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Mantadaki AE, Linardakis M, Tsakiri M, Baliou S, Fragkiadaki P, Vakonaki E, Tzatzarakis MN, Tsatsakis A, Symvoulakis EK. Benefits of Quercetin on Glycated Hemoglobin, Blood Pressure, PiKo-6 Readings, Night-Time Sleep, Anxiety, and Quality of Life in Patients with Type 2 Diabetes Mellitus: A Randomized Controlled Trial. J Clin Med 2024; 13:3504. [PMID: 38930033 PMCID: PMC11205103 DOI: 10.3390/jcm13123504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2024] [Revised: 06/09/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024] Open
Abstract
Background: Diabetes is a rapidly growing global morbidity issue with high prevalence, and the associated dysglycemia leads to complications. Patients with type 2 diabetes mellitus (T2DM) often experience elevated anxiety levels, affecting their quality of life and diabetes management. This study investigated quercetin, a nutraceutical and potential senolytic with antioxidant activity, to detect its possible positive effect on the bio-clinical measurements and routine health of patients with T2DM. Methods: This prospective randomized controlled trial (RCT) investigated the clinical usefulness of quercetin in patients with T2DM receiving non-insulin medications. One hundred participants were stratified by age and sex (1:1) and randomized to control (n = 50) or intervention (n = 50) groups. The control received standard care only, while the intervention received 500 mg quercetin daily for 12 weeks, followed by an 8-week washout and a final consecutive 12-week supplementation period (total: 32 weeks), as adjunct to their usual care. Comprehensive health assessments, including blood analyses, were conducted at baseline and study termination. Quality of life and anxiety were assessed using the 36-item Short Form Health Survey (SF-36) and Short Anxiety Screening Test (SAST-10). Results: Eighty-eight patients with T2DM concluded the trial. Compared with the control, glycated hemoglobin (HbA1c) levels showed a significant decrease (Δ%-change: -4.0% vs. 0.1%, p = 0.011). Quercetin also significantly improved PiKo-6 readings (FEV1: 5.6% vs. -1.5%, p = 0.002), systolic blood pressure (-5.0% vs. -0.2%, p = 0.029), night-time sleep (11.6% vs. -7.3%, p < 0.001), anxiety levels (SAST-10) (-26.2% vs. 3.3%, p < 0.001), and quality of life (SF-36) (both physical and mental components, p < 0.001). Conclusions: Based on the current open-label study, quercetin appears to be a promising supplement for T2DM, providing lifestyle and care support. Further research is warranted to shift this potential from clinical usefulness and feasibility to multidisciplinary evidence.
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Affiliation(s)
- Aikaterini E. Mantadaki
- Clinic of Social and Family Medicine, Department of Social Medicine, School of Medicine, University of Crete, 70013 Heraklion, Greece; (M.L.); (E.K.S.)
| | - Manolis Linardakis
- Clinic of Social and Family Medicine, Department of Social Medicine, School of Medicine, University of Crete, 70013 Heraklion, Greece; (M.L.); (E.K.S.)
| | - Maria Tsakiri
- Iatrica, Local Unit of Lab Analysis and Diagnostics Network, 71303 Heraklion, Greece;
| | - Stella Baliou
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece or (S.B.); (P.F.); (E.V.); (M.N.T.); (A.T.)
| | - Persefoni Fragkiadaki
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece or (S.B.); (P.F.); (E.V.); (M.N.T.); (A.T.)
| | - Elena Vakonaki
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece or (S.B.); (P.F.); (E.V.); (M.N.T.); (A.T.)
| | - Manolis N. Tzatzarakis
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece or (S.B.); (P.F.); (E.V.); (M.N.T.); (A.T.)
| | - Aristidis Tsatsakis
- Laboratory of Toxicology, Medical School, University of Crete, 71003 Heraklion, Greece or (S.B.); (P.F.); (E.V.); (M.N.T.); (A.T.)
| | - Emmanouil K. Symvoulakis
- Clinic of Social and Family Medicine, Department of Social Medicine, School of Medicine, University of Crete, 70013 Heraklion, Greece; (M.L.); (E.K.S.)
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2
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Ansari P, Samia JF, Khan JT, Rafi MR, Rahman MS, Rahman AB, Abdel-Wahab YHA, Seidel V. Protective Effects of Medicinal Plant-Based Foods against Diabetes: A Review on Pharmacology, Phytochemistry, and Molecular Mechanisms. Nutrients 2023; 15:3266. [PMID: 37513684 PMCID: PMC10383178 DOI: 10.3390/nu15143266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/15/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Diabetes mellitus (DM) comprises a range of metabolic disorders characterized by high blood glucose levels caused by defects in insulin release, insulin action, or both. DM is a widespread condition that affects a substantial portion of the global population, causing high morbidity and mortality rates. The prevalence of this major public health crisis is predicted to increase in the forthcoming years. Although several drugs are available to manage DM, these are associated with adverse side effects, which limits their use. In underdeveloped countries, where such drugs are often costly and not widely available, many people continue to rely on alternative traditional medicine, including medicinal plants. The latter serves as a source of primary healthcare and plant-based foods in many low- and middle-income countries. Interestingly, many of the phytochemicals they contain have been demonstrated to possess antidiabetic activity such as lowering blood glucose levels, stimulating insulin secretion, and alleviating diabetic complications. Therefore, such plants may provide protective effects that could be used in the management of DM. The purpose of this article was to review the medicinal plant-based foods traditionally used for the management of DM, including their therapeutic effects, pharmacologically active phytoconstituents, and antidiabetic mode of action at the molecular level. It also presents future avenues for research in this field.
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Affiliation(s)
- Prawej Ansari
- Department of Pharmacy, School of Pharmacy and Public Health, Independent University, Bangladesh (IUB), Dhaka 1229, Bangladesh
- School of Biomedical Sciences, Ulster University, Coleraine BT52 1SA, UK
| | - Jannatul F Samia
- Department of Pharmacy, School of Pharmacy and Public Health, Independent University, Bangladesh (IUB), Dhaka 1229, Bangladesh
| | - Joyeeta T Khan
- Department of Pharmacy, School of Pharmacy and Public Health, Independent University, Bangladesh (IUB), Dhaka 1229, Bangladesh
| | - Musfiqur R Rafi
- Department of Pharmacy, School of Pharmacy and Public Health, Independent University, Bangladesh (IUB), Dhaka 1229, Bangladesh
| | - Md Sifat Rahman
- Department of Pharmacy, School of Pharmacy and Public Health, Independent University, Bangladesh (IUB), Dhaka 1229, Bangladesh
| | - Akib B Rahman
- Department of Pharmacy, School of Pharmacy and Public Health, Independent University, Bangladesh (IUB), Dhaka 1229, Bangladesh
| | | | - Veronique Seidel
- Natural Products Research Laboratory, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow G4 0RE, UK
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3
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Benazzouz-Smail L, Achat S, Brahmi F, Bachir-Bey M, Arab R, Lorenzo JM, Benbouriche A, Boudiab K, Hauchard D, Boulekbache L, Madani K. Biological Properties, Phenolic Profile, and Botanical Aspect of Nigella sativa L. and Nigella damascena L. Seeds: A Comparative Study. Molecules 2023; 28:molecules28020571. [PMID: 36677629 PMCID: PMC9863492 DOI: 10.3390/molecules28020571] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/14/2022] [Accepted: 12/28/2022] [Indexed: 01/09/2023] Open
Abstract
The use of Nigella seeds in the food, pharmaceutical, and cosmetic fields is common, since the iniquity and the virtues of these plants are directly related to their characteristic phytochemical composition. This investigation focused on the comparative study of the botanical aspect, phenolic profile, and in vitro and in vivo biological activities of Nigella sativa L. (NS) and Nigella damascena L. (ND) seeds. The macro- and micro-morphological properties of these seeds were studied, and the key dissimilarities between them were clearly illustrated. The phytochemical contents and phenolic profiles were determined, and the in vitro antioxidant activity was assessed using four methods. The in vivo antioxidant and biochemical parameters of the blood of supplemented mice were determined. The results of the macro- and micro-structure analysis revealed differences between the two plants. Here, ND is characterized by higher phytochemical contents and the best antioxidant activities. The HPLC analysis indicated the presence of nine compounds, namely seven phenolic acids, particularly hydroxybenzoic and caffeic acids, and two flavonoids. The administration of ND extract to mice for 21 days at a concentration of 500 mg/kg allowed a substantial amelioration of plasma antioxidant properties. In addition, the extracts ameliorate blood parameters (cholesterol, triglycerides, glycemia, and urea). Furthermore, the antimicrobial activity of extracts demonstrated their effects on Staphylococcus and Aspergillus. Nigella seeds, in particular ND, expressed considerable in vitro antioxidant properties and demonstrated significant amelioration of mice blood properties. Consequently, these species can serve as a valuable source of compounds with various applications.
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Affiliation(s)
- Leila Benazzouz-Smail
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Sabiha Achat
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Fatiha Brahmi
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Mostapha Bachir-Bey
- Laboratoire de Biochimie Appliquée, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Radia Arab
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - José Manuel Lorenzo
- Centro Tecnológico de la Carne de Galicia, Rúa Galicia Nº 4, Parque Tecnológico de Galicia, San Cibraodas Viñas, 32900 Ourense, Spain
- Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, 32004 Ourense, Spain
- Correspondence:
| | - Aicha Benbouriche
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Kahina Boudiab
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Didier Hauchard
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS UMR 6226, 13 Allée de Beaulieu, CS 50837, CEDEX 7, 35708 Rennes, France
| | - Lila Boulekbache
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
| | - Khodir Madani
- Laboratoire de Biomathématiques, Biochimie, Biophysique et Scientométrie, Faculté des Sciences de la Nature et de la Vie, Université de Bejaia, Bejaia 06000, Algeria
- Centre de Recherche en Technologies Agro-Alimentaires, Route de Targa Ouzemour, Bejaia 06000, Algeria
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4
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Adam SH, Mohd Nasri N, Kashim MIAM, Abd Latib EH, Ahmad Juhari MAA, Mokhtar MH. Potential health benefits of Nigella sativa on diabetes mellitus and its complications: A review from laboratory studies to clinical trials. Front Nutr 2022; 9:1057825. [PMID: 36438767 PMCID: PMC9686346 DOI: 10.3389/fnut.2022.1057825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/25/2022] [Indexed: 12/02/2022] Open
Abstract
This review aims to gather and summarize up-to-date information on the potential health benefits of Nigella sativa (NS) on diabetes mellitus (DM) and its complications from different animal models, clinical trials and in vitro studies. DM is one of the most prevalent metabolic disorders resulting from chronic hyperglycaemia due to problems in insulin secretion, insulin action or both. It affects people regardless of age, gender and race. The main consequence of DM development is the metabolic dysregulation of glucose homeostasis. Current treatments for DM include pharmacological therapy, insulin and diabetic therapy targeting β cells. Some of these therapeutic approaches are promising; however, their safety and effectiveness remain elusive. Since ancient times, medicinal plants have been used and proven effective against diseases. These plants are believed to be effective and benefit physiological and pathological processes, as they can be used to prevent, reduce or treat multiple diseases. Nigella sativa Linn. is an annual indigenous herbaceous plant belonging to Ranunculaceae, the buttercup family. NS exhibits multifactorial activities; it could ameliorate oxidative, inflammatory, apoptotic and insulinotropic effects and inhibit carbohydrate digestive enzymes. Thus, this review demonstrates the therapeutic potential of NS that could be used as a complement or adjuvant for the management of DM and its complications. However, future research should be able to replicate and fill in the gaps of the study conducted to introduce NS safely to patients with DM.
