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diabetes and pulmonary infection:how hyperglycaemia shapes the immune system

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1245-1246页

作者： Christian Herder Michael Roden Nicolas Venteclef Institute for Clinical Diabetology German Diabetes CenterLeibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf40225DüsseldorfGermany German center for diabetes Research(DZD) Partner Düsseldorf85764München-NeuherbergGermany Department of endocrinology and Diabetology Medical Faculty and University Hospital DüsseldorfHeinrich Heine University Düsseldorf40225DüsseldorfGermany Institut Necker-Enfants Malades(INEM) UniversitéParis CitéINSERM UMR-S1151CNRS UMR-S8253ParisFrance

In a recent study published in Nature,Nobs and colleagues aimed to identify novel mechanisms that may explain why diabetes is associated with an increased susceptibility to viral respiratory *** analyses revealed a central role of lung dendritic cells(DC)which exhibited several functional defects induced by hyperglycaemia and consequently result in impaired antiviral immune responses.

关键词： impaired lung respiratory

Potential modifying effect of grip strength on the association between glycated hemoglobin(HbA1c)and all-cause mortality in older adults with type 2 diabetes:Evidence from UK Biobank

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Chinese Medical Journal 2024年第12期137卷 1501-1503页

作者： Jingyi Lu Yaxin Wang Yun Shen Yifei Mo Xiaojing Ma Gang Hu Jian Zhou Department of endocrinology and Metabolism Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai Clinical Center for DiabetesShanghai Key Clinical Center for Metabolic DiseaseShanghai Key Laboratory of Diabetes MellitusShanghai 200233China Shanghai diabetes Institute Shanghai Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200233China Pennington Biomedical Research center Baton RougeLA 70808USA

To the Editor:Frailty status represents one of the core determinants for the individualization of glycated hemoglobin(HbA1c)targets in the elderly ***,the most validated tools to quantify frailty,which are complex and involve multiple dimensions of assessment,are rarely used in the clinical practice of diabetes ***,a simple and practical metric for the evaluation of frailty is *** strength is an easily measurable,objective,and reproducible metric for assessing frailty status.[1]It is correlated with overall muscle strength and has been reported to be signicantly related to important health outcomes both in the general population[2,3]and in patients with diabetes.[4]Therefore,grip strength could be a useful marker for patient strati-cation in diabetes *** this context,this study aimed to examine the associations between HbA1c and all-cause mortality across categories of grip strength,as a measure of frailty status,in older adults with type 2 diabetes in the UK *** researches had applied to access the UK Biobank database with the application approval number of 82812.

关键词： diabetes mortality strength

Individualized coefficient of variability cut-off values for reducing the risk of hypoglycemia in Chinese type 1 diabetes mellitus(T1DM)patients

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Chinese Medical Journal 2024年第2期137卷 244-246页

作者： Jiaqi Li Keyu Guo Liyin Zhang Jianan Ye Xia Li Zhiguang Zhou Lin Yang National Clinical Research center for Metabolic Diseases Key Laboratory of Diabetes Immunology(Central South University)Ministry of Educationand Department of Metabolism and EndocrinologyThe Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China

To the Editor:Type 1 diabetes mellitus(T1DM)is a progressive disease caused by severe islet b-cell function impairment,resulting in high glucose variability(GV)in patients.[1]While intensive insulin treatment enabled T1DM patients to achieve near-normal glucose,reflected by reduced hemoglobin A1c(HbA1c)levels,stricter HbA1c targets were associated with an increased risk of hypoglycemia,which would compromise patients’quality of life and survival.[2]Recent studies suggest that GV reflects hypoglycemia better than HbA1c alone,and continuous glucose monitoring(CGM)provides a more comprehensive glycemic profile for better glucose indices assessment.[3]Therefore,we aimed to explore the relationship between the coefficient of variability(CV)of blood glucose and hypoglycemia in T1DM patients with different HbA1c levels and to identify the optimal cut-off values of CV for reducing the hypoglycemia risk in Chinese T1DM patients.

