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1.
Nutr Cancer ; 76(2): 207-214, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38105612

RESUMO

The prevalence of benign prostatic hyperplasia (BPH) and its associated lower urinary tract symptoms (LUTS) increases with age. Considering that BPH drug treatment is associated with complications, this study aimed to investigate the effects of L-carnitine (LC) and Coenzyme Q10 (CoQ10) supplementation as an adjunct therapy to finasteride in the management of LUTS in older men affected with BPH. Fifty eligible volunteers (25 per group) were randomly assigned to either intervention (finasteride + LC and CoQ10 supplements) or control (finasteride + placebo) groups. International prostate symptom score (IPSS), international index of erectile function (IIEF), quality of life index (QoL), as well as serum levels of Prostate-specific antigen (PSA), were assessed. Prostate ultrasound evaluation was also performed, before and after 8 wk of intervention. Supplementation with LC and CoQ10 led to a significant decrease in prostate volume (p < 0.001) as well as a significant increase in IIEF (p < 0.001), compared to the control group. However, there were no significant between-group differences in IPSS (p = 0.503), QoL scores (p = 0.339), and PSA levels (p = 0.482). CoQ10 and LC supplements might be beneficial in combination with standard therapies in the management of BPH and its related complications.


Assuntos
Sintomas do Trato Urinário Inferior , Hiperplasia Prostática , Ubiquinona/análogos & derivados , Masculino , Humanos , Idoso , Hiperplasia Prostática/complicações , Hiperplasia Prostática/tratamento farmacológico , Qualidade de Vida , Finasterida/uso terapêutico , Carnitina/uso terapêutico , Antígeno Prostático Específico , Sintomas do Trato Urinário Inferior/tratamento farmacológico , Sintomas do Trato Urinário Inferior/etiologia , Suplementos Nutricionais , Resultado do Tratamento
2.
World J Urol ; 41(10): 2793-2799, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37659980

RESUMO

PURPOSE: Evaluate the therapeutic effect of a tomato lipidic extract (STE) in combination with selenium (Se) on rats with prostatic hyperplasia (PH) and to observe its possible mechanisms of action and synergism versus finasteride. MATERIALS AND METHODS: 54 male Wistar rats of nine weeks old were divided in Control (C), PH, Finasteride (F), STE, Se, F + STE, F + Se, STE + Se and F + STE + Se with testosterone enanthate (except C). After 4 weeks of treatment administration, prostate weight, bladder weight, diuresis, prooxidant and antioxidant activity, dihydrotestosterone (DHT), androgen receptor (AR) expression and anatomopathological analysis were determined. RESULTS: STE + Se decreased prostate weight 53.8% versus 28% in F group, also STE + Se decreased significatively glandular hyperplasia, prooxidant activity, DHT and AR expression and increased diuresis and antioxidant activity versus finasteride which increased MDA in prostate. CONCLUSIONS: These results demonstrate a greater therapeutic and beneficial effect of tomato lipidic extract in combination with Se in young rats with PH with respect to finasteride without increase prooxidant activity.


Assuntos
Hiperplasia Prostática , Selênio , Solanum lycopersicum , Animais , Masculino , Ratos , Androgênios/metabolismo , Antioxidantes/farmacologia , Antioxidantes/uso terapêutico , Di-Hidrotestosterona/metabolismo , Finasterida/farmacologia , Finasterida/uso terapêutico , Hiperplasia Prostática/tratamento farmacológico , Hiperplasia Prostática/patologia , Ratos Wistar , Receptores Androgênicos/metabolismo , Selênio/farmacologia , Selênio/uso terapêutico , Testosterona/uso terapêutico
3.
J Am Acad Dermatol ; 89(2S): S36-S39, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37591565

RESUMO

Novel medical and procedural options for androgenetic alopecia have arrived. Low-dose oral minoxidil has made its clinical debut, while data on spironolactone, finasteride, and nutritional supplements have advanced. Minimally invasive technological advancements include photobiomodulation and platelet-rich plasma. Within hair transplantation, follicular unit extraction and robotics are now at the clinicians' fingertips.


