1.Paeoniflorin Induces Apoptosis in NSCLC Cells via Activating Hippo Signaling Pathway
Yan LI ; Liang PENG ; Lifeng JIANG ; Sheng WANG ; Ge WANG ; Xiaolin YU ; Yulin YAO
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(12):39-44
ObjectiveTo observe the apoptosis induced by paeoniflorin (PF) in non-small cell lung cancer (NSCLC) cells and explore its mechanism. MethodCell counting kit-8 (CCK-8) was used to detect the inhibition rates of H1299, H292 and A549 cells with different concentrations of PF (2.5, 5, 10, 20, 25 µmol·L-1), and to screen suitable concentrations of PF and experimental cells. The inhibitory effect of PF on lung cancer cells was detected by clone formation assay. The effect of PF on cell apoptosis was detected by flow cytometry with annexin V-FITC/propidium iodide (PI) double staining. With the right concentration of drugs, levels of apoptosis-associated protein B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), cleaved Caspase-3 and Caspase-3 were detected by Western blot. At the same time, the molecular expressions of hypoxia inducible factor -1α (HIF-1α) and Hippo signaling pathway were determined. ResultCompared with the blank group, PF significantly inhibited the growth of H1299, H292 and A549 cells of human lung cancer (P<0.01). PF significantly induced apoptosis in A549 cells (P<0.01), decreased the Bcl-2/Bax ratio (P<0.01), and significantly increased the cleaved Caspase-3 expression (P<0.01). Compared with those in the blank group, the expression levels of HIF-1α, transcriptional coactivator with PDZ-binding motif (TAZ), large tumor suppressor 1 (LATS1), Mps one binding 1 (MOB1) and Yes-associated protein (YAP) in A549 cells of the PF treatment group were significantly decreased (P<0.01), while the expressions of p-LATS1, p-MOB1 and p-YAP were significantly increased (P<0.01). At the same time, there was no significant effect on the expression levels of phosphorylated mammalian Ste20-like kinase 1 (p-MST1) and MST1, which did not reach a statistical difference. ConclusionAll data demonstrated that PF showed an anti-tumor effect by improving hypoxic conditions and inhibiting the abnormally activated Hippo signaling pathway, thereby inducing and promoting apoptosis in non-small cell lung cancer.
2.High tibial osteotomy promotes cartilage regeneration in the treatment of knee osteoarthritis
Qiangchang FU ; Liming ZHENG ; Lifeng JIANG
Chinese Journal of Tissue Engineering Research 2024;28(32):5243-5248
BACKGROUND:For early knee osteoarthritis in which total knee arthroplasty fails to achieve satisfactory results,high tibial osteotomy that has been found to promote regeneration of damaged cartilage and alleviate symptoms in patients is considered a classic knee-preserving procedure. OBJECTIVE:To review and discuss the effectiveness,mechanism,and application prospects of high tibial osteotomy in stimulating cartilage regeneration in knee osteoarthritis and to provide a theoretical basis for the use of high tibial osteotomy in the treatment of knee osteoarthritis. METHODS:A computerized search was conducted in PubMed,Web of Science,CNKI and WanFang databases for relevant literature published from 2013 to 2023.The search terms used were"knee osteoarthritis,high tibial osteotomy,limb alignment,chondrocytes,biomechanics,intra-articular"in both English and Chinese.Finally,75 articles were included for review. RESULTS AND CONCLUSION:High tibial osteotomy correcting the lower limb alignment has been found to be effective in alleviating symptoms and potentially delaying or preventing the need for total knee arthroplasty.This is an important aspect of orthopedic step-down treatment in knee osteoarthritis.Maintaining a normal mechanical microenvironment is crucial for the proper functioning and maintenance of chondrocyte phenotype.Abnormal mechanical signals can be converted into intracellular chemical signals through mechanosensors like primary cilia,integrins,cytoskeleton and nucleoskeleton,resulting in disruptions to the balance of matrix metabolism and regulation of inflammatory responses.Chondrocytes after abnormal stress action still have the potential to revert to a normal phenotype under appropriate stress;correction of the mechanical microenvironment by high tibial osteotomy leads to spontaneous cartilage repair and remission of synovial inflammation.The combination of high tibial osteotomy and cartilage regeneration strategy holds promising prospects for patients with early knee osteoarthritis who are not candidates for total knee arthroplasty.
