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https://www.readbyqxmd.com/read/28445293/possible-pathways-used-to-predict-different-stages-of-lung-adenocarcinoma
#1
Xiaodong Chen, Qiongyu Duan, Ying Xuan, Yunan Sun, Rong Wu
We aimed to find some specific pathways that can be used to predict the stage of lung adenocarcinoma.RNA-Seq expression profile data and clinical data of lung adenocarcinoma (stage I [37], stage II 161], stage III [75], and stage IV [45]) were obtained from the TCGA dataset. The differentially expressed genes were merged, correlation coefficient matrix between genes was constructed with correlation analysis, and unsupervised clustering was carried out with hierarchical clustering method. The specific coexpression network in every stage was constructed with cytoscape software...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28440781/immunohistochemical-detection-of-the-braf-v600e-mutation-in-papillary-thyroid-carcinoma-evaluation-against-real-time-polymerase-chain-reaction
#2
Miguel Paja Fano, Aitziber Ugalde Olano, Elena Fuertes Thomas, Amelia Oleaga Alday
INTRODUCTION: The BRAF V600E mutation is the most common genetic change in papillary thyroid carcinoma and is associated with a poorer clinical course. Usual methods for its study (DNA sequencing or molecular test based on PCR) are expensive and time-consuming. Recently, immunohistochemistry (IHC) for BRAF mutation has been introduced. OBJECTIVE: To compare the results of IHC and real time PCR (RT-PCR) in the detection of BRAF V600E mutation in papillary thyroid carcinoma...
February 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28440417/increased-cd19-cd24-cd27-b-regulatory-cells-are-associated-with-insulin-resistance-in-patients-with-type-i-hashimoto-s-thyroiditis
#3
Min Yang, Changji Du, Yinping Wang, Jun Liu
Hashimoto's thyroiditis (HT) is characterized by dysregulated immune responses and is commonly associated with insulin resistance. However, the mechanism of insulin resistance in HT remains to be fully elucidated. The aim of the present study was to investigate the correlation between the percentage of B regulatory lymphocytes (Bregs) and insulin resistance in patients with HT but with normal thyroid function (type I). A total of 59 patients with type I HT and 38 healthy volunteers were enrolled in the study...
April 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28440063/micronuclei-and-nuclear-buds-highlighting-overlooked-indicators-of-chromosomal-damage-in-thyroid-aspiration-smears
#4
Tuba Dilay Kokenek-Unal, Ipek Coban
BACKGROUND: We aimed to examine the diagnostic utility of micronuclei (MN) and nuclear buds (NBs) in aspiration smears of the well-differentiated epithelial lesions of thyroid. METHODS: One hundred five cases composed of 34 follicular nodular disease (FND), 31 Hashimoto's thyroiditis (HT), and 40 papillary thyroid carcinoma (PTC) were compiled retrospectively. May- Grünwald Giemsa (MGG) stained smears of each case were selected to count cells with nuclear protrusions (NPs) per 1000 cells...
April 24, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28439924/prevalence-and-predictors-of-thyroid-functional-abnormalities-in-newly-diagnosed-al-amyloidosis
#5
E Muchtar, D S Dean, A Dispenzieri, D Dingli, F K Buadi, M Q Lacy, S R Hayman, P Kapoor, N Leung, S Russell, J A Lust, Yi Lin, R Warsame, W Gonsalves, T V Kourelis, R S Go, R Chakraborty, S Zeldenrust, R A Kyle, S Vincent Rajkumar, S K Kumar, M A Gertz
BACKGROUND: Data on the effect of systemic immunoglobulin light chain amyloidosis (AL amyloidosis) on thyroid function are limited. OBJECTIVE: To assess the prevalence of hypothyroidism in AL amyloidosis patients and determine its predictors. METHODS: 1142 newly diagnosed AL amyloidosis patients were grouped based on the thyroid-stimulating hormone (TSH) measurement at diagnosis: hypothyroid group (TSH above upper normal reference; >5 mIU L(-1) ; n = 217, 19% of study participants) and euthyroid group (n = 925, 81%)...
