1.Influencing factors for sarcopenia among elderly male patients with type 2 diabetes mellitus
LI Meilin ; ZHOU Mengjiao ; WU Jiayun ; YU Zhe ; KONG Liping
Journal of Preventive Medicine 2025;37(6):588-592
Objective:
To explore the influencing factors for sarcopenia among elderly male patients with type 2 diabetes (T2DM), so as to provide the basis for the early prevention and treatment of sarcopenia.
Methods:
Male T2DM patients aged 60 and above admitted to Hangzhou First People's Hospital from January to December 2024 were selected as the study subjects. Demographic data, T2DM complications, and blood biochemical parameters were collected. Physical activity levels were assessed using the Chinese version of the International Physical Activity Questionnaire. The diagnosis of sarcopenia was made according to the diagnostic procedures and criteria established by the Asian Working Group for Sarcopenia in 2019. Factors affecting sarcopenia among elderly male patients with T2DM were analyzed using multivariable logistic regression model.
Results:
A total of 455 elderly male patients with T2DM were surveyed, with a mean age of (71.80±9.55) years. The predominant physical activity level was moderate with 226 cases accounting for 49.67%. The disease course of T2DM was mainly from 10-<20 years, with 229 cases accounting for 50.33%. There were 140 cases of T2DM complications, accounting for 30.77%. A total of 138 cases of sarcopenia were detected, with a prevalence of 30.33%. Multivariable logistic regression analysis showed that age (OR=1.077, 95%CI: 1.003~1.156), body mass index (<18.5kg/m2, OR=11.056, 95%CI: 3.343~36.547; 18.5~<25.0 kg/m2, OR=2.633, 95%CI: 1.420~4.881), physical activity level (low, OR=2.469, 95%CI: 1.421~4.292), chronic obstructive pulmonary disease (yes, OR=1.871, 95%CI: 1.091~3.206), T2DM complications (yes, OR=3.015, 95%CI: 1.516~6.001), glycated hemoglobin (≥7%, OR=2.822, 95%CI: 1.423~5.590) and albumin (OR=0.810, 95%CI: 0.662~0.991) were factors affecting sarcopenia among elderly male patients with T2DM (P<0.05).
Conclusion
Advanced age, body mass index <25.0 kg/m2, low physical activity level, chronic obstructive pulmonary disease, T2DM complications, high glycated hemoglobin and low albumin are associated with a higher risk of sarcopenia in elderly male patients with T2DM.
2.PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in nasopharyngeal carcinoma
Ranran FENG ; Yilin GUO ; Meilin CHEN ; Ziying TIAN ; Yijun LIU ; Su JIANG ; Jieyu ZHOU ; Qingluan LIU ; Xiayu LI ; Wei XIONG ; Lei SHI ; Songqing FAN ; Guiyuan LI ; Wenling ZHANG
Journal of Pathology and Translational Medicine 2025;59(1):68-83
Background:
Nasopharyngeal carcinoma (NPC) is characterized by high programmed death-ligand 1 (PD-L1) expression and abundant infiltration of non-malignant lymphocytes, which renders patients potentially suitable candidates for immune checkpoint blockade therapies. Palate, lung, and nasal epithelium clone (PLUNC) inhibit the growth of NPC cells and enhance cellular apoptosis and differentiation. Currently, the relationship between PLUNC (as a tumor-suppressor) and PD-L1 in NPC is unclear.
Methods:
We collected clinical samples of NPC to verify the relationship between PLUNC and PD-L1. PLUNC plasmid was transfected into NPC cells, and the variation of PD-L1 was verified by western blot and immunofluorescence. In NPC cells, we verified the relationship of PD-L1, activating transcription factor 3 (ATF3), and β-catenin by western blot and immunofluorescence. Later, we further verified that PLUNC regulates PD-L1 through β-catenin. Finally, the effect of PLUNC on β-catenin was verified by co-immunoprecipitation (Co-IP).
Results:
We found that PLUNC expression was lower in NPC tissues than in paracancer tissues. PD-L1 expression was opposite to that of PLUNC. Western blot and immunofluorescence showed that β-catenin could upregulate ATF3 and PD-L1, while PLUNC could downregulate ATF3/PD-L1 by inhibiting the expression of β-catenin. PLUNC inhibits the entry of β-catenin into the nucleus. Co-IP experiments demonstrated that PLUNC inhibited the interaction of DEAD-box helicase 17 (DDX17) and β-catenin.
