The study examined the inhibitory effect of Atractylodes macrocephala （AM） on the uterine contraction during premature delivery and explored its electrophysiological mechanism by studying the effects of AM on the C...The study examined the inhibitory effect of Atractylodes macrocephala （AM） on the uterine contraction during premature delivery and explored its electrophysiological mechanism by studying the effects of AM on the Ca^2＋-activated K^＋ currents of pregnant human myometrial smooth muscle cells with or without the treatment with intedeukin-6. Single cells were acutely isolated from pregnant human myometrial smooth muscles. Whole-cell Ca^2＋-activated K^＋ currents were recorded by using an Axopatchl-D amplifier. The cells were divided into three groups： group A in which AM was added into perfusate, group B, in which interleukin-6 was added into perfusate） and group C in which AM was added into perfusate after addition of interleukin-6. IL-6 10 ng/mL inhibited BKca by 36.9%±13.7% as compared with control （P〈0.01）. AM at 2 mg/mL raised BKca by 36.7%±22.6% or 45.2%±13.7% with or without the treatment of IL-6, respectively （P〈0.01）. It is concluded that AM was able to enhance the BKca of pregnant human myometrial smooth muscle cells treated or untreated with interleukin-6 and its effect on the BKca IL-treated cells was stronger that its effect on BKca of untreated cells. Our results suggested that AM can help to maintain the membrane potentials and the resting status of pregnant human myometrial smooth muscle cells.展开更多
Introduction: Endometrial cancer is the fourth most frequent cancer in females. Many factors can affect prognosis of this type of cancer, these mainly are the degree of myometrial invasion by the tumour, pelvic and pa...Introduction: Endometrial cancer is the fourth most frequent cancer in females. Many factors can affect prognosis of this type of cancer, these mainly are the degree of myometrial invasion by the tumour, pelvic and paraaortic lymph node spread as well as the tumour histological type (endometrioid vs non-endometrioid type).<span style="font-family:""> </span><span style="font-family:Verdana;">transvaginal ultrasound (TVS) is a highly accurate and easy method for preoperative evaluation of myometrial invasion.</span><span style="font-family:""> </span><span style="font-family:""><span style="font-family:Verdana;">Aim of </span><span style="font-family:Verdana;">the Work: The aim of this work is to assess if there is relation between the</span><span style="font-family:Verdana;"> depth of myometrial invasion by the tumor and the rate of lymph node involvement in cases of endometrial cancer. Results: It was found that there was </span><span style="font-family:Verdana;">a significant relation between lymph node affection and the depth of myometrial invasion, all the positive lymph node affections cases had myomterial invasion ></span></span><span style="font-family:""> </span><span style="font-family:Verdana;">50.0%.</span><span style="font-family:""> </span><span style="font-family:Verdana;">Conclusion: The incidence of pelvic lymph</span><span style="font-family:Verdana;"> node affection is very high in cases where the myometrium is deeply infiltrated with the tumor. Assessment of myometrial invasion preoperatively by TVU and microscopically by pathological examination of the myometrium after hysterectomy provides an accurate estimation of the rate of pelvic lymph node affection and hence necessitates lymphadenectomy procedures in cases where myometrium is deeply infiltrated by the tumor and omitted in cases where it is tumor free.</span>展开更多
