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Robert Christensen

This is a preview profile on BiomedExperts - the first literature-based scientific social network. It brings the right researchers together and allows them to collaborate online. Collexis and Dell provide the BiomedExperts network of +1.5 Million pre-calculated profiles free of charge to researchers worldwide.

Research Profile (preview)

Living Beings

Newborn Infant

Chemicals & Drugs

Concepts & Ideas

Anatomy

Physiology

Objects

Neonatal Intensive Care Units

Disorders

Procedures

Colony-Forming Units Assay

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Co-Publications
Name
52
Calhoun, Darlene
22
Lambert, Diane
22
Ohls, Robin
20
Sola, Martha
19
Juul, Sandra
19
Henry, E
18
Wiedmeier, Susan
15
Hutson, Alan
14
Maheshwari, Akhil
11
Rimsza, Lisa
9
Du, Yan
9
Baer, VL
8
Li, Yanjun
8
Lu, Wenge
7
Schmutz, N

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Publications

TOP 3
Gerday Erick; Baer Vickie L; Lambert Diane K; Paul David A; Sola-Visner Martha C; Pysher Theodore J; Christensen Robert D
Testing platelet mass versus platelet count to guide platelet transfusions in the neonatal intensive care unit.
Dohner M Lynn; Wiedmeier Susan E; Stoddard Ronald A; Null Donald; Lambert Diane K; Burnett Jill; Baer Vickie L; Hunt Joshua C; Henry Erick; Christensen Robert D
Very high users of platelet transfusions in the neonatal intensive care unit.
Jopling Jeffery; Henry Erick; Wiedmeier Susan E; Christensen Robert D
Reference ranges for hematocrit and blood hemoglobin concentration during the neonatal period: data from a multihospital health care system.

