Results 91 to 100 of about 4,474,605 (404)

Multiple-locus heterozygosity, physiology and growth at two different stages in the life cycle of the Chilean oyster Ostrea chilensis [PDF]

open access: yes, 1996
A random sample of 150 individuals of a laboratory-produced cohort of Ostrea chilensis Philippi, 1845 was taken at 10 and 36 mo of age to estimate physiological variables and individual heterozygosity using 4 loci (Lap, Pgi, Pgm and Ca).
Gallegillos, R.   +2 more
core   +2 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

Increased Metabolic Rate in X-linked Hypophosphatemic Mice [PDF]

open access: yes, 1986
Hyp mice are a model for human X-linked hypophosphatemia, the most common form of vitamin D-resistant rickets. It has previously been observed that Hyp mice have a greater food consumption per gram body weight than do normal mice.
Meyer, M. H.   +2 more
core   +1 more source

The key role of nitric oxide in hypoxia: hypoxic vasodilation and energy supply-demand matching [PDF]

open access: yes, 2013
Significance: a mismatch between energy supply and demand induces tissue hypoxia with the potential to cause cell death and organ failure. Whenever arterial oxygen concentration is reduced, increases in blood flow - 'hypoxic vasodilation' - occur in an ...
Alex Dyson   +23 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

Respiratory metabolism in Oreochromis mossambicus, Peters under different environmental conditions [PDF]

open access: yes, 1994
Oxygen consumption in Oreochromis mossambicus, Peters (3-60g in weight) was measured under different stress conditions at a constant temperature of 20±1°C.
Chatterji, A., Rattan, P., Thampi, R.
core  

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

open access: yesFEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Validation of an equation for estimating maximal oxygen consumption of nonexpert adult swimmers

open access: yesOpen Access Journal of Sports Medicine, 2013
Adalberto Veronese da Costa,1,2 Manoel da Cunha Costa,3 Saulo Fernandes Melo de Oliveira,3 Fabíola Lima de Albuquerque,3 Fernando José de Sá Pereira Guimarães,3 Tiago Manuel Barbosa41Department of Physical ...
Veronese da Costa A   +5 more
doaj  

Effects of lead nitrate on oxygen consumption of fresh water prawn, Macrobrachium dayanum (Crustacea - Decapoda)

open access: yesEnvironment Conservation Journal, 2009
Freshwater prawn, Macrobrachium dayanum were subjected to acute concentration, 116.46 mg/l (96 hr LC50 value) and sub-acute concentration, 29.12 mg/l (25% of 96 hr LC50 value) of lead nitrate to evaluate its effects on oxygen consumption.
Kunwer Ji Tiwari   +3 more
doaj   +1 more source

State of gas exchange in recumbent and orthostatic positions and under physical load in healthy persons of varying age, sex and body build [PDF]

open access: yes
Age effect on gas exchange was studied in the recumbent and orthostatic positions and under physical load. In the case of the older age group and for normal as compared with hypersthenic persons, oxygen consumption during rest and during moderate ...
Charyyev, M.   +2 more
core   +1 more source

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