Objective: To investigate the intentions of mothers of ageappropriate girls in Qingdao to vaccinate their daughters against human papillomavirus (HPV), so as to provide theoretical guidance for targeted health education in the future. Methods: A multistage random sampling method was adopted to conduct a crosssectional study among 2 244 mothers of girls aged 12-14 years in Qingdao from March to December 2023. The Mann-Whitney U test was used for group comparisons, and Logistic regression was performed to analyze the factors that influenced maternal intention to vaccinate their ageappropriate daughters against HPV. Results: Among the surveyed mothers, 89.22% (n=2 002) intended to vaccinate their daughters against HPV, and 68.58% (n=1 539) had fully vaccinated or had plans to complete it for themselves. The knowledge score of mothers intended to vaccinate their daughters was 10 (8, 11). The multivariate Logistic regression analysis showed that mothers aged >45 years (OR=0.19), those with an annual family income of 60 000-<150 000 yuan (OR=0.65), 150 000-<300 000 yuan (OR=0.58), 300 000-500 000 yuan (OR=0.22), and those with higher knowledge scores (OR=0.90) were more likely to vaccinate their daughters (P<0.05). Mothers with a junior college or undergraduate degree (OR=1.66), those who never or occasionally screened for HPV (OR=1.58), those who were intended to be vaccinated, not planning to complete the fullcourse vaccination, or overaged and unvaccinated (OR=7.13), those who were not concerned about their daughters HPV infection (OR=2.54), and those whose daughters were not in adolescence (OR=1.93) were less intended to vaccinate their daughters (P<0.05). The primary reasons for vaccine hesitancy were vaccine safety concerns (65.06%), followed by the belief of mothers that "the children is to young, and can be vaccinated when they are older" (13.25%). Conclusions Mothers of eligible girls in Qingdao have relatively higher intentions to vaccinate their daughters against HPV, and willingness is influenced by factors such as the mothers vaccination status, knowledge level, and daughters development stage. It is recommended to strengthen targeted health education, improve the cognitive level and acceptance of mother, and increase the vaccination rate of HPV vaccines.

AIM: To investigate the effect of corneal topography-guided phacoemulsification with transparent corneal incision on cataract patients.METHODS:A total of 92 cataract patients(92 eyes)admitted to our hospital from February 2021 to February 2023 were prospectively selected and randomly divided into two groups: the control group(46 eyes)received the conventional 11:00 clear corneal incision scheme, and the study group(46 eyes)received the steepest meridian clear corneal incision scheme. The uncorrected visual acuity, corneal surface morphology indicators, including surface regularity index(SRI), surface asymmetry index(SAI), and cylinder(CYL), subjective dry eye symptoms questionnaire scoring scale(SDES), tear film break-up time(BUT), and complications were compared between the two groups.RESULTS:All patients completed the follow-up. The uncorrected visual acuity of the study group was significantly better than that of the control group at 1 wk, 1 and 3 mo after surgery(all P<0.05); there were statistical significance in the SAI and CYL of both groups of patients at 3 mo after surgery(all P<0.05); the fluctuation levels of SDES and BUT in the study group were significantly lower than those in the control group at different time points after surgery(all P<0.05); and there was no statistical difference in complications between the two groups(P>0.05).CONCLUSION:Under the guidance of corneal topography, phacoemulsification through the transparent corneal incision of the steepest meridian of the cornea can improve the uncorrected visual acuity of cataract patients, restore the corneal surface morphology, and have few complications.

AIM: To investigate the effect of corneal topography-guided phacoemulsification with transparent corneal incision on cataract patients.METHODS:A total of 92 cataract patients(92 eyes)admitted to our hospital from February 2021 to February 2023 were prospectively selected and randomly divided into two groups: the control group(46 eyes)received the conventional 11:00 clear corneal incision scheme, and the study group(46 eyes)received the steepest meridian clear corneal incision scheme. The uncorrected visual acuity, corneal surface morphology indicators, including surface regularity index(SRI), surface asymmetry index(SAI), and cylinder(CYL), subjective dry eye symptoms questionnaire scoring scale(SDES), tear film break-up time(BUT), and complications were compared between the two groups.RESULTS:All patients completed the follow-up. The uncorrected visual acuity of the study group was significantly better than that of the control group at 1 wk, 1 and 3 mo after surgery(all P<0.05); there were statistical significance in the SAI and CYL of both groups of patients at 3 mo after surgery(all P<0.05); the fluctuation levels of SDES and BUT in the study group were significantly lower than those in the control group at different time points after surgery(all P<0.05); and there was no statistical difference in complications between the two groups(P>0.05).CONCLUSION:Under the guidance of corneal topography, phacoemulsification through the transparent corneal incision of the steepest meridian of the cornea can improve the uncorrected visual acuity of cataract patients, restore the corneal surface morphology, and have few complications.

