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1.
Gynecol Endocrinol ; 34(1): 4-9, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28850273

RESUMO

Polycystic ovary syndrome (PCOS) is a complex endocrine disorder affecting 5-10% of women of reproductive age. It generally shows with oligo/amenorrhea, anovulatory cycles, clinical o biochemical hirsutism, polycystic ovaries and, in a significant percentage of cases, insulin resistance. PCOS is defined as a multifactorial pathology, determined by the association of many factors: genetic, endocrine and environmental. The first and most effective treatment of PCOS is to change life-style and lose weight. The use of oral contraceptives has been shown effective in reducing acne and hirsutism and regulates the menstrual cycle. For women with severe hirsutism, the addition of antiandrogens to estrogen-progestin therapy has significantly improved the results. In cases of anovulatory infertility, the drug of first choice is clomiphene citrate, followed by low-dose gonadotropins. Recently, insulin-sensitizing drugs have been widely prescribed for PCOS patients. They are particularly effective in reducing insulin resistance and improving ovulatory performance. Besides insulin-sensitizing drugs, natural substances, such as inositol, seems to have good efficacy, similar to metformin with fewer side effects. New substances that could be used include statins and natural statins, such as monakolin, alone or combined with myo-inositol. These substances do not have side effects and greatly reduce the hyperandrogenic component in these patients.


Assuntos
Infertilidade Feminina/terapia , Doenças Metabólicas/terapia , Síndrome do Ovário Policístico/complicações , Antagonistas de Androgênios/uso terapêutico , Anovulação/tratamento farmacológico , Anovulação/etiologia , Clomifeno/uso terapêutico , Anticoncepcionais Orais Hormonais/uso terapêutico , Feminino , Gonadotropinas/uso terapêutico , Hirsutismo , Humanos , Hiperandrogenismo/tratamento farmacológico , Infertilidade Feminina/etiologia , Inositol/uso terapêutico , Resistência à Insulina , Estilo de Vida , Doenças Metabólicas/etiologia , Metformina/uso terapêutico , Redução de Peso
2.
Reprod Biol Endocrinol ; 14(1): 38, 2016 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-27423183

RESUMO

Polycystic ovary syndrome (PCOS) is a complex endocrine disorder affecting 5-10 % of women of reproductive age. It generally manifests with oligo/anovulatory cycles, hirsutism and polycystic ovaries, together with a considerable prevalence of insulin resistance. Although the aetiology of the syndrome is not completely understood yet, PCOS is considered a multifactorial disorder with various genetic, endocrine and environmental abnormalities. Moreover, PCOS patients have a higher risk of metabolic and cardiovascular diseases and their related morbidity, if compared to the general population.


Assuntos
Epigênese Genética/fisiologia , Hormônios Esteroides Gonadais/genética , Hormônios Esteroides Gonadais/metabolismo , Síndrome do Ovário Policístico/genética , Síndrome do Ovário Policístico/metabolismo , Animais , Feminino , Hirsutismo/diagnóstico , Hirsutismo/genética , Hirsutismo/metabolismo , Humanos , Hiperandrogenismo/diagnóstico , Hiperandrogenismo/genética , Hiperandrogenismo/metabolismo , Resistência à Insulina/fisiologia , Obesidade/diagnóstico , Obesidade/genética , Obesidade/metabolismo , Síndrome do Ovário Policístico/diagnóstico
3.
Gynecol Endocrinol ; 29(7): 695-9, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23638621

RESUMO

The aim of this multicentre, prospective, randomised, investigator blind, controlled clinical trial was to evaluate the clinical efficacy and tolerability of a highly purified human menopausal gonadotrophin (hMG) preparation (Merional-HG) when administered to patients undergoing controlled ovarian stimulation (COS) for in-vitro fertilisation (IVF) procedure enrolled in hospital departments. One hundred fifty-seven patients were randomised in two parallel groups: 78 started COS with Merional-HG and 79 with Menopur. Results of the study showed that both highly purified hMG preparations were equivalent in terms of number of oocytes retrieved (primary endpoint: 8.8 ± 3.9 versus 8.4 ± 3.8, p = 0.54). In the patients treated with Merional-HG, we observed a higher occurrence of mature oocytes (78.3% versus 71.4%, p = 0.005) and a reduced quantity of gonadotrophins administered per cycle (2.556 ± 636 IU versus 2.969 ± 855 IU, p < 0.001). Fertilisation, cleavage, implantation rates and the number of positive ß-human chorionic gonadotrophin (hCG; pregnancy) tests and the clinical pregnancy rate were comparable in the two groups. Both treatments were well tolerated. In conclusion, the results of this study support the efficacy and safety of Merional-HG administered subcutaneously for assisted reproduction techniques. Efficiency of Merional-HG appears to be higher due to reduced quantity of drug used and the higher yield of mature oocytes retrieved.


