gebhart/patrepeval huggingface dataset:
Role of Dendritic Cell Phenotype, Determinant Spreading, and Negative Costimulatory Blockade in Dendritic Cell-Based Melanoma Immunotherapy (2004)

MART-1(27-35)-peptide-pulsed immature dendritic cells (DCs) resulted in immunologic and clinical activity in a prior phase 1 trial. A phase 2 cohort expansion was initiated to further characterize the phenotype and cytokine milieu of the DC vaccines and their immunologic activity in vitro and to further examine a possible link between clinical activity and determinant spreading. In an open-label phase 2 trial, 10(7) autologous ex vivo generated DCs pulsed with the HLA-A*0201 immunodominant peptide MART-1(27-35) were administered to 10 subjects with stage II-IV melanoma. The experimental vaccines were administered intradermally in a biweekly schedule for a total of three injections, and blood for immunologic assays was obtained before each administration and at three time points after. DC vaccine preparations had wide intra- and interpatient variability in terms of cell surface markers and preferential cytokine milieu, but they did not correlate with the levels of antigen-specific T cells after vaccination. Of four patients with measurable disease, one had stable disease for 6 months and another has a continued complete response for over 2 years, which is confounded by receiving a closely sequenced CTLA4 blocking antibody. The DC vaccines induced determinant spreading in this subject, and CTLA4 blockade reactivated T cells with prior antigen exposure. The DC phenotype and cytokine profile do not correlate with the ability to induce antigen-specific T cells, while determinant spreading after DC immunization may be a marker of an efficient antitumor response. Sequential CTLA4 blockade may enhance the immune activity of DC-based immunotherapy.
Humoral regulation of monocytopoiesis during the early phase of an inflammatory reaction caused by particulate substances (1977)

An intraperitoneal injection of various particulate substances (i.e., silica, kaolin, and polystyrene latex) into Swiss mice can cause an inflammatory reaction in the peritoneal cavity with concomitant monocytosis in the peripheral blood. During the early phase of such a reaction, a factor causing increased monocytopoiesis (FIM) was demonstrated in the serum. The highest FIM activity was found in sera collected 18 hr after the injection of latex or kaolin, and 18-48 hr after the injection of silica; in the latter case, FIM could be demonstrated up to 144 hr. FIM could not be demonstrated in the serum of normal untreated mice or mice showing no or virtually no inflammatory reaction (i.e., after the intraperitoneal injection of titanium dioxide or saline). FIM also could not be demonstrated after the inflammatory reaction began to subside, i.e., from 48 hr onward after latex and 192 hr after silica injection. The intravenous injection of FIM in mice evoked specifically a monocytosis with a peak at 48 hr (2.5-3 times normal values), since the numbers of peripheral blood lymphocytes and granulocytes showed only small increases or none at all. FIM doubled the production of monocytes in the bone marrow during the first 24 hr owing to an almost twofold increase in the number of promonocytes and a decrease in the cell-cycle time (from 13.0 to 9.8 hr) of these cells. FIM was detectable in extracts of peritoneal cells of normal mice. After induction of an inflammatory reaction the activity of these extracts diminishes rapidly and is restored when the inflammatory reaction subsides. This course is the reverse of that of the FIM activity in the sera of these mice.
Purification and characterization of a β‐glucosidase from Trichoderma reesei (1987)

A beta-glucosidase has been purified from culture filtrates of the fungus Trichoderma reesei QM9414 grown on microcrystalline cellulose. The beta-glucosidase was purified using two successive DEAE-Sephadex anion-exchange chromatography steps, followed by SP-Sephadex cation-exchange chromatography and concanavalin-A--agarose chromatography. Evidence for homogeneity is provided by polyacrylamide disc gel electrophoretic patterns, which show a single protein band. Sedimentation equilibrium analysis yielded a molecular mass of 74.6 +/- 2.4 kDa. Sodium dodecyl sulfate/polyacrylamide gel electrophoresis yielded a single protein band with a molecular mass of 81.6 kDa. Thus, the enzyme appears to be a single, monomeric polypeptide. The beta-glucosidase is isoelectric at pH 8.5. The enzyme is rich in basic amino acids and contains few half-cystine and methionine residues. The purified beta-glucosidase contains less than 1% by weight of neutral carbohydrate. The beta-glucosidase catalyzes the hydrolysis of cellobiose, p-nitrophenyl beta-D-glucopyranoside and 4-methylumbelliferyl beta-D-glucopyranoside; the values of V/Km for each substrate were determined to be 2.3 X 10(4), 6.9 X 10(5) and 2.9 X 10(6) M-1 S-1 respectively. The enzyme is optimally active from pH 4.5 to 5.0 and is labile at higher hydrogen ion concentrations. The beta-glucosidase has an unusually high affinity for D-glucose (Ki = 700 microM). Comparison of inhibition constants for cello-oligosaccharides suggests that the substrate-binding region of the beta-glucosidase comprises multiple subsites.
Correction: Transgenerational Adaptation of Arabidopsis to Stress Requires DNA Methylation and the Function of Dicer-Like Proteins (2010)

