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https://www.readbyqxmd.com/read/29770856/risk-factors-associated-with-intrathyroid-extension-of-thyroid-microcarcinomas
#1
Nikola Slijepcevic, Vladan Zivaljevic, Aleksandar Diklic, Milan Jovanovic, Branislav Oluic, Ivan Paunovic
PURPOSE: The aims of this study were to investigate the rate of intrathyroid extension of papillary thyroid microcarcinoma (PTMC) in patients operated for benign thyroid disease and to identify independent risk factors associated with it. METHODS: A retrospective study of 301 patients operated for benign thyroid diseases (hyperthyroid diseases, multinodular goitre, Hashimoto thyroiditis and benign thyroid tumours) was performed at a high-volume endocrine surgery unit of a tertiary referral academic hospital, in a 5-year period...
May 17, 2018: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/29762261/a-retrospective-study-of-the-clinical-features-in-papillary-thyroid-microcarcinoma-depending-on-age
#2
Xuan Wang, Jian Tan, Wei Zheng, Ning Li
The aim of this study was to evaluate the clinical features and correlation of neck lymph node involvement of papillary thyroid microcarcinoma (PTMC) according to patients' age. We divided the patients into three groups according to age: young group (<45 years, n=83), middle group (45-54 years, n=80), and old group (≥55 years, n=53). The clinical features among the different groups were analyzed retrospectively. All of the 216 patients had received radioiodine ablation at least one time. Among these, 84 patients had central lymph node metastasis (CLNM), 11 patients had lateral lymph node metastasis (LLNM), and 26 patients had both CLNM and LLNM...
May 14, 2018: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/29760568/co-existence-of-braf-v600e-and-tert-promoter-mutations-in-papillary-thyroid-carcinoma-is-associated-with-tumor-aggressiveness-but-not-with-lymph-node-metastasis
#3
Haoyu Ren, Yifan Shen, Daixing Hu, Wei He, Jing Zhou, Yijia Cao, Yu Mao, Yi Dou, Wei Xiong, Qi Xiao, Yuhong Zhang, Xinliang Su
Background: Mutations of BRAF V600E and TERT promoters are associated with thyroid cancer development. This study further investigated association of these mutations with clinicopathological characteristics from patients with papillary thyroid carcinoma (PTC). Methods: Tumor tissues from 342 PTC patients were obtained for DNA extraction and polymerase chain reaction amplification to detect the BRAF V600E mutation using amplification-refractory mutation system-polymerase chain reaction...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/29748986/ion-conductive-and-thermal-properties-of-a-synergistic-poly-ethylene-carbonate-poly-trimethylene-carbonate-blend-electrolyte
#4
Zhenguang Li, Ronnie Mogensen, Jonas Mindemark, Tim Bowden, Daniel Brandell, Yoichi Tominaga
Electrolytes comprising poly(ethylene carbonate) (PEC)/poly(trimethylene carbonate) (PTM C) with lithium bis(trifluoromethane sulfonyl)imide (LiTFSI) are prepared by a simple solvent casting method. Although PEC and PTMC have similar chemical structures, they are immiscible and two glass transitions are present in the differential scanning calorimetry (DSC) measurements. Interestingly, these two polymers change to miscible blends with the addition of LiTFSI, and the ionic conductivity increases with increasing lithium salt concentration...
May 11, 2018: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/29740219/a-favorable-tumor-size-to-define-papillary-thyroid-microcarcinoma-an-analysis-of-1176-consecutive-cases
#5
Yanping Gong, Genpeng Li, Jianyong Lei, Jiaying You, Ke Jiang, Zhihui Li, Rixiang Gong, Jingqiang Zhu
Background: The optimal treatment strategy for papillary thyroid microcarcinoma (PTMC) has remained controversial. The purpose of this study was to provide a new reference value for PTMC to aid the selection of optimal management for minute lesions. Patients and methods: A pool of 1176 consecutive patients who met the inclusion criteria were ultimately enrolled in this study. The correlation of papillary thyroid carcinoma (PTC) tumor size and lymph node metastasis was analyzed...
