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1.
BMC Womens Health ; 23(1): 316, 2023 06 17.
Artigo em Inglês | MEDLINE | ID: mdl-37330509

RESUMO

BACKGROUND: Intrahepatic cholestasis of pregnancy (ICP) in the first trimester occurring after ovarian hyperstimulation syndrome (OHSS) is a rare condition and few cases are reported in the literature. Hyperestrogenism may explain this problem in genetically predisposed women. The objective of this article is to report one of these rare cases and offer an overview of the other published cases. CASE PRESENTATION: We report a case of severe OHSS followed by ICP in the first trimester. The patient was admitted to the intensive care unit and was treated according to the guidelines for the management of OHSS. Moreover, the patient also received ursodeoxycholic acid for ICP, which brought to an improvement of her clinical conditions. The pregnancy continued without other complications until the 36th week of gestation, when the patient developed ICP in the third trimester and underwent cesarean section for increased bile acid levels and cardiotocographic (CTG) pathologic alterations. The newborn was a healthy baby weighing 2500 gr. We also reviewed other case reports published by other authors about this clinical condition. We present what is, to our knowledge, the first case of ICP developed in the first trimester of pregnancy after OHSS in which genetic polymorphisms of ABCB4 (MDR3) have been investigated. CONCLUSIONS: ICP in the first trimester might be induced by elevated serum estrogen levels after OHSS in genetically predisposed women. In these women, it might be useful to check for genetic polymorphisms to know if they have a predisposition for ICP recurrence in the third trimester of pregnancy.


Assuntos
Colestase Intra-Hepática , Síndrome de Hiperestimulação Ovariana , Complicações na Gravidez , Recém-Nascido , Gravidez , Feminino , Humanos , Síndrome de Hiperestimulação Ovariana/complicações , Síndrome de Hiperestimulação Ovariana/genética , Cesárea/efeitos adversos , Complicações na Gravidez/tratamento farmacológico , Colestase Intra-Hepática/complicações , Colestase Intra-Hepática/genética , Predisposição Genética para Doença
2.
J Assist Reprod Genet ; 40(12): 2819-2825, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37796419

RESUMO

Fertility preservation in pregnant women recently diagnosed with cancer can be a challenge. Raised levels of human chorionic gonadotropin (Beta-hCG) and progesterone in this population of patients may pose a problem for the prompt initiation of controlled ovarian stimulation (COS) due to a potential negative feedback of these hormones on folliculogenesis; however, it is not feasible to wait for negativization of serum beta-hCG levels before starting controlled ovarian stimulation. In literature, very few cases have been reported regarding the preservation of fertility in pregnant women recently diagnosed with cancer. We performed an extended revision of the literature to evaluate the current knowledge of the management of fertility preservation in women with cancer and we examined two cases closely. The first case study involved a cancer patient who underwent surgical abortion at 6.5 weeks of gestation followed by administration of mifepristone to detach any minimal residual trophoblast and consequently to decrease serum beta-hCG and progesterone levels before starting COS. In the second case study, the cancer patient underwent surgical abortion at 7.1 weeks of gestation and simultaneous unilateral oophorectomy for ovarian tissue cryopreservation due to a limited time for COS. By analyzing the results of these studies, it could be hypothesized that mifepristone administration may favor the decrease of serum beta-hCG and progesterone levels in order to permit rapid initiation of COS. In cases where COS is not feasible, ovarian tissue cryopreservation should be considered as an alternative fertility preservation technique.


Assuntos
Preservação da Fertilidade , Neoplasias , Humanos , Feminino , Gravidez , Preservação da Fertilidade/métodos , Progesterona , Primeiro Trimestre da Gravidez , Mifepristona/uso terapêutico , Criopreservação/métodos , Neoplasias/complicações , Neoplasias/tratamento farmacológico , Indução da Ovulação/métodos
3.
Telemed J E Health ; 29(3): 459-465, 2023 03.
Artigo em Inglês | MEDLINE | ID: mdl-35833792

RESUMO

Background: Restrictive measures imposed to prevent COVID-19 contagion have caused an increase in waiting times for other health procedures. During the pandemic, utilization of telemedicine has increased to ensure patient care safely. The aim of this study was to evaluate the perspective of infertile patients who underwent virtual consultations for infertility. Materials and Methods: This was an observational study. A survey was submitted to patients who attended a virtual consultation at a single in vitro fertilization (IVF) unit between March 2020 and July 2021. The survey concerned their experience with telemedicine assessing the experience of video consulting and the software characteristics. Results: The survey response rate was 50.3% (n = 159). In total, 98.8% of patients positively rated the experience of telemedicine. Regarding the software itself, it was defined as intuitive and easy to use by 87.4% of patients. A majority (92.5%) of interviewed patients reported that they were able to receive the information and clear any doubts they had and 85.5% of interviewed patients would repeat the experience of video consultation. Conclusions: The acceptance of telemedicine was very high among infertile patients. However, IVF treatments have a strong emotional component and face-to-face consultation with medical staff might help to create the right climate of trust, and the empathy that can be demonstrated during a vis-à-vis meeting cannot be achieved through a screen. The use of telemedicine should be considered in those situations where it is not possible to attend an in-person consultation or when couples prefer it.


