The aim of this study was to assess whether occupational exposure to chronic low doses of ionizing radiation in nuclear medicine departments may lead to genotoxicity. The alkaline comet assay was selected as a biomarker of exposure to evaluate the levels of primary DNA damage in peripheral blood leukocytes of exposed and corresponding control subjects. Statistically significant differences were...

objective(s):in previous investigations, we have shown para-nonylphenol (p-np) caused significant reduction of proliferation and differentiation of rat bone marrow mesenchymal stem cells (mscs) in vitro. in this study, we first treat the rats with p-np, then carried out the biochemical and morphological studies on mscs. materials and methods: proliferation property of cells was evaluated with t...

INTRODUCTION Glucose is a simple sugar that plays an important role in energy production in biological systems. However, it has been linked to many long-term health problems including the risk of heart disease and stroke, erectile dysfunction in men and pregnancy complications in women, and damage to the kidneys, nerves, eye and vision. Also, the underlying mechanisms of diabetic complications ...

The comet assay is a simple and cost effective technique, commonly used to analyze and quantify DNA damage in individual cells. The versatility of the comet assay allows introduction of various modifications to the basic technique. The difference in the methylation sensitivity of the isoschizomeric restriction enzymes HpaII and MspI are used to demonstrate the ability of the comet assay to meas...

This study was designed to examine the effect of aqueous extract of Crocus sativus stigmas (CSE) and crocin (trans-crocin 4) on methyl methanesulfonate (MMS)-induced DNA damage in multiple mice organs using the comet assay. Adult male NMRI mice in different groups were treated with either physiological saline (10 mL/Kg, intraperitoneal [ip]), CSE (80 mg/Kg, ip), crocin (400 mg/Kg, ip), MMS (120...

Lead plays a significant role in modern industry. This metal is related to a broad range of physiological, biochemical and behavioural dysfunctions. The genotoxic effects of lead have been studied both in animals and humans in in vitro systems but results were contradictory. The aim of this study was to investigate the association between DNA damage and occupational exposure to lead in workers....

Tartrazine is an orange-colored, water soluble powder widely used in food products, drugs and cosmetics. The acceptable daily intake (ADI) oh human is 0-7.5 mg/kg body weight. The objective of our study was to examine the genotoxic effect of different Tartrazine concentrations of fresh whole blood cells; by using alkaline single-cell gel electrophoresis (SCGE), also called the comet assay. This...

Platinum-based chemotherapeutic agents induce the formation of crosslinks in DNA, which are accepted as being responsible for the cytotoxicity of these agents. In this study, we used a modification of the alkaline comet assay for detection of the presence of DNA crosslinks in vitro caused by cisplatin, and in peripheral lymphocytes of patients with non-small cell lung carcinoma undergoing chemo...

normal 0 false false false en-us x-none ar-sa background: more than 100,000 iranian veterans and civilians still suffer from various long-term complications due to their exposure to sulfur mustard (sm) during the iran–iraq war in 1983–88. the aim of the study was to investigate dna damage of sm in veterans who were exposed to sm, 23–27 years prior to this study. materials and methods: blood sam...

background: cadmium (cd) is a heavy metal which is widely spread in our surroundings and has a very strong ability to accumulate in the body organs such as spleen. in this study we aimed to determine the genotoxicity and cytotoxicity effects on mice spleen  treated with cadmium. methods: thirty male mice were enrolled in this study and kept in standard conditions. mice were randomly divided int...