female genital tract

女性生殖道
  • 文章类型: Journal Article
    背景:血管平滑肌瘤,由平滑肌细胞和厚壁血管组成的良性肿瘤,预计在女性生殖道中非常罕见。本研究旨在描述女性生殖道血管平滑肌瘤的临床病理特征和治疗结果。
    方法:回顾性分析2008年7月至2023年10月在中南大学湘雅三医院治疗的89例生殖道血管平滑肌瘤患者。症状缓解率是该研究的主要结果。
    结果:血管平滑肌瘤占女性生殖道平滑肌瘤的0.6%。89名妇女的平均年龄为41.8±8.7岁。70名妇女(78.7%)有子宫手术史,其中两名患者通过腹腔镜子宫肌瘤切除术切除了子宫血管肌瘤。61例(68.5%)女性血管平滑肌瘤位于子宫体,17(19.1%)在阔韧带,宫颈10(11.2%),阴道仅1(1.1%)。异常子宫出血是位于子宫体或子宫颈的血管平滑肌瘤的主要临床表现,而宽韧带血管平滑肌瘤的主要临床表现是盆腔肿块。89名女性中,59人接受了保留子宫的手术,30例接受了全子宫切除术或次全子宫切除术。6名妇女的术中失血量超过500ml(700-4,500ml)。术后症状缓解率为100%。在59名子宫保留的妇女中,8在随访期间显示多发性子宫平滑肌瘤,但是很难确定它们是否是血管平滑肌瘤。一名接受全子宫切除术的妇女血管平滑肌瘤复发。
    结论:血管平滑肌瘤在女性生殖道罕见,患者可能会出现不同的症状,这与肿瘤的位置有关。子宫切除术和子宫肌瘤切除术都是有效的治疗方法,但是对于多发病变和直径较大的病变,应认识到术中出血的风险.一些患者可能出现复发。
    BACKGROUND: Angioleiomyoma, a benign tumour composed of smooth muscle cells and thick-walled vessels, is expected to be very rare in the female genital tract. This study aimed to describe the clinicopathological features and treatment outcomes of angioleiomyoma in the female genital tract.
    METHODS: We retrospectively reviewed 89 women with angioleiomyoma in the genital tract who were treated at Third Xiangya Hospital of Central South University between July 2008 and October 2023. Symptom remission rate was the primary outcome of the study.
    RESULTS: Angioleiomyomas accounted for 0.6% of leiomyomas of the female genital tract. The average age of the 89 women was 41.8 ± 8.7 years. Seventy women (78.7%) had a history of uterine surgery, of whom two patients had removed uterine angioleiomyoma by laparoscopic myomectomy. The angioleiomyomas of 61 (68.5%) women were located in the uterine corpus, 17 (19.1%) in the broad ligament, 10 (11.2%) in the cervix and only 1 (1.1%) in the vagina. Abnormal uterine bleeding was the main clinical manifestation of angioleiomyomas located in the uterine corpus or cervix, whereas the main clinical manifestation of angioleiomyomas in the broad ligaments was pelvic mass. Of the 89 women, 59 underwent surgery to preserve the uterus, and 30 underwent total hysterectomy or subtotal hysterectomy. The intraoperative blood loss was more than 500 ml (700-4,500 ml) in six women. The symptom remission rate was 100% after surgery. Among the 59 women with preserved uterus, 8 showed multiple uterine leiomyomas during follow-up, but it was difficult to determine whether they were angioleiomyomas. Angioleiomyomas recurred in one women who underwent total hysterectomy.
    CONCLUSIONS: Angioleiomyoma is rare in the female reproductive tract, and patients may present with diverse symptoms, which are related to the location of the tumour. Hysterectomy and myomectomy are both effective treatment methods, but the risk of intraoperative bleeding should be recognised for multiple lesions and those with large diameters. Relapse may occur in some patients.
