1,490 research outputs found
Ulnar variance and load transfer in the forearm during maximal grip: a finite element study
The aim of the study was to simulate the effects, ulnar variance has on the load distribution to the radius and ulna during maximal gripping and compare to previously published measurements, which used load cells placed on the forearm bones to measure the load ratio
Evaluation of patient perception towards dynamic health data sharing using blockchain based digital consent with the Dovetail digital consent application : a cross sectional exploratory study
Background
New patient-centric integrated care models are enabled by the capability to exchange the patientâs data amongst stakeholders, who each specialise in different aspects of the patientâs care. This requires a robust, trusted and flexible mechanism for patients to offer consent to share their data. Furthermore, new IT technologies make it easier to give patients more control over their data, including the right to revoke consent. These characteristics challenge the traditional paper-based, single-organisation-led consent process. The Dovetail digital consent application uses a mobile application and blockchain based infrastructure to offer this capability, as part of a pilot allowing patients to have their data shared amongst digital tools, empowering patients to manage their condition within an integrated care setting.
Objective
To evaluate patient perceptions towards existing consent processes, and the Dovetail blockchain based digital consent application as a means to manage data sharing in the context of diabetes care.
Method
Patients with diabetes at a General Practitioner practice were recruited. Data were collected using focus groups and questionnaires. Thematic analysis of the focus group transcripts and descriptive statistics of the questionnaires was performed.
Results
There was a lack of understanding of existing consent processes in place, and many patients did not have any recollection of having previously given consent. The digital consent application received favourable feedback, with patients recognising the value of the capability offered by the application. Patients overwhelmingly favoured the digital consent application over existing practice.
Conclusions
Digital consent was received favourably, with patients recognising that it addresses the main limitations of the current process. Feedback on potential improvements was received. Future work includes confirmation of results in a broader demographic sample and across multiple conditions
Towards an Integrated Primary and Secondary HIV Prevention Continuum for the United States: a Cyclical Process Model
Introduction: Every new HIV infection is preventable and every HIV-related death is avoidable. As many jurisdictions around the world endeavour to end HIV as an epidemic, missed HIV prevention and treatment opportunities must be regarded as public health emergencies, and efforts to quickly fill gaps in service provision for all people living with and vulnerable to HIV infection must be prioritized.
Discussion: We present a novel, comprehensive, primary and secondary HIV prevention continuum model for the United States as a conceptual framework to identify key steps in reducing HIV incidence and improving health outcomes among those vulnerable to, as well as those living with, HIV infection. We further discuss potential approaches to address gaps in data required for programme planning, implementation and evaluation across the elements of the HIV prevention continuum.
Conclusions: Our model conceptualizes opportunities to monitor and quantify primary HIV prevention efforts and, importantly, illustrates the interplay between an outcomes-oriented primary HIV prevention process and the HIV care continuum to move aggressively forward in reaching ambitious reductions in HIV incidence. To optimize the utility of this outcomes-oriented HIV prevention continuum, a key gap to be addressed includes the creation and increased coordination of data relevant to HIV prevention across sectors
Derived neutrophil to lymphocyte ratio as a prognostic factor in patients with advanced colorectal cancer according to RAS and BRAF status: a post-hoc analysis of the MRC COIN study.
