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https://www.readbyqxmd.com/read/27897152/a-novel-multi-frequency-electrical-impedance-tomography-spectral-imaging-algorithm-for-early-stroke-detection
#1
Lin Yang, Canhua Xu, Meng Dai, Feng Fu, Xuetao Shi, Xiuzhen Dong
Multi-frequency electrical impedance tomography (MFEIT) reconstructs the image of conductivity inside the human body based on the dependence of tissue conductivity on frequency. As there exist differences in the conductivity over frequency between blood, ischemic cortical tissue and normal cortical tissue, MFEIT has potential application in the detection of acute stroke. However, because the conductivity distribution of the human head is highly inhomogeneous and the conductivities of normal head tissue and stroke lesion tissue both change with frequency, the anomaly and normal head tissues are often mixed together in the reconstructed image, which makes it difficult to discern the anomaly...
November 29, 2016: Physiological Measurement
https://www.readbyqxmd.com/read/27896319/correlation-between-pollution-and-decline-of-scleractinian-cladocora-caespitosa-linnaeus-1758-in-the-gulf-of-gabes
#2
Akram El Kateb, Claudio Stalder, Christoph Neururer, Chiara Pisapia, Silvia Spezzaferri
During an expedition in 2014 in the Gulf of Gabes that aimed to evaluate the impact of the pollution of the phosphate industry on the marine environment, numerous dead coral fragments were retrieved from several stations along a 18 km long transect in front of the industry complex of Gabes. Detailed taxonomy of these coral fragments shows clearly that all fragments belong to the species Cladocora caespitosa (Linnaeus, 1758). Quantitative analysis of the coral fragments indicates a positive correlation with stations characterized by positive bathymetric anomalies...
November 2016: Heliyon
https://www.readbyqxmd.com/read/27895973/review-of-the-genetic-basis-of-jaw-malformations
#3
REVIEW
Mairaj K Ahmed, Xiaoqian Ye, Peter J Taub
Genetic etiologies for congenital anomalies of the facial skeleton, namely, the maxilla and mandible, are important to understand and recognize. Malocclusions occur when there exist any significant deviation from what is considered a normal relationship between the upper jaw (maxilla) and the lower jaw (mandible). They may be the result of anomalies of the teeth alone, the bones alone, or both. A number of genes play a role in the facial skeletal development and are regulated by a host of additional regulatory molecules...
December 2016: Journal of Pediatric Genetics
https://www.readbyqxmd.com/read/27895906/respiratory-distress-associated-with-heterotopic-gastrointestinal-cysts-of-the-oral-cavity-a-case-report
#4
Marco Antonio Méndez Sáenz, Mario de Jesús Villegas González, Marco A Ponce Camacho, Lucia M Cavazos Cavazos, Bárbara Sáenz Ibarra, Blanca I Esquivel García, José Luis Treviño González
Heterotopic gastrointestinal cysts of the oral cavity are benign lesions usually discovered during infancy. Their pathogenesis is not very clear. They are rare congenital anomalies that result from remnants of foregut-derived epithelium in the head, neck, thorax or abdomen during embryonic development. The majority of these lesions occur in the anterior ventral surface of the tongue and extend to the floor of the mouth. They are confused clinically by surgeons in cases of head and neck masses in children as ranulas, dermoid and thyroglossal cysts, and lymphangioma...
December 2016: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/27895538/syndactyly-release
#5
REVIEW
Tara L Braun, Jeffrey G Trost, William C Pederson
Syndactyly is one of the most common congenital hand anomalies treated by pediatric plastic surgeons. Established principles of syndactyly separation dictate the timing and order of syndactyly release, with the goals of surgery being the creation of an anatomically normal webspace, tension-free closure of soft tissue, and return of function to the fingers. Numerous surgical methods have been described, many of which involve the use of local flaps to reconstruct the commissure and full-thickness skin grafts for coverage of raw areas...
