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REVIEW ARTICLES
Tinospora cordifolia: One plant, many roles
Soham Saha, Shyamasree Ghosh
April-June 2012, 31(4):151-159
DOI:10.4103/0257-7941.107344  PMID:23661861
Natural products with medicinal value are gradually gaining importance in clinical research due to their well-known property of no side effects as compared to drugs. Tinospora cordifolia commonly named as "Guduchi" is known for its immense application in the treatment of various diseases in the traditional ayurvedic literature. Recently the discovery of active components from the plant and their biological function in disease control has led to active interest in the plant across the globe. Our present study in this review encompasses (i) the genetic diversity of the plant and (ii) active components isolated from the plant and their biological role in disease targeting. The future scope of the review remains in exploiting the biochemical and signaling pathways affected by the compounds isolated from Tinospora so as to enable new and effective formulation in disease eradication.
  40 13,193 1,754
ORIGINAL ARTICLES
Study of antihyperglycaemic activity of medicinal plant extracts in alloxan induced diabetic rats
Anoja P Attanayake, Kamani A. P. W. Jayatilaka, Chitra Pathirana, Lakmini K. B. Mudduwa
April-June 2013, 32(4):193-198
DOI:10.4103/0257-7941.131970  PMID:24991066
Background: Diabetes mellitus, for a long time, has been treated with plant derived medicines in Sri Lanka. Aim: The aim of this study is to determine the efficacy and dose response of oral antihyperglycaemic activity of eight Sri Lankan medicinal plant extracts, which are used to treat diabetes in traditional medicine in diabetic rats. Materials and Methods: Medicinal plants selected for the study on the basis of documented effectiveness and wide use among traditional Ayurveda physicians in the Southern region of Sri Lanka for the treatment of diabetes mellitus. The effect of different doses of aqueous stem bark extracts of Spondias pinnata (Anacardiaceae), Kokoona zeylanica (Celastraceae), Syzygium caryophyllatum (Myrtaceae), Gmelina arborea (Verbenaceae), aerial part extracts of Scoparia dulcis (Scrophulariaceae), Sida alnifolia (Malvaceae), leaf extract of Coccinia grandis (Cucurbitaceae) and root extract of Languas galanga (Zingiberaceae) on oral glucose tolerance test was evaluated. A single dose of 0.25, 0.50, 0.75, 1.00, 1.25, 2.00 g/kg of plant extract was administered orally to alloxan induced (150 mg/kg, ip) diabetic Wistar rats (n = 6). Glibenclamide (0.50 mg/kg) was used as the standard drug. The acute effect was evaluated over a 4 h period using area under the oral glucose tolerance curve. Statistical Analysis: The results were evaluated by analysis of variance followed by Dunnett's test. Results: The eight plant extracts showed statistically significant dose dependent improvement on glucose tolerance (P < 0.05). The optimum effective dose on glucose tolerance for six extracts was found to be 1.00 g/kg in diabetic rats with the exception of C. grandis: 0.75 g/kg and L. galanga: 1.25 g/kg. C onclusion: The aqueous extract of G. arborea, S. pinnata, K. zeylanica, S. caryophyllatum, S. dulcis, S. alnifolia, L. galanga and C. grandis possess potent acute antihyperglycaemic activity in alloxan induced diabetic rats.
  15 2,890 157
BRIEF REPORT
Identification of bacterial endophytes associated with traditional medicinal plant Tridax procumbens Linn.
Jagadesan Preveena, Subhash J Bhore
January-March 2013, 32(3):173-177
DOI:10.4103/0257-7941.123002  PMID:24501447
Background: In traditional medicine, Tridax procumbens Linn. is used in the treatment of injuries and wounds. The bacterial endophytes (BEs) of medicinal plants could produce medicinally important metabolites found in their hosts; and hence, the involvement of BEs in conferring wound healing properties to T. Procumbens cannot be ruled out. But, we do not know which types of BEs are associated with T. procumbens. Objective: The objective of this study was to investigate the fast growing and cultivable BEs associated with T. procumbens. Materials and Methods: Leaves and stems of healthy T. procumbens plants were collected and cultivable BEs were isolated from surface-sterilized leaf and stem tissue samples using Luria-Bertani (LB) agar (medium) at standard conditions. A polymerase chain reaction was employed to amplify 16S rRNA coding gene fragments from the isolates. Cultivable endophytic bacterial isolates (EBIs) were identified using 16S rRNA gene nucleotide sequence similarity based method of bacterial identification. Results: Altogether, 50 culturable EBIs were isolated. 16S rRNA gene nucleotide sequences analysis using the Basic Local Alignment Search Tool (BLAST) revealed identities of the EBIs. Analysis reveals that cultivable Bacillus spp., Cronobacter sakazakii, Enterobacter spp., Lysinibacillus sphaericus, Pantoea spp., Pseudomonas spp. and Terribacillus saccharophilus are associated with T. procumbens. Conclusion: Based on the results, we conclude that 24 different types of culturable BEs are associated with traditionally used medicinal plant, T. procumbens, and require further study.
