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https://www.readbyqxmd.com/read/28225423/committee-opinion-no-688-management-of-suboptimally-dated-pregnancies
#1
(no author information available yet)
The American College of Obstetricians and Gynecologists considers first-trimester ultrasonography to be the most accurate method to establish or confirm gestational age. Pregnancies without an ultrasonographic examination confirming or revising the estimated due date before 22 0/7 weeks of gestation should be considered suboptimally dated. This document provides guidance for managing pregnancies in which the best clinical estimate of gestational age is suboptimal. There is no role for elective delivery in a woman with a suboptimally dated pregnancy...
March 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28225418/committee-opinion-no-688-summary-management-of-suboptimally-dated-pregnancies
#2
(no author information available yet)
The American College of Obstetricians and Gynecologists considers first-trimester ultrasonography to be the most accurate method to establish or confirm gestational age. Pregnancies without an ultrasonographic examination confirming or revising the estimated due date before 22 0/7 weeks of gestation should be considered suboptimally dated. This document provides guidance for managing pregnancies in which the best clinical estimate of gestational age is suboptimal. There is no role for elective delivery in a woman with a suboptimally dated pregnancy...
March 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28215994/safe-recombinant-outer-membrane-vesicles-that-display-m2e-elicit-heterologous-influenza-protection
#3
Hannah C Watkins, C Garrett Rappazzo, Jaclyn S Higgins, Xiangjie Sun, Nicole Brock, Annie Chau, Aditya Misra, Joseph P B Cannizzo, Michael R King, Taronna R Maines, Cynthia A Leifer, Gary R Whittaker, Matthew P DeLisa, David Putnam
Recombinant, Escherichia coli-derived outer membrane vesicles (rOMVs), which display heterologous protein subunits, have potential as a vaccine adjuvant platform. One drawback to rOMVs is their lipopolysaccharide (LPS) content, limiting their translatability to the clinic due to potential adverse effects. Here, we explore a unique rOMV construct with structurally remodeled lipids containing only the lipid IVa portion of LPS, which does not stimulate human TLR4. The rOMVs are derived from a genetically engineered B strain of E...
February 16, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28213006/a-prospective-multi-institutional-phase-ii-study-of-induction-chemoradiotherapy-followed-by-surgery-in-patients-with-non-small-cell-lung-cancer-involving-the-chest-wall-cjlsg0801
#4
Koji Kawaguchi, Kohei Yokoi, Hiroshi Niwa, Yasuhisa Ohde, Shoichi Mori, Sakae Okumura, Satoshi Shiono, Hiroyuki Ito, Motoki Yano, Kikuo Shigemitsu, Yoshinori Hiramatsu, Jiro Okami, Hideo Saka
OBJECTIVES: The standard therapy for patients with T3N0-1M0 non-small cell lung cancer (NSCLC) involving the chest wall is considered surgical resection and adjuvant therapy. However, the compliance of adjuvant therapy is relatively low, and the prognosis for those patients has been unsatisfactory. Therefore, we conducted a phase II study of induction chemoradiotherapy followed by surgery with the aim of improving the survival. PATIENTS AND METHODS: This treatment strategy consisted of induction chemotherapy (two cycles of cisplatin at 80mg/m(2) on Day 1 and vinorelbine at 20mg/m(2) on Days 1 and 8) concurrent with radiotherapy (40Gy in 20 fractions) followed by surgery...
February 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28210572/endobronchial-solitary-fibrous-tumor
#5
Cristiano Claudino Oliveira, Marcelo Padovani Toledo de Moraes, Thomas Colby, Gilmar Felisberto Oliveira, Erica Nishida Hasimoto, Daniele Cristina Cataneo, Antônio José Maria Cataneo, Julio De Faveri
Solitary fibrous tumor (SFT) is a mesenchymal neoplasm that appears primarily in the pleura and rarely in intrapulmonary or endobronchial topography. The authors report the case of a 47-year-old woman who presented obstructive respiratory symptoms for 4 years. The chest computed tomography and bronchoscopy showed an obstructive polypoid lesion located between the trachea and the left main bronchus associated with distal atelectasis of the left lung. A resection of the lesion was performed and, macroscopically, the mass was oval, encapsulated, and firm, measuring 2...