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Affiliation(s)
- Siti Hajar Adam
- Preclinical Department, Faculty of Medicine and Defence Health, Universiti Pertahanan Nasional Malaysia, Kuala Lumpur, Malaysia
| | - Noor Mohd Nasri
- Department of Nursing, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Mohd Izhar Ariff Mohd Kashim
- Centre of Shariah, Faculty of Islamic Studies, Universiti Kebangsaan Malaysia, Bangi,Selangor, Malaysia
- Insitute of Islam Hadhari, Universiti Kebangsaan Malaysia, Bangi, Selangor, Malaysia
| | | | | | - Mohd Helmy Mokhtar
- Department of Physiology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Ahmad J, Albarqi HA, Ahmad MZ, Orabi MAA, Md S, Bandopadhyay R, Ahmed F, Khan MA, Ahamad J, Mishra A. Utilization of Nanotechnology to Improve Bone Health in Osteoporosis Exploiting Nigella sativa and Its Active Constituent Thymoquinone. Bioengineering (Basel) 2022; 9:631. [PMID: 36354542 PMCID: PMC9687452 DOI: 10.3390/bioengineering9110631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/21/2022] [Accepted: 10/22/2022] [Indexed: 09/08/2024] Open
Abstract
Osteoporosis, a chronic bone disorder, is one of the leading causes of fracture and morbidity risk. Numerous medicinally important herbs have been evaluated for their efficacy in improving bone mass density in exhaustive preclinical and limited clinical studies. Nigella sativa L. has been used as local folk medicine, and traditional healers have used it to manage various ailments. Its reported beneficial effects include controlling bone and joint diseases. The present manuscript aimed to provide a sound discussion on the pharmacological evidence of N. sativa and its active constituent, thymoquinone, for its utility in the effective management of osteoporosis. N. sativa is reported to possess anti-IL-1 and anti-TNF-α-mediated anti-inflammatory effects, leading to positive effects on bone turnover markers, such as alkaline phosphatase and tartrate-resistant acid phosphatase. It is reported to stimulate bone regeneration by prompting osteoblast proliferation, ossification, and decreasing osteoclast cells. Thymoquinone from N. sativa has exhibited an antioxidant effect on bone tissue by reducing the FeNTA-induced oxidative stress. The present manuscript highlights phytochemistry, pharmacological effect, and the important mechanistic perspective of N. sativa and its active constituents for the management of osteoporosis. Further, it also provides sound discussion on the utilization of a nanotechnology-mediated drug delivery approach as a promising strategy to improve the therapeutic performance of N. sativa and its active constituent, thymoquinone, in the effective management of osteoporosis.
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Affiliation(s)
- Javed Ahmad
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia
| | - Hassan A. Albarqi
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia
| | - Mohammad Zaki Ahmad
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia
| | - Mohamed A. A. Orabi
- Department of Pharmacognosy, College of Pharmacy, Najran University, Najran 11001, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut-Branch, Assiut 71524, Egypt
| | - Shadab Md
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Ritam Bandopadhyay
- Department of Pharmacology, School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Faraha Ahmed
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar 110062, New Delhi, India
| | - Mohammad Ahmed Khan
- Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, Hamdard Nagar 110062, New Delhi, India
| | - Javed Ahamad
- Department of Pharmacognosy, Faculty of Pharmacy, Tishk International University, Erbil 44001, Iraq
| | - Awanish Mishra
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER)–Guwahati, Changsari, Kamrup 781101, Assam, India
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6
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Hadi S, Daryabeygi-Khotbehsara R, Mirmiran P, McVicar J, Hadi V, Soleimani D, Askari G. Effect of Nigella sativa oil extract on cardiometabolic risk factors in type 2 diabetes: A randomized, double-blind, placebo-controlled clinical trial. Phytother Res 2021; 35:3747-3755. [PMID: 34142392 DOI: 10.1002/ptr.6990] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 10/29/2020] [Accepted: 12/11/2020] [Indexed: 12/20/2022]
Abstract
The objective of this study was to determine the effects of Nigella sativa oil extract on cardiometabolic risk factors in people with type 2 diabetes (T2D). A randomized, controlled, clinical trial was conducted on 43 patients with T2D (23 women and 20 men; aged 53.5 ± 7.4 years). The intervention group (N = 23) received two 500-mg per day soft gel capsules containing Nigella sativa oil extract and the control group (N = 20) received two identical placebo soft gel capsules containing sunflower oil per day for the same period, 8 weeks. Pre- and post-intervention cardiometabolic risk factors were measured. Compared with the placebo, the N. sativa oil significantly decreased FBS (p = .03(, HbA1c (p = .001), total cholesterol (p = .04), TG (p = .003), LDL-c (p = .001), BMI (p < .001), waist circumference (p < .001), SBP (p = .001), and DBP (p = .002). HOMA-IR (p = .51) and HDL-c (p = .91) did not change significantly following Nigella sativa supplementation. Nigella sativa oil exerted beneficial effects on glycemic control, serum lipid profile, blood pressure, and body weight among people with T2D. Further long-term trials in the future may help confirm the current therapeutic benefits of Nigella sativa in T2D.
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Affiliation(s)
- Saeid Hadi
- Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Parvin Mirmiran
- Department of Nutrition, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Jenna McVicar
- Institute for Physical Activity and Nutrition (IPAN), Deakin University, Melbourne, Burwood, Australia
| | - Vahid Hadi
- Department of Health, Science and Research Branch, AJA University of Medical Sciences, Tehran, Iran
| | - Davood Soleimani
- Nutritional Sciences Department, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Gholamreza Askari
- Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.,Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
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Tavakoli-Rouzbehani OM, Abbasnezhad M, Kheirouri S, Alizadeh M. Effects of Nigella sativa oil supplementation on selected metabolic parameters and anthropometric indices in patients with coronary artery disease: A randomized, double-blind, placebo-controlled clinical trial. Phytother Res 2021; 35:3988-3999. [PMID: 33851461 DOI: 10.1002/ptr.7115] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/19/2021] [Accepted: 03/26/2021] [Indexed: 11/11/2022]
Abstract
Various metabolic parameters are risk factors related to the amplified risk of atherosclerotic cardiovascular disease. A wide variety of data exist on Nigella sativa (NS) and metabolic parameters. The current study is designed to examine NS supplementation on lipid profile, blood pressure, glycemic control, anthropometric indices, and insulin resistance in individuals with coronary artery disease (CAD). In a randomized, double-blind, placebo-controlled clinical trial, 60 patients with CAD received either 2 g of NS oil or sunflower oil as a placebo for 8 weeks. Biochemical and anthropometric measurements were assessed. NS significantly reduced weight (-1.82 Kg; 95% C, [2.72, 4.13]), body mass index (-0.67 kg/m2 ; 95% C, [0.33, 1.01]), waist circumference (-2.15 cm; 95% C, [1.06, 3.23]), hip circumference (-1.26 cm; 95% C, [0.61, 1.910]), waist-to-hip ratio (0.008; 95%C, [0.001, 0.01]), systolic (-9.52 mmHg; 95% C, [7.14, 11.9]), diastolic blood pressure (-8.26 mmHg; 95% C, [4.89, 11.62]), and fasting blood glucose (FBS) (-4.32 mg/dl; 95% C, [-0.51, 9.15]) as compared with the placebo group. The results indicate a potential beneficiary effect of NS on the metabolic parameters in CAD patients including improvements in anthropometric indices, blood pressure, and FBS.
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Affiliation(s)
- Omid Mohammad Tavakoli-Rouzbehani
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Nutrition Research Center, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohsen Abbasnezhad
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sorayya Kheirouri
- Department of Clinical Nutrition, Faculty of Nutrition and Food Science, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Alizadeh
- Nutrition Research Center, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Hadi V, Pahlavani N, Malekahmadi M, Nattagh-Eshtivani E, Navashenaq JG, Hadi S, Ferns GA, Ghayour-Mobarhan M, Askari G, Norouzy A. Nigella sativa in controlling Type 2 diabetes, cardiovascular, and rheumatoid arthritis diseases: Molecular aspects. JOURNAL OF RESEARCH IN MEDICAL SCIENCES 2021; 26:20. [PMID: 34221050 PMCID: PMC8240544 DOI: 10.4103/jrms.jrms_236_20] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/08/2020] [Accepted: 08/27/2020] [Indexed: 11/30/2022]
Abstract
Oxidative stress is an important factor in the etiology of several chronic diseases that include cardiovascular disease (CVD), Type 2 diabetes (T2D), and rheumatoid arthritis (RA). Oxidative stress can lead to inflammation, and this can contribute to these chronic diseases. Reducing inflammation and oxidative stress may, therefore, be useful in the prevention and treatment of these conditions. One of the treatment options for chronic diseases is the use of traditional medicine and herbs, such as Nigella sativa. This is one of the herbs that have recently been assessed for its ability to reduce inflammation and oxidative stress. We have reviewed the reported effects of N. sativa on risk factors of chronic diseases (CVD, DM, and RA) with emphasis on molecular and cellular mechanisms in controlling inflammation and oxidative stress. Various mechanisms have been proposed to contribute to the beneficial properties of N. sativa, including a reduction of lipid peroxidation via its antioxidant properties; agonist of peroxisome proliferator-activated receptor gamma in adipose tissue; activation of AMP-activated protein kinase, increased antioxidants, inhibition of nuclear factor-kappa B pathway; increased in interleukin-10 expression, CD4+ T-cell percentage, T regulatory cell percentage (CD4+ CD25+ T-cell) in peripheral blood, and CD4+/CD8+ ratio, but to prove this claim, it is necessary to conduct experimental and well-designed clinical trial studies with a larger sample size on the effects of N. sativa on these chronic diseases.
