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Alzoubi KH, Khabour OF, Al-Awad RM, Aburashed ZO. Every-other day fasting prevents memory impairment induced by high fat-diet: Role of oxidative stress. Physiol Behav 2021; 229:113263. [PMID: 33246002 DOI: 10.1016/j.physbeh.2020.113263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 11/10/2020] [Accepted: 11/21/2020] [Indexed: 01/11/2023]
Abstract
Imbalance of diet consumption results in memory and learning deterioration. High-fat diet (HFD) causes neuronal damage and eventually cognitive impairment, which can be related to increasing oxidative stress in the brain. Using the every other day fasting (EODF) paradigm, as a method of dietary restriction is thought to provide protection of learning and memory in several experimental studies. In the current work, the preventive effect of EODF paradigm on memory impairment-induced by HFD was investigated. Adult male Wistar rats were fed with HFD using the EODF paradigm for six weeks. At the end of these six weeks, and while the previous treatment were continued, rats were examined for learning and memory (both the short-term and the long-term memory) using the radial arm water maze (RAWM). Oxidative stress in the brain, namely in the hippocampus was also assessed. Chronic administration of HFD induced impairment in both, short- and long- term memory that was prevented using EODF paradigm. Furthermore, EODF prevented HFD-induced decrease in the activities of the antioxidant enzymes, SOD and catalase along with reduction of glutathione (GSH) level and the ratio of reduced glutathione/oxidized glutathione (GSH/GSSG ratio). The EODF also inhibited rise in oxidized glutathione (GSSG) and thiobarbituric acid reactive substances (TBARS) seen with HFD. In conclusion, EODF ameliorated oxidative stress and memory impairment induced by chronic HFD. This probably, can be explained by the ability of EODF to normalize mechanisms involved in oxidative stress in the hippocampus.
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Affiliation(s)
- Karem H Alzoubi
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan.
| | - Omar F Khabour
- Department of Medical Laboratory Sciences, Jordan University of Science and Technology, Irbid, Jordan
| | - Rafat M Al-Awad
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Zainah O Aburashed
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
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Tong XK, Trigiani LJ, Hamel E. High cholesterol triggers white matter alterations and cognitive deficits in a mouse model of cerebrovascular disease: benefits of simvastatin. Cell Death Dis 2019; 10:89. [PMID: 30692517 PMCID: PMC6349936 DOI: 10.1038/s41419-018-1199-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 10/19/2018] [Accepted: 10/25/2018] [Indexed: 12/17/2022]
Abstract
Transgenic mice overexpressing transforming growth factor-β1 (TGF mice) display impaired cerebrovascular reactivity, cerebral hypoperfusion and neurovascular uncoupling, but no overt cognitive deficits until old age. Cardiovascular diseases are a major risk factor for vascular cognitive impairment and dementia (VCID). We investigated the impact of a high cholesterol diet (HCD) on cerebrovascular and cognitive function in adult (6 months) and aged (12 months) TGF mice, together with the potential benefit of simvastatin (SV), an anti-cholesterol drug with pleiotropic effects, in adult mice. HCD increased blood, but not brain, cholesterol levels in treated mice, which SV did not reduce. In WT mice, HCD induced small, albeit significant, impairment in endothelium-dependent dilatory function. In TGF mice, HCD worsened the established brain vessel dilatory dysfunction in an age-dependent manner and increased the number of string vessels in the white matter (WM), alterations respectively normalized and significantly countered by SV. HCD triggered cognitive decline only in TGF mice at both ages, a deficit prevented by SV. Concurrently, HCD upregulated galectin−3 immunoreactivity in WM microglial cells, a response significantly reduced in SV-treated TGF mice. Grey matter astrogliosis and microgliosis were not affected by HCD or SV. In the subventricular zone of adult HCD-treated TGF mice, SV promoted oligogenesis and migration of oligodendrocyte progenitor cells. The results demonstrate that an underlying cerebrovascular pathology increases vulnerability to cognitive failure when combined to another risk factor for dementia, and that WM alterations are associated with this loss of function. The results further indicate that myelin repair mechanisms, as triggered by SV, may bear promise in preventing or delaying cognitive decline related to VCID.
