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Salud pública Méx ; 51(2): 134-140, mar.-abr. 2009. ilus, tab
Article in English | LILACS | ID: lil-511425

ABSTRACT

OBJECTIVE: Evaluate the relationships between AgNORs polymorphisms and squamous intraepithelial lesions (SIL) and squamous cell carcinoma (SCC) with HPV infection. MATERIALS AND METHODS: A study was carried out on sixty women from the state of Guerrero, Mexico. HPV detection was performed by PCR. AgNORs were identified by argentic impregnation. One hundred cells per slide were counted and classified according to the polymorphism of AgNORs dots; typical (spherical) and atypical (large, kidney-shaped and clustered). RESULTS: A total of 100 percent of the cases were positive for HPV infection. Nine different high-risk HPV genotypes were found, type16 was the most common (48.6 percent). The AgNORs showed a significant decrease in spherical shape according to neoplastic development. The three atypical shapes showed a significant increase in SIL and SCC (p-trend<0.001). CONCLUSIONS: AgNORs polymorphism rises progressively according to the grade of histological lesions that can be useful as a prognosis for progression of SCC.


OBJETIVO: Evaluar la relación entre los polimorfismos de AgNORs con las lesiones intraepiteliales escamosas (LIE) y carcinoma de células escamosas (CCE). MATERIAL Y MÉTODOS: Se estudiaron sesenta mujeres del estado de Guerrero, México. La detección del VPH fue por PCR y los AgNORs por impregnación argéntica; se contaron 100 células y se clasificaron por tipo de polimorfismo de AgNORs: típico (esférico) y atípicos (largo, forma de riñón o de racimo). RESULTADOS: El 100 por ciento de los casos presentaron infección por VPH, se encontraron nueve genotipos diferentes de VPH de alto riesgo, el 16 fue el más común (48.6 por ciento). La forma esférica de los polimorfismos de AgNORs mostró una disminución con el desarrollo neoplásico y las atípicas incrementaron progresivamente con SIL y SCC (p-tendencia<0.001). CONCLUSIONES: Los polimorfismos AgNORs se incrementan progresivamente con el grado de lesión histológica, y pueden ser útiles en el pronóstico de progresión del carcinoma cervical.


Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Middle Aged , Young Adult , Carcinoma, Squamous Cell/ultrastructure , Nucleolus Organizer Region/ultrastructure , Papillomavirus Infections/pathology , Uterine Cervical Neoplasms/ultrastructure , Uterine Cervicitis/pathology , Alphapapillomavirus/classification , Alphapapillomavirus/genetics , Alphapapillomavirus/isolation & purification , Carcinoma, Squamous Cell/virology , Uterine Cervical Dysplasia/ultrastructure , Uterine Cervical Dysplasia/virology , DNA Probes, HPV , Disease Progression , Genotype , Silver Staining , Uterine Cervical Neoplasms/virology , Uterine Cervicitis/virology , Young Adult
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