scholarly journals Antihyperglycemic and antihyperlipidemic effects of low-molecular-weight carrageenan in rats

2018 ◽  
Vol 13 (1) ◽  
pp. 379-384 ◽  
Author(s):  
Xia Qiu ◽  
Wenwen Zhong

AbstractThis study investigated the antihyperglycemic and antihyperlipidemic effects of low-molecular-weight carrageenan (LC) on rats fed a high-fat diet. Wistar rats were divided into five groups: normal control group (NC), high-fat diet control group (HC), carrageenan-treated control group (CC), 1% LC group (1% LC), and 3% LC-groups (3% LC). Body weight, food intake, fecal weight, blood glucose, and serum lipid levels were measured. After 30 days, body weight significantly decreased in the LC-treated groups than in the HC group. Moreover, in the LC-treated groups, postprandial blood glucose, total cholesterol, triglyceride, and low-density lipoprotein cholesterol (LDL-C) levels decreased, whereas high-density lipoprotein cholesterol (HDL-C) levels increased. From this study, our data suggest that LC has antihyperglycemic and hypolipidemic effects when compared to carrageenan, likely related to its increased absorption due to its lower molecular weight.

Author(s):  
Noor Kaokabah ◽  
Adana Al-Qubati ◽  
Ghanya Al-Naqeb

Background: Pulicaria jaubertii E. Gamal-Eldin is a traditional medicine and flavoring used in Yemen where a large number of people depend on herbal plants to treat their ailments. This study was conducted to determine and compare the effects of Pulicaria jaubertii leaves and flowers aqueous extract (PJAE) and Pulicaria jaubertii leaves and flowers in powder form mixed with diet (PJPD) on obesity induced rats by high-fat diet (HFD). Methods: Obesity was experimentally induced in male Sprague Dawley rats by feeding them a high-fat diet for 6 weeks. The rats were divided into 3 groups, the HFD control group, whereas the rats fed HFD only and the PJAE group where the rats fed HFD + PJAE and PJPD where the rats fed HFD + PJPD. PJAE was administrated by gavage at 1g/kg body weight and the activity of PJPD was determined as oral administration at 10% of the diet.  Food intake and gain weight were taken once a week and blood samples were obtained at the end of the experiment for lipid profile analysis, glucose level and toxicity parameter including liver and kidney functions parameters. Results: The results indicated a significant decrease in the percentage of weight gain and in the PJPD group at the fifth and sixth weeks of treatment compared to the HFD control rats. Also, there was a significant decrease in the level of blood triglycerides in the PJPD compared to the HFD group. Where no significant change was observed in the percentage of weight gain and triglyceride level in the PJAE group compared to the HFD control rats. Also, there was no significant changes in all the tested parameters including, total cholesterol, high-density lipoprotein cholesterol and low-density lipoprotein cholesterol, liver enzymes and creatinine and urea levels. Conclusion: The results obtained from this study showed that the leaves and flowers of Pulicaria jaubertii mixed with HFD had an anti-obesity effect in rats fed with HFD, and the anti-obesity effects of PJ could be attributed to the phytochemicals present. Therefore, the current study scientifically confirms the traditional use of PJ as a potential candidate for body weight loss. Peer Review History: Received: 7 September 2020; Revised: 11 October; Accepted: 25 October, Available online: 15 November 2020 UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file Average Peer review marks at initial stage: 5.5/10 Average Peer review marks at publication stage: 7.0/10 Reviewer(s) detail: Prof. Dr. Hassan A.H. Al-Shamahy, Sana'a University, Yemen, [email protected] Dr. Gulam Mohammed Husain, National Research Institute of Unani Medicine for Skin Disorders, Hyderabad, India, [email protected] Comments of reviewer(s): Similar Articles: ASSESSMENT OF THE RISK OF TYPE 2 DIABETES AMONG HEALTHY WITHOUT DIABETES IN SUDAN USING THE FINDRISC TOOL


Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 302
Author(s):  
Ahtesham Hussain ◽  
Jin Sook Cho ◽  
Jong-Seok Kim ◽  
Young Ik Lee

Background: Currently, obesity is a global health challenge due to its increasing prevalence and associated health risk. It is associated with various metabolic diseases, including diabetes, hypertension, cardiovascular disease, stroke, certain forms of cancer, and non-alcoholic liver diseases (NAFLD). Objective: The aim of this study to evaluate the effects of polyphenol enriched herbal complex (Rubus crataegifolius/ellagic acid, Crataegus pinnatifida Bunge/vitexin, chlorogenic acid, Cinnamomum cassiaa/cinnamic acid) on obesity and obesity induced NAFLD in the high-fat diet (HFD)-induced obese mouse model. Methods: Obesity was induced in male C57BL/6 mice using HFD. After 8 weeks, the mice were treated with HFD+ plants extract for 8 weeks. Body weight, food intake weekly, and blood sugar level were measured. After sacrifice, changes in the treated group’s liver weight, fat weight, serum biochemical parameters, hormone levels, and enzyme levels were measured. For histological analysis, tissues were stained with hematoxylin-eosin (H&E) and Oil Red-O. Results: Our results showed that the herbal complex ameliorated body weight and liver weight gain, and decreased total body fat in HFD-fed animals. Post prandial blood glucose (PBG) and fasting blood glucose (FBG) were lower in the herbal complex-treated group than in the HFD control group. Additionally, herbal formulation treatment significantly increased HDL levels in serum and decreased TC, TG, AST, ALT, deposition of fat droplets in the liver, and intima media thickness (IMT) in the aorta. Herbal complex increased serum adiponectin and decreased serum leptin. Herbal complex also increased carnitine palmityl transferase (CPT) activity and significantly decreased enzyme activity of beta-hydroxy beta methyl glutamyl-CoA (HMG-CoA) reductase, and fatty acid synthase (FAS). Conclusions: The results of this study demonstrated that the herbal complex is an effective herbal formulation in the attenuation of obesity and obesity-induced metabolic dysfunction including NAFLD in HFD-induced mouse model.


2017 ◽  
Vol 52 (3) ◽  
pp. 174
Author(s):  
Purwo Sri Rejeki ◽  
Harjanto Harjanto ◽  
Raden Argarini ◽  
Imam Subadi

The aim of this study was to determine the comparative effects of EA (EA) on the CV12, ST36 and ST40 to weight gain prevention over the short-term regulation of energy balance. The study was conducted with a completely randomized design. Rats were divided into five groups: negative control group (no treatment, n=5), positive control (sham EA/back, n=5), EA CV 12 (n=6), EA ST 36 (n=6) and EA ST 40 (n=7). Rats were exposed to high-fat diet for two weeks and EA was simultaneously performed once daily, five days a week for two weeks with 2 Hz, for 10 minutes with continuous wave. Body weight, BMI, front limb circumference and rear were measured during study. Levels of blood glucose, cholesterol, triglycerides, LDL and HDL were measured at the end of the study; which reflects the short-term regulation of energy homeostasis. For weight loss, EA CV12, ST36 and ST40 group have lost weight significantly compared to the negative and positive control group. The ST40 group has a significant decrease than ST36 and CV12. The most significant decrease in BMI found in the ST40 group. EA did not affect blood glucose levels, but modulated blood lipid profile. In ST 40 group there was a significant decrease in cholesterol, LDL and triglycerides. EA at point ST 40 is potential in preventing increased body weight and BMI in rats exposed to high-fat diet compared to the CV 12 and ST 36. ST 40 is a point with a potential of lowering LDL and triglycerides serum so that it can play a role in the short term regulation of energy homeostasis but also in the prevention of dyslipidemia.


Author(s):  
Zhen-hong Xia ◽  
Wen-bo Chen ◽  
Li Shi ◽  
Xue Jiang ◽  
Ke Li ◽  
...  

