Results 121 to 130 of about 109,508 (308)

Subchronic Exposure to Arsenic and Nickel Triggers Nitrosative Stress and Histological Alterations in the Rat Liver

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Environmental exposure to heavy metals poses a threat to human health. Several studies documented harmful effects on the liver after arsenic and nickel exposure at concentrations beyond permissible limits. Nevertheless, the impact of a simultaneous exposure to both elements on hepatic biochemistry and histology remains unelucidated. Therefore,
Thainá Iasbik‐Lima   +4 more
wiley   +1 more source

Photoperiod-Dependent Effects on Blood Biochemical Markers of Phenolic-Enriched Fruit Extracts

open access: yes
Fruits are rich in bioactive compounds, such as (poly)phenols, and their intake is associated with health benefits, although recent animal studies have suggested that the photoperiod of consumption influences their properties.
Morales, Diego   +6 more
core   +1 more source

Effect of different photoperiod regimes in combination with natural and artificial light on nutrient uptake in bok choy (Brassica rapa L.) using an internet of things-based hydroponics system

open access: yesJournal of Agricultural Engineering
In the present study, we analyzed the effect of using a hydroponic system inside a greenhouse and different photoperiod regimes with artificial light on the nutrient uptake of bok choy. Light duration treatment consisting of both sunlight and artificial
Bayu Taruna Widjaja Putra   +2 more
doaj   +1 more source

Acute Modafinil Exposure Induces Neurobehavioral Alterations in Zebrafish: Implications for Off‐Label Cognitive Enhancement

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT Modafinil (2‐(benzhydrylsulfinyl)acetamide) is a psychostimulant commonly prescribed for sleep disorders such as narcolepsy, excessive daytime sleepiness, and obstructive sleep apnea. Recently, its use has extended beyond clinical indications, with neurotypical individuals adopting it as a smart drug to enhance alertness and cognitive ...
Luciane Dellazari da Silva do Prado   +9 more
wiley   +1 more source

Identification of photoperiod as a regulator of dopamine-mediated behavior in female mice

open access: yesNeurobiology of Sleep and Circadian Rhythms
Photoperiod is the primary environmental cue that regulates changes in behavior across seasons. Previously, we have shown that photoperiod has sex-specific effects on synaptic dopamine dynamics in the nucleus accumbens (NAc).
Beimnet B. Kassaye   +4 more
doaj   +1 more source

Effects of Summer Heat Stress on Physiological Parameters and Reproductive Efficiency of Barbarine Ewes Under Natural Outdoor or Indoor Conditions

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Climate change and rising ambient temperatures increasingly challenge sheep production systems in arid and semi‐arid regions, particularly during the summer breeding season. This study evaluated the effects of heat stress and direct solar exposure on physiological responses, metabolic profile, and reproductive performance of Barbarine ewes, a ...
Samia Khnissi   +4 more
wiley   +1 more source

Prolactin and Triiodothyronine Modulate Seasonal Variation in Brown Adipose Tissue in Djungarian Hamsters

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Seasonal photoperiodic cycles regulate energy rheostasis in many animals. Brown adipose tissue (BAT) and the liver are key metabolic organs that show remarkable plasticity in response to photoperiodic conditions. Prolactin (PRL) and thyroid hormones are endocrine signals that transmit neural‐derived photoperiodic time measurement encoding to ...
Sayantan Sur   +5 more
wiley   +1 more source

On seed physiology, biomechanics and plant phenology in Eragrostis tef

open access: yes, 2011
• Key words: Teff (Eragrostis tef (Zuccagni) Trotter), germination, temperature, model, leaf appearance, phyllochron, development rate, lodging, biomechanics, safety factor, flowering, heading, day length, photoperiod. • Background Teff (Eragrostis tef
van Delden, S.H., Delden, S.H., van
core  

Extended photoperiod improves growth and nutritional quality of pak choi under constant daily light integral

open access: yesFrontiers in Plant Science
Introduction and AimThe duration of light exposure each day, termed the photoperiod, is a crucial environmental cue that influence several aspects of plant physiology, including growth, development, and metabolic activity.
Kartika R. Susilo   +5 more
doaj   +1 more source

Disentangling Temporal and Environmental Effects on Hematological Values in Prairie Rattlesnakes (Crotalus viridis)

open access: yesJournal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.
ABSTRACT Hematologic assessment is a common clinical tool used to characterize both individual and population health. In ectothermic organisms, the hematologic response is influenced by external factors such as temperature and season, especially in temperate species. Yet, specific environmental effects have received little direct attention.
Ethan J. Kessler   +4 more
wiley   +1 more source

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