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Cho HK, Park CG, Lim HB. Construction of a Synergy Combination Model for Turmeric ( Curcuma longa L.) and Black Pepper ( Piper nigrum L.) Extracts: Enhanced Anticancer Activity against A549 and NCI-H292 Human Lung Cancer Cells. Curr Issues Mol Biol 2024; 46:5551-5560. [PMID: 38921003 PMCID: PMC11201915 DOI: 10.3390/cimb46060332] [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: 04/15/2024] [Revised: 05/24/2024] [Accepted: 05/30/2024] [Indexed: 06/27/2024] Open
Abstract
Extensive research on medicinal herbs for bioactive compounds proposes that they could replace synthetic drugs, reducing side effects and economic burdens. Especially, interest in the synergistic benefits of natural products is increasing, implying that their combined use may enhance therapeutic effectiveness. This study aimed to explore the synergetic effects of turmeric (Curcuma longa L.) and black pepper (Piper nigrum L.) extract on lung normal (MRC-5) and cancer (A549 and NCI-H292) cell lines. The turmeric extract (TM) only affected the lung cancer cell lines, but it had no impact on the MRC-5 cell line. On the other hand, the black pepper extract (BP) did not cause any damage to either the lung normal or cancer cell lines, even at concentrations of up to 400 µg/mL. Response surface methodology was used to predict the ideal synergistic concentrations (EC50) of TM and BP, which were found to be 48.5 and 241.7 µg/mL, respectively. Notably, the selected condition resulted in higher cytotoxicity compared to the exposure to TM alone, indicating a potent synergetic effect. The rate of curcumin degradation under this combined treatment was significantly decreased to 49.72 ± 5.00 nmol/h/µg for A549 cells and 47.53 ± 4.78 nmol/h/µg for NCI-H292 cells, respectively, as compared to curcumin alone. Taken together, this study confirmed the potent synergistic effect of TM and BP on lung cancer cell lines. Further research is required to identify their specific synergetic mechanisms. Our findings provide crucial foundational data on the synergistic effects of TM and BP.
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Affiliation(s)
- Hyun-Ki Cho
- Environmental Safety Group, Korea Institute of Science and Technology (KIST–Europe), 66123 Saarbrucken, Germany;
| | - Chang-Gyun Park
- Division of Experimental Neurosurgery, Department of Neurosurgery, Heidelberg University Hospital, 69120 Heidelberg, Germany;
| | - Heung-Bin Lim
- Department of Industrial Plant Science & Technology, Chungbuk National University, Cheongju 28644, Republic of Korea
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2
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Ji J, Ma Z, Wang Y. Advancing Gastrointestinal Health: Curcumin's Efficacy and Nanopreparations. Molecules 2024; 29:1659. [PMID: 38611938 PMCID: PMC11013328 DOI: 10.3390/molecules29071659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 04/03/2024] [Accepted: 04/04/2024] [Indexed: 04/14/2024] Open
Abstract
Curcumin (CCM) is a polyphenol compound extracted from the turmeric rhizome. It has various biological activities, including antibacterial, anti-inflammatory, anti-cancer, and antioxidant. Due to its diverse activities, it is often used by researchers to study the therapeutic effects on various diseases. However, its poor solubility leads to poor bioavailability, and it is necessary to increase the water solubility with the help of carriers to improve the therapeutic effect. Gastrointestinal disease is a major global health problem that continues to affect human health. In this review, we have summarized the possible mechanism and therapeutic effect of CCM in various gastrointestinal diseases, and the improvement in the curative effect of CCM with nanopreparation. Finally, we concluded that there have been many clinical trials of CCM in combination with other drugs for the treatment of gastrointestinal disease, but so far, few have used CCM nanomaterials for treatment. Although in vitro and preclinical experiments have shown that nanopreparations can improve the efficacy of CCM, there are still insufficient studies on the safety of carriers.
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Affiliation(s)
- Jialin Ji
- School of Clinical Medicine, Shandong Second Medical University, Weifang 261053, China;
| | - Zhaojie Ma
- School of Humanities and Medicine, Shandong Second Medical University, Weifang 261053, China;
| | - Yingshuai Wang
- School of Life Science and Technology, Shandong Second Medical University, Weifang 261053, China
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3
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Lu H, Gong H, Du J, Gao W, Xu J, Cai X, Yang Y, Xiao H. Piperine ameliorates psoriatic skin inflammation by inhibiting the phosphorylation of STAT3. Int Immunopharmacol 2023; 119:110221. [PMID: 37121114 DOI: 10.1016/j.intimp.2023.110221] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 04/09/2023] [Accepted: 04/18/2023] [Indexed: 05/02/2023]
Abstract
Psoriasis is a common chronic inflammatory skin disease that is easy to relapse and difficult to cure. Piperine is the main alkaloid extracted from black pepper, and its role in psoriasis has not been previously reported. We identified that piperine ameliorated M5-induced psoriatic skin lesions. Furthermore, piperine alleviated psoriasis pathological features including epidermal hyperplasia and inflammatory cell infiltration, decreased the expression of psoriasis-characteristic cytokines, chemokines and proteins in IMQ-induced psoriasiform dermatitis. Moreover, we determined that piperine inhibited the phosphorylation of STAT3 in M5- and IMQ-induced psoriasis-like skin lesions. Our data demonstrated that piperine ameliorated psoriatic skin inflammation by inhibiting the phosphorylation of STAT3. Therefore, piperine may be one potential compound candidate for psoriasis therapy, providing new strategies for clinical intervention.
