1.Advances in diffuse optical technology lenses for myopia control
Kun HE ; Bingxin PAN ; Suyun YANG ; Zhiyang HE ; Mengting ZHENG ; Meiling SHU ; Pengfei JIANG ; Shan XU ; Pengfei TIAN
International Eye Science 2025;25(9):1476-1483
Recent years have witnessed significant advancements in myopia control research through the application of diffuse optical technology(DOT)spectacle lenses. Myopia has emerged as a global public health challenge, affecting nearly half of the world's population, with childhood and adolescent myopia rates continuing to rise. DOT lenses represent an innovative myopia control intervention based on retinal contrast signal theory. These lenses incorporate micro-light scattering dots distributed across the lens surface to reduce retinal imaging contrast and modulate the influence of visual input on axial elongation, thereby slowing myopia progression. The core mechanism operates through refractive index differences between the lens substrate(1.53)and scattering dots(1.50), which generate optical scattering effects. This design maintains clear vision through a central 5 mm optical zone while effectively reducing contrast signal intensity in the peripheral retina. Large-scale randomized controlled trials, including the CYPRESS study, have demonstrated significant myopia control efficacy in children aged 6-10 years: 12-month follow-up data revealed a 74% reduction in myopia progression and a 50% reduction in axial elongation, with sustained safety and visual quality maintained over 4-year long-term follow-up. However, several aspects of DOT technology remain contentious and require further clinical validation, including its applicability across different age groups, optimal scattering dot density configurations, combined application effects with other myopia control methods, and long-term visual adaptation during extended use. This review systematically examines the theoretical foundations, design characteristics, clinical application progress, and future development directions of DOT technology, providing scientific evidence for clinical myopia prevention and control strategy formulation.
2.Clinical efficacy and safety of amlodipine besylate and benazepril hydrochloride tablets (II) in the treatment of primary hypertension
Min ZHANG ; Na ZHOU ; Xiufeng LIU ; Qunqun YU ; Guangping CHEN ; Meiling XIE ; Meihua LIU ; Xiang YANG ; Yali CHEN
Chinese Journal of Primary Medicine and Pharmacy 2024;31(5):691-695
Objective:To investigate the clinical efficacy and safety of amlodipine besylate and benazepril hydrochloride tablets (II) in the treatment of primary hypertension.Methods:A total of 280 patients with primary hypertension who were treated at Shougang Shuigang Hospital between June 2022 and June 2023 were selected as study subjects. A clinical case-control study was conducted, and the RAND function method was utilized to randomly allocate the subjects into four groups, each receiving a different treatment: amlodipine besylate group (Group A, n = 70), benazepril hydrochloride group (Group B, n = 70), compound formulation amlodipine besylate and benazepril hydrochloride tablets group (Group C, n = 71), and amlodipine besylate plus benazepril hydrochloride group (Group D, n = 69). Relevant therapeutic indicators (blood pressure compliance rate, changes in blood pressure values) and safety indicators (adverse reactions, medication adherence) were observed. Results:The blood pressure compliance rates of Group C and Group D were 91.5% (65/71) and 89.9% (62/69), respectively. There was no statistically significant difference between the two groups ( χ2 = 1.24, P = 0.143), but both were higher than the rates of 77.1% (54/70) and 74.3% (52/70) in Group A and Group B, respectively ( χ2 = 5.68, 4.86, P = 0.004, 0.012). Before treatment, there was no statistically significant difference in systolic and diastolic blood pressure among the four groups of patients (all P > 0.05). After treatment, there was a statistically significant decrease in both systolic and diastolic blood pressure among the four groups compared with their pre-treatment levels (all P < 0.05). Specifically, Group C and Group D exhibited significant reductions in blood pressure following treatment ( t = 4.35, 5.12, 7.25, 5.86, all P < 0.05). Meanwhile, there was no statistically significant difference in systolic blood pressure between Group C and Group D after treatment ( P > 0.05), while diastolic blood pressure was lower in Group C than Group D after treatment ( t = 6.01, P < 0.05). There was a significant downward trend observed in total cholesterol, triglycerides, and low-density lipoprotein cholesterol levels (all P < 0.05). Notably, Group B and Group D reported higher incidences of dry cough, with 15 and 10 cases, respectively, compared with Group A and Group C, which had 1 and 3 cases, respectively. These differences were statistically significant ( χ2 = 4.25, 5.04, both P < 0.05). Furthermore, the treatment compliance rates for Group A, Group B, and Group C were 72.9% (51/70), 71.4% (50/70), and 74.6% (53/71), respectively, all exceeding the 46.4% (32/69) compliance rate of Group D. These differences were also statistically significant ( χ2 = 4.68, 5.24, 4.98, all P < 0.05). Conclusion:The clinical efficacy and safety of the compound formulation amlodipine besylate and benazepril hydrochloride tablets (II) in the treatment of primary hypertension are superior to those of single tablets and combination therapy.