Conclusions
PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in NPC.
3.PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in nasopharyngeal carcinoma
Ranran FENG ; Yilin GUO ; Meilin CHEN ; Ziying TIAN ; Yijun LIU ; Su JIANG ; Jieyu ZHOU ; Qingluan LIU ; Xiayu LI ; Wei XIONG ; Lei SHI ; Songqing FAN ; Guiyuan LI ; Wenling ZHANG
Journal of Pathology and Translational Medicine 2025;59(1):68-83
Background:
Nasopharyngeal carcinoma (NPC) is characterized by high programmed death-ligand 1 (PD-L1) expression and abundant infiltration of non-malignant lymphocytes, which renders patients potentially suitable candidates for immune checkpoint blockade therapies. Palate, lung, and nasal epithelium clone (PLUNC) inhibit the growth of NPC cells and enhance cellular apoptosis and differentiation. Currently, the relationship between PLUNC (as a tumor-suppressor) and PD-L1 in NPC is unclear.
Methods:
We collected clinical samples of NPC to verify the relationship between PLUNC and PD-L1. PLUNC plasmid was transfected into NPC cells, and the variation of PD-L1 was verified by western blot and immunofluorescence. In NPC cells, we verified the relationship of PD-L1, activating transcription factor 3 (ATF3), and β-catenin by western blot and immunofluorescence. Later, we further verified that PLUNC regulates PD-L1 through β-catenin. Finally, the effect of PLUNC on β-catenin was verified by co-immunoprecipitation (Co-IP).
Results:
We found that PLUNC expression was lower in NPC tissues than in paracancer tissues. PD-L1 expression was opposite to that of PLUNC. Western blot and immunofluorescence showed that β-catenin could upregulate ATF3 and PD-L1, while PLUNC could downregulate ATF3/PD-L1 by inhibiting the expression of β-catenin. PLUNC inhibits the entry of β-catenin into the nucleus. Co-IP experiments demonstrated that PLUNC inhibited the interaction of DEAD-box helicase 17 (DDX17) and β-catenin.
Conclusions
PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in NPC.
4.PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in nasopharyngeal carcinoma
Ranran FENG ; Yilin GUO ; Meilin CHEN ; Ziying TIAN ; Yijun LIU ; Su JIANG ; Jieyu ZHOU ; Qingluan LIU ; Xiayu LI ; Wei XIONG ; Lei SHI ; Songqing FAN ; Guiyuan LI ; Wenling ZHANG
Journal of Pathology and Translational Medicine 2025;59(1):68-83
Background:
Nasopharyngeal carcinoma (NPC) is characterized by high programmed death-ligand 1 (PD-L1) expression and abundant infiltration of non-malignant lymphocytes, which renders patients potentially suitable candidates for immune checkpoint blockade therapies. Palate, lung, and nasal epithelium clone (PLUNC) inhibit the growth of NPC cells and enhance cellular apoptosis and differentiation. Currently, the relationship between PLUNC (as a tumor-suppressor) and PD-L1 in NPC is unclear.
Methods:
We collected clinical samples of NPC to verify the relationship between PLUNC and PD-L1. PLUNC plasmid was transfected into NPC cells, and the variation of PD-L1 was verified by western blot and immunofluorescence. In NPC cells, we verified the relationship of PD-L1, activating transcription factor 3 (ATF3), and β-catenin by western blot and immunofluorescence. Later, we further verified that PLUNC regulates PD-L1 through β-catenin. Finally, the effect of PLUNC on β-catenin was verified by co-immunoprecipitation (Co-IP).
Results:
We found that PLUNC expression was lower in NPC tissues than in paracancer tissues. PD-L1 expression was opposite to that of PLUNC. Western blot and immunofluorescence showed that β-catenin could upregulate ATF3 and PD-L1, while PLUNC could downregulate ATF3/PD-L1 by inhibiting the expression of β-catenin. PLUNC inhibits the entry of β-catenin into the nucleus. Co-IP experiments demonstrated that PLUNC inhibited the interaction of DEAD-box helicase 17 (DDX17) and β-catenin.
Conclusions
PLUNC downregulates the expression of PD-L1 by inhibiting the interaction of DDX17/β-catenin in NPC.
