scholarly journals Effect of N-Acetylcysteine on Dyslipidemia and Carbohydrate Metabolism in STZ-Induced Diabetic Rats

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Anderson Kiyoshi Kaga ◽  
Pedro Octavio Barbanera ◽  
Nágilla Orleanne Lima do Carmo ◽  
Lucas Rodolfo de Oliveira Rosa ◽  
Ana Angélica Henrique Fernandes

Background. Type 1 diabetes mellitus (T1DM) is characterized by insulin-deficient production leading to hyperglycemia, which is associated with diabetic complications such as cardiovascular diseases. Antioxidants have been proving a good alternative to diabetic complications, with N-acetylcysteine (NAC) having antioxidant characteristics. The aim of this study was to assess the effect of NAC on the lipid profile and the atherogenic index (AI) in streptozotocin- (STZ-) induced diabetic rats.Method. 32 male Wistar rats (60 days of age) weighting ±250 g were randomly distributed into four groups (n=8): CTRL: control rats; CTRL+NAC: control rats treated with NAC; DM: diabetic rats; DM+NAC: diabetic rats treated with NAC. T1DM was induced using STZ (60 mg/kg, ip; single dose), and NAC (25 mg/kg/day) was administrated by gavage, for 37 days. The animals received chow and waterad libitum. After the experimental period, blood and cardiac tissue samples were collected to analyze energetic metabolism, lipid profile, and AI.Results. NAC decreased (p<0.01) glycemia, energy intake, carbohydrate, and protein consumption in diabetic rats (DM+NAC), when compared with DM, while the alimentary efficiency was improved (p<0.01) in treated diabetic rats (DM+NAC). Diabetic rats treated with NAC decreased (p<0.01) lipid profile and AI in diabetic rats (DM+NAC) when compared to DM.Conclusion. NAC improves lipid profile and decreases AI in STZ-induced diabetic rats.

2028 ◽  
Vol 7 (3) ◽  
pp. 253-256
Author(s):  
Atanu FO ◽  
◽  
Momoh S ◽  
Ugwu CE ◽  
Ameh O ◽  
...  

This work investigates the ability of Morinda lucida and co-administration of Morinda lucida/metformin in the control of biochemical and histological changes in alloxan-induced diabetic rats. Alloxan diabetic rats were treated with 200 mg/Kg body weight of Morinda lucida leaves extract, 1 mg/Kg BW of metformin or a combination of the two treatments for 28 days. Results of the studies revealed that Morinda lucida leaves extract significantly improved lipid profile and kidney function in diabetic rats. These positive outcomes were enhanced by combined treated with Morinda lucida leaves extract and metformin. Furthermore, the calculated atherogenic index of treated animals were close to those of normal rats as opposed to diabetic rats. Similarly, histological studies showed that Morinda lucida leaves extract and metformin administered together or singly, ameliorated damages in pancreas and kidneys from alloxan diabetic rats. It can therefore be inferred that combined treatment with Morinda lucida leaves extract and merformin could improve the potency of Morinda lucida leaves used in the management of diabetic complications


Antioxidants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 335
Author(s):  
Estefanía Bravo-Sánchez ◽  
Donovan Peña-Montes ◽  
Sarai Sánchez-Duarte ◽  
Alfredo Saavedra-Molina ◽  
Elizabeth Sánchez-Duarte ◽  
...  

Diabetes mellitus (DM) constitutes one of the public health problems today. It is characterized by hyperglycemia through a defect in the β-cells function and/or decreased insulin sensitivity. Apocynin has been tasted acting directly as an NADPH oxidase inhibitor and reactive oxygen species (ROS) scavenger, exhibiting beneficial effects against diabetic complications. Hence, the present study’s goal was to dissect the possible mechanisms by which apocynin could mediate its cardioprotective effect against DM-induced oxidative stress. Male Wistar rats were assigned into 4 groups: Control (C), control + apocynin (C+A), diabetes (D), diabetes + apocynin (D+A). DM was induced with streptozotocin. Apocynin treatment (3 mg/kg/day) was applied for 5 weeks. Treatment significantly decreased blood glucose levels and insulin resistance in diabetic rats. In cardiac tissue, ROS levels were higher, and catalase enzyme activity was reduced in the D group compared to the C group; the apocynin treatment significantly attenuated these responses. In heart mitochondria, Complexes I and II of the electron transport chain (ETC) were significantly enhanced in the D+A group. Total glutathione, the level of reduced glutathione (GSH) and the GSH/ oxidized glutathione (GSSG) ratio were increased in the D+A group. Superoxide dismutase (SOD) and the glutathione peroxidase (GSH-Px) activities were without change. Apocynin enhances glucose uptake and insulin sensitivity, preserving the antioxidant defense and mitochondrial function.


