1.Association of parenting style with emotional and behavioral problems in preschool children
LIANG Xi, LI Ruoyu, FANG Jiao, WANG Xiaoyan, WANG Yuhui
Chinese Journal of School Health 2025;46(9):1266-1271
		                        		
		                        			Objective:
		                        			To explore the effects of parenting style on emotional and behavioral problems (EBPs) of preschool children and to provide theoretical reference for promoting children s physical and mental health.
		                        		
		                        			Methods:
		                        			In October-November 2021, a stratified cluster random sampling method was adopted to select 3 575 preschool children aged 3-6 years from 12 kindergartens in Hefei. Data on parenting styles and children s EBPs were collected through electronic questionnaires. Binary Logistic regression model was used to explore the effects of parenting styles on children s EBPs.
		                        		
		                        			Results:
		                        			The detection rates of emotional symptoms, conduct problems, hyperactivity, peer interaction problems, and prosocial behavior problems were 15.5% ( n =554), 23.2% ( n =830), 22.4% ( n =802), 38.2% ( n =1 367), and 29.5% ( n =1 055) in preschool children, respectively. Binary Logistic regression analysis showed that after adjusting for covariates such as child s age, sex, and preterm birth, a high authoritative parenting style reduced the risk of EBPs in children ( OR =0.29-0.78), while a high authoritarian ( OR =1.36-2.15) and high permissive ( OR =1.36-1.68) parenting style in mothers increased the risk of EBPs in children (all  P <0.05). Further stratified analysis indicated that among children with fathers exhibiting high authoritative, high authoritarian, or high permissive parenting styles, a high authoritative parenting style in mothers reduced the risk of peer interaction problems and prosocial behavior problems ( OR =0.51,  0.30 ; 0.44, 0.23; 0.51, 0.29, all  P <0.05). Among children with fathers exhibiting a high authoritative parenting style, a high authoritarian parenting style in mothers increased the risk of emotional problems ( OR =2.59), and both high authoritarian and high permissive parenting styles in mothers increased the risk of conduct problems ( OR =3.25, 2.09) and hyperactivity problems ( OR =2.35, 2.87) (all  P <0.05). Among children with fathers exhibiting high authoritarian or high permissive parenting styles, a high authoritarian parenting style in mothers increased the risk of EBPs ( OR =1.65-2.71, 1.62-2.52, all  P <0.05).
		                        		
		                        			Conclusion
		                        			Parenting style is an important factor affecting EBPs of preschool children, and appropriate parenting style is beneficial for children s psychological development.
		                        		
		                        		
		                        		
		                        	
2.Noninvasive Diagnostic Technique for Nonalcoholic Fatty Liver Disease Based on Features of Tongue Images.
Rong-Rui WANG ; Jia-Liang CHEN ; Shao-Jie DUAN ; Ying-Xi LU ; Ping CHEN ; Yuan-Chen ZHOU ; Shu-Kun YAO
Chinese journal of integrative medicine 2024;30(3):203-212
		                        		
		                        			OBJECTIVE:
		                        			To investigate a new noninvasive diagnostic model for nonalcoholic fatty liver disease (NAFLD) based on features of tongue images.
		                        		
		                        			METHODS:
		                        			Healthy controls and volunteers confirmed to have NAFLD by liver ultrasound were recruited from China-Japan Friendship Hospital between September 2018 and May 2019, then the anthropometric indexes and sampled tongue images were measured. The tongue images were labeled by features, based on a brief protocol, without knowing any other clinical data, after a series of corrections and data cleaning. The algorithm was trained on images using labels and several anthropometric indexes for inputs, utilizing machine learning technology. Finally, a logistic regression algorithm and a decision tree model were constructed as 2 diagnostic models for NAFLD.
		                        		
