Data availability Data for this work is archived and publicly available upon request to the corresponding author
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Common causes of erectile dysfunction include: Vascular conditions atherosclerosis, hypertension, and diabetes can impair blood flow Neurological disorders multiple sclerosis, Parkinson's disease, or spinal injuries Hormonal imbalances low testosterone, thyroid disorders Psychological factors anxiety, depression, stress, relationship difficulties Medications certain antihypertensives (e.g., thiazide diuretics, some beta-blockers), antidepressants (particularly SSRIs), antipsychotics, and 5-alpha-reductase inhibitors Lifestyle factors smoking, excessive alcohol, obesity, sedentary behaviour According to NICE Clinical Knowledge Summary guidance, ED is often an early marker of cardiovascular disease, as the penile arteries are smaller than coronary vessels and may show atherosclerotic changes earlier
Key Takeaways AOD 9604 is a fragment of HGH (amino acids 176-191), not a complete hormone