bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of Isoflavone and Exercise on BMD and Fat Mass in Postmenopausal Japanese Women: A 1-Year Randomized Placebo-Controlled Trial
Authors: Wu Jian , Oka Jun , Tabata Izumi , Higuchi Mitsuru , Toda Toshiya , Fuku Noriyuki , Ezaki Junko , Sugiyama Fumie , Uchiyama Shigeto , Yamada Kazuhiko , Ishimi Yoshiko
Published: May 2006

The combined intervention of isoflavone intake and walking exercise over 1 year in postmenopausal Japanese women exhibited a trend for a greater effect on prevention of bone loss at the total hip and Ward's triangle regions.

Introduction: The additive effects of isoflavones and exercise on bone and lipid metabolism have been shown in estrogen-deficient animals. In this study, we determined the effects of isoflavone intake, walking exercise, and their interaction on bone, fat mass, and lipid metabolism over 1 year in postmenopausal Japanese women.

Materials and Methods: A total of 136 postmenopausal women at <5 years after the onset of menopause were randomly assigned to four groups: (1) placebo, (2) walking (45 minutes/day, 3 days/week) with placebo, (3) isoflavone intake (75 mg of isoflavone conjugates/day), and (4) combination of isoflavone plus walking. BMD, fat mass, serum lipid, and serum and urinary isoflavone concentrations were assessed.

Results: A significant main effect of isoflavone on the reduction in trunk fat mass was obtained at 12 months. Significant main effects of walking on the reduction in fat mass in the whole body and the trunk were observed at 3, 6, and 12 months and that in the legs and arms at 6 and 12 months. Serum high-density lipoprotein (HDL)-cholesterol concentration significantly increased by 12 months after the walking and the combined intervention. After 12 months, a significant main effect of isoflavone on BMD was observed only at Ward's triangle. Walking prevented bone loss at the total hip and the Ward's triangle to significant degrees. The effect of the combined intervention on BMD at total hip and Ward's triangle regions was greater than that of either alone. No significant interaction was observed between isoflavone and walking in any measurements recorded during the study.

Conclusions: Our study suggest that combined intervention of 75 mg/day of isoflavone intake and walking exercise 3 times/week for 1 year showed a trend for a greater effect on BMD at total hip and Ward's triangle regions than either alone. Intervention with isoflavone in postmenopausal Japanese women showed a modest effect on BMD compared with those in Westerners. Further studies over longer treatment duration that include assessment of BMD at various regions are necessary to ascertain the clinical significance of the combined intervention of isoflavone plus walking in postmenopausal women.
Optimization of the Shape of Magnetic Field Concentrators to Improve the Sensitivity of Hall Sensors (Optimierung von Konzentratoren für magnetische Felder für die Steigerung der Empfindlichkeit bei Hallsensoren)
Authors: Leroy Paul , Coillot Christophe , Roux Alain , Chanteur Gérard
Published: May 2006

This paper describes the design of a set of two magnetic concentrators which can be used to intensify the magnetic field in the active region of magnetic sensors, such as Hall sensors. Literature provides many examples of magnetic amplification, but magnetic gains never exceed 100 typically [1, 2]. We demonstrate that larger magnetic field amplification (∼1000 and even higher) can be achieved by implementing an appropriate geometry. Magnetic field amplification can even exceed the theoretical value fixed by the relative permeability of the material. Thus the effective sensitivity of Hall sensors can be improved by at least three orders of magnitude by implementing them inside especially tailored magnetic concentrators; noise-equivalent magnetic induction spectral density (NEMI spectral density) down to 10 pT/√Hz should be reached, using a good conditioning electronics. We present a formulation of our design process as an optimization problem and use it to find an optimum shape for the magnetic concentrators in a simple case.
Tag Detection by an Electromagnetic Sensor (Erkennung von ID-Tags mit elektromagnetischem Sensor)
Authors: Zitouni Adel , Beheim Larbi , Belloir Fabien , Nuzillard Danielle
Published: May 2006

We describe an eddy current sensor based on the induction balance principle for the buried conductive tag recognition. The objective is to identify the various types of ground pipes without excavation. The principle is to associate to each pipe type a characteristic tag incorporating conductive elements. We present the changes made to the first sensor generation with the aim of view to improve its performances. We also describe the sensor modeling and its optimization by the replacement of the flat coils by turned coils. The other principal modifications are the integration of a numerical lock in detection and the use of an audio amplifier to improve the excitation signal. We show the results of methods used to recognize the two coding systems. We conclude by a summary of the improvements obtained and suggestions for future work.
Gene expression profiling of individual bovine nuclear transfer blastocysts
Authors: Somers Joanna , Smith Craig , Donnison Martyn , Wells David N , Henderson Harold , McLeay Lance , Pfeffer P L
Published: May 2006

