J Frederik Frøen

Summary

Affiliation: University of Oslo
Country: Norway

Publications

  1. ncbi request reprint Adverse effects of nicotine and interleukin-1beta on autoresuscitation after apnea in piglets: implications for sudden infant death syndrome
    J F Frøen
    Department of Pediatric Research, Institute of Surgical Research, The National Hospital, University of Oslo
    Pediatrics 105:E52. 2000
  2. ncbi request reprint Restricted fetal growth in sudden intrauterine unexplained death
    J Frederik Frøen
    Department of Obstetrics and Gynecology, Rikshospitalet University Clinic, University of Oslo, Oslo, Norway
    Acta Obstet Gynecol Scand 83:801-7. 2004
  3. ncbi request reprint A kick from within--fetal movement counting and the cancelled progress in antenatal care
    J Frederik Frøen
    Department of Obstetrics and Gynecology, Rikshospitalet University Clinic, University of Oslo, Norway
    J Perinat Med 32:13-24. 2004
  4. ncbi request reprint Maternal health in sudden intrauterine unexplained death: do urinary tract infections protect the fetus?
    J Frederik Frøen
    Department of Obstetrics and Gynecology, Rikshospitalet University Clinic, University of Oslo, Oslo, Norway
    Obstet Gynecol 100:909-15. 2002
  5. ncbi request reprint Detrimental effects of nicotine and endotoxin in the newborn piglet brain during severe hypoxemia
    J Frederik Frøen
    Department of Pediatric Research, The National Hospital, University of Oslo, Norway
    Biol Neonate 82:188-96. 2002
  6. pmc Comparative epidemiology of sudden infant death syndrome and sudden intrauterine unexplained death
    J F Frøen
    Department of Pediatric Research, The National Hospital, University of Oslo, N 0027 Oslo, Norway
    Arch Dis Child Fetal Neonatal Ed 87:F118-21. 2002
  7. ncbi request reprint Interleukin-10 reverses acute detrimental effects of endotoxin-induced inflammation on perinatal cerebral hypoxia-ischemia
    J Frederik Frøen
    Department of Pediatric Research, The National Hospital, University of Oslo, N 0027 Oslo, Norway
    Brain Res 942:87-94. 2002
  8. ncbi request reprint Prolonged apneas and hypoxia mediated by nicotine and endotoxin in piglets
    J Frederik Frøen
    Department of Pediatric Research, The National Hospital, University of Oslo, Norway
    Biol Neonate 81:119-25. 2002
  9. ncbi request reprint [Finding the cause of death in intrauterine death--which examination should be done?]
    J F Frøen
    Kvinneklinikken og Pediatrisk forskningsinstitutt, Rikshospitalet 0027 Oslo
    Tidsskr Nor Laegeforen 121:326-30. 2001
  10. ncbi request reprint Effect of interleukin-10 on newborn piglet brain following hypoxia-ischemia and endotoxin-induced inflammation
    Kristin Lyng
    Department of Pediatric Research, University of Oslo, Oslo, Norway
    Biol Neonate 87:207-16. 2005