Assuntos
Alopecia , Finasterida , Humanos , Alopecia/tratamento farmacológico , Finasterida/uso terapêutico , Terapia Comportamental , Minoxidil/uso terapêutico , Suplementos Nutricionais
4.
BMC Complement Med Ther ; 23(1): 187, 2023 Jun 08.
Artigo em Inglês | MEDLINE | ID: mdl-37286957

RESUMO

INTRODUCTION: This study was motivated by the increasing global incidence of benign prostatic hyperplasia (BPH) and the promising potential of nutraceuticals as complementary therapies in ameliorating its burden. We report the safety profile of C. esculenta tuber extracts, a novel nutraceutical in benign prostate hyperplasia in a rat model. METHODS: In this study, forty-five male albino rats were randomly assigned to 9 groups of 5 rats each. Group 1 (normal control) received olive oil and normal saline. Group 2 (BPH untreated group) received 3 mg/kg of testosterone propionate (TP) and normal saline, and group 3 (positive control) received 3 mg/kg of TP and 5 mg/kg of finasteride. Treatment groups 4, 5, 6, 7, 8, and 9 received 3 mg/kg of TP and a middle dose (200 mg/kg) of LD50 of ethanol crude tuber extract of C. esculenta (ECTECE) or hexane, dichloromethane, butanone, ethyl acetate and aqueous fractions of ECTECE respectively for a period of 28 days. RESULTS: The negative controls showed a significant (p < 0.05) increase in mean relative prostate weight (approximately 5 times) as well as a reduction in relative testes weight (approximately 1.4 times less). There was no significant (p > 0.05) difference in the mean relative weights of most vital organs: liver, kidneys, and heart. This was also observed in hematological parameters: RBC, hemoglobin, HCT, MCV, MCH, MCHC, and platelets counts. In general, we note that the effects of the well-established drug finasteride on the biochemical parameters and histology of selected organs are comparable to those of C. esculenta fractions. CONCLUSION: This study demonstrates that C. esculenta tuber extracts provide potentially safe nutraceutical if applied in the management of benign prostate hyperplasia based on a rat model.


Assuntos
Colocasia , Hiperplasia Prostática , Propionato de Testosterona , Animais , Masculino , Ratos , Finasterida/uso terapêutico , Hiperplasia/tratamento farmacológico , Hiperplasia/patologia , Extratos Vegetais/efeitos adversos , Extratos Vegetais/uso terapêutico , Próstata , Hiperplasia Prostática/tratamento farmacológico , Solução Salina/uso terapêutico , Propionato de Testosterona/uso terapêutico
5.
J Cosmet Laser Ther ; 25(1-4): 1-6, 2023 May 19.
Artigo em Inglês | MEDLINE | ID: mdl-37289953

RESUMO

Patterned hair loss is a common type of non-scarring alopecia, characterized by miniaturization of hair follicles. The etiology of female pattern hair loss (FPHL) is not clearly linked to androgens or other hormones thereby making it a challenging condition to treat. Various treatment modalities, like minoxidil (topical or oral), spironolactone, finasteride, have been tried alone or in combination with variable results. Combination therapy is superior to the monotherapy, since these multiple treatment modalities act by targeting different pathogenetic pathways, making the treatment aggressive and more effective.


Assuntos
Alopecia , Minoxidil , Feminino , Humanos , Alopecia/tratamento farmacológico , Minoxidil/uso terapêutico , Finasterida/uso terapêutico , Terapia Combinada , Espironolactona/uso terapêutico , Resultado do Tratamento
6.
Curr Pharm Des ; 29(16): 1231-1244, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37151166

