1.Analysis of the incidence and mortality trends of type 2 diabetic nephropathy in China from 1990 to 2021
Xuewei DOU ; Wenfei CUI ; Ling NIU ; Binglei YIN ; Jinjin WANG
Acta Universitatis Medicinalis Anhui 2026;61(1):176-182
ObjectiveTo analyze the long-term trend of incidence and mortality of type 2 diabetic kidney disease (DKD) in China from 1990 to 2021. MethodsThe Joinpoint regression model was used to analyze the average annual percentage change (AAPC) of standardized incidence rate and standardized mortality rate, and the age-period-cohort (APC) model was constructed to analyze the longitudinal age change, period and cohort effect risk ratio (RR). ResultsFrom 1990 to 2021, the standardized incidence rate of type 2 DKD in males and females showed an overall upward trend, with AAPC of 0.08% and 0.36%, respectively. The age-standardized mortality rate of the total population and female showed a downward trend, with AAPC of -0.61% and -1.03%, respectively. However, there was no significant difference in males. APC model showed that the age effect existed: the peak age was 75-79 years old, the mortality rate of females increased, and the mortality rate of males decreased after 80-84 years old. For the effect of time period, the risk of type 2 DKD incidence in females in 2017—2021 was 1.05 times that in 2002—2006, and the risk of death in males and females in 2017—2021 was 0.84 and 0.71 times that in 2002—2006, respectively. For cohort effects, the highest risk of disease was seen in men and women born in 1967—1971, and the highest risk of death was seen in men born in 1952—1956 and women born in 1912—1916. ConclusionFrom 1990 to 2021, the standardized incidence rate of type 2 DKD in China shows an upward trend, and the standardized mortality rate shows a downward trend. It is necessary to strengthen the health behavior publicity and education of type 2 DKD, and actively carry out early screening to reduce the disease burden.
2.Mechanistic study of mitochondrial dysfunction in renal injury induced by maternal bone lead mobilization during pregnancy in rats
Ling LI ; Lin ZHANG ; Li LI ; Yuting WEI ; Man LYU ; Zeshi ZHANG ; Li MA ; Anxin LU ; Yin LIN ; Shaohua WANG ; Chonghuai YAN
Journal of Environmental and Occupational Medicine 2026;43(3):286-292
Background Lead is a typical persistent environmental pollutant that can accumulate in bones for decades. During pregnancy, alterations in calcium metabolism promote the mobilization of bone lead, resulting in secondary exposure; however, the mechanisms by which pregnancy-associated bone lead mobilization affects maternal renal function remain unclear. Objective To investigate the role of mitochondrial dysfunction in pregnancy-related bone lead mobilization-induced renal injury. Methods Newly weaned female Wistar rats were randomly assigned to a control or a lead-exposed group administered either 0.05% sodium acetate or 0.05% lead acetate in drinking water. Following a 4-week lead exposure and a 4-week washout period, the females were co-housed with healthy age-matched males for mating. Rats were sacrificed at early (gestational day 3) and late (gestational day 17) pregnancystages, respectively. Renal histopathology was assessed using hematoxylin and eosin staining staining. Mitochondria-related indicators, including oxidative stress, inflammatory responses, and energy metabolism, were measured. Differential metabolites were identified using serum metabolomics. Results Renal injury in the lead-exposed pregnant rats progressed in a time-dependent manner, characterized by degeneration of proximal tubular epithelial cells, glomerular hyaline changes, and interstitial inflammatory cell infiltration. Repeated measures ANOVA indicated a significant interaction between the treatment factor (lead exposure) and the temporal factor (gestational stage) on renal injury (P<0.001). Further analysis of mitochondrial function-related indicators in late-pregnancy renal tissue revealed that the lead exposure group exhibited significantly increased levels of malondialdehyde (MDA) and reactive oxygen species (ROS) (P<0.05), accompanied by a reduction in superoxide dismutase (SOD) and reduced glutathione (GSH) activities (P<0.05); regarding inflammatory markers, levels of interleukin-18 (IL-18) and interleukin-1β (IL-1β) were elevated (P<0.01), whereas interleukin-33 (IL-33) was decreased in the lead-exposed group (P<0.05); energy metabolism-related indicators, including adenosine triphosphate (ATP) level, Na+-K+-ATPase and Ca2+-Mg2+-ATPase activities, and mitochondrial respiratory chain complexes I, III, and V activities, were significantly reduced (P<0.05) in the lead-exposed gorup. The typical differential metabolite N-methylisoleucine, identified through serum metabolomics analysis, was negatively correlated with blood lead levels, kidney injury scores, and IL-1β, while positively correlated with catalase (CAT) activity and Ca2+-Mg2+-ATPase. Conclusions Mitochondrial dysfunction may play a critical role in renal injury induced by bone lead mobilization during late gestation.
