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Jin Won Jeong  (Jeong JW) 2 Articles
A Case of Pheochromocytoma That Presented as Inverted Takotsubo Cardiomyopathy.
Meyoung Cho, Ik Sang Shin, Ae Ryoung Jin, Jong Bin Park, Hye Jung Noh, Hun Soo Kim, Ha Young Kim, Byoung Hyun Park, Chung Gu Cho, Jin Won Jeong
J Korean Endocr Soc. 2009;24(1):47-53.   Published online March 1, 2009
DOI: https://doi.org/10.3803/jkes.2009.24.1.47
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AbstractAbstract PDF
A 52-year-old female was admitted to the hospital with abdominal pain. Her electrocardiogram revealed ST depressions in leads II, III, aVF and V2-5. The echocardiography showed transient cardiomyopathy with akinesia of the basal and mid portions of the left ventricle and hyperkinesia of the apex. There was no evidence of any vascular lesion on the emergency coronary angiography. She was diagnosed with pheochromocytoma by abdominal computed tomography and the post-operative pathologic examinations. These findings led us to a diagnosis of inverted Takotsubo cardiomyopathy related with pheochromocytoma. The recognition of such a rare cardiac manifestation should be considered in the diagnosis of pheochromocytoma, and especially in the circumstances of acute heart failure.

Citations

Citations to this article as recorded by  
  • A Case of Malignant Pheochromocytoma Presenting as Inverted Takotsubo-Like Cardiomyopathy
    Jung Eun Jang, Hyuk Hee Kwon, Min Jung Lee, Chang Hee Jung, Sung Jin Bae, Hong Kyu Kim, Woo Je Lee
    Endocrinology and Metabolism.2012; 27(1): 98.     CrossRef
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Effects of Diaxoxide, Cromakalim and Pinacidil on Acetylcholine and Norepinephrine Release in Rat Hippocampus.
Sei Hoon Yang, Do Kyung Kim, Chung Gu Cho, Jin Won Jeong, Bong Kyu Choi
J Korean Endocr Soc. 1994;10(2):115-124.   Published online November 6, 2019
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AbstractAbstract PDF
It is aim of the present study to gain more insight into the role K_ATP-channel in acetylcholine(Ach) and norepinephrine(NE) release in the central nervous system. Slices from the rat hippocampus were equilibrated with [^3H]-choline and [^3H]-norepinephrine and the release of the labelled products was evoked by electrical stimulation(3 Hz, 2 ms, 5 VCm^-1, rectangular pulses, 2 min), and the influence of K_ATP-channel openers and other related drugs on the evoked tritium-outflow was investigated.Cromakalim, in concentrations ranging from 10 to 300 uM, decreased the evoked [^3H]-Ach & [^3H]-NE release in a dose-dependent manner without changing the basal rate of release. Diazoxide(10-300uM) inhibited the evoked[^3H]-NE release but increased the evoked [^3H]-Ach release significantly, while, the effects of pinacidil(3-100uM) were vice versa. Glibenclamide(1-30uM), a selective K_ATP-channel blocker, did not affect the evoked or basal release of both tritium outflow. And the inhibitory effect of K^+-channel openers was inhibited by glibenclamide pretreatment. Pinacidil-induced increase in the evoked NE release was not affected by cocaine, but potentiated by hydrocortisone. And the diazoxide-induced increase in Ach release was not affected by hydrocortisone pretreatment.These results suggest that ATP-sensitive K^+ -channels are present in the both adrenergic and cholinergic nerve endings of rat hippocampus, but these channels seem to be pharmacologically different from those reported for smooth muscle cells and pancreatic beta-cells.
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