Results 21 to 30 of about 3,747,500 (296)

Oxidative stress in physical urticarias

Clinical and Experimental Dermatology, 2001
Abstract The pathogenesis of the physical urticarias has not been completely defined. Indeed, different stimuli can induce similar clinical manifestations, some of which are capable of generating reactive oxygen species. In order to evaluate whether the generation of an oxidative stress response could be a common pathogenetic mechanism ...
S, Briganti, A, Cristaudo, V, D'Argento, N, Cassano, L, Turbino, M, Guarrera, G, Vena, M, Picardo   +7 more
openaire   +2 more sources

The Interaction Between Physical and Psychosocial Stressors

Frontiers in Behavioral Neuroscience, 2020
Do physical and psychosocial stressors interact to increase stress in ways not explainable by the stressors alone? A preliminary study compared participants’ stress response while subjected to a physical stressor (reduced or full physical load) and a ...
Esraa S. Abdelall, Esraa S. Abdelall, Zoe Eagle, Tor Finseth, Ahmad A. Mumani, Ahmad A. Mumani, Zhonglun Wang, Michael C. Dorneich, Richard T. Stone   +8 more
doaj   +1 more source

Physical stress and bacterial colonization [PDF]

FEMS Microbiology Reviews, 2014
Bacterial surface colonizers are subject to a variety of physical stresses. During the colonization of human epithelia such as on the skin or the intestinal mucosa, bacteria mainly have to withstand the mechanical stress of being removed by fluid flow, scraping, or epithelial turnover.
openaire   +2 more sources

Light Intensity and Nitrogen Concentration Impact on the Biomass and Phycoerythrin Production by Porphyridium purpureum

Marine Drugs, 2019
Several factors have the potential to influence microalgae growth. In the present study, nitrogen concentration and light intensity were evaluated in order to obtain high biomass production and high phycoerythrin accumulation from Porphyridium purpureum.
Juan Eduardo Sosa-Hernández, Laura Isabel Rodas-Zuluaga, Carlos Castillo-Zacarías, Magdalena Rostro-Alanís, Reynaldo de la Cruz, Danay Carrillo-Nieves, Carmen Salinas-Salazar, Claudio Fuentes Grunewald, Carole A. Llewellyn, Eugenia J. Olguín, Robert W. Lovitt, Hafiz M. N. Iqbal, Roberto Parra-Saldívar   +12 more
doaj   +1 more source

Assessment of medical risks in airline passengers with recent acute and chronic coronary syndromes

Кардиоваскулярная терапия и профилактика
This review provides a summary of data on the health status of adults with cardiovascular disease during air travel. We describe mental and physical stressors affecting the cardiovascular system and hypobaric hypoxia in the commercial aircraft cabin ...
I. N. Posokhov, E. A. Praskurnichiy
doaj   +1 more source

Resolving Ambiguities in the LF/HF Ratio: LF-HF Scatter Plots for the Categorization of Mental and Physical Stress from HRV

Frontiers in Physiology, 2017
It is generally accepted that the activities of the autonomic nervous system (ANS), which consists of the sympathetic (SNS) and parasympathetic nervous systems (PNS), are reflected in the low- (LF) and high-frequency (HF) bands in heart rate variability (
Wilhelm von Rosenberg, Theerasak Chanwimalueang, Tricia Adjei, Usman Jaffer, Valentin Goverdovsky, Danilo P. Mandic   +5 more
doaj   +1 more source

Stability of Naked Nucleic Acids under Physical Treatment and Powder Formation: Suitability for Development as Dry Powder Formulations for Inhalation

Pharmaceutics, 2023
A number of functional nucleic acids, including plasmid DNA (pDNA) and small interfering RNA (siRNA), have been attracting increasing attention as new therapeutic modalities worldwide.
Tomoyuki Okuda, Maki Okazaki, Akihiko Hayano, Hirokazu Okamoto   +3 more
doaj   +1 more source

Stress - its effects on health and behavior: a guide for practitioners [PDF]

, 2014
KEY POINTS Stress may affect the physical, mental, and social health of an animal. The effect of stressors is individual to the animal concerned and results from the appraisal of the stressor by the animal.
Karagiannis, Christos, Mills, Daniel, Zulch, Helen   +2 more
core   +1 more source

Evaluation of the Effect of Dopamine D2 Receptor Antagonist on the Spermatogenesis Process in Rats Under Physical or Psychological Stress and Their Offspring

Majallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2020
Background and Objectives: Stress disrupts the neurotransmitter release and reproduction. Dopamine (D) is one of the most important neurotransmitters, and its receptor (D2R) has been identified in testis. The use of effective drugs on reproductive system
Shahla Amiri, Farrin Babaei-Balderlou, Gholamreza Najafi   +2 more
doaj  

Models and Methods to Investigate Acute Stress Responses in Cattle

Animals, 2015
There is a growing appreciation within the livestock industry and throughout society that animal stress is an important issue that must be addressed.
Yi Chen, Ryan Arsenault, Scott Napper, Philip Griebel   +3 more
doaj   +1 more source