CA1072426A - Catecholamine assay - Google Patents
Catecholamine assayInfo
- Publication number
- CA1072426A CA1072426A CA275,051A CA275051A CA1072426A CA 1072426 A CA1072426 A CA 1072426A CA 275051 A CA275051 A CA 275051A CA 1072426 A CA1072426 A CA 1072426A
- Authority
- CA
- Canada
- Prior art keywords
- methylated
- accordance
- epinephrine
- norepinephrine
- methyl
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003556 assay Methods 0.000 title abstract description 76
- 150000003943 catecholamines Chemical class 0.000 title abstract description 64
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 55
- 108020002739 Catechol O-methyltransferase Proteins 0.000 claims abstract description 33
- 238000012546 transfer Methods 0.000 claims abstract description 12
- 102000006378 Catechol O-methyltransferase Human genes 0.000 claims abstract 11
- 238000000034 method Methods 0.000 claims description 98
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 55
- 229960005139 epinephrine Drugs 0.000 claims description 55
- 150000001875 compounds Chemical class 0.000 claims description 48
- 239000003960 organic solvent Substances 0.000 claims description 44
- 230000003647 oxidation Effects 0.000 claims description 41
- 238000007254 oxidation reaction Methods 0.000 claims description 41
- UCTWMZQNUQWSLP-VIFPVBQESA-N (R)-adrenaline Chemical compound CNC[C@H](O)C1=CC=C(O)C(O)=C1 UCTWMZQNUQWSLP-VIFPVBQESA-N 0.000 claims description 40
- 229930182837 (R)-adrenaline Natural products 0.000 claims description 39
- 210000002381 plasma Anatomy 0.000 claims description 39
- 239000000243 solution Substances 0.000 claims description 38
- 239000003795 chemical substances by application Substances 0.000 claims description 37
- 239000000203 mixture Substances 0.000 claims description 36
- 150000001768 cations Chemical class 0.000 claims description 35
- 102000004190 Enzymes Human genes 0.000 claims description 34
- 108090000790 Enzymes Proteins 0.000 claims description 34
- RWSXRVCMGQZWBV-WDSKDSINSA-N glutathione Chemical compound OC(=O)[C@@H](N)CCC(=O)N[C@@H](CS)C(=O)NCC(O)=O RWSXRVCMGQZWBV-WDSKDSINSA-N 0.000 claims description 33
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 32
- 229960002748 norepinephrine Drugs 0.000 claims description 32
- 210000001519 tissue Anatomy 0.000 claims description 32
- SFLSHLFXELFNJZ-UHFFFAOYSA-N norepinephrine Natural products NCC(O)C1=CC=C(O)C(O)=C1 SFLSHLFXELFNJZ-UHFFFAOYSA-N 0.000 claims description 31
- SFLSHLFXELFNJZ-QMMMGPOBSA-N (-)-norepinephrine Chemical compound NC[C@H](O)C1=CC=C(O)C(O)=C1 SFLSHLFXELFNJZ-QMMMGPOBSA-N 0.000 claims description 30
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Natural products CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 29
- 239000002904 solvent Substances 0.000 claims description 29
- 210000002966 serum Anatomy 0.000 claims description 28
- 238000011534 incubation Methods 0.000 claims description 27
- PHTQWCKDNZKARW-UHFFFAOYSA-N isoamylol Chemical compound CC(C)CCO PHTQWCKDNZKARW-UHFFFAOYSA-N 0.000 claims description 27
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 26
- 229910052749 magnesium Inorganic materials 0.000 claims description 26
- 239000011777 magnesium Substances 0.000 claims description 26
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 claims description 24
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 23
- 229910001424 calcium ion Inorganic materials 0.000 claims description 23
- 239000006228 supernatant Substances 0.000 claims description 22
- 239000000758 substrate Substances 0.000 claims description 21
- MEFKEPWMEQBLKI-AIRLBKTGSA-N S-adenosyl-L-methioninate Chemical compound O[C@@H]1[C@H](O)[C@@H](C[S+](CC[C@H](N)C([O-])=O)C)O[C@H]1N1C2=NC=NC(N)=C2N=C1 MEFKEPWMEQBLKI-AIRLBKTGSA-N 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- 239000013060 biological fluid Substances 0.000 claims description 18