3.Study on Kinetic and Static Tasks With Different Resistance Coefficients in Post-stroke Rehabilitation Training Based on Functional Near-infrared Spectroscopy
Ling-Di FU ; Jia-Xuan DOU ; Ting-Ting YING ; Li-Yong YIN ; Min TANG ; Zhen-Hu LIANG
Progress in Biochemistry and Biophysics 2025;52(7):1890-1903
ObjectiveFunctional near-infrared spectroscopy (fNIRS), a novel non-invasive technique for monitoring cerebral activity, can be integrated with upper limb rehabilitation robots to facilitate the real-time assessment of neurological rehabilitation outcomes. The rehabilitation robot is designed with 3 training modes: passive, active, and resistance. Among these, the resistance mode has been demonstrated to yield superior rehabilitative outcomes for patients with a certain level of muscle strength. The control modes in the resistance mode can be categorized into dynamic and static control. However, the effects of different control modes in the resistance mode on the motor function of patients with upper limb hemiplegia in stroke remain unclear. Furthermore, the effects of force, an important parameter of different control modes, on the activation of brain regions have rarely been reported. This study investigates the effects of dynamic and static resistance modes under varying resistance levels on cerebral functional alterations during motor rehabilitation in post-stroke patients. MethodsA cohort of 20 stroke patients with upper limb dysfunction was enrolled in the study, completing preparatory adaptive training followed by 3 intensity-level tasks across 2 motor paradigms. The bilateral prefrontal cortices (PFC), bilateral primary motor cortices (M1), bilateral primary somatosensory cortices (S1), and bilateral premotor and supplementary motor cortices (PM) were examined in both the resting and motor training states. The lateralization index (LI), phase locking value (PLV), network metrics were employed to examine cortical activation patterns and topological properties of brain connectivity. ResultsThe data indicated that both dynamic and static modes resulted in significantly greater activation of the contralateral M1 area and the ipsilateral PM area when compared to the resting state. The static patterns demonstrated a more pronounced activation in the contralateral M1 in comparison to the dynamic patterns. The results of brain network analysis revealed significant differences between the dynamic and resting states in the contralateral PFC area and contralateral M1 area (F=4.709, P=0.038), as well as in the contralateral PM area and ipsilateral M1 area (F=4.218, P=0.049). Moreover, the findings indicated a positive correlation between the activation of the M1 region and the increase in force in the dynamic mode, which was reversed in the static mode. ConclusionBoth dynamic and static resistance training modes have been demonstrated to activate the corresponding brain functional regions. Dynamic resistance modes elicit greater oxygen changes and connectivity to the region of interest (ROI) than static resistance modes. Furthermore, the effects of increasing force differ between the two modes. In patients who have suffered a stroke, dynamic modes may have a more pronounced effect on the activation of exercise-related functional brain regions.
