Objective To evaluate the impact of warmed and humidified CO2 on the gynecological laparoscopic operation. Methods We searched keywords related to gynecological laparoscopic and CO2 pneumoperitoneum temperature and humidity on Pubmed and Wanfang database, then analyze the postoperative pain, analgesic consumption, core temperature, operation time, length of hospital stay. Results 17 publications included into the meta analysis after screening. Compared with the standard laparoscopy, warmed and humidified CO2 can reduce postoperative pain and prevent intraoperative hypothermia. No significant difference in postoperative analgesic consumption, postoperative core temperature, duration of recovery and hospital stay, endoscope lens fog and operation time. Conclusions Only few beneficial effects on postoperative pain and core temperature have been identified in this meta-analysis, though more studies are probably needed to study the real impact of warmed and humidified CO2 for laparoscopic procedures.

Objective To study the change of glycogen phosphorylase isoenzyme BB(GPBB)in neonates with asphyxia complicated with myocardial injury and its correlation with various perinatal factors. Methods Sixty-four neonates with asphyxia(including 39 mild asphyxia and 25 severe asphyxiated neonates,30 neonates with and 34 without myocardial injures)were enrolled and 25 healthy neonates were studied as control. The plasma levels of GPBB were measured by enzyme-linked immunosorbent assay(ELISA). Myocardial enzymes,cardiac troponin I,electrocardiogram,chest X-ray were performed simultaneously. Results The plasma GPBB levels were significantly higher in neonates with myocardial injury(13.84,7.57 ng/ml)than those without myocardial injury(4.97,3.24 ng/ml)and control group(4.95,1.99 ng/ml)( P ＜ 0.01). The sensitivities of GPBB,cTnI and CK-MB in diagnosing myocardial injury were 90%,66.7% and 83.3%,respectively. The sensitivity of GPBB was significantly higher than that of cTnI(χ~2 ＝ 4.812,P ＜ 0.05),with no statistical difference between GPBB and CK-MB(χ~2 ＝ 0.577,P ＞ 0.05). The specificities of GPBB,cTnI and CK-MB in diagnosing myocardial injury were 88.2%,91.2% and 67.6%,respectively. The specificity of GPBB was significantly higher than that of CK-MB(χ~2 ＝ 4.191,P ＜ 0.05),with no statistical difference between GPBB and cTnI(χ~2 ＝ 0.159,P ＞ 0.05). Plasma GPBB levels were significantly higher in neonates with severe asphyxia(14.67,6.09 ng/ml)than those with mild asphyxia(5.61,3.56 ng/ml)and control group(P ＜ 0.01). GPBB levels were higher in mildly asphyxiated neonates than those in control neonates,but with no statistical significance(P ＞ 0.05). Spearman rank correlation analysis showed that plasma GPBB levels positively correlated with the cloudiness of the amniotic fluid(r ＝ 0.500,P ＜ 0.001)and negatively correlated with Apgar score(r ＝ -0.520,P ＜ 0.001). Conclusions This study indicated that GPBB can be used as an ideal biomarker of myocardial ischemia injury in neonates with asphyxia. The determination of GPBB in early neonatal period is useful in detecting and assessing the severity of myocardial injury.

Objective To analyze the impact of uterine septum on pregnancy and influencing factors on postopera-tive pregnancy. Methods 125 patients with septate uterus and bearing requirement who underwent TCRS were fol-lowed up to assess fertility outcome. The clinical data was retrospectively analyzed. Results Spontaneous abortion rate was 70.40%and 19.39%, live birth rates was 10.40%and 72.45 %in preoperation and postoperation respec-tively. The difference was statistically significant ( < 0.05). Spontaneous abortion rate in older than 35 years old group was significantly higher than that in younger than 35 years old group, but live birth rate was lower. There was no significant difference in different times of operation in uterine cavity, number of abortion and septum length and so on. Conclusions TCRS can significantly improve pregnancy outcome. The age has influence on postoperative pregnancy outcome. Abortion numbers, septum length, septal base width, intrauterine device (IUD) and hormone re-placement therapy (HRT) may have no effects.

