Monogenic diabetes is caused by one or even more genetic variations,which may be uncommon yet have a significant influence and cause diabetes at an early age.Monogenic diabetes affects 1%to 5%of children,and early det...Monogenic diabetes is caused by one or even more genetic variations,which may be uncommon yet have a significant influence and cause diabetes at an early age.Monogenic diabetes affects 1%to 5%of children,and early detection and genetically focused treatment of neonatal diabetes and maturity-onset diabetes of the young can significantly improve long-term health and well-being.The etiology of monogenic diabetes in childhood is primarily attributed to genetic variations affecting the regulatory genes responsible for beta-cell activity.In rare instances,mutations leading to severe insulin resistance can also result in the development of diabetes.Individuals diagnosed with specific types of monogenic diabetes,which are commonly found,can transition from insulin therapy to sulfonylureas,provided they maintain consistent regulation of their blood glucose levels.Scientists have successfully devised materials and methodologies to distinguish individuals with type 1 or 2 diabetes from those more prone to monogenic diabetes.Genetic screening with appropriate findings and interpretations is essential to establish a prognosis and to guide the choice of therapies and management of these interrelated ailments.This review aims to design a comprehensive literature summarizing genetic insights into monogenetic diabetes in children and adolescents as well as summarizing their diagnosis and management.展开更多
Thyroid hormones have a specific effect on glucose-induced insulin secretion from the pancreas.We aimed to investigate the association between euthyroid hormones and islet betacell function in general population and n...Thyroid hormones have a specific effect on glucose-induced insulin secretion from the pancreas.We aimed to investigate the association between euthyroid hormones and islet betacell function in general population and non-treated type 2 diabetes mellitus(T2DM)patients.A total of 5089 euthyroid participants(including 4601 general population and 488 non-treated T2DM patients)were identified from a cross-sectional survey on the prevalence of metabolic diseases and risk factors in East China from February 2014 to June 2016.Anthropometric indices,biochemical parameters,and thyroid hormones were measured.Compared with general population,non-treated T2DM patients exhibited higher total thyroxine(TT4)and free thyroxine(FT4)levels but lower ratio of free triiodothyronine(T3):T4(P<0.01).HOMA-βhad prominently negative correlation with FT4 and positive relationship with free T3:T4 in both groups even after adjusting for age,body mass index(BMI)and smoking.When analyzed by quartiles of FT4 or free T3:T4,there were significantly decreased trend of HOMA-β going with the higher FT4 and lower free T3:T4 in both groups.Linear regression analysis showed that FT4 but not FT3 and free T3:T4 was negatively associated with HOMA-β no matter in general population or T2DM patients,which was independent of age,BMI,smoking,hypertension and lipid profiles.FT4 is independently and negatively associated with islet beta-cell function in euthyroid subjects.Thyroid hormone even in reference range could play an important role in the function of pancreatic islets.展开更多
目的本研究目的是构建一种能稳定表达绿色荧光蛋白(GFP)人胰高血糖素样肽-1受体(GLP1R)的胰岛细胞系,用来筛选GLP1R激动剂类药物。方法使用X-treme GENE HP DNA Transfection Reagent将pCMV6-AC-GLP1R-GFP质粒转染到Rin-m5F细胞,经G418...目的本研究目的是构建一种能稳定表达绿色荧光蛋白(GFP)人胰高血糖素样肽-1受体(GLP1R)的胰岛细胞系,用来筛选GLP1R激动剂类药物。方法使用X-treme GENE HP DNA Transfection Reagent将pCMV6-AC-GLP1R-GFP质粒转染到Rin-m5F细胞,经G418筛选单克隆Rinm5F/GLP1R-GFP细胞并扩大培养。结果该细胞能稳定传代,荧光显微镜下观察细胞绿色荧光分布均匀,Western blot验证GLP1R蛋白表达显著增加。在实验验证中,对照空白组中细胞绿色荧光分布均匀,阴性药物格列本脲(非GLP1R靶点药物)作用时细胞内无明显荧光斑点出现,阳性药物百泌达作用(GLP1R激动剂类药物)时细胞内出现显著荧光斑点。结论 GLP1R激动剂类药物筛选模型Rin-m5F/GLP1R-GFP成功构建。该模型能对混合物样品进行筛选,具有假阳性极低、筛选所需样本小、筛选样品量大、易标准化、筛选速度快、特异性强等优势,为GLP1R激动剂类药物的筛选奠定了基础。展开更多
