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Related Concept Videos

Disorders of the Male Reproductive System01:20

Disorders of the Male Reproductive System

Men's health issues are increasingly recognized as significant, with several conditions posing common threats. Among these, testicular cancer is especially prevalent in younger men, particularly those aged 20 to 35 years. The disease often manifests as a painless mass in the testicles, sometimes accompanied by a sensation of heaviness or a dull ache.
Prostate disorders are another major concern. These conditions can impair urinary flow due to the prostate's location around the urethra. Symptoms...
Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors01:28

Treatment for Pulmonary Arterial Hypertension: Phosphodiesterase Inhibitors

Phosphodiesterase 5 (PDE5) inhibitors are potent enzymes that function to hydrolyze cyclic nucleotides to their corresponding 5' monophosphates. Their unique biochemical properties have been applied in treating Pulmonary Arterial Hypertension (PAH).
Among the PDE5 inhibitors, sildenafil (Revatio) stands out as a competitive and selective inhibitor. It operates by elevating cellular levels of cGMP and augmenting signaling through the cGMP-PKG pathway, promoting vasodilation. Upon oral...
Male Sexual Response: Erection & Ejaculation01:17

Male Sexual Response: Erection & Ejaculation

Sexual stimulation can take various forms, such as physical touch and visual or auditory cues. When this happens, the parasympathetic reflex in the sacral portion of the spinal cord is activated. This reflex stimulates the release of nitric oxide (NO), which then dilates the arterioles in the penis, increasing blood flow to the erectile tissues - the corpora cavernosa and corpus spongiosum.
The blood filling the erectile tissues compresses the veins, which helps to prevent blood from leaving...
Infertility in Males01:23

Infertility in Males

Male infertility affects millions of couples worldwide, arising from various factors that impact different stages of the reproductive process. An endocrine imbalance resulting from conditions like hypogonadism, Klinefelter syndrome, or pituitary disorders can disrupt hormone levels and reduce sperm production. Testicular defects, such as tumors, cryptorchidism, atrophic testes, abnormal sperm morphology, and low sperm count or motility, may arise due to genetic factors, structural...
Nursing Assessment of the Genitourinary System I: Health History01:21

Nursing Assessment of the Genitourinary System I: Health History

The genitourinary system is critical to maintaining fluid balance, waste elimination, and reproductive function. Nurses play a vital role in assessing this system, beginning with a thorough health history. This process involves gathering patient information, identifying risk factors, and recognizing symptoms of genitourinary disorders. Early detection is vital for timely interventions and management.1. Gathering Patient InformationA complete health history includes the patient’s personal,...
Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment01:08

Effect of Hepatic Disease on Pharmacokinetics: Dose Adjustments Due to Hepatic Impairment

Hepatic impairment, characterized by decreased liver function, does not uniformly mandate adjustments in drug dosage. Whether dosage modifications are necessary depends on various factors related to the drug's metabolism and elimination pathways. If a drug is primarily excreted via the kidneys and bypasses significant hepatic processing, if it undergoes minimal metabolic transformation in the liver, or if it is volatile and primarily expelled through the lungs, dose adjustments may not be...

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Embryonic mosaicism in severe male factor infertility is unrelated to sperm retrieval technique.

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Related Experiment Video

Updated: Jun 6, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
04:22

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

Medical implications of erectile dysfunction.

Boback M Berookhim1, Natan Bar-Chama

  • 1Department of Urology, Mount Sinai Medical Center, Mount Sinai School of Medicine, One Gustave L. Levy Place, Box 1272, New York, NY 10029, USA.

The Medical Clinics of North America
|November 25, 2010
PubMed
Summary

Erectile dysfunction (ED) is common in aging men and signals other health issues like heart disease. Early detection of ED can help manage these serious conditions and improve patient quality of life.

Related Experiment Videos

Last Updated: Jun 6, 2026

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
04:22

Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility

Published on: May 30, 2025

Area of Science:

  • Gerontology
  • Urology
  • Cardiology

Background:

  • Erectile dysfunction (ED) affects 52% of men aged 40-70.
  • ED is linked to cardiovascular disease, lower urinary tract symptoms, and testosterone deficiency.
  • These conditions significantly impact patient quality of life.

Purpose of the Study:

  • To describe the evidence linking ED to comorbid conditions.
  • To highlight the role of primary care practitioners in managing ED and associated diseases.
  • To emphasize ED as a marker for underlying health issues.

Main Methods:

  • Review of existing evidence on ED and its comorbidities.
  • Analysis of the impact of these conditions on patient quality of life.
  • Discussion of the clinical implications for primary care.

Main Results:

  • ED prevalence increases with age.
  • Strong associations exist between ED and cardiovascular disease, LUTS, and testosterone deficiency.
  • Addressing ED provides an opportunity for early intervention in related conditions.

Conclusions:

  • ED serves as an important clinical marker in aging men.
  • Primary care evaluation of ED can lead to the prevention of serious health consequences.
  • Timely management of ED and associated conditions is crucial for improving patient outcomes.