Objective: To investigate the relationships among psychological resilience, parental control, and behavioral problems in middle school students, aiming to provide evidencebased recommendations for the prevention and intervention of behavioral issues in middle school students, as well as for the development of related policies. Methods: A stratified cluster sampling method was used to select 2 745 participants from three cities in Guizhou Province with different levels of economic development from August to December 2021. The Child Behavior Checklist (CBCL), Parental Control Questionnaire, and Psychological Resilience Questionnaire were administered to junior high school students and their parents. A network analysis method was employed to construct a network analysis model of factors influencing behavioral problems. Results: The detection rate of behavioral problems among junior high school students in Guizhou Province was 22.62%. The scores for psychological resilience (goal focus, emotional control, positive cognition, family support, and interpersonal assistance) and proactive inquiry in behavior control were higher in the group without behavioral problems than in the group with behavioral problems. Scores for psychological control (inducing guilt, with drawing affection, and asserting authority) were higher in the group with behavioral problems than in the group without behavioral problems, with statistically significant differences (t=9.80, 17.76, 6.21, 12.20, 13.18, 6.28, 11.58, 11.10, 10.74, P<0.05). The network model showed that among the same variable factors, the strongest connection weight was between inducing guilt and withdrawing affection, with a weight of 0.79. Between different variables, there were negative correlation between behavioral problems and psychological resilience (goal focus, emotional control, positive cognition, family support, interpersonal assistance) and behavior control (proactive inquiry, behavioral restraint) with correlation coefficients (r=-0.25, -0.42, -0.16, -0.31, -0.33, -0.17, -0.03, P<0.05), respectively. There were positive correlation between psychological control factors (inducing guilt, withdrawing affection, and asserting authority) and behavioral problems (r=0.29, 0.27, 0.27), and a negative correlation between these psychological control factors and psychological resilience factors (goal focus, emotional control, positive cognition, family support, interpersonal assistance)(r=-0.53--0.13)(P<0.05). The strongest connection weight was between withdrawing affection and family support, with a connection weight of -0.53. Family support was an important bridge symptom connecting the entire behavioral problem network model, with a high centrality. Conclusions The detection rate of behavioral problems among junior high school students in Guizhou Province is relatively high. Assisting adolescents in establishing a supportive family environment facilitates the cultivation of their psychological resilience, thereby mitigating the occurrence of behavioral problems.

Objective: To explore the current status related to behavioral problems among children and adolescents aged 12-16 years old in Guizhou Province, China, and to provide a reference for timely prevention and intervention measures. Methods: To capture different economic development levels, a multistage stratified cluster sampling method was used. A total of 3 217 children and adolescents aged 12-16 years old from six middle schools and six primary schools in Guiyang, Duyun, Kaili City from Guizhou Province participated in this study. The Achenbach Child Behavior Checklist (CBCL) and a self designed questionnaire were administered between August and December 2021. Results: The overall detection rate of behavioral problems among the students was 16.60% , and the rate was 14.41% and 18.62% among male and female students, respectively. The results of the Logistic regression analysis showed that good peer relationships ( OR=0.25, 0.16, P <0.05) were associated with a lower risk of behavioral problems in children and adolescents. However, the following factors were associated with an elevated risk of behavioral problems: nonparents as the main caregivers( OR = 1.44 ); children s daily screen time was 1-2 h ( OR =1.47) or more than 2 h( OR =2.75); children who had no sports hobbies( OR = 1.36); father parenting for doting or neglect( OR =1.85, 2.01); maternal parenting for doting( OR = 2.12 ); father had bad life habits( OR =1.69); father and mother were occasionally sick( OR =1.30, 1.38)( P <0.05). Conclusion Behavioral problems among children and adolescents in Guizhou Province is related to children s unhealthy living habits and various factors in the family environment. It is suggested that families, schools and relevant functional departments give full play to their own advantages and take comprehensive measures to prevent the occurrence of behavioral problems among children and adolescents.

