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https://www.readbyqxmd.com/read/29156018/risk-factors-of-myasthenic-crisis-after-thymectomy-for-thymoma-patients-with-myasthenia-gravis
#1
Liang Xue, Lin Wang, Jihong Dong, Yunfeng Yuan, Hong Fan, Yi Zhang, Qun Wang, Jianyong Ding
OBJECTIVES: Total thymectomy should be performed on thymoma patients with myasthenia gravis. The aim of the present study was to investigate the risk factors of postoperative myasthenic crisis (POMC) occurrence in these patients. METHODS: The clinical records of 127 thymoma patients with myasthenia gravis (68 men, 59 women; median age, 50 years) who underwent total thymectomy at our institution from 2005 to 2014 were retrospectively reviewed. The following factors were analysed in relation to POMC: gender, age, duration of symptoms, bulbar symptoms, smoking history, history of myasthenic crisis, comorbidities, perioperative pyridostigmine and prednisolone therapy, spirometric and blood gas parameters, Osserman stage, operation approach, major complications, World Health Organization (WHO) histologic classification, Masaoka stage and use of immunoglobulins or plasmapheresis...
October 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29152681/trichothecenes-immunomodulatory-effects-mechanisms-and-anti-cancer-potential
#2
REVIEW
Qinghua Wu, Xu Wang, Eugenie Nepovimova, Anca Miron, Qianying Liu, Yun Wang, Dongxiao Su, Hualin Yang, Li Li, Kamil Kuca
Paradoxically, trichothecenes have both immunosuppressive and immunostimulatory effects. The underlying mechanisms have not been fully explored. Early studies show that dose, exposure timing, and the time at which immune function is assessed influence whether trichothecenes act in an immunosuppressive or immunostimulatory fashion. Recent studies suggest that the immunomodulatory function of trichothecenes is also actively shaped by competing cell-survival and death-signaling pathways. Autophagy may also promote trichothecene immunosuppression, although the mechanism may be complicated...
November 20, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/29147451/metastatic-malignant-thymoma-to-the-abdomen-a-seer-database-review-and-assessment-of-treatment-strategies
#3
J Matthew Helm, Dan Lavy, Jazmine Figueroa-Bodine, Saju Joseph
Background: Thymoma is a neoplasm occurring in 0.15 of 100,000 persons/year. Abdominal metastases are rare. We report the incidence of malignant thymoma (MT) and suggest imaging and treatment options for cases of abdominal metastasis. Methods: A National Cancer Institute's Surveillance, Epidemiology and End Results database review was conducted to identify MT cases, followed by a literature review examining cases of metastases to the abdomen. Incidence rates were calculated, and symptoms, treatments, size and location of tumors, disease-free interval (DFI), and survival time were recorded...
October 2017: World Journal of Oncology
https://www.readbyqxmd.com/read/29146413/ct-fluoroscopy-guided-core-needle-biopsy-of-anterior-mediastinal-masses
#4
T Iguchi, T Hiraki, Y Matsui, H Fujiwara, J Sakurai, Y Masaoka, M Uka, T Tanaka, H Gobara, S Kanazawa
OBJECTIVE: To retrospectively evaluate the safety, diagnostic yield, and risk factors of diagnostic failure of computed tomography (CT) fluoroscopy-guided biopsies of anterior mediastinal masses. MATERIALS AND METHODS: Biopsy procedures and results of anterior mediastinal masses in 71 patients (32 women/39 men; mean [±standard deviation] age, 53.8±20.0years; range, 14-88years) were analyzed. Final diagnoses were based on surgical outcomes, imaging findings, or clinical follow-up findings...
November 13, 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/29128632/genome-wide-mapping-of-estrogen-receptor-%C3%AE-binding-sites-by-chip-seq-to-identify-genes-related-to-sexual-maturity-in-hens
#5
Miao Guo, Yi Li, Yuxia Chen, Xiaoli Guo, Zhenjie Yuan, Yunliang Jiang
In ovarian follicle development, estrogen acts as a regulatory molecule to mediate proliferation and differentiation of follicular cells. ERα (estrogen receptor α) exerts regulatory function classically by binding directly to the estrogen response element, recruiting co-factors and activating or repressing transcription in response to E2. In this study, we used ChIP-seq to map ERα-binding sites in ovaries of Hy-line Brown commercial hens at 45d, 90d and 160d. In total, 24,886, 21,680 and 23,348 binding sites were identified in the ovaries of hens at 45d, 90d and 160d, which are linked to 86, 83 and 74 genes, respectively...
