目的 探索冻融胚胎移植周期胚胎移植前宫腔灌注胚胎培养上清液对胚胎种植及妊娠结局的影响。方法 纳入我院 2019 年 3 月—2019 年 12 月 共计198个冻 融 胚 胎 移 植 ( frozen-thawed embryo transfer,FET)周期。根据 FET 术前是否予胚胎培养液上清液宫腔灌注操作分成 2 组,灌注组93 个周期,对照组即未灌注组105个周期。灌注组分别于FET术前 4 周和术前 1 天行宫腔灌注胚胎培养上清液,对照组未行胚胎培养上清液宫腔灌注,对比两组患者胚胎着床率、临床妊娠率、流产率。结果 灌注组患者的胚胎着床率高于对照组,差异有统计学意义(P＜0.05)。两组间的临床妊娠率、流产率未见统计学差异(P>0.05)。结论 FET术前宫腔灌注胚胎培养上清液可提高胚胎种植率。

Objective To investigate the potential impact of intrauterine perfusion of embryo culture supernatant before frozen-thawed embryo transfer (FET) on pregnancy outcome. Methods From March to December 2019, a total of 198 FET cycles were enrolled for the present study.Patients were divided into two groups: the study group included 93 cycles, patients in this group received intrauterine perfusion of embryo culture supernatant four weeks and one day before the embryo transfer, respectively; the control group included 105 cycles, and patients in this group did not receive intrauterine perfusion. Rates of implantation, pregnancy, and miscarriage were compared between the two groups. Results The implantation rate in the study group was higher than that in the control group (P<0.05). There were no significant differences in clinical pregnancy rate and abortion rate between the two groups (P>0.05). Conclusion With the performance of intrauterine perfusion of embryo culture supernatant before embryo transfer, the implantation rate may be improved in FET cycles.

目的 观察普瑞巴林联合甲钴胺对腰椎手术术后急性疼痛的影响。方法 按照纳入排除标准选择2019年1月—2019年12月在我院行单一节段的腰椎手术患者共60例,缝皮时常规予0.375%罗哌卡因20 mL切口周围浸润,术后使用病人静脉自控镇痛(Patient-Controlled Intravenous Analgesia, PCIA)。患者随机分为2组,实验组:术前1天开始口服普瑞巴林75 mg bid和静脉注射甲钴胺注射液 0.5 mg qd,共5天;对照组:术前1天开始口服普瑞巴林 75 mg bid和注射等体积的生理盐水,共5天。观察术前和术后6、12、24、48 h的VAS评分,在术前、术后24 h和术后48 h进行JOA评分,记录术后24 h和48 h阿片类药物用量、PCIA按压次数、补救用药量和不良反应。结果 两组患者术后12 h内的VAS评分无差异,但是在12～48 h这段时间里实验组的静息VAS和运动VAS评分均低于对照组(P<0.05)。实验组在术后24 h和48 h舒芬太尼消耗量、PCIA按压次数和平均补救用药剂量少于对照组(P<0.05),两组患者的JOA评分和不良反应均无差异(P>0.05)。结论 普瑞巴林联合甲钴胺应用于腰椎手术患者术后镇痛效果良好,药物不良反应发生率低,但仍需进行更大规模的随机对照研究证实该镇痛方案的安全性和有效性。

Objective To observe the effect of pregabalin combined with mecobalamin on acute pain after lumbar surgery. Methods A total of 60 patients underwent single lumbar spine surgery in our hospital from January 2019 to December 2019. The incisions of patients were routinely infiltrated around the incision with 0.375% ropivacaine 20 mL. Patient-controlled intravenous analgesia (PCIA) was used. The patients were randomly divided into two groups. The experimental group: oral pregabalin 75mg bid and intravenous mecobalamin injection 0.5mg qd 1 day before surgery, five days in total. Control group: oral pregabalin 75mg bid and intravenous injection of equal volume of saline 1 day before surgery, five days in total. The VAS scores of preoperative and postoperative 6, 12, 24, and 48 h were observed. JOA scores were performed before surgery, 24 h after surgery, and 48 h after surgery. The doses of opioids, PCIA pressing times, remedial medications and adverse reactions were recorded at 24 h and 48 h after surgery. Results There was no significant difference in VAS scores between the two groups within 12 h after surgery, but the resting VAS and exercise VAS scores in the experimental group were lower than those in the control group during the period of 12～48 h (P<0.05). The amount of sufentanil, the pressing times of PCIA and the average remedial medication in the experimental group were lower than those in the control group at 24 h and 48 h after operation (P<0.05). There were no significant differences in JOA scores and adverse reactions between the two groups (P>0.05). Conclusion Pregabalin combined with mecobalamin in patients with lumbar spine surgery has good postoperative analgesia and low incidence of adverse drug reactions, but more randomized controlled trials are needed to confirm the safety and efficacy.

