International Journal of

ADVANCED AND APPLIED SCIENCES

EISSN: 2313-3724, Print ISSN: 2313-626X

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 Volume 8, Issue 5 (May 2021), Pages: 122-129

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 Review Paper

 Title: Effects of coconut oil on Alzheimer disease

 Author(s): Tahani Ahmad Al-Matrafi *

 Affiliation(s):

 Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia

  Full Text - PDF          XML

 * Corresponding Author. 

  Corresponding author's ORCID profile: https://orcid.org/0000-0001-8098-2398

 Digital Object Identifier: 

 https://doi.org/10.21833/ijaas.2021.05.013

 Abstract:

Dementia is a general term for loss of memory, language, problem-solving, and other thinking abilities that are severe enough to interfere with daily life. Alzheimer's disease (AD) is the most common cause of dementia. Risk factors as age, genetics, environment, lifestyle, and metabolic disease. The etiology of AD remains not fully explained, but both genetic and environmental risk factors have been proposed to be involved. Microscopically, intraneuronal neurofibrillary tangles (NFTs) and extracellular senile plaques characterize the AD. The amyloid cascade hypothesis (ACH) suggests that the imbalance between the Amyloid-β generation and its clearance causes dysfunction and consequently cell death. Coconut oil may represent a cheap and natural treatment for AD. This is because coconut oil contains medium-chain triglycerides (MCTs), which are digested to ketones in the liver that are linked to mitochondrial function enhancement and oxidation-reduction. Recent studies have investigated the possibility of using trans-zeatin and phytoestrogen and other sex hormones like substances present in coconut water and a young coconut juice (YCJ) in reducing the chance of AD. Coconut is known as a 'functional food' that is extremely nutritious. Virgin coconut oil (VCO) differs from ordinary coconut oil as the former contains a lot more biologically active components. Phenolic compounds and hormones contained in coconut can help prevent amyloid b peptide aggregation, potentially inhibiting a key step in the pathogenesis of AD. Coconut can be useful in the treatment of obesity, dyslipidemia, elevated low-density lipoproteins, insulin resistance, and hypertension-these are the risk factors for chronic venous disease and type II diabetes, as well as for AD. 

 © 2021 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords: Alzheimer’s disease, Neurofibrillary tangles, Amyloid cascade hypothesis, Medium-chain triglycerides, Young coconut juice, Virgin coconut oil

 Article History: Received 19 November 2020, Received in revised form 31 January 2021, Accepted 6 February 2021

 Acknowledgment 

No Acknowledgment.

 Compliance with ethical standards

 Conflict of interest: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.

 Citation:

  Al-Matrafi TA (2021). Effects of coconut oil on Alzheimer disease. International Journal of Advanced and Applied Sciences, 8(5): 122-129

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 References (80)