Objective To investigate the influence of processed total motile sperm (PTMS) count of husband on clinical pregnan-cy rate of intrauterine insemination(IUI) .Methods We retrospectively analyzed a total of 229 cycles of IUI among 131 patients in our hospital during the past three years .The cycles were divided into 5 groups according to the PTMS count :group A(<5 × 106 ) , group B(5 × 106 - <10 × 106 ) ,group C(10 × 106 - <20 × 106 ) ,group D(20 × 106 - <30 × 106 ) ,group E(≥30 × 106 ) .The clinical pregnancy rates among different groups were compared .Results The clinical pregnancy rates among 131 patients of IUI was 26 .72% .The clinical pregnancy rates among 229 cycles of IUI was 15 .28% .The clinical pregnancy rate of group A was 23 .08% , the clinical pregnancy rate of group B was 15% ,the clinical pregnancy rate of group C was 18 .18% ,the clinical pregnancy rate of group D was 13 .46% ,the clinical pregnancy rate of group E was 13 .48% .There was no significant difference(P>0 .05) among five groups .Conclusion Ideal clinical pregnancy can be achieved when the PTMS count is between 3 × 106 and 5 × 106 .

Objective To invOstigatO thO clinical OffOct of thO ultrasound monitoring curOttagO and balloon placOmOnt hOmostas in thO trOatmOnt of cOsarOan scar prOgnancy.Methods From May 2014 to May 2016, thO clinical data of 13 casOs with cOsarOan scar prOgnancy in thO POoplO＇s Hospital of HOchuan District wOrO rOtrospOctivOly analyzOd. All 13 casOs rOcOivOd mOthotrOxatO, ultrasonic monitoring curOttagO and balloon placOmOnt hOmostas thOrapy wOrO obsOrvOd.Results Of 13 casOs,11 casOs wOrO curOd, including 9 casOs of gOstational sac OndogOnous typO and mass typO 2 casOs. ThO intraopOrativO blOOding was (167 ± 101)mL, thO opOration timO was (12.3 ± 6.3)min, thO blood HCG droppOd to normal timO was (37.2 ± 13.8)d. ThOrO wOrO 2 casOs of failurO, all of which wOrO OxogOnous gOstational sac .Conclusion Utrasound monitoring curOttagO combinOd with balloon comprOssion is a simplO, safO and Oconomical mOthod for thO trOatmOnt of OndogOnous typO of caOsarOan scar prOgnancy, which is worthy of clinical promotion.

Objective To investigate the changes of hemoglobin levels in patients with ovarian cancer after chemotherapy and the influence of anemia on the prognosis of patients.Methods A total of 73 patients with ovarian cancer were selected.SPSS 25.0 statistical software was used to analyze the changes of hemoglobin levels after chemotherapy.According to the hemoglobin content before chemotherapy,the patients were divided into anemia group (Hb ＞ 110 g/L) and non-anemia group (Hb ＜ 110 g/L).Log Rand was used to compare the difference of survival time between the two groups.COX model was used to analyze the related factors affecting the prognosis of ovarian malignant tumors.Results The hemoglobin content before and after six chemotherapy cycles were (108.24 ± 18.09) g/L and (100.17 ±21.06) g/L respectively,with significant difference (P =0.021).The incidence of anemia and the degree of anemia gradually increased.The rate of anemia after six cycles of chemotherapy was higher than before chemotherapy,with significant difference (P =0.027).Survival analysis showed that progression free survival (PFS) was significantly lower in the anemic group than in the non-anemic group (P =0.01).COX regression analysis showed that anemia,postoperative residual lesion size,and surgical clinical staging were independent factors affecting the prognosis of patients with ovarian malignant tumors.Conclusions Chemotherapy reduces the hemoglobin content in patients with ovarian malignant tumors and aggravates anemia.Anemia affects the survival rate of patients with ovarian malignant tumors and is an independent factor affecting the prognosis of patients.

Objective:To investigate the efficacy of transumbilical laparoendoscopic single-site supracervical hysterectomy in the treatment of benign uterine diseases.Methods:The clinical data of 39 patients with benign uterine diseases with the volume of uterus less than that at the 14 weeks of pregnancy who underwent supracervical hysterectomy in People's Hospital of Hechuan District of Chongqing, China between January 2018 and December 2019 were retrospectively analyzed. These patients were divided into transumbilical laparoendoscopic single-site supracervical hysterectomy group (single-site group, n = 21) and transumbilical laparoendoscopic multiple-site supracervical hysterectomy group (multiple-site group, n = 18) according to different surgical approaches. Operation time, specimen removal time, intraoperative blood loss, incision suture time, tissue debris shedding rate, postoperative off-bed time, length of hospital stay, pain score on postoperative day 1, time to anal exhaust, and the incidence of complications within 30 days after surgery were compared between the two groups. Results:Tissue debris shedding rate in the single-site group was significantly lower than that in the multiple-site group [0.00% (0/21) vs. 100.00% (18/18), χ2 = 39.00, P < 0.001]. Operation time in the single-site group was significantly longer than that in the multiple-site group [(74.20 ± 9.15) minutes vs. (62.90 ± 6.20) minutes, t = 3.323, P < 0.05). Specimen removal time and incision suture time in the single-site group were (11.10 ± 2.33) minutes and (3.90 ± 0.88) minutes, respectively, which were significantly longer than those in the multiple-site group [(4.90 ± 0.88) minutes, (2.90 ± 0.74) minutes, t = 7.97, 0.386, both P < 0.05]. There were no significant differences in intraoperative blood loss, postoperative off-bed time, pain score on postoperative day 1, length of hospital stay, time to anal exhaust, and the incidence of complications within 30 days after surgery between the two groups (all P > 0.05). Conclusion:Transumbilical laparoendoscopic single-site and multiple-site supracervical hysterectomy can acquire similar short-term surgical outcomes in the treatment of benign uterine diseases at the time of less than 14 weeks of pregnancy and transumbilical laparoendoscopic single-site supracervical hysterectomy can eliminate the long-term complications caused by tissue dissemination.

