465 results match your criteria: "Royal Perth Hospital Unit.[Affiliation]"

Editorial: Dietary nitrate: friend or foe.

Front Nutr

November 2024

School of Medical and Health Sciences, Nutrition & Health Innovation Research Institute, Edith Cowan University, Joondalup, WA, Australia.

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Introduction: The autoimmune encephalitides (AE) are a heterogeneous group of neurological disorders with significant morbidity and healthcare costs. Despite advancements in understanding their pathophysiology, uncertainties persist regarding long-term prognosis and optimal management. This study aims to address these gaps, focusing on immunotherapeutic strategies, neoplastic associations and functional outcomes.

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Effects of sodium-glucose co-transporter inhibitors on individual clinical endpoints and quality of life.

ESC Heart Fail

November 2024

Department of Internal Medicine B (Cardiology, Angiology, Pneumology and Internal Intensive Care Medicine), University Medicine Greifswald, Greifswald, Germany.

Aims: Sodium-glucose co-transporter inhibitors (SGLTis) have cardiovascular protective effects. We aimed to assess the effects of SGLTis on individual hard clinical endpoints and quality of life (QoL) in patients with cardiovascular risk factors.

Methods And Results: Data was searched in PubMed, Embase, Cochrane Library and clinicaltrials.

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Withdrawal notice to: Impact of Provision of Abdominal Aortic Calcification Results on Cardiovascular Risk Reducing Behaviours: A 12-Week RCT [Heart, Lung and Circulation, Volume 33, Supplement 4, August 2024, Page S357].

Heart Lung Circ

November 2024

Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia; School of Medicine, University of Western Australia, Perth, WA, Australia; Centre for Kidney Research, Children's Hospital at Westmead, School of Public Health, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia.

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3D Map Combined with Transthoracic Echocardiography for Ablation of Premature Ventricular Contractions/Ventricular Arrhythmia from Papillary Muscle: A Technical Report.

J Clin Med

October 2024

Department of Internal Medicine B (Cardiology, Angiology, Pneumology and Internal Intensive Care Medicine), University Medicine Greifswald, Ferdinand-Sauerbruch-Straße, 17475 Greifswald, Germany.

Article Synopsis
  • The procedure faces challenges including unique heart anatomy, catheter instability, and pinpointing the arrhythmia's origin.
  • The study combined transthoracic echocardiography (TTE) with 3D mapping to improve localization and successfully ablate PVCs originating from the papillary muscles.
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Cardiovascular diseases (CVD) continue to be the leading cause of deaths and disability worldwide and the major contributor is hypertension. Despite all the improvements in detecting hypertension together with technological advances and affordable, efficacious and relatively free of adverse effects anti-hypertensive agents, we continue to struggle to prevent the onset of hypertension and to control blood pressure (BP) to acceptable targets. The poor control of hypertension is commonly due to non-adherence to medications.

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20-HETE, Blood Pressure, and Vascular Stiffness in Young Adults.

Hypertension

December 2024

Medical School, Royal Perth Hospital Unit, University of Western Australia, Perth, Australia (A.E.B., S.S., L.J.B., T.A.M.).

Article Synopsis
  • This study explored the role of cytochrome-P450 eicosanoids, specifically 20-HETE and EETs, in regulating blood pressure and vascular stiffness among 1,054 young adults.
  • Researchers found that higher plasma levels of 20-HETE were positively associated with increased systolic blood pressure and vascular stiffness measurements, even after accounting for other factors like sex and body mass index.
  • The study concluded that 20-HETE significantly influences blood pressure and vascular health in young adults, while EETs did not show a significant impact in these areas.
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Plasma levels of polyunsaturated fatty acids and multiple sclerosis susceptibility in a US case-control study.

Mult Scler Relat Disord

December 2024

Institute for Physical Activity and Nutrition (IPAN), School of Exercise and Nutrition Sciences, Deakin University, Geelong, VIC, Australia; Curtin School of Population Health, Curtin University, Perth, WA, Australia. Electronic address:

Background: There are plausible mechanisms, yet mixed evidence, that higher polyunsaturated fatty acids (PUFAs) levels reduces the risk of multiple sclerosis (MS). Prior studies relied on dietary surveys to estimate levels.

