RESUMO
BACKGROUND: Fertility-sparing treatments (FSTs) have played a crucial role in the management of early-stage cervical cancer (ECC); however, there is currently no standard of care for women with ECC ≥ 2 cm who wish to preserve their fertility. The current orientation of the scientific community comprises upfront surgical techniques and neoadjuvant chemotherapy (NACT) followed by minor surgery such us conization. However these approaches are not standardized. This systematic review aimed to collect the evidence in the literature regarding the obstetric outcomes of the different techniques for applying FSTs in ECC ≥ 2 cm. METHODS: A systematic review was performed in September 2022 using the Pubmed and Scopus databases, from the date of the first publication. We included all studies containing data regarding pregnancy, birth, and preterm rates. RESULTS: Fifteen studies fulfilled the inclusion criteria, and 352 patients were analyzed regarding fertility outcomes. Surgery-based FST showed the pregnancy rate (22%), birth rate (11%), and preterm rate (10%). Papers regarding FST using the NACT approach showed a pregnancy rate of 44%, with a birth rate of 45% in patients who managed to get pregnant. The preterm rate amounted to 44%, and pregnancy rates and birth rates were significantly different between the two groups (p < 0.001). CONCLUSION: Fertility preservation in patients with ECC > 2 cm is challenging. The endpoint for evaluating the best treatment should include oncological and fertility outcomes together. From this prospective, NACT followed by less radical surgery could be a reasonable compromise.
Assuntos
Preservação da Fertilidade , Neoplasias do Colo do Útero , Gravidez , Recém-Nascido , Feminino , Humanos , Mães , Neoplasias do Colo do Útero/cirurgia , Neoplasias do Colo do Útero/patologia , Estudos Prospectivos , Estadiamento de Neoplasias , Fertilidade , Preservação da Fertilidade/métodosRESUMO
PURPOSE OF INVESTIGATION: Miillerian anomalies have not been implicated as a significant risk factor for the development of cervical, uterine, and ovarian cancers; in the present literature, there are only a few reports of endometrial cancer arising in patients with Miillerian abnormalities. To the best of the authors' knowledge, this is the first reported case of endometrial cancer arising in a patient with unicornuate uterus. CASE REPORT: A 69-year-old Caucasian woman underwent clinical examination and office hysteroscopy with endometrial biopsy because of abnormal post-menopausal bleeding. The diagnosis was endometrial cancer in unicornuate uterus, hence the patient underwent total hysterectomy with pelvic lymphadenectomy. CONCLUSION: Uterine malformations and genetic disorders may cause a delayed diagnosis of gynaecological cancers. Gynaecological examination in asymptomatic patients and differential diagnosis in abnormal uterine bleeding patients should be considered.
Assuntos
Neoplasias do Endométrio/patologia , Útero/anormalidades , Idoso , Neoplasias do Endométrio/diagnóstico , Neoplasias do Endométrio/cirurgia , Feminino , Humanos , Excisão de LinfonodoRESUMO
The authors report a rare case of leiomyomatosis of the lung diagnosed in a 43-year-old woman, with uterine intravenous leiomyomatosis. Benign metastasizing leiomyoma (BML) is an extremely rare lesion characterized by usually multiple, benign-appearing smooth muscle tumors of the lung in females with coexisting uterine leiomyoma. On the basis of their histological and immunohistological features, a unified histogenetic view of leiomyomas with vascular invasion (LWVI) and BML of the uterus is proposed. LWVI and BML may be the same pathological entity and microscopic vascular invasion may represent the metastatic mechanism of BML. LWVI seems to be the precursor of BML.
