PMID- 16700901 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20070727 LR - 20200929 IS - 1743-7075 (Electronic) IS - 1743-7075 (Linking) VI - 3 DP - 2006 May 15 TI - Physiogenomic analysis of weight loss induced by dietary carbohydrate restriction. PG - 20 AB - BACKGROUND: Diets that restrict carbohydrate (CHO) have proven to be a successful dietary treatment of obesity for many people, but the degree of weight loss varies across individuals. The extent to which genetic factors associate with the magnitude of weight loss induced by CHO restriction is unknown. We examined associations among polymorphisms in candidate genes and weight loss in order to understand the physiological factors influencing body weight responses to CHO restriction. METHODS: We screened for genetic associations with weight loss in 86 healthy adults who were instructed to restrict CHO to a level that induced a small level of ketosis (CHO approximately 10% of total energy). A total of 27 single nucleotide polymorphisms (SNPs) were selected from 15 candidate genes involved in fat digestion/metabolism, intracellular glucose metabolism, lipoprotein remodeling, and appetite regulation. Multiple linear regression was used to rank the SNPs according to probability of association, and the most significant associations were analyzed in greater detail. RESULTS: Mean weight loss was 6.4 kg. SNPs in the gastric lipase (LIPF), hepatic glycogen synthase (GYS2), cholesteryl ester transfer protein (CETP) and galanin (GAL) genes were significantly associated with weight loss. CONCLUSION: A strong association between weight loss induced by dietary CHO restriction and variability in genes regulating fat digestion, hepatic glucose metabolism, intravascular lipoprotein remodeling, and appetite were detected. These discoveries could provide clues to important physiologic adaptations underlying the body mass response to CHO restriction. FAU - Ruano, Gualberto AU - Ruano G AD - Genomas, Inc, 67 Jefferson St, Hartford, CT 06106, USA. g.ruano@genomas.net FAU - Windemuth, Andreas AU - Windemuth A FAU - Kocherla, Mohan AU - Kocherla M FAU - Holford, Theodore AU - Holford T FAU - Fernandez, Maria Luz AU - Fernandez ML FAU - Forsythe, Cassandra E AU - Forsythe CE FAU - Wood, Richard J AU - Wood RJ FAU - Kraemer, William J AU - Kraemer WJ FAU - Volek, Jeff S AU - Volek JS LA - eng PT - Journal Article DEP - 20060515 PL - England TA - Nutr Metab (Lond) JT - Nutrition & metabolism JID - 101231644 PMC - PMC1479825 EDAT- 2006/05/17 09:00 MHDA- 2006/05/17 09:01 PMCR- 2006/05/15 CRDT- 2006/05/17 09:00 PHST- 2006/03/06 00:00 [received] PHST- 2006/05/15 00:00 [accepted] PHST- 2006/05/17 09:00 [pubmed] PHST- 2006/05/17 09:01 [medline] PHST- 2006/05/17 09:00 [entrez] PHST- 2006/05/15 00:00 [pmc-release] AID - 1743-7075-3-20 [pii] AID - 10.1186/1743-7075-3-20 [doi] PST - epublish SO - Nutr Metab (Lond). 2006 May 15;3:20. doi: 10.1186/1743-7075-3-20.