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Androgenetic alopecia prostate cancer

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https://www.readbyqxmd.com/read/27601858/an-observational-study-of-the-association-between-androgenetic-alopecia-and-size-of-the-prostate
#1
Kanagaraj Ramsamy, Radhakrishnan Subramaniyan, Anjan Kumar Patra
INTRODUCTION: Androgenetic alopecia (AGA) is characterized by miniaturization of the hair follicle, leading to vellus transformation of the terminal hair follicle. It is caused by interactions between androgens, several genes, and environmental factors with hair follicles. Benign prostatic hyperplasia (BPH) is highly prevalent among elderly men but infrequent in those younger than 40 years. Because both entities share a common pathogenesis and AGA manifests before the onset of BPH, there could be an association between AGA and BPH...
April 2016: International Journal of Trichology
https://www.readbyqxmd.com/read/25527978/quality-evaluation-of-the-finasteride-polymorphic-forms-i-and-ii-in-capsules
#2
Lucélia Magalhães da Silva, Cristina Martiniano Montanari, Olimpia Maria Martins Santos, Edith Cristina Laignier Cazedey, Marilene Lopes Ângelo, Magali Benjamin de Araújo
Finasteride (FNS) is a specific competitive inhibitor of steroid type-II 5α-reductase and is widely used for the treatment of benign prostatic hyperplasia, prostate cancer, and androgenetic alopecia. FNS has two polymorphic forms identified as Form I and Form II. It is known that polymorphism can cause significant differences in the physicochemical properties of a compound such as melting point, density, morphology, solubility, and color. Thus, proper qualitative and quantitative monitoring of the solid-state forms is crucial to ensure high-quality products...
February 2015: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/24742982/minoxidil-may-suppress-androgen-receptor-related-functions
#3
Cheng-Lung Hsu, Jai-Shin Liu, An-Chi Lin, Chih-Hsun Yang, Wen-Hung Chung, Wen-Guey Wu
Although minoxidil has been used for more than two decades to treat androgenetic alopecia (AGA), an androgen-androgen receptor (AR) pathway-dominant disease, its precise mechanism of action remains elusive. We hypothesized that minoxidil may influence the AR or its downstream signaling. These tests revealed that minoxidil suppressed AR-related functions, decreasing AR transcriptional activity in reporter assays, reducing expression of AR targets at the protein level, and suppressing AR-positive LNCaP cell growth...
April 30, 2014: Oncotarget
https://www.readbyqxmd.com/read/24665929/androgenetic-alopecia-and-polymorphism-of-the-androgen-receptor-gene-snp-rs6152-in-patients-with-benign-prostate-hyperplasia-or-prostate-cancer
#4
R Kucerova, M Bienova, M Kral, J Bouchal, K S Trtkova, A Burdova, V Student, Z Kolar
BACKGROUND: Both androgenetic alopecia (AGA) and carcinoma of the prostate (CaP) or benign prostatic hyperplasia (BPH) are androgen-dependent disorders. OBJECTIVE: To investigate the relationships between male androgenetic alopecia, androgen receptor (AR) gene polymorphism (SNP rs6152) and clinical characteristics of BPH and prostate cancer. METHODS: Overall, 309 male subjects with prostate disease (BPH or CaP) were examined. We evaluated the standard grades of AGA (I-VII) by Hamilton-Norwood classification and 195 patients were also assessed by phototrichogram...
January 2015: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/24496985/the-inhibitory-effect-of-scutellaria-baicalensis-extract-and-its-active-compound-baicalin-on-the-translocation-of-the-androgen-receptor-with-implications-for-preventing-androgenetic-alopecia
#5
Ah-Reum Kim, Su-Na Kim, In-Keun Jung, Hyun-Hee Kim, Young-Ho Park, Won-Seok Park
Androgens affect several human skin and prostate functions, and the androgen receptor is crucial for regulating the androgen-related mechanisms. In this study, we assessed the antagonizing effects of a Scutellaria baicalensis extract and its main component baicalin on proliferation of human scalp dermal papilla cells. First, the extract and baicalin slightly dissociated the radioisotope-labeled androgen receptor-agonist complex in the androgen receptor binding assay, and the IC50 values were measured to assess the androgen receptor antagonistic effect of the extract (93 µg/mL) and baicalin (54...
