116 articles for “urea”

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Research ArticleOpen accessIn the abstractEffect of Heavy Metals on the Enzymatic Activity of Haplic Chernozem under Model Experimental ConditionsNatalia Gromakova, Saglara Mandzhieva, Tatiana Minkina et al.The biological activity of soils is an essential parameter of their ecological status. The anthropogenic Heavy Metals (HMs) disturb the normal functioning of soil biota and, hence, the entire soil system. The aim of this work was to estimate the toxicity of loosely bound HM compounds in Haplic Chernozem using parameters of cellulose-degrading and urease activities. Contamination of Haplic Chernozem … …OnLine Journal of Biological Sciences, Vol. 17, Issue 3 · 23 Jul 2017 · 7,996 accessesView PDF Cite

Research ArticleOpen accessIn the abstractISOLATION AND DETECTION OF HELICOBACTER PYLORI FROM PATIENTS SUFFERING FROM PEPTIC ULCER USING BIOCHEMICAL TESTS AND MOLECULAR TECHNIQUESRuba S. Abu-Sbeih, Azmi D. Hawari, Dhia S. Hassawi, Hala I. Al-DaghistaniHelicobacter pylori is the causative agent of most cases of gastritis. There is no established gold standard for the diagnosis of H. pylori infection. A reliable diagnosis is crucial to confirm that eradication therapy has been successful. Eighty gastric biopsy and blood samples were obtained from fasting Jordanian patients with Esophago-Gastro-Doudenoscopy (EGD). Several diagnosis tests for H. pylori infections were … …American Journal of Biochemistry and Biotechnology, Vol. 10, Issue 1 · 28 Mar 2014 · 8,185 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMutagenic Screening of Crude Oil Fractions Using Modified Ames Test and Allium cepa (Linn) AssayOlufunsho Awodele, Alade Akintonwa, Sunday O. Olayemi et al.Problem statement: Crude oil which may be broadly characterized as paraffinic or naphthenic is a complex mixture of alkanes, cycloalkanes and aromatic hydrocarbons. About 500,000 workers are employed in crude oil exploration and production worldwide. There have been reports of occupational exposure during drilling, pumping and transportation of crude oil, including maintenance of equipment used for these processes. Thus, skin … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 1 · 31 Jan 2010 · 8,633 accessesView PDF Cite

Research ArticleOpen accessIn the abstractAssessment of the Mutagenicity of Some Pharmaceutical EffluentsA. Akintonwa, O. Awodele, A. T. Olofinnade et al.Problem statement: The pharmaceutical industry is a major contributor to industrial wastes globally. Effluents from this industry are usually discharged into the environment and when not properly handled and disposed, they affect both human health and the environment. Approach: This study evaluated the mutagenic potentials of effluents from six pharmaceutical companies in the Lagos province of Nigeria using modified Ames … …American Journal of Pharmacology and Toxicology, Vol. 4, Issue 4 · 31 Dec 2009 · 7,514 accessesView PDF Cite

Research ArticleOpen accessIn the abstractHelicobacter pylori Colonization in Biopsies of the Adenotonsillectomy SpecimensM. J. Zahedi, S. Darvish Moghadam, M. Ahmadi Mosavi et al.Problem statement: Helicobacter pylori (H. pylori) is a microaerophilic, gram negative bacillus, which can cause peptic ulcer and gastric cancer. Recurrent infection with this agent is considered as one of the reasons for failure of peptic ulcer treatment. Some studies have reported colonization of H. pylori in dental plaques, tonsils and adenoid tissues. Therefore oral cavity could be the source … …American Journal of Applied Sciences, Vol. 6, Issue 12 · 31 Dec 2009 · 6,932 accessesView PDF Cite

Research ArticleOpen accessIn the abstractDiagnostic Utility of Nodular Gastritis in Children with Chronic Abdominal Pain Undergoing EndoscopySeddiqe Amini-Ranjbar, Nouzar NakhaeeThis study was aimed to describe the endoscopic picture and laboratory findings in children with chronic abdominal pain and to determine the utility of nodular gastritis in diagnosing HPI in these patients. This prospective study was done between November, 2004 and May, 2007. A total of 70 patients (36 male and 34 female) aged 3-14 years, underwent upper endoscopy. H-pylori … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 2 · 30 Jun 2008 · 8,185 accessesView PDF Cite