Objective: To analyze the current situation of adolescent depressive symptoms in singleparent families in Jianyang City, and to construct and verify the early warning model, so as to provide a scientific basis for the government to formulate a plan of promoting the development of adolescent mental health. Methods: A stratified cluster random sampling method was used to select 12 125 middle and high school students from 25 middle schools in Jianyang City from March 2022 to October 2023 for an anonymous selffilling questionnaire survey, and a total of 1 142 adolescents from valid singleparent families were obtained as the survey objects. They were randomly divided into the training set (914 participants) and the verification set (228 participants) according to the ratio of 8∶2. The Chinese version of Beck depression Inventory (BDI) was used to evaluate depressive symptoms among adolescents from singleparent families in Jianyang City. The factors related of depressive symptoms in adolescents from singleparent families were analyzed, and a prediction model was established to verify the model and evaluate its effectiveness. Results: There were 158 adolescents (17.29%) in the training set and 43 adolescents (18.86%) in the verification set with depressive symptoms. Multivariate Logistic regression analysis showed that learning stress (OR=4.31, 95%CI=1.67-11.13), Connor-Davidson Resilience Scale (CDRISC) score (OR=0.29, 95%CI=0.12-0.71) and Family Adaptability and Cohesion Scale (FACESⅡ) scores (OR=0.19, 95%CI=0.06-0.63) were all related factors the occurrence of depressive symptoms in adolescents from singleparent families (P<0.05). The results showed that the C-index was 0.80 (95%CI=0.75-0.80), and the correction curve for predicting the occurrence of depressive symptoms in singleparent families was close to the ideal curve (χ2=0.26, P>0.05). Receiver operating characteristic (ROC) curve results of the training set showed that the sensitivity and specificity of the nomogram model in predicting depressive symptoms in adolescents from singleparent families were 80.38% and 80.03% respectively, ROC area under the curve (AUC) was 0.84 (95%CI=0.76-0.92). The ROC curve results of the verification set showed that the sensitivity, specificity and AUC of histogram model to predict depressive symptoms in adolescents from singleparent families were 79.07%, 82.16% and 0.83 (95%CI=0.76-0.91). Conclusions Learning stress, mental resilience and family function are all factors that affect the occurrence of depressive symptoms in adolescents from single parent families in Jianyang City. Based on this, the early warning model can predict depressive symptoms in Jianyang City.

Humans ; Pulmonary Alveolar Proteinosis/radiotherapy* ; Small Cell Lung Carcinoma/radiotherapy* ; Lung ; Bronchoalveolar Lavage ; Lung Neoplasms/radiotherapy*

OBJECTIVES: This study aimed to investigate how naringenin (Nar) affected the anti-inflammatory, vascula-rization, and osteogenesis differentiation of human periodontal ligament stem cells (hPDLSCs) stimulated by lipopolysaccharide (LPS) and to preliminarily explore the underlying mechanism. METHODS: Cell-counting kit-8 (CCK8), cell scratch test, and Transwell assay were used to investigate the proliferation and migratory capabilities of hPDLSCs. Alkaline phosphatase (ALP) staining, alizarin red staining, lumen-formation assay, enzyme-linked immunosorbent assay, quantitative timed polymerase chain reaction, and Western blot were used to measure the expression of osteopontin (OPN), Runt-related transcription factor 2 (RUNX2), vascular endothlial growth factor (VEGF), basic fibroblast growth factor (bFGF), von Willebrand factor (vWF), tumor necrosis factor-α (TNF-α), and interleukin (IL)-6. RESULTS: We observed that 10 μmol/L Nar could attenuate the inflammatory response of hPDLSCs stimulated by 10 μg/mL LPS and promoted their proliferation, migration, and vascularization differentiation. Furthermore, 0.1 μmol/L Nar could effectively restore the osteogenic differentiation of inflammatory hPDLSCs. The effects of Nar's anti-inflammatory and promotion of osteogenic differentiation significantly decreased and inflammatory vascularization differentiation increased after adding AMD3100 (a specific CXCR4 inhibitor). CONCLUSIONS Nar demonstrated the ability to promote the anti-inflammatory, vascularization, and osteogenic effects of hPDLSCs stimulated by LPS, and the ability was associated with the stromal cell-derived factor/C-X-C motif chemokine receptor 4 signaling axis.
Humans ; Anti-Inflammatory Agents/pharmacology* ; Cell Differentiation ; Cell Proliferation ; Cells, Cultured ; Chemokine CXCL12 ; Lipopolysaccharides/pharmacology* ; Osteogenesis ; Periodontal Ligament/metabolism* ; Receptors, Chemokine/metabolism* ; Stem Cells ; Interleukin-8/metabolism*