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All Publications

2009: Gerday Erick; Baer Vickie L; Lambert Diane K; Paul David A; Sola-Visner Martha C; Pysher Theodore J; Christensen Robert D
Testing platelet mass versus platelet count to guide platelet transfusions in the neonatal intensive care unit.
Transfusion 2009;49(10):2034-9.
2009: Dohner M Lynn; Wiedmeier Susan E; Stoddard Ronald A; Null Donald; Lambert Diane K; Burnett Jill; Baer Vickie L; Hunt Joshua C; Henry Erick; Christensen Robert D
Very high users of platelet transfusions in the neonatal intensive care unit.
Transfusion 2009;49(5):869-72.
2009: Jopling Jeffery; Henry Erick; Wiedmeier Susan E; Christensen Robert D
Reference ranges for hematocrit and blood hemoglobin concentration during the neonatal period: data from a multihospital health care system.
Pediatrics 2009;123(2):e333-7.
2009: Christensen Robert D; Henry Erick; Jopling Jeff; Wiedmeier Susan E
The CBC: reference ranges for neonates.
Seminars in perinatology 2009;33(1):3-11.
2009: Phelps M M; Bedard W S; Henry E; Christensen S S; Gardner R W; Karp T; Wiedmeier S E; Christensen R D
Attitudes of NICU professionals regarding feeding blood-tinged colostrum or milk.
Journal of perinatology : official journal of the California Perinatal Association 2009;29(2):119-23.
2009: Wiedmeier S E; Henry E; Sola-Visner M C; Christensen R D
Platelet reference ranges for neonates, defined using data from over 47,000 patients in a multihospital healthcare system.
Journal of perinatology : official journal of the California Perinatal Association 2009;29(2):130-6.
2009: Sheffield M J; Schmutz N; Lambert D K; Henry E; Christensen R D
Ibuprofen lysine administration to neonates with a patent ductus arteriosus: effect on platelet plug formation assessed by in vivo and in vitro measurements.
Journal of perinatology : official journal of the California Perinatal Association 2009;29(1):39-43.
2008: Christensen Robert D; Paul David A; Sola-Visner Martha C; Baer Vickie L
Improving platelet transfusion practices in the neonatal intensive care unit.
Transfusion 2008;48(11):2281-4.
2008: Montgomery D P; Plate C A; Jones M; Jones J; Rios R; Lambert D K; Schumtz N; Wiedmeier S E; Burnett J; Ail S; Brandel D; Maichuck G; Durham C A; Henry E; Christensen R D
Using umbilical cord tissue to detect fetal exposure to illicit drugs: a multicentered study in Utah and New Jersey.
Journal of perinatology : official journal of the California Perinatal Association 2008;28(11):750-3.
2008: Monson Sherry A; Henry Erick; Lambert Diane K; Schmutz Nancy; Christensen Robert D
In-hospital falls of newborn infants: data from a multihospital health care system.
Pediatrics 2008;122(2):e277-80.
2008: Schmutz N; Henry E; Jopling J; Christensen R D
Expected ranges for blood neutrophil concentrations of neonates: the Manroe and Mouzinho charts revisited.
Journal of perinatology : official journal of the California Perinatal Association 2008;28(4):275-81.
2008: Wiedmeier S E; Henry E; Christensen R D
Hematological abnormalities during the first week of life among neonates with trisomy 18 and trisomy 13: data from a multi-hospital healthcare system.
American journal of medical genetics. Part A 2008;146(3):312-20.
2008: Wiedmeier Susan E; Henry Erick; Baer Vicki L; Stoddard Ronald A; Eggert Larry D; Lambert Diane K; Christensen Robert D
Center differences in NEC within one health-care system may depend on feeding protocol.
American journal of perinatology 2008;25(1):5-11.
2008: Christensen R D; Jopling J; Henry E; Wiedmeier S E
The erythrocyte indices of neonates, defined using data from over 12,000 patients in a multihospital health care system.
Journal of perinatology : official journal of the California Perinatal Association 2008;28(1):24-8.
2008: Christensen Robert D; Lambert Diane K; Schmutz Nancy; Stodderd Ronald A
Fatal bowel necrosis in two polycytemic term neonates.
Fetal and pediatric pathology 2008;27(1):41-4.
2007: Baer V L; Lambert D K; Henry E; Snow G L; Sola-Visner M C; Christensen R D
Do platelet transfusions in the NICU adversely affect survival? Analysis of 1600 thrombocytopenic neonates in a multihospital healthcare system.
Journal of perinatology : official journal of the California Perinatal Association 2007;27(12):790-6.
2007: Christensen R D; Rigby G; Schmutz N; Lambert D K; Wiedmeier S E; Burnett J; Scoffield S H; Muelleck R; Snow K; Woodhead D D; Snow G L
ETCare: a randomized, controlled, masked trial comparing two solutions for upper airway care in the NICU.
Journal of perinatology : official journal of the California Perinatal Association 2007;27(8):479-84.
2007: Lambert D K; Christensen R D; Henry E; Besner G E; Baer V L; Wiedmeier S E; Stoddard R A; Miner C A; Burnett J
Necrotizing enterocolitis in term neonates: data from a multihospital health-care system.
Journal of perinatology : official journal of the California Perinatal Association 2007;27(7):437-43.
2007: Christensen R D; Henry E; Wiedmeier S E; Burnett J; Lambert D K
Identifying patients, on the first day of life, at high-risk of developing parenteral nutrition-associated liver disease.
Journal of perinatology : official journal of the California Perinatal Association 2007;27(5):284-90.
2007: Sola-Visner Martha C; Christensen Robert D; Hutson Alan D; Rimsza Lisa M
Megakaryocyte size and concentration in the bone marrow of thrombocytopenic and nonthrombocytopenic neonates.
Pediatric research 2007;61(4):479-84.
2007: Woodhead D D; Lambert D K; Molloy D A; Schmutz N; Righter E; Baer V L; Christensen R D
Avoiding endotracheal intubation of neonates undergoing laser surgery for retinopathy of prematurity.
Journal of perinatology : official journal of the California Perinatal Association 2007;27(4):209-13.
2007: Christensen R D; Alder S C; Richards S C; Lambert D K; Schmutz N; Wiedmeier S E; Burnett J; Baer V L; Horn J T; Richards M; Barraza J
D-Penicillamine administration and the incidence of retinopathy of prematurity.
Journal of perinatology : official journal of the California Perinatal Association 2007;27(2):103-11.
2007: Barney C K; Lambert D K; Alder S C; Scoffield S H; Schmutz N; Christensen R D
Treating feeding intolerance with an enteral solution patterned after human amniotic fluid: a randomized, controlled, masked trial.
Journal of perinatology : official journal of the California Perinatal Association 2007;27(1):28-31.