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Affiliation(s)
- Hui Lu
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, PR China.
| | - Hongjian Gong
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, PR China
| | - Juan Du
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, PR China
| | - Wenqi Gao
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, PR China
| | - Jia Xu
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, PR China
| | - Xiaonan Cai
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, PR China
| | - Yuan Yang
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, PR China.
| | - Han Xiao
- Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430015, PR China.
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4
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Heidari H, Bagherniya M, Majeed M, Sathyapalan T, Jamialahmadi T, Sahebkar A. Curcumin-piperine co-supplementation and human health: A comprehensive review of preclinical and clinical studies. Phytother Res 2023; 37:1462-1487. [PMID: 36720711 DOI: 10.1002/ptr.7737] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 02/02/2023]
Abstract
Curcumin is extracted from the rhizomes Curcuma longa L. It is known for its anti-inflammatory and anti-oxidant activities. Despite its safety and potential for use against various diseases, curcumin's utility is restricted due to its low oral bioavailability. Co-administration of curcumin along with piperine could potentially improve the bioavailability of curcumin. The present review aimed to provide an overview of the efficacy and safety of curcumin-piperine co-supplementation in human health. The findings of this comprehensive review show the beneficial effects of curcumin-piperine in improving glycemic indices, lipid profile and antioxidant status in diabetes, improving the inflammatory status caused by obesity and metabolic syndrome, reducing oxidative stress and depression in chronic stress and neurological disorders, also improving chronic respiratory diseases, asthma and COVID-19. Further high-quality clinical trial studies are needed to firmly establish the clinical efficacy of the curcumin-piperine supplement.
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Affiliation(s)
- Hajar Heidari
- Department of Clinical Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad Bagherniya
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Thozhukat Sathyapalan
- Academic Diabetes, Endocrinology and Metabolism, Hull York Medical School, University of Hull, Hull, United Kingdom
| | - Tannaz Jamialahmadi
- Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,School of Medicine, The University of Western Australia, Perth, Western Australia, Australia.,Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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5
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Boonrueng P, Wasana PWD, Hasriadi, Vajragupta O, Rojsitthisak P, Towiwat P. Combination of curcumin and piperine synergistically improves pain-like behaviors in mouse models of pain with no potential CNS side effects. Chin Med 2022; 17:119. [PMID: 36274168 PMCID: PMC9590184 DOI: 10.1186/s13020-022-00660-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 08/25/2022] [Indexed: 11/26/2022] Open
Abstract
Background Curcumin and piperine are major bioactive compounds of Curcuma longa and Piper nigrum, widely consumed as spices and flock medicine. The combinational use of these plants is a common practice in Southeast Asia. Synergism between curcumin and piperine has been found in several animal models but not in periodontal disease and diabetes, and the antinociceptive interaction is still unknown. Hence, the present study aimed to assess the interaction between curcumin and piperine in pain and its potential CNS side effect profile. Methods Formalin test and in vitro LPS-stimulated RAW 264.7 macrophage cells were used to assess the synergistic interaction of curcumin and piperine in a mouse model of inflammatory pain. Tail-flick and cold plate tests were applied to determine the antinociceptive synergism between piperine and curcumin. The interaction was determined by applying isobolographic analysis. The potential CNS-side effects of the curcumin and piperine combination were also assessed using LABORAS automated home-cage behavioral analysis. Results Curcumin alone dose-dependently improved pain-like behaviors in the formalin, tail-flick, and cold plate tests with the ED50 of 71.4, 34.4, and 31.9 mg/kg, respectively. Additionally, piperine exhibited efficacy in the formalin, tail-flick, and cold plate tests with the ED50 of 18.4, 8.1, and 28.1 mg/kg, respectively. The combination of curcumin and piperine (1:1 ED50 ratio) produced synergistic interaction in the formalin, tail-flick, and cold plate tests as assessed significantly lower experimental ED50 values (5.9, 5.2, and 5.5 mg/kg) compared to theoretical ED50 values (44.9, 21.3, and 30.0 mg/kg), isobologram analysis, and interaction index values of 0.13, 0.24 and 0.18, respectively. The synergistic interaction of curcumin and piperine was further confirmed by the efficacy of the combination in LPS-stimulated RAW 264.7 macrophage cells. Curcumin and piperine interacted synergistically, reducing proinflammatory mediators. The combination also demonstrated better compatibility profiles with neuronal cells. Furthermore, the curcumin-piperine combination had no effects on mouse spontaneous locomotor behaviors in LABORAS automated home cage monitoring. Conclusion Overall, the present study demonstrates strong antinociceptive synergism between curcumin and piperine in mouse models with no potential CNS side effects, suggesting its possible use in clinical trials.
