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Olive Leaves Extract and Oleuropein Improve Insulin Sensitivity in 3T3-L1 Cells and in High-Fat Diet-Treated Rats via PI3K/AkT Signaling Pathway. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:6828230. [PMID: 36647430 PMCID: PMC9840553 DOI: 10.1155/2023/6828230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Revised: 12/04/2022] [Accepted: 12/12/2022] [Indexed: 01/09/2023]
Abstract
Olive leaves extracts are known to exert potential pharmacological activities especially, antidiabetic and antiobesity. This study explores the anti-insulin resistant effect of olive leaves extracts and oleuropein in 3 T3-L1 cells and in high-fat diet fed rats. Our results showed that ethanol extract (EE) suppressed significantly (P < 0.01) triacylglycerol accumulation. In preadipocytes cells, EE 1/100 decreased cell viability and induced apoptosis. Real-time PCR analysis showed that EE reduced the mRNA levels of adipogenesis (CEBP-α, PPARγ, SREBP-1c, and FAS) and proinflammatory (TNF-α and IL-6) genes. Moreover, the cotreatment of EE 1/1000 or oleuropein with insulin increased considerably the expression of p-IRS, p85-pI3K, and p-AKT. In vivo model, the oral administration of oleuropein at 50 mg/kg in rats fed with high fat diet for 8 weeks reduced inflammation in liver and adipose tissues (WAT), improved glucose intolerance, and decreased hyperinsulinemia. Furthermore, the immunohistochemistry revealed that the expression level of p-Akt, IRS1, and Glut-4 were significantly enhanced in liver and WAT tissues after oleuropein supplementation comparing with that in HFD group. Additionally, the expression of IRS1 was markedly ameliorated in pancreas. Our obtained results can be adopted as an approach to used olive leaves as complement to prevent insulin-resistance disease.
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Favorable Effects of Virgin Coconut Oil on Neuronal Damage and Mortality after a Stroke Incidence in the Stroke-Prone Spontaneously Hypertensive Rat. LIFE (BASEL, SWITZERLAND) 2022; 12:life12111857. [PMID: 36430992 PMCID: PMC9694050 DOI: 10.3390/life12111857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/04/2022] [Accepted: 11/09/2022] [Indexed: 11/16/2022]
Abstract
Stroke is consistently one of the top ten causes of morbidity and mortality globally, whose outcomes are quite variable, necessitating case-specific management. Prophylactic diets before the onset of stroke have been implicated to work. In this research, the effects of virgin coconut oil (VCO) on stroke were evaluated using a stroke-prone spontaneously hypertensive rat (SHRSP) model. Eight-week-old SHRSPs were subjected to the repeated oral administration (5 mL/kg/day) of either 1% Tween 80 (group A) or VCO (group B). An early stroke onset was observed due to hypertension that was aggravation by the administration of 1% NaCl in water ad libitum. The following data were collected: the days until stroke occurred, the survival rate until the animal died, and blood pressure (BP) every two weeks using the tail-cuff method. After necropsy, the organs were harvested, and the brain was processed for a routine histopathological analysis. VCO delayed the incidence of it and prolonged their survival. Compared to group A, group B showed a significantly lowered BP by 20 mmHg at four weeks after the start of VCO treatment. Lastly, the brain histopathology showed that the structurally damaged areas were smaller in group B than they were in group A. The VCO could have protective effects on the brain before and even after stroke incidence.
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Camel Grass Phenolic Compounds: Targeting Inflammation and Neurologically Related Conditions. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227707. [PMID: 36431805 PMCID: PMC9694793 DOI: 10.3390/molecules27227707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/02/2022] [Accepted: 11/06/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND The use of plants for therapeutic purposes has been supported by growing scientific evidence. METHODS This work consisted of (i) characterizing the phenolic compounds present in both aqueous and hydroethanol (1:1, v/v) extracts of camel grass, by hyphenated liquid chromatographic techniques, (ii) evaluating their anti-inflammatory, antioxidant, and neuromodulation potential, through in vitro cell and cell-free models, and (iii) establishing a relationship between the chemical profiles of the extracts and their biological activities. RESULTS Several caffeic acid and flavonoid derivatives were determined in both extracts. The extracts displayed scavenging capacity against the physiologically relevant nitric oxide (•NO) and superoxide anion (O2•-) radicals, significantly reduced NO production in lipopolysaccharide (LPS)-stimulated macrophages (RAW 264.7), and inhibited the activity of hyaluronidase (HAase), acetylcholinesterase (AChE) and butyrylcholinesterase (BChE). Some of these bioactivities were found to be related with the chemical profile of the extracts, namely with 3-caffeoylquinic, 4-caffeoylquinic, chlorogenic, and p-coumaric acids, as well as with luteolin and apigenin derivatives. CONCLUSIONS This study reports, for the first time, the potential medicinal properties of aqueous and hydroethanol extracts of camel grass in the RAW 264.7 cell model of inflammation, and in neurologically related conditions.
