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https://www.readbyqxmd.com/read/28931198/older-siblings-are-at-increased-risk-for-foreign-bodies
#1
Laura H Swibel Rosenthal, Matthew R Bartindale, Zachary C Fridirici, Natalie A Papillon
A prospective, case-control study was performed to describe the role that siblings play in foreign bodies of the head and neck and to recognize situations in which children are most at risk for foreign bodies. Any child or adolescent (0 to 17 years old) with a foreign body removed from the head or neck was included. The data collected included location of the foreign body, location of acquisition (e.g., home), and the number of and ages of siblings. Controls were matched by age, sex, and location of removal (clinic, operating room, or emergency department)...
September 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28931173/hopping-and-landing-performance-in-male-youth-soccer-players-effects-of-age-and-maturation
#2
Paul James Read, Jon L Oliver, Gregory Myer, Mark De Ste Croix, Rhodri Lloyd
Quantifying hopping and landing performances can assist coaches in identifying young male soccer players who may be at increased risk of injury. The influence of chronological age and maturation on these measures in this population is unknown. Single leg hop for distance (SLHD) and 75% horizontal hop and stick landing force (75%Hop) were examined in a cross-sectional sample (N=400) of elite male youth soccer players. Between-group differences for both chronological age (U11-U18) and stage of maturation (pre-, circa- or post-peak height velocity (PHV)) were analyzed...
September 20, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28931160/reproductive-behavior-of-echinothrips-americanus-thysanoptera-thripidae
#3
Stephanie Krueger, Marcus Jilge, Laurence Mound, Gerald B Moritz
Most Thysanoptera possess a haplo-diploid reproductive mode and reproduce via arrhenotoky. Females can mature eggs successively throughout almost their entire life, but in most terebrantian thrips spermiogenesis is complete by adult male eclosion, and testes contain only mature spermatids. In parasitoid wasps this phenomenon of preadult spermiogenesis is described as prospermatogeny. It is unclear if prospermatogeny and this predetermined sperm quantity have implications for mating strategy and fitness. In this study, we give a detailed description of mating behavior of the thripine species Echinothrips americanus, which largely corresponds with the only available data of another species of this family, Frankliniella occidentalis (Thysanoptera: Thripidae)...
January 1, 2017: Journal of Insect Science
https://www.readbyqxmd.com/read/28931040/newborn-skin-reflection-proof-of-concept-for-a-new-approach-for-predicting-gestational-age-at-birth-a-cross-sectional-study
#4
Zilma Silveira Nogueira Reis, Gabriela Luiza Nogueira Vitral, Ingrid Michelle Fonseca de Souza, Maria Albertina Santiago Rego, Rodney Nascimento Guimaraes
BACKGROUND: Current methods to assess the gestational age during prenatal care or at birth are a global challenge. Disadvantages, such as low accessibility, high costs, and imprecision of clinical tests and ultrasonography measurements, may compromise health decisions at birth, based on the gestational age. Newborns' organs and tissues can indirectly indicate their physical maturity, and we hypothesized that evolutionary changes in their skin, detected using an optoelectronic device meter, may aid in estimating the gestational age...
2017: PloS One
https://www.readbyqxmd.com/read/28930677/structural-and-functional-analysis-of-grp94-in-the-closed-state-reveals-an-essential-role-for-the-pre-n-domain-and-a-potential-client-binding-site
#5
John D Huck, Nanette L Que, Feng Hong, Zihai Li, Daniel T Gewirth
Hsp90 chaperones undergo ATP-driven conformational changes during the maturation of client proteins, populating a closed state upon ATP binding in which the N-terminal domains of the homodimer form a second inter-protomer dimer interface. A structure of GRP94, the endoplasmic reticulum hsp90, in a closed conformation has not been described, and the determinants that regulate closure are not well understood. Here, we determined the 2.6-Å structure of AMPPNP-bound GRP94 in the closed dimer conformation. The structure includes the pre-N domain, a region preceding the N-terminal domain that is highly conserved in GRP94, but not in other hsp90s...