November 2016: Seminars in Plastic Surgery
https://www.readbyqxmd.com/read/27894681/results-of-micronucleus-assays-with-individuals-who-are-occupationally-and-environmentally-exposed-to-mercury-lead-and-cadmium
#6
REVIEW
Armen Nersesyan, Michael Kundi, Monika Waldherr, Tahereh Setayesh, Miroslav Mišík, Georg Wultsch, Metka Filipic, Gustavo Rafael Mazzaron Barcelos, Siegfried Knasmueller
Millions of humans are exposed occupationally and environmentally to lead, mercury and cadmium compounds. Mercury compounds are less abundant but some of them belong to the most toxic chemicals which are known. We evaluated the literature to find out if these metals act in humans as genotoxic carcinogens and if their health effects can be predicted by use of micronucleus (MN) assays with lymphocytes and/or with other genotoxicity tests. Numerous studies showed that lead and mercury induce cancer in humans and also in animals, in vitro experiments with cultured cells indicate that they cause DNA damage via different molecular mechanisms including release of reactive oxygen species and interactions with DNA repair processes...
October 2016: Mutation Research
https://www.readbyqxmd.com/read/27891787/evaluation-of-the-western-australian-register-of-developmental-anomalies-thirty-five-years-of-surveillance
#7
Wendy N Nembhard, Carol Bower
BACKGROUND: The birth defects component of the Western Australian Register for Developmental Anomalies (WARDA-BD) was evaluated to assess its efficiency, effectiveness, and data quality. METHODS: WARDA-BD was evaluated using the Centers for Disease Control and Prevention Guidelines for Evaluating Public Health Surveillance Systems and Data Quality Standards from the National Birth Defects Prevention Network. The evaluation included interviews with Register staff, local community organizations, parents, clinicians, and researchers; process observation; and secondary data analyses...
November 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
https://www.readbyqxmd.com/read/27875174/screenit-visual-analysis-of-cellular-screens
#8
Kasper Dinkla, Hendrik Strobelt, Bryan Genest, Stephan Reiling, Mark Borowsky, Hanspeter Pfister
High-throughput and high-content screening enables large scale, cost-effective experiments in which cell cultures are exposed to a wide spectrum of drugs. The resulting multivariate data sets have a large but shallow hierarchical structure. The deepest level of this structure describes cells in terms of numeric features that are derived from image data. The subsequent level describes enveloping cell cultures in terms of imposed experiment conditions (exposure to drugs). We present Screenit, a visual analysis approach designed in close collaboration with screening experts...
January 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27866998/tomographic-inversion-of-time-domain-resistivity-and-chargeability-data-for-the-investigation-of-landfills-using-a-priori-information
#9
Giorgio De Donno, Ettore Cardarelli
In this paper, we present a new code for the modelling and inversion of resistivity and chargeability data using a priori information to improve the accuracy of the reconstructed model for landfill. When a priori information is available in the study area, we can insert them by means of inequality constraints on the whole model or on a single layer or assigning weighting factors for enhancing anomalies elongated in the horizontal or vertical directions. However, when we have to face a multilayered scenario with numerous resistive to conductive transitions (the case of controlled landfills), the effective thickness of the layers can be biased...
November 17, 2016: Waste Management
https://www.readbyqxmd.com/read/27863341/physical-constraints-on-the-non-dimensional-absorption-coefficients-of-compressional-and-shear-waves-for-viscoelastic-cylinders
#10
F G Mitri, Z E A Fellah
BACKGROUND: Normalized absorption coefficients for the longitudinal and shear waves in viscoelastic (polymer-type) materials, extracted from non-fictional experimental data showed anomalous effects, such as the generation of a negative radiation force (NRF) in plane progressive waves, negative energy absorption and extinction efficiencies and a scattering enhancement, not in agreement with energy conservation. OBJECTIVE: The objective of this work is directed towards analyzing those anomalies from the standpoint of energy conservation...
