Étienne-Émile Baulieu
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Étienne-Émile Baulieu (born 12 December 1926) is a French
biochemist Biochemists are scientists who are trained in biochemistry. They study chemical processes and chemical transformations in living organisms. Biochemists study DNA, proteins and Cell (biology), cell parts. The word "biochemist" is a portmanteau of ...
and
endocrinologist Endocrinology (from ''endocrine'' + '' -ology'') is a branch of biology and medicine dealing with the endocrine system, its diseases, and its specific secretions known as hormones. It is also concerned with the integration of developmental events ...
who is best known for his research in the field of
steroid hormone A steroid hormone is a steroid that acts as a hormone. Steroid hormones can be grouped into two classes: corticosteroids (typically made in the adrenal cortex, hence ''cortico-'') and sex steroids (typically made in the gonads or placenta). Wi ...
s and their role in
reproduction Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents. Reproduction is a fundamental feature of all known life; each individual or ...
and
aging Ageing ( BE) or aging ( AE) is the process of becoming older. The term refers mainly to humans, many other animals, and fungi, whereas for example, bacteria, perennial plants and some simple animals are potentially biologically immortal. In ...
.


Biography

Baulieu was born Émile Blum to Jewish parents in
Strasbourg Strasbourg (, , ; german: Straßburg ; gsw, label=Bas Rhin Alsatian, Strossburi , gsw, label=Haut Rhin Alsatian, Strossburig ) is the prefecture and largest city of the Grand Est region of eastern France and the official seat of the Eu ...
,
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
. His father, who died when he was four was
Léon Blum André Léon Blum (; 9 April 1872 – 30 March 1950) was a French socialist politician and three-time Prime Minister. As a Jew, he was heavily influenced by the Dreyfus affair of the late 19th century. He was a disciple of French Socialist le ...
, a physician, and an early specialist in diabetes. Baulieu changed his name during World War II when his family fled to the area near Grenoble and he engaged in the
French resistance The French Resistance (french: La Résistance) was a collection of organisations that fought the German occupation of France during World War II, Nazi occupation of France and the Collaborationism, collaborationist Vichy France, Vichy régim ...
. After the war he attended the
Faculté de Médecine de Paris , image_name = Coat of arms of the University of Paris.svg , image_size = 150px , caption = Coat of Arms , latin_name = Universitas magistrorum et scholarium Parisiensis , motto = ''Hic et ubique terrarum'' (Latin) , mottoeng = Here and a ...
and became a doctor of medicine in 1955. He studied further under his mentor Max Fernand Jayle in the field of
steroid hormone A steroid hormone is a steroid that acts as a hormone. Steroid hormones can be grouped into two classes: corticosteroids (typically made in the adrenal cortex, hence ''cortico-'') and sex steroids (typically made in the gonads or placenta). Wi ...
s and obtained his PhD degree in 1963 at the Lycée Pasteur, Faculté de Médecine and Faculté des Sciences in Paris. In 1963 Baulieu was named director of INSERM, and in 1970 he became a Professor of
Biochemistry Biochemistry or biological chemistry is the study of chemical processes within and relating to living organisms. A sub-discipline of both chemistry and biology, biochemistry may be divided into three fields: structural biology, enzymology and ...
at the Faculty of Medicine of Bicêtre, affiliated with
University of Paris , image_name = Coat of arms of the University of Paris.svg , image_size = 150px , caption = Coat of Arms , latin_name = Universitas magistrorum et scholarium Parisiensis , motto = ''Hic et ubique terrarum'' (Latin) , mottoeng = Here and a ...
-South. Since 2004 Baulieu is a member of the French "Ethical Advisory Committee" (Comité consultatif national d'éthique) for science and health. He also presides over the "Institute of Longevity and Aging" (Institut de la longévité et du vieillissementOfficial site
/ref>) In 2008, he started the ''Institut Professor Baulieu'' to foster research into healthy
longevity The word " longevity" is sometimes used as a synonym for "life expectancy" in demography. However, the term ''longevity'' is sometimes meant to refer only to especially long-lived members of a population, whereas ''life expectancy'' is always d ...
.Site of the "Institut Baulieu" (French)
/ref>