Curcumin is the main secondary metabolites of Curcuma longa and other Curcuma spp, and has been reported to have some potential in preventing and treating some physiological disorders. This study investigated the effect curcumin in inhibiting high-fat diet and streptozotocin (STZ)-induced hyperglycemia and hyperlipidemia in rats. Twenty-six male Sprague-Dawley (SD) rats (170-190 g) were randomly divided into a standard food pellet diet group (Control group), a high-fat diet and streptozotocin group (HF+STZ group), and a high-fat diet combined with curcumin and STZ group (HF+ Cur +STZ group). Compared with the HF+STZ group, the HF+Cur+STZ group exhibited significantly reduced fasting blood glucose (FBG), total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), alanine aminotransferase (AST) and aspartate transaminase (ALT) levels, and liver coefficients; in the livers of these rats, the expression of malondialdehyde (MDA) and Bax was downregulated, whereas that of superoxide dismutase (SOD) and Bcl-2 was upregulated. Moreover, the liver histology of these rats was improved and resembled that of the control rats. These results suggest that curcumin prevents high-fat diet and STZ-induced hyperglycemia and hyperlipidemia, mainly via anti-oxidant and anti-apoptotic mechanisms in the liver.


Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 271 ◽  
Author(s):  
Zhen-Hong Xia ◽  
Wen-Bo Chen ◽  
Li Shi ◽  
Xue Jiang ◽  
Ke Li ◽  
...  

Curcumin is the main secondary metabolite of Curcuma longa and other Curcuma spp, and has been reported to have some potential in preventing and treating some physiological disorders. This study investigated the effect of curcumin in inhibiting high-fat diet and streptozotocin (STZ)-induced hyperglycemia and hyperlipidemia in rats. Twenty-six male Sprague-Dawley (SD) rats (170–190 g) were randomly divided into a standard food pellet diet group (Control group), a high-fat diet and streptozotocin group (HF + STZ group), and a high-fat diet combined with curcumin and STZ group (HF + Cur + STZ group). Compared with the HF + STZ group, the HF + Cur + STZ group exhibited significantly reduced fasting blood glucose (FBG), total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), alanine aminotransferase (AST), and aspartate transaminase (ALT) levels, as well as liver coefficients. In the livers of these rats, the expression of malondialdehyde (MDA) and Bax was downregulated, whereas that of superoxide dismutase (SOD) and Bcl-2 was upregulated. Moreover, the liver histology of these rats was improved and resembled that of the control rats. These results suggest that curcumin prevents high-fat diet and STZ-induced hyperglycemia and hyperlipidemia, mainly via anti-oxidant and anti-apoptotic mechanisms in the liver.


Author(s):  
Biplav S ◽  
Sindhura G ◽  
Shivalinge Gowda K P

 Objective: The main aim of the present study is concerned with the evaluation of anti-atherosclerotic potential of quercetin in alloxan-induced diabetic rats fed with high-fat diet (HFD).Methods: Atherosclerosis (AS) is the major cause for many of the cardiovascular disease, and it is accelerated in the presence of diabetes mellitus and causes profound alterations in the lipid profile. The method used for the induction of AS was using HFD for 60 days. In this study, rats were divided into four groups (n=6). Group I served as normal control, Group II alloxan (120 mg/kg b.w i.p)-treated diabetic rats, Group III received quercetin (50 mg/ kg b.w p.o), and Group IV received atorvastatin (10 mg/kg b.w p.o) along with alloxan (120 mg/kg b.w i.p) on the 1st day of the days of the study period. AS was induced in Group II, Group III, and Group IV rats by feeding them with HFD from the 1st day to 60th day. The body weight, feed intake was measured daily. The blood was withdrawn from retro-orbital plexus, and the serum was used for the estimation of lipid profile (total cholesterol [TC], triglycerides [TGs], low-density lipoprotein cholesterol [LDL-C], very LDL-C [VLDL-C], and high-density lipoprotein cholesterol [HDL-C]). After scarification under overdose of ketamine, the histopathological study of aorta was carried out.Results: The results showed that the quercetin-treated rats showed a decrease in body weight gain, decreased levels of TC, TGs, LDL-C, and VLDL-C, and increased levels of HDL-C were observed in Group III rats when compared to alloxan-induced diabetic rats fed with HFD (Group III). The histopathological study of aorta showed no development of plaques and of foam cells.Conclusion: From this study, it can be calculated that quercetin has anti-atherosclerotic activity as it significantly altered overall lipid profile in diabetic rats fed with HFD. This activity may be attributed to its antioxidant, inhibition of HMG-CoA reductase activity of quercetin.