5.Summary of the best evidence for dietary management in adults with prediabetes
Meilin ZHOU ; Yuan ZHU ; Shuang ZHENG ; Lei CHEN ; Mei ZHAO
Chinese Journal of Modern Nursing 2025;31(19):2586-2593
Objective:To retrieve, evaluate and summarize evidence on dietary management in adults with prediabetes, and to provide an evidence-based basis for clinical nursing practice and patient self-management.Methods:Guidelines, expert consensus, clinical decisions, evidence summaries, and systematic reviews on dietary management of patients with prediabetes were electronically searched on domestic and international guideline websites, association websites, and databases in both Chinese and English. The search period was from database establishment to October 31, 2024. Quality assessment of the literature and extraction and summarization of the evidence was carried out.Results:A total of 17 papers were included, including six guidelines, three expert consensus, and eight systematic reviews and Meta-analysis. A total of 39 pieces of evidence were summarized, including eight themes of total energy intake; nutrient recommendations, cooking principles; dietary pattern selection; dietary supplement recommendations; food recommendations; synergy of diet, exercise and medication; and dietary guidance.Conclusions:The best evidence summarized can provide reference for clinical medical and nursing staff, patients with prediabetes and their families. Future evidence-based translational practice for dietary management in prediabetic patients according to this evidence summary should be based on clinical context and consideration of the individual patient's situation for dietary program development.
6.Summary of the best evidence for dietary management in adults with prediabetes
Meilin ZHOU ; Yuan ZHU ; Shuang ZHENG ; Lei CHEN ; Mei ZHAO
Chinese Journal of Modern Nursing 2025;31(19):2586-2593
Objective:To retrieve, evaluate and summarize evidence on dietary management in adults with prediabetes, and to provide an evidence-based basis for clinical nursing practice and patient self-management.Methods:Guidelines, expert consensus, clinical decisions, evidence summaries, and systematic reviews on dietary management of patients with prediabetes were electronically searched on domestic and international guideline websites, association websites, and databases in both Chinese and English. The search period was from database establishment to October 31, 2024. Quality assessment of the literature and extraction and summarization of the evidence was carried out.Results:A total of 17 papers were included, including six guidelines, three expert consensus, and eight systematic reviews and Meta-analysis. A total of 39 pieces of evidence were summarized, including eight themes of total energy intake; nutrient recommendations, cooking principles; dietary pattern selection; dietary supplement recommendations; food recommendations; synergy of diet, exercise and medication; and dietary guidance.Conclusions:The best evidence summarized can provide reference for clinical medical and nursing staff, patients with prediabetes and their families. Future evidence-based translational practice for dietary management in prediabetic patients according to this evidence summary should be based on clinical context and consideration of the individual patient's situation for dietary program development.
7.Compound ANBP promotes diabetic wound healing by regulating TCA circulation-related enzymes
Wei WANG ; Qian HOU ; Xinling HUANG ; Jun WANG ; Meilin ZOU ; Yarong DING ; Letian GUO ; Chenlei XIE ; Xinyu HUANG ; Li CHEN ; Zhongzhi ZHOU
Chinese Journal of Pathophysiology 2024;40(7):1283-1291
AIM:To investigate the effects of the compound ANBP on wound healing in diabetic rats and ex-plore its mechanism of action.METHODS:Ninety male SD rats were randomly divided into blank,model,compound ANBP,Beifuxin,and nicotinamide mononucleotide(NMN)groups,with 16 rats in each group.Wound healing in each group was observed and samples were taken on days 3,7 and 14 to analyze the wound healing rate.Local histopathological changes were observed using HE and Masson staining.The expressions of pyruvate dehydrogenase E1 subunit alpha 1(PDHA1),citrate synthase(CS),isocitrate dehydrogenase(IDH1)and oxoglutarate dehydrogenase(OGDH)were de-tected through immunofluorescence and Western blot.The number and morphology of mitochondria in the wound tissue were observed using transmission electron microscopy.RESULTS:Histomorphological changes revealed significant im-provement in diabetic wound healing in the blank and compound ANBP groups compared to that of the model group.The wound healing rates of the blank,compound ANBP,Beifuxin,and NMN groups were significantly increased on days 3,7,and 14(P<0.01).Compared to the model group,granulation tissue generation was higher in the other groups,cover-ing the wound defect and producing abundant collagen fibers.At 3,7,and 14 days after intervention,the blank,com-pound ANBP,Beifuxin,and NMN groups showed significantly enhanced fluorescence intensities of TCA cycling-related enzymes PDHA1,CS,IDH1,and OGDH indicating increased expression of these enzymes.The levels of the TCA cy-cling-related enzymes were significantly increased(P<0.01)in the compound ANBP,Beifuxin and NMN groups but were significantly decreased(P<0.01)in the model group.An increase in the number and density of mitochondria and a de-crease in the cavitation rate of mitochondria with improved morphology(P<0.05)was observed in the group treated with compound ANBP.CONCLUSION:Compound ANBP may increase the number of mitochondria,improve mitochondrial morphology and function,upregulate the expression levels of PDHA1,CS,IDH1,and OGDH proteins,and accelerate the regeneration of wound granulation tissue,thus promoting the healing of diabetic wounds in rats.