- 239000012074 organic phase Substances 0.000 claims description 18
- 108010024636 Glutathione Proteins 0.000 claims description 17
- 239000002253 acid Substances 0.000 claims description 17
- 241000282414 Homo sapiens Species 0.000 claims description 16
- 230000002255 enzymatic effect Effects 0.000 claims description 16
- 238000006911 enzymatic reaction Methods 0.000 claims description 16
- 229960003180 glutathione Drugs 0.000 claims description 16
- 239000000741 silica gel Substances 0.000 claims description 16
- 229910002027 silica gel Inorganic materials 0.000 claims description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 15
- 239000011260 aqueous acid Substances 0.000 claims description 15
- 239000008346 aqueous phase Substances 0.000 claims description 15
- 239000000284 extract Substances 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 15
- 229910052722 tritium Inorganic materials 0.000 claims description 15
- YZCKVEUIGOORGS-NJFSPNSNSA-N Tritium Chemical compound [3H] YZCKVEUIGOORGS-NJFSPNSNSA-N 0.000 claims description 14
- 102000004357 Transferases Human genes 0.000 claims description 13
- 108090000992 Transferases Proteins 0.000 claims description 13
- 239000012071 phase Substances 0.000 claims description 13
- 229960003638 dopamine Drugs 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 12
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 11
- 229910052791 calcium Inorganic materials 0.000 claims description 11
- 239000011575 calcium Substances 0.000 claims description 11
- 238000000605 extraction Methods 0.000 claims description 11
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 10
- 229910017052 cobalt Inorganic materials 0.000 claims description 10
- 239000010941 cobalt Substances 0.000 claims description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 10
- KHIWWQKSHDUIBK-UHFFFAOYSA-N periodic acid Chemical compound OI(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-N 0.000 claims description 10
- 210000002700 urine Anatomy 0.000 claims description 10
- BDDLHHRCDSJVKV-UHFFFAOYSA-N 7028-40-2 Chemical compound CC(O)=O.CC(O)=O.CC(O)=O.CC(O)=O BDDLHHRCDSJVKV-UHFFFAOYSA-N 0.000 claims description 9
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 claims description 9
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 8
- 102000003823 Aromatic-L-amino-acid decarboxylases Human genes 0.000 claims description 7
- 108090000121 Aromatic-L-amino-acid decarboxylases Proteins 0.000 claims description 7
- 229940123736 Decarboxylase inhibitor Drugs 0.000 claims description 7
- 150000001412 amines Chemical class 0.000 claims description 7
- 238000004587 chromatography analysis Methods 0.000 claims description 7
- 239000003954 decarboxylase inhibitor Substances 0.000 claims description 7
- 210000004185 liver Anatomy 0.000 claims description 7
- 238000004809 thin layer chromatography Methods 0.000 claims description 7
- -1 Chelex? Chemical compound 0.000 claims description 6
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-N dimethylselenoniopropionate Natural products CCC(O)=O XBDQKXXYIPTUBI-UHFFFAOYSA-N 0.000 claims description 6
- VHJLVAABSRFDPM-QWWZWVQMSA-N dithiothreitol Chemical compound SC[C@@H](O)[C@H](O)CS VHJLVAABSRFDPM-QWWZWVQMSA-N 0.000 claims description 6
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 239000011572 manganese Substances 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 235000010323 ascorbic acid Nutrition 0.000 claims description 5
- 229960005070 ascorbic acid Drugs 0.000 claims description 5
- 239000011668 ascorbic acid Substances 0.000 claims description 5
- XYEOALKITRFCJJ-UHFFFAOYSA-N o-benzylhydroxylamine Chemical group NOCC1=CC=CC=C1 XYEOALKITRFCJJ-UHFFFAOYSA-N 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 4
