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Mean platelet volume as a predictive marker of erectile dysfunction: a meta-analysis. Int J Impot Res 2022; 34:746-752. [PMID: 35091698 DOI: 10.1038/s41443-021-00523-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 12/13/2021] [Accepted: 12/20/2021] [Indexed: 12/24/2022]
Abstract
Erectile dysfunction (ED) is a global health problem that commonly occurs due to multiple factors, particularly by a vascular abnormality with the activation of platelet (PLT). Mean platelet volume (MPV), a PLT activity marker, has been hypothesized to be associated with ED. The present meta-analysis aims to evaluate the MPV and its contribution to ED diagnosis. A systematic searching to summarize the association of MPV as a predictive marker for ED was conducted on two databases, including MEDLINE (PubMed) and CINAHL (EBSCOhost). We included all English studies that measured MPV levels in ED and non-ED subjects. A total of 168 publications were initially retrieved and screened systematically. 12 studies with 1643 subjects were included for both qualitative and quantitative analysis. The MPV mean difference between ED patients and healthy subjects; vasculogenic and non-vasculogenic ED showed significant differences. Our findings show PLT is associated with the development of ED. Higher MPV level was found in the ED subjects compared to the healthy controls. Nevertheless, the evidence is still limited due to the small number of studies and further investigations are required to support the utilization of MPV for ED diagnosis.
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Cedergren Weber G, Odin P. Diagnostic work up: Laboratory and biomarkers. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2022; 162:53-96. [PMID: 35397789 DOI: 10.1016/bs.irn.2021.12.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This chapter will focus on the diagnostic work around sexual dysfunction in Parkinson's disease, especially laboratory tests and biomarkers. A number of methods to analyze if sexual dysfunction is caused by neural pathology, vascular dysfunction or other mechanisms are now available. Other methods can be used to differentiate between psychogenic/functional reasons behind sexual dysfunction and organic ones. The role of biomarkers for diagnosis, but also for understanding the reason behind and for counteracting sexual dysfunction is becoming more evident. There is also a rich and increasing number of scales and other instruments available for detecting and quantifying sexual hypo- and hyperactivity. When investigating the reason behind sexual dysfunction in patients with Parkinson's disease comorbidities should also be considered. Finally, early and pronounced sexual dysfunction might in some cases be an indication that differential diagnosis, like Multisystem Atrophy, should be thought about. All these aspects of the diagnostic procedures around sexual dysfunction in Parkinson's disease will be covered in this chapter.
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Affiliation(s)
- Gustav Cedergren Weber
- Division of Neurology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.
| | - Per Odin
- Division of Neurology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
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Li X, Yang HF, Chen Y, Pei LJ, Jiang R. Effect of the icariin on endothelial microparticles, endothelial progenitor cells, platelets, and erectile function in spontaneously hypertensive rats. Andrology 2021; 10:576-584. [PMID: 34779135 DOI: 10.1111/andr.13127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/19/2021] [Accepted: 11/03/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVES To investigate the effect of icariin on endothelial microparticles, endothelial progenitor cells, platelets, and erectile function in spontaneously hypertensive rats. MATERIALS AND METHODS Twelve 8-week-old healthy male Wistar-Kyoto rats and 12 spontaneously hypertensive rats were randomly divided into four following groups: Wistar-Kyoto control group (normal saline 1 ml/d given by gavage), Wistar-Kyoto + icariin group (icariin 10 mg/kg × d dissolved in 1 ml normal saline and given by gavage), spontaneously hypertensive rats control group (normal saline 1 ml/d given by gavage), and spontaneously hypertensive rats + icariin group (icariin 10 mg/kg × d dissolved in 1 ml normal saline and given by gavage). Four weeks later, the maximum intracavernous pressure/mean arterial pressure, platelet count, mean platelet volume, platelet distribution width, endothelial microparticles, endothelial progenitor cells, and vitronectin receptor were measured in each group. RESULTS Under 3 or 5 V electrical stimulation, the maximum intracavernous pressure/mean arterial pressure in the spontaneously hypertensive rats + icariin group (0.23 ± 0.03, 0.38 ± 0.02) was significantly higher compared to the spontaneously hypertensive rats control group (0.12 ± 0.02, 0.20 ± 0.02) (p<0.05). Platelet count, mean platelet volume, and platelet distribution width in the spontaneously hypertensive rats + icariin group (1103.67 ± 107.70 × 109 /L, 9.08 ± 0.50 fl, 11.87 ± 0.45%) were significantly lower than those in the spontaneously hypertensive rats control group (1298.00 ± 89.54 × 109 /L, 9.72 ± 0.44 fl, 13.03 ± 0.59%) (all p < 0.05). Endothelial microparticles, endothelial progenitor cells, and vitronectin receptor in the spontaneously hypertensive rats + icariin group (1.01 ± 0.28%, 1.53 ± 0.65%, 2.13 ± 0.53%) were significantly lower than those in the spontaneously hypertensive rats control group (1.58 ± 0.19%, 2.71 ± 0.64%, 3.76 ± 0.52%) (all p < 0.05). Moreover, maximum intracavernous pressure/mean arterial pressure was strongly negatively correlated with platelet distribution width and vitronectin receptor (r > 0.7), and maximum intracavernous pressure/mean arterial pressure was moderately negatively correlated with mean platelet volume, endothelial microparticles, and endothelial progenitor cells (0.5 < r<0.7). CONCLUSION Icariin may improve erectile function in spontaneously hypertensive rats by reducing the content of endothelial microparticles in blood and inhibiting the activation of the platelets. Endothelial microparticles, endothelial progenitor cells, and platelet activation-related (mean platelet volume, platelet distribution width, and vitronectin receptor) can be used as indicators for icariin to improve erectile function in spontaneously hypertensive rats.
