Melatonin, quercetin and resveratrol attenuates oxidative hepatocellular injury in streptozotocin-induced diabetic rats

2015 ◽  
Vol 34 (9) ◽  
pp. 859-868 ◽  
Author(s):  
H Elbe ◽  
M Esrefoglu ◽  
N Vardi ◽  
E Taslidere ◽  
E Ozerol ◽  
...  
Keyword(s):  
Blood Glucose ◽  
Experimental Diabetes ◽  
Periodic Acid ◽  
Diabetic Rats ◽  
Albino Rats ◽  
Hepatocellular Injury ◽  
Diabetes Group ◽  
Periodic Acid Schiff ◽  
Glucose Levels ◽  
Blood Glucose Levels

In this study, effects of melatonin, quercetin and resveratrol on hepatocellular injury in streptozotocin (STZ)-induced experimental diabetes were aimed to be investigated by histological and biochemical methods. Thirty-five male Wistar albino rats were divided into five groups, namely, control, diabetes (STZ 45 mg/kg/single dose/intraperitoneally (ip)), diabetes + melatonin (10 mg/kg/30 days/ip), diabetes + quercetin (25 mg/kg/30 days/ip) and diabetes + resveratrol (10 mg/kg/30 days/ip). Initial and final blood glucose levels and body weights (BWs) were measured. At the end of the experimentation, following routine tissue processing procedure, sections were stained with haematoxylin–eosin (H-E), periodic acid Schiff and Masson’s trichrome. Tissue malondialdehyde (MDA) and glutathione (GSH) levels and superoxide dismutase (SOD) and catalase (CAT) activities were examined. The diabetic rats had significantly higher blood glucose levels than those of control rats ( p = 0.0001). Mean BWs of diabetic rats were significantly decreased when compared with the control rats ( p = 0.0013). Histopathological alterations including cellular glycogen depletion, congestion, sinusoidal dilatation, inflammation and fibrosis were detected in diabetes group. On the other hand, histopathological changes markedly reduced in all of the treatment groups ( p = 0.001). Mean tissue MDA level was increased but mean tissue CAT and SOD activities and GSH levels were decreased in the diabetes group. Melatonin, quercetin and resveratrol administered diabetic rats showed an increase in CAT activities and GSH levels and a decrease in MDA levels ( p < 0.05, for all). Melatonin, quercetin and resveratrol administrations markedly reduced hepatocellular injury in STZ-induced experimental diabetes.

scholarly journals Evaluation ofMallotus oppositifoliusMethanol Leaf Extract on the Glycaemia and Lipid Peroxidation in Alloxan-Induced Diabetic Rats: A Preliminary Study

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
C. O. Nwaehujor ◽  
I. I. Ezeigbo ◽  
F. C. Nwinyi
Keyword(s):  
Lipid Peroxidation ◽  
Antioxidant Activity ◽  
Blood Glucose ◽  
Oral Treatment ◽  
Fasting Blood Glucose ◽  
Diabetic Rats ◽  
Albino Rats ◽  
Glucose Levels ◽  
Blood Glucose Levels

Objective. Mallotus oppositifolius(Geiseler) Müll. Arg. (Euphorbiaceae) is folklorically used to “treat” diabetic conditions in some parts of Nigeria therefore the study, to investigate the extract of the leaves for activities on hyperglycaemia, lipid peroxidation, and increased cholesterol levelsin vivoin alloxan diabetic rats as well as its potential antioxidant activityin vitro.Methods. Albino rats (240–280 g) were given an injection of 120 mg/kg body weight, i.p. of alloxan monohydrate. After 8 days, diabetic animals with elevated fasting blood glucose levels (>9 mmol/L) were considered and selected for the study.Results. Oral treatment with the extract administered every 12 h by gavage at doses of 100, 200, and 400 mg/kg of the extract to the test rats, for 14 days, resulted in a significant dose-dependent decrease in blood glucose levels from 12.82 ± 1.02 mmol/dL to 4.92 ± 2.01 mmol/dL at the highest dose of 400 mg/kg compared to the control drug and glibenclamide as well as attendant significant decline in diabetic rats employed in the study.Conclusion. The extract also showedin vitroconcentration-dependent antioxidant activity following the 1,1-diphenyl-2-picryl-hydrazyl (DPPH) and ferric reducing assays. Findings further suggest the presence of active antidiabetic and antioxidant principles inM. oppositifoliusleaves.

