keyword
MENU ▼
Read by QxMD icon Read
search

Cranium

keyword
https://www.readbyqxmd.com/read/29215443/scaffold-free-bone-regeneration-using-platelet-rich-fibrin-in-calvarial-defect-model
#1
Yeo Reum Jeon, Mi Jung Kim, Yong Oock Kim, Tai Suk Roh, Won Jai Lee, Eun Hye Kang, In Sik Yun
Bone regeneration is a complex process influenced by various physiological factors. Platelet-rich plasma (PRP) contains many growth factors and has shown osteogenic effects. The PRP is usually activated before use. However, the authors showed that nonactivated PRP (nPRP) and activated PRP have comparable osteogenic effects in the previous study. Generally, a scaffold has been needed for the application of PRP in the cranial defect model. In this study, the authors aimed to compare the performance of scaffold free platelet-rich fibrin (PRF) to nPRP as an adjuvant for bone regeneration...
December 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29214665/cephalic-muscle-development-in-the-australian-lungfish-neoceratodus-forsteri
#2
Janine M Ziermann, Alice M Clement, Rolf Ericsson, Lennart Olsson
Lungfishes are the extant sister group of tetrapods. As such, they are important for the study of evolutionary processes involved in the water to land transition of vertebrates. The evolution of a true neck, that is, the complete separation of the pectoral girdle from the cranium, is one of the most intriguing morphological transitions known among vertebrates. Other salient changes involve new adaptations for terrestrial feeding, which involves both the cranium and its associated musculature. Historically, the cranium has been extensively investigated, but the development of the cranial muscles much less so...
December 7, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/29214509/a-three-dimensional-stereotaxic-atlas-of-the-gray-short-tailed-opossum-monodelphis-domestica-brain
#3
Piotr Majka, Natalia Chlodzinska, Krzysztof Turlejski, Tomasz Banasik, Ruzanna L Djavadian, Władysław P Węglarz, Daniel K Wójcik
The gray short-tailed opossum (Monodelphis domestica) is a small marsupial gaining recognition as a laboratory animal in biomedical research. Despite numerous studies on opossum neuroanatomy, a consistent and comprehensive neuroanatomical reference for this species is still missing. Here we present the first three-dimensional, multimodal atlas of the Monodelphis opossum brain. It is based on four complementary imaging modalities: high resolution ex vivo magnetic resonance images, micro-computed tomography scans of the cranium, images of the face of the cutting block, and series of sections stained with the Nissl method and for myelinated fibers...
December 6, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/29213018/morphological-changes-indicative-of-brain-hemisphere-development-and-handedness-in-fixed-brains-and-on-ct-mri-images
#4
Taiko Kitamura, Hiroko Suzuki, Hidenori Yokota, Eiju Watanabe, Jinzo Yamada
We measured the lengths of some parts of the right and left hemispheres (HEs) in 70 formalin-fixed brains and on 15 computed tomography/magnetic resonance imaging (CT/MRI) images (7 left-handed and 8 right-handed cases) to clarify the morphological changes indicating which HE developed earlier and handedness. In many cases of the fixed brains, 1) the distance from the frontal pole to the occipital pole was longer in the left HE than in the right HE, 2) the distance from the middle plane to the lateral-most portion of the HE was wider in the right HE than in the left HE, 3) the left occipital pole elongated more posteriorly and covered the right occipital pole, and 4) the volume of each HE was nearly the same...
2017: Okajimas Folia Anatomica Japonica
https://www.readbyqxmd.com/read/29204207/primary-ewing-s-sarcoma-of-cranium-in-a-pediatric-patient
#5
Ashutosh Das Sharma, Jayesh Singh, Jigna Bhattacharya
Ewing's sarcoma primarily involving the skull is an unusual occurrence (1% of all Ewing's sarcoma cases) with very few reported cases in the published literature. The challenge in such cases is to establish a definitive diagnosis before starting the multidisciplinary treatment approach. We report such a rare case in a 13-year-old boy who is being treated at our institute with an intention of adding to the limited information we currently have on diagnosis, management, and the outcome of such cases.
