PMID- 37698834 OWN - NLM STAT- MEDLINE DCOM- 20240227 LR - 20240227 IS - 1559-1182 (Electronic) IS - 0893-7648 (Linking) VI - 61 IP - 3 DP - 2024 Mar TI - Screening for Differentially Expressed Memory Genes on a Diabetes Model Induced by High-Sugar Diet in Drosophila melanogaster: Potential Markers for Memory Deficits. PG - 1225-1236 LID - 10.1007/s12035-023-03598-z [doi] AB - Type 2 diabetes mellitus (T2DM) has been shown to affect a series of cognitive processes including memory, increasing the risk for dementia, particularly Alzheimer's disease (AD). Although increasing evidence has supported that both diseases share common features, the pathophysiological mechanisms connecting these two disorders remain to be fully elucidated. Herein, we used Drosophila melanogaster fed on a high-sugar diet (HSD) to mimic T2DM, and investigate its effects on memory as well as identify potential molecular players associated with the memory deficits induced by HSD. Flies hatched from and reared on HSD for 7 days had a substantial decrease in short-term memory (STM). The screening for memory-related genes using transcriptome data revealed that HSD altered the expression of 33% of memory genes in relation to the control. Among the differentially expressed genes (DEGs) with a fold change (FC) higher than two, we found five genes, related to synapse and memory trace formation, that could be considered strong candidates to underlie the STM deficits in HSD flies: Abl tyrosine kinase (Abl), bruchpilot (Brp), minibrain (Mnb), shaker (Sh), and gilgamesh (Gish). We also analyzed genes from the dopamine system, one of the most relevant signaling pathways for olfactory memory. Interestingly, the flies fed on HSD presented a decreased expression of the Tyrosine hydroxylase (Ple) and Dopa decarboxylase (Ddc) genes, signals of a possible dopamine deficiency. In this work, we present promising biomarkers to investigate molecular networks shared between T2DM and AD. CI - (c) 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature. FAU - Loreto, Julia Sepel AU - Loreto JS AD - Centro de Ciencias Naturais E Exatas, Programa de Pos-Graduacao Em Bioquimica Toxicologica, Universidade Federal de Santa Maria, Avenida Roraima, Santa Maria, RS, 1000, 97105-900, Brazil. FAU - Ferreira, Sabrina Antunes AU - Ferreira SA AD - Centro de Ciencias Naturais E Exatas, Programa de Pos-Graduacao Em Bioquimica Toxicologica, Universidade Federal de Santa Maria, Avenida Roraima, Santa Maria, RS, 1000, 97105-900, Brazil. FAU - de Almeida, Pamela AU - de Almeida P AD - Centro de Ciencias Naturais E Exatas, Programa de Pos-Graduacao Em Bioquimica Toxicologica, Universidade Federal de Santa Maria, Avenida Roraima, Santa Maria, RS, 1000, 97105-900, Brazil. FAU - da Rocha, Joao Batista Teixeira AU - da Rocha JBT AD - Centro de Ciencias Naturais E Exatas, Programa de Pos-Graduacao Em Bioquimica Toxicologica, Universidade Federal de Santa Maria, Avenida Roraima, Santa Maria, RS, 1000, 97105-900, Brazil. FAU - Barbosa, Nilda Vargas AU - Barbosa NV AUID- ORCID: 0000-0002-3661-4253 AD - Centro de Ciencias Naturais E Exatas, Programa de Pos-Graduacao Em Bioquimica Toxicologica, Universidade Federal de Santa Maria, Avenida Roraima, Santa Maria, RS, 1000, 97105-900, Brazil. nvbarbosa@yahoo.com.br. LA - eng GR - 306919/2020-6/Conselho Nacional de Desenvolvimento Cientifico e Tecnologico/ GR - 88887.654237/2021-00/Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior/ PT - Journal Article DEP - 20230912 PL - United States TA - Mol Neurobiol JT - Molecular neurobiology JID - 8900963 RN - VTD58H1Z2X (Dopamine) RN - 0 (Sugars) SB - IM MH - Animals MH - Drosophila melanogaster/metabolism MH - *Diabetes Mellitus, Type 2 MH - Dopamine/metabolism MH - Memory Disorders/genetics MH - *Alzheimer Disease MH - Diet MH - Sugars/metabolism/pharmacology OTO - NOTNLM OT - D. melanogaster OT - Diabetes OT - High-sugar diet OT - Memory OT - Synaptic plasticity EDAT- 2023/09/12 12:41 MHDA- 2024/02/27 06:44 CRDT- 2023/09/12 11:24 PHST- 2023/06/01 00:00 [received] PHST- 2023/08/18 00:00 [accepted] PHST- 2024/02/27 06:44 [medline] PHST- 2023/09/12 12:41 [pubmed] PHST- 2023/09/12 11:24 [entrez] AID - 10.1007/s12035-023-03598-z [pii] AID - 10.1007/s12035-023-03598-z [doi] PST - ppublish SO - Mol Neurobiol. 2024 Mar;61(3):1225-1236. doi: 10.1007/s12035-023-03598-z. Epub 2023 Sep 12.