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Maha A, Majumdar SS, Main S, Phillip W, Witari K, Schulz J, du Cros P. The effects of decentralisation of tuberculosis services in the East New Britain Province, Papua New Guinea. Public Health Action 2019; 9:S43-S49. [DOI: 10.5588/pha.18.0070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 01/13/2019] [Indexed: 11/10/2022] Open
Affiliation(s)
- A. Maha
- National Department of Health, Port Moresby, Papua New Guinea
| | | | - S. Main
- The Burnet Institute, Melbourne, Victoria, Australia
| | - W. Phillip
- The Burnet Institute, Melbourne, Victoria, Australia
| | - K. Witari
- Nonga General Hospital, Rabaul, Papua New Guinea
| | - J. Schulz
- Nonga General Hospital, Rabaul, Papua New Guinea
| | - P. du Cros
- The Burnet Institute, Melbourne, Victoria, Australia
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Low CF, Mariana NS, Maha A, Chee HY, Fatimah MY. Identification of immune response-related genes and signalling pathways in spleen of Vibrio parahaemolyticus-infected Epinephelus fuscoguttatus (Forskal) by next-generation sequencing. J Fish Dis 2016; 39:389-394. [PMID: 25786532 DOI: 10.1111/jfd.12359] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 01/19/2015] [Accepted: 01/20/2015] [Indexed: 06/04/2023]
Affiliation(s)
- C-F Low
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - N S Mariana
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - A Maha
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - H-Y Chee
- Department of Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - M Y Fatimah
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Low CF, Mariana NS, Maha A, Chee HY, Fatimah MY. Non-immune-related genes and signalling pathways in spleen of Vibrio parahaemolyticus-infected Epinephelus fuscoguttatus (Forskal). J Fish Dis 2015; 38:761-764. [PMID: 25073481 DOI: 10.1111/jfd.12283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 05/19/2014] [Accepted: 05/22/2014] [Indexed: 06/03/2023]
Affiliation(s)
- C-F Low
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - N S Mariana
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Department of Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - A Maha
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - H-Y Chee
- Department of Microbiology and Parasitology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - M Y Fatimah
- Laboratory of Marine Biotechnology, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Chin V, Lee T, Foong K, Maha A, Rusliza B, Norhafizah B, Chong P. Pathogenesis and involvement of Interleukin-11 in response to Candida albicans in a murine intravenous challenge model. Asian Pacific Journal of Tropical Disease 2014. [DOI: 10.1016/s2222-1808(14)60556-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Chin VK, Foong KJ, Maha A, Rusliza B, Norhafizah M, Ng KP, Chong PP. Candida albicans isolates from a Malaysian hospital exhibit more potent phospholipase and haemolysin activities than non-albicans Candida isolates. Trop Biomed 2013; 30:654-662. [PMID: 24522136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study was aimed at determining the phospholipase and haemolysin activity of Candida isolates in Malaysia. A total of 37 Candida clinical isolates representing seven species, Candida albicans (12), Candida tropicalis (8), Candida glabrata (4), Candida parapsilosis (1), Candida krusei (4), Candida orthopsilosis (1) and Candida rugosa (7) were tested. In vitro phospholipase activity was determined by using egg yolk plate assay whereas in vitro haemolysin activity was tested by using blood plate assay on sheep blood Sabouraud's dextrose agar (SDA) enriched with glucose. Phospholipase activity was detected in 75% (9 out of 12) of the C. albicans isolates. Among the 25 non- C. albicans Candida isolates, phospholipase activity was detected in only 24% of these isolates. The phospholipase activity of C. albicans was significantly higher than that of the non- C. albicans Candida isolates (P=0.002). Haemolysin activity was detected in 100% of the C. albicans, C. tropicalis, C. glabrata, C. krusei, C. parapsilosis, and C. orthopsilosis isolates while 75% of the C. krusei isolates and 12.3% of the C. rugosa isolates showed haemolysin activity. The haemolytic activity of C. albicans was significantly higher than that of the non- C. albicans Candida isolates (P=0.0001).The findings in this study indicate that C. albicans isolates in Malaysia may possess greater virulence potential than the non-albicans species.
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Affiliation(s)
- V K Chin
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia
| | - K J Foong
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia
| | - A Maha
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia
| | - B Rusliza
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia
| | - M Norhafizah
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia
| | - K P Ng
- Department of Microbiology, Faculty of Medicine, University of Malaya, Malaysia
| | - P P Chong
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia
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Fazlina N, Maha A, Jamal R, Zarina AL, Cheong SK, Hamidah H, Ainoon O, Zulkifli SZ, Hamidah NH. Expression of multidrug resistance (MDR) proteins andin vitrodrug resistance in acute leukemias. Hematology 2013; 12:33-7. [PMID: 17364990 DOI: 10.1080/10245330600940030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
The expression of the multidrug resistance (MDR) proteins may influence the outcome of treatment in patients with acute leukemia. The aim of this study was to determine the IC50 of cytotoxic drugs (cytosine arabinoside, ara-C and daunorubicin, dnr) using the in vitro 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)2H-tetrazolium, inner salt (MTS) assay method. A total of 82 newly diagnosed acute leukemia cases (43 adult myeloid leukaemia, AML cases and 39 acute lymphoblastic leukaemia, ALL cases) and 16 relapsed cases (8 AML cases and 8 ALL cases) were studied. The MTS assay was performed using two cytotoxic drugs, dnr and ara-C. Cells were incubated with different concentrations of drugs for 4 days and the IC50 was extrapolated from the viability curve. In newly diagnosed cases, we found that childhood ALL samples showed higher IC50 values of dnr (0.040 +/- 2.320) compared to adult AML samples (0.021 +/- 0.158). In contrast, newly diagnosed adult AML samples showed higher IC50 values of ara-C (0.157 +/- 0.529) compared to childhood ALL samples (0.100 +/- 2.350). In relapsed cases, two samples of childhood ALL showed IC50 values of dnr (0.910 +/- 1.760) and ara-C (1.310 +/- 2.390), which was higher compared to childhood AML samples (0.129 +/- 0.214 and 0.210 +/- 0.003, respectively). However, there was no correlation between IC50 values of these drugs tested with clinical outcome. In conclusion, we found that MTS assay is an easy, rapid and non laborious method to study in vitro drug resistance in acute leukaemia cases.
