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Neonatal Platelets

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https://www.readbyqxmd.com/read/29119564/intracranial-hemorrhages-in-neonates-born-from-32-weeks-of-gestation-low-frequency-of-associated-fetal-and-neonatal-alloimmune-thrombocytopenia-a-register-based-study
#1
Erle Refsum, Stellan Håkansson, Anette Mörtberg, Agneta Wikman, Magnus Westgren
BACKGROUND: Fetal and neonatal alloimmune thrombocytopenia (FNAIT) is a rare condition, with an estimated incidence of one in 1000 to 2000 live births. Predominantly, FNAIT is due to maternal alloantibodies that target paternally derived human platelet antigen (HPA) 1a. The most feared complication is an intracranial hemorrhage (ICH). The aim of this study was to determine the frequency of associated maternal platelet (PLT) alloimmunization in a population of neonates born from 32 weeks of gestation and diagnosed with an ICH...
November 8, 2017: Transfusion
https://www.readbyqxmd.com/read/29116547/the-bpd-trio-interaction-of-dysregulated-pdgf-vegf-and-tgf-signaling-in-neonatal-chronic-lung-disease
#2
REVIEW
Prajakta Oak, Anne Hilgendorff
The development of neonatal chronic lung disease (nCLD), i.e., bronchopulmonary dysplasia (BPD) in preterm infants, significantly determines long-term outcome in this patient population. Risk factors include mechanical ventilation and oxygen toxicity impacting on the immature lung resulting in impaired alveolarization and vascularization. Disease development is characterized by inflammation, extracellular matrix remodeling, and apoptosis, closely intertwined with the dysregulation of growth factor signaling...
November 7, 2017: Molecular and Cellular Pediatrics
https://www.readbyqxmd.com/read/29113524/how-does-preeclampsia-affect-neonates-highlights-in-the-disease-s-immunity
#3
Lina R Marins, Leonardo B Anizelli, Ana L Sarquis, Mariana D Romanowski
INTRODUCTION: Preeclampsia (PE) is the primary obstetrical cause in one to four perinatal deaths. Although the etiology and pathogenesis of preeclampsia is not fully known, a proinflammatory immune state prevails and can disrupt fetal hematopoiesis. Some of the effects on the newborn include neonatal thrombocytopenia, neutropenia, a reduction in T regulatory cells and an increased cytotoxic natural killer cell profile. METHOD: Electronic databases were searched, and defined criteria were applied to select articles for review...
November 7, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29084071/a-study-of-red-cell-distribution-width-in-neonatal-sepsis
#4
Dalia Monir Ellahony, Muhammad S El-Mekkawy, Marwa M Farag
OBJECTIVES: The objective of this study was to evaluate a new nontraditional value of the red cell distribution width (RDW) in predicting the clinical outcome of neonatal sepsis. METHODS: In this retrospective study, data were collected from the medical files of 500 full-term neonates with a diagnosis of early onset or late onset sepsis. Baseline RDW and other traditional biomarkers, including C-reactive protein (CRP), total leucocytic count, and platelet count were analyzed in light of the clinical data...
October 27, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/29075543/undetected-severe-fetal-myelosuppression-following-administration-of-high-dose-cytarabine-for-acute-myeloid-leukemia-is-more-frequent-surveillance-necessary
#5
Jessica Parrott, Marium Holland
BACKGROUND: Cytarabine use during pregnancy carries a 5-7% risk of neonatal cytopenia. We report two cases of fetal myelosuppression following high-dose cytarabine administration for acute myeloid leukemia (AML). CASE 1: A 36-year-old G9P6 diagnosed with AML at 21 weeks was monitored for fetal anemia weekly and growth monthly. At 33 weeks (after 2 cycles), BPP was 2/10 and MCA PSV was elevated at 1.51 MoM. Urgent cesarean section was performed. The infant had an initial pH of 6...
