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https://www.readbyqxmd.com/read/29224108/negative-impact-of-testosterone-deficiency-and-5%C3%AE-reductase-inhibitors-therapy-on-metabolic-and-sexual-function-in-men
#1
Abdulmaged M Traish
Androgens are steroid hormones with pleotropic and diverse biochemical and physiological functions, and androgen deficiency exerts a negative impact on human health. Testosterone (T) either directly or via its transformation into the more potent metabolite 5α-dihydrotestosterone (5α-DHT) or via aromatization into estradiol (E2) modulates important biochemical signaling pathways of human physiology and plays a critical role in the growth and/or maintenance of functions in a host of tissues and organs. T and 5α-DHT play an important role in regulating physiology of the muscle, adipose tissue, liver, bone, and central nervous system, as well as reproductive and sexual functions...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29214729/finasteride-inhibited-brain-dopaminergic-system-and-open-field-behaviors-in-adolescent-male-rats
#2
Li Li, Yun-Xiao Kang, Xiao-Ming Ji, Ying-Kun Li, Shuang-Cheng Li, Xiang-Jian Zhang, Hui-Xian Cui, Ge-Ming Shi
AIMS: Finasteride inhibits the conversion of testosterone to dihydrotestosterone. Because androgen regulates dopaminergic system in the brain, it could be hypothesized that finasteride may inhibit dopaminergic system. The present study therefore investigates the effects of finasteride in adolescent and early developmental rats on dopaminergic system, including contents of dopamine and its metabolites (dihydroxy phenyl acetic acid and homovanillic acid) and tyrosine hydroxylase expressions both at gene and protein levels...
December 6, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29197368/an-asian-traditional-herbal-complex-containing-houttuynia-cordata-thunb-perilla-frutescens-var-acuta-and-green-tea-stimulates-hair-growth-in-mice
#3
Mun Su Chung, Woong Jin Bae, Sae Woong Choi, Kyu Won Lee, Hyun Cheoul Jeong, Fahad Bashraheel, Seung Hwan Jeon, Jin Woo Jung, Byung Il Yoon, Eun Bi Kwon, Hyun A Oh, Sung Yeoun Hwang, Sae Woong Kim
BACKGROUND: Houttuynia cordata Thunb (HC) is a traditional herbal medicine widely used in Asia for the treatment of patients with alopecia, usually in combination with other two herbal medicines (Perilla frutescens var. acuta (PFVA) and green tea (GT)). However, the effect of this herbal complex has not been clearly demonstrated. We sought to determine the hair growth-promoting effect of this herbal complex (HC, PFVA, and GT) in the animal model. METHODS: Six-week-old male C57BL/6 mice were randomly divided into four groups (negative control, finasteride (1 mg/kg) as a positive control, and two (200 and 400 mg/kg) concentrations of the herbal complex as experimental groups) and were fed its corresponding medications orally for 25 days...
December 2, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29194865/finasteride-accelerates-prostate-wound-healing-after-thulium-laser-resection-through-dht-and-ar-signalling
#4
Ruizhe Zhao, Xingjie Wang, Chenyi Jiang, Fei Shi, Yiping Zhu, Boyu Yang, Jian Zhuo, Yifeng Jing, Guangheng Luo, Shujie Xia, Bangmin Han
OBJECTIVES: Urinary tract infection, urinary frequency, urgency, urodynia and haemorrhage are common post-operative complications of thulium laser resection of the prostate (TmLRP). Our study mainly focuses on the role of finasteride in prostate wound healing through AR signalling. MATERIALS AND METHODS: TmLRP beagles were randomly distributed into different treatment groups. Serum and intra-prostatic testosterone and DHT level were determined. Histological analysis was conducted to study the re-epithelialization and inflammatory response of the prostatic urethra in each group...
November 30, 2017: Cell Proliferation
https://www.readbyqxmd.com/read/29194783/assessing-dutasteride-associated-sexual-dysfunction-using-the-u-s-food-and-drug-administration-adverse-event-reporting-system-faers
#5
Aditya K Gupta, Jessie Carviel, Madhulika A Gupta, Neil H Shear
BACKGROUND: Incidences of sexual dysfunction due to the use of 5 α-reductase inhibitors have been suggested. Despite low sexual dysfunction reported in clinical trials, an analysis of the U.S. Food and Drug Administration Adverse Event Reporting System (FAERS) database revealed a significant disproportionality in the reporting of sexual dysfunction with the use of finasteride. Therefore, it is likely that a similar relationship with dutasteride may exist. OBJECTIVE: To determine whether dutasteride use leads to a higher risk of sexual dysfunction compared to a baseline risk for all other drugs using the FAERS database...