2018: Cancer Management and Research
https://www.readbyqxmd.com/read/29726227/-environmental-selection-and-dispersal-limitation-drive-the-assemblage-of-bacterial-community-in-temperate-forest-soils
#6
Zhuan Zhuan Ma, Sha Sha Qiao, Miao Wen Cao, Yong Na Zhou, Jin Xian Liu, Tong Jia, Cui Li, Bao Feng Chai
Environmental selection and dispersal limitation are two basic processes underlying community assembly. The relative importance of those two processes differs across scales, community identities, and community types. The processes responsible for structuring microbial communities in soil of temperate subalpine forest are poorly understood. Here, we investigated the relationship between soil bacterial community structure and environmental factors, and quantified the relative role of edaphic factors, vegetation, and spatial variables in shaping the structure of six soil bacterial communities (LpMC1, LpMC2, PwMC, PmMC, PtMC, and BMC) in five forest types including Larix principis-rupprechtii, Picea wilsonii, Picea meyeri, Pinus tabulaeformis, and Betula platyphylla in Pangquangou Nature Reserve by using PCR-DGGE technology...
April 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29694628/papillary-thyroid-microcarcinoma-characteristics-at-presentation-and-evaluation-of-clinical-and-histological-features-associated-with-a-worse-prognosis-in-a-latin-american-cohort
#7
José M Domínguez, Flavia Nilo, María T Martínez, José M Massardo, Sueli Muñoz, Tania Contreras, Rocío Carmona, Joaquín Jerez, Hernán González, Nicolás Droppelmann, Augusto León
Objective We aimed to describe the presentation of papillary microcarcinoma (PTMC) and identify the clinical and histological features associated with persistence/recurrence in a Latin American cohort. Subjects and methods Retrospective study of PTMC patients who underwent total thyroidectomy, with or without radioactive iodine (RAI), and who were followed for at least 2 years. Risk of recurrence was estimated with ATA 2009 and 2015 classifications, and risk of mortality with 7th and 8th AJCC/TNM systems. Clinical data obtained during follow-up were used to detect structural and biochemical persistence/recurrence...
February 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29552130/interstitial-fibrosis-in-papillary-thyroid-microcarcinoma-and-its-association-with-biological-behavior
#8
Xun Liu, Shuai Zhang, Qinwei Gang, Shikai Shen, Jian Zhang, Yu Lun, Dongdong Xu, Zhiquan Duan, Shijie Xin
Previous studies have revealed that fibrosis may affect the biological behavior of tumors, however associated research on papillary thyroid microcarcinoma (PTMC) is rare. The aim of the present study was to explore the association between interstitial fibrosis (IF) and the biological behavior of PTMC. In the present study, a total of 511 consecutive cases of PTMC were evaluated for the presence of IF and its association with clinical parameters and pathologic biomarkers. IF was identified in 340 of the 511 consecutive cases and it was significantly associated with the age (P=0...
April 2018: Oncology Letters
https://www.readbyqxmd.com/read/29544469/thyroid-cancer-trends-in-incidence-mortality-and-clinical-pathological-patterns-in-zhejiang-province-southeast-china
#9
Lingbin Du, Youqing Wang, Xiaohui Sun, Huizhang Li, Xinwei Geng, Minghua Ge, Yimin Zhu
BACKGROUND: Thyroid cancer is the most common malignant disease of the endocrine system. Previous studies indicate a rapid increase in the incidence of thyroid cancer in recent decades, and this increase has aroused the great public concern. The aim of this study was to analyze the trends in incidence, mortality and clinical-pathological patterns of thyroid cancer in Zhejiang province. METHODS: Population-based incidence and mortality rates of thyroid cancer were collected from eight cancer registries in Zhejiang from 2000 to 2012...
March 15, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29541194/diagnostic-significance-of-ck19-galectin-3-cd56-tpo-and-ki67-expression-and-braf-mutation-in-papillary-thyroid-carcinoma
#10
Lihua Huang, Xuming Wang, Xuan Huang, Huawei Gui, Yan Li, Qiongxia Chen, Dongling Liu, Lijiang Liu
The aim of the present study was to examine the rate of BRAF mutation and the expression profiles of CK19, galectin-3, CD56, thyroid peroxidase (TPO) and Ki67 in papillary thyroid carcinoma (PTC) and papillary thyroid micro-carcinoma (PTMC). A total of 246 cases of thyroid disease were collected, including PTC, PTMC, nodular goiter (NG) and Hashimoto thyroiditis (HT). The results revealed that CK19 expression was 116/120 in PTC, 61/64 in PTMC, 2/34 in NG and 1/28 in HT. Galectin-3 positive expression was 115/120 in PTC, 60/64 in PTMC, 6/34 in NG and 4/28 in HT...
