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https://www.readbyqxmd.com/read/27911847/zika-virus-cell-tropism-in-the-developing-human-brain-and-inhibition-by-azithromycin
#1
Hanna Retallack, Elizabeth Di Lullo, Carolina Arias, Kristeene A Knopp, Matthew T Laurie, Carmen Sandoval-Espinosa, Walter R Mancia Leon, Robert Krencik, Erik M Ullian, Julien Spatazza, Alex A Pollen, Caleigh Mandel-Brehm, Tomasz J Nowakowski, Arnold R Kriegstein, Joseph L DeRisi
The rapid spread of Zika virus (ZIKV) and its association with abnormal brain development constitute a global health emergency. Congenital ZIKV infection produces a range of mild to severe pathologies, including microcephaly. To understand the pathophysiology of ZIKV infection, we used models of the developing brain that faithfully recapitulate the tissue architecture in early to midgestation. We identify the brain cell populations that are most susceptible to ZIKV infection in primary human tissue, provide evidence for a mechanism of viral entry, and show that a commonly used antibiotic protects cultured brain cells by reducing viral proliferation...
November 29, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27908279/co-existing-intracranial-and-extracranial-carotid-artery-atherosclerotic-plaques-and-recurrent-stroke-risk-a-three-dimensional-multicontrast-cardiovascular-magnetic-resonance-study
#2
Yilan Xu, Chun Yuan, Zechen Zhou, Le He, Donghua Mi, Rui Li, Yuanyuan Cui, Yilong Wang, Yongjun Wang, Gaifen Liu, Zhuozhao Zheng, Xihai Zhao
BACKGROUND: As a systemic disease, atherosclerosis commonly affects intracranial and extracranial carotid arteries simultaneously which is defined as co-existing plaques. Previous studies demonstrated that co-existing atherosclerotic diseases are significantly associated with ischemic cerebrovascular events. The aim of this study was to investigate the characteristics of co-existing intracranial and extracranial carotid atherosclerotic plaques and their relationships with recurrent stroke by using 3D multi-contrast magnetic resonance (MR) vessel wall imaging...
December 2, 2016: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/27906905/description-of-13-infants-born-during-october-2015-january-2016-with-congenital-zika-virus-infection-without-microcephaly-at-birth-brazil
#3
Vanessa van der Linden, André Pessoa, William Dobyns, A James Barkovich, Hélio van der Linden Júnior, Epitacio Leite Rolim Filho, Erlane Marques Ribeiro, Mariana de Carvalho Leal, Pablo Picasso de Araújo Coimbra, Maria de Fátima Viana Vasco Aragão, Islane Verçosa, Camila Ventura, Regina Coeli Ramos, Danielle Di Cavalcanti Sousa Cruz, Marli Tenório Cordeiro, Vivian Maria Ribeiro Mota, Mary Dott, Christina Hillard, Cynthia A Moore
Congenital Zika virus infection can cause microcephaly and severe brain abnormalities (1). Congenital Zika syndrome comprises a spectrum of clinical features (2); however, as is the case with most newly recognized teratogens, the earliest documented clinical presentation is expected to be the most severe. Initial descriptions of the effects of in utero Zika virus infection centered prominently on the finding of congenital microcephaly (3). To assess the possibility of clinical presentations that do not include congenital microcephaly, a retrospective assessment of 13 infants from the Brazilian states of Pernambuco and Ceará with normal head size at birth and laboratory evidence of congenital Zika virus infection was conducted...
December 2, 2016: MMWR. Morbidity and Mortality Weekly Report
https://www.readbyqxmd.com/read/27906525/the-clinical-utility-of-qsm-disease-diagnosis-medical-management-and-surgical-planning
#4
REVIEW
Sarah Eskreis-Winkler, Yan Zhang, Jingwei Zhang, Zhe Liu, Alexey Dimov, Ajay Gupta, Yi Wang
Quantitative susceptibility mapping (QSM) is an MR technique that depicts and quantifies magnetic susceptibility sources. Mapping iron, the dominant susceptibility source in the brain, has many important clinical applications. Herein, we review QSM applications in the diagnosis, medical management, and surgical treatment of disease. To assist in early disease diagnosis, QSM can identify elevated iron levels in the motor cortex of amyotrophic lateral sclerosis patients, in the substantia nigra of Parkinson's disease (PD) patients, in the globus pallidus, putamen, and caudate of Huntington's disease patients, and in the basal ganglia of Wilson's disease patients...
