1.Hypoglycemic Effect and Mechanism of ICK Pattern Peptides
Lin-Fang CHEN ; Jia-Fan ZHANG ; Ye-Ning GUO ; Hui-Zhong HUANG ; Kang-Hong HU ; Chen-Guang YAO
Progress in Biochemistry and Biophysics 2025;52(1):50-60
Diabetes is a very complex endocrine disease whose common feature is the increase in blood glucose concentration. Persistent hyperglycemia can lead to blindness, kidney and heart disease, neurodegeneration, and many other serious complications that have a significant impact on human health and quality of life. The number of people with diabetes is increasing yearly. The global diabetes prevalence in 20-79 year olds in 2021 was estimated to be 10.5% (536.6 million), and it will rise to 12.2% (783.2 million) in 2045. The main modes of intervention for diabetes include medication, dietary management, and exercise conditioning. Medication is the mainstay of treatment. Marketed diabetes drugs such as metformin and insulin, as well as GLP-1 receptor agonists, are effective in controlling blood sugar levels to some extent, but the preventive and therapeutic effects are still unsatisfactory. Peptide drugs have many advantages such as low toxicity, high target specificity, and good biocompatibility, which opens up new avenues for the treatment of diabetes and other diseases. Currently, insulin and its analogs are by far the main life-saving drugs in clinical diabetes treatment, enabling effective control of blood glucose levels, but the risk of hypoglycemia is relatively high and treatment is limited by the route of delivery. New and oral anti-diabetic drugs have always been a market demand and research hotspot. Inhibitor cystine knot (ICK) peptides are a class of multifunctional cyclic peptides. In structure, they contain three conserved disulfide bonds (C3-C20, C7-C22, and C15-C32) form a compact “knot” structure, which can resist degradation of digestive protease. Recent studies have shown that ICK peptides derived from legume, such as PA1b, Aglycin, Vglycin, Iglycin, Dglycin, and aM1, exhibit excellent regulatory activities on glucose and lipid metabolism at the cellular and animal levels. Mechanistically, ICK peptides promote glucose utilization by muscle and liver through activation of IR/AKT signaling pathway, which also improves insulin resistance. They can repair the damaged pancrease through activation of PI3K/AKT/Erk signaling pathway, thus lowering blood glucose. The biostability and hypoglycemic efficacy of the ICK peptides meet the requirements for commercialization of oral drugs, and in theory, they can be developed into natural oral anti-diabetes peptide drugs. In this review, the structural properties, activity and mechanism of ICK pattern peptides in regulating glucose and lipid metabolism were summaried, which provided a reference for the development of new oral peptides for diabetes.
2.Chinesization of the HEMO-FISS-QoL questionnaire and its reliability and validity
Songpeng SUN ; Shan JIA ; Fangfang XU ; Tianyu LI ; Zhiyun ZHANG ; Qiaorong CAO ; Xinjian LI ; Yao WU ; Weiping WAN ; Bin SHI ; Jianguo WANG ; Hong NI ; Longyu LIANG ; Xingxiao HUO ; Tianqing YANG ; Lei TIAN ; Ying TIAN ; Mei LIN ; Zhanjun WANG ; Yangyang ZHOU ; Hongchuan CHU ; Riyu LIAO ; Kuerban XIEYIDA ; Junhong LONG ; Shuxin ZHANG
Chinese Journal of Behavioral Medicine and Brain Science 2024;33(1):75-82
Objective:To evaluate the reliability and validity of the Chinese version of HEMO-FISS-QoL(HF-QoL) questionnaire (HF-QoL-C) in the Chinese population with hemorrhoids.Methods:From November 2021 to November 2022, a self-constructed general information questionnaire, HF-QoL-C, and the 36-item short form health survey (SF-36), Goligher classification, and Giordano severity of hemorrhoid symptom questionnaire (GSQ) were used to conduct a questionnaire survey on 760 hemorrhoid patients in the anorectal department of six hospitals. The data was analyzed for reliability and validity using SPSS 21.0 and AMOS 26.0 software.Results:The Cronbach's α coefficient of HF-QoL-C and its dimension ranged from 0.831 to 0.960, and the split coefficient was 0.832-0.915. Four common factors were extracted through principal component exploratory factor analysis. Confirmatory factor analysis indicated acceptable structural validity( χ2/ df=8.152, RSMEA=0.097, CFI=0.881, IFI=0.881, NFI=0.867). HF-QoL-C was correlated with SF36 and GSQ( r=-0.694, 0.501, both P<0.01). There were differences in the total score and dimensional scores of HF-QoL-C between surgical and drug treated patients, different grades of Goligher classification for hemorrhoidal disease, and different ranges of hemorrhoid prolapse (all P<0.001). No ceiling effect was found in the total score and the scores of each dimension(0.3%-2.0%). There was a floor effect in both psychological function and sexual activity dimensions (16.7%, 35.1%). Conclusion:HF-QoL-C has good reliability and validity, which can be used to measure the quality of life of Chinese hemorrhoid patients.
