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An x-ray structural investigation (diffractometer, Cu, 1001 reflections, direct method, MLS in the anisotropic approximation to R… Expand

ConclusionsOn the basis of the results of a comparison of the mass spectra of macrocyclic pyrrolizidine alkaloids with a known… Expand

We have applied a high-speed counter-current chromatography (CCC) technique to the separation and purification of pyrrolizidine… Expand

accumulation ofIPswitha halfmaximal response(EC50) at17.6 ± 3.5and26.6 +5.3nM, respectively, while theBI-selective agonist… Expand

(5-CT), inhibited bymethiothepin, vagosympathectomy andsympatho-inhibitory drugs, andresistant toblockadebyritanserin andMDL… Expand

Background andPurpose: Theaimofthis study was toinvestigate theregional differences intheinvivo vasodilator… Expand

1 Ringpreparations fromthecarotid, coronary,renal, mesenteric andfemoral arteries ofthedog wereprecontracted withthethromboxane… Expand

ofClinical VeterinaryMedicine, University ofCambridge, Madingley Road, Cambridge CB3OES, U.K., and$DepartmentofBiochemistry… Expand

 

Theepithelium ofthegastrointestinal tract isoneof themostrapidly regenerating tissues ofthebody. Cells divide inthemucosal pits… Expand