Sex and strain differences in renal hemodynamics in mice
Abstract The present study was to examine sex and strain differences in glomerular filtration rate (GFR) and renal blood flow (RBF) in C57BL6, 129/Sv, and C57BLKS/J mice, three commonly used mouse strains in renal research. GFR was measured by transdermal measurement of FITC‐sinitrin clearance in co...
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| Format: | Article |
| Language: | English |
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Wiley
2023-03-01
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| Series: | Physiological Reports |
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| Online Access: | https://doi.org/10.14814/phy2.15644 |
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| author | Yu Tao Cassandra Young‐Stubbs Parisa Yazdizadeh Shotorbani Dong‐Ming Su Keisa W. Mathis Rong Ma |
| author_facet | Yu Tao Cassandra Young‐Stubbs Parisa Yazdizadeh Shotorbani Dong‐Ming Su Keisa W. Mathis Rong Ma |
| author_sort | Yu Tao |
| collection | DOAJ |
| description | Abstract The present study was to examine sex and strain differences in glomerular filtration rate (GFR) and renal blood flow (RBF) in C57BL6, 129/Sv, and C57BLKS/J mice, three commonly used mouse strains in renal research. GFR was measured by transdermal measurement of FITC‐sinitrin clearance in conscious mice. RBF was measured by a flow probe placed in the renal artery under an anesthetic state. In C57BL6 mice, there were no sex differences in both GFR and RBF. In 129/Sv mice, females had significantly greater GFR than males at age of 24 weeks, but not at 8 weeks. However, males had higher RBF and lower renal vascular resistance (RVR). Similar to 129/Sv, female C57BLKS/J had significantly greater GFR at both 8 and 24 weeks, lower RBF, and higher RVR than males. Across strains, male 129/Sv had lower GFR and higher RBF than male C57BL6, but no significant difference in GFR and greater RBF than male C57BLKS/J. No significant difference in GFR or RBF was observed between C57BL6 and C57BLKS/J mice. Deletion of eNOS in C57BLKS/J mice reduced GFR in both sexes, but decreased RBF in males. Furthermore, there were no sex differences in the severity of renal injury in eNOS−/− dbdb mice. Taken together, our study suggests that sex differences in renal hemodynamics in mice are strain and age dependent. eNOS was not involved in the sex differences in GFR, but in RBF. Furthermore, the sexual dimorphism did not impact the severity of renal injury in diabetic nephropathy. |
| first_indexed | 2024-03-08T19:17:29Z |
| format | Article |
| id | doaj.art-6654930b0db6445c8eb601ce738a0793 |
| institution | Directory Open Access Journal |
| issn | 2051-817X |
| language | English |
| last_indexed | 2024-03-08T19:17:29Z |
| publishDate | 2023-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Physiological Reports |
| spelling | doaj.art-6654930b0db6445c8eb601ce738a07932023-12-27T04:12:43ZengWileyPhysiological Reports2051-817X2023-03-01116n/an/a10.14814/phy2.15644Sex and strain differences in renal hemodynamics in miceYu Tao0Cassandra Young‐Stubbs1Parisa Yazdizadeh Shotorbani2Dong‐Ming Su3Keisa W. Mathis4Rong Ma5Department of Physiology and Anatomy University of North Texas Health Science Center Fort Worth Texas USADepartment of Physiology and Anatomy University of North Texas Health Science Center Fort Worth Texas USADepartment of Physiology and Anatomy University of North Texas Health Science Center Fort Worth Texas USADepartment of Microbiology, Immunology and Genetics University of North Texas Health Science Center Fort Worth Texas USADepartment of Physiology and Anatomy University of North Texas Health Science Center Fort Worth Texas USADepartment of Physiology and Anatomy University of North Texas Health Science Center Fort Worth Texas USAAbstract The present study was to examine sex and strain differences in glomerular filtration rate (GFR) and renal blood flow (RBF) in C57BL6, 129/Sv, and C57BLKS/J mice, three commonly used mouse strains in renal research. GFR was measured by transdermal measurement of FITC‐sinitrin clearance in conscious mice. RBF was measured by a flow probe placed in the renal artery under an anesthetic state. In C57BL6 mice, there were no sex differences in both GFR and RBF. In 129/Sv mice, females had significantly greater GFR than males at age of 24 weeks, but not at 8 weeks. However, males had higher RBF and lower renal vascular resistance (RVR). Similar to 129/Sv, female C57BLKS/J had significantly greater GFR at both 8 and 24 weeks, lower RBF, and higher RVR than males. Across strains, male 129/Sv had lower GFR and higher RBF than male C57BL6, but no significant difference in GFR and greater RBF than male C57BLKS/J. No significant difference in GFR or RBF was observed between C57BL6 and C57BLKS/J mice. Deletion of eNOS in C57BLKS/J mice reduced GFR in both sexes, but decreased RBF in males. Furthermore, there were no sex differences in the severity of renal injury in eNOS−/− dbdb mice. Taken together, our study suggests that sex differences in renal hemodynamics in mice are strain and age dependent. eNOS was not involved in the sex differences in GFR, but in RBF. Furthermore, the sexual dimorphism did not impact the severity of renal injury in diabetic nephropathy.https://doi.org/10.14814/phy2.15644glomerular filtration raterenal blood flowrenal hemodynamicssexstrain |
| spellingShingle | Yu Tao Cassandra Young‐Stubbs Parisa Yazdizadeh Shotorbani Dong‐Ming Su Keisa W. Mathis Rong Ma Sex and strain differences in renal hemodynamics in mice Physiological Reports glomerular filtration rate renal blood flow renal hemodynamics sex strain |
| title | Sex and strain differences in renal hemodynamics in mice |
| title_full | Sex and strain differences in renal hemodynamics in mice |
| title_fullStr | Sex and strain differences in renal hemodynamics in mice |
| title_full_unstemmed | Sex and strain differences in renal hemodynamics in mice |
| title_short | Sex and strain differences in renal hemodynamics in mice |
| title_sort | sex and strain differences in renal hemodynamics in mice |
| topic | glomerular filtration rate renal blood flow renal hemodynamics sex strain |
| url | https://doi.org/10.14814/phy2.15644 |
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