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https://www.readbyqxmd.com/read/28229944/development-and-in-vivo-evaluation-of-an-innovative-hydrochlorothiazide-in-cyclodextrins-in-solid-lipid-nanoparticles-formulation-with-sustained-release-and-enhanced-oral-bioavailability-for-the-hypertension-treatment-in-pediatrics
#1
Marzia Cirri, Natascia Mennini, Francesca Maestrelli, Paola Mura, Carla Ghelardini, Lorenzo di Cesare Mannelli
An innovative pediatric oral formulation of hydrochlorothiazide (HCT) (2mg/mL), endowed with improved bioavailability and sustained release properties and suitable for the hypertension treatment in pediatric patients, was developed by combining the drug-cyclodextrin complexation and the incorporation of the complex into Solid Lipid Nanoparticles (SLN). Precirol(®)ATO5-based SLN, with two different surfactants (Pluronic(®)F68 and Tween(®)80) loaded with the drug as such or as binary system with hydroxypropyl-beta-cyclodextrin (HPβCd) and sulfobutyl-ether-beta-cyclodextrin (SBEβCd) both as physical mixture (P...
February 13, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28228079/lipid-based-nanoparticles-as-carriers-for-dermal-delivery-of-antioxidants
#2
Lucia Montenegro
The skin, being the outermost layer of our body, is constantly exposed to oxidative stress induced by UV-radiation, pollutants, smoke and xenobiotics. To counteract the deleterious effects of such exposure, the skin is equipped with a complex anti-oxidation system, involving both exogenous and endogenous antioxidants. As low molecular weight antioxidants undergo depletion in counteracting oxidative stress occurring in the skin, topical supplementation with these agents is regarded as a suitable strategy to restore skin oxidative balance...
February 22, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28224384/swedish-prospective-multicenter-trial-evaluating-sentinel-lymph-node-biopsy-after-neoadjuvant-systemic-therapy-in-clinically-node-positive-breast-cancer
#3
Linda Holmstrand Zetterlund, Jan Frisell, Athanasios Zouzos, Rimma Axelsson, Thomas Hatschek, Jana de Boniface, Fuat Celebioglu
PURPOSE: Patients with clinically node-positive breast cancer planned for neoadjuvant systemic therapy (NAST) may draw advantages from the nodal downstaging effect and reduce the extent of axillary surgery with sentinel lymph node biopsy (SLNB) performed after NAST. Since there are concerns about lower sentinel lymph node (SLN) detection and higher false-negative rates (FNR) in this setting, our aim was to define the accuracy of SLNB after NAST. METHODS: This Swedish national multicenter trial prospectively recruited 195 breast cancer patients from ten hospitals with T1-T4d biopsy-proven node-positive disease planned for NAST between October 1, 2010 and December 31, 2015...
February 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28224364/the-impact-of-smoking-on-sentinel-node-metastasis-of-primary-cutaneous-melanoma
#4
Maris S Jones, Peter C Jones, Stacey L Stern, David Elashoff, Dave S B Hoon, John Thompson, Nicola Mozzillo, Omgo E Nieweg, Dirk Noyes, Harald J Hoekstra, Jonathan S Zager, Daniel F Roses, Alessandro Testori, Brendon J Coventry, Mark B Smithers, Robert Andtbacka, Doreen Agnese, Erwin Schultz, Eddy C Hsueh, Mark Kelley, Schlomo Schneebaum, Lisa Jacobs, Tawnya Bowles, Mohammed Kashani-Sabet, Douglas Johnson, Mark B Faries
BACKGROUND: Although a well-established causative relationship exists between smoking and several epithelial cancers, the association of smoking with metastatic progression in melanoma is not well studied. We hypothesized that smokers would be at increased risk for melanoma metastasis as assessed by sentinel lymph node (SLN) biopsy. METHODS: Data from the first international Multicenter Selective Lymphadenectomy Trial (MSLT-I) and the screening-phase of the second trial (MSLT-II) were analyzed to determine the association of smoking with clinicopathologic variables and SLN metastasis...
February 21, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28220050/gynaecological-cancer-sln-staging-for-endometrial-cancer
#5
David Killock
No abstract text is available yet for this article.
