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1.
Res Dev Disabil ; 128: 104274, 2022 Sep.
Article in English | MEDLINE | ID: mdl-35753167

ABSTRACT

BACKGROUND: Parents of children with developmental disabilities (DD) have diverse challenges and needs. If met, these parents are able to provide adequate care for their children. Unfulfilled needs like information about their child's diagnosis, counselling, and poor access to informal and formal supports increase parental stress and hinder their potential to provide optimal care for their children and themselves. AIMS: This study explores the unique challenges and needs of parents caring for children with DD in the Accra metropolis. This is the first study exploring the needs of parents in a Lower-middle income (LMIC) country like Ghana. METHODS AND PROCEDURES: A qualitative research design was adopted for this study. Data was collected using semi-structured interviews from 9 parents of children with DD. RESULTS: Findings from thematic analysis revealed five themes including; Emotional needs; Informational needs; Financial needs; Informal Support, and Formalized Support. Parents indicated their great need for information on their children's condition, support from family, religious groups, and other formalized institutions and how to provide better care. CONCLUSIONS AND IMPLICATIONS: Parents have several expectations and needs which must be addressed. Findings have the potential of influencing the design and development of appropriate interventions to meet the needs and improve the quality of life of parents of children with DD in the Ghanaian context.


Subject(s)
Developmental Disabilities , Quality of Life , Child , Ghana , Humans , Parents/psychology , Qualitative Research
2.
Clin Med Insights Circ Respir Pulm Med ; 15: 11795484211039830, 2021.
Article in English | MEDLINE | ID: mdl-34566441

ABSTRACT

BACKGROUND: Apart from increasing the risk of tuberculosis (TB), diabetes may be associated with more severe disease and lower rates of sputum conversion among TB patients. METHODS: We conducted a baseline cross-sectional study with a longitudinal follow-up of newly diagnosed smear-positive TB patients for 6 months. Sputum conversion rates between those with dysglycemia and those without were compared at 2 months (end of the intensive phase) and 6 months (end of the treatment). Descriptive statistics and logistic regression were computed to assess factors associated with dysglycemia as well as sputum conversion. RESULTS: A significantly higher proportion of normoglycemic patients had negative sputum compared with those with dysglycemia (83% vs 67%, P-value < .05) at 2 months but not at 6 months (87% vs 77%, P-value > .05). After controlling for age group and adjusting for other covariates, patients with dysglycemia were 66% less likely to convert sputum than those with normoglycemia. Females were at least 7 times more likely than males and those with high waist-to-hip ratio (WHR) of 88% were less likely compared with those with low WHR for sputum conversion at 2 months, respectively. At 6 months, females (compared with males) and those with high WHR (compared with those with normal WHR) were at over 9 times increased odds and 89% less likely for sputum conversion, respectively. CONCLUSION: A significantly lower proportion of smear-positive TB patients with dysglycemia converted to smear negative after 2 months of treatment but not at the end of the treatment, thus suggesting a transient impact of dysglycemia on sputum conversion.

3.
BMC Nephrol ; 22(1): 129, 2021 04 13.
Article in English | MEDLINE | ID: mdl-33849488

ABSTRACT

BACKGROUND: The burden of chronic kidney disease in Africa is three to four times higher compared to high-income countries and the cost of treatment is beyond the reach of most affected persons. The best treatment for end stage renal disease is kidney transplantation which is not available in most African countries. As kidney transplantation surgery is emerging in Ghana, this study assessed factors which could influence the willingness of patients with chronic kidney disease to accept it as a mode of treatment. METHODS: This cross-sectional survey was carried out among patients with chronic kidney disease in Korle-Bu Teaching Hospital. A consecutive sampling method was used to recruit consenting patients. A structured questionnaire and standardized research instruments were used to obtain information on demographic, socio-economic characteristics, knowledge about transplantation, perception of transplantation, religiosity and spirituality. Logistic regression model was used to assess the determinants of willingness to accept a kidney transplant. RESULTS: 342 CKD patients participated in the study of which 56.7% (n = 194) were male. The mean age of the participants was 50.24 ± 17.08 years. The proportion of participants who were willing to accept a kidney transplant was 67.3% (95%CI: 62.0-72.2%). The factors which influenced participants' willingness to accept this treatment included; willingness to attend a class on kidney transplantation (p < 0.016), willingness to donate a kidney if they had the chance (p < 0.005), perception that a living person could donate a kidney (p < 0.001) and perceived improvement in quality of life after transplantation (p < 0.005). The barriers for accepting kidney transplantation were anticipated complications of transplant surgery and financial constraints. CONCLUSION: More than two-thirds of CKD patients were willing to accept a kidney transplant and this is influenced by multiple factors. Government health agencies must consider full or partial coverage of kidney transplantation through the existing national health insurance scheme. Further, efficient educational programmes are required to improve both patients' and physicians' knowledge on the importance of kidney transplantation in the management of end stage renal disease in Ghana.