Assuntos
Fármacos para a Fertilidade Feminina/administração & dosagem , Fármacos para a Fertilidade Feminina/efeitos adversos , Fertilização in vitro , Infertilidade Feminina/terapia , Menotropinas/administração & dosagem , Indução da Ovulação/métodos , Adulto , Feminino , Humanos , Injeções Subcutâneas , Menotropinas/efeitos adversos , Gravidez , Taxa de Gravidez , Método Simples-Cego , Resultado do Tratamento
4.
Minerva Ginecol ; 65(1): 89-97, 2013 Feb.
Artigo em Italiano | MEDLINE | ID: mdl-23412023

RESUMO

AIM: Polycystic ovary syndrome (PCOS) is a multifactorial pathology affecting 5-10% of the female population. Usually occurs with oligo/amenorrhea, anovulation, hirsutism, polycystic ovaries. Hyperinsulinemia associated with insulin resistance has been causally linked to all features of the syndrome. It has been demonstrated that by reducing hyperinsulinemia, in particular with the administration of metformin, insulin-lowering agents might improve endocrine and reproductive abnormalities in PCOS patients. METHODS: A new molecule with insulin-sensitizing properties, myo-inositol, has recently been successfully administered in women with PCOS. New associations between natural substances like myo-inositol and other components have been proposed to improve the therapeutical efficacy. Among these substances, the monacolin K, a natural statin appeared to have important actions in cholesterol synthesis. In this article we study the effect of inositol alone and the association between myo-inositol and monacolinin K in the treatment of PCOS with insulin resistance, menstrual irregularities and hirsutism. RESULTS AND CONCLUSION: The results of this study demonstrated a good efficacy of both treatments, although in the group treated with the combination of myo-inositol/monacolin K improvement in lipids and hyperandrogenism were significantly better.


Assuntos
Hiperandrogenismo/complicações , Hiperandrogenismo/tratamento farmacológico , Inositol/uso terapêutico , Metabolismo dos Lipídeos , Lovastatina/uso terapêutico , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/metabolismo , Adulto , Quimioterapia Combinada , Feminino , Humanos , Adulto Jovem
5.
Minerva Urol Nefrol ; 62(3): 213-8, 2010 Sep.
Artigo em Italiano | MEDLINE | ID: mdl-20940690

RESUMO

AIM: Among the factors contributing to male infertility, asthenospermia constitutes both a health and a social problem frequently associated with alterations in sexual function. Studies have shown that acetyl carnitine and L-arginine improve sperm motility and that ginseng enhances libido and sexual performance. This study examined the effect of treatment with carnitine, acetyl carnitine, L-arginine and ginseng in men with idiopathic asthenospermia and altered sexual function. METHODS: The study population was 180 patients with asthenospermia randomly assigned to two groups: group A (90 men) received treatment and group B (90 men) did not. The sperm count was 16.6 ± 3.2 x 106/mL and the total sperm motility was 26.5 ± 3.4%. RESULTS AND CONCLUSION: Sexual satisfaction was measured using the sexual satisfaction index (SSI). At the end of therapy, a significant improvement was observed in progressive sperm motility on spermiogram evaluation and in SSI scores in the treatment group.


Assuntos
Arginina/uso terapêutico , Astenozoospermia/tratamento farmacológico , Carnitina/uso terapêutico , Panax , Fitoterapia , Sexualidade/efeitos dos fármacos , Motilidade dos Espermatozoides/efeitos dos fármacos , Acetilcarnitina/uso terapêutico , Adulto , Método Duplo-Cego , Humanos , Masculino , Pessoa de Meia-Idade , Análise do Sêmen , Complexo Vitamínico B/uso terapêutico
6.
Eur Rev Med Pharmacol Sci ; 24(15): 8136-8142, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-32767342

RESUMO

OBJECTIVE: PCOS is the most common endocrinopathy among reproductive age women. Approximately 60% of PCOS women have insulin resistance. While the efficacy of metformin in reducing insulin resistance and decreasing androgen level has been widely validated, there is no agreement on the dose of metformin to be used. PATIENTS AND METHODS: Prospective non-randomized cohort study of 108 insulin resistant, overweight and obese PCOS women, aged between 22 and 35 years. All patients received 1500 mg of metformin (500 mg x 3 times/day) for the first 6 months. At the end of this period, the patients' HOMA index was evaluated. In subjects, who did not demonstrate normalization of the HOMA index, the dose was increased to 2500 mg/day (500 mg at breakfast and 1000 mg at lunch and dinner) for additional 6 months. The hormonal blood profile, fasting insulin and fasting glucose levels, HOMA index, anthropometric assessment, pelvic ultrasound, FAI index and cholesterol were evaluated. RESULTS: Overall results showed a good response to metformin therapy in insulin-resistant PCOS patients with BMI >25, while in patients with higher BMI (31.15 ± 0.40), no normalization of HOMA was found. At the higher dose of metformin, obese patients achieved a good response to therapy, with improvement in BMI, menstrual pattern, cholesterol levels and hyperandrogenism. CONCLUSIONS: Our results demonstrate a correlation between the required dose of metformin, BMI and hyperandrogenism. The dose of metformin should be adjusted to patients' BMI in order to obtain significant results in terms of clinical, metabolic and hormonal responses.


