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vitamine A Neonates

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https://www.readbyqxmd.com/read/28446959/gestational-vitamin-d-deficiency-and-autism-spectrum-disorder
#1
Anna A E Vinkhuyzen, Darryl W Eyles, Thomas H J Burne, Laura M E Blanken, Claudia J Kruithof, Frank Verhulst, Tonya White, Vincent W Jaddoe, Henning Tiemeier, John J McGrath
BACKGROUND: There is growing interest in linking vitamin D deficiency with autism spectrum disorders (ASDs). The association between vitamin D deficiency during gestation, a critical period in neurodevelopment, and ASD is not well understood. AIMS: To determine the association between gestational vitamin D status and ASD. METHOD: Based on a birth cohort (n=4334), we examined the association between 25-hydroxyvitamin D (25OHD), assessed from both maternal mid-gestation sera and neonatal sera, and ASD (defined by clinical records; n=68 cases)...
March 2017: BJPsych Open
https://www.readbyqxmd.com/read/28440468/vitamin-d-attenuates-hyperoxia-induced-lung-injury-through-downregulation-of-toll-like-receptor%C3%A2-4
#2
Li Yao, Yongyan Shi, Xinyi Zhao, Ana Hou, Yujiao Xing, Jianhua Fu, Xindong Xue
With considerable morbidity and mortality, bronchopulmonary dysplasia (BPD) is a focus of attention in neonatology. Hyperoxia-induced lung injury has long been used as a model of BPD. Among all the signaling pathways involved, Toll-like receptor 4 (TLR4) has been demonstrated to play an important role, and is known to be regulated by vitamin D. This study aimed at elucidating the effect of vitamin D on hyperoxia-induced lung injury and the role of TLR4 in the process. Vitamin D was administered to hyperoxia-treated neonatal rats to investigate changes in the morphology of lungs and expression of pro-inflammatory cytokines, apoptotic proteins and TLR4...
April 21, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28430709/vitamin-d3-repressed-astrocyte-activation-following-lipopolysaccharide-stimulation-in-vitro-and-in-neonatal-rats
#3
Ke-Ping Jiao, Shao-Min Li, Wen-Yan Lv, Ming-Liang Jv, Hai-Yan He
Vitamin D3 has been reported to be an immunity modulator and high levels of vitamin D3 are correlated with a decreased risk for developing diseases in the central nervous system. Astrocytes are important immune cells and contribute toward inflammation during neurological diseases. The vitamin D receptor has been reported to be expressed in astrocytes; however, the effect of vitamin D3 on astrocyte activation has not been studied. Here, we found that lipopolysaccharide stimulation in astrocytes could enhance the expression of vitamin D receptor and Cyp27B1, which encodes the enzyme for converting vitamin D3 into its active form...
April 20, 2017: Neuroreport
https://www.readbyqxmd.com/read/28420012/vitamin-b6-responsive-epilepsy-due-to-a-novel-kcnq2-mutation
#4
Kerstin Alexandra Klotz, Johannes R Lemke, Rudolf Korinthenberg, Julia Jacobs
Mutations in KCNQ2, encoding for subunits of potassium channels, are known to cause neonatal epileptic encephalopathy (NEE). Therapeutic options for these children are often limited. Recently, there are indications that some patients with KCNQ2 NEE show seizure response to vitamin B6 (VB6) therapy. We present a young infant with severe KCNQ2 encephalopathy resulting from a novel de novo mutation (c.1023G>C; p.(Gln341His)). In our patient, VB6 responsiveness could be demonstrated clearly by remarkable seizure-response to VB6 therapy and seizure exacerbation to discontinuation of VB6 therapy...
April 18, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28419564/does-single-mega-dose-vitamin-a-in-early-neonatal-period-reduce-mortality-during-infancy-in-low-and-middle-income-countries
#5
Sindhu Sivanandan, M Jeeva Sankar
No abstract text is available yet for this article.