Assuntos
Leiomiomatose/patologia , Neoplasias Pulmonares/secundário , Nódulos Pulmonares Múltiplos/secundário , Neoplasias Uterinas/patologia , Adulto , Feminino , Humanos , Leiomiomatose/diagnóstico por imagem , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/patologia , Nódulos Pulmonares Múltiplos/diagnóstico por imagem , Nódulos Pulmonares Múltiplos/patologia , Metástase Neoplásica , RadiografiaRESUMO
AIM: The embryo implant is the limiting step of the reproductive process about the phenomena involved in the determinism of endometrial receptivity. Some aspects of ultrasound could help us in this regard. The aim of this study was to test the relationship between three ultrasound parameters such as endometrial pattern, subendometrial vascularization, and uterine artery pulsatility index with success rates of in-vitro fertilization (IVF) and with pregnancy rates. METHODS: Twenty-four women candidates for IVF in 2009 were enrolled. A transvaginal ultrasound was performed two-four hours before the embryo transfer to assess differences in the endometrial pattern, subendometrial vascularization, and uterine artery pulsatility index with reference to the group of pregnant and non-pregnant women. RESULTS: Pregnant women most often reveal a trilaminar pattern, a subendometrial vascularization with vessels that penetrate the outer hyperechoic edge of endometrium, and a low-medium uterine artery pulsatility index compared to the group of non-pregnant patients. CONCLUSION: All three studied parameters seem to correlate in the determinism of endometrial receptivity. This leads us to conclude that a trilaminar pattern supported by a correct vascularization and by uterine artery pulsatility index of less than three are good predictors of implant. Their evaluation before subjecting the patient to the embryo transfer may help to increase the pregnancy rate.
Assuntos
Implantação do Embrião , Transferência Embrionária , Endométrio/irrigação sanguínea , Endométrio/diagnóstico por imagem , Fertilização in vitro , Ultrassonografia Doppler em Cores , Adulto , Endossonografia , Feminino , Humanos , Infertilidade Feminina , Valor Preditivo dos Testes , Gravidez , Taxa de Gravidez , Fluxo Sanguíneo Regional , Estudos Retrospectivos , Sensibilidade e Especificidade , Artéria Uterina/diagnóstico por imagem , Útero/diagnóstico por imagemRESUMO
Notch signaling is an evolutionarily conserved mechanism used by invertebrates and vertebrates to control cell fates through close-range cell interactions. Four Notch receptors have been identified in vertebrates and different ligands, divided into Delta-like and Serrate-like (Jagged). Several studies have demonstrated that Notch signaling is involved in different branches of the cell fate decision tree: differentiation, proliferation and apoptosis. These three processes are finely regulated in human placenta in order to allow a successful pregnancy and a correct fetal growth. Moreover, Notch and its ligands participate in the vascular remodelling and stabilization, other two processes much important and ticklish in human placenta. So, we decided to investigate the pattern of expression of Notch-1, Notch-4 and Jagged-1, together with two members related to Notch pathway and involved in angiogenesis: VEGF and p21, in human placenta during gestation by immunoblotting and immunohistochemistry. We showed a modulation of Notch proteins throughout the pregnancy; in particular we showed a slight decrease of Notch-1 throughout pregnancy, with a decreased cytoplasmic staining from the first to the third trimester of gestation in cytotrophoblast and syncytiotrophoblast. In contrast Jagged-1 showed an increase throughout pregnancy especially in syncytiotrophoblast and stroma during the third trimester of gestation. In addition, we found by immunoblotting an increase of VEGF expression from the first to the third trimester and an intense VEGF expression inside endothelial cells throughout the gestation as also confirmed by immunohistochemistry. We also showed a decrease of p21 expression during the pregnancy both through immunoblotting and immunohistochemistry assays. Moreover, we observed Notch localization in extravillous trophoblast cells that are able to invade the decidualized endometrium. Our results suggest an involvement of Notch signaling in regulation of placental cell fate decision and in angiogenesis that are dramatically important to maintain a normal physiology of this organ during pregnancy.
Assuntos
Proteínas de Ligação ao Cálcio/metabolismo , Peptídeos e Proteínas de Sinalização Intercelular/metabolismo , Proteínas de Membrana/metabolismo , Placenta/metabolismo , Gravidez/metabolismo , Proteínas Proto-Oncogênicas/metabolismo , Receptor Notch1/metabolismo , Receptores Notch/metabolismo , Diferenciação Celular/fisiologia , Proliferação de Células , Inibidor de Quinase Dependente de Ciclina p21/metabolismo , Desenvolvimento Embrionário/fisiologia , Feminino , Humanos , Proteína Jagged-1 , Neovascularização Fisiológica/fisiologia , Primeiro Trimestre da Gravidez/metabolismo , Terceiro Trimestre da Gravidez/metabolismo , Receptor Notch4 , Proteínas Serrate-Jagged , Transdução de Sinais/fisiologia , Trofoblastos/metabolismo , Fator A de Crescimento do Endotélio Vascular/metabolismoRESUMO
Sexual difficulties in women appear to be widespread in society; the relationship between female sexual function and obesity is unclear. This study aimed to investigate the relationship between body weight, the distribution of body fat and sexual function in women. Fifty-two, otherwise healthy women with abnormal values of female sexual function index (FSFI) score (< or =23) were compared with 66 control women (FSFI >23), matched for age and menopausal status. All women were free from diseases known to affect sexual function. FSFI strongly correlated with body mass index (BMI) (r=-0.72, P=0.0001), but not with waist-to-hip ratio (r=-0.09, P=0.48), in women with sexual dysfunction. Of the six sexual function parameters, desire and pain did not correlate with BMI, while arousal (r=-0.75), lubrication (r=-0.66), orgasm (r=-0.56) and satisfaction (r=-0.56, all P<0.001) did. FSFI score was significantly lower in overweight women as compared with normal weight women, while cholesterol and triglyceride levels were higher. On multivariate analysis, both age and BMI explained about 68% of FSFI variance, with a primacy of BMI over age (ratio 4:1). In conclusion, obesity affects several aspects of sexuality in otherwise healthy women with sexual dysfunction.
