Objective: To examine the mediating effect of resilience on AIDS-related stress and patient-reported outcome among elderly cases with HIV/AIDS, so as to provide the basis for promoting mental health and improving health outcomes of this population. Methods: From June to July 2024, elderly cases with HIV/AIDS receiving treatment in the infectious diseases department of a tertiary-level hospital in Sichuan Province and undergoing follow-up management at 12 community health service centers in Wuhou District, Chengdu City, Sichuan Province, were selected as study participants using convenience sampling method. Data on demographic information, duration since confirmed diagnosis and the most recent CD4+T lymphocyte count were collected through questionnaire surveys. The Chinese versions of the HIV/AIDS Stress Scale, the Chinese versions of the 10-item Connor-Davidson Resilience Scale, and the Patient-Reported Outcome Scale for Elderly HIV/AIDS Patients were used to assess AIDS-related stress, resilience, and patient-reported outcome, respectively. Structural equation modeling was performed using Mplus 8.3 software to analyze the mediating effect of resilience on AIDS-related stress and patient-reported outcome. The Bootstrap method was employed to test the significance of the mediating effect. Results: A total of 424 elderly HIV/AIDS cases were included, with a mean age of (62.04±8.73) years. Among them, 315 (74.29%) were males and 109 (25.71%) were females. The median scores were 23.00 (interquartile range, 11.00) points for AIDS-related stress, 30.00 (interquartile range, 7.00) points for resilience, and 363.45 (interquartile range, 53.03) points for the total score of patient-reported outcome. Resultsof the mediation effect analysis revealed that AIDS-related stress had a direct negative effect on patient-reported outcome (β=-0.608, 95%CI: -0.742 to -0.465). It also exerted an indirect negative effect on patient-reported outcome through the mediating role of resilience (β=-0.258, 95%CI: -0.364 to -0.158), with the mediating effect accounting for 29.79% of the total effect. Conclusion AIDS-related stress among elderly cases with HIV/AIDS can directly or indirectly negatively affect patient-reported outcome through resilience.

【Objective】 To compare the desalination effects of five desalination methods and their effects on the components for human coagulation factor Ⅷ(FⅧ), and provide reference for selection of protein desalination methods. 【Methods】 Sephadex G-25 Medium gel, Fractogel EMD BioSEC gel, ultrafiltration, room temperature dialysis and 4℃ dialysis were used to desalt human FⅧ. The desalination effect was evaluated by the removal rate of Na +, citrate ion and glycine. FⅧ protein recovery, FⅧ activity (FⅧ∶C), VWF antigen (VWF∶Ag), VWF activity(VWF∶Ac), VWF polymers and SDS-PAGE analysis before and after desalination were compared to evaluate the effect of desalination on FⅧ components. 【Results】 In terms of desalination effect, the removal rate of Na⁺ was the lowest in ultrafiltration desalination, while that of Fractogel EMD BioSEC gel was the highest [(97.90±0.06) % vs (99.82±0.07) %]. Except that there was no statistical significance between Sephadex G-25 Medium gel desalination and Fractogel EMD BioSEC gel desalination (P=0.90), the removal rates of the other four methods were statistically significant. The removal rate of glycine was the lowest in ultrafiltration desalination, wihle that of Fractogel EMD BioSEC gel desalination was the highest [(95.78±0.42) % vs (99.81±0.08) %]. Significant difference in glycine removal was noticed in ultrafiltration desalination, but not among the other four desalination methods. There was no significant difference in the removal rate of citrate ions among the five methods (P=0.85). For the effect of FⅧ components, FⅧ∶C, VWF∶Ag, VWF∶Ac and protein recovery rates of ultrafiltration desalination were the highest, with (18.34±1.99) IU/mL, (11.81±0.33) IU/mL, (12.26±0.58) IU/mL and (97.13±1.37) %, respectively. There was no significant change in VWF∶Ac/VWF∶Ag before and after desalination by the five methods. SDS-PAGE and VWF polymer analysis showed that different desalination methods had no significant impact on protein composition. 【Conclusion】 Although different desalination methods had no significant effect on the composition of FⅧ protein, the desalination effect was different. Moreover, different desalination methods had significant effects on protein recovery, FⅧ∶C, VWF∶Ag and VWF∶Ac. The selection of desalination methods should be more considered during protein processing,