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Affiliation(s)
- Xin-Kang Tong
- Laboratory of Cerebrovascular Research, Montreal Neurological Institute, McGill University, 3801 University Street, Montréal, H3A 2B4, QC, Canada
| | - Lianne J Trigiani
- Laboratory of Cerebrovascular Research, Montreal Neurological Institute, McGill University, 3801 University Street, Montréal, H3A 2B4, QC, Canada
| | - Edith Hamel
- Laboratory of Cerebrovascular Research, Montreal Neurological Institute, McGill University, 3801 University Street, Montréal, H3A 2B4, QC, Canada.
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Alzoubi KH, Hasan ZA, Khabour OF, Mayyas FA, Al Yacoub ON, Banihani SA, Azab MA, Alrabadi N. The effect of high-fat diet on seizure threshold in rats: Role of oxidative stress. Physiol Behav 2018; 196:1-7. [DOI: 10.1016/j.physbeh.2018.08.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 06/21/2018] [Accepted: 08/23/2018] [Indexed: 02/06/2023]
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Subramani S, Banu Hedyathullah Khan H, Palanivelu S, Thiruvaiyaru Panchanadham S. Restorative Effect of Semecarpus Anacardium on Altered Energy Metabolism in Type-2 Diabetes Mellitus-Induced Cardiac Dysfunction in Rats. J Diet Suppl 2018; 17:27-40. [PMID: 30373482 DOI: 10.1080/19390211.2018.1481484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Semecarpus anacardium is an important herbal drug that has been used against various ailments. To evaluate the cardioprotective effect of the drug against altered cardiac energy metabolism in type-2 diabetes rats, type-2 diabetes was induced in rats by feeding them with a high-fat diet for 2 weeks followed by intraperitoneal injection of streptozotocin (STZ) 35 mg/kg body weight twice 24 h apart and left for 12 weeks to develop cardiovascular complication. The effects of the nut milk extract on the glucose metabolizing enzymes and mitochondrial complex enzymes were studied using biochemical assays. The drug effectively ameliorated the alteration in cardiac energy metabolism in diabetic rats. The cardioprotective effect may be mediated through the ability of the drug to enhance glucose utilization and control the oxidative stress under diabetic conditions.
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Affiliation(s)
- Suganthi Subramani
- Department of Biochemistry, Bhaktavatchalam College for Women, Chennai, India
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Li J, Yan Y, Li D, Li X, Lin X, Liu Z, Xu T, Du F. Nephroprotective effects of diacylglycerol on diabetic nephropathy in type 2 diabetic rats. Exp Ther Med 2018; 15:1918-1926. [PMID: 29434785 PMCID: PMC5776634 DOI: 10.3892/etm.2017.5654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 03/31/2017] [Indexed: 01/24/2023] Open
Abstract
Diacylglycerol (DAG) has been reported to reduce the serum lipid and glucose levels more effectively compared with triacylglycerol (TAG). The present study examined the long-term effects of dietary DAG on rats with type 2 diabetic nephropathy (DN). The type 2 DN model was established by administering a high-fat and high-calorie diet along with an intraperitoneal injection of 35 mg/kg body weight streptozocin, and the disease developed over the following 8 weeks. Sprague-Dawley rats were then randomly divided into the control, TAG, low-dose DAG (Low-DAG) and high-dose DAG (High-DAG) groups. Blood glucose (BG), lipid levels and renal function parameters were then measured. The results revealed that the body weight in the High-DAG group was significantly reduced compared with the TAG group, while there was no significant difference in the food intake between TAG and DAG groups. BG, advanced glycation end products (AGEs), TAG, low-density lipoprotein cholesterol, urine protein and urine albumin levels were significantly reduced, while high-density lipoprotein cholesterol levels were significantly increased in the two DAG groups. In addition, hematoxylin-eosin stained glomeruli presented decreased glomerular enlargement and mesangial expansion in the DAG groups. Immunohistochemical detection revealed that the levels of transforming growth factor-β1 and connective tissue growth factor in renal tissues of the DAG groups were also significantly reduced compared with the TAG group. These findings indicate that DAG oils can significantly reduce BG levels and the deposition of AGEs in renal tissue, as well as regulate the levels of transforming growth factor-β1 and connective tissue growth factor, thus delaying the progression of nephropathy.
