1. United Nations, Department of Economic and Social Affairs, Population Division (2017). World Population Ageing 2017 - Highlights (ST/ESA/SER.A/397).
2. Li Z, Zhang Z, Ren Y, Wang Y, Fang J, Yue H, Ma S, Guan F. Aging and age-related diseases: from mechanisms to therapeutic strategies. Biogerontology. 2021 Apr;22(2):165-187.
3. Yeap BB. Testosterone and ill-health in aging men. Nat Clin Pract Endocrinol Metab. 2009 Feb;5(2):113-21.
4. Basaria S, Coviello AD, Travison TG, Storer TW, Farwell WR, Jette AM, Eder R, Tennstedt S, Ulloor J, Zhang A, Choong K, Lakshman KM, Mazer NA, Miciek R, Krasnoff J, Elmi A, Knapp PE, Brooks B, Appleman E, Aggarwal S, Bhasin G, Hede-Brierley L, Bhatia A, Collins L, LeBrasseur N, Fiore LD, Bhasin S. Adverse events associated with testosterone administration. N Engl J Med. 2010 Jul 8;363(2):109-22.
5. Vigen R, O'Donnell CI, Barón AE, Grunwald GK, Maddox TM, Bradley SM, Barqawi A, Woning G, Wierman ME, Plomondon ME, Rumsfeld JS, Ho PM. Association of testosterone therapy with mortality, myocardial infarction, and stroke in men with low testosterone levels. JAMA. 2013 Nov 6;310(17):1829-36.
6. Pohl F, Kong Thoo Lin P. The Potential Use of Plant Natural Products and Plant Extracts with Antioxidant Properties for the Prevention/Treatment of Neurodegenerative Diseases: In Vitro, In Vivo and Clinical Trials. Molecules. 2018 Dec 11;23(12):3283.
7. Cenini G, Lloret A, Cascella R. Oxidative Stress in Neurodegenerative Diseases: From a Mitochondrial Point of View. Oxid Med Cell Longev. 2019 May 9;2019:2105607.
8. Tomas-Barberán F, Osorio C. Advances in Health-Promoting Food Ingredients. J Agric Food Chem. 2019 Aug 21;67(33):9121-9123.
9. Adefegha SA. Functional Foods and Nutraceuticals as Dietary Intervention in Chronic Diseases; Novel Perspectives for Health Promotion and Disease Prevention. J Diet Suppl. 2018 Nov 2;15(6):977-1009.
10. Kodera Y, Suzuki A, Imada O, Kasuga S, Sumioka I, Kanezawa A, Taru N, Fujikawa M, Nagae S, Masamoto K, Maeshige K, Ono K. Physical, chemical, and biological properties of s-allylcysteine, an amino acid derived from garlic. J Agric Food Chem. 2002 Jan 30;50(3):622- 32.
11. Amagase H, Petesch BL, Matsuura H, Kasuga S, Itakura Y. Intake of garlic and its bioactive components. J Nutr. 2001 Mar;131(3s):955S-62S.
12. Choi IS, Cha HS, Lee YS. Physicochemical and antioxidant properties of black garlic. Molecules. 2014 Oct 20;19(10):16811-23.
13. Sang Eun Bae, Seung Yong Cho, Yong Duk Won, Seon Ha Lee, Hyun Jin Park. Changes in S-allyl cysteine contents and physicochemical properties of black garlic during heat treatment. LWT Food Sci. Technol. 2014 Jan; 55(1):397-402.
14. Yamasaki T, Lau BH. [Garlic compounds protect vascular endothelial cells from oxidant injury]. Nihon Yakurigaku Zasshi. 1997 Oct;110 Suppl 1:138P-141P. Japanese.
15. Imai J, Ide N, Nagae S, Moriguchi T, Matsuura H, Itakura Y. Antioxidant and radical scavenging effects of aged garlic extract and its constituents. Planta Med. 1994 Oct;60(5):417- 20.
16. Colín-González AL, Santana RA, Silva-Islas CA, Chánez-Cárdenas ME, Santamaría A, Maldonado PD. The antioxidant mechanisms underlying the aged garlic extract- and S- allylcysteine-induced protection. Oxid Med Cell Longev. 2012; 2012:907162.
17. Saravanan G, Ponmurugan P. Ameliorative potential of S-allyl cysteine on oxidative stress in STZ induced diabetic rats. Chem Biol Interact. 2011 Jan 15;189(1-2):100-6.