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Affiliation(s)
- Vahid Hadi
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Health, AJA University of Medical Sciences, Tehran, Iran
| | - Naseh Pahlavani
- Social Development and Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran.,Cellular and Molecular Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran
| | - Mahsa Malekahmadi
- Research Center for Gastroenterology and Liver Disease, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elyas Nattagh-Eshtivani
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jamshid Gholizadeh Navashenaq
- Noncommunicable Diseases Research Center, Bam University of Medical Sciences, Bam, Iran.,Department of Immunology, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | - Saeid Hadi
- Department of Health, AJA University of Medical Sciences, Tehran, Iran.,Department of Community Nutrition, School of Nutrition and Food Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Gordon A Ferns
- Division of Medical Education, Brighton and Sussex Medical School, Brighton, Sussex, England
| | - Majid Ghayour-Mobarhan
- Cardiovascular Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.,Department of Nutrition, International UNESCO Center for Health Related Basic Sciences and Human Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gholamreza Askari
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abdolreza Norouzy
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Ahmad MF, Ahmad FA, Ashraf SA, Saad HH, Wahab S, Khan MI, Ali M, Mohan S, Hakeem KR, Athar MT. An updated knowledge of Black seed ( Nigella sativa Linn.): Review of phytochemical constituents and pharmacological properties. J Herb Med 2021; 25:100404. [PMID: 32983848 PMCID: PMC7501064 DOI: 10.1016/j.hermed.2020.100404] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Revised: 10/08/2019] [Accepted: 09/09/2020] [Indexed: 02/06/2023]
Abstract
N. sativa (N. sativa) has been used since ancient times, when a scientific concept about the use of medicinal plants for the treatment of human illnesses and alleviation of their sufferings was yet to be developed. It has a strong religious significance as it is mentioned in the religious books of Islam and Christianity. In addition to its historical and religious significance, it is also mentioned in ancient medicine. It is widely used in traditional systems of medicine for a number of diseases including asthma, fever, bronchitis, cough, chest congestion, dizziness, paralysis, chronic headache, back pain and inflammation. The importance of this plant led the scientific community to carry out extensive phytochemical and biological investigations on N. sativa. Pharmacological studies on N. sativa have confirmed its antidiabetic, antitussive, anticancer, antioxidant, hepatoprotective, neuro-protective, gastroprotective, immunomodulator, analgesic, antimicrobial, anti-inflammatory, spasmolytic, and bronchodilator activity. The present review is an effort to explore the reported chemical composition and pharmacological activity of this plant. It will help as a reference for scientists, researchers, and other health professionals who are working with this plant and who need up to date knowledge about it.
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Affiliation(s)
- Md Faruque Ahmad
- Department of Clinical Nutrition, College of Applied Medical Sciences, Jazan University, Saudi Arabia
| | - Fakhruddin Ali Ahmad
- Department of Laboratory Medicine Al-Hada and Taif Military Hospital, Saudi Arabia
| | - Syed Amir Ashraf
- Dept. of Clinical Nutrition, College of Applied Medical Sciences, University of Hail, Saudi Arabia
| | - Hisham H Saad
- Department of Clinical Nutrition, College of Applied Medical Sciences, Jazan University, Saudi Arabia
| | - Shadma Wahab
- College of Pharmacy, King Khalid University, Abha, Saudi Arabia
| | - Mohammed Idreesh Khan
- Department of Clinical Nutrition, College of Applied Health Sciences in Arras, Qassim University, Saudi Arabia
| | - M Ali
- College of pharmacy, Dept. of Pharmacognosy, Jazan University, Saudi Arabia
| | - Syam Mohan
- Medical Research Center, Jazan University, Jazan, Saudi Arabia
| | - Khalid Rehman Hakeem
- Department of Biological Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Md Tanwir Athar
- Bioactive Natural Product Laboratory, Hamdard University, India.,Scientific Research Center, Prince Sultan Military Medical City, Riyadh, Saudi Arabia
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Mohebbati R, Abbasnezhad A, Havakhah S, Mousavi M. The Effect of Nigella Sativa on Renal Oxidative Injury in Diabetic Rats. SAUDI JOURNAL OF KIDNEY DISEASES AND TRANSPLANTATION 2020; 31:775-786. [PMID: 32801238 DOI: 10.4103/1319-2442.292311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Oxidative stress plays a key role in the evolution of diabetes complications. The current study looked into the potential effects of the hydroalcoholic extract of Nigella sativa on the oxidative injury of the rat kidneys in diabetic animals. The animals were placed into five study groups in a random manner as follows: (1) control, (2) diabetic, (3 and 4) treatment with two doses of N. sativa extract (200 and 400 mg/kg), and (5) treatment with metformin (300 mg/kg). The time course of administration was six weeks. The malondialdehyde (MD A) and total thiol groups, as well as the superoxide dismutase and catalase activities, were also assessed in the renal tissue and lipid profile in serum. In the diabetic groups, the level of MDA significantly increased (P < 0.01) and antioxidant levels decreased compared to the control (P < 0.05). In treated rats with N. sativa, the antioxidant status of renal tissue was improved (P < 0.05 to P < 0.001). The lipid profile also improved in the rats treated with the extract (P < 0.001). Our findings suggest that long-term administration of N. sativa in diabetic rats induced by streptozotocin can improve the status of the oxidative stress in kidney tissue.
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Affiliation(s)
- Reza Mohebbati
- Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbasali Abbasnezhad
- Department of Physiology, School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Shahrzad Havakhah
- Addiction and Behavioral Sciences Research Center, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mojtaba Mousavi
- Department of Neuroscience, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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11
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Mohebbati R, Abbasnezhad A. Effects of Nigella sativa on endothelial dysfunction in diabetes mellitus: A review. JOURNAL OF ETHNOPHARMACOLOGY 2020; 252:112585. [PMID: 31972323 DOI: 10.1016/j.jep.2020.112585] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 01/15/2020] [Accepted: 01/16/2020] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Endothelial dysfunction is involved in lesion generation by the promotion of both early and late mechanism(s) of atherosclerosis such as adhesion molecules up-regulation, increased chemokine secretion and leukocyte adherence, increased cell permeability, enhanced low-density lipoprotein oxidation, cytokine elaboration, platelet activation and vascular smooth muscle cell migration, and proliferation. Nigella sativa is from the Ranunculaceae family which is used in some countries for various medicinal purposes. Nigella sativa seed has been widely used in traditional medicine for the treatment of diabetes. AIM OF THE REVIEW This review article summarized the therapeutic effects of Nigella sativa on endothelial dysfunction. METHODS Databases such as PubMed, Web of Science, Google Scholar, Scopus, and Iran Medex were considered. The search terms were " Nigella sativa " or "endothelium" and " Diabetes"," endothelial dysfunction ", " Thymoquinone " and " anti-inflammatory effect ". RESULTS The current review shows that Nigella sativa and Thymoquinone have a protective effect on endothelial dysfunction induced by diabetes. This is done by several mechanisms such as reduction of inflammatory and apoptotic markers, improving hyperglycemia, hyperlipidemia and antioxidant function, inhibiting platelet aggregation, and regulating eNOS, VCAM-1 and LOX-1 genes expression that involve in the endothelial dysfunction. Thymoquinone also reduces expression and secretion of some cytokines such as MCP-1, interleukin-1β, TNF-α, NF-κB, and Cox-2 that result in anti-inflammation effect. CONCLUSION Thymoquinone, the main phenolic terpene found in Nigella sativa, has several important properties such as antidiabetic, anti-inflammatory, and antioxidant activity. Therefore, Nigella sativa can improve endothelial dysfunction.
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Affiliation(s)
- Reza Mohebbati
- - Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Abbasali Abbasnezhad
- - Department of Physiology, School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran.
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12
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Fanoudi S, Alavi MS, Hosseini M, Sadeghnia HR. Nigella sativa and thymoquinone attenuate oxidative stress and cognitive impairment following cerebral hypoperfusion in rats. Metab Brain Dis 2019; 34:1001-1010. [PMID: 31016464 DOI: 10.1007/s11011-019-00394-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2018] [Accepted: 02/04/2019] [Indexed: 11/28/2022]
Abstract
Nigella sativa, a plant widely used in traditional medicine, possesses anti-inflammatory, antioxidant and neuroprotective properties. In the present study, we investigated the effect of hydroalcoholic extract of N. sativa seeds (NSE) and its active constituent, thymoquinone (TQ), on learning and memory deficits, hippocampal acetylcholine esterase (AChE) activity, and markers of redox status, mainly lipid peroxidation and superoxide dismutase (SOD) activity following cerebral hypoperfusion in rats. Cerebral hypoperfusion was induced by permanent occlusion of bilateral common carotid arteries (2VO). Male Wistar rats were administered either a vehicle (sham group: 10 ml/kg/day, ip), NSE (100, 200, and 400 mg/kg/day, ip), TQ (10, 20, and 40 mg/kg/day, ip), or donepezil (5 mg/kg/day, ip) for 10 days (three days before and seven days after ligation). Spatial learning and memory deficits were investigated using the Morris water maze (MWM) task. 2VO produced significant learning and memory deficits as evidenced by increased latency time to reach the hidden platform, increased swimming time, and decreased time spent in the target quadrant in the probe trial in the MWM task. There was also a significant increase in the lipid peroxidation level and AChE activity, and a significant decrease in SOD activity in the hippocampal portion of hypoperfused rats, as compared with the sham group. Treatment with NSE (400 mg/kg/day; p < 0.001) and TQ (40 mg/kg/day; p < 0.001), as well as donepezil significantly prevented learning and memory impairments and alleviated changes in the hippocampal lipid peroxide level and SOD and AChE activities in this model. In conclusion, our data suggest that N. sativa and thymoquinone have a beneficial role in cerebrovascular insufficiency states and dementia.
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Affiliation(s)
- Sahar Fanoudi
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohaddeseh S Alavi
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Hosseini
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid R Sadeghnia
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran.
- Division of Neurocognitive Sciences, Psychiatry and Behavioral Sciences Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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Pelegrin S, Galtier F, Chalançon A, Gagnol JP, Barbanel AM, Pélissier Y, Larroque M, Lepape S, Faucanié M, Gabillaud I, Petit P, Chevassus H. Effects of Nigella sativa seeds (black cumin) on insulin secretion and lipid profile: A pilot study in healthy volunteers. Br J Clin Pharmacol 2019; 85:1607-1611. [PMID: 30875097 DOI: 10.1111/bcp.13922] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 02/19/2019] [Accepted: 03/01/2019] [Indexed: 02/06/2023] Open
Abstract
It has been claimed that Nigella sativa seeds (NSS), also known as black cumin, have antidiabetic and lipid-lowering properties. Our pilot study investigated the effects of powdered NSS on insulin secretion and lipid profile in healthy male volunteers. We conducted a double-blind, randomized, placebo-controlled 4-week trial in 30 subjects, receiving NSS powder (1 g/day) or placebo orally (15 subjects/group). Insulin secretion as determined by the hyperglycaemic clamp technique, insulin sensitivity as well as cholesterol and triglycerides serum concentrations, were measured before and after treatment. NSS powder administration was clinically well tolerated. It did not modify fasting glycaemia and insulinaemia, and was ineffective on glucose-induced insulin secretion and insulin sensitivity. No significant changes on serum lipids were observed after treatment in any treatment groups, nor between the two treatment groups. However, in the treated group only, there was a significant correlation between total cholesterol change after treatment and its baseline level (r = -0.71, P = 0.006, n = 13), and between low-density lipoprotein (LDL) cholesterol change after treatment and its baseline level (r = -0.74, P = 0.004, n = 13). No such correlations were found for high-density lipoprotein (HDL) cholesterol, and for triglycerides. These results do not confirm any NSS effect on glucose regulation; however, they suggest that NSS powder may be of interest in lowering lipid concentrations in hyperlipidaemic subjects.
