Ann Hellström

• Visual acuity outcomes up to 12 years and risk factors for visual impairment in a national cohort of extremely preterm born children - The Extremely Preterm Infants in Sweden Study (EXPRESS)

  Despoina Tsamadou, Karin Kallen, Abbas Al-Hawasi, Ann Hellström, Gerd Holmstrom, Fatima Pedrosa-Domellof, Kristina Tornqvist, Ulrika Kjellstrom, Lisa B. Thorell, Lena Hellstrom-Westas, Andreas Ohlin, Ulrika Aden, Kerstin Hellgren
  ACTA OPHTHALMOLOGICA - 2026
• External validation and updating of DIGIROP prediction models including parenteral nutrition for treatment-requiring retinopathy of prematurity in a Swedish national cohort

  Aldina Pivodic, Karin Berg, Jenny Wallander, Lois Smith, Eva Larsson, Despina Tsamadou, Karin Sandgren Hochhard, Kristina Tear Fahnehjelm, Lotta Granse, Gerd E. Holmstrom, Ann Hellström, Pia Lundgren
  BMJ OPEN OPHTHALMOLOGY - 2026
• Long-Term Societal Costs After Births Before 24 Weeks of Gestation in Sweden

  Chatarina Löfqvist, Boubou Hallberg, Ulrika Sjöbom, David Ley, Liv Vallin, Eva Morsing, Karin Sävman, Ann Hellström, Hanna Gyllensten
  ACTA PAEDIATRICA - 2026
• Treating Retinopathy of Prematurity with Dexamethasone Eye Drops A Difference-in-Differences Study in Sweden Using Register Data

  Lotta A. K. C. Granse, Hanna Maria V. Ohnell, Gerd Holmstrom, Johanna C. Sundgren, Kristina Tear Fahnehjelm, Agneta Wallin, Eva Larsson, Despoina Tsamadou, Lars J. Bjorklund, Ann Hellström, Jenny Wallander, Karin Sandgren Hochhard, Sten O. L. Andreasson, Elisabeth R. Olhager, Jonas Bjork
  OPHTHALMOLOGY - 2026
• Fatty Acid Supplementation and Retinopathy of Prematurity

  Pia Lundgren, Staffan Nilsson, Aldina Pivodic, Anders Nilsson, Lois E. H. Smith, Ann Hellström
  JAMA OPHTHALMOLOGY - 2026
• Effect of enteral arachidonic acid and docosahexaenoic acid supplementation on brain volumes at term in preterm infants: a secondary outcome analysis of a randomised controlled trial.

  William Hellström, Pia Lundgren, Anders Nilsson, Staffan Nilsson, Anna-Lena Hård af Segerstad Boberg, Ulrika Sjöbom, Chatarina Löfqvist, Isabella Björkman-Burtscher, Dirk Wackernagel, Ingrid Hansen-Pupp, Lois Eh Smith, Boubou Hallberg, Karin Sävman, David Ley, Ann Hellström, Rolf A Heckemann
  Archives of disease in childhood. Fetal and neonatal edition - 2026
• Proteomic Profile in Retinopathy of Prematurity: A Secondary Analysis of the Mega Donna Mega Randomized Clinical Trial

  Pia Lundgren, Hanna Danielsson, Mohit Panwar, Maria Bueno Alvez, Aldina Pivodic, Wen Zhong, Nele Brusselaers, Dirk Wackernagel, Ulrika Sjöbom, Karin Sävman, Ingrid Hansen Pupp, David Ley, Susanna Klevebro, Anders Nilsson, Zhongjie Fu, Lois E. H. Smith, Mathias Uhlen, Ann Hellström
  JAMA OPHTHALMOLOGY - 2026
• Platelet characteristics in extremely preterm infants after fatty acid supplementation: a randomized controlled trial

  Pia Lundgren, Aldina Pivodic, Anders Nilsson, Gunnel Hellgren, Hanna Danielsson, Dirk Wackernagel, Ingrid Hansen Pupp, David Ley, Karin Sävman, Mattias Uhlén, Lois E.H. Smith, Ann Hellström
  Pediatric Research - 2025
• Modelling direct healthcare costs for screening and treatment of retinopathy of prematurity among infants born at gestational age <24 weeks: findings from a Swedish cohort.

