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https://www.readbyqxmd.com/read/28445914/clinical-significance-of-intraluminal-contrast-enhancement-in-patients-with-spontaneous-cervical-artery-dissection-a%C3%A2-black-blood-mri-study
#1
Eva Coppenrath, Olga Lenz, Nora Sommer, Nina Lummel, Jennifer Linn, Karla Treitl, Fabian Bamberg, Maximilian Reiser, Thomas Pfefferkorn, Tobias Saam
Purpose Recent studies have suggested that intraluminal thrombi show contrast enhancement on carotid black-blood T1w MRI. The aim of this study was to evaluate the significance of intraluminal contrast enhancement (iCE) regarding symptom status in patients with spontaneous cervical artery dissection (sCAD). Methods 33 consecutive patients (19 men) with sCAD received a brain MRI (DIFF, T2w, T2*w, FLAIR) and a multi-sequence 3T-MRI with fat-saturated high-resolution black-blood T1w-sequences pre- and post-contrast, contrast-enhanced MR angiography and TOF images of carotid and vertebral arteries...
April 26, 2017: RöFo: Fortschritte Auf Dem Gebiete der Röntgenstrahlen und der Nuklearmedizin
https://www.readbyqxmd.com/read/28445810/circulating-cadmium-concentration-and-risk-of-aortic-aneurysms-a-nested-case-control-study-within-the-malm%C3%A3-diet-and-cancer-cohort
#2
Björn Fagerberg, Yan Borné, Gerd Sallsten, J Gustav Smith, Stefan Acosta, Margaretha Persson, Olle Melander, Niklas Forsgard, Anders Gottsäter, Bo Hedblad, Lars Barregard, Gunnar Engström
BACKGROUND AND AIMS: Diet and smoking expose the general population to cadmium (Cd), which is a toxic metal that accumulates in the arterial wall. In experimental studies, Cd causes reductions in proliferation of smooth muscle cells and cellular synthesis of procollagen. The aim of this study was to examine whether blood Cd levels, a valid measure of Cd exposure, are associated with increased risk of abdominal aortic aneurysm (AAA). METHODS: All middle-aged men and women enrolled in the Malmö Diet and Cancer study (n = 30 447) were followed from the baseline examination in 1991-1996 through 2009...
April 8, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28445692/perspectives-on-testicular-sex-cord-stromal-tumors-and-those-composed-of-both-germ-cells-and-sex-cord-stromal-derivatives-with-a-comparison-to-corresponding-ovarian-neoplasms
#3
Lawrence M Roth, Bingjian Lyu, Liang Cheng
Sex cord-stromal tumors (SCSTs) are the second most frequent category of testicular neoplasms, accounting for approximately 2-5% of cases. Both genetic and epigenetic factors account for the differences in frequency and histologic composition between testicular and ovarian SCSTs. For example, large cell calcifying Sertoli cell tumor and intratubular large cell hyalinizing Sertoli cell neoplasia occur in the testis but have not been described in the ovary. In this article, we discuss recently described diagnostic entities as well as inconsistencies in nomenclature used in the recent World Health Organization classifications of SCSTs in the testis and ovary...
April 23, 2017: Human Pathology
https://www.readbyqxmd.com/read/28445521/next-generation-sequencing-to-dissect-the-genetic-architecture-of-kng1-and-f11-loci-using-factor-xi-levels-as-an-intermediate-phenotype-of-thrombosis
#4
Laura Martin-Fernandez, Giovana Gavidia-Bovadilla, Irene Corrales, Helena Brunel, Lorena Ramírez, Sonia López, Juan Carlos Souto, Francisco Vidal, José Manuel Soria
Venous thromboembolism is a complex disease with a high heritability. There are significant associations among Factor XI (FXI) levels and SNPs in the KNG1 and F11 loci. Our aim was to identify the genetic variation of KNG1 and F11 that might account for the variability of FXI levels. The KNG1 and F11 loci were sequenced completely in 110 unrelated individuals from the GAIT-2 (Genetic Analysis of Idiopathic Thrombophilia 2) Project using Next Generation Sequencing on an Illumina MiSeq. The GAIT-2 Project is a study of 935 individuals in 35 extended Spanish families selected through a proband with idiopathic thrombophilia...
