Lactobacillus strains isolated from infant faeces possess potent inhibitory activity against intestinal alpha- and beta-glucosidases suggesting anti-diabetic potential

PURPOSE: Inhibitors of intestinal alpha-glucosidases are used therapeutically to treat type 2 diabetes mellitus. Bacteria such as Actinoplanes sp. naturally produce potent alpha-glucosidase inhibitor compounds, including the most widely available drug acarbose. It is not known whether lactic acid ba...

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Veröffentlicht in:European journal of nutrition 2014-10, Vol.53 (7), p.1465-1474
Hauptverfasser: Panwar, Harsh, Calderwood, Danielle, Grant, Irene R, Grover, Sunita, Green, Brian D
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container_issue 7
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creator Panwar, Harsh
Calderwood, Danielle
Grant, Irene R
Grover, Sunita
Green, Brian D
description PURPOSE: Inhibitors of intestinal alpha-glucosidases are used therapeutically to treat type 2 diabetes mellitus. Bacteria such as Actinoplanes sp. naturally produce potent alpha-glucosidase inhibitor compounds, including the most widely available drug acarbose. It is not known whether lactic acid bacteria (LAB) colonising the human gut possess inhibitory potential against glucosidases. Hence, the study was undertaken to screen LABs having inherent alpha- and beta-glucosidase inhibitory potential. METHODS: This study isolated, screened, identified and extracted Lactobacillus strains (Lb1–15) from human infant faecal samples determining their inhibitory activity against intestinal maltase, sucrase, lactase and amylase. Lactobacillus reference strains (Ref1–7), a Gram positive control (Ctrl1) and two Gram negative controls (Ctrl2–3), were also analysed to compare activity. RESULTS: Faecal isolates were identified by DNA sequencing, with the majority identified as unique strains of Lactobacillus plantarum. Some strains (L. plantarum, L. fermentum, L. casei and L. rhamnosus) had potent and broad spectrum inhibitory activities (up to 89 %; p 
doi_str_mv 10.1007/s00394-013-0649-9
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Bacteria such as Actinoplanes sp. naturally produce potent alpha-glucosidase inhibitor compounds, including the most widely available drug acarbose. It is not known whether lactic acid bacteria (LAB) colonising the human gut possess inhibitory potential against glucosidases. Hence, the study was undertaken to screen LABs having inherent alpha- and beta-glucosidase inhibitory potential. METHODS: This study isolated, screened, identified and extracted Lactobacillus strains (Lb1–15) from human infant faecal samples determining their inhibitory activity against intestinal maltase, sucrase, lactase and amylase. Lactobacillus reference strains (Ref1–7), a Gram positive control (Ctrl1) and two Gram negative controls (Ctrl2–3), were also analysed to compare activity. RESULTS: Faecal isolates were identified by DNA sequencing, with the majority identified as unique strains of Lactobacillus plantarum. Some strains (L. plantarum, L. fermentum, L. casei and L. rhamnosus) had potent and broad spectrum inhibitory activities (up to 89 %; p &lt; 0.001; 500 mg/ml wet weight) comparable to acarbose (up to 88 %; p &lt; 0.001; 30 mg/ml). Inhibitory activity was concentration-dependent and was freely available in the supernatant, and was not present in other bacterial genera (Bifidobacterium bifidum and Escherichia coli or Salmonella typhimurium). Interestingly, the potency and spectrum of inhibitory activity across strains of a single species (L. plantarum) differed substantially. Some Lactobacillus extracts had broader spectrum activities than acarbose, effectively inhibiting beta-glucosidase activity (lactase) as well as alpha-glucosidase activities (maltase, sucrase and amylase). Anti-diabetic potential was indicated by the fact that oral gavage with a L. rhamnosus extract (1 g/kg) was able to reduce glucose excursions (Area under curve; 22 %; p &lt; 0.05) in rats during a carbohydrate challenge (starch; 2 g/kg). CONCLUSION: These results definitively demonstrate that Lactobacillus strains present in the human gut have alpha- and beta-glucosidase inhibitory activities and can reduce blood glucose responses in vivo. Although the potential use of LAB such as Lactobacillus as a dietary supplement, medicinal food or biotherapeutic for diabetes is uncertain, such an approach might offer advantages over drug therapies in terms of broader spectrum activities and fewer unpleasant side effects. Further characterisation of this bioactivity is warranted, and chronic studies should be undertaken in appropriate animal models or diabetic subjects.