[Analysis of delayed infection of proximal junctional zone after posterior spinal internal fixation and its treatment strategy].

Objective: To explore the features and treatment strategy of delayed infection of proximal junctional zone after posterior spinal internal fixation.

Methods: The clinical data of 1325 patients underwent posterior spinal internal fixation were retrospectively analyzed. Delayed infection occurred in 10 patients, among which 4 infections occurred at the proximal junction (non-operative site).

p21 is Responsible for Ionizing Radiation-induced Bypass of Mitosis.

Objective: To explore the role of p21 in ionizing radiation-induced changes in protein levels during the G2/M transition and long-term G2 arrest.

Methods: Protein expression levels were assessed by western blot in the human uveal melanoma 92-1 cells after treatment with ionizing radiation. Depletion of p21 was carried out by employing the siRNA technique.