April 17, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28412847/circumcision-bleeding-complications-neonatal-intensive-care-infants-compared-to-those-in-the-normal-newborn-nursery
#6
Abigail R Litwiller, Courtney Browne, David M Haas
PURPOSE: To determine if a significant difference exists in the bleeding complications following circumcision in neonates admitted to neonatal intensive care unit (NICU) versus the normal newborn nursery (NNN). MATERIALS AND METHODS: Observational cohort study of 260 infants undergoing circumcision with Gomco clamp. Vitamin K was given to neonates at delivery. Demographic data, procedural characteristics, bleeding complications, and interventions were recorded. The bleeding rates of the two groups were compared using chi square...
April 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28397065/referral-patterns-and-factors-influencing-age-at-admission-of-infants-with-cholestasis-in-india
#7
Gopinathan Mathiyazhagan, Barath Jagadisan
OBJECTIVES: To define the recognition, age at admission, referral time and referral pattern of neonatal cholestasis in India. METHODS: This prospective, observational study was conducted from February 2015 through March 2016 in the Pediatric gastroenterology unit of JIPMER, Pondicherry in infants with cholestasis < 6 mo of age. RESULTS: Among 64 infants, median age of admission was 52 d (IQR 28-63 d). Fifty of sixty four infants (78.1%) came with parent-reported cholestasis-related symptoms of either jaundice alone (57...
April 11, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28394766/risks-and-benefits-of-swaddling-healthy-infants-an-integrative-review
#8
Antonia M Nelson
BACKGROUND: Swaddling has been practiced since antiquity; however, there is controversy about its safety. OBJECTIVES: The purpose of this review is to update and build upon previous reviews and synthesize evidence on risks and benefits of swaddling in healthyterm, near-term, or older infants. DATA SOURCES: MEDLINE (1960-May 13, 2016) and CINAHL (1963-May 13, 2016) searches were conducted, relevant articles retrieved, and citation lists reviewed for other references...
April 7, 2017: MCN. the American Journal of Maternal Child Nursing
https://www.readbyqxmd.com/read/28391250/confirmation-of-mutations-in-prosc-as-a-novel-cause-of-vitamin-b6-dependent-epilepsy
#9
Barbara Plecko, Markus Zweier, Anaïs Begemann, Deborah Mathis, Bernhard Schmitt, Pasquale Striano, Martina Baethmann, Stella Maria Vari, Francesca Beccaria, Federico Zara, Lisa M Crowther, Pascal Joset, Heinrich Sticht, Sorina Mihaela Papuc, Anita Rauch
Vitamin-B6-dependent epilepsies are a heterogenous group of treatable disorders due to mutations in several genes (ALDH7A1, PNPO, ALPL or ALDH4A1). In neonatal seizures, defects in ALDH7A1 and PNPO explain a major fraction of cases. Very recently biallelic mutations in PROSC were shown to be a novel cause in five families. We identified four further unrelated patients harbouring a total of six different mutations, including four novel disease mutations. Vitamin B6 plasma profiles on pyridoxine did not enable the differentiation of patients with PROSC mutations...
April 8, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/28390070/characterization-of-the-fecal-bacterial-microbiota-of-healthy-and-diarrheic-dairy-calves
#10
D E Gomez, L G Arroyo, M C Costa, L Viel, J S Weese
BACKGROUND: Neonatal diarrhea accounts for more than 50% of total deaths in dairy calves. Few population-based studies of cattle have investigated how the microbiota is impacted during diarrhea. OBJECTIVES: To characterize the fecal microbiota and predict the functional potential of the microbial communities in healthy and diarrheic calves. METHODS: Fifteen diarrheic calves between the ages of 1 and 30 days and 15 age-matched healthy control calves were enrolled from 2 dairy farms...
April 7, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28389419/rationale-and-design-of-khuzestan-vitamin-d-deficiency-screening-program-in-pregnancy-a-stratified-randomized-vitamin-d-supplementation-controlled-trial
#11
Maryam Rostami, Fahimeh Ramezani Tehrani, Masoumeh Simbar, Farhad Hosseinpanah, Hamid Alavi Majd
BACKGROUND: Although there have been marked improvements in our understanding of vitamin D functions in different diseases, gaps on its role during pregnancy remain. Due to the lack of consensus on the most accurate marker of vitamin D deficiency during pregnancy and the optimal level of 25-hydroxyvitamin D, 25(OH)D, for its definition, vitamin D deficiency assessment during pregnancy is a complicated process. Besides, the optimal protocol for treatment of hypovitaminosis D and its effect on maternal and neonatal outcomes are still unclear...
