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https://www.readbyqxmd.com/read/29455122/benzotriazoles-and-benzothiazoles-in-paired-maternal-urine-and-amniotic-fluid-samples-from-tianjin-china
#1
Xiaoying Li, Lei Wang, Alexandros G Asimakopoulos, Hongwen Sun, Zhen Zhao, Junjie Zhang, Lu Zhang, Qi Wang
Benzotriazoles (BTRs) and benzothiazoles (BTHs) are two groups of heterocyclic compounds that are widely detected in the environment. In this study, the levels of BTRs and BTHs in 79 paired maternal urine and amniotic fluid samples from Tianjin were investigated. BTRs were detected in most maternal urine samples, with a median concentration of ∑BTRs of 0.88 ng/mL. BTH was detected in all maternal urine samples, with a median concentration of 1.35 ng/mL. Tolyltriazole (TTR, i.e., the sum of 4-methyl-1H-benzotriazole and 5-methyl-1H-benzotriazole) and BTH were detected in amniotic fluid with detection rates (DRs) > 50% and median concentrations of 0...
February 12, 2018: Chemosphere
https://www.readbyqxmd.com/read/29446682/fetal-urinary-tract-anomalies-review-of-pathophysiology-imaging-and-management
#2
Achille Mileto, Malak Itani, Douglas S Katz, Joseph R Siebert, Manjiri K Dighe, Theodore J Dubinsky, Mariam Moshiri
OBJECTIVE: Common fetal anomalies of the kidneys and urinary tract encompass a complex spectrum of abnormalities that can be detected prenatally by ultrasound. Common fetal anomalies of the kidneys and urinary tract can affect amniotic fluid volume production with the development of oligohydramnios or anhydramnios, resulting in fetal pulmonary hypoplasia and, potentially, abnormal development of other fetal structures. CONCLUSION: We provide an overview of common fetal anomalies of the kidneys and urinary tract with an emphasis on sonographic patterns as well as pathologic and postnatal correlation, along with brief recommendations for postnatal management...
February 15, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29444982/the-unique-features-of-proteins-depicting-the-chicken-amniotic-fluid
#3
Mylène Da Silva, Clara Dombre, Aurélien Brionne, Philippe Monget, Magali Chessé, Marion De Pauw, Maryse Mills, Lucie Combes-Soia, Valérie Labas, Nicolas Guyot, Yves Nys, Sophie Rehault-Godbert
In many amniotes, the amniotic fluid is depicted as a dynamic milieu that participates in the protection of the embryo (cushioning, hydration, and immunity). However, in birds, the protein profile of the amniotic fluid remains unexplored, even though its proteomic signature is predicted to differ compared to human's. In fact, unlike humans, chicken amniotic fluid does not collect excretory products and its protein composition strikingly changes at mid-development due to the massive inflow of egg white proteins, which are thereafter swallowed by the embryo to support its growth...
February 14, 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29443075/human-pluripotent-stem-cell-culture-on-polyvinyl-alcohol-co-itaconic-acid-hydrogels-with-varying-stiffness-under-xeno-free-conditions
#4
Tzu-Cheng Sung, Hsing-Fen Li, Akon Higuchi, Qing-Dong Ling, Jia-Sin Yang, Yeh-Chia Tseng, Chih-Hsien Pan Pan, Abdullah A Alarfaj, Murugan A Munusamy, Suresh Kumar, Shih-Tien Hsu, Kadarkarai Murugan
The effect of physical cues, such as the stiffness of biomaterials on the proliferation and differentiation of stem cells, has been investigated by several researchers. However, most of these investigators have used polyacrylamide hydrogels for stem cell culture in their studies. Therefore, their results are controversial because those results might originate from the specific characteristics of the polyacrylamide and not from the physical cue (stiffness) of the biomaterials. Here, we describe a protocol for preparing hydrogels, which are not based on polyacrylamide, where various stem, cells including human embryonic stem (ES) cells and human induced pluripotent stem (iPS) cells, can be cultured...
February 3, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29439621/biofluid-metabolomics-in-preterm-birth-research
#5
Ana M Gil, Daniela Duarte
This article presents an account of the research carried out so far in the use of metabolomics to find biomarkers of preterm birth (PTB) in fetal, maternal, and newborn biofluids. Metabolomic studies have employed mainly nuclear magnetic resonance spectroscopy or mass spectrometry-based methodologies to analyze, on one hand, prenatal biofluids (amniotic fluid, maternal urine/maternal blood, cervicovaginal fluid) to identify predictive biomarkers of PTB, and on the other hand, biofluids collected at or after birth (amniotic fluid, umbilical cord blood, newborn urine, and newborn blood, maternal blood, or breast milk) to assess and follow up the health status of PTB babies...
