keyword
MENU ▼
Read by QxMD icon Read
search

crest

keyword
https://www.readbyqxmd.com/read/27926868/cmyc-regulates-the-size-of-the-premigratory-neural-crest-stem-cell-pool
#1
Laura Kerosuo, Marianne E Bronner
The neural crest is a transient embryonic population that originates within the central nervous system (CNS) and then migrates into the periphery and differentiates into multiple cell types. The mechanisms that govern neural crest stem-like characteristics and self-renewal ability are poorly understood. Here, we show that the proto-oncogene cMyc is a critical factor in the chick dorsal neural tube, where it regulates the size of the premigratory neural crest stem cell pool. Loss of cMyc dramatically decreases the number of emigrating neural crest cells due to reduced self-renewal capacity, increased cell death, and shorter duration of the emigration process...
December 6, 2016: Cell Reports
https://www.readbyqxmd.com/read/27923324/uncovering-the-in-vivo-source-of-adult-neural-crest-stem-cells
#2
Jorge B Aquino
Some late embryonic and adult postmigratory neural crest-derived cells (NCDCs) from diverse tissues were shown to grow as multipotent neurospheres. Neural crest stem cells (NCSCs) contained in these spheres, were found to give rise not only to neuroectodermal derivatives but also to some of the progeny of the other embryonic germ layers. In this review, evidences regarding the in vivo properties of NCDCs contributing to NCSCs are discussed. Even though in many cases the final prove for the phenotype identity of in vivo cells generating NCSCs is lacking, some evidences suggest that such postmigratory NCDCs would differ from neural crest cells (NCCs)...
December 6, 2016: Stem Cells and Development
https://www.readbyqxmd.com/read/27914431/complex-modes-expansion-with-vector-projection-using-power-flow-to-simulate-lamb-waves-scattering-from-horizontal-cracks-and-disbonds
#3
Banibrata Poddar, Victor Giurgiutiu
This paper presents an inexpensive but accurate analytical method to calculate the scattering of straight-crested Lamb waves from cracks parallel to the plate surface. The same method is applicable for the disbond problem. In this method, the scatter field is expanded in terms of complex Lamb wave modes with unknown amplitudes. These unknown amplitudes are obtained from the boundary conditions using vector projection utilizing the power expression. The process works by projecting the stress conditions onto the displacement eigen-spaces of complex Lamb wave modes and vice versa...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27913427/intermittent-hypoxia-during-recovery-from-neonatal-hyperoxic-lung-injury-causes-long-term-impairment-of-alveolar-development-a-new-rat-model-of-bpd
#4
Anastasiya Mankouski, Crystal Kantores, Mathew J Wong, Julijana Ivanovska, Amish Jain, Eric J Benner, Stanley N Mason, A Keith Tanswell, Richard L Auten, Robert P Jankov
Bronchopulmonary dysplasia (BPD) is a chronic lung injury characterized by impaired alveologenesis that may persist into adulthood. Rat models of BPD using varying degrees of hyperoxia to produce injury either cause early mortality or spontaneously recover following removal of the inciting stimulus, thus limiting clinical relevance. We sought to refine an established rat model induced by exposure to 60% O2 from birth by following hyperoxia with intermittent hypoxia (IH). Rats exposed from birth to air or 60% O2 until day 14 were recovered in air with or without IH (FiO2 = 0...
December 2, 2016: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/27910733/a-comparative-morphologic-and-morphometric-study-about-geniculate-ganglion-development-in-man-and-in-rat
#5
Ana Sánchez-Del-Rey, José Maria Sánchez-Fernández, Arantza Ibargutxi, Agustin Martinez-Ibargüen, Francisco Santaolalla
CONCLUSIONS: Human-rat geniculate ganglion (GG) have multiple origins: (1) An initial proximity (20 μm) to the endocranial foramen of the IAM, suggests neural crest induction; and (2) The influence of epibranchial placodes: the tensor tympani muscle (TTM) and the otic apical coil. OBJECTIVES: This study was undertaken to determine the comparative development of human-rat GG. MATERIALS AND METHODS: A light microscopic study of the GG in human material obtained from spontaneous abortions at 9, 13, 14, 17, 18, and 30 weeks, and one neonate was done...
