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International Journal of Bioscience and Medicine

International Journal of Bioscience and Medicine, Most Read

Evaluation of the antioxidant activity of extracts obtained from the seaweed Caulerpa taxifolia

Research Article of International Journal of Bioscience and Medicine Evaluation of the antioxidant activity of extracts obtained from the seaweed Caulerpa taxifolia Evandro Valentim da Silva1*, Romário Correia dos Santos2, Jose Ferreira Silva Neto3, George Chaves Jimenez4, Ivone Antônia de Souza5; Fálba Bernadete Ramos dos Anjos6 1Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal de Pernambuco UFPE; 2Graduando do Curso de Odontologia da Universidade Federal de Pernambuco - UFPE. 3Programa de Pós-Graduação em Química Fundamental da Universidade Federal de Pernambuco UFPE; 4Professor de Fisiologia Animal da Universidade Federal Rural de Pernambuco- UFRPE; 5Professora do Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Federal de Pernambuco – UFPE; 6Professora do Departamento de Histologia e Embriologia - UFPE This study aimed to evaluate the antioxidant activity of the extracts of marine seaweed Caulerpa taxifolia by two methods of study of antioxidant activity. The antioxidant activity of the extracts hidroalcolico, methanol and hidroalcolico was evaluated according to Mitsuda (1967). The ability of the extracts to kidnap hydrogen peroxide was determined by Ruch method (1989). The analysis carried out by reading the samples in octoplicata in spectrophotometer, it was possible to calculate the antioxidant and scavenging activities of the extracts hydrogen peroxide. The antioxidant activity presented by the three extracts from C. taxifolia by the ferric thiocyanate method varied each other, showing the methanol extract greater activity than the alcohol and aqueous extracts hydro, may be due to the presence of secondary metabolites like terpenoids. The kidnapper power of hydrogen peroxide of Caulerpa taxifolia strata known significant values when compared to the reference drug. Keywords:Green algae, Ferric thiocyanate, Hydrogen peroxide ...
International Journal of Bioscience and Medicine, Most Read

Computational Fluid Dynamics Simulations of Chimpanzee Nasal Airflow for Different Respiratory Modes

Research Article of International Journal of Bioscience and Medicine Computational Fluid Dynamics Simulations of Chimpanzee Nasal Airflow for Different Respiratory Modes Kaouthar Samarat1*, Sho Hanida2, Shigeru Ishikawa3, Kazunori Kotani4, Teruo Matsuzawa4 1Ishikawa Resin Industry Co., Ltd., Ta 1-8 Utani, Kaga-shi, Ishikawa 922-0312, Japan; 2Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi-shi, Ishikawa 921- 8501, Japan; 3Kanazawa Municipal Hospital, 3-7-3 Heiwamachi, Kanazawa-shi, Ishikawa 921-8105, Japan; 4Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi-shi, Ishikawa 923-1292, Japan In this study, we investigated the airflow and air-conditioning within an anatomically accurate computer model of the nasal airways belonging to a healthy adult chimpanzee. The finite volumes method was used to compute unsteady turbulent flows with physiological flow rates of 2.2 sin (2πt/3.4) [m/s], 1.8 sin (2πt/1.6) [m/s], and 4.4 sin (2πt/1.4) [m/s], mimicking breathing at rest state, shallow breathing under light stress, and a sniffing phase, respectively. Turbulent k-omega model was used to simulate unsteady respiratory phases whereas the turbulent k-epsilon model was used to simulate the sniffing phase. Simulation results argued that assuming a steady laminar inhalation state to investigate the air-conditioning performance within chimpanzee nasal cavity may be exaggerated. The outcomes of this study might potentially contribute in accumulating standardized biological information on healthy chimpanzee, and so increasing the ability to care for it as an endangered species. Keywords: Chimpanzee nasal computer model, Chimpanzee nasal airflow, Computational fluid dynamics, Different breathing modes, Nasal air-conditioning, Turbulent unsteady flow ...
International Journal of Bioscience and Medicine, Most Read

Response surface methodology for the optimization of chlorpyrifos-degrading conditions by Pseudomonas stutzeri ZH-1

Research Article of International Journal of Bioscience and Medicine Response surface methodology for the optimization of chlorpyrifos-degrading conditions by Pseudomonas stutzeri ZH-1 Feng HE 1, Mi-mi ZHANG 2, Li-hong ZHANG1 and Qing-ping HU 1* 1College of Life Science, Shanxi Normal University, Linfen, China 2Modern College of Humanities Sciences, Shanxi Normal University, Linfen, China The removal of pesticides in the environment mainly depends on natural degradation, especially on microbial degradation. Biodegradation has many advantages, such as complete degradation, no secondary pollution, quick effect and wide spectrum. Based on the single-factor experiments and Box-Benhnken design, the effect of four factors on the degradation of chlorpyrifos by P. stutzeri ZH-1 was investigated. The four factors, including temperature (°C) , oscillator speed (rpm), inoculum concentration (%) and pH, and their interactions on the degradation of chlorpyrifos were studied through the use of response surface analysis.The optimal conditions of chlorpyrifos-degrading were as follows: temperature 36.7°C, oscillator speed 130.00rpm, inoculum concentration 7%, pH 7. Under these conditions,the degradation rate of chlorpyrifos was 96.48%. Moreover, P. stutzeri ZH-1 could be used efficiently for remediation of contaminated soils. Keywords: response surface methodology; chlorpyrifos-degrading; Pseudomonas stutzeri ZH-1 ...
International Journal of Bioscience and Medicine, Most Read