3.Construction of an evaluation index system for clinical practice bases of nursing graduate students majoring in midwifery from a practical perspective
Xuqian SHEN ; Yufang GAO ; Lei SONG ; Meiling YUAN ; Rui YANG ; Zitong JI ; Longlong WANG
Chinese Journal of Modern Nursing 2024;30(1):55-62
Objective:To establish a comprehensive and detailed evaluation index system for clinical practice bases of nursing graduate students majoring in midwifery, providing reference for promoting the construction of clinical practice bases for nursing graduate students majoring in midwifery in China.Methods:Based on the theoretical framework of international midwifery practice basic skills, an evaluation index system for clinical practice bases of nursing graduate students majoring in midwifery was established through literature analysis and Delphi method. Analytic hierarchy process was used to calculate the weights of indicators at all levels.Results:This study conducted two rounds of consultation with 20 experts. In the two rounds of consultation, the positivity coefficients of experts were 84.38% and 74.07%, and the authority coefficients of the expert groups were 0.91 and 0.94, respectively. The total Cronbach's α coefficients of the index system were 0.930 and 0.965, respectively, and the Kendall harmony coefficients of the overall indicators were 0.230 and 0.297 ( P<0.01). The final evaluation index system for clinical practice bases of nursing graduate students majoring in midwifery included five primary indicators, 14 secondary indicators, and 76 connotation indicators. Conclusions:Based on the service purpose of maternal and child health and the functional positioning of the base, this study constructs a scientific and reliable evaluation index system for clinical practice bases of nursing graduate students majoring in midwifery.
4.Self-sufficient nanoparticles with dual-enzyme activity trigger radical storms and activate cascade-amplified antitumor immunologic responses.
Liping BAI ; Jin YANG ; Siting YU ; Zhongzheng XIANG ; Yuanyuan ZENG ; Meiling SHEN ; Xiaorong KOU ; Qinjie WU ; Changyang GONG
Acta Pharmaceutica Sinica B 2024;14(2):821-835
Radiotherapy (RT) can potentially induce systemic immune responses by initiating immunogenic cell death (ICD) of tumor cells. However, RT-induced antitumor immunologic responses are sporadic and insufficient against cancer metastases. Herein, we construct multifunctional self-sufficient nanoparticles (MARS) with dual-enzyme activity (GOx and peroxidase-like) to trigger radical storms and activate the cascade-amplified systemic immune responses to suppress both local tumors and metastatic relapse. In addition to limiting the Warburg effect to actualize starvation therapy, MARS catalyzes glucose to produce hydrogen peroxide (H2O2), which is then used in the Cu+-mediated Fenton-like reaction and RT sensitization. RT and chemodynamic therapy produce reactive oxygen species in the form of radical storms, which have a robust ICD impact on mobilizing the immune system. Thus, when MARS is combined with RT, potent systemic antitumor immunity can be generated by activating antigen-presenting cells, promoting dendritic cells maturation, increasing the infiltration of cytotoxic T lymphocytes, and reprogramming the immunosuppressive tumor microenvironment. Furthermore, the synergistic therapy of RT and MARS effectively suppresses local tumor growth, increases mouse longevity, and results in a 90% reduction in lung metastasis and postoperative recurrence. Overall, we provide a viable approach to treating cancer by inducing radical storms and activating cascade-amplified systemic immunity.
