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Park M, Park SM, Lee H, Kim A, Kim NS, Kim YR, Yi JM, Cha S. KORE-Map 1.0: Korean medicine Omics Resource Extension Map on transcriptome data of tonifying herbal medicine. Sci Data 2024; 11:974. [PMID: 39242618 PMCID: PMC11379693 DOI: 10.1038/s41597-024-03734-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 08/02/2024] [Indexed: 09/09/2024] Open
Abstract
Traditional herbal medicine, rooted in a long history of use in East Asia, combines several herbs to create treatments showing high efficacy with minimal side effects, for specific diseases. Such combination therapies represent a potential reservoir of new drugs for treating multifactorial and incurable chronic diseases. However, the complexity of their mechanisms of action due to the combination of multiple compounds, has limited their research integration into modern pharmacological science. To address this challenge, we constructed drug-induced transcriptome data for herbal medicines through systematic experiments, analyzed with the aid of various omics databases. We introduce KORE-Map 1.0 (Korean medicine Omics Resource Extension Map), the first comprehensive resource of drug-derived transcriptome data for representative tonifying herbal medicines, effective in enhancing the immune system. This dataset aims to provide novel insights into the combinatorial mechanisms of these herbal medicines and to aid in the discovery of new therapeutic targets and indications for various incurable diseases.
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Affiliation(s)
- Musun Park
- Korean Medicine (KM) Data Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Sang-Min Park
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Haeseung Lee
- College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Aeyung Kim
- KM Application Center, Korea Institute of Oriental Medicine, Daegu, Republic of Korea
| | - No Soo Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Yu Ri Kim
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea
| | - Jin-Mu Yi
- KM Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea.
| | - Seongwon Cha
- Korean Medicine (KM) Data Division, Korea Institute of Oriental Medicine, Daejeon, Republic of Korea.
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Anjum MA, Zulfiqar S, Chaudhary AA, Rehman IU, Bullock AJ, Yar M, MacNeil S. Stimulation of hair regrowth in an animal model of androgenic alopecia using 2-deoxy-D-ribose. Front Pharmacol 2024; 15:1370833. [PMID: 38887556 PMCID: PMC11180715 DOI: 10.3389/fphar.2024.1370833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Accepted: 04/24/2024] [Indexed: 06/20/2024] Open
Abstract
Androgenic alopecia (AGA) affects both men and women worldwide. New blood vessel formation can restore blood supply and stimulate the hair regrowth cycle. Recently, our group reported that 2-deoxy-D-ribose (2dDR) is 80%-90% as effective as VEGF in the stimulation of neovascularization in in vitro models and in a chick bioassay. In this study, we aimed to assess the effect of 2dDR on hair growth. We prepared an alginate gel containing 2dDR, polypropylene glycol, and phenoxyethanol. AGA was developed in C57BL6 mice by intraperitoneally injecting testosterone (TE). A dihydrotestosterone (DHT)-treated group was used as a negative control, a minoxidil group was used as a positive control, and we included groups treated with 2dDR gel and a combination of 2dDR and minoxidil. Each treatment was applied for 20 days. Both groups treated with 2dDR gel and minoxidil stimulated the morphogenesis of hair follicles. H&E-stained skin sections of C57BL/6 mice demonstrated an increase in length, diameter, hair follicle density, anagen/telogen ratio, diameter of hair follicles, area of the hair bulb covered in melanin, and an increase in the number of blood vessels. Masson's trichrome staining showed an increase in the area of the hair bulb covered in melanin. The effects of the FDA-approved drug (minoxidil) on hair growth were similar to those of 2dDR (80%-90%). No significant benefit were observed by applying a combination of minoxidil with 2dDR. We conclude that 2dDR gel has potential for the treatment of androgenic alopecia and possibly other alopecia conditions where stimulation of hair regrowth is desirable, such as after chemotherapy. The mechanism of activity of 2dDR remains to be established.
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Affiliation(s)
- Muhammad Awais Anjum
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Saima Zulfiqar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Aqif Anwar Chaudhary
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Ihtesham Ur Rehman
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
- School of Medicine, University of Central Lancashire, Preston, United Kingdom
| | - Anthony J. Bullock
- Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield, United Kingdom
| | - Muhammad Yar
- Interdisciplinary Research Center in Biomedical Materials, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Sheila MacNeil
- Department of Materials Science and Engineering, Kroto Research Institute, University of Sheffield, Sheffield, United Kingdom
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Shaikh S, Ali S, Lim JH, Ahmad K, Han KS, Lee EJ, Choi I. Virtual Insights into Natural Compounds as Potential 5α-Reductase Type II Inhibitors: A Structure-Based Screening and Molecular Dynamics Simulation Study. Life (Basel) 2023; 13:2152. [PMID: 38004292 PMCID: PMC10671996 DOI: 10.3390/life13112152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 11/26/2023] Open
Abstract
Androgenic alopecia (AGA) is a dermatological disease with psychosocial consequences for those who experience hair loss. AGA is linked to an increase in androgen levels caused by an excess of dihydrotestosterone in blood capillaries produced from testosterone by 5α-reductase type II (5αR2), which is expressed in scalp hair follicles; 5αR2 activity and dihydrotestosterone levels are elevated in balding scalps. The diverse health benefits of flavonoids have been widely reported in epidemiological studies, and research interest continues to increase. In this study, a virtual screening approach was used to identify compounds that interact with active site residues of 5αR2 by screening a library containing 241 flavonoid compounds. Here, we report two potent flavonoid compounds, eriocitrin and silymarin, that interacted strongly with 5αR2, with binding energies of -12.1 and -11.7 kcal/mol, respectively, which were more significant than those of the control, finasteride (-11.2 kcal/mol). Molecular dynamic simulations (200 ns) were used to optimize the interactions between compounds and 5αR2 and revealed that the interaction of eriocitrin and silymarin with 5αR2 was stable. The study shows that eriocitrin and silymarin provide developmental bases for novel 5αR2 inhibitors for the management of AGA.
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Affiliation(s)
- Sibhghatulla Shaikh
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (S.S.); (S.A.); (J.H.L.); (K.A.); (E.J.L.)
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Shahid Ali
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (S.S.); (S.A.); (J.H.L.); (K.A.); (E.J.L.)
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Jeong Ho Lim
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (S.S.); (S.A.); (J.H.L.); (K.A.); (E.J.L.)
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Khurshid Ahmad
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (S.S.); (S.A.); (J.H.L.); (K.A.); (E.J.L.)
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Ki Soo Han
- Neo Cremar Co., Ltd., Seoul 05702, Republic of Korea;
| | - Eun Ju Lee
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (S.S.); (S.A.); (J.H.L.); (K.A.); (E.J.L.)
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Inho Choi
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Republic of Korea; (S.S.); (S.A.); (J.H.L.); (K.A.); (E.J.L.)
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Kaiser M, Abdin R, Gaumond SI, Issa NT, Jimenez JJ. Treatment of Androgenetic Alopecia: Current Guidance and Unmet Needs. Clin Cosmet Investig Dermatol 2023; 16:1387-1406. [PMID: 37284568 PMCID: PMC10239632 DOI: 10.2147/ccid.s385861] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/23/2023] [Indexed: 06/08/2023]
Abstract
Androgenetic alopecia (AGA) is the most common cause of hair loss in men and women. Traditionally, topical minoxidil and oral finasteride have been the standard of care yielding mixed results. New treatments such as Low-Level Laser Therapy (LLLT), microneedling, platelet-rich plasma (PRP), and others have been extensively studied in the literature, and the purpose of this review is to provide a comprehensive discussion of the latest treatment methods and their efficacy in treating AGA. Novel therapies such as oral minoxidil, topical finasteride, topical spironolactone, botulinum toxin, and stem cell therapy offer interesting alternatives to standard of care therapies for patients. In this review, we present data from recent studies on the clinical efficacy of these treatments. Furthermore, as new treatments have emerged, clinicians have tested combination therapies to assess whether there may be a synergistic relationship between multiple modalities. While there has been a great increase in the treatments available for AGA, the quality of evidence varies greatly and there is still a great need for randomized double blinded clinical trials to adequately assess the clinical efficacy of some treatments. While PRP and LLLT have demonstrated encouraging results, standardized treatment protocols are needed to adequately inform clinicians on how to use such therapies. Given the abundance of new therapeutic options, clinicians and patients must weigh the benefits and risks of each treatment option for AGA.
