TY  - JOUR
A1  - Jedrusik-Bode, Monika
A1  - Studencka, Maja
A1  - Smolka, Christian
A1  - Baumann, Tobias
A1  - Schmidt, Henning
A1  - Kampf, Jan
A1  - Paap, Franziska
A1  - Martin, Sophie
A1  - Tazi, Jamal
A1  - Müller, Kristian M.
A1  - Krüger, Marcus
A1  - Braun, Thomas
A1  - Bober, Eva
T1  - The sirtuin SIRT6 regulates stress granule formation in C. elegans and mammals
JF  - Journal of cell science
N2  - SIRT6 is a NAD(+)-dependent deacetylase that modulates chromatin structure and safeguards genomic stability. Until now, SIRT6 has been assigned to the nucleus and only nuclear targets of SIRT6 are known. Here, we demonstrate that in response to stress, C. elegans SIR-2.4 and its mammalian orthologue SIRT6 localize to cytoplasmic stress granules, interact with various stress granule components and induce their assembly. Loss of SIRT6 or inhibition of its catalytic activity in mouse embryonic fibroblasts impairs stress granule formation and delays disassembly during recovery, whereas deficiency of SIR-2.4 diminishes maintenance of P granules and decreases survival of C. elegans under stress conditions. Our findings uncover a novel, evolutionary conserved function of SIRT6 in the maintenance of stress granules in response to stress.
KW  - C. elegans
KW  - G3BP
KW  - SIRT6
KW  - Sirtuins
KW  - Stress
KW  - Stress granules
Y1  - 2013
U6  - https://doi.org/10.1242/jcs.130708
SN  - 0021-9533
SN  - 1477-9137
VL  - 126
IS  - 22
SP  - 5166
EP  - +
PB  - Company of Biologists Limited
CY  - Cambridge
ER  - 
TY  - JOUR
A1  - Wolff, Wanja
A1  - Brand, Ralf
T1  - Subjective stressors in school and their relation to neuroenhancement a behavioral perspective on students' everyday life "doping"
JF  - Substance abuse treatment, prevention, and policy
N2  - Background: The use of psychoactive substances to neuroenhance cognitive performance is prevalent. Neuroenhancement (NE) in everyday life and doping in sport might rest on similar attitudinal representations, and both behaviors can be theoretically modeled by comparable means-to-end relations (substance-performance). A behavioral (not substance-based) definition of NE is proposed, with assumed functionality as its core component. It is empirically tested whether different NE variants (lifestyle drug, prescription drug, and illicit substance) can be regressed to school stressors.
 Findings: Participants were 519 students (25.8 +/- 8.4 years old, 73.1% female). Logistic regressions indicate that a modified doping attitude scale can predict all three NE variants. Multiple NE substance abuse was frequent. Overwhelming demands in school were associated with lifestyle and prescription drug NE.
 Conclusions: Researchers should be sensitive for probable structural similarities between enhancement in everyday life and sport and systematically explore where findings from one domain can be adapted for the other. Policy makers should be aware that students might misperceive NE as an acceptable means of coping with stress in school, and help to form societal sensitivity for the topic of NE among our younger ones in general.
KW  - Neuroenhancement
KW  - Stress
KW  - School
KW  - Doping
Y1  - 2013
U6  - https://doi.org/10.1186/1747-597X-8-23
SN  - 1747-597X
VL  - 8
PB  - BioMed Central
CY  - London
ER  - 
TY  - JOUR
A1  - Yang, Ziyin
A1  - Baldermann, Susanne
A1  - Watanabe, Naoharu
T1  - Recent studies of the volatile compounds in tea
JF  - FOOD RESEARCH INTERNATIONAL
N2  - Tea aroma is one of the most important factors affecting the character and quality of tea. Recent advances in methods and instruments for separating and identifying volatile compounds have led to intensive investigations of volatile compounds in tea. These studies have resulted in a number of insightful and useful discoveries. Here we summarize the recent investigations into tea volatile compounds: the volatile compounds in tea products; the metabolic pathways of volatile formation in tea plants and the glycosidically-bound volatile compounds in tea; and the techniques used for studying such compounds. Finally, we discuss practical applications for the improvement of aroma and flavor quality in teas. (C) 2013 Elsevier Ltd. All rights reserved.
KW  - Biosynthesis
KW  - Precursor
KW  - Stress
KW  - Tea
KW  - Volatile
Y1  - 2013
U6  - https://doi.org/10.1016/j.foodres.2013.02.011
SN  - 0963-9969
VL  - 53
IS  - 2
SP  - 585
EP  - 599
PB  - ELSEVIER SCIENCE BV
CY  - AMSTERDAM
ER  -