Objective To evaluate the effect of sodium hyaluronate combined with recombinant human epidermal growth factor(rhEGF)in the treatment of dry eye after cataract surgery.Methods Patients with dry eye after cataract surgery were divided into treatment group and control group.The control group was treated with sodium hyaluronate eye drops via dropping into the conjunctival sac,a drop per dose,tid,for 4 weeks.On this basis,the treatment group was treated with rhEGF eye drops via dropping into the conjunctival sac,1-2 drops per dose,tid,for 4 weeks.The two groups were compared on overall clinical efficacy,dry eye symptoms before treatment and after 4 weeks of treatment.Tear-film breakup time(BUT),basic tear secretion test(schirmer Ⅰ test,SⅠT),corneal fluorescein staining(CFS)score,meibomian gland yield secretion score(MGYSS),and the levels of tear inflammatory factors were compared between two groups before treatment and after 4 weeks of treatment.The safety was evaluated.Results Finally,41 cases and 39 cases were included in the treatment group and the control group,respectively.After treatment,the total effective rates in the treatment group and the control group were 95.12％and 79.49％,with statistically significant difference(P＜0.05).After 4 weeks of treatment,dry eye symptom scores of the treatment group and control group were 1.42±0.18 and 2.31±0.26;BUT were(11.89±1.26)and(10.46±1.27)s;SⅠT were(10.12±1.35)and(8.45±0.87)mm;CFS scores were 0.83±0.11 and 1.94±0.25;MGYSS scores were 10.85±1.17 and 12.43±1.56;interleukin-1β levels in tears were(35.26±3.53)and(74.12±7.55)ng·L-1;interleukin-6 levels were(8.35±0.86)and(12.41±12.56)pg·mL-1.Compared with the control group,the above indexes in the treatment group were statistically significant(all P＜0.05).The incidence rates of adverse drug reactions in the treatment group and the control group were 12.20％and 10.26％,without statistically significant difference between the groups(P＞0.05).Conclusion Sodium hyaluronate combined with rhEGF can significantly improve dry eye symptoms after cataract surgery,enhance the stability of tear film,reduce tear inflammatory factors,and protect the integrity of meibomian gland.

Objective:To analyze the comprehensive blood inflammation index of the patients with stage I pneumoconiosis complicated with pulmonary infection, and to explore its value in predicting the patients' disease.Methods:In September 2023, 83 patients with stage I pneumoconiosis who were treated in Tianjin Occupational Diseases Precaution and Therapeutic Hospital from November 2021 to August 2023 were selected and divided into non-infected group (56 cases) and infected group (27 cases) according to whether they were combined with lung infection. Workers with a history of dust exposure but diagnosed without pneumoconiosis during the same period were selected as the control group (65 cases) . By referring to medical records and collecting clinical data such as gender, age, occupational history, past medical history, hematology testing, the differences in the comprehensive blood inflammation indexes among the three groups were compared, ROC curve was drawn, and the relationship between comprehensive blood inflammation indexes and stage I pneumoconiosis and its combined lung infection was analyzed.Results:There were significtant differences in the number of neutrophils (N) , the number of lymphocytes (L) , the number of monocytes (M) , C-reactive protein (CRP) , the neutrophil to lymphocyte ratio (NLR) , the monocyte to lymphocyte ratio (MLR) , the platelet to lymphocyte ratio (PLR) , the systemic immune-inflammatory index (SII) , the systemic inflammation response index (SIRI) , the aggregate index of systemic inflammation (AISI) , the derived neutrophil to lymphocyte ratio (dNLR) , the neutrophil to lymphocyte and platelet ratio (NLPR) , and the C-reactive protein to lymphocyte ratio (CLR) ( P<0.05) . Compared with the control group, MLR, SIRI and AISI in the non-infected group were significantly increased ( P<0.05) . NLR, MLR, PLR, SII, SIRI, AISI, dNLR, NLPR, CLR were significantly increased ( P<0.05) . Compared with the non-infected group, NLR, PLR, SII, SIRI, AISI, dNLR, NLPR and CLR were significantly increased in the infected group ( P<0.05) . ROC analysis showed that NLR, MLR, PLR, SII, SIRI and AISI had a certain predictive capability for stage I pneumoconiosis ( P<0.05) , among which MLR had the highest efficacy, with an AUC of 0.791 (95% CI: 0.710-0.873) , the cut-off value was 0.18, the sensitivity was 71.4%, and the specificity was 78.5%. NLR, MLR, PLR, SII, SIRI, AISI, dNLR, NLPR and CLR all had a certain predictive capability forstage I pneumoconiosis combined lung infection ( P<0.05) , among which CLR had the highest efficacy, with an AUC of 0.904 (95% CI: 0.824~0.985) , the cut-off value was 5.33, sensitivity was 77.8%, specificity was 98.2%. Conclusion:The comprehensive blood inflammation index may be an auxiliary predictor of stage I pneumoconiosis and its combined lung infections.

