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Sirén A, Nyman M, Syvänen J, Mattila K, Hirvonen J. Utility of brain imaging in pediatric patients with a suspected accidental spinal injury but no brain injury-related symptoms. Childs Nerv Syst 2024; 40:1435-1441. [PMID: 38279986 PMCID: PMC11026267 DOI: 10.1007/s00381-024-06298-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 01/20/2024] [Indexed: 01/29/2024]
Abstract
PURPOSE Imaging is the gold standard in diagnosing traumatic brain injury, but unnecessary scans should be avoided, especially in children and adolescents. Clinical decision-making rules often help to distinguish the patients who need imaging, but if spinal trauma is suspected, concomitant brain imaging is often conducted. Whether the co-occurrence of brain and spine injuries is high enough to justify head imaging in patients without symptoms suggesting brain injury is unknown. OBJECTIVE This study aims to assess the diagnostic yield of brain MRI in pediatric patients with suspected or confirmed accidental spinal trauma but no potential brain injury symptoms. METHODS We retrospectively reviewed the medical and imaging data of pediatric patients (under 18 years old) who have undergone concomitant MRI of the brain and spine because of acute spinal trauma in our emergency radiology department over a period of 8 years. We compared the brain MRI findings in patients with and without symptoms suggesting brain injury and contrasted spine and brain MRI findings. RESULTS Of 179 patients (mean age 11.7 years, range 0-17), 137 had symptoms or clinical findings suggesting brain injury, and 42 did not. None of the patients without potential brain injury symptoms had traumatic findings in brain MRI. This finding also applied to patients with high-energy trauma (n = 47) and was unrelated to spinal MRI findings. CONCLUSION Pediatric accidental trauma patients with suspected or confirmed spine trauma but no symptoms or clinical findings suggesting brain injury seem not to benefit from brain imaging.
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Affiliation(s)
- Aapo Sirén
- Department of Radiology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland.
| | - Mikko Nyman
- Department of Radiology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland
| | - Johanna Syvänen
- Department of Pediatric Orthopedic Surgery, University of Turku and Turku University Hospital, Turku, Finland
| | - Kimmo Mattila
- Department of Radiology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland
| | - Jussi Hirvonen
- Department of Radiology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland
- Medical Imaging Center, Department of Radiology, Tampere University and Tampere University Hospital, Tampere, Finland
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Agbaje AO, Barker AR, Lewandowski AJ, Leeson P, Tuomainen TP. Accelerometer-based sedentary time, light physical activity, and moderate-to-vigorous physical activity from childhood with arterial stiffness and carotid IMT progression: A 13-year longitudinal study of 1339 children. Acta Physiol (Oxf) 2024; 240:e14132. [PMID: 38509836 DOI: 10.1111/apha.14132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 02/18/2024] [Accepted: 03/04/2024] [Indexed: 03/22/2024]
Abstract
AIMS We examined the longitudinal associations of sedentary time (ST), light physical activity (LPA), and moderate-to-vigorous PA (MVPA) from childhood with carotid-femoral pulse wave velocity (cfPWV), a measure of arterial stiffness and carotid intima-media thickness (cIMT). METHODS We studied 1339 children, aged 11 years from Avon Longitudinal Study of Parents and Children, UK, followed up for 13 years. Accelerometer-based ST, LPA, and MVPA were assessed at ages 11, 15, and 24 years clinic visits. cfPWV and cIMT were measured with Vicorder and ultrasound, respectively, at ages 17 and 24 years. RESULTS Among 1339 [56.4% female] participants, mean ST increased from ages 11 through 24 years, while mean LPA and MVPA decreased. Persistently high ST tertile from childhood was associated with increased cfPWV progression, effect estimate 0.047 m/s; [(95% CI 0.005 to 0.090); p = 0.030], but not cIMT progression. Persistently high LPA tertile category was associated with decreased cfPWV progression in males -0.022 m/s; [(-0.028 to -0.017); p < 0.001] and females -0.027 m/s; [(-0.044 to -0.010); p < 0.001]. Cumulative LPA exposure decreased the odds of progressively worsening cfPWV [Odds ratio 0.994 (0.994-0.995); p < 0.0001] and cIMT. Persistent exposure to ≥60 min/day of MVPA was paradoxically associated with increased cfPWV progression in males 0.053 m/s; [(0.030 to 0.077); p < 0.001] and females 0.012 m/s; [(0.002 to 0.022); p = 0.016]. Persistent exposure to ≥60 min/day of MVPA was inversely associated with cIMT progression in females -0.017 mm; [(-0.026 to -0.009); p < 0.001]. CONCLUSION LPA >3 h/day from childhood may attenuate progressively worsening vascular damage associated with increased ST in youth.
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Affiliation(s)
- Andrew O Agbaje
- Institute of Public Health and Clinical Nutrition, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
- Children's Health and Exercise Research Centre, Department of Public Health and Sports Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK
| | - Alan R Barker
- Children's Health and Exercise Research Centre, Department of Public Health and Sports Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter, UK
| | - Adam J Lewandowski
- Radcliffe Department of Medicine, Oxford Cardiovascular Clinical Research Facility Division of Cardiovascular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK
- Division of Cardiovascular Medicine, Radcliffe Department of Medicine, Oxford Centre for Clinical Magnetic Resonance Research, University of Oxford, Oxford, UK
| | - Paul Leeson
- Radcliffe Department of Medicine, Oxford Cardiovascular Clinical Research Facility Division of Cardiovascular Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Tomi-Pekka Tuomainen
- Institute of Public Health and Clinical Nutrition, School of Medicine, Faculty of Health Sciences, University of Eastern Finland, Kuopio, Finland
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Grönroos L, Rautava P, Setänen S, Nyman A, Ekholm E, Lehtonen L, Ylijoki M. Associations between the aetiology of preterm birth and mortality and neurodevelopment up to 11 years. Acta Paediatr 2024; 113:471-479. [PMID: 37926858 DOI: 10.1111/apa.17027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 10/16/2023] [Accepted: 10/25/2023] [Indexed: 11/07/2023]
Abstract
AIM To investigate how the aetiology of very preterm birth/very low birth weight is associated with mortality and later neurodevelopmental outcomes. METHODS Very preterm/very low-birth weight singletons were categorised based on the aetiology of preterm birth: spontaneous preterm birth (n = 47, 28.1%), preterm premature rupture of membranes (n = 56, 33.5%) or placental vascular pathology (n = 64, 38.3%). Mortality, cerebral palsy, severe cognitive impairment by 11 years of age (<2SD) and mean full-scale intelligence quotient at 11 years were studied in association with birth aetiology. RESULTS There was no difference in mortality or rate of cerebral palsy according to birth aetiologies. The rate of severe cognitive impairment was lower (4.9% vs. 15.3%) in the preterm premature rupture of the membrane group in comparison to the placental vascular pathology group (OR 0.2, 95% CI 0.03-0.9, adjusted for gestational age). At 11 years, there was no statistically significant difference in the mean full-scale intelligence quotient. CONCLUSION Placental vascular pathology, as the aetiology of very preterm birth/very low birth weight, is associated with a higher rate of severe cognitive impairments in comparison to preterm premature rupture of membranes, although there was no difference in the mean full-scale intelligence quotient at 11 years. The aetiology of very preterm birth/very low birth weight was not associated with mortality or the rate of cerebral palsy.
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Affiliation(s)
- Linda Grönroos
- Department of Pediatric Neurology, University of Turku and Turku University Hospital, Turku, Finland
| | - Päivi Rautava
- Department of Public Health, University of Turku, Turku, Finland
| | - Sirkku Setänen
- Department of Pediatric Neurology, University of Turku and Turku University Hospital, Turku, Finland
| | - Anna Nyman
- Department of Psychology, University of Turku, Turku, Finland
| | - Eeva Ekholm
- Department of Obstetrics and Gynaecology, University of Turku and Turku University Hospital, Turku, Finland
| | - Liisa Lehtonen
- Department of Pediatrics, University of Turku and Turku University Hospital, Turku, Finland
| | - Milla Ylijoki
- Department of Pediatric Neurology, University of Turku and Turku University Hospital, Turku, Finland
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Tiainen SM, Unga J, Uusalo P. A case report of an accidental iatrogenic dexmedetomidine overdose in an adult. Int J Emerg Med 2024; 17:27. [PMID: 38413847 PMCID: PMC10898147 DOI: 10.1186/s12245-024-00613-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 02/22/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND Dexmedetomidine is a sedative drug with a wide safety margin. CASE PRESENTATION We present a case of accidental iatrogenic dexmedetomidine overdose in an adult patient during high-intensity focused ultrasound (HIFU) treatment. This is the first case report of an adult patient receiving an intravenous push of dexmedetomidine. Overdose resulted in severe oversedation, but symptoms receded spontaneously over time. CONCLUSIONS Dexmedetomidine overdoses are infrequent, and they are usually the result of an administration error.
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Affiliation(s)
- Suvi-Maria Tiainen
- Department of Anaesthesiology and Intensive Care, University of Turku, Kiinamyllynkatu 4-8, P.O. Box 51, Turku, FI-20521, Finland
- Division of Perioperative Services, Intensive Care and Pain Medicine, Turku University Hospital, Kiinamyllynkatu 4-8, P.O. Box 51, Turku, FI-20521, Finland
- Department of Anaesthesiology and Intensive Care, Satasairaala Central Hospital, Satakunta Hospital District, Pori, Finland
| | - Jonni Unga
- Department of Emergency Medicine, University of Turku, Kiinamyllynkatu 4-8, P.O. Box 51, Turku, FI- 20521, Finland
| | - Panu Uusalo
- Department of Anaesthesiology and Intensive Care, University of Turku, Kiinamyllynkatu 4-8, P.O. Box 51, Turku, FI-20521, Finland.
- Division of Perioperative Services, Intensive Care and Pain Medicine, Turku University Hospital, Kiinamyllynkatu 4-8, P.O. Box 51, Turku, FI-20521, Finland.
