31 results on '"Magdalena Zasada"'
Search Results
2. Exploring the macro-level, meso-level and micro-level barriers and facilitators to the provision of good quality early inflammatory arthritis (EIA) care in England and Wales
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Sam Norton, Cath Taylor, Magdalena Zasada, Mark Yates, Nicola Ayers, and Zoë Ide
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Medicine - Abstract
Background Evidence from a national clinical audit of early inflammatory arthritis (EIA) shows considerable variability between hospitals in performance, unexplained by controlling for case-mix.Objective To explore the macro-level, meso-level and micro-level barriers and facilitators to the provision of good quality EIA care.Methods A qualitative study within 16 purposively sampled rheumatology units across England and Wales. Quality was assessed in relation to 11 quality indicators based on clinical opinion, evidence and variability observed in the data. Data from semi-structured interviews with staff (1–5 from each unit, 56 in total) and an online questionnaire (n=14/16 units) were integrated and analysed using the framework method for thematic analysis using a combined inductive and deductive approach (underpinned by an evidence-based framework of healthcare team effectiveness), and constant comparison of data within and between units and its relationship with the quality criteria.Findings Quality of care was influenced by an interplay between macro, meso and micro domains. The macro (eg, shared care arrangements and relationships with general practitioners) and meso (eg, managerial support and physical infrastructure) factors were found to act as crucial enablers of and barriers to higher quality service provision at the micro (team) level. These organisational factors directly influenced team structure and function, and thereby EIA care quality.Conclusions Variability in quality of EIA care is associated with an interplay between macro, meso and micro service features. Tackling macro and meso barriers is likely to have a significant impact on quality of EIA service, and ultimately patient experience and outcomes.
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- 2021
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3. Barriers and facilitators to uptake and retention of inner-city ethnically diverse women in a postnatal weight management intervention: a mixed-methods process evaluation within a feasibility trial in England
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Cath Taylor, Lucilla Poston, Debra Bick, Andy Healey, Michael Ussher, Eugene Oteng-Ntim, Vanita Bhavnani, Magdalena Zasada, Amanda Avery, Nina Khazaededah, Sara McMullen, Bimpe Oki, and Paul Seed
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Medicine - Abstract
Objectives To understand the barriers and facilitators to uptake and retention of postnatal women randomised to a commercial group weight management intervention using the COM-B (capability, opportunity, motivation and behaviour) behaviour change model.Design Concurrent mixed-methods (qualitative dominant) process evaluation nested within a feasibility randomised controlled trial, comprising questionnaires and interviews at 6 and 12 months postbirth.Setting One National Health Service maternity unit in an inner city area in the south of England.Participants 98 postnatal women with body mass indices>25 kg/m2 (overweight/obese) at pregnancy commencement.Intervention Twelve-week Slimming World (SW) commercial group weight management programme, commencing anytime from 8 to 16 weeks postnatally.Primary and secondary outcome measures Data regarding uptake and retention from questionnaires and interviews conducted 6 and 12 months postbirth analysed thematically and mapped to the COM-B model.Results Barriers to SW uptake mostly concerned opportunity issues (eg, lack of time or childcare support) though some women also lacked motivation, not feeling that weight reduction was a priority, and a few cited capability issues such as lacking confidence. Weight loss aspirations were also a key factor explaining retention, as were social opportunity issues, particularly in relation to factors such as the extent of group identity and relationship with the group consultant; and physical opportunity such as perceived support from and fit with family lifestyle. In addition, barriers relating to beliefs and expectations about the SW programme were identified, including concerns regarding compatibility with breastfeeding and importance of exercise. Women’s understanding of the SW approach, and capability to implement into their lifestyles, appeared related to level of attendance (dose–response effect).Conclusions Uptake and retention in commercial weight management programmes may be enhanced by applying behaviour change techniques to address the barriers impacting on women’s perceived capability, motivation and opportunity to participate.Trial registration number ISRCTN39186148.
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- 2020
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4. Evaluation of irisin and visfatin levels in very low birth weight preterm newborns compared to full term newborns-A prospective cohort study.
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Nina Mól, Magdalena Zasada, Przemysław Tomasik, Katarzyna Klimasz, and Przemko Kwinta
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Medicine ,Science - Abstract
Premature infants represent one of the groups with increased risk for metabolic syndrome. Our study is the first one to evaluate irisin and visfatin levels, associated with the metabolic syndrome, both in blood of preterm and full-term infants, as well as in the breastmilk of their mothers. A total of 72 newborns was enrolled in the study, including 53 very low birth weight preterm infants and a control group of 19 term infants. The levels of irisin and visfatin were determined by a commercial enzyme-linked immunoabsorbent assay both in the baby serum and maternal milk twice, first during the 1st week of life and then 4 weeks later. Preterm infants had significantly lower serum irisin levels compared to the term infants. Overall, serum irisin level during the 1st week of life was positively correlated with several anthropometric measurements at birth, as well as during 5th weeks of age. In contrast, serum visfatin levels during 5th week of life were negatively correlated with z-scores of birth weight, weight and head circumference during 5th week of age. We found a strong negative correlation between serum irisin and serum visfatin levels at both analyzed time points. The level of milk visfatin was significantly higher in the mothers of the preterm group during 5th week of life. In conclusion, our results provide further evidence that irisin and visfatin may play physiologic roles in development of both preterm and full-term newborns during their first month after birth. Observed differences in irisin and visfatin serum and breastmilk concentrations during the earliest stages of life may contribute to development of catch up growth, but also, they might eventually lead to a higher risk for metabolic syndrome in prematurely born children in later years.
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- 2018
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5. Analysis of PD-1 expression in the monocyte subsets from non-septic and septic preterm neonates.
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Magdalena Zasada, Marzena Lenart, Magdalena Rutkowska-Zapała, Małgorzata Stec, Wojciech Durlak, Andrzej Grudzień, Agnieszka Krzeczkowska, Nina Mól, Marta Pilch, Maciej Siedlar, and Przemko Kwinta
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Medicine ,Science - Abstract
Programmed death-1 (PD-1) receptor system represents a part of recently reported immunoregulatory pathway. PD-1 is an immune checkpoint molecule, which plays an important role in downregulating the immune system proinflammatory activity. Until recently, PD-1 expression was not established on immune cells of the preterm infants. The study objectives were to confirm expression of the PD-1 receptors on the monocytes isolated from very low birth weight newborns (VLBW), and to analyze their expression during the first week of life and late-onset sepsis. Peripheral blood mononuclear cells were isolated from 76 VLBW patients without early-onset sepsis on their 5th day of life (DOL). PD-1 expression was determined on the monocyte subsets (classical, intermediate, non-classical) by flow cytometry. In case of late-onset sepsis (LOS), the same analysis was performed. Our results demonstrated that on the 5th DOL, PD-1 receptors were present in all the monocyte subsets. Children, whose mothers had received antenatal steroids, presented higher absolute numbers of non-classical monocytes with PD-1 expression. Infants born extremely preterm who later developed LOS, initially showed a lower percentage of PD-1 receptor-positive intermediate monocytes in comparison to neonates born very preterm. During LOS, we observed a rise in the percentage of classical monocytes with PD-1 expression. In case of septic shock or fatal outcome, there was a higher percentage and absolute count of intermediate monocytes with PD-1 expression in comparison to children without these complications. In conclusion, monocytes from VLBW children express PD-1 receptors. Antenatal steroid administration seems to induce PD-1 receptor expression in the non-classical monocytes. PD-1 might play a role in immunosuppressive phase of sepsis in the prematurely born children with septic shock and fatal outcome.
