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https://www.readbyqxmd.com/read/29743519/transdermal-water-in-oil-nanocarriers-of-nitric-oxide-for-triggering-penile-erection
#1
Eunryel Nam, Saejong Yoo, Hwi-Yool Kim, Young-Rok Kim, Yun Jung Heo
Men's sexual health can have significant effects on a man's self-esteem, sexual relationship and male reproductive functions. Although commercially available drugs (e.g., VIAGRA and CIALIS) show effective treatment of erectile dysfunction (ED), patients with severe ED fail to respond to these medicines. Topical nitric-oxide (NO) delivery to penis can be a painless, alternative solution with severe ED because NO triggers erection and diffuses to the trabecular arteries and smooth muscles in the penis. We here develop water-in-oil (W/O) nanoemulsions (NEs) that contain NO and can directly spread on the penis...
May 9, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29735205/-i-don-t-really-have-any-issue-with-masculinity-older-canadian-men-s-perceptions-and-experiences-of-embodied-masculinity
#2
Laura Hurd Clarke, Maya Lefkowich
The article explores what older Canadian men consider to be the definition of masculinity, how they evaluate their own masculinity relative to their definition, and how and why they use particular forms of body work in response to aging and their understandings of masculinity. Data are presented from qualitative interviews with 29 community-dwelling men aged 65-89. The men in our study defined masculinity relationally with femininity and homosexuality and identified three hallmarks of masculinity, namely: physical strength, leadership, and virility...
June 2018: Journal of Aging Studies
https://www.readbyqxmd.com/read/29727543/-efficacy-and-safety-of-traditional-chinese-medicine-combined-with-sildenafil-in-the-treatment-of-ed-in-chinese-men%C3%AF-a-real-world-study
#3
Jun Guo, De-Gui Chang, Lei Chen, Bin Ou-Yang, Rui Zhang, Qiang Geng, Chao Yu, Fu Wang, Qing-He Gao, Guo-Jin Yu, Xiu-Ju Zhang
Objective: To make a real-world study on the efficacy and safety of traditional Chinese medicine (TCM) combined with sildenafil in the treatment of erectile dysfunction (ED) that failed to respond to TCM medication. METHODS: This study included 1 038 ED patients with the International Index of Erectile Function-5 (IIEF-5) scores ≤21 and improvement <30% after 4 weeks of TCM medication, differentially diagnosed with kidney-yang or kidney-yin deficiency syndrome...
October 2017: Zhonghua Nan Ke Xue, National Journal of Andrology
https://www.readbyqxmd.com/read/29669541/three-dimensional-models-of-mycobacterium-tuberculosis-proteins-rv1555-rv1554-and-their-docking-analyses-with-sildenafil-tadalafil-vardenafil-drugs-suggest-interference-with-quinol-binding-likely-to-affect-protein-s-function
#4
Pallabini Dash, M Bala Divya, Lalitha Guruprasad, Kunchur Guruprasad
BACKGROUND: Earlier based on bioinformatics analyses, we had predicted the Mycobacterium tuberculosis (M.tb) proteins; Rv1555 and Rv1554, among the potential new tuberculosis drug targets. According to the 'TB-drugome' the Rv1555 protein is 'druggable' with sildenafil (Viagra), tadalafil (Cialis) and vardenafil (Levitra) drugs. In the present work, we intended to understand via computer modeling studies, how the above drugs are likely to inhibit the M.tb protein's function. RESULTS: The three-dimensional computer models for M...
