1.Effect of bone metabolic markers on sarcopenia in elderly patients with type 2 diabetes mellitus
Yamei WANG ; Bin ZHONG ; Xiaoqian CHEN ; Haiyan SHANGGUAN ; Jie LI
Journal of Public Health and Preventive Medicine 2026;37(1):126-129
Objective To investigate the effect of bone metabolic markers on sarcopenia in elderly patients with type 2 diabetes mellitus (T2DM). Methods A total of 412 patients with T2DM in the department of endocrinology of Nanjing Central Hospital from May 2020 to June 2025 were selected as the research subjects. According to Asian Working Group for Sarcopenia (AWGS) in 2019, these patients were evaluated for skeletal muscle mass index (ASMI), muscle strength, and muscle function, and were divided into a sarcopenia group (84 cases) and a non-sarcopenia group (328 cases). The glucolipid metabolic indexes were detected in both groups of patients, and the bone metabolic markers were evaluated, including procollagen type 1 N-terminal peptide (P1NP), beta-C-terminal telopeptide of type 1 collagen (β-CTX), and 25-hydroxy vitamin D [25-(OH)D]. The factors influencing the occurrence of sarcopenia in T2DM patients were analyzed by logistic regression analysis, and the diagnostic values of bone metabolic markers on sarcopenia in patients with T2DM were assessed by ROC curve. Results The levels of P1NP and 25-(OH)D were lower, while β-CTX level was higher in the sarcopenia group compared to the non-sarcopenia group, with statistical differences (P<0.05). After logistic correlation analysis, it was found that P1NP, β-CTX and 25-(OH)D were all influencing factors for the occurrence of sarcopenia in T2DM patients. ROC curve analysis suggested that combined detection of PINP, β-CTX, and 25-(OH)D had higher diagnostic value, with an area under the curve up to 0.805. Conclusion The abnormal expression of bone metabolic markers is associated with the increased risk of sarcopenia in patients with T2DM. The detection of serum bone metabolic markers expression level is of certain significance for the assessment of diabetes-related sarcopenia.
2.Efficacy of alpha-lipoic acid in patients with ischemic heart failure: a randomized, double-blind, placebo-controlled study
Hanchuan CHEN ; Qin YU ; Yamei XU ; Chen LIU ; Jing SUN ; Jingjing ZHAO ; Wenjia LI ; Kai HU ; Junbo GE ; Aijun SUN
Chinese Journal of Clinical Medicine 2025;32(4):717-719
Objective To explore the safety and effects of alpha-lipoic acid (ALA) in patients with ischemic heart failure (IHF). Methods A randomized, double-blind, placebo-controlled trial was designed (ClinicalTrial.gov registration number NCT03491969). From January 2019 to January 2023, 300 patients with IHF were enrolled in four medical centers in China, and were randomly assigned at a 1∶1 ratio to receive ALA (600 mg daily) or placebo on top of standard care for 24 months. The primary outcome was the composite outcome of hospitalization for heart failure (HF) or all-cause mortality events. The second outcome included non-fatal myocardial infarction (MI), non-fatal stroke, changes of left ventricular ejection fraction (LVEF) and 6-minute walking distance (6MWD) from baseline to 24 months after randomization. Results Finally, 138 patients of the ALA group and 139 patients of the placebo group attained the primary outcome. Hospitalization for HF or all-cause mortality events occurred in 32 patients (23.2%) of the ALA group and in 40 patients (28.8%) of the placebo group (HR=0.753, 95%CI 0.473-1.198, P=0.231; Figure 1A-1C). The absolute risk reduction (ARR) was 5.6%, the relative risk reduction (RRR) associated with ALA therapy was approximately 19.4% compared to placebo, corresponding to a number needed to treat (NNT) of 18 patients to prevent one event. In the secondary outcome analysis, the composite outcome of the major adverse cardiovascular events (MACE) including the hospitalization for HF, all-cause mortality events, non-fatal MI or non-fatal stroke occurred in 35 patients (25.4%) in the ALA group and 47 patients (33.8%) in the placebo group (HR=0.685, 95%CI 0.442-1.062, P=0.091; Figure 1D). Moreover, greater improvement in LVEF (β=3.20, 95%CI 1.14-5.23, P=0.002) and 6MWD (β=31.7, 95%CI 8.3-54.7, P=0.008) from baseline to 24 months after randomization were observed in the ALA group as compared to the placebo group. There were no differences in adverse events between the study groups. Conclusions These results show potential long-term beneficial effects of adding ALA to IHF patients. ALA could significantly improve LVEF and 6MWD compared to the placebo group in IHF patients.