April 24, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28438431/phantom-to-clinic-development-of-hypofractionated-stereotactic-body-radiotherapy-for-early-stage-glottic-laryngeal-cancer
#6
Chuxiong Ding, Stephen G Chun, Baran D Sumer, Lucien A Nedzi, Ramzi E Abdulrahman, John S Yordy, Pam Lee, Brian Hrycushko, Timothy D Solberg, Chul Ahn, Robert D Timmerman, David L Schwartz
The purpose of this study was to commission and clinically test a robotic stereotactic delivery system (CyberKnife, Sunnyvale, CA) to treat early-stage glottic laryngeal cancer. We enrolled 15 patients with cTis-T2N0M0 carcinoma of the glottic larynx onto an institutional review board (IRB)-approved clinical trial. Stereotactic body radiotherapy (SBRT) plans prescribed 45 Gy/10 fractions to the involved hemilarynx. SBRT dosimetry was compared with (1) standard carotid-sparing laryngeal intensity-modulated radiation therapy (IMRT) and (2) selective hemilaryngeal IMRT...
April 21, 2017: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/28436085/effect-of-triclosan-on-anuran-development-and-growth-in-a-larval-amphibian-growth-and-development-assay
#7
Douglas J Fort, Michael B Mathis, Sascha Pawlowski, Jeffrey C Wolf, Robert Peter, Samantha Champ
A larval amphibian growth and development assay was performed to evaluate the potential effects of environmentally-relevant concentrations of triclosan (TCS) on amphibian development and growth. Xenopus laevis were exposed to TCS 0.0 (control), 6.3, 12.5 and 25.0 μg l(-1) (estimated maximum tolerable concentration) until 10 weeks post-metamorphosis. At median metamorphosis time (Nieuwkoop and Faber stage 62), five larvae per replicate were collected for snout-vent length, hind limb length and body weight measurements, and histopathological examination of thyroid glands...
April 24, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28436021/burning-mouth-syndrome-results-of-screening-tests-for-vitamin-and-mineral-deficiencies-thyroid-hormone-and-glucose-levels-experience-at-mayo-clinic-over-a-decade
#8
Claudia S Morr Verenzuela, Mark D P Davis, Alison J Bruce, Rochelle R Torgerson
BACKGROUND: Burning mouth syndrome (BMS) is a disorder characterized by chronic mouth pain in the absence of objective clinical abnormalities. Vitamin or mineral deficiencies may have a role in BMS, but data regarding the prevalence and relevance of hematinic deficiencies are conflicting. We aimed to determine the frequency of specific laboratory abnormalities in patients with BMS. METHODS: We retrospectively reviewed the results of screening blood tests in patients with BMS at our institution between January 2003 and December 2013...
April 23, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28433701/thyroid-monitoring-of-adults-and-children-after-reactor-accidents-with-a-new-dose-rate-measurement-device
#9
Oliver Meisenberg, Udo C Gerstmann
A specialized dose rate measurement device that was designed for monitoring the thyroid dose of children and adults after reactor accidents was tested. In measurements with neck phantoms and a human patient, the device was found to be capable of measuring the required low dose rates, even within increased ambient radiation. It is suitable for the application in emergency care centers.
April 6, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28433252/nrasq61r-immunohistochemistry-detects-both-nrasq61r-and-krasq61r-mutations-in-colorectal-cancer
#10
Jie-Yang Jhuang, Chang-Tsu Yuan, Yu-Lin Lin, Mei-Ling Cheng, Jau-Yu Liau, Jia-Huei Tsai
The NRASQ61R monoclonal antibody (clone sp174) is a mutation-specific antibody that is increasingly being used to detect the NRAS(Q61R) mutation in melanomas. This antibody has been reported to be highly correlated with the NRAS(Q61R) mutation status in melanomas and follicular neoplasms of the thyroid gland. However, its utility in colorectal carcinoma (CRC) has remained largely unknown. In this study, we assessed the sensitivity, specificity, and diagnostic utility of NRASQ61R immunohistochemistry in a cohort consisting of tissue sections of 113 CRCs, which were molecularly profiled for the KRAS, NRAS, and BRAF mutations...