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Ghias M, Shah SWA, Al-Joufi FA, Shoaib M, Shah SMM, Ahmed MN, Zahoor M. In Vivo Antistress Effects of Synthetic Flavonoids in Mice: Behavioral and Biochemical Approach. Molecules 2022; 27:molecules27041402. [PMID: 35209189 PMCID: PMC8879959 DOI: 10.3390/molecules27041402] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/10/2022] [Accepted: 02/15/2022] [Indexed: 02/04/2023] Open
Abstract
Natural flavonoids, in addition to some of their synthetic derivatives, are recognized for their remarkable medicinal properties. The present study was designed to investigate the in vitro antioxidant and in vivo antistress effect of synthetic flavonoids (flavones and flavonols) in mice, where stress was induced by injecting acetic acid and physically through swimming immobilization. Among the synthesized flavones (F1–F6) and flavonols (OF1–OF6), the mono para substituted methoxy containing F3 and OF3 exhibited maximum scavenging potential against DPPH (2,2-diphenyl-1-picrylhydrazyl) with IC50 of 31.46 ± 1.46 μg/mL and 25.54 ± 1.21 μg/mL, respectively. Minimum antioxidant potential was observed for F6 and OF6 with IC50 values of 174.24 ± 2.71 μg/mL and 122.33 ± 1.98 μg/mL, respectively, in comparison with tocopherol. The ABTS scavenging activity of all the synthesized flavones and flavonols were significantly higher than observed with DPPH assay, indicating their potency as good antioxidants and the effectiveness of ABTS (2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonate) assay in evaluating antioxidant potentials of chemical substances. The flavonoids-treated animals showed a significant (* p < 0.05, ** p < 0.01 and *** p < 0.001, n = 8) reduction in the number of writhes and an increase in swimming endurance time. Stressful conditions changed plasma glucose, cholesterol and triglyceride levels, which were used as markers when evaluating stress in animal models. The level of these markers was nearly brought to normal when pre-treated with flavones and flavonols (10 mg/kg) for fifteen days in experimental animals. These compounds also considerably reduced the levels of lipid peroxidation (TBARS: Thiobarbituric acid reactive substances), which was significant (* p < 0.05, ** p < 0.01 and *** p < 0.001, n = 8) compared to the control group. A significant rise in the level of catalase and SOD (super oxide dismutase) was also observed in the treated groups. Diazepam (2 mg/kg) was used as the standard drug. Additionally, the flavonoids markedly altered the weight of the adrenal glands, spleen and brain in stress-induced mice. The findings of the study suggest that these flavonoids could be used as a remedy for stress and are capable of ameliorating diverse physiological and biochemical alterations associated with stressful conditions. However, further experiments are needed to confirm the observed potentials in other animal models, especially in those with a closer resemblance to humans. Toxicological evaluations are also equally important.
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Affiliation(s)
- Mehreen Ghias
- Department of Pharmacy, University of Malakand, Dir (Lower), Chakdara 18800, Khyber Pakhtunkhwa, Pakistan; (M.G.); (S.W.A.S.); (M.S.)
| | - Syed Wadood Ali Shah
- Department of Pharmacy, University of Malakand, Dir (Lower), Chakdara 18800, Khyber Pakhtunkhwa, Pakistan; (M.G.); (S.W.A.S.); (M.S.)
| | - Fakhria A. Al-Joufi
- Department of Pharmacology, College of Pharmacy, Jouf University, Aljouf 72341, Saudi Arabia;
| | - Mohammad Shoaib
- Department of Pharmacy, University of Malakand, Dir (Lower), Chakdara 18800, Khyber Pakhtunkhwa, Pakistan; (M.G.); (S.W.A.S.); (M.S.)
