Alzheimer’s disease (AD) is a progressive neurodegenerative disorder characterized by amyloid-β (Aβ) deposition, tau pathology, synaptic dysfunction, neuroinflammation, and metabolic impairment. Increasing evidence suggests that bile acids, traditionally recognized for their roles in lipid digestion and hepatic metabolism, act as endocrine signaling molecules that influence central nervous system (CNS) homeostasis. Through ent...

Asthma is a heterogeneous chronic inflammatory airway disease characterized by persistent inflammation, dysregulated immune signaling, and progressive airway remodeling. It has been shown that asthma pathogenesis involves multiple signaling pathways. It has been illustrated that the mitogen-activated protein kinase/extracellular signal-regulated kinase 1/2 (MAPK/ERK1/2) cascade, which emerges as a central regulator linking imm...

Asthma is a clinically and biologically heterogeneous disease for which current anti-inflammatory therapies, including inhaled corticosteroids, remain insufficient for many patients. Therefore, repurposing other FDA-approved drugs, such as phosphodiesterase (PDE) inhibitors, may be beneficial in the management of asthma. PDEs are central regulators of cyclic nucleotide signaling, modulating airway smooth-muscle tone, mucocilia...

The brain undergoes profound molecular and structural changes during the aging process, resulting in the development of neurodegeneration, cognitive impairment, and increased vulnerability to chronic diseases. At the cellular level, brain aging is characterized by oxidative damage, genomic instability, and chronic low-grade inflammation known as inflammaging. Central to this process is Sirtuin 1 (SIRT1), a NAD + -dependent cla...

Metformin is an anti-diabetic drug used in the management of type 2 diabetes (T2D). Metformin has different pleiotropic effects, such as anti-inflammatory, antioxidant, antithrombotic, and vasculoprotective. Metformin has neuroprotective effects against neurodegenerative diseases and ischemic stroke. Conversely, metformin may exacerbate the pathogenesis of ischemic stroke. This controversial point may be related to the impact...

Parkinson's disease (PD) is a neurodegenerative disease characterized by progressive motor and non-motor symptoms. PD neuropathology is due to the progressive deposition of mutant alpha-synuclein (α-Syn) in the dopaminergic neurons of the substantia nigra pars compacta (SNpc). This effect initiates oxidative stress, mitochondrial dysfunction, inflammation, and apoptosis of the dopaminergic neurons in the SNpc. PD neuropatholog...

Tirzepatide (TRZ) is a dual agonist of glucagon-like peptide 1 (GLP-1) and gastric inhibitory polypeptide (GIP) receptors that were recently approved for the treatment of type 2 diabetes (T2D) and obesity. Of note is that T2D and obesity, by inducing peripheral low-grade inflammation and oxidative stress, provoke the development of central neuroinflammation and oxidative stress. Together, T2D and obesity are regarded as potent...

Alzheimer’s disease (AD) remains one of the most debilitating neurodegenerative disorders, with its pathological hallmark being progressive cognitive decline and memory loss. Recent research has illuminated the crucial role of the brain-derived neurotrophic factor (BDNF) in the central nervous system (CNS), highlighting its impact on neurogenesis, synaptic plasticity, and neuronal survival. Dysregulation of the BDNF signaling...

Alzheimer’s disease (AD)is an age-related neurodegenerative disease characterized by memory decline and cognitive impairment .AD is common in people aged > 65 years, though most of AD cases are sporadic, which accounts for 95%, and 1–5% of AD is caused by familial causes . The causes of AD are aging, environmental toxins, and cardiometabolic factors that induce the degeneration of cholinergic neurons. It has been shown that th...