January 1, 2018: Reproductive Sciences
https://www.readbyqxmd.com/read/29434245/galectin-3-plays-an-important-role-in-preterm-birth-caused-by-dental-infection-of-porphyromonas-gingivalis
#6
Mutsumi Miyauchi, Min Ao, Hisako Furusho, Chanbora Chea, Atsuhiro Nagasaki, Shinnichi Sakamoto, Toshinori Ando, Toshihiro Inubushi, Katsuyuki Kozai, Takashi Takata
Dental infection is risk for preterm birth (PTB) through unclear mechanisms. We established a dental infection-induced PTB mouse model, in which Porphyromonas gingivalis (P.g.) induced PTB by 2 days. We analysed pathogenic factors contributing to PTB and their effects on trophoblasts in vitro. TNF-α, IL-8, and COX-2 were upregulated in P.g.-infected placenta. Galectin-3 (Gal-3), an immune regulator, was significantly upregulated in placenta, amniotic fluid, and serum. In vitro, P.g.-lipopolysaccharide (P.g...
February 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29428266/duraplasty-using-amniotic-membrane-versus-temporal-muscle-fascia-a-clinical-comparative-study
#7
Agus Turchan, Taufiq Fatchur Rochman, Arie Ibrahim, Dyah Fauziah, Joni Wahyuhadi, M Arifin Parenrengi, Asra Al Fauzi, Erliano Sufarnap, Abdul Hafid Bajamal, Ferdiansyah, Heri Suroto, Purwati, Fedik Abdul Rantam, Adanti Wido Paramadini, Christianto Benjamin Lumenta
In the field of neurosurgery, often the dura mater cannot be sutured, and consequently, it requires a duraplasty procedure using a dural fascial graft. Since 1890, various materials have been researched as dura mater substitutes. Amniotic membrane, for example, is suitable as a dural graft material and has been used in neurosurgery since 2012. However, there has been little research on human patient's dural healing after the use of amniotic membrane in their duraplasty procedure. To address this gap, a clinical experimental study was undertaken to evaluate the human dural healing of 16 patients who had undergone duraplasty in decompressive craniectomy surgery at Dr...
February 7, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29426264/comparison-between-maternal-and-neonatal-outcome-of-pprom-in-the-cases-of-amniotic-fluid-index-afi-of-more-and-less-than-5-cm
#8
Ashraf Sadat Mousavi, Neda Hashemi, Maryam Kashanian, Narges Sheikhansari, Arash Bordbar, Shayesteh Parashi
The study was performed on pregnant women with a gestational age of 26-32 weeks of pregnancy, who had been admitted to the hospital with a confirmed diagnosis of premature rupture of membranes. In all eligible women, ultrasounds were performed for the evaluation of amniotic fluid index. Then, the women were divided into two groups according to amniotic fluid index of ≥5 cm and <5 cm. These women were followed and monitored up to delivery. The women of the two groups did not have significant difference between them according to age, gestational age at the time of ruptured membrane, body mass index, gravidity, parity, gestational age at delivery and route of delivery...
February 9, 2018: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29425317/human-cervical-mucus-plugs-exhibit-insufficiencies-in-antimicrobial-activity-towards-group-b-streptococcus
#9
Jay Vornhagen, Phoenicia Quach, Verónica Santana-Ufret, Varchita Alishetti, Alyssa Brokaw, Blair Armistead, Hai Qing Tang, James W MacDonald, Theodor K Bammler, Kristina M Adams Waldorf, Niels Uldbjerg, Lakshmi Rajagopal
Preterm birth is a leading cause of neonatal mortality and lacks an effective therapy. Ascending microbial infections from the lower genital tract lead to infection of the placenta, amniotic fluid and fetus causing preterm birth or stillbirth. Directly in the path of an ascending infection is the cervical mucus plug (CMP), a dense mucoid structure in the cervical canal with potential antimicrobial properties. In this study, we aimed to define the components of CMP responsible for antimicrobial activity against a common lower genital tract organism associated with preterm birth and stillbirths, namely Group B Streptococcus (GBS)...
February 7, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29419722/detection-of-drug-exposed-newborns
#10
Simuli L Wabuyele, Jennifer M Colby, Gwendolyn A McMillin
Maternal substance abuse during pregnancy is a growing problem with major public health and legal concerns. In utero substance exposure may adversely affect neonatal development, pregnancy outcome and the long term behavioral, cognitive and developmental abilities of the child. Also, serious legal implications are associated with substance abuse during pregnancy, including charges of child abuse and neglect which may result in removal of the neonate from parental care and loss of custodial rights. Timely detection of in utero drug exposure is necessary for early identification and effective management of exposed newborns...