February 2017: Ultrasonics
https://www.readbyqxmd.com/read/27834645/robust-detection-of-fast-and-slow-frequency-jumps-of-atomic-clocks
#11
Lorenzo Galleani, Patrizia Tavella
This paper presents a frequency jump detector for atomic clocks. The detector considers both fast frequency jumps, which are abrupt variations of the clock frequency trend, and slow frequency jumps, which correspond to variations of the frequency trend over a finite time interval. These anomalies are particularly critical for space clocks in global navigation satellite systems (GNSS). The developed detector is robust in the sense that it can deal with time-varying frequency trends, sinusoidal terms, outliers and missing data...
November 4, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27833283/congenital-hand-anomalies-in-upper-egypt
#12
Tarek Abulezz, Mohamed Talaat, Asem Elsani, Karam Allam
BACKGROUND: Congenital hand anomalies are numerous and markedly variant. Their significance is attributed to the frequent occurrence and their serious social, psychological and functional impacts on patient's life. PATIENTS AND METHODS: This is a follow-up study of 64 patients with hand anomalies of variable severity. All patients were presented to Plastic Surgery Department of Sohag University Hospital in a period of 24 months. RESULTS: This study revealed that failure of differentiation and duplication deformities were the most frequent, with polydactyly was the most common anomaly encountered...
May 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/27818252/associated-anomalies-in-cases-with-anotia-and-microtia
#13
Claude Stoll, Yves Alembik, Beatrice Dott, Marie-Paule Roth
Infants with anotia and microtia (AM) often have other non-AM associated congenital anomalies. The purpose of this investigation was to assess the prevalence and the types of these associated anomalies in a defined population. The associated anomalies in infants with AM were collected in all livebirths, stillbirths and terminations of pregnancy during 29 years in 387,067 consecutive births in the area covered by our population-based registry of congenital malformations. Of the 146 cases with AM registered during this period, representing a prevalence of 3...
November 3, 2016: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/27805546/autophagy-is-required-for-sea-urchin-oogenesis-and-early-development
#14
Maria Agnello, Roberto Chiarelli, Chiara Martino, Liana Bosco, Maria Carmela Roccheri
Autophagy is a major intracellular pathway for the degradation and recycling of cytosolic components. Emerging evidence has demonstrated its crucial role during the embryo development of invertebrates and vertebrates. We recently demonstrated a massive activation of autophagy in Paracentrotus lividus embryos under cadmium stress conditions, and the existence of a temporal relationship between induced autophagy and apoptosis. Although there have been numerous studies on the role of autophagy in the development of different organisms, information on the autophagic process during oogenesis or at the start of development in marine invertebrates is very limited...
December 2016: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/27790464/cytogenetic-analysis-for-suspected-chromosomal-abnormalities-a-five-years-experience
#15
Sunil Kumar Polipalli, Vijay Kumar Karra, Ankur Jindal, Madhavi Puppala, Pratiksha Singh, Kanchan Rawat, Seema Kapoor
INTRODUCTION: Chromosomal abnormalities are the results of alterations in the number or structure of chromosomes causing significant human morbidity and mortality. They are responsible for a large proportion of miscarriages, developmental delay, disorders of sexual development, congenital malformations and mental retardation. AIM: The aim of this study was to describe the prevalence of different chromosomal abnormalities in North Indian patients referred for cytogenetic analysis...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27779688/-retracted-inhibitory-effects-of-ethyl-pyruvate-administration-on-human-gastric-cancer-growth-via-regulation-of-the-hmgb1-rage-and-akt-pathways-in%C3%A2-vitro-and-in%C3%A2-vivo
#16
Jing Zhang, Jin-Shui Zhu, Zhou Zhou, Wei-Xiong Chen, Ni-Wei Chen
Following the publication of this article, an interested reader drew to the attention of the Editorial Board that the above article appeared to contain a series of Figures that featured duplicated data. Following an internal investigation, the Editorial Board reached the conclusion that the allegations of the reader were well-founded. Specifically, the GAPDH bands shown in Figs. 2 and 3 are identical with those in Figs. 4C and 5D, with the exception that the images have been reversed. Furthermore, certain data in Fig...
