40 Hz light preserves synaptic plasticity and mitochondrial function in Alzheimer’s disease model DOI Creative Commons
Amir Barzegar Behrooz, Mohamad‐Reza Aghanoori, Maryam Nazari

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Ноя. 6, 2024

Alzheimer's disease (AD) is the most prevalent type of dementia. Its causes are not fully understood, but it now known that factors like mitochondrial dysfunction, oxidative stress, and compromised ion channels contribute to its onset progression. Flickering light therapy has shown promise in AD treatment, though mechanisms remain unclear. In this study, we used a rat model streptozotocin (STZ)-induced evaluate effects 40 Hz flickering therapy. Rats received intracerebroventricular (ICV) STZ injections, 7 days after, they were exposed for 15 min daily over seven days. Cognitive memory functions assessed using Morris water maze, novel object recognition, passive avoidance tests. STZ-induced rats exhibited cognitive decline, elevated reactive oxygen species, amyloid beta accumulation, decreased serotonin dopamine levels, impaired function. However, prevented these effects, preserving function synaptic plasticity. Additionally, restored metabolites normalized ATP-insensitive calcium-sensitive potassium (mitoBKCa) channel activity, which was otherwise downregulated rats. Our findings suggest could be promising treatment neurodegenerative disorders by

Язык: Английский

Alzheimer’s Disease and Epilepsy: Exploring Shared Pathways and Promising Biomarkers for Future Treatments DOI Open Access
Athanasios-Christos Kalyvas,

Maria Dimitriou,

Panagiotis Ioannidis

и другие.

Journal of Clinical Medicine, Год журнала: 2024, Номер 13(13), С. 3879 - 3879

Опубликована: Июль 1, 2024

Background: Alzheimer's disease (AD) and epilepsy represent two complex neurological disorders with distinct clinical manifestations, yet recent research has highlighted their intricate interplay. This review examines the association between AD epilepsy, particular emphasis on late-onset of unknown etiology, increasingly acknowledged as a prodrome AD. It delves into epidemiology, pathogenic mechanisms, features, diagnostic characteristics, treatment strategies, emerging biomarkers to provide comprehensive understanding this relationship. Methods: A literature search was conducted, identifying 128 relevant articles published 2018 2024. Results: Findings underscore bidirectional relationship indicating shared pathways that extend beyond traditional amyloid-beta Tau protein pathology. These encompass neuroinflammation, synaptic dysfunction, structural network alterations, well molecular mechanisms. Notably, epileptic activity in patients may exacerbate cognitive decline, necessitating prompt detection treatment. Novel biomarkers, such subclinical epileptiform detected via advanced electroencephalographic techniques, offer promise for early diagnosis targeted interventions. Furthermore, therapeutic approaches targeting mechanisms hold potential modification both epilepsy. Conclusions: highlights importance providing insights future directions. Clinical data methods are also reviewed, enabling clinicians implement more effective strategies.

Язык: Английский

Процитировано

5

Serotonin in Depression and Alzheimer’s Disease: Focus on SSRI’s Beneficial Effects DOI

Jihane Tahiri,

Maamoon Mian,

Fatima Aftan

и другие.

Ageing Research Reviews, Год журнала: 2024, Номер 101, С. 102537 - 102537

Опубликована: Окт. 9, 2024

Язык: Английский

Процитировано

5

Blood-derived mitochondrial DNA copy number is associated with Alzheimer disease, Alzheimer-related biomarkers and serum metabolites DOI Creative Commons
Tong Tong, Congcong Zhu, John J. Farrell

и другие.