| | | | - Muhammad Naeem Ahmed
- Department of Chemistry, The University of Azad Jammu and Kashmir, Muzaffarabad 13100, Pakistan;
| | - Muhammad Zahoor
- Department of Biochemistry, University of Malakand, Dir (Lower), Chakdara 18800, Khyber Pakhtunkhwa, Pakistan
- Correspondence: or
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Sasaki K, Iwata N, Ferdousi F, Isoda H. Antidepressant-Like Effect of Ferulic Acid via Promotion of Energy Metabolism Activity. Mol Nutr Food Res 2019; 63:e1900327. [PMID: 31394019 PMCID: PMC6790570 DOI: 10.1002/mnfr.201900327] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/07/2019] [Indexed: 11/11/2022]
Abstract
SCOPE Ferulic acid (FA), a natural phenolic phytochemical abundantly present in whole grains, herbs, and dried fruits, exhibits anti-inflammatory, antioxidant, and neuroprotective effects. In the present study, the antidepressant-like effects of FA in male ICR mice using tail suspension test (TST) are investigated and its molecular mechanisms are explored. METHODS AND RESULTS Oral administration of FA at a dose of 5 mg kg-1 for 7 days significantly reduces immobility of mice compared to vehicle-administered control group. Microarray and real-time PCR analyses reveal that FA upregulates the expression of several genes associated with cell survival and proliferation, energy metabolism, and dopamine synthesis in mice limbic system of brain. Interestingly, it is found that FA, unlike antidepressant drug bupropion, strongly promotes energy metabolism. Additionally, FA increases catecholamine (dopamine and noradrenaline), brain-derived neurotrophic factor, and ATP levels, and decreases glycogen levels in the limbic system of the mice brain. CONCLUSION The research provides the first evidence that FA enhances energy production, which can be the underlying mechanism of the antidepressant-like effects of FA observed in this study.
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Affiliation(s)
- Kazunori Sasaki
- Alliance for Research on the Mediterranean and North Africa (ARENA)University of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305–8572Japan
- Interdisciplinary Research Center for Catalytic ChemistryNational Institute of Advanced Industrial Science and Technology (AIST)AIST Tsukuba Central 5‐2TsukubaIbaraki305–8565Japan
- Faculty of Pure and Applied SciencesUniversity of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305–8571Japan
| | - Nozomu Iwata
- School of Integrative and Global Majors (SIGMA)University of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305–8577Japan
| | - Farhana Ferdousi
- Alliance for Research on the Mediterranean and North Africa (ARENA)University of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305–8572Japan
| | - Hiroko Isoda
- Alliance for Research on the Mediterranean and North Africa (ARENA)University of Tsukuba1‐1‐1 TennodaiTsukubaIbaraki305–8572Japan
- Interdisciplinary Research Center for Catalytic ChemistryNational Institute of Advanced Industrial Science and Technology (AIST)AIST Tsukuba Central 5‐2TsukubaIbaraki305–8565Japan
- Faculty of Life and Environmental SciencesUniversity of TsukubaJapan1‐1‐1 TennodaiTsukubaIbaraki305–8572Japan
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Modulation of the neurotransmitter systems through the anti-inflammatory and antidepressant-like effects of squalene from Aurantiochytrium sp. PLoS One 2019; 14:e0218923. [PMID: 31251788 PMCID: PMC6599144 DOI: 10.1371/journal.pone.0218923] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 06/13/2019] [Indexed: 11/19/2022] Open
Abstract
Although algae have been the focal point of biofuel research, studies on their biological activities have been limited. In recent years, however, the importance of algae as sources of functional ingredients has been recognized due to their health beneficial effects. In this study, we evaluated the antidepressant-like activities of ethanol extract of Aurantiochytrium sp. (EEA) in the forced swimming test (FST)-induced depression in ICR mice. Imipramine, a commercially available tricyclic antidepressant drug, was used as positive control. Animals were administered EEA orally for 14 consecutive days and were subjected to the locomotor activity testing. Additionally, changes in gene expression in mice brain were assessed by real-time PCR and microarray assays to understand the molecular mechanisms underlying the effect of EEA. We found that the immobility time in FST was significantly reduced in the EEA-treated mice compared to that of in the control mice. Microarray and real-time PCR results revealed that EEA treatment induced changes in several genes in mice brain associated with pro-inflammation and dopaminergic, cholinergic, glutamatergic, and serotonergic synapses. It has previously been reported that several cytokines, such as IL-6 and TNF-α, which mediate neuroinflammation, are also responsible for indirectly altering brain neurotransmitter levels in neuropsychiatric disorders. Therefore, the regulation of the expression of pro-inflammatory genes in EEA-administered mice brain is considered to contribute to the enhancement of neurotransmitter systems-related gene expression in our study. Moreover, our in vitro study suggested that squalene, a component produced by Aurantiochytrium, was one of the active substances in EEA. In conclusion, our study provides the first evidence that Aurantiochytrium sp. can reduce neuroinflammation that may contribute to the modulation of the neurotransmitter systems, which could underlie its antistress and antidepressant effects.