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Affiliation(s)
- Michael Kaiser
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Rama Abdin
- Charles E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Simonetta I Gaumond
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Naiem T Issa
- Forefront Dermatology, Vienna, VA, USA
- Issa Research and Consulting, LLC, Springfield, VA, USA
| | - Joaquin J Jimenez
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
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Topical Delivery of Atraric Acid Derived from Stereocaulon japonicum with Enhanced Skin Permeation and Hair Regrowth Activity for Androgenic Alopecia. Pharmaceutics 2023; 15:pharmaceutics15020340. [PMID: 36839662 PMCID: PMC9960134 DOI: 10.3390/pharmaceutics15020340] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Atraric acid (AA) is a phenolic compound isolated from Stereocaulon japonicum that has demonstrated anti-androgen properties and was used to design an alternative formulation for the treatment of alopecia. This new topical formulation was designed using a solvent mixture system composed of ethanol as a volatile vehicle, oleic acid as a permeation enhancer, and water for skin hydration. The ideal topical AA formulation (AA-TF#15) exhibited an 8.77-fold higher human skin flux and a 570% increase in dermal drug deposition, compared to 1% (w/w) AA in ethanol. In addition, compared to other formulations, AA-TF#15 (1% [w/w] AA) activated keratinocytes and human dermal papilla cell proliferation at a concentration of 50 µM AA, which is equivalent to 50 µM minoxidil. Moreover, AA-TF#15 treatment produced a significant increase in hair regrowth by 58.0% and 41.9% compared to the 1% (w/w) minoxidil and oral finasteride (1 mg/kg)-treated mice. In addition, AA-TF#15 showed a higher expression level of aldehyde dehydrogenase 1, β-catenin, cyclin D1, and pyruvate kinase M2 proteins in the skin of AA-TF#15-treated mice compared to that of those treated with minoxidil and oral finasteride. These findings suggest AA-TF#15 is an effective formulation for the treatment of scalp androgenic alopecia.
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OH JW, Yun Y, Lee ES. A Review of Gender-Affirming Hormone Therapy for Transgender and Gender Diverse Adults in South Korea. J Menopausal Med 2022; 28:92-102. [PMID: 36647272 PMCID: PMC9843037 DOI: 10.6118/jmm.22039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/21/2022] [Accepted: 12/21/2022] [Indexed: 01/14/2023] Open
Abstract
Recently, gender-affirming hormone therapy for gender incongruence has become an issue in various countries and organizations with various guidelines. In South Korea, several clinical treatments are also used with many possible options. These treatments include masculinizing (female-to-male [FTM]) or feminizing (male-to-female [MTF]) hormone therapies, with regimens usually driven by standards of hormonal replacement therapy for hypogonadism (i.e., hypogonadal natal men and postmenopausal women). This cross-sex hormone therapy can change patients' physical appearance to better match their gender identity and expression. Regarding masculinizing therapy, injection and transdermal gel types of testosterone are used according to international guidelines. Progesterone is utilized in the form of oral pills, injections, or intrauterine devices to suppress menstruation and avoid pregnancy. Essentially, feminizing therapy uses androgen blockers along with estrogen. This is because estrogen alone cannot exert sufficient androgen-suppressing effects. In South Korea, the most commonly used androgen blockers are spironolactone and cyproterone acetate. Gonadotropin-releasing hormone (GnRH) agonist is also available. Regarding estrogen, oral pills, injections, and transdermal gels are utilized. This review introduces these gender-affirming hormone therapies in South Korea and discusses the side effects of each regimen.
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Affiliation(s)
- Jeong-Won OH
- Department of Obstetrics and Gynecology, Soon Chun Hyang University Seoul Hospital, Soon Chun Hyang University College of Medicine, Seoul, Korea
| | - Yeoul Yun
- Department of Obstetrics and Gynecology, Soon Chun Hyang University Seoul Hospital, Soon Chun Hyang University College of Medicine, Seoul, Korea
| | - Eun Sil Lee
- Department of Obstetrics and Gynecology, Soon Chun Hyang University Seoul Hospital, Soon Chun Hyang University College of Medicine, Seoul, Korea
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Muacevic A, Adler JR. Biomaterials for Treatment of Baldness. Cureus 2022; 14:e31187. [PMID: 36505112 PMCID: PMC9727726 DOI: 10.7759/cureus.31187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 11/07/2022] [Indexed: 11/09/2022] Open
Abstract
Androgenic alopecia affects men and women today, where many factors can be the unknown cause of it. It is essential to find a good, effective, and inexpensive treatment for it, as it is a prevalent dermatological condition. Many drugs like minoxidil (MXD) and finasteride (FNS) are commercially used for its treatment but we are still lacking in terms of a complete cure for alopecia. In this study, we came up with different treatment options for alopecia and assessed their advantages and disadvantages. Not only is the treatment part is essential, but the mode of drug delivery is equally important when it comes to hair and its growth for the maximum output. The following discussion considers the idea of nanoparticles (NPs) loaded with drugs and biomaterials used for the treatment of alopecia.
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Isolation and HPLC Quantitative Determination of 5α-Reductase Inhibitors from Tectona grandis L.f. Leaf Extract. Molecules 2022; 27:molecules27092893. [PMID: 35566245 PMCID: PMC9101728 DOI: 10.3390/molecules27092893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/26/2022] [Accepted: 04/28/2022] [Indexed: 12/03/2022] Open
Abstract
Steroid 5α-reductase plays a crucial role in catalyzing the conversion of testosterone to dihydrotestosterone, which is involved in many androgen-dependent disorders. Leaf-hexane extract from Tectona grandis L.f. has shown promise as a 5α-reductase inhibitor. The objectives of this current study were to isolate and identify 5α-reductase inhibitors from T. grandis leaves and to use them as the bioactive markers for standardization of the extract. Three terpenoid compounds, (+)-eperua-8,13-dien-15-oic acid (1), (+)-eperua-7,13-dien-15-oic acid (2), and lupeol (3), were isolated and evaluated for 5α-reductase inhibitory activity. Compounds 1 and 2 exhibited potent 5α-reductase inhibitory activity, while 3 showed weak inhibitory activity. An HPLC method for the quantitative determination of the two potent inhibitors (1 and 2), applicable for quality control of T. grandis leaf extracts, was also developed. The ethanolic extract showed a significantly higher content of 1 and 2 than found in the hexane extract, suggesting that ethanol is a preferable extraction solvent. This study is the first reported isolation of 5α-reductase inhibitors (1 and 2) from T. grandis leaves. The extraction and quality control methods that are safe and useful for further development of T. grandis leaf extract as an active ingredient for hair loss treatment products are also reported.
