bluuebunny/crossref_metadata_2025_split huggingface dataset:
ChemInform Abstract: Noncovalent Keystone Interactions Controlling Biomembrane Structure
Authors: Hanshaw Roger G. , Stahelin Robert V. , Smith Bradley D. 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Polychromophoric Metal Complexes for Generating the Bioregulatory Agent Nitric Oxide by Single‐ and Two‐Photon Excitation
Authors: Ford Peter C. 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Caffeine and Related Purine Alkaloids: Biosynthesis, Catabolism, Function and Genetic Engineering
Authors: Ashihara Hiroshi , Sano Hiroshi , Crozier Alan 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Selenium Compounds and Selenoproteins in Cancer
Authors: Brigelius‐Flohe Regina 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: New Carbon Materials: Biological Applications of Functionalized Nanodiamond Materials
Authors: Krueger Anke 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Structural Diversity in Expanded Porphyrins
Authors: Misra Rajneesh , Chadrashekar Tavarekere K. 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Computational NMR Spectroscopy: Reversing the Information Flow
Authors: Bagno Alessandro , Saielli Giacomo 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: 19F NMR Spectroscopy as a Characterization Tool for Substituted Ferrocene
Authors: Hawrelak E. J. 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Using 95Mo NMR Spectroscopy in the Synthesis and Characterization of Mo(CO)6‐n(CNR)n Complexes
Authors: Minelli Martin 
Published: May 2008

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Frontal cortex subdivision patterning is coordinately regulated by Fgf8, Fgf17, and Emx2
Authors: Cholfin Jeremy A. , Rubenstein John L.R. 
Published: May 2008

AbstractThe frontal cortex (FC) plays a major role in cognition, movement and behavior. However, little is known about the genetic mechanisms that govern its development. We recently described a panel of gene expression markers that delineate neonatal FC subdivisions and identified FC regionalization defects in Fgf17–/– mutant mice (Cholfin and Rubenstein [2007] Proc. Natl. Acad. Sci. U. S. A. [in press]). In the present study, we applied this FC gene expression panel to examine regionalization phenotypes in Fgf8neo/neo, Emx2–/–, and Emx2–/–;Fgf17–/– newborn mice. We report that Fgf8, Fgf17 and Emx2 play distinct roles in the molecular regionalization of FC subdivisions. The changes in regionalization are presaged by differential effects of rostral patterning center Fgf8 and Fgf17 signaling on the rostral cortical neuroepithelium, revealed by altered expression of Spry1, Spry2, and “rostral” transcription factors Er81, Erm, Pea3, and Sp8. We used Emx2–/–;Fgf17–/– double mutants to provide direct evidence that Emx2 and Fgf17 antagonistically regulate the expression of Erm, Pea3, and Er81 in the rostral cortical neuroepithelium and FC regionalization. We have integrated our results to propose a model for how fibroblast growth factors regulate FC patterning through regulation of regional transcription factor expression within the FC anlage. J. Comp. Neurol. 509:144–155, 2008. © 2008 Wiley‐Liss, Inc.
Numerical modelling of instability and supercritical oscillatory states in a Czochralski model system of oxide melts
Authors: Crnogorac N. , Wilke H. , Cliffe K. A. , Gelfgat A. Yu. , Kit E. 
Published: May 2008