RESUMO

Hair loss or alopecia is a common dermatological condition affecting up to 2% of the world population. It is often caused by hereditary factors, such as male or female pattern baldness, but it can also result from various environmental factors, an unbalanced diet, or chronic illness. While hair loss is not life-threatening, it can cause significant anxiety, depression, and other psychological problems, ultimately impacting an individual's quality of life. Various treatments for hair loss, including both synthetic drugs, such as minoxidil and finasteride, or medicinal herbs, have been approved by the Food and Drug Administration. Despite synthetic drugs' effectiveness, they may come with potential side effects. Natural remedies have been proposed as a viable option for treating hair loss because many chronic disorders can cause alopecia. As such, this review focuses on identifying alternative, efficient treatment agents with limited side effects. Specifically, it looks into medicinal plants as potential healing agents for treating hair loss. To gather relevant information for the study, multiple databases were searched, including Scopus, PubMed, and Google Scholar. A comprehensive search was conducted using a range of search terms, such as "hair loss", "alopecia", "natural remedies for hair loss", "herbal treatments for hair loss", and others to extract relevant scientific articles. Many medicinal plants and natural compounds have shown potential in reducing hair loss, thanks to their anti-inflammatory and antioxidant properties and the ability to improve local metabolism when applied externally. According to existing literature, herbal extracts and formulations derived from plants, such as Urtica dioica, Humulus lupulus, Serenoa repens, Vitis vinifera, Pygeum africanum, Cucurbita pepo, etc., as well as certain individual herbal compounds, micronutrients, bee products, and keratin, may be effective in reducing hair loss directly or indirectly. Research suggests that medicinal plants and a variety of natural compounds hold promise in promoting hair growth and preventing alopecia.


Assuntos
Plantas Medicinais , Qualidade de Vida , Estados Unidos , Animais , Abelhas , Alopecia/tratamento farmacológico , Finasterida/farmacologia , Finasterida/uso terapêutico , Minoxidil/uso terapêutico , Minoxidil/farmacologia , Cabelo
8.
An Bras Dermatol ; 98(4): 506-519, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37003900

RESUMO

Female androgenetic alopecia or female-pattern hair loss (FPHL) is highly prevalent and has a great impact on the quality of life. The treatment is a routine challenge in dermatological practice, as many therapeutic options have a limited level of evidence and often do not meet patients expectations. Lack of knowledge of the pathogenesis of the hair miniaturization process and the factors that regulate follicular morphogenesis restricts the prospect of innovative therapies. There is also a lack of randomized, controlled studies with longitudinal follow-up, using objective outcomes and exploring the performance of the available treatments and their combinations. Topical minoxidil, which has been used to treat female pattern hair loss since the 1990s, is the only medication that has a high level of evidence and remains the first choice. However, about 40% of patients do not show improvement with this treatment. In this article, the authors critically discuss the main clinical and surgical therapeutic alternatives for FPHL, as well as present camouflage methods that can be used in more extensive or unresponsive cases.


Assuntos
Finasterida , Qualidade de Vida , Humanos , Feminino , Finasterida/uso terapêutico , Alopecia/tratamento farmacológico , Alopecia/patologia , Minoxidil/uso terapêutico , Minoxidil/efeitos adversos , Cabelo/patologia , Resultado do Tratamento
9.
J Am Acad Dermatol ; 89(4): 774-783, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-34756934

RESUMO

Androgenetic alopecia (AGA) management is a significant clinical and therapeutic challenge for transgender and gender-diverse (TGD) patients. Although gender-affirming hormone therapies affect hair growth, there is little research about AGA in TGD populations. After reviewing the literature on approved treatments, off-label medication usages, and procedures for treating AGA, we present treatment options for AGA in TGD patients. The first-line treatments for any TGD patient include topical minoxidil 5% applied to the scalp once or twice daily, finasteride 1 mg oral daily, and/or low-level laser light therapy. Spironolactone 200 mg daily is also first-line for transfeminine patients. Second-line options include daily oral minoxidil dosed at 1.25 or 2.5 mg for transfeminine and transmasculine patients, respectively. Topical finasteride 0.25% monotherapy or in combination with minoxidil 2% solution are second-line options for transmasculine and transfeminine patients, respectively. Other second-line treatments for any TGD patient include oral dutasteride 0.5 mg daily, platelet-rich plasma, or hair restoration procedures. After 6-12 months of treatment, AGA severity and treatment progress should be assessed via scales not based on sex; eg, the Basic and Specific Classification or the Bouhanna scales. Dermatologists should coordinate care with the patient's primary gender-affirming clinician(s) so that shared knowledge of all medications exists across the care team.