4.Analysis of evaluation results for the implementation of Specification for testing of quality control in medical X-ray diagnostic equipment (WS 76-2020)
Ling ZHANG ; Weidong ZHU ; Hezheng ZHAI ; Tingting YE ; Tinggui HE ; Wanyan CHENG ; Cheng ZHANG ; Chunxu YIN
Chinese Journal of Radiological Health 2025;34(4):559-565
Objective To evaluate the overall implementation of the WS 76-2020 standard in Anhui Province, China and identify and analyze the factors affecting the implementation of the standard, and to provide a basis for the effective implementation and revision of WS 76-2020. Methods According to the requirements of the Notice of the Department of Regulations in National Health Commission on the 2024 assessment of implementation of mandatory standards, an evaluation of radiological health standards was organized and conducted in Anhui Province. The evaluation involved the three dimensions of standard implementation status, technical content of the standards, and effectiveness of standard implementation, with subsequent data analysis. Results The total evaluation score for WS 76-2020 was 87.83 points, indicating that the standard effectively guided the quality control testing of medical X-ray diagnostic equipment. However, stability testing was either underutilized or not performed in practice. The qualified rate of X-ray diagnostic equipment in the province was 94.26%, with equipment performance issues identified as the leading contributor to non-qualified instances. Expert discussions highlighted recommendations particularly concerning the operability, applicability, and scientific rigor of the standard. Conclusion It is recommended to strengthen the dissemination and training for the standard, promote medical institutions to voluntarily conduct stability testing, provide supplementary clarifications or revisions for problematic clauses, and standardize quality control testing techniques for radiological diagnostic equipment.
5.Gastrointestinal transit time of radiopaque ingested foreign bodies in children: experience of two paediatric tertiary centres.
Chen Xiang ANG ; Win Kai MUN ; Marion Margaret AW ; Diana LIN ; Shu-Ling CHONG ; Lin Yin ONG ; Shireen Anne NAH
Singapore medical journal 2025;66(1):24-27
INTRODUCTION:
Foreign body (FB) ingestion is a common paediatric emergency. While guidelines exist for urgent intervention, less is known of the natural progress of FBs passing through the gastrointestinal tract (GIT). We reviewed these FB transit times in an outpatient cohort.
METHODS:
A retrospective review was performed on all children (≤18 years) treated for radiopaque FB ingestion at two major tertiary paediatric centres from 2015 to 2016. Demographic data, FB types, outcomes and hospital visits (emergency department [ED] and outpatient) were recorded. All cases discharged from the ED with outpatient follow-up were included. We excluded those who were not given follow-up appointments and those admitted to inpatient wards. We categorised the outcomes into confirmed passage (ascertained via abdominal X-ray or reported direct stool visualisation by patients/caregivers) and assumed passage (if patients did not attend follow-up appointments).
RESULTS:
Of the 2,122 ED visits for FB ingestion, 350 patients who were given outpatient follow-up appointments were reviewed (median age 4.35 years [range: 0.5-14.7], 196 [56%] male). The largest proportion (16%) was aged 1-2 years. Coins were the most common ingested FB, followed by toys. High-risk FB (magnets or batteries) formed 9% of cases ( n =33). The 50 th centile for FB retention was 8, 4 and 7 days for coins, batteries and other radiopaque FBs, respectively; all confirmed passages occurred at 37, 7 and 23 days, respectively. Overall, 197 (68%) patients defaulted on their last given follow-up.
CONCLUSION
This study provides insight into the transit times of FB ingested by children, which helps medical professionals to decide on the optimal time for follow-up visits and provide appropriate counsel to caregivers.
Adolescent
;
Child
;
Child, Preschool
;
Female
;
Humans
;
Infant
;
Male
;
Eating
;
Emergency Service, Hospital
;
Foreign Bodies/diagnostic imaging*
;
Gastrointestinal Tract/diagnostic imaging*
;
Gastrointestinal Transit
;
Retrospective Studies
;
Singapore
;
Tertiary Care Centers
6.Optimizing the dosing regimen of aripiprazole microspheres by popu-lation pharmacokinetic modeling and simulation
Qingheng MENG ; Zhihui HAN ; Qi LEI ; Bin CHEN ; Xia YIN ; Haitang HU ; Hongxia LIU ; Qingshan ZHENG ; Ling XU ; Qin HUANG
Chinese Journal of Clinical Pharmacology and Therapeutics 2025;30(4):493-500
AIM:To optimize the clinical dosage and administration regimen of a novel long-acting injectable aripiprazole microsphere(LZMT05)using plasma concentration data from two clinical trials.METHODS:Plasma concentrations were collected from 196 schizophrenia patients administered LZMT05,and a population pharmacokinetic(Pop-PK)model was developed.The therapeutic window was defined as the steady-state trough-to-peak concentration range(94.0-534 ng/mL)of oral ar-ipiprazole.Multiple clinical scenarios were simulat-ed to identify the optimal regimen.RESULTS:A one-compartment model with dual first-order ab-sorption and first-order elimination characterized LZMT05 pharmacokinetics.Covariates like sex and CYP2D6 genotype were integrated into the final model.Simulations demonstrated that switching from 10 mg oral aripiprazole to 350 mg LZMT05 ev-ery 4 weeks sustained concentrations within the therapeutic window with minimal peak-to-trough fluctuations.CONCLUSION:The PopPK-guided opti-mized LZMT05 regimen maintained drug exposure within the therapeutic window,suggesting favor-able efficacy and safety.
