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https://www.readbyqxmd.com/read/29351779/the-effect-of-twin-to-twin-delivery-time-intervals-on-neonatal-outcome-for-second-twins
#1
L Lindroos, A Elfvin, L Ladfors, U-B Wennerholm
BACKGROUND: The objective was to examine the effect of twin-to-twin delivery intervals on neonatal outcome for second twins. METHODS: This was a retrospective, hospital-based study, performed at a university teaching hospital in Western Sweden. Twin deliveries between 2008 and 2014 at ≥32 + 0 weeks of gestation, where the first twin was delivered vaginally, were included. Primary outcome was a composite outcome of metabolic acidosis, Apgar < 4 at 5 min or peri/neonatal mortality in the second twin...
January 19, 2018: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/29351431/feasibility-of-phase-contrast-cine-magnetic-resonance-imaging-for-measuring-blood-flow-in-the-sheep-fetus
#2
An Qi Duan, Jack R T Darby, Jia Yin Soo, Mitchell C Lock, Meng Yuan Zhu, Lucy V Flynn, Sunthara Rajan Perumal, Christopher K Macgowan, Joseph B Selvanayagam, Janna L Morrison, Mike Seed
Phase-contrast cine MRI (PC-MRI) is the gold-standard non-invasive technique for measuring vessel blood flow and has previously been applied in the human fetal circulation. We aimed to assess the feasibility of using PC-MRI to define the distribution of the fetal circulation in sheep. Fetuses were catheterized at 119-120 days gestation (term, 150 days) and underwent MRI at 123 days gestation under isoflurane anesthesia, ventilated at a FiO2 of 1.0. PC-MRI was performed using a fetal arterial blood pressure catheter signal for cardiac triggering...
December 13, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29350881/interferon-induced-protein-35-ifi35-inhibits-endothelial-cell-proliferation-migration-and-re-endothelialization-of-injured-arteries-by-inhibiting-the-nuclear-factor-kappa-b-nf-kb-pathway
#3
Dongdong Jian, Weina Wang, Xinmiao Zhou, Zhen Jia, Jing Wang, Mei Yang, Wenting Zhao, Zhen Jiang, Xiaotong Hu, Jianhua Zhu
AIM: Endothelial recovery, or re-endothelialization, plays an important role in intimal hyperplasia and atherosclerosis after endothelial injury. Studying the mechanisms of re-endothelialization and strategies to promote efficient endothelial recovery are still needed. Interferon-induced protein 35 (IFI35) is an IFN-γ-induced protein that plays important roles in the anti-virus-related immune-inflammatory response. In this study, we tested whether overexpression IFI35 affects the proliferation and migration of endothelial cells (ECs) and re-endothelialization...
January 19, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29350679/proangiogenic-functions-of-an-rgd-slay-containing-osteopontin-icosamer-peptide-in-huvecs-and-in-the-postischemic-brain
#4
Hahnbie Lee, Yin-Chuan Jin, Seung-Woo Kim, Il-Doo Kim, Hye-Kyung Lee, Ja-Kyeong Lee
Osteopontin (OPN) is a phosphorylated glycoprotein secreted into body fluids by various cell types. OPN contains arginine-glycine-aspartate (RGD) and serine-leucine-alanine-tyrosine (SLAY) motifs that bind to several integrins and mediate a wide range of cellular processes. In the present study, the proangiogenic effects of a 20-amino-acid OPN peptide (OPNpt20) containing RGD and SLAY motifs were examined in human umbilical vein endothelial cells (HUVECs) and in a rat focal cerebral ischemia model. OPNpt20 exerted robust proangiogenic effects in HUVECs by promoting proliferation, migration and tube formation...
January 19, 2018: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/29349429/repair-of-a-mycotic-abdominal-aortic-aneurysm-in-a-neonate-using-an-everted-jugular-vein-patch
#5
Samantha L Ahle, Jonathan A Cardella, Muriel A Cleary, David H Stitelman, Timur P Sarac, Michael G Caty
A 43-day-old boy presented with bacteremia after umbilical artery catheterization. Duplex ultrasound examination revealed a 1.1- × 1.6-cm mycotic infrarenal aortic aneurysm and an incidental asymptomatic occluded right common iliac artery. Resection and repair were completed by creating an everted, double-layered internal jugular vein patch. Screening ultrasound examination 10 months postoperatively demonstrated successful repair.
