نتایج جستجو برای: survival adaptive response

تعداد نتایج: 1427193  

Journal: :Hormones and behavior 2006
J Cote J Clobert S Meylan P S Fitze

Corticosterone is an important hormone of the stress response that regulates physiological processes and modifies animal behavior. While it positively acts on locomotor activity, it may negatively affect reproduction and social activity. This suggests that corticosterone may promote behaviors that increase survival at the cost of reproduction. In this study, we experimentally investigate the li...

Journal: :iranian journal of radiation research 0
f. pakniat department of radiology, school of paramedicine, shahid beheshti university of medical sciences, tehran, iran h. mozdarani department of medical genetics, faculty of medical sciences, tarbiat modares university, tehran, iran b. nasirian malek-ashtar university, tehran, iran f. faeghi department of radiology, school of paramedicine, shahid beheshti university of medical sciences, tehran, iran

background: ˝radioadaptive response˝ is well-documented phenomenon appeared in low dose ionizing radiation received in vitro and in vivo. occupational exposure has always been a great concern for radiation workers therefore this study was performed to study radioadaptive response in terms of residual dna double strand breaks as an endpoint in peripheral blood leukocytes of occupationally expose...

Journal: :Microbiology 2003
Leendert W Hamoen Gerard Venema Oscar P Kuipers

Bacteria have developed a wide arsenal of survival strategies to cope with the specific problems posed by their environment. These processes are carefully regulated and complex signal transduction cascades ensure proper activation of the adequate adaptive response. An intriguing observation is that generally the regulation pathways of the different adaptive processes are highly intertwined. In ...

Journal: :Journal of immunology 2007
Sarah L Lebeis Bettina Bommarius Charles A Parkos Melanie A Sherman Daniel Kalman

Enteropathogenic Escherichia coli, enterohemorrhagic E. coli, and Citrobacter rodentium are classified as attaching and effacing pathogens based on their ability to adhere to intestinal epithelium via actin-filled membranous protrusions (pedestals). Infection of mice with C. rodentium causes breach of the colonic epithelial barrier, a vigorous Th1 inflammatory response, and colitis. Ultimately,...

Journal: :Statistics in medicine 2009
Xuelin Huang Jing Ning Yisheng Li Elihu Estey Jean-Pierre Issa Donald A Berry

Increased survival is a common goal of cancer clinical trials. Owing to the long periods of observation and follow-up to assess patient survival outcome, it is difficult to use outcome-adaptive randomization in these trials. In practice, often information about a short-term response is quickly available during or shortly after treatment, and this short-term response is a good predictor for long...

ژورنال: کنترل 2021

In this paper, the problem of fractional order multi-agent tracking control problem is considered. External disturbances, uncertainties, error constraints, transient response suitability and desirable response tracking problems are the challenges in this study. Because of these problems and challenges, an adaptive control and neural estimator approaches are used in this study. In the first part...

Journal: :Journal of immunology 2015
Alison J Eastman Xiumiao He Yafeng Qiu Michael J Davis Priya Vedula Daniel M Lyons Yoon-Dong Park Sarah E Hardison Antoni N Malachowski John J Osterholzer Floyd L Wormley Peter R Williamson Michal A Olszewski

Numerous virulence factors expressed by Cryptococcus neoformans modulate host defenses by promoting nonprotective Th2-biased adaptive immune responses. Prior studies demonstrate that the heat shock protein 70 homolog, Ssa1, significantly contributes to serotype D C. neoformans virulence through the induction of laccase, a Th2-skewing and CNS tropic factor. In the present study, we sought to det...

Sugianto , Astrid Indrafebrina , Tjitra Sari, Teny , Wulandari , Dewi ,

Background: Zinc depletion decreases monocyte functions and survival while excessive amount of zinc inhibits monocyte activation. Monocytes shift from conducting intercellular communication to becoming innate immune function as a response. This study aims to examine the influence of zinc status on the monocyte phagocytosis in patients with major beta-thalassemia. Materials and Methods: This st...

Journal: :Experimental & clinical gastroenterology 2022

The development of gastroenteritis caused by non-typhoidal Salmonella (NTS) is mediated the action effectors that belong to Type three secretory systems (T3SS) enterica. These are expressed pathogenicity islands 1 and 2 located in genome. T3SS-1 provide invasion salmonella into host cell, take part inflammatory diarrhea some may act as a predisposing factor oncogenesis leading colorectal cancer...

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