Assuntos
COVID-19 , Telemedicina , Humanos , COVID-19/epidemiologia , Pandemias/prevenção & controle , Telemedicina/métodos , Encaminhamento e Consulta , Reprodução
4.
Prz Menopauzalny ; 22(1): 55-57, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-37206679

RESUMO

Membranous dysmenorrhoea is an uncommon condition characterized by the spontaneous flaking of endometrium into a single piece that maintains the shape of the uterus. The common symptom of membranous dysmenorrhoea is a colicky pain caused by uterine contractions. Because only a limited number of cases have been published in the literature, the case report we present is peculiar. This report describes a case of membranous dysmenorrhoea that occurred after an artificial frozen thawed embryo transfer cycle using vaginal progesterone. The patient, during hormone replacement treatment, reported an intense abdominal colicky pain resulting in the loss of membranous endometrial tissue. A histopathological exam was performed with a clear diagnosis of membranous dysmenorrhoea. Moreover, photos were recorded and provided together with this article. The importance of such a case report relies on the actual debate about the appropriate progesterone route of administration. Although different medical approaches exist, progesterone administration is the most widespread. However, the intramuscular, oral, and subcutaneous means of administration are gaining popularity. On this peculiar case report, the patient underwent a subsequent frozen thawed embryo transfer cycle with subcutaneous progesterone administration. The embryo transfer resulted first in a clinical pregnancy and subsequently in a spontaneous delivery without any complications.

5.
Reprod Biomed Online ; 45(2): 256-263, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35610154

RESUMO

RESEARCH QUESTION: The IVF Lite programme is based on mild ovarian stimulation including up to three fresh/frozen embryo transfers within 12 months. Is it effective and safe in good prognosis patients? DESIGN: Single-centre prospective study on infertile patients at their first IVF attempt (female age ≤38 years, anti-Müllerian hormone concentrations >1.5 ng/ml and/or FSH ≤10 mIU/ml). Induction of multiple follicular growth was based on a fixed protocol consisting of clomiphene citrate (100 mg/day) from day 3 to 7 of the menstrual cycle and 150 IU of recombinant FSH on days 5, 7 and 9. In case of low follicular recruitment (fewer than four follicles), the cycle was cancelled. The IVF Lite programme was considered complete after a live birth delivery or up to three embryo transfers within 12 months. The primary outcome was the cumulative live birth rate (cLBR) per couples that completed the programme. RESULTS: A total of 369 patients completed the IVF Lite programme, with 239 live births; 132 patients delivered after one embryo transfer (35.8%), 70 after a second embryo transfer (cLBR 54.7%), and 37 after a third attempt (cLBR 64.8%). No cases of ovarian hyperstimulation syndrome or clinical complications occurred. Spontaneous dropout rate from the programme was 4.5%. The cLBR per intention to treat was 46.8%. CONCLUSIONS: The IVF Lite programme proved to be effective and safe in good prognosis patients with a good response to clomiphene citrate stimulation. It was well tolerated and implied low gonadotrophin consumption. Two-thirds of the patients achieved a live birth at the completion of the programme.


Assuntos
Nascido Vivo , Indução da Ovulação , Adulto , Coeficiente de Natalidade , Clomifeno/uso terapêutico , Feminino , Fertilização in vitro/métodos , Hormônio Foliculoestimulante/uso terapêutico , Humanos , Indução da Ovulação/métodos , Gravidez , Taxa de Gravidez , Prognóstico , Estudos Prospectivos
6.
J Assist Reprod Genet ; 39(1): 219-226, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34791588