December 1, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/29187470/the-genomic-alterations-of-5%C3%AE-reductases-and-their-inhibitor-finasteride-s-effect-in-bladder-cancer
#6
Chi-Cheng Chen, Chi-Ping Huang, Yi-Tung Tsai, Teng-Fu Hseih, Chih-Rong Shyr
BACKGROUND/AIM: Since androgens affect urothelial bladder cancer (UBC), we examined whether 5α-reductases (5-AR) have genomic alterations in UBC and whether 5α-reductase inhibitors (5-ARI) affect UBC. MATERIALS AND METHODS: The cBioPortal was used to analyze genomic alternations of 5-ARs in UBC cancer genomic datasets. Next, we used the Taiwan National Health Insurance Research database to conduct a population-based case-control study to investigate the effect of a 5-ARI, finasteride on UBC incidence...
December 2017: Anticancer Research
https://www.readbyqxmd.com/read/29168593/respiratory-regulation-by-steroids-in-newborn-rats-a-sex-specific-balance-between-allopregnanolone-and-progesterone-receptors
#7
Vincent Joseph, NagaPraveena Uppari, Hayet Kouchi, Celia De Bruyn, Ryma Boukari, Aida Bairam
We tested the hypothesis that the effects of progesterone on apnoea frequency in newborn rats are the result of a balance between its neuroactive metabolite allopregnanolone (GABAa receptor modulator) and progesterone receptors. We used male and female rats between 10 and 12 days of age and recorded respiratory and metabolic parameters (whole-body plethysmography), and assessed the frequency and duration of apnoeas under normoxia. We tested the effects of a single injection of progesterone (4 mg kg(-1) , i...
November 23, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/29161905/a-focused-review-on-the-effects-of-preoperative-5%C3%AE-reductase-inhibitors-treatment-in-patients-undergoing-holmium-laser-enucleation-of-the-prostate-what-do-we-know-so-far
#8
Panagiotis Dimopoulos, Panagiotis Christopoulos, Spyridon Kampantais
INTRODUCTION: The effects of medical therapy with finasteride or dutasteride during transurethral enucleation of prostate and tissue morcellation are not well defined. In theory, the risk of prostatic fibrosis versus the potential benefit of reduced intraoperative bleeding have been addressed as potential competing factors. The aim of this review was to provide evidence if 5a-reductase inhibitors put the surgeon at a disadvantage or impacts on patient outcomes. MATERIAL AND METHODS: We performed a literature search of PubMed, Scopus and Web of science databases...
November 22, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/29152074/vanillic-acid-attenuates-testosterone-induced-benign-prostatic-hyperplasia-in-rats-and-inhibits-proliferation-of-prostatic-epithelial-cells
#9
Yunu Jung, Jinbong Park, Hye-Lin Kim, Dong-Hyun Youn, JongWook Kang, Seona Lim, Mi-Young Jeong, Gautam Sethi, Sung-Joo Park, Kwang Seok Ahn, Jae-Young Um
Benign prostatic hyperplasia (BPH) is a common disease in the male population, especially in elderly men. Vanillic acid (VA), a dihydroxybenzoic derivative used as a flavoring agent, is reported to have an anti-inflammatory effect. However, there are no reports of its effects on BPH to date. BPH was induced with a pre-4-week treatment of daily subcutaneous injections of testosterone propionate (TP), and the normal control group received injections of ethanol with corn oil instead. Six weeks of further injections were done with (a) ethanol with corn oil, (b) TP only, (c) TP + finasteride, and (d) TP + VA...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29143575/determination-of-illegal-adulteration-of-dietary-supplements-with-synthetic-hair-growth-compounds-by-uplc-and-lc-q-tof-ms
#10
Ji Hyun Lee, Gihaeng Kang, Han Na Park, Jihee Kim, Nam Sook Kim, Seongsoo Park, Sung-Kwan Park, Sun Young Baek, Hoil Kang
In this study, we developed a UPLC-PDA and LC-Q-TOF/MS method to identify and measure the following prohibited substances that may be found in dietary supplements: triaminodil, minoxidil, bimatoprost, alimemazine, diphenylcyclopropenone, α-tradiol, finasteride, methyltestosterone, spironolatone, flutamide, cyproterone, dutasteride, and testosterone 17-propionate.The method was validated according to International Conference on Harmonization guidelines in terms of specificity, linearity, accuracy, precision, LOD, LOQ, recovery, and stability...
