نتایج جستجو برای: cancer risk
تعداد نتایج: 1740243 فیلتر نتایج به سال:
background dietary factors such as intake of minerals may play a role in the etiology of esophageal cancer. although it has been hypothesized that manganese can affect the risk of some types ofcancer, its role in esophageal cancer is unknown. the objective of this study was to investigate the association between intakes of manganese with esophageal cancer in golestan cohort study. materials and...
Introduction Artificial and natural radionuclides are found in diverse environmental compartments, such as water, soil, rocks, vegetables, animals, and human body tissues. As such, humans and environments are at constant exposure of these radiation types. In this research investigated specific activities of radionuclide and dose assessment of some species of mushrooms. Materials and Methods In ...
: In this short commentary, we discuss the most important risk factors for liver cancer. One of the most striking risks is infection with hepatitis B and C viruses, leading to chronic hepatitis, which may later develop into hepatocellular carcinoma (HCC). The use of alcohol may lead to cirrhosis, which is scarring the liver, is associated with 30 a more increase in HCC and 10-20 times more incr...
Background and Objective: Breast cancer is one of the most common cancers in women worldwide. This study was conducted to analyze the factors related to survival of patients with breast cancer using two models of Cox proportional specific-cause and sub-distribution models (direct modeling of cumulative incidence). These patients were at the competitive risk of death from breast cancer and also ...
Background: Breast cancer is one of the most common cancers among women worldwide. Tumor protein 53 (TP53) and its regulator the mouse double murine 2 (MDM2) have important roles in tumorigenesis by playing key roles in cell division and response to DNA damage. MDM2 SNP309 T>G (rs2279744) polymorphism in the promoter region of MDM2 gene can cause dysfunction and inactivation of TP53 which promo...
Background: Breast cancer is one of the most important malignancies in both developed and developing countries. Objectives: To reduce the burden of this disease, the prediction of individuals at risk and implementation of efficient preventive interventions can be effective. The present study was aimed at investigating five-year and lifetime risks of the breast cancer in a rural community in Za...
this study was performed to identify endometrial cancer risk factors. in a case series study on 1989-1996 , we assessed endometrial cancer in 52 patients whose age range was 32-80 years, with 73% over fifty years. obesity was seen in 68% at time of cancer detection , and 69% were in the postmenopausal age, with a history of late menopause in 21%. as a matter of parity 13% were nulliparous, and ...
Background: Attempts for early detection of gastric cancer have recently focused on host's genetic susceptibility factors and gene-environment interactions. We have, herein, studied the association of MTHFR C677T single nucleotide polymorphism (SNP) and its interaction with Helicobacter pylori infection, smoking, age and gender on the risk of gastric cancer among an Iranian population. Methods:...
background: cancer is a major public health problem and one of the leading causes of death worldwide. lifestyle factors including dietary patterns are a major determinant of increasing rates of cancer. sugar-sweetened beverages (ssbs) have recently received great attention due to their effects on hyperglycemia, hyperinsulinemia, reduced insulin sensitivity, and obesity as well as their probable...
objective(s):cytochrome p-450 1a1 is an important enzyme in the first phase of the metabolism of some carcinogens such as polycyclic aromatic hydrocarbons (pahs), as well as estrogen. the present study evaluates the existence of cyp1a1 polymorphism in a number of breast cancer samples. materials and methods: one hundred breast cancer patients and the same number of healthy controls were analyze...
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