Louis-Charles Malassez

Louis-Charles Malassez

Louis-Charles Malassez (21 September 1842 – 1909) was a French scientist who was born in Nevers, France. He is known for his scientific work done in the medical laboratories at the Collège de France.

Malassez is credited for the invention of the hemocytometer, an apparatus used to quantatively measure blood cells. In the field of dentistry, he described residual cells of the epithelial root sheath in the periodontal ligament. These remaining cells are now known as the epithelial cell rests of Malassez (ERM).

A genus of fungi called "Malassezia" bears his name. The species in the genus include: "Malassezia furfur", "Malassezia ovalis", "Malassezia pachydermatis", "Malassezia sympodialis" and "Malassezia orbiculare". "Malassezia furfur" is a lipophilic species that forms on human skin and can cause seborrheic dermatitis and tinea versicolor, "Malassezzia pachydermatis" is a species that is associated with otitis externa in dogs.

References

* [http://www.mercksource.com/pp/us/cns/cns_hl_dorlands.jspzQzpgzEzzSzppdocszSzuszSzcommonzSzdorlandszSzdorlandzSzdmd_m_02zPzhtm Dorlands's Medical Dictionary, Definition of Malassezia species & Cell rests]
* [http://www.annclinlabsci.org/cgi/search?andorexactfulltext=and&resourcetype=1&disp_type=&sortspec=relevance&author1=&fulltext=hemocytometer&pubdate_year=&volume=&firstpage= Annals of Clinical & Laboratory Science]

; Sources consulted

; Endnotes


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  • Louis-Charles Malassez — (* 21. September 1842 in Nièvre; † 1909) war ein französischer Mediziner und Bakteriologe. Inhaltsverzeichnis 1 Leben und Wirken 2 Ehrungen 3 Schriften (Auswahl) …   Deutsch Wikipedia

  • Louis-Charles Malassez — (21 Septembre 1842 – 1909) était un scientifique français né à Nevers. Il est connu pour son travail scientifique au laboratoire médical du Collège de France. Il fut élève de Claude Bernard et un des professeurs de Justin Marie Jolly. Malassez… …   Wikipédia en Français

  • Louis Charles Malassez — (21 Septembre 1842 – 1909) était un scientifique français né à Nevers. Il est connu pour son travail scientifique au laboratoire médical du Collège de France. Il fut élève de Claude Bernard et un des professeurs de Justin Marie Jolly. Malassez… …   Wikipédia en Français

  • Malassez — Louis Charles Malassez (* 21. September 1842 in Nièvre; † 1909) war ein französischer Mediziner und Bakteriologe. Inhaltsverzeichnis 1 Leben und Wirken 2 Ehrungen 3 Schriften (Auswahl) 4 Nachweise …   Deutsch Wikipedia

  • Malassez rest — Ma·las·sez rest (mah″lah saґ) [Louis Charles Malassez, French physiologist, 1842–1909] see under rest …   Medical dictionary

  • Epithelial cell rests of Malassez — In dentistry, the epithelial cell rests of Malassez or epithelial rests of Malassez (frequently abbreviated as ERM) are part of the periodontal ligament cells around a tooth. They are discrete clusters of residual cells from Hertwig s epithelial… …   Wikipedia

  • Liste der Biografien/Mal — Biografien: A B C D E F G H I J K L M N O P Q …   Deutsch Wikipedia

  • Malasseziales — Malassezia Malassezia lipophilis (REM Aufnahme) Systematik Abteilung: Basidienpilze …   Deutsch Wikipedia

  • Pityrosporum ovale — Malassezia furfur Malassezia furfur (REM Aufnahme) Systematik Klasse: Ustilaginomycetes …   Deutsch Wikipedia

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