AbstractThe motivation for this study is the need for accurate numerical models of melt flow instabilities during Czochralski growth of oxides. Such instabilities can lead to undesirable spiralling shapes of the bulk crystals produced by the growing process. The oxide melts are characterized by Prandtl numbers in the range 5<Pr <20, which makes the oxide melt flow qualitatively different from the intensively studied flows of semiconductors characterized by smaller Prandtl numbers Pr <0.1. At the same time, these flows can be modelled experimentally by many transparent test fluids (e.g. water, silicon oils, salt melts), which have similar Prandtl numbers, but allow one to avoid the extremely high melting‐point temperatures of the oxide materials. Most previous studies of melt instabilities for Prandtl numbers larger than unity suffer from a lack of accuracy that is caused by the use of coarse grids. Recent convergence studies made for a series of simplified problems and for a hydrodynamic model of Czochralski growth showed that for a second order finite volume method reliable stability results can be obtained on grids having at least 100 nodes in the shortest spatial direction. The obvious numerical difficulties call for an extensive benchmark exercise, which is proposed here on the basis of recently published experimental and numerical data, as well as some preliminary results of this study. The calculations presented are performed by two independent numerical approaches, which are based on second‐order finite volume and finite element discretizations. We start our comparison from the steady states, whose parametric dependencies sometimes exhibit turning points and multiplicity. We then compare the critical temperature differences corresponding to the onset of instability, and finally compare calculated supercritical oscillatory states and phase plots. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Psychosocial Aspects of Laparoscopic Donor Nephrectomy: Donor Impressions
Authors: Slakey Douglas P. , Altman Andrew M. , Bhutto Junaid , Paramesh Anil S. , Killackey Mary T. , Alper A. Brent , Zhang Rubin , Florman Sander S. 
Published: May 2008

AbstractBACKGROUNDLaparoscopic donation has become the most common technique for living donor kidney transplantation. Despite claims of greater patient acceptance, Significant increases in living donation, relative to the waiting list, have not been realized. Defining laparoscopic donors′ long‐term psychosocial impressions may allow for strategies to increase rates of living donation.METHODSThe study method was a retrospective telephone survey inquiring into pre‐donation perceptions, hospital experiences, and post‐donation psychosocial issues.RESULTSEighty‐one patients who had undergone laparoscopic donation with at least a 1‐year follow‐up were interviewed. Twenty‐one percent first heard about this procedure from sources other than healthcare workers or their recipients. Overall, 99% believed they were adequately informed, and 35% reported pre‐operative testing was difficult. Seventy‐four percent of patients reported a positive impression of the hospital stay, although 52% reported more post‐operative pain then expected. Sixty‐one percent of patients returned to work within a month. Nine percent reported financial burden, and 6% reported difficulties with insurance. Eighty‐four percent believed the recipient had a good outcome. Ninety‐four percent would donate again if possible.CONCLUSIONThis study confi rms that long‐term donor perceptions of laparoscopic nephrectomy remain favorable. Most donors are knowledgeable about this procedure, but perceptions may be erratic because of varied sources. Early contact with the transplant team is essential in providing an educational and streamlined experience to the laparoscopic donor in renal transplant.
B‐Natriuretic Peptide for the Prevention of Radiocontrast‐Induced Nephropathy
Authors: Kamalakannan Desikan , Lattupalli Rakesh , Mesiha Nancy , Ganoff Michelle , Steigerwalt Susan , Provenzano Robert , Khairullah Quresh , Rosman Howard 
Published: May 2008

AbstractBACKGROUND:The hypothesis of the study was that infusion of B‐natriuretic peptide (BNP), by increasing renal vasodilatation and glomerular filtration, would reduce the incidence of radiocontrast nephropathy (RCIN) after cardiac catheterization in patients with preexisting renal insufficiency.METHODS:The study was a single‐center, prospective, randomized, double‐blind, placebo‐controlled pilot study of 50 patients. Patients with a baseline serum creatinine (SCr) > 1.5 mg/dL not on dialysis undergoing elective cardiac catheterization with visipaque (nonionic, iso‐osmolal contrast) were enrolled. Patients were randomly assigned to receive intravenous BNP or placebo infusion. RCIN was defined as SCr increase ≥ 0.5 mg/dL at 48 hours post‐contrast administration.RESULTS:There were no significant differences in baseline characteristics between the 2 groups. The incidence of RCIN was 3.8% (1 of 26) in the BNP group versus 12.5% (3 of 24) in the placebo group (p = 0.340). None of the patients who developed RCIN required renal replacement therapy, and all their SCr values returned to baseline on posthospital follow‐up. On logistic regression only the baseline SCr was an independent predictor of RCIN.CONCLUSIONS:BNP infusion shows a nonsignificant trend of reduction in the incidence of RCIN in patients with chronic renal insufficiency undergoing elective cardiac catheterization. Further large‐scale trials are needed to determine the usefulness of BNP infusion to prevent RCIN.
Switchable Fluorescent and Solvatochromic Molecular Probes Based on 4‐Amino‐N‐methylphthalimide and a Photochromic Diarylethene (Eur. J. Org. Chem. 15/2008)
Authors: Yan Sergey F. , Belov Vladimir N. , Bossi Mariano L. , Hell Stefan W. 
Published: May 2008