scholarly journals PRELIMINARY PHYTOCHEMISTRY AND ANTIDIABETIC ACTIVITY OF PORTULACA GRANDIFLORA HOOK PLANT EXTRACT ON STREPTOZOTOCIN-INDUCED DIABETES IN RATS

2019 ◽  
pp. 87-90
Author(s):  
DEVI M ◽  
KOMAL S ◽  
LOGESHWARI B
Keyword(s):  
Blood Glucose ◽  
Ethanolic Extract ◽  
Diabetic Control ◽  
Diabetic Rats ◽  
Antidiabetic Activity ◽  
Albino Rats ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Portulaca Grandiflora ◽  
Streptozotocin Induced Diabetes

Objective: The present study was aimed to evaluate the antidiabetic activity of ethanolic extract of the whole aerial plant of Portulaca grandiflora Hook on streptozotocin (STZ)-induced diabetic rats. Methods: Experimental diabetes was induced by a single dose of intraperitoneal injection of STZ (150 mg/kg). Adult male Wister albino rats were divided into five groups; normal control, diabetic control, diabetic glibenclamide (5 mg/kg), diabetic P. grandiflora H. extract (200 mg/kg), and diabetic P. grandiflora H. extract (400 mg/kg) for 21 days and analyzed for body weight (BW) and blood glucose. Results: The STZ-treated diabetic control rats showed a significant increase in blood glucose with a concomitant decrease in BW. Oral administration of P. grandiflora H. extract (200 and 400 mg/kg) and glibenclamide (5 mg/kg) for 21 days showed a significant reduction in blood glucose levels and elevation in the bodyweight studies as compared to control and glibenclamide-treated rats. Conclusion: The results of the present study showed that a potent antidiabetic activity was present in the aerial part of plant P. grandiflora H. extract.

scholarly journals EFFECT OF TELMISARTAN ON BLOOD GLUCOSE LEVELS AND BLOOD LIPID LEVELS IN STREPTOZOTOCIN INDUCED DIABETIC RATS

2019 ◽  
Vol 12 (3) ◽  
pp. 1303-1308
Author(s):  
Siddamma Amoghimath ◽  
R. N. Suresha
Keyword(s):  
Blood Glucose ◽  
Lipid Profile ◽  
Blood Lipid ◽  
Diabetic Rats ◽  
Control Group ◽  
Albino Rats ◽  
Standard Drug ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Blood Lipid Levels

To evaluate the effect of telmisartan on blood glucose levels and blood lipid levels in streptozotocin induced diabetic rats. Eighteen Wistar albino rats weighing 150-200gms of either sex were randomly selected from the central animal facility, and divided into 3 groups. Diabetes was induced by injecting Streptozotocin intraperitonelly. The control group received 1% Gum acacia (oral), standard group received 0.5 mg/kg Glibenclamide (oral) and the test group received Telmisartan 7.2mg/kg body weight (oral) from 0-28 days respectively. Body weight of the individual rats were measured on the respective days before blood glucose estimation on 0, 1, 3, 7, 14, 21 & 28th day and fasting blood glucose was estimated by (ACCUCHECK) glucometer. Estimation of fasting lipid profile by lipid screening strips on 1st and 28th day. When compared to control the capillary blood glucose (CBG) levels in the Telmisartan group was less at all the intervals but comparable with that of standard drug Glibenclamide in Streptozotocin induced diabetic rats. Improved lipid profile was seen with the Telmisartan group when compared to control group in Streptozotocin induced diabetic rats. Hypoglycemic activity and improved lipid profile action was seen with Telmisartan group which is comparable to standard drug glibenclamide in streptozotocin induced diabetic albino rats.

scholarly journals Antidiabetic and antihyperlipidemic activities of extracts of Barleria cuspidata Heyne ex Nees on streptozotocin induced diabetic rats