Subject(s)
Health Knowledge, Attitudes, Practice , Kidney Failure, Chronic/surgery , Kidney Transplantation , Patient Acceptance of Health Care/psychology , Adult , Aged , Aged, 80 and over , Cost of Illness , Female , Ghana , Health Care Costs , Health Surveys , Humans , Kidney Failure, Chronic/psychology , Kidney Transplantation/adverse effects , Kidney Transplantation/economics , Male , Middle Aged , Patient Education as Topic , Postoperative Complications , Quality of Life , Tissue and Organ Procurement , Young Adult
4.
PLoS One ; 15(12): e0244437, 2020.
Article in English | MEDLINE | ID: mdl-33378327

ABSTRACT

BACKGROUND: Kidney transplantation is the preferred treatment for patients with end stage renal disease. However, it is largely unavailable in many sub-Sahara African countries including Ghana. In Ghana, treatment for end stage renal disease including transplantation, is usually financed out-of-pocket. As efforts continue to be made to expand the kidney transplantation programme in Ghana, it remains unclear whether patients with Chronic Kidney Disease (CKD) would be willing to pay for a kidney transplant. AIM: The aim of the study was to assess CKD patients' willingness to pay for kidney transplantation as a treatment option for end stage renal disease in Ghana. METHODS: A facility based cross-sectional study conducted at the Renal Outpatient clinic and Dialysis Unit of Korle-Bu Teaching Hospital among 342 CKD patients 18 years and above including those receiving haemodialysis. A consecutive sampling approach was used to recruit patients. Structured questionnaires were administered to obtain information on demographic, socio-economic, knowledge about transplant, perception of transplantation and willingness to pay for transplant. In addition, the INSPIRIT questionnaire was used to assess patients' level of religiosity and spirituality. Contingent valuation method (CVM) method was used to assess willingness to pay (WTP) for kidney transplantation. Logistic regression model was used to determine the significant predictors of WTP. RESULTS: The average age of respondents was 50.2 ± 17.1 years with most (56.7% (194/342) being male. Overall, 90 out of the 342 study participants (26.3%, 95%CI: 21.7-31.3%) were willing to pay for a kidney transplant at the current going price (≥ $ 17,550) or more. The median amount participants were willing to pay below the current price was $986 (IQR: $197 -$1972). Among those willing to accept (67.3%, 230/342), 29.1% (67/230) were willing to pay for kidney transplant at the prevailing price. Wealth quintile, social support in terms of number of family friends one could talk to about personal issues and number of family members one can call on for help were the only factors identified to be significantly predictive of willingness to pay (p-value < 0.05). CONCLUSION: The overall willingness to pay for kidney transplant is low among chronic kidney disease patients attending Korle-Bu Teaching Hospital. Patients with higher socio-economic status and those with more family members one can call on for help were more likely to pay for kidney transplantation. The study's findings give policy makers an understanding of CKD patients circumstances regarding affordability of the medical management of CKD including kidney transplantation. This can help develop pricing models to attain an ideal poise between a cost effective but sustainable kidney transplant programme and improve patient access to this ultimate treatment option.


