Objective: To explore the distribution characteristics of the influencing factors of injury among left behind primary school students, so as to provide a reference for identifying high risk injury groups and carrying out accurate injury intervention. Methods: From August 2021 to July 2022, a questionnaire survey was conducted among 3 769 students from grades 4 to 6 from nine primary schools in three townships in Pingliang City by using the a random cluster sampling method. Multiple correspondence analysis was used to analyze the influencing factors of injury. Results: The detection rate of injuries among non left behind pupils was 21.8%(573/2 631), whereas the detection rate of injuries among left behind pupils was 40.9%(466/1 138). In addition, a statistically significant difference was observed in the detection rate of injuries between left behind pupils and non left behind pupils ( χ 2=146.21, P <0.01). Among the injuries of left behind pupils, 263 had fall related injuries, accounting for the highest proportion ( 56.4 %). Whether it was an only child，and different grades, gender, personality, psychological status, monitoring type, and maternal education level were statistically significant ( χ 2=39.05, 96.69, 143.00, 155.80, 461.39, 285.35, 17.10, P <0.01). The multiple correspondence analysis category graph showed higher rates of fall injuries, blunt injuries and sharp injuries among boys, extroverted personality types, and left behind pupils whose grandparents were their legal guardians. Animal bites, burns and other injury types were higher among left behind pupils with an introverted personality, pupils in peer/other guardianship situations, and those with a sub mental health status. Unharmed left behind students mainly included those with intermediate personality and mental health characteristics. Conclusion The injury detection rate among left behind primary school students is high. Gender, personality type, guardianship type, and mental health status are closely related to injury. Extroverted boys under grandparents guardians are identified as high risk groups for injury prevention and control. Under the guidance of the precision prevention model, precision intervention strategies for all round high risk groups should be carried out in order to effectively reduce the occurrence of injuries among left behind pupils.

Objective:To analyze the HIV and HBV coinfection in HIV/AIDS cases who newly received highly active antiretroviral therapy during 2005-2019 in Jiangsu province.Methods:According to the base data of HIV/AIDS cases on HAART enrolled between January 2005 and December 2019; the National Information system was retrospectively collected for HIV/AIDS Control and Prevention of Chinese System Disease for Control and Prevention. Excel database was established, and statistical analysis was performed using the SPSS 16.0 software. A Chi-square test was used to assess differences in rates of HBsAg testing and HIV/HBV coinfection between potential risk factors. The unconditional logistic regression model entered risk factors with P values <0.05 in the Chi-square test. Results:There were 29 288 HIV/AIDS cases newly received HAART during 2005-2019. The rate of HBsAg test was 49.8% (14 594/29 288) the rate of HBsAg test increased from 0.0% (0/80)to 75.2%(3 448/4 586), showing an increasing trend year by year during 2005 to 2019. Among HIV/AIDS cases tested HBsAg, 81.6% (11 915/14 594) cases were from Jiangsu province; the ratio of male to female was 7.34∶1 (12 845∶1 749), the average age was (38.5±13.8) years old, 96.1% (14 023/14 594) were Han nationality,48.9% (7 131/14 594) of the HIV/AIDS cases married, 97.9%(14 294/14 594) were infected with HIV through homosexual and heterosexual transmission. Unconditional logistic regression modeling showed that the proportion of HIV/AIDS cases initiated HAART in 2015 or after that, married, not Jiangsu province resident, college education or above, and drug injection infected were more likely to have HBsAg testing. 8.6%(95% CI:8.2%-9.1%) were HBsAg positive. The HIV and HBV coinfection rates were more than 10% before 2016 while showed stability from 6.7% to 8.2% since 2016. Unconditional logistic regression modeling showed that the proportion of HIV/AIDS cases who were male, elder, married, non-Han, primary education or below were more likely to have HBV coinfection. Conclusion:More HBsAg testing should be strengthened when the HIV/AIDS cases initiated HAART in Jiangsu province, 2005-2019.