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Phyto-Therapeutic and Nanomedicinal Approaches: A New Hope for Management of Alzheimer's Disease. Int J Pharm 2022; 627:122213. [PMID: 36179926 DOI: 10.1016/j.ijpharm.2022.122213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 08/08/2022] [Accepted: 09/16/2022] [Indexed: 11/22/2022]
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7
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Bahrami A, Montecucco F, Carbone F, Sahebkar A. Effects of Curcumin on Aging: Molecular Mechanisms and Experimental Evidence. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8972074. [PMID: 34692844 PMCID: PMC8528582 DOI: 10.1155/2021/8972074] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/21/2021] [Accepted: 09/30/2021] [Indexed: 01/01/2023]
Abstract
Aging is characterized by a progressive inability to maintain homeostasis, self-repair, renewal, performance, and fitness of different tissues throughout the lifespan. Senescence is occurring following enormous intracellular or extracellular stress stimuli. Cellular senescence serves as an antiproliferative process that causes permanent cell cycle arrest and restricts the lifespan. Senescent cells are characterized by terminal cell cycle arrest, enlarged lysosome, and DNA double-strand breaks as well as lipofuscin granularity, senescence-associated heterochromatin foci, and activation of DNA damage response. Curcumin, a hydrophobic polyphenol, is a bioactive chemical constituent of the rhizomes of Curcuma longa Linn (turmeric), which has been extensively used for the alleviation of various human disorders. In addition to its pleiotropic effects, curcumin has been suggested to have antiaging features. In this review, we summarized the therapeutic potential of curcumin in the prevention and delaying of the aging process.
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Affiliation(s)
- Afsane Bahrami
- Clinical Research Development Unit of Akbar Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
- Clinical Research Unit, Imam Reza Hospital, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fabrizio Montecucco
- IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, 10 Largo Benzi, 16132 Genoa, Italy
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy
| | - Federico Carbone
- IRCCS Ospedale Policlinico San Martino Genoa-Italian Cardiovascular Network, 10 Largo Benzi, 16132 Genoa, Italy
- First Clinic of Internal Medicine, Department of Internal Medicine, University of Genoa, 6 viale Benedetto XV, 16132 Genoa, Italy
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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8
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Thymoquinone and Curcumin Defeat Aging-Associated Oxidative Alterations Induced by D-Galactose in Rats' Brain and Heart. Int J Mol Sci 2021; 22:ijms22136839. [PMID: 34202112 PMCID: PMC8268720 DOI: 10.3390/ijms22136839] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/09/2021] [Accepted: 06/18/2021] [Indexed: 01/17/2023] Open
Abstract
D-galactose (D-gal) administration causes oxidative disorder and is widely utilized in aging animal models. Therefore, we subcutaneously injected D-gal at 200 mg/kg BW dose to assess the potential preventive effect of thymoquinone (TQ) and curcumin (Cur) against the oxidative alterations induced by D-gal. Other than the control, vehicle, and D-gal groups, the TQ and Cur treated groups were orally supplemented at 20 mg/kg BW of each alone or combined. TQ and Cur effectively suppressed the oxidative alterations induced by D-gal in brain and heart tissues. The TQ and Cur combination significantly decreased the elevated necrosis in the brain and heart by D-gal. It significantly reduced brain caspase 3, calbindin, and calcium-binding adapter molecule 1 (IBA1), heart caspase 3, and BCL2. Expression of mRNA of the brain and heart TP53, p21, Bax, and CASP-3 were significantly downregulated in the TQ and Cur combination group along with upregulation of BCL2 in comparison with the D-gal group. Data suggested that the TQ and Cur combination is a promising approach in aging prevention.
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9
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Leena MM, Silvia MG, Vinitha K, Moses JA, Anandharamakrishnan C. Synergistic potential of nutraceuticals: mechanisms and prospects for futuristic medicine. Food Funct 2021; 11:9317-9337. [PMID: 33211054 DOI: 10.1039/d0fo02041a] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Nutraceuticals are valued for their therapeutic effects and numerous health benefits. In recent years, several studies have demonstrated their superior performances when co-delivered; the concept of synergism has been established for various bioactives. Apart from improvements in the bioavailability of partnering compounds, this approach can protect the radical scavenging potential and biological effects of individual compounds. In this review, the intricate mechanisms that promote synergistic effects when bioactive compounds are co-delivered are detailed. Importantly, a range of potential medical applications that have been established through such synergistic effects is presented, emphasizing recent developments in this field. Also, a section has been devoted to highlighting perspectives on co-encapsulation at the nanoscale for improved synergistic benefits. While prospects for the treatment of chronic diseases are well-demonstrated, several challenges and safety concerns remain, and these have been discussed, providing recommendations for future research.
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Affiliation(s)
- M Maria Leena
- Computational Modeling and Nanoscale Processing Unit, Indian Institute of Food Processing Technology (IIFPT), Ministry of Food Processing Industries, Government of India, Thanjavur - 613005, Tamil Nadu, India.
