Results 111 to 120 of about 31,501 (224)

CONCENTRAÇÃO E DISTRIBUIÇÃO DE NUTRIENTES NAS FOLHAS DE ESPÉCIES FLORESTAIS, NA AMAZÔNIA OCIDENTAL

Floresta e Ambiente
RESUMO São apresentados resultados da análise foliar de duas espécies arbóreas nativas (Carapa guianenses e Cedrelinga catenaeformis) e duas exóticas ( Eucalyptus deglupta e Gmelina arbórea ), plantadas na região de Manaus, observando-se a influência da ...
LUÍS MAURO SAMPAIO MAGALHÃES, WINFRIED ERICH HUBER BLUM   +1 more
doaj  

INFLUENCIAS DE LOS TRASTORNOS DEL SUEÑO EN LA CALIDAD DE VIDA DE LOS PACIENTES SENESCENTES

Archivo Médico de Camagüey, 2006
Se realizó un estudio descriptivo con el objetivo de conocer el comportamiento de los trastornos del sueño en pacientes de edad geriátrica, que ingresaron en el Servicio de Geriatría del Hospital "Amalia Simoni Argilagos", de la provincia de Camagüey ...
Rafael Loucraf Hernández, Lisbet Núñez Rodríguez, Onaida Hernández Pupo, Maritza Betancourt Navarro   +3 more
doaj  

Iron Deficiency in Heart Failure with Reduced Ejection Fraction: Pathophysiology, Diagnosis and Treatment. [PDF]

Arq Bras Cardiol, 2022
Pereira GAR, Beck-da-Silva L.
europepmc   +1 more source

Bioadhesive Hydrogel With Polyphenol‐Armored Nanogene Rejuvenates Chondrocyte Senescence for Aged Osteoarthritis Therapy

Advanced Science, EarlyView.
An adhesive hydrogel depot with polyphenol‐armored nanogenes is developed for treating aged osteoarthritis. This system maintains miR‐140 bioactivity, prolongs its intra‐articular retention, and enhances transfection into chondrocytes, leading to the downregulation of senescence‐associated pathways.
Liwei Yan, Runze Yang, Ting Zhou, Tianhao Xu, Yongqi Li, Yuelin Hu, Minghao Ge, Lei Zhang, Xiong Lu, Chaoming Xie, Weili Fu   +10 more
wiley   +1 more source

Integrated Single‐Cell and Spatial Analysis Reveals a Metabolic‐Immune Axis Driving Aortic Dissection

Advanced Science, EarlyView.
Single‐cell and spatial profiling of 110 human thoracic aortic samples reveals a stromal–immune circuit driving aortic dissection. An elastin‐rich fibroblast subset is depleted with age and markedly reduced in disease, weakening aortic wall integrity.
Jing Tao, Huanjie Yang, Jiahui Yong, Xueting Chen, Qiang Zhao, Xueli Wu, Lei Yan, Li Pang, Fan Luo, Mengjun Yu, Shanshan Pan, Deyang Li, Rouxi Chen, Juan Wang, Zhensheng Dong, Fan Yang, Yue Wang, Yang Chen, Hongjian Zheng, Zhimin Yang, Zijie Wang, Karsten Kristiansen, Hui Peng, Xiaodong Fang, Juan Shen, Yining Yang   +25 more
wiley   +1 more source

Light‐Switched Mesenchymal Stem Cells for In Situ Exosome Amplification in Craniofacial Bone Defect Reconstruction

Advanced Science, EarlyView.
Light‐switchable MSCs (MSC‐UCNPs) were constructed by intracellular incorporation of UCNPs. Upon 980 nm irradiation, UCNPs emitted localized ultraviolet light (365 nm), activating the ROS/HEXB/LAMP1 signaling pathway to suppress lysosome–multivesicular body fusion and thereby enhance exosome biogenesis. Embedded within an injectable hydrogel, MSC‐UCNPs
Tingting Wu, Yajing Liu, Shuman Wang, Xiaoming Bai, Luyun Zhang, Yuwei Liu, Zhiwen Fu, Chen Shi   +7 more
wiley   +1 more source

Reabsorção de nutrientes por espécies arbóreas acumuladoras de fósforo na Amazônia: influência na qualidade da serrapilheira.

Revista Brasileira de Agroecologia, 2009
A importância de se conhecer as concentrações e os estoques de nutrientes como o fósforo (P) e o nitrogênio (N) na serrapilheira (liteira) produzida por espécies potencialmente acumuladoras de fósforo em florestas secundárias cujos solos são deficientes
Patricia Chaves de Oliveira, Claudio José Reis de Carvalho   +1 more
doaj  

Comparison of senescence progression in mesenchymal cells from human umbilical cord walls measured by immunofluorescence and flow cytometry of p16 and p21. [PDF]

Einstein (Sao Paulo), 2020
Silva AD, Piccinato CA, Sardinha LR, Sardinha LR, Aloia TPA, Goldberg AC.   +5 more
europepmc   +1 more source

CK2α Deficiency Drives Myocardial Fibrosis via Desmin‐Induced Mitochondrial Dysfunction

Advanced Science, EarlyView.
CK2α preserves mitochondrial homeostasis by phosphorylating Desmin to recruit Cryab, ensuring proper filament assembly. CK2α deficiency disrupts this interaction, causing mitochondrial dysfunction, metabolic shifts, bioenergetic failure, and oxidative stress—ultimately establishing a pro‐fibrotic environment that drives cardiac fibrosis.
Canjie Ma, Jiali Jia, Juncong Lan, Jing Wang, Dan Rao, Lanlan Rao, Weibin Zhang, Dongpeng Wu, Jie Zhang, Gang Wang, Baohua Liu, Ying Ao, Zimei Wang   +12 more
wiley   +1 more source

Efecto cascada en el anciano como consecuencia de la polifarmacia

Medisan
Se realizó un estudio descriptivo, longitudinal y prospectivo de 52 senescentes con efecto cascada resultante de polimedicación, quienes formaban parte de un total de 305 con enfermedades crónicas no transmisibles, pertenecientes todos al Policlínico ...
Leidys Cala Calviño, Sandra Casas Gross, Liam Kadel Dunán Cruz   +2 more
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