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1.
Conserv Biol ; 37(4): e14062, 2023 08.
Article in English | MEDLINE | ID: mdl-36704894

ABSTRACT

Fire has shaped ecological communities worldwide for millennia, but impacts of fire on individual species are often poorly understood. We performed a meta-analysis to predict which traits, habitat, or study variables and fire characteristics affect how mammal species respond to fire. We modeled effect sizes of measures of population abundance or occupancy as a function of various combinations of these traits and variables with phylogenetic least squares regression. Nine of 115 modeled species (7.83%) returned statistically significant effect sizes, suggesting most mammals are resilient to fire. The top-ranked model predicted a negative impact of fire on species with lower reproductive rates, regardless of fire type (estimate = -0.68), a positive impact of burrowing in prescribed fires (estimate = 1.46) but not wildfires, and a positive impact of average fire return interval for wildfires (estimate = 0.93) but not prescribed fires. If a species' International Union for Conservation of Nature Red List assessment includes fire as a known or possible threat, the species was predicted to respond negatively to wildfire relative to prescribed fire (estimate = -2.84). These findings provide evidence of experts' abilities to predict whether fire is a threat to a mammal species and the ability of managers to meet the needs of fire-threatened species through prescribed fire. Where empirical data are lacking, our methods provide a basis for predicting mammal responses to fire and thus can guide conservation actions or interventions in species or communities.


Modelos de las respuestas de los mamíferos a los incendios basados en las características de la especie Resumen Durante milenios, los incendios han moldeado a las comunidades ecológicas en todo el mundo y aun así conocemos muy poco sobre el impacto que tienen sobre cada especie. Realizamos un metaanálisis para predecir cuáles características, hábitat o variable de estudio en conjunto con las características del incendio afectan la respuesta de los mamíferos ante este fenómeno. Usamos para modelar los tamaños del efecto de las medidas de la abundancia poblacional o la ocupación como función de varias combinaciones de estas características y variables mediante una regresión filogenética por mínimos cuadrados. Nueve de las 115 especies modeladas (7.83%) devolvieron tamaños del efecto con importancia estadística, lo que sugiere que la mayoría de los mamíferos son resilientes a los incendios. El modelo mejor clasificado pronosticó un impacto negativo de los incendios sobre las especies con tasas reproductivas más bajas, sin importar el tipo de incendio (estimado = -0.68); un impacto positivo de las madrigueras durante las quemas prescritas (estimado = 1.46) pero no durante los incendios forestales; y un impacto positivo del intervalo promedio de rendimiento del incendio para los incendios forestales (estimado = 0.93) pero no para las quemas prescritas. Si la valoración de una especie en la Lista Roja de la Unión Internacional para la Conservación de la Naturaleza incluye a los incendios como una amenaza conocida o posible, pronosticamos que la especie respondería negativamente a los incendios forestales con relación a la quema prescrita (estimado = -2.84). Estos hallazgos proporcionan evidencia de la habilidad que tienen los expertos para predecir si los incendios son una amenaza para los mamíferos y la habilidad de los gestores para cumplir con las necesidades de las especies amenazadas por incendios por medio de las quemas prescritas. En caso de que falte información empírica, nuestros métodos proporcionan una base para predecir las respuestas de los mamíferos a los incendios y así orientar a las acciones o intervenciones de conservación para una especie o comunidad.


Subject(s)
Conservation of Natural Resources , Fires , Animals , Phylogeny , Conservation of Natural Resources/methods , Mammals/physiology , Ecosystem
2.
J Clin Nurs ; 32(13-14): 3205-3218, 2023 Jul.
Article in English | MEDLINE | ID: mdl-35765173