April 2018: Oncology Letters
https://www.readbyqxmd.com/read/29496990/the-role-of-diagnostic-131-i-spect-tc-in-patients-with-papillary-thyroid-microcarcinoma-in-long-term-follow-up
#11
Angela Spanu, Susanna Nuvoli, Ilaria Gelo, Luciana Mele, Bastiana Piras, Giuseppe Madeddu
Papillary thyroid microcarcinoma (PTMC) usually presents favourable prognosis, but it can also be aggressive with neck and distant metastases. We evaluated the diagnostic role of 131 I-single photon emission computed tomography/computed tomography (SPECT/CT) in detecting metastases in PTMC patients in long-term follow-up and whether the procedure may be included in the current diagnostic protocol. Methods: We retrospectively studied 351 consecutive PTMC patients already submitted to thyroidectomy and radioiodine therapy; 21/351 patients were at high risk (H), 94 at low risk (L) and 236 at very low risk (VL)...
March 1, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29488064/percutaneous-laser-ablation-of-unifocal-papillary-thyroid-microcarcinoma-utility-of-conventional-ultrasound-and-contrast-enhanced-ultrasound-in-assessing-local-therapeutic-response
#12
Lu Zhang, Wei Zhou, Weiwei Zhan, Yan Peng, Shan Jiang, Shangyan Xu
PURPOSE: To investigate the use of conventional ultrasound and contrast-enhanced ultrasound (CEUS) in assessing local therapeutic response of percutaneous laser ablation (PLA) for papillary thyroid microcarcinoma (PTMC). METHODS: Sixty-four patients with 64 PTMCs who were referred to our hospital from November 2013 to July 2016 were treated with PLA. The extent of ablation was assessed by CEUS at 10-20 min and 7 days after PLA. The size and volume of the ablation zone were evaluated on conventional ultrasound at 1 h, 1, 3, 6 and 12 months, and every half-year thereafter, and recurrences were also recorded...
February 27, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29457614/poly-trimethylene-carbonate-and-poly-d-l-lactic-acid-modify-human-dendritic-cell-responses-to-staphylococci-but-do-not-affect-th1-and-th2-cell-development
#13
P P Balraadjsing, E C de Jong, D W Grijpma, M W Tanck, S A Zaat
Biomaterial-associated infections (BAIs) are frequent complications in the use of medical devices (biomaterials) correlated with considerable patient discomfort and high treatment costs. The presence of a biomaterial in the host causes derangement of local immune responses increasing susceptibility to infection. Dendritic cells (DCs) have an important role in directing the nature of immune responses by activating and controlling CD4+ T helper (Th) cell responses. To assess the immunomodulatory effect of the combined presence of biomaterials and Staphylococcus aureus (S...
February 19, 2018: European Cells & Materials
https://www.readbyqxmd.com/read/29436757/microstructured-photo-crosslinked-poly-trimethylene-carbonate-for-use-in-soft-lithography-applications-a-biodegradable-alternative-for-poly-dimethylsiloxane
#14
Sigrid Schüller-Ravoo, Sandra M Teixeira, Bernke Papenburg, Dimitrios Stamatialis, Jan Feijen, Dirk W Grijpma
Photo-crosslinkable poly(trimethylene carbonate) (PTMC) macromers were used to fabricate microstructured surfaces. Microstructured PTMC surfaces were obtained by hot embossing the macromer against structured silicon masters and subsequent photo-crosslinking, resulting in network formation. The microstructures of the master could be precisely replicated, limiting the shrinkage. Microstructured PTMC was investigated for use in two different applications: as stamping material to transfer a model protein to another surface and as structured substrate for cell culture...
February 13, 2018: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29427209/long-term-efficacy-of-ultrasound-guided-low-power-microwave-ablation-for-the-treatment-of-primary-papillary-thyroid-microcarcinoma-a-3-year-follow-up-study
#15
Dengke Teng, Guoqing Sui, Caimei Liu, Yu Wang, Yongxu Xia, Hui Wang
PURPOSE: To evaluate the safety and efficacy of ultrasound-guided low-power microwave ablation (MWA) for the treatment of papillary thyroid microcarcinoma (PTMC) with a 3-year follow-up. METHODS: A total of 21 nodules diagnosed as PTMC from the 15 patients were performed with MWA at a power of 20 W. The images of the nodules were recorded by ultrasound before MWA and 1, 3, 6, 12 months after MWA, and every 6 months thereafter, respectively. The volumes of the nodules were compared before MWA and at each follow-up point after MWA...
