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Matsuguma C, Takahashi K, Okada S, Tokitaka R, Hamano H, Kaneyasu H, Fujimoto Y, Hasegawa S. Clinical utility of gastric fluid cytokine levels in preterm infants for predicting histological chorioamnionitis. Cytokine 2024; 180:156642. [PMID: 38749278 DOI: 10.1016/j.cyto.2024.156642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 04/25/2024] [Accepted: 05/10/2024] [Indexed: 06/21/2024]
Abstract
BACKGROUND The risk of various complications, such as neonatal death, early onset sepsis, and chronic lung disease, is increased in infants born to mothers with chorioamnionitis (CAM). However, predicting the diagnosis of histological CAM (hCAM) in the early postnatal period is challenging for clinicians due to pathological considerations. Therefore, an early diagnostic tool for hCAM is needed. Gastric fluid at birth is considered a suitable biomarker for predicting the intrauterine environment because most of its components are from amniotic fluid, and the sampling technique is less invasive. This study aimed to evaluate the clinical utility of cytokines in the gastric fluid of preterm infants at birth as predictors of hCAM. METHODS We retrieved gastric fluid and serum from 21 preterm infants with a gestational age of ≤ 32 weeks within 1 h after birth and used cytometric bead array to measure the concentrations of interleukin (IL)-2, IL-4, IL-6, IL-10, tumor necrosis factor-alpha, and interferon-gamma. We compared the cytokine concentrations in the gastric fluid and serum of the preterm infants born to mothers with or without hCAM. RESULTS The gastric fluid, serum IL-6, and serum IL-10 concentrations were significantly higher in the hCAM group than that in the non-hCAM group. The best cutoff values for predicting hCAM was > 2,855 pg/mL and > 315 pg/mL for IL-6 in the gastric fluid and serum, respectively. Receiver operating characteristic curves showed that gastric fluid IL-6 concentrations correlated more strongly with the presence of hCAM than serum IL-6 concentrations. CONCLUSION IL-6 in the gastric fluid at birth may be a more promising biomarker for predicting the presence of hCAM than that in serum. IL-6 concentration analysis in the gastric fluid at birth might help to diagnose hCAM immediately after birth and improve the prognosis of preterm infants.
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Affiliation(s)
- Chie Matsuguma
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Kazumasa Takahashi
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan.
| | - Seigo Okada
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Rui Tokitaka
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Hiroki Hamano
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Hidenobu Kaneyasu
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Yousuke Fujimoto
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan
| | - Shunji Hasegawa
- Department of Pediatrics, Yamaguchi University Graduate School of Medicine, Ube, Japan
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Hossain A, Rahman S, Akter S, Jahan I, Dey SK, Mannan A, Shahidullah M. Assessment of iron status and red cell parameters in healthy term small for gestational age neonates at birth. Clin Exp Pediatr 2024; 67:221-223. [PMID: 38500237 PMCID: PMC10990652 DOI: 10.3345/cep.2023.01445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/27/2024] [Accepted: 03/07/2024] [Indexed: 03/20/2024] Open
Affiliation(s)
- Arif Hossain
- Department of Neonatology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
| | - Shorna Rahman
- Department of Neonatology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
| | - Shahana Akter
- Department of Neonatology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
| | - Ismat Jahan
- Department of Neonatology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
| | - Sanjoy Kumer Dey
- Department of Neonatology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
| | - Abdul Mannan
- Department of Neonatology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
| | - Mohammod Shahidullah
- Department of Neonatology, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh
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Karapati E, Sokou R, Iliodromiti Z, Tsaousi M, Sulaj A, Tsantes AG, Petropoulou C, Pouliakis A, Tsantes AE, Boutsikou T, Iacovidou N. Assessment of Hemostatic Profile in Neonates with Intrauterine Growth Restriction: A Systematic Review of Literature. Semin Thromb Hemost 2024; 50:169-181. [PMID: 36807290 DOI: 10.1055/s-0043-1762893] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Intrauterine growth restriction (IUGR) affects nearly 10 to 15% of pregnancies and is responsible for many short- and long-term adverse consequences, including hemostatic derangement. Both thrombotic and hemorrhagic events are described in the perinatal period in these neonates. The aim of this study was to systematically review the literature on the laboratory studies used to evaluate the hemostatic system of the IUGR small for gestational age neonate. We reviewed the current literature via PubMed and Scopus until September 2022. Following our inclusion/exclusion criteria, we finally included 60 studies in our review. Thrombocytopenia, characterized as hyporegenerative and a kinetic upshot of reduced platelet production due to in utero chronic hypoxia, was the main finding of most studies focusing on growth-restricted neonates, in most cases is mild and usually resolves spontaneously with the first 2 weeks of life. In regard to coagulation, growth-restricted newborns present with prolonged standard coagulation tests. Data regarding coagulation factors, fibrinolytic system, and anticoagulant proteins are scarce and conflicting, mainly due to confounding factors. As thromboelastography/rotational thromboelastometry (TEG/ROTEM) provides a more precise evaluation of the in vivo coagulation process compared with standard coagulation tests, its use in transfusion guidance is fundamental. Only one study regarding TEG/ROTEM was retrieved from this population, where no difference in ROTEM parameters compared with appropriate for gestational age neonates was found. Despite the laboratory aberrations, no correlation could be achieved with clinical manifestations of bleeding or thrombosis in the studies included. More studies are needed to assess hemostasis in IUGR neonates and guide targeted therapeutic interventions.
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Affiliation(s)
- Eleni Karapati
- Neonatal Department, School of Medicine, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece
| | - Rozeta Sokou
- Neonatal Department, School of Medicine, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece
- Neonatal Intensive Care Unit, "Agios Panteleimon" General Hospital of Nikaia, Piraeus, Greece
| | - Zoi Iliodromiti
- Neonatal Department, School of Medicine, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece
| | - Marina Tsaousi
- Neonatal Department, School of Medicine, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece
| | - Alma Sulaj
- Neonatal Department, School of Medicine, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece
| | - Andreas G Tsantes
- Laboratory of Haematology and Blood Bank Unit, School of Medicine, National and Kapodistrian University of Athens, "Attiko" Hospital, Athens, Greece
| | - Chrysa Petropoulou
- Neonatal Department, School of Medicine, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece
| | - Abraham Pouliakis
- Second Department of Pathology, University General Hospital Attikon, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Argirios E Tsantes
- Laboratory of Haematology and Blood Bank Unit, School of Medicine, National and Kapodistrian University of Athens, "Attiko" Hospital, Athens, Greece
| | - Theodora Boutsikou
- Neonatal Department, School of Medicine, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece
| | - Nicoletta Iacovidou
- Neonatal Department, School of Medicine, National and Kapodistrian University of Athens, Aretaieio Hospital, Athens, Greece
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Nagafuji M, Fujiyama S, Ishii R, Shime M, Kitatsu T, Hoshino Y, Kanai Y, Arai J, Miyazono Y, Takada H. Effect of maturation at birth on the clinical features of neonatal cow's milk protein allergy: A retrospective study. J Pediatr Gastroenterol Nutr 2024. [PMID: 38356291 DOI: 10.1002/jpn3.12157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/30/2023] [Accepted: 12/23/2023] [Indexed: 02/16/2024]
Abstract
Neonatal immune regulation transitions from fetal immunity and varies with maturation status, but its role in neonatal cow's milk protein allergy (CMPA) remains unknown. We studied the association between maturation status at birth and neonatal CMPA. Clinical and laboratory data of neonates presenting with CMPA symptoms were retrospectively collected from two tertiary hospitals. Patients were assessed according to gestational age at birth: preterm, late-preterm, and full-term. Fifty-five infants (26 females, 14 preterm, 15 late-preterm, and 26 full-term) were included; 44 were negative for milk-specific IgE. Neonatal CMPA was common during moderately premature periods. Preterm infants exhibited longer latency from initial CM exposure to disease onset, lower incidence of bloody stool, and absence of elevated monocyte counts. However, immunoreactivity to CM antigens was retained in all infants. Neonatal CMPA features varied with infant maturation status at birth. Our results improve the understanding of intestinal immunity development, fetal/neonatal immune regulation, and CMPA pathogenesis.
