Erectile Dysfunction
Erectile Dysfunction - Related Videos
04:22
Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
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Cited by 2 •
2025
An integrated treatment model for unconsummated marriage (UCM) due to psychogenic erectile dysfunction is presented, offering streamlined management from assessment to intervention. Emphasizing patient-centered care and communication, preliminary results show improved success rates and satisfaction, supporting its effectiveness in addressing infertility in UCM from the male perspective.
09:49
Isolation of Adipose Derived Regenerative Cells for the Treatment of Erectile Dysfunction Following Radical Prostatectomy
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Cited by 3 •
2021
Precise disclosure of methods and protocols is crucial for large scale uptake of stem cell therapies. Here, we present a protocol to isolate adipose-derived regenerative cells, used for a single intracavernous injection as treatment of erectile dysfunction (ED) following radical prostatectomy (RP).
09:39
Mapping Dysfunctional Protein-Protein Interactions in Disease
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2025
Here, we present a protocol to enable the capture and identification of disease-specific protein-protein interactions from native cells and tissues using chemical probes and mass spectrometry. The resulting interaction datasets are analyzed through a dedicated web-based platform to reveal dynamic network dysfunctions and pathway alterations linked to disease.
08:03
Intracavernosal Pressure Recording to Evaluate Erectile Function in Rodents
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Cited by 14 •
2018
Intracavernosal pressure recording (ICP) is an important method to evaluate the erectile function of experimental animals. Here, a detailed protocol is demonstrated for the recording procedure of ICP by catheterizing the crura penis and then electrically stimulating the cavernous nerves in rats.
06:26
Mouse Model of Metabolic Dysfunction-Associated Steatotic Liver Disease with Fibrosis
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Cited by 1 •
2025
Mouse model of metabolic dysfunction-associated steatotic liver disease (MASLD) with metabolic dysfunction, hepatic gene expression changes, and liver histopathological alterations that resemble human MASLD, including fibrosis that progresses to advanced fibrosis stage 3. This model can be used in studies of MASLD pathophysiology and in pre-clinical studies of new therapies.
FAQs
Sexual stimulation initiates parasympathetic signaling, which promotes nitric oxide release. Nitric oxide then raises cyclic guanosine monophosphate (cGMP) in penile smooth muscle. This signaling relaxes the muscle, allowing penile arteries and erectile tissue to fill with blood. If any step is impaired, the downstream blood-flow response may be insufficient for normal erectile function.
Blood flow is central, but it is not the only determinant. The erectile response depends on coordinated vascular relaxation, nerve signaling, hormonal influence, and functioning erectile tissue. Psychological factors can also contribute, so ED research considers how several biological and psychological domains interact rather than assigning every case to a single cause.
The nitric oxide-cGMP pathway matters because it links a neural signal to a physical vascular response. Parasympathetic activation and nitric oxide release precede increased cGMP, while cGMP-associated smooth-muscle relaxation supports blood filling in penile arteries and erectile tissue. This sequence gives researchers a biological framework for locating where impaired signaling may disrupt erectile function.
Phosphodiesterase-5 inhibitors are among the treatments evaluated in ED research. Studying their effects helps investigators connect a clinical outcome with the nitric oxide-cGMP signaling pathway and the relaxation of penile smooth muscle. Treatment research therefore does more than compare interventions: it examines how modifying a defined physiological process may influence blood filling and erectile performance.
A biological investigation can consider vascular physiology, nerve signaling, hormones, tissue function, and psychological influences together. This broad approach helps distinguish whether disrupted blood flow, communication between nerves and tissue, endocrine factors, or tissue performance best explains the observed problem. It also supports evaluation of treatments against several possible underlying contributors.
ED has relevance beyond sexual function because it may indicate broader cardiovascular or metabolic disease. That connection makes it valuable in health research: investigators can study erectile changes alongside vascular physiology and metabolic or cardiovascular conditions. The association also makes the symptom biologically informative rather than merely an isolated problem of sexual performance.