16 research outputs found

    Environmental toxin exposure in polycystic ovary syndrome women and possible ovarian neoplastic repercussion

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    Purpose: Over the last two decades, increasing attention has been paid to environmental toxins and their effects on the female reproductive system. Endocrine disrupting chemicals (EDCs) are exogenous substances or mixtures that can mimic the action of steroid hormones and interfere with their metabolism. Advanced glycation end products (AGEs) are proinflammatory molecules that can interact with cell surface receptors and mediate the triggering of proinflammatory pathways and oxidative stress. The purpose of this review is to explore the effects of environmental toxin exposure in the pathogenesis of both polycystic ovary syndrome (PCOS) and OC (ovarian cancer), considered separately, and also to evaluate possible neoplastic ovarian repercussion after exposure in patients diagnosed with PCOS. Materials and methods: We searched PubMed for articles published in the English language with the use of the following MeSH search terms: “polycystic ovary syndrome” and “ovarian cancer” combined with “endocrine disruptors”. Titles and abstracts were examined and full articles that met the selection criteria were retrieved. A manual search of review articles and cross-references completed the search. Results: Extensive data from different studies collected in recent years concerning the effects of EDC/AGE exposure have confirmed their role in the pathophysiology of both PCOS and OC. They favor PCOS/OC development through different mechanisms that finally lead to hormonal and metabolic disruption and epigenetic modifications. Conclusions: Environmental toxin exposure in PCOS women could favor neoplastic transformation by exacerbating and potentiating some PCOS features. Further research, although difficult, is needed in order to prevent further diffusion of these substances in the environment, or at least to provide adequate information to the population considered at risk

    The Technique of Vaginal Septum as Uterine Septum: A New Approach for the Hysteroscopic Treatment of Vaginal Septum

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    Study Objective: To evaluate the outcomes of a new hysteroscopic technique for the treatment of a longitudinal vaginal septum. Design: A retrospective study. Setting: Arbor Vitae Center for Endoscopic Gynecology, Rome, Italy. Patients: Thirty women who underwent hysteroscopic treatment for a vaginal septum. Intervention: All enrolled patients underwent pelvic examination, hysteroscopy, and 2-dimensional ultrasound. In case of a diagnosis of a partial or complete uterine septum, magnetic resonance imaging or 3-dimensional ultrasound were performed, and surgical procedures were performed after diagnostic laparoscopy was used to better visualize the uterine fundus. All patients were treated with the technique using vaginal septum as uterine septum or the same methodology applied for a uterine septum. Measurements and Main Results: The procedure was successfully accomplished in all patients, and longitudinal vaginal septa were totally resected. There were no perioperative complications, and in only 1 case, vaginal bleeding occurred because of an erroneous identification of the excision line that was easily remedied with coagulation by resectoscope. Dyspareunia has improved or completely disappeared in all patients. Conclusion: The technique of vaginal septum as uterine septum for the resectoscope of a longitudinal vaginal septum appears to be safe and effective with good outcomes, even in terms of dyspareunia

    Allergic contact dermatitis to dorzolamide and benzalkonium chloride

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    Dorzolamide is a topical carbonic anhydrase II and XII inhibitor that can be administered topically, directly into the eye, as a 2% water solution. Common side e ects are conjunctivitis, erythema and eyelid edema. To the best of our knowledge, true contact dermatitis to Dorzolamide is rare and only a few cases have been reported in the literature.. We hereby report a case of contact dermatitis to both Dorzolamide and its excipient benzalkonium chloride

    Imiquimod 5% cream versus cold knife excision for treatment of VIN 2/3: a five-year follow-up