Research

Baulieu has had an ongoing interest in dehydroepiandrosterone (
DHEA Dehydroepiandrosterone (DHEA), also known as androstenolone, is an endogenous steroid hormone precursor. It is one of the most abundant circulating steroids in humans. DHEA is produced in the adrenal glands, the gonads, and the brain. It functio ...
). In 1960 he demonstrated that DHEA was the main
adrenal The adrenal glands (also known as suprarenal glands) are endocrine glands that produce a variety of hormones including adrenaline and the steroids aldosterone and cortisol. They are found above the kidneys. Each gland has an outer cortex which ...
androgen An androgen (from Greek ''andr-'', the stem of the word meaning "man") is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This inc ...
, was largely conjugated as a hydrophilic
sulfate The sulfate or sulphate ion is a polyatomic anion with the empirical formula . Salts, acid derivatives, and peroxides of sulfate are widely used in industry. Sulfates occur widely in everyday life. Sulfates are salts of sulfuric acid and many ar ...
, and described its metabolism and functions. He worked to uncover the production of
estrogen Estrogen or oestrogen is a category of sex hormone responsible for the development and regulation of the female reproductive system and secondary sex characteristics. There are three major endogenous estrogens that have estrogenic hormonal acti ...
s by the
placenta The placenta is a temporary embryonic and later fetal organ that begins developing from the blastocyst shortly after implantation. It plays critical roles in facilitating nutrient, gas and waste exchange between the physically separate mater ...
during pregnancy and this led to the concept of DHEA being a "
prohormone A prohormone is a committed Precursor (chemistry), precursor of a hormone consisting of peptide hormones synthesized together that has a minimal hormonal effect by itself because of its expression-suppressing structure, often created by protein fol ...
". Upon the invitation of Seymour Lieberman Baulieu became visiting scientist at the Columbia University in 1961–1962, and during this time he met
Gregory Pincus Gregory Goodwin Pincus (April 9, 1903 – August 22, 1967) was an American biologist and researcher who co-invented the combined oral contraceptive pill. Early life Gregory Goodwin Pincus was born in Woodbine, New Jersey to Jewish parents, who we ...
, the father of the "
birth control pill The combined oral contraceptive pill (COCP), often referred to as the birth control pill or colloquially as "the pill", is a type of birth control that is designed to be taken orally by women. The pill contains two important hormones: progest ...
". Baulieu then turned to more studies in contraception and in the regulation of fertility and pregnancy. He became a pioneer in the description of intracellular sex
steroid receptor Steroid hormone receptors are found in the nucleus, cytosol, and also on the plasma membrane of target cells. They are generally intracellular receptors (typically cytoplasmic or nuclear) and initiate signal transduction for steroid hormones which ...
s and identified major intracellular participants such as the
heat shock protein Heat shock proteins (HSP) are a family of proteins produced by cells in response to exposure to stressful conditions. They were first described in relation to heat shock, but are now known to also be expressed during other stresses including expo ...
s. He worked on the
progesterone receptor The progesterone receptor (PR), also known as NR3C3 or nuclear receptor subfamily 3, group C, member 3, is a protein found inside cells. It is activated by the steroid hormone progesterone. In humans, PR is encoded by a single ''PGR'' gene resid ...
and
androgen receptor The androgen receptor (AR), also known as NR3C4 (nuclear receptor subfamily 3, group C, member 4), is a type of nuclear receptor that is activated by binding any of the androgenic hormones, including testosterone and dihydrotestosterone in th ...
. While steroid receptors are generally found within the cell, Baulieu identified a membrane receptor for a steroid hormone in
Xenopus laevis The African clawed frog (''Xenopus laevis'', also known as the xenopus, African clawed toad, African claw-toed frog or the ''platanna'') is a species of African aquatic frog of the family Pipidae. Its name is derived from the three short claws ...
.


Neurosteroids

Baulieu discovered that DHEA and
pregnenolone Pregnenolone (P5), or pregn-5-en-3β-ol-20-one, is an endogenous steroid and precursor/ metabolic intermediate in the biosynthesis of most of the steroid hormones, including the progestogens, androgens, estrogens, glucocorticoids, and mineraloc ...
are produced in the
brain A brain is an organ that serves as the center of the nervous system in all vertebrate and most invertebrate animals. It is located in the head, usually close to the sensory organs for senses such as vision. It is the most complex organ in a v ...
and introduced the term "
neurosteroid Neurosteroids, also known as neuroactive steroids, are endogenous or exogenous steroids that rapidly alter neuronal excitability through interaction with ligand-gated ion channels and other cell surface receptors. The term ''neurosteroid'' was coin ...
s" in 1981. These steroids are active in the nervous system, help repair
myelin Myelin is a lipid-rich material that surrounds nerve cell axons (the nervous system's "wires") to insulate them and increase the rate at which electrical impulses (called action potentials) are passed along the axon. The myelinated axon can be ...
, protect the nervous system, and enhance memory. Such agents may prove to be useful in the maintenance of brain function during age, and Baulieu suggests that use of DHEA in the elderly may ameliorate certain age-associated deficits including memory loss and depressive mood. Baulieu conducts clinical research about the potential benefits of DHEA in the elderly population.


