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Anemia of prematurity

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https://www.readbyqxmd.com/read/29767696/clinical-outcomes-related-to-the-gastrointestinal-trophic-effects-of-erythropoietin-in-preterm-neonates-a-systematic-review-and-meta-analysis
#1
Anitha Ananthan, Haribalakrishna Balasubramanian, Shripada Rao, Sanjay Patole
Erythropoietin (EPO) plays an important role in the development and maturation of the gastrointestinal tract. Recombinant EPO (rEPO) has been used to prevent anemia of prematurity. The gastrointestinal trophic effects of EPO may reduce feeding intolerance and necrotizing enterocolitis (NEC) in preterm neonates. The aim of this systematic review of randomized controlled trials (RCTs) was to evaluate the effects of rEPO on clinical outcomes such as feeding intolerance, stage II or higher NEC, any stage NEC, sepsis, retinopathy of prematurity, and bronchopulmonary dysplasia in preterm neonates...
May 1, 2018: Advances in Nutrition
https://www.readbyqxmd.com/read/29762255/ombitasvir-paritaprevir-ritonavir-dasabuvir-ribavirin-for-chronic-hepatitis-c-virus-genotype-1b-infected-cirrhotics-turquoise-iv
#2
Vasily Isakov, Dzmitry Paduta, Rolando M Viani, Jeffrey V Enejosa, Viktor Pasechnikov, Olga Znoyko, Pavel Ogurtsov, Pavel O Bogomolov, Marina V Maevskaya, Xiaotian Chen, Nancy S Shulman
OBJECTIVE: An estimated 336 per 100 000 people in Russia are infected with hepatitis C virus, including up to 75% with genotype (GT) 1b. In the TURQUOISE-II/-III trials, a 12-week regimen of the direct-acting antiviral agents ombitasvir (OBV), paritaprevir (PTV), ritonavir, and dasabuvir (DSV) in GT1b-infected patients with compensated cirrhosis resulted in 12-week sustained virologic response (SVR) rates of 100%. PATIENTS AND METHODS: In TURQUOISE-IV, GT1b-infected patients (n=36) from Russia and Belarus with compensated cirrhosis, who were treatment naive or previously treated with pegylated interferon/ribavirin (RBV), received OBV/PTV/ritonavir+DSV+RBV for 12 weeks...
May 14, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29749397/recurrent-somatic-mutations-are-rare-in-patients-with-cryptic-dyskeratosis-congenita
#3
Martin Kirschner, Angela Maurer, Marcin W Wlodarski, Monica S Ventura Ferreira, Anne-Sophie Bouillon, Insa Halfmeyer, Wolfgang Blau, Michael Kreuter, Martin Rosewich, Selim Corbacioglu, Joachim Beck, Michaela Schwarz, Jörg Bittenbring, Markus P Radsak, Christian Matthias Wilk, Steffen Koschmieder, Matthias Begemann, Ingo Kurth, Mirle Schemionek, Tim H Brümmendorf, Fabian Beier
Dyskeratosis congenita (DKC) is a paradigmatic telomere disorder characterized by substantial and premature telomere shortening, bone marrow failure, and a dramatically increased risk of developing myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML). DKC can occur as a late-onset, so-called cryptic form, with first manifestation in adults. Somatic MDS-related mutations are found in up to 35% of patients with acquired aplastic anemia (AA), especially in patients with short telomeres. The aim of our study was to investigate whether cryptic DKC is associated with an increased incidence of MDS-related somatic mutations, thereby linking the accelerated telomere shortening with the increased risk of MDS/AML...
April 2, 2018: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/29740185/anemia-of-prematurity-and-cerebral-near-infrared-spectroscopy-should-transfusion-thresholds-in-preterm-infants-be-revised
#4
Halana V Whitehead, Zachary A Vesoulis, Akhil Maheshwari, Rakesh Rao, Amit M Mathur
OBJECTIVE: To determine the impact of progressive anemia of prematurity on cerebral regional saturation (C-rSO2 ) in preterm infants and identify the hemoglobin threshold below which a critical decrease (>2SD below the mean) in C-rSO2 occurs. STUDY DESIGN: In a cohort of infants born ≤30 weeks EGA, weekly C-rSO2 data were prospectively collected from the second week of life through 36 weeks post-menstrual age (PMA). Clinically obtained hemoglobin values were noted at the time of recording...