Epigenetic states and certain environmental responses in mammals and seed plants can persist in the next sexual generation. These transgenerational effects have potential adaptative significance as well as medical and agronomic ramifications. Recent evidence suggests that some abiotic and biotic stress responses of plants are transgenerational. For example, viral infection of tobacco plants and exposure of Arabidopsis thaliana plants to UVC and flagellin can induce transgenerational increases in homologous recombination frequency (HRF). Here we show that exposure of Arabidopsis plants to stresses, including salt, UVC, cold, heat and flood, resulted in a higher HRF, increased global genome methylation, and higher tolerance to stress in the untreated progeny. This transgenerational effect did not, however, persist in successive generations. Treatment of the progeny of stressed plants with 5-azacytidine was shown to decrease global genomic methylation and enhance stress tolerance. Dicer-like (DCL) 2 and DCL3 encode Dicer activities important for small RNAdependent gene silencing. Stress-induced HRF and DNA methylation were impaired in dcl2 and dcl3 deficiency mutants, while in dcl2 mutants, only stress-induced stress tolerance was impaired. Our results are consistent with the hypothesis that stress-induced transgenerational responses in Arabidopsis depend on altered DNA methylation and smRNA silencing pathways.
Solvent-Sensitive Dyes to Report Protein Conformational Changes in Living Cells (2003)

Covalent attachment of solvent-sensitive fluorescent dyes to proteins is a powerful tool for studying protein conformational changes, ligand binding, or posttranslational modifications. We report here new merocyanine dyes that make possible the quantitation of such protein activities in individual living cells. The quantum yield of the new dyes is sharply dependent on solvent polarity or viscosity, enabling them to report changes in their protein environment. This is combined with other stringent requirements needed in a live cell imaging dye, including appropriate photophysical properties (excitation >590 nm, high fluorescence quantum yield, high extinction coefficient), good photostability, minimal aggregation in water, and excellent water solubility. The dyes were derivatized with iodoacetamide and succinimidyl ester side chains for site-selective covalent attachment to proteins. A novel biosensor of Cdc42 activation made with one of the new dyes showed a 3-fold increase in fluorescence intensity in response to GTP-binding by Cdc42. The dyes reported here should be useful in the preparation of live cell biosensors for a diverse range of protein activities.
Ghrelin Causes Hyperphagia and Obesity in Rats (2001)

Ghrelin, a circulating growth hormone-releasing peptide derived from the stomach, stimulates food intake. The lowest systemically effective orexigenic dose of ghrelin was investigated and the resulting plasma ghrelin concentration was compared with that during fasting. The lowest dose of ghrelin that produced a significant stimulation of feeding after intraperitoneal injection was 1 nmol. The plasma ghrelin concentration after intraperitoneal injection of 1 nmol of ghrelin (2.83 +/- 0.13 pmol/ml at 60 min postinjection) was not significantly different from that occurring after a 24-h fast (2.79 +/- 0.32 pmol/ml). After microinjection into defined hypothalamic sites, ghrelin (30 pmol) stimulated food intake most markedly in the arcuate nucleus (Arc) (0-1 h food intake, 427 +/- 43% of control; P < 0.001 vs. control, P < 0.01 vs. all other nuclei), which is potentially accessible to the circulation. After chronic systemic or intracerebroventricular (ICV) administration of ghrelin for 7 days, cumulative food intake was increased (intraperitoneal ghrelin 13.6 +/- 3.4 g greater than saline-treated, P < 0.01; ICV ghrelin 19.6 +/- 5.5 g greater than saline-treated, P < 0.05). This was associated with excess weight gain (intraperitoneal ghrelin 21.7 +/- 1.4 g vs. saline 10.6 +/- 1.9 g, P < 0.001; ICV ghrelin 15.3 +/- 4.3 g vs. saline 2.2 +/- 3.8 g, P < 0.05) and adiposity. These data provide evidence that ghrelin is important in long-term control of food intake and body weight and that circulating ghrelin at fasting concentrations may stimulate food intake.
Disorders of Sweating (2003)