Objective:To analyze the comprehensive blood inflammation index of the patients with stage I pneumoconiosis complicated with pulmonary infection, and to explore its value in predicting the patients' disease.Methods:In September 2023, 83 patients with stage I pneumoconiosis who were treated in Tianjin Occupational Diseases Precaution and Therapeutic Hospital from November 2021 to August 2023 were selected and divided into non-infected group (56 cases) and infected group (27 cases) according to whether they were combined with lung infection. Workers with a history of dust exposure but diagnosed without pneumoconiosis during the same period were selected as the control group (65 cases) . By referring to medical records and collecting clinical data such as gender, age, occupational history, past medical history, hematology testing, the differences in the comprehensive blood inflammation indexes among the three groups were compared, ROC curve was drawn, and the relationship between comprehensive blood inflammation indexes and stage I pneumoconiosis and its combined lung infection was analyzed.Results:There were significtant differences in the number of neutrophils (N) , the number of lymphocytes (L) , the number of monocytes (M) , C-reactive protein (CRP) , the neutrophil to lymphocyte ratio (NLR) , the monocyte to lymphocyte ratio (MLR) , the platelet to lymphocyte ratio (PLR) , the systemic immune-inflammatory index (SII) , the systemic inflammation response index (SIRI) , the aggregate index of systemic inflammation (AISI) , the derived neutrophil to lymphocyte ratio (dNLR) , the neutrophil to lymphocyte and platelet ratio (NLPR) , and the C-reactive protein to lymphocyte ratio (CLR) ( P<0.05) . Compared with the control group, MLR, SIRI and AISI in the non-infected group were significantly increased ( P<0.05) . NLR, MLR, PLR, SII, SIRI, AISI, dNLR, NLPR, CLR were significantly increased ( P<0.05) . Compared with the non-infected group, NLR, PLR, SII, SIRI, AISI, dNLR, NLPR and CLR were significantly increased in the infected group ( P<0.05) . ROC analysis showed that NLR, MLR, PLR, SII, SIRI and AISI had a certain predictive capability for stage I pneumoconiosis ( P<0.05) , among which MLR had the highest efficacy, with an AUC of 0.791 (95% CI: 0.710-0.873) , the cut-off value was 0.18, the sensitivity was 71.4%, and the specificity was 78.5%. NLR, MLR, PLR, SII, SIRI, AISI, dNLR, NLPR and CLR all had a certain predictive capability forstage I pneumoconiosis combined lung infection ( P<0.05) , among which CLR had the highest efficacy, with an AUC of 0.904 (95% CI: 0.824~0.985) , the cut-off value was 5.33, sensitivity was 77.8%, specificity was 98.2%. Conclusion:The comprehensive blood inflammation index may be an auxiliary predictor of stage I pneumoconiosis and its combined lung infections.

Vaccination is the most cost-effective means of prevention and control of infectious diseases,and is a prioritized strategy for responding to pandemic diseases.Based on experience related to research and development of vaccines for coronavirus disease 2019(COVID-19),we used literature research and expert consultation methods to screen thirty key technologies in nine sub-fields of vaccine technology,which were ranked according to the importance,urgency,innovation and feasibility so as to show where every key technology stood in relation to others in the pineline.The priorities of development of key technologies for vaccines in response to major emerging infectious diseases were recommended to provide reference for related decision-makers in their effort to rationalize research resources and maximize the benefits.

