Plasma-based proteomic profiling identifies the distinct regulation of proteins in hyperplasia and endometrial cancer.

BACKGROUND: Among gynaecological malignancies, endometrial cancer (EC) is the most prevalent type of uterine cancer affecting women. This study explored the proteomic profiles of plasma samples obtained from EC patients, those with hyperplasia (Hy), and a control group (CO). A combination of techniques, such as 2D-DIGE, mass spectrometry, and bioinformatics, including pathway analysis, was used to identify proteins with modified expression levels, biomarkers and their associated metabolic pathways in these groups. METHODS: Thirty-four patients, categorized into three groups-10 with EC, 12 with Hy, and 12 CO-between the ages of 46 and 75 years old were included in the study. Untargeted proteomic analysis was carried out using two-dimensional difference in gel electrophoresis (2D-DIGE) coupled with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). RESULTS: In all three groups, 114 proteins that were significantly (p ≤ 0.05 and fold change ≥ 1.5) altered were successfully identified using peptide mass fingerprints (PMFs). Compared with those in the control group (CO), the EC samples had 85 differentially expressed proteins (39 upregulated and 46 downregulated), and in the Hy group, 81 proteins were dysregulated (40 upregulated and 41 downregulated) compared to those in the CO group, while 33 proteins exhibited differential regulation (12 upregulated and 21 downregulated) in the EC plasma samples compared to those in the Hy group. Vitamin D binding protein and complement C3 distinguished Hy and EC from CO with the greatest changes in expression. Among the differentially expressed proteins identified, enzymes with catalytic activity represented the largest group (42.9%). In terms of biological processes, most of the proteins were involved in cellular processes (28.8%), followed by metabolic processes (16.7%). STRING analysis for protein interactions revealed that the significantly differentially abundant proteins in the three groups are involved in three main biological processes: signalling of complement and coagulation cascades, regulation of insulin-like growth factor (IGF) transport and uptake by insulin-like growth factor binding proteins (IGFBPs), and plasma lipoprotein assembly, remodelling, and clearance. CONCLUSION: The identified plasma protein markers have the potential to serve as biomarkers for differentiating between EC and Hy, as well as for early diagnosis and monitoring of cancer progression.

Tissue-Based Proteomic Profiling in Patients with Hyperplasia and Endometrial Cancer.

Uterine cancers are among the most prevalent gynecological malignancies, and endometrial cancer (EC) is the most common in this group. This study used tissue-based proteomic profiling analysis in patients with endometrial cancer and hyperplasia, and control patients. Conventional 2D gel electrophoresis, followed by a mass spectrometry approach with bioinformatics, including a network pathway analysis pipeline, was used to identify differentially expressed proteins and associated metabolic pathways between the study groups. Thirty-six patients (twelve with endometrial cancer, twelve with hyperplasia, and twelve controls) were enrolled in this study. The mean age of the participants was 46-75 years. Eighty-seven proteins were significantly differentially expressed between the study groups, of which fifty-three were significantly differentially regulated (twenty-eight upregulated and twenty-five downregulated) in the tissue samples of EC patients compared to the control (Ctrl). Furthermore, 26 proteins were significantly dysregulated (8 upregulated and 18 downregulated) in tissue samples of hyperplasia (HY) patients compared to Ctrl. Thirty-two proteins (nineteen upregulated and thirteen downregulated) including desmin, peptidyl prolyl cis-trans isomerase A, and zinc finger protein 844 were downregulated in the EC group compared to the HY group. Additionally, fructose bisphosphate aldolase A, alpha enolase, and keratin type 1 cytoskeletal 10 were upregulated in the EC group compared to those in the HY group. The proteins identified in this study were known to regulate cellular processes (36%), followed by biological regulation (16%). Ingenuity pathway analysis found that proteins that are differentially expressed between EC and HY are linked to AKT, ACTA2, and other signaling pathways. The panels of protein markers identified in this study could be used as potential biomarkers for distinguishing between EC and HY and early diagnosis and progression of EC from hyperplasia and normal patients.