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Li S, Wang Y, van der Stoel M, Zhou X, Madhusudan S, Kanerva K, Nguyen VD, Eskici N, Olkkonen VM, Zhou Y, Raivio T, Ikonen E. HiHo-AID2: boosting homozygous knock-in efficiency enables robust generation of human auxin-inducible degron cells. Genome Biol 2024; 25:58. [PMID: 38409044 PMCID: PMC10895734 DOI: 10.1186/s13059-024-03187-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 02/14/2024] [Indexed: 02/28/2024] Open
Abstract
Recent developments in auxin-inducible degron (AID) technology have increased its popularity for chemogenetic control of proteolysis. However, generation of human AID cell lines is challenging, especially in human embryonic stem cells (hESCs). Here, we develop HiHo-AID2, a streamlined procedure for rapid, one-step generation of human cancer and hESC lines with high homozygous degron-tagging efficiency based on an optimized AID2 system and homology-directed repair enhancers. We demonstrate its application for rapid and inducible functional inactivation of twelve endogenous target proteins in five cell lines, including targets with diverse expression levels and functions in hESCs and cells differentiated from hESCs.
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Affiliation(s)
- Shiqian Li
- Department of Anatomy and Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland.
- Minerva Foundation Institute for Medical Research, 00290, Helsinki, Finland.
| | - Yafei Wang
- Stem Cells and Metabolism Research Program, Research Programs Unit, and Department of Physiology, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
| | - Miesje van der Stoel
- Department of Anatomy and Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, 00290, Helsinki, Finland
| | - Xin Zhou
- Department of Anatomy and Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, 00290, Helsinki, Finland
| | - Shrinidhi Madhusudan
- Stem Cells and Metabolism Research Program, Research Programs Unit, and Department of Physiology, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
| | - Kristiina Kanerva
- Department of Anatomy and Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, 00290, Helsinki, Finland
| | - Van Dien Nguyen
- Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Nazli Eskici
- Stem Cells and Metabolism Research Program, Research Programs Unit, and Department of Physiology, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
| | - Vesa M Olkkonen
- Department of Anatomy and Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, 00290, Helsinki, Finland
| | - You Zhou
- Systems Immunity Research Institute, Cardiff University, Cardiff, CF14 4XN, UK
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Taneli Raivio
- Stem Cells and Metabolism Research Program, Research Programs Unit, and Department of Physiology, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland
- New Children's Hospital, Pediatric Research Center, Helsinki University Hospital, 00290, Helsinki, Finland
| | - Elina Ikonen
- Department of Anatomy and Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, 00290, Helsinki, Finland.
- Minerva Foundation Institute for Medical Research, 00290, Helsinki, Finland.
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Korhonen E. Inflammasome activation in response to aberrations of cellular homeostasis in epithelial cells from human cornea and retina. Acta Ophthalmol 2024; 102 Suppl 281:3-68. [PMID: 38386419 DOI: 10.1111/aos.16646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 01/16/2024] [Indexed: 02/24/2024]
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Tornivuori A, Kallio M, Culnane E, Pasanen M, Salanterä S, Sawyer S, Kosola S. Transition readiness and anxiety among adolescents with a chronic condition and their parents: A cross-sectional international study. J Adv Nurs 2024; 80:756-764. [PMID: 37691321 DOI: 10.1111/jan.15860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 08/14/2023] [Accepted: 08/30/2023] [Indexed: 09/12/2023]
Abstract
AIMS To evaluate associations of age, transition readiness and anxiety in adolescents with chronic conditions and to compare perceptions of adolescents and their parents regarding health self-management and transition readiness. DESIGN Cross-sectional international study, reported following STROBE guidelines. METHODS Adolescents and young adults (N = 512, mean age 17.7) with a chronic medical condition and their parents (N = 322) from Finland and Australia. Data were collected through surveys (between September 2017 and December 2020). Adolescents reported the duration of their condition. Age at survey was defined by the response date of the questionnaires. Validated questionnaires were used to measure transition readiness (Am I ON TRAC? for Adult Care) and anxiety related to transition of care (State-Trait Anxiety Inventory short form). Perceptions of health self-management and transition readiness were compared in adolescent/parent dyads. Associations were explored using Spearman's correlation. RESULTS Duration of condition and age at survey correlated weakly with transition readiness knowledge and behaviour. Higher transition readiness knowledge scores correlated with higher behaviour scores. Higher transition readiness behaviour scores were associated with lower levels of anxiety. Adolescents were less anxious than their parents and adolescents and parents mostly agreed about health self-management and transition readiness. CONCLUSION Transition readiness should be determined by an assessment of knowledge, self-management and psychosocial skills instead of age alone. Further research should address how well transition readiness predicts positive health outcomes after the transfer of care. IMPLICATIONS FOR PATIENT CARE Transition readiness and self-management skills should be formally assessed because positive feedback may decrease the anxiety of both adolescents and their parents regarding the transfer of care. REPORTING METHOD We have adhered to the STROBE statement, using STROBE checklist for cross-sectional studies. PATIENT OR PUBLIC INVOLVEMENT STATEMENT No patient or public involvement. TRIAL AND PROTOCOL REGISTRATION ClinicalTrials.org NCT04631965.
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Affiliation(s)
- Anna Tornivuori
- Nursing Science, University of Turku, Turku, Finland
- Nursing Research Center NRC, Helsinki University Hospital, Helsinki, Finland
- Pediatric Research Center, New Children's Hospital, Helsinki, Finland
| | - Mira Kallio
- Pediatric Research Center, New Children's Hospital, Helsinki, Finland
- Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Evelyn Culnane
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Miko Pasanen
- Nursing Science, University of Turku, Turku, Finland
| | - Sanna Salanterä
- Nursing Science, University of Turku, Turku, Finland
- Turku University Hospital, Turku, Finland
| | - Susan Sawyer
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
- Royal Children's Hospital, Melbourne, Australia
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Adolescent Medicine, The Royal Children's Hospital Melbourne, Melbourne, Australia
| | - Silja Kosola
- Pediatric Research Center, New Children's Hospital, Helsinki, Finland
- Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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Skinner AM, Barker AR, Moore SA, Soininen S, Haapala EA, Väistö J, Westgate K, Brage S, Lakka TA, Vlachopoulos D. Cross-sectional and longitudinal associations between the 24-hour movement behaviours, including muscle and bone strengthening activity, with bone and lean mass from childhood to adolescence. BMC Public Health 2024; 24:227. [PMID: 38238707 PMCID: PMC10797891 DOI: 10.1186/s12889-024-17711-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 01/09/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND This study aimed to assess whether moderate-to-vigorous physical activity (MVPA), sport and exercise as a proxy measure of muscle and bone strengthening activity, sedentary behaviour, and sleep were associated with total-body-less-head (TBLH) bone mineral content (BMC) and TBLH lean mass cross-sectionally and longitudinally from age 6 to 9 years and age 9 to 11 years to age 15 to 17 years. METHODS We used longitudinal data from a population sample of Finnish children from the Physical Activity and Nutrition in Children study (age 6 to 9 years: n = 478, 229 females; age 9 to 11 years: n = 384, 197 females; age 15 to 17 years: n = 222, 103 females). Linear regression analysed the cross-sectional and longitudinal associations between accelerometer-assessed MVPA, sedentary time and sleep, and questionnaire-assessed sport and exercise participation and screen time with dual-energy X-ray absorptiometry-assessed TBLH BMC and lean mass. RESULTS In females, MVPA at age 6 to 9 years was positively associated with TBLH BMC at age 15 to 17 years (β = 0.008, p = 0.010). Sport and exercise at age 9 to 11 years was positively associated with TBLH BMC (β = 0.020, p = 0.002) and lean mass (β = 0.343, p = 0.040) at age 15 to 17 years. MVPA at age 9 to 11 years was positively associated with TBLH lean mass (β = 0.272, p = 0.004) at age 15 to 17 years. In males, sleep at age 6 to 9 years was positively associated with TBLH lean mass (β = 0.382, p = 0.003) at age 15 to 17 years. Sport and exercise at age 9 to 11 years was positively associated with TBLH BMC (β = 0.027, p = 0.012) and lean mass (β = 0.721, p < 0.001) at age 15 to 17 years. CONCLUSIONS Promoting engagement in the 24-hour movement behaviours in childhood, particularly sport and exercise to strengthen muscle and bone, is important in supporting bone and lean mass development in adolescence. TRIAL REGISTRATION NCT01803776; first trial registration date: 04/03/2013.
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Affiliation(s)
- Annie M Skinner
- Children's Health and Exercise Research Centre, University of Exeter, Exeter, UK
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Alan R Barker
- Children's Health and Exercise Research Centre, University of Exeter, Exeter, UK
| | - Sarah A Moore
- School of Health and Human Performance, Dalhousie University, Halifax, Canada
| | - Sonja Soininen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Physician and Nursing Services, Health and Social Services Centre, Wellbeing Services County of North Savo, Varkaus, Finland
| | - Eero A Haapala
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Juuso Väistö
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Kate Westgate
- MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Soren Brage
- MRC Epidemiology Unit, University of Cambridge, Cambridge, UK
| | - Timo A Lakka
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
- Department of Clinical Physiology and Nuclear Medicine, Kuopio University Hospital, Kuopio, Finland
- Foundation for Research in Health Exercise and Nutrition, Kuopio Research Institute of Exercise Medicine, Kuopio, Finland
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Hurme P, Sahla R, Rückert B, Vahlberg T, Turunen R, Vuorinen T, Akdis M, Söderlund‐Venermo M, Akdis C, Jartti T. Human bocavirus 1 coinfection is associated with decreased cytokine expression in the rhinovirus-induced first wheezing episode in children. Clin Transl Allergy 2023; 13:e12311. [PMID: 38006383 PMCID: PMC10642552 DOI: 10.1002/clt2.12311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/20/2023] [Accepted: 10/22/2023] [Indexed: 11/27/2023] Open
Abstract
BACKGROUND Rhinovirus (RV)-induced first wheezing episodes in children are associated with a markedly increased risk of asthma. Previous studies have suggested that human bocavirus 1 (HBoV1) may modify RV-induced immune responses in young children. We investigated cytokine profiles of sole RV- and dual RV-HBoV1-induced first wheezing episodes, and their association with severity and prognosis. METHODS Fifty-two children infected with only RV and nine children infected with dual RV-HBoV1, aged 3-23 months, with severe first wheezing episodes were recruited. At acute illness and 2 weeks later, peripheral blood mononuclear cells were isolated, and stimulated with anti-CD3/anti-CD28 in vitro. Multiplex ELISA was used to quantitatively identify 56 different cytokines at both study points. Patients were prospectively followed for 4 years. RESULTS The mean age of the children was 14.3 months, and 30% were sensitized. During the acute illness, the adjusted analyses revealed a decrease in the expression of IL-1b, MIP-1b, Regulated upon activation, normal T cell expressed and presumably secreted (CCL5), TNF-a, TARC, and ENA-78 in the RV-HBoV1 group compared with the RV group. In the convalescence phase, the RV-HBoV1 group was characterized by decreased expression of Fractalkine, MCP-3, and IL-8 compared to the RV group. Furthermore, the hospitalization time was associated with the virus group and cytokine response (interaction p < 0.05), signifying that increased levels of epidermal growth factor and MIP-1b were related with a shorter duration of hospitalization in the RV-HBoV1 coinfection group but not in the RV group. CONCLUSIONS Different cytokine response profiles were detected between the RV and the RV-HBoV1 groups. Our results show the idea that RV-induced immune responses may be suppressed by HBoV1.
