1. Abbas SS, Singh N. Anti-stress Agents (Herbs) of Indian Origin - Herbal Drugs, A twenty first century perspective. Delhi: Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization (DRDO), Govt. of India; 2006. pp. 578–591.
2. Abbas SS, Singh V, Bhalla M, Singh N. Clinical Study of Organic Ashwagandha in cases of Parkinsonism, Neuropathy, Paralysis and Uterine Tumours (Fibroids and other tumours) including Cutaneous Endodermal Carcinoma; Proc., National Seminar on “Eco-friendly Herbs of Ayurveda in Healthcare of Mankind: A Strategy for Scientific Evaluation an Uniform Standardization” - Lucknow; 2004. p. 81.
3. Abbas SS, Bhalla M, Singh N. Proc workshop on essential medicines, adverse drug reactions and therapeutic drug monitoring. Lucknow: Scientific Convention Centre; 2005. A clinical study of Organic Ashwagandha in some cases of uterine tumors (fibroids) and dermatofibrosarcoma; pp. 143–144.
4. Abdel-Magied EM, Abdel-Rahman HA, Harraz FM. The effect of aqueous extracts of Cynomorium coccineum and Withania somnifera on testicular development in immature Wistar rats. J Ethnopharmacol. 2001;75:1–4. [PubMed] 5. Archana R, Namasivayam A. Antistressor effect of Withania somnifera. J Ethnopharmacol. 1999;64:91–93. [PubMed]
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8. Bhandari CR. Ashwagandha (Withania somnifera) “Vanaushadhi Chandroday” (An Encyclopedia of Indian Herbs) Vol. 1. Varanasi, India: CS Series of Varanasi Vidyavilas Press; 1970. pp. 96–97.
9. Bhattacharya SK, Goel RK, Kaur R, Ghosal S. Anti - stress activity of Sitoindosides VII and VIII. New Acylsterylglucosides from Withania somnifera. Phytother Res. 1987;1:32–37.
10. Bhattacharya SK, Kumar A, Ghosal S. Effects of glycowithanolides from Withania somnifera on animal model of Alzheimer's disease and perturbed central cholinergic markers of cognition in rats. Phytother Res. 1995;9:110–113.
11. Budhiraja RD, Sudhir S. Review of biological activity of withanolides. JSIR. 1987;46:488–491.
12. Changhadi Govardhan Sharma, author. Ashwagandharishta - Rastantra Sar Evam Sidhyaprayog Sangrah - Krishna-Gopal Ayurveda Bhawan (Dharmarth Trust) Nagpur: 1938. pp. 743–744.
13. Charak Samhita 6000BC, author. Charaka translation into English: Translator: Shree Gulabkunverba Ayurvedic Society. Jamnagar, India: 1949.
14. Dekosky S, Scheff SW. Synapse loss in frontal cortex biopsies in Alzheimer's disease: correlation with cognitive severity. Ann Neurol. 1990;27:457–464. [PubMed] 15. Dickon TC, Vickers JC. The morphological phenotype of b-amyloid plaques and associated neuritic changes in Alzheimer's disease. Neuroscience. 2001;105:99–107. [PubMed]
16. Dixit KS, Agarwal AK, Seth PK, Singh N. World Congress on Biotech Dev Med Subs Plants & Marine Origin. Lucknow (India): King George Medical College; 1995. Effect of Withania somnifera, Panex ginseng and Cannabis indica and radio ligand binding with neurohumoral in the CNS; p. 141.
17. Ghosal S, Srivastava RS, Bhattacharya SK, Upadhyay SN, Jaiswal AK, Chattopadhyay U. Immunomodulatory and CNS effects of sitoindosides IX and X, two new glycowithanolides form Withania somnifera. Phytother Res. 1989;2:201–206.