May 8, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29734941/infective-endocarditis-due-to-burkholderia-cepacia-in-a-neonate-a-case-report
#5
Emir Yonas, Vito Damay, Raymond Pranata, Nuvi Nusarintowati
BACKGROUND: Burkholderia is a pathogen that is rarely seen in clinical cases. However, this organism is being found more commonly in hospitals. CASE PRESENTATION: A female Indonesian newborn was referred to our neonatal intensive care unit because of respiratory distress. The newborn had been delivered the previous night via cesarean section. A physical examination revealed intercostal retractions and weak cry. The newborn's gestational history was preterm, small for gestational age, and preterm premature ruptured membrane for 14 hours...
May 8, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29730657/adolescent-undernutrition-global-burden-physiology-and-nutritional-risks
#6
Parul Christian, Emily R Smith
Adolescents, comprised of 10-19 year olds, form the largest generation of young people in our history. There are an estimated 1.8 billion adolescents in the world, with 90% residing in low- and middle-income countries. The burden of disease among adolescents has its origins in infectious and injury-related causes, but nutritional deficiencies, suboptimal linear growth, and undernutrition are major public health problems, even as overweight may be on the rise in many contexts. Summary and Key Messages: Girls are most vulnerable to the influences of cultural and gender norms, which often discriminate against them...
May 4, 2018: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29702541/novel-variations-of-fanca-gene-provokes-fanconi-anemia-molecular-diagnosis-in-a-special-chinese-family
#7
Niu Li, Aiyun Song, Lixia Ding, Hua Zhu, Guoqiang Li, Yan Miao, Jian Wang, Benshang Li, Jing Chen
Fanconi anemia (FA) is a rare autosomal recessive or X-linked disorder with highly variable clinical manifestations and an incidence of ∼1 to 5 in 1 million births. To date, 15 bona fide FA genes have been reported to be responsible for the known FA complementation groups and the FANCA gene accounts for almost 60%. In the present study, we report a special Chinese family, which has 2 children with classic FA characteristics. Via 2-step analysis of the whole-exome sequencing data and verification using multiplex ligation-dependent probe amplification test, one child was found to have a novel compound heterozygous mutation of a splicing variant (c...
April 26, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29696692/the-impact-of-erythropoietin-and-iron-status-on-brain-myelination-in-the-newborn-rat
#8
Karen P Flores, Sharon E Blohowiak, Joy J Winzerling, Michael K Georgieff, Pamela J Kling
Erythropoietin (Epo) drives iron (Fe) utilization for erythropoiesis, but the potentially resultant tissue iron deficiency (ID) can also impede brain development. Conversely, Epo binds to Epo receptors (EpoR) on immature brain oligodendrocytes and neurons, promoting growth and differentiation. The objective of the study was to examine the interaction between Epo and Fe on myelination in brain development during daily Epo treatment. Male and female Sprague-Dawley rats from postnatal day (P) P4-P12 modeled premature newborns...
April 26, 2018: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29673331/prevalence-and-factors-associated-with-preterm-birth-at-kenyatta-national-hospital
#9
Peter Wagura, Aggrey Wasunna, Ahmed Laving, Dalton Wamalwa, Paul Ng'ang'a
BACKGROUND: The World Health Organization estimates the prevalence of preterm birth to be 5-18% across 184 countries of the world. Statistics from countries with reliable data show that preterm birth is on the rise. About a third of neonatal deaths are directly attributed to prematurity and this has hindered the achievement of Millennium Development Goal-4 target. Locally, few studies have looked at the prevalence of preterm delivery and factors associated with it. This study determined the prevalence of preterm birth and the factors associated with preterm delivery at Kenyatta National Hospital in Nairobi, Kenya...
April 19, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29620684/neutropenia-and-increased-mean-corpuscular-volume-mcv-with-abnormal-neurological-findings-a-case-of-cobalamin-d-deficiency
#10
Pembe Soylu Ustkoyuncu, Mustafa Kendirci, Fatih Kardas, Songul Gokay, Huseyin Per, Ayse Kacar Bayram
BACKGROUND: Disorders of intracellular cobalamin (Cbl) metabolism are classified from A to J according to biochemical phenotype, and genetic and complementation analyses. CblD-deficient patients present with developmental, hematologic, neurologic, and metabolic findings. CLINICAL OBSERVATION: An 11-year-old boy presented with neutropenia, increased mean corpuscular volume, psychomotor retardation, and seizures. His plasma total homocysteine and urinary methylmalonic acid levels were elevated, and a homozygous nonsense mutation [p...