Objective: We tested associations between plasma levels of n-3 and n-6 PUFAs and likelihood of MS onset or clinically isolated syndrome (CIS) using data from the MS Sunshine Study, a case-control study conducted in the United States.

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Article Synopsis
  • Primary aldosteronism is linked to increased cardiovascular risks and can affect young adults' arterial health and heart structure before clinical symptoms appear.
  • This study used data from the Raine Study, analyzing young adults at ages 17 and 27 to investigate the relationships between aldosterone levels, arterial stiffness, and left ventricular mass index (LVMI).
  • Results showed that females had higher aldosterone-to-renin ratios than males, and notable associations were found between aldosterone levels and LVMI in males at age 27.
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WITHDRAWN: Impact of Provision of Abdominal Aortic Calcification Results on Cardiovascular Risk Reducing Behaviours: A 12-Week RCT.

Heart Lung Circ

August 2024

Nutrition & Health Innovation Research Institute, School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia; School of Medicine, University of Western Australia, Perth, WA, Australia; Centre for Kidney Research, Children's Hospital at Westmead, School of Public Health, Sydney Medical School, The University of Sydney, Sydney, NSW, Australia.

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Objectives: Current American Academy of Pediatrics (AAP) and European Society of Hypertension (ESH) thresholds defining hypertension in children use blood pressure (BP) normalised to age, sex and height. However, scare data exists regarding the relative importance of these variables to accurately model the 95th quantile of BP. We hypothesised that height alone may fit the population data equally well compared to more complex definitions.

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Background: Higher cruciferous vegetable intake is associated with lower cardiovascular disease risk in observational studies. The pathways involved remain uncertain. We aimed to determine whether cruciferous vegetable intake (active) lowers 24-h brachial systolic blood pressure (SBP; primary outcome) compared to root and squash vegetables (control) in Australian adults with mildly elevated BP (SBP 120-160 mmHg inclusive).

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Sympathetic Activation Promotes Sodium Glucose Co-Transporter-1 Protein Expression in Rodent Skeletal Muscle.

Biomedicines

July 2024

Dobney Hypertension Centre, School of Biomedical Sciences-Royal Perth Hospital Unit, University of Western Australia, and Royal Perth Hospital Research Foundation, Crawley, WA 6000, Australia.

Article Synopsis
  • Hyperactivation of the sympathetic nervous system (SNS) is associated with obesity, hypertension, and type 2 diabetes, and leads to increased norepinephrine (NE) levels which may affect sodium-glucose transport proteins.
  • The study investigates the expression of sodium-dependent glucose cotransporters SGLT1 and SGLT2 in skeletal muscle, finding that NE significantly elevates SGLT1 levels in skeletal muscle cells.
  • Treatment with the dual inhibitor Sotagliflozin in neurogenically hypertensive mice effectively reduced blood pressure, suggesting that targeting SGLT1 could help manage conditions driven by high SNS activity, warranting further clinical studies.
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Arterial hypertension is a growing burden worldwide, leading to over 10.8 million deaths each year. Before the outbreak of the COVID-19 pandemic, cardiovascular diseases were the main cause of death in Ecuador.

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May Measurement Month 2021: an analysis of blood pressure screening results from Australia.

Eur Heart J Suppl

June 2024

Dobney Hypertension Centre, Medical School-Royal Perth Hospital Unit/Royal Perth Hospital Research Foundation, University of Western Australia, Level 3, MRF Building, Rear 50 Murray St, Perth, WA 6000, Australia.

May Measurement Month (MMM) is a global and national blood pressure (BP) screening campaign initiated by the International Society of Hypertension to improve awareness of BP worldwide. This study reports on the findings of the MMM21 campaign in Australia. Adult participants (≥18 years) were screened through opportunistic sampling across Australia between 1 May and 30 November 2021.

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Effects of increased nitrate intake from beetroot juice on blood markers of oxidative stress and inflammation in older adults with hypertension.