3.Current status and association analysis of sexual attitudes, sexual safety awareness and refusal skills among junior high school students in the suburbs of Shanghai
Dongmei ZHAO ; Yuyang CHEN ; Hong JIANG ; Haiqi WANG ; Lifeng ZHANG
Shanghai Journal of Preventive Medicine 2024;36(4):375-381
ObjectiveTo understand the acceptance of sex-related behaviors, sexual safety awareness, and refusal skills among junior high school students and conduct association analysis, and to provide a reference for the implementation of sex and reproductive health education for adolescents. MethodsA questionnaire survey related to knowledge of sexual and reproductive health was conducted among 478 students from two junior high schools in Jiading District, Shanghai. ResultsThe pass rate for sex and reproductive health knowledge among junior high school students was only 36.6%, with acceptance rates for dating, watching pornography, engaging in sexual behavior, pregnancy, and artificial abortion at 24.5%, 11.1%, 5.6%, 4.8%, and 5.9%, respectively. Binary logistic regression analysis showed that students who passed the sexual and reproductive health assessment had a significantly lower acceptance rate of sex-related behaviors than those who did not (aOR=1.666, 95%CI: 1.124‒2.470, P=0.011). Adolescents with a passing knowledge of sexual and reproductive health (aOR=1.607, 95%CI: 1.060‒2.438, P=0.026) or a lower acceptance of sex-related behaviors (aOR=4.199, 95%CI: 2.804‒6.289, P<0.001) had higher awareness of sexual safety. Adolescents with a passing knowledge of sexual and reproductive health (aOR=1.691, 95%CI: 1.066‒2.684, P=0.026), a lower acceptance of sex-related behaviors (aOR=1.756, 95%CI: 1.130‒2.729, P=0.012), or higher awareness of sexual safety (aOR=2.872, 95%CI: 1.826‒4.516, P<0.001) had stronger skills to refuse sex-related behaviors. ConclusionSexual and reproductive attitudes, sexual safety awareness, and refusal skills for sex-related behaviors among junior high school students in Jiading District need to be improved. Schools should focus on cultivating adolescents’ sexual and reproductive knowledge and related skills, and advocate for relevant institutions to provide appropriate sexual healthcare services to meet their needs for reproductive healthcare.
4.Adrenal cortical carcinoma in children: a clinicopathological analysis of 25 cases
Ruifen WANG ; Wenbin GUAN ; Lingxuan LI ; Meng QIAO ; Ruiqi JIANG ; Lifeng WANG
Chinese Journal of Pathology 2024;53(1):40-45
Objective:To investigate the clinicopathological features, diagnosis and differential diagnosis of adrenal cortical carcinoma (ACC) in children.Methods:Twenty-five children with ACC diagnosed in the Department of Pathology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China from March 2014 to August 2022 were retrospectively analyzed. The related literature was reviewed.Results:A total of 25 children with ACC were collected, including 11 males and 14 females, with a male to female ratio of 1.0∶1.3. The patient ages ranged from 8 months to 14 years (median, 4 years). Eighteen cases with clinical data had functional tumors (18/22, 81.8%) presenting with virilization or precocious puberty (15/18), symptoms related to hypercortisolism (8/18) or endocrine symptoms mixed with both (5/18), while 3 cases (3/22, 13.6%) had unknown clinical data. The clinical manifestations of four patients with nonfunctional tumors were an abdominal mass and/or abdominal pain, walking instability and others. Grossly, the average maximum diameter of the tumor was 9.4 cm. Most of the tumors were nodular and partially encapsuled. The cut surfaces were gray or gray brown, soft with hemorrhage. Histologically, the tumor cells were diffusely distributed, separated by a vascular-rich network. The tumor cells were large, with distinct nucleoli, abundant eosinophilic or clear cytoplasm, and round or oval nuclei. The mitotic index was high, and atypical mitoses were common. Necrosis, calcification, capsule invasion or/and venous invasion were present. In some cases, the tumor invaded the surrounding soft tissues or kidneys. Immunohistochemically, the tumor cells were diffusely positive