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排序方式: 共有337条查询结果,搜索用时 10 毫秒
1.
Tandon A Singh A Atrishi E Saxena SK Mathur A 《International journal of experimental pathology》2002,83(1):39-46
A unique factor, human T cell hypoglycaemic factor (hTCHF), has been shown to produce hypoglycaemia during the convalescent stage in the plasma of patients with Japanese encephalitis virus (JEV) infection. The present study was undertaken to investigate the ability of T cells from fresh peripheral blood mononuclear cells (PBMC) of such patients to produce hTCHF. The PBMC, as well as the individual subpopulations, were cultured for 24 h and the culture supernatants (CS) were assayed for hypoglycaemic activity. The activity was observed in the CD8+ T cells. The hypoglycaemia in JE-confirmed patients coincided with the gradual rise in circulating glucagon level, with no significant alterations in insulin, growth hormone and cortisol levels. The hTCHF was purified by ion exchange chromatography and the purified protein was observed as a approximately 25 kDa band on SDS-PAGE. Secretory hTCHF in the sera of patients and T cell CS was present in 88% of convalescent serum samples. We conclude that during the convalescent stage of JEV infection, a unique factor, hTCHF, is secreted by activated CD8+ T cells from patients and that this is responsible for the development of hypoglycaemia. 相似文献
2.
Pande Apurva Lamba Nayan Mammi Marco Gebrehiwet Paulos Trenary Alyssa Doucette Joanne Papatheodorou Stefania Bunevicius Adomas Smith Timothy R. Mekary Rania A. 《Neurosurgical review》2021,44(3):1227-1241
Neurosurgical Review - Treatment options for hydrocephalus include endoscopic third ventriculostomy (ETV) and ventriculoperitoneal shunt (VPS). Some ambiguity remains regarding indications, safety,... 相似文献
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Lauren Jodi Van Scoy Jean M. Reading Judie A. Howrylak Apurva Tamhane Michael S. Sherman 《Death Studies》2016,40(8):486-493
Septic shock is a disease with both high prevalence and mortality. Few studies have evaluated the quality of dying and death (QODD) in patients with septic shock. The authors compared the QODD of patients who died of septic shock versus other causes. They prospectively collected QODD surveys from nurses and residents caring for 196 patients who died in the medical intensive care unit (ICU) at an urban, university hospital. Patients were included in the analysis if either a nurse or resident returned a survey. Chart review established cause of death. The authors compared total QODD scores (on a scale of 0–100) and a single-item score (QODD-1; on a scale of 0–10) of patients who died of septic shock versus other causes. Survey response rates were 59% (n = 155) for residents and 49% (n = 129) for nurses. Nurses rated patients as having lower total QODD and QODD-1 scores for septic (Δ 7.5 points, p = 0.03, and 0.9 points, p = 0.05, respectively). Residents rated septic patients with lower QODD-1 scores than nonseptic patients (Δ 0.8 points, p = 0.03). This study shows that nurses rate patients with septic shock as having lower QODD than patients dying of other causes. These findings are important for clinicians who counsel families of patients dying of septic shock. 相似文献
5.
Lakshmi R. Perumalsamy Manjula Nagala Apurva Sarin 《Proceedings of the National Academy of Sciences of the United States of America》2010,107(15):6882-6887
Survival of differentiated cells is one of several processes regulated by Notch activity, although the general principles underlying this function remain to be characterized. Here, we probe the mechanism underlying Notch-mediated survival, building on emerging evidence that apoptotic responses coordinated by specialized intermediates converge on mitochondria, identifying a core event in death pathways. The Bcl-2 family protein Bax is one such intermediate, which in a unifying response to diverse apoptotic stimuli nucleates multiprotein assemblies on mitochondria, committing cells to irrevocable damage. Using Bax as the prototype stimulus, we analyze Notch signaling for potential interactions with mitochondria, probe intrinsic properties of the Notch receptor, and describe key intermediates in the Notch-activated signaling cascade. Ligand-dependent processing was necessary to generate the Notch intracellular domain (NIC) although signaling was independent of canonical interactions with nuclear factors. Notably, antiapoptotic activity was recapitulated by NIC recombinants, localized outside the nucleus, and compromised by enforced nuclear sequestration. NIC signaled via the kinase Akt to prevent the loss of mitochondrial function, contiguity, and consequent nuclear damage, outcomes critically depend on mitochondrial remodeling proteins Mitofusins-(Mfn)-1 and 2. Thus, the NIC-Akt-Mfn signaling cascade identifies a pathway regulating cell-survival, independent of canonical functions associated with NIC activity. 相似文献
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Nguyen Jie C. Shah Apurva S. Nguyen Michael K. Baghdadi Soroush Nicholson Anthony Guariento Andressa Kaplan Summer L. 《Emergency radiology》2021,28(3):565-572
Emergency Radiology - The purpose of this study was to systematically investigate the performance of different radiographic views in the identification of scaphoid fractures in children. This... 相似文献
8.
Daniel M. Koehler Yubo Gao Justin J. Guan Ericka A. Lawler Brian D. Adams Apurva S. Shah 《Hand (New York, N.Y.)》2015,10(4):670-677
Background
Diabetes mellitus increases the risk of complications following operative treatment of lower extremity fractures. There is little published data establishing the impact of diabetes following surgical treatment of upper extremity fractures. This investigation aimed to compare the incidence of short-term postsurgical complications following volar locked plating of distal radius fractures in patients with and without diabetes.Methods
A retrospective matched cohort investigation of 33 diabetics matched 1:2 to 66 non-diabetics was performed, accounting for age, gender, fracture type, and smoking status. Electronic medical records and radiographs were reviewed for all major and minor postsurgical complications. Demographic characteristics, postoperative radiographic parameters, and final range of motion were also compared. Mean follow-up was 5.3 ± 8.2 and 5.5 ± 7.8 months for diabetics and non-diabetics, respectively.Results
The diabetic cohort had a significantly higher overall complication rate with 24 postsurgical complications affecting 12 patients (36 %) compared to 16 complications affecting 12 patients (18 %) in the non-diabetic cohort. There was no difference in the incidence of major complications requiring operative intervention. Minor complications were significantly more common in the diabetic group and were largely accounted for by peripheral neuritis with an incidence of 30 %. Final radiographic outcomes and range of motion were similar.Conclusions
Diabetics experienced a greater incidence of minor postsurgical complications following volar locked plating of distal radius fractures when compared to a matched, control population. The difference in outcomes is largely accounted for by the increased incidence of peripheral neuritis among diabetics. Diabetic patients should be counseled pre-operatively regarding their elevated risk profile. 相似文献9.
10.
Apurva O. Badheka Neeraj Shah Peeyush M. Grover Nileshkumar J. Patel Ankit Chothani Kathan Mehta Vikas Singh Abhishek Deshmukh Ghanshyambhai T. Savani Ankit Rathod Sidakpal S. Panaich Nilay Patel Shilpkumar Arora Vipulkumar Bhalara James O. Coffey Raul D. Mitrani Jonathan L. Halperin Juan F. Viles-Gonzalez 《The American journal of cardiology》2014