Results 51 to 60 of about 4,998,988 (263)

Duodenal carcinoid tumour – a case report [PDF]

open access: yes, 2020
Duodenal carcinoids are rare tumours of the small intestine with heterogenous clinical and pathological characteristics. The long-term prognosis is very good if discovered in the early stages.
Alexescu, Teodora Gabriela   +7 more
core   +2 more sources

Late-onset Parkinsonism in NFκB/c-Rel-deficient mice. [PDF]

open access: yes, 2012
Activation of the nuclear factor \u3baB/c-Rel can increase neuronal resilience to pathological noxae by regulating the expression of pro-survival manganese superoxide dismutase (MnSOD, now known as SOD2) and Bcl-xL genes.
Alghisi M   +17 more
core   +3 more sources

Chromogranin A: From Laboratory to Clinical Aspects of Patients with Neuroendocrine Tumors [PDF]

open access: yes, 2018
Background. Neuroendocrine tumors (NETs) are characterized by having behavior and prognosis that depend upon tumor histology, primary site, staging, and proliferative index.
Baldelli, Roberto   +8 more
core   +1 more source

Gut Microbiota-derived Bile Acids Promote Gamma-secretase Activity Through Interactions with Nicastrin Subunits [PDF]

open access: yesarXiv, 2023
Alzheimer's disease (AD) has emerged as a progressively pervasive neurodegenerative disorder worldwide. Bile acids, synthesized in the liver and modified by the gut microbiota, play pivotal roles in diverse physiological processes, and their dysregulation in individuals with AD has been well-documented.
arxiv  

Serotonin content of foods: effect on urinary excretion of 5-hydroxyindoleacetic acid.

open access: yesAmerican Journal of Clinical Nutrition, 1985
Using a highly specific radioenzymatic assay we determined the serotonin concentration in 80 types of foods. The following fruits had a high serotonin concentration (mean +/- SEM) expressed in micrograms/g weight: plantain 30.3 +/- 7.5; pineapple 17.0 +/-
J. Feldman, E. M. Lee
semanticscholar   +1 more source

Predator stress-induced depression is associated with inhibition of hippocampal neurogenesis in adult male mice

open access: yesNeural Regeneration Research, 2019
Stress has been suggested to disturb the 5-hydroxytryptamine system and decrease neurogenesis, which contribute to the development of depression. Few studies have investigated the effect of predator stress, a type of psychological stress, on depression ...
Yan-Ping Wu   +5 more
doaj   +1 more source

The effects of carboxylic acids on the aqueous dispersion and electrophoretic deposition of ZrO2 [PDF]

open access: yesJournal of the European Ceramic Society, Volume 32, Issue 1, 2012, Pages 235-244, 2013
The agglomeration, electrokinetic properties and electrophoretic deposition behaviour of aqueous suspensions of ZrO2 with carboxylic acid additives were studied in comparison with conventional pH adjustment. It was found that citric acid imparted negative zeta-potential values and electrosteric stabilisation to particles in suspensions at all pH levels.
arxiv   +1 more source

Learning the Hydrophilic, Hydrophobic and Aromatic Character of Amino Acids from their Interfacial Thermal Conductance in Water [PDF]

open access: yes, 2021
In this study, the thermal relaxation of the 20 naturally occurring amino-acids in water is investigated using transient non-equilibrium molecular-dynamics simulations. By modeling the thermal relaxation process, the relaxation times of the amino-acids in water occurs over a timescale covering 2-5 ps.
arxiv   +1 more source

Depressive disorder and gastrointestinal dysfunction after myocardial infarct are associated with abnormal tryptophan-5-hydroxytryptamine metabolism in rats. [PDF]

open access: yesPLoS ONE, 2017
In this study, we investigated the relationship between tryptophan-5-hydroxytryptamine metabolism, depressive disorder, and gastrointestinal dysfunction in rats after myocardial infarction.
Xiaofang Lu   +3 more
doaj   +1 more source

Alterations in gut microbiota and metabolites contribute to postoperative sleep disturbances

open access: yesAnimal Models and Experimental Medicine, EarlyView.
In this study, we classified postoperative patients into poor sleepers (PS) and good sleepers (GS) based on the bispectral index (BIS), and transplanted their fecal microbiota to pseudo‐germ‐free rats to analyze the sleep changes in rats and the potential mechanism.
Hui Zhong   +7 more
wiley   +1 more source

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