The clinical spectrum of sweating disorders includes sudomotor excess and deficiency. Hyperhidrosis is characterized by sweating beyond that required to maintain a constant internal body temperature. Hypohidrosis and anhidrosis are distinguished by a reduced or absent ability to generate sweat for the purpose of evaporative heat dissipation. Whereas hyperhidrosis is usually benign, anhidrosis may predispose to hyperthermia. Either hyperhidrosis or anhidrosis may accompany a more serious underlying disorder. Correct diagnosis depends on determining the anatomical pattern of sweating and localizing the lesion within the autonomic nervous system. Sudomotor deficits may involve the frontal operculum, hypothalamus, brain stem, spinal cord, sympathetic chain ganglia, peripheral nerve, or eccrine sweat glands. Treatments for hyperhidrosis include topical aluminum chloride, oral anticholinergic agents, intradermal botulinum toxin for some localized syndromes, and thoracic ganglionic sympathotomy or sympathectomy for refractory palmar hyperhidrosis.
Allylic Amination via Decarboxylative C-N Bond Formation (2005)

This manuscript details the development of a palladium-catalyzed allylic amination that proceeds via decarboxylation of ­allylic carbamates. Both saturated and aromatic heterocycles undergo decarboxylative rearrangement in good yields. The mechanism of allylation of heteroaromatic amines involves the formation of π-allyl palladium complexes followed by decarboxylation of the ­carbamate. Finally, the heteroaromatic anion equivalent is allylated to provide allylic amines.
Interoperable query processing with multiple heterogeneous knowledge servers (1993)

Article Free Access Share on Interoperable query processing with multiple heterogeneous knowledge servers Authors: Louiqa Raschid Institute for Advanced Computer Studies, University of Maryland Institute for Advanced Computer Studies, University of MarylandView Profile , Yahui Chang Institute for Advanced Computer Studies, University of Maryland Institute for Advanced Computer Studies, University of MarylandView Profile , Bonnie J. Dorr Institute for Advanced Computer Studies, University of Maryland Institute for Advanced Computer Studies, University of MarylandView Profile Authors Info & Claims CIKM '93: Proceedings of the second international conference on Information and knowledge managementDecember 1993 Pages 461–470https://doi.org/10.1145/170088.170395Published:01 December 1993Publication History 1citation205DownloadsMetricsTotal Citations1Total Downloads205Last 12 Months4Last 6 weeks2 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF
Immunoreactive antigens recognized in serum samples from mice intranasally immunized with Porphyromonas gingivalis outer membrane vesicles (2014)

Outer membrane vesicles (OMVs) of the periodontopathic bacterium Porphyromonas gingivalis contain a wide range of virulence factors including lipopolysaccharide (LPS), fimbriae and gingipains. We have recently reported strong immunogenicity of OMVs using an intranasal vaccine mouse model. In the present study, we performed sub-immunoproteome analysis of OMV-immunized mouse serum samples from six different mice in order to identify immunodominant antigens. The combination of two-dimensional (2D) gel electrophoresis and mass spectrometry analysis identified OMV proteins of 53 spots on a 2D map, and it was notable that OMV proteins were largely distributed within a low pH range, in marked contrast to the ubiquitous distribution of outer membrane proteins. Western blot using the six serum samples after 2D electrophoresis revealed that all showed immunoreactivity to some diffuse signals at extremely low pH, which was similar to the distribution of immunoreactive signals when the A-LPS antibody was used. Mass spectrometry analysis also demonstrated that the signals corresponded to a wide range of virulence factors including A-LPS-modified proteins such as gingipains. Absorption of serum with LPS resulted in a dramatic reduction of immmunoreactivity. We conclude that LPS and A-LPS-modified proteins in OMVs carry immunodominant determinants and eventually elicit P. gingivalis-specific antibodies in mice.
Bionanoelectronics with 1D materials (2009)

