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Nutrition: Calcium

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Total 218 results found since Jan 2013.

Cryptotanshinone Attenuates Oxygen-Glucose Deprivation/ Recovery-Induced Injury in an in vitro Model of Neurovascular Unit
Conclusions Despite the above limitations, we indicate that the protective mechanism of CTs against OGD/R damage might exert via inhibiting neuron apoptosis and attenuating BBB disruption. Furthermore, we also clarified that CTs inhibited neuronal apoptosis possibly by blocking the activation of MAPK signaling pathways, and CTs alleviating BBB disruption may associated with the regulation of TJPs and MMP-9 in our experiment. Accordingly, CTs will represent a novel and potent candidate for the treatment of CIRI in the future. Ethics Statement This study was carried out in accordance with the recommendations of China�...
Source: Frontiers in Neurology - April 17, 2019 Category: Neurology Source Type: research

The Effects of Intelectin-1 on Antioxidant and Angiogenesis in HUVECs Exposed to Oxygen Glucose Deprivation
Conclusion: These results suggest intelectin-1 promotes angiogenesis, inhibits oxidative stress and reduces apoptosis by stimulating the Akt-eNOS signaling pathway in response to ischemia in vitro. Introduction Stroke is a main reason of human neurological disability, ischemic stroke (IS) accounts for almost 80–90% of all strokes. IS occurs after a cerebral blood flow disruption, leading to cellular death and tissue damage by restricting glucose and oxygen supplies (1). Ischemic vascular diseases cause substantial vascular valve and vascular endothelial cell injuries, eventually damaging the surrounding tis...
Source: Frontiers in Neurology - April 15, 2019 Category: Neurology Source Type: research

Postreperfusion Blood Pressure Variability After Endovascular Thrombectomy Affects Outcomes in Acute Ischemic Stroke Patients With Poor Collateral Circulation
Conclusion: Postreperfusion BP management by decreasing BPV may have influence on improving clinical outcome in cases of poor collateral circulation among patients achieving successful recanalization after ERT. Introduction Endovascular recanalization therapy (ERT) has been adopted as standard stroke care in patients with acute ischemic stroke (1–6). Time to recanalization and degree of recanalization are the most important predictors of clinical outcomes after ERT (7). Before recanalization, an effort to reduce the time from symptom onset to reperfusion is critical for penumbral salvage. After recanalization...
Source: Frontiers in Neurology - April 11, 2019 Category: Neurology Source Type: research

SWI filtered-phase imaging in calcific cerebral embolism secondary to cardiac myxoma
A 40-year-old man presented with transient weakness and visual field loss following syncope. Head CT showed multiple sulcal calcifications and a chest CT revealed a partially calcified left atrial myxoma (figure 1).1 MRI showed foci of restricted diffusion consistent with embolic infarcts.2 Calcific emboli are usually atheromatous in nature and have been associated with an increased risk of recurrent stroke.1 Susceptibility-weighted imaging (SWI) filtered-phase images have shown value in differentiating between paramagnetic (e.g., methemoglobin, deoxyhemoglobin in veins) and diamagnetic (calcium) substances due to their op...
Source: Neurology Clinical Practice - April 7, 2019 Category: Neurology Authors: Silva, G., Fabris, N., Varvarikos, J., Sills, T., Zamora, C. Tags: Stroke in young adults, MRI, All Cerebrovascular disease/Stroke, Cardiac, Embolism Case Source Type: research

Factors Influencing Quality of Life in Stroke Patients: Focus on Eating Habits
This study aimed to identify lifestyle factors about eating habits that may affect the quality of life (QOL) in elderly stroke patients. Methods: Fifty elderly patients with a first-ever stroke were enrolled. QOL was assessed by the Stroke and Aphasia QOL Scale-39-J. Lifestyle factors about eating habits were collected using questionnaires (Questions 1-17) for the intake of salt, calcium, magnesium, potassium, taurine, fiber, and protein, and the frequency of breakfast.
Source: Journal of Stroke and Cerebrovascular Diseases - March 18, 2019 Category: Neurology Authors: Reina Chiba, Saya Tominaga, Kasumi Mikami, Maiko Kitajima, Mayumi Urushizaka, Toshiko Tomisawa, Junko Chiba, Joji Hagii, Minoru Yasujima, Tomohiro Osanai Source Type: research