Intracellular overexpression of cytoglobin (Cygb) has been shown to reduce extracellular matrix deposition and promote liver fibrosis recovery, but its mechanism is not yet clear. This study constructed and expressed a fusion protein (TAT-Cygb) of cell penetrating peptide TAT and Cygb, to investigate the effect of fusion protein TAT-Cygb on regulating hepatic stellate cells (HSCs) ferroptosis. Cultured human hepatic stellate cells line (LX2) were treated with TAT-Cygb and erastin in vitro, respectively. The effects of ferroptosis phenotype in LX2 cells induced by TAT-Cygb, including cell viability, cell morphology, iron ion (Fe²⁺) content, lipid peroxidation product levels, and antioxidant system indicators, were investigated using trypan blue staining, transmission electron microscopy, Prussian blue staining, and reagent kits detection. After co-treatment with TAT-Cygb and ferrostain-1, the levels of Fe²⁺, reactive oxygen species (ROS), malondialdehyde (MDA), 4-hydroxynonenal (4-HNE), nicotinamide adenine dinucleotide phosphate (NADPH) and glutathione (GSH) were measured by reagent kits. The protein expression levels of alpha smooth actin (α-SMA), collagen I and fibronectin were detected by Western blot, and the protein expression level of epidermal growth factor receptor (EGFR) and desmin relevant to fibrosis were observed by immunofluorescence. The results showed that TAT-Cygb could significantly reduce the viability of LX2 cells and trigger events relevant to ferroptosis, including promoting intracellular Fe²⁺ accumulation, and inducing mitochondrial morphological changes, and intensifying lipid peroxidation products accumulation, and decreasing the level of antioxidant indexes, which played a similar role as erastin; Fer-1 significantly weakened the increase in Fe²⁺, ROS, MDA, 4-HNE levels induced by TAT-Cygb, as well as the decrease in NADPH and GSH levels, while also weakening the TAT-Cygb-induced over-expression levels of α-SMA, collagen I and fibronectin, and TAT-Cygb-induced under-expression levels of EGFR and desmin. This cellular level study indicated that TAT-Cygb can induce ferroptosis of activated HSCs. This study revealed the potential mechanism of TAT-Cygb anti-liver fibrosis, and provided the experimental basis for further research on the molecular mechanism of TAT-Cygb realizing biological function by regulating the ferroptosis pathway.

The metabolism study of radiolabeled drugs plays an important role in the development of new drugs. It provides information on drug absorption, metabolism, tissue distribution and excretion, and plays an irreplaceable role in the metabolite safety evaluation and mass balance of new drugs. The new guidance draft on clinical trials of radiolabeled drugs recently released by the US FDA puts forward higher standards and has been widely concerned by the industry. In recent years, in the research and development of new drugs in China, ¹⁴C labeled drugs have been used to carry out clinical metabolism studies, which has overcome key technical bottlenecks and accumulated experience. This paper summarizes the above research progress, analyzes the existing problems, and preliminarily looks forward to the future technological development and application.

Objective: To clarify the long-term characteristics of tinnitus following treatment of sudden deafness and its long-term physical and mental effects on patients. Methods: A retrospective analysis was performed on 88 patients (46 males and 42 females; Age from 11 to 89 years) with sudden deafness treated in Department of Otoscope Surgery of Peoples's Libration Army General Hospital in Beijing from April 2020 to January 2021, and the occurrence of tinnitus and treatment effect of all patients were analyzed. Follow-up was conducted for patients with residual tinnitus after treatment for more than 1 year by the investigation and filling in the survey information collection form, Tinnitus Evaluation Questionnaire (TEQ) and Tinnitus Handicap Inventory (THI). Descriptive statistics and SPSS 22.0 software were used for statistical data analysis. Results: In this study, 93.2% (82/88) of patients with sudden deafness were accompanied by tinnitus at the onset, and the proportion of long-term tinnitus after treatment was 90.2% (74/82). After 1 year of treatment for sudden deafness, the improvement of tinnitus was significant in low-frequency sudden deafness compared with those of high-frequency, flat and total deafness sudden deafness (χ2 value was 6.801, 4.568 and 4.038, all P<0.05). In patients with residual tinnitus, 9 (12.2%) patients felt minimal loudness or even no loudness, 34 (46.0%) patients felt slight loudness, 28 (37.8%) patients felt tinnitus was relatively loud, and 3 (4.1%) patients felt tinnitus was loud or noisy. Nine (12.2%) patients's sleep was often affected, 41 (55.4%) patients's sleep was sometimes affected, 9 (12.2%) patients's sleep was rarely affected, 15 (20.3%) patients's sleep was almost not affected. Twenty-eight (37.8%) patients basically completely adapted to tinnitus and 46 (62.2%) patients did not completely adapted to residual tinnitus. Eight (10.8%) patients had no impact on life, 39 (52.7%) patients had slight impact, 22 (29.7%) patients had moderate impact, and the other 5 (6.8%) patients had greater impact. According to tinnitus evaluation questionnaire(TEQ), there were 12 cases (16.2%) of grade Ⅰ, 26 cases (35.1%) of grade Ⅱ, 28 cases (37.8%) of grade Ⅲ, 7 cases (9.5%) of grade Ⅳ and 1 case (1.4%) of grade Ⅴ. According to tinnitus handicap inventory(THI), tinnitus disability was classified into grade Ⅰ, 22 cases (29.7%), grade Ⅱ, 14 cases (18.9%), Grade Ⅲ, 27 cases (36.5%) and grade Ⅳ, 11 cases (14.9%). Conclusion: The rate of residual tinnitus following treatment of sudden deafness is high. Some of the patients can completely adapt residual tinnitus after one year, but some of them will be affected when sleep, work and study. Residual tinnitus can lead to tinnitus disability in different degrees.
Male ; Female ; Humans ; Child ; Adolescent ; Young Adult ; Adult ; Middle Aged ; Aged ; Aged, 80 and over ; Hearing Loss, Sudden/therapy* ; Tinnitus/therapy* ; Retrospective Studies ; Deafness/complications* ; Audiometry