Rapid progress in materials science and electrical engineering has led to the development of miniature electronic platforms that have devices and components as small as the main components of live cells. These developments open up an exciting possibility of building integrated systems in which electronic and biological components function side-by-side. However, to realize this vision of bionanoelectronics, researchers need to overcome a number of challenges ranging from materials incompatibility to drastically different operation modes. Fortunately, recent developments in biosensing, and device-level and tissue-level integration with nanomaterials have started to address these challenges.
The tubby-like proteins, a family with roles in neuronal development and function (2002)

The identification of a mutation at the tubby (Tub) locus, which causes obesity and neurosensory degeneration, led to the discovery of the tubby-like proteins (TULPs). Tub and the genes that encode three tubby-like proteins (TULP1- TULP3) form a novel, small gene family that plays an important role in maintenance and function of neuronal cells during development and post-differentiation. Although exploration of the molecular function of these genes is still in its infancy, recent biochemical studies have provided 'entry points' into pathways whose elucidation will further our understanding of TULP action. In addition, mRNA expression and translocation of the TUB protein have been shown to be regulated by thyroid hormone and by G-protein-coupled receptor signaling, respectively. These latter findings may help to link the cellular function of TUB to known mechanisms for energy homeostasis.
Noninvasive Neuromodulation with Ultrasound? A Continuum Mechanics Hypothesis (2010)

Deep brain stimulation and vagal nerve stimulation are therapeutically effective in treating some neurological diseases and psychiatric disorders. Optogenetic-based neurostimulation approaches are capable of activating individual synapses and yield the highest spatial control over brain circuit activity. Both electrical and light-based neurostimulation methods require intrusive procedures such as surgical implantation of electrodes or photon-emitting devices. Transcranial magnetic stimulation has also shown therapeutic effectiveness and represents a recent paradigm shift towards implementing less invasive brain stimulation methods. Magnetic-based stimulation, however, has a limited focusing capacity and lacks brain penetration power. Because ultrasound can be noninvasively transmitted through the skull to targeted deep brain circuits, it may offer alternative approaches to currently employed neuromodulation techniques. Encouraging this idea, literature spanning more than half a century indicates that ultrasound can modulate neuronal activity. In order to provide a comprehensive overview of potential mechanisms underlying the actions of ultrasound on neuronal excitability, here, I propose the continuum mechanics hypothesis of ultrasonic neuromodulation in which ultrasound produces effects on viscoelastic neurons and their surrounding fluid environments to alter membrane conductance. While further studies are required to test this hypothesis, experimental data indicate ultrasound represents a promising platform for developing future therapeutic neuromodulation approaches.
Efficient black silicon solar cell with a density-graded nanoporous surface: Optical properties, performance limitations, and design rules (2009)

We study optical effects and factors limiting performance of our confirmed 16.8% efficiency “black silicon” solar cells. The cells incorporate density-graded nanoporous surface layers made by a one-step nanoparticle-catalyzed etch and reflect less than 3% of the solar spectrum, with no conventional antireflection coating. The cells are limited by recombination in the nanoporous layer which decreases short-wavelength spectral response. The optimum density-graded layer depth is then a compromise between reflectance reduction and recombination loss. Finally, we propose universal design rules for high-efficiency solar cells based on density-graded surfaces.
Tear film structure and dry eye (1998)

La couche superieure du film lacrymal est formee a partir de secretions lipidiques de la glande de Meibomius. De structure complexe. cette couche lipidique comprend une phase polaire adjacente a la couche aqueuse mucinique et une phase non polaire, anterieure a la phase polaire. C'est de la phase polaire structuree, avec ses proprietes surfactantes, que depend l'integrite de la phase non polaire. Des anomalies dans la phase polaire, telles qu'une baisse des taux de phospholipides structurels, peuvent etre a l'origine d'affections. L'une d'entre elles presente les symptomes de la secheresse oculaire et resulte de la faiblesse des taux de phospholipides, phosphatidylethanolamine et sphingomyeline. Ces observations facilitent la mise en place d'une therapie de substitution lacrymale plus efficace.
High-T/sub c/ SQUIDs for low-field NMR and MRI of room temperature samples (1999)