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  • 文章类型: Journal Article
    Cajal间质细胞(ICC)的主要功能是通过产生自发的慢电波作为“起搏器”细胞来调节胃肠蠕动。2005年,电子显微镜显示胃肠道外的细胞类型类似于ICC(ICC样),与收缩活动和c-Kit+免疫组织化学与ICC共享。在观察到ICC样细胞的位置中,它在子宫中具有重要的功能和病理生理作用。这些细胞参与收缩作用的产科现象,比如上升的精子运输,胚胎植入,怀孕,delivery,以及月经碎片的排出。在与这些细胞相关的病理生理学中,我们发现产科改变,如复发性流产,过早交货,取消子宫收缩,胚胎植入的失败,除了肥沃年龄的其他常见条件外,如子宫内膜异位症和平滑肌瘤。
    The main function of interstitial cells of Cajal (ICCs) is to regulate gastrointestinal peristalsis by acting as a \"pacemaker\" cell by generating spontaneous slow electrical waves. In 2005, electron microscopy revealed a cell type similar to ICCs (ICC-like) outside the gastrointestinal tract, with contractile activity and c-Kit+ immunohistochemistry shared with ICCs. Among the locations where ICC-like cells have been observed, it is in the uterus where they have a significant functional and pathophysiological role. These cells are involved in obstetric phenomena of contractile action, such as ascending sperm transport, embryo implantation, pregnancy, delivery, and the expulsion of menstrual debris. Within the pathophysiology related to these cells, we find obstetric alterations such as recurrent miscarriages, premature deliveries, abolition of uterine contractions, and failures of embryo implantation, in addition to other common conditions in the fertile age, such as endometriosis and leiomyoma.
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  • 文章类型: Journal Article
    性腺激素可以改变免疫功能,这可能会影响对传染病的易感性,包括人类免疫缺陷病毒(HIV)。关于激素避孕药(HC)在使用过程中如何影响免疫反应的知识有限。CHIME研究旨在评估基于孕激素的长效激素避孕药(醋酸甲羟孕酮,依托孕烯植入,和左炔诺孕酮宫内节育器)对女性生殖道(FGT)和全身隔室的免疫学变化。
    CHIME是一项观察性队列研究,参与者在开始他们选择的HC方法之前参加2次访问。然后在12个月内进行6次访问并进行生物采样(阴道拭子,宫颈阴道灌洗,细胞刷和血液)用于免疫学,细菌学,和病毒学分析在每次访问。免疫分析将通过多色流式细胞术进行评估,以确定不同的T细胞亚群,特别是CD4T细胞亚群,避孕药具使用过程中的变化,以及与全身隔室相比,它们在FGT中的分布是否不同。该研究的目的是(1)表征与三种长效孕激素相关的FGT和全身免疫谱的变化,以及(2)评估阴道微环境,通过16srRNA测序确定,作为暴露于三种常用HC后生殖器和全身免疫谱变化的个体水平危险因素和调节因素。数据收集于2019年3月开始,计划于2024年10月完成。
    CHIME研究旨在为旨在评估三种长效仅孕激素的HC对先天和适应性免疫功能的比较影响的研究做出贡献,以了解免疫效应如何改变STI和HIV易感性。
    Gonadal hormones can modify immune function, which may impact susceptibility to infectious diseases, including Human Immunodeficiency Virus (HIV). There is limited knowledge about how hormonal contraceptives (HC) influence the immune response during the course of use. The CHIME study aims to evaluate the effect of long-acting progestin-based hormonal contraceptives (depot medroxyprogesterone acetate, etonogestrel implant, and levonorgestrel intrauterine device) on immunologic changes in the female genital tract (FGT) and systemic compartment.
    CHIME is an observational cohort study where participants attend 2 visits prior to initiating the HC method of their choice, and then attend 6 visits over 12 months with biological sampling (vaginal swabs, cervicovaginal lavage, cytobrush and blood) for immunological, bacteriological, and virological analyses at each visit. Immune profiling will be evaluated by multi-color flow cytometry to determine how different T-cell subsets, in particular the CD4 T-cell subsets, change during the course of contraceptive use and whether they have different profiles in the FGT compared to the systemic compartment. The study aims are (1) to characterize the alterations in FGT and systemic immune profiles associated with three long-acting progestin-only HC and (2) to evaluate the vaginal microenvironment, determined by 16 s rRNA sequencing, as an individual-level risk factor and moderator of genital and systemic immune profile changes following exposure to three commonly used HC. Data collection started in March 2019 and is scheduled to be completed in October 2024.
