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https://www.readbyqxmd.com/read/27910712/development-of-a-nanogel-formulation-for-transdermal-delivery-of-tenoxicam-a-pharmacokinetic-pharmacodynamic-modeling-approach-for-quantitative-prediction-of-skin-absorption
#1
Mohammed H Elkomy, Shahira F El Menshawe, Hussein M Eid, Ahmed M A Ali
This study investigates potentials of solid lipid nanoparticles (SLN) based gel for transdermal delivery of tenoxicam (TNX) and describes a pharmacokinetics-pharmacodynamics (PK-PD) modeling approach for predicting concentration-time profile in skin. A 2(3) factorial design was adopted to study the effect of formulation factors on SLN properties and determine the optimal formulation. SLN-gel tolerability was investigated using rabbit skin irritation test. Its anti-inflammatory activity was assessed by carrageenan induced rat paw edema test...
December 2, 2016: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/27910222/cyclic-vomiting-syndrome-is-characterized-by-altered-functional-brain-connectivity-of-the-insular-cortex-a-cross-comparison-with-migraine-and-healthy-adults
#2
D-M Ellingsen, R G Garcia, J Lee, R L Lin, J Kim, A H Thurler, S Castel, L Dimisko, B R Rosen, N Hadjikhani, B Kuo, V Napadow
Cyclic Vomiting Syndrome (CVS) has been linked to episodic migraine, yet little is known about the precise brain-based mechanisms underpinning CVS, and whether these associated conditions share similar pathophysiology. We investigated the functional integrity of salience (SLN) and sensorimotor (SMN) intrinsic connectivity networks in CVS, migraine and healthy controls using brain functional Magnetic Resonance Imaging. CVS, relative to both migraine and controls, showed increased SLN connectivity to middle/posterior insula, a key brain region for nausea and viscerosensory processing...
December 1, 2016: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/27906144/positive-regulation-of-biochemical-parameters-by-tea-polyphenol-encapsulated-solid-lipid-nanoparticles-at-in-vitro-and-in-vivo-conditions
#3
Karikalan Kulandaivelu, Abul Kalam Azad Mandal
Tea polyphenols (TPPs) comprise preventive and therapeutic potentials against cancer, cardiovascular and neurological disorders. Chemical instability of TPP which leads to low bioavailability is the major constrain to its use as therapeutic agent. The authors prepared TPP encapsulated solid lipid nanoparticles (TPP-SLNs) to increase its stability and bioefficacy. Comparison of Fourier transformed infrared spectra of unloaded SLN, free TPP and TPP-SLN indicated encapsulation of TPP. Sustained release of TPP from TP-SLN was observed...
December 2016: IET Nanobiotechnology
https://www.readbyqxmd.com/read/27905950/use-of-indocyanine-green-and-the-hypereye-system-for-detecting-sentinel-lymph-nodes-in-breast-cancer-within-a-population-of-european-patients-a-pilot-study
#4
Oldřich Coufal, Vuk Fait
BACKGROUND: Certain studies suggest that using indocyanine green (ICG) could be comparable with using radioisotopes (RI) in detecting sentinel lymph nodes (SLNs) in breast cancer. A number of these studies were performed in Asia. The objective of our pilot study was to evaluate within a European population of breast cancer patients the detection rate of SLNs using ICG and the HyperEye system and the concordance in SLNs detected using this method and the standard method involving RI and a gamma probe...
December 1, 2016: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27904514/intraoperative-diagnosis-of-sentinel-lymph-node-metastases-in-breast-cancer-treatment-with-one-step-nucleic-acid-amplification-assay-osna
#5
Paweł Szychta, Bogusław Westfal, Rafał Maciejczyk, Beata Smolarz, Hanna Romanowicz, Tomasz Krawczyk, Marek Zadrożny
INTRODUCTION: The aim of the study was to evaluate the clinical usefulness of a one-step nucleic acid amplification assay (OSNA) for intraoperative detection of metastases to sentinel lymph nodes (SLNs) in comparison to examination of frozen sections, and to summarize the results of previous studies. MATERIAL AND METHODS: We enrolled 98 patients aged 58.13 ±10.74 years treated surgically for breast cancer, and 99 biopsies of SLNs were followed by analysis of 105 SLNs...
