Publications by authors named "Collier A"

Monitoring and evaluation (M&E) of gender-based violence (GBV) programs is challenging in humanitarian settings. To address these challenges, we used SenseMaker® as a mixed methods M&E tool for GBV services and programs in Lebanon. Over a three-month period in 2018, a total of 198 self-interpreted stories were collected from women and girls accessing GBV programs from six service providers across five locations.

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Background: Antiretroviral therapy (ART) non-adherence causes HIV treatment failure. Past behaviour might predict future behaviour; failing second-line ART could indicate ongoing risk for subsequent non-adherence. We aimed to find out whether a two-way mobile phone-based communication intervention would increase HIV treatment success by improving medication adherence.

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Introduction: Cytokines and vascular endothelial growth factors (VEGF) are involved in all aspects of pregnancy: from placentation, through fetal development, parturition and neonatal well-being. Umbilical cord inflammatory cytokines and/or VEGF have not been well studied with respect to dysregulation associated with disorders of pregnancy or maternal/neonatal outcomes.

Methods: Here we have used multiplex ELISA to screen umbilical cord lysates (comprising cord blood, endothelia and Wharton's jelly, n = 380), for levels of IFN-γ, IL1-β, IL-6, IL-8, IL-10, TNF-α and VEGFs A, C and D and associations with 46 ICD9/10 codes encompassing obstetric, maternal and neonatal variables.

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An understanding of the postnatal development of hepatic UDP-glucuronosyltransferase (UGT) enzymes is required for accurate prediction of the age-dependent changes in pharmacokinetics of many drugs used in children. However, the maturation rate of hepatic UGT isoforms remains a major knowledge gap. This study aimed to establish the age-associated changes in glucuronidation activity of 10 major hepatic UGT isoforms in humans, namely, UGT1A1, UGT1A3, UGT1A4, UGT1A6, UGT1A9, UGT2B4, UGT2B7, UGT2B10, UGT2B15, and UGT2B17.

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Aims And Objectives: To clarify how high-quality fundamentals of care for people with dementia and/or delirium were practised in a specialist geriatric evaluation and management unit.

Background: Older people with cognitive impairment represent a significant number of people who are admitted to hospital. They are at increased risk of dying, readmission and long hospital stays, relative to those without cognitive impairment.

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Background: The objective of this cross-sectional study was to explore the relationship of detectable C-peptide secretion in type 1 diabetes to clinical features and to the genetic architecture of diabetes.

Methods: C-peptide was measured in an untimed serum sample in the SDRNT1BIO cohort of 6076 Scottish people with clinically diagnosed type 1 diabetes or latent autoimmune diabetes of adulthood. Risk scores at loci previously associated with type 1 and type 2 diabetes were calculated from publicly available summary statistics.

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There are numerous clinical and pre-clinical studies showing that exposure of the embryo to ethanol markedly affects neuronal development and stimulates alcohol drinking and related behaviors. In rodents and zebrafish, our studies show that embryonic exposure to low-dose ethanol, in addition to increasing voluntary ethanol intake during adolescence, increases the density of hypothalamic hypocretin (hcrt) neurons, a neuropeptide known to regulate reward-related behaviors. The question addressed here in zebrafish is whether maternal ethanol intake before conception also affects neuronal and behavioral development, phenomena suggested by clinical reports but seldom investigated.

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Background: Antiretroviral therapy (ART) management is challenging for individuals in resource-limited settings presenting for third-line treatment because of complex resistance patterns, partly due to reduced access to viral load monitoring. We aimed to evaluate use of newer antiretroviral drugs and contemporary management approaches, including population-based sequencing, to select appropriate antiretrovirals, plasma viral load monitoring, and interventions to improve adherence in individuals presenting with second-line viral failure.

Methods: A5288 was a phase 4, third-line ART strategy study done at 19 urban sites in ten countries that enrolled adult participants with confirmed plasma HIV-1 RNA (viral load) of 1000 copies per mL or more after more than 24 weeks of protease inhibitor-based second-line ART.

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Article Synopsis
  • The study investigates whether statins, known for their anti-inflammatory properties, can reduce markers of HIV persistence and inflammation in individuals on long-term antiretroviral therapy (ART).
  • Researchers compared levels of specific HIV-related markers and immune activation between 303 statin users and non-users, finding no significant differences except for a slight variation in the IP-10 marker.
  • The conclusions suggest that statins do not significantly lower HIV persistence or immune activation in this cohort, indicating more research is necessary to determine their potential impact.
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BACKGROUNDPersistence of HIV in sanctuary sites despite antiretroviral therapy (ART) presents a barrier to HIV remission and may affect neurocognitive function. We assessed HIV persistence in cerebrospinal fluid (CSF) and associations with inflammation and neurocognitive performance during long-term ART.METHODSParticipants enrolled in the AIDS Clinical Trials Group (ACTG) HIV Reservoirs Cohort Study (A5321) underwent concurrent lumbar puncture, phlebotomy, and neurocognitive assessment.