October 2016: Autopsy & case reports
https://www.readbyqxmd.com/read/28208028/early-life-wildfire-smoke-exposure-is-associated-with-immune-dysregulation-and-lung-function-decrements-in-adolescence
#6
Carolyn Black, Joan E Gerriets, Justin H Fontaine, Richart W Harper, Nicholas J Kenyon, Fern Tablin, Edward S Schelegle, Lisa A Miller
RATIONALE: The long-term health effects of wildfire smoke exposure in pediatric populations are not known. OBJECTIVE: To determine if early life exposure to wildfire smoke can affect parameters of immunity and airways physiology that are detectable with maturity. METHODS: We studied a mixed gender cohort of rhesus macaque monkeys that were exposed as infants to ambient wood smoke from a series of Northern California wildfires in the summer of 2008...
February 16, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28193909/rv2299c-a-novel-dendritic-cell-activating-antigen-of-mycobacterium-tuberculosis-fused-esat-6-subunit-vaccine-confers-improved-and-durable-protection-against-the-hypervirulent-strain-hn878-in-mice
#7
Han-Gyu Choi, Seunga Choi, Yong Woo Back, Seungwha Paik, Hye-Soo Park, Woo Sik Kim, Hongmin Kim, Seung Bin Cha, Chul Hee Choi, Sung Jae Shin, Hwa-Jung Kim
Understanding functional interactions between DCs and antigens is necessary for achieving an optimal and desired immune response during vaccine development. Here, we identified and characterized protein Rv2299c (heat-shock protein 90 family), which effectively induced DC maturation. The Rv2299c-maturated DCs showed increased expression of surface molecules and production of proinflammatory cytokines. Rv2299c induced these effects by binding to TLR4 and stimulating the downstream MyD88-, MAPK- and NF-κB-dependent signaling pathways...
February 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28188034/follistatin-like-1-expression-is-decreased-in-the-alveolar-epithelium-of-hypoplastic-rat-lungs-with-nitrofen-induced-congenital-diaphragmatic-hernia
#8
Toshiaki Takahashi, Julia Zimmer, Florian Friedmacher, Prem Puri
BACKGROUND/PURPOSE: Pulmonary hypoplasia (PH), characterized by incomplete alveolar development, remains a major therapeutic challenge associated with congenital diaphragmatic hernia (CDH). Follistatin-like 1 (Fstl1) is a crucial regulator of alveolar formation and maturation, which is strongly expressed in distal airway epithelium. Fstl1-deficient mice exhibit reduced airspaces, impaired alveolar epithelial cell differentiation, and insufficient production of surfactant proteins similar to PH in human CDH...
January 28, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28187172/generation-of-dendritic-cell-based-vaccine-using-high-hydrostatic-pressure-for-non-small-cell-lung-cancer-immunotherapy
#9
Nada Hradilova, Lenka Sadilkova, Ondrej Palata, Dagmar Mysikova, Hana Mrazkova, Robert Lischke, Radek Spisek, Irena Adkins
High hydrostatic pressure (HHP) induces immunogenic death of tumor cells which confer protective anti-tumor immunity in vivo. Moreover, DC pulsed with HHP-treated tumor cells induced therapeutic effect in mouse cancer model. In this study, we tested the immunogenicity, stability and T cell stimulatory activity of human monocyte-derived dendritic cell (DC)-based HHP lung cancer vaccine generated in GMP compliant serum free medium using HHP 250 MPa. DC pulsed with HHP-killed lung cancer cells and poly(I:C) enhanced DC maturation, chemotactic migration and production of pro-inflammatory cytokines after 24h...
2017: PloS One
https://www.readbyqxmd.com/read/28178756/the-effect-of-freezing-amniotic-fluid-on-lamellar-body-count-fetal-lung-maturity-testing
#10
Sarah Carroll, Craig V Towers, Lynlee Wolfe, Lisa Duncan, Beth Weitz, Stephanie Porter
A short freeze-thaw process had little effect on the reliability of a mature lamellar body count test result. When evaluating fetal lung maturity, many laboratories analyze amniotic fluid to test the lamellar body count (LBC). In clinical practice, amniotic fluid is sometimes inadvertently placed on dry ice during transport and the sample can become frozen. To the best of our knowledge, no study has analyzed whether this short freeze-thaw process affects LBC test results. Several studies have evaluated the effect of freezing amniotic fluid on LBC test results; however, the samples have been frozen in a freezer over a long duration that would not occur inadvertently in a clinical setting [1-3]...
