Serum butyrylcholinesterase in type 2 diabetes mellitus: a biochemical and bioinformatics approach

Sridhar Gr, Nirmala G, Apparao Allam, Madhavi As, Sreelatha S, Rani, Vijayalakshmi, Vijayalakshmi P

Description

Butyrylcholinesterase is an enzyme that may serve as a marker of metabolic syndrome. We (a) measured its level in persons with diabetes mellitus, (b) constructed a family tree of the enzyme using nucleotide sequences downloaded from NCBI. Butyrylcholinesterase was estimated colorimetrically using a commercially available kit ( Randox Lab, UK ). Phylogenetic trees were constructed by distance method ( Fitch and Margoliash method) and by maximum parsimony method. Results There was a negative correlation between serum total cholesterol and butyrylcholinesterase (-0.407; p < 0.05) and between serum LDL cholesterol and butyrylcholinesterase (-0.435; p < 0.05). There was no statistically significant correlation among the other biochemical parameters. In the evolutionary tree construction both methods gave similar trees, except for an inversion in the position of Sus scrofa (M62778) and Oryctolagus cuniculus (M62779) between Fitch and Margoliash, and maximum parsimony methods. Conclusion The level of butyrylcholinesterase enzyme was inversely related to serum cholesterol; dendrogram showed that the structures from evolutionarily close species were placed near each other.

Sujets

• Metabolic syndrome
• Diabetes mellitus type 2
• Dyslipidemia
• Phylogenetic tree

Informations

• Publié par: biomed
• Publié le: 01 janvier 2005
• Nombre de lectures: 14
• Langue: English

Extrait

Lipids in Health and Disease

BioMedCentral

Open Access Research Serum butyrylcholinesterase in type 2 diabetes mellitus: a biochemical and bioinformatics approach 2 21 11 GR Sridhar*, G Nirmala, Allam Apparao, AS Madhavi, S Sreelatha, J 1 1 Sudha Raniand P Vijayalakshmi

1 2 Address: Departmentof Computer Science and Systems Engineering, Andhra University, Visakhapatnam, India andEndocrine and Diabetes Centre, 151216 Krishnanagar, Visakhapatnam 530 002, India Email: GR Sridhar*  [e-mail]; G Nirmala  [e-mail]; Allam Apparao  [e-mail]; AS Madhavi  [e-mail]; S Sreelatha  [e-mail]; J Sudha Rani  [e-mail]; P Vijayalakshmi  [e-mail] * Corresponding author

Published: 08 September 2005Received: 03 August 2005 Accepted: 08 September 2005 Lipids in Health and Disease2005,4:18 doi:10.1186/1476-511X-4-18 This article is available from: http://www.lipidworld.com/content/4/1/18 © 2005 Sridhar et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

metabolic syndrometype 2 diabetesdyslipidemiaphylogenetic treeevolutionary distance

Abstract Background:Butyrylcholinesterase is an enzyme that may serve as a marker of metabolic syndrome. We (a) measured its level in persons with diabetes mellitus, (b) constructed a family tree of the enzyme using nucleotide sequences downloaded from NCBI. Butyrylcholinesterase was estimated colorimetrically using a commercially available kit (Randox Lab, UK). Phylogenetic trees were constructed by distance method (Fitch and Margoliashmethod) and bymaximum parsimony method. Results:There was a negative correlation between serum total cholesterol and butyrylcholinesterase (-0.407; p < 0.05) and between serum LDL cholesterol and butyrylcholinesterase (-0.435; p < 0.05). There was no statistically significant correlation among the other biochemical parameters. In the evolutionary tree construction both methods gave similar trees, except for an inversion in the position ofSus scrofa(M62778) andOryctolagus cuniculus (M62779) between Fitch and Margoliash, and maximum parsimony methods. Conclusion:The level of butyrylcholinesterase enzyme was inversely related to serum cholesterol; dendrogram showed that the structures from evolutionarily close species were placed near each other.

1. Introduction The enzyme butyrylcholinesterase (BChE; EC 3.1.1.1.8) has a welldefined pharmacologic function in hydrolyzing succinylcholine, a muscle relaxant used in anesthetic prac tice. It could have other roles, though much less well defined, such as modulating the phenotypic expression of

dyslipidemia and metabolic syndrome. Serum levels of the enzyme are affected by dietary fat, obesity, hyperlipi demia and diabetes mellitus [1].

With genomic sequences from many species being availa ble in the public domain [2], it is possible to annotate

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