Assuntos
Peso Corporal/fisiologia , Disfunções Sexuais Fisiológicas/fisiopatologia , Sexualidade/fisiologia , Adiposidade/fisiologia , Adulto , Antropometria , Glicemia/metabolismo , Índice de Massa Corporal , Feminino , Humanos , Lipídeos/sangue , Pessoa de Meia-Idade , Obesidade/complicações , Obesidade/epidemiologia , Fatores de Risco , Disfunções Sexuais Fisiológicas/epidemiologia , FumarRESUMO
OBJECTIVE: To evaluate the effects of low-dose hormone therapy (LD-HT) on bleeding pattern and vasomotor symptoms in perimenopausal women. METHODS: In a prospective, open-label study at an University clinic, 120 perimenopausal women suffering from irregular menstrual cycles and hot flushes were randomized to micronized 17beta-estradiol 1 mg plus dydrogesterone 10 mg sequential added (LD-HT; group A: 60 subjects) or dydrogesterone 10 mg from day 15 to 28 (group B: 60 subjects). Number and severity of hot flushes and bleeding pattern were assessed throughout the study. RESULTS: Women in group A experienced a significant reduction in number of hot flushes while no significant variation was observed in group B. The incidence of cyclic bleeding was 86% in group A and 76% in group B, the mean duration was significantly lower in group A than in group B. CONCLUSIONS: LD-HT may control both irregular bleeding and hot flushes in perimenopausal women.
Assuntos
Didrogesterona/administração & dosagem , Estradiol/administração & dosagem , Terapia de Reposição Hormonal/métodos , Fogachos/tratamento farmacológico , Perimenopausa/efeitos dos fármacos , Congêneres da Progesterona/administração & dosagem , Relação Dose-Resposta a Droga , Combinação de Medicamentos , Feminino , Humanos , Menorragia/tratamento farmacológico , Pessoa de Meia-Idade , Estudos ProspectivosRESUMO
Angioleiomyoma is a benign mesenchymal neoplasm composed of smooth muscle cells and thick-walled vessels. It is usually found in the skin of the lower extremities. Angioleiomyoma is a very rare tumor among the ever-expanding repertoire of growth variants described in benign uterine leiomyoma. More rare is a solitary tumor of the broad ligament. Thus angioleiomyoma of the broad ligament is an extremely rare benign tumor of the female pelvis. In this report a 52-year-old woman with a one-year history of abdominal pain was admitted to our hospital. Gynaecological and ultrasonography exams showed a large mass with increased vascularization in the right adnexal region. The patient underwent total hysterectomy and bilateral salpingo-oophorectomy. The site of the benign mass was the left broad ligament of the uterus. On pathologic examination of the specimen, the tumor was diagnosed as angioleiomyoma. We present a case of angioleiomyoma of the broad ligament because of its extreme rarity and the large size of the tumor.