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Affiliation(s)
- Pekka Hurme
- Department of Pediatrics and Adolescent MedicineTurku University HospitalUniversity of TurkuTurkuFinland
| | - Reetta Sahla
- Department of Pediatrics and Adolescent MedicineTurku University HospitalUniversity of TurkuTurkuFinland
| | - Beate Rückert
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZürichChristine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
| | - Tero Vahlberg
- Department of BiostatisticsUniversity of TurkuTurkuFinland
| | - Riitta Turunen
- Department of Pediatrics and Adolescent MedicineTurku University HospitalUniversity of TurkuTurkuFinland
- New Children's HospitalHelsinki University HospitalUniversity of HelsinkiHelsinkiFinland
| | - Tytti Vuorinen
- Institute of BiomedicineUniversity of TurkuTurkuFinland
- Department of Clinical MicrobiologyTurku University HospitalTurkuFinland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZürichChristine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
| | | | - Cezmi Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF)University of ZürichChristine Kühne‐Center for Allergy Research and Education (CK‐CARE)DavosSwitzerland
| | - Tuomas Jartti
- Department of Pediatrics and Adolescent MedicineTurku University HospitalUniversity of TurkuTurkuFinland
- Research Unit of Clinical MedicineMedical Research CenterUniversity of OuluOuluFinland
- Department of Pediatrics and Adolescent MedicineOulu University HospitalOuluFinland
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Itälinna V, Kaltiainen H, Forss N, Liljeström M, Parkkonen L. Using normative modeling and machine learning for detecting mild traumatic brain injury from magnetoencephalography data. PLoS Comput Biol 2023; 19:e1011613. [PMID: 37943963 PMCID: PMC10662745 DOI: 10.1371/journal.pcbi.1011613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 11/21/2023] [Accepted: 10/18/2023] [Indexed: 11/12/2023] Open
Abstract
New biomarkers are urgently needed for many brain disorders; for example, the diagnosis of mild traumatic brain injury (mTBI) is challenging as the clinical symptoms are diverse and nonspecific. EEG and MEG studies have demonstrated several population-level indicators of mTBI that could serve as objective markers of brain injury. However, deriving clinically useful biomarkers for mTBI and other brain disorders from EEG/MEG signals is hampered by the large inter-individual variability even across healthy people. Here, we used a multivariate machine-learning approach to detect mTBI from resting-state MEG measurements. To address the heterogeneity of the condition, we employed a normative modeling approach and modeled MEG signal features of individual mTBI patients as deviations with respect to the normal variation. To this end, a normative dataset comprising 621 healthy participants was used to determine the variation in power spectra across the cortex. In addition, we constructed normative datasets based on age-matched subsets of the full normative data. To discriminate patients from healthy control subjects, we trained support-vector-machine classifiers on the quantitative deviation maps for 25 mTBI patients and 20 controls not included in the normative dataset. The best performing classifier made use of the full normative data across the entire age and frequency ranges. This classifier was able to distinguish patients from controls with an accuracy of 79%. Inspection of the trained model revealed that low-frequency activity in the theta frequency band (4-8 Hz) is a significant indicator of mTBI, consistent with earlier studies. The results demonstrate the feasibility of using normative modeling of MEG data combined with machine learning to advance diagnosis of mTBI and identify patients that would benefit from treatment and rehabilitation. The current approach could be applied to a wide range of brain disorders, thus providing a basis for deriving MEG/EEG-based biomarkers.
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Affiliation(s)
- Veera Itälinna
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Aalto, Finland
| | - Hanna Kaltiainen
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Aalto, Finland
- Department of Neurology, Helsinki University Hospital and Clinical Neurosciences, Neurology, University of Helsinki, Helsinki, Finland
| | - Nina Forss
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Aalto, Finland
- Department of Neurology, Helsinki University Hospital and Clinical Neurosciences, Neurology, University of Helsinki, Helsinki, Finland
| | - Mia Liljeström
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Aalto, Finland
- BioMag Laboratory, HUS Medical Imaging Center, Helsinki University Hospital, Helsinki, Finland
| | - Lauri Parkkonen
- Department of Neuroscience and Biomedical Engineering, Aalto University School of Science, Aalto, Finland
- Aalto NeuroImaging, Aalto University School of Science, Aalto, Finland
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11
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Kettinen J, Tikkanen H, Hiltunen M, Murray A, Horn N, Taylor WR, Venojärvi M. Cognitive and biomarker responses in healthy older adults to a 18-hole golf round and different walking types: a randomised cross-over study. BMJ Open Sport Exerc Med 2023; 9:e001629. [PMID: 37860153 PMCID: PMC10582962 DOI: 10.1136/bmjsem-2023-001629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2023] [Indexed: 10/21/2023] Open
Abstract
Introduction The global burden of age-related cognitive decline is increasing, with the number of people aged 60 and over expected to double by 2050. This study compares the acute effects of age-appropriate cognitively demanding aerobic exercises involving walking, on cognitive functions and exerkine responses such as brain-derived neurotrophic factor (BDNF) and cathepsin B (CTSB) in older, healthy adults. Methods/design Healthy older golfers (n=25, 16 male and 9 female, 69±4 years) were enrolled in a 5-day randomised cross-over study and completed three different exercise trials (18-hole golf round, 6 km Nordic walking, 6 km walking) in a real-life environment, in random order and at a self-selected pace. Differences in cognition (the Trail-Making Test (TMT) AB) and exerkines (BDNF and CTSB) were analysed within groups using the Wilcoxon signed-rank test and between groups using the Kruskal-Wallis test. Results All exercise types resulted in a significant decrease in the TMT A-test (p<0.05; golf: -4.43±1.5 s, Nordic walking: -4.63±1.6 s, walking: -6.75±2.26 s), where Nordic walking and walking demonstrated a decrease in the TMT B-test (p<0.05; Nordic walking: -9.62±7.2 s, walking: -7.55±3.2 s). In addition, all exercise types produced significant decreases in the TMT AB test scores (p<0.05), and Nordic walking (p=0.035) showed decreases in the TMTB-TMTA-test. There were no immediate postexercise changes in the levels of BDNF or CTSB. Conclusion Acute bouts of golf, Nordic walking and walking improved cognitive functions irrespective of exerkines in healthy older adults. In addition, Nordic walking and walking in general enhanced executive functions. No significant effects were seen on the levels of BDNF and CTSB. Trial registration number ISRCTN10007294.
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Affiliation(s)
- Julia Kettinen
- Institute of Biomedicine, Sports and Exercise Medicine, School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Heikki Tikkanen
- Institute of Biomedicine, Sports and Exercise Medicine, School of Medicine, University of Eastern Finland, Kuopio, Finland
| | - Mikko Hiltunen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Andrew Murray
- Edinburgh Sports Medicine Research Network & UK Collaborating Centre on Injury and Illness Prevention in Sport (UKCCIIS), University of Edinburgh, Edinburgh, UK
- Medical and Scientific Department, The R&A, St Andrews, UK
| | - Nils Horn
- Institute for Biomechanics, ETH Zürich, Zürich, Switzerland
- Schulthess Clinic, Zürich, Switzerland
| | | | - Mika Venojärvi
- Institute of Biomedicine, Sports and Exercise Medicine, School of Medicine, University of Eastern Finland, Kuopio, Finland
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12
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Sirén A, Nyman M, Syvänen J, Mattila K, Hirvonen J. Clinical outcome following magnetic resonance imaging as first-line imaging in low-impact pediatric spine trauma: a single-center retrospective observational study. Pediatr Radiol 2023; 53:2269-2280. [PMID: 37518674 PMCID: PMC10562339 DOI: 10.1007/s00247-023-05721-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 08/01/2023]
Abstract
BACKGROUND Pediatric spinal trauma is rare, but the consequences of a missed injury can be devastating. Medical imaging is often needed in addition to physical examination. Conventional radiographs are widely recommended, but their negative predictive value is limited. Computed tomography (CT) is more sensitive but has a higher radiation dose. Magnetic resonance imaging (MRI) has superior soft tissue contrast and lacks ionizing radiation, but it is more expensive and time-consuming. Thus, the debate regarding the most suitable imaging method is still ongoing. OBJECTIVE This study examined the ability of MRI to exclude injuries requiring surgical treatment as a first-line imaging method in low-impact pediatric spine trauma. MATERIALS AND METHODS We retrospectively reviewed the medical records and imaging data of children (under 18 years old) who had suspected spinal trauma and were scanned using MRI in our emergency radiology department over a period of 8 years. We assessed the ability of MRI to detect unstable injuries by searching for later occurrences of primarily missed injuries requiring surgery. RESULTS Of 396 patients (median age 12 years, range 0-17), 114 (29%) had MRI findings suggesting an acute injury. Bony injuries were detected in 78 patients (20%) and ligamentous or other soft tissue injuries in 82 patients (21%). In the subgroup of 376 patients (median age 12 years, range 0-17) with at least 6 months of clinical follow-up, no missed injuries demanding surgical intervention or immobilization occurred after spinal MRI as first-line imaging. No adverse events related to MRI or anesthesia occurred. CONCLUSION MRI can detect injuries requiring surgical treatment as a first-line imaging method in suspected low-impact pediatric spinal trauma and is safe to use in this selected population.