  1. Abujazia MA, Muhammad N, Shuid AN, and Soelaiman IN (2012). The effects of virgin coconut oil on bone oxidative status in ovariectomised rat. Evidence-Based Complementary and Alternative Medicine, 2012: 525079. https://doi.org/10.1155/2012/525079   [Google Scholar] PMid:22927879 PMCid:PMC3426286
  2. Alghamdi BSA (2018). Possible prophylactic anti-excitotoxic and anti-oxidant effects of virgin coconut oil on aluminium chloride-induced Alzheimer’s in rat models. Journal of Integrative Neuroscience, 17(3-4): 593-607. https://doi.org/10.3233/JIN-180089   [Google Scholar] PMid:30010139
  3. Alleyne T, Roache S, Thomas C, and Shirley A (2005). The control of hypertension by use of coconut water and mauby: Two tropical food drinks. West Indian Medical Journal, 54(1): 3-8. https://doi.org/10.1590/S0043-31442005000100002   [Google Scholar] PMid:15892382
  4. Alzheimer's Association (2016). 2016 Alzheimer's disease facts and figures. Alzheimer's and Dementia, 12(4): 459-509. https://doi.org/10.1016/j.jalz.2016.03.001   [Google Scholar] PMid:27570871
  5. Balit T, Abdel-Wahhab MA, and Radenahmad N (2019). Young coconut juice reduces some histopathological changes associated with Alzheimer’s disease through the modulation of estrogen receptors in orchidectomized rat brains. Journal of Aging Research, 2019: 7416419. https://doi.org/10.1155/2019/7416419   [Google Scholar] PMid:31885921 PMCid:PMC6914913
  6. Barage SH and Sonawane KD (2015). Amyloid cascade hypothesis: Pathogenesis and therapeutic strategies in Alzheimer's disease. Neuropeptides, 52: 1-18. https://doi.org/10.1016/j.npep.2015.06.008   [Google Scholar] PMid:26149638
  7. Chandrashekar P, Lokesh BR, and Krishna AG (2010). Hypolipidemic effect of blends of coconut oil with soybean oil or sunflower oil in experimental rats. Food Chemistry, 123(3): 728-733. https://doi.org/10.1016/j.foodchem.2010.05.042   [Google Scholar]
  8. Chen Z, Wang O, Nie M, Elison K, Zhou D, Li M, and Xing X (2015). Aromatase deficiency in a Chinese adult man caused by novel compound heterozygous CYP19A1 mutations: Effects of estrogen replacement therapy on the bone, lipid, liver and glucose metabolism. Molecular and Cellular Endocrinology, 399: 32-42. https://doi.org/10.1016/j.mce.2014.09.016   [Google Scholar] PMid:25301327 PMCid:PMC4457386
  9. Chin-Chan M, Navarro-Yepes J, and Quintanilla-Vega B (2015). Environmental pollutants as risk factors for neurodegenerative disorders: Alzheimer and Parkinson diseases. Frontiers in Cellular Neuroscience, 9: 124. https://doi.org/10.3389/fncel.2015.00124   [Google Scholar] PMid:25914621 PMCid:PMC4392704
  10. Crary JF (2016). Primary age-related tauopathy and the amyloid cascade hypothesis: The exception that proves the rule? Journal of Neurology and Neuromedicine, 1(6): 53-57. https://doi.org/10.29245/2572.942X/2016/6.1059   [Google Scholar] PMid:27819070
  11. da Silva DDC, Tavares MG, do Nascimento CKB, Lira EC, dos Santos ÂA, de Seixas Maia LMS, and Hornsby MBDO (2018). Can coconut oil and treadmill exercise during the critical period of brain development ameliorate stress-related effects on anxiety-like behavior and episodic-like memory in young rats? Food and Function, 9(3): 1492-1499. https://doi.org/10.1039/C7FO01516J   [Google Scholar] PMid:29517774
  12. David B, Wolfender JL, and Dias DA (2015). The pharmaceutical industry and natural products: Historical status and new trends. Phytochemistry Reviews, 14(2): 299-315. https://doi.org/10.1007/s11101-014-9367-z   [Google Scholar]
  13. Dawkins E and Small DH (2014). Insights into the physiological function of the β‐amyloid precursor protein: Beyond Alzheimer's disease. Journal of Neurochemistry, 129(5): 756-769. https://doi.org/10.1111/jnc.12675   [Google Scholar] PMid:24517464 PMCid:PMC4314671