April 18, 2018: BMC Structural Biology
https://www.readbyqxmd.com/read/29526546/the-new-mtv-generation-using-methamphetamine-truvada%C3%A2-and-viagra%C3%A2-to-enhance-sex-and-stay-safe
#5
Mohamed A Hammoud, Stefanie Vaccher, Fengyi Jin, Adam Bourne, Bridget Haire, Lisa Maher, Toby Lea, Garrett Prestage
INTRODUCTION: Gay and bisexual men (GBM) often use illicit drugs to enhance sexual pleasure, commonly referred to as 'chemsex' or 'party n play'. In particular, the use of methamphetamine and Viagra™, and other erectile dysfunction medications, both together and separately are strongly predictive of subsequent HIV infection. Truvada™, as pre-exposure prophylaxis (PrEP), virtually eliminates HIV transmission during condomless anal intercourse (CLAI). HIV-negative GBM in intensive sex partying networks may be adding PrEP to their drug regimen to actively reduce the possibility of HIV transmission during chemsex...
March 8, 2018: International Journal on Drug Policy
https://www.readbyqxmd.com/read/29436964/the-magic-pill-the-branding-of-impotence-and-the-positioning-of-viagra-as-its-solution-through-edutainment
#6
Anat Gesser-Edelsburg, Rana Hijazi
Product placement can be presented through edutainment. A drug such as Viagra is introduced or impotence is branded in movies and TV series in different ways to raise awareness of impotence disorder and Viagra as a solution. This study aims to analyze strategies of framing and branding Viagra and impotence disorder, based on a qualitative method analysis of 40 movies and TV series. Findings show that Viagra is shown as not only for older men but also for young and healthy men. Out of 40 movies and TV series in the study sample, in 14 (32...
2018: Journal of Health Communication
https://www.readbyqxmd.com/read/29402684/implications-of-survey-labels-and-categorisations-for-understanding-drug-use-in-the-context-of-sex-among-gay-and-bisexual-men-in-melbourne-australia
#7
Kathleen E Ryan, Anna L Wilkinson, Alisa Pedrana, Brendan Quinn, Paul Dietze, Margaret Hellard, Mark Stoové
BACKGROUND: Reliably measuring drug use by gay, bisexual and other men who have sex with men (GBM) in the context of sex can inform sexual health service responses. We report changing drug use patterns among GBM testing for HIV at a community-based service in Melbourne in response to behavioural survey modifications. METHODS: Surveys were completed by GBM prior to all HIV tests. Survey one asked about use of "party drugs for the purpose of sex" and survey two asked about specific drug use (alcohol, amyl nitrate, methamphetamine, cocaine, ecstasy, GHB, Viagra® /Cialis® ) before or during sex...
February 2, 2018: International Journal on Drug Policy
https://www.readbyqxmd.com/read/29359677/comparative-randomized-crossover-clinical-study-for-the-evaluation-of-erectile-dysfunction-medications-via-novel-pentagon-system
#8
Mohamed I Nounou, Ghada El Haddad, Fatema El Amrawy, Ola El Gaddar, Ahmed El Yazbi, Ahmed Eshra
INTRODUCTION: Due to the chaos in the legislation in the Middle East, male enhancement nutraceuticals may be sold without any registration or evaluation. These products need to be evaluated with respect to safety and efficacy. Furthermore, cultural and social considerations in the Middle East prevent the use of international evaluations schemes for erectile dysfunction. AIM: Evaluating the safety and efficacy parameters of generic and nutraceutical products for erectile dysfunction in the Middle East through a custom-designed, representable and simple system tailored to the regional culture...
2018: Current Drug Safety
https://www.readbyqxmd.com/read/29216624/sildenafil-viagra%C3%A2-prevents-cox-1-txa2-pathway-mediated-vascular-hypercontractility-in-apoe-mice
#9
Marcos A S Leal, Ananda T Dias, Marcella L Porto, Bruna F Brun, Agata L Gava, Silvana S Meyrelles, José Gil-Longo, Manuel Campos-Toimil, Thiago M C Pereira, Elisardo C Vasquez
BACKGROUND/AIMS: The atherosclerotic apolipoprotein E-deficient (apoE-/-) mouse exhibits impaired vasodilation and enhanced vasoconstriction responsiveness. The objectives of this study were: a) to determine the relative contribution of cyclooxygenases (Cox-1 and Cox-2), thromboxane A2 (TXA2) and endothelin-1 (ET-1) to enhancing vascular hyperresponsiveness in this model of atherosclerosis and b) to investigate the beneficial effects of the phosphodiesterase 5 inhibitor sildenafil on this endothelial dysfunction...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29194814/how-sildenafil-viagra-%C3%A2-may-cause-melanoma-a-histopathologic-study-providing-a-potential-physiological-etiopathological-mechanism
#10
LETTER
W C Lambert, M W Lambert, C M Ring, C E Gagna, J D Espinal-Mariotte, R A Schwartz
No abstract text is available yet for this article.