2017: PloS One
https://www.readbyqxmd.com/read/28445305/a-case-report-of-painless-type-a-aortic-dissection-with-intermittent-convulsive-syncope-as-initial-presentation
#5
Chun-Hsien Chen, Kuan-Ting Liu
RATIONALE: The initial presenting symptoms and signs of acute aortic dissection are so diverse that it makes early and accurate diagnosis arduous. Painless and convulsive syncope due to cardiac arrhythmia were not typical presentations of acute aortic dissection. PATIENT CONCERNS: A 61-year-old male presenting with transient consciousness loss and suspected seizure attack was sent to emergency room (ER) by ambulance. Consciousness loss accompanying with upward gaze and limb convulsion was noted in ER, and electrocardiogram monitor recorded a transient cardiac asystole then spontaneous recovery of sinus rhythm...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445280/clinical-outcome-after-endoscopic-submucosal-dissection-for-early-gastric-cancer-of-absolute-and-expanded-indication
#6
Ju Seok Kim, Sun Hyung Kang, Hee Seok Moon, Eaum Seok Lee, Seok Hyun Kim, Jae Kyu Sung, Byung Seok Lee, Hyun Yong Jeong
This study evaluated the clinical outcome of endoscopic submucosal dissection (ESD) in minute submucosa (SM) invasion or undifferentiated early gastric cancer (EGC) and analyzed factors related to local recurrence after ESD.We retrospectively reviewed the chart of EGC patients, who underwent ESD at our tertiary hospital between January 2009 and 2015. The patients' characteristics and clinical outcomes were compared among an absolute indication, minute SM invasion, and undifferentiated EGC group.Of 885 total patients, 729 composed the absolute indication group; 65, the differentiated, SM invasion group; and 51, the undifferentiated, confined mucosa group...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445191/evaluation-of-horner-syndrome-in-the-mri-era
#7
Ama Sadaka, Samantha L Schockman, Karl C Golnik
BACKGROUND: To identify the etiologies of adult Horner syndrome (HS) in the MRI era using a targeted evaluation approach and to assess the value and yield of targeted imaging. METHODS: A retrospective chart review was performed of 200 adult outpatients with HS, confirmed with cocaine eyedrop testing. Patients were divided into subgroups based on the presence or absence of symptoms and those who did or did not receive additional testing with hydroxyamphetamine drops...
April 25, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28444887/morphological-study-of-the-atrioventricular-conduction-system-and-purkinje-fibers-in-yak
#8
Deyong Duan, Sijiu Yu, Yan Cui, Chaoxu Li
We studied the morphology of the atrioventricular conduction system (AVCS) and Purkinje fibers of the yak. Light and transmission electron microscopy were used to study the histological features of AVCS. The distributional characteristics of the His-bundle, the left bundle branch (LBB), right bundle branch (RBB), and Purkinje fiber network of yak hearts were examined using gross dissection, ink injection, and ABS casting. The results showed that the atrioventricular node (AVN) of yak located in the right side of interatrial septum and had a flattened ovoid shape...
April 26, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28444558/evolution-of-surgical-treatment-for-rectal-cancer-a-review
#9
Sanjeev Dayal, Nick Battersby, Tom Cecil
Surgery that produces an optimal total mesorectal excision (TME) resection specimen remains the cornerstone of curative rectal cancer management. In the modern era, despite the results of recent randomised trials, laparoscopic TME is a crucial technique in the TME surgery armamentarium. Laparoscopic surgery offers the benefit of magnified views that aid sharp and precise dissection. However operating in the confines of a narrow pelvis, particularly when the mesorectum is bulky, requires significant technical skill...
April 25, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28444542/risk-factors-for-postoperative-hypocalcemia
#10
Giovanni Docimo, Roberto Ruggiero, Giuseppina Casalino, Gianmattia Del Genio, Ludovico Docimo, Salvatore Tolone
Hypocalcaemia is one of the most common complications after thyroidectomy; however, it is still unclear what preoperative factors could predict this event. The aim of this study was to evaluate the role of risk factors for hypocalcaemia after total thyroidectomy (TT). Consecutive patients who underwent total thyroidectomyat our institution between January 2014 and January 2016 were enrolled. The clinical and pathologic characteristics and surgical details of normocalcemic and hypocalcemic patients were compared...
