Adipose tissue acts as an endocrine organ producing adipocytokines to regulate

insulin signaling, vascular tone, carbohydrate and lipid metabolism, and the inflammatory response. Dysregulation of certain adipocytokines can contribute to insulin resistance, amplified systemic inflammation and lead to the development of Metabolic Syndrome and hypertension [6]. For example, plasma levels of adiponectin have been reported to be significantly reduced www.selleckchem.com/small-molecule-compound-libraries.html in obese humans [7] and in patients with type-2 diabetes mellitus, hypertension and metabolic syndrome [8–11]. Alternative methods to aid weight loss include meal replacement preparations, and nutritional supplements such as vitamins, mineral, and botanicals. Raspberry ketone is Y-27632 mouse an ingredient found in raspberries (Rubus idaeus) that may have weight loss potential given preliminary findings in rodents and cell cultures, i.e. prevention of weight gain during a high-fat diet, and enhanced norepinephrine-lipolysis, increased adiponectin expression, and translocation of hormone-sensitive lipase in adipocytes [12, 13]. To date, however,

the effects of raspberry ketone in humans remain unexplored. Many weight loss supplements include caffeine and capsaicin since they are known to increase energy expenditure by up to 13% and have been proposed to counteract the decrease in metabolic rate that often accompanies weight loss [14]. In humans, oral ingestion of certain capsaicinoids, (active component of chilli peppers from the genus Capsicum) has been shown to increase energy expenditure, lipolysis and fat oxidation [15], activate brown adipose tissue [16] and stimulate the systemic release of norepinephrine [15, 17]. Bioactive compounds found in the rhizomes of ginger (Zingiber officinale) and garlic (Allium sativum) extracts oxyclozanide have been shown to influence many key features of the metabolic syndrome by modulating adipocytokine secretion from adipose tissue, reducing body fat accumulation,

decreasing circulating insulin and markers of systemic inflammation in murine and cell culture models, with similar findings emerging from studies in humans [18–21]. Extracts of Citrus aurantium, standardized for p-synephrine and other bioactive amines have been shown to increase resting metabolic rate and enhance weight loss in human clinical trials [22]. Prograde Metabolism™ (METABO) is a multi-ingredient dietary supplement that contains primarily raspberry ketone, caffeine, capsaicin, garlic, ginger and Citrus aurantium and is suggested to be used in combination with an exercise and nutrition program. The purpose of this study was to determine the safety and efficacy of METABO as an adjunct to an 8-week weight loss program. Primary endpoints included determination of the effect of this product on body composition and various anthropometric measures.