7.The role and research progress of m6A modification in sepsis and its induced multi-organ dysfunction disease
Lu-lu ZHANG ; Rui GONG ; Jin-yi ZHAO ; Fei MU ; Yan-ping YIN ; Wang-ting LI ; Ling-ling ZHENG ; Yu-ping TANG ; Jing-wen WANG
Chinese Pharmacological Bulletin 2025;41(3):421-427
Sepsis is a life-threatening organ dysfunction disease caused by a dysregulated host response to infection.It has com-plex pathophysiological changes,and in severe cases,it can rap-idly develop into septic shock and multiple organ dysfunction or multiple organ failure.At present,the pathological mechanism of sepsis and its induced organ dysfunction is complex and the in-fluencing factors are numerous.So far,there is still a lack of specific and effective treatment strategies.RNA modify-N6-methyladenosine(m6 A)is one of the most common post-tran-scriptional modifications on eukaryotic RNAs.It is involved in the regulation of the occurrence and development of a variety of inflammatory diseases,including sepsis,and even multiple organ dysfunction induced by sepsis by affecting the metabolism of RNAs.It includes cardiac dysfunction,acute lung injury(ALI)and acute kidney injury(AKI).Therefore,this article will dis-cuss the effect of m6A modification on the function of immune cells,and its important role in sepsis and its induced multiple or-gan dysfunction diseases by regulating inflammatory signals,py-roptosis,mitochondrial damage and ferroptosis.This will provide new therapeutic targets and strategies for the clinical prevention and treatment of sepsis and its induced multiple organ dysfunc-tion diseases.
8.Effect of the axial position of posterior chamber phakic intraocular lens on the early postoperative vault changes
Yi-lin XU ; Qian JIAN ; Xun CHEN ; Yin-jie JIANG ; Ling-ling NIU ; Xiao-ying WANG
Fudan University Journal of Medical Sciences 2025;52(1):83-90
Objective To observe the early changes of vault after implantation of posterior chamber phakic intraocular lens implantable collamer lens(ICL),and investigate the effect of different implantation axes on the early vault changes.Methods A prospective,parallel cohort study was performed,enrolling a total of 124 eyes of who underwent ICL(V4c)implantation in the refractive clinic.The changes of vault were observed by scheimpflug tomography(Pentacam)and anterior segment optical coherence tomography(CASIA2)at 1 day,1 week and 1 month after surgery.Results The ICL vault declined significantly by approximately(108.2±82.4)μm 1 week after surgery with the proportion of 16.6%±12.1%compared with the values 1 day after surgery(P<0.001),and then remained stable.Within 1 month after surgery,excluding the difference in vault baseline at 1 day after surgery,the proportion of vault decline in the middle vault group(250-749 μm)and the high vault group(≥750 μm)was similar,and there was no statistically significant difference.We analyzed the relationship between ICL axial directions and vault and found that the vault decline of the horizontal ICL group stabilized quickly at 1 week after surgery,and the vault decline of the vertical ICL group was more significant within 1 month after surgery(P<0.05).Conclusion The vault of the ICL shows a downward trend in the early stage after implantation.The middle vault group and ICL in the horizontal position stabilizes faster,and the downward trend of the high vault group or ICL in the vertical position is more obvious.