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Affiliation(s)
- Sophie Pelegrin
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
| | - Florence Galtier
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
| | - Anne Chalançon
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
| | - Jean-Pierre Gagnol
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
| | | | - Yves Pélissier
- Faculté de Pharmacie, Laboratoire de Pharmacognosie & UMR Qualisud, Université de Montpellier, Montpellier, France
| | - Michel Larroque
- Faculté de Pharmacie, Laboratoire de Chimie analytique et Bromatologie & UMR Qualisud, Université de Montpellier, Montpellier, France
| | - Samuel Lepape
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
| | - Marie Faucanié
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
| | - Isabelle Gabillaud
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
| | - Pierre Petit
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
| | - Hugues Chevassus
- Centre d'Investigation Clinique, CHU de Montpellier, Montpellier, France.,CIC1411, INSERM, Montpellier, France
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Askari G, Rouhani MH, Ghaedi E, Ghavami A, Nouri M, Mohammadi H. Effect of
Nigella sativa
(black seed) supplementation on glycemic control: A systematic review and meta‐analysis of clinical trials. Phytother Res 2019; 33:1341-1352. [DOI: 10.1002/ptr.6337] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Revised: 02/01/2019] [Accepted: 02/09/2019] [Indexed: 01/13/2023]
Affiliation(s)
- Gholamreza Askari
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food ScienceIsfahan University of Medical Sciences Isfahan Iran
| | - Mohammad Hossein Rouhani
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food ScienceIsfahan University of Medical Sciences Isfahan Iran
| | - Ehsan Ghaedi
- Department of Cellular and Molecular Nutrition, School of Nutritional Sciences and DieteticsTehran University of Medical Sciences Tehran Iran
| | - Abed Ghavami
- Department of Nutrition, School of NutritionTabriz University of Medical Sciences Tabriz Iran
| | - Mehran Nouri
- Food Security Research Center, Department of Community Nutrition, School of Nutrition and Food ScienceIsfahan University of Medical Sciences Isfahan Iran
| | - Hamed Mohammadi
- Student Research Committee, Department of Clinical Nutrition, School of Nutrition and Food ScienceIsfahan University of Medical Sciences Isfahan Iran
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15
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Abbasnezhad A, Niazmand S, Mahmoudabady M, Rezaee SA, Soukhtanloo M, Mosallanejad R, Hayatdavoudi P. Nigella sativa L. seed regulated eNOS, VCAM-1 and LOX-1 genes expression and improved vasoreactivity in aorta of diabetic rat. JOURNAL OF ETHNOPHARMACOLOGY 2019; 228:142-147. [PMID: 30223051 DOI: 10.1016/j.jep.2018.09.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 08/04/2018] [Accepted: 09/13/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nigella sativa L. seed has been widely used in traditional medicine for the treatment of diabetes. The major reason for vascular complications in diabetic patients is endothelial dysfunction. However, the impact of N. sativa seed on endothelial dysfunction in diabetes remains unclear. AIM OF THE STUDY This study was conducted to evaluate the effect of the hydroalcoholic extract of N. sativa seed on eNOS, VCAM-1, and LOX-1 genes expression and the vasoreactivity of aortic rings to acetylcholine (Ach) in streptozotocin (STZ)-induced diabetic rat. MATERIALS AND METHODS Treated rats received N. sativa seed extract (100, 200, and 400 mg/kg) daily by gavage for 6 weeks. The fasting blood glucose and lipids were measured and atherogenic index of plasma (AIP) was calculated. The endothelium-dependent vasoreactivity responses of isolated aortic rings were evaluated in the presence of cumulative concentrations of Ach (10-8-10-5 M). eNOS, VCAM-1, and LOX-1 genes expression in aortic tissue was assessed by using real time polymerase chain reaction (PCR). RESULTS Male diabetic Wistar rats treated with N. sativa seed extract for six weeks reduced serum glucose and lipids and improved AIP. The vasorelaxant responses of aortic rings to Ach were markedly improved. N. sativa seed significantly increased eNOS in mRNA expression level and function, while it decreased VCAM-1 and LOX-1 expressions in vascular cells of aortic tissue which assessed only in mRNA level. CONCLUSIONS The results of this study showed that N. sativa seed more likely, has antidiabetic and antihyperlipidemic properties and improved vasoreactivity, endothelial dysfunction, and vascular inflammation in diabetic rats' aorta.
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Affiliation(s)
- Abbasali Abbasnezhad
- Department of Physiology, Faculty of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran
| | - Saeed Niazmand
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Cardiovascular Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Maryam Mahmoudabady
- Department of Physiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Neurogenic Inflammation Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Abdolrahim Rezaee
- Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohmmad Soukhtanloo
- Department of Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Razieh Mosallanejad
- Research center for Non.Communicable Diseases, Jahrom University of Medical Sciences, Jahrom, Iran
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16
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Black Seed Thymoquinone Improved Insulin Secretion, Hepatic Glycogen Storage, and Oxidative Stress in Streptozotocin-Induced Diabetic Male Wistar Rats. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:8104165. [PMID: 29686746 PMCID: PMC5857299 DOI: 10.1155/2018/8104165] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 12/19/2017] [Indexed: 01/24/2023]
Abstract
Diabetes mellitus is one of the metabolic diseases having several complications. Nigella sativa oil (NSO) might have beneficial effects in the treatment of diabetic complications. Thirty-two mature male Wistar rats were equally divided into four experimental groups: control, control NSO 2 mL/kg, streptozotocin- (STZ-) induced diabetic, and diabetic (STZ-induced) treated with oral NSO 2 mg/kg for 30 days. Fasting blood glucose (FBG), insulin, and lipid profile levels were determined. Pancreatic and hepatic tissues were used for catalase and GSH. Histopathology, hepatic glycogen contents, insulin immunohistochemistry, and pancreatic islet morphometry were performed. NSO 2 mL/kg was noticed to decrease (P < 0.05) FBG and increase (P < 0.05) insulin levels in diabetic rats than in diabetic nontreated animals. Lipid profile showed significant (P < 0.5) improvement in diabetic rats that received NSO 2 mL/kg than in the diabetic group. Both pancreatic and hepatic catalase and GSH activities revealed a significant (P < 0.05) increment in the diabetic group treated with NSO than in the diabetic animals. NSO improved the histopathological picture and hepatic glycogen contents of the diabetic group as well as increased (P < 0.05) insulin immunoreactive parts % and mean pancreatic islet diameter. NSO exerts ameliorative and therapeutic effects on the STZ-induced diabetic male Wistar rats.
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17
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Srinivasan K. Cumin (Cuminum cyminum) and black cumin (Nigella sativa) seeds: traditional uses, chemical constituents, and nutraceutical effects. FOOD QUALITY AND SAFETY 2018. [DOI: 10.1093/fqsafe/fyx031] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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18
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In Vivo Subacute Toxicity and Antidiabetic Effect of Aqueous Extract of Nigella sativa. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:8427034. [PMID: 29479371 PMCID: PMC5742890 DOI: 10.1155/2017/8427034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Revised: 10/22/2017] [Accepted: 11/01/2017] [Indexed: 11/18/2022]
Abstract
Context. Nigella sativa seeds are usually used as traditional medicine for a wide range of therapeutic purposes. Objective. To investigate the subacute toxicity of NS aqueous extract and select its lowest dose to study its antidiabetic effect. Methods. 5 AqE.NS doses (2, 6.4, 21, 33, and 60 g/Kg) were daily administered to mice by gavage. Biochemical parameters measurements and histological study of the liver and the kidney were performed after 6 weeks of supplementation. Thereafter, and after inducing diabetes by alloxan, rats were treated by 2 g/Kg of AqE.NS during 8 weeks. Metabolic parameters were measured on sera. A horizontal electrophoresis of plasmatic lipoprotein was conducted. Glycogen, total lipids, and triglycerides were measured in the liver. TBARS were evaluated on adipose tissue, liver, and pancreas. Results. AqE.NS showed no variation in urea and albumin at the 5 doses, but hepatotoxicity from 21 g/Kg was confirmed by histopathological observations of the liver. In diabetic rats, AqE.NS significantly decreased glycemia, TG, T-cholesterol, LDL-c, and TBARS and showed a restored insulinemia and a significant increase in HDL-c. Results on the liver indicated a decrease in lipids and a possible glycogenogenesis. Conclusion. AqE.NS showed its safety at low doses and its evident antihyperglycemic, antihyperlipidemic, and antioxidant effect.
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19
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Kaur G, Invally M, Khan MK, Jadhav P. A nutraceutical combination of Cinnamomum cassia &Nigella sativa for Type 1 diabetes mellitus. J Ayurveda Integr Med 2017; 9:27-37. [PMID: 28988684 PMCID: PMC5884041 DOI: 10.1016/j.jaim.2017.02.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 02/13/2017] [Indexed: 12/02/2022] Open
Abstract
Background Nigella sativa (black cumin) and Cinnamomum cassia (Cinnamon) are an integral part of the Indian diet, and have also been sourced in the ayurveda, the traditional Indian system of medicine, for their medicinal properties. Both the herbs individually have been successfully evaluated for their preliminary antidiabetic potential. Objective Herein, we dived deeper into antidiabetic properties of these herbs, by investigating the combinatorial effect of both herbs, on parameters of diabetes and further, as an adjunct to metformin therapy, for assessing the pharmacodynamics of herb-drug interaction in diabetes mellitus. The objectives were to screen the combinatorial extract of Nigella sativa & Cinnamomum cassia’s (NSCCe) alone and in combination with metformin for its potential in mitigating symptoms of diabetes mellitus-alone, and as an adjunct therapy with metformin. Materials and methods Diabetes was induced in the animals by a single intraperitoneal injection of streptozotocin. Animals were divided into seven groups with 6 animals each: Vehicle control, Negative control, Positive control (Metformin 50 mg/kg), treatment groups 4 and 5 received NSCCe at the doses of 100 mg/kg and 200 mg/kg, respectively. Groups 6 and 7 received the same doses, in combination with Metformin (50 and 25 mg/kg). Following a 28-day dosing period, plasma glucose levels, lipid profile and renal function profile were evaluated. Histopathological examinations were performed to measure any morphological change in kidney, liver and pancreatic tissue. Results Combination of Nigella sativa & Cinnamomum cassia extracts significantly normalized plasma glucose levels, lipid profile and kidney function parameters, compared to the diabetic control group. Animals treated with the combinatorial extract and metformin showed more prominent effects on these parameters. Significant reversal in the pancreatic cell damage was observed on treatment with NSCCe. Conclusion This study generates evidence to support Nigella sativa & Cinnamomum cassia as an adjunctive in diabetes treatment protocols.