September 19, 2017: Cell Reports
https://www.readbyqxmd.com/read/28930668/aspects-of-sexual-precocity-and-morphometry-of-uterus-placenta-and-embryos-fetuses-in-piau-breed-and-commercial-line-gilts
#6
José Carlos Montes, Jurandy Mauro Penitente-Filho, Simone Eliza Facioni Guimarães, Paulo Sávio Lopes, Breno Soares Camilo, Hugo Hideki Shiomi, Daniel Araújo Lima, Rogério Oliveira Pinho, Jhonata Vieira Tavares do Nascimento Pereira, Denise Silva Okano, Karine Assis Costa, José Domingos Guimarães
In view of the importance of the genetic material of local breeds in the swine industry and the lack of information about reproductive performance of Piau females, two experiments were conducted to evaluate puberty and sexual maturity as well as the morphometry of embryos/fetuses, placenta and uterus during the first 90 days of gestation in Piau breed and Commercial line gilts. In experiment I, 37 Piau and 25 commercial line gilts were used. From the 120 days of age, detection of estrus was performed using mature boars from the first to third estrus of each gilt...
September 12, 2017: Theriogenology
https://www.readbyqxmd.com/read/28930652/developing-neutrophils-must-eat%C3%A2-themselves
#7
Zhichao Fan, Klaus Ley
In this issue of Immunity, Riffelmacher et al. (2017) show that autophagy is necessary for the release of free fatty acids from intracellular stores within neutrophil precursor cells. This limits glycolysis, increases oxidative phosphorylation, and is essential for neutrophil maturation.
September 19, 2017: Immunity
https://www.readbyqxmd.com/read/28930483/breastfeeding-characteristics-of-late-preterm-infants-in-a-kangaroo-mother-care-unit
#8
Melissa Pike, Alta Kritzinger, Esedra Krüger
OBJECTIVE: To describe the breastfeeding characteristics of late-preterm infants (LPIs) in a kangaroo mother care (KMC) unit. MATERIALS AND METHODS: In a 20-bed KMC unit, the breastfeeding of 73 purposively-selected LPIs' (mean gestational age: 34.8 weeks) was observed once-off, using the Preterm Infant Breastfeeding Behavior Scale. Participants' mean age was 9.5 days, mean number of days in the unit was 3.1 days, and mean number of days breastfeeding was 7.5 on observation...
September 20, 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28930370/comparison-of-whole-genome-expression-profile-between-preterm-and-full-term-newborns
#9
Przemko Kwinta, Renata Bokiniec, Mirosław Bik-Multanowski, Clara-Cecilie Gunther, Agnieszka Grabowska, Teofila Książek, Anna Madetko-Talowska, Katarzyna Szewczyk, Monika Szwarc-Duma, Maria K Borszewska-Kornacka, Lars O Baumbusch, Cecilie Revhaug, Ola D Saugstad, Jacek J Pietrzyk
OBJECTIVES: Evaluate the time dependent expression of genes in preterm neonates and verify the influence of ontogenic maturation and the environmental factors on the gene expression after birth. MATERIAL AND METHODS: The study was carried out on 20 full-term newborns and 62 preterm newborns (mean birth weight = 1002 [g] (SD: 247), mean gestational age = 27.2 weeks (SD: 1.9)). Blood samples were drawn from all the study participants at birth and at the 36th week postmenstrual age from the preterm group to assess whole genome expression in umbilical cord blood and in peripheral blood leukocytes, respectively...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28930267/%C3%AE-selinene-rich-essential-oils-from-the-parts-of-callicarpa-macrophylla-and-their-antioxidant-and-pharmacological-activities
#10
Mahesh Chandra, Om Prakash, Ravendra Kumar, Rakesh Kumar Bachheti, Brij Bhushan, Mahesh Kumar, Anil Kumar Pant
Background:Callicarpa macrophylla (Varbenaceae) is a medicinal shrub and is traditionally used in India, China, and South Asia. Methods: The plant material was collected from lower Himalayan region of Uttarakhand in India. The essential oils from three different aerial parts were analyzed by GC-MS. Antioxidant activity, phenolic assay, and various pharmacological activities were determined by using existing methods which are generally practiced widely. Results: Over 51, 53, and 40 compounds were identified in C...
