The method described could be applied readily for viral biology studies and incorporated into proactive dengue virologic surveillance. (C) 2010 Elsevier B.V. All rights reserved.”
“BACKGROUND\n\nWe have shown that the ouabain-sensitive alpha 2 Na,K-ATPase is required for adrenocorticotropic hormone (ACTH)-induced hypertension and gestational blood pressure regulation. It is therefore of interest to explore whether this binding site participates in the development of other forms of hypertension, such as deoxycorticosterone
acetate (DOCA)-salt using mutant mice with altered sensitivity to ouabain.\n\nMETHODS\n\nWild-type (alpha 1 ouabain-resistant, alpha 2 ouabain-sensitive: a(R/R)a(S/S)), alpha 1-resistant, alpha 2-resistant (a1(R/R)a2(R/R)) and alpha 2-sensitive, a2-resistant (a1(S/S)a2(R/R)) mice were uninephrectomized and implanted with DOCA pellets. The animals LY2835219 mouse were given either tap water or 1% NaCl, and blood pressure was measured before and after DOCA.\n\nRESULTS\n\nDOCA-salt-treated a1(R/R)a2(R/R)
mice developed hypertension to the same extent as a1(R/R)a2S mice (wild type), and the a1(S/S)a2(R/R) mice given DOCA-salt also showed no difference from the other two genotypes. The expression of the a1 isoform was not changed by DOCA-salt treatment in selleck compound either a1(R/R)a2(S/S) or a1(R/R)a2(R/R) mice. However, the a2 subunit was expressed at substantially higher levels in the hearts of a1(R/R)a2(R/R) than a1(R/R)a2(S/S) mice, regardless of treatment. Plasma levels of ouabain did not change consistently, but those of marinobufagenin
were modestly Selleck MK-5108 higher in DOCA-salt treated mice relatively to those without salt.\n\nCONCLUSIONS\n\nThe ouabain-binding site of either the al or alpha 2 Na,K-ATPase subunit does not play an essential role in the development of DOCA-salt hypertension in this mouse model. These findings indicate that the underlying mechanisms of hypertension induced by DOCA-salt treatment are different from those of ACTH-induced hypertension.”
“Background and purpose: This study was designed to review the diagnostic performance of iodine-123-metaiodobenzylguanidine (MIBG) scintigraphy in differential diagnosis between Parkinson’s disease (PD) and multiple-system atrophy (MSA).\n\nMethods: A comprehensive computer literature search of studies published through March 2011 regarding MIBG scintigraphy in patients with PD and MSA was performed in PubMed/MEDLINE and Embase databases. Only studies in which MIBG scintigraphy was performed for differential diagnosis between PD and MSA were selected. Pooled sensitivity and specificity a MIBG scintigraphy were presented with a 95% confidence interval (Cl). The area under the ROC curve was calculated to measure the accuracy of MIBG scintigraphy in differential diagnosis between PD and MSA.