2007: Henry E; Walker D; Wiedmeier S E; Christensen R D
Hematological abnormalities during the first week of life among neonates with Down syndrome: data from a multihospital healthcare system.
American journal of medical genetics. Part A 2007;143(1):42-50.
2006: Street Jennifer L; Montgomery Dianne; Alder Stephen C; Lambert Diane K; Gerstmann Dale R; Christensen Robert D
Implementing feeding guidelines for NICU patients<2000 g results in less variability in nutrition outcomes.
JPEN. Journal of parenteral and enteral nutrition 2006;30(6):515-8.
2006: Christensen R D; Henry E; Wiedmeier S E; Stoddard R A; Lambert D K
Low blood neutrophil concentrations among extremely low birth weight neonates: data from a multihospital health-care system.
Journal of perinatology : official journal of the California Perinatal Association 2006;26(11):682-7.
2006: Warwood T L; Ohls R K; Lambert D K; Leve E A; Veng-Pedersen P; Christensen R D
Urinary excretion of darbepoetin after intravenous vs subcutaneous administration to preterm neonates.
Journal of perinatology : official journal of the California Perinatal Association 2006;26(10):636-9.
2006: Woodhead D D; Lambert D K; Clark J M; Christensen R D
Comparing two methods of delivering high-flow gas therapy by nasal cannula following endotracheal extubation: a prospective, randomized, masked, crossover trial.
Journal of perinatology : official journal of the California Perinatal Association 2006;26(8):481-5.
2006: Christensen R D; Henry E; Wiedmeier S E; Stoddard R A; Sola-Visner M C; Lambert D K; Kiehn T I; Ainsworth S
Thrombocytopenia among extremely low birth weight neonates: data from a multihospital healthcare system.
Journal of perinatology : official journal of the California Perinatal Association 2006;26(6):348-53.
2006: Eggert Larry D; Wiedmeier Susan E; Wilson Janie; Christensen Robert D
The effect of instituting a prehospital-discharge newborn bilirubin screening program in an 18-hospital health system.
Pediatrics 2006;117(5):e855-62.
2006: Warwood T L; Ohls R K; Lambert D K; Jones C; Scoffield S H; Gupta N; Veng-Pedersen P; Christensen R D
Intravenous administration of darbepoetin to NICU patients.
Journal of perinatology : official journal of the California Perinatal Association 2006;26(5):296-300.
2006: Christensen R D; Alder S C; Richards S C; Horn J T; Lambert D K; Baer V L
A pilot trial testing the feasibility of administering D-penicillamine to extremely low birth weight neonates.
Journal of perinatology : official journal of the California Perinatal Association 2006;26(2):120-4.
2006: Christensen R D; Henry E; Kiehn T I; Street J L
Pattern of daily weights among low birth weight neonates in the neonatal intensive care unit: data from a multihospital health-care system.
Journal of perinatology : official journal of the California Perinatal Association 2006;26(1):37-43.
2006: Montgomery D; Plate C; Alder S C; Jones M; Jones J; Christensen R D
Testing for fetal exposure to illicit drugs using umbilical cord tissue vs meconium.
Journal of perinatology : official journal of the California Perinatal Association 2006;26(1):11-4.
2006: Saxonhouse Matthew A; Rimsza Lisa M; Stevens Gary; Jouei Nazanin; Christensen Robert D; Sola Martha C
Effects of hypoxia on megakaryocyte progenitors obtained from the umbilical cord blood of term and preterm neonates.
Biology of the neonate 2006;89(2):104-8.
2005: Warwood Teresa L; Ohls Robin K; Wiedmeier Susan E; Lambert Diane K; Jones Cory; Scoffield Scott H; Neeraj Gupta; Veng-Pedersen Peter; Christensen Robert D
Single-dose darbepoetin administration to anemic preterm neonates.
Journal of perinatology : official journal of the California Perinatal Association 2005;25(11):725-30.
2005: Lu Wenge; Gersting Jason A; Maheshwari Akhil; Christensen Robert D; Calhoun Darlene A
Developmental expression of chemokine receptor genes in the human fetus.
Early human development 2005;81(6):489-96.
2005: Christensen Robert D; Havranek Thomas; Gerstmann Dale R; Calhoun Darlene A
Enteral administration of a simulated amniotic fluid to very low birth weight neonates.
Journal of perinatology : official journal of the California Perinatal Association 2005;25(6):380-5.
2005: Lu Wenge; Maheshwari Akhil; Misiuta Iwona; Fox Samuel E; Chen Ning; Zigova Tanja; Christensen Robert D; Calhoun Darlene A
Neutrophil-specific chemokines are produced by astrocytic cells but not by neuronal cells.
Brain research. Developmental brain research 2005;155(2):127-34.
2005: Tighe Patrick; Rimsza Lisa M; Christensen Robert D; Lew Judy; Sola Martha C
Severe thrombocytopenia in a neonate with congenital HIV infection.
The Journal of pediatrics 2005;146(3):408-13.
2005: Maheshwari Akhil; Lu Wenge; Guida Wayne C; Christensen Robert D; Calhoun Darlene A
IL-8/CXC ligand 8 survives neonatal gastric digestion as a result of intrinsic aspartyl proteinase resistance.
Pediatric research 2005;57(3):438-44.
2005: Fox Samuel E; Lu Wenge; Maheshwari Akhil; Christensen Robert D; Calhoun Darlene A
The effects and comparative differences of neutrophil specific chemokines on neutrophil chemotaxis of the neonate.
Cytokine 2005;29(3):135-40.
2004: Saxonhouse Matthew A; Sola Martha C; Pastos Karen M; Ignatz Mark E; Hutson Alan D; Christensen Robert D; Rimsza Lisa M
Reticulated platelet percentages in term and preterm neonates.
Journal of pediatric hematology/oncology : official journal of the American Society of Pediatric Hematology/Oncology 2004;26(12):797-802.
2004: Sola Martha C; Slayton William B; Rimsza Lisa M; Perez Jose A; Fuchs Deborah; Calhoun Darlene A; Christensen Robert D
A neonate with severe thrombocytopenia and radio-ulnar synostosis.
Journal of perinatology : official journal of the California Perinatal Association 2004;24(8):528-30.
2004: Maheshwari Akhil; Lacson Atilano; Lu Wenge; Fox Samuel E; Barleycorn Aaron A; Christensen Robert D; Calhoun Darlene A
Interleukin-8/CXCL8 forms an autocrine loop in fetal intestinal mucosa.
Pediatric research 2004;56(2):240-9.
2004: Christensen Robert D; Sola Martha C; Rimsza Lisa M; McMahan Michael J; Calhoun Darlene A
Pseudothrombocytopenia in a preterm neonate.
Pediatrics 2004;114(1):273-5.
2004: Saxonhouse Matthew A; Christensen Robert D; Walker Danielle M; Hutson Alan D; Sola Martha C
The concentration of circulating megakaryocyte progenitors in preterm neonates is a function of post-conceptional age.
