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https://www.readbyqxmd.com/read/28231658/-relationship-between-reproductive-history-and-preterm-births-in-the-last-pregnancy-in-shaanxi-province
#1
B W Qin, J Ying, Q Lei, P F Qu, F L Lei, J M Li, H Yan
Objective: To analyze the incidence of preterm delivery among single live neonates and the association between maternal reproductive history and preterm birth. Methods: A questionnaire survey was conducted on reproductive history among women at childbearing age who were selected through multi-stage stratified random sampling method in Shaanxi, during 2010-2013. Samples would include women at childbearing age and in pregnancy or having had definite pregnancy outcomes. Results: A total of 29 608 women at childbearing age with their infants, were studied...
February 10, 2017: Zhonghua Liu Xing Bing Xue za Zhi, Zhonghua Liuxingbingxue Zazhi
https://www.readbyqxmd.com/read/28230075/oxygen-impairs-oligodendroglial-development-via-oxidative-stress-and-reduced-expression-of-hif-1%C3%AE
#2
Christina Brill, Till Scheuer, Christoph Bührer, Stefanie Endesfelder, Thomas Schmitz
The premature increase of oxygen tension may contribute to oligodendroglial precursor cell (OPC) damage in preterm infants. Fetal OPCs are exposed to low oxygen tissue tensions not matched when cells are cultured in room air. Maturation (A2B5, O4, O1, MBP, CNP, arborization), oxidative stress (nitrotyrosine Western blot, NRF2 and SOD2 expression), apoptosis (TUNEL), proliferation (Ki67), and expression of transcription factors regulated by Hypoxia-Inducible-Factor-1-alpha (Hif-1α) expressed in OPCs (Olig1, Olig2, Sox9, Sox10) were assessed in rat OPCs and OLN93 cells cultured at 5% O2 and 21% O2...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28228969/prevention-and-treatment-of-neonatal-nosocomial-infections
#3
REVIEW
Jayashree Ramasethu
Nosocomial or hospital acquired infections threaten the survival and neurodevelopmental outcomes of infants admitted to the neonatal intensive care unit, and increase cost of care. Premature infants are particularly vulnerable since they often undergo invasive procedures and are dependent on central catheters to deliver nutrition and on ventilators for respiratory support. Prevention of nosocomial infection is a critical patient safety imperative, and invariably requires a multidisciplinary approach. There are no short cuts...
2017: Maternal Health, Neonatology and Perinatology
https://www.readbyqxmd.com/read/28228499/neonatal-morbidity-and-1-year-survival-of-extremely-preterm-infants
#4
Hans Jorgen Stensvold, Claus Klingenberg, Ragnhild Stoen, Dag Moster, Kristin Braekke, Hans Jorgen Guthe, Henriette Astrup, Siren Rettedal, Morten Gronn, Arild E Ronnestad
OBJECTIVE: To determine 1-year survival and major neonatal morbidities (intracranial hemorrhage grade >2, cystic periventricular leukomalacia, retinopathy of prematurity grade >2, necrotizing enterocolitis, severe bronchopulmonary dysplasia) among extremely preterm infants in Norway in 2013-2014, and to compare the results to the first Norwegian Extreme Prematurity Study 1999-2000 and similar contemporary European population-based studies. METHODS: Population-based study of all infants born at 22 through 26 weeks' gestation in Norway in 2013-2014...
