Abscess ; Anti-Bacterial Agents/therapeutic use* ; Cerebral Ventriculitis/drug therapy* ; Encephalitis/drug therapy* ; Humans ; Pneumonia/etiology*

While inflammatory bowel disease (IBD) might be a risk factor in the development of brain dysfunctions, the underlying mechanisms are largely unknown. Here, mice were treated with 5% dextran sodium sulfate (DSS) in drinking water and sacrificed on day 7. The serum level of IL-6 increased, accompanied by elevation of the IL-6 and TNF-α levels in cortical tissue. However, the endotoxin concentration in plasma and brain of mice with DSS-induced colitis showed a rising trend, but with no significant difference. We also found significant activation of microglial cells and reduction in occludin and claudin-5 expression in the brain tissue after DSS-induced colitis. These results suggested that DSS-induced colitis increases systemic inflammation which then results in cortical inflammation via up-regulation of serum cytokines. Here, we provide new information on the impact of colitis on the outcomes of cortical inflammation.
Animals ; Calcium-Binding Proteins ; metabolism ; Caspase 3 ; metabolism ; Cerebral Cortex ; pathology ; Claudin-5 ; metabolism ; Colitis ; chemically induced ; complications ; pathology ; Cytokines ; genetics ; metabolism ; Dextran Sulfate ; toxicity ; Disease Models, Animal ; Encephalitis ; etiology ; Gene Expression Regulation ; drug effects ; Mice ; Microfilament Proteins ; metabolism ; Occludin ; metabolism ; Polysaccharides ; blood ; toxicity ; Time Factors

Adult ; Anesthesia ; methods ; Anti-N-Methyl-D-Aspartate Receptor Encephalitis ; etiology ; therapy ; Female ; Humans ; Ovarian Neoplasms ; therapy ; Teratoma ; therapy

Enterovirus 71 frequently involves the central nervous system and may present with a variety of neurologic manifestations. Here, we aimed to describe the clinical features, magnetic resonance imaging (MRI) findings, and cerebrospinal fluid (CSF) profiles of patients presenting with neurologic complications of enterovirus 71 infection. We retrospectively reviewed the records of 31 pediatric patients hospitalized with acute neurologic manifestations accompanied by confirmed enterovirus 71 infection at Ulsan University Hospital between 2010 and 2014. The patients' mean age was 2.9 ± 5.5 years (range, 18 days to 12 years), and 80.6% of patients were less than 4 years old. Based on their clinical features, the patients were classified into 4 clinical groups: brainstem encephalitis (n = 21), meningitis (n = 7), encephalitis (n = 2), and acute flaccid paralysis (n = 1). The common neurologic symptoms included myoclonus (58.1%), lethargy (54.8%), irritability (54.8%), vomiting (48.4%), ataxia (38.7%), and tremor (35.5%). Twenty-five patients underwent an MRI scan; of these, 14 (56.0%) revealed the characteristic increased T2 signal intensity in the posterior region of the brainstem and bilateral cerebellar dentate nuclei. Twenty-six of 30 patients (86.7%) showed CSF pleocytosis. Thirty patients (96.8%) recovered completely without any neurologic deficits; one patient (3.2%) died due to pulmonary hemorrhage and shock. In the present study, brainstem encephalitis was the most common neurologic manifestation of enterovirus 71 infection. The characteristic clinical symptoms such as myoclonus, ataxia, and tremor in conjunction with CSF pleocytosis and brainstem lesions on MR images are pathognomonic for diagnosis of neurologic involvement by enterovirus 71 infection.
Acute Disease ; Brain/diagnostic imaging ; Central Nervous System Diseases/etiology/*pathology ; Child ; Child, Preschool ; Encephalitis/pathology ; Enterovirus A, Human/genetics/*isolation & purification ; Enterovirus Infections/drug therapy/*pathology/virology ; Feces/virology ; Female ; Humans ; Immunoglobulins/administration & dosage ; Infant ; Injections, Intravenous ; Leukocytes/cytology ; Leukocytosis/cerebrospinal fluid/pathology ; Magnetic Resonance Imaging ; Male ; RNA, Viral/genetics/metabolism ; Real-Time Polymerase Chain Reaction ; Republic of Korea ; Retrospective Studies ; Seasons

Encephalitis ; diagnosis ; epidemiology ; etiology ; therapy ; Hashimoto Disease ; diagnosis ; epidemiology ; etiology ; therapy ; Humans

Adolescent ; Anti-N-Methyl-D-Aspartate Receptor Encephalitis ; complications ; Autonomic Nervous System Diseases ; etiology ; Child ; Female ; Humans

Adult ; Female ; Humans ; Limbic Encephalitis ; etiology ; Ovarian Neoplasms ; complications ; Paraneoplastic Syndromes, Nervous System ; etiology ; Receptors, N-Methyl-D-Aspartate ; immunology ; Seizures ; etiology ; Teratoma ; complications

Adult ; Female ; Humans ; Limbic Encephalitis ; diagnosis ; etiology ; Ovarian Neoplasms ; complications ; diagnosis ; Paraneoplastic Cerebellar Degeneration ; diagnosis ; etiology

BACKGROUNDPatterns observed with electroencephalography (EEG) for patients who have encephalitis are usually known as generalized nonspecific cerebral abnormalities. The aim of this study was to investigate the presence of a special EEG pattern for patients with encephalitis and to explore features related to this special and uncommon pattern.

METHODSEEG monitoring was performed for every patient aged >15 years with encephalitis who was hospitalized between December 2011 and March 2014. Clinical characteristics and EEG recordings were collected and evaluated.

RESULTSFifty-two patients with encephalitis were enrolled in our study with a 2-h median EEG recording time, and extreme beta brushes (EBBs) occurred in 17 patients (32.7%). Its presence was not significant regarding gender, age, psychiatric medication use, EEG rhythmic disorganization (P > 0.05). Nevertheless, among the patients with EBBs, nine patients (52.9%) had epileptic seizures that had a significant detection rate (P < 0.05); moreover, the cerebrospinal fluid (CSF) or serum of 15 patients (88.2%) with EBBs was positive for antibodies (P < 0.05). Four patients (23.5%) who had EBB had corresponding regional distributions on neuroimaging scans. The EBBs completely correlated with the regional distributions of spike discharges for four patients.

CONCLUSIONEBB is a special EEG pattern for patients with encephalitis, especially those with epileptic seizures or who have antibody-positive CSF/serum, and should be considered in clinical practice.

Adolescent ; Adult ; Aged ; Electroencephalography ; methods ; Encephalitis ; diagnosis ; etiology ; Female ; Humans ; Male ; Middle Aged ; Young Adult

Child Behavior Disorders ; etiology ; Child, Preschool ; Dyskinesias ; etiology ; Encephalitis ; complications ; diagnosis ; Female ; Humans ; Sleep Wake Disorders ; etiology