July 10, 2017: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/28929998/calcaneal-tendon-collagen-fiber-morphometry-and-aging
#11
Daniel Hadraba, Jiri Janacek, Eva Filova, Frantisek Lopot, Rik Paesen, Ondrej Fanta, Anneliese Jarman, Alois Necas, Marcel Ameloot, Karel Jelen
Fibrillar collagen in tendons and its natural development in rabbits are discussed in this paper. Achilles tendons from newborn (~7 days) to elderly (~38 months) rabbits were monitored in intact (n tendons=24) and microtome sectioned (n tendons=11) states with label-free second harmonic generation microscopy. After sectioning, the collagen fiber pattern was irregular for the younger animals and remained oriented parallel to the load axis of the tendon for the older animals. In contrast, the collagen fiber pattern in the intact samples followed the load axis for all the age groups...
September 20, 2017: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/28929981/the-presence-of-acylated-ghrelin-during-in-vitro-maturation-of-bovine-oocytes-induces-cumulus-cell-dna-damage-and-apoptosis-and-impairs-early-embryo-development
#12
Matias A Sirini, Juan Mateo Anchordoquy, Juan Patricio Anchordoquy, Ana M Pascua, Noelia Nikoloff, Ana Carranza, Alejandro E Relling, Cecilia C Furnus
The aim of this study was to investigate the effects of acylated ghrelin supplementation during in vitro maturation (IVM) of bovine oocytes. IVM medium was supplemented with 20, 40 or 60 pM acylated ghrelin concentrations. Cumulus expansion area and oocyte nuclear maturation were studied as maturation parameters. Cumulus-oocyte complexes (COC) were assessed with the comet, apoptosis and viability assays. The in vitro effects of acylated ghrelin on embryo developmental capacity and embryo quality were also evaluated...
September 20, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/28929977/exposure-to-follicular-fluid-during-oocyte-maturation-and-oviductal-fluid-during-post-maturation-does-not-improve-in-vitro-embryo-production-in-the-horse
#13
Cécile Douet, Olivia Parodi, Nicola Antonio Martino, Giovanni Michele Lacalandra, Michele Nicassio, Fabrice Reigner, Stefan Deleuze, Maria Elena Dell'Aquila, Ghylène Goudet
Most wild equids and many domestic horse breeds are at risk of extinction, so there is an urgent need for genome resource banking. Embryos cryopreservation allows the preservation of genetics from male and female and is the fastest method to restore a breed. In the equine, embryo production in vitro would allow the production of several embryos per cycle. Intracytoplasmic sperm injection (ICSI) is used to generate horse embryos, but it requires expensive equipment and expertise in micromanipulation, and blastocyst development rates remain low...
September 20, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/28929946/egalitarian-from-homophile-to-helicophile-in-post-ww2-america
#14
Diederik F Janssen
The presidency of gender in the Anglo-American taxonomy of sexualities has historically been haunted by the irruption of "other" parameters of medicalization, censure and caesura, not in the least absolute and relative measures of age. Where today's clinical psychologists feel the need to age-specify adult homosexuality in such Hirschfeldian terms as androphilia, however, the felt need is indeed still essentially clinical. That cosmopolitan expressions such as homosexual, LGB or queer rarely require such specifications relies on a protracted and today arguably complete disarticulation of sex/gender and age/maturity as parameters of sexual orientation, accreditation and mobilization...
September 20, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28929860/adolescent-perspectives-on-patient-provider-sexual-health-communication-a-qualitative-study
#15
Andrea J Hoopes, Samantha K Benson, Heather B Howard, Diane M Morrison, Linda K Ko, Taraneh Shafii
BACKGROUND: Adolescents in the United States are disproportionately affected by sexually transmitted infections and unintended pregnancy. Adolescent-centered health services may reduce barriers to health care; yet, limited research has focused on adolescents' own perspectives on patient-provider communication during a sexual health visit. METHODS: Twenty-four adolescents (14-19 years old) seeking care in a public health clinic in Washington State participated in one-on-one qualitative interviews...