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Affiliation(s)
- Aapo Sirén
- Department of Radiology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland.
| | - Mikko Nyman
- Department of Radiology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland
| | - Johanna Syvänen
- Department of Pediatric Orthopedic Surgery, University of Turku and Turku University Hospital, Turku, Finland
| | - Kimmo Mattila
- Department of Radiology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland
| | - Jussi Hirvonen
- Department of Radiology, University of Turku and Turku University Hospital, Kiinamyllynkatu 4-8, 20520, Turku, Finland
- Medical Imaging Center, Department of Radiology, Tampere University and Tampere University Hospital, Tampere, Finland
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Rauniyar K, Bokharaie H, Jeltsch M. Expansion and collapse of VEGF diversity in major clades of the animal kingdom. Angiogenesis 2023; 26:437-461. [PMID: 37017884 PMCID: PMC10328876 DOI: 10.1007/s10456-023-09874-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/17/2023] [Indexed: 04/06/2023]
Abstract
Together with the platelet-derived growth factors (PDGFs), the vascular endothelial growth factors (VEGFs) form the PDGF/VEGF subgroup among cystine knot growth factors. The evolutionary relationships within this subgroup have not been examined thoroughly to date. Here, we comprehensively analyze the PDGF/VEGF growth factors throughout all animal phyla and propose a phylogenetic tree. Vertebrate whole-genome duplications play a role in expanding PDGF/VEGF diversity, but several limited duplications are necessary to account for the temporal pattern of emergence. The phylogenetically oldest PDGF/VEGF-like growth factor likely featured a C-terminus with a BR3P signature, a hallmark of the modern-day lymphangiogenic growth factors VEGF-C and VEGF-D. Some younger VEGF genes, such as VEGFB and PGF, appeared completely absent in important vertebrate clades such as birds and amphibia, respectively. In contrast, individual PDGF/VEGF gene duplications frequently occurred in fish on top of the known fish-specific whole-genome duplications. The lack of precise counterparts for human genes poses limitations but also offers opportunities for research using organisms that diverge considerably from humans. Sources for the graphical abstract: 326 MYA and older [1]; 72-240 MYA [2]; 235-65 MYA [3].
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Affiliation(s)
- Khushbu Rauniyar
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Biocenter 2, (Viikinkaari 5E), P.O. Box. 56, 00790, Helsinki, Finland
| | - Honey Bokharaie
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Biocenter 2, (Viikinkaari 5E), P.O. Box. 56, 00790, Helsinki, Finland
| | - Michael Jeltsch
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Biocenter 2, (Viikinkaari 5E), P.O. Box. 56, 00790, Helsinki, Finland.
- Individualized Drug Therapy Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
- Wihuri Research Institute, Helsinki, Finland.
- Helsinki One Health, University of Helsinki, Helsinki, Finland.
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Toivonen S, Lehtinen M, Raivio P, Sinisalo J, Loimaala A, Uusitalo V. The Presence of Residual Vascular and Adipose Tissue Inflammation on 18F-FDG PET in Patients with Chronic Coronary Artery Disease. Nucl Med Mol Imaging 2023; 57:117-125. [PMID: 37181800 PMCID: PMC10172407 DOI: 10.1007/s13139-022-00785-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/27/2022] Open
Abstract
Purpose We evaluated the residual vascular and adipose tissue inflammation in patients with chronic coronary artery disease (CAD) using positron emission tomography (PET). Methods Our study population consisted of 98 patients with known CAD and 94 control subjects who had undergone 18F-fluorodeoxyglucose (18F-FDG) PET due to non-cardiac reasons. Aortic root and vena cava superior 18F-FDG uptake were measured to obtain the aortic root target-to-background ratio (TBR). In addition, adipose tissue PET measurements were done in pericoronary, epicardial, subcutaneous, and thoracic adipose tissue. Adipose tissue TBR was calculated using the left atrium as a reference region. Data are presented as mean ± standard deviation or as median (interquartile range). Results The aortic root TBR was higher in CAD patients compared to control subjects, 1.68 (1.55-1.81) vs. 1.53 (1.43-1.64), p < 0.001. Subcutaneous adipose tissue uptake was elevated in CAD patients 0.30 (0.24-0.35) vs. 0.27 (0.23-0.31), p < 0.001. Metabolic activity of CAD patients and control subjects was comparable in the pericoronary (0.81 ± 0.18 vs. 0.80 ± 0.16, p = 0.59), epicardial (0.53 ± 0.21 vs. 0.51 ± 0.18, p = 0.38) and thoracic (0.31 ± 0.12 vs. 0.28 ± 0.12, p = 0.21) adipose tissue regions. Aortic root or adipose tissue 18F-FDG uptake was not associated with the common CAD risk factors, coronary calcium score, or aortic calcium score (p value > 0.05). Conclusion Patients with a chronic CAD had a higher aortic root and subcutaneous adipose tissue 18F-FDG uptake compared to control patients, which suggests residual inflammatory risk.
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Affiliation(s)
- Sini Toivonen
- Department of Cardiac Surgery, Heart and Lung Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Clinical Physiology and Nuclear Medicine, Helsinki University Hospital and University of Helsinki, Paciuksenkatu 3, 00290 Helsinki, Finland
| | - Miia Lehtinen
- Department of Cardiac Surgery, Heart and Lung Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Peter Raivio
- Department of Cardiac Surgery, Heart and Lung Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Juha Sinisalo
- Department of Cardiology, Heart and Lung Center, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Antti Loimaala
- Clinical Physiology and Nuclear Medicine, Helsinki University Hospital and University of Helsinki, Paciuksenkatu 3, 00290 Helsinki, Finland
- Faculty of Medicine, Research Program in Systems Oncology, University of Helsinki, Helsinki, Finland
| | - Valtteri Uusitalo
- Clinical Physiology and Nuclear Medicine, Helsinki University Hospital and University of Helsinki, Paciuksenkatu 3, 00290 Helsinki, Finland
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Nuutinen M, Haukka J, Virkkula P, Torkki P, Toppila-Salmi S. Using machine learning for the personalised prediction of revision endoscopic sinus surgery. PLoS One 2022; 17:e0267146. [PMID: 35486626 PMCID: PMC9053825 DOI: 10.1371/journal.pone.0267146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 04/03/2022] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Revision endoscopic sinus surgery (ESS) is often considered for chronic rhinosinusitis (CRS) if maximal conservative treatment and baseline ESS prove insufficient. Emerging research outlines the risk factors of revision ESS. However, accurately predicting revision ESS at the individual level remains uncertain. This study aims to examine the prediction accuracy of revision ESS and to identify the effects of risk factors at the individual level. METHODS We collected demographic and clinical variables from the electronic health records of 767 surgical CRS patients ≥16 years of age. Revision ESS was performed on 111 (14.5%) patients. The prediction accuracy of revision ESS was examined by training and validating different machine learning models, while the effects of variables were analysed using the Shapley values and partial dependence plots. RESULTS The logistic regression, gradient boosting and random forest classifiers performed similarly in predicting revision ESS. Area under the receiving operating characteristic curve (AUROC) values were 0.744, 0.741 and 0.730, respectively, using data collected from the baseline visit until six months after baseline ESS. The length of time during which data were collected improved the prediction performance. For data collection times of 0, 3, 6 and 12 months after baseline ESS, AUROC values for the logistic regression were 0.682, 0.715, 0.744 and 0.784, respectively. The number of visits before or after baseline ESS, the number of days from the baseline visit to the baseline ESS, patient age, CRS with nasal polyps (CRSwNP), asthma, non-steroidal anti-inflammatory drug exacerbated respiratory disease and immunodeficiency or suspicion of it all associated with revision ESS. Patient age and number of visits before baseline ESS carried non-linear effects for predictions. CONCLUSIONS Intelligent data analysis identified important predictors of revision ESS at the individual level, such as the frequency of clinical visits, patient age, Type 2 high diseases and immunodeficiency or a suspicion of it.
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Affiliation(s)
- Mikko Nuutinen
- Haartman Institute, University of Helsinki, Helsinki, Finland
- Nordic Healthcare Group, Helsinki, Finland
| | - Jari Haukka
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Paula Virkkula
- Department of Otorhinolaryngology-Head and Neck Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Paulus Torkki
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Sanna Toppila-Salmi
- Haartman Institute, University of Helsinki, Helsinki, Finland
- Skin and Allergy Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- * E-mail:
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Kostiniuk D, Tamminen H, Mishra PP, Marttila S, Raitoharju E. Methylation pattern of polymorphically imprinted nc886 is not conserved across mammalia. PLoS One 2022; 17:e0261481. [PMID: 35294436 PMCID: PMC8926257 DOI: 10.1371/journal.pone.0261481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 03/02/2022] [Indexed: 12/17/2022] Open
Abstract
Background In humans, the nc886 locus is a polymorphically imprinted metastable epiallele. Periconceptional conditions have an effect on the methylation status of nc886, and further, this methylation status is associated with health outcomes in later life, in line with the Developmental Origins of Health and Disease (DOHaD) hypothesis. Animal models would offer opportunities to study the associations between periconceptional conditions, nc886 methylation status and metabolic phenotypes further. Thus, we set out to investigate the methylation pattern of the nc886 locus in non-human mammals. Data We obtained DNA methylation data from the data repository GEO for mammals, whose nc886 gene included all three major parts of nc886 and had sequency similarity of over 80% with the human nc886. Our final sample set consisted of DNA methylation data from humans, chimpanzees, bonobos, gorillas, orangutangs, baboons, macaques, vervets, marmosets and guinea pigs. Results In human data sets the methylation pattern of nc886 locus followed the expected bimodal distribution, indicative of polymorphic imprinting. In great apes, we identified a unimodal DNA methylation pattern with 50% methylation level in all individuals and in all subspecies. In Old World monkeys, the between individual variation was greater and methylation on average was close to 60%. In guinea pigs the region around the nc886 homologue was non-methylated. Results obtained from the sequence comparison of the CTCF binding sites flanking the nc886 gene support the results on the DNA methylation data. Conclusions Our results indicate that unlike in humans, nc886 is not a polymorphically imprinted metastable epiallele in non-human primates or in guinea pigs, thus implying that animal models are not applicable for nc886 research. The obtained data suggests that the nc886 region may be classically imprinted in great apes, and potentially also in Old World monkeys, but not in guinea pigs.
