Project description:The effects of the administration of maple syrup extract (MSX) on hepatic gene expression were investigated in mice fed high-fat diet.
Project description:The effects of the administration of maple syrup extract (MSXH) on hepatic gene expression were investigated in mice fed high-fat diet.
Project description:The effects of the administration of maple syrup extract (MSXH) on hepatic gene expression were investigated in mice fed high-fat diet.
Project description:The effects of the administration of maple syrup extract (MSXH) on hepatic gene expression were investigated in mice fed high-fat diet.
Project description:The effects of the administration of maple syrup extract (MSX) on hepatic gene expression were investigated in mice fed high-fat diet. Male C57BL/6J mice aged 3 weeks were purchased from Charles River Japan (Kanagawa, Japan) and housed in a room maintained at 23 ± 1°C and 49 ± 16% humidity with a 12-h light/dark cycle (light 08:00–20:00; dark 20:00–08:00). For 1 week acclimation period after purchase, all the mice were fed a low-fat diet (10 kcal% fat). Then, they were randomly divided into three different dietary groups: the first group with the food containing fat at 10 kcal% as low-fat diet, the second group with 45 kcal% as high-fat diet, and the third with HFD plus 0.06% MSX. The mice were fed ad libitum for 8 weeks.
Project description:Rats fed a 20%-maple syrup diet (maple syrup group) for 11 days showed significantly lower values of the hepatic function markers than those fed a 20%-sugar mix syrup diet (control) likewise. One reasons was suggested by DNA microarray analysis which revealed that the expression of genes for enzymes of ammonia production were down-regulated in the liver of maple syrup group. Rats were quarantined and conditioned by administration of the authentic AIN93G diet for 4 days. Rats had free access to the diet and drinking water during this preliminary feeding. For feeding tests, they were dichotomized (n = 7 and 8) for maple syrup and sugar mix syrup group, respectively, and then fed for 11 days on either the AIN93G diet containing 20% maple syrup or on the 20% sugar mix syrup with a similar sugar composition; the amount of maple syrup or the sugar mix syrup was arranged. Rats in both diet groups were fasted for 16 hours, prior to being anesthetically sacrificed for dissection.
Project description:Rats fed a 20%-maple syrup diet (maple syrup group) for 11 days showed significantly lower values of the hepatic function markers than those fed a 20%-sugar mix syrup diet (control) likewise. One reasons was suggested by DNA microarray analysis which revealed that the expression of genes for enzymes of ammonia production were down-regulated in the liver of maple syrup group.
Project description:A recent study showed that 54% of type 2 diabetes (T2D) patients have nonalcoholic fatty liver disease, which is a risk factor for aggravation diabetic symptoms. Previous studies suggested components in maple syrup alleviated liver injury and found polyphenols as food components to improve the symptoms and complications of diabetes. Therefore, we hypothesized that a polyphenol fraction in maple syrup improves the symptoms and complications of diabetes. To address the hypothesis, we investigated the effects of a polyphenol-rich maple syrup extract (MSE) on a T2D model mice. KK-Ay mice were fed a normal or 0.1% MSE-supplemented diet for 43 days. The results showed that the levels of serum alanine aminotransferase and aspartate aminotransferase were significantly reduced in mice that ingested MSE. Hepatic genes related to lipogenesis and lipolysis were down- and upregulated, respectively, in mice that ingested MSE. These results suggest that MSE intake alleviates liver injury and suppresses lipid accumulation in the livers of T2D mice.
Project description:Some polyphenols are known to improve the symptoms of diabetes. In the present study, we investigated the effects of a polyphenol-rich extract of maple syrup (MSx) on a diabetic mouse model. KK-Ay mice were fed a normal or 0.05% MSx-supplemented diet for 42 days. Body weight, food intake, serum biochemical parameters, and fecal total bile acid were measured. Gene expression of liver and epididymal white adipose tissue (WAT) and cecal microbiota were analyzed. Data were analyzed with an unpaired two-tailed Student’s t test or Welch’s t test according to the results of the F test. Serum low-density lipoprotein cholesterol levels were significantly reduced in mice that consumed MSx. Hepatic genes related to fatty acid degradation and cholesterol catabolism were upregulated in mice that consumed MSx. In contrast, the expression of genes related to lipid metabolism in WAT was unaffected by the intake of MSx. There were no significant differences between the two groups in terms of total bile acid level in the feces and the relative abundance of bacteria in the cecum. Our results primarily indicate that MSx can help alleviate one of the symptoms of dyslipidemia.
Project description:Some polyphenols are known to improve the symptoms of diabetes. In the present study, we investigated the effects of a polyphenol-rich extract of maple syrup (MSx) on a diabetic mouse model. KK-Ay mice were fed a normal or 0.05% MSx-supplemented diet for 42 days. Body weight, food intake, serum biochemical parameters, and fecal total bile acid were measured. Gene expression of liver and epididymal white adipose tissue (WAT) and cecal microbiota were analyzed. Data were analyzed with an unpaired two-tailed Student’s t test or Welch’s t test according to the results of the F test. Serum low-density lipoprotein cholesterol levels were significantly reduced in mice that consumed MSx. Hepatic genes related to fatty acid degradation and cholesterol catabolism were upregulated in mice that consumed MSx. In contrast, the expression of genes related to lipid metabolism in WAT was unaffected by the intake of MSx. There were no significant differences between the two groups in terms of total bile acid level in the feces and the relative abundance of bacteria in the cecum. Our results primarily indicate that MSx can help alleviate one of the symptoms of dyslipidemia.