The magnitude of nephron number reduction mediates intrauterine growth-restriction-induced long term chronic renal disease in the rat. A comparative study in two experimental models
BACKGROUND: Intrauterine growth restriction (IUGR) is a risk factor for hypertension (HT) and chronic renal disease (CRD). A reduction in the nephron number is proposed to be the underlying mechanism; however, the mechanism is debated. The aim of this study was to demonstrate that IUGR-induced HT and CRD are linked to the magnitude of nephron number reduction, independently on its cause.
METHODS: Systolic blood pressure (SBP), glomerular filtration rate (GFR), proteinuria, nephron number, and glomerular sclerosis were compared between IUGR offspring prenatally exposed to a maternal low-protein diet (9% casein; LPD offspring) or maternal administration of betamethasone (from E17 to E19; BET offspring) and offspring with a normal birth weight (NBW offspring).
RESULTS: Both prenatal interventions led to IUGR and a similar reduction in birth weight. In comparison to NBW offspring, BET offspring had a severe nephron deficit (-50% in males and -40% in females, p < 0.01), an impaired GFR (-33%, p < 0.05), and HT (SBP+ 17 mmHg, p < 0.05). Glomerular sclerosis was more than twofold higher in BET offspring than in NBW offspring (p < 0.05). Long-term SBP, GFR, and glomerular sclerosis were unchanged in LPD offspring while the nephron number was moderately reduced only in males (-28% vs. NBW offspring, p < 0.05).
CONCLUSION: In this study, the magnitude of nephron number reduction influences long term renal disease in IUGR offspring: a moderate nephron number is an insufficient factor. Extremely long-term follow-up of adults prenatally exposed to glucocorticoids are required.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2016 |
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| Erschienen: |
2016 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:14 |
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| Enthalten in: |
Journal of translational medicine - 14(2016), 1 vom: 30. Nov., Seite 331 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Boubred, Farid [VerfasserIn] |
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| Anmerkungen: |
Date Completed 16.10.2017 Date Revised 13.11.2018 published: Electronic Citation Status MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM266658830 |
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| 100 | 1 | |a Boubred, Farid |e verfasserin |4 aut | |
| 245 | 1 | 4 | |a The magnitude of nephron number reduction mediates intrauterine growth-restriction-induced long term chronic renal disease in the rat. A comparative study in two experimental models |
| 264 | 1 | |c 2016 | |
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| 500 | |a Date Completed 16.10.2017 | ||
| 500 | |a Date Revised 13.11.2018 | ||
| 500 | |a published: Electronic | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a BACKGROUND: Intrauterine growth restriction (IUGR) is a risk factor for hypertension (HT) and chronic renal disease (CRD). A reduction in the nephron number is proposed to be the underlying mechanism; however, the mechanism is debated. The aim of this study was to demonstrate that IUGR-induced HT and CRD are linked to the magnitude of nephron number reduction, independently on its cause | ||
| 520 | |a METHODS: Systolic blood pressure (SBP), glomerular filtration rate (GFR), proteinuria, nephron number, and glomerular sclerosis were compared between IUGR offspring prenatally exposed to a maternal low-protein diet (9% casein; LPD offspring) or maternal administration of betamethasone (from E17 to E19; BET offspring) and offspring with a normal birth weight (NBW offspring) | ||
| 520 | |a RESULTS: Both prenatal interventions led to IUGR and a similar reduction in birth weight. In comparison to NBW offspring, BET offspring had a severe nephron deficit (-50% in males and -40% in females, p < 0.01), an impaired GFR (-33%, p < 0.05), and HT (SBP+ 17 mmHg, p < 0.05). Glomerular sclerosis was more than twofold higher in BET offspring than in NBW offspring (p < 0.05). Long-term SBP, GFR, and glomerular sclerosis were unchanged in LPD offspring while the nephron number was moderately reduced only in males (-28% vs. NBW offspring, p < 0.05) | ||
| 520 | |a CONCLUSION: In this study, the magnitude of nephron number reduction influences long term renal disease in IUGR offspring: a moderate nephron number is an insufficient factor. Extremely long-term follow-up of adults prenatally exposed to glucocorticoids are required | ||
| 650 | 4 | |a Comparative Study | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Chronic kidney disease | |
| 650 | 4 | |a Glomerular sclerosis | |
| 650 | 4 | |a Hypertension | |
| 650 | 4 | |a IUGR | |
| 650 | 4 | |a Low birth weight | |
| 650 | 4 | |a Nephron number | |
| 650 | 4 | |a Prenatal glucocorticoids | |
| 650 | 4 | |a Preterm infant | |
| 650 | 7 | |a Betamethasone |2 NLM | |
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| 700 | 1 | |a Daniel, Laurent |e verfasserin |4 aut | |
| 700 | 1 | |a Buffat, Christophe |e verfasserin |4 aut | |
| 700 | 1 | |a Tsimaratos, Michel |e verfasserin |4 aut | |
| 700 | 1 | |a Oliver, Charles |e verfasserin |4 aut | |
| 700 | 1 | |a Lelièvre-Pégorier, Martine |e verfasserin |4 aut | |
| 700 | 1 | |a Simeoni, Umberto |e verfasserin |4 aut | |
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