目的探讨表观扩散系数(apparent diffusion coefficient,ADC)值在术前无创性预测子宫内膜癌(endometrial carcinoma,EC)患者子宫肌层浸润(myometrial infiltration,MI)、Ki-67和P53表达水平的可行性。材料与方法回顾性分析兰州大学第二...目的探讨表观扩散系数(apparent diffusion coefficient,ADC)值在术前无创性预测子宫内膜癌(endometrial carcinoma,EC)患者子宫肌层浸润(myometrial infiltration,MI)、Ki-67和P53表达水平的可行性。材料与方法回顾性分析兰州大学第二医院2017年1月至2021年12月期间在术前接受MRI扩散加权成像(diffusion weighted imaging,DWI)检查并在术后经病理证实的105名EC患者临床资料和影像数据,两名独立的放射科医生分别对照MRI增强和DWI图像在ADC图像上测量EC的最大ADC值(ADCmax)、平均ADC值(ADCmean)及最小ADC值(ADCmin)。采用二元logistic回归筛选EC患者的临床信息、ADC值与MI、Ki-67和P53表达的相关性,构建列线图预测模型,并绘制受试者工作特征(receiver operating characteristic,ROC)曲线、校准曲线和临床决策曲线(decision curve analysis,DCA)对预测模型进行评价。结果ADCmax、ADCmean和ADCmin与EC患者MI、Ki-67和P53表达水平显著相关(P<0.05),而国际妇产科学联合会(the International Federation of Gynecology and Obstetrics,FIGO)分期仅与EC患者MI和Ki-67表达水平显著相关(P<0.05)。将ADCmax、ADCmean、ADCmin与FIGO分期结合起来构建列线图模型,预测模型、ADCmax、ADCmean、ADCmin和FIGO分期预测MI的ROC曲线下面积(area under the curve,AUC)值分别为0.809、0.707、0.693、0.694和0.599;预测Ki-67表达水平的AUC值分别为0.897、0.879、0.849、0.808和0.550。结合ADCmax、ADCmean、ADCmin构建列线图模型,预测模型、ADCmax、ADCmean和ADCmin预测P53表达水平的AUC值分别为0.665、0.615、0.641和0.654。结论基于ADC值联合FIGO分期构建的列线图预测模型可作为一种有效方法在术前无创性评估EC患者MI、Ki-67和P53表达。展开更多
膀胱癌是泌尿系统发病率最高的恶性肿瘤,因对其进行准确的分类及分期较为困难,使膀胱癌患者的诊治面临着诸多问题。随着现代医疗技术的不断发展和完善,2018年,基于多参数磁共振成像(multi-parametric magnetic resonance imaging, mpMRI...膀胱癌是泌尿系统发病率最高的恶性肿瘤,因对其进行准确的分类及分期较为困难,使膀胱癌患者的诊治面临着诸多问题。随着现代医疗技术的不断发展和完善,2018年,基于多参数磁共振成像(multi-parametric magnetic resonance imaging, mpMRI)技术所提出的膀胱影像报告和数据系统(Vesical Imaging-Reporting and Data System, VI-RADS)得到了日本腹部放射学会、欧洲泌尿外科协会及欧洲泌尿外科影像学会的共同认可。VI-RADS评分可对膀胱癌进行较为准确的分类,为临床医生对膀胱癌患者的治疗提供指导。本文就VI-RADS在膀胱癌中的诊断效能、VI-RADS参数及诊断膀胱癌时最佳临界值的选择、VI-RADS与影像组学的联合等研究现状及进展进行综述,并对肿瘤大小和肿瘤所在部位对VI-RADS的影响等未来研究方向进行展望,旨在为该领域研究提供参考。展开更多
Caesarean section is dramatically increased throughout the world in recent years. Rupture of the uterus is a devastating complication in trial of labour following previous Caesarean section. Evidence suggests that the...Caesarean section is dramatically increased throughout the world in recent years. Rupture of the uterus is a devastating complication in trial of labour following previous Caesarean section. Evidence suggests that the size of the uterine scar and the residual myometrial thickness (RMT) are associated directly with the risk of uterine rupture and risk of dehiscence in subsequent deliveries. Impact of the prelabour and labour Cesarean section on the RMT has not been studied in detail. Objectives: To compare RMT, Caesarean scar defects and to evaluate the elasticity of the Caesarean scar between women who underwent prelabour and labour Caesarean sections. Methods: This was a Cross sectional analytical study. Women who underwent Caesarean section in their first pregnancy were recruited. Sample was stratified to prelabour and labour Caesarean section groups. Transvaginal ultrasound scan was performed six months following the Caesarean section. Dimensions of the uterus, uterine scar defect, RMT and elastosonography of the uterine scar were assessed. Results: A total of 240 postpartum women were analyzed. Uterine niche was detectable in 194 subjects. Prelabour CS group had demonstrated 91.7% (n = 110) scar defects (uterine niche) out of 120 cases and the rate among labour CS group was 70% (n = 84). There was a significant difference in the presence of uterine niche among 2 groups as Prelabour group was found to have more scar defects (p mm (SD 1.2) and 4.99 mm (SD 1.3) respectively and there was no significant difference (t = 0.38, p = 0.71). There was no significant difference between the dimensions of the uterine CS defects of the studied groups. Prelabour CS group had significantly higher Target strain [0.28 vs. 0.24 (t = 2.12, p = 0.04)] and significantly less strain ratio [1.45 vs. 1.55 (t -2.42, p = 0.04)] than labour CS group indicating a better scar in prelabour group. Conclusion: There was no significant difference in RMT and uterine scar defects between prelabour and labour Caesarean section groups. But prelabour Caesarean section scars were less stiff than labour Caesarean section scars. Further studies are warranted to elaborate on the association.展开更多
