278 research outputs found
Evaluation of expression ratio of HOXB13:IL17BR in patients with breast cancer by qRT-PCR method using SYBR Green dye
Background and aims: Studies have shown that a HOXB13:IL17BR expression ratio index predicts clinical outcome in ER-positive, lymph node-negative breast cancer patients that treated with adjuvant tamoxifen. All of these experiments were conducted with qReal Time RT-PCR using TaqMan probes. The aim of this study was to determine the ratio using SYBR Green I qReal Time RT-PCR.
Methods: In this case- control study, expression levels of HOXB13:IL17BR was measured in
40 paired formalin-fixed, paraffin-embedded primary breast tumor specimens. After extracting RNA from the tissues, cDNA synthesis and amplification with the polymerase chain reaction to obtain the optimum annealing temperature, the expression levels was measured by SYBR Green I qReal Time RT-PCR. To determine and normalize the expression levels, BestKeeper software was used to obtain the BestKeeper Index using the geometric mean of expression levels of housekeeping genes. Comparison of mean expression of genes between tumoral and non-tumoral tissues was performed by t-test and association between patient grouping (high/low risk) and time for disease free survival was assessed by Fisher`s Exact test.
Results: HOXB13:IL17BR expression value did not show significant difference between tumoral and non-tumoral tissues. The results showed that there was a direct and significant association between patient grouping (based on HOXB13:IL17BR ratio) and disease free survival status.
Conclusion: Results in the current study showed that in spite of using SYBR Green dye (instead of TaqMan probes), there is still a significant correlation between HOXB13:IL17BR ratio and disease free survival status
Accelerated Long Term Forgetting in patients with focal seizures: Incidence rate and contributing factors
Background: Accelerated Long Term Forgetting (ALF) is usually defined as a memory impairment that is seen only at long delays (e.g., after days or weeks) and not at shorter delays (e.g., 30 min) typically used in clinical settings. Research indicates that ALF occurs in some patients with epilepsy, but the incidence rates and underlying causes have not been established. In this study, we considered these issues. Methods: Forty-four patients with a history of focal seizures were tested at 30 min and 7 day delays for material from the Rey Auditory Verbal Learning Test (RAVLT) and Aggie Figures Test. Recently published norms from a matched group of 60 control subjects (Miller et al., 2015 ) were used to determine whether patients demonstrated ALF, impairment at 30 min or intact memory performance. Results: The incidence of ALF in the epilepsy patients (18%) was > 3 times higher than normal on the RAVLT, but no different (7%) from the incidence in normal subjects on the Aggie Figures. A different, but again significantly high, proportion of patients (36%) showed shorter-term memory deficits on at least one task. ALF was found mainly in patients with temporal-lobe epilepsy, but also occurred in one patient with an extratemporal seizure focus. Presence of a hippocampal lesion was the main predicting factor of ALF. Conclusions: Many patients with a focal seizure disorder show memory deficits after longer delays that are not evident on standard assessment. The present study explored the factors associated with this ALF memory profile. These new findings will enhance clinical practice, particularly the management of patients with memory complaints
Extraction and neutralization nematocyst venom of Crambionella orsini jellyfish [whit] using of chelating Na-EDTA
Jellyfish is one of the poisonous animals that causing human poisoning. Found a variety of jellyfish in the Persian Gulf. Although these species can't Cause of quick death in humans but they have harmful effects on human health system and have Following are the side effects. In this study extracted Crambionella Orsini Jellyfish Venom According to Bloom method and was obtained its Concentration by Biuret method and Calculated LD50 by Jung and Choi method. According to Venom concentration and its LD50 was determined that Cause of death mice 0.5 ml of venom. The use of Na-EDTA for neutralizing venom. This Chelate Was injected in two ways to mice that in both methods, Prevented death. Na-EDTA is dedicated Chelate for Calcium excretion from body that According to nuclear calcium's venom is able to separated that from Venom structure and neutralize venom
The effect of changes in temperature on the toxicity of jellyfish, Crambionella orsini
The aim of this study was to evaluate the effect of temperature changes to reduce toxicity of jellyfish Crambionellaorsini venom. Venom extraction was done according to Bloom method. Sonication was used to break the wall of nematocysts capsule and then the resulting solution was centrifuged. To evaluate the effect of temperature on the venom, it was heated at different temperatures and then injected into sori mice. After catching jellyfish, Crambionellaorsini from Arvand stream estuary edges of umbrellas and tentacles of jellyfish were separated and kept in water LD_50 of toxins were calculated by Jung and Choi method and statistical analysis to obtain minimal lethal dose of poison done by Excel 2007. The results showed that the venom of jellyfish Crambionellaorsini, like venom of other animals is, based on a protein and that is sensitive to heat. This venom is disabled and lose their structure at 48 °C and its minimum lethal dose is 0.5 ml
Comparison of Clinical Findings of Acute Appendicitis and Mesenteric Lymphadenitis in Children with Acute Abdominal Pain
Background and Objective: Mesenteric lymphadenitis is an inflammatory process that has similar clinical symptoms to appendicitis among diseases associated with acute abdominal pain. Therefore, the aim of this study was to compare clinical and paraclinical findings in children with appendicitis and mesenteric lymphadenitis.