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Affiliation(s)
- Jianpeng Li
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Science/Shandong Provincial Key Laboratory of Agricultural Products Deep Processing, Jinan, Shandong 250100, P.R. China
| | - Yongheng Yan
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Science/Shandong Provincial Key Laboratory of Agricultural Products Deep Processing, Jinan, Shandong 250100, P.R. China
| | - Duo Li
- Food Science and Nutrition Department, Zhejiang University, Hangzhou, Zhejiang 310029, P.R. China
| | - Xia Li
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Science/Shandong Provincial Key Laboratory of Agricultural Products Deep Processing, Jinan, Shandong 250100, P.R. China
| | - Xinying Lin
- School of Public Health, Shandong University School of Medicine, Jinan, Shandong 250012, P.R. China
| | - Zhenhua Liu
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Science/Shandong Provincial Key Laboratory of Agricultural Products Deep Processing, Jinan, Shandong 250100, P.R. China.,School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA 01003, USA
| | - Tongcheng Xu
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Science/Shandong Provincial Key Laboratory of Agricultural Products Deep Processing, Jinan, Shandong 250100, P.R. China
| | - Fangling Du
- Institute of Agro-Food Science and Technology, Shandong Academy of Agricultural Science/Shandong Provincial Key Laboratory of Agricultural Products Deep Processing, Jinan, Shandong 250100, P.R. China
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Alzoubi KH, Mayyas FA, Mahafzah R, Khabour OF. Melatonin prevents memory impairment induced by high-fat diet: Role of oxidative stress. Behav Brain Res 2017; 336:93-98. [PMID: 28866128 DOI: 10.1016/j.bbr.2017.08.047] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 08/12/2017] [Accepted: 08/29/2017] [Indexed: 12/22/2022]
Abstract
Consumption of high-fat diet (HFD) induces oxidative stress in the hippocampus that leads to memory impairment. Melatonin has antioxidant and neuroprotective effects. In this study, we hypothesized that chronic administration of melatonin can prevent memory impairment induced by consumption of HFD. Melatonin was administered to rats via oral gavage (100mg/kg/day) for 4 weeks. HFD was also instituted for the same duration. Behavioral studies were conducted to test spatial memory using the radial arm water maze. Additionally, oxidative stress biomarkers were assessed in the hippocampus. Results showed that HFD impaired both short- and long- term memory (P<0.05), while melatonin treatment prevented such effects. Furthermore, melatonin prevented HFD-induced reduction in levels of GSH, and ratio of GSH/GSSG, and increase in GSSG in the hippocampus. Melatonin also prevented reduction in the catalase activity in hippocampus of animals on HFD. In conclusion, HFD induced memory impairment and melatonin prevented this impairment probably by preventing alteration of oxidative stress in the hippocampus.
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Affiliation(s)
- Karem H Alzoubi
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan.