Subject(s)
Financing, Personal/statistics & numerical data , Health Expenditures/statistics & numerical data , Health Services Accessibility/economics , Kidney Transplantation/economics , Renal Insufficiency, Chronic/therapy , Adult , Aged , Cross-Sectional Studies , Female , Ghana , Humans , Kidney Transplantation/psychology , Male , Middle Aged , Renal Dialysis , Renal Insufficiency, Chronic/economics , Social Class , Surveys and Questionnaires/statistics & numerical data
5.
Transplant Proc ; 52(10): 2883-2889, 2020 Dec.
Article in English | MEDLINE | ID: mdl-32402460

ABSTRACT

BACKGROUND: The main treatment modalities for chronic kidney disease (CKD) are dialysis and kidney transplantation. While kidney transplantation provides better survival and quality of life outcomes, it is a new treatment option in Ghana. Finding kidney donors for transplant may be a major challenge due to varied views of the public. METHODS: This cross-sectional study was carried out in 5 purposively selected communities in the Greater Accra region in Ghana. Structured questionnaires and standardized instruments were used to assess sociodemographic characteristics, spirituality, and perception of kidney transplantation. RESULTS: The mean age of the 480 participants was 29.60 ± 10.65 years. The proportion of men was 51%. The average score for knowledge of participants on kidney donation was 4.8 ± 2.6. The level of spirituality score was 25.4 ± 3.89. Approximately 48% (231/480) of participants were willing to donate a kidney while still alive. Willingness to donate when dead was 72% (344/480). Willingness to donate a kidney when dead was significantly lower among the participants in the older age groups. High level of knowledge about kidney transplantation, being employed, basic formal education, and never married were associated with willingness to donate kidney (P < .05). CONCLUSION: Our results suggest that participants have a low level of knowledge regarding kidney transplantation, while about two-thirds are willing to donate only after death. Continuous public education is key to raise public awareness of the need for kidney transplants. This will support the Ministry of Health in their efforts to institute a kidney transplant program in Ghana.


Subject(s)
Health Knowledge, Attitudes, Practice , Kidney Transplantation , Tissue Donors/psychology , Adult , Cross-Sectional Studies , Female , Ghana , Humans , Male , Middle Aged , Surveys and Questionnaires
6.
BMC Psychiatry ; 20(1): 143, 2020 04 03.
Article in English | MEDLINE | ID: mdl-32245444

ABSTRACT

BACKGROUND: Diabetes often occurs together with tuberculosis (TB) and both may affect each other negatively. Diabetes may be associated with neurocognitive dysfunctioning in affected patients and may negatively impact treatment adherence and outcomes. This study compared the neurocognitive status between newly diagnosed smear positive tuberculosis patients with dysglycaemia and those with normoglycaemia. METHODS: The current study was a cross-sectional study involving one hundred and forty-six (146) newly diagnosed smear positive TB patients. Oral glucose tolerance test (OGTT) was performed and the results were categorized as either normoglycaemia, impaired glucose tolerance (IGT), impaired fasting glucose (IFG) or diabetes. Neurocognitive functioning among study participants was assessed at the time of TB diagnosis using Cognitive Failure Questionnaire (CFQ), Montreal Cognitive Assessment tool (MoCA), California Verbal Learning Test (CVLT), Brief Symptom Inventory (BSI) and the Spitzer Quality of Life Index (QLI). RESULTS: The mean age of the participants (n = 146) was 38.7 years with 78.8% being males and 21.2% females. Using the fasting blood glucose test, the prevalence of impaired fasting glucose and diabetes were 5.5 and 3.4% respectively, both representing a total of 13 out of the 146 participants; whilst the prevalence of impaired glucose tolerance and diabetes using 2-h post-glucose values were 28.8 and 11.6% respectively, both representing a total of 59 out of the 146 participants. There were no significant differences in the mean scores on the neurocognitive measures between the dysglaycaemia and normoglycamic groups using fasting plasma glucose (FPG). However, there were significant differences in the mean scores between the dysglycaemia and normal groups using 2-h postprandial (2HPP) glucose values on Phobic Anxiety (Normal, Mean = 0.38 ± 0.603; dysglycaemia, Mean = 0.23 ± 0.356; p = 0.045), and Montreal Cognitive Assessment (MoCA) scores (17.26 ± 5.981 vs. 15.04 ± 5.834, p = 0.037). CONCLUSION: Newly diagnosed smear positive patients with dysglycaemia were associated with significantly lower mean cognitive scores and scores on phobic anxiety than those with normoglyacaemia. The latter finding must be further explored.