  Chatarina Löfqvist, Shambhavi Sharma, Ann Hellström, Hanna Gyllensten
  BMJ open ophthalmology - 2025
• Neurofilament light chain associates with IVH and ROP in extremely preterm infants

  Ulrika Sjöbom, Annika Öhrfelt, Aldina Pivodic, Anders K. Nilsson, Kaj Blennow, Henrik Zetterberg, William Hellström, Hanna Danielsson, Lotta Granse, Karin Sävman, Dirk Wackernagel, Ingrid Hansen-Pupp, David Ley, Ann Hellström, Chatarina Löfqvist
  PEDIATRIC RESEARCH - 2025
• Circulating CD34 Positive Cells and Immunological Responses in Extremely Preterm Infants

  Ulrika Sjöbom, Helena Barreto Henriksson, Anders Nilsson, Pia Lundgren, Karin Sävman, Ann Hellström, Sofia Frändberg
  JOURNAL OF BLOOD MEDICINE - 2025
• Combined dietary omega-3 and omega-6 fatty acids protect against hyperglycemia-associated retinopathy in neonatal mice

  Myriam Boeck, Hitomi Yagi, Pia Lundgren, Aldina Pivodic, Anders Nilsson, Yan Zeng, Chuck T. Chen, Taku Kasai, Deokho Lee, Shen Nian, Victoria Hirst, Katherine Neilsen, Chaomei Wang, Jeff Lee, Mathew Yu, Andrew McCutcheon, Sasha A. Singh, Masanori Aikawa, Richard P. Bazinet, Zhongjie Fu, Ann Hellström, Lois EH Smith
  Pharmacological Research - 2025
• Immune development differs between preterm newborns fed mothers’ own milk and donor milk

  Ziyang Tan, Wen Zhong, Hanna Danielsson, Aron Arzoomand, Tadepally Lakshmikanth, Qi Chen, Jaromir Mikes, Jun Wang, Yang Chen, Anna James, Anders K. Nilsson, Anders Elfvin, Nele Brusselaers, Theo Portlock, Pia Lundgren, Karin Sävman, Dirk Wackernagel, Ingrid Hansen-Pupp, David Ley, Mathias Uhlén, Ann Hellström, Petter Brodin
  Iscience - 2025
• Evaluation of timed dexamethasone eye drops to prevent proliferative retinopathy of prematurity: a study protocol for a randomized intervention, multi-centre, double-blinded trial (DROPROP)

  Ann Hellström, Mariya Petrishka-Lozenska, Aldina Pivodic, Anders K. Nilsson, Ulrika Sjöbom, Ingrid Hansen Pupp, David Ley, Lotta Gränse, Hanna Maria Öhnell, Gunnar Jakobsson, Karin Sävman, Lois E.H. Smith, Pia Lundgren, Liv Vallin, Ylva Friberg-Riad, Karin Hochhard Sandgren, Sofie Eriksson, Stefan Löfgren, Evangelos Tsigkoulis, Jenny Wallander, Despina Tsamadou, Pierfrancesco Mirabelli, Fredrik Ingemansson, Nikica Tomašić, Afsaneh Alibakhsh, Erik Normann, Eva Albinsson, Uwe Ewald, Kristina Teär Fahnehjelm, Magnus Domellöf
  BMC Pediatrics - 2025
• Living in a bubble with profound difficulties-parents' experiences of extremely preterm survivors

  Malin Hansson, Aldina Pivodic, Chatarina Löfqvist, Karin Sävman, Boubou Hallberg, David Ley, Eva Morsing, Pia Lundgren, Jenny Gyllén, Carola Pfeiffer Mosesson, Ann Hellström
  ACTA PAEDIATRICA - 2025
• Predicting the risk of treatment-requiring retinopathy of prematurity in preterm infants in Greece. External validation of DIGIROP prognostic models

  Stella Moutzouri, Aldina Pivodic, Anna-Bettina Haidich, Aikaterini K. Seliniotaki, Maria Lithoxopoulou, Christos Tsakalidis, Ann Hellström, Nikolaos Ziakas, Asimina Mataftsi
  ACTA OPHTHALMOLOGICA - 2025
• Fetal haemoglobin and oxygen requirement in preterm infants: an observational study

  Tommy Ulinder, William Hellström, Christian Gadsboll, Linda Nilsson, Margareta Gebka, Gustav Robertz, Matteo Bruschettini, Ann Hellström, David Ley
  ARCHIVES OF DISEASE IN CHILDHOOD-FETAL AND NEONATAL EDITION - 2025
• Association between Early Postnatal Hydrocortisone and Retinopathy of Prematurity in Extremely Preterm Infants