The phase III Continuous or Intermittent (COIN) trial failed to show a benefit in overall survival (OS) of cetuximab in combination with chemotherapy for patients with metastatic colorectal cancer. High derived neutrophil to lymphocyte ratio (dNLR) has been shown to be prognostic in patients with metastatic colorectal cancer. The aim of this analysis is to evaluate dNLR as a predictive biomarker of the survival according to RAS and BRAF mutations status within the COIN trial. A post-hoc exploratory analysis of the COIN trial arms A and B was carried out. All patients with available white blood cell and neutrophil data were analysed. The dNLR was calculated using a formula that has previously shown predictive power in cancer patients: dNLR=ANC/(WBC-ANC). A high dNLR was defined as a value of 2.2 or more. dNLR was correlated with clinical outcomes using Kaplan-Meier and Cox regression analysis. A total of 1603 patients were assigned to the oxaliplatin-based chemotherapy (arm A, N=815) or oxaliplatin-based chemotherapy plus cetuximab (arm B, N=815) arms. There was a strong association between dNLR level and overall survival (OS) using Kaplan-Meier analysis. In all mutation groups, dNLR less than 2.2 was associated with better OS compared to dNLR of 2.2 or more. The median OS in patients with wild-type disease (dNLR<2.2 vs. dNLRâ„2.2) was 22.8 versus 13.1 months [hazard ratio (HR)=1.33]; 16.9 versus 11.8 months (HR=1.36) in patients with RAS mutant tumours; and 12.6 versus 6.8 months (HR=1.67) in patients with BRAF mutant tumours. In patients with dNLR less than 2.2, the median OS was 19.2 months in arm A compared to 18.0 months in arm B (HR=1.11). Among patients with dNLR greater than or equal to 2.2, the median OS was 13.0 months in arm A compared with 13.1 months in arm B (HR=0.96). dNLR is strongly prognostic for survival in all mutation groups. dNLR does not predict for benefit from the addition of cetuximab
JETstream Volume 1 Issue 2
The JET Library kicked off 2017 with an always well-received event, our annual âBeat the Blahsâ Party, sponsored by the Office of the President. This year, we featured a dessert table where members of the Molloy Community brought in their favorite desserts to share with everyone. We also held our first JET Bake-off, with Karen Cusumano, Executive Assistant in the Presidentâs Office, being awarded a âCertificate in Excellence in Bakingâ with her âClassic Sour Cream Cheese Cake.â Requests have been received by the library asking if she will share her recipe! Although we definitely did enjoy a delicious feast, I think the consensus is unanimous when I say that the best part of the event was being able to spend time with everyone, engaging in good conversation, laughter and blintzes. In 2016, we welcomed several new members to the library; Tabitha Ochtera, Shikha Joseph and Sean Williams whom we look forward to you getting to know in our âWelcoming our New Additionsâ section. Theresa Rienzo, Associate Librarian Health Sciences and Head of Patron Services, an integral member of the JET Library is featured in our âSpotlightâ article. A new column titled âWhat we are readingâ was added, where our librarians and staff share their opinions on books from our collection. Among the various other articles, we would like to bring special attention to the âDid you know?â article where you can learn more about a new resource recently activated in the Ovid database, as well as SWANK, one of JET Libraryâs streaming video databases. Last but certainly not least, meet JET Libraryâs Official Mascot, Luciano
Derived neutrophil lymphocyte ratio is predictive of survival from intermittent therapy in advanced colorectal cancer: a post hoc analysis of the MRC COIN study
BACKGROUND: The phase III COntinuous or INtermittent (COIN) trial failed to show non-inferiority of intermittent compared with continuous chemotherapy for advanced colorectal cancer in overall survival (OS). The present analysis evaluated whether the derived neutrophil to lymphocyte ratio (dNLR) could predict the effect of intermittent vs continuous chemotherapy on OS in patients with advanced colorectal cancer. METHODS: A post hoc exploratory analysis of COIN arms A and C was performed. Landmark analysis was conducted on all patients with available WBC and neutrophils data. The dNLR was calculated using a formula which has previously demonstrated predictive power in cancer patients: dNLR=ANC/(WBCâANC). A high dNLR was defined using a cut-off value of â©Ÿ2.22. Derived neutrophil to lymphocyte ratio was then