During somatic cell nuclear transfer the gene expression profile of the donor cell has to be changed or reprogrammed extensively to reflect that of a normal embryo. In this study we focused on the switching on of embryonic genes by screening with a microarray consisting of 5000 independent cDNA isolates derived from a bovine blastocyst library which we constructed for this purpose. Expression profiling was performed using linearly amplified RNA from individual day 7 nuclear transfer (NT) and genetically half-identical in vitro produced (IVP) blastocysts. We identified 92 genes expressed at lower levels in NT embryos whereas transcripts of 43 genes were more abundant in NT embryos (P ≤ 0.05, ≥ 1.5-fold change). A range of functional categories was represented among the identified genes, with a preponderance of constitutively expressed genes required for the maintenance of basal cellular function. Using a stringent quantitative SYBR-green real time RT-PCR based approach we found, when comparing the means of the expression levels of a larger set of individual embryos, that differences were small (< 2-fold) and only significant for two of the seven analysed genes (KRT18, SLC16A1). Notably, examination of transcript levels of a single gene in individual embryos could not distinguish an NT from a control embryo. This unpredictability of individual gene expression on a global background of multiple gene expression changes argues for a predominantly stochastic nature of reprogramming errors.
Vascular composition, apoptosis, and expression of angiogenic factors in the corpus luteum during prostaglandin F2α-induced regression in sheep
Authors: Vonnahme Kimberly A , Redmer Dale A , Borowczyk Ewa , Bilski Jerzy J , Luther Justin S , Johnson Mary Lynn , Reynolds Lawrence P , Grazul-Bilska Anna T
Published: May 2006

Corpora lutea and blood samples were collected from superovulated ewes 0, 4, 8, 12 and 24 h after prostaglandin F2α (PGF) analog injection on day 10 of the estrous cycle. Changes in vascular cell and fibroblast composition, apoptosis and mRNA expression for several angiogenic factors in the corpus luteum (CL) were determined. While peripheral progesterone concentration decreased at 24 h after PGF injection, CL weight did not change. The area of positive BS-1 lectin staining (endothelial cell marker), smooth muscle cell actin (SMCA; pericyte and SMC marker), collagen type 1 (fibroblast marker), and the rate of cell death changed in luteal tissues after PGF treatment. In association with these cellular changes, mRNA for several angiogenic factors including vascular endothelial growth factor (VEGF) and receptors (Flt and KDR), basic fibroblast growth factor (FGF2) and receptor, angiopoietin (ANGPT) 1 and receptor Tie-2, endothelial nitric oxide synthase (NOS3), and angiotensin II receptor 1 (AT1) were altered. Changes in endothelial cell marker expression were positively correlated with changes in VEGF and NO systems. In addition, changes in mRNA expression for VEGF, Flt and KDR were positively correlated with changes in ANGPT2, Tie-2, and NOS3, indicating a functional relationship. This data demonstrates that after an initial increase, the endothelial component of the vascular bed decreases during PGF-induced luteal regression. However, SMCA expression remained high during luteal regression, potentially indicating a role of pericytes and vascular SMC in luteolysis, likely to regulate tissue remodeling and to maintain the integrity of larger blood vessels. Further, it appears that early regression may increase collagen type 1 production and/or expression by fibroblasts. Expression of angiogenic factors is influenced by PGF-induced luteolysis and may serve to maintain vascular structure in order to aid luteal regression.
Rabbits generated from fibroblasts through nuclear transfer
Authors: Li Shangang , Chen Xuejin , Fang Zhenfu , Shi Jianjun , Sheng Hui Z
Published: May 2006

Somatic cell nuclear transfer offers new opportunities for genetic engineering and genome preservation in mammalian animal species. We show that, in addition to cumulus cells, cultured adult rabbit fibroblasts are also capable of supporting full-term development after nuclear transfer. Nuclear transfer embryos constructed using serum-starved fibroblasts showed a significantly higher developmental rate than non-starved fibroblasts through preimplantation stages. A total of 467 nuclear transfer embryos were transferred into the oviducts of pseudo pregnant mothers. Eight of the 20 surrogate rabbits carried the pregnancy to term and five of them gave birth naturally to a total of nine rabbits. However, all of the offspring died before postnatal day 10. A Caesarean section was performed on three surrogates, giving birth to a total of five rabbits, three of them survived and grew into healthy adults. DNA analyses confirmed that these rabbits were genetically identical to the donor male rabbit. The present study demonstrates that rabbits can be cloned from adult fibroblasts after culture.
Results of First Experiments on Application of Electrical Stimulation of Blue Catfish Testes for Production of Channel Catfish × Blue Catfish Hybrids
Authors: Green Christopher C , Kelly Anita M , Chatakondi Nagaraj
Published: May 2006

