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Saving Vanessa, part 1: A mystery rash, a stroke and an epic rescue
Vanessa’s rash first appeared on her arms and legs when she 3 or 4 months old. It was red and bumpy and went away when she was sick with a virus, which happened often. Then it would come back. The dermatology team she saw at Boston Children’s Hospital was puzzled.
“I was expecting they were going to think it was nothing, but they took it very seriously,” says Katherine Bell, one of Vanessa’s mothers. “They took a biopsy and very quickly realized they had no idea what it was.”
Vanessa’s case was even featured at a regional dermatology conference where doctors take up mystery patients. “A hundred to 150 der...
Source: Thrive, Children's Hospital Boston - July 25, 2017 Category: Pediatrics Authors: Nancy Fliesler Tags: Diseases & Conditions Our Patients’ Stories Dr. Carolyn Rogers Dr. Pui Lee Dr. Robert Sundel Dr. Scellig Stone Dr. Todd Lyons stroke Source Type: news
Deferoxamine Treatment Prevents Post-Stroke Vasoregression and Neurovascular Unit Remodeling Leading to Improved Functional Outcomes in Type 2 Male Diabetic Rats: Role of Endothelial Ferroptosis
This study aimed to determine the impact of iron chelation with deferoxamine (DFX) on (1) cerebral vascularization patterns and (2) functional outcomes after stroke in control and diabetic rats. After 8 weeks of type 2 diabetes induced by a combination of high-fat diet and low-dose streptozotocin, male control and diabetic animals were subjected to thromboembolic middle cerebral artery occlusion (MCAO) and randomized to vehicle, DFX, or tPA/DFX and followed for 14 days with behavioral tests. Vas cular indices (vascular volume and surface area), neurovascular remodeling (AQP4 polarity), and microglia activation were meas...
Source: Translational Stroke Research - August 31, 2020 Category: Neurology 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
Comparison of Arterial Ischemic and Hemorrhagic Pediatric Stroke in Etiology, Risk Factors, Clinical Manifestations, and Prognosis
Conclusions
Moyamoya disease/syndrome and arteriovenous malformation rapture are the most common cause of AIS and HS, respectively. Iron deficiency anemia was commonly found in childhood AIS. The time to diagnosis in both AIS and HS was delayed. The mortality rate in HS was higher than in AIS. Neurological deficits are seen in 70% of childhood AIS during the follow-up. One-third of the children in our study developed epilepsy, which generally responds to a single antiseizure medication. The recurrence rate of childhood stroke was low compared with adult stroke.
Source: Pediatric Emergency Care - September 1, 2022 Category: Emergency Medicine Tags: Original Articles Source Type: research
Iron chelators for acute stroke.
CONCLUSIONS: We identified two eligible RCTs for assessment. We could not demonstrate any benefit for the use of iron chelators in spontaneous intracerebral haemorrhage. The added value of iron-chelating therapy in people with ischaemic stroke or subarachnoid haemorrhage remains unknown.
PMID: 33236783 [PubMed - in process]
Source: Cochrane Database of Systematic Reviews - November 24, 2020 Category: General Medicine Authors: Van der Loo LE, Aquarius R, Teernstra O, Klijn K, Menovsky T, van Dijk JMC, Bartels R, Boogaarts HD Tags: Cochrane Database Syst Rev Source Type: research
Iron Measured in Nasal Exudate Samples as a New and Useful Biomarker in the Differential Diagnosis of Patients with Acute Stroke
Conclusions: Our findings suggest that iron levels in nasal exudate may be useful in the acute stage for the differential diagnosis between ischemic and hemorrhagic damage in acute stroke patients. They also open a potential field to study other biomarkers in nasal exudate in several neurological disorders. Clinical studies must be performed to confirm our results.Cerebrovasc Dis
Source: Cerebrovascular Diseases - November 20, 2020 Category: Neurology Source Type: research
Dysfunction of Iron Metabolism and Iron-Regulatory Proteins in the Rat Hippocampus After Heat Stroke
Heat stroke, the most serious type of heat illness, refers to the presence of hyperthermia (core temperature>40°C), accompanied by central nervous system dysfunction. The hippocampus is a particularly vulnerable region in the early stage of heat stroke. Increasing evidence suggests that dysregulation of brain iron metabolism is involved in many neurodegenerative diseases. However, whether heat stroke causes dysfunction of iron metabolism, as well as iron-regulatory proteins, in the hippocampus remains unknown. The present study was conducted to explore the effects on spatial learning and memory, as well as iron content, f...
