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Total 471 results found since Jan 2013.

Nrf2 and Ferroptosis: A New Research Direction for Ischemic Stroke
Cell Mol Neurobiol. 2023 Sep 20. doi: 10.1007/s10571-023-01411-y. Online ahead of print.ABSTRACTIschemic stroke (IS) is one of the leading causes of death and morbidity worldwide. As a novel form of cell death, ferroptosis is an important mechanism of ischemic stroke. Nuclear factor E2-related factor 2 (Nrf2) is the primary regulator of cellular antioxidant response. In addition to alleviating ischemic stroke nerve damage by reducing oxidative stress, Nrf2 regulates genes associated with ferroptosis, suggesting that Nrf2 may inhibit ferroptosis after ischemic stroke. However, the specific pathway of Nrf2 on ferroptosis in ...
Source: Cellular and Molecular Neurobiology - September 20, 2023 Category: Cytology Authors: Xiaoman Deng Wenming Chu Hanrui Zhang Yongjun Peng Source Type: research

Association of Ferroptosis with Severity and Outcomes in Acute Ischemic Stroke Patients Undergoing Endovascular Thrombectomy: A Case-control Study
AbstractFerroptosis, an iron-dependent form of cell death, is characterized by intracellular accumulation of iron and reactive oxygen species-induced lipid peroxidation. Animal experiments have shown the important roles of ferroptosis in ischemic stroke, but the evidence in human stroke is insufficient. This prospective study evaluated the associations between plasma ferroptosis biomarkers at hyperacute stage and long-term outcomes in patients with acute ischemic stroke undergoing endovascular thrombectomy (EVT). The plasma samples were collected immediately before and after EVT (T1 and T2) and at 24  h (T3) for the 126 s...
Source: Molecular Neurobiology - September 7, 2023 Category: Neurology Source Type: research

Suberosin Alleviates Thiazolidinedione-Induced Cardiomyopathy in Diabetic Rats by Inhibiting Ferroptosis via Modulation of ACSL4-LPCAT3 and PI3K-AKT Signaling Pathways
In this study, we investigated the anti-ferroptosis effects of suberosin (SBR; a prenylated coumarin) in diabetic Sprague Dawley rats. Further, we assessed the effects of co-administration of SBR (30 and 90 mg/kg/day) with thiazolidinedione (TZ at 15 mg/kg) to mitigate TZ-induced cardiomyopathy in diabetic rats. Our results showed that cardiac output, stroke volume, left ventricle systolic and diastolic pressures were aggravated in diabetic rats treated with TZ alone after 4 weeks. TZ treatments induced ferroptosis as well as marked histoarchitecture disarrangements in rat cardiomyocytes. The study found that optimizing vo...
Source: Cardiovascular Toxicology - September 7, 2023 Category: Cardiology Authors: Shabnoor Iqbal Farhat Jabeen Ivan Kahwa Timothy Omara Source Type: research

Association of Ferroptosis with Severity and Outcomes in Acute Ischemic Stroke Patients Undergoing Endovascular Thrombectomy: A Case-control Study
AbstractFerroptosis, an iron-dependent form of cell death, is characterized by intracellular accumulation of iron and reactive oxygen species-induced lipid peroxidation. Animal experiments have shown the important roles of ferroptosis in ischemic stroke, but the evidence in human stroke is insufficient. This prospective study evaluated the associations between plasma ferroptosis biomarkers at hyperacute stage and long-term outcomes in patients with acute ischemic stroke undergoing endovascular thrombectomy (EVT). The plasma samples were collected immediately before and after EVT (T1 and T2) and at 24  h (T3) for the 126 s...
Source: Molecular Neurobiology - September 1, 2023 Category: Neurology Source Type: research

Did interstellar debris fall to the sea floor? Claim meets sea of doubt
In 2014, a rock from space blazed through the atmosphere and exploded off the coast of Papua New Guinea with such ferociousness that some researchers believe the object came from beyond the Solar System. Now, a team of researchers says it has recovered remnants of the meteor from the floor of the Pacific Ocean and claims that a preliminary analysis of their unusual composition points to an origin around another star. Only in the past few years have astronomers realized that interstellar objects sometimes whizz through the Solar System and might even hit Earth. Finding a lump of rock from another planetary system would...
Source: Science of Aging Knowledge Environment - August 30, 2023 Category: Geriatrics Source Type: research