Biomolecules ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 165
Author(s):  
Aziza Alrafiah

High-fat diet (HFD) is a major problem causing neuronal damage. Thymoquinone (TQ) could regulate oxidative stress and the inflammatory process. Hence, the present study elucidated the significant role of TQ on oxidative stress, inflammation, as well as morphological changes in the cerebellum of rats with HFD. Rats were divided into three groups as (1) control, (2) saturated HFD for eight weeks and (3) HFD supplementation (four weeks) followed by TQ 300 mg/kg/day treated (four weeks). After treatment, blood samples were collected to measure oxidative stress markers glutathione (GSH), malondialdehyde (MDA), superoxide dismutase (SOD), and inflammatory cytokines. Furthermore, neuronal morphological changes were also observed in the cerebellum of the rats. HFD rats show higher body weight (286.5 ± 7.4 g) as compared with the control group (224.67 ± 1.78 g). TQ treatment significantly (p < 0.05) lowered the body weight (225.83 ± 13.15 g). TQ produced a significant (p < 0.05) reduction in cholesterol, triglycerides, high-density lipoprotein (HDL), and low-density lipoprotein (LDL). The antioxidative enzymes significantly reduced in HFD rats (GSH, 1.46 ± 0.36 mol/L and SOD, 99.13 ± 5.41 µmol/mL) as compared with the control group (GSH, 6.25 ± 0.36 mol/L and SOD, 159.67 ± 10.67 µmol/mL). MDA was increased significantly in HFD rats (2.05 ± 0.25 nmol/L) compared to the control group (0.695 ± 0.11 nmol/L). Surprisingly, treatment with TQ could improve the level of GSH, MDA, and SOD. TQ treatment significantly (p < 0.05) reduced the inflammatory markers as compared with HFD alone. TQ treatment minimizes neuronal damage as well as reduces inflammation and improves antioxidant enzymes. TQ can be considered as a promising agent in preventing the neuronal morphological changes in the cerebellum of obese populations.


Author(s):  
Jude Nwaogu ◽  
Ibrahim Babangida Abubakar ◽  
Chizoba Maria Udeze ◽  
Ukperoro Uyoyo Jeremiah

Background: Obesity, a metabolic disorder caused by an imbalance in energy intake and energy expenditure, is a major risk factor for chronic diseases such as type 2 diabetes, hypertension, cardiovascular heart diseases (CHD) and some types of cancer. This research was designed to investigate the effect of antioxidant rich- nutraceuticals in the management of high fat diet-induced obesity in rats. Method: Induction of obesity was achieved by feeding rats with a formulated high fat diet (HFD) for ten (10) weeks. Rats were subsequently group administered 250mg/kg body weight and 500mg/kg body weight of the nutraceutical respectively while apple cider vinegar of 5ml/kg body weight was administered to the standard group.        Result: Supplementation showed significant (P<0.05) decrease in the glucose, total cholesterol, triglyceride, low density lipoprotein- cholesterol, malondialdehyde and increased in high density lipoprotein-cholesterol and antioxidant status as compared with untreated high fat diet groups. However, there was no significant difference between supplementation of 500mg/kg and the standard group treated with 5ml/kg of Apple cider vinegar. Conclusion: Antioxidant rich nutraceuticals could provide a protective effect against oxidative stress in obesity and remedy complications associated with obesity by reversing the damage to near normal.