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Affiliation(s)
- Xu Li
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Hai-Fan Yang
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yong Chen
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Li-Jun Pei
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Rui Jiang
- Department of Urology, the Affiliated Hospital of Southwest Medical University, Luzhou, China
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Crafa A, Condorelli RA, Mongioì LM, Cannarella R, Barbagallo F, Aversa A, Izzo G, Perri A, Calogero AE, La Vignera S. Mean Platelet Volume as a Marker of Vasculogenic Erectile Dysfunction and Future Cardiovascular Risk. J Clin Med 2020; 9:jcm9082513. [PMID: 32759752 PMCID: PMC7463896 DOI: 10.3390/jcm9082513] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 07/29/2020] [Accepted: 07/31/2020] [Indexed: 01/02/2023] Open
Abstract
Cardiovascular diseases are the main cause of mortality in the Western population, so the attempt to find a marker capable of predicting their early onset is not surprising. It is known that arteriogenic erectile dysfunction (ED) precedes the onset of a major coronary event by several years. However, a marker that is able to early identify those patients who should undergo further diagnostic investigations is, to date, missing. Recent research on this topic has focused on the role of the mean platelet volume (MPV), a marker of platelet activity that is high in most vascular diseases, such as coronary artery disease (CAD), stroke, peripheral artery disease (PAD), and ED. The basic pathophysiological mechanism of all these clinical conditions is atherosclerosis. Platelets play a central role in amplifying this process both indirectly by stimulating endothelial cells to produce inflammatory cytokines and chemokines, and directly through the expression of membrane receptors and the release of molecules that contribute to the formation of atherosclerotic plaque. The objective of this review is to critically analyze the evidence on the role of MPV in predicting the diagnosis and severity of vasculogenic ED and the possibility of using this simple marker as a first step to start a diagnostic process aimed at assessing the cardiovascular risk in these patients.
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Affiliation(s)
- Andrea Crafa
- Department of Clinical and Experimental Medicine, University of Catania, via S. Sofia 78, 95123 Catania, Italy; (A.C.); (R.A.C.); (L.M.M.); (R.C.); (F.B.); (A.E.C.)
| | - Rosita A. Condorelli
- Department of Clinical and Experimental Medicine, University of Catania, via S. Sofia 78, 95123 Catania, Italy; (A.C.); (R.A.C.); (L.M.M.); (R.C.); (F.B.); (A.E.C.)
| | - Laura M. Mongioì
- Department of Clinical and Experimental Medicine, University of Catania, via S. Sofia 78, 95123 Catania, Italy; (A.C.); (R.A.C.); (L.M.M.); (R.C.); (F.B.); (A.E.C.)
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, via S. Sofia 78, 95123 Catania, Italy; (A.C.); (R.A.C.); (L.M.M.); (R.C.); (F.B.); (A.E.C.)
| | - Federica Barbagallo
- Department of Clinical and Experimental Medicine, University of Catania, via S. Sofia 78, 95123 Catania, Italy; (A.C.); (R.A.C.); (L.M.M.); (R.C.); (F.B.); (A.E.C.)
| | - Antonio Aversa
- Department of Experimental and Clinical Medicine, Magna Græcia University, 88100 Catanzaro, Italy; (A.A.); (G.I.)
| | - Giulia Izzo
- Department of Experimental and Clinical Medicine, Magna Græcia University, 88100 Catanzaro, Italy; (A.A.); (G.I.)
| | - Anna Perri
- Kidney and Transplantation Research Center, Department of Nephrology, Dialysis and Transplantation, Annunziata Hospital, 87100 Cosenza, Italy;
| | - Aldo E. Calogero
- Department of Clinical and Experimental Medicine, University of Catania, via S. Sofia 78, 95123 Catania, Italy; (A.C.); (R.A.C.); (L.M.M.); (R.C.); (F.B.); (A.E.C.)
| | - Sandro La Vignera
- Department of Clinical and Experimental Medicine, University of Catania, via S. Sofia 78, 95123 Catania, Italy; (A.C.); (R.A.C.); (L.M.M.); (R.C.); (F.B.); (A.E.C.)