Early human development 2004;78(2):119-24.
2004: Kotto-Kome Anne C; Fox Samuel E; Lu Wenge; Yang Bing-Bing; Christensen Robert D; Calhoun Darlene A
Evidence that the granulocyte colony-stimulating factor (G-CSF) receptor plays a role in the pharmacokinetics of G-CSF and PegG-CSF using a G-CSF-R KO model.
Pharmacological research : the official journal of the Italian Pharmacological Society 2004;50(1):55-8.
2004: Lima-Rogel Victoria; Ojeda Miguel Angel; Villegas Carolina; Torres-Montes Abraham; Medrano Silvano; Calhoun Darlene A; Christensen Robert D
Tolerance of an enterally administered simulated amniotic fluid-like solution by neonates recovering from surgery for congenital bowel abnormalities.
Journal of perinatology : official journal of the California Perinatal Association 2004;24(5):295-8.
2004: Gersting Jason A; Christensen Robert D; Calhoun Darlene A
Effects of enterally administering granulocyte colony-stimulating factor to suckling mice.
Pediatric research 2004;55(5):802-6.
2004: Maheshwari Akhil; Christensen Robert D; Calhoun Darlene A; Dimmitt Reed A; Lacson Atilano
Circulating CXC-chemokine concentrations in a murine intestinal ischemia-reperfusion model.
Fetal and pediatric pathology 2004;23(2-3):145-57.
2004: Calhoun Darlene A; Christensen Robert D
Hematopoietic growth factors in neonatal medicine: the use of enterally administered hematopoietic growth factors in the neonatal intensive care unit.
Clinics in perinatology 2004;31(1):169-82.
2004: Christensen Robert D; Calhoun Darlene A
Congenital neutropenia.
Clinics in perinatology 2004;31(1):29-38.
2004: Kotto-Kome Anne C; Garcia Maria G; Calhoun Darlene A; Christensen Robert D
Effect of beginning recombinant erythropoietin treatment within the first week of life, among very-low-birth-weight neonates, on "early" and "late" erythrocyte transfusions: a meta-analysis.
Journal of perinatology : official journal of the California Perinatal Association 2004;24(1):24-9.
2004: Kotto-Kome Anne C; Calhoun Darlene A; Montenegro Raul; Sosa Roberto; Maldonado Luis; Christensen Robert D
Effect of administering recombinant erythropoietin to women with postpartum anemia: a meta-analysis.
Journal of perinatology : official journal of the California Perinatal Association 2004;24(1):11-5.
2004: Rimsza Lisa M; Douglas Vonda K; Tighe Patrick; Saxonhouse Matthew A; Calhoun Darlene A; Christensen Robert D; Sola Martha C
Benign B-cell precursors (hematogones) are the predominant lymphoid population in the bone marrow of preterm infants.
Biology of the neonate 2004;86(4):247-53.
2004: Condino Adria A; Barleycorn Aaron A; Lu Wenge; Maheshwari Akhil; Christensen Robert D; Calhoun Darlene A
Abnormal intestinal histology in neonates with congenital anomalies of the gastrointestinal tract.
Biology of the neonate 2004;85(3):145-50.
2003: Gersting Jason A; Kotto-Kome Catherine A; Du Yan; Christensen Robert D; Calhoun Darlene A
Bioavailability of granulocyte colony-stimulating factor administered enterally to suckling mice.
Pharmacological research : the official journal of the Italian Pharmacological Society 2003;48(6):643-7.
2003: Saxonhouse Matthew A; Rimsza Lisa M; Christensen Robert D; Hutson Alan D; Stegner Joseph; Koenig Joyce M; Sola Martha C
Effects of anoxia on megakaryocyte progenitors derived from cord blood CD34pos cells.
European journal of haematology 2003;71(5):359-65.
2003: Maheshwari Akhil; Christensen Robert D; Calhoun Darlene A
ELR+ CXC chemokines in human milk.
Cytokine 2003;24(3):91-102.
2003: Juul Sandra E; Christensen Robert D
Effect of recombinant granulocyte colony-stimulating factor on blood neutrophil concentrations among patients with "idiopathic neonatal neutropenia": a randomized, placebo-controlled trial.
Journal of perinatology : official journal of the California Perinatal Association 2003;23(6):493-7.
2003: Calhoun Darlene A; Maheshwari Akhil; Christensen Robert D
Recombinant granulocyte colony-stimulating factor administered enterally to neonates is not absorbed.
Pediatrics 2003;112(2):421-3.
2003: Lejkowski Marisa; Maheshwari Akhil; Calhoun Darlene A; Christensen Robert D; Skoda-Smith Suzanne; Dabrow Sharon
Persistent perianal abscess in early infancy as a presentation of autoimmune neutropenia.
Journal of perinatology : official journal of the California Perinatal Association 2003;23(5):428-30.
2003: Juul Sandra E; Christensen Robert D
Absorption of enteral recombinant human erythropoietin by neonates.
The Annals of pharmacotherapy 2003;37(6):782-6.
2003: Lima-Rogel Victoria; Calhoun Darlene A; Maheshwari Akhil; Torres-Montes Abraham; Roque-Sanchez Raul; Garcia Maria G; Christensen Robert D
Tolerance of a sterile isotonic electrolyte solution containing select recombinant growth factors in neonates recovering from necrotizing enterocolitis.
Journal of perinatology : official journal of the California Perinatal Association 2003;23(3):200-4.
2003: Gersting Jason A; Du Yan; Christensen Robert D; Calhoun Darlene A
Messenger RNA expression of granulocyte colony-stimulating factor receptor isoforms in the fetus.
Biology of the neonate 2003;83(3):191-6.
2002: Maheshwari Akhil; Lu Wenge; Lacson Atilano; Barleycorn Aaron A; Nolan Sheila; Christensen Robert D; Calhoun Darlene A
Effects of interleukin-8 on the developing human intestine.
Cytokine 2002;20(6):256-67.
2002: Dame Christof; Sola Martha C; Fandrey Joachim; Rimsza Lisa M; Freitag Patricia; Knöpfle Gisela; Christensen Robert D; Bungert Jörg
Developmental changes in the expression of transcription factors GATA-1, -2 and -3 during the onset of human medullary haematopoiesis.
British journal of haematology 2002;119(2):510-5.
2002: Sullivan Sandra E; Calhoun Darlene A; Maheshwari Akhil; Ashmeade Terri L; Auerbach David A; Hudak Mark L; Beltz Susan E; Christensen Robert D
Tolerance of simulated amniotic fluid in premature neonates.
The Annals of pharmacotherapy 2002;36(10):1518-24.
2002: Edstrom Cynthia S; McBride Jason; Theriaque Douglas; Kao K J; Christensen Robert D
Obtaining blood samples for anti-factor Xa quantification through umbilical artery catheters.
Journal of perinatology : official journal of the California Perinatal Association 2002;22(6):475-7.
2002: Chevuru Srinivas C; Sola Martha C; Theriaque Douglas W; Hutson Alan D; Leung Wilfred C W; Perez Jose A; Nelson Robert M; Kays David W; Christensen Robert D;