February 22, 2017: Pediatrics
https://www.readbyqxmd.com/read/28227297/features-of-cerebral-oxygenation-detects-brain-injury-in-premature-infants
#5
John M O'Toole, Mmoloki Kenosi, Daragh Finn, Geraldine B Boylan, Eugene M Dempsey, John M O'Toole, Mmoloki Kenosi, Daragh Finn, Geraldine B Boylan, Eugene M Dempsey, Daragh Finn, Eugene M Dempsey, Mmoloki Kenosi, John M Otoole, Geraldine B Boylan
Babies born prematurely can develop brain injury within days after birth. Early identification of high-risk infants enables appropriate clinical care to mitigate potential lifelong disabilities. Near infra-red spectroscopy is an established technology that can provide continuous measurements of cerebral oxygen saturation (rcSO2) over this critical period. We develop a feature set of the rcSO2 signal for the purpose of detecting brain injury. Our feature set contains amplitude, spectral, and fractal dimension features within 5 frequency bands...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226920/measurement-of-force-applied-by-infant-tongue-to-the-nipple-during-sucking-and-investigation-of-the-mechanism-of-tongue-movement
#6
Eri Nishi, Yuiko Nagamatsu, Takuya Niikawa, Eri Nishi, Yuiko Nagamatsu, Takuya Niikawa, Eri Nishi, Yuiko Nagamatsu, Takuya Niikawa
In order to clarify the dynamic mechanisms involved in sucking by infants, we developed an artificial nipple with built-in force sensors and have measured the contact force between the tongue and the artificial nipple in infants including healthy, premature and low birth weight. In this study, we measured the force applied by the tongue on the artificial nipple in 10 healthy infants and in 10 infants who were also tube-fed and investigated the differences in dynamic actions between the two groups to extract factors involved in satisfactory sucking...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226744/toward-a-severity-index-for-rop-an-unsupervised-approach
#7
Peng Tian, Esra Ataer-Cansizoglu, Jayashree Kalpathy-Cramer, Susan Ostmo, Karyn Jonas, R V Paul Chan, J Peter Campbell, Michael F Chiang, Deniz Erdogmus, Peng Tian, Esra Ataer-Cansizoglu, Jayashree Kalpathy-Cramer, Susan Ostmo, Karyn Jonas, R V Paul Chan, J Peter Campbell, Michael F Chiang, Deniz Erdogmus, Michael F Chiang, Esra Ataer-Cansizoglu, Peng Tian, Deniz Erdogmus, J Peter Campbell, Jayashree Kalpathy-Cramer, R V Paul Chan, Susan Ostmo, Karyn Jonas
Retinopathy of prematurity (ROP) is a disease affecting low birth-weight infants and is the major cause of childhood blindness. Although accurate diagnosis is important, there is a high variability among expert decisions mostly due to subjective thresholds. Existing work focused on automated diagnosis of ROP. In this study, we construct a continuous severity index as an alternative to discrete classification. We follow an unsupervised approach by performing nonlinear dimensionality reduction. Instead of extracting several statistics of image features, each image is represented by the probability distribution of its features...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226653/lomb-algorithm-versus-fast-fourier-transform-in-heart-rate-variability-analyses-of-pain-in-premature-infants
#8
Anas Delane, Jorge Bohorquez, Subhanshu Gupta, Martin Schiavenato, Anas Delane, Jorge Bohorquez, Subhanshu Gupta, Martin Schiavenato, Martin Schiavenato, Jorge Bohorquez, Subhanshu Gupta, Anas Delane
Heart rate variability analysis is a promising method for measuring pain in premature infants. The Lomb algorithm was adapted and compared with fast Fourier transform (FFT) for the purposes of PSD estimation. Both FFT and the Lomb algorithm had similar low frequency (LF) estimation error rates. However, the Lomb algorithm had a significant smaller error rate than FFT when estimating high frequency (HF). In addition, the ECG signals of two premature infants in the newborn intensive care unit were analyzed while undergoing a routine heel stick, a common painful procedure...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226446/a-challenging-issue-detection-of-white-matter-hyperintensities-in-neonatal-brain-mri
#9
Baptiste Morel, Yongchao Xu, Alessio Virzi, Thierry Geraud, Catherine Adamsbaum, Isabelle Bloch, Baptiste Morel, Yongchao Xu, Alessio Virzi, Thierry Geraud, Catherine Adamsbaum, Isabelle Bloch, Alessio Virzi, Yongchao Xu, Thierry Geraud, Catherine Adamsbaum, Isabelle Bloch, Baptiste Morel
The progress of magnetic resonance imaging (MRI) allows for a precise exploration of the brain of premature infants at term equivalent age. The so-called DEHSI (diffuse excessive high signal intensity) of the white matter of premature brains remains a challenging issue in terms of definition, and thus of interpretation. We propose a semi-automatic detection and quantification method of white matter hyperintensities in MRI relying on morphological operators and max-tree representations, which constitutes a powerful tool to help radiologists to improve their interpretation...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28224332/association-of-single-nucleotide-polymorphisms-of-il23r-and-il17-with-necrotizing-enterocolitis-in-premature-infants
#10
Jiayi Tian, Yanjun Liu, Yanfang Jiang, Haohan Zhou, Tong Zhu, Xiaoqi Zhao, Liping Peng, Chaoying Yan
Necrotizing enterocolitis (NEC) is a severe gastrointestinal inflammatory disease in neonates, particularly in preterm infants. The interleukin (IL) 23/IL17 axis has been shown to play an important role in the gastrointestinal inflammation. However, the association of gene polymorphisms in the IL23/IL17 axis and the development of NEC remains unknown. In this study, we aimed to explore a possible genetic role of IL23R and IL17 in the development of NEC. We identified single nucleotide polymorphisms (SNPs) in IL23R (rs10889677), IL17A (rs2275913), and IL17F (rs763780) by polymerase chain reaction and Sanger sequencing...
