Mathew, Eva*
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The purpose of the study was to assess the long-term behavior and incorporation of the bioactive oxyhydroxyapatite glass-ceramic used to fill defects of long bones after curettage of bone cysts in 17 patients. The method of evaluation was a three-phase bone scintigraphy combined with radiographic and clinical evaluation. At a mean follow-up of 7 years, the glass-ceramic material had been completely incorporated. Mean uptake ratio was 1.31+/-0.25 after implantation of glass-ceramic in the metaphyseal region and 2.07+/-0.62 after implantation of glass-ceramic in the diaphyseal region (P<0.05). Mean uptake ratio was 1.40+/-0.30 in patients without persistent pain and 2.07+/-0.69 in patients who complained of pain in the area of synthetic filling (P<0.05). The bioactive glass-ceramic can be implanted into the metaphyseal defects of long bones, but this material is not suitable for filling the diaphyseal defects.
- MeSH
- dítě MeSH
- keramika MeSH
- kosti a kostní tkáň chirurgie MeSH
- kostní cysty chirurgie patologie MeSH
- kostní náhrady MeSH
- kyretáž MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- osteointegrace MeSH
- protézy a implantáty MeSH
- Check Tag
- dítě MeSH
- lidé MeSH
- mladiství MeSH
- mladý dospělý MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- práce podpořená grantem MeSH
We evaluated efficacy and safety of recombinant activated factor VII (rFVIIa) in nonhemophilia children with life-threatening or severe bleeding. Using data from the SeveNBleeP registry, we analyzed demographic, clinical, laboratory, and treatment data for children who received rFVIIa to treat severe hemorrhage. The SeveNBleeP registry was international registry formed in 2005, to collect information on the use of rFVIIa in the off-label setting of severe bleeding in nonhemophilia patients. There were 191 patient records entered into this registry, of which 164 were validated. Of the 164 records, in 137 patient records, rFVIIa was used for treatment of bleeding episodes. Of these 137 treatment episodes, 42 were in neonates and infants under 1 year of age. Use of rFVIIa significantly improved laboratory parameters (prothrombin time, international normalized ratio, activated partial thromboplastin time, hematocrit), reduced estimated blood loss, and reduced requirements for blood products (packed red blood cells and fresh frozen plasma) in those more than 1 year of age. There was no significant reduction in requirements for blood products after rFVIIa administration in the neonates and infants, but there was a trend to lower frequency of FFP use after rFVIIa administration. There was one thromboembolic event in an infant that was related to administration of rFVIIa. No other serious adverse events were reported that were related to administration of rFVIIa. In nonhemophilia-associated bleeding in children, rFVIIa appears to be safe and efficacious in reducing estimated blood loss in children over 1 year of age, although its effectiveness in infants below 1 year of age was less clear.
- MeSH
- dítě MeSH
- faktor VIIa škodlivé účinky terapeutické užití MeSH
- kojenec MeSH
- krvácení farmakoterapie MeSH
- lidé MeSH
- mladiství MeSH
- předškolní dítě MeSH
- registrace MeSH
- rekombinantní proteiny škodlivé účinky terapeutické užití MeSH
- retrospektivní studie MeSH
- Check Tag
- dítě MeSH
- kojenec MeSH
- lidé MeSH
- mladiství MeSH
- mužské pohlaví MeSH
- předškolní dítě MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
Papillary thyroid carcinoma (PTC) represents ~80% of all thyroid cancers, most frequently presenting in women in the third and fourth decade of life. The first clinical manifestation of PTC commonly includes a palpable mass in the thyroid area or cervical lymphadenopathy in cases of metastatic disease. Hematogenous distant metastases are a sign of an advanced stage of the tumour. The present study reported an extremely rare occurrence of solitary metastasis of a PTC in the left breast of a 63-year-old male patient, mimicking primary male breast cancer (MBC). The presence of a male breast lesion that did not follow the typical imaging criteria for MBC aroused suspicion of a different primary origin. The combination of imaging methods, laboratory findings and fine-needle aspiration techniques enabling cytological and histopathological examination, with the use of a wide panel of immunohistochemical markers, is crucial to establishing a definitive and correct diagnosis.
- Publikační typ
- časopisecké články MeSH
- kazuistiky MeSH
Ascochyta blight of chickpea is caused by Ascochyta rabiei (Pass.) Labr. which is primarily seedborne. For rapid detection and precise identification of A. rabiei, a sequence-characterized amplified region (SCAR) marker was developed for detection of genomic DNA and infected plant DNA. An SSR primer amplified monomorphic band was cloned in pGEM®-T easy vector and sequenced. The best primer pair was selected and validated on A. rabiei. The specificity and sensitivity of the SCAR-based marker designated as MBAR was evaluated using conventional PCR and real-time PCR. The marker produced consistently an amplicon size of 196 bp in all A. rabiei isolates tested. The sensitivity of the marker was 0.1 ng of genomic fungal DNA and 0.5 ng of plant DNA by conventional PCR and 0.5 pg of A. rabiei DNA and 1.0 pg of plant DNA by real-time PCR. This is the first SCAR marker having high specificity and sensitivity towards A. rabiei. The marker may be useful in detecting the pathogen before the disease appearance and in plant quarantine program to detect the pathogen in seed lots.
