BACKGROUND The aim of the study was to test whether the COMT, CYP1A1 and CYP17 genes influence the risk of developing adenomyosis and endometriosis. METHODS We conducted two case-control studies, where the cases (n = 198) had either of the two diseases, and controls (n = 312) were disease-free women. For the COMT gene, we selected the G/A nonsynonymous single-nucleotide polymorphism (SNP) tha...

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...

There is a traditional belief in the Middle East that camel milk may aid in prevention and treatment of numerous cases of cancer yet, the exact mechanism was not investigated. Therefore, we examined the ability of camel milk to modulate the expression of a well-known cancer-activating gene, Cytochrome P450 1a1 (Cyp1a1), and cancer-protective genes, NAD(P)H:quinone oxidoreductase 1 (Nqo1) and gl...

There is an endemic cardiomyopathy currently occurring in China, termed, Keshan disease (KD). The authors previously compared mitochondrial‑associated gene expression profiles of peripheral blood mononuclear cells (PBMCs) derived from KD patients and normal controls, using mitochondria‑focused cDNA microarray technology. The results detected an upregulation of the enzyme‑associated CYP1A1 gene,...

Skatole (3-methylindole) is a product of bacterial fermentation of tryptophan in the intestine. A significant amount of skatole can also be inhaled during cigarette smoking. Skatole is a pulmonary toxin that induces the expression of aryl hydrocarbon receptor (AhR) regulated genes, such as cytochrome P450 1A1 (CYP1A1), in human bronchial cells. The liver has a high metabolic capacity for skatol...

Drug-induced changes in expression of cytochrome (CYP) P450 genes are a key cause of drug-drug interactions. Consequently, preclinical prediction of these changes by novel compounds is an integral component of drug development. To date, in vitro models of CYP induction have used mRNA measurement, immunodetection, and substrate metabolism as reporters. Here, we describe the application of quanti...

Cryopreserved rat hepatocytes entrapped within an alginate matrix, commercially available as Liverbeads, were evaluated for their relevance as a screening tool for gene induction in vitro, using quantitative real-time reverse transcriptase-polymerase chain reaction. They were treated with the reference compounds beta-naphthoflavone (BNF), phenobarbital (PB), pregnenolone 16alpha-carbonitrile (P...

Hypospadias is one of the most common congenital anomalies. Increased exposure to environmental factors (endocrine-disrupting chemicals and smoking) or maternal endogenous estrogen may cause hypospadias because male sexual differentiation is dependent on normal androgen homeostasis. Moreover, interactions between genetic factors and cigarette smoking and other chemicals have been suggested. It ...

Cytochrome P-450 (P450) enzymes in the mucosa of the alimentary tract may be involved in the activation and/or inactivation of ingested xenobiotics and procarcinogens. Since the multiple P450 enzymes have overlapping substrate specificities and, in some cases, similar antigenic determinants, definitive identification of P450 genes that are expressed in various tissues requires molecular analysi...