Commercial interest in production of F1 hybrids of female channel catfish Ictalurus punctatus × male blue catfish I. furcatus has increased dramatically. However, current production methods are unable to provide large numbers of hybrid fingerlings for commercial producers. Increasing the hatch rates of hybrid embryos will aid in making large-scale hybrid production a feasible option for the catfish industry. The objectives of this study were to determine (1) whether electrical stimulation of excised testes of Rio Grande and D&B strain blue catfish (Kincaid et al. 2000) produce changes in the motility rank, motility time, and concentration of spermatozoa and (2) whether differences exist between the fertilization rates for spermatozoa obtained from electrically stimulated testes and those from nonstimulated testes for the two strains. Testes were excised from the males of both strains and one testis was subjected to electrical stimulation. Spermatozoa were removed, counted, checked for motility ranking, and used to fertilize eggs. Electrical stimulation did not significantly affect motility rank, motility time, or spermatozoa concentration for either strain. The fertilization of channel catfish eggs was significantly higher for spermatozoa from electrically stimulated Rio Grande strain testes (93.0 ± 3.5%) than for those from nonstimulated testes (76.2 ± 16.8%). The fertilization rate was not significantly higher for spermatozoa from electrically stimulated testes in D&B strain blue catfish. Hatch rate was not significantly different for eggs fertilized with spermatozoa from electrically stimulated testes in either strain. Modulation of voltage, amperage, and cycle times with larger sample sizes should be investigated further to determine whether a range of effects exists among the parameters measured and the intensity of stimulation.
Detection of Protein‐Protein Interactions by Coprecipitation
Authors: Elion Elaine A.
Published: May 2006

Coprecipitation of proteins from whole‐cell extracts is a valuable approach to testing for physical interactions between proteins of interest. When a precipitating antibody is used, this method is referred to as co‐immunoprecipitation. Coprecipitation can be used to study interactions between known proteins and as a means of identifying components of a complex. This unit describes basic approaches to immunoprecipitating tagged proteins from whole‐cell extracts. The extract is prepared under nondenaturing conditions, the protein of interest is precipitated, and the precipitate is tested for a second specifically associated protein. The approach can be used for native or epitope‐tagged proteins for which antibodies are available, or for recombinant proteins that bind with high affinity to a molecule that can be coupled to a solid‐phase matrix. An associated protein is detected by separating the precipitated proteins by SDS‐PAGE and immunoblotting with a second antibody that recognizes the putative associated protein.
Immunophenotyping of Plasma Cells
Authors: Rawstron Andy C.
Published: May 2006

Plasma cell enumeration and immunophenotyping has been shown to be of value in predicting the outcome for patients with myeloma. Detection of abnormal plasma cells at a leukocyte level >0.01% at the end of therapy predicts early relapse. Although clonally related populations at varying stages of differentiation are reported to be present in myeloma, only the CD138+ fraction has been shown to directly correlate with the outcome. In addition, the plasma cell immunophenotype in monoclonal gammopathy of undetermined significance (MGUS) is reported to correlate with the risk of progression to myeloma. This protocol provides a four‐color flow cytometry method for enumeration and classification of plasma cells in both diagnostic and post‐treatment samples. Plasma cells are identified by strong expression of CD38 and CD138. Neoplastic plasma cells are separated from their normal counterparts by aberrant expression of CD19 and other relevant markers in combination with intracellular immunoglobulin light chain restriction.
Systematisiertes Bauen mit vakuumgedämmten Betonfertigteilen
Authors: Hangleiter Matthias , Weismann Stephan
Published: May 2006

Es wurden vakuumgedämmte Betonfertigteile entwickelt, die bei einer Dicke von ca. 27 cm den für Passivhäuser erforderlichen Wärmedurchgangskoeffizienten (U‐Wert) von nur 0,15 W/m2K erreichen. Für eine industrialisierte Bauweise mit Vakuumisolationspaneelen (VIP) wurden neben der sicheren Integration der Dämmelemente zahlreiche wärmebrückenarme Anschluß‐ und Übergangsdetails entwickelt. Die Praxistauglichkeit der vakuumge‐ dämmten Betonfertigteile wurde an einem kürzlich fertiggestellten Demonstrationsobjekt in Ravensburg erfolgreich nachgewiesen. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Zur Visualisierung von Wärme‐ und Wasserdampfdiffusionsstrom bei dreidimensionaler Modellierung
Authors: Krecč Klaus , Kornicki Tomasz
Published: May 2006