| | - Fadia A Mayyas
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Rania Mahafzah
- Department of Clinical Pharmacy, Faculty of Pharmacy, Jordan University of Science and Technology, Irbid, Jordan
| | - Omar F Khabour
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, Jordan University of Science and Technology, Irbid, Jordan
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Moradkhani S, Salehi I, Abdolmaleki S, Komaki A. Effect of Calendula officinalis hydroalcoholic extract on passive avoidance learning and memory in streptozotocin-induced diabetic rats. Anc Sci Life 2015; 34:156-61. [PMID: 26120230 PMCID: PMC4458906 DOI: 10.4103/0257-7941.157160] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Medicinal plants, owing to their different mechanisms such as antioxidants effects, may improve learning and memory impairments in diabetic rats. Calendula officinalis (CO), has a significant antioxidant activity. AIMS To examine the effect of hydroalcoholic extract of CO on passive avoidance learning (PAL) and memory in streptozotocin (STZ)-induced diabetic male rats. SETTINGS AND DESIGN A total of 32 adult male Wistar rats were randomly allocated to four groups: Control, diabetic, control + extract of CO and diabetic control + extract of CO groups with free access to regular rat diet. SUBJECTS AND METHODS Diabetes in diabetic rats was induced by single intraperitoneal injection of 60 mg/kg STZ. After confirmation of diabetes, oral administration of 300 mg/kg CO extract to extract-treated groups have been done. PAL was tested 8 weeks after onset of treatment, and blood glucose and body weight were measured in all groups at the beginning and end of the experiment. STATISTICAL ANALYSIS USED The statistical analysis of data was performed by ANOVA followed by least significant difference post-hoc analysis. RESULTS Diabetes decreased learning and memory. Effect of CO extract in retention test (after 24 and 48 h) has been shown a significant decrease in step-through latency and increase in time spent in the dark compartment part. Also the extract partially improved hyperglycemia and reduced body weight. CONCLUSION Taken together, CO extract can improve PAL and memory impairments in STZ-diabetic rats. This improvement may be due to its antioxidant, anticholinergic activities or its power to reduce hyperglycemia.
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Affiliation(s)
- Shirin Moradkhani
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran ; Department of Pharmacognosy and Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Iraj Salehi
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Somayeh Abdolmaleki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Alireza Komaki
- Neurophysiology Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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Hegazy AM, Azeem ASA, Shahy EM, El-Sayed EM. Comparative study of cholinergic and oxidative stress biomarkers in brains of diabetic and hypercholesterolemic rats. Hum Exp Toxicol 2015; 35:251-8. [DOI: 10.1177/0960327115583361] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Objective: Diabetes mellitus (DM) and hypercholesterolemia (HC) when poorly controlled lead to debilitating central nervous system complications including cognitive deficits and memory impairment. In the present study, we investigated the mechanisms that may be responsible for such deficits. Methods: Both diabetes and HC were induced in two groups of rats independently using alloxan and high cholesterol diet, respectively. Results: Acetyl cholinesterase was significantly increased in brain of diabetic rats. Also, brain malondialdehyde level was extremely elevated in both diabetic and hypercholesterolemic groups. Meanwhile, brain albumin was markedly decreased in both of them. However, the brain iron level was significantly increased in DM with concomitant increase in total antioxidant capacity in the same group as compared to the normal control. The concentration of brain calcium was noticeably increased in HC group. Our results were confirmed by the increased activity of lactate dehydrogenase in both DM and HC groups, indicating major brain cytotoxicity. Conclusions: Overall, our results suggested that both DM and HC have deleterious effects on the brain which may be attributed to oxidative stress and dysregulation of both cholinergic function and calcium level. Administration of antioxidant is recommended in both cases.