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Affiliation(s)
- Motomichi Nagafuji
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
| | - Satoshi Fujiyama
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
| | - Ryota Ishii
- Department of Biostatistics, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Michiru Shime
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
| | - Toshinori Kitatsu
- Department of Pediatric Allergy, Ibaraki Children's Hospital, Mito, Ibaraki, Japan
| | - Yusuke Hoshino
- Department of Neonatology, Ibaraki Children's Hospital, Mito, Ibaraki, Japan
| | - Yu Kanai
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
- Department of Child Health, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Junichi Arai
- Department of Neonatology, Ibaraki Children's Hospital, Mito, Ibaraki, Japan
| | - Yayoi Miyazono
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
- Department of Child Health, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hidetoshi Takada
- Department of Pediatrics, University of Tsukuba Hospital, Tsukuba, Ibaraki, Japan
- Department of Child Health, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Karapati E, Valsami S, Sokou R, Pouliakis A, Tsaousi M, Sulaj A, Iliodromiti Z, Iacovidou N, Boutsikou T. Hemostatic Profile of Intrauterine Growth-Restricted Neonates: Assessment with the Use of NATEM Assay in Cord Blood Samples. Diagnostics (Basel) 2024; 14:178. [PMID: 38248055 PMCID: PMC10814959 DOI: 10.3390/diagnostics14020178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/31/2023] [Accepted: 01/11/2024] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND Intrauterine growth restriction (IUGR) is associated with hemorrhagic and thrombotic complications during the perinatal period. Thrombocytopenia, platelet dysfunction, and prolonged standard coagulation tests are observed in this population. The aim of this study is to examine the hemostatic profile of IUGR neonates with the use of a non-activated assay (NATEM) in cord blood samples. METHODS During an 18 month period, a NATEM ROTEM assay was performed on cord blood samples of 101 IUGR neonates. A total of 189 appropriate for gestational age (AGA) neonates were used as a control group. The NATEM variables recorded include the following: clotting time (CT); clot formation time (CFT); clot amplitude at 5, 10, and 20 min (A5, A10, A20); α-angle (a°); maximum clot firmness (MCF); lysis index at 30 and 60 min (LI30, LI60); and maximum clot elasticity (MCE). RESULTS IUGR neonates demonstrate a hypocoagulable state, with lower A5, A10, A2, MCF, and MCE values when compared to AGA. Using multiple linear regression, we determined IUGR as an independent factor influencing all NATEM parameters (except CT and LI30) exhibiting a hypocoagulable and hypofibrinolytic profile. Platelet count was positively correlated with A5, A10, A20, MCF, alpha angle, and MCE, and negatively correlated with CFT. CONCLUSION IUGR neonates appear with lower clot strength and elasticity and prolonged clot kinetics, as illustrated by ROTEM variables.
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Affiliation(s)
- Eleni Karapati
- Neonatal Department, Aretaieio Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (R.S.); (M.T.); (A.S.); (Z.I.); (N.I.); (T.B.)
| | - Serena Valsami
- Hematology Laboratory Blood Bank, Aretaieio Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece;
| | - Rozeta Sokou
- Neonatal Department, Aretaieio Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (R.S.); (M.T.); (A.S.); (Z.I.); (N.I.); (T.B.)
| | - Abraham Pouliakis
- Second Department of Pathology, University General Hospital Attikon, School of Medicine, National and Kapodistrian University of Athens, 12462 Athens, Greece;
| | - Marina Tsaousi
- Neonatal Department, Aretaieio Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (R.S.); (M.T.); (A.S.); (Z.I.); (N.I.); (T.B.)
| | - Alma Sulaj
- Neonatal Department, Aretaieio Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (R.S.); (M.T.); (A.S.); (Z.I.); (N.I.); (T.B.)
| | - Zoi Iliodromiti
- Neonatal Department, Aretaieio Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (R.S.); (M.T.); (A.S.); (Z.I.); (N.I.); (T.B.)
| | - Nicoletta Iacovidou
- Neonatal Department, Aretaieio Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (R.S.); (M.T.); (A.S.); (Z.I.); (N.I.); (T.B.)
| | - Theodora Boutsikou
- Neonatal Department, Aretaieio Hospital, School of Medicine, National and Kapodistrian University of Athens, 11528 Athens, Greece; (R.S.); (M.T.); (A.S.); (Z.I.); (N.I.); (T.B.)
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Curative Effects of Dianthus orientalis against Paracetamol Triggered Oxidative Stress, Hepatic and Renal Injuries in Rabbit as an Experimental Model. SEPARATIONS 2023. [DOI: 10.3390/separations10030182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
The aim of the present study investigates the hepatoprotective, nephroprotective and hematopoietic and antioxidant effects of Dianthus orientalis leaves aqueous extract (DO.AQ) in rabbits intoxicated with paracetamol. Different experimental groups were formed, i.e., group N, group T, group ELD, group EMD, group EHD and group SM. The groups with leaves aqueous extract of Dianthus orientalis of 200 and 400 mg/kg body weight, i.e., group EMD and group EHD, showed remedial effects; however, a high dose extract significantly (p < 0.05) reduced the elevated serum levels of alanine transaminase ALT, aspartate transaminase AST and alkaline phosphatase ALP and renal related indices such as serum creatinine, urea and uric acid, and serum electrolytes such as Ca, Mg, P, Na and K, as well as the total count of RBC, WBC, platelets and hemoglobin Hb concentration, mean corpuscular hemoglobin MCH concentration and hematocrit HCT values. Additionally, the extract showed positive effects on the lipid profile, i.e., decreasing levels of cholesterol, triglycerides and LDL and increasing levels of HDL. The levels of thiobarbituric acid reactive substances TBARS, glutathione GSH and radical scavenging activity were also evaluated in liver and kidney homogenates. Paracetamol fed animals had high levels of thiobarbituric acid reactive substances and low levels of glutathione GSH and radical scavenging activity (RSA). Extract ingestion caused a significant increase in glutathione and radical scavenging activity RSA levels, while reducing the (TBARS) levels, showing that the extracts have antioxidant potentials. The antioxidant capacity of the Dianthus orientalis leaves aqueous extract at various dosages demonstrated an increased inhibition of DPPH, i.e., 2, 2-diphenyl-1-picrylehydrazyle free radical. The histological study of the liver and kidney supports the protective activity of Dianthus orientalis leaves aqueous extract against paracetamol intoxication with optimistic effects regarding oxidative stress condition and serum electrolytes balance.
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Zhang X, Zhang Y, Xu Y, Liu J, Fu M, Ding Y, Dai Y, Yuan E. Age- and sex-specific reference intervals for complete blood count parameters in capillary blood for Chinese neonates and infants: A prospective study. Clin Chim Acta 2023; 538:104-112. [PMID: 36400320 DOI: 10.1016/j.cca.2022.11.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/17/2022]
Abstract
BACKGROUND The reference intervals (RIs) of laboratory tests are essential for disease diagnosis, therapy monitoring, and health assessment. They are also significant for clinicians to discriminate between subjects with disease and healthy subjects. However, RIs for complete blood count (CBC) parameters in capillary blood for children are deficient. This study aimed to establish capillary blood RIs for blood cell parameters in neonates and infants from birth to 2 years of age in Zhengzhou. METHODS We prospectively collected a total of 1840 capillary blood specimens from healthy subjects from birth to 2 years of age. Hematology RIs were established by analyzing capillary blood sample data, and RIs and 90 % confidence intervals (CIs) were calculated according to Clinical and Laboratory Standards Institute (CLSI) C28-A3 guidelines. RESULTS RIs were established for hematological parameters of capillary blood in neonates and infants from birth to 2 years of age. The levels of almost all hematological parameters, except for the lymphocyte (LYMPH), platelet (PLT), and thrombocytocrit (PCT) parameters, peaked in the first month after birth and then decreased to lower levels within 6 months. There were significant sex differences in most erythrocyte-related parameters, with higher levels in males than in females. Erythrocyte-related parameters showed an increasing tendency with increasing age after the second month. Neutrophil (NEUT) levels were high on the third day of life, declined to a nadir in the first month, and then slowly increased with age. LYMPH levels were low at birth and began to increase after birth, peaked at approximately-six months of age and then gradually declined with age. PLT and PCT levels showed an increasing trend during the first month, while the other parameters showed a decreasing trend. All platelet-related and leukocyte-related parameters showed no significant difference with sex. CONCLUSION We provide comprehensive age- and sex-specific RIs, including RIs for neonates in Henan. Our study provides more comprehensive reference ranges for Child Health Hospital and children's medical institutions, which may facilitate preliminary screening, diagnosis, and therapy.
