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https://www.readbyqxmd.com/read/29074635/patterns-of-sonographically-detectable-echogenic-foci-in-pediatric-thyroid-carcinoma-with-corresponding-histopathology-an-observational-study
#1
I Erdem Toslak, B Martin, G A Barkan, A I Kılıç, J E Lim-Dunham
BACKGROUND AND PURPOSE: Small echogenic foci within pediatric thyroid nodules are commonly seen by ultrasound and are one of the features used to determine the level of suspicion for malignancy. These are sometimes termed "microcalcifications," but their relation with malignancy is controversial due to the lack of standard terminology. Our aim was to evaluate sonographic patterns of echogenic foci in malignant pediatric thyroid nodules and describe the distribution of corresponding psammoma bodies and other histopathologic findings in thyroidectomy specimens...
October 26, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29067394/a-simple-neridronate-based-surface-coating-strategy-for-upconversion-nanoparticles-highly-colloidally-stable-125-i-radiolabeled-nayf4-yb-3-er-3-peg-nanoparticles-for-multimodal-in-vivo-tissue-imaging
#2
Uliana Kostiv, Volodymyr Lobaz, Jan Kučka, Pavel Švec, Ondřej Sedláček, Martin Hrubý, Olga Janoušková, Pavla Francová, Věra Kolářová, Luděk Šefc, Daniel Horák
In this report, monodisperse upconversion NaYF4:Yb(3+)/Er(3+) nanoparticles with superior optical properties were synthesized by the oleic acid-stabilized high-temperature co-precipitation of lanthanide chlorides in octadec-1-ene as a high-boiling organic solvent. To render the particles with biocompatibility and colloidal stability in bioanalytically relevant phosphate buffered saline (PBS), they were modified by using in-house synthesized poly(ethylene glycol)-neridronate (PEG-Ner), a bisphosponate. The NaYF4:Yb(3+)/Er(3+)@PEG nanoparticles showed excellent long-term stability in PBS and/or albumin without any aggregation or morphology transformation...
November 9, 2017: Nanoscale
https://www.readbyqxmd.com/read/29047068/intraductal-papillary-mucinous-neoplasm-of-the-pancreas-in-young-patients-tumor-biology-clinical-features-and-survival-outcomes
#3
Vicente Morales-Oyarvide, Mari Mino-Kenudson, Cristina R Ferrone, Andrew L Warshaw, Keith D Lillemoe, Dushyant V Sahani, Ilaria Pergolini, Marc A Attiyeh, Mohammad Al Efishat, Neda Rezaee, Ralph H Hruban, Jin He, Matthew J Weiss, Peter J Allen, Christopher L Wolfgang, Carlos Fernández-Del Castillo
AIM: The aim of this paper is to describe the characteristics of intraductal papillary mucinous neoplasms (IPMNs) of the pancreas in young patients. METHODS: We evaluated 1693 patients from the Pancreatic Surgery Consortium who underwent resection for IPMN and classified them as younger or older than 50 years of age at the time of surgery. We assessed the relationship of age with clinical, radiological, pathological, and prognostic features. RESULTS: We identified 90 (5%) young patients...
October 18, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29030129/laryngeal-and-vocal-alterations-after-thyroidectomy
#4
Renata Mizusaki Iyomasa, José Vicente Tagliarini, Sérgio Augusto Rodrigues, Elaine Lara Mendes Tavares, Regina Helena Garcia Martins
INTRODUCTION: Dysphonia is a common symptom after thyroidectomy. OBJECTIVE: To analyze the vocal symptoms, auditory-perceptual and acoustic vocal, videolaryngoscopy, the surgical procedures and histopathological findings in patients undergoing thyroidectomy. METHODS: Prospective study. Patients submitted to thyroidectomy were evaluated as follows: anamnesis, laryngoscopy, and acoustic vocal assessments. Moments: pre-operative, 1st post (15 days), 2nd post (1 month), 3rd post (3 months), and 4th post (6 months)...
September 21, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29028127/pure-mucinous-colloid-adenocarcinoma-of-the-conjunctiva
#5
Valentina Logunova, Olayemi Sokumbi
Mucinous carcinomas of the periorbital area are very rare malignant tumors and can be primary or secondary to metastasis. Primary mucinous carcinomas of the eyelid include, most commonly, primary cutaneous mucinous carcinoma with endocrine mucin-producing sweat gland carcinoma being a remote second.[1,2,3,4] To our knowledge, primary mucinous carcinomas of conjunctiva or lacrimal gland elements have not been described in the literature.[5,6] Metastatic carcinoma from visceral sites should also be considered in the differential diagnosis...