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Leem SW, Kim MK, Ko SL, Jeong HI, Kim KH. Literature Review on Korean Medicine Treatment for Alopecia. J Pharmacopuncture 2021; 24:93-106. [PMID: 34631192 PMCID: PMC8481674 DOI: 10.3831/kpi.2021.24.3.93] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/22/2021] [Accepted: 08/23/2021] [Indexed: 11/12/2022] Open
Abstract
This study aimed to analyze the use of Korean medicine treatments for alopecia in among clinical studies. We identified and analyzed 22 studies from Korean databases; Oriental Medicine Advanced Searching Integrated System (OASIS), Science ON, Korean Studies Information Service System (KISS), and Research Information Sharing Service (RISS) and international database; PubMed. We analyzed the Korean medical treatment in each case and determined the tendency to use each intervention. We analyzed 1,464 patients from 22 selected studies. Herbal medicine, acupuncture, external medicine or products, pharmacopuncture, and phototherapy were used for alopecia treatment. The herbal medicines mainly used to treat alopecia were Gagam Cheongyoung-tang, Gagam Hwajung-hwan, and Yukmijihwang-tang·hwan. The acupoints primarily used were GV20, EX-HN1, GB5, KI3, PC6, ST36, GV22, and A-shi. The most commonly used pharmacopuncture therapies were Hwangryunhaedoktang (HH), Carthami Fructus (CF), Bee Venom (BV), and Hominis placenta (HP). The Korean medical treatment for alopecia improved the condition of patients. However, seven studies reported the occurrence of side effects such as pruritus, dazed, drowsiness, headache, pain, and diarrhea. This study shows the potential of Korean medicine for the treatment of alopecia. Further studies with a large sample size and long-term follow-up are warranted to establish the primary treatment guidelines and objective outcome measures for alopecia.
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Affiliation(s)
- Seul Woo Leem
- Korean Mecince, College of Korean Medicine, Woosuk University, Wanju, Republic of Korea
| | - Min Kyeong Kim
- Korean Mecince, College of Korean Medicine, Woosuk University, Wanju, Republic of Korea
| | - Seo Lim Ko
- Korean Mecince, College of Korean Medicine, Woosuk University, Wanju, Republic of Korea
| | - Hye In Jeong
- Department of Preventive Medicine, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Kyeong Han Kim
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju, Republic of Korea.,Department of Preventive Medicine, College of Korean Medicine, Woosuk University, Wanju, Republic of Korea
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Ryu YC, Lee DH, Shim J, Park J, Kim YR, Choi S, Bak SS, Sung YK, Lee SH, Choi KY. KY19382, a novel activator of Wnt/β-catenin signalling, promotes hair regrowth and hair follicle neogenesis. Br J Pharmacol 2021; 178:2533-2546. [PMID: 33751552 PMCID: PMC8251890 DOI: 10.1111/bph.15438] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 02/25/2021] [Accepted: 02/28/2021] [Indexed: 01/01/2023] Open
Abstract
Background and Purpose The promotion of hair regeneration and growth heavily depends on the activation of Wnt/β‐catenin signalling in the hair follicle, including dermal papilla (DP). KY19382, one of the newly synthesized analogues of indirubin‐3′‐monoxime (I3O), was identified as a Wnt/β‐catenin signalling activator via inhibition of the interaction between CXXC‐type zinc finger protein 5 (CXXC5) and dishevelled (Dvl). Given the close relationship between the Wnt/β‐catenin signalling and hair regeneration, we investigated the effect of KY19382 on hair regrowth and hair follicle neogenesis. Experimental Approach In vitro hair induction effects of KY19382 were performed in human DP cells. The hair elongation effects of KY19382 were confirmed through the human hair follicle and vibrissa culture system. In vivo hair regeneration abilities of KY19382 were identified in three models: hair regrowth, wound‐induced hair follicle neogenesis (WIHN) and hair patch assays using C57BL/6 mice. The hair regeneration abilities were analysed by immunoblotting, alkaline phosphatase (ALP) and immunohistochemical staining. Key Results KY19382 activated Wnt/β‐catenin signalling and elevated expression of ALP and the proliferation marker PCNA in DP cells. KY19382 also increased hair length in ex vivo‐cultured mouse vibrissa and human hair follicles and induced hair regrowth in mice. Moreover, KY19382 significantly promoted the generation of de novo hair follicles as shown by WIHN and hair patch assays. Conclusion and Implications These results indicate that KY19382 is a potential therapeutic drug that exhibits effective hair regeneration ability via activation of the Wnt/β‐catenin signalling for alopecia treatments.
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Affiliation(s)
- Yeong Chan Ryu
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Dong-Hwan Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Jiyong Shim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Jiyeon Park
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - You-Rin Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Sehee Choi
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea
| | - Soon Sun Bak
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Young Kwan Sung
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu, Korea
| | | | - Kang-Yell Choi
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, Korea.,CK Biotech Inc, Engineering Research Park, Seoul, Korea
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11
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Development of Pigmentation-Regulating Agents by Drug Repositioning. Int J Mol Sci 2021; 22:ijms22083894. [PMID: 33918792 PMCID: PMC8069425 DOI: 10.3390/ijms22083894] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/06/2021] [Accepted: 04/07/2021] [Indexed: 01/10/2023] Open
Abstract
Skin color is determined by the processes of melanin synthesis and distribution. Problems in various molecules or signaling pathways involved in melanin synthesis contribute to skin pigmentation defects. Several trials have been conducted on the production of pigmentation-regulating agents, and drug repositioning has emerged as a modern technique to identify new uses for existing drugs. Our research team has researched substances or drugs associated with pigmentation control and, as a result, nilotinib, sorafenib, and ICG-001 have been found to promote pigmentation, while 5-iodotubercidin inhibits pigmentation. Therefore, these substances or medications were suggested as potential therapeutics for pigmentation disorders by drug repositioning.
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12
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Alsalhi W, Tosti A. Androgenetic Alopecia in a Patient with Klinefelter Syndrome: Case Report and Literature Review. Skin Appendage Disord 2020; 7:135-138. [PMID: 33796561 DOI: 10.1159/000512224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 09/28/2020] [Indexed: 11/19/2022] Open
Abstract
Introduction Klinefelter syndrome (KS) is defined as (a chromosomal disorder in which males have an extra X chromosome). KS presents clinically with signs of androgen deficiency including low testosterone. Androgenetic alopecia (AGA) develops as a response of the hair follicle cells to androgens in individuals with genetic predisposition. Case Presentation We describe a 17-year-old male patient with KS who developed AGA with a Ludwig pattern. Conclusion Our patient had a good response to oral minoxidil, finasteride, and low-level light therapy.
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Affiliation(s)
- Waleed Alsalhi
- Department of Dermatology, College of Medicine, Majmaah University, Al-Majmaah, Saudi Arabia
| | - Antonella Tosti
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Florida, USA
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13
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Sohng C, Lee EH, Woo SK, Kim JY, Park KD, Lee SJ, Lee WJ. Usefulness of home-use microneedle devices in the treatment of pattern hair loss. J Cosmet Dermatol 2020; 20:591-596. [PMID: 32516497 DOI: 10.1111/jocd.13540] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/10/2020] [Accepted: 06/02/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Microneedle devices have been used to reduce scarring and wrinkling as well as for the treatment of pattern hair loss. AIMS Here, we investigated the efficacy and safety of a newly developed home-use microneedle device for the treatment of pattern hair loss. METHODS Twenty-nine patients were assigned into three groups based on block randomization: home-use microneedle device only, a combination of home-use microneedle device and 5% minoxidil solution and 5% minoxidil topical solution only. Each treatment was performed twice a week. The study outcomes included hair counts, patient self-assessments, and adverse events at baseline and at 6 months. Statistical analyses were performed using analysis of variance (ANOVA), repeated measures ANOVA and Kruskal-Wallis test. RESULTS The improvements in hair count were seen in the combination group at month 6, but the differences observed did not reach statistical significance in each group and among the three groups. The patient self-assessment showed the highest score in the combination group, but it did not reveal a statistically significant difference among the three groups. Mild and transient pruritus were reported by one patient who was using the microneedle device only. CONCLUSIONS Our study shows that the home-use microneedle device may be a safe and 5% minoxidil solution penetration-enhancing therapeutic modality for stimulating hair growth.
