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Phosphodiesterase 4 Inhibitors [Pharmacological Action]
Epiregulin
A member of the epidermal growth factor (EGF) family of peptide growth factors that is synthesized as a transmembrane protein which can be cleaved to release a soluble active form. Epiregulin has specificity for the EGF RECEPTOR and the ERBB-4 RECEPTOR.
Year introduced: 2015
Betacellulin
An EGF family member that plays an important role in regulating growth and differentiation of PANCREATIC BETA CELLS. Betacellulin has specificity for the EGF RECEPTOR and the ERBB-4 RECEPTOR.
Heparin-binding EGF-like Growth Factor
An EGF family member that is expressed in a variety of hematopoietic, endothelial, vascular smooth muscle, and epithelial cells. It is synthesized as a transmembrane protein which is cleaved by proteases to produce the secreted form of the protein which has specificity for the EGF RECEPTOR and the ERBB-4 RECEPTOR. The membrane-bound form of the protein has been identified as the receptor which binds to and allows DIPHTHERIA TOXIN to enter cells.
Receptor, ErbB-4
A cell surface protein-tyrosine kinase receptor that has specificity for EPIREGULIN; BETACELLIN; NEUREGULINS; and HEPARIN-BINDING EGF-LIKE GROWTH-FACTOR.
Spinal Cord Dorsal Horn
One of three central columns of the spinal cord. It is composed of GRAY MATTER spinal laminae I-VI.
Cytochrome P-450 CYP2C19
A cytochrome P-450 enzyme subtype that oxidizes several important groups of drugs including many PROTON PUMP INHIBITORS and ANTICONVULSANTS.
Cytochrome P-450 CYP2C9
A cytochrome P-450 subtype that has specificity for acidic XENOBIOTICS. It oxidizes a broad range of important clinical drugs that fall under the categories of NONSTEROIDAL ANTI-INFLAMMATORY AGENTS; HYPOGLYCEMIC AGENTS; ANTCOAGULANTS; and DIURETICS.
Cytochrome P-450 CYP2C8
A liver microsomal cytochrome P450 hydroxylase that oxidizes a broad spectrum of substrates including STEROIDS, FATTY ACIDS, and XENOBIOTICS. Examples of pharmaceutical substrates for CYP2C8 include; PACLITAXOL; torsemide; and; AMODIAQUINE
Cytochrome P-450 CYP2B6
A cytochrome P450 enzyme subtype that oxidizes a diverse array of XENOBIOTICS. The expression of CYP2B6 varies widely between individuals which is due to the high rate of GENETIC POLYMORPHISMS. Examples of drugs metabolized by CYP2B6 include BUPROPION; efavirenz; CYCLOPHOSPHAMIDE; and MEPERIDINE.
Cytochrome P-450 CYP1B1
A cytochrome P450 aryl hydrocarbon hydroxylase that has specificity for ESTROGENS which it converts into 4-hydroxy estrogens. CYP1B1 has been shown to be physiologically important for FETAL DEVELOPMENT with mutations in the CYP1B1 gene resulting in congenital forms of GLAUCOMA and Peter's anomaly.
Prolyl Hydroxylases
Enzymes that specifically hydroxylate PROLINE residues on proteins.
Year introduced: 2014
Hypoxia-Inducible Factor-Proline Dioxygenases
Dioxygenase enzymes that specifically hydroxylate a PROLINE residue on the HYPOXIA-INDUCIBLE FACTOR 1, ALPHA SUBUNIT. They are OXYGEN-dependent enzymes that play an important role in mediating cellular adaptive responses to HYPOXIA.
Rabeprazole
A 4-(3-methoxypropoxy)-3-methylpyridinyl derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS.
Dexlansoprazole
The R-isomer of lansoprazole that is used to treat severe GASTROESOPHAGEAL REFLUX DISEASE.
Lansoprazole
A 2,2,2-trifluoroethoxypyridyl derivative of timoprazole that is used in the therapy of STOMACH ULCERS and ZOLLINGER-ELLISON SYNDROME. The drug inhibits H(+)-K(+)-EXCHANGING ATPASE which is found in GASTRIC PARIETAL CELLS. Lansoprazole is a racemic mixture of (R)- and (S)-isomers.
SLC4A Proteins
Bicarbonate transporters that move BICARBONATE IONS in exchange of CHLORIDE IONS or SODIUM IONS across membranes. They regulate acid-base HOMEOSTASIS, cell volume and intracellular pH. Members include CHLORIDE-BICARBONATE ANTIPORTERS (SLC4A1, 2, 3, and 9); SODIUM-COUPLED BICARBONATE TRANSPORTERS (SLC4A4 and 5, 7, 8 and 10); and a sodium borate cotransporter (SLC4A11 protein).
Solute Carrier Family 12, Member 4
K-Cl cotransporter ubiquitously expressed with higher expression levels in ERYTHROCYTES of ANEMIA, SICKLE CELL. It mediates active potassium and chloride cotransport across the plasma membrane and contributes to cell volume homeostasis
Hyperpolarization-Activated Cyclic Nucleotide-Gated Channels
A subgroup of cyclic nucleotide-regulated ION CHANNELS of the superfamily of pore-loop cation channels that are opened by hyperpolarization rather than depolarization. The ion conducting pore passes SODIUM, CALCIUM, and POTASSIUM cations with a preference for potassium.
3-Phosphoinositide-Dependent Protein Kinases
Highly conserved protein-serine threonine kinases that phosphorylate and activate a group of AGC protein kinases, especially in response to the production of the SECOND MESSENGERS, phosphatidylinositol 3,4,-biphosphate (PtdIns(3,4)P2) and phosphatidylinositol 3,4,5-triphosphate (PtdIns(3,4,5)P3).