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Affiliation(s)
- Xuewei Zhang
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yurong Zhang
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yajuan Xu
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Junjie Liu
- Henan Human Sperm Bank, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Mengyu Fu
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanzi Ding
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanpeng Dai
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Enwu Yuan
- Department of Clinical Laboratory, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Zitouni S, Bouatrous E, Laabidi O, Boudrigua I, Chaouachi D, Saidani N, Kraiem I, Ayachi A, Abbes S, Mourali M, Menif S, Ouragini H. Tunisian Newborn's Cord Blood: Reference Values of Complete Blood Count and Hemoglobin Fractions. Am J Perinatol 2022; 39:1241-1247. [PMID: 33374024 DOI: 10.1055/s-0040-1722199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE This study was aimed to establish local reference values for hematological indices and hemoglobin (Hb) fractions in umbilical cord blood (UCB) for the northern population of Tunisia. STUDY DESIGN Our study included full-term newborns by vaginal deliveries. Hematological parameters were collected using an automated blood cell counter. The amounts of Hb fractions were measured by capillary electrophoresis of Hb. Statistical analysis was performed using R software. RESULTS A total of 328 cord blood samples were analyzed. Among them, 154 (male: 44.8%, female: 55.2%) were used to establish reference values. The normal reference values of complete blood count (CBC) and Hb fractions were calculated. Mean neonatal Hb was 14.75 ± 2.26 g/dL. Gestational age affects the expression of CBC values as red blood cell (RBC), Hb, hematocrit (Hct), mean corpuscular volume (MCV), white blood cell (WBC), and the Hb profile. Umbilical blood hemogram parameters and Hb profile are affected by the environment; higher in newborns from urban regions but not affected by gender ratio. CONCLUSION Reference ranges of normal CBC indices and Hb fractions have been successfully established in Tunisian neonates' UCB. Our data suggest reference values that could be useful for neonatal patients' laboratory results and clinical interpretation. KEY POINTS · Reference values for CBC and hemoglobin fractions have been established.. · Hematological reference for UCB is useful to identify hemolytic anemia cases early.. · UCB hematological values are influenced by gestational age and probably by environmental factors..
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Affiliation(s)
- Sana Zitouni
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia.,Department of Biology, Faculty of Sciences, Carthage University, Jarzouna, Tunisia
| | - Emna Bouatrous
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Ons Laabidi
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Imen Boudrigua
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Dorra Chaouachi
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Naima Saidani
- Department of Gyneco-Obstetrics, Faculty of Medicine of Tunis, University of Tunis El Manar, Hospital Habib Bougatfa, Tunis, Tunisia
| | - Imen Kraiem
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Amira Ayachi
- Department of Gyneco-Obstetrics, Faculty of Medicine of Tunis, University of Tunis El Manar, Hospital Habib Bougatfa, Tunis, Tunisia
| | - Salem Abbes
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Mechaal Mourali
- Department of Gyneco-Obstetrics, Faculty of Medicine of Tunis, University of Tunis El Manar, Hospital Habib Bougatfa, Tunis, Tunisia
| | - Samia Menif
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia
| | - Houyem Ouragini
- Laboratory of Molecular and Cellular Hematology, Pasteur Institute of Tunis, University of Tunis El Manar, Tunis, Tunisia
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Cui D, Hou Y, Feng L, Li G, Zhang C, Huang Y, Fan J, Hu Q. Capillary blood reference intervals for platelet parameters in healthy full-term neonates in China. BMC Pediatr 2020; 20:471. [PMID: 33038919 PMCID: PMC7547422 DOI: 10.1186/s12887-020-02373-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/06/2020] [Indexed: 12/02/2022] Open
Abstract
Background No consensus has been reached on capillary blood reference intervals for platelet parameters in full-term neonates. We aimed to establish neonatal capillary blood reference intervals for platelet parameters and evaluate influences of sex, gestational age and postnatal age on platelet parameters. Methods This study was a prospective investigation and implemented in 594 healthy full-term neonates from 12 to 84 h of age, using SYSMEX XN-9000 haematology automatic analyser by means of capillary blood. Reference intervals for platelet parameters were defined by an interval of 2.5th − 97.5th percentiles. Results Capillary reference interval for platelet count was (152–464) × 109/L. No significance was found between sex-divided reference intervals for platelet parameters. The values of platelet count changed minimally across gestational age (37–41 weeks) and postnatal age (12–84 h). Reference intervals for other platelet parameters were affected by these factors to a different extent. Conclusions We established capillary blood reference intervals for platelet parameters in the first days after birth of full-term neonates in China.
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Affiliation(s)
- Dongyan Cui
- Department of Paediatric Haematology and Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Yan Hou
- Department of Paediatrics, Xiangyang Central Hospital, Xiangyang, 441021, Hubei Province, People's Republic of China
| | - Ling Feng
- Department of Gynaecology and Obstetrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Guo Li
- Department of Clinical Laboratory, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Chi Zhang
- Department of Clinical Laboratory, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China
| | - Yanli Huang
- Department of Gynaecology and Obstetrics, Xiangyang Central Hospital, Xiangyang, 441021, Hubei Province, People's Republic of China
| | - Jiubo Fan
- Department of Clinical Laboratory, Xiangyang Central Hospital, Xiangyang, 441021, Hubei Province, People's Republic of China
| | - Qun Hu
- Department of Paediatric Haematology and Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, Hubei Province, People's Republic of China.
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Tiruneh T, Kiros T, Getu S. Hematological reference intervals among full-term newborns in Ethiopia: a cross-sectional study. BMC Pediatr 2020; 20:417. [PMID: 32878611 PMCID: PMC7465431 DOI: 10.1186/s12887-020-02320-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/25/2020] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Hematological reference intervals are used for medical decision tools for interpretation of numerical test results. Establishing of hematological interval among newborn babies is very important for the diagnosis of malignancy, anemia, bleeding disorders, and various infections. There are no locally established hematological reference intervals in Ethiopia. Thus, the aim of this study is to establish locally determined hematological reference interval among full-term newborns. METHODS A cross-sectional study was conducted from May 15 to July 30 2019 among 151 apparently healthy full-term newborns at Gondar University Hospital. About 3 ml of cord blood was obtained for analysis of Hematological parameters and determined by using Sysmex KX-21N (Sysmex Corporation Kobe, Japan) automated analyzer. Median, 2.5th and 97.5th percentile were computed. RESULT Male to female ratio was almost equal. All hematological parameter had no statistically significant difference between males and females. The delivery types were not influenced its hematological values. The reference interval of white blood cells, red blood cells, platelets, hemoglobin, hematocrit, mean cell volume, and mean cell hemoglobin were (7.64-22.16) x109/l, (3.69-5.47)x1012/l, (132.74-413.4) x109/l, (13.32-19.64) g/dl and (39.42-58.06)%, (91.6-113.22)fl, and (30.48-38.02 pg), respectively. CONCLUSIONS All hematological reference intervals were established from full-term newborns at University of Gondar hospital was different from other studies in Nigeria, Iraq, Pakistan, Nepal, Saudi Arabia and Iran. Therefore, own determined reference value is very important for the clinicians to correctly diagnosis the patients at health facility levels.
