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At least 1,441 records · Page 80Linked to original sources
PubMed2004

Relationship between intracranial pressure and other clinical variables in patients with aneurysmal subarachnoid hemorrhage.

OBJECT: Increased intracranial pressure (ICP) is well known to affect adversely patients with head injury. In contrast, the variables associated with ICP following aneurysmal subarachnoid hemorrhage (SAH) and their impact on outcome have been less intensely studied. METHODS: In this retrospective study the authors reviewed a prospective observational database cataloging the treatment details in 433 patients with SAH who had undergone surgical occlusion of an aneurysm as well as ICP monitoring. All 433 patients underwent postoperative ICP monitoring, whereas only 146 (33.7%) underwent both pre- and postoperative ICP monitoring. The mean maximal ICP was 24.9 +/- 17.3 mm Hg (mean +/- standard deviation). During their hospital stay, 234 patients (54%) had elevated ICP (> 20 mm Hg), including 136 of those (48.7%) with a good clinical grade (Hunt and Hess Grades I-III) and 98 (63.6%) of the 154 patients with a poor grade (Hunt and Hess Grades IV and V) on admission. An increased mean maximal ICP was associated with several admission variables: worse Hunt and Hess clinical grade (p < 0.0001), a lower Glasgow Coma Scale (GSC) motor score (p < 0.0001); worse SAH grade based on results of computerized tomography studies (p < 0.0001); intracerebral hemorrhage (p = 0.024); severity of intraventricular hemorrhage (p < 0.0001); and rebleeding (p = 0.0048). Both intraoperative cerebral swelling (p = 0.0017) and postoperative GCS score (p < 0.0001) were significantly associated with a raised ICP. Variables such as patient age, aneurysm size, symptomatic vasospasm, intraoperative aneurysm rupture, and secondary cerebral insults such as hypoxia were not associated with raised ICP. Increased ICP adversely affected outcome: 71.9% of patients with normal ICP demonstrated favorable 6-month outcomes postoperatively, whereas 63.5% of patients with ICP between 20 and 50 mm Hg and 33.3% with ICP greater than 50 mm Hg demonstrated favorable outcomes. Among 21 patients whose raised ICP did not respond to mannitol therapy, all experienced a poor outcome and 95.2% died. Among 145 patients whose elevated ICP responded to mannitol, 66.9% had a favorable outcome and only 20.7% were dead 6 months after surgery (p < 0.0001). According to results of multivariate analysis, however, ICP was not an independent outcome predictor (odds ratio 1.26, 95% confidence interval 0.28-5.68). CONCLUSIONS: Increased ICP is common after SAH, even in patients with a good clinical grade. Elevated ICP post-SAH is associated with a worse patient outcome, particularly if ICP does not respond to treatment. This association, however, may depend more on the overall severity of the SAH than on ICP alone.

Adult↗
PubMed1987

[Checklist of mosquitoes (Culicidae) in Korea]

A systematic mosquito taxonomic study in Korea was established by Lee in 1971. Since then, many species have been recorded as new to Korea. However, much of this taxonomic information has been distributed in a number of scientific publications. This work attempts to combine this information into a single document, as well as to synthesize revised taxonomic synonyms of species occurring in Korea. Four species, Culex vorax, Culex kangi, Aedes kobayashii and Culiseta kanayamensis listed in our previous paper, are synonyms of Culex halifaxii, Culex jacksoni, Aedes alektorovi and Culiseta bergrothi, respectively. Culex annulus is a misidentified species of Culex pseudovishnui. The subspecies Culex pipiens quinquefasciatus and subgenus Mansonia (Coquillettidia) were treated as full species and genus respectively in a catalog of the mosquitoes of the world. However, not all current authors agree to those specific and generic treatment. Based on available publications the total number of mosquito species recorded in Korea is now 52 representing 9 genera. Forty-five of these 52 are confirmed species with preserved specimen representation. As collection of specimen continues, there is a possibility that representative of 7 unconfirmed species will be found. I hope this paper will provide useful information for entomology workers who are interested in mosquito taxonomy in Korea.

Journal Article↗
PubMed2005

Skin lesions on North Atlantic right whales: categories, prevalence and change in occurrence in the 1990s.

