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https://www.readbyqxmd.com/read/29038408/-aortitis-syndrome-requiring-redo-bentall-procedure-with-coronary-artery-bypass-grafting-due-to-graft-detachment-report-of-a-case
#1
Masami Sotokawa, Hideyuki Tomioka, Takashi Azuma, Shigeyuki Aomi, Kenji Yamazaki
A 53-year-old woman was referred to us for reoperation of aortic root. Twenty-three years ago, she was diagnosed with aortitis and suffered from annuloaortic ectasia, aortic regurgitation, severe stenosis of left carotid and subclavian arteries and occulusion of the main trunk of left coronary artery. The left coronary system was perfused by collateral arteries from right coronary artery. She had undergone original Bentall procedure( Cooley graft 26 mm+SJM valve 25 mm) with coronary artery bypass grafting (CABG)[saphenous vein graft (SVG)-left anterior descending artery (LAD)]...
October 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/29036892/adaptive-enhancement-of-x-band-marine-radar-imagery-to-detect-oil-spill-segments
#2
Peng Liu, Ying Li, Jin Xu, Xueyuan Zhu
Oil spills generate a large cost in environmental and economic terms. Their identification plays an important role in oil-spill response. We propose an oil spill detection method with improved adaptive enhancement on X-band marine radar systems. The radar images used in this paper were acquired on 21 July 2010, from the teaching-training ship "YUKUN" of the Dalian Maritime University. According to the shape characteristic of co-channel interference, two convolutional filters are used to detect the location of the interference, followed by a mean filter to erase the interference...
October 14, 2017: Sensors
https://www.readbyqxmd.com/read/29032874/rotational-corrective-osteotomy-for-malunited-distal-diaphyseal-radius-fractures-in-children-and-adolescents
#3
Toshiyuki Kataoka, Kunihiro Oka, Tsuyoshi Murase
PURPOSE: To report our method of computer-planned rotational corrective osteotomy for malunited distal diaphyseal radius fractures in children and adolescents using a custom jig and to review the results of 4 cases. METHODS: Four patients (mean age, 13 years; range, 11-16 years) underwent computer-planned rotational corrective osteotomy for malunited distal diaphyseal radius fracture using a custom jig. We retrospectively evaluated their radiographic and clinical data...
October 9, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29025605/comparison-between-carbon-peek-volar-locking-plates-and-titanium-volar-locking-plates-in-the-treatment-of-distal-radius-fractures
#4
Dario Perugia, Matteo Guzzini, Daniele Mazza, Carlo Iorio, Carolina Civitenga, Andrea Ferretti
INTRODUCTION: Unstable intra articular fractures of distal radius are frequently being managed with open reduction and internal fixation. Volar locking plate based on polyetheretherketon (PEEK) polymer has developed lately as an alternative to conventional metallic devices. The advantage of this kind of plates include the lack of metal allergies, radiolucency, low artefacts on MRI or imaging scans and the high resistance associated to loading forces. The aim of this study was to evaluate the clinical and radiological results using a new Carbon-PEEK volar locking plate compared with titanium volar locking plates for the treatment of distal radius fractures...
October 2017: Injury
https://www.readbyqxmd.com/read/29025264/b-n-b-bond-embedded-phenalenyl-and-its-anions
#5
Haipeng Wei, Yulan Liu, Tullimilli Y Gopalakrishna, Hoa Phan, Xiaobo Huang, Lipiao Bao, Jing Guo, Jun Zhou, Shenglian Luo, Jishan Wu, Zebing Zeng
Despite the great potential of heteroatom-contained polycyclic aromatic hydrocarbons in organic optoelectronics, there are very limited reports on hetero-aromatics containing B-N-B bond in the π-scaffold. Herein, stable 1,9-dibora-9a-azaphenalenyl (DBAP) derivatives, named as BNB-embedded phenalenyls, are presented. The DBAP skeleton contains a three-center two-π-electron B-N-B moiety with total 12 π-electrons and can be regarded as the isoelectronic structure of phenalenyl cation. Chemical reduction of the phenyl derivative of DBAP by potassium generated the dianion containing 14 delocalized π-electrons, which can be regarded as isoelectronic structure of phenalenyl anion...
