gebhart/patrepeval huggingface dataset:
Abnormal Pancreatic Alpha-Cell Function in Bacterial Infections (1973)

To determine the effect of infection on pancreatic alpha-cell function, plasma glucagon was measured in 22 nondiabetic patients hospitalized with bacterial infection. Glucagon averaged 409 ± 129 pg per milliliter(mean ± S.E.M.) in six patients with severe infection and 185 ± 31 pg per milliliter in 11 with moderate infection, values significantly greater than the mean fasting concentration of 75 ± 4 pg per milliliter found in healthy subjects. The elevated value in all groups returned to normal with recovery. Experimental pneumonococcal pneumonia in dogs was also associated with hyperglucagonemia. Hyperglucagonemia induced in alloxan-diabetic dogs by zinc glucagon given in addition to their usual insulin produced hyperglycemia, glycosuria and an increase in urine volume and urea excretion. Thus, in man and in dogs, infection appears to be accompanied by hyperglucagonemia. In diabetic dogs the glucagon elevation can cause worsening of the diabetic state. This effect may explain infection-induced deterioration frequently observed in diabetic patients.
Static corrections—a review, Part II (1993)

Refraction statics. One of the reasons for deriving and applying static corrections is to ensure structural integrity in the processed section. Static anomalies whose spatial wavelengths are longer than a spread length are not uncommon and if not corrected produce false structures in the seismic section (Figure 14). Refraction statics are effective for correcting these long spatial wavelength anomalies, and they are also effective against shorter spatial wavelength anomalies.
Improving foreground segmentations with probabilistic superpixel Markov random fields (2012)

We propose a novel post-processing framework to improve foreground segmentations with the use of Probabilistic Superpixel Markov Random Fields. First, we convert a given pixel-based segmentation into a probabilistic superpixel representation. Based on these probabilistic superpixels, a Markov random field exploits structural information and similarities to improve the segmentation. We evaluate our approach on all categories of the Change Detection 2012 dataset. Our approach improves all performance measures simultaneously for eight different basis foreground segmentation algorithms.
Identification of three amino acid residues in the B subunit of Shiga toxin and Shiga-like toxin type II that are essential for holotoxin activity (1991)

Shiga toxin of Shigella dysenteriae type I and Shiga-like toxins I and II (SLT-I and SLT-II, respectively) of enterohemorrhagic Escherichia coli are functionally similar protein cytotoxins. These toxin molecules have a bipartite molecular structure which consists of an enzymatically active A subunit that inhibits protein synthesis in eukaryotic cells and an oligomeric B subunit that binds to globotriaosylceramide glycolipid receptors on eukaryotic cells. Regionally directed chemical mutagenesis of the B subunit of SLT-II was used to identify amino acids in the B subunit that are critical for SLT-II holotoxin cytotoxic activity. Three noncytotoxic mutants were isolated, and their mutations were mapped. The substitutions of arginine with cysteine at codon 32, alanine with threonine at codon 42, and glycine with aspartic acid at codon 59 in the 70-amino-acid mature SLT-II B polypeptide resulted in the complete abolition of cytotoxicity. The analogous arginine, alanine, and glycine residues were conserved at codons 33, 43, and 60 in the 69-amino-acid mature B polypeptide of Shiga toxin. Comparable mutations induced in the B-subunit gene of Shiga toxin by oligonucleotide-directed, site-specific mutagenesis resulted in drastically decreased cytotoxicity (10(3)- to 10(6)-fold) as compared with that of wild-type Shiga toxin. The mutant SLT-II and Shiga toxin B subunits were characterized for stability, receptor binding, immunoreactivity, and ability to be assembled into holotoxin.
Cryoimmunotherapy: a Conference Report (1982)

Cryosurgery (in situ freezing) had been efficaciously employed for the treatment of malignant neoplasms. In situ freezing of a number of tissue has been demonstrated to constitute an antigenic stimulus (comparable to that obtained through the parenteral administration of antigen) capable of generating a specific immunologic response against autologous antigens of the frozen tissue, ergo, cryostimulation, However, if cryosurgery is to be employed not only for ablation of tumor, but also as a possible means of engendering an immunologic response to tumor (primary, as well as secondary, i.e., metastases), ergo, cryoimmunotherapy, several factors must be given careful consideration. It is with the further elucidation of these factors and the continuing endeavor to establish criteria for evaluating the candidacy of the cancer patient for cryoimmunotherapy and their postoperative responsiveness that have been reviewed, assessed and updated.
Shining Light on Neurons - Elucidation of Neuronal Functions by Photostimulation (2004)

