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SelectedWorks

Murali Malliga Raman

Selected Works

Aegle marmelos

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Full-Text Articles in Life Sciences

Isolation And Partial Characterization Of A Novel Lectin From Aegle Marmelos Fruit And Its Effect On Adherence And Invasion Of Shigella To Ht29 Cells, Raja Sb, Murali Mr, Kumar Nk, Devaraj Sn Jan 2011

Isolation And Partial Characterization Of A Novel Lectin From Aegle Marmelos Fruit And Its Effect On Adherence And Invasion Of Shigella To Ht29 Cells, Raja Sb, Murali Mr, Kumar Nk, Devaraj Sn

Murali Malliga Raman

Lectins are a class of ubiquitous proteins/glycoproteins that are abundantly found in nature. Lectins have unique carbohydrate binding property and hence have been exploited as drugs against various infectious diseases. We have isolated one such novel lectin from the fruit pulp of Aegle marmelos. The isolated lectin was partially characterised and its effect against Shigella dysenteriae infection was evaluated. The isolated lectin was found to be a dimeric protein with N-acetylgalactosamine, mannose and sialic acid binding specificity. The effect of Aegle marmelos fruit lectin on the adherence of Shigella dysenteriae to human colonic epithelial cells (HT29 cells) was evaluated by …


Imperatorin A Furocoumarin Inhibits Periplasmic Cu-Zn Sod Of Shigella Dysenteriae Their By Modulates Its Resistance Towards Phagocytosis During Host Pathogen Interaction, Raja Sb, Murali Mr, Roopa K, Devaraj Sn Jan 2011

Imperatorin A Furocoumarin Inhibits Periplasmic Cu-Zn Sod Of Shigella Dysenteriae Their By Modulates Its Resistance Towards Phagocytosis During Host Pathogen Interaction, Raja Sb, Murali Mr, Roopa K, Devaraj Sn

Murali Malliga Raman

Shigella dysenteriae continues to be a major health problem, which leads to death, due to diarrhoea and dysentery, predominantly in children below the age of 5. Bacterial invasion of the colonic epithelium leads to severe inflammation together with bacterial dissemination generates abscesses and ulcerations. Periplasmic copper, zinc super oxide dismutase of Shigella protects it from exogenous superoxide produced by host, during its invasion. Hence, in present study an attempt was made to study the effect of aqueous extract of Aegle marmelos on host and pathogen defence. Histology analysis of rat ileal loop showed the loss of virulence in aqueous extract …


Effect Of Aqueous Extract Of Aegle Marmelos Fruit On Adherence And Β-Lactam Resistance Of Enteropathogenic Escherichia Coli By Down Regulating Outer Membrane Protein C, Murali Malliga Raman Jan 2009

Effect Of Aqueous Extract Of Aegle Marmelos Fruit On Adherence And Β-Lactam Resistance Of Enteropathogenic Escherichia Coli By Down Regulating Outer Membrane Protein C, Murali Malliga Raman

Murali Malliga Raman

Problem statement: Enteropathogenic Escherichia Coli (EPEC) continue to be a major health problem, leading to death due to diarrhea, predominantly in children below the age of five. Due to evolution of multi drug resistance in EPEC and side effects caused to host by antibiotics necessitated a search for alternative medicines from medicinal plants. One such medicinal plant used since ancient times to cure diarrhea is Aegle marmelos. This study was done to investigate the effect of aqueous extract of Aegle marmelos fruit (AEAM) on outer membrane protein C (OmpC) of EPEC, which plays a key role in adherence and antibiotic …


Differential Expression Of Ompc And Ompf In Multidrug-Resistant Shigella Dysenteriae And Shigella Flexneri By Aqueous Extract Of Aegle Marmelos, Altering Its Susceptibility Toward Beta-Lactam Antibiotics, Raja Sb, Murali Mr, Devaraj Sn Jan 2008

Differential Expression Of Ompc And Ompf In Multidrug-Resistant Shigella Dysenteriae And Shigella Flexneri By Aqueous Extract Of Aegle Marmelos, Altering Its Susceptibility Toward Beta-Lactam Antibiotics, Raja Sb, Murali Mr, Devaraj Sn

Murali Malliga Raman

Steadily increasing resistance among Shigella to beta-lactams, aminoglycosides, and tetracycline has compromised the utility of these commonly used antimicrobial agents. Also, undesirable side effects of certain antibiotics have triggered immense interest in search of alternative therapies using medicinal plants. One such medicinal plant used since ancient times to cure diarrhea is Aegle marmelos. The present study exemplifies the susceptibility of beta-lactam-resistant Shigella dysenteriae and Shigella flexneri toward beta-lactam antibiotics, when grown in the presence of aqueous extract of A. marmelos (AEAM), by altering porin channels. This was demonstrated by antibiotic sensitivity test using disc diffusion method and MIC test. Susceptibility …