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Carl Ronald Kahn (born January 14, 1944) is an American physician and scientist, best known for his work with insulin receptors and insulin resistance in diabetes and obesity. He is the Chief Academic Officer at
Joslin Diabetes Center Joslin Diabetes Center is the world's largest diabetes research center, diabetes clinic, and provider of diabetes education. It is located in the Longwood Medical and Academic Area in Boston, Massachusetts, United States. Among the Harvard Medic ...
, the Mary K. Iacocca Professor of Medicine at
Harvard Medical School Harvard Medical School (HMS) is the graduate medical school of Harvard University and is located in the Longwood Medical and Academic Area, Longwood Medical Area of Boston, Massachusetts. Founded in 1782, HMS is one of the oldest medical schools ...
and a member of the
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 Nat ...
since 1999.


Early life and career

Kahn was born in
Louisville, Kentucky Louisville ( , , ) is the largest city in the Commonwealth of Kentucky and the 28th most-populous city in the United States. Louisville is the historical seat and, since 2003, the nominal seat of Jefferson County, on the Indiana borde ...
. He received his undergraduate and medical degree from the
University of Louisville The University of Louisville (UofL) is a public research university in Louisville, Kentucky. It is part of the Kentucky state university system. When founded in 1798, it was the first city-owned public university in the United States and one of ...
in 1964 and 1968. He became interested in pursuing diabetes research while serving in several positions at the
National Institutes of Health The National Institutes of Health, commonly referred to as NIH (with each letter pronounced individually), is the primary agency of the United States government The federal government of the United States (U.S. federal government or U ...
(NIH) from 1970 to 1981. He moved to
Boston Boston (), officially the City of Boston, is the capital city, state capital and List of municipalities in Massachusetts, most populous city of the Commonwealth (U.S. state), Commonwealth of Massachusetts, as well as the cultural and financ ...
in 1981 when he was appointed Associate Professor of Medicine at
Harvard Medical School Harvard Medical School (HMS) is the graduate medical school of Harvard University and is located in the Longwood Medical and Academic Area, Longwood Medical Area of Boston, Massachusetts. Founded in 1782, HMS is one of the oldest medical schools ...
and Research Director of the
Joslin Diabetes Center Joslin Diabetes Center is the world's largest diabetes research center, diabetes clinic, and provider of diabetes education. It is located in the Longwood Medical and Academic Area in Boston, Massachusetts, United States. Among the Harvard Medic ...
. By 1984, he was promoted to Professor of Medicine and named the Mary K. Iacocca Professor of Medicine at
Harvard Medical School Harvard Medical School (HMS) is the graduate medical school of Harvard University and is located in the Longwood Medical and Academic Area, Longwood Medical Area of Boston, Massachusetts. Founded in 1782, HMS is one of the oldest medical schools ...
in 1986.


Appointments

Kahn became the president and director of Joslin in 2000 and held this position until 2007. In 2012, he was appointed Joslin's first Chief Academic Officer. Outside of Joslin, Kahn also held various leadership roles. In 1998 he was appointed chair of the Congressionally-mandated Diabetes Research Working Group (DRWG). This group developed a strategic plan which served as the roadmap for growth of the diabetes research for the United States over the following 10 years. Dr. Kahn also served as chair of Class IV (
Biomedical Sciences Biomedical sciences are a set of sciences applying portions of natural science or formal science, or both, to develop knowledge, interventions, or technology that are of use in healthcare or public health. Such disciplines as medical micro ...
) of the
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 Nat ...
from 2007 to 2010.


Personal life

Kahn is married to Susan Becker Kahn, also formerly of Louisville. They have two children. Stacy Anne Kahn is a pediatric gastroenterologist at the
Boston Children's Hospital Boston Children's Hospital formerly known as Children's Hospital Boston until 2012 is a nationally ranked, freestanding acute care children's hospital located in Boston, Massachusetts, adjacent both to its teaching affiliate, Harvard Medical Scho ...
. Jeffrey Adam Kahn is managing partner of Continuum Search based in
Denver, Colorado Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the United ...
. His brother Arnold Kahn is emeritus professor of
developmental biology Developmental biology is the study of the process by which animals and plants grow and develop. Developmental biology also encompasses the biology of regeneration, asexual reproduction, metamorphosis, and the growth and differentiation of ste ...
of the
University of California San Francisco The University of California, San Francisco (UCSF) is a public land-grant research university in San Francisco, California. It is part of the University of California system and is dedicated entirely to health science and life science. It condu ...
.