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 claims description 4
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 claims description 4
- 235000018417 cysteine Nutrition 0.000 claims description 4
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethyl mercaptane Natural products CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 239000003112 inhibitor Substances 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 claims description 4
- 235000019260 propionic acid Nutrition 0.000 claims description 3
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 claims description 3
- ZNCPFRVNHGOPAG-UHFFFAOYSA-L sodium oxalate Chemical compound [Na+].[Na+].[O-]C(=O)C([O-])=O ZNCPFRVNHGOPAG-UHFFFAOYSA-L 0.000 claims description 3
- 229940039790 sodium oxalate Drugs 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 claims description 2
- SFLSHLFXELFNJZ-CMIMLBRMSA-N 4-[(1r)-2-amino-1-hydroxy-1-tritioethyl]benzene-1,2-diol Chemical class NC[C@@](O)([3H])C1=CC=C(O)C(O)=C1 SFLSHLFXELFNJZ-CMIMLBRMSA-N 0.000 claims 24
- 235000001055 magnesium Nutrition 0.000 claims 20
- 229940091250 magnesium supplement Drugs 0.000 claims 20
- 210000005228 liver tissue Anatomy 0.000 claims 11
- UCTMLZBVNPSJHC-UHFFFAOYSA-N 5-(2-aminoethyl)cyclohexa-2,4-diene-1,2-diol Chemical class NCCC1=CC=C(O)C(O)C1 UCTMLZBVNPSJHC-UHFFFAOYSA-N 0.000 claims 10
- GXVUZYLYWKWJIM-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanamine Chemical compound NCCOCCN GXVUZYLYWKWJIM-UHFFFAOYSA-N 0.000 claims 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims 5
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 claims 4
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 claims 3
- 229940001584 sodium metabisulfite Drugs 0.000 claims 3
- 235000010262 sodium metabisulphite Nutrition 0.000 claims 3
- QNWOSJAGFSUDFE-UHFFFAOYSA-N 5-(aminooxymethyl)-2-bromophenol Chemical compound NOCC1=CC=C(Br)C(O)=C1 QNWOSJAGFSUDFE-UHFFFAOYSA-N 0.000 claims 2
- LJYRLGOJYKPILZ-UHFFFAOYSA-N murexide Chemical compound [NH4+].N1C(=O)NC(=O)C(N=C2C(NC(=O)NC2=O)=O)=C1[O-] LJYRLGOJYKPILZ-UHFFFAOYSA-N 0.000 claims 2
- 229940096717 pamine Drugs 0.000 claims 2
- 125000003944 tolyl group Chemical group 0.000 claims 2
- KHIWWQKSHDUIBK-UHFFFAOYSA-M periodate Chemical compound [O-]I(=O)(=O)=O KHIWWQKSHDUIBK-UHFFFAOYSA-M 0.000 claims 1
- 238000002955 isolation Methods 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 abstract description 4
- 239000000523 sample Substances 0.000 description 30
- 102100040999 Catechol O-methyltransferase Human genes 0.000 description 20
- MWOOGOJBHIARFG-UHFFFAOYSA-N vanillin Chemical compound COC1=CC(C=O)=CC=C1O MWOOGOJBHIARFG-UHFFFAOYSA-N 0.000 description 19
- FGQOOHJZONJGDT-UHFFFAOYSA-N vanillin Natural products COC1=CC(O)=CC(C=O)=C1 FGQOOHJZONJGDT-UHFFFAOYSA-N 0.000 description 19
- 235000012141 vanillin Nutrition 0.000 description 19
- 239000000306 component Substances 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 12
- 239000010410 layer Substances 0.000 description 12
- 230000035945 sensitivity Effects 0.000 description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 11
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 11
- 239000008280 blood Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 11
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 10
- 238000007792 addition Methods 0.000 description 10
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 10
- 235000011130 ammonium sulphate Nutrition 0.000 description 10
- 210000004369 blood Anatomy 0.000 description 10
- YCIMNLLNPGFGHC-UHFFFAOYSA-N catechol Chemical compound OC1=CC=CC=C1O YCIMNLLNPGFGHC-UHFFFAOYSA-N 0.000 description 10
- DEFVIWRASFVYLL-UHFFFAOYSA-N ethylene glycol bis(2-aminoethyl)tetraacetic acid Chemical compound OC(=O)CN(CC(O)=O)CCOCCOCCN(CC(O)=O)CC(O)=O DEFVIWRASFVYLL-UHFFFAOYSA-N 0.000 description 10
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 7