  13 3,349 195
ORIGINAL ARTICLES
Estimation of total alkaloid in Chitrakadivati by UV-Spectrophotometer
Manjunath Ajanal, Mahadev B Gundkalle, Shradda U Nayak
April-June 2012, 31(4):198-201
DOI:10.4103/0257-7941.107361  PMID:23661869
Background: Herbal formulation standardization by adopting newer technique is need of the hour in the field of Ayurvedic pharmaceutical industry. As very few reports exist. These kind of studies would certainly widen the herbal research area. Chitrakadivati is one such popular herbal formulation used in Ayurveda. Many of its ingredients are known for presence of alkaloids. Methodology: Presence of alkaloid was tested qualitatively by Dragondroff's method then subjected to quantitative estimation by UV-Spectrophotometer. This method is based on the reaction between alkaloid and bromocresol green (BCG). Results and Conclusion: Study discloses that out of 16 ingredients, 9 contain alkaloid. Chitrakadivati has shown 0.16% of concentration of alkaloid and which is significantly higher than it's individual ingredients.
  13 7,480 822
REVIEW ARTICLES
Effects of various Prāṇāyāma on cardiovascular and autonomic variables
L Nivethitha, A Mooventhan, NK Manjunath
October-December 2016, 36(2):72-77
DOI:10.4103/asl.ASL_178_16  PMID:28446827
Cardiovascular functions are controlled by neural factors, temperature, hormones, etc., Of these, neural factors primarily concern the autonomic nervous system, which plays a major role in maintaining and regulating cardiac functions, e.g., blood pressure and heart rate. Prāṇāyāma is one of the most important yogic practices. There are various review articles on Yoga and its effects but, though Prāṇāyāma is a part of yoga, there is lack of review articles. To the best of our knowledge there is no known review article on effect of various Prāṇāyāma on cardiovascular and autonomic variables. To provide a general overview about the effect of various prāṇāyāma (breathing techniques) on cardiovascular and autonomic variables. A narrative review was performed based on the available scientific literature. An electronic data search was performed in Medline/PubMed database to review relevant articles, using keywords such as “Prāṇāyāma, Yogic breathing techniques, Unilateral nostril breathing, Alternate nostril breathing, Kapalbhati, Bhastrika and Bhramari Pranayama”. All the relevant articles published from 1988 to 06-04-2016 were included in this review. Slow type of yogic breathing technique was reported to produce beneficial effect on cardiovascular and autonomic variables while fast breathing techniques do not produce such effects. There is lack of consistency in the results of specific nostril yogic breathing techniques and the mechanisms behind the effects of various prāṇāyāma. This review suggests that different types of Prāṇāyāma techniques produce different effects and the mechanisms behind these effects are not fully understood.
  12 3,982 193
ORIGINAL ARTICLES
Chemical composition and antimicrobial activity of the essential oil of Ocimum basilicum L. (sweet basil) from Western Ghats of North West Karnataka, India
Rajesh K Joshi
January-March 2014, 33(3):151-156
DOI:10.4103/0257-7941.144618  
Context: Ocimum basilicum L. (Lamiaceae) commonly known as sweet basil, has been used as a traditional medicinal plant for the treatment of headaches, coughs, diarrhea, constipation, warts, worms, and kidney malfunctions. Materials and Methods: The essential oil of the flowering aerial parts of O. basilicum growing in the Western Ghats region of North West Karnataka, India, was obtained by hydro-distillation and analyzed by gas chromatography equipped with flame ionization detector and gas chromatography coupled to mass spectrometry (GC-MS). The oil was tested against six Gram-positive, eight Gram-negative bacteria, and three fungi by the tube-dilution method at a concentration range of 5.00-0.009 mg/mL. Results: Twenty-five constituents were identified in the essential oil of O. basilicum. The major constituents were identified as methyl eugenol (39.3%) and methyl chavicol (38.3%), accounting for 98.6% of the total oil. The oil was found to be active against Gram-positive, Gram-negative bacteria, and fungi with minimal bactericidal concentration values in the range of 0.143 ± 0.031 to 0.572 ± 0.127 mg/mL, 0.781 ± 0.382 to 1.875 ± 0.684 mg/mL, and 0.312 ± 0.171 to 0.442 ± 0.207 mg/mL, respectively. Conclusion: The essential oil of O. basilicum of this region contains methyl eugenol/methyl chavicol chemotype and has bactericidal properties.
  11 2,721 108
REVIEW ARTICLE
Significance of gingers (Zingiberaceae) in Indian System of Medicine - Ayurveda: An overview
Konickal Mambetta Prabhu Kumar, Gopinathan Ramanikutty Asish, Mamiyil Sabu, Indira Balachandran
April-June 2013, 32(4):253-261
DOI:10.4103/0257-7941.131989  PMID:24991077
Background: Family Zingiberaceae consists of the large number of medicinal plants and is well-known for its use in ethnomedicine and play a major role in Indian System of Medicine, Ayurveda. Objective: The aim of this study is the documentation of Zingiberaceous plants used in Ayurveda, adding information to the systematics, vernacular names and chemistry with experimental data. Materials and Methods: The live plants were collected from wild and successfully conserved at Herbal Garden of Arya Vaidya Sala, Kottakkal. The experimental data of each species has been collected from the various sources. The photographs were taken and all relevant data documented. Results and Conclusion: A total of 13 species belonging to 7 genera of Zingiberaceae were documented. The work will be useful to students and researchers as it provides an easy access to Zingiberaceous plants used in Ayurveda.
