Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 64
Filter
1.
Annu Int Conf IEEE Eng Med Biol Soc ; 2020: 6086-6089, 2020 07.
Article in English | MEDLINE | ID: mdl-33019359

ABSTRACT

Premature infants or neonates in need of advanced clinical care must be transported to specialized hospitals. Past studies have examined vibrations experienced by patients during transport; however, multiple confounding factors limit the utility of on-road data. Hence, the development of a standardized test environment is warranted. The overall purpose of this project is to characterize vibrations during neonatal patient transport and develop mitigation strategies to reduce exposure. This paper focusses on the development of a laboratory test environment and procedure that enables studying the equipment vibration in a comprehensive and repeatable manner. For the first time, a complete neonatal patient transport system, including a stretcher, has been mounted on an industrial shaker. Results largely validate the system's ability to simulate on-road vibrations with high repeatability.


Subject(s)
Hospitals, Special , Vibration , Humans , Infant , Infant, Newborn
2.
Drugs Today (Barc) ; 53(9): 469-476, 2017 Sep.
Article in English | MEDLINE | ID: mdl-29238760

ABSTRACT

Dinutuximab is a monoclonal antibody targeted at disialoganglioside (GD2), a tumor-associated antigen widely expressed in human neuroblastoma cells. The incorporation of dinutuximab into standard treatment regimens for patients with high-risk neuroblastoma has changed the landscape of neuroblastoma therapy. Dinutuximab has shown to be effective in prolonging survival for patients receiving standard multimodal treatment regimens and has now become standard of care during the final phase of treatment. More recently, it has also shown promising efficacy and tolerability in patients with relapsed or progressive neuroblastoma. The most effective way of incorporating dinutuximab into treatment protocols is still being explored, and is the focus of numerous ongoing clinical trials.


Subject(s)
Antibodies, Monoclonal/administration & dosage , Antineoplastic Agents/administration & dosage , Neuroblastoma/drug therapy , Animals , Antibodies, Monoclonal/adverse effects , Antibodies, Monoclonal/pharmacology , Antineoplastic Agents/adverse effects , Antineoplastic Agents/pharmacology , Child , Humans , Neoplasm Recurrence, Local , Survival Rate
3.
Psychol Med ; 47(15): 2720-2730, 2017 Nov.
Article in English | MEDLINE | ID: mdl-28866988

ABSTRACT

BACKGROUND: Cognitive remediation (CR) is a psychological therapy, which improves cognitive and social functioning in people with schizophrenia. It is now being implemented within routine clinical services and mechanisms of change are being explored. We designed a new generation computerised CR programme, CIRCuiTS (Computerised Interactive Remediation of Cognition - a Training for Schizophrenia), to enhance strategic and metacognitive processing, with an integrated focus on the transfer of cognitive skills to daily living. This large trial tested its feasibility to be delivered in therapist-led and independent sessions, and its efficacy for improved cognitive and social functioning. METHODS: A two arm single blind randomised superiority trial comparing CIRCuiTS plus treatment-as-usual (TAU) with TAU alone in 93 people with a diagnosis of schizophrenia. Cognitive, social functioning and symptom outcomes were assessed at pre- and post-therapy and 3 months later. RESULTS: 85% adhered to CIRCuiTS, completing a median of 28 sessions. There were significant improvements in visual memory at post-treatment (p = 0.009) and follow-up (p = 0.001), and a trend for improvements in executive function at post-treatment (p = 0.056) in favour of the CIRCuiTS group. Community function was also differentially and significantly improved in the CIRCuiTS group at post-treatment (p = 0.003) but not follow-up, and was specifically predicted by improved executive functions. CONCLUSIONS: CIRCuiTS was beneficial for improving memory and social functioning. Improved executive functioning emerges as a consistent predictor of functional gains and should be considered an important CR target to achieve functional change. A larger-scale effectiveness trial of CIRCuiTS is now indicated.