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Affiliation(s)
- N Fazlina
- Department of Pathology, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Liew L, Maha A, Chong P, Leong C, Fadilah S, Cheong S. Bone marrow-derived mesenchymal stromal cells expressing interferon-gamma inhibit proli-feration of chronic myeloid leukemia cells in vitro. Cytotherapy 2013. [DOI: 10.1016/j.jcyt.2013.01.212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chong PP, Asyikin N, Rusinahayati M, Halimatun S, Rozita R, Ng CK, Hamilton WHW, Tan BC, Noraihan N, Rohani A, Faezah H, Latiffah L, Maha A, Sabariah AR. High prevalence of human papillomavirus DNA detected in cervical swabs from women in southern Selangor, Malaysia. Asian Pac J Cancer Prev 2010; 11:1645-1651. [PMID: 21338211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
Persistent high-risk human papillomavirus (HPV) infection is known to play an important role in the genesis of cervical cancer. Since new screening and prevention strategies, namely improved HPV testing and HPV vaccination have been aggressively promoted recently, it is crucial to investigate the HPV distribution in Malaysia in order to maximize their cost-effectiveness. This study was therefore conducted to assess the HPV type distribution in the most populous region, the state of Selangor. A total of 200 cervical swab samples were collected in two health-screening campaigns, and also from women attending obstetrics and gynecology clinics in several hospitals in Selangor. DNA extraction was performed and HPV DNA was detected via nested PCR using MY09/MY11 as outer primers and GP5+/GP6+ as inner primers which target the L1 gene of the viral genome. The purified PCR products were subjected to automated DNA sequencing to determine the HPV genotype. Out of 180 β-globin positive samples, 84 (46.7%) were positive for HPV DNA. The most common HPV type found was high-risk oncogenic type 16 (40%), followed by HPV type 18 (3.3%), HPV 33 (1.7%), HPV 31 (0.6%), and low-risk HPV 87 (0.6%). Our study confirmed that nested PCR method is highly sensitive in detecting HPV DNA even in low risk patients. Since a relatively high prevalence rate of HPV infection was found in this population, prompt healthcare policy changes to bring about implementation of early HPV vaccination program is desirable to prevent a high incidence of cervical cancer.
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Affiliation(s)
- P P Chong
- Department of Biomedical Sciences, Universiti Putra Malaysia.
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Rusinahayati M, PeiPei C, Asyikin AN, Noraihan M, Maha A, Rohani A, Hamilton HW, Ng C. P1089 Socio-demographic factor associated with HPV infection from non-cervical cancer women in Southern Selangor, Malaysia. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)62574-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Fazlina N, Maha A, Zarina AL, Hamidah A, Zulkifli SZ, Cheong SK, Ainoon O, Jamal R, Hamidah NH. Assessment of P-gp and MRP1 activities using MultiDrugQuant Assay Kit: a preliminary study of correlation between protein expressions and its functional activities in newly diagnosed acute leukaemia patients. Malays J Pathol 2008; 30:87-93. [PMID: 19291917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Multidrug resistance (MDR) is believed to be responsible for poor response of patients towards chemotherapy particularly patients with acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL). The best-characterized resistance mechanism is the one mediated by permeability-glycoprotein (P-gp) encoded by MDR1 gene, which is responsible for drug efflux. We studied P-gp and multidrug resistance-associated protein 1 (MRP1) expression and functional activities in 43 newly diagnosed acute leukemia cases (19 paediatric ALL cases and 24 adult AML cases). The expression and functional activities were examined using flow cytometry and MultiDrugQuant assay kit (involving calcein AM uptake and efflux). P-gp and MRP1 expression and its functional activities were observed in 68.4% of paediatric ALL. In adult AML cases, all cases expressed MRP1 and its functional activities but only 58.3% were positive for P-gp and its functional activities. We were able to show a significant correlation between the expression of the multidrug resistant protein (P-gp and MRP1) and their functional activity in adult AML and paediatric ALL samples.
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Affiliation(s)
- N Fazlina
- Haematology Unit, Department of Pathology, Faculty of Medicine, University Kebangsaan Malaysia, Kuala Lumpur
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Kourounis G, Bias A, Maha A, Tzigounis V, Ladopoulos I. Vulvar neoplasia and search for human papillomavirus 16 and 18 genetic information. Short communication. CLIN EXP OBSTET GYN 2000; 26:219-20. [PMID: 10668162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
The presence of HPV 16 and 18 is frequent in cases with vulvar carcinomas and intraepithelial neoplasias.
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Affiliation(s)
- G Kourounis
- Department of Obstetrics and Gynecology, University of Patras, Greece
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