Methods: This cross-sectional study was conducted on 214 children who were admitted to Amirkola Children's Hospital in 2011-2021 with the diagnosis of appendicitis (112 people) or mesenteric lymphadenitis (102 people). Appendicitis and mesenteric lymphadenitis were diagnosed based on pathology and ultrasound, clinical symptoms, laboratory parameters and ultrasound of children were compared in two groups.
Findings: Out of 214 children, 112 (52.15%) were girls and the mean age of the children was 7.53±3.19 years. Children with appendicitis compared to children with mesenteric lymphadenitis were more likely to have tenderness (42.2% vs 85.7%, p<0.001), rebound tenderness (40.2% vs 4.9%, p<0.001), vomiting (79.5% vs 61.8%, p=0.004) and pain shift (11.8% vs 25%, p<0.013). Also, WBC (9774.51±3971.35 vs 15358.04±4635.20, p<0.001), neutrophil (63.42±17.05 vs 77.02 ± 10.51, p<0.001), ESR (19.73±18.56 vs 38.57±27.29, p<0.001) and CRP (18.00±27.98 vs 52.77±40.30, p<0.001) were significantly higher in children with appendicitis. Ultrasound sensitivity (0.73-0.88) was 80.4% in diagnosing appendicitis and rejected mesenteric lymphadenitis with 100% probability.
Conclusion: The results of the study showed that some clinical symptoms with leukocytosis, neutrophilia and high CRP can help differentiate appendicitis from mesenteric lymphadenitis. But ultrasound can have a more definitive result in this regard
Disability patterns over the first year after a diagnosis of epilepsy
Objective
To determine the patterns and predictors of disability over the first 12 months after a diagnosis of epilepsy.
Patients and methods
The Sydney Epilepsy Incidence Study to Measure Illness Consequences (SEISMIC) was a prospective, multicenter, community-based study of people with newly diagnosed epilepsy in Sydney, Australia. Disability was assessed using the World Health Organization’s, Disability Assessment Schedule (WHODAS) 2.0 12-item version, at baseline (i.e. within 28 days of diagnosis) and 12 months post-diagnosis. Demographic, socioeconomic, clinical and epilepsy-related data, obtained through structured interviews, were entered into multivariable linear regression and shift analysis to determine predictors of greater disability.
Results
Of 259 adults (≥18 years), 190 (73%) had complete WHODAS at baseline (mean ± SD scores 4 ± 6) and follow-up (4 ± 8). After adjustment for age, sex and co-morbidity, greater overall disability at 12 months was associated with lower education (P = 0.05), economic hardship (P = 0.004), multiple antiepileptic medications (P = 0.02) and greater disability (P < 0.001) at the time of diagnosis; these variables explained 38.3% of the variance. Among the 12 WHODAS items, “being emotionally affected by health problems” was the most frequent disability problem identified at both time points (all P < 0.0001). The proportion of participants without problems in that domain improved over 12 months (from 24% to 50%, P < 0.0001), whereas the other 11 items remained relatively stable. Independent baseline predictors of a worse emotional outcome at 12 months were severe/extreme emotional distress (odds ratio [OR] 4.52, 95% confidence intervals [CI] 1.67–12.24), economic hardship (OR 2.30, 95% CI 1.24–4.25) and perceived stigma (OR 2.02, 95% CI 1.03–3.93).