February 5, 2018: Therapeutic Drug Monitoring
https://www.readbyqxmd.com/read/29414511/human-plasma-retinol-binding-protein-rbp4-is-also-a-fatty-acid-binding-protein
#11
Massimiliano Perduca, Stefania Nicolis, Barbara Mannucci, Monica Galliano, Hugo L Monaco
RBP4 (plasma retinol-binding protein) is the 21 kDa transporter of all-trans retinol that circulates in plasma as a moderately tight 1:1 molar complex of the vitamin with the protein. RBP4 is primarily synthesized in the liver but is also produced by adipose tissue and circulates bound to a larger protein, transthyretin, TTR, that serves to increase its molecular mass and thus avoid its elimination by glomerular filtration. This paper reports the high resolution three-dimensional structures of human RBP4 naturally lacking bound retinol purified from plasma, urine and amniotic fluid...
January 31, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29410259/estimated-versus-measured-blood-loss-during-dilation-and-evacuation-an-observational-study
#12
Elissa T Serapio, Geffan A Pearlson, Eleanor A Drey, Jennifer L Kerns
OBJECTIVE: To compare estimated versus measured blood loss at the time of dilation and evacuation (D&E). STUDY DESIGN: We measured blood loss for all D&E procedures between 16-24weeks at one abortion clinic over nine months. We weighed all blood-containing items and measured blood captured in the D&E tray. Providers recorded estimated blood loss before weighing or measuring blood. We compared median measured blood loss (MBL) and estimated blood loss (EBL) for each gestational week...
February 1, 2018: Contraception
https://www.readbyqxmd.com/read/29408236/the-strength-of-mechanical-forces-determines-the-differentiation-of-alveolar-epithelial-cells
#13
Jiao Li, Zheng Wang, Qiqi Chu, Kewu Jiang, Juan Li, Nan Tang
The differentiation of alveolar epithelial type I (AT1) and type II (AT2) cells is essential for the lung gas exchange function. Disruption of this process results in neonatal death or in severe lung diseases that last into adulthood. We developed live imaging techniques to characterize the mechanisms that control alveolar epithelial cell differentiation. We discovered that mechanical forces generated from the inhalation of amniotic fluid by fetal breathing movements are essential for AT1 cell differentiation...
February 5, 2018: Developmental Cell
https://www.readbyqxmd.com/read/29405963/relationship-between-second-trimester-amniotic-fluid-levels-of-prokineticin-1-and-matrix-metalloproteinase-2-with-adverse-pregnancy-outcome
#14
Selen G Erzincan, Fusun G Varol, Cihan Inan, N Cenk Sayin
To investigate the levels of Prokineticin-1 (PROK1) and matrix metalloproteinase-2 (MMP-2) in second-trimester amniotic fluid (AF). AF samples were investigated in 81 patients. AF-PROK1 and AF-MMP-2 were not significantly associated with adverse pregnancy outcomes (preeclampsia, intrauterine growth retardation, spontaneous preterm birth, gestational diabetes, gestational hypertension). AF-PROK1 levels in patients with abnormal first-trimester screening were significantly higher than those who underwent amniocentesis due to abnormal second-trimester screening tests (p = ...
February 2018: Placenta
https://www.readbyqxmd.com/read/29404743/no-evidence-of-obstetrical-adverse-events-after-hyperimmune-globulin-application-for-primary-cytomegalovirus-infection-in-pregnancy-experience-from-a-single-centre
#15
Loredana Delle Chiaie, Patrick Neuberger, Matthias Vochem, Angela Lihs, Ulrich Karck, Martin Enders
PURPOSE: To determine the frequency of obstetrical adverse events and clinical outcome in infants following antenatal hyperimmune globulin (HIG) treatment for primary cytomegalovirus (CMV) infection in pregnancy. METHODS: Data from 50 women including three twin pregnancies were retrospectively evaluated. Primary infection was defined by seroconversion or the presence of CMV-specific IgM and low IgG avidity. All women received two or more infusions of HIG (200 U/kg)...
