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1.
BMC Womens Health ; 23(1): 397, 2023 07 29.
Artigo em Inglês | MEDLINE | ID: mdl-37516869

RESUMO

BACKGROUND: Endometrial scratching (ES) or injury is intentional damage to the endometrium performed to improve reproductive outcomes for infertile women desiring pregnancy. Moreover, recent systematic reviews with meta-analyses and randomized controlled trials demonstrated that ES is not effective, data on the safety are limited, and it should not be recommended in clinical practice. The aim of the current study was to assess the view and behavior towards ES among fertility specialists throughout infertility centers in Italy, and the relationship between these views and the attitudes towards the use of ES as an add-on in their commercial setting. METHODS: Online survey among infertility centers, affiliated to Italian Society of Human Reproduction (SIRU), was performed using a detailed questionnaire including 45 questions with the possibility to give "closed" multi-choice answers for 41 items and "open" answers for 4 items. Online data from the websites of the infertility centers resulting in affiliation with the specialists were also recorded and analyzed. The quality of information about ES given on infertility centers websites was assessed using a scoring matrix including 10 specific questions (scored from 0 to 2 points), and the possible scores ranged from 0 to 13 points ('excellent' if the score was 9 points or more, 'moderate' if the score was between 5 and 8, and 'poor' if it was 4 points or less). RESULTS: The response rate was of 60.6% (43 questionnaires / 71 infertility SIRU-affiliated centers). All included questionnaires were completed in their entirety. Most physicians (~ 70%) reported to offer ES to less than 10% of their patients. The procedure is mainly performed in the secretory phase (69.2%) using pipelle (61.5%), and usually in medical ambulatory (56.4%) before IVF cycles to improve implantation (71.8%) without drugs administration (e.g., pain drugs, antibiotics, anti-hemorrhagics, or others) before (76.8%) or after (64.1%) the procedure. Only a little proportion of infertility centers included in the analysis proposes formally the ES as an add-on procedure (9.3%), even if, when proposed, the full description of the indications, efficacy, safety, and costs is never addressed. However, the overall information quality of the websites was generally "poor" ranging from 3 to 8 and having a low total score (4.7 ± 1.6; mean ± standard deviation). CONCLUSIONS: In Italy, ES is a procedure still performed among fertility specialists for improving the implantation rate in IVF patients. Moreover, they have a poor attitude in proposing ES as an add-on in the commercial setting.


Assuntos
Infertilidade Feminina , Feminino , Gravidez , Humanos , Infertilidade Feminina/terapia , Fertilidade , Itália , Endométrio , Atitude
2.
Hum Reprod ; 38(1): 103-112, 2023 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-36367827