Author(s):  
Ukperoro Uyoyo Jeremiah ◽  
Awarota Ruth Oghogho ◽  
Oroye Otsuko ◽  
Udeze Maria Chizoba

Background: The use of plants known to possess significant antioxidant activities have been widely recommended in the complementary and alternate system of medicine in the treatment of diabetes mellitus. Among the many plant used in Nigeria for the management of DM are Vernonia amygdalina and Ficus exasperata. This study was designed to assess the effect of the combination of the aqueous extract of Vernonia amygdalina and Ficus exasperata on blood glucose level, lipid profile, hepatic enzymes, lipid peroxidation and antioxidant status in alloxan-induced diabetes in rats. Method: Twenty five rats were divided into five groups. Four groups were made diabetic by the intra-peritoneal administration of alloxan monohydrate (150mg/kg body weight) while the fifth group served as normal control. Serum, hepatic and renal concentrations of reduced glutathione (GSH) and thiobarbituric acid reactive substances (TBARS) as well as the catalase activity were determined. The blood lipid profile and some hepatic enzymes were also studied. Result: The combined extract lowered lipid peroxidation, increase glutathione concentration and catalase activity in all the tissues of diabetic rats. The individual extract lowered the total cholesterol LDL-Cholesterol, coronary risk index (CRI), and atherogenic index (AI) while increasing the concentration of HDL cholesterol in alloxan-induced diabetic rats. Diabetes lowered hepatic enzymes’ activities but the leaf extract significantly increased it. Conclusion: It can be concluded that combination of the extracts showed additive effect on each other and it is highly recommended for the management of diabetes.


Life Sciences ◽  
2020 ◽  
Vol 263 ◽  
pp. 118573
Author(s):  
Mohammad Navid Ebrahimi ◽  
Mohammad Khaksari ◽  
Gholamreza Sepehri ◽  
Gholamreza Asadi Karam ◽  
Alireza Raji-amirhasani ◽  
...  

2019 ◽  
Vol 41 (3) ◽  
pp. 315-322 ◽  
Author(s):  
Jamal Khalilpour ◽  
Shiva Roshan-Milani ◽  
Farzaneh Hosseini Gharalari ◽  
Amin Abdollahzade Fard

Abstract Introduction: It is hypothesized that increased macrophage migration inhibitory factor (MIF) expression may contribute to diabetic nephropathy (DN) pathogenesis. The aim of the present study was to investigate the renal effects of MIF inhibition in a diabetic experimental model. Methods: Eighteen male Wistar rats (230 ± 20 g) were divided into three groups: 1) control, 2) diabetic (STZ, 50 mg/kg, dissolved in saline, ip), 3) diabetic + MIF antagonist (p425, 1 mg/kg per day, ip, on the 21th day, for 21 consecutive days). The treatment started since we founwd a significant increase in urine albumin excretion (UAE) rate in the diabetic rats in comparison with the control rats. The rats were kept individually in metabolic cages (8 AM-2 PM) and urine samples were collected in the 21 and 42th day. At the end, blood and tissue samples were collected for biochemical (BS, UPE, urine GAG, BUN, Cr, Na, and K) and histological analyses. Results: The results of this study showed that MIF antagonist (p425) significantly decreased urine protein and GAG excretion, urine protein/creatinine ratio, and serum BUN and Cr in the streptozotocin-induced DN in the rats. Pathological changes were significantly alleviated in the MIF antagonist (p425)-administered DN rats. Conclusion: Collectively, these data suggested that MIF antagonist (p425) was able to protect against functional and histopathological injury in the DN.


