Proteinuria-associated renal magnesium wasting leads to hypomagnesemia: a common electrolyte abnormality in chronic kidney disease

Abstract Background Hypomagnesemia (Hypo-Mg) predicts mortality and chronic kidney disease (CKD) progression. However, in CKD, its prevalence, kidney-intrinsic risk factors, and the effectiveness of oral magnesium (Mg) therapy on serum Mg levels is uncertain. Methods In a cross-sectional study enrol...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Nephrology, dialysis, transplantation dialysis, transplantation, 2019-07, Vol.34 (7), p.1154-1162
Hauptverfasser: Oka, Tatsufumi, Hamano, Takayuki, Sakaguchi, Yusuke, Yamaguchi, Satoshi, Kubota, Keiichi, Senda, Masamitsu, Yonemoto, Sayoko, Shimada, Karin, Matsumoto, Ayumi, Hashimoto, Nobuhiro, Mori, Daisuke, Monden, Chikako, Takahashi, Atsushi, Obi, Yoshitsugu, Yamamoto, Ryohei, Takabatake, Yoshitsugu, Kaimori, Jun-Ya, Moriyama, Toshiki, Horio, Masaru, Matsui, Isao, Isaka, Yoshitaka
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 1162
container_issue 7
container_start_page 1154
container_title Nephrology, dialysis, transplantation
container_volume 34
creator Oka, Tatsufumi
Hamano, Takayuki
Sakaguchi, Yusuke
Yamaguchi, Satoshi
Kubota, Keiichi
Senda, Masamitsu
Yonemoto, Sayoko
Shimada, Karin
Matsumoto, Ayumi
Hashimoto, Nobuhiro
Mori, Daisuke
Monden, Chikako
Takahashi, Atsushi
Obi, Yoshitsugu
Yamamoto, Ryohei
Takabatake, Yoshitsugu
Kaimori, Jun-Ya
Moriyama, Toshiki
Horio, Masaru
Matsui, Isao
Isaka, Yoshitaka
description Abstract Background Hypomagnesemia (Hypo-Mg) predicts mortality and chronic kidney disease (CKD) progression. However, in CKD, its prevalence, kidney-intrinsic risk factors, and the effectiveness of oral magnesium (Mg) therapy on serum Mg levels is uncertain. Methods In a cross-sectional study enrolling pre-dialysis outpatients with CKD, the prevalence of electrolyte abnormalities (Mg, sodium, potassium, calcium and phosphorus) was compared. In an open-label randomized controlled trial (RCT), we randomly assigned CKD patients to either the magnesium oxide (MgO) or control arm. The outcome was serum Mg levels at 1 year. Results In 5126 patients, Hypo-Mg was the most common electrolyte abnormality (14.7%) with similar prevalence across stages of CKD. Positive proteinuria was a risk factor of Hypo-Mg (odds ratio 2.2; 95% confidence interval 1.2–4.0). However, stratifying the analyses by diabetes mellitus (DM), it was not significant in DM (Pinteraction = 0.04). We enrolled 114 patients in the RCT. Baseline analyses showed that higher proteinuria was associated with higher fractional excretion of Mg. This relationship between proteinuria and renal Mg wasting was mediated by urinary tubular markers in mediation analyses. In the MgO arm, higher proteinuria or tubular markers predicted a significantly lower 1-year increase in serum Mg. In patients with a urinary protein-to-creatinine ratio (uPCR)
doi_str_mv 10.1093/ndt/gfy119
format Article
fullrecord <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_2045273704</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><oup_id>10.1093/ndt/gfy119</oup_id><sourcerecordid>2045273704</sourcerecordid><originalsourceid>FETCH-LOGICAL-c467t-6ecd1371bab28615e2614526e4186e58ebde7241ab449d5cb5bc5ffa124edc0f3</originalsourceid><addsrcrecordid>eNp9kM1q3DAYRUVo6Ex-NnmAok0hBJxIsiyPuyshfxBIFs3afJY-z6i1pKkkU7ztk8fFaZZZ3cU9nMUh5IyzS86a8sqbfLXtJ86bA7LmUrFClJvqE1nPJy9YxZoVOUrpJ2OsEXX9maxEUzdKMb4mf59jyGj9GC0UkFLQFjIaGtHDQB1sPSY7OvoHUrZ-SwcEk2gOdDftw3Kjs_CNAtXBueApDqhzDMOUkULnQ3Qw2DxR66nexeCtpr-s8ThRYxNCwhNy2MOQ8PRtj8nL7c2P6_vi8enu4fr7Y6GlqnOhUBte1ryDTmwUr1AoLiuhUPKNwmqDncFaSA6dlI2pdFd1uup74EKi0awvj8n54t3H8HvElFtnk8ZhAI9hTK1gs64uayZn9GJBdQwpRezbfbQO4tRy1v5r3s7N26X5DH95846dQ_OO_o88A18XIIz7j0Sv1k2OVA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2045273704</pqid></control><display><type>article</type><title>Proteinuria-associated