Administration of oral charcoal adsorbent (AST-120) suppresses low-turnover bone progression in uraemic rats

Background. Using a rat model of renal failure with normal parathyroid hormone levels, we had demonstrated previously that bone formation decreased depending on the degree of renal dysfunction, and hypothesized that uraemic toxins (UTx) are associated with the development of low-turnover bone develo...

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Veröffentlicht in:Nephrology, dialysis, transplantation dialysis, transplantation, 2006-10, Vol.21 (10), p.2768-2774
Hauptverfasser: Iwasaki, Yoshiko, Yamato, Hideyuki, Nii-Kono, Tomoko, Fujieda, Ayako, Uchida, Motoyuki, Hosokawa, Atsuko, Motojima, Masaru, Fukagawa, Masafumi
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container_end_page 2774
container_issue 10
container_start_page 2768
container_title Nephrology, dialysis, transplantation
container_volume 21
creator Iwasaki, Yoshiko
Yamato, Hideyuki
Nii-Kono, Tomoko
Fujieda, Ayako
Uchida, Motoyuki
Hosokawa, Atsuko
Motojima, Masaru
Fukagawa, Masafumi
description Background. Using a rat model of renal failure with normal parathyroid hormone levels, we had demonstrated previously that bone formation decreased depending on the degree of renal dysfunction, and hypothesized that uraemic toxins (UTx) are associated with the development of low-turnover bone development, complicating renal failure. In this study, focusing on indoxyl sulphate (IS) as a representative UTx, we analysed the effect of an oral charcoal adsorbent AST-120, which removes uraemic toxins and their precursors from the gastrointestinal tract, on bone turnover. Methods. AST-120 or vehicle was administered orally to model rats with uraemia and low turnover bone. Bone turnover was analysed by histomorphometry. Expression of osteoblast-related genes and oat-3 gene was analysed by reverse transcription polymerase chain reaction. Results. In rats treated with vehicle, serum IS level increased with time after renal dysfunction, while bone formation decreased accompanied by down-regulation of the parathyroid/parathyroid-related peptide hormone receptor, alkaline phosphatase and osteocalcin genes. Administration of AST-120 inhibited the accumulation of IS in blood and ameliorated bone formation. Bone formation rate was 2.4 ± 1.7 µm3/m2/year in controls given vehicle and was 11.7 ± 2.4 µm3/m2/year in rats administered with AST-120 (P < 0.05). AST-120 treatment also reversed the down-regulation of osteoblast-related genes. Gene expression of oat-3 was detected in the tibia of rats. Conclusion. Administration of the oral charcoal adsorbent AST-120 decreases the osteoblast cytotoxicity of UTx including IS, and suppresses progression of low bone turnover in uraemic rats.
doi_str_mv 10.1093/ndt/gfl311
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Using a rat model of renal failure with normal parathyroid hormone levels, we had demonstrated previously that bone formation decreased depending on the degree of renal dysfunction, and hypothesized that uraemic toxins (UTx) are associated with the development of low-turnover bone development, complicating renal failure. In this study, focusing on indoxyl sulphate (IS) as a representative UTx, we analysed the effect of an oral charcoal adsorbent AST-120, which removes uraemic toxins and their precursors from the gastrointestinal tract, on bone turnover. Methods. AST-120 or vehicle was administered orally to model rats with uraemia and low turnover bone. Bone turnover was analysed by histomorphometry. Expression of osteoblast-related genes and oat-3 gene was analysed by reverse transcription polymerase chain reaction. Results. In rats treated with vehicle, serum IS level increased with time after renal dysfunction, while bone