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https://www.readbyqxmd.com/read/28938051/pregnancy-disorders-in-africa-and-the-obstetric-dilemma
#1
Annettee Nakimuli, Ashley Moffett
The high neonatal and maternal morbidity and mortality associated with the extremes of birth weight is referred to as the obstetric dilemma. Pre-eclampsia and other conditions that lead to low birth weight are considered as the Great Obstetrical Syndromes (GOS). At the other extreme is high birth weight resulting in obstructed labour. Fetal weight largely depends on placental function and defective placentation is a common feature of the GOS. There is evidence that the local uterine immune system (KIR and HLA-C) regulates placentation, with racial differences noted...
December 1, 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28933267/neonatal-plasticity-of-the-nociceptive-system-mechanisms-effects-and-treatment-of-repetitive-painful-procedures-during-nicu-admittance
#2
N J Van den Hoogen, J Patijn, D Tibboel, E A Joosten
INTRODUCTION: In Neonatal Intensive Care Unit (NICU), prematurely born infants undergo a range of skin breaking and painful procedures. At the same time, the spinal nociceptive system is in a sensitive developmental stage. Both neonatal repetitive painful procedures and their treatment can induce plasticity of the neonatal spinal nociceptive system, causing long-lasting alterations to pain processing and pain reactivity. METHODS: This review focuses on developmental processes related to the nociceptive network in the spinal dorsal horn and more specifically at mechanisms related to 1...
September 21, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28927201/recognition-and-clinical-presentation-of-invasive-fungal-disease-in-neonates-and-children
#3
Jill King, Zoi-Dorothea Pana, Thomas Lehrnbecher, William J Steinbach, Adilia Warris
Invasive fungal diseases (IFDs) are devastating opportunistic infections that result in significant morbidity and death in a broad range of pediatric patients, particularly those with a compromised immune system. Recognizing them can be difficult, because nonspecific clinical signs and symptoms or isolated fever are frequently the only presenting features. Therefore, a high index of clinical suspicion is necessary in patients at increased risk of IFD, which requires knowledge of the pediatric patient population at risk, additional predisposing factors within this population, and the clinical signs and symptoms of IFD...
September 1, 2017: Journal of the Pediatric Infectious Diseases Society
https://www.readbyqxmd.com/read/28918659/ureaplasma-associated-prenatal-perinatal-and-neonatal-morbidities
#4
Christine Silwedel, Christian P Speer, Kirsten Glaser
Ureaplasma species (spp.) have been acknowledged as major causative pathogens in chorioamnionitis and prematurity, but may also contribute to key morbidities in preterm infants. Several epidemiological and experimental data indicate an association of neonatal Ureaplasma colonization and/or infection with bronchopulmonary dysplasia. Furthermore, a potential causal relation with other inflammation-induced morbidities, such as intraventricular hemorrhage, white matter injury, necrotizing enterocolitis, and retinopathy of prematurity, has been debated...
September 23, 2017: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/28916391/zika-virus-structural-biology-and-progress-in-vaccine-development
#5
REVIEW
Hsiao-Han Lin, Bak-Sau Yip, Li-Min Huang, Suh-Chin Wu
The growing number of zika virus (ZIKV) infections plus a 20-fold increase in neonatal microcephaly in newborns in Brazil have raised alarms in many countries regarding the threat to pregnant women. Instances of microcephaly and central nervous system malformations continue to increase in ZIKV outbreak regions. ZIKV is a small enveloped positive-strand RNA virus belonging to the Flavivirus genus of the Flaviviridae family. High-resolution ZIKV structures recently identified by cryo-electron microscopy indicate that the overall ZIKV structure is similar to those of other flaviviruses...
September 12, 2017: Biotechnology Advances
https://www.readbyqxmd.com/read/28916046/inflammatory-response-and-long-term-behavioral-assessment-after-neonatal-co2-pneumothorax-study-in-a-rodent-model
#6
Alice Miranda, Susana Roque, Cláudia Serre-Miranda, José Miguel Pêgo, Jorge Correia-Pinto
BACKGROUND: Carbon-dioxide (CO2)-pneumothorax during minimally invasive surgery induces well-known metabolic changes. However, little is known about its impact on the central nervous system. The aim of this work is to evaluate the acute impact of CO2-pneumothorax over central cytokine response and its long-term effect on animal behavior. METHODS: This is an experimental study where neonatal Sprague-Dawley rats are submitted to CO2-pneumothorax. Peripheral and central cytokine response was evaluated 24h after insufflation, and peripheral immune cell phenotyping was evaluated 24h and 4weeks post-insufflation...