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    BACKGROUND: Vulvar intraepithelial neoplasia (VIN) is a premalingnant condition. For long time, surgery was considered the first-line therapy in the treatment of high grade VIN. Imiquimod was recently introduced as an alternative to surgery. AIM: To compare the overall complete response, the recurrence rate and the risk factors for relapse among patients with VIN 2/3 treated with Imiquimod or surgical excision. PATIENTS AND METHODS: Eighty women who had histological diagnosis of VIN 2 and VIN 3 were enrolled in this prospective study. Patients immunocompromised, with recurrent VIN, with well differentiated type VIN or VIN 1 and women treated more than once were excluded from the study. Patients were divided into two groups: group A was treated with Imiquimod, group B underwent surgical excision. Patients' characteristics analyzed were: age, smoking, degree of the primary lesion, state of margins, multifocal disease. We have evaluated the recurrence rate, the relapse rate, and the overall complete response, considering as recurrence the onset of a lesion after an initial complete response to Imiquimod and/or after the surgical treatment and as relapse all patients who had a recurrence plus those with medical treatment failure. RESULTS: Multifocal lesions (p = 0.03) and VIN 3 (p = 0.002) were associated with a higher risk of relapse. The recurrence rate was higher in the group B (p = 0.009), but the relapse rate was higher in the group A (p = 0.04). The overall complete response was better in the group B (p = 0.04). CONCLUSIONS: Although the advent of new medical options can decrease the morbidity associated with invasive surgical procedures, surgical treatments remain the best treatment modality for VIN with regard to relapse and overall complete response

    Evaluation of E6 and E7 mRNA expression in HPV DNA positive breast cancer

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    Several studies have suggested a possible role for HPV in the pathogenesis of the breast cancer. We investigated the presence of the HPV DNA in breast cancers and non malignant disease breast tissues by the use of a standard HPV detection method (INNO-Lipa HPV), in order to detect HPV DNA in metastatic nodes, to investigate a possible cervical HPV co-infection, and to evaluate the E6/E7 mRNA expression in HPV DNA positive breast cancer tissues. The rate of HPV infection was significantly higher in the cancer group than in controls (9/31 vs 0/12, p = 0.04). One out of eight metastatic axillary nodes was positive for HPV infection; 2/3 of the positive HPV breast cancer patients were co-infected at the cervical site. The role of the virus in breast oncogenesis is still unclear, since our analysis failed in demonstrating the expression of viral E6 and E7 in positive HPV positive breast tumor tissues

    Effects of Endocrine-Disrupting Chemicals on Endometrial Receptivity and Embryo Implantation. A Systematic Review of 34 Mouse Model Studies

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    Several available studies have already analyzed the systemic effects of endocrine-disrupting chemicals (EDCs) on fertile woman and neonatal outcomes, but little is still known in humans about the precise mechanisms of interference of these compounds with the endometrial receptivity. There is consistent evidence that continuous and prolonged exposure to EDCs is a risk factor for reduced fertility and fecundity in women. Preliminary studies on mammalian models provide robust evidence about this issue and could help gynecologists worldwide to prevent long term injury caused by EDCs on human fertility. In this systematic review, we aimed to systematically summarize all available data about EDC effects on blastocyst endometrial implantation. We performed a systematic review using PubMed®/MEDLINE® to summarize all in vivo studies, carried out on mice models, analyzing the molecular consequences of the prolonged exposure of EDC on the implantation process. 34 studies carried out on mouse models were included. Primary effects of EDC were a reduction of the number of implantation sites and pregnancy rates, particularly after BPA and phthalate exposure. Furthermore, the endometrial expression of estrogen (ER) and progesterone receptors (PR), as well as their activation pathways, is compromised after EDC exposure. Finally, the expression of the primary endometrial markers of receptivity (such as MUC1, HOXA10, Inn and E-cadherin) after EDC contact was analyzed. In conclusion EDC deeply affect blastocyst implantation in mouse model. Several players of the implantation mechanism are strongly influenced by the exposure to different categories of EDC

    Genetic Pre-Participation Screening in Selected Athletes: A New Tool for the Prevention of Sudden Cardiac Death?