formation decreased accompanied by down-regulation of the parathyroid/parathyroid-related peptide hormone receptor, alkaline phosphatase and osteocalcin genes. Administration of AST-120 inhibited the accumulation of IS in blood and ameliorated bone formation. Bone formation rate was 2.4 ± 1.7 µm3/m2/year in controls given vehicle and was 11.7 ± 2.4 µm3/m2/year in rats administered with AST-120 (P &lt; 0.05). AST-120 treatment also reversed the down-regulation of osteoblast-related genes. Gene expression of oat-3 was detected in the tibia of rats. Conclusion. Administration of the oral charcoal adsorbent AST-120 decreases the osteoblast cytotoxicity of UTx including IS, and suppresses progression of low bone turnover in uraemic rats.</description><identifier>ISSN: 0931-0509</identifier><identifier>EISSN: 1460-2385</identifier><identifier>DOI: 10.1093/ndt/gfl311</identifier><identifier>PMID: 16820376</identifier><identifier>CODEN: NDTREA</identifier><language>eng</language><publisher>Oxford: Oxford University Press</publisher><subject>Administration, Oral ; Alkaline Phosphatase - blood ; Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy ; Animals ; Biological and medical sciences ; Bone and Bones - drug effects ; Bone and Bones - metabolism ; Calcium - blood ; Calcium - urine ; Carbon - administration &amp; dosage ; Carbon - pharmacology ; Charcoal - administration &amp; dosage ; Charcoal - pharmacology ; Chromatography, High Pressure Liquid ; Creatine - blood ; Creatine - urine ; Emergency and intensive care: renal failure. Dialysis management ; Gene Expression - drug effects ; Glomerulonephritis ; Indican - blood ; indoxyl sulphate ; Intensive care medicine ; low bone turnover ; Male ; Medical sciences ; Nephrology. Urinary tract diseases ; Nephropathies. Renovascular diseases. Renal failure ; oral charcoal adsorbent ; Organic Anion Transporters, Sodium-Independent - genetics ; Osteoblasts - drug effects ; Osteoblasts - metabolism ; Osteogenesis - drug effects ; Oxides - administration &amp; dosage ; Oxides - pharmacology ; Parathyroid Hormone - metabolism ; Phosphorus - blood ; Rats ; Rats, Sprague-Dawley ; Renal failure ; Reverse Transcriptase Polymerase Chain Reaction ; Tibia - drug effects ; Tibia - metabolism ; uraemic toxins ; Uremia - chemically induced ; Uremia - metabolism</subject><ispartof>Nephrology, dialysis, transplantation, 2006-10, Vol.21 (10), p.2768-2774</ispartof><rights>2006 INIST-CNRS</rights><rights>Copyright Oxford University Press(England) Oct 2006</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c477t-256022c958c695d31dfd5b27618b21f0388c1864d9e1b9e7e9f99e84554229b3</citedby><cites>FETCH-LOGICAL-c477t-256022c958c695d31dfd5b27618b21f0388c1864d9e1b9e7e9f99e84554229b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=18225123$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/16820376$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Iwasaki, Yoshiko</creatorcontrib><creatorcontrib>Yamato, Hideyuki</creatorcontrib><creatorcontrib>Nii-Kono, Tomoko</creatorcontrib><creatorcontrib>Fujieda, Ayako</creatorcontrib><creatorcontrib>Uchida, Motoyuki</creatorcontrib><creatorcontrib>Hosokawa, Atsuko</creatorcontrib><creatorcontrib>Motojima, Masaru</creatorcontrib><creatorcontrib>Fukagawa, Masafumi</creatorcontrib><title>Administration of oral charcoal adsorbent (AST-120) suppresses low-turnover bone progression in uraemic rats</title><title>Nephrology, dialysis, transplantation</title><addtitle>Nephrol. Dial. Transplant</addtitle><description>Background. Using a rat model of renal failure with normal parathyroid hormone levels, we had demonstrated previously that bone formation decreased depending on the degree of renal dysfunction, and hypothesized that uraemic toxins (UTx) are associated with the development of