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Affiliation(s)
- Tegenaw Tiruneh
- College of Health Sciences, Department of Medical Laboratory Science, Debre Tabor University, Debre Tabor, Ethiopia
| | - Teklehaimanot Kiros
- College of Health Sciences, Department of Medical Laboratory Science, Debre Tabor University, Debre Tabor, Ethiopia
| | - Sisay Getu
- College of Health Sciences, Department of Medical Laboratory Science, Debre Tabor University, Debre Tabor, Ethiopia
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11
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Gassmann M, Mairbäurl H, Livshits L, Seide S, Hackbusch M, Malczyk M, Kraut S, Gassmann NN, Weissmann N, Muckenthaler MU. The increase in hemoglobin concentration with altitude varies among human populations. Ann N Y Acad Sci 2019; 1450:204-220. [PMID: 31257609 DOI: 10.1111/nyas.14136] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 05/02/2019] [Accepted: 05/16/2019] [Indexed: 02/06/2023]
Abstract
Decreased oxygen availability at high altitude requires physiological adjustments allowing for adequate tissue oxygenation. One such mechanism is a slow increase in the hemoglobin concentration ([Hb]) resulting in elevated [Hb] in high-altitude residents. Diagnosis of anemia at different altitudes requires reference values for [Hb]. Our aim was to establish such values based on published data of residents living at different altitudes by applying meta-analysis and multiple regressions. Results show that [Hb] is increased in all high-altitude residents. However, the magnitude of increase varies among the regions analyzed and among ethnic groups within a region. The highest increase was found in residents of the Andes (1 g/dL/1000 m), but this increment was smaller in all other regions of the world (0.6 g/dL/1000 m). While sufficient data exist for adult males and females showing that sex differences in [Hb] persist with altitude, data for infants, children, and pregnant women are incomplete preventing such analyses. Because WHO reference values were originally based on [Hb] of South American people, we conclude that individual reference values have to be defined for ethnic groups to reliably diagnose anemia and erythrocytosis in high-altitude residents. Future studies need to test their applicability for children of different ages and pregnant women.
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Affiliation(s)
- Max Gassmann
- Institute of Veterinary Physiology, Vetsuisse Faculty and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland.,Universidad Peruana Cayetano Heredia (UPCH), Lima, Peru
| | - Heimo Mairbäurl
- Translational Lung Research Center Heidelberg (TLRC), the German Center for Lung Research (DZL), Heidelberg, Germany
| | - Leonid Livshits
- Institute of Veterinary Physiology, Vetsuisse Faculty and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Svenja Seide
- Institute of Medical Biometry and Informatics (IMBI), University Hospital Heidelberg, Heidelberg, Germany
| | - Matthes Hackbusch
- Institute of Medical Biometry and Informatics (IMBI), University Hospital Heidelberg, Heidelberg, Germany
| | - Monika Malczyk
- Excellence Cluster Cardiopulmonary System, Justus-Liebig-University Giessen, University of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Heidelberg, Germany
| | - Simone Kraut
- Excellence Cluster Cardiopulmonary System, Justus-Liebig-University Giessen, University of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Heidelberg, Germany
| | - Norina N Gassmann
- Institute of Veterinary Physiology, Vetsuisse Faculty and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Norbert Weissmann
- Excellence Cluster Cardiopulmonary System, Justus-Liebig-University Giessen, University of Giessen and Marburg Lung Center, German Center for Lung Research (DZL), Heidelberg, Germany
| | - Martina U Muckenthaler
- Pediatric Hematology, Oncology and Immunology, University Hospital Heidelberg, Molecular Medicine Partnership Unit, University of Heidelberg, Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research, Heidelberg, Germany
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Rolim ACB, Lambert MA, Borges JPG, Abbas SA, Bordin JO, Langhi Junior DM, Chiba AK, Santos AMND. BLOOD CELLS PROFILE IN UMBILICAL CORD OF LATE PRETERM AND TERM NEWBORNS. ACTA ACUST UNITED AC 2019; 37:264-274. [PMID: 31621769 PMCID: PMC6868547 DOI: 10.1590/1984-0462/;2019;37;3;00008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 03/25/2018] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To describe the hematological profile in cord blood of late preterm and term newborns and compare blood indices according to sex, weight for gestational age and type of delivery. METHODS Cross-sectional study with late preterm and term newborns in a second-level maternity. Multiple gestation, chorioamnionitis, maternal or fetal hemorrhage, suspected congenital infection, 5-minute Apgar <6, congenital malformations, and Rh hemolytic disease were excluded. Percentiles 3, 5,10, 25, 50, 75, 90, 95 and 97 of blood indices were calculated for both groups. RESULTS 2,662 newborns were included in the sample, 51.1% males, 7.3% late preterms, 7.8% small for gestational age (SGA) and 81.2% adequate for gestational age (AGA). Mean gestational age was 35.6±1.9 and 39.3±1.0 weeks, respectively, for premature and term neonates. The erythrocytes indices and white blood cells increased from 34-36.9 to 37-41.9 weeks. Basophils and platelets remained constant during gestation. Premature neonates presented lower values of all blood cells, except for lymphocytes and eosinophils. SGA neonates presented higher values of hemoglobin, hematocrit and lower values of leukocytes, neutrophils, bands, segmented, eosinophils, monocytes and platelets. Male neonates presented similar values of erythrocytes and hemoglobin and lower leukocytes, neutrophils, segmented and platelets. Neonates delivered by C-section had lower values of red blood cells and platelets. Chronic or gestational hypertension induced lower number of platelets. CONCLUSIONS Blood cells increased during gestation, except for platelets and basophils. SGA neonates had higher hemoglobin and hematocrit values and lower leukocytes. Number of platelets was smaller in male SGAs, born by C-section and whose mothers had hypertension.
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Growth Responses of Preterm Pigs Fed Formulas with Different Protein Levels and Supplemented with Leucine or β-Hydroxyl β-Methylbutyrate. Nutrients 2018; 10:nu10050636. [PMID: 29783624 PMCID: PMC5986515 DOI: 10.3390/nu10050636] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 05/09/2018] [Accepted: 05/16/2018] [Indexed: 11/30/2022] Open
Abstract
Growth after preterm birth is an important determinant of long-term outcomes. Yet, many preterm infants suffer ex utero growth retardation. We evaluated effects of leucine and the metabolite, β-hydroxy β-methylbutyrate (HMB) on growth of preterm pigs, a previously-validated translational model for preterm infants. After 48 h of parenteral nutrition preterm pigs were fed for 6 to 7 days isocaloric formulas with different levels of protein (50 or 100 g/L) with leucine (10 g/L, 76 mM) or HMB (at 1.1 g/L, 4 mM) added to stimulate protein synthesis or with alanine (6.8 g/L; 76 mM) as the control. Rates of growth of pigs fed the low protein formula with alanine (3.4 ± 0.2% gain per day) or leucine (3.7 ± 0.2) exceeded that of pigs fed the high protein formula (2.8 ± 0.2, p = 0.02 for comparison with both low protein formulas; p = 0.01 compared with low protein + leucine). Supplementing the high protein formula with leucine or HMB did not increase growth relative to alanine (2.72 ± 0.20, 2.74 ± 0.27, and 2.52 ± 0.20, respectively). Small pigs (<700 g birth weight) grew slower during parenteral nutrition and had a more pronounced response to leucine. Females fed the high protein formulas grew faster than males, and particularly for small pigs (p < 0.05). Blood urea nitrogen values were lower for pigs fed the low versus the high protein formulas (p < 0.05). Leucine and HMB improved growth of preterm pigs fed low, but not high protein formulas, even after controlling for birth weight and sex, which independently correlated with growth rates. They offer an option to improve growth without increasing the amino acid load, with its attendant metabolic disadvantages.