December 1, 2016: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/27900818/healthcare-costs-reduced-after-incorporating-the-results-of-the-american-college-of-surgeons-oncology-group-z0011-trial-into-clinical-practice
#6
Michelle M Fillion, Katherine E Glass, Joe Hayek, Allison Wehr, Gary Phillips, Alicia Terando, Doreen M Agnese
The purpose of our study was to quantitate the changes in axillary lymph node dissection (ALND), frozen section (FS), and the impact on costs after the publication of the American College of Surgeons Oncology Group (ACOSOG) Z0011 trial. We compared axillary nodal management and cost data in breast cancer patients who met Z0011 criteria and were treated with lumpectomy and sentinel lymph nodes (SLN) biopsy from 2007 to July 2013. Of 800 patients, 67 (13.5%) and 34 (12.5%) patients in the pre- and post-Z0011 era had 1-2 positive SLN...
November 30, 2016: Breast Journal
https://www.readbyqxmd.com/read/27896515/outcome-after-sentinel-lymph-node-dissection-in-vulvar-cancer-a-subgroup-analysis-of-the-ago-care-1-study
#7
Rüdiger Klapdor, Peter Hillemanns, Linn Wölber, Julia Jückstock, Felix Hilpert, Nikolaus de Gregorio, Severine Iborra, Jalid Sehouli, Anika Habermann, Sophie Teresa Fürst, Hans Georg Strauß, Klaus Baumann, Falk Thiel, Alexander Mustea, Werner Meier, Philipp Harter, Pauline Wimberger, Lars Hanker, Barbara Schmalfeldt, Ulrich Canzler, Tanja Fehm, Alexander Luyten, Martin Hellriegel, Jens Kosse, Christoph Heiss, Peer Hantschmann, Peter Mallmann, Berno Tanner, Jacobus Pfisterer, Barbara Richter, Martin Jäger, Sven Mahner
PURPOSE: Analyzing the large patient cohort of the multicenter AGO-CaRE-1 study, we compared isolated sentinel lymph node dissection (SLND) with radical lymph node dissection (LND) of the groin in relation to recurrence rates and survival. METHODS: The AGO-CaRE-1 study retrospectively collected data on treatment patterns and follow-up of vulvar cancer patients [International Federation of Gynecology and Obstetrics (FIGO) stage ≥1B] treated at 29 gynecologic cancer centers between 1998 and 2008...
November 28, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27894166/the-detection-of-sentinel-lymph-nodes-in-laparoscopic-surgery-for-uterine-cervical-cancer-using-99m-technetium-tin-colloid-indocyanine-green-and-blue-dye
#8
Tomohito Tanaka, Yoshito Terai, Keisuke Ashihara, Satoshi Tsunetoh, Hiroyuki Akagi, Takashi Yamada, Masahide Ohmichi
OBJECTIVE: Our objective was to determine the feasibility and detection rates and clarify the most effective combination of injected tracer types for sentinel lymph node (SLN) mapping in uterine cervical cancer in patients who have undergone laparoscopic surgery or neoadjuvant chemotherapy (NAC). METHODS: A total of 119 patients with cervical cancer underwent SLN biopsy at radical hysterectomy using three types of tracers. The various factors related to side-specific detection rate, sensitivity, and false negative (FN) rate were analyzed...
November 1, 2016: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/27893540/eight-years-experience-of-sentinel-lymph-node-biopsy-in-melanoma-using-lymphoscintigraphy-and-gamma-probe-detection-after-radiocolloid-mapping
#9
Nathalie Pham Dang, Sophie Cassier, Aurélien Mulliez, Sandrine Mansard, Michel DʼIncan, Isabelle Barthélémy
BACKGROUND: Isosulfan blue dye peripheral injection is used in preoperative sentinel lymph node (SLN) identification alone or, to increase sensitivity, in conjunction with radiocolloid mapping. However, isosulfan blue dye has certain drawbacks and limitations. OBJECTIVE: This study assesses the authors' experience of SLN biopsy using only radiocolloid tracer. MATERIALS AND METHODS: Between 2000 and 2008, 218 patients underwent SLN biopsy with radiocolloid mapping, preoperative localization by lymphoscintigraphy and intraoperative confirmation by gamma probe in primary malignant cutaneous melanoma...
