RESUMO
OBJECTIVES: Several studies indicated leukocyte telomere length (LTL) as a biomarker of multiple sclerosis (MS) evolution. This study aimed to investigate LTL in women with multiple sclerosis (MS) compared to that in healthy women (HW) across different reproductive phases, and to evaluate its relationship with MS activity. METHODS: Blood samples were collected from women with MS and HW during the fertile phase, pregnancy, and puerperium. LTL was determined using quantitative fluorescence in situ hybridization (Q-FISH). RESULTS: Blood samples from 68 women with MS (22 during fertile life, 23 during pregnancy, and 23 post-partum) and 52 HW (23 during fertile life, 20 during pregnancy, and 9 post-partum) were analyzed. During pregnancy, LTL in MS women and HW was 84.7 ± 10.5 and 77.6 ± 11.5, respectively (p < 0.005). Regression analysis showed that shorter LTL was associated with pregnancy in HW (p = 0.021); this relationship was not observed in MS women, for whom shorter LTL was related to a higher EDSS (p = 0.036). A longitudinal analysis was performed in eight MS women, showing LTL shortening from pregnancy to puerperium (p = 0.003), which was related to MS reactivation (p = 0.042). CONCLUSION: Our results highlight the possible associations between LTL, reproductive biological phases, and MS activity after delivery.
Assuntos
Esclerose Múltipla , Gravidez , Feminino , Humanos , Esclerose Múltipla/genética , Hibridização in Situ Fluorescente , Período Pós-Parto , Leucócitos , TelômeroRESUMO
PURPOSE: To evaluate obstetric outcome in women with endometriosis who conceive naturally and receive standard obstetric care in Italy. METHODS: Cases were consecutive women with endometriosis managed in eleven Italian referral centers. Controls were women in whom endometriosis was excluded. All women filled in a questionnaire addressing previous natural pregnancies. Marginal logistic regression models were fitted to evaluate the impact of endometriosis on obstetric outcome. A post hoc analysis was performed within the endometriosis group comparing women with severe adenomyosis versus women with absent or mild adenomyosis. RESULTS: Three hundred and fifty-five pregnancies in endometriosis group and 741 pregnancies in control group were included. Women with endometriosis had a higher risk of preterm delivery < 34 weeks (6.4% vs 2.8%, OR 2.42, 95% CI 1.22-4.82), preterm delivery < 37 weeks (17.8% vs 9.7%, OR 1.98, 95% CI 1.23-3.19), and neonatal admission to Intensive Care Unit (14.1% vs 7.0%, OR 2.04, 95% CI 1.23-3.36). At post hoc analysis, women with endometriosis and severe adenomyosis had an increased risk of placenta previa (23.1% vs 1.8%, OR 16.68, 95% CI 3.49-79.71), cesarean delivery (84.6% vs 38.9%, OR 8.03, 95% CI 1.69-38.25) and preterm delivery < 34 weeks (23.1% vs 5.7%, OR 5.52, 95% CI 1.38-22.09). CONCLUSION: Women with endometriosis who conceive naturally have increased risk of preterm delivery and neonatal admission to intensive care unit. When severe adenomyosis is coexistent with endometriosis, women may be at increased risk of placenta previa and cesarean delivery. TRIAL REGISTRATION: Clinical trial registration number: NCT03354793.
