Hypoglycemic effect of Egyptian Morus alba root bark extract: Effect on diabetes and lipid peroxidation of streptozotocin-induced diabetic rats

2005 ◽  
Vol 100 (3) ◽  
pp. 333-338 ◽  
Author(s):  
Abdel Nasser B. Singab ◽  
Hesham A. El-Beshbishy ◽  
Makiko Yonekawa ◽  
Taro Nomura ◽  
Toshio Fukai
2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Nisha Panth ◽  
Keshav Raj Paudel ◽  
Dal-Seong Gong ◽  
Min-Ho Oak

Morus alba (white mulberry) is native to the northern part of Korea and popularly used as a traditional medicine due to its numerous health benefits against human’s disease. However, the possibility that M. alba may also affect the cardiovascular system remains unexplored. This study sought to investigate the vascular protective effects of the root bark extract of M. alba (MAE). Vascular reactivity was performed in organ baths using isolated rat thoracic aorta, while platelet derived growth factor (PDGF) induced proliferation and migration of vascular smooth muscle cells (VSMCs) were studied by 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium (MTS) and wound healing assay, respectively. MAE evoked a concentration dependent vasorelaxation following endothelium-dependent pathway. However, vessel relaxations in response to MAE were markedly reduced after endothelium removal; treatment of endothelial nitric oxide synthase inhibitor, guanylyl cyclase inhibitor, and nonspecific potassium channel inhibitor, however, was not altered by cyclooxygenase inhibitor. Furthermore, MAE also significantly blunted contractile response to vasoconstrictor agent, phenylephrine. Taken together, the current evidence revealed that MAE is a potent endothelium-dependent vasodilator and this effect was involved in, at least in part, nitric oxide cyclic-guanosine monophosphate (NO-cGMP) pathway in combination with potassium (K+) channel activation. Moreover, MAE inhibited proliferation and migration of VSMCs induced by PDGF. Therefore, MAE could be a promising candidate of natural medicine for preventing and controlling cardiovascular diseases linked with endothelial dysfunction.


Author(s):  
Kavitha Yuvaraj ◽  
Arumugam Geetha

Abstract Background Chronic pancreatitis (CP) is a persistent inflammation of the pancreas clinically presented with severe abdominal pain, progressive fibrosis, and loss of exocrine and endocrine functions. Inflammasomes, cytosolic multiprotein complexes which regulate the formation of proinflammatory cytokines, are influenced by various factors including heat shock proteins (HSPs). Morus alba L., or white mulberry root bark is a valued traditional Asian medicine with a diverse array of phytochemicals. The aim of this investigation was to define the modulatory action of methanolic extract of Morus alba root bark (MEMARB) on NLRP3 inflammasome, and HSPs in pancreas subjected to inflammatory insult. Methods Pancreatitis was induced in male albino Wistar rats by ethanol (0–36%) and cerulein (20 µg/kg b.wt., i.p.) for 5 weeks with or without MEMARB administration. Serum lipase/amylase (L/A) ratio, oxidative stress index (OSI) and reduced glutathione (GSH)/oxidized glutathione (GSSG) ratio in the pancreas were evaluated. Levels of serum HSP70 was quantified by ELISA. NF-kappa B, NLRP3-ASC, caspase-1, IL-1β, IL-18, and HSP70 gene expression was quantified by quantitative real-time polymerase chain reaction (qPCR). Results L/A ratio and oxidative stress determined in terms of OSI and GSH/GSSG ratio were elevated in pancreatitis-induced rats. The levels were restored in MEMARB co-administered animals. Serum level of HSP70 was increased in pancreatitis-induced animals and dropped significantly in MEMARB co-administrated rats. Pancreatitis-induced group showed increased expression of NF-kappa B, IL-1β, IL-18, caspase-1, NLRP3-ASC and HSP70 mRNA than in MEMARB treated group. Conclusions It can be concluded that the M. alba root extract modulates the expression of HSP70 and NLRP3-ASC which might be attributed to its pancreato-protective effect.


