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https://www.readbyqxmd.com/read/28748225/abnormal-molecular-response-to-takayasu-arteritis-causing-extensive-large-vessel-calcification
#1
Brandon T Garland, Manfred Boehm, Peter C Grayson, Cynthia St Hilaire, Alessandra Brofferio, Benjamin W Starnes
Takayasu arteritis is a large-vessel vasculitis that often results in pulselessness due to fibrotic stenoses. Whereas minor calcification is sometimes seen with Takayasu arteritis, it rarely causes stenosis. Extensive calcification resulting in malperfusion is exceedingly rare and has been attributed to disorders in calcium trafficking in a chronic inflammatory state. We report an unusual case of rapidly progressive and extensive aortic calcification in the setting of Takayasu arteritis.
December 2016: J Vasc Surg Cases Innov Tech
https://www.readbyqxmd.com/read/28747652/non-aqueous-selective-synthesis-of-orthosilicic-acid-and-its-oligomers
#2
Masayasu Igarashi, Tomohiro Matsumoto, Fujio Yagihashi, Hiroshi Yamashita, Takashi Ohhara, Takayasu Hanashima, Akiko Nakao, Taketo Moyoshi, Kazuhiko Sato, Shigeru Shimada
Orthosilicic acid (Si(OH)4) and its small condensation compounds are among the most important silicon compounds but have never been isolated, due to their instability. These compounds would be highly useful building blocks for advanced materials if they became available at high purity. Here we show a simple procedure to selectively synthesize orthosilicic acid and its dimer, cyclic trimer and tetramer in organic solvents. Isolation of orthosilicic acid, the dimer and the cyclic tetramer as hydrogen-bonded crystals with tetrabutylammonium halides and the cyclic trimer as solvent-containing crystals is also described...
July 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28747252/analysis-of-the-tractive-force-pattern-on-a-knot-by-force-measurement-during-laparoscopic-knot-tying
#3
Kenta Takayasu, Kenji Yoshida, Hidefumi Kinoshita, Syunsuke Yoshimoto, Osamu Oshiro, Tadashi Matsuda
BACKGROUND: Quantifying surgical skills assists novice surgeons when learning operative techniques. We measured the interaction force at a ligation point and clarified the features of the force pattern among surgeons with different skill levels during laparoscopic knot tying. METHODS: Forty-four surgeons were divided into three groups based on experience: 13 novice (0-5 years), 16 intermediate (6-15 years), and 15 expert (16-30 years). To assess the tractive force direction and volume during knot tying, we used a sensor that measures six force-torque values (x-axis: Fx, y-axis: Fy, z-axis: Fz, and xy-axis: Fxy) attached to a slit Penrose drain...
July 19, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28743241/complete-ophthalmoplegia-complete-ptosis-and-dilated-pupil-due-to-internal-carotid-artery-dissection-as-the-first-manifestation-of-takayasu-arteritis
#4
H M M T B Herath, S P Pahalagamage, D Withana, Sunethra Senanayake
BACKGROUND: Takayasu arteritis is a rare, chronic large vessel vasculitis involving the aorta and its primary branches. As the disease progresses, the active inflammation of large vessels leads to dilation, narrowing and occlusion of the arteries. Arterial dissection is due to separation of the layers of the arterial wall resulting in a false lumen, where blood seeps into the vessel wall. Neurological sequelae of intracranial arterial dissection results from cerebral ischemia due to thromboembolism and hypo perfusion...
July 25, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28740840/bicytopenia-and-leukoerythroblastosis-a-rare-initial-presentation-of-signet-ring-cell-gastric-adenocarcinoma
#5
REVIEW
Vilma Takayasu, Edna Harumi Goto, Mayra Zanon Casagrande, Paulo Guilherme de Arruda Miranda, Gabriela Bezerra de Freitas Diniz, Micaela Frasson Monteiro, Aloisio Felipe-Silva
Gastric adenocarcinoma is a common neoplasia and is responsible for up to 30% of the overall deaths due to cancer. Advanced disease is mostly characterized by peritoneum, liver, and lung involvement. The spread of the disease to the bone is rare, and bone marrow dissemination is even rarer. In this setting, leukoerythroblastosis may be the initial manifestation of the disease. The authors report the case of a 64-year-old Caucasian man who sought medical care complaining of back pain, weakness, and weight loss...
