TY - JOUR
T1 - Genotyping of Chlamydia trachomatis from endocervical specimens of infertile Mexican women
AU - De Jesús De Haro-Cruz, Maria
AU - Deleón-Rodriguez, Irma
AU - Escobedo-Guerra, Marcos R.
AU - López-Hurtado, Marcela
AU - Arteaga-Troncoso, Gabriel
AU - Ortiz-Ibarra, Federico J.
AU - Guerra-Infante, Fernando M.
PY - 2011/2
Y1 - 2011/2
N2 - Introduction: It has been reported in several countries that Chlamydia trachomatis genotypes D, E, and F are the ones more frequently associated with urogenital infections. In Mexico, the prevalence of serovars and genotypes is unknown. Material and Methods: One hundred and fifty-two endocervical swabs were collected from infertile women to test for C. trachomatis. The PCR-based RFLP and automated-sequencing methods of ompA gene was used to identify the C. trachomatis genotypes. Sequences of 891 pb obtained were aligned with currently available chlamydial sequences from GenBank to identify the corresponding genotype. Results: Twenty-four women with infertility (15.8%) were positive for C. trachomatis. According to the RFLP and nucleotide sequences results the most prevalent ompA genotype corresponded to serovar F (n = 13 [54.2%]), followed by serovars E (n = 2 [8.7%]), G (n = 2 [8.7%]), K (n = 2 [8.7%]) and LGV (n = 2 [8.7%]), while serovars D, H and Ia were less prevalent (all n = 1 [4.2%]). None of the patients who were positive to genovar L2 had symptoms of lymphogranuloma venereum (LGV). Nucleotide sequences analysis showed a new genovariant of L2, which was different to L2b to L2f. Mutation points were observed in VS1 domain of Omp A. Conclusions: In this study the most common genotypes were F. Furthermore, the L2 genovariants were demonstrated in infertile women without signs and symptoms of LGV disease. Presence of point mutations in L2 genotype sequences were seen by which there is a need for further research in order to identify new L2 genetic variants that exist in Latin America.
AB - Introduction: It has been reported in several countries that Chlamydia trachomatis genotypes D, E, and F are the ones more frequently associated with urogenital infections. In Mexico, the prevalence of serovars and genotypes is unknown. Material and Methods: One hundred and fifty-two endocervical swabs were collected from infertile women to test for C. trachomatis. The PCR-based RFLP and automated-sequencing methods of ompA gene was used to identify the C. trachomatis genotypes. Sequences of 891 pb obtained were aligned with currently available chlamydial sequences from GenBank to identify the corresponding genotype. Results: Twenty-four women with infertility (15.8%) were positive for C. trachomatis. According to the RFLP and nucleotide sequences results the most prevalent ompA genotype corresponded to serovar F (n = 13 [54.2%]), followed by serovars E (n = 2 [8.7%]), G (n = 2 [8.7%]), K (n = 2 [8.7%]) and LGV (n = 2 [8.7%]), while serovars D, H and Ia were less prevalent (all n = 1 [4.2%]). None of the patients who were positive to genovar L2 had symptoms of lymphogranuloma venereum (LGV). Nucleotide sequences analysis showed a new genovariant of L2, which was different to L2b to L2f. Mutation points were observed in VS1 domain of Omp A. Conclusions: In this study the most common genotypes were F. Furthermore, the L2 genovariants were demonstrated in infertile women without signs and symptoms of LGV disease. Presence of point mutations in L2 genotype sequences were seen by which there is a need for further research in order to identify new L2 genetic variants that exist in Latin America.
KW - Genotypes of Chlamydia trachomatis
KW - Infertility
KW - L2 genovar
KW - Sexual transmitted disease
KW - lymphogranuloma venereum
UR - http://www.scopus.com/inward/record.url?scp=79952425295&partnerID=8YFLogxK
U2 - 10.1016/j.eimc.2010.08.014
DO - 10.1016/j.eimc.2010.08.014
M3 - Artículo
C2 - 21354663
AN - SCOPUS:79952425295
SN - 0213-005X
VL - 29
SP - 102
EP - 108
JO - Enfermedades Infecciosas y Microbiologia Clinica
JF - Enfermedades Infecciosas y Microbiologia Clinica
IS - 2
ER -