Mohammad A Randhawa
Northern Border University, Saudi Arabia
Title: Neuropsychiatric effects of Nigella sativa (Black seed)
Biography
Biography: Mohammad A Randhawa
Abstract
Nigella sativa (N. sativa) seed, commonly known as ‘Black Seed’ in English and ‘Al-Habba Al-Sauda’in Arabic, has been frequently used as a folk medicine for a large number of diseases since ancient times. N. sativa was shown to contain many active components, e.g., thymoquinone, thymohydroquinone, dithymoquinone, thymol, carvacrol, nigellimine-N-oxide, nigellicine, nigellidine and alpha-hederin. In addition, N. sativa seed, its oil, various extracts and active components are known to possess very useful pharmacological effects to include: immune stimulation, antiinflammatory, antioxidant, anticancer, hypoglycemic, antihypertensive, antiasthmatic, antimicrobial, antiparasitic; and effects on neurological and psychiatric disorders. Some authors have reviewed these pharmacological activities in general but their neuropsychiatric effects are not separately and adequately described. The literature search has revealed a lot of publications pertaining to the actions of N. sativa in neurological and psychiatric problems, e.g., the control of pain, Parkinsonism, epilepsy and anxiety, as well as improvement of memory, alertness, elevation of mood and feeling of good health, etc. Moreover, because of its antioxidant and antiinflammatory effects was shown to provide neuroprotection from spinal cord injury and prevent damage to brain cells from various nerve toxins in experimental animal models. The present article is intended to briefly review the valuable efforts of scientists to investigate the pharmacological activities and therapeutic potential of this precious natural herb pertaining to the neuropsychiatric disorders. It is hoped that our manuscript would be of particular interest to the neurologists and psychiatrists, and the information provided would also benefit general physicians, medical students and the community.