AbstractThe cover picture is misleading! the light‐induced changes of a newly designed photochromic, fluorescent, and solvatochromic compound. The open isomer (top) is colorless and fluorescent. Its emission changes from blue to yellow‐green with increasing polarity of the solvent (in the picture: cyclohexane, tetrachloromethane, benzene, toluene, xylene, and dioxane, from left to right). The closed isomer (bottom) is blue and nonemissive (for clarity, the picture was taken with some amount of the open isomer remaining). UV and visible (green) light interconverts both isomers. As a result, the dye provides multiple readout signals: color changes, on/off switching of the fluorescence signal, and the color of the emission that can be used to sense changes in the polarity of the microenvironment. Detailed synthesis and properties are reported in the article by M. L. Bossi et al. on p. 2531 f. Irene B?ttcher‐Gajewski (MPI for Biophysical Chemistry) is acknowledged for the photographical content of the cover picture.
Two new species and one new subspecies of AspidistraKer‐Gawl. (Ruscaceae) from Vietnam
Authors: Tillich H.‐J. , Averyanov L. V. 
Published: May 2008

AbstractTwo species and one subspecies of Aspidistra Ker‐Gawl. (Ruscaceae) from Vietnam new to science are described: A. brachystyla L.V.Averyanov & H.‐J.Tillich, A. nikolai L.V.Averyanov & H.‐J. Tillich, and A. fungilliformis Y.Wan subsp. formosa H.‐J.Tillich. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
A survey of the orophilous shrubby vegetation of the Teide (Tenerife, Canary Islands)
Authors: Brullo C. , Brullo S. , De Marco G. , Giusso del Galdo G. , Guarino R. 
Published: May 2008

AbstractA survey about the orophilous shrubby vegetation of the Teide volcano (Tenerife) is provided, based on literature and unpublished data. The investigated communities are dominated by broom‐shaped nanophanerophytes, chamaephytes and hemicryptophytes, well adapted to the climatic continentality characterizing their growing‐sites, due to the localization above the cloud layer. From the syntaxonomical point of view, in this paper is proposed to refer this vegetation to the class Cytiso‐Pinetea canariensis Rivas Goday & Esteve ex Sunding 1972, to the order Spartocytisetalia supranubii Schönfelder & Voggenreiter 1994 and to three alliances: Spartocytision supranubii Oberd. ex Esteve 1973, grouping the broom‐shrublands occurring on relatively developed andosoils; Juniperion cedri all. nova, regarding the juniper communities colonizing steep rocky slopes; Violion cheiranthifoliae all. nova, grouping the hemicryptophytic communities of screes and unstable substrata. To support the syntaxonomic proposal, a multivariate numerical analysis, considering literature and personal data, has been performed. Moreover, considerations on the role that bioclimate plays on these plant‐communities are given too. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Bemerkungen zu einigen Eozän‐Originalen der Sammlungen Friedrich (Quercus L.) und Cotta (ComocladiaP.Browne) des Museums für Naturkunde, Berlin
Authors: Kahlert E. , Rüffle L. 
Published: May 2008