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- 2017
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6. Lifestyle information and access to a commercial weight management group to promote maternal postnatal weight management and positive lifestyle behaviour: the SWAN feasibility RCT
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Bimpe Oki, Cath Taylor, Vanita Bhavnani, Andrew Healey, Amanda Avery, Lucilla Poston, Sheila O’Connor, Sarah McMullen, Eugene Oteng-Ntim, Magdalena Zasada, Michael Ussher, Victoria Craig, Nina Khazaezadah, Paul T. Seed, Sarah Roberts, and Debra Bick
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lifestyle ,medicine.medical_specialty ,body mass index ,030209 endocrinology & metabolism ,commercial weight management group ,Overweight ,health behaviours ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,law ,Weight loss ,Weight management ,medicine ,030212 general & internal medicine ,Pregnancy ,postnatal ,business.industry ,lcsh:Public aspects of medicine ,Weight change ,lcsh:RA1-1270 ,medicine.disease ,weight management ,Physical therapy ,medicine.symptom ,business ,Body mass index ,Weight gain - Abstract
BackgroundIncreasing numbers of UK women have overweight or obese body mass index scores when they become pregnant, or gain excessive weight in pregnancy, increasing their risk of adverse outcomes. Failure to manage postnatal weight is linked to smoking, non-healthy dietary choices, lack of regular exercise and poorer longer-term health. Women living in areas of higher social deprivation are more likely to experience weight management problems postnatally.ObjectivesThe objectives were to assess the feasibility of conducting a definitive randomised controlled trial to determine the clinical effectiveness and cost-effectiveness of lifestyle information and access to a commercial weight management group focusing on self-monitoring, goal-setting and motivation to achieve dietary change commencing 8–16 weeks postnatally to achieve and maintain weight management and positive lifestyle behaviour.DesignThe design was a randomised two-arm feasibility trial with a nested mixed-methods process evaluation.SettingThe setting was a single centre in an inner city setting in the south of England.ParticipantsParticipants were women with body mass index scores of > 25 kg/m2at antenatal ‘booking’ and women with normal body mass index scores (18.0–24.9 kg/m2) at antenatal booking who developed excessive gestational weight gain as assessed at 36 weeks’ gestation.Main outcome measuresRecruitment, retention, acceptability of trial processes and identification of relevant economic data were the feasibility objectives. The proposed primary outcome was difference between groups in weight at 12 months postnatally, expressed as percentage weight change and weight loss from antenatal booking. Other proposed outcomes included assessment of diet, physical activity, smoking, alcohol consumption, body image, maternal esteem, mental health, infant feeding and NHS costs.ResultsMost objectives were achieved. A total of 193 women were recruited, 98 allocated to the intervention arm and 95 to the control arm. High follow-up rates (> 80%) were achieved to 12 months. There was an 8.8% difference in weight loss at 12 months between women allocated to the intervention arm and women allocated to the control arm (13.0% vs. 4.2%, respectively;p = 0.062); 47% of women in the intervention arm attended at least one weight management session, with low risk of contamination between arms. The greatest benefit was among women who attended ≥ 10 sessions. Barriers to attending sessions included capability, opportunity and motivation issues. Data collection tools were appropriate to support economic evaluation in a definitive trial, and economic modelling is feasible to quantify resource impacts and outcomes not directly measurable within a trial.LimitationsThe trial recruited from only one site. It was not possible to recruit women with normal body mass index scores who developed excessive pregnancy weight gain.ConclusionsIt was feasible to recruit and retain women with overweight or obese body mass index scores at antenatal booking to a trial comparing postnatal weight management plus standard care with standard care only and collect relevant data to assess outcomes. Approaches to recruit women with normal body mass index scores who gain excessive gestational weight need to be considered. Commercial weight management groups could support women’s weight management as assessed at 12 months postnatally, with probable greater benefit from attending ≥ 10 sessions. Process evaluation findings highlighted the importance of providing more information about the intervention on trial allocation, extended duration of time to commence sessions following birth and extended number of sessions offered to enhance uptake and retention. Results support the conduct of a future randomised controlled trial.Trial registrationCurrent Controlled Trials ISRCTN39186148.FundingThis project was funded by the National Institute for Health Research (NIHR) Public Health Research programme and will be published in full inPublic Health Research; Vol. 8, No. 9. See the NIHR Journals Library website for further project information.
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- 2020
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7. Comparative two time-point proteome analysis of the plasma from preterm infants with and without bronchopulmonary dysplasia
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Monika Szwarc-Duma, Lars Oliver Baumbusch, Ola Didrik Saugstad, Józef Madej, Beata Bujak-Giżycka, Maciej Suski, Przemko Kwinta, Jacek J Pietrzyk, Renata Bokiniec, Cecilie Revhaug, Magdalena Zasada, Anna Madetko-Talowska, and Maria Katarzyna Borszewska-Kornacka
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Male ,medicine.medical_specialty ,Proteome ,Gestational Age ,Hematocrit ,Gastroenterology ,behavioral disciplines and activities ,Pathogenesis ,03 medical and health sciences ,Plasma ,0302 clinical medicine ,Carboxypeptidase N subunit 2 ,030225 pediatrics ,Internal medicine ,mental disorders ,Medicine ,Humans ,030212 general & internal medicine ,medicine.diagnostic_test ,business.industry ,Research ,Age Factors ,Infant, Newborn ,lcsh:RJ1-570 ,Gestational age ,Infant ,lcsh:Pediatrics ,General Medicine ,medicine.disease ,Blood proteins ,Bronchopulmonary dysplasia ,Cord blood ,Case-Control Studies ,Female ,Hemoglobin ,business ,Prematurity ,Biomarkers ,Infant, Premature - Abstract
Background In this study, we aimed to analyze differences in plasma protein abundances between infants with and without bronchopulmonary dysplasia (BPD), to add new insights into a better understanding of the pathogenesis of this disease. Methods Cord and peripheral blood of neonates (≤ 30 weeks gestational age) was drawn at birth and at the 36th postmenstrual week (36 PMA), respectively. Blood samples were retrospectively subdivided into BPD(+) and BPD(−) groups, according to the development of BPD. Results Children with BPD were characterized by decreased afamin, gelsolin and carboxypeptidase N subunit 2 levels in cord blood, and decreased galectin-3 binding protein and hemoglobin subunit gamma-1 levels, as well as an increased serotransferrin abundance in plasma at the 36 PMA. Conclusions BPD development is associated with the plasma proteome changes in preterm infants, adding further evidence for the possible involvement of disturbances in vitamin E availability and impaired immunological processes in the progression of prematurity pulmonary complications. Moreover, it also points to the differences in proteins related to infection resistance and maintaining an adequate level of hematocrit in infants diagnosed with BPD.
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- 2019
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8. Does type of feeding affect body composition in very low birth weight infants? – A prospective cohort study
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Przemko Kwinta, Nina Mól, and Magdalena Zasada
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Breastfeeding ,Adipose tissue ,Physiology ,Breast milk ,Group A ,Group B ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Electric Impedance ,Humans ,Infant, Very Low Birth Weight ,Medicine ,Prospective Studies ,030212 general & internal medicine ,Prospective cohort study ,business.industry ,Infant, Newborn ,lcsh:RJ1-570 ,lcsh:Pediatrics ,Infant Formula ,Low birth weight ,Breast Feeding ,Pediatrics, Perinatology and Child Health ,Body Composition ,medicine.symptom ,business ,Bioelectrical impedance analysis - Abstract
Background: The aim of the study was to analyse body composition of preterm infants fed with either breast milk or formula compared to a control group of full-term newborns. Methods: Fifty-three newborns were enrolled: a group of 34 very low birth weight (VLBW) preterm newborns subdivided into a formula-fed (n = 23; group A) and breast milk-fed (n = 11; group B) group, and a control group of 19 full-term infants (group C). Their body composition was assessed by a bioelectrical impedance analysis (BIA) either at the estimated time of birth in the VLBW group or during the 1st week of life in the full-term group. Results: There was no difference in body weight or length between any of the three studied groups. However, we discovered that fat free mass (% FFM) was lower (83.5% vs. 85.5%; p
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- 2019
9. Living life in limbo: experiences of healthcare professionals during the HCPC fitness to practice investigation process in the UK
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Magdalena Zasada, Cath Taylor, Ruth Abrams, Jill Maben, Linda Hoinville, and Dawn Querstret
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Health Personnel ,Vulnerability ,Context (language use) ,Fitness to practice ,Emotional impact ,Health administration ,Physicians ,Healthcare professionals ,Health care ,Humans ,Medicine ,Exercise ,Medical education ,Staff well-being ,Social work ,business.industry ,Health Policy ,Nursing research ,Flexibility (personality) ,United Kingdom ,Mediation ,Public aspects of medicine ,RA1-1270 ,business ,Delivery of Health Care ,Research Article - Abstract
Background It is the responsibility of healthcare regulators to ensure healthcare professionals remain fit for practice in healthcare settings. If there are concerns about an individual healthcare professional they may undergo a fitness to practice investigation. This process is known to be hugely stressful for doctors and social workers, but little is known about the impact of this experience on other professions. This study explores the experiences of registrants going through the process of being reported to the UK’s Health and Care Professions Council (HCPC) and attending fitness to practice (FTP) hearings. We discuss the implications of this process on registrants’ wellbeing and, from our findings, present recommendations based on registrants experiences. In doing so we articulate the structural processes of the HCPC FTP process and the impact this has on individuals. Methods This study uses semi-structured interviews and framework analysis to explore the experiences of 15 registrants who had completed the FTP process. Participants were sampled for maximum variation and were selected to reflect the range of possible processes and outcomes through the FTP process. Results The psychological impact of undergoing a FTP process was significant for the majority of participants. Their stories described influences on their wellbeing at both a macro (institutional/organisational) and micro (individual) level. A lack of information, long length of time for the process and poor support avenues were macro factors impacting on the ability of registrants to cope with their experiences (theme 1). These macro factors led to feelings of powerlessness, vulnerability and threat of ruin for many registrants (theme 2). Suggested improvements (theme 3) included better psychological support (e.g. signposting or provision); proportional processes to the incident (e.g. mediation instead of hearings); and taking context into account. Conclusions Findings suggest that improvements to both the structure and conduct of the FTP process are warranted. Implementation of better signposting for support both during and after a FTP process may improve psychological wellbeing. There may also be value in considering alternative ways of organising the FTP process to enable greater consideration of and flexibility for registrants’ context and how they are investigated.