August 24, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28915238/a-high-resolution-atlas-of-gene-expression-in-the-domestic-sheep-ovis-aries
#7
Emily L Clark, Stephen J Bush, Mary E B McCulloch, Iseabail L Farquhar, Rachel Young, Lucas Lefevre, Clare Pridans, Hiu Tsang, Chunlei Wu, Cyrus Afrasiabi, Mick Watson, C Bruce Whitelaw, Tom C Freeman, Kim M Summers, Alan L Archibald, David A Hume
Sheep are a key source of meat, milk and fibre for the global livestock sector, and an important biomedical model. Global analysis of gene expression across multiple tissues has aided genome annotation and supported functional annotation of mammalian genes. We present a large-scale RNA-Seq dataset representing all the major organ systems from adult sheep and from several juvenile, neonatal and prenatal developmental time points. The Ovis aries reference genome (Oar v3.1) includes 27,504 genes (20,921 protein coding), of which 25,350 (19,921 protein coding) had detectable expression in at least one tissue in the sheep gene expression atlas dataset...
September 15, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28887432/maternal-pregravid-obesity-remodels-the-dna-methylation-landscape-of-cord-blood-monocytes-disrupting-their-inflammatory-program
#8
Suhas Sureshchandra, Randall M Wilson, Maham Rais, Nicole E Marshall, Jonathan Q Purnell, Kent L Thornburg, Ilhem Messaoudi
Prepregnancy maternal obesity is associated with adverse outcomes for the offspring, including increased incidence of neonatal bacterial sepsis and necrotizing enterocolitis. We recently reported that umbilical cord blood (UCB) monocytes from babies born to obese mothers generate a reduced IL-6/TNF-α response to TLR 1/2 and 4 ligands compared to those collected from lean mothers. These observations suggest altered development of the offspring's immune system, which in turn results in dysregulated function...
September 8, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28879060/onset-of-human-preterm-and-term-birth-is-related-to-unique-inflammatory-transcriptome-profiles-at-the-maternal-fetal-interface
#9
Radek Bukowski, Yoel Sadovsky, Hani Goodarzi, Heping Zhang, Joseph R Biggio, Michael Varner, Samuel Parry, Feifei Xiao, Sean M Esplin, William Andrews, George R Saade, John V Ilekis, Uma M Reddy, Donald A Baldwin
BACKGROUND: Preterm birth is a main determinant of neonatal mortality and morbidity and a major contributor to the overall mortality and burden of disease. However, research of the preterm birth is hindered by the imprecise definition of the clinical phenotype and complexity of the molecular phenotype due to multiple pregnancy tissue types and molecular processes that may contribute to the preterm birth. Here we comprehensively evaluate the mRNA transcriptome that characterizes preterm and term labor in tissues comprising the pregnancy using precisely phenotyped samples...
2017: PeerJ
https://www.readbyqxmd.com/read/28874690/a-single-neonatal-administration-of-bisphenol-a-induces-higher-tumour-weight-associated-to-changes-in-tumour-microenvironment-in-the-adulthood
#10
Margarita Isabel Palacios-Arreola, Karen Elizabeth Nava-Castro, Víctor Hugo Del Río-Araiza, Nashla Yazmín Pérez-Sánchez, Jorge Morales-Montor
BPA is an oestrogenic endocrine disrupting chemical compound. Exposure to BPA in as early as pregnancy leads to lifelong effects. Since endocrine and immune systems interact in a bidirectional manner, endocrine disruption may cause permanent alterations of the immune system, affecting a future anti-tumoral response. Neonate (PND 3) female syngeneic BALB/c mice were exposed to a single dose of 250 µg/kg BPA. Once sexual maturity was reached, a mammary tumour was induced injecting 4T1 cells in situ, these cells are derived from a spontaneous adenocarcinoma in a BALB/c mouse and therefore allows for an immunocompetent recipient...
