Ontology highlight
ABSTRACT:
PROVIDER: PRJNA737588 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR14812881_1.fastq.gz | Fastqsanger.gz | |||
| SRR14812881_2.fastq.gz | Fastqsanger.gz | |||
| SRR14812882_1.fastq.gz | Fastqsanger.gz | |||
| SRR14812882_2.fastq.gz | Fastqsanger.gz | |||
| SRR14812883_1.fastq.gz | Fastqsanger.gz |
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Project description:Objective Improving mitochondrial function is a promising strategy for intervention in type 2 diabetes mellitus. This study investigated the preventive effects of sodium ferrous citrate (SFC) and 5-aminolevulinic acid phosphate (ALA) on several metabolic dysfunctions associated with obesity because they have been shown to alleviate abnormal glucose metabolism in humans. Methods Six-week-old male C57BL/6J mice were fed with a normal diet, a high-fat diet, or a high-fat diet supplemented with SFC and ALA for 15 weeks. Results The simultaneous supplementation of SFC + ALA to high-fat diet-fed mice prevented loss of muscle mass, improved muscle strength, and reduced obesity and insulin resistance. SFC + ALA prevented abnormalities in mitochondrial morphology and reverted the diet effect on the skeletal muscle transcriptome, including the expression of glucose uptake and mitochondrial oxidative phosphorylation-related genes. In addition, SFC + ALA prevented the decline in mitochondrial DNA copy number by enhancing mitochondrial DNA maintenance and antioxidant transcription activity, both of which are impaired in high-fat diet-fed mice during long-term fasting. Conclusions These findings suggest that SFC + ALA supplementation exerts its preventive effects in type 2 diabetes mellitus via improved skeletal muscle and mitochondrial health, further validating its application as a promising strategy for the prevention of obesity-induced metabolic disorders.
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Project description:Intermuscular adipose tissue (IMAT) accumulation within skeletal muscle is associated with cardiometabolic disease, yet its spatial organization and molecular drivers remain poorly characterized. To map IMAT expansion within the quadriceps muscle architecture, spatial transcriptomics was performed on tissue sections from diet-induced obese male C57BL/6J mice fed a 60% kcal high fat diet (HFD) or 10% kcal low fat diet (LFD) for 20 weeks. The 10x Genomics Visium platform was used to generate spatially resolved gene expression profiles, which were integrated with immunofluorescence staining for Perilipin (adipocyte marker) and Laminin (muscle fiber boundaries) to relate transcriptional signatures to tissue morphology. This dataset enables spatially resolved investigation of gene expression changes associated with IMAT expansion in the context of diet-induced obesity.
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Project description:Study designed to identify genes that are induced in both BAT and skeletal muscle during acute adaptive thermogenesis in mouse using gene expression microarray. Animal studies were performed under approved UCLA animal research protocols and according to guidelines established in the Guide for Care and Use of Laboratory Animals. C57BL/6J mice were maintained in 12-h light/dark conditions and fed a regular chow diet (Purina 50010, Lab Diet, USA). Cold exposure was performed as described. After euthanasia, tissues were collected and frozen until use. Total RNA was isolated from mouse tissues by extraction with TRIzol from either brown adipose tissue (BAT) or skeletal muscle (quadriceps) after exposure to cold (4 degrees C for 4 hours). The mice were of the C57BL/6J strain and were maintained in 12-h light/dark conditions and fed a laboratory chow diet that consisted of 4.5% fat, 50% carbohydrate by weight (Lab Diet, Purina 50010).
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Project description:The (C57BL/6J X C3H/HeJ)F2 intercross consists of 334 animals of both sexes. All are ApoE null and received a high fat Western diet from 8-24 weeks of age. Muscle from 319 F2 female and male mice (animals fed a high fat "Western" diet from 8-24 weeks of age.) derived from C57BL/6J and C3H/HeJ parental strains with both on ApoE null backgrounds. All samples were compared to a common pool created from equal portions of RNA from each of the samples. Keywords=Genetics of Gene Expression Keywords=C57BL/6J Keywords=C3H/HeJ
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Project description:The present study aimed to examine the effect of high-fat diet prior to pregnancy on the liver of mouse offspring. Female C57BL/6J mice were fed a normal chow (15.2% fat by energy) (CTR and CTR-PP groups) or a high-fat chow (31.2% fat by energy) (HFD and HFD-PP groups) for 3−4 weeks and then mated with male C57BL/6J mice fed normal chow. Some mothers continued on the same diet until pups reached 21 days of age (CTR and HFD), and others were fed the different chows from gestational day 0 (CTR-PP and HFD-PP) to determine the effects of a high-fat diet during the pre-pregnancy period in HFD-PP/CTR and HFD/CTR-PP comparisons.
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