关键词： behaviorally passive and active rats   hemorrhagic stroke   neurological deficit   tracheal lymphoid tissue  

摘要： Specific features of neurological deficit and changes in the cellular composition of tracheal lymphoid structures during the immediate stage (day 1) of hemorrhagic stroke were studied in rats with various behavioral parameters. Modeling of hemorrhage in the left caudate nucleus of the brain was followed by the development of motor disturbances in the forelimb use asymmetry test and corner rotation paradigm. These animals preferred to use the left forelimb (ipsilateral to the side of hemorrhage) to lean on the cylinder wall. The frequency of using the right forelimb or both forelimbs was reduced under these conditions. The number of left-sided rotations increased, while the percentage of right-sided rotations decreased. The observed changes were accompanied by immune dysfunction. It was manifested in the depletion of lymphoid aggregates of the tracheal wall in lymphocytes and plasma cells. The severity of abnormal neurological symptoms and disturbances in immune homeostasis during the immediate stage of hemorrhagic stroke was greater in behaviorally passive rats than in active specimens.

关键词： Follow-up   Hypothyroidism   Long term   Neurological disease   Pediatric hospitalization   Pregnancy  

摘要： BackgroundMaternal hypothyroidism in pregnancy has been associated with neurocognitive impairment in exposed children, ranging from psychomotor-developmental delay to lower IQ *** investigate the long-term neurological morbidity of children to hypothyroid mothers during *** designA population-based cohort study was performed including all deliveries occurring in a period of 20years at a tertiary medical center. We excluded multiple pregnancies, fetuses with congenital malformations, perinatal mortality cases and women lacking prenatal care from the study. Neurological-related hospitalizations of children (up to 18years) were evaluated using neurological morbidities that were predefined by ICD-9 codes. Kaplan-Meier survival curve was used to compare cumulative hospitalization rate in exposed and unexposed children. A Cox regression model was used to control for *** the study period, 217,910 deliveries met the inclusion criteria. Of them, 1.1% (n=2403) were in mothers with known hypothyroidism during pregnancy. The Kaplan-Meier survival curve demonstrated a significantly higher cumulative incidence of neurological-related hospitalizations in the hypothyroidism group (log rank p=0.007). Total hospitalization rate per person years was significantly higher in the maternal hypothyroidism group (5.5 vs. 3.1, HR=1.37, 95% CI 1.10-1.73, p=0.007). The Cox regression model controlled for various possible confounders including maternal age, maternal obesity, birth weight, preterm birth, maternal diabetes, hypertensive disorders, induction of labor and mode of delivery, found maternal hypothyroidism to be independently associated with pediatric neurological morbidity in these children (adjusted HR=1.33, 95% CI 1.05-1.68, p=0.01).ConclusionMaternal hypothyroidism in pregnancy is independently associated with long-term pediatric neurological morbidity of the offspring.

关键词： Chikungunya   neurological complications   encephalitis  

摘要： Chikungunya (CHIK) has re-emerged as a potential neurotropic virus, with outbreaks recently being reported from many parts of India. The present study was conducted to study the spectrum and outcome of neurological complications in patients of CHIK during the 2016 outbreak in Delhi. A total of 42 cases seropositive for IgM CHIK antibodies by MAC-ELISA and developing neurological complications were enrolled. The male:female ratio was 1:2 (age range = 18-90 years). The neurological manifestations observed were encephalitis (n = 12), bulbar palsy (n = 3), acute disseminated encephalomyelitis (n = 1), cerebellitis (n = 1), myelopathy (n = 1), radiculoneuropathy (n = 3), carpal tunnel syndrome (n = 9) and tremors (n = 1). Ten patients reported worsening of pre-existing neuropathic symptoms of diabetic peripheral neuropathy (n = 4) and carpal tunnel syndrome (n = 6). One patient had aggravation of myasthenia gravis leading to respiratory failure. The majority of patients (n = 32) showed a good outcome;ten had a poor prognosis, out of which four died, all from the encephalitis group, particularly the elderly with co-morbidities.

