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Browsing by Subject "Biochemistry & Molecular Biology"

Now showing items 21-40 of 175

Cellular organization and appearance of differentiated structures in developing stages of the parasitic platyhelminth Echinococcus granulosus

Martínez, C; Paredes, R; Stock, RP; Saralegui, A; Andreu, M; Cabezon, C; Ehrlich, R; Galanti, N (2005)

Echinococcus granulosus is the causative agent of hydatidosis, a major zoonoses that affects humans and herbivorous domestic animals. The disease is caused by the pressure exerted on viscera by hydatid cysts that are formed ...
Ceroplastes albolineatus, the first scale insect shown to sequester pyrrolizidine alkaloids from its host-plant Pittocaulon praecox

Loaiza, JCM; Cespedes, CL; Beuerle, T; Theuring, C; Hartmann, T (2007)

The occurrence of pyrrolizidine alkaloids (PAs) in Pittocaulon (ex Senecio) praecox (Asteraceae) a species endemic to Mexico was established. The aboveground plant organs contain the 1,2-saturated monoester 7-angeloyl-di ...
changes in hemolymph glutathione status after variation in photoperiod and light-irradiance in crayfish procambarus clarkii and procambarus digueti

Ricalde-Recchia, I; Duran-Lizarraga, ME; Gonsebatt, ME; Prieto, J; Fanjul, ML (2000)

This work studied the effect of light-stressors, irradiance and photoperiod length on the status of hemolymph glutathione in two species of crayfish, procambarus clarkii and Procambarus digueti, Adult animals of each species ...
Changes in the content of progesterone receptor isoforms and estrogen receptor alpha in the chick brain during embryonic development

Camacho-Arroyo, I; Guerra-Araiza, C; González-Arenas, A; González-Aguero, G; González-Moran, G (2003)

Progesterone and estradiol participate in the regulation of several reproductive functions through interaction with intracellular progesterone receptors (PR) and estrogen receptors (ER), respectively. In this work, we ...
Characterization of a gene similar to BIK1 in the yeast Kluyveromyces lactis

Lamas-Maceiras, M; Cerdan, ME; Lloret, A; Freire-Picos, MA (2004)

In Saccharomyces cerevisiae, Bik1p is a microtubule plus-end-tracking protein that plays several roles in mitosis and ploidy. KIBik1p (from Kluyveromyces lactis) maintains the same structural-domain organization as does ...
Chromatin structure contribution to the synaptonemal complex formation

Hernandez-Hernandez, A; Echeverria, OM; Félix Recillas, T; Vázquez-Nin, Gerardo Hebert (2009)

Meiosis is a key cellular and molecular process for sexual reproduction contributing to the genetic variability of organisms. This process takes place after DNA replication and consists in a double cellular division, giving ...
Circadian oscillations of RPCH gene expression in the eyestalk of the crayfish Cherax quadricarinatus

Martínez-Perez, F; Zinker, S; Aguilar, G; Valdes, J; Arechiga, H (2005)

The RPCH and beta-actin cDNAs from the crayfish Cherax quadricarinatus were amplified, cloned and sequenced. The primary structure sequences of these cDNAs were compared to other members of the AKH/RPCH family. Fluctuations ...
Collagen Biosynthesis and Degratation During Deposit and Resorptive Phases of Carrageenan Granuloma

Figueras, T; Pardo-Cemo, Annie (1986)
comparative chemical composition of agastache mexicana subsp mexicana and a-mexicana subsp xolocotziana

Estrada-Reyes, R; Linares, E; Bye, R; Heinze, G; Martínez-Vazquez, M; Hernández, EA; Hernández, MS; García-Argaez, Aída Nelly (2004)

A comparative chemical analysis of Agastache mexicana subsp. mexicana and A. mexicana subsp. xolocotziana reveals that their methanol extracts constituents were very similar, with acacetin and (2-acetyl)-7-O-glucosyl ...
crayfish procambarus clarkii shows circadian variations in different parameters of the gsh cycle

Duran-Lizarraga, ME; Gonsebatt, ME; Prieto, J; Fanjul, ML (2001)