  11 4,816 272
ORIGINAL ARTICLES
Analgesic and anti-inflammatory activity of root bark of Grewia asiatica Linn. in rodents
Udaybhan Singh Paviaya, Parveen Kumar, Manish M Wanjari, S Thenmozhi, BR Balakrishnan
January-March 2013, 32(3):150-155
DOI:10.4103/0257-7941.122998  PMID:24501443
Background: Grewia asiatica Linn. (Family: Tiliaceae), called Phalsa in Hindi is an Indian medicinal plant used for a variety of therapeutic and nutritional uses. The root bark of the plant is traditionally used in rheumatism (painful chronic inflammatory condition). Aims: The present study demonstrates the analgesic and anti-inflammatory activity of root bark of G. asiatica in rodents. Settings and Design: The methanolic extract of Grewia asiatica (MEGA) and aqueous extract of Grewia asiatica (AEGA) of the bark were prepared and subjected to phytochemical tests and pharmacological screening for analgesic and anti-inflammatory effect in rodents. Materials and Methods: Analgesic effect was studied using acetic acid-induced writhing in mice and hot plate analgesia in rats while anti-inflammatory activity was investigated using carrageenan-induced paw oedema in rats. The MEGA or AEGA was administered orally in doses of 200 and 400 mg/kg/day of body weight. Statistical Analysis: Data were analysed by one-way analysis of variance followed by Dunnett's test. Results: The extracts showed a significant inhibition of writhing response and increase in hot plate reaction time and also caused a decrease in paw oedema. The effects were comparable with the standard drugs used. Conclusions: The present study indicates that root bark of G. asiatica exhibits peripheral and central analgesic effect and anti-inflammatory activity, which may be attributed to the various phytochemicals present in root bark of G. asiatica.
  10 3,309 241
Effect of aqueous leaves extract of Costus afer Ker Gawl (Zingiberaceae) on the liver and kidney of male albino Wistar rat
AN Ezejiofor, CN Orish, Orish Ebere Orisakwe
July-September 2013, 33(1):4-9
DOI:10.4103/0257-7941.134554  PMID:25161323
Background: The use of medicinal plants in Nigeria has significantly increased over recent years as it is easily accessible, cheap and the strong belief that herbal remedies are natural and therefore non toxic. Aims: This study aims to investigate the sub-chronic toxicity (28-day) of the aqueous extract of Costus afer Ker Gawl leaves on the liver and kidney of male albino Wistar rats. Materials and Methods: A total of 20 male albino Wistar rats (113-205 g) divided into four groups of five weight-matched animals each, were used for the study. Group 1 received standard feed and water ad libitium and served as the control. Group 2, 3 and 4 received 375, 750 and 1125 mg/kg of aqueous extract of C. afer leaves respectively. The animals were sacrificed under ether anesthesia and the organs were harvested, weighed and histopathological studies carried out. The effect of C. afer on the hepatic biomarkers aspartate aminotransferase (AST), alanine aminotransferase (ALT); alkaline phosphatase (ALP); triglyceride (TG); total bilirubin (TB); conjugated bilirubin (CB); albumin (ALB) and kidney biomarkers urea, creatinine, sodium, potassium and bicarbonate were investigated. Statistical Analysis: Data were evaluated using Mann Whitney. If P ≤ 0.05 groups were considered to be significantly different. Results: C. afer contained alkaloids, saponins, flavonoids, anthraquinones, cardiac glycosides, terpenoids, phenolic compounds and tannins. The average body, organ, relative weights, feed and fluid intake showed no significant changes (P > 0.05) when compared to the control. The liver function tests (ALT, ALP, AST, CB, TB and ALB) showed significant differences (P < 0.05) in the test groups when compared with the control while TG showed no statistical difference (P > 0.05). The kidney function tests (urea, creatinine, sodium, potassium and bicarbonate) showed no significant differences (P > 0.05) in the test groups when compared to the control. Conclusion: Costus afer may be hepatotoxic but non-toxic to the kidney.