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Affiliation(s)
- Chihyeon Sohng
- Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Eun Hye Lee
- Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Soo Kyeong Woo
- Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Jun Young Kim
- Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Kyung Duck Park
- Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Seok-Jong Lee
- Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
| | - Weon Ju Lee
- Department of Dermatology, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea
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Kim S, Eum J, Yang H, Jung H. Transdermal finasteride delivery via powder-carrying microneedles with a diffusion enhancer to treat androgenetic alopecia. J Control Release 2019; 316:1-11. [DOI: 10.1016/j.jconrel.2019.11.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/27/2019] [Accepted: 11/01/2019] [Indexed: 12/15/2022]
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Meta-Analysis on the Efficacy and Safety of Traditional Chinese Medicine as Adjuvant Therapy for Refractory Androgenetic Alopecia. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:9274148. [PMID: 31781285 PMCID: PMC6875197 DOI: 10.1155/2019/9274148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 07/05/2019] [Accepted: 07/07/2019] [Indexed: 11/23/2022]
Abstract
Objective Traditional Chinese medicine (TCM) therapies have been widely used for the treatment of androgenetic alopecia (AGA) for thousands of years. We conducted a meta-analysis to evaluate the curative efficacy and safety of TCM for treating AGA. Methods Randomized controlled trials (RCTs) of TCM for the treatment of AGA through March 2019 were systematically identified in 4 English databases, namely, PubMed, Cochrane Library, EMBASE, and Web of Science, and 4 Chinese databases, namely, Sino-Med, China National Knowledge Infrastructure (CNKI), China Science and Technology Journal Database (VIP), and WanFang. Quality assessment and data analysis were performed by Review Manager 5.3.5, and Stata 15.1 was used to cope with publication bias. Results 30 RCTs involving 2615 patients were randomly divided into a TCM group and a conventional medicine (CM) group. The results showed that the total efficacy rate (TER) of the TCM group was significantly higher than that of the control group (OR = 3.34, 95% CI = 2.75–4.05, P < 0.00001). The total symptom score (TSS) of the TCM group was markedly reduced when compared with the CM group (SMD = −0.86; 95% CI = −1.19, −0.53; P < 0.00001). The microelement levels (Fe2+, Zn2+, and Cu2+) in hair were significantly improved when complemented with TCM therapy. In addition, no significant differences were observed between the two groups in terms of adverse events (OR = 0.55, 95% CI = 0.29–1.05, P=0.07). Conclusions In view of the effectiveness and safety of TCM, the present meta-analysis suggests that TCM could be recommended as an effective and safe adjuvant therapy for the treatment of AGA by improving the TER, symptoms, serum testosterone levels, and microelement levels. However, long-term and higher-quality RCTs are needed to overcome the limitations of the selected studies and more precisely interrogate the efficacy and safety of TCM.
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Sasaki GH. Review of Human Hair Follicle Biology: Dynamics of Niches and Stem Cell Regulation for Possible Therapeutic Hair Stimulation for Plastic Surgeons. Aesthetic Plast Surg 2019; 43:253-266. [PMID: 30324295 DOI: 10.1007/s00266-018-1248-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/19/2018] [Indexed: 12/13/2022]
Abstract
Plastic surgeons are frequently asked to manage male- and female-pattern hair loss in their practice. This article discusses the epidemiology, pathophysiology, and current management of androgenetic alopecia and emphasizes more recent knowledge of stem cell niches in hair follicles that drive hair cycling, alopecia, and its treatment. The many treatment programs available for hair loss include newer strategies that involve the usage of growth factors, platelet-rich plasma, and fat to stimulate follicle growth. Future research may clarify novel biomolecular mechanisms that target specific cells that promote hair regeneration.Level of Evidence V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Synergistic effect of platelet-rich plasma injections and scalp lifting in androgenetic alopecia. Clin Dermatol 2018; 36:673-679. [DOI: 10.1016/j.clindermatol.2018.03.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Interconnected PolymerS TeChnology (IPSTiC): An Effective Approach for the Modulation of 5α-Reductase Activity in Hair Loss Conditions. J Funct Biomater 2018; 9:jfb9030044. [PMID: 30002324 PMCID: PMC6163819 DOI: 10.3390/jfb9030044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 07/03/2018] [Accepted: 07/10/2018] [Indexed: 11/17/2022] Open
Abstract
Hair loss represents a condition that adversely affects the social life of patients. The most common cause is androgenetic alopecia (AGA), which is a genetically determined progressive hair-loss condition involving 5α-reductase. In this study, a novel anti-baldness agent based on Interconnected PolymerS TeChnology (IPSTiC), which is an effective strategy for the delivery of bioactive molecules, was developed. This product (IPSTiC patch hair) is based on a polymeric blend consisting of high molecular weight hyaluronic acid and soybean proteins and is able to improve efficacy and stability of bioactive ingredients such as Origanum vulgare leaf extract, Camellia Sinensis leaf extract, and Capsicum Annuum fruit extract. The efficacy of the developed anti-baldness agent was investigated by performing several tests including NO radical and 5α-reductase inhibition assays, stability studies under different conditions, and in vitro diffusion studies using Franz cells. The biocompatibility of IPSTiC patch hair was also evaluated by in vitro analysis of the pro-sensitising potential and EPISKIN model. The obtained results confirmed both the efficacy and safety of IPSTiC patch hair supporting the potential use of this product in the topical treatment of AGA.
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Trüeb RM, Vañó-Galván S, Kopera D, Jolliffe VML, Ioannides D, Gavazzoni Dias MFR, Macpherson M, Ruíz Ávila J, Gadzhigoroeva A, Ovcharenko J, Lee WS, Murugusundram S, Kurata S, Chang M, Tanglertsampan C. Trichologist, Dermatotrichologist, or Trichiatrist? A Global Perspective on a Strictly Medical Discipline. Skin Appendage Disord 2018; 4:202-207. [PMID: 30410886 DOI: 10.1159/000488544] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 03/16/2018] [Indexed: 11/19/2022] Open
Abstract
Few dermatologic problems carry as much emotional overtones as the complaint of hair loss. The best way to alleviate the distress related to hair loss is to effectively treat it. In fact, one of the oldest medical professions is the Egyptian physician who specialized on diseases of the head. And yet, from ancient Egypt down to modern times, human hair has been the object of superstition and mystery. Remarkably and despite the genuine advances in effective medical treatments, hair cosmetics, and surgical procedures, phony hair loss solutions continue to be marketed with an amazing success. In 1860, a quasi-scientific interest in hair loss and hair care originated in a London barbershop and became known as trichology, with the Institute of Trichologists being founded. Other corporations successively followed internationally, but it was only in 2010 that the term dermatotrichologist was proposed for board-certified dermatologists dealing with the scientific study of the hair and scalp, in contrast to the trichologist who is rather associated with laity and cosmetics than with medical professionalism, or - worse - offers opportunities to possible imposters with a primary commercial interest. The new term "trichiatrist" is proposed, literally meaning the "medical treatment of the hair," to designate the strictly medical professional dealing with the hair and scalp in health and disease. Trichiatrists differ from trichologists by virtue of being physicians. The quality and stringency of their graduate medical training is identical to that of other physicians.
