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Santana FDFV, Lozi AA, Gonçalves RV, Da Silva J, Da Matta SLP. Comparative effects of finasteride and minoxidil on the male reproductive organs: A systematic review of in vitro and in vivo evidence. Toxicol Appl Pharmacol 2023; 478:116710. [PMID: 37805090 DOI: 10.1016/j.taap.2023.116710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 10/01/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023]
Abstract
Finasteride and minoxidil are medicaments commonly prescribed for treating benign prostatic hyperplasia (BPA), hypertension, and/or androgenetic alopecia (AGA). The mechanism of action of finasteride is based on the interference in androgenic pathways, which may lead to fertility-related disorders in men. Minoxidil, however, can act in multiple ways, and there is no consensus that its use can adversely affect male fertility. Since finasteride and minoxidil could be risk factors for male fertility, we aimed to compare their impact on the two reproductive organs testis and epididymis of adult murine models, besides testis/epididymis-related cells, and describe the mechanism of action involved. For such, we used the PRISMA guideline. We included 31 original studies from a structured search on PubMed/MEDLINE, Scopus, and Web of Science databases. For in vivo studies, the bias analysis and the quality of the studies were assessed as described by SYRCLE (Systematic Review Centre for Laboratory Animal Experimentation). We concluded that finasteride and minoxidil act as hormone disruptors, causing oxidative stress and morphological changes mainly in the testis. Our results also revealed that finasteride treatment could be more harmful to male reproductive health because it was more associated with reproductive injuries, including damage to the epididymis, erectile dysfunction, decreased libido, and reduced semen volume. Thus, this study contributes to the global understanding of the mechanisms by which medicaments used for alopecia might lead to male reproductive disorders. We hope that our critical analysis expedites clinical research and reduces methodological bias. The registration number on the Prospero platform is CRD42022313347.
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Affiliation(s)
| | - Amanda Alves Lozi
- Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Reggiani Vilela Gonçalves
- Department of Animal Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil; Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
| | - Janaina Da Silva
- Institut de recherche en santé, environnement et travail (Irset) - UMR 1085, Institut national de la santé et de la recherche médicale (Inserm), Université de Rennes, Rennes, France
| | - Sérgio Luis Pinto Da Matta
- Department of Animal Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil; Department of General Biology, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil
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Guo K, Wang L, Zhong Y, Gao S, Jing R, Ye J, Zhang K, Fu M, Hu Z, Zhao W, Xu N. Cucurbitacin promotes hair growth in mice by inhibiting the expression of fibroblast growth factor 18. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:1104. [PMID: 36388783 PMCID: PMC9652544 DOI: 10.21037/atm-22-4423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/08/2022] [Indexed: 08/03/2023]
Abstract
BACKGROUND The inhibition of fibroblast growth factor 18 (FGF18) promotes the transition of hair follicles (HFs) from the telogen phase to the anagen phase. Cucurbitacin has been shown to have a good effect in promoting hair cell growth. This study explored the potential effect of cucurbitacin on hair growth and its effect on FGF18 expression in mice. METHODS Male C57BL/6J mice were randomly divided into the following two groups: (I) the vehicle group; and (II) the cucurbitacin group. Matrix cream and cucurbitacin cream were applied to the depilated skin on the back of the vehicle group mice and the cucurbitacin group mice, respectively. On days 3, 6, 9, 12, 15, and 18, the hair growth in the depilated dorsal skin of the mice was recorded with a digital camera and a HF detector, and the HF cycle status of the mice was observed by hematoxylin and eosin (H&E) staining. In addition, the level of FGF18 messenger ribonucleic acid (mRNA) in the dorsal skin was measured on days 15 and 18 by quantitative real-time polymerase chain reaction (qRT-PCR), while the level of FGF18 protein was measured by western blot and immunofluorescence staining. RESULTS The dorsal skin to which the cucurbitacin cream was applied began to darken on day 6 and grew hairs on day 9, which was 3 days earlier than the dorsal skin to which the matrix cream was applied. The H&E staining revealed a transition from the telogen phase to the anagen phase 3 days earlier for the cucurbitacin cream-treated skin than the matrix cream-treated skin. In addition, the skin treated with cucurbitacin cream also showed a significant decrease in FGF18 mRNA as seen by qRT-PCR, and reduced FGF18 protein levels as detected by western blot and immunofluorescence staining compared to the skin treated with matrix cream only. CONCLUSIONS Cucurbitacin significantly reduced the levels of FGF18 mRNA and protein in the dorsal skin of mice to accelerate the HFs to enter the anagen phase earlier, thereby promoting the regeneration of hair. Thus, cucurbitacin can be considered a new and valuable agent for the development of anti-hair loss products.