renal magnesium wasting leads to hypomagnesemia: a common electrolyte abnormality in chronic kidney disease</title><source>Oxford University Press Journals All Titles (1996-Current)</source><source>MEDLINE</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>Alma/SFX Local Collection</source><creator>Oka, Tatsufumi ; Hamano, Takayuki ; Sakaguchi, Yusuke ; Yamaguchi, Satoshi ; Kubota, Keiichi ; Senda, Masamitsu ; Yonemoto, Sayoko ; Shimada, Karin ; Matsumoto, Ayumi ; Hashimoto, Nobuhiro ; Mori, Daisuke ; Monden, Chikako ; Takahashi, Atsushi ; Obi, Yoshitsugu ; Yamamoto, Ryohei ; Takabatake, Yoshitsugu ; Kaimori, Jun-Ya ; Moriyama, Toshiki ; Horio, Masaru ; Matsui, Isao ; Isaka, Yoshitaka</creator><creatorcontrib>Oka, Tatsufumi ; Hamano, Takayuki ; Sakaguchi, Yusuke ; Yamaguchi, Satoshi ; Kubota, Keiichi ; Senda, Masamitsu ; Yonemoto, Sayoko ; Shimada, Karin ; Matsumoto, Ayumi ; Hashimoto, Nobuhiro ; Mori, Daisuke ; Monden, Chikako ; Takahashi, Atsushi ; Obi, Yoshitsugu ; Yamamoto, Ryohei ; Takabatake, Yoshitsugu ; Kaimori, Jun-Ya ; Moriyama, Toshiki ; Horio, Masaru ; Matsui, Isao ; Isaka, Yoshitaka</creatorcontrib><description>Abstract Background Hypomagnesemia (Hypo-Mg) predicts mortality and chronic kidney disease (CKD) progression. However, in CKD, its prevalence, kidney-intrinsic risk factors, and the effectiveness of oral magnesium (Mg) therapy on serum Mg levels is uncertain. Methods In a cross-sectional study enrolling pre-dialysis outpatients with CKD, the prevalence of electrolyte abnormalities (Mg, sodium, potassium, calcium and phosphorus) was compared. In an open-label randomized controlled trial (RCT), we randomly assigned CKD patients to either the magnesium oxide (MgO) or control arm. The outcome was serum Mg levels at 1 year. Results In 5126 patients, Hypo-Mg was the most common electrolyte abnormality (14.7%) with similar prevalence across stages of CKD. Positive proteinuria was a risk factor of Hypo-Mg (odds ratio 2.2; 95% confidence interval 1.2–4.0). However, stratifying the analyses by diabetes mellitus (DM), it was not significant in DM (Pinteraction = 0.04). We enrolled 114 patients in the RCT. Baseline analyses showed that higher proteinuria was associated with higher fractional excretion of Mg. This relationship between proteinuria and renal Mg wasting was mediated by urinary tubular markers in mediation analyses. In the MgO arm, higher proteinuria or tubular markers predicted a significantly lower 1-year increase in serum Mg. In patients with a urinary protein-to-creatinine ratio (uPCR) &lt;0.3 g/gCre, serum Mg at 1 year was 2.4 and 2.0 mg/dL in the MgO and control arms, respectively (P &lt; 0.001), with no significant between-group difference in patients whose uPCR was ≥0.3 g/gCre (Pinteraction=0.001). Conclusions Proteinuria leads to renal Mg wasting through tubular injuries, which explains the high prevalence of Hypo-Mg in CKD.