  10 3,793 174
The effects of green Ocimum basilicum hydroalcoholic extract on retention and retrieval of memory in mice
Shadi Sarahroodi, Somayyeh Esmaeili, Peyman Mikaili, Zahra Hemmati, Yousof Saberi
April-June 2012, 31(4):185-189
DOI:10.4103/0257-7941.107354  PMID:23661866
The purpose of this study was evaluation of green Ocimum basilicum (sweet basil) hydroalcoholic extract on memory retention and retrieval of mice by using passive avoidance apparatus. For this purpose, after weighting, coding and classifying the mice, they were grouped (n0 = 8) as follow as: test groups (electric shock plus sweet basil extract by doses: 100, 200, 400 and 800 mg/kg, i.p.), control group (Only electric shock) and blank group (electric shock plus normal saline). In all mentioned groups delay time of leaving the platform for both retention and retrieval test of memory was measured. In retention test, sweet basil extract was administered immediately after receiving electric shock and in retrieval test it was administered 24 hours after receiving electric shock.The results indicated that hydroalcoholic extract of green Ocimum basilicum significantly ( P < 0.05) increased memory retention. The best response was achieved with 400 mg/Kg of the extract. Also, results showed that sweet basil extract significantly (P < 0.05) increased memory retrieval and the best result was achieved with 400 mg/Kg too.It can be concluded that memory enhancing effects of green Ocimum basilicum is because of antioxidant activity of flavonoids, tannins and terpenoids.
  9 3,102 237
REVIEW ARTICLE
Pharmacological and therapeutic effects of Mentha Longifolia L. and its main constituent, menthol
Peyman Mikaili, Sina Mojaverrostami, Milad Moloudizargari, Shahin Aghajanshakeri
October-December 2013, 33(2):131-138
DOI:10.4103/0257-7941.139059  PMID:25284948
Mentha longifolia (wild mint) is a popular folk remedy. Some parts of this plant have been used in traditional medicine of Iran and other countries. Many studies have shown various pharmacological and therapeutic effects of the plant. Our aim in preparing this study was to review the traditional uses of M. longifolia together with the pharmacological and therapeutic effects of its entire extract and major compounds. Mentha longifolia is an herb with a wide range of pharmacological properties such as antimicrobial, gastrointestinal, and nervous system effects. Pulegone is the main compound of the plant responsible for most of its pharmacological effects followed by menthone, isomenthone, menthol, 1, 8-cineole, borneol, and piperitenone. Moreover, the plant may dose-dependently exert toxic effects in different systems of the body. Based on the review of various studies, it can be concluded that M. longifolia is a potential natural source for the development of new drugs. However, further studies are required to determine the precise quality and safety of the plant to be used by clinicians.
  9 3,109 176
ORIGINAL ARTICLES
Anti-inflammatory activity of roots of Cichorium intybus due to its inhibitory effect on various cytokines and antioxidant activity
Waseem Rizvi, Mohd. Fayazuddin, Syed Shariq, Ompal Singh, Shagufta Moin, Kafil Akhtar, Anil Kumar
July-September 2014, 34(1):44-49
DOI:10.4103/0257-7941.150780  PMID:25737610
Background: Cichorium intybus L. commonly known as chicory is one of the important medicinal plants commonly used in Ayurvedic system of medicine. It is commonly used for the treatment of diseases involving a khapa and pitta doshas. Traditionally, C. intybus is used for the treatment of inflammatory conditions, but there are only few in vitro studies reporting the anti-inflammatory activity of roots of chicory. Objective: Evaluation of anti-inflammatory activity of roots of chicory and mechanisms involved in it using in vivo models of inflammation. Materials and Methods: Albino Wistar rats of either sex weighing 150-200 g were used. Ethanolic and aqueous extracts of roots of chicory were prepared with the help of Soxhlet's apparatus. The anti-inflammatory activity was studied using carrageenan-induced paw edema method and cotton pellet granuloma method. Levels of cytokines such as tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), and IL-1 and activity of antioxidant enzymes such as catalase (CAT) and glutathione peroxidase (GPx) were estimated. Results: Chicory roots demonstrated significant dose-dependent decrease in paw edema in carrageenan-induced paw edema method. Chicory roots diminished the serum TNF-α, IL-6, and IL-1 levels. They also significantly attenuated the malonylaldehyde levels and increased the activities of CAT and GPx in paw tissue. Similarly, chicory roots demonstrated a significant decrease in granuloma formation in cotton pellet induced granuloma method. Conclusion: Chicory roots possess anti-inflammatory activity, and this might be due to the inhibition of various cytokines, antioxidant effects, and their free radical scavenging activity.
  8 2,931 110
Pharmacognostic study and development of quality control parameters for fruit, bark and leaf of Zanthoxylum armatum (Rutaceae)
Fiaz Alam, Qazi Najam Us Saqib
January-March 2015, 34(3):147-155
DOI:10.4103/0257-7941.157159  PMID:26120229
Context: Zanthoxylum armatum (Rutaceae) fruit, bark and leaves are used for various conditions of ailments in traditional systems of medicine since ancient times. Aims: This study is designed to lay down the various pharmacognostic and phytochemical standards which will be helpful to ensure the purity, safety, and efficacy of this medicinal plant. Materials and Methods: Various methods including macroscopic, microscopic, physicochemical, and phytochemical methods were applied to determine the diagnostic features for the identification and standardization of intact and powdered drug of Z. armatum leaf, fruit, and bark. Results: The shape, size, color, odor, surface characteristics were determined for the intact drug and powdered materials of leaf, bark and fruit of Z. armatum. Light and electron microscope images of cross-section of leaf and powdered microscopy revealed useful diagnostic features. Histochemical, phytochemical, physicochemical including fluorescence analysis of powdered drug proved useful to differentiate the powdered drug material. High performance liquid chromatography analysis showed the presence of important phytoconstituents such as gallic acid and rutin. Conclusion: The data generated from this study would be of help in the authentication of various parts of Z. armatum, an important constituent of various herbal drug formulations. The qualitative and quantitative microscopic features would prove useful for laying down pharmacopoeial standards. Morphology as well as various pharmacognostic aspects of different parts of the plant were studied and have been described here along with phytochemical, physicochemical studies, which will help in authentication and quality control.