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Aous W, Benchabane O, Outaleb T, Hazzit M, Mouhouche F, Yekkour A, Baaliouamer A. Essential oils of Cymbopogon schoenanthus (L.) Spreng. from Algerian Sahara: chemical variability, antioxidant, antimicrobial and insecticidal properties. JOURNAL OF ESSENTIAL OIL RESEARCH 2019. [DOI: 10.1080/10412905.2019.1612790] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Wahiba Aous
- Laboratory of Valorization and Conservation of Biological Resources, Department of agronomic sciences, University of M‘hamed Bougara, Boumerdes, BP, Algeria
| | - Otmane Benchabane
- Department of Food Technology and Human Nutrition, National High School of Agronomy, El-Harrach (ENSA), Algiers, Algeria
| | - Tydia Outaleb
- High School of Food Sciences and Food Industries (ESSAIA), Algiers, Algeria
| | - Mohamed Hazzit
- Department of Food Technology and Human Nutrition, National High School of Agronomy, El-Harrach (ENSA), Algiers, Algeria
| | - Fazia Mouhouche
- Department of Agricultural and Forestry Zoology, National High School of Agronomy, El-Harrach (ENSA), Algiers, Algeria
| | - Amine Yekkour
- Research Center in Plant Science, National Institute of Agronomic Research of Algeria, B.P., Algiers, Algeria
| | - Aoumeur Baaliouamer
- Laboratory of Functional Organic Analysis, Faculty of Chemistry, University of Science and Technology Houari Boumediene (USTHB), BP, Bab Ezzouar, Algeria
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Upregulation of Mitf by Phenolic Compounds-Rich Cymbopogon schoenanthus Treatment Promotes Melanogenesis in B16 Melanoma Cells and Human Epidermal Melanocytes. BIOMED RESEARCH INTERNATIONAL 2017; 2017:8303671. [PMID: 29359158 PMCID: PMC5735589 DOI: 10.1155/2017/8303671] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 10/17/2017] [Indexed: 11/18/2022]
Abstract
Melanin provides inherent protection against skin cancer by absorbing broad-spectrum radiant energy of UV radiation. Cutaneous malignant melanoma incidence has recently been observed to increase and the frequency is closely associated with the skin color, highlighting the importance of skin pigmentation. Here, we showed how melanin biosynthesis is enhanced by treatment with phenolic compounds-rich Cymbopogon schoenanthus (CYM) in B16 murine melanoma cells and human epidermal melanocytes (HEM). CYM increased the melanin content of the cells by upregulating the expression of tyrosinase (TYR), tyrosinase-related protein 1 (TRP1), and dopachrome tautomerase (DCT) at the protein and mRNA levels, comparable to the effect of α-melanocyte-stimulating hormone (MSH), in both B16 cells and HEM. Moreover, global gene expression analysis showed that at least 44 pigmentation-associated genes were modulated, including the microphthalmia-associated transcription factor (Mitf) and its transcriptional regulators (Sox10, Pax3, and Lef1). Upregulation of copper transport-associated gene Atp7b indicates that CYM also promotes tyrosinase activity. CYM upregulated Mitf and possibly activates tyrosinase enzyme, providing evidence for its possible use to promote melanogenesis and as a therapeutic agent against hypopigmentation disorders.
