1 Scroll down to the bottom of the page and click the link labeled Get Add-ons to navigate to the Internet Explorer Gallery Add-ons webpage. 2  Select an add-on category from the list of options in the column or use the search engine to locate a particular add-on, extension or plug-in from the available options provided. Click the link labeled Find more toolbars and extensions, located in the lower-left corner of the dialog box, to be redirected to the Internet Explorer Gallery's webpage. 2  Scroll down to the bottom of the page and click the link labeled Get Add-ons to navigate to the Internet Explorer Gallery Add-ons webpage.
PDH may refer to: 1  Angiotensin-converting enzyme, an enzyme. 2  Plesiochronous digital hierarchy, a technology used in telecommunications networks.
Parathyroid hormone (PTH), parathyroid hormone-related protein (PTHrP), and tuberoinfundibular peptide of thirty-nine residues (TIP39) are endogenous ligands for the parathyroid hormone type 1 and 2 parathyroid hormone receptors. PTH is a classic endocrine hormone essential for mineral homeostasis [43]. It is synthesized as a pre-pro-protein by chief cells of the parathyroid gland. Its secretion is regulated by plasma calcium levels via a calcium-sensing receptor, a G protein-coupled receptor (GPCR). Mature PTH is an 84 residue polypeptide.