Publications by authors named "Subodh Varshney"

There is a paucity of health policy relevant data for chronic liver disease from India, impeding formulation of an interventional strategy to address the issue. A prospective, multicentric study to delineate the etiology and clinical profile of chronic liver disease in India is reported here. A centrally coordinated and monitored web-based data repository was developed (Feb, 2010 to Jan, 2013) and analyzed.

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Aim: The work attempts to overcome tumor-associated immune tolerance using a surface-modified solid lipid nanoparticle (SLNP) delivery system for dendritic cell (DC) immunotherapy.

Materials & Methods: Different formulations of SLNPs (SLNPs-alone, cationic SLNPs and mannosylated SLNPs) were prepared using tumor cell lysates. Prepared nanoparticles were characterized and their ability to activate DCs to induce a tumor cell-specific response was assessed.

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The present study evaluated the plausible role of circulating biomarkers in immune pathogenesis of chronic hepatitis considered a priority in clinical hepatology. Total viral load of chronic hepatitis B virus (HBV) and hepatitis C virus (HCV) patients was quantified and correlation studies were performed with circulating levels of Th1/Th2 cytokines; C reactive protein and circulating nucleosomes; glutathione reductase (GR) and superoxide dismutase. To our knowledge, the study is first among its kind that validates strong positive correlation of viral load with IL-4, IL-6, GR in HBV and IL-6, IL-10, GR in HCV infections.

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Unlabelled: Lymphoepithelial cysts are rare pancreatic lesions of undetermined pathogenesis. The literature on this entity is limited to case reports or small series. We describe a case of 66 year male, incidentally diagnosed as lymphoepithelial cyst of pancreas that was managed by enucleation.

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Background: Hepatitis C virus (HCV) infects nearly 3% of the population worldwide and is a major cause of acute and chronic infections leading to fibrosis, cirrhosis, and hepatocellular carcinoma. Current laboratory diagnosis of HCV is based on specific antibody detection (anti-hepatitis C virus (anti-HCV)) in serum. As HCV replicates in the liver cells, detection and localization of HCV RNA in liver tissue are vital for diagnosis.

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Occult hepatitis C viral infection (OHCI) is a newly reported pathological entity associated with increased risk of developing hepatocellular carcinoma and lymphoproliferative disorders. Although hepatocytes are the primary sites of viral replication, hepatitis C virus is potentially lymphotropic, invading and propagating in cells of the immune system. Lymphocytes, the extrahepatic viral reservoirs, are differentially implicated in the occult and the active forms of the disease.

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Introduction: Peritoneal loose bodies, or peritoneal mice, are rare asymptomatic lesions that are usually found as an incidental finding during abdominal surgery or autopsy. Giant loose bodies, measuring more than 5 cm, are rare and only a few cases are reported in the literature. These bodies are usually infarcted appendices epiploicae, which become detached and appear as a peritoneal loose body in the abdominal cavity.

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Objective: The potential toxic effects on the immune system exerted by occupational and accidental environmental exposures and underlying molecular regulatory mechanisms involved in the etiology and progression of infectious diseases are now being characterized. The Bhopal gas tragedy is undoubtedly one of the worst industrial disasters in the history of mankind. After 25 years of accidental exposure to methyl isocyanate (MIC), severe systemic ailments still continue to pre-occupy the lives of the affected population that survived this tragedy.

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Background/aims: We aimed to perform the molecular detection of Mycobacterium tuberculosis in formalin-fixed, paraffin-embedded tissues and biopsies of gastrointestinal specimens using real-time polymerase chain reaction system.

Methods: The study included three groups: (A) control (n=24), with no previous signs of M. tuberculosis complex (MTBC), (B) patients (n=28) with known TB origin and (C) patients (n=50) with clinical and histopathological signs of TB but who were culture- and acid-fast bacilli (AFB)-negative.

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Occult HBV infections (OHBI) are often associated with poor therapeutic response and increased risk of developing hepatocellular carcinoma. Despite a decade of research, OHBI still remains an intricate issue and much is yet to be defined about their possible immune implications. As HBV is known to infect peripheral blood lymphocytes, the present study aimed to explore the molecular mechanisms underlying DNA damage response triggered due to OHBI in host cells.

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Background: There have been an increasing number of reports world-wide relating improved outcomes after pancreatic resections to high volumes thereby supporting the idea of centralization of pancreatic resectional surgery. To date there has been no collective attempt from India at addressing this issue. This cohort study analysed peri-operative outcomes after pancreatoduodenectomy (PD) at seven major Indian centres.

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Introduction: Gallbladder torsion is a rare entity, which is often difficult to diagnose preoperatively. Since its first description in 1898 by Wendel, there have been over 500 documented cases in the literature. It is defined as rotation of the gallbladder on its mesentery along the axis of the cystic duct and cystic artery.

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Background: Combinations of a third-generation cephalosporin and metronidazole, with or without an aminoglycoside, often are used for the treatment of intra-abdominal infections in surgical settings. Simpler regimens that preserve an adequate spectrum of coverage, but allow easier administration and have fewer side effects, may be a more desirable option.

Methods: This randomized, open-label, active comparator study evaluated the effectiveness (non-inferiority hypothesis) of the beta-lactam/beta-lactamase inhibitor combination cefoperazone-sulbactam (2-8 g/day), compared with ceftazidime (2-6 g/day)-amikacin (15 mg/kg/day)-metronidazole (500 mg three times daily) in 154 and 152 subjects, respectively, having intra-abdominal infections.

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Background/aims: Radiofrequency has been used recently for bloodless liver resection. We studied the safety and feasibility of using RF energy for liver parenchymal transection in 8 patients.

Methodology: We performed eight (n=8) open RF assisted liver resection for various malignancies.

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Transitional cell carcinoma arises from the lining of the urogenital tract and ovary. We report a 39-year-old lady with transitional cell carcinoma of the spleen that presented as a complex cystic lesion. Exhaustive search for another primary was negative.

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Background: Orally administered gastrografin has been used for early resolution of postoperative small bowel obstruction (POSBO) and to reduce the need for surgery in various studies. However the studies have reported conflicting results as patients with complete obstruction and equivocal diagnosis of bowel strangulation were also included.

Patients And Methods: We carried out a prospective study to evaluate the efficacy of gastrografin in patients with partial adhesive small bowel obstruction.

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Context: Unresectable pancreatic cancer has a dismal prognosis. Palliative surgery and chemo-radiotherapy have not produced significant improvement in survival. We evaluated the safety and the efficacy of radiofrequency ablation for cytoreduction of unresectable tumors of the pancreas.

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Background: Sclerosing pancreatitis is an autoimmune condition characterized by periductal lymphocytic infiltration on histology, and elevated serum auto-antibodies and IgG4. Bile duct involvement is often associated with sclerosing pancreatitis but it is rarely the dominant feature.

Case Report: We report a patient with dominant biliary stricture and obstructive jaundice associated with IgG4 negative autoimmune pancreatitis.

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Context: Squamous cell carcinoma of the biliary tree is rare. Although few cases of squamous cell carcinoma of the intrahepatic bile-duct and gallbladder have been reported, until today, only four cases of squamous cell carcinoma of the extrahepatic bile duct have been reported in the literature.

Case Report: We present a case of squamous cell carcinoma of the distal common bile duct presenting with obstructive jaundice in a 60-year-old male which was successfully managed by a Whipple's pancreaticoduodenectomy.

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