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thyroid pathology

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https://www.readbyqxmd.com/read/28430650/the-p-g534e-variant-of-habp2-is-not-associated-with-sporadic-papillary-thyroid-carcinoma-in-a-polish-population
#1
Artur Kowalik, Danuta Gąsior-Perczak, Martyna Gromek, Monika Siołek, Agnieszka Walczyk, Iwona Pałyga, Małgorzata Chłopek, Janusz Kopczyński, Ryszard Mężyk, Aldona Kowalska, Stanisław Góźdź
Thyroid cancer is one of the most frequently diagnosed cancers of the endocrine system. There are no known genetic risk factors for non-medullary thyroid cancer, other than a small number of hereditary syndromes; however, approximately 5% of non-medullary thyroid cancer, designated familial non-medullary thyroid cancer, exhibits heritability. The p.G534E (c.1601G>A) variant of HABP2 was recently reported as a risk factor for familial non-medullary thyroid cancer, including papillary thyroid carcinoma. We analyzed the incidence of the c...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28428694/a-microarray-immunoassay-for-serum-thyrotropin-and-thyroglobulin-using-antibodies-immobilized-on-track-etched-membranes
#2
Bharti Jain, J Kumarasamy, Chandrakala Gholve, Savita Kulkarni, M G R Rajan
Serum thyroglobulin (Tg) and thyroid stimulating hormone (TSH) measurements have evolved as important analytes for monitoring the prognosis of patients with differentiated thyroid cancer, post-thyroidectomy. Individual analyte immunoassay is the current practice in clinical pathology, but the simultaneous assay for all relevant analytes for a given disease, can reduce assay costs, improve patient compliance and give the clinician more information for an unequivocal diagnosis. Microarray immunoassay (MI) can achieve this goal and, hence, we have developed and validated a immuno-radiometric MI for quantitation of serum TSH and Tg by using highly micro-porous polycarbonate (PC) track-etched membranes (TEM) to immobilize the monoclonal anti-TSH and polyclonal anti-Tg antibodies in ~1 mm diameter spots...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28427429/vitamin-d-receptor-retinoid-x-receptor-and-peroxisome-proliferator-activated-receptor-%C3%AE-are-overexpressed-in-brca1-mutated-breast-cancer-and-predict-prognosis
#3
Sabine Heublein, Doris Mayr, Alfons Meindl, Alexandra Kircher, Udo Jeschke, Nina Ditsch
BACKGROUND: BRCA1 mutated breast cancers are commonly diagnosed as negative for classical hormone receptors i.e. estrogen receptor, progesterone receptor and/or Her2. Due to these common targets being absent the application of anti-endocrine therapies is rather limited and a certain focus has been set on discovering alternative target molecules. We recently highlighted thyroid hormone receptors (TRs) to predict prognosis in breast cancer patients that had been diagnosed a BRCA1 germline mutation...
April 20, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28424923/shear-wave-velocity-of-the-healthy-thyroid-gland-in-children-with-acoustic-radiation-force-impulse-elastography
#4
Meltem Ceyhan Bilgici, Dilek Sağlam, Semra Delibalta, Serap Yücel, Leman Tomak, Muzaffer Elmalı
PURPOSE: Acoustic radiation force impulse imaging is a kind of shear wave elastography that can be used in children for differentiating thyroid pathologies. Possible changes in the healthy thyroid gland in children may create difficulties in the use of shear wave velocities (SWV) in thyroid pathologies. The aim of this study was to define the normal values of SWV for the healthy thyroid gland in children, elucidate the correlation of the SWV values with potential influencing factors, and evaluate intra-operator reproducibility of the SWV...
