Results 51 to 60 of about 1,542,489 (314)

In Vivo Detection of Radicals in Biological Reactions [PDF]

Environmental Health Perspectives, 1994
In vivo detection of free radicals on a quantitative basis is essential for an establishment of their role in membrane, protein, and cell and tissue damage. This article compares optical methods, including chemiluminescence, electron paramagnetic resonance (EPR) and NMR methods for the study of free radicals and free radical damage, especially ...
B, Chance, G, Gao
openaire   +2 more sources

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Edge detection by landing honeybees: behavioural analysis and model simulations of the underlying mechanism

, 1997
Kern R, Egelhaaf M, Srinivasan MV. Edge detection by landing honeybees: behavioural analysis and model simulations of the underlying mechanism. Vision Research.
Egelhaaf, M., Egelhaaf, M, Srinivasan, Mandyam V., Srinivasan, M.V., Egelhaaf, Martin ; https://orcid.org/, Kern, Roland ; https://orcid.org/, Srinivasan, MV, Kern, R, M.V. Srinivasan, Kern, R., R. Kern, M. Egelhaaf   +11 more
core   +2 more sources

Development of a Sensitive SERS Method for Label-Free Detection of Hexavalent Chromium in Tea Using Carbimazole Redox Reaction

Foods, 2023
Tea plants absorb chromium-contaminated soil and water and accumulate in tea leaves. Hexavalent chromium (Cr6+) is a very toxic heavy metal; excessive intake of tea containing Cr6+ can cause serious harm to human health.
Limei Yin, Heera Jayan, Jianrong Cai, Hesham R. El-Seedi, Zhiming Guo, Xiaobo Zou   +5 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Contrast-Independent Biologically Inspired Motion Detection

, 2011
Babies B, Lindemann JP, Egelhaaf M, Möller R. Contrast-Independent Biologically Inspired Motion Detection. Sensors. 2011;11(12):3303-3326.Optic flow, i.e., retinal image movement resulting from ego-motion, is a crucial source of information used for ...
Lindemann, Jens Peter ; https://orcid.org/, Egelhaaf, Martin ; https://orcid.org/, Martin Egelhaaf, Jens Peter Lindemann, Ralf Möller, Birthe Babies, Möller, Ralf ; https://orcid.org/, Babies, Birthe   +7 more
core   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Optimal features for online seizure detection [PDF]

, 2012
31/07/12 MEB. accepted version attached, publisher allows this to be added.This study identifies characteristic features in scalp EEG that simultaneously give the best discrimination between epileptic seizures and background EEG in minimally pre-processed
Casson, Alexander J.; id_orcid, Logesparan, Lojini, Logesparan, L, Rodriguez-Villegas, E, Rodriguez-Villegas, Esther, Casson, AJ   +5 more
core   +1 more source

The Inhibitory Activity of Anthraquinones against Pathogenic Protozoa, Bacteria, and Fungi and the Relationship to Structure

Molecules, 2020
Plant-derived anthraquinones were evaluated in cell assays for their inhibitory activities against the parasitic protozoa Trichomonas vaginalis human strain G3 that causes the sexually transmitted disease trichomoniasis in women, Tritrichomonas foetus ...
Mendel Friedman, Alexander Xu, Rani Lee, Daniel N. Nguyen, Tina A. Phan, Sabrina M. Hamada, Rima Panchel, Christina C. Tam, Jong H. Kim, Luisa W. Cheng, Kirkwood M. Land   +10 more
doaj   +1 more source