Unilateral Choanal Atresia in a Child With Prolonged Nasal Congestion.

Choanal atresia obstructs the nasal passage due to abnormal bony or soft tissue remnants owing to the faulty canalization of the nasal passages during fetal development. The clinical manifestations are more pronounced in bilateral cases, often presenting immediately after birth with cyanosis turning pink when crying, as newborns are obligatory nasal breathers. This contrasts in unilateral cases, where the condition may present with mild symptoms and be diagnosed later in life.

Regulation of basal autophagy by calmodulin availability.

Macroautophagy (hereafter autophagy) is a process that degrades cellular components to maintain homeostasis. The Ca sensor calmodulin (CaM) regulates numerous cell functions but is a limiting factor due to its insufficient availability for all target proteins. However, evidence that CaM availability regulates basal autophagy is lacking.

First Reported Case of Donor Related Candida Endophthalmitis after Descemet Membrane Endothelial Keratoplasty.

Purpose: To report the first case of Candida donor to host transmission following descemet membrane endothelial keratoplasty (DMEK).

Methods: A retrospective case report.

Results: A patient underwent uneventful DMEK.