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Affiliation(s)
- Ginpreet Kaur
- Department of Pharmacology, SPP School of Pharmacy & Technology Management, SVKM's NMIMS, India.
| | - Mihir Invally
- Department of Pharmacology, SPP School of Pharmacy & Technology Management, SVKM's NMIMS, India
| | - Mohammed Kamil Khan
- Department of Pharmacology, SPP School of Pharmacy & Technology Management, SVKM's NMIMS, India
| | - Priyanka Jadhav
- CRC Pharma LLC, 333, Littleton Road, Parsippany, NJ, 07054, USA
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20
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Karandrea S, Yin H, Liang X, Slitt AL, Heart EA. Thymoquinone ameliorates diabetic phenotype in Diet-Induced Obesity mice via activation of SIRT-1-dependent pathways. PLoS One 2017; 12:e0185374. [PMID: 28950020 PMCID: PMC5614580 DOI: 10.1371/journal.pone.0185374] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 09/12/2017] [Indexed: 02/06/2023] Open
Abstract
Thymoquinone, a natural occurring quinone and the main bioactive component of plant Nigella sativa, undergoes intracellular redox cycling and re-oxidizes NADH to NAD+. TQ administration (20 mg/kg/bw/day) to the Diet-Induced Obesity (DIO) mice reduced their diabetic phenotype by decreasing fasting blood glucose and fasting insulin levels, and improved glucose tolerance and insulin sensitivity as evaluated by oral glucose and insulin tolerance tests (OGTT and ITT). Furthermore, TQ decreased serum cholesterol levels and liver triglycerides, increased protein expression of phosphorylated Akt, decreased serum levels of inflammatory markers resistin and MCP-1, and decreased NADH/NAD+ ratio. These changes were paralleled by an increase in phosphorylated SIRT-1 and AMPKα in liver and phosphorylated SIRT-1 in skeletal muscle. TQ also increased insulin sensitivity in insulin-resistant HepG2 cells via a SIRT-1-dependent mechanism. These findings are consistent with the TQ-dependent re-oxidation of NADH to NAD+, which stimulates glucose and fatty acid oxidation and activation of SIRT-1-dependent pathways. Taken together, these results demonstrate that TQ ameliorates the diabetic phenotype in the DIO mouse model of type 2 diabetes.
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Affiliation(s)
- Shpetim Karandrea
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, Florida, United States of America
| | - Huquan Yin
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, Florida, United States of America
| | - Xiaomei Liang
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, Florida, United States of America
| | - Angela L. Slitt
- Department of Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island, United States of America
| | - Emma A. Heart
- Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, Florida, United States of America
- * E-mail:
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Al-Waili N, Al-Waili H, Al-Waili T, Salom K. Natural antioxidants in the treatment and prevention of diabetic nephropathy; a potential approach that warrants clinical trials. Redox Rep 2017; 22:99-118. [PMID: 28276289 PMCID: PMC6837693 DOI: 10.1080/13510002.2017.1297885] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Diabetic nephropathy is the major cause of end-stage renal disease and effective and new therapeutic approaches are needed in diabetic nephropathy and chronic kidney diseases. Oxidative stress and inflammatory process are important factors contributing to kidney damage by increasing production of oxidants. KEAP1/Nrf2/ARE pathway regulates the transcription of many antioxidant genes and modulation of the pathway up regulates antioxidants. NFB controls the expression of genes involved in the inflammatory response. Natural substances have antioxidant and anti-inflammatory activities and have an impact on NFB and KEAP1/Nrf2/ARE pathways. The preclinical studies explored the effectiveness of whole herbs, plants or seeds and their active ingredients in established diabetic nephropathy. They ameliorate oxidative stress induced kidney damage, enhance antioxidant system, and decrease inflammatory process and fibrosis; most likely by activating KEAP1/Nrf2/ARE pathway and by deactivating NFB pathway. Whole natural products contain balanced antioxidants that might work synergistically to induce beneficial therapeutic outcome. In this context, more clinical studies involving whole plants or herbal products or mixtures of different herbs and plants and their active ingredients might change our strategies for the management of diabetic nephropathy. The natural products might be useful as preventive interventions and studies are required in this field.
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Affiliation(s)
- Noori Al-Waili
- New York Medical Care for Nephrology, Al-Waili Foundation for Science, New York, USA
| | - Hamza Al-Waili
- New York Medical Care for Nephrology, Al-Waili Foundation for Science, New York, USA
| | - Thia Al-Waili
- New York Medical Care for Nephrology, Al-Waili Foundation for Science, New York, USA
| | - Khelod Salom
- New York Medical Care for Nephrology, Al-Waili Foundation for Science, New York, USA
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Beidokhti MN, Jäger AK. Review of antidiabetic fruits, vegetables, beverages, oils and spices commonly consumed in the diet. JOURNAL OF ETHNOPHARMACOLOGY 2017; 201:26-41. [PMID: 28257977 DOI: 10.1016/j.jep.2017.02.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2016] [Revised: 02/02/2017] [Accepted: 02/21/2017] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Type 2 diabetes is the most common type of diabetes and its prevalence is rapidly increasing throughout the world. Modifications of lifestyle such as suitable diet and exercise programs along with pharmacotherapy and education of patients are beneficial therapies for patients with type 2 diabetes. The ethnopharmacological use of herbal medicines, many of them part of our diet as spices, vegetables and fruits, has been developed for the treatment of diabetes due to inexpensiveness, easy availability and few side effects. AIM OF THE STUDY Our aim is to present a review for researchers who are interested in the biologically active dietary plants traditionally utilized in the treatment of diabetes. MATERIALS AND METHODS Information was obtained from a literature search of electronic databases such as Google Scholar, Pubmed, Sci Finder and Cochrane. Common and scientific name of the fruits, vegetables, beverages, oils and spices and the words 'antidiabetic', 'hypoglycemic', 'anti-hyperglycemic', 'type 2 diabetes' were used as keywords for search. RESULTS Certain fruits and vegetables are functional foods and their consumption reduces the incidence of type 2 diabetes. Hypoglycemic effects of fruits and vegetables may be due to their inducing nature on pancreatic β-cells for insulin secretion, or bioactive compounds such as flavonoids, alkaloids and anthocyanins, which act as insulin-like molecules or insulin secretagogues. CONCLUSION This write-up covers hypoglycemic, anti-hyperglycemic and anti-diabetic activities of some dietary fruits, vegetables, beverages, oils and spices and their active hypoglycemic constituents. Including such plant species in the diet might improve management of type 2 diabetes.
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Affiliation(s)
- Maliheh Najari Beidokhti
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Anna K Jäger
- Department of Drug Design and Pharmacology, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
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Gholamnezhad Z, Havakhah S, Boskabady MH. Preclinical and clinical effects of Nigella sativa and its constituent, thymoquinone: A review. JOURNAL OF ETHNOPHARMACOLOGY 2016; 190:372-386. [PMID: 27364039 DOI: 10.1016/j.jep.2016.06.061] [Citation(s) in RCA: 140] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 06/26/2016] [Accepted: 06/26/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Nigella sativa (N. sativa) L. (Ranunculaceae), well known as black cumin, has been used as a herbal medicine that has a rich historical background. It has been traditionally and clinically used in the treatment of several diseases. Many reviews have investigated this valuable plant, but none of them focused on its clinical effects. Therefore, the aim of the present review is to provide a comprehensive report of clinical studies on N. sativa and some of its constituents. MATERIALS AND METHODS Studies on the clinical effects of N. sativa and its main constituent, thymoquinone, which were published between 1979 and 2015, were searched using various databases. RESULTS AND DISCUSSION During the last three decades, several in vivo and in vitro animal studies revealed the pharmacological properties of the plant, including its antioxidant, antibacterial, antiproliferative, proapoptotic, anti-inflammatory, and antiepileptic properties, and its effect on improvement in atherogenesis, endothelial dysfunction, glucose metabolism, lipid profile dysfunction, and prevention of hippocampus pyramidal cell loss. In clinical studies, antimicrobial, antioxidant, anti-inflammatory, antitumor, and antidiabetic properties as well as therapeutic effects on metabolic syndrome, and gastrointestinal, neuronal, cardiovascular, respiratory, urinary, and reproductive disorders were found in N. sativa and its constituents. CONCLUSION Extensive basic and clinical studies on N. sativa seed powder, oil, extracts (aqueous, ethanolic, and methanolic), and thymoquinone showed valuable therapeutic effects on different disorders with a wide range of safe doses. However, there were some confounding factors in the reviewed clinical trials, and a few of them presented data about the phytochemical composition of the plant. Therefore, a more standard clinical trial with N. sativa supplementation is needed for the plant to be used as an inexpensive potential biological adjuvant therapy.
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Affiliation(s)
- Zahra Gholamnezhad
- Neurogenic Inflammation Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Shahrzad Havakhah
- School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mohammad Hossein Boskabady
- Neurogenic Inflammation Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Physiology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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Akram Khan M, Afzal M. Chemical composition of Nigella sativa Linn: Part 2 Recent advances. Inflammopharmacology 2016; 24:67-79. [PMID: 27068721 PMCID: PMC4883276 DOI: 10.1007/s10787-016-0262-7] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 03/15/2016] [Indexed: 01/15/2023]
Abstract
The black cumin or Nigella sativa L. seeds have many acclaimed medicinal properties such as bronchodilatory, hypotensive, antibacterial, antifungal, analgesic, anti-inflammatory and immunopotentiating. This review article is an update on the previous article published on Nigella sativa L. in this journal in 1999. It covers the medicinal properties and chemical syntheses of the alkaloids isolated from the seeds of the herb.
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Affiliation(s)
- M Akram Khan
- Biomolecular Science Centre, Sheffield Hallam University, Howard Street, Sheffield, S1 1WB, UK.
| | - M Afzal
- Department of Biological Sciences, Faculty of Science, Kuwait University, Kuwait City, Kuwait
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Somboonwong J, Yusuksawad M, Keelawat S, Thongruay S, Poumsuk U. Minimization of the Risk of Diabetic Microangiopathy in Rats by Nigella sativa. Pharmacogn Mag 2016; 12:S175-80. [PMID: 27279704 PMCID: PMC4883076 DOI: 10.4103/0973-1296.182169] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 12/07/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Microangiopathy is a chronic diabetic complication resulting from metabolic derangements, oxidative stress, and increased pro-inflammatory cytokine production. Nigella sativa Linn. is used as an herbal medicine that exerts hypoglycemic, antilipidemic, anti-inflammatory, and antioxidant effects. OBJECTIVE To examine the effects of N. sativa extract on cutaneous microvascular changes in diabetic rats. MATERIALS AND METHODS Sprague-Dawley rats were randomly assigned into the following four groups: Untreated and N. sativa-treated normal controls and untreated and N. sativa-treated rats with streptozotocin-induced diabetes. A cold-pressed N. sativa extract was then orally administered (1000 mg/kg/day). After 8 weeks of treatment, the glucose, glycosylated hemoglobin (HbA1c), tumor necrosis factor-alpha (TNF-α), insulin levels, and lipid profile were determined in cardiac blood. Dermal capillary wall thickness was measured in tail skin sections stained with periodic acid-Schiff. Endothelial apoptosis was morphologically evaluated by hematoxylin and eosin staining. RESULTS Diabetes significantly reduced the circulating insulin and low-density lipoprotein levels and caused elevations in the glucose, HbA1c, and triglyceride levels, accompanied by a slight increase in total cholesterol levels and no change in the high-density lipoprotein and TNF-α levels. Capillary basement membrane thickening and a decreased capillary luminal diameter despite no evidence of endothelial cell apoptosis were also observed. N. sativa treatment of diabetic rats reduced the mean HbA1c concentration by 1.4%, enlarged the capillary lumens, and tended to attenuate dermal capillary basement membrane thickening without affecting the lipid profile or TNF-α level. CONCLUSION Our results indicate that N. sativa may be used to minimize the risk of diabetic microangiopathy, potentially due in part to its glycemic control activity. SUMMARY Diabetes causes dermal capillary basement membrane thickening and a decreased capillary luminal diameterNigella sativa treatment of diabetic rats enlarged the capillary lumens and tended to attenuate dermal capillary basement membrane thickeningN. sativa treatment of diabetic rats reduced the mean glycosylated hemoglobin concentration by 1.4%, which exceeds the necessary reduction previously described to decrease the risk of diabetic microangiopathy, without affecting the lipid profile or tumor necrosis factor-alpha levelN. sativa improves rat diabetic microangiopathy, potentially due in part to its glycemic control activity. Abbreviations used: H and E: Hematoxylin and eosin, HbA1c: Glycosylated hemoglobin, HDL-C: High-density lipoprotein cholesterol, LDL-C: Low-density lipoprotein cholesterol, PAS: Periodic acid-Schiff, STZ: Streptozotocin.