Die Problematik der Darstellung des Wärme‐ und/oder Dampfdiffusionsstroms durch dreidimensional modellierte Baukonstruktionen wird aufgegriffen und eine praxistaugliche Methode zur raschen Erkennung von thermischen und/oder hygrischen Schwachstellen vorgestellt. Das Falschfarbenbild der sich an den Oberflächen des untersuchten Bauteils einstellenden Beträge der Wärme‐ und/oder Dampfdiffusionsstromdichten zeigt unmittelbar Bereiche erhöhten Wärme‐ oder Diffusionsstroms auf. Das Auszeichnen einzelner Stromlinien gibt zudem Einblick in den Weg des Wärme‐ oder Diffusionsstroms durch die Baukonstruktion. Die Aussagekraft des vorgestellten Verfahrens wird anhand eines mit dem neuen Wärmebrückenprogramm AnTherm dreidimensional durchgerechneten Beispiels demonstriert. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Pharmacokinetic/pharmacodynamic insulin‐glucose analysis for differentiation of beta‐cell function: an 18 month follow‐up study in pre‐pubertal lean and obese children
Authors: Gupta N. , Hoffman R.P. , Veng‐Pedersen P.
Published: May 2006

The objective of this study was to analyse the PK/PD of the insulin–glucose physiology for glucose stimulated insulin secretion from beta‐cells between lean and obese pre‐pubertal children in an 18 month study. The subjects were divided into two groups of six children according to their body mass index (BMI). Each subject was assessed on four occasions: on admission and at 6, 12 and 18 month follow‐ups. Each time, 23 blood samples were obtained from the subjects according to the frequently sampled intravenous glucose tolerance test involving a bolus of 250 mg/kg dextrose. For the obese group, a significant difference (p <0.05) was found in the rate constant for the first phase secretion of insulin between the time of admission (1.73 ± 0.372 min−1) and the 18 month follow‐up (3.08 ± 0.391 min−1). Additionally, the lean vs obese group comparisons showed a higher first phase insulin secretion rate constant (p <0.05) in the obese group on admission (1.73 ± 0.372 vs 1.29 ± 0.278 min−1), 6 months (1.96 ± 0.317 vs 1.32 ± 0.444 min−1), 12 months (2.33 ± 0.621 vs 1.57 ± 0.435 min−1) and 18 months (3.08 ± 0.391 vs 1.83 ± 0.587 min−1). The proposed PK/PD model for the insulin secretion from beta‐cells is able to identify kinetic differences in first phase insulin secretion between lean and obese non‐diabetic pre‐pubertal children in this 18 month follow‐up study. Copyright © 2006 John Wiley & Sons, Ltd.
Neutron Powder Diffraction Study of the Orthorhombic to Monoclinic Transition in Sc2W3O12 on Compression.
Authors: Varga Tamas , Wilkinson Angus P. , Jorgensen James D. , Short Simine
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Yb14MnSb11: New High Efficiency Thermoelectric Material for Power Generation.
Authors: Brown Shawna R. , Kauzlarich Susan M. , Gascoin Franck , Snyder G. Jeffrey
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Copper‐Promoted CeO2 Catalysts.
Authors: Jobbagy Matias , Marino Fernando , Schoenbrod Betina , Baronetti Graciela , Laborde Miguel
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Dimensional Reduction: Synthesis and Structure of Layered Li5M(PO4)2F2 (M: V, Cr).
Authors: Yin S.‐C. , Herle P. Subramanya , Higgins A. , Taylor N. J. , Makimura Y. , Nazar L. F.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective TADMAP‐Catalyzed Carboxyl Migration Reactions for the Synthesis of Stereogenic Quaternary Carbon.
Authors: Shaw Scott A. , Aleman Pedro , Christy Justin , Kampf Jeff W. , Va Porino , Vedejs Edwin
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The ortho Effect: Copper‐Catalyzed Highly Enantioselective 1,4‐Conjugate Addition of Diethylzinc to Chalcones.
Authors: Liu Lan‐Tao , Wang Min‐Can , Zhao Wen‐Xian , Zhou Yan‐Li , Wang Xiao‐Dan
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Use of Zinc Enolate, Free from Other Metals, in Enantioselective Palladium‐Catalyzed Allylic Alkylation.
Authors: Kinoshita Naosumi , Kawabata Takeo , Tsubaki Kazunori , Bando Masahiko , Fuji Kaoru
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Hydrogenation of Imines and Olefins Using Phosphine‐Oxazoline Iridium Complexes as Catalysts.
Authors: Trifonova Anna , Diesen Jarle S. , Andersson Pher G.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Allylation of Aldehydes Promoted by Chiral Sulfur Reagents.
Authors: Melo Rosanne P. A. , Vale Juliana A. , Zeni Gilson , Menezes Paulo H.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chiral Phosphoramide‐Catalyzed Enantioselective Addition of Allylic Trichlorosilanes to Aldehydes. Preparative and Mechanistic Studies with Monodentate Phosphorus‐Based Amides.
Authors: Denmark Scott E. , Fu Jiping , Coe Diane M. , Su Xiping , Pratt Norman E. , Griedel Brian D.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Gold(I)‐Catalyzed Cyclizations of 1,6‐Enynes: Alkoxycyclizations and exo/endo Skeletal Rearrangements.
Authors: Nieto‐Oberhuber Cristina , Munoz M. Paz , Lopez Salome , Jimenez‐Nunez Eloisa , Nevado Cristina , Herrero‐Gomez Elena , Raducan Mihai , Echavarren Antonio M.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Umpolung of Michael Acceptors Catalyzed by N‐Heterocyclic Carbenes.
Authors: Fischer Christian , Smith Sean W. , Powell David A. , Fu Gregory C.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
N‐Sulfonyloxy Carbamates as Reoxidants for the Tethered Aminohydroxylation Reaction.