8.Factors affecting the social alienation among the elderly patients with type 2 diabetes mellitus
ZHOU Mengjiao ; LI Meilin ; KONG Liping
Journal of Preventive Medicine 2024;36(4):292-295
Objective:
To investigate the influencing factors for social alienation among the elderly patients with type 2 diabetes mellitus (T2DM), so as to provide insights into formulating targeted intervention measures.
Methods:
T2DM patients aged 60 years and older were selected from Hangzhou First People's Hospital from January to October 2023. Their demographics, diabetes complications were collected using questionnaire surveys, social support level was evaluated using the Social Support Scale, and the stigma was evaluated using the Chinese version of the Type 2 Diabetes Stigma Assessment Scale, and the social alienation was assessed using General Alienation Scale. Factors affecting the social alienation were identified among the elderly patients with T2DM using a multiple linear regression model.
Results:
A total of 316 elderly patients with T2DM were investigated, including 171 males (54.11%) and 145 females (45.89%), and had a mean age of (69.75±8.12) years. The level of social support was mainly medium, with 162 cases accounted for 51.27%. The average stigma scores were (61.87±12.50) points, and average social alienation scores were (42.09±6.33) points. Multiple linear regression analysis identified educational level (high school/junior college, β'=-0.159; college and above, β'=-0.301), marital status (married persons, β'=-0.236), monthly household income (3 000 Yuan and more, β'=-0.175), diabetes complications (β'=0.192), social support level (medium, β'=-0.210; high, β'=-0.352) and stigma score (β'=0.283) as factors affecting the social alienation among the elderly patients with T2DM.
Conclusion
The social alienation among the elderly patients with T2DM are associated with educational level, marital status, family income, diabetes complications, social support level and stigma.
9.Effects of rapid drug sensitivity testing for multidrug-resistant bacteria on the prognosis of patients with severe intra-abdominal infection
Jiajie WANG ; Jiayang LI ; Wenqi WU ; Mingjie QIU ; Cunxia WU ; Zhitao ZHOU ; Meilin WU ; Sai TIAN ; Lei WU ; Jinpeng ZHANG ; Zherui ZHANG ; Ruixia TIAN ; Zhiwu HONG ; Huajian REN ; Gefei WANG ; Xiuwen WU ; Jian'an REN
Chinese Journal of Gastrointestinal Surgery 2023;26(9):847-852
Objective:To examine the clinical value of rapid detection of drug-resistant bacteria by immunochromatography and the effects of rapid detection on the prognosis of patients with severe intra-abdominal infection complicated by carbapenem-resistant Enterobacteriaceae (CRE) bloodstream infection.Methods:This was a retrospective cohort study. We analyzed clinical data of 73 patients with severe abdominal infections with sepsis or septic shock complicated by CRE bloodstream infection admitted to the general surgery department of Jinling Hospital between February 2022 and February 2023. Patients were divided into a colloidal gold immunochromatographic assay (GICA) group (17 patients) and conventional testing group (56 patients) based on whether a GICA for CRE had been performed on the patients' first blood culture sample during the diagnosis and treatment process. There were no statistically significant differences between the GICA and conventional testing groups in age ([55.9±17.3] vs. [47.6±16.4] years), sex ([16 men vs. one woman ] vs. [41 men vs. 15 women]), median Charlson comorbidity index (3.0[2.0,4.0] vs. 3.0[2.0, 4.8]), septic shock (10 vs. 39), or acute kidney injury (8 vs. 40) (all P>0.05). Both groups routinely underwent traditional bacterial identification and drug susceptibility testing. Additionally, patients in the GICA group were tested directly for positive blood cultures using a GICA carbapenemase test kit. The main outcomes were mortality rates on Days 28 and 90 after the first identification of CRE bloodstream infection in both groups. We also compared the microbial clearance rate, duration of hospitalization and intensive care unit stay, and time from onset of CRE bloodstream infection to initiation of targeted and appropriate antibiotics between the two groups. Results:The rate of microbial clearance of bloodstream infection was significantly greater in the GICA group than in the conventional testing group (15/17 vs. 34/56 [60.7%], χ 2=4.476, P=0.034), whereas the 28-day mortality tended to be