Subject(s)
Cognitive Dysfunction/epidemiology , Diabetes Mellitus/epidemiology , Neurocognitive Disorders/epidemiology , Quality of Life , Tuberculosis/diagnosis , Adult , Blood Glucose , Cross-Sectional Studies , Female , Glucose Tolerance Test , Humans , Male , Mental Status and Dementia Tests , Middle Aged , Neurocognitive Disorders/psychology , Prevalence , Tuberculosis/psychology
7.
Tuberc Res Treat ; 2018: 1830372, 2018.
Article in English | MEDLINE | ID: mdl-30345114

ABSTRACT

The burden of both tuberculosis (TB) and diabetes mellitus in developing countries including Ghana is high; often, the two coexist and impact each other negatively. Objective. The study aimed to determine the prevalence and predictive factors of dysglycaemia among newly diagnosed smear positive tuberculosis patients at a tertiary tuberculosis treatment centre in Ghana. Methods. Dysglycaemia at diagnosis was determined by the use of oral glucose tolerance test (OGTT), while sputum smear microscopy was used to assess the sputum status. Only smear positive patients were included in the study. Information on sociodemographic, anthropometrical, clinical, and medication history was also obtained. Results. In all, 146 participants, aged 18 to 75 years with a mean age of 38.7 years comprising 115 (78.8%) males and 31 (21.2%) females, were involved in the analysis. Upon initial screening, using fasting plasma glucose (FPG), 91.1 % had normal fasting level, 5.5 % had impaired fasting, and 3.4% were diagnosed with diabetes. Using 2-hour postprandial values (2HPP), 59.6% had normal plasma glucose, 28.8 % had impaired glucose tolerance (IGT), and 11.6 % were diagnosed with diabetes. Overall, the prevalence of dysglycaemia (i.e., impaired fasting and diabetes) was 8.9% (95% CI: 5.21-14.82%) with FPG test and 40.4% (95% CI: 32.68-48.65%) with 2HPP test. The analysis revealed that 2HPP was associated with high mean age compared to FPG (36.67 ± 13.97 versus 41.69 ± 13.97, p-value = 0.033). In addition, marital status was significantly associated with FPG status of patients (p = 0.028). Conclusion. The prevalence of dysglycaemia was high among smear positive TB patients in Ghana. Higher mean age and marital status were associated with abnormal glucose tolerance and fasting plasma glucose, respectively. Clinical management of patients with tuberculosis should include screening for diabetes.

9.
Lupus ; 27(2): 336-342, 2018 Feb.
Article in English | MEDLINE | ID: mdl-29173007

ABSTRACT

Although it was previously believed that systemic lupus erythematosus was uncommon among Africans, it has become increasingly apparent that the incidence is higher, and socioeconomic challenges such as physician shortages, poor medical facility access, and poor health literacy may worsen prognosis. This retrospective study examines characteristics and outcomes of hospitalized systemic lupus erythematosus patients over a two-year period and serves as a baseline for comparison for future studies to examine the outcomes with the provision of more dedicated care. There were 51 patient admissions over a two-year period, with a mean duration from start of illness to admission of approximately two years. Duration of admission ranged from one to 140 days with a mean period of 26.12 days (SD ± 26.6). There were 22 deaths (43.1% of admissions), which were mainly due to infections and renal complications. Factors associated with risk of death in regression analysis were: infections, fever, disease flare, musculoskeletal involvement, amenorrhea, depression, a clinical finding of hepatomegaly, and chest infection. Understanding the effect and outcome of systemic lupus erythematosus across different countries can elucidate the role of genetic, environmental, and other causative factors in the progression of the disease.


Subject(s)
Hospitalization/statistics & numerical data , Infections/complications , Lupus Erythematosus, Systemic/complications , Lupus Erythematosus, Systemic/epidemiology , Outcome Assessment, Health Care/methods , Renal Insufficiency, Chronic/complications , Adult , Africa South of the Sahara/epidemiology , Cost of Illness , Disease Progression , Female , Ghana/epidemiology , Hospitalization/trends , Hospitals, Teaching , Humans , Incidence , Infections/mortality , Lupus Erythematosus, Systemic/diagnosis , Lupus Erythematosus, Systemic/mortality , Male , Middle Aged , Mortality , Predictive Value of Tests , Prognosis , Prospective Studies , Renal Insufficiency, Chronic/mortality , Retrospective Studies , Risk Factors , Socioeconomic Factors
10.
Biochem Genet ; 50(9-10): 770-83, 2012 Oct.
Article in English | MEDLINE | ID: mdl-22689049