April 2018: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/29384619/biodegradable-self-assembled-micelles-based-on-mpeg-ptmc-copolymers-an-ideal-drug-delivery-system-for-vincristine
#16
Hang Zhao, Ya Li Wang, Jin Rong Peng, Lan Zhang, Ying Qu, Bing Yang Chu, Ming Ling Dong, Li Wei Tan, Zhi Yong Qian
Despite advantageous properties, micelles using methoxy poly(ethylene glycol)-poly(trimethylene carbonate) (MPEGPTMC) have not been widely studied. In this work, we aim to develop a novel vehicle for vincristine (VCR) based on a MPEG-PTMC micelle system. MPEG-PTMC with a series of molecular weights were synthesized and screened for the appropriate range for forming stable VCR micelles. The prepared micelles were then characterized in vitro and in vivo . VCR micelles presented high stability and ideal sustained release profile...
April 2017: Journal of Biomedical Nanotechnology
https://www.readbyqxmd.com/read/29374347/association-between-preoperative-thyrotrophin-and-clinicopathological-and-aggressive-features-of-papillary-thyroid-cancer
#17
Abbas Ali Tam, Didem Ozdemir, Cevdet Aydın, Nagihan Bestepe, Serap Ulusoy, Nuran Sungu, Reyhan Ersoy, Bekir Cakir
PURPOSE: We aimed to investigate the relation between preoperative serum thyrotrophin (TSH) and clinicopathological features in patients with papillary thyroid carcinoma (PTC) and microcarcinoma (PTMC). METHODS: Patients who underwent thyroidectomy and diagnosed to have benign nodular disease or PTC/PTMC in our clinic were evaluated retrospectively. Patients with a previous history of thyroid surgery, patients using antithyroid medications or thyroid hormone and patients with tumors known to be unresponsive to TSH were excluded...
March 2018: Endocrine
https://www.readbyqxmd.com/read/29344271/clinical-pathological-characteristics-and-prognostic-factors-for-papillary-thyroid-microcarcinoma-in-the-elderly
#18
Jing Tang, Hans B Liu, Lujiao Yu, Xin Meng, Sean X Leng, Haiyan Zhang
Background: The incidence of papillary thyroid microcarcinoma (PTMC) has increased dramatically over the past three decades worldwide. The annual rate of increase in the elderly (≥65) PTMC patients is 1.4 times higher than that in the adult (<65) PTMC patients. The aim of the present study is to identify the clinical-pathological characteristics and prognostic factors in the elderly PTMC patients. Methods: The source population is PTMC patients whose information is available in the Surveillance, Epidemiology and End Results (SEER) database (2004-2013)...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29306230/prediction-of-central-lymph-node-metastasis-in-patientswith-thyroid-papillary-microcarcinoma
#19
Şafak Akın, Duygu Yazgan Aksoy, Serkan Akın, Mehmet Kılıç, Fahri Yetişir, Miyase Bayraktar
Background/aim: The purpose of this study was to analyze the clinicopathological characteristics of patients with papillary thyroid carcinoma (PTC) and papillary thyroid microcarcinoma (PTMC) and predictive factors for central lymph node metastasis (CLNM).Materials and methods: Patients diagnosed as having PTC and PTMC were evaluated. Clinical and laboratory parameters were recorded.Results: The mean age at diagnosis was 47.3 +- 11.9 years. Of all 223 patients, 91 (40.8%) had lymph nodes removed, 29 of whom had lymph node metastasis and 24 of whom had only CLNM...
December 19, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29305632/-surgery-of-papillary-thyroid-microcarcinoma
#20
REVIEW
T Weber, S Peth, R Hummel
BACKGROUND: Different countries are currently reporting a substantial increase in the incidence rates of papillary thyroid microcarcinoma (PTMC). OBJECTIVE: Presentation of diagnosis and surgical therapy of PTMC and discussion of a more conservative approach, such as active surveillance. MATERIAL AND METHODS: Overview of the current guidelines from different countries and analysis of recent publications reporting the results of active surveillance of PTMC from Japan, Korea and the USA...
January 5, 2018: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
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