April 19, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/28421036/genetics-of-thyroid-stimulating-hormone-receptor-relevance-for-autoimmune-thyroid-disease
#5
REVIEW
Mihaela Stefan, Larissa C Faustino
Production of thyroid-stimulating hormone receptor (TSHR) antibodies represents the hallmark of Graves' disease (GD) pathogenesis. Thus, for more than two decades the TSHR gene has been at the center of studies intended to elucidate its contribution to disease pathology. The advent of genome-wide association technology allowed to establish a strong association of the TSHR gene with GD. Subsequent fine-mapping studies narrowed the disease-susceptibility region to a 40 kb sequence in intron 1, where at least five GD-associated SNPs in tight linkage disequilibrium were identified...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28419663/total-thyroidectomy-for-pressure-symptoms-in-patients-with-hashimoto-s-thyroiditis
#6
Katrina Heggie, Meei Yeung, Simon Grodski, James Lee, Jonathan Serpell
BACKGROUND: Hashimoto's thyroiditis (HT) is rarely on its own the indication for thyroidectomy. However, surgery in patients with HT will be undertaken when there is malignancy and may be required for pressure symptoms. Therefore, this study aimed to investigate the indications for surgery in HT patients. METHODS: The Monash University Endocrine Surgery Database was analysed from 1994 to 2013 for patients with HT. Patients with HT were compared to a similar group of patients with no HT on histopathology...
April 16, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28413206/differential-diagnostic-significance-of-hbme-1-ck19-and-s100-in-various-thyroid-lesions
#7
S Palo, D S Biligi
OBJECTIVE: Due several overlapping histomorphological features and pitfalls in thyroid pathology, there is need to establish a panel of immunomarkers that would aid in proper diagnosis. This study was carried out to investigate the ability of HBME-1, CK19, and S100 in differentiating between hyperplastic, benign and malignant thyroid lesions. MATERIALS AND METHODS: Immunohistochemical analysis of 60 thyroidectomy specimens (10 hyperplastic nodules, 14 follicular adenomas and 36 malignant thyroid neoplasms) was carried out...
April 2017: Malaysian Journal of Pathology
https://www.readbyqxmd.com/read/28411179/clusterin-expression-in-medullary-thyroid-carcinoma-is-inversely-correlated-with-the-presence-of-lymph-node-metastases
#8
Najat Mourra, Malika Bennis, Pierre-Yves Boelle, Beatrix Cochand-Priollet, Marine Lefevre, Charles Lepine, Andre Balaton, Jerzy Klijanienko, Fabrice Menegaux, Frederique Tissier
Clusterin (CLU) is a sulfated glycoprotein implicated in many physiological and pathological processes, including tumorigenesis. Several studies have reported the overexpression of CLU in human neoplasm, examined by immunohistochemistry. However, there is no extensive data on its role in the thyroid. Here we investigate CLU expression in thyroid tumors, and the potential correlation between this expression and clinicopathologic parameters. Immunohistochemistry with Anti-CLU was performed on paraffin sections from 39 thyroid tumors...
April 11, 2017: Human Pathology
https://www.readbyqxmd.com/read/28410848/improving-access-to-image-guided-procedures-at-an-integrated-rural-critical-access-hospital-ultrasound-guided-thyroid-biopsy-program
#9
Thang Q Le, Yadiel Sánchez, Alexander S Misono, Sanjay Saini, Anand M Prabhakar
PURPOSE: Critical access hospitals face difficulty providing all services locally and may need to refer patients off-site for additional care. Providing on-site minimally invasive biopsies, may obviate visits to tertiary or quaternary care centers. This study aims to assess feasibility and outcomes of an ultrasound-guided thyroid biopsy program in a critical access hospital. METHODS: In this HIPAA compliant, IRB approved study, the Interventional Radiology (IR) database of a 19-bed, island, rural, critical access hospital without onsite pathology services affiliated with our quaternary care institution was retrospectively reviewed to identify all thyroid biopsies that were performed on site since inception of the service in April 2014 through August 2016...
February 16, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28400402/molecular-targeted-therapies-in-adrenal-pituitary-and-parathyroid-malignancies
#10
Anna Angelousi, Georgios K Dimitriadis, Gn Zografos, Svenja Nölting, Gregory A Kaltsas, Ashley B Grossman
Tumourigenesis is a relatively common event in endocrine tissues. Currently, specific guidelines have been developed for common malignant endocrine tumours which also incorporate advances in molecular targeted therapies (MTT), as in thyroid cancer and gastrointestinal neuroendocrine malignancies. However, there is little information regarding the role and efficacy of MTT in the relatively rare malignant endocrine tumours mainly involving the adrenal medulla, adrenal cortex, pituitary and parathyroid glands...