Multicenter analysis of platelet transfusion usage among neonates on extracorporeal membrane oxygenation.
Pediatrics 2002;109(6):e89.
2002: Sullivan Sandra E; Staba Susan L; Gersting Jason A; Hutson Alan D; Theriaque Douglas; Christensen Robert D; Calhoun Darlene A
Circulating concentrations of chemokines in cord blood, neonates, and adults.
Pediatric research 2002;51(5):653-7.
2002: Maheshwari Akhil; Christensen Robert D; Calhoun Darlene A
Resistance to recombinant human granulocyte colony-stimulating factor in neonatal alloimmune neutropenia associated with anti-human neutrophil antigen-2a (NB1) antibodies.
Pediatrics 2002;109(4):e64.
2002: Garcia Maria G; Hutson Alan D; Christensen Robert D
Effect of recombinant erythropoietin on "late" transfusions in the neonatal intensive care unit: a meta-analysis.
Journal of perinatology : official journal of the California Perinatal Association 2002;22(2):108-11.
2002: Bernstein Hilton M; Calhoun Darlene A; Christensen Robert D
Use of myeloid colony-stimulating factors in neonates with septicemia.
Current opinion in pediatrics 2002;14(1):91-4.
2002: Dame J Benjamin; Chegini Nasser; Christensen Robert D; Juul Sandra E
The effect of interleukin-1beta (IL-1beta) and tumor necrosis factor-alpha (TNF-alpha) on granulocyte macrophage-colony stimulating factor (GM-CSF) production by neuronal precursor cells.
European cytokine network 2002;13(1):128-33.
2002: Maheshwari Akhil; Christensen Robert D; Calhoun Darlene A
Immune neutropenia in the neonate.
Advances in pediatrics 2002;49():317-39.
2001: Kuntz T B; Christensen R D; Stegner J; Duff P; Koenig J M
Fas and Fas ligand expression in maternal blood and in umbilical cord blood in preeclampsia.
Pediatric research 2001;50(6):743-9.
2001: Koenig J M; Luttge B; Benson N A; Christensen R D
Cell cycle status of CD34+ cells in human fetal bone marrow.
Early human development 2001;65(2):159-63.
2001: Garcia M G; Duenas E; Sola M C; Hutson A D; Theriaque D; Christensen R D
Epidemiologic and outcome studies of patients who received platelet transfusions in the neonatal intensive care unit.
Journal of perinatology : official journal of the California Perinatal Association 2001;21(7):415-20.
2001: Sola M C; del Vecchio A; Edwards T J; Suttner D; Hutson A D; Christensen R D
The relationship between hematocrit and bleeding time in very low birth weight infants during the first week of life.
Journal of perinatology : official journal of the California Perinatal Association 2001;21(6):368-71.
2001: Papoff P; Christensen R D; Calhoun D A; Juul S E
Granulocyte colony-stimulating factor, granulocyte macrophage colony-stimulating factor and neutrophils in the bronchoalveolar lavage fluid of premature infants with respiratory distress syndrome.
Biology of the neonate 2001;80(2):133-41.
2001: Juul S E; Ledbetter D J; Joyce A E; Dame C; Christensen R D; Zhao Y; DeMarco V
Erythropoietin acts as a trophic factor in neonatal rat intestine.
Gut 2001;49(2):182-9.
2001: Calhoun D A; Gersting J A; Lunøe M; Du Y; Christensen R D
Transfer of recombinant human granulocyte colony stimulating factor (rhG-CSF) from the maternal to the fetal circulation is not dependent upon a functional G-CSF-receptor.
Placenta 2001;22(6):609-12.
2001: Christensen R D
Origins of the discipline 'neonatal haematology', 1925-75.
British journal of haematology 2001;113(4):853-60.
2001: Del Vecchio A; Sola M C; Theriaque D W; Hutson A D; Kao K J; Wright D; Garcia M G; Pollock B H; Christensen R D
Platelet transfusions in the neonatal intensive care unit:factors predicting which patients will require multiple transfusions.
Transfusion 2001;41(6):803-8.
2001: Bernstein H M; Pollock B H; Calhoun D A; Christensen R D
Administration of recombinant granulocyte colony-stimulating factor to neonates with septicemia: A meta-analysis.
The Journal of pediatrics 2001;138(6):917-20.
2001: Sola M C; Dame C; Christensen R D
Toward a rational use of recombinant thrombopoietin in the neonatal intensive care unit.
Journal of pediatric hematology/oncology : official journal of the American Society of Pediatric Hematology/Oncology 2001;23(3):179-84.
2001: Calhoun D A; Chegini N; Polliotti B M; Gersting J A; Miller R K; Christensen R D
Granulocyte colony-stimulating factor in preterm and term pregnancy, parturition, and intra-amniotic infection.
Obstetrics and gynecology 2001;97(2):229-34.
2001: Miura E; Procianoy R S; Bittar C; Miura C S; Miura M S; Mello C; Christensen R D
A randomized, double-masked, placebo-controlled trial of recombinant granulocyte colony-stimulating factor administration to preterm infants with the clinical diagnosis of early-onset sepsis.
Pediatrics 2001;107(1):30-5.
2001: Dame C; Juul S E; Christensen R D
The biology of erythropoietin in the central nervous system and its neurotrophic and neuroprotective potential.
Biology of the neonate 2001;79(3-4):228-35.
2000: Calhoun D A; Juul S E; McBryde E V; Veerman M W; Christensen R D
Stability of filgrastim and epoetin alfa in a system designed for enteral administration in neonates.
The Annals of pharmacotherapy 2000;34(11):1257-61.
2000: Juul S E; Zhao Y; Dame J B; Du Y; Hutson A D; Christensen R D
Origin and fate of erythropoietin in human milk.
Pediatric research 2000;48(5):660-7.
2000: Calhoun D A; Christensen R D; Edstrom C S; Juul S E; Ohls R K; Schibler K R; Sola M C; Sullivan S E
Consistent approaches to procedures and practices in neonatal hematology.
Clinics in perinatology 2000;27(3):733-53.
2000: Edstrom C S; Christensen R D
Evaluation and treatment of thrombosis in the neonatal intensive care unit.
Clinics in perinatology 2000;27(3):623-41.
2000: Christensen R D; Calhoun D A; Rimsza L M
A practical approach to evaluating and treating neutropenia in the neonatal intensive care unit.
Clinics in perinatology 2000;27(3):577-601.
2000: Calhoun D A; Christensen R D
Human developmental biology of granulocyte colony-stimulating factor.
Clinics in perinatology 2000;27(3):559-76, vi.
2000: Edstrom C S; Calhoun D A; Christensen R D
Expression of tissue factor pathway inhibitor in human fetal and placental tissues.
Early human development 2000;59(2):77-84.
2000: Sola M C; Du Y; Hutson A D; Christensen R D
Dose-response relationship of megakaryocyte progenitors from the bone marrow of thrombocytopenic and non-thrombocytopenic neonates to recombinant thrombopoietin.