		                        			RESULTS:
		                        			A total of 720 subjects were enrolled in this study, including 432 patients with NAFLD and 288 healthy volunteers. Of them, 482 were randomly allocated into the training set and 238 into the validation set. The diagnostic model based on logistic regression exhibited excellent performance: in validation set, it achieved an accuracy of 86.98%, sensitivity of 91.43%, and specificity of 80.61%; with an area under the curve (AUC) of 0.93 [95% confidence interval (CI) 0.68-0.98]. The decision tree model achieved an accuracy of 81.09%, sensitivity of 91.43%, and specificity of 66.33%; with an AUC of 0.89 (95% CI 0.66-0.92) in validation set.
		                        		
		                        			CONCLUSIONS
		                        			The features of tongue images were associated with NAFLD. Both the 2 diagnostic models, which would be convenient, noninvasive, lightweight, rapid, and inexpensive technical references for early screening, can accurately distinguish NAFLD and are worth further study.
		                        		
		                        		
		                        		
		                        			Humans
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		                        			Non-alcoholic Fatty Liver Disease/diagnostic imaging*
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		                        			Ultrasonography
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		                        			Anthropometry
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		                        			Algorithms
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		                        			China
		                        			
		                        		
		                        	
3.Clinical characteristics of acute acquired concomitant esotropia among different age groups
Shuting LIANG ; Qingyu MENG ; Zequn MIAO ; Lili GUO ; Xi WU ; Lejin WANG
International Eye Science 2024;24(3):427-431
		                        		
		                        			
		                        			 AIM: To analyze the clinical characteristics of acute acquired concomitant esotropia(AACE)in patients among different age groups.METHODS: Retrospective analysis of clinical data. A total of 112 non-Swan type AACE patients who underwent surgery at Peking University People's Hospital from January 2015 to December 2022 were retrospectively analyzed. Clinical data were collected and the characteristics were compared, including gender, age, diopter, duration of disease, daily time spent on near work, angles of deviation before and after surgery, stereopsis, etc. According to age, patients were divided into three groups: <18 years old group(22 cases), 18-45 years old group(67 cases), and >45 years old group(23 cases). The clinical characteristics of patients were compared in each group.RESULTS: A total of 112 patients were included in the study, comprising 56 males and 56 females, with a median age of 29.50(19.25, 41.75)years old. Among them, 97 patients had myopia(86.6%). There were 93 patients(83.0%)who spent more than 8 h on near work. The age group <18 years old had the shortest duration before surgery, with a median time of 1.00(0.50, 1.00)a, the minimum negative diopter, with a median diopter of -0.75(-3.19, -0.56)D in the right eye and the diopter of -1.25(-2.81, -0.75)D in the left eye, and the maximum preoperative near angle of deviation, with a median angle of 30.00(18.50, 80.00)PD, and the maximum preoperative distant angle of deviation, with a median angle of 35.00(23.75, 80.00)PD. All these differences were statistically significant compared with other two groups(both P<0.05). For the age group from 18 to 45 years old, the median near angle of deviation was 20.00(14.00, 30.00)PD, and the median distant angle of deviation was 25.00(20.00, 35.00)PD, both of which were higher than those in the age group >45 years old(both P<0.05). For the age group >45 years old, the median near angle of deviation after surgery was -4.50(-7.50, 0)PD, and the median distant angle of deviation after surgery was 4.50(0, 9.50)PD, which were smaller than those in other two groups(all P<0.05). The age group >45 years old had the hiughest surgical success rate(100%). The preoperative stereopsis was better in age group >45 years old than the group <18 years old(P<0.05). The postoperative stereopsis of the age group of 18 to 45 years old and the age group >45 years old was better than age group <18 years old(both P<0.05).CONCLUSION: Surgical patients with AACE are mainly in the age group from 18 to 45 years old. The characteristic of angle of deviation is that distant angle of deviation is greater than near angle of deviation. The patients <18 years old have larger preoperative angles of deviation than adults, while their stereoacuity is worse than adults in the early postoperative period. It is recommended that augmented-dose surgery should be performed in AACE patients who are in the age group of 18 to 45 years old(5-10 PD). A conservative surgery should be designed for hyperopia young children without established binocular vision. 
		                        		
