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Studies on the Anti-inflammatory Effects of Drymaria cordata Willd
Pulok K. Mukherjee,Kakali Mukherjee,S. Bhattacharya,M. Pal,B. p. Saha 한국생약학회 1998 Natural Product Sciences Vol.4 No.2
In folklore medicine Drymaria cordata Willd (Family-Caryophyllaceae) is reported to have laxative and anti-febrile properties along with anti-inflammatory activities. Sikkimis used this plant to treat all these ailments. The anti-inflammatory effect of the methanol extract of D. cordata was investigated against carrageenin, histamine, serotonin, dextran and PGE₁ induced rat hind paw oedema. It exhibited significant anti-inflammatory activity against all these phlogestic agents except PGE₁ in the order of carrageenin $gt; serotonin $gt; histamine. All these effects were compared with standard drug phenylbutazone in both the acute and chronic experimental models in albino rats.
Pulok K. Mukherjee,B. Suresh 한국생약학회 2000 Natural Product Sciences Vol.6 No.2
The wound healing potential of the methanol extract of Hypericum mysorense Wight and Arn. Leaves (Family: Hypericaceae) was evaluated on different experimental models of wounds in rats. The methanol extract of leaves of Hypericum mysorense (HMM), in the form of ointment in two different concentrations (5% and 10% w/w ointment of aerial part extract in simple ointment base) was evaluated for wound healing potential in excision wound model and incision wound model in rats. Both the concentrations of the methanol extract ointment showed significant responses in both the wound types tested when compared with the control group. The effect produced by the extract ointment, in terms of wound contracting ability, wound closure time, regeneration of tissues at wound site, tensile strength of the wound and histopathological characteristics were comparable to those of a standard drug Nitrofurazone ointment.
Pulok K. Mukherjee,T. K. Gopal,T. subburaju,S. P. Dhanbal,B. Duraiswamy,K. Elango,B. Suresh 한국생약학회 1998 Natural Product Sciences Vol.4 No.4
To evaluate the anti-diarrheal potential of the leaves of Bauhinia purpurea Linn., investigations were performed on different animal models e.g. castor oil induced diarrhea in rats and gastrointestinal motility test by using charcoal meal. In both the models the ethanolic extract of the leaves showed significant activity when compared to control group. The group treated with standard anti-diarrheal agent also showed significant activity comparing with control. Thus this study establishes the efficacy of Bauhinia purpurea Linn. leaves as an anti-diarrheal as claimed in folklore.
Hypericum source of natural antimicrobials
Mukherjee, Pulok K.,Wahile, Atul,Ahamed, KFH Nazeer,Rajan, S. Kyung Hee Oriental Medicine Research Center 2003 Oriental pharmacy and experimental medicine Vol.3 No.3
Plants of the genus Hypericum (Family - Hypericaceae) are herbs, shrubs or small trees and are distributed chiefly in the temperate regions of the world. About 400 different species of Hypericum are available throughout the globe and 20 species occur in India, including a few cultivated in gardens. Almost all plants of the genus Hypericum are widely used in folk medicine. Several potent phytoconstituents from different Hypericum species have led to the isolation of antibacterial, antifungal and cytotoxic compounds. With the development of resistance and cross resistance with different microorganisms and the evolution of so many deadly diseases the screening and evaluation of the phytoconstituents so much so the development of varied phytoconstituents for the drug development for these deadly diseases is utmost essential in every aspects. The present review on the antimicrobial use of different Hypericum reports the findings from and extensive literature search on the Hypericum species around the globe that have been assessed for antimicrobial and antiviral activity. An attempt has been made through this review to summarize the information in this aspect in order to highlight the promising species of this genus which are worthy for further investigation as leads for drug development. Over 31 different Hypericum species have been reported to possess such activities with their varied number of phytoconstituents. Sixteen different constituents of six different classes of phytoconstituents have been reported to be present in different varieties of Hypericum, which may be considered responsible for this activity.
Studies on in vivo Wound Healing Activity of Cassia fistula Linn . Leaves (Leguminosae) in Rats
T. Bhakta,Pulok K. Mukherjee,Kakali Mukherjee,M. Pal,B. p. Saha 한국생약학회 1998 Natural Product Sciences Vol.4 No.2
Cassia fistula commonly known as Sundali was selected to evaluate its wound healing potentials based on traditional use and literature references. Methanol extract of C. fistula leaves were examined for its wound healing property in the form of an ointment in two types of wound models in rats : i) Excision wound model and ii) Incision wound model. The ointment of the leaf extract of two different concentrations (5% and 10% w/w ointment of leaves extract in simple ointment base) responded significantly in both models of wounds tested. The results were also comparable to that of standard drug, nitrofurazone in terms of wound contraction ability, epithelisation period, tensile strength and regeneration of tissue at wound area.