2007 ◽  
Vol 2 (4) ◽  
pp. 1934578X0700200 ◽  
Author(s):  
Nisakarn Pianwijanpong ◽  
Narongchai Pongpan ◽  
Leena Suntornsuk ◽  
Omboon Luanratana

Mulberry plants have various traditional uses in Thailand, China, Korea and Vietnam. Recently, the root bark of Morus alba L. is used as whitening ingredient in various skin preparations. This paper describes the isolation of two triterpenes from the root bark of a 5 years old hybrid between M. alba L. and M. rotundiloba Koidz., a mulberry sericulture NM60 which is widely grown in Thailand for tea and silk industries. Pentacyclic triterpenes, α-amyrin acetate and betulinic acid, were isolated and identified, their structures were elucidated on the basis of spectroscopic analyses. The antityrosinase activities were tested having the IC50 values of 1.57 mM and 0.50 mM respectively. A validated HPLC technique for betulinic acid was also reported. Linear regression analysis of betulinic acid fell within the range of 61.25-409.15 μg/mL with a linear coefficient of 0.9992. The percentage of recovery is in accordance with that specified by the USP. The limit of detection and limit of quantification were 14.7 and 61.25 μg/mL, respectively. The analysis of the crude methanolic extract revealed 0.14% w/w betulinic acid in the root bark. These findings promote the use of the root bark extract of Thai mulberry hybrid in whitening cosmetics using betulinic acid as a marker and promote further study for the development of antimelanoma agent.


2016 ◽  
Vol 8 (3) ◽  
pp. 277-280
Author(s):  
Patrick E. ABA ◽  
Isaac U. ASUZU

Diabetes mellitus is an endocrine and a metabolic disease resulting from the destruction of pancreatic beta cells; thus assessment of the pancreas in diabetic rats is important in monitoring therapy. The hereby study assessed pancreatic status of diabetic rats treated with methanol root bark extract of Cussonia arborea. A total of seventy two (72) male albino wistar rats weighting between 100-105 g were assigned into six (6) groups of twelve (12) rats per group. Groups 1-5 were diabetic infected by single intraperitoneal injection with alloxan monohydrate, at the dose of 160 mg/kg and treated with 62.5, 125, 250 mg/kg bw of the extract, 2 mg/kg bw glibenclamide and 10 ml/kg distilled water (DW) respectively, while the non diabetic rats, represented by Group 6, received 10 ml/kg DW and served as normal control rats. The treatment was applied daily through the oral route for 84 days. At the end of the experiment, the pancreas organs were acquired under light ether anaesthesia for histomorphometric assessment. The results indicated that the cells of the islet of langerhans of the diabetic untreated rats (Group 5) were severely depleted when compared to that of the normal rats (Group 6). The islet cells of the diabetic rats treated with 125 mg/kg Cussonia arborea extract (Group 2) was comparable to that of the diabetic rats treated with glibenclamide (Group 4) and the normal control rats. It was concluded that the methanol extract of C. arborea, especially at the dose of 125 mg/kg, ameliorated pancreatic lesions induced by diabetes occasioned by alloxan.


Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1266
Author(s):  
Abhijit Ghosh ◽  
Syed Imam Rabbani ◽  
Syed Mohammed Basheeruddin Asdaq ◽  
Yahya Mohzari ◽  
Ahmed Alrashed ◽  
...  

Cytogenetic analysis is essential to determine the effect of mutagens and antimutagens on genetic material. This study was done to evaluate the protective effect of root bark extract of Morus alba (M. alba) against cyclophosphamide induced somatic and germinal cell damage in male rats. The ethanolic extract of M. alba (0.25, 0.5 and 1 g/kg, 2 weeks) was evaluated against cyclophosphamide (75 mg/kg, single dose) induced nuclear damage. The sampling was done after 48 h of the clastogen treatment. The somatic and germinal nuclear damage was studied by bone marrow micronucleus and sperm analysis, respectively. Serum superoxide and catalase levels were estimated to determine the antioxidant status in each group. The results were analyzed statistically to find the significant variation. The administration of M. alba for 2 weeks suppressed dose-dependently the changes induced by cyclophosphamide. M. alba (0.5 g/kg) decreased the frequency of micronucleated erythrocyte, sperm shape abnormality and enhanced the sperm count, sperm motility and polychromatic-normochromatic erythrocytes ratio significantly (p < 0.05) in comparison with the cyclophosphamide treated group. The highest tested dose of M. alba (1 g/kg) produced more prominent suppression (p < 0.01) in the cyclophosphamide-induced somatic and germinal cell defects. The results also showed significant (p < 0.05) improvement in the serum antioxidant enzymes levels with M. alba when compared with the challenge group. The lower dose of M. alba extract (0.25 g/kg) prevented the CP-induced changes but was found to be statistically insignificant. Therefore, antimutagenic potential of the high dose of the extract of M. alba is possibly due to its antioxidant nature. The ability of the M. alba extract to prevent the nuclear damage could play an important role in overcoming several mutational defects that are associated with anticancer chemotherapy.