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Affiliation(s)
- Keke Guo
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Lusheng Wang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Yulan Zhong
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Shuang Gao
- School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Rongrong Jing
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Jiabin Ye
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Kaini Zhang
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Mengli Fu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
| | - Zhenlin Hu
- School of Medicine, Shanghai University, Shanghai, China
| | - Wengang Zhao
- Institute of Life Sciences, Wenzhou University, Wenzhou, China
| | - Nuo Xu
- College of Life and Environmental Sciences, Wenzhou University, Wenzhou, China
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Ahmed AS, Soliman MG. Protective Role of 4-(4-Hydroxy-3-methoxyphenyl)-2-Butanone on Prostatic Cells Hyperplasia of Rats and Human, 5α-reductase Inhibition Pathway. J Microsc Ultrastruct 2021; 9:164-169. [PMID: 35070691 PMCID: PMC8751679 DOI: 10.4103/jmau.jmau_37_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 05/17/2020] [Accepted: 09/03/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Prostate gland is an exocrine gland that could be affected by various pathological conditions. Benign prostatic hyperplasia (BPH) is an age-dependent medical condition caused by increased activity of 5α-reductase enzyme (5α-R). Medical treatment by finasteride is considered during treatment, but it has unavoidable side effects. Hence, there is an increasing need to use natural ingredients for BPH treatment. Gingerol oil (ginger extract) is transferred by heating into zingerone. Recent studies reported the effect of zingerone on prostate cancer cells. AIMS AND OBJECTIVES The aim of the present research is to investigate the protective effect of zingerone against BPH. MATERIALS AND METHODS Sixty male Albino Wistar rats were divided into three groups: control group, prostatic hyperplasia group treated with saline, and prostatic hyperplasia group treated with zingerone (PH-Z-G). At day 28, all rats were sacrificed, epididymis and prostate samples were collected for histopathological examination and Western blotting for androgen receptors (ARs) proteins and steroid 5 alpha-reductase 1 (SRD5A1). Human RWPE-1 prostatic cell line was assessed for viability and cycle after treated with zingerone 500 μg/day for 10 days. RESULTS PH-S group showed significant (P < 0.05) thickening of connective tissue septa associated with narrowing of acinar lumen. PH-Z group showed regain of the normal histological feature. SRD5A1 and AR expression was significantly (P < 0.05) reduced in PH-Z group in comparison with PH-S group. Cell line proliferation was significantly reduced after application of zingerone with G2/M cell cycle arrest. CONCLUSION Our results showed that natural herbal zingerone decreased the prostatic tissue levels of (5α reductase and AR) in rat BPH model, which could be a promising herbal medicine for BPH treatment. Further human clinical trials are required.
