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https://www.readbyqxmd.com/read/28087639/vegfd-modulates-both-angiogenesis-and-lymphangiogenesis-during-zebrafish-embryonic-development
#1
Neil I Bower, Adam J Vogrin, Ludovic Le Guen, Huijun Chen, Steven A Stacker, Marc G Achen, Benjamin M Hogan
Vascular endothelial growth factors (VEGFs) control angiogenesis and lymphangiogenesis during development and in pathological conditions. In the zebrafish trunk, Vegfa controls the formation of intersegmental arteries by primary angiogenesis and Vegfc is essential for secondary angiogenesis, the formation of veins and lymphatics. VEGFD has been largely thought of as dispensable for vascular development in vertebrates. Here, we generated a zebrafish vegfd mutant by genome editing. vegfd mutants display significant defects in facial lymphangiogenesis independent of vegfc function...
January 13, 2017: Development
https://www.readbyqxmd.com/read/28069095/deficits-in-social-cognition-an-unveiled-signature-of-multiple-sclerosis
#2
Moussa A Chalah, Samar S Ayache
BACKGROUND AND OBJECTIVES: Multiple sclerosis (MS) is a chronic progressive inflammatory disease of the central nervous system, representing the primary cause of non-traumatic disability in young adults. Cognitive dysfunction can affect patients at any time during the disease process and might alter the six core functional domains. Social cognition is a multi-component construct that includes the theory of mind, empathy and social perception of emotions from facial, bodily and vocal cues...
January 10, 2017: Journal of the International Neuropsychological Society: JINS
https://www.readbyqxmd.com/read/28049450/yawning-reduces-facial-temperature-in-the-high-yawning-subline-of-sprague-dawley-rats
#3
Jose R Eguibar, Carlos A Uribe, Carmen Cortes, Amando Bautista, Andrew C Gallup
BACKGROUND: Yawning is a stereotyped behavior that enhances blood flow to the skull, and the resulting counterflow has been hypothesized as a mechanism for brain cooling. Studies have shown that yawns are strongly associated with physiological and pathological conditions that increase brain temperature, and that they are followed by equivalent decreases in brain temperature. However, measured reductions in cranial or facial temperatures following yawning have yet to be reported, to our knowledge...
January 3, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/28045852/overview-on-criteria-for-mep-monitoring
#4
David B MacDonald
Intraoperative motor evoked potentials include the D-wave as a surrogate for long-term motor outcome and muscle motor evoked potentials as a surrogate for early outcome. Their efficacy depends on excluding confounding factors and on warning criteria; insufficiently sensitive criteria could result in unpredicted deficits, whereas excessively sensitive ones could cause false alarms deterring surgical treatment and jading surgeons to alerts, eventually leading to deficits through failure to intervene. Although D-waves have few indications, they are nonsynaptic, linear, and stable-properties that support amplitude reduction criteria: >50% for intramedullary spinal cord tumor surgery and >30% to 40% for peri-Rolandic brain surgery...
January 2017: Journal of Clinical Neurophysiology: Official Publication of the American Electroencephalographic Society
https://www.readbyqxmd.com/read/28045833/incidence-of-associated-brain-and-ophthalmic-anomalies-in-frontoethmoidal-encephalomeningocele-evaluated-by-multidetector-computed-tomography-facial-bone-imaging
#5
Netsiri Dumrongpisutikul, Atip Triampo, Pun Janthanimi, Sukalaya Lerdlum
INTRODUCTION: Frontoethmoidal encephalomeningocele (FEEM) is a congenital disorder characterized by herniation of brain and meninges through an anterior skull defect. The main pathological changes are found internally at the foramen cecum and externally at the frontonaso-orbital region. The aim of this study was to determine the incidence of developmental anomalies found in FEEM using multidetector computed tomography images of the facial bone. METHODS: A total of 78 patients who underwent multidetector computed tomography scan of the facial bone during the January 1, 2003 to June 31, 2012 study period were retrospectively reviewed...