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Affiliation(s)
- Ralph Michel Trüeb
- Center for Dermatology and Hair Diseases Professor Trüeb and University of Zurich, Zurich, Switzerland
| | | | - Daisy Kopera
- Center of Aesthetic Medicine, Department of Dermatology, Medical University Graz, Graz, Austria
| | | | - Demetrios Ioannides
- 1st Department of Dermatology-Venereology, Hospital of Skin and Venereal Diseases, Aristotle University Medical School, Thessaloniki, Greece
| | - Maria Fernanda Reis Gavazzoni Dias
- Department of Dermatology, Centro de Ciências Médicas, Hospital Universitário Antonia Pedro, Universidade Federal Fluminense, Niterói, Brazil
| | - Melanie Macpherson
- Department of Dermatology and Venereology, San Gabriel Clinic, Lima, Peru
| | | | - Aida Gadzhigoroeva
- Moscow Scientific and Practical Center of Dermatology and Cosmetology, Moscow City Health Department, Moscow, Russian Federation
| | - Julya Ovcharenko
- General and Clinical Immunology and Allergology Department, School of Medicine, V.N. Karazin Kharkiv National University, Kharkiv, Ukraine
| | - Won-Soo Lee
- Department of Dermatology, Wonju College of Medicine, Yonsei University, Gangwon-do, Republic of Korea
| | | | - Sotaro Kurata
- Beppu Garden Hill Clinic and Kurata Clinic, Beppu, Japan
| | - Mimi Chang
- Prince of Wales Hospital and the Chinese University of Hong Kong, Hong Kong, China
| | - Chuchai Tanglertsampan
- Department of Dermatology, Bumrungrad International Hospital, Mae Fah Luang University Hospital, Bangkok, Thailand
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Herman A, Herman AP. Topically used herbal products for the treatment of hair loss: preclinical and clinical studies. Arch Dermatol Res 2017; 309:595-610. [DOI: 10.1007/s00403-017-1759-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 06/26/2017] [Indexed: 11/24/2022]
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21
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Roque LV, Dias IS, Cruz N, Rebelo A, Roberto A, Rijo P, Reis CP. Design of Finasteride-Loaded Nanoparticles for Potential Treatment of Alopecia. Skin Pharmacol Physiol 2017; 30:197-204. [DOI: 10.1159/000475473] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 04/03/2017] [Indexed: 11/19/2022]
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22
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Hair growth promoting effect of white wax and policosanol from white wax on the mouse model of testosterone-induced hair loss. Biomed Pharmacother 2017; 89:438-446. [DOI: 10.1016/j.biopha.2017.02.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 02/01/2017] [Accepted: 02/07/2017] [Indexed: 11/19/2022] Open
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Abstract
Hidradenitis suppurativa (HS) is a chronic inflammatory skin disease characterized by recurrent inflammatory nodules mostly located in the armpits and groin. Over the years multiple treatments for HS have been proposed; however, to date a cure is still lacking. In this update we provide an overview of most drug treatments reported on for HS, where possible with their mode of action and side effects. In mild cases, clindamycin lotion or resorcinol cream have proven effective. Tetracyclines are a first-line systemic option in more widespread or severe cases, followed by the combination of clindamycin and rifampicin. However, the recurrence rate is high after discontinuation of clindamycin plus rifampicin combination therapy. Long-term treatment with retinoids, especially acitretin is feasible, although teratogenicity has to be taken into account in females of reproductive age. Multiple anti-inflammatory drugs have been suggested for HS, such as dapsone, fumarates or cyclosporine. However, their effectiveness in HS is based on small case series with varying results. If most common treatments have failed, biologics (e.g., infliximab or adalimumab) are the next step. Although not addressed in this review, surgical interventions are often needed to achieve remission.
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Affiliation(s)
- I E Deckers
- Department of Dermatology, Erasmus University Medical Center, Burg. s' Jacobplein 51, 3015 CA, Rotterdam, The Netherlands.
| | - E P Prens
- Department of Dermatology, Erasmus University Medical Center, Burg. s' Jacobplein 51, 3015 CA, Rotterdam, The Netherlands.
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Pan MM, Kovac JR. Beyond testosterone cypionate: evidence behind the use of nandrolone in male health and wellness. Transl Androl Urol 2016; 5:213-9. [PMID: 27141449 PMCID: PMC4837307 DOI: 10.21037/tau.2016.03.03] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Characterized by low serum testosterone levels and diverse symptoms, male hypogonadism is a common condition. Current medical treatment focuses on testosterone supplementation using multiple modalities such as injections, gels and pellets. Interestingly, while testosterone is considered an anabolic androgenic steroid, it has not been saddled with the social stigma that other, similar medications have. The goal of this review is to highlight an anabolic steroid, 19-nortestosterone (i.e., nandrolone, deca-durabolin) and illustrate prospective therapeutic applications for male health. Containing a chemical structure similar to testosterone, nandrolone has a higher myotrophic: androgenic ratio resulting in improved effects on muscle mass. Animal models have suggested application in the improvement of joint healing following rotator cuff repair. Minimal literature exists regarding the use of nandrolone and, as such, further human studies are required.
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Affiliation(s)
- Michael M Pan
- 1 Scott Department of Urology, Baylor College of Medicine, Houston, Texas 77030, USA ; 2 Men's Health Center, Urology of Indiana, Indianapolis, Indiana 46260, USA
| | - Jason R Kovac
- 1 Scott Department of Urology, Baylor College of Medicine, Houston, Texas 77030, USA ; 2 Men's Health Center, Urology of Indiana, Indianapolis, Indiana 46260, USA
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Rondanelli M, Perna S, Peroni G, Guido D. A bibliometric study of scientific literature in Scopus on botanicals for treatment of androgenetic alopecia. J Cosmet Dermatol 2015; 15:120-30. [DOI: 10.1111/jocd.12198] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/20/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Mariangela Rondanelli
- Endocrinology and Nutrition Unit; Section of Human Nutrition; Department of Public Health, Experimental and Forensic Medicine; Azienda di Servizi alla Persona; University of Pavia; Pavia Italy
| | - Simone Perna
- Endocrinology and Nutrition Unit; Section of Human Nutrition; Department of Public Health, Experimental and Forensic Medicine; Azienda di Servizi alla Persona; University of Pavia; Pavia Italy
| | - Gabriella Peroni
- Endocrinology and Nutrition Unit; Section of Human Nutrition; Department of Public Health, Experimental and Forensic Medicine; Azienda di Servizi alla Persona; University of Pavia; Pavia Italy
| | - Davide Guido
- Endocrinology and Nutrition Unit; Section of Human Nutrition; Department of Public Health, Experimental and Forensic Medicine; Azienda di Servizi alla Persona; University of Pavia; Pavia Italy
- Medical and Genomic Statistics Unit; Department of Brain and Behavioral Sciences; University of Pavia; Pavia Italy
- Biostatistics and Clinical Epidemiology Unit; Department of Public Health, Experimental and Forensic Medicine; University of Pavia; Pavia Italy
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26
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Begum S, Gu LJ, Lee MR, Li Z, Li JJ, Hossain MJ, Wang YB, Sung CK. In vivo hair growth-stimulating effect of medicinal plant extract on BALB/c nude mice. PHARMACEUTICAL BIOLOGY 2015; 53:1098-1103. [PMID: 25612775 DOI: 10.3109/13880209.2014.959614] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Chrysanthemum zawadskii var. latilobum (Asteraceae) (CZ) and Polygonum multiflorum Thunb. (Polygonaceae) (PM) have been used traditionally to treat different systemic diseases and acclaimed for various biological activities including hair growth. OBJECTIVE This study investigates the hair restoration efficacy of selected medicinal plant extracts on nude mice. MATERIALS AND METHODS Nude mice genetically predisposed to pattern balding were used in this study. Topical methanol extracts of CZ and PM (10 mg/mouse/d) with standardized vehicle formulation, only vehicle (propylene glycol:ethanol:dimethyl sulfoxide, 67:30:3% v/v) and Minoxidil (2%) were applied daily for 40 consecutive days. RESULTS In our study, the maximum hair score (2.5 ± 0.29) was obtained in the CZ-treated group. Histological observation revealed a significant increase (p < 0.001) in the number of hair follicles (HF) in CZ-treated mice (58.66 ± 3.72) and Minoxidil-treated mice (40 ± 2.71). Subsequently, immunohistochemical analysis also confirmed the follicular keratinocyte proliferation by detection of BrdU-labeling, S-phase cells in Minoxidil and CZ-treated mouse follicular bulb and outer root sheaths. CONCLUSION Our study revealed the underlying mechanism of stimulating hair growth in athymic nude mice by repair the nu/nu follicular keratin differentiation defect. Thus, the topical application of CZ may represent a novel strategy for the management and therapy of certain forms of alopecia.