AbstractIn der vorliegenden Arbeit erfolgen Aussagen zur Systematik und Stratigraphie des Eozäns aus dem Staré Sedló‐Gebirge (Tschechien) und den Orten Riestedt, Bornstedt und Dörstewitz (Sachsen‐Anhalt) an Hand von Belegstücken der Sammlungen Friedrich und Cotta aus dem Bestand des Museum für Naturkunde der Humboldt‐Universität zu Berlin. Beziehungen zu rezenten Familien und Gattungen wurden geprüft. Fagaceae‐Epidermen geben einen Hinweis auf Beziehungen zum amerikanischen Untereozän. Die behandelten Anacardiaceae aus der Sammlung Cotta konnten der Gattung Comocladia zugeordnet werden und weisen auf Mittelamerika hin (Raven & Axelrod 1974). (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Two sphingolipid transfer proteins, CERT and FAPP2: Their roles in sphingolipid metabolism
Authors: Yamaji Toshiyuki , Kumagai Keigo , Tomishige Nario , Hanada Kentaro 
Published: May 2008

AbstractRecent discoveries of two sphingolipid transfer proteins, CERT and FAPP2, have brought the field of sphingolipid metabolism to a more dynamic stage. CERT transfers ceramide from the endoplasmic reticulum (ER) to the Golgi apparatus, a step crucial for sphingomyelin (SM) synthesis. The pleckstrin homology (PH) domain and the FFAT motif of CERT restrict the direction of transfer and destination of ceramide through binding to phosphatidylinositol 4‐monophosphate (PI4P) at the Golgi and the ER resident proteins, VAPs, respectively. CERT is regulated by the phosphorylation and dephosphorylation of serine/threonine, in which protein kinase D, possibly casein kinase I, and PP2Cε are involved. On the other hand, FAPP2 transfers glucosylceramide (GlcCer) to appropriate sites for the synthesis of complex glycosphingolipids. Like CERT, FAPP2 contains a PH domain, the binding of which to PI4P is required for its localization to the Golgi. These observations indicate that lipid transfer proteins, CERT and FAPP2, spatially regulate lipid metabolism on the cytosolic side. © 2008 IUBMB IUBMB Life, 60(8): 511–518, 2008
Novel families of vacuolar amino acid transporters
Authors: Sekito Takayuki , Fujiki Yuki , Ohsumi Yoshinori , Kakinuma Yoshimi 
Published: May 2008

AbstractAmino acids are compartmentalized in the vacuoles of microorganisms and plants. In Saccharomyces cerevisiae, basic amino acids accumulate preferentially into vacuoles but acidic amino acids are almost excluded from them. This indicates that selective machineries operate at the vacuolar membrane. The members of the amino acid/auxin permease family and the major facilitator superfamily involved in the vacuolar compartmentalization of amino acids have been recently identified in studies using S. cerevisiae. Homologous genes for these transporters are also found in plant and mammalian genomes. The physiological significance in response to nitrogen starvation can now be discussed. © 2008 IUBMB IUBMB Life, 60(8): 519–525, 2008
Unilateral serous retinal detachment in a patient with thrombotic thrombocytopenic purpura
Authors: Harris Jonathan A. , Friedman Mark T. , Varma Mala 
Published: May 2008

AbstractOcular complications are a relatively common occurrence in patients with thrombotic thrombocytopenic purpura (TTP). Serous retinal detachment is a rare but reported complication, with most cases being bilateral and associated with concomitant hypertension. Therapeutic plasma exchange has been used to successfully treat patients with TTP. We report a case of a 46 year old woman who presented with TTP, received therapeutic plasma exchange, and developed unilateral serous retinal detachment with retinal pigment epithelial tear in the absence of reported hypertension. The increased perfusion pressure due to hypertension, combined with the choroidal vasculature damage from TTP are thought to lead to retinal epithelial tear. This suggests that although hypertension may play a role in retinal detachment in these patients, other mechanisms may be responsible. J. Clin. Apheresis, 2008. © 2008 Wiley‐Liss, Inc.
PARP‐1 modulates deferoxamine‐induced HIF‐1α accumulation through the regulation of nitric oxide and oxidative stress
Authors: Martínez‐Romero Rubén , Martínez‐Lara Esther , Aguilar‐Quesada Rocío , Peralta Andreína , Oliver F. Javier , Siles Eva 
Published: May 2008

