Jul
05
2010
0

Care of the returning veteran.

Of the 23.8 million military veterans living in the United States, approximately 3 million have served in Operation Enduring Freedom or Operation Iraqi Freedom. The injuries and illnesses that affect veterans returning from combat are predictable. Blast injuries are common and most often present as mild traumatic brain injury, which is synonymous with concussion. Family physicians caring for returning veterans will also encounter conditions such as posttraumatic stress disorder at rates higher than those in the general population. The symptoms associated with posttraumatic stress disorder and mild traumatic brain injury often overlap and can present concurrently. Treatment of traumatic brain injury should be based on symptoms and guided by clinical practice guidelines from the U.S. Department of Veterans Affairs and Department of Defense. Family physicians should understand the range of post-war health concerns and screen returning service members for posttraumatic stress disorder, substance abuse, suicidality, and clinical depression. Family physicians are well positioned to offer continuity of care for issues affecting returning service members and to coordinate the delivery of specialized care when needed. (Am Fam Physician. 2010;82(1):43-49. Copyright (c) 2010 American Academy of Family Physicians.).

Written by admin in: Brain Damage |
Jul
05
2010
0

Maternal treatment of rats with the new pyridoindole antioxidant during pregnacy and lactation resulting in improved offspring hippocampal resistance to ischemia in vitro.

OBJECTIVE: Damage to the developing brain may be caused by maternal environment, nutritional deficiencies, failure of protective mechanisms, etc. Further, the developing brain may be damaged by intrauterine ischemia or by ischemia in newborns complicated by perinatal asphyxia. There is an effort to find agents with neuroprotective effect on the developing brain. The aim was to study the effect of the new pyridoindole antioxidant SMe1EC2 on the resistance of offspring hippocampus exposed to ischemia in vitro after treatment of mothers. MATERIALS AND METHODS: The electrically evoked responses were determined by extracellular recording from offspring hippocampal slices. The effect of oral treatment of rats with SMe1EC2 over 18 consecutive days, from day 15 of gestation to day 10 post partum (PP) was analyzed in the model of ischemia in vitro measured on the hippocampus of 21-day-old pups, with focus on neuronal function recovery in reoxygenation. RESULTS: Increased recovery of neuronal response was found at the end of 20-min reoxygenation in offspring hippocampal slices exposed to 10-min hypoxia/hypoglycemia from rats whose mothers were treated with the dose of 50 and 250 mg/kg of SMe1EC2, compared to control offspring slices (mothers received vehicle over the same time). CONCLUSIONS: The increased offspring hippocampus resistance to hypoxia/hypoglycemia due to 18-day maternal treatment with SMe1EC2 might have been obtained via the transplacental way as well as in the neonatal period via breast milk, skin and saliva. The manifested neuroprotective effect of SMe1EC2 on the developing brain might find exploitation during risk pregnancy and delivery.

Written by admin in: Brain Damage |
Jul
05
2010
0

Mild traumatic brain injury: a risk factor for neurodegeneration.

ABSTRACT: Recently, it has become clear that head trauma can lead to a progressive neurodegeneration known as chronic traumatic encephalopathy. Although the medical literature also implicates head trauma as a risk factor for Alzheimer’s disease, these findings are predominantly based on clinical diagnostic criteria that lack specificity. The dementia that follows head injuries or repetitive mild trauma may be caused by chronic traumatic encephalopathy, alone or in conjunction with other neurodegenerations (for example, Alzheimer’s disease). Prospective longitudinal studies of head-injured individuals, with neuropathological verification, will not only improve understanding of head trauma as a risk factor for dementia but will also enhance treatment and prevention of a variety of neurodegenerative diseases.

Written by admin in: Brain Damage |
Jul
05
2010
0

New Therapeutic Strategy for Parkinson’s and Alzheimer’s Disease.

The development of potential neuroprotective therapies for neurodegenerative diseases (Parkinson's and Alzheimer's Disease) must be based on understanding their molecular and biochemical pathogenesis. Many potential pathways of neuronal cell death have been implicated in a mouse model of neurodegenerative disease, including excitotoxicity, toxicity from reactive oxygen species (superoxide anion, nitric oxide, hydroxyl radical), apoptosis (caspase-dependent and -independent pathways), necrosis and glial injury. Some agents that act on these pathways may be available for protecting the brain against chronic neurodegenerative conditions like Parkinson's and Alzheimer's disease. Drugs currently used to treat neurological disease and injuries provide temporary relief of symptoms but do not stop or slow the underlying neurodegenerative process. Restorative therapies for Parkinson's Disease are currently focused on cell replacement and administration of growth factors and small-molecule neurotrophic agents. The new experimental drugs, by contrast, target the common, underlying cause of destructive process of brain cell death. For example, p53 inhibitors attack a key protein involved in nerve cell death and represent a new strategy for preserving brain function following sudden injury or chronic disease. Analogues of pifithrin-alpha (PFT), which was shown in previous studies to inhibit p53, were designed, synthesized and tested to see whether they would work against cultured brain cells and animal models of neurodegenerative disease. Moreover, several agents based on the predominant anti-amyloid strategy, targeting amyloid-beta (Aβ) peptide, which aggregates in the plaques that are a hallmark of Alzheimer's disease, would affect disease progression. Researchers are already making great strides in developing a vaccine for this progressive brain disorder. Immunization could offer a way to blunt or even prevent the deadly, memory-robbing disease. Here we review many of potential neuroprotective therapies, and strategies that might be suited to the development of innovative approaches that prevent degeneration and restore function in Parkinson's disease.

