Yuzuru SAKAMOTO

Yuzuru SAKAMOTO

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ERYTHROPOIEISIS AND ERYTHROPOIETIN 1989

The red blood cells that carry oxygen throughout the body have a lifespan of 120 days. The living body continuously produces blood to ensure a plentiful supply of red blood cells. This film accurately records the conversion of stem cells into red blood cells. Conditions such as encounters with various other cells and contact with signals sent by other cells are important for the growth of blood cells, and the erythropoietin is one of these important signals. This signal stimulates the stromal cells to produce the necessary number of red blood cells which are continuously sent into the bloodstream. Scientific supervisor Fumimaro TAKAKU, M.D. Ph.D. (University of Tokyo)
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THE BONE 1982

The entire human body is made of cells, and health is maintained through the continuous process of old cells making way for new cells. Bones are no exception. This film looks into how bones are made up of cells, how they are broken up and how they are reformed. What do the cells that are continuously engaged in bone formation and bone resorption do, and how is balance maintained within the body? Color 17 min. (1982) Sponsored by Teijin Pharmaceuticals Co., Ltd. And Fujisawa Pharmaceutical Co., Ltd. (Astellas Pharma Inc.) Produced by Yone Production Inc.
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THE BONE II 1986

A medical film that explores the mechanism of bones, which support the body and act as a calcium storehouse to maintain balance within the body.