4.
Eur Psychiatry ; 42: 1-7, 2017 05.
Article in English | MEDLINE | ID: mdl-28199868

ABSTRACT

BACKGROUND: In recent years the association between sexual dysfunction (SD) and obesity in the general population has drawn major attention. Although sexual dysfunction is common in psychosis, its relationship with weight gain and obesity remains unclear. AIMS: To investigate the association between sexual dysfunction and obesity in a cohort of patients with first episode psychosis. METHOD: Sexual function was assessed in a cohort of patients with first episode psychosis using the Sexual Function Questionnaire (SFQ). Anthropometric measures, including weight, BMI, waist, waist-hip ratio were investigated. Additionally, leptin and testosterone were investigated in male patients. RESULTS: A total of 116 patients (61 males and 55 females) were included. Of these 59% of males and 67.3% of females showed sexual dysfunction (SD) according to the SFQ. In males, higher SFQ scores were significantly correlated with higher BMI (Std. ß=0.36, P=0.01), higher leptin levels (Std. ß=0.34, P=0.02), higher waist-hip ratio (Std. ß=0.32, P=0.04) and lower testosterone levels (Std. ß=-0.44, P=0.002). In contrast, in females, SFQ scores were not associated with any of these factors. CONCLUSIONS: While sexual dysfunction is present in both female and male patients with their first episode of psychosis, only in males is sexual dysfunction associated with increased BMI and waist-hip ratio. The association between SD, BMI, low levels of testosterone and high levels of leptin suggest that policies that lead to healthier diets and more active lifestyles can be beneficial at least, to male patients.


Subject(s)
Obesity, Abdominal/complications , Psychotic Disorders/complications , Sexual Dysfunctions, Psychological/etiology , Adult , Body Mass Index , Body Weight , Female , Humans , Male , Middle Aged , Obesity/complications , Weight Gain
5.
Eur Psychiatry ; 34: 1-8, 2016 Apr.
Article in English | MEDLINE | ID: mdl-26928340

ABSTRACT

BACKGROUND: Therapeutic relationships are a central component of community treatment for psychosis and thought to influence clinical and social outcomes, yet there is limited research regarding the potential influence of professional characteristics on positive therapeutic relationships in community care. It was hypothesised that professionals' relating style and attitudes toward their work might be important, and thus this exploratory study modelled associations between these characteristics and therapeutic relationships developed in community psychosis treatment. METHODS: Dyads of professionals and young patients with psychosis rated their therapeutic relationships with each other. Professionals also completed measures of attachment style, therapeutic optimism, outcome expectancy, and job attitudes regarding working with psychosis. RESULTS: Professionals' anxious attachment predicted less positive professional therapeutic relationship ratings. In exploratory directed path analysis, data also supported indirect effects, whereby anxious professional attachment predicts less positive therapeutic relationships through reduced professional therapeutic optimism and less positive job attitudes. CONCLUSIONS: Professional anxious attachment style is directly associated with the therapeutic relationship in psychosis, and indirectly associated through therapeutic optimism and job attitudes. Thus, intervening in professional characteristics could offer an opportunity to limit the impact of insecure attachment on therapeutic relationships in psychosis.


Subject(s)
Attitude of Health Personnel , Object Attachment , Professional-Patient Relations , Psychotic Disorders/therapy , Adult , Community Mental Health Services , Female , Humans , Male , Patient Satisfaction , Psychotic Disorders/psychology , Young Adult
6.
BMC Psychiatry ; 16: 76, 2016 Mar 22.
Article in English | MEDLINE | ID: mdl-27000113

ABSTRACT

BACKGROUND: Suboptimal vitamin D levels have been identified in populations with psychotic disorders. We sought to explore the relationship between vitamin D deficiency, clinical characteristics and cardiovascular disease risk factors among people with established psychosis. METHODS: Vitamin D levels were measured in 324 community dwelling individuals in England with established psychotic disorders, along with measures of mental health, cardiovascular risk and lifestyle choices. Vitamin D deficiency was defined as serum 25-hydroxyvitamin D (25-OHD) levels below 10 ng/ml (equivalent to <25 nmol/L) and "sufficient" Vitamin D as above 30 ng/ml (>50 nmol/L). RESULTS: The mean 25-OHD serum level was 12.4 (SD 7.3) ng/ml, (range 4.0-51.7 ng/ml). Forty nine percent (n = 158) were vitamin D deficient, with only 14 % (n = 45) meeting criteria for sufficiency. Accounting for age, gender, ethnicity and season of sampling, serum 25-OHD levels were negatively correlated with waist circumference (r = -0.220, p < 0.002), triglycerides (r = -0.160, p = 0.024), total cholesterol (r = -0.144, p = 0.043), fasting glucose (r = -0.191, p = 0.007), HbA1c (r = -0.183, p = 0.01), and serum CRP levels (r = -0.211, p = 0.003) and were linked to the presence of metabolic syndrome. CONCLUSIONS: This is the largest cross sectional study of serum 25-OHD levels in community dwelling individuals with established psychosis, indicating a high level of vitamin D deficiency. Lower vitamin D levels are associated with increased cardiovascular disease risk factors and in particular metabolic syndrome. Further research is needed to define appropriate protocols for vitamin D testing and supplementation in practice to see if this can improve cardiovascular disease risk. TRIAL REGISTRATION: ISRCTN number is ISRCTN58667926 Date of registration: 23/04/2010.