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Fatheree NY, Liu Y, Taylor CM, Hoang TK, Cai C, Rahbar MH, Hessabi M, Ferris M, McMurtry V, Wong C, Vu T, Dancsak T, Wang T, Gleason W, Bandla V, Navarro F, Tran DQ, Rhoads JM. Lactobacillus reuteri for Infants with Colic: A Double-Blind, Placebo-Controlled, Randomized Clinical Trial. J Pediatr 2017; 191:170-178.e2. [PMID: 28969890 PMCID: PMC6336100 DOI: 10.1016/j.jpeds.2017.07.036] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 07/07/2017] [Accepted: 07/19/2017] [Indexed: 12/20/2022]
Abstract
OBJECTIVE To assess the safety of probiotic Lactobacillus reuteri strain Deutsche Sammlung von Mikroorganismen (DSM) 17938 with daily administration to healthy infants with colic and to determine the effect of L reuteri strain DSM 17938 on crying, fussing, inflammatory, immune, and microbiome variables. STUDY DESIGN We performed a controlled, double-blinded, phase 1 safety and tolerability trial in healthy breast-fed infants with colic, aged 3 weeks to 3 months, randomly assigned to L reuteri strain DSM 17938 (5 × 108 colony-forming units daily) or placebo for 42 days and followed for 134 days. RESULTS Of 117 screened infants, 20 were randomized to L reuteri strain DSM 17938 or placebo (sunflower oil) (in a 2:1 ratio) with 80% retention. Eleven of the 20 (55%) presented with low absolute neutrophil counts (<1500/mm3), which resolved in all subjects by day 176. L reuteri strain DSM 17938 produced no severe adverse events and did not significantly change crying time, plasma bicarbonate, or inflammatory biomarkers. Fecal calprotectin decreased rapidly in both groups. In the infants with dominant fecal gram negatives (Klebsiella, Proteus, and Veillonella), resolution of colic was associated with marked decreases in these organisms. CONCLUSIONS Daily administration of L reuteri strain DSM 17938 appears to be safe in newborn infants with colic, including those with neutropenia, which frequently coexists. A placebo response of 66% suggests that many infants with colic will have resolution within 3 weeks. TRIAL REGISTRATION ClinicalTrials.gov: NCT01849991.
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Affiliation(s)
- Nicole Y Fatheree
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX
| | - Yuying Liu
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX
| | - Christopher M Taylor
- Department of Microbiology, Immunology & Parasitology Louisiana State University Health Sciences Center, New Orleans, LA
| | - Thomas K Hoang
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX
| | - Chunyan Cai
- Division of Clinical and Translational Sciences, Department of Internal Medicine, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX; Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), the University of Texas Health Science Center at Houston, Houston, TX
| | - Mohammad H Rahbar
- Division of Clinical and Translational Sciences, Department of Internal Medicine, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX; Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), the University of Texas Health Science Center at Houston, Houston, TX; Division of Epidemiology, Human Genetics, and Environmental Sciences (EHGES), University of Texas School of Public Health at Houston, TX
| | - Manouchehr Hessabi
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), the University of Texas Health Science Center at Houston, Houston, TX
| | - Michael Ferris
- Department of Microbiology, Immunology & Parasitology Louisiana State University Health Sciences Center, New Orleans, LA
| | - Valarie McMurtry
- Department of Microbiology, Immunology & Parasitology Louisiana State University Health Sciences Center, New Orleans, LA
| | - Christine Wong
- Memorial Hermann Hospital Investigational Drug Services, Memorial Hermann Hospital, Houston, TX
| | - Ta Vu
- Memorial Hermann Hospital Investigational Drug Services, Memorial Hermann Hospital, Houston, TX
| | - Theresa Dancsak
- Clinical Research Center, Memorial Hermann Hospital, Houston, TX
| | - Ting Wang
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX
| | - Wallace Gleason
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX
| | - Vinay Bandla
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX
| | - Fernando Navarro
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX
| | - Dat Q Tran
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX
| | - J Marc Rhoads
- Department of Pediatrics, the University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX.
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15
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Roudil P, Vasselon C, Trombert-Paviot B, Berger C, Patural H. Blood parameters of preterm neonates: postnatal evolution according to gestational age. Int J Lab Hematol 2017; 39:317-328. [PMID: 28422440 DOI: 10.1111/ijlh.12629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 12/06/2016] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The blood count provides qualitative and quantitative essential information on bloodlines. Reference hematologic parameters have been established in children and neonates, but few data are available regarding the premature population during the first month of life. The main objective of this study was to establish normative values for blood parameters for premature infants born between 26 and <37 weeks of gestation, during the first month of life, taking into account gestational and postnatal age and treatments that can impact the threshold values. METHODS A single-center retrospective study was conducted based on the clinical and laboratory data of preterm infants born between January 1, 2012 and December 31, 2013 and hospitalized in the intensive care, neonatal, and maternity units of University Hospital of Saint Etienne (France). Data were collected by crossing the PMSI database (date of birth and gestational age), the administrative patient database (IPP), and the pre-analytical laboratory database. Anthropometric and clinical data were extracted for both mother and child. The samples were all made from central or peripheral venous blood. All blood parameters were taken into account. RESULTS The degree of prematurity is a factor greatly influencing the values of the blood parameters at birth. All three blood lines increase in proportion to gestational age. We were able to highlight for some blood parameters specific kinetic profiles according to gestational age. CONCLUSION Blood parameters of preterm neonates depend on both the degree of prematurity, postnatal age, and perinatal treatments. A good knowledge of these physiological variations may help target transfusion or therapeutic indications in everyday practice.
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Affiliation(s)
- P Roudil
- Neonatal and Pediatric Critical Care, Mother and Baby Unit, North Hospital, Saint-Etienne University Hospital Center, Saint-Etienne, France
| | - C Vasselon
- Hematology Laboratory, North Hospital, Saint-Etienne University Hospital Center, Saint-Etienne, France
| | - B Trombert-Paviot
- Public Health Department, North Hospital, Saint-Etienne University Hospital Center, Saint-Etienne, France
| | - C Berger
- Pediatric Hematology Unit, North Hospital, Saint-Etienne University Hospital Center, Saint-Etienne, France
| | - H Patural
- Neonatal and Pediatric Critical Care, Mother and Baby Unit, North Hospital, Saint-Etienne University Hospital Center, Saint-Etienne, France.,EA SNA-Epis 4607, Jean Monnet University of Saint-Etienne, Saint-Etienne, France
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Fustolo-Gunnink SF, Vlug RD, Smits-Wintjens VEHJ, Heckman EJ, te Pas AB, Fijnvandraat K, Lopriore E. Early-Onset Thrombocytopenia in Small-For-Gestational-Age Neonates: A Retrospective Cohort Study. PLoS One 2016; 11:e0154853. [PMID: 27177157 PMCID: PMC4866768 DOI: 10.1371/journal.pone.0154853] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 04/20/2016] [Indexed: 11/18/2022] Open
Abstract
Thrombocytopenia is a common finding in small for gestational age (SGA) neonates and is thought to result from a unique pathophysiologic mechanism related to chronic intrauterine hypoxia. Our objective was to estimate the incidence and severity of early-onset thrombocytopenia in SGA neonates, and to identify risk factors for thrombocytopenia. We performed a retrospective cohort study of all consecutive SGA neonates admitted to our ward and a control group of appropriate for gestational age (AGA) neonates matched for gestational age at birth. Main outcome measures were incidence and severity of thrombocytopenia, hematological and clinical risk factors for thrombocytopenia, and bleeding. A total of 330 SGA and 330 AGA neonates were included, with a mean gestational age at birth of 32.9 ± 4 weeks. Thrombocytopenia (<150x109/L) was found in 53% (176/329) of SGA neonates and 20% (66/330) of AGA neonates (relative risk (RR) 2.7, 95% confidence interval (CI) [2.1, 3.4]). Severe thrombocytopenia (21-50x109/L) occurred in 25 neonates (8%) in the SGA and 2 neonates (1%) in the AGA group (RR 12.5, 95% CI [3.0, 52.5]). Platelet counts <20x109/L were not recorded. Within the SGA group, lower gestational age at birth (p = <0.01) and erythroblastosis (p<0.01) were independently associated with a decrease in platelet count. Platelet count was positively correlated with birth weight centiles. In conclusion, early-onset thrombocytopenia is present in over 50% of SGA neonates and occurs 2.7 times as often as in AGA neonates. Thrombocytopenia is seldom severe and is independently associated with lower gestational age at birth and erythroblastosis.