RESUMO

PURPOSE: The current gold standard for chronic endometritis (CE) diagnosis is immunohistochemistry (IHC) for CD-138. However, IHC for CD-138 is not exempt from diagnostic limitations. The aim of our study was to evaluate the reliability and accuracy of MUM-1 IHC, as compared with CD-138. METHODS: This is a multi-centre, retrospective, observational study, which included three tertiary hysteroscopic centres in university teaching hospitals. One hundred ninety-three consecutive women of reproductive age were referred to our hysteroscopy services due to infertility, recurrent miscarriage, abnormal uterine bleeding, endometrial polyps or myomas. All women underwent hysteroscopy plus endometrial biopsy. Endometrial samples were analysed through histology, CD138 and MUM-1 IHC. The primary outcome was to evaluate the diagnostic accuracy of MUM-1 IHC for CE, as compared with CD-138 IHC. RESULTS: Sensitivity and specificity of CD-138 and MUM-1 IHC were respectively 89.13%, 79.59% versus 93.48% and 85.03%. The overall diagnostic accuracy of MUM-1 and CD-138 IHC were similar (AUC = 0.893 vs AUC = 0.844). The intercorrelation coefficient for single measurements was high between the two techniques (ICC = 0.831, 0.761-0.881 95%CI). However, among CE positive women, MUM-1 allowed the identification of higher number of plasma cells/hpf than CD-138 (6.50 [SD 4.80] vs 5.05 [SD 3.37]; p = 0.017). Additionally, MUM-1 showed a higher inter-observer agreement as compared to CD-138. CONCLUSION: IHC for MUM-1 and CD-138 showed a similar accuracy for detecting endometrial stromal plasma cells. Notably, MUM-1 showed higher reliability in the paired comparison of the individual samples than CD-138. Thus, MUM-1 may represent a novel, promising add-on technique for the diagnosis of CE.


Assuntos
Endometrite/diagnóstico , Imuno-Histoquímica/métodos , Fatores Reguladores de Interferon/imunologia , Adulto , Biomarcadores/análise , Biomarcadores/sangue , Endometrite/sangue , Feminino , Humanos , Imuno-Histoquímica/estatística & dados numéricos , Reprodutibilidade dos Testes , Estudos Retrospectivos , Espanha , Sindecana-1/análise
7.
Int J Mol Sci ; 24(1)2022 Dec 24.
Artigo em Inglês | MEDLINE | ID: mdl-36613755

RESUMO

Endometriosis is a chronic inflammatory disease associated with pelvic pain, infertility, and increased cardiovascular risk. Recent studies suggest a possible role of aldosterone as a pro-inflammatory hormone in the pathogenesis of the disease. Cortisol is also an important mediator of stress reaction, but its role is controversial in endometriosis. The aim of this study was to evaluate aldosterone and cortisol levels and blood pressure values in women with endometriosis. We measured blood pressure, plasma aldosterone, renin, cortisol, and dehydroepiandrosterone sulfate (DHEAS) in 20 women with untreated minimal or mild pelvic endometriosis compared with 20 healthy controls matched for age and body mass index. Aldosterone values were similar in the two groups, while renin was significantly lower and the aldosterone to renin ratio was significantly higher in patients with endometriosis than in controls. Systolic blood pressure was in the normal range, but significantly higher in patients with endometriosis. Morning plasma cortisol was normal, but significantly lower in patients with endometriosis compared with controls, while DHEAS to cortisol ratio was similar in the two groups. These preliminary results are evidence of increased biological aldosterone activity and dysregulation of the hypothalamic-pituitary-adrenal axis in early stages of endometriosis. These alterations could play a role in disease development, suggesting new therapeutic targets for aldosterone receptor blockers.


Assuntos
Endometriose , Hiperaldosteronismo , Humanos , Feminino , Sistema Renina-Angiotensina/fisiologia , Hidrocortisona , Aldosterona , Renina , Sistema Hipotálamo-Hipofisário , Sistema Hipófise-Suprarrenal/fisiologia
8.
Int J Mol Sci ; 22(16)2021 Aug 06.
Artigo em Inglês | MEDLINE | ID: mdl-34445180

RESUMO

Endometriosis, an estrogen-dependent chronic gynecological disease, is characterized by a systemic inflammation that affects circulating red blood cells (RBC), by reducing anti-oxidant defenses. The aim of this study was to investigate the potential beneficial effects of licorice intake to protect RBCs from dapsone hydroxylamine (DDS-NHOH), a harmful metabolite of dapsone, commonly used in the treatment of many diseases. A control group (CG, n = 12) and a patient group (PG, n = 18) were treated with licorice extract (25 mg/day), for a week. Blood samples before (T0) and after (T1) treatment were analyzed for: i) band 3 tyrosine phosphorylation and high molecular weight aggregates; and ii) glutathionylation and carbonic anhydrase activity, in the presence or absence of adjunctive oxidative stress induced by DDS-NHOH. Results were correlated with plasma glycyrrhetinic acid (GA) concentrations, measured by HPLC-MS. Results showed that licorice intake decreased the level of DDS-NHOH-related oxidative alterations in RBCs, and the reduction was directly correlated with plasma GA concentration. In conclusion, in PG, the inability to counteract oxidative stress is a serious concern in the evaluation of therapeutic approaches. GA, by protecting RBC from oxidative assault, as in dapsone therapy, might be considered as a new potential tool for preventing further switching into severe endometriosis.