OBJECTIVE: Congenital vertical talus is a rare condition but a well-known cause of severe rigid flatfoot in children. The aim of this study was to evaluate the mid-term clinical and radiological results of one-stage surgical correction in children with congenital vertical talus. METHODS: Five feet in three children diagnosed with congenital vertical talus who had undergone surgical correction were followed up for a mean period of seven and half years. During this period they were clinically evaluated for subjective complaints and objective findings focused on the range of movement at the ankle joint, position of the hindfoot, and weight-bearing ability of the treated extremity. They were also evaluated on the basis of radiographs of foot and ankle made in standard projections. RESULTS: All the children had a good functional range of movement and normally shaped foot. The range of movement remains restricted and decreased during the follow-up period without causing any functional disability. All radiological measurements were within normal limits. There was no evidence of necrosis of talus. CONCLUSION: We recommend operative treatment for congenital vertical talus by the end of first year of age. The range of movement remains restricted and seems to decrease during follow-up, which had a little effect on the functional outcome of the ankle joint (Fig. 3, Tab. 1, Ref. 18). Full Text (Free, PDF) www.bmj.sk.
Niemann-Pick disease type C (NPC) is a complex and rare pathology, which is mainly associated to mutations in the NPC1 gene. This disease is phenotypically characterized by the abnormal accumulation of multiple lipid species in the acidic compartments of the cell. Due to the complexity of stored material, a clear molecular mechanism explaining NPC pathophysiology is still not established. Abnormal sphingosine accumulation was suggested as the primary factor involved in the development of NPC, followed by the accumulation of other lipid species. To provide additional mechanistic insight into the role of sphingosine in NPC development, fluorescence spectroscopy and microscopy were used to study the biophysical properties of biological membranes using different cellular models of NPC. Addition of sphingosine to healthy CHO-K1 cells, in conditions where other lipid species are not yet accumulated, caused a rapid decrease in plasma membrane and lysosome membrane fluidity, suggesting a direct effect of sphingosine rather than a downstream event. Changes in membrane fluidity caused by addition of sphingosine were partially sustained upon impaired trafficking and metabolization of cholesterol in these cells, and could recapitulate the decrease in membrane fluidity observed in NPC1 null Chinese Hamster Ovary (CHO) cells (CHO-M12) and in cells with pharmacologically induced NPC phenotype (treated with U18666A). In summary, these results show for the first time that the fluidity of the membranes is altered in models of NPC and that these changes are in part caused by sphingosine, supporting the role of this lipid in the pathophysiology of NPC.
- MeSH
- buněčná membrána metabolismus MeSH
- CHO buňky MeSH
- cholesterol metabolismus MeSH
- Cricetulus MeSH
- endozomy metabolismus MeSH
- fenotyp MeSH
- lyzozomy metabolismus MeSH
- Niemannova-Pickova nemoc typu C metabolismus patologie MeSH
- sfingolipidy metabolismus MeSH
- sfingosin metabolismus MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
The aim of this study is to evaluate the results of total hip arthroplasty in patients with Parkinson's disease during a period of five years, focusing on the assessment of the risks and benefits of surgery. During this period we performed total hip arthroplasty in 14 patients (15 hips) with Parkinson's disease. Patients were evaluated by subjective symptoms and objective findings, with a focus on the use of support while walking and walking distance, severity of Parkinson's disease before surgery and at the time of the last follow-up. During the postoperative period, the following parameters were assessed: length of ICU stay, mobilization, complications, the total duration of hospitalization and follow-up care after discharge. Of the 11 patients (12 hips) followed-up 1-5 years with an average of 3 years after operation 8 cases showed progression of neurological disability. 5 patients (6 hips) showed an increased dependence on the use of support when walking and reduced distance that the patient was able to walk. Subjectively, 10 hip joints were completely painless and 2 patients complained of only occasional mild pain in the operated hip. Complications that were encountered were urinary tract infection (5 patients), cognitive impairment (3 patients) and pressure ulcer (2 patients). We did not observe any infection or dislocation of the prosthesis. Three patients fell and fractured the femur and 3 patients in our cohort died during follow up. Implantation of total replacement is possible with judicious indication after careful evaluation of neurological finding in patients with minimal or mild functional impairment of the locomotor system. Prerequisite for a good result is precise surgical technique and optimal implant position with balanced tension of the muscles and other soft tissues around the hip.
