gebhart/patrepeval huggingface dataset:
Current status of vivax malaria among civilians in Korea (1998)

A result of national malaria surveillance in Korean civilians was described. Since a case of indigenous vivax malaria was detected in 1993, a total of 2,198 cases was confirmed by blood smear up to 1997. Of them, 1,548 cases were soldiers serving in the demilitarized zone (DMZ), while 650 cases were civilians. Number of civilian cases was 3 in 1994, 19 in 1995, 71 in 1996, and 557 in 1997. Of them, 239 were ex-soldiers who discharged after military service in the prevalent areas such as Paju, Yonchon, Kimpo, Kangwha, Tongduchon in Kyonggi-do and Chorwon in Kangwon-do while 308 patients were civilian residents in the prevalent areas. Seventy-two patients, living nationwide, had a history of visiting the prevalent areas during transmission season. Only 32 civilian patients denied any relation with the prevalent areas. As a whole, a half of the civilian cases was diagnosed when living in non-prevalent areas. Male patients in their twenties was the highest in number. Annual parasite index is steadily elevated in residents living in the prevalent areas. Monthly incidence showed an unimodal distribution, forming a peak in August. Ex-soldiers exhibited a delayed incubation ranging from 153 to 452 days (279 +/- 41 days). The time required for diagnosis was shortened from 23.6 days in 1995 to 13.7 days in 1997. Although the current epidemic of vivax malaria started as a border malaria, it seems highly probable that vivax malaria is established in the local areas and responsible for at least a part of transmission.
Essentials of Cardiac Imaging (1997)

Cardiac imaging systems radiography and fluoroscopy CT in cardiac imaging cardiac MRI nuclear cardiology and pulmonary radionucleotide imaging echocardiography cardiovascular hemodynamics pulmonary vascularity radiographic anatomy cardiovascular calcifications valvular heart disease pulmonary heart disease coronary heart disease pericardial disease myocardial disease.
Scaffolds for tissue fabrication (2004)

Tissue engineering is an interdisciplinary and multidisciplinary field. It has shown great promise in generating living alternatives for harvested tissues and organs for transplantation and reconstructive surgery. Materials and fabrication technologies are critically important for tissue engineering in designing temporary, artificial extracellular matrices (scaffolds), which support three-dimensional tissue formation. This review briefly introduces the concept of tissue engineering, and illustrates the relationship between tissue engineering and materials science and engineering. Important scaffold design principles are described. The most frequently used materials and fabrication technologies for scaffolds are reviewed. Some exciting new developments in scaffold materials and fabrication technologies are also discussed.
A Hydrophilic Azacyclooctyne for Cu-Free Click Chemistry (2008)

Biomolecules labeled with azides can be detected through Cu-free click chemistry with cyclooctyne probes, but their intrinsic hydrophobicity can compromise bioavailability. Here, we report the synthesis and evaluation of a novel azacyclooctyne, 6,7-dimethoxyazacyclooct-4-yne (DIMAC). Generated in nine steps from a glucose analogue, DIMAC reacted with azide-labeled proteins and cells similarly to cyclooctynes. However, its superior polarity and water solubility reduced nonspecific binding, thereby improving the sensitivity of azide detection.
Effect of the NADPH Oxidase Inhibitor Apocynin on Septic Lung Injury in Guinea Pigs (1994)

Reactive oxygen species (ROS) produced by NADPH oxidase activation in neutrophils play a major role in mediating sepsis-induced acute lung injury. To provide insight into whether the NADPH oxidase inhibitor apocynin might attenuate oxidant-induced lung injury, we examined the effect of apocynin on (1) sepsis-induced lung injury in guinea pigs, (2) ROS generation by LPS-stimulated neutrophils measured by chemiluminescence (CL), and (3) LPS-stimulated neutrophil-mediated human umbilical vein endothelial cell (HUVEC) injury assessed by 51Cr release. Sepsis-induced lung injury in guinea pigs was assessed by comparing 125I-labeled albumin concentrations in lung tissue and bronchoalveolar lavage (BAL) fluid relative to plasma (L/P and BAL/P), lung wet-to-dry weight ratios, and the number of neutrophils in BAL fluid. The lung wet-to-dry weight ratio, L/P, and the number of neutrophils in BAL fluid decreased after pretreatment and post-treatment with apocynin. BAL/P decreased upon pretreatment but not upon post-treatment with apocynin. Apocynin at concentrations from 10 to 100 micrograms/ml significantly reduced LPS-stimulated neutrophil CL and neutrophil-mediated HUVEC 51Cr release. We conclude that the NADPH oxidase inhibitor apocynin attenuates (1) sepsis-induced lung injury in guinea pigs, (2) neutrophil ROS generation measured by CL, and (3) neutrophil-mediated HUVEC injury assessed by 51Cr release.
CRISPR RNAs trigger innate immune responses in human cells (2018)

