Methods This prospective study was done at NMC, Nellore from July 2008-December 2009. Samples received at microbiology lab for acid fast staining were included in this study. Smears were stained by Ziehl-Neelsen’s technique. Samples were cultured on Lowenstein-Jensen media after processing by modified Petroff’s method and incubated according to CLSI guidelines. Identification of Mycobaterium tu...

Currently, one third of the world's population is infected with Mycobacterium tuberculosis and 8.9-9.9 million new and relapse cases of tuberculosis are reported every year. The emergence of new cases, the increased incidence of multi-drug resistant strains of M. tuberculosis, and the adverse effects of first- and second-line antituberculosis drugs have led to renewed research interest in natur...

In the present investigation, a series of 12 Mannich bases (QP1-12) and 5 Schiff bases (QSP1-5) of pyrazol-5(4H)-one moiety containing 3-(hydrazinyl)-2-phenylquinazolin-4(3H)-one has been synthesized and characterized by physicochemical as well as spectral means. The synthesized Mannich and Schiff bases were screened for their preliminary antimicrobial activity against Gram-positive and Gram-ne...

A quantitative structure activity relationship study was performed on different groups of anti-tuberculosis drug compound for establishing quantitative relationship between biological activity and their physicochemical /structural properties. In recent years, a large number of herbal drugs are promoted in treatment of tuberculosis especially due to the emergence of MDR (multi drug resistance) a...

3. Insulin (1 IU/kg, S. q.) 4 -24.31 -19.6 -27.57 -2.46 ± 1.36 ± 2.10 ± 1.26 ± .72 Isoniazid+ (5 mg/kg. P.O.) p•• >.05 <.001 >.05 >.05 Frequent coexistence of pulmonary tuberculosis and diabetes mellitus is a well known observation. Long term therapy with antitubercular and antidiabetic drugs is quite likely to exhibit drug interactions. In the present study we have studied the effect of isonia...

A series of N'-substituted-2-(5-nitrofuran or 5-nitrothiophen-2-yl)-3H-benzo[d]imidazole-5-carbohydrazide derivatives were synthesized and investigated for their abilities to inhibit β-hematin formation, hemoglobin hydrolysis and in vivo for their antimalarial efficacy in rodent Plasmodium berghei. Selected analogues were screened for their antitubercular activity against sensitive MTB H(37)Rv ...

Tubercular liver abscess is a rare extrapulmonary manifestation of tuberculosis. We are presenting a case of isolated tubercular liver abscess in a 70 year old diabetic male without any evidence of tuberculosis in the lungs or abdomen. Diagnosis was made on the basis of radiological findings along with PCR for Mycobacterium tuberculosis in pus aspirated from abscess under CT guidance. Systemic ...

As with many psychiatric drugs, the discovery of irreversible MAOIs was serendipitous. While being used as an antitubercular agent in the 1950s, iproniazid—a derivative of the hydrazine compound isocarboxazid—was observed to have significant antidepressant properties. Almost at the same time as the discovery of TCAs such as amitriptyline and imipramine (which were also discovered by chance), MA...

An Aspergillus versicolor isolated from sediment collected from the Bohai Sea, China, yielded the new dimeric diketopiperazine brevianamide S (1), together with three new monomeric cometabolites, brevianamides T (2), U (3), and V (4). Structures were determined by detailed spectroscopic analysis. Brevianamide S exhibited selective antibacterial activity against Bacille Calmette-Guérin (BCG), su...

Tuberculosis, caused by Mycobacterium tuberculosis, continues to be a serious public health problem around the world, and it urges the need for development of new antitubercular drugs. An antibiotic producing strain, Streptomyces luridus (MTCC 4402) was earlier isolated from soil by our group. In this work, the phylogenic status was established by 16S rRNA gene sequence analysis. The strain was...