  8 3,571 161
Effect of Calendula officinalis hydroalcoholic extract on passive avoidance learning and memory in streptozotocin-induced diabetic rats
Shirin Moradkhani, Iraj Salehi, Somayeh Abdolmaleki, Alireza Komaki
January-March 2015, 34(3):156-161
DOI:10.4103/0257-7941.157160  PMID:26120230
Background: Medicinal plants, owing to their different mechanisms such as antioxidants effects, may improve learning and memory impairments in diabetic rats. Calendula officinalis (CO), has a significant antioxidant activity. Aims: To examine the effect of hydroalcoholic extract of CO on passive avoidance learning (PAL) and memory in streptozotocin (STZ)-induced diabetic male rats. Settings and Design: A total of 32 adult male Wistar rats were randomly allocated to four groups: Control, diabetic, control + extract of CO and diabetic control + extract of CO groups with free access to regular rat diet. Subjects and Methods: Diabetes in diabetic rats was induced by single intraperitoneal injection of 60 mg/kg STZ. After confirmation of diabetes, oral administration of 300 mg/kg CO extract to extract-treated groups have been done. PAL was tested 8 weeks after onset of treatment, and blood glucose and body weight were measured in all groups at the beginning and end of the experiment. Statistical Analysis Used: The statistical analysis of data was performed by ANOVA followed by least significant difference post-hoc analysis. Results: Diabetes decreased learning and memory. Effect of CO extract in retention test (after 24 and 48 h) has been shown a significant decrease in step-through latency and increase in time spent in the dark compartment part. Also the extract partially improved hyperglycemia and reduced body weight. Conclusion: Taken together, CO extract can improve PAL and memory impairments in STZ-diabetic rats. This improvement may be due to its antioxidant, anticholinergic activities or its power to reduce hyperglycemia.
  8 2,842 67
In-vitro antioxidant and antibacterial activities of Xanthium strumarium L. extracts on methicillin-susceptible and methicillin-resistant Staphylococcus aureus
Javad Sharifi Rad, Seyedeh Mahsan Hoseini Alfatemi, Majid Sharifi Rad, Marcello Iriti
October-December 2013, 33(2):109-113
DOI:10.4103/0257-7941.139050  PMID:25284944
Background and Aims: The excessive and repeated use of antibiotics in medicine has led to the development of antibiotic-resistant microbial strains, including Staphylococcus aureus whose emergence of antibiotic-resistant strains has reduced the number of antibiotics available to treat clinical infections caused by this bacterium. In this study, antioxidant and antimicrobial activities of methanolic extract of Xanthium strumarium L. leaves were evaluated on methicillin-susceptible and methicillin-resistant Staphylococcus aureus (MRSA) spp. Materials and Methods: Antiradical and antioxidant activities X. strumarium L. leaf extract were evaluated based on its ability to scavenge the synthetic 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical and by the paired diene method, respectively, whereas the antimicrobial activity was assayed by the disc diffusion method. Statistical Analysis: Data were subjected to analysis of variance following an entirely random design to determine the least significant difference at P < 0.05 using SPSS v. 11.5. Results and Conclusions: The IC 50 values of the extract were 0.02 mg/mL and 0.09 mg/mL for the antioxidant and DPPH-scavenging capacity, respectively. X. strumarium extract affected both methicillin-sensitive Staphylococcus aureus and MRSA, though antibacterial activity was more effective on methicillin-susceptible S. aureus spp. The antibacterial and antioxidant activities exhibited by the methanol extract may justify the traditional use of this plant as a folk remedy worldwide.