Assuntos
Hipoglicemiantes/uso terapêutico , Metformina/uso terapêutico , Síndrome do Ovário Policístico/tratamento farmacológico , Adulto , Índice de Massa Corporal , Estudos de Coortes , Relação Dose-Resposta a Droga , Feminino , Humanos , Hipoglicemiantes/administração & dosagem , Resistência à Insulina , Metformina/administração & dosagem , Estudos Prospectivos , Resultado do Tratamento , Adulto Jovem
7.
Minerva Ginecol ; 59(5): 473-9, 2007 Oct.
Artigo em Italiano | MEDLINE | ID: mdl-17912173

RESUMO

AIM: Leukocytes are often present in human seminal plasma and more frequently in infertile men. Leukocytospermia is associated with sperm morphological and functional alterations. Immune cell activation leads to an increase of free radical production, without any antioxidant defence activation. Leukocyte presence during sperm maturation and migration through male genital tract and consequently exposure to reactive oxygen species led to sperm alteration: axonemal, acrosomal and nuclear structure damage, associated with necrosis. In order to evaluate the immune-modulating and antioxidative activity of beta-glucan, fermented papaya and lactoferrin associated with vitamins C and E, we analysed sperm characteristics of selected infertile male with astheno-teratospermia and abacterial leukocytosis. METHODS: We selected 20 patients referred to our Sterility Centre for semen analysis with leukocyte concentration higher than 1x106 cell/mL. Seminal quality evaluation was performed according to WHO guidelines (1999) using Papanicolau and eosin staining, before and after three months of treatment with beta-glucan, papaya, lactoferrin, vitamin C and E. RESULTS: After therapy, seminal analysis showed a significant reduction of leukocyte concentration and an increase of sperm motility and normal sperm morphology. CONCLUSION: Our results suggest that a combined immunomodulating and antioxidant treatment protect sperm cells during maturation and migration through the male genital tract, resulting in a functional rescue demonstrated by the improvement of semen quality.


Assuntos
Adjuvantes Imunológicos/uso terapêutico , Antioxidantes/uso terapêutico , Infertilidade Masculina/tratamento farmacológico , Leucocitose/tratamento farmacológico , Espermatozoides/efeitos dos fármacos , Adulto , Ácido Ascórbico/uso terapêutico , Carica , Estudos de Casos e Controles , Quimioterapia Combinada , Frutas , Humanos , Lactoferrina/uso terapêutico , Masculino , Pessoa de Meia-Idade , Fitoterapia/métodos , Resultado do Tratamento , Vitamina E/uso terapêutico , beta-Glucanas/uso terapêutico
8.
Eur Rev Med Pharmacol Sci ; 21(2 Suppl): 15-29, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28724177

RESUMO

OBJECTIVE: Polycystic ovary syndrome (PCOS) is the most common endocrinopathy of women of reproductive age and a complex endocrine condition, due to its heterogeneity and uncertainty about its etiology. However, PCOS is also associated with other metabolic abnormalities such as insulin resistance, impaired glucose tolerance, and diabetes. There are few medications that are approved for the most common symptoms of PCOS, leading to the off-label use of medications that were approved for other indications. One of the most common medications being used off label for PCOS is metformin. Research of other effective therapeutic options has included the utility of inositol. PATIENTS AND METHODS: A systematic literature search of PubMed was performed using the following combination of terms: 'PCOS', 'hyperandrogenism' 'inositol', 'natural molecules'. Only papers published between 2000 and 2016 were included in our analysis. The present review analyzes all aspects of the choice of natural molecules in the treatment of hyperandrogenism and metabolic disorders in PCOS women. RESULTS: The rationale underlying the use of inositols as a therapeutic application in PCOS derives from their activities as insulin mimetic agents and their salutary effects on metabolism and hyperandrogenism without side effects. CONCLUSIONS: In this review will discuss the role of a number of natural associations between inositol and different substances in the treatment of hyperandrogenic symptoms in PCOS women.


Assuntos
Produtos Biológicos/uso terapêutico , Hiperandrogenismo/tratamento farmacológico , Doenças Metabólicas/tratamento farmacológico , Síndrome do Ovário Policístico/tratamento farmacológico , Feminino , Humanos , Hiperandrogenismo/complicações , Doenças Metabólicas/complicações , Síndrome do Ovário Policístico/complicações
9.
Minerva Ginecol ; 58(3): 227-31, 2006 Jun.
Artigo em Italiano | MEDLINE | ID: mdl-16783294