3.Spatiotemporally delivery of Cas9 ribonucleoprotein/DNAzyme logic systems using near-infrared upconversion nanomachine for precise immunotherapy.
Chao CHEN ; Shiyu DU ; Qianglan LU ; Xueting SHEN ; Shuai DING ; Lihua QU ; Yamei GAO ; Zhiqiang YIN ; Zhe LI ; Yujun SONG ; Xin HAN
Acta Pharmaceutica Sinica B 2025;15(10):5431-5443
Gene therapy, harnessing the power of CRISPR-Cas9 and/or DNAzyme systems, stands as a pivotal approach in cancer therapy, enabling the meticulous manipulation of genes pivotal to tumorigenesis and immunity. However, the pursuit of precise gene therapy encounters formidable hurdles. Herein, a near-infrared upconversion theranostic nanomachine is devised and tailors for CRISPR-Cas9/DNAzyme systems mediate precise gene therapy. An ingenious logic DNAzyme system consists of Chain 1 (C1)/Chain 2 (C2) and endogenous lncRNA is designed. We employ manganese modified upconversion nanoparticles for carrying ultraviolet-responsive C1-PC linker-C2 (C2P) chain and Cas9 ribonucleoprotein (RNP), with outermost coats with hyaluronic acid. Upon reaching tumor microenvironment (TME), the released Mn2+ ions orchestrate a trifecta: facilitating endosomal escape, activating cGAS-STING signaling, and enabling T1-magnetic resonance imaging. Under near-infrared irradiation, Cas9 RNP/C2P complex dissociates, releasing Cas9 RNP into the nucleus to perform gene editing of Ptpn2, while C1/C2 chains self-assemble with endogenous lncRNA to form a functional DNAzyme system, targeting PD-L1 mRNA for gene silencing. This strategy remodels the TME by activating cGAS-STING signaling and dual immune checkpoints blockade, thus realizing tumor elimination. Our theranostic nanomachine armed with the CRISPR-Cas9/DNAzyme logic systems, represents a resourceful and promising strategy for advancing cancer systemic immunotherapy and precise gene therapy.
4.Research progress in lipidomics in alcohol use disorder
Wenju LI ; Min CHEN ; Yamei ZHANG ; Xiang CHU ; Jun FEI ; Qiaoling SONG
Chongqing Medicine 2025;54(7):1709-1712,1718
Alcohol use disorder(AUD)is a common mental disorder and physiological disease impac-ting millions globally.Although multiple studies have explored the causes and treatments of AUD,its exact mechanisms remain poorly understood.The development of lipidomics technology provides a new perspective for studying AUD and can be used to investigate its biological mechanisms.This review summarizes recent ap-plications and progress of lipidomics in AUD research,as well as its potential value in prevention and treat-ment strategies.
5.Experience of dietary restriction in patients with inflammatory bowel disease:a qualitative study
Yuqian ZHU ; Yanan GAO ; Junwan JIA ; Bing DU ; Lexia LEI ; Yamei CHEN
Chinese Journal of Nursing 2024;59(1):50-56
Objective To analyze the real experiences of patients with inflammatory bowel disease(IBD)during dietary restrictions,providing references for healthcare personnel to guide patients in standardizing dietary restriction behaviors.Methods Purposeful sampling was employed to select 14 patients with IBD who were treated at a tertiary A hospital in Shanghai between October 2022 and February 2023 for semi-structured in-depth interviews.Data were analyzed using the Colaizzi's 7-step method in phenomenological research.Results 4 themes and 13 sub-themes were extracted.Theme 1:facing multiple physiological challenges(hunger,nutritional imbalance,fatigue and muscle atrophy).Theme 2:experiencing negative psychological disturbances(craving and struggle for gourmet food,diminished zest for life and increased anxiety,feeling embarrassed during social activities).Theme 3:adopting various coping strategies(self-adjustment and adaptation to dietary restrictions,satisfying oral desires through various avenues,seeking knowledge and guidance on nutrition).Theme 4:gaining more growth and support(improved symptom and quality of life,enhanced awareness of dietary health,improved ability to manage diet,receiving support from peers and family).Conclusion The experience of dietary restrictions in IBD patients is complex and varied.Nursing staff should prioritize nutritional risk screening for IBD patients,pay attention to their mental health,provide patients with scientific and personalized dietary guidance,and strengthen social and family support to assist patients in better self-management of their diet.
