Objective : Infertility is the inability of a couple to conceive after one and half year of unprotected sex.Infertility is an inability of a person to reproduce, in its normal state or condition. Male infertility is considered as a major problem all over the world. The aim of this study was to investigate the association of the CYP1A1 polymorphisms with idiopathic non-obstructive azoospermia in...

Background and Aims: The cytochrome P450 1A1 (CYP1A1) plays a curial role in phase I metabolism of polycyclic aromatic hydrocarbons to their ultimate biologically active intermediates that have potential reproductive toxicity in men. Reproductive functions in men may be impaired by many environmental, physiologic, and genetic factors. The majority of the environmental factors are xenobiotics. M...

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...

background: endometriosis is one of the most commonly encountered benign problems in gynaecology. it is frequently associated with chronic pelvic pain, dysmenorrhoea, menorrhagia and dyspareunia, which lead to infertility. we determined the possible association between cyp1a1 mspi and gstm1 null polymorphism in the pathogenesis of endometriosis. materials and methods: ninety seven cases of endo...

background: age-related differences in the ethoxyresorufin o-deethylase (erod) activity of cyp1a1 and its inducibility in rats may determine the toxic potential of acetaminophen.  this study was carried out to compare the effects of acetaminophen (apap) and β-naphthoflavone (βnf) on cyp1a1 activity in young and adult rats. methods: for this purpose, young and adult rats (n = four / group) were...

Lung cancer remains a leading cause of disease globally, with smoking being the largest single cause. Phase I enzymes, including cytochrome P(450), family 1, subfamily A, polypeptide 1 (CYP1A1), are involved in the activation of carcinogens, such as polycyclic aromatic hydrocarbons, to reactive intermediates that are capable of binding covalently to DNA to form DNA adducts, potentially initiati...

The cytochrome P450 (CYP1A1) enzyme metabolically activates many polycyclic aromatic hydrocarbons, including benzo[a]pyrene (BaP), to DNA- and protein-binding intermediates that are associated with toxicity, mutagenesis, and carcinogenesis. As a result, it is widely accepted that CYP1A1 potentiates the toxicity of this class of chemicals. In distinct contrast, we show here that CYP1A1 inducibil...