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Affiliation(s)
- Ahmed S. Ahmed
- Department of Anatomy and Embryology, College of Medicine, Tanta University, Tanta, Egypt
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Sahu SK, Raj R, Raj PM, Alpana R. Topical Lipid Based Drug Delivery Systems for Skin Diseases: A Review. CURRENT DRUG THERAPY 2020. [DOI: 10.2174/1574885513666181112153213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Treatment of skin ailments through systemic administration is limited due to toxicity and
patients discomfort. Hence, lower risk of systemic side effects from topical dosage forms like ointments,
creams, emulsions and gels is more preferred for the treatment of skin disease. Application
of lipid based carriers in drug delivery in topical formulations has recently become one of the major
approaches to improve drug permeation, safety, and effectiveness. These delivery systems include
liposomes, ethosomes, transfersomes, Nanoemulsions (NEs), Solid Lipid Nanoparticles (SLNs)
Nanostructured Lipid Carriers (NLCs) and micelles. Most of the liposomes and SLNs based products
are in the market while some are under investigation. Transcutaneous delivery of therapeutics
to the skin layer by novel lipid based carriers has enhanced topical therapy for the treatment of skin
ailments. This article covers an overview of the lipid-based carriers for topical uses to alleviate skin
diseases.
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Affiliation(s)
- Suresh Kumar Sahu
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur (CG)-495009, India
| | - Rakesh Raj
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur (CG)-495009, India
| | - Pooja Mongia Raj
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur (CG)-495009, India
| | - Ram Alpana
- Institute of Pharmaceutical Sciences, Guru Ghasidas Vishwavidyalaya, Bilaspur (CG)-495009, India
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Morikawa T, Luo F, Manse Y, Sugita H, Saeki S, Chaipech S, Pongpiriyadacha Y, Muraoka O, Ninomiya K. Geranylated Coumarins From Thai Medicinal Plant Mammea siamensis With Testosterone 5α-Reductase Inhibitory Activity. Front Chem 2020; 8:199. [PMID: 32266216 PMCID: PMC7099204 DOI: 10.3389/fchem.2020.00199] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 03/04/2020] [Indexed: 12/11/2022] Open
Abstract
Geranylated coumarin constituents, kayeassamin I (1) and mammeasins E (2) and F (3) were newly isolated from the methanol extract of the flowers of Mammea siamensis (Calophyllaceae) originating in Thailand, along with five known isolates, such as mammea E/BC (23), deacetylmammea E/AA cyclo D (31), deacetylmammea E/BB cyclo D (32), mammea A/AA cyclo F (34), and mammea A/AC cyclo F (35). These compounds (1–3) were obtained as an inseparable mixture (ca. 1:1 ratio) of the 3″R and 3″S forms, respectively. Among the isolated coumarins from the extract, mammeasins E (2, 22.6 μM), A (4, 19.0 μM), and B (5, 24.0 μM), kayeassamins E (9, 33.8 μM), F (10, 15.9 μM), and G (11, 17.7 μM), surangin C (13, 5.9 μM), and mammeas A/AA (17, 19.5 μM), E/BB (22, 16.8 μM), and A/AA cyclo F (34, 23.6 μM), were found to inhibit testosterone 5α-reductase.
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Affiliation(s)
- Toshio Morikawa
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka, Japan
| | - Fenglin Luo
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka, Japan
| | - Yoshiaki Manse
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka, Japan
| | - Hidemi Sugita
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka, Japan
| | - Shunsuke Saeki
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka, Japan
| | - Saowanee Chaipech
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka, Japan.,Faculty of Agro-Industry, Rajamangala University of Technology Srivijaya, Nakhon Si Thammarat, Thailand
| | - Yutana Pongpiriyadacha
- Faculty of Science and Technology, Rajamangala University of Technology Srivijaya, Nakhon Si Thammarat, Thailand
| | - Osamu Muraoka
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka, Japan
| | - Kiyofumi Ninomiya
- Pharmaceutical Research and Technology Institute, Kindai University, Osaka, Japan
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Homology Modeling of 5-alpha-Reductase 2 Using Available Experimental Data. Interdiscip Sci 2018; 11:475-484. [PMID: 29383563 DOI: 10.1007/s12539-017-0280-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 12/23/2017] [Accepted: 12/27/2017] [Indexed: 12/21/2022]
Abstract
5-Alpha-reductase 2 is an interesting pharmaceutical target for the treatment of several diseases, including prostate cancer, benign prostatic hyperplasia, male pattern baldness, acne, and hirsutism. One of the main approaches in computer aided drug design is structure-based drug discovery. However, the experimental 3D structure of 5-alpha-reductase 2 is not available at present. Therefore, a homology modeling method and molecular dynamics simulation were used to develop a reliable model of 5-alpha-reductase 2 for inhibitor pose prediction and virtual screening. Despite the low sequence identity between the target and template sequences, a useful 3D model of 5-alpha-reductase 2 was generated by the inclusion of experimental data.