In order to mine candidate vaccine antigens against ticks and to control ticks safely and effectively,the aim of this study was to immunize rabbits with purified aquaporins(AQPs)rD-mAQP1,rDmAQP2 and rDmAQP3 of Dermacentor marginatus.Blood collections for Western blot and ELISA tests were performed.The anti-tick challenge was conducted.The optimal expression conditions of rDmAQP1,rDmAQP2 and rDmAQP3 were screened by SDS-PAGE gel electrophore-sis.The three recombinant proteins were purified by HisSepNi-NTA6FF purification column.Rab-bits were divided into four groups of three rabbits each,including a control group and three immu-nized groups.The three purified recombinant proteins were separately immunized to three groups of rabbits,and the rabbits were immunized once on the 0th,14th and 21st day.Blood samples were collected every 7 days to prepare polyclonal antibodies.The reactivity was detected by Western blot and the antibody titer was detected by ELISA.Tick challenge test was carried out after the anti-body titer increased.The results showed that the optimal expression conditions for rDmAQP1 were induced for 8 h at IPTG concentration of 1.0 mmol/L and 37 ℃;the optimal expression conditions for rDmAQP2 were induced for 7 h at IPTG concentration of 1.0 mmol/L and 37 ℃;and the opti-mal expression conditions for rDmAQP3 were induced for 5 h at IPTG concentration of 1.0 mmol/L and 37 ℃.Western blot results showed that rDmAQP1,rDmAQP2 and rDmAQP3 all had certain reactivity.The ELISA results showed that the antibody titers of rabbits immunized with rD-mAQP1,rDmAQP2 and rDmAQP3 were as follows:the total anti-tick effect of rDmAQP1 protein was 79.74％,and the inhibition rates on average full-blooded tick weight,average egg weight and average egg hatching rate were 9.43％,25.17％and 63.81％,respectively.The total anti-tick effect of rDmAQP2 protein was 78.78％,and the inhibition rates of average full-blooded tick weight,av-erage egg weight and average egg hatching rate of Dermacentor marginatus were 8.30％,20.14％and 68.26％,respectively.The total anti-tick effect of rDmAQP3 protein was 87.91％,and the inhi-bition rates of average full-blooded tick weight,average egg weight and average egg hatching rate were 3.23％,22.47％and 80.5％,respectively.Through serological test and anti-tick test,it has been found that rDmAQP1,rDmAQP2 and rDmAQP3 all have the potential of candidate antigens against ticks,among which rDmAQP3 has the best immune effect,which lays a foundation for the study of the function of rDmAQP1,rDmAQP2 and rDmAQP3.

In order to investigate the mechanism of 3-hydroxy-3-methylglutaryl-CoA reductase(HMGCR)on liver bile acid(BAs)and lipid metabolism of dairy cows with fatty liver,A liver lip-id accumulation model was established by isolating primary calf hepatocytes and treating them with high concentration of non-esterified fatty acids(NEFA)in vitro.Then,HMGCR overex-pressed adenovirus(Ad-HMGCR)and overexpressed adenovirus control(Ad-GFP)were added.Hepatocyte triglyceride(TAG)was detected by the kit,lipid droplet changes were detected by lip-id droplet fluorescence,and BAs synthesis,fatty acid synthesis and oxidation factor changes were detected by real-time fluorescence quantitative PCR.The results showed that TAG content and lip-id droplet fluorescence were significantly reduced in Ad-HMGCR+NEFA group compared with Ad-GFP+NEFA group.Real-time fluorescence quantitative PCR results showed that CYP7A1,CYP8B1,CYP7B1 and CYP27A1 of hepatocyte BAs synthesis factors in Ad-HMGCR+NEFA group,BAs transporters ABCC2 and ABCB11 and fatty acid synthesis factors ACC1,FAS and SREBP1C were significantly lower than those in Ad-GFP+NEFA group.The levels of BAs syn-thesis factor FXR and lipid oxidation factor CPT1A in Ad-HMGCR+NEFA group were higher than those in Ad-GFP+NEFA group.The results showed that overexpression of HMGCR could significantly reduce BAs and lipid accumulation in the liver of dairy cows with fatty liver.