North Atlantic right whales Eubalaena glacialis experienced decreased reproduction and body condition in the 1990s, causing concern about the overall health of this critically endangered population. Images from a detailed photo-identification catalog of right whales were analyzed for the presence of skin lesions. Lesions were categorized as white lesions or blister lesions and each of those categories were further divided based on lesion morphology and location. Of 439 whales photo-analyzed between 1980 and 2002, white lesions were detected on 227 ind. (51.7%) and blister lesions were found on 76 ind. (17.3%). The majority of white lesions (72.8%) were detected in the Bay of Fundy where their prevalence increased dramatically during the 1990s (peaking at 40 and 41% of all identified whales in 1997 and 1999, respectively). A correlation between whale density and white lesions in the Bay of Fundy suggested that this lesion type may have been the result of a contagious agent, though the data on mother/calf pairs did not indicate transmission from mother to calf. Blister lesions appeared at low levels throughout the population over the study period. Neither lesion category was more prevalent on males or females, nor were there any differences between adults and juveniles. One white lesion type appeared exclusively on whales that had been entangled, and whose subsequent survival was in most cases questionable. This is the first detailed analysis of skin lesions in this species. Only 1 tissue sample has been previously obtained from a lesion, and thus the histology and etiology of these lesions remain unknown. Further work is needed to explore the role of disease and environmental variables in lesion prevalence.

Animals↗
PubMed2026

Genomic Identification and Comparative Characterization of Chemosensory Genes in Two Walnut Pests.

Conogethes punctiferalis (generalist) and Atrijuglans aristata (specialist) are important pests of walnut fruits. Chemosensory genes play critical roles in host location and mating, making them promising candidates for pest management research. However, genome-wide identification of these gene families has not yet been performed for either species, and cross-species comparisons are often confounded by differences in annotation quality and methodology. Here, we employed a unified pipeline for genome annotation and gene family identification to systematically characterize the odorant receptor (OR), gustatory receptor (GR), odorant-binding protein (OBP), and chemosensory protein (CSP) genes of both species and further analyzed their physicochemical properties, chromosomal distribution, and phylogeny. Genome annotation identified 13,236 and 14,083 protein-coding genes in C. punctiferalis and A. aristata, respectively, with BUSCO completeness of 94.6% and 94.5%. We identified 121 candidate chemosensory genes in C. punctiferalis (46 ORs, 23 GRs, 32 OBPs, and 20 CSPs) and 137 in A. aristata (65 ORs, 26 GRs, 28 OBPs, and 18 CSPs). Notably, A. aristata possesses more OR genes (65) than C. punctiferalis (46). Both species possess a single conserved ORco, with three and four pheromone receptor (PR) genes in C. punctiferalis and A. aristata, respectively. Chemosensory genes were either dispersed or tandemly arrayed on chromosomes, with each family clustering into conserved functional branches. This study provides a reliable foundation for comparative chemosensory evolution studies and a catalog of candidate genes for future functional validation.

Atrijuglans aristata↗
PubMed2023

Common Genetic Factors and Pathways in Alzheimer's Disease and Ischemic Stroke: Evidences from GWAS.

Alzheimer's disease (AD) and ischemic stroke (IS) are common neurological disorders, and the comorbidity of these two brain diseases is often seen. Although AD and IS were regarded as two distinct disease entities, in terms of different etiologies and clinical presentation, recent genome-wide association studies (GWASs) revealed that there were common risk genes between AD and IS, indicating common molecular pathways and their common pathophysiology. In this review, we summarize AD and IS risk single nucleotide polymorphisms (SNPs) and their representative genes from the GWAS Catalog database, and find thirteen common risk genes, but no common risk SNPs. Furthermore, the common molecular pathways associated with these risk gene products are summarized from the GeneCards database and clustered into inflammation and immunity, G protein-coupled receptor, and signal transduction. At least seven of these thirteen genes can be regulated by 23 microRNAs identified from the TargetScan database. Taken together, the imbalance of these molecular pathways may give rise to these two common brain disorders. This review sheds light on the pathogenesis of comorbidity of AD and IS, and provides molecular targets for disease prevention, manipulation, and brain health maintenance.

Humans↗
PubMed2004

The Social Transition in the North: collection and data access protocols.

OBJECTIVE: These protocols were designed to provide access to the Social Transition in the North (STN) collection and data set. METHOD: Staff at the (UAA) Institute for Circumpolar Health Studies (ICHS) reviewed, organized, inventoried, and cataloged the STN collection. RESULTS: Most of the materials in the collection are available from the UAA Archives and Manuscripts Department, Consortium Library. Documents and data containing sensitive information are maintained by ICHS to assure confidentiality of research participants. CONCLUSION: These access protocols allow researchers to obtain access to this valuable data set consistent with US research policy while protecting the integrity of the data and the confidentiality of the participants.