Here, we report that CRISPR guide RNAs (gRNAs) with a 5'-triphosphate group (5'-ppp gRNAs) produced via in vitro transcription trigger RNA-sensing innate immune responses in human and murine cells, leading to cytotoxicity. 5'-ppp gRNAs in the cytosol are recognized by DDX58, which in turn activates type I interferon responses, causing up to ∼80% cell death. We show that the triphosphate group can be removed by a phosphatase in vitro and that the resulting 5'-hydroxyl gRNAs in complex with Cas9 or Cpf1 avoid innate immune responses and can achieve targeted mutagenesis at a frequency of 95% in primary human CD4<sup>+</sup> T cells. These results are in line with previous findings that chemically synthesized sgRNAs with a 5'-hydroxyl group are much more efficient than in vitro-transcribed (IVT) sgRNAs in human and other mammalian cells. The phosphatase treatment of IVT sgRNAs is a cost-effective method for making highly active sgRNAs, avoiding innate immune responses in human cells.
Optical networks for local loop applications (1989)

Some of the options for optical technology within the local loop environment are examined. In particular, passive shared access networks have been considered in some detail. These networks show great promise for delivering existing telephone services to small to medium business customers (4-30 lines) economically by the early 1990s. Extending fiber to the home will also be possible by virtue of a similar passive network infrastructure for customers requiring new broadband services beyond the single telephone line. For one-line plain old telephone service (POTS) customers, an intermediate approach of terminating the fiber network at the final network distribution point, with copper retained for the final leg, may be used prior to the provision of broadband services. A key feature of the passive optical network architecture is the use of wavelength-division multiplexing (WDM) as an upgrade strategy, allowing graceful upgrading from telephone services to multichannel high-definition television (HDTV) on gigabit/second bearers and full two-way switched broadband services employing wavelength routing across the network.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
User modeling in UC, the UNIX consultant (1986)

UC is a natural language computer consultant system for the UNIX operating system. The user model in UC encodes the user's knowledge state and allows UC to tailor its responses to the user. The model encodes apriori knowledge in a double stereotype system that is extremely efficient. Models of individual users are updated dynamically and build on top of the user's stereotype. The model deals with uncertainty in apriori information and attempts to deduce the user's level during the course of a session.
Determination of blood glucose using 4-amino phenazone as oxygen acceptor. (1969)

In microtitrations constant volumes of fluids are picked up and delivered by specially constructed and calibrated metallic microdiluters.According to the Microtiter Instruction Manual of the Cooke Engineering Company (1965), their high titanium, stainless steel, new-pattern microdiluters with a precisely slotted tip are not supposed to rust, but in the hot and humid climate of Calcutta they do rust, though they con- tinue to deliver fluids properly when tested on the special 'go-no-go' delivery tester supplied by the manufacturer.Many of the rust particles become detached from the microdiluters during their agitation in the wells of the dilution plates and produce, both with human group 0 and goose erythrocytes, an atypical settling pattern at the bottom of disposable plastic V plates.There is a small central button of erythrocytes, showing as well as the peripheral deposit, small black particles rimmed by a clear space.The peripheral concentric erythrocyte deposit closely simulated the typical haemagglutination pattern.Microscopically many black rust particles of various sizes and shapes were observed among discrete erythrocytes, and we have called this atypical pattern pseudohaemagglutination.The rusted particles did not alter the typical agglutination pattern or the titre of some of the haemagglutininpositive enteroviruses and arboviruses.They, however, produced pseudo-haemagglutination with the haemagglutinin-negative enteroviruses as well as the uninoculated tissue culture maintenance medium.It appears that the rusted microdiluters, if used for diluting the antisera or the haemagglutinin-positive antigens, are not likely to modify the positive haemagglutination patterns.But one has to be cautious in using the rusted microdiluters for screening antigens as the detached rust may of itself produce a false-positive haemagglutination pattern.
Neutralization of interleukin‐1β modifies the inflammatory response and improves histological and cognitive outcome following traumatic brain injury in mice (2009)