RESUMO

STUDY QUESTION: Does LH addition to FSH in vitro recover the human primary granulosa lutein cell (hGLC) sub/poor-response? SUMMARY ANSWER: A picomolar concentration of LH may recover the FSH-induced cAMP and progesterone production of hGLC from sub/poor-responder women. WHAT IS KNOWN ALREADY: Clinical studies suggested that FSH and LH co-treatment may be beneficial for the ovarian response of sub/poor-responders undergoing ovarian stimulation during ART. STUDY DESIGN, SIZE, DURATION: hGLC samples from 286 anonymous women undergoing oocyte retrieval for ART were collected from October 2017 to February 2021. PARTICIPANTS/MATERIALS, SETTING, METHODS: hGLCs from women undergoing ovarian stimulation during ART were blindly purified, cultured, genotyped and treated in vitro by increasing concentrations of FSH (nM) ±0.5 nM LH. cAMP and progesterone levels produced after 3 and 24 h, respectively, were measured. In vitro data were stratified a posteriori, according to the donors' ovarian response, into normo-, sub- and poor-responder groups and statistically compared. The effects of LH addition to FSH were compared with those obtained by FSH alone in all the groups as well. MAIN RESULTS AND THE ROLE OF CHANCE: hGLCs from normo-responders were shown to have higher sensitivity to FSH treatment than sub-/poor-responders in vitro. Equimolar FSH concentrations induced higher cAMP (about 2.5- to 4.2-fold), and progesterone plateau levels (1.2- to 2.1-fold), in cells from normo-responder women than those from sub-/poor-responders (ANOVA; P < 0.05). The addition of LH to the cell treatment significantly increased overall FSH efficacy, indicated by cAMP and progesterone levels, within all groups (P > 0.05). Interestingly, these in vitro endpoints, collected from the normo-responder group treated with FSH alone, were similar to those obtained in the sub-/poor-responder group under FSH + LH treatment. No different allele frequencies and FSH receptor (FSHR) gene expression levels between groups were found, excluding genetics of gonadotropin and their receptors as a factor linked to the normo-, sub- and poor-response. In conclusion, FSH elicits phenotype-specific ovarian lutein cell response. Most importantly, LH addition may fill the gap between cAMP and steroid production patterns between normo- and sub/poor-responders. LIMITATIONS, REASONS FOR CAUTION: Although the number of experimental replicates is overall high for an in vitro study, clinical trials are required to demonstrate if the endpoints evaluated herein reflect parameters of successful ART. hGLC retrieved after ovarian stimulation may not fully reproduce the response to hormones of granulosa cells from the antral follicular stage. WIDER IMPLICATIONS OF THE FINDINGS: This in vitro assay may describe the individual response to personalize ART stimulation protocol, according to the normo-, sub- and poor-responder status. Moreover, this in vitro study supports the need to conduct optimally designed, randomized clinical trials exploring the personalized use of LH in assisted reproduction. STUDY FUNDING/COMPETING INTEREST(S): This study was supported by Merck KGaA. M.L. and C.C. are employees of Merck KGaA or of the affiliate Merck Serono SpA. Other authors have no competing interests to declare. TRIAL REGISTRATION NUMBER: N/A.


Assuntos
Hormônio Foliculoestimulante , Células Lúteas , Humanos , Feminino , Hormônio Foliculoestimulante/uso terapêutico , Células Lúteas/metabolismo , Progesterona , Gonadotropinas , Reprodução , Indução da Ovulação/métodos , Fertilização in vitro/métodos
4.
Oncotarget ; 9(39): 25517-25528, 2018 May 22.
Artigo em Inglês | MEDLINE | ID: mdl-29876005

RESUMO

Histological classification and staging are the gold standard for the prognosis of endometrial cancer (EC). However, in morphologically intermediate and doubtful cases this approach results largely insufficient, defining the need for better classification criteria. In this work we developed an algorithm that based on EC genetic alterations and in combination with the current histological classification, improves EC patients prognostic stratification, in particular in doubtful cases. A panel of 26 cancer related genes was analyzed in 89 EC patients and somatic functional mutations were investigated in association with different histology and outcome. An unsupervised hierarchical clustering analysis revealed that two groups of patients with different tumor grade and different prognosis can be distinguished by mutational profile. In particular, the mutational status of APC, CTNNB1, PIK3CA, PTEN, SMAD4 and TP53 resulted to be principal drivers of prognostic clustering. Consistently, a decisional tree generated by a data mining approach summarizes the consequential molecular criteria for patients prognostic stratification. The model proposed by this work provides the clinician with a tool able to support the prognosis of EC patients and consequently drives the choice of the most appropriated therapeutic strategy and follow up.