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Affiliation(s)
- Daria Kostiniuk
- Molecular Epidemiology, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Hely Tamminen
- Molecular Epidemiology, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Pashupati P. Mishra
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Cardiovascular Research Centre, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland
| | - Saara Marttila
- Molecular Epidemiology, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Gerontology Research Center, Tampere University, Tampere, Finland
| | - Emma Raitoharju
- Molecular Epidemiology, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Cardiovascular Research Centre, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Tampere University Hospital, Tampere, Finland
- * E-mail:
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Snellman A, Ekblad LL, Koivumäki M, Lindgrén N, Tuisku J, Perälä M, Kallio L, Lehtonen R, Saunavaara V, Saunavaara J, Oikonen V, Aarnio R, Löyttyniemi E, Parkkola R, Karrasch M, Zetterberg H, Blennow K, Rinne JO. ASIC-E4: Interplay of Beta-Amyloid, Synaptic Density and Neuroinflammation in Cognitively Normal Volunteers With Three Levels of Genetic Risk for Late-Onset Alzheimer's Disease - Study Protocol and Baseline Characteristics. Front Neurol 2022; 13:826423. [PMID: 35222254 PMCID: PMC8863967 DOI: 10.3389/fneur.2022.826423] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 01/06/2022] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Detailed characterization of early pathophysiological changes in preclinical Alzheimer's disease (AD) is necessary to enable development of correctly targeted and timed disease-modifying treatments. ASIC-E4 study ("Beta-Amyloid, Synaptic loss, Inflammation and Cognition in healthy APOE ε4 carriers") combines state-of-the-art neuroimaging and fluid-based biomarker measurements to study the early interplay of three key pathological features of AD, i.e., beta-amyloid (Aβ) deposition, neuroinflammation and synaptic dysfunction and loss in cognitively normal volunteers with three different levels of genetic (APOE-related) risk for late-onset AD. OBJECTIVE Here, our objective is to describe the study design, used protocols and baseline demographics of the ASIC-E4 study. METHODS/DESIGN ASIC-E4 is a prospective observational multimodal imaging study performed in Turku PET Centre in collaboration with University of Gothenburg. Cognitively normal 60-75-year-old-individuals with known APOE ε4/ε4 genotype were recruited via local Auria Biobank (Turku, Finland). Recruitment of the project has been completed in July 2020 and 63 individuals were enrolled to three study groups (Group 1: APOE ε4/ε4, N = 19; Group 2: APOE ε4/ε3, N = 22; Group 3: APOE ε3/ε3, N = 22). At baseline, all participants will undergo positron emission tomography imaging with tracers targeted against Aβ deposition (11C-PIB), activated glia (11C-PK11195) and synaptic vesicle glycoprotein 2A (11C-UCB-J), two brain magnetic resonance imaging scans, and extensive cognitive testing. In addition, blood samples are collected for various laboratory measurements and blood biomarker analysis and cerebrospinal fluid samples are collected from a subset of participants based on additional voluntary informed consent. To evaluate the predictive value of the early neuroimaging findings, neuropsychological evaluation and blood biomarker measurements will be repeated after a 4-year follow-up period. DISCUSSION Results of the ASIC-E4 project will bridge the gap related to limited knowledge of the synaptic and inflammatory changes and their association with each other and Aβ in "at-risk" individuals. Thorough in vivo characterization of the biomarker profiles in this population will produce valuable information for diagnostic purposes and future drug development, where the field has already started to look beyond Aβ.
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Affiliation(s)
- Anniina Snellman
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
| | - Laura L. Ekblad
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Mikko Koivumäki
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Noora Lindgrén
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Jouni Tuisku
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Merja Perälä
- Auria Biobank, Turku University Hospital, University of Turku, Turku, Finland
| | - Lila Kallio
- Auria Biobank, Turku University Hospital, University of Turku, Turku, Finland
| | - Riina Lehtonen
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Virva Saunavaara
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
- Department of Medical Physics, Turku University Hospital, Turku, Finland
| | - Jani Saunavaara
- Department of Medical Physics, Turku University Hospital, Turku, Finland
| | - Vesa Oikonen
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | - Richard Aarnio
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
| | | | - Riitta Parkkola
- Department of Radiology, Turku University Hospital, University of Turku, Turku, Finland
| | - Mira Karrasch
- Department of Psychology, Åbo Akademi University, Turku, Finland
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, London, United Kingdom
- UK Dementia Research Institute at UCL, London, United Kingdom
- Hong Kong Center for Neurodegenerative Diseases, Hong Kong, China
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Juha O. Rinne
- Turku PET Centre, University of Turku and Turku University Hospital, Turku, Finland
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Lemmetyinen R, Karjalainen J, But A, Renkonen R, Pekkanen J, Haukka J, Toppila-Salmi S. Diseases with oral manifestations among adult asthmatics in Finland: a population-based matched cohort study. BMJ Open 2021; 11:e053133. [PMID: 34972766 PMCID: PMC8720978 DOI: 10.1136/bmjopen-2021-053133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVES Many comorbidities are associated with adult asthma and may exacerbate the asthma burden of disease. This study aims to investigate the risk for major oral diseases or oral-manifesting diseases in asthmatic compared with non-asthmatic adults. DESIGN We conducted a population-based matched cohort study with a 13.8-year follow-up. SETTING A baseline questionnaire was completed by participants in 1997 and follow-up data were extracted from the national hospital discharge registry of the National Institute for Health and Welfare in Finland from 1997 to 2014. PARTICIPANTS A total of 1394 adults with asthma were matched with 2398 adults without asthma based on sex, age and area of residence. Asthmatic adults were identified from the Drug Reimbursement Register of the Finnish Social Insurance Institution based on a special drug reimbursement right resulting from asthma. Participants without asthma were identified from the Population Register. MAIN OUTCOMES AND MEASURES Oral health-related primary diagnoses were retrieved using codes from the International Classification of Diseases, 10th edition and divided into groups of diseases. Cox's proportional hazards models stratified by matching unit and models matched and adjusted for pack-years, education level and body mass index (when possible) were used to evaluate the matched and further adjusted HRs for diseases comparing asthmatic and non-asthmatic cohorts. RESULTS Adult asthma was associated with a higher risk for any oral-manifesting disease (adjusted HR 1.41, 95% CI 1.11 to 1.80), herpes zoster (adjusted HR 6.18, 95% CI 1.21 to 31.6), benign tumours of the oral cavity and pharynx (matched HR 1.94, 95% CI 1.05 to 3.56) and dermatological diseases (pemphigus, pemphigoid, dermatitis herpetiformis, psoriasis and lichen planus, HR 1.67, 95% CI 1.01 to 2.78). CONCLUSIONS In this study, adult asthmatics experienced a higher risk for a major oral disease or oral-manifesting disease.
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Affiliation(s)
- Riikka Lemmetyinen
- Haartman Institute, University of Helsinki, Helsinki, Uusimaa, Finland
- Department of Public Health, University of Helsinki, Helsinki, Uusimaa, Finland
| | - Jussi Karjalainen
- Allergy Centre, Tampere University Hospital, Tampere, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Pirkanmaa, Finland
| | - Anna But
- Department of Public Health, University of Helsinki, Helsinki, Uusimaa, Finland
| | - Risto Renkonen
- Haartman Instutute, Helsingin yliopisto, Helsinki, Uusimaa, Finland
- HUSLAB, HUS, Helsinki, Uusimaa, Finland
| | - Juha Pekkanen
- Department of Public Health, University of Helsinki, Helsinki, Uusimaa, Finland
- National Institute for Health and Welfare, Helsinki, Finland
| | - Jari Haukka
- Department of Public Health, University of Helsinki, Helsinki, Uusimaa, Finland
| | - Sanna Toppila-Salmi
- Skin and Allergy Hospital, Helsinki, Uusimaa, Finland
- Medicum, Haartman Institute, University of Helsinki, Helsinki, Uusimaa, Finland
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Kaipainen AL, Pitkänen J, Haapalinna F, Jääskeläinen O, Jokinen H, Melkas S, Erkinjuntti T, Vanninen R, Koivisto AM, Lötjönen J, Koikkalainen J, Herukka SK, Julkunen V. A novel CT-based automated analysis method provides comparable results with MRI in measuring brain atrophy and white matter lesions. Neuroradiology 2021; 63:2035-2046. [PMID: 34389887 PMCID: PMC8589740 DOI: 10.1007/s00234-021-02761-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 06/30/2021] [Indexed: 11/26/2022]
Abstract
Purpose Automated analysis of neuroimaging data is commonly based on magnetic resonance imaging (MRI), but sometimes the availability is limited or a patient might have contradictions to MRI. Therefore, automated analyses of computed tomography (CT) images would be beneficial. Methods We developed an automated method to evaluate medial temporal lobe atrophy (MTA), global cortical atrophy (GCA), and the severity of white matter lesions (WMLs) from a CT scan and compared the results to those obtained from MRI in a cohort of 214 subjects gathered from Kuopio and Helsinki University Hospital registers from 2005 - 2016. Results The correlation coefficients of computational measures between CT and MRI were 0.9 (MTA), 0.82 (GCA), and 0.86 (Fazekas). CT-based measures were identical to MRI-based measures in 60% (MTA), 62% (GCA) and 60% (Fazekas) of cases when the measures were rounded to the nearest full grade variable. However, the difference in measures was 1 or less in 97–98% of cases. Similar results were obtained for cortical atrophy ratings, especially in the frontal and temporal lobes, when assessing the brain lobes separately. Bland–Altman plots and weighted kappa values demonstrated high agreement regarding measures based on CT and MRI. Conclusions MTA, GCA, and Fazekas grades can also be assessed reliably from a CT scan with our method. Even though the measures obtained with the different imaging modalities were not identical in a relatively extensive cohort, the differences were minor. This expands the possibility of using this automated analysis method when MRI is inaccessible or contraindicated. Supplementary Information The online version contains supplementary material available at 10.1007/s00234-021-02761-4.
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Affiliation(s)
- Aku L Kaipainen
- University of Eastern Finland, Institute of Clinical Medicine / Neurology, P.O. Box 1627, (Yliopistonranta 1 C), 70211, Kuopio, Finland.