ABSTRACT

OBJECTIVES: To identify and explore the experiences of health professionals towards using mobile electrocardiogram (ECG) technology. INTRODUCTION: Mobile technology is increasingly being incorporated into healthcare systems, and when implemented well, has the potential to revolutionise the way in which care is delivered. The uptake of mobile ECG technology enables health professionals to record and transmit ECGs electronically, at the point of care. It is important to explore both the impact of this technology and staff experiences to help understand how readily it is accepted and how effectively it is used in practice. There is a paucity of knowledge and understanding from primary healthcare providers and a lack of qualitative evidence offering insight into the monitoring and use of mobile ECG technology. Therefore, this review adds to the available body of knowledge by giving insight from the perspectives of health professionals on its use. METHODS: TRIP, CINAHL, MEDLINE, Scopus and sources of grey literature were searched for eligible studies. Databases were searched from their inception dates, with a restriction on studies written in English. The results of the search are presented in a PRISMA flow diagram. Two reviewers independently screened studies and assessed methodological quality in accordance with JBI methodology for systematic reviews of qualitative evidence. Data were extracted from the included studies and meta-aggregation methodology adopted to identify categories and create synthesised findings related to the healthcare professionals' experiences. RESULTS: A total of six studies were included, which resulted in 18 findings and five categories. Three synthesised findings were generated: Quick, easy and feasible in both urban and remote settings; Increased accessibility of AF screening opportunities for all; Enhanced support in staff resources, time and technology are required. The level of confidence of synthesised findings varied from low to moderate according to ConQual. CONCLUSIONS: This systematic review synthesised the experiences of healthcare professionals using mobile ECG technology. The methodological quality of the included studies was high, and findings indicated healthcare professionals (HCPs) generally found mobile ECG technology simple, quick, easy to use and non-invasive. Enablers regarding mobile ECG technology were time, workload, and remuneration for improved interoperability with current systems and sustainability for screening long term. Data on the experiences of HCPs came from studies capturing mainly proactive, lower-risk patients; therefore, this review was unable to demonstrate if there are any differences between the experiences of HCPs working in primary care settings, such as GP practices/pharmacies, and those working remotely in the community. This highlights a gap in provision for those patients requiring HCPs to record an ECG in their own home. RELEVANCE TO CLINICAL PRACTICE: The experiences of HCPs towards using Mobile ECG technology in practice is quick, easy and feasible in both urban and remote settings. HCPs and organisations should consider identifying key staff as "change champions" and use change/leadership models to support the integration (with current workflows), transformation, and evaluation of mobile ECG technology in their practice setting. HCPs and providers using mobile ECG technology should ensure it prioritises at-risk individuals and includes the "housebound" population.


Subject(s)
Delivery of Health Care , Health Personnel , Humans , Qualitative Research , Delivery of Health Care/methods , Electrocardiography
3.
Can Commun Dis Rep ; 49(9): 368-374, 2023 Sep 01.
Article in English | MEDLINE | ID: mdl-38463901

ABSTRACT

Background: There has been dramatic reduction in Haemophilus influenzae serotype b (Hib) since introduction of Hib vaccines, but children still experience serious invasive Haemophilus influenzae (Hi) disease caused by various serotype and non-typeable bacteria. The object of this study was to describe the serotype distribution and clinical spectrum of Hi bacteremia in children admitted to Canadian hospitals. Methods: All children with Hi bacteremia admitted 2013 through 2017 to 10 centres across Canada were included. Demographic, clinical, treatment and outcome data were collected. Results: Haemophilus influenzae bacteremia occurred in 118 children of median age 12 months (inter-quartile range: 7-48 months). Forty-three (36%) isolates were non-typeable (NTHi) and 8 were not typed. Of the 67 typeable (THi), Hia (H. influenzae serotype a) (n=36, 54%), Hif (serotype f) (n=19, 26%) and Hib (serotype b) (n=9, 13%) dominated. The THi was more likely than NTHi bacteremia to present as meningitis (p<0.001), particularly serotype a (p=0.04) and less likely to present as pneumonia (p<0.001). Complicated disease (defined as intensive care unit admission, need for surgery, long-term sequelae or death) occurred in 31 (26%) cases and were more likely to have meningitis (p<0.001) than were those with uncomplicated disease. Conclusion: In the era of efficacious conjugate Hib vaccines, NTHi, Hia and Hif have emerged as the leading causes of invasive Hi in Canadian children, with Hia being most likely to result in meningitis and complicated disease. A vaccine for all NTHi and THi would be ideal, but knowledge of the current disease burden from circulating strains will inform prioritization of vaccine targets.