</description><identifier>ISSN: 1436-6207</identifier><identifier>EISSN: 1436-6215</identifier><identifier>DOI: 10.1007/s00394-013-0649-9</identifier><identifier>PMID: 24414142</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer-Verlag</publisher><subject><![CDATA[acarbose ; Acarbose - metabolism ; Actinoplanes ; adverse effects ; alpha-glucosidase ; alpha-Glucosidases - metabolism ; Amylases - antagonists & inhibitors ; animal models ; Animals ; beta-galactosidase ; beta-glucosidase ; beta-Glucosidase - antagonists & inhibitors ; Bifidobacterium bifidum ; Biological and medical sciences ; blood glucose ; Blood Glucose - metabolism ; Chemistry ; Chemistry and Materials Science ; Diabetes Mellitus, Type 2 - therapy ; dietary supplements ; digestive system ; DNA, Bacterial - isolation & purification ; drugs ; Enzyme Inhibitors - pharmacology ; Escherichia coli ; feces ; Feces - microbiology ; Feeding. Feeding behavior ; functional foods ; Fundamental and applied biological sciences. Psychology ; glucose ; Glycoside Hydrolase Inhibitors - pharmacology ; Humans ; Hypoglycemic Agents - pharmacology ; Infant ; Intestines - enzymology ; Intestines - microbiology ; Lactase - antagonists & inhibitors ; lactic acid bacteria ; Lactobacillus ; Lactobacillus - classification ; Lactobacillus - isolation & purification ; Lactobacillus plantarum ; noninsulin-dependent diabetes mellitus ; Nutrition ; Original Contribution ; Probiotics ; Rats ; Rats, Sprague-Dawley ; Salmonella typhimurium ; sequence analysis ; Sequence Analysis, DNA ; starch ; Sucrase - antagonists & inhibitors ; sucrose alpha-glucosidase ; Vertebrates: anatomy and physiology, studies on body, several organs or systems]]></subject><ispartof>European journal of nutrition, 2014-10, Vol.53 (7), p.1465-1474</ispartof><rights>Springer-Verlag Berlin Heidelberg 2014</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c529t-f9ab6711ebac04f8a511f80d158cc01ae9ff20f657bd5ba33112d0781c861f533</citedby><cites>FETCH-LOGICAL-c529t-f9ab6711ebac04f8a511f80d158cc01ae9ff20f657bd5ba33112d0781c861f533</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00394-013-0649-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00394-013-0649-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&amp;idt=28887321$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24414142$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Panwar, Harsh</creatorcontrib><creatorcontrib>Calderwood, Danielle</creatorcontrib><creatorcontrib>Grant, Irene R</creatorcontrib><creatorcontrib>Grover, Sunita</creatorcontrib><creatorcontrib>Green, Brian D</creatorcontrib><title>Lactobacillus strains isolated from infant faeces possess potent inhibitory activity against intestinal alpha- and beta-glucosidases suggesting anti-diabetic potential</title><title>European journal of nutrition</title><addtitle>Eur J Nutr</addtitle><addtitle>Eur J Nutr</addtitle><description>PURPOSE: Inhibitors of intestinal alpha-glucosidases are used therapeutically to treat type 2 diabetes mellitus. Bacteria such as Actinoplanes sp. naturally produce potent alpha-glucosidase inhibitor compounds, including the most widely available drug acarbose. It is not known whether lactic acid bacteria (LAB) colonising the human gut possess inhibitory potential against glucosidases. Hence, the study was undertaken to screen LABs having inherent alpha- and beta-glucosidase inhibitory potential. METHODS: This study isolated, screened, identified and extracted Lactobacillus strains (Lb1–15) from human infant faecal samples determining their inhibitory activity against intestinal maltase, sucrase, lactase and amylase. Lactobacillus reference strains (Ref1–7), a Gram positive control (Ctrl1) and two Gram negative controls (Ctrl2–3), were also analysed to compare activity. RESULTS: Faecal isolates were identified by DNA sequencing, with the majority identified as unique strains of Lactobacillus plantarum. Some strains (L. plantarum, L. fermentum, L. casei and L. rhamnosus) had potent and broad spectrum inhibitory activities (up to 89 %; p &lt; 0.001; 500 mg/ml wet weight) comparable to acarbose (up to 88 %; p &lt; 0.001; 30 mg/ml). Inhibitory activity was concentration-dependent and was freely available in the supernatant, and was not present in other bacterial genera (Bifidobacterium bifidum and Escherichia coli or Salmonella typhimurium). Interestingly, the potency and spectrum of