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: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: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: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.
Project description:Knee osteoarthritis (KOA), as a degenerative multifactorial disease, affects the quality of life and mental health of patients, and also brings a huge socioeconomic burden. Treating synovitis have shown promise as anti-inflammatory therapeutics in mitigating OA symptoms and disease progression. Here, by analysing synovial single-cell sequencing (scRNA-seq) data from KOA, we found that synovial fibroblasts (FLS) in OA synovium showed a distinct pro-inflammatory phenotype. We collected synovial tissue from patients with clinical OA as well as from healthy donors, and histological examination was consistent with findings in scRNA-seq. Inspired by recent cross-tissue fibroblast lineage studies, we identified by sequencing that healthy FLS in synovial tissues share transcriptome-level similarities with dermal fibroblasts (DFb). Subsequently, we revealed the local as well as systemic distribution of intra-articular injected DFbs by constructing/extracting two types of rat fibroblasts (luciferase DFbs as well as GFP DFbs). The results demonstrate that DFbs can be locally retained in the synovium for up to three weeks following targeted engrafting on it. And intra-articular injection does not result in DFbs migration to vital organs or the occurrence of histological changes in these organs. A rat model of KOA was constructed by anterior cruciate ligament transection (ACLT) in order to study the therapeutic effect of DFbs on KOA. After injection, the rats showed improvement in painful gait. In addition, histological as well as imaging results showed reduced synovitis and improvement in articular cartilage. Finally we verified the protective effect of DFbs on cytokine-stimulated chondrocytes in a co-culture system.
Project description:Formaldehyde (HCHO) is the simplest form of aldehyde and it is naturally present in a wide range of resources. In spite of its cosmopolitan presence, formaldehyde can have deleterious health effects at higher concentrations like leukemia. However, most of the studies carried out so far have focused on the effect of formaldehyde exposure through inhalation and not much has been studied on the its exposure through food. In this context, the present study was carried out to investigate the effect of formaldehyde exposure through drinking water on the liver proteome of rat which would not only be helpful in assessing the impact of formaldehyde on health of organisms but also would be helpful in understanding the mechanism of detoxification.