Written by admin in: Brain Damage |
Jul
05
2010
0

The effect of antioxidants (N-acetylcysteine and melatonin) on hypoxia due to carbonmonoxide poisoning.

We aimed to determine the effect NAC (N-acetylcysteine) and melatonin on the histopathological and biochemical paramethers in the rats poisoned with CO (Carbon monoxide) experimentally. Winster albino female rats were placed in a plexiglass chamber and they were poisoned with CO. After the poisoning, rats were randomly divided into 3 groups. The group given only normal saline, was used as a control group (n = 9). The second group was given 30 mg/kg intraperitonally NAC (n = 10). And the third group was treated with 10 mg/kg of melatonin intramuscularly (n = 9). It is determined that some biochemical values affected by NAC but not by melatonin. CK, ALT, Lactate, MDA levels were significantly higher in NAC group than control and Melatonin group (p < 0.01 for all comparisons). Thiol level was lower in NAC group than control group and Melatonin group (p < 0.01 and p < 0.001, respectively). There were no statistical significant differences between the melatonin and control group. There were statistically significant difference between control, NAC and Melatonin groups according to brain and lung tissue damage. It is shown that both NAC and Melatonin are reducing the brain and lung tissue damage of CO poisoning but due to biochemical results worsened by NAC, Melatonin may recommend for CO poisoning (Tab. 3, Ref. 21).

Written by admin in: Brain Damage |
Jul
05
2010
--

Developmental Coordination Disorder and cerebral palsy: Categories or a continuum?

Developmental Coordination Disorder (DCD) is a movement disorder affecting between 1.7% and 6% of children aged 5-11years. The Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition Text Revision codes DCD as an Axis I Clinical Disorder. If there is neurological involvement, as is the case for cerebral palsy, the movement disorder would be coded as an Axis III General Medical Condition. What little is known of the aetiology of DCD implicates neurological involvement. In a previous co-twin control study of monozygotic twins concordant and discordant for DCD, seven of the nine twins who met criteria for DCD on the McCarron Assessment of Neuromuscular Development experienced perinatal oxygen perfusion problems, while another experienced prenatal complications. This supported findings in an earlier study of a relationship between environmental factors and DCD, and strengthened the hypothesis that DCD and cerebral palsy have similar causal pathways and may fall on a continuum of movement disorder rather than being discrete categories. In the present paper, this hypothesis is tested by application of the nine principles identified by Sir Austin Bradford Hill as important when considering observed associations between two variables. Implications for prevention, clinical intervention, policy, and classification systems are discussed. Copyright © 2010. Published by Elsevier B.V.

Written by admin in: Cerebral Palsy |
Jul
05
2010
--

[Primary cerebral vasculitis in children.]

INTRODUCTION: Primary cerebral vasculitis in children is a newly recognized, rare inflammatory condition affecting the vessels of the brain. It is characterized by newly acquired neurological deficit(s) with angiographic or histological evidence of central nervous system (CNS) vasculitis, in the absence of other known diseases with these findings. MATERIAL AND METHODS: We performed a retrospective review of children below 15 years submitted with CNS vasculitis to the department between 1999 and 2008. RESULTS: Six (two boys, four girls) of ten children with clinical and vascular imaging findings detected by magnetic resonance were diagnosed with primary CNS vasculitis. Age at onset was three to 12 years. Acutely acquired hemiparesis was seen in five children, two had facial palsy. Among other symptoms were headache, ataxia, dysarthria, loss of consciousness and seizures. Only modest changes in blood and spinal fluid values were seen. On magnetic resonance angiography, varying segmental stenoses were found. All had supratentorial lesions, and in two patients infratentorial lesions were also detected by MRI. Monthly treatment with high-dose intravenous corticosteroids for six months was successful in most of the patients. In two patients with progressive CNS vasculitis, the treatment was supplemented by intravenous cyclophosphamide and azathioprin, respectively. CONCLUSION: Primary CNS vasculitis is an acutely acquired inflammatory disease with severe neurological deficits and sequelae which may have a fatal outcome. Despite this the prognosis is acceptable since event-free survival can be achieved in almost 70% if early immunosuppressive therapy is initiated.

Written by admin in: Cerebral Palsy |
Jul
05
2010
--

Growth in Children with Cerebral Palsy during five years after Selective Dorsal Rhizotomy: a practice-based study.