</description><identifier>ISSN: 0931-0509</identifier><identifier>EISSN: 1460-2385</identifier><identifier>DOI: 10.1093/ndt/gfy119</identifier><identifier>PMID: 29796601</identifier><language>eng</language><publisher>England: Oxford University Press</publisher><subject>Adult ; Biomarkers - blood ; Biomarkers - urine ; Cross-Sectional Studies ; Disease Progression ; Electrolytes - metabolism ; Female ; Follow-Up Studies ; Humans ; Japan - epidemiology ; Kidney Function Tests ; Magnesium - metabolism ; Magnesium Oxide - therapeutic use ; Male ; Middle Aged ; Outpatients ; Prevalence ; Proteinuria - complications ; Proteinuria - drug therapy ; Proteinuria - metabolism ; Renal Insufficiency, Chronic - complications ; Renal Insufficiency, Chronic - drug therapy ; Renal Insufficiency, Chronic - metabolism ; Renal Tubular Transport, Inborn Errors - epidemiology ; Renal Tubular Transport, Inborn Errors - etiology ; Renal Tubular Transport, Inborn Errors - prevention &amp; control ; Retrospective Studies</subject><ispartof>Nephrology, dialysis, transplantation, 2019-07, Vol.34 (7), p.1154-1162</ispartof><rights>The Author(s) 2018. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved. 2018</rights><rights>The Author(s) 2018. Published by Oxford University Press on behalf of ERA-EDTA. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c467t-6ecd1371bab28615e2614526e4186e58ebde7241ab449d5cb5bc5ffa124edc0f3</citedby><cites>FETCH-LOGICAL-c467t-6ecd1371bab28615e2614526e4186e58ebde7241ab449d5cb5bc5ffa124edc0f3</cites><orcidid>0000-0001-7032-4383</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,1578,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29796601$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Oka, Tatsufumi</creatorcontrib><creatorcontrib>Hamano, Takayuki</creatorcontrib><creatorcontrib>Sakaguchi, Yusuke</creatorcontrib><creatorcontrib>Yamaguchi, Satoshi</creatorcontrib><creatorcontrib>Kubota, Keiichi</creatorcontrib><creatorcontrib>Senda, Masamitsu</creatorcontrib><creatorcontrib>Yonemoto, Sayoko</creatorcontrib><creatorcontrib>Shimada, Karin</creatorcontrib><creatorcontrib>Matsumoto, Ayumi</creatorcontrib><creatorcontrib>Hashimoto, Nobuhiro</creatorcontrib><creatorcontrib>Mori, Daisuke</creatorcontrib><creatorcontrib>Monden, Chikako</creatorcontrib><creatorcontrib>Takahashi, Atsushi</creatorcontrib><creatorcontrib>Obi, Yoshitsugu</creatorcontrib><creatorcontrib>Yamamoto, Ryohei</creatorcontrib><creatorcontrib>Takabatake, Yoshitsugu</creatorcontrib><creatorcontrib>Kaimori, Jun-Ya</creatorcontrib><creatorcontrib>Moriyama, Toshiki</creatorcontrib><creatorcontrib>Horio, Masaru</creatorcontrib><creatorcontrib>Matsui, Isao</creatorcontrib><creatorcontrib>Isaka, Yoshitaka</creatorcontrib><title>Proteinuria-associated renal magnesium wasting leads to hypomagnesemia: a common electrolyte abnormality in chronic kidney disease</title><title>Nephrology, dialysis, transplantation</title><addtitle>Nephrol Dial Transplant</addtitle><description>Abstract Background Hypomagnesemia (Hypo-Mg) predicts mortality and chronic kidney disease (CKD) progression. However, in CKD, its prevalence, kidney-intrinsic risk factors, and the effectiveness of oral magnesium (Mg) therapy on serum Mg levels is uncertain. Methods In a cross-sectional study enrolling pre-dialysis outpatients with CKD, the prevalence of electrolyte abnormalities (Mg, sodium, potassium, calcium and phosphorus) was compared. In an open-label randomized controlled trial (RCT), we randomly assigned CKD patients to either the magnesium oxide (MgO) or control arm. The outcome was serum Mg levels at 1 year. Results In 5126 patients, Hypo-Mg was the most common electrolyte abnormality (14.7%) with similar prevalence across stages of CKD. Positive proteinuria was a risk factor of Hypo-Mg (odds ratio 2.2; 95% confidence interval 1.2–4.0). However, stratifying the analyses by diabetes mellitus (DM), it was not significant in DM (Pinteraction = 0.04). We enrolled 114 patients in the RCT. Baseline analyses showed that higher proteinuria was associated with higher fractional excretion of Mg. This relationship between proteinuria and renal Mg wasting was mediated by urinary tubular markers in mediation analyses. In the MgO arm, higher proteinuria or tubular markers predicted a significantly lower 1-year increase in serum Mg. In patients with a urinary protein-to-creatinine ratio (uPCR) &lt;0.3 g/gCre, serum Mg at 1 year was 2.4 and 2.0 mg/dL in the MgO and control arms, respectively (P &lt; 0.001), with no significant between-group difference in patients whose uPCR was ≥0.3 g/gCre (Pinteraction=0.001). Conclusions Proteinuria leads to renal Mg wasting through tubular injuries, which explains the high prevalence of Hypo-Mg in CKD.