Assuntos
Minoxidil , Pessoas Transgênero , Humanos , Finasterida/uso terapêutico , Finasterida/efeitos adversos , Alopecia/terapia , Dutasterida/uso terapêutico , Resultado do Tratamento
10.
Am J Clin Dermatol ; 24(1): 15-24, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36169916

RESUMO

Male androgenetic alopecia is a common condition and represents a major concern for patients who experience this condition. While there are different treatments to stop hair loss and improve hair density, the 5-alpha reductase inhibitors have demonstrated to be effective in improving androgenetic alopecia in men and can maintain a positive response for many years. Oral finasteride 1 mg is a US FDA-approved option, but dutasteride 0.5 mg has been proven to induce better responses, especially in the frontal area. Both have been shown to be safe in clinical trials but there is widespread concern about sexual adverse effects among patients. The use of topical finasteride has increased during the last few years as a useful option to avoid systemic therapy. The efficacy of topical finasteride 0.25% daily has been demonstrated in clinical trials, with a less marked decrease in serum dihydrotestosterone levels than with oral intake. Mesotherapy with dutasteride has also become more widespread recently, although evidence of its effectiveness is limited to retrospective studies in real clinical practice. The use of oral minoxidil in androgenetic alopecia has not been approved by the FDA, however several clinical studies have shown that it is an effective treatment option. The initial dose recommended to treat male hair loss is 2.5 mg daily, although the dose is frequently increased to 5 mg daily. The main adverse effect of oral minoxidil is hypertrichosis, followed by dizziness or lower limb edema, which are much less common. Platelet-rich plasma is a non-pharmacological option to treat male androgenetic alopecia, with some clinical trials demonstrating an improvement in hair count after several months. Among the published studies, the main limitation to compare its efficacy is the heterogeneity of the procedure. The most frequent regimens propose treatment every 4 weeks for 3 months initially to assess the individual response. Another treatment alternative is the use of light devices with wavelengths of between 630 and 660 nm, known as low-level laser therapy. These devices can be used at home every day for 15-30 min. Their efficacy has been shown in a limited number of clinical trials; however, there is a lack of evidence about the efficacy of these devices compared with other medical options or as a complementary therapy in hair loss. The pipeline of potential new treatments for male androgenetic alopecia is strong. Pyrilutamide and GT20029 are being studied as topical antagonists of the androgen receptor, while cetirizine is another topical option with some initial promising results. Furthermore, according to isolated studies with heterogeneous treatment schemes, the use of botulinum toxin in the scalp might improve androgenetic alopecia, and lastly, scalp threading might increase the total hair count as growth factors are released during implantation.


Assuntos
Alopecia , Dutasterida , Finasterida , Minoxidil , Humanos , Masculino , Alopecia/tratamento farmacológico , Dutasterida/uso terapêutico , Finasterida/uso terapêutico , Minoxidil/uso terapêutico , Estudos Retrospectivos , Resultado do Tratamento
11.
Zhonghua Nan Ke Xue ; 29(7): 609-614, 2023 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-38619407

RESUMO

OBJECTIVE: To evaluate the effect of combined application of Semen vaccariae seeds auricular acupressure and 5α-reductase inhibitor (finasteride tablets) on postoperative quality of life of patients after transurethral plasmakinetic enucleation of the prostate (PKEP). METHODS: 120 patients with benign prostatic hyperplasia (BPH) who were scheduled to undergo PKEP at the Department of Urology, Jintan People's Hospital Affiliated to Jiangsu University from January 2020 to December 2022, were randomly divided into 4 groups after voluntarily signing informed consent. Three days before the operation, 30 patients were given oryzanol tablets 5 mg orally once a night (placebo group), 31 patients were given Semen vaccariae seeds auricular acupressure (auricular acupressure group), 29 patients were given finasteride 5 mg orally once a night (finasteride group), and another 30 patients were given auricular acupressure combined with finasteride 5 mg orally once a night (combination therapy group). The above treatment was continued for 6 weeks after PKEP. The general data of the perioperative period and the 6-week postoperative follow-up results of the 4 groups were compared to observe the indicators such as the symptom score of nocturia, the self-rating depression scale, and the quality of life (QoL) after treatment among the groups. RESULTS: All patients who underwent PKEP completed the 6-week postoperative follow-up and no statistical difference in the relevant data of the 4 groups was found before the operation. After 2 and 4 weeks of follow-up, the nocturia symptom scores of the auricular acupressure group and the combination therapy group were better than those of the placebo group and the finasteride group. The depression symptom scores and QoL results showed that the auricular acupressure group, finasteride group, and combination therapy group were superior to the placebo group (P<0.05). After 6 weeks of follow-up, QoL in the combination therapy group was 1.65±0.55, which was significantly different from that in the other three groups (P<0.05). CONCLUSION: Combined application of auricular acupressure and 5α-reductase inhibitor can significantly alleviate symptoms such as nocturia and depression and improve the quality of life in BPH patients after PKEP.