February 21, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28223372/perspectives-of-low-socioeconomic-status-mothers-of-premature-infants
#11
Elizabeth Enlow, Laura J Faherty, Sara Wallace-Keeshen, Ashley E Martin, Judy A Shea, Scott A Lorch
BACKGROUND AND OBJECTIVES: Transitioning premature infants from the NICU to home is a high-risk period with potential for compromised care. Parental stress is high, and families of low socioeconomic status may face additional challenges. Home visiting programs have been used to help this transition, with mixed success. We sought to understand the experiences of at-risk families during this transition to inform interventions. METHODS: Mothers of infants born at <35 weeks' gestation, meeting low socioeconomic status criteria, were interviewed by telephone 30 days after discharge to assess caregiver experiences of discharge and perceptions of home visitors (HVs)...
February 21, 2017: Pediatrics
https://www.readbyqxmd.com/read/28219740/histopathological-analysis-of-retinopathy-of-prematurity-after-intravitreal-bevacizumab
#12
Carson R Bee, Christopher Burris, Heather A D Potter, Devasis Reddy, Kenneth B Simons, Deborah M Costakos
We report the case of a premature infant with end-organ failure who developed high-risk retinopathy of prematurity (ROP) bilaterally and was treated with intravitreal bevacizumab (IVB) injection therapy with regression noted on follow-up clinical examination. The infant died 3 weeks after IVB injection therapy. Histopathological analysis was conducted on bilateral globes and revealed persistent preretinal vessels.
February 17, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28218369/effect-of-intravitreal-aflibercept-on-central-retinal-arterial-blood-flow-in-type-1-retinopathy-of-prematurity
#13
Emine A Sukgen, Gökhan Söker, Yusuf Koçluk, Bozkurt Gülek
PURPOSE: To evaluate the blood flow changes of the central retinal artery measured with color Doppler imaging (CDI) in infants receiving intravitreal aflibercept (IVA) for treatment of type 1 retinopathy of prematurity (ROP). METHODS: Patients with type 1 ROP were assessed prospectively by CDI following IVA. Color Doppler imaging was used to measure the peak systolic velocity, end diastolic velocity (EDV), pulsatility index (PI), and resistivity index (RI) of the central retinal artery (CRA) before IVA injection and 1 hour, 1 week, and 1 month after injection...
February 8, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28213471/attenuation-of-endoplasmic-reticulum-stress-by-caffeine-ameliorates-hyperoxia-induced-lung-injury
#14
Ru-Jeng Teng, Xigang Jing, Teresa Michalkiewicz, Adeleye J Afolayan, Tzong-Jin Wu, Girija G Konduri
Rodent pups exposed to hyperoxia develop lung changes similar to bronchopulmonary dysplasia (BPD) in extremely premature infants. Oxidative stress from hyperoxia can injure developing lungs through endoplasmic reticulum (ER) stress. Early caffeine treatment decreases the rate of BPD, but the mechanisms remain unclear. We hypothesized that caffeine attenuates hyperoxia-induced lung injury through its chemical chaperone property. Sprague-Dawley rat pups were raised either in 90% (hyperoxia) or 21% (normoxia) oxygen from postnatal day 1 (P1) to postnatal day 10 (P10) and then recovered in 21% oxygen until P21...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28211648/cognitive-development-in-preterm-infants-multi-faceted-deficits-reflect-vulnerability-of-rigorous-neurodevelopmental-pathways
#15
Jessie R Maxwell, Tracylyn R Yellowhair, Akosua Y Oppong, Jenny E Camacho, Jean R Lowe, Lauren L Jantzie, Robin K Ohls
Prematurity remains the major cause of neonatal morbidity and mortality, with 15 million preterm births occurring worldwide in 2010. Infants born less than 37 weeks gestation are at high risk of abnormal neurodevelopmental outcomes, given that the central nervous system is extremely sensitive to an abnormal intra- and extra-uterine environment. Children born preterm have multiple neurodevelopmental sequelae involving dynamic and complex cognitive deficits. Former preterm infants have difficulty with each domain of cognition, including executive function, language, learning and memory, complex attention, perceptual-motor function and social cognition when compared to children born at term...