correlated with clinical outcomes. Survival curves were generated based on dNLR using the KaplanâMeier method. Comparison between groups was performed using Cox regression. RESULTS: A total of 1630 patients were assigned to the continuous (N=815) or intermittent (N=815) arms. There was a strong association between dNLR level and OS. The median survival times in the ITT population were 18.6 months and 12.5 months for patients with low and high dNLR, respectively (HR=1.70; 95% CI=1.52â1.90; P<0.001). The estimate of the hazard ratio did not alter substantially (HR=1.54) after adjusting for treatment, tumour status, number of metastatic sites, alkaline phosphate and platelet count. CONCLUSIONS: Derived neutrophil to lymphocyte ratio is strongly prognostic for survival in the COIN intermittent vs continuous treatment arms. Derived neutrophil to lymphocyte ratio does not predict for detrimental survival in patients treated with intermittent therapy
JETstream Volume 2 Issue 1
Although summer tends to be when we might experience a bit of a respite on campus, that was certainly not the case here at the JET Library. The library underwent some significant renovations to two of our instruction rooms, Educational Resource Center, and the Suffolk Extension Center Library. We also acquired several new products and technologies such as the DigitalCommons and BrowZine, which you may read about further in this issue of JETstream. At the start of the semester, we continued our annual tradition of hosting the JET Library Pizza Party to welcome the incoming freshmen, as well as our returning students where a great time was had by all! During the course of the semester, many of our students participate in a scavenger hunt. This is one of the tasks as part of their FST class, where students get to familiarize themselves with different areas and services of the library, while having fun bonding with their classmates
Development of an invasively monitored porcine model of acetaminophen-induced acute liver failure
Background: The development of effective therapies for acute liver failure (ALF) is limited by our knowledge of the pathophysiology of this condition, and the lack of suitable large animal models of acetaminophen toxicity. Our aim was to develop a reproducible invasively-monitored porcine model of acetaminophen-induced ALF.
Method: 35kg pigs were maintained under general anaesthesia and invasively monitored. Control pigs received a saline infusion, whereas ALF pigs received acetaminophen intravenously for 12 hours to maintain blood concentrations between 200-300 mg/l. Animals surviving 28 hours were euthanased.
Results: Cytochrome p450 levels in phenobarbital pre-treated animals were significantly higher than non pre-treated animals (300 vs 100 pmol/mg protein). Control pigs (n=4) survived 28-hour anaesthesia without incident. Of nine pigs that received acetaminophen, four survived 20 hours and two survived 28 hours. Injured animals developed hypotension (mean arterial pressure; 40.8+/-5.9 vs 59+/-2.0 mmHg), increased cardiac output (7.26+/-1.86 vs 3.30+/-0.40 l/min) and decreased systemic vascular resistance (8.48+/-2.75 vs 16.2+/-1.76 mPa/s/m3). Dyspnoea developed as liver injury progressed and the increased pulmonary vascular resistance (636+/-95 vs 301+/-26.9 mPa/s/m3) observed may reflect the development of respiratory distress syndrome. Liver damage was confirmed by deterioration in pH (7.23+/-0.05 vs 7.45+/-0.02) and prothrombin time (36+/-2 vs 8.9+/-0.3 seconds) compared with controls. Factor V and VII levels were reduced to 9.3 and 15.5% of starting values in injured animals. A marked increase in serum AST (471.5+/-210 vs 42+/-8.14) coincided with a marked reduction in serum albumin (11.5+/-1.71 vs 25+/-1 g/dL) in injured animals. Animals displayed evidence of renal impairment; mean creatinine levels 280.2+/-36.5 vs 131.6+/-9.33 mumol/l. Liver histology revealed evidence of severe centrilobular necrosis with coagulative necrosis. Marked renal tubular necrosis was also seen. Methaemoglobin levels did not rise >5%. Intracranial hypertension was not seen (ICP monitoring), but there was biochemical evidence of encephalopathy by the reduction of Fischer's ratio from 5.6 +/- 1.1 to 0.45 +/- 0.06.
Conclusion: We have developed a reproducible large animal model of acetaminophen-induced liver failure, which allows in-depth investigation of the pathophysiological basis of this condition. Furthermore, this represents an important large animal model for testing artificial liver support systems
- âŠ