Alzheimer s Research & Therapy, Год журнала: 2024, Номер 16(1)

Опубликована: Окт. 23, 2024

Blood-derived mitochondrial DNA copy number (mtDNA-CN) is a proxy measurement of function in the peripheral and central systems. Abnormal mtDNA-CN not only indicates impaired mtDNA replication transcription machinery but also dysregulated biological processes such as energy lipid metabolism. However, relationship between Alzheimer disease (AD) unclear. We performed two-sample Mendelian randomization (MR) using publicly available summary statistics from GWAS for AD to investigate causal AD. estimated whole-genome sequence data blood brain samples 13,799 individuals Alzheimer's Disease Sequencing Project. Linear Cox proportional hazards models adjusting age, sex, study phase were used assess association with The biomarkers serum metabolites was evaluated Neuroimaging Initiative linear regression. conducted mediation analysis test natural indirect effects change on risk through significantly associated metabolites. MR suggested decreased blood-derived increased (OR = 0.68; P 0.013). Survival showed that higher conversion mild cognitive impairment (HR 0.80; 0.002). identified significant associations FDG-PET (β 0.103; 0.022), amyloid-PET 0.117; 0.034), CSF amyloid-β (Aβ) 42/40 (β=-0.124; 0.017), t-Tau 0.128; 0.015), p-Tau 0.140; 0.008), plasma NFL 0.004) females. Several species, amino acids, biogenic amines mtDNA-CN. Causal analyses about third effect mediated by (P 0.009), this more females < 0.005). Our measured predictive including particularly Further, we illustrate possibly increases dysregulation metabolism inflammation.

Язык: Английский

Процитировано

4

Qiangji Decoction mitigates neuronal damage, synaptic and mitochondrial dysfunction in SAMP8 mice through the regulation of ROCK2/Drp1-mediated mitochondrial dynamics DOI

Bixuan Lai,

Dan Wu, Qiang Xiao

и другие.

Journal of Ethnopharmacology, Год журнала: 2025, Номер unknown, С. 119424 - 119424

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

The role and therapeutic potential of mitophagy in major depressive disorder DOI Creative Commons
Xiulin Shi,

Chenyue Liu,

Li Lin

и другие.

Frontiers in Pharmacology, Год журнала: 2025, Номер 16

Опубликована: Март 26, 2025

Major depressive disorder, also known as MDD, affects more than 264 million people globally, making it a prevalent and critical health challenge. Traditional treatments show limited efficacy in many patients. Therefore, exploring new treatment methods is particularly crucial. Mitophagy, regulatory process, can help understand treat MDD. This paper focuses on the molecular mechanisms of mitophagy, starting from proteins related pathways, its role The study explores associations between mitophagy neuroinflammation, oxidative stress, neurotransmitter synthesis, neuroplasticity MDD discusses progress clinical research In addition, article describes current pharmaceutical non-pharmaceutical interventions that regulate unravels potential challenges these therapeutic strategies settings. offers deeper insight into pathogenesis scientific basis for development strategies.

Язык: Английский

Процитировано

0

Biological Profile of Synthetic and Natural Indole Derivatives: Paving New Paths in Cancer Treatment DOI Creative Commons
Ana Margarida Janeiro, Carolina S. Marques

Drugs and Drug Candidates, Год журнала: 2024, Номер 3(3), С. 488 - 511

Опубликована: Июль 19, 2024

The indole scaffold is considered a privileged framework in the design and synthesis of several active pharmaceutical ingredients, particularly as promising anticancer agents. Its presence bioactive natural compounds has caught attention scientific community, which been committed to unveiling its biosynthetic pathways generating multiple derivatives with innovative synthetic routes. large variety structural enhances their use bioapplications pharmacological activities. In this review, reader will have easy access some examples antimicrobial, antidepressant, anti-inflammatory, antiviral, antimigraine, antiemetic activity. However, main topic review related cancer importance drugs. Two reasons why massive problem worldwide are attributed struggle develop target-specific drugs while avoiding drug resistance. Among countless targeting specific proteins involved tumorigenesis, prompting life quality treatment types, protein kinases, desoxyribonucleic acid topoisomerases, P-glycoprotein shown be targets when it comes development novel Furthermore, also studied regarding affinity other cancer. This aims highlight utility design, inspiring creation new that target address resistance challenges.

Язык: Английский

Процитировано

3

From Fundamentals to Innovation in Alzheimer’s Disease: Molecular Findings and Revolutionary Therapies DOI Open Access

Mădălina Georgeta Sighencea,

R. Popescu,

Simona Trifu

и другие.