Subject(s)
Psychotic Disorders/blood , Psychotic Disorders/epidemiology , Vitamin D Deficiency/blood , Vitamin D Deficiency/epidemiology , Adult , Cardiovascular Diseases/blood , Cardiovascular Diseases/epidemiology , Cholesterol/blood , Comorbidity , Cross-Sectional Studies , England , Female , Humans , Male , Metabolic Syndrome/blood , Metabolic Syndrome/epidemiology , Prevalence , Risk Factors , Triglycerides/blood , Vitamin D/analogs & derivatives , Vitamin D/blood
7.
Psychol Med ; 45(12): 2631, 2015.
Article in English | MEDLINE | ID: mdl-26165543

ABSTRACT

The author regrets to announce that affiliation 8, in the above article (Gardner-Sood et al. 2015), contained an error in the author affiliation address and author surname, which were published in the approved article. The correct surname and affiliation address are given below. J. Eberhard, Clinical Psychiatric Research Center, Lund University, Skåne, Sweden

8.
Psychol Med ; 45(12): 2619-29, 2015.
Article in English | MEDLINE | ID: mdl-25961431

ABSTRACT

BACKGROUND: The aims of the study were to determine the prevalence of cardiometabolic risk factors and establish the proportion of people with psychosis meeting criteria for the metabolic syndrome (MetS). The study also aimed to identify the key lifestyle behaviours associated with increased risk of the MetS and to investigate whether the MetS is associated with illness severity and degree of functional impairment. METHOD: Baseline data were collected as part of a large randomized controlled trial (IMPaCT RCT). The study took place within community mental health teams in five Mental Health NHS Trusts in urban and rural locations across England. A total of 450 randomly selected out-patients, aged 18-65 years, with an established psychotic illness were recruited. We ascertained the prevalence rates of cardiometabolic risk factors, illness severity and functional impairment and calculated rates of the MetS, using International Diabetes Federation (IDF) and National Cholesterol Education Program Third Adult Treatment Panel criteria. RESULTS: High rates of cardiometabolic risk factors were found. Nearly all women and most men had waist circumference exceeding the IDF threshold for central obesity. Half the sample was obese (body mass index ≥ 30 kg/m2) and a fifth met the criteria for type 2 diabetes mellitus. Females were more likely to be obese than males (61% v. 42%, p < 0.001). Of the 308 patients with complete laboratory measures, 57% (n = 175) met the IDF criteria for the MetS. CONCLUSIONS: In the UK, the prevalence of cardiometabolic risk factors in individuals with psychotic illnesses is much higher than that observed in national general population studies as well as in most international studies of patients with psychosis.


Subject(s)
Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/psychology , Mental Disorders/epidemiology , Metabolic Syndrome/epidemiology , Metabolic Syndrome/psychology , Adolescent , Adult , Aged , Benzodiazepines/adverse effects , Benzodiazepines/therapeutic use , Cardiovascular Diseases/etiology , Community Mental Health Centers , Diabetes Mellitus, Type 2/epidemiology , England/epidemiology , Female , Humans , Male , Mental Disorders/diagnosis , Mental Disorders/drug therapy , Middle Aged , Obesity/epidemiology , Prevalence , Risk Factors , Rural Population , Sex Distribution , State Medicine , Urban Population , Young Adult
9.
Eur Psychiatry ; 30(1): 152-9, 2015 Jan.
Article in English | MEDLINE | ID: mdl-25541346