Research contributions

Kahn is an investigator in insulin signal transduction and mechanisms of altered signaling in diabetes. The main discoveries to come from his lab include the
insulin receptor The insulin receptor (IR) is a transmembrane receptor that is activated by insulin, IGF-I, IGF-II and belongs to the large class of receptor tyrosine kinase. Metabolically, the insulin receptor plays a key role in the regulation of glucose homeo ...
kinase In biochemistry, a kinase () is an enzyme that catalysis, catalyzes the transfer of phosphate groups from High-energy phosphate, high-energy, phosphate-donating molecules to specific Substrate (biochemistry), substrates. This process is known as ...
, its two primary substrates and the molecular components of the
insulin Insulin (, from Latin ''insula'', 'island') is a peptide hormone produced by beta cells of the pancreatic islets encoded in humans by the ''INS'' gene. It is considered to be the main anabolic hormone of the body. It regulates the metabol ...
signaling network. Kahn's lab was also the first to define alterations in the signaling network in insulin resistant states, such as
type 2 diabetes Type 2 diabetes, formerly known as adult-onset diabetes, is a form of diabetes mellitus that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. Common symptoms include increased thirst, frequent urinati ...
. More recent discoveries from his lab encompass defining alterations in the signaling network in
type 2 diabetes Type 2 diabetes, formerly known as adult-onset diabetes, is a form of diabetes mellitus that is characterized by high blood sugar, insulin resistance, and relative lack of insulin. Common symptoms include increased thirst, frequent urinati ...
, including the important role of insulin action in unexpected tissues such as brain, both in physiologic regulation and potentially in development of Alzheimer's disease. His lab at Joslin has also made contributions to the understanding of obesity by showing that fat cells, called
adipocytes Adipocytes, also known as lipocytes and fat cells, are the cells that primarily compose adipose tissue, specialized in storing energy as fat. Adipocytes are derived from mesenchymal stem cells which give rise to adipocytes through adipogenesis. ...
, have different developmental origins and cellular functions that lead to risk of
metabolic disease A metabolic disorder is a disorder that negatively alters the body's processing and distribution of macronutrients, such as proteins, fats, and carbohydrates. Metabolic disorders can happen when abnormal chemical reactions in the body alter the ...
. Kahn's work with adult humans has demonstrated that they have active
brown fat Brown adipose tissue (BAT) or brown fat makes up the adipose organ together with white adipose tissue (or white fat). Brown adipose tissue is found in almost all mammals. Classification of brown fat refers to two distinct cell populations with si ...
that is central to redefining its role in metabolic regulation and protection from
obesity Obesity is a medical condition, sometimes considered a disease, in which excess body fat has accumulated to such an extent that it may negatively affect health. People are classified as obese when their body mass index (BMI)—a person's ...
.