</description><subject>Adult</subject><subject>Biomarkers - blood</subject><subject>Biomarkers - urine</subject><subject>Cross-Sectional Studies</subject><subject>Disease Progression</subject><subject>Electrolytes - metabolism</subject><subject>Female</subject><subject>Follow-Up Studies</subject><subject>Humans</subject><subject>Japan - epidemiology</subject><subject>Kidney Function Tests</subject><subject>Magnesium - metabolism</subject><subject>Magnesium Oxide - therapeutic use</subject><subject>Male</subject><subject>Middle Aged</subject><subject>Outpatients</subject><subject>Prevalence</subject><subject>Proteinuria - complications</subject><subject>Proteinuria - drug therapy</subject><subject>Proteinuria - metabolism</subject><subject>Renal Insufficiency, Chronic - complications</subject><subject>Renal Insufficiency, Chronic - drug therapy</subject><subject>Renal Insufficiency, Chronic - metabolism</subject><subject>Renal Tubular Transport, Inborn Errors - epidemiology</subject><subject>Renal Tubular Transport, Inborn Errors - etiology</subject><subject>Renal Tubular Transport, Inborn Errors - prevention &amp; control</subject><subject>Retrospective Studies</subject><issn>0931-0509</issn><issn>1460-2385</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kM1q3DAYRUVo6Ex-NnmAok0hBJxIsiyPuyshfxBIFs3afJY-z6i1pKkkU7ztk8fFaZZZ3cU9nMUh5IyzS86a8sqbfLXtJ86bA7LmUrFClJvqE1nPJy9YxZoVOUrpJ2OsEXX9maxEUzdKMb4mf59jyGj9GC0UkFLQFjIaGtHDQB1sPSY7OvoHUrZ-SwcEk2gOdDftw3Kjs_CNAtXBueApDqhzDMOUkULnQ3Qw2DxR66nexeCtpr-s8ThRYxNCwhNy2MOQ8PRtj8nL7c2P6_vi8enu4fr7Y6GlqnOhUBte1ryDTmwUr1AoLiuhUPKNwmqDncFaSA6dlI2pdFd1uup74EKi0awvj8n54t3H8HvElFtnk8ZhAI9hTK1gs64uayZn9GJBdQwpRezbfbQO4tRy1v5r3s7N26X5DH95846dQ_OO_o88A18XIIz7j0Sv1k2OVA</recordid><startdate>20190701</startdate><enddate>20190701</enddate><creator>Oka, Tatsufumi</creator><creator>Hamano, Takayuki</creator><creator>Sakaguchi, Yusuke</creator><creator>Yamaguchi, Satoshi</creator><creator>Kubota, Keiichi</creator><creator>Senda, Masamitsu</creator><creator>Yonemoto, Sayoko</creator><creator>Shimada, Karin</creator><creator>Matsumoto, Ayumi</creator><creator>Hashimoto, Nobuhiro</creator><creator>Mori, Daisuke</creator><creator>Monden, Chikako</creator><creator>Takahashi, Atsushi</creator><creator>Obi, Yoshitsugu</creator><creator>Yamamoto, Ryohei</creator><creator>Takabatake, Yoshitsugu</creator><creator>Kaimori, Jun-Ya</creator><creator>Moriyama, Toshiki</creator><creator>Horio, Masaru</creator><creator>Matsui, Isao</creator><creator>Isaka, Yoshitaka</creator><general>Oxford University Press</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0001-7032-4383</orcidid></search><sort><creationdate>20190701</creationdate><title>Proteinuria-associated renal magnesium wasting leads to hypomagnesemia: a common electrolyte abnormality in chronic kidney disease</title><author>Oka, Tatsufumi ; Hamano, Takayuki ; Sakaguchi, Yusuke ; Yamaguchi, Satoshi ; Kubota, Keiichi ; Senda, Masamitsu ; Yonemoto, Sayoko ; Shimada, Karin ; Matsumoto, Ayumi ; Hashimoto, Nobuhiro ; Mori, Daisuke ; Monden, Chikako ; Takahashi, Atsushi ; Obi, Yoshitsugu ; Yamamoto, Ryohei ; Takabatake, Yoshitsugu ; Kaimori, Jun-Ya ; Moriyama, Toshiki ; Horio, Masaru ; Matsui, Isao ; Isaka, Yoshitaka</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c467t-6ecd1371bab28615e2614526e4186e58ebde7241ab449d5cb5bc5ffa124edc0f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Adult</topic><topic>Biomarkers - blood</topic><topic>Biomarkers - urine</topic><topic>Cross-Sectional Studies</topic><topic>Disease Progression</topic><topic>Electrolytes - metabolism</topic><topic>Female</topic><topic>Follow-Up Studies</topic><topic>Humans</topic><topic>Japan - epidemiology</topic><topic>Kidney Function Tests</topic><topic>Magnesium - metabolism</topic><topic>Magnesium Oxide - therapeutic use</topic><topic>Male</topic><topic>Middle Aged</topic><topic>Outpatients</topic><topic>Prevalence</topic><topic>Proteinuria - complications</topic><topic>Proteinuria - drug therapy</topic><topic>Proteinuria - metabolism</topic><topic>Renal Insufficiency, Chronic - complications</topic><topic>Renal Insufficiency, Chronic - drug therapy</topic><topic>Renal Insufficiency, Chronic - metabolism</topic><topic>Renal Tubular Transport, Inborn Errors - epidemiology</topic><topic>Renal Tubular Transport, Inborn Errors - etiology</topic><topic>Renal Tubular Transport, Inborn Errors - prevention &amp; control</topic><topic>Retrospective Studies</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Oka, Tatsufumi</creatorcontrib><creatorcontrib>Hamano, Takayuki</creatorcontrib><creatorcontrib>Sakaguchi, Yusuke</creatorcontrib><creatorcontrib>Yamaguchi, Satoshi</creatorcontrib><creatorcontrib>Kubota, Keiichi</creatorcontrib><creatorcontrib>Senda, Masamitsu</creatorcontrib><creatorcontrib>Yonemoto, Sayoko</creatorcontrib><creatorcontrib>Shimada, Karin</creatorcontrib><creatorcontrib>Matsumoto, Ayumi</creatorcontrib><creatorcontrib>Hashimoto, Nobuhiro</creatorcontrib><creatorcontrib>Mori, Daisuke</creatorcontrib><creatorcontrib>Monden, Chikako</creatorcontrib><creatorcontrib>Takahashi, Atsushi</creatorcontrib><creatorcontrib>Obi, Yoshitsugu</creatorcontrib><creatorcontrib>Yamamoto, Ryohei</creatorcontrib><creatorcontrib>Takabatake, Yoshitsugu</creatorcontrib><creatorcontrib>Kaimori, Jun-Ya</creatorcontrib><creatorcontrib>Moriyama, Toshiki</creatorcontrib><creatorcontrib>Horio, Masaru</creatorcontrib><creatorcontrib>Matsui, Isao</creatorcontrib><creatorcontrib>Isaka, Yoshitaka</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Nephrology, dialysis, transplantation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Oka, Tatsufumi</au><au>Hamano, Takayuki</au><au>Sakaguchi, Yusuke</au><au>Yamaguchi, Satoshi</au><au>Kubota, Keiichi</au><au>Senda, Masamitsu</au><au>Yonemoto, Sayoko</au><au>Shimada, Karin</au><au>Matsumoto, Ayumi</au><au>Hashimoto, Nobuhiro</au><au>Mori, Daisuke</au><au>Monden, Chikako</au><au>Takahashi, Atsushi</au><au>Obi, Yoshitsugu</au><au>Yamamoto, Ryohei</au><au>Takabatake, Yoshitsugu</au><au>Kaimori, Jun-Ya</au><au>Moriyama, Toshiki</au><au>Horio, Masaru</au><au>Matsui, Isao</au><au>Isaka, Yoshitaka</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Proteinuria-associated renal magnesium wasting leads to hypomagnesemia: a common electrolyte abnormality in chronic kidney disease</atitle><jtitle>Nephrology, dialysis, transplantation</jtitle><addtitle>Nephrol Dial Transplant</addtitle><date>2019-07-01</date><risdate>2019</risdate><volume>34</volume><issue>7</issue><spage>1154</spage><epage>1162</epage><pages>1154-1162</pages><issn>0931-0509</issn><eissn>1460-2385</eissn><abstract>Abstract Background Hypomagnesemia (Hypo-Mg) predicts mortality and chronic kidney disease (CKD) progression. However, in CKD, its prevalence, kidney-intrinsic risk