Objective:To observe the application effect of mind mapping combined with interactive communication mode in clinical teaching of neurosurgery.Methods:A total of 40 students who practiced in the Department of Neurosurgery in the Affiliated Hospital of Guizhou Medical University from September 2019 to September 2020 were included in the control group, and traditional teaching was adopted; another 40 students who practiced from October 2020 to October 2021 were included in the observation group, and mind mapping combined with interactive communication mode was adopted for teaching. The two groups of students were taught for 2 weeks, and after the teaching, the teaching effect was compared between the two groups. SPSS 25.0 software was used to conduct t-test and Chi-square test. Results:After 2 weeks of teaching, the scores of theoretical knowledge (90.38±4.03) and practical operation skills (93.37±3.48) in the two groups were higher than those before teaching [(85.52±5.26) and (87.25±4.48)], with statistically significant differences ( t=4.63, 6.83, P<0.001). The case analysis score of the two groups was higher than that before teaching, and that of the observation group (86.03±6.07) was higher than that of the control group (79.13±5.57), with statistically significant differences ( t=5.30, P<0.001). The scores of interpersonal communication ability and cooperation ability of the two groups were higher than those before teaching. The scores of interpersonal communication ability (82.53±4.74), cooperation ability (169.73±7.55) of the observation group were higher than those of the control group [(77.93±4.45) and (158.42±8.01)], with statistically significant differences ( t=4.48, 6.49, P<0.001). Conclusion:Mind mapping combined with interactive communication mode can effectively improve the clinical basic knowledge and clinical practice ability of interns in the Department of Neurosurgery, and improve their communication and cooperation ability.

Objective:To explore the effects of Onodera′s prognostic nutritional index (PNI) on the prognosis of locally advanced oropharyngeal squamous cell carcinoma (LA-OPSCC) after induction chemotherapy followed by sequential chemoradiotherapy.Methods:A retrospective analysis was conducted on the clinical data of 52 LA-OPSCC patients receiving induction chemotherapy followed by sequential chemoradiotherapy in The Affiliated Cancer Hospital of Guizhou Medical University during 2014-2018. The PNI values of all the patients at different treatment phases were statistically analyzed, and the ROC curve was employed to determine the optimal critical value of PNI. The patients in this study were divided into a well-nourished group ( n = 27) and a poorly-nourished group ( n = 25). The Kaplan-Meier method was used for survival analysis. The Cox proportional hazards model was utilized to analyze the relationships between different nutritional status and prognosis. Clinical features and adverse reactions were compared between the two groups. Results:The PNI values decreased significantly after radiotherapy, with an optimal critical value of 42.4. The 5-year overall survival (OS) and progression-free survival (PFS) of the well-nourished group (PNI ≥ 42.4) were 62.6% and 60.9%, respectively, which were significantly higher than those (30.1% and 29.7%) of the poorly-nourished group (PNI < 42.4, χ2 = 11.12, 5.74, P < 0.05). The multivariate analysis showed that PNI was an independent prognostic factor for the OS after radiotherapy ( HR = 2.752, 95% CI: 1.095-6.917, P = 0.031). The LA-OPSCC patients aged over 60 years or those who did not respond to induction chemotherapy accounted for a higher proportion of malnutrition after chemoradiotherapy ( χ2 = 4.89, 5.05, P < 0.05). Conclusions:PNI after radiotherapy can be used as a prognostic factor in the evaluation of LA-OPSCC patients receiving induction chemotherapy followed by sequential chemoradiotherapy. The LA-OPSCC patients aged over 60 years or those who do not respond to induction chemotherapy should receive more nutritional support during the chemoradiotherapy.