February 17, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28211317/primary-human-cytomegalovirus-hcmv-infection-in-pregnancy
#16
Horst Buxmann, Klaus Hamprecht, Matthias Meyer-Wittkopf, Klaus Friese
BACKGROUND: In 0.5-4% of pregnancies, the prospective mother sustains a primary infection with human cytomegalovirus (HCMV). An HCMV infection of the fetus in the first or second trimester can cause complex post-encephalitic impairment of the infant brain, leading to motor and mental retardation, cerebral palsy, epilepsy, retinal defects, and progressive hearing loss. METHODS: This review is based on pertinent publications from January 2000 to October 2016 that were retrieved by a selective search in PubMed employing the terms "cytomegalovirus and pregnancy" and "congenital cytomegalovirus...
January 27, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28210519/achondroplasia-in-the-premature-infant-an-elusive-diagnosis-in-the-neonatal-intensive-care-unit
#17
Kimberly E Fagen, Anna R Blask, Eva I Rubio, Dorothy I Bulas
Achondroplasia is a difficult prenatal diagnosis to make before the late second and third trimester. We describe two cases where an infant was born prematurely with no overt signs of achondroplasia. Despite multiple chest and abdominal radiographs during the neonatal course, the diagnosis was not made until term equivalent age was reached. We retrospectively reviewed these two cases to highlight the elusive findings of achondroplasia in the premature infant.
January 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28210010/evaluation-and-treatment-of-anemia-in-premature-infants
#18
Edo Hasanbegovic, Nermana Cengic, Snijezana Hasanbegovic, Jasmina Heljic, Ismail Lutolli, Edin Begic
INTRODUCTION: Anemia in preterm infants is the pathophysiological process with greater and more rapid decline in hemoglobin compared to the physiological anemia in infants. There is a need for transfusions and administration of human recombinant erythropoietin. AIM: To determine the frequency of anemia in premature infants at the Pediatric Clinic, University Clinical Center Sarajevo, as well as parameter values in the blood count of premature infants and to explore a relationship between blood transfusions with the advent of intraventricular hemorrhage (determine treatment outcome in preterm infants)...
December 2016: Medical Archives
https://www.readbyqxmd.com/read/28209491/the-preterm-cervix-reveals-a-transcriptomic-signature-in-the-presence-of-premature-pre-labor-rupture-of-membranes
#19
Sofia Makieva, Aurelija Dubicke, Sara F Rinaldi, Emma Fransson, Gunvor Ekman-Ordeberg, Jane E Norman
BACKGROUND: Premature Pre-labor Rupture of Fetal Membranes (PPROM) accounts for 30% of all premature births and is associated with detrimental long-term infant outcomes. Premature cervical remodeling, facilitated by matrix metalloproteinases (MMPs), may trigger rupture at the zone of the fetal membranes overlying the cervix. The similarities and differences underlying cervical remodeling in PPROM and spontaneous preterm labor with intact membranes (PTL) are unexplored. OBJECTIVES: We aimed a) to perform the first transcriptomic assessment of the preterm human cervix to identify differences between PPROM and PTL and b) to compare the enzymatic activities of MMP-2 and 9 between PPROM and PTL...
February 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28207964/impaired-nephrogenesis-in-neonatal-rats-with-oxygen-induced-retinopathy
#20
Mayu Nakagawa, Naoto Nishizaki, Amane Endo, Tomonosuke Someya, Yuta Saito, Akira Mizutani, Taichi Hara, Yayoi Murano, Koji Sakuraya, Satoshi Hara, Daisuke Umino, Daishi Hirano, Shuichiro Fujinaga, Yoshiyuki Ohtomo, Toshiaki Shimizu
OBJECTIVES: Preterm neonates are born while nephrogenesis is ongoing and are commonly exposed to factors in a hyperoxic environment that can impair renal development. Oxidative stress has also been implicated in the development of retinopathy of prematurity (ROP). The rat model of oxygen-induced retinopathy (OIR) is the most clinically relevant model of ROP because its biologic features closely resemble those of ROP in preterm infants. We investigated impaired renal development in a rat model of OIR...
February 16, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
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