human
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: Objective To highlight the contribution of the gut microbiota to the modulation of host metabolism by dietary inulin-type fructans ( ITF prebiotics ) in obese women . Methods A double blind , placebo controlled , intervention study was performed with 30 obese women treated with ITF prebiotics ( inulin/oligofructose 50/50 mix ; n=15 ) or placebo ( maltodextrin ; n=15 ) for 3 months ( 16 g/day ) .  Blood , faeces and urine sampling , oral glucose tolerance test , homeostasis model assessment and impedancemetry were performed before and after treatment . The gut microbial composition in faeces was analysed by phylogenetic microarray and qPCR analysis of 16S rDNA . Plasma and urine metabolic profiles were analysed by 1H-NMR spectroscopy . Results Treatment with ITF prebiotics , but not the placebo , led to an increase in Bifidobacterium and Faecalibacterium prausnitzii ; both bacteria negatively correlated with serum lipopolysaccharide levels .  ITF prebiotics also decreased Bacteroides intestinalis , Bacteroides vulgatus and Propionibacterium , an effect associated with a slight decrease in fat mass and with plasma lactate and phosphatidylcholine levels . No clear treatment clustering could be detected for gut microbial analysis or plasma and urine metabolomic profile analyses . However , ITF prebiotics led to subtle changes in the gut microbiota that may importantly impact on several key metabolites implicated in obesity and /or diabetes . Conclusions ITF prebiotics selectively changed the gut microbiota composition in obese women , leading to modest changes in host metabolism , as suggested by the correlation between some bacterial species and metabolic endotoxaemia or metabolomic signatures BACKGROUND According to previous studies , probiotic and prebiotic supplementation have desirable effects on glycemic parameters . Thus far , the effect of supplementation on the glycemic parameters and adipokines in non-alcoholic fatty liver disease ( NAFLD ) has not been assessed . Therefore , the aim of this study was to determine the effects of supplementation with probiotic and prebiotic on adiokines and glycemic parameters in the patients with NAFLD . METHODS In the present r and omized , double-blind , placebo-controlled trial , 89 patients with NAFLD were r and omly divided into three groups to receive one probiotic capsule + 16 g/d maltodextrin ( probiotic group ) or 16 g/d oligofructose powder + one placebo capsule ( prebiotic group ) , and one placebo capsule + 16 g/d maltodextrin ( control group ) for 12 weeks . All the subjects in the study were advised to follow the weight loss diet and physical activity recommendations during the intervention . Fasting blood sample s were taken at baseline and after the intervention to measure leptin , adiponectin , insulin , and fasting blood sugar . RESULTS At the end of the study , serum concentrations of leptin , insulin , and HOMA-IR decreased significantly in the probiotic and prebiotic groups compared with the control group . Despite the changes within the groups , serum concentrations of adiponectin did not change significantly between the three groups . Also , fasting blood sugar did not change between the groups , but decreased in the prebiotic group . Quantitative insulin-sensitivity check index ( QUICKI ) increased significantly in probiotic and prebiotic groups compared with the control group . CONCLUSION Probiotic and prebiotic supplementation along with lifestyle intervention has a favorable impact on glycemic parameters and leptin levels compared with lifestyle intervention alone Abstract Background and aims Freeze-dried powdered yacon ( FDY ) can be considered a prebiotic product due to its fructooligosaccharides ( FOS ) content . The effect of 9 weeks of daily intake of FDY containing 7.4 g of FOS on glucose , lipid metabolism and intestinal transit in a group of elderly people was investigated . Methods Seventy-two elderly ( mean age 67.11 ± 6.11 ) men and women were studied for 9 weeks in a double-blind , placebo-controlled experiment . They were r and omly assigned to the supplement