1.Hepatoprotective and immunomodulatory properties of aqueous extract of Curcuma longa in carbon tetra chloride intoxicated Swiss albino mice
Sengupta Mahuya ; Sharma Dutta Gauri ; Chakraborty Biswajit
Asian Pacific Journal of Tropical Biomedicine 2011;(3):193-199
Objective: To evaluate the hepatoprotective and immunotherapeutic effects of aqueous extract of turmeric rhizome in CCl4 intoxicated Swiss albino mice. Methods: First group of mice (n=5) received CCl4 treatment at a dose of 0.5 mL/kg bw (i.p.) for 7 days. Second group was fed orally the aqueous extract of turmeric at a dose of 50 mg/kg bw for 15 days. The third group was given both the turmeric extract (for 15 days, orally) and CCl4 (for last 7 days, i.p.). The fourth group was kept as a control. To study the liver function, the transaminase enzymes (SGOT and SGPT) and bilirubin level were measured in the serum of respective groups. For assaying the immunotherapeutic action of Curcuma longa (C. longa), non specific host response parameters like morphological alteration, phagocytosis, nitric oxide release, myeloperoxidase release and intracellular killing capacity of peritoneal macrophages were studied from the respective groups. Results: The result of present study suggested that CCl4 administration increased the level of SGOT and SGPT and bilirubin level in serum. However, the aqueous extract of turmeric reduced the level of SGOT, SGPT and bilirubin in CCl4 intoxicated mice. Apart from damaging the liver system, CCl4 also reduced non specific host response parameters like morphological alteration, phagocytosis, nitric oxide release, myeloperoxidase release and intracellular killing capacity of peritoneal macrophages. Administration of aqueous extract of C. longa offered significant protection from these damaging actions of CCl4 on the non specific host response in the peritoneal macrophages of CCl4 intoxicated mice. Conclusions: In conclusion, the present study suggests that C. longa has immunotherapeutic properties along with its ability to ameliorate hepatotoxicity.
2.Control of human filarial vector, Culex quinquefasciatus Say 1823 (Diptera:Culicidae) through bioactive fraction of Cayratia trifolia leaf
Sumanta CHAKRABORTY ; Someshwar SINGHA ; Kuntal BHATTACHARYA ; Goutam CHANDRA
Asian Pacific Journal of Tropical Biomedicine 2013;(12):980-984
Objective:To investigate the mosquito larvicidal activity of Cayratia trifolia (L.) Domin (Vitaceae:Vitales) (C. trifolia) which is distributed in many parts of India with medicinal properties as vector control is facing threat due to the emergence of resistance to synthetic insecticides.
Methods:Young and mature leaves of C. trifolia were investigated for larvicidal activity against 3rd instars larvae of Culex quinquefasciatus in different seasons throughout the year. The active fractions were extracted using six different solvents in a non-polar to polar fashion viz petroleum-ether, benzene, chloroform:methanol (1:1 v/v), acetone, absolute alcohol and distilled water. Dose dependent mortality was recorded against each solvent extract. Determination of LD50 and LD90 were executed through log-probit analysis using the most bioactive fraction. The fluctuations in mortality were statistically co-related through ANOVA analyses concerning different seasons and types of leaves as random variables. Justification of larvicidal activity was established through student’s t-test. Costing effects were evaluated on the non-target water fauna under laboratory conditions. Thin layer chromatographic techniques were performed for phytochemical analysis and categorization of chemical personality of the active fractions using the most effective solvent extract following standard methods.
Results:Significant variations in mortality rate were noted with respect to the type of leaves (mature and senescence), concentration of leaf extract and between seasons. The water extract among all the solvent extracts was found to induce cent percent mortality at 50 mg/L in test mosquito species within 24 h with a LD50 and LD90 value of 10.70 mg/L and 27.64 mg/L respectively. No significant mortality was recorded in non-target water population. Chromatographic analyses of the water extract revealed the presence of steroids, triterpene glycosides, essential oil, phenolics and diterpenes as secondary phytochemicals.
