tirzepatide macular degeneration vision changes NEJM Editorial Fellow Katerina Lin, MD, unpacks the science behind a study on Ozempic and vision loss: GLP-1

Once activated by various types of stimuli, phosphorylated STAT3 translocate into the nucleus to initiate transcription via binding to the promoter sequence of target genes

When administered intranasaly, Melanotan Double dose is absorbed via the nasal mucosa into the bloodstream, where it interacts with melanocortin receptors

Oral semaglutide has a boxed warning concerning thyroid C-cell tumors, based on animal studies

Aliquots at the various time points after fecal slurry inoculation were collected and acidified with 2 mL 0.1N HCl (Sigma-Aldrich, 50%/50% v/v), centrifuged at 4 C at 900 g for 8 min, filter-sterilized in a 0.22-m cellulose acetate filter, and frozen at 80 C until performing the experiments for the determination of the amount of TMA in the fecal slurry supernatants

It mimics both GLP-1 and GIP hormones, which are naturally secreted by the intestines after a meal, to help regulate insulin levels and curb hunger