factors, and the effectiveness of oral magnesium (Mg) therapy on serum Mg levels is uncertain. Methods In a cross-sectional study enrolling pre-dialysis outpatients with CKD, the prevalence of electrolyte abnormalities (Mg, sodium, potassium, calcium and phosphorus) was compared. In an open-label randomized controlled trial (RCT), we randomly assigned CKD patients to either the magnesium oxide (MgO) or control arm. The outcome was serum Mg levels at 1 year. Results In 5126 patients, Hypo-Mg was the most common electrolyte abnormality (14.7%) with similar prevalence across stages of CKD. Positive proteinuria was a risk factor of Hypo-Mg (odds ratio 2.2; 95% confidence interval 1.2–4.0). However, stratifying the analyses by diabetes mellitus (DM), it was not significant in DM (Pinteraction = 0.04). We enrolled 114 patients in the RCT. Baseline analyses showed that higher proteinuria was associated with higher fractional excretion of Mg. This relationship between proteinuria and renal Mg wasting was mediated by urinary tubular markers in mediation analyses. In the MgO arm, higher proteinuria or tubular markers predicted a significantly lower 1-year increase in serum Mg. In patients with a urinary protein-to-creatinine ratio (uPCR) &lt;0.3 g/gCre, serum Mg at 1 year was 2.4 and 2.0 mg/dL in the MgO and control arms, respectively (P &lt; 0.001), with no significant between-group difference in patients whose uPCR was ≥0.3 g/gCre (Pinteraction=0.001). Conclusions Proteinuria leads to renal Mg wasting through tubular injuries, which explains the high prevalence of Hypo-Mg in CKD.</abstract><cop>England</cop><pub>Oxford University Press</pub><pmid>29796601</pmid><doi>10.1093/ndt/gfy119</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-7032-4383</orcidid></addata></record>
fulltext fulltext
identifier ISSN: 0931-0509
ispartof Nephrology, dialysis, transplantation, 2019-07, Vol.34 (7), p.1154-1162
issn 0931-0509
1460-2385
language eng
recordid cdi_proquest_miscellaneous_2045273704
source Oxford University Press Journals All Titles (1996-Current); MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Alma/SFX Local Collection
subjects Adult
Biomarkers - blood
Biomarkers - urine
Cross-Sectional Studies
Disease Progression
Electrolytes - metabolism
Female
Follow-Up Studies
Humans
Japan - epidemiology
Kidney Function Tests
Magnesium - metabolism
Magnesium Oxide - therapeutic use
Male
Middle Aged
Outpatients
Prevalence
Proteinuria - complications
Proteinuria - drug therapy
Proteinuria - metabolism
Renal Insufficiency, Chronic - complications
Renal Insufficiency, Chronic - drug therapy
Renal Insufficiency, Chronic - metabolism
Renal Tubular Transport, Inborn Errors - epidemiology
Renal Tubular Transport, Inborn Errors - etiology
Renal Tubular Transport, Inborn Errors - prevention & control
Retrospective Studies
title Proteinuria-associated renal magnesium wasting leads to hypomagnesemia: a common electrolyte abnormality in chronic kidney disease
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-02T07%3A11%3A49IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Proteinuria-associated%20renal%20magnesium%20wasting%20leads%20to%20hypomagnesemia:%20a%20common%20electrolyte%20abnormality%20in%20chronic%20kidney%20disease&rft.jtitle=Nephrology,%20dialysis,%20transplantation&rft.au=Oka,%20Tatsufumi&rft.date=2019-07-01&rft.volume=34&rft.issue=7&rft.spage=1154&rft.epage=1162&rft.pages=1154-1162&rft.issn=0931-0509&rft.eissn=1460-2385&rft_id=info:doi/10.1093/ndt/gfy119&rft_dat=%3Cproquest_cross%3E2045273704%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2045273704&rft_id=info:pmid/29796601&rft_oup_id=10.1093/ndt/gfy119&rfr_iscdi=true