Assuntos
Acupressão , Noctúria , Hiperplasia Prostática , Masculino , Humanos , Finasterida/uso terapêutico , Próstata , Qualidade de Vida , Oxirredutases
12.
Acta Histochem ; 124(4): 151894, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35447441

RESUMO

This study aimed to evaluate the efficacy and safety of a topical and oral administration of pumpkin seed oil (PSO) on the hair growth of BALB/c male mice. The animals had their dorsal area shaved (2 ×2 cm) and they were divided into 6 experimental groups. They received orally saline (OS), finasteride (F), or PSO (OP) for 14 days; or topically saline (TS), minoxidil (M), or PSO (TP) for 7 days. The euthanasia of all of the mice occurred on the 22nd day, and the histological slides from the skin area were analyzed. Lipoperoxidation in the liver was assessed through the TBARS method and was also evaluated by the antioxidant enzymes (SOD and CAT). The comet assay and the micronucleus tests were performed for genotoxic/mutagenic safety analyses. A significant increase in the number of hair follicles in the TP group was seen (8.8 ± 0.8) but it was disorganized, with loose dermal collagen. Finasteride presented a significant increase in the levels of the TBARS, SOD, and CAT in the liver, and M increased the DNA damage in the blood and the liver tissues. PSO did not induce any significant changes. In addition, PSO did not induce genotoxic or mutagenic effects. In conclusion, the oral PSO for 14 days acted in the proliferation of the hair follicles, without toxicity signals in the liver. DATA AVAILABILITY: The authors confirm that all of the relevant data is included in the article and/or in the supplementary information file.


Assuntos
Cucurbita , Finasterida , Administração Tópica , Alopecia/patologia , Animais , Finasterida/uso terapêutico , Cabelo/patologia , Masculino , Camundongos , Óleos de Plantas/toxicidade , Superóxido Dismutase , Substâncias Reativas com Ácido Tiobarbitúrico
13.
Clin Dermatol ; 40(1): 64-75, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35190067

RESUMO

Hair loss is a common complaint that is often stressful for patients and a challenge for practitioners to treat. Fortunately, innovations in the field have contributed to growing evidence for several promising topical, oral, and light and energy-based therapies. We have reviewed the current literature about the efficacy of these treatments, including topical agents (finasteride, latanoprost, spironolactone, caffeine, and metformin), oral minoxidil, nutraceuticals, platelet-rich plasma, low-level laser therapy, fractional lasers, and laser-assisted drug delivery. In addition, several debates related to these treatments have been discussed, including post-finasteride syndrome, effects of biotin supplementation on laboratory testing, standardization of platelet-rich plasma and low-level laser therapy, and combination treatment to enhance hair transplantation.


Assuntos
Alopecia , Minoxidil , Alopecia/tratamento farmacológico , Estética , Finasterida/uso terapêutico , Humanos , Lasers , Minoxidil/uso terapêutico , Resultado do Tratamento
14.
J Cosmet Dermatol ; 20(12): 3759-3781, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34741573

