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Foroumandi E, Javan R, Moayed L, Fahimi H, Kheirabadi F, Neamatshahi M, Shogofteh F, Zarghi A. The effects of fenugreek seed extract supplementation in patients with Alzheimer's disease: A randomized, double-blind, placebo-controlled trial. Phytother Res 2023; 37:285-294. [PMID: 36199177 DOI: 10.1002/ptr.7612] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 08/01/2022] [Accepted: 08/20/2022] [Indexed: 01/19/2023]
Abstract
The aim of the current randomized control trial (RCT) study was to investigate the effects of fenugreek seed extract on memory, depression, quality of life, blood pressure, and serum malondialdehyde (MDA) and total antioxidant capacity (TAC) levels in adult AD patients. This randomized clinical trial was conducted in geriatric homes in Iran. The study participants included 82 AD patients with mild-to-moderate memory deficit. Patients in the intervention group received 5 cc of fenugreek seed extract for 4 months and subjects in the control group received a placebo. Memory, depression, quality of life, and BP levels, as well as serum MDA and TAC, were assessed before and after the intervention. There was a significant increase in serum levels of TAC (p < 0.001) and a reduction in serum MDA status (p < 0.001) after 4 months of fenugreek seed extract supplementation. In addition, increasing levels of memory (p < 0.001) and quality of life (p < 0.001), as well as reduction of depression (p = 0.002), systolic BP (p < 0.001), and diastolic BP (p < 0.001) levels were detected in the intervention group compared with baseline. Fenugreek seed extract supplementation in AD patients shows promising positive effects on memory, quality of life, BP, and selective oxidative indices levels.
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Affiliation(s)
- Elaheh Foroumandi
- Iranian Research Center on Healthy Aging, Sabzevar University of Medical Sciences, Sabzevar, Iran.,Department of Nutrition and Biochemistry, School of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Roghayeh Javan
- Traditional and Complementary Medicine Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Leili Moayed
- M.Sc. Geriatric Nursing, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Hossein Fahimi
- Assistant Professor of Psychiatry, Department of Psychiatry, School of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Fereshteh Kheirabadi
- Rehabilitation Counseling Charity Foundation Mother's Nursing Home, Sabzevar, Iran
| | - Mahboubeh Neamatshahi
- Assistant Professor, Department of Community Medicine, School of Medicine, Sabzevar University of Medical Sciences, Sabzevar, Iran
| | - Fazeleh Shogofteh
- Department of Medical Nursing, School of Beheshti University of Medical Sciences, Tehran, Iran
| | - Azam Zarghi
- M.Sc. in Nursing Care, Non- Communicable Diseases Research Center, Sabzevar University of Medical Sciences, Sabzevar, Iran
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A comparative unit production cost prediction on isomerization by AlCl3 in comparison with HY(30) zeolite for the synthesis of tetrahydro tricyclopentadiene through a two-step process. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0652-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bafadam S, Beheshti F, Khodabakhshi T, Asghari A, Ebrahimi B, Sadeghnia HR, Mahmoudabady M, Niazmand S, Hosseini M. Trigonella foenum-graceum seed (Fenugreek) hydroalcoholic extract improved the oxidative stress status in a rat model of diabetes-induced memory impairment. Horm Mol Biol Clin Investig 2019; 39:/j/hmbci.ahead-of-print/hmbci-2018-0074/hmbci-2018-0074.xml. [DOI: 10.1515/hmbci-2018-0074] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 02/14/2019] [Indexed: 12/31/2022]
Abstract
Abstract
Background
The antidiabetic and antioxidant effects of Trigonella foenum-graceum have been suggested. The effects of hydroalcoholic extract of the plant seeds and metformin against the diabetes-induced memory impairment were investigated.