  7 2,503 89
Evaluation of anthelmintic activity and in silico PASS assisted prediction of Cordia dichotoma (Forst.) root extract
Prasad G Jamkhande, Sonal R Barde
July-September 2014, 34(1):39-43
DOI:10.4103/0257-7941.150779  PMID:25737609
Background: Worm infection and associated complications are severe problems that afflict a large population worldwide. Failure of synthetic drugs in worm infections because of drug resistance has made alternative drug therapy desirable. Cordia dichotoma (Forst.) is an ethnomedicinal plant which is rich in several secondary metabolites. Traditionally, the plant has been claimed to have high medicinal properties including antimicrobial activity and cytotoxicity. Materials and Methods: The study begun with an aim to explore plant-based natural anthelmintic agents against Pheretima posthuma, an Indian earthworm. Methanol extract of the drug was obtained by successive soxhlet extraction. The extract was tested for different phytochemicals. Worms were exposed to 10 mg/ml, 25 mg/ml, 50 mg/ml, and 75 mg/ml concentrations of extract and standard drug, albendazole. A software-based tool, prediction of activity spectra for substances was used to estimate anthelmintic efficacy of plant metabolites. Result: The phytochemical analysis revealed presence of alkaloids, tannins, glycosides, saponins, flavonoids, and phenols. The extract showed dose-dependent effects, affecting worm motility, viability, and mortality. It was also found that the biological activity spectrum of the plant phytoconstituents such as octacosanol, lupeol, caffeic acid, and hentricontanol were >0.5 (probable activity > 0.5). Conclusion: The findings of the present work suggest that the extract of C. dichotoma significantly interferes with motility pattern of P. posthuma. The paralysis and mortality of P. posthuma might be due to the combined effects different phytoconstituents. The extract of C. dichotoma promises natural sources to control worm infection.
  7 2,688 117
REVIEW ARTICLE
Śodhana: An Ayurvedic process for detoxification and modification of therapeutic activities of poisonous medicinal plants
Santosh Kumar Maurya, Ankit Seth, Damiki Laloo, Narendra Kumar Singh, Dev Nath Singh Gautam, Anil Kumar Singh
April-June 2015, 34(4):188-197
DOI:10.4103/0257-7941.160862  PMID:26283803
Ayurveda involves the use of drugs obtained from plants, animals, and mineral origin. All the three sources of drugs can be divided under poisonous and nonpoisonous category. There are various crude drugs, which generally possess unwanted impurities and toxic substances, which can lead to harmful health problems. Many authors have reported that not all medicinal plants are safe to use since they can bear many toxic and harmful phytoconstituents in them. Śodhana (detoxification/purification) is the process, which involves the conversion of any poisonous drug into beneficial, nonpoisonous/nontoxic ones. Vatsanābha (Aconitum species), Semecarpus anacardium, Strychnos nux-vomica, Acorus calamus, Abrus precatorius etc., are some of the interesting examples of toxic plants, which are still used in the Indian system of medicine. Aconite, bhilawanols, strychnine, β-asarone, abrin are some of the toxic components present in these plants and are relatively toxic in nature. Śodhana process involves the purification as well as reduction in the levels of toxic principles which sometimes results in an enhanced therapeutic efficacy. The present review is designed to extensively discuss and understand the scientific basis of the alternative use of toxic plants as a medicine after their purification process.
  7 4,505 364
REVIEW ARTICLES
Psycho-neuro-endocrine-immune mechanisms of action of yoga in type II diabetes
Vijay Pratap Singh, Bidita Khandelwal, Namgyal T Sherpa
July-September 2015, 35(1):12-17
DOI:10.4103/0257-7941.165623  PMID:26600662
Yoga has been found to benefit all the components of health viz. physical, mental, social and spiritual well being by incorporating a wide variety of practices. Pathophysiology of Type II DM and co-morbidities in Type II DM has been correlated with stress mechanisms. Stress suppresses body's immune system and neuro-humoral actions thereby aff ecting normal psychological state. It would not be wrong to state that correlation of diabetes with stress, anxiety and other psychological factors are bidirectional and lead to diffi culty in understanding the interrelated mechanisms. Type II DM cannot be understood in isolation with psychological factors such as stress, anxiety and depression, neuro-endocrine and immunological factors. There is no review which tries to understand these mechanisms exclusively. The present literature review aims to understand interrelated Psycho-Neuro-Endocrine and Immunological mechanisms of action of Yoga in Type II Diabetes Mellitus. Published literature concerning mechanisms of action of Yoga in Type II DM emphasizing psycho-neuro-endocrine or immunological relations was retrieved from Pubmed using key words yoga, Type II diabetes mellitus, psychological, neural, endocrine, immune and mechanism of action. Those studies which explained the psycho-neuroendocrine and immune mechanisms of action of yoga were included and rest were excluded. Although primary aim of this study is to explain these mechanisms in Type II DM, some studies in non-diabetic population which had a similar pathway of stress mechanism was included because many insightful studies were available in that area. Search was conducted using terms yoga OR yogic AND diabetes OR diabetic IN title OR abstract for English articles. Of the 89 articles, we excluded non-English articles (22), editorials (20) and letters to editor(10). 37 studies were considered for this review. The postulated mechanism of action of yoga is through parasympathetic activation and the associated anti stress mechanism. It reduces perceived stress and HPA axis activation thereby improving overall metabolic and psychological profiles, increasing insulin sensitivity, and improving glucose tolerance and lipid metabolism. Yoga has positive effects on immune system of diabetics.–Overall, TypeII DM is influenced by psycho-neuro-endocrine and immune mechanisms where Yoga has important positive role in combating stressors and improving these systems to regain health.