18. Gunne LM, Andren PE. An animal model for coexisting tardive dyskinesia and tardive parkinsonism: A glutamate hypothesis for tardive dyskinesia. Clin Neuropharmacol. 1993;16:90–95. [PubMed]
19. Kalsi R, Singh N, Gupta GP. Physiology of Human Performance. Delhi: Defence Institute of Physiology and Allied Sciences, Defence Research and Development Organization (DRDO), Govt. of India; 1987. Effects of stress and anti-stress drugs on succinate dehydrogenase enzyme (SDH) in rat brain (A possible role of SDH in stress adaptation phenomenon) pp. 114–117.
20. Kritikar KR, Basu BD. Withania somnifera, Indian medicinal plants. 2nd Edition. IIIrd. Lalit Mohan Basu, Allahabad; 1935. pp. 1774–1776.
21. Kuboyam A T, Tohda C, Komatsu K. Withanoside IV and its active metabolite, sominone, attenuate A beta(25–35)-induced neurodegeneration. Eur J Neurosci. 2006;23(6):1417–1426. [PubMed]
22. Kulkarni SK, Sharma A, Verma A, Ticku MK. GABA receptor mediated anticonvulsant action of Withania somnifera root extract. Indian Drugs. 1993;30:305–312.
23. Mazen ES, Pavelescu M, Grigorescu E. Testing of Analgesic Activity of Dichloromethanic and Methanolic Extract from Withania-Somnifera Roots. 3–4. Vol. 94. Revista Medico-Chirurgicala Societatii de Medici si Naturalisti din Iasi; 1990. Contributions to the Pharmacodynamic Study of roots of Withania somnifera Dun Species Of Pakistani origin; pp. 603–605. [PubMed]
24. Misra B. Ashwagandha - Bhavprakash Nigantu (Indian Materia Medica) Varanasi: Chaukhambha Bharti Academy; 2004. pp. 393–394.
25. Mishra LC, Singh BB, Dagenais S. Scientific basis for the therapeutic use of Withania somnifera. (Ashwagandha): A review. Alternative Medicine Reviews. 2000;5:334–346. [PubMed]
26. Nagashyana N, Sankarankutty P, Nampoothiri MRV, Moahan P, Mohan Kumar P. Association of L- dopa with recovery following Ayurvedic medication in Parkinson's disease. J Neurol Sci. 2000;176:1121–1127.
27. Sharma GS. Ashwagandharishta - Rastantra Sar Evam Sidhyaprayog Sangrah - Krishna-Gopal Ayurveda Bhawan (Dharmarth Trust) Nagpur: 1938. pp. 743–744.
28. Sharma PV. Ashwagandha, Dravyaguna Vijana, Chaukhambha Viashwabharti. Varanasi: 1999. pp. 763–765.
29. Singh N, Agarwal AK, Lata A, Kohli RP. Evaluation of ‘adaptogenic’ properties of Withania somnifera. Proc Indian Pharmacological Society. 1976;17
30. Singh N, Agarwal AK, Lata A, Kohli RP. XIIth Scientific Seminar on Indian Medicine. Vol. 4. Varanasi: Institute of Medical Sciences; 1977. Experimental evaluation of ‘adaptogenic’ properties of Withania somnifera.
31. Singh N. A new concept on the possible therapy of stress disease with ‘Adaptogens’ (Anti-stress drugs) of indigenous plant origin. Curr Med Prac. 1981;25:50–55.
32. Singh N, Singh SP, Sinha JN, Shanker K, Kohli RP. Withania somnifera (Ashwagandha) A rejuvenator herbal drug which enhances survival during stress (An adaptogen) Int J Crude Drug Res. 1982;3:29–35.
33. Singh N, Singh SP, Nath C, Kohli RP, Bhargava KP. 5th Sepal Congress of Rheumatology. Bangkok: 1984. Anti-stress plants as anti-rheumatic agents; p. 37.
34. Singh N. A pharmaco-clinical evaluation of some Ayurvedic crude plant drugs as anti-stress agents and their usefulness in some stress diseases of man. Ann Nat Acad Ind Med. 1986;2(1):14–26.
35. Singh N, Singh SP, Dixit KS, Saxena RC, Kohli RP. A Placebo Controlled Clinical Trial of Cyprus rotundus, Withania somnifera and their Combination in cases of Rheumatoid Arthritis. Proc International Seminar. 1986a;2:18–21.
