5,951 research outputs found
Reliable and robust molecular sexing of the hen harrier (Circus cyaneus) using PCR-RFLP of the CHD1 gene
The hen harrier (Circus cyaneus) is a bird of prey that is persecuted in the United Kingdom, and there is a need for a DNA-based individual identification and sexing system for the use in forensic investigations. This study reports a new set of PCR primers for the chromo-helicase-DNA-binding protein 1 gene, which allows sexing using PCR-RFLP. Instead of exonic primers that amplify across a large intron, this set consists of a primer within the intron, enabling reduction in amplicon sizes from 356 to 212 bp and 565 to 219 bp in W and Z chromosomes. DNA degradation and dilution experiments demonstrate that this set is significantly more robust than one that amplifies across the intron, and sequencing of the intronic primer-binding region across several individuals shows that it is highly conserved. While our objective is to incorporate this primer set into an STR-based individualization kit, it may in the meantime prove useful in forensic or conservation studies
Brownian Dynamics Simulation of Pressure Induced Pore-Transport through an Incommensurate Channel
Study of knowledge, attitude, and practices towards current updates of pharmacovigilance and adverse drug reaction reporting among doctors in a tertiary care teaching hospital of Western India
Background: In general, adverse drug reactions (ADRs) are global problems causing both morbidity and mortality. Spontaneous ADR reporting is important to monitor adverse effects of medicines but under reporting is still very prevalent so, there is a need of constant monitoring and rectification of system of Pharmacovigilance. The objective of this study was to evaluate the knowledge, attitude, and practices (KAP) of the healthcare professionals about Pharmacovigilance and to identify the reason for under reporting of ADRs.Methods: A cross-sectional study was carried out using a pretested questionnaire among doctors with minimum qualification MBBS or B.D.S. including faculties, senior and junior residents. Subsequently, analysis of association between education and experience was done by chi square test at P-value <0.05.Results: A pretested questionnaire was distributed among 403 doctors and 240 (59.16%) responded voluntarily. In general, 131 (54.58%) participants noted lack of time to report ADR while 90 (37.50%) participants noted no benefit of reporting already known ADR. On the other hand, total 104 (43.33%) participants were aware about need to report a serious adverse event during “Clinical Trial” within 24 hours to the Ethics Committee. Only 87 (36.25%) participants noted a need of reporting of already known ADR.Conclusions: Participants had good knowledge and attitude towards pharmacovigilance, but the actual practice of ADR reporting is still deficient among them that can be improved by sensitization training and involvement of grass root level health care workers
Concussion assessment in the Emergency Department: A preliminary study for a quality improvement project
Background In sport, concussion is assessed using the Sports Concussion Assessment Tool (SCAT) 5 and managed with return to play guidelines. Similar, user-friendly tools are rarely, if ever, used in the emergency department (ED).
Objectives To evaluate a modified concussion assessment tool designed for the ED (ED-CAT) in patients presenting with a head injury and to identify variables that predict 30-day reattendance.
Methods A preliminary, prospective, evaluation in a quality improvement project was conducted in one hospital in South Wales. Patients were recruited if they were over 13 years, and either did not have an ED-CT head scan or had a scan with no acute changes. The primary outcome was 30-day reattendance.
Results 40 patients were recruited, 18 of whom had a CT scan. 37 were discharged on the same day with advice, two discharged the next day and one was admitted. Three (7.5%) patients reattended the department. Predictors of reattendance were headache score (median 3.0 vs 5.0; p<0.05), pressure in head score (2.0 vs 5.0; p<0.05), nausea/vomiting score (1.0 vs 3.0; p<0.05), dizziness score (1.0 vs 4.0; p<0.05), blurred vision score (0 vs 4.0; p<0.01), balance problems score (0 vs 4.0; p<0.05), sensitivity to light and confusion score (0 vs 4.0; p<0.01), orientation score (1. 0 vs 0; p<0.05) and immediate memory score (5.0 vs 4.0; p<0.05).
Conclusions Key symptoms and signs predicted 30-day reattendance. The ED-CAT requires validation and refinement in a larger population to produce a short, practical, user-friendly, relevant tool for ED head injury assessment
A literature review of applied adaptive design methodology within the field of oncology in randomised controlled trials and a proposed extension to the CONSORT guidelines
Background:
The application of adaptive design methodology within a clinical trial setting is becoming increasingly popular. However the application of these methods within trials is not being reported as adaptive designs hence making it more difficult to capture the emerging use of these designs. Within this review, we aim to understand how adaptive design methodology is being reported, whether these methods are explicitly stated as an 'adaptive design' or if it has to be inferred and to identify whether these methods are applied prospectively or concurrently.
Methods:
Three databases; Embase, Ovid and PubMed were chosen to conduct the literature search. The inclusion criteria for the review were phase II, phase III and phase II/III randomised controlled trials within the field of Oncology that published trial results in 2015. A variety of search terms related to adaptive designs were used.
