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Camillo Golgi

Italian cytologist and histologist (1843–1926)

Born at Corteno near Brescia (now in Italy), Golgi studied medicine at Pavia University and thereafter mainly concerned himself with research on cells and tissues. In 1873, while serving as physician at the home for incurables, Abbiategrasso, he devised a method of staining cells by means of silver salts. This allowed the fine processes of nerve cells to be distinguished in greater detail than before and enabled Golgi to confirm Wilhelm von Waldeyer's view that nerve cells do not touch but are separated by gaps called synapses. Golgi also found a specialized type of nerve cell, later called the Golgi cell, which, by means of fingerlike projections (dendrites), serves to connect many other nerve cells. This discovery led to the formulation (by Waldeyer) and establishment (by Santiago Ramón y Cajal) of the neuron theory – a theory that Golgi was nevertheless strongly opposed to.

Golgi was also the first to draw attention to the Golgi bodies: flattened cavities parallel to the cell's nuclear membrane whose function appears to be packaging and exporting various materials from the cell. Apart from work on the sense organs, muscles, and glands, Golgi studied varying forms of malaria. He found that different species of the protozoan parasite Plasmodium are responsible for the two types of intermittent fever – the tertian and quartan. He also established that the onset of fever coincides with the release into the blood of the parasitic spores from the red blood cells.

Golgi served as professor of histology (1876) and then of general pathology (1881) at Pavia University. In 1906 he shared with Ramón y Cajal the Nobel Prize for physiology or medicine for his work on the structure of the human nervous system.

 
 

Golgi, 1906
(click to enlarge)
Golgi, 1906 (credit: Courtesy of the Wellcome Trustees)
(born July 7, 1843/44, Corteno, Italy — died Jan. 21, 1926, Pavia) Italian physician and cytologist. He devised a way to stain nerve tissue and with it discovered a neuron, now called the Golgi cell, that has many short, branching extensions (dendrites) and connects other neurons. This led to identification of the neuron as the basic structural unit of the nervous system. He also discovered the Golgi tendon organ (the point at which sensory nerve fibres branch out within a tendon) and the Golgi apparatus (a cell organelle that packages large molecules for transport). He shared a 1906 Nobel Prize with Santiago Ramón y Cajal (b. 1852 — d. 1934).

For more information on Camillo Golgi, visit Britannica.com.

 
Columbia Encyclopedia: Golgi, Camillo
(kämēl'lō gôl') , 1844–1926, Italian physician, noted as a neurologist and histologist. He shared with Ramón y Cajal the 1906 Nobel Prize in Physiology or Medicine for work on the structure of the nervous system. He introduced (c.1870) a method of staining nerve tissue with silver nitrate that he used (1883) to demonstrate certain nerve cells (Golgi cells) in the central nervous system. He observed (1909) the Golgi apparatus, a part of the cytoplasm distinguishable by special staining and known as the Golgi bodies when in the form of separate particles. He recognized that the three types of malaria are caused by different protozoan organisms. Golgi taught at the Univ. of Pavia from 1875.
 
Wikipedia: Camillo Golgi
Camillo Golgi, 1906.
Camillo Golgi, 1906.

Camillo Golgi (July 7, 1843January 21, 1926) was an Italian physician and scientist.

Biography

Golgi was born in Corteno (now Corteno Golgi, province of Brescia, Lombardy). His father was a physician and district medical officer. Golgi studied medicine at University of Pavia, where he worked in the experimental pathology laboratory under Giulio Bizzozero, who elucidated the properties of bone marrow. He graduated in 1865. He spent much of his career studying the central nervous system. Tissue staining techniques in the latter half of the 19th century were inadequate for studying nervous tissue. While working as chief medical officer in a psychiatric hospital, he experimented with metal impregnation of nervous tissue, using mainly silver (silver staining). He discovered a method of staining nervous tissue which would stain a limited number of cells at random, in their entirety. This enabled him to view the paths of nerve cells in the brain for the first time. He called his discovery the "black reaction" (in Italian, reazione nera), which later received his name (Golgi's method) or Golgi stain. The reason for the random staining is still not understood.

Drawing by Camillo Golgi of a hippocampus stained with the silver nitrate method.
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Drawing by Camillo Golgi of a hippocampus stained with the silver nitrate method.

The black reaction consisted in fixing silver chromate particles to the neurilemma (the neuron membrane) by reacting silver nitrate with potassium dichromate. This resulted in a stark black deposit on the soma as well as on the axon and all dendrites, providing an exceedingly clear and well contrasted picture of neuron against a yellow background. The ability to visualize separate neurons led to the eventual acceptance of the neuron doctrine. [1]

In addition to this discovery, Golgi discovered a tendon sensory organ that bears his name (Golgi receptor). He studied the life cycle of Plasmodium falciparum and related the timing of fevers seen in malaria with the life cycle of this organism. Using his staining technique, Golgi identified the intracellular reticular apparatus in 1898 which bears his name, the Golgi apparatus.

In renal physiology Golgi is renown for being the first to show that the distal tubulus of the nephron returns to its originating glomerulus (nerve ending of the Bombula) a finding that he published in 1889 ("Annotazioni intorno all'Istologia dei reni dell'uomo e di altri mammifieri e sull'istogenesi dei canalicoli oriniferi". Rendiconti R. Acad. Lincei 5: 545-557, 1889.).

Golgi, together with Santiago Ramón y Cajal, received the Nobel Prize in Physiology or Medicine in 1906 for his studies of the structure of the nervous system.

Golgi died in Pavia, Italy, in January 1926.

Golgi’s landmarks in Pavia

In Pavia several landmarks stand as Golgi’s memory.

  • A marble statue, in a yard of the old buildings of the University of Pavia, at N.65 of the central “Strada Nuova”. On the basament, there is the following inscription in Italian language: "Camillo Golgi / patologo sommo / della scienza istologica / antesignano e maestro / la segreta struttura / del tessuto nervoso / con intenta vigilia / sorprese e descrisse / qui operò / qui vive / guida e luce ai venturi / MDCCCXLIII - MCMXXVI" (Camillo Golgi / outstanding pathologist / of histological science / precursor and master / the secret structure / of the nervous tissue / with strenuous effort / discovered and described / here he worked / here he lives / here he guides and enlightens future scholars / 1843 - 1926).
  • "Golgi’s home", also in Strada Nuova, at N.77, a few hundreds meters away from the University, just in front to the historical “Teatro Fraschini”. It is the home in which Golgi spent the most of his family life, with his wife Lina.
  • Golgi’ tomb is in the Monumental Cemetery of Pavia (viale San Giovannino), along the central lane, just before the big monument to the falls of the First World War. It is a very simple granite grave, with a bronze medallion representing the scientist’s profile. Near Golgi’s tomb, apart his wife, other two important italian medical scientists are buried: Bartolomeo Panizza and Adelchi Negri.

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    Scientist. A Dictionary of Scientists. Copyright © Market House Books Ltd 1993, 1999, 2003. All rights reserved.  Read more
    Britannica Concise Encyclopedia. Britannica Concise Encyclopedia. © 2006 Encyclopædia Britannica, Inc. All rights reserved.  Read more
    Columbia Encyclopedia. The Columbia Electronic Encyclopedia, Sixth Edition Copyright © 2003, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/  Read more
    Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Camillo Golgi" Read more

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