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Characterization of pPCP1 Plasmids in Yersinia pestis Strains Isolated from the Former Soviet Union.

ABSTRACT: Complete sequences of 9.5-kb pPCP1 plasmids in three Yersinia pestis strains from the former Soviet Union (FSU) were determined and compared with those of pPCP1 plasmids in three well-characterized, non-FSU Y. pestis strains (KIM, CO92, and 91001). Two of the FSU plasmids were from strains C2614 and C2944, isolated from plague foci in Russia, and one plasmid was from strain C790 from Kyrgyzstan. Sequence analyses identified four sequence types among the six plasmids. The pPCP1 plasmids in the FSU strains were most genetically related to the pPCP1 plasmid in the KIM strain and least related to the pPCP1 plasmid in Y. pestis 91001. The FSU strains generally had larger pPCP1 plasmid copy numbers compared to strain CO92. Expression of the plasmid's pla gene was significantly (P ? .05) higher in strain C2944 than in strain CO92. Given pla's role in Y. pestis virulence, this difference may have important implications for the strain's virulence.

SUBMITTER: Rajanna C

PROVIDER: S-EPMC3010648 | biostudies-literature | 2010

REPOSITORIES: biostudies-literature

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Characterization of pPCP1 Plasmids in Yersinia pestis Strains Isolated from the Former Soviet Union.

Rajanna Chythanya C Revazishvili Tamara T Rashid Mohammed H MH Chubinidze Svetlana S Bakanidze Lela L Tsanava Shota S Imnadze Paata P Bishop-Lilly Kimberly A KA Sozhamannan Shanmuga S Gibbons Henry S HS Morris J Glenn JG Sulakvelidze Alexander A

International journal of microbiology 20101220

Complete sequences of 9.5-kb pPCP1 plasmids in three Yersinia pestis strains from the former Soviet Union (FSU) were determined and compared with those of pPCP1 plasmids in three well-characterized, non-FSU Y. pestis strains (KIM, CO92, and 91001). Two of the FSU plasmids were from strains C2614 and C2944, isolated from plague foci in Russia, and one plasmid was from strain C790 from Kyrgyzstan. Sequence analyses identified four sequence types among the six plasmids. The pPCP1 plasmids in the FS ...[more]

PMID: 21197443

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Project description:Germany is a country known for immigration. In 2015, 21% of the general population in Germany consisted of individuals with a migration background. This article focuses on cancer-specific incidence and mortality among one of the biggest migrant groups in Germany: the resettlers. Resettlers are ethnic Germans who mainly immigrated from the Russian federation and other countries of the former Soviet Union after its collapse in 1989. We investigated differences between resettlers and the general German population, regarding (i) incidence and mortality of malignant neoplasms, (ii) time trends of the corresponding incidence and mortality, and (iii) cancer stage at diagnosis. We provide data from two resettler cohorts covering an observation time of 20 years: one cohort on cancer incidence (N = 32,972), and another cohort on mortality (N = 59,390). Cancer-specific standardized incidence ratios (SIR) and standardized mortality ratios (SMR) for all malignant neoplasms combined and the most common cancer-sites were calculated between resettlers and the general German population. Time trend analyses using Poisson regression were performed to investigate the developments of SIRs and SMRs. To investigate differences in stage at diagnosis, logistic regression was performed, calculating Odds Ratios for condensed cancer stages. We observed higher incidence and mortality of stomach cancer [SIR (men) 1.62, 95%CI 1.17-2.19; SMR (men) 1.62, 95%CI 1.31-2.01; SIR (women) 1.32, 95%CI 0.86-1.94; SMR (women) 1.52, 95%CI 1.19-1.93] and higher mortality of lung cancer [SMR (men) 1.34, 95%CI 1.20-1.50] among resettlers compared to the general German population, but lower incidence and mortality of colorectal (both sexes), lung (women), prostate and female breast cancer. However, time trend analyses showed converging incidence risks of cause-specific incidence over time, whereas differences of mortality did not show changes over time. Results from logistic regression suggest that resettler men were more often diagnosed with advanced cancer stages compared to the Münster population. Our findings suggest that risk factor patterns of the most common cancer-sites among resettlers are similar to those observed within the Russian population. Such increases in prostate, colorectal and breast cancer incidence may be the consequence of improved detection measures, and/or the adaptation of resettlers to the German lifestyle.

Dataset Information

Characterization of pPCP1 Plasmids in Yersinia pestis Strains Isolated from the Former Soviet Union.

Publications

Characterization of pPCP1 Plasmids in Yersinia pestis Strains Isolated from the Former Soviet Union.

Similar Datasets

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