Sexual dysfunction in dermatological diseases

Sexual dysfunctions in psoriatic patients

Introduction

Psoriasis is one the most common skin diseases associated with a great decrease in the quality of patients' lives.

Methods

We aimed to study sexual dysfunctions in psoriatic patients using the Female Sexual Function Index (FSFI) for women and the International Index of Erectile Function (IIEF) for men via an anonymous online survey. The study included 80 psoriatic patients and 75 controls without dermatoses.

Results

There was a downward trend in the total IIEF score in psoriatic men compared to controls. 58% of male patients and 76% of controls had a normal IIEF score. There was no significant difference in IIEF between patients treated and not with systemic agents. 62% of female patients had a decreased FSFI score, whereas in the control group, the majority of subjects (54%) had a normal FSFI score. There was no significant difference in FSFI score between patients and controls. Female patients treated with systemic antipsoriatic agents had significantly worse lubrication, satisfaction with sexual life, and pain.

Discussion

Our study has shown that the majority of questioned female psoriatic patients had sexual dysfunction according to FSFI, particularly they had worse satisfaction with sexual life and less sexual desire compared to women without psoriasis. The majority of male patients did not have sexual dysfunction according to IIEF, however, they had significantly worse overall satisfaction with sexual life and confidence to keep an erection. Systemic antipsoriatic treatment does not probably influence sexual dysfunctions in men but it does in women although we were not able to assess the severity or resolution of lesions after those treatments. However embarrassing, psoriatic patients should be questioned about their sexual lives by dermatologists, and more studies are needed to explore this matter.

Prevalence of Female Sexual Dysfunction Among Psoriatic Females: A Cross Sectional Case Controlled Study

INTRODUCTION

Sexual relationships are an integral part of females psychological and physiological wellbeing.

OBJECTIVES

The study aimed to identify prevalence and impact of Female Sexual Dysfunction (FSD) in women affected with psoriasis.

METHODS

This cross-sectional study was carried out on 150 married females who were interviewed to answer Female Sexual Function Index (FSFI) questionnaire and were divided into two groups: the first group included 100 female patients complaining of psoriasis (50 suffering from moderate psoriasis and 50 with severe psoriasis). The disease severity was graded according to the Psoriasis Area and Severity Index (PASI) while the second group included 50 age matched women who served as controls.

RESULTS

Female sexual dysfunction (FSD) in psoriasis female groups was higher than that in the control group (47%, 24%, P < 0.05). The mean total scores of FSFI ranged from 12.30 to 34.20 and were significantly lower in the severe PASI affected group (22.34 ± 5.35) when compared to moderate PASI group (26.24 ± 2.67) or control group (28.79 ± 2.22). In addition, total scores were significantly lower among moderate PASI affected females when compared to control group.

CONCLUSIONS

Sexual dysfunction should be routinely investigated in female patients with psoriasis in the case of moderate-severe disease due to its negative impact on quality of life. Further research over the effect of certain interventional programs on FSD should be considered for patients suffering from psoriasis.

Effect of Dupilumab on Sexual Desire in Adult Patients with Moderate to Severe Atopic Dermatitis

Background: Atopic dermatitis (AD) is a chronic inflammatory condition causing itching skin, with a significant psychosocial impact on patients and relatives. AD affects 15 to 30% of children and 2 to 10% of adults. AD significantly affects patients' quality of life (QoL) given the chronicity and symptoms of the disease. Most AD patients have reported that the disease affects daily life, resulting in limited social contact and a strong impact on sexual health (SH), especially in moderate-severe cases. Materials and methods: We performed a prospective study from 1 May 2020 to 1 May 2022; the aim of the study was to evaluate the impact of moderate to severe AD on sexual desire, seduction, and partner relationships, and describe how it varies following dupilumab therapy. We used the Sexual Desire Inventory-2 (SDI-2), a validated instrument consisting of 14 items; moreover, we used a second questionnaire with eight items, an unvalidated instrument created specifically for this study, to obtain the assessment of the influence of AD on the body image, sexuality, and self-perception of those affected. Results and Conclusions: The impact of AD on sexual desire assessed using SDI-2 showed a significant improvement in both sexes during dupilumab treatment from the baseline to W4 and W16. Similar results were obtained with our questionnaire.