British journal of haematology 2000;110(2):449-53.
2000: Calhoun D A; Sullivan S E; Lunøe M; Du Y; Christensen R D
Granulocyte-macrophage colony-stimulating factor and interleukin-5 concentrations in premature neonates with eosinophilia.
Journal of perinatology : official journal of the California Perinatal Association 2000;20(3):166-71.
2000: Sola M C; Christensen R D; Hutson A D; Tarantal A F
Pharmacokinetics, pharmacodynamics, and safety of administering pegylated recombinant megakaryocyte growth and development factor to newborn rhesus monkeys.
Pediatric research 2000;47(2):208-14.
2000: Calhoun D A; Lunøe M; Du Y; Hutson A D; Veerman M; Christensen R D
Granulocyte colony-stimulating factor serum and urine concentrations in neutropenic neonates before and after intravenous administration of recombinant granulocyte colony-stimulating factor.
Pediatrics 2000;105(2):392-7.
2000: Calhoun D A; Lunoe M; Du Y; Christensen R D
Granulocyte colony-stimulating factor is present in human milk and its receptor is present in human fetal intestine.
Pediatrics 2000;105(1):e7.
1999: Calhoun D A; Lunøe M; Du Y; Staba S L; Christensen R D
Concentrations of granulocyte colony-stimulating factor in human milk after in vitro simulations of digestion.
Pediatric research 1999;46(6):767-71.
1999: Sola M C; Rimsza L M; Christensen R D
A bone marrow biopsy technique suitable for use in neonates.
British journal of haematology 1999;107(2):458-60.
1999: Juul S E; Stallings S A; Christensen R D
Erythropoietin in the cerebrospinal fluid of neonates who sustained CNS injury.
Pediatric research 1999;46(5):543-7.
1999: Dame J B; Christensen R D; Juul S E
The distribution of granulocyte-macrophage colony-stimulating factor and its receptor in the developing human fetus.
Pediatric research 1999;46(4):358-66.
1999: Calhoun D A; Donnelly W H; Du Y; Dame J B; Li Y; Christensen R D
Distribution of granulocyte colony-stimulating factor (G-CSF) and G-CSF-receptor mRNA and protein in the human fetus.
Pediatric research 1999;46(3):333-8.
1999: Juul S E; Yachnis A T; Rojiani A M; Christensen R D
Immunohistochemical localization of erythropoietin and its receptor in the developing human brain.
Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society 1999;2(2):148-58.
1999: Sola M C; Calhoun D A; Hutson A D; Christensen R D
Plasma thrombopoietin concentrations in thrombocytopenic and non-thrombocytopenic patients in a neonatal intensive care unit.
British journal of haematology 1999;104(1):90-2.
1998: Slayton W B; Li Y; Calhoun D A; Juul S E; Iturraspe J; Braylan R C; Christensen R D
The first-appearance of neutrophils in the human fetal bone marrow cavity.
Early human development 1998;53(2):129-44.
1998: Juul S E; Yachnis A T; Christensen R D
Tissue distribution of erythropoietin and erythropoietin receptor in the developing human fetus.
Early human development 1998;52(3):235-49.
1998: Juul S E; Calhoun D A; Christensen R D
"Idiopathic neutropenia" in very low birthweight infants.
Acta paediatrica (Oslo, Norway : 1992) 1998;87(9):963-8.
1998: Calhoun D A; Christensen R D
A randomized pilot trial of administration of granulocyte colony-stimulating factor to women before preterm delivery.
American journal of obstetrics and gynecology 1998;179(3 Pt 1):766-71.
1998: Slayton W B; Juul S E; Calhoun D A; Li Y; Braylan R C; Christensen R D
Hematopoiesis in the liver and marrow of human fetuses at 5 to 16 weeks postconception: quantitative assessment of macrophage and neutrophil populations.
Pediatric research 1998;43(6):774-82.
1998: Papoff P; Christensen R D; Harcum J; Li Y
In vitro effect of dexamethasone phosphate on hematopoietic progenitor cells in preterm infants.
Archives of disease in childhood. Fetal and neonatal edition 1998;78(1):F67-9.
1998: Juul S E; Anderson D K; Li Y; Christensen R D
Erythropoietin and erythropoietin receptor in the developing human central nervous system.
Pediatric research 1998;43(1):40-9.
1997: Ohls R K; Harcum J; Li Y; Davila G; Christensen R D
Serum erythropoietin concentrations fail to increase after significant phlebotomy losses in ill preterm infants.
Journal of perinatology : official journal of the California Perinatal Association 1997;17(6):465-7.
1997: Ohls R K; Harcum J; Schibler K R; Christensen R D
The effect of erythropoietin on the transfusion requirements of preterm infants weighing 750 grams or less: a randomized, double-blind, placebo-controlled study.
The Journal of pediatrics 1997;131(5):661-5.
1997: Juul S E; Harcum J; Li Y; Christensen R D
Erythropoietin is present in the cerebrospinal fluid of neonates.
The Journal of pediatrics 1997;130(3):428-30.
1997: Calhoun D A; Christensen R D
The occurrence of Kostmann syndrome in preterm neonates.
Pediatrics 1997;99(2):259-61.
1996: Calhoun D A; Li Y; Christensen R D
Effect of recombinant granulocyte colony-stimulating factor on erythropoiesis in the human fetus and neonate.
Pediatric research 1996;40(6):872-5.
1996: Calhoun D A; Li Y; Braylan R C; Christensen R D
Assessment of the contribution of the spleen to granulocytopoiesis and erythropoiesis of the mid-gestation human fetus.
Early human development 1996;46(3):217-27.
1996: Li Y; Calhoun D A; Polliotti B M; Sola M C; al-Mulla Z; Christensen R D
Production of granulocyte colony-stimulating factor by the human placenta at various stages of development.
Placenta 1996;17(8):611-7.
1996: Lassiter H A; Robinson T W; Brown M S; Hall D C; Hill H R; Christensen R D
Effect of intravenous immunoglobulin G on the deposition of immunoglobulin G and C3 onto type III group B streptococcus and Escherichia coli K1.
Journal of perinatology : official journal of the California Perinatal Association 1996;16(5):346-51.
1996: Li Y; Juul S E; Morris-Wiman J A; Calhoun D A; Christensen R D
Erythropoietin receptors are expressed in the central nervous system of mid-trimester human fetuses.
Pediatric research 1996;40(3):376-80.
1996: Calhoun D A; Kirk J F; Christensen R D
Incidence, significance, and kinetic mechanism responsible for leukemoid reactions in patients in the neonatal intensive care unit: a prospective evaluation.
The Journal of pediatrics 1996;129(3):403-9.
1996: Ohls R K; Christensen R D
Stability of human recombinant epoetin alfa in commonly used neonatal intravenous solutions.
The Annals of pharmacotherapy 1996;30(5):466-8.