Authors: Donohoe Timothy J. , Chughtai Majid J. , Klauber David J. , Griffin David , Campbell Andrew D.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Silphos [PCl3‐n(SiO2)n]: A Heterogeneous Phosphine Reagent for the Conversion of Epoxides to β‐Bromoformates or Alkenes.
Authors: Iranpoor Nasser , Firouzabadi Habib , Jamalian Arezu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Stereoselective Semihydrogenation of Alkynes Promoted by Nickel(0) Nanoparticles.
Authors: Alonso Francisco , Osante Inaki , Yus Miguel
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Microwave‐Promoted Rhodium‐Catalyzed Arylation of Heterocycles Through C—H Bond Activation.
Authors: Lewis Jared C. , Wu Jessica Y. , Bergman Robert G. , Ellman Jonathan A.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
(E)‐ or (Z)‐Selective Knoevenagel Condensation of Acetoacetic Derivatives: Effect of Acylated Substituent, that is, TEMPO and Amines, as an Auxiliary, and New Accesses to Trisubstituted (E)‐ and (Z)‐2‐Alkenals and Furans.
Authors: Inokuchi Tsutomu , Kawafuchi Hiroyuki
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric π‐Allylic Etherification of Cycloalkenyl Esters with Phenols in Water Using a Resin‐Supported Chiral Palladium Complex.
Authors: Uozumi Yasuhiro , Kimura Masahiro
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Regioselective Synthesis of gem‐Difluoroallenes Through Magnesium Organocuprate SN2′ Substitution.
Authors: Mae Masayuki , Hong Jiyoung A. , Xu Bo , Hammond Gerald B.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantioselective Addition of Diethylzinc to Aldehydes Catalyzed by γ‐Amino Alcohols Derived from (+)‐ and (‐)‐α‐Pinene.
Authors: Szakonyi Zsolt , Balazs Arpad , Martinek Tamas A. , Fueloep Ferenc
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Microwave‐ and Ultrasound‐Assisted Semisynthesis of Natural Methoxylated Propiophenones from Isomeric Mixture of Phenylpropenes in Minutes.
Authors: Joshi Bhupendra P. , Sharma Anuj , Sinha Arun K.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Access to Stereodefined Trisubstituted Alkenes via Rhodium‐Catalyzed 1,4‐Addition of Potassium Trifluoro(organo)borates to Baylis—Hillman Adducts.
Authors: Navarre Laure , Darses Sylvain , Genet Jean‐Pierre
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
New Hexaarylbenzene‐Containing Di‐ and Tetrafluoroarenes
Authors: Keshtov M. L. , Rusanov A. L. , Belomoina N. M. , Peregudov A. S. , Tkhakakhov E. R.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Low‐Valent Niobium‐Mediated Double Activation of C—F/C—H Bonds: Fluorene Synthesis from o‐Arylated α,α,α‐Trifluorotoluene Derivatives.
Authors: Fuchibe Kohei , Akiyama Takahiko
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Practical Aziridinations. Part 2. Electronic Modifications to Poly(pyrazolyl)borate—Copper Catalysts.
Authors: Handy Scott T. , Ivanow Anatole , Czopp Mark
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Pyridinium Ylides in the Synthesis of 2,3‐Dihydrofurans.
Authors: Chuang Che‐Ping , Tsai An‐I
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Synthesis of Hydrobenzofuranones via Desymmetrization of Cyclohexadienones Using the Intramolecular Stetter Reaction.
Authors: Liu Qin , Rovis Tomislav
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A New Approach to the Preparation of 1,3,4‐Triarylpyrroles.
Authors: Zeng De Xing , Chen Yi
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cu‐Catalyzed N‐Arylation of Oxazolidinones: An Efficient Synthesis of the ϰ‐Opioid Receptor Agonist CJ‐15161 (I).
Authors: Ghosh Arun , Sieser Janice E. , Caron Stephane , Couturier Michel , Dupont‐Gaudet Kristina , Girardin Melina
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
“On Water”‐Promoted Direct Coupling of Indoles with 1,4‐Benzoquinones Without Catalyst.
Authors: Zhang Hai‐Bo , Liu Li , Chen Yong‐Jun , Wang Dong , Li Chao‐Jun
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Simple Procedure for the Preparation of 6‐Chloro‐3‐acetoxy‐1‐acetylindole.
Authors: Balbuzano‐Deus Alexander , Rodriguez‐Dominguez Juan C. , Fernandez‐Villalobo Anais , Lopez‐Lopez Miguel , Kirsch Gilbert
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Application of a Thermal β‐Elimination Reaction to N‐Alkoxy‐3,3‐dinitroisoxazolidines: Synthesis of 3‐Nitroisoxazolines.
Authors: Ivanova Olga A. , Budynina Ekaterina M. , Averina Elena B. , Kuznetsova Tamara S. , Zefirov Nikolai S.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Synthesis of Novel N‐Sulfonylated β‐Amino Acids.
Authors: Freitag Dirk , Metz Peter
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chiral Version of the Burgess Reagent and Its Reactions with Epoxides.
Authors: Leisch Hannes , Saxon Rachel , Sullivan Bradford , Hudlicky Tomas
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Hafnium Chloride Tetrahydrofuran Complex‐Catalyzed Diels—Alder Cycloadditions of 3‐Ethoxycarbonylcoumarins with 1,3‐Dienes under Solvent‐Free Conditions.
Authors: Fringuelli Francesco , Girotti Rugiada , Pizzo Ferdinando , Zunino Ennio , Vaccaro Luigi
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Chemoselective Thioacetalization with Odorless 2‐(1,3‐Dithian‐2‐ylidene)‐3‐oxobutanoic Acid as a 1,3‐Propanedithiol Equivalent.
Authors: Yu Haifeng , Dong Dewen , Ouyang Yan , Liu Qun
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Asymmetric Synthesis of 3‐Substituted γ‐ and δ‐Sultams.
Authors: Enders Dieter , Moll Alexander , Bats Jan W.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
GaCl3‐Promoted One‐Step α,α‐Diethynylation and α,α‐Diethenylation Reactions of Silyl Enol Ethers.