October 13, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29023485/a-degradation-based-sorting-method-for-lithium-ion-battery-reuse
#6
Hao Chen, Julia Shen
In a world where millions of people are dependent on batteries to provide them with convenient and portable energy, battery recycling is of the utmost importance. In this paper, we developed a new method to sort 18650 Lithium-ion batteries in large quantities and in real time for harvesting used cells with enough capacity for battery reuse. Internal resistance and capacity tests were conducted as a basis for comparison with a novel degradation-based method based on X-ray radiographic scanning and digital image contrast computation...
2017: PloS One
https://www.readbyqxmd.com/read/29019591/x-ray-dynamic-observation-of-cervical-degenerative-disease-induced-by-unbalanced-dynamic-and-static-forces-in-rats-1
#7
Hua Xie, Yongjing Huang, Luming Nong, Nanwei Xu, Gongming Gao, Dong Zhou
PURPOSE: To investigate dynamically the X-ray appearance of cervical degenerative disease induced by unbalanced dynamic and static forces in rats. METHODS: A total of 60 Sprague Dawley rats were randomized into test (n=45) and control (n=15) groups, which were randomly subdivided into the one-, three- and six-month post-operative groups. The test group included 10, 15 and 20 rats at the respective corresponding post-operative stage and the control group included five rats at each time-point...
September 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29018910/incidence-of-delayed-union-one%C3%A2-year-after-peri-acetabular-osteotomy-based-on-computed-tomography
#8
Shunsuke Akiho, Koichi Kinoshita, Ayumi Matsunaga, Satohiro Ishii, Hajime Seo, Jun Nishio, Takuaki Yamamoto
BACKGROUND: Pubic bone nonunion and delayed union are reported as post-operative complications after peri-acetabular osteotomy (PAO). However, few studies have determined the incidence of delayed union using computed tomography (CT) scans. This study aimed to determine the incidence of delayed union at one year after PAO using X-ray and CT scans. METHODS: We performed a retrospective review of 150 hips in 132 consecutive patients with acetabular dysplasia who underwent PAO between January 2012 and June 2016 and evaluated 107 hips for which pelvic CT scans taken at one year after PAO were available...
October 10, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/29017301/pelvic-incidence-can-be-changed-not-only-by-age-and-sex-but-also-by-posture-used-during-imaging
#9
Ji Won Moon, James Ki Shinn, Dalsung Ryu, Se-Yang Oh, Yu Shik Shim, Seung Hwan Yoon
OBJECTIVE: Computed tomography (CT), rather than conventional 2-dimensional radiography, was used to scan and measure pelvic parameters. The results were compared with measurements using X-ray. METHODS: Pelvic parameters were measured using both CT and X-ray in 254 patients who underwent both abdomino-pelvic CT and X-ray at the pelvic site. We assessed the similarity of the pelvic parameters between the 2 exams, as well as the correlations of pelvic parameters with sex and age...
September 2017: Korean Journal of Spine
https://www.readbyqxmd.com/read/28992299/fracture-after-radiation-therapy-for-femoral-metastasis-incidence-timing-and-clinical-features
#10
Tetsuo Shimoyama, Hirohisa Katagiri, Hideyuki Harada, Hideki Murata, Junji Wasa, Seiichi Hosaka, Takayoshi Suzuki, Mitsuru Takahashi, Hirofumi Asakura, Tetsuo Nishimura, Harumoto Yamada
We analyzed 428 femoral metastases initially treated with radiotherapy between 2002 and 2011 to clarify the clinical details of post-irradiation fractures of femoral metastasis. Patients included 161 men and 167 women, with a mean age of 62 years. Fracture incidence, fracture site, fracture risk based on X-ray images before radiotherapy, and interval from completion of radiotherapy to fracture occurrence were assessed. In addition, 24 pathological specimens obtained during 27 surgeries for these fractures were examined...