September 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28870491/the-effect-of-neonatal-immune-challenge-on-reproduction-by-altering-intraovarian-kisspeptin-gpr54-system-in-the-rat
#11
Bin-Qiao Wang, Yuan-Yuan Chen, Xiao-Xiao Lan, Zhi-Yang Zhou, Xin-Xin Xu, Xue-Qing Wu
Immune challenge in early life has been observed to influence the long-term reproductive dysfunction. On PNDs 3 and 5, female offsprings were administered with LPS (50μg/kg, i.p.) or saline. Vaginal opening was recorded, and oestrous cyclicity was monitored immediately post puberty and again at 56-70 days. At 10 weeks of age, the ovaries were removed for immunostaining and RNA analysis. Neonatal exposure to LPS resulted in a significant delay puberty onset as well as destroyed expression of ovulation related genes...
September 8, 2017: Reproductive Toxicology
https://www.readbyqxmd.com/read/28860142/novel-therapeutic-roles-for-surfactant-inositols-and-phosphatidylglycerols-in-a-neonatal-piglet-ards-model-a-translational-study
#12
Dietmar Spengler, Supandi Winoto-Morbach, Sarah Kupsch, Christina Vock, Katharina Blöchle, Susanna Frank, Nele Rintz, Marie Diekötter, Harshavardhan Janga, Markus Weckmann, Sabine Fuchs, Andra B Schromm, Heinz Fehrenbach, Stefan Schütze, Martin F Krause
The biological and immune-protective properties of surfactant-derived phospholipids and phospholipid-subfractions in the context of neonatal inflammatory lung disease are widely unknown. Using a porcine neonatal triple-hit ARDS model (repeated airway lavage, overventilation, LPS instillation into airways), we assessed whether the supplementation of surfactant (poractant alfa, S) with inositol-derivatives (inositol-1,2,6-trisphosphate, IP3; phosphatidylinositol-3,5-bisphosphate, PIP2) or phosphatidylglycerol-subfractions (16:0/18:1-POPG; 18:1/18:1-DOPG) would result in improved clinical parameters, and sought to characterize changes in key inflammatory pathways behind these improvements...
August 31, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28838184/the-public-health-legacy-of-polio-eradication-in-africa
#13
Allen S Craig, Rustam Haydarov, Helena O'Malley, Michael Galway, Halima Dao, Ngashi Ngongo, Marie Therese Baranyikwa, Savita Naqvi, Nima S Abid, Carol Pandak, Amy Edwards
The legacy of polio in Africa goes far beyond the tragedies of millions of children with permanent paralysis. It has a positive side, which includes the many well-trained polio staff who have vaccinated children, conducted surveillance, tested stool specimens in the laboratories, engaged with communities, and taken care of polio patients. This legacy also includes support for routine immunization services and vaccine introductions and campaigns for other diseases. As polio funding declines, it is time to take stock of the resources made available with polio funding in Africa and begin to find ways to keep some of the talented staff, infrastructure, and systems in place to work on new public health challenges...
July 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28822225/altered-thymocyte-and-t-cell-development-in-neonatal-mice-with-hyperoxia-induced-lung-injury
#14
Sowmya Angusamy, Tamer Mansour, Mohammed Abdulmageed, Rachel Han, Brian C Schutte, John LaPres, Jack R Harkema, Said A Omar
BACKGROUND: The adaptive immune system of neonates is relatively underdeveloped. The thymus is an essential organ for adaptive T cell development and might be affected during the natural course of oxygen induced lung injury. The effect of prolonged hyperoxia on the thymus, thymocyte and T cell development, and its proliferation has not been studied extensively. METHODS: Neonatal mice were exposed to 85% oxygen (hyperoxia) or room air (normoxia) up to 28 days. Flow cytometry using surface markers were used to assay for thymocyte development and proliferation...
August 19, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28815644/role-of-%C3%AE-%C3%AE-t-cells-in-exacerbated-airway-inflammation-during-reinfection-of-neonatally-primed-mice-in-adulthood
#15
Jianqi Wu, Lei Xu, Xu Han, Haiyan Hu, Feifei Qi, Song Bai, Ruonan Chai, Yuee Teng, Beixing Liu
Age at primary infection with respiratory syncytial virus (RSV) is a crucial factor in determining the outcome of reinfection. However, how neonatal RSV infection affects the immune system and renders the host more susceptible to reinfection in later life is poorly understood. In the present study, by using BALB/c mice that were first infected with RSV as neonates, the role of γδ T cells in the development of airway inflammation during reinfection in adulthood was investigated. We found that neonatal RSV infection resulted in an aggravated infiltration of mononuclear cells in bronchoalveolar lavage (BAL) fluids, in parallel with a significant increase in the levels of type 2 cytokines in lungs on day 4 after reinfection...