April 7, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28381532/single-high-dose-vitamin-a-supplementation-to-neonatal-piglets-results-in-a-transient-dose-response-in-extrahepatic-organs-and-sustained-increases-in-liver-stores
#12
Bryan M Gannon, Christopher R Davis, Nivedita Nair, Michael Grahn, Sherry A Tanumihardjo
Background: Neonatal vitamin A (VA) supplementation is being evaluated as a public health policy for preventing infant mortality, but inconsistencies in mortality trials demand mechanistic work to determine biological plausibility.Objectives: We investigated the absorption, distribution, and storage of single large oral VA doses administered shortly after birth.Methods: Fifty pregnant sows (Sus scrofas domesticas) were fed a VA-free diet. Male and female newborn piglets (n = 313) were orally administered 0, 25,000, 50,000, or 200,000 IU VA in oil within 12 h of birth when mean ± SD weight was 1...
April 5, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28377269/multivitamin-use-and-adverse-birth-outcomes-in-high-income-countries-a-systematic-review-and-meta-analysis
#13
REVIEW
Hanne T Wolf, Hanne K Hegaard, Lene D Huusom, Anja B Pinborg
BACKGROUND: In high-income countries, a healthy diet is widely accessible. However, a change toward a poor-quality diet with a low nutritional value in high-income countries has led to an inadequate vitamin intake during pregnancy. OBJECTIVE: We conducted a systematic review and meta-analysis to evaluate the association between multivitamin use among women in high-income countries and the risk of adverse birth outcomes (preterm birth [primary outcome], low birthweight, small for gestational age, stillbirth, neonatal death, perinatal mortality, and congenital anomalies without further specification)...
April 2, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28368538/combined-deletion-of-the-vitamin-d-receptor-and-calcium-sensing-receptor-delays-wound-re-epithelialization
#14
Yuko Oda, Lizhi Hu, Thai Nguyen, Chak Fong, Chia-Ling Tu, Daniel D Bikle
When the skin is injured, keratinocytes proliferate, migrate, and differentiate to regenerate the epidermis. We recently showed that ablation of the vitamin D receptor (Vdr) in keratinocytes delays wound re-epithelialization in mice also fed a low calcium diet, implicating a cooperative role of Vdr and calcium signaling in this process. In this study we examined the role of vitamin D and calcium signaling in wound healing by deleting their receptors, Vdr and the calcium sensing receptor (Casr). Gene expression profiling of neonatal epidermis lacking both Vdr and Casr (DKO) specifically in keratinocytes revealed that DKO affects a number of pathways relevant to wound healing including Vdr, β-catenin and adherens junction signaling...
March 22, 2017: Endocrinology
https://www.readbyqxmd.com/read/28367192/correlation-between-maternal-and-childhood-vitb12-folic-acid-and-ferritin-levels
#15
Fatima Zeeshan, Attia Bari, Saima Farhan, Uzma Jabeen, Ahsan Waheed Rathore
OBJECTIVE: To determine the correlation between serum folic acid, vitamin B12 and ferritin of mother and child and to study various neonatal risk factors as a cause of anemia in children. METHODS: One hundred eighty children two months to two years of age admitted in the department of Pediatric Medicine of The Children's Hospital and The Institute of Child Health Lahore from January 2013 to January 2015 with common medical conditions having anemia were included...