3.Clinical and pathological features of 52 patients with glomerulonephritis with dominant C3
Jinying WEI ; Yao HUANG ; Shuguang YUAN ; Xiaojun CHEN ; Xiao FU ; Zheng LI ; Ying LI ; Lin SUN ; Hong LIU ; Xuejing ZHU
Journal of Central South University(Medical Sciences) 2024;49(1):75-83
Objective:With the in-depth study of complement dysregulation,glomerulonephritis with dominant C3 has received increasing attention,with a variety of pathologic types and large differences in symptoms and prognosis between pathologic types.This study analyzes the clinical,pathological,and prognostic characteristics of different pathological types of glomerulonephritis with dominant C3,aiming to avoid misdiagnosis and missed diagnoses. Methods:The clinical,pathological,and follow-up data of 52 patients diagnosed as glomerulonephritis with dominant C3 by renal biopsy from June 2013 to October 2022 were retrospectively analyzed.According to the clinical feature and results of pathology,15 patients with post-infectious glomerulonephritis(PIGN)and 37 patients with of non-infectious glomerulonephritis(N-PIGN)were classified.N-PIGN subgroup analysis was performed,and 16 patients were assigned into a C3-alone-deposition group and 21 in a C3-dominant-deposition group,or 27 in a C3 glomerulopathy(C3G)group and 10 in a non-C3 nephropathy(N-C3G)group. Results:The PIGN group had lower creatinine values(84.60 μmol/L vs 179.62 μmol/L,P= 0.001),lower complement C3 values(0.36 g/L vs 0.74 g/L,P<0.001)at biopsy,and less severe pathological chronic lesions compared with the N-PIGN group.In the N-PIGN subgroup analysis,the C3-dominant-deposition group had higher creatinine values(235.30 μmol/L vs 106.70 μmol/L,P=0.004)and higher 24-hour urine protein values(4 025.62 mg vs 1 981.11 mg,P=0.037)than the C3-alone-deposition group.The prognosis of kidney in the PIGN group(P=0.049),the C3-alone-deposition group(P=0.017),and the C3G group(P=0.018)was better than that in the N-PIGN group,the C3-dominant-deposition group,and the N-C3G group,respectively. Conclusion:Glomerulonephritis with dominant C3 covers a variety of pathological types,and PIGN needs to be excluded before diagnosing C3G because of considerable overlap with atypical PIGN and C3G;in addition,the deposition of C1q complement under fluorescence microscope may indicate poor renal prognosis,and relevant diagnosis,treatment,and follow-up should be strengthened.
4.Risk assessment on postoperative pneumonia in the surgical department of a tertiary comprehensive teaching hospital
Yao YAO ; Zhu-Hong ZHA ; Guang-Ying LUO ; Dan LIN ; Ni ZENG
Chinese Journal of Infection Control 2024;23(2):214-219
Objective To conduct risk assessment analysis through risk assessment model for postoperative pneu-monia(POP)in surgical departments constructed according to analytic hierarchy process(AHP)-risk matrix,and evaluate the application effectiveness of the model.Methods Taking a tertiary comprehensive teaching hospital as an example,a risk assessment was conducted on the occurrence of POP in 15 surgical departments in 2022.The ap-plication effect of POP risk assessment model for the surgical departments constructed based on the AHP-risk ma-trix was evaluated,and the POP risk level of the surgical departments was determined.Results Through applica-tion of risk assessment model,the POP risk level of the surgical departments was divided into 5 levels,namely ex-tremely high risk(n=3),high risk(n=1),medium risk(n=5),low risk(n=4),and extremely low risk(n=2).Conclusion The application effect of the surgical POP risk assessment model based on AHP-risk matrix method is good,achieving quantitative assessment of healthcare-associated infection risk,and providing data basis and support for further targeted risk control.