36. Singh N, Singh SP, Nath R, Singh DR, Gupta ML, Kohli RP, Bhargava KP. Prevention or Urethane-induced lung adenomas by Withania somnifera (L.) Dunal in albino mice. Int J Crude Drug Res. 1986b;24(2):99–100.
37. Singh N. XXXVIth Annual Congress on Medicinal Plant Research (Freiburg) 1988. Effect of Withania somnifera and Panax ginseng on dopaminergic receptors in rat brain during stress; p. 28.
38. Singh N. Stress disease and herbal medicine. Inaugural issue of J Biotech Med Plant Res, Lucknow. 1993a:2–4.
39. Singh N. Effect of Anti-stress agents on receptor population in rat brain. Inaugural issue of J Biotech Med Plant Res, Lucknow. 1993b:14.
40. Singh N, Misra N. Experimental methods tools for assessment of anti-stress activity in medicinal plants. Journal of Biomedical Research. 1993;12(182):124–127.
41. Singh N. World Congress on Biotech Dev Med Subs Plants & Marine Origin. Lucknow (India): King George Medical College; 1995a. Stress disease and herbal medicine; p. 48.
42. Singh N. Proc Vth WCCN. China: 1995b. Anti-stress (Ayurvedic Plants) Ocimum sanctum (Tulsi) and Withania somnifera (Ashwagandha) in prevention and treatment of cardiovascular disorders; p. 10.
43. Singh N, Singh V, Abbas SS. Proc 2nd World Cong Biotech Dev Herbal Med. Lucknow (India); 2003. Role of Adaptogens / Antistress agents of plant origin in health care & stress diseases of man; p. 33.
44. Singh N. Dilemma of Ayurvedic Herbal Medicines / Food Supplements Proc workshop on Essential Medicines, Adverse Drug Reactions and Therapeutic Drug Monitoring. Lucknow: Dept. of Pharmacology & Therapeutics, KGMU, Scientific Convention Centre; 2005. pp. 35–41.
45. Singh N. Ayurvedo-Herbal Medicines - The Need of the Time - Herbal Drugs, A twenty first century perspective. Delhi: Institute of Nuclear Medicine and Allied Sciences, Defence Research and Development Organization (DRDO), Govt. of India; 2006. pp. 535–547.
46. Singh N. Herbs - The Life of Man, Need Pharmaco-clinical Studies for their Scientific Validation - Relevance of Modern Methods of Pharmacological Studies to Traditional Medicine. Lucknow: Department of Pharmacology & Therapeutics, C.S.M. Medical University, Scientific Convention Centre; 2008. pp. 37–43.
47. Singh N, Gilca M. Herbal Medicine - Science embraces tradition - a new insight into the ancient Ayurveda. Germany: Lambert Academic Publishing; 2010. pp. 51–67.
48. Singh N, Hoette Y, Miller R. Tulsi ‘The Mother Medicine of Nature’. 2nd Edition. Lucknow: International Institute of Herbal Medicine; 2010. pp. 28–32.
49. Singh RH, Udupa KN. Clinical and experimental studies on rasayana drugs and rasayana therapy. New Delhi: Special Research Monograph, Central Council for Research in Ayurveda and Siddha (CCRAS), Ministry of Health and Family Welfare; 1993.
50. Singh RS. Ashwagandha, Vanaushadhi Nidharsika (Ayurvedic Pharmacopia) UP Sansthan: 1983. pp. 30–31.
51. Singh SP, Singh DR, Gupta ML, Singh N, Kohli RP. An experimental evaluation of anti-tumor activity of Withania somnifera (Ashwagandha) and “Geriforte” XI Annual Conf IPS Ind Jour Pharmacol. 1979;11(1):65.
52. Sumanran VN, Boddul S, Madhuri D. Differential growth inhibitory effects of Withania somnifera root on CHO cells. Phytother Res. 2007;21:1–4. [PubMed]
53. Twaij HAA, Elisha EE, Khalid RM. Analgesic studies on some Iraqi medicinal plants. International Journal of Crude Research. 1989;27:109–112.