Authors: Amemiya Ryo , Miyake Yutaka , Yamaguchi Masahiko
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Facile Synthesis of Stable Phosphorus Ylides Derived from Harmin, Harman, and Carbazole.
Authors: Khorassani Sayyed Mostafa Habibi , Maghsoodlou Malek Taher , Hazeri Nourollah , Nassiri Mahmoud , Marandi Ghasem , Shahzadeh Agil Ghulame
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Zinc‐Mediated Synthesis of Diaryl Selenides from Diaryl Diselenides and Diaryliodonium Salts in Aqueous Media.
Authors: Movassagh Barahman , Fazeli Azadeh
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Total Synthesis of (.+‐.)‐Merrilactone A.
Authors: Mehta Goverdhan , Singh S. Robindro
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Cytotoxic Terpenoids from Dasyscyphus niveus
Authors: Rojas de la Parra Veronica , Mierau Viktor , Anke Timm , Sterner Olov
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Iterative, Aqueous Synthesis of β3‐Oligopeptides Without Coupling Reagents.
Authors: Carrillo Nancy , Davalos Eric A. , Russak Justin A. , Bode Jeffrey W.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Application of Oppolzer′s Sultam in the Synthesis of Cyclic α‐Amino Acids and β‐Amino Acids.
Authors: Wozniak D. , Szymanska A. , Oldziej S. , Lankiewicz L. , Grzonka Z.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Enantiomerically Enriched Allylglycine Derivatives Through the Catalytic Asymmetric Allylation of Iminoesters and Iminophosphonates with Allylsilanes.
Authors: Kiyohara Hiroshi , Nakamura Yoshitaka , Matsubara Ryosuke , Kobayashi Shu
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Selective Synthesis of α‐C‐(Alkynyl)‐galactosides by an Efficient Tandem Reaction.
Authors: Guillarme Stephane , Ple Karen , Haudrechy Arnaud
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Niruriflavone, a New Antioxidant Flavone Sulfonic Acid from Phyllanthus niruri.
Authors: Than N. N. , Fotso S. , Poeggeler B. , Hardeland R. , Laatsch H.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Stereocontrolled Formation of Three Contiguous Stereogenic Centers by Free Radical Cyclization — Synthesis of (+)‐Iridomyrmecin and (‐)‐Isoiridomyrmecin — Formal Synthesis of δ‐Skythantine
Authors: Schoellhorn Bernd , Mulzer Johann
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Non‐Alkoxide Sol—Gel Method for the Preparation of Homogeneous Nanocrystalline Powders of La0.85Sr0.15MnO3.
Authors: Chervin Christopher N. , Clapsaddle Brady J. , Chiu Hsiang Wei , Gash Alexander E. , Satcher Joe H. Jr. , Kauzlarich Susan M.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis and Preliminary Biological Evaluation of the 99mTc Labeled Nitrobenzoimidazole and Nitrotriazole as Tumor Hypoxia Markers.
Authors: Zhang Yu , Chu Taiwei , Gao Xuguang , Liu Xinqi , Yang Zhi , Guo Zhenquan , Wang Xiangyun
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Why Gold Nanoparticles Are More Precious than Pretty Gold: Noble Metal Surface Plasmon Resonance and Its Enhancement of the Radiative and Nonradiative Properties of Nanocrystals of Different Shapes
Authors: Eustis Susie , El‐Sayed Mostafa A.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
The Uptake of Acidic Gases on Ice
Authors: Huthwelker Thomas , Ammann Markus , Peter Thomas
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Steric and Electronic Effects in the Bonding of N‐Heterocyclic Ligands to Transition Metals.
Authors: Cavallo Luigi , Correa Andrea , Costabile Chiara , Jacobsen Heiko
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Rhenium and Technetium Complexes with N‐Heterocyclic Carbenes.
Authors: Braband Henrik , Kueckmann Theresa I. , Abram Ulrich
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
NHC Ligands versus Cyclopentadienyls and Phosphines as Spectator Ligands in Organometallic Catalysis.
Authors: Crabtree Robert H.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Contributions to the Chemistry of Carbenemetal Chemistry.
Authors: Lappert Michael F.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Synthesis of Azoles with Two Pyridine Substituents at Carbon Atoms and Their Use in Coordination Chemistry
Authors: Vatsadze S. Z. , Nuriev V. N. , Zyk N. V.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Ferrocene Conjugates of Amino Acids, Peptides and Nucleic Acids
Authors: Kraatz Heinz‐Bernhard
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
β‐Haloalkylboranes
Authors: Ali H. Abu , Dembitsky V. M. , Srebnik M.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Aryl‐ and Hetarylboranes
Authors: Miyaura N.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
α‐Alkoxyalkyl‐, α‐Sulfanylalkyl‐, and α‐Aminoalkylboronates
Authors: Matteson D. S.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Phosphinoboranes and Borane—Phosphine Complexes
Authors: Gaumont A. C. , Carboni B.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Vinyloxyboranes
Authors: Gennari C. , Ceccarelli S. , Piarulli U.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Porphyrins, Phthalocyanines and Related Compounds as Materials for Optical Limiting
Authors: Dini Danilo , Yang Guo Y. , Hanack Michael
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
A Theoretical Approach to Solid‐State Organic Photochemistry: Mechanistic and Exploratory Organic Photochemistry
Authors: Zimmerman Howard E.
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Single‐Scan 2D NMR
Authors: Frydman Lucio
Published: May 2006

