Background The widespread use of herbicides has led to environmental contamination and has implications for human health. The liver is an important organ for the detoxification of environmental pollutants; however, studies on the association between herbicide exposure and liver function are limited. Objectives To investigate the association between baseline serum herbicide levels and changes in liver enzyme levels and liver enzyme abnormalities over a 5-year period in middle-aged and older adults. Methods This study was based on a nested case-control population of type 2 diabetes established in the Dongfeng-Tongji cohort, with a total of 1388 subjects included in this study and followed up for 5 years. Epidemiological data were collected through questionnaires, and baseline serum concentrations of three herbicides (metolachlor, propham, and acetochlor) were measured by gas chromatography-triple quadrupole mass spectrometry. Serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels were detected at baseline and follow-up visits. The associations between baseline serum herbicide levels and changes in AST and ALT over 5 years were assessed using linear regression models with herbicide levels categorized into quartiles, adjusting for age, sex, education level, smoking status, drinking status, physical activity, body mass index, and new-onset type 2 diabetes occurred during follow-up. The relationship between baseline serum herbicide levels and the risk of liver enzyme abnormalities during follow-up was further analyzed using logistic regression models. Results The positive rates of metolachlor, propham, and acetochlor were all higher than 80%, and their spiked rates of recovery ranged from 73.46% to 106.77%. The mean ± standard deviation of the age of subjects at baseline was (62.7±7.6) years, with 34.1% being male. The median serum levels of metolachlor, propham, and acetochlor at baseline were 0.05, 0.16, and 0.03 ng·mL⁻¹, respectively. There was no significant difference in baseline serum herbicide levels between the normal and abnormal liver enzyme groups at follow-up (P >0.05). The baseline liver enzyme levels and the changes in AST and ALT over 5 years in those who developed abnormal liver enzymes were significantly higher than those in the normal liver enzyme group (P <0.05). The linear regression analysis showed that the changes in AST increased progressively over 5 years in the second, third, and fourth quartiles of propham compared to the lowest quartile group (the second quartile: b=1.49, 95%CI: 0.10, 2.87; the third quartile: b=1.52, 95%CI: 0.14, 2.90; the fourth quartile: b=1.69, 95%CI: 0.31, 3.08; P <0.05). The associations of serum metolachlor and acetochlor with changes in AST were not significant. Additionally, no significant relationships were found between the three serum herbicides and the changes in ALT over 5 years or the risk of liver enzyme abnormalities. Conclusion Serum propham levels in middle-aged and older adults are positively associated with changes in liver enzyme AST, which may have an effect on liver function. More studies are needed to provide scientific evidence for the association between herbicide exposure and liver function.

AIM: To compare the clinical outcomes of extended depth-of-focus intraocular lenses(EDOF IOLs)using either micromonovision implantation or mixed implantation of EDOF and diffractive bifocal IOLs.METHODS: This retrospective clinical trial included 130 patients(260 eyes), who were divided into two groups. Group RR comprised 70 patients(140 eyes)bilaterally implanted with ZXR00 IOLs(Tecnis ZXR00, where one target was -0.5 D to -0.75 D and the other was 0 to -0.25 D). Group RM comprised 60 patients(120 eyes)unilaterally implanted with both ZXR00 and ZMB00 IOLs(Tecnis ZMB00, 0 to -0.25 D). Postoperative outcomes were compared after 3 mo, including visual acuity, defocus curves, stereoacuity, modulation transfer functions(MTFs), higher-order aberrations, and Visual Function-14(VF-14)questionnaire responses.RESULTS: Group RR had superior bilateral intermediate vision, while the group RM had superior bilateral near vision(both P<0.05). Group RM also exhibited superior MTFs and reduced higher-order aberrations(both P<0.05). Stereoacuity and VF-14 questionnaire results showed no statistically significant difference between groups(P>0.05).CONCLUSION: The implantation of micromonovision has significantly improved near vision. IOLs and their collocation can be customized according to individual patient needs to achieve precise treatment and provide cataract patients with high-quality vision.

AIM: To compare the clinical outcomes of extended depth-of-focus intraocular lenses(EDOF IOLs)using either micromonovision implantation or mixed implantation of EDOF and diffractive bifocal IOLs.METHODS: This retrospective clinical trial included 130 patients(260 eyes), who were divided into two groups. Group RR comprised 70 patients(140 eyes)bilaterally implanted with ZXR00 IOLs(Tecnis ZXR00, where one target was -0.5 D to -0.75 D and the other was 0 to -0.25 D). Group RM comprised 60 patients(120 eyes)unilaterally implanted with both ZXR00 and ZMB00 IOLs(Tecnis ZMB00, 0 to -0.25 D). Postoperative outcomes were compared after 3 mo, including visual acuity, defocus curves, stereoacuity, modulation transfer functions(MTFs), higher-order aberrations, and Visual Function-14(VF-14)questionnaire responses.RESULTS: Group RR had superior bilateral intermediate vision, while the group RM had superior bilateral near vision(both P<0.05). Group RM also exhibited superior MTFs and reduced higher-order aberrations(both P<0.05). Stereoacuity and VF-14 questionnaire results showed no statistically significant difference between groups(P>0.05).CONCLUSION: The implantation of micromonovision has significantly improved near vision. IOLs and their collocation can be customized according to individual patient needs to achieve precise treatment and provide cataract patients with high-quality vision.

