PMID- 17679049
OWN - NLM
STAT- MEDLINE
DCOM- 20071011
LR  - 20211203
IS  - 0899-9007 (Print)
IS  - 0899-9007 (Linking)
VI  - 23
IP  - 9
DP  - 2007 Sep
TI  - Migration and its impact on adiposity and type 2 diabetes.
PG  - 696-708
AB  - In this review, we discuss the impact of migration on the incidence and 
      prevalence of obesity and type 2 diabetes mellitus (T2DM) in different ethnic 
      groups and populations. We also analyze the determinants of such phenomena in 
      view of the global increase in the migration and escalating prevalence of obesity 
      and T2DM. The risk escalation of the obesity and T2DM followed a gradient, as 
      migrants (Blacks, Hispanics, Chinese, South Asians, etc.) became more affluent 
      and urbanized, indicating an important role of environmental factors. A stepwise 
      increase in the prevalence of obesity in Blacks along the path of migration (5% 
      in Nigeria, 23% in Jamaica, and 39% in the United States) is a classic example. 
      Furthermore, South Asian migrants, who are particularly predisposed to develop 
      insulin resistance and T2DM, showed nearly four times prevalence rates of T2DM 
      than rural sedentee populations. Similar observations were also reported in 
      intracountry migrants and resettled indigenous populations. The determinants were 
      found to include nutrition transition, physical inactivity, gene-environment 
      interaction, stress, and other factors such as ethnic susceptibility. However, 
      certain contradictory trends were also seen in some migrant communities and have 
      been explained by various phenomena such as healthy migrant effect, "salmon 
      bias", and adherence to traditional diets. A review of the evidence suggests a 
      critical role of environmental factors in conferring an increased risk of obesity 
      and T2DM. The important contributory factors to this phenomenon were 
      urbanization, mechanization, and changes in nutrition and lifestyle behaviors, 
      but the role of stress and as yet unknown factors remain to be determined.
FAU - Misra, Anoop
AU  - Misra A
AD  - Department of Diabetes and Metabolic Diseases, Fortis Hospital, New Delhi, India. 
      anoopmisra@metabolicresearchindia.com
FAU - Ganda, Om P
AU  - Ganda OP
LA  - eng
GR  - DK 60115-02/DK/NIDDK NIH HHS/United States
GR  - HL73168-02/HL/NHLBI NIH HHS/United States
PT  - Journal Article
PT  - Research Support, N.I.H., Extramural
PT  - Research Support, Non-U.S. Gov't
PT  - Review
PL  - United States
TA  - Nutrition
JT  - Nutrition (Burbank, Los Angeles County, Calif.)
JID - 8802712
SB  - IM
MH  - Adiposity/*physiology
MH  - Diabetes Mellitus, Type 2/*epidemiology/ethnology
MH  - Emigration and Immigration
MH  - *Ethnicity
MH  - Humans
MH  - Life Style
MH  - *Nutritional Physiological Phenomena
MH  - Obesity/*epidemiology/ethnology
MH  - Prevalence
MH  - Risk Factors
MH  - United States/epidemiology
RF  - 119
EDAT- 2007/08/07 09:00
MHDA- 2007/10/12 09:00
CRDT- 2007/08/07 09:00
PHST- 2006/11/16 00:00 [received]
PHST- 2007/06/08 00:00 [revised]
PHST- 2007/06/08 00:00 [accepted]
PHST- 2007/08/07 09:00 [pubmed]
PHST- 2007/10/12 09:00 [medline]
PHST- 2007/08/07 09:00 [entrez]
AID - S0899-9007(07)00185-2 [pii]
AID - 10.1016/j.nut.2007.06.008 [doi]
PST - ppublish
SO  - Nutrition. 2007 Sep;23(9):696-708. doi: 10.1016/j.nut.2007.06.008.