ABSTRACT

BACKGROUND: Why patients with psychosis use cannabis remains debated. The self-medication hypothesis has received some support but other evidence points towards an alleviation of dysphoria model. This study investigated the reasons for cannabis use in first-episode psychosis (FEP) and whether strength in their endorsement changed over time. METHODS: FEP inpatients and outpatients at the South London and Maudsley, Oxleas and Sussex NHS Trusts UK, who used cannabis, rated their motives at baseline (n=69), 3 months (n=29) and 12 months (n=36). A random intercept model was used to test the change in strength of endorsement over the 12 months. Paired-sample t-tests assessed the differences in mean scores between the five subscales on the Reasons for Use Scale (enhancement, social motive, coping with unpleasant affect, conformity and acceptance and relief of positive symptoms and side effects), at each time-point. RESULTS: Time had a significant effect on scores when controlling for reason; average scores on each subscale were higher at baseline than at 3 months and 12 months. At each time-point, patients endorsed 'enhancement' followed by 'coping with unpleasant affect' and 'social motive' more highly for their cannabis use than any other reason. 'Conformity and acceptance' followed closely. 'Relief of positive symptoms and side effects' was the least endorsed motive. CONCLUSIONS: Patients endorsed their reasons for use at 3 months and 12 months less strongly than at baseline. Little support for the self-medication or alleviation of dysphoria models was found. Rather, patients rated 'enhancement' most highly for their cannabis use.


Subject(s)
Marijuana Abuse/psychology , Marijuana Smoking/psychology , Psychotic Disorders/diagnosis , Psychotic Disorders/psychology , Adaptation, Psychological , Adult , Aged , England/epidemiology , Female , Humans , Male , Middle Aged , Motivation , Social Behavior
10.
J Psychiatr Ment Health Nurs ; 21(2): 121-7, 2014 Mar.
Article in English | MEDLINE | ID: mdl-23676123

ABSTRACT

BACKGROUND: People with serious mental illness (SMI) are at increased risk of developing various physical health diseases, contributing to significantly reduced life expectancies compared with the general population. In light of this, the Department of Health have set the physical health of people with mental health problems as a priority for improvement. Additionally, the UK government encourages the NHS and local authorities to develop health promotion programmes (HPPs) for people with SMI. AIMS: To document how many and what types of HPPs were available to people with SMI across four South London boroughs, UK. RESULTS: We found 145 HPPs were available to people with SMI across the four boroughs, but with an inequitable distribution. We also found that certain HPPs set admission criteria that were likely to act as a barrier to improving health. CONCLUSIONS: A more integrated approach of documenting and providing information regarding the provision of HPPs for or inclusive of people with SMI is needed. ABSTRACT: People with serious mental illness (SMI) such as schizophrenia, schizoaffective disorders and bipolar disorder are at increased risk of developing diabetes, cardiovascular disease and respiratory disease, contributing to significantly reduced life expectancies. As a result, emphasis has been placed on developing Health Promotion Programmes (HPPs) to modify the risk of poor physical health in SMI. We examined how many and what types of HPPs are available for or inclusive of people with SMI across four borough in South London, UK. A cross-sectional mapping study was carried out to identify the number of HPPs available to people with SMI. We found 145 HPPs available to people with SMI existed across the four boroughs but with an inequitable distribution, which in some boroughs we anticipate may not meet need. In some cases, HPPs set admission conditions which were likely to further impede access. We recommend that accurate and readily available information on the provision of HPPs for or inclusive of people with SMI is needed.


Subject(s)
Health Promotion/statistics & numerical data , Health Status , Mentally Ill Persons/statistics & numerical data , Program Development/statistics & numerical data , State Medicine/statistics & numerical data , Humans , London
11.
Cogn Neuropsychiatry ; 17(3): 227-45, 2012 May.
Article in English | MEDLINE | ID: mdl-21929281

ABSTRACT

INTRODUCTION: Research has suggested an association between personality factors and awareness in patients with dementia, yet valid measurement of premorbid personality is problematic. The present study aimed to better reveal the relationship between premorbid personality and awareness by using improved methodology. Moreover, the study aims to contrast the strength of the relationship of premorbid personality and awareness with that of cognitive factors. METHODS: Awareness of illness, symptoms, mnemonic and behavioural impairments, and treatment compliance were measured in 27 patients with mild-to-moderate Alzheimer's disease (AD) diagnosed by standard criteria for probable AD. Participant premorbid personality was measured using average retrospective Neuroticism-Extroversion-Openness Inventory (NEO-FFI) scores from two informants. Correlations were performed to investigate the relationship between awareness and personality dimensions, as well as measures of cognitive style, neuropsychological function, mood, carer burden, and sociodemographic factors. RESULTS: There was little relationship between awareness and personality scores, but modest associations between awareness and mood, age, and age of onset of first symptoms. Awareness of memory was related to memory functioning. Increased carer burden was associated with lack of awareness of cognitive-behavioural deficits but there were only few and weak associations between awareness and measures of cognitive functioning. CONCLUSIONS: There was little support for an association between previous personality and awareness in dementia. However, increased carer burden was associated specifically with lack of awareness of cognitive-behavioural deficits not deficits in ADL, whereas lower awareness of ADL and not cognitive-behavioural deficits was associated with age. Awareness of memory appeared to be a metamemory capacity. Mood and age rather than personality and cognition are stronger predictors of awareness in early Alzheimer's disease.