for syn and SF1 and focally positive for α-inhibin, Melan A and Calretinin, but negative for CgA. Ki-67 proliferation index ranged from 2%-90%. TP53 gene status was examined in 7 cases, in which mutations were detected in 4 cases. Follow-up data was obtained in 21 patients, among whom 18 received chemotherapy and 3 received radiotherapy. Distant metastasis occurred in 13 patients. Median progression-free survival (PFS) was 11.2 months and median overall survival (OS) was 54.7 months. Patients aged less than 5 years had a better prognosis for OS ( P<0.05) than the older ones (≥5 years), but a similar PFS ( P>0.05). Male patients and Ki-67 proliferation index <15% had a better prognosis tendency for OS, but there was no statistically significant difference ( P>0.05). Conclusions:ACC in children is a rare, often functional tumor associated with Li-Fraumeni genetic syndrome and has a poor prognosis. Diagnosis and differential diagnosis require a combination of morphological, phenotypic and clinical analysis.
5.3D printed metal augment or tibial prosthesis for reconstruction of large bone defects in total knee arthroplasty and revision surgery
Pengfei HU ; Haobo WU ; Jisheng RAN ; Jiapeng BAO ; Lifeng JIANG ; Weiping CHEN ; Xiang ZHAO ; Shigui YAN ; Lidong WU
Chinese Journal of Orthopaedics 2024;44(4):243-249
Objective:To investigate the clinical efficacy of 3D printed metal augment or tibial prosthesis for reconstruction of large bone defects in total knee arthroplasty (TKA) and knee revision surgery.Methods:A total of 7 patients (7 knees) with TKA or knee revision who were admitted to the Department of Orthopaedics of the Second Affiliated Hospital of Zhejiang University School of Medicine with large bone defects from July 2018 to December 2023 were retrospectively analyzed, including 4 patients with TKA and 3 patients with knee revision. There were 3 males and 4 females, aged 58.7±7.6 years (range, 54-68 years), 3 patients with left knee and 4 patients with right knee. All the patients had bone defects in the knee joint (AORI type III), 2 cases had bone defects only in the femur, 4 cases had bone defects only in the tibia, and 1 case had bone defects in both the tibia and femur, which were treated with personalized reconstruction using 3D printing. Hip-knee-ankle angles, American Knee Society score (KSS) before and after surgery were compared, and postoperative complications were observed.Results:All patients successfully completed the operation, and the operation time was 189.3±35.5 min (range, 125-240 min). Complex TKA was performed in 4 cases with surgical times of 175, 195, 210, and 240 min, and revision surgery was performed in 3 cases with surgical times of 125, 180, and 200 min, respectively. Intraoperative blood loss was 114±24.4 ml (range, 100-150 ml). Five cases used 3D printed metal augment, and two used 3D printed one-piece tibial components. All patients were followed up for 2, 2, 5, 6, 7, 20, 57 months, respectively. The KSS of the five patients at 3 months postoperatively were 56, 61, 66, 56, and 56 points, respectively, greater than the preoperative scores of 35, 44, 36, 27, and 41 points. The KSS functional scores of the five patients at 3 months postoperatively were 45, 45, 45, 30, and 45 points, respectively, which were greater than the preoperative scores of 30, 30, 15, 20, and 20 points. The hip-knee-ankle angle was 181.8°±3.4° (range, 177.9° to 188.0°) at the final follow-up and 175.8°±12.4° (range, 153.3° to 192.1°) before surgery, with no significant difference ( t=-1.230, P=0.242). At the final follow-up, the 3D printed component was well integrated with the bone surface, the prosthesis was securely positioned, and the force lines of the lower limbs were normal. There were no postoperative complications such as poor wound healing, infection, fat liquefaction, nerve injury, deep vein thrombosis of lower limbs, knee joint stiffness, periprosthesis infection and loosening. Conclusion:Using 3D printed metal augment or tibial prosthesis to reconstruct the huge bone defect in TKA and revision has a satisfactory early clinical effect, satisfactory joint function and good surgical safety.