Objective: To investigate the antioxidant, anti-a-glucosidase and pancreatic b-cell protective potential of Ensete superbum(E. superbum) seeds.Methods: A variety of in vitro assays including radical scavenging, reduci...Objective: To investigate the antioxidant, anti-a-glucosidase and pancreatic b-cell protective potential of Ensete superbum(E. superbum) seeds.Methods: A variety of in vitro assays including radical scavenging, reducing power potential, phenolic content determination, a-glucosidase assay and pancreatic b-cell(1.4E7 cells) viability were employed for assessing the effect of methanolic extract of E. superbum seeds.Results: The radical scavenging and reducing power effects comparable with the standard rutin were obtained while the enzyme inhibitory activity of the extract was 68-fold better than the standard antidiabetic drug, acarbose. The seed extract of E. superbum was packed-full of polyphenols with mean percentage gallic acid equivalent value of(38.2 ± 1.8)(n = 3). The protection of pancreatic cells from massive onslaught of hydrogen peroxide was far superior to that obtained for rutin.Conclusions: The reputed antidiabetic therapeutic uses of the seeds extract of E. superbum may be justified on the basis of inhibition of carbohydrate enzymes, antioxidant effects and pancreatic b-cell protection.展开更多
Monogenic diabetes is caused by one or even more genetic variations, which maybe uncommon yet have a significant influence and cause diabetes at an early age.Monogenic diabetes affects 1 to 5% of children, and early d...Monogenic diabetes is caused by one or even more genetic variations, which maybe uncommon yet have a significant influence and cause diabetes at an early age.Monogenic diabetes affects 1 to 5% of children, and early detection and geneticallyfocused treatment of neonatal diabetes and maturity-onset diabetes of theyoung can significantly improve long-term health and well-being. The etiology ofmonogenic diabetes in childhood is primarily attributed to genetic variationsaffecting the regulatory genes responsible for beta-cell activity. In rare instances,mutations leading to severe insulin resistance can also result in the developmentof diabetes. Individuals diagnosed with specific types of monogenic diabetes,which are commonly found, can transition from insulin therapy to sulfonylureas,provided they maintain consistent regulation of their blood glucose levels.Scientists have successfully devised materials and methodologies to distinguishindividuals with type 1 or 2 diabetes from those more prone to monogenicdiabetes. Genetic screening with appropriate findings and interpretations isessential to establish a prognosis and to guide the choice of therapies andmanagement of these interrelated ailments. This review aims to design a comprehensiveliterature summarizing genetic insights into monogenetic diabetes inchildren and adolescents as well as summarizing their diagnosis and management.展开更多
AIM: To analyze the associations of pancreatic fat with other fat depots and β-cell function in pediatric nonalcoholic fatty liver disease(NAFLD).METHODS: We examined 158 overweight/obese children and adolescents, 80...AIM: To analyze the associations of pancreatic fat with other fat depots and β-cell function in pediatric nonalcoholic fatty liver disease(NAFLD).METHODS: We examined 158 overweight/obese children and adolescents, 80 with NAFLD [hepatic fat fraction(HFF) ≥ 5%] and 78 without fatty liver. Visceral adipose tissue(VAT), pancreatic fat fraction(PFF) and HFF were determined by magnetic resonance imaging. Estimates of insulin sensitivity were calculated using the homeostasis model assessment of insulin resistance(HOMA-IR), defined by fasting insulin and fasting glucose and whole-body insulin sensitivity index(WBISI), based on mean values of insulin and glucose obtained from oral glucose tolerance test and the corresponding fasting values. Patients were considered to have prediabetes if they had either:(1) impaired fasting glucose, defined as a fasting glucose level ≥ 100 mg/d L to < 126 mg/d L;(2) impaired glucose tolerance, defined as a 2 h glucose concentration between ≥ 140 mg/d L and < 200 mg/d L; or(3) hemoglobin A1 c value of ≥ 5.7% to < 6.5%.RESULTS: PFF was significantly higher in NAFLD patients compared with subjects without liver involvement. PFF was significantly associated with HFF and VAT, as well as fasting insulin, C peptide, HOMA-IR, and WBISI. The association between PFF and HFF was no longer significant after adjusting for age, gender, Tanner stage, body mass index(BMI)-SD score, and VAT. In multiple regression analysis withWBISI or HOMA-IR as the dependent variables, against the covariates age, gender, Tanner stage, BMI-SD score, VAT, PFF, and HFF, the only variable significantly associated with WBISI(standardized coefficient B,-0.398; P = 0.001) as well as HOMA-IR(0.353; P = 0.003) was HFF. Children with prediabetes had higher PFF and HFF than those without. PFF and HFF were significantly associated with prediabetes after adjustment for clinical variables. When all fat depots where included in the same model, only HFF remained significantly associated with prediabetes(OR = 3.38; 95%CI: 1.10-10.4; P = 0.034).CONCLUSION: In overweight/obese children with NAFLD, pancreatic fat is increased compared with those without liver involvement. However, only liver fat is independently related to prediabetes.展开更多