5.Correlation analysis of serum lipids, HbA1C levels and insulin resistance in obese type 2 diabetes patients
Meiling LAO ; Aisheng WEI ; Wangmu GESANG ; Zhongliang HUANG ; Fen HE ; Wenhui WANG ; Shengmin DENG ; Dongshan YANG ; Cangjue AWANG
Journal of Public Health and Preventive Medicine 2024;35(1):136-140
Objective To investigate the changes of blood lipid and glycosylated hemoglobin (HbA1c) levels in obese type 2 diabetes (T2DM) patients and their relationship with insulin resistance (Homa-IR). Methods A total of 120 cases of T2DM newly diagnosed in Motuo County, Tibet from February to October 2022 were selected as the observation group. According to BMI, the patients were divided into diabetes normal weight group (46 cases), overweight group (43 cases) and obesity group (31 cases); 145 healthy subjects were selected as the control group. The levels of HbA1c, fasting blood glucose (FPG), fasting insulin (FINS), serum total cholesterol (TC), triglycerides (TG), high-density lipoprotein (HDL-C), and low-density lipoprotein (LDL-C) were detected in the study subjects, and Homa-IR and Homa-β indices were calculated. The height, weight, and abdominal circumference were measured. The differences in the levels of the above indicators between the observation group patients and the control group, as well as among various subgroups within the observation group were compared. The influencing factors of Homa-IR in obese T2DM patients were analyzed. Results Compared with the control group, a significant increase in BMI, abdominal circumference, blood pressure, HbA1c, FBG, FINS, TC, TG, LDL-C, UA, visceral fat area, and the levels of Home-IR and Home-β was found in the observation group (all P<0.05). There were significant differences in BMI, abdominal circumference, and the levels of FINS, Homa IR, Homa-β, and HbA1c in diabetes patients with different BMI (all P<0.05). Correlation analysis showed that TG levels in obese T2DM patients in the observation group were significantly correlated with HbA1c (r=0.396, P=0.027), Homa-IR (r=0.405, P=0.024), and Home-β (r=-0.401, P=0.025); LDL-C was significantly correlated with Homa-IR (r=0.411, P=0.022) and Homa-β (r=-0.412, P=0.021); HbA1c was significantly positively correlated with BMI (r=0.371, P=0.040). Conclusion Insulin resistance is closely related to TG, LDL-C, and BMI in obese T2DM patients from the Motuo ethnic minority of Tibet, suggesting that these factors may play a role in the occurrence of T2DM.
6.Reference values for inspiratory muscle related indexes of preschool children in Nanjing
Yanlu HE ; Zhiyong YANG ; Weiding CHEN ; Xia CHI ; Meiling TONG
Chinese Journal of Child Health Care 2024;32(5):507-510
【Objective】 To generate reference values for inspiratory muscle of preschool children in Nanjing, so as to provide a reference index for evaluating children′s lung function and exercise performance. 【Methods】 A total of 236 preschool children were selected from the main urban area of Nanjing by stratified cluster sampling.The inspiratory muscles were evaluated by breath link respiratory function evaluation system to obtain the maximum inspiratory pressure (MIP) and inspiratory peak flow rate.Pearson analysis was used to determine the correlation of MIP and inspiratory peak flow rate with gender, age, height and weight.Multiple linear stepwise regression analysis was used to obtain the formula of MIP and inspiratory peak flow rate. 【Results】 Differences in MIP and peak inspiratory flow rate were not significant between boys and girls (P>0.05), but were statistically significant among different age groups and showed an increasing trend with age (F=13.660, 33.581, P<0.001).MIP and peak inspiratory flow rate were positively correlated with children′s age, height and weight (P<0.001).The regression model, proved to be statistically significant(F=12.913、22.398, P<0.08), indicated that height was the best predictor of MIP and age was the best predictor of inspiratory peak flow rate. 【Conclusions】 This study is the first study on the predicted value of inspiratory muscle in preschool children in China.The predicted value formula can provide a reference for clinical inspiratory muscle evaluation.