Detail Information

Publications24

  1. ncbi request reprint Adverse effects of nicotine and interleukin-1beta on autoresuscitation after apnea in piglets: implications for sudden infant death syndrome
    J F Frøen
    Department of Pediatric Research, Institute of Surgical Research, The National Hospital, University of Oslo
    Pediatrics 105:E52. 2000
    ..This is performed by investigating the acute effects of nicotine and IL-1beta on apnea by laryngeal reflex stimulation and on the subsequent autoresuscitation...
  2. ncbi request reprint Restricted fetal growth in sudden intrauterine unexplained death
    J Frederik Frøen
    Department of Obstetrics and Gynecology, Rikshospitalet University Clinic, University of Oslo, Oslo, Norway
    Acta Obstet Gynecol Scand 83:801-7. 2004
    ....
  3. ncbi request reprint A kick from within--fetal movement counting and the cancelled progress in antenatal care
    J Frederik Frøen
    Department of Obstetrics and Gynecology, Rikshospitalet University Clinic, University of Oslo, Norway
    J Perinat Med 32:13-24. 2004
    ..While screening for fetal well-being by maternal fetal movement counting can reduce fetal mortality rates, a resurrection in research activity is urgently needed to optimize its benefits...
  4. ncbi request reprint Maternal health in sudden intrauterine unexplained death: do urinary tract infections protect the fetus?
    J Frederik Frøen
    Department of Obstetrics and Gynecology, Rikshospitalet University Clinic, University of Oslo, Oslo, Norway
    Obstet Gynecol 100:909-15. 2002
    ..To study the impact of maternal health and obstetric complications on the risk for sudden intrauterine unexplained death...
  5. ncbi request reprint Detrimental effects of nicotine and endotoxin in the newborn piglet brain during severe hypoxemia
    J Frederik Frøen
    Department of Pediatric Research, The National Hospital, University of Oslo, Norway
    Biol Neonate 82:188-96. 2002
    ..02). These findings contribute in explaining how nicotine and inflammatory response to bacterial toxins could act as cofactors for hypoxic-ischemic neurologic injury in the immature brain...
  6. pmc Comparative epidemiology of sudden infant death syndrome and sudden intrauterine unexplained death
    J F Frøen
    Department of Pediatric Research, The National Hospital, University of Oslo, N 0027 Oslo, Norway
    Arch Dis Child Fetal Neonatal Ed 87:F118-21. 2002
    ..A relation between them has been suggested. As an equivalent of SIDS, only cases validated by post mortem examination are diagnosed as sudden intrauterine unexplained death (SIUD)...
  7. ncbi request reprint Interleukin-10 reverses acute detrimental effects of endotoxin-induced inflammation on perinatal cerebral hypoxia-ischemia
    J Frederik Frøen
    Department of Pediatric Research, The National Hospital, University of Oslo, N 0027 Oslo, Norway
    Brain Res 942:87-94. 2002
    ..Thus IL-10 counteracts acute effects of endotoxin on cerebral metabolism, microcirculation and oxygen tension during hypoxia-ischemia in the perinatal brain...
  8. ncbi request reprint Prolonged apneas and hypoxia mediated by nicotine and endotoxin in piglets
    J Frederik Frøen
    Department of Pediatric Research, The National Hospital, University of Oslo, Norway
    Biol Neonate 81:119-25. 2002
    ..We investigated the acute effects of nicotine and endotoxin on repeated apnea by laryngeal reflex stimulation and the following autoresuscitation...
  9. ncbi request reprint [Finding the cause of death in intrauterine death--which examination should be done?]
    J F Frøen
    Kvinneklinikken og Pediatrisk forskningsinstitutt, Rikshospitalet 0027 Oslo
    Tidsskr Nor Laegeforen 121:326-30. 2001
    ..One quarter are diagnosed as Sudden Intrauterine Unexplained Death (SIUD). Precise knowledge of the cause of death is needed as a basis for counselling, prevention and treatment...
  10. ncbi request reprint Effect of interleukin-10 on newborn piglet brain following hypoxia-ischemia and endotoxin-induced inflammation
    Kristin Lyng
    Department of Pediatric Research, University of Oslo, Oslo, Norway
    Biol Neonate 87:207-16. 2005
    ..We wanted to assess (1) whether IL-10 had a beneficial effect on brain metabolism and microcirculation in newborn piglets after an inflammatory, hypoxic and ischemic challenge, and (2) whether IL-10 had any harmful effects per se...
  11. ncbi request reprint Inflammation increases vulnerability to hypoxia in newborn piglets: effect of reoxygenation with 21% and 100% O2
    Kristin Lyng
    Department of Pediatric Research, Rikshospitalet University Hospital, Oslo, Norway
    Am J Obstet Gynecol 192:1172-8. 2005
    ..The purpose of this study was to assess whether inflammation increases vulnerability to hypoxia, and influences the effect of 100% O(2) and 21% O 2 reoxygenation on brain...
  12. doi request reprint Management of decreased fetal movements
    J Frederik Frøen
    Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
    Semin Perinatol 32:307-11. 2008
