Objective To investigate the relationship between IgG antibody titer in pregnant women with maternal-fetal ABO blood incompatibility and hemolytic disease of fetuses and newborns.Methods From January 31 2009 to January 31 2010,1269 singleton pregnant women who were suspected to have maternal fetal ABO blood incompatibility in Department of Obstetrics and Gynecology,Southwest Hospital,Third Military University were collected.Anti-A or anti-B IgG titers of them were detected at 28-30 gestational age,and umbilical cord blood were taken when delivery and hemolytic disease of the newborn serological test were done to diagnose hemolytic disease of the newborn (HDN).The relationship between the titers and incidence of fetal or neonatal hemolytic disease was retrospectively analyzed by Kendall tau rank correlation.Results No IgG of anti-A or anti-B in serum were found in 58.4％ (741/1269) pregnant women,while the antibody titer of 5.1％ (65/1269) pregnant women were more than or equal to 1 ∶ 128.When they were tested again at 36 gestational week,the titer of 17 cases increased twice but lower than 1 ∶ 512.No signs of intrauterine hemolysis,such as edema,ascites and pleural effusion,were found.Three hundred and eighty neonates (29.9％,380/1269) were diagnosed as HDN.Among which,12 cases (3.2％,12/380) showed mild anemia and (or) jaundice within 24 hours after delivery.There was positive correlation between incidence of neonatal hemolysis and antibody titer(Tb=-0.293,P＜0.01).The incidence of HDN increased from 85.4％ (35/41) in women with antibody titer of 1 ∶ 128 to 5/5 inwomen with antibody titer at 1 ∶ 512 (x2=108.906,P＜0.01).Among 380 HDN neonates,322 cases were transferred to neonatal intensive care unit for phototherapy based comprehensive therapy,and two underwent exchange transfusion.All patients were cured.Conclusions The intrauterine hemolysis incidence of patients with suspected maternal-fetal ABO blood incompatibility is very low,and no special care is required during pregnancy.Anti-A or anti-B tests during pregnancy is helpful in early diagnosis and management of HDN.

OBJECTIVE:To study the effect of penehyclidine on the level of cytokines in infants with congenital heart disease undergoing cardiopulmonary bypass(CPB).METHODS:A total of 60 children with congenital heart disease(CHD)were divided into three groups:Group P1(intramuscularly injected with penehyclidine before operation),Group P2(intramuscularly injected with penehyclidine before and after operation),and Group C(intramuscularly injected with atropine before operation).The levels of cytokine were determined at different time.Postoperative salivary secretion and X-ray of chest were observed.RESULTS:After CPB,the levels of the inflammatory cytokine in all the three groups were significantly higher,with those in Group P1 and P2 significantly lower than in Group C(P

Objective To investigate the relationships between baseline R2? of blood oxygenation level-dependent magnetic resonance imaging(BOLD-MRI) and Semi-quantitative parameters of dynamic contrast-enhanced magnetic resonance imaging(DCE-MRI) in cervical cancer,to lay a foundation for the further development of assessing tumor hypoxia techniques. Methods Twenty-four patients with cervical cancer were subjected to DCE-MRI and BOLD-MRI before treatment,Semi-quantitative parameters(SI-I、MER、Tmax、IAUC) of DCE-MRI and the baseline R2?of BOLD-MRI produced by special post-processing softwares,the relationships between baseline R2?of BOLD-MRI and Semi-quantitative parameters of DCE-MRI were analyzed. Results Significant positive correlations were observed between baseline R2?and Tmax(r=0.423,P=0.014),there were no correlation between baseline R2? and SI-I、MER or IAUC(P>0.05). Conclusion Semi-quantitative parameters of DCE-MRI and baseline R2? of BOLD-MRI respectively reflected the oxygenation of tumor in different principle. The combined use of the above parameters is expected to improve the performance for defining tumor hypoxia.

Objective: To determine the feasibility and safety of transvaginal natural orifice transluminal endoscopic surgery (vNOTES) in hysterectomy and sentinel lymph node (SLN) mapping for endometrial cancer by comparing its SLN detection rate and perioperative outcomes with those of laparoscopic staging. Methods: In this multicenter prospective cohort study, 68 patients with early endometrial cancer between 2020 and 2021 in 2 tertiary referral centers in China were grouped to vNOTES (n=33) or laparoscopy (n=35). All the patients underwent hysterectomy with SLN mapping. Results: The total successful SLN detection was 97.0% in the vNOTES group and 91.4% in the laparoscopy group (p=0.32), whereas the bilateral success rates were 81.8% and 80.0%, respectively (p=0.84). There was no difference in SLN detection observed between the 2 groups regarding the side-specific mapping efficacy quotient (89.4% vs 85.7%; p=0.05). The number of harvested SLNs, the location of SLNs, operative time, estimated blood loss, intraoperative and postoperative complications and hospital cost in the 2 groups were similar (p>0.05), but there were differences in the 2 groups; the one was postoperative exhaust time that was 18 vs. 21 hours (p=0.01), the other was median postoperative hospital stay which was 4 vs. 5 days (p=0.05). Conclusion This study suggests that lymph node mapping can be completed through the vNOTES procedure. It can ensure effective surgical staging and show the advantages of a fast recovery and good cosmetic effect.