目的 探讨孕中后期中低等强度有氧运动对高龄孕妇产前生活质量和母婴结局的影响。方法 选2017年8月—2018年12月我院接收的560名高龄孕妇作为研究对象,随机分成数量相等的两组。对照组采取常规孕期保健服务和健康教育,观察组则在此基础上增加孕中后期中低等有氧运动的干预,问卷法调查两组孕妇的抑郁情况、睡眠质量、产前生活质量,并比较两组孕妇的母婴结局。结果 χ²检验结果显示,研究组对象平均每周运动次数≥3次及平均每次运动时间≥30 min的比例高于对照组(P=0.001)。研究组对象的EPDS抑郁分值和SRSS睡眠质量分值均低于对照(P=0.006)。研究组对象产前GQOLI-74生活质量问卷中生活质量总得分高于对照组(P=0.000 1)。研究组对象的妊娠糖尿病、妊娠高血压、难产率、巨大儿发生率均低于对照组(P=0.039),但自然分娩率高于对照组(P=0.004)。结论 以瑜伽、慢走或散步为主的中低强度的有氧运动可能有助于提供高龄孕妇的产前生活质量,预防妊娠疾病和不良母婴结局,在临床上具有一定的推广意义。

Objective To study the influences of medium or low strength aerobics during 2^nd and 3^rd trimester on life quality and pregnant outcome of elderly pregnant women. Methods To select 560 elderly pregnant women in our hospital during August 2017 to December 2018 as the objects of this study. Objects were divided into control group which was given routine pregnant health services and study group which was given medium or low strength aerobicsduring 2^nd and 3^rd trimester excluding in addition. Questionnaires were used for collecting messages of depression, sleeping, life quality of objects. Pregnant outcome were compared of two groups by Chi-square test in this study. Results The ratio of average aerobics more than 3 times per week and average time more than 30min each time of study group were higher than control group(P=0.001). The scores of EPDS and SRSS of study group were lower than control group(P=0.006). The scores of GQOLI-74 of study group were higher than control group(P=0.000 1). The ratio of pregnant diabetes mellitus, pregnant hypertension, dystocia, fetal macrosomia of study group were lower than control group(P=0.039) but the ratio of eutocia was higher than control group(P=0.004). Conclusion The medium or low strength aerobics such as Yoga, taking a walk may improve pregnant life quality of elderly pregnant women and prevent pregnancy disease and abnormal pregnant outcome that deserved to promote in clinic.

目的 探讨制何首乌、巴戟天及二者配伍,对氧化型低密度脂蛋白(ox-LDL)诱导的人脐静脉内皮细胞(HUVEC)损伤的影响,以示临床。方法 建立ox-LDL诱导的HUVEC损伤模型,分别用制何首乌、巴戟天、二者配伍的水煮物干预,检测HUVEC的细胞增殖、相对活率、细胞凋亡率、细胞周期、NFκB mRNA的表达。结果 ①制何首乌、巴戟天均能抑制ox-LDL诱导的HUVEC凋亡,二者配伍的抑制作用强于单味中药制何首乌。②制何首乌、巴戟天均能延长ox-LDL诱导的HUVEC的细胞周期(S+G2)%,制何首乌、巴戟天的延长作用相似,二者配伍的延长作用强于单味中药制何首乌、巴戟天。③制何首乌组、巴戟天组的NFκB mRNA的表达量下降,制何首乌组的抑制作用强于巴戟天组,二者配伍的抑制作用强于单味中药制何首乌、巴戟天。结果 制何首乌、巴戟天均能抑制ox-LDL诱导的HUVEC损伤,二者配伍的作用强于单味中药制何首乌、巴戟天。

