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In-house polymerase chain reaction for affordable and sustainable Chlamydia trachomatis detection in Trinidad and Tobago
Rampersad, Joanne; Wang, Xiaohui; Gayadeen, Helen; Ramsewak, Samuel; Ammons, David.
  • Rampersad, Joanne; University of the West Indies. Department of Life Sciences. St. Augustine. TT
  • Wang, Xiaohui; University of Texas-Pan American. Mathematics Department. Edinburg. US
  • Gayadeen, Helen; University of the West Indies. Faculty of Medical Sciences. School of Medicine. Mount Hope. TT
  • Ramsewak, Samuel; University of the West Indies. Faculty of Medical Sciences. School of Medicine. Mount Hope. TT
  • Ammons, David; University of the West Indies. Faculty of Medical Sciences. School of Veterinary Medicine. St. Augustine. TT
Rev. panam. salud pública ; 22(5): 317-322, nov. 2007. ilus, tab
Article in English | LILACS | ID: lil-473284
ABSTRACT
OBJECTIVES: To provide a preliminary assessment of in-house polymerase chain reaction (PCR) as an alternative to the more costly commercial test for detection of asymptomatic infection by Chlamydia trachomatis and to provide much needed demographic data on infection indicators within the Trinidad and Tobago public health care system. METHODS: An inexpensive in-house nested-PCR with an Internal Amplification Control was used to detect C. trachomatis and Neisseria gonorrhoeae in urine samples collected from 273 apparently healthy, pregnant women from March-September 2004 in Trinidad, West Indies. Demographic information on participants was collected and subjected to statistical analyses. RESULTS: C. trachomatis was detected in 57/273 (21 percent) samples, of which 5 (2 percent) were also positive for N. gonorrhoeae. Infection correlated well with certain demographic parameters, with the highest incidence of C. trachomatis infection found among pregnant women that were single or of African descent. CONCLUSIONS: Given the lack of commercial tests in Trinidad, in-house PCR is an inexpensive alternative that can be used to detect asymptomatic infections of C. trachomatis and to provide demographic information needed for interventions by the public health care system.
RESUMEN
OBJETIVOS: Hacer una evaluación preliminar de un sistema autóctono para la detección de la infección asintomática por Chlamydia trachomatis mediante la reacción en cadena de la polimerasa (RCP), como alternativa a los costosos sistemas comerciales, y ofrecer datos demográficos muy necesarios relacionados con los indicadores de esta infección en el sistema de salud pública de Trinidad y Tobago. MÉTODOS: Se empleó un sistema autóctono y económico de RCP anidada con control interno de la amplificación para la detección de C. trachomatis y Neisseria gonorrhoeae en muestras de orina de 273 mujeres embarazadas asintomáticas, entre marzo y septiembre de 2004 en Trinidad y Tobago, Indias Occidentales. Se obtuvo la información demográfica de las participantes y se sometió a análisis estadístico. RESULTADOS: Se detectó C. trachomatis en 57/273 (21 por ciento) muestras, de las cuales 5 (2 por ciento) fueron también positivas para N. gonorrhoeae. La infección se correlacionó bien con algunos parámetros demográficos; la mayor incidencia de la infección por C. trachomatis se observó en las mujeres embarazadas solteras o de ascendencia africana. CONCLUSIONES: Debido al déficit de sistemas de diagnóstico comerciales en Trinidad, la RCP autóctona es una alternativa económica que puede emplearse para detectar la infección asintomática por C. trachomatis y obtener la información demográfica necesaria para que el sistema de salud pública implemente intervenciones.
Subject(s)

Full text: Available Index: LILACS (Americas) Main subject: Pregnancy Complications, Infectious / Chlamydia Infections / Chlamydia trachomatis / Polymerase Chain Reaction Type of study: Diagnostic study Limits: Female / Humans / Pregnancy Country/Region as subject: English Caribbean / Trinidad and Tobago Language: English Journal: Rev. panam. salud pública Journal subject: Public Health Year: 2007 Type: Article Affiliation country: Trinidad and Tobago / United States Institution/Affiliation country: University of Texas-Pan American/US / University of the West Indies/TT

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Full text: Available Index: LILACS (Americas) Main subject: Pregnancy Complications, Infectious / Chlamydia Infections / Chlamydia trachomatis / Polymerase Chain Reaction Type of study: Diagnostic study Limits: Female / Humans / Pregnancy Country/Region as subject: English Caribbean / Trinidad and Tobago Language: English Journal: Rev. panam. salud pública Journal subject: Public Health Year: 2007 Type: Article Affiliation country: Trinidad and Tobago / United States Institution/Affiliation country: University of Texas-Pan American/US / University of the West Indies/TT