Impact of postoperative intraocular pressure elevation on graft endothelial cells in non-preexisting glaucoma eyes undergoing descemet membrane endothelial keratoplasty: a cohort study.

Background: Descemet membrane endothelial keratoplasty (DMEK) has become the dominant keratoplasty procedure. However, the impact of high intraocular pressure (IOP) on the DMEK prognosis in patients without preexisting glaucoma remains unknown.

Methods: Non-glaucoma patients who underwent DMEK in Peking University Third Hospital between July 2017 and March 2023 with a follow-up duration longer than six months were included in this cohort study.

Preoperative Structural Risk Factors for Glaucoma After Penetrating Keratoplasty for Congenital Corneal Opacity: An Observational Study.

Introduction: Post-keratoplasty glaucoma (PKG) is a major complication following penetrating keratoplasty (PKP) for congenital corneal opacity (CCO). This study aims to assess the preoperative structural risk factors for PKG following PKP for CCO using ultrasound biomicroscopy (UBM).

Methods: Pediatric patients with CCO who underwent preoperative UBM and primary PKP were enrolled.

Focus on seed cells: stem cells in 3D bioprinting of corneal grafts.

Corneal opacity is one of the leading causes of severe vision impairment. Corneal transplantation is the dominant therapy for irreversible corneal blindness. However, there is a worldwide shortage of donor grafts and consequently an urgent demand for alternatives.

Lnc-TCL6 is a potential biomarker for early diagnosis and grade in liver-cirrhosis patients.

Background: Long non-coding RNAs (lncRNAs) have been applied as biomarkers in many diseases. However, scarce biomarkers are available in single lncRNA differential expression associated with different clinical stages of liver cirrhosis (LC). The aim of the study is to identify some lncRNAs that can serve as non-invasive sensitive biomarkers for early diagnosis and grade of LC.

MiR-21/RASA1 axis affects malignancy of colon cancer cells via RAS pathways.

Aim: To determine how the oncogene miR-21 regulates the RAS signaling pathways and affects colon cancer cell behaviors.

Methods: RAS p21 GTPase activating protein 1 (RASA1) protein expression in six colon cancer cell lines was assessed by Western blot. Colon cancer RKO cells were chosen for transfection because they are KRAS wild type colon cancer cells whose RASA1 expression is significantly decreased.

Saliva supernatant miR-21: a novel potential biomarker for esophageal cancer detection.

Objective: To identify whether saliva supernatant miR-21 can serve as a novel potential biomarker in patients with esophageal cancer (EC).

Methods: 32 patients with EC and 16 healthy controls were recruited in this study. Total RNA was extracted from saliva supernatant samples for measurement of miR-21 levels using RT-qPCR and relationships between miR-21 levels and clinical characteristics of EC patients were analyzed.