6.Analysis of utilization and influencing factors of preconception healthcare services among women expecting additional childbirth in Jiading District, Shanghai
Li CHENG ; Lifeng ZHANG ; Liandi SHEN ; Haiqi WANG ; Xianli GUO ; Bing LIU ; Shengrong FAN ; Hong JIANG
Shanghai Journal of Preventive Medicine 2024;36(8):783-788
ObjectiveTo understand the utilization of preconception healthcare services and the influencing factors among the women expecting additional childbirth in Jiading District, Shanghai, and to provide references for promoting the utilization of preconception healthcare services under the new population policy. MethodsA questionnaire survey on the utilization of preconception healthcare services and related influencing factors was carried out among 682 women expecting additional childbirth across six subdistricts in Jiading District, Shanghai. The results were statistically analyzed. ResultsThe average age of the women was (31.7±4.5) years, 30.2% of whom were ≥35 years old. The proportion of women having their third or subsequent children was low, at 16.4%. A significant majority, 92.4%, were found to have various risk factors during initial pregnancy screening. The utilization rate of preconception healthcare services among women seeking additional childbirth was relatively low at 26.7%. Awareness of the free preconception check-up program in Jiading District was also low at 28.6%, and the utilization rate for these services was even lower at 7.69%. Unplanned pregnancies were the primary reason for not utilizing preconception healthcare services, accounting for 63.6%. The results of multifactorial binary logistic regression analysis showed that the utilization rate of preconception healthcare services before the current pregnancy was higher for women aged between 35 and 39 compared to women aged ≤29 years old (OR=1.789, 95%CI: 1.033‒3.099). Women with planned pregnancies had a higher utilization of preconception healthcare services prior to this pregnancy (OR=4.164, 95%CI: 2.627‒6.602). Women who had received preconception care prior to their first birth had a higher utilization rate of preconception care prior to the current pregnancy (OR=7.534, 95%CI: 4.954‒11.456). Women without a family history of chronic diseases had a higher utilization rate of preconception healthcare services (OR=1.903, 95%CI: 1.083‒3.345). ConclusionUnder the context of three-child policy, the proportion of women seeking three or more children in Jiading District is low. Most of these women have risk factors identified during initial pregnancy screenings. The utilization rate of preconception healthcare services and the awareness of the free preconception screening program in Jiading District are both low. Unplanned pregnancies remain the primary reason for failing to receive timely preconception healthcare services. Age, whether the pregnancy was planned, whether the women had received preconception healthcare services before their first baby and family history of chronic diseases are the main factors affecting the utilization of preconception healthcare services. Relevant departments should enhance the promotion of preconception healthcare service programs, especially for women of childbearing age who have not yet given birth, so as to improve the utilization rate of preconception health care services.
7.Early Identification and Successful Thrombectomy in a Patient With Acute Cerebral Infarction Following Transcatheter Aortic Valve Replacement
Fei YUAN ; Qiang LI ; Xinmin LIU ; Lifeng WANG ; Jing YAO ; Taiyang LUO ; Zhengming JIANG ; Guangyuan SONG
Chinese Circulation Journal 2024;39(8):813-815
Transcatheter aortic valve replacement(TAVR)is one of the most important guideline-recommended procedures for severe symptomatic aortic stenosis.Acute cerebral infarction is a serious complication after TAVR,with a high incidence rate and may significantly affect patient prognosis and quality of life.Thrombolysis and mechanical thrombectomy are standard treatments for acute cerebral infarction recommended by guidelines,but evidence of their efficacy and safety in patients undergoing TAVR is limited.We report a patient with acute cerebral infarction after TAVR,who were treated with emergency cerebral angiography and successful transcatheter thrombectomy.