February 5, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29402914/neuroprotection-of-the-hypoxic-ischemic-mouse-brain-by-human-cd117-cd90-cd105-amniotic-fluid-stem-cells
#16
Michelangelo Corcelli, Kate Hawkins, Filipa Vlahova, Avina Hunjan, Kate Dowding, Paolo De Coppi, Anna L David, Donald Peebles, Pierre Gressens, Henrik Hagberg, Mariya Hristova, Pascale V Guillot
Human amniotic fluid contains two morphologically-distinct sub-populations of stem cells with regenerative potential, spindle-shaped (SS-hAFSCs) and round-shaped human amniotic fluid stem cells (RS-hAFSCs). However, it is unclear whether morphological differences correlate with functionality, and this lack of knowledge limits their translational applications. Here, we show that SS-hAFSCs and RS-hAFSCs differ in their neuro-protective ability, demonstrating that a single contralateral injection of SS-hAFSCs into hypoxic-ischemic P7 mice conferred a 47% reduction in hippocampal tissue loss and 43-45% reduction in TUNEL-positive cells in the hippocampus and striatum 48 hours after the insult, decreased microglial activation and TGFβ1 levels, and prevented demyelination...
February 5, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29397159/placental-pathology-in-neonatal-stroke-a-retrospective-case-control-study
#17
Miya E Bernson-Leung, Theonia K Boyd, Emily E Meserve, Amy R Danehy, Kush Kapur, Cameron C Trenor, Laura L Lehman, Michael J Rivkin
OBJECTIVE: To assess the association of placental abnormalities with neonatal stroke. STUDY DESIGN: This retrospective case-control study at 3 academic medical centers examined placental specimens for 46 children with neonatal arterial or venous ischemic stroke and 99 control children without stroke, using a standard protocol. Between-group comparisons used χ 2 and Fisher exact t test. Correlations used Spearman correlation coefficient. RESULTS: Case placentas were more likely than controls to meet criteria for ≥1 of 5 major categories of pathologic abnormality (89% vs 62%; OR, 5...
January 31, 2018: Journal of Pediatrics
https://www.readbyqxmd.com/read/29393671/importance-of-maternal-diet-in-the-training-of-the-infant-s-immune-system-during-gestation-and-lactation
#18
P V Jeurink, K Knipping, F Wiens, K Barańska, B Stahl, J Garssen, B Krolak-Olejnik
Latest forecasts predict that half of the European population will be allergic within the coming 15 years, with food allergies contributing substantially to the total burden; preventive measures are urgently needed. Unfortunately, all attempted alimentary strategies for primary prevention of allergic diseases through allergen avoidance so far have failed. This also holds true for the prevention of food allergies in breastfed infants by the common practice of excluding certain foods with allergenic potential from the maternal diet...
February 2, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29393334/two-novel-variants-of-the-phex-gene-in-patients-with-x%C3%A2-linked-dominant-hypophosphatemic-rickets-and-prenatal-diagnosis-for-fetuses-in-these-families
#19
Hong Liao, Hong-Mei Zhu, Hong-Qian Liu, Ling-Ping Li, Shan-Ling Liu, He Wang
X‑linked hypophosphatemic rickets (XLHR; OMIM 307800) is an X‑linked dominant disorder caused by mutations in the phosphate‑regulating neutral endopeptidase homolog X‑linked (PHEX) gene, which is located at Xp22.11. In the present study, two novel variants of the PHEX gene were identified in two unrelated families with XLHR by directly sequencing all 22 exon regions and intron/exon boundaries of the PHEX gene. One missense variant, NM_000444.5: c.1721T>A, was identified in exon 17 of the PHEX gene in Family 1, which led to an amino acid change in the p...
January 18, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29393249/upregulation-of-vascular-endothelial-growth-factor-in-amniotic-fluid-stem-cells-enhances-their-potential-to-attenuate-lung-injury-in-a-preterm-rabbit-model-of-bronchopulmonary-dysplasia
#20
Julio Jiménez, Flore Lesage, Jute Richter, Taro Nagatomo, Thomas Salaets, Silvia Zia, Marina Gabriela Mori Da Cunha, Jeroen Vanoirbeek, Jan A Deprest, Jaan Toelen
BACKGROUND: Bronchopulmonary dysplasia (BPD) is a chronic lung disease that affects extremely preterm infants and remains - despite improvements in neonatal intensive care - a major cause of neonatal mortality and morbidity. Cell-therapeutic strategies employing mesenchymal stem cells (MSC) have been shown to modulate lung development in BPD models. OBJECTIVE: Herein, we evaluate the potential of human amniotic fluid (hAF)-SC and hAF-SC with upregulated expression of vascular endothelial growth factor (VEGF) as cell-therapeutic agents for BPD...
February 1, 2018: Neonatology
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