December 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28034444/improvement-in-imaging-common-temporal-bone-pathologies-at-3-t-mri-small-structures-benefit-from-a-small-field-of-view
#6
M Schulze, K Reimann, A Seeger, U Klose, U Ernemann, T K Hauser
AIM: To compare image quality and evaluate its clinical importance in common temporal bone pathologies of a pTX-SPACE (parallel transmit [pTX] three-dimensional turbo spin-echo with variable flip angle [SPACE]) magnetic resonance imaging (MRI) sequence improved for spatial resolution to a standard-SPACE sequence exhibiting the same scan time at 3 T. MATERIALS AND METHODS: Thirty-four patients were examined using a standard-SPACE and resolution improved pTX-SPACE sequence at 3 T MRI...
December 26, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/28027285/acute-rhinosinusitis-in-immunosuppressed-children-diagnostic-and-therapeutic-management
#7
Amit Ritter, Salvador Fischer, Eitan Yaniv, Tuvia Hadar, Ethan Soudry, Daniel Shai, Dror Gilony, Gideon Bachar
BACKGROUND: Immunosuppressive therapy places pediatric patients at risk of developing life-threatening sinonasal infections. Diagnosis and treatment is challenging owing to nonspecific signs and symptoms. The aim of the study was to present our department's experience with the surgical management of acute rhinosinusitis in immunosuppressed children. METHODS: The records of all children with a hematologic or oncologic disease who underwent endoscopic sinus surgery (ESS) for acute rhinosinusitis from January 2005 to May 2014 were reviewed...
December 23, 2016: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28018731/accurate-measurement-of-the-pulse-wave-delay-with-imaging-photoplethysmography
#8
Alexei A Kamshilin, Igor S Sidorov, Laura Babayan, Maxim A Volynsky, Rashid Giniatullin, Oleg V Mamontov
Assessment of the cardiovascular parameters using noncontact video-based or imaging photoplethysmography (IPPG) is usually considered as inaccurate because of strong influence of motion artefacts. To optimize this technique we performed a simultaneous recording of electrocardiogram and video frames of the face for 36 healthy volunteers. We found that signal disturbances originate mainly from the stochastically enhanced dichroic notch caused by endogenous cardiovascular mechanisms, with smaller contribution of the motion artefacts...
December 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27977032/multiple-pathological-ocular-findings-in-a-patient-with-phace-syndrome
#9
Elif Demirkilinc Biler, Onder Uretmen
The authors describe a 2-year-old girl diagnosed as having posterior fossa malformations, hemangiomas, arterial anomalies, cardiac anomalies, and eye abnormalities (PHACE) syndrome that presented with a large facial hemangioma of the forehead and eyelid, ptosis, microphthalmia, persistent pupillary membrane and pupillary ectopia, congenital oculomotor nerve palsy of the affected eye, and bilateral optic disc dysplasia. [J Pediatr Ophthalmol Strabismus. 2016;53:e72-e74.].
December 8, 2016: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/27976552/parotidectomy-outcomes-diagnosis-and-complications-on-pediatric-patients-twelve-years-of-experiences-in-a-tertiary-care-center
#10
Oğuz Kuşcu, Bahar Kayahan, Övsen Önay, Rıza Önder Günaydın, Mehmet Umut Akyol
The aim of this study is to evaluate parotid masses management in pediatric population. From June 2002 to December 2014, 13 patients under the age of 18 with parotid tumors were treated via surgery at Hacettepe University Department of Otorhinolaryngology. Information on patients' demographics, clinical and histopathologic tumor characteristics and treatment modalities with results was obtained from medical records, retrospectively. The age was ranging between 8-17 years. Ten (76.9%) patients had benign tumors and 8 (61...