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10
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Berry A, Collacchi B, Masella R, Varì R, Cirulli F. Curcuma Longa, the "Golden Spice" to Counteract Neuroinflammaging and Cognitive Decline-What Have We Learned and What Needs to Be Done. Nutrients 2021; 13:1519. [PMID: 33946356 PMCID: PMC8145550 DOI: 10.3390/nu13051519] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 04/26/2021] [Accepted: 04/26/2021] [Indexed: 12/11/2022] Open
Abstract
Due to the global increase in lifespan, the proportion of people showing cognitive impairment is expected to grow exponentially. As target-specific drugs capable of tackling dementia are lagging behind, the focus of preclinical and clinical research has recently shifted towards natural products. Curcumin, one of the best investigated botanical constituents in the biomedical literature, has been receiving increased interest due to its unique molecular structure, which targets inflammatory and antioxidant pathways. These pathways have been shown to be critical for neurodegenerative disorders such as Alzheimer's disease and more in general for cognitive decline. Despite the substantial preclinical literature on the potential biomedical effects of curcumin, its relatively low bioavailability, poor water solubility and rapid metabolism/excretion have hampered clinical trials, resulting in mixed and inconclusive findings. In this review, we highlight current knowledge on the potential effects of this natural compound on cognition. Furthermore, we focus on new strategies to overcome current limitations in its use and improve its efficacy, with attention also on gender-driven differences.
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Affiliation(s)
- Alessandra Berry
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy;
| | - Barbara Collacchi
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy;
| | - Roberta Masella
- Center for Gender-specific Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; (R.M.); (R.V.)
| | - Rosaria Varì
- Center for Gender-specific Medicine, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy; (R.M.); (R.V.)
| | - Francesca Cirulli
- Center for Behavioral Sciences and Mental Health, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy;
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11
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Mathimaran A, Kumar A, Prajapati G, Ampapathi RS, Bora HK, Guha R. Partially saturated canthaxanthin alleviates aging-associated oxidative stress in D-galactose administered male wistar rats. Biogerontology 2020; 22:19-34. [PMID: 32926226 DOI: 10.1007/s10522-020-09898-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 09/05/2020] [Indexed: 01/03/2023]
Abstract
It has been earlier reported that partially saturated canthaxanthin (PSC) from Aspergillus carbonarius mutant is non-toxic, has anti-lipid peroxidation activity and can induce apoptosis in prostate cancer cell lines. In the present study, the antiaging effect of PSC was explored in D-galactose administered male wistar rats. 8-10 weeks old, male wistar rats were randomly divided into (i) Vehicle Control Group (VCG), (ii) Aged Control Group (ACG), (iii) Aged + α Lipoic Acid Group (ALG) and (iv) Aged + Partially saturated canthaxanthin Group (APG). Rats received D-galactose (300 mg /kg bwt/day; i.p.) alone (ACG) or together with PSC (APG) (20 mg/kg bwt/day; oral) and α Lipoic Acid (ALG) (80 mg/kg bwt/day; oral) for 10 weeks. Rats in VCG were injected with the same volume of physiological saline (i.p.) and fed with olive oil (vehicle). In vitro protein oxidation and DNA oxidation inhibition, in vivo malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), acetylcholinesterase (AChE) and monoamine oxidase (MAO) activities were determined. In addition, brain neurotransmitters, dopamine and serotonin were estimated by NMR. PSC treatment showed inhibition against protein and DNA oxidation. PSC effectively improved D-galactose induced aging rats by inducing a protective effect through up-regulation of glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), catalase (CAT) and brain neurotransmitters and downregulated malondialdehyde (MDA) and monoamineoxidase (MAO) levels. Thus, PSC appears to be a functional compound having antioxidant and antiaging properties.
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Affiliation(s)
- Ahila Mathimaran
- Department of Biotechnology, Periyar Maniammai Institute of Science & Technology, Vallam, Thanjavur, Tamil Nadu, India.,Laboratory Animal Facility, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, Uttar Pradesh, India
| | - Anbarasu Kumar
- Department of Biotechnology, Periyar Maniammai Institute of Science & Technology, Vallam, Thanjavur, Tamil Nadu, India.
| | - Gurudayal Prajapati
- Sophisticated Analytical Instrument Facility, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, Uttar Pradesh, India
| | - Ravi S Ampapathi
- Sophisticated Analytical Instrument Facility, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, Uttar Pradesh, India.,CSIR-Academy of Scientific and Innovative Research (CSIR-AcSIR), Ghaziabad, Uttar Pradesh, India
| | - Himangsu K Bora
- Laboratory Animal Facility, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, Uttar Pradesh, India
| | - Rajdeep Guha
- Laboratory Animal Facility, CSIR-Central Drug Research Institute (CSIR-CDRI), Lucknow, Uttar Pradesh, India. .,CSIR-Academy of Scientific and Innovative Research (CSIR-AcSIR), Ghaziabad, Uttar Pradesh, India.