September 1, 2017: Journal of Primary Care & Community Health
https://www.readbyqxmd.com/read/28929527/music-exposure-and-maturation-of-late-preterm-sleep-wake-cycles-a-randomized-crossover-trial
#16
Adia Stokes, Alexander G Agthe, Dina El Metwally
AIM: To determine the effect of music on sleep-wake cycle (SWC) patterns in late preterm neonates. METHODS: In a masked crossover study, infants between 32-36 6/7 weeks gestation were randomized to music exposure either during the first six or last six hours of a 12-hour observation period. SWC characteristics were determined by continuous amplitude integrated electroencephalography (aEEG) read by two coders masked to exposure sequence. Analysis was done in paired comparisons...
September 20, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28929461/the-isolation-culture-and-propagation-of-murine-intestinal-enteroids-for-the-study-of-dietary-lipid-metabolism
#17
Diana Li, Hongli Dong, Alison B Kohan
Since the initial report in 2009 by Sato and Clevers, primary enteroids have been of major interest in the fields of stem cell biology and gastrointestinal (GI) tract biology. More recently, we and others have made major inroads into the physiological relevance of these enteroid models and have shown that enteroids derived from the stomach, intestine, or colon recapitulate major functions of these tissues, namely, gastric acid secretion, lipid absorption and lipoprotein secretion, and ion transport. Here, we detail the isolation of stem cells from the small intestine and the culture and propagation of those stem cells into mature three-dimensional enteroids...
September 20, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28929253/positive-rheotaxis-extended-drop-a-one-step-procedure-to-select-and-recover-sperm-with-mature-chromatin-for-intracytoplasmic-sperm-injection
#18
Hamilton De Martin, Marcello S Cocuzza, Bruno C Tiseo, Guilherme J A Wood, Eduardo P Miranda, Pedro A A Monteleone, José Maria Soares, Paulo C Serafini, Miguel Srougi, Edmund C Baracat
PURPOSE: The purpose of this study was to develop a novel one-step ICSI approach to select sperm with better chromatin maturity than the conventional method. METHODS: This was a pilot diagnostic study, which prospectively recruited men during a 6-month period in a University-affiliated infertility centre. Forty consecutive semen samples were provided for analysis. The positive rheotaxis extended drop (PRED) was set up creating a pressure and viscosity gradient. Each semen sample was divided into four aliquots: one aliquot for density gradient centrifugation (DGC), two aliquots for PRED (fresh semen (PRED-FS) and processed semen (PRED-DGC)), and one aliquot as the control (FS)...
September 19, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28929184/metabolic-changes-in-primary-secondary-and-lipid-metabolism-in-tobacco-leaf-in-response-to-topping
#19
Jieyu Zhao, Lili Li, Yanni Zhao, Chunxia Zhao, Xia Chen, Pingping Liu, Huina Zhou, Junjie Zhang, Chunxiu Hu, Aiguo Chen, Guanshan Liu, Xiaojun Peng, Xin Lu, Guowang Xu
As an important cultivation practice used for flue-cured tobacco, topping affects diverse biological processes in the later stages of development and growth. Some studies have focused on using tobacco genes to reflect the physiological changes caused by topping. However, the complex metabolic shifts in the leaf resulting from topping have not yet been investigated in detail. In this study, a comprehensive metabolic profile of primary, secondary, and lipid metabolism in flue-cured tobacco leaf was generated with use of a multiple platform consisting of gas chromatography-mass spectrometry, capillary electrophoresis-mass spectrometry, and liquid chromatography-mass spectrometry/ultraviolet spectroscopy...
September 19, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28929130/cytoskeletal-stability-in-the-auditory-organ-in-vivo-rhoa-is-dispensable-for-wound-healing-but-essential-for-hair-cell-development
#20
Tommi Anttonen, Ilya Belevich, Maarja Laos, Anni Herranen, Eija Jokitalo, Cord Brakebusch, Ulla Pirvola
Wound healing in the inner ear sensory epithelia is performed by the apical domains of supporting cells (SCs). Junctional F-actin belts of SCs are thin during development but become exceptionally thick during maturation. The functional significance of the thick belts is not fully understood. We have studied the role of F-actin belts during wound healing in the developing and adult cochlea of mice in vivo. We show that the thick belts serve as intracellular scaffolds that preserve the positions of surviving cells in the cochlear sensory epithelium...
September 2017: ENeuro
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