December 1, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29191197/in-vitro-and-in-vivo-aphrodisiac-properties-of-the-seed-extract-from-allium-tuberosum-on-corpus-cavernosum-smooth-muscle-relaxation-and-sexual-behavior-parameters-in-male-wistar-rats
#11
Xingli Tang, Opeyemi J Olatunji, Yifeng Zhou, Xilin Hou
BACKGROUND: Allium tuberosum is a well-known spice as well as a herb in traditional Chinese medicine, used for increasing libido and treating erectile dysfunction. However, not many studies have been done to evaluate the sexual enhancing properties of A. tuberosum. The aim of this study was to evaluate the aphrodisiac and vasorelaxant properties of A. tuberosum on corpus cavernosum smooth muscle (CCSM) as well as checking the effect on enhancing male rat sexual behavior, libido, potency as well as its spermatogenic properties...
December 1, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29187351/viagra-will-be-available-over-counter
#12
Zosia Kmietowicz
No abstract text is available yet for this article.
November 29, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29148852/sildenafil-citrate-improves-the-delivery-and-anticancer-activity-of-doxorubicin-formulations-in-a-mouse-model-of-breast-cancer
#13
Khaled Greish, Maryam Fateel, Sara Abdelghany, Nanitha Rachel, Houman Alimoradi, Moiz Bakhiet, Ahmed Alsaie
Sildenafil is an approved drug for the treatment of erectile dysfunction. The drug exerts its action through the relaxation of smooth muscles and the modulation of vascular endothelial permeability. In this work, we tested whether the aforementioned effects of Sildenafil on tumor vasculatures could result in an improvement of anticancer drug concentration in tumor tissues, and hence improve its anticancer effect. Sildenafil when added to doxorubicin showed synergistic anticancer activity against 4T1 breast cancer cells in vitro...
November 17, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/29132113/fluorometric-detection-of-protein-ligand-engagement-the-case-of-phosphodiesterase5
#14
Giulia Di Rocco, Ilaria Martinelli, Salvatore Pacifico, Remo Guerrini, Elena Cichero, Paola Fossa, Silvia Franchini, Silvia Cardarelli, Mauro Giorgi, Marco Sola, Glauco Ponterini
Phosphodiesterases (PDEs) regulate the intracellular levels of cAMP and cGMP. The great clinical success of the PDE5 inhibitors, Sildenafil (Viagra), Vardenafil (Levitra) and Tadalafil (Cialis) has led to an increasing interest for this class of enzymes. Recent studies have shown a correlation between tumor growth and PDE5 overexpression, making PDE5-selective inhibitors promising candidates for cancer treatment. The search for such inhibitors rests today on radioactive assays. In this work, we exploit the conserved catalytic domain of the enzyme and propose a faster and safer method for detecting the binding of ligands and evaluate their affinities...
February 5, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29080412/raman-chemical-imaging-for-spectroscopic-screening-and-direct-quantification-of-falsified-drugs
#15
Hervé Rebiere, Maxime Martin, Céline Ghyselinck, Pierre-Antoine Bonnet, Charlotte Brenier
Falsified drugs are a threat to the health of patients. The analytical control of such products contributes to the fight against this global issue. Raman chemical imaging is a method that relies on consecutive measurements at the surface of a sample, combining spectroscopy, microscopy and chemometrics. This article explores the capabilities of this analytical technique proposing an innovative methodology with spectroscopic screening for the identification of chemical compounds and the direct quantification of the active substance (without prior calibration)...