5.
BMC Cancer ; 18(1): 134, 2018 02 05.
Artigo em Inglês | MEDLINE | ID: mdl-29402239

RESUMO

BACKGROUND: Extra-uterine mullerian adenosarcomas have varying biological behaviours depending on the presence of endometriosis or sarcomatous overgrowth. These behaviours manifest according to the tumours' histological characteristics and sites of origin. The best treatment and oncologic outcome have not been clarified because only a few cases of extra-uterine and extra-ovarian adenosarcoma have been described in the literature. Here, we report a case of primary peritoneal adenosarcoma with sarcomatous overgrowth and review all reported cases of adenosarcomas arising outside of the uterus and outside the ovaries to identify the best treatment options and clarify outcomes. CASE PRESENTATION: A 79-year-old woman was referred to our Department with an abdominal mass resembling a fibroid with a haemorrhage. Her gynaecological history was negative. A transvaginal and transabdominal ultrasound examination revealed a multicystic mass resembling an ovarian tumour arising from the pelvis and extending up to the abdomen. At laparotomy a peritoneal mass arising from Douglas peritoneum was resected. The uterus and adnexa appeared normal, and a supra-cervical hysterectomy with bilateral salpingo-oophorectomy was performed. No macroscopic residual disease was present. Final pathology diagnosed a malignant peripheral nerve sheath tumors with divergent differentiation. Four weeks later a new, multicystic mass was found. Due to the progressive poor condition, the patient died four months after diagnosis. Histological slides were reviewed by external expert pathologists and the final diagnosis was of extra-genital adenosarcoma with sarcomatous overgrowth. Furthermore, we also collected and analysed articles written in English regarding extra-uterine and extra-ovarian adenosarcomas published between January 1974 and October 2016. PubMed was used as a database for this search. Clinical and pathological characteristics, treatments and outcomes were assessed. CONCLUSIONS: Only 41 cases has been reported in literature. Previous endometriosis and sarcomatous overgrowth showed an inverse effect on prognosis. Endometriosis was confirmed to have a positive effect on disease free survival Complete surgical resection is the mainstay of treatment. A worldwide registry is urgently required to collect data to standardize treatment and to obtain reliable data on prognosis.


Assuntos
Adenossarcoma/diagnóstico , Tumor Mulleriano Misto/diagnóstico , Neoplasias Ovarianas/diagnóstico , Neoplasias Uterinas/diagnóstico , Adenossarcoma/cirurgia , Idoso , Feminino , Humanos , Leiomioma/diagnóstico , Leiomioma/cirurgia , Tumor Mulleriano Misto/cirurgia , Neoplasias Ovarianas/cirurgia , Neoplasias Uterinas/cirurgia
6.
J Tissue Eng Regen Med ; 12(2): e774-e785, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-27943583

RESUMO

Peripheral nerve injuries are a commonly encountered clinical problem and often result in long-term functional defects. The application of stem cells able to differentiate in Schwann cell-like cells in vitro and in vivo, could represent an attractive therapeutic approach for the treatment of nerve injuries. Further, stem cells sources sharing the same embryological origin as Schwann cells might be considered a suitable tool. The aim of this study was to demonstrate the ability of a neuroectodermal subpopulation of human STRO-1+ /c-Kit+ /CD34+ DPSCs, expressing P75NTR , nestin and SOX-10, to differentiate into Schwann cell-like cells in vitro and to promote axonal regeneration in vivo, which led to functional recovery as measured by sustained gait improvement, in animal rat model of peripheral nerve injury. Transplanted human dental pulp stem cells (hDPSCs) engrafted into sciatic nerve defect, as revealed by the positive staining against human nuclei, showed the expression of typical Schwann cells markers, S100b and, noteworthy, a significant number of myelinated axons was detected. Moreover, hDPSCs promoted axonal regeneration from proximal to distal stumps 1 month after transplantation. This study demonstrates that STRO-1+ /c-Kit+ /CD34+ hDPSCs, associated with neural crest derivation, represent a promising source of stem cells for the treatment of demyelinating disorders and might provide a valid alternative tool for future clinical applications to achieve functional recovery after injury or peripheral neuropathies besides minimizing ethical issues. Copyright © 2016 John Wiley & Sons, Ltd.


Assuntos
Antígenos CD34/metabolismo , Biomarcadores/metabolismo , Polpa Dentária/citologia , Regeneração Nervosa , Nervos Periféricos/fisiologia , Proteínas Proto-Oncogênicas c-kit/metabolismo , Células-Tronco/metabolismo , Adulto , Animais , Diferenciação Celular , Microambiente Celular , Humanos , Células-Tronco Multipotentes/citologia , Bainha de Mielina/metabolismo , Fatores de Crescimento Neural/metabolismo , Crista Neural/metabolismo , Fenótipo , Ratos Sprague-Dawley , Recuperação de Função Fisiológica , Nervo Isquiático/patologia , Nervo Isquiático/fisiopatologia , Nervo Isquiático/cirurgia , Adulto Jovem
7.
Mol Hum Reprod ; 23(10): 685-697, 2017 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-29044421

