Yanjun Ren

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OBJECTIVE This study is to investigate the complications and preventive measures of bone cement in percutaneous kyphoplasty for the treatment of osteoporotic vertebral compression fractures. METHODS A retrospective analysis of 134 cases of osteoporotic vertebral compression fracture patients treated with percutaneous kyphoplasty, which involved 182(More)
This study is to investigate the frequencies of T-helper (Th)22, Th17 and Th1 cells and the levels of related cytokines in subchondral bone marrow in patients with rheumatoid arthritis (RA). Bone marrow and peripheral blood samples were collected from RA, osteoarthritis (OA) patients and healthy controls. The frequencies of Th22, Th17, and Th1 cells were(More)
OBJECTIVES The present study is to investigate the profiles of Th17, Th1 and Treg cells in bone marrow of patients with rheumatoid arthritis (RA). METHODS Flow cytometry was used to analyze the frequencies of Th17, Th1 and Treg cells in paired peripheral blood and bone marrow of 26 RA patients and 11 osteoarthritis (OA) patients, as well as 10 healthy(More)
PURPOSE To analyze the outcomes and incidence of postoperative complications in a large series of patients undergoing LASIK for myopia. METHODS All 5081 patients (10,052 eyes) diagnosed with myopia at The Third Hospital of Handan, China, from September 2003 through March 2005 were studied. All study eyes underwent LASIK with 1-month follow-up. Spherical(More)
Carcinoembryonic antigen related cell adhesion molecule 1 (CEACAM1) is a trans-membrane multifunctional cell adhesion molecule associated with tumor cell proliferation, apoptosis, angiogenesis, invasion, and migration during tumor development. In the present study, we evaluated serum CEACAM1 level in osteosarcoma patients to explore its diagnostic and(More)
This study is to investigate the clinical application of percutaneous vertebral puncture biopsy and MRI in diagnosis of malignant vertebral fractures. A total of 46 patients were enrolled in this study. Percutaneous kyphoplasty was performed for each patient. The coaxial puncture biopsies in broken spines were conducted. The pathological results were(More)
The effects of single nucleotide polymorphisms (SNPs) at APE1 have been investigated in several types of cancer. However, no reports of the association of APE1 polymorphisms with osteosarcoma (OS) have been published. The present study was designed to determine whether APE1 polymorphisms (rs1130409, rs1760944, rs1760941, rs2275008, rs17111750) are(More)
Ankylosing spondylitis (AS) is a chronic inflammatory rheumatic disease strongly associated with HLA-B*27, an major histocompatibility complex (MHC) molecule that presents peptide antigen to T cells. Previously, regulatory B cells were found to suppress T cell-mediated autoimmunity induction and chronic inflammation, partially through interleukin (IL)-10(More)
This study is to investigate the role of three-dimensional image navigation system for surgical treatment of odontoid fracture. A total of 21 patients were enrolled in this study. The anterior cervical hollow screw fixation was performed for treatment of acute odontoid fracture under monitoring of isocentric C-arm three-dimensional navigation system (Iso-C(More)
This study aims to investigate clinical effects of protruding after percutaneous vertebral plasty (PKP holds) for treatment of chronic painful osteoporotic vertebral compression fractures (CPOVCFs), and assess its safety and effectiveness. One hundred and eighteen CPOVCFs patients were included, and analyzed and followed up therapeutic effects of PKP holds.(More)