Objective:To explore the effect of clinical conventional fractionated dose radiation on the expression levels of immunogenic cell death (ICD) related proteins in patients with nasopharyngeal carcinoma (NPC).Methods:A total of 38 newly-treated NPC patients admitted to the Affiliated Cancer Hospital of Guizhou Medical University from November 2020 to December 2021 were enrolled, all of whom received induction chemotherapy and concurrent chemoradiotherapy, and another 20 healthy volunteers were selected as controls for a prospective study. The contents of ICD related proteins, namely calreticulin (CRT), high mobility group box 1 protein (HMGB-1) and heat shock protein 70 (HSP70) and the proportion of dendritic cell (DC) in the peripheral blood of patients were detected before treatment, after induction chemotherapy and after concurrent chemoradiotherapy, respectively. The correlation between the above indicators, general clinical data and short-term efficacy was analyzed by statistical methods such as t-test and analysis of variance (ANOVA). Results:The levels of HSP70 and HMGB-1 in peripheral blood of NPC patients before treatment were higher than those of healthy controls (both P<0.05). After concurrent chemoradiotherapy, the content of CRT was significantly higher than that before treatment ( P<0.05), whereas the difference before and after induction chemotherapy and the difference before and after concurrent chemoradiotherapy were not significantly correlated with the short-term efficacy of NPC patients. HSP70 level was significantly decreased after concurrent chemoradiotherapy ( P<0.001). There were no significant differences in the content of HMGB-1 after induction chemotherapy and concurrent chemoradiotherapy (both P>0.05). Conclusion:NPC patients receiving TPF regimen (docetaxel+cisplatin+fluorouracil) for induction chemotherapy and sequential cisplatin concurrent chemotherapy may induce ICD in NPC cells, and CRT has potential value in reflecting the clinical efficacy of NPC.

Objective:To explore the effect of case management model based on WeChat on self-care ability and condition status of patients with chronic nephritis.Methods:From January 2020 to February 2022, convenience sampling was used to select 110 patients with chronic nephritis who were treated in the Department of Nephrology, Affiliated Hospital of Jining Medical University. The patients were divided into groups according to the different wards they lived in. The control group consisted of inpatients in the first ward and the research group of inpatients in the second ward, with 55 patients in each group. The control group received routine continuous nursing guidance, while the research group adopted the case management model based on WeChat on the basis of the control group. We compared the self-care ability, negative emotions, and renal function between the two groups.Results:Before nursing, the scores of the Elderly Self-Care Ability Scale (ESCA), the Generalized Anxiety Disorder-7 (GAD-7), the Patient Health Questionnaire-9 (PHQ-9), and the indicators of renal function [serum creatinine (Scr), blood urea nitrogen (BUN), and 24 hours urine protein (24 h UP) ] were compared between the two groups, and the differences were not statistically significant ( P>0.05). After nursing, ESCA scores such as health knowledge, self-care skills, self-care responsibility, and self-concept in the two groups were higher than those before nursing, and those of the research group were higher than those of the control group, with statistical differences ( t=4.650, 2.250, 3.052, 3.434; all P<0.05). The GAD-7 score and PHQ-9 score of the two groups after nursing were lower than those before nursing, and those of the research group were lower than those of the control group, with statistically significant differences ( t=8.207, 3.464; all P<0.05). After nursing, the renal function indicators such as SCR, BUN, and 24 h UP in the two groups were lower than before nursing, and those of the research group were lower than those of the control group, with statistically significant differences ( t=2.831, 2.797, 2.228; all P<0.05) . Conclusions:Applying the case management model based on WeChat to patients with chronic nephritis can improve their self-care ability, alleviate their negative emotions, promote improvement in their condition.