Objective Based on latent growth mixture model(LGMM)and China Health and Retirement Longitudinal Survey(CHARLS)Phase 3 tracking data,to investigate the development trajectory and influencing factors of the cognitive level of the elderly.Methods The data were from the data of CHARLS in 2013,2015,and 2018,including a total of 4662 elderly people aged 60 and above as research samples.The cognitive level of the elderly was assessed using the MMSE scale.Using the Mplus tool to construct an LGMM model suitable for cohort data to explore the trajectories of cognitive level changes in different elderly groups,examining time-constant factors(gender,age,education level,marital status,smoking,drinking)and time-varying factors(daily life activity ability,sleep duration,subjective life satisfaction)on the cognitive level of the elderly.Results According to the relevant indicators,the development trend of the cognitive level of the elderly can be divided into three types,namely the C1 slow decline group(35.2%),the C2 rapid decline group(20.6%)and the C3 stable group(44.2%).The cognitive level of people showed an overall downward trend with the passage of time.The cognitive level development trajectories of the three groups had significant time effects.The cognitive level of the C2 rapid decline group declined rapidly with time.The cognitive level of and the C1 slow decline group decreased slowly over time,and the cognitive level of the C3 stable group did not change significantly and was in a steady state.Conclusion The developmental trajectory of the cognitive level of the elderly has significant group heterogeneity and individual differences,and there are different types of development trends.

Objective:To seek any relationship between the single nucleotide polymorphisms (SNPs) of the apolipoprotein E (ApoE) gene and blood lipid sensitivity to high-intensity interval training (HIIT).Methods:Two hundred and thirty Han Chinese college students (104 males and 126 females) who were not majoring in sports were recruited to perform a 28-minute high-intensity interval workout three times per week for 12 weeks. Before and after the intervention, blood levels of triglycerides (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), and total cholesterol (TC) were measured. The subjects′ DNA was genotyped to obtain SNP loci, and a linear regression model was constructed to quantify any association between ApoE genotypes and phenotypes.Results:(1) A total of 21 SNP loci were identified associated with ApoE genes, one of which (rs7412) was found to be correlated with the training effect on blood lipids. (2) The initial TT and LDL-C values of carriers of the T allele of gene rs7412 (individuals with the CT + TT genotypes) were, on average, significantly lower than those of CC genotype individuals. However, no significant differences in the initial TG and HDL-C values among different genotypes were observed. (3) After the training the average LDL-C levels among the ApoE rs7412 polymorphic groups had changed significantly, with a significantly greater decrease observed among the carriers of the T allele compared with those of CC genotype.Conclusions:ApoE polymorphism may be significantly associated with TT and LDL-C values in Han Chinese youth, with carriers of the T allele tending to display lower levels than those of CC genotype. The polymorphism of ApoE gene rs7412 may be related to LDL-C reduction through HIIT, with carriers of the T allele more sensitive to such training.

Objective To investigate the differences in subchondral bone mineral density(BMD)between the femoral and tibial sides in patients of knee osteoarthritis(KOA)with normal lines of force and varus.Methods The data of 450 knee joints with a definite diagnosis of KOA were included in this study including weight-bearing full-length X-ray films and quantitative computed tomography(QCT)scans of both lower limbs.Among them,131 were in the normal force line group and 319 were in the knee varus group.The hip-knee-ankle(HKA)angle and BMD of the femoral medial condyle,femoral lateral condyle,tibial medial plateau and tibial lateral plateau were measured.BMD ratio of tibial medial plateau to tibial lateral plateau and the BMD ratio of femoral medial condyle to femoral lateral condyle were calculated.BMD in medial and lateral compartments of the femur and tibia were compared between the two groups,followed by subgroup analyses based on gender and age.Spearman correlation was used to analyze the correlation between the BMD ratio of tibial medial plateau to tibial lateral plateau,the BMD ratio of femoral medial condyle to femoral lateral condyle and the degree of varus in the knee varus group.Results The BMD of the medial femoral condyles and medial tibial platforms were higher in the knee varus group than those in the normal force line group.The BMD of femoral lateral condyle and lateral tibial platform was lower in the knee varus group than that in the normal force line group.The BMD ratio of the medial to lateral tibial plateaus was greater than one in both groups,and the ratio of the knee varus group was greater.The BMD ratio of femoral medial to lateral condyle in the knee varus group was significantly higher than that in the normal force line group.For women,these findings were more pronounced and were independent of age.Correlation analysis showed that the BMD ratio of medial tibial plateau to lateral tibial plateau was negatively correlated with HKA angle(rs=-0.436,P＜0.01),and the BMD ratio of the medial femoral condyle to lateral femoral condyle was also negatively correlated with HKA angle(rs=-0.394,P＜0.01).Conclusion The BMD of medial femoral and tibial compartment is increased and the BMD of lateral compartment is decreased in the genu varus group compared with the normal force line group.