February 8, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28176791/il-36%C3%AE-is-a-crucial-proximal-component-of-protective-type-1-mediated-lung-mucosal-immunity-in-gram-positive-and-negative-bacterial-pneumonia
#11
M A Kovach, B Singer, G Martinez-Colon, M W Newstead, X Zeng, P Mancuso, T A Moore, S L Kunkel, M Peters-Golden, B B Moore, T J Standiford
Interleukin-36γ (IL-36γ) is a member of novel IL-1-like proinflammatory cytokine family that are highly expressed in epithelial tissues and several myeloid-derived cell types. Little is known about the role of the IL-36 family in mucosal immunity, including lung anti-bacterial responses. We used murine models of IL-36γ deficiency to assess the contribution of IL-36γ in the lung during experimental pneumonia. Induction of IL-36γ was observed in the lung in response to Streptococcus pneumoniae (Sp) infection, and mature IL-36γ protein was secreted primarily in microparticles...
February 8, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28171866/selective-biological-responses-of-phagocytes-and-lungs-to-purified-histones
#12
Fatemeh Fattahi, Jamison J Grailer, Hope Lu, Rachel S Dick, Michella Parlett, Firas S Zetoune, Gabriel Nuñez, Peter A Ward
Histones invoke strong proinflammatory responses in many different organs and cells. We assessed biological responses to purified or recombinant histones, using human and murine phagocytes and mouse lungs. H1 had the strongest ability in vitro to induce cell swelling independent of requirements for toll-like receptors (TLRs) 2 or 4. These responses were also associated with lactate dehydrogenase release. H3 and H2B were the strongest inducers of [Ca2+]i elevations in phagocytes. Cytokine and chemokine release from mouse and human phagocytes was predominately a function of H2A and H2B...
February 8, 2017: Journal of Innate Immunity
https://www.readbyqxmd.com/read/28170341/the-effects-of-antenatal-glucocorticoid-exposure-on-fetal-and-neonatal-skin-maturation
#13
Deanne August, Yogavijayan Kandasamy
AIMS: The use of antenatal glucocorticoids in women with preterm labor has dramatically improved outcomes for premature infants. The most commonly used antenatal glucocorticoids are betamethasone and dexamethasone. Glucocorticoids accelerate fetal lung growth by several mechanisms, including the maturation of type II pneumocytes enabling surfactant production. Furthermore, the lipids in the lung share similarity with those in the skin. Therefore, antenatal administration of glucocorticoids may have effects on the structure and function of the developing epidermal barrier in fetuses and neonates...
February 7, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28158922/pulmonary-glass-particles-may-persist-in-the-lung-suppressing-function-of-immune-cells
#14
Eun-Jung Park, Gwang-Hee Lee, Jae-Chan Kim, Sang Jin Lee, Kyuhong Lee, Byoung-Seok Lee, Jaerak Chang, Dong-Wan Kim
The health effects of silica may depend on the inherent properties of crystalline silica or on external factors affecting the biological activity or distribution of its polymorphs. Inhaled crystalline silica is classified as a Group I carcinogen, however, information on the health effects of amorphous silica is still insufficient. Considering that alveolar macrophages play a key role in both innate and adaptive immune responses for removal of foreign bodies that enter via the respiratory system, we treated sheet-like glass particles (SGPs), a type of noncrystalline amorphous silica, to MH-S cells, an alveolar macrophage cell line...
February 3, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28152539/hyperoxia-and-the-immature-brain
#15
Bettina Reich, Daniela Hoeber, Ivo Bendix, Ursula Felderhoff-Mueser
Despite major advances in obstetrics and neonatal intensive care, preterm infants frequently suffer from neurological impairments in later life. Preterm and also full-term neonates are generally susceptible to injury caused by reactive oxygen species due to the immaturity of endogenous radical scavenging systems. It is well known that high oxygen levels experienced during the critical phase of maturation can profoundly influence developmental processes. Supraphysiological oxygen concentrations used for resuscitation or in the care of critically ill infants are known to have deleterious effects on the developing lung and retina, contributing to the pathophysiology of neonatal diseases like bronchopulmonary dysplasia and retinopathy of prematurity...