Objective To investigate the effects of Polygonum multiflorum praeparata, Morinda officinalis and their compatibility on ox-LDL-induced injury of human umbilical vein endothelial cells(HUVEC). Methods We established an ox-LDL-induced HUVEC injury model, made intervention with Polygonum multiflorumpraeparata, Morinda officinalis and their compatibility, the HUVEC cell proliferation, relative viability, apoptosis, cell cycle, NFκB mRNA were detected. Results ①Both Polygonum multiflorumpraeparata, Morinda officinalis reduced the apoptosis rate of HUVEC, and their compatibility had a stronger effect on reducing the apoptosis rate of HUVEC than single Polygonum multiflorumpraeparata. ②Both Polygonum multiflorumpraeparata, Morinda officinalis increased the HUVEC cell cycle (S+G2)%, the extension between Polygonum multiflorumpraeparata and Morinda officinalis was similar, and their compatibility increased HUVEC cell cycle (S+G2)%, it was stronger than single Polygonum multiflorumpraeparata and single Morinda officinalis. ③Both Polygonum multiflorumpraeparata and Morinda officinalis down-regulated the expression of NFκB mRNA in HUVEC, their compatibility down-regulated HUVEC NFκB mRNA expression,it was stronger than Polygonum multiflorumpraeparata, Morinda officinalis. Conclusion Polygonum multiflorumpraeparata, Morinda officinalis and their compatibility can inhibit ox-LDL-induced HUVEC injury, and their compatibility inhibition is stronger than single Polygonum multiflorumpraeparata, and Morinda officinalis.

目的 分析人脑胶质瘤组织中O6—甲基鸟嘌呤—DNA甲基转移酶(MGMT)、DNA拓扑异构酶Ⅱ(TopoⅡ)基因的表达情况及其对化疗敏感性的影响。方法 收集医院2012年4月—2018年6月期间进行开颅手术切除的新鲜人脑胶质瘤标本80例和同期经颅脑手术治疗的脑外伤或脑出血内减压切除的正常脑组织30例。采用免疫组化法检测两种标本中MGMT和TopoⅡ基因表达情况,并通过脑胶质瘤U251和U87细胞培养、体外药物(替莫唑胺)干预、Transwell体外侵袭实验分析其对化疗敏感性的影响。结果 胶质瘤标本、正常脑组织MGMT和TopoⅡ基因表达程度分布比较差异均有统计学意义(P＜0.05),且二者MGMT基因阳性表达率分别为63.75%、3.33%,TopoⅡ基因阳性表达率分别为55.00%、0.00%,差异有统计学意义(P＜0.05)。MGMT、TopoⅡ基因均在细胞核显示为阳性染色。体外药物干预的实验组、未进行药物干预的阴性对照组干预前U251、U87细胞穿膜细胞计数比较无统计学意义(P＞0.05),但干预后实验组U251、U87细胞穿膜细胞计数高于阴性对照组(P＜0.05),干预后实验组U251、U87细胞有更强的侵袭力。结论 MGMT和TopoⅡ基因在人脑胶质瘤标本中阳性表达率高,且可能参与促进脑胶质瘤细胞侵袭,影响肿瘤化疗敏感性。

Objective To analyze the expression of O6-methylguanine-DNA methyltransferase (MGMT) and DNA topoisomerase II (Topo II) genes in human brain gliomas and its influence on the chemosensitivity. Methods A total of 80 fresh human brain glioma specimens resected by craniotomy and 30 normal brain tissues resected by craniocerebral operation for traumatic brain injury or decompression for cerebral hemorrhage during the period from April 2012 to June 2017 were collected. The expression of MGMT and Topo II genes in the two kinds of specimens was detected by immunohistochemical method, and the influence on chemosensitivity was analyzed through brain glioma U251 and U87 cell culture, in vitro drug (temozolomide) intervention and Transwell invasion in vitro. Results There was a significant difference in the expression of MGMT and Topo II genes in glioma specimens and normal brain tissues (P<0.05). The positive expression rates of MGMT gene in the two kinds of specimens were 63.75% and 3.33% respectively while the positive expression rates of Topo II gene were 55.00% and 0.00%, respectively (P<0.05). Both of MGMT and Topo II genes were displayed in the nucleus as positive staining. There was no significant difference in transmembrane cell count of U251 and U87 cells between the experimental group given drug intervention in vitro and negative control group without drug intervention before the intervention (P>0.05). However, the transmembrane cell count of U251 and U87 cells in the experimental group after intervention was higher than that in the negative control group (P<0.05). After intervetion, U251 and U87 cells were with stronger invasiveness in the experimental group. Conclusion The positive expression rates of MGMT and Topo II genes are high in human brain glioma specimens. They may be involved in promoting glioma cell invasion, affecting tumor chemosensitivity.