Diabetes mellitus(diabetes) is a devastating disease that affects millions of people globally and causes a myriad of complications that lead to both patient morbidity and mortality. Currently available therapies, incl...Diabetes mellitus(diabetes) is a devastating disease that affects millions of people globally and causes a myriad of complications that lead to both patient morbidity and mortality. Currently available therapies, including insulin injection and beta cell replacement through either pancreas or pancreatic islet transplantation, are limited by the availability of organs. Stem cells provide an alternative treatment option for beta cell replacement through selective differentiation of stem cells into cells that recognize glucose and produce and secrete insulin. Embryonic stem cells, albeit pluripotent, face a number of challenges, including ethical and political concerns and potential teratoma formation. Adipose tissue represents an alternative source of multipotent mesenchymal stem cells, which can be obtained using a relatively simple, non-invasive, and inexpensive method. Similarly to other adult mesenchymal stem cells, adipose-derived stem cells(ADSCs) are capable of differentiating into insulin-producing cells. They are also capable of vasculogenesis and angiogenesis, which facilitate engraftment of donor pancreatic islets when co-transplanted. Additionally, anti-inflammatory and immunomodulatory effects of ADSCs can protect donorislets during the early phase of transplantation and subsequently improve engraftment of donor islets into the recipient organ. Although ADSC-therapy is still in its infancy, the potential benefits of ADSCs are far reaching.展开更多
Chronic pancreatitis(CP)is characterized by progressive inflammation and fibrosis of the pancreas that eventually leads to pancreatic exocrine and endocrine insufficiency.Diabetes in the background of CP is very diffi...Chronic pancreatitis(CP)is characterized by progressive inflammation and fibrosis of the pancreas that eventually leads to pancreatic exocrine and endocrine insufficiency.Diabetes in the background of CP is very difficult to manage due to high glycemic variability and concomitant malabsorption.Progressive beta cell loss leading to insulin deficiency is the cardinal mechanism underlying diabetes development in CP.Alpha cell dysfunction leading to deranged glucagon secretion has been described in different studies using a variety of stimuli in CP.However,the emerging evidence is varied probably because of dependence on the study procedure,the study population as well as on the stage of the disease.The mechanism behind islet cell dysfunction in CP is multifactorial.The intra-islet alpha and beta cell regulation of each other is often lost.Moreover,secretion of the incretin hormones such as glucagon like peptide-1 and glucose-dependent insulinotropic polypeptide is dysregulated.This significantly contributes to islet cell disturbances.Persistent and progressive inflammation with changes in the function of other cells such as islet delta cells and pancreatic polypeptide cells are also implicated in CP.In addition,the different surgical procedures performed in patients with CP and antihyperglycemic drugs used to treat diabetes associated with CP also affect islet cell function.Hence,different factors such as chronic inflammation,dysregulated incretin axis,surgical interventions and anti-diabetic drugs all affect islet cell function in patients with CP.Newer therapies targeting alpha cell function and beta cell regeneration would be useful in the management of pancreatic diabetes in the near future.展开更多
基金supported by the National High-Tech R&D Program of China(“863”Program)(2009AA22704)the National Natural Science Foundation of China(30873089,81173129)+3 种基金the Program for Changjiang Scholars and Innovative Research Team in University(IRT0946)the Open Foundation of Innovative Platform in University of Hunan Province of China(10K078)the Science and Technology Plan Key Grant of Hunan Province of China(2009TP40682)the Fundamental Research Funds for the Central Universities(201023100001)