inhibitory activity across strains of a single species (L. plantarum) differed substantially. Some Lactobacillus extracts had broader spectrum activities than acarbose, effectively inhibiting beta-glucosidase activity (lactase) as well as alpha-glucosidase activities (maltase, sucrase and amylase). Anti-diabetic potential was indicated by the fact that oral gavage with a L. rhamnosus extract (1 g/kg) was able to reduce glucose excursions (Area under curve; 22 %; p &lt; 0.05) in rats during a carbohydrate challenge (starch; 2 g/kg). CONCLUSION: These results definitively demonstrate that Lactobacillus strains present in the human gut have alpha- and beta-glucosidase inhibitory activities and can reduce blood glucose responses in vivo. Although the potential use of LAB such as Lactobacillus as a dietary supplement, medicinal food or biotherapeutic for diabetes is uncertain, such an approach might offer advantages over drug therapies in terms of broader spectrum activities and fewer unpleasant side effects. Further characterisation of this bioactivity is warranted, and chronic studies should be undertaken in appropriate animal models or diabetic subjects.</description><subject>acarbose</subject><subject>Acarbose - metabolism</subject><subject>Actinoplanes</subject><subject>adverse effects</subject><subject>alpha-glucosidase</subject><subject>alpha-Glucosidases - metabolism</subject><subject>Amylases - antagonists &amp; inhibitors</subject><subject>animal models</subject><subject>Animals</subject><subject>beta-galactosidase</subject><subject>beta-glucosidase</subject><subject>beta-Glucosidase - antagonists &amp; inhibitors</subject><subject>Bifidobacterium bifidum</subject><subject>Biological and medical sciences</subject><subject>blood glucose</subject><subject>Blood Glucose - metabolism</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Diabetes Mellitus, Type 2 - therapy</subject><subject>dietary supplements</subject><subject>digestive system</subject><subject>DNA, Bacterial - isolation &amp; purification</subject><subject>drugs</subject><subject>Enzyme Inhibitors - pharmacology</subject><subject>Escherichia coli</subject><subject>feces</subject><subject>Feces - microbiology</subject><subject>Feeding. Feeding behavior</subject><subject>functional foods</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>glucose</subject><subject>Glycoside Hydrolase Inhibitors - pharmacology</subject><subject>Humans</subject><subject>Hypoglycemic Agents - pharmacology</subject><subject>Infant</subject><subject>Intestines - enzymology</subject><subject>Intestines - microbiology</subject><subject>Lactase - antagonists &amp; inhibitors</subject><subject>lactic acid bacteria</subject><subject>Lactobacillus</subject><subject>Lactobacillus - classification</subject><subject>Lactobacillus - isolation &amp; purification</subject><subject>Lactobacillus plantarum</subject><subject>noninsulin-dependent diabetes mellitus</subject><subject>Nutrition</subject><subject>Original Contribution</subject><subject>Probiotics</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>Salmonella typhimurium</subject><subject>sequence analysis</subject><subject>Sequence Analysis, DNA</subject><subject>starch</subject><subject>Sucrase - antagonists &amp; inhibitors</subject><subject>sucrose alpha-glucosidase</subject><subject>Vertebrates: anatomy and physiology, studies on body, several organs or systems</subject><issn>1436-6207</issn><issn>1436-6215</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNqFksFu1DAQhiMEoqXwAFzAEqrEJeCx48Q5oooC0kocoOdo4tipK2-y2A5Sn4jXZNIsBXEA-TCW55t_xv5dFM-BvwHOm7eJc9lWJQdZ8rpqy_ZBcQqVrMtagHp4v-fNSfEkpRvOuZA1PC5ORFUBLXFa_NihyXOPxoewJJZyRD8l5tMcMNuBuTjvmZ8cTpk5tMYmdphTsmmN2dKpn6597_McbxlJ-e8-02ZcVdZctin7CQPDcLjGkuE0sN5mLMewmDn5AUmLpWUc78CRgOzLwSNB3hx7eAxPi0cOQ7LPjvGsuLp8__XiY7n7_OHTxbtdaZRoc-la7OsGwNKNeOU0KgCn-QBKG8MBbeuc4K5WTT-oHqUEEANvNBhdg1NSnhWvN91DnL8tNFO398nYEHCy85I6qEFD1baS_x9VdQ1cc7mqvvoLvZmXSM9yR1VKNVIIomCjTKQnjtZ1h-j3GG874N1qeLcZ3pHh3Wp411LNi6Py0u_tcF_xy2ECzo8AJoPBRZyMT785rTU1B-LExiVKTaONf4z4j-4vtyKHc4djJOGrL4KDoq-midbyJ0v4z4Y</recordid><startdate>20141001</startdate><enddate>20141001</enddate><creator>Panwar, Harsh</creator><creator>Calderwood, Danielle</creator><creator>Grant, Irene R</creator><creator>Grover, Sunita</creator><creator>Green, Brian D</creator><general>Springer-Verlag</general><general>Springer Berlin Heidelberg</general><general>Springer</general><general>Springer Nature B.V</general><scope>FBQ</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>3V.