Source: Shock - May 15, 2019 Category: Emergency Medicine Tags: Basic Science Aspects Source Type: research
Antioxidative neuroprotective role of iron-gallic acid coordination nanoparticles and PET/MR usage in an ischemia stroke model
Conclusions: Fe-GA CPNs exhibit an impressive antioxidative neuroprotective role in ischemia stroke, which might have the potential to be translated into clinical applications for improved treatment of patients with stroke. PET/MRI is effective and accurate method for ischemic evaluation.
Source: Journal of Nuclear Medicine - May 20, 2019 Category: Nuclear Medicine Authors: KANG, L., Jiang, D., NI, D., Ehlerding, E., Wang, R., Cai, W. Tags: Basic Science I (Neurosciences) Source Type: research
Ferroptosis —A Novel Mechanism With Multifaceted Actions on Stroke
As a neurological disease with high morbidity, disability, and mortality, the pathological mechanism underlying stroke involves complex processes such as neuroinflammation, oxidative stress, apoptosis, autophagy, and excitotoxicity; but the related research on these molecular mechanisms has not been effectively applied in clinical practice. As a form of iron-dependent regulated cell death, ferroptosis was first discovered in the pathological process of cancer, but recent studies have shown that ferroptosis is closely related to the onset and development of stroke. Therefore, a deeper understanding of the relationship betwe...
Source: Frontiers in Neurology - April 11, 2022 Category: Neurology 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
Iron nanoparticle contrast enhanced microwave imaging for emergent stroke: A pilot study
Publication date: Available online 1 November 2018Source: Journal of Clinical NeuroscienceAuthor(s): Joseph S. Hudson, Timothy K. Chung, Benjamin S. Prout, Yasunori Nagahama, Madhavan L. Raghavan, David M. HasanAbstractEmergent stroke is mostly evaluated using hospital based imaging. Quick imaging allows for rapid administration of IV thrombolysis and outcome improvement. Microwave imaging (MI) is an emerging portable imaging modality. Iron oxide nanoparticles are known to interact with microwave frequency electromagnetic radiation. In this manuscript, we provide proof of concept for a novel iron oxide nanoparticle enhance...
Source: Journal of Clinical Neuroscience - November 2, 2018 Category: Neuroscience Source Type: research
SIR: Stroke treatment training program improves outcomes
Interventional radiologists at Johns Hopkins University have developed an innovative...Read more on AuntMinnie.comRelated Reading:
MRI measurements of iron content show impact of stroke
CT matches MRI for late-window stroke evaluation
Machine learning can predict stroke treatment outcomes
Study reveals steep cost of delaying stroke treatment
MRI links lifestyle factors to stroke, dementia risk
Source: AuntMinnie.com Headlines - March 25, 2019 Category: Radiology Source Type: news
The role and therapeutic potential of heat shock proteins in haemorrhagic stroke.
Abstract
Heat shock proteins (HSPs) are induced after haemorrhagic stroke, which includes subarachnoid haemorrhage (SAH) and intracerebral haemorrhage (ICH). Most of these proteins function as neuroprotective molecules to protect cerebral neurons from haemorrhagic stroke and as markers to indicate cellular stress or damage. The most widely studied HSPs in SAH are HSP70, haeme oxygenase-1 (HO-1), HSP20 and HSP27. The subsequent pathophysiological changes following SAH can be divided into two stages: early brain injury and delayed cerebral ischaemia, both of which determine the outcome for patients. Because the mech...
Source: J Cell Mol Med - July 4, 2019 Category: Molecular Biology Authors: Shao A, Zhou Y, Yao Y, Zhang W, Zhang J, Deng Y Tags: J Cell Mol Med Source Type: research
Nuclear receptor coactivator 4-mediated ferritinophagy contributes to cerebral ischemia-induced ferroptosis in ischemic stroke
Pharmacol Res. 2021 Oct 8:105933. doi: 10.1016/j.phrs.2021.105933. Online ahead of print.ABSTRACTIschemic stroke poses a significant health risk due to its high rate of disability and mortality. To address this problem, several therapeutic approaches have been proposed, including interruption targeting programmed cell death (PCD). Ferroptosis is a newly defined PCD characterized by iron-dependent accumulation of lipid peroxidation, and is becoming a promising target for treating numerous diseases. To explore the underlying mechanisms of the initiation and execution of ferroptosis in ischemic stroke, we established stroke m...
Source: Cell Research - October 11, 2021 Category: Cytology Authors: Chong Li Guangchi Sun Binglin Chen Lei Xu Yangfan Ye Jinyan He Zhongyuan Bao Pengzhan Zhao Zong Miao Lin Zhao Jingming Hu Yongping You Ning Liu Honglu Chao Jing Ji Source Type: research
