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Neonatal infectious disease

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https://www.readbyqxmd.com/read/29673285/tlr-agonist-combinations-that-stimulate-th-type-i-polarizing-responses-from-human-neonates
#1
Naveen Surendran, Andrea Simmons, Michael E Pichichero
Each year millions of neonates die due to vaccine preventable infectious diseases. Our study seeks to develop novel neonatal vaccines and improve immunogenicity of early childhood vaccines by incorporating TLR agonist-adjuvant combinations that overcome the inherent neonatal Th2 bias and stimulate Th1 polarizing response from neonatal APCs. We systematically stimulated cord blood mononuclear cells with single and multiple combinations of TLR agonists and measured levels of IL-12p70, IFN-γ, IFN-α, IL-10, IL-13, TNF-α, IL-6 and IL-1β from cell culture supernatants...
January 1, 2018: Innate Immunity
https://www.readbyqxmd.com/read/29671238/dairy-calf-rearing-unit-and-infectious-diseases-diarrhea-outbreak-by-bovine-coronavirus-as-a-model-for-the-dispersion-of-pathogenic-microorganisms
#2
Amauri Alcindo Alfieri, Juliane Ribeiro, Luciana de Carvalho Balbo, Elis Lorenzetti, Alice Fernandes Alfieri
Dairy calf rearing unit is a management system that is only recently being implemented by some milk producer's cooperatives in southern Brazil. However, aspects related to the health profile of the heifer calves that arrive in the rearing unit as well as about biosecurity practices and microbiological challenges have not yet been evaluated in this rearing system in a tropical country. Diarrhea is the main and most frequent consequence of enteric infections in newborn calves. This study, through some etiological and epidemiological characteristics of an outbreak of neonatal diarrhea, has the aim to alert to the possibility of pathogenic microorganism spread in a dairy heifer calf rearing unit...
April 18, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29658450/-influence-of-acute-pancreatitis-in-pregnancy-on-pregnancy-outcomes-and-neonates
#3
Shu-Juan Fan, Jun-Xi Xiang, Mi Xiao, Fang-Hui Wang, Xiao-Jie Lin, Xi-Hui Zhou, Ting Ai, Li Liu
OBJECTIVE: To study the influence of acute pancreatitis in pregnancy (APIP) on pregnancy outcomes and neonates. METHODS: A retrospective analysis was performed for 33 APIP patients and 31 neonates born alive. RESULTS: Of the 33 APIP patients, 26 (79%) developed APIP in the late pregnancy. Fourteen (45%) patients had hyperlipidemic APIP, 13 (42%) had biliary APIP, and 4 (13%) had other types of APIP. According to the severity, 22 (67%) were mild APIP, 5 (15%) were moderate APIP, and 6 were severe APIP...
April 2018: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29600241/a-standardized-needs-assessment-tool-to-inform-the-curriculum-development-process-for-pediatric-resuscitation-simulation-based-education-in-resource-limited-settings
#4
Nicole Shilkofski, Amanda Crichlow, Julie Rice, Leslie Cope, Ye Myint Kyaw, Thazin Mon, Sarah Kiguli, Julianna Jung
Introduction: Under five mortality rates (UFMR) remain high for children in low- and middle-income countries (LMICs) in the developing world. Education for practitioners in these environments is a key factor to improve outcomes that will address United Nations Sustainable Development Goals 3 and 10 (good health and well being and reduced inequalities). In order to appropriately contextualize a curriculum using simulation, it is necessary to first conduct a needs assessment of the target learner population...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29579158/early-bcg-denmark-and-neonatal-mortality-among-infants-weighing-2500-g-a-randomized-controlled-trial
#5
Sofie Biering-Sørensen, Peter Aaby, Najaaraq Lund, Ivan Monteiro, Kristoffer Jarlov Jensen, Helle Brander Eriksen, Frederik Schaltz-Buchholzer, Anne Sofie Pinstrup Jørgensen, Amabelia Rodrigues, Ane Bærent Fisker, Christine Stabell Benn
Background: BCG vaccine may reduce overall mortality by increasing resistance to nontuberculosis infections. In 2 randomized trials in Guinea-Bissau of early BCG-Denmark (Statens Serum Institut) given to low-weight (LW) neonates (<2500 g at inclusion) to reduce infant mortality rates, we observed a very beneficial effect in the neonatal period. We therefore conducted the present trial to test whether early BCG-Denmark reduces neonatal mortality by 45%. We also conducted a meta-analysis of the 3 BCG-Denmark trials...