February 2014: Planta Medica
https://www.readbyqxmd.com/read/23651036/preventive-effects-of-monascus-on-androgen-related-diseases-androgenetic-alopecia-benign-prostatic-hyperplasia-and-prostate-cancer
#6
Hui-Wen Chiu, Mei-Huei Chen, Wen-Hung Fang, Ching-Ming Hung, Yen-Lin Chen, Ming-Der Wu, Gwo-Fang Yuan, Ming-Jiuan Wu, Ying-Jan Wang
Androgen-related diseases impair the well-being of many aging men. Unfortunately, the medications used to treat these diseases have many side effects. Therefore, there is a significant need for the development of novel drugs to treat androgen-related diseases. In this study, we investigated the effects of Monascus cursory extraction (M-CE) on androgen-related diseases, including androgenetic alopecia (AGA), benign prostatic hyperplasia (BPH) and prostate cancer. We found that M-CE suppressed baldness in male B6CBAF1/j mice...
May 8, 2013: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/23529469/androgenetic-alopecia-at-various-ages-and-prostate-cancer-risk-in-an-equal-access-multiethnic-case-control-series-of-veterans
#7
Jean-Alfred Thomas, Jodi A Antonelli, Lionel L Banez, Catherine Hoyo, Delores Grant, Wendy Demark-Wahnefried, Elizabeth A Platz, Leah Gerber, Kathryn Shuler, Enwono Eyoh, Elizabeth Calloway, Stephen J Freedland
PURPOSE: Epidemiological data are conflicting regarding the association between androgenetic alopecia (AA) and prostate cancer (CaP). We examined the relationship between these two conditions. MATERIALS AND METHODS: We performed a case-control study at a Veterans Affairs Hospital among 708 men: 312 healthy controls, 167 men with CaP, and 229 men without CaP on prostate biopsy. Participants were asked to self-describe hair patterns at ages 30 and 40 and at study enrollment...
May 2013: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/23395589/androgenetic-alopecia-and-risk-of-prostate-cancer-a-systematic-review-and-meta-analysis
#8
REVIEW
Aline Amoretti, Humberto Laydner, Wilma Bergfeld
BACKGROUND: Androgenetic alopecia (AGA) is a genetically determined skin condition strongly age dependent and androgens are assumed to play an important role in its development. A link between AGA and prostate cancer has been hypothesized because of their similar risk factors. OBJECTIVE: We sought to systematically review the evidence available on the association between AGA and risk of prostate cancer. METHODS: We searched the electronic databases MEDLINE and Cochrane for studies examining the association between AGA and risk of prostate cancer...
June 2013: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/23074289/age-dependent-associations-between-androgenetic-alopecia-and-prostate-cancer-risk
#9
David C Muller, Graham G Giles, Rod Sinclair, John L Hopper, Dallas R English, Gianluca Severi
BACKGROUND: Both prostate cancer and androgenetic alopecia are strongly age-related conditions that are considered to be androgen dependent, but studies of the relationship between them have yielded inconsistent results. We aimed to assess whether androgenetic alopecia at ages 20 and 40 years are associated with risk of prostate cancer. METHODS: At a follow-up of the Melbourne Collaborative Cohort Study, men were asked to assess their hair pattern at ages 20 and 40 years relative to eight categories in showcards...
February 2013: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/21967250/differential-expression-analysis-of-balding-and-nonbalding-dermal-papilla-micrornas-in-male-pattern-baldness-with-a-microrna-amplification-profiling-method
#10
H R Goodarzi, A Abbasi, M Saffari, M Fazelzadeh Haghighi, M B Tabei, M R Noori Daloii
BACKGROUND:   Male pattern baldness or androgenetic alopecia is a common disorder affecting almost 50% of men throughout their lifetime, with androgens and genetics having significant contributing aetiologies. In contrast to the positive regulatory effect of androgens on body hair growth, they are thought to alter scalp hair follicle behaviour pathophysiologically, leading to male pattern baldness. However, the exact mechanisms of this paradoxical action have not yet been elucidated...