Polygonum multiflorum （PM）， a commonly used Chinese herbal medicine in clinical practice， has been associated with frequent reports of liver injury in recent years， and the medication safety of PM has attracted more and more attention in China and globally. This article reviews the recent research advances in the signaling pathways and mechanisms of PM in causing drug-induced liver injury （DILI） and aims to provide new ideas for the proper and rational use of PM in clinical practice. The results show that PM is involved in the regulation of various signaling pathways， and it leads to the death of hepatocytes by destroying mitochondrial function， exacerbating bile acid accumulation， and inducing immune response， oxidative stress， and endoplasmic reticulum stress， thereby inducing the development and progression of DILI through multiple targets， pathways， and levels.

Objective To construct a universal influenza mRNA vaccine and evaluate its immunogenicity.Methods The antigen sequence of hemagglutinin(HA),nucleoprotein(NP)and matrix protein 2 ectodomain(M2e)in influenza A/California/04/2009 was optimized.HA,NP and 3 tandem M2e(3M2e)were cloned into pcDNA3.1 vector,respectively.Then the mRNAs were synthesized by linearization,in vitro transcription,enzymatic capping and enzymatic tailing,and named as mRNA-HA,mRNA-NP and mRNA-3M2e,respectively.The protein expression of the 3 kinds of mRNAs in 293T cells was detected by immunofluorescence assay.Comb-mRNA vaccine was prepared by enveloped mRNA-HA,mRNA-NP and mRNA-3M2e with lipid nanoparticles,respectively,and the particle size and potential were identified.Twenty-eight 6-week-old female BALB/c mice(18～22 g)were randomly divided into LNP group(n=14)and Comb-mRNA group(n=14).Hemagglutination inhibition(HI)method and microneutralization(MN)test were used to evaluate the serum antibody titer induced by Comb-mRNA vaccines.The mice were infected by 5LD50 wild-type H1 N1 influenza virus to evaluate the protective efficacy.Results The mRNA-HA,mRNA-NP and mRNA-3M2e were successfully constructed,and the 3 mRNAs could be expressed in 293T cells.The average size of mRNA encapsulated by lipid nanoparticles was 119.53±6.5 nm,and the average potential was-8.23±1.3 mV.The geometric mean titer(GMT)of HI and MN in the Comb-mRNA group were 179.6 and 201.6,compared with the LNP group.The ratio of IFN-γ+CD4+/CD8+Tcells was increased.The Comb-mRNA group could provide protection against 5LD50 wild type influenza H1 N1 virus after 2 weeks of booster immunization.Conclusion Comb-mRNA,an influenza vaccine candidate,can induce immune responses and protect mice from influenza virus challenge.

With the continuous development of surgery,the amount of Da Vinci robot surgery has increased year by year,and Da Vinci robot has been widely used in the field of surgery.However,due to its structural characteristics,robot surgical instruments are difficult to clean after contamination,which poses a great challenge to the cleaning technology of nurses in central sterile supply department(CSSD).At present,there are still some problems in the cleaning quality management of Da Vinci robotic surgical instruments,such as inadequate pre-treatment,non-standard manual cleaning process,and inconsistent cleaning quality evaluation methods,which bring great hidden dangers to patients'medical safety.Therefore,scientific and effective cleaning quality control is very important to prevent nosocomial infection and ensure the life safety of patients.This paper reviews the cleaning process and quality control on Da Vinci robotic surgical instruments by consulting,screening,sorting and summarizing domestic and foreign relevant literature of the cleaning and management,and combining with the actual clinical work of the disinfection supply center,and aims to provide theoretical references for the formulation of guidelines and clinical practice for the personnel of CSSD.

AIM: To investigate the effect of different lens combinations on visual acuity, visual quality and patient satisfaction by comparing mixed implantation of Tecnis Symfony ZXR00(ZXR00)and Tecnis ZMB00(ZMB00)lenses, bilateral implantation of ZMB00 lenses, and bilateral implantation of ZXR00 lenses.METHODS:This retrospective case-control study included 117 patients with cataracts(234 eyes)who underwent phacoemulsification combined with intraocular lens(IOLs)implantation from August 2020 to December 2021. The 3 groups included 36 patients(72 eyes)who underwent bilateral implantation of ZXR00(RR group), 37 patients(74 eyes)who underwent bilateral implantation of ZMB00(MM group), and 44 patients(88 eyes)who underwent implantation with a combination of ZXR00 and ZMB00(MR group). The uncorrected distance visual acuity(UDVA, 5 m), uncorrected intermediate visual acuity(UIVA, 80 cm), uncorrected near visual acuity(UNVA, 40 cm), corrected distance visual acuity(CDVA), defocus curve, stereopsis and VF-14 and QoV visual quality scale of the patients in the three groups were assessed at 3-month follow-up.RESULTS:Bilateral UNVA in the MM and MR group were significantly better than that in the RR group(P<0.05). Bilateral UIVA was the best in the RR group. There were no significant differences in bilateral UDVA, CDVA and stereopsis among the groups(P>0.05). Values for near-stereoscopic acuity at 40 cm were 107.27±80.53, 105.67±83.79, and 108.69±97.66(20-400)arcsec in the MR, MM, and RR groups, respectively(P>0.05). Satisfaction rates exceeded 90% in all groups.CONCLUSION:All groups achieved good distance, intermediate, and near visual acuity and near-stereoscopic vision postoperatively. Mixed implantation with ZXR00 and ZMB00 lenses achieved excellent full-range vision and resulted in high satisfaction. These results may aid in developing individualized clinical treatment plans.