April 19, 2017: Pathology
https://www.readbyqxmd.com/read/28432797/effects-of-levothyroxine-administration-and-withdrawal-on-the-hypothalamic-pituitary-thyroid-axis-in-euthyroid-dogs
#11
V Ziglioli, D L Panciera, G C Troy, W E Monroe, K M Boes, K R Refsal
BACKGROUND: Chronic supplementation can suppress the hypothalamic-pituitary-thyroid axis (HPTA) and make it difficult to assess thyroid function after withdrawal of levothyroxine. OBJECTIVES: To determine whether the HPTA is suppressed after levothyroxine administration in euthyroid dogs and the time required for resolution of any suppression. ANIMALS: Twenty-eight healthy euthyroid dogs. METHODS: A prospective, randomized study administering levothyroxine to euthyroid dogs for 8 weeks (group 1) or 16 weeks (group 2)...
April 22, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/28428670/thyroid-autoimmunity-in-patients-with-chronic-urticaria
#12
Emina Kasumagic-Halilovic, Nermina Beslic, Nermina Ovcina-Kurtovic
INTRODUCTION: chronic urticaria (CU) is a skin disorder characterized by transient, pruritic wheals persisting for longer than 6 weeks. The etiopathogenesis of the disease is still unclear, but there is evidence that autoimmunity and endocrine dysfunction may be involved. AIM: the aim of this study was to determine whether chronic urticaria is statistically associated with thyroid autoimmunity. PATIENTS AND METHODS: in a prospective case-control study, we compared the frequency of thyroid auto-antibodies (thyroglobulin antibody, anti-Tg and thyroid peroxidase antibody, anti-TPO) in 70 patients with chronic urticaria and in 70 healthy volunteers...
February 2017: Medical Archives
https://www.readbyqxmd.com/read/28428227/mechanisms-in-endocrinology-the-multiple-facets-of-gh-lessons-from-lifetime-untreated-isolated-gh-deficiency-due-to-ghrh-receptor-mutation
#13
Manuel Aguiar-Oliveira, Anita Ho Souza, Carla R Oliveira, Viviane C Campos, Luiz A Oliveira-Neto, Roberto Salvatori
Twenty years ago, we described a kindred of 105 individuals with isolated GH deficiency (IGHD) in Itabaianinha County, in Brazilian northeast, due to a homozygous mutation in the GH-releasing hormone receptor gene. These subjects exhibit markedly reduced GH responsiveness to stimulatory tests, and anterior pituitary hypoplasia. Serum concentrations of IGF-I, IGF binding protein type 3, and the acid-labile subunit are markedly reduced, with a lesser reduction of IGF-II. The most striking physical findings of these IGHD individuals are the proportionate short stature, doll facies, high-pitched voice, and visceral obesity with reduced fat free mass...
April 20, 2017: European Journal of Endocrinology
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
#14
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/28424962/phase-i-dose-escalation-study-of-milciclib-in-combination-with-gemcitabine-in-patients-with-refractory-solid-tumors
#15
Sandrine Aspeslagh, Kunwar Shailubhai, Rastilav Bahleda, Anas Gazzah, Andréa Varga, Antoine Hollebecque, Christophe Massard, Anna Spreafico, Michele Reni, Jean-Charles Soria
BACKGROUND: This phase I trial evaluated the safety and tolerability of milciclib, an inhibitor of multiple cyclin-dependent kinases and tropomycin receptor kinase A, in combination with gemcitabine in patients with refractory solid tumors. DESIGN: Sixteen patients were enrolled and treated with milciclib at three dose levels (45 mg/m(2)/day, n = 3; 60 mg/m(2)/day, n = 3; and 80 mg/m(2)/day, n = 10) with a fixed dose of gemcitabine (1000 mg/m(2)/day). Milciclib was administered orally once daily for 7 days on/7 days off in a 4-week cycle, and gemcitabine was administered intravenously on days 1, 8 and 15 in a 4-week cycle...
April 19, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28424174/the-clinical-value-of-regular-thyroid-function-tests-during-amiodarone-treatment
#16
Stan Benjamens, Robin P F Dullaart, Wim J Sluiter, Michiel Rienstra, Isabelle C van Gelder, Thera P Links
OBJECTIVE: Amiodarone is used for the maintenance of sinus rhythm in patients with arrhythmias, but thyroid dysfunction (amiodarone-induced thyrotoxicosis(AIT) or -hypothyroidism(AIH)) is a common adverse effect. Since the onset of AIT and AIH may be unpredictable, the value of long-term regular monitoring of amiodarone treated patients for thyroid dysfunction is still uncertain. DESIGN: We retrospectively documented the frequency at which overt thyroid dysfunction was preceded by subclinical thyroid dysfunction...