Alaska↗
PubMed1990

Diffusion of associate degree nursing programs among U.S. community colleges.

Examinations of the adoption and diffusion processes relative to innovations have focused on a variety of factors including the characteristics of the environment, the adoptive unit, and the innovation itself. This study explored the relationship between environmental factors, organizational characteristics, and the spread of 2-year associate degree nursing (ADN) programs among community colleges in the U.S. Data were secured from census materials, educational directories, community college catalogs, various other documents, and interviews with community college representatives. Results indicated that such factors as general population heterogeneity, change and wealth, and various measures of the need for nurses and nursing education were not useful predictors of the prevalence of ADN programs among the population of community colleges in a state. Two-year colleges that operated ADN programs were larger, wealthier, offered more occupational programs, and were more likely to be publicly controlled than were community colleges that had not adopted the ADN program feature. Analysis of case materials suggested that at the community level, hospitals and hospital-sponsored nursing schools were important factors in the community college's decision to adopt or reject the ADN program feature.

Communication↗
PubMedDate not supplied

Lenz syndrome in two sisters: clinicopathologic correlations of the ocular anomalies.

BACKGROUND: The Lenz syndrome (Mendelian inheritance in Man catalog number 309,800) is a presumed X-linked recessive disorder. Major diagnostic criteria include ocular, skeletal, and urogenital manifestations. We describe two sisters and the two sons of one of them with Lenz syndrome. The eye from one boy was removed because of pain and total loss of vision, allowing histopathologic documentation of the ocular malformations. METHODS: Clinicopathologic case report. RESULTS: Two sisters in this family displayed several of the major diagnostic criteria of the Lenz syndrome. The stunted growth of the eye, and the ocular and non-ocular anomalies defines the microphthalmos as monogenic, complex, and colobomatous. CONCLUSION: The pattern of inheritance of Lenz syndrome is best explained by X-linked dominant transmission. Future reports of familial cases with an excess of affected females are needed to confirm this hypothesis.

Abnormalities, Multiple↗
PubMed2004

IL-10 released by concomitant TLR2 stimulation blocks the induction of a subset of Th1 cytokines that are specifically induced by TLR4 or TLR3 in human dendritic cells.

Recognition of microbial products through TLRs triggers the expression of several cytokines that regulate innate and adaptive immunity. Signaling by various TLRs is not equivalent and leads to differential gene induction. This study analyzed the responses of human dendritic cells (DCs) and PBMCs stimulated with agonists of TLR2, TLR3, TLR4, TLR5, and TLR7, first individually and then in combination. Several cytokines were equally induced by all TLR agonists, but four genes, IFN-beta, IFN-gamma-inducible protein 10 (IP-10), IL-12p35, and IL-15, showed a very restricted pattern of induction. Thus, each TLR appears to possess a distinctive ability to activate DCs or PBMCs, suggesting that TLR-mediated responses cannot be simply cataloged as resembling either TLR2 (MyD88 dependent) or TLR4 (MyD88 independent) and that other signaling modalities may exist. The analysis of DC and PBMC activation by combinations of TLR agonists revealed that TLR2 agonists are able to block the induction of IP-10, IL-12p35, and IFN-gamma, but not IL-15 and IFN-beta, by TLR3 and TLR4. TLR2 stimulation led to rapid release of IL-10 that is responsible for inhibition of IP-10 and IL-12p35 induction. Cross-talk between different TLRs may modify the primary responses of TLR to their agonist, adding a further level of complexity to the regulation of innate immunity.

Autocrine Communication↗
PubMed2006

Cyclooxygenase-2 gene transcription in a macrophage model of inflammation.

Infections involving LPS-bearing, Gram-negative bacteria can lead to acute inflammation and septic shock. Cyclooxygenase-2 (COX-2), the target of nonsteroidal anti-inflammatory drugs and selective COX-2 inhibitors, is importantly involved in these responses. We examined the dynamics of COX-2 gene expression in RAW264.7 murine macrophages treated with LPS as a model for COX-2 gene expression during inflammation. We established, using Northern blotting, nuclear run-on assays, and RT-PCR, that COX-2 transcriptional activation continues for at least 12 h after LPS treatment and involves at least three phases. Previous studies with murine macrophages identified an NF-kappaB site, a C/EBP site, and a cAMP response element-1 (CRE-1) as cis-acting elements in the COX-2 promoter. We identified three additional functional elements including a second CRE (CRE-2), an AP-1 site, and an E-box that overlaps CRE-1. The E-box mediates transcriptional repression whereas the other cis-elements are activating. Using electrophoretic mobility supershift and chromatin immunoprecipitation assays, we cataloged binding to each functional cis element and found them occupied to varying extents and by different transcription factors during the 12 h following LPS treatment. This suggests that the cis elements and their cognate transcription factors participate in a sequential, coordinated regulation of COX-2 gene expression during an inflammatory response. In support of this concept, we found, using inhibitors of Jun kinase and NF-kappaB p50 nuclear localization, that COX-2 gene transcription was completely dependent on phospho-c-Jun plus p50 at 6 h after LPS treatment but was only partially dependent on the combination of these factors at later treatment times.

