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https://www.readbyqxmd.com/read/28917533/nanoparticles-of-a-polyaspartamide-based-brush-copolymer-for-modified-release-of-sorafenib-in-vitro-and-in-vivo-evaluation
#1
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 13, 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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
https://www.readbyqxmd.com/read/28365423/evaluation-of-theranostic-nanocarriers-for-near-infrared-imaging-and-photodynamic-therapy-on-human-prostate-cancer-cells
#15
Fernanda Z Leandro, Júlia Martins, Aparecida M Fontes, Antonio C Tedesco
This paper evaluates how effectively chloroaluminum phthalocyanine (ClAlPc) entrapped in colloidal nanocarriers, such as nanocapsule (NC) and nanoemulsion (NE), induces photodamage in human prostate cancer cells (LNCaP) during photodynamic therapy (PDT). The MTT cell viability assay showed that both ClAlPc-NC and ClAlPc-NE induced phototoxicity and efficiently killed LNCaP cells at low ClAlPc-NC and ClAlPc-NE concentrations (0.3μgmL(-1)) as well as under low light doses of 4Jcm(-2) and 7Jcm(-2), respectively, upon PDT with a 670-nm diode laser line...
June 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28335220/pde5-inhibitors-loaded-nanovesicles-physico-chemical-properties-and-in-vitro-antiproliferative-activity
#16
Roberta F De Rose, Maria Chiara Cristiano, Marilena Celano, Valentina Maggisano, Ada Vero, Giovanni Enrico Lombardo, Martina Di Francesco, Donatella Paolino, Diego Russo, Donato Cosco
Novel therapeutic approaches are required for the less differentiated thyroid cancers which are non-responsive to the current treatment. In this study we tested an innovative formulation of nanoliposomes containing sildenafil citrate or tadalafil, phosphodiesterase-5 inhibitors, on two human thyroid cancer cell lines (TPC-1 and BCPAP). Nanoliposomes were prepared by the thin layer evaporation and extrusion methods, solubilizing the hydrophilic compound sildenafil citrate in the aqueous phase during the hydration step and dissolving the lipophilic tadalafil in the organic phase...
May 18, 2016: Nanomaterials
https://www.readbyqxmd.com/read/28331738/sentinel-node-biopsy-in-special-histologic-types-of-invasive-breast-cancer
#17
Montserrat Solà, Mireia Recaj, Eva Castellà, Pere Puig, Josep Maria Gubern, Juan Francisco Julian, Manel Fraile
OBJECTIVE: To assess the feasibility of sentinel node biopsy (SNB) in ductal and lobular invasive breast cancer, a group of tumors known as special histologic type (SHT) of breast cancer. MATERIALS AND METHODS: Between January 1997 and July 2008, 2253 patients from 6 affiliated hospitals underwent SNB who had early breast cancer and clinically negative axilla. The patients' data were collected in a multicenter database. For lymphatic mapping, all patients received an intralesional dose of radiocolloid Tc-99m (4mCi in 0...
April 2016: Journal of Breast Health (2013)
https://www.readbyqxmd.com/read/28328844/clinicopathological-study-on-thyroid-follicular-carcinoma-like-renal-tumor-related-to-serious-hypertension-case-report-and-review-of-the-literature
#18
Hui Wang, Jianpeng Yu, Zhonghua Xu, Gang Li
RATIONALE: Thyroid carcinoma-like tumor of the kidney (TLFCK) is an extremely rare variant of renal cell carcinoma. Most cases were incidentally found, while we report the first case of TLFCK presented with hypertension. PATIENT CONCERNS: A 25-year-old woman was admitted to our hospital presenting with hypertension for ∼20 months, without gross hematuria, weight loss, and flank pain. DIAGNOSES: Imaging studies revealed a right renal mass with multiple calcifications...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28315424/diagnostic-criteria-for-oncocytic-renal-neoplasms-a-survey-of-urologic-pathologists
#19
Sean R Williamson, Ramya Gadde, Kiril Trpkov, Michelle S Hirsch, John R Srigley, Victor E Reuter, Liang Cheng, L Priya Kunju, Ravi Barod, Craig G Rogers, Brett Delahunt, Ondrej Hes, John N Eble, Ming Zhou, Jesse K McKenney, Guido Martignoni, Stewart Fleming, David J Grignon, Holger Moch, Nilesh S Gupta
Renal oncocytoma and chromophobe renal cell carcinoma have been long recognized as distinct tumors; however, it remains unknown if uniform diagnostic criteria are used to distinguish these tumor types in practice. A survey was distributed to urologic pathologists regarding oncocytic tumors. Responses were received from 17 of 26 invitees. Histologically, more than 1 mitotic figure was regarded as most worrisome (n=10) or incompatible (n=6) with oncocytoma diagnosis. Interpretation of focal nuclear wrinkling, focal perinuclear clearing, and multinucleation depended on extent and did not necessarily exclude oncocytoma if minor...
May 2017: Human Pathology
https://www.readbyqxmd.com/read/28224716/fine-needle-aspiration-cytology-of-the-papillary-thyroid-carcinoma-with-a-solid-component-a-cytological-and-clinical-correlation
#20
Ryuji Ohashi, Yukihiro Murase, Miyuki Matsubara, Yasuhiko Watarai, Takehito Igarashi, Iwao Sugitani, Zenya Naito
BACKGROUND: Solid variant of papillary thyroid carcinoma is a rare subtype of papillary thyroid carcinoma (PTC) containing a solid component (SC), and thus its cytological and clinicopathological features remain elusive. We examined fine needle aspiration (FNA) cytological features of PTC with variable degrees of SC (20-80% of the tumor)(PTCSC) in comparison to well-differentiated PTC (WPTC). METHODS: Twenty-six cases of PTCSC were histologically stratified into major-SC (SC >50% of the tumor) and minor-SC (<49%) groups...
May 2017: Diagnostic Cytopathology
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