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https://www.readbyqxmd.com/read/29161206/a-hypersensitivity-like-response-to-meloidogyne-graminicola-in-rice-oryza-sativa-l
#1
Ngan Thi Phan, Dirk De Waele, Mathias Lorieux, Lizhong Xiong, Stephane Bellafiore
Meloidogyne graminicola (M. graminicola) is a major plant-parasitic nematode affecting rice cultivation in Asia. Resistance to this nematode was found in the African rice genotypes Oryza glaberrima and O. longistaminata, however, due to interspecific hybrid sterility, the introgression of resistance genes in the widely consumed O. sativa varieties remains challenging. Recently, resistance was found in O. sativa and here we report for the first time the histological and genetic characterization of the resistance to M...
November 21, 2017: Phytopathology
https://www.readbyqxmd.com/read/29160425/local-and-systemic-effects-of-fibrin-and-cyanoacrylate-adhesives-on-lung-lesions-in-rabbits
#2
Marcus V H Carvalho, Evaldo Marchi, Andre J Fruchi, Bruno V B Dias, Clovis L Pinto, Geovane R Dos Santos, Milena M P Acencio
OBJECTIVES: Tissue adhesives can be used to prevent pulmonary air leaks, which frequently occur after lung interventions. The objective of this study is to evaluate local and systemic effects of fibrin and cyanoacrylate tissue adhesives on lung lesions in rabbits. METHODS: Eighteen rabbits were submitted to videothoracoscopy + lung incision alone (control) or videothoracoscopy + lung incision + local application of fibrin or cyanoacrylate adhesive. Blood samples were collected and assessed for leukocyte, neutrophil and lymphocyte counts and interleukin-8 levels preoperatively and at 48 hours and 28 days post-operatively...
October 2017: Clinics
https://www.readbyqxmd.com/read/29160138/a-case-of-dedifferentiated-chondrosarcoma-arising-in-the-cricoid-cartilage-that-mimicked-an-aneurysmal-bone-cyst
#3
Lixiao Chen, Ziwei Yu, Rui Jiang, Pin Dong, Bin Shen, Yu Li
Dedifferentiated chondrosarcoma of the larynx is a rare and highly malignant tumor. We present the report of a 59-year-old man with dedifferentiated laryngeal chondrosarcoma, which was difficult to diagnose even under microscopic examination. The original diagnosis was an aneurysmal bone cyst, and the final diagnosis was established only after careful consideration of the imaging, surgical, and microscopic findings. In clinical practice, there are many similarities between dedifferentiated chondrosarcoma and aneurysmal bone cysts...
November 21, 2017: Postgraduate Medicine
https://www.readbyqxmd.com/read/29159783/in-vitro-study-of-the-effects-of-denosumab-on-giant-cell-tumor-of-bone-comparison-with-zoledronic-acid
#4
Isao Shibuya, Masamichi Takami, Arei Miyamoto, Akiko Karakawa, Akira Dezawa, Shigeru Nakamura, Ryutaro Kamijo
Giant cell tumor of bone (GCTB) is a locally aggressive primary bone tumor that contains numerous osteoclasts formed from marrow-derived precursors through receptor activator of nuclear factor κ-B ligand (RANKL), an osteoclast differentiation factor expressed in neoplastic cells of GCTB. Denosumab, a fully human monoclonal antibody targeting RANKL, has recently been used for the treatment of GCTB, and superior treatment effects have been reported. The aim of this work was to elucidate the mechanism of action of denosumab, and the differences between denosumab and zoledronic acid at the level of GCTB cells...
November 20, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29159203/varicella-zoster-virus-infected-cerebrovascular-cells-produce-a-proinflammatory-environment
#5
Dallas Jones, C Preston Neff, Brent E Palmer, Kurt Stenmark, Maria A Nagel
Objective: To test whether varicella zoster virus (VZV) infection of human brain vascular cells and of lung fibroblasts directly increases proinflammatory cytokine levels, consistent with VZV as a causative agent in intracerebral VZV vasculopathy and giant-cell arteritis (GCA). Methods: Conditioned supernatant from mock- and VZV-infected human brain vascular adventitial fibroblasts (HBVAFs), human perineurial cells (HPNCs), human brain vascular smooth muscle cells (HBVSMCs), and human fetal lung fibroblasts (HFLs) were collected at 72 hours postinfection and analyzed for levels of 30 proinflammatory cytokines using the Meso Scale Discovery Multiplex ELISA platform...