Genital Self-Image, Sexual Function, and Quality of Life Among Individuals with Vulvar and Non-Vulvar Inflammatory Dermatoses

Vulvar inflammatory dermatoses (VID; e.g., lichen sclerosus, lichen planus, vulvar dermatitis) can significantly impact sexual function. Both vulvar and non-vulvar inflammatory dermatoses (NVID; i.e., skin conditions not impacting vulvar skin, such as non-genital psoriasis and eczema/dermatitis) have yet to be fully characterized with regard to impact on genital self-image. A 20-min web-based survey was distributed September-November 2020 through social media ads, support groups, and online research recruitment services. Individuals in the USA over age 18 who were assigned female at birth and self-reported having been diagnosed with an inflammatory dermatosis were eligible. The primary outcome was the Female Genital Self-Image Scale (FGSIS). Secondary outcomes included the Female Sexual Function Index (FSFI), the Skindex-16 (a skin-related quality of life measure), the PROMIS Global-10 (assessing global physical/mental health), and sexual behavior histories. Participants (n = 348) reported mean age of 43.1 ± 15.5 (range = 19-81). Nearly one-third (n = 101; 29.0%) reported VID, 173 (50%) had NVID, and 74 (21%) experienced both vulvar and non-vulvar symptoms; they were analyzed as part of the VID group. The mean FGSIS score among participants with VID was 16.9 ± 4.1 and was significantly (p < .01) lower than that of participants with NVID (M = 21.2 ± 4.3), indicating lower genital self-image. Mental health (as measured by PROMIS-Global 10) was also impaired in VID. Rates of sexual dysfunction were high in both groups (> 60%). Findings suggest that in VID, lower genital self-image is correlated with poorer sexual function, quality of life, and global physical and mental health. Additional recommendations for VID management are proposed.

Sexual Dysfunction and Atopic Dermatitis: A Systematic Review

Atopic dermatitis (AD) is a chronic inflammatory disease of the skin whose main symptom is pruritus and may affect all age ranges. Regarding the prevalence, it has been estimated at around 10% of the world population. Many concomitant diseases have been associated with AD, but the causal relationship between AD and psychological impairment has not been clearly established. Scientific literature studying the probable association between male or female sexual dysfunction and dermatological pathology is limited, even more so in AD. This systematic review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) reporting guidelines and the Cochrane Collaboration methodology for systematic reviews. All relevant articles in English were identified through a search from inception to 10 December 2020, including the following databases: Medline (via PubMed), Scopus, Web of Science Core Collection, and SciELO. The results of the search were compiled using the COVIDENCE software for systematic reviews. The methodological quality of the included studies was done using the “Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies” and the “Quality Assessment of Case-Control Studies” developed by the National Heart, Lung, and Blood Institute, National Institutes of Health (NIH). Our search yielded potentially relevant studies. Five studies that evaluated the prevalence of sexual dysfunction in atopic dermatitis were retrieved after applying the selection criteria. The present systematic review achieved data from 8088 patients with atopic dermatitis from four articles. Sample sizes for atopic dermatitis patients ranged from 266 to 3997. We identified one cohort study with four years of follow-up, three studies with a cross-sectional design, and one case-control study. Three studies reported data disaggregated by the severity of atopic dermatitis. Two studies included healthy controls with a total sample size of 1,747,755 subjects. Two studies compared data with other dermatological conditions such as psoriasis. In conclusion, we can establish that unlike other psychological comorbidities such as anxiety and depression, sexual dysfunction is a field scarcely explored in the literature. This sexual dysfunction focuses on the male sex in large population studies and in clinical diagnoses without exploring it through specific and validated questionnaires in this regard. Further studies focused on both genders are needed. It is important to correlate this sexual dysfunction with the severity of the disease, previous treatments, and cardiovascular comorbidities.

