Josephine Aguirre

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Methylmercury (MeHg) inhibits glutamate uptake by astrocytes, which can contribute to neuronal loss through excitotoxicity. We explored the extent at which this phenomenon is involved in MeHg-induced DNA damage in the rat cortex. MeHg amounts that increase extracellular glutamate (1.5, 7.5 and 15 nmol, according to previous reports) were stereotaxically(More)
1. Cortex-free adrenal glands previously labelled with the isotope (45)Ca have been perfused with Locke or modified Locke solution to assess Ca(2+) movements under different conditions.2. Substitution of Na(+) by either sucrose or choline during perfusion with Ca(2+)-free Locke solution induced a significant and sustained decrease in the (45)Ca efflux.(More)
The objective of this study was to compare six samples of Mexican wild common bean (Phaseolus vulgaris L.) against three landraces and three improved cultivars with respect to physical and chemical attributes, and the culinary quality potential of their grain. A completely randomized experimental design was used to characterize the twelve genotypes. Data(More)
OBJECTIVES Notify patients of a potential exposure to hepatitis C virus, coordinate testing, and provide follow-up counseling. METHODS A team was convened to identify various needs in developing a patient care call center. The areas addressed included the following: location, hours, and duration; telephone accessibility; tracking calls and test results;(More)
Bo Abrahamsen Cheryl Ackert-Bicknell Jonathan Adachi John Adams Robert Adler J Aguirre Mohammed Akhter F Albarede Yvonne Alexander Antonios Aliprantis Matthew Allen Tamara Alliston Maria Almeida John Aloia Shreyasee Amin Michael Amling Timothy Arnett Andrew Arnold Hiroshi Asahara Maria-Grazia Ascenzi Per Aspenberg Terry Aspray Gerald Atkins Jane Aubin Peter(More)
1 Bovine adrenal glands were perfused with Ca2+-free Locke solution and catecholamine release was induced either by the introduction of Ca2+, Sr2+ or Ba2+ into the perfusion fluid or by the substitution of Na+ by an osmotically equivalent amount of sucrose. 2 Methoxyverapamil (D600) at a concentration of 3 X 10(-4) M blocked the release of catecholamines in(More)
The delayed-type hypersensitivity (DTH) response and lymphocyte-mediated angiogenesis were determined in mice bearing in vivo cultures of mammary tumor cells in diffusion chambers (DCs). Soluble tumor products which diffuse from the DCs were able to stimulate the immune system for both the DTH reaction and angiogenic activity by spleen cells.