Results:
A total of 734 results were identified, after screening 54 were eligible. Adaptive designs were more commonly applied in phase III confirmatory trials. The majority of the papers performed an interim analysis, which included some sort of stopping criteria. Additionally only two papers explicitly stated the term 'adaptive design' and therefore for most of the papers, it had to be inferred that adaptive methods was applied. Sixty-five applications of adaptive design methods were applied, from which the most common method was an adaptation using group sequential methods.
Conclusion:
This review indicated that the reporting of adaptive design methodology within clinical trials needs improving. The proposed extension to the current CONSORT 2010 guidelines could help capture adaptive design methods. Furthermore provide an essential aid to those involved with clinical trials
Experiments and Simulations of short-pulse laser-pumped extreme ultraviolet lasers
Recent experimental work on the development of extreme ultraviolet lasers undertaken using as the pumping source the VULCAN laser at the Rutherford Appleton Laboratory is compared to detailed simulations. It is shown that short duration (similar topicosecond) pumping can produce X-ray laser pulses of a few picosecond duration and that measurement of the emission from the plasma can give an estimate of the duration of the gain coefficient. The Ehybrid fluid and atomic physics code developed at the University of York is used to simulate X-ray laser gain and plasma emission. Two postprocessors to the Ehybrid code are utilized: 1) to raytrace the X-ray laser beam amplification and refraction and 2) to calculate the radiation emission in the kiloelectronvolt photon energy range. The raytracing and spectral simulations are compared, respectively, to measured X-ray laser output and the output of two diagnostics recording transverse X-ray emission. The pumping laser energy absorbed in the plasma is examined by comparing the simulations to experimental results. It is shown that at high pumping irradiance (>10(15) Wcm(-2)), fast electrons are produced by parametric processes in the preformed long scale-length plasmas. These fast electrons do not pump the population inversion and so pumping efficiency is reduced at high irradiance
Drug utilization study in the inpatients of pediatric department of a tertiary care hospital
Background: Infants and children constitute a large proportion of the population in developing countries. In Gujarat, studies on drug use patterns in the pediatric age group are lacking in the Saurashtra region hospitals. The objective was to study demographical information and the utilization pattern in the in patients of the pediatric ward.Methods: A cross-sectional, observational drug utilization study was carried out over a period of 6 months in 630 pediatric inpatients of the pediatric department of Guru Gobind Singh Hospital, Jamnagar, a tertiary care teaching hospital. Analyzed data included demographic details and drugs prescribed in respective patients.Results: Most commonly affected age group was 1-5 years, boys in 62.06% and girls in 37.94% and 40.16% were admitted in the pediatric ward. Acute gastroenteritis and pneumonia had the highest admission rate with 31.90% and 22.38%, respectively. The majority of children were prescribed 5-6 drugs. Ceftriaxone (64.92%) was the top most frequently prescribed antibiotic, followed by amoxicillin (49.21%). Prescribing drugs were mainly from essential drug list (64.44%) and by generic names (61.89%). Drugs prescribed orally in 66.10% and by injections in 33.90%.Conclusion: It is quite evident that significantly large number of children were from 1 to 5 year age group. The majority of the children were admitted in inpatients of the pediatric ward for acute gastroenteritis, followed by pneumonia and meningitis. Most frequently prescribed antibiotic group was cephalosporin, followed by penicillin group
Transition towards health promoting hospitals: adapting a global framework to Pakistan.
The World Health Organization encourages hospitals to become Health Promoting Hospitals (HPH) but adapting this concept to Pakistan has not been investigated. We explore perceptions of healthcare stakeholders about strategies and a priority action-plan to encourage HPHs in Pakistan. We conducted a qualitative study in 2007 where key-informant interviews and focus group discussions were held with healthcare stakeholders in Karachi. Thematic analysis was done and emerging themes were categorized. The HPH core components were perceived as the standard framework , however more emphasis was placed on priority actions as to satisfy basic needs of Patients, staff and the community. This included basic facilities of comfort, health, hygiene, safety, security and emotional support. A change in the traditional mindset from cure to care and identification of key personnel, awareness-raising and cooperation would strengthen advocacy efforts for HPH in Pakistan
Whole Genome Interpretation for a Family of Five.
Although best practices have emerged on how to analyse and interpret personal genomes, the utility of whole genome screening remains underdeveloped. A large amount of information can be gathered from various types of analyses via whole genome sequencing including pathogenicity screening, genetic risk scoring, fitness, nutrition, and pharmacogenomic analysis. We recognize different levels of confidence when assessing the validity of genetic markers and apply rigorous standards for evaluation of phenotype associations. We illustrate the application of this approach on a family of five. By applying analyses of whole genomes from different methodological perspectives, we are able to build a more comprehensive picture to assist decision making in preventative healthcare and well-being management. Our interpretation and reporting outputs provide input for a clinician to develop a healthcare plan for the individual, based on genetic and other healthcare data
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