COMPARE CPM-RMI Trial: Intramyocardial Transplantation of Autologous Bone Marrow-Derived CD133+ Cells and MNCs during CABG in Patients with Recent MI: A Phase II/III, Multicenter, Placebo-Controlled, Randomized, Double-Blind Clinical Trial.

This article published in Cell J (Yakhteh), Vol 20, No 2, Jul-Sep 2018, on pages 267-277, four affiliations (1, 4, 5, and 10) were changed based on authors request.

Effect of Pregnancy on the Management and Outcomes of Ovarian Torsion: A Population-Based Matched Cohort Study.

STUDY OBJECTIVE: To compare the treatment and surgical outcomes of ovarian torsion in pregnant and nonpregnant women. DESIGN: A population-based matched cohort study (Canadian Task Force classification II.1). SETTING: The United States Health Care Cost and Utilization Project Nationwide Inpatient Sample from 2003 to 2011. PATIENTS: All cases of ovarian torsion among pregnant women and nonpregnant women with ovarian torsion (matched by age in a ratio of 1:1). INTERVENTIONS: Outcomes of interest included the type of treatment received for ovarian torsion and the complications of surgery. MEASUREMENTS AND MAIN RESULTS: There were 1366 women diagnosed with ovarian torsion among 8 532 163 pregnant women for an incidence of 1.6 in 10 000. Surgery was the predominant treatment, with laparotomy being more commonly performed on pregnant women versus nonpregnant women (57.0% vs 51.0%; odds ratio = 1.28; 95% confidence interval, 1.08-1.51; p < .01). Overall conservative management was less likely performed; however, it was more common among pregnant women versus nonpregnant women (odds ratio = 1.85; 95% confidence interval, 1.44-2.37; p < .01). In general, adverse events were uncommon in both groups although ovarian infarction was more commonly reported among nonpregnant women. CONCLUSION: The diagnosis of ovarian torsion in pregnancy is rare. Compared with nonpregnant women, laparotomy and conservative management are more common among pregnant women. Treatment of ovarian torsion in pregnancy has comparable outcomes with treatment in nonpregnant women.

COMPARE CPM-RMI Trial: Intramyocardial Transplantation of Autologous Bone Marrow-Derived CD133+ Cells and MNCs during CABG in Patients with Recent MI: A Phase II/III, Multicenter, Placebo-Controlled, Randomized, Double-Blind Clinical Trial.

OBJECTIVES: The regenerative potential of bone marrow-derived mononuclear cells (MNCs) and CD133+ stem cells in the heart varies in terms of their pro-angiogenic effects. This phase II/III, multicenter and double-blind trial is designed to compare the functional effects of intramyocardial autologous transplantation of both cell types and placebo in patients with recent myocardial infarction (RMI) post-coronary artery bypass graft. MATERIALS AND METHODS: This was a phase II/III, randomized, double-blind, placebo-controlled trial COMPARE CPM-RMI (CD133, Placebo, MNCs - recent myocardial infarction) conducted in accordance with the Declaration of Helsinki that assessed the safety and efficacy of CD133 and MNCs compared to placebo in patients with RMI. We randomly assigned 77 eligible RMI patients selected from 5 hospitals to receive CD133+ cells, MNC, or a placebo. Patients underwent gated single photon emission computed tomography assessments at 6 and 18 months post-intramyocardial transplantation. We tested the normally distributed efficacy outcomes with a mixed analysis of variance model that used the entire data set of baseline and between-group comparisons as well as within subject (time) and group×time interaction terms. RESULTS: There were no related serious adverse events reported. The intramyocardial transplantation of both cell types increased left ventricular ejection fraction by 9% [95% confidence intervals (CI): 2.14% to 15.78%, P=0.01] and improved decreased systolic wall thickening by -3.7 (95% CI: -7.07 to -0.42, P=0.03). The CD133 group showed significantly decreased non-viable segments by 75% (P=0.001) compared to the placebo and 60% (P=0.01) compared to the MNC group. We observed this improvement at both the 6- and 18-month time points. CONCLUSIONS: Intramyocardial injections of CD133+ cells or MNCs appeared to be safe and efficient with superiority of CD133+ cells for patients with RMI. Although the sample size precluded a definitive statement about clinical outcomes, these results have provided the basis for larger studies to confirm definitive evidence about the efficacy of these cell types (Registration Number: NCT01167751).