RESUMO

AIM: The aim of this paper was to estimate the effectiveness of the contemporary oral administration of Lactobacilllus paracasei subsp paracasei F19 in association with vaginal suppositories containing Lactobacilllus acidofilus in the treatment of bacterial vaginosis and in the prevention of recurrent vaginitis. METHODS: We have recruited 60 women in good health, aged between 18 and 40 years with suspect or confirmed diagnosis of bacterial vaginosis. The women were randomized in 2 groups: Group A treated with vaginal suppositories containing Lactobacillus acidofilus (Calagin, SIFFRA, Florence); Group B treated with the same vaginal suppositories + probiotic containing Lactobacilllus paracasei subsp paracasei F 19 for oral administration (Gene-filus F19, SIFFRA, Florence). The patients were examined at the end of therapy (3 months) and then after 3 months from the end of treatment. RESULTS: In both groups at end of therapy there was a significant reduction of vaginal pH, an improvement of sniff test and of the subjective symptomatology after 3 months of treatment which still decreased during follow-up (3 months). In Group B there was a meaningful reduction of vaginal pH and of sniff test at the end of therapy and a maintenance of positive effect also after 3 months. CONCLUSIONS: The results obtained in this study show that the therapy with vaginal Lactobacillus in the treatment of bacterial vaginosis is successful. The association of oral administration is useful to balance the vaginal environment with the intestinal microflora with improvement of long-term results. The use of probiotics was determinant in the treatment of a pathology like bacterial vaginosis and as an alternative to the conventional local antibiotic therapies.


Assuntos
Lactobacillus acidophilus , Lactobacillus , Fitoterapia/métodos , Vaginite/prevenção & controle , Vaginose Bacteriana/terapia , Adolescente , Adulto , Feminino , Humanos
10.
Minerva Ginecol ; 67(5): 457-63, 2015 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26491824

RESUMO

AIM: Polycystic ovary syndrome (PCOS) affects 5-10% of women of childbearing age and manifests itself through oligomenorrhea, anovulation, hirsutism, micro-polycystic ovaries. Insulin resistance is a characteristic of PCOS patients and is more pronounced in obese patients. Insulin resistance and consequent hyperinsulinemia are related to many aspects of the syndrome such as hyperandrogenism, reproductive disorders, acne and hirsutism. In the long-term it may increase the risk of cardiovascular disease and negatively affect lipid profile and blood pressure. Changes in lifestyle and diet can partially improve these aspects. The use of insulin-sensitizing drugs such as metformin often normalises the menstrual cycle, improving hyperandrogenism and, subsequently, the response to ovulation induction therapies. New molecules have recently been marketed, that produce the same results, but without the side-effects. One of these is myo-inositol, a new insulin-sensitizing molecule which has been successfully administered to women suffering from PCOS. Associations between inositol and other compounds that can increase the therapeutic effect have been proposed. Of these, we found to be interesting the association with monacolin K, a natural statin that reduces cholesterol levels starting point of the synthesis of steroids, including androgens, and lipoic acid, known for its anti-inflammatory, antioxidant and insulin-sensitizing activity. We decided to assess the efficacy of the product. METHODS: We recruited 30 women aged between 24 and 32 years suffering from PCOS with insulin resistance, HOMA index>2.5 and no other endocrine diseases. The following were assessed: Body Mass Index (BMI), characteristics of menstrual cycles, lipid profile (total cholesterol, and HDL), androgens (total testosterone and androstenedione). The patients were also assessed for the degree of hirsutism using the Ferriman-Gallwey Score>8. The subjects were divided into two groups: Group A, treated with an association of 1 g myo-inositol, 5 mg monacolin K and 400 mg lipoic acid for 6 months; Group B, treated with a double dosage of 2 g myo-inositol, 10 mg monacolin K, 800 mg lipoic acid for 6 months. RESULTS: The results have shown good efficacy of both dosages, although women treated with a double dosage of myo-inositol, monacolin K and lipoic acid showed a significantly greater improvement in terms of lipid parameters and those connected with hyperandrogenism. CONCLUSION: This new myo-inositol, monacolin K and lipoic acid association contains appropriate substances to contrast various etiopathogenic elements responsible for the onset of PCOS and the symptoms of hyperandrogenism and dyslipidemia related to it.


Assuntos
Hiperandrogenismo/tratamento farmacológico , Inositol/uso terapêutico , Lovastatina/uso terapêutico , Síndrome do Ovário Policístico/tratamento farmacológico , Ácido Tióctico/uso terapêutico , Adulto , Antioxidantes/administração & dosagem , Antioxidantes/uso terapêutico , Relação Dose-Resposta a Droga , Quimioterapia Combinada , Dislipidemias/tratamento farmacológico , Dislipidemias/etiologia , Feminino , Hirsutismo/tratamento farmacológico , Hirsutismo/etiologia , Humanos , Hiperandrogenismo/etiologia , Inositol/administração & dosagem , Resistência à Insulina , Lovastatina/administração & dosagem , Síndrome do Ovário Policístico/fisiopatologia , Ácido Tióctico/administração & dosagem , Adulto Jovem
11.
Minerva Ginecol ; 67(6): 515-21, 2015 Dec.
Artigo em Italiano | MEDLINE | ID: mdl-26788874

