opium/neoplasms

BACKGROUND Laryngeal cancer is the second most common cancer involving the respiratory tract, second only to lung cancer. Previous studies have shown opium dependency to be a possible risk factor for laryngeal cancer. Opium consumption is a major problem in some parts of the world. The aim of this

OBJECTIVE Some epidemiological studies have shown an association between opium consumption and the incidence of gastrointestinal (GI) cancer. The present study was designed to investigate the effects of opium on the initiation of GI cancer in rats. METHODS Forty-five rats were randomly divided into

Previous report of the vast effectiveness of opium derivatives in cancer therapy is leading us to see possible effects of these derivatives on cancer stem cells in order to find new agent for cancer therapy. In this study, cells were stained for CSC markers and sorted by magnetic beads. CSCs exhibit

OBJECTIVE The association between opium use and bladder cancer has been investigated in many studies, with varying reporting results reported. This study aims to estimate the total odds ratio for the association between bladder cancer and opium consumption using meta-analysis. METHODS The study was

OBJECTIVE Many environmental and occupational risk factors have been proposed for bladder cancer, among which opium consumption has been considered in few studies. We designed a study to determine the relationship between opium consumption and bladder cancer. METHODS In a retrospective, case-control

OBJECTIVE We evaluated the relationship between opium consumption and bladder cancer (BC) in a case-control study of an Iranian population. METHODS In a hospital-based case-control study of 179 patients with BC and 179 cancer-free controls frequency-matched by age, sex, and smoking status, we

BACKGROUND Lung cancer is the leading cause of cancer-related death worldwide, and half of all incident lung cancers are believed to occur in the developing countries, including Iran. OBJECTIVE We investigated the association of opium with the risk of lung cancer in a case-control study. METHODS We

OBJECTIVE Lung cancer is the most common malignancy, as well as the leading cause of cancer-related mortality worldwide. Several studies have shown the causative effect of cigarettes smoking in lung cancer, however, the effect of opium consumption has not yet been well studied. This study has been

BACKGROUND Gastrointestinal cancers, including esophageal, gastric, liver and pancreatic are relatively common in Iran. Furthermore, consumption of opium and its derivatives (O&D) are considerable. This study, aimed to examine the association between consumption of O&D and the incidence of upper

Background: In recent years, lung cancer (LC) incidence has increased in Iran. The use of opium and its derivatives (O&D) has increased as well. This study aimed to investigate the association between the use of O&D and LC

OBJECTIVE The aim of this study was to evaluate the role of opium in causing oral cancer. METHODS Eighty patients and 80 selected matched controls who were referred to the ear-nose-throat department of an academic hospital were included in this study between October 2008 and September 2010. In

Substances which are commonly sucked or chewed in two areas where the incidence of oesophageal cancer is high, the Transkei and north-east Iran, were tested in bacterial mutagenicity assays. Pyrolysed substances, opium dross in north-east Iran and tobacco pipe residues in the Transkei, displayed

BACKGROUND Recognition of the predisposing factors of bladder cancer is very important and provides possible prevention measures. The aim of this study was to investigate the types, distribution of bladder tumors and their relationship with opium consumption and smoking in patients who referred to

BACKGROUND Bladder cancer (BC) is the most common genitourinary system malignancy in humans. Consumption of opium and its derivatives, maybe a risk factor possibly in Iran. The aim of this study was to investigate the relationship between consumption of opium and its derivatives and the incidence of