Results 21 to 30 of about 21,293 (242)

Clinical insight into hypercalcemia in children

open access: yesEndokrynologia Polska
Plasma calcium levels are regulated by many factors, including the levels of calcium-sensitive receptors, parathyroid hormone, parathyroid hormone receptors, vitamin D, vitamin D receptors, and other proteins.
Huseyin Anıl Korkmaz
doaj   +1 more source

What do we know about lithium associated hypercalcemia?

open access: yesEuropean Psychiatry, 2023
Introduction Lithium associated with hypercalcemia may mimic a psychiatric condition and be confused for a relapse of bipolar disorder. The etiology seems to be due to a reduced sensitivity of the parathyroid cells to calcium, altering the parathyroid ...
N. Laherrán Cantera   +4 more
doaj   +1 more source

Purification and Characterization of a Receptor for Human Parathyroid Hormone and Parathyroid Hormone-related Peptide [PDF]

open access: yesJournal of Biological Chemistry, 2002
The human parathyroid hormone (PTH) receptor (hPTH1R), containing a 9-amino acid sequence of rhodopsin at its C terminus, was transiently expressed in COS-7 cells and solubilized with 0.25% n-dodecyl maltoside. Approximately 18 microg of hPTH1R were purified to homogeneity per mg of crude membranes by single-step affinity chromatography using 1D4, a ...
Masako, Shimada   +5 more
openaire   +2 more sources

Epigenetic Methylation of Parathyroid CaR and VDR Promoters in Experimental Secondary Hyperparathyroidism

open access: yesInternational Journal of Nephrology, 2012
Secondary hyperparathyroidism (s-HPT) in uremia is characterized by decreased expression in the parathyroids of calcium sensing (CaR) and vitamin D receptors (VDR).
Jacob Hofman-Bang   +3 more
doaj   +1 more source

Megalin Antagonizes Activation of the Parathyroid Hormone Receptor [PDF]

open access: yesJournal of Biological Chemistry, 1999
Parathyroid hormone (PTH) is predominantly cleared from the circulation by glomerular filtration and degradation in the renal proximal tubules. Here, we demonstrate that megalin, a multifunctional endocytic receptor in the proximal tubular epithelium, mediates the uptake and degradation of PTH.
Hilpert, J   +9 more
openaire   +3 more sources

FGF23 Actions on Target Tissues—With and Without Klotho

open access: yesFrontiers in Endocrinology, 2018
Fibroblast growth factor (FGF) 23 is a phosphaturic hormone whose physiologic actions on target tissues are mediated by FGF receptors (FGFR) and klotho, which functions as a co-receptor that increases the binding affinity of FGF23 for FGFRs.
Beatrice Richter, Christian Faul
doaj   +1 more source

Modeling calcium signaling by Cellular Automata simulation incorporating endocrine regulation and trafficking in various types of receptors

open access: yesAdvances in Difference Equations, 2017
Calcium signaling plays important physiological roles which range widely from activation of muscle, synaptic transmission, cell movement, fertilization, growth in the cell population, learning process and retention of memory, to saliva secretion. Calcium
Chontita Rattanakul, Yongwimon Lenbury
doaj   +1 more source

Changes in Bone Metabolism and Structure in Primary Hyperparathyroidism

open access: yesActa Medica Bulgarica, 2020
Parathyroid hormone (PTH) is a key regulator of bone turnover. Depending on the duration of action, the hormone causes catabolic and anabolic effects by binding with specific receptors (PTHR1) in the bone.
Yankova I., Shinkov A., Kovatcheva R.
doaj   +1 more source

Naringenin and β-carotene convert human white adipocytes to a beige phenotype and elevate hormone- stimulated lipolysis

open access: yesFrontiers in Endocrinology, 2023
IntroductionNaringenin, a peroxisome proliferator-activated receptor (PPAR) activator found in citrus fruits, upregulates markers of thermogenesis and insulin sensitivity in human adipose tissue.
Ann A. Coulter   +8 more
doaj   +1 more source

Parathyroid hormone acts as a pharmacological chaperone on the parathyroid hormone receptor

open access: yesThe FASEB Journal, 2008
Parathyroid hormone receptor (PTH1R) belongs to class B G‐protein‐coupled receptors and is the major regulator of extracellular calcium homeostasis. Binding of the native ligand parathyroid hormone (PTH) or biologically active peptide fragments of PTH to the receptor lead to the activation of Gs and Gq/G11 pathways with subsequent stimulation of ...
Christoph Klenk, Martin J. Lohse
openaire   +1 more source

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