Results 21 to 30 of about 31,501 (224)

Histiocitosis de células de Langerhans senescentes. Informe de caso

open access: yesActa Pediátrica de México, 2016
Se presenta el caso de un niño con histiocitosis de células de Langerhans que inicialmente se diagnosticó erróneamente y se le trató quirúrgicamente sin la evaluación integra del paciente.
CT Corcuera-Delgado   +3 more
doaj   +1 more source

¿Puede hablar el senescente? Por un envejecimiento tolerable

open access: yesRevista Iberoamericana de Bioética, 2022
El acelerado envejecimiento poblacional ha sido preocupación creciente del mundo contemporáneo, dadas las dificultades económicas y sociales para asegurar la satisfacción de necesidades básicas y de cuidado de los senescentes.
Miguel Kottow Lang
doaj   +1 more source

Variación estacional y potencial enzimático de microhongos asociados con la descomposición de hojarasca de Nothofagus pumilio

open access: yes, 2001
Se estudio la variacion estacional y el potencial enzimatico de microhongos aislados desde el follaje y hojarasca de Nothofagus pumilio sometida a degradacion natural durante 1 ano. La investigacion se realizo en un bosque de N.
E. Valenzuela, S. Leiva, R. Godoy
semanticscholar   +1 more source

Cellular senescence and senolytics: the path to the clinic

open access: yesNature Medicine, 2022
Interlinked and fundamental aging processes appear to be a root-cause contributor to many disorders and diseases. One such process is cellular senescence, which entails a state of cell cycle arrest in response to damaging stimuli.
Selim Chaib, T. Tchkonia, J. Kirkland
semanticscholar   +1 more source

Nitrogen and phosphorus resorption efficiency, and N : P ratios in natural populations of Typha domingensis Pers. in a coastal tropical lagoon

open access: yesActa Limnologica Brasiliensia, 2013
AIM: We studied nitrogen (N) and phosphorus (P) resorption patterns in Typha domingensis Pers. in a tropical coastal lagoon during different seasons of throughout one year.
Bruno dos Santos Esteves   +1 more
doaj   +1 more source

Cellular senescence: the good, the bad and the unknown

open access: yesNature Reviews Nephrology, 2022
Cellular senescence is a ubiquitous process with roles in tissue remodelling, including wound repair and embryogenesis. However, prolonged senescence can be maladaptive, leading to cancer development and age-related diseases. Cellular senescence involves
Weijun Huang   +4 more
semanticscholar   +1 more source

Aspectos fenológicos de Thelypteris interrupta (Willd.). Iwats (Thelypteridaceae) na Floresta Atlântica Nordestina, Paraíba, Brasil.

open access: yesBiotemas, 2011
O presente estudo analisa os aspectos fenológicos de Thelypteris interrupta (Willd.) Iwats ocorrente em um remanescente da Floresta Atlântica nordestina, estado da Paraíba, Brasil.
Rafael de Paiva Farias   +1 more
doaj   +1 more source

Desconforto em calçados segundo a percepção do público idoso feminino

open access: yesModaPalavra e-periódico, 2022
Muitas mulheres idosas apresentam deformações recorrentes nos pés devido à utilização inadequada de calçados e alterações fisiológicas consequentes do envelhecimento.
Ana Cláudia Antunes   +1 more
doaj   +1 more source

Amorphous silica biomineralizations in Schoenoplectus californicus (Cyperaceae): their relation with maturation stage and silica availability Biomineralizaciones de sílice amorfo en Schoenoplectus californicus (Cyperaceae): su relación con el estado...

open access: yesBoletín de la Sociedad Argentina de Botánica, 2013
Summary: The factors involved on the silicification process in Cyperaceae are scarcely known. In this study we analyse the effect of maturation stage and silica availability on the production of amorphous silica biomineralizations in culms of ...
Mariana Fernández Honaine   +3 more
doaj   +1 more source

Mechanisms of Cellular Senescence: Cell Cycle Arrest and Senescence Associated Secretory Phenotype

open access: yesFrontiers in Cell and Developmental Biology, 2021
Cellular senescence is a stable cell cycle arrest that can be triggered in normal cells in response to various intrinsic and extrinsic stimuli, as well as developmental signals.
R. Kumari, P. Jat
semanticscholar   +1 more source

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