ASPARAGUS RACEMOSUS, A CLIMBING AYURVEDIC MEDICINAL PLANT: REVIEW ON ITS CULTIVATION, MORPHOLOGY AND MEDICINAL SIGNIFICANCE
1. Antimicrobial activity:
The bacterial organisms including Gram positive and Gram negative like different species of Bacillus, Staphylococcus, Salmonella and Pseudomonas are the main source to cause severe infections in humans. Because these organisms have the ability to survive in harsh condition due to their multiple environmental habitats (Ahameethunisa & Hopper, 2010). In the worldwide as well as in the developing countries, the most human died due to infectious bacterial diseases (Nathan, 2004). The various inorganic and organic solvent extract of A. Racemosus show anti-bacterial and anti-fubgal activity (Patel & Patel, 2013). The root extracts of A. racemosus have been investigated for antibacterial property employing standard cylinder method. Microbes used were Bacillus subtilis, Staphylococcus aureus, Staphylococcus werneri, Pseudomonas aeruginosa and Escherichia coli, Proteus mirabilis, Kleibsella pneumonia, Pseudomonas putida. Both grampositive and gram-negative bacteria were sensitive to the extract. Ethanolic extract of concentration100mg/ml, 300mg/ml, 500mg/ml were prepared and there antibacterial activity was comparable to reference standard drug Gentamycin (25μg), Staphylococcus aureus the gram positive bacteria were most affected (Ravishankar et al., 2012). Experimental findings suggested that methanol extracts possessed high anticandidal activity against different Candida species. The MIC (Minimum inhibitory concentration) values were between 2.5 to 0.312 mg/ml, while MFC (Minimum fungicidal concentration) values ranged between 5 to 0.625 mg/ml (Uma, Prabhakar, & Rajendran, 2009).
2. Anticancer activity:
Cancer is a deadly disease of striking significance in the world today. It is one of the most serious health threats, responsible for the death of about seven million people in a year and a great challenge to medical science (Makar, Saha, & Singh, 2018). The root extract was shown to possess a protecting impact within the duct gland cell cancer eighty. endocrineelements of the A. racemosus were investigated for the apoptotic activity and inferred to possess the capabilityto tumour necrobiosis (Bhutani, Paul, Fayad, & Linder, 2010). Anticancer property of shatavarins (containing Shatavarin IV) which was extract from the roots of have been evaluated by MTT assay using MCF-7 (human breast cancer), HT-29 (human colon adenocarcinoma) and A-498 (human kidney carcinoma) cell lines and in vivo experimental model of Ehrlich ascites carcinoma (EAC) tumor bearing rats (Mitra, Prakash, & Sundaram, 2012). An aqueous solution of the crude alcoholic extract of the roots extract also shows antiprotozoal activity (Alok et al., 2013).
3. Antidepressant activity:
Adaptogenic drugs are such drugs which are useful as antistress agents by enhancing non-specific resistance of the body. Although, the adaptogenic effect of A. racemosus is well documented, its use in psychological disorders like depression is not scientifically evaluated. Hence, the present investigation evaluates the antidepressant effect of MAR standardized to saponins (62.2% w/w). Rats were given methanolic extract of roots of A. racemosus in doses of 100, 200 and 400 mg/kg every day for 7 day and then subjected to forced swim test (FST) and learned helplessness test (LH). The results showed that MAR decreased immobility in FST and increased avoidance response in LH indicating antidepressant activity (Singh, Garabadu, Muruganandam, Joshi, & Krishnamurthy, 2009).
4. Antiurolithiatic activity:
The mice treated with ethanolic extract of A. racemosus at doses 800 and 1 600 mg/kg significantly (P<0.05) decreased the serum concentrations of calcium, phosphorus, urea and creatinine (Jagannath, Chikkannasetty, Govindadas, & Devasankaraiah, 2012).
5. Diuretic activity:
Critical toxicity study revealed no fatality even with the highest dose, and the diuretic study revealed significant diuretic activity in dose of 3 200 mg/kg (Kumar et al., 2010).
Abana, herbomineral formulation maketed by Himalaya Drugs Company, have been found beneficial for controlling hypercholesterolemia, prevention and management of coronary heart disease. The lipid-lowering capability of A. racemosus root extract in hypercholesteremic mice was verified and the investigation revealed that primary reason of antihypercholestrolemic effect was increased excretion of cholesterol, neutral sterols, bile acid and increase in hepatic bile acid content (Tiwari, Agarwal, Shukla, & Dubey, 1990).
7. Antineoplastic activity:
Chloroform-methanol (1:1) extract of fresh root of A. racemosus has been reported to reduce the tumor case in female rats treated with 7, 12 dimethyl benza. This exploit is suggested to be medicated by virtue of mammotropic and/ or lactogenic (Rao, 1981).
