Abstract To clarify the service targets, service contents, and safeguard mechanisms of the basic public service program for student vision health management, the study grounded in the current status of child and adolescent myopia prevention and control in China and integrated with the practical experience and innovative practices of Wuhan National Demonstration Area for Student Vision Health Management, takes education as the main thread and schools as the base, consolidating resources from multiple stakeholders including education administrative departments, schools, families, and professional technical service institutions. Centering on four core components—vision health education, monitoring and record keeping, risk prevention and control, and dynamic management, the study constructs a multi tiered basic public service system for vision health management of primary and secondary school students. It further proposes the use of an intelligent management platform and a "three tier color coded early warning" mechanism (red, yellow, blue) to prevent and control student myopia at the source, providing schools with replicable and operable implementation pathways to enhance the level of student vision health management.

Objective The study attempted to establish a less invasive model for dissecting and monitoring the sympathetic nerve in rats via a dorsal approach for subarachnoid block-related studies.Methods A traditional abdominal approach model and a new dorsal approach model were established in SD rats,and the modeling time of the two models was observed.The stability of the new model was evaluated by measuring blood pressure(BP),heart rate(HR),percentage change in lumbar sympathetic nerve activity(LSNA change％),norepinephrine(NE),and nitric oxide(NO)content after subarachnoid injection of bupivacaine.Results(1)Building a new model:the time required to create new models for the dorsal approach(DA)group was shorter than that for the traditional abdominal approach(VA)group,as shown by the result(P＜0.0001).(2)Evaluation of the new model:compared with the NS group,the MAP and SBP were lower at T2(5 min after injection of bupivacaine into the subarachnoid space)and T3(10 min)(P＜0.05);the LSNA change％was significantly different(P＜0.05);the concentration of NE was lower at T3(P＜0.05).Conclusions The study presents a novel lumbar sympathetic anatomy model using the dorsal approach for subarachnoid-related investigations,which was effectively employed to examine the impact of subarachnoid block anesthesia on lumbar sympathetic nerve activity.

Objective:To observe the effects of 12.5% carbohydrate (CHO) solution and medium chain triglycerides (MCT) solutions at various concentrations on gastric emptying, in order to determine the optimal MCT-CHO combination for enhanced recovery after surgery.Methods:This study was a prospective study. Ten healthy volunteers were selected to ingest 400 ml of the following 5 solutions every day: water, 12.5% CHO, 1% MCT, 2% MCT and 4% MCT. According to the above results, the optimal concentration of MCT solution was 2% MCT, showing comparable gastric emptying rate compared with 12.5% CHO solution. On this basis, combinations of MCT and CHO solutions were determined to be 30 energy % (EN%) MCT+70 EN% CHO and 20 EN% MCT+80 EN% CHO according to the energy distribution ratio. Then the volunteers were given 400 ml of the following 4 solutions every day: 12.5% CHO, 2% MCT, 30 EN% MCT+70 EN% CHO (equivalent to 2% MCT+8% CHO), and 20 EN% MCT+80 EN% CHO (equivalent to 4.4% MCT+10% CHO). Gastric emptying during fasting (T m) and immediately (T 1), 30 min (T 2), 60 min (T 3), 90 min (T 4) and 120 min after ingestion (T 5) were observed by antral ultrasonography. The degree of thirst, hunger, and anxiety was assessed by Visual Analogue Scale, and the taste was rated. Results:The gastric emptying rate in descending order was 20%EN MCT+80%EN CHO group>30%EN MCT+70%EN CHO group≈2％MCT group≈12.5%CHO group. There was no significant difference in gastric emptying rate between 30 EN% MCT+70 EN% CHO group and 12.5% CHO group ( P>0.05). The scores of thirst, hunger and anxiety in 30 EN% MCT+70 EN% CHO group at T 1 to T 5 were significantly lower than those at T m ( P<0.05). 30 EN% MCT+70 EN% CHO group showed the highest taste score. Conclusion:30 EN% MCT+70 EN% CHO solution has similar gastric emptying rate compared with 12.5% CHO solution. It can relieve thirst, hunger, anxiety and other subjective feelings caused by fasting, with tastes better than 12.5% CHO solution.

Objective The study attempted to establish a less invasive model for dissecting and monitoring the sympathetic nerve in rats via a dorsal approach for subarachnoid block-related studies.Methods A traditional abdominal approach model and a new dorsal approach model were established in SD rats,and the modeling time of the two models was observed.The stability of the new model was evaluated by measuring blood pressure(BP),heart rate(HR),percentage change in lumbar sympathetic nerve activity(LSNA change％),norepinephrine(NE),and nitric oxide(NO)content after subarachnoid injection of bupivacaine.Results(1)Building a new model:the time required to create new models for the dorsal approach(DA)group was shorter than that for the traditional abdominal approach(VA)group,as shown by the result(P＜0.0001).(2)Evaluation of the new model:compared with the NS group,the MAP and SBP were lower at T2(5 min after injection of bupivacaine into the subarachnoid space)and T3(10 min)(P＜0.05);the LSNA change％was significantly different(P＜0.05);the concentration of NE was lower at T3(P＜0.05).Conclusions The study presents a novel lumbar sympathetic anatomy model using the dorsal approach for subarachnoid-related investigations,which was effectively employed to examine the impact of subarachnoid block anesthesia on lumbar sympathetic nerve activity.

