Background About 20 million people worldwide are believed to be using khat. Although some studies reported that khat chewing might result in cardiovascular disorders, conclusive evidence is limited. Method The objective of this review was to synthesize the best available evidence for the effect of khat on the cardiovascular system. Databases searched were PubMed, Cochrane database of systemat...

BACKGROUND Habitual khat chewing is a widespread male habit in Southern Arabia and East Africa. The aim of this study was to assess the effect of Khat chewing on oral hygiene and periodontal health status among Yemeni male khat chewers. MATERIAL AND METHODS This case- control study included 310 khat chewers, aged 20-65 years, and 72 age- and gender- matched non-chewers as controls. Periodonta...

This study assessed the effect of qat chewing on periodontal health, independent of other risk factors. Four hundred qat chewers and 100 nonchewers (20-50 years) were included. Demographic data and detailed information about chewing and smoking were obtained. Periodontal status was assessed using Community Periodontal Index (CPI) and clinical attachment loss (CAL). The qat chewers were older, i...

Background. Khat chewing is a common habit in Yemen despite increased evidence of its negative impact on the cardiovascular system. Aims. We aimed to study the epicardial coronary arteries in khat chewers presenting with myocardial infarction (AMI). Materials and Methods. A descriptive, cross-sectional study was conducted between November 2008 and May 2009 in Yemen. AMI patients who underwent c...

BACKGROUND Chewing betel-nuts (Areca catechu) is carcinogenic but the risk for hepatocellular carcinoma (HCC) and liver cirrhosis (LC) is little considered. Worldwide 600 million people chew betel, including emigrants from palm-growing countries. OBJECTIVE We aimed to assess the relationships and dose-response effects of betel chewing on LC and HCC risks, since habit cessation could reduce th...

Data on risk of metabolic syndrome among various forms tobacco consumption in Myanmar users are currently limited. The present study aimed to determine and compare nicotine metabolites serum cotinine, oxidative stress marker F2-isoprostane adult male users, find out relationships between these parameters syndrome. This cross-sectional was done 30 45 years old males: 84 cigarette smokers, cheroo...

The present study was carried out to assess the cytoplasmic diameter and nuclear diameters of normal buccal mucous membrane in different age groups of khaini chewers. The study group consisted of 105 khaini chewers and 105 age and sex matched controls with no history of tobacco chewing/smoking. They were sub divided into 3 groups each, less than 25 years of age (Group – I), 25 -50 years of age ...

OBJECTIVE This study tested the findings of a prior study indicating a therapeutic relationship between consumption of betel nut and symptoms of schizophrenia. METHOD The subjects were 65 outpatients with diagnoses of schizophrenia or schizoaffective disorder. Symptoms rated with the Positive and Negative Syndrome Scale were compared between high- and low-consumption betel chewers in a repeat...

BACKGROUND Betel nut chewing is related to several kinds of cancer, metabolic syndrome, and type 2 diabetes. Whether it is associated with a greater risk of cardiovascular disease (CVD) and all-cause mortality, however, remains unclear. OBJECTIVE We aimed to investigate the association between betel nut chewing and CVD and all-cause mortality. DESIGN A baseline cohort of 56,116 male partici...

The aim of this study was to evaluate the levels of lipid peroxidation and antioxidants in the erythrocytes of oral cancer patients and tobacco chewers/smokers. 25 patients with biopsy proven oral squamous cell carcinoma(OSCC), 25 cases of tobacco chewers/smokers and 25 age and sex matched healthy control subjects were included in the study. The levels of malondialdehyde (MDA), a lipid peroxida...