MOTS-c-modified functional self-assembly peptide hydrogels enhance the activity of nucleus pulposus-derived mesenchymal stem cells of intervertebral disc degeneration.

Unlabelled: Intervertebral disc degeneration (IDD) is characterized by oxidative-stress driven progressive apoptosis and senescence of nucleus pulposus mesenchymal stem cells (NP-MSCs). MOTS-c, a 16-amino acid peptide encoded by the mitochondrial 12S rRNA open reading frame, has emerged as a key regulator of cellular metabolism, oxidative stress, and senescence. This study investigated the therapeutic potential of MOTS-c in countering tert-butyl hydroperoxide (TBHP)-induced oxidative damage in NP-MSCs, and we developed a novel biomaterial strategy for IDD treatment.

[Posterior cervical pedicle screw rod short-segment internal fixation for the treatment of atlantoaxial fracture and dislocation].

Objective: To investigate the clinical efficacy of posterior cervical pedicle screw short-segment internal fixation for the treatment of atlantoaxial fracture and dislocation.

Methods: The clinical data of 60 patients with atlantoaxial vertebral fracture and dislocation underwent surgery between January 2015 and January 2018 were retrospectively analyzed. The patients were divided into study group and control group according to different surgical methods.

[Evaluation of percutaneous vertebroplasty of 190 cases].

Objective: To evaluate the therapeutic effect of percutaneous vertebroplasty (PVP) guided by X-ray fluoroscopy in treating osteoporotic spinal compression fractures, hemangioma of vertebra and metastatic carcinoma of vertebra.

Methods: One hundred and ninety patients with 275 diseased vertebra underwent PVP under the guidance of C-arm fluoroscopy (male 80, female 110, ranging in age from 53 to 91 years, with an average of 66 years). Bone marrow biopsy needle was inserted percutaneously via transpedicular way into the diseased vertebra.