2021 ◽  
Vol 12 (1) ◽  
pp. 643-652
Author(s):  
Manohar Reddy ◽  
Raja Sundararajan
Keyword(s):  
Body Weight ◽  
Blood Glucose ◽  
Glycosylated Hemoglobin ◽  
Hdl Cholesterol ◽  
Diabetic Rats ◽  
Albino Rats ◽  
Serum Triglycerides ◽  
Methanol Extracts ◽  
Glucose Levels ◽  
Blood Glucose Levels

Traditionally, Barleria cuspidata Heyne ex Nees is utilized for antidiabetic action with the absence of logical investigation. Thus, the current examination was attempted to explore for its antidiabetic and antihyperlipidemic movement in streptozotocin instigated diabetic animal models. Blood glucose levels were estimated in normoglycemic rats at initial, 60th and 120th minutes intervals and in glucose feed hyperglycemic rats at initial, 30, 60, 90 and 120 minutes after a solitary portion of streptozotocin at 55 mg/kg body weight intraperitoneal were made diabetic in albino rats. Blood glucose levels were estimated at week by week spans after everyday administration of chloroform and methanol extracts of Barleria cuspidata at dosages of 250 and 500 mg/kg body weight. Other biochemical boundaries of serum triglycerides, cholesterol, HDL-cholesterol, LDL-cholesterol, VLDL-cholesterol, total protein, albumin, globulin, uric acid, creatinine, urea, transaminases, alkaline phosphatase, alanine aminotransaminase, insulin and glycosylated hemoglobin were likewise estimated toward the finish of the investigation. Chloroform and methanol extracts of Barleria cuspidata by an oral organization for 21 days altogether (P<0.001) decreases the elevated blood glucose extents in diabetic rats whereas in normoglycemic rats it doesn't adjust the blood glucose amounts altogether and in glucose feed hyperglycemic rats significantly decreases the raised blood glucose levels. Likewise, the chloroform and methanol extracts of Barleria cuspidata improved other biochemical boundaries related to diabetes. Moreover, the extracts of Barleria cuspidata favourable affect the histopathological changes of pancreas in streptozotocin initiated diabetic rats. Delayed consequences legitimize the traditional utilization of Barleria cuspidata for its anti-diabetic action.

Therapeutic insights of hydromehtanolic leaf extract of Xanthium indi-cum and α-tocopherol in streptozotocin induced diabetic renal oxidative stress

2017 ◽  
Vol 6 (5) ◽  
pp. 158-166
Author(s):  
Anila Devi Meruva ◽  
Ravi Sahukari ◽  
Venkata Subbaiah Ganjikunta ◽  
Shanmugam Bhasha ◽  
Sathyavelu Reddy Kesireddy
Keyword(s):  
Blood Glucose ◽  
Serum Insulin ◽  
Microvascular Complications ◽  
Diabetic Rats ◽  
Albino Rats ◽  
Insulin Levels ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Body Weights ◽  
Mda Content

Diabetic nephropathy (DN) is one of the important microvascular complications of diabetes mellitus. Several phytochemicals have been reported to show beneficial consequences in Xanthium indicum leaves and α-tocopherol is a well known antioxidant, putting a halt to the fatality of renal dysfunc-tions in DN. In the current study, seven groups of male albino rats six in each group, received the following treatment scheduled for 4 weeks: Normal control, Xanthium indicum, α-tocopherol, Diabetes control, Glibenclamaide treated diabetic, α-tocopherol treated diabetic and Xanthium treated diabetic. Evaluations were made for blood glucose levels, body weights, serum insulin levels, MDA content, creatintne in urine as well as in serum and the histopathological changes were monitored kidney tissues in all experimental rats. Blood glucose levels were significantly (***P<0.001) decreased whereas serum insulin levels and body weights were significantly (***P< 0.001) in-creased, MDA content, serum creatinine levels were significantly (***P< 0.01), (***P<0.001), decreased and urine creatinine levels were increased with the treatment of plant extract and α-tocopherol in diabetic rats. Overall, the findings of this study indicated that the hydromethanolic extract of X. indicum leaves and α-tocopherol possesses a potent capacity that attenuates the renal damage to minimize the deleterious effects of free radicals by maintaining renal hemodynamics in diabetic conditions probably through its antioxidative and hypoglycaemic activity.