lower in the GICA than conventional testing group [5/17 vs. 44.6% [25/56], χ 2=1.250, P=0.264). The 90-day mortality (8/17 vs. 53.6% [30/56], χ 2=0.222, P=0.638), median duration of hospitalization (37.0 [18.0, 46.5] days vs. 45.5 [32.2, 64.8] days, Z=-1.867, P=0.062), and median duration of intensive care unit stay (18.0 [6.5, 35.0] days vs. 32.0 [5.0, 51.8] days, Z=-1.251, P=0.209). The median time between the onset of bloodstream infection and administration of antibiotics was 49.0 (38.0, 69.0) hours in the GICA group, which is significantly shorter than the 163.0 (111.8, 190.0) hours in the conventional testing group ( Z=-5.731, P<0.001). The median time between the onset of bloodstream infection and administration of appropriate antibiotics was 40.0 (34.0, 80.0) hours in the GICA group, which is shorter than in the conventional testing group (68.0 [38.2, 118.8]) hours; however, this difference is not statistically significant ( Z=-1.686, P=0.093). Conclusions:GICA can provide information on carbapenemase- producing pathogens faster than traditional drug sensitivity testing, enabling early administration of the optimal antibiotics. The strategy of 'carbapenemase detection first' for managing bacterial infection has the potential to improve prognosis of patients and reduce mortality rate.
10.Effect of helicobacter pylori eradication therapy on small intestinal bacterial overgrowth in children
Xiaoyue WANG ; Donglin SHEN ; Yulin ZHOU ; Meilin LI ; Lulu FANG
Clinical Medicine of China 2023;39(2):106-111
Objective:To investigate the effect of helicobacter pylori (HP) infection and eradication treatment on small intestinal bacterial overgrowth (SIBO) in children.Methods:A prospective case-control study was conducted to select 68 children with symptoms of abdominal distension, abdominal pain, diarrhea and suspected digestive system diseases admitted to the Affiliated Hospital of Xuzhou Medical University from June 2021 to June 2022. They were divided into HP negative group and HP positive group according to HP infection. HP positive group received triple standardized HP eradication treatment, 14 days as a course of treatment. The baseline SIBO positive rate and gastrointestinal symptom rating scale (GSRS) score of the two groups were compared. The HP positive group was followed up for 4 and 12 weeks after drug withdrawal for quantitative assessment of gastrointestinal symptoms and LHBT. The SIBO positive rate, GSRS score of the two groups and the change of SIBO positive rate and GSRS score of the HP positive group before and after treatment were compared. The measurement data with normal distribution were expressed, and independent sample t-test was used for comparison between the two groups. M( Q1, Q3) was used to represent the measurement data of non normal distribution, and Mann Whitney U test was used to compare the two groups; Friedman test was used for comparison between multiple time points, and Nemenyi test was used for pairwise comparison. Four grid table or paired χ 2 test was used to compare the counting data between groups. Results:The positive rate of SIBO in HP negative group was lower than that in HP positive group (36.1% (13/36) vs 62.5% (20/32)), the difference was statistically significant (χ 2=4.72, P=0.030). Four weeks after drug withdrawal, the SIBO positive rate in HP positive group was higher than that before treatment (87.5% (28/32) vs 62.5% (20/32)), and 12 weeks after drug withdrawal was lower than that before treatment (21.9% (7/32) vs 62.5% (20/32)), with statistically significant differences (χ 2=8.00, P=0.008; χ 2=13.00, P<0.001). There was no statistically significant difference in GSRS score between HP negative group and HP positive group ( P=0.098). The clinical symptoms of 32 children in HP positive group were improved 4 and 12 weeks after HP eradication was stopped. GSRS scores were lower than those before treatment (8.0 (6.0, 12.8), 7.0 (5.0, 9.0) points vs 15.0 (12.0, 19.0) points) , and the differences were statistically significant ( Z values were -3.91, -4.68, respectively; all P<0.001). Conclusions:HP infection can increase the positive rate of SIBO in children with suspected digestive system diseases. The standardized triple HP eradication therapy may further aggravate the overgrowth of intestinal bacteria while treating HP infection, but this effect can be eliminated after 12 weeks of treatment.


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