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Background: Caregiver burden can be significant in chronic gastrointestinal diseases. No studies have been performed to evaluate caregiver burden in gastroparesis or gastroesophageal reflux disease (GERD).

Aims: (1) Assess the caregiver burden in gastroparesis and GERD patients and healthy volunteers (HVs); (2) correlate the caregiver burden of these patients to the severity of patients' symptoms, healthcare utilization, and work productivity of the patients and the caregivers.

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Aims/introduction: The increased mortality risk associated with diabetes is well established. The aim of the present study was to determine the causes of death of people with type 2 diabetes in Ayrshire and Arran, Scotland, between 2009 and 2014, and compare them with the national mortality rates.

Materials And Methods: The primary causes of death were collated.

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Introduction: Air pollution is a global health problem. It's responsible for over 4 million deaths each year and constitutes a risk factor for acute respiratory infections (ARI). The aims of this study was to assess knowledge about air pollution, and to determine environmental risk factors associated with ARIs occurence in the city of Bamenda, Cameroon.

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The impacts of continued degradation of watersheds on coastal coral reefs world-wide is alarming, and action addressing anthropogenic stressors and subsequent rehabilitation of watersheds and adjacent reefs is an urgent priority. The aim of this study is to develop and improve the use of antioxidant enzymes as bioindicators of stress in coral species. In order to fully develop such tools, it is necessary to first understand baseline cycling of these enzymes within coral tissues.

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Background: Few large projects have evaluated the factors that influence the HIV RNA concentrations (viral load) in cerebrospinal fluid (CSF) during antiretroviral therapy (ART) over time. We aimed to determine the correlates of HIV RNA in CSF in a large cohort.

Methods: We analysed longitudinal data from adults living with HIV in the US CHARTER cohort.

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Background: Embryonic ethanol (EtOH) exposure is known to increase alcohol drinking later in life and have long-term effects on neurochemical systems in the brain. With zebrafish having marked advantages for elucidating neural mechanisms underlying brain disorders, we recently tested and showed in these fish, similar to rodents, that low-dose embryonic EtOH stimulates voluntary consumption of EtOH while increasing expression of hypocretin/orexin (hcrt) neurons, a neuropeptide that promotes consummatory and reward-related behaviors. The goal of the present study was to characterize how embryonic EtOH affects early development of the hcrt system and produces persistent changes at older ages that may contribute to this increase in EtOH consumption.

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Background: Contemporary health policies call for consumers to be part of all aspects of service planning, implementation, delivery and evaluation. The extent to which consumers are part of the systemic decision-making levels of palliative care appears to vary between and within services and organisations.

Aim: The aim of this systematic review is to develop understandings about consumer and carer leadership in palliative care.

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Antimicrobial resistance is a global threat. To counter the growing menace of antibiotic resistance, several stewardship initiatives have been incorporated as part of the overarching strategy of healthcare delivery. In contrast, antifungal stewardship (AFS) has attracted less attention for several reasons, such as limited antifungal resistance and the lesser burden of fungal infections compared with bacterial infections.

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Candidaemia is associated with high mortality. The European Confederation of Medical Mycology (ECMM) has recently proposed the ECMM Quality of Clinical Candidemia Management (EQUAL) scoring criteria which provide an objective measure of adherence to various good practice recommendations. The maximum score is 22 in patients with a central venous catheter (CVC) and 19 in patients without a CVC.

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Primary hyperparathyroidism (PHPT) is functionally characterized by an inappropriately raised secretion of parathyroid hormone, leading to raised serum calcium levels. Some patients are referred for parathyroidectomy, and some are managed conservatively. The aim of the audit was to compare the mortality outcomes between the two groups.

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Multiple strategies to cure HIV infection are under investigation, including cell and gene therapy (C>) approaches. Research, and ultimately treatment, with these novel strategies will require patients' willingness to participate. To elicit the perspectives of people living with HIV specific to these novel approaches, we conducted 4 focus group discussions with a diverse group of 19 English-speaking men and women living with HIV in care at a large academic HIV clinic in the northwestern United States.

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Gastrointestinal (GI) mucosal dysfunction predicts and likely contributes to non-infectious comorbidities and mortality in HIV infection and persists despite antiretroviral therapy. However, the mechanisms underlying this dysfunction remain incompletely understood. Neutrophils are important for containment of pathogens but can also contribute to tissue damage due to their release of reactive oxygen species and other potentially harmful effector molecules.

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Objectives: Studies of neurocognitively elite older adults, termed SuperAgers, have identified clinical predictors and neurobiological indicators of resilience against age-related neurocognitive decline. Despite rising rates of older persons living with HIV (PLWH), SuperAging (SA) in PLWH remains undefined. We aimed to establish neuropsychological criteria for SA in PLWH and examined clinically relevant correlates of SA.

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Objective: The influence of confounding neurocognitive comorbidities in people living with HIV (PLWH) on neuroimaging has not been systematically evaluated. We determined associations between comorbidity burden and brain integrity and examined the moderating effect of age on these relationships.

Design: Observational, cross-sectional substudy of the CNS HIV Antiretroviral Therapy Effects Research cohort.

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