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- 2021
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10. Why do paramedics have a high rate of self-referral?
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Grace Lucas, Robert Jago, Sarah Banks, Magdalena Zasada, Ann Gallagher, Zubin Austin, and Anna van der Gaag
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Self Referral ,medicine.medical_specialty ,Referral ,Social work ,business.industry ,Major trauma ,030208 emergency & critical care medicine ,medicine.disease ,Focus group ,Combat Medical Technician ,03 medical and health sciences ,0302 clinical medicine ,Family medicine ,Cohort ,medicine ,030212 general & internal medicine ,business ,Emergency Care Practitioner - Abstract
Paramedics have been regulated in the UK since 2003. Analysis shows that the profession has had consistently higher rates of self-referral to its regulator compared with other health and care professions. Between 2013 and 2016, the percentage of paramedics who self-referred averaged 50% of all cases, compared with 6% across all other health professions regulated by the Health and Care Professions Council (HCPC) and 10% across social workers in England. This article reports on possible reasons underlying this trend. Using a mixed-methods approach including a literature review, interviews, focus groups and case analysis, the study identified a number of possible contributory factors. These included pressurised work environments, variable guidance and support from employers, and work cultures of fear and conflict. The evolving nature of the profession was also cited. The research found that there was a cohort of cases that appeared inappropriate—where the referral was for a matter that did not require reporting. Actions are being taken to reduce such self-referrals to avoid the emotional distress and resource implications for those involved.
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- 2018
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11. Transcriptome analysis reveals dysregulation of genes involved in oxidative phosphorylation in a murine model of retinopathy of prematurity
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Agnieszka Grabowska, Anne Gro W. Rognlien, Magdalena Zasada, Przemko Kwinta, Jacek J Pietrzyk, Anna Madetko-Talowska, Miroslaw Bik-Multanowski, Teofila Książek, Cecilie Revhaug, Ola Didrik Saugstad, Katarzyna Szewczyk, and Lars Oliver Baumbusch
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Hyperoxia ,Cellular differentiation ,Biology ,medicine.disease ,eye diseases ,Cell biology ,Transcriptome ,Neovascularization ,Pediatrics, Perinatology and Child Health ,Gene expression ,medicine ,sense organs ,medicine.symptom ,Signal transduction ,Gene ,Retinopathy - Abstract
Background Retinal gene expression pattern is severely altered after exposition to hyperoxia in mice with oxygen-induced retinopathy (OIR), a common model of retinopathy of prematurity. Gene ontology and signaling pathway analyses may add new insights into a better understanding of the pathogenesis of this disease. Methods Seven-day-old C57BL/6J mice (n = 60) were exposed to 75% oxygen for 5 days and then recovered in room air. The controls (n = 60) were kept in the normoxic conditions. Retinas were harvested immediately following hyperoxia, during the phase of maximal neovascularization, and at the time of neovascularization regression. The retinal RNA samples were evaluated for gene expression using mouse gene expression microarrays. DAVID annotation tools were used for gene ontology and pathway analyses. Results The most significantly enriched signaling pathways during the neovascularization phase of OIR were: focal adhesion; ECM-receptor interaction; PI3K-Akt; oxidative phosphorylation; and Alzheimer's, Parkinson's and Huntington's disease signaling pathways. Genes involved in apoptosis, cell proliferation, cell differentiation, and immune responses were associated with neovascularization regression. Conclusions Performed analyses revealed the possible involvement of various signaling pathways in OIR pathomechanism, mostly specific to the OIR phase. Dysregulation of genes involved in oxidative phosphorylation may have an impact on neovascularization development.
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- 2020
12. Pulmonary vascular disease is evident in gene regulation of experimental bronchopulmonary dysplasia
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Jacek J Pietrzyk, Ola Didrik Saugstad, Przemko Kwinta, Miroslaw Bik-Multanowski, Clara-Cecilie Günther, Cecilie Revhaug, Agnieszka Grabowska, Magdalena Zasada, Lars Oliver Baumbusch, Katarzyna Szewczyk, Anna Madetko-Talowska, Anne Gro W. Rognlien, and Teofila Książek
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PTGS1 ,Hyperoxia ,Bioinformatics ,Pulmonary function testing ,Mice ,Random Allocation ,03 medical and health sciences ,0302 clinical medicine ,030225 pediatrics ,Gene expression ,medicine ,Animals ,Humans ,RNA, Messenger ,Vascular Diseases ,Lung ,Bronchopulmonary Dysplasia ,Regulation of gene expression ,Vascular disease ,business.industry ,Obstetrics and Gynecology ,medicine.disease ,Pulmonary hypertension ,Mice, Inbred C57BL ,Disease Models, Animal ,medicine.anatomical_structure ,Animals, Newborn ,Gene Expression Regulation ,030228 respiratory system ,Bronchopulmonary dysplasia ,Pediatrics, Perinatology and Child Health ,Female ,business - Abstract
Objective: To examine the gene expression regarding pulmonary vascular disease in experimental bronchopulmonary dysplasia in young mice. Premature delivery puts babies at risk of severe complications. Bronchopulmonary dysplasia (BPD) is a common complication of premature birth leading to lifelong affection of pulmonary function. BPD is recognized as a disease of arrested alveolar development. The disease process is not fully described and no complete cure or prevention is known. The focus of interest in the search for treatment and prevention of BPD has traditionally been at airspace level; however, the pulmonary vasculature is increasingly acknowledged in the pathology of BPD. The aim of the investigation was to study the gene expression in lungs with BPD with regards to pulmonary vascular disease (PVD). Methods: We employed a murine model of hyperoxia-induced BPD and gene expression microarray technique to determine the mRNA expression in lung tissue from young mice. We combined gene expression pathway analysis and analyzed the biological function of multiple single gene transcripts from lung homogenate to study the PVD relevant gene expression. Results: There were n = 117 significantly differentially regulated genes related to PVD through down-regulation of contractile elements, up- and down-regulation of factors involved in vascular tone and tissue-specific genes. Several genes also allowed for pinpointing gene expression differences to the pulmonary vasculature. The gene Nppa coding for a natriuretic peptide, a potent vasodilator, was significantly down-regulated and there was a significant up-regulation of Pde1a (phosphodiesterase 1A), Ptger3 (prostaglandin e receptor 3), and Ptgs1 (prostaglandin-endoperoxide synthase one). Conclusion: The pulmonary vasculature is affected by the arrest of secondary alveolarization as seen by differentially regulated genes involved in vascular tone and pulmonary vasculature suggesting BPD is not purely an airspace disease. Clues to prevention and treatment may lie in the pulmonary vascular system.
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- 2020
13. Short- and long-term impact of hyperoxia on the blood and retinal cells transcriptome in a mouse model of oxygen-induced retinopathy
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Cecilie Revhaug, Teofila Książek, Jacek J Pietrzyk, Lars Oliver Baumbusch, Miroslaw Bik-Multanowski, Anne Gro W. Rognlien, Magdalena Zasada, Przemko Kwinta, Ola Didrik Saugstad, Katarzyna Szewczyk, Anna Madetko-Talowska, and Agnieszka Grabowska
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0301 basic medicine ,Time Factors ,Hyperoxia ,Retinal Neovascularization ,Biology ,DEPTOR ,Peripheral blood mononuclear cell ,Retina ,Andrology ,Transcriptome ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Gene expression ,medicine ,Animals ,Retinopathy of Prematurity ,RNA, Messenger ,Gene Expression Profiling ,Intracellular Signaling Peptides and Proteins ,Nuclear Proteins ,Retinal ,Retinopathy of prematurity ,medicine.disease ,Basic Science Article ,eye diseases ,Mice, Inbred C57BL ,Gene expression profiling ,Disease Models, Animal ,030104 developmental biology ,Animals, Newborn ,chemistry ,Pediatrics, Perinatology and Child Health ,Leukocytes, Mononuclear ,sense organs ,medicine.symptom ,030217 neurology & neurosurgery - Abstract
Background We aimed to identify global blood and retinal gene expression patterns in murine oxygen-induced retinopathy (OIR), a common model of retinopathy of prematurity, which may allow better understanding of the pathogenesis of this severe ocular prematurity complication and identification of potential blood biomarkers. Methods A total of 120 C57BL/6J mice were randomly divided into an OIR group, in which 7-day-old pups were maintained in 75% oxygen for 5 days, or a control group. RNA was extracted from the whole-blood mononuclear cells and retinal cells on days 12, 17, and 28. Gene expression in the RNA samples was evaluated with mouse gene expression microarrays. Results There were 38, 1370 and 111 genes, the expression of which differed between the OIR and control retinas on days 12, 17, and 28, respectively. Gene expression in the blood mononuclear cells was significantly altered only on day 17. Deptor and Nol4 genes showed reduced expression both in the blood and retinal cells on day 17. Conclusion There are sustained marked changes in the global pattern of gene expression in the OIR mice retinas. An altered expression of Deptor and Nol4 genes in the blood mononuclear cells requires further investigation as they may indicate retinal neovascularization.