Author(s):  
Mohammed Ajebli ◽  
Ayoub Amssayef ◽  
Mohamed Eddouks

Aims: This study aimed to assess the effect of Scorzanera undulata on plasma lipid profile. Background: Scorzanera undulata (S. undulata) is a medicinal plant popularly used in the Moroccan pharmacopeia as traditional medicine, particularly to treat diabetes mellitus. Objective: The purpose of this study was to explore the effects of aqueous extract of Scorzanera undulata tubers (AERSU) on lipid profile and atherogenic indices in Wistar rats. Biochemical parameters such as total cholesterol (TC), triglycerides (TG), low-and high-density lipoproteins-cholesterol (LDL and HDL) were assessed. Furthermore, the in vitro antioxidant activity of AERSU was also evaluated. Methods: The effect of tubers aqueous extract (AERSU) of S. undulata (20 mg/kg) on plasma lipid profile was investigated in normal and streptozotocin(STZ)-induced diabetic rats. The aqueous extract was tested for its in vitro antioxidant activity. In addition cardiovascular parameters were estimated. Results: Treatment with AERSU significantly improved the weight in diabetic rats and decreased plasma cholesterol, triglycerides and LDL lipoproteins levels. Furthermore, the extract had a favorable impact on atherogenic index (AI) and coronary risk index (CRI). In addition, AERSU seems to possess a potent in vitro antioxidant activity. Conclusion: The study demonstrates that aqueous Scorzanera undulata extract exhibits antidyslipidemic and antioxidant activities.


2018 ◽  
Vol 2018 ◽  
pp. 1-10 ◽  
Author(s):  
Heba M. A. Abdelrazek ◽  
Omnia E. Kilany ◽  
Muhammad A. A. Muhammad ◽  
Hend M. Tag ◽  
Aaser M. Abdelazim

Diabetes mellitus is one of the metabolic diseases having several complications. Nigella sativa oil (NSO) might have beneficial effects in the treatment of diabetic complications. Thirty-two mature male Wistar rats were equally divided into four experimental groups: control, control NSO 2 mL/kg, streptozotocin- (STZ-) induced diabetic, and diabetic (STZ-induced) treated with oral NSO 2 mg/kg for 30 days. Fasting blood glucose (FBG), insulin, and lipid profile levels were determined. Pancreatic and hepatic tissues were used for catalase and GSH. Histopathology, hepatic glycogen contents, insulin immunohistochemistry, and pancreatic islet morphometry were performed. NSO 2 mL/kg was noticed to decrease (P<0.05) FBG and increase (P<0.05) insulin levels in diabetic rats than in diabetic nontreated animals. Lipid profile showed significant (P<0.5) improvement in diabetic rats that received NSO 2 mL/kg than in the diabetic group. Both pancreatic and hepatic catalase and GSH activities revealed a significant (P<0.05) increment in the diabetic group treated with NSO than in the diabetic animals. NSO improved the histopathological picture and hepatic glycogen contents of the diabetic group as well as increased (P<0.05) insulin immunoreactive parts % and mean pancreatic islet diameter. NSO exerts ameliorative and therapeutic effects on the STZ-induced diabetic male Wistar rats.


Biology ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 796
Author(s):  
Abdulaziz S. Saeedan ◽  
Gamal A. Soliman ◽  
Rehab F. Abdel-Rahman ◽  
Reham M. Abd-Elsalam ◽  
Hanan A. Ogaly ◽  
...  

