Facultad de Ciencias Químicas y Farmacéuticas: Recent submissions

Now showing items 4401-4420 of 5193

    • Effects of antihypertensive treatment on cardiac IGF-1 during prevention of ventricular hypertrophy in the rat 
      Jalil Milad, Jorge; Ebensperger González, Roberto; Meléndez Vergara, Jaime; Acevedo, E.; Sapag Hagar, Mario; González Jara, Fabián Rodrigo; Gálvez, Anita; Pérez Montes, Viviana; Lavandero González, Sergio (PERGAMON-ELSEVIER SCIENCE LTD, 1999-03-26)
      There is some evidence that cardiac rather than circulating insulin-like growth factor-1 (IGF-1) levels contribute to the development of renovascular hypertensive left ventricular hypertrophy (LVH), remaining unknown the ...
    • Prevención precoz de hipertrofia ventricular izquierda en la hipertensión experimental y concentraciones ... 
      Gálvez, Anita; Ocaranza, María Paz; Lavandero González, Sergio; Jalil Milad, Jorge (Sociedad Española de Cardiología, 2001)
      En este modelo experimental de HVI hipertensiva mixta existe una activación temprana de la ECA plasmática y cardíaca. La administración precoz de un IECA previene el desarrollo de hipertensión e HVI al inhibir el aumento ...
    • Isoenzyme multiplicity and characterization of recombinant manganese peroxidases from Ceriporiopsis ... 
      Larrondo, L. F.; Lobos, S.; Stewart, P.; Cullen, D.; Vicuña E., Rafael (AMER SOC MICROBIOLOGY, 2001-05)
      We expressed cDNAs coding for manganese peroxidases (MnPs! from the basidiomycetes Ceriporiopsis subvermispora (MnP1) and Phanerochaete chrysosporium (H4) under control of the alpha -amylase promoter from. Aspergillus ...
    • Enzymology and molecular genetics of the ligninolytic system of the basidiomycete Ceriporiopsis subvermispora 
      Lobos, S.; Tello, Mario; Polanco, R.; Larrondo, L. F.; Manubens, Augusto; Salas, L.; Vicuña E., Rafael (CURRENT SCIENCE ASSN, 2001-10-25)
      Lignin, the most abundant renewable source of aromatic carbon on earth, consists in a highly irregular three-dimensional biopolymer of oxygenated phenylpropanoid units. In natural environments, lignin is only degraded ...
    • An increased intraovarian synthesis of nerve growth factor and its low affinity receptor is a principal ... 
      Lara Peñaloza, Hernán; Dissen, G. A.; Leyton Canales, Víctor; Paredes Vargas, Alfonso; Fuenzalida Cruz, Héctor; Fiedler Temer, Jenny; Ojeda, Sergio R. (ENDOCRINE SOC, 2000-03)
      A form of polycystic ovary (PCO) resembling some aspects of the human PCO syndrome can be induced in rats by a single injection of estradiol valerate (EV). An increase in sympathetic outflow to the ovary precedes, by several ...
    • Synthesis and magnetic investigations on rare-earth-containing liquid crystals with large magnetic anisotropy 
      Galyametdinov, Y.; Athanassopoulou, M. A.; Griesar, K.; Kharitonova, O.; Soto Bustamante, Eduardo; Tinchurina, L.; Ovchinnikov, I.; Haase, W. (AMER CHEMICAL SOC, 1996-04)
      A new series of liquid-crystalline Schiff base lanthanide compounds of the general formula (L''H)(2)L''MX(2) was prepared (L''H = H2n+1CnOC6H3(OH)CHNCmH2m+1; n = 7, 12; m = 14, 18; M = La, Tb, Dy, Er, Nd, Ho, Eu, Pr, and ...
    • Multiple calcium pathways induce the expression of SNAP-25 protein in chromaffin cells 
      García Palomero, E.; Montiel, C.; Herrero, C. J.; García, A. G.; Alvarez, R. M.; Arnalich, F. M.; Renart, J.; Lara Peñaloza, Hernán; Cárdenas, A. M. (LIPPINCOTT WILLIAMS & WILKINS, 2000-03)
      Incubation of bovine adrenal chromaffin cells in high K+ (38 mM) during 24-48 h enhanced 2.5 to five times the expression of SNAP-25 protein and mRNA, respectively. This increase was reduced 86% by furnidipine 9(an L-type ...
    • Solvent effect on the sensitized photooxygenation of 2,3-dihydropyrazine derivatives 
      Lemp Miranda, Else; Zanocco Loyola, Antonio; Günther Sapunar, Germán; Pizarro, Nancy (AMER CHEMICAL SOC, 2003-04-18)
      Detection Of O-2((1)Delta(g),) phosphorescence emission, lambda(max) = 1270 nm, following laser excitation and steady-state methods was employed to determine the total rate constant, k(T), and the chemical reaction rate ...
    • Structural changes in DODAC unilamellar liposomes by addition of sucrose esters monitored by using fluorescent ... 
      Lemp Miranda, Else; Zanocco Loyola, Antonio; Günther Sapunar, Germán (ELSEVIER SCIENCE BV, 2003-11-24)
      The effect of the incorporation of the non-ionic surfactant sucrose palmitate in dioctadecyldimethylammonium chloride(DODAC) large unilamellar vesicles was studies by using several spectroscopic techniques. Significant ...