  Mariya Petrishka-Lozenska, Aldina Pivodic, Anders Flisberg, Ingrid Hansen-Pupp, Lois E. H. Smith, Pia Lundgren, Ann Hellström
  NEONATOLOGY - 2025
• Ethical Biobanking in Extremely Preterm Infants: Lessons From the EPITOP Study

  Ulrika Sjöbom, Jenny Isaksson, Ruth Wickelgren, Liv Vallin, Anders K. Nilsson, Ann Hellström, Karin Sävman, Chatarina Löfqvist
  ACTA PAEDIATRICA - 2025
• Enteral supplementation with arachidonic and docosahexaenoic acid and pulmonary outcome in extremely preterm infants.

  Dirk Wackernagel, Anders K. Nilsson, Ulrika Sjöbom, Ann Hellström, Susanna Klevebro, Ingrid Hansen-Pupp
  Prostaglandins, Leukotrienes and Essential Fatty Acids - 2024
• Postnatal Dysregulation of Androgens in Extremely Preterm Male Infants

  Anders K. Nilsson, Ulrika Sjöbom, Andreas Landin, Mats X. Andersson, Henrik Ryberg, Aldina Pivodic, Chatarina Löfqvist, Karin Sävman, Matti Poutanen, Claes Ohlsson, Ann Hellström
  Journal of the Endocrine Society (JES) - 2024
• Arachidonic acid and docosahexaenoic acid levels correlate with the inflammation proteome in extremely preterm infants.

  Susanna Klevebro, Simon Kebede Merid, Ulrika Sjöbom, Wen Zhong, Hanna Danielsson, Dirk Wackernagel, Ingrid Hansen-Pupp, David Ley, Karin Sävman, Mathias Uhlén, Lois E H Smith, Ann Hellström, Anders K. Nilsson
  Clinical nutrition (Edinburgh, Scotland) - 2024
• Timed topical dexamethasone eye drops improve mitochondrial function to prevent severe retinopathy of prematurity

  Hitomi Yagi, Myriam Boeck, Mariya Petrishka-Lozenska, Pia Lundgren, Taku Kasai, Gael Cagnone, Katherine Neilsen, Chaomei Wang, Jeff Lee, Yohei Tomita, Sasha A. Singh, Jean-Sebastien Joyal, Masanori Aikawa, Kazuno Negishi, Zhongjie Fu, Ann Hellström, Lois E. H. Smith
  ANGIOGENESIS - 2024
• Nutritional interventions to prevent retinopathy of prematurity

  Ann Hellström, Elsa Kermorvant-Duchemin, Mark Johnson, Miguel Sáenz de Pipaón, Lois E. Smith, Anna-Lena Hård, Christoph Fusch, Silvia Iacobelli, Mark J. Johnson, Alexandre Lapillonne, Sissel J. Moltu, Miguel Sáenz de Pipaón, Gitte Zachariassen
  Pediatric Research - 2024
• Mitochondrial control of hypoxia-induced pathological retinal angiogenesis

  Hitomi Yagi, Myriam Boeck, Shen Nian, Katherine Neilsen, Chaomei Wang, Jeff Lee, Yan Zeng, Matthew Grumbine, Ian R. Sweet, Taku Kasai, Kazuno Negishi, Sasha A. Singh, Masanori Aikawa, Ann Hellström, Lois E. H. Smith, Zhongjie Fu
  ANGIOGENESIS - 2024
• Challenges of parenting children born before 24 weeks of gestation

  Aldina Pivodic, Malin Hansson, Chatarina Löfqvist, Karin Sävman, Anders Elfvin, Lena Jacobson, Lisa Dinkler, Boubou Hallberg, David Ley, Eva Morsing, Pia Lundgren, Jenny Gyllén, Carola Pfeiffer Mosesson, Ann Hellström
  Acta Paediatrica - 2024
• Cytokine and growth factor correlation networks associated with morbidities in extremely preterm infants

  Veronika Golubinskaya, Holger Nilsson, Halfdan Rydbeck, William Hellström, Gunnel Hellgren, Ann Hellström, Karin Sävman, Carina Mallard
  BMC PEDIATRICS - 2024
• ROP: 80 Years after Its Detection - Where Do We Stand and How Long Will We Continue to Laser?