6.
Anaesth Intensive Care ; 49(6): 430-439, 2021 Nov.
Article in English | MEDLINE | ID: mdl-34686082

ABSTRACT

This survey was designed to investigate levels of stress, anxiety and depression, and to identify factors exacerbating or relieving stress in anaesthesia trainees within the Australian and New Zealand College of Anaesthetists training scheme. In addition, the survey investigated levels of personal healthcare, some working conditions, and reports of bullying and reported discrimination along with stigmatisation of mental health issues in this cohort. Psychological distress was assessed using the Kessler psychological distress scale (K10). An electronic survey was sent to 1310 randomly selected registrars, and 417 (32%) responses were received. The majority of respondents (67%) reported being satisfied or very satisfied with their job and training. However, 31% had K10 scores indicating high or very high levels of distress. Eleven percent reported being currently on treatment for anxiety and/or depression. Major stressors were examinations, job prospects, critical incidents and fear of making errors. Forty-five percent of respondents reported having experienced bullying during anaesthesia training, 25% discrimination and 7% sexual harassment. Twenty-six percent reported an excessive workload and 21% reported that they felt their workload compromised patient safety. Forty-two percent reported that they would avoid seeking help for anxiety or depression and 50% reported that they thought revealing mental health problems would jeopardise their careers. The results of this survey demonstrate a high incidence of psychological distress, and high levels of bullying and discrimination, as well as stigmatisation of mental ill health among respondents. Appropriate education, a review of assessment tools, effective management of bullying and discrimination, a review of working conditions, and destigmatisation of mental illness appear to be indicated.


Subject(s)
Anesthesia , Anesthesiology , Australia , Humans , Mental Health , Surveys and Questionnaires
7.
Paediatr Anaesth ; 31(1): 53-60, 2021 01.
Article in English | MEDLINE | ID: mdl-33176027

ABSTRACT

BACKGROUND: All anesthetists are at risk of mental ill health and pediatric anesthetists face additional stressors that may impact upon well-being, particularly after an adverse outcome. The SARS COV-2 pandemic has resulted in a plethora of resources to support the well-being of frontline workers. Developing a well-being system for an anesthesia department using these resources may be complex to implement. AIMS: In this article we outline how an anesthesia department can design and implement a framework for wellbeing, regardless of resources and financial constraints. We use the example of a free online toolkit developed in Australia for anesthetists. METHODS: The "Long lives, Healthy Workplaces toolkit" is a framework which has been specifically developed by mental health experts for anesthetists, and does not require departments to pay for external experts.1 Departments can design a long-term model of evidence-based mental health strategies to meet their unique needs using five steps outlined in the toolkit and detailed in this article. The framework uses cycles of assessment and review to create an adaptable approach to incorporate emerging evidence. We explain how culture can impact the implementation of a well-being framework and we outline how departments can set goals and priorities. CONCLUSION: Departments have different constraints which will alter how they approach supporting anaesthetists' wellbeing. Regardless of location or funding all departments should explicitly address anesthetists well-being. Long term sustainable well-being programs require a strategic and coordinated approach.


Subject(s)
Anesthesia Department, Hospital/organization & administration , Anesthetists/organization & administration , Anesthetists/psychology , COVID-19/psychology , Hospitals, Pediatric/organization & administration , Workplace/organization & administration , Workplace/psychology , Australia/epidemiology , COVID-19/epidemiology , Humans , Mental Health , Pandemics
8.
BMJ Sex Reprod Health ; 47(3): 211-220, 2021 07.
Article in English | MEDLINE | ID: mdl-33122258