October 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29577086/katharoseq-enables-high-throughput-microbiome-analysis-from-low-biomass-samples
#6
Jeremiah J Minich, Qiyun Zhu, Stefan Janssen, Ryan Hendrickson, Amnon Amir, Russ Vetter, John Hyde, Megan M Doty, Kristina Stillwell, James Benardini, Jae H Kim, Eric E Allen, Kasthuri Venkateswaran, Rob Knight
Microbiome analyses of low-biomass samples are challenging because of contamination and inefficiencies, leading many investigators to employ low-throughput methods with minimal controls. We developed a new automated protocol, KatharoSeq (from the Greek katharos [clean]), that outperforms single-tube extractions while processing at least five times as fast. KatharoSeq incorporates positive and negative controls to reveal the whole bacterial community from inputs of as few as 50 cells and correctly identifies 90...
May 2018: MSystems
https://www.readbyqxmd.com/read/29572587/neonatal-abstinence-syndrome-nas-in-southwestern-border-states-examining-trends-population-correlates-and-implications-for-policy
#7
Khaleel S Hussaini, Luigi F Garcia Saavedra
Introduction Neonatal abstinence syndrome (NAS) is withdrawal syndrome in newborns following birth and is primarily caused by maternal drug use during pregnancy. This study examines trends, population correlates, and policy implications of NAS in two Southwest border states. Materials and Methods A cross-sectional analysis of Hospital Inpatient Discharge Data (HIDD) was utilized to examine the incidence of NAS in the Southwest border states of Arizona (AZ) and New Mexico (NM). All inpatient hospital births in AZ and NM from January 1, 2008 through December 31, 2013 with ICD9-CM codes for NAS (779...
March 23, 2018: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/29544498/a-comparison-between-health-research-output-and-burden-of-disease-in-arab-countries-evidence-from-palestine
#8
Loai Albarqouni, Khamis Elessi, Niveen M E Abu-Rmeileh
BACKGROUND: Research conducted on conditions responsible for the greatest disease burden should be given the highest priority, particularly in resource-limited settings. The present study aimed to assess the research output in relation to disease burden in Palestine and to identify the conditions which are under- or over-investigated, if any. METHODS: We searched PubMed and Scopus for reports of original research relevant to human health or healthcare authored by researchers affiliated with Palestinian institutions and published between January 2000 and December 2015...
March 15, 2018: Health Research Policy and Systems
https://www.readbyqxmd.com/read/29520354/group-b-streptococcal-maternal-colonization-and-neonatal-disease-molecular-mechanisms-and-preventative-approaches
#9
REVIEW
Kathryn A Patras, Victor Nizet
Group B Streptococcus (GBS) colonizes the gastrointestinal and vaginal epithelium of a significant percentage of healthy women, with potential for ascending intrauterine infection or transmission during parturition, creating a risk of serious disease in the vulnerable newborn. This review highlights new insights on the bacterial virulence determinants, host immune responses, and microbiome interactions that underpin GBS vaginal colonization, the proximal step in newborn infectious disease pathogenesis. From the pathogen perspective, the function GBS adhesins and biofilms, β-hemolysin/cytolysin toxin, immune resistance factors, sialic acid mimicry, and two-component transcriptional regulatory systems are reviewed...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29505478/retrospective-analysis-of-children-with-%C3%AE-1-antitrypsin-deficiency
#10
Atakan Comba, Fatma Demirbaş, Gönül Çaltepe, Esra Eren, Ayhan G Kalayci
BACKGROUND: α-1 Antitrypsin (AAT) deficiency is the most frequently occurring genetic liver disorder. The association among classical α-1 antitrypsin deficiency (AATD), chronic liver disease, and cirrhosis is common in adult patients but rare in children. AIM: To assess the clinical characteristics of children with AATD and to compare symptoms between homozygous and heterozygous children. MATERIALS AND METHODS: The study included 20 children who were found to have mutant Pi alleles...