November 16, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/29141561/steroidal-anticancer-agents-an-overview-of-estradiol-related-compounds
#11
Renata Minorics, Istvan Zupko
Research of steroidal compounds as anticancer agents started almost 50 years ago. During the past decades several innovative new steroids, like cyproterone, finasteride, estramustin, exemestane and fulvestrant have successfully become part of routine clinical practice. Meanwhile, a vast amount of new information have accumulated about the functions of the endogenous steroid system (including the characterization of enzymes, receptors, transcription pathways, etc.) and about the role of steroids in carcinogenesis...
November 13, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29141069/a-novel-multi-targeting-approach-to-treating-hair-loss-using-standardized-nutraceuticals
#12
Patricia K Farris, Nicole Rogers, Amy McMichael, Sophia Kogan
<p>Hair loss is a complicated problem that causes significant concern for those who are affected. Patients seeking medical treatment have limited options that include topical minoxidil and oral finasteride. While these treatments are backed by long term clinical use and research outcomes, many patients find topical minoxidil difficult to incorporate into their daily routine and some are concerned with the side effects associated with finasteride. In the office setting, patients may be treated with more invasive procedures such as platelet-rich plasma injections (PRP) and hair transplantation, treatments that often must be repeated and can lead to a costly investment...
November 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29139305/development-of-optimized-self-nanoemulsifying-lyophilized-tablets-snelts-to-improve-finasteride-clinical-pharmacokinetic-behavior
#13
Tarek A Ahmed, Khalid M El-Say, Khaled M Hosny, Bader M Aljaeid
OBJECTIVE: Preparation of an optimized finasteride (FSD) lyophilized tablets loaded with self-nanoemulsifying drug delivery system (SNEDDS). SIGNIFICANCE: Enhance FSD bioavailability in male pattern baldness and benign prostatic hyperplasia. METHODS: Two-step optimization was implemented to achieve the study goals. First; mixture design was used to develop an optimized SNEDDS through which the effect of cosurfactant number of carbon atoms on SNEDDS particle size and thermodynamic stability has been tested...
November 15, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/29118521/a-proposal-of-an-effective-platelet-rich-plasma-protocol-for-the-treatment-of-androgenetic-alopecia
#14
Juan Ferrando, Sandra Cecilia García-García, Ana Cecilia González-de-Cossío, Lola Bou, Esperanza Navarra
Background: Platelet-rich plasma (PRP) has emerged as a promising treatment for androgenetic alopecia (AGA). In spite of the several studies previously reported, to date, a standardized protocol for PRP preparation and application, as well as a standard method for evaluating results has not been established. Aims: The aim of this study is to propose a standardized method for preparation and application of PRP for male AGA (MAGA) and female AGA (FAGA) and assess its safety and efficacy as a co-adjuvant therapy...
October 2017: International Journal of Trichology
https://www.readbyqxmd.com/read/29110315/nad-p-h-quinone-oxidoreductase-1-silencing-aggravates-hormone-induced-prostatic-hyperplasia-in-mice
#15
H-T Kim, Y-J Kim, S-R Park, S-Y Ryu, J-Y Jung
NAD(P)H-quinone oxidoreductase 1 (NQO1) is a highly inducible flavoprotein known to involve in various cellular defence mechanisms. In this study, we explored whether NQO1 deletion affects hormone-induced prostatic hyperplasia. Testosterone propionate (3 mg/kg, IP) was injected into wild-type (WT) and NOQ1 knockout C57BL/6 mice (NQO1(-/-) ) for 14 consecutive days, and the samples were collected for biological and histochemical studies. The testosterone-treated NQO1(-/-) showed about 140% higher prostate weight than the testosterone-treated WT, with enhanced connective tissue and hyperplastic glands formations...