Sexual dysfunction in a cohort of patients with moderate-to-severe atopic dermatitis. Influence of dupilumab treatment

INTRODUCTION

Atopic dermatitis is a systemic and immune-mediated dermatological disease that comprises a wide group of physiological and psychological comorbidities. Within the latter, the evaluation of anxiety and depression has been the subject of numerous studies, but sexual dysfunction (SD) is a fact that is rarely addressed in the literature. The objective of the present study is to assess the prevalence of SD in a cohort of patients with moderate-to-severe atopic dermatitis (AD) and to establish the possible impact of dupilumab therapy on it.

MATERIAL AND METHODS

A cross-sectional study was performed. Recruited patients had been diagnosed with moderate-to-severe AD at the Dermatology Unit of the Hospital Universitario San Cecilio, Granada, Spain, from July 1, 2019, through June 30, 2020. They were followed up for a 6-month period during which the impact of dupilumab treatment was measured. The main variable under study, sexual dysfunction, was evaluated differently according to gender. Regarding the male patients, the International Index Erectile Function (IIEF-5) was applied, whereas for female patients, the questionnaire "Female Sexual Function Index" was used.

RESULTS

Our study included 31 patients, 18 men and 13 women. Men's mean age was 35 +/- 14.55 years, while that of women was 33 +/- 10.46 years. Seventy-nine percent of patients in our series (n = 22) had SD compared to 29% (n = 9) who did not. A total of 66.9% of males and 76.9% (n = 10) of females sampled, suffered from SD. Six months after initiation of treatment, none of the patient had stopped it due to efficacy or safety issues. All severity indices (SCORAD, EASI, VAS pruritus, and DLQI) had significantly improved by more than 50% from baseline. The improvement in the sexual dysfunction index had improved by four points, both in the male and female patients.

DISCUSSION

Many large population studies on SD in patients with moderate-to-severe atopic AD only focus on male gender and clinical diagnoses, rather than specific and validated questionnaires. Dupilumab treatment in patients with moderate-to-severe AD has shown a positive impact on the levels of SD in both male and female populations. Further studies focused on populations with mild atopic AD and with larger sample sizes are required to corroborate these preliminary results.

The Inflammation Network in the Pathogenesis of Erectile Dysfunction: Attractive Potential Therapeutic Targets

BACKGROUND

Erectile dysfunction (ED) is an evolving health problem in the aging male population. Chronic low-grade inflammation is a critical component of ED pathogenesis and a probable intermediate stage of endothelial dysfunction, especially in metabolic diseases, with the inclusion of obesity, metabolic syndrome, and diabetes.

OBJECTIVE

This review will present an overview of preclinical and clinical data regarding common inflammatory mechanisms involved in the pathogenesis of ED associated with metabolic diseases and the effect of antiinflammatory drugs on ED.

METHODS

A literature search of existing pre-clinical and clinical studies was performed on databases [Pubmed (MEDLINE), Scopus, and Embase] from January 2000 to October 2019.

RESULTS

Low-grade inflammation is a possible pathological role in endothelial dysfunction as a consequence of ED and other related metabolic diseases. Increased inflammation and endothelial/prothrombotic markers can be associated with the presence and degree of ED. Pharmacological therapy and modification of lifestyle and risk factors may have a significant role in the recovery of erectile response through reduction of inflammatory marker levels.

CONCLUSION

Inflammation is the least common denominator in the pathology of ED and metabolic disorders. The inflammatory process of ED includes a shift in the complex interactions of cytokines, chemokines, and adhesion molecules. These data have established that anti-inflammatory agents could be used as a therapeutic opportunity in the prevention and treatment of ED. Further research on inflammation-related mechanisms underlying ED and the effect of therapeutic strategies aimed at reducing inflammation is required for a better understanding of the pathogenesis and successful management of ED.

