386 research outputs found
The use of endo-vascular balloon tamponade technique for the removal of a misplaced nephrostomy tube in the inferior vena cava: A case report
AbstractIntroductionInadvertent placement of a nephrostomy tube into the inferior vena cava (IVC) is an extremely rare complication with few reported cases in the literature.Case presentationWe present a lady with obstructive uropathy in a solitary kidney in whom an attempt by the community radiologist to place a nephrostomy tube was complicated by wrong insertion into the IVC. This report illustrates how a safe non- surgical removal of this tube using an intravenous balloon tamponade technique was successfully applied.DiscussionIntravenous placement of nephrostomy catheters into the inferior vena cava is extremely rare complication. A few case reports have been published in the literature. The majority of these cases were removed in the operating room under general anesthesia. Using Intravenous balloon tamponade technique for removal has not been previously reported.ConclusionIntravenous balloon tamponade technique is effective and is a good minimally invasive alternative to surgical removal of misplaced nephrostomy tube from IVC
The effect of dietary supplementation of calcium pidolate with or without vitamin D metabolite on production performance and egg quality in commercial laying hens
Two experiments were conducted on commercial layer hens to study the effects of dietary supplementation with two levels of 25-hydroxycholecalciferol (25(OH)Dâ) and two levels of calcium pidolate (with or without 25(OH)Dâ) on production performance and egg quality. Experiment 1 was conducted using 90 Hy-Line Brown layer hens from 19 to 80 weeks of age and commenced in November 2012. Birds were divided into three groups of 30 hens as follows: group A (control group) fed with normal commercial layer mash feed, and groups B and C (treated groups) fed with normal commercial layer mash feed plus 0.5 g of 25(OH)D3 [premix (68.9 ÎŒg 25(OH)Dâ)] per kg of feed and 1 g of 25(OH)Dâ [premix (137.8 ÎŒg 25(OH)Dâ)] per kg of feed, respectively. Experiment 2 was conducted using 147 Lohmann Brown layer hens from 21 to 80 weeks of age and commenced in March 2014
The Importance of the Role of Radiology and Physical Therapy in Treating Accident Fractures
The aim of the current study is: What is the importance of the role of radiology in diagnosing fractures for patients, and what is the importance of the role of physical therapy in following up on fractures? Knowing the extent of cooperation between physical therapy and radiology in this field. The questionnaire was created electronically via Google Drive, and then distributed via mobile phone on the program. Social networking (WhatsApp). Email was used to send responses to all survey participants. 600 questionnaires were distributed on the WhatsApp communication program to all groups or people in Mecca. 550 (answers) out of 600 questionnaires were received on the researcherâs e-mail. The target group was residents of the city of Mecca, aged between (25-55 years). The following is clear from this study: the importance and role of physical therapy in relieving patientsâ pain by following a treatment program for them to return to their normal lives, to return to their normal functions and to live their lives after the fracture (yes 93.7% and no 6.3%), and also the importance and role of radiology in the appearance of infections and fractures in Bones and teeth in X-rays, according to the opinions of the participants also in the questionnaire (yes, 91.7% and no, 8.3%). Other roles of x-rays should not be overlooked, such as knowing the types of fractures, the types of splints used for each fracture, and knowing bone density
An international multicenter retrospective analysis of patients with extranodal marginal zone lymphoma and histologically confirmed central nervous system and dural involvement
Marginal zone lymphoma of the central nervous system (CNS MZL) is rare. The clinical features, treatment, and prognosis are not well characterized. We performed a multicenter retrospective study of CNS MZL. Twenty-six patients were identified: half with primary and half with secondary CNS involvement. The median age was 59 years (range 26-78), 62% female and 79% with ECOG performance status †1. The most common disease site was the dura (50%). Treatment was determined by the treating physician and varied substantially. After a median follow up of 1.9 years, the estimated 2-year progression-free (PFS) and overall survival (OS) rates were 59% and 80%, respectively. Secondary CNS MZL was associated with 2-year OS of 58%. CNS MZL is rare, but relative to other forms of CNS lymphoma, outcomes appear favorable, particularly among the subset of patients with dural presentation and primary CNS presentation
Deletion of the Ste20-like kinase SLK in skeletal muscle results in a progressive myopathy and muscle weakness
Background
The Ste20-like kinase, SLK, plays an important role in cell proliferation and cytoskeletal remodeling. In fibroblasts, SLK has been shown to respond to FAK/Src signaling and regulate focal adhesion turnover through Paxillin phosphorylation. Full-length SLK has also been shown to be essential for embryonic development. In myoblasts, the overexpression of a dominant negative SLK is sufficient to block myoblast fusion.
Methods
In this study, we crossed the Myf5-Cre mouse model with our conditional SLK knockout model to delete SLK in skeletal muscle. A thorough analysis of skeletal muscle tissue was undertaken in order to identify defects in muscle development caused by the lack of SLK. Isometric force analysis was performed on adult knockout mice and compared to age-matched wild-type mice. Furthermore, cardiotoxin injections were performed followed by immunohistochemistry for myogenic markers to assess the efficiency muscle regeneration following SLK deletion.