目的 探讨流程化(CICARE)沟通模式在中下段尿路结石患者中的应用价值。方法 回顾性分析2018年8月—2019年11月我院80例中下段尿路结石患者,均行输尿管镜下钬激光碎石术,2018年8月—2019年5月的37例患者作为对照组,采用常规沟通流程,2019年6月—2019年11月的43例患者作为研究组,采用CICARE沟通模式。对比两组手术时间、沟通满意度及干预前后手术室注意事项知晓程度、贝克焦虑量表(BAI)、贝克抑郁量表21项版(BDI-21)评分。结果 研究组手术时间较对照组短(P＜0.05);干预后,研究组手术室注意事项知晓程度较对照组高(P＜0.05);干预后,研究组BAI、BDI-21评分较对照组低(P＜0.05);研究组沟通满意度95.35%(41/43)较对照组81.08%(30/37)高(P＜0.05)。结论 CICARE沟通模式应用于中下段尿路结石患者,可提高患者手术室注意事项知晓程度,减轻负性情绪,缩短手术时间,且具有较高沟通满意度。

Objective To explore the application value of CICARE communication model in patients with middle and lower urinary calculi. Methods From August 2018 to November 2019, eighty patients with middle and lower urinary calculi in our hospital were analyzed retrospectively. All patients underwent ureteroscopic holmium laser lithotripsy.Thirty-seven patients from August 2018 to May 2019 served as a control group, using a routine communication process, forty-three patients from June 2019 to November 2019 served as the study group and adopted the CICARE communication model. The two groups were compared in surgical time, communication satisfaction, awareness of operating room precautions before and after intervention, Baker Anxiety Scale (BAI), and Baker Depression Scale 21 item (BDI-21)scores. Results The operation time in the study group was shorter than that in the control group (P＜0.05). After the intervention, the awareness degree of the operating room precautions in the study group was higher than that in the control group (P<0.05). After the intervention, the BAI and BDI-21 scores in the study group were lower than those in the control group (P<0.05). The communication satisfaction of the study group was 95.35% (41/43),higher than the control group of 81.08% (30/37)(P<0.05). Conclusion The application of CICARE communication mode in patients with middle and lower urinary calculi may improve patient's awareness of precautions in the operating room. It may reduce negative emotions, shorten the operation time, and has higher communication satisfaction.

目的 运用传统中医药理论,用中西医结合的方法,探讨简便中药结合肠内营养(EN)的支持方式对胃肠道肿瘤术后营养状况和炎性反应的影响,及改善胃肠道功能的作用。方法 胃肠道肿瘤术后患者随机分为黄陈枳术汤结合肠内营养组(观察组)和单纯肠内营养组(对照组)作对比研究,观察两组病人营养支持前后营养指标视黄醇结合蛋白(RBP),血清白蛋白(ALB)及炎性指标C反应蛋白(CRP)的改善情况,观察两组病人恶心、呕吐、腹胀、腹泻等胃肠道症状发生情况。结果 营养支持后RBP,ALB均有升高,观察组病人营养支持后第7、14天RBP和ALB水平均高于对照组,CRP低于对照组,差异有统计学意义(P＜0.05)。两种病人均有胃肠道不良反应,但观察组胃肠道并发症发生率较低,差异有统计学意义(P＜0.05)。结论 黄陈枳术汤结合肠内营养的中西医结合营养支持方法能纠正胃肠道功能紊乱,提高营养支持疗效,对胃肠道肿瘤术后患者的RBP和ALB有提高作用,能降低CRP,减少炎性反应,促进患者快速康复,缩短住院时间。