2017: Case Reports in Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29057376/p2y12-receptor-function-and-response-to-cangrelor-in-neonates-with-cyanotic-congenital-heart-disease
#6
Elisabeth A Kaza, Matthew C Egalka, Hairu Zhou, Jianchun Chen, Denise Evans, Jayne Prats, Ruizhi Li, Scott L Diamond, Julie A Vincent, Emile A Bacha, Thomas G Diacovo
Shunt thrombosis remains a major cause of morbidity and mortality, especially during the initial palliation for single-ventricle physiology. The authors present evidence that the P2Y12 inhibitor cangrelor may fill a therapeutic void in thromboprophylaxis. They base this theory on results showing that platelets from neonatal patients with cyanotic congenital heart disease have a robust response to adenosine diphosphate and are amenable to P2Y12 inhibition with cangrelor. Unique to this study was their ability to establish drug efficacy in an avatar mouse model that permits the in vivo evaluation of human platelet-mediated thrombus formation illustrating that this P2Y12 inhibitor yields the intended biological response...
August 2017: JACC. Basic to Translational Science
https://www.readbyqxmd.com/read/29055117/can-neutrophil-to-lymphocyte-ratio-predict-late-onset-sepsis-in-preterm-infants
#7
Senem Alkan Ozdemir, Esra Arun Ozer, Ozkan Ilhan, Sumer Sutcuoglu
BACKGROUND: The neutrophil to lymphocyte ratio (NLR) is an easily accessible biomarker that has been reported to represent disease severity in adult trials. The aim of this study was to evaluate the relationship between culture positiveness and NLR in cases where the reason of sepsis was considered, and to foresight an idea about the active agents. METHODS: Preterm infants with birth weights ≤1500 g and/or ≤32 gestational weeks were eligible for this study...
October 21, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/29050488/association-between-neutrophil-lymphocyte-ratio-with-ductus-arteriosus-patency-in-preterm-newborns
#8
M T Temel, M E Coskun, S Akbayram, A T Demiryürek
OBJECTIVE: The aim of this study was to assess the influence of neutrophil to lymphocyte (N/L) ratio and platelet indices on patent ductus arteriosus (PDA) in preterm infants. BACKGROUND: PDA is a common problem with potentially serious associated morbidities in preterm neonates. METHODS: Premature infants with hemodynamically significant PDA (n = 47) and a control group without PDA (n = 50) who were hospitalized in the neonatal intensive care unit were retrospectively evaluated...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/29045957/-clinical-characteristics-of-neonatal-fungal-sepsis-in-neonatal-intensive-care-unit
#9
X Zhang, X F Ru, Y Wang, X Li, T Sang, Q Feng
OBJECTIVE: To study the characteristics of neonatal fungal sepsis and the difference between bacterial sepsis and fungal sepsis. To improve the understanding of neonatal fungal sepsis. METHODS: Clinical data of neonatal fungal sepsis in neonatal intensive care unit (NICU) were collected from 2011 to 2016 in Peking University first Hospital. The clinical characteristics were analyzed retrospectively. The difference between neonatal fungal sepsis and bacterial sepsis was also analyzed...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29044293/down-regulation-of-the-munc18b-syntaxin-11-complex-and-%C3%AE-1-tubulin-impairs-secretion-and-spreading-in-neonatal-platelets
#10
Eva Caparrós-Pérez, Raúl Teruel-Montoya, Verónica Palma-Barquero, José M Torregrosa, José E Blanco, Juan L Delgado, María Luisa Lozano, Vicente Vicente, Martha Sola-Visner, José Rivera, Constantino Martínez, Francisca Ferrer-Marín
Neonatal platelets are hyporeactive and show impaired agonist-induced secretion despite no obvious abnormalities in their granules. Here, we examined, for the first time, the ultrastructure of neonatal and adult platelets following agonist activation. Under resting conditions, neonatal and adult platelets appeared ultrastructurally identical. Following agonist stimulation, however, noticeable degranulation occurred in adult platelets, while granules in neonatal platelets remained clearly visible and apparently unable to centralize or fuse...