		                        		
		                        		
		                        	
4.Impact of pembrolizumab combined with chemotherapy on angiogenesis and circulating endothelial cells in patients with advanced non-small cell lung cancer
Xi JIANG ; Yongcun WU ; Yan LIANG ; Li CHU ; Yingxin DUAN ; Lijun WANG ; Junjie HUO
Journal of International Oncology 2024;51(2):89-94
		                        		
		                        			
		                        			Objective:To explore the impact of pembrolizumab combined with chemotherapy on angiogenesis and circulating endothelial cells in patients with advanced non-small cell lung cancer (NSCLC) .Methods:The retrospective analysis of clinical data from 121 patients diagnosed with advanced NSCLC who were admitted to the Second Affiliated Hospital of Xingtai Medical College from August 2021 to January 2023 was conducted. These patients were divided into a control group ( n=57) and an observation group ( n=64) based on the designated treatment protocol. Specifically, individuals in the control group received standard chemotherapy (cisplatin+paclitaxel), while those in the observation group underwent penpilimab therapy in conjunction with conventional chemotherapy. The comparative assessment encompassed short-term clinical efficacy, quality of life, immune function parameters, angiogenic factors [including endostatin, insulin-like growth factor 1 (IGF-1), and vascular endothelial growth factor (VEGF) ], circulating endothelial cells, and adverse reactions within the two groups. Results:After 6 courses of treatment, the objective response rate [67.19% (43/64) vs. 49.12% (28/57) ] and disease control rate [87.50% (56/64) vs. 70.18% (40/57) ] in observation group were higher than those in control group, with statistically significant differences ( χ2=4.06, P=0.044; χ2=5.52, P=0.019). The quality of life score of observation group [ (56.77±6.81) points] was significantly higher than that of control group [ (47.73±8.23) points], with a statistically significant difference ( t=6.61, P<0.001) ; The T cell subgroup CD3 + levels [ (63.59±9.00) % vs. (53.06±8.80%), t=6.49, P<0.001], CD4 + levels [ (46.54±8.20) % vs. (30.74±7.32) %, t=11.13, P<0.001] and CD4 +/CD8 + ratio (1.90±0.36 vs. 1.21±0.28, t=11.66, P<0.001) in observation group were significantly higher than those in control group, with statistically significant differences; Endostatin in observation group [ (48.99±3.43) μmol/L] was significantly higher than that in control group [ (31.35±3.87) μmol/L], with a statistically significant difference ( t=26.58, P<0.001), IGF-1 [ (102.31±20.35) μg/L vs. (134.98±19.02) μg/L] and VEGF [ (31.70±4.32) pg/ml vs. (58.71±5.99) pg/ml] were significantly lower in observation group than those in control group, with statistically significant differences ( t=18.73, P<0.001; t=28.14, P<0.001). The number of circulating endothelial cells in observation group [ (58.77±10.03) /ml] was significantly lower than that in control group [ (87.01±8.01) /ml], with a statistically significant difference ( t=17.20, P<0.001). During treatment, there were no statistically significant differences in the incidence of gastrointestinal reaction ( χ2=0.01, P=0.908), leukopenia ( χ2=0.64, P=0.424), thrombocytopenia ( χ2=0.28, P=0.597), anemia ( χ2=1.66, P=0.197), nephrotoxicity ( χ2=0.64, P=0.424), skin rash ( χ2=1.33, P=0.249) between the two groups. Conclusion:The combination therapy of pembrolizumab and chemotherapy for the treatment of advanced NSCLC has demonstrated noteworthy effectiveness. This regimen has the potential to enhance patients' immune functionality, ameliorate their overall quality of life, suppress angiogenesis, and exhibits a commendable profile of safety and reliability.
		                        		
