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Bogacki-Rychlik W, Gawęda K, Bialy M. Neurophysiology of male sexual arousal-Behavioral perspective. Front Behav Neurosci 2024; 17:1330460. [PMID: 38333545 PMCID: PMC10851294 DOI: 10.3389/fnbeh.2023.1330460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/15/2023] [Indexed: 02/10/2024] Open
Abstract
In the presented review, we analyzed the physiology of male sexual arousal and its relation to the motivational aspects of this behavior. We highlighted the distinction between these processes based on observable physiological and behavioral parameters. Thus, we proposed the experimentally applicable differentiation between sexual arousal (SA) and sexual motivation (SM). We propose to define sexual arousal as an overall autonomic nervous system response leading to penile erection, triggered selectively by specific sexual cues. These autonomic processes include both spinal and supraspinal neuronal networks, activated by sensory pathways including information from sexual partner and sexual context, as well as external and internal genital organs. To avoid misinterpretation of experimental data, we also propose to precise the term "sexual motivation" as all actions performed by the individual that increase the probability of sexual interactions or increase the probability of exposition to sexual context cues. Neuronal structures such as the amygdala, bed nucleus of stria terminalis, hypothalamus, nucleus raphe, periaqueductal gray, and nucleus paragigantocellularis play crucial roles in controlling the level of arousal and regulating peripheral responses via specific autonomic effectors. On the highest level of CNS, the activity of cortical structures involved in the regulation of the autonomic nervous system, such as the insula and anterior cingulate cortex, can visualize an elevated level of SA in both animal and human brains. From a preclinical perspective, we underlie the usefulness of the non-contact erection test (NCE) procedure in understanding factors influencing sexual arousal, including studies of sexual preference in animal models. Taken together results obtained by different methods, we wanted to focus attention on neurophysiological aspects that are distinctly related to sexual arousal and can be used as an objective parameter, leading to higher translational transparency between basic, preclinical, and clinical studies.
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Affiliation(s)
| | | | - Michal Bialy
- Department of Experimental and Clinical Physiology, Laboratory of Centre for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
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Satariano M, Green O, Parekh N. Robotic-assisted seminal vesiculectomy for treatment of refractory hematospermia. Urol Case Rep 2023; 50:102541. [PMID: 37664535 PMCID: PMC10474577 DOI: 10.1016/j.eucr.2023.102541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/19/2023] [Accepted: 08/20/2023] [Indexed: 09/05/2023] Open
Abstract
Hematospermia is a common, but anxiety-provoking genitourinary condition. In instances without spontaneous resolution, pharmacologic intervention with a 5-alpha reductase inhibitor has been shown to be successful. In cases of refractory hematospermia, robotic-assisted laparoscopic seminal vesiculectomy may provide a definitive treatment option. A robotic-assisted bilateral seminal vesiculectomy was performed on a 42-year-old male with refractory painless hematospermia after failing conservative management. Three months post-operatively, the patient reported resolution of hematospermia after six ejaculations with no impact on erectile function. The robotic-assisted approach is safe and feasible with good functional outcomes and reduced morbidity.
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Affiliation(s)
- Matthew Satariano
- Northeast Ohio Medical University, 4209 St. Rt. 44, PO Box 95, Rootstown, OH, 44272, United States
| | - Olivia Green
- Cleveland Clinic Akron General, 1 Akron General Avenue, Akron, OH, 44307, United States
| | - Neel Parekh
- Cleveland Clinic Akron General, 1 Akron General Avenue, Akron, OH, 44307, United States
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Huang AC, Yeh TC, Wu NC, Yeh CY, Lin PH, Yeh KY. Protective Effects of Epigallocatechin Gallate for Male Sexual Dysfunction in Streptozotocin-Induced Diabetic Rats. Int J Mol Sci 2022; 23:ijms23179759. [PMID: 36077157 PMCID: PMC9456206 DOI: 10.3390/ijms23179759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/22/2022] [Accepted: 08/25/2022] [Indexed: 11/17/2022] Open
Abstract
Sexual dysfunction is a common problem for men with diabetes. Epigallocatechin gallate (EGCG) is known to ameliorate erectile function in aging rats. However, there has not yet been a report to evaluate its effects on diabetic male rat sexual behavior in the literature. In this study, we investigated the effects of EGCG on male sexual behavior in diabetic rats. Diabetic rats were induced by a single intraperitoneal injection of 65 mg/kg of streptozotocin. After streptozotocin injection for one week, animals were then orally treated with 40 mg/kg of EGCG or vehicle. Copulatory behavior and fasting blood glucose levels were recorded before treatment, as well as 7 and 14 days after treatment. Serum LH, testosterone, and PDE5a levels were measured by EIA assay after the last behavioral test. Data showed that diabetic rats who had diminished sexual functions demonstrated significantly increased latencies in mount, intromission, and ejaculation, as well as significant decreases in frequencies of intromission and ejaculation, compared to non-diabetic controls, indicating sexual function recovery. Lower blood glucose levels were also found in diabetic rats after EGCG treatment. Additionally, the lower LH and higher PDE5a levels in diabetic rats than controls were also noted. The findings declared that EGCG had a protective effect on male sexual behavior in diabetic rats.
