Results 41 to 50 of about 11,775,341 (296)

Functional Response of Tumor Vasculature to PaCO2: Determination of Total and Microvascular Blood Volume by MRI

Neoplasia: An International Journal for Oncology Research, 2003
In order to identify differences in functional activity, we compared the reactivity of glioma vasculature and the native cerebral vasculature to both dilate and constrict in response to altered PaCO2.
Scott D. Packard, Joseph B. Mandeville, Tomotsugu Ichikawa, Keiro Ikeda, Kinya Terada, Stephanie Niloff, E. Antonio Chiocca, Bruce R. Rosen, John J.A. Marota   +8 more
doaj   +1 more source

Human red blood cells at work: identification and visualization of erythrocytic eNOS activity in health and disease [PDF]

, 2012
A nitric oxide synthase (NOS)-like activity has been demonstrated in human red blood cells (RBCs), but doubts about its functional significance, isoform identity and disease relevance remain.
Rodriguez-Mateos, Ana; id_orcid, Wolters, Dirk, Heiß, Christian, Rodriguez Mateos, Ana, Krenz, Thomas, Kuhnle, G. G. C., Cortese-Krott, Miriam M, Rodriguez-Mateos, Ana, Kelm, Malte, Cortese-Knott, Miriam M., Feelisch, Martin, Rodriguez-Mateos, Z, Kroncke, K.-D., Kröncke, Klaus-Dietrich, Sansone, R., Kuhnle, Gunter G. C., Kelm, M., Heiss, C., Krisp, C., Sansone, Roberto, Horn, P., Feelisch, M., Horn, Patrick, Krisp, Christoph, Krenz, T., Hogg, N., Kuhnle, Gunter, Kuhnle, Gunter G.C., Thasian-Sivarajah, S., Thasian-Sivarajah, Sivatharsini, Wolters, D., Cortese-Krott, Miriam M., Hogg, Neil, Cortese-Krott, M. M.   +33 more
core   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Capillary Isotachophoresis Determination of Trace Oxidized Glutathione in Blood

Hungarian Journal of Industry and Chemistry, 2018
A capillary isotachophoresis (CITP) method performed in a column-coupling apparatus has been developed for the simultaneous determination of glutathione (GSH) and glutathione disulfide (GSSG) concentrations in blood samples. The determination of GSSG and
Bodor Robert, Nečasová Andrea, Pechová Alena, Masár Marián   +3 more
doaj   +1 more source

Highly sensitive determination of hydrogen peroxide and glucose by fluorescence correlation spectroscopy. [PDF]

PLoS ONE, 2011
BACKGROUND: Because H(2)O(2) is generated by various oxidase-catalyzed reactions, a highly sensitive determination method of H(2)O(2) is applicable to measurements of low levels of various oxidases and their substrates such as glucose, lactate, glutamate,
Satoshi Watabe, Yuki Sakamoto, Mika Morikawa, Ryuichi Okada, Toshiaki Miura, Etsuro Ito   +5 more
doaj   +1 more source

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

FEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta, Hari Baskar Balasubramanian, Amir Pasokh, Marietta Zille   +3 more
wiley   +1 more source

An epithelial GPR35 isoform supports tumor‐associated transcriptional and metabolic phenotypes

FEBS Letters, EarlyView.
GPR35 generates two functionally distinct isoforms with previously unresolved roles. GPR35‐short mediates immune‐cell chemotaxis, while GPR35‐long is enriched in colorectal cancer epithelium, where it supports increased metabolism, proliferation, and tumor‐associated transcriptional programs.
Jørgen D. Rønneberg, Martine Hjeltnes, Josephine Krieger, Joshua E. Elias, Maria Stensland, Kristian Holm, Xiaojun Jiang, Chuki Khangsar, Tuula A. Nyman, Arthur Kaser, Johannes R. Hov, Tom H. Karlsen, Nicole C. Kaneider, Frode L. Jahnsen, Georg Schneditz   +14 more
wiley   +1 more source

Blood volume analysis as a guide for dry weight determination in chronic hemodialysis patients: a crossover study

BMC Nephrology, 2019
Background Volume overload and depletion both lead to high morbidity and mortality. Achieving euvolemia is a challenge in patients with end stage kidney disease on hemodialysis (HD).
Line Malha, Hasan Fattah, Frank Modersitzki, David S. Goldfarb   +3 more
doaj   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source