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167 results on '"Katila, M. -L"'

8. Environmental factors affecting the occurrence of mycobacteria in brook waters

Author

Iivanainen, E.K., Martikainen, P.J., Vaananen, P.K., and Katila, M.-L.

Subjects
Mycobacteria -- Research, Aquatic microbiology -- Environmental aspects, Biological sciences
Abstract

The effect of environmental factors on the occurrence of environmental mycobacteria was evaluated. Water samples were collected from 53 drainage areas in Finland. Local precipitation data, water temperature, acidity, electrical conductivity and the amount of heterotrophic bacteria and cultivated mycobacteria were calculated and analyzedby Spearman rank correlation analyses and stepwise linear multiple regression analyses. It was found that the occurrence of brook water mycobacteria is affected by several environmental factors.

Published
1993

13. Detection and typing of Campylobacter jejuni and Campylobacter coli and analysis of indicator organisms in three waterborne outbreaks in Finland

Author

Hanninen, Marja-Liisa, Haajanen, H., Pummi, T., Wermundsen, K., Katila, M.-L., Sarkkinen, H., Miettinen, I., and Rautelin, H.

Subjects
Waterborne infections -- Analysis, Campylobacter -- Testing, Serology -- Research, Genotype -- Analysis, Biological sciences
Abstract

Research describes the analyses of three waterborne outbreaks caused by Campylobacters and their comparison with those isolated from environmenal and patient samples by typing for heat-stable Penner serotypes. Pulsed-field gel electrophoresis method is employed to analyze genotypic similarities and to evaluate any association between water contamination and illness.

Published
2003

38. The Use of Enzyme-Linked Immunosorbent Assay (ELISA) in the Diagnosis of Farmer's Lung.

Author

Ojanen, T. H., Katila, M.-L., and Mäntyjärvi, R. A.

Subjects
IMMUNOGLOBULINS, PATIENTS, DISEASES in agricultural laborers, IMMUNITY, FARMER'S lung, MYCELIUM
Abstract

Enzyme-linked immunosorbent assay (ELISA) was adapted to measure antibodies against Aspergillus fumigatus. Thermoactinomyces vulgaris and Micropolyspora faeni. Mycelial and culture fluid antigens were used separately to analyze antibodies in three study groups; farmer's lung patients, patients with bronchitis and healthy control persons. The mycelial antigen of A. fumigatus gave more positive results than the corresponding culture fluid antigen. The situation was reversed for the actinomycetes. For this reason either a mycelial antigen or a combination of mycelial and culture fluid antigens should be used in ELISA in routine tests. The prevalence and the titers of antibodies against the three microbes detected by ELISA were higher in the farmer's lung group than in the other two groups. [ABSTRACT FROM AUTHOR]

Published
1980
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41. Exposure of water consumers to mesophilic actinomycetes.

Author

Ojanen, T. H., Katila, M.-L., Mäntyjärvi, R., Seppänen, H., Muittari, A., Kuusisto, P., and Virtanen, P.

Abstract

In autumn 1978 an epidemic of respiratory disease resembling allergic alveolitis occurred in a small Finnish community. The disease was caused by repeated exposures to tap water aerosol. The raw water of the community and the sand filters of the purification system were heavily contaminated with mesophilic actinomycetes. Fourteen different strains of actinomycetes were isolated. Exposed persons with and without symptoms as well as unexposed control persons were tested for antibodies against five of these actinomycetes and against Enterobacter agglomerans. Both the exposed and the control persons had antibodies to actinomycetes but the exposed persons had antibodies against more actinomycete strains than the control persons. Precipitating antibodies against E. agglomerans were also found in control persons as well as in patients. There was a significant difference between the patients and the exposed healthy persons in bacterial agglutination tests with flagellar antigen of one E. agglomerans strain. However, the role of mesophilic actinomycetes and E. agglomerans in the aetiology of the disease could not be firmly established. [ABSTRACT FROM PUBLISHER]