1996: Calhoun D A; Rosa C; Christensen R D
Transplacental passage of recombinant human granulocyte colony-stimulating factor in women with an imminent preterm delivery.
American journal of obstetrics and gynecology 1996;174(4):1306-11.
1996: Ohls R K; Veerman M W; Christensen R D
Pharmacokinetics and effectiveness of recombinant erythropoietin administered to preterm infants by continuous infusion in total parenteral nutrition solution.
The Journal of pediatrics 1996;128(4):518-23.
1995: Calhoun D A; Christensen R D
Commonly asked questions regarding infections in neonates.
Pediatric annals 1995;24(11):583-6, 589-91.
1995: Li Y; Ohls R K; Rosa C; Shah M; Richards D S; Christensen R D
Maternal and umbilical serum concentrations of granulocyte colony-stimulating factor and its messenger RNA during clinical chorioamnionitis.
Obstetrics and gynecology 1995;86(3):428-32.
1995: Britton J R; Christensen R D
Enteral administration of recombinant erythropoietin to preterm infants.
Journal of perinatology : official journal of the California Perinatal Association 1995;15(4):281-3.
1995: Ohls R K; Li Y; Abdel-Mageed A; Buchanan G; Mandell L; Christensen R D
Neutrophil pool sizes and granulocyte colony-stimulating factor production in human mid-trimester fetuses.
Pediatric research 1995;37(6):806-11.
1995: Ohls R K; Osborne K A; Christensen R D
Efficacy and cost analysis of treating very low birth weight infants with erythropoietin during their first two weeks of life: a randomized, placebo-controlled trial.
The Journal of pediatrics 1995;126(3):421-6.
1995: Shaddy R E; Bullock E A; Tani L Y; Orsmond G S; Hunter D D; Christensen R D
Epoetin alfa therapy in infants awaiting heart transplantation.
Archives of pediatrics & adolescent medicine 1995;149(3):322-5.
1994: Schibler K R; Li Y; Ohls R K; Nye N C; Durham M C; White W; Liechty K W; Le T; Christensen R D
Possible mechanisms accounting for the growth factor independence of hematopoietic progenitors from umbilical cord blood.
Blood 1994;84(11):3679-84.
1994: Christensen R D; Hunter D D; Ohls R K
Pilot study comparing recombinant erythropoietin alone with erythropoietin plus recombinant granulocyte-macrophage colony-stimulating factor for treatment of the anemia of prematurity.
Journal of perinatology : official journal of the California Perinatal Association 1994;14(2):110-3.
1994: Schibler K R; Ohls R K; Le T; Liechty K W; Christensen R D
Effect of recombinant stem cell factor on clonogenic maturation and cycle status of human fetal hematopoietic progenitors.
Pediatric research 1994;35(3):303-6.
1994: Ohls R K; Li Y; Trautman M S; Christensen R D
Erythropoietin production by macrophages from preterm infants: implications regarding the cause of the anemia of prematurity.
Pediatric research 1994;35(2):169-70.
1993: Ohls R K; Hunter D D; Christensen R D
A randomized, double-blind, placebo-controlled trial of recombinant erythropoietin in treatment of the anemia of bronchopulmonary dysplasia.
The Journal of pediatrics 1993;123(6):996-1000.
1993: Schibler K R; Liechty K W; White W L; Christensen R D
Production of granulocyte colony-stimulating factor in vitro by monocytes from preterm and term neonates.
Blood 1993;82(8):2478-84.
1993: Schibler K R; Trautman M S; Liechty K W; White W L; Rothstein G; Christensen R D
Diminished transcription of interleukin-8 by monocytes from preterm neonates.
Journal of leukocyte biology 1993;53(4):399-403.
1993: Liechty K W; Schibler K R; Ohls R K; Perkins S L; Christensen R D
The failure of newborn mice infected with Escherichia coli to accelerate neutrophil production correlates with their failure to increase transcripts for granulocyte colony-stimulating factor and interleukin-6.
Biology of the neonate 1993;64(5):331-40.
1992: Ohls R K; Wirkus P E; Christensen R D
Recombinant erythropoietin as treatment for the late hyporegenerative anemia of Rh hemolytic disease.
Pediatrics 1992;90(5):678-80.
1992: Schibler K R; Yang Y C; Christensen R D
Effect of interleukin-11 on cycling status and clonogenic maturation of fetal and adult hematopoietic progenitors.
Blood 1992;80(4):900-3.
1992: Christensen R D; Rothstein G
Erythropoietin affects the maturation pattern of fetal G-CSF-responsive progenitors.
American journal of hematology 1992;39(2):108-12.
1992: Schibler K R; Liechty K W; White W L; Rothstein G; Christensen R D
Defective production of interleukin-6 by monocytes: a possible mechanism underlying several host defense deficiencies of neonates.
Pediatric research 1992;31(1):18-21.
1991: Koenig J M; Hunter D D; Christensen R D
Neutropenia in donor (anemic) twins involved in the twin-twin transfusion syndrome.
Journal of perinatology : official journal of the California Perinatal Association 1991;11(4):355-8.
1991: Ohls R K; Christensen R D
Recombinant erythropoietin compared with erythrocyte transfusion in the treatment of anemia of prematurity.
The Journal of pediatrics 1991;119(5):781-8.
1991: Christensen R D; Liechty K W; Koenig J M; Schibler K R; Ohls R K
Administration of erythropoietin to newborn rats results in diminished neutrophil production.
Blood 1991;78(5):1241-6.
1991: Koenig J M; Christensen R D
The mechanism responsible for diminished neutrophil production in neonates delivered of women with pregnancy-induced hypertension.
American journal of obstetrics and gynecology 1991;165(2):467-73.
1991: Holbrook S T; Ohls R K; Schibler K R; Yang Y C; Christensen R D
Effect of interleukin-9 on clonogenic maturation and cell-cycle status of fetal and adult hematopoietic progenitors.
Blood 1991;77(10):2129-34.
1991: Christensen R D; Brown M S; Hall D C; Lassiter H A; Hill H R
Effect on neutrophil kinetics and serum opsonic capacity of intravenous administration of immune globulin to neonates with clinical signs of early-onset sepsis.
The Journal of pediatrics 1991;118(4 ( Pt 1)):606-14.
1991: Christensen R D
Recombinant erythropoietin.
Pediatrics in review / American Academy of Pediatrics 1991;12(8):244-8.
1991: Liechty K W; Koenig J M; Mitchell M D; Romero R; Christensen R D
Production of interleukin-6 by fetal and maternal cells in vivo during intraamniotic infection and in vitro after stimulation with interleukin-1.
Pediatric research 1991;29(1):1-4.
1991: Holbrook S T; Christensen R D
Hematopoietic growth factors.
Advances in pediatrics 1991;38():23-49.