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Affiliation(s)
- Juraiporn Somboonwong
- Department of Physiology, Faculty of Medicine, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Mariem Yusuksawad
- Department of Physiology, Faculty of Medicine, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Somboon Keelawat
- Department of Pathology, Faculty of Medicine, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Sirima Thongruay
- Department of Research and Development Center for Livestock Production Technology, Faculty of Veterinary Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Ubon Poumsuk
- Department of Pathology, Faculty of Medicine, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
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26
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Gray JP, Burgos DZ, Yuan T, Seeram N, Rebar R, Follmer R, Heart EA. Thymoquinone, a bioactive component of Nigella sativa, normalizes insulin secretion from pancreatic β-cells under glucose overload via regulation of malonyl-CoA. Am J Physiol Endocrinol Metab 2016; 310:E394-404. [PMID: 26786775 PMCID: PMC4796268 DOI: 10.1152/ajpendo.00250.2015] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Accepted: 01/11/2016] [Indexed: 12/18/2022]
Abstract
Thymoquinone (2-isopropyl-5-methylbenzo-1,4-quinone) is a major bioactive component of Nigella sativa, a plant used in traditional medicine to treat a variety of symptoms, including elevated blood glucose levels in type 2 diabetic patients. Normalization of elevated blood glucose depends on both glucose disposal by peripheral tissues and glucose-stimulated insulin secretion (GSIS) from pancreatic β-cells. We employed clonal β-cells and rodent islets to investigate the effects of thymoquinone (TQ) and Nigella sativa extracts (NSEs) on GSIS and cataplerotic metabolic pathways implicated in the regulation of GSIS. TQ and NSE regulated NAD(P)H/NAD(P)(+) ratios via a quinone-dependent redox cycling mechanism. TQ content was positively correlated with the degree of redox cycling activity of NSE extracts, suggesting that TQ is a major component engaged in mediating NSE-dependent redox cycling. Both acute and chronic exposure to TQ and NSE enhanced GSIS and were associated with the ability of TQ and NSE to increase the ATP/ADP ratio. Furthermore, TQ ameliorated the impairment of GSIS following chronic exposure of β-cells to glucose overload. This protective action was associated with the TQ-dependent normalization of chronic accumulation of malonyl-CoA, elevation of acetyl-CoA carboxylase (ACC), fatty acid synthase, and fatty acid-binding proteins following chronic glucose overload. Together, these data suggest that TQ modulates the β-cell redox circuitry and enhances the sensitivity of β-cell metabolic pathways to glucose and GSIS under normal conditions as well as under hyperglycemia. This action is associated with the ability of TQ to regulate carbohydrate-to-lipid flux via downregulation of ACC and malonyl-CoA.
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Affiliation(s)
- Joshua P Gray
- Department of Science, United States Coast Guard Academy, New London, Connecticut
| | | | - Tao Yuan
- Department of Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island
| | - Navindra Seeram
- Department of Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island
| | - Rebecca Rebar
- Department of Science, United States Coast Guard Academy, New London, Connecticut
| | - Rebecca Follmer
- Department of Science, United States Coast Guard Academy, New London, Connecticut
| | - Emma A Heart
- Department of Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island; Department of Molecular Pharmacology and Physiology, University of South Florida, Tampa, Florida; and Eugene Bell Center for Regenerative Biology and Tissue Engineering, Marine Biological Laboratory, Woods Hole, Massachusetts
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27
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Anti-diabetic functional foods as sources of insulin secreting, insulin sensitizing and insulin mimetic agents. J Funct Foods 2016. [DOI: 10.1016/j.jff.2015.10.013] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
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28
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Lei NP, Fu YH, Zhu XQ. Elemental step thermodynamics of various analogues of indazolium alkaloids to obtaining hydride in acetonitrile. Org Biomol Chem 2015; 13:11472-85. [PMID: 26451708 DOI: 10.1039/c5ob01715g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of analogues of indazolium alkaloids were designed and synthesized. The thermodynamic driving forces of the 6 elemental steps for the analogues of indazolium alkaloids to obtain hydride in acetonitrile were determined using an isothermal titration calorimeter (ITC) and electrochemical methods, respectively. The effects of molecular structure and substituents on the thermodynamic driving forces of the 6 steps were examined. Meanwhile, the oxidation mechanism of NADH coenzyme by indazolium alkaloids was examined using the chemical mimic method. The result shows that the oxidation of NADH coenzyme by indazolium alkaloids in vivo takes place by one-step concerted hydride transfer mechanism.
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Affiliation(s)
- Nan-Ping Lei
- The State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, China.
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29
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Heshmati J, Namazi N, Memarzadeh MR, Taghizadeh M, Kolahdooz F. Nigella sativa oil affects glucose metabolism and lipid concentrations in patients with type 2 diabetes: A randomized, double-blind, placebo-controlled trial. Food Res Int 2015. [DOI: 10.1016/j.foodres.2015.01.030] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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30
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Heshmati J, Namazi N. Effects of black seed (Nigella sativa) on metabolic parameters in diabetes mellitus: a systematic review. Complement Ther Med 2015; 23:275-82. [PMID: 25847566 DOI: 10.1016/j.ctim.2015.01.013] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 01/22/2015] [Accepted: 01/30/2015] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Current evidence indicated beneficial effects of some medicinal herbs on metabolic parameters. Nigella sativa is an example of herbs which can ameliorate metabolic factors in diabetes mellitus. Despite several narrative review studies on medicinal properties of NS, it seems that there is no systematic review to summarize effects of NS on glucose homoeostasis and lipid profile in diabetes mellitus. Therefore, the aim of present study was to review effects of N. sativa on metabolic parameters in diabetes mellitus. METHODS Pubmed, Science Direct, Google scholar and Springer databases were searched from 1995 till January 2014. Key words were included: N. sativa, black seed, diabetes, glucose level, lipid and insulin. Searching was limited to articles with English language. Review articles, case reports, abstract in symposium and congress, studies on N. sativa mixed with other plants were excluded. Based on critically appraise, eligibility of included articles were evaluated. RESULTS Finally 19 eligible articles (2 human trials, 14 animal models and 3 in vivo/in vitro studies) were selected. They indicated that N. sativa can modulate hyperglycemia and lipid profile dysfunction with various potential mechanisms including its antioxidant characteristics and effects on insulin secretion, glucose absorption, gluconeogenesis and gene expression. Some studies compared effects of various types (extract, oil, powdered) of N. sativa with each other and they reported different characteristics with various types of black seed. CONCLUSION N. sativa can improve glycemic status and lipid profile in diabetes models. However, more clinical trials are necessary to clarify beneficial effects of N. sativa, its effective type and dosage for diabetes management and its complications.
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Affiliation(s)
- Javad Heshmati
- Health Care Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nazli Namazi
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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31
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Coadministration of Black Seeds and Turmeric Shows Enhanced Efficacy in Preventing Metabolic Syndrome in Fructose-fed Rats. J Cardiovasc Pharmacol 2015; 65:176-83. [DOI: 10.1097/fjc.0000000000000179] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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32
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Razavi BM, Hosseinzadeh H. A review of the effects of Nigella sativa L. and its constituent, thymoquinone, in metabolic syndrome. J Endocrinol Invest 2014; 37:1031-40. [PMID: 25125023 DOI: 10.1007/s40618-014-0150-1] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 07/29/2014] [Indexed: 11/26/2022]
Abstract
BACKGROUND Metabolic syndrome is an important risk factor for cardiovascular disease (CVD) occurrence and mortality. CVDs are leading cause of death worldwide. Recently, there has been an increasing interest in the use of herbal medicines with more efficiency and minimal undesirable effects than chemical drugs for a variety of disorders including CVD. Nigella sativa and its active constituent, thymoquinone, have been documented to exhibit antidiabetic, antiobesity, hypotensive and hypolipidemic properties. AIM In this review, we discussed the most relevant articles to find out the role of N. sativa in different components of metabolic syndrome and CVD risk factors including high blood pressure, obesity, dyslipidemia and high blood glucose. CONCLUSIONS This review suggests a potential role of N. sativa and TQ in the management of metabolic syndrome, however more studies should be conducted to evaluate their effectiveness.
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Affiliation(s)
- B M Razavi
- Department of Pharmacodynamy and Toxicology, Targeted Drug Delivery Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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33
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Yuan T, Nahar P, Sharma M, Liu K, Slitt A, Aisa HA, Seeram NP. Indazole-type alkaloids from Nigella sativa seeds exhibit antihyperglycemic effects via AMPK activation in vitro. JOURNAL OF NATURAL PRODUCTS 2014; 77:2316-20. [PMID: 25299458 PMCID: PMC4208670 DOI: 10.1021/np500398m] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Indexed: 05/25/2023]
Abstract
Six rare naturally occurring indazole-type alkaloids including two new compounds, 17-O-(β-d-glucopyranosyl)-4-O-methylnigellidine (1) and nigelanoid (2), and four known compounds (3-6) were isolated from a defatted extract of Nigella sativa (black cumin) seeds. 17-O-(β-d-Glucopyranosyl)-4-O-methylnigellidine (1) increased glucose consumption by liver hepatocytes (HepG2 cells) through activation of AMP-activated protein kinase (AMPK). Also, this is the first report of compounds 4 and 6 from a natural source.
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Affiliation(s)
- Tao Yuan
- The
Key Laboratory of Plant Resources and Chemistry of Arid Zone, and
State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants
Resource Utilization, Xinjiang Technical Institute of Physics and
Chemistry, Chinese Academy of Sciences, Urumqi 830011, People’s Republic of China
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Pragati Nahar
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Meenakshi Sharma
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Ke Liu
- Center
of Pharmacogenetics, Department of Pharmaceutical Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Angela Slitt
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - H. A. Aisa
- The
Key Laboratory of Plant Resources and Chemistry of Arid Zone, and
State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants
Resource Utilization, Xinjiang Technical Institute of Physics and
Chemistry, Chinese Academy of Sciences, Urumqi 830011, People’s Republic of China
| | - Navindra P. Seeram
- Department
of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
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Shabana A, El-Menyar A, Asim M, Al-Azzeh H, Al Thani H. Cardiovascular benefits of black cumin (Nigella sativa). Cardiovasc Toxicol 2013; 13:9-21. [PMID: 22911452 DOI: 10.1007/s12012-012-9181-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Black Cumin (Nigella sativa), which belongs to the botanical family of Ranunculaceae, commonly grows in Eastern Europe, the Middle East, and Western Asia. Its ripe fruit contains tiny black seeds, known as "Al-Habba Al-Sauda" and "Al-Habba Al-Barakah" in Arabic and black seed or black cumin in English. Seeds of Nigella sativa are frequently used in folk medicine in the Middle East and some Asian countries for the promotion of good health and the treatment of many ailments. However, data for the cardiovascular benefits of black cumin are not well-established. We reviewed the literature from 1960 to March 2012 by using the following key words: "Nigella sativa," "black seeds," and "thymoquinone." Herein, we discussed the most relevant articles to find out the role of Nigella sativa in the cardiovascular diseases spectrum especially when there is a paucity of information and need of further studies in human to establish the utility of Nigella sativa in cardiovascular system protection.