2016: Turkish Journal of Pediatrics
https://www.readbyqxmd.com/read/27965072/rare-lesions-of-the-internal-auditory-canal
#11
Kentaro Watanabe, Mary In-Ping Huang Cobb, Ali R Zomorodi, Calhoun D Cunningham, Yoichi Nonaka, Shunsuke Satoh, Allan H Friedman, Takanori Fukushima
BACKGROUND: Approximately 95% of tumors occurring within the internal auditory canal (IAC) are vestibular schwannomas (VSs). Many undergo stereotactic radiation without definitive tissue diagnosis. Rare IAC tumors are not all radiosensitive and are poorly described. METHODS: Between 1992 and 2015, 289 consecutive patients with IAC lesions operated on were retrospectively reviewed. RESULTS: Fifteen patients (5.2%) (16 operations) had unusual histological findings, including non-vestibular schwannomas (two facial schwannomas, two cochlear schwannomas, two intermedius schwannomas), three meningiomas, three cavernous hemangiomas, a mucosa associated lymphoid tissue (MALT) lymphoma, an arachnoid cyst, and a lipochoristoma...
December 10, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27932747/-a-rare-case-of-metastatic-brain-tumors-in-the-bilateral-cerebellopontine-angles
#12
Yasuhiro Node, Naoyuki Harada, Hiroyuki Masuda, Kosuke Kondo, Masaaki Nemoto, Nobuo Sugo
We encountered a rare case of metastatic brain tumors in the bilateral cerebellopontine angles. The patient was a 61-year-old man, who visited an otorhinolaryngology clinic with complaints of rapidly progressing bilateral hearing impairment and facial palsy. The patient was referred to our hospital because tumorous lesions were suspected in the bilateral cerebellopontine angles on brain magnetic resonance imaging. Regarding tumor markers, the patient's cancer antigen 19-9 and carcinoembryonic antigen levels were high, which suggested metastasis...
December 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27928409/advanced-vestibular-schwannoma-a-case-of-optic-disc-oedema-without-hydrocephalus
#13
Rita Joana Castro Matos, Pedro Nuno Beirão Cardoso Quadrado Gil, Joana Margarida Silva Pires, Nádia Lopes
A wide range of pathologies can cause papilloedema. Vestibular schwannoma is a benign and slow-growing tumour that causes symptoms and findings on ophthalmic examination when the diagnostic is delayed. The authors report a case of a 64-year-old male who presented with bilateral disc oedema secondary to a vestibular schwannoma grade 4. Obstructive hydrocephalus was not evident. The authors suggest that cerebrospinal fluid protein may have a role in the formation of optic disc oedema. A right suboccipital craniectomy was performed to remove the tumour, leading to secondary facial palsy...
October 2016: Neuro-ophthalmology
https://www.readbyqxmd.com/read/27907099/analysis-of-a-mouse-skin-model-of-tuberous-sclerosis-complex
#14
Yanan Guo, John R Dreier, Juxiang Cao, Heng Du, Scott R Granter, David J Kwiatkowski
Tuberous Sclerosis Complex (TSC) is an autosomal dominant tumor suppressor gene syndrome in which patients develop several types of tumors, including facial angiofibroma, subungual fibroma, Shagreen patch, angiomyolipomas, and lymphangioleiomyomatosis. It is due to inactivating mutations in TSC1 or TSC2. We sought to generate a mouse model of one or more of these tumor types by targeting deletion of the Tsc1 gene to fibroblasts using the Fsp-Cre allele. Mutant, Tsc1ccFsp-Cre+ mice survived a median of nearly a year, and developed tumors in multiple sites but did not develop angiomyolipoma or lymphangioleiomyomatosis...
2016: PloS One
https://www.readbyqxmd.com/read/27894562/todd-s-paresis-in-acute-mild-head-trauma
#15
Alan Cowley, David Wright, Thomas Breen, Richard Lyon
We present the case of an adult male who sustained Todd's paresis after a traumatically induced seizure in a patient with an isolated facial injury. The precipitating event was head trauma from a golf club. The patient had no previous history of seizures and went on to make a complete neurologic recovery with no cerebral pathology noted. A literature review suggests that Todd's paresis after trauma is very rare as opposed to occurring in the medical or long-term brain injury settings. Although the authors acknowledge that it may occur in trauma, the awareness within the prehospital setting is sufficiently rare for this case report to be of interest to prehospital clinicians; it is important prehospital clinicians are aware of this condition...
