A series of 3-arylpropionylpiperazines were synthesized as antagonists of the melanocortin-4 receptor. Their potency was found to be increased by replacing the alpha-methyl substituent of the initial lead 11 with a larger s-Bu or i-Bu group. Further potency enhancement was observed when a glycine or beta-alanine was incorporated onto the benzylamine. Some compounds demonstrated good potency, moderate selectivity, and oral bioavailability.
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http://dx.doi.org/10.1016/j.bmcl.2006.05.088 | DOI Listing |
Front Nutr
December 2024
Faculty of Medicine, Diabetes Center, University of Geneva, Geneva, Switzerland.
The prevalence of obesity is increasing worldwide, affecting both children and adults. This obesity epidemic is mostly driven by an increase in energy intake (abundance of highly palatable energy-dense food and drinks) and to a lesser degree a decrease in energy expenditure (sedentary lifestyle). A small proportion of individuals with obesity are affected by genetic forms of obesity, which often relate to mutations in the leptin-melanocortin pathway or are part of syndromes such as the Bardet-Biedl syndrome.
View Article and Find Full Text PDFNeuroImmune Pharm Ther
September 2024
Cognitive and Neural Science Program, Department of Psychology, Barnwell College, University of South Carolina, Columbia, SC, USA.
Obesity, by any standard, is a global health crisis. Both genetic and dietary contributions to the development and maintenance of obesity were integral factors of our experimental design. As mutations of the melanocortin 4 receptors (MC4R) are the leading monogenetic cause of obesity, MC4R haploinsufficient rats were fed a range of dietary fat (0-12 %) in a longitudinal design.
View Article and Find Full Text PDFInt J Obes (Lond)
December 2024
Department of Pediatrics, Yale School of Medicine, New Haven, CT, USA.
Background: Rare variants in melanocortin 4 receptor gene (MC4R) result in a severe form of early-onset obesity; however, it is unclear how these variants may affect abdominal fat distribution, intrahepatic fat accumulation, and related metabolic sequelae.
Methods: Eight hundred seventy-seven youth (6-21 years) with overweight/obesity, recruited from the Yale Pediatric Obesity Clinic in New Haven, CT, underwent genetic analysis to screen for functionally damaging, rare variants (MAF < 0.01) in MC4R.
Brain Behav Immun
December 2024
Department of Geriatrics, University Medical Center Goettingen, Robert-Koch-Str. 42, 37075 Goettingen, Germany; DZHK (German Center for Cardiovascular Research), Partner Site Göttingen, 37075 Göttingen, Germany. Electronic address:
Obesity, a pandemic, worldwide afflicts almost one billion people. Obesity and ageing share several pathological pathways leading to neurological disorders. However, due to a lack of suitable animal models, the long-term effects of obesity on age-related disorders- cognitive impairment and dementia have not yet been thoroughly investigated.
View Article and Find Full Text PDFLife Sci
January 2025
Biochemistry Department, Faculty of Pharmacy, Mansoura University, Egypt. Electronic address:
Obesity and its associated intestinal inflammatory responses represent a significant global challenge. (IF) is a dietary intervention demonstrating various health benefits, including weight loss, enhanced metabolic health, and increased longevity. However, its effect on the intestinal inflammation induced by high-fat diet (HFD) is still not fully comprehended.
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