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12
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The effect of curcumin on cognition in Alzheimer's disease and healthy aging: A systematic review of pre-clinical and clinical studies. Brain Res 2019; 1725:146476. [PMID: 31560864 DOI: 10.1016/j.brainres.2019.146476] [Citation(s) in RCA: 103] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 08/27/2019] [Accepted: 09/24/2019] [Indexed: 12/21/2022]
Abstract
Alzheimer's disease constitutes a growing cause of cognitive impairment in aging population. Given that current treatments do not produce the desired therapeutic effects, the need for finding alternative biological and pharmacological approaches is critical. Accumulating evidence suggests inflammatory and oxidative stress responses as potential causal factors of cognitive impairments in Alzheimer's disease and healthy aging. Curcumin has received increased interest due to its unique molecular structure that targets inflammatory and antioxidant pathways as well as (directly) amyloid aggregation; one of the major hallmarks of Alzheimer's disease. Therefore, this review summarizes preclinical and clinical findings on curcumin as a potential cognitive enhancer in Alzheimer's disease and normal aging. Databases used for literature searches include PubMed, EMBASE and Web of Science; in addition, clinicaltrials.gov was used to search for clinical studies. Overall, animal research has shown very promising results in potentiating cognition, both physiologically and behaviourally. However, human studies are limited and results are less consistent, complicating their interpretation. These inconsistencies may be related to differences in methodology and the included population. Taking into account measurements of important inflammatory and antioxidant biomarkers, optimal dosages of curcumin, food interactions, and duration of treatment would increase our understanding on curcumin's promising effects on cognition. In addition, increasing curcumin's bioavailability could benefit future research.
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13
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D-Galactose-induced accelerated aging model: an overview. Biogerontology 2019; 20:763-782. [PMID: 31538262 DOI: 10.1007/s10522-019-09837-y] [Citation(s) in RCA: 219] [Impact Index Per Article: 43.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 09/17/2019] [Indexed: 02/06/2023]
Abstract
To facilitate the process of aging healthily and prevent age-related health problems, efforts to properly understand aging mechanisms and develop effective and affordable anti-aging interventions are deemed necessary. Systemic administration of D-galactose has been established to artificially induce senescence in vitro and in vivo as well as for anti-aging therapeutic interventions studies. The aim of this article is to comprehensively discuss the use of D-galactose to generate a model of accelerated aging and its possible underlying mechanisms involved in different tissues/organs.
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14
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Bielak-Zmijewska A, Grabowska W, Ciolko A, Bojko A, Mosieniak G, Bijoch Ł, Sikora E. The Role of Curcumin in the Modulation of Ageing. Int J Mol Sci 2019; 20:E1239. [PMID: 30871021 PMCID: PMC6429134 DOI: 10.3390/ijms20051239] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 03/04/2019] [Accepted: 03/06/2019] [Indexed: 12/27/2022] Open
Abstract
It is believed that postponing ageing is more effective and less expensive than the treatment of particular age-related diseases. Compounds which could delay symptoms of ageing, especially natural products present in a daily diet, are intensively studied. One of them is curcumin. It causes the elongation of the lifespan of model organisms, alleviates ageing symptoms and postpones the progression of age-related diseases in which cellular senescence is directly involved. It has been demonstrated that the elimination of senescent cells significantly improves the quality of life of mice. There is a continuous search for compounds, named senolytic drugs, that selectively eliminate senescent cells from organisms. In this paper, we endeavor to review the current knowledge about the anti-ageing role of curcumin and discuss its senolytic potential.
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Affiliation(s)
- Anna Bielak-Zmijewska
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Wioleta Grabowska
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Agata Ciolko
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Agnieszka Bojko
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Grażyna Mosieniak
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Łukasz Bijoch
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
| | - Ewa Sikora
- Nencki Institute of Experimental Biology, Polish Academy of Sciences, 3 Pasteur St., 02-093 Warsaw, Poland.
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Chen FJ, Liu B, Wu Q, Liu J, Xu YY, Zhou SY, Shi JS. Icariin Delays Brain Aging in Senescence-Accelerated Mouse Prone 8 (SAMP8) Model via Inhibiting Autophagy. J Pharmacol Exp Ther 2019; 369:121-128. [PMID: 30837279 DOI: 10.1124/jpet.118.253310] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 02/06/2019] [Indexed: 11/22/2022] Open
Abstract
Icariin (ICA), a major flavonoid extracted from the Chinese tonic herb Epimedium, exerts beneficial effects in a variety of age-dependent diseases, such as Alzheimer's disease (AD). However, the antiaging mechanisms remain unclear. The senescence-accelerated mouse-prone 8 (SAMP8) model has been used to study age-related neurodegenerative changes associated with aging and the pathogenesis of AD. Hence, the current study was designed to examine the effect of ICA on age-related cognitive decline in SAMP8 mice and explore the role of autophagy in the ICA-mediated neuroprotection. SAMP8 mice were administered with ICA starting at 5 months of age, and the treatment lasted for 3 consecutive months. Morris water maze was used to evaluate cognitive function. The senescence-associated β-galactosidase staining was used to determine the number of senescence cells. The neuronal morphologic changes were examined via Nissl staining. The hippocampal neuronal ultrastructure was examined by transmission electron microscopy. The expression of autophagy protein was examined by Western blot. ICA-treated SAMP8 mice exhibited a robust improvement in spatial learning and memory function. Meanwhile, ICA reduced the number of senescence cells in the brains of SAMP8 mice, inhibited neuronal loss, and reversed neuronal structural changes in the hippocampi of SAMP8 mice. Moreover, ICA treatment also decreased the formation of autophagosomes in the hippocampus of SAMP8 mice, and reduced the expression of autophagy-related proteins LC3-II and p62. These results demonstrate that ICA possesses the ability to delay brain aging in SAMP8 mice, and the mechanisms are possibly mediated through the regulation of autophagy.
