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Characterize the effects of L. asaccharolyticus on autistic-like symptoms

ABSTRACT: Accumulating evidence has revealed a strong link between the gut microbial community and ASD symptoms mediated by the gut–brain axis; however, ASD-specific microbial markers and the underlying mechanisms for targeted interventions remain unclear. Based on our previous identification of Lawsonibacter asaccharolyticus loss as a candidate ASD marker, we performed bacterial intervention in the BTBR ASD mouse model (C57 mice as healthy controls). Bulk RNA-seq was conducted on brain cortex and colon sections. In vitro validation: SH-SY5Y neuronal cells were treated for 24 h with bacterial filtrate, its derivative metabolite oleoylethanolamide (OEA), or butyrate (BA); untreated cells served as controls. All samples were subsequently analyzed by bulk RNA-seq.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE324679 | GEO | 2026/04/10

REPOSITORIES: GEO

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			Action	DRS
		Other
	GSE324679_BTBR_counts.txt.gz	Txt
	GSE324679_cell_counts.txt.gz	Txt

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Project description:The expression of adipogenic genes is decreased in obesity and diabetes mellitus ; Samuel T. Nadler*, Jonathan P. Stoehr*, Kathryn L. Schueler*, Gene Tanimoto, Brian S. Yandell, and Alan D. Attie*,Â§ ; Departments of * Biochemistry, and Statistics and Horticulture, University of Wisconsin, Madison, WI, 53706; and Affymetrix, Inc., Santa Clara, CA 95051 ; Communicated by Neal L. First, University of Wisconsin, Madison, WI, July 13, 2000 (received for review April 3, 2000) ; Obesity is strongly correlated with type 2 diabetes mellitus, a common disorder of glucose and lipid metabolism. Although adipocytes are critical in obesity, their role in diabetes has only recently been appreciated. We conducted studies by using DNA microarrays to identify differences in gene expression in adipose tissue from lean, obese, and obese-diabetic mice. The expression level of over 11,000 transcripts was analyzed, and 214 transcripts showed significant differences between lean and obese mice. Surprisingly, the expression of genes normally associated with adipocyte differentiation were down-regulated in obesity. Not all obese individuals will become diabetic; many remain normoglycemic despite profound obesity. Understanding the transition to obesity with concomitant diabetes will provide important clues to the pathogenesis of type 2 diabetes. Therefore, we examined the levels of gene expression in adipose tissue from five groups of obese mice with varying degrees of hyperglycemia, and we identified 88 genes whose expression strongly correlated with diabetes severity. This group included many genes that are known to be involved in signal transduction and energy metabolism as well as genes not previously examined in the context of diabetes. Our data show that a decrease in expression of genes normally involved in adipogenesis is associated with obesity, and we further identify genes important for subsequent development of type 2 diabetes mellitus. Experiment Overall Design: For obesity study, lean samples include C57BL/6J lean, (C57BL/6J X BTBR) F1 and BTBR lean, obese sampples incluse C57BL/6J-ob/ob, (C57BL/6J X BTBR) F2-ob/ob and BTBR-ob/ob. All samples are subjected to Mu11K A and B arrays. Experiment Overall Design: For diabetes study, B6-ob/ob, (C57BL/6J X BTBR) F2-ob/ob low glucose, (C57BL/6J X BTBR) F2-ob/ob medium glucose, (C57BL/6J X BTBR) F2-ob/ob high glucose, and BTBR-ob/ob samples were analyzed for genes whose expression levels changes correlated with the plasma glucose levels in these mice. All samples are subjected to Mu11K A and B arrays.

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Characterize the effects of L. asaccharolyticus on autistic-like symptoms

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