April 2017: Autopsy & case reports
https://www.readbyqxmd.com/read/28740574/phase-i-ii-study-of-erlotinib-carboplatin-pemetrexed-and-bevacizumab-in-chemotherapy-na%C3%A3-ve-patients-with-advanced-non-squamous-non-small-cell-lung-cancer-harboring-epidermal-growth-factor-receptor-mutation
#6
Takayasu Kurata, Aya Nakaya, Takashi Yokoi, Maiko Niki, Kayoko Kibata, Yuki Takeyasu, Yoshitaro Torii, Yuichi Katashiba, Makoto Ogata, Takayuki Miyara, Shosaku Nomura
BACKGROUND: Epidermal growth factor receptor tyrosine kinase inhibitors significantly prolong the progression-free survival of patients with non-squamous non-small cell lung cancer (NSCLC). However, most patients develop tumor regrowth and their prognosis remains poor. A new treatment strategy for NSCLC harboring EGFR mutation is therefore necessary. METHODS: In phase I, eligible patients were administered oral erlotinib daily and intravenous pemetrexed, carboplatin, and bevacizumab every 3 weeks for four cycles with maintenance of pemetrexed and bevacizumab until progressive disease was observed...
May 2017: Genes & Cancer
https://www.readbyqxmd.com/read/28738750/pregnancy-outcome-in-patients-with-takayasu-s-arteritis-cohort-study-and-review-of-the-literature
#7
Michal Kirshenbaum, Michal J Simchen, Ramat Gan
OBJECTIVE: To investigate the clinical features of pregnancy in women with Takayasu's arteritis managed in a tertiary medical center and review the literature in order to establish the course and recommended follow up and treatment for these pregnancies. MATERIALS AND METHODS: Retrospective analysis of 20 pregnancies in 6 women with Takayasu's arteritis. Patients were recruited from the high risk pregnancy clinics at Sheba Medical Center, where follow up included strict control of blood pressure and treatment of obstetric and disease related complications...
July 24, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28736969/correlating-mri-with-clinical-evaluation-in-the-assessment-of-disease-activity-of-takayasu-s-arteritis
#8
Reetu A John, Shyamkumar N Keshava, Debashish Danda
OBJECTIVES: To correlate magnetic resonance imaging (MRI) assessment of disease activity in patients with Takayasu's arteritis with the Indian Takayasu's activity score (ITAS). DESIGN, MATERIALS AND METHODS: We prospectively assessed 20 patients with Takayasu's arteritis from November 2010 to September 2011. RESULTS: We found a statistically significant association between MRI assessment of disease activity and ITAS with a P-value of 0.01...
July 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28730646/prospective-observational-study-of-carbon-ion-radiotherapy-for-non-squamous-cell-carcinoma-of-the-head-and-neck
#9
Katsuyuki Shirai, Jun-Ichi Saitoh, Atsushi Musha, Takanori Abe, Daijiro Kobayashi, Takeo Takahashi, Tomoaki Tamaki, Hidemasa Kawamura, Yukihiro Takayasu, Masato Shino, Minoru Toyoda, Katsumasa Takahashi, Junko Hirato, Satoshi Yokoo, Kazuaki Chikamatsu, Tatsuya Ohno, Takashi Nakano
To evaluate the efficacy and safety of carbon-ion radiotherapy for non-squamous cell carcinoma of the head and neck. Thirty-five patients were enrolled in this prospective study. The primary endpoint was the 3-year local control rate, while secondary endpoints included the 3-year overall survival rate and adverse events. Acute and late adverse events were evaluated according to the Common Terminology Criteria for Adverse Events, version 4.0. The median follow-up time for all patients was 39 months. Thirty-two and 3 patients received 64...
July 21, 2017: Cancer Science
https://www.readbyqxmd.com/read/28723782/endovascular-balloon-angioplasty-versus-stenting-in-patients-with-takayasu-arteritis-a-meta-analysis
#10
Han Saem Jeong, Jae Hyun Jung, Gwan Gyu Song, Sung Jae Choi, Soon Jun Hong
BACKGROUND: Symptomatic or significant vascular lesions of Takayasu arteritis (TA) need interventions. Although percutaneous transluminal angioplasty with balloon is a less invasive and safe method, stent implantation in TA can be an alternative option. However, superiority between balloon angioplasty and stenting in TA is not conclusive. METHODS: A meta-analysis comparing balloon angioplasty and stenting outcomes was performed using the MEDLINE and EMBASE databases...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28722366/-large-vessel-vasculitis-pathogenesis-diagnostic-and-medical-management
#11
Alireza Sadrkhah, Jörg D Seebach, Yannick Muller
Large vessels vasculitis includes two diseases : 1) giant cell arteritis, formerly known as Horton's arteritis and 2) Takayasu arteritis. In this article, we will describe and compare the epidemiology, pathogenesis, diagnostic criteria and medical management of both vasculitis. T helper (Th) 1 and Th17 responses, genetic links and the role of viral (varicella zoster) and bacterial infection (Mycoplasma pneumoniae or Chlamydia pneumoniae) will be discussed. Classification criteria, inflammation biomarkers and progress in imaging tools will also be described...