March 2, 2018: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/29501938/the-strong-correlation-between-neonatal-early-onset-group-b-streptococcal-disease-and-necrotizing-enterocolitis
#11
Irene A Stafford, Eliza Rodrigue, Alexandra Berra, Wesley Adams, Asha J Heard, Joseph L Hagan, Shawn J Stafford
BACKGROUND: Necrotizing enterocolitis (NEC) is a leading cause of newborn gastrointestinal emergencies, affecting 1-3 per 1000 live births. Although NEC has been linked to a microbial etiology, associations with maternal intrapartum and resultant newborn early-onset invasive Group B streptococcus (EO-GBS) have been weakly defined. OBJECTIVE: The study aim was to determine the relationship between EO-GBS and NEC. STUDY DESIGN: Data from 2008 to 2015 were collected from pediatric records with ICD diagnosis codes consistent with all stages of NEC, with the exception of neonatal EO-GBS data (only available 2011-2015)...
April 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/29495215/-progress-on-influencing-factors-regarding-the-neonatal-group-b-streptococcal-infectious-diseases
#12
X Hong, H Yu, B Wang
Group B streptococcus (GBS) is one of the severe pathogenic bacteria during the perinatal period, both on pregnant women and newborns. GBS infection may lead to pneumonia, septicemia, meningitis or other severe disease, even death in neonates. Although only 1%-2% infections will develop into GBS disease among the neonates, the etiological mechanism of which is worth researching. This review summarizes the possible factors related to GBS infection or occurrence of the disease, including the risk in gestation period (for example, colonization of GBS on vagina of pregnant women, preterm birth or premature rupture of fetal membranes and so on), related pathogens (bacteria strains, loads or virulence), immune level (inflammatory factor or neutralizing anticytokine auto-Abs), gene defect or primary immunodeficiencies of the hosts...
February 10, 2018: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/29474132/who-s-the-target-mother-or-baby
#13
Alisa Kachikis, Linda O Eckert, Janet Englund
Maternal immunization for prevention of morbidity and mortality of pregnant women and their neonates due to infectious diseases is ongoing worldwide. The complexity of vaccine research and development in this population is challenging. Not only do vaccines for pregnant women require evidence of immunogenicity, potency, stability, and limited reactogenicity, they must also provide efficacy in decreasing morbidity for the pregnant woman, her fetus, and the neonate, demonstrate safety or lack of evidence of harm, and offer benefit or potential benefit of vaccination during pregnancy...
February 23, 2018: Viral Immunology
https://www.readbyqxmd.com/read/29467722/high-incidence-of-pathogenic-streptococcus-agalactiae-st485-strain-in-pregnant-puerperal-women-and-isolation-of-hyper-virulent-human-cc67-strain
#14
Liping Li, Rui Wang, Yan Huang, Ting Huang, Fuguang Luo, Weiyi Huang, Xiuying Yang, Aiying Lei, Ming Chen, Xi Gan
Group B streptococcus (GBS) is the major pathogen causing diseases in neonates, pregnant/puerperal women, cows and fish. Recent studies have shown that GBS may be infectious across hosts and some fish GBS strain might originate from human. The purpose of this study is to investigate the genetic relationship of CC103 strains that recently emerged in cows and humans, and explore the pathogenicity of clinical GBS isolates from human to tilapia. Ninety-two pathogenic GBS isolates were identified from 19 patients with different diseases and their evolution and pathogenicity to tilapia were analyzed...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29453157/-the-spanish-society-of-paediatric-infectious-diseases-guidelines-on-the-prevention-diagnosis-and-treatment-of-neonatal-herpes-simplex-infections
#15
(no author information available yet)
Neonatal herpes simplex virus infections are rare, but are associated with significant morbidity and mortality. Most newborns acquire herpes simplex virus infection in the peripartum period. For peripartum transmission to occur, women must be shedding the virus in their genital tracts symptomatically or asymptomatically around the time of delivery. There are evidence-based interventions in pregnancy to prevent the transmission to the newborn. Caesarean section should be performed in the presence of herpetic lesions, and antiviral prophylaxis in the last weeks of pregnancy is recommended to suppress genital tract herpes simplex virus at the time of delivery...