Objective T o study the effect of different attentional conditions on the event-related potential (E R P ) com ponents generated by the visual inform ation stim uli related to visual acuity, and provide a theoretical reference for clinical forensic visual objective evaluation. Methods W ith visual acuity opto-types as norm al form of visual inform ation stim uli, 15 volunteers as study subjects w ere supposed to ac-count the visual acuity optotypes under the attentional condition of visual stim uli. Furtherm ore, the sub-jects w ere required to listen to the storytelling carefully under the non-attentional condition of visual stim uli, and after the exam ination, they needed to answ er the story-related questions. A ll the E E G re-sults of tw o different attentional conditions from the subjects w ere recorded by 32 channel E R P system . Results U nder tw o attentional conditions, P 1 and P 300 com ponents w ere evoked by the visual acuity opto-types on supra-threshold and threshold visual acuity levels, w hile only P 1 com ponent w ere evoked by the visual acuity optotypes on sub-threshold levels. In the E R P w aveform s evoked by the visual acuity optotypes on supra-threshold, P 1 and P 300 am plitudes under attentional condition w ere larger than that un-der non-attentional condition. Conclusion A ttentional conditions can influence the detection of visual acuity. P 300 com ponent can be used to distinguish the visual acuity levels w ith supra-threshold and sub-threshold under non-attentional condition.

Objective T o explore the com position characteristic of event related potential (E R P ) in dif-ferent visual acuity levels, and to provide theoretical basis for the objective assessm ent of visual acuity. Methods M onocular stim ulus w as perform ed on 16 selected subjects. T he subjects w ere required to look straight at the screen ahead and count the am ount of stim uli from different directions. T he pictures of optotype stim ulus w hich corresponding to three different visual acuity levels w ere show ed in the center of the screen. The ERP results w ere recorded separately. Results (1) The P1 am plitudes of m atch stim uli recorded under the supra-threshold visual acuity level w ere higher than that of m atch stim uli recorded under the threshold and sub-threshold visual acuity levels. T here w as no significant difference betw een the P 1 am plitudes of m atch stim uli recorded under the threshold and sub-threshold visual acuity levels. T he tendency of conflict stim uli w as sim ilar to that of m atch stim uli under three visual acuity levels. (2) In the 340-500 m s post-stim ulus range, P 300 com ponent w as found under supra-threshold and threshold visual acuity levels; no P 300 com ponent w as found in corresponding tim e w indow under sub-threshold visual acuity. T he differences of P 300 am plitudes am ong three visual acuity levels w ere statistically significant. T he am plitudes from high to low w ere the supra-threshold, threshold and sub-threshold visual acuity levels. Conclusion E R P can be a potential new m ethod for the objective assessm ent of visual acuity in forensic m edicine.

Objective T o observe the changes of cystathionine β-synthase (C B S ) expression in the cere-bral cortex after brain contusion at different tim es. Methods A n experim ental m odel of traum atic brain injury (T B I) in m ice w as established by an im proved w eight-drop device. T hen W estern blotting and im m unohistochem ical exam ination w ere used to detect the C B S expression in cerebral cortex around in-jury at different tim e points (1 h, 6 h, 12 h, 1 d, 2 d, 3 d, 7 d). Results T he results of W estern blotting revealed that the expression level of C B S w as dow n-regulated and reached its low est level at the 3rd days after injury, and then restored to norm al level after 7 days. T he results of im m unohistochem istry show ed that C B S w as present in the norm al brain cortex. C B S expression gradually decreased at the 3rd days after injury, and then restored to norm al level after 7 days. Conclusion C B S has the potential to be a reference index for tim e estim ation after brain contusion in forensic practice.