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Fagir W, Hathout RM, Sammour OA, ElShafeey AH. Self-microemulsifying systems of Finasteride with enhanced oral bioavailability: multivariate statistical evaluation, characterization, spray-drying and in vivo studies in human volunteers. Nanomedicine (Lond) 2016; 10:3373-89. [PMID: 26909417 DOI: 10.2217/nnm.15.123] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AIM To develop Finasteride-loaded self micro-emulsifying drug delivery systems (SMEDDS) for the treatment of hormonal associated problems. MATERIALS & METHODS Ternary phase diagrams were constructed to obtain self-emulsification regions. Multivariate statistical methods viz. Principal component analysis and agglomerative hierarchy clustering analysis were used to evaluate the microemulsions stability. In vitro redispersibility study was adopted and two formulations were selected for spray-drying. Further investigations were performed (Fourier transform infrared, x-ray diffraction and transmission electron microscopy). Finally, the in vivo performance was tested in human volunteers. RESULTS Multivariate statistical methods selected stable SMEDDS. Spray-drying utilizing maltodextrin/leucin carrier system yielded a flowable product. Selected solid SMEDDS scored 129.35% relative bioavailability compared with a commercial tablet. CONCLUSION The developed SMEDDS poses successful platform for glucosteroid analogs oral delivery.
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8
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Chau CH, Price DK, Till C, Goodman PJ, Chen X, Leach RJ, Johnson-Pais TL, Hsing AW, Hoque A, Tangen CM, Chu L, Parnes HL, Schenk JM, Reichardt JKV, Thompson IM, Figg WD. Finasteride concentrations and prostate cancer risk: results from the Prostate Cancer Prevention Trial. PLoS One 2015; 10:e0126672. [PMID: 25955319 PMCID: PMC4425512 DOI: 10.1371/journal.pone.0126672] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 04/06/2015] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE In the Prostate Cancer Prevention Trial (PCPT), finasteride reduced the risk of prostate cancer by 25%, even though high-grade prostate cancer was more common in the finasteride group. However, it remains to be determined whether finasteride concentrations may affect prostate cancer risk. In this study, we examined the association between serum finasteride concentrations and the risk of prostate cancer in the treatment arm of the PCPT and determined factors involved in modifying drug concentrations. METHODS Data for this nested case-control study are from the PCPT. Cases were drawn from men with biopsy-proven prostate cancer and matched controls. Finasteride concentrations were measured using a liquid chromatography-mass spectrometry validated assay. The association of serum finasteride concentrations with prostate cancer risk was determined by logistic regression. We also examine whether polymorphisms in the enzyme target and metabolism genes of finasteride are related to drug concentrations using linear regression. RESULTS AND CONCLUSIONS Among men with detectable finasteride concentrations, there was no association between finasteride concentrations and prostate cancer risk, low-grade or high-grade, when finasteride concentration was analyzed as a continuous variable or categorized by cutoff points. Since there was no concentration-dependent effect on prostate cancer, any exposure to finasteride intake may reduce prostate cancer risk. Of the twenty-seven SNPs assessed in the enzyme target and metabolism pathway, five SNPs in two genes, CYP3A4 (rs2242480; rs4646437; rs4986910), and CYP3A5 (rs15524; rs776746) were significantly associated with modifying finasteride concentrations. These results suggest that finasteride exposure may reduce prostate cancer risk and finasteride concentrations are affected by genetic variations in genes responsible for altering its metabolism pathway. TRIAL REGISTRATION ClinicalTrials.gov NCT00288106.
