PMID- 38355687 OWN - NLM STAT- MEDLINE DCOM- 20240216 LR - 20240218 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 14 IP - 1 DP - 2024 Feb 14 TI - Potential Alzheimer's early biomarkers in a transgenic rat model and benefits of diazoxide/dibenzoylmethane co-treatment on spatial memory and AD-pathology. PG - 3730 LID - 10.1038/s41598-024-54156-z [doi] LID - 3730 AB - Alzheimer's disease (AD) is the major form of dementia prevalent in older adults and with a high incidence in females. Identification of early biomarkers is essential for preventive intervention to delay its progression. Furthermore, due to its multifactorial nature, a multi-target approach could be therapeutically beneficial. Our studies included 4- (pre-pathology) and 11-month (mild-pathology) TgF344-AD rats, a transgenic Alzheimer's model that exhibits age-dependent AD progression. We identified two potential early biomarker genes for AD, early growth response 2 (EGR2) and histone 1H2AA (HIST1H2AA), in the hippocampus of 4-month females. Out of 17,168 genes analyzed by RNA sequencing, expression of these two genes was significantly altered in 4-month TgF344-AD rats compared to wild-type littermates. We also evaluated co-treatment with diazoxide (DZ), a potassium channel activator, and dibenzoylmethane (DIB), which inhibits eIF2alpha-P activity, on TgF344-AD and wild-type rats. DZ/DIB-treatment mitigated spatial memory deficits and buildup of hippocampal Abeta plaques and tau PHF in 11-month TgF344-AD rats but had no effect on wild-type littermates. To our knowledge, this preclinical study is the first to report EGR2 and HIST1H2AA as potential AD biomarkers in females, and the benefits of DZ/DIB-treatment in AD. Evaluations across multiple AD-related models is warranted to corroborate our findings. CI - (c) 2024. The Author(s). FAU - Wallace, Charles H AU - Wallace CH AD - Department of Biological Sciences, Hunter College CUNY and Graduate Center, 695 Park Ave., New York, NY, USA. FAU - Oliveros, Giovanni AU - Oliveros G AD - Department of Biological Sciences, Hunter College CUNY and Graduate Center, 695 Park Ave., New York, NY, USA. FAU - Xie, Lei AU - Xie L AD - Department of Computer Sciences, Hunter College CUNY, New York, NY, USA. FAU - Serrano, Peter AU - Serrano P AD - Department of Psychology, Hunter College CUNY, New York, NY, USA. FAU - Rockwell, Patricia AU - Rockwell P AD - Department of Biological Sciences, Hunter College CUNY and Graduate Center, 695 Park Ave., New York, NY, USA. FAU - Figueiredo-Pereira, Maria AU - Figueiredo-Pereira M AD - Department of Biological Sciences, Hunter College CUNY and Graduate Center, 695 Park Ave., New York, NY, USA. pereira@genectr.hunter.cuny.edu. LA - eng GR - R01 AG057555/AG/NIA NIH HHS/United States GR - R25 GM060665/GM/NIGMS NIH HHS/United States GR - R25GM060665/GF/NIH HHS/United States PT - Journal Article DEP - 20240214 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - ANS7ME8OKC (dibenzoylmethane) RN - O5CB12L4FN (Diazoxide) RN - 0 (Biomarkers) RN - 0 (Amyloid beta-Peptides) RN - 0 (Chalcones) SB - IM MH - Female MH - Rats MH - Animals MH - *Alzheimer Disease/drug therapy/genetics/metabolism MH - Rats, Transgenic MH - Diazoxide/therapeutic use MH - Rats, Inbred F344 MH - Spatial Memory MH - Biomarkers MH - Disease Models, Animal MH - Amyloid beta-Peptides MH - *Chalcones PMC - PMC10867006 OTO - NOTNLM OT - Alzheimer's OT - Drug repurposing OT - EGR2 OT - HIST1H2AA OT - Polypharmacology OT - Potassium channel activator OT - eIF2alpha activator COIS- The authors declare no competing interests. EDAT- 2024/02/15 00:42 MHDA- 2024/02/16 06:43 PMCR- 2024/02/14 CRDT- 2024/02/14 23:48 PHST- 2023/10/16 00:00 [received] PHST- 2024/02/09 00:00 [accepted] PHST- 2024/02/16 06:43 [medline] PHST- 2024/02/15 00:42 [pubmed] PHST- 2024/02/14 23:48 [entrez] PHST- 2024/02/14 00:00 [pmc-release] AID - 10.1038/s41598-024-54156-z [pii] AID - 54156 [pii] AID - 10.1038/s41598-024-54156-z [doi] PST - epublish SO - Sci Rep. 2024 Feb 14;14(1):3730. doi: 10.1038/s41598-024-54156-z.