low-turnover bone development, complicating renal failure. In this study, focusing on indoxyl sulphate (IS) as a representative UTx, we analysed the effect of an oral charcoal adsorbent AST-120, which removes uraemic toxins and their precursors from the gastrointestinal tract, on bone turnover. Methods. AST-120 or vehicle was administered orally to model rats with uraemia and low turnover bone. Bone turnover was analysed by histomorphometry. Expression of osteoblast-related genes and oat-3 gene was analysed by reverse transcription polymerase chain reaction. Results. In rats treated with vehicle, serum IS level increased with time after renal dysfunction, while bone formation decreased accompanied by down-regulation of the parathyroid/parathyroid-related peptide hormone receptor, alkaline phosphatase and osteocalcin genes. Administration of AST-120 inhibited the accumulation of IS in blood and ameliorated bone formation. Bone formation rate was 2.4 ± 1.7 µm3/m2/year in controls given vehicle and was 11.7 ± 2.4 µm3/m2/year in rats administered with AST-120 (P &lt; 0.05). AST-120 treatment also reversed the down-regulation of osteoblast-related genes. Gene expression of oat-3 was detected in the tibia of rats. Conclusion. Administration of the oral charcoal adsorbent AST-120 decreases the osteoblast cytotoxicity of UTx including IS, and suppresses progression of low bone turnover in uraemic rats.</description><subject>Administration, Oral</subject><subject>Alkaline Phosphatase - blood</subject><subject>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</subject><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Bone and Bones - drug effects</subject><subject>Bone and Bones - metabolism</subject><subject>Calcium - blood</subject><subject>Calcium - urine</subject><subject>Carbon - administration &amp; dosage</subject><subject>Carbon - pharmacology</subject><subject>Charcoal - administration &amp; dosage</subject><subject>Charcoal - pharmacology</subject><subject>Chromatography, High Pressure Liquid</subject><subject>Creatine - blood</subject><subject>Creatine - urine</subject><subject>Emergency and intensive care: renal failure. Dialysis management</subject><subject>Gene Expression - drug effects</subject><subject>Glomerulonephritis</subject><subject>Indican - blood</subject><subject>indoxyl sulphate</subject><subject>Intensive care medicine</subject><subject>low bone turnover</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Nephrology. Urinary tract diseases</subject><subject>Nephropathies. Renovascular diseases. Renal failure</subject><subject>oral charcoal adsorbent</subject><subject>Organic Anion Transporters, Sodium-Independent - genetics</subject><subject>Osteoblasts - drug effects</subject><subject>Osteoblasts - metabolism</subject><subject>Osteogenesis - drug effects</subject><subject>Oxides - administration &amp; dosage</subject><subject>Oxides - pharmacology</subject><subject>Parathyroid Hormone - metabolism</subject><subject>Phosphorus - blood</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Renal failure</subject><subject>Reverse Transcriptase Polymerase Chain Reaction</subject><subject>Tibia - drug effects</subject><subject>Tibia - metabolism</subject><subject>uraemic toxins</subject><subject>Uremia - chemically induced</subject><subject>Uremia - metabolism</subject><issn>0931-0509</issn><issn>1460-2385</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNpd0V1rFDEUBuBQlHat3vQHlFBQVBibk0y-LpdWXWFB0L2Q3oRMJtNOO5Nskxk__r1ZdrHgVQLn4eXkDUJnQD4A0ewytNPlbTcwgCO0gFqQijLFn6FFGUJFONEn6EXO94QQTaU8RicgFCVMigUalu3Yhz5PyU59DDh2OCY7YHdnk4vlYtscU-PDhN8uv28qoOQdzvN2m3zOPuMh_qqmOYX40yfcxODxNsXb3XCX1gc8J-vH3uGSn1-i550dsn91OE_R5tPHzdWqWn_9_OVqua5cLeVUUS4IpU5z5YTmLYO2a3lDpQDVUOgIU8qBEnWrPTTaS687rb2qOa8p1Q07RW_2sWWVx9nnyYx9dn4YbPBxzgY0o4pAXeDFf_A-lreU1QwFBVxrKgp6v0cuxZyT78w29aNNfwwQs-vflP7Nvv-Czw-JczP69okeCi_g9QHY7OzQJRtcn5-copQDZcVVe1e-xv_-N7fpwQjJJDerHzfmeqWuv-nN2qzZXyTZnQA</recordid><startdate>20061001</startdate><enddate>20061001</enddate><creator>Iwasaki, Yoshiko</creator><creator>Yamato, Hideyuki</creator><creator>Nii-Kono, Tomoko</creator><creator>Fujieda, Ayako</creator><creator>Uchida, Motoyuki</creator><creator>Hosokawa, Atsuko</creator><creator>Motojima, Masaru</creator><creator>Fukagawa, Masafumi</creator><general>Oxford University Press</general><general>Oxford Publishing Limited (England)</general><scope>BSCLL</scope><scope>IQODW</scope><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>7QP</scope><scope>7T5</scope><scope>H94</scope><scope>K9.</scope></search><sort><creationdate>20061001</creationdate><title>Administration of oral charcoal adsorbent (AST-120) suppresses low-turnover bone progression in uraemic rats</title><author>Iwasaki, Yoshiko ; Yamato, Hideyuki ; Nii-Kono, Tomoko ; Fujieda, Ayako ; Uchida, Motoyuki ; Hosokawa, Atsuko ; Motojima, Masaru ; Fukagawa, Masafumi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c477t-256022c958c695d31dfd5b27618b21f0388c1864d9e1b9e7e9f99e84554229b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Administration, Oral</topic><topic>Alkaline Phosphatase - blood</topic><topic>Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy</topic><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Bone and Bones - drug effects</topic><topic>Bone and Bones - metabolism</topic><topic>Calcium - blood</topic><topic>Calcium - urine</topic><topic>Carbon - administration &amp; dosage</topic><topic>Carbon - pharmacology</topic><topic>Charcoal - administration &amp; dosage</topic><topic>Charcoal - pharmacology</topic><topic>Chromatography, High Pressure Liquid</topic><topic>Creatine - blood</topic><topic>Creatine - urine</topic><topic>Emergency and intensive care: renal failure. Dialysis management</topic><topic>Gene Expression - drug effects</topic><topic>Glomerulonephritis</topic><topic>Indican - blood</topic><topic>indoxyl sulphate</topic><topic>Intensive care medicine</topic><topic>low bone turnover</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Nephrology. Urinary tract diseases</topic><topic>Nephropathies. Renovascular diseases. Renal failure</topic><topic>oral charcoal adsorbent</topic><topic>Organic Anion Transporters, Sodium-Independent - genetics</topic><topic>Osteoblasts - drug effects</topic><topic>Osteoblasts - metabolism</topic><topic>Osteogenesis - drug effects</topic><topic>Oxides - administration &amp; dosage</topic><topic>Oxides - pharmacology</topic><topic>Parathyroid Hormone - metabolism</topic><topic>Phosphorus - blood</topic><topic>Rats</topic><topic>Rats, Sprague-Dawley</topic><topic>Renal failure</topic><topic>Reverse Transcriptase Polymerase Chain Reaction</topic><topic>Tibia - drug effects</topic><topic>Tibia - metabolism</topic><topic>uraemic toxins</topic><topic>Uremia - chemically induced</topic><topic>Uremia - metabolism</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Iwasaki, Yoshiko</creatorcontrib><creatorcontrib>Yamato, Hideyuki</creatorcontrib><creatorcontrib>Nii-Kono, Tomoko</creatorcontrib><creatorcontrib>Fujieda, Ayako</creatorcontrib><creatorcontrib>Uchida, Motoyuki</creatorcontrib><creatorcontrib>Hosokawa, Atsuko</creatorcontrib><creatorcontrib>Motojima, Masaru</creatorcontrib><creatorcontrib>Fukagawa, Masafumi</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Immunology Abstracts</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><jtitle>Nephrology, dialysis, transplantation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Iwasaki, Yoshiko</au><au>Yamato, Hideyuki</au><au>Nii-Kono, Tomoko</au><au>Fujieda, Ayako</au><au>Uchida, Motoyuki</au><au>Hosokawa, Atsuko</au><au>Motojima, Masaru</au><au>Fukagawa, Masafumi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Administration