Objective To report a pedigree with X?linked dominant protoporphyria(XLDPP), and to detect 5?aminolevulinic acid synthetase 2(ALAS2)gene mutations in this pedigree. Methods A clinical investigation was performed in a pedigree with XLDPP, and relevant data were collected from family members. A next?generation sequencing method was applied to screen possible mutation sites, and Sanger sequencing was performed to determine pathogenic gene mutations. Dermoscopy was conducted to observe skin lesions in the patients with XLDPP, and the Fotofinder system and very high frequency (VHF) ultrasound system were utilized to assess the severity of photodamage. Liver and gallbladder ultrasonography as well as blood examination were performed for all the family members. Results A deletion mutation, c.1706?1709ΔAGTG, was detected in the ALAS2 gene on the X chromosomes of all the patients in this family, which led to replacement or loss of 19-20 C?terminal residues through transcriptional frameshifting, and eventually caused an increase in ALAS2 activity. In the patients with XLDPP, skin photodamage was relatively severe;protoporphyrin?induced hepatobiliary damage was observed and aggravated with age;anemia and iron deficiency occurred sometimes. Conclusion The deletion mutation c.1706?1709ΔAGTG of the ALAS2 gene may be the underlying cause of XLDPP in this pedigree.

Construction of excellent course provides students with modern educational resources.Construction was focused on one main line,two dimensions,three aspects and with building frame,filling columns,putting into use,collecting feedback as well as modification and updating.Analysis was further made to avoid the common problems and phenomena such as displayed pages,limitation of share resources,low utilization of teaching resources and emphasis on construction,ignoring application and neglecting management.Some measures such as increasing the guidance of excellent courses and their promotion efforts,the establishment of an exchange platform and listening to feedback etc.are proposed.

OBJECTIVE: To investigate curative effect and importance of radiofrequency thermocoagulation onsemilunar ganglion of aged patients with recurrent trigeminal neuralgia. METHOD: 112 cases with recurrent trigeminal neuralgia were performed with radiofrequency thermocoagulation on semilunar ganglion by puncture through skin under local anesthesia. RESULT: The maintaining effective duration in 112 cases was 7.3 ± 1.3 years after primary therapy. After the first thermocoagulation, 89.28% (100/112) patients got the relief from pain immediately, 8 (7.14%) cases also recieved the same effect after twice treatment. However two cases (2.6%) had no effects. The total effective rate was 98.21%. During five follow-up years, VAS scores, dose of carbamazepine and satisfaction were better than those before the treatment. The effective rate was still over 57.5% within three years after the treatment. The recurrent risk increased obviously from 40 months after the treatment by Kaplan-Meier method. CONCLUSION Semilunar ganglion of radiofrequency thermocoagulation was an ideal option for old-age patients with trigeminal neuralgia. It can be performed repeatedly.
Aged ; Electrocoagulation ; Humans ; Recurrence ; Treatment Outcome ; Trigeminal Ganglion ; surgery ; Trigeminal Neuralgia ; surgery

Mild cognitive im pairm ent caused by craniocerebral traum a is the key points and difficulties in judicial authentication. This article has com parative analysis of eachmode of event-related potential (classical O ddball, E riksen flanker task and so on), which can provide a more objective m ethod for such craniocerebral traum a cases in clinical forensic judicial authentication.

Objective To investigate the role of intestinal fatty acid binding protein(I-FABP)in evaluating intestinal dysfunction of septic rats and the effect of glutamine on I-FABP expression.Methods Rats were divided into 3 groups,control group were only fed with Peptisorb,model group were fed with Peptisorb after intraperitoneal injection with E.coli endotoxin lipopolysaccharidegiven and glutamine group were added glutamine on basis of model group.The correlation between serum I-FABP level and intestinal mucosa damage index were analyzed and the concentrations of serum I-FABP in each group were observed and compared. Results The serum level of I-FABP in rats were correlated with the Chiu’s score of intestinal mucosa,mucosa thickness and villus length(P<0.05 ).Compared with control group,the concentration of serum I-FABP in model group and glutamine group were significantly increased(P<0.05),but which in glutamine group was lower than that in model group(P<0.05).Conclusions Serum I-FABP could be an non-invasive diagnosis index for evaluating acute intestinal dysfunction in septic rats.In addition,dietary glutamine supplementation may ameliorate sepsis-induced intestinal epithelial injury in rats.