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Affiliation(s)
- S. F. Fustolo-Gunnink
- Sanquin Blood Supply, Clinical Transfusion Research, Leiden, Zuid-Holland, The Netherlands
- Academic Medical Center, Pediatric hematology, Amsterdam, Noord-Holland, The Netherlands
- * E-mail:
| | - R. D. Vlug
- Division of Neonatology, Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - V. E. H. J. Smits-Wintjens
- Division of Neonatology, Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - E. J. Heckman
- Division of Neonatology, Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - A. B. te Pas
- Division of Neonatology, Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - K. Fijnvandraat
- Academic Medical Center, Pediatric hematology, Amsterdam, Noord-Holland, The Netherlands
| | - E. Lopriore
- Division of Neonatology, Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
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Christensen RD, Yoder BA, Baer VL, Snow GL, Butler A. Early-Onset Neutropenia in Small-for-Gestational-Age Infants. Pediatrics 2015; 136:e1259-67. [PMID: 26459642 DOI: 10.1542/peds.2015-1638] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/05/2015] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Early neutropenia is more common in small for gestational age (SGA) neonates (birth weight <10th percentile) than in appropriately grown neonates. However, several aspects of this variety of neutropenia are unknown, including the duration, kinetic mechanism, and outcomes. METHODS Using 10 years of multihospital records, we studied SGA neonates who, during the first week after birth, had neutrophil counts <1000/μL. RESULTS This degree of neutropenia was more common in SGA neonates (6%, 207/3650) than in non-SGA matched controls (1%, 46/3650; P < .001). Neutrophil counts stayed below the lower reference interval for 7 days. Ratios of immature to total neutrophils were within the reference interval, suggesting reduced neutrophil production, not accelerated neutrophil use or destruction. Increased nucleated red cells at birth correlated with decreased neutrophils (P < .001). Neutropenia was not independently associated with maternal hypertensive disorders, over and above the effect of SGA. Of 201 neutropenic SGA neonates, 129 (64%) also had thrombocytopenia. Sixteen percent of neutropenic neonates were treated with recombinant granulocyte colony-stimulating factor (rG-CSF) or intravenous immunoglobulin (IVIG), with no reduction in late-onset sepsis or necrotizing enterocolitis (NEC). Regression analysis showed that neutropenia (but not thrombocytopenia in the absence of neutropenia) was independently associated with increased odds of developing necrotizing enterocolitis (odds ratio 4.01, 90% confidence interval 2.08 to 7.35, P < .001). CONCLUSIONS Neutropenia of SGA is a condition of 1-week duration. It is more closely associated with SGA than maternal hypertension (likely owing to neutrophil hypoproduction associated with intrauterine hypoxia), often accompanied by thrombocytopenia, not obviously improved by rG-CSF or IVIG, and associated with an increased risk for NEC.
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Affiliation(s)
- Robert D Christensen
- Women and Newborn's Clinical Program, Intermountain Healthcare, Division of Hematology/Oncology, and Division of Neonatology, Department of Pediatrics, University of Utah School of Medicine and Primary Children's Hospital, Salt Lake City, Utah; and
| | - Bradley A Yoder
- Women and Newborn's Clinical Program, Intermountain Healthcare, Division of Neonatology, Department of Pediatrics, University of Utah School of Medicine and Primary Children's Hospital, Salt Lake City, Utah; and
| | - Vickie L Baer
- Women and Newborn's Clinical Program, Intermountain Healthcare
| | - Gregory L Snow
- Statistical Data Center, LDS Hospital, Salt Lake City, Utah
| | - Allison Butler
- Statistical Data Center, LDS Hospital, Salt Lake City, Utah
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Giraud A, Lavocat MP, Cremillieux C, Patural H, Thouvenin S, David A, Perignon JL, Stephan JL. Déficit complet en adénosine-désaminase-1 : une erreur innée du métabolisme responsable d’un déficit immunitaire combiné sévère. Arch Pediatr 2015; 22:630-5. [DOI: 10.1016/j.arcped.2015.02.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Accepted: 02/25/2015] [Indexed: 11/27/2022]
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Lee J, Kim SY, Lee W, Han K, Sung IK. Cell population data in neonates: differences by age group and associations with perinatal factors. Int J Lab Hematol 2015; 37:606-12. [PMID: 25944264 DOI: 10.1111/ijlh.12366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 02/25/2015] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Cell population data (CPD) describe physical parameters of white blood cell subpopulations and are reported to be of some value in the diagnosis of sepsis in neonates. Before using the CPD for diagnosing sepsis, the baseline features of the CPD distribution in healthy neonates should be clarified. The aim of this study was to compare the CPD distributions of healthy neonates and other age groups and to identify perinatal factors that are associated with changes in the CPD distribution of healthy neonates. METHODS The CPD distribution of 69 samples from term neonates was compared with adolescents and adults. The CPD distribution of 163 samples from healthy neonates was analyzed in association with perinatal factors, including gestational age, chronologic age, birthweight, delivery mode, premature rupture of membranes, diabetes, and pregnancy-induced hypertension. RESULTS The CPD distribution for term neonates was significantly different from those in adolescents and adults. The mean lymphocyte volume showed a negative correlation with gestational age at birth (r = -0.305; P < 0.01). The mean neutrophil volume was smaller in the cesarean section group than in the normal delivery group. The small for gestational age (SGA) group had smaller mean neutrophil volume and mean monocyte volume than the appropriate for gestational age group. CONCLUSION The CPD distribution of healthy neonates differed from those of adolescents or adults, and the differences were associated with gestational age, delivery mode, and being SGA.
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Affiliation(s)
- J Lee
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - S Y Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - W Lee
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - K Han
- Department of Laboratory Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - I K Sung
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Grecu DS, Paulescu E. Quality assurance in the laboratory testing process: Indirect estimation of the reference intervals for platelet parameters in neonates. Clin Biochem 2014; 47:33-7. [DOI: 10.1016/j.clinbiochem.2014.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 06/30/2014] [Accepted: 07/03/2014] [Indexed: 01/18/2023]
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Wiland EL, Sandhaus LM, Georgievskaya Z, Hoyen CM, O'Riordan MA, Nock ML. Adult and child automated immature granulocyte norms are inappropriate for evaluating early-onset sepsis in newborns. Acta Paediatr 2014; 103:494-7. [PMID: 24451038 DOI: 10.1111/apa.12563] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Revised: 11/27/2013] [Accepted: 01/16/2014] [Indexed: 12/16/2022]
Abstract
AIM Automated haematology analysers are increasingly being used. Normal ranges for automated immature granulocyte counts (IG%) are described in adults and children as <1%, but are not reported for newborns, who often have complete blood count with differential in evaluation for early-onset sepsis. Therefore, this study aimed to describe IG% during the first 48 hours of life (HOL) in newborns and determine the clinical factors affecting IG%. METHODS We carried out retrospective chart reviews for newborns ≥35 weeks gestational age with one or more complete blood count with differential in the first 48 HOL. Clinical history and automated haematology results were reviewed. RESULTS Forty-seven of 215 subjects had two or more complete blood counts within 48 h. In the first 48 HOL, IG% ranged from 0 to 8.4% (95th percentile 5.2%). At <12 h, 70% of samples had IG% >1%. IG% appears to decrease over time. Earlier hour of life and higher birth weight were independently associated with higher IG%. CONCLUSION Immature granulocyte counts in newborns appeared to be higher than reported for other age groups. Use of adult and child norms for IG% would not be appropriate for newborns being evaluated for early-onset sepsis.