October 10, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29037549/long-term-outcome-of-pregnancy-complicating-with-severe-aplastic-anemia-under-supportive-care
#11
Kuan-Ju Chen, Yao-Lung Chang, Horng Chang, Shen-Yuan Su, Hsiu-Huei Peng, Shuenn-Dyh Chang, An-Shine Chao
OBJECTIVES: Pregnancy associated with aplastic anemia (AA) is a rare and heterogeneous disorder. We aimed to identify and evaluate the maternal and pregnant outcomes of pregnancy-associated severe AA treated with supportive care. MATERIALS AND METHODS: A 25-year retrospective study was conducted at in a single center between 1990 and 2014 with pregnancy associated severe AA. In addition, relevant published cases of antenatally diagnosed pregnancy-associated severe AA after 1990 were identified by PubMed...
October 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29030871/fetal-neonatal-alloimmune-thrombocytopenia-due-to-anti-cd36-antibodies-antibody-evaluations-by-cd36-transfected-cell-lines
#12
Marie Lin, Xiuzhang Xu, Hui-Lin Lee, Der-Cheng Liang, Sentot Santoso
BACKGROUND: Isoantibodies against CD36 (platelet glycoprotein 4), developed in Type I CD36-deficient mothers are frequently reported as the cause of fetal/neonatal alloimmune thrombocytopenia in the Asian population. Therefore, further detailed characterization of anti-CD36-mediated fetal/neonatal alloimmune thrombocytopenia is warranted. Here, we report the characterization of a patient with fetal/neonatal alloimmune thrombocytopenia in a Taiwanese family caused by anti-CD36 isoantibodies using a novel antigen-capture method...
October 13, 2017: Transfusion
https://www.readbyqxmd.com/read/29028152/salivary-c-reactive-protein-and-mean-platelet-volume-in-diagnosis-of-late-onset-neonatal-pneumonia
#13
Ahmed Omran, Mohammed Ali, Mai H Saleh, Osama Zekry
BACKGROUND: Neonatal pneumonia is an important and major cause of neonatal morbidity and mortality worldwide therefore; its early detection plays a crucial role in successful therapy. Analysis of saliva as a non-invasive method for detection of neonatal diseases holds great promise for improving health care. Till now, salivary C-reactive protein (CRP), mean platelet volume (MPV), neutrophil/lymphocyte ratio (NLR) and platelets/lymphocytes ratio (PLR) have not been studied as markers of diagnosis in neonatal pneumonia...
October 13, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/28977011/thrombocytopenia-in-neonatal-sepsis-incidence-severity-and-risk-factors
#14
Isabelle M C Ree, Suzanne F Fustolo-Gunnink, Vincent Bekker, Karin J Fijnvandraat, Sylke J Steggerda, Enrico Lopriore
OBJECTIVES: Thrombocytopenia is a frequent problem in neonatal sepsis and is among the most predictive, independent risk factors for sepsis-associated mortality. This study aims to clarify the occurrence, severity and duration of thrombocytopenia in neonatal sepsis. STUDY DESIGN: A cohort study was carried out among all neonates with proven culture positive sepsis that were admitted to a tertiary NICU between 2006 and 2015 (n = 460). The occurrence, severity and duration of thrombocytopenia were recorded, as well as major bleedings and potential risk factors for mortality in neonatal sepsis...
2017: PloS One
https://www.readbyqxmd.com/read/28976078/platelet-indices-in-preterm-premature-rupture-of-membranes-and-their-relation-with-adverse-neonatal-outcomes
#15
Betul Dundar, Burcu Dincgez Cakmak, Gulten Ozgen, Fatma Nurgul Tasgoz, Tugberk Guclu, Gokhan Ocakoglu
AIM: Preterm premature rupture of membranes (PPROM) is not only the most common distinguishable cause of preterm delivery, but is also associated with adverse neonatal outcomes. We determined the platelet indices in PPROM cases and evaluated their relationship to adverse neonatal outcomes. METHODS: Fifty patients with PPROM and 50 patients who experienced spontaneous preterm labor at < 37 gestational weeks were evaluated. Complete blood counts, birth weights, Apgar scores, presence of sepsis and respiratory distress syndrome (RDS) and neonatal intensive care unit admission were recorded...
