https://nova.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Patient characteristics, short-term and long-term outcomes after incident heart failure admissions in a regional Australian setting https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:52044 Wed 27 Sep 2023 10:07:51 AEST ]]> The interactions between genetics and early childhood nutrition influence adult cardiometabolic risk factors https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45264 Wed 26 Oct 2022 18:09:09 AEDT ]]> Exceptional longevity and polygenic risk for cardiovascular health https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:45194 n = 294, 95–106 years; controls: n = 1105, 55–65 years) by assessing their polygenic risk scores (PRS) based on a genome wide association study (GWAS) threshold of p < 5 x 10−5. PRS were constructed using GWAS summary data from two exceptional longevity (EL) analyses and eight cardiovascular-related risk factors (lipids) and disease (myocardial infarction, coronary artery disease, stroke) analyses. A higher genetic risk for exceptional longevity (EL) was significantly associated with longevity in our sample (odds ratio (OR) = 1.19–1.20, p = 0.00804 and 0.00758, respectively). Two cardiovascular health PRS were nominally significant with longevity (HDL cholesterol, triglycerides), with higher PRS associated with EL, but these relationships did not survive correction for multiple testing. In conclusion, ELL individuals did not have significantly lower polygenic risk for the majority of the investigated cardiovascular health traits. Future work in larger cohorts is required to further explore the role of cardiovascular-related genetic variants in EL.]]> Wed 26 Oct 2022 14:27:30 AEDT ]]> Genome-wide association analyses of risk tolerance and risky behaviors in over 1 million individuals identify hundreds of loci and shared genetic influences https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47731 g| ~ 0.25 to 0.50) with a range of risky behaviors. Bioinformatics analyses imply that genes near SNPs associated with general risk tolerance are highly expressed in brain tissues and point to a role for glutamatergic and GABAergic neurotransmission. We found no evidence of enrichment for genes previously hypothesized to relate to risk tolerance.]]> Wed 25 Jan 2023 14:39:42 AEDT ]]> Door-to-needle time for thrombolysis: a secondary analysis of the TIPS cluster randomised controlled trial https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37320 Wed 24 Nov 2021 15:51:12 AEDT ]]> Delay of late-venous phase cortical vein filling in acute ischemic stroke patients: associations with collateral status https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30085 Wed 24 Nov 2021 15:50:06 AEDT ]]> Genetic analysis of over 1 million people identifies 535 new loci associated with blood pressure traits https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:44073 Wed 22 Mar 2023 15:46:47 AEDT ]]> Daily step count and the need for hospital care in subsequent years in a community-based sample of older Australians https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30882 Wed 17 Nov 2021 16:28:18 AEDT ]]> Genome-wide significant results identified for plasma apolipoprotein H levels in middle-aged and older adults https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:24759 -11). The results were replicated in an independent cohort, the Hunter Community Study (p < 0.002) (n = 313). Conditional and joint analysis (COJO) confirmed the association of the chromosomal 17 region with ApoH levels. The set of independent SNPs identified by COJO explained 23% of the variance. The relationships between the top SNPs and cardiovascular/lipid/cognition measures and diabetes were assessed in Sydney MAS, with suggestive results observed for diabetes and cognitive performance. However, replication of these results in the smaller OATS cohort was not found. This work provides impetus for future research to better understand the contribution of genetics to ApoH levels and its possible impacts on health.]]