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Affiliation(s)
- Emily L. Wiland
- Department of Paediatrics; Cincinnati Children's Hospital Medical Center; Cincinnati OH USA
| | - Linda M. Sandhaus
- Department of Pathology; University Hospitals Case Medical Center; Cleveland OH USA
| | - Zhanna Georgievskaya
- Department of Pathology; University Hospitals Case Medical Center; Cleveland OH USA
| | - Claudia M. Hoyen
- Department of Paediatrics; Rainbow Babies and Children's Hospital; Cleveland OH USA
| | - Mary Ann O'Riordan
- Department of Paediatrics; Rainbow Babies and Children's Hospital; Cleveland OH USA
| | - Mary L. Nock
- Department of Paediatrics; Rainbow Babies and Children's Hospital; Cleveland OH USA
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23
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Adewumi A, Titilope A A, Akinsegun AA, Abidoye G, Ebele U, Sulaimon AA. Cord blood full blood count parameters in Lagos, Nigeria. Pan Afr Med J 2014; 17:192. [PMID: 25396018 PMCID: PMC4228999 DOI: 10.11604/pamj.2014.17.192.3680] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 02/15/2014] [Indexed: 12/30/2022] Open
Abstract
Introduction Full blood count (FBC), one of the most frequently requested for laboratory investigations, is a simple, fast and cheap test and is a reliable indicator of health. Due to its usefulness in the assessment of health status of individuals, its parameters in cord blood, a major source of haemopoietic stem cell transplantation and an ideal source for laboratory investigations for newborns were determined to provide a useful guide to local neonatologists and stem cell transplant physicians. Methods Three millilitres of umbilical cord blood was collected from 130 normal birth weight newborns (69 males and 61 females) whose cord were clamped immediately after delivery, at a teaching hospital in Lagos, Nigeria and full blood count parameters were determined using Sysmex autoanalyzer, model KX-21N. Consented mothers of the newborns were selected based on, age between 18 and 45 years; uneventful pregnancy and delivery and haemoglobin (Hb) concentration ≥ 10 g/dL. Results There were no statistical gender differences in the mean values of Hb concentrations (M = 13.27 ±1.60 g/dL; F = 13.32±1.61g/dL; p = 0.93), total white cell count (M = 3.16±5.43 × 109/L; F = 13.07±4.98 × 109/L; p= 0.92), platelet count (M= 223.64± 64.21 × 109/L; F = 226.69±80.83 × 109/L; p = 0.81) and other parameters. Conclusion Mean values of full blood count parameters obtained in this study are comparable to reports from other studies in developing countries and could be a useful guide for neonatologists and stem cell transplant physicians in our geographical location.
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Affiliation(s)
- Adediran Adewumi
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos
| | - Adeyemo Titilope A
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos
| | - Akinbami A Akinsegun
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos
| | - Gbadegesin Abidoye
- Department of Obstetrics and Gynaecology, Lagos State University College of Medicine, Ikeja, Nigeria
| | - Uche Ebele
- Department of Haematology and Blood Transfusion, Lagos State University College of Medicine, Ikeja, Nigeria
| | - Akanmu A Sulaimon
- Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos
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24
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Grecu DS, Paulescu E. Quality in post-analytical phase: indirect reference intervals for erythrocyte parameters of neonates. Clin Biochem 2013; 46:617-21. [PMID: 23458859 DOI: 10.1016/j.clinbiochem.2013.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 02/18/2013] [Accepted: 02/20/2013] [Indexed: 10/27/2022]
Abstract
OBJECTIVES This study aims to gain an estimation of the reference intervals for erythrocyte parameters of neonates in the venous blood, in their first day of life, aiming to achieve quality assurance in post-analytical phase according to the requirement of the ISO standard 15189:2007: Medical laboratories-particular requirements for quality and competence. DESIGN AND METHODS The study was performed on a group of 845 subjects selected from the laboratory database. The blood test was performed with the Nihon Celltac F automatic hematology analyzer. In order to find the reference interval, the Hoffmann indirect method was used to process the study group. RESULTS The results give the reference intervals for red blood cell (RBC=3.45-5.26×10(6)/μL), hemoglobin (HGB=12.5-19.48g/dL), hematocrit (HCT=37.18-55.65%), mean cell volume (MCV=99.63-111.92fL), mean corpuscular hemoglobin (MCH=33.55-39.28pg) and mean corpuscular hemoglobin concentration (MCHC=32.33-36.23g/dL), along with the corresponding confidence intervals. CONCLUSIONS Neonates are a special category of population to which the application of the direct method for determining the reference intervals is difficult and raises ethical issues. Thus, the indirect method is a reasonable alternative. The reported approach is easy to apply and accessible to any laboratory.
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Affiliation(s)
- Daniela Stefania Grecu
- University of Medicine and Pharmacy Victor Babes Timisoara, Biochemistry and Pharmacology Department, 2, Eftimie Murgu Square, 300041 Timisoara, Romania
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Tonbul A, Tayman C, Catal F, Kara S, Tatli MM. Red cell distribution width (RDW) in the newborn: normative data. J Clin Lab Anal 2012; 25:422-5. [PMID: 22086796 DOI: 10.1002/jcla.20496] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
AIM To evaluate the normal range of red blood cell distribution width (RDW) in term and preterm newborns dependent on gestational age. MATERIAL AND METHODS A total of 1,594 preterm and term neonates were admitted to our neonatology department. Infants were divided into two groups according to their gestational age. Group 1 consisted of infants with ≤34 weeks of gestation; group 2 consisted of infants with ≥35 weeks of gestation. Infants in Groups I and II were subdivided according to their gestational age. Gestational age, birth weight, sex, hemoglobin and hematocrit, MCV levels of all newborns were recorded, and RDW was compared between the groups. RESULTS A total of 1,594 newbornswere enrolled in the study. Group 1 (≤34 weeks) consisted of 725 newborns and Group 2 (≥35 weeks) consisted of 869 newborns. The mean normal range of RDW in Group 1 was 17.8 ± 2.1 and of group II was 16.7 ± 1.6 (P<0.05). The normal range for RDW values at 32-34 weeks was higher than at 35-36 gestational weeks, and at 37-42 weeks (P = 0.002 and 0.003). CONCLUSION RDW values at ≤34 weeks in newborns are higher than at ≥35 weeks. This may be useful in the differential diagnosis of neonatal hematologic diseases together with other red cell parameters.
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Affiliation(s)
- Alparslan Tonbul
- Department of Neonatology, Fatih University Faculty of Medicine, Ankara, Turkey
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26
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Abstract
PURPOSE The current study objective was to compare blood platelet indices in full-term small-for-gestational-age newborns (SGA) and full-term appropriate-for-gestational-age newborns (AGA). MATERIALS/METHODS We introduced to our study 61 SGA newborns (31 females and 30 males) and 70 eutrophic infants (32 females and 38 males). The SGA newborns were divided into two groups: those weighing less than the 5th centile: 35 infants (16 females and 19 males) and those between the 5th and 10th centiles: 26 infants (15 females and 11 males). Platelet indices were estimated in blood samples collected from the umbilical artery. RESULTS SGA demonstrated a decreased count of blood platelets (238×103/μ) as compared with AGA (286×103/μL), p=0.0001. Platelet hematocrit (PTC) also showed differences in both groups (SGA=0.19% vs. AGA=0.22%; p=0.0005). Mean platelet volume (MPV) was higher in SGA (8.25fl) as compared with AGA (7.84fl); p=0.008. Large platelet count (LPLT) was higher in AGA 6.26% vs. SGA=4.75%; p=0.01. Platelet distribution width (PDW) was found to be nearly the same (SGA=47%, AGA=46%). PDW was higher in SGA newborns < 5th centile (43%) as compared with SGA infants between the 5th and 10th centiles (52%); p=0.008. CONCLUSIONS A decreased blood platelet count, platelet hematocrit and large metabolically active platelet count, which in addition to reduced synthesis and excessive consumption of coagulation factors in states of hiperclotting is characteristic of IUGR, enhances the possibility of bleeding complications and increases the risk of infections. From a clinical point of view, it is important to take into consideration the degree of intrauterine hypotrophy during the evaluation of hemostatic disorders.