RESUMO

STUDY QUESTION: Are four urinary hCG/menotropin (hMG) and one recombinant preparation characterized by different molecular features and do they mediate specific intracellular signaling and steroidogenesis? SUMMARY ANSWER: hCG and hMG preparations have heterogeneous compositions and mediate preparation-specific cell signaling and early steroidogenesis, although similar progesterone plateau levels are achieved in 24 h-treated human primary granulosa cells in vitro. WHAT IS KNOWN ALREADY: hCG is the pregnancy hormone marketed as a drug for ARTs to induce final oocyte maturation and ovulation, and to support FSH action. Several hCG formulations are commercially available, differing in source, purification methods and biochemical composition. STUDY DESIGN, SIZE, DURATION: Commercial hCG preparations for ART or research purposes were compared in vitro. PARTICIPANTS/MATERIALS, SETTING, METHODS: The different preparations were quantified by immunoassay with calibration against the hCG standard (Fifth IS; NIBSC 07/364). Immunoreactivity patterns, isoelectric points and oligosaccharide contents of hCGs were evaluated using reducing and non-reducing Western blotting, capillary isoelectric-focusing immunoassay and lectin-ELISA, respectively. Functional studies were performed in order to evaluate intracellular and total cAMP, progesterone production and ß-arrestin 2 recruitment by ELISA and BRET, in both human primary granulosa lutein cells (hGLC) and luteinizing hormone (LH)/hCG receptor (LHCGR)-transfected HEK293 cells, stimulated by increasing hormone concentrations. Statistical analysis was performed using two-way ANOVA and Bonferroni post-test or Mann-Whitney's U-test as appropriate. MAIN RESULTS AND THE ROLE OF CHANCE: Heterogeneous profiles were found among preparations, revealing specific molecular weight patterns (20-75 KDa range), isoelectric points (4.0-9.0 pI range) and lectin binding (P < 0.05; n = 7-10). These drug-specific compositions were linked to different potencies on cAMP production (EC50 1.0-400.0 ng/ml range) and ß-arrestin 2 recruitment (EC50 0.03-2.0 µg/ml) in hGLC and transfected HEK293 cells (P < 0.05; n = 3-5). In hGLC, these differences were reflected by preparation-specific 8-h progesterone production although similar plateau levels of progesterone were acheived by 24-h treatment (P ≥ 0.05; n = 3). LARGE SCALE DATA: N/A. LIMITATIONS, REASONS FOR CAUTION: The biological activity of commercial hCG/hMG preparations is provided in International Units (IU) by in-vivo bioassay and calibration against an International Standard, although it is an unsuitable unit of measure for in-vitro studies. The re-calibration against recombinant hCG,quantified in grams, is based on the assumption that all of the isoforms and glycosylation variants have similar immunoreactivity. WIDER IMPLICATIONS OF THE FINDINGS: hCG/hMG preparation-specific cell responses in vitro may be proposed to ART patients affected by peculiar ovarian response, such as that caused by polycystic ovary syndrome. Otherwise, all the preparations available for ART may provide a similar clinical outcome in healthy women. STUDY FUNDING AND COMPETING INTEREST(S): This study was supported by a grant of the Italian Ministry of Education, University and Research (PRIN 2015XCR88M). The authors have no conflict of interest.


Assuntos
Gonadotropina Coriônica/química , Fármacos para a Fertilidade Feminina/química , Células da Granulosa/efeitos dos fármacos , Menotropinas/química , Progesterona/biossíntese , Transdução de Sinais/efeitos dos fármacos , Adulto , Gonadotropina Coriônica/farmacologia , AMP Cíclico/biossíntese , Feminino , Fármacos para a Fertilidade Feminina/farmacologia , Hormônio Foliculoestimulante/genética , Hormônio Foliculoestimulante/metabolismo , Regulação da Expressão Gênica , Células da Granulosa/citologia , Células da Granulosa/metabolismo , Células HEK293 , Humanos , Ponto Isoelétrico , Fase Luteal/fisiologia , Menotropinas/farmacologia , Peso Molecular , Indução da Ovulação/métodos , Gravidez , Cultura Primária de Células , Receptores do LH/genética , Receptores do LH/metabolismo , Transfecção , beta-Arrestina 2/genética , beta-Arrestina 2/metabolismo
8.
J Cancer ; 8(14): 2828-2835, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28928872

