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Physiological agonism and antagonism

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985: 90:, which lowers arterial pressure. Thus, despite not being true antihistamines because they do not bind to and block the histamine receptor, epinephrine and other such substances are physiological antagonists to histamine. 108:
Pietrapiana, D; Sala, M; Prat, M; Sinigaglia, F (Aug 15, 2005). "Met identification on human platelets: role of hepatocyte growth factor in the modulation of platelet activation".
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describes the behavior of a substance that produces effects counteracting those of another substance (a result similar to that produced by an
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describes the action of a substance which ultimately produces the same effects in the body as another substance—as if they were both
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blocking the action of an agonist at the same receptor) using a mechanism that does not involve binding to the same receptor.
955: 509: 945: 885: 378: 940: 636: 547: 413: 1000: 865: 490: 1045: 418: 1065: 608: 1060: 1019: 343: 162: 1050: 855: 603: 597: 920: 622: 57: 671: 433: 428: 338: 256: 24: 807: 568: 543: 478: 367: 251: 1012: 915: 707: 186: 155: 82:. For instance, epinephrine raises arterial pressure through vasoconstriction mediated by A1- 75: 950: 812: 722: 563: 443: 211: 71: 53: 8: 1055: 860: 748: 717: 363: 323: 246: 83: 32: 830: 780: 681: 494: 473: 373: 294: 206: 133: 79: 825: 686: 676: 504: 498: 333: 125: 137: 870: 758: 753: 553: 523: 309: 289: 271: 117: 20: 121: 910: 785: 613: 573: 558: 266: 216: 468: 996: 900: 880: 799: 641: 383: 328: 1039: 984: 905: 392: 299: 992: 875: 835: 736: 660: 538: 221: 178: 129: 960: 447: 423: 49: 840: 772: 664: 439: 107: 618: 87: 740: 712: 699: 388: 201: 147: 593: 486: 482: 284: 60:(HGF). Thus, they are physiological agonists to each other. 659: 933: 735: 893: 355: 317: 1037: 27:—without actually binding to the same receptor. 1020: 798: 163: 101: 64: 1027: 1013: 170: 156: 771: 239: 194: 43: 698: 406: 70:There are several substances that have 1038: 531: 461: 151: 979: 586: 13: 956:Minimum bactericidal concentration 14: 1077: 983: 946:Minimum inhibitory concentration 177: 886:WHO list of essential medicines 379:Non-specific effect of vaccines 941:Antimicrobial pharmacodynamics 1: 866:Functional analog (chemistry) 122:10.1016/j.febslet.2005.06.072 94: 999:. You can help Knowledge by 419:Hill equation (biochemistry) 7: 86:activation, in contrast to 38: 10: 1082: 978: 934:Antimicrobial pharmacology 414:Dose–response relationship 344:Desensitization (medicine) 856:Coinduction (anesthetics) 849: 650: 522: 308: 185: 74:action despite not being 65:Physiological antagonists 921:Multiple drug resistance 894:Tolerance and resistance 262:Physiological antagonist 58:hepatocyte growth factor 29:Physiological antagonism 672:Neuropsychopharmacology 434:Cheng-Prussoff Equation 429:Del Castillo Katz model 356:Other effects of ligand 339:Receptor (biochemistry) 257:Irreversible antagonist 808:Classical pharmacology 569:Plasma protein binding 544:Volume of distribution 252:Competitive