COVID-19 ; Coronavirus Nucleocapsid Proteins ; Humans ; Nucleocapsid Proteins ; Phosphoproteins ; SARS-CoV-2

Ambystoma mexicanum/immunology* ; Amputation ; Animals ; Biomarkers/metabolism* ; Blastomeres/immunology* ; Cell Lineage/immunology* ; Connective Tissue Cells/immunology* ; Epithelial Cells/immunology* ; Forelimb ; Gene Expression ; High-Throughput Nucleotide Sequencing ; Humans ; Immunity ; Peroxiredoxins/immunology* ; Regeneration/immunology* ; Regenerative Medicine/methods* ; Single-Cell Analysis/methods*

Glioblastoma (GBM) is one of the most common tumors of the central nervous system, which is the most lethal brain cancer. GBM treatment is based primarily on surgical resection, combined with radiotherapy and chemotherapy. Despite the positive treatment, progression free survival and overall survival were not significantly prolonged because GBM almost always recurs. We are always looking forward to some new and effective treatments. In recent years, a novel treatment method called tumor treating fields (TTFields) for cancer treatment has been proposed. TTFields devices were approved by the Food and Drug Administration (FDA) for adjuvant treatment of recurrent and newly diagnosed GBMs in 2011 and 2015, respectively. This became the first breakthrough treatment for GBM in the past 10 years after the FDA approved bevacizumab for patients with relapsed GBM in 2009. This paper summarized the research results of TTFields in recent years and elaborated the mechanism of action of TTFields on GBM, including cell and animal experimental research, clinical application and social benefits.

Objective To explore the possibility of the inner vertical outer spiral complex tubular urethra scaffold vascularization in repairing long segment of urethral defect.Methods From August 2014 to October 2015,27 clean male New Zealand white rabbits were divided into 3 groups,S1 group was transfected recombinant vascular endothelial growth factor(VEGF) gene lentiviral vector group.S2 group was vascular pedicle transfer tube group.C group was simple stent group.A 3.0 cm inner vertical outer spiral complex scaffold was constructed by using the small intestine acellular matrix (SIS) and polylactic acid copolymer (PLGA) modified by type Ⅰ collagen surface,and adipose-derived mesenchymal stem cells (ADSC) and smooth muscle cells after transformation from New Zealand white rabbits.In S1 group,the seed cells were transfected by recombinant vascular endothelial growth factor (VEGF) gene lentivirus,which express VEGF protein.The complex scaffold was used to repair 3.0 cm rabbit urethral defect In S2 group,the untransfected cells were seeded into the scaffold and embedded in the skin near the groin artery 3 weeks for repairing urethral defect with vascular pedicle transfer tube.In group C,the unseeded scaffold was used to repair the urethral defect alone.Postoperative observation and urethrography were followed 4,8 and 24 weeks after implantation.The HE staining,fluorescence tracing,immunohistochemical and scanning electron microscopy were evaluated at the same phase.Results In S1 group,there were one urinary fistula and one urethral stricture-related death,respectively.The urethra was smooth and patent,histological examination showed active hyperplasia of urethral capillary.In S2 group,there were one urinary fistula and two urethral stricture-related deaths,respectively.The urethral was rough,local thinning or dilated.Fat accumulation and mucosal contraction were found in the urethral submucosal,respctively.In C group,there were one urinary fistula,three hypospadias,and three urethral stricture-related deaths.The thickness of the urethra was uneven and stricture bending.The urethral mucosa was poorly repaired and the scar was narrow.HE and CD31 staining showed that S1 and S2 groups were active in the proliferation of urethral capillaries,and the angiogenesis was abundant.VEGF staining showed that the cytoplasm of endothelial cell layer,smooth muscle layer of vascular wall and the urothelial epithelial cell layer were fully expressed at 24 weeks,especially in epithelial cell layer.CKpan staining showed that the epithelium of S1 and S2 group developed to stratified epithelium,and the morphology of urethra was similar to normal urethra at 24 weeks.The urethral epithelial in C group of grew poor as single-level,irregular arrangement,24 weeks is still a lack of effective stratified epithelium.HE and oα-SMA staining showed that the smooth muscle and actin gradually increased in group S1 and S2,α-SMA staining in group C was scarce and increased at 24 weeks.PLGA was encapsulated by the surrounding tissue and the structure of electrospinning was clear after 4 weeks,absorbed and degraded after 8 weeks and absorbed after 24 weeks.Conclusions The inner vertical outer spiral comnplex tubular urethra scaffold maybe a reasonable method in repairing long segment urethral defects,and the methods of tubular urethra scaffold vascularization by transfected VEGF gene recombinant lentiviral vector and vascular flap deserve more research.