ABSTRACT

INTRODUCTION: People who experience homelessness face disproportionately poor reproductive health and adverse pregnancy outcomes, including but not limited to unintended pregnancy, abortion, low birth weight and preterm birth, as well as a higher risk of sexually transmitted infections (STIs). Precarious living conditions are known to contribute to poor uptake and engagement with sexual and reproductive healthcare (SRH) for this population. AIM: To identify and understand the perceived barriers and facilitators for accessing and utilising SRH for people who experience homelessness from their perspective, and the perspective of support staff/volunteers and healthcare professionals. METHODS: Electronic databases and online sources were searched. Two reviewers independently carried out the screening, data extraction, critical appraisal, data synthesis and thematic analysis of findings. RESULTS: Following deduplication and screening, 23 papers/reports were considered eligible for the review. Barriers for people experiencing homelessness to accessing and utilising SRH were identified within the themes of complexity, feelings and knowledge (ie, individual-level factors), as well as patient/provider interaction and healthcare system (ie, organisational factors). Facilitators were identified within all of the above themes except for complexity. CONCLUSIONS: Both population characteristics and attributes of the healthcare system influence access and utilisation of SRH by people experiencing homelessness. Given the complexity of living conditions associated with homelessness, greater efforts to improve access should be placed on healthcare systems and aspects of care delivery. This systematic review highlights current gaps in the literature and provides recommendations for enhancing future research and practice to meet the needs of this vulnerable group more effectively.


Subject(s)
Ill-Housed Persons , Premature Birth , Female , Health Services Accessibility , Humans , Infant, Newborn , Pregnancy , Reproductive Health , Sexual Behavior
9.
Can Commun Dis Rep ; 46(10): 339-343, 2020 Oct 01.
Article in English | MEDLINE | ID: mdl-33315973

ABSTRACT

BACKGROUND: Immunizations have led to a decrease in the incidence of invasive meningococcal disease (IMD) in Canada, but this infection still leads to significant morbidity and mortality. OBJECTIVES: The purpose of this study was to determine the burden of illness and management of IMD in paediatric hospitals. METHODS: Data were collected on all cases of IMD in eight paediatric hospitals from 2013 to 2017. RESULTS: There were 17 cases of IMD. Three of eight hospitals had no cases. Just over half of the cases were serogroup B (n=9); a quarter (n=4) were serogroup W; less than a quarter (n=3) were serogroup Y; and one was unknown. Two infected children were not started on antibiotics until day one and day five after the initial blood culture was collected, but had uneventful recoveries. Six cases required admission to intensive care units; two died. Six cases had probable or proven meningitis. Thrombocytopenia was documented in seven cases. All cases had elevated C-reactive protein levels. Seven children received more than seven days of antibiotics; of these seven, only two had complications that justified prolonged therapy (subdural empyema and septic knee). Six cases had a central line placed. CONCLUSION: IMD is now rare in Canadian children, but about one-third of the cases in our study required treatment in the intensive care unit and two died. Clinicians appear to not always be aware that a five to seven-day course is adequate for uncomplicated cases of bacteremia or meningitis.

10.
Paediatr Child Health ; 25(6): 395-396, 2020 Oct.
Article in English, French | MEDLINE | ID: mdl-32968468

ABSTRACT

Cytomegalovirus (CMV) is the leading cause of congenital infection and the most common cause of non-genetic sensorineural hearing loss (SNHL) in childhood. Although most infected infants are asymptomatic at birth, the risk for SNHL and other neurodevelopmental morbidity makes congenital CMV (cCMV) a disease of significance. Adherence to hygienic measures in pregnancy can reduce risk for maternal CMV infection. The prompt identification of infected infants allows early initiation of surveillance and management. A multidisciplinary approach to management is critical to optimize outcomes in affected infants.