Materials and methods
The rats were treated: (1) control, (2) diabetic (3–6) and diabetic rats treated by 50, 100 and 200 mg/kg of the plant extract or metformin. The rats were diabetic by streptozotocin (STZ, 55 mg/kg). After the passive avoidance test, malondialdehyde (MDA), nitric oxide (NO) metabolites, total thiol (SH), catalase (CAT) and superoxide dismutase (SOD) were determined in the brain.
Results
In the diabetic group, at 3, 24 and 48 h after receiving a shock, the latency to enter the dark room was lower than for the controls (p < 0.001). All doses of the extract and metformin increased the latencies to enter the dark at 3 and 24 h after the shock treatment (p < 0.05–p < 0.001). Additionally, the two higher doses of the extract and metformin increased the latency at 48 h after the shock (p < 0.05–p < 0.001). Diabetes also elevated MDA and NO metabolites, while it reduced thiol, SOD and CAT in the hippocampal and cortical tissues (p < 0.001). Treatment of the diabetic animals by the highest dose of the extract and also metformin reduced the MDA and NO metabolites, while it improved thiols, SOD and CAT (p < 0.01–p < 0.001).
Conclusions
Based on our findings, metformin and the hydro-alcoholic extract from the T. foenum-graceum seed prevented memory deficits resulting from diabetes. Preventing oxidative damage in the brain may at least, in part, be responsible for the positive effects of the extract and metformin.
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Fenugreek Compound (N55) Lowers Plasma Glucose through the Enhancement of Response of Physiological Glucagon-like peptide-1. Sci Rep 2017; 7:12265. [PMID: 28947828 PMCID: PMC5613011 DOI: 10.1038/s41598-017-12290-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 09/04/2017] [Indexed: 12/01/2022] Open
Abstract
Glucagon-like peptide-1 (GLP-1) receptor (GLP-1R) analogues are approved for treating type 2 diabetes, but are known to activate GLP-1R signaling globally and constitutively. Active compound N55, previously isolated from fenugreek, enhances the potency of GLP-1 without activating GLP-1R. Here we investigated if N55 lowers plasma glucose base on physiological levels of GLP-1. N55 was found to dose-dependently lower plasma glucose in non-fasted mice but not in the fasted mice, with the effect attenuated by GLP-1R antagonist exendin-(9–39) (Ex-9). On the other hand, when co-administered with dipeptidyl peptidase-IV (DPP4) -resistant [Aib8]-GLP-1(7–36) amide (GLP-1′), hypoglycemic response to N55 was observed in the fasted mice. This enhancement was also found to display dose dependency. N55 enhancement of the hypoglycemic and insulinotropic action of GLP-1′ was eliminated upon Ex-9 treatment. Both exendin-4 (Ex-4) and DPP4-resistant GLP-1 mutant peptide ([Aib8, E22, E30]-GLP-1(7–36) amide) activated GLP-1R and improved glucose tolerance but the enhancement effect of N55 was not observed in vivo or in vitro. In conclusions, N55 lowers plasma glucose according to prandial status by enhancing the response of physiological levels of GLP-1 and is much less likely to disrupt tight regulation of GLP-1R signaling as compare to GLP-1 analogues.