- Correspondence: ; Fax: +39-95-378-1435
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Diniz AFA, Ferreira RC, de Souza ILL, da Silva BA. Ionic Channels as Potential Therapeutic Targets for Erectile Dysfunction: A Review. Front Pharmacol 2020; 11:1120. [PMID: 32848741 PMCID: PMC7396897 DOI: 10.3389/fphar.2020.01120] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/10/2020] [Indexed: 12/12/2022] Open
Abstract
Erectile dysfunction (ED) is a prevalent condition, especially in men over 40 years old, characterized by the inability to obtain and/or maintain penile erection sufficient for satisfactory sexual intercourse. Several psychological and/or organic factors are involved in the etiopathogenesis of ED. In this context, we gathered evidence of the involvement of Large-conductance, Ca2+-activated K+ channels (BKCa), Small-conductance, Ca2+-activated K+ channels (SKCa), KCNQ-encoded voltage-dependent K+ channels (KV7), Transient Receptor Potential channels (TRP), and Calcium-activated Chloride channels (CaCC) dysfunctions on ED. In addition, the use of modulating agents of these channels are involved in relaxation of the cavernous smooth muscle cell and, consequent penile erection, suggesting that these channels are promising therapeutic targets for the treatment of erectile dysfunction.
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Affiliation(s)
- Anderson Fellyp Avelino Diniz
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Rafael Carlos Ferreira
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, Brazil
| | - Iara Leão Luna de Souza
- Departamento de Ciências Biológicas e da Saúde, Universidade Estadual de Roraima, Boa Vista, Brazil
| | - Bagnólia Araújo da Silva
- Programa de Pós-Graduação em Produtos Naturais e Sintéticos Bioativos, Universidade Federal da Paraíba, João Pessoa, Brazil
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Yilmaz‐Oral D, Onder A, Gur S, Carbonell‐Barrachina ÁA, Kaya‐Sezginer E, Oztekin CV, Zor M. The beneficial effect of clove essential oil and its major component, eugenol, on erectile function in diabetic rats. Andrologia 2020; 52:e13606. [DOI: 10.1111/and.13606] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/17/2020] [Accepted: 03/28/2020] [Indexed: 12/01/2022] Open
Affiliation(s)
- Didem Yilmaz‐Oral
- Department of Pharmacology Faculty of Pharmacy Cukurova University Adana Turkey
| | - Alev Onder
- Department of Pharmacognosy Faculty of Pharmacy Ankara University Ankara Turkey
| | - Serap Gur
- Department of Pharmacology Faculty of Pharmacy Ankara University Ankara Turkey
| | - Ángel A. Carbonell‐Barrachina
- Department of Agro‐Food Technology Research Group ‘Food Quality and Safety’Universidad Miguel Hernández de Elche Alicante Spain
| | - Ecem Kaya‐Sezginer
- Department of Biochemistry Faculty of Pharmacy Ankara University Ankara Turkey
| | - Cetin Volkan Oztekin
- Department of Urology Faculty of Medicine University of Kyrenia Girne‐TRNC, Mersin 10 Turkey
| | - Murat Zor
- Department of Pharmacognosy Faculty of Pharmacy Lokman Hekim University Ankara Turkey
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Tridiantari DK, Saraswati LD, Udiyono A. Epidemiology of erectile dysfunction in men with diabetes mellitus: a study in a primary health care center in Indonesia. MEDICAL JOURNAL OF INDONESIA 2020. [DOI: 10.13181/mji.oa.192070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
BACKGROUND Diabetes mellitus (DM) is one of the factors causing erectile dysfunction (ED) and may affect a person's quality of life. This study was aimed to describe the epidemiology of ED in men with DM in a primary health care.
METHODS The study used a cross-sectional study design conducted from January to March 2017 at the Tlogosari Kulon Health Center, Semarang. There were 122 diabetic men who were all included in the study. The data were collected using interviewerassisted questionnaires. The status of ED was measured by the erectile dysfunction intensity scale adapted to the International Index of Erectile Function.
