Publications by authors named "Byrnes E"

Lipocalin-2 (LCN2), a hormone produced by adipocytes, osteoblasts, and renal tubular cells, is implicated in age-related diseases, including cardio-metabolic disease. To understand the role LCN2 may play in pathological states, we first need to elucidate the relationship between circulating LCN2 with indices of cardio-metabolic health during "normal" aging. This study examined the relationship between serum levels of LCN2, age, and cardio-metabolic measures across the adult lifespan in males and females.

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Blood coagulation is a highly regulated injury response that features polymerization of fibrin fibers to prevent the passage of blood from a damaged vascular endothelium. A growing body of research seeks to monitor coagulation in microfluidic systems but fails to capture coagulation as a response to disruption of the vascular endothelium. Here we present a device that allows compression injury of a defined segment of a microfluidic vascular endothelium and the assessment of coagulation at the injury site.

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Background: The opioid epidemic is leading to increased opioid use in adolescent populations. A growing body of evidence suggests that taking opioids during adolescence can disrupt normal development and impact future offspring. This study investigates the impact of paternal morphine exposure during adolescence on the hypothalamic-pituitary-adrenal (HPA) axis and release of endorphins in the offspring.

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Article Synopsis
  • Methadone and buprenorphine are used during pregnancy to help women with opioid use disorder, but babies exposed to these medications may experience neonatal opioid withdrawal syndrome (NOWS), affecting their feeding behavior.
  • A study involving pregnant female rats showed that offspring exposed to either drug had lower weights compared to those given saline, with buprenorphine offspring maintaining lower weights longer than those exposed to methadone.
  • Gene expression analysis indicated that while both drugs had similar effects, methadone-exposed offspring exhibited significantly reduced levels of the gene proopiomelanocortin (Pomc), suggesting different developmental impacts between the two medications.
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Introduction: Despite its reach, very limited evidence exists on the effectiveness of real-time video counselling for smoking cessation (e.g. via Skype).

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Disseminated intravascular coagulation (DIC) is a pathologic state that follows systemic injury and other diseases. Often a complication of sepsis or trauma, DIC causes coagulopathy associated with paradoxical thrombosis and hemorrhage. DIC upregulates the thrombotic pathways while simultaneously downregulating the fibrinolytic pathways that cause excessive fibrin deposition, microcirculatory thrombosis, multiorgan dysfunction, and consumptive coagulopathy with excessive bleeding.

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Opioid use disorder (OUD) is a chronic condition associated with long-lasting molecular and behavioral changes. Animals with prolonged access to opioids develop behaviors similar to human OUD. Identifying associated molecular changes can provide insight to underpinnings that lead to or maintain OUD.

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Rationale: Transgenerational effects of preconception morphine exposure in female rats have been reported which suggest that epigenetic modifications triggered by female opioid exposure, even when that exposure ends several weeks prior to pregnancy, has significant ramifications for their future offspring.

Objective: The current study compares two mouse strains with well-established genetic variation in their response to mu opioid receptor agonists, C57BL/6J (BL6) and 129S1/svlmJ (129) to determine whether genetic background modifies the impact of preconception opioid exposure.

Methods: Adolescent females from both strains were injected daily with morphine for a total of 10 days using an increasing dosing regimen with controls receiving saline.

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Article Synopsis
  • Cysticercosis is an infection caused by the larval form of a pork tapeworm, increasing in developed countries due to more travel; neurocysticercosis occurs when cysts invade the nervous system and can vary in severity.
  • Diagnosis involves clinical evaluation, serology, and neuroimaging, while treatment may include antiparasitic drugs, surgery, or other methods.
  • A case study of a 52-year-old man with severe migraines linked to eating undercooked bacon revealed neurocysticercosis, highlighting the need to consider this condition in patients with neurological symptoms, even without clear risk factors.
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In both people and animals, exposure to adverse experiences early in life can alter neurodevelopment and lead to long-term behavioral effects, including effects on reward processing. In the current study, we use a well-validated rodent model of maternal neglect, maternal separation (MS), to investigate the impact of early life adversity on reward learning and motivation and identify associated modifications in cellular activation in reward-relevant areas. Litters of Long-Evans rats were separated from the dam for either 15 min (brief) or 180 min (prolonged)/day from postnatal day (PND)2 to PND14.