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    Background: Sudden cardiac death (SCD) of athletes is a topical issue. Borderline cardiac abnormalities may result in SCD, which in turn may be genetically based; thus, genetic analysis may help to identify potentially pathological cardiac abnormalities. Aim: We performed phenotype-guided genetic analysis in athletes who, pre-participation, showed ECG and/or Echo borderline abnormalities, to discriminate subjects at a greater risk of SCD. Subjects and Methods: We studied 24 elite athletes referred by the National Federation of Olympic Sports; and 25 subjects seeking eligibility to practice agonistic sport referred by the Osservatorio Epidemiologico della Medicina dello Sport, Regione Campania. Inclusion criteria were: a) borderline ECG repolarization abnormalities; b) benign ventricular arrhythmias; c) LVWT in the grey zone of physiology versus pathology (MWT 12-15 mm in females; 13-16 mm in males). Based on the suspected phenotype, we screened subjects for LMNA gene, 8 sarcomeric genes, 5 desmosomal genes, and cardiac calcium, sodium and potassium channel disease genes. Results: Genetic analysis was completed in 37 out of 49 athletes, 22 competitive and 27 non-competitive athletes, showing borderline clinical markers suggestive of hypertrophic cardiomyopathy (HCM n 24), dilated cardiomyopathy (n 4), arrhythmogenic right ventricular dysplasia/catecholaminergic polymorphic ventricular tachycardia (ARVD/CPVT n 11), long QT syndrome (LQTS n 4), sick sinus syndrome (SSS n 5), or Brugada syndrome (BrS n 1). We identified 11 mutations in 9 athletes (an ARVD athlete was a compound heterozygote for the PKP2 gene and an HCM athlete was a double heterozygote for the MYBPC3 and TNNT2 genes): 3 known mutations related to LQTS, HCM and ARVD, respectively, and 8 novel mutations, located in the SCN5A, RyR2, PKP2, MYBPC3 and ACTC1 genes. The new mutations were absent from ~800 normal chromosomes and were predicted probably damaging by in silico analysis. Patch clamp analysis in channelopathies indicated that some mutations were associated with abnormal biophysical behavior of the corresponding mutant protein. Conclusion: Genetic analysis may help distinguish between physiology and pathology in athletes with suspected familial or sporadic heart disease

    Assessment of HPV-mRNA test to predict recurrent disease in patients previously treated for CIN 2/3

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    Background: The use of HPV-mRNA test in the follow-up after LEEP is still matter of debate, with regard to its capacity of prediction relapse. Objective: The aim of the present study is to evaluate the reliability of HPV-mRNA test to predict the residual and recurrent disease, and its accuracy in the follow-up of patients treated for CIN 2/3. Study design: Multicenter prospective cohort study. Patients who underwent LEEP after a biopsy diagnosing CIN 2/3 were followed at 3, 6, 12, 24 and 36 months. Each check up included cytology, colposcopy, HPV-DNA test (LiPA) and HPV-mRNA test (PreTect HPV Proofer Kit NorChip). Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), of HPV-DNA test and HPV-mRNA test to predict relapse, recurrent and residual disease. Using multiple logistic regression, the statistical significant variables as assessed in univariate analysis were entered and investigated as predictors of relapse disease. Results: The mRNA-test in predicting a residual disease had a sensitivity of 52% and a NPV of 91%, whereas DNA-test had 100% and 100%, respectively. On the contrary in the prediction of recurrent disease mRNA-test had a sensitivity and a NPV of 73.5% and 97%, whereas DNA-test had 44% and 93%. On the multivariate analysis, age, cytology, HPV DNA and mRNA test achieved the role of independent predictors of relapse. Conclusion: HPV-mRNA test has a higher sensitivity and a higher NPV in predicting recurrent disease, for this reason it should be used in the follow-up of patients treated with LEEP for CIN 2/3 in order to individualize the timing of check up. © 2014 Elsevier B.V
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