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Affiliation(s)
- AM Hegazy
- Department of Nutrition and Food Sciences, National Research Centre, Dokki, Cairo, Egypt
| | - AS Abdel Azeem
- Department of Nutrition and Food Sciences, National Research Centre, Dokki, Cairo, Egypt
| | - EM Shahy
- Department of Environmental and Occupational Medicine, National Research Centre, Dokki, Cairo, Egypt
| | - EM El-Sayed
- Department of Nutrition and Food Sciences, National Research Centre, Dokki, Cairo, Egypt
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Salehi I, Taheraslani Z, Moradkhani S. Hydro-alcoholic Extract of Commiphora mukul Gum Resin May Improve Cognitive Impairments in Diabetic Rats. AVICENNA JOURNAL OF MEDICAL BIOCHEMISTRY 2015. [DOI: 10.17795/ajmb-24906] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Subramaniam S, Hedayathullah Khan HB, G G, Palanvelu S, Tiruvaiyaru Panchanadham S. Effect of Semecaprus anacardiumon Diabetes-Induced Alterations in the Activities of Marker Enzymes and Antioxidant Enzymes in Type 2 Diabetes Induced Cardiac Vascular Damage Model in Rats. J Diet Suppl 2014; 11:347-60. [DOI: 10.3109/19390211.2013.859219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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11
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Alzoubi KH, Khabour OF, Salah HA, Hasan Z. Vitamin E prevents high-fat high-carbohydrates diet-induced memory impairment: The role of oxidative stress. Physiol Behav 2013; 119:72-8. [DOI: 10.1016/j.physbeh.2013.06.011] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2013] [Accepted: 06/05/2013] [Indexed: 02/08/2023]
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Pandey R, Kumar N, Paroha S, Prasad R, Yadav M, Jain S, Yadav H. Impact of obesity and diabetes on arthritis: An update. Health (London) 2013; 5:143-156. [PMID: 30595811 PMCID: PMC6309558 DOI: 10.4236/health.2013.51019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The incidence of obesity and diabetes has been increased with alarming rate in recent years and became a common problem around the globe including developing as well as in developed countries with incalculable social costs. Obesity and type 2 diabetes are two common co-morbidities occur together. Obesity and diabetes is closely associated with many diseases, osteoarthritis, hypertension, certain form of cancer, sleep-breathing disorders and coronary heart disease. Impacts of obesity and diabetes (insulin resistance) on arthritis have been seen in patients that we associated with combination of various factors like increased availability of high- energy foods, genetic susceptibility and decreased physical activity in modern society. Arthritis is becoming pandemic around the globe and its occurrence with obesity and diabetes has been observed more common than ever. Combination of these two chronic conditions makes these diseases more vulnerable for human health. Till now very limited information is established about the pathological and mechanistic correlation among these health ailments. In this review article we aimed to survey the literature covering the influence of obesity and diabetes on arthritis pathology and tried to establish correlation with these diseases.
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Affiliation(s)
- Rajesh Pandey
- Department of Biochemistry, Awadhesh Pratap Singh University, Rewa, India
| | - Narendra Kumar
- Department of Biotechnology, IMS Engineering College, Ghaziabad, India
| | - Seema Paroha
- Department of Biochemistry, Jawaharlal Nehru Agriculture University, Jabalpur, India
| | - Ram Prasad
- Amity Institute of Microbial Technology, Amity University, Noida, India
| | | | - Shalini Jain
- NIDDK, National Institutes of Health, Bethesda, USA
| | - Hariom Yadav
- NIDDK, National Institutes of Health, Bethesda, USA
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Ameliorating effect of Semecarpus anacardium Linn. nut milk extract on altered glucose metabolism in high fat diet STZ induced type 2 diabetic rats. ASIAN PAC J TROP MED 2012. [DOI: 10.1016/s1995-7645(12)60181-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Alzoubi KH, Khabour OF, Salah HA, Abu Rashid BE. The Combined Effect of Sleep Deprivation and Western Diet on Spatial Learning and Memory: Role of BDNF and Oxidative Stress. J Mol Neurosci 2012; 50:124-33. [DOI: 10.1007/s12031-012-9881-7] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2012] [Accepted: 08/26/2012] [Indexed: 01/02/2023]
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Potential antidiabetic effect of the Semecarpus anacardium in a type 2 diabetic rat model. Inflammopharmacology 2012; 21:47-53. [PMID: 22556061 DOI: 10.1007/s10787-012-0136-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2011] [Accepted: 04/03/2012] [Indexed: 10/28/2022]
Abstract
Semecarpus anacardium Linn. nut milk extract (SA) was evaluated for its antidiabetic role in type 2 diabetic rats. Type 2 diabetes was induced in rats by feeding high-fat diet for 2 weeks followed by single intraperitoneal injection of streptozotocin 35 mg/kg body weight. Diabetic rats were treated with SA orally at a dosage of 200 mg/kg body weight daily for 30 days. Metformin (500 mg/kg body weight, orally) was used as a reference drug. SA significantly (p < 0.05) reduced the blood glucose levels and decreased the levels of HbA1c and the glucose intolerance. SA treatment significantly (p < 0.05) decreased the increase in lipid profile. The levels of urea, uric acid and creatinine were restored to near normal levels when compared with control diabetic rats. The histopathological abnormalities were also found to be normalized after treatment with SA nut milk extract. The potential antihyperglycemic action of SA is plausibly due to its underlying antioxidant role.
