Cyclo-oxygenase

Asthma relieved by aspirin and by other cyclo-oxygenase inhibitors.

A 62-year-old man had been well until 10 years previously when he experienced a first attack of dry cough. Coughing continued and four years before admission, after a flu-like illness, attacks of breathlessness and wheezing began to occur. Though treated with bronchodilators and prednisone he noticed that asprin relieved his symptoms and began to take it regularly. The frequency and severity of...

Evaluation of cytotoxicity mechanism of two cyclo-oxygenase-2 inhibitors in leukemia cell line

Introduction: Leukemia is considered one of the main causes of death, and current chemotherapeutic agents are unable to provide optimal responses due to chemo-resistance. Therefore, there is a constant need for new drugs. Cyclooxygenase- 2 (COX-2) inhibitors can be helpful by reducing the necessary dose of routine chemotherapeutic drugs. Herein, we evaluated the cytotoxicity activity as well...

Structure of the human cyclo-oxygenase-2 gene.

Cyclo-oxygenase (Cox), a rate-limiting enzyme in the synthesis of prostanoids, is encoded by two genes, Cox-1 and Cox-2, which are differentially expressed and regulated. Human Cox-1 and -2 polypeptides share 61% primary sequence identity. While the expression of Cox-1 is maximal in quiescent cells. Cox-2 expression is induced by growth factors and cytokines. We have screened a human genomic li...

Induction of cyclo-oxygenase and nitric oxide synthase in inflammation.

Nitric oxide mediated effect of cyclo-oxygenase inhibitors.

OBJECTIVES Non-Steroidal anti-inflammatory drugs (NSAIDS) have long been used as anti-inflammatory agents, yet their mode of action is not entirely clear. The inhibitory effects of NSAIDS on prostaglandin production can only partly explain their anti-inflammatory actions. This study was aimed at defining the role of cycl-oxygenase (COX) inhibitors on nitric oxide (NO) production in murine macro...