Assuntos
Anti-Infecciosos/efeitos adversos , Dapsona/efeitos adversos , Endometriose/induzido quimicamente , Glycyrrhiza , Extratos Vegetais/uso terapêutico , Substâncias Protetoras/uso terapêutico , Adulto , Antioxidantes/uso terapêutico , Endometriose/prevenção & controle , Eritrócitos/efeitos dos fármacos , Feminino , Glycyrrhiza/química , Humanos , Estresse Oxidativo/efeitos dos fármacos , Adulto Jovem
9.
Eur J Nutr ; 59(7): 2841-2856, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32372265

RESUMO

OBJECTIVE: Several randomized controlled trials (RCTs) have investigated the use of probiotic/synbiotic in PCOS patients, without clarifying the real use in clinical practice. The aim of this meta-analysis was to evaluate the effectiveness of probiotics and synbiotics on metabolic, hormonal and inflammatory parameters of PCOS. METHODS: Electronic databases (MEDLINE, Scopus, EMBASE, ScienceDirect, The Cochrane Database of Systematic Reviews and ClinicalTrials.gov) were searched from their inception until May 2019. The study protocol was registered in PROSPERO with number CRD42018111534. Randomized controlled trials (RCTs) of PCOS's women undergoing therapy at least 8 weeks with probiotics or synbiotics or without therapy were included. The primary outcomes were changes in anthropometric parameters, glucose/insulin metabolism, lipid profile, sex hormones profile, inflammation markers. RESULTS: 587 patients were included in nine RCT. The administration of probiotic/synbiotic were associated with a significant improvement in FPG, FBI, HOMA I-R, BMI. It also modified Ferriman-Gallway, serum triglycerides, serum testosterone, hs-CRP, NO, TAC, GSH, and MDA. Subgroup analysis of the type of intervention showed that probiotics were associated with greater testosterone and FPG reduction; synbiotics administration resulted in a more pronounced decrease of the FBI. Subgroup analyses on the duration of therapy showed that, probiotic/synbiotic administration had a significantly greater effect on QUICK-I in the case of women with 12-weeks of therapy than in the 8-weeks therapy group. Nevertheless, we did not observe any significant difference was observed in terms of FBI, HOMA-IR, and FPG. CONCLUSIONS: Probiotics and synbiotics seem to either an effect on/influence metabolic, hormonal and inflammatory parameters, or can influence them. Consequently, it could lead to an improvement of fertility in PCOS.


Assuntos
Resistência à Insulina , Síndrome do Ovário Policístico , Probióticos , Simbióticos , Feminino , Humanos , Insulina , Síndrome do Ovário Policístico/terapia
10.
J Assist Reprod Genet ; 37(12): 2897-2911, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33025403

RESUMO

PURPOSE: Chronic endometritis (CE) is a frequent hysteroscopic and histological finding which affects embryo transfer implantation during IVF-ICSI cycles. In particular, CE impairs proper decidualization and, subsequently, implantation. Although this correlation has been clearly clarified, a pathophysiological explanation assembling all the studies performed has not been elucidated yet. For this reason, we have structured a systematic review considering all the original articles that evaluated a pathological element involved in CE and implantation impairment. METHODS: The authors searched electronic databases and, after screening, collected 15 original articles. These were fully scanned and used to create a summary pathway. RESULTS: CE is primarily caused by infections, which lead to a specific cytokine and leukocyte pattern in order to prepare the uterus to fight the noxa. In particular, the immunosuppression requested for a proper semi-allogenic embryo transfer implantation is converted into an immunoreaction, which hampers correct embryo implantation. Moreover, endometrial vascularization is affected and both irregular vessel density and luminal thickening and thrombosis reduce what we have first identified as endometrial flow reserve. Finally, incorrect uterine wave propagation could affect embryo contact with decidua. CONCLUSION: This is the first summary of evidence on CE pathophysiology and its relationship with infertility. Understanding the CE pathophysiology could improve our knowledge in embryo transfer success.