> Wed 15 Dec 2021 16:09:56 AEDT ]]> Genome analyses of >200,000 individuals identify 58 loci for chronic inflammation and highlight pathways that link inflammation and complex disorders https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37079 Wed 15 Dec 2021 16:07:28 AEDT ]]> Gene discovery and polygenic prediction from a genome-wide association study of educational attainment in 1.1 million individuals https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47126 Wed 14 Dec 2022 14:45:32 AEDT ]]> National Heart Foundation of Australia and Cardiac Society of Australia and New Zealand: Australian clinical guidelines for the diagnosis and management of atrial fibrillation 2018 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47107 Wed 14 Dec 2022 14:23:56 AEDT ]]> Serum L-arginine and endogenous methylarginine concentrations predict irritable bowel syndrome in adults: A nested case-control study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47086 0.05). Similar results were found for IBS subtypes. Higher serum L-arginine concentration had the strongest association with IBS diagnosis, with an odds ratio of 9.03 for those with serum L-arginine at the 75th (84 μmol/L) versus 25th (46 μmol/L) percentile (95% CI: 5.99–13.62). L-arginine had the best discriminative ability with a bias-adjusted area under the receiver operator characteristic curve of 0.859. Conclusions: Higher serum concentrations of L-arginine and endogenous methylarginines are strongly associated with IBS in adults.]]> Wed 14 Dec 2022 09:23:38 AEDT ]]> Genome-wide association study identifies 74 loci associated with educational attainment https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33716 Wed 12 Dec 2018 14:03:45 AEDT ]]> A novel MMP12 locus Is associated with large artery atherosclerotic stroke using a genome-wide age-at-onset informed approach https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:16959 -7), with independent replication in a second population (p = 0.0048, OR(95% CI) = 1.18(1.05–1.32); meta-analysis p = 2.6×10-8). The nearby gene, MMP12, was significantly over expressed in carotid plaques compared to atherosclerosis-free control arteries (p = 1.2×10-15; fold change = 335.6). Permutation analyses demonstrated improved significance for associations when accounting for age-at-onset in all four stroke phenotypes (p<0.001). Our results show that a covariate-informed design, by adjusting for age-at-onset of stroke, can detect variants not identified by conventional GWAS.]]> Wed 11 Apr 2018 17:21:31 AEST ]]> Serum methylarginines and spirometry-measured lung function in older adults https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14963 Wed 11 Apr 2018 17:03:18 AEST ]]> Confirmation of childhood acute lymphoblastic leukemia variants, ARID5B and IKZF1, and interaction with parental environmental exposures https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:16807 -9), and IKZF1 rs1110701 (OR 1.69, CI 1.42–2.02, p = 7.26 x 10-9). There was evidence of gene-environment interaction for risk genotype at IKZF1, whereby an apparently stronger genetic effect was observed if the mother took folic acid or if the father did not smoke prior to pregnancy (respective interaction P-values: 0.04, 0.05). There were no interactions of risk genotypes with age or sex (P-values >0.2). Our results evidence that interaction of genetic variants and environmental exposures may further alter risk of childhood ALL however, investigation in a larger population is required. If interaction of folic acid supplementation and IKZF1 variants holds, it may be useful to quantify folate levels prior to initiating use of folic acid supplements.]]> Wed 11 Apr 2018 16:52:33 AEST ]]> Colorectal cancer screening in Australia: a community-level perspective https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:22259 Wed 11 Apr 2018 16:19:15 AEST ]]> The validation of a self-report measure and physical activity of Australian Aboriginal and Torres Strait Islander and non-Indigenous rural children https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:10560 Wed 11 Apr 2018 16:11:16 AEST ]]> Transsulfuration pathway thiols and methylated arginines: the hunter community study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14939 Wed 11 Apr 2018 15:21:27 AEST ]]> Quality of life impact of cardiovascular and affective conditions among older residents from urban and rural communities https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:20024 Wed 11 Apr 2018 15:18:06 AEST ]]> The health services burden of heart failure: an analysis using linked population health data-sets https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13534 Wed 11 Apr 2018 14:07:47 AEST ]]> Contributors to suicidality in rural communities: beyond the effects of depression https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13531 Wed 11 Apr 2018 12:58:35 AEST ]]> Self-reported contacts for mental health problems by rural residents: predicted service needs, facilitators and barriers https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:16758 Wed 11 Apr 2018 12:47:14 AEST ]]> Risk factors and clinical features of craniocervical arterial dissection https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11800 3).]]