Objective:To evaluate the feasibility of high resolution MRI for the measurement of anterior cartilaginous acetabulum-head-index (A-CAHI) and the value of A-CAHI for predicting hip clinical function after treatment in developmental dysplasia of the hip (DDH).Methods:The imaging data of 92 hips from 61 children with treated DDH were retrospectively reviewed in Shandong Medical Imaging Research Institute from January 2019 to January 2020. All children underwent conservative treatments or surgical interventions 3 years ago. Hip function after treatment was evaluated clinically based on the modified MacKay criteria. The hips were divided into satisfactory clinical function group (McKay rating excellent or good, n=46) and unsatisfactory group (McKay rating fair or poor, n=46). All patients were imaged with conventional MRI, high resolution fat suppressed proton density weighted image (FS-PDWI) of the unilateral hip joint in oblique sagittal view, and anteroposterior hip radiographs. A-CAHI and lateral cartilaginous acetabulum-head-index (L-CAHI) were measured respectively on high-resolution oblique sagittal PDWI and conventional coronal T 1WI. Acetabulum head index (AHI) was also measured on anteroposterior hip radiograph. Mann-Whitney U test or independent-samples t test was used to compare the difference of A-CAHI, L-CAHI and AHI between satisfactory and unsatisfactory clinical function groups. The diagnostic value using A-CAHI, L-CAHI, AHI, or A-CAHI combined with L-CAHI for unsatisfactory clinical function were investigated by the ROC curve. The area under the curve (AUC) and the Z statistic were used to compare diagnostic performance. Results:The values of A-CAHI, L-CAHI and AHI were significantly higher in satisfactory clinical function group compared with the unsatisfactory group ( Z=-7.746, -7.735, t=-7.199, all P<0.001).A-CAHI combined with L-CAHI had the significant highest diagnostic accuracy compared with A-CAHI, L-CAHI and AHI (AUC were 0.994, 0.969, 0.968, 0.861, respectively), with significant differences ( Z=1.975, 2.006, 3.553, P=0.048, 0.051,<0.001). The sensitivity and specificity of A-CAHI combined with L-CAHI for the diagnosis of prognosis were 95.7% and 97.8%, respectively. Conclusions:A-CAHI measured by high resolution MRI was found to have the highest diagnostic accuracy for prediction of hip clinical function in the treated DDH, and combined with L-CAHI can improve the diagnostic accuracy significantly.

Objective To use in vitro experiments to verify the changes of proliferation, senescence and apoptosis of hepatocellular carcinoma cells after inhibiting the expression of NEK7, and to explore the related molecular mechanism. Methods Western blot and RT-PCR were used to detect the expression of NEK7 in hepatocellular carcinoma cells and THLE-2 cells. A viral vector was designed to inhibit the expression of NEK7 based on the gene sequence. After hepatocellular carcinoma cells were transfected, we observed the changes of proliferation activity, cell senescence, cell apoptosis and cell cycle in vitro. Western blot was used to detect the expression of cell cycle-related factors. Results Compared with THLE-2 cells, NEK7 was highly expressed in hepatocellular carcinoma cells. After inhibiting the expression of NEK7 with shRNA, the proliferation of hepatocellular carcinoma cells was inhibited, the proportions of cell senescence and apoptosis were increased, meanwhile, the cell number in stage S and G₂/M was significantly reduced, the cell cycle progression was blocked, the expression levels of C-myc, c-Fos, cyclin D1 and cyclin E were inhibited, P16 and P27 expression were increased, and CDK2, CDK4 and CDK6 expression were not significantly changed. Conclusion After inhibiting the expression of NEK7, the proliferation ability of hepatocellular carcinoma cells is reduced, cell senescence is promoted and apoptosis is induced; meanwhile, the cell cycle progress is blocked.