ABSTRACT: BACKGROUND: Overweight is reported as a side effect of SDR. The aims were to study the development of weight, height and body mass index (BMI) during five years after SDR. METHODS: This prospective, longitudinal and practice-based study included all 56 children with CP spastic diplegia undergoing SDR from the start in March 1993 to April 2003 in our hospital. The preoperative Gross Motor Function Classification System (GMFCS) levels were I-II in 17, III in 15, IV-V in 24 children. Median age at SDR was 4.3 years (range 2.4-7.4 years). Weight and height/recumbent length were measured. Swedish growth charts for typically developing children generated weight, height and BMI z-scores for age and gender. RESULTS: The preoperative median z-scores were for height -1.92 and for body mass index (BMI) -0.22. Five years later, the median BMI z-score was increased by +0.57 (p<0.05). The occurrence of thinness (BMI < -2 SD) was decreased (n.s.) and obesity (BMI > +2 SD) increased (p<0.05). Baseline BMI and age at the start of follow-up influenced the BMI change during the five years (p<0.001 and p<0.05 respectively). The individual growth was highly variable, but a tendency towards increasing stunting with age was seen in severe gross motor dysfunction (GMFCS levels IV-V) and the opposite, a slight catch-up of height in children with walking ability (GMFCS levels I-III). CONCLUSIONS: These are the first available subtype- and GMFCS-specific longitudinal growth data for children with CP spastic diplegia. Their growth potential according to these data should be regarded as a minimum, as some children were undernourished. It is unknown whether the spasticity reduction through SDR increased the weight gain velocity, or if the relative weight increase was part of the general "obesity epidemic". For some children the weight increase was highly desirable. In others, it resulted in overweight and obesity with risk of negative health effects. Weight and height should be monitored to enable early prevention of weight aberrations also causing problems with mobility, activity and participation.

Written by admin in: Cerebral Palsy |
Jul
05
2010
--

Visual guidance of interceptive actions in children with spastic unilateral cerebral palsy is influenced by the side of the lesion.

Purpose. To determine the type of visual information used by children with spastic unilateral cerebral palsy (SUCP) in order to intercept a ball and to verify whether this information was dependent on the side of the lesion. More specifically, it was examined whether the interception was controlled on the basis of a time or a distance strategy, initiating the catch when the ball is at a fixed time interval or at a fixed distance from the point of interception. Methods. Three groups of children were included. Children with either a left sided (LHL) or a right sided lesion (RHL) and children without a lesion [typically developing (TD)] intercepted a ball from a conveyor belt. In order to intercept the ball successfully they had to walk and to reach for the ball at the interception point 4 m away. Results. Children with LHL had a longer decision time and started their reach movement earlier. In 56% of the children with LHL a distance strategy was observed, while in the TD and the children with RHL predominantly a time strategy was found. Conclusions. The side of the lesion influences the visual information used to initiate interceptive actions.

Written by admin in: Cerebral Palsy |
Jul
05
2010
--

The perception of involved professionals towards research feasibility and usefulness: lessons from the Multi-Site Trial on Efficacy of Constraint Induced Movement Therapy in Children with Hemiplegia.

BACKGROUND: In the last decades, the world of rehabilitation has been more and more calling for clear evidence to support intervention and numerous research programs have been developed. At stake, relatively little research on opinions and attitude of rehabilitation personnel involved in research conducted in real clinical settings has been carried out. AIM: To explore the opinion of professionals involved in a national clinical trial on research. DESIGN: Multicentre cross-sectional study. SETTING: 19 rehabilitation centres/services (4 research institutes, 15 local rehabilitation services). POPULATION: All professional participating to a multi-centre clinical trial on the effects of Constraint Induced Movement Therapy on children with hemiplegic cerebral palsy. METHODS: A 15-questions questionnaire inquiring feasibility, usefulness, products, costs, judgement and perceptions about clinical research in rehabilitation was admistered. RESULTS: Among those working in one of the 19 rehabilitation centres part of the multicentric study, 76 professionals were asked to fill in the questionnarie. 68 professionals answered (89.4% of response rate). More than 75% of the sample thinks that its rehabilitation centre is suited to develop clinical research. Research results useful for the development of their daily activities (new tools for the assessment of children, to demonstrate the efficacy of a new treatment option and to learn a new way of working, and to strengthen the ties within the working team). Research is costly in terms of personal time and effort, but it can modify the rehabilitation praxis (assessment tools, the relationship with colleagues/patients). 98% of the interviewees declared the willingness to participate to other research projects. CONCLUSION AND CLINICAL REHABILITATION IMPACT: This survey highlights the importance of conducting research in local rehabilitation services, not only in terms of generation of new evidences, but also in terms of building networks, sharing experiences and knowledge, connecting with centers of excellence and providing a specific training for research conduction.

Written by admin in: Cerebral Palsy |

Theme: TheBuckmaker. Free PHP Scripts