RESUMO

BACKGROUND: Androgenetic alopecia (AGA) is the most common form of hair loss consisting of a characteristic receding frontal hairline in men and diffuse hair thinning in women, with frontal hairline retention, and can impact an individual's quality of life. The condition is primarily mediated by 5-alpha-reductase and dihydrotestosterone (DHT) which causes hair follicles to undergo miniaturization and shortening of successive anagen cycles. Although a variety of medical, surgical, light-based and nutraceutical treatment options are available to slow or reverse the progression of AGA, it can be challenging to select appropriate therapies for this chronic condition. AIMS: To highlight treatment options for androgenetic alopecia taking into consideration the efficacy, side effect profiles, practicality of treatment (compliance), and costs to help clinicians offer ethically appropriate treatment regimens to their patients. MATERIALS AND METHODS: A literature search was conducted using electronic databases (Medline, PubMed, Embase, CINAHL, EBSCO) and textbooks, in addition to the authors' and other practitioners' clinical experiences in treating androgenetic alopecia, and the findings are presented here. RESULTS: Although topical minoxidil, oral finasteride, and low-level light therapy are the only FDA-approved therapies to treat AGA, they are just a fraction of the treatment options available, including other oral and topical modalities, hormonal therapies, nutraceuticals, PRP and exosome treatments, and hair transplantation. DISCUSSION: Androgenetic alopecia therapy remains challenging as treatment selection involves ethical, evidence-based decision-making and consideration of each individual patient's needs, compliance, budget, extent of hair loss, and aesthetic goals, independent of potential financial benefits to the practitioners.


Assuntos
Alopecia em Áreas , Qualidade de Vida , Alopecia/tratamento farmacológico , Feminino , Finasterida/uso terapêutico , Folículo Piloso , Humanos , Masculino , Minoxidil/uso terapêutico
15.
Int J Biol Macromol ; 189: 346-355, 2021 Oct 31.
Artigo em Inglês | MEDLINE | ID: mdl-34428489

RESUMO

Finasteride is an antiandrogenic drug used for the clinical treatment of chronic nonbacterial prostatitis (CNP). Recently, we reported the anti-CNP activity of Poria cocos polysaccharides (PPs) in a rat model. In this study, we compared the differences between PPs and finasteride in treating CNP, especially their effects on the gut microbiota. Results showed that both PPs and finasteride significantly reduced the prostate weight and prostate index of CNP rats, and improved the histological damages in the inflamed prostate. Moreover, PPs and finasteride inhibited the production of pro-inflammatory cytokines (TNF-α, IL-2 and IL-8) and androgens (dihydrotestosterone and testosterone). By 16S rDNA sequencing, PPs and finasteride were found to reprogram the gut microbiota into distinct profiles. Further analysis presented that PPs but not finasteride recovered CNP-induced changes in the gut microbiota, including Ruminococcaceae NK4A214 group, uncultured bacterium f Ruminococcaceae, Ruminiclostridium 9, Phascolarctobacterium, Coriobacteriaceae UCG-002 and Oribacterium. LDA effect size (LEfSe) analysis revealed that PPs recovered the gut microbiota by targeting Ruminococcaceae NK4A214 group. Our results suggested that PPs alleviated CNP via different mechanisms from finasteride, especially by regulating the gut microbiota, which offers therapeutic target for the treatment of CNP.


Assuntos
Finasterida/uso terapêutico , Microbioma Gastrointestinal , Polissacarídeos/uso terapêutico , Prostatite/tratamento farmacológico , Prostatite/microbiologia , Wolfiporia/química , Androgênios/metabolismo , Animais , Biomarcadores/metabolismo , Doença Crônica , Citocinas/metabolismo , Finasterida/farmacologia , Microbioma Gastrointestinal/efeitos dos fármacos , Mediadores da Inflamação/metabolismo , Masculino , Tamanho do Órgão/efeitos dos fármacos , Filogenia , Próstata/efeitos dos fármacos , Próstata/patologia , Ratos Sprague-Dawley
16.
Proc Natl Acad Sci U S A ; 118(13)2021 03 30.
Artigo em Inglês | MEDLINE | ID: mdl-33771918