8.Association between preconception oral microbiome and fetal overgrowth
Qiuli XIAO ; Xushan CAI ; Lifeng ZHANG ; Fengyun YANG ; Xingying LI ; An CHEN ; Huajun ZHENG ; Hong JIANG
Chinese Journal of Perinatal Medicine 2024;27(6):457-467
Objective:To analyze the association between the pre-pregnancy oral microbiota of women and fetal overgrowth, and the possible mechanisms involved.Methods:A nested case-control study design based on a pre-pregnancy cohort was used to select 51 mothers who delivered macrosomia and/or large-for-gestational-age (LGA) infants from the population recruited at the Maternal and Child Health Care Hospital of Jiading District in Shanghai from October 2016 to December 2021 as the case group. A control group was formed by selecting 204 mothers who delivered infants with normal birth weight and appropriate for gestational age during the same period, in a 1:4 ratio. The LGA subgroup consisted of 48 mothers who delivered LGA infants from the total population, and a corresponding control group of 192 was randomly selected from the remaining mothers who delivered non-LGA infants in a 1∶4 ratio for the LGA subgroup analysis. The 16S rRNA gene sequencing technique was utilized to detect pre-pregnancy saliva samples to compare the characteristics of the oral microbiota, differential microorganisms, and differential functional pathways between groups. Nonparametric Wilcoxon rank-sum tests, two independent samples t-tests, or Chi-square (or Fisher's exact) tests were used for statistical analysis. Factor analysis was conducted on the pre-pregnancy diet data of women, and the primary dietary pattern of each study subject was identified based on the highest score of the dietary pattern factors. For microbiota count data, α and β diversity indices were calculated using R and QIIME2 software, and the corresponding microbiota functional count data were acquired through PICRUSt2. Results:(1) General data: There was no significant difference in the time interval from pre-pregnancy sampling to pregnancy and from sampling to delivery between the two groups. In the case group, there were three cases of macrosomia and 48 cases (94.1%) of LGA. The corresponding control group for the LGA subgroup consisted of 192 cases. There were no significant differences in dietary patterns between the case group and the control group. (2) α diversity analysis: The species richness index of the case group was lower than that of the control group [(367.27±84.57) vs. (408.71±93.08), multivariate analysis, P=0.009], while no significant differences were found between the two groups in the Shannon and Simpson indices; the species richness index of the LGA subgroup was also lower than that of the corresponding control group [(371.04±83.92) vs. (408.04±94.21), multivariate analysis, P=0.033], with no significant differences in the Shannon and Simpson indices. (3) β diversity analysis: There was a statistically significant difference in the unweighted UniFrac distance of the oral microbiota between the case group and the control group ( R2=0.006, F=1.479, P=0.048). No significant differences were found in the β diversity indices of the oral microbiota between the LGA subgroup and the corresponding control group. (4) Differential microbiota analysis: There were 14 differential microbiotas from phylum to genus between the case group and the control group. At the genus level, members of the G1 genus of the Streptococcaceae were enriched in the case group, while the Lautropia, Dialister, Leptotrichia, and Rothia were enriched in the control group. In the LGA subgroup and its corresponding control group, there were 14 differential microbiota from phylum to genus; at the genus level, Leptotrichia, Rothia, G6 genus of the Saccharibacteria, and Selenomonas were enriched in the control group (all LDA value>2, and all P<0.05). (5) Differential functional analysis: In the case group, metabolic pathways such as nicotinate degradation [log 2 fold change ( FC)=3.510, q=0.005], de novo synthesis of pyrimidine nucleotides (log 2FC=0.078, q=0.005), and L-tyrosine degradation pathway (log 2FC=0.710, q=0.034) were enriched in the oral microbiota of women. In the LGA subgroup, compared to the corresponding control group, metabolic pathways related to nicotinate degradation were enriched in the oral microbiota (log 2FC=3.660, q=0.012). Conclusions:There are differences in the structure of the pre-pregnancy oral microbiota of mothers with overgrown fetuses compared to those with normally grown fetuses, and mothers of normally grown fetuses show higher diversity in their pre-pregnancy oral microbiota. The enrichment of certain pathogenic bacteria and the reduction of symbiotic bacteria in the pre-pregnancy oral microbiota are associated with fetal overgrowth, and this association may be mediated by functional pathways such as nicotinate degradation.