April 25, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28444433/boundaries-of-the-thoracic-paravertebral-space-potential-risks-and-benefits-of-the-thoracic-paravertebral-block-from-an-anatomical-perspective
#11
Esther A C Bouman, Judith M Sieben, Andrea J R Balthasar, Elbert A Joosten, Hans-Fritz Gramke, Maarten van Kleef, Arno Lataster
PURPOSE: Thoracic paravertebral block (TPVB) may be an alternative to thoracic epidural analgesia. A detailed knowledge of the anatomy of the TPV-space (TPVS), content and adnexa is essential in understanding the clinical consequences of TPVB. The exploration of the posterior TPVS accessibility in this study allows (1) determination of the anatomical boundaries, content and adnexa, (2) description of an ultrasound-guided spread of low and high viscous liquid. METHODS: In two formalin-fixed specimens, stratification of the several layers and the 3D-architecture of the TPVS were dissected, observed and photographed...
April 25, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28444381/evidence-for-very-recent-positive-selection-in-mongolians
#12
Kazuhiro Nakayama, Jun Ohashi, Kazuhisa Watanabe, Lkagvasuren Munkhtulga, Sadahiko Iwamoto
Mongols, the founders of the largest continental empire in history, successfully adapted to the harsh environments of Inner Asia through nomadic pastoralism. Considerable interest exists in ascertaining whether genetic adaptation also contributed to the Mongols' success, and dissecting the genome diversity of present-day populations in Mongolia can help address this question. To this end, we determined the genotypes of nearly 2.4 million single nucleotide polymorphisms (SNPs) of 96 unrelated Mongolian individuals in Ulaanbaatar city, and performed genome-wide scans for population-specific positive selection...
April 21, 2017: Molecular Biology and Evolution
https://www.readbyqxmd.com/read/28444195/dna-methylome-analysis-reveals-distinct-epigenetic-patterns-of-ascending-aortic-dissection-and-bicuspid-aortic-valve
#13
Sun Pan, Hao Lai, Yiru Shen, Charles Breeze, Stephan Beck, Tao Hong, Chunsheng Wang, Andrew E Teschendorff
Epigenetics may mediate the effects of environmental risk factors on disease, including heart disease. Thus, measuring the DNA methylome offers the opportunity to identify novel disease biomarkers and novel insights into disease mechanisms. The DNA methylation landscape of ascending aortic dissection (AD) and bicuspid aortic valve (BAV) with aortic aneurysmal dilatation remain uncharacterized. The present study aimed to explore the genome-wide DNA methylation landscape underpinning these two diseases. Methods and results: We used Illumina 450k DNA methylation beadarrays to analyze 21 ascending aorta samples, including 10 cases with AD, 5 with BAV and 6 healthy controls...
April 19, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28443600/retroauricular-approach-for-targeted-cochlear-therapy-experiments-in-wistar-albino-rats
#14
Selçuk Mülazimoğlu, Emre Ocak, Gülşah Kaygusuz, Mustafa Kürşat Gökcan
BACKGROUND: As the idea of stem cell technology in the treatment of sensorial hearing loss has emerged over the past decades, the need for in vivo models for related experiments becomes explicit. One of the most common experimental models for inner ear stem cell delivery experiments is the Wistar albino rat (WAR). AIMS: To investigate the surgical anatomy of the temporal bone of the WAR with respect to the dissection steps, operative techniques, and potential pitfalls from surgery...
