Results 101 to 110 of about 163,433 (289)

Organic residues - a resource for arable soils [PDF]

open access: yes, 2005
An increased recirculation of urban organic residues to arable soils has several environmental benefits, but there is a need for reliable test systems to ensure that soil quality is maintained.
Odlare, Monica
core  

SIRT4 positively regulates autophagy via ULK1, but independently of HDAC6 and OPA1

open access: yesFEBS Open Bio, EarlyView.
Cells expressing SIRT4 (H161Y), a catalytically inactive mutant of the sirtuin SIRT4, fail to upregulate LC3B‐II and exhibit a reduced autophagic flux under stress conditions. Interestingly, SIRT4(H161Y) promotes phosphorylation of ULK1 at S638 and S758 that are associated with inhibition of autophagy initiation.
Isabell Lehmkuhl   +13 more
wiley   +1 more source

SituResp®: A time- and cost-effective method to assess basal soil respiration in the field

open access: yesApplied Soil Ecology, 2017
Abstract The soil microbial activity is a key parameter in numerous studies aiming to assess soil quality in agricultural plots. Basal Soil Respiration (BSR) has been extensively used as an indicator of this soil microbial activity. However, available methods to measure BSR remain time- and labor- consuming and must be performed in the laboratory ...
Thoumazeau, Alexis   +8 more
openaire   +5 more sources

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

open access: yesFEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid   +3 more
wiley   +1 more source

Bioenergetics Consequences of Mitochondrial Transplantation in Cardiomyocytes. [PDF]

open access: yes, 2020
Background Mitochondrial transplantation has been recently explored for treatment of very ill cardiac patients. However, little is known about the intracellular consequences of mitochondrial transplantation.
Ali Pour, Paria   +2 more
core  

Metformin promotes lifespan through mitohormesis via the peroxiredoxin PRDX-2 [PDF]

open access: yes, 2014
The antiglycemic drug metformin, widely prescribed as first-line treatment of type II diabetes mellitus, has lifespan-extending properties. Precisely how this is achieved remains unclear.
Billen, Johan   +8 more
core   +1 more source

Evaluation of in vitro toxicity of common phytochemicals included in weight loss supplements using 1H NMR spectroscopy

open access: yesFEBS Open Bio, EarlyView.
We investigated the toxicity of 12 active compounds commonly found in herbal weight loss supplements (WLS) using human liver and colon cell models. Epigallocatechin‐3‐gallate was the only compound showing significant toxicity. Metabolic profiling revealed protein degradation, disrupted energy and lipid metabolism suggesting that the inclusion of EGCG ...
Emily C. Davies   +3 more
wiley   +1 more source

[Basal metabolism and external respiration in thyrotoxicosis].

open access: yesVestnik khirurgii imeni I. I. Grekova, 1979
Basal metabolism indices and data on external respiration function in 352 thyrotoxicosis cases are set forth. The significance of the definition of basal metabolism helping to determine the severity of thyrotoxicosis; they serve as objective criteria in the assessment of the effectiveness of the preoperative management.
openaire   +1 more source

Soil respiration in a northeastern US temperate forest: a 22‐year synthesis [PDF]

open access: yes, 2013
To better understand how forest management, phenology, vegetation type, and actual and simulated climatic change affect seasonal and inter‐annual variations in soil respiration (Rs), we analyzed more than 100,000 individual measurements of soil ...
Bowden, R. D.   +20 more
core   +1 more source

Passive Energy Recapture in Jellyfish Contributes to Propulsive Advantage over other Metazoans [PDF]

open access: yes, 2013
Gelatinous zooplankton populations are well known for their ability to take over perturbed ecosystems. The ability of these animals to outcompete and functionally replace fish that exhibit an effective visual predatory mode is counterintuitive because ...
Colin, Sean   +6 more
core   +3 more sources

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