关键词： T1DM patients mellitus

Implications of glycemic risk index across different levels of glycated hemoglobin(HbA1c)in type 1 diabetes

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Chinese Medical Journal 2024年第4期137卷 481-483页

作者： Binbin He Li Fan Chao Deng Fang Liu Yuting Xie Zhiguang Zhou Xia Li Department of Metabolism and endocrinology National Clinical Research Center for Metabolic DiseasesKey Laboratory of Diabetes Immunology(Central South University)Ministry of EducationThe Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China

To the Editor:Glycemic control in individuals with type 1 diabetes(T1D)is challenging and requires multidimensional evaluation and precise *** hemoglobin(HbA1c)is currently the gold standard for assessing glucose control and predicting diabetes ***,it exhibits limitations in terms of accuracy,which is influenced by clinical factors,^([1])and its inability to reflect information about hypoglycemia and glycemic variability.[2]Continuous glucose monitoring(CGM)has revolutionized glycemic profile evaluation by introducing novel glycemic variables that surpass conventional parameters and offer insights into critical areas for improving glycemic control.

关键词： diabetes precise insight

Development and validation of a novel non-invasive test for diagnosing nonalcoholic fatty liver disease in Chinese children

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World Journal of Pediatrics 2024年第4期20卷 413-421页

作者： Zhe-Wen Qin Qian-Nan Ren Hong-Xi Zhang Ya-Ru Liu Ke Huang Wei Wu Guan-Ping Dong Yan Ni Jun-Fen Fu Division of endocrinology National Clinical Research Center for Child HealthNational Children’s Regional Medical CenterThe Children’s HospitalDepartment of EndocrinologyNational Clinical Research Center for Child HealthNational Children’s Regional Medical CenterThe Children’s HospitalZhejiang University School of MedicineHangzhou310052China

With the exploding prevalence of obesity,many children are at risk of developing nonalcoholic fatty liver *** anthropometric and laboratory parameters,our study aimed to develop a model to quantitatively evaluate liver fat content(LFC)in children with *** A well-characterized cohort of 181 children between 5 and 16 years of age were recruited to the study in the endocrinology Department as the derivation *** external validation cohort comprised 77 *** assessment of liver fat content was performed using proton magnetic resonance *** and laboratory metrics were measured in all subjects.B-ultrasound examination was carried out in the external validation *** Kruskal-Wallis test,Spearman bivariate correlation analyses,univariable linear regressions and multivariable linear regression were used to build the optimal predictive *** The model was based on indicators including alanine aminotransferase,homeostasis model assessment of insulin resistance,triglycerides,waist circumference and Tanner *** adjusted R^(2)of the model was 0.589,which presented high sensitivity and specificity both in internal[sensitivity of 0.824,specificity of 0.900,area under curve(AUC)of 0.900 with a 95%confidence interval:0.783–1.000]and external validation(sensitivity of 0.918 and specificity of 0.821,AUC of 0.901 with a 95%confidence interval:0.818–0.984).Conclusions Our model based on five clinical indicators was simple,non-invasive,and inexpensive;it had high sensitivity and specificity in predicting LFC in ***,it may be useful for identifying children with obesity who are at risk for developing nonalcoholic fatty liver disease.