October 13, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28962799/engineering-pectin-based-hollow-nanocapsules-for-delivery-of-anticancer-drug
#6
Feng Ji, Junjie Li, Zhihui Qin, Boguang Yang, Ershuai Zhang, Dianyu Dong, Jinmei Wang, Yan Wen, Liang Tian, Fanglian Yao
Multifunctional capsules have great applications in biomedical fields. In this study, novel polysaccharide-based nanocapsules were prepared via a layer-by-layer technique using silica as the templates. The shell was constructed based on the electrostatic interactions between pectin and chitosan. The pectin-chitosan nanocapsules ((Pec/Cs)3Pec) could keep good colloidal stability within 96h in PBS solution and 48h in BSA solution. Meanwhile, the nanocapsules exhibited a high drug loading and pH-sensitive release property for doxorubicin hydrochloride...
December 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917533/nanoparticles-of-a-polyaspartamide-based-brush-copolymer-for-modified-release-of-sorafenib-in-vitro-and-in-vivo-evaluation
#7
Melchiorre Cervello, Giovanna Pitarresi, Antonella Bavuso Volpe, Barbara Porsio, Daniele Balasus, Maria Rita Emma, Antonina Azzolina, Roberto Puleio, Guido Ruggero Loria, Stefano Puleo, Gaetano Giammona
In this paper, we describe the preparation of polymeric nanoparticles (NPs) loaded with sorafenib for the treatment of hepatocellular carcinoma (HCC). A synthetic brush copolymer, named PHEA-BIB-ButMA (PBB), was synthesized by Atom Trasnfer Radical Polymerization (ATRP) starting from the α-poly(N-2-hydroxyethyl)-d,l-aspartamide (PHEA) and poly butyl methacrylate (ButMA). Empty and sorafenib loaded PBB NPs were, then, produced by using a dialysis method and showed spherical morphology, colloidal size, negative ζ potential and the ability to allow a sustained sorafenib release in physiological environment...
September 14, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28890154/diabetes-mellitus-in-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-is-associated-with-high-grade-dysplasia-and-invasive-carcinoma
#8
Vicente Morales-Oyarvide, Mari Mino-Kenudson, Cristina R Ferrone, Dushyant V Sahani, Ilaria Pergolini, Adrián A Negreros-Osuna, Andrew L Warshaw, Keith D Lillemoe, Carlos Fernández-Del Castillo
BACKGROUND: While the association between Diabetes Mellitus (DM) and pancreatic ductal adenocarcinoma is well recognized, its importance in intraductal papillary mucinous neoplasm of the pancreas (IPMN) is not well-defined. We sought to examine the associations of DM with degree of dysplasia and morphological subtypes in IPMN. METHODS: In 454 patients with resected IPMN, we evaluated associations of DM with high-grade dysplasia (HGD), invasive carcinoma, precursor epithelial subtype (gastric, intestinal, oncocytic, pancreatobiliary), and histological type of invasive carcinomas (tubular, colloid, oncocytic) using logistic regression...
September 7, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28764174/an-indian-tertiary-care-hospital-scenario-of-papillary-carcinoma-of-thyroid
#9
Ponnuswamy Karkuzhali, Muthureddy Yogambal, Manoj Kumar
INTRODUCTION: Thyroid carcinoma is the most common endocrine malignancy and its Papillary Histotype {Papillary Carcinoma of Thyroid (PTC)} is the most common type of Thyroid cancer. The clinicopathological features of PTC vary with geographical location. AIM: To describe the clinicopathological profile of PTC in a Tertiary Care Hospital located in Chennai, Tamil Nadu, India. MATERIALS AND METHODS: Data on age, sex, centricity of the tumour, presence of calcifications, infiltration, metastasis, associated non malignant conditions and frequency of histological subtypes of all cases of PTC diagnosed in Department of Pathology, Madras Medical College Chennai, Tamil Nadu, India between January 2007 and December 2011 were obtained from clinicopathological documents and analysed statistically...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28726368/mussel-inspired-polydopamine-coated-lanthanide-nanoparticles-for-nir-ii-ct-dual-imaging-and-photothermal-therapy
#10
Yu Dai, Dongpeng Yang, Danping Yu, Cong Cao, Qiuhong Wang, Songhai Xie, Liang Shen, Wei Feng, Fuyou Li
Nanomedicine has attracted substantial attention for the accurate diagnosis or treatment of carcinoma in recent years. Nd(3+)-doped lanthanide nanophosphor-based near-infrared-II (NIR-II) optical imaging is widely used for deep penetration tissue imaging while X-ray computed tomography (CT) is well-suited for in vivo imaging. Polymer-coated lanthanide nanophosphors are increasingly used in both diagnostics and therapies for tumor in vivo. However, the biocompatibility of nanocomposites and the efficiency of tumor ablation should be taken into consideration when constructing a nanotheranostic probe...