  Ann Hellström, Lois E.H. Smith, Anna-Lena Hård
  Neonatology - 2024
• Bacterial species in cord blood and their significance in the context of clinical use

  Helena Barreto Henriksson, Ann Hellström, Anders K. Nilsson, Ulrika Sjöbom, Bodil Jonsson, Sofia Frändberg
  TRANSFUSION AND APHERESIS SCIENCE - 2024
• Therapeutic Effects of Anti-Inflammatory and Anti-Oxidant Nutritional Supplementation in Retinal Ischemic Diseases

  Deokho Lee, Zhongjie Fu, Ann Hellström, Lois E. H. Smith
  INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES - 2024
• Circulating VEGF-A Levels in Relation to Retinopathy of Prematurity and Treatment Effects: A Systematic Review and Meta-Analysis

  Ulrika Sjöbom, Tove Hellqvist, Jhangir Humayun, Anders K. Nilsson, Hanna Gyllensten, Ann Hellström, Chatarina Löfqvist
  OPHTHALMOLOGY SCIENCE - 2024
• Treatment for retinopathy of prematurity in Sweden 2008-2021: Reduced gestational age of treated infants and remaining differences in treatment type and recurrence rates between hospitals

  Gerd Holmstrom, Ann Hellström, Kristina Teer Fahnehjelm, Lotta Granse, Karin Sandgren Hochhard, Birgitta Sunnqvist, Kristina Tornqvist, Despoina Tsamadou, Agneta Wallin, Eva Larsson
  ACTA OPHTHALMOLOGICA - 2024
• Ophthalmological outcome of 6.5 years children treated for retinopathy of prematurity: a Swedish register study

  E. Larsson, Ann Hellström, K. Tornqvist, A. Wallin, B. Sunnqvist, K. S. Hochhard, Pia Lundgren, A. Al-Hawasi, K. T. Fahnehjelm, L. Granse, G. Holmstrom
  British Journal of Ophthalmology - 2024
• Allt fler barn födda före vecka 24 överlever, men sjukligheten är hög

  Eva Morsing, Pia Lundgren, Anna-Lena Hård, Alexander Rakow, Lena Hellström-Westas, Lena Jacobson, Mats Johnson, Staffan Nilsson, David Ley, Karin Sävman, Ann Hellström
  Lakartidningen - 2023
• FGF21 via mitochondrial lipid oxidation promotes physiological vascularization in a mouse model of Phase I ROP

  Zhongjie Fu, Pia Lundgren, Aldina Pivodic, Hitomi Yagi, Jarrod C. Harman, Jay Yang, Minji Ko, Katherine Neilsen, Saswata Talukdar, Ann Hellström, Lois E.H. Smith
  Angiogenesis - 2023
• Prognostic Value of Parenteral Nutrition Duration on Risk of Retinopathy of Prematurity Development and Validation of the Revised DIGIROP Clinical Decision Support Tool

  Aldina Pivodic, Gerd Holmstrom, Lois E. H. Smith, Anna-Lena Hård, Chatarina Löfqvist, Abbas Al-Hawasi, Eva Larsson, Pia Lundgren, Lotta Granse, Kristina Tornqvist, Agneta Wallin, Helena Johansson, Kerstin Albertsson-Wikland, Staffan Nilsson, Ann Hellström
  JAMA OPHTHALMOLOGY - 2023
• Postnatal hyperglycemia alters amino acid in retinas (model of Phase I ROP)

  J. C. Harman, Aldina Pivodic, Anders K. Nilsson, M. Boeck, H. Yagi, K. Neilsen, M. J. Ko, J. Y. Yang, M. Kinter, Ann Hellström, Z. J. Fu
  Iscience - 2023
• Proteomics identifies lipocalin-2 in neonatal inflammation associated with cerebrovascular alteration in mice and preterm infants

  Giacomo Gravina, Maryam Ardalan, Tetyana Chumak, Anders K. Nilsson, C. Joakim Ek, H. Danielsson, Pernilla Svedin, Milos Pekny, Marcela Pekna, Karin Sävman, Ann Hellström, Carina Mallard
  iScience - 2023
• Is thrombocytopenia and postnatal weight gain associated with treatment-requiring retinopathy of prematurity? A matched case-control study.