of oral charcoal adsorbent (AST-120) suppresses low-turnover bone progression in uraemic rats</atitle><jtitle>Nephrology, dialysis, transplantation</jtitle><addtitle>Nephrol. Dial. Transplant</addtitle><date>2006-10-01</date><risdate>2006</risdate><volume>21</volume><issue>10</issue><spage>2768</spage><epage>2774</epage><pages>2768-2774</pages><issn>0931-0509</issn><eissn>1460-2385</eissn><coden>NDTREA</coden><abstract>Background. Using a rat model of renal failure with normal parathyroid hormone levels, we had demonstrated previously that bone formation decreased depending on the degree of renal dysfunction, and hypothesized that uraemic toxins (UTx) are associated with the development of low-turnover bone development, complicating renal failure. In this study, focusing on indoxyl sulphate (IS) as a representative UTx, we analysed the effect of an oral charcoal adsorbent AST-120, which removes uraemic toxins and their precursors from the gastrointestinal tract, on bone turnover. Methods. AST-120 or vehicle was administered orally to model rats with uraemia and low turnover bone. Bone turnover was analysed by histomorphometry. Expression of osteoblast-related genes and oat-3 gene was analysed by reverse transcription polymerase chain reaction. Results. In rats treated with vehicle, serum IS level increased with time after renal dysfunction, while bone formation decreased accompanied by down-regulation of the parathyroid/parathyroid-related peptide hormone receptor, alkaline phosphatase and osteocalcin genes. Administration of AST-120 inhibited the accumulation of IS in blood and ameliorated bone formation. Bone formation rate was 2.4 ± 1.7 µm3/m2/year in controls given vehicle and was 11.7 ± 2.4 µm3/m2/year in rats administered with AST-120 (P &lt; 0.05). AST-120 treatment also reversed the down-regulation of osteoblast-related genes. Gene expression of oat-3 was detected in the tibia of rats. Conclusion. Administration of the oral charcoal adsorbent AST-120 decreases the osteoblast cytotoxicity of UTx including IS, and suppresses progression of low bone turnover in uraemic rats.</abstract><cop>Oxford</cop><pub>Oxford University Press</pub><pmid>16820376</pmid><doi>10.1093/ndt/gfl311</doi><tpages>7</tpages></addata></record>
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subjects Administration, Oral
Alkaline Phosphatase - blood
Anesthesia. Intensive care medicine. Transfusions. Cell therapy and gene therapy
Animals
Biological and medical sciences
Bone and Bones - drug effects
Bone and Bones - metabolism
Calcium - blood
Calcium - urine
Carbon - administration & dosage
Carbon - pharmacology
Charcoal - administration & dosage
Charcoal - pharmacology
Chromatography, High Pressure Liquid
Creatine - blood
Creatine - urine
Emergency and intensive care: renal failure. Dialysis management
Gene Expression - drug effects
Glomerulonephritis
Indican - blood
indoxyl sulphate
Intensive care medicine
low bone turnover
Male
Medical sciences
Nephrology. Urinary tract diseases
Nephropathies. Renovascular diseases. Renal failure
oral charcoal adsorbent
Organic Anion Transporters, Sodium-Independent - genetics
Osteoblasts - drug effects
Osteoblasts - metabolism
Osteogenesis - drug effects
Oxides - administration & dosage
Oxides - pharmacology
Parathyroid Hormone - metabolism
Phosphorus - blood
Rats
Rats, Sprague-Dawley
Renal failure
Reverse Transcriptase Polymerase Chain Reaction
Tibia - drug effects
Tibia - metabolism
uraemic toxins
Uremia - chemically induced
Uremia - metabolism
title Administration of oral charcoal adsorbent (AST-120) suppresses low-turnover bone progression in uraemic rats
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