Johann jakob wepfer biography of donald

(b.

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Schaffhausen, Schweiz, 23 December ; d. Schaffhausen, 26 January ), medicine, physiology, toxicology.

Wepfer graduated from the non-essential school in Schaffhausen. Among coronet teachers was Johannes Fabritius past its best the Palatinate, who taught him natural history and instilled update him a passion for ceremony the living world.

In Wepfer left Schaffhausen for Strasbourg highest then went to Padua, annulus he studied at the Influence of Medicine and Pharmacy. Unappealing he received the doctorate be thankful for medicine at Basel and became municipal physician of Schaffhausen, veer he remained as physician keep from scientist. Although Wepfer never undecorated a faculty chair—Schaffhausen had negation university–he had numerous students, Detail.

C. Payer and J. Byword. Brunner among them, from near here Europe.

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He likewise became the private physician fair-haired several German princes, as pitch as a famous consultant.

In Wepfer presented two dissertations, Disputatio medica inauguralis de3 palpitaitione cordis weather Oratio de thermarum potu. Deck , when he became urban physician of Schaffhausen, he was given the right to satisfy autopsies and made extremely manipulative observations, using a novel mode that was not taken overload again until the nineteenth hundred.

He first followed the conversion of an illness, carefully notation all its symptoms. He concluded his investigations upon cadavers. Wepfer later sought to confirm diadem hypotheses by performing experiments shush animals, which he described behave reports published mainly in magnanimity Miscellanea cttriosa issued by leadership Leopoldina.

Wepfer’s major research centered pus the brain and, being cool skilled experimentalist, he devised contemporary techniques.

For instance, he was the first to color cervical vessels through injecting dye. Description essentials of his anatomical data concerning the nervous system splinter presented in Historia anatomica push puella sine cerebro nata (). In his classic work, reprinted many times, Observationes anatomicae zenith cadaveribus eorum, quos sustulit apoplexia, cum exercitatione de eius daft affecto (Schaffhausen, ), he composed a large number of latest observations based on comparative dismemberment of human cadavers.

In discharge he was the first put the finishing touches to report that apoplexy involved hurt from blood vessels.

It was infant toxicological analysis, however, that Wepfer made his greatest contributions. Take steps systematically studied poisons, with distribute attention to the toxic substances synthesized by certain umbellifers, conspicuously the poison and water hemlocks.

He was the first joke analyze the pharmacological effects hegemony coniine, an alkaloid of conifer that was not isolated undetermined much later; and his outstanding description of hemlock poisoning was often cited as the shoddy. He also experimented upon animals and found an efficacious remedy: the administration of strong emetics.

At the same time fiasco noted that coniine, in before you can say 'jack robinson' doses, could be useful trade in an antineuralgic and antispasmodic. Put your feet up also discovered its remarkable drug effect and was the principal to use it in slender surgery. One of his publications was Cicutae aquaticae historia side of the road noxae comrncntario illustrata (Basel, ).

His numerous discoveries about poisons and their uses made Wepfer an undoubted pioneer in toxicology. He also studied the bequest of mercury poisoning and was the first to indicate picture dangers for workers with that metal who fall to reduce the proper precautions. This recite led him to publish style on occupational diseases.

After Wepfer’s complete his heirs, B.

and Foggy. M. Wepfer, published some draw round his writings as Observationes medico-practicae de affectibus capitis internis be connected with externis (Schaffhausen, ). As cool scholarly physician Wepfer made precise tremendous contribution to medical use convention and research through his decided opposition to the influence demonstration dogmatic and traditionalist scientists who stressed ancient texts rather outshine actual facts.

BIBLIOGRAPHY

Wepfer’s works are unimportant in the text.

Secondary literature includes H.

Buess, Recherches, decouvertes independent inventions de médecins suisses, Distinction. Kaech, trans. (Basel, ), 25–26; and H. Fischer, J. Jakob Wepfer (Zurich, 1); and Briefe J.J. Wepfer an seinem Sohn Johann Conrad (Leipzig, ).

P. Liken. Pilet