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Affiliation(s)
- Cindy H. Chau
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Douglas K. Price
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Cathee Till
- Swog Statistical Center, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Phyllis J. Goodman
- Swog Statistical Center, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Xiaohong Chen
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Robin J. Leach
- Department of Urology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Teresa L. Johnson-Pais
- Department of Urology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Ann W. Hsing
- Cancer Prevention Institute of California, Fremont, California, Stanford Cancer Institute, Palo Alto, California, United States of America
| | - Ashraful Hoque
- Department of Clinical Cancer Prevention, The University of Texas M.D. Anderson Cancer Center, Houston, Texas, United States of America
| | - Catherine M. Tangen
- Swog Statistical Center, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Lisa Chu
- Cancer Prevention Institute of California, Fremont, California, Stanford Cancer Institute, Palo Alto, California, United States of America
| | - Howard L. Parnes
- Division of Cancer Prevention, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Jeannette M. Schenk
- Cancer Prevention Program, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Juergen K. V. Reichardt
- School of Pharmacy and Molecular Sciences, James Cook University, Townsville, Queensland, Australia
| | - Ian M. Thompson
- Department of Urology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - William D. Figg
- Genitourinary Malignancies Branch, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, United States of America
- * E-mail:
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Jeffrey M, Lang M, Gane J, Chow E, Wu C, Zhang L. Novel anticonvulsive effects of progesterone in a mouse model of hippocampal electrical kindling. Neuroscience 2013; 257:65-75. [PMID: 24215976 DOI: 10.1016/j.neuroscience.2013.10.074] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 10/07/2013] [Accepted: 10/30/2013] [Indexed: 12/28/2022]
Abstract
Progesterone is a known anticonvulsant, with its inhibitory effects generally attributed to its secondary metabolite, 5α,3α-tetrahydroprogesterone (THP), and THP's enhancement of GABAA receptor activity. Accumulating evidence, however, suggests that progesterone may have non-genomic actions independent of the GABAA receptor. In this study, we explored THP/GABAA-independent anticonvulsive actions of progesterone in a mouse model of hippocampal kindling and in mouse entorhinal slices in vitro. Specifically, we examined the effects of progesterone in kindled mice with or without pretreatments with finasteride, a 5α-reductase inhibitor known to block the metabolism of progesterone to THP. In addition, we examined the effects of progesterone on entorhinal epileptiform potentials in the presence of a GABAA receptor antagonist picrotoxin and finasteride. Adult male mice were kindled via a daily stimulation protocol. Electroencephalographic (EEG) discharges were recorded from the hippocampus or cortex to assess "focal" or "generalized" seizure activity. Kindled mice were treated with intra-peritoneal injections of progesterone (10, 35, 100 and 160mg/kg) with or without finasteride pretreatment (50 or 100mg/kg), THP (1, 3.5, 10 and 30mg/kg), midazolam (2mg/kg) and carbamazepine (50mg/kg). Entorhinal cortical slices were prepared from naïve young mice, and repetitive epileptiform potentials were induced by 4-aminopyridine (100μM), picrotoxin (100μM) and finasteride (1μM). Pretreatment with finasteride did not abolish the anticonvulsant effects of progesterone. In finasteride-pretreated mice, progesterone at 100 and 160mg/kg decreased cortical but not hippocampal afterdischarges (ADs). Carbamazepine mimicked the effects of progesterone with finasteride pretreatments in decreasing cortical discharges and motor seizures, whereas midazolam produced effects similar to progesterone alone or THP in decreasing hippocampal ADs and motor seizures. In brain slices, progesterone at 1μM inhibited entorhinal epileptiform potentials in the presence of picrotoxin and finasteride. We suggest that progesterone may have THP/GABAA-dependent and independent anticonvulsive actions in the hippocampal-kindled mouse model.