RESUMO

The onset of vasomotor symptoms in postmenopausal women represents the beginning of a hard period from the emotional point of view which involves some of the most important neurotransmitters. Hot flushes and insomnia associated with a state of anxiety that affect postmenopausal women are included in an index known as the Kupperman Index. The use of nutraceuticals in Italy is increasingly widespread, and only 6-8% of women currently choose to take hormone replacement therapy. The action of these natural supplements primarily depends on the selection of substances and the dose of each single ingredient. Moreover, it also depends on the range of vasomotor symptoms (from mild to moderate/severe). The aim of this study was to test the action of a new product without phytoestrogens containing Cimicifuga racemosa, chasteberry (Vitex agnus-castus), hyaluronic acid, zinc and ginger (ElleN®) in two different groups of women: one with mild and the other with moderate/severe menopausal symptoms. All women received a dose of one tablet per day of ElleN® for three months. Results showed a significant reduction in the Kupperman Index in both groups. The treatment was particularly effective against hot flushes associated with night insomnia and anxiety. The product was well tolerated, did not cause any side effects, and none of the subjects dropped out of the study. In conclusion, it can be stated that the supplement evaluated in the present study is able to reduce moderate/severe menopause symptoms.


Assuntos
Suplementos Nutricionais , Fogachos/tratamento farmacológico , Extratos Vegetais/uso terapêutico , Pós-Menopausa , Distúrbios do Início e da Manutenção do Sono/tratamento farmacológico , Idoso , Feminino , Fogachos/etiologia , Humanos , Itália , Pessoa de Meia-Idade , Fitoterapia/métodos , Extratos Vegetais/química , Estudos Prospectivos , Índice de Gravidade de Doença , Distúrbios do Início e da Manutenção do Sono/etiologia , Resultado do Tratamento
12.
J Clin Endocrinol Metab ; 85(4): 1598-600, 2000 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-10770203

RESUMO

The objective of the present study was to investigate whether metformin affected plasma concentrations of insulin-like growth factor (IGF) I and IGF-binding protein I (IGFBP-I) in polycystic ovary syndrome (PCOS) patients. This was an open study conducted by the Department of Obstetrics and Gynecology at the University of Siena, Italy. Seventeen women with PCOS participated in the study and were administered metformin at a dose of 500 mg three times a day. Treatment was continued for 30-32 days, after which the pretreatment evaluation was repeated. Plasma concentrations of LH, FSH, estradiol, free testosterone, IGF-I, IGFBP-I, sex hormone-binding globulin, and insulin were evaluated. Metformin led to a significant reduction in areas under the insulin curves (9310 +/- 1509 vs. 6520 +/-1108 mU/mL x min; P < 0.05) and was associated with a decrease in plasma free testosterone levels (12.7 +/- 1.7 vs. 10.3 +/- 2 pg/mL; P < 0.05) and an increase in plasma sex hormone-binding globulin concentrations (62 +/- 8 vs. 94 +/- 13 nmol/L; P < 0.05). A nonsignificant increase in plasma IGF-I levels was observed after metformin (276 +/-48 vs. 291 +/- 71 mcg/L), with a significant increase in plasma IGFBP-I levels (0.56 +/- 0.2 vs. 0.98 +/- 0.38 mcg/L; P < 0.05). The IGF-I/IGFBP-I ratio was significantly lower (492.8 +/- 117 vs. 296.9 +/- 82; P < 0.05) at the end of therapy than before treatment. In conclusion, it seems to be appropriate to intervene with an insulin-sensitizing agent such as metformin in an attempt to break the pathogenetic link between hyperinsulinemia and hormonal perturbations in PCOS.


Assuntos
Proteína 1 de Ligação a Fator de Crescimento Semelhante à Insulina/sangue , Fator de Crescimento Insulin-Like I/metabolismo , Metformina/farmacologia , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/tratamento farmacológico , Adulto , Índice de Massa Corporal , Feminino , Humanos , Insulina/sangue , Metformina/efeitos adversos , Ovulação/efeitos dos fármacos , Globulina de Ligação a Hormônio Sexual/metabolismo , Testosterona/sangue
13.
J Clin Endocrinol Metab ; 83(1): 99-102, 1998 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-9435423

RESUMO

Anovulation in women with polycystic ovary syndrome (PCOS) is the direct effect of high local androgen concentrations on the ovary. Antiandrogens are substances that prevent androgens from expressing their activity on target tissues. Flutamide is a nonsteroid antiandrogen that has been found effective in hirsute patients, although its mechanism of action is unclear. Eight girls, ranging in age from 16-19 yr, with moderate to severe hirsutism and menstrual irregularities were enrolled in this study. The basal hormonal pattern showed anovulatory cycles; increased concentrations of LH, androstenedione, and testosterone; and increased LH/FSH ratio. A baseline ultrasound scan revealed polycystic ovaries in all patients. All were given 250 mg flutamide twice a day for 6 months. LH, FSH, androstenedione, testosterone, estradiol, and progesterone were evaluated before treatment, every 4 days during the third month of treatment, and on day 24 of the sixth month of treatment. Hirsutism improved, androgen levels dropped, and ovulatory cycles were restored in all subjects. Ultrasonographic examination in follicular phase showed a significant reduction in ovarian volume and ovaries of normal appearance with one dominant follicle. The most important result of the present study was that flutamide restored ovulation in anovulatory PCOS patients. This finding supports the hypothesis that flutamide reduces androgen synthesis through restoration of ovulation, although a direct block of the steroidogenic enzymes of androgen biosynthesis in ovarian thecal cells cannot be excluded.