Objective:To investigate the clinical effect of orbital septal fascia advancement in the correction of mild blepharoptosis.Methods:From December 2016 to January 2020, a total of 77 eyes of 56 patients with mild congenital ptosis who underwent double eyelid surgery were treated. The method of orbital septal fascia advancement was used to correct mild ptosis. Specifically, during double eyelid reconstruction, the orbital septum was opened and the orbital septal fascia about 2 mm in front of the fold was preserved. The posterior lip of the orbital septal fascia was pulled down to the upper part of the tarsal plate, and fixed on the tarsal plate with 3 stitches of 5-0 nylon suture, and appropriate adjustments were made to correct mild ptosis.Results:Patients (56 eyes of 40 cases) were followed up from 6 to 12 months (average 7.4 months), 46 eyes (82.1%) were satisfied with blepharoptosis correction, 8 eyes (14.3%) were basically satisfied with blepharoptosis correction, and 2 eyes (3.6%) were dissatisfied with blepharoptosis correction. 45 eyes (80.4%) were satisfied with blepharoplasty, 7 eyes (12.5%) were basically satisfied with blepharoplasty, and 4 eyes (7.1%) were dissatisfied with blepharoplasty. No double eyelid folds disappeared after surgery, and there were no complications such as incomplete closure, conjunctival prolapse, or exposed keratitis.Conclusions:The correction effect of blepharoptosis is good, and the reconstruction structure is stable with natural appearance, fast recovery and high satisfaction. Therefore, the method can be popularized.

【Objective】 To explore the risk of Alzheimer′s disease (AD) transmitted by blood transfusion. 【Methods】 There were 10 APP/PS1 mice of 3, 6 and 9 months old, half female and half male, and the cognitive and behavioral abilities of C57 mice of the same age were measured, and the blood of the oldest APP/PS1 mice with no behavioral changes were collected to detect the contents of Aβ40 and Aβ42. The polymers Aβ40 and Aβ42 were prepared and Western blotting analysis was conducted. Kunming mice aged from 6 to 7 months were randomly divided into 6 groups (10 mice/ group, half male and half female). The blood of APP/PS1 mice was injected intravenously in experimental group 1-2(100 μL/mouse) with high frequency injection (3 times/week) and low frequency injection (1 time/week), respectively. In experimental group 3-4, Aβ40 and Aβ42 polymerized mixture (100 μL/mouse) were injected in high frequency and low frequency, respectively. The control group 1-2 was injected with the same amount of normal saline, with high frequency and low frequency, respectively. The above groups were injected for 4 weeks, and the cognitive and behavioral abilities were tested and analyzed one week after injection. Finally, the contents of Aβ40 and Aβ42 in blood of Kunming mice were detected. 【Results】 Change in cognitive and behavioral ability showed in 9 months old APP/PS1 mice, but not in 3 and 6 months old APP/PS1 mice. The contents of Aβ40 and Aβ42 (pg/mL) in blood of 6-7 months old APP/PS1 mice were 418.40±2.18 and 15.68±0.20, respectively. Except for monomers, most of the polymerized mixtures of Aβ40 and Aβ42 were dimers and trimers. In both high frequency and low frequency, Kunming mice transfused with blood of APP/PS1 mice (experimental group 1-2) showed a certain degree of anxiety-like behavior and short-term memory shortening in open-field test and conditioned fear test, but without significant difference. There was no significant difference in open field test, new object recognition, Barnes maze and cognitive behavior analysis of conditioned fear between experimental group 3-4 and the control group. The levels of blood Aβ40 and Aβ42(pg/mL) of Kunming mice detected by ELISA were 10.30±0.08 and 3.360±0.005, respectively, and there was no significant difference between the two groups. 【Conclusion】 Blood transfusion of APP/PS1 mice and the mixture of Aβ40 and Aβ42 have no significant effect on the cognitive function of healthy Kunming mice in a short time, and the risk of AD transmission is relatively low.