AbstractPoly(ADP‐ribose) polymerase‐1 (PARP‐1) is a nuclear protein that, once activated by genotoxic agents, modulates the activity of several nuclear proteins including itself. Previous studies have established that PARP‐1 inhibition may provide benefit in the treatment of different diseases, particularly those involving a hypoxic situation, in which an increased oxidative and nitrosative stress occurs. One of the most important transcription factors involved in the response to the hypoxic situation is the hypoxia‐inducible factor‐1 (HIF‐1). The activity of HIF‐1 is determined by the accumulation of its α subunit which is regulated, in part, by oxidative stress (ROS) and nitric oxide (NO), both of them highly dependent on PARP‐1. Besides, HIF‐1α can be induced by iron chelators such as deferoxamine (DFO). In this sense, the therapeutical use of DFO to strengthen the post‐hypoxic response has recently been proposed. Taking into account the increasing interest and potential clinical applications of PARP inhibition and DFO treatment, we have evaluated the impact of PARP‐1 on HIF‐1α accumulation induced by treatment with DFO. Our results show that, in DFO treated cells, PARP‐1 gene deletion or inhibition decreases HIF‐1α accumulation. This lower HIF‐1α stabilization is parallel to a decreased inducible NO synthase induction and NO production, a higher response of some antioxidant enzymes (particularly glutathione peroxidase and glutathione reductase) and a lower ROS level. Taken together, these results suggest that the absence of PARP‐1 modulates HIF‐1 accumulation by reducing both NO and oxidative stress. J. Cell. Biochem. 104: 2248–2260, 2008. © 2008 Wiley‐Liss, Inc.
Prostaglandin F2α involves heparan sulphate sugar chains and FGFRs to modulate osteoblast growth and differentiation
Authors: Sabbieti Maria Giovanna , Agas Dimitrios , Materazzi Stefano , Capacchietti Mariolina , Materazzi Giovanni , Hurley Marja M. , Menghi Giovanna , Marchetti Luigi 
Published: May 2008

AbstractThe present investigation extends our previous studies on PGF2α‐mediated signalling in osteoblast metabolism. In particular, the role of PGF2α as modulator of heparan sulphate proteoglycans (HSPGs), fibroblast growth factor 2 (FGF‐2) and fibroblast growth factor receptors (FGFRs) was evaluated. We hereby reported the novel observation that PGF2α was able to promote the formation of HSPGs/FGF‐2/FGFRs complexes. Moreover, our data suggested that PGF2α could induce new synthesis of heparan sulphate (HS) chains on osteoblasts by a mechanism involving a modulation of MAPK signalling and that HS is required for the regulation of FGF‐2 induced by PGF2α. Indeed, a proteolytic cleavage of HSPGs with heparinase III (Hep III) prior to PGF2α administration down‐regulated the basal expression of phospho‐p44/42, likely inhibiting FGFRs tyrosine kinase activity. Interestingly, MAPK signalling influenced syntheses and subcellular localization of FGF‐2, its specific receptor and HS. In addition, the proteolytic cleavage by Hep III and the MAPK kinase inhibition by PD‐98059 also revealed that PGF2α induced cell proliferation is dependent on HSPGs and FGF‐2 specific receptor, respectively. Of further relevance of this study, we demonstrated, by using a specific siRNA for FGFR1, that PGF2α modulates Runx2 expression by FGFR1 and HS. J. Cell. Physiol. 217: 48–59, 2008. © 2008 Wiley‐Liss, Inc.