nature.ca
The GEEE! in GENOME logo
HomeFrançaisSearchGlossaryFor EducatorsFor the Press
We Are All Alike The Basics Using Genomics The Researchers Try it!
Icon: The Researchers

 

The Researchers

1) Photo: Irene Ayako Uchida
Irene Ayako Uchida
Chromosome Investigator

Tribute to Michael Smith

 

Historic Highlights

 

Meet Canadian Experts

 

Genomics at the Museum

 

Youth Science Fair

 

Careers in Genomics

 

Date and Place of  Birth:

Irene Ayako Uchida was born in Vancouver, BC on April 8, 1917.

Studies & Mission:

As a young girl, she enjoyed music and played the organ, piano and violin. The untimely death of her older sister Sachiko, from tuberculosis in 1933, inspired Uchida to spend the rest of her life helping others, and it was then she decided she would take up social work. "Education was a priority in the Uchida household", and in 1946, she earned a Bachelor of Arts degree in English from the University of Toronto, with the intention of returning to pursue a Master's degree in social work. However, after taking one introductory course in genetics, one of her professors was so favorably impressed, she successfully persuaded Uchida to enter the field of genetics.

 

"Eager to rise to the challenges presented to her in life", Uchida received her Ph.D. in Human Genetics in 1951 and shortly thereafter began her career as a research associate at the Hospital for Sick Children in Toronto. Her work in genetics primarily focused on the study of twins and children with Down syndrome, a birth defect in which a person is born with three copies of chromosome 21, and the most common severe birth defect at the time. In 1959, Uchida moved to Winnipeg, Manitoba and shifted her attention to human chromosomes, becoming "one of the first Canadian scientists to work in the field of Cytogenetics", the study of chromosomes in cells.

Achievements:

In 1960, she was appointed Director of the Department of Medical Genetics at the Children's Hospital in Winnipeg, and began teaching at the University of Manitoba. She performed several research studies on human chromosomes to determine if there was a link between pregnant women who received large doses of radiation from X-rays, and the incidence of Down syndrome in their babies. After extensive study, Uchida obtained evidence to suggest that indeed there was a connection between exposure to radiation and the occurrence of Down syndrome.

 

As a result of her discovery, she received national and international acclaim for her research on the effects of radiation on human chromosomes and in the 1960's, Uchida's pioneering work in diagnosing and studying the causes of Down syndrome resulted in a significant contribution to the medical sciences, and opened the way to further research into the possible causes of birth defects and other chromosome abnormalities.

In 1970, Uchida founded and directed the Cytogenetics Laboratory at McMaster University in Hamilton, Ontario, where she also initiated a genetics-counseling program. From 1991-1995, she was Director of Cytogenetics at the Oshawa General Hospital, where she helped diagnose genetic diseases and chromosome abnormalities in unborn fetuses. In 1993, Uchida was made an Officer in the Order of Canada. As a Professor Emeritus of the Department of Pediatrics and Pathology at McMaster University, Uchida, although retired, continues to maintain an interest in research into the causes of birth defects, and work with families of Down syndrome children.

Favourite Food:
Japanese.

Favourite Music:
Classical.

Inspiration as a teenager:
My aunt, who was the first Japanese Canadian to study at UBC.

Favourite Subject in High School:
English.

Hobbies when younger:
Watching the Japanese Canadian baseball team, the Asahi, play.

Credo:
"Science is a rewarding and challenging career. Young people going into science must keep an open mind to all ideas in an effort to find every possible way to help people."
"Seeing the invisible: the story of Dr. Irene Uchida" by Terry Watada

 

< Previous

Next >

 
 
 

Contact Us   Site Map    Resources   Credits    Exhibition on Tour    Public Forum Series

Last Update: 2003-08-22  © nature.ca    Important Notices
A Canadian Museum of Nature Web site, developed in cooperation with its partners.

Image credits: 1) Irene Ayako Uchida.