Results
We show here that early deletion of SLK from the myogenic lineage does not markedly impair skeletal muscle development but delays the regenerative process. Interestingly, adult mice (~6 months) display an increase in the proportion of central nuclei and increased p38 activation. Furthermore, mice as young as 3 months old present with decreased force generation, suggesting that the loss of SLK impairs myofiber stability and function. Assessment of structural components revealed aberrant localization of focal adhesion proteins, such as FAK and paxillin. Our data show that the loss of SLK results in unstable myofibers resulting in a progressive myopathy. Additionally, the loss of SLK resulted in a delay in muscle regeneration following cardiotoxin injections.
Conclusions
Our results show that SLK is dispensable for muscle development and regeneration but is required for myofiber stability and optimal force generation
What would most help improve the quality of life of older family carers of people with dementia? A qualitative study of carersâ views
Older family carers of people with dementia provide a substantial amount of care for people with dementia in the UK. Caregiving can be stressful and burdensome for these individuals, who are also experiencing psychological and physical changes resulting from their own ageing process. However, little is known about what impacts their quality of life, how this can be improved and what we should prioritise. This brief report asks one simple question to older family carers of people living with dementia â âWhat would most help improve your quality of life as a carer?â Qualitative data was collected from 150 carers who completed an anonymous paper survey during the development and validation of a quality of life tool for use with this population (DQoL-OC). Participants were individuals aged 60 and over and were providing care for a family member with dementia at home in the UK. Carers were recruited from a variety of voluntary organizations, community-based carersâ groups, health services and via online forums. A thematic approach was used to analyse the carersâ comments and three main overarching themes were identified. The quality of life of older family carers can be enhanced by having more time away from caregiving, accessing health and social services that are dementia friendly and by having economic support. Future care, policies and research should aim to address these key areas in order to promote better quality of life for older carers of people with dementia. Further implications for practice, policy and research are discussed
Homo sapiens in Arabia by 85,000 years ago
Understanding the timing and character of Homo sapiens expansion out of Africa is critical for inferring the colonisation and admixture processes that underpin global population history. It has been argued that dispersal out of Africa had an early phase, particularly ~130-90 thousand years ago (ka), that only reached the East Mediterranean Levant, and a later phase, ~60-50 ka, that extended across the diverse environments of Eurasia to Sahul. However, recent findings from East Asia and Sahul challenge this model. Here we show that H. sapiens was in the Arabian Peninsula before 85 ka. We describe the Al Wusta-1 (AW-1) intermediate phalanx from the site of Al Wusta in the Nefud Desert, Saudi Arabia. AW-1 is the oldest directly dated fossil of our species outside Africa and the Levant. The palaeoenvironmental context of Al Wusta demonstrates that H. sapiens using Middle Palaeolithic stone tools dispersed into Arabia during a phase of increased precipitation driven by orbital forcing, in association with a primarily African fauna. A Bayesian model incorporating independent chronometric age estimates indicates a chronology for Al Wusta of ~95-86 ka, which we correlate with a humid episode in the later part of Marine Isotope Stage 5 known from various regional records. Al Wusta shows that early dispersals were more spatially and temporally extensive than previously thought. Early H. sapiens dispersals out of Africa were not limited to winter rainfall-fed Levantine Mediterranean woodlands immediately adjacent to Africa, but extended deep into the semi-arid grasslands of Arabia, facilitated by periods of enhanced monsoonal rainfall
Regression analysis with categorized regression calibrated exposure: some interesting findings
BACKGROUND: Regression calibration as a method for handling measurement error is becoming increasingly well-known and used in epidemiologic research. However, the standard version of the method is not appropriate for exposure analyzed on a categorical (e.g. quintile) scale, an approach commonly used in epidemiologic studies. A tempting solution could then be to use the predicted continuous exposure obtained through the regression calibration method and treat it as an approximation to the true exposure, that is, include the categorized calibrated exposure in the main regression analysis. METHODS: We use semi-analytical calculations and simulations to evaluate the performance of the proposed approach compared to the naive approach of not correcting for measurement error, in situations where analyses are performed on quintile scale and when incorporating the original scale into the categorical variables, respectively. We also present analyses of real data, containing measures of folate intake and depression, from the Norwegian Women and Cancer study (NOWAC). RESULTS: In cases where extra information is available through replicated measurements and not validation data, regression calibration does not maintain important qualities of the true exposure distribution, thus estimates of variance and percentiles can be severely biased. We show that the outlined approach maintains much, in some cases all, of the misclassification found in the observed exposure. For that reason, regression analysis with the corrected variable included on a categorical scale is still biased. In some cases the corrected estimates are analytically equal to those obtained by the naive approach. Regression calibration is however vastly superior to the naive method when applying the medians of each category in the analysis. CONCLUSION: Regression calibration in its most well-known form is not appropriate for measurement error correction when the exposure is analyzed on a percentile scale. Relating back to the original scale of the exposure solves the problem. The conclusion regards all regression models
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