  14. Dey A, Bhattacharya R, Mukherjee A, and Pandey DK (2017). Natural products against Alzheimer's disease: Pharmaco-therapeutics and biotechnological interventions. Biotechnology Advances, 35(2): 178-216. https://doi.org/10.1016/j.biotechadv.2016.12.005   [Google Scholar] PMid:28043897
  15. Dosumu OO, Duru FIO, Osinubi AA, Oremosu AA, and Noronha CC (2010). Influence of virgin coconut oil (VCNO) on oxidative stress, serum testosterone and gonadotropic hormones (FSH, LH) in chronic ethanol ingestion. Agriculture and Biology Journal of North America, 6: 1126-1132. https://doi.org/10.5251/abjna.2010.1.6.1126.1132   [Google Scholar]
  16. Fernando WMADB, Martins IJ, Goozee KG, Brennan CS, Jayasena V, and Martins RN (2015). The role of dietary coconut for the prevention and treatment of Alzheimer's disease: Potential mechanisms of action. British Journal of Nutrition, 114(1): 1-14. https://doi.org/10.1017/S0007114515001452   [Google Scholar] PMid:25997382
  17. Gu Y, Luchsinger JA, Stern Y, and Scarmeas N (2010). Mediterranean diet, inflammatory and metabolic biomarkers, and risk of Alzheimer's disease. Journal of Alzheimer's Disease, 22(2): 483-492. https://doi.org/10.3233/JAD-2010-100897   [Google Scholar] PMid:20847399 PMCid:PMC3022949
  18. Guo JL, Narasimhan S, Changolkar L, He Z, Stieber A, Zhang B, and Lee VM (2016). Unique pathological tau conformers from Alzheimer’s brains transmit tau pathology in nontransgenic mice. Journal of Experimental Medicine, 213(12): 2635-2654. https://doi.org/10.1084/jem.20160833   [Google Scholar] PMid:27810929 PMCid:PMC5110027
  19. Hardy J and Selkoe DJ (2002). The amyloid hypothesis of Alzheimer's disease: Progress and problems on the road to therapeutics. Science, 297(5580): 353-356. https://doi.org/10.1126/science.1072994   [Google Scholar] PMid:12130773
  20. Heneka MT, Carson MJ, El Khoury J, Landreth GE, Brosseron F, Feinstein DL, and Herrup K (2015). Neuroinflammation in Alzheimer's disease. The Lancet Neurology, 14(4): 388-405. https://doi.org/10.1016/S1474-4422(15)70016-5   [Google Scholar]
  21. Huang LK, Chao SP, and Hu CJ (2020). Clinical trials of new drugs for Alzheimer disease. Journal of Biomedical Science, 27(1): 1-13. https://doi.org/10.36255/exonpublications.alzheimersdisease.2020   [Google Scholar] PMid:33400453
  22. Huang WJ, Zhang XIA, and Chen WW (2016). Role of oxidative stress in Alzheimer's disease. Biomedical Reports, 4(5): 519-522. https://doi.org/10.3892/br.2016.630   [Google Scholar] PMid:27123241 PMCid:PMC4840676
  23. Janick J and Paull RE (2008). The encyclopedia of fruit and nuts. Centre for Agriculture and Bioscience International, Wallingford, UK. https://doi.org/10.1079/9780851996387.0000   [Google Scholar]
  24. Johri A and Beal MF (2012). Mitochondrial dysfunction in neurodegenerative diseases. Journal of Pharmacology and Experimental Therapeutics, 342(3): 619-630. https://doi.org/10.1124/jpet.112.192138   [Google Scholar] PMid:22700435 PMCid:PMC3422529
  25. Karch CM and Goate AM (2015). Alzheimer’s disease risk genes and mechanisms of disease pathogenesis. Biological Psychiatry, 77(1): 43-51. https://doi.org/10.1016/j.biopsych.2014.05.006   [Google Scholar] PMid:24951455 PMCid:PMC4234692
  26. Karch CM, Cruchaga C, and Goate AM (2014). Alzheimer’s disease genetics: From the bench to the clinic. Neuron, 83(1): 11-26. https://doi.org/10.1016/j.neuron.2014.05.041   [Google Scholar] PMid:24991952 PMCid:PMC4120741
  27. Kashiwaya Y, Bergman C, Lee JH, Wan R, King MT, Mughal MR, and Veech RL (2013). A ketone ester diet exhibits anxiolytic and cognition-sparing properties, and lessens amyloid and tau pathologies in a mouse model of Alzheimer's disease. Neurobiology of Aging, 34(6): 1530-1539. https://doi.org/10.1016/j.neurobiolaging.2012.11.023   [Google Scholar] PMid:23276384 PMCid:PMC3619192