Conclusions:Water extract of C. trifolia leaf promised as a cost effective and potent larvicidal agent against Culex quinquefasciatus.
3.Antiinflammatory, antinociceptive and antioxidant activities of Phyllanthus acidus L. extracts
Raja CHAKRABORTY ; Biplab DE ; Nayakanti DEVANNA ; Saikat SEN
Asian Pacific Journal of Tropical Biomedicine 2012;(z2):953-961
Objective: To evaluate analgesic, anti-inflammatory and in vitro antioxidant potential and determine total phenolic, total flavonoid content of leaves extracts of Phyllanthus acidus, a folk medicinal plant of India. Methods: Anti-inflammatory activity was evaluated using carrageenan induced paw oedema, cotton pellet induced granuloma, membrane stabilizing activity method. Analgesic activity of the extracts was estimated against acetic acid induced writhing, tail immersion method, formalin test. Free radical scavenging and antioxidant potential of the extracts of Phyllanthus acidus leaves was performed using several in vitro and ex vivo assay models. Total phenolic and total flavonoid contents of the extracts were determined using standard chemical methods. Results: The extracts exhibited significant anti-inflammatory and analgesic activities at dose dependent manner. Methanol extract at a dose of 500 mg/kg showed superior activity which was comparable with the standard drugs. Ethyl acetate extract showed moderate activity while petroleum ether extract showed least activity. Total phenolic and total flavonoid content in methanol extract were 73.08±0.682 mg GAE/g and 61.28±0.062 mg QE/g respectively. The extracts possess significant antioxidant activity, methanol extract showed highest IC50 value. The contents of flavonoids and phenolic compounds could be correlated with the antioxidant, analgesic and anti-inflammatory activities observed for Phyllanthus acidus leaves. Conclusion:Our findings suggest that Phyllanthus acidus contains potential antioxidant, analgesic and anti-inflammatory compounds which could be tested as drug candidates against oxidative stress, pain and inflammation related pathological diseases.
4.Morphological study of the attachment of sternocleidomastoid muscle.
Anubha SAHA ; Shyamash MANDAL ; Sandip CHAKRABORTY ; Manimay BANDYOPADHYAY
Singapore medical journal 2014;55(1):45-47
INTRODUCTIONThe sternocleidomastoid (SCM) muscle is a major muscle of the neck. Classically, this muscle is attached below the sternum and clavicle, although the mode of attachment might vary. As the SCM is related to numerous important neurovascular structures, its variable anatomy is clinically relevant, particularly for neck surgeries. A cadaveric study was performed to establish the variations present in the mode of attachment of the SCM muscle in an Indian population.
METHODSWe studied the variations in the attachment of the SCM muscle during the dissection of 18 cadavers for undergraduate teaching in two medical colleges in West Bengal, India.
RESULTSVariations in the attachment of the SCM muscle were found in 5 (27.8%) specimens. Of these five specimens, three had unilateral variations and two had bilateral variations. In each specimen, the modes of presentation of the SCM and its fusion with the major bulk were also different.
CONCLUSIONIn this study, we found variations in the attachment of the SCM muscle in more than a quarter of the specimens dissected. Surgeons should bear in mind such variations when performing neck surgeries.