group ( which received 7.4 g of FOS as FDY ) or the control group . At the beginning and end of the study , anthropometric measurements , blood sampling , clinical analyses and dietary intake were assessed . Results A daily intake of FDY containing 7.4 g of FOS for 9 weeks was associated with a mean decrease in serum glucose ( p = 0.013 ) , but supplementation did not reduce serum lipids in the study group . The administered dose did not adversely affect intestinal transit . It did not cause bloating , flatulence or intestinal discomfort . Conclusion Freeze-dried powdered yacon is a good source of FOS , and daily consumption can have a favourable effect on serum glucose in the elderly . It is also practical , easy and safe to use and store Background Fat infiltration of the liver , muscle and pancreas is associated with insulin resistance and risk of diabetes . Weight loss reduces ectopic fat deposition and risk of diabetes , but is difficult to sustain to due to compensatory increases in appetite . Fermentable carbohydrates have been shown to decrease appetite and food intake , and promote weight loss in overweight subjects . In animal studies , fermentable carbohydrate reduces ectopic fat independent of weight loss . We aim ed to investigate the effect of the fermentable carbohydrate inulin on weight maintenance , appetite and ectopic fat in subjects with prediabetes . Methods Forty-four subjects with prediabetes were r and omized to 18 weeks ’ inulin or cellulose supplementation .  During weeks 1–9 ( weight loss phase ) all subjects had four visits with a dietitian to guide them towards a 5 % weight loss . During weeks 10–18 ( weight maintenance phase ) subjects continued taking their assigned supplementation and were asked to maintain the weight they had lost but were offered no further support . All subjects attended study sessions at baseline , 9 and 18 weeks for measurement of weight ; assessment of adipose tissue and ectopic fat content by magnetic resonance imaging and magnetic resonance spectroscopy ; glucose , insulin and GLP-1 levels following a meal tolerance test ; and appetite by ad libitum meal test and visual analogue scales . Results Both groups lost approximately 5 % of their body weight by week nine ( −5.3 ± 0.1 % vs −4.3 ± 0.4 % , p = 0.13 , but the inulin group lost significantly more weight between 9 and 18 weeks ( −2.3 ± 0.5 % vs −0.6 ± 0.4 % , p = 0.012 ) . Subjects taking inulin had lower hepatic ( p = 0.02 ) and soleus muscle ( p < 0.05 ) fat content at 18 weeks compared to control even after controlling for weight loss and consumed less at the ad libitum meal test ( p = 0.027 ) . Fasting glucose significantly decreased at week nine only ( p = 0.005 ) , insulin concentrations did not change , and there was a significant increase in GLP-1 in the cellulose group at 9 and 18 weeks ( p < 0.03 , p < 0.00001 ) . Conclusion Inulin may have a two-pronged effect on the risk of diabetes by 1 ) promoting weight loss 2 ) reducing intrahepatocellular and intramyocellular lipid in people with prediabetes independent of weight loss . Trial registration Clinical trial number : NCT01841073 Purpose Inulin-type fructans are recognized as prebiotic dietary fibres and classified as non-digestible carbohydrates that do not contribute to glycaemia . The aim of the present studies was to investigate the glycaemic response ( GR ) and insulinaemic response ( IR ) to foods in which sucrose was partially replaced by inulin or oligofructose from chicory . Methods In a double-blind , r and omized , controlled cross-over design , 40–42 healthy adults consumed a yogurt drink containing oligofructose or fruit jelly containing inulin and the respective full-sugar variants .  