ABSTRACT

We report here on the phylogenetic analysis, population substructure, and identification of molecular tags of 25 popular rice varieties and four landraces from different ecological belts of India employing a set of 52 simple sequence repeat (SSR) markers. Genetic analysis using the SSR markers categorized the genotypes into two major clusters, distributed according to their pedigree. Population structure analysis suggested that the optimum number of subpopulations was three (K = 3) in the popular varieties and landraces. At K = 5 the allelic distribution was much more similar to the phylogenetic dendrogram. The molecular diversity and population structure analysis indicated that there is not much variation among the popular rice cultivars of India. The study has identified SSR markers producing unique alleles, which should aid in the precise identification, maintenance, and genetic purity analysis of rice varieties.


Subject(s)
Genetic Variation , Genome, Plant , Microsatellite Repeats , Oryza/genetics , Alleles , DNA, Plant/genetics , Gene Frequency , Genetics, Population , Genotype , Genotyping Techniques/methods , India , Oryza/classification , Phylogeny , Species Specificity
11.
J Genet ; 90(1): 11-9, 2011 Apr.
Article in English | MEDLINE | ID: mdl-21677384

ABSTRACT

A set of morphological traits and SSR markers were used to determine the genetic relationship among 12 elite thermosensitive genic male sterile (TGMS) lines developed at three different research institutions of India. Agro-morphological data recorded on 20 morphological traits revealed a wide base of genetic variation and a set of four morphological traits could distinguish most of the TGMS lines. Analysis with 30 SSR markers (20 EST-SSRs and 10 genomic SSRs) revealed 27 markers to be polymorphic, amplifying a total of 83 alleles. Each SSR marker amplified 2-6 alleles with an average of 2.76 alleles per marker and a PIC value varying from 0.54 to 0.96. Cluster analysis based on SSR and morphological data clearly differentiated the lines according to their source of origin. Correlation analysis between morphological and molecular data revealed a very poor association (r = 0.06), which could be attributed to selection pressure, genetic drift, sampling error and unknown relationship among related lines. The SSR markers discriminated the genotypes distinctly and quantified the genetic diversity precisely among the TGMS lines. Data on the yield per plant indicated that the genotypes grouping under a similar cluster showed same heterotic behaviour as compared to the genotypes from different clusters when crossed to similar pollinators.


Subject(s)
Microsatellite Repeats , Oryza/genetics , Plant Infertility/genetics , Plant Proteins/genetics , Alleles , Genetic Association Studies , Genotype , Molecular Sequence Data , Polymorphism, Genetic , Selection, Genetic , Statistics as Topic
12.
Arch Phys Med Rehabil ; 90(9): 1469-77, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19735773

ABSTRACT

OBJECTIVE: To validate the revised version of the Quick Cognitive Screening Test (QCST). DESIGN: Cross-sectional. SETTING: Senior homes; hospital; college campus. PARTICIPANTS: Participants (N=377; 114 men, 263 women) were recruited comprising healthy controls (n=201; 40 men, 161 women), subjects with dementia (n=93; 34 men, 59 women) including Alzheimer disease (n=73) and vascular dementia (n=20); subjects with psychiatric illness (n=35, 15 men, 20 women), specifically schizophrenia or bipolar disorder; and subjects with other neurologic conditions (n=48, 25 men, 23 women) such as traumatic brain injury (n=12) and cerebrovascular disease (n=31). Diagnoses were confirmed by physicians using appropriate criteria. Recruitment was done in the northeastern region. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: In an effort to examine the reliability and validity of the revised QCST, participants were administered the revised QCST with a number of standardized measures (ie, Alzheimer's Disease Assessment Scale-Cognitive, Mini-Mental State Examination, Tests of Oral Fluency, Trail-Making Test, and Functional Activities Questionnaire). RESULTS: The results revealed that the revised QCST discriminated between healthy controls and the neuropsychiatric participants. Additionally, the revised QCST significantly correlated with other standardized measures, confirming the revised QCST's reliability and validity as a screening instrument for subjects with cognitive deficits. CONCLUSIONS: The revised QCST provides the clinician with a short yet reliable screening instrument in detecting cognitive deficits in subjects with dementia and other neurologic conditions.