July 15, 2017: Journal of Radiation Research
https://www.readbyqxmd.com/read/28988701/choosing-the-active-x-the-human-version-of-x-inactivation
#11
REVIEW
Barbara R Migeon
Humans and rodents differ in how they carry out X inactivation (XI), the mammalian method to compensate for the different number of X chromosomes in males and females. Evolutionary changes in staging embryogenesis and in mutations within the XI center alter the process among mammals. The mouse model of XI is predicated on X counting and subsequently choosing the X to 'inactivate'. However, new evidence suggests that humans initiate XI by protecting one X in both sexes from inactivation by XIST, the noncoding RNA that silences the inactive X...
October 5, 2017: Trends in Genetics: TIG
https://www.readbyqxmd.com/read/28982306/optimal-intensity-of-warfarin-therapy-in-patients-with-mechanical-aortic-valves
#12
Kazuhiko Kido, Jennifer Ball
OBJECTIVE: To review the current guidelines and published literature in order to identify the evidence-based international normalized ratio (INR) goal in patients with a mechanical aortic valve. DATA SOURCES: Medline/PubMed, Cochrane and Google Scholar database searches for relevant articles from 1946 through March 2017 were executed using the key words "mechanical aortic valve" and "antithrombotic therapy or anticoagulation therapy or warfarin." STUDY SELECTION AND DATA EXTRACTION: All English-language observational and interventional studies assessing INR goals in patients with a mechanical aortic valve were evaluated...
January 1, 2017: Journal of Pharmacy Practice
https://www.readbyqxmd.com/read/28975080/unexpected-collection-of-pulmonary-venous-blood-from-a-pulmonary-artery-catheter-a-case-report
#13
Naomi Ono, Junko Nakahira, Sayuri Matsunami, Toshiyuki Sawai, Toshiaki Minami
BACKGROUND: Pressure and waveform at the catheter tip are continuously monitored during catheterization of pulmonary artery to ensure accurate catheter placement. We present a case in which pulmonary venous blood was unexpectedly collected from the pulmonary artery catheter despite pulmonary artery pressure and waveform detection at the catheter tip, and describe the measures taken to correct the catheter placement. CASE PRESENTATION: A 74-year-old male underwent mitral valve plasty for cardiac failure caused by mitral valve regurgitation...
December 2016: Anesthesiology and Pain Medicine
https://www.readbyqxmd.com/read/28965519/accuracy-of-the-ottawa-ankle-rules-applied-by-non-physician-providers-in-a-pediatric-emergency-department
#14
Joe MacLellan, Teya Smith, Jason Baserman, Shawn Dowling
OBJECTIVE: The Ottawa Ankle Rules (OAR) are a clinical decision tool used to minimize unnecessary radiographs in ankle and foot injuries. The OAR are a reliable tool to exclude fractures in children over 5 years of age when applied by physicians. Limited data support its use by other health care workers in children. Our objective was to determine the accuracy of the OAR when applied by non-physician providers (NPP). METHODS: Children aged 5 to 17 years presenting with an acute ankle or foot injury were enrolled...
October 2, 2017: CJEM
https://www.readbyqxmd.com/read/28965414/detergent-insoluble-proteome-analysis-revealed-aberrantly-aggregated-proteins-in-human-preeclampsia-placentas
#15
Wanling Zhang, Xing Chen, Ziqi Yan, Yang Chen, Yizhi Cui, Bingjun Chen, Chujun Huang, Weiwen Zhang, Xingfeng Yin, Qing-Yu He, Fang He, Tong Wang
Preeclampsia (PE) is a placenta disease, featured by hypertension, proteinuria and other multi-organ dysfunctions, and its etiology is unclear. We and others have shown that intensive ER stress and unfolded protein response (UPR) occur in the PE placenta. In this study, we isolated detergent-insoluble proteins (DIPs) from human placenta tissues, which were enriched with protein aggregates, to characterize the placenta UPR in PE. With data-independent acquisition (DIA) mass spectrometry, we identified 2066 DIPs across all normal (n=10) and PE (n=10) placenta samples, among which 110 and 108 DIPs were significantly up- and down- regulated in PE, respectively...