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Affiliation(s)
- Shahnaz Begum
- Department of Food Science and Technology, College of Agriculture and Biotechnology, Chungnam National University , Daejeon , South Korea
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Limpongsa E, Jaipakdee N, Pongjanyakul T. Skin deposition and permeation of finasteridein vitro: effects of propylene glycol, ethanol and sodium lauryl sulfate. Pharm Dev Technol 2014; 20:984-991. [DOI: 10.3109/10837450.2014.954727] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Monti D, Tampucci S, Burgalassi S, Chetoni P, Lenzi C, Pirone A, Mailland F. Topical Formulations Containing Finasteride. Part I: In Vitro Permeation/Penetration Study and In Vivo Pharmacokinetics in Hairless Rat. J Pharm Sci 2014; 103:2307-14. [DOI: 10.1002/jps.24028] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Revised: 05/07/2014] [Accepted: 05/07/2014] [Indexed: 11/09/2022]
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Effect of pumpkin seed oil on hair growth in men with androgenetic alopecia: a randomized, double-blind, placebo-controlled trial. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:549721. [PMID: 24864154 PMCID: PMC4017725 DOI: 10.1155/2014/549721] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 04/04/2014] [Indexed: 11/18/2022]
Abstract
Pumpkin seed oil (PSO) has been shown to block the action of 5-alpha reductase and to have antiandrogenic effects on rats. This randomized, placebo-controlled, double-blind study was designed to investigate the efficacy and tolerability of PSO for treatment of hair growth in male patients with mild to moderate androgenetic alopecia (AGA). 76 male patients with AGA received 400 mg of PSO per day or a placebo for 24 weeks. Change over time in scalp hair growth was evaluated by four outcomes: assessment of standardized clinical photographs by a blinded investigator; patient self-assessment scores; scalp hair thickness; and scalp hair counts. Reports of adverse events were collected throughout the study. After 24 weeks of treatment, self-rated improvement score and self-rated satisfaction scores in the PSO-treated group were higher than in the placebo group (P = 0.013, 0.003). The PSO-treated group had more hair after treatment than at baseline, compared to the placebo group (P < 0.001). Mean hair count increases of 40% were observed in PSO-treated men at 24 weeks, whereas increases of 10% were observed in placebo-treated men (P < 0.001). Adverse effects were not different in the two groups.
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Rao Y, Zheng F, Liang X, Wang H, Zhang J, Lu X. Penetration profile and human cadaver skin distribution of finasteride from vesicular nanocarriers. Drug Deliv 2013; 22:1003-1009. [PMID: 24093547 DOI: 10.3109/10717544.2013.839128] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The skin accumulation of therapeutic agents affects the efficiency of topical drug delivery. In this study, in vitro distribution of finasteride of ethosomes and liposomes in human cadaver skin after percutaneous delivery were investigated. Experiments were performed using modified Franz diffusion cells. Finasteride ethosomes, liposomes or hydroethanolic solutions were used as donor medium. Drug distribution at different skin layers and depths were studied by hotplate separation and frozen horizontal slicing technique. The result showed that the accumulation of finasteride in skin ranged from 9.7-24.3 μg/cm2 at 12 or 24 hours. The ethosomes demonstrated better enhancing ability to deliver finasteride into the dermis layer than liposomes did. The finasteride concentration in the dermis layer from ethosomes was more than sevenfold higher than from liposomes. The finasteride accumulation in ethosomes group showed a distinctive reversed distribution profile. This distinctive reversed distribution profile is meaningful for exerting a favorable pharmacological effect for finasteride. The drug distribution profile in skin layers showed no significant difference between 12 and 24 hours application (p > 0.05). The study demonstrated that finasteride can be accumulated at target site more effectively and maintained at higher level through the application of novel ethosomal carriers.
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Affiliation(s)
- Yuefeng Rao
- a The First Affiliated Hospital, College of Medicine , Zhejiang University , China .,b College of Pharmaceutical Sciences , Zhejiang University , China
| | - Feiyue Zheng
- c Sir Run Run Shaw Hospital, College of Medicine , Zhejiang University , China
| | - Xingguang Liang
- a The First Affiliated Hospital, College of Medicine , Zhejiang University , China
| | - Huiyuan Wang
- d Shanghai Institute of Materia Medica , Chinese Academy of Sciences , China
| | - Jin Zhang
- a The First Affiliated Hospital, College of Medicine , Zhejiang University , China .,b College of Pharmaceutical Sciences , Zhejiang University , China
| | - Xiaoyang Lu
- a The First Affiliated Hospital, College of Medicine , Zhejiang University , China
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Seo SR, Kang G, Ha JW, Kim JC. In vivo hair growth-promoting efficacies of herbal extracts and their cubosomal suspensions. J IND ENG CHEM 2013. [DOI: 10.1016/j.jiec.2012.12.037] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim MJ, Lim C, Lee JY, Im KR, Yoon KS, Song JM. Visible-to-near IR quantum dot-based hypermulticolor high-content screening of herbal medicines for the efficacy monitoring of hair growth promotion and hair loss inhibition. ACTA ACUST UNITED AC 2012. [PMID: 23190736 DOI: 10.1177/1087057112464574] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
There is a growing interest in alopecia prevention strategies, as the number of alopecia patients is increasing. We examine the efficacy of herbal medicine for hair growth promotion/hair loss inhibition in two cell lines via Western blot and high-content screening (HCS). Nine herbal extracts were obtained from three different herbal medicine mixtures using 3 different extraction methods. Five target proteins-IGF-1 (insulin-like growth factor-1), TGF-β2 (transforming growth factor-β2), VEGF (vascular endothelial growth factor), DKK-1 (Dickkopf-1), and Wnt5α-were observed for the assessment of hair growth promotion/hair loss inhibition efficacy. The efficacies of nine extracts were compared with minoxidil as control. Efficacy was defined as a rise in the expression levels of IGF-1, VEGF, and Wnt5α but a decrease in DKK-1 and TGF-β2. Intracellular concurrent imaging of these proteins was successfully achieved using HCS, employing visible-to-near infrared probing based on quantum-antibody conjugates and hypermulticolor imaging.
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Affiliation(s)
- Min Jung Kim
- College of Pharmacy, Seoul National University, Seoul, South Korea
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Abstract
BACKGROUND Drug repositioning is a current strategy to find new uses for existing drugs, patented or not, and for late-stage candidates that failed for lack of efficacy. RESULTS In silico profiling of several marketed drugs (methadone, rapamycin, saquinavir and telmisartan) was performed, exploiting a vast amount of published information. Similar compounds were assessed in terms of target-activity profiles for major drug-target families. In silico profiles were visualized within an interactive heat map and detailed analysis was performed associated with the accessible current knowledge. CONCLUSION Based on a basic principle assuming that similar molecules share similar target activity, new potential targets and, therefore, opportunities of potential new indications have been identified and discussed.