Subject(s)
Cognition Disorders/diagnosis , Neuropsychological Tests , Aged , Aged, 80 and over , Brain Injuries/psychology , Cerebrovascular Disorders/psychology , Cross-Sectional Studies , Dementia/psychology , Female , Humans , Male , Mental Disorders/psychology , Middle Aged , Psychometrics , ROC Curve , Reproducibility of Results
13.
Aging Ment Health ; 11(5): 485-95, 2007 Sep.
Article in English | MEDLINE | ID: mdl-17882586

ABSTRACT

The purpose of this study was to investigate the potential effects of interactive cognitive training and computer-assisted programmes in reducing decline in older adults with dementia. The primary goal of this programme was to maintain participants' level of cognitive function. This study included six moderately to severely demented older adults living in a secured memory-impairment unit within an assisted living community. The participants were assessed with neuropsychological tests prior to, and immediately following, an intensive six-week cognitive training programme. The results showed that the participants improved significantly on measures of overall cognitive function, including short-term memory and cognitive failures. Caregiver reports also indicated significant improvement in the participants' behaviour signs and socialization. Additionally, these participants did not demonstrate significant decline on any of the measures from pre-test to post-test levels. This preliminary study indicates that a combined interactive cognitive training and individual-based computer training programme may effectively reduce decline and even improve some cognitive and behavioural functioning in demented older adults. A follow-up of the participants after four weeks of no training revealed some decline in some of the cognitive and behavioural measures, thus supporting the effectiveness of the training programmes.


Subject(s)
Dementia , Severity of Illness Index , Therapy, Computer-Assisted/education , Aged , Aged, 80 and over , Connecticut , Dementia/psychology , Disease Progression , Female , Humans , Male , Mass Screening , Memory , Psychological Tests
14.
Genome ; 45(1): 22-7, 2002 Feb.
Article in English | MEDLINE | ID: mdl-11908664

ABSTRACT

Genes for resistance to white rust (Albugo candida) in oilseed Brassica rapa were mapped using a recombinant inbred (RI) population and a genetic linkage map consisting of 144 restriction fragment length polymorphism (RFLP) markers and 3 phenotypic markers. Young seedlings were evaluated by inoculating cotyledons with A. candida race 2 (AC2) and race 7 (AC7) and scoring the interaction phenotype (IP) on a 0-9 scale. The IP of each line was nearly identical for the two races and the population showed bimodal distributions, suggesting that a single major gene (or tightly linked genes) controlled resistance to the two races. The IP scores were converted to categorical resistant and susceptible scores, and these data were used to map a single Mendelian gene controlling resistance to both races on linkage group 4 where resistance to race 2 had been mapped previously. A quantitative trait loci (QTL) mapping approach using the IP scores detected the same major resistance locus for both races, plus a second minor QTL effect for AC2 on linkage group 2. These results indicate that either a dominant allele at a single locus (Acal) or two tightly linked loci control seedling resistance to both races of white rust in the biennial turnip rape cultivar Per. The map positions of white rust resistance genes in B. rapa and Brassica napus were compared and the results indicate where additional loci that have not been mapped may be located. Alignment of these maps to the physical map of the Arabidopsis genome identified regions to target for comparative fine mapping using this model organism.


Subject(s)
Arabidopsis/genetics , Brassica napus/genetics , Brassica rapa/genetics , Oomycetes/physiology , Arabidopsis/microbiology , Brassica napus/microbiology , Brassica rapa/microbiology , Chromosome Mapping , Genes, Dominant , Genetic Markers , Sequence Alignment , Sequence Analysis, DNA
15.
Cytobios ; 97(386): 153-9, 1999.
Article in English | MEDLINE | ID: mdl-10610298

ABSTRACT

The influence of the genetic background of Cymbopogon species on the antifungal activity of essential oils derived from the plants was investigated against three yeast-like and nine filamentous fungi. Essential oils from distinct strains of the aromatic grass Cymbopogon showed interspecific and intraspecific differences in antifungal activity.