Objective:To learn about the status of thyroid function and intelligence quotient (IQ) of children in areas with different iodine nutrition levels in Xinjiang Uygur Autonomous Region, and to explore the health risk of children with median urinary iodine of 200 - 299 μg/L, and to provide a basis for scientific iodine supplementation.Methods:In May 2019, in Xinjiang Uygur Autonomous Region, Altay Prefecture and Kashgar Prefecture were selected, where the median urinary iodine of children aged 8 to 10 years were 100 - 199 and 200 - 299 μg/L for three consecutive years (2017 - 2019). A stratified random sampling method was used to select 400 children aged 8 to 10 years in each of the two regions, urine and blood samples were collected to detect urinary iodine and thyroid function [thyrotropin stimulating hormone (TSH), free thyroxine (FT 4), free triiodothyronine (FT 3), anti-thyroglobulin antibody (TgAb), and anti-thyroperoxidase antibody (TPOAb)]. At the same time, children's IQ was measured and determined by Second Revision of Combined Raven's Test (CRT-C2) in China and Second Revision of Combined Raven's Test for Children-the Rural, in China (CRT-RC2). Results:The median urinary iodine of children aged 8 to 10 years in Altay Prefecture and Kashgar Prefecture was 188.6 and 250.1 μg/L, respectively. There was no statistically significant difference in thyroid function indexes TSH and FT 3 levels between the two regions ( Z = - 0.58, t = 0.49, P > 0.05), while there was statistically significant difference in FT 4 level ( t = 60.08, P < 0.001). There was no statistically significant difference in TgAb positive rate [3.6% (14/394), 4.0% (16/399)] between the two regions (χ 2 = 0.11, P = 0.736), but the difference of TPOAb positive rate [9.6% (38/394), 30.6% (122/399)] was statistically significant (χ 2 = 53.93, P < 0.001), while the difference of dual antibody positive rate [0.8% (3/394), 2.0% (8/399)] was not statistically significant ( P = 0.134). There was no statistically significant difference in the detection rates of subclinical hypothyroidism [8.9% (35/394), 11.0% (44/399)], subclinical hyperthyroidism [1.0% (4/394), 1.3% (5/399)] and hyperthyroidism [0.3% (1/394), 0.8% (3/399)] in children between the two regions ( P > 0.05). The IQ results of children in the two regions were 96.55 ± 11.36 and 89.57 ± 12.35, respectively, and there was no significant difference between them ( t = 2.79, P = 0.095). Conclusions:The thyroid function status of children is similar in the two regions with median urinary iodine of 100 - 199 μg/L and 200 - 299 μg/L in children aged 8 to 10 years, but the TPOAb positive rate is significantly different. Children whose iodine nutritional level is at or above the appropriate level have no obvious changes in intelligence. It is suggested that median urinary iodine at 200 - 299 μg/L is a relatively safe iodine nutrition state.

Objective:To investigate the protective effect and mechanism of Acronychia pedunculata water extracts on UV-induced light damage of human keratinocytes.Methods:The experiment was conducted from December 2018 to April 2020 in the Guangxi Medical University Laboratory of Genetics. The photoaged keratinocyte model was used, the cells were co-cultured with different concentrations of Acronychia pedunculata water extracts. The cell proliferation rate was detected by CCK-8 method. The levels of reactive oxygen species (ROS), malondialdehyde (MDA), superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX) and total antioxidant capacity (T-AOC) of cells were detected by a test kit. The levels of IL-1β, IL-6 and tumor necrosis factor-alpha (TNF-α) were determined by ELISA.Results:The proliferation of HaCaT cells was promoted by 0.5 mg/L-2.0 mg/L of the extracts. Compared with control group, the proliferation rate of HaCaT cells in the experimental group was significantly increased ( P<0.05). Compared with control group, the contents of ROS was decreased ( F=214.67, P<0.05), MDA was decreased ( F=811.88, P<0.05), SOD was increased ( F=28.95, P<0.05), CAT was increased ( F=213.31, P<0.05), GPX was increased ( F=65.10, P<0.05), T-AOC was increased ( F=305.58, P<0.05), IL-1β was decreased ( F=15.46, P<0.05), IL-6 was decreased ( F=59.2, P<0.05), and TNF-α was decreased ( F=33.13, P<0.05). Conclusions:The extracts of 0.5-2.0 mg/L of Acronychia pedunculata have protective effects on the photoaging cell model, which may be related to the increase of SOD, CAT, GPX and other antioxidant enzymes and the level of T-AOC in photoaging HaCaT cells, and the decrease of ROS, MDA content and the expression of inflammatory cytokines.