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Chittur S, Parr B, Marcovici G. Inhibition of inflammatory gene expression in keratinocytes using a composition containing carnitine, thioctic Acid and saw palmetto extract. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2011; 2011:985345. [PMID: 19692448 PMCID: PMC3137880 DOI: 10.1093/ecam/nep102] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2008] [Accepted: 07/08/2009] [Indexed: 11/25/2022]
Abstract
Chronic inflammation of the hair follicle (HF) is considered a contributing factor in the pathogenesis of androgenetic alopecia (AGA). Previously, we clinically tested liposterolic extract of Serenoa repens (LSESr) and its glycoside, β-sitosterol, in subjects with AGA and showed a highly positive response to treatment. In this study, we sought to determine whether blockade of inflammation using a composition containing LSESr as well as two anti-inflammatory agents (carnitine and thioctic acid) could alter the expression of molecular markers of inflammation in a well-established in vitro system. Using a well-validated assay representative of HF keratinocytes, specifically, stimulation of cultured human keratinocyte cells in vitro, we measured changes in gene expression of a spectrum of well-known inflammatory markers. Lipopolysaccharide (LPS) provided an inflammatory stimulus. In particular, we found that the composition effectively suppressed LPS-activated gene expression of chemokines, including CCL17, CXCL6 and LTB(4) associated with pathways involved in inflammation and apoptosis. Our data support the hypothesis that the test compound exhibits anti-inflammatory characteristics in a well-established in vitro assay representing HF keratinocyte gene expression. These findings suggest that 5-alpha reductase inhibitors combined with blockade of inflammatory processes could represent a novel two-pronged approach in the treatment of AGA with improved efficacy over current modalities.
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Jaybhaye D, Varma S, Gagne N, bonde V, Gite A, Bhosle D. Effect of Tectona grandis Linn. seeds on hair growth activity of albino mice. Int J Ayurveda Res 2010; 1:211-5. [PMID: 21455447 PMCID: PMC3059442 DOI: 10.4103/0974-7788.76783] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2010] [Accepted: 01/25/2011] [Indexed: 11/05/2022] Open
Abstract
The seeds of Tectona grandis Linn. are traditionally acclaimed as hair tonic in the Indian system of medicine. Studies were therefore undertaken in order to evaluate petroleum ether extract of T. grandis seeds for its effect on hair growth in albino mice. The 5% and 10% extracts incorporated into simple ointment base were applied topically on shaved denuded skin of albino mice. The time required for initiation of hair growth as well as completion of hair growth cycle was recorded. Minoxidil 2% solution was applied topically and served as positive control. The result of treatment with minoxidil 2% is 49% hair in anagenic phase. Hair growth initiation time was significantly reduced to half on treatment with the extracts compared to control animals. The treatment was successful in bringing a greater number of hair follicles (64% and 51%) in anagenic phase than standard minoxidil (49%). The results of treatment with 5% and 10% petroleum ether extracts were comparable to the positive control minoxidil.
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Affiliation(s)
- Deepali Jaybhaye
- Department of Pharmacology, Mahatma Gandhi Mission Hospital, Aurangabad, India
| | - Sushikumar Varma
- Departments of Pharmacology and Pathology, Mahatma Gandhi Institute of Medical Sciences, Sewagram, Wardha, India
| | - Nitin Gagne
- Departments of Pharmacology and Pathology, Mahatma Gandhi Institute of Medical Sciences, Sewagram, Wardha, India
| | - Vijay bonde
- Department of Pharmacology, Mahatma Gandhi Mission Hospital, Aurangabad, India
| | - Amol Gite
- Department of Public Health, Buldana, India
| | - Deepak Bhosle
- Department of Pharmacology, Mahatma Gandhi Mission Hospital, Aurangabad, India
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Murkute AV, Sahu MS, Mali PY, Rangari VD. Development and evaluation of formulations of microbial biotransformed extract of tobacco leaves for hair growth potential. Pharmacognosy Res 2010; 2:300-3. [PMID: 21589756 PMCID: PMC3093036 DOI: 10.4103/0974-8490.72328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 04/26/2010] [Accepted: 11/08/2010] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Extensive researches are going on to explore the effective and safe drug for their hair growth. Tobacco leaves are traditionally known to potentiate hair growth promotion. Therefore, the aim of present study was to formulate and evaluate the microbial biotransformed extract of tobacco leaves for hair growth potential in male albino wister rats. MATERIALS AND METHODS The extract of was prepared by microbial biotransformation of tobacco leaves in cow urine for 28 days. The herbal formulations (lotion) were formulated by general method using o/w type base in various rations or concentrations such as 10%, 20% and 30% of extract. These lotions were applied on shaved skin area of rats for 30 days once in a day and hair length, serum total protein, and total testosterone were measured. RESULTS Our formulations show increase in hair growth and serum total protein at concentration dependent manner with effect to standard and control groups. Serum total testosterone decreases according to a concentration dependent manner. CONCLUSION Further, series of investigations are, however, necessary to remain exploration, which includes their structural elucidation, characterization, clinical safety, reliability and molecular mechanism involved in this pharmacological activity.
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Affiliation(s)
- Ashlesh V. Murkute
- Department of Pharmacognosy, J. L. Chaturvedi College of Pharmacy, Nagpur-440016 (M.S), India
| | - Mahesh S. Sahu
- Department of Pharmacognosy, Radharaman Institute of Pharmaceutical Sciences, Ratibad, Bhopal - 462 044 (M.P.), India
| | - Prashant Y. Mali
- Department of Pharmacology, Radharaman College of Pharmacy, Ratibad, Bhopal-462044 (M.P.), India
| | - Vinod D. Rangari
- Department of Pharmacognosy, J. L. Chaturvedi College of Pharmacy, Nagpur-440016 (M.S), India
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Semalty M, Semalty A, Joshi GP, Rawat MSM. Hair growth and rejuvenation: an overview. J DERMATOL TREAT 2010; 22:123-32. [PMID: 20536276 DOI: 10.3109/09546630903578574] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Hair has psychological and sociological importance throughout the ages in framing the personality and general appearance of an individual. Significant progress is being made on discovering an effective and safe drug for hair growth. Angiogenesis, androgen antagonism, vasodilation, potassium channel opening and 5-alpha reductase inhibition are the major non-surgical therapeutic strategies of hair growth promotion. In spite of a flood of drugs claiming to be useful as hair growth promoters, more rational strategies, which can target the problem areas or stages of the hair growth cycle effectively, are still awaited. This article highlights the developments in hair rejuvenation strategies and reviews the potential of herbal drugs as safer and effective alternatives.
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Affiliation(s)
- Mona Semalty
- Department of Pharmaceutical Sciences, HNB Garhwal University Srinagar (Garhwal), Uttarakhand, India.
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Semalty M, Semalty A, P. Joshi G, Rawat M. In vivo Hair Growth Activity of Herbal Formulations. INT J PHARMACOL 2009. [DOI: 10.3923/ijp.2010.53.57] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zhou Z, Lenk R, Dellinger A, MacFarland D, Kumar K, Wilson SR, Kepley CL. Fullerene nanomaterials potentiate hair growth. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2009; 5:202-7. [DOI: 10.1016/j.nano.2008.09.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Revised: 09/06/2008] [Accepted: 09/08/2008] [Indexed: 10/21/2022]
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40
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Solitary fixed drug eruption caused by finasteride. J Am Acad Dermatol 2009; 60:168-9. [DOI: 10.1016/j.jaad.2008.07.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2007] [Revised: 07/08/2008] [Accepted: 07/27/2008] [Indexed: 11/18/2022]
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Hair growth promoting activity of Eclipta alba in male albino rats. Arch Dermatol Res 2008; 300:357-64. [DOI: 10.1007/s00403-008-0860-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2007] [Revised: 04/11/2008] [Accepted: 04/21/2008] [Indexed: 10/22/2022]
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Harth W, Seikowski K, Hermes B, Gieler U. New lifestyle drugs and somatoform disorders in dermatology. J Eur Acad Dermatol Venereol 2007; 22:141-9. [PMID: 18081754 DOI: 10.1111/j.1468-3083.2007.02507.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- W Harth
- Clinic for Dermatology and Phlebology, Vivantes Berlin Friedrichshain, Academic Teaching Hospital of the Charité- Medical University Berlin, Germany.