April 19, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28423960/the-role-of-molecular-diagnostic-testing-in-the-management-of-thyroid-nodules
#17
Maureen D Moore, Suraj Panjwani, Katherine D Gray, Brendan M Finnerty, Rasa Zarnegar, Thomas J Fahey
Fine needle aspiration (FNA) with cytologic examination remains the standard of care for investigation of thyroid nodules. However, as many as 30% of FNA samples are cytologically indeterminate for malignancy, which confounds clinical management. To reduce the burden of repeat diagnostic testing and unnecessary surgery, there has been extensive investigation into molecular markers that can be detected on FNA specimens to more accurately stratify a patient's risk of malignancy. Areas Covered: In this review, the authors discuss recent evidence and progress in molecular markers used in the diagnosis of thyroid cancer highlighting somatic gene alterations, molecular technologies and microRNA analysis...
April 19, 2017: Expert Review of Molecular Diagnostics
https://www.readbyqxmd.com/read/28423638/her-inhibitor-promotes-braf-mek-inhibitor-induced-redifferentiation-in-papillary-thyroid-cancer-harboring-brafv600e
#18
Lingxiao Cheng, Yuchen Jin, Min Liu, Maomei Ruan, Libo Chen
Redifferentiation therapy with BRAF/MEK inhibitors to facilitate treatment with radioiodine represents a good choice for radioiodine-refractory differentiated thyroid carcinoma, but recent initial clinical outcomes were modest. MAPK rebound caused by BRAF/MEK inhibitors-induced activation of HER2/HER3 is a resistance mechanism, and combination with HER inhibitor to prevent MAPK rebound may sensitize BRAFV600E-mutant thyroid cancer cells to redifferentiation therapy. To evaluate if inhibiting both BRAF/MEK and HER can produce stronger redifferetiation effect, we tested the effects of BRAF/MEK inhibitor dabrafenib/selumetinib alone or in combination with HER inhibitor lapatinib on the expression and function of iodine- and glucose-handling genes in BRAFV600E-positive BCPAP and K1 cells, using BHP 2-7 cells harboring RET/PTC1 rearrangement as control...
March 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422086/association-between-secretoglobin-family-3a-member-2-scgb3a2-gene-polymorphisms-and-asthma-in-a-korean-population
#19
Su Kang Kim, Hosik Seok, Hae Jeong Park, Kyuup Han, Sang Wook Kang, Ju Yeon Ban, Hee-Jae Jung, Kwan-Il Kim, Beom-Joon Lee, Jinju Kim, Joo-Ho Chung
BACKGROUND Secretoglobin family 3A member 2 (SCGB3A2) plays an important role in secreting lung surfactant protein, which is a downstream target of thyroid transcription factor. MATERIAL AND METHODS We investigated whether single-nucleotide polymorphisms (SNPs) of SCGB3A2 gene contribute to susceptibility to asthma. To explore this possible association, 2 promoter SNPs (rs6882292, 659 G/A and rs1368408, -112 G/A) and missense SNP (rs151333009, stop codon) were tested in SCGB3A2 gene in 101 asthma patients and 377 healthy control subjects...
April 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28421812/the-frequency-of-incidental-findings-and-subsequent-evaluation-in-low-dose-ct-scans-for-lung-cancer-screening
#20
Lillie Morgan, Humberto Choi, Michal Reid, Ali Khawaja, Peter J Mazzone
RATIONALE: The USPSTF recommends lung cancer screening with low-dose chest CT scans (LDCT) for a well-defined high-risk population. Data on the frequency and impact of incidental findings on LDCT scans performed within a centralized lung cancer screening program has not been reported. OBJECTIVES: Previous studies have reported IFs in the setting of clinical trials. We present our findings in a real clinical setting where the decision to manage these findings may depend on factors that are not captured in a research trial such as disclosing IFs, patient preferences, severity of comorbidities, and physician expertise...
April 19, 2017: Annals of the American Thoracic Society
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