Objective:To study the subacute oral toxic effect of p-chloro-m-xylphenol on rats and provide a basis for its safety evaluation.Methods:SPF-grade Wistar rats were randomly divided into 4 groups according to body weight stratification randomization, with 20 rats in each group, half male and half female. The set concentrations of the p-chloro-m-xylphenol dose groups were 11.25, 22.50, and 45.00 mg/kg·BW respectively, with an intragastric volume of 10 ml/kg·BW. The blank control group was given the same amount of distilled water. The rats were treated with intragastric administration for 30 days. After intraperitoneal injection of 50 mg/kg·BW pentobarbital sodium for anesthesia, bloodletting and death, the organs were separated and weighed. Blood was collected from the abdominal aorta to determine the hematological and serum biochemical indicators of the whole blood of rats. Multiple groups comparison was performed by one-way analysis of variance, and pairwise comparison between groups was performed by the least significant difference test or Dunnett-t3 test.Results:The kidney weight in the 45.00 mg/kg·BW dose group of female rats [ (1.59±0.11) g] was lower than that in the blank control group [ (1.71±0.12) g], and the difference was statistically significant ( P<0.05) . The percentage of monocytes in the 11.25 mg/kg·BW dose group of male rats [ (4.81±0.74) %] was lower than that in the blank control group [ (5.86±0.58) %], the red blood cell count [ (6.93±0.26) ×10 12/L] and hemoglobin [ (134.30±4.95) g/L] in the 22.50 mg/kg·BW dose group of female rats were both lower than those in the blank control group[ (7.48±0.26) ×10 12/L, (146.20±4.42) g/L], the percentage of eosinophils in the 11.25 mg/kg·BW dose group of female rats [ (2.46±0.86) %] was higher than that in the blank control group [ (1.66±0.41) %], and the differences were statistically significant ( P<0.05) . Conclusion:P-chloro-m-xylphenol may have toxic effects on the blood system of rats, and the kidneys may be the potential target organs for its toxicity.

AIM:To investigate the modulatory role of E3 ubiquitin-protein ligase ITCH in Alzheimer disease(AD)-like pathology through the thioredoxin-interacting protein(TXNIP)-nucleotide-binding oligomerization domain-like receptor protein 3(NLRP3)signaling pathway using both in vivo and in vitro experimental models.METHODS:(1)Ten 5×FAD(AD model)mice and 10 wild-type(WT)mice at 2-,4-and 6-month-old were randomly allocated into AD and WT groups.Amyloid β-protein(Aβ)plaque burden in the brain was detected by thioflavin-S and immunofluorescence staining,with the latter method additionally applied to assess TXNIP protein expression.The protein levels of ITCH and TXNIP were determined by Western blot,while their interaction was verified by co-immunoprecipitation.(2)Mouse mi-croglia BV2 cells stimulated by lipopolysaccharide(LPS)were used to construct neuroinflammation model,and were di-vided into control(CON)group and LPS+ATP treatment group.The BV2 cells stimulated by Aβ were used to construct AD inflammation model.According to the different treatment time,they were divided into CON,and 12,24 and 48 h treatment groups.Western blot was used to evaluate the expression of ITCH,TXNIP,and NLRP3 inflammasome compo-nents(NLRP3 and caspase-1)as well as the downstream IL-1β.Adenovirus-mediated ITCH overexpression(OE-ITCH)in Aβ-stimulated BV2 cells comprised three experimental groups:negative control group,Aβ oligomer stimulation group,and OE-ITCH group,with subsequent immunoblotting of inflammatory mediators.RESULTS:The deposition of Aβ plaques in the cortex and hippocampus of 5×FAD transgenic mice exhibited an age-dependent progression(P<0.01).Compared with WT mice,the levels of TXNIP protein increased synchronously,and the levels of ubiquitin ligase ITCH was significantly down-regulated(P<0.05).Co-immunoprecipitation confirmed the interaction between ITCH and TXNIP proteins in the brain of 2-and 4-month-old 5×FAD mice,which exhibited marked attenuation by 4 months of age.In BV2 microglial models,Aβ/LPS stimulation provoked significant ITCH suppression,concurrently up-regulating TXNIP,core NLRP3 inflammasome components(NLRP3 and caspase-1),and downstream IL-1β(P<0.05).Overexpression of ITCH significantly inhibited Aβ-induced activation of TXNIP and NLRP3 and therelated inflammatory factors in BV2 cells.CONCLUSION:The results of in vitro and in vivo experiments showed that ITCH protein exerts effects against AD-like pathology by inhibiting the expression of TXNIP-NLRP3 signaling pathway.