December 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29348396/a-case-of-umbilical-artery-thrombosis-in-the-third-trimester-of-pregnancy
#6
Fouad Lutfallah, Nina Oufkir, Georges A Markou, Delphine Frimigacci, Christophe Poncelet
BACKGROUND Umbilical artery thrombosis is an extremely rare complication during pregnancy. Umbilical artery thrombosis has a poor prognosis and is associated with increased rates of perinatal morbidity, including intrauterine growth restriction (IUGR), and fetal mortality. CASE REPORT We report a rare case of umbilical artery thrombosis, diagnosed by ultrasound, at 33 weeks gestation in a 30-year-old woman who had previously had an uneventful pregnancy. CONCLUSIONS Umbilical artery thrombosis is a rare complication of pregnancy that is associated with high fetal mortality...
January 19, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29344304/atherosclerosis-is-exacerbated-by-chitinase-3-like-1-in-amyloid-precursor-protein-transgenic-mice
#7
Yu Yeon Jung, Ki Cheon Kim, Mi Hee Park, Youngsik Seo, Heonyong Park, Min Hee Park, Jun Chang, Dae Youn Hwang, Sang Bae Han, Sanghyeon Kim, Dong Ju Son, Jin Tae Hong
Although the important role of amyloid precursor protein (APP) in vascular diseases associated with Alzheimer's disease (AD) has been demonstrated, the underlying molecular mechanisms and physiological consequences are unclear. We aimed to evaluate vascular inflammation and atherosclerosis in Swedish mutant of human APP transgenic (APPsw-Tg) and ApoE-/-/APPsw-Tg mice. We also aimed to explore the mechanisms underlying any changes observed in these mice compared with non-Tg controls. Methods: The transgenic and non-Tg mouse strains were subjected to partial ligation of the left carotid artery to induce atherosclerotic changes, which were measured using histological approaches, immunohistochemistry, quantitative polymerase chain reaction, and gene expression microarrays...
2018: Theranostics
https://www.readbyqxmd.com/read/29343897/contralateral-lumbo-umbilical-flap-a-versatile-technique-for-volar-finger-coverage
#8
Akram Hussain Bijli, Sheikh Adil Bashir, Altaf Rasool, Mir Yasir, Adil Hafeez Wani, Tanveer Ahmad, Mushtaq Ahmad
Background: While contemplating any difficult soft tissue reconstruction, patient comfort and compliance is of paramount importance. Reconstruction of the volar aspect of fingers and hand by the ipsilateral pedicled flaps (groin flap, abdominal flaps) is demanding as the flap inset is difficult for the surgeon and very uncomfortable for the patient. This often leads to flap complications. For the comfort of the patient, better compliance and ease of complete inset, we planned to manage soft tissue defects of the volar aspect of fingers and hand by a new contralateral pedicled lumbo-umbilical flap...
May 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/29343616/rapamycin-activates-tgf-receptor-independently-of-its-ligand-implications-for-endothelial-dysfunction
#9
Ayumi A Miyakawa, Thais Girao-Silva, Jose E Krieger, Elazer R Edelman
Rapamycin, the macrolide immunosuppressant and active pharmaceutic in drug-eluting stents (DES), has a well-recognized anti-proliferative action that involves inhibition of the mTOR pathway after binding to the cytosolic protein FKBP12. TGF receptor-type I (TGFRI) spontaneous activation is inhibited by the association with FKBP12. We hypothesized that rapamycin, in addition to inhibition of mTOR signaling, activates TGFRI independent of TGFb. Human umbilical vein endothelial cells (HUVEC) were treated with rapamycin (10nmoL/L) and/or TGF-b RI kinase inhibitor (TGFRIi, 100nmoL/L) for 24 hours...
January 17, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29340931/vascutrainer-a-mobile-and-disposable-bioreactor-system-for-the-conditioning-of-tissue-engineered-vascular-grafts
#10
Frederic Wolf, Diana M Rojas González, Ulrich Steinseifer, Markus Obdenbusch, Werner Herfs, Christian Brecher, Stefan Jockenhoevel, Petra Mela, Thomas Schmitz-Rode
In vitro tissue engineering of vascular grafts requires dynamic conditioning in a bioreactor system for in vitro tissue maturation and remodeling to receive a mechanically adequate and hemocompatible implant. The goal of the current work was to develop a bioreactor system for the conditioning of vascular grafts which is (i) able to create a wide range of flow, pressure and frequency conditions, including physiological ones; (ii) compact and easy to assemble; (iii) transportable; (iv) disposable. The system is driven by a small centrifugal pump controlled via a custom-made control unit, which can also be operated on batteries to allow for autonomous transportation...