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Khan HBH, Vinayagam KS, Sekar A, Palanivelu S, Panchanadham S. Antidiabetic and antioxidant effect of Semecarpus anacardium Linn. nut milk extract in a high-fat diet STZ-induced type 2 diabetic rat model. J Diet Suppl 2012; 9:19-33. [PMID: 22432800 DOI: 10.3109/19390211.2011.631099] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Semecarpus anacardium commonly known as marking nut has been used in the Siddha system of medicine against various ailments. The antidiabetic and antioxidant potential of the drug was evaluated in Type 2 diabetic rats induced by feeding a high-fat diet (HFD) for 2 weeks followed by single intraperitoneal injection of streptozotocin (STZ) 35 mg/kg body weight. Three days after STZ induction, the hyperglycemic rats were treated with Semecarpus anacardium nut milk extract (SA) orally at a dosage of 200 mg/kg body weight daily for 30 days. Metformin (500 mg/kg body weight, orally) was used as a reference drug. The fasting blood glucose, insulin, Hb, HbA1c levels, and HOMA-IR and HOMA-β were measured, and also the levels of lipid peroxidation and antioxidant enzymes were observed. SA significantly (p < .05) reduced and normalized blood glucose levels and also decreased the levels of HbA1c as compared with that of HFD STZ control group. SA treatment also significantly (p < .05) increased the levels of antioxidant enzymes while decreasing the levels of lipid peroxidation. The potential antihyperglycemic action and antioxidant role might be due to the presence of flavonoids in the drug.
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Anti-inflammatory and anti-hyperlipidemic effect of Semecarpus anacardium in a High fat diet: STZ-induced Type 2 diabetic rat model. Inflammopharmacology 2012; 21:37-46. [DOI: 10.1007/s10787-011-0109-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2011] [Accepted: 12/12/2011] [Indexed: 01/04/2023]
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Xie W, Gu D, Li J, Cui K, Zhang Y. Effects and action mechanisms of berberine and Rhizoma coptidis on gut microbes and obesity in high-fat diet-fed C57BL/6J mice. PLoS One 2011; 6:e24520. [PMID: 21915347 PMCID: PMC3167861 DOI: 10.1371/journal.pone.0024520] [Citation(s) in RCA: 136] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Accepted: 08/12/2011] [Indexed: 01/01/2023] Open
Abstract
Gut microbes play important roles in regulating fat storage and metabolism. Rhizoma coptidis (RC) and its main active compound, berberine, have either antimicrobial or anti-obesity activities. In the present study, we hypothesize that RC exerts anti-obesity effects that are likely mediated by mechanisms of regulating gut microbes and berberine may be a key compound of RC. Gut microbes and glucose and lipid metabolism in high-fat diet-fed C57BL/6J (HFD) mice in vivo are investigated after RC and berberine treatments. The results show that RC (200 mg/kg) and berberine (200 mg/kg) significantly lower both body and visceral adipose weights, and reduce blood glucose and lipid levels, and decrease degradation of dietary polysaccharides in HFD mice. Both RC and berberine significantly reduce the proportions of fecal Firmicutes and Bacteroidetes to total bacteria in HFD mice. In the trial ex vivo, both RC and berberine significantly inhibit the growth of gut bacteria under aerobic and anaerobic conditions. In in vitro trials, both RC and berberine significantly inhibit the growth of Lactobacillus (a classical type of Firmicutes) under anaerobic conditions. Furthermore, both RC and berberine significantly increase fasting-induced adipose factor (Fiaf, a key protein negatively regulated by intestinal microbes) expressions in either intestinal or visceral adipose tissues. Both RC and berberine significantly increase mRNA expressions of AMPK, PGC1α, UCP2, CPT1α, and Hadhb related to mitochondrial energy metabolism, which may be driven by increased Fiaf expression. These results firstly suggest that antimicrobial activities of RC and berberine may result in decreasing degradation of dietary polysaccharides, lowering potential calorie intake, and then systemically activating Fiaf protein and related gene expressions of mitochondrial energy metabolism in visceral adipose tissues. Taken together, these action mechanisms may contribute to significant anti-obesity effects. Findings in the present study also indicate that pharmacological regulation on gut microbes can develop an anti-obesity strategy.