RESUMO

Knockout of ERß in the mouse leads to nuclear expression of epidermal growth factor receptor (EGFR) in the prostate. To examine whether ERß plays a similar role in the human prostate, we used four cohorts of men: 1) a Swedish cohort of normal prostates and PCa (prostate cancer) of different Gleason grades; 2) men with benign prostatic hyperplasia (BPH) treated with the 5α-reductase inhibitor, finasteride, and finasteride together with the ERß agonists, soy isoflavones; 3) men with PCa above Gleason grade 4 (GG4), treated with ADT (androgen deprivation therapy) and abiraterone (AA), the blocker of androgen synthesis for different durations; and 4) men with GG4 PCa on ADT or ADT with the AR (androgen receptor) blocker, enzalutamide, for 4 mo to 6 mo. In men with BPH, finasteride treatment induced EGFR nuclear expression, but, when finasteride was combined with isoflavones, EGFR remained on the cell membrane. In GG4 patients, blocking of AR for 4 mo to 6 mo resulted in loss of ERß and PTEN expression and increase in patients with nuclear EGFR from 10 to 40%. In the men with GG4 PCa, blocking of adrenal synthesis of testosterone for 2 mo to 7 mo had the beneficial effect of increasing ERß expression, but, on treatment longer than 8 mo, ERß was lost and EGFR moved to the nucleus. Since nuclear EGFR is a predictor of poor outcome in PCa, addition of ERß agonists together with abiraterone should be considered as a treatment that might sustain expression of ERß and offer some benefit to patients.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Receptor beta de Estrogênio/agonistas , Hiperplasia Prostática/tratamento farmacológico , Neoplasias da Próstata/tratamento farmacológico , Transporte Ativo do Núcleo Celular/efeitos dos fármacos , Antagonistas de Androgênios/farmacologia , Antagonistas de Androgênios/uso terapêutico , Androstenos/farmacologia , Androstenos/uso terapêutico , Animais , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Benzamidas/farmacologia , Benzamidas/uso terapêutico , Biópsia , Núcleo Celular/efeitos dos fármacos , Núcleo Celular/metabolismo , Estudos de Coortes , Receptores ErbB/metabolismo , Receptor beta de Estrogênio/metabolismo , Finasterida/farmacologia , Finasterida/uso terapêutico , Humanos , Masculino , Camundongos , Camundongos Knockout , Gradação de Tumores , Nitrilas/farmacologia , Nitrilas/uso terapêutico , PTEN Fosfo-Hidrolase/metabolismo , Feniltioidantoína/farmacologia , Feniltioidantoína/uso terapêutico , Fitoestrógenos/farmacologia , Fitoestrógenos/uso terapêutico , Próstata/citologia , Próstata/efeitos dos fármacos , Próstata/patologia , Hiperplasia Prostática/patologia , Neoplasias da Próstata/patologia , Receptores Androgênicos/metabolismo , Receptores de Estrogênio/genética , Receptores de Estrogênio/metabolismo
18.
Dermatol Clin ; 38(2): 239-247, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32115134

RESUMO

Androgenetic alopecia (AGA) is the most common type of hair loss in adults and may be particularly distressing for gender minority patients, given the close relation between hair and gender expression. Furthermore, use of gender affirming hormones such as testosterone in transmen and estrogen/antiandrogens in transwomen has a direct effect on hair growth distribution and density. Clinicians should thus be knowledgeable about the effects of sex hormones on the hair growth cycle to comfortably diagnose and treat AGA in gender minority patients.


Assuntos
Inibidores de 5-alfa Redutase/uso terapêutico , Alopecia/terapia , Fármacos Dermatológicos/uso terapêutico , Finasterida/uso terapêutico , Folículo Piloso/transplante , Terapia com Luz de Baixa Intensidade , Minoxidil/uso terapêutico , Pessoas Transgênero , Alopecia/epidemiologia , Alopecia/metabolismo , Androgênios/metabolismo , Androgênios/uso terapêutico , Estrogênios/metabolismo , Estrogênios/uso terapêutico , Humanos , Procedimentos de Readequação Sexual , Minorias Sexuais e de Gênero , Transplante de Tecidos , Transplante Autólogo
19.
Expert Opin Pharmacother ; 21(5): 603-612, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32066284