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- 2020
14. Lifestyle information and commercial weight management groups to support maternal postnatal weight management and positive lifestyle behaviour: the SWAN feasibility randomised controlled trial
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Michael Ussher, Amanda Avery, Sarah Roberts, Magdalena Zasada, Sheila O’Connor, Lucilla Poston, Eugene Oteng Ntim, Paul T. Seed, Andrew Healey, Vanita Bhavnani, Sarah McMullen, Nina Khazaezadah, Cath Taylor, Debra Bick, Victoria Craig, and Bimpi Oki
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Adult ,medicine.medical_specialty ,RJ ,Cost-Benefit Analysis ,Health Behavior ,Population ,Article ,Body Mass Index ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Randomized controlled trial ,Pregnancy ,law ,Weight management ,medicine ,Humans ,education ,Life Style ,education.field_of_study ,postnatal ,030219 obstetrics & reproductive medicine ,business.industry ,Postpartum Period ,Weight change ,Obstetrics and Gynecology ,Feasibility ,medicine.disease ,Mental health ,Gestational Weight Gain ,United Kingdom ,Postnatal ,Weight Reduction Programs ,weight management ,Physical therapy ,Feasibility Studies ,Gestation ,Female ,medicine.symptom ,business ,randomised controlled trial ,Weight gain ,feasibility - Abstract
Objectives To assess feasibility of a future randomised controlled trial (RCT) of clinical and cost‐effectiveness of lifestyle information and commercial weight management groups to support postnatal weight management to 12 months post‐birth. Design Two‐arm feasibility trial, with nested mixed‐methods process evaluation. Setting Inner‐city unit, south England. Population Women with body mass indices (BMIs) ≥25 kg/m2 at pregnancy booking or normal BMIs (18.5–24.9 kg/m2) identified with excessive gestational weight gain at 36 weeks of gestation. Methods Randomised to standard care plus commercial weight management sessions commencing 8–16 weeks postnatally or standard care only. Main outcomes Feasibility outcomes included assessment of recruitment, retention, acceptability and economic data collation. Primary and secondary end points included difference between groups in weight 12 months postnatally compared with booking (proposed primary outcome for a future trial), diet, physical activity, smoking, alcohol, mental health, infant feeding, NHS resource use. Results In all, 193 women were randomised: 98 intervention and 95 control; only four women had excessive gestational weight gain. A slightly greater weight change was found among intervention women at 12 months, with greatest benefit. Among women attending ten or more weight management sessions. There was >80% follow up to 12 months, low risk of contamination and no group differences in trial completion. Conclusion It was feasible to recruit and retain women with BMIs ≥25 kg/m2 to an intervention to support postnatal weight management; identification of excessive gestational weight gain requires consideration. Economic modelling could inform out‐of‐trial costs and benefits in a future trial. A definitive trial is an important next step. Tweetable abstract A feasibility RCT of postnatal weight support showed women with BMIs ≥25 kg/m2 can be recruited and followed to 12 months postnatally.
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- 2019
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15. The role of IRA B cells in selected inflammatory processes
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Magdalena Rutkowska-Zapała, Marzena Lenart, Przemko Kwinta, and Magdalena Zasada
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Microbiology (medical) ,IgM ,Phagocytosis ,lcsh:Medicine ,Spleen ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Sepsis ,medicine ,Secretion ,Autocrine signalling ,biology ,lcsh:R ,GM-CSF ,Pneumonia ,Colony-stimulating factor ,IRA B cells ,Infectious Diseases ,medicine.anatomical_structure ,Immunoglobulin M ,030220 oncology & carcinogenesis ,Immunology ,biology.protein ,Antibody ,030215 immunology ,B lymphocytes - Abstract
The first report about the discovery of new, previously unknown immune cells named IRA B cells (innate response activator B cells) appeared in 2012. So far, their presence has been verified in both mice and humans. However, IRA B cells belong to the family of B lymphocytes and have a number of characteristics unique to this group of cells. IRA B cells are formed from activated B1a lymphocytes after their contact with a pathogen. B1a lymphocytes mainly reside within body cavities. Activated by the pathogen, they move on into secondary lymphoid organs (spleen, lymph nodes) where they differentiate into IRA B cells. IRA B cells are a rich source of granulocyte-macrophage colony stimulating factor (GM-CSF). GM-CSF can stimulate IRA B cells in an autocrine manner for the secretion of intracellular stocks of immunoglobulin M (IgM), which can facilitate pathogens' phagocytosis by neutrophils. GM-CSF also stimulates neutrophils into active phagocytosis. Rapid eradication of the pathogen can prevent the development of an excessive inflammatory response, which can be dangerous for the organism. Until now the involvement of IRA B lymphocytes in the pathogenesis of sepsis and pneumonia has been proven, as well as their role in the progression of atherosclerotic lesions in mice. There is research in progress on the possibility of increasing the number of IRA B cells, for example by intravenous supply of modified immunoglobulins. It is necessary to characterize human IRA B cells and to determine their role in the functioning of the immune system.
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- 2016
16. Immune System Regulation Affected by a Murine Experimental Model of Bronchopulmonary Dysplasia : genomic and Epigenetic Findings
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Agnieszka Grabowska, Jacek J Pietrzyk, Przemko Kwinta, Miroslaw Bik-Multanowski, Teofila Książek, Lars Oliver Baumbusch, Anne Gro W. Rognlien, Magdalena Zasada, Katarzyna Szewczyk, Clara-Cecilie Günther, Cecilie Revhaug, Ola Didrik Saugstad, and Anna Madetko-Talowska
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T-Lymphocytes ,Adaptive Immunity ,Hyperoxia ,Epigenesis, Genetic ,Transcriptome ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,030225 pediatrics ,Medicine ,Animals ,030212 general & internal medicine ,Epigenetics ,Lung ,Bronchopulmonary Dysplasia ,Regulation of gene expression ,B-Lymphocytes ,business.industry ,Epigenome ,DNA Methylation ,medicine.disease ,Immunity, Innate ,Mice, Inbred C57BL ,Disease Models, Animal ,Bronchopulmonary dysplasia ,Animals, Newborn ,Pediatrics, Perinatology and Child Health ,Immunology ,DNA methylation ,medicine.symptom ,business ,Developmental Biology ,Signal Transduction - Abstract
Background: Bronchopulmonary dysplasia (BPD) is a common cause of abrupted lung development after preterm birth. BPD may lead to increased rehospitalization, more severe and frequent respiratory infections, and life-long reduced lung function. The gene regulation in lungs with BPD is complex, with various genetic and epigenetic factors involved. Objectives: The aim of this study was to examine the regulatory relation between gene expression and the epigenome (DNA methylation) relevant for the immune system after hyperoxia followed by a recovery period in air using a mouse model of BPD. Methods: Newborn mice pups were subjected to an immediate hyperoxic condition from birth and kept at 85% O2 levels for 14 days followed by a 14-day period in room air. Next, mice lung tissue was used for RNA and DNA extraction with subsequent microarray-based assessment of lung transcriptome and supplementary methylome analysis. Results:The immune system-related transcriptomeregulation was affected in mouse lungs after hyperoxia. A high proportion of genes relevant in the immune system exhibited significant expression alterations, e.g., B cell-specific genes central to the cytokine-cytokine receptor interaction, the PI3K-AKT, and the B cell receptor signaling pathways. The findings were accompanied by significant DNA hypermethylation observed in the PI3K-AKT pathway and immune system-relevant genes. Conclusions: Oxygen damage could be partly responsible for the increased susceptibility and abnormal response to respiratory viruses and infections seen in premature babies with BPD through dysregulated genes.