- 241000124008 Mammalia Species 0.000 description 7
- 229960000583 acetic acid Drugs 0.000 description 7
- 239000000872 buffer Substances 0.000 description 7
- 239000003153 chemical reaction reagent Substances 0.000 description 7
- 235000019441 ethanol Nutrition 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 6
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- 241000700159 Rattus Species 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 230000003213 activating effect Effects 0.000 description 6
- JQWHASGSAFIOCM-UHFFFAOYSA-M sodium periodate Chemical compound [Na+].[O-]I(=O)(=O)=O JQWHASGSAFIOCM-UHFFFAOYSA-M 0.000 description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 5
- 229960001570 ademetionine Drugs 0.000 description 5
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 5
- 239000000908 ammonium hydroxide Substances 0.000 description 5
- 238000005119 centrifugation Methods 0.000 description 5
- 238000007069 methylation reaction Methods 0.000 description 5
- 150000005206 1,2-dihydroxybenzenes Chemical class 0.000 description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 4
- 239000012190 activator Substances 0.000 description 4
- 210000005013 brain tissue Anatomy 0.000 description 4
- 239000012153 distilled water Substances 0.000 description 4
- 238000005194 fractionation Methods 0.000 description 4
- 235000003969 glutathione Nutrition 0.000 description 4
- 239000000700 radioactive tracer Substances 0.000 description 4
- 238000000638 solvent extraction Methods 0.000 description 4
- 239000008096 xylene Substances 0.000 description 4
- 241000282326 Felis catus Species 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 239000007853 buffer solution Substances 0.000 description 3
- 239000003729 cation exchange resin Substances 0.000 description 3
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 3
- 238000013375 chromatographic separation Methods 0.000 description 3
- 229940079593 drug Drugs 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011541 reaction mixture Substances 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 150000003738 xylenes Chemical class 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- CNRNYORZJGVOSY-UHFFFAOYSA-N 2,5-diphenyl-1,3-oxazole Chemical compound C=1N=C(C=2C=CC=CC=2)OC=1C1=CC=CC=C1 CNRNYORZJGVOSY-UHFFFAOYSA-N 0.000 description 2
- MSXVEPNJUHWQHW-UHFFFAOYSA-N 2-methylbutan-2-ol Chemical compound CCC(C)(C)O MSXVEPNJUHWQHW-UHFFFAOYSA-N 0.000 description 2
- MGBKJKDRMRAZKC-UHFFFAOYSA-N 3-aminobenzene-1,2-diol Chemical compound NC1=CC=CC(O)=C1O MGBKJKDRMRAZKC-UHFFFAOYSA-N 0.000 description 2
- DIVQKHQLANKJQO-UHFFFAOYSA-N 3-methoxytyramine Chemical compound COC1=CC(CCN)=CC=C1O DIVQKHQLANKJQO-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 102100038238 Aromatic-L-amino-acid decarboxylase Human genes 0.000 description 2
- 241000283690 Bos taurus Species 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 241000699666 Mus <mouse, genus> Species 0.000 description 2
- 206010028980 Neoplasm Diseases 0.000 description 2
- YNYAYWLBAHXHLL-UHFFFAOYSA-N Normetanephrine Chemical compound COC1=CC(C(O)CN)=CC=C1O YNYAYWLBAHXHLL-UHFFFAOYSA-N 0.000 description 2
- 241000283973 Oryctolagus cuniculus Species 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229920006328 Styrofoam Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 239000007983 Tris buffer Substances 0.000 description 2
- 108010035075 Tyrosine decarboxylase Proteins 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 238000011210 chromatographic step Methods 0.000 description 2
- RWGFKTVRMDUZSP-UHFFFAOYSA-N cumene Chemical compound CC(C)C1=CC=CC=C1 RWGFKTVRMDUZSP-UHFFFAOYSA-N 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 229960004756 ethanol Drugs 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 235000019253 formic acid Nutrition 0.000 description 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 2