Assuntos
Implantação do Embrião , Endometrite/fisiopatologia , Fertilização in vitro/efeitos adversos , Infertilidade Feminina/terapia , Doença Crônica , Endometrite/complicações , Feminino , Humanos , Infertilidade Feminina/etiologia , Infertilidade Feminina/patologia , Gravidez , Taxa de Gravidez
11.
Int J Mol Sci ; 21(11)2020 Jun 05.
Artigo em Inglês | MEDLINE | ID: mdl-32517126

RESUMO

Bicarbonate uptake is one of the early steps of capacitation, but the identification of proteins regulating anion fluxes remains elusive. The aim of this study is to investigate the role of sperm solute carrier 4 (SLC4) A1 (spAE1) in the capacitation process. The expression, location, and tyrosine-phosphorylation (Tyr-P) level of spAE1 were assessed. Thereby, it was found that 4,4'-Diisothiocyano-2,2'-stilbenedisulfonic acid (DIDS), an SLC4 family channel blocker, inhibited capacitation in a dose-dependent manner by decreasing acrosome reaction (ARC% 24.5 ± 3.3 vs 64.9 ± 4.3, p < 0.05) and increasing the percentage of not viable cells (NVC%), comparable to the inhibition by I-172, a cystic fibrosis transmembrane conductance regulator (CFTR) blocker (AR% 30.5 ± 4.4 and NVC% 18.6 ± 2.2). When used in combination, a synergistic inhibitory effect was observed with a remarkable increase of the percentage of NVC (45.3 ± 4.1, p < 0.001). spAE1 was identified in sperm membrane as a substrate for Tyr-protein kinases Lyn and Syk, which were identified as both soluble and membrane-bound pools. spAE1-Tyr-P level increased in the apical region of sperm under capacitating conditions and was negatively affected by I-172 or DIDS, and, to a far greater extent, by a combination of both. In conclusion, we demonstrated that spAE1 is expressed in sperm membranes and it is phosphorylated by Syk, but above all by Lyn on Tyr359, which are involved in sperm viability and capacitation.


Assuntos
Proteínas SLC4A/metabolismo , Capacitação Espermática/fisiologia , Espermatozoides/fisiologia , Tirosina/metabolismo , Reação Acrossômica , Membrana Celular , Sobrevivência Celular , Regulador de Condutância Transmembrana em Fibrose Cística/genética , Regulador de Condutância Transmembrana em Fibrose Cística/metabolismo , Humanos , Masculino , Fosforilação , Proteínas SLC4A/genética
12.
J Assist Reprod Genet ; 36(4): 673-683, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30610664

RESUMO

PURPOSE: The aim of the present systematic review and meta-analysis was to summarize evidence on the effectiveness of testosterone supplementation for poor ovarian responders (POR) on IVF outcomes. The primary outcome was live birth rate (LBR); secondary outcomes were clinical pregnancy rate (CPR), miscarriage rate (MR), total and MII oocytes, and total embryos. METHODS: This meta-analysis of randomized controlled trials (RCTs) evaluates the effects of testosterone administration before/during COS compared with a control group in patients defined as POR. The primary outcome was live birth rate (LBR); secondary outcomes were clinical pregnancy rate (CPR), miscarriage rate (MR), total and MII oocytes, and total embryos. Pooled results were expressed as risk ratio (RR) or mean differences (MD) with 95% confidence interval (95% CI). Sources of heterogeneity were investigated through sensitivity and subgroup analysis. All analyses were performed by using the random-effects model. RESULTS: Women receiving testosterone showed higher LBR (RR 2.29, 95% CI 1.31-4.01, p = 0.004), CPR (RR 2.32, 95% CI 1.47-3.64, p = 0.0003), total oocytes (MD = 1.28 [95% CI 0.83, 1.73], p < 0.00001), MII oocytes (MD = 0.96 [95% CI 0.28, 1.65], p = 0.006), and total embryos (MD = 1.17 [95% CI 0.67, 1.67], p < 0.00001) in comparison to controls, with no difference in MR (p = ns). Sensitivity and subgroup analysis did not provide statistical changes to the pooled results. CONCLUSIONS: Testosterone therapy seems promising to improve the success at IVF in POR patients. Further RCTs with rigorous methodology and inclusion criteria are still mandatory.


Assuntos
Aborto Espontâneo/tratamento farmacológico , Fertilização in vitro/efeitos dos fármacos , Infertilidade Feminina/tratamento farmacológico , Testosterona/uso terapêutico , Aborto Espontâneo/fisiopatologia , Hormônio Antimülleriano , Coeficiente de Natalidade , Feminino , Humanos , Infertilidade Feminina/fisiopatologia , Nascido Vivo , Oócitos/efeitos dos fármacos , Oócitos/crescimento & desenvolvimento , Indução da Ovulação/métodos , Gravidez , Resultado da Gravidez , Taxa de Gravidez , Ensaios Clínicos Controlados Aleatórios como Assunto
13.
Arch Gynecol Obstet ; 299(1): 55-68, 2019 01.
Artigo em Inglês | MEDLINE | ID: mdl-30564926