Objective:The paper seeks to explore the characteristics of myeloid tumors with genetic DDX41 gene mutations,especially focusing on the understanding and treatment of acute myeloid leukemia with germline/somatic DDX41 mutation. Methods:One AML patient with germline/somatic DDX41 mutation who was diagnosed by using morphology,immunology,cytogenetics and molecular biology in Shanghai Shidong Hospital was retrospectively analyzed,and the patient was treated with lenalidomide combined with decitabine,and the literatures were reviewed. Results:The patient obtained complete remission after the therapy and there were no relevant adverse reactions to the treatment. Conclusion:The DDX41 gene mutations have effects on the prognosis and treatment of myeloid malignancies,and lenalidomide combined with decitabine is effective in acute myeloid leukemia with germline/somatic DDX41 mutation.The germline mutation status should be identified and confirmed early.

【Objective】 To investigate the effect of intravenous immunoglobulin(IVIG) with different Aβ antibody content on the cognitive function of Alzheimer′s disease model mice. 【Methods】 IVIG from 8 domestic blood products companies were selected. Enzyme-linked immunosorbent assay(ELISA) was used to detect the content of Aβ40/42 antibody. Three kinds of IVIG with high, middle and low Aβ42/40 antibody levels were selected to treat 3xTg-AD mice. Forty 3-month-old 3xTg-AD mice were randomly divided into 4 groups with 10 mice in each group(half male and half female). Three treat groups were intraperitoneally injected with three kinds of IVIG with 1g·kg^-1 for 12 weeks(twice a week). The controls were injected with the same volume of saline. Behavioral tests were performed immediately by using the mouse behavior analysis system after a total of 24 injections. 【Results】 The concentrations of antibodies(μg/mL) against Aβ40 monomer in IVIG ranged 0.7±0.05 to 3.1±0.05, concentrations of antibodies against Aβ40 oligomer ranged 11.7±0.7 to 32.0±2.2, concentrations of antibodies against Aβ42 monomer ranged 1.8±0.1 to 27.9±0.3, and concentrations of antibodies against Aβ42 oligomeric ranged 2.3±0.1 to 49.4±2. High(IVIG-1), medium(IVIG-8) and low(IVIG-6) IVIG were selected for mice study. In the open field test, the time of four groups of mice entering the central area(s) was 0.5±0.9, 23.4±6.1(P<0.0001), 4.6±2.8 and 2.6±2.3, respectively; the number of feces(grains) was 1.6±0.7(P<0.0001), 1.2±0.4(P<0.0001), 2.4±0.5(P<0.001) and 3.8±0.8, respectively. In the novel object recognition test, the scores of exploring new objects were 71.3±29.5(P<0.05), 71.8±20.5(P<0.05), 75.9±26.9(P<0.01) and 25.6±23.7, respectively. In the Barnes maze test, the time of exploring the target hole in the IVIG-8 group was significantly longer than that in the control on the 6^th day(50.3±19.3 vs 21±14.6, P<0.05) and the 13^th day(58.2±20.9 vs 19.2±15.9, P<0.005), but there was no significant difference between the IVIG-1, 6 groups and the control. 【Conclusion】 There is a significant difference in the level of Aβ40/42 antibody among 8 kinds of domestic IVIG. Domestic IVIG could improve the cognitive function of 3-month-old 3xTg-AD mice after continuous intervention for 3 months. The improvement effect, however, was related to the Aβ antibody in IVIG, but not to the antibody concentration.