- 229960000443 hydrochloric acid Drugs 0.000 description 2
- 235000011167 hydrochloric acid Nutrition 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 description 2
- 239000002207 metabolite Substances 0.000 description 2
- 239000012044 organic layer Substances 0.000 description 2
- 208000028591 pheochromocytoma Diseases 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 235000018102 proteins Nutrition 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000002285 radioactive effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000000527 sonication Methods 0.000 description 2
- 239000008261 styrofoam Substances 0.000 description 2
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 2
- JWZZKOKVBUJMES-UHFFFAOYSA-N (+-)-Isoprenaline Chemical compound CC(C)NCC(O)C1=CC=C(O)C(O)=C1 JWZZKOKVBUJMES-UHFFFAOYSA-N 0.000 description 1
- XJKSTNDFUHDPQJ-UHFFFAOYSA-N 1,4-diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=C(C=2C=CC=CC=2)C=C1 XJKSTNDFUHDPQJ-UHFFFAOYSA-N 0.000 description 1
- VBWFMAYZSJVLMJ-UHFFFAOYSA-N 1h-indole-2,3,4-triol Chemical compound C1=CC(O)=C2C(O)=C(O)NC2=C1 VBWFMAYZSJVLMJ-UHFFFAOYSA-N 0.000 description 1
- PGNRLPTYNKQQDY-UHFFFAOYSA-N 2,3-dihydroxyindole Chemical compound C1=CC=C2C(O)=C(O)NC2=C1 PGNRLPTYNKQQDY-UHFFFAOYSA-N 0.000 description 1
- DCJKUXYSYJBBRD-UHFFFAOYSA-N 2,5-diphenyl-1,3,4-oxadiazole Chemical compound C1=CC=CC=C1C1=NN=C(C=2C=CC=CC=2)O1 DCJKUXYSYJBBRD-UHFFFAOYSA-N 0.000 description 1
- WMAXWOOEPJQXEB-UHFFFAOYSA-N 2-phenyl-5-(4-phenylphenyl)-1,3,4-oxadiazole Chemical compound C1=CC=CC=C1C1=NN=C(C=2C=CC(=CC=2)C=2C=CC=CC=2)O1 WMAXWOOEPJQXEB-UHFFFAOYSA-N 0.000 description 1
- MWQWZNFAWAWDQB-UHFFFAOYSA-N 5-(aminooxymethyl)-2-bromophenol;phosphoric acid Chemical compound OP(O)(O)=O.NOCC1=CC=C(Br)C(O)=C1 MWQWZNFAWAWDQB-UHFFFAOYSA-N 0.000 description 1
- 206010002383 Angina Pectoris Diseases 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 102000004031 Carboxy-Lyases Human genes 0.000 description 1
- 108090000489 Carboxy-Lyases Proteins 0.000 description 1
- 241000700199 Cavia porcellus Species 0.000 description 1
- 241000518994 Conta Species 0.000 description 1
- FCKYPQBAHLOOJQ-UHFFFAOYSA-N Cyclohexane-1,2-diaminetetraacetic acid Chemical compound OC(=O)CN(CC(O)=O)C1CCCCC1N(CC(O)=O)CC(O)=O FCKYPQBAHLOOJQ-UHFFFAOYSA-N 0.000 description 1
- 229940081615 DOPA decarboxylase inhibitor Drugs 0.000 description 1
- 239000003109 Disodium ethylene diamine tetraacetate Substances 0.000 description 1
- 241000283073 Equus caballus Species 0.000 description 1
- 102000009123 Fibrin Human genes 0.000 description 1
- 108010073385 Fibrin Proteins 0.000 description 1
- BWGVNKXGVNDBDI-UHFFFAOYSA-N Fibrin monomer Chemical compound CNC(=O)CNC(=O)CN BWGVNKXGVNDBDI-UHFFFAOYSA-N 0.000 description 1
- 239000004471 Glycine Substances 0.000 description 1
- 241000282412 Homo Species 0.000 description 1
- 150000008575 L-amino acids Chemical class 0.000 description 1
- 241000283986 Lepus Species 0.000 description 1
- JWJCTZKFYGDABJ-UHFFFAOYSA-N Metanephrine Chemical compound CNCC(O)C1=CC=C(O)C(OC)=C1 JWJCTZKFYGDABJ-UHFFFAOYSA-N 0.000 description 1
- KWYHDKDOAIKMQN-UHFFFAOYSA-N N,N,N',N'-tetramethylethylenediamine Chemical compound CN(C)CCN(C)C KWYHDKDOAIKMQN-UHFFFAOYSA-N 0.000 description 1
- 206010029260 Neuroblastoma Diseases 0.000 description 1
- YNYAYWLBAHXHLL-MRVPVSSYSA-N Normetanephrine Natural products COC1=CC([C@H](O)CN)=CC=C1O YNYAYWLBAHXHLL-MRVPVSSYSA-N 0.000 description 1
- 241000009328 Perro Species 0.000 description 1
- 241000282898 Sus scrofa Species 0.000 description 1
- 206010000891 acute myocardial infarction Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001919 adrenal effect Effects 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010171 animal model Methods 0.000 description 1