Assuntos
Doenças dos Anexos/patologia , Angiomioma/patologia , Ligamento Largo , Doenças dos Anexos/cirurgia , Angiomioma/cirurgia , Ligamento Largo/cirurgia , Feminino , Humanos , Pessoa de Meia-IdadeRESUMO
Behçet's Syndrome (BD) is a chronic, relapsing, recurrent systemic vasculitis with an unknown cause. The disease affects all organs of the body concurrently or consecutively. Its various clinical manifestations result from ubiquitous small-vessel vasculitis, which is the underlying pathology. An Italian study has reported an increased association of the extended haplotype B51-DR5-DQw3. Without a known etiology BD syndrome has no uniformly acceptable therapy. Our study addresses therapeutic alternatives for the treatment of BD, with the systemic use of interferon alpha-2a., which has antiviral. immunomodulatory, antiproliferative, and antitumoral properties. Ten patients diagnosed with BD were referred from September 2002 to September 2005 to the Department of Gynaecology, Obstetrics and Reproduction of the Second University of Naples. The International Study Group (ISG) Criteria for Behçet's Disease (27) was applied. Patients were treated with oral prednisone; sulfasalazine; clobetasol; and interferon alpha-2a. Every month all patients had a complete blood count, platelet count, and liver function test. Biopsies of genital ulcerations identified small vessel vasculitis with mononuclear cell and lynphocytic infiltrates. HLA-B27 and B5 were positive in three subjects. The pathergy test was positive in all patients. Today the therapy is still ongoing, and none of the patients in therapy with our protocol present clinical symptoms of BD or intolerance. Laboratory findings are in a normal range and none have had neurological failure. Our findings may be attributable to less severe disease in a patients, to our smaller number of patients, or to other unknown factors. Nonetheless, these findings remain to be confirmed in a larger number of patients.
Assuntos
Antivirais/administração & dosagem , Síndrome de Behçet/tratamento farmacológico , Interferon-alfa/administração & dosagem , Vasculite/tratamento farmacológico , Adulto , Antirreumáticos/uso terapêutico , Feminino , Humanos , Injeções Subcutâneas , Interferon alfa-2 , Ciclo Menstrual , Projetos Piloto , Prednisona/uso terapêutico , Proteínas Recombinantes , Sulfassalazina/uso terapêutico , Resultado do Tratamento , Vagina/patologia , Vasculite/patologia , Vulva/patologiaRESUMO
Ovarian carcinoma, part of a heterogeneous group of tumours, is the main cause of death by gynaecological neoplasms. The diagnosis, in general, is delayed. Multiorgan diffusion, the necessity of a surgical operation and strong chemotherapy, and the eventual pathology due to patient age are all factors that require a multidisciplinary approach. In fact the case, here reported, refers to a patient who came under our observation for a bilateral ovarian mass discovered casually during an abdominal ultrasound exam carried out for renal colic. Excellent cytoreduction with peritoneal cytology, total abdominal hysterectomy, bilateral salpingo-oophorectomy (Figure 2), bilateral pelvic lymphadenectomy, total omentectomy, removal of nodules from the mesentery, the colon and three nodules in the abdominal wall thickness was executed. The histological report was G3, angioinvasive bilateral ovarian endometrioid adenocarcinoma. Metastasis was found only in one left obturator lymph node out of 17 lymph nodes removed. All of the removed abdominal, mesenteric and intestinal nodules were neoplastic. It is concluded that the complexity of similar cases always requires a multidisciplinary approach as in our case, involving an oncologist, hematologist, surgeon, gynaecologist, radiologist, anaesthesiologist, and nursing staff in the management of third stage ovarian cancer patients to obtain the best treatment thus guaranteeing a higher survival rate and better quality of life.
Assuntos
Carcinoma Endometrioide/cirurgia , Neoplasias Ovarianas/cirurgia , Idoso , Carcinoma Endometrioide/diagnóstico , Carcinoma Endometrioide/secundário , Feminino , Humanos , Neoplasias Ovarianas/diagnóstico , Neoplasias Ovarianas/patologiaRESUMO
Endometrial cancer is the most widely spread gynaecologic neoplasm in industrial countries. Mode of spread includes direct extension, lymphatic and haematic diffusion. Lymphatic involvement, particularly, is a topic of wide debate due to the strong therapeutic implications associated with it. In this regard, anatomic-surgical staging is better in that it corresponds to real conditions whereas clinical-instrumental staging is still today incomplete.
