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Articles by P Jain
Total Records ( 3 ) for P Jain
  B Asthana , P Sharma , R Ranjan , P Jain , A Aravindan , P Chandra Mishra and R. Saxena
 

Bleeding disorders constitute a large proportion of referrals to hematology departments. Worldwide, acquired causes of bleeding are commoner than inherited ones. To identify the spectrum of these disorders, we evaluated all referrals for bleeding encountered in this tertiary care centre over a one-year period. Of the total 1342 cases, 1040 (77.5%) had underlying exclusively acquired causes, whereas inherited causes constituted 302 cases (22.5%). Amongst acquired causes, disseminated intravascular coagulation was seen in 297 (28.6%), hepatic coagulopathy in 218 (20.9%), neurosurgical causes (intracranial bleeds) in 154 (14.8%), malignancy in 89 (8.6%), and miscellaneous multiple acquired causes including those due to anticoagulant drug overdose in 282 patients (27.1%). Referrals for isolated prolonged prothrombin time or thrombocytopenia were common, but were excluded from this study because not all presented with bleeding. Prompt laboratory work-up and precise identification of acquired causes of bleeding is the key to planning appropriate patient management including transfusion support.

  R Fish , J Pinney , P Jain , C Addison , C Jones , S Jayawardene , J Booth , A. J Howie , T Ghonemy , S Rajabali , D Roberts , L White , S Khan , M Morgan , P Cockwell and C. A. Hutchison
 

Background and objectives: Monoclonal gammopathies frequently cause renal disease, but they may be an incidental finding. Assessment of renal pathology in the context of renal dysfunction and a monoclonal gammopathy therefore serves as a useful diagnostic tool and, in addition, provides prognostic information. There is, however, a theoretical risk of increased hemorrhagic complications from renal biopsies in this setting. The purpose of this study was to determine the incidence of significant hemorrhagic complications after renal biopsies in patients with monoclonal gammopathies.

Design, setting, participants, & measurements: The case notes of 1993 unselected patients from four teaching hospitals within the United Kingdom who underwent native or transplant renal biopsies between 1993 and 2008 were reviewed. Subjects were categorized as having a monoclonal gammopathy or not, and the incidence of major hemorrhagic complications between groups was compared.

Results: In total, 74 (3.7%) patients (native and transplant biopsies) had a major hemorrhagic complication. One hundred forty-eight subjects with a monoclonal gammopathy were identified. The complication rate in this group was 4.1% compared with 3.9% in the control population (native biopsies only; P = 0.88).

Conclusions: In the population studied, the rate of major hemorrhagic complications after percutaneous renal biopsy was not significantly greater in patients with a monoclonal gammopathy.

  S Gangodkar , P Jain , N Dixit , K Ghosh and A. Basu
 

The biogenesis events and formation of dengue virus (DENV) in the infected host cells remain incompletely understood. In the present study, we examined the ultrastructural changes associated with DENV-2 replication in three susceptible host cells, C6/36, Vero and SK Hep1, a cell line of human endothelial origin, using transmission electron microscopy, whole-mount grid-cell culture techniques and electron tomography (ET). The prominent feature in C6/36 cells was the formation of large perinuclear vacuoles with mature DENV particles, and on-grid whole-mount examination of the infected Vero cells showed different forms of DENV core structures associated with cellular membranes within 48 h after infection. Distinct multivesicular structures and prominent autophagic vesicles were seen in the infected SK Hep1 cells when compared with the other two cell lines. ET showed the three-dimensional organization of these vesicles as a continuous system. This is the first report of ET-based analysis of DENV-2 replication in a human endothelial cell line. These results further emphasizes the strong role played by intracellular host membranes–virus interactions in the biogenesis of DENV and strongly argues for the possibility of targeting compounds to block such structure formation as key anti-dengue agents.

 
 
 
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