January 30, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29057299/viagra-releases-the-brakes-on-melanoma-growth
#16
Robert Feil
Use of the phosphodiesterase 5 (PDE5) blocker sildenafil (Viagra) has been linked to an increased risk of melanoma. In a recent study we discovered a growth-promoting cGMP pathway in melanoma cells. cGMP degradation via PDE5 acts as a brake on this pathway. Inhibition of PDE5 releases this brake, providing a mechanism for the promelanoma effects of sildenafil.
2017: Molecular & Cellular Oncology
https://www.readbyqxmd.com/read/28934694/development-and-implementation-of-a-pass-fail-field-friendly-method-for-detecting-sildenafil-in-suspect-pharmaceutical-tablets-using-a-handheld-raman-spectrometer-and-silver-colloids
#17
Adam Lanzarotta, Lisa Lorenz, JaCinta S Batson, Cheryl Flurer
A simple, fast, sensitive and effective pass/fail field-friendly method has been developed for detecting sildenafil in suspect Viagra and unapproved tablets using handheld Raman spectrometers and silver colloids. The method involves dissolving a portion of a tablet in water followed by filtration and addition of silver colloids, resulting in a solution that can be measured directly through a glass vial. Over one hundred counterfeit Viagra and unapproved tablets were examined on three different devices during the method development phase of the study...
September 8, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28719717/audiometry-results-and-teoae-and-dpoae-amplitudes-in-men-taking-a-phosphodiesterase-type-5-inhibitor-for-erectile-dysfunction
#18
Sertan Öntepeli, Nuray Bayar Muluk, Devrim Tuğlu, Timuçin Şipal
We conducted a prospective study of transient evoked otoacoustic emissions (TEOAEs) and distortion-product otoacoustic emissions (DPOAEs) in men who were taking an oral phosphodiesterase type 5 (PDE5) inhibitor for erectile dysfunction. Our study group was made up of 30 men (60 ears), aged 34 to 60 years (mean: 50.9). They were randomly divided into three groups; 10 men were given sildenafil (Viagra) at 50 mg twice a week, 10 were given tadalafil (Cialis) at 20 mg twice a week, and 10 were given vardenafil (Levitra) at 20 mg twice a week...
July 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28693591/aphrodisiac-potentials-of-the-ethanol-extract-of-aloe-barbadensis-mill-root-in-male-wistar-rats
#19
Joseph O Erhabor, MacDonald Idu
BACKGROUND: Aloe barbadensis (AB) is a short stemmed succulent medicinal herb that is being used by locals in Nigeria to enhance libido. Therefore this study evaluates the aphrodisiac potential and acute toxicological effect of A. barbadensis (AB) root in male Wistar rats. METHODS: Aphrodisiac potential was determined following the oral administration of graded doses (100, 200 and 400 mg/kg) of ethanol extract of A. barbadensis root. Sildenafil citrate (Viagra) and distilled water served as positive and negative controls respectively...
July 11, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28648945/phosphodiesterase-5-inhibition-as-a-therapeutic-target-for-ischemic-stroke-a-systematic-review-of-preclinical-studies
#20
Joakim N E Ölmestig, Ida R Marlet, Atticus H Hainsworth, Christina Kruuse
Phosphodiesterase 5 inhibitors (PDE5i), such as sildenafil (Viagra®) are widely used for erectile dysfunction and pulmonary hypertension. Preclinical studies suggest that PDE5i may improve functional outcome following ischemic stroke. In this systematic review we aimed to evaluate the effects of selective PDE5i in animal models of brain ischaemia. A systematic search in Medline, Embase, and The Cochrane Library was performed including studies in English assessing the effects of selective PDE5i. 32 publications were included describing outcome in 3646 animals...
June 22, 2017: Cellular Signalling
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