5.Effect of circDNMT1 regulating miR-377-3p/PUM1 axis on proliferation,apoptosis and epithelial-mesenchymal transition of triple-negative breast cancer cells
Ming-Li LIN ; Mei-Ling ZHENG ; Hong-Quan LU ; Yao-Ting LIN
Journal of Regional Anatomy and Operative Surgery 2024;33(1):1-7
Objective To investigate the effects of circDNMT1 on the proliferation,apoptosis and epithelial-mesenchymal transition(EMT)of triple-negative breast cancer(TNBC)cells by regulating miR-377-3p/PUM1 axis.Methods The TNBC tissues and adjacent normal tissues of 24 patients with TNBC treated in Danzhou People's Hospital from 2018 to 2021 were collected.qRT-PCR and Western blot were used to detect the expression of circDNMT1,miR-377-3p,and PUM1 protein in tissue and mouse normal breast epithelial cell line HC11 and TNBC cell lines 4T1,Eph41424,and JC.4T1 cells were divided into the 4T1 group(untransfected),the si-NC group(transfected with si-NC),the si-DNMT1 group(transfected with si-DNMT1),the si-DNMT1+anti-NC group(simultaneously transfected with si-DNMT1 and anti-NC),and the si-DNMT1+anti-miR-377-3p group(simultaneously transfected with si-DNMT1 and anti-miR-377-3p).qRT-PCR was used to detect the expression of circDNMT1 and miR-377-3p of 4T1 cells in each group;CCK-8 was used to detect the proliferation of 4T1 cells in each group;flow cytometry was used to detect the apoptosis of 4T1 cells in each group;Western blot was used to detect the expression of PUM1,EMT-related proteins and apoptosis-related proteins of 4T1 cells in each group;TargetScan website was used to predict the binding sites of miR-377-3p with circDNMT1 and PUM1;dual luciferase report was used to verify the targeting relationships of miR-377-3p with circDNMT1 and PUM1.After inoculation with 4T1 cells,BALB/c mice were randomly divided into the blank control group(injected with equal amount of normal saline),the negative control group(injected with si-NC via tail vein),the DNMT1 silencing group(injected with si-DNMT1 via tail vein),the combined control group(injected with si-DNMT1 and anti-NC via tail vein),and the combined silencing group(injected with si-DNMT1 and anti-miR-377-3p via tail vein),the tumor massess of mice were recorded and the morphological changes of tumors were observed by hematoxylin-eosin staining.Results circDNMT1 and PUM1 were up-regulated in TNBC tissues and cells,and miR-377-3p was down-regulated.The expression difference was most obvious in 4T1 cells,so 4T1 cells were selected for subsequent experiments.Compared with the 4T1 group and the si-NC group,the expression of miR-377-3p,the apoptosis rate of 4T1 cells,the expression levels of Bax,cleaved caspase-3 and E-cadherin protein of 4T1 cells in the si-DNMT1 group were significantly increased(P<0.05),the circ-DNMT1 level,the expression level of PUM1 protein,OD values at 24 hours and 48 hours,the expression level of Bcl-2,N-cadherin,Vimentin protein were significantly decreased(P<0.05).Compared with the si-DNMT1 group and the si-DNMT1+anti-NC group,the expression of miR-377-3p,the apoptosis rate of 4T1 cells,the expression levels of Bax,cleaved caspase-3 and E-cadherin proteins of 4T1 cells in the si-DNMT1+anti-miR-377-3p group were significantly decreased(P<0.05),the expression level of PUM1 protein,OD values at 24 hours and 48 hours,the expression levels of Bcl-2,N-cadherin,Vimentin proteins were significantly increased(P<0.05).Compared with the miR-NC+WT-circDNMT1 group,the cell luciferase activity in the miR-377-3p mimic+WT-circDNMT1 group was significantly decreased(P<0.05);compared with the miR-NC+WT-PUM1 group,the cell luciferase activity in the miR-377-3p mimic+WT-PUM1 group was significantly decreased(P<0.05).The tumor cells in the blank control group and the negative control group were densely arranged with clear boundary;the tumor cells in the DNMT1 silencing group and the combined control group were loosely arranged,the nuclei were pyknotic,and the cell fragments were increased;the tumor cells in the combined silencing group were densely arranged and the boundaries tended to be clear.Compared with the blank control group and the negative control group,the tumor mass of mice in the DNMT1 silencing group was significantly decreased(P<0.05).Compared with the DNMT1 silencing group and the combined control group,the tumor mass of mice in the combined silencing group was significantly increased(P<0.05).Conclusion Silencing circDNMT1 may inhibit the expression of PUM1 by up-regulating miR-377-3p,thereby inhibiting the proliferation and EMT of TNBC cells,and promoting cell apoptosis.