Objective:To explore the clinical significance and prognostic value of fibrinogen (FIB) in the treatment of locally advanced head and neck squamous cell carcinoma with induction chemotherapy combined with radiotherapy.Methods:A retrospective analysis was conducted for the clinical data of 114 patients with locally advanced head and neck squamous cell carcinoma receiving non-surgical treatment in the Department of Head and Neck Oncology, the Affiliated Cancer Hospital of Guizhou Medical University from May 2011 to May 2021. The FIB critical value was determined based on the median FIB level before induction chemotherapy, by which patients were divided into high-FIB and low-FIB groups. The ROC curves were used to determine the optimal cut-off value for other hematologic-related parameters such as neutrophils, lymphocytes, and platelets. Statistical methods were used to analyze the results. The enumeration data were analyzed by Chi-square test or Fisher exact probability method. Survival curves for OS and PFS were plotted by Kalplan-Meier method and tested by Log-rank method. Prognostic factors were evaluated by Cox proportional hazard regression model.Results:There were 59 cases in the high-FIB group (FIB > 3.6 g/L) and 55 cases in the low-FIB group (FIB ≤ 3.6 g/L). The high FIB group had higher neutrophils, platelets, NLR, and PLR ( χ2= 7.84, 12.80, 15.04, 9.14; P<0.05) than the low FIB group. The 3- and 5-year overall survival (OS) rates were significantly longer in the low FIB group than those in the high-FIB group (62.9% vs. 39.6%; 46.9% vs. 25.8%), and progression-free survival (PFS) rates of the low FIB group significantly longer than those of the high-FIB group (63.3% vs. 40.3%; 48.1% vs. 26.2%). The univariate analysis showed that the OS and PFS in patients with locally advanced head and neck squamous cell carcinoma were related to FIB, the application of concurrent chemoradiotherapy, and the efficacy of radiotherapy for lymph nodes. The multivariate analysis showed that FIB, the application of concurrent chemoradiotherapy, and the efficacy of radiotherapy for lymph nodes were independent prognostic factors of the OS [ HR (95% CI): 1.89 (1.08-3.31), 3.76 (1.12-12.65), 2.14 (1.09-4.21), P < 0.05]and PFS HR (95% CI): 1.92 (1.90-3.36), 3.93 (1.01-11.34), 2.15 (1.09-4.22), P < 0.05]of patients with locally advanced head and neck squamous cell carcinoma. Conclusions:Patients with low FIB receive high OS and PFS rates after induction chemotherapy combined with radiotherapy. Therefore, FIB can be used as a prognostic factor in the evaluation of non-surgical treatment of patients with locally advanced head and neck squamous cell carcinoma.

To construct cellular senescence model by stimulating primary hepatocytes with hydrogen peroxide (H 2O 2). Primary hepatocytes were transfected with p53 siRNA, progerin siRNA or IGF-1 adenovirus vector. The number of SA-β-Gal stained positive cells and the expression of p53 and progerin were detected. The results showed that p53 siRNA and progerin siRNA had knocked-down the expression of p53 and progerin, and had alleviated the hepatocyte senescence. Transfection of insulin-like growth factor (IGF)-1 adenovirus vector into primary hepatocytes had overexpressed IGF-1, and had alleviated the number of SA-β-Gal-positive cells. The expression of p53 and progerin was down-regulated in the nucleus, while the expression of p53 was up-regulated in the cytoplasm. The co-precipitation and co-localization of p53 and progerin was decreased in the nuclear region of hepatocytes. IGF-1 overexpression can inhibit intranuclear p53 translocation, alleviate the interaction between p53-progerin, and alleviate hepatocyte senescence.