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  • 1
    Electronic Resource
    Electronic Resource
    Examination of possible renal origin of the humoral factor responsible for saline diuresis in the dog (1969)
    Springer
    Pflügers Archiv 312 (1969), S. 99-109 
    Details
    ISSN: 1432-2013
    Keywords: Cross-circulation ; Renal Venous Blood ; Saline Diuresis ; Renal Sodium Excretion ; Filtered Sodium Load ; Sodium Excreting Factor ; Renal Hormone
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The hypothesis of renal origin of the humoral factor responsible for the natriuresis which follows saline infusion in the dog was tested in a cross-circulation model especially designed for the purpose. Renal venous blood of saline loaded donor dogs was pumped directly into the system perfusing the right (“assay”) kidney of oliguric recipient animals. In control and recovery periods, recipients own renal venous blood was substituted for the blood of saline-infused donors. Sodium excretion increased slightly from the control value of 2.8±1.2 (S.D.) to 4.7±3.5 μEq/min (68 per cent increase,p〈0.05), but only slight recovery toward control rate was noted within 25 min of cessation of cross-circulation. Simultaneously, filtered sodium decreased slightly from 2.8±1.15 (S.D.) to 2.7±1.10 mEq/min. Glomerular filtration rate (C CR) and effective renal plasma flow (C PAH) decreased gradually during the experiment. Urine flow,U/P osm, hematocrit, and perfusion pressure of the “assay” kidney showed only minor changes. Since the slight increase in sodium excretion during cross-circulation constituted but a small fraction of natriuresis observed in saline-loaded donors, it was concluded that the results are incompatible with the release from the kidney of saline-infused animals of a potent natriuretic factor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00588535
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  • 2
    Electronic Resource
    Electronic Resource
    Synthesis and field testing of enantiomers of 6Z,9Z-cis-3,4-epoxydienes as sex attractants for geometrid moths (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 2317-2339 
    Details
    ISSN: 1573-1561
    Keywords: Lepidoptera ; Geometridae ; sex pheromone ; sex attractant ; behavioral antagonist ; enantiomer ; (6Z,9Z,3S,4R)-epoxy-heptadecadiene ; (6Z,9Z,3R,4S)-epoxy-heptadecadiene ; (3Z,9Z,6S,7R)-epoxyheptadecadiene ; (6Z,9Z,3S,4R)-epoxy-nonadecadiene ; (6Z,9Z,3R,4S)-epoxy-nonadecadiene
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract Stereoselective syntheses of chiral C17 to C21 6Z,9Z-cis-3,4-epoxydienes were developed. Field tests of the enantiomerically enriched epoxides as components of synthetic sex attractant lures were carried out, and those with C17 and C19 chain lengths, particularly, were attractive to male moths of several species. Moths were usually specifically attracted by one of a pair of enantiomers, and the opposite enantiomer could actually be a behavioral antagonist. Males belonging to nine species of Geometridae were captured.Probole amicaria (Herrich-Schäffer) males were taken in traps baited with the mixture (6Z,9Z,3S,4R)-epoxy-nonadecadiene (6Z,9Z,3S,4R-epoxy-19∶H) + 3Z,9Z,6R,7S-epoxy-19∶H + 3Z,6Z,9Z-19∶H(9∶1∶8). Other species responding to the C19 compounds included (attractant components follow in parentheses);Sicya macularia (Harris) (6Z,9Z,3S,4R-epoxy-19∶H + 3Z,6Z,9Z-19∶H),Anavitrinella pampinaria (Guenée) (6Z,9Z-cis-3,4-epoxy-19∶H + 3Z,9Z,6S,7R-epoxy-19∶H), andLycia ursaria (Walker) (6Z,9Z-3S, 4R-epoxy-19∶H + 3Z,6Z,9Z-19∶H). Males of the following species were captured byC 17 epoxides:Itame occiduaria (Packard) (6Z,9Z,3R,4S-epoxy-17∶H + 3Z,6Z,9Z-17∶H),Itame brunneata (Thunberg) (6Z,9Z,3S,4R-epoxy-17∶H),Epelis truncataria (Walker) (both enantiomers of 6Z,9Z-cis-3,4-epoxy-17∶H),Semiothisa ulsterata (Pearsall) (3Z,9Z-6S,7R-epoxy-17∶H), andS. signaria dispuncta (Walker) (3Z,9Z-cis-6,7-epoxy-17∶H + 3Z,6Z,9Z-17∶H). The interactions among enantiomers and regioisomers are discussed as a mechanism by which cross attraction between sympatric species is limited.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01026941
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    Paper (German National Licenses)
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