  7 3,738 171
Critical review of Ayurvedic Varṇya herbs and their tyrosinase inhibition effect
Khemchand Sharma, Namrata Joshi, Chinky Goyal
July-September 2015, 35(1):18-25
DOI:10.4103/0257-7941.165627  PMID:26600663
Introduction: The aspiration for light skin (fair complexion) is becoming pronounced in a greater number of people in the present times with natural products being more in demand than their synthetic counterparts. Research in the area of skin-lightening agents is an expanding field with the knowledge being updated regularly. In Ayurveda, varṇya, raktaprasādana, tvacya are few terms specifying skin lightening with respect to its modern counterpart i.e., Tyrosinase inhibition, the most commonly reported method of skin lightening. Aim: The present review is undertaken for screening twenty herbs from Varṇya Mahākaṣāya, Lodhrādi varṇya gaṇa, Elādi varṇa prasādana gaṇa and few varṇya formulations to evaluate their probable modes of action through which the skin lightening is effected as per both Ayurveda and biomedical concepts. Materials and Methods: Critical review of herbs to show varṇya property is compiled from various Ayurvedic texts as well as from multiple articles on the internet to justify their skin lightening property on the basis of data collected. Result and Conclusion: All the twenty herbs reviewed are found to act as varṇya directly (citation as varṇya) or indirectly (alleviation of pitta and rakta) as per Ayurveda and to interfere in melanogenesis pathway through tyrosinase inhibition as per biomedicine. This shows their potential to act as good skin whitening agents. Śuṇṭhi being a part of many varṇya formulations, is the only herb among all reviewed in the present study found to exhibit tyrosinase inhibition without any Ayurvedic citation of varṇya property.
  7 4,061 222
EDITORIAL
Papaya, dengue fever and Ayurveda
P Ram Manohar
January-March 2013, 32(3):131-133
DOI:10.4103/0257-7941.122994  PMID:24501439
  6 3,822 491
ORIGINAL ARTICLES
Bryophyllum pinnatum leaf extracts prevent formation of renal calculi in lithiatic rats
Mahendra Yadav, Vijay D Gulkari, Manish M Wanjari
October-December 2016, 36(2):90-97
DOI:10.4103/asl.ASL_90_16  PMID:28446830
Background: Bryophyllum pinnatum, commonly known as Pattharcaṭṭa, is used traditionally in ethnomedicinal practices for the treatment of kidney stone and urinary insufficiency. Aim: The present study evaluated the effect of Bryophyllum pinnatum on ethylene glycol (EG)-induced renal calculi in rats. Materials and Methods: Renal calculi were induced in rats by administration of 0.75% EG in drinking water and co-treated orally with standard drug, Cystone (750 mg/kg), or alcoholic and hydro-alcoholic extracts in doses of 100, 200 and 400 mg/kg for 28 days. Weekly body weights were recorded. On day 29, urolithiasis was confirmed by assessing the urinary parameters (urine volume, pH, uric acid, calcium, phosphorus, oxalate, magnesium and creatinine clearance), serum biochemical parameters (creatinine, uric acid, urea, calcium, phosphorus and magnesium), oxidative stress parameters and histology of kidney. Results: Treatment with extracts attenuated the EG-induced decrease in body weight and elevation in urinary parameters (uric acid, calcium, phosphorus and oxalate) and serum biochemical parameters (creatinine, uric acid, urea, calcium, phosphorus and magnesium). Extract treatment also reversed EG-induced decrease in urine volume, pH, magnesium and creatinine clearance, oxidative and histological damages in kidneys. Results were comparable to standard drug, Cystone. Results indicated that EG administration caused renal calculi formation which is prevented by treatment with extracts. The observed antilithiatic effect may be attributed to the presence of high content of phenolics, flavonoids and saponins in the extracts. Conclusion: Bryophyllum pinnatum leaves showed preventive effect against renal calculi formation and validates its ethnomedicinal use in urinary disorders. It further supports its therapeutic potential for the treatment of urinary calculi.
  6 3,730 153
Ethnozoology of the Karbis of Assam, India: Use of ichthyofauna in traditional health-care practices
Valentina Teronpi, HT Singh, AK Tamuli, Robindra Teron
October-December 2012, 32(2):99-103
DOI:10.4103/0257-7941.118547  PMID:24167335
Background: Traditional or folk medicine is still prevalent among the Karbis as means of primary health-care. Traditional medicine is not only a source of healing, but the practice is also an important part of their religion and culture. Aim: The aim of the present study is to discuss the use of ichthyofauna in traditional health-care practices among the Karbis and other ethnic tribes of Karbi Anglong district, Assam. Setting and Design: Field study was undertaken from March 2011 to June 2012. A total of 75 informants were selected from 27 villages and the selection was based on their recognition as having sound knowledge relating to health-care practices. Materials and Methods: Information was collected following both unstructured and structured interview methods, group discussions and personal observation. Fish used in health-care practices were collected with the help of local guides and identified using available literatures. Results: The present study has recorded use of 14 species belonging 7 families in the treatment of 25 disease conditions. Traditional health-care practices of the Karbis include both local and oral applications and rituals to cure diseases. Use of fish to cure mental depression like symptoms locally referred as nihu kachingtung is prevalent until today. Studies among the Dimasa and Thadou tribes also revealed the use of fish in traditional medicine as therapies against different ailments, but do not use fish in rituals. Conclusion: Study on fish-based zootherapy could be a viable option for discovery of new compounds with therapeutic potentials. However, the attitude of the present generation towards traditional medicine as being unscientific and acculturation are the main causes of decline of such practice in the Karbis. Destructive fishing practices by poisoning water bodies with synthetic chemicals pose serious threats to aquatic fauna in the hill streams.