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Hosoda S, Hashimoto Y. 3,3-Diphenylpentane skeleton as a steroid skeleton substitute: Novel inhibitors of human 5α-reductase 1. Bioorg Med Chem Lett 2007; 17:5414-8. [PMID: 17686629 DOI: 10.1016/j.bmcl.2007.07.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2007] [Revised: 07/04/2007] [Accepted: 07/11/2007] [Indexed: 11/29/2022]
Abstract
We designed and synthesized novel type 1 5alpha-reductase inhibitors by using 3,3-diphenylpentane skeleton as a substitute for the usual steroid skeleton. 4-(3-(4-(N-Methylacetamido)phenyl)pentan-3-yl)phenyl dibenzylcarbamate (11k) is a competitive 5alpha-reductase inhibitor with the IC(50) value of 0.84 microM.
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Affiliation(s)
- Shinnosuke Hosoda
- Institute of Molecular and Cellular Biosciences, The University of Tokyo, Yayoi, Bunkyo-ku, Tokyo 113-0032, Japan
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Goldstein I. A clinical paradigm for the combined management of androgen insufficiency and erectile dysfunction. Endocrinol Metab Clin North Am 2007; 36:435-52. [PMID: 17543728 DOI: 10.1016/j.ecl.2007.02.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Androgen insufficiency and erectile dysfunction are highly prevalent medical disorders in aging men who have associated multiple risk factors. Good clinical practice requires the use of appropriate strategies for patient- and goal-directed diagnosis and treatment. This article focuses on a rational, evidence based clinical management paradigm that combines diagnosis and treatment of men who have androgen insufficiency and erectile dysfunction.
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Affiliation(s)
- Irwin Goldstein
- Sexual Medicine, Alvarado Hospital, 5555 Reservoir Drive, Suite 203, San Diego, CA 92120, USA.
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van Oeveren A, Motamedi M, Martinborough E, Zhao S, Shen Y, West S, Chang W, Kallel A, Marschke KB, López FJ, Negro-Vilar A, Zhi L. Novel selective androgen receptor modulators: SAR studies on 6-bisalkylamino-2-quinolinones. Bioorg Med Chem Lett 2007; 17:1527-31. [PMID: 17267219 DOI: 10.1016/j.bmcl.2007.01.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2006] [Revised: 12/23/2006] [Accepted: 01/02/2007] [Indexed: 11/30/2022]
Abstract
A series of selective androgen receptor modulators (SARMs) with a wide spectrum of receptor modulating activities was developed based on optimization of the 4-substituted 6-bisalkylamino-2-quinolinones (3). Significance of the trifluoromethyl group on the side chains and its interactions with amino acid residues within the androgen receptor (AR) ligand binding domain are discussed. A representative analog (9) was tested orally in a rodent model of hypogonadism and demonstrated desirable tissue selectivity.
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Affiliation(s)
- Arjan van Oeveren
- Discovery Research, Ligand Pharmaceuticals, 10275 Science Center Drive, San Diego, CA 92121, USA
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Finn DA, Beadles-Bohling AS, Beckley EH, Ford MM, Gililland KR, Gorin-Meyer RE, Wiren KM. A new look at the 5alpha-reductase inhibitor finasteride. CNS DRUG REVIEWS 2006; 12:53-76. [PMID: 16834758 PMCID: PMC6741762 DOI: 10.1111/j.1527-3458.2006.00053.x] [Citation(s) in RCA: 134] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Finasteride is the first 5alpha-reductase inhibitor that received clinical approval for the treatment of human benign prostatic hyperplasia (BPH) and androgenetic alopecia (male pattern hair loss). These clinical applications are based on the ability of finasteride to inhibit the Type II isoform of the 5alpha-reductase enzyme, which is the predominant form in human prostate and hair follicles, and the concomitant reduction of testosterone to dihydrotestosterone (DHT). In addition to catalyzing the rate-limiting step in the reduction of testosterone, both isoforms of the 5alpha-reductase enzyme are responsible for the reduction of progesterone and deoxycorticosterone to dihydroprogesterone (DHP) and dihydrodeoxycorticosterone (DHDOC), respectively. Recent preclinical data indicate that the subsequent 3alpha-reduction of DHT, DHP and DHDOC produces steroid metabolites with rapid non-genomic effects on brain function and behavior, primarily via an enhancement of gamma-aminobutyric acid (GABA)ergic inhibitory neurotransmission. Consistent with their ability to enhance the action of GABA at GABA(A) receptors, these steroid derivatives (termed neuroactive steroids) possess anticonvulsant, antidepressant and anxiolytic effects in addition to altering aspects of sexual- and alcohol-related behaviors. Thus, finasteride, which inhibits both isoforms of 5alpha-reductase in rodents, has been used as a tool to manipulate neuroactive steroid levels and determine the impact on behavior. Results of some preclinical studies and clinical observations with finasteride are described in this review article. The data suggest that endogenous neuroactive steroid levels may be inversely related to symptoms of premenstrual and postpartum dysphoric disorder, catamenial epilepsy, depression, and alcohol withdrawal.
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Affiliation(s)
- Deborah A Finn
- Department of Veterans Affairs Medical Research, Portland Alcohol Research Center, 97239, USA.
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Abstract
Testosterone is converted to the more biologically active androgen, dihydrotestosterone (DHT), by steroid 5alpha-reductase. Two isozymes of 5alpha-reductase, types 1 and 2, are abundantly expressed in the epididymis. DHT is the androgen found in the nuclei of epididymal cells and is essential for the maturation of spermatozoa. Thus, one approach to block androgen action in the epididymis is to inhibit DHT formation. Several compounds have been reported to inhibit either one or both forms of 5alpha-reductase in many tissues. The first commercially available inhibitor of 5alpha-reductase, finasteride, has a predominant effect on the type 2 isozyme, while more recently developed agents, such as dutasteride, PNU157706 and FK143, act as dual inhibitors. We found that the treatment of adult rats with such agents results in pronounced effects on the expression of genes essential to the formation of the optimal luminal microenvironment that is required for proper sperm maturation. Furthermore, drug treatment caused a significant decrease in the percentage of progressively motile and morphologically normal spermatozoa in the cauda epididymides. Mating females to treated males resulted in fewer successful pregnancies and a higher rate of pre-implantation loss. Thus, there may be a role for dual 5alpha-reductase inhibitors as potential components of a male contraceptive.
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Affiliation(s)
- Bernard Robaire
- Departments of Pharmacology and Therapeutics and of Obstetrics and Gynecology, McGill University, Montréal, Qué., Canada.
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50
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Abstract
Systemic disease, either genetic or acquired, may prevent or decrease the severity of another disease. These observations have led to important therapeutic advances. The best-known examples are Edward Jenner's use in 1798 of cowpox to prevent smallpox and J.B. Haldane's 1942 observation that erythrocyte disorders such as thalassemia and sickle cell disease modify the severity of malaria. Patients with and carriers of cystic fibrosis may have genetic resistance to tuberculosis and/or secretory diarrhea. The beneficial effects of undernutrition have led to therapeutic diets for seizures, celiac disease, type 2 diabetes, and inflammatory bowel disease. Finasteride for prostatic hypertrophy was developed after the observation that patients with male pseudohermaphrodism resulting from 5-alpha-reductase mutations do not develop prostatic hypertrophy. Rh immunoglobulin for Rh hemolytic disease prevention followed the observation that ABO incompatibility prevented Rh sensitization. The natural immunosuppression of measles may cause remission of nephrosis, and that of leprosy prevents psoriasis. Patients with one form of agammaglobulinemia (X-linked) never get Epstein-Barr virus infection, and patients with another form (common variable) are seemingly cured by HIV infection. HIV/AIDS is prevented or modified by co-receptor mutations (notably the CCRDelta32 chemokine mutation), HIV-2, or GB virus C infection. Additional exploration of these genetic, infectious, and metabolic influences on disease severity may provide new therapeutic approaches to HIV and other diseases.
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Affiliation(s)
- E Richard Stiehm
- Department of Pediatrics, Mattel Children's Hospital, UCLA, Los Angeles, California 90095, USA.
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