  Aikaterini K Seliniotaki, Maria Lithoxopoulou, Stella Moutzouri, Emmanouil Bouras, Elisavet Diamanti, Nikolaos Ziakas, Pia Lundgren, Ann Hellström, Anna-Bettina Haidich, Asimina Mataftsi
  Acta ophthalmologica - 2023
• Evaluation of recombinant human IGF-1/IGFBP-3 on intraventricular hemorrhage prevention and survival in the preterm rabbit pup model

  Claes Ekström, Niklas Ortenlöf, Amanda Kristiansson, Bo Holmqvist, Åsa Jungner, Suvi Vallius, Xiaoyang Wang, Ann Hellström, Norman Barton, Galen Carey, David Ley, Magnus Gram
  Scientific Reports - 2023
• Visual outcome at 2.5 years of age in ω-3 and ω-6 long-chain polyunsaturated fatty acid supplemented preterm infants: a follow-up of a randomized controlled trial

  Pia Lundgren, Lena Jacobson, L. Granse, Anna-Lena Hård, Karin Sävman, I. Hansen-Pupp, D. Ley, Anders K. Nilsson, Aldina Pivodic, L. E. Smith, Ann Hellström
  Lancet Regional Health-Europe - 2023
• Modification of serum fatty acids in preterm infants by parenteral lipids and enteral docosahexaenoic acid/arachidonic acid: A secondary analysis of the Mega Donna Mega trial

  Ulrika Sjöbom, Mats X. Andersson, Aldina Pivodic, A. M. Lund, M. Vanpee, I. Hansen-Pupp, D. Ley, D. Wackernagel, Karin Sävman, L. E. H. Smith, Chatarina Löfqvist, Ann Hellström, Anders K. Nilsson
  Clinical Nutrition - 2023
• Postnatal serum IGF-1 levels associate with brain volumes at term in extremely preterm infants

  William Hellström, L. M. Hortensius, Chatarina Löfqvist, Gunnel Hellgren, M. L. Tataranno, D. Ley, Mjnl Benders, Ann Hellström, Isabella Björkman-Burtscher, Rolf A. Heckemann, Karin Sävman
  Pediatric Research - 2023
• The development of blood protein profiles in extremely preterm infants follows a stereotypic evolution pattern

  W. Zhong, H. Danielsson, N. Brusselaers, D. Wackernagel, Ulrika Sjöbom, Karin Sävman, I. H. Pupp, D. Ley, Anders K. Nilsson, L. Fagerberg, M. Uhlen, Ann Hellström
  Communications Medicine - 2023
• Neurodevelopmental disorders and somatic diagnoses in a national cohort of children born before 24 weeks of gestation

  Eva Morsing, Pia Lundgren, Anna-Lena Hård, Alexander Rakow, Lena Hellström-Westas, Lena Jacobson, Mats Johnson, Staffan Nilsson, Lois E.H. Smith, Karin Sävman, Ann Hellström
  Acta Paediatrica, International Journal of Paediatrics - 2022
• Preterm infant circulating sex steroid levels are not altered by transfusion with adult male plasma: a retrospective multicentre cohort study

  Anders K. Nilsson, Gunnel Hellgren, Ulrika Sjöbom, Andreas Landin, Henrik Ryberg, D. Wackernagel, D. Ley, I. H. Pupp, Matti Poutanen, Claes Ohlsson, Ann Hellström
  Archives of Disease in Childhood-Fetal and Neonatal Edition - 2022
• National cohort of infants born before 24 gestational weeks showed increased survival rates but no improvement in neonatal morbidity

  Pia Lundgren, E. Morsing, Anna-Lena Hård, A. Rakow, L. Hellstrom-Westas, Lena Jacobson, Mats Johnson, G. Holmstrom, Staffan Nilsson, L. E. Smith, Karin Sävman, Ann Hellström
  Acta Paediatrica - 2022
• Evaluation of the Retinopathy of Prematurity Activity Scale (ROP-ActS) in a randomised controlled trial aiming for prevention of severe ROP: a substudy of the Mega Donna Mega trial

  Aldina Pivodic, H. Johansson, L. E. H. Smith, Chatarina Löfqvist, Kerstin Albertsson-Wikland, Staffan Nilsson, Ann Hellström
  Bmj Open Ophthalmology - 2022
• Costs associated with retinopathy of prematurity: a systematic review and meta-analysis.

  Hanna Gyllensten, Jhangir Humayun, Ulrika Sjöbom, Ann Hellström, Chatarina Löfqvist
  BMJ open - 2022
• Association of platelet deficiency with severe retinopathy of prematurity: a review

  A. K. Seliniotaki, A. B. Haidich, S. Moutzouri, M. Lithoxopoulou, N. Ziakas, Pia Lundgren, Ann Hellström, A. Mataftsi
  Acta Paediatrica - 2022

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