Subject(s)
Antifungal Agents/pharmacology , Oils, Volatile/pharmacology , Poaceae , Fungi/drug effects , Microbial Sensitivity Tests , Species Specificity
16.
Arch Phys Med Rehabil ; 80(10): 1309-15, 1999 Oct.
Article in English | MEDLINE | ID: mdl-10527093

ABSTRACT

OBJECTIVE: To provide an alternative language comprehension assessment strategy for patients unable to be tested with traditional verbally/behaviorally based methods. DESIGN: Event-related brain potentials were recorded from three midline scalp locations to visually and aurally computer-presented sentences, 50% of which were semantically appropriate and 50% semantically incongruous. SETTING: A rehabilitation hospital. PATIENT: A 21-year-old man with a traumatic brain injury. RESULTS: The patient exhibited brain response patterns to aurally presented congruous and incongruous sentences indicative of intact semantic processing capabilities. These findings resulted in reinstatement of individualized rehabilitative intervention, with a successful outcome. CONCLUSIONS: This innovative technique provides new opportunities for assessing intellectual function in noncommunicative patients who were patients previously unable to be tested.


Subject(s)
Aphasia/diagnosis , Aphasia/etiology , Brain Injury, Chronic/complications , Diagnosis, Computer-Assisted/methods , Electroencephalography/methods , Evoked Potentials, Auditory , Evoked Potentials, Visual , Language Tests , Adult , Aphasia/rehabilitation , Brain Injury, Chronic/diagnostic imaging , Humans , Longitudinal Studies , Male , Neuropsychological Tests , Psychometrics , Reproducibility of Results , Tomography, X-Ray Computed
17.
Nurs Res ; 48(4): 220-5, 1999.
Article in English | MEDLINE | ID: mdl-10414685

ABSTRACT

BACKGROUND: Intellectually impaired individuals with severe behavior problems pose a challenge to caregivers in treatment and management. The use of behavioral intervention techniques, for example, differential reinforcement of other behavior (DRO), has been shown the most effective with this client group type. Studies suggest that DRO is effective and may result in generalization of treatment effects. OBJECTIVES: To test which of three behavior interventions (DRO, mutual goal setting [MGS], and routine care) improve self-care behaviors in moderately intellectually impaired individuals with behavioral problems, and to examine whether the use of goal attainment scaling (GAS) in evaluating interventions reflects improvement in self-care behavior. METHOD: A quasi-experimental design with small-group and single-subject repeated measures were used. The participants (15 congenitally moderately intellectually impaired residents with inadequate self-care behaviors) were randomly assigned to one of the three interventions for fostering self-care behaviors. To evaluate the outcome of treatment, GAS was used. Staff in the DRO and MGS groups developed and evaluated rehabilitation plans with each participant. Participants in the DRO group, but not the MGS group, were positively reinforced immediately. Staff in the routine care group assisted residents. The intervention continued for 22 weeks; follow-up was 16 weeks. RESULTS: A change score was calculated from the GAS for each participant and group. The expected range of mean GAS scores for individuals and groups was between 23 and 77, with 23 (-2) representing less than and 77 (+2) much more than expected improvement. CONCLUSIONS: Findings showed DRO to be more effective than the other interventions in improving self-care behaviors. Comparisons of the GAS mean baseline and mean intervention scores in all three interventions demonstrated the actual improvement in the self-care behaviors.


Subject(s)
Behavior Therapy , Goals , Intellectual Disability/nursing , Intellectual Disability/psychology , Self Care , Adult , Analysis of Variance , Behavior Therapy/methods , Female , Humans , Male , Nursing/methods , Treatment Outcome
18.
Int J Psychophysiol ; 27(2): 125-36, 1997 Sep.
Article in English | MEDLINE | ID: mdl-9342643

ABSTRACT

Previous research has suggested that the Pb component of the middle-latency auditory evoked response (MLAER) is differentially abnormal in patients with Alzheimer's disease relative to control subjects. In the present study, this putative abnormality was examined in vertex-recorded MLAERs elicited by monaural stimulation in 14 patients with Alzheimer's disease (six females) and 22 age-matched control subjects (10 females). A sex difference in Pb elicitation was revealed in control subjects; Pb area was twice as large in females than males (P < 0.05). Pb and Pa amplitudes and latencies did not differ between male and female control subjects. Comparisons of Pb between patients and controls were conducted within each sex. There was no main effect of group on Pb area, amplitude, or latency, Pa amplitude was significantly larger in patients than control subjects; there was no group difference in Pa latency. This study did not replicate previous reports of differences in Pb between patients with Alzheimer's disease and elderly control subjects. We demonstrated that Pb elicitation may be unreliable in elderly control subjects and found evidence of a possible sex difference. The effects of inter-subject variables (e.g. age, sex) must be understood more fully before MLAERs can be exploited as meaningful markers of brain dysfunction.