Capillary blood glucose and insulin were measured in fasted participants and at 15 , 30 , 45 , 60 , 90 , and 120 min after starting to drink/eat . For each test food , the incremental area under the curve ( iAUC ) for glucose and insulin was calculated and the GR and IR determined . Results Consumption of a yogurt drink with oligofructose which was 20 % reduced in sugars significantly lowered the glycaemic response compared to the full-sugar reference ( iAUC120min 31.9 and 37.3 mmol/L/min , respectively ; p < 0.05 ) . A fruit jelly made with inulin and containing 30 % less sugars than the full-sugar variant likewise result ed in a significantly reduced blood glucose response ( iAUC120min 53.7 and 63.7 mmol/L/min , respectively ; p < 0.05 ) . In both studies , the postpr and ial insulin response was lowered in parallel ( p < 0.05 ) . The reduction of postpr and ial glycaemia was positively correlated to the proportion of sugars replaced by inulin-type fructans ( p < 0.001 ) . Conclusions In conclusion , the studies confirmed that substitution of glycaemic sugars by inulin or oligofructose from chicory may be an effective strategy to reduce the postpr and ial blood glucose response to foods To our knowledge , no reports are available indicating the favorable effects of synbiotic bread consumption on blood lipid profiles among patients with type 2 diabetes mellitus ( T2DM ) . This study was conducted to evaluate the effects of the daily consumption of synbiotic bread on blood lipid profiles of patients with T2DM . This r and omized double-blinded controlled clinical trial was performed with 78 diabetic patients , aged 35–70 years . After a 2-week run-in period , subjects were r and omly assigned to consume either synbiotic ( n = 26 ) , probiotic ( n = 26 ) or control bread ( n = 26 ) for 8 weeks . The synbiotic bread contained viable and heat-resistant probiotic Lactobacillus sporogenes ( 1 × 108 CFU ) and 0.07 g inulin ( HPX ) as prebiotic per 1 g. The probiotic bread contained L. sporogenes ( 1 × 108 CFU ) per 1 g. Patients were asked to consume the synbiotic , probiotic and control breads three times a day in a 40 g package for a total of 120 g/day . Biochemical measurements including blood lipid profiles were conducted before and after 8 weeks of intervention . Consumption of the synbiotic bread , compared to the probiotic and control breads , led to a significant decrease in serum TAG ( P = 0.005 ) , VLDL-C ( P = 0.005 ) , TC/HDL-C ( P = 0.002 ) and a significant increase in serum HDL-C levels ( P = 0.01 ) . No significant effect of synbiotic bread consumption on FPG , TC , LDL-C and non-HDL-C levels was seen compared to the probiotic and control breads ( P > 0.05 ) . Trial registry code : http://www.i rct .ir I RCT 201311215623N13 Short-chain fructooligosaccharides ( FOS ) are prebiotics , which escape digestion in the small intestine and are fermented by the colonic microflora into short-chain fatty acids . Recently , we found that the daily consumption of 20 g FOS decreased basal hepatic glucose production in healthy subjects without any effect on insulin-stimulated glucose metabolism . In this study , we evaluated the effects of the chronic ingestion of FOS on plasma lipid and glucose concentrations , hepatic glucose production and insulin resistance in type 2 diabetics . Type 2 diabetic volunteers ( n = 10 ; 6 men , 4 women ) received either 20 g/d FOS or sucrose for 4 wk in a double-blind crossover design . FOS did not modify fasting plasma glucose and insulin concentrations or basal hepatic glucose production . The plasma glucose response to a fixed exogenous insulin bolus did not differ at the end of the two periods . Erythrocyte insulin binding also did not differ . Serum triacylglycerol , total and HDL cholesterol , free fatty acid , apolipoproteins A1 and B and lipoprotein ( a ) concentrations were not modified by the chronic ingestion of FOS . We conclude that 4 wk of 20 g/d of FOS had no effect on glucose and lipid metabolism in type 2 diabetics BACKGROUND & AIMS The gut microbiota affects host lipid and glucose metabolism , satiety , and chronic low- grade inflammation to contribute to obesity and type 2 diabetes . Fermentation end products , in particular the short-chain fatty acid ( SCFA ) acetate , are believed to be involved in these processes . We investigated the long-term effects of supplementation with 
    Output:
    
agent
Moreover , subgroup analyses suggested that the effects of glycemic control were significantly influenced by the sex of the subjects and the type and the method of intake of ITF .