    The CHIME study aims to contribute to the body of research designed to evaluate the comparative impact of three long-acting progestin-only HC on innate and adaptive immune functions to understand how immunologic effects alter STI and HIV susceptibility.
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  • 文章类型: Journal Article
    可以利用在HIV-1传播的粘膜位点处的药物转运蛋白活性的调节来优化治疗性抗逆转录病毒药物浓度在靶粘膜下CD4T细胞处的保留。以前,我们表明地瑞纳韦是结肠直肠粘膜中P-糖蛋白外排药物转运蛋白的底物。宫颈阴道上皮的等效研究尚未报道。这里,我们描述了生理相关模型的发展,以研究抗逆转录病毒药物在阴道上皮中的渗透性。确定了HEC-1A人子宫内膜上皮细胞系的屏障特性,在双腔模型中,通过测量跨上皮电阻,甘露醇的紧密连接和双向细胞旁通透性的免疫荧光染色。然后我们应用这个模型来研究替诺福韦的渗透性,达鲁那韦和达帕韦林.外排比表明,在该模型中,每种药物的渗透性与转运蛋白无关。根尖室的pH值降低至生理水平,增加了地瑞纳韦的吸收转移,通过MK571抑制MRP外排转运而逆转的效果。因此,低pH值可能通过增加MRP转运蛋白活性来增加地瑞那韦通过上皮屏障的转移。在先前的猕猴模型体内研究中,我们证实了用地瑞纳韦阴道内刺激后MRP2表达增加,这可能进一步增加药物摄取.用炎性调节剂刺激对穿过HEC-1A屏障上皮的药物通透性没有影响,但是,在VK2/E6E7阴道细胞系中,外排和摄取药物转运蛋白的表达增加,这可能会影响达瑞那韦的处置。
    Modulation of drug transporter activity at mucosal sites of HIV-1 transmission may be exploited to optimize retention of therapeutic antiretroviral drug concentrations at target submucosal CD4+ T cells. Previously, we showed that darunavir was a substrate for the P-glycoprotein efflux drug transporter in colorectal mucosa. Equivalent studies in the cervicovaginal epithelium have not been reported. Here, we describe the development of a physiologically relevant model to investigate the permeability of antiretroviral drugs across the vaginal epithelium. Barrier properties of the HEC-1A human endometrial epithelial cell line were determined, in a dual chamber model, by measurement of transepithelial electrical resistance, immunofluorescent staining of tight junctions and bi-directional paracellular permeability of mannitol. We then applied this model to investigate the permeability of tenofovir, darunavir and dapivirine. Efflux ratios indicated that the permeability of each drug was transporter-independent in this model. Reduction of pH to physiological levels in the apical compartment increased absorptive transfer of darunavir, an effect that was reversed by inhibition of MRP efflux transport via MK571. Thus, low pH may increase the transfer of darunavir across the epithelial barrier via increased MRP transporter activity. In a previous in vivo study in the macaque model, we demonstrated increased MRP2 expression following intravaginal stimulation with darunavir which may further increase drug uptake. Stimulation with inflammatory modulators had no effect on drug permeability across HEC-1A barrier epithelium but, in the VK2/E6E7 vaginal cell line, increased expression of both efflux and uptake drug transporters which may influence darunavir disposition.
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  • 文章类型: Journal Article
    Vaginal dysbiosis and STIs are important drivers of the HIV epidemic and reproductive complications. These conditions remain prevalent, partly because most cases are asymptomatic. We have shown that inflammatory cytokines interleukin (IL)-1α, IL-1β and interferon-γ-induced protein (IP)-10 are biomarkers for detecting asymptomatic STIs and vaginal dysbiosis (bacterial vaginosis (BV) or intermediate microbiota). This study aimed to validate the performance of these biomarkers in African women recruited regardless of symptoms.
