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Edgar Allen (1892–1943)
Edgar Allen identified and outlined the role of female sex hormones and discovered estrogen in the early 1900s in the US. In 1923, Allen, through his research with mice, isolated the primary ovarian hormone, later renamed estrogen, from ovarian follicles and tested its effect through injections in the uterine tissues of mice. Allen’s work on estrogen, enabled researchers to further study hormones and the endocrine system.
Stanley Paul Leibo (1937–2014)
Stanley Paul Leibo studied the cryopreservation of embryos in the US in the twentieth century. Cryopreservation is a method of preserving biological material through freezing. Early in his career, Leibo collaborated with other scientists to study why cells were oftentimes injured during freezing. Later, Leibo and his team accomplished one of the first successful births using previously-frozen mammalian embryos.
Subject: People, Technologies
Kurt Benirschke (1924-)
Kurt Benirschke studied cells, placentas, and endangered species in Germany and the US during the twentieth century. Benirschke was professor at the University of California in San Diego, California, and a director of the research department at the San Diego Zoo in San Diego, California. He also helped form the research department of the San Diego Zoo and its sister organization, the Center for Reproduction of Endangered Species.
Elinor Catherine Hamlin (1924- )
Elinor Catherine Hamlin founded and helped fund centers in Ethiopia to treat women affected by fistulas from obstetric complications. Obstetric fistulas develop in women who experience prolonged labor, as the pressure placed on the pelvis by the fetus during labor causes a hole, or fistula, to form between the vagina and the bladder (vesicovaginal fistula) or between the vagina and the rectum (rectovaginal fistula). Both of those conditions result in urinary or fecal incontinence, which often impacts womenÍs social status within their communities.
Subject: People, Reproduction
Emma Goldman (1869–1940)
Emma Goldman was a traveling public speaker and writer known for her anarchist political views as well as her opinions on contraception and birth limiting in the late nineteenth century in the United States. Goldman identified as an anarchist, which she explained as being part of an ideology in which people use violence to provoke or demand social and political change. Goldman was involved in many anarchist social groups and published the anarchist magazine Mother Earth.
Stazione Zoologica Anton Dohrn, Naples, Italy
The Stazione Zoologica Anton Dohrn (Anton Dohrn Zoological Station) is a public research institute focusing on biology and biodiversity. Hereafter called the Station, it was founded in Naples, Italy, in 1872 by Anton Dohrn. The type of research conducted at the Station has varied since it was created, though initial research focused on embryology. At the turn of the twentieth century, researchers at the Station established the sea urchin (Echinoidea) as a model organism for embryological research.
Subject: Organizations, People, Places
National Association for Down Syndrome (1960–)
The National Association for Down Syndrome, or NADS, is an organization that was founded in 1960 by Kathryn McGee in Chicago, Illinois, to support people with Down syndrome and their families in improving their quality of life. Originally named the Mongoloid Developmental Council, NADS is one of the oldest organizations serving people with Down syndrome and their families in the United States. According to NADS, Down syndrome is a genetic condition that occurs in one in every seven hundred ninety-two people and that causes delays in physical and intellectual development.
Subject: Disorders, Organizations, People, Ethics
Min Chueh Chang (1908-1991)
As one of the researchers involved in the development of the oral contraceptive pill, Min Chueh Chang helped to revolutionize the birth control movement. Although best known for his involvement with "the pill," Chang also made a number of discoveries throughout his scientific career involving a range of topics within the field of reproductive biology. He published nearly 350 articles in scientific journals.
Subject: People, Reproduction
Karl Oskar Illmensee (1939–)
Karl Oskar Illmensee studied the cloning and reproduction of fruit flies, mice, and humans in the US and Europe during the twentieth and twenty-first centuries. Illmensee used nuclear transfer techniques (cloning) to create early mouse embryos from adult mouse cells, a technique biologists used in later decades to help explain how embryonic cells function during development. In the early 1980s, Illmensee faced accusations of fraud when others were unable to replicate the results of his experiments with cloned mouse embryos.
Harry Clay Sharp (1870-1940)
Harry Clay Sharp was a surgeon who performed one of the first recorded vasectomies with the purpose of sterilizing a patient. Sterilization is the practice that makes a person unable to reproduce, and vasectomy accomplishes that by severing the vasa deferentia, the sperm-carrying tubes in the male reproductive system. Historically, sterilization procedures have varied in techniques, goals, and risks, but Sharp’s method of vasectomy allowed restriction of a patient’s reproductive functions without significantly affecting other bodily functions.
Subject: Legal, Ethics, People, Organizations, Technologies
Aristotle (384-322 BCE)
Aristotle studied developing organisms, among other things, in ancient Greece, and his writings shaped Western philosophy and natural science for greater than two thousand years. He spent much of his life in Greece and studied with Plato at Plato's Academy in Athens, where he later established his own school called the Lyceum. Aristotle wrote greater than 150 treatises on subjects ranging from aesthetics, politics, ethics, and natural philosophy, which include physics and biology. Less than fifty of Aristotle's treatises persisted into the twenty-first century.
Hilde Mangold (1898-1924)
Hilde Mangold, previously Hilde Proescholdt, was a German embryologist and physiologist who became well known for research completed with Hans Spemann in the 1920s. As a graduate student, Mangold assisted Spemann and together they discovered and coined the term the "organizer." The organizer discovery was a crucial contribution to embryology that led to further understanding of the pattern of embryo differentiation of amphibians.
Otto Mangold (1891-1962)
Otto Mangold was an early twentieth century embryologist who specialized in the development of amphibian embryos. A major emphasis of his research was refining the concept of the organizer, now referred to as embryonic induction. He was born on 4 November 1891 in Auenstein, Germany, and came from what Viktor Hamburger, a colleague and personal acquaintance, described as "peasant stock." Mangold attended several universities including Tübingen, Freiburg, and Rostock.