Assuntos
Adenomiose , Endometriose , Placenta Prévia , Nascimento Prematuro , Adenomiose/complicações , Endometriose/complicações , Endometriose/epidemiologia , Feminino , Humanos , Recém-Nascido , Placenta Prévia/epidemiologia , Gravidez , Resultado da Gravidez/epidemiologia , Nascimento Prematuro/epidemiologia , Nascimento Prematuro/etiologia , Estudos RetrospectivosRESUMO
Endometriosis is a chronic inflammatory disease of women of reproductive age. Small bowel (SB) permeability and lipopolysaccharides (LPS) could play a role in the perduration of low grade inflammation status and the pathogenesis of endometriosis. To clarify this hypothesis, we measured SB permeability through plasma values of LPS and urinary secretion of lactulose (La), mannitol (Ma) and their ratio (L/M) in patients with endometriosis compared with healthy controls (HC). Eight patients and 14 HC entered the study. SB permeability was evaluated by high-performance liquid chromatography of urine concentrations of La and Ma. Plasma levels of LPS were measured in the blood. Moreover, a nutritional, gastroenterological, quality of life evaluation was performed through validates questionnaires and complete gynaecological evaluations. The statistical analysis of the obtained data did not show differences in anthropometric and nutritional characteristics and gastrointestinal functional disease in the two groups. Patients reported higher levels of pelvic chronic pain (3.87 ± 2.99 vs 0.15 ± 0.55; pe = 0.001) and significantly higher LPS plasma levels (0.529 ± 0.11 vs 0.427 ± 0.08; p value = .027) than HC. Our results indicate that intestinal permeability is abnormal in endometriosis patients, and it might play a role in the pathogenesis of this chronic disease.
Assuntos
Endometriose/metabolismo , Gastroenteropatias/metabolismo , Mucosa Intestinal/metabolismo , Intestino Delgado/metabolismo , Adulto , Estudos de Casos e Controles , Endometriose/complicações , Endometriose/urina , Feminino , Gastroenteropatias/complicações , Gastroenteropatias/urina , Humanos , Itália , Lactulose/farmacocinética , Lactulose/urina , Lipopolissacarídeos/sangue , Manitol/farmacocinética , Manitol/urina , Permeabilidade , Projetos Piloto , Qualidade de Vida , Adulto JovemRESUMO
The incidence of endometriosis in middle-aged women is not minimal compared to that in the reproductive age group. The treatment of affected women after childbearing age to the natural transition toward menopause has received considerably poor attention. Disease management is problematic for these women due to increased contraindications regarding hormonal treatment and the possibility for malignant transformation, considering the increased cancer risk in patients with a long-standing history of the disease. This state-of-the-art review aims for the first time to assess the benefits of the available therapies to help guide treatment decisions for the care of endometriosis in women approaching menopause. Progestins are proven effective in reducing pain and should be preferred in these women. According to the international guidelines that lack precise recommendations, hysterectomy with bilateral salpingo-oophorectomy should be the definitive therapy in women who have completed their reproductive arc, if medical therapy has failed. Strict surveillance or surgery with removal of affected gonads should be considered in cases of long-standing or recurrent endometriomas, especially in the presence of modifications of ultrasonographic cyst patterns. Although rare, malignant transformation of various tissues in endometriosis patients has been described, and management is herein discussed.
Assuntos
Endometriose/terapia , Menopausa , Tomada de Decisão Clínica , Feminino , Humanos , Histerectomia , Ovariectomia , SalpingectomiaRESUMO
Here, we demonstrate a very efficient simultaneous approach of bioenergy generation from wastewater and added-value compounds production by using a photosynthetic microalgae microbial fuel cells (PMFC), based on polybenzimidazole (PBI) composite membrane as separator. The use of PBI was proved to be very promising, even more convenient than Nafion™ in terms of energy performances as well as cost and sustainability. This polymer is also easily autoclavable, so allowing a re-use of the separator with a consequent beneficial cost effect. Two PMFCs were investigated: 1) Pt electrocatalysed and 2) Pt-free. They were operated as microbial carbon capture (MCC) device under continuous illumination, by using a domestic wastewater as anolyte and Scenedesmus acutus strain in the catholyte. The Pt-based cell allowed to generate higher volumetric power density (â¼400 mW m-3) after more than 100 operating days. This resulted in an improved wastewater treatment efficiency, determined in terms of normalised energy recovery (NER > 0.19 kWh kgCOD-1 in case of Pt). The CO2 fixation of the PMFC-grown microalgae leaded to a high accumulation of added-value products, namely pigments and fatty acids. A significant quantity of lutein was observed as well as a relevant amount of other valuable carotenoids, as violaxanthin, astaxanthin and cantaxanthin. The lipids were even excellently accumulated (49%dw). Their profile was mainly composed by fatty acids in the range C16-18, which are particularly indicated for the biofuel production. These results demonstrate the feasibility and the implemented sustainability of such PMFCs as a great potential technology for the wastewater treatment and the simultaneous production of valuable products.
