title: [Effect of high glucose and high insulin on NE-induced cardiac hypertrophy of the cultured myocardial cells].
abstract: OBJECTIVE
  To study the effect of diabetes-like environment on the cardiac hypertrophy, cultured cardiomyocytes were used to study the effect of high insulin and high glucose on norepinephrine (NE)-induced cardiac hypertrophy.
  
  
  METHODS
  Using cultured myocardial cells as a model, the cellular hypertrophy was observed. The contracting frequency was counted by the inverted microscope, the protein content was assayed with Lowry's method, the cardiomyocytes' volumes were measured by computer photograph analysis system, the protein synthesis was assayed with [3H] leucine intake method.
  
  
  RESULTS
  The total cellular protein content, cellular volumes, cellular protein synthesis showed an increase in high insulin group and high glucose group compared with control group. High insulin and high glucose and NE group showed a further increase compared with high glucose and NE group.
  
  
  CONCLUSIONS
  The high insulin itself induces hypertrophy of the cultured myocardial cells slightly. Meanwhile, imitating diabetes-like environment with high insulin and high glucose and NE can further accelerate hypertrophy of the cultured myocardial cells.
authors.affiliation: Department of Pharmacology, Jinzhou Medical College, Jinzhou 121001, China.
authors.forename: Qing-Feng
authors.initials: QF
authors.lastname: Zhou
authors.forename: Hong-Xin
authors.initials: HX
authors.lastname: Wang
authors.forename: Yi-Wei
authors.initials: YW
authors.lastname: Wang
authors.forename: Li-Juan
authors.initials: LJ
authors.lastname: Fu
authors.forename: Dan
authors.initials: D
authors.lastname: Shan
authors.forename: He
authors.initials: H
authors.lastname: Liu
mesh_terms: D000818:Animals; D000831:Animals, Newborn; D006332:Cardiomegaly / Q000139:chemically induced / Q000378:metabolism*; D002478:Cells, Cultured; D005947:Glucose / Q000378:metabolism*; D007328:Insulin / Q000494:pharmacology*; D032383:Myocytes, Cardiac / Q000187:drug effects* / Q000378:metabolism; D009638:Norepinephrine / Q000009:adverse effects; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D007328:Insulin; D005947:Glucose; D009638:Norepinephrine