July 2017: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/29203766/a-new-stem-sarcopterygian-illuminates-patterns-of-character-evolution-in-early-bony-fishes
#6
Jing Lu, Sam Giles, Matt Friedman, Min Zhu
Discoveries of putative stem sarcopterygians from the late Silurian and Early Devonian of South China have increased our knowledge of the initial diversification of osteichthyans while also highlighting incongruities in character evolution in this major jawed vertebrate group. Character-rich endocrania are incompletely preserved for early bony fishes, limiting a detailed understanding of complex internal morphology and evolutionary changes in the cranium. Here we report a new sarcopterygian (Ptyctolepis brachynotus gen...
December 5, 2017: Nature Communications
https://www.readbyqxmd.com/read/29201839/trauma-patterns-of-drowning-after-falling-from-bridges-over-han-river
#7
Jung Hwan Lee, Chung Kee Chough, Jae Il Lee
Objective: Recently, the number of patients who fell or jumped from bridges over Han River has rapidly increased. However, the injury patterns and outcomes of these patients have been poorly characterized. The aim of this study was to determine the injury characteristics of these patients. Methods: We reviewed the medical records of all patients who were transferred to the Emergency Room due to jumping or falling from bridges over Han River between 2011 and 2015...
October 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29198399/influence-of-physiological-stress-on-the-presence-of-hypoplasia-and-fluctuating-asymmetry-in-a-medieval-population-from-the-village-of-sypniewo
#8
Aleksandra Gawlikowska-Sroka, Pawel Dabrowski, Jacek Szczurowski, Edyta Dzieciolowska-Baran, Tomasz Staniowski
This study aims to estimate the levels of physiological stress in the medieval rural population of Sypniewo by evaluating patterns of fluctuating asymmetry (FA) and enamel hypoplasia (EH), and provide information on the influence of physiological stress during the prenatal and perinatal period on early childhood development. Stress is defined as any external or internal condition that challenges homeostasis of an organism. FA is associated with physiological stress occurring mainly during prenatal development and early childhood...
December 2017: International Journal of Paleopathology
https://www.readbyqxmd.com/read/29196064/acute-management-of-tension-pneumocephalus-in-a-pediatric-patient-a-case-report
#9
Lauren M L'Hommedieu, Michael W Dingeldein, Krystal L Tomei, Brendan J Kilbane
BACKGROUND: Tension pneumocephalus is a rare but life-threatening condition in which air gains entry into the cranium and exerts mass effect on the brain, resulting in increased intracranial pressure. It occurs most frequently secondary to head trauma, particularly to the orbits or sinuses. CASE REPORT: A 13-year-old male sustained facial trauma from a motor vehicle collision and was found to have tension pneumocephalus on computer tomography. The patient underwent immediate rapid sequence intubation without preceding positive pressure ventilation in the emergency department...
November 28, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29187780/the-skull-of-epidolops-ameghinoi-from-the-early-eocene-itabora%C3%A3-fauna-southeastern-brazil-and-the-affinities-of-the-extinct-marsupialiform-order-polydolopimorphia
#10
Robin M D Beck
The skull of the polydolopimorphian marsupialiform Epidolops ameghinoi is described in detail for the first time, based on a single well-preserved cranium and associated left and right dentaries plus additional craniodental fragments, all from the early Eocene (53-50 million year old) Itaboraí fauna in southeastern Brazil. Notable craniodental features of E. ameghinoi include absence of a masseteric process, very small maxillopalatine fenestrae, a prominent pterygoid fossa enclosed laterally by a prominent ectopterygoid crest, an absent or tiny transverse canal foramen, a simple, planar glenoid fossa, and a postglenoid foramen that is immediately posterior to the postglenoid process...