RESUMO

Objectives: The ABO blood group antigens were found on most epithelial cells and in secretions. In the normal endometrium there is a variable expression of histo-blood group and related antigens suggesting a hormonal regulation. A relationship between ABO blood groups and endometrial cancer has been investigated with contradictory results. In this study we investigated the influence of blood types on clinical and pathological characteristics of endometrial cancer patients. Method: Retrospective cohort study. Clinical and pathological data were extrapolated and their association with blood groups were assessed. Results: A total of 203 type I endometrial cancer patients were included in the final analysis. Univariate analysis indicated that a lower frequency of G3 undifferentiated tumors was observed in patients with A blood group (P=0.027). Multivariate analysis, including also clinical features such as Age, BMI, parity, hypertension and diabetes confirmed that patients with A group present a lower risk of G3 tumors in comparison with not A patients. (OR=0.32, P=0.011). Conclusions: Patients with A genotype have a lower risk to develop G3 type I endometrial cancer. ABO blood group might represent a useful, easy access and cheap biomarker for patients' selection and for management personalization of endometrial cancer patients.

9.
Int J Mol Sci ; 18(5)2017 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-28452938

RESUMO

Luteinizing hormone (LH) and human chorionic gonadotropin (hCG) are glycoprotein hormones used for assisted reproduction acting on the same receptor (LHCGR) and mediating different intracellular signaling. We evaluated the pro- and anti-apoptotic effect of 100 pM LH or hCG, in the presence or in the absence of 200 pg/mL 17ß-estradiol, in long-term, serum-starved human primary granulosa cells (hGLC) and a transfected granulosa cell line overexpressing LHCGR (hGL5/LHCGR). To this purpose, phospho-extracellular-regulated kinase 1/2 (pERK1/2), protein kinase B (pAKT), cAMP-responsive element binding protein (pCREB) activation and procaspase 3 cleavage were evaluated over three days by Western blotting, along with the expression of target genes by real-time PCR and cell viability by colorimetric assay. We found that LH induced predominant pERK1/2 and pAKT activation STARD1, CCND2 and anti-apoptotic XIAP gene expression, while hCG mediated more potent CREB phosphorylation, expression of CYP19A1 and procaspase 3 cleavage than LH. Cell treatment by LH is accompanied by increased (serum-starved) cell viability, while hCG decreased the number of viable cells. The hCG-specific, pro-apoptotic effect was blocked by a physiological dose of 17ß-estradiol, resulting in pAKT activation, lack of procaspase 3 cleavage and increased cell viability. These results confirm that relatively high levels of steroidogenic pathway activation are linked to pro-apoptotic signals in vitro, which may be counteracted by other factors, i.e., estrogens.


Assuntos
Gonadotropina Coriônica/farmacologia , Estradiol/farmacologia , Hormônio Luteinizante/farmacologia , Transdução de Sinais/efeitos dos fármacos , Aromatase/metabolismo , Proteína de Ligação a CREB/metabolismo , Caspase 3/genética , Caspase 3/metabolismo , Sobrevivência Celular/efeitos dos fármacos , Células Cultivadas , Feminino , Expressão Gênica/efeitos dos fármacos , Células da Granulosa/citologia , Células da Granulosa/efeitos dos fármacos , Células da Granulosa/metabolismo , Humanos , Proteína Quinase 1 Ativada por Mitógeno/metabolismo , Proteína Quinase 3 Ativada por Mitógeno/metabolismo , Fosforilação/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-akt/metabolismo , Proteína Supressora de Tumor p53/genética , Proteína Supressora de Tumor p53/metabolismo
10.
Medicine (Baltimore) ; 96(48): e8974, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29310405