RESUMO
BACKGROUND: The aim of the present study is to analyze the feasibility, safety and learning curve of Mini- Laparoscopic Lateral suspension (LLS) for the treatment of apical and anterior defects following pelvic organ prolapse. METHODS: This is a cohort study on a retrospective series of 35 consecutive patients who underwent Mini-LLS for symptomatic POP between January 2014 and July 2016. All 35 patients were operated at the Gynaecological Unit in S. Chiara Hospital by two senior surgeons (S. Tateo and L. Mereu) and by a team with optimal skills in laparoscopic surgery. Patients were divided in two groups according to two different chronological phases: phase 1 identified the initial 12 cases, phase 2 the last 23 cases. We collected pre-, peri- and post-operative information to analyze the surgical outcomes and learning curve after Mini-LLS procedures. RESULTS: The mean LLS-Overall Time (OT) was 107.6 min (range, 185- 63 min). None of the patients had intra-operative complications. No conversion to laparotomy was necessary. The mean post-operative hospital stay was 58 hours in total (SD +/-22). Only in 3 cases (8.6 %) post-operative grade I complications were observed. Recurrence of POP was observed in 3 cases (8.6 %) during a mean follow up of 18 months. The mean OT decreased with experience, in particular after the first 12 cases (phase 1: 113.54 minutes versus phase 2: 104.43 minutes). In consequence, the reduction of time per procedure was statistically significant considering the Cusum Time (CT) (P < .05). CONCLUSIONS: Mini-LLS with mesh is a safe and reproducible technique with good anatomical results, low complication rates and a short learning curve.
RESUMO
Adenomyosis is a heterogeneous gynaecologic condition with a range of clinical presentations, the most common being heavy menstrual bleeding and dysmenorrhoea; however, patients can also be asymptomatic. Several studies support the theory that adenomyosis results from invasion of the endometrium into the myometrium, causing alterations in the junctional zone. These changes are commonly seen on imaging studies, such as transvaginal ultrasound and magnetic resonance imaging. The aim of this review is to discuss the medical approach to the management of adenomyosis symptoms, including pain and abnormal uterine bleeding. The standard treatment of adenomyosis is hysterectomy, but there is no medical therapy to treat the symptoms of adenomyosis while still allowing patients to conceive. Medical therapies using suppressive hormonal treatments, such as continuous use of oral contraceptive pills, high-dose progestins, selective oestrogen receptor modulators, selective progesterone receptor modulators, the levonorgestrel-releasing intrauterine device, aromatase inhibitors, danazol, and gonadotrophin receptor hormone agonists can temporarily induce regression of adenomyosis and improve the symptoms.
Assuntos
Adenomiose/tratamento farmacológico , Feminino , HumanosRESUMO
Rupture of a gravid uterus is an obstetric emergency. Risks factors include a scarred uterus but also spontaneous rupture of an un- scarred uterus during pregnancy is possible. The authors present two cases of a spontaneous complete uterine rupture during pregnancy. The first case had only a past history of dilatation and curettage for abortion; the second case had a past history of dilatation and curettage for abortion and a monolateral laparoscopic salpingectomy for ectopic pregnancy. They presented with abdominal pain and after ultrasound scan, uterine ruptures were diagnosed. These cases show that there should be a high index of suspicious of uterine rupture in a gravid woman with a history of curettage for the possible presence of misunderstood uterine scar and in women with a past history of salpingectomy with or without corneal resection. Appropriate counseling and close follow-up might help to avoid such obstetrical catastrophes. To provide more insight into the possible risk factors for prelabor uterine rupture in pregnancy, a literature review was performed.