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- 2019
17. Irisin concentration in infant formulas and breast milk
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Magdalena Zasada, Przemysław Tomasik, Przemko Kwinta, Nina Mól, and Katarzyna Klimasz
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Milk, Human ,business.industry ,Infant, Newborn ,food and beverages ,Physiology ,Infant ,Breast milk ,Mean difference ,Infant Formula ,Fibronectins ,03 medical and health sciences ,Low birth weight ,fluids and secretions ,0302 clinical medicine ,030228 respiratory system ,030225 pediatrics ,Pediatrics, Perinatology and Child Health ,Myokine ,Medicine ,Humans ,Female ,medicine.symptom ,business ,Mature milk ,Infant, Premature - Abstract
BACKGROUND Irisin is a newly discovered myokine with anti-obesity properties. The delivery of irisin with the breast milk or formula is an emerging concept that myokine present at human milk influences postnatal energy balance and developmental parameters. The aim of the study was to evaluate irisin concentration in breast milk of mothers with term and preterm babies and in infant formulas. METHODS A total of 49 lactating mothers were enrolled in the study: 31 mothers of very low birth weight preterm infants and 18 mothers of term infants. Milk samples were collected twice: during the first week after delivery and after 4 weeks of delivery. Irisin concentration was determined using ELISA kits both in human milk and in samples of 14 different infant formulas. RESULTS There were no differences in milk irisin levels between preterm and full-term milk samples during both the 1st and the 4th week after delivery. There were also no differences in irisin concentration between transitional milk and mature milk in both tested groups. Irisin concentrations in preterm and full-term milk were significantly higher than in formulas during 30 days period after delivery. A significant increase of irisin concentration in natural milk 4 weeks post-delivery in comparison to 1st week after delivery was observed (mean difference 0.362 μg/ml; p=0.0063). CONCLUSIONS This study provides evidence that irisin is present in infant formulas, although in less amount than in human milk. Further research is needed to assess, if children fed with infant formulas may disadvantage from lower irisin supply.
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- 2018
18. Inflammasome function in monocyte subsets and a risk of late-onset sepsis in preterm very low birth weight neonates
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Magdalena Rutkowska-Zapała, Nina Mól, Ola Czyz, Magdalena Zasada, Przemko Kwinta, Małgorzata Stec, Marzena Lenart, and Maciej Siedlar
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Inflammasomes ,Stimulation ,Infant, Newborn, Diseases ,Monocytes ,Flow cytometry ,Andrology ,Sepsis ,Immune system ,medicine ,Humans ,Infant, Very Low Birth Weight ,medicine.diagnostic_test ,business.industry ,Monocyte ,Infant, Newborn ,Interleukin-18 ,Inflammasome ,medicine.disease ,Low birth weight ,medicine.anatomical_structure ,Pediatrics, Perinatology and Child Health ,medicine.symptom ,business ,Intracellular ,medicine.drug - Abstract
Background Immature immune systems predispose very low birth weight (VLBW) neonates to systemic infections in early life. Defective inflammasome function may increase a neonate's susceptibility to late-onset sepsis (LOS). Methods Blood samples were taken on the 5th day of life (DOL) for all VLBW neonates (non-LOS and before-LOS groups; n=76), and within 24 hours of sepsis onset (LOS group; n=39). Monocyte (MO) subsets and intracellular interleukin-1β (IL-1β) expression were analysed using flow cytometry. Inflammasome function, defined as level of IL-1β and interleukin-18 (IL-18) was measured with enzyme-linked immunosorbent assay. IRA B cells were reported as a fraction of all B cells. Results Stimulation of classical MO in non-LOS cells demonstrated a higher expression of intracellular IL-1β in comparison to MO from before-LOS group. Serum from the LOS group revealed a higher level of IL-18. Stimulation of mononuclear cultures from samples taken during LOS resulted in significantly increased supernatant level of IL-1β and IL-18 in comparison to samples taken on 5th DOL. No changes in the levels of IRA B cells were detected with the onset of sepsis. Conclusions We did not observe a difference in the functioning of the inflammasome within monocytes taken on 5th DOL from premature VLBW neonates. Furthermore, there was no observable change in the IRA B cells of the septic and non-septic groups. The decreased expression of intracellular IL-1β within classical MO of the before-LOS group may be an independent risk factor for LOS development.
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- 2018
19. Analysis of selected aspects of inflammasome function in the monocytes from neonates born extremely and very prematurely
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Ola Czyz, Magdalena Rutkowska-Zapała, Marzena Lenart, Małgorzata Stec, Maciej Siedlar, Przemko Kwinta, Nina Mól, and Magdalena Zasada
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Male ,0301 basic medicine ,Inflammasomes ,Interleukin-1beta ,Immunology ,Cell Count ,Gestational Age ,Biology ,Monocytes ,Sepsis ,03 medical and health sciences ,medicine ,Humans ,Immunology and Allergy ,Cells, Cultured ,Infant, Newborn ,Interleukin-18 ,Gestational age ,Interleukin ,Inflammasome ,Hematology ,Infant, Low Birth Weight ,medicine.disease ,Low birth weight ,030104 developmental biology ,Premature birth ,Premature Birth ,Female ,Interleukin 18 ,medicine.symptom ,Infant, Premature ,Function (biology) ,medicine.drug - Abstract
Inflammasomes regulate activation of caspase-1, which cleaves and activates interleukin (IL)-1β and IL-18, the cytokines that trigger pro-inflammatory and antimicrobial responses. There is very little known about inflammasome function in the subsets of monocytes (MO) isolated from preterm neonates born extremely and very prematurely.A group of 76 very low birth weight patients without early-onset sepsis was divided into extremely preterm (28 gestational week) or very preterm (28-32 gestational week) neonates. The first blood sample was collected on the 5th day of life (5th DOL) to analyse MO subsets as well as the intracellular IL-1β expression and supernatant concentration of IL-1β and IL-18. Secondary blood samples were collected within 24h of late-onset sepsis (LOS) development and analysed as above.On the 5th DOL, the extremely preterm neonates were characterized by a significantly higher absolute count of MO, in particular in the classical and intermediate subsets, as compared to the very preterm group. The counts of the intermediate and non-classical MO subsets increased during LOS in all neonates. We did not observe significant differences in the intracellular IL-1β expression between the analysed groups. Furthermore, the levels of the analysed cytokines in the MO supernatants were comparable between the extremely and very preterm neonates on the 5th DOL. Finally, a higher level of IL-18 was observed in the supernatant of the extremely preterm group during LOS.During LOS, extremely preterm neonates excrete a higher level of IL-18 cytokines compared to very preterm neonates. Further studies are required to determine whether this observation is a result of a higher count of the circulating MO or is a true reflection of increased inflammasome function in this particular group of newborns.
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- 2018
20. Evaluation of irisin and visfatin levels in very low birth weight preterm newborns compared to full term newborns : a prospective cohort study
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Magdalena Zasada, Nina Mól, Przemko Kwinta, Przemysław Tomasik, and Katarzyna Klimasz
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Male ,Time Factors ,Physiology ,lcsh:Medicine ,Biochemistry ,Fats ,Families ,0302 clinical medicine ,Medicine and Health Sciences ,Infant, Very Low Birth Weight ,Birth Weight ,Medicine ,Prospective Studies ,Nicotinamide Phosphoribosyltransferase ,lcsh:Science ,Prospective cohort study ,Children ,Breast Milk ,Multidisciplinary ,Anthropometry ,Lipids ,Body Fluids ,Breast Feeding ,Milk ,Physiological Parameters ,Cytokines ,Female ,Anatomy ,medicine.symptom ,Infants ,Research Article ,Adult ,Birth weight ,Enzyme-Linked Immunosorbent Assay ,030209 endocrinology & metabolism ,Breast milk ,Beverages ,03 medical and health sciences ,030225 pediatrics ,Humans ,Nutrition ,Full Term ,Milk, Human ,business.industry ,Body Weight ,lcsh:R ,Infant, Newborn ,Biology and Life Sciences ,Neonates ,medicine.disease ,Fibronectins ,Diet ,Low birth weight ,Age Groups ,Metabolic Disorders ,People and Places ,Population Groupings ,lcsh:Q ,Metabolic syndrome ,business ,Breast feeding ,Developmental Biology - Abstract
Premature infants represent one of the groups with increased risk for metabolic syndrome. Our study is the first one to evaluate irisin and visfatin levels, associated with the metabolic syndrome, both in blood of preterm and full-term infants, as well as in the breastmilk of their mothers. A total of 72 newborns was enrolled in the study, including 53 very low birth weight preterm infants and a control group of 19 term infants. The levels of irisin and visfatin were determined by a commercial enzyme-linked immunoabsorbent assay both in the baby serum and maternal milk twice, first during the 1st week of life and then 4 weeks later. Preterm infants had significantly lower serum irisin levels compared to the term infants. Overall, serum irisin level during the 1st week of life was positively correlated with several anthropometric measurements at birth, as well as during 5th weeks of age. In contrast, serum visfatin levels during 5th week of life were negatively correlated with z-scores of birth weight, weight and head circumference during 5th week of age. We found a strong negative correlation between serum irisin and serum visfatin levels at both analyzed time points. The level of milk visfatin was significantly higher in the mothers of the preterm group during 5th week of life. In conclusion, our results provide further evidence that irisin and visfatin may play physiologic roles in development of both preterm and full-term newborns during their first month after birth. Observed differences in irisin and visfatin serum and breastmilk concentrations during the earliest stages of life may contribute to development of catch up growth, but also, they might eventually lead to a higher risk for metabolic syndrome in prematurely born children in later years.