Author(s):  
Ge Song ◽  
Wentao Qi ◽  
Yong Wang ◽  
Shaojie Pang ◽  
Yong Li

Aims: To study the metabolic effects of fructose, glucose and saccharose in a moderate dose by analyzing changes of blood indicators, pancreas inflammation, liver fat accumulation and intestinal microbiota in normal Sprague-Dawley (SD) rats. Subjects and methods: Six-week-old rats were assigned to four groups (n = 10), which were gavaged with normalsaline (Con), glucose dissolved in normal saline (Glu), saccharose-glucose dissolved in normal saline (Sac), and fructose dissolved in normal saline (Fru) for 20 weeks. Results: No significant differences in body weight and blood parameters including total cholesterol (TC), total triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), lipase (LPS) and free fatty acid (FFA) among the Con, Glu, Sac and the Fru group. The fructose can significantly (P < 0.05) decrease fasting and postprandial blood glucose increase compared to glucose, and the risk of pancreas inflammation and liver fat accumulation induced by fructose is lower than glucose in rats. We found there were no significant differences in intestinal microbial diversity. At the family level, rats in the Glu group had a relatively higher abundance of Peptostreptococcaceae and rats in the Fru group had a relatively higher abundance of Bacteroidaceae. Moreover, the proportions of Peptostreptococcaceae romboutsia and Staphylococcus lentus in the Glu group were significantly higher than in the Fru group, while the proportions of Lachnospira; Lachnospiraceae blautia, Bacteroides and Cellulosilyticus in the Fru group were significantly higher than in the Glu group. The concentration of isobutyric acid was relatively lower in all the sugar treated groups than in the Con. A significant decrease in isobutyric acid was found on comparing the Fru group to the Con group (P < 0.05). Conclusion: Fructose, glucose and sucrose made no significant changes on rats in body weight, blood indicators, organ index and bacterial diversity. Moreover, fructose can potentially attenuate fasting and postprandial blood-glucose increase, pancreas inflammation and liver-fat accumulation when compared to glucose in mild doses. The relative abundance of six kinds of bacterial genera was found significantly different between rats fed on fructose and glucose.


2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Seung Hwan Hwang ◽  
Il-Jun Kang ◽  
Soon Sung Lim

The objective of the present study was to evaluateα-glucosidase inhibitory and antidiabetic effects of Nopal water extract (NPWE) and Nopal dry power (NADP) in low-dose streptozotocin- (STZ-) induced diabetic rats fed a high-fat diet (HFD). The type 2 diabetic rat model was induced by HFD and low-dose STZ. The rats were divided into four groups as follows: (1) nondiabetic rats fed a regular diet (RD-Control); (2) low-dose STZ-induced diabetic rats fed HFD (HF-STZ-Control); (3) low-dose STZ-induced diabetic rats fed HFD and supplemented with NPWE (100 mg/kg body weight, HF-STZ-NPWE); and (4) low-dose STZ-induced diabetic rats fed HFD and supplemented with comparison medication (rosiglitazone, 10 mg/kg, body weight, HF-STZ-Rosiglitazone). In results, NPWE and NADP had IC50values of 67.33 and 86.68 μg/mL, both of which exhibit inhibitory activities but lower than that of acarbose (38.05 μg/mL) while NPWE group significantly decreased blood glucose levels compared to control and NPDP group on glucose tolerance in the high-fat diet fed rats model (P<0.05). Also, the blood glucose levels of HR-STZ-NPWE group were significantly lower (P<0.05) than HR-STZ-Control group on low-dose STZ-induced diabetic rats fed HFD. Based on these findings, we suggested that NPWE could be considered for the prevention and/or treatment of blood glucose and a potential use as a dietary supplement.


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