October 19, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27767023/radiographic-study-of-the-prevalence-and-distribution-of-hypodontia-associated-with-unilateral-and-bilateral-clef-lip-and-palate-in-a-hungarian-population
#17
Ádám Berniczei-Roykó, Jan-Hendrik Tappe, Axel Krinner, Tomasz Gredes, András Végh, Katona Gábor, Kamila Linkowska-Świdzińska, Ute Ulrike Botzenhart
BACKGROUND Cleft defects are one of the most frequent birth-deformities of the orofacial region and they are commonly associated with anomalies of the tooth structure, size, shape, formation, eruption, and tooth number. The aim of our study was to evaluate the prevalence, distribution, and potential association of combined hypodontia in cleft-affected patients with regard to all types of teeth in both jaws in the permanent dentition. MATERIAL AND METHODS This retrospective radiographic analysis included patients with various types of clefts treated orthodontically in the Department of Orofacial Orthopedics and Orthodontics at Heim Pàl Children's Hospital, Budapest...
October 21, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27759605/the-fetal-care-team-care-for-pregnant-women-carrying-a-fetus-with-a-serious-diagnosis
#18
Margaret Loyet, Amy McLean, Karen Graham, Cheryl Antoine, Kathy Fossick
BACKGROUND: Women carrying a fetus with a suspected or known fetal anomaly have complex needs such as emotional and informational support and help with the logistical aspects of arranging care and treatment from numerous specialists. IMPROVEMENT IN QUALITY OF CARE FOR WOMEN CARRYING A FETUS WITH A SUSPECTED OR KNOWN FETAL ANOMALY:: Our fetal care team was initiated in 2012 to meet the needs of this high-risk pregnant population. The fetal care team nurse coordinator supports the woman and her family through all aspects of care during the pregnancy and neonatal period including scheduling appointments with multiple specialists, being there with her as a support person, keeping her updated, making sure she has accurate information about the fetal diagnosis, and helping her to navigate the complex healthcare system...
November 2016: MCN. the American Journal of Maternal Child Nursing
https://www.readbyqxmd.com/read/27748998/lung-development-requires-an-active-erk-mapk-pathway-in-the-lung-mesenchyme
#19
Olivier Boucherat, Kim Landry-Truchon, Rifdat Aoidi, Nicolas Houde, Valérie Nadeau, Jean Charron, Lucie Jeannotte
BACKGROUND: Reciprocal epithelial-mesenchymal communications are critical throughout lung development, dictating branching morphogenesis and cell specification. Numerous signaling molecules are involved in these interactions but how epithelial-mesenchymal crosstalk is coordinated remains unclear. The ERK/MAPK pathway transduces several important signals in lung formation. Epithelial inactivation of both Mek genes, encoding ERK/MAPK kinases, causes lung agenesis and death. Conversely, Mek mutation in mesenchyme results in lung hypoplasia, trachea cartilage malformations, kyphosis, omphalocele and death...
October 17, 2016: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/27692602/spermatozoa-from-infertile-patients-exhibit-differences-of-dna-methylation-associated-with-spermatogenesis-related-processes-an-array-based-analysis
#20
Cristina Camprubí, Albert Salas-Huetos, Riccardo Aiese-Cigliano, Anna Godo, Maria-Carme Pons, Giancarlo Castellano, Mark Grossmann, Walter Sanseverino, José I Martin-Subero, Nicolás Garrido, Joan Blanco
The influence of aberrant sperm DNA methylation on the reproductive capacity of couples has been postulated as a cause of infertility. This study compared the DNA methylation of spermatozoa of 19 fertile donors and 42 infertile patients using the Illumina 450K array. Clustering analysis of methylation data arranged fertile and infertile patients into two groups. Bivariate clustering analysis identified a differential distribution of samples according to the characteristics of seminogram and age, suggesting a possible link between these parameters and specific methylation profiles...
September 15, 2016: Reproductive Biomedicine Online
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