TGF-beta 1 has been examined in the heart during myocardial infarction caused by ligation of the left coronary artery. Infarcted and uninfarcted myocardium have been compared by immunohistochemical staining of TGF-beta 1 and by Northern blot analysis of mRNA. Normal ventricular myocytes are strongly stained by an antibody to TGF-beta 1l. Progressive loss of staining of these myocytes begins within 1hr after coronary ligation. However, by 24-48 hr after ligation, intense staining of myocytes at the margin of infarcted areas is seen. Northern blots of infarcted myocardium 48 hr after ligation show a 3- to 4-fold increase in the principal 2.4 kb TGF-beta 1 mRNA; there is also a marked increase in a minor 1.9 kb transcript. In the same tissue samples, there is a 2-fold decrease in the mRNA for the glycolytic enzyme, glyceraldehyde-3-phosphatedehydrogenase. The results indicate a significant role for TGF-beta 1 in the response of the heart to injury.
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Sungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South KoreaSungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South Korea
Chun, Ho-Kyung
Jung, Kyung Uk
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Sungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South KoreaSungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South Korea
Jung, Kyung Uk
Choi, Yoon-La
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Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Pathol, Seoul 135710, South Korea
Sungkyunkwan Univ, Samsung Adv Inst Hlth Sci & Technol, Dept Hlth Sci & Technol, Seoul 135710, South KoreaSungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South Korea
Choi, Yoon-La
Hong, Hye Kyung
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Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Surg, Seoul 135710, South KoreaSungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South Korea
Hong, Hye Kyung
Kim, Seok-Hyung
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Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Pathol, Seoul 135710, South KoreaSungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South Korea
Kim, Seok-Hyung
Yun, Seong Hyeon
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Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Surg, Seoul 135710, South KoreaSungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South Korea
Yun, Seong Hyeon
Kim, Hee Cheol
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Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Surg, Seoul 135710, South KoreaSungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South Korea
Kim, Hee Cheol
Lee, Woo Yong
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Sungkyunkwan Univ, Sch Med, Samsung Med Ctr, Dept Surg, Seoul 135710, South Korea
Sungkyunkwan Univ, Samsung Adv Inst Hlth Sci & Technol, Dept Hlth Sci & Technol, Seoul 135710, South KoreaSungkyunkwan Univ, Sch Med, Kangbuk Samsung Hosp, Dept Surg, Seoul 135710, South Korea
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Shanxi Med Univ, Dept Anesthesiol, Taiyuan 030001, Shanxi, Peoples R China
Shanxi Med Univ, Hosp 2, Dept Anesthesiol, Taiyuan 030001, Shanxi, Peoples R ChinaShanxi Med Univ, Dept Anesthesiol, Taiyuan 030001, Shanxi, Peoples R China
Zhang, Lin-Zhong
Guo, Zheng
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Shanxi Med Univ, Dept Anesthesiol, Taiyuan 030001, Shanxi, Peoples R China
Shanxi Med Univ, Hosp 2, Dept Anesthesiol, Taiyuan 030001, Shanxi, Peoples R China
Shanxi Med Univ, Natl Educ Commiss, Key Lab Cellular Physiol, Taiyuan, Peoples R ChinaShanxi Med Univ, Dept Anesthesiol, Taiyuan 030001, Shanxi, Peoples R China