December 1, 2016: NMR in Biomedicine
https://www.readbyqxmd.com/read/27895770/classical-intracranial-chondrosarcoma-a-case-report
#5
Jingyang Chi, Mingchao Zhang, Jianmin Kang
Intracranial chondrosarcoma is a rare malignant cartilage-forming tumor, with only a small number of cases in the posterior cranial fossa reported previously. The present study reports the case of a 40-year-old male patient who was admitted to Tianjin Huanhu Hospital with a progressive headache and dizziness that had lasted for 2 years. Physical and neurological examinations were normal. Radiography of the skull identified an opaque lesion in the left frontal region of the brain. Cranial computed tomography and magnetic resonance imaging revealed a lesion with calcification and homogenous contrast enhancement in the left frontal region...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27893859/hippocampal-calcification-on-computed-tomography-in-relation-to-cognitive-decline-in-memory-clinic-patients-a-case-control-study
#6
Remko Kockelkoren, Jill B De Vis, Willem P Th M Mali, Jeroen Hendrikse, Pim A de Jong, Annemieke M Rozemuller, Huiberdina L Koek
BACKGROUND: It was recently shown that calcification of the hippocampus can be detected on computed tomography (CT) images and these calcifications occur in up to 20% of people over 50 years of age. However, little is known about hippocampal calcification and its relation to cognition and cognitive decline. Therefore, the aim of this study was to (1) determine the prevalence of hippocampal calcification on CT in memory clinic patients controls, and (2) to assess its relation with cognitive decline...
2016: PloS One
https://www.readbyqxmd.com/read/27869982/characteristics-of-the-first-cases-of-microcephaly-possibly-related-to-zika-virus-reported-in-the-metropolitan-region-of-recife-pernambuco-state-brazil
#7
Alexander Vargas, Eduardo Saad, George Santiago Dimech, Roselene Hans Santos, Maria Auxiliadora Vieira Caldas Sivini, Luciana Carolina Albuquerque, Patricia Michelly Santos Lima, Idalacy de Carvalho Barreto, Michelly Evangelista de Andrade, Nathalie Mendes Estima, Patrícia Ismael de Carvalho, Rayane Souza de Andrade Azevedo, Rita de Cássia de Oliveira Vasconcelos, Romildo Siqueira Assunção, Lívia Carla Vinhal Frutuoso, Greice Madeleine Ikeda do Carmo, Priscila Bochi de Souza, Marcelo Yoshito Wada, Wanderson Kleber de Oliveira, Cláudio Maierovitch Pessanha Henriques, Jadher Percio
OBJECTIVE: to describe the first cases of microcephaly possibly related to Zika virus in live born babies reported in the Metropolitan Region of Recife, Pernambuco State, Brazil. METHODS: this was a descriptive case series study (cases reported between August 1st and October 31st 2015), using medical record data and data from a questionnaire answered by the mothers of the babies. RESULTS: 40 microcephaly cases were confirmed, distributed in eight municipalities within the Metropolitan Region, with Recife itself having the highest concentration of cases (n=12); median head circumference was 29 cm, median chest girth was 31 cm and median weight was 2,628 grams; 21/25 cases had brain calcification, ventriculomegaly or lissencephaly; 27 of the 40 mothers reported rash during pregnancy, 20 in the first trimester and 7 in the second trimester, as well as itching, headache, myalgia and absence of fever...
October 2016: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/27867918/clinical-and-radiological-characteristics-of-angiomatous-meningiomas
#8
Juyoung Hwang, Doo-Sik Kong, Ho Jun Seol, Do-Hyun Nam, Jung-Il Lee, Jung Won Choi
BACKGROUND: Angiomatous meningioma is a rare histological subtype of meningioma. Therefore, this specific medical condition is rarely reviewed in the literature. In the present work, we report the clinical and radiological features with postoperative outcomes of angiomatous meningioma. METHODS: This retrospective study included the patients who were pathologically diagnosed with angiomatous meningioma after surgical resection between February 2010 and September 2015 in our institute...
October 2016: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/27866705/epileptic-encephalopathy-caused-by-mutations-in-the-guanine-nucleotide-exchange-factor-dennd5a
#9
Chanshuai Han, Reem Alkhater, Tawfiq Froukh, Arakel G Minassian, Melissa Galati, Rui Han Liu, Maryam Fotouhi, Julia Sommerfeld, Ayman J Alfrook, Christian Marshall, Susan Walker, Peter Bauer, Stephen W Scherer, Olaf Riess, Rebecca Buchert, Berge A Minassian, Peter S McPherson
Epileptic encephalopathies are a catastrophic group of epilepsies characterized by refractory seizures and cognitive arrest, often resulting from abnormal brain development. Here, we have identified an epileptic encephalopathy additionally featuring cerebral calcifications and coarse facial features caused by recessive loss-of-function mutations in DENND5A. DENND5A contains a DENN domain, an evolutionarily ancient enzymatic module conferring guanine nucleotide exchange factor (GEF) activity to multiple proteins serving as GEFs for Rabs, which are key regulators of membrane trafficking...