Neuroprotective effect of grape seed extract on brain ischemia: a proteomic approach
AbstractStroke is one of the leading causes of long-lasting disability in human and oxidative stress an important underlying cause. Molecular insights into pathophysiology of ischemic stroke are still obscure, and the present study investigated the protective effect of high dosage Grape Seed Extract (GSE 2.5  g/kg) on brain ischemia-reperfusion (I/R) injury using a proteomic approach. Ischemia was realized by occlusion of the common carotid arteries for 30 min followed by 1 h reperfusion on control or GSE pre-treated rats, and a label-free quantification followed by mass spectrometry analysis used to evaluate I/R induce...
Source: Metabolic Brain Disease - February 22, 2019 Category: Neurology Source Type: research

Neuroimmunological interactions in stroke
ConclusionsUnderstanding the relationship between the immune system and the nervous system not only deepens our knowledge of stroke but also provides new diagnostic, prognostic, and therapeutic strategies that may increase the quality of life of stroke patients.ResumenIntroducciónEl ictus es una de las principales causas de mortalidad en el mundo y debido al incremento en la expectativa de vida su incidencia va en aumento; sin embargo, el desarrollo de nuevos medicamentos con utilidad clínica ha sido prácticamente nulo, por lo que hasta la fecha el tratamiento de estos pacientes es muy limitado.DesarrolloLa evidencia bÃ...
Source: Neurologia - October 5, 2018 Category: Neurology Source Type: research

Neuroimaging, serum biomarkers, and patient characteristics as predictors of upper limb functioning 12 weeks after acute stroke: an observational, prospective study.
CONCLUSION: ASPECTS score ≥ 8 within 24 hours and S100β protein < 140.5 ng/L at 48 hours predict better upper limb functioning, while advanced age predicts worse upper limb functioning 12 weeks after stroke. PMID: 30213243 [PubMed - as supplied by publisher]
Source: Topics in Stroke Rehabilitation - September 13, 2018 Category: Neurology Authors: Branco JP, Oliveira S, Sargento-Freitas J, Galego O, Cordeiro G, Cunha L, Freire Gonçalves A, Pinheiro J Tags: Top Stroke Rehabil Source Type: research

Serum magnesium but not calcium was associated with hemorrhagic transformation in stroke overall and stroke subtypes: a case-control study in China
AbstractAssociation between serum calcium and magnesium versus hemorrhagic transformation (HT) remains to be identified. A total of 1212 non-thrombolysis patients with serum calcium and magnesium collected within 24  h from stroke onset were enrolled. Backward stepwise multivariate logistic regression analysis was conducted to investigate association between calcium and magnesium versus HT. Calcium and magnesium were entered into logistic regression analysis in two models, separately: model 1, as continuous va riable (per 1-mmol/L increase), and model 2, as four-categorized variable (being collapsed into quartiles). HT oc...
Source: Neurological Sciences - July 19, 2018 Category: Neurology Source Type: research

Active role of capillary pericytes during stimulation-induced activity and spreading depolarization
AbstractSpreading depolarization is assumed to be the mechanism of migraine with aura, which is accompanied by an initial predominant hyperaemic response followed by persistent vasoconstriction. Cerebral blood flow responses are impaired in patients and in experimental animals after spreading depolarization. Understanding the regulation of cortical blood vessels during and after spreading depolarization could help patients with migraine attacks, but our knowledge of these vascular mechanisms is still incomplete. Recent findings show that control of cerebral blood flow does not only occur at the arteriole level but also at ...
Source: Brain - June 27, 2018 Category: Neurology Source Type: research