- 239000012223 aqueous fraction Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000003637 basic solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 239000012496 blank sample Substances 0.000 description 1
- 230000037086 body physiology Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- OSQPUMRCKZAIOZ-UHFFFAOYSA-N carbon dioxide;ethanol Chemical compound CCO.O=C=O OSQPUMRCKZAIOZ-UHFFFAOYSA-N 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 238000005277 cation exchange chromatography Methods 0.000 description 1
- 229940023913 cation exchange resins Drugs 0.000 description 1
- 210000003169 central nervous system Anatomy 0.000 description 1
- 229940083181 centrally acting adntiadrenergic agent methyldopa Drugs 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 206010012601 diabetes mellitus Diseases 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 235000019301 disodium ethylene diamine tetraacetate Nutrition 0.000 description 1
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 1
- 239000000534 dopa decarboxylase inhibitor Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- YAGKRVSRTSUGEY-UHFFFAOYSA-N ferricyanide Chemical compound [Fe+3].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-].N#[C-] YAGKRVSRTSUGEY-UHFFFAOYSA-N 0.000 description 1
- 229950003499 fibrin Drugs 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229960002449 glycine Drugs 0.000 description 1
- ACGDKVXYNVEAGU-UHFFFAOYSA-N guanethidine Chemical compound NC(N)=NCCN1CCCCCCC1 ACGDKVXYNVEAGU-UHFFFAOYSA-N 0.000 description 1
- 150000002429 hydrazines Chemical class 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000030214 innervation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 description 1
- 229940011051 isopropyl acetate Drugs 0.000 description 1
- 229940039009 isoproterenol Drugs 0.000 description 1
- GWYFCOCPABKNJV-UHFFFAOYSA-M isovalerate Chemical compound CC(C)CC([O-])=O GWYFCOCPABKNJV-UHFFFAOYSA-M 0.000 description 1
- 238000005567 liquid scintillation counting Methods 0.000 description 1
- 230000001926 lymphatic effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002107 myocardial effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 150000002871 norepinephrines Chemical class 0.000 description 1
- 229940078552 o-xylene Drugs 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229930184652 p-Terphenyl Natural products 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- HKOOXMFOFWEVGF-UHFFFAOYSA-N phenylhydrazine Chemical group NNC1=CC=CC=C1 HKOOXMFOFWEVGF-UHFFFAOYSA-N 0.000 description 1
- 229940067157 phenylhydrazine Drugs 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000012261 resinous substance Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000003375 selectivity assay Methods 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000002594 sorbent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002889 sympathetic effect Effects 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 150000003649 tritium Chemical class 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K38/00—Medicinal preparations containing peptides
- A61K38/16—Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
- A61K38/43—Enzymes; Proenzymes; Derivatives thereof
- A61K38/45—Transferases (2)
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/48—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving transferase
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- Gastroenterology & Hepatology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Microbiology (AREA)
- Biophysics (AREA)
- Biotechnology (AREA)
- Genetics & Genomics (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Enzymes And Modification Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US68199976A | 1976-04-30 | 1976-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1072426A true CA1072426A (en) | 1980-02-26 |