Conclusions Our analyses confirmed that these four main glycemic indicators were significantly reduced by ITF supplementation , particularly in the prediabetes and T2DM population .
Evidence supports that reasonable administration of ITF supplementation may have potential clinical value as an adjuvant therapy for prediabetes and T2DM management .
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: Objective To highlight the contribution of the gut microbiota to the modulation of host metabolism by dietary inulin-type fructans ( ITF prebiotics ) in obese women . Methods A double blind , placebo controlled , intervention study was performed with 30 obese women treated with ITF prebiotics ( inulin/oligofructose 50/50 mix ; n=15 ) or placebo ( maltodextrin ; n=15 ) for 3 months ( 16 g/day ) .  Blood , faeces and urine sampling , oral glucose tolerance test , homeostasis model assessment and impedancemetry were performed before and after treatment . The gut microbial composition in faeces was analysed by phylogenetic microarray and qPCR analysis of 16S rDNA . Plasma and urine metabolic profiles were analysed by 1H-NMR spectroscopy . Results Treatment with ITF prebiotics , but not the placebo , led to an increase in Bifidobacterium and Faecalibacterium prausnitzii ; both bacteria negatively correlated with serum lipopolysaccharide levels .  ITF prebiotics also decreased Bacteroides intestinalis , Bacteroides vulgatus and Propionibacterium , an effect associated with a slight decrease in fat mass and with plasma lactate and phosphatidylcholine levels . No clear treatment clustering could be detected for gut microbial analysis or plasma and urine metabolomic profile analyses . However , ITF prebiotics led to subtle changes in the gut microbiota that may importantly impact on several key metabolites implicated in obesity and /or diabetes . Conclusions ITF prebiotics selectively changed the gut microbiota composition in obese women , leading to modest changes in host metabolism , as suggested by the correlation between some bacterial species and metabolic endotoxaemia or metabolomic signatures BACKGROUND According to previous studies , probiotic and prebiotic supplementation have desirable effects on glycemic parameters . Thus far , the effect of supplementation on the glycemic parameters and adipokines in non-alcoholic fatty liver disease ( NAFLD ) has not been assessed . Therefore , the aim of this study was to determine the effects of supplementation with probiotic and prebiotic on adiokines and glycemic parameters in the patients with NAFLD . METHODS In the present r and omized , double-blind , placebo-controlled trial , 89 patients with NAFLD were r and omly divided into three groups to receive one probiotic capsule + 16 g/d maltodextrin ( probiotic group ) or 16 g/d oligofructose powder + one placebo capsule ( prebiotic group ) , and one placebo capsule + 16 g/d maltodextrin ( control group ) for 12 weeks . All the subjects in the study were advised to follow the weight loss diet and physical activity recommendations during the intervention . Fasting blood sample s were taken at baseline and after the intervention to measure leptin , adiponectin , insulin , and fasting blood sugar . RESULTS At the end of the study , serum concentrations of leptin , insulin , and HOMA-IR decreased significantly in the probiotic and prebiotic groups compared with the control group . Despite the changes within the groups , serum concentrations of adiponectin did not change significantly between the three groups . Also , fasting blood sugar did not change between the groups , but decreased in the prebiotic group . Quantitative insulin-sensitivity check index ( QUICKI ) increased significantly in probiotic and prebiotic groups compared with the control group . CONCLUSION Probiotic and prebiotic supplementation along with lifestyle intervention has a favorable impact on glycemic parameters and leptin levels compared with lifestyle intervention alone Abstract Background and aims Freeze-dried powdered yacon ( FDY ) can be considered a prebiotic product due to its fructooligosaccharides ( FOS ) content . The effect of 9 weeks of daily intake of FDY containing 7.4 g of FOS on