> Wed 11 Apr 2018 11:11:13 AEST ]]> Comparison of HapMap and 1000 genomes reference panels in a large-scale genome-wide association study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30590 Wed 11 Apr 2018 10:46:14 AEST ]]> Poor food and nutrient intake among Indigenous and non-Indigenous rural Australian children https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:15182 Wed 11 Apr 2018 10:23:43 AEST ]]> Risk factors and clinical presentation of craniocervical arterial dissection : a prospective study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11796 Wed 11 Apr 2018 10:08:46 AEST ]]> Construct validity of the Assessment of Quality of Life - 6D (AQoL-6D) in community samples https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:17559 Wed 11 Apr 2018 09:42:10 AEST ]]> Seasonal variation in stroke in the Hunter Region, Australia: a 5-year hospital-based study, 1995-2000 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1820 =65 years of age. Case-fatality rates showed similar trends with a 1- to 2-month lag compared with attack rates. Conclusions: There is an increase in stroke attack rates and case-fatality rate from summer to winter in the Hunter Region, Australia. These trends are similar to those found in the Northern Hemisphere.]]> Wed 11 Apr 2018 09:35:35 AEST ]]> Serum thiols and cardiovascular risk scores: a combined assessment of transsulfuration pathway components and substrate/product ratios https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14826 Wed 11 Apr 2018 09:25:23 AEST ]]> Integrating and extending cohort studies: lessons from the eXtending Treatments, Education and Networks in Depression (xTEND) study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13741 Wed 11 Apr 2018 09:24:26 AEST ]]> Can a multicomponent multidisciplinary implementation package change physicians' and nurses' perceptions and practices regarding thrombolysis for acute ischemic stroke? An exploratory analysis of a cluster-randomized trial https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:37857 Wed 10 Nov 2021 15:12:46 AEDT ]]> Baseline collateral status and infarct topography in post-ischaemic perilesional hyperperfusion: an arterial spin labelling study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:32689 Wed 10 Nov 2021 15:04:19 AEDT ]]> Seasonal variation in spontaneous cervical artery dissection: comparing between UK and Australian sites https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33341 Wed 09 Mar 2022 16:04:07 AEDT ]]> Large-scale GWAS identifies multiple loci for hand grip strength providing biological insights into muscular fitness https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34208 −8) in combined analyses. A number of these loci contain genes implicated in structure and function of skeletal muscle fibres (ACTG1), neuronal maintenance and signal transduction (PEX14, TGFA, SYT1), or monogenic syndromes with involvement of psychomotor impairment (PEX14, LRPPRC and KANSL1). Mendelian randomization analyses are consistent with a causal effect of higher genetically predicted grip strength on lower fracture risk. In conclusion, our findings provide new biological insight into the mechanistic underpinnings of grip strength and the causal role of muscular strength in age-related morbidities and mortality.]]> Wed 04 Sep 2019 09:48:47 AEST ]]> Development of a diagnostic support tool for predicting cervical arterial dissection in primary care https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:55026  2 neurological features, demonstrated excellent discrimination: AUC of 0.953 (95% CI: 0.916, 0.987). A predictive scoring system (total score/7) identified an optimal threshold of ≥ 3 points, with a sensitivity of 87% and specificity of 79%. Conclusions: The study identified a diagnostic support tool with four variables to predict increased risk of CAD. Validation in a clinical sample is needed to confirm variables and refine descriptors to enable clinicians to efficiently apply the tool.Optimum cutoff scores of ≥ 3/7 points will help identify those in whom CAD should be considered and further investigation instigated. The potential impact of the tool is to improve early recognition of CAD in those with acute headache or neck pain, thereby facilitating more timely medical intervention, preventing inappropriate treatment, and improving patient outcomes.]]