Objective Using a combination of Chinese and western medicine, to explore the effect of Huang Chen Zhisu decoction combined with enteral nutrition on RBP/ALB/CRP of gastrointestinal tumor patients after surgery,and improve gastrointestinal disorders. Methods Postoperative patients of gastrointestinal tumor were randomized into Huangchen Zhisu decoction combined with enteral nutrition group(observation group)and enteral nutrition group(control group). The retinol-binding protein(RBP),albumin(ALB),C-reactive protein (CRP),gastrointestinal symptoms, adverse reaction were observed and recorded. Results After nutrition support, the level of ALB and RBP were both increased. The ALB and RBP of the observation group on the 7th and 14th day after nutrition support were higher than those of the control group.The CRP of the observation group on the 7th and 14th day after nutrition support were lower than the control group, (P<0.05).The rate of postoperative gastrointestinal disorder of the observation group was obviously lower (P<0.05). Conclusion Huangchen Zhisu decoction combined with enteral nutrition has remarkable effect,can enhance the ALB and RPB, reduce CRP. The effect was better than enteral nutrition only. It improves the nutritional status and immune function,helps to promote the resumption on of gastrointestinal function,and helps postoperative patient for a quicker recovery.

目的 分析石河子地区2型糖尿病(T2DM)合并消化道恶性肿瘤患者的临床特征,探讨T2DM合并消化道恶性肿瘤的影响因素。方法 ①纳入我院2015年至今消化道恶性肿瘤患者为研究对象。根据OGTT结果或既往有无T2DM病史分为三组:健康对照组(A组),消化道恶性肿瘤组(B组),T2DM合并消化道恶性肿瘤组(C组)。②全自动生化分析仪测定血清中糖脂代谢指标,化学发光法测定血清甲胎蛋白(AFP)等肿瘤标志物,分析其临床特征,进行组间比较,并探讨其影响因素。采用SPSS 22.0软件处理数据,并进行方差分析;影响因素采用Logistic回归分析;假设检验水准α＝0.05,双侧检验P<0.05差异有统计学意义。结果 ①基线资料比较显示:A组310例(男女比138/172),年龄(52.96±10.98)岁;B组513例(男女比343/170),胃癌患者居多(26.90%),年龄(62.26±12.34)岁;C组134例(男女比80/54),肝癌患者较多(26.12%),年龄(66.78±10.47)岁;与A组相比,B组与C组男性患者较多,年龄较大。②组间基线资料比较显示:三组的性别、年龄存在统计学差异(P<0.001)。③协方差分析消除影响因素后:与A组相比,B组及C组的TG、 TC、HDL-c降低(P<0.001);FPG、AFP、CEA、CA12-5、CA15-3、CA19-9、CA72-4升高(P<0.01)。④Logistic回归分析后结果显示:FPG为消化道恶性肿瘤发生的独立危险因素(OR=1.204);年龄是消化道恶性肿瘤及T2DM合并消化道恶性肿瘤发生的危险因素(OR=1.072,1.105),HDL-c为消化道恶性肿瘤及T2DM合并消化道恶性肿瘤发生的保护因素(OR=0.200,0.111);结论 老年男性T2DM患者易发生消化道恶性肿瘤。因此,对于高龄男性T2DM患者,尤其是HDL-c降低的情况下,应进行相关筛查,以早期防治消化道恶性肿瘤的发生发展。

Objective To analyze the clinical characteristics of patients with type 2 diabetes mellitus (T2DM)complicated with gastrointestinal malignancy in Shihezi area, and investigate the influencing factors of T2DM complicated with gastrointestinal malignancy. Methods ①Patients with malignant tumors of the digestive tract in our hospital from 2015 to the present have been included in the study. They were divided into three groups based on OGTT results or previous history of T2DM: healthy control group (group A), gastrointestinal malignant tumor group (group B), and T2DM combined gastrointestinal malignant tumor group (group C). ②Automatic biochemical analyzer measured serum glucose and lipid metabolism indicators, chemiluminescence method was used to measure serum alpha-fetoprotein (AFP)and other tumor markers, to analyze its clinical characteristics, make a comparaison between groups, and explore its influencing factors. The data was processed with SPSS 22.0 software and analysis of variance was performed; the influencing factors were analyzed by logistic reg-ression; hypothesis test level = 0.05, and the two-sided test P <0.05 was statistically significant. Results ①Comparison of baseline data showed that 310 cases (male/female 138/172)in group A were (52.96±10.98)years old. In group B, 513 patients (male/female 343/170)were diagnosed with gastric cancer (26.90%), aged (62.26±12.34)years. There were 134 cases in group C (male/female 80/54), with more liver cancer patients (26.12%), and the age was (66.78±10.47)years. Compared with group A, group B and group C had more male patients and were older. ②Comparison of baseline data among groups showed there were statistical differences in gender and age among the three groups (P<0.001). ③After covariance analysis eliminated influencing factors: compared with group A, TG, TC and HDL-c were decreased in group B and group C (P<0.001). FPG, AFP, CEA, CA12-5, CA15-3, CA19-9, and CA72-4 increased (P<0.01). ④Logistic regression analysis results: FPG was an independent risk factor for gastrointestinal malignancy (OR=1.204). Age wss a risk factor for gastrointestinal malignancy and T2DM complicated with gastrointestinal malignancy (OR=1.072, 1.105), HDL-c was the protective factor (OR=0.200, 0.111). Conclusion Elderly male T2DM patients are prone to gastrointestinal malignancies. Therefore, for elderly men with T2DM, especially when HDL-c is reduced, relevant screening should be performed to prevent and control the occurrence and development of gastrointestinal malignant tumors in the early stage.