Interleukin-1beta (IL-1beta) may play a central role in the inflammatory response following traumatic brain injury (TBI). We subjected 91 mice to controlled cortical impact (CCI) brain injury or sham injury. Beginning 5 min post-injury, the IL-1beta neutralizing antibody IgG2a/k (1.5 microg/mL) or control antibody was infused at a rate of 0.25 microL/h into the contralateral ventricle for up to 14 days using osmotic minipumps. Neutrophil and T-cell infiltration and microglial activation was evaluated at days 1-7 post-injury. Cognition was assessed using Morris water maze, and motor function using rotarod and cylinder tests. Lesion volume and hemispheric tissue loss were evaluated at 18 days post-injury. Using this treatment strategy, cortical and hippocampal tissue levels of IgG2a/k reached 50 ng/mL, sufficient to effectively inhibit IL-1betain vitro. IL-1beta neutralization attenuated the CCI-induced cortical and hippocampal microglial activation (P < 0.05 at post-injury days 3 and 7), and cortical infiltration of neutrophils (P < 0.05 at post-injury day 7). There was only a minimal cortical infiltration of activated T-cells, attenuated by IL-1beta neutralization (P < 0.05 at post-injury day 7). CCI induced a significant deficit in neurological motor and cognitive function, and caused a loss of hemispheric tissue (P < 0.05). In brain-injured animals, IL-1beta neutralizing treatment resulted in reduced lesion volume, hemispheric tissue loss and attenuated cognitive deficits (P < 0.05) without influencing neurological motor function. Our results indicate that IL-1beta is a central component in the post-injury inflammatory response that, in view of the observed positive neuroprotective and cognitive effects, may be a suitable pharmacological target for the treatment of TBI.
Processing of beta-amyloid precursor protein in microglia and astrocytes favors an internal localization over constitutive secretion (1991)

Microglial cells and astrocytes are closely associated with nearly all compact deposits of the amyloid beta-protein found in the senile plaques characteristic of Alzheimer's disease and trisomy 21. The biosynthesis and metabolic fate of the beta-amyloid precursor protein (beta APP) in astrocytes has not been characterized, and its identification in microglia has not been described. Here, we report the expression of beta APP by astrocytes and microglia in primary cultures of cerebral cortex from newborn rats. Using metabolic labeling followed by immunoprecipitation, we show that both astrocytes and microglia express substantial amounts of the major isoforms of beta APP. This is confirmed by PCR-mediated amplification of the corresponding mRNAs, showing that all three major transcripts (beta APP695, beta APP751, and beta APP770) are present in relatively equal amounts. Despite rapid turnover of the precursor, astrocytes and microglia show a reduced production of soluble fragments of beta APP compared to cells transfected with beta APP cDNAs. The relative amount of soluble beta APP molecules generated is both cell type and isoform specific. Immunocytochemistry reveals that full-length beta APP is located in internal membranous vesicles, with only very little insertion at the cell surface. The latter data are in agreement with the reduced ability of microglia and astrocytes to cleave the beta APP into soluble derivatives. Our findings indicate that both astrocytes and microglia strongly express all three major forms of beta APP but apparently process these molecules by an alternative pathway that generates very small amounts of soluble beta APP. The immunocytochemical localization and the biochemical data lead to the suggestion that beta APP may not function principally as a cell surface or secreted protein in vivo but may have an important intracellular function.
The Human Plasma Proteome (2002)