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Affiliation(s)
- Andy C. Huang
- Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Department of Urology, Taipei City Hospital Ren-Ai Branch, Taipei 103212, Taiwan
| | - Ta-Chuan Yeh
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei 114201, Taiwan
| | - Nien-Chin Wu
- Department of Physical Therapy, HungKuang University, No. 1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung 43302, Taiwan
| | - Chien-Yu Yeh
- School of Nursing, National Defense Medical Center, Taipei 114201, Taiwan
| | - Pei-Hua Lin
- Department of Physical Therapy, HungKuang University, No. 1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung 43302, Taiwan
| | - Kuei-Ying Yeh
- Department of Physical Therapy, HungKuang University, No. 1018, Sec. 6, Taiwan Boulevard, Shalu District, Taichung 43302, Taiwan
- Correspondence: ; Tel.: +886-4-2631-8652 (ext. 3314); Fax: +886-4-2632-4105
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Distended Seminal Vesicles Are Involved in Specific Cerebral Sexual Arousal: A Pilot Study Using Functional Brain Imaging in Young Healthy Men. EUR UROL SUPPL 2022; 42:10-16. [PMID: 35911083 PMCID: PMC9334823 DOI: 10.1016/j.euros.2022.05.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2022] [Indexed: 11/21/2022] Open
Abstract
Background Objective Design, setting, and participants Outcome measurements and statistical analysis Results and limitations Conclusions Patient summary
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Seizert CA. The neurobiology of the male sexual refractory period. Neurosci Biobehav Rev 2018; 92:350-377. [DOI: 10.1016/j.neubiorev.2018.06.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 04/03/2018] [Accepted: 06/13/2018] [Indexed: 02/07/2023]
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MAT, a Novel Polyherbal Aphrodisiac Formulation, Enhances Sexual Function and Nrf2/HO-1 Pathway While Reducing Oxidative Damage in Male Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:8521782. [PMID: 29853975 PMCID: PMC5949178 DOI: 10.1155/2018/8521782] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/26/2018] [Indexed: 01/08/2023]
Abstract
Mucuna pruriens, Ashwagandha, and Tribulus terrestris are known as the enhancers for sexual health, functional activities, vitality, and longevity. These herbs had been widely used in the Ayurveda medicine as aphrodisiacs through the ages, and their efficacy was also verified separately in our previous publication. Therefore, the aim of this study was to determine the effects of Mucuna, Ashwagandha, and Tribulus complexes on sexual function in rats. Twenty-eight male rats allocated to four groups as follows: (i) negative control (C); (ii) positive control or sildenafil citrate treated group (5 mg/kg) (S); (iii) MAT1 (combination of 10 mg Mucuna (M) + 10 mg Ashwagandha (A) + 10 mg Tribulus (T)/kg BW); (iv) MAT 2 (20 mg Mucuna + 20 mg Ashwagandha + 20 mg Tribulus/kg BW). There was no significant difference found between the MAT1 and MAT2 groups while they showed significantly increased testosterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) levels when compared to the negative control. Significant increases in Nrf2/HO1 levels and decreases in NF-κB were detected in MAT groups similar to the decrease in serum and testis malondialdehyde (MDA) levels as compared to both controls. The sperm motility, count, and rate also significantly improved in both MAT groups, while ALT, AST, creatinine, ALP, and urea levels did not change in any of the groups. Oral consumption of MATs combination in male rats resulted in inhibition of NF-κB and MDA and also increased sex hormones with Nrf2-mediated HO-1 induction. MAT combinations may improve sexual functions by increasing levels of sexual hormones and regulation of NF-κB and Nrf2/HO-1 signaling pathways.
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Taniguchi H, Kawa G, Yoshida K, Takayasu K, Kinoshita H, Matsuda T. Relationship between volume of the seminal vesicles and sexual activity in middle-aged men. Andrologia 2016; 49. [DOI: 10.1111/and.12618] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/25/2016] [Indexed: 11/30/2022] Open
Affiliation(s)
- H. Taniguchi
- Department of Urology and Andrology; Kansai Medical University; Osaka Japan
| | - G. Kawa
- Department of Urology; Saiseikai Noe Hospital; Osaka Japan
| | - K. Yoshida
- Department of Urology and Andrology; Kansai Medical University; Osaka Japan
| | - K. Takayasu
- Department of Urology and Andrology; Kansai Medical University; Osaka Japan
| | - H. Kinoshita
- Department of Urology and Andrology; Kansai Medical University; Osaka Japan
| | - T. Matsuda
- Department of Urology and Andrology; Kansai Medical University; Osaka Japan
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Abstract
Radical cystectomy (RC) with pelvic lymph node dissection (PLND) followed by urinary diversion is the treatment of choice for muscle-invasive bladder cancer (BC) and non-invasive BC refractory to transurethral resection of the bladder (TUR-B) and/or intravesical instillation therapies. Since the morbidity and possible mortality of this surgery are relevant, care must be taken in the preoperative selection of patients for the various organ-sparing procedures (e.g., bladder-sparing, nerve sparing, seminal vesicle sparing) and various types of urinary diversion. The patient's performance status and comorbidities, along with individual tumor characteristics, determine possible surgical steps during RC. This individualized approach to RC in each patient can maximize oncological safety and minimize avoidable side effects, rendering 'standard' cystectomy a surgery of the past.
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Affiliation(s)
- Beat Roth
- Department of Urology, University of Bern, Bern, Switzerland
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Kiss B, Burkhard FC, Thalmann GN. Open radical cystectomy: still the gold standard for muscle invasive bladder cancer. World J Urol 2015; 34:33-9. [DOI: 10.1007/s00345-015-1729-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 11/05/2015] [Indexed: 12/01/2022] Open
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Salonia A. Phylogenetic continuum: sexuality over reproduction over sexuality over reproduction, and again and again! Eur Urol 2012; 62:863. [PMID: 22790291 DOI: 10.1016/j.eururo.2012.06.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Accepted: 06/19/2012] [Indexed: 10/28/2022]
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Fenner A. Surgery: a role for the seminal vesicles in sex drive and sexual activity in mice. Nat Rev Urol 2012; 9:294. [PMID: 22565363 DOI: 10.1038/nrurol.2012.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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