scholarly journals Paradoxical refractoriness developing with the allogeneic transfer of splenic lymphocyte total RNA from animals with treated alloxan diabetes to animals with untreated diabetes

2020 ◽  
pp. 37-46
Author(s):  
Н.М. Геворкян ◽  
Н.В. Тишевская ◽  
А.Г. Бабаева
Keyword(s):  
Diabetes Mellitus ◽  
Bone Marrow ◽  
Blood Glucose ◽  
Alloxan Diabetes ◽  
Diabetic Rats ◽  
Female Rats ◽  
Diabetes Group ◽  
Total Rna ◽  
Glucose Levels ◽  
Blood Glucose Levels

Ранее нами было показано, что препараты аллогенной суммарной РНК, выделенной из лимфоидных и стволовых клеток здоровых животных, вызывают нормализацию уровня глюкозы крови у крыс со стойким аллоксановым сахарным диабетом. Цель исследования -- выяснение влияния суммарной РНК лимфоцитов селезенки крыс, ранее перенесших стойкий аллоксановый диабет, на особенности течения эксперименального аллоксанового диабета у животных. Методика. Эксперимент выполнен на 35 белых беспородных крысах-самках массой 250-280 г: 5 интактных животных, 20 - с экспериментальным аллоксановым сахарным диабетом и 10 животных, ранее перенесших стойкий аллоксановый диабет, у которых уровень глюкозы крови был полностью нормализован введением суммарных РНК клеток костного мозга, селезенки и поджелудочной железы. Диабет у этих животных моделировали однократным подкожным введением полного адъюванта Фрейнда (0,5 мл на крысу) и последующим подкожным введением аллоксана тригидрата в дозе 200 мг/кг. Достигнутая нормогликемия у животных подтверждалась в течение последующих 60 сут. Из селезенок и костного мозга этих животных методом фенол-хлороформной экстракции была выделена суммарная РНК. На 20 крысах с экспериментальным аллоксановым сахарным диабетом изучали эффекты однократного внутрибрюшинного введения полученной суммарной РНК (15 мкг/100 г массы тела животного). Результаты. Обнаружено, что при введении суммарной РНК селезенки крыс, ранее перенесших аллоксановый диабет, животным с аллоксановым диабетом у последних развивалась стойкая и длительная рефрактерность к лечению терапевтическими препаратами РНК. Заключение. 1. Выявлен феномен повышенной чувствительности крыс с аллоксановым диабетом к действию суммарной РНК селезенки животных, ранее перенесших аллоксановый диабет. 2. Предполагаемой причиной рефрактерности является клональный компонент суммарной РНК CD8+ Т-лимфоцитов памяти из селезенки животных, ранее перенесших аллоксановый диабет. 3. Предполагается наличие механизма адресного взаимодействия отдельных компонентов суммарной РНК селезенки крыс, ранее перенесших аллоксановый диабет, с их лимфоцитами-мишенями в организме реципиентов с аллоксановым диабетом. Introduction. Earlier we have shown that preparations of allogenic total RNA from lymphoid and stem cells of healthy animals contribute to normalization of blood glucose levels in white outbred rats with persistent alloxan-induced diabetes mellitus. The aim of this study was to find out whether allogenic total RNA isolated from the spleen of rats treated for alloxan diabetes affects its course, as determined by changes in blood glucose, in animals with persistent alloxan diabetes. Methods. Experiments were performed on 35 white outbred female rats weighing 250-280 g. Rats were divided into intact animals (n=5), rats with experimental alloxan diabetes mellitus (n=20), and rats after persistent alloxan diabetes (n=10) whose blood glucose level had been completely normalized by administrating total RNA of bone marrow, splenic, and pancreatic cells (post-diabetes group). Diabetes mellitus was modeled with a single subcutaneous (s.c.) injection of complete Freund’s adjuvant (0.5 ml) followed by a s.c. injection of alloxan trihydrate (200 mg/kg). Achievement of normoglycemia in animals of the post-diabetes group was confirmed over the next 60 days. Then total RNA was isolated from their spleen and bone marrow by phenol-chloroform extraction, and the effect of a single intraperitoneal injection of total RNA (15 μg/100 g body weight) was studied. Results. Administration of splenic total RNA from rats previously treated for alloxan diabetes to animals with alloxan diabetes resulted in development of stable and prolonged refractoriness of diabetic rats to the treatment with therapeutic RNA preparations [11]. Conclusions. This study discovered a phenomenon of hypersensitivity of rats with alloxan diabetes to the diabetogenic effect of total RNA from animals that had previously had alloxan diabetes. Apparently, this refractoriness was caused by the clonal component of the total RNA of CD8 + T memory lymphocytes from the spleen of post-diabetes animals. A mechanism is proposed for the interaction between individual components of splenic total RNA from post-diabetes rats and their target lymphocytes in recipients with alloxan diabetes.

