Miracle-dz/UniFAR-FTUs huggingface dataset:
Altered localization of Cav1.2 (L‐type) calcium channels in nerve fibers, Schwann cells, odontoblasts, and fibroblasts of tooth pulp after tooth injury

We have determined the localization of Cav1.2 (L‐Type) Ca2+ channels in the cells and nerve fibers in molars of normal or injured rats. We observed high levels of immunostaining of L‐type Ca2+ channels in odontoblast cell bodies and their processes, in fibroblast cell bodies and in Schwann cells. Many Cav1.2‐containing unmyelinated and myelinated axons were also present in root nerves and proximal branches in coronal pulp, but were usually missing from nerve fibers in dentin. Labeling in the larger fibers was present along the axonal membrane, localized in axonal vesicles, and in nodal regions. After focal tooth injury, there is a marked loss of Cav1.2 channels in injured teeth. Immunostaining of Cav1.2 channels was lost selectively in nerve fibers and local cells of the tooth pulp within 10 min of the lesion, without loss of other Cav channel or pulpal labels. By 60 min, Cav1.2 channels in odontoblasts were detected again but at levels below controls, whereas fibroblasts were labeled well above control levels, similar to upregulation of Cav1.2 channels in astrocytes after injury. By 3 days after the injury, Cav1.2 channels were again detected in nerve fibers and immunostaining of fibroblasts and odontoblasts had returned to control levels. These findings provide new insight into the localization of Cav1.2 channels in dental pulp and sensory fibers, and demonstrate unexpected plasticity of channel distribution in response to nerve injury. © 2003 Wiley‐Liss, Inc.
13C-Mixed Triglyceride Breath Test for Evaluation of Pancreatic Exocrine Function in Diabetes Mellitus

Objective The clinical relevance of pancreatic exocrine insufficiency (PEI) in diabetic patients is unclear mostly because established function tests are invasive and expensive or lack sensitivity and specificity. A modified version of the noninvasive 13C-mixed triglyceride breath test (13C-MTGT) has recently been shown to detect moderate PEI reliably in patients with chronic pancreatitis. Its sensitivity and specificity in other patient groups are unknown. We therefore aimed to clarify the significance of this test for patients with diabetes mellitus (DM). Methods A secretin cerulein test and a modified 13C-MTGT were performed in 14 patients with DM (10 patients with type 1 DM) and 10 healthy volunteers. Results Secretin cerulein test showed significantly lower outputs of amylase, trypsin, and lipase in DM compared with healthy volunteers (P < 0.05). Likewise, 13C-MTGT showed significantly lower maximal and cumulative 13C-exhalation in DM (P < 0.005). Stimulated lipase output correlated with cumulative 13C-exhalation (P < 0.05). However, when compared with normal values, only 2 patients with diabetes had abnormally low lipase output, whereas cumulative 13C-exhalation was pathologically decreased in 8 patients, including those with decreased lipase output. Conclusions The noninvasive 13C-MTGT can detect mild to moderate PEI in DM. However, the specificity of the 13C-MTGT is low in these patients probably because nonpancreatic mechanisms contribute to decreased intestinal lipolysis.
IMPACT OF NOSOCOMIAL INFECTIOUS COMPLICATIONS AFTER SUBARACHNOID HEMORRHAGE

OBJECTIVECritically ill neurological patients are susceptible to infections that may be distinct from other intensive care patients. The aim of this study is to quantify the prevalence, risk factors, and effect on the outcome of nosocomial infectious complications in patients with subarachnoid hemorrhage (SAH). METHODSWe studied 573 consecutive patients with SAH, identified the most prevalent infectious complications, and performed univariate analyses to determine risk factors for each complication. Multiple logistic regression models were constructed to calculate adjusted odds ratios for associated risk factors and to assess the impact of infectious complications on 3-month outcome as evaluated with the modified Rankin Scale. RESULTSThe most prevalent nosocomial infections were pneumonia (n = 114, 20%), urinary tract infection (n = 77, 13%), bloodstream infection (BSI) (n = 48, 8%), and meningitis/ventriculitis (n = 28, 5%). Significant independent associations with pneumonia included older age, poor Hunt and Hess grade, intubation/mechanical ventilation, and loss of consciousness at ictus. Urinary tract infection was associated with female sex and central line use. BSI was also associated with central line use, and meningitis/ventriculitis was associated with the presence of intraventricular hemorrhage and external ventricular drainage (all P < 0.05). After adjustment for Hunt and Hess grade, aneurysm size, and age, pneumonia (adjusted odds ratio, 2.04; 95% confidence interval, 1.12–3.71; P = 0.020) and BSI (adjusted odds ratio, 2.51; 95% confidence interval, 1.14–5.56; P = 0.023) independently predicted death or severe disability at 3 months. Prolonged length of stay was significantly associated with all infection types (P < 0.001). CONCLUSIONPneumonia and BSI are common infectious complications of SAH and independently predict poor outcome. The implementation of infection-control measures may be needed to improve outcome after SAH.
IL-12 Instructs Skin Homing of Human Th2 Cells1