February 13, 2018: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/29433696/antibio-gouvernance-en-n%C3%A3-onatalogie
#16
E Launay, C Gras-Le Guen, J Caillon, C Flamant, D Navas, P Ovetchkine
Rational use of antibiotic has become a national and international health priority to fight against the emergence of multiresistant bacteria. Neonates are particularly exposed to antibiotic treatments because of their high susceptibility to severe infection and the lack of specificity of sepsis signs that make diagnosis difficult. This population is also particularly susceptible to microbiota disruption due to antibiotic treatment. Implementation of antibiotic stewardship in neonate is then an urgent need. According to a literature review, principles of antibiotic stewardship implementation in neonate are based on: (i) a multidisciplinary team comprising infectious disease specialists and aware of neonatal specificities (diagnosis, bacterial epidemiology, pharmacology) ; (ii) clear and easy-to-evaluate goals discussed a priori with neonatologists ; (iii) short-term assessment of the impact on antibiotic consumption and antimicrobial resistance ; (iv) enablement of the healthcare professionals within the ward to enhance the sustainability and (v) support from the institution...
December 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29423318/pregnancy-and-infection-using-disease-pathogenesis-to-inform-vaccine-strategy
#17
REVIEW
Meghan S Vermillion, Sabra L Klein
Vaccination is the mainstay of preventative medicine for many infectious diseases. Pregnant women, unborn fetuses, and neonates represent three at-risk populations that can be simultaneously protected by strategic vaccination protocols. Because the pathogenesis of different infectious microbes varies based on tissue tropism, timing of infection, and host susceptibility, the goals of immunization are not uniform across all vaccines. Mechanistic understanding of infectious disease pathogenesis and immune responses is therefore essential to inform vaccine design and the implementation of appropriate immunization protocols that optimize protection of pregnant women, fetuses, and neonates...
2018: NPJ Vaccines
https://www.readbyqxmd.com/read/29408912/effect-of-maternal-height-on-caesarean-section-and-neonatal-mortality-rates-in-sub-saharan-africa-an-analysis-of-34-national-datasets
#18
Esther Arendt, Neha S Singh, Oona M R Campbell
RATIONALE: The lifecycle perspective reminds us that the roots of adult ill-health may start in-utero or in early childhood. Nutritional and infectious disease insults in early life, the critical first 1000 days, are associated with stunting in childhood, and subsequent short adult stature. There is limited or no opportunity for stunted children above 2 years of age to experience catch-up growth. Some previous research has shown short maternal height to lead to adverse birth outcomes...
2018: PloS One
https://www.readbyqxmd.com/read/29392870/swine-enteric-coronavirus-disease-a-review-of-4%C3%A2-years-with-porcine-epidemic-diarrhoea-virus-and-porcine-deltacoronavirus-in-the-united-states-and-canada
#19
REVIEW
M C Niederwerder, R A Hesse
Swine enteric coronaviruses, including porcine epidemic diarrhoea virus (PEDV) and porcine deltacoronavirus (PDCoV), have emerged and spread throughout the North American swine industry over the last four years. These diseases cause significant losses within the pork industry and within the first year after PEDV introduction, approximately 10% of the US herd died due to the disease. Similar to other enteric coronaviruses, such as transmissible gastroenteritis virus (TGEV), these emerging swine enteric coronavirus diseases (SECD) are age-dependent, with high morbidity and mortality in neonatal pigs...
February 2, 2018: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29384054/toll-like-receptor-4-a-new-target-for-preterm-labour-pharmacotherapies
#20
Sarah A Robertson, Hanan H Wahid, Peck Yin Chin, Mark R Hutchinson, Lachlan M Moldenhauer, Jeffrey A Keelan
Inflammatory activation, a major driver of preterm birth and subsequent neonatal morbidity, is an attractive pharmacological target for new preterm birth therapeutics. Inflammation elicited by intraamniotic infection is causally associated with preterm birth, particularly in infants delivered ≤34 weeks' gestation. However, sterile triggers of PTB, including placental ischaemic injury, uterine distention, cervical disease, or imbalance in the immune response, also act through inflammatory mediators released in response to tissue damage...
January 30, 2018: Current Pharmaceutical Design
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