6. Advances in relationship between pyroptosis and pulmonary arterial hypertension and therapeutic drugs
Qian YAN ; Yang SUN ; Jun-Peng LONG ; Jiao YAO ; Yu-Ting LIN ; Song-Wei YANG ; Yan-Tao YANG ; Gang PEI ; Qi-Di AI ; Nai-Hong CHEN ; Qian YAN ; Yang SUN ; Jun-Peng LONG ; Jiao YAO ; Yu-Ting LIN ; Song-Wei YANG ; Yan-Tao YANG ; Gang PEI ; Qi-Di AI ; Nai-Hong CHEN ; Sha-Sha LIU ; Nai-Hong CHEN
Chinese Pharmacological Bulletin 2024;40(1):25-30
Pyroptosis is the programmed death of cells accompanied by an inflammatory response and is widely involved in the development of a variety of diseases, such as infectious diseases, cardiovascular diseases, and neurodegeneration. It has been shown that cellular scorching is involved in the pathogenesis of pulmonary arterial hypertension ( PAH) in cardiovascular diseases. Patients with PAH have perivascular inflammatory infiltrates in lungs, pulmonary vasculopathy exists in an extremely inflam-matory microenvironment, and pro-inflammatory factors in cellular scorching drive pulmonary vascular remodelling in PAH patients. This article reviews the role of cellular scorch in the pathogenesis of PAH and the related research on drugs for the treatment of PAH, with the aim of providing new ideas for clinical treatment of PAH.
7.Nursing study of segmented enteral nutrition combined with fistuloclysis to improve the nutritional status of patients with severe intestinal fistula
Min-Yi ZHOU ; Min QING ; Hong-Lin YAO ; Ze-Hua ZHAO ; Shan-Shan YU
Parenteral & Enteral Nutrition 2024;31(3):162-166
Objective:To study the effect of segmented enteral nutrition combined with fistuloclysis on improving the nutritional status of patients with severe intestinal fistula,to explore the impact of nutritional support methods on the recovery of severe intestinal fistula,and to provide nursing experience for patients with severe intestinal fistula. Methods:96 patients with severe intestinal fistulas complicated by multiple fistulas admitted to the intensive care unit of Research Institute of General Surgery from February 2023 to August 2023 were selected. According to the nutritional support method,they were divided into intervention group (n=47) and control group (n=49). The intervention group used segmented enteral nutrition combined with fistuloclysis,and the control group only used segmented enteral nutrition. After 14 days of enteral nutrition intervention,the nutritional status of the two groups was compared,such as BMI,serum albumin levels,total protein levels,and hemoglobin levels;inflammation levels,such as serum C-reactive protein (CRP) levels,interleukin-6 (IL-6),enteral Incidence of nutritional intolerance symptoms,prognosis such as total ICU length of stay,total hospitalization costs,etc. Results:After 14 days intervention,the serum total protein and hemoglobin of the intervention group were (71.55±7.00) g/L and (106.64±15.59) g/L,which were significantly higher than those of the control group (P<0.05). The BMI of the intervention group was (21.83±4.44)kg/m2,and BMI in the control group was (19.64±3.16)kg/m2. The difference was statistically significant (P<0.05). The CRP level in the intervention group was (35.71±27.77) mg/L,which was significantly lower than that in the control group[(56.78±51.22) mg/L,P<0.05]. The IL-6 level in the intervention group was (30.20±24.47) pg/mL,which was also significantly lower than that in the control group[(76.18±54.36)pg/mL,P<0.05]. Conclusion:Segmented enteral nutrition combined with fistuloclysis is beneficial to improving patients' nutritional status,reducing inflammatory reactions,reducing the incidence of enteral nutrition intolerance,and reducing the length of total hospitalization.
8.Correlation analysis of phase angle with nutritional risk and clinical outcomes in patients with severe acute pancreatitis
Lan DING ; Yue FU ; Ze-Hua ZHAO ; Hong-Lin YAO ; Xiang-Hong YE
Parenteral & Enteral Nutrition 2024;31(4):252-256
Objective:To investigate the relationship between phase angle (PA) and nutritional status,duration of mechanical ventilation,length of intensive care unit (ICU) stay,and clinical outcomes in patients with severe acute pancreatitis (SAP) complicated with ARDS. Methods:The clinical data of patients with SAP complicated with ARDS admitted to the surgical ICU,Jinling hospital,medical school of Nanjing University,from July 2023 to March 2024 were retrospectively collected. Patients are divided into low-PA group and normal-PA group based on phase angle. The correlation analysis between phase angle,nutritional status,and clinical outcomes,and evaluation of risk factors for mortality in patients with SAP combined with ARDS were performed. Result:A total of 83 patients with SAP complicated with ARDS were included in this study. PA was negatively correlated with nutritional risk scores (rs=-0.352,P=0.001),duration of mechanical ventilation (rp=-0.475,P<0.001),length of ICU stay (rp=-0.313,P=0.004),and mortality (rs=-0.371,P=0.001). Univariate analysis showed statistically significant differences in age,PA value,and duration of mechanical ventilation for predicting mortality (P<0.05);Multivariate analysis showed that the PA value was an independent risk factor for mortality (P<0.05). Conclusion:PA is significantly correlated with clinical outcomes,such as nutritional risk,duration of mechanical ventilation,length of ICU stay and mortality,and may be a promising biomarker in future.