		                        		
		                        		
		                        	
5.Application of the excellent doctor-oriented teaching evaluation method in the clinical teaching of dermatology and venereology
Ting LIU ; Ruimin JIANG ; Yujuan WANG ; Xi DUAN ; Jia HE ; Jie CHEN ; Liang LIU
Chinese Journal of Medical Education Research 2024;23(3):391-396
		                        		
		                        			
		                        			Objective:To investigate the application value of the teaching evaluation method guided by cultivating "excellent doctors" in the clinical teaching of dermatology and venereology.Methods:A non-simultaneous control study was conducted, and the medical students who received theoretical learning and clinical internship in Department of Dermatology and Venereology, Affiliated Hospital of North Sichuan Medical College, from March 2020 to February 2022, were enrolled as subjects. According to the order of enrollment, 32 students who were enrolled from March 2020 to February 2021 were set up as control group, and 31 students who were enrolled from March 2021 to February 2022 were set up as experimental group. The students in the control group received lecture-based learning, and those in the experimental group received clinical teaching using a teaching and evaluation method guided by cultivating "excellent doctors". After the course ended, the two groups were compared in terms of the scores of theoretical knowledge and operation skills, clinical thinking ability [Self-Assessment of Clinical Reasoning and Reflection (SACRR)], core competence [Mini-Clinical Evaluation Exercise (Mini CEX)], and degree of satisfaction with teaching. SPSS 25.0 software was used to perform the independent samples t-test, the Mann-Whitney U test, the chi-square test, and the rank sum test. Results:One student in the control group voluntarily withdrew from the study, and one student in the experimental group did not complete the contents of internship. Finally, 31 students in the control group and 30 in the experimental group were included in the study. After 4 weeks of internship, compared with the control group, the experimental group had significantly higher scores of theoretical knowledge (88.00±4.30 vs. 85.71±4.12, t=2.12, P=0.040) and operation skills (91.87±3.99 vs. 88.23±3.84, t=3.63, P<0.05). After 4 weeks of internship, compared with the control group, the experimental group had significantly higher information systematization score (47.23±3.11 vs. 45.16±3.00), analysis problem score (34.87±2.30 vs. 31.29±2.30), truth finding score (16.30±1.49 vs. 14.45±1.52), reflective ability score [3.50 (3.00, 4.00) vs. 3.00 (3.00, 3.00)], and total score of SACRR (101.87±4.47 vs. 93.90±4.47), with significant differences between the two groups ( t/ Z=2.65, 6.17, 4.79, 3.15, and 6.96, all P<0.05). After 4 weeks of internship, the experimental group had a significantly better core competence than the control group ( Z=2.12, P=0.030); compared with the control group, the experimental group had significantly higher classroom teaching score (20.17±1.98 vs. 18.45±2.23, t=3.17, P<0.05), clinical practice score (19.83±2.10 vs. 17.65±2.17, t=4.00, P<0.05), learning plan score (18.63±2.24 vs. 17.03±2.15, t=2.85, P<0.05), teaching resource score (20.07±1.82 vs. 18.58±2.00, t=3.04, P<0.05) and total score (78.70±3.67 vs. 71.71±4.13, t=6.98, P<0.05). Conclusions:The application of the teaching and evaluation method guided by cultivating "excellent doctors" in the clinical teaching of dermatology and venereology can improve clinical theoretical knowledge, practical operation skills, clinical thinking ability, and core ability among interns and thus help to improve teaching quality. Therefore, it holds promise for clinical application.
		                        		
		                        		
		                        		
		                        	
6.The value of the modified 5-factor frailty index in assessing postoperative complications and mortality in elderly patients with hip fractures
Zongyan XIE ; Shuyu ZHANG ; Xuhong WANG ; Junrong GUO ; Jian XI ; Feifei ZHAO ; Lu JIN ; Liang LIU
Chinese Journal of Geriatrics 2024;43(1):50-55
		                        		