RU486

Baulieu is worldwide known for his work on
RU486 Mifepristone, also known as RU-486, is a medication typically used in combination with misoprostol to bring about a medical abortion during pregnancy and manage early miscarriage. This combination is 97% effective during the first 63 days of p ...
(Mifepristone) and has been termed the "Father" of the
abortion pill A medical abortion, also known as medication abortion, occurs when drugs (medication) are used to bring about an abortion. Medical abortions are an alternative to surgical abortions such as vacuum aspiration or dilation and curettage. Medical ...
. Baulieu who had identified the progesterone receptor suggested to
Roussel-Uclaf Roussel Uclaf S.A. was a French pharmaceutical industry, pharmaceutical company and one of several predecessor companies of today's Sanofi. It was the second largest French pharmaceutical company before it was acquired by Hoechst AG of Frankfurt ...
to modify the progesterone molecule to create an anti-progesterone. Georges Teutsch then synthesized an agent that became initially known as RU468 in 1980. Baulieu investigated the actions of this agent as an anti-
progesterone Progesterone (P4) is an endogenous steroid and progestogen sex hormone involved in the menstrual cycle, pregnancy, and embryogenesis of humans and other species. It belongs to a group of steroid hormones called the progestogens and is the m ...
steroid that proved to be able to induce early abortion and became more effective in conjunction with
misoprostol Misoprostol is a synthetic prostaglandin medication used to prevent and treat stomach and duodenal ulcers, induce labor, cause an abortion, and treat postpartum bleeding due to poor contraction of the uterus. Misoprostol is taken by mouth wh ...
. As a proponent of a nonsurgical approach to
abortion Abortion is the termination of a pregnancy by removal or expulsion of an embryo or fetus. An abortion that occurs without intervention is known as a miscarriage or "spontaneous abortion"; these occur in approximately 30% to 40% of pregn ...
Baulieu became an advocat RU468 even when the company withdrew from the product and propelled him into the limelight of the
abortion debate The abortion debate is a longstanding, ongoing controversy that touches on the moral, legal, medical, and religious aspects of induced abortion. In English-speaking countries, the debate most visibly polarizes around adherents of the self-describ ...
. As an anti-progesterone RU468 also has other potential such as in the treatment of certain conditions (breast cancer, brain cancer, endometriosis, diabetes, hypertension), and the anti- cortison activity he discovered may be useful to manage depression or Cushing's syndrome.


Longevity

Baulieu has taken increasingly more interest in what he has called the "
longevity The word " longevity" is sometimes used as a synonym for "life expectancy" in demography. However, the term ''longevity'' is sometimes meant to refer only to especially long-lived members of a population, whereas ''life expectancy'' is always d ...
revolution", that people are living longer, and its implications. As part of this, he is investigating the potential of hormonal substitution such as DHEA to increase well-being in old age. The creation of the "Institute Baulieu" has started to address issues that are detrimental to health in people of age. Currently, the institute is working on ways to decrease dependability problems of the elderly.


Honours and awards

* 1967 Chevalier of the
Ordre national du Mérite The Ordre national du Mérite (; en, National Order of Merit) is a French order of merit with membership awarded by the President of the French Republic, founded on 3 December 1963 by President Charles de Gaulle. The reason for the order's esta ...
* 1982
French Academy of Sciences The French Academy of Sciences (French: ''Académie des sciences'') is a learned society, founded in 1666 by Louis XIV of France, Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific me ...
, President, 2003–4 * 1989
Albert Lasker Award for Clinical Medical Research Lasker-DeBakey Clinical Medical Research Award is one of four annual awards presented by the Lasker Foundation. The Lasker-DeBakey award is given to honor outstanding work for the understanding, diagnosis, prevention, treatment, and cure of disea ...
, * 1990
National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nati ...
* 1990 Grand Officier of the
Légion d'honneur The National Order of the Legion of Honour (french: Ordre national de la Légion d'honneur), formerly the Royal Order of the Legion of Honour ('), is the highest French order of merit, both military and civil. Established in 1802 by Napoleon ...
* 1990 Golden Plate Award of the
American Academy of Achievement The American Academy of Achievement, colloquially known as the Academy of Achievement, is a non-profit educational organization that recognizes some of the highest achieving individuals in diverse fields and gives them the opportunity to meet o ...
* 2002
French Academy of Medicine French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ...
, *
European Academy of Sciences and Arts The European Academy of Sciences and Arts (EASA, la, Academia Scientiarum et Artium Europaea) is a transnational and interdisciplinary network, connecting about 2,000 recommended scientists and artists worldwide, including 37 Nobel Prize laure ...


Bibliography

*Baulieu EE, Kelly PA. ''Hormones — From Molecules to Disease.'' Springer (1990) *Baulieu EE. ''Neurosteroids: A New Regulatory Function in the Nervous System.'' Humana Press (1999) *Baulieu EE. ''Abortion Pill.'' Simon & Schuster (1991) *Baulieu EE. ''Etienne-Émile Baulieu.'' Génération Pilule (Paris: 1990).(Autobiography in French)


References


External links


An interview with Étienne-Émile Baulieu about his research (French)''Étienne-Émile Baulieu: fragments de vie et de recherche'' A portrait of Étienne-Émile Baulieu by BioTV (French)Lecture on Aging and Hormones
{{DEFAULTSORT:Baulieu, Etienne-Emile 1926 births Living people French endocrinologists French biochemists Collège de France faculty Grand Officiers of the Légion d'honneur Officers of the French Academy of Sciences Lycée Pasteur (Neuilly-sur-Seine) alumni Foreign associates of the National Academy of Sciences Members of the European Academy of Sciences and Arts Recipients of the Lasker-DeBakey Clinical Medical Research Award