Evaluating Preoperative Intravenous Iron and Erythropoietin Treatment and Outcomes in Cardiac Surgery Patients
CONCLUSIONS: Infection (P = 0.258), mortality rate (P = 0.440), and RBC utilization (P = 0.469) in the two groups of injection and non-injection were not significantly different.PMID:37645003 | PMC:PMC10461381 | DOI:10.5812/aapm-130899
Source: Atherosclerosis - August 30, 2023 Category: Cardiology Authors: Alireza Jahangirifard Azita Chegini Amirhossein Maghari Source Type: research

Detection of Ferroptosis in Models of Brain Diseases
Methods Mol Biol. 2023;2712:233-251. doi: 10.1007/978-1-0716-3433-2_21.ABSTRACTFerroptosis is a regulated form of non-apoptotic cell death driven by iron-dependent lipid peroxidation. In the past decade, ferroptosis has been reported to be involved in the pathological role in the central nervous system degenerative diseases (e.g., Alzheimer's disease, Huntington's disease, and Parkinson's disease), stroke, traumatic brain injury, and brain tumor. However, how to reliably detect and classify ferroptosis from other cell death in pathological conditions remains a great challenge, especially in primary brain cells and brain ti...
Source: Mol Biol Cell - August 14, 2023 Category: Molecular Biology Authors: Danmin Shen Fei Yang Qian Li Source Type: research

Enhancement of combustion effect leading to improved performance and exhaust emissions of an SI engine with ferrous oxide and graphite nanoparticles
Environ Sci Pollut Res Int. 2023 Aug 8. doi: 10.1007/s11356-023-28556-z. Online ahead of print.ABSTRACTThe present study was conducted to investigate the effectiveness of new, less toxic, less harmful, and nonmetallic graphite (G) and metallic iron oxide (Fe2O3) nanofuel additives by analyzing experimentally their consequences on exhaust emissions and performance of an air cooled, single cylinder, 4-stroke gasoline engine. Fe2O3 and graphite nanoparticles at 40, 80, and 120 mg/l of gasoline concentrations were mixed with gasoline by means of a magnetic stirrer. Brake power (BP), brake-specific fuel consumption (BSFC), torq...
Source: Environmental Science and Pollution Research International - August 8, 2023 Category: Environmental Health Authors: Yasir Hussain Siddiqui Muhammad Shakaib Adnan Rasheed Hafiz Muhammad Ali Syed Mohammad Rizwan Azeem Athar Husain Siddique Muhammad Shafiq Source Type: research

Cottonseed oil alleviates ischemic stroke injury by inhibiting ferroptosis
ConclusionCSO treatment can alleviate ischemic stroke injury via ferroptosis inhibition, which provides a new potential therapeutic mechanism for CSO neuroprotection against ischemic stroke.
Source: Brain and Behavior - July 22, 2023 Category: Neurology Authors: Miao Sun, Min Liu, Qingxiao Li, Xiaoying Zhang, Siyuan Liu, Huikai Yang, Le Yang, Jiahe Tian, Weidong Mi, Yulong Ma Tags: ORIGINAL ARTICLE Source Type: research

Haem Iron Intake Is Associated with Increased Major Adverse Cardiovascular Events, All-Cause Mortality, Congestive Cardiac Failure, and Coronary Revascularisation in Older Men: The Concord Health and Ageing in Men Project
ConclusionHigher haem iron intake was independently associated with increased risks of five-point MACE, four-point MACE excluding all-cause mortality, all-cause mortality, CCF, and coronary revascularisation in older men over 5 years.
Source: The Journal of Nutrition, Health and Aging - July 4, 2023 Category: Nutrition Source Type: research

Using Aspirin Every Day May Cause Anemia in Seniors
A new study suggests regular aspirin use in older adults may pose a serious risk of anemia, adding to existing research that challenges the long-established recommendation to use aspirin as a preventative therapy for dangerous cardiac events. The results come just a year after a national independent task force updated formal recommendations in April 2022 cautioning those over the age of 60 against beginning a daily aspirin regimen. For decades, aspirin has been used like a vitamin by a sizable portion of America’s aging population. Research as far back as the 1950s showed a daily low dose of the anti-inflammatory me...
Source: TIME: Health - June 21, 2023 Category: Consumer Health News Authors: Haley Weiss Tags: Uncategorized Aging healthscienceclimate Source Type: news