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West Indian med. j ; 51(1): 4-9, Mar. 2002. ilus, tab
Artigo em Inglês | MedCarib | ID: med-106


One hundred and three consecutive cases of breast cancer in Trinidadian women were evaluated for steriod receptor status and c-erB-2 receptor along with conventional parameters including age, ethnicity, tumour size, histological type and grade, and lymph node status: The molecular markers were studied by immunohistochemistry (IHC) on paraffin sections. Tumour size > 2 cm was seen in 60 percent of the cases. Oestrogen receptor (ER), progestrone receptor (PR) and c-erbB-2 showed 54 percent, 46 percent, and 63 percent positivity, respectively. There was no correlation between c-erbB-2 and steroid receptors. Forty-one percent of cases showed double negativity for steriod receptors (ER-/PR-). No correlation was found between the markers and conventional parameters except for a negative correlation with the tumour grade. The high percentage of c-erbB-2 positivity and the high propotion of steriod receptor negativity suggest a need for studies on adjuvant therapy. Integration of selected markers with conventional parameters could help define sub-groups for treatment and pragnosis (AU)

Adulto , Pessoa de Meia-Idade , Idoso , Feminino , Humanos , Neoplasias da Mama/patologia , Receptores Estrogênicos/análise , Receptores de Progesterona/análise , Receptores de Esteroides/análise , Receptor ErbB-2/diagnóstico , Trinidad e Tobago/etnologia , Imuno-Histoquímica/estatística & dados numéricos , Parafina/diagnóstico , Estudos de Casos e Controles , Biomarcadores Tumorais , Biomarcadores/análise
Cancer Epidemiol Biomarkers Prev ; 4(3): 295-8, Apr.-May 1995.
Artigo em Inglês | MedCarib | ID: med-12300


Neopterin, a marker of cellular immune activation, was elevated in patients who had cervical cancer in previous studies. To examine neopterin in the presence of precursors to cervical cancer (i.e. cervical intraepithelial) we measured serum levels in 185 colposcopy patients in Jamaica, a country with high cervical cancer incidence, and in 72 age-matched Jamaican women selected from a large population-based sample. We also measured serum levels of B-2 microglobulin, another commonly used marker of immune activation. Neopterin and B-2 microglobulin levels were not elevated in colposcopy patients; neither were they rel ted to severity of cervical neoplasia. In multivariable analysis, neither adjustments for detection of cervical human papillomavirus DNA by PCR nor detection of antibodies to human T-cell lymphotropic virus type 1 (a retrovirus endemic to Jamaica) altered our findings. The absence of serologically detectable increase in cellular immune activation linked to cervical intraepithelial neoplasmia does not involve susbtantial systemic immune activation. (AU)

Feminino , Humanos , Neoplasias do Colo do Útero/imunologia , Biomarcadores Tumorais/sangue , Carcinoma in Situ/sangue , Biopterina/análise , Biopterina/sangue , Carcinoma in Situ/patologia , Neoplasias do Colo do Útero/patologia , Colposcopia , Jamaica , Estadiamento de Neoplasias , Imunidade Celular