Growth Hormone Releasing Hormones and Peptides: Research History



Nelson Vergel, the founder of ExcelMale.com, ClinicOptimizers.com and DiscountedLabs.com, interviews Dr. Richard Walker about the history of research on GHRH and GHRPs.

Richard F. Walker, Ph.D., R.Ph is well known for having popularized Sermorelin, a growth hormone-releasing hormone. He received a BS in pharmacy from Rutgers University, an MS in biochemistry from New Mexico State University and a Ph.D. in physiology from Rutgers University.

He completed an internship in neuroanatomy/electrophysiology at Emory University College of Medicine, and postdoctoral fellowships in neuroendocrinology and neuropharmacology at Duke University College of Medicine (Center for the Study of Aging and Human Development) and the University of California, Berkeley, respectively.

Dr. Walker held tenured faculty positions at Clemson University (Department of Zoology) and the University of Kentucky, College of Medicine (Department of Anatomy and Molecular Biology/Sanders-Brown Research Center on Aging). He left academia for a brief hiatus in the pharmaceutical industry serving as Director of Toxicology at SmithKline Beecham Pharmaceutical Corp.

At the same time, he was also a research professor in the Department of Pharmacology at the Medical College of Pennsylvania and later at the University of South Florida (USF) College of Medicine. In addition to his research duties at USF, Walker served as Director for Research Compliance and also Director of USF CARES (Clinical Alliance for Research, Education, and Service).

He has been the recipient of many federal (NSF, NIH, DOD), state and local research grants and has published extensively towards understanding the cause of senescence and treating functional deficits associated with organismal aging.

Walker is currently Editor-in-Chief of Clinical Interventions in Aging, a source of evidence-based information for practitioners of age-management medicine published by Dove Medical Press and author of the book, “Why We Age: Insight into the cause of growing old” He is partner in ProSoma LLC which manufactures and distributes anti-aging products, and he also heads a private consulting company offering regulatory and scientific services to physicians and other health-care professionals.
 

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TRT Hormone Predictor Widget

TRT Hormone Predictor

Predict estradiol, DHT, and free testosterone levels based on total testosterone

⚠️ Medical Disclaimer

This tool provides predictions based on statistical models and should NOT replace professional medical advice. Always consult with your healthcare provider before making any changes to your TRT protocol.

ℹ️ Input Parameters

Normal range: 300-1000 ng/dL

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Understanding Your Hormones

Estradiol (E2)

A form of estrogen produced from testosterone. Important for bone health, mood, and libido. Too high can cause side effects; too low can affect well-being.

DHT

Dihydrotestosterone is a potent androgen derived from testosterone. Affects hair growth, prostate health, and masculinization effects.

Free Testosterone

The biologically active form of testosterone not bound to proteins. Directly available for cellular uptake and biological effects.

Scientific Reference

Lakshman KM, Kaplan B, Travison TG, Basaria S, Knapp PE, Singh AB, LaValley MP, Mazer NA, Bhasin S. The effects of injected testosterone dose and age on the conversion of testosterone to estradiol and dihydrotestosterone in young and older men. J Clin Endocrinol Metab. 2010 Aug;95(8):3955-64.

DOI: 10.1210/jc.2010-0102 | PMID: 20534765 | PMCID: PMC2913038

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