Published
1983
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45. Aminoglycoside resistance among blood culture isolates

Author

Huovinen, P, Grönroos, P, Herva, E, Katila, M L, Klossner, M L, Renkonen, O V, and Toivanen, P

Abstract

A total of 633 blood culture isolates were collected from 1981 to 1982 from seven major Finnish hospitals, including all university central hospitals. Susceptibility of the strains to gentamicin, tobramycin, amikacin, and netilmicin was determined by the Sensititre microtiter procedure. Resistance against any of these agents occurred in 1.3 to 6.5% of all strains studied. In the Turku University Central Hospital, an increased number of tobramycin- and gentamicin-resistant Staphylococcus epidermidis were found; the frequency of strains resistant to tobramycin was 57% and to gentamicin was 29% versus frequencies of 16 and 18%, respectively, which were observed in the other hospitals. An explanation for this might be a change in the use of aminoglycosides in the Turku University Central Hospital; within 3 years, 1979 to 1981, the consumption of tobramycin and amikacin had increased 330 and 290%, respectively, whereas the use of gentamicin had decreased to 24% of that in the beginning of the period. Resistance against tobramycin was mediated by enzymes APH(2")-AAC(6') and ANT(4').

Published
1984
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46. A prioritised research agenda for DOTS-Plus for multidrug-resistant tuberculosis (MDR-TB)

Author

Beggs, A., Laing, R., Preger, J., Castro, K., Cegielski, J. P., Luca, N., Laserson, K., Walton, W., Wells, C., Erokhin, V., Mishin, V., Vassilieva, I., Karataev, O. N., Drobniewski, F., Brander, L., Katila, M. -L, Malakhov, I., Safonova, S., Sheyanenko, O., Starchenkova, N., Farmer, P., Hiatt, H., Kim, J., Mukherjee, J., Murray, M., Becerra, M., Nardell, E., Palmero, D. J., Bonilla, C., Solovic, I., Mahmud, A. M., Rahman, A., Melnyk, V. M., Portaels, F., Creach, P., Billo, N., Repina, E., Rakhishev, G., Pechiorina, I., Squire, S. B., Coker, R., Arora, V. K., Sloutsky, A., Timperi, R., Henkens, M., Lafontaine, D., Slavuckij, A., Vezhnina, N., Cullinan, T., Healing, T., Weyer, K., Heifets, L., Iseman, M., Lee, D. -H, Park, S. -K, Chaulet, P., Zúñiga Gajardo, M., Mata, Z., Danilovits, M., Vink, K., Khechinashvili, G., Louissant, M., Ismailov, S., Kibuga, D., Leimane, V., Davidaviciene, E., Ferreira, E., Macarthur, A., Bam, D. S., Alarcón, E., Pedro G Suarez, Rodriguez Marco, J., Reichmann, L. B., Salfinger, M., Hasler, T., Ovreberg, K., Ringdal, T., Bayona García, J., Barry, D., Castro, A., Mitnick, C., Rich, M., Seung, K., Livchane, E., Passetchnikov, A., Ponomarenko, O., Trusov, A., Mariandyshev, A., Strelis, A. K., Lambregts-Van Weezenbeek, C., Perelmann, M. I., Borstchevsky, V., Törün, T., Hoffner, S., Sillastu, H., Barid, S., Hinman, A., Rosenberg, M. L., Schieffelbein, C., Arnadottir, T., Peremitin, G., Tonkel, T., Tupasi, T., Lechuga Perez, H., Burgos, M., Jurkuvenas, V., Kimerling, M., Hopewell, P., Bacheller, S., Bloom, A., St Antoine, J. -J, Tayler, Y., Weil, D., Aziz, M., Ramon Cruz, J., Espinal, M., Figueroa, R., Gupta, R., Lee, J. -W, Ottmani, S. -E, Raviglione, M., Seita, A., Smith, I., Zaleskis, R., and Cho, S. -N

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