Conclusion
Most people report problems with emotional health after a diagnosis of epilepsy but many recover over the next 12 months. Services addressing the social and psychological impact of diagnosis may be needed to improve outcome
Multicentre randomised placebo-controlled trial of oral anticoagulation with apixaban in systemic sclerosis-related pulmonary arterial hypertension: the SPHInX study protocol
Introduction: Systemic sclerosis (SSc) is a severe and costly multiorgan autoimmune connective tissue disease characterised by vasculopathy and fibrosis. One of the major causes of SSc-related death is pulmonary arterial hypertension (PAH), which develops in 12–15% of patients with SSc and accounts for 30– 40% of deaths. In situ thrombosis in the small calibre peripheral pulmonary vessels resulting from endothelial dysfunction and an imbalance of anticoagulant and prothrombotic mediators has been implicated in the complex pathophysiology of SSc-related PAH (SSc- PAH), with international clinical guidelines recommending the use of anticoagulants for some types of PAH, such as idiopathic PAH. However, anticoagulation has not become part of standard clinical care for patients with SSc-PAH as only observational evidence exists to support its use. Therefore, we present the rationale and methodology of a phase III randomised controlled trial (RCT) to evaluate the efficacy, safety and cost-effectiveness of anticoagulation in SSc-PAH. Methods and analysis: This Australian multicentre RCT will compare 2.5 mg apixaban with placebo, in parallel treatment groups randomised in a 1:1 ratio, both administered twice daily for 3 years as adjunct therapy to stable oral PAH therapy. The composite primary outcome measure will be the time to death or clinical worsening of PAH. Secondary outcomes will include functional capacity, health-related quality of life measures and adverse events. A cost-effectiveness analysis of anticoagulation versus placebo will also be undertaken. Ethics and dissemination: Ethical approval for this RCT has been granted by the Human Research Ethics Committees of all participating centres. An independent data safety monitoring board will review safety and tolerability data for the duration of the trial. The findings of this RCT are to be published in open access journals.Alicia Calderone, Wendy Stevens, David Prior, Harshal Nandurkar, Eli Gabbay, Susanna M Proudman, Trevor Williams, David Celermajer, Joanne Sahhar, Peter K K Wong, Vivek Thakkar, Nathan Dwyer, Jeremy Wrobel, Weng Chin, Danny Liew, Margaret Staples, Rachelle Buchbinder, Mandana Nikpou
Pragmatics of Yes/No Indirect-responses (YNIRs)
AbstractHow do people transmit information with “question-answer” structures? What happens when a speaker utters a meaningful question and the hearer understands it? The present paper focuses on YNIRs in terms of (a) a radical lack of consensus about their potential in production of messages in interpersonal communication; (b) the ways in which they are used to establish and maintain coherent conversation, and (c) to what extent commentary, and supplementary indirect responses can invoke goal (in) compatibility, and how this kind of conflict can prevent stagnation, stimulate interest, and finally contribute to “escalation” of mutual understanding. Although the functional horizons of general questions and the answers to them vary from context to context, the addressee can “control” his judgements and attitudes (apology, ignorance, consent, or refusal) by his deeper exposure to the situation, what, in the end, enables his affiliation with others. The other major concern of the paper is to specify the cases when the pragmatic interpretation of questionless responses is defined as unification of the semantic representation and the internal utterance context
Frequency and predictors of the lupus low disease activity state in a multi-national and multi-ethnic cohort
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Predictors of mortality in connective tissue disease-associated pulmonary arterial hypertension: a cohort study
Extent: 9p.Introduction: Pulmonary arterial hypertension (PAH) is a major cause of mortality in connective tissue disease (CTD). We sought to quantify survival and determine factors predictive of mortality in a cohort of patients with CTD-associated PAH (CTD-PAH) in the current era of advanced PAH therapy. Methods: Patients with right heart catheter proven CTD-PAH were recruited from six specialised PAH treatment centres across Australia and followed prospectively. Using survival methods including Cox proportional hazards regression, we modelled for all-cause mortality. Independent variables included demographic, clinical and hemodynamic data. Results: Among 117 patients (104 (94.9%) with systemic sclerosis), during 2.6 ± 1.8 (mean ± SD) years of follow-up from PAH diagnosis, there were 32 (27.4%) deaths. One-, two- and three-year survivals were 94%, 89% and 73%, respectively. In multiple regression analysis, higher mean right atrial pressure (mRAP) at diagnosis (hazard ratio (HR) = 1.13, 95% CI: 1.04 to 1.24, P = 0.007), lower baseline six-minute walk distance (HR = 0.64, 95% CI: 0.43 to 0.97, P = 0.04), higher baseline World Health Organization functional class (HR = 3.42, 95% CI: 1.25 to 9.36, P = 0.04) and presence of a pericardial effusion (HR = 3.39, 95% CI: 1.07 to 10.68, P = 0.04) were predictive of mortality. Warfarin (HR = 0.20, 95% CI: 0.05 to 0.78, P = 0.02) and combination PAH therapy (HR = 0.20, 95% CI: 0.05 to 0.83, P = 0.03) were protective. Conclusions: In this cohort of CTD-PAH patients, three-year survival was 73%. Independent therapeutic predictors of survival included warfarin and combination PAH therapy. Our findings suggest that anticoagulation and combination PAH therapy may improve survival in CTD-PAH. This observation merits further evaluation in randomised controlled trials.Gene-Siew Ngian, Wendy Stevens, David Prior, Eli Gabbay, Janet Roddy, Ai Tran, Robert Minson, Catherine Hill, Ken Chow, Joanne Sahhar, Susanna Proudman and Mandana Nikpou
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