Assuntos
Flutamida/uso terapêutico , Síndrome do Ovário Policístico/sangue , Síndrome do Ovário Policístico/tratamento farmacológico , Adolescente , Adulto , Antagonistas de Androgênios/uso terapêutico , Androstenodiona/sangue , Estradiol/sangue , Feminino , Hormônio Foliculoestimulante/sangue , Humanos , Hormônio Luteinizante/sangue , Progesterona/sangue , Globulina de Ligação a Hormônio Sexual/análise , Testosterona/sangue , Fatores de Tempo
14.
Eur J Endocrinol ; 138(4): 430-5, 1998 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-9578512

RESUMO

The hypothalamo-pituitary-adrenal (HPA) axis is modulated by sex hormones. Few data exist on the relation between acute estrogen deficit and HPA axis response to corticotropin-releasing hormone (CRH). The effects of a sudden drop in estradiol levels on basal and CRH-stimulated levels of ACTH, cortisol, testosterone, androstenedione and 17-hydroxyprogesterone (17-OHP) were assessed in nine premenopausal women (44-48 years of age), before and after ovariectomy. The CRH test was performed before and 8 days after ovariectomy. A significant reduction in ACTH and adrenal steroids but not in cortisol response to CRH was observed after ovariectomy. The ratio of deltamax androstenedione/17-OHP after CRH stimulation was substantially the same before and after ovariectomy, whereas deltamax 17-OHP/cortisol was significantly lower in ovariectomized women showing increased 21- and 11beta-hydroxylase activity. The results show that the acute estrogen deficit induces changes in the HPA axis characterized by reduced stimulated secretion of ACTH and steroids but normal stimulated cortisol production.


Assuntos
Sistema Hipotálamo-Hipofisário/fisiologia , Ovário/fisiologia , Sistema Hipófise-Suprarrenal/fisiologia , Pré-Menopausa/fisiologia , 17-alfa-Hidroxiprogesterona/metabolismo , Hormônio Adrenocorticotrópico/metabolismo , Adulto , Análise de Variância , Androstenodiona/metabolismo , Feminino , Humanos , Hidrocortisona/metabolismo , Pessoa de Meia-Idade , Ovariectomia , Testosterona/metabolismo
15.
Obstet Gynecol ; 92(2): 206-11, 1998 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-9699752

RESUMO

OBJECTIVE: To evaluate the role of thyroid hormones in maintaining early pregnancy and to examine the association between thyroid physiological functions and immunological parameters. METHODS: Forty-five pregnant women with a clinical diagnosis of threatened abortion and a live fetus and 30 normal pregnant women were included in the study. Blood samples were taken on admission to the hospital. The patients were divided retrospectively into two groups on the basis of outcome: 1) 31 women who did not miscarry (positive outcome) and 2) 14 women who miscarried (negative outcome). Plasma TSH, free triiodothyronine (fT3), free thyroxine (fT4), hCG, immunoglobulin (Ig) G and IgM concentrations and blood counts were determined in each patient. RESULTS: Human chorionic gonadotropin was significantly higher in women who did not abort (39.4 +/- 16.9 IU/mL) than in women who miscarried (17.6 +/- 14.8 IU/mL, P < .001). Free thyroxine but not fT3 was lower in patients with negative outcome (1.25 +/- 0.26 ng/mL compared with 1.98 +/- 0.22 ng/mL, P < .001) and IgG and IgM plasma levels were higher (780 +/- 500 ng/mL compared with 470 +/- 300 ng/mL and 930 +/- 400 ng/mL compared with 650 +/- 280 ng/mL, respectively, P < .05). Plasma TSH levels were higher in patients with negative outcomes (1.72 +/- 0.84 mIU/mL compared to 1.01 +/- 0.41 mIU/mL, P < .001). Plasma concentrations of hCG and thyroid hormones were significantly correlated with peripheral blood lymphocyte and neutrophil counts only in the group of women who aborted. CONCLUSION: Our results indicate that maternal immune response, trophoblast function, and maternal thyroid function are somehow correlated. The presence of low concentrations of hCG and fT4 and high levels of TSH and gamma globulins in women with threatened abortion suggests a negative outcome for the pregnancy.