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Prema A, Justin Thenmozhi A, Manivasagam T, Mohamed Essa M, Guillemin GJ. Fenugreek Seed Powder Attenuated Aluminum Chloride-Induced Tau Pathology, Oxidative Stress, and Inflammation in a Rat Model of Alzheimer’s Disease. J Alzheimers Dis 2017; 60:S209-S220. [DOI: 10.3233/jad-161103] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Asokan Prema
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India
| | - Arokiasamy Justin Thenmozhi
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India
| | - Thamilarasan Manivasagam
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamilnadu, India
| | - Musthafa Mohamed Essa
- Department of Food Science and Nutrition, CAMS, Sultan Qaboos University, Muscat, Oman
- Ageing and Dementia Research Group, Sultan Qaboos University, Muscat, Oman
- Food and Brain Research Foundation, Chennai, Tamil Nadu, India
| | - Gilles J. Guillemin
- Neuroinflammation group, Faculty of Medicine and Health Sciences, Deb Bailey MND Research Laboratory, Macquarie University, NSW, Australia
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Zameer S, Najmi AK, Vohora D, Akhtar M. A review on therapeutic potentials of Trigonella foenum graecum (fenugreek) and its chemical constituents in neurological disorders: Complementary roles to its hypolipidemic, hypoglycemic, and antioxidant potential. Nutr Neurosci 2017; 21:539-545. [DOI: 10.1080/1028415x.2017.1327200] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Saima Zameer
- Department of Pharmacology, Faculty of Pharmacy, JamiaHamdard (Hamdard University), New Delhi 110062, India
| | - Abul Kalam Najmi
- Department of Pharmacology, Faculty of Pharmacy, JamiaHamdard (Hamdard University), New Delhi 110062, India
| | - Divya Vohora
- Department of Pharmacology, Faculty of Pharmacy, JamiaHamdard (Hamdard University), New Delhi 110062, India
| | - Mohd Akhtar
- Department of Pharmacology, Faculty of Pharmacy, JamiaHamdard (Hamdard University), New Delhi 110062, India
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Wang P, Wang ZY. Metal ions influx is a double edged sword for the pathogenesis of Alzheimer's disease. Ageing Res Rev 2017; 35:265-290. [PMID: 27829171 DOI: 10.1016/j.arr.2016.10.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2016] [Revised: 09/08/2016] [Accepted: 10/17/2016] [Indexed: 12/17/2022]
Abstract
Alzheimer's disease (AD) is a common form of dementia in aged people, which is defined by two pathological characteristics: β-amyloid protein (Aβ) deposition and tau hyperphosphorylation. Although the mechanisms of AD development are still being debated, a series of evidence supports the idea that metals, such as copper, iron, zinc, magnesium and aluminium, are involved in the pathogenesis of the disease. In particular, the processes of Aβ deposition in senile plaques (SP) and the inclusion of phosphorylated tau in neurofibrillary tangles (NFTs) are markedly influenced by alterations in the homeostasis of the aforementioned metal ions. Moreover, the mechanisms of oxidative stress, synaptic plasticity, neurotoxicity, autophagy and apoptosis mediate the effects of metal ions-induced the aggregation state of Aβ and phosphorylated tau on AD development. More importantly, imbalance of these mechanisms finally caused cognitive decline in different experiment models. Collectively, reconstructing the signaling network that regulates AD progression by metal ions may provide novel insights for developing chelators specific for metal ions to combat AD.
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Affiliation(s)
- Pu Wang
- College of Life and Health Sciences, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, PR China.
| | - Zhan-You Wang
- College of Life and Health Sciences, Northeastern University, No. 3-11, Wenhua Road, Shenyang, 110819, PR China.
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Grissa I, Guezguez S, Ezzi L, Chakroun S, Sallem A, Kerkeni E, Elghoul J, El Mir L, Mehdi M, Cheikh HB, Haouas Z. The effect of titanium dioxide nanoparticles on neuroinflammation response in rat brain. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:20205-20213. [PMID: 27443856 DOI: 10.1007/s11356-016-7234-8] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 07/11/2016] [Indexed: 06/06/2023]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are widely used for their whiteness and opacity in several applications such as food colorants, drug additives, biomedical ceramic, and implanted biomaterials. Research on the neurobiological response to orally administered TiO2 NPs is still limited. In our study, we investigate the effects of anatase TiO2 NPs on the brain of Wistar rats after oral intake. After daily intragastric administration of anatase TiO2 NPs (5-10 nm) at 0, 50, 100, and 200 mg/kg body weight (BW) for 60 days, the coefficient of the brain, acethylcholinesterase (AChE) activities, the level of interleukin 6 (IL-6), and the expression of glial fibrillary acidic protein (GFAP) were assessed to quantify the brain damage. The results showed that high-dose anatase TiO2 NPs could induce a downregulated level of AChE activities and showed an increase in plasmatic IL-6 level as compared to the control group accompanied by a dose-dependent decrease inter-doses, associated to an increase in the cerebral IL-6 level as a response to a local inflammation in brain. Furthermore, we observed elevated levels of immunoreactivity to GFAP in rat cerebral cortex. We concluded that oral intake of anatase TiO2 NPs can induce neuroinflammation and could be neurotoxic and hazardous to health.