glucose , lipid metabolism and intestinal transit in a group of elderly people was investigated . Methods Seventy-two elderly ( mean age 67.11 ± 6.11 ) men and women were studied for 9 weeks in a double-blind , placebo-controlled experiment . They were r and omly assigned to the supplement group ( which received 7.4 g of FOS as FDY ) or the control group . At the beginning and end of the study , anthropometric measurements , blood sampling , clinical analyses and dietary intake were assessed . Results A daily intake of FDY containing 7.4 g of FOS for 9 weeks was associated with a mean decrease in serum glucose ( p = 0.013 ) , but supplementation did not reduce serum lipids in the study group . The administered dose did not adversely affect intestinal transit . It did not cause bloating , flatulence or intestinal discomfort . Conclusion Freeze-dried powdered yacon is a good source of FOS , and daily consumption can have a favourable effect on serum glucose in the elderly . It is also practical , easy and safe to use and store Background Fat infiltration of the liver , muscle and pancreas is associated with insulin resistance and risk of diabetes . Weight loss reduces ectopic fat deposition and risk of diabetes , but is difficult to sustain to due to compensatory increases in appetite . Fermentable carbohydrates have been shown to decrease appetite and food intake , and promote weight loss in overweight subjects . In animal studies , fermentable carbohydrate reduces ectopic fat independent of weight loss . We aim ed to investigate the effect of the fermentable carbohydrate inulin on weight maintenance , appetite and ectopic fat in subjects with prediabetes . Methods Forty-four subjects with prediabetes were r and omized to 18 weeks ’ inulin or cellulose supplementation .  During weeks 1–9 ( weight loss phase ) all subjects had four visits with a dietitian to guide them towards a 5 % weight loss . During weeks 10–18 ( weight maintenance phase ) subjects continued taking their assigned supplementation and were asked to maintain the weight they had lost but were offered no further support . All subjects attended study sessions at baseline , 9 and 18 weeks for measurement of weight ; assessment of adipose tissue and ectopic fat content by magnetic resonance imaging and magnetic resonance spectroscopy ; glucose , insulin and GLP-1 levels following a meal tolerance test ; and appetite by ad libitum meal test and visual analogue scales . Results Both groups lost approximately 5 % of their body weight by week nine ( −5.3 ± 0.1 % vs −4.3 ± 0.4 % , p = 0.13 , but the inulin group lost significantly more weight between 9 and 18 weeks ( −2.3 ± 0.5 % vs −0.6 ± 0.4 % , p = 0.012 ) . Subjects taking inulin had lower hepatic ( p = 0.02 ) and soleus muscle ( p < 0.05 ) fat content at 18 weeks compared to control even after controlling for weight loss and consumed less at the ad libitum meal test ( p = 0.027 ) . Fasting glucose significantly decreased at week nine only ( p = 0.005 ) , insulin concentrations did not change , and there was a significant increase in GLP-1 in the cellulose group at 9 and 18 weeks ( p < 0.03 , p < 0.00001 ) . Conclusion Inulin may have a two-pronged effect on the risk of diabetes by 1 ) promoting weight loss 2 ) reducing intrahepatocellular and intramyocellular lipid in people with prediabetes independent of weight loss . Trial registration Clinical trial number : NCT01841073 Purpose Inulin-type fructans are recognized as prebiotic dietary fibres and classified as non-digestible carbohydrates that do not contribute to glycaemia . The aim of the present studies was to investigate the glycaemic response ( GR ) and insulinaemic response ( IR ) to foods in which sucrose was partially replaced by inulin or oligofructose from chicory . Methods In a double-blind , r and omized , controlled cross-over design , 40–42 healthy adults consumed a yogurt drink containing oligofructose or fruit jelly containing inulin and the respective full-sugar variants .  