Results 41 to 50 of about 63,636 (293)

Time line of redox events in aging postmitotic cells

open access: yeseLife, 2013
The precise roles that oxidants play in lifespan and aging are still unknown. Here, we report the discovery that chronologically aging yeast cells undergo a sudden redox collapse, which affects over 80% of identified thiol-containing proteins. We present
Nicolas Brandes   +6 more
doaj   +1 more source

Dietary fat supplements influence weight gain and egg production, but not offspring sex ratios in Japanese quail, Coturnix coturnix japonica

open access: yesJournal of Avian Biology, 2023
Sex ratio theory suggests that females should bias offspring sex ratios based on maternal condition and the availability of critical food resources. Work in birds indicates that females do, indeed, bias sex ratios according to maternal condition and food
James Curry   +3 more
doaj   +1 more source

The Nutrition Elite: Do Only the Highest Levels of Caloric Knowledge, Obesity Knowledge, and Motivation Matter in Processing Nutrition Ad Claims and Disclosures? [PDF]

open access: yes, 2009
This study examines the role of the highest levels of caloric knowledge, obesity consequences knowledge, and motivation to search for nutrition information in the processing of relative nutrient content claims in advertisements, such as “half the ...
Andrews, J. Craig   +2 more
core   +2 more sources

IMPDH inhibition enhances cytarabine efficacy in SAMHD1‐expressing leukaemia cells via guanine nucleotide depletion

open access: yesMolecular Oncology, EarlyView.
Cytarabine is a key therapy for acute myeloid leukaemia (AML), but its efficacy is limited by the dNTPase SAMHD1, which hydrolyses its active metabolite. Screening nucleotide biosynthesis inhibitors revealed that IMPDH inhibitors selectively sensitise SAMHD1‐proficient AML cells to cytarabine.
Miriam Yagüe‐Capilla   +9 more
wiley   +1 more source

Oxi-Inflamm-Aging: a New Theory with Practical Implications

open access: yesMedisur, 2016
Oxidative stress causes an impairment of the physiological systems essential for maintaining homeostasis, including the immune system. Immune dysregulation leads to a chronic low-grade inflammatory state in aging. This is the basis of the new integrative
Ángel Julio Romero Cabrera   +1 more
doaj   +2 more sources

Historical analysis of the concept of Heat in Joule`s papers and possible implications for Physical Education

open access: yesInvestigações em Ensino de Ciências, 2017
This paper aimed to carry out an analysis of Joule’s original texts, written in the middle of the XIX century, trying to understand how the changes in heat concept occurred throughout his work. To support the theoretical analysis, a literature review was
Bianca Cintra de Carvalho   +1 more
doaj   +1 more source

Fiber Optic Sensors for Vital Signs Monitoring. A Review of Its Practicality in the Health Field

open access: yesBiosensors, 2021
Vital signs not only reflect essential functions of the human body but also symptoms of a more serious problem within the anatomy; they are well used for physical monitoring, caloric expenditure, and performance before a possible symptom of a massive ...
Christian Perezcampos Mayoral   +10 more
doaj   +1 more source

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

The effects of berry juice on cognitive decline in older adults : a thesis presented in partial fulfilment of the requirements of Master of Arts in Psychology at Massey University, Palmerston North, New Zealand [PDF]

open access: yes, 2005
This study examined the effects of blackcurrant and boysenberry juices on cognitive processes in older adults. Current research suggests that fruits such as these may be able to reverse some of the effects of ageing on cognition.
Holdaway, Melanie Anne
core  

Tuning the caloric response of BaTiO$_3$ by tensile epitaxial strain

open access: yes, 2016
We investigate the effect of epitaxial strain on the electrocaloric effect (ECE) in BaTiO$_3$ by means of ab initio based molecular dynamics simulations. We show that tensile strain can be used to optimize the operation range for ferroic cooling.
Ederer, Claude   +2 more
core   +1 more source

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