Assuntos
Algoritmos , Neoplasias do Endométrio/patologia , Seleção de Pacientes , Estudos de Viabilidade , Feminino , Humanos , Estadiamento de NeoplasiasRESUMO
The recent advancement in the field of ultrasonography allows for the prenatal precocious diagnosis of an ever increasing number of congenital defects found in various areas of the foetal body. These phenotype variants (markers) and/or morphological anomalies reveal in the majority of cases of a foetus with chromosome defects. They represent ''alarm bells'' that intrigue us to uncover any average case with more tests. It is for this that many more efforts are made to identify echographical markers which allow us to select among the pregnant women those that are not at risk and to advise those that may be of the existence of a specific cytogenetic test. One of these markers is actually represented by the single umbilical artery. This anomaly is made up of the presence of only two vessels (an artery and a vein) at the level of the umbilical cord, and its lack of an artery. The clinical meaning of this pathology is not yet completely known today. Often, in fact, when isolated, it is not associated with a chromosome defect and to other foetal pathologies. When, however, it is presented as associated to other soft markers or other structural anomalies, the risk of a chromosome defect is notably higher.
Assuntos
Feto/anormalidades , Ultrassonografia Pré-Natal , Artérias Umbilicais/anormalidades , Artérias Umbilicais/diagnóstico por imagem , Anormalidades Múltiplas/epidemiologia , Feminino , Humanos , GravidezRESUMO
AIM: The aim of this study was to estimate the incidence of complications due to the prenatal invasive diagnosis performed by amniocentesis at the Department of Prenatal Diagnosis of the Second University of Naples. METHODS: A total of 1.580 patients who underwent amniocentesis from January 2001 to December 2003, were submitted to a telephone interview concerning the complications that occurred after the invasive diagnosis. RESULTS: Only 1.416 patients out of the total patients interviewed answered correctly to the questionnaire. The complications that occurred in the first 24 h from amniocentesis (early complications) included light contractions and lipothymia respectively in 8.3% and 6.7% of cases; losses of amniotic fluid took place in 1.06% while bleedings were observed in 0.85% of cases. The incidence of abortions occurred in the week following amniocentesis was 0.78%. Preterm labor occurred in only 6% of the patients submitted to amniocentesis, spontaneous labor at term in 43% and cesarean section in 51%. The Apgar index at birth was normal in 95.7% of cases. In the remaining 4.3% pathologies like hypoglycemia or respiratory distress, which promptly regressed, were observed. Early complications and the incidence of abortions were significantly and independently associated with the double needle puncture but not with maternal age or the placenta specimen obtained during amniocentesis. CONCLUSIONS: A careful observation of the technique and the protocol, as well as a careful selection of patients are necessary presuppositions in order to further decrease the occurrence of complications due to amniocentesis.
Assuntos
Amniocentese/efeitos adversos , Doenças Fetais/epidemiologia , Doenças Fetais/etiologia , Complicações na Gravidez/epidemiologia , Complicações na Gravidez/etiologia , Adulto , Feminino , Humanos , Incidência , Gravidez , Inquéritos e QuestionáriosRESUMO
Female sexual dysfunction (FSD) is a significant public health problem. We assessed the prevalence of FSD in premenopausal women with the metabolic syndrome as compared to the general female population. Compared with the control group (N = 80), women with the metabolic syndrome (N = 120) had reduced mean full Female Sexual Function Index (FSFI) score (23.2+/-5.4 vs 30.1+/-4.7, P < 0.001), reduced satisfaction rate (3.5+/-1.1 vs 4.7+/-1.2, P < 0.01), and higher circulating levels of C-reactive protein (CRP: 2.2 (0.6/4.9) vs 0.8 (0.2/2.9) mg/l, median (interquartile range), P = 0.01). There was an inverse relation between CRP levels and FSFI score (r = -0.32, P=0.02). Investigation of female sexuality is suggested for patients with the metabolic syndrome.
Assuntos
Síndrome Metabólica/complicações , Disfunções Sexuais Fisiológicas/etiologia , Adulto , Glicemia/análise , Proteína C-Reativa/análise , HDL-Colesterol/sangue , Jejum , Feminino , Humanos , Pessoa de Meia-Idade , Orgasmo , Comportamento Sexual/fisiologia , Triglicerídeos/sangueRESUMO
Apoptosis occurs during normal development and it is important for the right balance between the loss of old, non-functional cells and the formation of new cells in different organs and tissues. Apoptosis is triggered by different cell-type-specific signals which involve several pathways, such as mitochondrial and receptor-mediated pathways, resulting in caspase cascade activation. Several studies have suggested that apoptosis plays an important role in the normal development, remodelling and aging of the placenta. Moreover, it has been demonstrated that apoptosis increases as pregnancy progresses suggesting that it is a normal physiological phenomenon throughout gestation. In the last years, it has been hypothesized that the process known as syncytial fusion is directly or indirectly related to apoptotic events. In particular, it has been suggested that cytotrophoblast cells early express most important apoptotic proteins that translocate in the syncytiotrophoblast with the fusion. This suggests that apoptosis has a central role in the villous trophoblast turnover. Recently, another important involvement of apoptotic processes in human placenta has been demonstrated. In particular, the apoptosis, mainly through Fas-FasL or TRAIL-R-TRAIL signalling, may be a defence mechanism against rejection of the fetal allograft by maternal immune system. The whole data suggest that regulation of apoptotic events is important to allow a correct development, differentiation and function of the placenta throughout pregnancy and that an unbalance of this process leads to severe pathologies such as pre-eclampsia and intrauterine growth retardation. Therefore, due to its extensive proliferation and invasive properties, the placenta mimics a malignant tumor and represents an interesting model to evaluate those processes leading to carcinogenesis.