Author(s):  
Patrick Emeka Aba ◽  
Isaac Uzoma Asuzu

This study investigated the effects of methanol extract of Cussonia arborea on serum lipid and oxidative stress biomarkers of alloxan-induced diabetic rats. A total of 72 male albino rats assigned into 6 groups of 12 rats per group were used. Groups 1-5 were made diabetic while group 6 were normal. Groups 1-4 were treated with 62.5, 125, 250 mg/kg of the extract and 2 mg/kg glibenclamide respectively while groups 5 and 6 received 10 ml/kg distilled water each. Total cholesterol, triglyceride, high density lipoprotein (HDL), malondiadehyde, catalase, and superoxide dismutase (SOD) were assayed on days 28, 56 and 84 post treatment. The results indicated that the extract significantly (p<0.05) reduced the levels of total cholesterol, triglyceride, malondialdehyde but significantly (p<0.05) increased the activities of SOD, catalase and the levels of HDL when compared to negative control. It was therefore concluded that methanol extract of C. arborea mitigated dyslipidaemia and oxidative stress.


2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Moses Solomon Agwaya ◽  
Peter California Vuzi ◽  
Agnes Masawi Nandutu

Background. Medicinal plants offer cheaper and safer treatment options to current diabetic drugs. The present study evaluated the effect of aqueous root bark extract ofZanthoxylum chalybeumon oral glucose tolerance and pancreas histopathology in alloxanized rats.Method. Diabetes was induced in rats by administration of alloxan monohydrate. Root extract ofZ. chalybeumwas administered to rats at 200 and 400 mg/kg BW daily for 28 days. Blood glucose was measured by glucometer and pancreatic histopathology evaluated microscopically.Results. Initial increase was observed in blood glucose of the rats after oral administration of glucose from time zero. Two hours after treatment withZ. chalybeum, a significant reduction in blood glucose was observed within treatment groups (p<0.05) compared to 0.5 hr and 1 hr. There was no significant difference between treatment group receiving 400mg/Kg BW extract and the normal groups (p=0.27), implying that the former group recovered and were able to regulate their blood sugar, possibly via uptake of glucose into cells. The reversal in pancreatic histopathology further supports the protective effect ofZ. chalybeumextract towards diabetic damage.Conclusion. Extract ofZ. chalybeumis effective in controlling blood glucose in diabetes and protecting pancreatic tissues from diabetic damage.


1969 ◽  
Vol 34 (4) ◽  
pp. 343-346
Author(s):  
Conrado F. Asenjo ◽  
Delia Fernández

These results indicate that, under the conditions of our experiment, an aqueous infusion of mora leaf, prepared as previously described, does not have hypoglycemic effect on alloxan diabetic rats nor does it reduce the excretion of glucose in the urine. Our findings agree with those of Paniagua and Hernández (3). These investigators submitted to clinical test the same mora leaf infusion prepared by us as already described. Their test consisted of the oral administration of 1000-1500 ml. of the infusion each 24 hour period, for no less than 2 days, to diabetic patients standardized on diets supplying from 150-250 grams of carbohydrate per day. They did not observe improvement in a single one of the 5 patients thus treated. In all of them the blood sugar increased when mora infusion per os replaced regular insulin treatment.


Sign in / Sign up

Export Citation Format

Share Document