Effects of erythropoietin on cardiac morphometry in exercised male and female adolescent rats.
EPO administration did not alter left ventricular parameters, but significant thinning of the right ventricular wall was observed in female rats, indicating potential gender-specific cardiac responses.
Where it sits
this study against the rest of the erythropoietin (epo) corpusSummary and findings
This study measured the impact of erythropoietin (EPO) combined with swimming exercise on cardiac morphometry in adolescent male and female rats over 4 weeks. A total of 48 rats were divided into four groups, with EPO administered at 50.00 IU kg<sup>-1</sup> intraperitoneally. Notable alterations in left ventricular parameters were not observed, but significant thinning of the right ventricular wall and interventricular septum was noted in female rats receiving EPO.
Abstract
Erythropoietin (EPO) is a glycoprotein hormone predominantly produced in the kidneys, primarily stimulating erythroid cell proliferation in the bone marrow. The present study investigated the impact of EPO combined with swimming exercise on cardiac morphometry in adolescent male and female rats. The 4-week study involved 48 rats (24 males and 24 females), which were divided into four main groups of six males and six females each. The control group was administered intraperitoneal saline four times a week. The swimming exercise group also received intraperitoneal saline, followed by 30 min of swimming exercise, four times a week. The drug control group was given 50.00 IU kg<sup>-1</sup> epoetin alfa intraperitoneally, four times a week. Lastly, the Swimming + Drug group received 50.00 IU kg<sup>-1</sup> epoetin alfa intraperitoneally, four times a week, followed by 30 min of swimming exercise. The post-study measurements demonstrated that EPO administration did not result in notable alterations in crucial parameters, including the left ventricular mass index, left ventricular mass, and left ventricular posterior wall in the context of left ventricular hypertrophy in both genders. However, in female rats, EPO-only group and the combined EPO and exercise group showed significant thinning of the right ventricular wall and interventricular septum indicating potential cardiac dilatation. The results highlight the necessity of considering gender-specific responses when evaluating EPO's cardiovascular effects, particularly concerning the right ventricle, and suggest further investigation into the long-term consequences of these observed changes.
Background
Not reported in abstract.
Methods
Not reported in abstract.
Results
Not reported in abstract.
Interpretation
Not reported in abstract.
Limitations
Not reported in abstract.