Many neuronal functions can be elucidated by techniques that allow for a precise stimulation of defined regions of a neuron and its afferents. Photolytic release of neurotransmitters from 'caged' derivates in the vicinity of visualized neurons in living brain slices meets this request. This technique allows the study of the subcellular distribution and properties of functional native neurotransmitter receptors. These are prerequisites for a detailed analysis of the expression and spatial specificity of synaptic plasticity. Photostimulation can further be used to fast map the synaptic connectivity between nearby and, more importantly, distant cells in a neuronal network. Here we give a personal review of some of the technical aspects of photostimulation and recent findings, which illustrate the advantages of this technique.
Autoimmune Diabetes in NOD Mouse Is L3T4 T-Lymphocyte Dependent (1987)

Cultured BALB/c islets fail to function when transplanted into diabetic nonobese diabetic (NOD) mice; such grafted tissue is rapidly destroyed by disease recurrence. The cellular requirements for this graft damage are unclear. This study was designed to investigate the role of the L3T4+ T-lymphocyte subset in disease recurrence in the NOD mouse. L3T4+ T-lymphocytes were depleted by the in vivo administration of the L3T4-specific monoclonal antibody GK1.5. This treatment reduced the level of L3T4+ T-lymphocytes from an initial 43% of the peripheral blood lymphocytes to less than 4%. L3T4 levels remained at this low level for approximately 2 wk after withdrawal of GK1.5 treatment, after which the L3T4 levels slowly began to increase in the periphery. Grafting of cultured BALB/c islet tissue into GK1.5-treated diabetic NOD mice resulted in a rapid return to normoglycemia that persisted for 2-4 wk. The gradual return to the hyperglycemic condition roughly correlated with the reappearance of L3T4+ T-lymphocytes in the peripheral circulation. From these findings we conclude that the disease process in the NOD mouse is L3T4 T-lymphocyte dependent.
Emergence of Oseltamivir-Resistant Pandemic H1N1 Virus during Prophylaxis (2009)

To the Editor: Neuraminidase inhibitors (oseltamivir and zanamivir) are recommended for treatment of severe illness caused by the 2009 pandemic influenza A (H1N1) virus, and their use has also been advocated for postexposure prophylaxis in high-risk persons.1 We report the emergence of an oseltamivir-resistant virus in a familial cluster of infections with the 2009 H1N1 virus. In a 13-year-old boy with asthma, infection with the 2009 H1N1 virus developed and was confirmed by reverse-transcriptase polymerase-chain-reaction (RT-PCR) testing of a nasopharyngeal aspirate. Administration of oseltamivir (60 mg twice a day for 5 days for this boy who weighed 32 kg) was . . .
BioCAD: an information fusion platform for bio-network inference and analysis-0 (2011)

<b>Copyright information:</b>Taken from "BioCAD: an information fusion platform for bio-network inference and analysis"http://www.biomedcentral.com/1471-2105/8/S9/S2BMC Bioinformatics 2007;8(Suppl 9):S2-S2.Published online 27 Nov 2007PMCID:PMC2217660.of jobs are selected and executed in the Project Explorer Window (left)
Role of porins in outer membrane permeability (1987)

It is now well recognized that the outer membranes of gram-negative bacteria serve as molecular sieves which permit the passage of small hydrophilic molecules of sizes below a given cutoff, i.e., the exclusion limit (21, 27). This sieving property, which permits uptake of small substrate molecules but excludes potentially harmful enzymes and other large hydrophilic molecules, is due to a class of proteins called porins (21). Porins form trans-outermembrane, water-filled channels, the dimensions of which determine the exclusion limit. An indication of their importance in bacteria is the observaton that Spirochaeta aurantia, an organism which apparently lacks lipopolysaccharide in its outer membrane (also called its outer sheath) (A. Kropinski and E. P. Greenberg, personal communication), nevertheless contains a major porin protein (19) whose properties are closely related to those of, e.g., Escherichia coli (7). Porins have now been identified and characterized for 32 species of bacteria (R. E. W. Hancock, in M. Inouye, ed., Bacterial Outer Membranes as Model Systems, in
Cell survival and proliferation are modified by insulin-like growth factor 2 between days 9 and 10 of mouse gestation (2001)

