Turkish and Japanese Mycobacterium tuberculosis sublineages share a remote common ancestor.

Two geographically distant M. tuberculosis sublineages, Tur from Turkey and T3-Osaka from Japan, exhibit partially identical genotypic signatures (identical 12-loci MIRU-VNTR profiles, distinct spoligotyping patterns). We investigated T3-Osaka and Tur sublineages characteristics and potential genetic relatedness, first using MIRU-VNTR locus analysis on 21 and 25 samples of each sublineage respectively, and second comparing Whole Genome Sequences of 8 new samples to public data from 45 samples uncovering human tuberculosis diversity.

Rapid improvement of massive bloody pleural effusion after splenectomy for splenic marginal zone lymphoma.

Splenic marginal zone lymphoma (SMZL) is a rare malignant lymphoma involving marginal zone B cells, accounting for only 1% of non-Hodgkin lymphomas. No previous reports have documented SMZL accompanied by massive bloody pleural effusion. Herein, the case of a patient with SMZL that was only diagnosed after splenectomy and thoracoscopic pleural biopsy is presented.

Relationship between the isoniazid-resistant mutation katGS315T and the prevalence of MDR-/XDR-TB in Osaka, Japan.

Objective: To determine the prevalence of katGS315T mutations in isoniazid (INH) resistant Mycobacterium tuberculosis and to elucidate the association of katGS315T mutations with the prevalence of multidrug-resistant tuberculosis (MDR-TB).

Design: From 2001 to 2004, 1655 isolates from all newly registered patients who visited the Osaka Prefectural Medical Centre for Respiratory and Allergic Diseases were tested for drug susceptibility. Genotyping was performed using insertion sequence (IS) 6110-restriction fragment length polymorphism (RFLP) in 1629 of 1655 (98.

[A case of non-tuberculous mycobacteriosis with pleurisy with a past history of dense exposure to environmental asbestos].

We report a case of non-tuberculous mycobacteriosis (NTM) with pleurisy in a 75-year-old man. The patient was admitted with a diagnosis of pneumonia. Chest radiography and CT scans revealed a tumorous shadow that increased rapidly in size despite treatment with antibiotics.

[Resistance-conferring mutations of Mycobacterium tuberculosis strains with low level resistance to isoniazid].

Objective: We investigated the prevalence of isoniazid (INH) resistance-conferring mutations in the INH-indeterminate Mycobacterium tuberculosis (MTB) strains.

Materials And Methods: We initially selected a sample of 47 clinical isolates of MTB from patients, who visited the Osaka Prefectural Medical Center for Respiratory and Allergic Diseases from 2000 to 2005. Strains resistant to the concentration of 1 - 2 microg/ml were defined as "indeterminate".