The human plasma proteome holds the promise of a revolution in disease diagnosis and therapeutic monitoring provided that major challenges in proteomics and related disciplines can be addressed. Plasma is not only the primary clinical specimen but also represents the largest and deepest version of the human proteome present in any sample: in addition to the classical "plasma proteins," it contains all tissue proteins (as leakage markers) plus very numerous distinct immunoglobulin sequences, and it has an extraordinary dynamic range in that more than 10 orders of magnitude in concentration separate albumin and the rarest proteins now measured clinically. Although the restricted dynamic range of conventional proteomic technology (two-dimensional gels and mass spectrometry) has limited its contribution to the list of 289 proteins (tabulated here) that have been reported in plasma to date, very recent advances in multidimensional survey techniques promise at least double this number in the near future. Abundant scientific evidence, from proteomics and other disciplines, suggests that among these are proteins whose abundances and structures change in ways indicative of many, if not most, human diseases. Nevertheless, only a handful of proteins are currently used in routine clinical diagnosis, and the rate of introduction of new protein tests approved by the United States Food and Drug Administration (FDA) has paradoxically declined over the last decade to less than one new protein diagnostic marker per year. We speculate on the reasons behind this large discrepancy between the expectations arising from proteomics and the realities of clinical diagnostics and suggest approaches by which protein-disease associations may be more effectively translated into diagnostic tools in the future.
Amino acid substitutions enhancing thermostability of Bacillus polymyxa β-glucosidase A (1996)

Mutations enhancing the thermostability of beta-glucosidase A of Bacillus polymyxa, a family 1 glycosyl hydrolase, have been obtained after hydroxylamine mutagenesis of a plasmid containing the bglA gene, transformation of Escherichia coli with the mutagenized plasmid, and identification of transformant colonies that showed beta-glucosidase activity after a thermal treatment that inactivated the wild-type enzyme. Two additive mutations have been characterized that cause replacement of glutamate at position 96 by lysine and of methionine at position 416 by isoleucine respectively. The thermoresistant mutant enzymes showed increased resistance to other denaturing agents, such as pH and urea, while their kinetic parameters did not change. CD spectra indicated that the E96K replacement caused an increase in alpha-helix content. The observed effect of the M416I mutation is consistent with the lower content of cysteine and methionine found in family 1 enzymes of thermophilic species compared with similar ones from mesophilic organisms.
Purification and Characterization of a Naturally Occurring Vascular Endothelial Growth Factor · Placenta Growth Factor Heterodimer (1995)

Vascular endothelial growth factor (VEGF) is a potent and selective mitogen for endothelial cells that is angiogenic in vivo and induced by hypoxia. A homologous protein, placenta growth factor (PlGF), is also reported to be mitogenic for endothelial cells in culture. The rat GS-9L glioma cell line produces not only VEGF homodimers but also PlGF homodimers and a novel heterodimer composed of VEGF and PlGF subunits. All three dimeric forms were purified to apparent homogeneity, and their structures and mitogenic activities were compared. VEGF.PlGF heterodimers are vascular endothelial cell mitogens nearly as potent as VEGF homodimers. Therefore, some of the biological activities attributed to VEGF homodimers might be mediated by VEGF.PlGF heterodimers. In contrast, pure PlGF homodimers are mitogenic for endothelial cells only at high, possibly non-physiologic concentrations; thus the biological relevance of their mitogenic activity for these cells is not obvious. However, the existence of not only homodimers but also heterodimers clearly extends the similarity between the VEGF/PlGF and the homologous platelet-derived growth factor systems.
Evaluation of a UDP-Glucose-4-Epimeraseless Mutant of Salmonella typhi as a Live Oral Vaccine (1977)

A mutant (Ty21a) of Salmonella typhi, which lacks the enzyme uridine 5'-diphosphate-glucose-4-epimerase, was evaluated in volunteers for use as a live attenuated oral typhoid vaccine. Five to eight doses of vaccine (containing 3-10(10) viable organisms per dose) were given to 155 men without significant side effects. The rate of excretion of the vaccine strain in stools was low, and the majority of isolations occurred on day 1 after vaccination. Revertants able to fement galactose were not found in any of 958 stool isolates tested. The mutant, strain Ty21a, grown in brain-heart infusion broth (BHIB) with 0.1% galactose, produces more O side chain than the same vaccine strain cultivated without galactose. Volunteers vaccinated with strain Ty21a grown in galactose and then challenged with 10(5) virulen S. typhi were significantly protected from disease and also had decreased stool carriage of S. typhi as compared with controls. Strain Ty21a grown without galactose did not provide vaccinees significant protection nor decrease fecal excretion of S. typhi as compared with controls. Strain Ty21a, when grown in BHIB with 0.1% galactose, results in a safe, stable and protective oral vaccine that warrants further study in field trials.
Molded polyethylene glycol microstructures for capturing cells within microfluidic channels (2004)