2017: Journal of Mammalian Evolution
https://www.readbyqxmd.com/read/29184744/multidirectional-cranial-distraction-osteogenesis-with-simplified-modifications-for-treating-sagittal-synostosis
#11
Ataru Sunaga, Yasushi Sugawara, Hideaki Kamochi, Akira Gomi, Daekwan Chi, Rintaro Asahi, Masanori Mori, Shunji Sarukawa, Hirokazu Uda, Kotaro Yoshimura
Background: Multidirectional cranial distraction osteogenesis (MCDO) is a procedure of ours developed earlier for treating craniosynostosis. However, the numerous bone flaps led to prolonged operative time and occasional bone detachment from dura. We have since simplified the osteotomy design. In treating sagittal synostosis, required bone flaps have been reduced to 11 (from ~20). Methods: In a 2-year period (2014-2015), 5 boys with sagittal synostosis underwent MCDO using our simplified and fixed-form osteotomy...
October 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/29172007/frequency-specific-effects-of-repetitive-magnetic-stimulation-on-primary-astrocyte-cultures
#12
Darren Clarke, Marissa A Penrose, Tamasin Penstone, Paula I Fuller-Carter, Livia C Hool, Alan R Harvey, Jennifer Rodger, Kristyn A Bates
BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) is a non-invasive technique that uses magnetic pulses over the cranium to induce electrical currents in underlying cortical tissue. Although rTMS has shown clinical utility for a number of neurological conditions, we have only limited understanding of how rTMS influences cellular function and cell-cell interactions. OBJECTIVE: In this study, we sought to investigate whether repeated magnetic stimulation (rMS) can influence astrocyte biology in vitro...
2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/29148040/the-endocranial-shape-of-australopithecus-africanus-surface-analysis-of-the-endocasts-of-sts-5-and-sts-60
#13
Amélie Beaudet, Jean Dumoncel, Frikkie de Beer, Stanley Durrleman, Emmanuel Gilissen, Anna Oettlé, Gérard Subsol, John Francis Thackeray, José Braga
Assessment of global endocranial morphology and regional neuroanatomical changes in early hominins is critical for the reconstruction of evolutionary trajectories of cerebral regions in the human lineage. Early evidence of cortical reorganization in specific local areas (e.g. visual cortex, inferior frontal gyrus) is perceptible in the non-human South African hominin fossil record. However, to date, little information is available regarding potential global changes in the early hominin brain. The introduction of non-invasive imaging techniques opens up new perspectives for the study of hominin brain evolution...
November 16, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29141045/csf-in-the-ventricles-of-the-brain-behaves-as-a-relay-medium-for-arteriovenous-pulse-wave-phase-coupling
#14
William E Butler, Pankaj K Agarwalla, Patrick Codd
The ventricles of the brain remain perhaps the largest anatomic structure in the human body without established primary purpose, even though their existence has been known at least since described by Aristotle. We hypothesize that the ventricles help match a stroke volume of arterial blood that arrives into the rigid cranium with an equivalent volume of ejected venous blood by spatially configuring cerebrospinal fluid (CSF) to act as a low viscosity relay medium for arteriovenous pulse wave (PW) phase coupling...
2017: PloS One
https://www.readbyqxmd.com/read/29140981/wavelet-brain-angiography-suggests-arteriovenous-pulse-wave-phase-locking
#15
William E Butler
When a stroke volume of arterial blood arrives to the brain, the total blood volume in the bony cranium must remain constant as the proportions of arterial and venous blood vary, and by the end of the cardiac cycle an equivalent volume of venous blood must have been ejected. I hypothesize the brain to support this process by an extraluminally mediated exchange of information between its arterial and venous circulations. To test this I introduce wavelet angiography methods to resolve single moving vascular pulse waves (PWs) in the brain while simultaneously measuring brain pulse motion...
