Adaptation of small intestinal membrane transport processes during diabetes mellitus in rats

1990 ◽  
Vol 68 (5) ◽  
pp. 630-635 ◽  
Author(s):  
Richard N. Fedorak
Keyword(s):  
Diabetes Mellitus ◽  
Specific Binding ◽  
Intestinal Transport ◽  
Transport Processes ◽  
Diabetic Rat ◽  
Transport Capacity ◽  
Disease States ◽  
Glucose Binding ◽  
Intestinal Membrane ◽  
Intestinal Hypertrophy

Intestinal amino acid and glucose transport is increased in various disease states and physiological circumstances. This enhancement is generally due to an increase in transport capacity (Vmax) without a change in carrier affinity (KD). Furthermore, the increase in transport capacity is too large to be attributed, in most cases, to simple intestinal hypertrophy. In the streptozotocin-treated chronically diabetic rat model, specific binding indicated an enhanced total number of glucose carriers in the small intestine compared with controls. Furthermore, autoradiography reveals that specific phlorizin (i.e., glucose) binding extends into the intervillous region of the intestine, while in age-matched controls binding is confined to the villous tip. These studies suggest that during experimental diabetes mellitus in rats, enhanced intestinal nutrient absorption may occur as a consequence of recruitment of carriers into previously nontransporting enterocytes. This review looks at ways in which this alteration may be influenced, and examines the expression of various isoforms of Na–K ATPase during streptozocin-induced diabetes mellitus.Key words: intestinal transport, glucose, sodium–potassium ATPase, adaptation.

scholarly journals The acute effects of different spironolactone doses on cardiac function in streptozotocin-induced diabetic rats

2017 ◽  
Vol 95 (11) ◽  
pp. 1343-1350
Author(s):  
Aleksandra Vranic ◽  
Stefan Simovic ◽  
Petar Ristic ◽  
Tamara Nikolic ◽  
Isidora Stojic ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Systolic Function ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Albino Rats ◽  
Acute Administration ◽  
Rat Hearts ◽  
Patients With Diabetes ◽  
Streptozotocin Induced Diabetes ◽  
Wistar Albino Rats

Currently, cardiovascular diseases are the leading cause of global mortality, while diabetes mellitus remains an important cause of cardiovascular morbidity. A recent study showed that patients with diabetes mellitus treated with mineralocorticoid receptor antagonists have improved coronary microvascular function, leading to improved diastolic dysfunction. In this study, we evaluated the influence of acute administration of spironolactone on myocardial function in rats with streptozotocin-induced diabetes mellitus, with special emphasis on cardiodynamic parameters in diabetic rat hearts. The present study was carried out on 40 adult male Wistar albino rats (8 weeks old). Rats were randomly divided into 4 groups (10 animals per group): healthy rats treated with 0.1 μmol/L of spironolactone, diabetic rats treated with 0.1 μmol/L of spironolactone, healthy rats treated with 3 μmol/L of spironolactone, and diabetic rats treated with 3 μmol/L of spironolactone. Different, dose-dependent, acute responses of spironolactone treatment on isolated, working diabetic and healthy rat heart were observed in our study. In healthy rats, better systolic function was achieved with higher spironolactone dose, while in diabetic rats, similar effects of low and high spironolactone dose were observed.

scholarly journals Advances in high-density lipoprotein physiology: surprises, overturns, and promises

2016 ◽  
Vol 310 (1) ◽  
pp. E1-E14 ◽  
Author(s):  
Caterina Constantinou ◽  
Eleni A. Karavia ◽  
Eva Xepapadaki ◽  
Peristera-Ioanna Petropoulou ◽  
Eugenia Papakosta ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Fatty Liver Disease ◽  
Metabolic Disorders ◽  
Density Lipoprotein ◽  
Pulmonary Diseases ◽  
Brain Disorders ◽  
Nonalcoholic Fatty Liver ◽  
Disease States ◽  
And Function

Emerging evidence strongly supports that changes in the HDL metabolic pathway, which result in changes in HDL proteome and function, appear to have a causative impact on a number of metabolic disorders. Here, we provide a critical review of the most recent and novel findings correlating HDL properties and functionality with various pathophysiological processes and disease states, such as obesity, type 2 diabetes mellitus, nonalcoholic fatty liver disease, inflammation and sepsis, bone and obstructive pulmonary diseases, and brain disorders.

scholarly journals FTIR Spectroscopic Investigation of Mineral Structure of Streptozotocin Induced Diabetic Rat Femur and Tibia

2003 ◽  
Vol 17 (2-3) ◽  
pp. 627-633 ◽  
Author(s):  
Handan Boyar ◽  
Belma Turan ◽  
Feride Severcan
Keyword(s):  
Diabetes Mellitus ◽  
Insulin Dependent Diabetes Mellitus ◽  
Insulin Dependent Diabetes ◽  
Dependent Diabetes Mellitus ◽  
Diabetic Rat ◽  
Carbonate Content ◽  
Diabetic Patients ◽  
Type I ◽  
Mineral Density ◽  
Insulin Dependent