antagonist 44:Physiological agonists 916:Antibiotic resistance 708:Clinical pharmacology 227:Physiological agonist 187:Ligand (biochemistry) 17:Physiological agonism 813:Reverse pharmacology 723:Pharmacoepidemiology 564:Biological half-life 444:Ligand binding assay 318:Activity at receptor 212:Irreversible agonist 54:platelet aggregation 1046:Medical terminology 861:Combination therapy 749:Pharmacoinformatics 718:Medicinal chemistry 324:Mechanism of action 84:adrenergic receptor 1066:Biochemistry stubs 831:Immunopharmacology 781:Pharmacotoxicology 682:Psychopharmacology 474:Intrinsic activity 374:Pleiotropy (drugs) 295:Agonist-antagonist 207:Endogenous agonist 80:histamine receptor 1061:Receptor agonists 1008: 1007: 973: 972: 969: 968: 929: 928: 826:Photopharmacology 821: 820: 794: 793: 767: 766: 731: 730: 694: 693: 687:Electrophysiology 677:Neuropharmacology 632: 631: 582: 581: 518: 517: 505:Therapeutic index 457: 456: 402: 401: 351: 350: 280: 279: 235: 234: 72:antihistaminergic 1073: 1051:Pharmacodynamics 1029: 1022: 1015: 987: 980: 931: 930: 891: 890: 871:Polypharmacology 796: 795: 769: 768: 759:Pharmacogenomics 754:Pharmacogenetics 733: 732: 696: 695: 657: 656: 584: 583: 554:Rate of infusion 529: 528: 524:Pharmacokinetics 459: 458: 404: 403: 353: 352: 315: 314: 310:Pharmacodynamics 290:Neurotransmitter 272:Enzyme inhibitor 237: 236: 192: 191: 172: 165: 158: 149: 148: 142: 141: 105: 1081: 1080: 1076: 1075: 1074: 1072: 1071: 1070: 1036: 1035: 1034: 1033: 976: 974: 965: 925: 911:Drug resistance 889: 845: 817: 790: 786:Neurotoxicology 763: 727: 690: 652: 646: 628: 578: 574:Bioavailability 559:Onset of action 514: 453: 398: 347: 304: 276: 267:Inverse agonist 231: 217:Partial agonist 181: 176: 146: 145: 106: 102: 97: 67: 46: 41: 12: 11: 5: 1079: 1069: 1068: 1063: 1058: 1053: 1048: 1032: 1031: 1024: 1017: 1009: 1006: 1005: 988: 971: 970: 967: 966: 964: 963: 958: 953: 951:Bacteriostatic 948: 943: 937: 935: 927: 926: 924: 923: 918: 913: 908: 903: 901:Drug tolerance 897: 895: 888: 883: 881:Lists of drugs 878: 873: 868: 863: 858: 853: 851: 847: 846: 844: 843: 838: 833: 828: 822: 819: 818: 816: 815: 810: 804: 802: 800:Drug discovery 792: 791: 789: 788: 783: 777: 775: 765: 764: 762: 761: 756: 751: 745: 743: 729: 728: 726: 725: 720: 715: 710: 704: 702: 692: 691: 689: 684: 679: 674: 669: 667: 654: 648: 647: 645: 644: 642:Bioequivalence 639: 633: 630: 629: 627: 626: 616: 611: 606: 601: 590: 588: 580: 579: 577: 576: 571: 566: 561: 556: 551: 541: 535: 533: 526: 520: 519: 516: 515: 513: 512: 507: 502: 476: 471: 465: 463: 455: 454: 452: 451: 436: 431: 426: 421: 416: 410: 408: 400: 399: 397: 396: 386: 384:Adverse effect 381: 376: 371: 359: 357: 349: 348: 346: 341: 336: 331: 329:Mode of action 326: 321: 319: 312: 306: 305: 303: 302: 297: 292: 287: 281: 278: 277: 275: 274: 269: 264: 259: 254: 249: 243: 241: 233: 232: 230: 229: 224: 219: 214: 209: 204: 198: 196: 189: 183: 182: 175: 174: 167: 160: 152: 144: 143: 116:(20): 4550–4. 