文摘目的:在细胞水平研究烟酰胺单核苷酸(nicotinamide mononucleotide,NMN)对胰岛素分泌的调节作用及其对与胰岛素分泌相关的重要转录因子胰十二指肠同源盒基因(pancreatic and duodenalhomeobox-1,PDX-1)和分叉头框家族转录因子1(forkhead box-containing protein O-1,FoxO1)基因表达的影响。方法:采用大鼠胰岛素ELISA试剂盒检测RIN-m5f细胞胰岛素分泌水平。用Real-time PCR检测RIN-m5f细胞PDX-1和FoxO1的mRNA表达水平。用Western印迹检测RIN-m5f细胞PDX-1蛋白表达水平。结果:用瑞格列奈10 nmol/L+NMN 100μmol/L处理RIN-m5f细胞48 h,与空白对照及DMSO对照组相比,胰岛素分泌量均显著增高(P<0.05);与NMN 50μmol/L组比较,胰岛素分泌量的增高也有统计学意义(P<0.05)。10,50和100μmol/L的NMN作用RIN-m5f细胞36 h,PDX-1的mRNA表达量均上调(依次为P<0.05,P<0.01,P<0.001)。100μmol/L剂量组与10μmol/L和50μmol/L剂量组比较差异也有统计学意义(P<0.001)。50,100和200μmol/L的NMN作用RIN-m5f细胞36或48 h,PDX-1的蛋白表达量与对照组比较差异无统计学意义(P>0.05)。结论:NMN可以调控RIN-m5f细胞中胰岛素的分泌及PDX-1的mRNA表达水平。
文摘Monogenic diabetes is caused by one or even more genetic variations,which may be uncommon yet have a significant influence and cause diabetes at an early age.Monogenic diabetes affects 1%to 5%of children,and early detection and genetically focused treatment of neonatal diabetes and maturity-onset diabetes of the young can significantly improve long-term health and well-being.The etiology of monogenic diabetes in childhood is primarily attributed to genetic variations affecting the regulatory genes responsible for beta-cell activity.In rare instances,mutations leading to severe insulin resistance can also result in the development of diabetes.Individuals diagnosed with specific types of monogenic diabetes,which are commonly found,can transition from insulin therapy to sulfonylureas,provided they maintain consistent regulation of their blood glucose levels.Scientists have successfully devised materials and methodologies to distinguish individuals with type 1 or 2 diabetes from those more prone to monogenic diabetes.Genetic screening with appropriate findings and interpretations is essential to establish a prognosis and to guide the choice of therapies and management of these interrelated ailments.This review aims to design a comprehensive literature summarizing genetic insights into monogenetic diabetes in children and adolescents as well as summarizing their diagnosis and management.
基金grants from the National Natural Science Foundation of China(No.81270885,No.81570726 and No.81600609)Shanghai Jiao Tong University School of Medicine(2014)+4 种基金the Ministry of Science and Technology in China(No.2012CB524906)the Science and Technology Commission of Shanghai Municipality(No.14495810700 and No.16410723200)Three-year Action Plan for Public Health System Construction in Shanghai by Shanghai Municipal Commission of Health and Family Planning(2015-2017)Clinical Potential Subject Construction of Shanghai Jiao Tong University School of Medicine(2014),Shanghai Municipal Health Bureau of China(No.20124262)Seed Founding of Shanghai Ninth People's Hospital,Shanghai Jiao Tong University School of Medicine(No.JYZZ032).
文摘Thyroid hormones have a specific effect on glucose-induced insulin secretion from the pancreas.We aimed to investigate the association between euthyroid hormones and islet betacell function in general population and non-treated type 2 diabetes mellitus(T2DM)patients.A total of 5089 euthyroid participants(including 4601 general population and 488 non-treated T2DM patients)were identified from a cross-sectional survey on the prevalence of metabolic diseases and risk factors in East China from February 2014 to June 2016.Anthropometric indices,biochemical parameters,and thyroid hormones were measured.Compared with general population,non-treated T2DM patients exhibited higher total thyroxine(TT4)and free thyroxine(FT4)levels but lower ratio of free triiodothyronine(T3):T4(P<0.01).HOMA-βhad prominently negative correlation with FT4 and positive relationship with free T3:T4 in both groups even after adjusting for age,body mass index(BMI)and smoking.When analyzed by quartiles of FT4 or free T3:T4,there were significantly decreased trend of HOMA-β going with the higher FT4 and lower free T3:T4 in both groups.Linear regression analysis showed that FT4 but not FT3 and free T3:T4 was negatively associated with HOMA-β no matter in general population or T2DM patients,which was independent of age,BMI,smoking,hypertension and lipid profiles.FT4 is independently and negatively associated with islet beta-cell function in euthyroid subjects.Thyroid hormone even in reference range could play an important role in the function of pancreatic islets.