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Central projections of melanopsin‐expressing retinal ganglion cells in the mouse
Authors: Hattar Samer , Kumar Monica , Park Alexander , Tong Patrick , Tung Jonathan , Yau King‐Wai , Berson David M.
Published: May 2006

A rare type of ganglion cell in mammalian retina is directly photosensitive. These novel retinal photoreceptors express the photopigment melanopsin. They send axons directly to the suprachiasmatic nucleus (SCN), intergeniculate leaflet (IGL), and olivary pretectal nucleus (OPN), thereby contributing to photic synchronization of circadian rhythms and the pupillary light reflex. Here, we sought to characterize more fully the projections of these cells to the brain. By targeting tau‐lacZ to the melanopsin gene locus in mice, ganglion cells that would normally express melanopsin were induced to express, instead, the marker enzyme β‐galactosidase. Their axons were visualized by X‐gal histochemistry or anti‐β‐galactosidase immunofluorescence. Established targets were confirmed, including the SCN, IGL, OPN, ventral division of the lateral geniculate nucleus (LGv), and preoptic area, but the overall projections were more widespread than previously recognized. Targets included the lateral nucleus, peri‐supraoptic nucleus, and subparaventricular zone of the hypothalamus, medial amygdala, margin of the lateral habenula, posterior limitans nucleus, superior colliculus, and periaqueductal gray. There were also weak projections to the margins of the dorsal lateral geniculate nucleus. Co‐staining with the cholera toxin B subunit to label all retinal afferents showed that melanopsin ganglion cells provide most of the retinal input to the SCN, IGL, and lateral habenula and much of that to the OPN, but that other ganglion cells do contribute at least some retinal input to these targets. Staining patterns after monocular enucleation revealed that the projections of these cells are overwhelmingly crossed except for the projection to the SCN, which is bilaterally symmetrical. J. Comp. Neurol. 497:326–349, 2006. © 2006 Wiley‐Liss, Inc.
Amperometric Algal Chlorella vulgaris Cell Biosensors Based on Alginate and Polypyrrole‐Alginate Gels
Authors: Ionescu Rodica E. , Abu‐Rabeah Khalil , Cosnier Serge , Durrieu Claude , Chovelon Jean‐Marc , Marks Robert S.
Published: May 2006