Environmental Enrichment in the ISS Rodent Habitat Hardware System

Review Article of International Journal of Bioscience and Medicine Environmental Enrichment in the ISS Rodent Habitat Hardware System Sophie Orr1, Rhonda Weigand2, Tanner Adams2, Raycho Raychev3 & Yuri Griko4 1 University of North Dakota, Grand Forks, ND, USA 2 Redlands Community College, El Reno, OK, USA 3 Space Challenges Program, EnduroSat Inc. Sofia, Bulgaria 4 Division of Space Biosciences, NASA Ames Research Center, Moffett Field, CA, USA Responses of animals exposed to microgravity during in-space experiments were observed via available video recording stored in the NASA Ames Life Sciences Data Archive. These documented observations of animal behavior, as well as the range and level of activities during spaceflight, clearly demonstrate that weightlessness conditions and the extreme novelty of the surroundings exert damaging psychological stresses on the inhabitants. In response to a recognized need for in-flight animals to improve their wellbeing we propose to reduce such stresses by shaping and interrelating structures and surroundings to satisfying vital physiological needs of inhabitants. A Rodent Habitat Hardware System (RHHS) based housing facility incorporating a tubing network system, to maintain and monitor rodent health environment with advanced accessories has been proposed. Placing mice in a tubing-configured environment creates more natural space-restricted nesting environment for rodents, thereby facilitating a more comfortable transition to living in microgravity. A sectional tubing structure of the RHHS environment will be more beneficial under microgravity conditions than the provision of a larger space area that is currently utilized. The new tubing configuration was found suitable for further incorporation of innovative monitoring technology and accessories in the animal holding habitat unit which allow to monitor in real-time monitoring of valuable health related biological parameters under weightlessness environment of spaceflight. Keywords: Environmental Enrichment, ISS Rodent Habitat Hardware System ...

Dr Charles Fokunang
Professor&Director of Student’ Affairs, The University of Bamenda; Department of Pharmacotoxicology and Pharmacokinetics, Faculty of Medicine and Biomedical Sciences, University of Yaoundé 1.

Dr. Moustafa M. Zeitoun
Professor, Department of Animal Production, Faculty of Agriculture, University of Alexandria, El-Shatby, Alexandria, Egypt; Department of Animal Production and Breeding, College of Agriculture and Veterinary Medicine, Qassim University

Dr.Prakash.MMS.Kinthada
Professor, Department Of Chemistry, Sri Vidya Nikethan Engineering College.Tirupathi ,INDIA

Dr Viraj H Mankar
Assistant Professor, Lovely Professional University

Dr Kasim S. Abass
Assistant Professor, College of Nursing, University of Kirkuk

Dr Shriram Kunjam
Assistant Professor, Department of Botany, Government V.Y.T. P.G. Autonomous College

Dr. Mario Bernardo-Filho
Professor Titular, Universidade do Estado do Rio de Janeiro

Dr. Pongsak Rattanachaikunsopon
Associate Professor, Department of Biological Science, Faculty of Science, Ubon Ratchathani University

Dr. Dhananjay Kumar Singh
Molecular Bio-prospection Department, CSIR-CIMAP

Dr Mohammad Hadi Dehghani
Professor, Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences

Dr. Parichat Phumkhachorn
Assistant Professor, Department of Biological Science, Faculty of Science, Ubon Ratchathani University

Dr. Vandna Kukshal
Department of Internal medicine, Washington University School of Medicine

Dr. Ritika Das 
Skirball Institue for Biomolecular Science at NYU Langone Medical Center

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1.Kaouthar Samarat, Sho Hanida, Shigeru Ishikawa, Kazunori Kotani, Teruo Matsuzawa. Computational Fluid Dynamics Simulations of Chimpanzee Nasal Airflow for Different Respiratory Modes. International Journal of Bioscience and Medicine, 2018; 2:8. DOI: 10.28933/ijbm-2018-06-2001.
2.Feng HE, Mi-mi ZHANG, Li-hong ZHANG and Qing-ping HU. Response surface methodology for the optimization of chlorpyrifos-degrading conditions by Pseudomonas stutzeri ZH-1. International Journal of Bioscience and Medicine, 2018; 2:7. DOI: 10.28933/ijbm-2018-01-0801

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Open Access

International Journal of Bioscience and Medicine is a peer reviewed open access journal publishing research manuscripts, review articles, editorials, letters to the editor in Bioscience and Medicine (Indexing information).

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International Journal of Bioscience and Medicine

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