		                        			
		                        			Objective:To analyze the value of the modified 5-factor frailty index in assessing postoperative complications and mortality in elderly hip fracture patients.Methods:In this retrospective study, clinical data were collected of hip fracture patients aged 60 years and above surgically treated at Beijing Luhe Hospital affiliated to Capital Medical University between January 2015 and December 2019.Patients' group assignment was based on whether the modified frailty index score was ≤1 or ≥2, and a post-surgery follow-up was conducted for survival at 30 days, 1 year, 2 years, and 4 years, which was analyzed by the Kaplan-Meier method.Multivariate Cox regression analysis was used to identify factors affecting death in elderly patients.Results:A total of 1 208 patients were included, with 890 in the group with the index score ≤1 and 318 in the group with the index score ≥2.There was no difference in mortality at 30 days(1.6% or 14/890 vs.1.9% or 6/318, P=0.707), 1-year(11.3% or 99/874 vs.11.6% or 36/310, P=0.917), 2-years(19.7% or 168/852 vs.24.3% or 73/300, P=0.099)and 4-years(44.0% or 238/541 vs.51.5% or 106/206, P=0.071). The incidence of postoperative complications in the group with the score ≥2 was higher(14.8% or 47/318 vs.9.7% or 86/890, P=0.012), including the incidence of stroke(6.3% or 20/318 vs.1.8% or 16/890, P<0.001)and the incidence of postoperative pneumonia(6.0% or 19/318 vs.3.1% or 28/890, P=0.029), and the differences were statistically significant.Multivariate Cox regression analysis showed that age, being female, the Charlson comorbidity index score and low hemoglobin at admission were risk factors for 1-year, 2-year and 4-year mortality post-surgery(all P<0.05), while the modified frailty index score had no correlation with postoperative mortality. Conclusions:A modified frailty index ≥2 is predictive of increased risk of postoperative pneumonia and stroke in patients with hip fractures, but is not correlated with the risk of postoperative mortality.
		                        		
		                        		
		                        		
		                        	
7.Therapeutic effect and mechanism of piracetam for the treatment of spinal cord injury in rats through MAPK path-way
Bo DONG ; Yue LI ; Ying-Chun LI ; Tong WANG ; Zhuang LIANG ; Xi-Jing HE
China Journal of Orthopaedics and Traumatology 2024;37(6):591-598
		                        		
		                        			
		                        			Objective To explore mechanism of piracetam for the treatment of spinal cord injury in rats through mitogen-activated protein kinase(MAPK)pathway.Methods Fifty-four healthy 6-week-old SD female rats with body weight of 80 to 100 g were divided into sham operation group,spinal cord injury group and piracetam group by random number table method,with 18 rats in each group.Spinal cord injury model was established in spinal cord injury group and piracetam group using percussion apparatus,while sham operation group did not damage spinal cord.Piracetam group was injected with pirac-etam injection through tail vein according to 5 ml·kg-1 standard,once a day for 3 days;the other two groups were injected with normal saline at the same dose,the same frequency and the same duration.The rats were sacrificed at 1,3,and 7 days after surgery,and changes of Basso,Beattie and Bresnahan(BBB)locomotor rating scale was observed and compared.Enzyme-linked immunosorbent assay(ELISA)was used to detect spinal cord inflammatory factors,such as interleukin-6(IL-6),in-terleukin-10(IL-10),interleukin-1β(interleukin-1β),necrosis factor-α(IL-1β)and tumor necrosis factor-α(TNF-α);HE staining was used to observe morphological changes of rats with spinal cord injury,and immunohistochemistry was used to observe expression level of aquaporin 4(AQP4).The activation of MAPK signaling pathway in spinal cord of rats after spinal cord injury was observed by western blotting(WB).Results BBB scores of sham operation group on 1,3 and 7 day were 21 points.In spinal cord injury group,the scores were(1±1),(4±1)and(7±2);piracetam group was(1±1),(5±1),(9±2),re-spectively;the difference between spinal cord injury group and sham operation group was statistically significant(P<0.05).HE staining showed that no abnormality was found in sham operation group.In spinal cord injury group,bleeding and degeneration of spinal cord tissue appeared at 1 day after operation;flaky necrotic areas were appeared in spinal cord at 3 days after surgery,and spinal cord tissue began to slowly repair at 7 days after surgery.In piracetam group,the bleeding area was less than that of spinal cord injury group at 1 day after surgery;at 3 days after operation,the necrotic area was reduced and the range of nuclear disappearance was reduced;and the spinal cord began to recover slowly at 7 days after surgery.AQP4 staining of spinal cord of rats in sham operation group was weak at 1,3 and 7 days after modeling,AQP4 staining was deepened and area increased in spinal cord injury group,AQP4 staining of piracetam group was lighter than that of spinal cord injury group,and the positive cells were slightly increased and the staining was slightly darker than that of sham operation group.At 1,3 and 7 days,the level of IL-6,IL-10,IL-1β and TNF-α in spinal cord injury group were higher than those in sham operation group and piracetam group(P<0.05).Compared with spinal cord injury group,the area of spinal cord bleeding and necrosis were de-creased by HE staining in piracetam group,and AQP4 staining was decreased by immunohistochemistry.WB results showed that P-ERK,P-JNK and P-P38 levels in spinal cord injury group at 3 days were higher than those in sham operation group and piracetam group(P<0.05).Conclusion Piracetam not only showed significant effect in promoting motor function recovery after spinal cord injury,but also showed positive therapeutic potential in reducing lesion area,regulating AQP4 expression to reduce edema,and reducing inflammatory response by regulating MAPK signaling pathway.
		                        		
