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Table 3 summarizes the interaction p -values and the results of adjusted linear regression models examining the relationship between serum vitamin B12 concentrations (pmol/L) and total testosterone levels (ng/dL) across different age groups and BMI categories for both males and females
Genetic factors affecting receptor expression or downstream signaling may limit effectiveness
Depot formulations : Encapsulating peptides in biodegradable polymer microspheres (e.g., PLGA) creates slow-release formulations that can extend effective duration to months, regardless of the peptide's intrinsic half-life
As we age, natural peptide levels decline
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