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Biomedical subjects

E Marchán

Publications and source records attributed to E Marchán.

10 recordsLinked to original sources
PubMed2005

[Functional impairment in elderly patients hospitalised in an Internal Medicine unit].

To determine the functional status in elderly patients after a hospitalisation in an Internal Medicine unit. We prospectively studied patients aged 80 or above hospitalised in the Hospital Provincial de Ciudad Real in an Internal Medicine unit, between February and July, 2003. The functional status was determined by Barthel Index. We examined 206 patients (77.4%). They showed a previous Barthel Index of 70.9; one of 48.9 in the hospitalisation stage and one of 58.6 when discharged (p<0.001). We noticed a Barthel Index when discharged which was lower than the previous Barthel one in 73.8% patients. Hospitalisation implies a great functional impairment in the functional status elderly patients. It would be convenient, therefore, to identify the risk factors to be able to set some guidelines for a preventive model.

Activities of Daily Living↗
PubMed2000

[In vitro effect of an alkaloid isolated from Amphimedon viridis (Porifea) on promastigots of Leishmania mexicana].

The dose dependent antiproliferative effect of an alkaloidal substance extracted from the sponge Amphimedon viridis was tested on Leishmania mexicana promastigotes. Sponges were collected in Isla Larga, Venezuela (10 degrees 20' 20" - 10 degrees 24" N, 64 degrees 19' - 64 degrees 22' W), cut and dipped in methanol for vacum filtering extraction every 24 hr. The aqueous extract was separated by chromatography over silica gel. The parasites were from the Venezuelan NR strain. Their growth rate was reduced by 50 % with a dose of 10 microg/ml in 48 hr, whilst concentrations of 30 and 40 microg/ml induce leishmanicidal action after 110 and 20 min, respectively. Lysis is preceded by an immediate increase in cellular volume associated with progressive damage of cellular content and the destruction of organelles. These findings suggest that one important factor associated with the antiproliferative effect of this alkaloidal substance on L. mexicana promastigotes is the loss of the plasma membrane selective permeability.

Alkaloids↗
PubMed1995

[Toxic myopathies related to the administration of hypolipidemic agents: are the drugs the only things responsible?].

The characteristics are reported of five myopathies initially considered toxic in nature caused by the administration of blood lipid lowering agents. In three cases the final diagnosis was hypothyroidism, thus demonstrating the need to rule out the potential causes of secondary dyslipidemia before initiating therapy. Likewise, and because of the rare true muscle involvement from blood lipid lowering agents, it is necessary to investigate those diseases or factors enhancing muscle toxicity when it appears.

Adult↗