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Affiliation(s)
- Weidong Xie
- Life Science Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
| | - Dayong Gu
- Institute of Disease Control and Prevention, Shenzhen International Travel Health Care Center, Shenzhen Entry-Exit Inspection and Quarantine Bureau, Shenzhen, China
| | - Jianna Li
- Life Science Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
| | - Kai Cui
- Life Science Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
| | - Yaou Zhang
- Life Science Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
- * E-mail:
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Khan HBH, Vinayagam KS, Palanivelu S, Panchanatham S. Anti-diabetic effect of Semecarpus anacardium Linn nut milk extract in a high fat diet STZ-induced type 2 diabetic rat model. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s00580-011-1305-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Traditional chinese medicines in treatment of patients with type 2 diabetes mellitus. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2011; 2011:726723. [PMID: 21584252 PMCID: PMC3092648 DOI: 10.1155/2011/726723] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2010] [Revised: 12/16/2010] [Accepted: 01/19/2011] [Indexed: 02/02/2023]
Abstract
Type 2 diabetes mellitus (T2DM) occurs in 95% of the diabetic populations. Management of T2DM is a challenge. Traditional Chinese medicines (TCM) are usually served as adjuvants used to improve diabetic syndromes in combination of routine antidiabetic drugs. For single-herb prescriptions, Ginseng, Bitter melon, Golden Thread, Fenugreek, Garlic, and Cinnamon might have antidiabetic effects in T2DM patients. Among 30 antidiabetic formulas approved by the State Food and Drugs Administrator of China, top 10 of the most frequently prescribed herbs are Membranous Milkvetch Root, Rehmannia Root, Mongolian Snakegourd Root, Ginseng, Chinese Magnoliavine Fruit, Kudzuvine Root, Dwarf Lilyturf Tuber, Common Anemarrhena Rhizome, Barbary Wolfberry Fruit, and India Bread, which mainly guided by the theory of TCM. Their action mechanisms are related to improve insulin sensitivity, stimulate insulin secretion, protect pancreatic islets, and even inhibit intake of intestinal carbohydrates. However, it is very difficult to determine antihyperglycemic components of TCM. Nevertheless, TCM are becoming popular complementary and alternative medicine in treatment of syndromes of T2DM. In the future, it requires further validation of phytochemical, pharmacological, and clinical natures of TCM in T2DM in the future studies, especially for those herbs with a high prescription frequency.
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Burdo JR, Chen Q, Calcutt NA, Schubert D. The pathological interaction between diabetes and presymptomatic Alzheimer's disease. Neurobiol Aging 2008; 30:1910-7. [PMID: 18372080 DOI: 10.1016/j.neurobiolaging.2008.02.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2007] [Revised: 01/29/2008] [Accepted: 02/19/2008] [Indexed: 10/22/2022]
Abstract
Since diabetes is a risk factor for Alzheimer's disease (AD), we asked if there is a functional interaction between high glucose and elevated beta amyloid peptide (Abeta) in cultured brain microvascular endothelial cells and presymptomatic AD transgenic mice. When cultured brain microvascular endothelial cells are exposed to both high glucose and low levels of Abeta, there is a synergistic interaction to cause an increased accumulation of advanced glycation products (AGE) and reactive oxygen species (ROS). When presymptomatic mice expressing mutant human amyloid precursor protein and presenilin are made diabetic, they have a decrease in cognitive function relative to control mice. Associated with the cognitive deficit are increases in brain microvascular AGE and iNOS expression, and the loss of the synaptic spine protein drebrin. No amyloid plaques or tangles are observed within the brains of any group. These data show that diabetes causes a synergistic potentiation of some indices of AD in transgenic animals that are presymptomatic for the classical features of the disease.