		                        		
		                        		
		                        	
8.Structure-activity Omics on Anti-inflammatory and Analgesic Effect of Bupleuri Radix in Qizhi Weitong Granules
Xi LUO ; Bing QI ; Ying MENG ; Xinpeng QIN ; Yongrui BAO ; Tianjiao LI ; Liang WANG ; Shuai WANG ; Xiansheng MENG
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(15):146-153
		                        		
		                        			
		                        			ObjectiveTo identify the pharmacodynamic substances for the anti-inflammatory and analgesic effects of Bupleuri Radix by structure-activity omics. MethodA mouse model of pain was established with formaldehyde to examine the anti-inflammatory and analgesic effects of saikosaponins in vivo. The core targets of the active components in Bupleurum Radix for the anti-inflammatory and analgesic effects were screened from the Traditional Chinese Medicine Systems Pharmacology Database and Analysis Platform (TCMSP), Online Mendelian Inheritance in Man (OMIM), and Search Tool for Recurring Instances of Neighbouring Genes (STRING). The key core targets with high binding affinity were screened based on the comprehensive score in the molecular docking between different types of saikosaponins and core targets. The structure-activity relationship was discussed and analyzed based on the binding of compounds to pharmacodynamic targets. ResultSaikosaponins alleviated the foot swelling induced by formaldehyde and reduced the content of prostaglandin E2 (PGE2) in the mouse model, showcasing a significant inhibitory effect on the inflammatory pain caused by PGE2. Nine components and 39 targets of saikosaponins, as well as 3 074 targets of anti-inflammatory and analgesic effects were screened out, and 22 common targets shared by saikosaponins and the effects were obtained as the direct targets. The protein-protein interaction (PPI) analysis showed that the main active components of Bupleurum Radix were saikosaponins a, b1, b2, b3, c, d, e, f, and v, and the key targets were fms-related receptor tyrosine kinase 1 (FLT1), kinase insert domain receptor (KDR), fibroblast growth factor 2 (FGF2), vascular endothelial growth factor A (VEGFA), and signal transducer and activator of transcription 3 (STAT3). Molecular docking between saikosaponins and the top 5 targets with high degrees in PPI network analysis revealed 25 highly active docks, including 6 docks with scores of 5-6 and 18 docks with scores above 6. ConclusionThis study adopted structural-activity omics to analyze the material basis for the anti-inflammatory and analgesic effects of Bupleuri Radix in vivo, providing new ideas and methods for identifying the pharmacodynamic substances in traditional Chinese medicine. 
		                        		