    IL-1α, IL-1β and IP-10 were measured in menstrual cup secretions, endocervical, lateral vaginal wall and vulvovaginal swabs from 550 women from Pretoria, Soweto and Cape Town, South Africa and Bondo, Kenya using Luminex and ELISA. STIs were assessed by PCR, BV by Nugent scoring and vaginal microbiota by 16S rRNA sequencing.
    Across four study populations and four types of genital specimens, the performance of IL-1α, IL-1β and IP-10 for identification of women with STIs, BV or intermediate microbiota was consistent. Of the genital samples assessed, biomarkers measured in lateral vaginal wall swabs performed best, correctly classifying 76%(95% CI 70% to 81%) of women according to STI, BV or intermediate microbiota status (sensitivity 77%, specificity 71%) and were more accurate than clinical symptoms (sensitivity 41%, specificity 57%) (p=0.0003). Women incorrectly classified as STI/BV positive using the biomarkers had more abundant dysbiosis-associated bacteria, including Prevotella bivia and Gardnerella sp, detected by 16S rRNA sequencing, but not Nugent scoring. Including vaginal pH with the cytokine biomarkers improved the accuracy of the test (82% (95% CI 75% to 88%) correctly classified), although pH alone had poor specificity (61%).
    An inexpensive, point-of-care screening test including IL-1α, IL-1β and IP-10 (and potentially pH) could be used in resource-limited settings to identify women with asymptomatic STIs and dysbiosis. These women could then be referred for aetiological testing, followed by specific treatment.
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  • 文章类型: Letter
    暂无摘要。
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    文章类型: Journal Article
    BACKGROUND: Genital tuberculosis is a common entity in gynecological practice particularly among infertile patients. It is rare in developed countries but is an important cause of infertility in developing countries.
    OBJECTIVE: The present study has investigated the prevalence of female genital tract tuberculosis (FGT) among infertile patients, which was conducted at the Obstetrics and Gynecology Unit-I, Allied Hospital, affiliated with Punjab Medical College, Faisalabad, Pakistan.
    METHODS: 150 infertile women who were referred to infertility clinic were selected randomly and enrolled in our study. Patients were scanned for possible presence of FGT by examination and relevant investigation. We evaluated various aspects (age, symptoms, signs, and socio-economic factors) of the patients having tuberculosis.
    RESULTS: Very high frequency of FGT (20%) was found among infertile patients. While, a total of 25 patients out of 30 (83.33%) showed primary infertility and the remaining 5 cases (16.67%) had secondary infertility. Among secondary infertility patients, the parity ranged between 1 and 2. A total of 40% of patients (12 cases) were asymptomatic but infertile. Evidence of family history was found in 4 out of a total of 30 patients (13.3%), respectively. According to histopathological and bacteriological examination of endometrial biopsy and laparotomy, tuberculous endometritis was found in 20 out of a total of 25 (80%) cases, while tuberculous salpingitis and tuberculous oophoritis were found both in 2 (8%) of the cases, respectively. Only one case (4%) of tuberculosis cervicitis was found in the present study.
    CONCLUSIONS: Although infertility is not a disease in classical sense, but it is an extremely important personal concern for many couples and a significant health problem for our profession. So, it is worthwhile to identify and evaluate the factors contributing to infertility.
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  • 文章类型: Journal Article
    Herpes simplex virus type 2 (HSV-2) infection is associated with a 3-fold increase in the risk of human immunodeficiency virus (HIV) acquisition, perhaps through alterations in mucosal HIV-susceptible target cells. We performed a clinical trial to assess the impact of herpes therapy on cervical immunology in HSV-2-infected, HIV-uninfected women from Africa or the Caribbean who were living in Toronto, Canada. Thirty participants received 1 g of valacyclovir orally each day for 2 months in a randomized double-blind, placebo-controlled, crossover trial. Valacyclovir did not reduce the number of cervical CD4(+) T cells, the number of dendritic cells, or the expression of proinflammatory cytokines and tended to increase the expression of the HIV coreceptor CCR5 and the activation marker CD69. Short-term valacyclovir therapy did not reverse HSV-2-associated alterations in genital immunology. Clinical Trials Registration. NCT00946556.
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