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At least 1,747 records · Page 97Linked to original sources
PubMed2000

[Anthelmintic resistance in gastrointestinal Strongylidae in sheep and goats: new data on prevalence, epidemiology, preventive measures and alternatives to anthelmintic drugs].

Anthelmintic-resistant gastrointestinal nematodes represent the major problem in controlling of parasites of small ruminants in central Europe. This article gives a brief update on the prevalence of resistant populations in sheep and goat farms in Europe. New data on the selection and spread of anthelmintic resistance are reported and recommendations are given for minimising further increases in the incidence of resistant populations. New strategies which may play a role in integrated control programs in the future, e.g. vaccination and the development of nematode-resistant breeds of animals or of nematophagous fungi are briefly discussed.

Animals↗
PubMed2000

Comprehensive hypertension care in young urban black men: an example of a program of nursing research that integrates genetic science, clinical interventions, and patient outcomes.

Black Americans have the highest rate of hypertension in the world. The well-known consequences of this condition include stroke, heart failure, and renal disease. The causes, care, and control of hypertension, especially among the underserved and understudied group of young urban black men, require more comprehensive models of health care delivery and an understanding of the gene-gene and gene-environment interactions influencing blood pressure.

Adolescent↗
PubMed2000

The treatment of childhood social phobia: the effectiveness of a social skills training-based, cognitive-behavioural intervention, with and without parental involvement.

Fifty children aged 7-14 years with a principal diagnosis of social phobia were randomly assigned to either child-focused cognitive-behaviour therapy (CBT), CBT plus parent involvement, or a wait list control (WLC). The integrated CBT program involved intensive social skills training combined with graded exposure and cognitive challenging. At posttreatment, significantly fewer children in the treatment conditions retained a clinical diagnosis of social phobia compared to the WLC condition. In comparison to the WLC, children in both CBT interventions showed significantly greater reductions in children's social and general anxiety and a significant increase in parental ratings of child social skills performance. At 12-month follow-up, both treatment groups retained their improvement. There was a trend towards superior results when parents were involved in treatment, but this effect was not statistically significant.

Adolescent↗
PubMed2000

RADARx: Recognizing, Assessing, and Documenting Adverse Rx events.

BACKGROUND: Adverse events are a leading cause of morbidity and mortality. Adverse Drug Events (ADEs) are frequent, under-reported, costly, and largely preventable. Computerized tools expose effectively ADEs and can reduce their impact. METHODS: RADARx is a Veterans Administration (VA) VistA-compatible M software program that integrates computerized ADE screening, probability assessment, documentation, and reporting capabilities. Data dictionary mapping tools have enabled RADARx implementation at 3 sites. All RADARx alerts generated at VA Medical Center (VAMC) Nashville from 7/1/99 to 9/30/99 were evaluated. RESULTS: Total ADEs documented using RADARx numbered 57. RADARx discovered 34 ADEs and 48 'potential' ADEs; 23 ADEs were found using traditional means. Overall, 11% of RADARx alerts were true positives. Pharmacist review of the 8-20 alerts generated daily costs between 10 and 30 minutes.

Adverse Drug Reaction Reporting Systems↗
PubMed2001

[Ontogenetic origin of the human individual from his genome].

Diverse propositions about the ontogenetic origin of a live organism, specially human beings, are examined. Unambiguous and objective propositions about this origin are that a live organism is an ontogenetically programmed and integrated organisation, that the origin condition has the greater influence on other processes, that in pluricellular organisms, no organ or tissue can be considered critical to establish origins and that the origin must be established by endogenous elements. Several hypotheses about the origin of life are discarded. The integration between oocyte cytoplasm and the genetic material that it receives, that culminates in the first genome replication, is proposed as the process that gives origin to the individual. This process occurs in all living organisms.

Embryonic and Fetal Development↗
PubMed2001

[Prevalence of sub-clinical vitamin A deficiency and malnutrition in slum children in Maraicabo - Venezuela].