January 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28350538/possible-effects-of-neonatal-vitamin-b12-status-on-tsh-screening-program-a-cross-sectional-study-from-turkey
#16
Zerrin Onal, Seda Balkaya, Atilla Ersen, Neval Mutlu, Hasan Onal, Erdal Adal
BACKGROUND: In this study we evaluated whether vitamin B12 deficiency affects neonatal screening (NS) for congenital hypothyroidism (CH). METHODS: A cross-sectional study conducted from 2010 to 2011. A total of 10,740 infants were born in our hospital in this period. Thyroid-stimulating hormone (TSH) was tested for NS and neonates with abnormal screening results (TSH>20 mIU/L) were re-examined. Two hundred and twenty-nine re-called subjects (re-call rate 2.3%) were compared to 77 randomly selected newborns with normal TSH screening among these term newborns in terms of serum TSH, free T4, vitamin B12 and homocysteine status...
March 28, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28341341/the-high-prevalence-of-vitamin-d-insufficiency-in-cord-blood-in-calgary-alberta-apron-d-study
#17
Fariba Aghajafari, Catherine J Field, Bonnie J Kaplan, Jack A Maggiore, Maeve O'Beirne, David A Hanley, Misha Eliasziw, Deborah Dewey, Sue Ross, Doreen Rabi
OBJECTIVE: Vitamin D is important in promoting healthy pregnancy and fetal development. We undertook this study to measure 25-hydroxyvitamin D in maternal and cord blood and to identify maternal factors related to vitamin D status in Calgary. METHODS: Blood samples collected at the time of delivery from the Alberta Pregnancy Outcomes and Nutrition study cohort (ApronStudy.ca) participants were processed for plasma and assayed using liquid chromatography mass spectrometry methodology for 25(OH)D3...
March 21, 2017: Journal of Obstetrics and Gynaecology Canada: JOGC, Journal D'obstétrique et Gynécologie du Canada: JOGC
https://www.readbyqxmd.com/read/28335649/plasma-growth-arrest-specific-6-levels-in-term-and-preterm-newborns
#18
E Eksi Alp, N Altinkaya, Z Cagman, F Uras
OBJECTIVE: Growth Arrest-Specific 6 (GAS6) is a vitamin K-dependent protein. Despite a similar structure to Protein S, it has no anticoagulant activity. An association between GAS6 and some diseases for adults has been reported. In the absence of prospective clinical studies of GAS6 in neonates, so far, the objective of this study is to obtain, for the first time, plasma GAS6 levels before and after vitamin K1 prophylaxis in full-term and pre-term newborns. METHODS: 80 newborn (40 term and 40 preterm) were recruited for this study...
March 23, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28333154/maternal-neonatal-vitamin-d-deficiency-a-new-risk-factor-for-necrotizing-enterocolitis-in-preterm-infants
#19
M Cetinkaya, T Erener-Ercan, T Kalayci-Oral, A Babayiğit, B Cebeci, S Y Semerci, G Buyukkale
OBJECTIVE: The objective of the study was to investigate the possible association between maternal/neonatal 25-hydroxy vitamin D (25-OHD) levels and development of necrotizing enterocolitis (NEC). STUDY DESIGN: One hundred and forty-five preterm infants ⩽36 weeks of gestation were enrolled. 25-OHD levels were determined in maternal/neonatal blood samples that were obtained at the time of admission to the neonatal intensive care unit. RESULTS: Of the 145 enrolled patients, 26 (18%) developed NEC...
March 23, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28329059/anticoagulation-for-pregnant-women-with-mechanical-heart-valves-a-systematic-review-and-meta-analysis
#20
Rohan D'Souza, Jackie Ostro, Prakesh S Shah, Candice K Silversides, Ann Malinowski, Kellie E Murphy, Mathew Sermer, Nadine Shehata
Aims: To review maternal and foetal outcomes in women with mechanical heart valves (MHVs) treated with vitamin-K antagonists (VKAs), first-trimester heparin followed by VKAs (sequential treatment), low molecular weight heparin (LMWH) and unfractionated heparin (UFH) during pregnancy, in order to inform practice. Methods and results: Medline, Embase and Central were searched from inception until February 2016. Two reviewers independently screened 1786 titles, reviewed 110 full-texts and extracted data and assessed risk-of-bias from 46 articles...
March 9, 2017: European Heart Journal
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