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Objective: To examine the association between high-sensitivity cardiac troponin I (hs-cTnI), a biomarker of myocardial injury, muscle function decline and 14.5-year fall-related hospitalisation risk in women aged over 70 years.

Methods: 1179 ambulatory community-dwelling women aged over 70 years with subclinical levels of hs-cTnI (ie, <15.

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Lipocalin-2 (LCN2) is released by several cell types including osteoblasts and adipocytes and has been suggested as a marker of renal dysfunction, metabolic syndrome (MetS) and type 2 diabetes (T2D). Whether LCN2 is linked to these diseases in older women remains unknown. This study investigated whether LCN2 is related to features of MetS and T2D in older women.

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Background And Objective: The Low-Dose Colchicine-2 (LoDoCo2) trial showed that 2-4 years exposure to colchicine 0.5 mg once daily reduced the risk of cardiovascular events in patients with chronic coronary artery disease. The potential effect of years-long exposure to colchicine on renal or liver function and creatine kinase (CK) has not been systematically evaluated and was investigated in this LoDoCo2 substudy.

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This study examined the association between dietary Vitamin K1 intake with fracture-related hospitalizations over 14.5 years in community-dwelling older Australian women ( = 1373, ≥70 years). Dietary Vitamin K1 intake at baseline (1998) was estimated using a validated food frequency questionnaire and a new Australian Vitamin K nutrient database, which was supplemented with published data.

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Diving behaviour of 'surfacers' such as sea snakes, cetaceans and turtles is complex and multi-dimensional, thus may be better captured by multi-sensor biologging data. However, analysing these large multi-faceted datasets remains challenging, though a high priority. We used high-resolution multi-sensor biologging data to provide the first detailed description of the environmental influences on flatback turtle () diving behaviour, during its foraging life-history stage.

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Assisted dying is a divisive topic and draws both lamenting and approving commentary from political, medical, legal, and philosophical domains. This systematic review and qualitative evidence synthesis aims to identify the factors that healthcare professionals experience when working within assisted dying frameworks. PRISMA guidelines for systematic reviews were followed.

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People living with mental health conditions experience a significantly reduced life expectancy compared to people without, largely linked to health risk behaviours and associated chronic disease. Community managed organisations (CMOs) represent an important setting in which to address health risk behaviours among people with mental health conditions. However, little is known about how these behaviours (smoking, poor nutrition, alcohol consumption, inadequate physical activity, poor sleep: SNAPS) are being addressed in this setting.

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Adolescence represents a period of significant neurodevelopment during which adverse experiences can lead to prolonged effects on disease vulnerability, including effects that can impact future offspring. Adolescence is a common period for the initiation of drug use, including the use of opioids. Beyond effects on central reward, opioids also impact glucose metabolism, which can impact the risk of diabetes.

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Opioid use and abuse remain a significant public health problem, particularly in the United States. Indeed, it is estimated that up to 10% of youths (age 12-18) have taken opioids illicitly. A growing body of evidence suggests that this level of widespread opioid exposure can have effects that extend to subsequent generations.

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Background: Smoking tobacco, poor nutrition, risky alcohol use, and physical inactivity (SNAP) behaviors tend to cluster together. Health benefits may be maximized if interventions targeted multiple health risk behaviors together rather than addressing single behaviors. The internet has wide reach and is a sustainable mode for delivery of interventions for multiple health behaviors.

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Physical and mental health risks often commence during young adulthood. Vocational education institutions are an ideal setting for understanding how health-risks cluster together in students to develop holistic multiple health-risk interventions. This is the first study to examine clustering of tobacco smoking, fruit intake, vegetable intake, alcohol consumption, physical inactivity, overweight/obesity, depression, and anxiety in vocational education students and the socio-demographic characteristics associated with cluster membership.

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