Capillary blood glucose and insulin were measured in fasted participants and at 15 , 30 , 45 , 60 , 90 , and 120 min after starting to drink/eat . For each test food , the incremental area under the curve ( iAUC ) for glucose and insulin was calculated and the GR and IR determined . Results Consumption of a yogurt drink with oligofructose which was 20 % reduced in sugars significantly lowered the glycaemic response compared to the full-sugar reference ( iAUC120min 31.9 and 37.3 mmol/L/min , respectively ; p < 0.05 ) . A fruit jelly made with inulin and containing 30 % less sugars than the full-sugar variant likewise result ed in a significantly reduced blood glucose response ( iAUC120min 53.7 and 63.7 mmol/L/min , respectively ; p < 0.05 ) . In both studies , the postpr and ial insulin response was lowered in parallel ( p < 0.05 ) . The reduction of postpr and ial glycaemia was positively correlated to the proportion of sugars replaced by inulin-type fructans ( p < 0.001 ) . Conclusions In conclusion , the studies confirmed that substitution of glycaemic sugars by inulin or oligofructose from chicory may be an effective strategy to reduce the postpr and ial blood glucose response to foods To our knowledge , no reports are available indicating the favorable effects of synbiotic bread consumption on blood lipid profiles among patients with type 2 diabetes mellitus ( T2DM ) . This study was conducted to evaluate the effects of the daily consumption of synbiotic bread on blood lipid profiles of patients with T2DM . This r and omized double-blinded controlled clinical trial was performed with 78 diabetic patients , aged 35–70 years . After a 2-week run-in period , subjects were r and omly assigned to consume either synbiotic ( n = 26 ) , probiotic ( n = 26 ) or control bread ( n = 26 ) for 8 weeks . The synbiotic bread contained viable and heat-resistant probiotic Lactobacillus sporogenes ( 1 × 108 CFU ) and 0.07 g inulin ( HPX ) as prebiotic per 1 g. The probiotic bread contained L. sporogenes ( 1 × 108 CFU ) per 1 g. Patients were asked to consume the synbiotic , probiotic and control breads three times a day in a 40 g package for a total of 120 g/day . Biochemical measurements including blood lipid profiles were conducted before and after 8 weeks of intervention . Consumption of the synbiotic bread , compared to the probiotic and control breads , led to a significant decrease in serum TAG ( P = 0.005 ) , VLDL-C ( P = 0.005 ) , TC/HDL-C ( P = 0.002 ) and a significant increase in serum HDL-C levels ( P = 0.01 ) . No significant effect of synbiotic bread consumption on FPG , TC , LDL-C and non-HDL-C levels was seen compared to the probiotic and control breads ( P > 0.05 ) . Trial registry code : http://www.i rct .ir I RCT 201311215623N13 Short-chain fructooligosaccharides ( FOS ) are prebiotics , which escape digestion in the small intestine and are fermented by the colonic microflora into short-chain fatty acids . Recently , we found that the daily consumption of 20 g FOS decreased basal hepatic glucose production in healthy subjects without any effect on insulin-stimulated glucose metabolism . In this study , we evaluated the effects of the chronic ingestion of FOS on plasma lipid and glucose concentrations , hepatic glucose production and insulin resistance in type 2 diabetics . Type 2 diabetic volunteers ( n = 10 ; 6 men , 4 women ) received either 20 g/d FOS or sucrose for 4 wk in a double-blind crossover design . FOS did not modify fasting plasma glucose and insulin concentrations or basal hepatic glucose production . The plasma glucose response to a fixed exogenous insulin bolus did not differ at the end of the two periods . Erythrocyte insulin binding also did not differ . Serum triacylglycerol , total and HDL cholesterol , free fatty acid , apolipoproteins A1 and B and lipoprotein ( a ) concentrations were not modified by the chronic ingestion of FOS . We conclude that 4 wk of 20 g/d of FOS had no effect on glucose and lipid metabolism in type 2 diabetics BACKGROUND & AIMS The gut microbiota affects host lipid and glucose metabolism , satiety , and chronic low- grade inflammation to contribute to obesity and type 2 diabetes . Fermentation end products , in particular the short-chain fatty acid ( SCFA ) acetate , are believed to be involved in these processes . We investigated the long-term effects of supplementation with 
    Output:
    