The size of mammalian species involves the interaction of multiple genetic modifiers that control the timing and extent of growth mechanisms. Disruption of the paternal allele of the imprinted embryonic gene coding for insulin-like growth factor 2 (IGF2, Igf2(+m/-p)), results in viable mice that are 60% the weight of wild-type littermates. Differences in weight are first detected at embryonic day (E) 11, and the growth deficit is maintained throughout life. We report the mechanisms that account for this unusual phenotype. In order to quantify growth, we used novel methods to generate single cell suspensions of post-implantation mouse embryos. We were then able to quantify cell number, cell proliferation and cell death between E8.5 and E11.5 using flow cytometry. Determination of total embryo cell number also allowed us to time litters by a method other than by plugging. Wild-type and Igf2(+m/-p) embryos accumulated similar total cell numbers up to E9.25, but cell number began to diverge by around E9.5, with significant differences by E11 (75% of wild type). A relative increase in pyknotic nuclei, sub-GI cytometry counts and caspase activity, all indicative of cell death, occurred in Igf2(+m/-p) embryos at E9.25, reverting to wild-type levels by E9.75. This was followed at E9.75 by a significant reduction in the proportion of cells in S phase, quantified by S-phase cytometry counts and BrdU labelling. No significant differences in cell size were detected. We conclude that the majority of the cell number differences between wild-type and Igf2(+m/-p) mice can be accounted for by modification of cell survival and proliferation during the period (E9 to E10) of post-implantation development.
In vivo-like growth of human tumors in vitro. (1986)

We show that diverse human tumors obtained directly from surgery or biopsy can grow at high frequency in vitro for long periods of time and still maintain many of their in vivo properties. The in vivo properties maintained in vitro include three-dimensional growth; maintenance of tissue organization and structure, including changes associated with oncogenic transformation; retention of differentiated function; tumorigenicity; and the growth of multiple types of cells from a single tumor.
QUANTUM YIELD OF CHAPSO‐SOLUBILIZED RHODOPSIN and 3‐HYDROXY RETINAL CONTAINING BOVINE OPSIN* (1991)

The quantum yields of bleaching for two artificial pigments, bovine opsin combined with (3R)-3-hydroxy retinal or (3R,S)-3-methoxy retinal, were determined in comparison to the value for regenerated bovine rhodopsin. Regeneration of the visual pigments was performed by incubation of 3-[(3-Cholamidopropyl)-dimethylammonio]-2-hydroxy-1- propanesulfonate (CHAPSO)-solubilized opsin with the 11-cis isomers of retinal and the respective retinal derivatives. The extinction coefficients of the pigments in CHAPSO were determined to 35,000 M-1 cm-1 (native rhodopsin), 35,300 M-1 cm-1 (regenerated rhodopsin) and 34,500 M-1 cm-1 (3-OH retinal opsin). With respect to rhodopsin (lambda max: 500 nm), the pigments carrying the substituted chromophores exhibit blue shifted absorbance maxima (3-hydroxy and 3-methoxy retinal opsin: 488 nm). In parallel experiments under absolutely identical conditions we find related to the value of CHAPSO solubilized rhodopsin (identical to 1) a quantum efficiency of bleaching for the 3-hydroxy pigment of 1.2.
Oral Selective Estrogen Receptor Downregulators (SERDs), a Breakthrough Endocrine Therapy for Breast Cancer (2015)

Drugs that inhibit estrogen receptor alpha (ERα) or that block the production of estrogens remain frontline interventions in the treatment and management of breast cancer at all stages. However, resistance to endocrine therapies, especially in the setting of advanced disease, remains an impediment to durable clinical responses. Although the mechanisms underlying resistance to existing agents are complex, preclinical studies suggest that selective estrogen receptor downregulators (SERDs), molecules which eliminate ERα expression, may have particular utility in the treatment of breast cancers that have progressed on tamoxifen and/or aromatase inhibitors. The discovery and development of orally bioavailable SERDs provide the opportunity to evaluate the utility of eliminating ERα expression in advanced metastatic breast cancers.
Neuroprotective effects of sigma-1 receptor agonists against beta-amyloid-induced toxicity (2005)