7.Ocular surface changes in keratoconus after long-term wearing of rigid gas permeable contact lens
Nana ZHANG ; Meiling QIAN ; Liyuan YANG ; Jun YANG
International Eye Science 2024;24(7):1127-1131
AIM: To analyze changes in the ocular surface parameters of keratoconus after long-term wearing of rigid gas permeable contact lens(RGPCL).METHODS:Prospective case study. A total of 113 keratoconus patients(213 eyes)fitted with RGPCL in the optometry center of Gansu Provincial Hospital from January 2018 to January 2022 were included. They were divided into three groups according to the severity of keratoconus, including 42 cases(80 eyes)in mild keratoconus group, 54 cases(102 eyes)in moderate keratoconus group and 17 cases(31 eyes)in severe keratoconus group. Furthermore, the non-invasive tear break-up time(NIBUT), non-invasive tear meniscus height(NITMH), red eye index, lipid layer thickness, fluorescent corneal staining, meibomian gland secretory function, Schirmer I test and ocular surface disease index(OSDI)scores were observed by Keratograph analyzer before and after wearing RGPCL for 1 wk, 1, 3, 6, 12 mo, respectively.RESULTS: There were no statistical significance in the age, NIBUT, NITMH, lipid layer thickness, meibomian gland secretory function and Schirmer I test among the three groups(P>0.05), while there were statistical significance in the sphere, cylinder, spherical equivalent, best corrected visual acuity(BCVA), non-contact intraocular pressure(IOPNCT), anterior, posterior corneal surface Kmax, corneal surface thickness at the thinnest point, eye redness index, fluorescent corneal staining, and OSDI(P<0.05). In the mild keratoconus group, NIBUT had statistical differences at 3, 6 and 12 mo after wearing RGPCL(P<0.05), NITMH had statistical differences in 6 and 12 mo(P<0.05), the eye redness index, fluorescent corneal staining and OSDI scores had statistical differences in 1 wk and 1 mo(P<0.05), and lipid layer thickness and meibomian gland secretory function had statistical differences in 12 mo(P<0.05). In the moderate keratoconus group, there were statistical differences in NIBUT at 6 and 12 mo after wearing lenses(P<0.05); there were statistical differences in the NITMH, lipid layer thickness and meibomian secretory function at 12 mo after wearing lens(P<0.05); there were statistical differences in the eye redness index at 1 wk, 1 and 3 mo after wearing RGPCL(P<0.05); there were statistical differences in the fluorescent corneal staining at 1 wk after wearing RGPCL(P<0.05); there were statistical differences in the OSDI at 1 wk and 1 mo after wearing RGPCL(P<0.05). In the severe keratoconus group, there were statistical differences in the NIBUT, NITMH and eye redness index at 1 wk, 1, 3, 6 and 12 mo after wearing RGPCL(P<0.05); there were statistical differences in the lipid layer thickness at 6,12 mo after wearing RGPCL(P<0.05); there were statistical differences in the fluorescent corneal staining and OSDI scores at 1 wk, 6 and 12 mo after wearing RGPCL(P<0.05); there were statistical differences in the meibomian secretory function at 6 and 12 mo after wearing RGPCL(P<0.05); and there were statistical differences in the Schirmer I test at 12 mo after wearing RGPCL(P<0.05).CONCLUSION: Long-term wearing of RGPCL can affect the ocular surface microcirculation in keratoconus patients, thus making differences in patients subjective. However, it has no significant impact on the visual quality of patients. Therefore, long-term wearing of RGPCL is safely to control the progression of keratoconus.
8.Research on dynamic monitoring of drug consumption based on statistical process control
Yang CHEN ; Chonghui DAN ; Meiling XU ; Xiao CHEN ; Ying LIU ; Xiaoyuan ZHENG
China Pharmacy 2024;35(19):2328-2334
OBJECTIVE To investigate a method for dynamic monitoring of drug consumption (DMDC) based on statistical process control (SPC), aiming to improve the macro-supervisory capacity in the process of drug utilization. METHODS The lists of key monitoring drug varieties in our hospital were established based on drug cost and relevant national documents. Monthly consumption data of key monitoring drug varieties in the entire hospital, outpatient pharmacy and inpatient pharmacy were taken as monitoring objects,and the DMDC model was established using SPC’s X control chart, moving range control chart, and exponentially weighted moving-average control chart, monitoring from three dimensions: single-month consumption, range variation, and consumption trend. Rosuvastatin, metoprolol and meropenem were taken as examples to demonstrate the monitoring capabilities of the DMDC model. RESULTS Lists of key monitoring drug varieties were established for entire hospital, outpatient pharmacy and inpatient pharmacy, containing 203, 167 and 200 varieties, respectively. After excluding drug varieties that could not be modeled and for which modeling failed, 179, 116 and 172 DMDC models were successfully established for these three drug consumption areas, respectively. During the first four months of 2024, these three groups of model separately warned 54, 32 and 62 drug varieties. The DMDC model successfully monitored the monthly consumption of drugs,such as rosuvastatin throughout the hospital, metoprolol in outpatient pharmacy, and meropenem in inpatient pharmacy. Compared with the previously used floating rate ranking method in our hospital, the application of the DMDC model significantly improved the scope and depth of drug monitoring, with the monitored drug varieties greatly expanded from about 50 to 179, and the monitoring dimensions increased from a single dimension to three. CONCLUSIONS The DMDC model based on SPC is effective and feasible,suitable for monitoring drug varieties with stable monthly consumption.