Sexuality in Persons With Hidradenitis Suppurativa: Factors Associated With Sexual Desire and Functioning Impairment

Hidradenitis Suppurativa (HS) is a chronic skin disease involving intimate and sensitive areas and affecting physical and mental health. We investigated the prevalence of sexual desire and functioning impairment, and their associations with quality of life, anxiety, depression, minor psychiatric disorders (MPD), and clinical features (e.g., disease severity) in 77 patients with HS who completed self-report measures and answered to questions assessing socio-demographic characteristics, lifestyle habits, and hindered sexuality due to HS. The majority of patients reported hindered sexuality, and poor sexual functioning, while showing good levels of dyadic and solitary sexual desire. No associations were found between clinical severity and sexuality measures. Multivariate analyses showed significant associations of sexual outcome measures with alcohol consumption, low Body Mass Index, family history of HS, and severe skin symptoms. Moreover, we found that the presence of negative psychological factors (i.e., MPD, anxiety, poor mental status) increased the risk of sexual impairment. These findings underline the important role of psychological and sexual aspects in HS patients and suggest that physicians should consider the effect of disease burden on patients' sexual health.

Gender differences in sexual health impairment in hidradenitis suppurativa: A systematic review

Hidradenitis suppurativa (HS) is a chronic inflammatory dermatosis characterized by painful nodules, sinus tracts, and scarring, with a predilection for intertriginous areas. HS is particularly prevalent in women of childbearing age and can have varying psychological and physical consequences. The chronic and debilitating nature of this disease can lead to significant impairments in patients' sexual health and overall quality of life. This systematic review examines gender differences in the impact of HS on sexual health. In addition, we review gaps in the management of sexual health for patients with HS and outline recommendations to adequately address sexual concerns and optimize care.

Male Sexual Health and Reproduction in Cutaneous Immune-Mediated Diseases: A Systematic Review

INTRODUCTION

Information about the possible effects of cutaneous immune-mediated diseases (cIMDs) on male sexual function and reproduction is scarce. Factors known to impair sexual health and reproduction, such as inflammation, medication use, and hypogonadism, can be present in a significant proportion of male patients with cIMD.

OBJECTIVES

To systematically review the literature for the influence of paternal cIMD on many aspects of male sexual and reproductive health, such as sexual function, reproductive hormones, fertility, and pregnancy and offspring outcomes.

METHODS

A systematic literature search was performed. The searches combined keywords regarding male sexual function and fertility, pregnancy outcomes, and offspring's health with a list of cIMDs.

RESULTS

The majority of the identified studies included patients with psoriasis (22 of 27), and sexual function was the most common outcome of interest (20 of 27). For patients diagnosed with psoriasis, the prevalence of male sexual dysfunction reported in these studies ranged from 34 to 81%. Hypogonadism in patients with psoriasis was reported in 2 of 3 studies. Sperm analysis abnormalities in patients with psoriasis were reported in 3 of 4 studies. No information about the effect of paternal disease on pregnancy and offspring outcomes was identified.

CONCLUSIONS

Disease activity in psoriasis might play an important role in the development of sexual dysfunction, hypogonadism, and abnormal sperm quality. For the other cIMD included in this review, there is insufficient information regarding male sexual and reproductive health to draw firm conclusions. More research is needed to understand the association between cIMD and impaired male sexual and reproductive health. Perez-Garcia LF, Dolhain R, te Winkel B, et al. Male Sexual Health and Reproduction in Cutaneous Immune-Mediated Diseases: A Systematic Review. Sex Med Rev 2021;9:423-433.