The present cross sectional study was carried out to estimate the prevalence of vitamin A deficiency among children by means of clinics and conjunctival impression cytology (CIC), and nutritional status by anthropometric indicators H//A, W//A, W//H. The study population included 157 children 2-6 y old, from urban and rural slums of Maracaibo, Venezuela, Conjunctival impression cytology was performed by ICEPO standard procedure. Z-score was applied to anthropometric data with reference values of NCHS-WHO. No evidence of clinical or ophthalmologic signs of vitamin A deficiency were detected. The prevalence of subclinical vitamin A deficiency, as detected by abnormal CIC, was 35.4%, being higher in rural children (48.3%). These prevalence values are higher than the criteria laid down by WHO/UNICEF to indicate a public health problem (> 20%). Mild or moderate protein-energy global malnutrition and stunting were detected in 36.1% and 44.6% of children, respectively. Abnormal CIC was indistinctly observed (approximately equal to 35%) as much in children with adequate nutrition as in malnourished ones. There was no significant difference in the distribution of the CIC results in relation to nutritional status. The findings indicate that CIC and Z-score of nutritional anthropometric data are useful to characterize the risk of vitamin A deficiency and of malnutrition in communities. Beside the implementation of an integral nutritional program which includes supplementation, food fortification and dietary diversification, improvement of socio-economic and sanitation conditions and also the educational level, with emphasis on nutritional and health education, are highly recommended.

Anthropometry↗
PubMed2001

Hospital utilization and costs in a cohort of injection drug users.

BACKGROUND: Many injection drug users (IDUs) seek care at emergency departments and some require hospital admission because of late presentation in the course of their illness. We determined the predictors of frequent emergency department visits and hospital admissions among community-based IDUs and estimated the incremental hospital utilization costs incurred by IDUs with early HIV infection relative to costs incurred by HIV-negative IDUs. METHODS: The Vancouver Injection Drug User Study (VIDUS) is a prospective cohort study involving IDUs that began in 1996. Our analyses were restricted to the 598 participants who gave informed consent for our study. We used the participants' responses to the baseline VIDUS questionnaire and, from medical records at St. Paul's Hospital, Vancouver, we collected detailed information about the frequency of emergency department visits, hospital admissions and the primary diagnosis for all visits or hospital stays between May 1, 1996, and Aug. 31, 1999. The incremental difference in hospital utilization costs by HIV status was estimated, based on 105 admissions in a subgroup of 64 participants. RESULTS: A total of 440 (73.6%) of the 598 IDUs made 2763 visits to the emergency department at St. Paul's Hospital during the study period. Of these 440, 265 (160.2%) made frequent visits (3 or more). The following factors were associated with frequent use: HIV-positive status (seroprevalent: adjusted odds ratio [OR] 1.7, 95% confidence interval [CI] 1.2-2.6; seroconverted during study period: adjusted OR 3.0, 95% CI 1.6-5.7); more than 4 injections daily (adjusted OR 1.5, 95% CI 1.1-2.1); cocaine use more frequent than use of other drugs (adjusted OR 2.0, 95% CI 1.2-3.6); and unstable housing (adjusted OR 1.5, 95% CI 1.1-2.2). During the study period 210 of the participants were admitted to hospital 495 times; 118 (56.2%) of them were admitted frequently (2 or more admissions). The 2 most common reasons for admission were pneumonia (132 admissions among 79 patients) and soft-tissue infections (cellulitis and skin abscess) (90 admissions among 59 patients). The following factors were independently associated with frequent hospital admissions: HIV-positive status (seroprevalent: adjusted OR 5.4, 95% CI 3.4-8.6; seroconverted during study period: adjusted OR 2.9, 95% CI 1.4-6.0); and female sex (adjusted OR 1.8, 95% CI 1.1-3.1). The incremental hospital utilization costs incurred by HIV-positive IDUs relative to the costs incurred by HIV-negative IDUs were $1752 per year. INTERPRETATION: Hospital utilization was significantly higher among community-based IDUs with early HIV disease than among those who were HIV negative. Much of the hospital use was related to complications of injection drug use and may be reduced with the establishment of programs that integrate harm reduction strategies with primary care and addiction treatment.

British Columbia↗
PubMed1990

The strategic role of exercise devices in manned spaceflight.