Subject(s)
Alzheimer Disease/psychology , Awareness/physiology , Cognition/physiology , Memory/physiology , Personality/physiology , Self Concept , Affect , Aged , Aged, 80 and over , Cross-Sectional Studies , Female , Humans , Male , Neuropsychological Tests , Personality Inventory , Severity of Illness Index
12.
Psychol Med ; 42(5): 1013-23, 2012 May.
Article in English | MEDLINE | ID: mdl-21910936

ABSTRACT

BACKGROUND: Psychological models of psychosis were examined using Experience Sampling Methods (ESM) to explore relationships between dimensions and appraisals of key symptoms and affect. METHOD: Individuals were signalled to complete ESM booklets 10 times per day for six consecutive days; 534 data points were obtained from 12 out-patients with psychosis. RESULTS: Although only 3.6% of spontaneous thoughts were psychosis related, these predicted more negative and less positive affect. Delusions and hallucinations, when present, were rated at a moderate level of intensity, and intensity was associated with distress, interference and preoccupation. Symptom dimensions were related to each other, with weaker associations with delusional conviction, which, it is hypothesized, may represent a separate factor. Conviction and appraisals relating to insight and decentring ('my problems are something to do with the way my mind works') were highly variable. Decentring appraisals of delusions, but not insight, were associated with less distress. Appraisals about the power of voices were strong predictors of negative affect and symptom distress. CONCLUSIONS: This study demonstrates that ESM is a useful methodology to capture 'online' variability in psychotic phenomenology and provides evidence supporting cognitive models, which posit that psychotic symptoms are multi-dimensional phenomena, shaped by appraisals that, in turn, predict their emotional and behavioural sequelae.


Subject(s)
Activities of Daily Living/psychology , Affect , Psychotic Disorders/diagnosis , Psychotic Disorders/psychology , Self Report , Adult , Delusions/diagnosis , Delusions/psychology , Female , Hallucinations/diagnosis , Hallucinations/psychology , Humans , Male , Models, Psychological , Psychiatric Status Rating Scales/statistics & numerical data , Severity of Illness Index
13.
Schizophr Bull ; 37(1): 61-72, 2011 Jan.
Article in English | MEDLINE | ID: mdl-20851850

ABSTRACT

Patients with schizophrenia are often characterized as lacking insight or awareness into their illness and symptoms, yet despite considerable research, we still lack a full understanding of the factors involved in causing poor awareness. Within schizophrenia, there has been shown to be a fractionation across dimensions of awareness into mental illness: of being ill, of symptoms, and of treatment compliance. Recently, attention has turned to evidence of a fractionation between awareness of illness and of cognitive impairments and functioning. The current study investigated the degree of fractionation across a broad range of domains of function in schizophrenia and how each domain may be associated with neuropsychological functioning, clinical, mood, and demographic variables. Thirty-one mostly chronic stable patients with schizophrenia completed a battery of neuropsychological tests and measures of psychopathology, including mood. Cognitive insight and awareness of illness, symptoms, memory, and behavioral functioning were also measured. Insight and awareness were assessed using a combination of semistructured interview, observer-rated, self-rated, and objective measures, and included measures of the discrepancy between carer and self-ratings of impairment. Results revealed that awareness of functioning in each domain was largely independent and that awareness in each domain was predicted by different factors. Insight into symptoms was relatively poor while insight into cognitive deficits was preserved. Relative to neuropsychological variables, cognitive insight, comprising self-certainty and self-reflexivity, was a greater predictor of awareness. In conclusion, awareness is multiply fractionated and multiply determined. Therapeutic interventions could, therefore, produce beneficial changes within specific domains of awareness.