8.Effect on central nervours system:
Neither stimulant nor depressant action of lactare on central nervous system (CNS) have been reported in albino mice. Shatavari did not produce catalepsy in experimental rats, even with massive oral doses, telling that its action may be outside the blood-brain barrier (BBB), similar to that of metoclopramide (Parihar & Hemnani, 2004).
9. Anti-inflammatory effects:
ACE inhibited topical edema in the mouse ear, following supervision at 200 mg/kg (i.p.), important to substantial reductions in skin thickness and tissue weight, inflammatory cytokine production, neutrophil-mediated myeloperoxidase activity, and various histopathological indicators. Furthermore, ACE was fruitful at reducing inflammatory damage induced by chronic TPA exposure and evoked a significant inhibition of vascular permeability influence by acetic acid in rat (Choo et al., 2009).
10. Anti-HIV effects:
A. racemosus is also known to show immunomodulatory activity. Steroidal saponin glycosides have been reported from these extracts. Compound 19 isolated from the ethanolic extract exhibited the highest anti-HIV activity as compared to other saponin glycosides 35. Glycoside 20 with two sugars exhibited weak anti-HIV activity.
Fig.4 SAR studies of anti-HIV chemical constitutes of A.racemosus.
11. Antihepatotoxic activity:
Ethanolic extract of root of A. racemosus has been exposed to significantly decrease the enhanced levels of alanine transakinase, aspartate transaminase and alkaline phosphate in carbon tetra chloride (CCl 4 ) induced heptic damagein rats, indicating antihepatotoxic potential of A. Racemosus (Zhu, Zhang, Zhao, Wang, & Qu, 2010).
12. Gastrointestinal effects:
The dried crushed root of A. racemosus is used in Ayurveda for dysepesia. Oral administration of powdered dried root of A. racemosus has been found to stimulate gastric emptying in healthy volunteers. Its action is reported to be comparable with that of the synthetic dopamine antagonist metoclopramide (Dalvi, Nadkarni, & Gupta, 1990). In Ayurveda, A. racemosus has also been mentioned for the treatment of ulcerative disorder of stomach and parinama sula, a clinical object akin to the duodenal ulcer disease
13. Antioxidant effects:
The probable antioxidant activity of crude extract and purified water fraction of A. racemosus against member injury induced by the free radicals generated during gama (γ) radiation were studied in rat liver mitochondria. Using an effective dose of 450 Gray antioxidant effect of A. racemosus extract were studied against oxidative damage term of protection against lipid peroxidation, protein oxidation. cantly inhibited lipid peroxidation and protein oxidation. The antioxidant activity of P3 fraction was more distinct against lipid peroxidation, as assessed by thiobarbituric acid reactive substance generation, while that of crude extract was more active in inhibiting proteins oxidation (Visavadiya, Soni, & Madamwar, 2009).
14. Teratogenicity effects:
Shatvari is a herb used as a rasayna in Indian Ayurveda and is considered both male and female reproduction tonic. Methanolic extract of A. racemosus roots (MAR), 100 mg/kg per day for 60 d, showed teratological disordres in terms of increase resorption of fetuses, gross malformation e.g. swelling in legs and intrauterine growth. A. racemosus should be used pregnancy constantly as its exposure during that period may cause damage to the offspring (Goel, Prabha, Kumar, Dorababu, & Singh, 2006).
15. Increase memory and protects against amnesia:
MAR also significantly reversed scopolamine and sodium nitrite-induced increase in transfer latency on elevated plus maze indicating anti-amnesic activity. Further, MAR dose-dependently inhibited acetylcholinesterase enzyme in specific brain regions (prefrontal cortex, hippocampus and hypothalamus). Thus, MAR showed nootropic and anti-amnesic activities. A. racemosus extract demonstrated significant decrease in latency time during retention trials. A. racemosus can be recognized to their antioxidant, neuroprotective and cholinergic properties (Ojha, Sahu, Muruganandam, Singh, & Krishnamurthy, 2010)
16. Immunostimulant activity:
Intra-abdominal sepsis is key causes of mortality following trauma and bowel surgery. . Immunomodulating property of A. racemosus has been revealed to defend the rat and mice against experimental induced abdominal sepsis (Thatte, Chhabria, Karandikar, & Dahanukar, 1987). Oral administration of decotion of powdered root of A. racemosus been reported to produce leucocytosis and predominant neutrophilia along with greater phagocytic activity of the macrophages and polymorphs.
17. Miscellaneous effects:
Alcoholic extract of root of A. racemosus was found to have trivial diuretic effect in rats and hypoglycemic action in bunny, but no anticonvulsant and antifertility effect was observed in rats and rabbits, respectively. However, it did show some antiamoebic effect in rats.
Table no.2 List of Marketed drugs contain A. Racemosus
CONCLUSION: A. Racemosus is an important medicinal plant which used from ancient time in India, this review paper could be an answer to the people seeking for better therapeutic agents from natural sources which is believed to be more efficient with lesser or no side effects when compared to the commonly used synthetic agents.
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