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排序方式: 共有106条查询结果,搜索用时 31 毫秒
1.
Serviddio G Loverro G Vicino M Prigigallo F Grattagliano I Altomare E Vendemiale G 《The Journal of clinical endocrinology and metabolism》2002,87(6):2843-2848
This study aimed to evaluate the effects of changes in sex hormones occurring during the menstrual cycle on the redox balance and lipid peroxidation in normal human endometrial cells. Forty women, ages 21-41 yr, who were admitted to the Department of Gynecology and Obstetrics of the University of Bari for routine checkups or were treated for benign uterine disease, underwent endometrial biopsy and venipuncture. On the basis of histological examination, patients were allocated as follows: 10 in the early proliferative phase, 12 in the late proliferative phase, 8 in the early secretory phase, and 10 in the late secretory phase. LH, FSH (immunoradiometric essay), estradiol (E2), and progesterone (P(4)) (RIA) were determined in plasma samples. On the endometrial specimens, total glutathione (GSH), oxidized GSH (GSSG), malondialdehyde, and GSH peroxidase activity (GSH-Px) were determined. Significant cycle-dependent changes in endometrial GSH-Px (P < 0.0001), GSH (P < 0.001), and GSSG as a percentage of GSH (P < 0.0001) were observed. Malondialdehyde did not show significant differences. A linear regression model correlating sex hormone changes with redox indexes was performed. A significant positive correlation was observed between E2 and GSH-Px (r = 0.74; P = 0.0001), E2 and GSSG, as percentage of total (r = 0.84; P < 0.0001); a negative correlation was found between E2 and GSH (r = -0.57; P = 0.0001). No significant correlation was found between P(4) or FSH and oxidative balance. LH was found to be correlated with GSH-Px (r = 0.66; P = 0.0001) and GSSG as percentage of GSH (r = 0.5; P < 0.001). We conclude that the hormonal pattern is involved in maintaining the optimal redox balance in endometrium, mainly through modulation of GSH level and metabolism. 相似文献
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Angiogenesis extent and expression of matrix metalloproteinase-2 and -9 agree with progression of ovarian endometriomas 总被引:31,自引:0,他引:31
Ria R Loverro G Vacca A Ribatti D Cormio G Roccaro AM Selvaggi L 《European journal of clinical investigation》2002,32(3):199-206
BACKGROUND: Changes in angiogenesis and expression of extracellular matrix-degrading enzymes have been substantiated in tumour changeover and progression. METHODS: Tissues from 44 biopsies of stage III and IV ovarian endometriomas, and 10 biopsies of normal (control) endometrium were investigated immunohistochemically to count microvessels, and by in situ hybridization to assess the expression of mRNA of matrix metalloproteinase-2 (MMP-2) and MMP-9. Implants of the tissues were investigated in the chick embryo chorioallantoic membrane (CAM) assay to determine their angiogenic capacity. RESULTS: The endometriomas displayed significantly higher counts than normal endometria and the highest values were associated with the deepest invasion level (stage IV). Microvessels localized in close association with ectopic endometrial cells in the form of winding and arborized tubes, often dilated in microaneurysmatic segments. These were absent in normal endometrium. Expression of MMP-2 and MMP-9 mRNA, evaluated as percentages of positive biopsies and intensity of expression, was up-regulated in endometriomas and more pronounced in stage IV. MMP-2 and MMP-9 mRNA were also expressed by host stromal cells, including microvascular endothelial cells, fibroblasts and macrophages, whereas the control endometrium showed very little expression of MMP-2 mRNA in a few endothelial cells and no expression of MMP-9 mRNA. Implants from stage IV endometrioma induced a more intense vasoproliferative response than those from stage III, while no vasoproliferative response was induced by the normal endometrium. CONCLUSION: These data suggest that angiogenesis and degradation of extracellular matrix occur together in endometriosis and are more pronounced in stage IV, and that endometriosis cells and some host stromal cell populations co-operate in disease progression. 相似文献
4.
G Loverro P Greco G Balducci G Caruso L Selvaggi 《Clinical and experimental obstetrics & gynecology》1991,18(2):75-79
Sonographic and postmortem findings of left visceral isomerism associated with polysplenia are reviewed. Particular stress is given to pathologic data, which could prospectively suggest some specific ultrasonic features in order to characterize this complex syndrome. 相似文献
5.