November 23, 2016: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27892713/hydrophobic-ion-pairing-as-a-strategy-to-improve-drug-encapsulation-into-lipid-nanocarriers-for-the-cancer-treatment
#10
Mariana Silva Oliveira, Gisele Castro Assis Goulart, Lucas Antônio Miranda Ferreira, Guilherme Carneiro
Incorporation of anticancer drugs with low lipophilicity in lipid nanocarriers is usually low, which limits the utilization of this strategy in cancer therapy. However, the complexation of these drugs with lipophilic ion pairs containing ionizable groups has been reported to improve their incorporation in nanocarriers such as solid lipid nanoparticles (SLNs), nanostructured lipid nanocarriers (NLCs), and nanoemulsions (NEs). Therefore, those nanocarriers have shown an increase in efficacy and lower toxicity compared with the free drugs, particularly if the counter ion utilized has anticancer activity...
November 28, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27888498/chitosan-nanolayered-cisplatin-loaded-lipid-nanoparticles-for-enhanced-anticancer-efficacy-in-cervical-cancer
#11
Jing-Yi Wang, Yu Wang, Xia Meng
In this study, cisplatin (CDDP)-loaded chitosan-coated solid lipid nanoparticles (SLN) was successfully formulated to treat HeLa cervical carcinoma. The formulation nanoparticles were nanosized and exhibited a controlled release of drug in physiological conditions. The blank nanoparticles exhibited an excellent biocompatibility profile indicating its suitability for cancer targeting. The incorporation of CDDP in SLN remarkably increased the cancer cell death as evident from the MTT assay. Importantly, CDDP-loaded chitosan-coated SLN (CChSLN) significantly (P < 0...
December 2016: Nanoscale Research Letters
https://www.readbyqxmd.com/read/27884712/solid-lipid-nanoparticles-for-sustained-pulmonary-delivery-of-yuxingcao-essential-oil-preparation-characterization-and-in-vivo-evaluation
#12
Yun Zhao, Yue-Xing Chang, Xiao Hu, Chun-Yu Liu, Li-Hui Quan, Yong-Hong Liao
The objective of this study was to prepare solid lipid nanoparticles (SLNs) for sustained pulmonary delivery of Yuxingcao essential oil (YEO). Three YEO loaded SLNs (SLN-200, SLN-400 and SLN-800) with different particle size were prepared and separated following a high-shear homogenization technique using Compritol 888 ATO as lipid and polyvinyl alcohol as an emulsifier. The particle size, zeta potential, drug encapsulation efficiency and drug loading of the SLNs were determined to be between 171 and 812nm, -17...
November 21, 2016: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/27882780/solid-lipid-nanoparticles-and-nanostructured-lipid-carrier-based-nanotherapeutics-in-treatment-of-psoriasis-a-comparative-study
#13
Rhythm Arora, Sameer S Katiyar, Varun Kushwah, Sanyog Jain
BACKGROUND: The present work focuses on the development of ultra-small solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) encapsulating cyclosporine and calcipotriol, further incorporated into gel, increasing their penetration through the skin. RESEARCH DESIGN AND METHODS: Developed SLN and NLC were characterized regarding particle size, zeta potential, %entrapment efficiency and dispersed into carbopol 934P-NF gel. Gel was further characterized for rheological behavior and spreadability...
November 24, 2016: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/27882757/-contribution-of-sentinel-lymph-node-biopsy-to-treatment-of-locally-advanced-stages-of-cervical-cancers
#14
J Sláma, M Zikán, D Fischerová, R Kocián, A Germanová, F Frühauf, D Cibula
OBJECTIVE: Usage of sentinel lymph-node (SLN) concept in locally advanced cervical cancers might help to individualise management. According to SLN status could be patients refered to neoadjuvant chemotherapy (NAC) with subsequent surgery or to primary chemoradiation. The aim of our study was to evaluate sensitivity of SLN detection in locally advanced cervical cancers and to assess the impact of NAC on frequency of their metastatic involvement. DESIGN: Retrospective clinical study...