Diabetes mellitus (DM) can be accepted as a heterogenous multi organ disorder that can affect various systems of the human body. Disorders include retinopathy, neuropathy, cardiomyopathy, musculoskeletal abnormalities such as diminished bone formation and bone healing retardation. Low bone mineral density is often mentioned as a complication for patients with insulin dependent diabetes mellitus (type I DM). Streptozotocin (STZ) induced diabetic rats are good models for investigation of the complications of insulin dependent diabetes. In the present study, the effects of STZ induced diabetes on the mineral environment of rat bones namely femur and tibia were studied by Fourier transform infrared (FTIR) spectroscopic technique. The results revealed that mineral crystal sizes increased and carbonate content decreased for diabetic femur and tibia. These changes can be due to the formation of osteoporosis which is widely seen in diabetic patients.

scholarly journals Effect of diabetes mellitus on cementum periodontal interface in Streptozotocin-induced diabetic rat model

2018 ◽  
Vol 4 (2) ◽  
pp. 181-188 ◽  
Author(s):  
Medhat Ahmed El-Zainy ◽  
Ahmed Mahmoud Halawa ◽  
Fatma Adel Saad
Keyword(s):  
Diabetes Mellitus ◽  
Rat Model ◽  
Diabetic Rat ◽  
Diabetic Rat Model

scholarly journals Gestational microbiome: metabolic perturbations and developmental programming

Reproduction ◽  
2021 ◽  
Vol 162 (6) ◽  
pp. R85-R98
Author(s):  
Sophia Han ◽  
Charlotte C Ellberg ◽  
Isoken N Olomu ◽  
Arpita K Vyas
Keyword(s):  
Diabetes Mellitus ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Gestational Diabetes ◽  
Human Microbiome ◽  
Disease States ◽  
Microbial Dysbiosis ◽  
Obesity And Diabetes ◽  
Growing Body

A growing body of research suggests that alterations to the human microbiome are associated with disease states, including obesity and diabetes. During pregnancy, these disease states are associated with maternal microbial dysbiosis. This review discusses the current literature regarding the typical maternal and offspring microbiome as well as alterations to the microbiome in the context of obesity, type 2 diabetes mellitus, and gestational diabetes mellitus. Furthermore, this review outlines the proposed mechanisms linking associations between the maternal microbiome in the aforementioned disease states and offspring microbiome. Additionally, this review highlights associations between alterations in offspring microbiome and postnatal health outcomes.

scholarly journals Diabetes mellitus increased integrins gene expression in rat endometrium at the time of embryo implantation

2019 ◽  
Author(s):  
Abbas Bakhteyari ◽  
Yasaman Zarrin ◽  
Parvaneh Nikpour ◽  
Zeinab Sadat Hosseiny ◽  
Zeinab Sadat Hosseiny ◽  
...  
Keyword(s):  
Gene Expression ◽  
Diabetes Mellitus ◽  
Group Treatment ◽  
Embryo Implantation ◽  
Treated Group ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Control Group ◽  
Genes Expression ◽  
Normal Menstrual Cycle

Background: Diabetes mellitus deeply changes the genes expression of integrin (Itg) subunits in several cells and tissues such as monocytes, arterial endothelium, kidney glomerular cells, retina. Furthermore, hyperglycemia could impress and reduce the rate of successful assisted as well as non-assisted pregnancy. Endometrium undergoes thorough changes in normal menstrual cycle and the question is: What happens in the endometrium under diabetic condition? Objective: The aim of the current study was to investigate the endometrial gene expression of α3, α4, αv, Itg β1 and β3 subunits in diabetic rat models at the time of embryo implantation. Materials and Methods: Twenty-eight rats were randomly divided into 4 groups: control group, diabetic group, pioglitazone-treated group, and metformin-treated group. Real-time PCR was performed to determine changes in the expression of Itg α3, α4, αv, β1, and β3 genes in rat’s endometrium. Results: The expression of all Itg subunits increased significantly in diabetic rats’ endometrium compared with control group. Treatment with pioglitazone significantly reduced the level of Itg subunits gene expression compared with diabetic rats. While metformin had a different effect on α3 and α4 and elevated these two subunits gene expression. Conclusion: Diabetes mellitus significantly increased the expression of studied Itg subunits, therefore untreated diabetes could be potentially assumed as one of the preliminary elements in embryo implantation failure.

scholarly journals Enhancement of Liver Toxicity on Diabetes Mellitus by a Universal Chemical Pollutant (Acrylonitrile) in Rats

2019 ◽  
Vol 26 (2) ◽  
pp. 9-17
Author(s):  
Sameer E. Alharthi
Keyword(s):  
Oxidative Stress ◽  
Diabetes Mellitus ◽  
Aqueous Solution ◽  
Liver Toxicity ◽  
Elevated Serum ◽  
Diabetic Rat ◽  
Control Group ◽  
Distilled Water ◽  
Serum Aminotransferase ◽  
Cyp2e1 Activity

