The correlation between abnormal Krüger strict morphology and the sperm DNA fragmentation index.

Objective: This study aims to investigate whether alterations in sperm DNA fragmentation rates are more frequent when Krüger strict morphology is ≥4% (normal).

Methods: The retrospective study included 132 participants from March 2020 to November 2021. Participants were divided into two groups based on the inclusion criteria: normal and abnormal Krüger strict morphology, with a mean age of 40 years.

Expression of HOXA10 and HOXA11 in the endometrium of infertile patients with chronic endometritis.

Objective: The study aimed to evaluate the impact of CE on the expression of HOXA10 and HOXA11 during the late proliferative phase in the endometrium of infertile women.

Methods: A prospective, translational cohort study was conducted in partnership with the Hospital Universitário Antônio Pedro in Niterói and the Clínica Ginendo in Rio de Janeiro after approval by the Ethics Committee. The patients were selected to participate in the study after showing an indication for hysteroscopy.