11.
PLoS One ; 15(8): e0238056, 2020.
Article in English | MEDLINE | ID: mdl-32857801

ABSTRACT

BACKGROUND: There are variations in recommendations from different guidelines regarding the indications for repeat lumbar puncture (LP) in young infants with the diagnosis of bacterial meningitis. OBJECTIVE: To evaluate the frequency of repeat LPs and the characteristics of cerebrospinal fluid (CSF) parameters in repeated sampling and their predictive values for adverse outcomes in a national cohort. METHODS: This cohort study included infants born January 1, 2013 through December 31, 2014, who had proven or suspected bacterial meningitis within the first 90 days of life at seven paediatric tertiary care hospitals across Canada, and who underwent a repeat LP at the discretion of the treating physicians. RESULTS: Forty-nine of 111 infants (44%) underwent repeat LP at a median of 5 (IQR: 3, 13) days after the LP that led to the diagnosis of bacterial meningitis. Those who had meningitis caused by gram negative bacilli were more likely to have repeat LP than those with gram positive bacteria (77% versus 57%; p = 0.012). White blood cell (WBC) count on the second spinal tap yielded an area under the curve of 0.88 for predicting sequelae of meningitis at discharge from the hospital, with a cut-off value of 366 × 106/L, providing a sensitivity of 91% and specificity of 88%. CONCLUSION: In this multi-centre retrospective cohort study, infants with gram negative meningitis were more likely to have repeated LP. A high WBC on the second CSF sample was predictive of adverse outcome at the time of discharge from the hospital.


Subject(s)
Cerebrospinal Fluid/cytology , Meningitis, Bacterial/diagnosis , Area Under Curve , Canada , Cohort Studies , Female , Gram-Negative Bacteria/isolation & purification , Gram-Positive Bacteria/isolation & purification , Humans , Infant , Infant, Newborn , Leukocyte Count , Male , Meningitis, Bacterial/microbiology , Predictive Value of Tests , ROC Curve , Retrospective Studies , Spinal Puncture , Tertiary Care Centers
12.
BMC Pediatr ; 20(1): 252, 2020 05 26.
Article in English | MEDLINE | ID: mdl-32456669

ABSTRACT

BACKGROUND: The relative contribution of viruses to central nervous system (CNS) infections in young infants is not clear. For viral CNS infections, there are limited data on features that suggest HSV etiology or on predictors of unfavorable outcome. METHODS: In this cross-sectional retrospective study, seven centers from the Pediatric Investigators Collaborative Network on Infections in Canada identified infants < 90 days of age with CNS infection proven to be due to enterovirus (EV) or herpes simplex virus (HSV) January 1, 2013 through December 31, 2014. RESULTS: Of 174 CNS infections with a proven etiology, EV accounted for 103 (59%) and HSV for 7 (4%). All HSV cases and 41 (40%) EV cases presented before 21 days of age. Four HSV cases (57%) and 5 EV cases (5%) had seizures. Three (43%) HSV and 23 (23%) EV cases lacked cerebrospinal fluid (CSF) pleocytosis. HSV cases were more likely to require ICU admission (p = 0.010), present with seizures (p = 0.031) and have extra-CNS disease (p < 0.001). Unfavorable outcome occurred in 12 cases (11% of all EV and HSV infections) but was more likely following HSV than EV infection (4 (57%) versus 8 (8%); p = 0.002). CONCLUSIONS: Viruses accounted for approximately two-thirds of proven CNS infections in the first 90 days of life. Empiric therapy for HSV should be considered in suspected CNS infections in the first 21 days even in the absence of CSF pleocytosis unless CSF parameters are suggestive of bacterial meningitis. Neurodevelopmental follow-up should be considered in infants whose course of illness is complicated by seizures.


Subject(s)
Central Nervous System Infections , Central Nervous System Viral Diseases , Herpes Simplex , Canada/epidemiology , Central Nervous System , Central Nervous System Infections/diagnosis , Central Nervous System Infections/epidemiology , Central Nervous System Viral Diseases/diagnosis , Central Nervous System Viral Diseases/epidemiology , Child , Cross-Sectional Studies , Herpes Simplex/diagnosis , Herpes Simplex/epidemiology , Humans , Infant , Retrospective Studies , Simplexvirus
13.
J Child Health Care ; 24(3): 338-350, 2020 09.
Article in English | MEDLINE | ID: mdl-30041539