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- 2018
21. An iTRAQ-Based quantitative proteomic analysis of plasma proteins in preterm newborns with retinopathy of prematurity
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Ola Didrik Saugstad, Cecilie Revhaug, Monika Szwarc-Duma, Jacek J Pietrzyk, Magdalena Zasada, Renata Bokiniec, Przemko Kwinta, Maciej Suski, Lars Oliver Baumbusch, Anna Madetko-Talowska, Maria Katarzyna Borszewska-Kornacka, Józef Madej, and Beata Bujak-Giżycka
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Male ,Proteomics ,0301 basic medicine ,congenital, hereditary, and neonatal diseases and abnormalities ,genetic structures ,proteome ,Gestational Age ,Bioinformatics ,Fibrinogen ,Systemic inflammation ,Pathogenesis ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Birth Weight ,Humans ,Thrombophilia ,retinopathy of prematurity ,Retinopathy of Prematurity ,complement ,Retrospective Studies ,Inflammation ,business.industry ,Infant, Newborn ,Gestational age ,Retinopathy of prematurity ,Blood Proteins ,Complement C3 ,medicine.disease ,Blood proteins ,eye diseases ,030104 developmental biology ,Gene Expression Regulation ,Premature birth ,Cord blood ,030221 ophthalmology & optometry ,Female ,sense organs ,fibrinogen ,medicine.symptom ,business ,Infant, Premature ,medicine.drug - Abstract
Purpose Retinopathy of prematurity (ROP) is a vision-threatening complication of a premature birth, in which the etiology still remains unclear. Importantly, the molecular processes that govern these effects can be investigated in a perturbed plasma proteome composition. Thus, plasma proteomics may add new insights into a better understanding of the pathogenesis of this disease. Methods The cord and peripheral blood of neonates (≤30 weeks gestational age) was drawn at birth and at the 36th postmenstrual week (PMA), respectively. Blood samples were retrospectively subdivided into ROP(+) and ROP(-) groups, according to the development of ROP. Results The quantitative analysis of plasma proteome at both time points revealed 30 protein abundance changes between ROP(+) and ROP(-) groups. After standardization to gestational age, children who developed ROP were characterized by an increased C3 complement component and fibrinogen level at both analyzed time points. Conclusions Higher levels of the complement C3 component and fibrinogen, present in the cord blood and persistent to 36 PMA, may indicate a chronic low-grade systemic inflammation and hypercoagulable state that may play a role in the development of ROP.
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- 2018
22. Hyperoxia induces epigenetic changes in newborn mice lungs
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Ola Didrik Saugstad, Artur Dobosz, Miroslaw Bik-Multanowski, Anna Madetko-Talowska, Magdalena Zasada, Agnieszka Grabowska, and Cecilie Revhaug
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0301 basic medicine ,Biology ,Lung injury ,Hyperoxia ,Biochemistry ,Epigenesis, Genetic ,Andrology ,03 medical and health sciences ,Mice ,0302 clinical medicine ,Physiology (medical) ,medicine ,Animals ,Epigenetics ,Gene ,Methylation ,Lung Injury ,respiratory system ,Cell cycle ,DNA Methylation ,respiratory tract diseases ,Disease Models, Animal ,030104 developmental biology ,Animals, Newborn ,DNA methylation ,cardiovascular system ,biology.protein ,Female ,medicine.symptom ,CREB1 ,030217 neurology & neurosurgery ,Signal Transduction - Abstract
Supplemental oxygen exposure is a risk factor for the development of bronchopulmonary dysplasia (BPD). Reactive oxygen species may damage lung tissue, but hyperoxia also has the potential to alter genome activity via changes in DNA methylation. Understanding the epigenetic potential of hyperoxia would enable further improvement of the therapeutic strategies for BPD. Here we aimed to identify hyperoxia-related alterations in DNA methylation, which could affect the activity of crucial genetic pathways involved in the development of hyperoxic lung injury. Newborn mice (n = 24) were randomized to hyperoxia (85% O2) or normoxia groups for 14 days, followed by normoxia for the subsequent 14 days. The mice were sacrificed on day 28, and lung tissue was analyzed using microarrays developed for the assessment of genome methylation and expression profiles. The mean DNA methylation level was higher in the hyperoxia group than the normoxia group. The analysis of specific DNA fragments revealed hypermethylation of > 1000 gene promoters in the hyperoxia group, confirming the presence of the DNA-hypermethylation effect of hyperoxia. Further analysis showed significant enrichment of the TGF-β signaling pathway (p = 0.0013). The hypermethylated genes included Tgfbr1, Crebbp, and Creb1, which play central roles in the TGF-β signaling pathway and cell cycle regulation. Genome expression analysis revealed in the hyperoxia group complementary downregulation of genes that are crucial for cell cycle regulation (Crebbp, Smad2, and Smad3). These results suggest the involvement of the methylation of TGF-β pathway genes in lung tissue reaction to hyperoxia. The data also suggest that hyperoxia may be a programming factor in newborn mice.
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- 2018
23. Analysis of PD-1 expression in the monocyte subsets from non-septic and septic preterm neonates
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Marta Pilch, Magdalena Rutkowska-Zapała, Przemko Kwinta, Agnieszka Krzeczkowska, Małgorzata Stec, Magdalena Zasada, Andrzej Grudzień, Nina Mól, Marzena Lenart, Maciej Siedlar, and Wojciech Durlak
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Male ,0301 basic medicine ,Physiology ,Receptor expression ,Programmed Cell Death 1 Receptor ,lcsh:Medicine ,Apoptosis ,Pathology and Laboratory Medicine ,Infant, Newborn, Diseases ,Monocytes ,White Blood Cells ,Families ,0302 clinical medicine ,Animal Cells ,Medicine and Health Sciences ,Receptor ,lcsh:Science ,Children ,Multidisciplinary ,Cell Death ,Neonatal sepsis ,Organic Compounds ,Flow Cytometry ,Body Fluids ,Chemistry ,Blood ,Cell Processes ,030220 oncology & carcinogenesis ,Physical Sciences ,Female ,Steroids ,Cellular Types ,Neonatal Sepsis ,Anatomy ,Infants ,Infant, Premature ,Research Article ,Immune Cells ,Immunology ,Peripheral blood mononuclear cell ,Antenatal steroid ,Sepsis ,03 medical and health sciences ,Signs and Symptoms ,Immune system ,Diagnostic Medicine ,medicine ,Humans ,Blood Cells ,Septic shock ,business.industry ,Organic Chemistry ,lcsh:R ,Infant, Newborn ,Chemical Compounds ,Biology and Life Sciences ,Neonates ,Cell Biology ,Length of Stay ,medicine.disease ,030104 developmental biology ,Age Groups ,Case-Control Studies ,People and Places ,Population Groupings ,lcsh:Q ,business ,Developmental Biology - Abstract
Programmed death-1 (PD-1) receptor system represents a part of recently reported immunoregulatory pathway. PD-1 is an immune checkpoint molecule, which plays an important role in downregulating the immune system proinflammatory activity. Until recently, PD-1 expression was not established on immune cells of the preterm infants. The study objectives were to confirm expression of the PD-1 receptors on the monocytes isolated from very low birth weight newborns (VLBW), and to analyze their expression during the first week of life and late-onset sepsis. Peripheral blood mononuclear cells were isolated from 76 VLBW patients without early-onset sepsis on their 5th day of life (DOL). PD-1 expression was determined on the monocyte subsets (classical, intermediate, non-classical) by flow cytometry. In case of late-onset sepsis (LOS), the same analysis was performed. Our results demonstrated that on the 5th DOL, PD-1 receptors were present in all the monocyte subsets. Children, whose mothers had received antenatal steroids, presented higher absolute numbers of non-classical monocytes with PD-1 expression. Infants born extremely preterm who later developed LOS, initially showed a lower percentage of PD-1 receptor-positive intermediate monocytes in comparison to neonates born very preterm. During LOS, we observed a rise in the percentage of classical monocytes with PD-1 expression. In case of septic shock or fatal outcome, there was a higher percentage and absolute count of intermediate monocytes with PD-1 expression in comparison to children without these complications. In conclusion, monocytes from VLBW children express PD-1 receptors. Antenatal steroid administration seems to induce PD-1 receptor expression in the non-classical monocytes. PD-1 might play a role in immunosuppressive phase of sepsis in the prematurely born children with septic shock and fatal outcome.