Assuntos
Ruptura Uterina/cirurgia , Aborto Induzido/estatística & dados numéricos , Adulto , Cesárea , Cicatriz/epidemiologia , Dilatação e Curetagem/estatística & dados numéricos , Feminino , Humanos , Recém-Nascido , Laparoscopia , Masculino , Gravidez , Gravidez Tubária/epidemiologia , Gravidez Tubária/cirurgia , Fatores de Risco , Ruptura Espontânea , Salpingectomia , Ruptura Uterina/epidemiologiaRESUMO
To describe the pre-surgical and post-surgical outcomes at one year in terms of recurrence of lower urinary tract symptoms, quality of life, and sexual function of a transurethral and laparoscopic combined approach in the treatment of bladder endometriosis. The au- thors performed a prospective observational study of 16 women affected by symptomatic bladder endometriosis at the University Hos- pitals of Cagliari, Padua, and Foggia. In all patients bladder nodule was excised with a transurethral and laparoscopic combined approach technique. Intensity of lower urinary tract symptoms (VAS score) were assessed pre- and post-operatively at one, six, and 12 months after surgery; quality of life (SF-36) and sexual functions (FSFI) were collected preoperatively and one year postoperatively. Operative time was 120.18 ± 15.77 minutes and mean blood loss was 65.12 ± 44.74. No intraoperative and postoperative complications and conversion laparotomy occurred. Intensity of lower urinary tract symptoms evaluated with VAS score were significantly lower after one, six, and 12 months postsurgery vs. presurgery (p < 0.001). The authors observed a significantly improvement in the quality of life and sexual functions in all patients at one year after surgery. This surgical approach is safe and simple in the treatment of bladder en- dometriosis, with low risks and optimal resolution of symptoms, and improvement of quality of life and sexual function.
Assuntos
Cistoscopia/métodos , Endometriose/cirurgia , Laparoscopia/métodos , Saúde Sexual , Doenças da Bexiga Urinária/cirurgia , Adulto , Conversão para Cirurgia Aberta , Dispareunia , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Duração da Cirurgia , Dor , Manejo da Dor , Complicações Pós-Operatórias/epidemiologia , Estudos Prospectivos , Qualidade de Vida , Resultado do Tratamento , Adulto JovemRESUMO
Herein the authors report the first case of prophylactic bilateral salpingo-ovariectomy (BSO) in single port access laparoscopy (SPAL) with use of diode laser in a patient with BRCA1 mutation. As fimbria could be considered the site of origin for many serous carcinomas in BRCA mutation carriers, many studies are carried out to evaluate the possibility of preventing ovarian carcinoma with BSO. SPAL is a development of endoscopic surgery which further reduces invasiveness of surgical procedures. Diode laser presents a recognized precision for tissue cutting and coagulation and its use could be highly advantageous in SPAL surgery and in particular in such situations avoiding fallopian tube histology distortion and consequently improve the prognosis of BRCA carriers.
Assuntos
Genes BRCA1 , Laparoscopia/métodos , Mutação , Ovariectomia/métodos , Salpingectomia/métodos , Aderências Teciduais/cirurgia , Adulto , Feminino , Heterozigoto , Humanos , Lasers SemicondutoresRESUMO
PURPOSE: To evaluate the role of post-surgical medical treatment with GnRHa in patients with DIE (Deep Infiltrating Endometriosis) that received complete or incomplete surgery laparoscopic excision. METHODS: Hundred fifty-nine patients with deep infiltrating endometriosis of the cul-de-sac and of the rectovaginal septum with pelvic pain undergoing laparoscopic surgery in academic tertiary-care medical center. Eighty patients underwent complete laparoscopic excision of DIE (Arm A) while 79 patients underwent incomplete surgery (Arm B). After surgery each surgical arm was randomized in two groups: no treatment groups 1A [40 pts] and 1B [40 pts] and GnRHa treatment for 6 months groups 2A [40 pts] and 2B [39 pts]. Pain recurrence and quality of life were evaluated in follow-up of 12 months and compared between groups. RESULTS: No differences were observed between patient groups 1A and 2A. Groups 1A, 2A and 2B obtained significantly lower pain scores than those achieved by the group 1B undergoing incomplete surgical treatment and no post-surgical therapy. At 1-year follow-up patients treated with en-block resection (Groups 1A and 2A) showed the lowest pain scores and the highest quality of life in comparison with the other two groups (Group 1B and 2B). CONCLUSION: GnRHa administration is followed by a temporary improvement of pain in patients with incomplete surgical treatment. It seems that it has no role on post-surgical pain when the surgeon is able to completely excise DIE implants.