关键词： Biochemical markers Children Magnetic resonance spectroscopy Nonalcoholic fatty liver disease Pediatric obesity

Drawing lines in the sand: The growing threat of obesity in type 1 diabetes

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World Journal of diabetes 2024年第5期15卷 823-827页

作者： Theocharis Koufakis Dimitrios Patoulias Ioanna Zografou Nikolaos Papanas Djordje S Popovic Second Propedeutic Department of Internal Medicine Aristotle University of ThessalonikiThessaloniki 54642Greece diabetes Centre Second Department of Internal MedicineDemocritus University of ThraceAlexandroupolis 68100Greece Clinic for endocrinology Diabetes and Metabolic DisordersClinical Center of VojvodinaMedical FacultyUniversity of Novi SadNovi Sad 21000Serbia

In this editorial,we comment on the article by Zeng et al published in the recent issue of the World Journal of diabetes in *** focus on the epidemiological,pathophysiological,and clinical interplay between obesity and type 1 diabetes mellitus(T1DM).Overweight and obesity represent a growing threat for modern societies and people with T1DM could not be an exception to this *** exogenous insulin administration,genetic and epigenetic factors,and psy-chosocial and behavioral parameters,along with the modern way of life that incorporates unhealthy eating patterns and physical inactivity,set the stage for the increasing obesity rates in *** our knowledge of the underlying mechanisms that lead to the development of obesity and hyperglycemia expands,it becomes clear that there are overlap zones in the pathophysiology of the two main types of *** regarding strict dividing lines between“autoimmune”and“metabolic”phenotypes increase the risk of trapping physicians into ineffective therapeutic approaches,instead of individualized diabetes *** this context,the use of adjuncts to insulin therapy that have the potential to alleviate cardiorenal risk and decrease body weight can reduce the burden of obesity in patients with T1DM.

关键词： Obesity Overweight Type 1 diabetes Metabolic syndrome

Deferred revascularization in diabetic patient according to combined invasive functional and intravascular imaging data:A case report

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World Journal of Clinical Cases 2024年第13期12卷 2269-2274页

作者： Arif Al Nooryani Wael Aboushokka Branko Beleslin Biljana Nedeljkovic-Beleslin Department of Cardiology Al Qassimi HospitalSharjah 1234United Arab Emirates Department of Cardiology Medical FacultyUniversity of BelgradeBelgrade 11000Serbia Institute of endocrinology Diabetes and Metabolic DisordersUniveristy Clinical Center of SerbiaBelgrade 11000Serbia Department of Internal Medicine/endocrinology Medical facultyUniversity of BelgradeBelgrade 11000Serbia

BACKGROUND Invasive functional evaluation by fractional flow reserve(FFR)is considered as a gold standard for the evaluation of intermediate coronary ***,in patients with diabetes due to accelerated progression of atherosclerosis the outcome may be worse even in the presence of negative functional *** SUMMARY We present a case of 55-year-old male diabetic patient who was admitted for chest *** coronary angiography disclosed 2 intermediate stenoses of the obtuse marginal branch with no evidence of restenosis on previously implanted *** undergone invasive functional testing of intermediate lesion with preserved FFR(0.88),low coronary flow reserve(1.2)and very high index of microvascular resistance(84).Due to discrepancy in invasive functional parameters,intravascular imaging with optical coherence tomography showed fibrotic stenoses without signs of thin-sup *** of the preserved FFR and no signs of vulnerable plaque,the interventional procedure was deferred and the patient continued with optimal *** Combined functional and anatomic imaging of intermediate coronary stenosis in diabetic patients represent comprehensive contemporary decision pathway in the management of the patients.

关键词： Fractional flow reserve Coronary flow reserve Index of microvascular resistance Optical coherence tomography Intermediate coronary stenosis Case report

Serum 25-hydroxyvitamin D,genetic susceptibility,and the risk of incident type 2 diabetes:A prospective cohort in East China

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Chinese Medical Journal 2024年第8期137卷 972-979页

作者： Ying Sun Haojie Zhang Bin Wang Yuying Wang Chi Chen Yi Chen Yingli Lu Ningjian Wang Institute and Department of endocrinology and Metabolism Shanghai Ninth People’s HospitalShanghai JiaoTong University School of MedicineShanghai 200011China Department of endocrinology and Metabolism and Department of Guideline and Rapid Recommendation Cochrane China CenterMAGIC China CenterChinese Evidence-Based Medicine CenterWest China HospitalSichuan UniversityChengduSichuan 610041China Department of endocrinology Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese MedicineShanghai 201203China

