• S Majumdar

      Articles written in Journal of Biosciences

    • Comparative study of major lipid constituents in human and monkey aorta

      Rajvir Dahiya S Majumdar N K Ganguly R N Chakravarti

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      The contents of total lipids, phospholipids, cholesterol, triglyceride and free fatty acid in intima and media of thoracic and abdominal segments of aorta from normal human subjects and rhesus monkeys were determined. An increase in total lipids in intima as compared to that of media was noted in both species. A comparison of lipid contents of thoracic and abdominal segments from both species revealed that abdominal segment contained significantly greater lipid. Further, human thoracic and abdominal aortic intima and media had higher content of cholesterol as compared to that of monkey aorta. The differences in lipid profile in aorta of these two species have been highlighted to provide a clue with respect to the differences in the prevalence and morphology of atherosclerosis as seen in monkey and man.

    • Comparative study of fatty acid composition in human and monkey aorta

      Rajvir Dahiya S Majumdar N K Ganguly R N Chakravarti

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      The fatty acid composition of thoracic and abdominal aortic intima and media of normal human subjects and rhesus monkeys has been studied. Significantly higher values of unsaturated fatty acids as compared to saturated fatty acids have been noted in the intima of monkey as compared to man. The fatty acid profile of the aortic wall in these two species has provided a probable biochemical basis for the lesser incidence of atherosclerosis in macaques.

    • Aortal collagen polymorphism in monkey and man

      Rajvir Dahiya N K Ganguly S Majumdar R N Chakravarti

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      Aortal collagen typing in monkey and man showed the presence of types I, HI and V in human aorta and types I and III in monkey aorta. Type III collagen was found to be a predominate type in both species. The molecular weight of type III collagen was similar in these species while type I collagen was different. Both monkey and human collagen types I and III were found to be immunogenic. Type I collagen was significantly increased while type III was decreased in human atherosclerotic plaque. Collagen typing in fatty streak remained unaltered.

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