نتایج جستجو برای: serotonin cells
تعداد نتایج: 1412303 فیلتر نتایج به سال:
Histamine, serotonin and triiodothyronine (T3) content of different circulating lymphocyte subsets of leukemic (acute lymphocytic leukemia, ALL) and non-leukemic (control) children were investigated by multicolor flow cytometry. The hormone contents of the cells were followed from the time of diagnosis till the end of treatment. Each hormone could be detected in every time in the investigated c...
Flavanoids and related polyphenols, among them hesperitin, have been shown to modulate cellular glucose transport by targeting SGLT-1 and GLUT-2 transport proteins. We aimed to investigate whether homoeriodictyol, which is structurally related to hesperitin, affects glucose uptake in differentiated Caco-2 cells as a model for the intestinal barrier. The results revealed that, in contrast to oth...
BACKGROUND Autoantibodies to tryptophan hydroxylase (TPHAbs) directed against serotonin-producing enterochromaffin cells (EC) have been reported in autoimmune-polyendocrine-syndrome type 1 (APS-1) patients with gastrointestinal dysfunction (GID). Serotonin plays a critical role in enteric function and its peripheral blood levels reflect serotonin release from the gastrointestinal tract. AIMS ...
In the present study, the existence of serotonin immunoreactivity was investigated in the adrenal gland and kidney of porcupine, Hystrix cristata, using immunohistochemical techniques as a pioneer attempt. Serotonin immunoreactivity was detected in adrenal medullary cells, distal tubules and collecting duct cells in kidney.
Embryos of Helisoma trivolvis exhibit cilia-driven rotation within the egg capsule during development. In this study we examined whether nitric oxide (NO) is a physiological regulator of ciliary beating in cultured ciliary cells. The NO donor S-nitroso-N-acetylpenicillamine (SNAP; 1-1,000 microM) produced a dose-dependent increase in ciliary beat frequency (CBF). In contrast, the nitric oxide s...
Previous reports have shown that safflower-seed extract and its major antioxidant constituents, serotonin hydroxycinnamic amides, attenuated atherosclerotic lesion formation in apoE-deficient mice, as well as inflammation and aortic stiffness in human subjects. In the present report, we examined a still unknown cell-based mechanism of serotonin derivatives against the development of atheroscler...
This study combines functional and anatomical characterization of neurons in the rostral ventromedial medulla (RVM) to show distinct neurochemical phenotypes between functional classes of neurons. The RVM contains three functional classes of neurons: off cells show a pause in spontaneous activity prior to a nociceptive withdrawal reflex; on cell activity increases prior to a nociceptive reflex;...
OBJECTIVES To investigate the effects of serotonin and melatonin (MLT) on the regulation of malignant growth and the activity of serotonin receptors (5HTR1a/-1b) in prostate cancer (PCa) cell lines. MATERIALS AND METHODS In four PCa cell lines (LNCaP, 22RV1, PC3, DU145) and two reference cell lines 5HTR1a and -1b, relative mRNA expression levels were assessed. Different serotonin and MLT rece...
Gill lateral cells of Crassostrea virginica are innervated by the branchial nerve, which contains serotonergic and dopaminergic fibers that regulate cilia beating rate. Terminal release of serotonin or dopamine results in an increase or decrease, respectively, of cilia beating rate in lateral gill cells. In this study we used the voltage sensitive fluorescent probe DiBAC4(3) to quantify changes...
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