目的 比较压力控制通气(PCV)中不同吸气流速对单肺通气(OLV)患者呼吸功能及炎症因子的影响。方法 本研究为2018—2019年对75例单肺通气患者的前瞻性研究。患者在麻醉和单肺通气(OLV)后随机分为吸气流量30 L/min(A组)、50 L/min(B组)或70 L/min(C组)。比较OLV前(T₀)、OLV后30 min(T₁)、60 min(T₂)和120 min(T₃)的呼吸力学、呼吸功能、血流动力学和血气分析,中心静脉血检测分析IL- 6、IL-8、TNF-α和sICAM-1,观察术后3天肺部并发症和ARDS的发生情况。结果 三组一般情况、血流动力学指标差异均无统计学意义(P＞0.05);B组、C组PaCO₂较A组降低(P<0.05);与T₀时比较,T₁-T₃时三组PaO_2、SVO₂均降低(P<0.05);三组PH、SO₂和HB差异均无统计学意义(P>0.05)。与A组比较,B组、C组ΔVT增大(P<0.05);三组Ppeak差异无统计学意义;与A组比较,B组、C组PEEP均增大(P<0.05);与A组比较,T₁-T₃时B组、C组V_D/V_T减少(P>0.05);与T₀比较,T₁-T₃时三组Qs/Qt增加(P<0.05);与A组比较,T₁-T₃时B组、C组Cdyn增大(P<0.05);与T₀相比,T₁-T₃时三组PaO₂/FiO₂降低(P<0.05);与T₀相比,T₁-T₃时三组IL-6、IL-8、TNF-α和sICAM-1的浓度增多(P<0.05),但A组、B组低于C组(P<0.05)。三组患者发生术后肺部并发症和ARDS差异均无统计学意义。结论 在PCV模式下通过增加吸气流速能增加VT,减少死腔率,促进 CO₂的交换,并且改善肺动态顺应性,但并不能很好的改善氧合及肺内分流。吸气流速50 mL/L在较小炎症反应的情况下达到上述改善呼吸功能和呼吸力学,可推荐应用于进行OLV患者。