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Sasaki K, Othman MB, Demura M, Watanabe M, Isoda H. Modulation of Neurogenesis through the Promotion of Energy Production Activity Is behind the Antidepressant-Like Effect of Colonial Green Alga, Botryococcus braunii. Front Physiol 2017; 8:900. [PMID: 29176952 PMCID: PMC5686089 DOI: 10.3389/fphys.2017.00900] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 10/24/2017] [Indexed: 12/31/2022] Open
Abstract
Algae have been recognized as important resources providing functional components due to their capacity to exert beneficial effects on health. Therefore, there is increasing interest in investigating the biological activity of algae. In this study, we evaluated the antidepressant-like effect of the administration of 100 mg/kg/day of the ethanol extract of colonial green alga Botryococcus braunii (EEB) for 14 consecutive days in the forced swimming test (FST)-induced depression in imprinting control region (ICR) mice. Imipramine, a commercial antidepressant drug, was used as a positive control. In addition, we investigated the molecular mechanisms underlying the effect of EEB by measuring ATP production and by assessing any change in gene expression at the end of the treatment using real-time polymerase chain reaction (PCR) and microarray assays. We showed that the immobility time in the water-administered control (FST stress) group gradually increased from day 1 to day 14. However, treatment with EEB caused a significant decrease of immobility time in the FST compared with that in the FST stress group. Microarray and real-time PCR results revealed that EEB treatment induced variation in the expression of several genes associated with neurogenesis, energy metabolism, and dopamine synthesis. Interestingly, we revealed that only EEB treatment enhanced the promotion of energy production, while treatment with imipramine was ineffective. Our study provides the first evidence that B. braunii enhances energy production, which may contribute to the modulation of neurogenesis and to the enhancement of dopaminergic function, in turn potentially underlying the antistress- and antidepressant-like effects that we observed.
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Affiliation(s)
- Kazunori Sasaki
- Interdisciplinary Research Center for Catalytic Chemistry, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan.,Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
| | - Mahmoud B Othman
- Alliance for Research on North Africa, University of Tsukuba, Tsukuba, Japan
| | - Mikihide Demura
- Algal Biomass and Energy System R&D Center, University of Tsukuba, Tsukuba, Japan
| | - Makoto Watanabe
- Algal Biomass and Energy System R&D Center, University of Tsukuba, Tsukuba, Japan.,Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
| | - Hiroko Isoda
- Alliance for Research on North Africa, University of Tsukuba, Tsukuba, Japan.,Faculty of Life and Environmental Sciences, University of Tsukuba, Tsukuba, Japan
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Yeap SK, Beh BK, Ali NM, Yusof HM, Ho WY, Koh SP, Alitheen NB, Long K. Antistress and antioxidant effects of virgin coconut oil in vivo.. Exp Ther Med 2014; 9:39-42. [PMID: 25452773 PMCID: PMC4247320 DOI: 10.3892/etm.2014.2045] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Accepted: 08/20/2014] [Indexed: 01/24/2023] Open
Abstract
Virgin coconut oil (VCO) has been consumed worldwide for various health-related reasons and some of its benefits have been scientifically evaluated. Medium-chain fatty acids were found to be a potential antidepressant functional food; however, this effect had not been evaluated in VCO, which is rich in polyphenols and medium-chain fatty acids. The aim of this study was to evaluate the antistress and antioxidant effects of VCO in vivo, using mice with stress-induced injury. The antistress effect of VCO (administered per os, at a dose of 10 ml/kg body weight) was evaluated using the forced swim test and chronic cold restraint stress models. VCO was able to reduce immobility time and restore oxidative stress in mice post-swim test. Furthermore, mice treated with VCO were found to exhibit higher levels of brain antioxidants, lower levels of brain 5-hydroxytryptamine and reduced weight of the adrenal glands. Consequently, the serum cholesterol, triglyceride, glucose and corticosterone levels were also lower in VCO-treated mice. These results suggest the potential value of VCO as an antistress functional oil.
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Affiliation(s)
- Swee Keong Yeap
- Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Boon Kee Beh
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Norlaily Mohd Ali
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Hamidah Mohd Yusof
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Wan Yong Ho
- School of Biomedical Sciences, The University of Nottingham Malaysia Campus, Jalan Broga, Semenyih, Selangor 43500, Malaysia
| | - Soo Peng Koh
- Biotechnology Research Centre, Malaysian Agricultural Research and Development Institute, Serdang, Selangor 43400, Malaysia
| | - Noorjahan Banu Alitheen
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Science, Universiti Putra Malaysia, Serdang, Selangor 43400, Malaysia
| | - Kamariah Long
- Biotechnology Research Centre, Malaysian Agricultural Research and Development Institute, Serdang, Selangor 43400, Malaysia
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