18. Khajevand-Khazaei MR, Azimi S, Sedighnejad L, Salari S, Ghorbanpour A, Baluchnejadmojarad T, Mohseni-Moghaddam P, Khamse S, Roghani M. S-allyl cysteine protects against lipopolysaccharide-induced acute kidney injury in the C57BL/6 mouse strain: Involvement of oxidative stress and inflammation. Int Immunopharmacol. 2019 Apr; 69:19- 26.
19. Gong Z, Ye H, Huo Y, Wang L, Huang Y, Huang M, Yuan X. S-allyl-cysteine attenuates carbon tetrachloride-induced liver fibrosis in rats by targeting STAT3/SMAD3 pathway. Am J Transl Res. 2018 May 15;10(5):1337-1346.
20. Yang J, Wang T, Yang J, Rao K, Zhan Y, Chen RB, Liu Z, Li MC, Zhuan L, Zang GH, Guo SM, Xu H, Wang SG, Liu JH, Ye ZQ. S-allyl cysteine restores erectile function through inhibition of reactive oxygen species generation in diabetic rats. Andrology. 2013 May;1(3):487-94.
21. Takemura S, Ichikawa H, Naito Y, Takagi T, Yoshikawa T, Minamiyama Y. S-allyl cysteine ameliorates the quality of sperm and provides protection from age-related sperm dysfunction and oxidative stress in rats. J Clin Biochem Nutr. 2014 Nov;55(3):155-61.
22. Lee AS, Lee SH, Lee S, Yang BK. Effects of streptozotocin and S-allyl-L-cysteine on motility, plasma membrane integrity, and mitochondrial activity of boar spermatozoa. Trop Anim Health Prod. 2020 Jan;52(1):437-444.
23. Moriguchi T, Matsuura H, Kodera Y, Itakura Y, Katsuki H, Saito H, Nishiyama N. Neurotrophic activity of organosulfur compounds having a thioallyl group on cultured rat hippocampal neurons. Neurochem Res. 1997 Dec;22(12):1449-52.
24. Murphy MP, LeVine H 3rd. Alzheimer's disease and the amyloid-beta peptide. J Alzheimers Dis. 2010;19(1):311-23.
25. Ito Y, Kosuge Y, Sakikubo T, Horie K, Ishikawa N, Obokata N, Yokoyama E, Yamashina K, Yamamoto M, Saito H, Arakawa M, Ishige K. Protective effect of S-allyl-L-cysteine, a garlic compound, on amyloid beta-protein-induced cell death in nerve growth factor- differentiated PC12 cells. Neurosci Res. 2003 May;46(1):119-25.
26. Kosuge Y, Koen Y, Ishige K, Minami K, Urasawa H, Saito H, Ito Y. S-allyl-L-cysteine selectively protects cultured rat hippocampal neurons from amyloid beta-protein- and tunicamycin-induced neuronal death. Neuroscience. 2003;122(4):885-95.
27. Gupta VB, Rao KS. Anti-amyloidogenic activity of S-allyl-L-cysteine and its activity to destabilize Alzheimer's beta-amyloid fibrils in vitro. Neurosci Lett. 2007 Dec 18;429(2-3):75- 80.
28. Javed H, Khan MM, Khan A, Vaibhav K, Ahmad A, Khuwaja G, Ahmed ME, Raza SS, Ashafaq M, Tabassum R, Siddiqui MS, El-Agnaf OM, Safhi MM, Islam F. S-allyl cysteine attenuates oxidative stress associated cognitive impairment and neurodegeneration in mouse model of streptozotocin-induced experimental dementia of Alzheimer's type. Brain Res. 2011 May 10;1389:133-42.
29. Tsai SJ, Chiu CP, Yang HT, Yin MC. s-Allyl cysteine, s-ethyl cysteine, and s-propyl cysteine alleviate β-amyloid, glycative, and oxidative injury in brain of mice treated by D- galactose. J Agric Food Chem. 2011 Jun 8;59(11):6319-26.
30. Nieschlag E. Late-onset hypogonadism: a concept comes of age. Andrology. 2020 Nov;8(6):1506-1511.
31. Feldman HA, Longcope C, Derby CA, Johannes CB, Araujo AB, Coviello AD, Bremner WJ, McKinlay JB. Age trends in the level of serum testosterone and other hormones in middle- aged men: longitudinal results from the Massachusetts male aging study. J Clin Endocrinol Metab. 2002 Feb;87(2):589-98.