Exercise appears in various contexts during spaceflight. It serves as a key countermeasure against adverse physiological adaptation processes; it also plays a role in life sciences research as reference state or stimulus. Further aspects concern human factors, recreational activities, health monitoring and training for emergency egress and extra-vehicular activities. Current approaches rely on conventional ergometers, they add rather than integrate training programs, and they tend to disregard applications other than "countermeasures". Two major consequences are an appreciable impact on available crew-time and an unsolved problem: Exercise countermeasures use extrapolations of 1g-physiology in order to eliminate what physiologists would like to study: adaptation to weightlessness. New concepts and devices are required to reconcile such conflicting demands and to reduce time consumption for physical training. Key elements are an improved simulation of terrestrial locomotion and a recombination of work and physical exercise. The GRASIM device will be presented as an example for a new generation of multi-purpose "exercisers".

Adaptation, Physiological↗
PubMed2001

Physical and biological studies with protons and HZE particles in a NASA supported research center in radiation health.

NASA has established and supports a specialized center for research and training (NSCORT) to specifically address the potential deleterious effects of HZE particles on human health. The NSCORT in radiation health is a joint effort between Lawrence Berkeley National Laboratory (LBNL) and Colorado State University (CSU). The overall scope of research encompasses a broad range of subjects from microdosimetric studies to cellular and tissue responses to initial damage produced by highly energetic protons and heavy charged particles of the type found in galactic cosmic rays (GCR) spectrum. The objectives of the microdosimetry studies are to determine the response of Tissue Equivalent Proportional Counter (TEPC) to cosmic rays using ground based accelerators. This includes evaluation of energy loss due to the escape of high-energy delta rays and increased energy deposition due to the enhanced delta ray production in the wall of the detector. In this report major results are presented for 56Fe at 1000, 740, 600 and 400 MeV/nucleon. An assessment of DNA repair and early development of related chromosomal changes is extremely important to our overall understanding of enhanced biological effectiveness of high LET particle radiation. Results are presented with respect to the fidelity of the rejoining of double strand breaks and the implications of misrejoining. The relationship between molecular and cytogenetic measurements is presented by studying damage processing in highly heterochromatic supernumerary (correction of sypernumerary) X chromosomes and the active X-chromosome. One of the important consequences of cell's inability to handle DNA damage can be evaluated through mutation studies. Part of our goal is the assessment of potential radioprotectors to reduce the mutation yield following HZE exposures, and some promising results are presented on one compound. A second goal is the integration of DNA repair and mutation studies. Results are presented on a direct comparison of initial double strand breaks induction, the time course and fidelity of double strand break rejoining, cell killing and mutation induction in the same human model system. In order to understand the carcinogenic potential of protons and HZE particles, the role of damaged microenvironment in this process must be understood. In this project it has been postulated that radiation affects the microenvironment, which then modifies cell interactions in a manner conducive to neoplastic progression. Both TGF-beta and FGF-2 are important components of microenvironment. A recent result on the assessment of the role of FGF-2 and its cross-talk with TGF-beta as a function of radiation quality is presented. Theoretical modeling has so far played a central role in analyzing and integrating experimental data on repair and mutation studies and predicting new phenomena. The integrated NSCORT program also provides a broad training experience for students and postdoctoral fellows in space radiation health.

Animals↗
PubMedDate not supplied

[Analysis and recognition of promoters for erythroid-specific genes based on degenerative oligonucleotide motifs].

We developed a method to search for degenerate oligonucleotide motifs specific for certain regions in eukaryotic gene promoters. A procedure of promoter recognition based on these motifs is presented. The methods are integrated within program package ARGO available for the Internet users (http://wwwmgs.bionet.nsc.ru/mgs/programs/argo). This method was applied to study erythroid-specific gene promoters. High efficiency of their recognition is demonstrated.

Base Sequence↗
PubMedDate not supplied

[Prospects of psychiatric research in Latin America].

The authors analyze the needs for research in Latin America and Assess the feasility of several implementations to meet the needs. A review is made of research work already completed or under ay, stressing the scarcity of full-time researchers, and part-time ones, the difficulties for establishing research teams and for creating the most suitable environmental conditions and training facilities. Lack of research planning is only aggrevating the general conditions, and impairing the performance of individual or group researchers, reducing their possibilities of integrating comprehensive programs. The financial aspects are similarly strained. Small participation of official agencies in financing pure of applied research, is at the roots...

Folklore↗