419 results for “enzyme”

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Research ArticleOpen accessIn the abstractα-Lipoic Acid Therapy Modulates Serum Levels of Some Trace Elements and Antioxidants in Type 2 Diabetic PatientsSalwa Kamal El-Nabarawy, Mona Abd El-Gelel Mohamed, Mohamed Mahmoud Ahmed, Ghada Hany El-ArabiProblem statement: The metabolism of several trace elements has been reported to alter in diabetes mellitus. The disturbance of their serum levels may have a role in the pathogenesis and progress of this disease. In addition, the reports about the status of antioxidants and antioxidant enzymes in diabetic patients are very contradictory. Though α-Lipoic Acid (LA) has long been touted … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 3 · 30 Sep 2010 · 7,762 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMethamphetamine Regulation of Sulfotransferases in Rat Liver and BrainTianyan Zhou, Chaoqun Huang, Yue Chen et al.Problem statement: Sulfotransferases (SULTs) are important phase II drug metabolizing enzymes. They also regulate the biological activities of various hormones. To the best of our knowledge, psychostimulants regulation of SULTs is basically not studied except one article reported that Methamphetamine (METH) treatment induced rat amygdale rSULT1A1 mRNA 4.3 fold by using microarray method to identify a series of candidate genes … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 3 · 30 Sep 2010 · 7,683 accessesView PDF Cite

Research ArticleOpen accessIn the abstractHepatotoxicity Due to Histamine Trifluoro-Methyl Toluidide, Amthamine, R-(-)-α-Methyl Histamine and Clobenpropit (H1R-H4R-Agonists, Respectively) in Rabbit Experimental ModelTrivendra Tripathi, Aijaz Ahmed Khan, Mohammad Shahid et al.Problem statement: Since in vivo studies looking for toxicological impact of histamine receptors-agonists in experimental models are fragmentary, the present study was designed to delineate the histopathological and biochemical changes in livers of rabbits treated with histamine receptors (H1R-H4R)-agonists. Approach: The cohort comprised of six groups (Group I control and Group II-VI treated) containing five rabbits each. Control-group received vehicle … …Current Research in Medicine, Vol. 1, Issue 1 · 30 Jun 2010 · 8,899 accessesView PDF Cite

Research ArticleOpen accessIn the abstractCardiac Depression Produced by L-Arginine and Phosphodiestrase Inhibitor on Isolated Mammalian Rabbit Heart: Function of Cyclic Guanosine Monophosphate (cGMP)Hussein F. Sakr, Fahaid Al-Hashem, Mahmoud Al-Khateeb et al.Problem statement: Cyclic guanosine 3',5'-monophosphate cGMP is one the important second messengers that determines the cardiomyocyte activity and its role in healthy and diseased cardiac muscle is still controversial. We are reporting the effect of adding L-arginine, the NO donor that stimulates cGMP production and Sildenafil citrate (phosphodiestrase inhibitor) that inhibits cGMP hydrolyis on isolated rabbit’s heart to answer: Is … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 2 · 30 Jun 2010 · 8,182 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffect of Maturity Stage of Papaya Maradol on Physiological and Biochemical ParametersLaura E. Gayosso-García Sancho, Elhadi M. Yahia, Miguel Angel Martínez-Téllez, Gustavo Adolfo González-AguilarProblem statement: Nowadays, the worldwide increase in diseases has motivated consumers to increase the intake of fruits and vegetables, in response to various research reports indicating that fruits and vegetables can help prevent certain types of illnesses, due to their potentially high antioxidant properties. We evaluated the effect of the stage of ripeness of papaya fruit (Carica papaya L.) on … …American Journal of Agricultural and Biological Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 11,266 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEvaluation of the Toxic Effects of Dihydroartemisinin on the Vital Organs of Wistar Albino RatsA. U. Utoh-Nedosa, P. A. Akah, T. C. Okoye, C. O. OkoliProblem statement: The current surge in the use of Artemisinin based Combination Therapy (ACT) in the treatment of falciparium resistant malaria in the tropics and the potentials of Dihydroartemisinin (DHA), a member of the artemisinin family, to produce toxic effect in the vital organs (such as the liver, heart, lungs, intestine, spleen kidney and blood cells) necessitated this research. Approach: … …American Journal of Pharmacology and Toxicology, Vol. 4, Issue 4 · 31 Dec 2009 · 9,181 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffect of Delaying Sporulation by Addition of Ammonium Sulphate on the Fermentation of Palm Kernal Cake Based Substrate by Aspergillus nigerK. H. Swe, A. R. Alimon, M. RaminProblem statement: Asexual sporulation is a common reproductive mode for a diverse group of fungi and the ultimate limiting factor in fungal biomass production. Approach: Delaying sporulation may increase the biomass in terms of mycelial production and the same time increase production of enzymes. Results: In order to delay the sporulation different levels of ammonium sulphate (10, 12 and 14%) … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 4 · 31 Dec 2009 · 8,399 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMolecular Characterization of Pseudomonas aeruginosa UPM P3 from Oil Palm RhizosphereBadri Fariman Azadeh, Sariah MeonProblem statement: Pseudomonas aeruginosa has been used in agriculture as biological agents. It has shown substantial control of a variety of soil-borne plant pathogens including Macrophomina phaseolina, Botrytis cinerea, Rhizoctonia solani, Colletotrichum truncatum, Pythium, Fusarium and others. Species aggregate of Pseudomonas aeruginosa strain UPM P3 was shown to have potential as a biocontrol agent against Ganoderma boninense, the causal agent … …American Journal of Applied Sciences, Vol. 6, Issue 11 · 30 Nov 2009 · 7,802 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMortality among HIV-Infected Patients in Resource Limited Settings: A Case Controlled Analysis of Inpatients at a Community Care CenterNirmala Rajagopalan, Joyce B. Suchitra, Anita Shet et al.Problem statement: Despite massive national efforts to scale up Antiretroviral Therapy (ART) access in India since 2004, the AIDS death rate was 17.2 per 100,000 persons during 2003-2005. In the era of HAART in resource poor settings, it is imperative to understand and address the causes of AIDS related mortality. This collaborative study aimed at defining the predictors of mortality … …American Journal of Infectious Diseases, Vol. 5, Issue 3 · 30 Sep 2009 · 7,661 accessesView PDF Cite

Research ArticleOpen accessIn the abstractPorcine Brain Extract Attenuates Memory Impairments Induced by Focal Cerebral IschemiaJinatta Jittiwat, Jintanaporn Wattanathorn, Terdthai Tongun et al.Problem statement: Stroke or cerebral ischemia has been recognized as one important problem worldwide. To date, the effectiveness of protective and therapeutic strategies against stroke is still very limited. Therefore, the development of novel strategy is required. Porcine brain is traditional believed to improve brain functions. Recent studies showed that the extract of porcine brain could protect against brain damage … …American Journal of Applied Sciences, Vol. 6, Issue 9 · 30 Sep 2009 · 14,615 accessesView PDF Cite