Distinct pattern of homing receptors determines the tissue preference for T cells to exert their effector functions. This homing competence is mostly determined early during T cell activation of naive T cells. In contrast, mechanisms governing the acquisition of particular homing receptors by T cells of the memory phenotype remain enigmatic. Th2 cell-mediated allergic diseases tend to flare during infections despite that these infections prime APCs to produce the prototypic Th1 cell-differentiating cytokine IL-12. In this study, we investigate the effect of IL-12 on the regulation of cutaneous lymphocyte Ag (CLA) on differentiated Th2 cells and consequences of this expression for allergic inflammation. Upon activation with IL-12, CLA− Th2 cells rapidly up-regulated IL-12Rβ2 chain, α(1-3)-fucosyltransferase VII, and CLA molecules. IL-12-mediated CLA expression on Th2 cells was functional because it mediated rolling of these Th2 cells on E-selectin in vitro and migration into human skin grafts in SCID mice. CLA induction occurred immediately after exposure to IL-12 and was independent of IFN-γ expression. In accordance, the transcription factor mediating IFN-γ expression, T-bet, does not directly affect CLA expression. However, CLA expression was further enhanced after IL-12 treatment of T-bet+-transfected Th2 cells in agreement with an increased IL-12 responsiveness of these cells caused by T-bet. The finding that IL-12 conferred skin-homing potential to already differentiated Th2 cells before inducing a switch in their cytokine production profile may explain the observed exacerbation of allergic skin diseases following bacterial infections.
T Cells of Atomic Bomb Survivors Respond Poorly to Stimulation by Staphylococcus aureus Toxins In Vitro: Does This Stem from their Peripheral Lymphocyte Populations Having a Diminished Naïve CD4 T-Cell Content?

Abstract Kusunoki, Y. , Yamaoka, M. , Kasagi, F. , Hayashi, T. , Koyama, K. , Kodama, K. , MacPhee, D. G. and Kyoizumi, S. T Cells of Atomic Bomb Survivors Respond Poorly to Stimulation by Staphylococcus aureus Toxins In Vitro: Does This Stem from their Peripheral Lymphocyte Populations Having a Diminished Naïve CD4 T-Cell Content? Radiat. Res. 158, 715–724 (2002). We found previously that the peripheral CD4 T-cell populations of heavily exposed A-bomb survivors contained fewer naïve T cells than we detected in the corresponding unexposed controls. To determine whether this demonstrable impairment of the CD4 T-cell immunity of A-bomb survivors was likely to affect the responsiveness of their immune systems to infection by common pathogens, we tested the T cells of 723 survivors for their ability to proliferate in vitro after a challenge by each of the Staphylococcus aureus toxins SEB, SEC-2, SEC-3, SEE and TSST-1. The results presented here reveal that the proliferative responses of T cells of A-bomb survivors became progressively weaker as the radiation dose increased and did so in a manner that correlated well with the decreasing CD45RA-positive (naïve) [but not CD45RA-negative (memory)] CD4 T-cell percentages that we found in their peripheral blood lymphocyte (PBL) populations. We also noted that the T cells of survivors with a history of myocardial infarction tended to respond poorly to several (or even all) of the S. aureus toxins, and that these same individuals had proportionally fewer CD45RA-positive (naïve) CD4 T cells in their PBL populations than we detected in survivors with no myocardial infarction in their history. Taken together, these results clearly indicate that A-bomb irradiation led to an impairment of the ability of exposed individuals to maintain their naïve T-cell pools. This may explain why A-bomb survivors tend to respond poorly to toxins encoded by the common pathogenic bacterium S. aureus.
Hospitalists and the Doctor‐Patient Relationship