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Affiliation(s)
- Adel Shabana
- Deparment of Cardiology, Hamad Medical Corporation, Doha, Qatar
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Nigella sativa: A Potential Antiosteoporotic Agent. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:696230. [PMID: 22973403 PMCID: PMC3438907 DOI: 10.1155/2012/696230] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Revised: 07/20/2012] [Accepted: 08/08/2012] [Indexed: 01/16/2023]
Abstract
Nigella sativa seeds (NS) has been used traditionally for various illnesses. The most abundant and active component of NS is thymoquinone (TQ). Animal studies have shown that NS and TQ may be used for the treatment of diabetes-induced osteoporosis and for the promotion of fracture healing. The mechanism involved is unclear, but it was postulated that the antioxidative, and anti-inflammatory activities may play some roles in the treatment of osteoporosis as this bone disease has been linked to oxidative stress and inflammation. This paper highlights studies on the antiosteoporotic effects of NS and TQ, the mechanisms behind these effects and their safety profiles. NS and TQ were shown to inhibit inflammatory cytokines such as interleukin-1 and 6 and the transcription factor, nuclear factor κB. NS and TQ were found to be safe at the current dosage for supplementation in human with precautions in children and pregnant women. Both NS and TQ have shown potential as antiosteoporotic agent but more animal and clinical studies are required to further assess their antiosteoporotic efficacies.
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Vanamala J, Kester AC, Heuberger AL, Reddivari L. Mitigation of obesity-promoted diseases by Nigella sativa and thymoquinone. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2012; 67:111-119. [PMID: 22477645 DOI: 10.1007/s11130-012-0279-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Obesity is closely associated with increased incidence of cardiovascular diseases, cancer, insulin resistance, and immune dysfunction, and thus obesity-mitigation strategies should take into account these secondary pathologies in addition to promoting weight loss. Recent studies indicate that black cumin (Nigella sativa) has cardio-protective, anti-cancer, anti-diabetic, antioxidant, and immune-modulatory properties. While black cumin and/or its major bioactive constituent, thymoquinone have demonstrated bioactivity in a variety of disease models, the mechanisms of action are largely unknown. Given the growing interest in and the use of functional foods and nutraceuticals, as well as the increase in obesity and chronic diseases worldwide, further research into the therapeutic/preventive effects of black cumin may be beneficial.
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Affiliation(s)
- Jairam Vanamala
- Department of Food Science and Human Nutrition, Colorado State University, 1571 Campus Mail, 206 Gifford Building, Fort Collins, CO 80523, USA.
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Effect of Nigella sativa on pancreatic β-cell damage in streptozotocin-induced diabetic rats. ACTA ACUST UNITED AC 2012. [DOI: 10.1097/01.ehx.0000411475.79484.90] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Yusuksawad M, Chaiyabutr N. Restoration of renal hemodynamics and functions during black cumin (Nigella sativa) administration in streptozotocin-induced diabetic rats. J Exp Pharmacol 2011; 4:1-7. [PMID: 27186112 PMCID: PMC4863313 DOI: 10.2147/jep.s26054] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Black cumin (Nigella sativa) is an ancient herbal medicine recommended by the World Health Organization. The antioxidant and antihyperglycemic effects of black cumin are well established. Amelioration of renal dysfunction in nephrotoxic rats with black cumin treatment has also been noted. However, the effect of black cumin treatment on renal dysfunction in diabetes mellitus has not been clarified. In this study, the effect of black cumin oil (BC) on changes in renal dysfunction and renal hemodynamics in streptozotocin-induced diabetic rats was evaluated. METHODS The experiments were performed in male Sprague Dawley rats, divided into four groups (seven in each group): (1) normal rats given tap water (CON); (2) normal rats administered with BC (CON-BC); (3) diabetic rats given tap water only (STZ); and (4) diabetic rats administered with BC (STZ-BC). Diabetes mellitus was induced in the rats by an injection of streptozotocin. BC was given orally at the dose of 1000 mg/kg body weight to the rat in either CON-BC or STZ-BC every day for 8 weeks. Renal hemodynamics and functions in each rat were studied. RESULTS Renal hemodynamic changes in STZ-BC rats appeared to increase in terms of glomerular filtration rate, effective renal plasma flow, and effective renal blood flow, while renal vascular resistance and filtration fraction were decreased in comparison with diabetic rats given tap water only (STZ). An improvement of renal tubular dysfunction in STZ-BC rats was indicated by the decreases in fractional excretion of water and Mg(++). CONCLUSION An administration of BC can restore changes in renal hemodynamics and renal dysfunction in streptozotocin-induced diabetic rats.
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Affiliation(s)
- Mariem Yusuksawad
- Department of Physiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Narongsak Chaiyabutr
- Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand
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Benhaddou-Andaloussi A, Martineau L, Vuong T, Meddah B, Madiraju P, Settaf A, Haddad PS. The In Vivo Antidiabetic Activity of Nigella sativa Is Mediated through Activation of the AMPK Pathway and Increased Muscle Glut4 Content. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2011; 2011:538671. [PMID: 21584245 PMCID: PMC3092603 DOI: 10.1155/2011/538671] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Revised: 01/26/2011] [Accepted: 02/15/2011] [Indexed: 12/05/2022]
Abstract
The antidiabetic effect of N. sativa seed ethanol extract (NSE) was assessed in Meriones shawi after development of diabetes. Meriones shawi were divided randomly into four groups: normal control, diabetic control, diabetic treated with NSE (2 g eq plant/kg) or with metformin (300 mg/kg) positive control, both administered by daily intragastric gavage for 4 weeks. Glycaemia and body weight were evaluated weekly. At study's end, an Oral Glucose Tolerance Test (OGTT) was performed to estimate insulin sensitivity. Upon sacrifice, plasma lipid profile, insulin, leptin, and adiponectin levels were assessed. ACC phosphorylation and Glut4 protein content were determined in liver and skeletal muscle. NSE animals showed a progressive normalization of glycaemia, albeit slower than that of metformin controls. Moreover, NSE increased insulinemia and HDL-cholesterol, compared to diabetic controls. Leptin and adiponectin were unchanged. NSE treatment decreased OGTT and tended to decrease liver and muscle triglyceride content. NSE stimulated muscle and liver ACC phosphorylation and increased muscle Glut4. These results confirm NSE's previously reported hypoglycaemic and hypolipidemic activity. More significantly, our data demonstrate that in vivo treatment with NSE exerts an insulin-sensitizing action by enhancing ACC phosphorylation, a major component of the insulin-independent AMPK signaling pathway, and by enhancing muscle Glut4 expression.
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Affiliation(s)
- Ali Benhaddou-Andaloussi
- Department of Pharmacology and Montreal Diabetes Research Center, Université de Montréal, Montréal, QC, Canada H3C 3J7
- Institut des Nutraceutiques et des Aliments Fonctionnels, Laval University, Quebec City, QC, Canada G1K7P4
| | - Louis Martineau
- Department of Pharmacology and Montreal Diabetes Research Center, Université de Montréal, Montréal, QC, Canada H3C 3J7
- Institut des Nutraceutiques et des Aliments Fonctionnels, Laval University, Quebec City, QC, Canada G1K7P4
| | - Tri Vuong
- Department of Pharmacology and Montreal Diabetes Research Center, Université de Montréal, Montréal, QC, Canada H3C 3J7
- Institut des Nutraceutiques et des Aliments Fonctionnels, Laval University, Quebec City, QC, Canada G1K7P4
| | - Bouchra Meddah
- Research Team in Pharmacokinetics, Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat-Souissi, Morocco
| | - Padma Madiraju
- Department of Pharmacology and Montreal Diabetes Research Center, Université de Montréal, Montréal, QC, Canada H3C 3J7
- Institut des Nutraceutiques et des Aliments Fonctionnels, Laval University, Quebec City, QC, Canada G1K7P4
| | - Abdellatif Settaf
- Research Team in Pharmacokinetics, Laboratory of Pharmacology and Toxicology, Faculty of Medicine and Pharmacy, Mohammed V University, Rabat-Souissi, Morocco
| | - Pierre S. Haddad
- Department of Pharmacology and Montreal Diabetes Research Center, Université de Montréal, Montréal, QC, Canada H3C 3J7
- Institut des Nutraceutiques et des Aliments Fonctionnels, Laval University, Quebec City, QC, Canada G1K7P4
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Al-Aboudi A, Afifi FU. Plants used for the treatment of diabetes in Jordan: a review of scientific evidence. PHARMACEUTICAL BIOLOGY 2011; 49:221-239. [PMID: 20979537 DOI: 10.3109/13880209.2010.501802] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
CONTEXT Diabetes is a serious disease which has reached epidemic proportions in many parts of the world. Despite the tremendous developments in medicinal chemistry, traditional medicine is still a common practice for the treatment of diabetes. OBJECTIVES In Jordanian traditional medicine, 69 plant species are used by diabetic patients to reduce glucose levels in blood. The aim of the present study is to report these plants and link their traditional use with scientific evidence confirming their claimed activity. The plant part(s) used, method(s) of preparation, common Arabic names, and other ethnopharmacological uses are also listed. MATERIALS AND METHODS The literature and databases (SciFinder, PubMed, ScienceDirect and Scirus) have been thoroughly investigated and the plants used have been grouped according to the reported scientific evidence. RESULTS Results showed that 40 plants have been reported to possess hypoglycemic activities in in vivo/in vitro experiments. Five plant species did not exhibit in vivo hypoglycemic activity, while 24 plants had not been studied for such an activity. Twenty plants had been screened for their α-amylase/α-glucosidase inhibitory activities. DISCUSSION The reported in vivo and in vitro hypoglycemic as well as α-amylase/α-glucosidase inhibitory activities of these plants are discussed. CONCLUSION Additional in vitro and in vivo studies are needed to test the hypoglycemic activity of the plants with claimed antidiabetic activity which has not yet been evaluated. Identification of the active ingredients of potent plants might generate lead compounds in drug discovery and development.