Family
ID=24737774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA275,051A Expired CA1072426A (en) | 1976-04-30 | 1977-03-29 | Catecholamine assay |
Country Status (5)
| Country | Link |
|---|---|
| JP (2) | JPS52133292A (enrdf_load_stackoverflow) |
| CA (1) | CA1072426A (enrdf_load_stackoverflow) |
| DE (1) | DE2717306A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2361656A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1555872A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02146334U (enrdf_load_stackoverflow) * | 1989-05-16 | 1990-12-12 | ||
| CN120214180B (zh) * | 2025-05-28 | 2025-08-19 | 美康生物科技股份有限公司 | 一种从尿液中提取8种儿茶酚胺及其代谢物的样本前处理方法及试剂盒 |
-
1977
- 1977-03-29 CA CA275,051A patent/CA1072426A/en not_active Expired
- 1977-04-19 DE DE19772717306 patent/DE2717306A1/de not_active Withdrawn
- 1977-04-21 GB GB1658077A patent/GB1555872A/en not_active Expired
- 1977-04-29 FR FR7713039A patent/FR2361656A1/fr active Granted
- 1977-04-30 JP JP5062877A patent/JPS52133292A/ja active Granted
-
1984
- 1984-01-17 JP JP620684A patent/JPS6037998A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52133292A (en) | 1977-11-08 |
| JPS6037998A (ja) | 1985-02-27 |
| JPS6258720B2 (enrdf_load_stackoverflow) | 1987-12-07 |
| GB1555872A (en) | 1979-11-14 |
| JPS6129720B2 (enrdf_load_stackoverflow) | 1986-07-08 |
| DE2717306A1 (de) | 1977-11-10 |
| FR2361656B1 (enrdf_load_stackoverflow) | 1983-07-08 |
| FR2361656A1 (fr) | 1978-03-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Passon et al. | A simplified radiometric assay for plasma norepinephrine and epinephrine | |
| MURPHY | ‘Sephadex’column chromatography as an adjunct to competitive protein binding assays of steroids | |
| Markert et al. | Multiple forms of enzymes: tissue, ontogenetic, and species specific patterns | |
| Abraham et al. | The distribution of homocarnosine in mammals | |
| Levitzki et al. | The binding characteristics and number of β-adrenergic receptors on the turkey erythrocyte | |
| Holly et al. | The estimation of catecholamines in human plasma | |
| Samuels et al. | Thyroid hormone action in cell culture: demonstration of nuclear receptors in intact cells and isolated nuclei | |
| Levy et al. | Studies on the biosynthesis of cholesterol. 10. Mevalonic kinase and phosphomevalonic kinase from liver | |
| US4366242A (en) | Method and agent for the immunological determination of enzymes | |
| US4288542A (en) | Radioenzymatic assay of catecholamines | |
| Gilberstadt et al. | Determination of picomole quantities of acetylcholine and choline in physiologic salt solutions | |
| JPS6112547B2 (enrdf_load_stackoverflow) | ||
| Ritter et al. | Improved radioimmunoassay for creatine kinase isoenzymes in plasma. | |
| US4035155A (en) | Method of high speed scintillation autoradiography | |
| US4284587A (en) | Radioenzymatic assay of catecholamines | |
| CA1072426A (en) | Catecholamine assay | |
| US4242456A (en) | Radioenzymatic assay of catecholamines | |
| US4287368A (en) | Method for preparing vanillin and composition therefor | |
| US4242222A (en) | Radioenzymatic assay of catecholamines | |
| US4423144A (en) | Radioenzymatic assay of catecholamines | |
| Goldberg et al. | Analysis of cyclic 3′, 5′‐adenosine monophosphate and cyclic 3′, 5′‐guanosine monophosphate | |
| Ito et al. | Reversible inhibition by human serum lipoproteins of cell proliferation | |
| Welsch | Choline acetyltransferase in aneural tissue: Evidence for the presence of the enzyme in the placenta of the guinea pig and other species | |
| Davis et al. | Determination of serotonin in tissues using an ion-exchange resin | |
| Fisch et al. | A Covalent Protein· Sepharose Complex for the Specific Adsorption and Assay of Adenosine 3′: 5′‐Monophosphate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |