Results 41 to 50 of about 1,734 (156)

Purificação e caracterização da VDAC de mitocôndrias corticais aviares: identificação de modificações pós-traducionais nas porinas neuronais murinas e aviares Purification and characterization of avian cortical mitochondrial VDAC: identification of post-translational modifications of rat and avian neuronal porins

open access: yesPesquisa Veterinária Brasileira, 2012
A VDAC é uma porina presente na MME cuja função é crucial no metabolismo energético, sobrevivência e morte celular. A caracterização da VDAC torna-se importante para a compreensão das inter-relações da mitocôndria com os diferentes componentes ...
Phelipe Augusto Mariano Vitale   +4 more
doaj  

Ultrastructural features of Mimulus aurantiacus (Scrophulariaceae) pollen tubes in vivo

open access: yesAnais da Academia Brasileira de Ciências, 2009
The aim of this study is to give information on ultrastructure of in vivo pollen tubes of Mimulus aurantiacus which were collected from the Botanical Garden of the University of California at Berkeley.
Nuran Ekici, Feruzan Dane, Göksel Olgun
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, Volume 600, Issue 16, Page 2262-2282, August 2026.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Biogenêse mitocondrial e exercício físico: hipótese do acoplamento elétrico-transcripcional

open access: yesRevista Brasileira de Educação Física e Esporte : RBEFE, 2015
Resumo Uma das principais modificações ocorridas no organismo em decorrência do treinamento físico-esportivo envolvendo exercícios físicos de longa duração é o aumento na quantidade e qualidade funcional de mitocôndrias do tecido muscular esquelético ...
Benedito PEREIRA
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

open access: yesFEBS Letters, Volume 600, Issue 16, Page 2283-2306, August 2026.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai   +9 more
wiley   +1 more source

Papel del péptido mitocondrial humanina como blanco terapéutico en cáncer y neurodegeneración

open access: yesNOVA, 2019
La humanina es un péptido derivado de la mitocondria con efectos protectores robustos contra una gran variedad de estímulos citotóxicos en diversos tipos celulares.
Antonela Sofía Asad   +7 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, Volume 600, Issue 15, Page 2154-2174, August 2026.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

open access: yesFEBS Letters, Volume 600, Issue 15, Page 2108-2116, August 2026.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez   +2 more
wiley   +1 more source

Fracionamento da mitocôndria

open access: yes, 2008
Apresenta a metodologia de fracionamento dos componentes da mitocôndria por centrifugaçãoComponente Curricular::Educação Superior::Ciências Biológicas::Biologia ...
Fundação Centro de Ciências e Educação Superior a Distância do Estado do Rio de Janeiro (CECIERJ)
core  

The therapeutic opportunities and pitfalls of using iron ion chelators to treat neurodegenerative diseases

open access: yesFEBS Letters, Volume 600, Issue 16, Page 2219-2225, August 2026.
Although too much iron in the brain promotes neurodegeneration, iron ion chelators have had mixed effects in clinical trials. This review explains why; some chelators do not render the iron redox‐inactive (e.g., L1) whereas others do (e.g., desferrioxamine).
Barry Halliwell
wiley   +1 more source

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