December 2, 2016: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/27908253/assessment-of-bone-quality-in-osteoporosis-treatment-with-bone-anabolic-agents-really-something-new
#6
Fabio Massimo Ulivieri, Renata Caudarella, Marzia Camisasca, Daniela Maria Cabrini, Ilaria Merli, Carmelo Messina, Luca Petruccio Piodi
Osteoporosis is a chronic pathologic condition, particularly of the elderly, in which a reduction of bone mineral density (BMD) weakens bone, leading to the so-called fragility fractures, most often of spine and femur. The gold standard exam for the quantitative measurement of BMD is the dual X-ray photon absorptiometry (DXA), a radiological method. However, a relevant number of fragility fractures occurs in the range of normal BMD values, meaning that also qualitative aspects of bone play a role, namely bone architecture and bone geometry...
December 1, 2016: Current Rheumatology Reviews
https://www.readbyqxmd.com/read/27906583/isolation-of-bovine-skin-derived-precursor-cells-and-their-developmental-potential-after-nuclear-transfer
#7
Jiajia Xiao, Qiaoqiao Li, Pengxiang Qu, Zihan Zhang, Shaohui Pan, Yongsheng Wang, Yong Zhang
Nuclei from less differentiated stem cells yield high cloning efficiency. However, pluripotent stem cells are rather difficult to obtain from bovines. Skin-derived precursor (SKPs) cells exhibit a certain degree of pluripotency, which has been shown to enhance the efficiency of nuclear transfer (NT) in pigs. In this study, bovine SKPs were isolated and characterized. Results showed that bovine SKPs expressed nestin, fibronectin, vimentin, pluripotency-related genes, and characteristic neural crest markers, such as NGFR, PAX3, SOX9, SNAI2, and OCT4...
November 2016: Cellular Reprogramming
https://www.readbyqxmd.com/read/27906436/iliac-crest-bone-graft-a-23-years-hystory-of-infection-at-donor-site-in-vertebral-arthrodesis-and-a-review-of-current-bone-substitutes
#8
L Babbi, G Barbanti-Brodano, A Gasbarrini, S Boriani
OBJECTIVE: This is an exemplary case report underlining a relevant morbidity which could be associated to the use of autologous iliac crest bone graft (ICBG) for spine fusion. CASE REPORT: Starting from 1990, a 25-years-old woman underwent two subsequent surgical treatments for non-Hodgkin lymphoma vertebral localizations. In the second surgery, arthrodesis was obtained with autograft through right posterior iliac crest osteotomy. During the chemotherapy treatment following the surgery, the patient suffered from infection at posterior iliac crest scar, the site of previous graft, caused by methicillin-resistant Staphylococcus aureus...
November 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27905407/endothelin-3-stimulates-cell-adhesion-and-cooperates-with-%C3%AE-1-integrins-during-enteric-nervous-system-ontogenesis
#9
Elodie Gazquez, Yuli Watanabe, Florence Broders-Bondon, Perrine Paul-Gilloteaux, Julie Heysch, Viviane Baral, Nadège Bondurand, Sylvie Dufour
Endothelin-3 (EDN3) and β1-integrins are required for the colonization of the embryonic gut by enteric neural crest cells (ENCCs) to form the enteric nervous system (ENS). β1-integrin-null ENCCs exhibit migratory defects in a region of the gut enriched in EDN3 and in specific extracellular matrix (ECM) proteins. We investigated the putative role of EDN3 on ENCC adhesion properties and its functional interaction with β1-integrins during ENS development. We show that EDN3 stimulates ENCC adhesion to various ECM components in vitro...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27903929/a-comparison-of-outcomes-of-particulated-juvenile-articular-cartilage-and-bone-marrow-aspirate-concentrate-for-articular-cartilage-lesions-of-the-talus
#10
Nathan S Lanham, John J Carroll, Minton T Cooper, Venkat Perumal, Joseph S Park
Background Articular cartilage lesions of the talus remain a challenging clinical problem because of the lack of natural regeneration and limited treatment options. Microfracture is often the first-line therapy, however lesions larger than 1.5 cm(2) have been shown to not do as well with this treatment method. Methods The objective of this retrospective study was to evaluate the outcomes of iliac crest bone marrow aspirate concentrate/collagen scaffold (ICBMA) and particulated juvenile articular cartilage (PJAC) for larger articular cartilage lesions of the talus...