scholarly journals Effect of turmeric on alloxan induced diabetes mellitus in albino rats

2019 ◽  
Vol 8 (2) ◽  
pp. 264
Author(s):  
Mugdha Rajeeva Padhye ◽  
Sangita Devrao Jogdand
Keyword(s):  
Diabetes Mellitus ◽  
Blood Glucose ◽  
Adverse Effects ◽  
Ethanolic Extract ◽  
Diabetic Rats ◽  
Albino Rats ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Organ Systems ◽  
Mean Blood Glucose

Background: Diabetes mellitus is a chronic metabolic disorder of glucose metabolism characterised by hyperglycaemia. Long standing diabetes mellitus leads to various complications affecting multiple organ systems. Management of diabetes mellitus includes lifestyle modification and pharmacotherapy. Pharmacotherapy of diabetes mellitus includes a wide variety of drugs that help in achieving adequate glycaemic control. Anti-diabetic medications are however associated with several adverse effects. Phytochemicals are being used extensively for the treatment of various diseases. Use of phytochemicals would minimize adverse effects due to various anti-diabetic drugs and improve patient compliance. In the present study, authors studied the effect of turmeric on alloxan induced diabetes mellitus in albino rats.Methods: Albino Wistar rats of either sex weighing 180 - 250grams were utilized for the present study. Diabetes mellitus was induced by intraperitoneal administration of alloxan. Ethanolic extract of turmeric was administered to diabetic rats daily orally for duration of 28 days. Blood glucose levels were monitored using glucometer before and after intervention with turmeric.Results: Statistically significant reduction in mean blood glucose levels (p value <0.05) was seen after intervention with turmeric in diabetic rats. There was a significant reduction in mean blood glucose levels.Conclusions: Ethanolic extract of turmeric showed antihyperglycemic effect in diabetic rats.

Antidiabetic Activity of Fractions of the n-Hexane Extract of Leaves of Eriosema psoraleoides (Lam) G. Don (Leguminosae) on Alloxan-induced Diabetic Albino Rats

2019 ◽  
Vol 7 (04) ◽  
pp. 05-09
Author(s):  
N. A. Elechi ◽  
F. W. Ewelike
Keyword(s):  
Blood Glucose ◽  
Diabetic Rats ◽  
Hexane Extract ◽  
Antidiabetic Activity ◽  
Albino Rats ◽  
Standard Drug ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Rf Values ◽  
Blood Glucose Concentrations

Diabetes is a chronic disease that is raising health concerns. Eriosema psoraleoides is one of the medicinal plants reported to be used in managing this condition in Eastern Nigeria. This study investigated the effect of four fractions [(n-hexane; n-hexane: dichloromethane (50:50); dichloromethane; and dichloromethane: methanol (95:5)] of the n-hexane leaf extract of this plant on the blood glucose levels of alloxan-induced diabetic rats. The n-hexane extract was obtained by maceration, filtration, and evaporation using a rotary evaporator. Phytochemical screening of the extracts was carried out using standard methods. The extract was fractionated using column chromatography, and ten fractions were obtained. The fractions were pooled together into four fractions based on the similarity in their Rf values. A dose of 200mg/kg of each of the fractions was given orally for 7 days to the alloxan-induced diabetic rats, and plasma blood glucose concentrations determined. Preliminary screening of the extract revealed the presence of flavonoids, steroids, reducing sugars, tannins and combined anthraquinones. Two fractions, the n-hexane: dichloromethane (50:50) and the dichloromethane, produced significant (p 0.05) decrease in blood glucose concentrations in their treated groups compared to that of glibenclamide (standard drug) treated, and the diabetic untreated groups of the diabetic rats. However, the n-hexane and the dichloromethane: methanol (95:5) fractions produced no significant (p 0.05) decrease in blood glucose concentrations. The observed antidiabetic property of the n-hexane: dichloromethane (50:50) and the dichloromethane (100%) fractions suggests that Eriosema psoraleoides could be used in the management of diabetes and this gives credence to its use in ethnomedicine for this purpose.