International Journal of Molecular Sciences, Год журнала: 2024, Номер 25(22), С. 12311 - 12311

Опубликована: Ноя. 16, 2024

Alzheimer's disease (AD) is a global health concern and the leading cause of dementia in elderly. The prevalence this neurodegenerative condition projected to increase concomitantly with increased life expectancy, resulting significant economic burden. With very few FDA-approved disease-modifying drugs available for AD, there an urgent need develop new compounds capable impeding progression disease. Given unclear etiopathogenesis review emphasizes underlying mechanisms condition. It explores not only well-studied aspects, such as accumulation Aβ plaques neurofibrillary tangles, but also novel areas, including glymphatic lymphatic pathways, microbiota gut-brain axis, serotoninergic autophagy alterations, vascular dysfunction, metal hypothesis, olfactory pathway, oral health. Furthermore, potential molecular targets arising from all these have been reviewed, along promising approaches nanoparticle-based therapy, neural stem cell transplantation, vaccines, CRISPR-Cas9-mediated genome editing techniques. Taking into account overlap various mechanisms, individual combination therapies emerge future direction AD strategy.

Язык: Английский

Процитировано

1

The 40 Hz flickering light restores synaptic plasticity and mitochondrial phenotype in experimental model of Alzheimer’s disease DOI Open Access
Amir Barzegar Behrooz, Mohamad‐Reza Aghanoori, Fariba Khodagholi

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2024, Номер unknown

Опубликована: Май 15, 2024

Abstract Alzheimer’s disease (AD) is the most prevalent form of dementia and a public health priority. The causes AD are not completely understood. Pathogenetic factors including mitochondrial dysfunction, oxidative stress, reduced energy status, compromised ion channels contribute to onset progression disease. Flickering light therapy in experimental clinical has shown promising outcomes. However, mechanisms behind effect flickering at molecular cellular level yet been fully investigated. In this study, we established streptozotocin (STZ)-induced models by intracerebroventricular (ICV) injection STZ Wistar rats monitored their memory decline. Sham were either exposed or 40 Hz for 7 consecutive days after injection. Memory cognition-related behavioral analysis, pathological, electrophysiological, biochemical assessment brain tissue, function assays conducted treatment. Cognitive impairment, examined Morris water maze (MWM), novel object recognition (NOR), passive avoidance (PA) test, was observed STZ-induced treatment improved these behaviors. led significant accumulation reactive oxygen species (ROS) amyloid beta (Aβ), decreased serotonin dopamine levels, respiration. reversed all parameters group. synaptic plasticity severely affected, but prevented loss activity light-treated rats. Additionally, white elevated levels metabolites current possible opening calcium-sensitive potassium (mitoBK Ca ) channel which significantly downregulated rat neurons. restored neurons cognition animals; therefore, it can be strategy reduce progression.

Язык: Английский

Процитировано

0

40 Hz light preserves synaptic plasticity and mitochondrial function in Alzheimer’s disease model DOI Creative Commons
Amir Barzegar Behrooz, Mohamad‐Reza Aghanoori, Maryam Nazari

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Ноя. 6, 2024

Alzheimer's disease (AD) is the most prevalent type of dementia. Its causes are not fully understood, but it now known that factors like mitochondrial dysfunction, oxidative stress, and compromised ion channels contribute to its onset progression. Flickering light therapy has shown promise in AD treatment, though mechanisms remain unclear. In this study, we used a rat model streptozotocin (STZ)-induced evaluate effects 40 Hz flickering therapy. Rats received intracerebroventricular (ICV) STZ injections, 7 days after, they were exposed for 15 min daily over seven days. Cognitive memory functions assessed using Morris water maze, novel object recognition, passive avoidance tests. STZ-induced rats exhibited cognitive decline, elevated reactive oxygen species, amyloid beta accumulation, decreased serotonin dopamine levels, impaired function. However, prevented these effects, preserving function synaptic plasticity. Additionally, restored metabolites normalized ATP-insensitive calcium-sensitive potassium (mitoBKCa) channel activity, which was otherwise downregulated rats. Our findings suggest could be promising treatment neurodegenerative disorders by

Язык: Английский

Процитировано

0