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Updated: Nov 18, 2025

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DBA/1 mice display equivalent cardiac function to C57BL/6J mice.

Zhen Wang1, Zhengwei Zhou1, Paipai Guo1

  • 1Institute of Clinical Pharmacology, Anhui Medical University, Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Anhui Collaborative Innovation Center of Anti-inflammatory and Immune Medicine, Hefei, China.

Experimental Physiology
|February 6, 2021
PubMed
Summary

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Normal DBA/1 mice exhibit cardiac function comparable to C57BL/6J mice. This finding supports using DBA/1 mice for studying autoimmune disease-induced cardiac dysfunction.

Area of Science:

  • Cardiovascular research
  • Immunology
  • Animal models

Background:

  • Cardiovascular diseases are a growing concern, with autoimmune conditions contributing significantly.
  • C57BL/6J mice are commonly used but have low incidence of immune diseases like rheumatoid arthritis.
  • DBA/1 mice are more susceptible to certain autoimmune diseases, making them a relevant model.

Purpose of the Study:

  • To compare cardiac function and structure between normal adult DBA/1 and C57BL/6J mice.
  • To determine if DBA/1 mice are a suitable model for studying autoimmune-related cardiac dysfunction.

Main Methods:

  • Monthly echocardiography to monitor cardiac function over six months.
  • Isoproterenol challenge to assess cardiac systolic function.
  • Western blotting for excitation-contraction coupling proteins and histological analysis of heart tissue.
Keywords:
C57BL/6JDBA/1cardiac functiondisease modelrheumatoid arthritis

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Main Results:

  • No significant differences in systolic or diastolic cardiac function between DBA/1 and C57BL/6J mice.
  • Identical heart appearance and structure in both strains.
  • DBA/1 mice demonstrated a comparable cardiac beta-adrenergic response to C57BL/6J mice.

Conclusions:

  • Normal adult DBA/1 mice possess cardiac function and structure equivalent to C57BL/6J mice.
  • DBA/1 mice are a suitable model for investigating cardiac dysfunction in autoimmune diseases.
  • This strain facilitates research into potential interventions for autoimmune-related cardiovascular damage.