RESUMO

RATIONALE: Inflammatory myofibroblastic tumor (IMT) is a rare mesenchymal neoplasm composed of spindled to epithelioid cells with prominent myxoid stroma and inflammatory infiltrate. It has a low but definite malignant potential. However, its management has never been standardized. PATIENT CONCERNS AND DIAGNOSIS: We present the first case of uterine IMT laparoscopically treated. Moreover, we reviewed the English literature regarding uterine IMT published between 1987 and June 2017. A total of 72 cases of uterine IMT were included. Clinical and pathological characteristics, treatments and outcomes were recorded. INTERVENTIONS AND OUTCOMES: A total laparoscopic hysterectomy with opportunistic bilateral salpingectomy was performed. Patient is free of disease at 6 months of follow-up. LESSONS: Uterine IMT may be identified by anaplastic lymphoma kinase overexpression, its prognosis is usually good, complete excision seems to be effective to avoid relapse and mini invasive surgery seems to be effective and safe to treat uterine IMT. However, considering the age of women affected by disease, conservative management, or medical therapy could be taken in account to avoid surgical injuries and to preserve fertility.


Assuntos
Neoplasias de Tecido Muscular/terapia , Neoplasias Uterinas/terapia , Adulto , Feminino , Humanos , Laparoscopia , Neoplasias de Tecido Muscular/diagnóstico , Neoplasias de Tecido Muscular/epidemiologia , Neoplasias de Tecido Muscular/patologia , Neoplasias Uterinas/diagnóstico , Neoplasias Uterinas/epidemiologia , Neoplasias Uterinas/patologia
11.
Trends Endocrinol Metab ; 28(3): 186-198, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-27988256

RESUMO

Polycystic ovary syndrome (PCOS) is the most common endocrine disorder in women of reproductive age and affects fertility and pregnancy in cases of oligoanovulation. Ovulation induction is often used to treat anovulatory patients with PCOS, but many of these women fail to conceive and resort to assisted reproductive technologies. Alterations in oocyte competence (OC) are considered potential causative factors for subfertility in women with PCOS. In this review we present and critically assess all recent clinical and experimental data regarding OC in women with PCOS. Our analysis demonstrates that the contribution of OC to reproductive potential in women with PCOS varies and largely depends on the PCOS phenotype and comorbidities associated with PCOS.


Assuntos
Oócitos/citologia , Síndrome do Ovário Policístico/fisiopatologia , Feminino , Humanos , Infertilidade Feminina/fisiopatologia , Oócitos/fisiologia , Indução da Ovulação , Síndrome do Ovário Policístico/patologia , Gravidez
13.
Reprod Biomed Online ; 33(5): 612-628, 2016 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-27591135

RESUMO

In the literature, there is growing evidence that assisted reproductive techniques increase the risk of pregnancy complications in subfertile couples. Moreover, many concomitant preconception risk factors for subfertility are frequently present in the same subject and increase the risk of pregnancy complications. This review aimed to summarize in a systematic fashion the best current evidence regarding the effects of preconception maternal factors on maternal and neonatal outcomes. A literature search up to March 2016 was performed in IBSS, SocINDEX, Institute for Scientific Information, PubMed, Web of Science and Google Scholar. An evidence-based hierarchy was used to determine which articles to include and analyse. Available data show that the risk of pregnancy complications in spontaneous and assisted conceptions is likely multifactorial, and the magnitude of this risk is probably very different according specific subgroups of patients. Notwithstanding the only moderate level and quality of the available evidence, available data suggest that the presence and the treatment of specific preconception cofactors of subfertility should be always taken into account both in clinical practice and for scientific purposes.


Assuntos
Complicações na Gravidez/epidemiologia , Técnicas de Reprodução Assistida/efeitos adversos , Índice de Massa Corporal , Feminino , Humanos , Infertilidade/terapia , Idade Materna , Síndrome do Ovário Policístico/complicações , Gravidez , Taxa de Gravidez , Fatores de Risco , Doenças Uterinas/complicações
18.
J Minim Invasive Gynecol ; 23(2): 206-14, 2016 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-26454195