Objective:To investigate the effects of hyperbaric oxygen therapy (HBOT) on neurological function, Th17/Treg levels, and TLR2/NF-κB pathway in children with viral encephalitis (VE).Methods:A total of 76 children with VE admitted to the Dadukou People’s Hospital between April 2017 and April 2019 were selected as the research subjects and randomly assigned to two groups ( n=38) by the random number table method. The children in the control group received conventional treatment, and those in the HBOT group additionally received HBOT. The clinical treatment effects, the results of electroencephalogram (EEG) examination, the mini-mental state examination(MMSE), the serum inflammatory factors, the central nerve specific protein (S100β), the neuron-specific enolase (NSE), the peripheral blood Th17/ regulatory T cells (Treg), and TLR2/NF-κB pathway levels were compared. There were no significant differences in those indicators between the two groups before treatment ( P>0.05). Results:The time period for the clinical symptoms to disappear in the HBOT group was significantly shorter than that in the control group ( P<0.05). The times of seizure onset in the HBOT group were significantly less than those in the control group ( P<0.05). After treatment, the proportions of moderate and severe EEG abnormalities in the HBOT group were significantly lower than those in the control group ( P<0.05), the proportion of EEG returning to normal state was significantly higher than that in the control group ( P<0.05), and the recovery time period of EEG in the HBOT group was significantly shorter than that in the control group ( P<0.05). After treatment, the MMSE score of the HBOT group was higher than that of the control group [(28.16±8.29)>(20.21±4.40), P<0.05]. The levels of IL-1, CRP, S100β, and NSE in the HBOT group were significantly lower than those in the control group ( P<0.05). After treatment, the level of Th17 in the HBOT group was significantly lower than that in the control group [(0.024±0.004)% vs. (0.028±0.01)%, P<0.05], and the level of Treg was significantly higher than that in the control group [(0.016±0.003)% vs. (0.014±0.004)%, P<0.05]. The levels of TLR2, Myd88, and NF-κB protein in the HBOT group were significantly lower than those in the control group ( P<0.05). No HBOT-related adverse reaction was found in the HBOT group. Conclusion:The treatment combined with HBOT can improve the curative effect in the children with VE, reduce the times of seizure onset, and protect brain. This may be related to the role of HBOT in inhibiting TLR2/NF-κB pathway and regulating the balance of Th17/Treg.

Objective:To investigate the effects of hyperbaric oxygen therapy (HBOT) on neurological function, Th17/Treg levels, and TLR2/NF-κB pathway in children with viral encephalitis (VE).Methods:A total of 76 children with VE admitted to the Dadukou People’s Hospital between April 2017 and April 2019 were selected as the research subjects and randomly assigned to two groups ( n=38) by the random number table method. The children in the control group received conventional treatment, and those in the HBOT group additionally received HBOT. The clinical treatment effects, the results of electroencephalogram (EEG) examination, the mini-mental state examination(MMSE), the serum inflammatory factors, the central nerve specific protein (S100β), the neuron-specific enolase (NSE), the peripheral blood Th17/ regulatory T cells (Treg), and TLR2/NF-κB pathway levels were compared. There were no significant differences in those indicators between the two groups before treatment ( P>0.05). Results:The time period for the clinical symptoms to disappear in the HBOT group was significantly shorter than that in the control group ( P<0.05). The times of seizure onset in the HBOT group were significantly less than those in the control group ( P<0.05). After treatment, the proportions of moderate and severe EEG abnormalities in the HBOT group were significantly lower than those in the control group ( P<0.05), the proportion of EEG returning to normal state was significantly higher than that in the control group ( P<0.05), and the recovery time period of EEG in the HBOT group was significantly shorter than that in the control group ( P<0.05). After treatment, the MMSE score of the HBOT group was higher than that of the control group [(28.16±8.29)>(20.21±4.40), P<0.05]. The levels of IL-1, CRP, S100β, and NSE in the HBOT group were significantly lower than those in the control group ( P<0.05). After treatment, the level of Th17 in the HBOT group was significantly lower than that in the control group [(0.024±0.004)% vs. (0.028±0.01)%, P<0.05], and the level of Treg was significantly higher than that in the control group [(0.016±0.003)% vs. (0.014±0.004)%, P<0.05]. The levels of TLR2, Myd88, and NF-κB protein in the HBOT group were significantly lower than those in the control group ( P<0.05). No HBOT-related adverse reaction was found in the HBOT group. Conclusion:The treatment combined with HBOT can improve the curative effect in the children with VE, reduce the times of seizure onset, and protect brain. This may be related to the role of HBOT in inhibiting TLR2/NF-κB pathway and regulating the balance of Th17/Treg.