- MeSH
- fraktury kyčle komplikace chirurgie MeSH
- kohortové studie MeSH
- lidé MeSH
- náhrada kyčelního kloubu * MeSH
- nekróza hlavice femuru komplikace chirurgie MeSH
- Parkinsonova nemoc komplikace chirurgie MeSH
- periprotetické fraktury komplikace chirurgie MeSH
- reoperace MeSH
- selhání protézy MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- výsledek terapie MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- senioři nad 80 let MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- MeSH
- anestezie metody trendy MeSH
- echokardiografie transezofageální metody trendy MeSH
- kardiochirurgické výkony metody trendy MeSH
- lidé MeSH
- mitrální insuficience chirurgie MeSH
- randomizované kontrolované studie jako téma metody MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
Predictions of radionuclide dose rates to freshwater organisms can be used to evaluate the radiological environmental impacts of releases from uranium mining and milling projects. These predictions help inform decisions on the implementation of mitigation measures. The objective of this study was to identify how dose rate modelling could be improved to reduce uncertainty in predictions to non-human biota. For this purpose, we modelled the activity concentrations of 210Pb, 210Po, 226Ra, 230Th, and 238U downstream of uranium mines and mills in northern Saskatchewan, Canada, together with associated weighted absorbed dose rates for a freshwater food chain using measured activity concentrations in water and sediments. Differences in predictions of radionuclide activity concentrations occurred mainly from the different default partition coefficient and concentration ratio values from one model to another and including all or only some 238U decay daughters in the dose rate assessments. Consequently, we recommend a standardized best-practice approach to calculate weighted absorbed dose rates to freshwater biota whether a facility is at the planning, operating or decommissioned stage. At the initial planning stage, the best-practice approach recommend using conservative site-specific baseline activity concentrations in water, sediments and organisms and predict conservative incremental activity concentrations in these media by selecting concentration ratios based on species similarity and similar water quality conditions to reduce the uncertainty in dose rate calculations. At the operating and decommissioned stages, the best-practice approach recommends relying on measured activity concentrations in water, sediment, fish tissue and whole-body of small organisms to further reduce uncertainty in dose rate estimates. This approach would allow for more realistic but still conservative dose assessments when evaluating impacts from uranium mining projects and making decision on adequate controls of releases.
- MeSH
- hornictví MeSH
- monitorování radiace * MeSH
- radionuklidy analýza MeSH
- sladká voda MeSH
- uran * analýza MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Saskatchewan MeSH
INTRODUCTION: The COVID-19 pandemic underlined that guidelines and recommendations must be made more accessible and more understandable to the general public to improve health outcomes. The objective of this study is to evaluate, quantify, and compare the public's understanding, usability, satisfaction, intention to implement, and preference for different ways of presenting COVID-19 health recommendations derived from the COVID-19 Living Map of Recommendations and Gateway to Contextualization (RecMap). METHODS AND ANALYSIS: This is a protocol for a multi-method study. Through an online survey, we will conduct pragmatic allocation-concealed, blinded superiority randomized controlled trials (RCTs) in three populations to test alternative formats of presenting health recommendations: adults, parents, and youth, with at least 240 participants in each population. Prior to initiating the RCT, our interventions will have been refined with relevant stakeholder input. The intervention arm will receive a plain language recommendation (PLR) format while the control arm will receive the corresponding original recommendation format as originally published by the guideline organizations (standard language version). Our primary outcome is understanding, and our secondary outcomes are accessibility and usability, satisfaction, intended behavior, and preference for the recommendation formats. Each population's results will be analyzed separately. However, we are planning a meta-analysis of the results across populations. At the end of each survey, participants will be invited to participate in an optional one-on-one, virtual semi-structured interview to explore their user experience. All interviews will be transcribed and analyzed using the principles of thematic analysis and a hybrid inductive and deductive approach. ETHICS AND DISSEMINATION: Through Clinical Trials Ontario, the Hamilton Integrated Research Ethics Board has reviewed and approved this protocol (Project ID: 3856). The University of Alberta has approved the parent portion of the trial (Project ID:00114894). Findings from this study will be disseminated through open-access publications in peer-reviewed journals and using social media. TRIAL REGISTRATION: Clinicaltrials.gov NCT05358990 . Registered on May 3, 2022.
- MeSH
- COVID-19 * MeSH
- dospělí MeSH
- lidé MeSH
- metaanalýza jako téma MeSH
- mladiství MeSH
- průzkumy a dotazníky MeSH
- randomizované kontrolované studie jako téma MeSH
- SARS-CoV-2 MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- mladiství MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Ontario MeSH