February 3, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28152282/human-fetal-lung-morphometry-at-autopsy-with-new-modeling-to-quantitate-structural-maturity
#16
Jill Lipsett
OBJECTIVES: To demonstrate a simplified morphometric procedure, including a new model for acinar structural maturity, applicable to autopsy fetal lung and present reference values for these parameters. STUDY DESIGN: Cases with autopsy consent for research were studied. To simplify analysis only critical morphometric parameters were measured to allow calculation of gas-exchange surface area. SUBJECT SELECTION: A total of 58 fetuses, 16-40 weeks were included...
February 2, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28152192/effects-of-tracheal-occlusion-with-retinoic-acid-administration-on-normal-lung-development
#17
Delabaere Amélie, Marceau Geoffroy, Coste Karen, Blanchon Loïc, Déchelotte Pierre Jean, Blanc Pierre, Sapin Vincent, Gallot Denis
INTRODUCTION: Tracheal occlusion (TO) is an investigational therapy for severe congenital diaphragmatic hernia (CDH) that decreases pulmonary hypoplasia, but sustained TO also induces deficient surfactant synthesis. Intramuscular maternal administration of retinoic acid (RA) in a surgical rabbit model of CDH showed a beneficial effect on lung maturation. We evaluated the potential of RA delivery into the trachea and studied the combined effects of TO and RA on normal lung development...
February 2, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28145528/lipidomics-reveals-dramatic-lipid-compositional-changes-in-the-maturing-postnatal-lung
#18
Sydney E Dautel, Jennifer E Kyle, Geremy Clair, Ryan L Sontag, Karl K Weitz, Anil K Shukla, Son N Nguyen, Young-Mo Kim, Erika M Zink, Teresa Luders, Charles W Frevert, Sina A Gharib, Julia Laskin, James P Carson, Thomas O Metz, Richard A Corley, Charles Ansong
Lung immaturity is a major cause of morbidity and mortality in premature infants. Understanding the molecular mechanisms driving normal lung development could provide insights on how to ameliorate disrupted development. While transcriptomic and proteomic analyses of normal lung development have been previously reported, characterization of changes in the lipidome is lacking. Lipids play significant roles in the lung, such as dipalmitoylphosphatidylcholine in pulmonary surfactant; however, many of the roles of specific lipid species in normal lung development, as well as in disease states, are not well defined...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28144783/development-of-the-lung
#19
REVIEW
Johannes C Schittny
To fulfill the task of gas exchange, the lung possesses a huge inner surface and a tree-like system of conducting airways ventilating the gas exchange area. During lung development, the conducting airways are formed first, followed by the formation and enlargement of the gas exchange area. The latter (alveolarization) continues until young adulthood. During organogenesis, the left and right lungs have their own anlage, an outpouching of the foregut. Each lung bud starts a repetitive process of outgrowth and branching (branching morphogenesis) that forms all of the future airways mainly during the pseudoglandular stage...
January 31, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28141932/an-expanded-portfolio-of-survival-metrics-for-assessing-anticancer-agents
#20
Jennifer Karweit, Srividya Kotapati, Samuel Wagner, James W Shaw, Steffan W Wolfe, Amy P Abernethy
OBJECTIVES: With the introduction of more effective anticancer agents that prolong survival, there is a need for new methods to define the clinical value of treatments. The objective of this preliminary qualitative and quantitative analysis was to assess the utility of an expanded portfolio of survival metrics to differentiate the value of anticancer agents. STUDY DESIGN: A literature review was conducted of phase 3 trial data, reported in regulatory submissions within the last 10 years of agents for 6 metastatic cancers (breast cancer, colorectal cancer [CRC], melanoma, non-small cell lung cancer [NSCLC], prostate cancer [PC], and renal cell cancer [RCC])...
January 2017: American Journal of Managed Care
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