Assuntos
Ameaça de Aborto/sangue , Gonadotropina Coriônica/sangue , Tireotropina/sangue , Tiroxina/sangue , Tri-Iodotironina/sangue , Ameaça de Aborto/imunologia , Ameaça de Aborto/fisiopatologia , Adulto , Feminino , Humanos , Imunoglobulina G/sangue , Imunoglobulina M/sangue , Contagem de Linfócitos , Gravidez , Estudos Retrospectivos
16.
Fertil Steril ; 72(2): 282-5, 1999 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10438996

RESUMO

OBJECTIVE: To evaluate whether pretreatment with metformin improves FSH-induced ovulation in women with clomiphene-resistant polycystic ovary syndrome (PCOS). DESIGN: Randomized prospective trial. SETTING: Department of Obstetrics and Gynecology, University of Siena. PATIENT(S): Twenty women with clomiphene citrate-resistant PCOS. INTERVENTION(S): The women were divided randomly into groups A and B (10 subjects each). Group B received 1,500 mg of metformin for at least a month before a single cycle of FSH stimulation. Group A underwent two cycles of FSH stimulation and then received metformin for a month before undergoing a third cycle. MAIN OUTCOME MEASURE(S): The number of FSH ampules, days of treatment, E2 level on the day of hCG, number of follicles > 15 mm, number of hyperstimulation, and the number of cycles with hCG withheld. RESULT(S): The number of follicles > 15 mm in diameter on the day of hCG administration was significantly lower in cycles performed after metformin treatment. The percentage of cycles with hCG withheld because of excessive follicular development was significantly lower in cycles treated with metformin. Plasma levels of E2 were significantly higher in cycles treated with FSH alone than in those treated with FSH and metformin. CONCLUSION(S): By reducing hyperinsulinism, metformin determines a reduction in intraovarian androgens. This leads to a reduction in E2 levels and favors orderly follicular growth in response to exogenous gonadotropins.


Assuntos
Fármacos para a Fertilidade Feminina/uso terapêutico , Hormônio Foliculoestimulante/uso terapêutico , Hipoglicemiantes/uso terapêutico , Metformina/uso terapêutico , Ovulação/efeitos dos fármacos , Síndrome do Ovário Policístico/tratamento farmacológico , Síndrome do Ovário Policístico/fisiopatologia , Adulto , Androstenodiona/sangue , Clomifeno/uso terapêutico , Quimioterapia Combinada , Estradiol/sangue , Feminino , Hormônio Foliculoestimulante/sangue , Humanos , Hormônio Luteinizante/sangue , Gravidez , Estudos Prospectivos , Resultado do Tratamento
17.
Fertil Steril ; 72(6): 985-9, 1999 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-10593368

RESUMO

OBJECTIVE: To determine whether the administration of metformin, an insulin-sensitizing agent, is followed by changes in adrenal steroidogenesis in women with polycystic ovary syndrome (PCOS). DESIGN: Prospective trial. SETTING: Department of Obstetrics and Gynecology, University of Siena, Siena, Italy. PATIENT(S): Fourteen women with PCOS. INTERVENTION(S): Blood samples were obtained before (-15 and 0 minutes) and after (15, 30, 45, and 60 minutes) the administration of ACTH (250 microg). Metformin then was given at a dosage of 500 mg three times a day for 30-32 days, at which time the pretreatment study was repeated. MAIN OUTCOME MEASURE(S): The adrenal androgen responses to ACTH before and after treatment with metformin. RESULT(S): Ovulation occurred in two women (14%) in response to metformin treatment. A significant reduction in basal concentrations of free testosterone and a significant increase in concentrations of sex hormone-binding globulin were observed. The administration of metformin was associated with a significant reduction in the response of 17alpha-hydroxyprogesterone, testosterone, free testosterone, and androstenedione to ACTH. The ratio of 17alpha-hydroxyprogesterone to progesterone, which indicates 17alpha-hydroxylase activity, and the ratio of androstenedione to 17alpha-hydroxyprogesterone, which indicates 17,20-lyase activity, were significantly lower after a month of metformin treatment, indicating a reduction in the activities of these enzymes. CONCLUSION(S): The administration of metformin to unselected women with PCOS led to a reduction in the adrenal steroidogenesis response to ACTH. This finding supports the hypothesis that high insulin levels associated with PCOS may cause an increase in plasma levels of adrenal androgens.


Assuntos
Corticosteroides/biossíntese , Hipoglicemiantes/uso terapêutico , Metformina/uso terapêutico , Síndrome do Ovário Policístico/tratamento farmacológico , Esteroides/biossíntese , Hormônio Adrenocorticotrópico , Adulto , Feminino , Humanos , Síndrome do Ovário Policístico/metabolismo
18.
Maturitas ; 31(2): 171-7, 1999 Jan 04.
Artigo em Inglês | MEDLINE | ID: mdl-10227012

