Multiple Myeloma Rather Than Metastatic Lung Cancer: An Unexpected Cause of Spinal Cord Compression.

Spinal cord compression caused by cancer metastasis is a medical emergency that should be managed positively. Both multiple myeloma and lung cancer can lead to metastatic deposits in the spinal column to induce compression of the spinal cord. However, co-occurring multiple myeloma and lung cancer in a single patient causing spinal cord compression are rarely reported in the literature.

The association of XRCC1 polymorphism with osteosarcoma risk, clinicopathologic features, and prognosis in a Chinese Han population.

Introduction: The association of single-nucleotide polymorphisms at X-ray repair cross-complementing group-1 (XRCC1) with osteosarcoma (OS) development has not been fully clear to date. The aim of the present study is to evaluate the association of XRCC1 polymorphisms with risk, clinicopathologic features, and prognosis in Chinese OS patients.

Methods: A total of 146 patients with primary OS and 248 age- and gender-matched controls were included in the present study.

Spectrophotometric titration of cobalt(II) with CaCl2 in mixed solvents of 2-propanol and water for the analysis of the extraction mechanism of cobalt(II) by salting-out in the presence of CaCl2.

The spectrophotometric titration of cobalt(II) with CaCl2 was carried out in mixed solvents of 2-propanol and water at different solvent compositions of 2-propannol, water and CaCl2 to analyze the salting-out extraction mechanism of Co(II) by the addition of CaCl2 from the mixed solvents. The formation constants of betaCoCl4(2-) = [CoCl4(2-)][Co2+](-1)[Cl-](-4) in both the organic and aqueous phases were determined thorough non-linear regression of the spectrophotometric titration data by a computer program SPECFIT/32. The values of log betaCoCl4(2-) in the aqueous phases were -4.

[Perioperative management of orthopaedic patients with hemophilia A].

Objective: To discuss the perioperative management of hemophiliacs A with orthopaedic complications.

Methods: To regulate the injection of factor VIII concentrate in peroperative period by testing the level of factor VIII:C in 27 cases. The lever of factor VIII:C was improved to 30% - 50% at the day before the operation.