April 6, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28443120/dissecting-low-atmospheric-pressure-stress-transcriptome-responses-to-the-components-of-hypobaria-in-arabidopsis
#15
Mingqi Zhou, Jordan B Callaham, Matthew Reyes, Michael Stasiak, Alberto Riva, Agata K Zupanska, Mike A Dixon, Anna-Lisa Paul, Robert J Ferl
Controlled hypobaria presents biology with an environment that is never encountered in terrestrial ecology, yet the apparent components of hypobaria are stresses typical of terrestrial ecosystems. High altitude, for example, presents terrestrial hypobaria always with hypoxia as a component stress, since the relative partial pressure of O2 is constant in the atmosphere. Laboratory-controlled hypobaria, however, allows the dissection of pressure effects away from the effects typically associated with altitude, in particular hypoxia, as the partial pressure of O2 can be varied...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28442685/deep-sclerectomy
#16
Sylvain Roy, André Mermoud
Filtering surgery evolved from the classic trabeculectomy, in which penetration into the anterior chamber is a necessary step, toward nonpenetrating deep sclerectomy. The first procedure presents several serious complications, such as durable hypotony, hyphema, flat anterior chamber, choroidal detachment, endophthalmitis, and surgery-induced cataract. To avoid such drawbacks, a novel nonpenetrating technique was designed to improve the predictability of the intraocular pressure (IOP)-lowering action, while reducing the incidence of the immediate postoperative complications encountered with the penetrating method...
2017: Developments in Ophthalmology
https://www.readbyqxmd.com/read/28442660/anatomic-feasibility-of-next-generation-stent-grafts-for-the-management-of-type-a-aortic-dissection-in-japanese-patients
#17
Naoki Fujimura, Shinji Kawaguchi, Hideaki Obara, Akihiro Yoshitake, Masanori Inoue, Satoshi Otsubo, Yuko Kitagawa, Hideyuki Shimizu
BACKGROUND: The aims of the present study were to analyze the anatomical characteristics of type A aortic dissections (TAAD) in Japanese patients and evaluate the feasibility of 3 next-generation stent grafts dedicated to ascending/arch aortic lesions.Methods and Results:We analyzed 172 consecutive patients surgically treated for TAAD at 2 institutions between 2007 and 2015. Computed tomography (CT) images and operative records were used to identify the location of entry tear (ET)...
April 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28442498/identification-and-characterization-of-a-novel-ppar%C3%AE-regulated-and-7%C3%AE-hydroxyl-bile-acid-preferring-cytosolic-sulfotransferase-ml-stl-sult2a8
#18
Lu Feng, Yee-Lok Yuen, Jian Xu, Xing Liu, Martin Yan-Chun Chan, Kai Wang, Wing-Ping Fong, Wing-Tai Cheung, Susanna Sau-Tuen Lee
PPARα has been known to play a pivotal role in orchestrating lipid, glucose, and amino acid metabolism via transcriptional regulation of its target genes expression during energy deprivation. Recent evidence also suggesting PPARα is involved in bile acid metabolism, but how PPARα modulates the homeostasis of bile acids during fasting is still not clear. In a mechanistic study aiming to dissect the spectrum of PPARα target genes involved in metabolic response to fasting, we identified a novel mouse gene (herein named mL-STL) which shared extensive homology to Sult2a subfamily of a superfamily of cytosolic sulfotransferases, implying its potential function in sulfonation...
April 25, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28442240/cercopithifilaria-bainae-in-rhipicephalus-sanguineus-sensu-lato-ticks-from-dogs-in-brazil
#19
Marcos Antônio Bezerra Santos, Islanne Barbosa de Souza, Lucia Oliveira de Macedo, Carlos Alberto do Nascimento Ramos, Ana Gabriela de Oliveira Rego, Leucio Câmara Alves, Rafael Antonio Nascimento Ramos, Gílcia Aparecida de Carvalho
Rhipicephalus sanguineus sensu lato (s.l.) ticks act as intermediate host for a range of canine vector-borne pathogens, including nematodes ranked in the genus Cercopithifilaria. Though being the object of several studies in the last years, information on the distribution of these parasites is still lacking. In this study, the occurrence of Cercopithifilaria spp. was investigated in on-host population of R. sanguineus s.l. collected from naturally infested dogs. Ticks (n=1906, including one larva, 294 nymphs and 1611 adults) were sampled on domestic dogs (n=155) living in the municipality of Garanhuns (northeastern Brazil)...
April 17, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28442221/a-laparoscopic-approach-is-best-for-retroperitoneal-lymph-node-dissection-yes
#20
James R Porter
No abstract text is available yet for this article.
April 22, 2017: Journal of Urology
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