文摘目的本研究目的是构建一种能稳定表达绿色荧光蛋白(GFP)人胰高血糖素样肽-1受体(GLP1R)的胰岛细胞系,用来筛选GLP1R激动剂类药物。方法使用X-treme GENE HP DNA Transfection Reagent将pCMV6-AC-GLP1R-GFP质粒转染到Rin-m5F细胞,经G418筛选单克隆Rinm5F/GLP1R-GFP细胞并扩大培养。结果该细胞能稳定传代,荧光显微镜下观察细胞绿色荧光分布均匀,Western blot验证GLP1R蛋白表达显著增加。在实验验证中,对照空白组中细胞绿色荧光分布均匀,阴性药物格列本脲(非GLP1R靶点药物)作用时细胞内无明显荧光斑点出现,阳性药物百泌达作用(GLP1R激动剂类药物)时细胞内出现显著荧光斑点。结论 GLP1R激动剂类药物筛选模型Rin-m5F/GLP1R-GFP成功构建。该模型能对混合物样品进行筛选,具有假阳性极低、筛选所需样本小、筛选样品量大、易标准化、筛选速度快、特异性强等优势,为GLP1R激动剂类药物的筛选奠定了基础。
基金Supported by a local grant from the University of Greenwich(GRE Mini-Proof-of-Concept No.HEIF-Po C-SCI-02/13)
文摘Objective: To investigate the antioxidant, anti-a-glucosidase and pancreatic b-cell protective potential of Ensete superbum(E. superbum) seeds.Methods: A variety of in vitro assays including radical scavenging, reducing power potential, phenolic content determination, a-glucosidase assay and pancreatic b-cell(1.4E7 cells) viability were employed for assessing the effect of methanolic extract of E. superbum seeds.Results: The radical scavenging and reducing power effects comparable with the standard rutin were obtained while the enzyme inhibitory activity of the extract was 68-fold better than the standard antidiabetic drug, acarbose. The seed extract of E. superbum was packed-full of polyphenols with mean percentage gallic acid equivalent value of(38.2 ± 1.8)(n = 3). The protection of pancreatic cells from massive onslaught of hydrogen peroxide was far superior to that obtained for rutin.Conclusions: The reputed antidiabetic therapeutic uses of the seeds extract of E. superbum may be justified on the basis of inhibition of carbohydrate enzymes, antioxidant effects and pancreatic b-cell protection.
文摘Monogenic diabetes is caused by one or even more genetic variations, which maybe uncommon yet have a significant influence and cause diabetes at an early age.Monogenic diabetes affects 1 to 5% of children, and early detection and geneticallyfocused treatment of neonatal diabetes and maturity-onset diabetes of theyoung can significantly improve long-term health and well-being. The etiology ofmonogenic diabetes in childhood is primarily attributed to genetic variationsaffecting the regulatory genes responsible for beta-cell activity. In rare instances,mutations leading to severe insulin resistance can also result in the developmentof diabetes. Individuals diagnosed with specific types of monogenic diabetes,which are commonly found, can transition from insulin therapy to sulfonylureas,provided they maintain consistent regulation of their blood glucose levels.Scientists have successfully devised materials and methodologies to distinguishindividuals with type 1 or 2 diabetes from those more prone to monogenicdiabetes. Genetic screening with appropriate findings and interpretations isessential to establish a prognosis and to guide the choice of therapies andmanagement of these interrelated ailments. This review aims to design a comprehensiveliterature summarizing genetic insights into monogenetic diabetes inchildren and adolescents as well as summarizing their diagnosis and management.