November 30, 2016: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/27902883/metastatic-carotid-body-paraganglioma-of-lungs-and-lymph-nodes-unsuspected-diagnosis-on-ebus-tbna
#11
Kalpana Kumari, Deepali Jain, Rohit Kumar, Anant Mohan, Rakesh Kumar
Paragangliomas are tumors that originate from the extra-adrenal chromaffin and nonchromaffin cells of neural crest origin. Lymph node metastases are common, while distant metastases to lung, liver, and bone are rare events and usually occur in the presence of a long standing clinically evident primary tumor. Primary diagnosis of paraganglioma at a metastatic site without a known primary is a diagnostic challenge. We report a case of an adult woman with incidentally detected metastasis to bilateral lungs from an occult carotid body paraganglioma, which presented a cytopathological diagnostic dilemma on EBUS-TBNA from paratracheal lymph nodes...
November 30, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27901393/comparison-of-desired-radiographic-advancement-distance-and-true-advancement-distance-required-for-patellar-tendon-tibial-plateau-angle-reduction-to-the-ideal-90%C3%A2-in-dogs-by-use-of-the-modified-maquet-technique
#12
Paul Pillard, Veronique Livet, Quentin Cabon, Camille Bismuth, Juliette Sonet, Denise Remy, Didier Fau, Claude Carozzo, Eric Viguier, Thibaut Cachon
OBJECTIVE To evaluate the validity of 2 radiographic methods for measurement of the tibial tuberosity advancement distance required to achieve a reduction in patellar tendon-tibial plateau angle (PTA) to the ideal 90° in dogs by use of the modified Maquet technique (MMT). SAMPLE 24 stifle joints harvested from 12 canine cadavers. PROCEDURES Radiographs of stifle joints placed at 135° in the true lateral position were used to measure the required tibial tuberosity advancement distance with the conventional (A(M)) and correction (A(E)) methods...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27900710/customized-tantalum-augmented-reverse-shoulder-arthroplasty-for-glenoid-bone-defect-and-excessive-medialization-description-of-the-technique
#13
Nicola Ivaldo, Tony Mangano, Giovanni Caione, Mario Rossoni, Angelo Ligas
BACKGROUND: Glenoid bone defect and excessive medialization could represent challenging issues during reverse shoulder arthroplasty, especially in the setting of revision surgery. Although a solution is offered by the Boileau's BIO-RSA technique in primary cases, only autologous iliac crest bone graft and homologous graft from bone banks are available for revision surgeries, with known disadvantages and risk of graft resorption and implant failure. MATERIALS AND METHODS: We describe in this work a new technique based on a customized porous tantalum device to be used in salvage situations, aimed at lateralization of the glenoid component of a reverse shoulder arthroplasty...
December 2016: Musculoskeletal Surgery
https://www.readbyqxmd.com/read/27895972/genetic-basis-of-nonsyndromic-and-syndromic-tooth-agenesis
#14
REVIEW
Xiaoqian Ye, Ali B Attaie
Human dentition development is a long and complex process which involves a series of reciprocal and sequential interactions between the embryonic stomodeal epithelium and the underlying neural crest-derived mesenchyme. Despite environment disturbances, tooth development is predominantly genetically controlled. To date, more than 200 genes have been identified in tooth development. These genes implied in various signaling pathways such as the bone morphogenetic protein, fibroblast growth factor, sonic hedgehog homolog, ectodysplasin A, wingless-type MMTV integration site family (Wnt), and transform growth factor pathways...
December 2016: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27894525/canine-lateral-incisor-transposition-controlling-root-resorption-with-a-bone-anchored-t-loop-retraction
#15
Yu Lin Hsu, Chris H Chang, W Eugene Roberts
A 12-year-old girl presented with a Class II Division 1 malocclusion, complicated by a complete transposition of the maxillary left canine into the position normally occupied by the left lateral incisor. Dental and medical histories were noncontributory. Brackets were bonded on all maxillary teeth, from first molar to first molar, except for the left lateral incisor. Because the lateral incisor was not engaged on the archwire, the tooth was free to physiologically move out of the path of canine root movement...
