Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae
Streptococcus pneumoniae is an important pathogen cause various severe illness in human particularly pneumonia, septicaemia and meningitis. One of its virulence factors is hyaluronate lyase, an enzyme which degrades hyaluronic acid (HA), a major component in extracellular matrix of human connective...
| Main Authors: | , , , , |
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| Format: | Proceeding Paper |
| Language: | English English |
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2015
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| Online Access: | http://irep.iium.edu.my/45523/ http://irep.iium.edu.my/45523/8/Poster_ICBHSR_15_Hanani_4.pdf http://irep.iium.edu.my/45523/10/Dr_Hanani_2015.pdf |
| _version_ | 1848782801138089984 |
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| author | Ahmad Yusof @ Hanafi, Hanani Mohd Desa, Mohd Nasir Masri, Siti Norbaya Osman, Malina Jamal, Farida |
| author_facet | Ahmad Yusof @ Hanafi, Hanani Mohd Desa, Mohd Nasir Masri, Siti Norbaya Osman, Malina Jamal, Farida |
| author_sort | Ahmad Yusof @ Hanafi, Hanani |
| building | IIUM Repository |
| collection | Online Access |
| description | Streptococcus pneumoniae is an important pathogen cause various severe illness in human particularly pneumonia, septicaemia and meningitis. One of its virulence factors is hyaluronate lyase, an enzyme which degrades hyaluronic acid (HA), a major component in extracellular matrix of human connective tissues. Degradation of HA decrease host tissue viscosity and eventually increase tissue permeability to allow migration of pneumococcus or its product into human tissues. The study attempted to screen production of hyaluronate lyase in 100 isolates of S. pneumoniae from various sites and year of isolation, and other bacterial characteristics. Ninety-six isolates (96%) showed positive hyaluronate lyase through hyaluronic acid diffusion agar method. Few positive hyaluronate lyase isolates were selected and proceed to enzymatic activity determination through hyaluronic acid turbidity reduction assay. The study found that non-vaccine serotypes and carriage isolates showed high hyaluronate lyase activity than invasive isolates. This finding suggest that hyaluronate lyase in S. pneumoniae might play more important role in pneumococcal colonization than invasion. |
| first_indexed | 2025-11-14T16:11:14Z |
| format | Proceeding Paper |
| id | iium-45523 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T16:11:14Z |
| publishDate | 2015 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-455232016-02-03T02:24:20Z http://irep.iium.edu.my/45523/ Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae Ahmad Yusof @ Hanafi, Hanani Mohd Desa, Mohd Nasir Masri, Siti Norbaya Osman, Malina Jamal, Farida QR Microbiology Streptococcus pneumoniae is an important pathogen cause various severe illness in human particularly pneumonia, septicaemia and meningitis. One of its virulence factors is hyaluronate lyase, an enzyme which degrades hyaluronic acid (HA), a major component in extracellular matrix of human connective tissues. Degradation of HA decrease host tissue viscosity and eventually increase tissue permeability to allow migration of pneumococcus or its product into human tissues. The study attempted to screen production of hyaluronate lyase in 100 isolates of S. pneumoniae from various sites and year of isolation, and other bacterial characteristics. Ninety-six isolates (96%) showed positive hyaluronate lyase through hyaluronic acid diffusion agar method. Few positive hyaluronate lyase isolates were selected and proceed to enzymatic activity determination through hyaluronic acid turbidity reduction assay. The study found that non-vaccine serotypes and carriage isolates showed high hyaluronate lyase activity than invasive isolates. This finding suggest that hyaluronate lyase in S. pneumoniae might play more important role in pneumococcal colonization than invasion. 2015 Proceeding Paper NonPeerReviewed application/pdf en http://irep.iium.edu.my/45523/8/Poster_ICBHSR_15_Hanani_4.pdf application/pdf en http://irep.iium.edu.my/45523/10/Dr_Hanani_2015.pdf Ahmad Yusof @ Hanafi, Hanani and Mohd Desa, Mohd Nasir and Masri, Siti Norbaya and Osman, Malina and Jamal, Farida (2015) Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae. In: International Conference on Biomedical and Health Sciences Research 2015, 25-27 Jan 2015, The Everly Hotel Putrajaya. (Unpublished) https://www.facebook.com/ICBHSR/info?tab=page_info |
| spellingShingle | QR Microbiology Ahmad Yusof @ Hanafi, Hanani Mohd Desa, Mohd Nasir Masri, Siti Norbaya Osman, Malina Jamal, Farida Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae |
| title | Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae |
| title_full | Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae |
| title_fullStr | Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae |
| title_full_unstemmed | Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae |
| title_short | Hyaluronate lyase activity in Malaysian Isolates of Streptococcus pneumoniae |
| title_sort | hyaluronate lyase activity in malaysian isolates of streptococcus pneumoniae |
| topic | QR Microbiology |
| url | http://irep.iium.edu.my/45523/ http://irep.iium.edu.my/45523/ http://irep.iium.edu.my/45523/8/Poster_ICBHSR_15_Hanani_4.pdf http://irep.iium.edu.my/45523/10/Dr_Hanani_2015.pdf |