64 articles for “Dose-response”

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Research ArticleOpen accessIn the abstractThe Effect of Acute Administration of Artemisia Persia Extracts on Arterial Blood Pressure and Heart Rate in RatsFarzaneh Esmaeili, Gholamreza Sepehri, Ghollam-Reza Moshtaghi-Kashanian et al.Problem statement: Artemisia Persia (AP) used for its therapeutic effects in folk medicine whiles some species of Artemisia shown a hypotensive effect. To determine the cardiovascular effect of AP, we tested the pharmacological responses of aqueous and methanolic extracts of AP on blood pressure (BP) and Heart Rate (HR) of normotensive and ephedrine induced hypertensive rats using a tail-cuff computerized … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,659 accessesView PDF Cite

Research ArticleOpen accessIn the abstractDengue Virus Infection Induced NF-κB-dependent Macrophage Migration Inhibitory Factor ProductionLien-Cheng Chen, Huey-Wen Shyu, Huan-Yao Lei et al.Dengue virus (DV) infection can cause mild dengue fever or severe dengue hemorrhage fever and dengue shock syndrome. Macrophage migration inhibitory factor (MIF) is a cytokine that plays an important role in the modulation of inflammatory and immune responses and serum levels of MIF are correlated with disease severity in dengue patients. However, the mechanism that induces MIF production during … …American Journal of Infectious Diseases, Vol. 4, Issue 1 · 31 Mar 2008 · 7,293 accessesView PDF Cite

Research ArticleOpen accessIn the abstractMethamphetamine Inhibits β-Chemokines and Co-Stimulatory Molecule Expression by Dendritic CellsMadhavan P.N. Nair, Jose W. Rodriguez, Irina M. Borodowsky et al.The US is currently experiencing a serious epidemic of methamphetamine (Meth) use entangled with HIV-1 infection. Blood monocyte derived dendritic cells (DC ) are the first line of defense against HIV-1 infection and are the initial target of HIV-1 in injection drug users. Chemokines are known to be HIV-1 suppressing molecules and are positively associated with non- progression of HIV … …American Journal of Infectious Diseases, Vol. 3, Issue 4 · 31 Dec 2007 · 6,546 accessesView PDF Cite

Research ArticleOpen accessAll words, across the recordAccumulation and Effect of Manganese on Chloroplasts and Antioxidant Responses in Arabidopsis ThalianaJun Xing, Xue Yang, Cailing YuanIn this study, 5-day-old seedlings of Arabidopsis thaliana were exposed to 0, 0.5, and 1.0 mmol/L MnCl₂ for 6 days by using three independent biological replicates. The results indicated that Mn content in roots exhibited a dose-dependent increase with rising external Mn supply. The elevated Mn levels led to significant reductions in the nutrient content of K, Ca, Na, and … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 2 · 18 Jul 2026 · 836 accessesView PDF Cite