BACKGROUND: Genome-wide association and linkage studies have identified multiple susceptibility loci for obesity. OBJECTIVE: We hypothesized that such loci may affect weight loss and comorbidity amelioration outcomes following a gastric-bypass. DESIGN: A total of 200 obese patients who underwent a gastric bypass surgery were genotyped for single-nucleotide polymorphisms (SNPs) in insulin induced gene 2 (INSIG2) and melanocortin 4 receptor (MC4R) obesity genes. RESULTS: After a follow-up of 18 month, the patients (192) data of weight excess loss (72%) and co-morbidities (Hypertension -62- and Diabetes -39-) were analyzed and compared. 26 Patients with SNP were found (9 MC4R and 17 INSIG2). No significant differences in weight excess loss and amelioration of comorbidities were revealed. CONCLUSIONS: The data suggest no influence of weight excess loss and amelioration of co-morbidities after gastric-bypass by genetic susceptibility.
BACKGROUND: Genome-wide association and linkage studies have identified multiple susceptibility loci for obesity. OBJECTIVE: We hypothesized that such loci may affect weight loss and comorbidity amelioration outcomes following a gastric-bypass. DESIGN: A total of 200 obesepatients who underwent a gastric bypass surgery were genotyped for single-nucleotide polymorphisms (SNPs) in insulin induced gene 2 (INSIG2) and melanocortin 4 receptor (MC4R) obesity genes. RESULTS: After a follow-up of 18 month, the patients (192) data of weight excess loss (72%) and co-morbidities (Hypertension -62- and Diabetes -39-) were analyzed and compared. 26 Patients with SNP were found (9 MC4R and 17 INSIG2). No significant differences in weight excess loss and amelioration of comorbidities were revealed. CONCLUSIONS: The data suggest no influence of weight excess loss and amelioration of co-morbidities after gastric-bypass by genetic susceptibility.
Authors: Michael B Mumphrey; Zheng Hao; R Leigh Townsend; Laurel M Patterson; Christopher D Morrison; Heike Münzberg; Nicholas Stylopoulos; Jianping Ye; Hans-Rudolf Berthoud Journal: Obesity (Silver Spring) Date: 2014-05-02 Impact factor: 5.002
Authors: Marcus Bandstein; Sarah Voisin; Emil K Nilsson; Bernd Schultes; Barbara Ernst; Martin Thurnheer; Christian Benedict; Jessica Mwinyi; Helgi B Schiöth Journal: Obes Surg Date: 2016-09 Impact factor: 4.129