April 5, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28720300/epidemiological-study-of-gastric-helicobacter-spp-in-dogs-with-gastrointestinal-disease-in-japan-and-diversity-of-helicobacter-heilmannii-sensu-stricto
#12
Sanae Kubota-Aizawa, Koichi Ohno, Kenjiro Fukushima, Hideyuki Kanemoto, Ko Nakashima, Kazuyuki Uchida, James K Chambers, Yuko Goto-Koshino, Takayasu Watanabe, Tsutomu Sekizaki, Hitomi Mimuro, Hajime Tsujimoto
Epidemiological and pathological studies of Helicobacter spp. in canine stomachs in Japan were performed to investigate strain specific pathogenicity. Gastric biopsies from 144 dogs with gastrointestinal diseases were evaluated for the presence of Helicobacter spp. using genus and species specific PCRs for Helicobacter felis, Helicobacter bizzozeronii, Helicobacter heilmannii sensu stricto (s.s.) and Helicobacter pylori. PCR indicated that 50/144 (34.7%) dogs were infected with Helicobacter spp. Of the genus positive samples, 21/50 could not be amplified by any of the species specific PCRs...
July 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28718336/coexistence-of-takayasu-s-arteritis-and-ankylosing-spondylitis-may-not-be-accidental-is-there-a-need-for-a-new-subgroup-in-the-spondyloarthritis-family
#13
Pawel Mielnik, Anja Myhre Hjelle, Jan Leidulv Nordeide
Aortitis of ascending aorta is a recognized complication of ankylosing spondylitis (AS). There are a few published cases of diffuse aortitis and aorta collaterals inflammation that fulfill Takayasu's arteritis (TA) criteria coexisting with AS. We have reviewed published cases from literature and present three new cases of such coexistence. We identified three patients who fulfilled definite AS New York criteria in our Takayasu's vasculitis cohort of eight patients. One of this patients had been diagnosed with Crohn's disease before AS and TA diagnosis...
July 18, 2017: Modern Rheumatology
https://www.readbyqxmd.com/read/28713428/clinically-apparent-arterial-thrombosis-in-persons-with-systemic-vasculitis
#14
Alexander Tsoukas, Sasha Bernatsky, Lawrence Joseph, David L Buckeridge, Patrick Bélisle, Christian A Pineau
OBJECTIVE: To estimate the incidence rate of clinically apparent arterial thrombotic events and associated comorbidities in patients with primary systemic vasculitis. METHODS: Using large cohort administrative data from Quebec, Canada, we identified patients with vasculitis, including polyarteritis nodosa (PAN) and granulomatosis with polyangiitis (GPA). Incident acute myocardial infarctions (AMIs) and cerebrovascular accidents (CVAs) after the diagnosis of vasculitis were ascertained in the PAN and GPA group via billing and hospitalization data...
2017: International Journal of Rheumatology
https://www.readbyqxmd.com/read/28711530/pitfalls-of-a-neuroendoscopic-biopsy-of-intraventricular-germ-cell-tumors
#15
Yasuyuki Kinoshita, Fumiyuki Yamasaki, Atsushi Tominaga, Taiichi Saito, Tetsuhiko Sakoguchi, Takeshi Takayasu, Satoshi Usui, Kazuhiko Sugiyama, Kazunori Arita, Kaoru Kurisu
OBJECTIVE: A neuroendoscopic biopsy has become common for the diagnosis of ventricular tumors. However, its utility in patients with germ cell tumors (GCTs) has not been well discussed. We examined the usefulness and pitfalls of neuroendoscopic biopsies of intraventricular GCTs at a single institution. METHODS: We retrospectively studied 21 consecutive patients diagnosed with GCT by a neuroendoscopic biopsy of the ventricular region via the lateral ventricle. We examined the localization of tumors, histological diagnoses using biopsies, surgical complications, and consistency of the diagnosis at the latest follow-up...