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Affiliation(s)
- Amal Al-Aboudi
- Department of Chemistry, Faculty of Science, University of Jordan, Amman
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Al-Logmani A, Zari T. Long-term effects of Nigella sativa L. oil on some physiological parameters in normal and streptozotocin-induced diabetic rats. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/jdm.2011.13007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Benhaddou-Andaloussi A, Martineau LC, Vallerand D, Haddad Y, Afshar A, Settaf A, Haddad PS. Multiple molecular targets underlie the antidiabetic effect of Nigella sativa seed extract in skeletal muscle, adipocyte and liver cells. Diabetes Obes Metab 2010; 12:148-57. [PMID: 19788435 DOI: 10.1111/j.1463-1326.2009.01131.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM Nigella sativa (N. sativa) is a plant widely used in traditional medicine of North African countries. During the last decade, several studies have shown that extracts from the seeds of N. sativa have antidiabetic effects. METHODS Our group has recently demonstrated that N. sativa seed ethanol extract (NSE) induces an important insulin-like stimulation of glucose uptake in C2C12 skeletal muscle cells and 3T3-L1 adipocytes following an 18 h treatment. The purpose of the present study was to elucidate the pathways mediating this insulin-like effect and the mechanisms through which these pathways are activated. RESULTS Results from western immunoblot experiments indicate that in C2C12 cells as well as in H4IIE hepatocytes, but not in 3T3-L1 cells, NSE increases activity of Akt, a key mediator of the effects of insulin, and activity of AMP-activated protein kinase (AMPK), a master metabolic regulating enzyme. To test whether the activation of AMPK resulted from a disruption of mitochondrial function, the effects of NSE on oxygen consumption were assessed in isolated liver mitochondria. NSE was found to exhibit potent uncoupling activity. CONCLUSION Finally, to provide an explanation for the effects of NSE in adipocytes, PPARgamma stimulating activity was tested using a reporter gene assay. Results indicate that NSE behaves as an agonist of PPARgamma. The data supports the ethnobotanical use of N. sativa seed oil as a treatment for diabetes, and suggests potential uses of this product, or compounds derived thereof, against obesity and the metabolic syndrome.
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Affiliation(s)
- A Benhaddou-Andaloussi
- Natural Health Products and Metabolic Diseases Laboratory, Department of Pharmacology and Montreal Diabetes Research Centre, Université de Montréal, Montreal, Quebec, Canada H3C 3J7
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Chandra S, Murthy SN, Mondal D, Agrawal KC. Therapeutic effects of Nigella sativa on chronic HAART-induced hyperinsulinemia in rats. Can J Physiol Pharmacol 2009; 87:300-9. [PMID: 19370083 DOI: 10.1139/y09-014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Prolonged use of highly active antiretroviral therapy (HAART) is associated with insulin resistance in HIV-1-positive patients. Small animal models that recapitulate the long-term effects of HAART may facilitate the identification of therapeutic agents to suppress these side effects. We investigated the protective effects of black seed oil (BSO) from Nigella sativa in Sprague-Dawley rats treated with a daily HAART regimen for 7 months. The antiretroviral drugs, consisting of nelfinavir (200 mg/kg), zidovudine (50 mg/kg), and efavirenz (20 mg/kg), were mixed with diet with or without BSO (400 microL/kg) supplementation. Significant increases in insulin and C-peptide levels were observed in HAART-treated groups, and concomitant BSO treatment reduced this hyperinsulinemia. Interestingly, HAART-treated rats showed reduced size of pancreatic islets that was not seen in BSO-exposed rats. In vitro studies showed that nelfinavir, alone and in combination with HAART, induced oxidative stress and decreased glucose-induced insulin production in INS-1 cells. Suppressed insulin production was restored in cells coexposed to either BSO or thymoquinone. Our findings demonstrated that chronic HAART may increase serum insulin levels by dysregulating both insulin production by beta cells and insulin action at the periphery. These deleterious effects may be prevented by dietary supplementation with BSO.
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Affiliation(s)
- Surabhi Chandra
- Department of Pharmacology, Tulane University Health Sciences Center, 1430 Tulane Avenue, SL-83, New Orleans, LA 70112, USA
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Abstract
Nigella sativa (N. sativa) decreases DNA damage and thereby prevents initiation of carcinogenesis in colonic tissue secondary to exposure to toxic agents such as azoxymethane. N. sativa is of immense therapeutic benefit in diabetic individuals and those with glucose intolerance as it accentuates glucose-induced secretion of insulin besides having a negative impact on glucose absorption from the intestinal mucosa. N. sativa administration protects hepatic tissue from deleterious effects of toxic metals such as lead, and attenuates hepatic lipid peroxidation following exposure to chemicals such as carbon tetrachloride.
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Alsaif MA. Effect of N. sativa oil on impaired glucose tolerance and insulin insensitivity induced by high-fat-diet and turpentine-induced trauma. Pak J Biol Sci 2008; 11:1093-1099. [PMID: 18819546 DOI: 10.3923/pjbs.2008.1093.1099] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The aim of this study was to investigate the effect of N. sativa oil on impaired glucose tolerance and insulin insensitivity induced by high-fat diet and trauma. Three dietary groups were used in this study; Rat-Chow (RC), N. sativa oil diet (Combination 4% N. sativa oil and 16% butter oil) (NSOD) and 20% Butter Oil Diet (BOD). Each group was subdivided in two groups; control and trauma. Diets were supplemented for five consecutive weeks body weight increase per week was calculated. At end of the dietary treatments, single dose (2 mL kg(-1) body weight) of turpentine was injected in the dorso-lumber region. Intravenous glucose tolerance test (i.v. GTT) was performed, insulinogenic index and insulin sensitivity was measured. The results showed butter oil diet significantly increased the body weights and visceral fats compared other two groups, respectively. Fasting glucose levels did not change in trauma induced rats while insulin levels increased significantly and it found highest in butter oil diet fed animals. Impaired glucose tolerance was found sever in BOD fed traumatized rats. N. sativa oil diet protected impaired glucose tolerance and insulin insensitivity induced either via saturated fatty acids or injury. In conclusion, N. sativa oil may be used in post surgery diabetic patients to prevent the long going adverse effects from surgical trauma.
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Affiliation(s)
- Mohammed A Alsaif
- Department of Community Health Sciences, College of Applied Medical Sciences, P.O. Box 10219, King Saud University, Riyadh-11433, Saudi Arabia
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Abstract
Thymoquinone (TQ) is the bioactive constituent of the volatile oil of Nigella sativa L. and has been shown to exert antioxidant antineoplastic and anti-inflammatory effects. During the study of its possible mechanism of action, we found that TQ reacts chemically (i.e. nonenzymatically) with glutathione (GSH), NADH and NADPH. A combination of liquid chromatography/UV-Vis spectrophotometry/Mass spectrometry analyses was used to identify the products of these reactions. The reaction that occur in physiological conditions indicates the formation of only two products, glutathionyl-dihydrothymoquinone after rapid reaction with GSH, and dihydrothymoquinone (DHTQ) after slow reaction time with NADH and NADPH. Measurement of the antioxidant activity of reduced compounds against organic radicals such as 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid)(ABTS) and 1,1-diphenyl-2-picrylhydrazyl (DPPH) also revealed a potential scavenging activity for glutathionyl-dihydrothymoquinone similar to that of DHTQ. Under our experimental conditions, TQ shows lower scavenging activities than glutathionyl-dihydrothymoquinone and DHTQ; it is very interesting to observe that the reduced compounds apparently show an antioxidant capacity equivalent to Trolox. The results indicate a possible intracellular nonenzymatic metabolic activation of TQ dependent on GSH, NADH or NADPH that may represent a "cellular switch" able to modulate cellular antioxidant defences.
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Affiliation(s)
- K H Khalife
- Department of Biology MCA, University of Camerino, Camerino, Italy
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Tahraoui A, El-Hilaly J, Israili ZH, Lyoussi B. Ethnopharmacological survey of plants used in the traditional treatment of hypertension and diabetes in south-eastern Morocco (Errachidia province). JOURNAL OF ETHNOPHARMACOLOGY 2007; 110:105-17. [PMID: 17052873 DOI: 10.1016/j.jep.2006.09.011] [Citation(s) in RCA: 267] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2005] [Revised: 09/12/2006] [Accepted: 09/15/2006] [Indexed: 05/12/2023]
Abstract
This survey was undertaken in the Errachidia province in south-eastern Morocco in order to inventory the main medicinal plants used in folk medicine to treat arterial hypertension and diabetes mellitus. Four hundred individuals who knew about and/or had used the medicinal plants for the indicated diseases, including some herbal healers, were interviewed throughout different regions of the province. The inventory of medicinal plants is summarized in a synoptic table, which contains the scientific, vernacular and common name of the plant, its ecological distribution, the part of the plant and the preparation used and the therapeutic indication. Extensive investigations have brought to light 64 medicinal plants belonging to 33 families; of these, 45 are used for diabetes, 36 for hypertension, and 18 for both diseases. Of these plants, 34% grow in the wild, 44% are cultivated, and 22% are not indigenous to the area and are brought from other parts of Morocco or from outside the country. The survey shows that 78% of the patients regularly use these medicinal plants. In this region, the most frequently used plants to treat diabetes include Ajuga iva, Allium cepa, Artemisia herba-alba, Carum carvi, Lepidium sativum, Nigella sativa, Olea europaea, Peganum harmala, Phoenix dactylifera, Rosmarinus officinalis, and Zygophyllum gaetulum, and those to treat hypertension include Ajuga iva, Allium cepa, Allium sativum, Artemisia herba-alba Asso, Carum carvi, Nigella sativa, Olea europea, Rosmarinus officinalis, Origanum majorana, Peganum harmala, and Phoenix dactylifera. The local people recognize the toxic plants and are very careful in using such plants, which are Citrullus colocynthis, Datura stramonium, Nerium oleander, Nigella sativa, Peganum harmala and Zygophyllum gaetulum. Our survey shows that traditional medicine in the south-eastern Moroccan population has not only survived but has thrived in the transcultural environment and intermixture of many ethnic traditions and beliefs.
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Affiliation(s)
- A Tahraoui
- UFR Physiology-Pharmacology, Laboratory of Animal Physiology, Department of Biology, Faculty of Sciences, Dhar El Mehraz, USMBA, BP 1976 Atlas Fez, Morocco
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Hussein El-Tahir KED, Bakeet DM. The Black Seed Nigella sativa Linnaeus - A Mine for Multi Cures: A Plea for Urgent Clinical Evaluation of its Volatile Oil. J Taibah Univ Med Sci 2006. [DOI: 10.1016/s1658-3612(06)70003-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Fararh KM, Shimizu Y, Shiina T, Nikami H, Ghanem MM, Takewaki T. Thymoquinone reduces hepatic glucose production in diabetic hamsters. Res Vet Sci 2005; 79:219-23. [PMID: 16054891 DOI: 10.1016/j.rvsc.2005.01.001] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2004] [Revised: 12/07/2004] [Accepted: 01/14/2005] [Indexed: 11/22/2022]
Abstract
The aim of this study was to elucidate the mechanisms underlying the glucose lowering effects of thymoquinone in streptozotocin (STZ)-induced diabetic hamsters in terms of hepatic glucose production. Diabetes was induced by intraperitoneal injection of 65 mg/kg body weight of STZ. Treatment with thymoquinone commenced 4 weeks after induction of diabetes at a daily dose of 50 mg/kg body weight by gastric gauge. Blood glucose and glycated hemoglobin levels were significantly reduced depending on periods of the treatment. Thirty days after commencement of thymoquinone-treatment, hepatocytes were isolated using collagenase to determine liver glucose production. Glucose production after 2 h incubation of the isolated hepatocytes with gluconeogenic precursors (alanine, glycerol and lactate) was significantly lower in hamsters treated with thymoquinone as compared to that in vehicle controls. The results of this study demonstrate that the antidiabetic action of thymoquinone is at least partially mediated through a decrease in hepatic gluconeogenesis.
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Affiliation(s)
- K M Fararh
- Department of Clinical Pathology, Faculty of Veterinary Medicine, Zagazig Univesity/Benha, Egypt
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