基金Supported by Sapienza University of Rome(Progetti di Ricerca Universitaria 2011-2012)
文摘AIM: To analyze the associations of pancreatic fat with other fat depots and β-cell function in pediatric nonalcoholic fatty liver disease(NAFLD).METHODS: We examined 158 overweight/obese children and adolescents, 80 with NAFLD [hepatic fat fraction(HFF) ≥ 5%] and 78 without fatty liver. Visceral adipose tissue(VAT), pancreatic fat fraction(PFF) and HFF were determined by magnetic resonance imaging. Estimates of insulin sensitivity were calculated using the homeostasis model assessment of insulin resistance(HOMA-IR), defined by fasting insulin and fasting glucose and whole-body insulin sensitivity index(WBISI), based on mean values of insulin and glucose obtained from oral glucose tolerance test and the corresponding fasting values. Patients were considered to have prediabetes if they had either:(1) impaired fasting glucose, defined as a fasting glucose level ≥ 100 mg/d L to < 126 mg/d L;(2) impaired glucose tolerance, defined as a 2 h glucose concentration between ≥ 140 mg/d L and < 200 mg/d L; or(3) hemoglobin A1 c value of ≥ 5.7% to < 6.5%.RESULTS: PFF was significantly higher in NAFLD patients compared with subjects without liver involvement. PFF was significantly associated with HFF and VAT, as well as fasting insulin, C peptide, HOMA-IR, and WBISI. The association between PFF and HFF was no longer significant after adjusting for age, gender, Tanner stage, body mass index(BMI)-SD score, and VAT. In multiple regression analysis withWBISI or HOMA-IR as the dependent variables, against the covariates age, gender, Tanner stage, BMI-SD score, VAT, PFF, and HFF, the only variable significantly associated with WBISI(standardized coefficient B,-0.398; P = 0.001) as well as HOMA-IR(0.353; P = 0.003) was HFF. Children with prediabetes had higher PFF and HFF than those without. PFF and HFF were significantly associated with prediabetes after adjustment for clinical variables. When all fat depots where included in the same model, only HFF remained significantly associated with prediabetes(OR = 3.38; 95%CI: 1.10-10.4; P = 0.034).CONCLUSION: In overweight/obese children with NAFLD, pancreatic fat is increased compared with those without liver involvement. However, only liver fat is independently related to prediabetes.
文摘Diabetes mellitus(diabetes) is a devastating disease that affects millions of people globally and causes a myriad of complications that lead to both patient morbidity and mortality. Currently available therapies, including insulin injection and beta cell replacement through either pancreas or pancreatic islet transplantation, are limited by the availability of organs. Stem cells provide an alternative treatment option for beta cell replacement through selective differentiation of stem cells into cells that recognize glucose and produce and secrete insulin. Embryonic stem cells, albeit pluripotent, face a number of challenges, including ethical and political concerns and potential teratoma formation. Adipose tissue represents an alternative source of multipotent mesenchymal stem cells, which can be obtained using a relatively simple, non-invasive, and inexpensive method. Similarly to other adult mesenchymal stem cells, adipose-derived stem cells(ADSCs) are capable of differentiating into insulin-producing cells. They are also capable of vasculogenesis and angiogenesis, which facilitate engraftment of donor pancreatic islets when co-transplanted. Additionally, anti-inflammatory and immunomodulatory effects of ADSCs can protect donorislets during the early phase of transplantation and subsequently improve engraftment of donor islets into the recipient organ. Although ADSC-therapy is still in its infancy, the potential benefits of ADSCs are far reaching.
文摘Chronic pancreatitis(CP)is characterized by progressive inflammation and fibrosis of the pancreas that eventually leads to pancreatic exocrine and endocrine insufficiency.Diabetes in the background of CP is very difficult to manage due to high glycemic variability and concomitant malabsorption.Progressive beta cell loss leading to insulin deficiency is the cardinal mechanism underlying diabetes development in CP.Alpha cell dysfunction leading to deranged glucagon secretion has been described in different studies using a variety of stimuli in CP.However,the emerging evidence is varied probably because of dependence on the study procedure,the study population as well as on the stage of the disease.The mechanism behind islet cell dysfunction in CP is multifactorial.The intra-islet alpha and beta cell regulation of each other is often lost.Moreover,secretion of the incretin hormones such as glucagon like peptide-1 and glucose-dependent insulinotropic polypeptide is dysregulated.This significantly contributes to islet cell disturbances.Persistent and progressive inflammation with changes in the function of other cells such as islet delta cells and pancreatic polypeptide cells are also implicated in CP.In addition,the different surgical procedures performed in patients with CP and antihyperglycemic drugs used to treat diabetes associated with CP also affect islet cell function.Hence,different factors such as chronic inflammation,dysregulated incretin axis,surgical interventions and anti-diabetic drugs all affect islet cell function in patients with CP.Newer therapies targeting alpha cell function and beta cell regeneration would be useful in the management of pancreatic diabetes in the near future.