RESULTS The results showed that the prevalence of diabetic men with ED was 84.4%. Most men with ED had age of ≥46 years (91.0%), experienced work stress (88.5%), had low physical activity (93.1%), had obesity (88.0%) of which 86.3% had central obesity, smoking (84.6%), had DM >5 years (91.2%), and took antihypertensive drugs (90.0%). The fasting blood glucose level of respondents ≥126 mg/dl was 86.0%, and 91.7% had sexual desire disorder. The duration of DM and aging are contributing factors of ED in males with DM, with a p-value of 0.016 and 0.013, respectively.
CONCLUSIONS The prevalence of ED in primary health care is still high, and the determining factors were the duration of DM and aging. Public health centers are advised to undertake health promotion on the prevention of factors that can lead to sexual dysfunction in males with DM.
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The Complex Relationship Between Erectile Dysfunction and Hypogonadism in Diabetes Mellitus. CURRENT SEXUAL HEALTH REPORTS 2019. [DOI: 10.1007/s11930-019-00216-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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El Taieb M, Hegazy E, Ibrahim A. Daily Oral l-Arginine Plus Tadalafil in Diabetic Patients with Erectile Dysfunction: A Double-Blinded, Randomized, Controlled Clinical Trial. J Sex Med 2019; 16:1390-1397. [DOI: 10.1016/j.jsxm.2019.06.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 06/06/2019] [Accepted: 06/13/2019] [Indexed: 02/06/2023]
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Abstract
Erectile dysfunction is a common condition. Many men do not self-report erectile dysfunction symptoms; thus, physicians must ask about sexual health and function to elicit concerns. Although the impact of untreated erectile dysfunction on quality of life should prompt physicians to ask about symptoms, so should the presence of cardiac and metabolic disease. Diagnosis of erectile dysfunction is made in the primary care office, and patients may be treated with oral, intraurethral, or intracavernosal medications; vacuum devices; or penile prosthesis. Treatment should be guided by patient preference with a goal of improving quality of life and mitigating chronic disease risk.
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Affiliation(s)
- Gretchen M Irwin
- Wichita Family Medicine Residency, Department of Family and Community Medicine, Wesley Medical Center, University of Kansas School of Medicine, 1010 North Kansas, Wichita, KS 67214, USA.
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Yang G, Muzepper M. Platelet indices and erectile dysfunction: A systematic review and meta-analysis. Andrologia 2019; 51:e13248. [PMID: 30740770 DOI: 10.1111/and.13248] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/07/2019] [Accepted: 01/14/2019] [Indexed: 01/05/2023] Open
Abstract
Elevated platelet levels have been postulated to be associated with cardiovascular diseases, conditions closely linked to erectile dysfunction (ED). The current systematic review and meta-analysis was performed to assess the platelet indices, which including platelet count (PLT), mean platelet volume (MPV) and platelet distribution width (PDW) in subjects with ED compared to controls in an attempt to clarify the possible role of platelet indices in the pathogenesis of ED. We initially screened the candidate studies observing the possible association between platelet indices and ED following literature search of database Cochrane Library, PubMed, EMBASE and MEDLINE and therefore included the studies based on the pre-defined inclusion and exclusion criteria. Two independent investigators extracted the related information on article data and outcome measures from the qualified studies, and a meta-analysis was therefore performed using Stata 12.0 software. Subgroup analyses were conducted by the different ED aetiology obtained from the eligible studies. The standard mean difference (SMD) and the corresponding 95% confidence intervals (95% CIs) were applied to estimate the outcome measures. A total of 14 articles were qualified in our meta-analysis with a total of 1595 cases and 987 controls included. Pooled estimate was in favour of increased MPV levels in subjects with ED with a SMD of 0.651 fl, 95% CI 0.567-0.735, p = 0.000. Subgroup analysis showed that vasculogenic ED had a higher MPV levels than controls as well (SMD [95% CI] = 1.026 [0.823-1.228], p = 0.000). However, pooled analysis based on PLT and PDW levels has produced inconsistent results and not strong evidence on platelet level and ED correlation. In conclusion, vasculogenic ED patients had a higher MPV level in our study. However, the results need further interpretation with caution and more high-quality studies are warranted.
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Affiliation(s)
- Guangmin Yang
- Department of Vascular Surgery, Drum Tower Hospital Affiliated to School of Medicine, Nanjing University, Nanjing, China
| | - Mehmutjan Muzepper
- Department of Vascular Surgery, Drum Tower Hospital Affiliated to School of Medicine, Nanjing University, Nanjing, China
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