scholarly journals Attenuation of Diabetic Nephropathy in Streptozotocin Induced Diabetic Rats by Methanolic Extract of Bougainvillea spectabilis Aerial Parts

2019 ◽  
Vol 11 (1) ◽  
Author(s):  
N.V.L Suvarchala Reddy V ◽  
M. Ganga Raju ◽  
B. Alekhya ◽  
C.V.S Subrahmanyam
Keyword(s):  
Diabetic Nephropathy ◽  
Blood Glucose ◽  
Methanolic Extract ◽  
Periodic Acid ◽  
Diabetic Rats ◽  
Histological Evaluation ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Bougainvillea Spectabilis ◽  
Serum And Urine

Diabetic nephropathy has become a leading cause of end stage renal failure worldwide. To develop Complementary and Alternative Medicine for the treatment of diabetic nephropathy, the present study investigated the protective effects of methanolic extract of Bougainvillea spectabilis (MEBS) in streptozotocin-induced diabetic nephropathy. In this study, diabetes was induced by a single injection of streptozotocin (STZ, 45 mg/kg, i.p.) in rats. STZ diabetic rats were treated with oral doses of MEBS (200 and 400 mg/kg) for 8 weeks. At the end of the experimental period body, kidney weight, blood glucose levels, serum and urine parameters were investigated. Antioxidant enzymes and lipid peroxide levels were determined in the kidney along with histopathological examination of the same. MEBS significantly increased body weight, lowered blood glucose levels and ameliorated kidney hypertrophy index in the STZ-diabetic rats. The extract also decreased the levels of creatinine, blood urea nitrogen, total cholesterol, triglycerides, advanced glycation end products and albumin in serum and urine, respectively. MEBS significantly increased the antioxidant parameters in the kidney. Histological evaluation revealed that MEBS treated STZ-diabetic rats demonstrated reduced vacuolar degeneration of tubules; periodic acid Schiff base (PAS) positivity staining intensity in glomeruli and basement membrane thickening. Present findings provide experimental evidence that MEBS has potential antioxidant, antihyperglycemic and anti-glycation activities which might be helpful in slowing the progression of diabetic nephropathy.

scholarly journals Antidiabetic Effect of Pleurotus ostreatus (Jacq.ex Fr) kumm. Mushroom on Alloxan-induced Diabetic Rats.

2013 ◽  
Vol 1 (02) ◽  
pp. 31-36
Author(s):  
Imoh Johnny ◽  
Joseph Okon
Keyword(s):  
Blood Glucose ◽  
Pleurotus Ostreatus ◽  
Lethal Dose ◽  
Ethanolic Extract ◽  
Diabetic Rats ◽  
Albino Rats ◽  
Reference Drug ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Treatment Dose

Antidiabetic effects of ethanolic extract of Pleurotus ostreatus (mushroom) on alloxan-induced diabetic rats was studied. The median lethal dose (LD50) of the extract was determined to be 3,472.14 mgkg-1 and a single dose of 380.0, 760.0 and 1140.0 body weight of the extract were intraperitoneally administered as the treatment dose and the blood glucose levels (BGL) examined for 7 hours and 15 hours (prolonged) at 2 and 4 hours intervals respectively. The extract exhibited significant (p 0.05 and p 0.01) reduction in the blood glucose levels of the albino rats. The extract compared favourably with the standard reference drug (metformin) which all gave their maximum BGL reduction at 5 hours duration. The confirmation of antidiabetic potentials of the Pleurotus ostreatus tuber has been justified in this study as claimed by traditional medicine practitionersin Akwa Ibom State.

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