- Published
- 2017
24. Abstracts. 28th International Workshop on Surfactant Replacement, Helsinki, May 31-June 1, 2013
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Alexander Avian, Christian P. Speer, Benjamin Mayer, Angelika Berger, Jens Schwindt, Ellen L. Stock, Julia Straub, Andrea Calkovska, Andrea F. de Winter, Jorien M. Kerstjens, Sijmen A. Reijneveld, Anna Brandner, Inês Azevedo, Hans Fuchs, Nadja Haiden, Kai König, Renate Fuiko, Paulo Soares, Keith J. Barrington, Henry L. Halliday, Helmut D. Hummler, Ipek Altiok, Andrzej Grudzień, Druck Reinhardt Druck Basel, Otília Brandão, Nicholas Morris, Magdalena Zasada, Wolfgang Lindner, Jacek J Pietrzyk, Andrea-Romana Prusa, Shu-Chen Wei, Eric S. Shinwell, Richard Plavka, Munira Almaazmi, William Ravekes, Mikko Hallman, Hélder Morgado, Eren Özek, Bert Nagel, Umberto Simeoni, David C. Kasper, Satz Mengensatzproduktion, Frank Reister, Berndt Urlesberger, Koenraad N.J.A. Van Braeckel, Ola Didrik Saugstad, Arend F. Bos, Gorm Greisen, Mirjam Pocivalnik, Małgorzata Klimek, Elise A. Verhagen, Partha Sen, Gerhard Cvirn, Melanie Jarvis, Maria João Baptista, Tore Curstedt, Joana O. Miranda, Michael Obladen, Przemko Kwinta, Gustavo Rocha, Po-Nien Tsao, Inger F.A. Bocca-Tjeertes, Stefanie Havers, Kurt R. Herkner, Virgilio P. Carnielli, Gerhard Pichler, Jan Johansson, Susana Fernandes, Judith Böhm, Arnold Pollak, Mateusz Jagła, Martin Wald, Máximo Vento, Michaela Langgartner, Ben Stenson, Agnes Grill, Hercília Guimarães, Thomas Waldhoer, Andreas Gamillscheg, Katrin Klebermass-Schrehof, Elisabeth M. W. Kooi, David G. Sweet, Michelle E. van der Laan, Thomas P. Mechtler, Michael Hayde, Corinna Binder, Martin Koestenberger, Bernd Heinzl, and Manuel Schmid
- Subjects
medicine.medical_specialty ,Pediatrics ,business.industry ,Pediatrics, Perinatology and Child Health ,Emergency medicine ,medicine ,Surfactant replacement ,business ,Developmental Biology - Published
- 2013
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25. From a Regional Cohort of Extremely Low Birth Weight Infants: Cardiac Function at the Age of 7 Years
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Jacek J Pietrzyk, Magdalena Zasada, Przemko Kwinta, Mateusz Jagła, Andrzej Grudzień, and Małgorzata Klimek
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Cardiac function curve ,Pediatrics ,medicine.medical_specialty ,Heart Diseases ,Blood Pressure ,Left ventricular hypertrophy ,Ventricular Function, Left ,Cohort Studies ,Heart Rate ,Predictive Value of Tests ,Internal medicine ,Birth Weight ,Humans ,Medicine ,Cardiac structure ,Child ,Echocardiography, Doppler, Pulsed ,Chi-Square Distribution ,Ventricular Remodeling ,business.industry ,Age Factors ,Infant, Newborn ,Heart ,Blood Pressure Monitoring, Ambulatory ,Infant, Low Birth Weight ,medicine.disease ,Low birth weight ,Cross-Sectional Studies ,Logistic Models ,Case-Control Studies ,Multivariate Analysis ,Pediatrics, Perinatology and Child Health ,Cohort ,Ventricular Function, Right ,Cardiology ,Poland ,medicine.symptom ,business ,Developmental Biology - Abstract
Background: The long-term impact of prematurity on cardiac structure and function has not yet been fully discovered. Objectives: To assess long-term cardiac complications in the regional cohort of extremely low birth weight (ELBW) children born in 2002-2004. Material and Methods: Eighty-one children born as ELBW infants (91% of the available cohort) with a median birth weight of 890 g (25-75th percentile: 760-950) were evaluated at the mean age of 6.7 years. The control group included 40 children born full-term, selected from one general practice in the district. Echocardiography and 24-hour ambulatory blood pressure measurements (ABPM) were performed. The primary outcome variable was the presence of cardiac complications such as left ventricular hypertrophy (LVH), diastolic dysfunction or systolic dysfunction. Results: LVH was diagnosed in 4/81 ELBW children and 2/40 control children (p = 1.0). Concentric remodeling was detected in 8 (10%) subjects from the ELBW group and in 2 (5%) from the control group (p = 0.49). There were no patients with diastolic or systolic dysfunction in either group. After having expressed the results of M-mode echocardiography as z-scores for body surface area (BSA), statistically significant differences were observed for right-ventricle dimension in diastole (-1.49 ± 1.25 vs. -0.31 ± 0.91; p < 0.001), LV inner dimension in diastole (-0.53 ± 1.26 vs. 0.13 ± 0.94; p = 0.01) and left atrium (-0.93 ± 1.07 vs. -0.15 ± 1.02; p < 0.01). Heart rate (HR) was significantly faster in ELBW children (92.9 ± 8.4 vs. 86.7 ± 7.4 bpm; p = 0.01 adjusted for BSA) and they also had significantly higher night-time blood pressure [mean (z-score): 1.15 vs. 0.2; p = 0.02] without nocturnal dipping (night-time dipping Conclusions: No differences were found between the groups in the occurrence of cardiac complications. Ex-preterm ELBW children at age 6 may have a faster HR, smaller cardiac dimensions on echocardiography and higher nocturnal blood pressure. The clinical relevance of these findings is unknown.
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- 2013
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26. Contents Vol. 103, 2013
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Martin Wald, Andreas Gamillscheg, Druck Reinhardt Druck Basel, Andrea F. de Winter, Partha Sen, Helmut D. Hummler, Jens Schwindt, Richard Plavka, Máximo Vento, Jacek J Pietrzyk, Renate Fuiko, Michaela Langgartner, Sijmen A. Reijneveld, Nadja Haiden, Kai König, Gustavo Rocha, Joana O. Miranda, Paulo Soares, Keith J. Barrington, Otília Brandão, Michelle E. van der Laan, Christian P. Speer, Kurt R. Herkner, Thomas P. Mechtler, Ellen L. Stock, Ben Stenson, Frank Reister, Eren Özek, Shu-Chen Wei, Michael Obladen, Virgilio P. Carnielli, Thomas Waldhoer, Andrea Calkovska, Wolfgang Lindner, Manuel Schmid, Melanie Jarvis, Stefanie Havers, Hans Fuchs, Henry L. Halliday, Andrea-Romana Prusa, David C. Kasper, Satz Mengensatzproduktion, Ipek Altiok, William Ravekes, Eric S. Shinwell, Alexander Avian, Hélder Morgado, Susana Fernandes, Judith Böhm, Berndt Urlesberger, Corinna Binder, Koenraad N.J.A. Van Braeckel, Gerhard Cvirn, Ola Didrik Saugstad, Magdalena Zasada, Maria João Baptista, Tore Curstedt, Martin Koestenberger, Elise A. Verhagen, Agnes Grill, Mirjam Pocivalnik, Hercília Guimarães, Inger F.A. Bocca-Tjeertes, Bert Nagel, Arend F. Bos, Benjamin Mayer, Bernd Heinzl, Gerhard Pichler, Julia Straub, Gorm Greisen, Elisabeth M. W. Kooi, David G. Sweet, Katrin Klebermass-Schrehof, Jan Johansson, Michael Hayde, Przemko Kwinta, Andrzej Grudzień, Munira Almaazmi, Umberto Simeoni, Arnold Pollak, Mateusz Jagła, Jorien M. Kerstjens, Anna Brandner, Inês Azevedo, Małgorzata Klimek, Mikko Hallman, Nicholas Morris, Angelika Berger, and Po-Nien Tsao
- Subjects
Pediatrics ,medicine.medical_specialty ,Traditional medicine ,business.industry ,Pediatrics, Perinatology and Child Health ,Medicine ,business ,Developmental Biology - Published
- 2013
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27. Care-givers' reflections on an ethics education immersive simulation care experience: A series of epiphanous events
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Magdalena Zasada, Matthew Peacock, Trees Coucke, Ann Gallagher, Anna Cox, and Nele Janssens
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medicine.medical_specialty ,media_common.quotation_subject ,education ,Vulnerability ,Psychological intervention ,0603 philosophy, ethics and religion ,Vulnerable Populations ,Personhood ,03 medical and health sciences ,Dignity ,Nursing ,Informed consent ,medicine ,Humans ,General Nursing ,media_common ,030504 nursing ,Nursing ethics ,06 humanities and the arts ,Focus Groups ,Focus group ,Patient Simulation ,Scholarship ,Caregivers ,Students, Nursing ,060301 applied ethics ,Empathy ,0305 other medical science ,Psychology ,Meaning (linguistics) - Abstract
There has been little previous scholarship regarding the aims, options and impact of ethics education on residential care-givers. This manuscript details findings from a pragmatic cluster trial evaluating the impact of three different approaches to ethics education. The focus of the article is on one of the interventions, an immersive simulation experience. The simulation experience required residential care-givers to assume the profile of elderly care-recipients for a 24-hr period. The care-givers were student nurses. The project was reviewed favourably by a university ethics committee, and participants provided informed consent. Data from six postsimulation experience focus groups were analysed thematically and three themes were identified: the experience of vulnerability, dignity in care and the organisation of care. Findings suggest that the immersive simulation experience had a powerful immediate impact as participants described epiphanous insights relating to their care experiences. It is suggested that reflecting on and recording epiphanous events has the potential to sustain ethical care practices. Further research is required to evaluate the impact of different ethics education interventions in different cultural contexts. Exploration is also required regarding the meaning and significance of care epiphanies, those “most delicate and evanescent of moments,” for the sustainability of ethical care.