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Affiliation(s)
- Fa-Ju Chen
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, People's Republic of China
| | - Bo Liu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, People's Republic of China
| | - Qin Wu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, People's Republic of China
| | - Jie Liu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, People's Republic of China
| | - Yun-Yan Xu
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, People's Republic of China
| | - Shao-Yu Zhou
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, People's Republic of China
| | - Jing-Shan Shi
- Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi, People's Republic of China
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Martel J, Ojcius DM, Ko YF, Chang CJ, Young JD. Antiaging effects of bioactive molecules isolated from plants and fungi. Med Res Rev 2019; 39:1515-1552. [PMID: 30648267 DOI: 10.1002/med.21559] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 12/06/2018] [Accepted: 12/08/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Jan Martel
- Center for Molecular and Clinical Immunology, Chang Gung University; Taoyuan Taiwan Republic of China
- Chang Gung Immunology Consortium, Linkou Chang Gung Memorial Hospital; Taoyuan Taiwan, Republic of China
| | - David M. Ojcius
- Center for Molecular and Clinical Immunology, Chang Gung University; Taoyuan Taiwan Republic of China
- Chang Gung Immunology Consortium, Linkou Chang Gung Memorial Hospital; Taoyuan Taiwan, Republic of China
- Department of Biomedical Sciences; University of the Pacific, Arthur Dugoni School of Dentistry; San Francisco California
| | - Yun-Fei Ko
- Chang Gung Immunology Consortium, Linkou Chang Gung Memorial Hospital; Taoyuan Taiwan, Republic of China
- Chang Gung Biotechnology Corporation; Taipei Taiwan Republic of China
- Biochemical Engineering Research Center, Ming Chi University of Technology; New Taipei City Taiwan Republic of China
| | - Chih-Jung Chang
- Center for Molecular and Clinical Immunology, Chang Gung University; Taoyuan Taiwan Republic of China
- Chang Gung Immunology Consortium, Linkou Chang Gung Memorial Hospital; Taoyuan Taiwan, Republic of China
- Department of Medical Biotechnology and Laboratory Science; College of Medicine, Chang Gung University; Taoyuan Taiwan Republic of China
- Research Center of Bacterial Pathogenesis, Chang Gung University; Taoyuan Taiwan Republic of China
- Department of Microbiology and Immunology; College of Medicine, Chang Gung University; Taoyuan Taiwan Republic of China
| | - John D. Young
- Center for Molecular and Clinical Immunology, Chang Gung University; Taoyuan Taiwan Republic of China
- Chang Gung Immunology Consortium, Linkou Chang Gung Memorial Hospital; Taoyuan Taiwan, Republic of China
- Chang Gung Biotechnology Corporation; Taipei Taiwan Republic of China
- Biochemical Engineering Research Center, Ming Chi University of Technology; New Taipei City Taiwan Republic of China
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Sarker MR, Franks SF. Efficacy of curcumin for age-associated cognitive decline: a narrative review of preclinical and clinical studies. GeroScience 2018; 40:73-95. [PMID: 29679204 DOI: 10.1007/s11357-018-0017-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 04/09/2018] [Indexed: 02/06/2023] Open
Abstract
Processes such as aberrant redox signaling and chronic low-grade systemic inflammation have been reported to modulate age-associated pathologies such as cognitive impairment. Curcumin, the primary therapeutic component of the Indian spice, Turmeric (Curcuma longa), has long been known for its strong anti-inflammatory and antioxidant activity attributable to its unique molecular structure. Recently, an interest in this polyphenol as a cognitive therapeutic for the elderly has emerged. The purpose of this paper is to critically review preclinical and clinical studies that have evaluated the efficacy of curcumin in ameliorating and preventing age-associated cognitive decline and address the translational progress of preclinical to clinical efficacy. PubMed, semantic scholar, and Google scholar searches were used for preclinical studies; and clinicaltrials.gov , the Australian and New Zealand clinical trials registry, and PubMed search were used to select relevant completed clinical studies. Results from preclinical studies consistently demonstrate curcumin and its analogues to be efficacious for various aspects of cognitive impairment and processes that contribute to age-associated cognitive impairment. Results of published clinical studies, while mixed, continue to show promise for curcumin's use as a therapeutic for cognitive decline but overall remain inconclusive at this time. Both in vitro and in vivo studies have found that curcumin can significantly decrease oxidative stress, systemic inflammation, and obstruct pathways that activate transcription factors that augment these processes. Future clinical studies would benefit from including evaluation of peripheral and cerebrospinal fluid biomarkers of dementia and behavioral markers of cognitive decline, as well as targeting the appropriate population.
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Affiliation(s)
- Marjana Rahman Sarker
- Department of Pharmacology and Neuroscience, Graduate School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, TX, USA.
| | - Susan F Franks
- Department of Family Medicine, Texas College of Osteopathic Medicine, University of North Texas Health Science Center, Fort Worth, TX, USA
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Abstract
Alkaloids include a family of naturally occurring chemical compounds containing mostly basic nitrogen atoms. Piperine is an alkaloid present in black pepper (Piper nigrum), one of the most widely used spices, in long pepper (Piper longum), and other Piper species fruits belonging to the family of Piperaceae. Piperine is responsible for the black pepper distinct biting quality. Piperine has many pharmacological effects and several health benefits, especially against chronic diseases, such as reduction of insulin-resistance, anti-inflammatory effects, and improvement of hepatic steatosis. The aim of this chapter is to summarize the effects of piperine, alone or in combination with other drugs and phytochemicals, in chronic diseases.