Awards and recognition

* David Rumbough Award for Scientific Achievement,
Juvenile Diabetes Foundation JDRF is a nonprofit 501(c)(3) organization that funds type 1 diabetes (T1D) research, provides a broad array of community and activist services to the T1D population and actively advocates for regulation favorable to medical research and approval ...
(1977) * Eli Lilly Award for Research,
American Diabetes Association The American Diabetes Association (ADA) is a United States-based nonprofit that seeks to educate the public about diabetes and to help those affected by it through funding research to manage, cure and prevent diabetes (including type 1 diabetes, ...
(1981) * Cristobal Diaz Award for Research,
International Diabetes Federation The International Diabetes Federation (IDF) is an umbrella organization of over 230 national diabetes associations in more than 160 countries and territories. The Federation has been leading the global diabetes community since 1950. It is headqua ...
(1988) * Banting Medal for Distinguished Scientific Achievement, American Diabetes Association (1993) * Solomon Berson Distinguished Lecture,
American Physiological Society The American Physiological Society is a non-profit professional society for physiologists. It has nearly 10,000 members, most of whom hold doctoral degrees in medicine, physiology or other health professions. Its mission is to support research an ...
(1997) * Albert Renold Award, American Diabetes Association (1998) * Dorothy Hodgkin Award, British Diabetes Association (1999) * Fred Conrad Koch Award for Distinguished Contributions to Endocrinology,
Endocrine Society The Endocrine Society is a professional, international medical organization in the field of endocrinology and metabolism, founded in 1916 as The Association for the Study of Internal Secretions. The official name of the organization was changed ...
(2000) * Hamdan Award for Medical Research Excellence, awarded by Sheikh Hamdan bin Rashid Al Maktoum Award for Medical Sciences,
Dubai Dubai (, ; ar, دبي, translit=Dubayy, , ) is the most populous city in the United Arab Emirates (UAE) and the capital of the Emirate of Dubai, the most populated of the 7 emirates of the United Arab Emirates.The Government and Politics ...
,
United Arab Emirates The United Arab Emirates (UAE; ar, اَلْإِمَارَات الْعَرَبِيَة الْمُتَحِدَة ), or simply the Emirates ( ar, الِْإمَارَات ), is a country in Western Asia ( The Middle East). It is located at ...
(2000) * Lawson Wilkins Award Lecture, Pediatric Endocrine Society (2001) * Rolf Luft Award Lecture,
Karolinska Institute The Karolinska Institute (KI; sv, Karolinska Institutet; sometimes known as the (Royal) Caroline Institute in English) is a research-led medical university in Solna within the Stockholm urban area of Sweden. The Karolinska Institute is consis ...
, Stockholm, Sweden (2001) * Steven C. Beering Award for Advancement of Biomedical Science, Indiana University (2002) * J. Allyn Taylor International Prize in Medicine for Diabetes, Toronto, Canada (2002) * Manpei Suzuki International Prize for Top Diabetes Researcher Worldwide (Inaugural Recipient), Tokyo, Japan (2009) * Hans Falk Memorial Lecture, National Institute of Environmental Health Science (2009) * Presidential Lecture, Memorial Sloan Kettering Cancer Institute, New York (2010) *
Alpha Omega Alpha Alpha Omega Alpha Honor Medical Society () is an honor society in the field of medicine. Alpha Omega Alpha currently has active Chapters in 132 LCME- accredited medical schools in the United States and Lebanon. It annually elects over 4,000 new ...
Visiting Professor, Columbia University Medical School, New York, NY (2010) * Frontiers in Science Award, American Association of Clinical Endocrinologists (2010) * Cockrell Foundation Award in Basic and Clinical Research, Houston, TX (2010) * Distinguished Leader in Insulin Resistance, World Congress of Insulin Resistance in Diabetes and Cardiovascular Disease, Los Angeles, CA (2010) * David Murdock Dole Honorary Lecture, Mayo Clinic-Karolinska, Nobel Forum, Stockholm, Sweden (2011) * Wallace H. Coulter Award, American Association of Clinical Chemistry (2013) * Helmholtz Diabetes Research Lifetime Achievement Award, Munich, Germany (2013) * Honorary Adjunct Member,
Max Planck Institute Max or MAX may refer to: Animals * Max (dog) (1983–2013), at one time purported to be the world's oldest living dog * Max (English Springer Spaniel), the first pet dog to win the PDSA Order of Merit (animal equivalent of OBE) * Max (gorilla) ...
, Cologne, Germany (2014) * Ipsen Foundation Prize in Endocrine Regulation (2015) * Harold Hamm Prize in Diabetes (2015) *
Wolf Prize The Wolf Prize is an international award granted in Israel, that has been presented most years since 1978 to living scientists and artists for ''"achievements in the interest of mankind and friendly relations among people ... irrespective of natio ...
in Medicine, Jerusalem, Israel (2016)


References

http://retractionwatch.com/2017/04/25/harvard-diabetes-researcher-retracts-third-paper/ {{DEFAULTSORT:Kahn, C. Ronald 1944 births Living people Harvard Medical School faculty Physicians from Louisville, Kentucky University of Louisville School of Medicine alumni Fellows of the American Academy of Microbiology Members of the National Academy of Medicine