Evaluation of total laparoscopic hysterectomy with and without the use of barbed suture.

OBJECTIVE: To evaluate the outcome of total laparoscopic hysterectomy with and without the use of barbed suture. METHODS: We conducted a retrospective study among patients who underwent total laparoscopic hysterectomy between February 2008 and August 2012. The parameters evaluated were age, BMI, operative time, hospital stay, pre- and postoperative hemoglobin levels, uterine weight, intraoperative blood loss, and postoperative complications. RESULTS: A total of 202 women underwent total laparoscopic hysterectomy; barbed suture (V-Loc) was used in 63 women, and polydioxanone (PDS) in 139. Estimated blood loss, difference in hemoglobin level before and after surgery, operative time, and the duration of hospital stay were comparable between the two groups of patients. The incidence of postoperative fever was higher in the V-Loc group than in the PDS group (P = 0.003). Multiple linear regression analysis showed that the incidence of postoperative fever was related to BMI (P = 0.02, r = 0.22) and estimated blood loss (P = 0.004, r = 0.28) and not to age, operative time, or uterine weight. CONCLUSION: The use of barbed suture to close the vaginal vault after laparoscopic hysterectomy, compared with standard suture, results in similar operative time, blood loss, and duration of hospital stay. The use of barbed suture is technically less demanding than the use of regular sutures.

Objectif : Évaluer l'issue de l'hystérectomie laparoscopique totale, avec ou sans utilisation de sutures barbelées. Méthodes : Nous avons mené une étude rétrospective auprès de patientes ayant subi une hystérectomie laparoscopique totale entre février 2008 et août 2012. Les paramètres évalués étaient l'âge, l'IMC, la durée opératoire, le séjour à l'hôpital, les taux d'hémoglobine préopératoire et postopératoire, le poids utérin, la perte sanguine peropératoire et les complications postopératoires. Résultats : Au total, 202 femmes ont subi une hystérectomie laparoscopique totale; une suture barbelée (V-Loc) a été utilisée chez 63 femmes, tandis qu'une suture polydioxanone (PDS) a été utilisée chez les 139 autres femmes. La perte sanguine estimée, la différence entre le taux d'hémoglobine constaté avant la chirurgie et celui qui est constaté après celle-ci, la durée opératoire et la durée du séjour à l'hôpital étaient comparables dans les deux groupes de patientes. L'incidence de la fièvre postopératoire était plus élevée au sein du groupe « V-Loc ¼ qu'au sein du groupe « PDS ¼ (P = 0,003). L'analyse de régression linéaire multiple a indiqué que l'incidence de la fièvre postopératoire était liée à l'IMC (P = 0,02, r = 0,22) et à la perte sanguine estimée (P = 0,004, r = 0,28), mais non à l'âge, à la durée opératoire ou au poids utérin. Conclusion : L'utilisation d'une suture barbelée pour fermer le dôme vaginal à la suite d'une hystérectomie laparoscopique donne lieu à des résultats semblables à ceux de l'utilisation d'une suture standard en ce qui concerne la durée opératoire, la perte sanguine et la durée du séjour à l'hôpital. L'utilisation d'une suture barbelée est moins exigeante sur le plan technique que l'utilisation de sutures régulières.

Small bowel herniation through a spigelian defect within 48 hours after laparoscopy.

Spigelian hernia is extremely rare, with an incidence of 1% to 2% of all abdominal hernias. Herein we report the case of a woman with a spigelian hernia occurring within 48 hours after laparoscopic salpingo-oophorectomy. The patient had abdominal pain, nausea, and abdominal mass. An abdominal series revealed multiple dilatations of the small bowel, compatible with a small bowel obstruction, and computed tomography demonstrated a right-sided abdominal hernia with small bowel obstruction. The diagnosis of spigelian hernia was made during a second surgery. The bowel was reduced and the fascial defect repaired. The postoperative recovery was uneventful. It would seem that pneumoperitoneum during laparoscopic surgery and the trauma of trocar insertion can trigger development of a spigelian hernia.