April 11, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28396943/sonographic-differences-between-conventional-and-follicular-variant-papillary-thyroid-carcinoma
#11
Nicola M Hughes, Andreea Nae, Josephine Barry, Brendan Fitzgerald, Linda Feeley, Patrick Sheahan
Follicular variant papillary thyroid carcinoma (FVPTC) may pose a diagnostic challenge due to higher likelihood of lower risk cytology compared to conventional papillary thyroid carcinoma (CPTC). Recent guidelines have recommended the use of sonographic features to guide decisions to biopsy thyroid nodules. The purpose of this study was to evaluate the sonographic features of CPTC and FVPTC. This is a retrospective study design done in an Academic teaching hospital setting. Preoperative ultrasounds of 79 patients with conventional CPTC (48) and FVPTC (31) were reviewed by a radiologist blinded to histological diagnosis...
April 10, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28396842/uptake-of-3-iodothyronamine-hormone-analogs-inhibits-the-growth-and-viability-of-cancer-cells
#12
Michael Rogowski, Lauren Gollahon, Grazia Chellini, Fariba M Assadi-Porter
3-Iodothyronamine (T1AM) is a structural analog of thyroid hormone that has been demonstrated to have potent affects on numerous physiological systems. Most studies on T1AM have explored its effects in healthy functional systems; while its potential therapeutic uses and safety, and efficacy in pathological conditions are largely unknown. We sought to evaluate the effects of T1AM and its structural analog SG-2 on cancer cell growth and viability. We analyzed the cytotoxicity of these analogs on MCF7 breast cancer cells, HepG2 hepatocellular cancer cells as well as normal control cells using primary human foreskin fibroblasts and mouse preadipocytes control cells...
April 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/28394114/ovarian-teratoma-in-routine-biopsy-material-during-a-five-year-period
#13
Marina Kos, Jasmina Nikić, Tanja Leniček
Teratomas are tumors derived from germ cells, most frequently arising in the gonads. The aim of this study was to determine the number of ovarian teratomas diagnosed in the routine biopsy material at Ljudevit Jurak Clinical Department of Pathology, Sestre milosrdnice University Hospital Center during a 5-year period, as well as their clinical, gross and microscopic characteristics. Teratomas accounted for 48.6% (n=166) of primary ovarian tumors. The patient mean age was 34.74±12.37 years. Difference in the incidence of teratoma between the left and right ovary was not significant; bilateral teratoma was found in 13 patients...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28393379/surveillance-neck-sonography-after-thyroidectomy-for-papillary-thyroid-carcinoma-pitfalls-in-the-diagnosis-of-locally-recurrent-and-metastatic-disease
#14
Wynne Yuru Chua, Jill E Langer, Lisa P Jones
A sonographic examination of the neck performed 6 to 12 months after thyroid surgery in patients with differentiated thyroid cancer is strongly recommended by the American Thyroid Association and considered mandatory by the European Thyroid Association for locoregional surveillance. The aim of this article is to review the normal anatomic changes expected after thyroid surgery and the pathologic mimics of thyroid carcinoma recurrence in post-thyroidectomy patients as they appear on neck sonography. We hope to offer some pearls to increase diagnostic confidence in this setting...
April 10, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28393212/sirt6-is-upregulated-and-associated-with-cancer-aggressiveness-in-papillary-thyroid-cancer-via-braf-erk-mcl%C3%A2-1-pathway
#15
Ning Qu, Jia-Qian Hu, Liang Liu, Ting-Ting Zhang, Guo-Hua Sun, Rong-Liang Shi, Qing-Hai Ji
Sirtuin 6 (SIRT6) is a member of the SIRT family NAD+‑dependent deacetylases reported to function in controlling organism homeostasis, lifespan, and diseases. This study investigated the role of SIRT6 in papillary thyroid cancer (PTC). Data of 391 PTC patients was extracted from The Cancer Genome Atlas database to investigate the expression of SIRTs (SIRT1‑7) and their relationship with clinicopathological parameters. Additional 45 pairs of PTC tumor tissues and corresponding non‑tumor tissues were studied using microarray analysis for SIRT6 expression...