Animals↗
PubMed1996

How does trimethyltin affect the brain: facts and hypotheses.

Trimethyltin, an organic compound of tin, is a potent neurotoxicant of a mechanism of action yet to be uncovered. The neuropathological findings that trimethyltin causes selective hippocampal damage with several unique features, highly reminiscent of Ammon's horn sclerosis as a final result, have raised the possibility that there is a link between trimethyltin neurotoxicity and other degenerative events for which an imbalance between neuronal inhibition/excitation has been proposed. However, there still exists a whole catalog of issues which await clarification. One of the greatest importance is how does trimethyltin reach the critical sites within the brain and what are they? Available data concerning the long-term consequences related to trimethyltin neurotoxicity are also far from being completed. This review summarizes current data from in vitro and in vivo studies on neurotoxic effects of trimethyltin. Several hypotheses on mechanisms that may lead to neuronal death induced by the toxin are presented.

Animals↗
PubMed2001

Reference laboratory telephone service quality.

OBJECTIVES: To establish the rates with which reference laboratories resolve inquiries telephoned to them from primary laboratories and to identify reference laboratory practices associated with higher rates of inquiry resolution. DESIGN AND PARTICIPANTS: For 2 months, or until 50 contacts had occurred, 545 primary laboratories participating in the College of American Pathologists Q-Probes laboratory quality improvement program prospectively documented and characterized telephone inquiries they made to a reference laboratory of their choice. Participants also cataloged their own laboratory's demographic and practice characteristics and their reference laboratory's customer service characteristics. MAIN OUTCOME MEASURE: Rates with which reference laboratories resolved telephone inquiries. RESULTS: Participants characterized 11 031 (78.7%) of 14 017 telephone inquiries as resolved by the reference laboratories. Ranked according to inquiry resolution rates, primary laboratories in the 90th percentile characterized reference laboratories as resolving 100% of their inquiries; those in the 10th percentile characterized reference laboratories as resolving only 54.2% of their inquiries. The rate of resolved inquiries was significantly higher (P =.0047) for participants using reference laboratories with 24-hour customer service than it was for participants using reference laboratories with less than 24-hour service. Most primary laboratories (80.9%) chose to monitor 1 of 11 national reference laboratories; in this subset, median rates of inquiry resolution ranged from 90.2% to 55.0% (P <.0001), despite no significant variation in other measured customer service characteristics. CONCLUSIONS: Primary laboratories experience significant differences in the rates with which reference laboratories resolve telephone inquiries. The performance benchmark for reference laboratories is resolution of at least 90% of telephone inquiries from primary laboratory customers.

Humans↗
PubMed2026

Comprehensive adjudication identifies 111 high-confidence loci for Alzheimer's disease and related dementias.

BACKGROUND: The Alzheimer's Disease Sequencing Project Gene Verification Committee developed a systematic framework to adjudicate genetic evidence for AD and related dementias, addressing wide variation in association quality. METHODS: Phase 1 established tiered criteria by evaluating 23 nominated loci across study designs. Phase 2 applied this framework to 29 large-scale genome-wide studies published since 2015, tiering 163 unique loci. RESULTS: Phase 1 yielded 17 high-confidence loci (12 linked to specific genes), and Phase 2 identified 111 high-confidence loci/genes with replicated associations across ancestries and convergent single-variant/variant-set evidence. Prioritized loci highlight APP processing, microglial immunity, and lipid metabolism pathways, including genes not captured by existing resources like Agora or Open Targets. Summarized results can be viewed at https://topgenes.niagads.org/. CONCLUSION: This rigorously adjudicated catalog represents the most comprehensive AD/ADRD genetics resource to date, providing a foundation for functional validation and therapeutic discovery with broad applicability to complex diseases.

Journal Article↗
PubMed2026

OmicsPred as a centralised resource for genetic prediction of multi-omic traits.