Cadaver ; Clavicle ; anatomy & histology ; Dissection ; Female ; Humans ; India ; Male ; Neck ; anatomy & histology ; Neck Muscles ; anatomy & histology ; Sternum ; anatomy & histology
5.Biocompatibility of folate-modified chitosan nanoparticles
Chakraborty Prasad Subhankari ; Sahu Kumar Sumanta ; Pramanik Panchanan ; Roy Somenath
Asian Pacific Journal of Tropical Biomedicine 2012;(3):215-219
Objective: To evaluate the acute toxicity of carboxymethyl chitosan-2, 2’ ethylenedioxy bis-ethylamine-folate (CMC-EDBE-FA) and as well as possible effect on microbial growth and in vitro cell cyto-toxicity. Methods: CMC-EDBE-FA was prepared on basis of carboxymethyl chitosan tagged with folic acid by covalently linkage through 2, 2’ ethylenedioxy bis-ethylamine. In vivo acute toxicity, in vitro cyto-toxicity and antimicrobial activity of CMC-EDBE-FA nanoparticle were determined. Results: Vancomycin exhibited the antibacterial activity against vancomycin sensitive Staphylococcus aureus, but CMC-EDBE-FA nanoparticle did not give any antibacterial activity as evidenced by minimal inhibitory concentration (MIC), minimal bactericidal concentration (MBC), disc agar diffusion (DAD) and killing kinetic assay. Further, the CMC-EDBE-FA nanoparticle showed no signs of in vivo acute toxicity up to a dose level of 1000 mg/kg p.o., and as well as in vitro cyto-toxicity up to 250 μg/mL. Conclusions: These findings suggest that CMC-EDBE-FA nanoparticle is expected to be safe for biomedical applications.
6.Diffuse idiopathic skeletal hyperostosis: A case report
SS Anand ; G Das ; DP Chakraborty ; SP Saha ; P Tripathi
Neurology Asia 2012;17(4):365-368
Diffuse idiopathic skeletal hyperostosis is a disease of old age, in which there is bony proliferation of
spine in ventral and lateral aspects of vertebral body. A 80-years-old male presented to us with features
of low back pain radiating along the right lower limb in the posterolateral aspect. After examination
and investigations, he was found to have metabolic syndrome, degenerative lumbar disc disease, and
his X-Ray and MRI showed diffuse thickening of lumbar vertebrae from L2-S1. This suggested that
the patient had diffuse idiopathic skeletal hyperostosis with extraspinal manifestations which coexisted
with lumbar degenerative disc disease. This case shows that both diffuse idiopathic skeletal hyperostosis
and lumbar degenerative disc disease can coexist. Diffuse idiopathic skeletal hyperostosis should also
be kept as a differential diagnosis in chronic low back pain in old age.
7.Dissipation of pencycuron in rice plant
R. PAL ; K. CHAKRABARTI ; A. CHAKRABORTY ; A. CHOWDHURY
Journal of Zhejiang University. Science. B 2005;6(8):756-758
Pencycuron is a non-systemic protective fungicide for controlling sheath blight of rice. However, information on the fate of pencycuron in rice plant is lacking. The degradation of pencycuron in waterlogged tropic rice field was investigated.Pencycuron was applied at recommended field dose (187.5 g a.i./ha) and double recommended dose to cropped plots for three consecutive years. Pencycuron was rapidly degraded in rice plant at all doses of pencycuron application with first order half-lives of 1.57~2.77 d. The study revealed that pencycuron is safe from the human and environmental contamination point of view.
8.Herpes Labialis-Induced Erythema Multiforme along Blaschko's Lines.
Nilendu SARMA ; Sayantani CHAKRABORTY
Annals of Dermatology 2015;27(1):97-98
No abstract available.