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Nakagawa N, Imai K, Kanegane H, Sato H, Yamada M, Kondoh K, Okada S, Kobayashi M, Agematsu K, Takada H, Mitsuiki N, Oshima K, Ohara O, Suri D, Rawat A, Singh S, Pan-Hammarström Q, Hammarström L, Reichenbach J, Seger R, Ariga T, Hara T, Miyawaki T, Nonoyama S. Quantification of κ-deleting recombination excision circles in Guthrie cards for the identification of early B-cell maturation defects. J Allergy Clin Immunol 2011; 128:223-225.e2. [PMID: 21397315 DOI: 10.1016/j.jaci.2011.01.052] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Revised: 01/21/2011] [Accepted: 01/21/2011] [Indexed: 11/30/2022]
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Amarilyo G, Oren A, Mimouni FB, Ochshorn Y, Deutsch V, Mandel D. Increased cord serum inflammatory markers in small-for-gestational-age neonates. J Perinatol 2011; 31:30-2. [PMID: 20410909 DOI: 10.1038/jp.2010.53] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE The pathological picture in ischemic tissue injury shares features with the inflammatory response. Hypoxia-mediated induction of interleukin-6 (IL-6) could set in motion the mechanisms limiting inflammation in ischemia. Intrauterine growth restriction (IUGR) represents a human model of chronic fetal hypoxia. The purpose of this study was a first-time exploration to determine whether cord blood obtained at the delivery of small-for-gestational-age (SGA) infants has increased concentrations of inflammatory markers. STUDY DESIGN Cord blood was collected from 20 SGA (term and near-term) infants and 20 appropriate-for-gestational-age (AGA) controls. Infants exposed to maternal smoking, diabetes, maternal chronic diseases, or alcohol or drug use were excluded. Both groups had Apgar score ≥7 at 1 min with a normal cord pH (>7.25). Cord-serum cytokines and thrombopoietin (TPO) levels were measured by enzyme linked immunosorbent assay. C-reactive protein (CRP) was measured using a turbidometric immunoassay. RESULT SGA infants had a significantly smaller birth weight than AGA controls, with a smaller gestation age by 1 week. There were significant elevations in IL-6, tumor necrosis factor (TNF-α), CRP and TPO in the SGA compared with the AGA group, which persisted in multiple regression analysis even after gestational age was taken into account. CONCLUSION As hypothesized, significant increases in the cord blood concentrations of known inflammatory markers were found in SGA infants compared with the controls.
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Affiliation(s)
- G Amarilyo
- Department of Neonatology, Lis Maternity Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
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Mwinga K, Vermund SH, Chen YQ, Mwatha A, Read JS, Urassa W, Carpenetti N, Valentine M, Goldenberg RL. Selected hematologic and biochemical measurements in African HIV-infected and uninfected pregnant women and their infants: the HIV Prevention Trials Network 024 protocol. BMC Pediatr 2009; 9:49. [PMID: 19664210 PMCID: PMC2746190 DOI: 10.1186/1471-2431-9-49] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2008] [Accepted: 08/07/2009] [Indexed: 12/02/2022] Open
Abstract
Background Reference values for hematological and biochemical assays in pregnant women and in newborn infants are based primarily on Caucasian populations. Normative data are limited for populations in sub-Saharan Africa, especially comparing women with and without HIV infection, and comparing infants with and without HIV infection or HIV exposure. Methods We determined HIV status and selected hematological and biochemical measurements in women at 20–24 weeks and at 36 weeks gestation, and in infants at birth and 4–6 weeks of age. All were recruited within a randomized clinical trial of antibiotics to prevent chorioamnionitis-associated mother-to-child transmission of HIV (HPTN024). We report nearly complete laboratory data on 2,292 HIV-infected and 367 HIV-uninfected pregnant African women who were representative of the public clinics from which the women were recruited. Nearly all the HIV-infected mothers received nevirapine prophylaxis at the time of labor, as did their infants after birth (always within 72 hours of birth, but typically within just a few hours at the four study sites in Malawi (2 sites), Tanzania, and Zambia. Results HIV-infected pregnant women had lower red blood cell counts, hemoglobin, hematocrit, and white blood cell counts than HIV-uninfected women. Platelet and monocyte counts were higher among HIV-infected women at both time points. At the 4–6-week visit, HIV-infected infants had lower hemoglobin, hematocrit and white blood cell counts than uninfected infants. Platelet counts were lower in HIV-infected infants than HIV-uninfected infants, both at birth and at 4–6 weeks of age. At 4–6 weeks, HIV-infected infants had higher alanine aminotransferase measures than uninfected infants. Conclusion Normative data in pregnant African women and their newborn infants are needed to guide the large-scale HIV care and treatment programs being scaled up throughout the continent. These laboratory measures will help interpret clinical data and assist in patient monitoring in a sub-Saharan Africa context. Trial Registration nicalTrials.gov Identifier NCT00021671.
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Affiliation(s)
- Kasonde Mwinga
- Department of Paediatrics of the University Teaching Hospital and the University of Zambia School of Medicine, and the Centre for Infectious Disease Research in Zambia, Lusaka, Zambia.
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Abstract
Hematologic values in neonates differ significantly from those in older children and adults. Quantitative and qualitative differences are present as a reflection of the developmental changes during fetal hematopoiesis and, so, correlate with gestational age. At birth, the hemoglobin, mean corpuscular volume, and WBC counts of term newborns are significantly higher than those of older children and adults, and in preterm neonates the differences are even more pronounced. This review explores these differences and the major factors that account for them from the hematology laboratory standpoint. After a discussion of the developmental hematopoiesis and normal hematologic values in term and preterm neonates, important preanalytic factors, such as limited blood availability, effect of sampling site, and violent crying, and analytic interferences are examined. Finally, the review addresses resulting challenges in interpretation of hematologic test results in term and preterm neonates, especially issues surrounding neonatal reference intervals and critical value reporting, and suggests possible solutions.
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Kim JP, Lee YH, Lee YA, Kim YD. A comparison of the kinetics of nucleated cells and CD34+ cells in neonatal peripheral blood and cord blood. Biol Blood Marrow Transplant 2007; 13:478-85. [PMID: 17382254 DOI: 10.1016/j.bbmt.2006.12.446] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2006] [Accepted: 12/12/2006] [Indexed: 10/23/2022]
Abstract
We investigated the kinetics of nucleated cells and CD34+ cells to determine the differences between cord blood (CB) and neonatal peripheral blood (NB). The correlation coefficient between white blood cell (WBC) counts and neutrophil counts was statistically significant for CB and NB at 0, 24, and 48 hours postnatally. There were no differences in the absolute counts of lymphocytes, CD3+ cells, and CD19+ cells; however, the CD16/56+ cell counts for CB were significantly decreased 48 hours postnatally (P = .011). The number of GM-CFU counts (P = .02) and CD34(+) cells (P = .049) as well as CD34+CXCR4+ cells (P = .002), CD34+CD49d+ cells (P = .001), and CD34+CD44+ cells (P = .001) in CB were significantly increased over those of NB at delivery, and the numbers decreased gradually until 48 hours after delivery. In conclusion, the change in WBC count several days after delivery were closely associated with a temporary increase in neutrophils, and NK cells significantly decreased over time postdelivery. In addition, CD34+ cells were more prevalent in CB than in NB, and gradually decreased after birth. Such a change might be directly related to the kinetic changes of CXCR4 or CD49d and CD44 expression on CD34+ cells in CB and NB.
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Affiliation(s)
- Joong-Pyo Kim
- Department of Pediatrics, Moonhwa Hospital, Busan, Korea
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