9.Summary of best evidence for case management of home enteral nutrition patients
Chun-Yan LIU ; Hong-Lin YAO ; Jia-Qi LI ; Shuo SHEN ; Ze-Hua ZHAO ; Xiang-Hong YE
Parenteral & Enteral Nutrition 2024;31(5):306-311
Objective:To summarize the best evidence on case management of patients with home enteral nutrition.Methods:Relevant evidence on the case management of home enteral nutrition patients was retrieved by literature search,and the evidence was extracted and summarized for the literature that met the quality requirements.Result:A total of 10 literatures were included,including 1 guideline,3 expert consensus,2 industry standards,1 systematic review and 3 randomized controlled trials.By establishment of archives,policy management,establishment of multidisciplinary teams,overall evaluation of home enteral nutrition,as well as implementation management,a total of 33 home enteral nutrition case management was summarized from 6 aspects including health education and follow-up,etc.Conclusion:All the summarized relevant evidence about case filing and management of home enteral nutrition patients can be applied in clinical practice to promote the standardized management of home enteral nutrition.
10.Comparison of efficacy and safety between hypofractionated radiotherapy and conventional radiotherapy after breast-conserving surgery
De-Shun YAO ; Zhi-Guo SUN ; Yu-Lin HUANG ; Hong-Fang ZHAI ; Hai-Feng CAI
Medical Journal of Chinese People's Liberation Army 2024;49(5):519-526
Objective To compare the efficacy and safety between hypofractionated radiotherapy(HyRt)and conventional radiotherapy after breast-conserving surgery.Methods This study was a single-center,prospective,randomized controlled study.Eighty-three patients with pTis-T2N0M0 breast cancer admitted to Tangshan People's Hospital from May 2017 to May 2019 were included.The patients received breast-conserving surgery+sentinel lymph node biopsy(SLNB).After surgery,they were treated with intensity modulated radiation therapy(IMRT).According to random table method,patients were divided into HyRt group(n=41)and conventional radiotherapy group(n=42).The dose of organs at risk,treatment efficacy,treatment failure modes,and radiotherapy related adverse reactions were analyzed in the two groups.The radiotherapy-related adverse reactions were evaluated according to NCI CTC AE Version 3.0,including radiation dermatitis,radiation pneumonia,breast/skin fibrosis,pulmonary fibrosis,etc.Results Eighty-three patients with breast cancer were included,with a median age of 44(26-67)years.There was no statistically significant difference in clinical parameters such as age(P=0.443),TNM stage(P=0.335),molecular typing(P=0.333),degree of differentiation(P=0.617),and pathological type(P=0.127)between the two groups of patients.Compared with conventional radiotherapy group,the V5(25.6%vs.33.8%,P=0.015),V20(13.3%vs.17.2%,P=0.042),and the mean radiation dose(MLD;7.4 Gy vs.10.4 Gy,P=0.020)of the affected lung of HyRt group significantly decreased.Only 3 patients in this study experienced distant metastasis,and no regional lymph node metastasis or local recurrence was observed.There was no significant difference in PFS rate at 2 years between HyRt group and conventional radiotherapy group(94.4%vs.85.2%,P=0.818).Compared with conventional radiotherapy group,the incidence of≥grade Ⅱ irradiation dermatitis in HyRt group was significantly reduced(2.4%vs.21.4%,P=0.015).There was no difference in the incidence of grade Ⅰ breast/skin fibrosis(19.5%vs.14.3%,P=0.570)between the two groups,and no grade Ⅲ radiotherapy-related side effects were observed in the two groups.Conclusions Compared with conventional radiotherapy with simultaneously integrated boosting-intensity modulated radiotherapy,the patients who received HyRt after breast-conserving surgery for early-stage breast cancer have good tolerance and low incidence of adverse reactions.HyRt can be used as the first option of radiation therapy.

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