November 8, 2017: Gene
https://www.readbyqxmd.com/read/29126352/fatal-myocarditis-and-rhabdomyolysis-induced-by-nivolumab-during-the-treatment-of-type-b3-thymoma
#6
Qiang Chen, Dang-Sheng Huang, Li-Wei Zhang, Yuan-Qing Li, Hong-Wei Wang, Hong-Bin Liu
Immune checkpoint inhibitors including programmed death-1 inhibitors are promising agents for many types of malignancies; however, it is still an off-label choice for type B3 thymoma. We reported for the first time a patient with type B3 thymoma developed fatal myocarditis and rhabdomyolysis after one dose of nivolumab administration. The results from myocardial and muscle biopsies revealed extensive myocyte damage, T-lymphocytic infiltration and strongly expression of PD-L1 which confirmed the nivolumab-related immune-related adverse events (irAEs)...
November 10, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/29125185/thymus-involvement-in-early-onset-myasthenia-gravis
#7
REVIEW
Mélanie A Cron, Solène Maillard, José Villegas, Frédérique Truffault, Muriel Sudres, Nadine Dragin, Sonia Berrih-Aknin, Rozen Le Panse
It has long been established that the thymus plays a central role in autoimmune myasthenia gravis (MG) because of either thymoma or thymic hyperplasia of lymphoproliferative origin. In this review, we discuss thymic changes associated with thymic hyperplasia and their implications in the development of an autoimmune response against the acetylcholine receptor (AChR).The hyperplastic MG thymus displays all the characteristics of tertiary lymphoid organs (TLOs): neoangiogenic processes with high endothelial venule and lymphatic vessel development, chemokine overexpression favoring peripheral cell recruitment, and ectopic germinal center development...
November 10, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/29125118/research-advances-of-calcium-and-integrin-binding-protein-1-in-tumors
#8
Ling Hui, Fang Wang
Calcium-and integrin-binding protein 1(CIB1),a member of calcium binding protein containing EF-hand domain,has been shown to bind a variety of signaling proteins. Interaction of CIB1 with its various binding partners provides valuable insight into potential mechanisms by which CIB1 may regulate diverse tumors characteristic biological process that range from adhesion,migration,cell survival,proliferation,and angiogenesis. CIB1 has also been implicated in both the increase and decrease of cell proliferation...
October 30, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29121777/treatment-and-prognostic-factors-of-patients-with-thymic-epithelial-tumors-at-first-recurrence-or-progression
#9
Giuseppe L Banna, Ankur Sheel, Varun Sheel, Andrea Bille, Tom Routledge, Shalini Fernando, Arjun Nair, Rohit Lal
AIM: The treatment of patients with recurrent or progressive thymic epithelial tumors remains uncertain due to limited data in this rare disease. MATERIALS & METHODS: A retrospective 10-year monoinstitutional analysis was conducted on 25 patients with first recurrence or disease progression following primary treatment. RESULTS: Twenty patients had thymoma, five thymic carcinomas. Ten patients (40%) received surgery, four (40%) following chemotherapy; 17 (68%) had chemotherapy, with a combination regimen in 16 of them (94%)...
November 10, 2017: Future Oncology
https://www.readbyqxmd.com/read/29114575/prediction-of-a-highly-deleterious-mutation-e17k-in-akt-1-gene-an-in-silico-approach
#10
Imran Khan, Irfan A Ansari
The AKT1 (v-akt murine thymoma viral oncogene homologue 1) kinase is a member of most frequently activated proliferation and survival signaling pathway in cancer. Recently, hyperactivation of AKT1, due to functional point mutation in the pleckstrin homology (PH) domain of AKT1 gene, has been found to be associated with human colorectal, breast and ovarian cancer. Thus, considering its crucial role in cellular signaling pathway, a functional analysis of missense mutations of AKT1 gene was undertaken in this study...