The Role of Serum Calcium Level in Intracerebral Hemorrhage Hematoma Expansion: Is There Any?
AbstractSpontaneous intracerebral hemorrhage (ICH) is a devastating form of stroke, with a high rate of mortality and morbidity. Even with the best current medical or surgical interventions, outcomes remain poor. The location and initial hematoma volume are strong predictors of mortality. Hematoma expansion (HE) is a further marker of poor prognosis that may be at least partly preventable. Several risk factors for HE have been identified, including baseline ICH volume, anticoagulation, and computed tomography angiography spot signs. Recent studies have shown the correlation of serum calcium (Ca++) levels on admission with ...
Source: Neurocritical Care - June 27, 2018 Category: Neurology Source Type: research

High Circulatory Phosphate Level Is Associated with Cerebral Small-Vessel Diseases
AbstractHigh phosphate is linked to vascular calcification and endothelial dysfunction; however, its relationship with cerebral small-vessel diseases (CSVDs) is still unknown. Study subjects were prospectively recruited from the community-based I-Lan Longitudinal Aging Study. CSVDs including lacunes, white matter hyperintensities (WMHs), and cerebral microbleeds were evaluated using 3T magnetic resonance images. Multivariate analyses were performed to study the associations between circulatory phosphate level and the presence of CSVDs. In vitro experiments included human brain microvascular endothelial cell (HBMEC) studies...
Source: Translational Stroke Research - June 25, 2018 Category: Neurology Source Type: research

Low Serum Calcium and Magnesium Levels and Rupture of Intracranial Aneurysms Brief Report
Conclusions—In this large case–control study, hypocalcemia and hypomagnesemia at diagnosis were significantly associated with ruptured aneurysms. Impaired hemostasis caused by hypocalcemia and hypomagnesemia may explain this association.
Source: Stroke - June 25, 2018 Category: Neurology Authors: Anil Can, Robert F. Rudy, Victor M. Castro, Dmitriy Dligach, Sean Finan, Sheng Yu, Vivian Gainer, Nancy A. Shadick, Guergana Savova, Shawn Murphy, Tianxi Cai, Scott T. Weiss, Rose Du Tags: Risk Factors, Cerebral Aneurysm Brief Reports Source Type: research

Early Blood-Brain Barrier Disruption in Ischemic Stroke Initiates Multifocally Around Capillaries/Venules Basic Sciences
Conclusions—Early BBBD in focal cerebral ischemia initiates multifocally in the distal capillary and venular bed of the cerebral microvasculature. It is closely associated with perimicrovascular vasogenic edema and microglial activation and predicts the extent of final infarction.
Source: Stroke - May 25, 2018 Category: Neurology Authors: Angelika Hoffmann, Tassilo Dege, Reiner Kunze, Anne–Sophie Ernst, Holger Lorenz, Laura–Ines Bohler, Thomas Korff, Hugo H. Marti, Sabine Heiland, Martin Bendszus, Xavier Helluy, Mirko Pham Tags: Biomarkers, Vascular Biology, Magnetic Resonance Imaging (MRI), Blood-Brain Barrier, Ischemic Stroke Original Contributions Source Type: research

Postpartum Increases in Cerebral Edema and Inflammation in response to Placental Ischemia during Pregnancy
Publication date: Available online 26 March 2018 Source:Brain, Behavior, and Immunity Author(s): Ahsia M. Clayton, Qingmei Shao, Nina D. Paauw, Ashtin B. Giambrone, Joey P. Granger, Junie P. Warrington Reduced placental blood flow results in placental ischemia, an initiating event in the pathophysiology of preeclampsia, a hypertensive pregnancy disorder. While studies show increased mortality risk from Alzheimer’s disease, stroke, and cerebrovascular complications in women with a history of preeclampsia, the underlying mechanisms are unknown. During pregnancy, placental ischemia, induced by reducing uterine perfusion pr...
Source: Brain, Behavior, and Immunity - March 26, 2018 Category: Neurology Source Type: research