ABSTRACT

Adopting a children's rights perspective, a critique and analysis underpinned by documentary research methodology was undertaken in order to assess the extent to which the government's Green Paper (Department of Health and Social Care and Department of Education, 2017. Transforming children and young people's mental health provision: a green paper. Available at: https://www.gov.uk/government/consultations/transforming-children-and-young-peoples-mental-health-provision-a-green-paper (accessed 7 December 2017)) addresses the mental health and well-being needs of refugee children and young people in England and Wales, identifying strengths, limitations and challenges for future policy and practice. Findings suggest that there is much of potential benefit to refugee children and young people's future mental health and well-being. However, a paradigm shift, explicit in implications, scale and time frame, will be required, if the Green Paper is to achieve those changes in attitudes, practice and service delivery which it anticipates. We argue that this Green Paper's overarching challenge is that it is premised on Western-centric models in its understanding of the experiences of refugee children and young people, and management of trauma and mental health. It fails to recognize the meanings and significance of culture, and of diversity and difference, and the need to invest in all communities in facilitating engagement and support for children and young people's mental health issues.


Subject(s)
Culturally Competent Care , Mental Health Services , Refugees/psychology , Social Stigma , Adolescent , Child , England , Humans , Wales , Wounds and Injuries
14.
Ecol Appl ; 28(3): 709-720, 2018 04.
Article in English | MEDLINE | ID: mdl-29490122

ABSTRACT

Developing a standardized approach to measuring the state of biodiversity in landscapes undergoing disturbance is crucial for evaluating and comparing change across different systems, assessing ecosystem vulnerability and the impacts of destructive activities, and helping direct species recovery actions. Existing ecosystem metrics of condition fail to acknowledge that a particular community could be in multiple states, and the distribution of states could worsen or improve when impacted by a disturbance process, depending on how far the current landscape distribution of states diverges from pre-anthropogenic impact baseline conditions. We propose a way of rapidly assessing regional-scale condition in ecosystems where the distribution of age classes representing increasing time since last disturbance is suspected to have diverged from an ideal benchmark reference distribution. We develop two metrics that (1) compare the observed mean time since last disturbance with an expected mean and (2) quantify the summed shortfall of vegetation age-class frequencies relative to a reference age-class distribution of time since last disturbance. We demonstrate the condition metrics using two case studies: (1) fire in threatened southwestern Australian proteaceaous mallee-heath and (2) impacts of disturbance (fire and logging) in the critically endangered southeastern Australian mountain ash Eucalyptus regnans forest on the yellow-bellied glider Petaurus australis. We explore the effects of uncertainty in benchmark time since last disturbance, and evaluate metric sensitivity using simulated age-class distributions representing alternative ecosystems. By accounting for and penalizing too-frequent and too-rare disturbances, the summed shortfall metric is more sensitive to change than mean time since last disturbance. We find that mountain ash forest is in much poorer condition (summed shortfall 38.5 out of 100 for a 120-yr benchmark disturbance interval) than indicated merely by loss of extent (84% of vegetation remaining). Proteaceaous mallee-heath is in worse condition than indicated by loss of extent for an upper benchmark interval of 80 yr, but condition almost doubles for the minimum tolerable time since last disturbance interval of 20 yr. To fully describe ecosystem degradation, we recommend that our summed shortfall metric, focused on habitat quality and informed by biologically meaningful baselines, be added to existing condition measures focused on vegetation extent. This will improve evaluation of change in ecosystem states and enhance management of ecosystems in poor condition.


Subject(s)
Ecology/methods , Ecosystem , Eucalyptus , Fires , Time Factors , Victoria
15.
Neurobiol Aging ; 64: 147-156, 2018 04.
Article in English | MEDLINE | ID: mdl-29458842

ABSTRACT

Given evidence that eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), and anthocyanin-rich blueberries provide neurocognitive benefit, we investigated long-term supplementation in older adults with cognitive complaints. In a 24-week randomized, double-blind, placebo-controlled trial, elderly men and women received daily fish oil (FO) or blueberry (BB) or both. Diet records confirmed that participants reduced background consumption of EPA, DHA, and anthocyanins as prescribed. Erythrocyte EPA + DHA composition increased in the FO groups (p = 0.0001). Total urinary anthocyanins did not differ between the groups after supplementation but glycoside and native (food) forms increased only in the BB-supplemented groups. The FO (p = 0.03) and BB (p = 0.05) groups reported fewer cognitive symptoms, and the BB group showed improved memory discrimination (p = 0.04), indicating that supplementation improved cognition. Cognitive benefit in the BB group was associated with the presence of urinary anthocyanins reflecting recent BB intake but not with anthocyanin metabolites. However, combined FO + BB treatment was not associated with cognitive enhancement as expected.