> Wed 03 Apr 2024 15:48:28 AEDT ]]> Suboptimal Use of Cardioprotective Medications in Patients With a History of Cancer https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42651 Wed 01 Mar 2023 15:00:54 AEDT ]]> Feasibility of internet-delivered mental health treatments for rural populations https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13827 Tue 24 Aug 2021 14:26:45 AEST ]]> Thrombolysis implementation intervention and clinical outcome: a secondary analysis of a cluster randomized trial https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42696 Tue 14 Nov 2023 14:44:08 AEDT ]]> Study of 300,486 individuals identifies 148 independent genetic loci influencing general cognitive function https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41379 Tue 04 Apr 2023 19:08:51 AEST ]]> Survival studies: Competing risks, immortality and censoring https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41383 Tue 02 Aug 2022 15:48:38 AEST ]]> Effectiveness of interventions to improve rates of intravenous thrombolysis using behaviour change wheel functions: a systematic review and meta-analysis https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:41188 75%) was observed for all the pooled analyses. Publication bias was also identified. Conclusion: There was no evidence for preferring one type of behaviour change intervention strategy, nor for including multiple strategies in improving thrombolysis rates. However, the study results should be interpreted with caution, as they display high heterogeneity and publication bias.]]> Thu 28 Jul 2022 11:05:36 AEST ]]> Investigation of a suicide ideation risk profile in people with co-occurring depression and substance use disorder https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:22920 Thu 27 Jan 2022 15:57:23 AEDT ]]> Multiethnic meta-analysis identifies ancestry-specific and cross-ancestry loci for pulmonary function https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35094 Thu 20 Jun 2019 15:56:20 AEST ]]> Outcomes following heart failure hospitalization in a regional Australian setting between 2005 and 2014 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:43342 Thu 15 Sep 2022 15:18:47 AEST ]]> Developing a multi-component immune model for evalusating the risk of respiratory illness in athletes https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34467 -1.min-1) underwent a clinical evaluation of known risk factors by a physician and comprehensive laboratory analysis of immune responses both at rest and after two cycling ergometer tests: 60 min at 65% VO₂max (LONG); and 6 x 3 min intervals at 90% VO₂max (INTENSE). Blood tests were performed to determine Epstein Barr virus (EBV) status and DNA was genotyped for a panel of cytokine gene polymorphisms. Saliva was collected for measurement of IgA and detection of EBV DNA. Athletes were then followed for 9 months for self-reported episodes of respiratory illness, with confirmation of the underlying cause by a sports physician. There were no associations with risk of respiratory illness identified for any parameter assessed in the clinical evaluations. The laboratory parameters associated with an increased risk of respiratory illnesses in highly-trained athletes were cytokine gene polymorphisms for the high expression of IL-6 and IFN-γ expression of EBV-DNA in saliva; and low levels of salivary IgA concentration. A genetic risk score was developed for the cumulative number of minor alleles for the cytokines evaluated. Athletes prone to recurrent respiratory illness were more likely to have immune disturbances that allow viral reactivation, and a genetic predisposition to pro-inflammatory cytokine responses to intense exercise.]]> Thu 14 Mar 2019 16:50:14 AEDT ]]> How can we improve stroke thrombolysis rates? A review of health system factors and approaches associated with thrombolysis administration rates in acute stroke care https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:27007 Thu 13 Jan 2022 10:29:53 AEDT ]]> Evaluating recruitment strategies for AUSPICE, a large Australian community-based randomised controlled trial https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:36636 Thu 09 Dec 2021 11:03:23 AEDT ]]> The effect of zinc supplementation on glucose homeostasis: a randomised double-blind placebo-controlled trial https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46986 Thu 06 Jul 2023 15:13:05 AEST ]]> Association of cortical vein filling with clot location and clinical outcomes in acute ischaemic stroke patients https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:29940 Thu 04 Nov 2021 10:39:20 AEDT ]]> The scratch test for determining the inferior hepatic margin