Assuntos
Endometriose/cirurgia , Laparoscopia/métodos , Dor Pélvica/etiologia , Qualidade de Vida , Adulto , Escavação Retouterina/patologia , Feminino , Seguimentos , Hormônio Liberador de Gonadotropina/agonistas , Humanos , Manejo da Dor/métodos , Vagina/patologia , Adulto JovemRESUMO
â¢Single port access laparoscopy may be suggested for prophylactic salpingectomy in BRCA carriers.â¢Diode laser salpingectomy could preserve ovarian function as it can cut and coagulate with extreme precision and minimal thermal damage.
RESUMO
This is the report of three cases of unsuspected uterine leiomyosarcoma diagnosed by pathologist after hysteroscopic resection. The literature on this issue has been reviewed. Mesenchymal uterine tumors are rare malignancies, occurring in only 17 per one million women annually. The three most common variants of uterine sarcoma are endometrial stromal sarcoma, leiomyosarcoma, and malignant mixed Müllerian tumour. Less than one percent of women believed to have a leiomyoma actually have a sarcoma at hysterectomy. According to the authors' experience and the available literature reviewed, the removal of the whole myomatosus lesion, even if its appearance suggests a typical submucosal myoma, represents the only method to definitively rule out the presence of sarcomatous tissue.
Assuntos
Leiomiossarcoma/patologia , Neoplasias Uterinas/patologia , Adulto , Feminino , Humanos , Pessoa de Meia-IdadeRESUMO
PURPOSE OF INVESTIGATION: The authors' aim is to compare surgical outcome of hysteroscopic G1 and G2 submucous myomectomy using bipolar resectoscope to those performed by monopolar device. MATERIALS AND METHODS: a multicenter-observational-case-control study was conducted on premenopausal women affected by menorrhagia, pelvic pain or infertility because of submucous uterine myoma. The authors considered eligible: single G1 or G2 submucous uterine myoma, at least 0.5 cm ultrasound 'myometrial-free-margin' and two months GnRH pre-surgical treatment (myoma > three cm). Goup A patients were treated b y bipolar resectoscope and Group B by monopolar resectoscope. Primary endpoint was to compare the groups in term of complete or incomplete myomas resection ("second-step-procedure" rate). Secondary endpoint was to compare two treatments in term of surgical time and intraoperative complications rate. RESULTS: Group A (60 patients) and Group B (216 patients) were homogeneous for general features and myomas location but they differed for G2 type prevalence (73.3% vs 50.5%), mean myomas diameter (33.17 +/- 11.93 vs 29.45 +/- 9.63), and surgical time (29.43 +/- 12.6 vs 23.2 +/- 8.2 minutes). In Group A patients both G1 and G2 myomas were completely removed in single step without intraoperative/postoperative complications; in Group B surgical outcomes of G1 myomas were similar to those of Group A, while G2 myomas required procedure termination in 12% of cases because of light electrolyte disturbance (22 cases) and severe iponatremia in four cases. All intraoperative complications occurred when procedure time exceeded 30 minutes and when myomas diameter was greater than 37.5 millimeters. CONCLUSION: in the era ofmini-invasive surgery, hysteroscopic approach by bipolar device should be considered as a useful, safe, and large scale feasible procedure for submucosal myoma treatment, particularly when G2.
