Results 51 to 60 of about 427 (202)

LA CARRERA DE INGENIERIA TOPOGRAFICA EN LA UNIVERSIDAD DE COSTA RICA: GENESIS Y LA EVOLUCION COMO CARRERA UNIVERSITARIA

open access: yesIngeniería, 2013
La universidad de Costa Rica desde su apertura en 1941, ha ofrecido espacio academico a la topografia inicialmente como cursos de plan de estudios de las carreras de ingenieria y posteriormente como carrera, desde mediados de los sesentas en el nivel ...
Barrantes Aura Adriana Lilliana Guevara
doaj   +1 more source

Hydrostatic pressure activates HIF‐1α via β‐catenin to promote stemness in breast cancer cells

open access: yesFEBS Open Bio, EarlyView.
To mimic the elevated intestinal fluid pressure in breast cancers, we loaded human breast cancer cells (MCF‐7, MDA‐MB‐453, and BT‐474) to 50 mmHg hydrostatic pressure. Hydrostatic pressure exposure upregulated HIF‐1α and induced stemness in MCF‐7 and BT‐474 cells.
Da Zhai   +8 more
wiley   +1 more source

Aquaporin‐3 and aquaporin‐5 impact the development of pancreatic ductal adenocarcinoma spheroids

open access: yesFEBS Open Bio, EarlyView.
Schematic representation of the role of aquaporin‐3 (AQP3) and aquaporin‐5 (AQP5) in pancreatic ductal adenocarcinoma (PDAC). Both proteins are upregulated in PDAC and are associated with tumor progression and metastatic potential. Silencing AQP3 or AQP5 in PDAC spheroids results in decreased diameter, area, and overall growth, underscoring their key ...
Catarina Pimpão   +3 more
wiley   +1 more source

Hyperactive ice‐binding proteins stabilize cell membranes and improve resistance to dehydration stress in Caenorhabditis elegans

open access: yesFEBS Open Bio, EarlyView.
TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose   +9 more
wiley   +1 more source

RELACIÓN DE LAS PROTEÍNAS CON LA CAPACIDAD REGENERATIVA DE SUSPENSIONES CELULARES HOMOGÉNEAS EN CAÑA DE AZÚCAR (Saccharum sp), CULTIVAR CP52-43

open access: yesCultivos Tropicales, 2003
En el trabajo se evalúan las características morfológicas y bioquímicas de suspensiones celulares embriogénicas y no embriogénicas de caña de azúcar (Saccharum sp) de la variedad CP52-43, a partir de callos obtenidos de inflorescencias inmaduras.
María A. Blanco   +6 more
doaj  

Dose‐dependent hepatotoxicity of hydrogen peroxide in HepG2 cells and its modulation by CYP450 induction

open access: yesFEBS Open Bio, EarlyView.
NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks   +4 more
wiley   +1 more source

Identifying and characterising a plant GH1 β‐glucosidase that exhibits hydrolytic activity on N‐linked glucopyranoside

open access: yesFEBS Open Bio, EarlyView.
We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli   +3 more
wiley   +1 more source

Somatic embryogenesis in plantain cultivar 'FHIA - 25' (AAB) from meristem tips

open access: yesRevista Colombiana de Biotecnología, 2015
Plantain cultivar 'FHIA – 25' (AAB) shows high yielding qualities and high resistance to Black Sigatoka disease, but its sugar content in the fruit is low, so a regeneration method at cell level is necessary, such as somatic embryogenesis supported by ...
Dayana Rodríguez González   +8 more
doaj   +1 more source

[Nirmatrelvir/ritonavir drug-drug interactions in primary care outpatients]. [PDF]

open access: yesAn Sist Sanit Navar, 2023
Rodríguez Esquíroz A   +5 more
europepmc   +1 more source

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

open access: yesFEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen   +5 more
wiley   +1 more source

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