April 3, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29578894/comparison-of-placental-and-neonatal-admission-complete-blood-cell-count-and-blood-cultures
#11
Desi M Newberry
BACKGROUND: The utilization of placental blood for neonatal admission laboratory tests, specifically the complete blood cell (CBC) count and blood culture, has the potential to delay the onset of anemia of prematurity and intraventricular hemorrhage, frequency of blood transfusions and associated complications, and painful procedures related to laboratory sampling. PURPOSE: To determine the feasibility of drawing neonatal admission laboratory tests from the placenta rather than the neonate and to compare CBC count and blood culture results...
March 23, 2018: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/29564255/prospective-study-on-prevalence-of-anemia-of-pregnant-women-and-its-outcome-a-community-based-study
#12
Ravishankar Suryanarayana, Muninarayana Chandrappa, Anil Navale Santhuram, S Prathima, S R Sheela
Background: Anemia is one of the most common nutritional deficiency disorders affecting the pregnant women in the developing countries. Anemia during pregnancy is commonly associated with poor pregnancy outcome and can result in complications that threaten the life of both mother and fetus. Objective: The objective of the study was to estimate the prevalence of anemia among pregnant women and to determine its association with maternal and fetal outcomes. Settings and Design: This study design was a prospective, observational, community-based study...
October 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29550804/autologous-cord-blood-transfusion-in-preterm-infants-could-its-humoral-effect-be-the-kez-to-control-prematurity-related-complications-a-preliminary-study
#13
M Kotowski, Z Litwinska, P Klos, E Pius-Sadowska, E Zagrodnik-Ulan, P Ustianowski, J Rudnicki, B Machalinski
Umbilical cord blood (UCB), rich in stem/progenitor cells, is partially eliminated from the bloodstream during childbirth because the cord is immediately clamped. We hypothesize that transfusion of autologous UCB to premature infants after delivery could serve as an adjuvant modality for preventing the development of prematurity-related complications. We randomly enrolled 20 preterm infants born before 32 weeks of gestational age (GA), all of whom developed anemia, necessitating transfusion of red blood cells (RBCs)...
December 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29549173/the-clinical-spectrum-of-pyruvate-kinase-deficiency-data-from-the-pyruvate-kinase-deficiency-natural-history-study
#14
Rachael F Grace, Paola Bianchi, Eduard J van Beers, Stefan W Eber, Bertil Glader, Hassan M Yaish, Jenny M Despotovic, Jennifer A Rothman, Mukta Sharma, Melissa M McNaull, Elisa Fermo, Kimberly Lezon-Geyda, D Holmes Morton, Ellis J Neufeld, Satheesh Chonat, Nina Kollmar, Christine M Knoll, Kevin Kuo, Janet L Kwiatkowski, Dagmar Pospíŝilová, Yves D Pastore, Alexis A Thompson, Peter E Newburger, Yaddanapudi Ravindranath, Winfred C Wang, Marcin W Wlodarski, Heng Wang, Susanne Holzhauer, Vicky R Breakey, Joachim Kunz, Sujit Sheth, Melissa J Rose, Heather A Bradeen, Nolan Neu, Dongjing Guo, Hasan Al-Sayegh, Wendy B London, Patrick G Gallagher, Alberto Zanella, Wilma Barcellini
An international, multicenter registry was established to collect retrospective and prospective clinical data on patients with pyruvate kinase (PK) deficiency, the most common glycolytic defect causing congenital non-spherocytic hemolytic anemia. Medical history and laboratory and radiologic data were retrospectively collected at enrollment in 254 patients with molecularly confirmed PK deficiency. Perinatal complications were common, including anemia requiring transfusions, hyperbilirubinemia, hydrops, and prematurity...
March 16, 2018: Blood
https://www.readbyqxmd.com/read/29535446/tubular-immaturity-causes-erythropoietin-deficiency-anemia-of-prematurity-in-preterm-neonates
#15
Nariaki Asada
Kidneys are physiologically hypoxic due to huge oxygen consumption for tubular reabsorption. The physiological hypoxia makes the kidney an appropriate organ for sensitively detecting oxygen levels and producing erythropoietin (EPO). In preterm neonates, immature kidneys cannot produce sufficient EPO, which results in anemia of prematurity (AOP). The cause of EPO insufficiency in AOP has been unclear, therefore current therapeutic options are transfusion and injection of recombinant human EPO. This report shows that the cause of insufficient EPO production in AOP is elevated renal oxygen levels due to poor oxygen consumption by immature tubules...