July 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/29114474/thymic-epithelial-tumors-and-metastasis-to-the-brain-a-case-series-and-systematic-review
#11
Helen Gharwan, Chul Kim, Anish Thomas, Arlene Berman, Sun A Kim, Nadia Biassou, Seth M Steinberg, Arun Rajan
Background: Thymic epithelial tumors (TETs) rarely metastasize to the brain. Clinico-pathologic features of TET patients with brain metastasis are not well described. Methods: TET patients referred for consultation or screening for clinical trials are included. Imaging to evaluate for brain metastases was performed when clinically indicated or if required for screening. Tumor tissue from brain metastases was obtained for analysis, when available. Clinical characteristics and survival was evaluated and a systematic review of the literature on brain metastases associated with TETs was performed...
October 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/29113235/dysregulation-of-kras-signaling-in-pancreatic-cancer-is-not-associated-with-kras-mutations-and-outcome
#12
Radmila Lemstrova, Veronika Brynychova, David J Hughes, Viktor Hlavac, Pavel Dvorak, Joanne E Doherty, Helena A Murray, Martin Crockard, Martin Oliverius, Jan Hlavsa, Eva Honsova, Jan Mazanec, Zdenek Kala, Martin Lovecek, Roman Havlik, Jiri Ehrmann, Ondrej Strouhal, Pavel Soucek, Bohuslav Melichar, Beatrice Mohelnikova-Duchonova
Pancreatic ductal adenocarcinoma (PDAC) is a tumor with a poor prognosis, and no targeted therapy is currently available. The aim of the present study was to investigate the prognostic significance of the expression of V-Ki-ras2 Κirsten rat sarcoma viral oncogene homolog (KRAS), downstream signaling pathway genes and the association with clinical characteristics in PDAC patients undergoing radical surgery. Tumors and adjacent non-neoplastic pancreatic tissues were examined in 45 patients with histologically verified PDAC...
November 2017: Oncology Letters
https://www.readbyqxmd.com/read/29106491/short-term-outcomes-of-single-versus-multi-port-video-assisted-thoracic-surgery-in-mediastinal-diseases
#13
Qiuyuan Li, Alan Sihoe, Haifeng Wang, Diego Gonzalez-Rivas, Yuming Zhu, Dong Xie, Gening Jiang
OBJECTIVES: Although there is growing interest in single-port video-assisted thoracic surgery for a number of thoracic operations, there is still not enough known about its use for mediastinal pathologies. The present study was aimed at assessing the safety and efficacy of single-port video-assisted thoracic surgery in comparison with the multi-port variants in terms of short-term perioperative outcomes. METHODS: From July 2013 to December 2015, 285 consecutive non-myasthenic adult patients undergoing single- or multi-port video-assisted thoracic surgery for mediastinal diseases including thymoma were retrospectively reviewed...
June 30, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29088744/significance-of-b10-cell-in-patients-with-thymoma-complicated-with-myasthenia-gravis
#14
Yang Lu, Fanjie Meng, Yang Yang, Lan Li, Donghao Wang, Yuantao Cui, Shangwen Dong, Wanhua Wang
A subset of regulatory B cells in humans has been identified as B10 cell which has the function of secreting interleukin-10. We evaluated the significance of B10 cell in patients with thymoma complicated with myasthenia gravis. In this study, 156 patients diagnosed with thymoma were enrolled, FCM was used to detected the percentage of Breg/CD19(+)B cells and CD19(+)B cells/PBMC, ELISA to evaluate the serum concentration of the relevant immunological markers; purified CD19(+)B cells in tissues by MACS; gene and protein expressions of CD19 and IL-10 by Real-time PCR and Western-Blot; double immunofluorescence staining to detect the distribution of CD19 and IL-10 in thymus tissues...