  28. Kumar A and Singh A (2015). A review on Alzheimer's disease pathophysiology and its management: An update. Pharmacological Reports, 67(2): 195-203. https://doi.org/10.1016/j.pharep.2014.09.004   [Google Scholar] PMid:25712639
  29. Langa KM (2015). Is the risk of Alzheimer’s disease and dementia declining? Alzheimer's Research and Therapy, 7: 34. https://doi.org/10.1186/s13195-015-0118-1   [Google Scholar] PMid:25815064 PMCid:PMC4374373
  30. Laurent C, Dorothée G, Hunot S, Martin E, Monnet Y, Duchamp M, and Faivre E (2017). Hippocampal T cell infiltration promotes neuroinflammation and cognitive decline in a mouse model of tauopathy. Brain, 140(1): 184-200. https://doi.org/10.1093/brain/aww270   [Google Scholar] PMid:27818384 PMCid:PMC5382942
  31. Lin CI, Shen CF, Hsu TH, and Lin SH (2017). A high-fructose-high-coconut oil diet induces dysregulating expressions of hippocampal leptin and stearoyl-CoA desaturase, and spatial memory deficits in rats. Nutrients, 9(6): 619. https://doi.org/10.3390/nu9060619   [Google Scholar] PMid:28621759 PMCid:PMC5490598
  32. Loureiro JA, Crespo R, Börner H, Martins PM, Rocha FA, Coelho M, and Rocha S (2014). Fluorinated beta-sheet breaker peptides. Journal of Materials Chemistry B, 2(16): 2259-2264. https://doi.org/10.1039/C3TB21483D   [Google Scholar] PMid:32261713
  33. Marina AM, Che Man YB, Nazimah SAH, and Amin I (2009a). Antioxidant capacity and phenolic acids of virgin coconut oil. International Journal of Food Sciences and Nutrition, 60(sup2): 114-123. https://doi.org/10.1080/09637480802549127   [Google Scholar] PMid:19115123
  34. Marina AM, Man YC, Nazimah SAH, and Amin I (2009b). Chemical properties of virgin coconut oil. Journal of the American Oil Chemists' Society, 86(4): 301-307. https://doi.org/10.1007/s11746-009-1351-1   [Google Scholar]
  35. Menard C, Bastianetto S, and Quirion R (2013). Neuroprotective effects of resveratrol and epigallocatechin gallate polyphenols are mediated by the activation of protein kinase C gamma. Frontiers in Cellular Neuroscience, 7: 281. https://doi.org/10.3389/fncel.2013.00281   [Google Scholar] PMid:24421757 PMCid:PMC3872731
  36. Mirzaei F, Khazaei M, Komaki A, Amiri I, and Jalili C (2018). Virgin coconut oil (VCO) by normalizing NLRP3 inflammasome showed potential neuroprotective effects in Amyloid-β induced toxicity and high-fat diet fed rat. Food and Chemical Toxicology, 118: 68-83. https://doi.org/10.1016/j.fct.2018.04.064   [Google Scholar] PMid:29729307
  37. Mohamed T, Shakeri A, and Rao PP (2016). Amyloid cascade in Alzheimer's disease: Recent advances in medicinal chemistry. European Journal of Medicinal Chemistry, 113: 258-272. https://doi.org/10.1016/j.ejmech.2016.02.049   [Google Scholar] PMid:26945113
  38. Nafar F and Mearow KM (2014). Coconut oil attenuates the effects of amyloid-β on cortical neurons in vitro. Journal of Alzheimer's Disease, 39(2); 233-237. https://doi.org/10.3233/JAD-131436   [Google Scholar] PMid:24150106
  39. Nafar F, Clarke JP, and Mearow KM (2017). Coconut oil protects cortical neurons from amyloid beta toxicity by enhancing signaling of cell survival pathways. Neurochemistry International, 105: 64-79. https://doi.org/10.1016/j.neuint.2017.01.008   [Google Scholar] PMid:28126466
  40. Necula M, Kayed R, Milton S, and Glabe CG (2007). Small molecule inhibitors of aggregation indicate that amyloid β oligomerization and fibrillization pathways are independent and distinct. Journal of Biological Chemistry, 282(14): 10311-10324. https://doi.org/10.1074/jbc.M608207200   [Google Scholar] PMid:17284452
  41. Nichols E, Szoeke CE, Vollset SE, Abbasi N, Abd-Allah F, Abdela J, and Awasthi A (2019). Global, regional, and national burden of Alzheimer's disease and other dementias, 1990–2016: A systematic analysis for the global burden of disease study 2016. The Lancet Neurology, 18(1): 88-106. https://doi.org/10.1016/S1474-4422(18)30403-4   [Google Scholar]