October 4, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28970801/polyphosphate-in-neonates-less-shedding-from-platelets-and-divergent-prothrombotic-capacity-due-to-lower-tfpi-levels
#16
Axel Schlagenhauf, Harald Haidl, Sina Pohl, Eva-Christine Weiss, Bettina Leschnik, Siegfried Gallistl, Wolfgang Muntean
Background: The neonatal hemostatic system exhibits a fragile balance featuring lower levels of clotting factors as well as inhibitors. Neonatal platelets show in-vitro hypoaggregability, but neonates exhibit well-functioning primary and secondary hemostasis despite this impairment. Recently, polyphosphate shed by activated platelets has been shown to induce a prothrombotic shift on the plasmatic coagulation system of adults. The impact of platelet derived polyphosphate might differ in neonates due to aforementioned peculiarities...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28923772/reference-intervals-of-citrated-native-whole-blood-thromboelastography-in-premature-neonates
#17
Mario Motta, Brunetta Guaragni, Elena Pezzotti, Carmen Rodriguez-Perez, Gaetano Chirico
BACKGROUND: Bleeding due to acquired coagulation disorders is a common complication in premature neonates. In this clinical setting, standard coagulation laboratory tests might be unsuitable to investigate the hemostatic function as they reflect the concentration of pro-coagulant proteins but not of anti-coagulant proteins. Thromboelastography (TEG), providing a more complete assessment of hemostasis, may be able to overcome some of these limitations. Unfortunately, experience on the use of TEG in premature neonates is very limited and, in particular in this population, reference ranges of TEG parameters have not been yet evaluated...
September 15, 2017: Early Human Development
https://www.readbyqxmd.com/read/28919829/age-and-sex-related-changes-in-hematological-parameters-in-healthy-malawians
#18
Wilson L Mandala, Esther N Gondwe, Jenny M MacLennan, Malcolm E Molyneux, Calman A MacLennan
AIM: The aim of the study was to determine how values for white blood cell (WBC) counts, hemoglobin (Hb), hematocrit (Hct), mean corpuscular volume (mcv), and platelet counts vary with age and sex in healthy Malawians. METHODS: We recruited 660 (316 male and 344 female) participants in 12 different age groups. An ethylenediaminetetraacetic acid-anticoagulated blood sample collected from each participant was analyzed using a hematological analyzer. RESULTS: WBC counts decreased with age with the lowest counts observed in the 20 to <60 years old group...
2017: Journal of Blood Medicine
https://www.readbyqxmd.com/read/28912922/obstetric-outcomes-of-twin-pregnancies-in-japanese-women-aged-40-and-older
#19
Shunji Suzuki
BACKGROUND: The aim of this study was to compare the obstetric outcomes of twin pregnancies between Japanese women aged ≥ 40 years and their younger counterparts aged 25 - 29. METHODS: This was a retrospective study of twin pregnancies managed at Japanese Red Cross Katsushika Maternity Hospital between 2002 and 2016. Women aged 40 and older at delivery (n = 117) were compared with women aged 25 - 29 at delivery (n = 536). RESULTS: Although the women ≥ 40 years old were more likely to have increased risks of HELLP (hemolytic, elevated liver enzymes and low platelet) syndrome and very low birth weight neonates, there were no measurable differences in obstetric outcomes such as hypertensive disorders, premature delivery and neonatal asphyxia between the two groups...
October 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28892906/changes-in-haematological-parameters-in-newborns-born-to-preeclamptic-mothers-a-case-control-study-in-a-rural-hospital
#20
Kalavakuru Mouna, Shilpa Manigatta Doddagowda, Krishnappa Junjegowda, Latha Krishnamurthy
INTRODUCTION: Pregnancy is a physiological phenomenon. However, some women develop problems during pregnancy period, which puts both the mother's and the foetus health at risk. Hypertensive disorders of pregnancy are the type of the maternal diseases that can cause the most detrimental effects to the mother and foetus. AIMS: To determine the haematological parameters in neonates born to preeclamptic mothers. MATERIALS AND METHODS: It was a prospective case control study carried out on neonates born to preeclamptic mothers in our institute from March 2016 to November 2016...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
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