Dermatological diseases, sexuality and intimate relationships: A qualitative meta-synthesis

AIMS AND OBJECTIVES

To conduct a systematic review and meta-synthesis of findings from qualitative research about sexuality and intimate relationship among patients with dermatological diseases.

BACKGROUND

Over the last few decades, there has been an increase in clinical research investigating aspects related to sex and sexuality in patients living with dermatological diseases. In fact, studies recognise a negative impact on various aspects of intimacy, such as sexual function, self-esteem and romantic relationships. The body of qualitative literature about sexuality in the context of dermatological diseases is emerging but consists mainly of small studies that would benefit from aggregation, synthesis and interpretation to highlight and summarise the overarching dimensions to this clinical issue.

DESIGN

A systematic review and meta-synthesis of qualitative studies.

METHODS

BioMed Central, Cochrane Library, MEDLINE, CINAHL, PsycINFO, PsycARTICLES, ERIC, Scopus, and Web of Science were searched between June-November 2017 with no publication date limits. Screening and selection of studies was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (PRISMA). After retrieval, the qualitative data were subject to meta-synthesis to identify overarching themes.

RESULTS

Ten qualitative studies were found. We identified four themes: (a) Embarrassment and shame; (b) Impaired sense of attractiveness and sexual avoidance; (c) Relationship issues; and (d) Lack of professional support. The patients in these studies adopted negative coping styles, such as avoidance and hiding their bodies.

CONCLUSION

When assessing and evaluating patient care in dermatology, it is important that sexuality and the impact the disease could have on relationships is included.

RELEVANCE TO CLINICAL PRACTICE

An important part of nursing care is ensuring that patients are helped to develop positive coping strategies rather than negative ones. Patients with dermatological conditions also need advice and treatment to address any physically related sexual problems. Nurses need to be the initiators of these sensitive conversations to put patients at ease and work together to implement positive measures to reduce the sexuality-related issues patients face.

Sexual Function in Patients Suffering from Sacrococcygeal Pilonidal Sinus Disease

Introduction

Sexual function is one of the aspects upon which quality of life (QoL) is based. Although previous studies have evaluated the influence of sacrococcygeal pilonidal sinus disease (SPSD) on QoL, no data are available on the influence of SPSD on sexual function in a highly active sexual population based on the age range. The aim of this prospective study was to evaluate whether SPSD has a negative impact on sexual function and whether this is influenced by the surgical treatment of SPSD.

Methods 

Sexual function was pre- and postoperatively assessed by the Sexual Self-Consciousness Scale (SSCS; score range 0-48), subdivided into the sexual embarrassment (SE; score range 0-24) and sexual self-focus subscale (SFF; score range 0-24). The higher the score, the higher is the sexual dysfunction. Patients were also asked whether SPSD influenced their sexual functioning.

Results 

A total of 88 male patients who underwent surgical treatment for SPSD were included in the study. The mean (±SD) preoperative SSCS score was 14.5±9.1 and 13.9±8.4 two weeks postoperatively (p=0.394). Six and twelve weeks after surgery, there was a significant reduction to 12.2±9.0 (p=0.002) and 12.3±8.8 (p=0.013), respectively. SE decreased from 5.5±5.1 preoperatively to 5.1±4.6 (p=0.258), 4.2±4.7 (p=0.004) and 4.0±4.6 (p=0.013) two, six, and twelve weeks after surgery. For SFF, there was a decrease from 9.0±5.0 to 8.9±4.9 (p=0.717), 7.8±5.2 (p=0.004) and 8.2±5.3 (p=0.168), respectively. Preoperatively, 70% of the patients totally or partially disagreed that SPSD influenced their sexual functioning, and this increased to 80% of the patients 12 weeks after surgery.

Conclusion 

This prospective study showed a significant decrease in sexual dysfunction, both six and twelve weeks after surgery, compared to preoperatively in patients suffering from SPSD.