    • 14-helical folding in a cyclobutane-containing beta-tetrapeptide 
      Izquierdo, S.; Kogan Bocian, Marcelo; Parella, T.; Moglioni, A. G.; Branchadell, V.; Giralt, Ernest; Ortuño, R. M. (AMER CHEMICAL SOC, 2004-07-23)
      The efficient synthesis of tetrapeptide 5 containing, in alternation, cyclobutane and beta-alanine residues is described. NMR experiments both at low temperature in CDCl3 and at 298 K in DMSOd(6) solutions show the ...
    • Thyrotropin-releasing hormone as a mediator of the central autonomic pathway controlling ovarian function 
      Luza Cornejo, Sandra Magali; Arancibia, S.; Venegas Santos, Mauricio; Lara Peñaloza, Hernán (KARGER, 2003-04)
      We studied the effect of thyrotropin-releasing hormone (TRH) applied centrally on the sympathetic activity of the ovary in female rats. Intracerebroventricular (i.c.v.) administration of a dose of 25 ng/kg weight produced ...
    • Colubrinic acid isolated from a pharmacological active extract of Trevoa trinervis Miers 
      Erazo, Silvia; Backhouse Erazo, Nadine; Delporte Vergara, Carla; Negrete Córdova, Rosa; Muñoz Muñoz, Orlando; López Pérez, J. L.; San Feliciano, Arturo (Sociedad Chilena de Química, 1998)
      From Trevoa trinervis Miers (Rhammnaceae), a plant used in Chilean folklore medicine, a triterpenoid called colubrinic acid, has been isolated from a pharmacological active extract. Its structure has been established by ...
    • Bakuchiol and other compounds from Psoralea glandulosa 
      Erazo, Silvia; García, R.; Delle Monache, E. M. (México Federación Latinoamericana de Química, 1990)
      The leaves of P. glandulosa contain the active meroterpenoid bakuchiol, as well as angelicin, psoralen and a new cinnamic derivative.
    • Ensayos farmacognósticos de tres compuestas usadas en medicina popular en Chile Central 
      Latorre, I.; Peña, Raúl C.; Erazo, Silvia (Real Academia de Farmacia, 1990)
      Se realiza un estudio de tres especies de la familia Compositae, incluyendo características morfológicas y muestreo fitoquímico de cada una de ellas. El material fue recolectado en Santiago (Región Metropolitana); las ...
    • 3-α -(2-O-β-D-glucopiranosil)-D-glucofuranoside della quercetina: nuovo glucoside flavonico della Vestia lycioides 
      Erazo, Silvia; Galeffi, Corrado; Ciasca Rendina, M. A.; Delle Monache, E. M. (Istituto Superiore de Sanitá, 1971)
      (Quercetin-3-α-(2-0-β-D-glucopyranosyl)-D-glucofuraanoside, a new glycoside of Vestia lycioides). A new flavonol glycoside, the quercetin-3-α-(2-0-β-D-glucopyranosyl)-D-glucofuranoside, has been isolated from the leaves ...
    • A new alkaloid of Strychnos. The ocurrence of 11-methoxy-diaboline in Strychnos romeu-belenii Krukoff and Barneby 
      Marini-Bettòlo, G. B.; Delle Monache, E. M.; Erazo, Silvia; Galeffi, Corrado (Societá Chimica Italiana, 1971)
      From the stem bark of Strychnos romeu-belenii Krukoff and Barneby, a Longaniacea of South America, a new indolinic alkaloid has been isolated to which the structure of 11-,11-methoxy-diaboline(I) has been assigned on the ...
    • Especies autóctonas chilenas usadas en medicina popular 
      Erazo, Silvia; García, R.; Latorre, I. (Real Academia de Farmacia, 1987)
      Se investiga en diez plantas chilenas, usadas en medicina popular, la presencia de triterpenos y/o esteroles, alcaloides, antraquinonas, flavonoides, cumarinas, compuestos fenólicos y saponinas. Se identifican β-sitosterol, ...
    • Metabolitos secundarios en Adiantum thalictroides Willd. Ex. Schlecht var. Hirsutum (Hook.et Grev.) de la Sota 
      Erazo, Silvia; García, R.; Méndez, F.; Latorre, I.; Negrete Córdova, Rosa (México Federación Latinoamericana de Química, 1991)
      The nor-triterpene Adiantone(22-oxo-21-β-H-hopane),β-sitosterol, psoralene and methyl-p-coumarate were isolated from Adiantum thalictroides var. hirsutum (Culantrillo), a fern used in folk medicine as emmenagoge and expectorant.
    • Acción antimicótica de extractos de Allium sativum 
      García, R.; Erazo, Silvia; Lemus Gutiérrez, Igor; Donoso, Rafael; Pivet, Hilda; Lazo Araya, Waldo; Ferrada, Luis (Escuela de Medicina, Facultad de Medicina, Universidad de Valparaíso, 1987)
      Se realizó un estudio fitomicrobiológico con extractos de Allium sativum (ajo). se identificó en el extracto el principio activo alicina. Se estudió su acción antimicótica frente a varias cepas de Aspergillus fumigatus, ...
    • Évaluation des propriétès humectantes de l' Aloè Perryi Baker 
      Erazo, Silvia; Lemus Gutiérrez, Igor; García, R. (Cêntre d'Etude des Plantes Médicinales, 1985)
      Evaluation of the humectant properties in a group of femenine volunteers was made with characterization of the gel contained in the leaves of the Aloè barbadensis Miller gel (Aloè vera Liné)