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Affiliation(s)
- M Jeffrey
- Department of Pharmacology and Toxicology, University of Toronto, Canada; Division of Fundamental Neurobiology, Toronto Western Research Institute, University Health Network, Canada; University of Toronto Epilepsy Research Program, Canada
| | - M Lang
- Division of Fundamental Neurobiology, Toronto Western Research Institute, University Health Network, Canada
| | - J Gane
- Division of Fundamental Neurobiology, Toronto Western Research Institute, University Health Network, Canada
| | - E Chow
- Division of Fundamental Neurobiology, Toronto Western Research Institute, University Health Network, Canada
| | - C Wu
- Division of Fundamental Neurobiology, Toronto Western Research Institute, University Health Network, Canada; University of Toronto Epilepsy Research Program, Canada
| | - L Zhang
- Department of Medicine (Neurology), University of Toronto, Canada; Division of Fundamental Neurobiology, Toronto Western Research Institute, University Health Network, Canada; University of Toronto Epilepsy Research Program, Canada.
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Madheswaran T, Baskaran R, Thapa RK, Rhyu JY, Choi HY, Kim JO, Yong CS, Yoo BK. Design and in vitro evaluation of finasteride-loaded liquid crystalline nanoparticles for topical delivery. AAPS PharmSciTech 2013. [PMID: 23207960 DOI: 10.1208/s12249-012-9888-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
In this study, liquid crystalline nanoparticles (LCN) have been proposed as new carrier for topical delivery of finasteride (FNS) in the treatment of androgenetic alopecia. To evaluate the potential of this nanocarrier, FNS-loaded LCN was prepared by ultrasonication method and characterized for size, shape, in vitro release, and skin permeation-retention properties. The particle size ranged from 153.8 to 170.2 nm with a cubical shape and exhibited controlled release profile with less than 20% of the drug released in the first 24 h. The release profile was significantly altered with addition of different additives. Formulation with lower monoolein exhibited higher skin permeation with a flux rate of 0.061±0.005 μg cm(-2) h(-1) in 24 h. The permeation however, significantly increased with glycerol, propylene glycol, and polyethylene glycol 400, while it declined for the addition of oleic acid. A similar trend was observed with skin retention study. In conclusion, FNS-loaded LCN could be advocated as a viable alternative for oral administration of the drug.
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Acs P, Takács A, Kiss M, Pálinkás N, Mahó S, Kollár L. Systematic investigation on the synthesis of androstane-based 3-, 11- and 17-carboxamides via palladium-catalyzed aminocarbonylation. Steroids 2011; 76:280-90. [PMID: 21130794 DOI: 10.1016/j.steroids.2010.11.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Revised: 11/18/2010] [Accepted: 11/29/2010] [Indexed: 11/25/2022]
Abstract
3,17-Dicarboxamido-androst-3,5,16-triene, 3-carboxamido-androst-3,5-dien-17-one, 17-carboxamido-androst-4,16-dien-3-one and 11-carboxamido-androst-5,9(11)-dien-3,17-dione derivatives were synthesized in homogeneous carbonylation reactions from the corresponding 3,17-diiodo-androst-3,5,16-triene, 3-iodo-androst-3,5-diene-17-ethylene ketal, 17-iodo-androst-5,16-dien-3-ethylene ketal, 11-iodo-androst-5,9(11)-diene-3,17-bis(ethylene ketal) derivatives, respectively. A highly chemoselective palladium-catalyzed aminocarbonylation of the corresponding iodo-alkene, carried out under mild reaction conditions, can be considered as the key-step for the introduction of the carboxamide functionalities. The synthesis of the iodo-alkene substrate is based on the transformation of the corresponding keto derivative to hydrazone, which was treated with iodine in the presence of a base (1,1,3,3-tetramethyl guanidine). The aminocarbonylation reaction is highly tolerant towards the N-nucleophiles, i.e. various primary and secondary amines including amino acid methyl esters can also be used.
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Affiliation(s)
- Péter Acs
- University of Pécs, Department of Inorganic Chemistry, Pécs, Hungary
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