May 2012: British Journal of Dermatology
https://www.readbyqxmd.com/read/20927233/reliability-of-hamilton-norwood-classification
#11
M Guarrera, P Cardo, P Arrigo, A Rebora
BACKGROUND: Hamilton-Norwood scale (HNS) has been largely used to assess clinically the severity of androgenetic alopecia (AGA), especially for therapeutical trials and even to establish its association with important diseases such as ischemic heart disease and prostate cancer. OBJECTIVE: To study HNS reproducibility in the hands of dermatologists and dermatology residents. MATERIALS AND METHODS: Seven dermatologists and 16 residents in dermatology classified 43 photographs of male heads with different degrees of AGA...
July 2009: International Journal of Trichology
https://www.readbyqxmd.com/read/20868409/therapeutic-hotline-treatment-of-androgenic-alopecia-with-finasteride-may-result-in-a-high-grade-prostate-cancer-in-patients-fact-or-fiction
#12
REVIEW
Rikk Lynn, Aleksandar Krunic
Finasteride at a dose of 1 mg (Propecia®) has been used for the treatment of androgenic alopecia in men. Though finasteride has been successfully used, there is ongoing controversy surrounding its use since the publication of the Prostate Cancer Prevention Trial (PCPT) which includes claims of increased risk for higher grade prostate cancers. This has produced confusion on consulting and treatment of patients interested in starting finasteride for androgenic alopecia. We felt there was a need to clarify further the results of PCPT for our readers and help understanding the real risk of prostate cancer development of patients on finasteride...
September 2010: Dermatologic Therapy
https://www.readbyqxmd.com/read/20300369/serenoa-repens-does-it-have-any-role-in-the-management-of-androgenetic-alopecia
#13
Sundaram Murugusundram
Serenoa repens is one among the many naturally occurring 5 alpha reductase (5aR) inhibitors which has gained popularity as a magical remedy for androgenetic alopecia. It is widely advertised on the web and sold by direct marketing. Used as a self-medication, there is a risk of missing the early detection of prostate cancer. There is little evidence to support its efficacy, warranting larger clinical trials on androgenetic alopecia.
January 2009: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/20300365/finasteride-its-impact-on-sexual-function-and-prostate-cancer
#14
B Anitha, Arun C Inamadar, S Ragunatha
Finasteride, a specific and competitive inhibitor of 5alpha-reductase enzyme Type 2, inhibits the conversion of testosterone to dihydrotestosterone (DHT). In adults, DHT acts as primary androgen in prostate and hair follicles. The only FDA-approved dermatological indication of finasteride is androgenetic alopecia. But, apprehension regarding sexual dysfunction associated with finasteride deters dermatologists from prescribing the drug and patients from taking the drug for androgenetic alopecia. Testosterone, through its humoral endocrine and local paracrine effects is relevant in central and peripheral modulation of sexual function than locally acting DHT...
January 2009: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/19821055/micrornas-take-part-in-pathophysiology-and-pathogenesis-of-male-pattern-baldness
#15
Hamed R Goodarzi, Ali Abbasi, Mojtaba Saffari, Mohammad B Tabei, Mohammad R Noori Daloii
Male Pattern Baldness (MPB) or androgenetic alopecia is a common form of hair loss with androgens and genetics having etiological significance. Androgens are thought to pathophysiologically power on cascades of chronically dramatic alterations in genetically susceptible scalp dermal papillas, specialized cells in hair follicles in which androgens react, and finally resulting in a patterned alopecia. However, the exact mechanisms through which androgens, positive regulators of growth and anabolism in most body sites, paradoxically exert their effects on balding hair follicles, are not yet known...