  42. Nilson AN, English KC, Gerson JE, Barton Whittle T, Nicolas Crain C, Xue J, and Kayed R (2017). Tau oligomers associate with inflammation in the brain and retina of tauopathy mice and in neurodegenerative diseases. Journal of Alzheimer's Disease, 55(3): 1083-1099. https://doi.org/10.3233/JAD-160912   [Google Scholar] PMid:27716675 PMCid:PMC5147514
  43. Nomura E, Kashiwada A, Hosoda A, Nakamura K, Morishita H, Tsuno T, and Taniguchi H (2003). Synthesis of amide compounds of ferulic acid, and their stimulatory effects on insulin secretion in vitro. Bioorganic and Medicinal Chemistry, 11(17): 3807-3813. https://doi.org/10.1016/S0968-0896(03)00280-3   [Google Scholar]
  44. Ososki AL and Kennelly EJ (2003). Phytoestrogens: A review of the present state of research. Phytotherapy Research: An International Journal Devoted to Pharmacological and Toxicological Evaluation of Natural Product Derivatives, 17(8): 845-869. https://doi.org/10.1002/ptr.1364   [Google Scholar] PMid:13680814
  45. Page KA, Williamson A, Yu N, McNay EC, Dzuira J, McCrimmon RJ, and Sherwin RS (2009). Medium-chain fatty acids improve cognitive function in intensively treated type 1 diabetic patients and support in vitro synaptic transmission during acute hypoglycemia. Diabetes, 58(5): 1237-1244. https://doi.org/10.2337/db08-1557   [Google Scholar] PMid:19223595 PMCid:PMC2671041
  46. Park SY and Kim DS (2002). Discovery of natural products from Curcuma l onga that protect cells from beta-amyloid insult: A drug discovery effort against Alzheimer's disease. Journal of Natural Products, 65(9): 1227-1231. https://doi.org/10.1021/np010039x   [Google Scholar] PMid:12350137
  47. Pinto A, Bonucci A, Maggi E, Corsi M, and Businaro R (2018). Anti-oxidant and anti-inflammatory activity of ketogenic diet: New perspectives for neuroprotection in Alzheimer’s disease. Antioxidants, 7(5): 63. https://doi.org/10.3390/antiox7050063   [Google Scholar] PMid:29710809 PMCid:PMC5981249
  48. Prince MJ (2015). World Alzheimer report 2015: The global impact of dementia: An analysis of prevalence, incidence, cost and trends. Alzheimer's Disease International, London, UK.   [Google Scholar]
  49. Radenahmad N, Boonyoung P, Kamkaew K, Chanchula K, and Kirirat P (2014). Effects of young coconut juice on the numbers of argyrophil endocrine cells in the gastrointestinal tract of male rats: Novel preliminary findings. Songklanakarin Journal of Science and Technology, 36(6): 599-606.   [Google Scholar]
  50. Radenahmad N, Saleh F, Sawangjaroen K, Rundorn W, Withyachumnarnkul B, and Connor JR (2009). Young coconut juice significantly reduces histopathological changes in the brain that is induced by hormonal imbalance: A possible implication to postmenopausal women. Histology and Histopathology, 24(6): 667-674.   [Google Scholar]
  51. Radenahmad N, Saleh F, Sayoh I, Sawangjaroen K, Subhadhirasakul P, Boonyoung P, and Mitranun W (2012). Young coconut juice can accelerate the healing process of cutaneous wounds. BMC Complementary and Alternative Medicine, 12: 252. https://doi.org/10.1186/1472-6882-12-252   [Google Scholar] PMid:23234369 PMCid:PMC3538627
  52. Rahim NS, Lim SM, Mani V, Abdul Majeed AB, and Ramasamy K (2017). Enhanced memory in Wistar rats by virgin coconut oil is associated with increased antioxidative, cholinergic activities and reduced oxidative stress. Pharmaceutical Biology, 55(1): 825-832. https://doi.org/10.1080/13880209.2017.1280688   [Google Scholar] PMid:28118770 PMCid:PMC6130622