August 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28814408/intrinsic-maturational-neonatal-immune-deficiencies-and-susceptibility-to-group-b-streptococcus-infection
#16
REVIEW
Michelle L Korir, Shannon D Manning, H Dele Davies
Although a normal member of the gastrointestinal and vaginal microbiota, group B Streptococcus (GBS) can also occasionally be the cause of highly invasive neonatal disease and is an emerging pathogen in both elderly and immunocompromised adults. Neonatal GBS infections are typically transmitted from mother to baby either in utero or during passage through the birth canal and can lead to pneumonia, sepsis, and meningitis within the first few months of life. Compared to the adult immune system, the neonatal immune system has a number of deficiencies, making neonates more susceptible to infection...
October 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/28813459/%C3%AE-2-microglobulin-gene-duplication-in-cetartiodactyla-remains-intact-only-in-pigs-and-possibly-confers-selective-advantage-to-the-species
#17
Thong Minh Le, Quy Van Chanh Le, Dung Minh Truong, Hye-Jeong Lee, Min-Kyeung Choi, Hyesun Cho, Hak-Jae Chung, Jin-Hoi Kim, Jeong-Tae Do, Hyuk Song, Chankyu Park
Several β2-microglobulin (B2M) -bound protein complexes undertake key roles in various immune system pathways, including the neonatal Fc receptor (FcRn), cluster of differentiation 1 (CD1) protein, non-classical major histocompatibility complex (MHC), and well-known MHC class I molecules. Therefore, the duplication of B2M may lead to an increase in the biological competence of organisms to the environment. Based on the pig genome assembly SSC10.2, a segmental duplication of ~45.5 kb, encoding the entire B2M protein, was identified in pig chromosome 1...
2017: PloS One
https://www.readbyqxmd.com/read/28812000/diagnostic-imaging-features-of-necrotizing-enterocolitis-a-narrative-review
#18
REVIEW
Francesco Esposito, Rosanna Mamone, Marco Di Serafino, Carmela Mercogliano, Valerio Vitale, Gianfranco Vallone, Patrizia Oresta
Necrotizing enterocolitis (NEC) is an inflammatory process, characterized by intestinal necrosis of variable extension, leading to perforation, generalized peritonitis and death. The classical pathogenetic theory focuses on mucosal damage related to a stress induced intestinal ischemia leading to mucosal injury and bacterial colonization of the wall. A more recent hypothesis emphasizes the role of immaturity of gastrointestinal and immune system, particularly of the premature, responsible of bowel wall vulnerability and suffering...
June 2017: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28798335/cd71-erythroid-suppressor-cells-impair-adaptive-immunity-against-bordetella-pertussis
#19
Afshin Namdar, Petya Koleva, Shima Shahbaz, Stacy Strom, Volker Gerdts, Shokrollah Elahi
Infant's immune system cannot control infection or respond to vaccination as efficiently as older individuals, a phenomenon that has been attributed to immunological immaturity. Recently, we challenged this notion and proposed the presence of actively immunosuppressive and physiologically enriched CD71(+) erythroid cells in neonates. Here we utilized Bordetella pertussis, a common neonatal respiratory tract pathogen, as a proof of concept to investigate the role of these cells in adaptive immunity. We observed that CD71(+) cells have distinctive immunosuppressive properties and prevent recruitment of immune cells to the mucosal site of infection...
August 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28783113/-omics-in-human-colostrum-and-mature-milk-looking-to-old-data-with-new-eyes
#20
REVIEW
Flaminia Bardanzellu, Vassilios Fanos, Alessandra Reali
Human Milk (HM) is the best source for newborn nutrition until at least six months; it exerts anti-inflammatory and anti-infective functions, promotes immune system formation and supports organ development. Breastfeeding could also protect from obesity, diabetes and cardiovascular disease. Furthermore, human colostrum (HC) presents a peculiar role in newborn support as a protective effect against allergic and chronic diseases, in addition to long-term metabolic benefits. In this review, we discuss the recent literature regarding "omics" technologies and growth factors (GF) in HC and the effects of pasteurization on its composition...
August 7, 2017: Nutrients
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