Subject(s)
Awareness , Schizophrenic Psychology , Self Concept , Adult , Affect , Attention , Cognition , Female , Humans , Male , Memory , Middle Aged , Neuropsychological Tests , Psychiatric Status Rating Scales , Schizophrenia/diagnosis
14.
J Dairy Sci ; 92(9): 4481-8, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19700709

ABSTRACT

Subacute ruminal acidosis reduces lactation performance in dairy cattle and most often occurs in animals fed a high concentrate:forage ration with large amounts of readily fermentable starch, which results in increased production of volatile fatty acids and lactic acid and a reduction in ruminal pH. Acarbose is commercially available (Glucobay, Bayer, Wuppertal, Germany) and indicated for the control of blood glucose in diabetic patients. In cattle, acarbose acts as an alpha-amylase and glucosidase inhibitor that slows the rate of degradation of starch to glucose, thereby reducing the rate of volatile fatty acid production and maintaining rumen pH at higher levels. The ability of acarbose to reverse the reduced feed intake and milk fat percentage and yield associated with a high concentrate:forage ration with a high risk of inducing subacute ruminal acidosis was evaluated in 2 experiments with lactating dairy cattle. In 2 preliminary experiments, the effects of a 70:30 concentrate:forage ration on ruminal pH and lactation were evaluated. Ruminal pH was monitored in 5 Holstein steers with ruminal cannulas every 10 min for 5 d. Ruminal pH was <5.5 for at least 4 h in 79% of the animal days. In dairy cows, the 70:30 concentrate:forage ration decreased feed intake 5%, milk fat percentage 7%, and milk fat yield 8% compared with a 50:50 concentrate:forage ration but did not affect milk yield. Early lactating dairy cattle were offered the 70:30 concentrate:forage ration with 0 or 0.75 g/d of acarbose added in a crossover design in 2 experiments. In the first experiment, acarbose increased dry matter feed intake (23.1 vs. 21.6 kg/d) and 3.5% fat-corrected milk yield (33.7 vs. 31.7 kg/d) because of an increase in percentage milk fat (3.33 vs. 3.04%) compared with control cows. In the second experiment, cows were fasted for 3 h before the morning feeding to induce consumption of a large meal to mimic conditions that might be associated with unplanned delayed feeding. In this experiment, acarbose also increased feed intake (22.5 vs. 21.8 kg/d) and 3.5% fat-corrected milk yield (36.9 vs. 33.9 kg/d) due to increased percentage milk fat (3.14 vs. 2.66%) compared with controls. Thus, acarbose reversed the decreased feed intake and low milk fat percentage and yield associated with feeding a high concentrate:forage ration shown to induce subacute ruminal acidosis in Holstein steers.


Subject(s)
Acarbose/pharmacology , Acidosis/veterinary , Diet/veterinary , Lactation/drug effects , Milk , Rumen/metabolism , Stomach Diseases/veterinary , Animals , Body Weight/drug effects , Cattle , Cattle Diseases/metabolism , Dairying , Eating/drug effects , Female , Hydrogen-Ion Concentration , Hypoglycemic Agents/pharmacology , Least-Squares Analysis , Male , Milk/chemistry , Milk/metabolism , Rumen/chemistry
15.
J Dairy Sci ; 92(6): 2758-66, 2009 Jun.
Article in English | MEDLINE | ID: mdl-19448010