32. Brinkmann AO. Molecular mechanisms of androgen action--a historical perspective. Methods Mol Biol. 2011; 776:3-24.
33. Srinivas-Shankar U, Roberts SA, Connolly MJ, O'Connell MD, Adams JE, Oldham JA, Wu FC. Effects of testosterone on muscle strength, physical function, body composition, and quality of life in intermediate-frail and frail elderly men: a randomized, double-blind, placebo- controlled study. J Clin Endocrinol Metab. 2010 Feb;95(2):639-50.
34. Usui T, Kajita K, Kajita T, Mori I, Hanamoto T, Ikeda T, Okada H, Taguchi K, Kitada Y, Morita H, Sasaki T, Kitamura T, Sato T, Kojima I, Ishizuka T. Elevated mitochondrial biogenesis in skeletal muscle is associated with testosterone-induced body weight loss in male mice. FEBS Lett. 2014 May 21;588(10):1935-41.
35. Davey RA, Clarke MV, Russell PK, Rana K, Seto J, Roeszler KN, How JMY, Chia LY, North K, Zajac JD. Androgen Action via the Androgen Receptor in Neurons Within the Brain Positively Regulates Muscle Mass in Male Mice. Endocrinology. 2017 Oct 1;158(10):3684- 3695.
36. Shigehara K, Izumi K, Kadono Y, Mizokami A. Testosterone and Bone Health in Men: A Narrative Review. J Clin Med. 2021 Feb 2;10(3):530.
37. Navarro G, Xu W, Jacobson DA, Wicksteed B, Allard C, Zhang G, De Gendt K, Kim SH, Wu H, Zhang H, Verhoeven G, Katzenellenbogen JA, Mauvais-Jarvis F. Extranuclear Actions of the Androgen Receptor Enhance Glucose-Stimulated Insulin Secretion in the Male. Cell Metab. 2016 May 10;23(5):837-51.
38. Tremblay JJ. Molecular regulation of steroidogenesis in endocrine Leydig cells. Steroids. 2015 Nov;103:3-10.
39. Kritis AA, Stamoula EG, Paniskaki KA, Vavilis TD. Researching glutamate - induced cytotoxicity in different cell lines: a comparative/collective analysis/study. Front Cell Neurosci. 2015 Mar 17;9:91.
40. Meldrum BS. Glutamate as a neurotransmitter in the brain: review of physiology and pathology. J Nutr. 2000 Apr;130(4S Suppl):1007S-15S.
41. Platt SR. The role of glutamate in central nervous system health and disease--a review. Vet J. 2007 Mar;173(2):278-86.
42. Tobaben S, Grohm J, Seiler A, Conrad M, Plesnila N, Culmsee C. Bid-mediated mitochondrial damage is a key mechanism in glutamate-induced oxidative stress and AIF- dependent cell death in immortalized HT-22 hippocampal neurons. Cell Death Differ. 2011 Feb;18(2):282-92.
43. Fukui M, Song JH, Choi J, Choi HJ, Zhu BT. Mechanism of glutamate-induced neurotoxicity in HT22 mouse hippocampal cells. Eur J Pharmacol. 2009 Sep 1;617(1-3):1-11.
44. Ho HJ, Shirakawa H, Yoshida R, Ito A, Maeda M, Goto T, Komai M. Geranylgeraniol enhances testosterone production via the cAMP/protein kinase A pathway in testis-derived I- 10 tumor cells. Biosci Biotechnol Biochem. 2016;80(4):791-7.
45. Nakayama Y, Ho HJ, Yamagishi M, Ikemoto H, Komai M, Shirakawa H. Cysteine Sulfoxides Enhance Steroid Hormone Production via Activation of the Protein Kinase A Pathway in Testis-Derived I-10 Tumor Cells. Molecules. 2020 Oct 14;25(20):4694.
46. Manna PR, Chandrala SP, Jo Y, Stocco DM. cAMP-independent signaling regulates steroidogenesis in mouse Leydig cells in the absence of StAR phosphorylation. J Mol Endocrinol. 2006 Aug;37(1):81-95.
47. Ratner MH, Kumaresan V, Farb DH. Neurosteroid Actions in Memory and Neurologic/Neuropsychiatric Disorders. Front Endocrinol (Lausanne). 2019 Apr 9;10:169.
48. Dyson MT, Kowalewski MP, Manna PR, Stocco DM. The differential regulation of steroidogenic acute regulatory protein-mediated steroidogenesis by type I and type II PKA in MA-10 cells. Mol Cell Endocrinol. 2009 Mar 5;300(1-2):94-103.