Prolonged exposure of cultured cortical neurons to the residue 25-35 fragment of beta-amyloid protein, in the presence of dizocilpine, an antagonist of the N-methyl-D-aspartate receptor, and of 6,7-dinitroquinoxaline-2,3-dione, an antagonist of alpha-amino-3-hydroxy-5-methylisoxazole-4-propionate receptors, resulted in the expression of the proapoptotic protein Bax and neuronal death. Beta-amyloid protein(25-35)-induced neuronal death was substantially attenuated by the sigma1 receptor agonist 2-(4-morpholinethyl)1-phenylcyclohexanecarboxylate. The neuroprotective action of 2-(4-morpholinethyl)1-phenylcyclohexanecarboxylate was mimicked by the sigma1 ligand methyl (1S,2R)-2-[1-adamantyl(methyl)amino]methyl-1-phenylcyclopropanecarboxylate and was antagonized by the sigma1 receptor antagonist N,N-dipropyl-2-[4-methoxy-3-(2-phenylethoxy)-phenyl]-ethylamine monohydrochloride. These results suggest that sigma1 receptor agonists might function as neuroprotectant agents in Alzheimer's disease.
Intravenous immunoglobulin therapy of antiphospholipid syndrome (2000)

APS, an autoimmune disease whose main features are vascular thrombosis and pregnancy morbidity, is a good candidate for immunotherapy with IVIg that contains anti-idiotypes directed towards patients' pathogenic antiphospholipid antibodies. Future research should determine when to use anticoagulation, IVIg or both in the treatment of APS.
The gene for mouse epidermal filaggrin precursor. Its partial characterization, expression, and sequence of a repeating filaggrin unit. (1987)

Filaggrin is an important keratin intermediate filament-associated protein of terminally differentiated mammalian epidermis. Its aberrant expression has been implicated in a number of keratinizing disorders. We have isolated and sequenced a cDNA clone to mouse filaggrin, of 1.479 kilobase pairs, which represents less than 10% of the full-length mRNA estimated by Northern blot analysis to be 17 kilobases long. The cDNA clone delineates a 744-base pair repeat. This encodes a protein of 248 amino acids or 26,330 Da, which is almost identical to the known properties of mouse filaggrin in size, amino acid composition, and charge. Total mouse genomic DNA and the filaggrin gene isolated from a cosmid library were found to contain a super-stoichiometric repeat of the same size. These data support the hypothesis (Haydock, P.V., and Dale, B.A. (1986) J. Biol. Chem. 261, 12520-12525) that filaggrin is initially synthesized as a polyprotein precursor containing many tandem copies. However, our data suggest that the repeating filaggrin units of the precursor are not separated by "large linker" peptides as suggested by these authors. In situ hybridization was used to show that the filaggrin precursor mRNA is located precisely over the granular layer of the epidermis, indicating that expression of this gene is regulated at the transcriptional level as for the differentiation-specific keratin 1 protein. These probes will now permit detailed studies on the regulation of expression of the filaggrin gene.
Introduction (2014)

Abstract This introductory chapter sets out the book's focus, which is to explore how inquiry itself came to be the focus of attention, analysis, and controversy at the very outset of ancient investigations into the physical world. The aim is to determine what ancient investigators themselves were after, not to judge how close they came to our science but to assess their endeavours in their terms. The book shows that how ideals for inquiry were forged not just in Greece, but also in Mesopotamia, India, and China, each of them civilizations with quite a few ideas about how investigations should be pursued, and about their values and uses.
Acute Migraine Treatment With Oral Triptans and NSAIDs in a Managed Care Population (2008)

Migraine patients frequently change their treatment regimens in response to headache profiles. For patients with migraine associated nausea symptom, combination of therapy with triptan and NSAIDs appears to be less effective in relieving nausea than triptan monotherapy. Triptan montherapy remains a common and an effective migraine treatment strategy.
Approaches to automation for high‐throughput screening (1996)