关键词： Agmatine   Ion channels   Receptors   Neurodegenerative disease   Receptor blockade  

摘要： The central nervous system (CNS) is the most injury-prone part of the mammalian body. Any acute or chronic, central or peripheral neurological disorder is related to abnormal biochemical and electrical signals in the brain cells. As a result, ion channels and receptors that are abundant in the nervous system and control the electrical and biochemical environment of the CNS play a vital role in neurological disease. The N-methyl-d-aspartate receptor, 2-amino-3-(5-methyl-3-oxo-1,2-oxazol-4-yl) propanoic acid receptor, kainate receptor, acetylcholine receptor, serotonin receptor, 2-adrenoreceptor, and acid-sensing ion channels are among the major channels and receptors known to be key components of pathophysiological events in the CNS. The primary amine agmatine, a neuromodulator synthesized in the brain by decarboxylation of l-arginine, can regulate ion channel cascades and receptors that are related to the major CNS disorders. In our previous studies, we established that agmatine was related to the regulation of cell differentiation, nitric oxide synthesis, and murine brain endothelial cell migration, relief of chronic pain, cerebral edema, and apoptotic cell death in experimental CNS disorders. In this review, we will focus on the pathophysiological aspects of the neurological disorders regulated by these ion channels and receptors, and their interaction with agmatine in CNS injury.

关键词： climate change   environmental health   neurology  

摘要： Global temperatures are rising;extreme environmental heat can result in adverse health effects including heatstroke. Acute effects of heat are well recognised, but there is less understanding of potential long-term adverse outcomes. Our aim was to review recent medical literature for clinical cases of environmental heatstroke with a focus on neurological outcome. Structured search strategies were designed to retrieve publications of heatstroke case reports using Ovid Medline and Embase (2000-2016). One thousand and forty-nine abstracts were identified, and after application of exclusion criteria 71 articles deemed relevant. Ninety cases were identified from 71 articles. 100% presented with acute neurological symptoms;87.8% presented with non-neurological symptoms. 44.4% patients recovered fully, 23.3% died, 23.3% suffered convalescent or long-term neurological sequelae, and in 8.9% no long-term follow up was available. 57.1% of the patients who died or had a neurological deficit had no documented co-morbidity. Patterns of neurological deficits included 66.7% patients with motor dysfunction, 9.5% cognitive impairment, 19% both motor and cognitive impairment and 4.7% other. In total 71.4% of the impaired patients had long-term cerebellar dysfunction. Adverse long-term neurological outcomes were common in surviving patients presenting with environmental heatstroke. Permanent neurological deficits were present in 34.4% of survivors where outcome was known;many were young, healthy individuals. Cerebellar injury was common suggesting cerebellar structures are vulnerable to heat. These findings highlight that people of all ages and pre-morbid states are at risk of severe heat-related illness. In the face of climate change, effective interventions for heat-related illness, including both treatment and prevention are necessary.

关键词： Astragaloside VI   Transient cerebral ischemia   Neural stem cell   Proliferation   Epidermal growth factor  

摘要： Radix Astragali (AR) is a commonly used medicinal herb for post-stroke disability in Traditional Chinese Medicine but its active compounds for promoting neurogenic effects are largely unknown. In the present study, we tested the hypothesis that Astragaloside VI could be a promising active compound from AR for adult neurogenesis and brain repair via targeting epidermal growth factor (EGF)-mediated MAPK signaling pathway in post-stroke treatment. By using cultured neural stem cells (NSCs) and experimental stroke rat model, we investigated the effects of Astragaloside VI on inducing NSCs proliferation and self-renewal in vitro, and enhancing neurogenesis for the recovery of the neurological functions in post-ischemic brains in vivo. For animal experiments, rats were undergone 1.5h middle cerebral artery occlusion (MCAO) plus 7days reperfusion. Astragaloside VI (2g/kg) was daily administrated by intravenous injection (i.v.) for 7days. Astragaloside VI treatment promoted neurogenesis and astrogenic formation in dentate gyrus zone, subventricular zone, and cortex of the transient ischemic rat brains in vivo. Astragaloside VI treatment enhanced NSCs self-renewal and proliferation in the cultured NSCs in vitro without affecting NSCs differentiation. Western blot analysis showed that Astragaloside VI up-regulated the expression of nestin, p-EGFR and p-MAPK, and increased neurosphere sizes, whose effects were abolished by the co-treatment of EGF receptor inhibitor gefitinib and ERK inhibitor PD98059. Behavior tests revealed that Astragaloside VI promoted the spatial learning and memory and improved the impaired motor function in transient cerebral ischemic rats. Taken together, Astragaloside VI could effectively activate EGFR/MAPK signaling cascades, promote NSCs proliferation and neurogenesis in transient cerebral ischemic brains, and improve the repair of neurological functions in post-ischemic stroke rats. Astragaloside VI could be a new therapeutic drug candidate for post