The successful development and analytical performances of two biosensor configurations based on the entrapment of algal cells of Chlorella vulgaris into either a regular alginate gel or a newly synthesized pyrrole‐alginate matrix are reported. These biosensors were compared in terms of their amperometric current measurements to p‐nitrophenyl phosphate when used as substrate for the detection of an algal alkaline phosphatase activity. The high stability of the pyrrole‐alginate gel when compared to that of the alginate coating is herein demonstrated.
Electrochemical Detection of Heparin Based on Its Interaction with Light Green
Authors: Sun Wei , Ding Yaqin , Wang Qingxiang , Jiao Kui
Published: May 2006

The determination of heparin with linear sweep voltammetry has been developed in this paper based on its interaction with light green (LG). In pH 2.0 Britton–Robinson (B–R) buffer solution, LG has a sensitive linear sweep voltammetric reduction peak at −0.41 V (vs. SCE) and heparin can react with LG to form an ion‐association electro‐active complex, which resulted in the decrease of the peak current of the reaction solution. Under the selected experimental conditions the decrease of peak current was directly proportional to the concentration of heparin in the range of 0.8–20.0 μg/mL with the linear regression equation as Δi$\rm{ {_{p}^{\prime\prime }}}$(nA)=79.12C−101.44 (n=14,γ=0.996) and the detection limit as 0.28 μg/mL (3σ). The effects of coexisting substances on the determination of heparin were investigated and the results showed that this method had good selectivity. The method was further applied to the determination of heparin content in heparin samples with satisfactory results and good recovery.
Reagentless Glucose Biosensor Based on the Direct Electrochemistry of Glucose Oxidase on Carbon Nanotube‐Modified Electrodes
Authors: Luo Xiliang , Killard Anthony J. , Smyth Malcolm R.
Published: May 2006

The direct electrochemistry of glucose oxidase (GOD) was revealed at a carbon nanotube (CNT)‐modified glassy carbon electrode, where the enzyme was immobilized with a chitosan film containing gold nanoparticles. The immobilized GOD displays a pair of redox peaks in pH 7.4 phosphate buffer solutions (PBS) with the formal potential of about −455 mV (vs. Ag/AgCl) and shows a surface‐controlled electrode process. Bioactivity remains good, along with effective catalysis of the reduction of oxygen. In the presence of dissolved oxygen, the reduction peak current decreased gradually with the addition of glucose, which could be used for reagentless detection of glucose with a linear range from 0.04 to 1.0 mM. The proposed glucose biosensor exhibited high sensitivity, good stability and reproducibility, and was also insensitive to common interferences such as ascorbic and uric acid. The excellent performance of the reagentless biosensor is attributed to the effective enhancement of electron transfer between enzyme and electrode surface by CNTs, and the biocompatible environment that the chitosan film containing gold nanoparticles provides for immobilized GOD.