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- 2016
28. Assessment of long-term renal complications in extremely low birth weight children
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Przemko Kwinta, Andrzej Grudzień, Jacek J Pietrzyk, Magdalena Zasada, Dorota Drozdz, Małgorzata Klimek, and Mateusz Jagła
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Male ,Nephrology ,Aging ,Blood Pressure ,Kidney ,Gastroenterology ,chemistry.chemical_compound ,Risk Factors ,cystatin C ,kidney volume ,Odds Ratio ,Ultrasonography, Doppler, Color ,Child ,biology ,Age Factors ,blood pressure ,Gestational age ,Organ Size ,Blood Pressure Monitoring, Ambulatory ,Infant, Extremely Low Birth Weight ,Hypertension ,ELBW ,Female ,Kidney Diseases ,Original Article ,medicine.symptom ,Renal ultrasound ,medicine.medical_specialty ,Ambulatory blood pressure ,microalbuminuria ,Gestational Age ,Risk Assessment ,Preterm ,Internal medicine ,ABPM ,Kidney volume ,medicine ,Albuminuria ,Humans ,Pediatrics, Perinatology, and Child Health ,Cystatin C ,Creatinine ,Chi-Square Distribution ,business.industry ,renal ultrasound ,Infant, Newborn ,Odds ratio ,medicine.disease ,Surgery ,Low birth weight ,Cross-Sectional Studies ,Logistic Models ,chemistry ,Case-Control Studies ,Pediatrics, Perinatology and Child Health ,biology.protein ,Microalbuminuria ,Poland ,preterm ,business ,Biomarkers - Abstract
We assessed the long-term renal complications in a regional cohort of extremely low birth weight (ELBW) children born in 2002–2004. The study group, comprising 78 children born as ELBW infants (88% of the available cohort), was evaluated with measurement of serum cystatin C, urinary albumin excretion, renal ultrasound, and 24-h ambulatory blood pressure measurements. The control group included 38 children born full-term selected from one general practice in the district. Study patients were evaluated at a mean age of 6.7 years, and had a median birthweight of 890 g (25th–75th percentile: 760–950 g) and a median gestational age of 27 weeks (25th–75th percentile: 26–29 weeks). Mean serum cystatin C levels were significantly higher (0.64 vs. 0.59 mg/l; p = 0.01) in the ELBW group. Hypertension was diagnosed in 8/78 ELBW and 2/38 of the control children (p = 0.5). Microalbuminuria (>20 mg/g of creatinine) was detected only in five ELBW children (p = 0.17). The mean renal volume was significantly lower in the ELBW group (absolute kidney volume 81 ml vs. 113 ml; p
- Published
- 2011
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29. Novel Mutation-Deletion in the PHOX2B Gene of the Patient Diagnosed with Neuroblastoma, Hirschsprung's Disease, and Congenital Central Hypoventilation Syndrome (NB-HSCR- CCHS) Cluster
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Tina Margrethe Karlsvik, Grazyna Drabik, Mateusz Jagła, Bianka Kathryn Malecki, Magdalena Zasada, Anders Halsen, Piotr Kruczek, Marek Malecki, Anna Madetko Talowska, Thore Langfeldt Borgenvik, Izabela Szymońska, and Sindre Ervik Saetre
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Neurocristopathy ,Sanger sequencing ,Mutation ,business.industry ,Genetic counseling ,Congenital central hypoventilation syndrome ,medicine.disease ,medicine.disease_cause ,Bioinformatics ,Article ,genomic DNA ,symbols.namesake ,Haddad syndrome ,medicine ,symbols ,business ,Hirschsprung's disease - Abstract
Introduction: Neuroblastoma (NB), Hirschsprung disease (HSCR), Congenital Central Hypoventilation Syndrome (CCHS), clinically referred as the NB-HSCR-CCHS cluster, is genetic disorders linked to mutations in the PHOX2B gene on chromosome 4p12. Specific aim: The specific aim of this project is to define the PHOX2B gene mutations as the genomic basis for the clinical manifestations of the NB-HSCR-CCHS cluster. Patient: A one day old male patient presented to the JUMC neonatal ICU due to abdominal distention, vomiting, and severe apneic episodes. With the preliminary diagnosis of the NB-HSCR-CCHS, the blood and tissue samples were acquired from the child, as well as from the child’s parents. All procedures were pursued in accordance with the Declaration of Helsinki, with the patient’s Guardian Informed Consent and the approval from the Institutional Review Board. Genetic/genomic methods: Karyotyping was analyzed based upon Giemsa banding. The patient’s genomic DNA was extracted from peripheral blood and amplified by polymerase chain reaction. Direct microfluidic Sanger sequencing was performed on the genomic DNA amplicons. These procedures were pursued in addition to the routine clinical examinations and tests. Results: G-banding showed the normal 46 XY karyotype. However, genomic sequencing revealed a novel, heterozygous deletion (8 nucleotides (c.699-706, del8) in exon 3 of the PHOX2B gene on chromosome 4. This led to the frame-shift mutation and malfunctioning gene expression product. Conclusion: Herein, we report a novel PHOX2B gene mutation in the patient diagnosed with the NB-HSCRCCHS cluster. The resulting gene expression product may be a contributor to the clinical manifestations of these genetic disorders. It adds to the library of the mutations linked to this syndrome. Consequently, we suggest that screening for the PHOX2B mutations becomes an integral part of genetic counseling, prenatal screening, and preparing supportive therapy upon delivery.
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- 2015
30. Reflections on 16th nursing ethics and 1st International Care Ethics Observatory conference, University of Surrey, Guildford, 17th and 18th July 2015
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Holly Vivian, Kavitha Karunakaran, Duncan Hamilton, Emily Walker, Magdalena Zasada, and Cajetan Ndukwe
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medicine.medical_specialty ,business.industry ,Nursing ethics ,Media studies ,Congresses as Topic ,Care ethics ,Issues, ethics and legal aspects ,Nursing care ,Nursing ,Observatory ,Ethics, Nursing ,Humans ,Medicine ,Nursing Care ,business - Published
- 2015
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31. 151 Cardiac Function at the Age of 7 Years of Regional Birth Cohort of Extremely Low Birth Weight Infants (< 1000g)
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Jacek J Pietrzyk, Małgorzata Klimek, Magdalena Zasada, A Grudzien, Przemko Kwinta, and Mateusz Jagła
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Cardiac function curve ,Pediatrics ,medicine.medical_specialty ,Ambulatory blood pressure ,business.industry ,Cardiac index ,Low birth weight ,Blood pressure ,Pediatrics, Perinatology and Child Health ,Cohort ,Heart rate ,medicine ,medicine.symptom ,business ,Full Term - Abstract
Aim Assessment of long-term cardiac complications in the regional cohort of extremely low birth weight (ELBW) children born in 2002–2004. Material and Methods The study group comprising 81 children born as ELBW infants with the median birthweight of 890g (25 th –75 th percentile: 760–950) were evaluated at the mean age of 7 years. The control group included 40 children born full term. Echocardiography and 24-hour ambulatory blood pressure measurements were performed. Results Conclusions The former ELBW children have smaller heart’s diameters and to reach the same cardiac index their heart rate is faster. Moreover, the former ELBW children have higher blood pressure comparing to their peers.
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- 2012
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