Erythema Multiforme*
9.Phytochemical profiling of Artocarpus lakoocha Roxb. leaf methanol extract and its antioxidant, antimicrobial and antioxidative activities
Bhattacharya EKTA ; Dutta RAJASHREE ; Chakraborty SWATI ; Biswas Mandal SUPARNA
Asian Pacific Journal of Tropical Biomedicine 2019;9(11):484-492
Objective: To explore the phytochemical profile of Artocarpus lakoocha Roxb. leaves both qualitatively and quantitatively, and validate its role as a potent antioxidant and antimicrobial agent. Methods: Extraction and isolation of different compounds were done from the leaves of Artocarpus lakoocha based on solvent fractionation method. Subsequently, quantitative and qualitative phytochemical profiling along with antioxidant, antimicrobial and antioxidative activities were tested following standard protocols. Results: Among the five fractions, methanol fraction of Artocarpus lakoocha exhibited higher content of phytochemical compounds [phenols = (3175.21依290.43) mg GAE/g dry extract, flavonoids = (1173.15依47.52) mg QE/g dry extract and tannins = (923.53依95.21) mg TAE/g dry extract] as compared to other fractions. The methanol fraction showed the highest antioxidant activity in DPPH and ABTS radical scavenging assays with IC50 of (111.98依34.20)μg/mL and (138.26依0.66) μg/mL, respectively, and the best reduction potential with a value of (316.81依2.96) mg QE/g dry extract in reducing power assay. There was significant correlation between the amount of phytochemicals and antioxidant activities. Moreover, the extract successfully protected Lambda phage DNA from damage at 5 and 6 mg/mL concentration and exhibited substantial bactericidal as well as fungicidal activity. The GC-MS analysis of methanol fraction of Artocarpus lakoocha revealed diethyl phthalate as the main phytochemical compound, along with 3,4-dihydroxymandelic acid, 9-octyl eicosane and 7,8-didehydro-3-methoxy-17-methyl-6-methylene morphinan. Conclusions: The methanol fraction of Artocarpus lakoocha could be used as a potent antioxidant and antimicrobial agent for sustainable agriculture and pharmaceutical purposes.
10.Hepatoprotective and immunomodulatory properties of aqueous extract of Curcuma longa in carbon tetra chloride intoxicated Swiss albino mice.
Mahuya SENGUPTA ; Gauri Dutta SHARMA ; Biswajit CHAKRABORTY
Asian Pacific Journal of Tropical Biomedicine 2011;1(3):193-199
OBJECTIVETo evaluate the hepatoprotective and immunotherapeutic effects of aqueous extract of turmeric rhizome in CCl4 intoxicated Swiss albino mice.
METHODSFirst group of mice (n=5) received CCl4 treatment at a dose of 0.5 mL/kg bw (i.p.) for 7 days. Second group was fed orally the aqueous extract of turmeric at a dose of 50 mg/kg bw for 15 days. The third group was given both the turmeric extract (for 15 days, orally) and CCl4 (for last 7 days, i.p.). The fourth group was kept as a control. To study the liver function, the transaminase enzymes (SGOT and SGPT) and bilirubin level were measured in the serum of respective groups. For assaying the immunotherapeutic action of Curcuma longa (C. longa), non specific host response parameters like morphological alteration, phagocytosis, nitric oxide release, myeloperoxidase release and intracellular killing capacity of peritoneal macrophages were studied from the respective groups.
RESULTSThe result of present study suggested that CCl4 administration increased the level of SGOT and SGPT and bilirubin level in serum. However, the aqueous extract of turmeric reduced the level of SGOT, SGPT and bilirubin in CCl4 intoxicated mice. Apart from damaging the liver system, CCl4 also reduced non specific host response parameters like morphological alteration, phagocytosis, nitric oxide release, myeloperoxidase release and intracellular killing capacity of peritoneal macrophages. Administration of aqueous extract of C. longa offered significant protection from these damaging actions of CCl4 on the non specific host response in the peritoneal macrophages of CCl4 intoxicated mice.
CONCLUSIONSIn conclusion, the present study suggests that C. longa has immunotherapeutic properties along with its ability to ameliorate hepatotoxicity.
Animals ; Aspartate Aminotransferases ; blood ; Bilirubin ; blood ; Carbon Tetrachloride ; toxicity ; Cell Adhesion ; drug effects ; immunology ; Curcuma ; chemistry ; Cytotoxicity, Immunologic ; drug effects ; Immunologic Factors ; pharmacology ; Liver ; drug effects ; metabolism ; pathology ; Macrophages, Peritoneal ; drug effects ; immunology ; metabolism ; pathology ; Male ; Mice ; Nitric Oxide ; metabolism ; Peroxidase ; metabolism ; Plant Extracts ; pharmacology ; Protective Agents ; pharmacology