RESUMO

STUDY OBJECTIVE: To assess the impact of the Food and Drug Administration (FDA) warning about power morcellation use on the daily clinical practice of Italian gynecologists. DESIGN: Electronic survey mailed to the main gynecologic centers (Canadian Task Force Classification type III). SETTING: Unit of Obstetrics and Gynecology, IRCCS - Arcispedale S. Maria Nuova di Reggio Emilia (Italy). PATIENTS: The study did not include patient data. INTERVENTION: There was no intervention. MEASUREMENTS AND MAIN RESULTS: From 490 surveys sent out, 426 replies were included in the final analysis (return rate = 86.9%). Four hundred of the 426 (93.9%) gynecologists were aware of the FDA warning. One hundred fifty of 302 (49.7%) of experienced gynecologists and 176 of 349 (50.4%) of oncology gynecologists considered laparoscopy the best approach for myomectomy. The FDA communication was considered overly restrictive by experienced and oncology gynecologists who declared that they had no intention of changing their surgical approach. Two hundred fifty of the 426 (58.7%) gynecologists declared that they would change their surgical approach only to prevent legal litigation. CONCLUSION: The FDA warning also affected Italian gynecologists. Particularly, less experienced gynecologists and those without oncologic practice seem to be more interested in avoiding legal litigation rather than a real clinical risk of upstaging an unexpected leiomyosarcoma. Fear of undiagnosed sarcoma could increase the number of laparotomies.


Assuntos
Competência Clínica/legislação & jurisprudência , Histerectomia/efeitos adversos , Leiomioma/cirurgia , Padrões de Prática Médica/legislação & jurisprudência , United States Food and Drug Administration , Miomectomia Uterina/efeitos adversos , Neoplasias Uterinas/prevenção & controle , Feminino , Ginecologia/legislação & jurisprudência , Pesquisas sobre Atenção à Saúde , Humanos , Histerectomia/legislação & jurisprudência , Itália/epidemiologia , Laparotomia , Leiomioma/patologia , Leiomiossarcoma/cirurgia , Inoculação de Neoplasia , Guias de Prática Clínica como Assunto , Estados Unidos , United States Food and Drug Administration/legislação & jurisprudência , Miomectomia Uterina/legislação & jurisprudência , Neoplasias Uterinas/cirurgia
20.
Mol Cell Endocrinol ; 422: 103-114, 2016 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-26690776

RESUMO

Luteinizing hormone (LH) and choriogonadotropin (hCG) are glycoprotein hormones regulating ovarian function and pregnancy, respectively. Since these molecules act on the same receptor (LHCGR), they were traditionally assumed as equivalent in assisted reproduction techniques (ART), although differences between LH and hCG were demonstrated at molecular and physiological level. In this study, we demonstrated for the first time that co-treatment with a follicle-stimulating hormone (FSH) dose in the ART therapeutic range potentiates different LH- and hCG-dependent responses in vitro, measured in terms of cAMP, phospho-CREB, -ERK1/2 and -AKT activation, gene expression, progesterone and estradiol production in human granulosa-lutein cells (hGLC). We show that in the presence of FSH, hCG biopotency is about 5-fold increased, in the presence of FSH, in terms of cAMP activation. Accordingly, CREB phosphorylation and steroid production is increased under hCG and FSH co-treatment. LH effects, evaluated as steroidogenic cAMP/PKA pathway activation, do not change in the presence of FSH, which, however, increases LH-dependent ERK1/2 and AKT, but not CREB phosphorylation, resulting in anti-apoptotic effects. The different modulatory activity of FSH on LH and hCG action in vitro corresponds to their different physiological functions, reflecting proliferative effects exerted by LH during the follicular phase and before trophoblast development, and the high steroidogenic potential of hCG requested to sustain pregnancy from the luteal phase onwards.


Assuntos
Gonadotropina Coriônica/farmacologia , Hormônio Foliculoestimulante/farmacologia , Células Lúteas/efeitos dos fármacos , Hormônio Luteinizante/farmacologia , Esteroides/metabolismo , Adulto , Apoptose/efeitos dos fármacos , Células Cultivadas , AMP Cíclico/metabolismo , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/metabolismo , Sinergismo Farmacológico , Feminino , Humanos , Técnicas In Vitro , Células Lúteas/citologia , Transdução de Sinais/efeitos dos fármacos
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