2017: PloS One
https://www.readbyqxmd.com/read/29138651/melanotic-neuroectodermal-tumor-of-infancy-a-rare-presentation-of-an-extremely-rare-neoplasm-and-diagnostic-implications-in-gombe-nigeria
#16
Babatunde Oludare Fakuade, Joshua Biodun Adeoye
Melanotic neuro-ectodermal tumor of infancy is very rare. A unique neoplasm of the formative years, it typically involves the face or cranium; possesses rapid, expansile growth; presents as a firm swelling and displays a high rate of recurrence. Its rarity and unique features make diagnosis and management quite challenging. This challenge is increased in resource-limited settings like ours and with atypical presentation, such as was seen at our center, where patient presented with a bony hard swelling.
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29137666/utilization-of-the-behavior-change-wheel-framework-to-develop-a-model-to-improve-cardiometabolic-screening-for-people-with-severe-mental-illness
#17
Christina Mangurian, Grace C Niu, Dean Schillinger, John W Newcomer, James Dilley, Margaret A Handley
BACKGROUND: Individuals with severe mental illness (e.g., schizophrenia, bipolar disorder) die 10-25 years earlier than the general population, primarily from premature cardiovascular disease (CVD). Contributing factors are complex, but include systemic-related factors of poorly integrated primary care and mental health services. Although evidence-based models exist for integrating mental health care into primary care settings, the evidence base for integrating medical care into specialty mental health settings is limited...
November 14, 2017: Implementation Science: IS
https://www.readbyqxmd.com/read/29136349/clinical-delineation-of-a-subtype-of-frontonasal-dysplasia-with-creased-nasal-ridge-and-upper-limb-anomalies-report-of-six-unrelated-patients
#18
Daphné Lehalle, Umut Altunoglu, Ange-Line Bruel, Eric Arnaud, Patricia Blanchet, Jong-Woo Choi, Julie Désir, Esra Kiliç, Damien Lederer, Lucile Pinson, Christel Thauvin-Robinet, Amihood Singer, Julien Thevenon, Patrick Callier, Hulya Kayserili, Laurence Faivre
Frontonasal dysplasias are rare congenital malformations of frontonasal process-derived structures, characterized by median cleft, nasal anomalies, widely spaced eyes, and cranium bifidum occultum. Several entities of syndromic frontonasal dysplasia have been described, among which, to date, only a few have identified molecular bases. We clinically ascertained a cohort of 124 individuals referred for frontonasal dysplasia. We identified six individuals with a similar phenotype, including one discordant monozygous twin...
December 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29129342/stature-estimation-using-measurements-of-the-cranium-for-populations-in-the-united-states
#19
Kelsey M Kyllonen, Terrie Simmons-Ehrhardt, Keith L Monson
Stature estimation is an important component of the biological profile. Human crania are sometimes recovered in the absence of other skeletal material in forensic casework, and stature estimation equations using cranial measurements have not been developed for populations in the United States. Both simple and multiple regression equations for estimating stature were developed from standard cranial measurements taken from both a cranial CT dataset and the Forensic Data Bank, and the resulting equations were tested using a separate dataset...
October 18, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29129125/clinical-efficacy-and-safety-of-a-highly-conformal-supine-hybrid-forward-and-inverse-planned-intensity-modulated-radiation-therapy-technique-for-craniospinal-irradiation
#20
Safia K Ahmed, Jon J Kruse, Thomas B Bradley, Chris J Beltran, Nadia N Issa Laack
PURPOSE: To demonstrate the clinical efficacy and safety of a highly conformal, supine, hybrid forward and inverse planned intensity modulated radiation therapy (IMRT) technique for photon craniospinal irradiation (CSI). METHODS: Patients who received supine, hybrid IMRT CSI from 2009 to 2014 were included in this retrospective review. Clinical target volume (CTV) was defined as intracranial contents and thecal sac, including nerve roots. Dose was prescribed such that >99% of CTV received >99% of prescription and >95% of the planning target volume received >95% of prescription, with no attempt to include vertebral bodies...
November 12, 2017: Acta Oncologica
keyword
keyword
85133
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"