Tumor-related insomnia is one of the common complications of tumor patients,which is secondary to tumor disease and related to tumor disease itself or tumor treatment.Combined with the unique pathogenesis of"heat-toxicity internal stagnation"of tumor-related insomnia,the important treatment methods are to clear away heat,attack toxicity,regulate qi and supplement healthy qi.This article explained the research status,etiology and pathogenesis,treatment principles of the disease,in order to provide new ideas and methods for the differentiation and treatment of tumor-related insomnia in TCM.

Tumor-related insomnia is one of the common complications of tumor patients,which is secondary to tumor disease and related to tumor disease itself or tumor treatment.Combined with the unique pathogenesis of"heat-toxicity internal stagnation"of tumor-related insomnia,the important treatment methods are to clear away heat,attack toxicity,regulate qi and supplement healthy qi.This article explained the research status,etiology and pathogenesis,treatment principles of the disease,in order to provide new ideas and methods for the differentiation and treatment of tumor-related insomnia in TCM.

Objective:To observe the effects of 12.5% carbohydrate (CHO) solution and medium chain triglycerides (MCT) solutions at various concentrations on gastric emptying, in order to determine the optimal MCT-CHO combination for enhanced recovery after surgery.Methods:This study was a prospective study. Ten healthy volunteers were selected to ingest 400 ml of the following 5 solutions every day: water, 12.5% CHO, 1% MCT, 2% MCT and 4% MCT. According to the above results, the optimal concentration of MCT solution was 2% MCT, showing comparable gastric emptying rate compared with 12.5% CHO solution. On this basis, combinations of MCT and CHO solutions were determined to be 30 energy % (EN%) MCT+70 EN% CHO and 20 EN% MCT+80 EN% CHO according to the energy distribution ratio. Then the volunteers were given 400 ml of the following 4 solutions every day: 12.5% CHO, 2% MCT, 30 EN% MCT+70 EN% CHO (equivalent to 2% MCT+8% CHO), and 20 EN% MCT+80 EN% CHO (equivalent to 4.4% MCT+10% CHO). Gastric emptying during fasting (T m) and immediately (T 1), 30 min (T 2), 60 min (T 3), 90 min (T 4) and 120 min after ingestion (T 5) were observed by antral ultrasonography. The degree of thirst, hunger, and anxiety was assessed by Visual Analogue Scale, and the taste was rated. Results:The gastric emptying rate in descending order was 20%EN MCT+80%EN CHO group>30%EN MCT+70%EN CHO group≈2％MCT group≈12.5%CHO group. There was no significant difference in gastric emptying rate between 30 EN% MCT+70 EN% CHO group and 12.5% CHO group ( P>0.05). The scores of thirst, hunger and anxiety in 30 EN% MCT+70 EN% CHO group at T 1 to T 5 were significantly lower than those at T m ( P<0.05). 30 EN% MCT+70 EN% CHO group showed the highest taste score. Conclusion:30 EN% MCT+70 EN% CHO solution has similar gastric emptying rate compared with 12.5% CHO solution. It can relieve thirst, hunger, anxiety and other subjective feelings caused by fasting, with tastes better than 12.5% CHO solution.

Objective To investigate the reproductive and developmental effects of Clothianidin in rats. Methods Clothianidin was administrated by diet to both parental and first filial (F 1) generations of rats at the dosages of 0, 30.51, 110.84 and 304.26 mg/(kg·d) in females, and 0, 26.45, 92.69 and 279.42 mg/(kg·d) in males. Clothianidin was administered through diet to male and female rats for 8 weeks before mating. Clothianidin was administered to female rats in the parental and F1 generations during mating, gestation and lactation periods. During the test, toxicity performance was observed, reproduction index was calculated, and pathological examination was carried out. Results The body weights of rats in the parent and F1 generations in the high-dose group were lower than those in the control group during pre-mating exposure and at various time points during pregnancy and lactation (P<0.05). The pregnancy rates of parental and F1 generations in the high-dose group were lower than those of the control group (48.57% vs 71.43%, 45.71% vs 80.00%, P＜0. 05). Sperm concentration and sperm motility of the parental generation were lower than those of the control group [(42.55±12.87) vs (53.84±7.65) ×106/ml, (58.94±10.59) vs (65.59±6.03), （P＜0.05）]. Sperm concentration and sperm motility of the F1 generation were lower than those of the control group [(41.64±12.42) vs (53.09±9.48), (55.13±9.19) vs (64.53±6.31), (P＜0.05). Conclusion Exposure to clothianidin has reproductive toxicity to Wistar rats, and the no-observed adverse effect level (NOAEL) in the two-generation reproductive toxicity test is 92.69 mg/kg·BW for males and 110.84 mg/kg·BW for females in Wistar rats.