Hospitalists—physicians whose practice focuses on the care of hospitalized general medicine patients—are increasingly common in the United States, often displacing primary care physicians from this role. While advocates of hospitalists point to evidence of cost reduction and perhaps improved short‐run outcomes, critics question whether costs or long‐run outcomes are improved and whether there may be insidious effects on the doctor‐patient relationship. I define a framework for addressing these questions, assess the available evidence, and identify a research agenda to better understand the implications of the hospitalist movement for the doctor‐patient relationship. Using a framework that emphasizes general and patient‐specific knowledge as crucial to a successful doctor‐patient relationship, I argue that the success of the hospitalist model will depend on its ability to continue to develop its areas of technical expertise while ensuring care that is both continuous and appropriate to the needs and values of individual patients.
The prevalence of intimate partner violence across orthopaedic fracture clinics in Ontario.

BACKGROUND from 1999 to 2004, an estimated 653,000 women in Canada were either physically or sexually abused by their current or previous intimate partners. We aimed to determine the proportion of women presenting to orthopaedic fracture clinics for the treatment of musculoskeletal injuries who had experienced intimate partner violence, defined as physical, sexual, or emotional abuse, within the past twelve months. METHODS we completed a cross-sectional study of 282 injured women attending two Level-I trauma centers in Canada. Female patients presenting to the orthopaedic fracture clinics anonymously completed two previously developed self-reported written questionnaires, the Woman Abuse Screening Tool (WAST) and the Partner Violence Screen (PVS), to determine the prevalence of intimate partner violence. The questionnaire also contained questions that pertain to the participant's demographic characteristics, fracture characteristics, and experiences with health-care utilization. RESULTS the overall prevalence of intimate partner violence (emotional, physical, and sexual abuse) within the last twelve months was 32% (95% confidence interval, 26.4% to 37.2%). Twenty-four (8.5%) of the injured women disclosed a history of physical abuse in the past year. Seven women indicated that the cause for their current visit was directly related to physical abuse. Ethnicity, socioeconomic status, and injury patterns were not associated with abuse. Of the twenty-four women who reported physical abuse, only four had been asked about intimate partner violence by a physician; none of these physicians were the treating orthopaedic surgeons. CONCLUSIONS our study suggests a high prevalence of intimate partner violence among female patients with injuries who presented to two orthopaedic fracture clinics in Ontario. Surgeons and health-care personnel in fracture clinics should consider intimate partner violence when interacting with injured women.
Deep brain stimulation and cognitive functions in Parkinson's disease: A three‐year controlled study

There is debate over the cognitive and behavioral effects of deep brain stimulation (DBS) of the subthalamic nucleus (STN) in advanced Parkinson's disease (PD). To evaluate these effects, we performed a prospective, naturalistic controlled, 3‐year follow‐up study. A total of 65 PD patients were enrolled, of whom 32 underwent STN‐DBS (PD‐DBS) and 33, even though eligible for this treatment, declined surgery and chose other therapeutic procedures (PD‐control). Motor and neuropsychological functions were assessed in all the subjects at baseline (T0) and 36 months (T36). The PD‐DBS patients were also evaluated at 1, 6, 12, and 24 months after surgery (T1, T6, T12, and T24). At T1, compared with T0, the PD‐DBS patients recorded worse logical executive function task and verbal fluency (FAS) scores, whereas their performance of memory tasks remained stable. At T12, their cognitive profile had returned within the pre‐DBS range, thereafter remaining stable until T36. FAS scores at T36 were significantly worse in the PD‐DBS compared with the PD‐control patients. This is the first long‐term naturalistic controlled study of cognitive functions in PD patients submitted to STN‐DBS. Our results confirm previous reports of a worsening of verbal fluency after DBS, but show that STN‐DBS seems to be relatively safe from a cognitive standpoint, as the short‐term worsening of frontal‐executive functions was found to be transient. © 2009 Movement Disorder Society
CLINICAL INFECTION OF TWO CAPTIVE ASIAN ELEPHANTS (ELEPHAS MAXIMUS) WITH ELEPHANT ENDOTHELIOTROPIC HERPESVIRUS 1B