Several members of the genus Artemisia are used in both Western and African traditional medicine for the control of diabetes. A considerable number of diabetic patients switch to using oral antidiabetic drugs in combination with certain herbs instead of using oral antidiabetic drugs alone. This study examined the effect of Artemisia judaica extract (AJE) on the antidiabetic activity of glyburide (GLB) in streptozotocin (STZ)-induced diabetes. Forty-two male Wistar rats were divided into seven equal groups. Normal rats of the first group were treated with the vehicle. The diabetic rats in the second–fifth groups received vehicle, GLB (5 mg/kg), AJE low dose (250 mg/kg), and AJE high dose (500 mg/kg), respectively. Groups sixth–seventh were treated with combinations of GLB plus the lower dose of AJE and GLB plus the higher dose of AJE, respectively. All administrations were done orally for eight weeks. Fasting blood glucose (FBG) and insulin levels, glycated hemoglobin (HbA1c) percentage, serum lipid profile, and biomarkers of oxidative stress were estimated. The histopathological examination of the pancreas and the immunohistochemical analysis of anti-insulin, anti-glucagon, and anti-somatostatin protein expressions were also performed. The analysis of the hepatic mRNA expression of PPAR-α and Nrf2 genes were performed using quantitative RT-PCR. All treatments significantly lowered FBG levels when compared with the STZ-control group with the highest percentage reduction exhibited by the GLB plus AJE high dose combination. This combination highly improved insulin levels, HbA1c, and lipid profile in blood of diabetic rats compared to GLB monotherapy. In addition, all medicaments restored insulin content in the β-cells and diminished the levels of glucagon and somatostatin of the α- and δ-endocrine cells in the pancreatic islets. Furthermore, the GLB plus AJE high dose combination was the most successful in restoring PPAR-α and Nrf2 mRNA expression in the liver. In conclusion, these data indicate that the GLB plus AJE high dose combination gives greater glycemic improvement in male Wistar rats than GLB monotherapy.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Daye Cheng ◽  
Bin Liang ◽  
Yunhui Li

TheGinkgo bilobaextract (GBE) has been reported to have a wide range of health benefits in traditional Chinese medicine. The aim of this study was to evaluate the antihyperglycemic effects of GBE on streptozotocin- (STZ-) induced diabetes in rats. Diabetes was induced in maleWistarrats by the administration of STZ (60 mg/kg b.w.) intraperitoneally. GBE (100, 200, and 300 mg/kg b.w.) was administered orally once a day for a period of 30 days. Body weight and blood glucose levels were determined in different experimental days. Serum lipid profile and antioxidant enzymes in hepatic and pancreatic tissue were measured at the end of the experimental period. Significant decreases in body weight and antioxidant ability and increases in blood glucose, lipid profile, and lipid peroxidation were observed in STZ-induced diabetic rats. The administration of GBE and glibenclamide daily for 30 days in STZ-induced diabetic rats reversed the above parameters significantly. GBE possesses antihyperglycemic, antioxidant, and antihyperlipidemia activities in STZ-induced chronic diabetic rats, which promisingly support the use of GBE as a food supplement or an adjunct treatment for diabetics.


2014 ◽  
Vol 50 (4) ◽  
pp. 765-771 ◽  
Author(s):  
Ma Song-Tao ◽  
Liu Dong-lian ◽  
Deng Jing-jing ◽  
Peng Yan-juan

Mulberry leaves (Morus alba L.) are a traditional Chinese medicine for blood serum glucose reduction. This study evaluated the protective effects of mulberry flavonoids on sciatic nerve in alloxan-induced diabetic rats. In this study, 80 Sprague-Dawley rats were divided into five groups: A (control), B (diabetic treated with saline), C-D (diabetic treated with 0.3, 0.1 g/kg mulberry flavonoids once a day for 8 weeks) and E (diabetic treated with 0.3 mg/kg methycobal). The diabetic condition was induced by intraperitoneal injection of 200 mg/kg alloxan dissolved in saline. At the end of the experimental period, blood, and tissue samples were obtained for biochemical and histopathological investigation. Treatment with 0.3 g/kg mulberry flavonoids significantly inhibited the elevated serum glucose (P< 0.01). The increased myelin sheath area (P< 0.01), myelinated fiber cross-sectional area and extramedullary fiber number (P< 0.05) were also reduced in alloxan-induced rats treated with 0.3 g/kg mulberry flavonoids. 0.3 g/kg mulberry flavonoids also markedly decreased onion-bulb type myelin destruction and degenerative changes of mitochondria and Schwann cells. These findings demonstrate that mulberry flavonoids may improve the recovery of a severe peripheral nerve injury in alloxan-induced diabetic rats and is likely to be useful as a potential treatment on peripheral neuropathy (PN) in diabetic rats.


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