9.Conceptual analysis of ICU cognitive impairment: a literature review
Lu XU ; Zhixia JIANG ; Xingsong HE ; Fang CHEN ; Lifeng HE ; Yuan LI ; Linlin YOU ; Xin LU ; Xiaoling YANG
Chinese Journal of Practical Nursing 2023;39(8):631-636
Objective:To clarify the operational definition of ICU cognitive impairment, so as to provide a reference for accurate assessment of ICU cognitive impairment.Methods:ICU cognitive impairment was conceptually analyzed by the conceptual analysis framework in the Construction Strategy of Nursing Theory (Fifth Edition). The studies about cognitive function of critical illness patients in PubMed, Web of Science, Embase, China National Knowledge Internet, Wanfang, Chinese Biomedical Database, and VIP were searched. The search time limit was from the establishment of the database to August 2021. Literature screening and data extraction were performed independently by two researchers.Results:A total of 5 754 articles were obtained, and 48 articles were finally included. Obtained 20 concepts and 9 commonly used assessment tools related to ICU cognitive impairment. Identifying the defining attributes, conceptual causes, and outcomes of ICU cognitive impairment.Conclusions:The operational definition of ICU cognitive impairment is determined, which is conducive to a comprehensive and intuitive understanding of the concept of cognitive impairment in ICU and accurate evaluation of cognitive impairment in ICU.
10.Study on the application and effect of adjustable mirabilite external vest in severe acute pancreatitis
Lifeng JIANG ; Ping HAO ; Lei XU ; Yongping SHAO ; Wenqi SUN ; Lingfeng YAO ; Yan LIU
Chinese Journal of Practical Nursing 2023;39(26):2039-2043
Objective:To investigate the clinical effect of homemade adjustable mirabilite vest in patients with severe acute pancreatitis and supply reference for clinical nursing.Methods:This was a randomized controlled study. One hundred patients with acute severe pancreatitis admitted to Putuo Hospital, Shanghai University of Traditional Chinese Medicine from January 2021 to June 2022 were selected, and were divided into the pocket group and the vest group according to the order of admission with 50 cases in each group. The pocket group used traditional mirabilite bag for external application, the vest group used adjustable mirabilite vest for external application. The other treatment measures were the same for both two group. The comfort degree, itching severity and average length of hospital stay of these two groups were compared.Results:The basic data of the two groups were homogeneous. The difference were not statistically significant( P>0.05). After intervention, the comfort degree of the pocket group was (65.90 ± 7.95) points while the comfort degree of the vest group was (77.04 ± 5.96) points. The difference was statistically significant ( t = 7.93, P<0.01). The degree of pruritus was (12.72 ± 3.95) points in the pocket group and (8.00 ± 1.20) points in the vest group.The difference was statistically significant ( t = 8.08, P<0.05). The mean length of hospital stay in the pocket group was (15.86 ± 5.83) days and (11.02 ± 3.38) days in the vest group. The difference was statistically significant ( t = 5.08, P<0.01). Conclusions:When using topical mirabilite for patients with acute severe pancreatitis, the use of adjustable mirabilite vest can significantly improve patients′ comfort, reduce itching, and reduce the number of hospital days, which has the value of promotion and use.

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