Search results for "Degenerative disease"
showing 10 items of 250 documents
Risk factors for incidental durotomy during posterior open spine surgery for degenerative diseases in adults: A multicenter observational study.
2017
Incidental durotomy (ID) is a common intraoperative complication of spine surgery. It can lead to persistent cerebrospinal fluid leakage, which may cause serious complications, including severe headache, pseudomeningocele formation, nerve root entrapment, and intracranial hemorrhage. As a result, it contributes to higher healthcare costs and poor patient outcomes. The purpose of this study was to clarify the independent risk factors that can cause ID during posterior open spine surgery for degenerative diseases in adults. We conducted a prospective multicenter study of adult patients who underwent posterior open spine surgery for degenerative diseases at 10 participating hospitals from July…
Sox-2 Positive Neural Progenitors in the Primate Striatum Undergo Dynamic Changes after Dopamine Denervation.
2013
The existence of endogenous neural progenitors in the nigrostriatal system could represent a powerful tool for restorative therapies in Parkinson's disease. Sox-2 is a transcription factor expressed in pluripotent and adult stem cells, including neural progenitors. In the adult brain Sox-2 is expressed in the neurogenic niches. There is also widespread expression of Sox-2 in other brain regions, although the neurogenic potential outside the niches is uncertain. Here, we analyzed the presence of Sox-2(+) cells in the adult primate (Macaca fascicularis) brain in naïve animals (N = 3) and in animals exposed to systemic administration of 1-methyl-4-phenyl-1,2,3,6 tetrahydropyridine to render th…
DJ-1 mutations and parkinsonism-dementia-amyotrophic lateral sclerosis complex.
2005
Mutations in DJ-1 gene have been recently shown to cause autosomal recessive early-onset Parkinson’s disease (EOPD) in a large Dutch family and in a small consanguineous Italian family.1 Subsequent to this initial finding, several additional DJ-1 mutations were identified in subjects with EOPD.2–6 We describe a family from southern Italy with three brothers affected by a complex disorder characterized by early-onset parkinsonism-dementia-amyotrophic lateral sclerosis (EOPD-D-ALS). The analysis of the DJ-1 gene showed a novel homozygous mutation (E163K) in exon 7 and a novel homozygous mutation (g.168_185dup) in the promoter region of this gene in living affected subjects
Magnetic resonance imaging in juvenile Canavan disease
1993
We present a 2-year-old boy and a 6-year-old girl with mild Canavan disease (CD). Aspartoacylase activity in skin fibroblasts was deficient. Magnetic resonance imaging (MRI) of the brain did not show the prominent leucodystrophy previously reported in CD, but there was a hyperintense signal from the lentiform nuclei and the heads of the caudate nuclei on the T2-weighted MR images. This suggests a specific vulnerability of the corpus striatum in these patients. In the older patient, the white matter became affected at the age of 6 years. Proton magnetic resonance spectroscopy (1H-MRS) of white matter revealed a normal concentration of N-acetyl-L-aspartate (NAA) and a markedly decreased conce…
Infantile neuroaxonal dystrophy: Diagnosis by skin biopsy
1991
A child who shows progressive motor and mental deterioration after the first year of life, who has pyramidal signs, marked muscle hypotonia, but no seizures, suggests to have infantile neuroaxonal dystrophy (INAD). Beyond the age of two years, the EEG also entails characteristic findings. Diagnosis may be obtained by an ultrastructural examination of biopsied skin. The respective clinical and morphological findings are recorded and illustrated from four patients in this report.
Amygdala pathology in Parkinson's disease.
1994
The amygdala undergoes severe pathological changes during the course of Parkinson's disease (PD). Lewy bodies and Lewy neurites are distributed in a specific manner throughout the nuclear complex. The lesional pattern displays only minor interindividual variation. The most prominent changes occur in the accessory cortical and central nuclei. The cortical, accessory basal and granular nuclei show less severe alterations, while the basal and lateral nuclei, as well as the intercalated cell masses, generally remain uninvolved. The amygdala receives a broad range of afferents, allowing integration of exteroceptive information with interoceptive data. It generates major projections to the isocor…
14-3-3 in the cerebrospinal fluid of patients with variant and sporadic Creutzfeldt–Jakob disease measured using capture assay able to detect low lev…
2002
Abstract A protein capture assay was used to measure 14-3-3 (γ-isoform) in the cerebrospinal fluid (CSF) of patients with either variant or sporadic Creutzfeldt–Jakob disease (CJD). The results were compared with those obtained using Western blotting. Elevated levels of 14-3-3γ were found in 58% of variant CJD (vCJD) patients and 82% of sporadic CJD (spCJD) patients using the protein capture assay. Using a Western blotting technique, the presence of CSF 14-3-3γ was detected in 58% of vCJD patients and in 89% of spCJD patients. When the results from the protein capture assay and the Western blot were combined, 14-3-3γ was detected in 77% of vCJD patients and in 91% of spCJD patients. These r…
The Lipofuscin Content of Nerve Cells of the Inferior Olivary Nucleus in Alzheimer's Disease
1994
Lipofuscin, the age pigment, is of interest in Alzheimer's disease because of its property to accumulate in neurons and because of the hypothesis that Alzheimer's dementia is a kind of premature ageing. The amount of intraneuronal lipofuscin in the inferior olivary nucleus of 20 brains from patients with histologically confirmed Alzheimer's disease according to the CERAD protocol and of 20 controls has been measured microfluorometrically. Patients and controls were matched for age. The amount of lipofuscin in the neurons of the inferior olivary nucleus did not differ significantly between the cases of Alzheimer's disease and the controls. The result is discussed taking the findings of previ…
Analysis of the diagnostic pathway and delay in patients with amyotrophic lateral sclerosis in the Valencian Community
2021
Introduction: Amyotrophic lateral sclerosis (ALS) is an insidious, clinically heterogeneous neurodegenerative disease associated with a diagnostic delay of approximately 12 months. No study conducted to date has analysed the diagnostic pathway in Spain. Methods: We gathered data on variables related to the diagnostic pathway and delay for patients diagnosed with ALS between October 2013 and July 2017. Results: The study included 143 patients with ALS (57% men; 68% spinal onset). Patients were diagnosed in public centres in 86% of cases and in private centres in 14%. The mean diagnostic delay was 13.1 months (median 11.7). Patients were examined by neurologists a mean time of 7.9 months afte…
Fractal analyses reveal independent complexity and predictability of gait
2017
Locomotion is a natural task that has been assessed since decades and used as a proxy to highlight impairments of various origins. Most studies adopted classical linear analyses of spatio-temporal gait parameters. Here, we use more advanced, yet not less practical, non-linear techniques to analyse gait time series of healthy subjects. We aimed at finding more sensitive indexes related to spatio-temporal gait parameters than those previously used, with the hope to better identify abnormal locomotion. We analysed large-scale stride interval time series and mean step width in 34 participants while altering walking direction (forward vs. backward walking) and with or without galvanic vestibular…