</scope><scope>7QP</scope><scope>7RQ</scope><scope>7RV</scope><scope>7TS</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8C1</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>K9-</scope><scope>K9.</scope><scope>KB0</scope><scope>M0R</scope><scope>M0S</scope><scope>M1P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>Q9U</scope><scope>7X8</scope><scope>7QL</scope><scope>C1K</scope></search><sort><creationdate>20141001</creationdate><title>Lactobacillus strains isolated from infant faeces possess potent inhibitory activity against intestinal alpha- and beta-glucosidases suggesting anti-diabetic potential</title><author>Panwar, Harsh ; Calderwood, Danielle ; Grant, Irene R ; Grover, Sunita ; Green, Brian D</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c529t-f9ab6711ebac04f8a511f80d158cc01ae9ff20f657bd5ba33112d0781c861f533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>acarbose</topic><topic>Acarbose - metabolism</topic><topic>Actinoplanes</topic><topic>adverse effects</topic><topic>alpha-glucosidase</topic><topic>alpha-Glucosidases - metabolism</topic><topic>Amylases - antagonists &amp; inhibitors</topic><topic>animal models</topic><topic>Animals</topic><topic>beta-galactosidase</topic><topic>beta-glucosidase</topic><topic>beta-Glucosidase - antagonists &amp; inhibitors</topic><topic>Bifidobacterium bifidum</topic><topic>Biological and medical sciences</topic><topic>blood glucose</topic><topic>Blood Glucose - metabolism</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Diabetes Mellitus, Type 2 - therapy</topic><topic>dietary supplements</topic><topic>digestive system</topic><topic>DNA, Bacterial - isolation &amp; purification</topic><topic>drugs</topic><topic>Enzyme Inhibitors - pharmacology</topic><topic>Escherichia coli</topic><topic>feces</topic><topic>Feces - microbiology</topic><topic>Feeding. Feeding behavior</topic><topic>functional foods</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>glucose</topic><topic>Glycoside Hydrolase Inhibitors - pharmacology</topic><topic>Humans</topic><topic>Hypoglycemic Agents - pharmacology</topic><topic>Infant</topic><topic>Intestines - enzymology</topic><topic>Intestines - microbiology</topic><topic>Lactase - antagonists &amp; inhibitors</topic><topic>lactic acid bacteria</topic><topic>Lactobacillus</topic><topic>Lactobacillus - classification</topic><topic>Lactobacillus - isolation &amp; purification</topic><topic>Lactobacillus plantarum</topic><topic>noninsulin-dependent diabetes mellitus</topic><topic>Nutrition</topic><topic>Original Contribution</topic><topic>Probiotics</topic><topic>Rats</topic><topic>Rats, Sprague-Dawley</topic><topic>Salmonella typhimurium</topic><topic>sequence analysis</topic><topic>Sequence Analysis, DNA</topic><topic>starch</topic><topic>Sucrase - antagonists &amp; inhibitors</topic><topic>sucrose alpha-glucosidase</topic><topic>Vertebrates: anatomy and physiology, studies on body, several organs or systems</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Panwar, Harsh</creatorcontrib><creatorcontrib>Calderwood, Danielle</creatorcontrib><creatorcontrib>Grant, Irene R</creatorcontrib><creatorcontrib>Grover, Sunita</creatorcontrib><creatorcontrib>Green, Brian D</creatorcontrib><collection>AGRIS</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>ProQuest Central (Corporate)</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Career &amp; Technical Education Database</collection><collection>Nursing &amp; Allied Health Database</collection><collection>Physical Education Index</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Public Health Database</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>Consumer Health Database (Alumni Edition)</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>Nursing &amp; Allied Health Database (Alumni Edition)</collection><collection>Consumer Health Database</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Nursing &amp; Allied Health Premium</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>European journal of nutrition</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Panwar, Harsh</au><au>Calderwood, Danielle</au><au>Grant, Irene R</au><au>Grover, Sunita</au><au>Green, Brian D</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Lactobacillus strains isolated from infant faeces possess potent inhibitory activity against intestinal alpha- and beta-glucosidases suggesting anti-diabetic potential</atitle><jtitle>European journal of nutrition</jtitle><stitle>Eur J Nutr</stitle><addtitle>Eur J