Free Radic Biol Med

September 2024

Department of Nutritional Sciences, Research Platform Active Ageing, University of Vienna, Vienna, Austria; Research Platform Active Ageing, University of Vienna, Vienna, Austria; Centre for Health Sciences and Medicine, University for Continuing Education Krems, Krems, Austria. Electronic address:

Background: Vascular oxidative stress and low-grade inflammation are important in the pathology of cardiovascular disorders, including hypertension. Cell culture and animal studies suggest that inorganic dietary nitrate may attenuate oxidative stress and inflammation through nitric oxide (NO), and there is a need to investigate whether this translates to humans.

Aim: In this randomised, placebo-controlled crossover study, by measuring a combination of multiple blood biomarkers, we evaluated whether previously reported benefits of dietary nitrate translate to a reduced oxidative stress and an improved inflammation status in 15 men and women (age range: 56-71 years) with treated hypertension.

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Recent developments in the management of resistant hypertension: focus on endothelin receptor antagonists.

Future Cardiol

October 2024

Dobney Hypertension Centre, Medical School - Royal Perth Hospital Unit & RPH Research Foundation, The University of Western Australia, Perth, Western Australia, Australia.

Article Synopsis
  • Resistant hypertension is when standard treatment doesn't effectively lower blood pressure, leading to increased health risks.
  • The endothelin pathway is critical in this condition, but past attempts to use endothelin antagonists were limited.
  • A recent study on aprocitentan, a new dual endothelin-receptor antagonist, showed significant BP reduction and safety, leading to its FDA approval, especially benefiting older patients and those with kidney issues.
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High blood pressure (BP) is the leading preventable risk factor for death, but only one in three patients achieve target BP control. A key contributor to this problem is poor population awareness of high BP, as the majority of patients are asymptomatic. The Shop-To-Stop Hypertension study is a multicenter, cluster-randomized controlled trial to identify, refer and follow adults in need of hypertension care, whilst raising population-wide awareness.

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Hypertension is often linked with metabolic risk factors that share common pathophysiological pathways. Despite wide-spread availability of multiple drug classes, optimal blood pressure (BP) control remains challenging. Increased central sympathetic outflow is frequently neglected as a critical regulator of both circulatory and metabolic pathways and often remains unopposed therapeutically.

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Single-pill combination therapy containing four quarter-dose medications for high blood pressure improves BP control compared to monotherapy, however patient-reported acceptance of the quadpill as a treatment strategy remains undescribed. We collected within-trial feedback and interviewed participants from the quadruple ultra-low-dose treatment for hypertension (QUARTET) trial to characterise patient attitudes to this intervention. All trial participants were asked about ease and preference for the quadpill and provided an opportunity to give further comments on the trial at 12 weeks (trial primary endpoint) and 52 weeks extended follow-up.

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Background/objectives: Artificial intelligence can assist with ocular image analysis for screening and diagnosis, but it is not yet capable of autonomous full-spectrum screening. Hypothetically, false-positive results may have unrealized screening potential arising from signals persisting despite training and/or ambiguous signals such as from biomarker overlap or high comorbidity. The study aimed to explore the potential to detect clinically useful incidental ocular biomarkers by screening fundus photographs of hypertensive adults using diabetic deep learning algorithms.

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Diet to Stop Hypertension: Should Fats be Included?

Curr Hypertens Rep

October 2024

Medical School, Royal Perth Hospital Unit, University of Western Australia, Medical Research Foundation Building (M570), GPO Box X2213, Perth, WA, 6847, Australia.

Purpose Of Review: International guidelines emphasize advice to incorporate dietary measures for the prevention and in the management of hypertension. Current data show that modest reductions in weight can have an impact on blood pressure. Reducing salt and marine oils have also shown consistent benefit in reducing blood pressure.

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S-Methyl Cysteine Sulfoxide Does Not Ameliorate Weight Gain or Hyperlipidemia in Mice Fed a High-Fat Diet.

Mol Nutr Food Res

May 2024

Nutrition and Health Innovation Research Institute, School of Medical and Health Science, Royal Perth Hospital Research Foundation, Edith Cowan University, Perth, Western Australia, 6000, Australia.

Scope: Higher intake of cruciferous and allium vegetables is associated with lower cardiometabolic risk. Little research has investigated the cardiometabolic effects of S-methyl cysteine sulfoxide (SMCSO), found abundant in these vegetables. This study hypothesizes that SMCSO will blunt development of metabolic syndrome features in mice fed high-fat feed.

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