9.A cross-lagged analysis of self-neglect and frailty among older adults
Qianping LI ; Yaping DING ; Tianyue SHI ; Ling ZHU ; Hongfei JIA ; Yueheng YIN ; Xianwen LI ; Yayi ZHAO
Chinese Journal of Modern Nursing 2025;31(29):4044-4049
Objective:To explore the longitudinal predictive relationship between self-neglect and frailty among older adults.Methods:Data were drawn from the Chinese Longitudinal Healthy Longevity Survey conducted in 2011 (T1), 2014 (T2), and 2018 (T3). A total of 1 495 older adults aged≥65 years at T1 who participated in three consecutive surveys and had no missing key variables were included. General demographic information, self-neglect scores, and frailty status were extracted. Spearman correlation analysis was used to examine the association between self-neglect and frailty. Cross-lagged analysis was employed to investigate the potential causal relationship between the two variables.Results:The self-neglect scores for 1 495 older adults at T1, T2, and T3 were (2.84±1.39), (2.47±1.30), and (2.41±1.20), respectively, showing a declining trend. The frailty scores at T1, T2, and T3 were 0 (0, 1.00), 0 (0, 2.00), and 1.00 (0, 2.00), respectively, indicating an increasing trend. Cross-lagged analysis revealed that self-neglect at T1 positively predicted frailty at T2 (β=0.076, P=0.004). Frailty at both T1 and T2 positively predicted self-neglect at T2 (β=0.057, P=0.044) and T3 (β=0.058, P=0.029), respectively. Conclusions:Frailty among older adults positively predicts self-neglect, and self-neglect also has a certain predictive effect on frailty. Medical staff should strengthen early screening and intervention for frailty in older adults to delay the occurrence and progression of self-neglect.
10.Analysis of the Vulvovaginal Microecological Flora Profile in 371 Young Girls
Journal of Practical Obstetrics and Gynecology 2025;41(9):749-753
Objective:To analyze the vulvovaginal microecological characteristics of young girls and the impact of age on these characteristics.Methods:A total of 371 young girls aged≤12 years who visited the department of Gynecological,Peking University First Hospital from January 2016 to December 2022 were selected.These girls were stratified into three age groups:<7 years,7-9 years,and>9-12 years.Then,the results of their vulvovagi-nal microecology were analyzed.Results:A total of 84 cases(22.6%)were clinically diagnosed with vulvovagini-tis,including 43 cases(43/84,51.2%)of bacterial vaginosis(BV),38 cases(38/84,45.2%)of vulvovaginal can-didiasis(VVC),2 cases(2/84,2.4%)of trichomoniasis vaginalis(TV),and 1 case(1/84,1.2%)of mixed vul-vovaginitis(BV+VVC).It was found that there was a statistically significant difference in VVC infection among different age groups of young girls(P<0.001),and the infection rate was higher in the>9-12 years group.Sig-nificant variations were also observed in BV infection among different age groups of young girls(P<0.001).The infection rate was the highest in the 7-9 years group and the lowest in the>9-12 years group.Among the 371 patients,165 cases(44.5%)had normal vaginal flora,176 cases(47.4%)had abnormal vaginal flora.Among them,64 cases(17.3%)had BV-type abnormal flora,and 112 cases(30.2%)had non-BV-type abnormal flora.There were 30 cases(8.1%)with flora suppression.The composition ratios of flora suppression,BV-type abnor-mal flora,non-BV-type abnormal flora,and total abnormal flora demonstrated statistically significant intergroup var-iations across age cohorts(P<0.001).Microecological analysis showed that there were statistically significant differences in the composition ratios of factors such as dominant bacteria(Gram-positive large bacilli)and pH a-mong different age groups(P<0.001).Conclusions:The composition of the vulvovaginal microecology varies a-mong young girls of different ages,and differences exist in reproductive tract infections across these age groups.Assisting in diagnosis through vulvovaginal microecology can better guide clinicians to provide targeted treatment for reproductive tract infections in young girls,and improve the clinical cure rates.

Result Analysis
Print
Save
E-mail