Nutr</addtitle><date>2014-10-01</date><risdate>2014</risdate><volume>53</volume><issue>7</issue><spage>1465</spage><epage>1474</epage><pages>1465-1474</pages><issn>1436-6207</issn><eissn>1436-6215</eissn><abstract>PURPOSE: Inhibitors of intestinal alpha-glucosidases are used therapeutically to treat type 2 diabetes mellitus. Bacteria such as Actinoplanes sp. naturally produce potent alpha-glucosidase inhibitor compounds, including the most widely available drug acarbose. It is not known whether lactic acid bacteria (LAB) colonising the human gut possess inhibitory potential against glucosidases. Hence, the study was undertaken to screen LABs having inherent alpha- and beta-glucosidase inhibitory potential. METHODS: This study isolated, screened, identified and extracted Lactobacillus strains (Lb1–15) from human infant faecal samples determining their inhibitory activity against intestinal maltase, sucrase, lactase and amylase. Lactobacillus reference strains (Ref1–7), a Gram positive control (Ctrl1) and two Gram negative controls (Ctrl2–3), were also analysed to compare activity. RESULTS: Faecal isolates were identified by DNA sequencing, with the majority identified as unique strains of Lactobacillus plantarum. Some strains (L. plantarum, L. fermentum, L. casei and L. rhamnosus) had potent and broad spectrum inhibitory activities (up to 89 %; p &lt; 0.001; 500 mg/ml wet weight) comparable to acarbose (up to 88 %; p &lt; 0.001; 30 mg/ml). Inhibitory activity was concentration-dependent and was freely available in the supernatant, and was not present in other bacterial genera (Bifidobacterium bifidum and Escherichia coli or Salmonella typhimurium). Interestingly, the potency and spectrum of inhibitory activity across strains of a single species (L. plantarum) differed substantially. Some Lactobacillus extracts had broader spectrum activities than acarbose, effectively inhibiting beta-glucosidase activity (lactase) as well as alpha-glucosidase activities (maltase, sucrase and amylase). Anti-diabetic potential was indicated by the fact that oral gavage with a L. rhamnosus extract (1 g/kg) was able to reduce glucose excursions (Area under curve; 22 %; p &lt; 0.05) in rats during a carbohydrate challenge (starch; 2 g/kg). CONCLUSION: These results definitively demonstrate that Lactobacillus strains present in the human gut have alpha- and beta-glucosidase inhibitory activities and can reduce blood glucose responses in vivo. Although the potential use of LAB such as Lactobacillus as a dietary supplement, medicinal food or biotherapeutic for diabetes is uncertain, such an approach might offer advantages over drug therapies in terms of broader spectrum activities and fewer unpleasant side effects. Further characterisation of this bioactivity is warranted, and chronic studies should be undertaken in appropriate animal models or diabetic subjects.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer-Verlag</pub><pmid>24414142</pmid><doi>10.1007/s00394-013-0649-9</doi><tpages>10</tpages></addata></record>
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subjects acarbose
Acarbose - metabolism
Actinoplanes
adverse effects
alpha-glucosidase
alpha-Glucosidases - metabolism
Amylases - antagonists & inhibitors
animal models
Animals
beta-galactosidase
beta-glucosidase
beta-Glucosidase - antagonists & inhibitors
Bifidobacterium bifidum
Biological and medical sciences
blood glucose
Blood Glucose - metabolism
Chemistry
Chemistry and Materials Science
Diabetes Mellitus, Type 2 - therapy
dietary supplements
digestive system
DNA, Bacterial - isolation & purification
drugs
Enzyme Inhibitors - pharmacology
Escherichia coli
feces
Feces - microbiology
Feeding. Feeding behavior
functional foods
Fundamental and applied biological sciences. Psychology
glucose
Glycoside Hydrolase Inhibitors - pharmacology
Humans
Hypoglycemic Agents - pharmacology
Infant
Intestines - enzymology
Intestines - microbiology
Lactase - antagonists & inhibitors
lactic acid bacteria
Lactobacillus
Lactobacillus - classification
Lactobacillus - isolation & purification
Lactobacillus plantarum
noninsulin-dependent diabetes mellitus
Nutrition
Original Contribution
Probiotics
Rats
Rats, Sprague-Dawley
Salmonella typhimurium
sequence analysis
Sequence Analysis, DNA
starch
Sucrase - antagonists & inhibitors
sucrose alpha-glucosidase
Vertebrates: anatomy and physiology, studies on body, several organs or systems
title Lactobacillus strains isolated from infant faeces possess potent inhibitory activity against intestinal alpha- and beta-glucosidases suggesting anti-diabetic potential
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