January 16, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29338384/human-umbilical-cord-mesenchymal-stem-cells-preserve-adult-newborn-neurons-and-reduce-neurological-injury-after-cerebral-ischemia-by-reducing-the-number-of-hypertrophic-microglia-macrophages
#11
Willie Lin, Yogi Chang-Yo Hsuan, Mao-Tsun Lin, Ting-Wei Kuo, Cheng-Hsien Lin, Yu-Chin Su, Ko-Chi Niu, Ching-Ping Chang, Hung-Jung Lin
Microglia are the first source of a neuroinflammatory cascade, which seems to be involved in every phase of stroke-related neuronal damage. Two weeks after transient middle cerebral artery occlusion (MCAO), vehicle-treated rats displayed higher numbers of total ionized calcium-binding adaptor molecule 1 (Iba-1)-positive cells, greater cell body areas of Iba-1-positive cells, and higher numbers of hypertrophic Iba-1-positive cells (with a cell body area over 80 μm2) in the ipsilateral ischemic brain regions including the frontal cortex, striatum, and parietal cortex...
November 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29330635/hypotension-due-to-spinal-anesthesia-influences-fetal-circulation-in-primary-caesarean-sections
#12
K Lato, I Bekes, Peter Widschwendter, T W P Friedl, W Janni, F Reister, G Froeba, U Friebe-Hoffmann
PURPOSE: Hypotension due to spinal anesthesia is a well-known side effect in pregnant women receiving caesarean section. Little is known about its impact on fetal blood circulation. METHODS: 40 women with uncomplicated singleton term pregnancies prepared for caesarean section were prospectively evaluated by Doppler sonography before and immediately after spinal anesthesia. RESULTS: In 90% of the women, blood pressure significantly decreased after spinal anesthesia and 42...
January 12, 2018: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29326857/role-of-color-doppler-flowmetry-in-prediction-of-intrauterine-growth-retardation-in-high-risk-pregnancy
#13
Sachin Khanduri, Saakshi Chhabra, Santosh Yadav, Tushar Sabharwal, Mriganki Chaudhary, Tarim Usmani, Aakshit Goyal, Hritik Sharma
OBJECTIVE: To evaluate the usefulness of Color Doppler flowmetry in the prediction of intrauterine growth restriction (IUGR) in high-risk pregnancies. MATERIALS AND METHOD: A total of 62 high-risk pregnant women underwent Color Doppler flowmetric umbilical artery pulsatility index (PI), resistive index (RI) and systolic/diastolic (S/D) ratio, middle cerebral artery PI, RI and S/D ratio, Ductus venosus S-wave/isovolumetric A-wave index (SIA) and vertebral artery RI at 23-27 weeks, 28-32 weeks and 32-36 weeks of their pregnancy...
November 8, 2017: Curēus
https://www.readbyqxmd.com/read/29324612/third-trimester-maternal-vaccination-against-pertussis-and-pertussis-antibody-concentrations
#14
Cynthia Abraham, Michael Pichichero, Jesse Eisenberg, Sonali Singh
OBJECTIVE: To compare pertussis antibody concentrations in maternal venous serum (at the time of delivery) and umbilical cord arterial serum among women vaccinated with the tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis (Tdap) vaccine from either 27-30 6/7 weeks of gestation or from 31-35 6/7 weeks of gestation. METHODS: We conducted a prospective cohort study of pregnant women divided into two groups based on when Tdap was administered: 27-30 6/7 weeks of gestation and 31-35 6/7 weeks of gestation...
January 9, 2018: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29320761/expandable-arterial-endothelial-precursors-from-human-cd34-cells-differ-in-their-proclivity-to-undergo-an-endothelial-to-mesenchymal-transition
#15
Auston Z Miller, Alexander Satchie, Alex P Tannenbaum, Aman Nihal, James A Thomson, David T Vereide
Arterial diseases continue to pose a major health concern but in vitro studies are limited because explanted cells can exhibit poor proliferative capacity and a loss of specificity. Here, we find that two transcription factors, MYCN and SOX17, induce and indefinitely expand in culture precursors of human arterial endothelial cells (expandable arterial endothelial precursors [eAEPs]). The eAEPs are derived from CD34+ cells found in umbilical cord blood or adult bone marrow. Independent eAEP lines differ in their proclivity to undergo an endothelial-to-mesenchymal transition (EndoMT), a hallmark event in a broad array of vascular diseases and disorders...