    ..We propose guidelines for management of decreased fetal movements that include both a nonstress test and an ultrasound scan and report findings in 3014 cases of decreased fetal movements...
  13. ncbi request reprint Fetal brain injury in experimental intrauterine asphyxia and inflammation in Göttingen minipigs
    Kristin Lyng
    Department of Obstetrics and Gynecology, Rikshospitalet University Hospital, Oslo, Norway
    J Perinat Med 34:226-34. 2006
    ..To examine fetal brain injury in the Göttingen minipig following intrauterine asphyxia and infection/inflammation induced at 3/4 of gestational length...
  14. ncbi request reprint Cause and risk of stillbirth in twin pregnancies: a retrospective audit
    Annelise Skeie
    Laerdal Hospital, and Department of Obstetrics and Gynecology, Rikshospitalet University Clinic, University of Oslo, Norway
    Acta Obstet Gynecol Scand 82:1010-6. 2003
    ..We report the causes of death in twin pregnancies and their respective risk factors...
  15. pmc Implementation of uniform information on fetal movement in a Norwegian population reduced delayed reporting of decreased fetal movement and stillbirths in primiparous women - a clinical quality improvement
    Eli Saastad
    Norwegian Institute of Public Health, Division of Epidemiology, Oslo, Norway
    BMC Res Notes 3:2. 2010
    ..We aimed to evaluate an intervention of implementation of uniform information on fetal activity to women during the antenatal period...
  16. doi request reprint Fetal movement assessment
    J Frederik Frøen
    Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
    Semin Perinatol 32:243-6. 2008
    ....
  17. ncbi request reprint Suboptimal care in stillbirths - a retrospective audit study
    Eli Saastad
    Ulleval University Hospital, Oslo, Norway
    Acta Obstet Gynecol Scand 86:444-50. 2007
    ..One reason for this is improved perinatal care. The aim of this study was to explore whether sub-optimal factors in stillbirths were more frequent among non-western than western women...
  18. pmc Wavelet principal component analysis of fetal movement counting data preceding hospital examinations due to decreased fetal movement: a prospective cohort study
    Brita Askeland Winje
    Division of Epidemiology, Norwegian Institute of Public Health, PO Box 4404, Nydalen, 0403, Oslo, Norway
    BMC Pregnancy Childbirth 13:172. 2013
    ..Fetal movement (FM) counting is a simple and widely used method of assessing fetal well-being. However, little is known about what women perceive as decreased fetal movement (DFM) and how maternally perceived DFM is reflected in FM charts...
  19. pmc Placental pathology in pregnancies with maternally perceived decreased fetal movement--a population-based nested case-cohort study
    Brita Askeland Winje
    Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
    PLoS ONE 7:e39259. 2012
    ..Our main objective was to explore whether maternal perceptions of DFM were associated with placental pathology in pregnancies recruited from a low-risk total population...
  20. pmc Fetal movement counting improved identification of fetal growth restriction and perinatal outcomes--a multi-centre, randomized, controlled trial
    Eli Saastad
    Faculty of Health, Nutrition and Management, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
    PLoS ONE 6:e28482. 2011
    ..We aimed to assess effects of fetal movement counting on identification of fetal pathology and pregnancy outcome...
  21. pmc Reduction of late stillbirth with the introduction of fetal movement information and guidelines - a clinical quality improvement
    Julie Victoria Holm Tveit
    Division of Obstetrics and Gynecology, and Centre for Perinatal Research, Rikshospitalet University Hospital, University of Oslo, Medical Faculty, Norway
    BMC Pregnancy Childbirth 9:32. 2009
    ....
  22. pmc Temporal patterns in count-to-ten fetal movement charts and their associations with pregnancy characteristics: a prospective cohort study
    Brita Askeland Winje
    Division of Epidemiology, Norwegian Institute of Public Health, Nydalen, 0403, Oslo, Norway
    BMC Pregnancy Childbirth 12:124. 2012
    ..We aimed to identify the main individual temporal patterns in fetal movement counting charts, and explore their associations with pregnancy characteristics...
  23. pmc Causes of death and associated conditions (Codac): a utilitarian approach to the classification of perinatal deaths
    J Frederik Frøen
    Department of Genes and Environment, Division of Epidemiology, Norwegian Institute of Public Health, Nydalen, Oslo, Norway
    BMC Pregnancy Childbirth 9:22. 2009
    ..The appropriately applied Codac system promises to better manage information on causes of perinatal deaths, the conditions associated with them, and the most common clinical scenarios for future study and comparisons...
  24. doi request reprint Stillbirths: why they matter
    J Frederik Frøen
    Division of Epidemiology, Norwegian Institute of Public Health, Oslo, Norway
    Lancet 377:1353-66. 2011
    ..Knowledge of causes and feasible solutions for prevention is key to health professionals' priorities, to which this Stillbirths Series paper aims to contribute...