November 6, 2017: Andrologia
https://www.readbyqxmd.com/read/29090364/hematuria-and-hematospermia-associated-with-the-use-of-finasteride-for-the-treatment-of-androgenic-alopecia-a-case-report
#16
Abdel-Motaal M Fouda, Anees M Bazeed
In this report we address an unusual adverse effect of finasteride (Propecia 1 mg tablets) that was associated with painless hematuria and hematospermia in a 38-year-old healthy male during treatment of androgenic alopecia at a dose of 1 mg/day. It was found that the bleeding was linked to finasteride use as it occurred 2-3 days after use and stopped upon discontinuation of the drug. The patient was subjected to urological examination, laboratory investigations, and radiological imaging to identify the probable cause of bleeding...
October 31, 2017: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/29066868/protective-effect-of-da-9401-in-finasteride-induced-apoptosis-in-rat-testis-inositol-requiring-kinase-1-and-c-jun-n-terminal-kinase-pathway
#17
Kiran Kumar Soni, Yu Seob Shin, Bo Ram Choi, Keshab Kumar Karna, Hye Kyung Kim, Sung Won Lee, Chul Young Kim, Jong Kwan Park
Finasteride is used to treat male pattern baldness and benign prostatic hyperplasia. This study investigated the toxicity of finasteride and recovery by DA-9401 using Sprague Dawley (SD) rats. Forty adult male SD rats were assigned to four groups: control (CTR), finasteride 1 mg/kg/day (F), finasteride 1 mg/kg + DA-9401 100 mg/kg/day (F + DA 100) and finasteride 1 mg/kg + DA-9401 200 mg/kg/day (F + DA 200). Treatments were by oral delivery once daily for 90 consecutive days. The gross anatomical parameters assessed included: genital organ weight; vas deferens sperm count and sperm motility; testosterone, dihydrotestosterone (DHT) and malondialdehyde levels; and histological and terminal deoxynucleotidyl transferase enzyme mediated dUTP nick-end labeling (TUNEL) staining of testis for spermatogenic cell density, Johnsen's score and apoptosis...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29055953/an-open-label-randomized-multicenter-study-assessing-the-noninferiority-of-a-caffeine-based-topical-liquid-0-2-versus-minoxidil-5-solution-in-male-androgenetic-alopecia
#18
Rachita Dhurat, Jill Chitallia, Theodor W May, Ammani M Jayaraaman, Jithendriya Madhukara, Subbu Anandan, Pradyumna Vaidya, Adolf Klenk
BACKGROUND: Androgenetic alopecia is a condition with a high prevalence worldwide and affects both males and females. Currently, only 2 approved treatments exist: finasteride (males only) and minoxidil 2 or 5% solution (males and females). METHODS: We conducted a randomized, open-label, multicenter noninferiority study to determine whether a caffeine-based 0.2% topical liquid would be no less effective than minoxidil 5% solution in males (n = 210) with androgenetic alopecia...
October 21, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/29039509/evaluation-of-a-novel-dry-eye-model-induced-by-oral-administration-of-finasteride
#19
Kai Li, Chuanwei Zhang, Zichao Yang, Yuliang Wang, Haipeng Si
Dry eye is a common eye disease, and suitable animal models are indispensable for investigating the pathogenesis and developing treatments for dry eye. The present study was conducted to develop an androgen deficiency dry eye model induced by finasteride, and to evaluate ocular surface status and inflammatory cytokine gene expression in the lacrimal gland using a cytokine antibody array system. The results revealed that the antiandrogenic drug finasteride induced significant tear deficiency, and the histopathology results revealed significant inflammatory cell infiltration in the lacrimal gland...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29036252/efficacy-of-isotretinoin-and-acitretin-in-treatment-of-frontal-fibrosing-alopecia-retrospective-analysis-of-54-cases
#20
Adriana Rakowska, Agnieszka Gradzińska, Małgorzata Olszewska, Lidia Rudnicka
This study aimed to assess the efficacy of systemic retinoids in treating frontal fibrosing alopecia (FFA). It was based on a retrospective analysis of 54 female patients with FFA treated with: oral isotretinoin at the daily dose of 20 mg (29/54) or acitretin at the daily dose of 20 mg (11/54) or with oral finasteride 5 mg/daily (14/54). The study was conducted between 2007 and 2017. The basic of the study is the measurement of distance between the frontal hairline and the glabellar crease prior to the commencement of treatment and after 6, 12, and 24 months...
October 1, 2017: Journal of Drugs in Dermatology: JDD
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