Objective To investigate the clinical characteristics of type 2diabetes mellitus(T2DM)complicated with coronary ath-erosclerotic heart disease(CAD).Methods A total of 2364 patients with T2DM complicated with CAD(case group)and 2495 patients with T2DM(control group)were enrolled in the First Affiliated Hospital of Xinjiang Medical University from January 2020 to December 2022.General information[including age,gender,course of diabetes,body mass inedx(BMI)],serum glycosylated hemoglobin(HbA1c),lipid metabolism level,lipoprotein(a)[Lp(a)],uric acid,thyroid function,thyroid autoimmune antibody,bilirubin,cysta-tin C(CysC)and homocysteine(Hcy)levels of the patients were statistically analyzed.Results There age,systolic pressure,diastolic pressure,HbAlc,CysC,uric acid,total cholesterol(TC),low density lipoprotein-cholesterol(LDL-C),TSH,TgAb and TPOAb in case group were higher than those in control group,there were statistically significant differences between the two groups(P＜0.05).The difference in gender composition between the two groups was statistically significant(P＜0.01).There were no significant differences in diabetes course,BMI,Hey,TC and TG levels between the two groups(P＞0.05).The results of multivariate Logistic regression analysis showed that gender,age,course of diabetes,smoking history,drinking history,hypertension history,systolic blood pressure,bilirubin,lipid metabolism level,Lp(a),Hey,CysC,total thyroxine(TT4),free thyroxine(FT4),total triiodothyronine(TT3),free triiodothyro-nine(FT3),TgAb and TPOAb were independent correlation factors for T2DM complicated with CAD.Conclusion Multiple serological markers are independently correlated with T2DM complicated with CAD.For these patients,doctors should pay attention to other markers,such as CysC,bilirubin and thyroid function,while treating hyperglycemia and CAD.

Objective To investigate the expression of cyclophilin A(CyPA)and X-box binding protein 1(XBP1)of type 2 dia-betes mellitus in rats.Methods SD rat models of type 1 diabetes mellitus and type 2 diabetes mellitus were established,and rats with normal diet and high fat diet were fed at the same time.The expression of CyPA and XBP1 in peripheral blood of rats in the four groups was detected by enzyme-linked immunosorbent assay(ELISA),the morphological changes of coronary artery in the four groups were ob-served by hematoxylin-eosin staining(HE staining),and the expressions of CyPA and XBP1 in femoral artery of lower limbs of rats in the four groups were detected by immunohistochemistry.Results The expression level of CyPA in peripheral blood of rats with type 2 dia-betes mellitus was higher than that in normal diet group,high fat feeding group and type 1 diabetes mellitus group,and the difference was statistically significant(t were-7.626,3.677,5.040,P＜0.01).The expression level of XBP1 in peripheral blood of rats in type 2 diabetes mellitus group was lower than that in normal diet group and high fat feeding group,and the difference was statistically significant(t were 4.208,2.997;P were 0.001,0.013).The expression level of XBP1 in peripheral blood of rats in type 2 diabetes mellitus group was lower than that in type 1 diabetes mellitus group,and the difference was not statistically significant(t=1.843,P=0.084).HE stai-ning did not show significant fatty changes in the coronary arteries of the four groups.Immunohistochemistry showed that the expression level of CyPA was the highest in the arterial tissues of rats with type 2 diabetes mellitus group,while the expression level of XBP1 was the highest in the arterial tissues of rats with high fat feeding group and the lowest in the arterial tissues of rats with type 2 diabetes mellitus group.Conclusion High glucose and high fat was correlated with the expression levels of CyPA and XBP1 in in peripheral blood and ar-terial tissue of rats,and the combined effect of high glucose and high fat was stronger than that of high glucose or high fat alone.