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da Silva D, Magalhães T, dos Santos J, de Paula T, Modolo L, de Fátima A, Buzanello Martins C, Santos D, de Resende-Stoianoff M. Curcumin enhances the activity of fluconazole against Cryptococcus gattii
-induced cryptococcosis infection in mice. J Appl Microbiol 2015; 120:41-8. [DOI: 10.1111/jam.12966] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 09/01/2015] [Accepted: 09/29/2015] [Indexed: 01/10/2023]
Affiliation(s)
- D.L. da Silva
- Departamento de Microbiologia; ICB; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
| | - T.F.F. Magalhães
- Departamento de Microbiologia; ICB; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
| | - J.R.A. dos Santos
- Departamento de Microbiologia; ICB; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
| | - T.P. de Paula
- Departamento de Microbiologia; ICB; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
| | - L.V. Modolo
- Departamento de Botânica; ICB; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
| | - A. de Fátima
- Departamento de Química; ICEx; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
| | - C.V. Buzanello Martins
- Centro de Engenharias e Ciências Exatas; Universidade Estadual do Oeste do Paraná; Toledo PR Brazil
| | - D.A. Santos
- Departamento de Microbiologia; ICB; Universidade Federal de Minas Gerais; Belo Horizonte MG Brazil
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Turgut NH, Mert DG, Kara H, Egilmez HR, Arslanbas E, Tepe B, Gungor H, Yilmaz N, Tuncel NB. Effect of black mulberry (Morus nigra) extract treatment on cognitive impairment and oxidative stress status of D-galactose-induced aging mice. PHARMACEUTICAL BIOLOGY 2015; 54:1052-64. [PMID: 26510817 PMCID: PMC11132963 DOI: 10.3109/13880209.2015.1101476] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 09/25/2015] [Accepted: 09/25/2015] [Indexed: 05/21/2023]
Abstract
CONTEXT Morus nigra L. (Moraceae) has various uses in traditional medicine. However, the effect of M. nigra on cognitive impairment has not been investigated yet. OBJECTIVE The objective of this study is to determine the phenolic acid content and DNA damage protection potential of M. nigra leaf extract and to investigate the extract effect on cognitive impairment and oxidative stress in aging mice. MATERIALS AND METHODS Phenolic acid content was determined by quantitative chromatographic analysis. DNA damage protection potential was evaluated on pBR322 plasmid DNA. Thirty-two Balb-C mice were randomly divided into four groups (control, d-galactose, d-galactose + M. nigra 50, and d-galactose + M. nigra 100). Mice were administered d-galactose (100 mg/kg, subcutaneous) and M. nigra (50 or 100 mg/kg, orally) daily for 8 weeks. Behavioral responses were evaluated with Morris water maze. Activities of antioxidant enzymes and levels of malondialdehyde (MDA) were assayed in serum, brain, and liver. RESULTS In extract, vanillic (632.093 μg/g) and chlorogenic acids (555.0 μg/g) were determined. The extract between 0.02 and 0.05 mg/mL effectively protected all DNA bands against the hazardous effect of UV and H2O2. Morus nigra significantly improved learning dysfunctions (p < 0.01), increased memory retention (p < 0.01), reduced MDA levels (p < 0.05), and elevated SOD, GPx, and CAT activities (p < 0.05) compared with the d-galactose group. DISCUSSION AND CONCLUSION These results show that M. nigra has the potential in improving cognitive deficits in mice and that M. nigra may be useful to suppress aging, partially due to its scavenging activity of free radicals and high antioxidant capacity.
