Arch Iran Med
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Microvesicles are membranous sac structures released from cell surfaces of many eukaryotic cells. Their presence in the blood and urine also signify their potential use as biomarkers for early detection and diagnosis of different diseases. At present, synthesis and release of these vesicles from mammary tumor cells and their role in disease progression requires further research. ⋯ Microvesicles released from primary cancer cells may carry mRNA, miRNAs, DNA and various proteins. These vesicles may also influence multi drug resistance as observed in breast and leukemia cancer cell lines. A thorough understanding of microvesicles synthesis and their potential implication in metastasis would facilitate the design of novel therapeutic approach for breast cancer.
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The incidence and mortality rates of cancer are increasing worldwide, particularly in the developing countries. Valid data are needed for measuring the cancer burden and making appropriate decisions toward cancer control. We evaluated the completeness of death registry with regard to cancer death in Fars Province, I. R. of Iran. ⋯ The mortality rate of cancer is considerably higher than the rates reported by the routine registry in Iran. Improvement in the validity and completeness of the mortality registry is needed to estimate the true mortality rate caused by cancer in Iran.
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As a polypoid form of capillary hemangioma, lobular capillary hemangioma (LCH) most commonly occurs on the cutaneous and mucosal surfaces and is frequently benign in children. Tracheal LCH is a rare benign tumor in adults, with hemoptysis being one of the most serious forms of presentation. ⋯ We present a case of tracheal LCH and describe its features on computed tomography, pathology, and differential diagnosis. A review of the relevant literature is also provided.
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We aimed herein to assess demographic, etiological, and clinical characteristics of patients presenting to our hospital's emergency department with acute poisoning. ⋯ The majority of poisonings were with prescription drugs, for suicidal purposes, in young age group, and in females. In our study, the three most common agents causing poisoning were antidepressants, analgesics, and other psychotropic substances.
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Previous research has demonstrated diabetic-induced axonal transport deficits. However, the mechanism of axonal transport impairment induced by diabetes is poorly understood. Kinesin motor proteins have been shown to transport various cargos along highly polarized neurons. In the present study, we investigated the effect of regular treadmill exercise on KIF5B and Sunday Driver (SYD) mRNA levels in sensory and motor parts of spinal cord and KIF5B content in sciatic nerves of streptozotocin (STZ)-induced diabetic rats. ⋯ Our results suggest that diabetes seems to change spinal cord KIF5B and SYD mRNA and sciatic nerves KIF5B content and exercise training modifies it, which may be attributable to the training-induced decreased hyperglycemia.