Cyperus scariosus Chloroform Fraction Inhibits T cell Responses in Balb/C Mice

Purpose: To investigate the T cell inhibition potential of 50% ethanol extract of Cyperus scariosus (CS)and its bioactive chloroform fraction (CSC).Methods: The preliminary screening of the extract was carried out by humoral antibody response anddelayed-type hypersensitivity models employing sheep red blood cells (SRBC) as the antigen. Further,the extract was studied by skin allograft rejection test, and phagocytosis - in vitro and ex vivo - by C.albicans method and carbon clearance test, respectively. The extract was fractionated with chloroform,n-butanol and water, and then used to investigate the T-cell specific immunosuppressive potential ofthese fractions by flow cytometry.Results: On p.o. administration, CS inhibited both humoral and cell-mediated immune responsessignificantly (p < 0.01) by suppressing primary (26.8 %) and secondary (29.7 %) antibody titres, andalso inhibited cell-mediated delayed type hypersensitivity (DTH) immune response (45.9 %) at 600mg/kg dose, phagocytosis - both in vitro (37.4 %) and ex vivo (37.8 %) - and delayed the graft rejectiontime (45.8%), thus confirming marked immunosuppression. Out of the three isolated fractions, only thechloroform fraction significantly (p < 0.01) suppressed CD8+/ CD4+ T cell surface markers (14.0/25.3%) and intra-cellular Th1 cytokines, viz, IL-2 (34.4 %), and IFN-&gamma; (34.7 %), compared to cyclosporine-A(5), a standard T cell inhibitor (53.6 %) which was given to Balb/C mice at 200 mg/kg dose. CSC did notsignificantly (p < 0.01) suppress Th2 (IL-4) system.Conclusion: The findings from this investigation reveal that C. scariosus causes immunosuppressionby inhibiting Th1 cytokines

Anti-inflammatory and analgesic activity of different fractions of Boswellia serrata

The study was designed to investigate the anti-inflammatory and analgesic effect of different fractions of Boswellia serrata. The effect of different fractions of Boswellia serrata were studied using carrageenan induced paw edema, acetic acid induced writhing response, formalin induced pain, hot plate and tail flick method for studying anti-inflammatory and analgesic activity, respectively. The different fractions of B. serrata, essential oil (10 ml/kg), gum (100 mg/kg, resin (100 mg/kg) oleo-resin (100 mg/kg) and oleo-gum-resin (100 mg/kg) significantly reduces carrageenan induced inflammation in rats and shows analgesic activity, as determined by acetic acid induced writhing response, formalin induced pain, hot plate and tail flick method. The different fractions of B. serrata showed prompt anti-inflammatory and analgesic activity due to the inhibition of 5-lipoxygenase enzyme.Keywords: Analgesic; Boswellia serrata; Inflammation; 5- lipoxygenase; Burseraceae

Antimicrobial Studies On Nicandra physaloides

Antimicrobial studies were carried out using methanolic and aqueous extract of leaf, fruit, stem and root of Nicandra physaloides. The microorganisms used in study were Bacillus subtilis NCIM 2439, Mycobacterium phelei, Proteus mirabilis and Staphylococcus edidermidis NCIM 2493, Candida albicans and Aspergilus flavus NCIM535. Penicillin for gram-positive bacteria, streptomycin for gram-negative bacteria and clotrimazole for fungi were used as standard. The Nicandra physaloides extract both methanolic and aqueous was active against gram positive and gram negative bacterial strains. Both methanolic and aqueous extract of leaves and roots was active against fungi Candida albicans and Aspergillus flavus. Keywords: Nicandra physaloides, Solanaceae, Antimicrobial activity,Nigerian Journal of Natural Products and Medicine Vol. 11 2007 pp. 71-7

Metamorphic P-T conditions and CO(2) influx history of medium-grade metapelites from Karakorum, Trans-Himalaya, India

Abstract not availableHimanshu K. Sachan, M. Santosh, Divya Prakash, Aditya Kharya, P. Chandra Singh, Santosh K. Ra

Reduction of neonatal mortality requires strengthening of the health system: A situational analysis of neonatal care services in Ballabgarh

Background: Planning a comprehensive program addressing neonatal mortality will require a detailed situational analysis of available neonatal-specific health infrastructure. Methods: We identified facilities providing essential and sick neonatal care (ENC, SNC) by a snowballing technique in Ballabgarh Block. These were assessed for infrastructure, human resource and equipment along with self-rated competency of the staff and compared with facility-based or population-based norms. Results: A total of 35 facilities providing ENC and 10 facilities for SNC were identified. ENC services were largely in the public-sector domain (68.5% of births) and were well distributed in the block. SNC burden was largely being borne by the private sector (66% of admissions), which was urban-based. The private sector and nurses reported lower competency especially for SNC. Only 53.9% of government facilities and 17.5% of private facilities had a fully equipped newborn care corner. Conclusions: Serious efforts to reduce neonatal mortality would require major capacity strengthening of the health system, including that of the private sector