Nefrologia · 2024
Soluble αKlotho concentration in the inferior vena cava of patients with primary aldosteronism.
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Yamada Hodaka, Kuro-O Makoto, Funazaki Shunsuke, Hamamoto Kohei, Hara Kazuo
Аннотация
INTRODUCTION: Klotho, a key aging regulator, is predominantly expressed in the kidney. Various methods now enable the measurement of soluble αKlotho blood levels in humans. Limited studies have explored the renal origin of circulating αKlotho in humans.
METHODS: Soluble αKlotho in the inferior vena cava blood was measured using an enzyme-linked immunosorbent assay kit using blood samples from patients undergoing adrenal venous catheterization for close examination of primary aldosteronism.
RESULTS: The concentration at the suprarenal inferior vena cava (476±68.2) was significantly higher than that at the infrarenal inferior vena cava (434±74.8) (p=0.018), with a rate of change of 8.12 (2.3)%.
CONCLUSIONS: We demonstrate a step-up in αKlotho concentration from the infrarenal to suprarenal vena cava in humans, supporting the kidney's origin of soluble αKlotho in the bloodstream.
METHODS: Soluble αKlotho in the inferior vena cava blood was measured using an enzyme-linked immunosorbent assay kit using blood samples from patients undergoing adrenal venous catheterization for close examination of primary aldosteronism.
RESULTS: The concentration at the suprarenal inferior vena cava (476±68.2) was significantly higher than that at the infrarenal inferior vena cava (434±74.8) (p=0.018), with a rate of change of 8.12 (2.3)%.
CONCLUSIONS: We demonstrate a step-up in αKlotho concentration from the infrarenal to suprarenal vena cava in humans, supporting the kidney's origin of soluble αKlotho in the bloodstream.