April 5, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28393006/small-cell-lung-cancer-transformation-during-immunotherapy-with-nivolumab-a-case-report
#16
Takuma Imakita, Kohei Fujita, Osamu Kanai, Tsuyoshi Terashima, Tadashi Mio
We report a rare case of transformation of non-small cell lung cancer (NSCLC) to small cell lung cancer (SCLC), without epidermal growth factor receptor (EGFR) gene mutation, during immunotherapy treatment with nivolumab. A 75-year-old man was referred to our hospital following the observation of a 64 mm mass in a chest computed tomography (CT) scan. A transbronchial biopsy of the mass identified the pathological presence of poorly differentiated NSCLC, with no histological signs of SCLC. No mutations were identified in the EGFR gene...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28390952/hypothyroidism-decreases-jak-stat-signaling-pathway-in-lactating-rat-mammary-gland
#17
Fiorella Campo Verde Arboccó, Fabio Andres Persia, María Belén Hapon, Graciela A Jahn
Thyroid pathologies have deleterious effects on lactation. Especially hypothyroidism (HypoT) induces premature mammary involution at the end of lactation and decreases milk production and quality in mid lactation. Milk synthesis is controlled by JAK2/STAT5 signaling pathway and prolactin (PRL), which activates the pathway. In this work we analyzed the effect of chronic 6-propyl-2- thiouracil (PTU)-induced HypoT on PRL signaling pathway on mammary glands from rats on lactation (L) days 2, 7 and 14. HypoT decreased prolactin receptor expression, and expression and activation of Stat5a/b protein...
April 5, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28388397/endoscopy-assisted-resection-of-benign-lesions-on-the-base-of-the-tongue-via-the-transoral-approach-using-a-harmonic-scalpel
#18
Song Fan, Da-Ming Zhang, Wei-Liang Chen
PURPOSE: Surgical removal of lesions from the base of the tongue can be challenging for head and neck surgeons. This study evaluated the clinical outcomes of patients with benign lesions at the base of the tongue who underwent endoscopy-assisted resection through the transoral approach using an ultrasonic harmonic scalpel. PATIENTS AND METHODS: This retrospective observational study was conducted from May 2013 to January 2016. Data collected for each patient included age, gender, chief complaints, clinical symptoms, diagnostic imaging, complications after resection, and reported outcomes of resection...
March 14, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28387096/-a-familial-non-medullary-thyroid-carcinoma-fnmtc-a-clinical-and-genetic-update
#19
REVIEW
H Valdes-Socin, L Palmeira, M-C Burlacu, A-F Daly, V Bours, A Beckers
The syndrome of Familial Non Medullary Thyroid Carcinoma (FNMTC) includes two or more patients with an isolated non-medullary thyroid cancer (papillary, follicular, anaplastic) within the same family. To diagnose FNMTC, the clinician must exclude a syndromic presentation such as the syndromes of Cowden, Gardner or Werner, and the Carney Complex. Up to now, a hundred families with FNMTC have been genetically studied, including forms with (Ch19p13.2) or without oxyphilia (Ch2q21), in association with a multinodular goiter (Ch14q32), or with a renal cancer (Ch1q21)...
December 2016: Revue Médicale de Liège
https://www.readbyqxmd.com/read/28382784/the-impact-of-presence-of-hashimoto-s-thyroiditis-on-diagnostic-accuracy-of-ultrasound-guided-fine-needle-aspiration-biopsy-in-subcentimeter-thyroid-nodules-a-retrospective-study-from-fuscc
#20
Lili Gao, Ben Ma, Li Zhou, Yu Wang, Shuwen Yang, Ning Qu, Yi Gao, Qinghai Ji
The incidence of PTMC has been increasing in the recent years. This study aimed to investigate the diagnostic value of US-FNA in thyroid nodules ≤1 cm and whether the presence of Hashimoto's thyroiditis (HT) in thyroid could influence the accuracy. The patients who accepted US-FNA at FUSCC from December 2012 to November 2015 and followed our criteria were enrolled in this study. We extracted the cytological, pathological, and follow-up US/US-FNA data of patients with subcentimeter nodules. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), false-negative rate (FNR), false-positive rate (FPR), and AUC were calculated to define FNA diagnostic performance in patients...
April 5, 2017: Cancer Medicine
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