February 21, 2017: Nature Reviews. Clinical Oncology
https://www.readbyqxmd.com/read/28215733/frozen-sections-in-patients-undergoing-breast-conserving-surgery-at-a-single-ambulatory-surgical-center-5-year-experience
#6
J M Jorns, S Daignault, M S Sabel, J L Myers, A J Wu
OBJECTIVES: To evaluate outcomes of our breast frozen section (FS) practice in its first 5 years, including our specialized FS of margins (FSM) procedure for breast conserving therapy (BCT) patients. METHODS: One thousand two hundred and forty eight patients undergoing 1303 breast FSM and/or sentinel lymph node (SLN) FS were included. Clinicopathologic features were assessed by chart review. RESULTS: Use of SLN FS declined, from 43.5% of FS cases before to 19...
February 6, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28214320/indocyanine-green-assisted-sentinel-lymph-node-biopsy-in-melanoma-using-the-fovis-system
#7
Daniela Göppner, Stephan Nekwasil, Anne Jellestad, Alexander Sachse, Karl-Heinz Schönborn, Harald Gollnick
BACKGROUND: Metastatic involvement of the sentinel lymph node (SLN) represents a key prognostic factor in melanoma. The combined use of a radiocolloid (technetium-99m) and blue dye is the gold standard in sentinel lymph node biopsy (SLNB). In this context, near-infrared (NIR) fluorescence imaging with indocyanine green (ICG) has been suggested as an alternative. The objective of the present study was to examine the potential advantages of fluorescence-guided SLNB - compared to the conventional method - with respect to the visualization of lymphatic drainage pathways and the SLN...
February 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28214300/sentinel-lymphknoten-biopsie-des-melanoms-mittels-indocyaningr%C3%A3-n-und-fovis-system
#8
Daniela Göppner, Stephan Nekwasil, Anne Jellestad, Alexander Sachse, Karl-Heinz Schönborn, Harald Gollnick
HINTERGRUND: Der Nachweis metastatischer Infiltrate im Sentinel-Lymphkoten (SLN) gilt als wesentlicher prognostischer Faktor des Melanoms. Alternativ zur Farbstoffmethode mit Patentblau zum Goldstandard der SLN-Biopsie (SLNB) mittels Radiokolloid wird die fluoreszenzoptische Darstellung mit Hilfe von Indocyaningrün (ICG) und Nahinfrarot (NIR)-Kamerasystem kommuniziert. Im Vergleich zur konventionellen Methode wurde die Wertigkeit des ICG-/NIR-Verfahrens in Abhängigkeit vom Body-Mass-Index (BMI) des Patienten und der Konzentration von ICG bezüglich der Visualisierung des Lymphabstroms und des SLNs untersucht...
February 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28213057/utilization-of-sentinel-lymph-node-biopsy-for-uterine-cancer
#9
Jason D Wright, Stephanie Cham, Ling Chen, William M Burke, June Y Hou, Ana I Tergas, Vrunda Desai, Jim C Hu, Cande V Ananth, Alfred I Neugut, Dawn L Hershman
BACKGROUND: To limit the potential short and long-term morbidity of lymphadenectomy, sentinel lymph node (SLN) biopsy has been proposed for endometrial cancer. The principle of SLN biopsy relies on removal of a small number of lymph nodes that are the first drainage basins from a tumor and thus the most likely to harbor tumor cells. While the procedure may reduce morbidity, efficacy data is limited and little is known about how commonly the procedure is performed. OBJECTIVE: We examined the patterns and predictors of use of SLN biopsy and outcomes of the procedure in women with endometrial cancer who underwent hysterectomy...
February 14, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28198675/predicting-disease-related-genes-using-integrated-biomedical-networks
#10
Jiajie Peng, Kun Bai, Xuequn Shang, Guohua Wang, Hansheng Xue, Shuilin Jin, Liang Cheng, Yadong Wang, Jin Chen
BACKGROUND: Identifying the genes associated to human diseases is crucial for disease diagnosis and drug design. Computational approaches, esp. the network-based approaches, have been recently developed to identify disease-related genes effectively from the existing biomedical networks. Meanwhile, the advance in biotechnology enables researchers to produce multi-omics data, enriching our understanding on human diseases, and revealing the complex relationships between genes and diseases...