- Neurosurgery of NeuroCenter, Kuopio University Hospital, P.O. Box 100, 70029 KYS, Kuopio, Finland.
| | - Johanna Pitkänen
- Department of Neurology, University of Helsinki and Helsinki University Hospital, P.O. Box 340, 00029 HUS, Helsinki, Finland
| | - Fanni Haapalinna
- University of Eastern Finland, Institute of Clinical Medicine / Neurology, P.O. Box 1627, (Yliopistonranta 1 C), 70211, Kuopio, Finland
| | - Olli Jääskeläinen
- University of Eastern Finland, Institute of Clinical Medicine / Neurology, P.O. Box 1627, (Yliopistonranta 1 C), 70211, Kuopio, Finland
| | - Hanna Jokinen
- Division of Neuropsychology, HUS Neurocenter, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Susanna Melkas
- Department of Neurology, University of Helsinki and Helsinki University Hospital, P.O. Box 340, 00029 HUS, Helsinki, Finland
| | - Timo Erkinjuntti
- Department of Neurology, University of Helsinki and Helsinki University Hospital, P.O. Box 340, 00029 HUS, Helsinki, Finland
| | - Ritva Vanninen
- Department of Radiology, Kuopio University Hospital, P.O. Box 1777, 70211, Kuopio, Finland
- University of Eastern Finland, Institute of Clinical Medicine / Radiology, P.O. Box 1627, (Yliopistonranta 1 C), 70211, Kuopio, Finland
| | - Anne M Koivisto
- University of Eastern Finland, Institute of Clinical Medicine / Neurology, P.O. Box 1627, (Yliopistonranta 1 C), 70211, Kuopio, Finland
- Department of Neurology, Kuopio University Hospital, P.O. Box 1777, 70211, Kuopio, Finland
- Department of Neurosciences, Department of Geriatrics / Rehabilitation and Internal Medicine, University of Helsinki, Helsinki University Hospital, P.O. Box 340, 00029 HUS, Helsinki, Finland
| | - Jyrki Lötjönen
- Combinostics Oy, Hatanpään valtatie 24, 33100, Tampere, Finland
| | | | - Sanna-Kaisa Herukka
- University of Eastern Finland, Institute of Clinical Medicine / Neurology, P.O. Box 1627, (Yliopistonranta 1 C), 70211, Kuopio, Finland
- Department of Neurology, Kuopio University Hospital, P.O. Box 1777, 70211, Kuopio, Finland
| | - Valtteri Julkunen
- University of Eastern Finland, Institute of Clinical Medicine / Neurology, P.O. Box 1627, (Yliopistonranta 1 C), 70211, Kuopio, Finland
- Department of Neurology, Kuopio University Hospital, P.O. Box 1777, 70211, Kuopio, Finland
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Mishra BH, Mishra PP, Raitoharju E, Marttila S, Mononen N, Sievänen H, Viikari J, Juonala M, Laaksonen M, Hutri-Kähönen N, Kähönen M, Raitakari OT, Lehtimäki T. Modular genome-wide gene expression architecture shared by early traits of osteoporosis and atherosclerosis in the Young Finns Study. Sci Rep 2021; 11:7111. [PMID: 33782480 PMCID: PMC8007808 DOI: 10.1038/s41598-021-86536-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/12/2021] [Indexed: 02/07/2023] Open
Abstract
We analysed whole blood genome-wide expression data to identify gene co-expression modules shared by early traits of osteoporosis and atherosclerosis. Gene expression was profiled for the Young Finns Study participants. Bone mineral density and content were measured as early traits of osteoporosis. Carotid and bulbus intima media thickness were measured as early traits of atherosclerosis. Joint association of the modules, identified with weighted co-expression analysis, with early traits of the diseases was tested with multivariate analysis. Among the six modules significantly correlated with early traits of both the diseases, two had significant (adjusted p-values (p.adj) < 0.05) and another two had suggestively significant (p.adj < 0.25) joint association with the two diseases after adjusting for age, sex, body mass index, smoking habit, alcohol consumption, and physical activity. The three most significant member genes from the significant modules were NOSIP, GXYLT2, and TRIM63 (p.adj ≤ 0.18). Genes in the modules were enriched with biological processes that have separately been found to be involved in either bone metabolism or atherosclerosis. The gene modules and their most significant member genes identified in this study support the osteoporosis-atherosclerosis comorbidity hypothesis and can provide new joint biomarkers for both diseases and their dual prevention.
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Affiliation(s)
- Binisha H Mishra
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
- Finnish Cardiovascular Research Center Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland.
| | - Pashupati P Mishra
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Cardiovascular Research Center Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland
| | - Emma Raitoharju
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Cardiovascular Research Center Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland
| | - Saara Marttila
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Cardiovascular Research Center Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland
- Gerontology Research Center (GEREC), Tampere University, Tampere, Finland
| | - Nina Mononen
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Cardiovascular Research Center Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland
| | - Harri Sievänen
- The UKK Institute for Health Promotion Research, Tampere, Finland
| | - Jorma Viikari
- Department of Medicine, University of Turku, Turku, Finland
- Division of Medicine, Turku University Hospital, Turku, Finland
| | - Markus Juonala
- Department of Medicine, University of Turku, Turku, Finland
- Division of Medicine, Turku University Hospital, Turku, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
| | | | - Nina Hutri-Kähönen
- Department of Paediatrics, Tampere University Hospital, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Mika Kähönen
- Finnish Cardiovascular Research Center Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Physiology, Tampere University Hospital, Tampere, Finland
| | - Olli T Raitakari
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
- Department of Clinical Physiology and Nuclear Medicine, Turku University Hospital, Turku, Finland
- Centre for Population Health Research, University of Turku and Turku University Hospital, Turku, Finland
| | - Terho Lehtimäki
- Department of Clinical Chemistry, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Finnish Cardiovascular Research Center Tampere, Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland
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Rajantie H, Kaukola L, Snäll J, Roine R, Sintonen H, Thorén H. Health-related quality of life in patients surgically treated for orbital blow-out fracture: a prospective study. Oral Maxillofac Surg 2020; 25:373-382. [PMID: 33280065 PMCID: PMC8352817 DOI: 10.1007/s10006-020-00923-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 11/03/2020] [Indexed: 11/30/2022]
Abstract
Purpose The purpose of this study was to evaluate patients’ health-related quality of life (HRQoL) before and after surgical treatment of orbital blow-out fracture. Methods This prospective study comprises of all adult patients undergoing a surgical reconstruction of an orbital blow-out fracture in 2006–2010. Their HRQoL was evaluated for 6 months postoperatively with the aid of the standardized 15D instrument and was compared with that of an age- and gender-standardized sample of the general Finnish population. A complementary questionnaire for more detailed information was also administered. Results Twenty-six patients completed the study. Mean 15D score among the patients preoperatively (0.898) was statistically significantly and clinically importantly worse than the score of the control population (0.936). Six months postoperatively, the mean 15D score was 0.920, with no significant difference compared with the control population and the significant differences on the different dimensions had disappeared. The most common complaint at 6 months postoperatively was diplopia in daily life (19%). Disturbances in facial sensation (27%) and defects in facial appearance (15%) were the most unpleasant subjective outcomes. Conclusion The HRQoL is significantly decreased after orbital blow-out fracture compared with the general population but will recover completely in 6 months. Thus, the negative impact of orbital blow-out fracture on HRQoL is only transient. Disturbances in facial sensation, defects in facial appearance, and diplopia are the most common subjective complaints after the injury and its surgical treatment. However, these do not appear to affect the overall quality of life in the long term. Supplementary Information The online version contains supplementary material available at 10.1007/s10006-020-00923-x.
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Affiliation(s)
- Hanna Rajantie
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
| | - Leena Kaukola
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Johanna Snäll
- Department of Oral and Maxillofacial Diseases, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Risto Roine
- Department of Health and Social Management, University of Eastern Finland, Kuopio, Finland
- Helsinki and Uusimaa Hospital District, Administration, Helsinki, Finland
| | - Harri Sintonen
- Department of Public Health, University of Helsinki, Helsinki, Finland
| | - Hanna Thorén
- Department of Oral and Maxillofacial Surgery, University of Turku, Turku, Finland
- Department of Oral and Maxillofacial Diseases, Turku University Hospital, Turku, Finland
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Silvoniemi A, Mikola E, Ivaska L, Jeskanen M, Löyttyniemi E, Puhakka T, Vuorinen T, Jartti T. Intratonsillar detection of 27 distinct viruses: A cross-sectional study. J Med Virol 2020; 92:3830-3838. [PMID: 32603480 PMCID: PMC7689766 DOI: 10.1002/jmv.26245] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 06/26/2020] [Indexed: 12/11/2022]
Abstract
Palatine tonsils have been observed to harbor several distinct respiratory and herpesviruses in separate studies. In this study, the presence of these viruses in palatine tonsils was comprehensively studied in both children and adults. A cross-sectional analysis of 181 patients (median age 22 years; range, 2.6-66) operated for a benign tonsillar disease was conducted. Real-time polymerase chain reaction was performed to detect 27 distinct viruses in all: eight human herpesviruses, 16 respiratory viruses, parvo B19, and polyoma BK/JC viruses. Clinical characteristics of the patients and underlying conditions were evaluated. In total, 92% of patients had virus detected in tonsils (Epstein-Barr virus 72%, human herpesvirus 7, and 6B 54% and 16%, respectively, enterovirus 18%, parvovirus B19 7% and the rest <4%). No herpes simplex virus 2, varicella zoster virus, polyoma JC virus, parainfluenza-, metapneumo-, or coronaviruses were found. Enterovirus was more common in children and was frequently observed in the presence of HHV6B. None of the viruses showed a positive association to the tonsillar disease. Respiratory symptoms were not associated with the prevalence of viruses. This study comprehensively reports a cross-sectional view of intratonsillar virus infections in elective tonsillectomy patients in a wide age range cohort. Tonsils are a major virus reservoir for distinct herpes and respiratory viruses without a positive association with tonsillar disease or respiratory symptoms.
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Affiliation(s)
- Antti Silvoniemi
- Department of Otorhinolaryngology – Head and Neck SurgeryTurku University Hospital and University of TurkuTurkuFinland
| | - Emilia Mikola
- Department of Otorhinolaryngology – Head and Neck SurgeryTurku University Hospital and University of TurkuTurkuFinland
| | - Lotta Ivaska
- Department of Otorhinolaryngology – Head and Neck SurgeryTurku University Hospital and University of TurkuTurkuFinland
| | - Marja Jeskanen
- Department of Clinical Microbiology, Turku University Hospital and Institute of BiomedicineUniversity of TurkuTurkuFinland
| | | | - Tuomo Puhakka
- Department of Otorhinolaryngology – Head and Neck SurgeryTurku University Hospital and University of TurkuTurkuFinland
| | - Tytti Vuorinen
- Department of Clinical Microbiology, Turku University Hospital and Institute of BiomedicineUniversity of TurkuTurkuFinland
| | - Tuomas Jartti
- Department of Pediatrics and Adolescent MedicineTurku University Hospital and University of TurkuTurkuFinland
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Kari OK, Tavakoli S, Parkkila P, Baan S, Savolainen R, Ruoslahti T, Johansson NG, Ndika J, Alenius H, Viitala T, Urtti A, Lajunen T. Light-Activated Liposomes Coated with Hyaluronic Acid as a Potential Drug Delivery System. Pharmaceutics 2020; 12:E763. [PMID: 32806740 PMCID: PMC7465487 DOI: 10.3390/pharmaceutics12080763] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 08/05/2020] [Accepted: 08/09/2020] [Indexed: 01/22/2023] Open
Abstract
Light-activated liposomes permit site and time-specific drug delivery to ocular and systemic targets. We combined a light activation technology based on indocyanine green with a hyaluronic acid (HA) coating by synthesizing HA-lipid conjugates. HA is an endogenous vitreal polysaccharide and a potential targeting moiety to cluster of differentiation 44 (CD44)-expressing cells. Light-activated drug release from 100 nm HA-coated liposomes was functional in buffer, plasma, and vitreous samples. The HA-coating improved stability in plasma compared to polyethylene glycol (PEG)-coated liposomes. Liposomal protein coronas on HA- and PEG-coated liposomes after dynamic exposure to undiluted human plasma and porcine vitreous samples were hydrophilic and negatively charged, thicker in plasma (~5 nm hard, ~10 nm soft coronas) than in vitreous (~2 nm hard, ~3 nm soft coronas) samples. Their compositions were dependent on liposome formulation and surface charge in plasma but not in vitreous samples. Compared to the PEG coating, the HA-coated liposomes bound more proteins in vitreous samples and enriched proteins related to collagen interactions, possibly explaining their slightly reduced vitreal mobility. The properties of the most abundant proteins did not correlate with liposome size or charge, but included proteins with surfactant and immune system functions in plasma and vitreous samples. The HA-coated light-activated liposomes are a functional and promising alternative for intravenous and ocular drug delivery.