October 1, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28959069/lumbar-spine-x-ray-as-a-standard-investigation-for-all-low-back-pain-in-ghana-is-it-evidence-based
#16
Abena Y Tannor
BACKGROUND: Low back pain (LBP) has a prevalence of 84% in Africa. The commonest form of imaging is plain lumbar spine x-ray. It gives a radiation dose equivalent to 65 times a chest x-ray dose and sends one of the highest doses to the human reproductive organs. The commonest cause of LBP in Africa is degenerative disease. X-ray findings do not change mode of treatment yet most physicians still routinely request for x-rays. METHODS: This is a systematic review of databases including The Cochrane, CINAHL plus, AMED, and MEDLINE...
March 2017: Ghana Medical Journal
https://www.readbyqxmd.com/read/28953681/magnetic-resonance-imaging-a-possible-alternative-to-a-standing-lateral-radiograph-for-evaluating-cervical-sagittal-alignment-in-patients-with-cervical-disc-herniation
#17
COMPARATIVE STUDY
Wei Liu, Jin Fan, Jianling Bai, Pengyu Tang, Jian Chen, Yongjun Luo, Kuai Zhou, Weihua Cai
BACKGROUND AND OBJECTIVES: Convincing evidence supporting the use of magnetic resonance imaging (MRI) as an effective tool for evaluating cervical sagittal alignment is lacking. This study aims to analyze the differences and correlations between cervical sagittal parameters on x-ray and MRI in patients with cervical disc herniation and to determine whether MRI could substitute for cervical x-ray for measurement of cervical sagittal parameters. METHODS: One hundred forty-three adults with cervical disc herniation were recruited...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28947736/genetic-and-epigenetic-features-direct-differential-efficiency-of-xist-mediated-silencing-at-x-chromosomal-and-autosomal-locations
#18
Agnese Loda, Johannes H Brandsma, Ivaylo Vassilev, Nicolas Servant, Friedemann Loos, Azadeh Amirnasr, Erik Splinter, Emmanuel Barillot, Raymond A Poot, Edith Heard, Joost Gribnau
Xist is indispensable for X chromosome inactivation. However, how Xist RNA directs chromosome-wide silencing and why some regions are more efficiently silenced than others remains unknown. Here, we explore the function of Xist by inducing ectopic Xist expression from multiple different X-linked and autosomal loci in mouse aneuploid and female diploid embryonic stem cells in which Xist-mediated silencing does not lead to lethal functional monosomy. We show that ectopic Xist expression faithfully recapitulates endogenous X chromosome inactivation from any location on the X chromosome, whereas long-range silencing of autosomal genes is less efficient...
September 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28947663/progress-in-understanding-the-molecular-mechanism-of-xist-rna-function-through-genetics
#19
REVIEW
Asun Monfort, Anton Wutz
The Xist gene produces a long noncoding RNA that initiates chromosome-wide gene repression on the inactive X chromosome in female mammals. Recent progress has advanced the understanding of Xist function at the molecular level. This review provides an overview of insights from genetic approaches and puts the new data in the context of an emerging mechanistic model as well as the existing literature. Some consideration is given on how independent biochemical studies on X inactivation help to advance on the wider question of chromatin regulation in the mammalian dosage compensation system...
November 5, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28942498/discovering-protein-ligand-chalcogen-bonding-in-the-protein-data-bank-using-endocyclic-sulfur-containing-heterocycles-as-ligand-search-subsets
#20
Miguel O Mitchell
The chalcogen bond, the noncovalent, electrostatic attraction between covalently bonded atoms in group 16 and Lewis bases, is present in protein-ligand interactions based on X-ray structures deposited in the Protein Data Bank (PDB). Discovering protein-ligand chalcogen bonding in the PDB employed a strategy that focused on searching the database for protein complexes of five-membered, heterocyclic ligands containing endocyclic sulfur with endo electron-withdrawing groups (isothiazoles; thiazoles; 1,2,3-, 1,2...
September 24, 2017: Journal of Molecular Modeling
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