Abstract The ability of prior infection from one elephant endotheliotropic herpesvirus (EEHV) type to protect against clinical or lethal infection from others remains an important question. This report describes viremia and subsequent shedding of EEHV1B in two juvenile 4-yr-old Asian elephants within 3 wk or 2 mo following significant infections caused by the rarely seen EEHV4. High levels of EEHV1B shedding were detected in the first elephant prior to emergence of infection and viremia in the second animal. The EEHV1B virus associated with both infections was identical to the strain causing infection in two herd mates previously. High EEHV viremia correlated with leukopenia and thrombocytopenia, which was followed by leukocytosis and thrombocytosis when clinical signs started to resolve. The observations from these cases should be beneficial for helping other institutions monitor and treat elephants infected with EEHV1, the most common virus associated with lethal hemorrhagic disease.
BEREAVEMENT SUPPORT FOR COUPLES FOLLOWING DEATH OF A BABY: PROGRAM DEVELOPMENT AND 14-YEAR EXIT ANALYSIS

Program development, implementation, and a 14-year exit analysis of a bereavement support program for couples whose baby died in the Neonatal Intensive Care Unit (NICU) is presented. A closed, hospital-based, time-limited (12 weeks) format was used. Team leadership was used and 54% of bereaved NICU parents participated. Each group was structured with a 2-week introductory period, open format grief-focused weekly discussions, evaluation in Week 11, and summary session with termination in Week 12. The exit analysis details program strengths, weaknesses, and recommendations. Bereavement support groups are one part of what we contend should be a comprehensive bereavement program, organized to care for families prior to, during, and after a baby's death. A sensitive, spiritually aware, supportive environment should be maintained throughout with relationship building as a cornerstone of the program.
THE TAXONOMIC STATUS OF DIGRAMMA (PSEUDOPHYLLIDEA: LIGULIDAE) INFERRED FROM DNA SEQUENCES

The traditional classification of the ligulid tapeworms into 2 genera, Ligula Bloch, 1782 and Digramma Cholodkovsky, 1914, remains controversial. Molecular data of sequences for the 5′ end of the nuclear 28S ribosomal ribonucleic acid (rRNA) gene, the mitochondrial cytochrome c oxidase subunit I (COI) gene, and the nicotinamide adenine dinucleotide dehydrogenase subunit 1 (ND1) gene, as well as the first internal transcribed spacer (ITS1) of the nuclear ribosomal deoxyribonucleic acid (DNA), were used to characterize Digramma and to investigate its relationship with Ligula. Digramma spp. exhibited identical sequences with Ligula intestinalis both in the 28S rRNA and the COI gene and differed from L. intestinalis by 0.7% in the ITS1 region and 7.4% in the ND1 gene, respectively. A high degree of genetic conservation within 28S ribosomal DNA, COI, ITS1, and even ND1 genes, was found in Ligula and Digramma. The low genetic divergence in the 4 genes between Ligula and Digramma indicates that Digramma is probably not an independent genus. Therefore, it is proposed that Ligula and Digramma should be considered as 2 species within the genus Ligula and the tapeworms of Digramma collected from diverse localities in China belong to the same species. The present study also suggests that ITS1 and ND1 sequences can act as useful genetic markers to distinguish Ligula and Digramma.
Effect of theophylline on contrast material-nephropathy in patients with chronic renal insufficiency: controlled, randomized, double-blinded study.

PURPOSE To investigate whether the adenosine antagonist theophylline reduces the incidence of contrast material-induced nephropathy (serum creatinine level increase of at least 0.5 mg/dL [44.2 micromol/L] in 48 hours) in high-risk patients who have chronic renal insufficiency and have received at least 100 mL of contrast medium. MATERIALS AND METHODS One hundred patients with serum creatinine levels of 1.3 mg/dL (114.3 micromol/L) or greater were randomly assigned to intravenously receive 200 mg theophylline or saline 30 minutes before administration of 100 mL or more of low-osmolarity contrast medium arterially (72 [72%] patients) or intravenously (28 [28%] patients). RESULTS Patients receiving theophylline and control subjects were comparable with regard to risk factors for contrast-induced nephropathy such as mean serum creatinine level before contrast medium administration (2.07 mg/dL +/- 0.94 [SD] [182.9 micromol/L +/- 83.1] vs 1.92 mg/dL +/- 0.76 [169.7 micromol/L +/- 67.2], respectively), amount of contrast medium (196.5 mL +/- 84.1 vs 216.6 mL +/- 95.0, respectively), and diabetes prevalence. Theophylline prophylaxis significantly reduced the incidence of contrast material-induced nephropathy (4% vs 16%; P =.046). With theophylline, the mean serum creatinine level decreased nonsignificantly 12 (1.98 mg/dL +/- 0.77 [175.0 micromol/L +/- 68.1]; P =.09), 24 (1.97 mg/dL +/- 0.75 [174.1 micromol/L +/- 68.1]; P =.99), and 48 (1.94 mg/dL +/- 0.77 [171.5 micromol/L +/- 68.1]; P =.99)(1.94 mg/dL +/- 0.77 [171.5 micromol/L +/- 68.1]; P =.99) hours after contrast medium administration. With a placebo, serum creatinine level significantly increased 24 hours after contrast medium administration (2.01 mg/dL +/- 0.89 [177.7 micromol/L +/- 78.7]; P =.006). Urinary N-acetyl-beta-glucosaminidase level did not change with theophylline administration but significantly (P =.034) increased 24 hours after contrast medium administration with the placebo. CONCLUSION Prophylactic administration of 200 mg theophylline reduces the incidence of contrast material-induced nephropathy in patients with chronic renal insufficiency.
Morphometric analysis of molars in a Middle Pleistocene population shows a mosaic of ‘modern’ and Neanderthal features

