l carnitine risks L-carnitine, batch-testing, and the problem with self-prescription in elite sport. Oral L-carnitine achieves bioavailability of just 14–18% of the administered dose. In a well-nourished elite athlete with no deficiency, the evidence for L-Carnitine Liquid Supplement with l

The immediate post-operative result demonstrates improved facial harmony with a refined contour, enhanced structural support, and better nasal function

Browse the Peptides UK education library Dr Rimas Geiga Learn more about the clinics evidence-led approach to metabolism, ageing research and scientific health education

Recent studies demonstrate that SCFAs affect bone metabolism via the processes outlined ( Figure 2 ): Intestinal Epithelial Function and Mineral Absorption: SCFAs act on IECs to promote their development and differentiation, hence affecting the mechanical, chemical, immune, and biological barriers of the intestinal mucosa, regulating electrolyte exchange (such as between mineral ions and hydrogen ions), lowering luminal pH, and directly improving the absorption of minerals specially calcium (99, 100);Systemic Signaling via G protein-coupled receptors (GPCRs): Upon entering systemic circulation, SCFAs interact with GPCRs, influencing metabolism and function in peripheral tissues, including adipose tissue, skeletal muscle, bone, and liver (101);Epigenetic Regulation: SCFAs block histone deacetylases (HDACs), therefore contributing to the epigenetic regulation of gene expression, which may influence bone metabolism (102, 103);Modulation of Inflammatory Cytokines: SCFAs can modulate the production of inflammatory factors, therefore affecting bone remodeling (104)

Rhododendrol is reported to cause tyrosinase-dependent cytotoxicity to melanocytes, and RK might competitively bind, exerting cytotoxicity through tyrosinase-catalyzed oxidation to cytotoxic o-quinones as RK-quinone and DBL-quinone

doi: 10.1016/j.atherosclerosis.2024.119053