Automation of high-throughput screening (HTS) assays can occur by one of two approaches. One involves design and implementation of systems employing robot arms for the tasks that comprise an assay. While this approach may offer excellent capacity, it usually takes time and large capital outlays to implement, debug, and maintain. Such systems also require specialists for operation and maintenance. The other approach is more stepwise in nature. It involves acquisition of automated workstations from different vendors and installing them in a concatenated fashion to comprise an assay protocol. This method is a more straightforward approach to establishing a turnkey HTS facility. As the fully automated approach is termed robotic, the stepwise method may be termed hubotic, insofar as it reflects the synergies obtainable by allowing people to provide the work flow between optimized laboratory workstations. Specific examples of these approaches will be described for different aspects of HTS, particularly for running complex cell-based assays. In addition, emerging robotic systems that are capable of ultrahigh-throughput screening capacities and utilize novel design principles will be discussed. We term these ubotic HTS approaches. © 1996 John Wiley & Sons, Inc.
Optic Nerve Head Extracellular Matrix in Primary Optic Atrophy and Experimental Glaucoma (1990)

Unilateral glaucomatous optic neuropathy and optic nerve transections were produced in cynomolgus monkeys, and the optic nerve heads were examined by light and electron microscopic immunohistochemistry. Glaucomatous nerve heads showed increased labeling for collagen type IV along the margins of beams in the lamina cribrosa, due to accumulation of basement membrane-like materials. We also noted material in the pores of the laminar beams that labeled with antibodies to collagen types I, III and IV, but not elastin. In transected eyes, increased type IV labeling of laminar beam margins resulted solely from redundant astrocyte basement membranes. Extracellular matrix deposition within laminar pores was not observed following optic nerve transection; hence this may be a selective response to elevated intraocular pressure. This response may alter the biochemical composition of the lamina cribrosa and its function in patients with elevated intraocular pressure.
A new sensorless permanent magnet synchronous motor algorithm based on algebraic method (2009)

In this paper, a new algorithm for position and speed estimation in permanent magnet synchronous motors is presented, which is based on the high frequency permanent motor model and on high frequency signal injection, uses an algebraic approach and is aimed to low speed range applications. High frequency injection allows, by means of simple mathematical relationships, the estimation of motor characteristic inductances. The machine inductances are characterized by a certain degree of position dependent magnetic saliency, as a function of the shaft position, in particular the mutual inductance value, which is proportional to the error between the true angle and an estimated angle value. The angle error is utilized as error signal, in a phase locked loop technique, in order to track the motor position and speed. Simulation and experimental results are presented which confirm the validity of the proposed solution.
The Effect of Music on Cognitive Performance: Insight From Neurobiological and Animal Studies (2005)

The past 50 years have seen numerous claims that music exposure enhances human cognitive performance. Critical evaluation of studies across a variety of contexts, however, reveals important methodological weaknesses. The current article argues that an interdisciplinary approach is required to advance this research. A case is made for the use of appropriate animal models to avoid many confounds associated with human music research. Although such research has validity limitations for humans, reductionist methodology enables a more controlled exploration of music's elementary effects. This article also explores candidate mechanisms for this putative effect. A review of neurobiological evidence from human and comparative animal studies confirms that musical stimuli modify autonomic and neurochemical arousal indices, and may also modify synaptic plasticity. It is proposed that understanding how music affects animals provides a valuable conjunct to human research and may be vital in uncovering how music might be used to enhance cognitive performance.
Apoptosis regulator Bcl-w is essential for spermatogenesis but appears otherwise redundant (1998)

Proteins of the Bcl-2 family are important regulators of apoptosis in many tissues of the embryo and adult. The recently isolated bcl-w gene encodes a pro-survival member of the Bcl-2 family, which is widely expressed. To explore its physiological role, we have inactivated the bcl-w gene in the mouse by homologous recombination. Mice that lack Bcl-w were viable, healthy, and normal in appearance. Most tissues exhibited typical histology, and hematopoiesis was unaffected, presumably due to redundant function with other pro-survival family members. Although female reproductive function was normal, the males were infertile. The testes developed normally, and the initial, prepubertal wave of spermatogenesis was largely unaffected. The seminiferous tubules of adult males, however, were disorganized, contained numerous apoptotic cells, and produced no mature sperm. Both Sertoli cells and germ cells of all types were reduced in number, the most mature germ cells being the most severely depleted. The bcl-w-/- mouse provides a unique model of failed spermatogenesis in the adult that may be relevant to some cases of human male sterility.