September 2017: Neurology® Neuroimmunology & Neuroinflammation
https://www.readbyqxmd.com/read/29158998/giant-cell-tumor-of-the-patellar-tendon-sheath-a-rare-case-of-anterior-knee-pain
#6
Ömer Faruk Kılıçaslan, Yusuf Alper Katı, Ozkan Kose, Bekir Erol, Arsenal Sezgin Alikanoglu
Giant cell tumor of the tendon sheath (GCTTS) is a benign, proliferative lesion of the synovium of the joint, the bursa, and the tendon sheath. We report a case of intra-articular, localized GCTTS arising from the patellar tendon, which is a rare cause of anterior knee pain. The diagnosis may be delayed due to non-specific symptoms and normal plain radiographic findings. Magnetic resonance imaging (MRI) is diagnostic to detect the lesion, but several other clinical entities and lesions should be evaluated in the differential diagnosis...
September 16, 2017: Curēus
https://www.readbyqxmd.com/read/29156848/nomograms-for-prognostic-factors-of-spinal-giant-cell-tumor-combining-traditional-clinical-characteristics-with-inflammatory-biomarkers-after-gross-total-resection
#7
Jialin Li, Bo Li, Pingting Zhou, Jian Zhao, Zhipeng Wu, Xinghai Yang, Haifeng Wei, Tianrui Chen, Jianru Xiao
Giant cell tumor (GCT) of bone is a common primary bone tumor, which exhibits local aggressiveness and recurrent potential, especially for the spinal lesion. Increasing evidence indicates that inflammation plays a vital role in tumorigenesis and progression. The prognostic value of inflammatory biomarkers in GCT has not been established. A retrospective analysis was conducted in patients with spinal GCT in Changzheng Hospital Orthopedic Oncological Center (CHOOC) between January 2005 and October 2015 and 129 patients were identified eligible...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156776/uchl1-expression-and-localization-on-testicular-development-and-spermatogenesis-of-chinese-giant-salamanders
#8
Yuanxian Wang, Liqing Wang, Huihui Gao, Yao Gao, Changming Yang, Hong Ji, Wuzi Dong
Ubiquitin carboxyl-terminal hydrolase L1 (UCHL1), which is extensively expressed in vertebrates, is a deubiquitinating enzymes that inhibits the degradation of proteins by reversing ubiquitination modification. Herein, a 1087-bp sequence encoding UCHL1 was identified from the Chinese giant salamander (CGS; Andrias davidianus). The coding sequences (CDS) of UCHL1 encoded a putative poly peptide of 222 amino acids. The CGS UCHL1 isoforms were more related to their human and mouse counterparts. The phylogenic tree of vertebrate UCHL1 indicated that CGS UCHL1 has the closest relationship with human UCHL1 (up to 73...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156702/post-surgery-fluids-promote-transition-of-cancer-stem-cell-to-endothelial-and-akt-mtor-activity-contributing-to-relapse-of-giant-cell-tumors-of-bone
#9
Flavio Fazioli, Gianluca Colella, Roberta Miceli, Mariano Giuseppe Di Salvatore, Michele Gallo, Serena Boccella, Annarosaria De Chiara, Carlo Ruosi, Filomena de Nigris
Giant cell tumors of bone (GCTB) are rare sarcomas with a high rate of unpredictable local relapse. Studies suggest that surgical methods affect recurrence, supporting the idea that local disease develops from re-growth of residual cancer cells. To identify early prognostic markers of individual risk of recurrence, we evaluated the effect of post-surgery fluids from a cohort of GCTB patients on growth of primary and established sarcoma cell lines, and mice xenograph. Post-surgery fluids increased cell growth and enhanced expression of CD44(++), the principal receptor for the extracellular matrix component hyaluronan and the mesenchymal stem marker CD117(+)...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156538/combined-effects-of-simulated-microgravity-and-radiation-exposure-on-osteoclast-cell-fusion
#10
Srinivasan Shanmugarajan, Ye Zhang, Maria Moreno-Villanueva, Ryan Clanton, Larry H Rohde, Govindarajan T Ramesh, Jean D Sibonga, Honglu Wu
The loss of bone mass and alteration in bone physiology during space flight are one of the major health risks for astronauts. Although the lack of weight bearing in microgravity is considered a risk factor for bone loss and possible osteoporosis, organisms living in space are also exposed to cosmic radiation and other environmental stress factors. As such, it is still unclear as to whether and by how much radiation exposure contributes to bone loss during space travel, and whether the effects of microgravity and radiation exposure are additive or synergistic...