Subject(s)
Blueberry Plants , Cognition , Cognitive Dysfunction/diet therapy , Cognitive Dysfunction/psychology , Dietary Supplements , Fish Oils/administration & dosage , Aged , Anthocyanins/administration & dosage , Anthocyanins/urine , Docosahexaenoic Acids/administration & dosage , Docosahexaenoic Acids/blood , Double-Blind Method , Eicosapentaenoic Acid/administration & dosage , Eicosapentaenoic Acid/blood , Female , Glycosides/blood , Humans , Male , Memory , Middle Aged , Prospective Studies
16.
Food Funct ; 8(12): 4563-4569, 2017 Dec 13.
Article in English | MEDLINE | ID: mdl-29115354

ABSTRACT

While in vitro and animal evidence supports a role for anthocyanins in human health, future opportunities in berry health benefits will rest upon evidence from clinical intervention trials. Because little is known about the behaviour of anthocyanins during long term intake in humans, several clinical design factors were examined. Urine from volunteers (n = 17) who consumed blueberry juice daily was analysed using LC-MS/MS for predicted flavonoid-based products of anthocyanins in relation to a 5-day anthocyanin-free run-in, 28 days of blueberry juice intake, a 7-day washout and two dosing regimens. Total and parent anthocyanin content in urine varied 10-fold among the 17 participants. A high 24-0 h total anthocyanin excretion was associated with high anthocyanin retention (i.e. 0 h, before blueberry juice intake). Total anthocyanin excretion was not different before and after up to 7 days of washout indicative of a slow release of anthocyanins. Urinary excretion of anthocyanins declined during the 36-day study. The 24-0 h excretion was greater for total anthocyanins but not for parent anthocyanins when daily blueberry juice was taken all at once rather than as ⅓ doses taken thrice daily. However parent anthocyanins were retained better (higher 0 h) with 1× dosing. These findings could aid in the design of clinical research on anthocyanins and health.


Subject(s)
Anthocyanins/metabolism , Blueberry Plants/metabolism , Fruit and Vegetable Juices/analysis , Plant Preparations/metabolism , Adult , Anthocyanins/chemistry , Biological Availability , Blueberry Plants/chemistry , Chromatography, High Pressure Liquid , Female , Fruit/chemistry , Fruit/metabolism , Humans , Male , Middle Aged , Plant Preparations/chemistry , Tandem Mass Spectrometry , Urine/chemistry , Young Adult
17.
Confl Health ; 11: 15, 2017.
Article in English | MEDLINE | ID: mdl-28824708

ABSTRACT

BACKGROUND: It is assumed that knowing what puts young women at risk of poor sexual health outcomes and, in turn, what protects them against these outcomes, will enable greater targeted protection as well as help in designing more effective programmes. Accordingly, efforts have been directed towards mapping risk and protective factors onto general ecological frameworks, but these currently do not take into account the context of modern armed conflict. A literature overview approach was used to identify SRH related risk and protective factors specifically for young women affected by modern armed conflict. PROCESSES OF RISK AND PROTECTION: A range of keywords were used to identify academic articles which explored the sexual and reproductive health needs of young women affected by modern armed conflict. Selected articles were read to identify risk and protective factors in relation to sexual and reproductive health. While no articles explicitly identified 'risk' or 'protective' factors, we were able to extrapolate these through a thorough engagement with the text. However, we found that it was difficult to identify factors as either 'risky' or 'protective', with many having the capacity to be both risky and protective (i.e. refugee camps or family). Therefore, using an ecological model, six environments that impact upon young women's lives in contexts of modern armed conflict are used to illustrate the dynamic and complex operation of risk and protection - highlighting processes of protection and the 'trade-offs' between risks. CONCLUSION: We conclude that there are no simple formulaic risk/protection patterns to be applied in every conflict and post-conflict context. Instead, there needs to be greater recognition of the 'processes' of protection, including the role of 'trade-offs' (what we term as 'protection at a price'), in order to further effective policy and practical responses to improve sexual and reproductive health outcomes during or following armed conflict. Focus on specific 'factors' (such as 'female headed household') takes attention away from the processes through which factors manifest themselves and which often determine whether the factor will later be considered 'risk inducing' or protective.