Assuntos
Histeroscópios , Histeroscopia/instrumentação , Leiomioma/cirurgia , Miomectomia Uterina/instrumentação , Neoplasias Uterinas/cirurgia , Adulto , Estudos de Casos e Controles , Estudos de Viabilidade , Feminino , Humanos , Hiponatremia/etiologia , Histeroscopia/efeitos adversos , Complicações Intraoperatórias , Leiomioma/patologia , Pessoa de Meia-Idade , Duração da Cirurgia , Complicações Pós-Operatórias , Miomectomia Uterina/efeitos adversos , Neoplasias Uterinas/patologia , Equilíbrio HidroeletrolíticoRESUMO
OBJECTIVE: To evaluate the efficacy of a crosslinked hyaluronic acid (HA) for the prevention of postsurgical adhesions after laparoscopic myomectomy using the Harmonic Ace. MATERIALS AND METHODS: Women 23-42 years of age who wished to conceive underwent laparoscopic myomectomy. As adhesion preventing agents, crosslinked HA gel was applied on the myometrial scar at the end of the surgery in Group A, whereas in Group B a Ringer's lactate solution was used in a prospective, observational study. Second-look mini-laparoscopy was performed 45-60 days after surgery and the adhesions were assessed according to a site-specific modified scoring. RESULTS: The incidence of postoperative adhesions was the same in both groups, but anatomically significant adhesions and site-specific modified score was significantly reduced in Group A compared to Group B control group (31.8% vs 54.6% and 1.05 +/- 1 vs 2.27 +/- 2.5, respectively). CONCLUSION: The use of auto-cross-linked HA gel confirms a protection on adhesion formation on myometrial wounds, although the degree of this effect appears to be weak. The absence of adnexa adhesions using the HA and a different uterine incision appear remarkable, although a larger number of patients is required to confirm the present findings.
Assuntos
Ácido Hialurônico/administração & dosagem , Laparoscopia/efeitos adversos , Aderências Teciduais/prevenção & controle , Procedimentos Cirúrgicos Ultrassônicos/métodos , Miomectomia Uterina/efeitos adversos , Adulto , Reagentes de Ligações Cruzadas , Feminino , Géis , Humanos , Soluções Isotônicas , Laparoscopia/instrumentação , Laparoscopia/métodos , Complicações Pós-Operatórias , Estudos Prospectivos , Lactato de Ringer , Cirurgia de Second-Look , Aderências Teciduais/epidemiologia , Procedimentos Cirúrgicos Ultrassônicos/efeitos adversosRESUMO
Minimal-invasive, single-port laparoscopic surgery is a recent innovation that may improve surgical outcomes. In this chapter, we review published research on single-port surgery in gynaecology, and the different surgical instruments available. Challenges, advantages, indications and potential future rules of this new approach are also discussed. Sixty-five studies were available for review: 17 case reports, 32 case studies, 13 retrospective comparative studies, and three randomised-controlled trials (RCTs). The recent availability of advanced instruments has made single-port surgery safer and more feasible for most benign gynaecologic surgeries. Single-port surgery has many potential benefits, but comparative trials have found no differences between single-port surgery and conventional laparoscopy in postoperative complications, postoperative pain, hospital stay, and cosmetic results. Single-port surgery seems to provide another option in the area of minimal invasive surgery, and further development of this technique, along with robotics and natural orifice transgastric endoscopic surgery, will improve dissemination of this approach.
Assuntos
Doenças dos Genitais Femininos/cirurgia , Procedimentos Cirúrgicos em Ginecologia/métodos , Laparoscopia/métodos , Feminino , Humanos , Laparoscopia/instrumentação , RobóticaRESUMO
Adhesions are the most frequent complication of abdominopelvic surgery, causing important short- and long-term problems, including infertility, chronic pelvic pain and a lifetime risk of small bowel obstruction. They also complicate future surgery with considerable morbidity and expense, and an important mortality risk. They pose serious quality of life issues for many patients with associated social and healthcare costs. Despite advances in surgical techniques, the healthcare burden of adhesion-related complications has not changed in recent years. Adhesiolysis remains the main treatment although adhesions reform in most patients. There is rising evidence, however, that surgeons can take important steps to reduce the impact of adhesions. A task force of Italian gynecologists with a specialist interest in adhesions having reviewed the current evidence on adhesions and considered the opportunities to reduce adhesions in Italy, have approved a collective consensus position. This consensus paper provides a comprehensive overview of adhesions and their consequences and practical proposals for actions that gynecological surgeons in Italy should take. As well as improvements in surgical technique, developments in adhesion-reduction strategies and new agents offer a realistic possibility of reducing adhesion formation and improving outcomes for patients. They should be adopted particularly in high risk surgery and in patients with adhesiogenic conditions. Patients also need to be better informed of the risks of adhesions.