文摘The study examined the inhibitory effect of Atractylodes macrocephala （AM） on the uterine contraction during premature delivery and explored its electrophysiological mechanism by studying the effects of AM on the Ca^2＋-activated K^＋ currents of pregnant human myometrial smooth muscle cells with or without the treatment with intedeukin-6. Single cells were acutely isolated from pregnant human myometrial smooth muscles. Whole-cell Ca^2＋-activated K^＋ currents were recorded by using an Axopatchl-D amplifier. The cells were divided into three groups： group A in which AM was added into perfusate, group B, in which interleukin-6 was added into perfusate） and group C in which AM was added into perfusate after addition of interleukin-6. IL-6 10 ng/mL inhibited BKca by 36.9%±13.7% as compared with control （P〈0.01）. AM at 2 mg/mL raised BKca by 36.7%±22.6% or 45.2%±13.7% with or without the treatment of IL-6, respectively （P〈0.01）. It is concluded that AM was able to enhance the BKca of pregnant human myometrial smooth muscle cells treated or untreated with interleukin-6 and its effect on the BKca IL-treated cells was stronger that its effect on BKca of untreated cells. Our results suggested that AM can help to maintain the membrane potentials and the resting status of pregnant human myometrial smooth muscle cells.
文摘Introduction: Endometrial cancer is the fourth most frequent cancer in females. Many factors can affect prognosis of this type of cancer, these mainly are the degree of myometrial invasion by the tumour, pelvic and paraaortic lymph node spread as well as the tumour histological type (endometrioid vs non-endometrioid type).<span style="font-family:""> </span><span style="font-family:Verdana;">transvaginal ultrasound (TVS) is a highly accurate and easy method for preoperative evaluation of myometrial invasion.</span><span style="font-family:""> </span><span style="font-family:""><span style="font-family:Verdana;">Aim of </span><span style="font-family:Verdana;">the Work: The aim of this work is to assess if there is relation between the</span><span style="font-family:Verdana;"> depth of myometrial invasion by the tumor and the rate of lymph node involvement in cases of endometrial cancer. Results: It was found that there was </span><span style="font-family:Verdana;">a significant relation between lymph node affection and the depth of myometrial invasion, all the positive lymph node affections cases had myomterial invasion ></span></span><span style="font-family:""> </span><span style="font-family:Verdana;">50.0%.</span><span style="font-family:""> </span><span style="font-family:Verdana;">Conclusion: The incidence of pelvic lymph</span><span style="font-family:Verdana;"> node affection is very high in cases where the myometrium is deeply infiltrated with the tumor. Assessment of myometrial invasion preoperatively by TVU and microscopically by pathological examination of the myometrium after hysterectomy provides an accurate estimation of the rate of pelvic lymph node affection and hence necessitates lymphadenectomy procedures in cases where myometrium is deeply infiltrated by the tumor and omitted in cases where it is tumor free.</span>
