Gut hormones and appetite regulation.

Area of Science:

• Endocrinology
• Neuroscience
• Metabolic Research

Background:

• Gut hormones play a crucial role in the brain-gut axis, influencing appetite and body weight.
• Hormones like ghrelin (orexigenic) and GLP-1, GIP, CCK, PYY, OXM (anorexigenic) are key regulators.
• Recent findings indicate broader roles for gut hormones beyond appetite, affecting metabolic health and cognitive functions.

Purpose of the Study:

• To review the multifaceted effects of gut hormones on appetite regulation.
• To highlight recent advancements in understanding gut hormone actions and their therapeutic potential.
• To emphasize the impact of environmental factors on gut hormone signaling and weight management.

Main Methods:

• Literature review of recent human studies on gut hormones and appetite.
• Analysis of research on novel pharmacological agents targeting gut hormone receptors.
• Synthesis of data on environmental influences (diet, exercise, sleep) on gut hormone function.

Main Results:

• Gut hormones exhibit diverse actions across physiological systems, impacting more than just appetite.
• Environmental factors such as meal timing, diet composition, exercise, and sleep significantly modulate gut hormone activity.
• New drugs like retatrutide and orforglipron show efficacy in promoting weight loss and improving metabolic parameters by targeting gut hormone pathways.

Conclusions:

• Gut hormones are critical regulators of appetite and body weight, with significant therapeutic implications.
• Environmental factors interact with gut hormones, necessitating comprehensive study designs.
• Further large-scale, long-term research is required to fully elucidate the complex interplay of gut hormones, environment, and metabolic health.