Obesity, Insulin Resistance, and Metabolic Syndrome: A Study in WNINOb Rats from a Pancreatic Perspective
Joint Authors
Venkatesan, Vijayalakshmi
Madhira, Soundarya L.
Malakapalli, Venkata M.
Chalasani, Maniprabha
Shaik, Sarfaraz N.
Seshadri, Vasudevan
Kodavalla, Venkaiah
Bhonde, Ramesh R.
Nappanveettil, Giridharan
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-15
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
Alterations in pancreatic milieu to adapt to physiological shifts occurring in conditions of obesity and metabolic syndrome (MS) have been documented, though mechanisms leading to such a state have remained elusive so far.
The data presented here tries to look at the gravity of metabolic insult during the early and prolonged phases of obesity/insulin resistance (IR) depicted in WNIN/Ob strain of rats—an obese euglycemic mutant rat model developed indigenously at our institute which is highly vulnerable for a variety of degenerative diseases.
The present results in situ show the participation of several confounding factors in the pancreatic milieu that collectively coprecipitates for a state of profound inflammation in the pancreas (among Mutant compared to Lean/Control) which gets worsened with age.
These include hypertrophy, macrophage infiltration (CD11b/TNFα/IL6), apoptosis, β-cell vacuolation, hyperinsulinemia (HI), and stress markers (RL-77/HSP104/TBARS) all of which correlated well with indices for obesity (2-3 fold), IR (1.5-3 fold), and HI (2-3 fold).
Further, supportive data was also obtained from in vitro studies using islet cell cultures amongst phenotypes.
Taken together, these results advocate that inflammation was the major precipitating factor to cause islet cell dysfunctions (in situ and in vitro) in these Mutant rats compared to their Lean littermates and parental Control.
American Psychological Association (APA)
Venkatesan, Vijayalakshmi& Madhira, Soundarya L.& Malakapalli, Venkata M.& Chalasani, Maniprabha& Shaik, Sarfaraz N.& Seshadri, Vasudevan…[et al.]. 2013. Obesity, Insulin Resistance, and Metabolic Syndrome: A Study in WNINOb Rats from a Pancreatic Perspective. BioMed Research International،Vol. 2013, no. 2013, pp.1-19.
https://search.emarefa.net/detail/BIM-1004729
Modern Language Association (MLA)
Venkatesan, Vijayalakshmi…[et al.]. Obesity, Insulin Resistance, and Metabolic Syndrome: A Study in WNINOb Rats from a Pancreatic Perspective. BioMed Research International No. 2013 (2013), pp.1-19.
https://search.emarefa.net/detail/BIM-1004729
American Medical Association (AMA)
Venkatesan, Vijayalakshmi& Madhira, Soundarya L.& Malakapalli, Venkata M.& Chalasani, Maniprabha& Shaik, Sarfaraz N.& Seshadri, Vasudevan…[et al.]. Obesity, Insulin Resistance, and Metabolic Syndrome: A Study in WNINOb Rats from a Pancreatic Perspective. BioMed Research International. 2013. Vol. 2013, no. 2013, pp.1-19.
https://search.emarefa.net/detail/BIM-1004729
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1004729