https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34747 Thu 02 May 2019 11:16:10 AEST ]]> You’ve got to have friends: the predictive value of social integration and support in suicidal ideation among rural communities https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13803 Sat 24 Mar 2018 10:41:13 AEDT ]]> Longitudinal course and predictors of suicidal ideation in a rural community sample https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13802 Sat 24 Mar 2018 10:41:13 AEDT ]]> Incidental treatment effects of CBT on suicidal ideation and hopelessness https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13747 Sat 24 Mar 2018 10:39:17 AEDT ]]> An examination of outcome measures for pain and dysfunction in the cervical spine: a factor analysis https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:13303 Sat 24 Mar 2018 10:36:59 AEDT ]]> Prevalence of depressed mood versus anhedonia in older persons: implications for clinical practice https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:31408 Sat 24 Mar 2018 08:45:15 AEDT ]]> Understanding statistical principles in correlation, causation and moderation in human disease https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:31219 Sat 24 Mar 2018 08:43:21 AEDT ]]> Mental health in F-111 maintenance workers: the Study of Health Outcomes in Aircraft Maintenance Personnel (SHOAMP) general health and medical study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1064 Sat 24 Mar 2018 08:32:08 AEDT ]]> Neuropsychological health in F-111 aircraft maintenance workers https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:1119 Sat 24 Mar 2018 08:32:00 AEDT ]]> The use, misuse and abuse of dabigatran https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:14670 Sat 24 Mar 2018 08:19:12 AEDT ]]> Urban-rural influences on suicidality: gaps in the existing literature and recommendations for future research https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:12412 Sat 24 Mar 2018 08:14:53 AEDT ]]> The reliability and validity of a short FFQ among Australian Aboriginal and Torres Strait Islander and non-Indigenous rural children https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:10741 Sat 24 Mar 2018 08:14:29 AEDT ]]> Exposure to diagnostic radiological procedures and the risk of childhood acute lymphoblastic leukemia https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11344 Sat 24 Mar 2018 08:08:16 AEDT ]]> Peripheral neuropathy in military aircraft maintenance workers in Australia https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:18168 Sat 24 Mar 2018 08:04:35 AEDT ]]> Combined analysis of exon splicing and genome wide polymorphism data predict schizophrenia risk loci. https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:17373 Sat 24 Mar 2018 08:01:32 AEDT ]]> Genome-wide association analysis identifies six new loci associated with forced vital capacity https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:21233 P < 5 × 10−8) with FVC in or near EFEMP1, BMP6, MIR129-2–HSD17B12, PRDM11, WWOX and KCNJ2. Two loci previously associated with spirometric measures (GSTCD and PTCH1) were related to FVC. Newly implicated regions were followed up in samples from African-American, Korean, Chinese and Hispanic individuals. We detected transcripts for all six newly implicated genes in human lung tissue. The new loci may inform mechanisms involved in lung development and the pathogenesis of restrictive lung disease.]]> Sat 24 Mar 2018 07:53:01 AEDT ]]> Predictors of suicidal ideation in older people: a decision tree analysis https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:19175 Sat 24 Mar 2018 07:52:17 AEDT ]]> Genetics of hand grip strength in mid to late life https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:21021 N = 2088) and the Sydney Memory and Ageing Study (Sydney MAS, N = 541). Genotyping was undertaken using Affymetrix microarrays with imputation to HapMap2. Analyses were performed using linear regression. No genome-wide significant results were observed in HCS nor were any of the top signals replicated in Sydney MAS. Gene-based analyses in HCS identified two significant genes (ZNF295, C2CD2), but these results were not replicated in Sydney MAS. One out of eight SNPs previously associated with GS, rs550942, located near the CNTF gene, was significantly associated with GS (p = 0.005) in the HCS cohort only. Study differences may explain the lack of consistent results between the studies, including the smaller sample size of the Sydney MAS cohort. Our modest sample size also had limited power to identify variants of small effect. Our results suggest that similar to various other complex traits, many genetic variants of small effect size may influence GS. Future GWAS using larger samples and consistent measures may prove more fruitful at identifying genetic contributors for GS in middle-aged to older adults.]]