November 2016: Air Medical Journal
https://www.readbyqxmd.com/read/27893468/linear-folliculotropic-cd30-positive-lymphomatoid-drug-reaction
#16
Yi-Chin Chen, Yu-Hung Wu
We report a unique case of probable drug-induced CD30-positive lymphomatoid reaction. A 58-year-old woman presented with bilateral facial eruptions of 3 weeks duration composed of erythematosus papules in a linear distribution. The pathological features demonstrated a dense dermal and follicular infiltrate of many medium- to large-sized atypical CD30-positive lymphoid cells. The rash resolved rapidly after discontinuation of her medication 1 week later and did not recur. This case highlights the importance of clinicopathological correlation...
November 22, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27890767/implications-of-vestibular-schwannoma-consistency-analysis-of-140-cases-regarding-radiological-and-clinical-features
#17
Ahmed R Rizk, Abbas Adam, Isabel Gugel, Jens Schittenhelm, Marcos Tatagiba, Florian H Ebner
OBJECTIVE: To evaluate the effects of vestibular schwannoma (VS) consistency on internal auditory canal (IAC) widening, MRI-appearance, presenting symptoms and facial nerve outcome. MATERIAL AND METHODS: We performed a retrospective analysis of 140 consecutive patients presenting with unilateral VS who underwent surgical treatment in our Department. Operative videos were analyzed, and the tumors were classified into soft and firm according to the resectability with the ultrasonic aspirator at 40% power...
November 24, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27888671/sclerosing-polycystic-adenosis-of-the-parotid-gland-a-systematic-review-and-report-of-2-new-cases
#18
Carlos A Espinosa, Laura Rua, Héctor E Torres, Álvaro Fernández Del Valle, Rui P Fernandes, Juan C Devicente
PURPOSE: We sought to evaluate clinical-epidemiologic aspects, pathologic characteristics, and treatment of sclerosing polycystic adenosis (SPA) of the parotid gland and to report 2 new cases. MATERIALS AND METHODS: We conducted a systematic review following PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines for studies published in or before June 2016. The inclusion criteria were as follows: final diagnosis of SPA affecting the parotid gland and articles published in Spanish or English...
November 2, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27882258/dysmorphic-facial-features-and-other-clinical-characteristics-in-two-patients-with-pex1-gene-mutations
#19
Mehmet Gunduz, Ozlem Unal
Peroxisomal disorders are a group of genetically heterogeneous metabolic diseases related to dysfunction of peroxisomes. Dysmorphic features, neurological abnormalities, and hepatic dysfunction can be presenting signs of peroxisomal disorders. Here we presented dysmorphic facial features and other clinical characteristics in two patients with PEX1 gene mutation. Follow-up periods were 3.5 years and 1 year in the patients. Case I was one-year-old girl that presented with neurodevelopmental delay, hepatomegaly, bilateral hearing loss, and visual problems...
2016: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/27875510/facial-evaluation-in-holoprosencephaly
#20
Valentina Pucciarelli, Simona Bertoli, Marina Codari, Pierangelo Veggiotti, Alberto Battezzati, Chiarella Sforza
Holoprosencephaly (HPE) is a malformation of the brain, occurring during the first weeks of pregnancy, that may be associated with several craniofacial alterations and different pathological conditions.The authors describe a 2-year-old girl with lobar HPE, epilepsy, but with a roughly normal face. Despite the macroscopic, clinical appearance, a facial morphometric analysis, performed through a stereophotogrammetric system, showed features that diverge from reference subjects and that are considered typical of HPE...
November 21, 2016: Journal of Craniofacial Surgery
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