RESUMO

PURPOSE: Inositol (ISL) embraces a family of simple carbohydrates with insulin-sensitizing properties, whose most common isoforms are Myo-inositol (MYO) and D-chiro inositol (DCI). The aim of the present study was to assess the efficacy and safety of ISL supplementation during pregnancy for the prevention of gestational diabetes (GDM). METHODS: We conducted a systematic literature search in electronic databases until October 2017. We included all randomized controlled trials (RCTs) comparing pregnant women with GDM who were randomized to either ISL (i.e., intervention group) or either placebo or no treatment (i.e., control group). The primary outcome was the preventive effect on GDM, defined as the rate of GDM in women without a prior diagnosis of GDM. Pooled results were expressed as odds ratio (OR) with a 95% confidence interval (95% CI). RESULTS: Five RCTs were included (including 965 participants). ISL supplementation was associated with lower rate of GDM (OR 0.49, 95% CI 0.24-1.03, p = 0.01) and lower preterm delivery rate (OR 0.35, 95% CI 0.17-0.74, p = 0.006). No adverse effects were reported. Adjusting for the type of intervention (MYO 2 g twice daily vs MYO 1100 mg plus DCI 27.6 mg daily), a significant effect was found only in patients receiving 2 g MYO twice daily. CONCLUSIONS: ISLs administration during pregnancy appears to be safe and may represent a novel strategy for GDM prevention. In particular, the double administration of MYO 2 g per day may improve the glycemic homeostasis and may reduce GDM rate and preterm delivery rate.


Assuntos
Diabetes Gestacional/prevenção & controle , Inositol/administração & dosagem , Ensaios Clínicos Controlados Aleatórios como Assunto , Complexo Vitamínico B/administração & dosagem , Adulto , Glicemia , Feminino , Humanos , Recém-Nascido , Inositol/uso terapêutico , Insulina/uso terapêutico , Razão de Chances , Gravidez , Nascimento Prematuro/tratamento farmacológico , Complexo Vitamínico B/uso terapêutico , Adulto Jovem
14.
Gynecol Endocrinol ; 34(3): 233-237, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29037103

RESUMO

Polycystic ovary syndrome (PCOS)is a gynecological endocrine disorder which is associated with systemic inflammatory status inducing red blood cells (RBC) membrane alterations related to insulin resistance and testosterone levels which could be greatly improved by myo-inositol (MYO) uptake. In this study we aim to evaluate the effect of MYO in reducing oxidative-related alterations through in vitro study on PCOS RBC. Blood samples from two groups of volunteers, control group (CG, n = 12) and PCOS patient group (PG, n = 12), were analyzed for band 3 tyrosine phosphorylation (Tyr-P), high molecular weight aggregate (HMWA), IgG in RBC membranes, and glutathione (GSH) in cytosol, following O/N incubation in the presence or absence of MYO. PCOS RBC underwent oxidative stress as indicated by higher band 3 Tyr-P and HMWA and increased membrane bound autologous IgG. Twenty four hours (but not shorter time) MYO incubation, significantly improved both Tyr-P level and HMWA formation and concomitant membrane IgG binding. However, no relevant modification of GSH content was detected. PCOS RBC membranes are characterized by increased oxidized level and enhanced sensitivity to oxidative injuries leading to potential premature RBC removal. MYO treatment is effective in reducing oxidative related abnormalities in PCOS patients probably restoring the inositol phospholipid pools of the membranes.


Assuntos
Eritrócitos/efeitos dos fármacos , Inositol/farmacologia , Síndrome do Ovário Policístico/sangue , Adulto , Eritrócitos/metabolismo , Feminino , Glutationa/metabolismo , Humanos , Imunoglobulina G/metabolismo , Fosforilação/efeitos dos fármacos , Adulto Jovem
15.
Mar Drugs ; 16(11)2018 Nov 02.
Artigo em Inglês | MEDLINE | ID: mdl-30400141

RESUMO

Astaxanthin (Asta), red pigment of the carotenoid family, is known for its anti-oxidant, anti-cancer, anti-diabetic, and anti-inflammatory properties. In this study, we evaluated the effects of Asta on isolated human sperm in the presence of human papillomavirus (HPV) 16 capsid protein, L1. Sperm, purified by gradient separation, were treated with HPV16-L1 in both a dose and time-dependent manner in the absence or presence of 30 min-Asta pre-incubation. Effects of HPV16-L1 alone after Asta pre-incubation were evaluated by rafts (CTB) and Lyn dislocation, Tyr-phosphorylation (Tyr-P) of the head, percentages of acrosome-reacted cells (ARC) and endogenous reactive oxygen species (ROS) generation. Sperm membranes were also analyzed for the HPV16-L1 content. Results show that HPV16-L1 drastically reduced membrane rearrangement with percentage of sperm showing head CTB and Lyn displacement decreasing from 72% to 15.8%, and from 63.1% to 13.9%, respectively. Accordingly, both Tyr-P of the head and ARC decreased from 68.4% to 10.2%, and from 65.7% to 14.6%, respectively. Asta pre-incubation prevented this drop and restored values of the percentage of ARC up to 40.8%. No alteration was found in either the ROS generation curve or sperm motility. In conclusion, Asta is able to preserve sperm by reducing the amount of HPV16-L1 bound onto membranes.