> Sat 24 Mar 2018 07:50:32 AEDT ]]> Aiming for the truth: understanding the difference between validity and precision https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:29272 Sat 24 Mar 2018 07:39:16 AEDT ]]> Risk factors and clinical presentation of cervical arterial dissection: preliminary results of a prospective case-control study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:28407 Sat 24 Mar 2018 07:36:03 AEDT ]]> Immersion of bovine eyeballs after 1 hour in seawater does not result in elevation of postmortem vitreous humor sodium and chloride levels https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:30288 Sat 24 Mar 2018 07:33:36 AEDT ]]> Targeted arginine metabolomics: a rapid, simple UPLC-QToF-MS<sup>E</sup> based approach for assessing the involvement of arginine metabolism in human disease https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:28420 G-monomethyl-L-arginine (MMA), NG,. NG-dimethyl-L-arginine (ADMA) and NG,. NG'-dimethyl-L-arginine (SDMA), all of which have the capacity to alter NOS activity. Simultaneous assessment of these analytes, when assessing the impact of arginine metabolism in human disease states, is desirable. Methods: Analytes (ARG, ADMA, SDMA, MMA, HMA, CIT and ORN) were isolated from human plasma by solvent extraction, evaporated and reconstituted. Ultra-performance liquid chromatography (UPLC) was performed on a 150mm×2.1mm T3 HSS column using a gradient mobile phase comprising ammonium formate (10mM, pH3.8) in methanol (1% to 63%). Analytes were detected by time-of-flight mass spectrometry (Q-ToF-MS) in positive ion mode with electrospray ionisation (ESI+). Data were collected using MSE. Results: Solvent extraction provided high recovery (>95%). UPLC-QToF-MSE facilitated the separation and quantification of the 7 analytes in an analysis time of 6min. The approach has high sensitivity; LOQ range from 0.005µM (NMMA) to 0.25µM (ARG and ORN), and good precision; intra- and inter-day %RSD are <6% for all analytes. Conclusions: This approach provides the capacity to quantify 7 key compounds involved in ARG metabolism in a small sample volume, with a short total analysis time. These characteristics make this approach ideal for undertaking a comprehensive characterisation of this pathway in large data sets (e.g. population studies).]]> Sat 24 Mar 2018 07:29:06 AEDT ]]> GWAS of 126,559 individuals identifies genetic variants associated with educational attainment https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:28443 Sat 24 Mar 2018 07:29:00 AEDT ]]> Low-frequency and common genetic variation in ischemic stroke: the METASTROKE collaboration https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:25883 Sat 24 Mar 2018 07:25:54 AEDT ]]> Cancer incidence and mortality in aircraft maintenance workers https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:4616 Sat 24 Mar 2018 07:21:54 AEDT ]]> Influence of and optimal insulin therapy for a low-glycemic index meal in children with type 1 diabetes receiving intensive insulin therapy https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:4621 Sat 24 Mar 2018 07:21:53 AEDT ]]> A meta-analysis of 120 246 individuals identifies 18 new loci for fibrinogen concentration https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:23033 Sat 24 Mar 2018 07:13:48 AEDT ]]> High polygenic risk score for exceptional longevity is associated with a healthy metabolic profile https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:50640 Mon 31 Jul 2023 16:34:24 AEST ]]> Thrombolysis implementation in stroke (TIPS): evaluating the effectiveness of a strategy to increase the adoption of best evidence practice - protocol for a cluster randomised controlled trial in acute stroke care https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:16768 Mon 26 Nov 2018 15:27:36 AEDT ]]> Methyl-donor and cofactor nutrient intakes in the first 2-3 years and global DNA methylation at age 4: a prospective cohort study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:32077 0.05). Global DNA methylation levels in males were significantly higher than in females (median %5-mC: 1.82 vs. 1.03, males and females respectively, (P < 0.05)). Conclusion: No association was found between the intake of one-carbon metabolism nutrients during the early postnatal period and global DNA methylation levels at age four years. Higher global DNA methylation levels in males warrants further investigation.]]