Clinical Significance of Cancer Stem Cell Markers CD133 and CXCR4 in Osteosarcomas.

Objective: Osteosarcomas (OS) is one the most common primary bone malignancy in humans with the lungs metastasis in most cases. Metastasis and recurrence of OS is attributed to cancer stem cells (CSCs). Our study aimed to evaluate the clinical significance of CD133 and C-X-C chemokine receptor type 4 (CXCR4) as the frequently applied markers for CSCs in OS patients.

Retinal anaplastic pleomorphic xanthoastrocytoma unassociated with phakomatosis.

Purpose: To present a rare anaplastic form of retinal pleomorphic xanthoastrocytoma (PXA) unassociated with phakomatosis.

Methods: A 9-year-old girl, presented with a rapidly growing unilateral intraocular white mass unresponsive to intra-arterial chemotherapy, underwent enucleation with the clinical suspicion of retinoblastoma versus malignant astrocytoma.

Results: Histopathology revealed pleomorphic cells with rosenthal fibers, mitosis, and necrosis.

Safety of granulocyte colony-stimulating factor (G-CSF) administration for postrehabilitated motor complete spinal cord injury patients: an open-label, phase I study.

Granulocyte colony-stimulating factor (G-CSF) is a major growth factor in the activation and differentiation of granulocytes. This cytokine has been widely and safely employed in different conditions over many years. In this translational study, G-CSF is administered to 19 patients with chronic motor complete spinal cord injury, and outcomes are reported.

Translation and validation of the EORTC brain cancer module (EORTC QLQ-BN20) for use in Iran.

Background: The aim of this study was to translate the EORTC quality of life questionnaire for brain cancer, the QLQ-BN20, into Persian, and to evaluate its psychometric properties when used among brain cancer patients in Iran.

Methods: A standard backward and forward translation procedure was used to generate the Persian language version of the QLQ-BN20. The QLQ-BN20 was administered together with the QLQ-C30 to 194 patients diagnosed with primary brain cancer.

Misunderstanding prescription physician's oral instructions in patients with low back pain.

Medication errors and adverse drug events can bring about hospitalization, permanent injury, or death. Patients due to lack of adequate understanding of instruction may unintentionally misuse a prescribed medicine. The aims of the study were to examine whether patients with low back pain were correctly able to understand physician's instructions regarding drug use and also to identify influencing factors in patient's misunderstanding.

An overview of pharmacological approaches for management and repair of spinal cord injuries.

Spinal cord injury (SCI) leads to loss of nervous tissue and consequently to catastrophic neurological deficits. Up to now there is no definite treatment available that restores the loss of function to a degree that an independent life can be guaranteed.This justifies the cost of research into the new modalities for a treatment of SCIs.