The present study was designed to investigate potential liver damage due to acrylonitrile in Streptozotocin induced diabetes in rats. Twenty-four rats were divided into 4 treatment groups. Nondiabetic control rat receiving distilled water, non-diabetic rat receiving acrylonitrile aqueous solution (10 mg/kg/day), diabetic control rat receiving distilled water and diabetic rat receiving acrylonitrile aqueous solution. All groups received the treatment for 4 weeks. The animals were assessed for hepatoxicity markers in serum, oxidative stress markers, CYP2E1 activity and cyanide formation in tissues. Acrylonitrile significantly elevated serum aminotransferase, alanine aminotransferase, total bilirubin levels, triglycerides and total cholesterol in diabetic groups as compared to normal control group. Antioxidant markers like glutathione showed significant decline while a significant increase in malondialdehyde, superoxide dismutase and catalase in diabetic rats treated with acrylonitrile. CYP2E1 activity was observed in acrylonitrile – exposed nondiabetic and diabetic groups as compared to control. Cyanide formation was raised in both the nondiabetic and diabetic groups as compared to control group. Acrylonitriles can produce acute hepatic injury, induction of diabetes mellitus type II, and accomplish the CYP2E1 enzyme which sequentially leads to generation of oxidative stress and its metabolic product–cyanide that may potentiate the oxidative stress posing more deleterious effect.

scholarly journals Exogenous Angiotensin I Metabolism in Aorta Isolated from Streptozotocin Treated Diabetic Rats

2016 ◽  
Vol 2016 ◽  
pp. 1-10
Author(s):  
P. P. Wołkow ◽  
B. Bujak-Giżycka ◽  
J. Jawień ◽  
R. Olszanecki ◽  
J. Madej ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Vascular Complications ◽  
Rat Aorta ◽  
Diabetic Rats ◽  
Diabetic Rat ◽  
Classical Pathway ◽  
Ang Ii ◽  
Liquid Chromatography Mass Spectrometry ◽  
Angiotensin I ◽  
Ang Iv

Purpose. Products of angiotensin (ANG) I metabolism may predispose to vascular complications of diabetes mellitus. Methods. Diabetes was induced with streptozotocin (75 mg/kg i.p.). Rat aorta fragments, isolated 4 weeks later, were pretreated with perindoprilat (3 μM), thiorphan (3 μM), or vehicle and incubated for 15 minutes with ANG I (1 μM). Products of ANG I metabolism through classical (ANG II, ANG III, and ANG IV) and alternative (ANG (1–9), ANG (1–7), and ANG (1–5)) pathways were measured in the buffer, using liquid chromatography-mass spectrometry. Results. Incubation with ANG I resulted in higher concentration of ANG II (P = 0.02, vehicle pretreatment) and lower of ANG (1–9) (P=0.048, perindoprilat pretreatment) in diabetes. Preference for the classical pathway is suggested by higher ANG III/ANG (1–7) ratios in vehicle (P=0.03), perindoprilat (P=0.02), and thiorphan pretreated (P=0.02) diabetic rat. Within the classical pathway, ratios of ANG IV/ANG II (P=0.01) and of ANG IV/ANG III (P=0.049), but not of ANG III/ANG II are lower in diabetes. Conclusions. Diabetes in rats led to preference toward deleterious (ANG II, ANG III) over protective (ANG IV, ANG (1–9), and ANG (1–7)) ANG I metabolites.

Antidiabetic and Antidyslipidemic activity of Secang (Caesalpinia sappan L.) Wood extract on Diabetic Rat

2021 ◽  
pp. 2800-2806
Author(s):  
Diana Holidah ◽  
Ika Puspita Dewi ◽  
Fransiska Maria Christianty ◽  
Noer Sidqi Muhammadiy ◽  
Nur Huda
Keyword(s):  
Diabetes Mellitus ◽  
Cardiovascular Disease ◽  
Blood Glucose ◽  
Diabetic Rat ◽  
Level Increase ◽  
Patients With Diabetes ◽  
Potential Activity ◽  
Wood Extract ◽  
Antidyslipidemic Activity

Diabetes mellitus is a syndrome due to disorders of carbohydrate, lipid, and protein metabolism due to decreased insulin secretion or reduced insulin sensitivity. The number of people with diabetes mellitus is increasing every year. However, diabetes mellitus is a major cause of cardiovascular disease, blindness, kidney failure, and amputation due to gangrene. Patients with diabetes mellitus have a possibility of 2-3 times higher cardiovascular disease than non diabetic. Sappan wood containing brazilin that have antioxidant activity and had a potential activity to lower the incidence of type 2 diabetes mellitus. Objective of this research was to determine the activity of secang wood extract as an antidiabetic and antidyslipidemic on diabetic rat. Diabetic rat induced by alloxan and given extract once daily for 14 days. At 15th day, blood glucose level, lipid profile was determine, pancreas was harvested and processed to hystopathological examination. Secang wood extract decreased blood glucose, cholesterol, triglyceride, and LDL level, increase HDL level, and repair the histology of pancreas on diabetic rat after 14 days treatment. Based on the result, secang wood extract had antidiabetic and antidyslipidemic activity on diabetic rat.

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