Neutrophil gelatinase-associated lipocalin (NGAL) is a 25-kDa protein that is secreted mostly by immune cells such as neutrophils, macrophages, and dendritic cells. Its production is stimulated in response to inflammation. The concentrations of NGAL can be measured in plasma, urine, and biological fluids such as peritoneal effluent. NGAL is known mainly as a biomarker of acute kidney injury and is released after tubular damage and during renal regeneration processes. NGAL is also elevated in chronic kidney disease and dialysis patients. It may play a role as a predictor of the progression of renal function decreases with complications and mortality due to kidney failure. NGAL is also useful in the diagnostic processes of cardiovascular diseases. It is highly expressed in injured heart tissue and atherosclerostic plaque; its serum concentrations correlate with the severity of heart failure and coronary artery disease. NGAL increases inflammatory states and its levels rise in arterial hypertension, obesity, diabetes, and metabolic complications such as insulin resistance, and is also involved in carcinogenesis. In this review, we present the current knowledge on NGAL and its involvement in different pathologies, especially its role in renal and cardiovascular diseases.
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http://dx.doi.org/10.3390/ijms241310470 | DOI Listing |
Alzheimers Dement
December 2024
Applied Medical Sciences, Misr University for Science and Technology, Cairo, Egypt.
Background: Gamma desynchronization is an early pathophysiological event in Alzheimer's disease with a disturbance in oscillation in the gamma frequency range 30-80 Hz. This disruption was found to be directly related to the disease progression and severity. Thus, the use of transcranial alternating current stimulation (tACS) possessed greater interest.
View Article and Find Full Text PDFBackground: Alzheimer's disease (AD) presents unique challenges in clinical trials involving small molecules. Multifaceted issues plague such trials, emphasizing susceptibility to fraud from clinical sites and "professional patients". The relative ease of simulating Alzheimer's diagnosis, coupled with inadequate oversight by Contract Research Organizations (CROs), creates fertile ground for deceptive practices.
View Article and Find Full Text PDFAlzheimer's disease pathophysiology is believed to involve various abnormalities, including those of amyloid beta (Ab) peptide and tau processing, inflammation, oxidative stress, and vascular risk factors. Aβ peptides exist in a dynamic continuum of conformational states from monomeric Aβ, to soluble progressively larger Aβ assemblies that include a range of low molecular weight oligomers to higher molecular weight protofibrils, and finally to insoluble fibrils (plaques). Various lines of evidence support the "amyloid hypothesis" that Aβ plays a central role in the pathogenesis of AD, and several immunotherapies have been developed to interact with this cascade in various different places which may reduce the number of soluble aggregates and insoluble Aβ fibrils deposited in the brain.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Khoo Teck Puat Hospital, Singapore, Singapore.
Background: Mobile health applications have the potential to enhance dementia care and promote well-being among older adults living independently. This systematic review aims to synthesise and evaluate the existing evidence on the effectiveness of mobile applications developed to improve or maintain cognitive function among older adults diagnosed with mild cognitive impairment (MCI) and dementia.
Method: A systematic search was conducted across major electronic databases, including PubMed, The Cochrane Library, Embase, and PsycInfo, to identify relevant studies published from 2012 to 2023.
Alzheimers Dement
December 2024
Nanjing University of Chinese Medicine, nanjing, jiangsu, China.
Background: To systematically analyze the current situation and application of caregiver empowerment assessment tools at home and abroad, to provide a reference for the future development of caregiver empowerment assessment tools and the assessment of caregiver empowerment level.
Method: According to the research method of scope review, the relevant literature from the establishment of the database to October 2023 was searched, and the references of the included literature were traced, and the relevant literature of the caregiver empowerment assessment tool was comprehensively collected.
Result: A total of 856 articles were retrieved.
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