6.Construction of key nursing technology system for hospital treatment of patients with nuclear radiation exposure
Xianjing HU ; Yan YAN ; Jing WANG ; Heli ZHANG ; Yamei CHEN ; Li MA ; Rongmei GENG ; Baohua LI
Chinese Journal of Nursing 2024;59(1):57-63
Objective To construct a key nursing technology system for the treatment of patients exposed to nuclear radiation in hospitals,and provide technical guidance and support for emergency nursing rescue in hospitals of nuclear radiation accidents.Methods A research group was composed of a team with rich experience in nuclear radiation accidents.Based on 4 scenarios of nuclear radiation accidents(including external irradiation,internal irradiation,external contamination,internal contamination),the literature search was conducted to form the first draft of the system.Delphi method was used to complete 2 rounds of expert letter consultation,and the final draft of the key nursing technology system for hospital treatment of patients with nuclear radiation exposure was constructed according to the revised opinions of experts.Results A total of 16 experts completed 2 rounds of correspondence.The effective recovery rates were 100%and 80%;the recommendation rates were 65%and 50%;the authority coefficients(Cr)were 0.778 and 0.797;the coefficient of variation(CV)of the 2 rounds of expert letter consultation was ≤0.25.Finally,a key nursing technology system for in-hospital treatment of patients with nuclear radiation exposure was formed,including 5 first-level indicators,26 second-level indicators and 74 third-level indicators.Conclusion The constructed key nursing technology system for hospital treatment of patients with nuclear radiation exposure is highly practical and scientific,and it is conducive to the formation of standardized nuclear radiation exposure treatment procedures,and provides a theoretical basis for the training and evaluation of nursing staff related to nuclear radiation exposure.
7.Correlation Analysis Between Ultrasonic Epiphysis Cartilage Thickness and Bone Age
Zeqing ZHAO ; Shi CHEN ; Li ZHANG ; Yixuan ZHANG ; Yamei YANG ; Yilin GU ; Fengdan WANG ; Hui PAN ; Xiao YANG ; Jianchu LI
Medical Journal of Peking Union Medical College Hospital 2024;15(3):694-701
Preliminary exploration of using ultrasound to quantitatively evaluate the development of epiphyseal cartilage and analyze its correlation with bone age, based on the ultrasound findings of the long bone joint end. A study was conducted on adolescents studying at a sports school in Jining from March to June 2023. Age, height and other information were recorded. Bone age assessment by X ray were performed within 1 week with an endocrinologist interpreted the bone age using the Greulich-Pyle atlas. Two sonographers scanned a total of 7 sites in the hand, wrist and knee joint of the non-dominant side (including the dorsal side of the third metacarpal head, the ulnar styloid process, the radial styloid process, the medial and the lateral femoral epicondyle, dorsal tibia, and medial tibial condyle). The ultrasonic epiphyseal cartilage thickness (UECT) was measured and its correlation with bone age was analyzed. Intraclass correlation coefficient (ICC) was used to evaluate the reliability and repeatability of UECT measurement. A total of 141 adolescents were included, with 80 males and 61 females. The average age was 13 (12-14) years old. The average bone age was 15(13-17) years in males and 16 (14-17) years in females. The proportion of the males and females whose bone age was 1 year older than chronological age was 60% and 67%, respectively, and the height of the males was significantly higher than that of the females( Ultrasound can observe and describe the developmental change of long bone, and UECT has potential value in quantitative evaluation of bone maturity.