Assuntos
Reação Acrossômica/efeitos dos fármacos , Proteínas do Capsídeo/metabolismo , Papillomavirus Humano 16/patogenicidade , Proteínas Oncogênicas Virais/metabolismo , Espermatozoides/efeitos dos fármacos , Membrana Celular/efeitos dos fármacos , Membrana Celular/metabolismo , Membrana Celular/virologia , Clorofíceas/química , Avaliação Pré-Clínica de Medicamentos , Humanos , Masculino , Infecções por Papillomavirus/prevenção & controle , Infecções por Papillomavirus/virologia , Ligação Proteica/efeitos dos fármacos , Espécies Reativas de Oxigênio , Capacitação Espermática/efeitos dos fármacos , Motilidade dos Espermatozoides/efeitos dos fármacos , Espermatozoides/virologia , Xantofilas/farmacologia , Xantofilas/uso terapêutico
16.
Arch Gynecol Obstet ; 298(4): 675-684, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30078122

RESUMO

PURPOSE: To evaluate whether oral myo-inositol supplementation (MI) is able to reduce the amount of gonadotropins (GA) and the length of controlled ovarian hyperstimulation (SL) in both Polycystic Ovarian Syndrome (PCOS) and non-PCOS women undergoing in vitro fertilization (IVF). METHODS: We performed a systematic review (PROSPERO ID: CRD42017069439) of randomized controlled trials (RCTs). We searched articles published in English between January 1985 to August 2017, using the combination of the Medical Subject Headings "Inositol" with "Ovulation Induction", "follicle-stimulating hormone, human, with HCG C-terminal peptide", "Reproductive Techniques, Assisted", and "Fertilization in Vitro". We collected data about GA and SL comparing MI to no treatment or D-Chiro-Inositol (DCI) supplementation (controls). A subgroup analysis was performed to evaluate selected outcomes in PCOS and non-PCOS women. RESULTS: We included 8 studies embedding 812 participants. We found a reduction in GA (p < 0.00001) and SL (p = 0.0007) in patients receiving MI with respect to controls. MI was effective in both PCOS (p < 0.00001) and non-PCOS women (p = 0.02) in reducing GA; conversely, MI supplementation decreased the SL only in PCOS women (p < 0.00001). CONCLUSION: During IVF, MI is effective in both PCOS and non-PCOS women in saving gonadotropins, but reduces efficiently SL only in PCOS women.


Assuntos
Fertilização in vitro/métodos , Gonadotropinas/administração & dosagem , Inositol/administração & dosagem , Indução da Ovulação , Síndrome do Ovário Policístico/fisiopatologia , Suplementos Nutricionais , Feminino , Humanos , Indução da Ovulação/métodos , Ensaios Clínicos Controlados Aleatórios como Assunto
18.
Gynecol Endocrinol ; 33(4): 311-314, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27910716

RESUMO

Persistent amenorrhea is a frequent condition affecting anorexic patients after stable weight recovery. It has been proposed that it could be due to alterations of the hypothalamic-pituitary-gonadal axis linked with persistent hormonal impairments, such as relative hypercortisolemia and hypoleptinemia, and psychological symptoms related to anorexia nervosa (AN). The aim of our study was to evaluate the metabolic and hormonal pattern involved in the persistence of amenorrhea after recovery from AN. Eight weight-recovered anorexic patients with amenorrhea were investigated and matched with 10 healthy eumenorrhoic women, comparable for age and BMI. Data showed basal FSH and LH values similar in both groups and a normal pituitaric response to LHRH administration. Morning serum cortisol was normal but significantly higher in patients, while dehydroepiandrosterone sulfate (DHEAS) to cortisol ratio, leptin and vitamin D were significantly lower in patients than controls. Women with previous AN presented insulin resistance and two patients showed an overall picture consistent with polycystic ovary syndrome (PCOS). In conclusion, long-lasting amenorrhea after recovery from AN is linked with a persistent hypothalamic dysfunction, although other concomitant causes like PCOS and insulin resistance should be considered. Decreased DHEAS to cortisol ratio is a new finding which could be correlated to the persistent hypogonadism.