Johannes Holtfreter (1901-1992)
Johannes Holtfreter made important discoveries about the properties of the organizer discovered by Hans Spemann. Although he spent much time away from the lab over many years, he was a productive researcher. His colleagues noted that the time he spent away helped revitalize his ideas. He is credited with the development of a balanced salt medium to allow embryos to develop; the discovery that dead organizer tissue retains inductive abilities; and the development of specification, competence, and distribution of fate maps in the developing frog embryo.
Katharine McCormick (1876-1967)
Katharine Dexter McCormick, who contributed the majority of funding for the development of the oral contraceptive pill, was born to Josephine and Wirt Dexter on 27 August 1875 in Dexter, Michigan. After growing up in Chicago, Illinois, she attended the Massachusetts Institute of Technology (MIT), where she graduated in 1904 with a BS in biology. That same year, she married Stanley McCormick, the son of Cyrus McCormick, inventor and manufacturer of the mechanized reaper.
Subject: People, Ethics, Reproduction
David Michael Rorvik (1944–)
David Michael Rorvik is a science journalist who publicized advancements in the field of reproductive medicine during the late twentieth century. Rorvik wrote magazine articles and books in which he discussed emerging methods and technologies that contributed to the progression of reproductive health, including sex determination, in vitro fertilization, and human cloning. During that time, those topics were controversial and researchers often questioned Rorvik’s work for accuracy.
Margaret (Peggy) Goldwater (1909–1985)
Margaret Goldwater advocated for birth control and reproductive rights in the United States during the twentieth century. Goldwater was a socialite and philanthropist and was married to Barry Goldwater, US Senator from Arizona. She spent much of her life working to further the women's reproductive rights movement, which sought to expand women's legal, social, and physical access to reproductive healthcare, including contraception and abortions.
Subject: People, Reproduction, Outreach
Barry Morris Goldwater (1909–1998)
Barry Morris Goldwater was a Republican Arizona Senator and US presidential candidate in the twentieth-century whose policies supported the women's reproductive rights movement. Goldwater, a businessman and Air Force reservist, transitioned into politics in the 1950s. He helped align popular support for a conservative Republican Party in the 1960s. Throughout his life, he worked to maintain personal liberty and to limit governmental intrusion into citizens' private lives. Goldwater, influenced by his wife Margaret (Peggy) Goldwater, supported women's rights to abortions.
Subject: People, Reproduction, Legal, Religion
Pearl Mao Tang (1922– )
A licensed obstetrician and gynecologist, Pearl Tang worked to improve the health of women and children in Maricopa County, Arizona, during the twentieth and twenty-first centuries. Her work with the Maricopa County Health Department ranged from immunizations to preventing cervical cancer. Tang obtained federal grants and community support to establish various child and maternal health clinics throughout Maricopa County as chief of the Maricopa County Bureau of Maternal and Child Health.
Henry Morgentaler (1923-2013)
Henry Morgentaler was a physician who performed abortions, acted as a reproductive rights activist, and advocated for legal access to abortions in Canada during the twentieth century. In 1969, he opened his first abortion clinic in Canada and participated in the legal/court case of R v. Morgentaler (1988), which led Canada to decriminalize abortion. Morgentaler helped establish legal access to abortions for women in Canada and advocated for the protection of women's reproductive choices under the law.
Edwin Carlyle (Carl) Wood (1929–2011)
Edwin Carlyle Wood, also known as Carl Wood, was a physician who helped develop in vitro fertilization, or IVF, treatments. From 1964 to 1992, Wood worked as a professor of obstetrics and gynecology at Monash University in Melbourne, Australia, where he was one of the first in the world to lead a team of physicians to establish IVF as a proven treatment for infertility. IVF refers to a medical procedure in which scientists inseminate an egg cell with a sperm cell outside of the body, such as in a glass dish in a clinical setting.
Subject: People, Technologies, Reproduction
People's Padre: An Autobiography (1954), by Emmett McLoughlin
Emmett McLoughlin wrote People's Padre: An Autobiography, based on his experiences as a Roman Catholic priest advocating for the health of people in Arizona. The Beacon Press in Boston, Massachusetts, published the autobiography in 1954. McLoughlin was a Franciscan Order Roman Catholic priest who advocated for public housing and healthcare for the poor and for minority groups in Phoenix, Arizona, during the mid twentieth century. The autobiography recounts McLoughlin's efforts in founding several community initiatives throughout Phoenix, including the St.
Subject: Outreach, People, Publications, Religion
Gunther von Hagens (1945- )
Gunther von Hagens invented a plastination technique and created Body Worlds, a traveling exhibit that has made anatomy part of the public domain. Von Hagens invented the plastination technique in 1977 while working at Heidelberg University in Heidelberg, Germany. Von Hagen's plastination technique preserves real bodies and tissues by the removal of the fluid and replacement with resin. Body Worlds features three-dimensional, plastinated human bodies.
Subject: People, Outreach, Reproduction
Hans Spemann (1869-1941)
Hans Spemann was an experimental embryologist best known for his transplantation studies and as the originator of the "organizer" concept. One of his earliest experiments involved constricting the blastomeres of a fertilized salamander egg with a noose of fine baby hair, resulting in a partially double embryo with two heads and one tail.
Conrad Hal Waddington (1905-1975)
Conrad Hal Waddington was an embryologist and theoretical biologist. His early experimental work investigated aspects of embryonic induction and the properties of the organizer first identified by Hans Spemann and Hilde Mangold, while his later studies focused on genetic assimilation. Waddington is probably best known for developing the concept of the epigenetic landscape, and he also held significant interest in many different areas ranging from the visual arts and poetry to philosophy.