8.Area Ossification Ratio: A New Parameter for Quantitative Assessment of Adolescent Bone Age by Conventional Ultrasonography
Yamei YANG ; Li ZHANG ; Yixuan ZHANG ; Zeqing ZHAO ; Yilin GU ; Shi CHEN ; Hui PAN ; Fengdan WANG ; Xiao YANG ; Jianchu LI
Medical Journal of Peking Union Medical College Hospital 2024;15(5):1192-1197
To research on area ossification ratio (AOR), a novel parameter for quantitatively assessing adolescent bone age by conventional ultrasonography, and evaluate the correlation between AOR and radiographic bone age. The study selected healthy adolescents from a middle school in Shandong Province in June 2023. Ultrasonic images were collected from five anatomical sites (the styloid process of the ulna, the styloid process of the radius, the lateral epicondyle of the femur, the medial condyle of the tibia, and the posterior median sagittal plane of the tibia). The second ossification center and epiphyseal area on these 2D ultrasound images were delineated to calculate AOR. This ratio was then compared with radiographic bone age measured by Greulich-Pyle (GP) atlas. Inter- and intra-observer consistency was evaluated using intraclass correlation coefficient (ICC) and the Bland-Altman method. A total of 179 healthy adolescents (109 males and 70 females) were included. For both genders, AOR of each site exhibited a significant to high correlation with radiological bone age ( The sum of AORs in adolescents is highly correlated with radiographic bone age, and the measurement method shows high repeatability. The AOR is a reliable parameter for the ultrasonic quantitative assessment of bone age in adolescents.
9.Correlation Analysis Between Ultrasound Ossification Ratio and Exercise Intensity in Adolescents
Li ZHANG ; Hanze DU ; Yixuan ZHANG ; Yamei YANG ; Zeqing ZHAO ; Xiaoyuan GUO ; Shi CHEN ; Hui PAN ; Xiao YANG ; Jianchu LI
Medical Journal of Peking Union Medical College Hospital 2024;15(5):1198-1203
To evaluate the correlation between ultrasound ossification ratio(OR) and exercise intensity among adolescents. This cross-sectional study used stratified sampling to select adolescents aged 11-15 years from a sports school and some ordinary middle schools in Shandong Province in June 2023. The participants were divided into two groups: competitive sports group (high exercise intensity), and general sports group (moderate exercise intensity), based on their exercise intensity. Ultrasound images of long bones from nine body regions (including 3 upper limb bones and 6 lower limb bones) were collected for both groups. Two sonographers interpreted the images and calculated the ultrasound OR values (the ratio of ossification center length to epiphyseal length on the standard ultrasound section). The intraclass correlation coefficient (ICC) was used to assess the consistency of image interpretation between the observers. Differences in ultrasound OR values between the two groups were compared, and multivariate Logistic regression analysis was performed to assess the correlation between ultrasound OR values and exercise intensity. A total of 252 adolescents who met the inclusion and exclusion criteria were included, with 154 in the competitive sports group (97 males and 57 females) and 98 in the general sports group (52 males and 46 females). The median height and average daily exercise duration were significantly higher in the competitive sports group than in the general sports group (all The medial femoral ultrasound OR value was correlated with exercise intensity among adolescents. This indicator may serve as an objective imaging parameter for assessing whether adolescent exercise meets recommended standards.
10.Association between ulcerative colitis and pancreatitis: a Mendelian randomization study
XU Jun ; XU Yaxin ; GAO Yanan ; YAO Ting ; SUN Suya ; CHEN Yamei
Journal of Preventive Medicine 2024;36(1):26-29, 33
Objective :
To examine the causal relationship between ulcerative colitis (UC) and pancreatitis, to provide basis for early screening of pancreatitis among UC patients.
Methods:
Genomic data of UC were obtained from 47 745 European individuals pooled by the International Inflammatory Bowel Disease Genetics Consortium, including 156 116 single nucleotide polymorphism (SNP), and genomic data of pancreatitis were obtained from 198 166 European individuals pooled from FinnGen, including 16 380 428 SNPs. Mendelian randomization (MR) analysis was performed using the inverse variance weighted (IVW) method with 72 UC-associated SNPs as instrumental variables and pancreatitis as the study outcome. The heterogeneity was assessed using Cochran Q test, the horizontal pleiotropy was assessed using MR-Egger regression, MR-PRESSO was performed with the exclusion of outliers, and effect of individual SNP on the results was tested with the leave-one-out method.
Results:
MR analysis results showed that patients with genetically predicted UC had an increased risk of pancreatitis relative to those without UC (OR=1.076, 95%CI: 1.019-1.136, P<0.05). Cochran Q test showed no heterogeneity (P>0.05), and MR-Egger regression did not reveal horizontal pleiotropy of instrumental variables (P>0.05). The MR analysis results were robust after removing SNP one by one.
Conclusions
Genetically predicted UC is associated with an increased risk of pancreatitis. The screening for pancreatitis risk should be enhanced in patients with UC.


Result Analysis
Print
Save
E-mail