目的探讨胎盘部位结节(placental site nodules,PSNs)的临床表现与组织学特征及临床意义。方法收集20例PSNs,分析其临床表现、超声检测、组织学形态及免疫表型特征。结果患者年龄25~41岁,平均(32.48±4.77)岁,有3/5的患者有2次及以...目的探讨胎盘部位结节(placental site nodules,PSNs)的临床表现与组织学特征及临床意义。方法收集20例PSNs,分析其临床表现、超声检测、组织学形态及免疫表型特征。结果患者年龄25~41岁,平均(32.48±4.77)岁,有3/5的患者有2次及以上妊娠史,诊断为PSNs时距上次妊娠间隔5~37个月,平均(15.33±8.05)个月,15例(75%)患者因阴道不规则出血就诊。大体上PSNs大多呈膜样结构,未见明确的结节;镜下可见内膜组织中1个或多个边界清楚的卵圆形结节,结节中央为玻璃样变,周边可见数量不等的中间型滋养细胞。免疫表型:CK(AE1/AE3)、CAM5.2、EMA、GATA-3、Cyclin E、p63强阳性,PLAP局限性强阳性,α-inhibin、h PL微弱且局限性阳性,Ki-67增殖指数1%~4%。结论 PSNs是源于绒毛膜中间型滋养细胞的良性非肿瘤性病变,需与透明样变的蜕膜组织、上皮样滋养细胞肿瘤及透明样变的鳞状细胞癌等鉴别,必要时可借助于免疫组化辅助诊断。展开更多
Objectives:To investigate the effect on essential hypertension of the topical application of TAT-Cu,Zn-superoxide dismutase(TAT-SOD)at left acupoint Zusanli(ST 36),and to observe whether the change of electrical poten...Objectives:To investigate the effect on essential hypertension of the topical application of TAT-Cu,Zn-superoxide dismutase(TAT-SOD)at left acupoint Zusanli(ST 36),and to observe whether the change of electrical potential difference(EPD)can be related to the change of blood pressure.Methods:Sixteen patients with essential hypertension and 16 healthy subjects were included in the study.EPD between the left acupoints of Yanglingquan(GB 34)and Qiuxu(GB 40)was firstly screened out for the EPD detection.An intracellular superoxide quenching enzyme,TAT-SOD,was topically applied to the acupoint ST 36 within an area of 1 cm^2 once a day,and the influence on EPD was investigated.The dosage applied to TAT-SOD group(n=8)was 0.2 mL of 3000 U/mL TAT-SOD cream prepared by adding purified TAT-SOD to a vehicle cream,while placebo group(n=8)used the vehicle cream instead.The left acupoints of Yanglingquan(GB 34)and Qiuxu(GB 40)were selected for EPD measurement after comparing EPD readings between 5 acupoints on each of all 12 meridians.Results:EPDs between the left acupoints of GB 34 and GB 40 for 16 patients of essential hypertension and 16 healthy subjects were 44.9±6.4 and 5.6±0.9 mV,respectively.Daily application of TAT-SOD for 15 days at ST 36 of essential hypertension patients significantly decreased systolic blood pressure(SBP)and diastolic blood pressure(DBP)of 179.6 and 81.5 mm Hg to 153.1 and 74.1 mm Hg,respectively.Responding to the change in blood pressure,EPD between the left acupoints of GB 34 and GB 40 also declined from 44.4 to 22.8 mV with the same trend.No change was observed with SBP,DBP and EPD between the left acupoints of GB 34 and GB 40 with the daily application of the placebo cream.Conclusion:Enzymatic scavenging of the intracellular superoxide at ST 36 proved to be effective in decreasing SBP and DBP.The results reconfirm the involvement of superoxide anions and its transportation along the meridians,and demonstrate that EPD between acupoints may be an indicator to reflect its functioning status.Moreover,prellmlnary results suggest a close correlatlon between EPD and blood pressure readings,implying a possibility of using EPD as a sensitive parameter for blood pressure and to monitor the effect of antihypertensive treatment.展开更多
基金National Key R&D Program of China(No.2016YFD0400202)National Natural Science Foundation of China(No.31500685,30973720)+1 种基金Zhejiang Provincial Natural Science Foundation of China(No.LY16C050002)Start-Up Fund of Research in Quanzhou Normal University(No.G16062)。
文摘Objectives:To investigate the effect on essential hypertension of the topical application of TAT-Cu,Zn-superoxide dismutase(TAT-SOD)at left acupoint Zusanli(ST 36),and to observe whether the change of electrical potential difference(EPD)can be related to the change of blood pressure.Methods:Sixteen patients with essential hypertension and 16 healthy subjects were included in the study.EPD between the left acupoints of Yanglingquan(GB 34)and Qiuxu(GB 40)was firstly screened out for the EPD detection.An intracellular superoxide quenching enzyme,TAT-SOD,was topically applied to the acupoint ST 36 within an area of 1 cm^2 once a day,and the influence on EPD was investigated.The dosage applied to TAT-SOD group(n=8)was 0.2 mL of 3000 U/mL TAT-SOD cream prepared by adding purified TAT-SOD to a vehicle cream,while placebo group(n=8)used the vehicle cream instead.The left acupoints of Yanglingquan(GB 34)and Qiuxu(GB 40)were selected for EPD measurement after comparing EPD readings between 5 acupoints on each of all 12 meridians.Results:EPDs between the left acupoints of GB 34 and GB 40 for 16 patients of essential hypertension and 16 healthy subjects were 44.9±6.4 and 5.6±0.9 mV,respectively.Daily application of TAT-SOD for 15 days at ST 36 of essential hypertension patients significantly decreased systolic blood pressure(SBP)and diastolic blood pressure(DBP)of 179.6 and 81.5 mm Hg to 153.1 and 74.1 mm Hg,respectively.Responding to the change in blood pressure,EPD between the left acupoints of GB 34 and GB 40 also declined from 44.4 to 22.8 mV with the same trend.No change was observed with SBP,DBP and EPD between the left acupoints of GB 34 and GB 40 with the daily application of the placebo cream.Conclusion:Enzymatic scavenging of the intracellular superoxide at ST 36 proved to be effective in decreasing SBP and DBP.The results reconfirm the involvement of superoxide anions and its transportation along the meridians,and demonstrate that EPD between acupoints may be an indicator to reflect its functioning status.Moreover,prellmlnary results suggest a close correlatlon between EPD and blood pressure readings,implying a possibility of using EPD as a sensitive parameter for blood pressure and to monitor the effect of antihypertensive treatment.