Assuntos
Amenorreia/sangue , Anorexia Nervosa/complicações , Sulfato de Desidroepiandrosterona/sangue , Hidrocortisona/sangue , Resistência à Insulina/fisiologia , Adolescente , Adulto , Amenorreia/etiologia , Peso Corporal , Feminino , Hormônio Foliculoestimulante/sangue , Humanos , Hormônio Luteinizante/sangue , Síndrome do Ovário Policístico/sangue , Adulto Jovem
19.
Gynecol Endocrinol ; 33(12): 928-932, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28557604

RESUMO

Endometriosis, an estrogen-dependent chronic gynecological disease in women of reproductive age, is characterized by a systemic inflammation status involving also red blood cells (RBCs). In this study, we evaluated how the protein oxidative status could be involved in the worsening of RBC conditions due to dapsone intake in endometriotic women in potential treatment for skin or infection diseases. Blood samples from two groups of volunteers, control group (CG) and endometriosis patient group (PG), were analyzed for their content of band 3 tyrosine phosphorylation (Tyr-P) and high molecular weight aggregate (HMWA) in membranes, and glutathione (GSH) content and carbonic anhydrase (CA) activity in cytosol. In endometriotic patients, RBC showed the highest level of oxidative-related alterations both in membrane and cytosol. More interestingly, the addition of dapsone hydroxylamine (DDS-NHOH) could induce further increase of both membranes and cytosol markers, with an enhancement of CA activity reaching about 66% of the total cell enzyme amount. In conclusion, in PG the systemic inflammatory status leads to the inability of counteracting adjunctive oxidative stress, with a potential involvement of CA-related pathologies, such as glaucoma. Hence, the importance of the evaluation of therapeutic approaches worsening oxidative imbalance present in PG RBC is underlined.


Assuntos
Dapsona/análogos & derivados , Endometriose/sangue , Eritrócitos/efeitos dos fármacos , Estresse Oxidativo/efeitos dos fármacos , Adulto , Anidrases Carbônicas/metabolismo , Dapsona/farmacologia , Eritrócitos/enzimologia , Feminino , Humanos , Proteínas Tirosina Fosfatases/metabolismo , Proteínas Tirosina Quinases/metabolismo , Adulto Jovem
20.
Reprod Biol Endocrinol ; 13: 28, 2015 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-25884482

RESUMO

BACKGROUND: Aim of the study was to investigate whether menstrual cycle length may be considered as a surrogate measure of reproductive health, improving the accuracy of biochemical/sonographical ovarian reserve test in estimating the reproductive chances of women referred to ART. METHODS: A retrospective-observational-study in Padua' public tertiary level Centre was conducted. A total of 455 normo-ovulatory infertile women scheduled for their first fresh non-donor IVF/ICSI treatment. The mean menstrual cycle length (MCL) during the preceding 6 months was calculated by physicians on the basis of information contained in our electronic database (first day of menstrual cycle collected every month by telephonic communication by single patients). We evaluated the relations between MCL, ovarian response to stimulation protocol, oocytes fertilization ratio, ovarian sensitivity index (OSI) and pregnancy rate in different cohorts of patients according to the class of age and the estimated ovarian reserve. RESULTS: In women younger than 35 years, MCL over 31 days may be associated with an increased risk of OHSS and with a good OSI. In women older than 35 years, and particularly than 40 years, MCL shortening may be considered as a marker of ovarian aging and may be associated with poor ovarian response, low OSI and reduced fertilization rate. When AMH serum value is lower than 1.1 ng/ml in patients older than 40 years, MCL may help Clinicians discriminate real from expected poor responders. Considering the pool of normoresponders, MCL was not correlated with pregnancy rate while a positive association was found with patients' age. CONCLUSIONS: MCL diary is more predictive than chronological age in estimating ovarian biological age and response to COH and it is more predictive than AMH in discriminating expected from real poor responders. In women older than 35 years MCL shortening may be considered as a marker of ovarian aging while chronological age remains most accurate parameter in predicting pregnancy.


Assuntos
Ciclo Menstrual/fisiologia , Reserva Ovariana , Saúde Reprodutiva , Adulto , Fatores Etários , Hormônio Antimülleriano/sangue , Feminino , Humanos , Infertilidade Feminina/diagnóstico , Pessoa de Meia-Idade , Síndrome de Hiperestimulação Ovariana/epidemiologia , Ovário/efeitos dos fármacos , Indução da Ovulação , Gravidez , Taxa de Gravidez , Técnicas de Reprodução Assistida , Estudos Retrospectivos , Fatores de Risco
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