Objective The effects of different inspiratory velocity PCV on respiratory function and inflammatory factors in patients with one-lung ventilation OLV were compared. Methods This was a prospective study of 75 patients with one-lung ventilation in 2018-2019. The subjects were randomized to the inspiratory velocity 30(group A),50(group B)or 70(group C)L/min after anesthesia and one-lung ventilation OLV. Respiratory mechanics,respiratory function,hemodynamics and blood gas parameters were compared between the three groups pre-OLV(T₀)and after 30 (T₁), 60 (T₂), and 120 (T₃)minutes of OLV.Center venous blood was collected to measure interleukin (IL)-6, IL-8,tumor necrosis factor (TNF)-α,andsoluble intercellular adhesion molecule-1 levels.Observation of pulmonary complications and occurrence of ARDS 3 days after operation were made. Results Hemodynamic and general patient status were similar between the three groups (all P>0.05). PaCO₂was lower in the group B and group C compared with the group A (P<0.05). Compared with T₀, PaO₂ and SVO₂were lower at T₁-T₃of the three groups(P<0.05). PH, SO2 and HB were similar between the three groups (all P>0.05).ΔVT was higher in the group B and group C compared with the group A (P<0.05);Ppeak were similar between the three groups (all P>0.05). PEEP was higher in the group B and group C compared with the group A (P<0.05); V_D/V_T decreased in the group B and group C compared with the group A (P<0.05).Compared with T₀,Qs/Qt increased at T₁-T₃ of the three groups (all P<0.05). Cdyn increased at T₁-T₃ of the group B and group C(all P<0.05). PaO₂/FiO₂ decreased at T₁-T₃ of the three groups(all P<0.05).Compared with T₀, the concentrations of Il-6, Il-8, TNF-α and sICAM-1 increased at T₁-T₃of three groups (P<0.05), and in group A and group B were lower than those in group C (P<0.05).The number of patients who had postoperative pulmonary complications PPCS or acute respiratory distress syndrome(ARDS)were similar between the three groups (all P>0.05). Conclusion In PCV mode, it can increase VT by increasing the inspiratory velocity, reduce the V_D/V_T, promote the exchange of CO₂, and increase the Cdyn, but it cannot improve the oxygenation and Qs/Qt.Inspiratory velocity of 50 mL/L to achieve the above improvement in respiratory function and respiratory mechanics in the case of a smaller inflammatory response. It may be recommended for use in patients undergoing OLV.

目的 探讨细胞毒素-1(Cytotoxin-1,CTX-1)对人卵巢癌SKOV-3细胞增殖凋亡的影响。方法 利用0、4、8、12 μg/mL浓度 CTX-1处理SKOV-3细胞6、12、24 h,MTS法检测细胞活性,8 μg/mL CTX-1处理SKOV-3细胞24、48 h,Hoechst-33258荧光染色观察细胞核染色质形态。取处理 6、12 h 后细胞,利用流式细胞仪检测SKOV-3细胞的凋亡率。结果 4、8、12 μg/mL的CTX-1可抑制SKOV-3细胞活性及增殖,呈时间-剂量依赖。Hoechst-33258染色观察可见细胞染色质呈固缩或碎裂状、染色质着色不均、核形态各异,随时间增加而更趋明显。8 μg/mL CTX-1处理细胞,6 h细胞坏死率为(1.90±0. 27)%,晚期凋亡率为(10.96±1. 56)%,而早期凋亡率为(1.52±0.39)%;12 h细胞坏死率为(10.62±0.96)%,晚期凋亡率(15.07±1.23)%,而早期凋亡率为(1.88±0.17)%,与对照组比较,差异有统计学意义 (P<0.0 1)。结论 CTX-1可以抑制人卵巢癌细胞活性、抑制其体外增殖、诱导其发生凋亡,该作用呈剂量依赖和时间依赖,主要引起细胞晚期凋亡和坏死。

Objective To investigate the effect of cytotoxin-1 (CTX-1)on the proliferation and apoptosis of ovarian cancer SKOV-3 cells. Methods SKOV-3 cells were treated with CTX-1 at concentrations of 0, 4, 8, 12 μg/mL for 6, 12, and 24 hours respectively. Cell viability was measured by MTS method. SKOV-3 cells were treated with 8 μg/mL CTX-1 for 24 and 48 hours, by Hoechst-33258 fluorescence staining to observe the morphology of nuclear chromatin. The apoptotic rate of SKOV-3 cells was detected by flow cytometry after 6 and 12 hours of treatment. Results CTX-1 at 4, 8, and 12 μg/mL inhibited the activity and proliferation of SKOV-3 cells in a time-dose-dependent manner. Hoechst-33258 staining observation showed that the apoptotic cell chromatin was condensed or fragmented chromatin, the chromatin was unevenly colored, and the nuclear morphology was different. It became more obvious with time. 8 μg/mL CTX-1 treated cells, the 6 h cell necrosis rate was (1.90±0.27)%, the late apoptosis rate was (10.96±1.56)%, and the early apoptosis rate was (1.52±0.39)%; 12 hours cell necrosis rate was (10.62±0.96)%, late apoptosis rate was (15.07±1.23)%, and early apoptosis rate was (1.88±0.17)%, compared with the control group, the difference was statistically significant (P<0.01). Conclusion CTX-1 may inhibit the activity of human ovarian cancer cells, inhibit its proliferation in vitro, and induce its apoptosis. The effect is dose-dependent and time-dependent. Mainly it causes late apoptosis and necrosis of cells.