G. Cormio G. Di Vagno G. Loverro L. Selvaggi 《Archives of gynecology and obstetrics》1993,253(3):145-147
Summary The strange association of Dermatomyositis-Polymyositis (DM-PM) and cancer has been known for many years. We present the case
of a 57-year-old woman with polymyositis refractory to steroid therapy, in whom extensive investigation finally revealed a
squamous cell carcinoma of the vagina. The clinical course of myositis paralleled the course of vaginal cancer, with complete
resolution of symptoms after radiotherapy for the malignancy. 相似文献
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Giuseppe Loverro Giovanni De Pergola Edoardo Di Naro Massimo Tartagni Cristina Lavopa Anna Maria Caringella 《Journal of ovarian research》2010,3(1):1-7
Background
To verify the feasibility of ovarian stromal evaluation and correlate ovarian parameteres (echogenicity and volume) with hyperandrogenism, and both cardiovascular and metabolic risk factors in PCOS.Methods
Twenty four young PCOS patients and twelve age-matched control women were enrolled. Diagnosis of PCOS was based on the Rotterdam criteria. Ultrasound ovarian study included ovarian volume, stromal volume, stromal area and stromal area/total ovarian area ratio (S/A). Concerning hormones, insulin, LH, FSH, estradiol, androstenedione, testosterone, DHEAS, 17-hydroxy-progesterone, and SHBG were measured during the early follicular phase (days 2-5). Cardiovascular risk factors were represented by fasting plasma levels of glucose, lipids (total and HDL-cholesterol), plasminogen activator inhibitor 1 (PAI-1), von-Willebrand factor (vWF), and adiponectin. Carotid intima-media thickness (C-IMT) was measured as a parameter of cardiovascular risk.Results
A positive correlation between the S/A ratio and plasma levels of testosterone (p < 0.05) and androstenedione (p < 0.05) was found. The stromal volume, stromal area and S/A ratio were also significantly and positively correlated with PAI-1, and vWF levels, and with IMT in PCOS women (P < 0.05).Conclusions
This study shows that the ultrasound measurement of ovarian stroma is a predicting factor of hyperandrogenism degree, prothrombotic factors and cardiovascular risk in patients with PCOS. 相似文献8.
Greco P Vimercati A Cormio G Loverro G Selvaggi L 《Archives of gynecology and obstetrics》2002,267(1):1-3
Purposes of the study were to evaluate the correlation between intratumoral blood flow and stage, histologic grade, depth
of myometrial invasion and lymph node metastasis in endometrial carcinoma and to assess if vascular/lymphatic spaces invasion
is predictable by Doppler ultrasound. Fifty-three patients with endometrial carcinoma were enrolled before surgical treatment.
Transvaginal Color Doppler Ultrasound was performed to detect the areas of increased vascularity (≥3) and to record the lowest
resistance index (RI) from the blood flow signals within the tumour. Formalin fixed, paraffin embedded pathology slides were
reviewed by a senior pathologist to evaluate histologic grading, depth of myometrial invasion, presence of lymph node metastasis
and vascular/lymphatic spaces invasion. The number of patients with positive lymph node metastasis was too small to perform
any statistical evaluation. Significantly lower RI was noted in tumours of advanced stage (>FIGO Stage I), tumours with higher
histologic grade (Grade 3) and with presence of vascular invasion. No correlation was found for myometrial invasion (>50%).
A high number of vascular areas was positively correlated with all the prognostic signs. Assessment of tumour changes in vascularity
using colour Doppler ultrasound provides useful information for the preoperative prediction regarding stage and histologic
grade. The good correlation between Doppler ultrasound results and histological finding of vascular/lymphatic spaces invasion
is another point in favour of routine colour Doppler studies in patients with endometrial carcinoma. We believe this technique
is useful both for preoperative staging and that recording of tumour recurrence pattern may lead to early selection of those
patients that need additional therapy.
Received: 5 February 2001 / Accepted: 14 July 2001
Correspondence to P. Greco 相似文献
9.
Loverro G Bettocchi C Battaglia M Cormio G Selvaggi G Di Tonno P Selvaggi FP 《Gynecologic and obstetric investigation》2002,53(4):234-236
Penis and testicle amputation, vaginoplasty, and clitoroplasty are procedures that help male-to-female transsexuals to accept their body and to increase psychosocial well-being. We describe a successful correction of prolapse of the neovagina with abdominovaginal sacropexy in a male-to-female transsexual who had undergone penoscrotal flap vaginoplasty. Although the reasons for a neovaginal prolapse are not completely known, in our case vaginal sacropexy was successful, with good functional and cosmetic results. 相似文献
10.