January 9, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29320537/correlation-of-a-new-index-reflecting-the-fluctuation-of-parasympathetic-tone-and-fetal-acidosis-in-an-experimental-study-in-a-sheep-model
#16
C Garabedian, Y Clermont-Hama, D Sharma, E Aubry, L Butruille, P Deruelle, L Storme, J De Jonckheere, V Houfflin-Debarge
The autonomic nervous system plays a leading role in the control of fetal homeostasis. Fetal heart rate variability (HRV) analysis is a reflection of its activity. We developed a new index (the Fetal Stress Index, FSI) reflecting parasympathetic tone. The objective of this study was to evaluate this index as a predictor of fetal acid-base status. This was an experimental study on chronically instrumented fetal lambs (n = 11, surgery at 128 +/- 2 days gestational age, term = 145 days). The model was based on 75% occlusion of the umbilical cord for a maximum of 120 minutes or until an arterial pH ≤ 7...
2018: PloS One
https://www.readbyqxmd.com/read/29317764/cerebral-oxygenation-during-umbilical-arterial-blood-sampling-in-very-low-birth-weight-neonates
#17
Jonathan P Mintzer, Catherine Messina
OBJECTIVE: Umbilical arterial blood sampling (UABS) has been associated with cerebral oxygen saturation (CrSO2) decrements in very low birth weight (VLBW) neonates. We sought to determine patient- and UABS procedure-related factors contributing to this effect. STUDY DESIGN: In this prospective cohort study, cerebral near-infrared spectroscopy was performed during UABS procedures in VLBW neonates. Analyses were conducted to determine subject- and procedure-related factors correlating with CrSO2 decrements...
January 9, 2018: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29316011/roles-of-venovenous-anastomosis-and-umbilical-cord-insertion-abnormalities-in-birthweight-discordance-in-monochorionic-diamniotic-twin-pregnancies-without-twin-twin-transfusion-syndrome
#18
Hiroko Konno, Takeshi Murakoshi, Akiko Yamashita, Mitsuru Matsushita
AIM: We evaluated risk factors for birthweight discordance in monochorionic diamniotic (MCDA) twin pregnancies without twin-twin transfusion syndrome (TTTS). METHODS: We investigated all MCDA twin placentas injected with colored dye at our institution between 2007 and 2015. We excluded pairs of twins with TTTS, fetal demise, or severe fetal malformation. All pairs of twins were assigned to the discordant group (birthweight discordance ≥ 25%) or the concordant group (birthweight discordance < 25%)...
January 5, 2018: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29315137/reducing-ischemic-injury-from-indwelling-peripheral-arterial-catheters-in-a-pediatric-cardiac-icu-a-quality-improvement-initiative
#19
Adam C Adler, Stephanie Helman, Cynthia Field, Judith J Stellar, Lauren A Brown, Nicole Omensetter, Andrew T Costarino, Mahsun Yuerek, Karen S Bender
OBJECTIVES: To reduce the number of ischemic arterial catheter injuries in children with congenital or acquired heart disease. DESIGN: This is a quality improvement study with pre- and postintervention groups. SETTING: University-affiliated pediatric cardiac center in a quaternary care freestanding children's hospital. PATIENTS: All patients with an indwelling peripheral arterial catheter placed in the Children's Hospital of Philadelphia Cardiac Center associated with an admission to the Cardiac Intensive Cardiac Unit from January 2015 to July 2017 are included...
January 8, 2018: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29314767/laparoscopic-repair-of-bowel-herniation-into-the-space-between-the-obturator-nerve-and-the-umbilical-artery-after-pelvic-lymphadenectomy-for-cervical-cancer
#20
Hironori Minami, Toshiya Nagasaki, Takashi Akiyoshi, Tsuyoshi Konishi, Yoshiya Fujimoto, Satoshi Nagayama, Yosuke Fukunaga, Hironori Fukuoka, Masashi Ueno
Bowel herniation through the space between the exposed structures after pelvic lymphadenectomy is a very rare cause of postoperative bowel obstruction. Here, a case of laparoscopic release of bowel migration into the space after pelvic lymphadenectomy is described. This is the seventh such reported case in the world. A 38-year-old woman who had a history of undergoing laparoscopic radical hysterectomy and bilateral pelvic lymphadenectomy for cervical cancer was diagnosed with strangulated bowel obstruction...
January 4, 2018: Asian Journal of Endoscopic Surgery
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