La adenopatía como clave diagnóstica para la sífilis primaria. Informe de casos / Adenopathy as diagnostic key for primary syphilis. Case reports

Objetivo: Describir tres situaciones clínicas en las que se presentan distintas manifestaciones bucales para una misma entidad patológica. En los tres casos la sospe- cha diagnóstica de sífilis primaria se basó en la presencia de una adenopatía. Los estudios de laboratorio permitieron confirmar el diagnóstico de sífilis. Por su polimorfismo y variabilidad clínica en sus diferentes etapas evolutivas, la sífilis es descripta clásicamente como "la gran simuladora". Este artículo propone que la presencia de adenomegalias características puede ser una clave para orientar el diagnós- tico de la patología, lo cual no ha sido aún reportado en la literatura. Casos clínicos: Se presentan tres casos clínicos de pa- cientes que acudieron a una consulta estomatológica privada y al Servicio de Estomatología del Hospital Alemán de Bue- nos Aires. Los tres acuden con signos y síntomas diferentes, pero compartiendo la presencia de adenopatías múltiples, en las que se destaca un elemento ganglionar más voluminoso (AU)

Aim: To describe three clinical cases that present dif- ferent oral manifestations for the same pathological entity. In all three cases, the suspected diagnosis of primary syph- ilis was based on the presence of an adenopathy. Labora- tory studies confirmed the diagnosis of syphilis. Due to its polymorphism and clinical variability in the different evo- lutionary stages, syphilis is classically described as "the great simulator". This article proposes that the presence of characteristic adenomegalies can be a key to guide the di- agnosis, which has not yet been reported in the literature. Clinical reports: Three clinical cases of patients who attended a private stomatology consultation and the Stoma- tology Service of the Hospital Alemán de Buenos Aires are presented. The three patients showed different signs and symptoms but shared the presence of multiple adenopathies with a more voluminous ganglial element (AU)

Expression of TP0155 mRNA in rabbits with early infection of Treponema pallidum / 中华临床感染病杂志

Objective To investigate the expression of TP 0155 mRNA in rabbits with early infection of Treponema pallidum ( T.pallidum ). Methods Three New Zealand white rabbits were subcutaneously injected with T.pallidum Nichols Seattle strains.Each rabbit was inoculated at ten sites with 106 T.pallidum/site.Skin lesions at the primary stage of syphilis were observed at different time points. Biopsy from one of the lesions was obtained from each rabbit every three days for detection of TP 0155 mRNA and house keeping gene TP 0574 mRNA.TP0155 plasmid standard was constructed by molecular cloning technique , and the quantitative PCR was used to continuously detect the expression of TP 0155 mRNA and TP0574 mRNA from lesion at different time points.Kruskal Wallis test and Bonferroni method were used to analyze the data.Results On d6, red papules appeared on the dorsal skins of rabbits ,there were ulcers in the center of the lesions on d19,presenting typical appearance of syphilis chancre.On d24 the scab of ulcer became smaller; on d25 the rabbits showed disseminated secondary syphilis , which became smaller and disappeared on d30.The copy numbers of TP0155 plasmid standards were 7.48 ×109 copies/μL.There were significant differences in expression of both TP 0155 mRNA and TP0574 mRNA at different time points (χ2 =32.756 and 52.344,both P<0.01).The expression levels of TP0155 mRNA and TP0574 mRNA increased in the early stage, and both reached the peak at d15 (both P<0.05), and then rapidly declined. There were significant differences in normalized TP 0155 mRNA ( TP0155 ×1000/TP0574 mRNA ) at different time points(χ2 =19.758,P<0.05),which reached the peak on d24 and d30,respectively (all P<0.05).Conclusion The level of TP0155 mRNA increases with the disappearance of chancre and secondary syphilis lesions , suggesting that TP0155 might be involved in immune escape of T.pallidum.