September 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/29087033/is-thymomectomy-sufficient-for-non-myasthenic-early-stage-thymoma-patients-a-retrospective-single-center-experience
#15
Aizemaiti Rusidanmu, Sha Huang, Xiayi Lv
BACKGROUND: Thymic complete resection is considered the standard treatment for all thymic tumors; however, the ideal resection for non-myasthenic early stage thymic tumors has not yet been determined. We conducted a retrospective study to examine this unique scenario. METHODS: We retrospectively analyzed the data of 118 early stage thymoma patients who underwent thymectomy (TM) or thymomectomy (TMM) with curative intent between January 2003 and December 2013 at our institution...
October 31, 2017: Thoracic Cancer
https://www.readbyqxmd.com/read/29078673/the-results-of-video-assisted-thoracoscopic-thymectomies-in-saint-petersburg-russia-20-year-of-experience
#16
Piotr Yablonsky, Vadim Pischik, Marina G Tovbina, Mikhail Atiukov
BACKGROUND: During the period from 1996 to 2016, we have performed 281 thymectomies in patients with various diseases of the thymus. In 179 patients, thymic pathology was associated with autoimmune myasthenia gravis (MG), and, in 108 patients, thymoma was diagnosed. METHODS: The majority of surgeries [254] were performed using video thoracoscopy, 79 of them with an additional cervical approach. The long-term results of video thoracoscopic thymectomies in myasthenic patients were followed up for 1 to 15...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29078661/definitions-and-standard-indications-of-minimally-invasive-techniques-in-thymic-surgery
#17
Marcin Zieliński
BACKGROUND: The minimally invasive thoracic procedures are those performed through the intercostal, subxiphoid, subcostal or transcervical incisions. In most of these procedures (with exception of some transcervical procedures) the video-assisted thoracic surgery (VATS) technique is used for performance of an operation under guidance of a video monitor. METHODS: According to the definition the minimally invasive procedures do not include the sternal manubriotomy (upper sternal split), transverse sternotomy and subcutaneous longitudinal sternotomy...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29078646/extended-thymectomy-by-a-cervical-incision-additional-to-bilateral-vats-approach
#18
Liang Xue, Xuguang Pang, Yongxing Zhang, Jianyong Ding
BACKGROUND: Video-assisted thoracoscopic surgery (VATS) in thymectomy has shown safe and effective with many advantages in myasthenia gravis (MG) patients with or without thymoma than transsternal approach. This video aims to show the procedure of extended thymectomy via a cervical incision additional to bilateral VATS approach in a MG patient with an early stage thymoma. METHODS: The patient was a 46-year-old male who had onset of symptoms of blurred vision, dysarthria and dysphagia for 10 months before administration...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29078632/uniportal-bilateral-video-assisted-sequential-thoracoscopic-extended-thymectomy
#19
REVIEW
Francesco Paolo Caronia, Ettore Arrigo, Sebastiano Trovato, Attilio Ignazio Lo Monte, Salvatore Cottone, Francesco Sgalambro, Mario Guglielmo, Antonio Volpicelli, Alfonso Fiorelli
Standard video-assisted thoracoscopic surgery has been reported as a minimally invasive approach alternative to sternotomy for management of myasthenia gravis (MG) associated with thymoma or thymic hyperplasia. Uniportal video-thoracoscopy is an evolution of standard multi-portal video-thoracoscopy for management of several thoracic diseases but its role for resecting mediastinal tumor remains under-evaluated. Herein, we describe our experience with bilateral uniportal thoracoscopic sequential extended thymectomy with case and video illustrations...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29078631/robotic-thymectomy
#20
REVIEW
Giuseppe Marulli, Giovanni Maria Comacchio, Federico Rea
Thymectomy is the most frequent surgical operation involving the mediastinum, both for the treatment of thymic tumors and for the multidisciplinary management of myasthenia gravis (MG). Different surgical approaches have been described, either traditional open approaches or minimally invasive ones. Robotic thymectomy represents a further step in the evolution of minimally invasive surgery. Available data show that robotic thymectomy may be considered a safe and feasible operation, with encouraging long-term results in myasthenic patients and promising results in patients with early stage thymoma, both in terms of surgical and oncological outcomes...
2017: J Vis Surg
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