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Affiliation(s)
- Intissar Grissa
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia.
| | - Sabrine Guezguez
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia
| | - Lobna Ezzi
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia
| | - Sana Chakroun
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia
| | - Amira Sallem
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia
- Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Faculty of Sciences in Gabes, Gabes University, 6072, Gabes, Tunisia
| | - Emna Kerkeni
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia
| | - Jaber Elghoul
- Department of Physics, College of Sciences, Al Imam Mohammad Ibn Saud Islamic University (IMISU), Riyadh, 11623, Saudi Arabia
- Cytogenetic and Reproductive Biology Department, Fattouma Bourguiba Teaching Hospital, Monastir, Tunisia
| | - Lassaad El Mir
- Department of Physics, College of Sciences, Al Imam Mohammad Ibn Saud Islamic University (IMISU), Riyadh, 11623, Saudi Arabia
- Cytogenetic and Reproductive Biology Department, Fattouma Bourguiba Teaching Hospital, Monastir, Tunisia
| | - Meriem Mehdi
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia
- Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Faculty of Sciences in Gabes, Gabes University, 6072, Gabes, Tunisia
| | - Hassen Ben Cheikh
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia
| | - Zohra Haouas
- Laboratory of Histology and Cytogenetics (UR12ES10), Faculty of Medicine, 5019, Monastir, Tunisia
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King K, Lin NP, Cheng YH, Chen GH, Chein RJ. Isolation of Positive Modulator of Glucagon-like Peptide-1 Signaling from Trigonella foenum-graecum (Fenugreek) Seed. J Biol Chem 2015; 290:26235-48. [PMID: 26336108 DOI: 10.1074/jbc.m115.672097] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Indexed: 12/12/2022] Open
Abstract
The glucagon-like peptide-1 receptor (GLP-1R) is expressed in many tissues and has been implicated in diverse physiological functions, such as energy homeostasis and cognition. GLP-1 analogs are approved for treatment of type 2 diabetes and are undergoing clinical trials for other disorders, including neurodegenerative diseases. GLP-1 analog therapies maintain chronically high plasma levels of the analog and can lead to loss of spatiotemporal control of GLP-1R activation. To avoid adverse effects associated with current therapies, we characterized positive modulators of GLP-1R signaling. We screened extracts from edible plants using an intracellular cAMP biosensor and GLP-1R endocytosis assays. Ethanol extracts from fenugreek seeds enhanced GLP-1 signaling. These seeds have previously been found to reduce glucose and glycated hemoglobin levels in humans. An active compound (N55) with a new N-linoleoyl-2-amino-γ-butyrolactone structure was purified from fenugreek seeds. N55 promoted GLP-1-dependent cAMP production and GLP-1R endocytosis in a dose-dependent and saturable manner. N55 specifically enhanced GLP-1 potency more than 40-fold, but not that of exendin 4, to stimulate cAMP production. In contrast to the current allosteric modulators that bind to GLP-1R, N55 binds to GLP-1 peptide and facilitates trypsin-mediated GLP-1 inactivation. These findings identify a new class of modulators of GLP-1R signaling and suggest that GLP-1 might be a viable target for drug discovery. Our results also highlight a feasible approach for screening bioactive activity of plant extracts.
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Affiliation(s)
| | | | | | - Gao-Hui Chen
- Molecular Biology, Academia Sinica, Taipei 11529, Taiwan
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