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Ethnic Differences in the Relationship Between Insulin Sensitivity and Insulin Response A systematic review and meta-analysis

Kodama, Keiichi; Tojjar, Damon LU ; Yamada, Satoru; Toda, Kyoko; Patel, Chirag J. and Butte, Atul J. (2013) In Diabetes Care 36(6). p.1789-1796
Abstract
OBJECTIVE-Human blood glucose levels have likely evolved toward their current point of stability over hundreds of thousands of years. The robust population stability of this trait is called canalization. It has been represented by a hyperbolic function of two variables: insulin sensitivity and insulin response. Environmental changes due to global migration may have pushed some human subpopulations to different points of stability. We hypothesized that there may be ethnic differences in the optimal states in the relationship between insulin sensitivity and insulin response. RESEARCH DESIGN AND METHODS-We identified studies that measured the insulin sensitivity index (S-I) and acute insulin response to glucose (AIR(g)) in three major ethnic... (More)
OBJECTIVE-Human blood glucose levels have likely evolved toward their current point of stability over hundreds of thousands of years. The robust population stability of this trait is called canalization. It has been represented by a hyperbolic function of two variables: insulin sensitivity and insulin response. Environmental changes due to global migration may have pushed some human subpopulations to different points of stability. We hypothesized that there may be ethnic differences in the optimal states in the relationship between insulin sensitivity and insulin response. RESEARCH DESIGN AND METHODS-We identified studies that measured the insulin sensitivity index (S-I) and acute insulin response to glucose (AIR(g)) in three major ethnic groups: Africans, Caucasians, and East Asians. We identified 74 study cohorts comprising 3,813 individuals (19 African cohorts, 31 Caucasian, and 24 East Asian). We calculated the hyperbolic relationship using the mean values of SI and AIRg in the healthy cohorts with normal glucose tolerance. RESULTS-We found that Caucasian subpopulations were located around the middle point of the hyperbola, while African and East Asian subpopulations are located around unstable extreme points, where a small change in one variable is associated with a large nonlinear change in the other variable. CONCLUSIONS-Our findings suggest that the genetic background of Africans and East Asians makes them more and differentially susceptible to diabetes than Caucasians. This ethnic stratification could be implicated in the different natural courses of diabetes onset. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Diabetes Care
volume
36
issue
6
pages
1789 - 1796
publisher
American Diabetes Association
external identifiers
  • wos:000321472600056
  • scopus:84878252359
ISSN
1935-5548
DOI
10.2337/dc12-1235
language
English
LU publication?
yes
id
939f4565-103f-4ceb-8af7-d453bfa148ef (old id 3979170)
date added to LUP
2013-09-02 07:32:07
date last changed
2019-10-13 03:45:55
@article{939f4565-103f-4ceb-8af7-d453bfa148ef,
  abstract     = {OBJECTIVE-Human blood glucose levels have likely evolved toward their current point of stability over hundreds of thousands of years. The robust population stability of this trait is called canalization. It has been represented by a hyperbolic function of two variables: insulin sensitivity and insulin response. Environmental changes due to global migration may have pushed some human subpopulations to different points of stability. We hypothesized that there may be ethnic differences in the optimal states in the relationship between insulin sensitivity and insulin response. RESEARCH DESIGN AND METHODS-We identified studies that measured the insulin sensitivity index (S-I) and acute insulin response to glucose (AIR(g)) in three major ethnic groups: Africans, Caucasians, and East Asians. We identified 74 study cohorts comprising 3,813 individuals (19 African cohorts, 31 Caucasian, and 24 East Asian). We calculated the hyperbolic relationship using the mean values of SI and AIRg in the healthy cohorts with normal glucose tolerance. RESULTS-We found that Caucasian subpopulations were located around the middle point of the hyperbola, while African and East Asian subpopulations are located around unstable extreme points, where a small change in one variable is associated with a large nonlinear change in the other variable. CONCLUSIONS-Our findings suggest that the genetic background of Africans and East Asians makes them more and differentially susceptible to diabetes than Caucasians. This ethnic stratification could be implicated in the different natural courses of diabetes onset.},
  author       = {Kodama, Keiichi and Tojjar, Damon and Yamada, Satoru and Toda, Kyoko and Patel, Chirag J. and Butte, Atul J.},
  issn         = {1935-5548},
  language     = {eng},
  number       = {6},
  pages        = {1789--1796},
  publisher    = {American Diabetes Association},
  series       = {Diabetes Care},
  title        = {Ethnic Differences in the Relationship Between Insulin Sensitivity and Insulin Response A systematic review and meta-analysis},
  url          = {http://dx.doi.org/10.2337/dc12-1235},
  volume       = {36},
  year         = {2013},
}