Objective To evaluate and compare the short-term effects of two kinds of plastic mulch on Oncomelania hupensis snail control in irrigation and drainage ditches with snails in Yunnan Province. Methods The irrigation and drainage ditches with high density of Oncomelania hupensis snails were chosen as the investigation sites,and then 4 groups were set,namely a colorless plastic mulch group,black plastic mulch group,colorless plastic mulch with molluscicide group and black plastic mulch with molluscicide group. The snail situation of the 4 groups was surveyed before the experiment and 7,14,21,30 days after covering plastic mulch,and the snail death rates were compared among the 4 groups. Meanwhile,the hourly temperatures of soil surface,soil surface under plastic mulch and soil layer 5,15 cm under the surface as well as the weather situation during the study period were measured and recorded. Results The average snail mortality rate of the colorless plastic mulch group was only 15.29% that was higher than that of the black plastic mulch group(6.56%)(P < 0.01). The average snail mortality rates of the colorless and black plastic mulch with molluscicide groups were 40.80% and 50.15%,respectively,and there was no statis-tic difference between them(P > 0.05). Both kinds of plastic mulches could raise the temperature of the soil surface under plas-tic mulch and the soil layer below it,and the temperature of soil under the mulches increased over the cover time,and the aver-age temperature of the soil surface under the black mulch in 30 days was higher than that under the colorless mulch. Conclu-sion It is not suitable to use plastic mulch only in irrigation and drainage ditches with snails widely in Yunnan Province be-cause of its low effect,and if necessary,the molluscicide should be added.

Objective To systematically evaluate the clinical effect and safety of repaglinide and metformin for treating diabetes mellitus (MD) of secondary failure of sulfonylurea (SFS).Methods The randomized controlled trials (RCT) at home and abroad on the comparison of effect and safety of repaglinide and metformin in treating MD with SFS were retrieved.The modified Jadad scale was employed to evaluate the literature quality.The RevMan5.3.1 software was used for conducting the meta analysis.Results A total of 10 RCT were included.The meta-analysis results showed that compared with metformin for treating MA with SFS,repaglinide decreased the fasting blood glucose effectively (MD=-2.30,95 ％ CI:-2.53--2.06,P＜0.01),increased the fasting C-peptide (MD=0.06,95％CI:0.02-0.11,P=0.01),reduced the postprandial 2 h blood glucose (MD=-2.17,95 ％CI:-2.44-1.89,P＜0.01) and decreased glycosylated hemoglobin (MD=-2.60,95％CI:-3.21--2.00,P＜0.01) as well as the adverse reactions (RR=0.05,95％CI:0.02-0.09,P＜0.01).However,there was no statistical difference in fasting insulin between the repaglinide and metformin groups (MD=0.18,95％CI:-0.18-0.54,P=0.32).Conclusion Currently evidences suggest that repaglinide is superior to metformin for treating MD with SFS.

Objective To study the effect of human homologue of polycomb 2 (HPC2) on the growth of cervical cancer cells siha and the regulation of E7 gene.Methods HPC2 and E7 genes of siha cells were silenced by siRNAs respectively.Detected the expression of HPC2 gene and protein in siha cell lines after E7 gene silencing,cell proliferation activity and the rate of cell apoptosis.Results The expressions of HPC2 mRNA and protein were decreased in siha cells with E7 gene silencing,cell proliferation was inhibited,and apoptosis was increased,which was similar to HPC2 gene silencing.Conclusion HPC2 may be involved in the regulation of cell proliferation and apoptosis,and its expression may be closely related to E7 gene in SiHa cells.