Previous studies of upper first molar (M1) crown shape have shown significant differences between Homo sapiens and Homo neanderthalensis that were already present in the European Middle Pleistocene populations, including the large dental sample from Atapuerca‐Sima de los Huesos (SH). Analysis of other M1 features such as the total crown base area, cusp proportions, cusp angles and occlusal polygon have confirmed the differences between both lineages, becoming a useful tool for the taxonomic assignment of isolated teeth from Late Pleistocene sites. However, until now the pattern of expression of these variables has not been known for the SH sample. This fossil sample, the largest collection from the European Middle Pleistocene, is generally interpreted as being from the direct ancestors of Neanderthals, and thus is a reference sample for assessing the origin of the Neanderthal morphologies. Surprisingly, our study reveals that SH M1s present a unique mosaic of H. neanderthalensis and H. sapiens features. Regarding the cusp angles and the relative occlusal polygon area, SH matches the H. neanderthalensis pattern. However, regarding the total crown base area and relative cusps size, SH M1s are similar to H. sapiens, with a small crown area, a strong hypocone reduction and a protocone enlargement, although the protocone expansion in SH is significantly larger than in any other group studied. The SH dental sample calls into question the uniqueness of some so‐called modern traits. Our study also sounds a note of caution on the use of M1 occlusal morphology for the alpha taxonomy of isolated M1s.
A Polyketide Metabolite from an Endophytic Fusarium equiseti in a Medicinal Plant

A new polyketide, fusaequisin A (1), was isolated from rice cultures of Fusarium equiseti SF-3-17, an endophytic fungus previously discovered during screening of medicinal plants in Cameroon. The structure of 1 was determined using spectroscopic methods. Fusaequisin A (1) exhibited moderate antimicrobial activity against Staphylococcus aureus NBRC 13276 and Pseudomonas aeruginosa ATCC 15442 at a concentration of 200 μg per disk. Graphical Abstract A Polyketide Metabolite from an Endophytic Fusarium equiseti in a Medicinal Plant
A Parallel Multigrid Algorithm for Solving Elliptic Equations in the Cardiac Bidomain Model

Elliptic partial differential equations (PDEs) are ubiquitous in problems concerned with modeling steady state field distributions in different media. In biology and medicine, the rapid numerical solution of elliptic PDEs are necessary for the bidomain model of myocardium and in the study of phenomena associated with external shock applications to the heart (defibrillation therapy). Here, we summarize the development and study of a novel parallel multigrid algorithm, adapted from a parallel multigrid solver from the hypre numerical library, for subsequent use in studying wave propagation in the twodimensional (2D) bidomain model of the myocardium (with and without the presence of external defibrillation shocks). Our simulation study, using this novel multigrid algorithm and implemented on a massively parallel supercomputer, shows: (1) the computation time for the bidomain model fell by a factor of 10 (in comparison to the sequential multigrid implementation), while using 64 processors, without introducing significant error in the solution; (2) as the number of processors increased beyond the linear range of scalability, the computation time of the bidomain model continued to decrease, but only asymptotically; and (3) virtually identical distributions of Vm during 2D spiral wave propagations were produced by our original sequential implementation of the multigrid algorithm and our novel algorithm. The significant time savings realized by our novel algorithm will make possible future computer simulation studies of three-dimensional myocardium using the bidomain model, with particular emphases on defibrillationassociated phenomena.