Background:The serum vitamin D level varies widely by population,and studies have linked vitamin D levels with the risk of type 2 diabetes mellitus(T2DM).However,the relationship is inconsistent and the impact of vitamin D on T2DM among East Chinese adults is *** study aimed to investigate the association between serum 25-hydroxyvitamin D(25[OH]D)levels and the risk of T2DM and evaluated whether the association is modified by genetic ***:In the Survey on Prevalence in East China for Metabolic Diseases and Risk Factors(SPECT-China)cohort,1862 participants free of T2DM at baseline were included.A weighted genetic risk score was calculated with 28 variants associated with *** logistic models were used to examine the association of serum 25(OH)D and genetic risk with ***:After a 5-year follow-up,132 cases of T2DM were *** observed no significant association between quartiles of serum 25(OH)D and T2DM risk after multivariable adjustment(χ^(2)=0.571,P_(for trend)=0.426).Compared to those in the lowest quartile of 25(OH)D,the odds ratios(ORs)(95%confidence interval[CI])for participants with increased quartiles were 1.29(0.74-2.25),1.35(0.77-2.36),and 1.27(0.72-2.24),*** observed a positive association of glycated hemoglobin(HbA1c)with 25(OH)D at baseline(β=1.752,P=0.001)and after follow-up(β=1.385,P=0.003),and a negative association of ln conversion homeostasis model assessment(HOMA)-βwith 25(OH)D at baseline(β=-0.982,P=0.021).There was no significant interaction between 25(OH)D and diabetes genetic predisposition on the risk of T2DM(χ^(2)=2.710,P_(for interaction)=0.100).The lowest OR(95%CI)of T2DM was among participants with low genetic risk and the highest quartile of 25(OH)D(0.17[0.05-0.62]).Conclusion:Serum 25(OH)D may be irrelevant to the risk of incident T2DM among East Chinese adults regardless of genetic predisposition.

关键词： Vitamin D diabetes mellitus,Type 2 Genetic predisposition to disease Prospective cohort Glycated hemoglobin SPECT-China

High glucose promotes macrophage M1 polarization through miR-32/Mef2d/cAMP signaling pathway

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Genes & Diseases 2024年第2期11卷 539-541页

作者： Cong Chen Jingsong Cao Yan Gao Xiaoping Xie Zhibo Zhao Qing Yuan Yuqi He Xuyu Zu Jianghua Liu The First Affiliated Hospital Institute of Endocrinology and MetabolismCenter for Clinical Research in DiabetesHengyang Medical SchoolUniversity of South ChinaHengyangHunan 421001China The First Affiliated Hospital Department of Laboratory MedicineHengyang Medical SchoolUniversity of South ChinaHengyangHunan 421001China The First Affiliated Hospital Institute of OncologyHengyang Medical SchoolUniversity of South ChinaHengyangHunan 421001China

Chronic inflammation is a crucial inducerof diabetesvascular *** is that high glucose easily induces macrophage activation.1 Macrophages are the principal participants in innate immunity and exist in all human *** pathological vascular,infiltrated macrophages secrete inflammatory factors leading to an increase in plaque stability.?In macrophage polarization,autophagy plays an important *** of macrophage autophagy could induce macrophage polarization from the M1 phenotype to M2 phenotype and inhibit inflammatory reactions.3 Our previous research found that high glucose condition promotes miR-32 expression and macrophage M1 polarization,4 but the mechanism of miR-32 promoting macrophage M1 polarization is *** this study,we found that,under a high-glucose condition,miR-32/Mef2d/cAMP signaling promoted M1 macrophage polarization via inhibited *** results provide a theoretical and experimental basis for the prevention and treatment of T2D vascular inflammation.

关键词： macrophage miR prevention