The ability to control the deposition and location of adherent and non-adherent cells within microfluidic devices is beneficial for the development of micro-scale bioanalytical tools and high-throughput screening systems. Here, we introduce a simple technique to fabricate poly(ethylene glycol)(PEG) microstructures within microfluidic channels that can be used to dock cells within pre-defined locations. Microstructures of various shapes were used to capture and shear-protect cells despite medium flow in the channel. Using this approach, PEG microwells were fabricated either with exposed or non-exposed substrates. Proteins and cells adhered within microwells with exposed substrates, while non-exposed substrates prevented protein and cell adhesion (although the cells were captured inside the features). Furthermore, immobilized cells remained viable and were stained for cell surface receptors by sequential flow of antibodies and secondary fluorescent probes. With its unique strengths in utility and control, this approach is potentially beneficial for the development of cell-based analytical devices and microreactors that enable the capture and real-time analysis of cells within microchannels, irrespective of cell anchorage properties.
Selection of tumor antigens as targets for immune attack using immunohistochemistry: II. Blood group‐related antigens (1997)

Blood group-related antigens have been attractive targets for immunotherapy of cancer since their initial identification as cancer-related antigens.However, available information on the relative expression of most of these antigens on human malignant and normal tissues has been insufficient for selecting optimal antigens and tumors for immune attack.In this study, the distribution of the blood group-related antigens TF, Tn, sTn, Le a , sialyl Le a , Le b , Le x , sialyl Le x , polyfucosyl Le x and Le y on 13 types of cancer and 16 normal tissues was compared.Our results show that sTn is strongly expressed on cancers of breast, colon, stomach, ovary, prostate and uterus; Tn on prostate cancer; TF on cancers of breast, colon, ovary, prostate and uterus; Le y on the cancers of colon, lung, pancreas and ovary; Le a and Le x on gastric cancer; and sialyl Le a and sialyl Le x on colon cancer.The complete absence of these antigens on cancers of neuroectodermal or mesodermal origin including melanoma, sarcoma, neuroblastoma and B cell lymphoma is as striking as their widespread presence on tumors of epithelial origin.Normal tissues were also tested.Tn and Le b were only detected on gastric and ovarian epithelia; sTn on Leydig cells of testis in addition to gastric and ovarian epithelia; Le x and sialyl Le x on polymorphonuclear leukocytes; and TF, Le a , sialyl Le a , Le x , sialyl Le x , polyfucosyl Le x and Le y on epithelia from a variety of tissues.
The expression of 70 apoptosis genes in relation to lineage, genetic subtype, cellular drug resistance, and outcome in childhood acute lymphoblastic leukemia (2005)

Childhood acute lymphoblastic leukemia (ALL) consists of various subtypes that respond differently to cytotoxic drugs and therefore have a markedly different clinical outcome. We used microarrays to investigate, in 190 children with ALL at initial diagnosis, whether 70 key apoptosis genes were differentially expressed between leukemic subgroups defined by lineage, genetic subtype, in vitro drug resistance, and clinical outcome. The expression of 44 of 70 genes was significantly different in T-versus B-lineage ALL, 22 genes differed in hyperdiploid versus nonhyperdiploid, 16 in TEL-AML1-positive versus-negative, and 13 in E2A-rearranged versus germ-line B-lineage ALL. Expression of MCL1 and DAPK1 was significantly associated with prednisolone sensitivity, whereas BCL2L13, HRK, and TNF were related to L-asparaginase resistance. BCL2L13 overexpression was also associated with unfavorable clinical outcome (P < .001). Multivariate analysis including known risk factors revealed that BCL2L13 expression was an independent prognostic factor (P = .011). The same trend was observed in a validation group of 92 children with ALL treated on a different protocol at St Jude (P = .051). In conclusion, ALL subtypes have a unique expression pattern of apoptosis genes and our data suggest that selective genes are linked to cellular drug resistance and prognosis in childhood B-lineage ALL.