Objective To explore the clinical effect of laparoscopic uterine artery occlusion combined with uterine myomectomy for uterine myomas.Methods 120 patients with uterine fibroids were selected and randomly divided into research group and control group according to the digital table,60 cases in each group.Patients of the control group directly received conventional laparoscopic myomectomy,and patients of the research group received uterine artery occlusion before laparoscopic myomectomy.The intraoperative blood loss,operative time,postoperative anal exhaust time,hospitalization time of the two groups were observed and recorded.The patients were followed up with menstrual with improvement and luteinizing hormone,estradiol,follicle stimulating hormone.Results The intraoperative blood loss,operative time,postoperative anal exhaust time,menstrual improvement,fibroids relapse and other indicators of the research group were better than those of the control group,the differences were statistically significant [(82.85 ± 19.32) mL vs.(153.26 ± 21.18) mL,(60.56 ± 12.21) min vs.(153.38 ± 21.34) min,(15.62 ± 1.66) h vs.(25.03 ± 1.98) h,96.7 ％ vs.78.3 ％,3.3 ％ vs.16.7 ％,t =28.06,27.67,28.21,x2 =9.21,5.92,all P ＜ 0.05].Two months after operation,the E2 and FSH levels of the research group were significantly different with those before operation (t =3.90,3.51,all P ＜ 0.05),but after 12 months,there were no statistically significant differences in E2,FSH and LH compared with before operation (t =0.42,0.50,P =0.68,0.62).There were no statistically significant differences in E2,FSH and LH compared with before operation at two or twelve months after operation(t =0.19,0.39,0.69,P =0.85,0.70,0.49;t =0.58,0.20,0.37,P =0.56,0.83,0.71).Conclusion Uterine artery occlusion before laparoscopic myomectomy can significantly reduce blood loss,shorten the operation time,speed up the recovery and reduce the recurrence rate,and its influence on ovarian function is temporary and reversible,it is worthy of clinical popularization and application.

Face to various disaster and dilemma, the tasks of national rescue team were fast and effective rescue, and reducing the harm of life and damage of property, and decreasing each damage to the lowest point. The ability of national rescue team could reflect the strength and developed degree of a national, it further more manifested the levels of medical rescue team. Face to major disasters, it was vital to provide humanitarian assistance for the affected people in disaster areas at the first time. Many developed countries have established national rescue teams and equipped various kinds of rescue equipment, and the disaster relief of medical team was regarded as the main force in emergency health rescue for disaster. refer to the constitution and equipment of national rescue team of developed countries has an important guiding role for perfection of emergency medical rescue in China.

Objective To observe the effect of moxibustion on the learning ability and memory of rat models of Alzheimer’s disease (AD) and the expression of amyloidβ protein (Aβ)-42, interleukin (IL)-1β, and IL-2, for unveiling the function and mechanism of moxibustion in treating AD.Method Forty-eight healthy male Sprague-Dawley rats were randomized into a sham-operation group, a model group, a Western medication group, and a moxibustion group, 12 rats in each group. The AD model rats were established by injection of Streptozotocin (STZ) into bilateral ventricles. From the 10th day after the operation, the moxibustion group started to receive moxibustion at Baihui (GV 20), Mingmen (GV 4), Changqiang (GV 1), and Guanyuan (CV 4); meanwhile, the Western medication group received Donepezil hydrochloride via intragastric administration. After 30-day treatment, the learning and memory ability was tested by using water maze, the hippocampal Aβ-42 was examined by immunohistochemical method, and the expression of hippocampal IL-1β and IL-2 was by double-antibody sandwich ELISA.Result Compared to the model group, moxibustion significantly down-regulated the levels of Aβ-42 (P<0.05) and IL-1β protein (P<0.05), up-regulated the level of IL-2 protein (P<0.05) in hippocampus, and markedly improved the learning and memory of AD rats (P<0.05).Conclusion Moxibustion can enhance the immunity and learning ability, which is plausibly related to the down-regulation of IL-1β, up-regulation of IL-2, and improvement of Aβ-42 in hippocampus.