文摘目的探讨表观扩散系数(apparent diffusion coefficient,ADC)值在术前无创性预测子宫内膜癌(endometrial carcinoma,EC)患者子宫肌层浸润(myometrial infiltration,MI)、Ki-67和P53表达水平的可行性。材料与方法回顾性分析兰州大学第二医院2017年1月至2021年12月期间在术前接受MRI扩散加权成像(diffusion weighted imaging,DWI)检查并在术后经病理证实的105名EC患者临床资料和影像数据,两名独立的放射科医生分别对照MRI增强和DWI图像在ADC图像上测量EC的最大ADC值(ADCmax)、平均ADC值(ADCmean)及最小ADC值(ADCmin)。采用二元logistic回归筛选EC患者的临床信息、ADC值与MI、Ki-67和P53表达的相关性,构建列线图预测模型,并绘制受试者工作特征(receiver operating characteristic,ROC)曲线、校准曲线和临床决策曲线(decision curve analysis,DCA)对预测模型进行评价。结果ADCmax、ADCmean和ADCmin与EC患者MI、Ki-67和P53表达水平显著相关(P<0.05),而国际妇产科学联合会(the International Federation of Gynecology and Obstetrics,FIGO)分期仅与EC患者MI和Ki-67表达水平显著相关(P<0.05)。将ADCmax、ADCmean、ADCmin与FIGO分期结合起来构建列线图模型,预测模型、ADCmax、ADCmean、ADCmin和FIGO分期预测MI的ROC曲线下面积(area under the curve,AUC)值分别为0.809、0.707、0.693、0.694和0.599;预测Ki-67表达水平的AUC值分别为0.897、0.879、0.849、0.808和0.550。结合ADCmax、ADCmean、ADCmin构建列线图模型,预测模型、ADCmax、ADCmean和ADCmin预测P53表达水平的AUC值分别为0.665、0.615、0.641和0.654。结论基于ADC值联合FIGO分期构建的列线图预测模型可作为一种有效方法在术前无创性评估EC患者MI、Ki-67和P53表达。
文摘膀胱癌是泌尿系统发病率最高的恶性肿瘤,因对其进行准确的分类及分期较为困难,使膀胱癌患者的诊治面临着诸多问题。随着现代医疗技术的不断发展和完善,2018年,基于多参数磁共振成像(multi-parametric magnetic resonance imaging, mpMRI)技术所提出的膀胱影像报告和数据系统(Vesical Imaging-Reporting and Data System, VI-RADS)得到了日本腹部放射学会、欧洲泌尿外科协会及欧洲泌尿外科影像学会的共同认可。VI-RADS评分可对膀胱癌进行较为准确的分类,为临床医生对膀胱癌患者的治疗提供指导。本文就VI-RADS在膀胱癌中的诊断效能、VI-RADS参数及诊断膀胱癌时最佳临界值的选择、VI-RADS与影像组学的联合等研究现状及进展进行综述,并对肿瘤大小和肿瘤所在部位对VI-RADS的影响等未来研究方向进行展望,旨在为该领域研究提供参考。
文摘Caesarean section is dramatically increased throughout the world in recent years. Rupture of the uterus is a devastating complication in trial of labour following previous Caesarean section. Evidence suggests that the size of the uterine scar and the residual myometrial thickness (RMT) are associated directly with the risk of uterine rupture and risk of dehiscence in subsequent deliveries. Impact of the prelabour and labour Cesarean section on the RMT has not been studied in detail. Objectives: To compare RMT, Caesarean scar defects and to evaluate the elasticity of the Caesarean scar between women who underwent prelabour and labour Caesarean sections. Methods: This was a Cross sectional analytical study. Women who underwent Caesarean section in their first pregnancy were recruited. Sample was stratified to prelabour and labour Caesarean section groups. Transvaginal ultrasound scan was performed six months following the Caesarean section. Dimensions of the uterus, uterine scar defect, RMT and elastosonography of the uterine scar were assessed. Results: A total of 240 postpartum women were analyzed. Uterine niche was detectable in 194 subjects. Prelabour CS group had demonstrated 91.7% (n = 110) scar defects (uterine niche) out of 120 cases and the rate among labour CS group was 70% (n = 84). There was a significant difference in the presence of uterine niche among 2 groups as Prelabour group was found to have more scar defects (p mm (SD 1.2) and 4.99 mm (SD 1.3) respectively and there was no significant difference (t = 0.38, p = 0.71). There was no significant difference between the dimensions of the uterine CS defects of the studied groups. Prelabour CS group had significantly higher Target strain [0.28 vs. 0.24 (t = 2.12, p = 0.04)] and significantly less strain ratio [1.45 vs. 1.55 (t -2.42, p = 0.04)] than labour CS group indicating a better scar in prelabour group. Conclusion: There was no significant difference in RMT and uterine scar defects between prelabour and labour Caesarean section groups. But prelabour Caesarean section scars were less stiff than labour Caesarean section scars. Further studies are warranted to elaborate on the association.