December 1, 2016: American Journal of Human Genetics
https://www.readbyqxmd.com/read/27862397/multiple-calcifying-pseudoneoplasms-of-the-neuraxis-mcapnon-distinct-entity-capnon-variant-or-old-neurocysticercosis
#10
Maram Abdaljaleel, Rajarshi Mazumder, Chirag B Patel, Kyuseok Im, Whitney Pope, Linda M Liau, Harry V Vinters, William H Yong
We report a case of multiple calcifying pseudoneoplasms of the neuraxis (MCAPNON) with associated multifocal perivascular microcalcifications and vascular calcinosis. Calcifying pseudoneoplasm of the neuraxis (CAPNON) is a very rare condition that may arise in extra-axial and occasionally, in intra-axial locations. Moreover, it is nearly always a solitary mass with only one case with two lesions reported. While the etiology and pathogenesis of CAPNON remains unclear, the histopathology findings of this entity have been well described...
November 10, 2016: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/27862320/primary-familial-brain-calcification-in-the-ibgc2-kindred-all-linkage-roads-lead-to-slc20a2
#11
EDITORIAL
Amit Batla, Maria Stamelou
No abstract text is available yet for this article.
November 15, 2016: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/27857919/multiple-intracranial-high-density-foci-after-brain-parenchymal-catheterization
#12
Tae-Min Choi, Kyu Yong Cho, Byung Chan Lim, Jun Seob Lim, Rae-Seop Lee
OBJECTIVE: To report an observational investigation of small high attenuated foci in computed tomography (CT) scan followed by brain parenchymal catheterization. METHODS: From January 2011 to March 2015, we retrospectively reviewed the 381 patients who had undergone brain catheterization in our clinic and enrolled the patients who had newly developed high attenuation foci in the postoperative CT scans. The brain CT scans were reviewed about the lesion location, Hounsfield Unit (HU) and the time of appearance...
October 2016: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/27857802/giant-melanocytic-nevi-with-neurocutaneous-melanosis-masquerading-as-neurofibromas
#13
Vykuntaraju K Gowda, Anita Basude, Sahana M Srinivas, Maya Bhat
Neurocutaneous melanosis is congenital melanocytic nevus with neurological manifestations. We report a 4-year-old female child presenting with hyperpigmented and nodular skin lesion associated with developmental delay and convulsions. The child had multiple brownish-black nevi on the face and chest and giant melanocytic nevi on thoraco-abdomen, back, and gluteal region. Computed tomography scan of the brain showed calcification in the pons, right cerebellar hemisphere, and left medial temporal lobe. Skin biopsy done from nodular hyperpigmented site was suggestive of melanocytic nevi...
July 2016: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/27847782/traumatic-pseudoaneurysm-related-to-calcified-nodules-of-cerebral-convexity-dura-mater-in-an-american-college-football-player
#14
Yoo Sung Jeon, Jong Gon Lee, Young Il Chun, Joon Cho, Woo Jin Choe
Repeated concussion is common among football players; however, these minor blunt head trauma rarely result in serious complications. We report a case of a young college football player who presented acute subdural hematoma, cerebral edema, and seizure due to pseudoaneurysm rupture. The pseudoaneurysm, located at the cortical branch of the middle cerebral artery, was speculated to be formed by dural calcification and adhesion with the underlying brain, possibly due to repeated concussions. Following successful excision of the pseudoaneurysm and control of brain swelling, the patient recovered without sequelae and was discharged after a short while...
September 2016: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/27847571/sclerosing-meningioma-radiological-and-clinical-characteristics-of-21-cases
#15
Ho Kang, Jin Wook Kim, Young-Bem Se, Yun-Sik Dho, Seung Hong Choi, Sung-Hye Park
OBJECTIVE: A rare subtype of meningioma, sclerosing meningioma is not included in the current World Health Organization classification of meningiomas and is classified into the category of other morphological variation subtypes. Sclerosing meningioma is often misdiagnosed to other non-benign meningioma or malignant neoplasm, so it is important to diagnose sclerosing type correctly. We analyzed the radiological and clinical characteristics of a series of sclerosing meningiomas. METHODS: Twenty-one patients who underwent surgery in one institute with a histopathologically proven sclerosing meningioma were included from 2006 to 2014...
