prohormones


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prohormones

Molecules that are split by enzymes to form hormones. Most are proteins of at least moderate size. Peptide hormones cannot be directly synthesized because cells cannot produce proteins below a particular size.

Prohormones

A physiologically inactive precursor of a hormone.
Mentioned in: Anabolic Steroid Use
References in periodicals archive ?
Studies in CKD patients have demonstrated that currently available over-the-counter and prescription vitamin D products cannot reliably raise blood vitamin D prohormone levels and effectively treat SHPT.
Androgens are essential prohormones for estrogen synthesis.
Prohormones are listed as permitted substances on the World Anti-Doping Agency (WADA) list.
Natriuretic peptide production can also be assessed by measuring the N-terminal fragments from their prohormones in plasma, because these fragments constitute stable markers in vitro and in vivo.
In contrast to other prohormones, proBNP does not contain a C-terminal-flanking region.
This report analyzes the worldwide markets for Sports and Fitness Nutrition in US$ Million by the following Product Segments: Foods and Drinks (Sports/Energy Bars, Sports/Energy Drinks, & Powders to Mix), and Supplements (Amino Acids/Derivatives, Herbal Products, Prohormones, Vitamins/Minerals, & Others).
Plasma measurements of cardiac-derived peptides and their prohormones are established markers of cardiac dysfunction, with normal concentrations excluding a diagnosis ofheart failure.
Anti-Doping Agency (USADA) confirmed the positives contained prohormones of the banned male sex hormone testosterone and said in an email to Reuters its investigation of Merritt s case was continuing.
The specific product segments analyzed are Foods and Drinks (Sports/Energy Bars, Sports/Energy Drinks, & Powders to Mix), and Supplements (Amino Acids/Derivatives, Herbal Products, Prohormones, Vitamins/Minerals, & Others).
A-type (atrial) natriuretic peptide (ANP) and B-type natriuretic peptide (BNP), and the amino-terminal fragments of their prohormones (NTproANP and NT-proBNP, respectively) (1, 2).
Physiologic and pathologic states leading to volume expansion and/or increased tension on cardiac myocytes lead to up-regulation of signals for the production and secretion of cardiac natriuretic prohormones, including A-, B-, and C-type natriuretic peptides (1).
INTRODUCTION, METHODOLOGY & PRODUCT DEFINITIONS Study Reliability and Reporting Limitations I-1 Disclaimers I-2 Data Interpretation & Reporting Level I-2 Quantitative Techniques & Analytics I-3 Product Segmentation and Scope of Study I-3 Foods and Drinks I-3 Sports/Energy Bars I-3 Sports/Energy Drinks I-4 Powders to Mix I-4 Supplements I-4 Amino Acids/Derivatives I-4 Herbal Products I-4 Prohormones I-4 Vitamins/Minerals I-4 Others I-4