July 2010: Molecular Biology Reports
https://www.readbyqxmd.com/read/19663790/novel-anti-prostate-cancer-curcumin-analogues-that-enhance-androgen-receptor-degradation-activity
#16
REVIEW
Q Shi, C C-Y Shih, K H Lee
The androgen receptor (AR) plays a crucial role in the physiological and pathological functions of androgen. As a transcription factor, the AR modulates androgen activity by regulating the transcription of target genes that are involved in numerous physiological functions and pathological disorders, such as acne vulgaris, androgenetic alopecia, benign prostate hyperplasia (BPH), and prostate cancers. Although many natural and synthetic curcumin analogues have been reported to possess anticancer activity through a common cytotoxic property against proliferating tumor cells, none has been reported to inhibit cancer cell growth through a more specific mechanism or target in the cancer cells...
October 2009: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/18161632/development-of-liposomal-systems-of-finasteride-for-topical-applications-design-characterization-and-in-vitro-evaluation
#17
Rajiv Kumar, Bhupinder Singh, Gautam Bakshi, Om Prakash Katare
Finasteride (FNS) is a "drug of choice" for benign prostate hypertrophy and prostate cancer. The drug has also been reported to be useful orally in the treatment of some difficult-to-treat androgen-dependent skin disorders, such as seborrhea, acne, hirsutism, and androgenetic alopecia. However, the ideal route for its administration (i.e., topical) remains unexplored. This has logically suggested the search for strategic formulation approaches to make the drug effective on topical applications, hitherto unexplored...
2007: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/17136762/5alpha-reductase-type-2-gene-variant-associations-with-prostate-cancer-risk-circulating-hormone-levels-and-androgenetic-alopecia
#18
COMPARATIVE STUDY
Vanessa M Hayes, Gianluca Severi, Emma J D Padilla, Howard A Morris, Wayne D Tilley, Melissa C Southey, Dallas R English, Robert L Sutherland, John L Hopper, Peter Boyle, Graham G Giles
Controversy exists over the significance of associations between the SRD5A2 (5alpha-reductase type 2) polymorphisms, A49T and V89L, and risk of prostate cancer. These potentially functional polymorphisms may alter life-long exposure to androgens with subsequent effects on male health and aging. The aim of this study was to examine the association of these variants with prostate cancer risk, plasma hormone levels and androgenetic alopecia. Subjects include 827 cases and 736 controls from an Australian population-based case-control study of prostate cancer...
February 15, 2007: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/15824176/the-e211-g-a-androgen-receptor-polymorphism-is-associated-with-a-decreased-risk-of-metastatic-prostate-cancer-and-androgenetic-alopecia
#19
Vanessa M Hayes, Gianluca Severi, Sarah A Eggleton, Emma J D Padilla, Melissa C Southey, Robert L Sutherland, John L Hopper, Graham G Giles
The androgen receptor (AR) gene encodes a transcription factor, which mediates androgen action in target tissues, including the prostate. Prostate cancer is androgen dependent, implicating AR in susceptibility to this male condition. Male pattern balding, androgenetic alopecia, has recently been associated with prostate cancer, suggesting shared androgen pathways. The CAG and GGC repeats in the AR have been studied extensively as markers of prostate cancer susceptibility, with inconclusive findings, whereas the AR-E211 G>A polymorphism has been associated with androgenetic alopecia...
April 2005: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/15170594/steroid-sulfatase-inhibitors
#20
REVIEW
Peter Nussbaumer, Andreas Billich
Steroid sulfatase (STS) regulates the local production of estrogens and androgens from systemic precursors in several tissues. The enzyme catalyzes the hydrolysis of the sulfate esters of 3-hydroxy steroids, which are inactive transport or precursor forms of the active 3-hydroxy steroids. STS inhibitors are expected to block the local production and, consequently, to reduce the local levels of the hormones. Therefore, they are considered as potential new therapeutic agents for the treatment of estrogen- and androgen-dependent disorders...
July 2004: Medicinal Research Reviews
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