August 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28704186/comparative-characteristics-of-napsin-a-ttf-1-and-egfr-mutation-expression-in-mucinous-lung-cell-carcinomas
#11
Sylvia N Genova, Veselin T Belovezhdov, Stoyan N Bichev, Vladimir H Danev
BACKGROUND: Invasive mucinous lung adenocarcinomas are rare and account for 2%-10% of all lung adenocarcinoma cases. It is believed that Napsin A exhibits a weaker expression in mucinous adenocarcinomas compared with TTF1, but such correlation is still poorly researched. AIM: The aim of the study was to determine the frequency of mucinous to nonmucinous adenocarcinomas and compare specificity and sensitivity of monoclonal Napsin A with TTF1 in mucinous adenocarcinomas and define the frequency of EGFR mutations...
June 1, 2017: Folia Medica
https://www.readbyqxmd.com/read/28685231/hybrid-polymeric-protein-nano-carriers-hppnc-for-targeted-delivery-of-tgf%C3%AE-inhibitors-to-hepatocellular-carcinoma-cells
#12
Nemany A N Hanafy, Alessandra Quarta, Riccardo Di Corato, Luciana Dini, Concetta Nobile, Vittorianna Tasco, Sonia Carallo, Mariafrancesca Cascione, Andrea Malfettone, Jitka Soukupova, Rosaria Rinaldi, Isabel Fabregat, Stefano Leporatti
TGFβ1 pathway antagonists have been considered promising therapies to attenuate TGFβ downstream signals in cancer cells. Inhibiting peptides, as P-17 in this study, are bound to either TGFβ1 or its receptors, blocking signal transduction. However, for efficient use of these TGFβ1antagonist as target therapeutic tools, improvement in their delivery is required. Here, a plasmid carrying specific shDNA (SHT-DNA), small interfering RNA (siRNA), and the peptide (P-17) were loaded separately into folic acid (FA)-functionalized nano-carriers made of Bovine Serum Albumin (BSA)...
August 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28649842/lipo-oligomer-nanoformulations-for-targeted-intracellular-protein-delivery
#13
Peng Zhang, Benjamin Steinborn, Ulrich Lächelt, Stefan Zahler, Ernst Wagner
Here, we report novel lipo-oligoaminoamide nanoformulations for targeted intracellular protein delivery. Formulations are generated by first bioreversibly conjugating a sequence-defined amphiphilic lipo-oligomer 728 to the cargo protein via disulfide bonds, followed by formulation of the formed 728-SS-protein conjugate with different helper lipids in various compositions. The triblock oligoaminoamide 728 contains cysteines for reversible covalent protein conjugation and cross-link-stabilization of formed nanoparticles, polyethylene glycol (PEG) for shielding, and providing a hydrophilic domain, eight cationizable succinoyl tetraethylene pentamine (Stp) repeats for endosomal buffering and escape into the cytosol, and a tetra-oleic acid block for hydrophobic stabilization...
July 10, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28534695/wound-healing-activity-of-pluchea-indica-leaf-extract-in-oral-mucosal-cell-line-and-oral-spray-formulation-containing-nanoparticles-of-the-extract
#14
Wiphupat Buranasukhon, Sirivan Athikomkulchai, Sarin Tadtong, Chuda Chittasupho
CONTEXT: Pluchea indica (L.) Less (Asteraceae) is an herb used as a traditional medicine for wound healing. The chemical compounds found in Pluchea indica leaves are phenolic acids, flavonoids, anthocyanins and carotenoids. OBJECTIVE: This study investigates the effect of Pluchea indica leaf ethanol extract and its nanoparticles (NPs) on cytotoxicity, cell survival and migration of human oral squamous carcinoma cell line. MATERIALS AND METHODS: Cell viability was measured using MTT assay to assess the effect of Pluchea indica leaf extract and NPs (1-500 μg/mL) on cytotoxicity and cell survival...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28523326/hashimoto-s-thyroiditis-associated-with-thyroid-adenoma-with-h%C3%A3-rthle-cells-case-report
#15
Mihaela Stanciu, Liana Gabriela Bera, Mihaela Popescu, Florin Grosu, Florina Ligia Popa
Chronic thyroiditis may present a focal lesion, often-palpable abnormality, simulating nodular disease. The number and morphology of the Hürthle cells (HC) vary in the thyroid aspirate. Distinguishing between neoplastic and non-neoplastic HC lesions is difficult when using the fine-needle aspiration cytology (FNAC). We present the case of a 46-year-old female with a large right nodular goiter and hypothyroidism and high titer of anti-thyroid peroxidase antibody (TPO). The thyroid ultrasound showed a large well-defined nodule (more than 6...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28506051/-a-case-of-thyroid-like-follicular-carcinoma-of-the-kidney
#16
REVIEW
Katsuhiro Ito, Hiromitsu Negoro, Masashi Kubota, Hideaki Takada, Toshihiro Magaribuchi, Atsuro Sawada, Shusuke Akamatsu, Takashi Kobayashi, Naoki Terada, Toshinari Yamasaki, Takahiro Inoue, Tomomi Kamba, Yuki Teramoto, Osamu Ogawa
A 51-year-oldwoman with a right renal mass was referredto our hospital. Computedtomographic (CT) scan demonstrated a 30 mm-diameter renal mass with delayed enhancement. She underwent a robotassistedlaparoscopic right partial nephrectomy. The pathological examination showedthat tumor cells with eosinophilic, clear cytoplasm formedtubules of various sizes containing colloid-like material, which resembled the findings of thyroidfollicular carcinoma. The tumor was immunoreactive for vimentin andcytokeratin (CK) 7, whereas it lackedreactivity for thyroidtranscription factor-1 (TTF-1) or thyroglobulin...