【Objective】 To investigate the clinical characteristics, long-term follow-up rate, level and control rate of low-density lipoprotein cholesterol (LDL-C) in patients with atherosclerotic cardiovascular disease (ASCVD) aged ≥75 years who underwent percutaneous coronary intervention (PCI) during hospitalization. 【Methods】 We selected ASCVD patients aged ≥75 years with PCI from January 2016 to December 2020 in The First Affiliated Hospital of Xi’an Jiaotong University, collected the baseline data of the patients and the follow-up of 1 month, 3 months, 6 months and 12 months after discharge by HIS system, and analyzed their LDL-C and control rate at each follow-up. 【Results】 A total of 1 129 patients were enrolled in this study, aged 78 (ranging from 75 to 89) years. Among them 72.1% were male; myocardial infarction was the main type of ASCVD (71.5% ); hypertension was the most common risk factor, accounting for 85.2% (717/842), followed by diabetes, 58.6% (493/842); 74.6% met the ultra-high risk criteria of the 2020 Chinese Expert Consensus on Lipid Management in Ultra-High Risk ASCVD Patients, and the LDL-C control rate was only 8.1% . The four routine follow-up rates of 1 129 elderly ASCVD patients were 49.5%, 24.1%, 17.1%, and 24.6%, respectively. The detection rates of LDL-C during follow-up were 26.3%, 5.3%, 10.4%, and 13.8%, respectively. LDL-C control rates in ultra-high risk ASCVD were 59.4%, 45.1%, 37.1%, and 17.6%, respectively, while LDL-C control rates in non-ultra-high risk ASCVD patients were 67.3%, 55.6%, 47.4%, and 44.0%, respectively. 【Conclusion】 The elderly patients with ASCVD-PCI were mainly ultra-high risk patients. The routine follow-up rate and the LDL-C compliance rate during follow-up were low and showed a downward trend.

Objective:To evaluate the oncologic outcomes of different laparoscopic radical hysterectomy.Methods:From January 2011 to December 2014, the laparoscopic operation cases of cervical cancer at stage Ⅰb1, Ⅰb2, Ⅱa1 and Ⅱa2, including the histologic subtypes of squamous-cell carcinoma, adenocarcinoma and adenosquamous carcinoma, were collected in five clinical centers. The data were divided into two groups according to the surgical procedures, that is, modified laparoscopic-vaginal radical hysterectomy (mLVRH) and total laparoscopic radical hysterectomy (TLRH). The overall survival rate (OS), disease-free survival rate (DFS) at 5 years were retrospectively analyzed in this study.Results:There were 674 cases in total, including 377 cases of mLVRH, 297 cases of TLRH. (1) The OS at 5 years: the mLVRH was 96.1% and the TLRH was 92.0%, and the mLVRH was higher than that of TLRH （ P=0.010）. Stratify analysis， including stage of disease （Ⅰb1 and Ⅱa1）， histologic subtypes （squamous-cell carcinoma, adenocarcinoma）， lymph node metastasis， revealed that, ① Stage of disease: in stage Ⅰb1, the OS at five years of mLVRH was higher than that in TLRH group （98.6% vs 93.6%, P=0.012）. In stage Ⅱa1, there was significant difference between the two groups, the OS at five years of mLVRH and TLRH were 93.6% and 77.6% （ P=0.007）. ② Histologic subtypes: for the OS at five years of squamous-cell carcinoma, mLVRH and TLRH were 96.1% and 92.3%, and there was significant difference （ P=0.046）； for adenocarcinoma, the OS at five years were 91.0% and 88.6%， and there was no difference between two groups （ P=0.230）. ③ Lymph node metastasis： the mLVRH and TLRH with lymph node metastasis, the OS at five years were 98.6% and 96.4%; the mLVRH and TLRH without lymph node metastasis, the OS at five years were 89.3% and 80.8%. There were no significant differences between the two groups,respectively ( P=0.156， P=0.093）. (2) The DFS at 5 years: there was no significant difference between mLVRH and TLRH (94.1% vs 90.9%, P=0.220). Stratify analysis for stage of disease, the mLVRH group was higher than that in the TLRH group in stage Ⅰb1 (97.0% vs 92.8%, P=0.039). However, for stage Ⅱa1, there was no significant difference between mLVRH and TLRH group （88.2% vs 75.8%, P=0.074）. Conclusions:The results of this retrospective study indicated that different laparoscopy surgical procedures had diverse oncologic outcomes. The OS at 5 years of the mLVRH is superior to the TLRH. The DFS at 5 years in Ⅰb1 stage, the mLVRH is higher than the TLRH. Therefore, the modified laparoscopy is still an alternative surgery for early cervical cancer patients when following the principle of no-tumor-exposure.