Objective:To observe any effect of combining ultrasound-guided stellate ganglion pulsed radiofrequency irradiation with electroacupuncture in treating migraine.Methods:Seventy-two migraine patients were randomly divided into a combined group, an electroacupuncture group and a control group, each of 24. All three groups were treated with etocoxib and zolmitriptan dispersible tablets, while the electroacupuncture group and the combined group were additionally provided with electroacupuncture or ultrasound-guided stellate ganglion pulsed radiofrequency irradiation combined with electroacupuncture. The therapeutic interventions were administered once daily for 7 days. A visual analogue scale (VAS), a migraine-specific quality of life questionnaire (MSQOL), the Hamilton anxiety scale (HAMA), the Hamilton depression scale (HAMD) and a migraine disability scale (MIDAS) were used to evaluate each patient before the experiment and on the 3rd, 7th, 30th and 90th days after completion of the treatment.Results:The average VAS, MSQOL, HAMA and HAMD scores of the combined and acupuncture groups had improved significantly at all time points. Moreover, the average MIDAS scores of the combined and acupuncture groups had improved significantly 30 and 90 days after the treatment. On the 3rd day after the treatment, the average VAS, MSQoL, HAMA and HAMD scores of the combined group were significantly higher than the acupuncture group′s averages, while the average MIDAS score of the former group was significantly lower on the 30th and 90th days after the treatment. The average VAS, HAMA and HAMD scores of the combined group were significantly lower than the control group′s averages 3, 7, 30 and 90 days after the treatment, while their average MSQOL score was significantly higher. The average MIDAS score of the combined group was significantly lower than the control group′s average 30 and 90 days after the treatment.Conclusion:Ultrasound-guided stellate ganglion pulsed radiofrequency irradiation combined with electroacupuncture can significantly relieve the symptoms of migraine and improve the life quality of migraine patients for at least 3 months.

The pathogenesis of nonalcoholic fatty liver disease (NAFLD) remains unclear, and currently no effective drugs have been approved for the treatment of NAFLD. Polygonum cuspidatum is a natural traditional Chinese medicine with a long history of application, and studies have shown that it plays an important role in the treatment of NAFLD. This article summarizes related research findings in the active components of Polygonum cuspidatum applied in the treatment of NAFLD, and it is found that the active components of Polygonum cuspidatum can improve insulin resistance, exert an anti-oxidative stress effect, regulate lipid metabolism, improve endoplasmic reticulum stress, and alleviate inflammatory infiltration by regulating the signaling pathways including Nrf2, AMPK, NF-κB, SIRT1, and PPARα, thereby exerting a preventive and therapeutic effect on NAFLD, so as to provide a basis and ideas for developing drugs for NAFLD and exploring related mechanisms.

Objective: To investigate the prevalence and factors influencing depressive symptoms among children with dyslexia in China. Methods: A total of 6 298 children in grades 3-5 were recruited from eight primary schools in Baoan, Shenzhen. The Questionnaire for Children s Reading Ability, the Dyslexia Checklist for Chinese Children, the Pupil Rating Scale Revised Screening for Learning Disabilities, and the Children s Depression Inventory short version were used. Results: The prevalence of dyslexia was 2.76%( n =174). The rate of depressive symptoms in children with dyslexia (37.36%) was higher than children without dyslexia (18.17%)( χ 2=40.94, P ＜0.01). Compared with children without dyslexia, children with dyslexia had an increased risk of depressive symptoms ( OR=2.65, 95%CI=1.87-3.75, P ＜0.01). In addition, the average time that a mother spent with her child every day was one of the factors influencing depressive symptoms. The risk of depressive symptoms was lower in children who spent ≥3 h with their mothers than children who spent <1 h(3-4 h: OR=0.54, 95%CI=0.36-0.81； 5-6 h: OR=0.51, 95%CI=0.34-0.78 ; ≥7 h: OR=0.47, 95%CI=0.32-0.69, P ＜0.01). Conclusion The rate of depressive symptoms in children with dyslexia was shown to be high. Increasing the time that mothers spend with their children every day is helpful in preventing the occurrence of depression in children.