Assuntos
Procedimentos Cirúrgicos em Ginecologia/efeitos adversos , Aderências Teciduais/etiologia , Aderências Teciduais/prevenção & controle , Abdome , Custos e Análise de Custo , Feminino , Humanos , Fatores de Risco , Aderências Teciduais/complicações , Aderências Teciduais/economia , Aderências Teciduais/epidemiologiaRESUMO
Each synthetic progestins has its own specific activities on different tissues, which can vary significantly between progestins of different classes and even within the same class. Indeed, different progestins may support or oppose the effects of estrogen depending on the tissue, thereby supporting the concept that the clinical selection of progestins for HRT is critical in determining potential positive or detrimental effects. These actions might be particularly relevant in the central nervous system (CNS) where progesterone (P) has pivotal roles besides reproduction and sexual behavior, going from neuropsychological effects to neuroprotective functions. Growing evidence supports the idea that synthetic progestins differ significantly in their brain effects, and clinical studies indicate that these differences also occur in women. Molecular and cellular characterization of the signaling properties of synthetic progestins in brain cells is therefore required and is hoped will lead to a better clinical utilization of the available compounds, as well as to new concepts in the engineering of new molecules. The aim of the present paper is to briefly review and compare neuroendocrine effects of progestogens with special reference to P metabolism into neuroactive steroids and the opioids system.
Assuntos
Encéfalo/efeitos dos fármacos , Congêneres da Progesterona/metabolismo , Congêneres da Progesterona/farmacologia , Progesterona/metabolismo , Progestinas/metabolismo , Analgésicos Opioides/metabolismo , Encéfalo/metabolismo , Feminino , Terapia de Reposição Hormonal/métodos , Humanos , Pregnanolona/metabolismo , Progesterona/farmacologia , Progestinas/farmacologia , Esteroides/biossíntese , beta-Endorfina/metabolismoRESUMO
BACKGROUND: The introduction of transvaginal approach in ultrasound (US) has enabled the accurate evaluation of the structure of the ovary and stroma. Stroma represents an acknowledged US marker for polycystic ovary syndrome (PCOS). The proportion revealed between the stroma and the ovary surface in the median section (S/A ratio) had been indicated as a reliable marker for hyperandrogenism. In order to verify the feasibility of this determination in routine use and to confirm the efficacy of S/A ratio in predicting hyperandrogenism in PCOS, a multicentric study was performed in association with five Italian research groups. METHODS: A total of 418 subjects of fertile age presenting oligomenorrhoea or secondary amenorrhoea, enlarged ovaries measuring >10 cm(3) and/or >12 follicles measuring 2-9 mm in diameter took part in the study. Clinical, US and hormonal evaluations were performed in the early follicular phase or on random days in amenorrhoeic subjects. US assessment included ovarian volume, follicle number, ovarian and stroma area in median section. The hormonal study included a baseline plasma determination of LH, FSH, estradiol (E(2)), androstenedione (A), testosterone (T), dehydroepiandrosteronesulphate, 17-hydroxy-progesterone, sex hormone-binding globulin and prolactin. Correlations and receiver operator curves were used in statistical analysis of data. RESULTS: S/A was found to be the best significant predictor of elevated A and T levels. In order to ascertain significant cut-off values in relation to A and T levels Youden indexes were calculated and indicated 0.32 as the best cut-off for the S/A ratio. CONCLUSIONS: This work underlines the importance of stroma measure in improving US diagnosis of PCOS and suggest that this parameter may be used in routine clinical practice. In fact, multicentre study demonstrated the easy feasibility of such procedure without need of sophisticated machines or intensive training for operators.