نتایج جستجو برای: environmental stress

تعداد نتایج: 788387  

2011
Shelly Inbar Elad Neeman Roi Avraham Marganit Benish Ella Rosenne Shamgar Ben-Eliyahu

In leukemia patients, stress and anxiety were suggested to predict poorer prognosis. Oncological patients experience ample physiological and psychological stress, potentially leading to increased secretion of stress factors, including epinephrine, corticosteroids, and prostaglandins. Here we tested whether environmental stress and these stress factors impact survival of leukemia-challenged rats...

Journal: :The Plant cell 2010
Jian-Xiang Liu Stephen H Howell

The endoplasmic reticulum (ER) has a sophisticated quality control (QC) system to eliminate improperly folded proteins from the secretory pathway. Given that protein folding is such a fastidious process and subject to adverse environmental conditions, the ER QC system appears to have been usurped to serve as an environmental sensor and responder in plants. Under stressful conditions, the ER pro...

2014
Tetsushi HIRANO Yoshihiro KOBAYASHI Takuya OMOTEHARA Atsutoshi TATSUMI Rie HASHIMOTO Yuria UMEMURA Daichi NAGAHARA Youhei MANTANI Toshifumi YOKOYAMA Hiroshi KITAGAWA Nobuhiko HOSHI

Environmental stress affects various parts of mammals typically through the circulation of stress hormones. It has been identified as one of the possible reasons for male reproductive difficulties, but the complex mechanisms responsible for stress-induced reproductive suppression are poorly understood. Here, we examined the relationship between chronic environmental stress and hypothalamic kiss...

Journal: :Progress in Neurobiology 2016
Sharon L. Hollins Murray J. Cairns

The developmental processes that establish the synaptic architecture of the brain while retaining capacity for activity-dependent remodeling, are complex and involve a combination of genetic and epigenetic influences. Dysregulation of these processes can lead to problems with neural circuitry which manifest in humans as a range of neurodevelopmental syndromes, such as schizophrenia, bipolar dis...

2015
BE Prie VM Voiculescu OB Ionescu-Bozdog B Petrutescu L Iosif LE Gaman VG Clatici I Stoian C Giurcaneanu

Alopecia areata (AA) is an inflammatory and autoimmune disease presenting with non-scarring hair loss. The aethiopathogenesis of alopecia areata is unclear and many factors including autoimmunity, genetic predisposition, emotional and environmental stress are thought to play important roles in its development. Antioxidant/ oxidant balance perturbation is a common feature in autoimmune, emotiona...

Journal: :Plant physiology 2010
Philip M Mullineaux Neil R Baker

Severe environmental stress imposed on plant tissues induces changes in oxygen (O2) metabolism that cause oxidative stress. Oxidative stress occurs when reactive oxygen species (ROS) are not rapidly scavenged and the rate of repair of damaged cell components fails to keep pace with the rate of damage. If this situation persists, irreversible damage results in a loss of physiological competence ...

Journal: :Plant & cell physiology 2016
Kaori Sako Jong-Myong Kim Akihiro Matsui Kotaro Nakamura Maho Tanaka Makoto Kobayashi Kazuki Saito Norikazu Nishino Miyako Kusano Teruaki Taji Minoru Yoshida Motoaki Seki

Adaptation to environmental stress requires genome-wide changes in gene expression. Histone modifications are involved in gene regulation, but the role of histone modifications under environmental stress is not well understood. To reveal the relationship between histone modification and environmental stress, we assessed the effects of inhibitors of histone modification enzymes during salinity s...

Journal: :Neurobiology of Disease 2016
Ligia A. Papale Sisi Li Andy Madrid Qi Zhang Li Chen Pankaj Chopra Peng Jin Sündüz Keleş Reid S. Alisch

Environmental stress is among the most important contributors to increased susceptibility to develop psychiatric disorders. While it is well known that acute environmental stress alters gene expression, the molecular mechanisms underlying these changes remain largely unknown. 5-hydroxymethylcytosine (5hmC) is a novel environmentally sensitive epigenetic modification that is highly enriched in n...

Ali Asghari, Elnaz Ramzi, Hamidreza Mohammaddoust Chamanabad Saeid Khomari,

Environmental stresses are the most important factors that reduce plant growth in stages of development. The presence of aluminum in acidic soils as an environmental stress has an impact on different parts of the plant and reduces root growth, water absorption and nutrients and increases susceptibility to drought.  In order to evaluate the effect of aluminum stress levels on wheat at germinatio...

Journal: :Psychological medicine 2009
R Bogdan D A Pizzagalli

BACKGROUND Anhedonia and stress sensitivity have been identified as promising depressive phenotypes. Research suggests that stress-induced anhedonia is a possible mechanism underlying the association between stress and depression. The present proof-of-concept study assessed whether hedonic capacity and stress perception are heritable and whether their genetic and environmental contributions are...

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