Subject(s)
Aged/psychology , Alzheimer Disease/psychology , Individuality , Reaction Time/physiology , Acoustic Stimulation , Adult , Double-Blind Method , Electroencephalography , Electrooculography , Evoked Potentials, Auditory/physiology , Female , Humans , Male , Sex Characteristics
19.
Genetics ; 146(3): 1123-9, 1997 Jul.
Article in English | MEDLINE | ID: mdl-9215913

ABSTRACT

The major difference between annual and biennial cultivars of oilseed Brassica napus and B. rapa is conferred by genes controlling vernalization-responsive flowering time. These genes were compared between the species by aligning the map positions of flowering time quantitative trait loci (QTLs) detected in a segregating population of each species. The results suggest that two major QTLs identified in B. rapa correspond to two major QTLs identified in B. napus. Since B. rapa is one of the hypothesized diploid parents of the amphidiploid B. napus, the vernalization requirement of B. napus probably originated from B. rapa. Brassica genes also were compared to flowering time genes in Arabidopsis thaliana by mapping RFLP loci with the same probes in both B. napus and Arabidopsis. The region containing one pair of Brassica QTLs was collinear with the top of chromosome 5 in A. thaliana where flowering time genes FLC, FY and CO are located. The region containing the second pair of QTLs showed fractured collinearity with several regions of the Arabidopsis genome, including the top of chromosome 4 where FRI is located. Thus, these Brassica genes may correspond to two genes (FLC and FRI) that regulate flowering time in the latest flowering ecotypes of Arabidopsis.


Subject(s)
Arabidopsis/genetics , Brassica/genetics , Genes, Plant , Arabidopsis/growth & development , Brassica/growth & development , Chromosome Mapping , Time Factors
20.
Stroke ; 28(4): 777-84, 1997 Apr.
Article in English | MEDLINE | ID: mdl-9099196

ABSTRACT

BACKGROUND AND PURPOSE: Evidence indicates that peripheral vascular disease (PVD) and cerebrovascular disease (CVD) coexist and therefore reflect a generalized pattern of atherosclerotic disease in an individual. Given the known deleterious effects of CVD on cognitive function, it was hypothesized that patients with PVD may have impaired cerebral function due to concomitant but clinically unrecognized CVD. The purpose of this study was to determine whether neuropsychological tests would reveal this potential dysfunction. METHODS: Neuropsychological test scores (n = 25) were compared across three groups: (1) 29 PVD patients (13 amputees, 16 nonamputees), (2) 29 age- and education-matched patients with atherothrombotic brain infarcts (ie, CVD), and (3) 30 age- and education-matched control subjects. RESULTS: PVD patients performed significantly worse (P < .002) than control subjects on eight neuropsychological measures of executive function, attention, and visuopatial function. The pattern and, in certain instances, the magnitude of impairment was highly similar between PVD and CVD subjects. Regression analysis revealed that PVD severity and ischemic heart disease were significant negative predictors of test performance. Depression and atherosclerotic risk factors did not explain neuropsychological deficits after the effects of PVD and ischemic heart disease were considered. CONCLUSIONS: PVD patients exhibit neuropsychological deficits that suggest the presence of mild vascular-related brain dysfunction. Patients with multiple manifestations of generalized atherosclerosis (ie, severe PVD, ischemic heart disease) appear to be particularly at risk. Clinicians should be alert to these potential deficits and to the possibility of further vascular-related cognitive decline.


Subject(s)
Cerebrovascular Disorders/physiopathology , Cerebrovascular Disorders/psychology , Cognition Disorders/etiology , Vascular Diseases/psychology , Affect , Aged , Analysis of Variance , Female , Humans , Male , Middle Aged , Neuropsychological Tests , Reference Values , Regression Analysis , Self Concept
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