RESUMO

OBJECTIVES: Here we report the results of a study in which natural estrogens were given transdermally cyclically and continuously for 1 year, and a progestin of the latest generation, namely nomegestrol acetate, was given for 10 days every month and for 15 days every 2 months. METHODS: The patients were a group of 34 post-menopausal women (51-56 years), 18 of whom (group A) were treated with continuous transdermal estradiol (50 micrograms/day) and cyclic oral nomegestrol at a dose of 5 mg/day for 15 days every 2 months for 1 year. The other 16 women (group B) were treated with cyclic transdermal estradiol for 3 weeks with oral nomegestrol for 10 days (12-21)/month. Endometrial thickness was evaluated by transvaginal ultrasonography before and after treatment. At the end of treatment, an endometrial biopsy was performed. Serum total cholesterol, HDL, LDL and triglycerides were assessed at baseline and every 4 months. The characteristics of the cycle were deduced from the diary cards recorded by the women. RESULTS: No significant differences were found in the mean interval between the last dose of nomegestrol and the start of bleeding or in the duration of bleeding. The total number of days of bleeding per year was significantly lower in group A than group B (27 +/- 12 vs. 52 +/- 18; P < 0.01). Total serum cholesterol and LDL significantly decreased after 1 year of treatment in both groups, HDL-cholesterol and triglycerides were found increased at most of the time points studied. CONCLUSIONS: The present protocol involving continuous transdermal administration of estrogen combined with oral progestin every 2 months gave good control of the menstrual cycle, did not increase the risk of endometrial pathology and met with good patient compliance.


Assuntos
Endométrio/efeitos dos fármacos , Estradiol/administração & dosagem , Terapia de Reposição de Estrogênios , Megestrol , Norpregnadienos/administração & dosagem , Congêneres da Progesterona/administração & dosagem , Administração Cutânea , Administração Oral , Colesterol/sangue , Esquema de Medicação , Endométrio/diagnóstico por imagem , Endométrio/patologia , Feminino , Humanos , Pessoa de Meia-Idade , Norpregnadienos/farmacologia , Congêneres da Progesterona/farmacologia , Triglicerídeos/sangue , Ultrassonografia , Hemorragia Uterina/induzido quimicamente
19.
Maturitas ; 36(1): 43-7, 2000 Jul 31.
Artigo em Inglês | MEDLINE | ID: mdl-10989241

RESUMO

OBJECTIVE: To assess the effects of bilateral oophorectomy on the resting ECG and whether they regress with estrogen replacement therapy. STUDY DESIGN: Twenty-six premenopausal and 15 postmenopausal women were enrolled in the present study. All women had undergone hysterectomy and bilateral ovariectomy. All women underwent 12-lead ECG on admission to hospital. A second ECG was recorded 20-25 days after surgery. After this second ECG, premenopausal women were randomly divided into two groups. The women of Group A (n=14) received transdermal ethinyl estradiol (EE). The women of Group B (n=12) did not receive any therapy. A third ECG was performed in both groups 30-35 days after randomization. RESULTS: Bilateral oophorectomy did not induce any significant modifications in the ECG parameters of the postmenopausal women whereas in the premenopausal women, we observed a significant increment in mean duration of the T wave, a significant decrease in its amplitude and significant reduction in ST depression in V2, V3, V4 and V5. The third ECG showed regression of the ECG modifications in Group A. In the women of Group B, the second and third ECGs were not substantially different, but there were statistically significant differences between the first and third ECGs. CONCLUSIONS: The results of the present study show that ovariectomy induces significant though not clinically evident modifications in resting ECG. These ECG changes are probably due to the sudden reduction in sex hormone plasma levels after ovariectomy. Administration of estradiol induced regression of the ECG modifications.


Assuntos
Eletrocardiografia/efeitos dos fármacos , Congêneres do Estradiol/farmacologia , Terapia de Reposição de Estrogênios , Etinilestradiol/farmacologia , Ovariectomia , Pré-Menopausa/fisiologia , Administração Cutânea , Congêneres do Estradiol/administração & dosagem , Etinilestradiol/administração & dosagem , Feminino , Coração/efeitos dos fármacos , Coração/fisiologia , Humanos , Pessoa de Meia-Idade , Pós-Menopausa/efeitos dos fármacos , Pós-Menopausa/fisiologia , Período Pós-Operatório , Pré-Menopausa/efeitos dos fármacos , Descanso
20.
Maturitas ; 39(2): 185-8, 2001 Aug 25.
Artigo em Inglês | MEDLINE | ID: mdl-11514117

RESUMO

OBJECTIVE: to evaluate the efficacy of combining kava extract with hormone replacement therapy in the treatment of menopausal anxiety. MATERIALS AND METHODS: HAMA score was evaluated before and after therapy in four groups of women in menopause (duration of menopause ranged from 1 to 12 years). The groups were treated with hormone replacement therapy (with and without progestogens) and kava extract or placebo for 6 months. RESULTS: A significant reduction in HAMA score was observed in all four groups of women. The reduction was more significant in groups taking kava extract than in groups on hormones only. DISCUSSION: The combined use of hormone replacement therapy and kava extract seems to be effective against menopausal anxiety. Kava extract accelerates resolution of psychological symptoms while hormone therapy safeguards against osteoporosis and cardiovascular disease.


Assuntos
Ansiedade/prevenção & controle , Terapia de Reposição Hormonal , Kava/uso terapêutico , Menopausa , Fitoterapia , Plantas Medicinais , Feminino , Humanos , Pessoa de Meia-Idade , Extratos Vegetais/uso terapêutico , Resultado do Tratamento
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