  53. Rattanaburee P, Amnuaikit T, Radenahmad N, and Puripattanavong J (2014). Phytochemical study and its quantity and quality of fresh and freeze-dried young coconut juice (Cocos nucifera L.). In: Zhang Y (Ed.), Advanced materials research: 490-493. Volume 884, Trans Tech Publications Ltd., Stafa-Zurich, Switzerland. https://doi.org/10.4028/www.scientific.net/AMR.884-885.490   [Google Scholar]
  54. Rosario ER and Pike CJ (2008). Androgen regulation of β-amyloid protein and the risk of Alzheimer's disease. Brain Research Reviews, 57(2): 444-453. https://doi.org/10.1016/j.brainresrev.2007.04.012   [Google Scholar] PMid:17658612 PMCid:PMC2390933
  55. Rosario ER, Carroll J, and Pike CJ (2010). Testosterone regulation of Alzheimer-like neuropathology in male 3xTg-AD mice involves both estrogen and androgen pathways. Brain Research, 1359: 281-290. https://doi.org/10.1016/j.brainres.2010.08.068   [Google Scholar] PMid:20807511 PMCid:PMC2965035
  56. Ruppin DC and Middleton WRJ (1980). Clinical use of medium chain triglycerides. Drugs, 20(3): 216-224. https://doi.org/10.2165/00003495-198020030-00005   [Google Scholar] PMid:7428670
  57. Rusek M, Pluta R, Ułamek-Kozioł M, and Czuczwar SJ (2019). Ketogenic diet in Alzheimer’s disease. International Journal of Molecular Sciences, 20(16): 3892. https://doi.org/10.3390/ijms20163892   [Google Scholar] PMid:31405021 PMCid:PMC6720297
  58. Sandhya VG and Rajamohan T (2006). Beneficial effects of coconut water feeding on lipid metabolism in cholesterol-fed rats. Journal of Medicinal Food, 9(3): 400-407. https://doi.org/10.1089/jmf.2006.9.400   [Google Scholar] PMid:17004906
  59. Sankararaman S and Sferra TJ (2018). Are we going nuts on coconut oil? Current Nutrition Reports, 7(3): 107-115. https://doi.org/10.1007/s13668-018-0230-5   [Google Scholar] PMid:29974400
  60. Selkoe DJ and Hardy J (2016). The amyloid hypothesis of Alzheimer's disease at 25 years. EMBO Molecular Medicine, 8(6): 595-608. https://doi.org/10.15252/emmm.201606210   [Google Scholar] PMid:27025652 PMCid:PMC4888851
  61. Seneviratne KN, HapuarachchI CD, and Ekanayake S (2009). Comparison of the phenolic-dependent antioxidant properties of coconut oil extracted under cold and hot conditions. Food Chemistry, 114(4): 1444-1449. https://doi.org/10.1016/j.foodchem.2008.11.038   [Google Scholar]
  62. Sengupta U, Nilson AN, and Kayed R (2016). The role of amyloid-β oligomers in toxicity, propagation, and immunotherapy. EBioMedicine, 6: 42-49. https://doi.org/10.1016/j.ebiom.2016.03.035   [Google Scholar] PMid:27211547 PMCid:PMC4856795
  63. Shah R (2013). The role of nutrition and diet in Alzheimer disease: A systematic review. Journal of the American Medical Directors Association, 14(6): 398-402. https://doi.org/10.1016/j.jamda.2013.01.014   [Google Scholar] PMid:23419980
  64. Silva RF and Pogačnik L (2017). Food, polyphenols and neuroprotection. Neural Regeneration Research, 12(4): 582-583. https://doi.org/10.4103/1673-5374.205096   [Google Scholar] PMid:28553336 PMCid:PMC5436354
  65. Şöhretoğlu D and Arroo R (2018). Plant-derived antiinflammatory steroid analogs for neuroprotection: A recent update. In: Brahmachari G (Ed.), Discovery and development of neuroprotective agents from natural products: 321-358. Elsevier, Amsterdam, Netherlands. https://doi.org/10.1016/B978-0-12-809593-5.00007-0   [Google Scholar]
  66. Solomon A, Mangialasche F, Richard E, Andrieu S, Bennett DA, Breteler M, and Skoog I (2014). Advances in the prevention of Alzheimer's disease and dementia. Journal of Internal Medicine, 275(3): 229-250. https://doi.org/10.1111/joim.12178   [Google Scholar] PMid:24605807 PMCid:PMC4390027
  67. Sumithran P, Prendergast LA, Delbridge E, Purcell K, Shulkes A, Kriketos A, and Proietto J (2013). Ketosis and appetite-mediating nutrients and hormones after weight loss. European Journal of Clinical Nutrition, 67(7): 759-764. https://doi.org/10.1038/ejcn.2013.90   [Google Scholar] PMid:23632752