9.Effect of blended mindfulness intervention on stigma and self-esteem in stable schizophrenia patients
Dandan LIU ; Jiali DAI ; Haina WANG ; Meiling WEN ; Yang ZHANG ; Hongsheng BI
Sichuan Mental Health 2024;37(5):414-419
Background Schizophrenia patients often face high level of stigma and low level of self-esteem,significantly hindering their recovery.Mindfulness-based intervention has proven be effective in reducing stigma and improving self-esteem.However,traditional mindfulness intervention typically involve high costs and require long-term professional involvement.Objective To explore the effects of blended mindfulness interventions on stigma and self-esteem in patients with stable schizophrenia,so as to provide references for reducing stigma,enhancing self-esteem and promoting recovery.Methods Patients receiving outpatient treatment at the Third Hospital of Daqing from June 2022 to January 2023,who met the diagnostic criteria for schizophrenia in the International Classification of Diseases,tenth edition(ICD-10)and were in a stable phase,were recruited for the study(n=84).According to the random number table method,participants were randomly assigned to study group and control group,with 42 cases in each group.Both groups received treatment with the second-generation antipsychotic medications,while the study group additionally received blended mindfulness intervention for 8 weeks,with sessions lasting 45~60 minutes,three times a week.Both groups were evaluated with Five Facet Mindfulness Questionnaire(FFMQ),Internalized Stigma of Mental Illness Inventory(ISMI)and Rosenberg Self-Esteem Scale(RSES)at baseline and after 8-week intervention.Covariance analysis was used to compare the FFMQ,ISMI and SES scores between two groups after 8-week intervention.Results After 8-week intervention,there were statistically significant differences between two groups in total FFMQ scores,as well as in the observation,acting with awareness,non-judgment and non-reactivity subscale scores(F=50.680,12.952,13.567,22.799,14.043,P<0.01).Statistically significant differences were observed in total ISMI scores,and in the alienation,stereotype endorsement,discrimination experience,stigma resistance and social withdrawal subscale scores(F=513.125,148.990,125.055,75.996,154.850,54.125,P<0.01).The difference in RSES scores between two groups was also statistically significant(F=19.478,P<0.01).Conclusion Blended mindfulness intervention may help improve the mindfulness and self-esteem in stable schizophrenia patients while reducing stigma.
10.Establishment of rapid influenza virus detection technology based on an integrated system
Xiaoshan ZHANG ; Jing MA ; Yanzhe HAO ; Jing YANG ; Meiling HOU ; Hongxia LI ; Jingduan LIU ; Haodi MENG ; Yuxi CAO ; Xiaoguang ZHANG
Chinese Journal of Experimental and Clinical Virology 2024;38(3):319-325
Objective:This study aimed to develop a rapid and accurate integrated nucleic acid detection method tailored for the influenza virus.Methods:We designed primers and probes targeting the predominant influenza virus strains circulating in China in recent years. These were integrated with extraction and amplification reagents and a point of care testing (POCT) system to facilitate a seamless and expedited process involving nucleic acid extraction, reaction system preparation, amplification, and result interpretation for the influenza virus. The specificity of the POCT system was evaluated using cultured influenza viruses, while its cross-reactivity was assessed against common respiratory pathogens, including adenovirus and respiratory syncytial virus.Results:Our study successfully developed duplex amplification primers and probes for both influenza A and B viruses, achieving a detection threshold as low as 500 copies/ml. Specificity tests confirmed that the detection reagents did not show cross-reactivity with other respiratory pathogens such as adenovirus and respiratory syncytial virus. The POCT-based rapid nucleic acid detection method for influenza virus was established, it is capable of completing the entire process from nucleic acid extraction to amplification and result interpretation within 50 minutes, while enabling real-time data upload.Conclusions:The POCT-based rapid influenza virus detection kit developed in this study offers a " sample in, results out" convenience, making it suitable for rapid influenza virus detection in primary care settings. This innovation has significant potential for clinical application.


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