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Affiliation(s)
- Joseph R Burdo
- Cellular Neurobiology Laboratory, The Salk Institute For Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037-1099, USA.
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Xie W, Wang W, Su H, Xing D, Cai G, Du L. Hypolipidemic Mechanisms of Ananas comosus L. Leaves in Mice: Different From Fibrates but Similar to Statins. J Pharmacol Sci 2007; 103:267-74. [PMID: 17380035 DOI: 10.1254/jphs.fp0061244] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
In this study, we investigated hypolipidemic mechanisms of the ethanolic extract of Ananas comosus L. leaves (AC) in mice and then determined its activities in related enzymes. The results showed that AC (0.40 g/kg) significantly inhibited the increase in serum triglycerides by 40% in fructose-fed mice. In mice induced by alloxan and high-fat diets, serum total cholesterol remained at a high level (180 - 220 mg/dl) within 7 days of removing high-fat diets but reached normal level (120 - 140 mg/dl) after AC (0.40 g/kg per day) treatment. Also, AC (0.40 and 0.80 g/kg) significantly inhibited serum lipids from the increase in Triton WR-1339-induced hyperlipidemic mice. AC (0.01 - 100 microg/ml) selectively activated lipoprotein lipase (LPL) activity by 200% - 400% and significantly inhibited 3-hydroxyl-methyl glutaryl coenzyme A (HMGCoA) reductase activity by 20% - 49% in vitro. Furthermore, 2 months of fenofibrate (0.20 g/kg) administration particularly increased mice liver weights (0.0760 +/- 0.0110 g/g) while AC (0.40 g/kg) had no effect (0.0403 +/- 0.0047). Taken together, these results suggest that AC will be a new potential natural product for the treatment of hyperlipidemia that exerts its actions through mechanisms of inhibiting HMGCoA reductase and activating LPL activities. Its action mechanisms differentiate from those with fibrates but may be partly similar to those with statins. It is hopeful that AC may serve as the adjuvant for fibrates.
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Affiliation(s)
- Weidong Xie
- Laboratory of Life Sciences & Marine Biology, Life Sciences Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen, China
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Xie W, Wang W, Su H, Xing D, Pan Y, Du L. Effect of ethanolic extracts of Ananas comosus L. leaves on insulin sensitivity in rats and HepG2. Comp Biochem Physiol C Toxicol Pharmacol 2006; 143:429-35. [PMID: 16753349 DOI: 10.1016/j.cbpc.2006.04.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2005] [Revised: 03/20/2006] [Accepted: 04/13/2006] [Indexed: 11/18/2022]
Abstract
Ethanolic extracts of Ananas comosus L. leaves (AC) enriched with phenols have hypoglycemic activity in diabetic rats. Here, we investigated the effect of AC on insulin sensitivity in rats and HepG2. In high-fat diet-fed and low-dose streptozotozin-treated diabetic Wistar rats subjected to challenge with exogenous human insulin, AC treatment at an oral dose of 0.40 g/kg could significantly improve sensitivity to exogenous insulin. After a sub-acute treatment, AC also could inhibit the development of insulin resistance in high-fat diet-fed and low-dose streptozotozin-treated diabetic rats following the test of loss of tolbutamide-induced blood glucose lowering action. For intravenous insulin/glucose infusion test, high-fat diet-fed and low-dose alloxan-treated Wistar rats were associated with insulin resistance, which was improved after AC or fenofibrate treatment. AC application inhibited the development of insulin resistance in HepG2 cells. The above animal models were well developed to simulate type 2 diabetes. Taken together, our results suggest that AC may improve insulin sensitivity in type 2 diabetes and could be developed into a new potential natural product for handling of insulin resistance in diabetic patients.
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Affiliation(s)
- Weidong Xie
- Life Sciences Division, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
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