Evolutionary trajectory estimation via replication simulation of coronavirus spike gene based on random mutation and similarity-based selection.

Viruses exhibit rapid evolutionary dynamics through random mutations and selection, driving their adaptation and cross-species transmission. To investigate these mechanisms, we designed a simulation framework with a graphical user interface (GUI), implementing random mutation and similarity-based selection. This system models the evolution of a user-supplied viral sequence toward a designated target by recursively selecting the top-N amino acid sequences with the greatest similarity in each replication cycle.

Preoperative Medication for Ovarian Endometrioma Reduces Cyst Size and Pain but Not rASRM Score.

Study Subject: To investigate the impact of preoperative hormonal medication, including combined oral contraceptives or dienogest, on operative findings in ovarian endometrioma surgery.

Design: A single-center, retrospective study.

Setting: Department of Gynecology, Samsung Medical Center, Republic of Korea.

Adverse Effect of the Duration of Antibiotic Use Prior to Immune Checkpoint Inhibitors on the Overall Survival of Patients with Recurrent Gynecologic Malignancies.

Purpose: Antibiotic use preceding immune checkpoint inhibitor (ICI) treatment has been associated with a decreased efficacy of ICI in solid tumors. In this study, we evaluated the effect of antibiotic use before ICI therapy on oncological outcomes.

Methods: We examined patients with recurrent gynecologic malignancies at two academic institutions.

Do the Causes of Spontaneous Preterm Delivery Affect Placental Inflammatory Pathology and Neonatal Outcomes?

Objective: To investigate the severity of histologic chorioamnionitis /funisitis according to the indication for preterm delivery and their corresponding neonatal outcomes. Method: This study included 411 singleton women who delivered between 21+0 and 31+6 week of gestation due to preterm labor (PTL, n = 165), preterm premature rupture of membranes (PPROM, n = 202), or incompetent internal os of the cervix (IIOC, n = 44). The primary outcome measure was the rate of severe histological chorioamnionitis/funisitis.