July 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28709561/factors-associated-with-need-for-revascularisation-in-non-coronary-arterial-occlusive-lesions-secondary-to-takayasu-s-arteritis
#16
C A Hinojosa, J E Anaya-Ayala, Z Gomez-Arcive, H Laparra-Escareno, A Torres-Machorro, R Lizola
OBJECTIVE/BACKGROUND: Takayasu's arteritis (TA) is rare inflammatory large vessel form of vasculitis. The objective of this study was to evaluate experience in the management of TA patients and to identify the influence of inflammatory markers and clinical variables associated with disease progression, worsening ischaemic symptoms, and the need for interventions. METHODS: Demographics, and laboratory and clinical variables in patients that required revascularisation procedures were compared with those who had adequate symptomatic control with medical management...
July 11, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28705339/-surgical-and-endoluminal-management-of-the-inflammatory-aortitis-a-tunisian-center-experience
#17
H Ben Jmaà, R Karray, H Jmal, T Cherif, F Dhouib, I Souissi, A Karoui, Z Bahloul, S Masmoudi, N Elleuch, I Frikha
Non-infectious aortitis is usually due to giant-cell arteritis, Takayasu disease or Behçet disease. The main aortic lesions are stenoses, occlusions and aneurysms in the Takayasu disease and aneurysms in the Behçet disease and giant-cell arteritis. Treatment is based on corticosteroid therapy and surgery. Endoluminal management is now the rule. We report a retrospective descriptive study of 10 patients who underwent surgical or endoluminal management of inflammatory lesions of the aorta between January 2000 and December 2015...
July 2017: J Med Vasc
https://www.readbyqxmd.com/read/28701681/inflammation-is-associated-with-platelet-coagulation-function-rather-than-enzymatic-coagulation-function-in-patients-with-takayasu-arteritis
#18
Xiao Wang, Aimin Dang, Naqiang Lv, Nan Cheng, Xuesen Cheng
The integral changes of coagulation and fibrinolysis, and their relationships with inflammation in patients with Takayasu arteritis (TA) remain undetermined. The purpose of this study was to analyze the changes of coagulation and fibrinolysis process in patients with TA by thrombelastography (TEG).A total of 127 patients with TA and 55 healthy controls were enrolled. Patients with TA were grouped according to disease activity. The routine hematological parameters, traditional coagulation assays, and TEG parameters were summarized retrospectively...
July 13, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28701469/long-term-outcomes-and-prognostic-factors-of-complications-in-takayasu-s-arteritis-a-multicenter-study-of-318-patients
#19
Cloé Comarmond, Lucie Biard, Marc Lambert, Arsène Mekinian, Yasmina Ferfar, Jean-Emmanuel Kahn, Ygal Benhamou, Laurent Chiche, Fabien Koskas, Philippe Cluzel, Eric Hachulla, Emmanuel Messas, Matthieu Resche-Rigon, Patrice Cacoub, Tristan Mirault, David Saadoun
Background -Due to the wide variation in the course of Takayasu arteritis (TA), predicting outcome is challenging. We assess long term outcome and prognosis factors for vascular complications in patients with TA. Methods -Retrospective multicenter study of characteristics and outcomes of 318 TA patients fulfilling American College of Rheumatology and/or Ishikawa criteria were analyzed. Factors associated with event-free survival (EFS), relapse-free survival (RFS) and incidences of vascular complications were assessed...
July 12, 2017: Circulation
https://www.readbyqxmd.com/read/28701065/predictors-of-biologic-discontinuation-due-to-insufficient-response-in-patients-with-rheumatoid-arthritis-who-achieved-clinical-remission-with-biologic-treatment-a-multicenter-observational-cohort-study
#20
Shuji Asai, Takayoshi Fujibayashi, Takeshi Oguchi, Masahiro Hanabayashi, Masatoshi Hayashi, Hiroyuki Matsubara, Takayasu Ito, Yuichiro Yabe, Tsuyoshi Watanabe, Yuji Hirano, Yasuhide Kanayama, Atsushi Kaneko, Takefumi Kato, Hideki Takagi, Nobunori Takahashi, Koji Funahashi, Toki Takemoto, Nobuyuki Asai, Tatsuo Watanabe, Naoki Ishiguro, Toshihisa Kojima
OBJECTIVE: This study aimed to investigate predictors of biologic discontinuation due to insufficient response as a surrogate for relapse in patients with rheumatoid arthritis (RA) who achieved clinical remission with biologic treatment. METHODS: This study was performed based on data from a multicenter registry, and included 404 patients who achieved clinical remission within the first year of treatment with their first biologic. Cumulative retention rate of the first biologic was estimated using Kaplan-Meier curves, and the impact of patient characteristics on biologic discontinuation was assessed with Cox proportional hazards models...
July 13, 2017: Modern Rheumatology
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