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Affiliation(s)
- Otto K. Kari
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
| | - Shirin Tavakoli
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
| | - Petteri Parkkila
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
| | - Simone Baan
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
- Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, P.O. Box 80.082, 3508 TB Utrecht, The Netherlands
| | - Roosa Savolainen
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
| | - Teemu Ruoslahti
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
| | - Niklas G. Johansson
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland;
| | - Joseph Ndika
- Human Microbiome Research, Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, FI-00290 Helsinki, Finland; (J.N.); (H.A.)
| | - Harri Alenius
- Human Microbiome Research, Faculty of Medicine, University of Helsinki, Haartmaninkatu 3, FI-00290 Helsinki, Finland; (J.N.); (H.A.)
- Institute of Environmental Medicine, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Tapani Viitala
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland;
| | - Arto Urtti
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
- School of Pharmacy, Faculty of Health Sciences, University of Eastern Finland, Yliopistonranta 1, 70210 Kuopio, Finland
- Institute of Chemistry, St. Petersburg State University, Petergof, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Tatu Lajunen
- Drug Research Program, Division of Pharmaceutical Biosciences, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, FI-00790 Helsinki, Finland; (O.K.K.); (S.T.); (P.P.); (S.B.); (R.S.); (T.R.); (T.V.); (A.U.)
- Laboratory of Pharmaceutical Technology, Department of Pharmaceutical Science, Tokyo University of Pharmacy & Life Sciences, 1432-1 Hachioji, Tokyo 192-0392, Japan
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Honkala SM, Motiani P, Kivelä R, Hemanthakumar KA, Tolvanen E, Motiani KK, Eskelinen JJ, Virtanen KA, Kemppainen J, Heiskanen MA, Löyttyniemi E, Nuutila P, Kalliokoski KK, Hannukainen JC. Exercise training improves adipose tissue metabolism and vasculature regardless of baseline glucose tolerance and sex. BMJ Open Diabetes Res Care 2020; 8:8/1/e000830. [PMID: 32816872 PMCID: PMC7437884 DOI: 10.1136/bmjdrc-2019-000830] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 05/08/2020] [Accepted: 06/10/2020] [Indexed: 12/13/2022] Open
Abstract
INTRODUCTION We investigated the effects of a supervised progressive sprint interval training (SIT) and moderate-intensity continuous training (MICT) on adipocyte morphology and adipose tissue metabolism and function; we also tested whether the responses were similar regardless of baseline glucose tolerance and sex. RESEARCH DESIGN AND METHODS 26 insulin-resistant (IR) and 28 healthy participants were randomized into 2-week-long SIT (4-6×30 s at maximum effort) and MICT (40-60 min at 60% of maximal aerobic capacity (VO2peak)). Insulin-stimulated glucose uptake and fasting-free fatty acid uptake in visceral adipose tissue (VAT), abdominal and femoral subcutaneous adipose tissues (SATs) were quantified with positron emission tomography. Abdominal SAT biopsies were collected to determine adipocyte morphology, gene expression markers of lipolysis, glucose and lipid metabolism and inflammation. RESULTS Training increased glucose uptake in VAT (p<0.001) and femoral SAT (p<0.001) and decreased fatty acid uptake in VAT (p=0.01) irrespective of baseline glucose tolerance and sex. In IR participants, training increased adipose tissue vasculature and decreased CD36 and ANGPTL4 gene expression in abdominal SAT. SIT was superior in increasing VO2peak and VAT glucose uptake in the IR group, whereas MICT reduced VAT fatty acid uptake more than SIT. CONCLUSIONS Short-term training improves adipose tissue metabolism both in healthy and IR participants independently of the sex. Adipose tissue angiogenesis and gene expression was only significantly affected in IR participants.
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Affiliation(s)
| | | | - Riikka Kivelä
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | - Erik Tolvanen
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | | | | | | | | | | | - Pirjo Nuutila
- Turku PET Centre, University of Turku, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
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Jian C, Luukkonen P, Yki-Järvinen H, Salonen A, Korpela K. Quantitative PCR provides a simple and accessible method for quantitative microbiota profiling. PLoS One 2020; 15:e0227285. [PMID: 31940382 PMCID: PMC6961887 DOI: 10.1371/journal.pone.0227285] [Citation(s) in RCA: 146] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/16/2019] [Indexed: 12/12/2022] Open
Abstract
The use of relative abundance data from next generation sequencing (NGS) can lead to misinterpretations of microbial community structures, as the increase of one taxon leads to the concurrent decrease of the other(s) in compositional data. Although different DNA- and cell-based methods as well as statistical approaches have been developed to overcome the compositionality problem, and the biological relevance of absolute bacterial abundances has been demonstrated, the human microbiome research has not yet adopted these methods, likely due to feasibility issues. Here, we describe how quantitative PCR (qPCR) done in parallel to NGS library preparation provides an accurate estimation of absolute taxon abundances from NGS data and hence provides an attainable solution to compositionality in high-throughput microbiome analyses. The advantages and potential challenges of the method are also discussed.
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Affiliation(s)
- Ching Jian
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Panu Luukkonen
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
- Department of Medicine, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Hannele Yki-Järvinen
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
- Department of Medicine, University of Helsinki and Helsinki University Central Hospital, Helsinki, Finland
| | - Anne Salonen
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Katri Korpela
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- * E-mail:
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Niemelä E, Desai D, Lundsten E, Rosenholm JM, Kankaanpää P, Eriksson JE. Quantitative bioimage analytics enables measurement of targeted cellular stress response induced by celastrol-loaded nanoparticles. Cell Stress Chaperones 2019; 24:735-748. [PMID: 31079284 PMCID: PMC6629742 DOI: 10.1007/s12192-019-00999-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 04/12/2019] [Accepted: 04/17/2019] [Indexed: 10/26/2022] Open
Abstract
The cellular stress response, which provides protection against proteotoxic stresses, is characterized by the activation of heat shock factor 1 and the formation of nuclear stress bodies (nSBs). In this study, we developed a computerized method to quantify the formation and size distribution of nSBs, as stress response induction is of interest in cancer research, neurodegenerative diseases, and in other pathophysiological processes. We employed an advanced bioimaging and analytics workflow to enable quantitative detailed subcellular analysis of cell populations even down to single-cell level. This type of detailed analysis requires automated single cell analysis to allow for detection of both size and distribution of nSBs. For specific induction of nSB we used mesoporous silica nanoparticles (MSNs) loaded with celastrol, a plant-derived triterpene with the ability to activate the stress response. To enable specific targeting, we employed folic acid functionalized nanoparticles, which yields targeting to folate receptor expressing cancer cells. In this way, we could assess the ability to quantitatively detect directed and spatio-temporal nSB induction using 2D and 3D confocal imaging. Our results demonstrate successful implementation of an imaging and analytics workflow based on a freely available, general-purpose software platform, BioImageXD, also compatible with other imaging modalities due to full 3D/4D and high-throughput batch processing support. The developed quantitative imaging analytics workflow opens possibilities for detailed stress response examination in cell populations, with significant potential in the analysis of targeted drug delivery systems related to cell stress and other cytoprotective cellular processes.
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Affiliation(s)
- Erik Niemelä
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
| | - Diti Desai
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Emine Lundsten
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Jessica M. Rosenholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - Pasi Kankaanpää
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
| | - John E. Eriksson
- Cell Biology, Faculty of Science and Engineering, Åbo Akademi University, Turku, Finland
- Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland
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Abstract
PURPOSE HELMi (Health and Early Life Microbiota) is a longitudinal, prospective general population birth cohort, set up to identify environmental, lifestyle and genetic factors that modify the intestinal microbiota development in the first years of life and their relation to child health and well-being. PARTICIPANTS The HELMi cohort consists of 1055 healthy term infants born in 2016-2018 mainly at the capital region of Finland and their parents. The intestinal microbiota development of the infants is characterised based on nine, strategically selected, faecal samples and connected to extensive online questionnaire-collected metadata at weekly to monthly intervals focusing on the diet, other exposures and family's lifestyle as well as the health and growth of the child. Motor and cognitive developmental screening takes place at 18 months. Infant's DNA sample, mother's breast milk sample and both parent's spot faecal samples have been collected. FINDINGS TO DATE The mean age of the mothers was 32.8 (SD 4.1) and fathers/coparents 34.8 (5.3) years at the time of enrolment. Seventeen percentage (n=180) of the infants were born by caesarean section. Just under half (49%) were firstborns; 50.7% were males. At 3 months of age, 86% of the babies were exclusively breastfed and 2% exclusively formula-fed. FUTURE PLANS The current follow-up from pregnancy to first 24 months will be completed in March 2020, totalling to over 10 000 biological samples and over 50 000 questionnaire entries. The results are expected to identify environmental and host factors that affect early gut microbiota development and health, and hence give indications of how to prevent or reverse microbiota perturbations in infancy. This prospective cohort will be followed up further to identify how the early microbiota relates to later health outcomes, especially weight gain, infections and allergic and other chronic diseases. TRIAL REGISTRATION NUMBER NCT03996304; Pre-results.