99: 98: 96: 93: 92: 91: 66: 63: 62: 61: 56:, and so does 45: 42: 40: 37: 9: 6: 4: 3: 2: 1078: 1067: 1064: 1062: 1059: 1057: 1054: 1052: 1049: 1047: 1044: 1043: 1041: 1030: 1025: 1023: 1018: 1016: 1011: 1010: 1004: 1002: 998: 995:article is a 994: 989: 986: 982: 981: 977: 962: 959: 957: 954: 952: 949: 947: 944: 942: 939: 938: 936: 932: 922: 919: 917: 914: 912: 909: 907: 906:Tachyphylaxis 904: 902: 899: 898: 896: 892: 887: 884: 882: 879: 877: 874: 872: 869: 867: 864: 862: 859: 857: 854: 852: 848: 842: 839: 837: 834: 832: 829: 827: 824: 823: 814: 811: 809: 806: 805: 803: 801: 797: 787: 784: 782: 779: 778: 776: 774: 770: 760: 757: 755: 752: 750: 747: 746: 744: 742: 738: 734: 724: 721: 719: 716: 714: 711: 709: 706: 705: 703: 701: 697: 688: 685: 683: 680: 678: 675: 673: 670: 668: 666: 662: 658: 655: 649: 643: 640: 638: 635: 634: 624: 620: 617: 615: 612: 610: 607: 605: 602: 599: 595: 592: 591: 589: 585: 575: 572: 570: 567: 565: 562: 560: 557: 555: 552: 549: 545: 542: 540: 537: 536: 534: 530: 527: 525: 521: 511: 508: 506: 503: 500: 496: 492: 488: 484: 480: 477: 475: 472: 470: 467: 466: 464: 460: 449: 445: 441: 437: 435: 432: 430: 427: 425: 422: 420: 417: 415: 412: 411: 409: 405: 394: 393:Neurotoxicity 390: 387: 385: 382: 380: 377: 375: 372: 369: 365: 362:Selectivity ( 361: 360: 358: 354: 345: 342: 340: 337: 335: 332: 330: 327: 325: 322: 320: 316: 313: 311: 307: 301: 300:Pharmacophore 298: 296: 293: 291: 288: 286: 283: 282: 273: 270: 268: 265: 263: 260: 258: 255: 253: 250: 248: 245: 244: 242: 238: 228: 225: 223: 220: 218: 215: 213: 210: 208: 205: 203: 200: 199: 197: 193: 190: 188: 184: 180: 173: 168: 166: 161: 159: 154: 153: 150: 139: 135: 131: 127: 123: 119: 115: 111: 104: 100: 89: 85: 81: 77: 73: 69: 68: 59: 55: 51: 48: 47: 36: 34: 30: 26: 22: 18: 1001:expanding it 993:biochemistry 990: 975: 876:Chemotherapy 836:Cell biology 737:Biochemistry 661:Neuroscience 609:Distribution 539:Loading dose 261: 226: 222:Superagonist 179:Pharmacology 113: 110:FEBS Letters 109: 103: 28: 23:at the same 16: 15: 961:Bactericide 637:Compartment 448:Patch clamp 424:Schild plot 50:Epinephrine 1056:Physiology 1040:Categories 841:Physiology 773:Toxicology 665:psychology 614:Metabolism 604:Absorption 598:Liberation 440:Organ bath 368:Functional 247:Antagonist 240:Inhibitory 195:Excitatory 95:References 33:antagonist 623:Clearance 619:Excretion 438:Methods ( 88:histamine 741:genetics 713:Pharmacy 700:Medicine 510:Affinity 469:Efficacy 407:Analysis 389:Toxicity 138:39722975 130:16083876 78:for the 52:induces 39:Examples 25:receptor 21:agonists 651:Related 594:(L)ADME 548:Initial 532:Metrics 479:Potency 462:Metrics 364:Binding 334:Binding 202:Agonist 76:ligands 653:fields 136:  128:  991:This 850:Other 587:LADME 134:S2CID 997:stub 739:and 663:and 499:TD50 495:LD50 491:ED50 487:IC50 483:EC50 285:Drug 126:PMID 596:: ( 118:doi 114:579 1042:: 497:, 493:, 489:, 485:, 446:, 442:, 366:, 132:. 124:. 112:. 1028:e 1021:t 1014:v 1003:. 625:) 621:( 600:) 550:) 546:( 501:) 481:( 450:) 395:) 391:( 370:) 171:e 164:t 157:v 140:. 120::

Index

agonists
receptor
antagonist
Epinephrine
platelet aggregation
hepatocyte growth factor
antihistaminergic
ligands
histamine receptor
adrenergic receptor
histamine
doi
10.1016/j.febslet.2005.06.072
PMID
16083876
S2CID
39722975
v
t
e
Pharmacology
Ligand (biochemistry)
Agonist
Endogenous agonist
Irreversible agonist
Partial agonist
Superagonist
Physiological agonist
Antagonist
Competitive antagonist

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