Literature DB >> 1781784

Effects of thiamine deficiency on the biosynthesis of insulin in rats.

P Rathanaswami1, R Sundaresan.   

Abstract

The effect of thiamine deficiency on insulin biosynthesis was studied. In thiamine deficient rats the total pancreatic protein content was not altered when compared to control rats whereas the pancreatic insulin content was decreased. Though the in vivo incorporation of 3H-leucine and the in vivo conversion of U-14C-glucose into proinsulin and insulin were not affected in thiamine deficient rats, the tolbutamide induced increased in vivo incorporation of 3H-leucine and in vivo conversion of U-14C-glucose into proinsulin and insulin was not seen in thiamine deficient rats. These results suggest that the biosynthesis of insulin is impaired in thiamine deficiency. Even tolbutamide could not increase the biosynthesis of insulin in this condition.

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Year:  1991        PMID: 1781784

Source DB:  PubMed          Journal:  Biochem Int        ISSN: 0158-5231


  14 in total

1.  Chronic alcohol exposure affects pancreatic acinar mitochondrial thiamin pyrophosphate uptake: studies with mouse 266-6 cell line and primary cells.

Authors:  Padmanabhan Srinivasan; Svetlana Nabokina; Hamid M Said
Journal:  Am J Physiol Gastrointest Liver Physiol       Date:  2015-08-27       Impact factor: 4.052

2.  Further studies on erythrocyte thiamin transport and phosphorylation in seven patients with thiamin-responsive megaloblastic anaemia.

Authors:  G Rindi; C Patrini; U Laforenza; H Mandel; M Berant; M B Viana; V Poggi; A N Zarra
Journal:  J Inherit Metab Dis       Date:  1994       Impact factor: 4.982

3.  Relative contribution of THTR-1 and THTR-2 in thiamin uptake by pancreatic acinar cells: studies utilizing Slc19a2 and Slc19a3 knockout mouse models.

Authors:  Veedamali S Subramanian; Sandeep B Subramanya; Hamid M Said
Journal:  Am J Physiol Gastrointest Liver Physiol       Date:  2011-12-22       Impact factor: 4.052

4.  Adaptive regulation of pancreatic acinar mitochondrial thiamin pyrophosphate uptake process: possible involvement of epigenetic mechanism(s).

Authors:  Subrata Sabui; Veedamali S Subramanian; Rubina Kapadia; Hamid M Said
Journal:  Am J Physiol Gastrointest Liver Physiol       Date:  2017-07-20       Impact factor: 4.052

5.  Mechanisms involved in the inhibitory effect of chronic alcohol exposure on pancreatic acinar thiamin uptake.

Authors:  Padmanabhan Srinivasan; Veedamali S Subramanian; Hamid M Said
Journal:  Am J Physiol Gastrointest Liver Physiol       Date:  2014-02-13       Impact factor: 4.052

6.  Effects of combined dietary chromium(III) propionate complex and thiamine supplementation on insulin sensitivity, blood biochemical indices, and mineral levels in high-fructose-fed rats.

Authors:  Ewelina Król; Zbigniew Krejpcio; Sławomir Michalak; Rafał W Wójciak; Paweł Bogdański
Journal:  Biol Trace Elem Res       Date:  2012-10-16       Impact factor: 3.738

7.  Inhibition of pancreatic acinar mitochondrial thiamin pyrophosphate uptake by the cigarette smoke component 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone.

Authors:  Padmanabhan Srinivasan; Edwin C Thrower; Fred S Gorelick; Hamid M Said
Journal:  Am J Physiol Gastrointest Liver Physiol       Date:  2016-03-17       Impact factor: 4.052

8.  Pancreatic beta cells and islets take up thiamin by a regulated carrier-mediated process: studies using mice and human pancreatic preparations.

Authors:  Lisa Mee; Svetlana M Nabokina; V Thillai Sekar; Veedamali S Subramanian; Kathrin Maedler; Hamid M Said
Journal:  Am J Physiol Gastrointest Liver Physiol       Date:  2009-05-07       Impact factor: 4.052

9.  Effect of bacterial flagellin on thiamin uptake by human and mouse pancreatic acinar cells: inhibition mediated at the level of transcription of thiamin transporters 1 and 2.

Authors:  Padmanabhan Srinivasan; Kasin Yadunandam Anandam; Vignesh Ramesh; Erica T Geltz; Hamid M Said
Journal:  Am J Physiol Gastrointest Liver Physiol       Date:  2019-03-28       Impact factor: 4.871

10.  Proinflammatory cytokines inhibit thiamin uptake by human and mouse pancreatic acinar cells: involvement of transcriptional mechanism(s).

Authors:  Kasin Yadunandam Anandam; Padmanabhan Srinivasan; Tomoya Yasujima; Saleh Al-Juburi; Hamid M Said
Journal:  Am J Physiol Gastrointest Liver Physiol       Date:  2020-11-04       Impact factor: 4.052

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