		                        		
		                        		
		                        	
9.Association of sexual development characteristics and phases with the cognitive and behavioral development of adolescents aged 10 to 14 in rural areas of Shaanxi Province
Liang WANG ; Yingze ZHU ; Qi QI ; Zhonghai ZHU ; Lingxia ZENG
Chinese Journal of Child Health Care 2024;32(1):10-15
		                        		
		                        			
		                        			【Objective】 To analyze the association of sexual development characteristics and phases with the cognitive and behavioral development of adolescents aged 10 to 14 in rural areas of Shaanxi Province, in order to provide scientific reference for enhancing adolescent health. 【Methods】 The study population was selected from a birth cohort study′s follow-up data for the adolescent phase. The Tanner quintile method was used to assess sexual development, the Wechsler Intelligence Scale for Children, Fourth Edition (WISC-Ⅳ) was used to assess cognitive development, and the Youth Self-Rating Scale(YSR-2001) was used to assess behavioral development. Generalized linear models was used to examine the association of the stages of adolescent sexual development with their cognitive and behavioral development. 【Results】 A total of 1 887 adolescents were enrolled in this study, with 1 111 (58.9%) boys. The proportion of boys and girls who have started sexual development was 78.22% and 89.30%, respectively. The detection rate of behavioral problems in adolescents was 9.70%, with 11.80% in boys and 6.70% in girls, and the gender difference was significant (χ2=13.517, P<0.001). Compared to adolescents in Tanner stage Ⅰ, adolescents in stage Ⅲ had a higher total cognitive score of 2.19 (95%CI: 0.15 - 4.23), and a higher total score of 3.84 (95%CI: 0.85 - 6.83,P<0.05) in stages Ⅳ-Ⅴ. The detection rate of total behavioral problems of children in Tanner stages Ⅳ-Ⅴ was 2.63 times (95%CI:1.27 - 5.46,P<0.05) higher than that in stage Ⅰ. In boys, the rate of detection of internalizing problems was 3.96 times(95%CI:1.60 - 9.81,P<0.01) higher than that in stage Ⅰ, and the detection rate of internalizing problems was 2.88 times(95%CI:1.19 - 7.01,P<0.05) higher than that in stage Ⅰ. 【Conclusions】 There is a significant correlation of sexual developmental phrase with cognitive and behavioral development among adolescents aged 10 - 14 years in rural Shaanxi Province. The detection rate of adolescent behavioral problems increases with the increase of sexual development level and cognitive level, and there are significant gender differences.
		                        		
		                        		
		                        		
		                        	
10.Effects and changes of intrapartum antimicrobial prophylaxis on antibiotic resistance genes in gut microbiota of infants within 6 months of age
Qi QI ; Zhonghai ZHU ; Liang WANG ; Yingze ZHU ; Lingxia ZENG
Chinese Journal of Child Health Care 2024;32(2):142-148
		                        		
		                        			
		                        			【Objective】 To explore the impact of intrapartum antibiotic prophylaxis (IAP) on antibiotic resistance genes (ARGs) in the gut microbiota of infants up to 6 months of age and their longitudinal changes, in order to provide theoretical basis for the rational use of antibiotics and antibiotic resistance control. 【Methods】 Fecal samples were collected within 3 days, 2 months, and 6 months from a maternal and birth cohort conducted between January 2018 and June 2019. A panel of 6 common ARGs (aac(6′)-Ib, qnrS, blaTEM, ermB, mecA, tetM) were tested, the absolute abundance and positive detection rate by qPCR were calculated. Nonparametric and linear mixed model (LMM) analysis were used to assess the influence of IAP on the absolute abundance of antibiotic resistance genes and the longitudinal changes in their abundance at the three time points. 【Results】 A total of 157 samples from 65 singleton infants were analyzed, including 15 mothers (23.1%) who received IAP. The detection rate of ARGs was high in infants up to six months of age, and the abundance of ARGs tended to increase over time. IAP significantly increased the abundance of the mecA gene in the gut microbiota of vaginally delivered infants at 6 months of age (6.1±1.1 in the VDIAP group vs. 3.8±4.6 in the VDno-IAP group, P=0.046). Additionally, in cesarean section infants, there was a significant increase in the abundance of aac(6′)-Ib genes at 2 months (β=3.81, 
		                        		
		                        	
            

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