We have constructed a high-T/sub c/ SQUID spectrometer to detect NMR signals from samples at room temperature in magnetic fields up to 3 mT. The multiloop SQUID magnetometer has a system noise of about 30 fT/Hz/sup 1/2/ at the relevant frequencies of 2 to 100 kHz. The magnetometer is operated in vacuum at 77 K, and is separated from the sample, which Is less than 1.5 mm away, by a sapphire window. In a magnetic field of 2 mT we can detect the proton spin echo at 86 kHz without signal averaging. This sensitivity enables us to obtain one-dimensional images. In addition, we present data on hyperpolarized /sup 129/Xe, which has an optically pumped polarization of several percent.
The effect of temperature on Aeromonas hydrophila infection in goldfish, Carassius auratus (2001)

The effect of temperature on Aeromonas hydrophila infection in goldfish, Carassius auratus, was studied using A. hydrophila strain A-3500. After comparison of four different infection methods, subcutaneous injection was selected. Different test temperatures were also tested and higher mortality was observed at 17 and 25°C during a 15-day period. SDS-PAGE analysis of outer membrane proteins prepared from A. hydrophila cultured at 10, 17, 25 and 32°C in formulated salt water showed different protein profiles. For example, a 40-kDa band was found only at 17 and 25°C. Phagocytic rates of A. hydrophila by goldfish macrophages at 10, 17, 25 and 32°C were 20.46 ± 2.07, 16.15 ± 1.39, 15.94 ± 1.85 and 22.22 ± 2.49%, respectively. The results indicated that temperature affects both the cell membrane structure of A. hydrophila and phagocytic activity of goldfish macrophages, resulting in varying fish mortality when infected at different temperatures.
Role of Brain Insulin Receptor in Control of Body Weight and Reproduction (2000)

Insulin receptors (IRs) and insulin signaling proteins are widely distributed throughout the central nervous system (CNS). To study the physiological role of insulin signaling in the brain, we created mice with a neuron-specific disruption of the IR gene (NIRKO mice). Inactivation of the IR had no impact on brain development or neuronal survival. However, female NIRKO mice showed increased food intake, and both male and female mice developed diet-sensitive obesity with increases in body fat and plasma leptin levels, mild insulin resistance, elevated plasma insulin levels, and hypertriglyceridemia. NIRKO mice also exhibited impaired spermatogenesis and ovarian follicle maturation because of hypothalamic dysregulation of luteinizing hormone. Thus, IR signaling in the CNS plays an important role in regulation of energy disposal, fuel metabolism, and reproduction.
Anti-neutrophil monoclonal antibody therapy inhibits the development of adjuvant arthritis (1997)

The aim of this study was to determine the contribution of neutrophils to adjuvant arthritis (AA) by in vivo depletion of peripheral blood neutrophils. Specific anti-neutrophil MoAb, RP3 (10 mg), or a control antibody was given twice daily on days 8-11 after injection of Mycobacterium tuberculosis in inbred male Sprague-Dawley rats. RP3 treatment inhibited the neutrophil leukocytosis associated with AA (3.3 +/- 0.6 x 10(3)/mm3 versus 21.2 +/- 6.9 x 10(3)/mm3; P<0.001). On day 12, control animals exhibited severe arthritis as assessed by articular index (AI) (9.2 +/- 1.3), increase in paw volume (149.3 +/- 10.6%), and synovial fluid (SF) cell count (5.3 +/- 0.5 x 10(5)). RP3 treatment significantly reduced AI (1 +/- 0.1; P<0.001), paw volume (103.6 +/- 5.8%; P<0.001) and SF cells (0.6 +/- 0.1 x 10(5); P<0.001) without affecting cutaneous DTH (treated 0.6 +/- 0.1 mm change in thickness, control 0.8 +/- 0.2 mm; NS). Additional experiments demonstrated that CD4+ cell depletion but not decomplementation inhibited AA development and synovial neutrophil accumulation. Depletion of circulating neutrophils prevented joint inflammation and synovial leucocyte influx in AA, suggesting a pivotal role for neutrophils in the effector phase of AA. Inhibition of neutrophil accumulation by CD4+ cell depletion and not by decomplementation suggests that neutrophil accumulation in AA is T cell-dependent.
Comparison of Conventional Anterior Surgery and Laparoscopic Surgery for Inguinal-Hernia Repair (1997)

Patients with inguinal hernias who undergo laparoscopic repair recover more rapidly and have fewer recurrences than those who undergo open surgical repair.