April 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28492062/intraoperative-injection-of-technetium-99m-sulfur-colloid-for-sentinel-lymph-node-biopsy-in-breast-cancer-patients-a-single-institution-experience
#17
Julian Berrocal, Lawrence Saperstein, Baiba Grube, Nina R Horowitz, Anees B Chagpar, Brigid K Killelea, Donald R Lannin
Background. Most institutions require a patient undergoing sentinel lymph node biopsy to go through nuclear medicine prior to surgery to be injected with radioisotope. This study describes the long-term results using intraoperative injection of radioisotope. Methods. Since late 2002, all patients undergoing a sentinel lymph node biopsy at the Yale-New Haven Breast Center underwent intraoperative injection of technetium-99m sulfur colloid. Endpoints included number of sentinel and nonsentinel lymph nodes obtained and number of positive sentinel and nonsentinel lymph nodes...
2017: Surgery Research and Practice
https://www.readbyqxmd.com/read/28479907/diagnostic-accuracy-of-fine-needle-aspiration-cytology-in-patients-undergoing-thyroidectomy-in-uganda-tertiary-hospital-experience
#18
Robert Masereka, Paul K Okeny, Jane O Fualal, Dan Wamala
BACKGROUND: Thyroid disease affects about 5% of the World's population. Fine Needle Aspiration Cytology (FNAC) helps in planning extent of surgery. In some studies, FNAC has been found to have a low accuracy for malignancy. OBJECTIVES: To estimate the sensitivity and specificity of FNAC in detecting malignancy for thyroid disease using histopathology as the gold standard. METHODS: Patients who underwent clinical and laboratory evaluation and thyroidectomy at Mulago National Referral hospital and the Pathology department of Makerere University College of Health Sciences were consecutively recruited over a four months period...
December 2016: African Health Sciences
https://www.readbyqxmd.com/read/28476089/antitumor-activity-of-alloy-and-core-shell-type-bimetallic-agau-nanoparticles
#19
Igor Shmarakov, Iuliia Mukha, Nadiia Vityuk, Vira Borschovetska, Nelya Zhyshchynska, Galyna Grodzyuk, Anna Eremenko
Nanoparticles (NPs) of noble metals, namely gold and silver, remain promising anticancer agents capable of enhancing current surgery- and chemotherapeutic-based approaches in cancer treatment. Bimetallic AgAu composition can be used as a more effective agent due to the synergetic effect. Among the physicochemical parameters affecting gold and silver nanoparticle biological activity, a primary concern relates to their size, shape, composition, charge, etc. However, the impact of metal components/composition as well as metal topological distribution within NPs is incompletely characterized and remains to be further elucidated and clarified...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28413203/nuclear-morphometry-and-texture-analysis-on-cytological-smears-of-thyroid-neoplasms-a-study-of-50-cases
#20
L Deka, S Gupta, R Gupta, K Gupta, C J Kaur, S Singh S
BACKGROUND: Fine needle aspiration cytology (FNAC) is a reliable and reproducible diagnostic technique for thyroid lesions with certain limitations. Computed morphometric methods have been introduced with a view to improve the diagnostic yield of thyroid aspirates. However, a review of the existing literature revealed conflicting reports regarding morphometric parameters in thyroid neoplasms. MATERIALS AND METHODS: This study included 50 cases of thyroid lesions (20 cases of colloid goitre, 15 of follicular adenoma, 5 of follicular carcinoma and 10 papillary carcinomas)...
April 2017: Malaysian Journal of Pathology
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