1990: Liechty K W; Christensen R D
In vivo effect of interleukin-6 on cycling status of hematopoietic progenitors from adults and neonates.
Pediatric research 1990;28(4):323-6.
1990: Koenig J M; Christensen R D
Effect of erythropoietin on granulocytopoiesis: in vitro and in vivo studies in weanling rats.
Pediatric research 1990;27(6):583-7.
1990: Gardner J D; Liechty K W; Christensen R D
Effects of interleukin-6 on fetal hematopoietic progenitors.
Blood 1990;75(11):2150-5.
1990: Ohls R K; Liechty K W; Turner M C; Kimura R; Christensen R D
Erythroid "burst promoting" activity in serum of patients with the anemia of prematurity.
The Journal of pediatrics 1990;116(5):786-9.
1990: Lassiter H A; Speranza M J; Hall R T; Meade V; Christensen R D; Parker C J
Complement C3 deposition onto bacteria by neonatal serum is not enhanced after the infusion of intravenous immunoglobulin.
Journal of perinatology : official journal of the California Perinatal Association 1990;10(1):27-31.
1990: Viskochil D H; Carey J C; Glader B E; Rothstein G; Christensen R D
Congenital hypoplastic (Diamond-Blackfan) anemia in seven members of one kindred.
American journal of medical genetics 1990;35(2):251-6.
1990: Christensen R D
Granulocytopoiesis in the fetus and neonate.
Transfusion medicine reviews 1990;4(1):8-13.
1989: Christensen R D
Hematopoiesis in the fetus and neonate.
Pediatric research 1989;26(6):531-5.
1989: Hill H R; Shigeoka A O; Gonzales L A; Christensen R D
Intravenous immune globulin use in newborns.
The Journal of allergy and clinical immunology 1989;84(4 Pt 2):617-23; discussion 623-4.
1989: Ross M P; Christensen R D; Rothstein G; Koenig J M; Simmons M A; Noble N A; Kimura R E
A randomized trial to develop criteria for administering erythrocyte transfusions to anemic preterm infants 1 to 3 months of age.
Journal of perinatology : official journal of the California Perinatal Association 1989;9(3):246-53.
1989: Koenig J M; Christensen R D
Incidence, neutrophil kinetics, and natural history of neonatal neutropenia associated with maternal hypertension.
The New England journal of medicine 1989;321(9):557-62.
1989: Koenig J M; Ashton R D; De Vore G R; Christensen R D
Late hyporegenerative anemia in Rh hemolytic disease.
The Journal of pediatrics 1989;115(2):315-8.
1989: Christensen R D; Koenig J M; Viskochil D H; Rothstein G
Down-modulation of neutrophil production by erythropoietin in human hematopoietic clones.
Blood 1989;74(2):817-22.
1989: Adams R H; Lemons R S; Thangavelu M; Le Beau M M; Christensen R D
Interstitial deletion of chromosome 5, del(5q), in a newborn with Down syndrome and an unusual hematologic disorder.
American journal of hematology 1989;31(4):273-9.
1989: Christensen R D; Hardman T; Thornton J; Hill H R
A randomized, double-blind, placebo-controlled investigation of the safety of intravenous immune globulin administration to preterm neonates.
Journal of perinatology : official journal of the California Perinatal Association 1989;9(2):126-30.
1989: Christensen R D
Recombinant erythropoietic growth factors as an alternative to erythrocyte transfusion for patients with "anemia of prematurity".
Pediatrics 1989;83(5):793-6.
1989: Koenig J M; Christensen R D
Neutropenia and thrombocytopenia in infants with Rh hemolytic disease.
The Journal of pediatrics 1989;114(4 Pt 1):625-31.
1989: Lassiter H A; Christensen R D; Parker C J
Immunologic regulation of E. coli K1 by serum from neonatal rats is enhanced following intraperitoneal administration of human IgG.
The Journal of infectious diseases 1989;159(3):518-25.
1988: Holbrook S T; Christensen R D; Rothstein G
Erythroid colonies derived from fetal blood display different growth patterns from those derived from adult marrow.
Pediatric research 1988;24(5):605-8.
1988: Rothstein G; Rhondeau S M; Peters C A; Christensen R D; Lynch D; Gillis S
Stimulation of neutrophil production in CSF-1-responsive clones.
Blood 1988;72(3):898-902.
1988: Rhondeau S M; Christensen R D; Ross M P; Rothstein G; Simmons M A
Responsiveness to recombinant human erythropoietin of marrow erythroid progenitors from infants with the "anemia of prematurity".
The Journal of pediatrics 1988;112(6):935-40.
1988: Christensen R D; Leckman S; Saffle J R; Rothstein G
Haematopoietic progenitor cells in an infant who developed pancytopenia following an extensive burn.
Burns, including thermal injury 1988;14(2):101-6.
1988: Rider E D; Christensen R D; Hall D C; Rothstein G
Myeloperoxidase deficiency in neutrophils of neonates.
The Journal of pediatrics 1988;112(4):648-51.
1988: Redd H; Christensen R D; Fischer G W
Circulating and storage neutrophils in septic neonatal rats treated with immune globulin.
The Journal of infectious diseases 1988;157(4):705-12.
1988: Christensen R D
Developmental changes in pluripotent hematopoietic progenitors.
Early human development 1988;16(2-3):195-205.
1988: Lassiter H A; Christensen R D; Parker C; Rothstein G
Neutrophil-mediated killing, opsonization, and serum-mediated killing of Escherichia coli K1 by neonatal rats.
Biology of the neonate 1988;53(3):156-62.
1987: Rothstein G; Christensen R D; Nielsen B R
Kinetic evaluation of the pool sizes and proliferative response of neutrophils in bacterially challenged aging mice.
Blood 1987;70(6):1836-41.
1987: Harper T E; Christensen R D; Rothstein G
The effect of administration of immunoglobulin to newborn rats with Escherichia coli sepsis and meningitis.
Pediatric research 1987;22(4):455-60.
1987: Christensen R D
Intravenous immunoglobulin for prophylaxis or treatment of bacterial infection in neonates.
Journal of perinatology : official journal of the California Perinatal Association 1987;7(1):58-61.
1986: Christensen R D; Harper T E; Rothstein G
Granulocyte-macrophage progenitor cells in term and preterm neonates.
The Journal of pediatrics 1986;109(6):1047-51.
1986: Harper T E; Christensen R D; Rothstein G; Hill H R
Effect of intravenous immunoglobulin G on neutrophil kinetics during experimental group B streptococcal infection in neonatal rats.
Reviews of infectious diseases 1986;8 Suppl 4():S401-8.
1986: Christensen R D; Harper T E
Neutrophil kinetics in the fetus and neonate and the clinical utility of granulocyte transfusion in neonatal medicine.
Mead Johnson Symposium on Perinatal and Developmental Medicine 1986;(28):32-42.

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