ABSTRACT

A challenge model was used to evaluate a new approach to controlling acute acidosis. Acute acidosis reduces performance in both dairy and beef cattle and most often occurs as a consequence of ingestion of large amounts of readily fermentable starch, resulting in increased production of volatile fatty acids (VFA) and lactic acid and a reduction in ruminal pH. Acarbose is an alpha-amylase and glucosidase inhibitor that slows the rate of degradation of starch to glucose, thereby reducing the rate of VFA production and maintaining rumen pH at a more stable level. It is commercially available (Glucobay, Bayer, Wuppertal, Germany) and indicated for the control of blood glucose in diabetic patients. The ability of acarbose to reduce the incidence of acidosis and the comparative efficacies of acarbose, sodium bicarbonate, and monensin were tested in 3 acute acidosis challenge experiments in cattle. Rumen-cannulated Holstein steers were challenged with a mixture of 48.4% cornstarch, 48.4% ground corn, 2.1% sodium caseinate, and 1.1% urea with or without test substance. The challenge was administered at a rate of 12.5 g/kg of body weight (BW) as a slurry through the cannula directly into the rumen. Ruminal pH was monitored at 10-min intervals throughout the study. Animals were removed from study and rumen contents replaced if they exhibited acute acidosis as defined as pH <4.5. If acidosis was not observed within 24 h, animals were subjected to a second challenge. Ruminal fluid samples were taken for measurement of VFA and lactate concentrations at various intervals after the challenge. In experiment 1, the carbohydrate challenge induced acidosis in 4 of 4 control animals and 0 of 4 animals treated with 2.14 or 21.4 mg of acarbose/kg of BW in the challenge based on the criterion of pH <4.5. In experiment 2, the carbohydrate challenge induced acidosis in 4 of 7 control animals and 1 of 7 animals when 1.07 mg of acarbose/kg of BW was included in the challenge. In experiment 3, acidosis was induced in 7 of 7 animals in the control, 1% sodium bicarbonate, and 12 mg of monensin/kg of dry matter intake groups and in 3 of 8 steers administered 1.07 mg of acarbose/kg of BW in the challenge. Increases in lactate concentrations and decreases in total VFA associated with acute acidosis were mitigated by acarbose. Thus, acarbose, an amylase and glucosidase inhibitor, prevented or reduced the incidence of acidosis in an acute challenge model in steers and was more effective than monensin or sodium bicarbonate.


Subject(s)
Acarbose/therapeutic use , Acidosis/veterinary , Cattle Diseases/drug therapy , Hypoglycemic Agents/therapeutic use , Acarbose/pharmacology , Acidosis/drug therapy , Acute Disease , Animals , Cattle , Dietary Carbohydrates/administration & dosage , Eating/drug effects , Fatty Acids, Volatile/analysis , Gastrointestinal Contents/chemistry , Hydrogen-Ion Concentration , Hypoglycemic Agents/pharmacology , Lactic Acid/analysis , Male , Random Allocation , Time Factors
16.
Brain Inj ; 19(11): 925-32, 2005 Oct.
Article in English | MEDLINE | ID: mdl-16243748

ABSTRACT

PRIMARY OBJECTIVE: To generate a comprehensive list of items for a scale suitable for assessing high-level mobility in people with traumatic brain injury (TBI). RESEARCH DESIGN: High-level mobility items were generated following a critical evaluation of existing adult and paediatric mobility scales and by surveying expert clinicians for opinions about items appropriate for inclusion on a high-level mobility scale. MAIN OUTCOMES AND RESULTS: The critical evaluation identified 18 different items from 31 mobility scales. These included nine walking items in addition to higher level activities such as stair use, running, jumping and hopping. Expert clinicians generated 157 items that were collated and condensed to 88 items for ranking on a questionnaire. Fifteen items on the questionnaire were rated as very important by 80% of the expert clinicians. These included walking forwards, walking on slopes and different surfaces, changing direction, walking long distances and stair use. Running items included forwards, backwards, on slopes and over different surfaces, changing direction, stopping and starting as well as running long distances. Balancing in single limb stance was also included. CONCLUSION: The final list comprised walking, running, hopping, skipping, jumping and balance items. This initial version of the HiMAT has face and content validity although requires further testing to investigate whether it is uni-dimensional and valid for people with TBI.


Subject(s)
Brain Injuries/physiopathology , Brain Injuries/rehabilitation , Health Status Indicators , Movement , Activities of Daily Living , Adult , Child , Humans , Postural Balance , Reproducibility of Results , Running , Surveys and Questionnaires , Walking
17.
Brain Inj ; 19(10): 833-43, 2005 Sep.
Article in English | MEDLINE | ID: mdl-16175843