RESUMO

Introduction: Androgenetic alopecia is a common hair loss disorder affecting up to 80% of males by the age of 80. It is characterized by androgen related progressive thinning of hair in a defined pattern. It results in diminished self-esteem, reduced confidence and distress in affected men, irrespective of age or stage of baldness. An effective treatment for hair baldness is needed.Areas covered: In androgenetic alopecia, hair follicles undergo progressive miniaturization. Genetic factors and androgens are key role-players in disease pathogenesis. Herein the authors review the pharmacologic treatment of androgenetic alopecia, which involves 5 alpha reductase inhibitors, minoxidil and prostaglandins. Non-pharmacologic approaches are also explored.Expert opinion: Androgenetic alopecia progresses over time and although the current available medical treatments like finasteride and minoxidil are effective in arresting the progression of the disease, they allow only partial regrowth of hair at its best. Early treatment achieves a more optimal outcome. Non-pharmacologic treatments like PRP can be considered in patients refractory to medical treatment.Abbreviations: MPHL: male pattern hair loss; AGA: androgenetic alopecia; DHT: dihydrotestosterone; 5AR: 5-alpha-reductase; VEGF: vascular endothelial growth factor; PG's: prostaglandins (PG's); PGD2R: prostaglandin D2 receptor; VPA: valproic aid; SR: Serenoa Repens; PRP: platelet-rich plasma; PDGF: platelet derived growth factor; TGF: transforming growth factor; ERK: extracellular signal-regulated kinase; PKB: protein kinase B; LLLT: low-level laser therapy; ROS: reactive oxygen species; RCT: randomized control trial; SFRP1: secreted frizzled related protein 1; DP: dermal papilla; PDE5: phosphodiesterase 5.


Assuntos
Alopecia/tratamento farmacológico , Finasterida/uso terapêutico , Minoxidil/uso terapêutico , Prostaglandinas/uso terapêutico , Administração Oral , Administração Tópica , Alopecia/radioterapia , Agulhamento Seco , Finasterida/administração & dosagem , Cabelo/efeitos dos fármacos , Cabelo/crescimento & desenvolvimento , Humanos , Terapia com Luz de Baixa Intensidade , Masculino , Minoxidil/administração & dosagem , Prostaglandinas/administração & dosagem , Ensaios Clínicos Controlados Aleatórios como Assunto , Resultado do Tratamento
20.
Andrologia ; 52(3): e13516, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31989657

RESUMO

Benign prostatic hyperplasia (BPH) is a pathology characterised by an increase in prostate size associated with low urinary tract symptoms. Finasteride (F), a 5a-reductase inhibitor, is the standard treatment for BPH reducing prostate weight but also sexual desire. The Peruvian plant known as Red Maca (RM) (Lepidium meyenii) inhibits BPH in rats and mice. The aim of the study was to assess the inflammatory effect of RM and finasteride in rats with testosterone enanthate (TE)-induced BPH. Thirty rats were divided into 5 groups: Control, TE (50 mg/rat), TE + F (0.6 mg/kg), and two groups of TE + RM 40/80 (40 or 80 mg). After treatments, tumour necrosis factor alpha (TNFa), interleukin 4 (IL4) and interferon gamma (INFg) as well as testosterone and oestradiol were evaluated and inflammatory cells (neutrophils, mast cells and lymphocytes) in prostate were quantified. Red Maca and finasteride treatments decreased inflammatory cells counts in prostate, inhibiting TNFa by different pathways. Finasteride increased IL4 whereas Red Maca increased INFg. In conclusion, data suggest that finasteride acts on Th2 response by increasing IL4 in prostate, while Red Maca acts on Th1 response mediated by INFg.


Assuntos
Lepidium/química , Extratos Vegetais/farmacologia , Próstata/efeitos dos fármacos , Hiperplasia Prostática/tratamento farmacológico , Transdução de Sinais/efeitos dos fármacos , Inibidores de 5-alfa Redutase/farmacologia , Inibidores de 5-alfa Redutase/uso terapêutico , Animais , Modelos Animais de Doenças , Finasterida/farmacologia , Finasterida/uso terapêutico , Humanos , Interferon gama/metabolismo , Interleucina-4/metabolismo , Masculino , Extratos Vegetais/uso terapêutico , Próstata/citologia , Próstata/imunologia , Próstata/patologia , Hiperplasia Prostática/induzido quimicamente , Hiperplasia Prostática/imunologia , Hiperplasia Prostática/patologia , Ratos , Transdução de Sinais/imunologia , Testosterona/análogos & derivados , Testosterona/toxicidade , Células Th1/efeitos dos fármacos , Células Th1/imunologia , Células Th1/metabolismo , Células Th2/efeitos dos fármacos , Células Th2/imunologia , Células Th2/metabolismo , Fator de Necrose Tumoral alfa/metabolismo
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