نتایج جستجو برای: blood plexus

تعداد نتایج: 697664  

Journal: :The Journal of comparative neurology 1999
W B Grueber J W Truman

Each hemisegment of the Manduca sexta larva is supplied with a subepidermal plexus of approximately 350 multidendritic neurons. An initial set of neurons, the primary plexus neurons, arise at 35-45% of embryogenesis. These neurons comprise 12-16 uniquely identifiable neurons per hemisegment that have homologues in other insect larvae. Each spreads processes across a characteristic portion of th...

Journal: :Brain : a journal of neurology 2011
James R Connor Padmavathi Ponnuru Xin-Sheng Wang Stephanie M Patton Richard P Allen Christopher J Earley

Restless legs syndrome is a neurological disorder characterized by an urgency to move the legs during periods of rest. Data from a variety of sources provide a compelling argument that the amount of iron in the brain is lower in individuals with restless legs syndrome compared with neurologically normal individuals. Moreover, a significant percentage of patients with restless legs syndrome are ...

2011
Jaehyun Kim Yongwook Jung

In this study, expressions of aquaporin (AQP) 1, AQP4, endothelial nitric oxide synthase (eNOS), and vascular endothelial growth factor in blood-cerebrospinal fluid (CSF) barrier and blood-brain barrier (BBB) are examined in rat choroid plexus and peri-infarcted hippocampal formation (HF) following systemic hyponatremia (SH) and permanent middle cerebral artery occlusion (pMCAO). These events a...

2011
James R. Connor Padmavathi Ponnuru Xin-Sheng Wang Stephanie M. Patton Richard P. Allen Christopher J. Earley

Restless legs syndrome is a neurological disorder characterized by an urgency to move the legs during periods of rest. Data from a variety of sources provide a compelling argument that the amount of iron in the brain is lower in individuals with restless legs syndrome compared with neurologically normal individuals. Moreover, a significant percentage of patients with restless legs syndrome are ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Limor Regev Eli Ezrielev Eran Gershon Shosh Gil Alon Chen

Administration of synthetic or purified peptides directly into the brain ventricles is a method commonly used by neuroscientists for exploring physiological and behavioral functions of gene products. i.v. administration is controlled by the blood-brain barrier, which limits its effectiveness, and current approaches for acute or chronic intracerebroventricular delivery have significant technical...

2008
Cheung Richard Yiu Lai Heng Lee Kumar M Prakash Gee Chuan Wong

Acute myeloid leukaemia (AML) is a heterogeneous group of haematological disorders characterized by uncontrolled proliferation and infiltration of neoplastic haematopoietic cells in the bone marrow and blood. Extramedullary tissue involvement is not uncommon as part of the presentation in AML. Sites of involvement include liver, spleen, skin, gum, bone, testis and central nervous system (CNS). ...

Journal: :Journal of biomedical optics 2017
Faezeh Talebi Liasi Ravikant Samatham Steven L Jacques

Assessing the metabolic activity of a tissue, whether normal, damaged, aged, or pathologic, is useful for diagnosis and evaluating the effects of drugs. This report describes a handheld optical fiber probe that contacts the skin, applies pressure to blanch the superficial vascular plexus of the skin, then releases the pressure to allow refill of the plexus. The optical probe uses white light sp...

Journal: :F1000Research 2022

We report a rare case of vertebro-vertebral arteriovenous fistula (VVAVF) manifesting as amyotrophic lateral sclerosis (ALS). A 76-year-old female patient presented with progressive weakness, muscle atrophy, fasciculation, and preserved deep tendon reflexes in the right upper limb. Electrophysiological testing showed lower motor neuron dysfunction. The was suspected to have ALS, but cerv...

2010
Young Jae Kim Yong-Wook Jung

Erythropoietin (EPO) has been demonstrated the ability of recombinant human erythropoietin (r-Hu-EPO), when administered intracerebro-ventricularly, to improve stroke outcome through the reduction of stroke damage. In a brain ischemic model, however, systemic administration of r-Hu-EPO has not been intensely investigated given that in general, large glycosylated molecules have been deemed incap...

Journal: :Circulation research 2002
Zheng Gang Zhang Li Zhang Quan Jiang Michael Chopp

We investigated whether circulating endothelial progenitor cells contribute to neovascularization after stroke. Donor bone marrow cells obtained from transgenic mice constitutively expressing beta-galactosidase transcriptionally regulated by an endothelial-specific promoter, Tie2, were injected into adult mice. Focal cerebral ischemia was induced by embolic middle cerebral artery (MCA) occlusio...

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