  6 3,074 189
REVIEW ARTICLE
A review on phyto‑pharmacological potentials of Euphorbia thymifolia L.
Prashant Y Mali, Shital S Panchal
January-March 2013, 32(3):165-172
DOI:10.4103/0257-7941.123001  PMID:24501446
Euphorbia thymifolia L. (Euphorbiaceae) is a small branched, hispidly pubescent, prostate annual herb, commonly known as laghududhika or choti-dudhi. The leaves, seeds and fresh juice of whole plant are used in worm infections, as stimulant, astringent. It is also used in bowel complaints and in many more diseases therapeutically. The present work is an extensive review of published literature concerning phytochemical and pharmacological potential of E. thymifolia. Data was searched and designed using various review modalities manually and using electronic search engines with reference to all aspects of E. thymifolia and was arranged chronologically. Complete information of the plant has been collected from the various books and journals since the last 32 years, internet databases, etc., were searched. Compiled data reflects the safety and therapeutic efficacy of the plant. This will be helpful for researchers to focus on the priority areas of research yet to be explored and in scientific use of the plant for its wide variety of traditional therapeutic claims and also as to find out new chemical entities responsible for its claimed traditional activities.
  6 8,565 395
REVIEW ARTICLES
Rhazes' concepts and manuscripts on nutrition in treatment and health care
Farzad Nikaein, Arman Zargaran, Alireza Mehdizadeh
April-June 2012, 31(4):160-163
DOI:10.4103/0257-7941.107357  PMID:23661862
The use of nutrition in medical practice has a long history dating back to 6000 years. The great Persian chemist, physician, and philosopher, Rhazes (865-925 AD), wrote over 200 books in different branches of science. Some of his work drew attention to the notion that nutrition is an important part of treating diseases and health care procedures. Rhazes formulated highly developed concepts of nutrition and wrote several special books about food and diet such as manfe' al aghzie va mazareha (Benefits of Food and its Harmfulness), teb al moluki (Medicine for Kings), and Ata'me al marza (Food for Patients). His writing included detailed guidance about eating fruit ma iaghdam men al favakeh va al aghzieh va ma yoakhar (Fruit Before or After Meal), and other food types keifiat al eghteza (Temperament and Quality of Foods) and al aghziat al mokhtasareh (Brief Facts about Food). Considering the time that these books were written, they have had a great influence on approaches to nutrition in the history of medicine, so Rhazes can be considered as a pioneer in the scientific field of nutrition.
  6 3,595 284
ORIGINAL ARTICLES
Pharmacological evaluation of extracts of Hedychium spicatum (Ham-ex-Smith) rhizome
Shivani Ghildiyal, Manish K Gautam, Vinod K Joshi, Raj K Goel
January-March 2012, 31(3):117-122
DOI:10.4103/0257-7941.103189  PMID:23284217
Hedychium spicatum (Ham-ex-Smith), known as Shati in Ayurvedic classics, is documented for the treatment of cough, hiccough, fever and asthma. The present study includes the evaluation of aqueous and ethanolic extracts of the dried rhizome of H. spicatum for anti-histaminic and ulcer-protective activities in guinea pig (GP), anti-inflammatory and analgesic activities in rat and acute toxicity in mouse. The extracts were administered orally, daily as suspension, in 1% carboxymethyl cellulose either for 7 days in GP studies or 60 min before or just before experiment in rats and mice. An initial dose-dependent anti-histaminic action of both the extracts (100, 200 and 400 mg/ kg) was performed against histamine-induced bronchospasm in GPs. The 200 mg/ kg dose of aqueous and ethanolic extracts was selected both in GP and rat for further studies. GPs treated with aqueous and ethanolic extracts showed gastric ulcer protection against histamine-induced gastric ulcer compared with the control group. Both the extracts also showed an anti-inflammatory effect against carrageenan-induced paw edema in rats from 1 h onwards, and this was maximum at 3 h. Analgesic effect was determined by using hot plate and tail flick tests in rats, and both the extracts at 200 mg/kg showed a significant increase in the latent period from 30 min onwards till 120 min of their study period. Both the extracts did not show any toxic effect like increased motor activity, salivation, clonic convulsion, coma and death in mice even at the 2000 mg/kg dose (nearly 10 times of the optimal effective dose), indicating the safety of the extracts. The result confirms the indigenous use of this plant in respiratory disorders.
  5 2,680 297
* Source: CrossRef
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