ACE inhibiton activity of standardized extract and fractions of Terminalia bellerica
Chaudhary, Sushil Kumar,Mukherjee, Pulok K.,Nema, Neelesh Kumar,Bhadra, Santanu,Saha, B.P. 경희한의학연구센터 2012 Oriental Pharmacy and Experimental Medicine Vol.12 No.4
The fruit of Terminalia bellerica L. (Combretaceae) is an important ingredient of 'Triphala', which is a popular Ayurvedic formulation traditionally used to treat hypertension, to reduce cardiac depression and to decreases the risk factors associated with the heart. This study aimed to investigate the angiotensin converting enzyme (ACE) inhibitory activity of T. bellerica. Standardized hydro alcoholic extract (TBHA) and its various subfractions including hexane fraction (TBH), ethyl acetate fraction (TBE), n-butanol fraction (TBB) and aqueous fraction (TBW) at the concentration of 10-1000 ${\mu}g/ml$ together with standard Captopril 3.6 ng/ml was compared. TBE fraction was undertaken to isolate the gallic acid. Further quantification of gallic acid in the crude extract and fractions was made with HPLC. Among all fractions the activity was found to be maximum in TBE with an $IC_{50}=338.54{\pm}18.34{\mu}g/ml$ while crude TBHA and other fractions TBB, TBH and TBW were found less potent. Isolated gallic acid from the TBE fraction shown ACE inhibitory activity with $IC_{50}$ of $257.29{\pm}9.39{\mu}g/ml$. TBE found to contain maximum amount of gallic acid ($71.05{\pm}6.274$ mg/g of extract). The presence of gallic acid along with other metabolites in the extract and fractions might be responsible for the ACE inhibitory activity. T. bellerica extract/fractions suggested its suitability as a functional food for pharmaceutical purpose to be used against hypertension and other related diseases.
Antidiarrheal Evaluation of Ficus racemosa Linn. Leaf Extract
Mandal, Subhash C.,Mukherjee, Pulok K.,Saha, Kakali,Pal, M.,Saha, B.P. The Korean Society of Pharmacognosy 1997 Natural Product Sciences Vol.3 No.2
A study was undertaken to evaluate the effect of petroleum ether extract of leaves of Ficus racemosa Linn. for its antidiarrheal potential against several experimental models of diarrhea in rats. Ficus racemosa leaves extract (FRLE) treated animals showed significant inhibitory activity against castor oil induced diarrhea and inhibited significantly $PGE_2$ induced enteropooling in rats. It also showed significant reduction in gastrointestinal motility following charcoal meal in rats. The results obtained establish the efficacy of FRLE as an antidiarrheal agent.
Hypoglycemic Activity of Ficus racemosa L. (Moraceae) Leaves in Streptozotocin-induced Diabetic Rats
Mandal, Subhash C.,Mukherjee, Pulok K.,Saha, Kakali,Das, J.,Pal, M.,Saha, B.P. The Korean Society of Pharmacognosy 1997 Natural Product Sciences Vol.3 No.1
The hypoglycemic effect of the extract of Ficus racemosa leaves was studied on streptozotocin-induced diabetic rats. Petroleum ether $(60-80^{\circ}C)$ extract of the plant obtained by soxhlet extraction from coarsely pulverised leaves was used. In the $LD_{50}$ determination of the extract no abnormalities were observed at the dose range of 3 g/kg (p.o.) of the extract. The extract (200 mg/kg and 400 mg/kg orally) caused a reduction of blood glucose levels in streptozotocin-induced diabetic rats by 28.9% (P<0.00l) and 34.6% (P<0.001) respectively at the end of 9 days. The results. of this study indicate that the petroleum ether $(60-80^{\circ}C)$ extract of the leaves possesses significant hypoglycemic activity in hyperglycemic animals compared with glybenclamide as standard drug.
Antiinflammatory Evaluation of Leucas lavandulaefolia Rees. Extract
Saha, Kakali,Mukherjee, Pulok K.,Das, J.,Mandal, Subhash C.,Saha, B.P.,Pal, M. The Korean Society of Pharmacognosy 1996 Natural Product Sciences Vol.2 No.2
The antiinflammatory activity of the methanol extract of Leucas lavandulaefolia Rees was evaluated on different experimental models of inflammation in rats. The extract has been found to possess significant, inhibitory activity against carrageenin, histamine, serotonin, and dextran induced hind paw oedema in rats. The effect produced by extract was comparable to that of phenylbutazone and a prototype, nonsteroidal antiinflammatory agent.
Therapeutic potentials and untoward effects of Piper betle and its quid
Rai, Sujay,Mal, Mainak,Wahile, Atul,Mukherjee, Pulok K. Kyung Hee Oriental Medicine Research Center 2005 Oriental pharmacy and experimental medicine Vol.5 No.4
Piper betle Linn. (PB), which belongs to the family Piperaceae, is used traditionally in many Asian countries for treatment of a variety of aliments. It has also been used in Ayurveda and Unani systems of medicine. PB leaves are also used as a masticatory in the form of quid. The basic preparation of PB leaves for chewing purposes (PB quid) is known as Paan in India. It is recommended in ancient scripture of Ayurveda and is closely associated with Indian culture. PB is reported to have several therapeutic potentials as well as to produce some untoward effects. The review deals with phytoconstituents present, therapeutic potentials and untoward effects of PB.