January 25, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28196672/a-study-on-uterine-lymphatic-anatomy-for-standardization-of-pelvic-sentinel-lymph-node-detection-in-endometrial-cancer
#11
Barbara Geppert, Céline Lönnerfors, Michele Bollino, Anastasija Arechvo, Jan Persson
OBJECTIVE: To describe the anatomy of uterine lymphatic drainage following cervical or fundal tracer injection to enable standardization of a pelvic sentinel lymph node (SLN) concept in endometrial cancer (EC). METHODS: A prospective consecutive study of women with EC was conducted. A fluorescent dye (Indocyanine green) was injected into the cervix (n=60) or the uterine fundus (n=30). A systematic trans- and retroperitoneal mapping of uterine lymphatic drainage was performed...
February 10, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28192494/edible-solid-lipid-nanoparticles-sln-as-carrier-system-for-antioxidants-of-different-lipophilicity
#12
Kathleen Oehlke, Diana Behsnilian, Esther Mayer-Miebach, Peter G Weidler, Ralf Greiner
Ferulic acid (FA) and tocopherol (Toc) loaded solid lipid nanoparticles (SLN) were prepared by a hot homogenisation method. The particle size distribution, zeta potential and melting behaviour of the SLN as well as the stability, encapsulation efficiency and radical scavenging activity of FA and Toc in the SLN were analysed. The different formulations containing up to 2.8 mg g-1 of FA or Toc were stable during at least 15 weeks of storage at room temperature. Despite partial degradation and / or release of FA and Toc during storage, significant radical scavenging activity was maintained...
2017: PloS One
https://www.readbyqxmd.com/read/28188015/sensitivity-and-negative-predictive-value-for-sentinel-lymph-node-biopsy-in-women-with-early-stage-cervical-cancer
#13
Gloria Salvo, Pedro T Ramirez, Charles F Levenback, Mark F Munsell, Elizabeth D Euscher, Pamela T Soliman, Michael Frumovitz
OBJECTIVE: The role of sentinel lymph node (SLN) biopsy alone for staging of early-stage cervical cancer remains controversial. We aimed to determine the validity of this technique in women with early-stage cervical cancer. METHODS: We retrospectively reviewed women with early-stage cervical cancer who underwent SLN mapping followed by complete pelvic lymphadenectomy as part of initial surgical management from August 1997 through October 2015. All modes of surgical approach were included...
February 7, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28187209/a-cut-off-of-2150-cytokeratin-19-mrna-copy-number-in-sentinel-lymph-node-may-be-a-powerful-predictor-of-non-sentinel-lymph-node-status-in-breast-cancer-patients
#14
Irene Terrenato, Valerio D'Alicandro, Beatrice Casini, Letizia Perracchio, Francesca Rollo, Laura De Salvo, Simona Di Filippo, Franco Di Filippo, Edoardo Pescarmona, Marcello Maugeri-Saccà, Marcella Mottolese, Simonetta Buglioni
Since 2007, one-step nucleic acid amplification (OSNA) has been used as a diagnostic system for sentinel lymph node (SLN) examination in patients with breast cancer. This study aimed to define a new clinical cut-off of CK19 mRNA copy number based on the calculation of the risk that an axillary lymph node dissection (ALND) will be positive. We analyzed 1529 SLNs from 1140 patients with the OSNA assay and 318 patients with positive SLNs for micrometastasis (250 copies) and macrometastasis (5000 copies) underwent ALND...
2017: PloS One
https://www.readbyqxmd.com/read/28183820/sarcolipin-expression-is-not-required-for-the-mitochondrial-enzymatic-response-to-physical-activity-or-diet
#15
Daniel Gamu, Anton Trinh, Val A Farjado, Eric Bombardier, A Russell Tupling
In mice, transgenic manipulation of Ca(2+)-handling proteins is sufficient to alter the metabolic phenotype of muscle. We have previously shown that ablation of sarcolipin (SLN), a regulatory protein and uncoupler of sarco(endo)plasmic reticulum Ca(2+)-ATPases, leads to excessive diet-induced obesity and glucose intolerance in mice. However, it is unclear how loss of SLN per se affects muscle oxidative capacity and the ability of mitochondria to adapt to physiological stimuli such as exercise training or calorie overload...