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Affiliation(s)
- Nergiz Hacer Turgut
- Department of Pharmacology, Cumhuriyet University Faculty of Pharmacy, Sivas, Turkey
| | - Derya Guliz Mert
- Department of Psychiatry, Cumhuriyet University Faculty of Medicine, Sivas, Turkey
| | - Haki Kara
- Department of Pharmacology and Toxicology, Cumhuriyet University Faculty of Veterinary Medicine, Sivas, Turkey
| | | | - Emre Arslanbas
- Department of Pharmacology and Toxicology, Cumhuriyet University Faculty of Veterinary Medicine, Sivas, Turkey
| | - Bektas Tepe
- Department of Molecular Biology and Genetics, Kilis University Faculty of Science and Literature, Kilis, Turkey
| | - Huseyin Gungor
- Department of Pharmacology and Toxicology, Cumhuriyet University Faculty of Veterinary Medicine, Sivas, Turkey
| | - Nese Yilmaz
- Department of Food Engineering, Faculty of Engineering, Canakkale 18 Mart University, Canakkale, Turkey
| | - Necati Baris Tuncel
- Department of Food Engineering, Faculty of Engineering, Canakkale 18 Mart University, Canakkale, Turkey
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HADZI-PETRUSHEV N, STOJKOVSKI V, MITROV D, MLADENOV M. D-Galactose Induced Changes in Enzymatic Antioxidant Status in Rats of Different Ages. Physiol Res 2015; 64:61-70. [DOI: 10.33549/physiolres.932786] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Considering the preexisting influence of the process of natural aging on antioxidant enzymes activity and the level of lipid peroxidation, the age of the rats at which D-galactose (D-gal) treatment is started could strongly impact the development of D-gal induced senescence. To evaluate this, we subjected 1, 3 and 15 months old rats to D-gal treatment in parallel with having appropriate placebos (0.9 % saline). Our results showed elevated glutathione peroxidase (GPx) activity and no significant changes in superoxide dismutase (SOD), catalase (CAT) and glutathione reductase (GR) activity or malondialdehyde (MDA) levels in relation to natural aging. In mature and aged senescent livers we observed positive correlation between increased ratio R=SOD/(GPx+CAT) and increased MDA concentration. MDA levels seemed to correlate positively with the age of the animals at which D-gal treatment had started. In the case of 3 and 15 months old rats there was D-gal induced decrease in SOD and GR activity, but this effect of the treatment was not observed in 1 month old rats. Our results imply that the changes in the antioxidant enzyme activities are not only under the influence of the D-gal overload, but also depend on the developmental stage of the rats. According to our results, with regard to enzymatic antioxidant capacity and the level of lipid peroxidation, the best age for induction of senescence is somewhere after the third month.
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Affiliation(s)
- N. HADZI-PETRUSHEV
- Faculty of Natural Sciences and Mathematics, Institute of Biology, “Ss. Cyril and Methodius” University, Skopje, Macedonia
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Campos-Bedolla P, Walter FR, Veszelka S, Deli MA. Role of the Blood–Brain Barrier in the Nutrition of the Central Nervous System. Arch Med Res 2014; 45:610-38. [DOI: 10.1016/j.arcmed.2014.11.018] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 11/24/2014] [Indexed: 12/22/2022]
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Si H, Liu D. Dietary antiaging phytochemicals and mechanisms associated with prolonged survival. J Nutr Biochem 2014; 25:581-91. [PMID: 24742470 DOI: 10.1016/j.jnutbio.2014.02.001] [Citation(s) in RCA: 115] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 02/19/2014] [Indexed: 12/13/2022]
Abstract
Aging is well-known an inevitable process that is influenced by genetic, lifestyle and environmental factors. However, the exact mechanisms underlying the aging process are not well understood. Increasing evidence shows that aging is highly associated with chronic increase in reactive oxygen species (ROS), accumulation of a low-grade proinflammatory phenotype and reduction in age-related autophagy, suggesting that these factors may play important roles in promoting aging. Indeed, reduction of ROS and low-grade inflammation and promotion of autophagy by calorie restriction or other dietary manipulation can extend lifespan in a wide spectrum of model organisms. Interestingly, recent studies show that some food-derived small molecules, also called phytochemicals, can extend lifespan in various animal species. In this paper, we review several recently identified potential antiaging phytochemicals that have been studied in cells, animals and humans and further highlight the cellular and molecular mechanisms underlying the antiaging actions by these molecules.
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Affiliation(s)
- Hongwei Si
- Department of Family and Consumer Sciences, Tennessee State University, Nashville, TN 37209, USA.
| | - Dongmin Liu
- Department of Human Nutrition, Foods and Exercise, College of Agriculture and Life Sciences, Virginia Tech, Blacksburg, VA 24061, USA.
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Saponins from Aralia taibaiensis attenuate D-galactose-induced aging in rats by activating FOXO3a and Nrf2 pathways. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2014; 2014:320513. [PMID: 24669284 PMCID: PMC3942195 DOI: 10.1155/2014/320513] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 11/12/2013] [Accepted: 12/01/2013] [Indexed: 11/17/2022]
Abstract
Reactive oxygen species (ROS) are closely related to the aging process. In our previous studies, we found that the saponins from Aralia taibaiensis have potent antioxidant activity, suggesting the potential protective activity on the aging. However, the protective effect of the saponins and the possible underlying molecular mechanism remain unknown. In the present study, we employed a D-galactose-induced aging rat model to investigate the protective effect of the saponins. We found that D-galactose treatment induced obvious aging-related changes such as the decreased thymus and spleen coefficients, the increased advanced glycation end products (AGEs) level, senescence-associated β-galactosidase (SAβ-gal) activity, and malondialdehyde (MDA) level. Further results showed that Forkhead box O3a (FOXO3a), nuclear factor-erythroid 2-related factor 2 (Nrf2), and their targeted antioxidants such as superoxide dismutase 2 (SOD2), catalase (CAT), glutathione reductase (GR), glutathione (GSH), glutamate-cysteine ligase (GCL), and heme oxygenase 1 (HO-1) were all inhibited in the aging rats induced by D-galactose treatment. Saponins supplementation showed effective protection on these changes. These results demonstrate that saponins from Aralia taibaiensis attenuate the D-galactose-induced rat aging. By activating FOXO3a and Nrf2 pathways, saponins increase their downstream multiple antioxidants expression and function, at least in part contributing to the protection on the D-galactose-induced aging in rats.
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