> Mon 23 Sep 2019 11:18:49 AEST ]]> Antiseptic Skin Preparation Agents to Prevent Surgical Site Infection in Colorectal Surgery: A 3-Armed Randomized Controlled Trial https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:48940 Mon 17 Apr 2023 14:57:53 AEST ]]> Polygenic prediction of educational attainment within and between families from genome-wide association analyses in 3 million individuals https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:46970 Mon 12 Dec 2022 16:19:30 AEDT ]]> Exploring the design of mHealth systems for health behavior change using mobile biosensors https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:35821 Mon 09 Dec 2019 16:18:28 AEDT ]]> Using Genetics to Inform Interventions Related to Sodium and Potassium in Hypertension https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:55070 Mon 08 Apr 2024 13:27:57 AEST ]]> Histopathologic findings of autoimmunity in thyroid, pituitary, and adrenal diseases in chronic hepatitis C postmortem cases https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11187 Mon 08 Apr 2019 11:10:00 AEST ]]> Review and meta-analysis of genetic polymorphisms associated with exceptional human longevity https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33670 Mon 01 Jul 2019 09:50:58 AEST ]]> Understanding statistical hypothesis tests and power https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:33959 Fri 25 Jan 2019 11:54:05 AEDT ]]> Sampling: how you choose people is as important as how you analyse their data https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34521 Fri 22 Mar 2019 12:59:23 AEDT ]]> Reducing Hospital Transfers from Aged Care Facilities: A Large-Scale Stepped Wedge Evaluation https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:42290 Fri 19 Aug 2022 14:58:36 AEST ]]> Genetic association and causal inference converge on hyperglycaemia as a modifiable factor to improve lung function https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:47250 Fri 16 Dec 2022 12:29:24 AEDT ]]> Global DNA methylation and cognitive and behavioral outcomes at 4 years of age: a cross-sectional study https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:40011 p > .05), though the estimates of effect were consistently negative. Global DNA methylation levels in males were significantly higher than in females (median %5mC: 1.82 vs. 1.03, males and females, respectively, (p < .05)). Conclusion: No association was found between global DNA methylation and child cognition and behavior; however given the small sample, this study should be pooled with other cohorts in future meta-analyses.]]> Fri 15 Jul 2022 10:09:55 AEST ]]> Assessment of restored kidney transplantation including the use of wider criteria for accepting renal donors after cancer excision. https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:49387 60 years old and accepted onto the National Organ Matching Service. This RKT Group was divided into donor renal cancers ≤30 mm and >30–≤50 mm. Adverse event profiles for RKT recipients were compared with 22 standard live donor recipients using logistic regression analyses. Recipient and transplant survivals for RKT were compared with 2050 controls from Australian New Zealand Dialysis Transplant Registry using Cox regression models. To increase statistical power for survival analyses, data from 25 RKT recipients from Princess Alexandra Hospital, Brisbane were added, thus creating 48 RKT recipients.Results: There were no significant differences in mortality, transplant failure nor AEs between the 2 cancer Groups. RKT increased the risks of Adverse event profiles (odds ratio: 6.48 [2.92–15.44]; P < 0.001). RKT reduced mortality risk by 30% (hazard ratio [HR]: 0.70 [0.36–1.07]; P = 0.299) compared with those continuing on the transplant list who may or may not be transplanted. RKT significantly reduced mortality risk for those remaining on dialysis (HR: 2.86 [1.43–5.72]; P = 0.003). Transplant survival for RKT was reduced compared with control deceased donor (HR: 0.42 [0.21–0.83]; P = 0.013) and live donor transplants (HR: 0.33 [0.02–0.86]; P =0.023).Conclusions:The use of larger carefully selected cancer-resected kidneys for transplantation appears safe and effective. RKT confers a possible survival advantage compared with waiting for transplantation, an increased survival compared with those remaining on dialysis but reduced transplant survival.]]> Fri 12 May 2023 14:27:13 AEST ]]>