Assuntos
Apoptose , Regulação da Expressão Gênica , Placenta/citologia , Placenta/metabolismo , Proteínas da Gravidez/metabolismo , Gravidez/metabolismo , Animais , Apoptose/imunologia , Feminino , Humanos , Placenta/imunologiaRESUMO
Allopregnanolone, a circulating neuroactive steroid hormone, is involved in the modulation of behavioral functions, stress, and the neuroendocrine axis. The aim of this study was to evaluate serum allopregnanolone concentrations in girls with central precocious puberty (n = 12), girls with normal pubertal development at the same pubertal stage (n = 17), and prepubertal girls (age-matched; n = 16). Gonadotropin and steroid hormones (allopregnanolone, cortisol, dehydroepiandrosterone sulfate, and E2) were assessed in all patients. GnRH and ACTH stimulation tests were performed in all girls with central precocious puberty and in some pubertal controls. Basal allopregnanolone levels in girls with central precocious puberty were significantly higher than in normal controls (P < 0.01). Allopregnanolone levels increased significantly after GnRH and ACTH stimulation tests (P < 0.05) both in girls with central precocious puberty and in those with normal pubertal development. There was no difference found between the peak values. In conclusion, our study shows that allopregnanolone is hypersecreted in central precocious puberty, confirming a pubertal stage-related increase in its levels during normal pubertal development. The increase in serum allopregnanolone after GnRH and ACTH stimulation tests demonstrates that both adrenal cortex and gonads are sources of this neuroactive steroid.
Assuntos
Pregnanolona/sangue , Puberdade Precoce/sangue , Hormônio Adrenocorticotrópico , Criança , Feminino , Hormônio Liberador de Gonadotropina , Humanos , Concentração Osmolar , Puberdade/sangue , Valores de ReferênciaRESUMO
A substantial proportion of GH circulates bound to high affinity GH-binding protein (GHBP), which corresponds to the extracellular domain of the GH receptor. Current evidence indicates that nutritional status has an important role in regulating plasma GHBP levels in humans. In the present study the relationship among plasma GHBP levels, body composition [by bioelectrical impedance analysis (BIA) and dual energy x-ray absorptiometry (DEXA)] and serum estradiol (E(2)) was evaluated in premenopausal (n = 92) and postmenopausal (n = 118) healthy women with different body weight [three groups according to body mass index (BMI): normal, 18.5-24.99; overweight, 25-29.99; obese, 30-39.99 kg/m(2)]. Plasma GHBP levels were measured by high pressure liquid chromatography gel filtration. GH and insulin-like growth factor I levels were determined by immunoradiometric assay and RIA, respectively. GHBP levels were significantly higher in premenopausal women with BMI above 25 kg/m(2) (overweight, 3.789 +/- 0.306 nmol/L; obese, 4.372 +/- 0.431 nmol/L) than those observed in postmenopausal women (overweight, 1.425 +/- 0.09 nmol/L; obese, 1.506 +/- 0.177 nmol/L). No significant differences were found between normal weight premenopausal (1.741 +/- 0.104 nmol/L) and postmenopausal (1.524 +/- 0.202 nmol/L) women. In premenopausal women GHBP levels correlated positively with BMI (r = 0.675; P < 0.001), fat mass (FM; r = 0.782; P < 0.001; by BIA; r = 0.776; P < 0.001; by DEXA), truncal fat (TF; r = 0.682; P < 0.001), waist to hip circumference ratio (WHR; r = 0.551; P < 0.001), and E(2) (r = 0.298; P < 0.05), whereas no significant correlation was found in postmenopausal women between GHBP levels and BMI, FM, TF, WHR, or E(2). In normal weight pre- and postmenopausal women GHBP levels did not change between the ages of 20 and 69 yr. No statistically significant correlation was found between GHBP and age for all groups studied. Moreover, in two distinct subgroups of pre- and postmenopausal women, aged 40-49 yr, the direct relationship between GHBP levels and all indexes of adiposity were only observed in premenopausal women [BMI: r = 0.836; P < 0.001; FM: r = 0.745 (BIA) and r = 0.832 (DEXA); P < 0.001; TF: r = 0.782; P < 0.001; WHR: r = 0.551; P < 0.05], but not in postmenopausal women. In conclusion, the present data indicate a strong direct correlation between GHBP and body fat in premenopausal, but not in postmenopausal women, whereas they failed to detect a relationship between GHBP and age. Therefore, these results suggest that endogenous estrogen status may be an important determinant of the changes in GHBP levels in women with different body weights.