Objective: To verify the effectiveness of adolescent peer education on psychological resilience of adolescents, so as to provide a scientific reference for preventing adolescents physical and mental health problems. Methods: The non equivalent comparison group design method was conducted involving 2 towns which were divided into an intervention group(n=732) and a control group(n=881). The intervention group received 1 year peer education. Their resilience and basic information was assessed by using a adolescent psychological resilience scale and a self-designed basic situation questionnaire. Results: After the intervention, in the control group, target concentration, emotional control, family support, interpersonal assistance, and total psychological resilience were reduced by 0.96, 0.72, 0.63, 1.16 and 3.31, respectively(t=5.75, 3.91, 3.52, 5.86, 6.29, P<0.05); in the intervention group, emotional control, interpersonal assistance, and total psychological resilience were increased by 1.05, 0.54 and 1.72, respectively(t=-4.89, -2.46, -2.76, P<0.05). Multiple linear regression showed that the intervention group s target concentration(B=0.38), emotional control (B=0.85), family support(B=0.29), interpersonal assistance(B=0.83), and total psychological resilience(B=2.40) increased higher than the control group(P<0.05). Conclusion Adolescent peer education is effective in improving the target concentration, emotional control, family support, interpersonal assistance, and total psychological resilience.

Objective: To explore the relationship between pubertal knowledge-attitude-practice(KAP) and quality of life (QoL) of left-behind children in adolescence, and to provide a scientific reference for making measures to improve QoL of left-behind children. Methods: In December 2017, 3 524 left-behind children from 5 primary schools and 5 middle schools in Chongqing were selected by stratified cluster sampling method carry out the Quality of Life Scale of adolescent children and the Questionnaire of Adolescent Knowledge and Belief. Results: The scores of total QoL, physicaland social dimensions of left-behind children[(140.81±17.19)(30.05±5.07)(50.99±8.32)points, respectively]were lower than those of non-left-behind children[(141.81±17.53)(30.35±5.06)(51.73±8.44)point, respectively](P<0.05). Gender, School period, puberty timing, family rearing pattern and economic status had significant influence on the QoL of left-behind children (P<0.05). The adolescent attitude and behavior had a positive effect on total QoL and the scores of physical, psychological, social and adolescent dimensions of left-behind children(B=0.62, 0.08, 0.11, 0.30, 0.13；0.77, 0.11, 0.20, 0.26, 0.19, P<0.01); and knowledge had a positive effect on the adolescence of QoL(B=0.04, P<0.01). Conclusion The adolescent attitude, behavior and quality of life of left-behind children were positively correlated. Strengthening adolescent health education for left-behind children, focusing on conveying correct adolescent attitude to students, and promoting the transformation of correct attitude to positive practice, can improve the QoL of adolescent left-behind children.

Objective: To understand the health literacy level and its influencing factors among middle school students in Chongqing, and to provide a basis for health promotion. Methods: Using stratified cluster random sampling and a self-designed questionnaire, we conducted a survey among 8 449 junior and senior high school students from four districts and counties in Chongqing municipality from November to December 2019. Results: The attainment rates of total health literacy, functional health literacy, interactive health literacy, and critical health literacy among middle school students in Chongqing were 67.96%, 75.12%, 50.24%, and 72.21%, respectively. Among the 12 factors, low rates were observed in health decision-making, reasonable nutrition, and communication (41.52%, 46.09% and 62.18%, respectively). After controlling for related confounding factors, the results of the multivariate Logistic regression analysis indicated that the following factors affected the total health literacy of middle school students: the investigated region (OR=1.20); school segment (OR=1.35); relationship with mother (OR=1.52); relationship with teacher (OR=2.20); number of close friends (OR=1.68); and health education course (OR=1.52) (P<0.05). Conclusion The health literacy level of middle school students in Chongqing is relatively low. Therefore, it is necessary to focus on improving interactive health literacy in order to promote the healthy development of middle school students.