49. Hameed A, Ashraf S, Israr Khan M, Hafizur RM, Ul-Haq Z. Protein kinase A-dependent insulinotropic effect of selected flavonoids. Int J Biol Macromol. 2018 Nov;119:149-156.
50. Pocidalo MA, Dang PM, El-Benna J. The protein kinase A negatively regulates reactive oxygen species production by phosphorylating gp91phox/NOX2 in human neutrophils. Free Radic Biol Med. 2020 Nov 20;160:19-27.
51. Schiffer L, Barnard L, Baranowski ES, Gilligan LC, Taylor AE, Arlt W, Shackleton CHL, Storbeck KH. Human steroid biosynthesis, metabolism and excretion are differentially reflected by serum and urine steroid metabolomes: A comprehensive review. J Steroid Biochem Mol Biol. 2019 Nov; 194:105439.
52. Asdaq SM. Antioxidant and hypolipidemic potential of aged garlic extract and its constituent, s-allyl cysteine, in rats. Evid Based Complement Alternat Med. 2015; 2015:328545.
53. Saravanan G, Ponmurugan P. Beneficial effect of S-allylcysteine (SAC) on blood glucose and pancreatic antioxidant system in streptozotocin diabetic rats. Plant Foods Hum Nutr. 2010 Dec;65(4):374-8.
54. Hwang YP, Kim HG, Choi JH, Do MT, Chung YC, Jeong TC, Jeong HG. S-allyl cysteine attenuates free fatty acid-induced lipogenesis in human HepG2 cells through activation of the AMP-activated protein kinase-dependent pathway. J Nutr Biochem. 2013 Aug;24(8):1469-78.
55. Miki S, Inokuma KI, Takashima M, Nishida M, Sasaki Y, Ushijima M, Suzuki JI, Morihara N. Aged garlic extract suppresses the increase of plasma glycated albumin level and enhances the AMP-activated protein kinase in adipose tissue in TSOD mice. Mol Nutr Food Res. 2017 May;61(5).
56. Yue J, López JM. Understanding MAPK Signaling Pathways in Apoptosis. Int J Mol Sci. 2020 Mar 28;21(7):2346.
57. Kim JM, Lee JC, Chang N, Chun HS, Kim WK. S-Allyl-L-cysteine attenuates cerebral ischemic injury by scavenging peroxynitrite and inhibiting the activity of extracellular signal- regulated kinase. Free Radic Res. 2006 Aug;40(8):827-35.
58. Numakawa T, Odaka H, Adachi N. Actions of Brain-Derived Neurotrophin Factor in the Neurogenesis and Neuronal Function, and Its Involvement in the Pathophysiology of Brain Diseases. Int J Mol Sci. 2018 Nov 19;19(11):3650.
59. Lee JS, Kim WY, Jeon YJ, Lee SK, Son CG. Aquilariae Lignum extract attenuates glutamate-induced neuroexcitotoxicity in HT22 hippocampal cells. Biomed Pharmacother. 2018 Oct;106:1031-1038.
60. Tonsomboon A, Prasanth MI, Plaingam W, Tencomnao T. Kaempferia parviflora Rhizome Extract Inhibits Glutamate-Induced Toxicity in HT-22 Mouse Hippocampal Neuronal Cells and Extends Longevity in Caenorhabditis elegans. Biology (Basel). 2021 Mar 26;10(4):264.
61. Reyes-Soto CY, Rangel-López E, Galván-Arzate S, Colín-González AL, Silva-Palacios A, Zazueta C, Pedraza-Chaverri J, Ramírez J, Chavarria A, Túnez I, Ke T, Aschner M, Santamaría A. S-Allylcysteine Protects Against Excitotoxic Damage in Rat Cortical Slices Via Reduction of Oxidative Damage, Activation of Nrf2/ARE Binding, and BDNF Preservation. Neurotox Res. 2020 Dec;38(4):929-940.
62. Yan CK., Zeng FD. Pharmacokinetics and tissue distribution of s-allylcysteine in rats. Asian J. Drug Metab. Pharm. 2005, 5, 61–69.
63. Colín-González AL, Ali SF, Túnez I, Santamaría A. On the antioxidant, neuroprotective and anti-inflammatory properties of S-allyl cysteine: An update. Neurochem Int. 2015 Oct;89:83-91.