Assuntos
Peso Corporal , Proteínas de Transporte/sangue , Estrogênios/sangue , Pós-Menopausa/sangue , Pré-Menopausa/sangue , Adulto , Idoso , Índice de Massa Corporal , Feminino , Humanos , Fator de Crescimento Insulin-Like I/análise , Pessoa de Meia-IdadeRESUMO
There is an evident decline of female fertility with age. This decline is mainly due to increased risk of pregnancy termination either after conception or after embryo implantation. Very likely the major cause of this embryo and pregnancy loss is chromosomal aneuploidies caused mostly by increasing rates of 'poor quality' oocytes. This phenomenon can be explained either by an age dependent accumulation of damage and/or by the hypothesis that the defective oocytes are there in the ovaries from the fetal life. 'Good quality' oocytes are ovulated first, leaving 'poor quality' oocytes to be ovulated later in life. Besides the quality of the oocytes which is mainly responsible of the embryo quality (we have not to forget a paternal effect) the process of implantation is dependent upon two variables: the probability of a viable embryo and that of a receptive uterine environment. From the oocyte donation model it seems that the endometrium also plays a minor role in human reproductive ageing as it does in some laboratory animals. However, besides some macroscopic possible causes which may play a role in the reduction of the age-related endometrial receptivity, there are so many endometrial factors possibly related to its receptivity which need to be further studied especially in older women.
Assuntos
Envelhecimento/fisiologia , Implantação do Embrião/fisiologia , Hormônio Foliculoestimulante/fisiologia , Idade Materna , Ovário/fisiologia , Gravidez de Alto Risco , Adulto , Envelhecimento/sangue , Feminino , Hormônio Foliculoestimulante/sangue , Humanos , GravidezAssuntos
Amidoidrolases/metabolismo , Ácidos Araquidônicos/metabolismo , Vilosidades Coriônicas/metabolismo , Trabalho de Parto/sangue , Alcamidas Poli-Insaturadas/metabolismo , Receptor CB1 de Canabinoide/metabolismo , Adulto , Western Blotting , Vilosidades Coriônicas/anatomia & histologia , Endocanabinoides , Feminino , Humanos , Imuno-Histoquímica , Gravidez , Terceiro Trimestre da Gravidez , Adulto JovemRESUMO
Inhibin-related proteins are involved in the control of the feto-maternal communication required to maintain pregnancy. Human placenta, decidua, and fetal membranes are the major sites of production and secretion of activin A, inhibin A and inhibin B in maternal serum, amniotic fluid, and cord blood. The availability of suitable assays developed in the last years has enabled the measurement of inhibins and activin A in their dimeric forms, in order to investigate their role in physiological conditions of pregnancy. The studies conducted on inhibin-related proteins and human pregnancy suggested the possibility of an involvement of inhibin A and activin A in the pathogenesis of gestational diseases. In fact, several lines of evidence underline the potential role and the clinical usefulness of inhibin-related proteins measurement in the diagnosis, prevention, prognosis and follow-up of different gestational pathologies such as early pregnancy viability, Down's syndrome, fetal demise, pre-eclampsia, pregnancy-induced hypertension, preterm delivery and intrauterine growth restriction. The measurement of inhibin A and activin A into the biological fluids of pregnancy will offer in the future, further possibilities in the early diagnosis, prediction, and monitoring diseases of pregnancy.