ABSTRACT

PRIMARY OBJECTIVES: (i) To assess the measurement properties of the high-level mobility assessment tool (HiMAT) for people with traumatic brain injury (TBI), (ii) to measure the extent to which the HiMAT is a uni-dimensional, discriminative hierarchical outcome scale. RESEARCH DESIGN: The content validity was assessed using a three-stage process of investigating internal consistency, factor analysis and Rasch analysis. The uni-dimensionality of the HiMAT items was also tested. Discriminability was investigated by correlating raw and logit scores obtained from Rasch analysis. The study was conducted at a major rehabilitation facility using a convenience sample of 103 adults with TBI. MAIN OUTCOMES AND RESULTS: The internal consistency for the high-level items was very high (Cronbach's alpha = 0.99). Principal axis factoring identified several balance items as belonging to a second factor not related to high-level mobility, hence these items were excluded. Rasch analysis identified several misfitting items, such as walking around a figure of eight and stopping from a run, which were also excluded. Logit scores were used to exclude clustered and, therefore, redundant items. Raw scores correlated very highly (r = 0.98) with logit scores, indicating that raw scores provided good discriminability and were suitable for use by clinicians. CONCLUSION: The HiMAT, which assesses higher-level mobility requirements of people with TBI for return to pre-accident social, leisure and sporting activities, is a uni-dimensional and discriminative scale for quantifying therapy outcomes.


Subject(s)
Brain Injuries/diagnosis , Movement Disorders/diagnosis , Outcome Assessment, Health Care/methods , Adult , Brain Injuries/rehabilitation , Female , Gait , Humans , Male , Reproducibility of Results , Sensitivity and Specificity
18.
Parasitology ; 131 Suppl: S169-77, 2005.
Article in English | MEDLINE | ID: mdl-16569288

ABSTRACT

This review addresses the potential use of neuropeptide receptors for the discovery of anthelmintic agents, and particularly for the identification of non-peptide ligands. It outlines which nematode neuropeptides are known and have been characterized, the published information on drug discovery around these targets, information about existing high- and low-throughput screening systems and finally the likely safety of neuropeptide mimetics.


Subject(s)
Anthelmintics/pharmacology , Nematoda/physiology , Receptors, Neuropeptide/drug effects , Receptors, Neuropeptide/metabolism , Animals , Drug Evaluation, Preclinical , Drug-Related Side Effects and Adverse Reactions , Ligands , Nematoda/drug effects , Nerve Tissue Proteins/metabolism , Neuropeptides/physiology
19.
Clin Rehabil ; 17(5): 558-64, 2003 Aug.
Article in English | MEDLINE | ID: mdl-12952164

ABSTRACT

OBJECTIVE: A new scale, the Mobility Scale for Acute Stroke Patients (MSAS), was developed to specifically discriminate between the lower levels of mobility found in acute stroke patients in the first two weeks post onset. The aim of this study was to investigate the concurrent validity of this new scale with other established scales. MAIN OUTCOME MEASURES: Concurrent validity was assessed with respect to four other well-validated measures: Motor Assessment Scale (MAS), Functional Ambulation Classification system (FAC), Functional Independence Measure (FIM), and Barthel Index (BI). The measures selected for comparison contained items similar to those in the MSAS. SUBJECTS: From a total of 539 patients who were admitted over a two-year period with a primary diagnosis of stroke, 106 satisfied the criteria for inclusion in this study. RESULTS: The MSAS was found to have a high level of concurrent validity (r > 0.80) when the total score was correlated with the total scores of the MAS, FAC, FIM (mobility and ADL) and BI. A high level of association was found between the nonbed mobility items (sit to stand, stand and walk) of the MSAS and the mobility items (toileting, transfers, walk and stairs) of the FIM and BI. There was a weaker association between the MSAS items and the ADL items (activities of daily living) of the BI and FIM. CONCLUSION: A new scale designed specifically for acute stroke patients was found to have a high degree of concurrent validity when compared with four other scales containing similar items.


Subject(s)
Activities of Daily Living , Disability Evaluation , Motor Activity , Stroke/classification , Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Reproducibility of Results , Severity of Illness Index , Stroke Rehabilitation
20.
Health Serv J ; 111(5773): 26-7, 2001 Sep 20.
Article in English | MEDLINE | ID: mdl-11586780

ABSTRACT

Preparations for developing a standard induction programme across 15 trusts for overseas nurses in Manchester revealed a wide variation in the terms and conditions on which nurses were being employed. Some nurses were not paid at all, others were paid as auxiliaries and some were paid as staff nurses. Some induction programmes in operation lasted a couple of days, others three or four weeks. There should be a minimum two-week induction period. The standard programme developed for the area recommends that overseas nurses should be paid a minimum of 12,000 Pounds.


Subject(s)
Nurses/supply & distribution , Personnel Selection , State Medicine/organization & administration , Foreign Professional Personnel , Salaries and Fringe Benefits , United Kingdom
SELECTION OF CITATIONS
SEARCH DETAIL
...