November 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29155113/small-cell-glioblastoma-of-the-sella-turcica-region-a-case-report-and-review-of-the-literature
#11
Shuanglin Deng, Linlin Liu, Danhua Wang, Dan Tong, Gang Zhao
BACKGROUND: Glioblastomas in the sellar region are very rare; in most cases, the tumor originates from the optic nerve/optic chiasm. Only 4 cases of sellar glioblastoma with a non-optic origin have been reported. We present such a case with detailed clinical, imaging and histopathological information. A review of similar published cases is also presented. CASE PRESENTATION: A 42-year-old woman presented with endocrinological abnormalities including, amenorrhea and lactation, symptoms of diabetes insipidus and signs of elevated ICP...
November 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29153869/-benign-tumors-of-the-soft-tissue-of-the-hand-about-70%C3%A2-cases
#12
M Khezami, H Bellaaj, A Abdennadher, K Amri, M Hamdi, L Nouisri
Through a retrospective study of 70 cases of benign soft tissue tumors in the orthopedic traumatology department of the military hospital of Tunis over a 12-year period from January 2005 to December 2016, we have compared our findings to those of the literature in an attempt to identify epidemiological notions relevant to daily medical practice as epidemiological data on benign tumors of the soft parts of the hand remain few and sometimes discordant. The authors report a series of 70 active, young adults, mostly female, with a swelling at the level of the hand as the most common reason for consultation...
November 16, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/29150493/very-late-pathological-responses-to-cobalt-chromium-everolimus-eluting-stainless-steel-sirolimus-eluting-and-cobalt-chromium-bare-metal-stents-in-humans
#13
Hiroyoshi Mori, Dheeraj R Atmakuri, Sho Torii, Ryan Braumann, Samantha Smith, Hiroyuki Jinnouchi, Anuj Gupta, Emanuel Harari, Melsi Shkullaku, Robert Kutys, David Fowler, Maria Romero, Renu Virmani, Aloke V Finn
BACKGROUND: The "very late" clinical outcomes for durable polymer drug-eluting stents and bare metal stents (BMSs) have been shown to be dissimilar in clinical studies. Conceptually, the long-term vascular compatibility of BMSs is still regarded to be superior to drug-eluting stents; however, no pathologic study to date has specifically addressed this issue. We evaluated the very late (≥1 year) pathologic responses to durable polymer drug-eluting stents (cobalt-chromium [CoCr] everolimus-eluting stents [EESs] and stainless steel sirolimus-eluting stents [SS-SESs]) versus BMSs (CoCr-BMSs)...
November 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29146018/biological-treatments-in-giant-cell-arteritis-takayasu-arteritis
#14
Maxime Samson, Georgina Espígol-Frigolé, Nekane Terrades-García, Sergio Prieto-González, Marc Corbera-Bellalta, Roser Alba-Rovira, José Hernández-Rodríguez, Sylvain Audia, Bernard Bonnotte, Maria C Cid
Giant cell arteritis (GCA) and Takayasu arteritis (TAK) are the two main large vessel vasculitides. They share some similarities regarding their clinical, radiological and histological presentations but some pathogenic processes in GCA and TAK are activated differently, thus explaining their different sensitivity to biological therapies. The treatment of GCA and TAK essentially relies on glucocorticoids. However, thanks to major progress in our understanding of their pathogenesis, the role of biological therapies in the treatment of these two vasculitides is expanding, especially in relapsing or refractory diseases...
November 13, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29145713/positron-emission-tomography-as-an-imaging-biomarker-in-a-prospective-longitudinal-cohort-of-patients-with-large-vessel-vasculitis
#15
Peter C Grayson, Sara Alehashemi, Armin A Bagheri, Ali Cahid Civelek, Thomas R Cupps, Mariana J Kaplan, Ashkan A Malayeri, Peter A Merkel, Elaine Novakovich, David A Bluemke, Mark A Ahlman
OBJECTIVES: To assess the clinical value of (18) F-flurodeoxyglucose (FDG) positron emission tomography (PET) in a prospective cohort of patients with large-vessel vasculitis (LVV) and disease comparators. METHODS: Patients with Takayasu's arteritis (TAK) and giant cell arteritis (GCA) were studied, along with a comparator group consisting of patients with hyperlipidemia, diseases that mimic LVV, and healthy controls. Participants underwent clinical evaluation and FDG-PET imaging, and patients with LVV underwent serial imaging at six-month intervals...