December 2016: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/27894321/encephalomyocarditis-virus-infection-in-macaca-sylvanus-and-hystrix-cristata-from-an-italian-rescue-centre-for-wild-and-exotic-animals
#16
Giusy Cardeti, Valeria Mariano, Claudia Eleni, Marco Aloisi, Goffredo Grifoni, Stefania Sittinieri, Giampiero Dante, Valeria Antognetti, Efrem Alessandro Foglia, Antonella Cersini, Alberigo Nardi
BACKGROUND: The Encephalomyocarditis virus (EMCV) is a small, non enveloped, positive sense single-stranded RNA virus in the genus Cardiovirus, family Picornaviridae, with two known serotypes. It is spread worldwide and infects a huge range of vertebrate hosts with zoonotic potential for humans. The pig is the mammal most likely to be impacted on with the disease, but EMCV occurrence has also been reported in non-human primates and in a variety of domestic, captive and wild animals. Until now, human cases have been very rare and the risk appears to be almost negligible in spite of human susceptibility to the infection...
November 28, 2016: Virology Journal
https://www.readbyqxmd.com/read/27894174/modified-iliac-crest-reconstruction-with-bone-cement-for-reduction-of-donor-site-pain-and-morbidity-after-open-wedge-high-tibial-osteotomy-a-prospective-study
#17
Jong Seong Lee, Yong Jee Park, Lih Wang, Yong Suk Chang, Gautam M Shetty, Kyung Wook Nha
Purpose: This study was to determine the efficacy of iliac crest reconstruction using bone cement in reducing pain and morbidity at the donor site in patients undergoing open wedge high tibial osteotomy (OWHTO) with tricortical iliac crest autologous graft. Materials and Methods: Thirty-three patients who underwent iliac crest reconstruction using polymethyl methacrylate (PMMA) bone cement (group A) and thirty patients who had no iliac crest reconstruction (group B) were enrolled in this study...
December 1, 2016: Knee Surgery & related Research
https://www.readbyqxmd.com/read/27890196/-nonunion-after-distal-radius-fracture-a-review
#18
P Liverneaux, S Facca, J J Hidalgo Diaz
Nonunion after distal radius fracture is rare, serious and unpredictable. The preferred treatment is resection of the nonunion zone followed by open reduction and internal fixation with autologous iliac crest bone graft. When the distal fragment is less than 5mm high, a dorsal plate that bridges the radiocarpal joint is recommended. In patients with low functional demands, radiocarpal fusion is a logical choice. The bone healing rate is 58% and could be improved by using a vascular graft. Bone healing is not synonymous with good clinical outcomes...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27886334/microsatellite-loci-and-genetic-structure-of-artificial-populations-of-cotesia-flavipes-hymenoptera-braconidae
#19
L O S Anjos, R F Peixoto, D M S Chanquinie, L R Pinto, S A Creste, L L Dinardo-Miranda, M G A Landell, E V Tambarussi, R Vencovsky
Cotesia flavipes (Cameron) is a parasitoid wasp used in the biological control of the sugarcane borer (Diatraea saccharalis) (Fabr., 1794). Studies on the genetic diversity of C. flavipes are hampered by the lack of highly polymorphic molecular markers. In this report, a set of 11 microsatellite loci were developed from an enriched library of C. flavipes. Four microsatellite loci were polymorphic and were screened in 212 C. flavipes individuals (183 females and 29 males) that were randomly sampled from seven rearing laboratory populations...
November 21, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27885641/apophyseal-ossification-of-the-iliac-crest-in-forensic-age-estimation-computed-tomography-standards-for-modern-australian-subadults
#20
Nicolene Lottering, Clair L Alston-Knox, Donna M MacGregor, Maree T Izatt, Caroline A Grant, Clayton J Adam, Laura S Gregory
This study contrasts the ontogeny of the iliac crest apophysis using conventional radiography and multislice computed tomography (MSCT), providing probabilistic information for age estimation of modern Australian subadults. Retrospective abdominopelvic MSCT data acquired from 524 Australian individuals aged 7-25 and surveillance radiographs of adolescent idiopathic scoliosis patients included in the Paediatric Spine Research Group Progression Study (n = 531) were assessed. Ossification scoring of pseudo-radiographs and three-dimensional (3D) volume-rendered reconstructions using Risser (1958) quantitative descriptors indicate discrepancies in age estimates, stage allocation, and conflicting morphological progression...
November 25, 2016: Journal of Forensic Sciences
keyword
keyword
35847
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"