关键词： Crossed hemiplegia   Adolphe Gubler   Millard-Gubler syndrome   Migraine   Aphasia   Acute rheumatic fever   Octave landry  

摘要： Adolphe Gubler (1821-1879) is a typical example of a 19th century hospital physician in Paris. Head of a medical unit at Beaujon hospital in 1855, he was nominated to the treatment and pharmacognosia Chair in 1868. He trained many students who became his disciples and remained very close to him. Gubler published prolifically in all areas of medicine. His most well-known work is clearly his contribution to the study of vascular accidents affecting the brain stem, which Auguste Millard worked on simultaneously;hence the eponymous Millard-Gubler syndrome, an example of crossed hemiplegia. Following a brief biography, we will present Gubler's main publications in the area of neurology: on migraine, neurological damage during acute rheumatic fever, aphasia, and the autonomic nervous system. Much of this work was carried out through student theses that Gubler directed. The fame of his contemporary Jean-Martin Charcot (1825-1893) eclipsed that of Gubler, even though the latter was well known and respected among Parisian professors. By tying together the diverse threads of his work, we hope to renew interest in this 19th century neurologist. (C) 2019 Elsevier Masson SAS. All rights reserved.

关键词： Quality of life   Spirituality   Mood   Cognitive decline   Epilepsy   Neurological disorders  

摘要： Purpose: The patients with neurological disorders often report a different quality of life (QoL), which is in part explained by clinical-pathological or psychosocial variables. This study evaluated spirituality in patients with chronic brain pathologies, aiming to clarify its specificity and position to a multidimensional model of QoL. Methods: A hundred and ninety-nine adult patients with epilepsy (E) (n = 88), mild cognitive impairment (MCI) (n = 32), ischemic vascular disorders (n = 29), tumors (n=28), or multiple sclerosis (MS) (n = 22), and 66 healthy subjects were assessed using the World Health Organization Quality of Life (WHOQoL) 100, Spiritual, Religious and Personal Beliefs (SRPB), Beck Depression Inventory (BDI), and State-Trait Anxiety Inventory (STAI) for the QoL, spirituality, depression, and anxiety. The Multiple Ability Self-Report Questionnaire (MASQ) and neuropsychological tests evaluated the cognitive functions. Results: Factor analysis of the SRPB, STAI, and BDI scores yielded four factors: Personal Meaning, Inner Freedom, Awe and Openness, and Mood. Quality of life and spirituality were very similar between the patient groups. In comparison with the controls, all of the patients showed worse QoL, spirituality, mood, and lexical-memory abilities, and the patients with MCI and brain vascular disorders (BVD) also revealed worse cognitive impairments. Trait anxiety, self-rated health, age, and the SRPB Inner independence and Hope and optimism facets predicted the patients' WHOQoL 100 total score: the spiritual, affective, and socioeconomic variables predicted many QoL domains, but diagnosis only affected the Physical domain. Anxiety, self-rated health, Hope and optimism, and Personal beliefs predicted the controls WHOQoL 100 total score. Conclusions: Spirituality, as marked by the meaning of self, inner independence, and transcendence, is distinct from mood. It cooperates, together with the affective states, to determine the QoL of the patients wit

关键词： neurology   Teaching   Child