18.
Pediatrics ; 140(1)2017 Jul.
Article in English | MEDLINE | ID: mdl-28600447

ABSTRACT

OBJECTIVES: The pathogens that cause bacterial meningitis in infants and their antimicrobial susceptibilities may have changed in this era of increasing antimicrobial resistance, use of conjugated vaccines, and maternal antibiotic prophylaxis for group B Streptococcus (GBS). The objective was to determine the optimal empirical antibiotics for bacterial meningitis in early infancy. METHODS: This was a cohort study of infants <90 days of age with bacterial meningitis at 7 pediatric tertiary care hospitals across Canada in 2013 and 2014. RESULTS: There were 113 patients diagnosed with proven meningitis (n = 63) or suspected meningitis (n = 50) presented at median 19 days of age, with 63 patients (56%) presenting a diagnosis from home. Predominant pathogens were Escherichia coli (n = 37; 33%) and GBS (n = 35; 31%). Two of 15 patients presenting meningitis on day 0 to 6 had isolates resistant to both ampicillin and gentamicin (E coli and Haemophilus influenzae type B). Six of 60 infants presenting a diagnosis of meningitis from home from day 7 to 90 had isolates, for which cefotaxime would be a poor choice (Listeria monocytogenes [n = 3], Enterobacter cloacae, Cronobacter sakazakii, and Pseudomonas stutzeri). Sequelae were documented in 84 infants (74%), including 8 deaths (7%). CONCLUSIONS: E coli and GBS remain the most common causes of bacterial meningitis in the first 90 days of life. For empirical therapy of suspected bacterial meningitis, one should consider a third-generation cephalosporin (plus ampicillin for at least the first month), potentially substituting a carbapenem for the cephalosporin if there is evidence for Gram-negative meningitis.


Subject(s)
Anti-Bacterial Agents/therapeutic use , Meningitis, Bacterial/drug therapy , Meningitis, Bacterial/epidemiology , Cohort Studies , Community-Acquired Infections/drug therapy , Female , Humans , Infant , Infant, Newborn , Male , Retrospective Studies , Treatment Outcome
19.
J Agric Food Chem ; 65(8): 1582-1591, 2017 Mar 01.
Article in English | MEDLINE | ID: mdl-28150498

ABSTRACT

The human health benefits of anthocyanins (Anc) and other flavonoids are widely recognized. However, the flavonoid-based urinary metabolites arising in vivo after Anc intake are not well described. Human (n = 17) urine was collected while blueberry juice (BJ) was consumed daily for 28 days and once after a 7 day washout. MS/MS scanning of 664 urine samples for 18 parent Anc (PAnc) and 42 predicted Anc metabolites (AncM) yielded 371 products (i.e., MS/MS × retention time (RT)). Flavonoid-based AncM, which were likely underestimated, were almost 20 times more abundant than PAnc. Together, PAnc and AncM accounted for about 1% of the daily Anc dose. Aglycone forms were >94% of the total. Cluster analysis of the 371 Anc identified about 55 major Anc that contributed about 80% to the total Anc. The abundance of flavonoid-based Anc-derived products in the gastrointestinal tract could contribute to the health benefits of Anc-rich berries.


Subject(s)
Anthocyanins/metabolism , Blueberry Plants/metabolism , Flavonoids/metabolism , Fruit/metabolism , Adult , Anthocyanins/urine , Chromatography, High Pressure Liquid , Female , Flavonoids/urine , Humans , Male , Middle Aged , Tandem Mass Spectrometry , Young Adult
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