Objective:To investigate the association of WWP2 single nucleotide polymorphism (rs3790088, rs4247109) with delayed encephalopathy after acute carbon monoxide poisoning (DEACMP) , and explore the influences of DEACMP genetic predisposition. Methods:From November 2006 to December 2017, 235 DEACMP cases and 429 acute carbon monoxide poisoning (ACMP) cases were selected. All ACMP patients were followed up for more than 90 days without DEACMP. The DNA in all blood samples were extracted with the blood Genome DNA Extraction Kit. The method of Sequenom Mass Array SNP technique was used to detect the genotype and allele of WWP2. All DEACMP patients were assessed every 3 days after hospitalization by the Hasegawa Dementia Scale (HDS) and Activity of Daily Living Scale (ADL) . The distribution of genotypes in conformty with Hardy-Weinderg law was analyzed by goodness-of-fit χ 2 test, and χ 2 test was used for association analysis. Results:For rs3790088, there were 226 DEACMP cases and 414 ACMP cases. For rs4247109, there were 234 DEACMP cases and 428 ACMP cases. For rs3790088 and rs4247109 in WWP2 gene: there were not significant differences in the gene genotype distribution and allele frequency of both DEACMP group and ACMP group ( P>0.05) . According to gender, there were not significant differences in WWP2 gene genotype distribution and allele frequency between two female groups and two male groups ( P>0.05) . After analysis by genetic model, the genotype distributions in both DEACMP group and ACMP group were not significantly differences in three genetic models (codominant genetic model, recessive genetic model and dominant genetic model, P>0.05) . Conclusion:It has not confirmed the genetic correlation between the two gene single nucleotide polymorphisms (rs3790088, rs4247109) of WWP2 gene and the incidence of DEACMP.

Objective:To investigate the association of WWP2 single nucleotide polymorphism (rs3790088, rs4247109) with delayed encephalopathy after acute carbon monoxide poisoning (DEACMP) , and explore the influences of DEACMP genetic predisposition. Methods:From November 2006 to December 2017, 235 DEACMP cases and 429 acute carbon monoxide poisoning (ACMP) cases were selected. All ACMP patients were followed up for more than 90 days without DEACMP. The DNA in all blood samples were extracted with the blood Genome DNA Extraction Kit. The method of Sequenom Mass Array SNP technique was used to detect the genotype and allele of WWP2. All DEACMP patients were assessed every 3 days after hospitalization by the Hasegawa Dementia Scale (HDS) and Activity of Daily Living Scale (ADL) . The distribution of genotypes in conformty with Hardy-Weinderg law was analyzed by goodness-of-fit χ 2 test, and χ 2 test was used for association analysis. Results:For rs3790088, there were 226 DEACMP cases and 414 ACMP cases. For rs4247109, there were 234 DEACMP cases and 428 ACMP cases. For rs3790088 and rs4247109 in WWP2 gene: there were not significant differences in the gene genotype distribution and allele frequency of both DEACMP group and ACMP group ( P>0.05) . According to gender, there were not significant differences in WWP2 gene genotype distribution and allele frequency between two female groups and two male groups ( P>0.05) . After analysis by genetic model, the genotype distributions in both DEACMP group and ACMP group were not significantly differences in three genetic models (codominant genetic model, recessive genetic model and dominant genetic model, P>0.05) . Conclusion:It has not confirmed the genetic correlation between the two gene single nucleotide polymorphisms (rs3790088, rs4247109) of WWP2 gene and the incidence of DEACMP.