  68. Suwanpal P, Radenahmad N, Yusuh M, Eksomtramate M, Ruangsri P, and Chantanasuksilpa A (2011). Effects of young-coconut juice on increasing mandibular cancellous bone in orchidectomized rats: Preliminary novel findings. Songklanakarin Journal of Science and Technology, 33(6): 617-623.   [Google Scholar]
  69. Takahashi RH, Nagao T, and Gouras GK (2017). Plaque formation and the intraneuronal accumulation of β‐amyloid in Alzheimer's disease. Pathology International, 67(4): 185-193. https://doi.org/10.1111/pin.12520   [Google Scholar] PMid:28261941
  70. Tepe B, Sokmen M, Sokmen A, Daferera D, and Polissiou M (2005). Antimicrobial and antioxidative activity of the essential oil and various extracts of Cyclotrichium origanifolium (Labill.) Manden and Scheng. Journal of Food Engineering, 69(3): 335-342. https://doi.org/10.1016/j.jfoodeng.2004.08.024   [Google Scholar]
  71. Traul KA, Driedger A, Ingle DL, and Nakhasi D (2000). Review of the toxicologic properties of medium-chain triglycerides. Food and Chemical Toxicology, 38(1): 79-98. https://doi.org/10.1016/S0278-6915(99)00106-4   [Google Scholar]
  72. Verma M, Vats A, and Taneja V (2015). Toxic species in amyloid disorders: Oligomers or mature fibrils. Annals of Indian Academy of Neurology, 18(2): 138-145. https://doi.org/10.4103/0972-2327.144284   [Google Scholar] PMid:26019408 PMCid:PMC4445186
  73. Vickers JC, Dickson TC, Adlard PA, Saunders HL, King CE, and McCormack G (2000). The cause of neuronal degeneration in Alzheimer's disease. Progress in Neurobiology, 60(2): 139-165. https://doi.org/10.1016/S0301-0082(99)00023-4   [Google Scholar]
  74. Villain N, Chételat G, Grassiot B, Bourgeat P, Jones G, Ellis KA, and Masters CL (2012). Regional dynamics of amyloid-β deposition in healthy elderly, mild cognitive impairment and Alzheimer’s disease: A voxelwise PiB–PET longitudinal study. Brain, 135(7): 2126-2139. https://doi.org/10.1093/brain/aws125   [Google Scholar] PMid:22628162
  75. Wlaź P, Socała K, Nieoczym D, Łuszczki JJ, Żarnowska I, Żarnowski T, and Gasior M (2012). Anticonvulsant profile of caprylic acid, a main constituent of the medium-chain triglyceride (MCT) ketogenic diet, in mice. Neuropharmacology, 62(4): 1882-1889. https://doi.org/10.1016/j.neuropharm.2011.12.015   [Google Scholar] PMid:22210332
  76. Yan JJ, Jung JS, Kim TK, Hasan MA, Hong CW, Nam JS, and Song DK (2013). Protective effects of ferulic acid in amyloid precursor protein plus presenilin-1 transgenic mouse model of Alzheimer disease. Biological and Pharmaceutical Bulletin, 36(1): 140-143. https://doi.org/10.1248/bpb.b12-00798   [Google Scholar] PMid:23075678
  77. Yeap SK, Beh BK, Ali NM, Yusof HM, Ho WY, Koh SP, and Long K (2015). Antistress and antioxidant effects of virgin coconut oil in vivo. Experimental and Therapeutic Medicine, 9(1): 39-42. https://doi.org/10.3892/etm.2014.2045   [Google Scholar] PMid:25452773 PMCid:PMC4247320
  78. Yuan Q, Wang CW, Shi J, and Lin ZX (2017). Effects of Ginkgo biloba on dementia: An overview of systematic reviews. Journal of Ethnopharmacology, 195: 1-9. https://doi.org/10.1016/j.jep.2016.12.005   [Google Scholar] PMid:27940086
  79. Yusuh M, Phochanukoon N, Radenahmad N, Eksomtramate M, Ruangsri P, Chantanasuksilpa A, and Nitiruangjaras A (2010). Changes of condyle cartilage in orchidectomized rats fed with young coconut juice: Novel preliminary findings. Songklanakarin Journal of Science and Technology, 32(4): 333-339.   [Google Scholar]
  80. Zhang Z, Song M, Liu X, Kang SS, Duong DM, Seyfried NT, and Jia J (2015). Delta-secretase cleaves amyloid precursor protein and regulates the pathogenesis in Alzheimer’s disease. Nature Communications, 6(1): 1-16. https://doi.org/10.1038/ncomms9762   [Google Scholar] PMid:26549211 PMCid:PMC4659940