All animal experimental procedures were carried out in strict accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals and were approved by the IEC for Clinical Research and Animal Trials of the First Affiliated Hospital of Sun Yat-sen University (approval number: [2021]048). C57BL/6 J mice (8 weeks, male) were provided from animal research center of the first affiliated hospital of Sun Yat-sen University (Guangzhou, China) and maintained at 22–24°C, 50% relative humidity, with a 12 h light/dark period. C57BL/6 J mice were fed with a standard chow diet and randomly assigned to six groups (
n = 5 for each group). The mini osmotic pump (MODEL 2004, ALZET, United States) was subcutaneously implanted into mice to deliver either saline or Ang II (0.8 mg/kg/day) for 4 weeks. The 1% choline chloride (Sigma, United States) was administered
via drinking water for 4 weeks.
BBR chloride (Sigma, United States) was given at a dosage of 150 mg/kg/day for 4 weeks by intragastric administration.
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