March 13, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29461260/hemolysis-and-immune-regulation
#16
Hui Zhong, Karina Yazdanbakhsh
PURPOSE OF REVIEW: Hemolytic anemias caused by premature destruction of red blood cells occur in many disorders including hemoglobinopathies, autoimmune conditions, during infection or following reaction to drugs or transfusions. Recent studies which will be reviewed here have uncovered several novel mechanisms by which hemolysis can alter immunological functions and increase the risk of severe complications in hemolytic disorders. RECENT FINDINGS: Plasma-free heme can induce the formation of neutrophil extracellular traps (NETs) through reactive oxygen species signaling...
May 2018: Current Opinion in Hematology
https://www.readbyqxmd.com/read/29455427/variation-in-cardiac-markers-and-electrocardiographic-alterations-in-young-calves-naturally-infected-with-bovine-tropical-theileriosis
#17
Kapil Kumar Gupta, Mukesh Srivastava, Vikrant Sudan, Shanker Kumar Singh, Soumen Choudhury, Daya Shanker
The present study was designed to assess the deleterious effects of bovine tropical theileriosis on the cardiovascular system and the consequent myocardial involvement in young calves. Myocardial effects in parasitic diseases are often neglected. Hemolytic anemia, associated secondary hypoxia, and vasculitis are cardinal features of bovine theileriosis. In the present study, electrocardiogram (ECG) alongside serum cardiac troponin I (cTnI) and creatinine phosphokinase-myocardial band (CPK-MB) concentrations were analyzed in infected, treated, and control groups of young calves...
February 17, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29434282/murine-hematopoietic-stem-cell-reconstitution-potential-is-maintained-by-osteopontin-during-aging
#18
Jin Li, Carmen Carrillo García, Tamara Riedt, Maria Brandes, Sabrina Szczepanski, Peter Brossart, Wolfgang Wagner, Viktor Janzen
In adult mammals, hematopoietic stem cells (HSCs) reside in the bone marrow and are in part regulated by the bone marrow microenvironment, called the stem cell niche. We have previously identified the bone marrow morphogen osteopontin (OPN), which is abundantly present in the bone marrow extracellular matrix, as a negative regulator of the size of the HSC pool under physiological conditions. Here, we study the impact of OPN on HSC function during aging using an OPN-knockout mouse model. We show that during aging OPN deficiency is associated with an increase in lymphocytes and a decline in erythrocytes in peripheral blood...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29280474/anemia-in-pregnancy-a-pragmatic-approach
#19
Dongmei Sun, Anne McLeod, Shital Gandhi, Ann Kinga Malinowski, Nadine Shehata
Importance: Anemia is common in pregnancy, ranging from 5.4% in developed countries to more than 80% in developing countries. Anemia in pregnancy has been associated with prematurity, low birth weight, and adverse pregnancy outcomes. Objective: This review uses clinical vignettes to illustrate the clinical presentations, approach to diagnosis, maternal and fetal implications, and treatment for the common etiologies of anemia in pregnancy. Evidence Acquisition: Literature review...
December 2017: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/29278628/perinatal-complications-in-two-cohort-groups-of-preterm-newborns-in-intensive-care-unit-for-children-s-diseases-of-university-clinical-hospital-mostar
#20
Vedran Bjelanović, Marjana Jerković Raguž, Matea Galić, Ana Čuljak, Ivana Bjelanović, Vajdana Tomić
AIM: To determine the frequency and type of complications in two cohort groups of preterm newborns. SUBJECTS AND METHODS: The research involved 100 preterm newborns divided into two groups according to their gestational age: newborns from 24 to 33+6/7 weeks GA and newborns from 34 to 36+6/7 weeks GA. Parameters which were observed with mother were: age, number of births, course and complications in pregnancy. Parameters with infant: gestational age, weight, newborn small for gestational age (IUGR), asphyxia, respiratory distress syndrome, sepsis, hyperbilirubinemia, apnea, anemia, intracranial hemorrhage and metabolic disorder (hypoglycaemia, hypocalcaemia)...
December 2017: Psychiatria Danubina
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