February 9, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28181835/irinotecan-encapsulated-double-reverse-thermosensitive-nanocarrier-system-for-rectal-administration
#16
Fakhar Ud Din, Ju Yeon Choi, Dong Wuk Kim, Omer Mustapha, Dong Shik Kim, Raj Kumar Thapa, Sae Kwang Ku, Yu Seok Youn, Kyung Taek Oh, Chul Soon Yong, Jong Oh Kim, Han-Gon Choi
Intravenously administered for the treatment of rectum cancer, irinotecan produces severe side effects due to very high plasma concentrations. A novel irinotecan-encapsulated double reverse thermosensitive nanocarrier system (DRTN) for rectal administration was developed as an alternative. The DRTN was fabricated by dispersing the thermosensitive irinotecan-encapsulated solid lipid nanoparticles (SLN) in the thermosensitive poloxamer solution. Its gel properties, pharmacokinetics, morphology, anticancer activity and immunohistopathology were assessed after its rectal administration to rats and tumor-bearing mice...
November 2017: Drug Delivery
https://www.readbyqxmd.com/read/28181464/physicochemical-characterization-of-chitosan-hyaluronan-coated-solid-lipid-nanoparticles-for-the-targeted-delivery-of-paclitaxel-a-proof-of-concept-study-in-breast-cancer-cells
#17
Javier Campos, Manuel Varas-Godoy, Ziyad Samir Haidar
AIM: To investigate the potential of modified solid lipid nanoparticles (SLN) for the delivery of paclitaxel (PAX). MATERIALS & METHODS: SLN loaded with PAX were prepared via modified high-pressure hot homogenization. Formulation parameters were optimized to obtain a high-quality delivery system. SLN cores were coated, layer-by-layer, with a chitosan and hyaluronan (HA) shell. Selectivity toward HA receptors was tested in a breast cancer cell line, MCF-7. RESULTS: Stable and reproducible nano-sized and negatively charged nanoparticles resulted...
February 9, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28168389/can-clinically-node-negative-breast-cancer-patients-with-suspicious-axillary-lymph-nodes-at-ultrasound-but-negative-fine-needle-aspiration-be-approached-as-having-node-negative-disease
#18
Yue Liang, Xiaosong Chen, Weiwei Zhan, David H Garfield, Jiayi Wu, Ou Huang, Yafen Li, Li Zhu, Weiguo Chen, Kunwei Shen
BACKGROUND: Few data exist to elucidate whether patients with a suspicious axillary lymph node (ALN) at ultrasound but a negative fine-needle aspiration result (FNA group) can be managed as having ultrasound node-negative disease (AUN group). This study compared various ALN statuses between the AUN and FNA groups to guide further ALN management. METHODS: Patients who had clinical T1-2N0 breast cancer treated with sentinel lymph node (SLN) biopsy were retrospectively analyzed...
February 6, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28161984/formulation-of-piperine-solid-lipid-nanoparticles-sln-for-treatment-of-rheumatoid-arthritis
#19
M R Bhalekar, A R Madgulkar, Puja S Desale, Gyce Marium
The purpose of this work was to formulate piperine solid lipid nanoparticle (SLN) dispersion to exploit its efficacy orally and topically. Piperine-SLN were prepared by melt emulsification method and formula was optimized by the application of 3(2) factorial design. The nanoparticulate dispersion was evaluated for particle size, entrapment efficiency (EE) and zeta potential(ZP). Optimized batch (128.80 nm average size, 78.71% EE and -23.34 Mv Zeta Potential) was characterized for differential scanning calorimetry (DSC), X-ray diffraction(XRD) which revealed amorphous nature of piperine in SLN...
February 6, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28160702/safety-assessment-of-nanopesticides-using-the-roundworm-caenorhabditis-elegans
#20
Mauricio T Jacques, Jhones L Oliveira, Estefânia V R Campos, Leonardo F Fraceto, Daiana Silva Ávila
The extensive use of pesticides is causing environmental pollution, affecting animal organisms in different habitats and also leading human health at risk. In this study, we present as an alternative the use of nanoparticles loaded with pesticides and report their toxicological assessment to a soil organism, Caenorhabditis elegans. Three nanoparticle formulations were analyzed: solid lipid nanoparticles loaded or not with atrazine and simazine, SLN; polymeric nanoparticles, NC_PCL loaded with atrazine; and chitosan/tripolyphosphate, CS/TPP, loaded or not with paraquat...
February 1, 2017: Ecotoxicology and Environmental Safety
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