November 16, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/29145680/-a-rare-differential-diagnosis-of-chronic-cough
#16
Michael Dicker, Tino Schneider, Johannes von Kempis, Markus Diethelm
History and admission findings We report on a 62-year-old male patient with dry cough for 3 months, constitutional symptoms and elevated inflammatory markers. Investigations Despite extensive diagnostics no infectious, malignant or rheumatologic disease could be found. Bronchoscopy with bronchoalveolar lavage showed lymphocytosis. 18-FDG-PET/CT demonstrated increased metabolic activity of the aorta and its primary branches. Diagnosis, treatment and course We diagnosed large vessel vasculitis consistent to a subtype of giant cell arteritis (GCA) without cranial manifestation...
November 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/29145324/a-rare-case-of-merkel-cell-carcinoma-presenting-as-a-giant-intra-thoracic-mass-a-case-report-and-review-of-the-literature
#17
Feng-Wei Kong, Miao Zhang, Heng Wang, Cun-Tao Lu, Wen-Bin Wu, Yuan-Yuan Liu
RATIONALE: Merkel cell carcinoma (MCC) is an aggressive neuroendocrine-derived cutaneous cancer. Ectopic or single metastatic MCC located in thorax is extremely rare; meanwhile, its definite management has not been elucidated yet. PATIENT CONCERNS: A 64-year-old female patient with a giant mass located in her left thorax was presented for stuffy pain of left chest for 6 months and fever for half a month. She underwent radical resection of vulvar MCC 10 years ago...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144982/bone-mesenchymal-stem-cell-secretion-of-srankl-opg-m-csf-in-response-to-macrophage-mediated-inflammatory-response-influences-osteogenesis-on-nanostructured-ti-surfaces
#18
Qian-Li Ma, Liang Fang, Nan Jiang, Liang Zhang, Ying Wang, Yu-Mei Zhang, Li-Hua Chen
Although it has been well established that osteogenic differentiation of bone mesenchymal stem cells (bMSCs) as well as osteoclastic differentiation of macrophages can be manipulated by the nanostructure of biomaterial surfaces, the interactions among the effects of the surface on immune cells and bMSCs remained unknown. Therefore, in this study, the osteogenic behaviors and secretion of osteoclastogenesis-related cytokines of human bMSCs on TiO2 nanotubular (NT) surfaces in conditioned medium (CM) generated by macrophages cultured on the respective NT surfaces (NT-CM) were analyzed...
November 4, 2017: Biomaterials
https://www.readbyqxmd.com/read/29142790/an-active-giant-cell-tumor-of-the-patella-a-case-report
#19
Svetoslav A Slavchev, Georgi P Georgiev, Kircho Patrikov
Primary neoplasms of the patella account for less than 1% of all primary bone tumors of the lower extremity, the most frequent of them being the giant cell tumor of bone, the chondroblastoma, and the aneurysmal bone cyst. Herein, we report the case of a 29-year-old woman with an active giant cell tumor of the patella (GCTP) with its clinical and radiological features and a brief review of the literature.
September 2, 2017: Curēus
https://www.readbyqxmd.com/read/29140815/neuroimaging-diagnostic-and-monitoring-approaches-in-ophthalmology
#20
Bart K Chwalisz, Marc A Bouffard, Sashank Prasad, Dean M Cestari
PURPOSE OF REVIEW: We review new applications of optical coherence tomography (OCT) technology in neuro-ophthalmology. We also describe new technologies for visualizing the extracranial vessels in the diagnosis of giant cell arteritis (GCA). RECENT FINDINGS: Newer OCT modalities are expanding the evaluation of the optic disc, and are being applied to a number of neurologic conditions such as demyelinating and neurodegenerative disease. Swept-source OCT and enhanced-depth imaging OCT are refining the fine-grained analysis of the optic nerve head in the diagnosis of papilledema and optic nerve drusen...
November 14, 2017: Current Opinion in Neurology
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