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Affiliation(s)
- Katri Korpela
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Evgenia Dikareva
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | - Kaija-Leena Kolho
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Children’s Hospital, University of Helsinki, Helsinki, Finland
- Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland
| | - Willem M de Vos
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Laboratory of Microbiology, Wageningen University, Wageningen, The Netherlands
| | - Anne Salonen
- Human Microbiome Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
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Draper LA, Ryan FJ, Smith MK, Jalanka J, Mattila E, Arkkila PA, Ross RP, Satokari R, Hill C. Long-term colonisation with donor bacteriophages following successful faecal microbial transplantation. Microbiome 2018; 6:220. [PMID: 30526683 PMCID: PMC6288847 DOI: 10.1186/s40168-018-0598-x] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 11/18/2018] [Indexed: 05/07/2023]
Abstract
BACKGROUND Faecal microbiota transplantation (FMT) is used in the treatment of recurrent Clostridium difficile infection. Its success is typically attributed to the restoration of a diverse microbiota. Viruses (including bacteriophages) are the most numerically dominant and potentially the most diverse members of the microbiota, but their fate following FMT has not been well studied. RESULTS We studied viral transfer following FMT from 3 donors to 14 patients. Recipient viromes resembled those of their donors for up to 12 months. Tracking individual bacteriophage colonisation revealed that engraftment of individual bacteriophages was dependent on specific donor-recipient pairings. Specifically, multiple recipients from a single donor displayed highly individualised virus colonisation patterns. CONCLUSIONS The impact of viruses on long-term microbial dynamics is a factor that should be reviewed when considering FMT as a therapeutic option.
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Affiliation(s)
- L A Draper
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - F J Ryan
- APC Microbiome Institute, University College Cork, Cork, Ireland
- Present Address: South Australian Health and Medical Research Institute, North Terrace, Adelaide, 5000, Australia
| | - M K Smith
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - J Jalanka
- Immunobiology Research Program and Department of Bacteriology and Immunology, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - E Mattila
- Departments of Gastroenterology and Infectious Diseases, Helsinki University Hospital, Helsinki, Finland
| | - P A Arkkila
- Departments of Gastroenterology and Infectious Diseases, Helsinki University Hospital, Helsinki, Finland
| | - R P Ross
- APC Microbiome Institute, University College Cork, Cork, Ireland
| | - R Satokari
- Immunobiology Research Program and Department of Bacteriology and Immunology, Faculty of Medicine, University of Helsinki, Helsinki, Finland.
| | - C Hill
- APC Microbiome Institute, University College Cork, Cork, Ireland.
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Lahesmaa M, Oikonen V, Helin S, Luoto P, U Din M, Pfeifer A, Nuutila P, Virtanen KA. Regulation of human brown adipose tissue by adenosine and A 2A receptors - studies with [ 15O]H 2O and [ 11C]TMSX PET/CT. Eur J Nucl Med Mol Imaging 2018; 46:743-750. [PMID: 30105585 PMCID: PMC6351510 DOI: 10.1007/s00259-018-4120-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2018] [Accepted: 08/01/2018] [Indexed: 12/16/2022]
Abstract
PURPOSE Brown adipose tissue (BAT) has emerged as a potential target to combat obesity and diabetes, but novel strategies to activate BAT are needed. Adenosine and A2A receptor (A2AR) agonism activate BAT in rodents, and endogenous adenosine is released locally in BAT as a by-product of noradrenaline, but physiological data from humans is lacking. The purpose of this pilot study was to investigate the effects of exogenous adenosine on human BAT perfusion, and to determine the density of A2ARs in human BAT in vivo for the first time, using PET/CT imaging. METHODS Healthy, lean men (n = 10) participated in PET/CT imaging with two radioligands. Perfusion of BAT, white adipose tissue (WAT) and muscle was quantified with [15O]H2O at baseline, during cold exposure and during intravenous administration of adenosine. A2AR density of the tissues was quantified with [11C]TMSX at baseline and during cold exposure. RESULTS Adenosine increased the perfusion of BAT even more than cold exposure (baseline 8.3 ± 4.5, cold 19.6 ± 9.3, adenosine 28.6 ± 7.9 ml/100 g/min, p < 0.01). Distribution volume of [11C]TMSX in BAT was significantly lower during cold exposure compared to baseline. In cold, low [11C]TMSX binding coincided with high concentrations of noradrenaline. CONCLUSIONS Adenosine administration caused a maximal perfusion effect in human supraclavicular BAT, indicating increased oxidative metabolism. Cold exposure increased noradrenaline concentrations and decreased the density of A2AR available for radioligand binding in BAT, suggesting augmented release of endogenous adenosine. Our results show that adenosine and A2AR are relevant for activation of human BAT, and A2AR provides a future target for enhancing BAT metabolism.
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Affiliation(s)
- Minna Lahesmaa
- Turku PET Centre, University of Turku, P.O. Box 52, FI-20520, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Vesa Oikonen
- Turku PET Centre, University of Turku, P.O. Box 52, FI-20520, Turku, Finland
| | - Semi Helin
- Turku PET Centre, University of Turku, P.O. Box 52, FI-20520, Turku, Finland
| | - Pauliina Luoto
- Turku PET Centre, University of Turku, P.O. Box 52, FI-20520, Turku, Finland
| | - Mueez U Din
- Turku PET Centre, University of Turku, P.O. Box 52, FI-20520, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Alexander Pfeifer
- Institute of Pharmacology and Toxicology, University of Bonn, Bonn, Germany
| | - Pirjo Nuutila
- Turku PET Centre, University of Turku, P.O. Box 52, FI-20520, Turku, Finland
- Department of Endocrinology, Turku University Hospital, Turku, Finland
| | - Kirsi A Virtanen
- Turku PET Centre, University of Turku, P.O. Box 52, FI-20520, Turku, Finland.
- Turku PET Centre, Turku University Hospital, Turku, Finland.
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Kuuliala K, Kuuliala A, Koivuniemi R, Kautiainen H, Repo H, Leirisalo-Repo M. STAT6 and STAT1 Pathway Activation in Circulating Lymphocytes and Monocytes as Predictor of Treatment Response in Rheumatoid Arthritis. PLoS One 2016; 11:e0167975. [PMID: 27942004 PMCID: PMC5152841 DOI: 10.1371/journal.pone.0167975] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 10/27/2016] [Indexed: 12/29/2022] Open
Abstract
Objective To find novel predictors of treatment response to disease-modifying antirheumatic drugs (DMARDs), we studied activation of STAT (signal transducers and activators of transcription) 6 and 1 in circulating leukocytes of patients with rheumatoid arthritis (RA). Methods 19 patients with untreated recent-onset RA, 16 patients with chronic RA irresponsive to synthetic DMARDs and 37 healthy volunteers provided blood samples for whole blood flow cytometric determination of intracellular STAT6 and STAT1 phosphorylation, expressed as relative fluorescence units, in response to IL-4 and IFN-γ, respectively. Phosphorylation was restudied and treatment response (according to European League Against Rheumatism) determined after 1-year treatment with synthetic DMARDs in recent-onset RA and with biological DMARD in synthetic DMARD-irresponsive RA. Estimation-based exact logistic regression was used to investigate relation of baseline variables to treatment response. 95% confidence intervals of means were estimated by bias-corrected bootstrapping and the significance between baseline and follow-up values was calculated by permutation test. Results At baseline, levels of phosphorylated STAT6 (pSTAT6) induced by IL-4 in monocytes were higher in those who achieved good treatment response to synthetic DMARDs than in those who did not among patients with untreated RA (OR 2.74, 95% CI 1.05 to 9.47), and IFN-γ -stimulated lymphocyte pSTAT1 levels were higher in those who achieved good treatment response to a biological drug than in those who did not among patients with chronic RA (OR 3.91, 95% CI 1.12 to 20.68). During follow-up, in recent-onset RA patients with good treatment response to synthetic DMARDS, the lymphocyte pSTAT6 levels decreased (p = 0.011), and, consequently, the ratio of pSTAT1/pSTAT6 in lymphocytes increased (p = 0.042). Conclusion Cytokine-stimulated STAT6 and STAT1 phosphorylation in circulating leukocytes was associated with treatment response to DMARDs in this pilot study. The result, if confirmed in larger studies, may aid in developing personalized medicine in RA.
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Affiliation(s)
- Krista Kuuliala
- Bacteriology and immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- * E-mail:
| | - Antti Kuuliala
- Bacteriology and immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Riitta Koivuniemi
- Rheumatology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
| | - Hannu Kautiainen
- Primary Health Care, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- General Practice, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
- Unit of Primary Health Care, Kuopio University Hospital, Kuopio, Finland
| | - Heikki Repo
- Bacteriology and immunology, Helsinki University Hospital and University of Helsinki, Helsinki, Finland
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Abstract
A modern biomedical research project can easily contain hundreds of analysis steps and lack of reproducibility of the analyses has been recognized as a severe issue. While thorough documentation enables reproducibility, the number of analysis programs used can be so large that in reality reproducibility cannot be easily achieved. Literate programming is an approach to present computer programs to human readers. The code is rearranged to follow the logic of the program, and to explain that logic in a natural language. The code executed by the computer is extracted from the literate source code. As such, literate programming is an ideal formalism for systematizing analysis steps in biomedical research. We have developed the reproducible computing tool Lir (literate, reproducible computing) that allows a tool-agnostic approach to biomedical data analysis. We demonstrate the utility of Lir by applying it to a case study. Our aim was to investigate the role of endosomal trafficking regulators to the progression of breast cancer. In this analysis, a variety of tools were combined to interpret the available data: a relational database, standard command-line tools, and a statistical computing environment. The analysis revealed that the lipid transport related genes LAPTM4B and NDRG1 are coamplified in breast cancer patients, and identified genes potentially cooperating with LAPTM4B in breast cancer progression. Our case study demonstrates that with Lir, an array of tools can be combined in the same data analysis to improve efficiency, reproducibility, and ease of understanding. Lir is an open-source software available at github.com/borisvassilev/lir.
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Affiliation(s)
- Boris Vassilev
- Department of Anatomy, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- * E-mail:
| | - Riku Louhimo
- Research Programs Unit, Genome-Scale Biology, University of Helsinki, Helsinki, Finland
| | - Elina Ikonen
- Department of Anatomy, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- Minerva Foundation Institute for Medical Research, Helsinki, Finland
| | - Sampsa Hautaniemi
- Research Programs Unit, Genome-Scale Biology, University of Helsinki, Helsinki, Finland
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