A novel angiogenesis inhibitor bevacizumab induces apoptosis in the rat endometriosis model.

Our aim was to investigate the effects of anti-vascular endothelial growth factor (anti-VEGF) antibody Bevacizumab on endometrial explants and on apoptotic gene expression levels in the rat endometriosis model. Endometriotic implants were surgically formed, and rats treated with (i) 1 mg/kg single subcutaneous injection of depot leuprolide acetate; (ii) 2.5 mg/kg of single intaperitoneal injection of bevacizumab; (iii) intraperitoneal injection of saline. Histopathologic scores and adhesion scores of endometriotic foci and levels of Bcl-2-associated X protein (Bax), Cytochrome c (Cyt-c), B-cell lymphoma/leukemia 2 (Bcl-2) and B-cell lymphoma-extra large (Bcl-xl) mRNA gene expressions of endometriotic foci. Bevacizumab treatment decreased the endometriotic explant size compared with control. Bevacizumab-treated rats had lower total adhesion scores when compared with the control group. Semi-quantitative evaluation of the persistence of endometrial epithelial cells in the explants showed a lower score in gonadotropin-releasing hormone (GnRH) agonist-treated rats compared with control rats. In Bevacizumab increased expression of Bax 3.1-fold, Cyt-c 1.3-fold and decreased expression of Bcl-2 0.4-fold, Bcl-xl 0.8-fold compared with the control group. The GnRH agonist increased expression of Bax 3.0 fold, Cyt-c 1.3 fold and decreased expression of Bcl-2 0.4-fold, Bcl-xl 0.8-fold, compared with the control group. This study suggests that a novel angiogenesis inhibitor, anti-VEGF antibody bevacizumab is as effective as GnRH agonist in the regression of the endometriotic lesions in rat endometriosis model. One possible mechanism of this effect is the induction of apoptosis.

Do amniotic fluid leptin levels decrease in pregnancies with fetal trisomy 21?

The objective of this study was to find a possible correlation between Down syndrome and amniotic fluid leptin. We compared 2nd trimester amniotic fluid leptin levels of fetuses with normal karyotype and with trisomy 21. We retrospectively found 15 fetuses with Down syndrome and we randomly selected 48 fetuses with normal karyotype as controls from our perinatology record database, in order to analyse their 2nd trimester amniotic fluid leptin levels. Amniotic fluid leptin levels were analysed by enzyme-linked immunosorbent assay (ELISA). The results were evaluated by Mann-Whitney U test. It was found that amniotic fluid leptin levels did not show any significant difference between amniotic fluids of fetuses with normal karyotype and those with trisomy 21 (p = 0.061). Median level of leptin was 10.06 ng/ml (range 2.10-36.69) for trisomy 21 fetuses and 14.53 ng/ml (range 2.30-67.33) for normal fetuses. In conclusion, leptin levels were not found to change in the amniotic fluids of fetuses with trisomy 21. This excludes a possible involvement of leptin in pathogenic processes associated with trisomy 21 during the fetal period and its potential employment as a diagnostic tool.

Small cell neuroendocrine carcinoma of the endometrium and laparoscopic staging: a clinicopathologic study of a case and a brief review of the literature.

Small cell neuroendocrine (NE) carcinoma is one of the most aggressive tumors that arise in the female genital tract. Small cell carcinoma of the endometrium (SCCE) is an extremely rare disease. Because of its rarity, the only clinical reports are limited to case studies, and therefore, clinical behavior and optimal treatment modalities are not well defined. To the best of our knowledge, we present the first case of SCCE staged by laparoscopic approach. A 54-year-old parous woman admitted with intermittent vaginal spotting. On physical examination, she had a 4- x 3-cm mass fungating out of the cervical os. Magnetic resonance imaging showed an endometrial mass of 25 x 30 x 50 mm in dimensions, invading less than 50% of the depth of the myometrium at the uterine fundus. Pathologic examination revealed undifferentiated malign NE tumor of endometrium of small cell type. The patient underwent laparoscopic hysterectomy, bilateral salpingo-oophorectomy, and laparoscopic pelvic and para-aortic lymphadenectomy. The disease was surgically staged as IB. Histologically, tumor cells were monotone, with scanty, ill-defined cytoplasm and hyperchromatic nuclei. Immunohistochemically, tumor showed positive immunoreactivity for P16, neuron-specific enolase, and synaptophysin. She underwent pelvic external radiation and brachytherapy postoperatively. Patient has no evidence of disease after 26 months of follow-up. Small cell NE carcinoma of the endometrium is an extremely rare and aggressive disease. With the availability of skilled endoscopic surgeons, laparoscopic management of women, even with SCCE in early stage, can be a feasible option.

Should advanced age alone be considered a contraindication to systemic lymphadenectomy in gynecologic oncologic patients? A university hospital experience in Turkey.

In this case-control study, we aimed at analyzing the effect of pelvic and paraaortic lymphadenectomy on intraoperative and postoperative morbidity and mortality rates in a series of elderly patients (age >/= 65 years) with gynecologic malignancies. We examined preexisting medical conditions, surgical data, intraoperative and postoperative morbidity and mortality in 37 patients aged 65 years or older with endometrial and ovarian carcinoma who underwent pelvic and paraaortic lymphadenectomy. Control group consisted of patients between 60 and 64 years with similar malignancies. The number of patients with hypertension (P = 0.03), minor (P = 0.01) and major cardiac problems (P = 0.03), chronic obstructive lung disease (P = 0.02), and history of cerebrovascular disease (P = 0.04) were significantly higher in the study group than that in control. The median operative time was significantly shorter (160 min) in the study group than that (191 min) in control (P = 0.004). There were no significant differences between the groups with regard to blood loss, intraoperative and postoperative blood transfusion, preoperative and postoperative hemoglobin levels, yielded lymph nodes, and postoperative stay. Minor and major intraoperative and postoperative complications were not different between the groups. In these elected elderly patients, we demonstrate that pelvic and paraaortic lymph node dissection can be performed with an acceptable morbidity and mortality. We should perform pelvic and paraaortic lymphadenectomy in the older aged patients and advanced aged should not be considered a contraindication.