The present study investigated the rhythmic changes in glutathione status in midgut gland and hemolymph as well as in glutathione reductase (GR) activity in the crayfish Procambarus clarkii. In order to determine the ...
CRYSTALLIZATION AND PRELIMINARY CRYSTALLOGRAPHIC STUDIES OF GLUCOSAMINE-6-PHOSPHATE DEAMINASE FROM ESCHERICHIA-COLI K12

HORJALES, E; CALCAGNO, ML; DAUTER, Z; WILSON, K; GARRATT, RC; OLIVA, G; Altamirano, MM (1992)
Cytochrome f and subunit IV, two essential components of the photosynthetic bf complex typically encoded in the chLoroplast genome, are nucleus-encoded in Euglena gracilis

Torres, JLS; Atteia, A; Claros, MG; González-Halphen, D (2003)

The photosynthetic protist Euglena gracilis contains chLoroplasts surrounded by three membranes which arise from secondary endosymbiosis. The genes petA and petD, encoding cytochrome f and subunit IV of the cytochrome bf ...
Cytotoxic dibromotyrosine-derived metabolites from the sponge Aplysina gerardogreeni

Zubia, E; Ortega, MJ; Carballo, JL; Hernández-Guerrero, CJ (2007)

The chemical study of the sponge Aplysina gerardogreeni collected at the Gulf of California has led to the isolation of four new dibromotyrosine-derived metabolites, aplysinones A-D, whose structures were determined by ...
daily and circadian expression of cryptochrome during the ontogeny of crayfish

Escamilla-Chimal, Elsa; Fanjul, ML (2008)

Cryptochromes (CRY) are proteins with a dual role in the circadian function of different animals, participating in phototransduction and light signaling to the clock and as a transcriptional repressor that provides negative ...
DAILY VARIATIONS OF OXYGEN-CONSUMPTION AND GLUCOSE HEMOLYMPH LEVEL RELATED TO MORPHOPHYSIOLOGICAL AND ECOLOGICAL ADAPTATIONS OF CRUSTACEA

ROSAS, C; ESCOBAR, E; SOTO, L; BOLONGAROCREVENNA, A; Sánchez, A (1992)

1. Daily variations of oxygen consumption and glucose hemolymph level of seven crustacean species from the continental shelf of the NW Gulf of Mexico were related to the morphophysiological (exoskeleton thickness) and ...
Dehydroepiandrosterone inhibits the proliferation and induces the death of HPV-positive and HPV-negative cervical cancer cells through an androgen- and estrogen-receptor independent mechanism

Giron, RA; Montano, LF; Escobar, ML; López-Marure, R (2009)

Dehydroepiandrosterone (DHEA) has a protective role against epithelial-derived carcinomas
DELAYED GAMETOGENESIS AND SPAWNING OF SEA BASS (DICENTRARCHUS-LABRAX L) KEPT UNDER DIFFERENT PHOTOPERIOD AND TEMPERATURE REGIMES

ZANUY, S; CARRILLO, M; RUIZ, F (1986)
Detection of selective cationic amphipatic antibacterial peptides by Hidden Markov models

Polanco, C; Samaniego, JL (2009)

Antibacterial peptides are researched mainly for the potential benefit they have in a variety of socially relevant diseases, used by the host to protect itself from different types of pathogenic bacteria. We used the ...
A dicopper complex with distant metal centers. Structure, magnetic properties, electrochemistry and catecholase activity

Gasque, L; Ugalde-Saldivar, VM; Membrillo, I; Olguin, J; Mijangos, E; Bernes, S; González, I (2008)

The crystal structure and magnetic properties of a dinuclear copper(II) complex of the ligand [2,8-dimethyl-5,11-di-(dimethylethyleneamine) 1,4,5,6,7,10,11,12-octahydroimidazo [4,5-h] imidazo [4,5-c] [1,6]diazecine] dimeim ...
Differential distribution and association of repeat DNA sequences in the lateral element of the synaptonemal complex in rat spermatocytes

Rincon-Arano, H; Recillas-Targa, F; Ortiz, R; Valdes-Quezada, C; Benavente, R; Hernández-Hernández, A; Echeverria-Martínez, OM; Vázquez-Nin, Gerardo Hebert (2008)

The synaptonemal complex (SC) is an evolutionarily conserved structure that mediates synapsis of homologous chromosomes during meiotic prophase I. Previous studies have established that the chromatin of homologous chromosomes ...

Now showing items 21-40 of 175

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