Sexual quality of life in female patients with acne

Acne is a common skin disease which can have a negative psychosocial impact on quality of life. Sexual health is an important part of overall health and little is known about the effects of acne on individual sexuality. We aimed to assess the sexual quality of life and general quality of life in female patients with acne and compare to those without acne. Sixty female participants with acne and age-matched 40 female controls were enrolled in the study and asked to complete the Sexual Quality of Life-Female Questionnaire and the Short Form-36 Health Survey. Acne severity was evaluated objectively by the Global Acne Grading System and subjectively by the Visual Analogue Scale. Participants reported a significantly worse sexual quality of life and had significantly decreased scores on the quality of life scales of Bodily Pain, General Perception of Health and the Physical Component Summary when compared to controls. Neither the sexual quality of life nor the quality of life was correlated with objective and subjective acne severity and duration of acne. Acne can negatively affect sexual quality of life in female patients as well as differentdimensions of quality of life. The sexual quality of life should be considered while evaluating acne in women irrespective of its severity.

Evaluation of the occurrence of sexual dysfunction and general quality of life in female patients with psoriasis

BACKGROUND

Psoriasis has a significant impact on quality of life (QoL). Sexual life can also be affected, with sexual dysfunction being reported by 25-70% of patients.

OBJECTIVES

To determine the occurrence of sexual dysfunction and evaluate QoL in women with psoriasis.

METHODS

This case-control study included women aged 18-69 years. The validated Brazilian Portuguese versions of the Female Sexual Function Index (FSFI) and of the Medical Outcomes Study 36-Item Short Form Health Survey (SF-36) were administered to all participants to assess sexual function and QoL, respectively. Patients with psoriasis underwent clinical evaluation for the presence of comorbidities, especially psoriatic arthritis and other rheumatic manifestations. Location of lesions and the extent of skin involvement were also assessed.

RESULTS

The sample consisted of 150 women, 75 with diagnosis of psoriasis and 75 healthy controls. Prevalence of sexual dysfunction was high in women with psoriasis (58.6% of the sample). Prevalence was statistically higher in women with psoriasis than in controls (P = 0.014). The SF-36 domain scores were also lower in women with psoriasis, with role limitations due to physical health, limitations due to emotional problems, and mental health being the most affected domains.

STUDY LIMITATIONS

Sample size was calculated to evaluate the association between the occurrence of sexual dysfunction and psoriasis, but it did not include the determination of the possible causes of this dysfunction.

CONCLUSIONS

QoL and sexual function were altered in women with psoriasis and should be taken into consideration when assessing disease severity.

Quality of life and sexual health in patients with hidradenitis suppurativa

Background

Hidradenitis suppurativa (HS) is a chronic, recurrent, debilitating follicular disease. The effect of HS on physical and psychological aspects of sexual function is not well understood.

Objective

The objective of this study is to investigate the contribution of sexual dysfunction to the quality of life (QoL) of patients with HS and to investigate the extent to which sexual health predicts the QoL in these patients.

Methods

This is an observational cross-sectional study of 50 patients with HS and 50 healthy volunteers who completed questionnaires to measure QoL and sexual functioning using four validated tools.

Results

Male patients experienced higher sexual dysfunction and a reduced quality of sexual life, while female patients reported higher sexual distress, compared with control groups. In male patients, sexual QoL and erectile dysfunction predicted a 72% decline in QoL. In female patients, sexual distress and sexual dysfunction predicted 46% variability in QoL index scores, beyond the effects of disease severity.

Conclusion

Disruptions to sexual functioning greatly contribute to QoL impairments in patients with HS regardless of genital lesions. Health care professionals should inquire about and pay close attention to sexual health concerns in patients with HS.