Genetic prediction of multi-omic data has emerged as a cost-effective alternative to direct omics profiling, particularly useful for identifying molecular features associated with disease susceptibility. However, despite its popularity, multi-omic imputation models are fragmented across studies, hindering findability, accessibility, interoperability and re-use. To address this, we developed OmicsPred (https://www.omicspred.org), a centralised platform for the deposition and dissemination of genetic prediction models of multi-omic traits. OmicsPred unifies the most commonly used molecular imputation models (e.g. from PredictDB) and other published studies totalling 3,339,469 prediction models spanning transcriptomic, proteomic, and metabolomic traits (as of May 2026). Each model is accompanied by metadata describing score development and predictive performance, and distributed in formats compatible with popular analytic tools, such as PGS Catalog Calculator and MetaXcan. To demonstrate the utility of the resource for systematic target discovery, we perform a multi-omic phenome-wide association analysis in Million Veterans Program data.

Journal Article↗
PubMed2026

Identification of a putative RocS homolog through phenotypic profiling of uncharacterized essential genes in Streptococcus mutans.

Genome-wide viability catalogs produced by transposon sequencing (Tn-seq) and CRISPR interference (CRISPRi) have successfully mapped the essential genome of Streptococcus mutans . In this study, we combined predictive bioinformatics, conditional CRISPRi transcriptional silencing, transmission electron microscopy, transcriptomics, and genetic suppressor screens to investigate nine poorly characterized essential genes in S. mutans . From this screen, phenotypic and genetic analyses identified SMU_393 as a functional homolog of the pneumococcal chromosome segregation factor, RocS. Depletion of SMU_393 resulted in abnormal cell widening, hypersensitivity to DNA damage, and a significant subpopulation of anucleate cells. These phenotypes were bypassed by a spontaneous surface-exposed missense mutation ( dnaA Q197E ) within the AAA+ ATPase domain of the replication initiator. Together, this study refines annotations within the S. mutans essential genome and provides genetic insights into streptococcal chromosome segregation and cell cycle control.

Journal Article↗
PubMed2026

Massively parallel characterization and predictive modelling of neuronal regulatory variation.

Disease-associated variants reside frequently in noncoding cis-regulatory elements (CREs), yet their functional consequences remain poorly understood. We performed a large-scale lentiMPRA in human excitatory neurons, quantifying the impact of >46,000 naturally occurring variants across >27,000 candidate CREs near 524 disease-associated genes. These data improved regulatory variant effect predictions beyond state-of-the-art models. Significant allelic effects occurred at comparable rates across common, rare, and singleton variants, demonstrating that, within MPRA-measurable effects, population frequency carries limited information about per-variant regulatory impact. Variant effect detectability and magnitude were governed primarily by baseline activity of the enclosing regulatory element and local sequence context. Regulatory effects were distributed across numerous transcription factors rather than concentrated in master regulators, consistent with a combinatorial enhancer architecture. We establish a large-scale functional variant catalog and provide a complementary benchmark and resource for developing and evaluating models of noncoding regulatory variation.

Journal Article↗
PubMedDate not supplied

One community hospital--2000 AD.

The hospital with which the author has been associated for more 40 years is undergoing the most dramatic changes in its century of existence. These changes have been added to a catalog of past changes and speak to changes that are yet to come. The author describes the process by which this community hospital, and by inference others, has reached its present status and suggests what it may look like in the future.

Forecasting↗
PubMedDate not supplied

Reporting charity care. Hospitals must prepare to comply with new AICPA accounting rules.

To comply with new accounting rules issued by the American Institute of Certified Public Accountants (AICPA), hospitals will have to change the way they report charity care in the financial statements they prepare for fiscal years ending mid-July 1991 and later. In the past, those hospitals which did report charity care information usually lumped it with bad debts under a caption such as "uncompensated services" or disclosed a specific amount of charity care to comply with Hill-Burton or other governmental programs. From now on, however, providers' financial statements must distinguish bad debt from charity care, not report gross patient revenues in the income statement, not imply that charity services generate revenue or receivables, make specific disclosures about the level of charity care provided, and report bad debts as an expense, rather than as a deduction from revenue. Distinguishing bad debts from charity care will be difficult. The AICPA defines bad debts as actual or expected uncollectibles resulting from an extension of credit, and charity care as services for which the provider does not expect payment. The AICPA believes that facilities which establish a definitive management policy on charity care should be able to distinguish between the two. To collect the data necessary to meet the AICPA requirements, hospitals need to establish a method to catalog the charity services they provide. Facilities should also ensure that patients and staff are familiar with their charity care policies.

Accounting↗