November 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27816278/erratum-to-diffuse-brain-hypoperfusion-in-advanced-leukoencephalopathy-with-calcifications-and-cysts-journal-of-stroke-and-cerebrovascular-diseases-2016-25-8-august-e111-e113
#16
Emanuele Bartolini, Andrea Bianchi, Ilaria Bartolomei, Alessandra Vella, Lapo Sali, Antonio Ciccarone, Fabrizio Salvi, Mario Mascalchi
No abstract text is available yet for this article.
November 2, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27815101/cerebral-embolic-protection-during-transcatheter-aortic-valve-replacement
#17
Samir R Kapadia, Susheel Kodali, Raj Makkar, Roxana Mehran, Ronald M Lazar, Robert Zivadinov, Michael G Dwyer, Hasan Jilaihawi, Renu Virmani, Saif Anwaruddin, Vinod H Thourani, Tamim Nazif, Norman Mangner, Felix Woitek, Amar Krishnaswamy, Stephanie Mick, Tarun Chakravarty, Mamoo Nakamura, James M McCabe, Lowell Satler, Alan Zajarias, Wilson Y Szeto, Lars Svensson, Maria C Alu, Roseann M White, Carlye Kraemer, Azin Parhizgar, Martin B Leon, Axel Linke
BACKGROUND: Neurological events and brain infarction after transcatheter aortic valve replacement (TAVR) are concerns which may be reduced with transcatheter embolic protection (TEP). OBJECTIVE: Evaluate the safety and efficacy of TEP during TAVR. METHODS: Nineteen centers randomized 363 patients undergoing TAVR to safety (n=123), device imaging (n=121), and control imaging (n=119). The primary safety endpoint was major adverse cardiac and cerebrovascular events (MACCE) at 30 days and the primary efficacy endpoint was reduction in new lesion volume in protected brain territories on MRI scans at 2-7 days...
October 27, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27812690/characterizing-the-pattern-of-anomalies-in-congenital-zika-syndrome-for-pediatric-clinicians
#18
Cynthia A Moore, J Erin Staples, William B Dobyns, André Pessoa, Camila V Ventura, Eduardo Borges da Fonseca, Erlane Marques Ribeiro, Liana O Ventura, Norberto Nogueira Neto, J Fernando Arena, Sonja A Rasmussen
Importance: Zika virus infection can be prenatally passed from a pregnant woman to her fetus. There is sufficient evidence to conclude that intrauterine Zika virus infection is a cause of microcephaly and serious brain anomalies, but the full spectrum of anomalies has not been delineated. To inform pediatric clinicians who may be called on to evaluate and treat affected infants and children, we review the most recent evidence to better characterize congenital Zika syndrome. Observations: We reviewed published reports of congenital anomalies occurring in fetuses or infants with presumed or laboratory-confirmed intrauterine Zika virus infection...
November 3, 2016: JAMA Pediatrics
https://www.readbyqxmd.com/read/27795889/sturge-weber-syndrome-with-intracerebral-hemorrhage-a-case-report
#19
Masashi Chonan, Yasuhiro Suzuki, Shinya Haryu, Shoji Mashiyama, Teiji Tominaga
INTRODUCTION: Sturge-Weber syndrome (SWS) is a rare congenital disease that affects the brain, skin, and eyes, and is a sporadically occurring neurocutaneous syndrome that affects intracerebral veins, which is associated with venous thrombosis. However, intracranial hemorrhage in patients with SWS is rare. We herein report a rare case of SWS with intracerebral hemorrhage derived from sinus thrombosis. CASE DESCRIPTION: A 62-year-old man suddenly fell into a coma and was admitted to our hospital...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27778104/armored-brain-in-a-young-girl-with-a-syndromal-hydrocephalus
#20
Ilaria Viozzi, Kirsten van Baarsen, André Grotenhuis
The authors present a case of a young girl affected by a syndromal hydrocephalus who developed a bilateral ossified chronic subdural hematoma with the typical radiological appearance of "the armored brain". Bilateral calcified chronic subdural hematoma is a rare complication of ventriculoperitoneal shunt. There is controversy in the treatment, but most published literature discourages a surgical intervention to remove the calcifications.
October 25, 2016: Acta Neurochirurgica
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