Psychosexual Aspects of Vulvar Disease

Physically, the vulva is an anatomic location of convergence, which includes vascular, neural, hormonal, reproductive, dermatologic, and musculoskeletal systems. Psychosocially, the vulva represents privacy, femininity, sexuality, and intimacy. Because of this intertwined relationship, vulvar disease and dysfunction can significantly impact a woman's physical health as well as her relationships. This article elucidates the impact of vulvar disease on the individual psyche, sexual functioning, and intimate relationships. Psychological concepts are explained, psychological interventions are reviewed, and integrative approaches addressing psychological factors in the clinic are introduced.

Quality of life and sexual health in patients with genital psoriasis

BACKGROUND

Knowledge about quality of life and sexual health in patients with genital psoriasis is limited.

OBJECTIVES

We studied quality of life and sexual function in a large group of patients with genital psoriasis by means of validated questionnaires. In addition, we evaluated whether sufficient attention is given by healthcare professionals to sexual problems in patients with psoriasis, as perceived by the patients.

METHODS

A self-administered questionnaire was sent to 1579 members of the Dutch Psoriasis Association. Sociodemographic patient characteristics, medical data and scores of several validated questionnaires regarding quality of life (Dermatology Life Quality Index) and sexual health (Sexual Quality of Life Questionnaire for use in Men, International Index of Erectile Function, Female Sexual Distress Scale and Female Sexual Function Index) were collected and analysed.

RESULTS

This study (n = 487) shows that psoriasis has a detrimental effect on quality of life and sexual health. Patients with genital lesions reported even significantly worse quality of life than patients without genital lesions (mean ± SD quality of life scores 8·5 ± 6·5 vs. 5·5 ± 4·6, respectively, P < 0·0001). Sexual distress and dysfunction are particularly prominent in women (reported by 37·7% and 48·7% of the female patients, respectively). Sexual distress is especially high when genital skin is affected (mean ± SD sexual distress score in patients with genital lesions 16·1 ± 12·1 vs. 10·1 ± 9·7 in patients without genital lesions, P = 0·001). The attention given to possible sexual problems in the psoriasis population by healthcare professionals is perceived as insufficient by patients.

CONCLUSIONS

In addition to quality of life, sexual health is diminished in a considerable number of patients with psoriasis and particularly women with genital lesions have on average high levels of sexual distress. We underscore the need for physicians to pay attention to the impact of psoriasis on psychosocial and sexual health when treating patients for this skin disease.

Emerging role for TNF-α in erectile dysfunction

INTRODUCTION

A role for cytokines in the pathophysiology of erectile dysfunction (ED) has emerged. Cytokines induce genes that synthesize other peptides in the cytokine family and several mediators, such as prostanoids, leukotrienes, nitric oxide, bradykinin, reactive oxygen species, and platelet-activating factor, all of which can affect vascular function. Consistent with the fact that the cavernosal tissue is a complex extension of the vasculature, risk factors that affect the vasculature have been shown to affect cavernosal function as well. Accordingly, the penile tissue has been recognized as an early sentinel for atherosclerosis that underlies coronary artery disease and cardiovascular diseases (CVD).

AIM

To review the literature pertaining to the role of tumor necrosis factor-alpha (TNF-α) in ED.

METHODS

PubMed search for pertinent publications on the role of cytokines, particularly TNF-α, in CVD and ED.

MAIN OUTCOME MEASURES

Clinical and experimental evidence demonstrates that TNF-α may play a role in ED.

RESULTS

TNF-α has been shown to play an important role in CVD, mainly due to its direct effects on the vasculature. In addition, high levels of TNF-α were demonstrated in patients with ED. In this review, we present a short description of the physiology of erection and the cytokine network. We focus on vascular actions of TNF-α that support a role for this cytokine as a potential candidate in the pathophysiology of ED, particularly in the context of CVD. A brief overview of its discovery, mechanisms of synthesis, receptors, and its main actions on the systemic and penile vasculature is also presented.

CONCLUSIONS

Considering that ED results from a systemic arterial defect not only confined to the penile vasculature, implication of TNF-α in the pathophysiology of ED offers a humoral linking between CVD and ED.