2016: Ceská Gynekologie
https://www.readbyqxmd.com/read/27882235/intraoperative-molecular-analysis-of-sentinel-lymph-nodes-following-neoadjuvant-chemotherapy-in-patients-with-clinical-node-negative-breast-cancer-an-institutional-study
#15
David Parada, Karla B Peña, F Francesc Riu, A Esther Aguilar, Sebastian Cohan
Sentinel lymph node biopsy (SLNB) is an accurate, safe method for determining the axillary lymph node status. However, insufficient evidence exists to support the recommendation of SLNB in patients who have had neoadjuvant chemotherapy (NAC) to downsize tumours and allow for breast conservation surgery. The present study aimed to use molecular approaches to evaluate the feasibility and accuracy of SLNB in patients treated with NAC prior to SLN mapping and surgery. A total of 50 consecutive patients with operable invasive breast carcinomas who had received prior NAC were assessed using the one-step nucleic acid amplification (OSNA) method...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27876425/how-can-lipid-nanocarriers-improve-transdermal-delivery-of-olanzapine
#16
Nimra Iqbal, Carla Vitorino, Kevin M G Taylor
The development of a transdermal nanocarrier drug delivery system with potential for the treatment of psychiatric disorders, such as schizophrenia and bipolar disorder, is described. Lipid nanocarriers (LN), encompassing various solid:liquid lipid compositions were formulated and assessed as potential nanosystems for transdermal delivery of olanzapine. A previously optimized method of hot high pressure homogenization (HPH) was adopted for the production of the LN, which comprised solid lipid nanoparticles (SLN), nanostructured lipid carriers (NLC) and nanoemulsions (NE)...
November 23, 2016: Pharmaceutical Development and Technology
https://www.readbyqxmd.com/read/27872522/sentinel-lymph-node-biopsy-in-n0-neck-for-squamous-cell-carcinoma-of-oral-cavity-a-prospective-study
#17
K Shivakumar, Goel Vipin, Manjunath Suraj, B V Rajaram, Ramesh Rakesh, A Anuradha, K Hemanth
Oral cancers in India are very common. SLNB (sentinel lymph node biopsy) for the management of the cN0 neck provides proper staging with less morbidity. The study aims at assessment of the technical feasibility and accuracy of SLNB. Two by two table and Kappa statistic was used to compare SLN and END. In 14 cases out of 16 cases, SLN was identified. Sensitivity and specificity of 100 % were found. One hundred percent agreement was observed between SLN and END using kappa statistics. A meta-analysis of 19 studies showed 97...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27871836/sentinel-lymph-node-assessment-in-endometrial-cancer-a-systematic-review-and-meta-analysis
#18
REVIEW
Anna Jo Bodurtha Smith, Amanda Nickles Fader, Edward J Tanner
BACKGROUND: In the staging of endometrial cancer, controversy remains regarding the role of sentinel lymph node mapping compared with other nodal assessment strategies. OBJECTIVE: We conducted a systematic review to evaluate the diagnostic accuracy and clinical impact of sentinel lymph node mapping in the management of endometrial cancer. DATA SOURCES: We searched Medline, Embase, and the Cochrane Central Registry of Controlled trials for studies published in English before March 25, 2016 (PROSPERO CRD42016036503)...
November 18, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27870709/groin-recurrences-in-node-negative-vulvar-cancer-patients-after-sole-sentinel-lymph-node-dissection
#19
Rüdiger Klapdor, Hermann Hertel, Philipp Soergel, Peter Hillemanns
OBJECTIVE: This study aimed to evaluate the recurrence rates after sole sentinel dissection in vulvar cancer and describe characteristics of groin recurrences. METHODS: All vulvar cancer cases between 2008 and 2014 were reviewed. Inclusion criteria were restricted to lymph node-negative patients, sole sentinel lymph node dissection (SLND), and tumor diameter less than 4 cm. In all patients, Tc-99m nanocolloid was used for preoperative SLN imaging. Regularly, planar lymphoscintigraphy and single-photon emission computed tomography with computed tomography were performed...
November 17, 2016: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/27864624/sentinel-lymph-node-biopsy-using-indocyanine-green-fluorescence-in-early-stage-breast-cancer-a-meta-analysis
#20
REVIEW
Tomoharu Sugie, Takafumi Ikeda, Atsushi Kawaguchi, Akira Shimizu, Masakazu Toi
Sentinel lymph node (SLN) biopsy using indocyanine green (ICG) fluorescence is safe and has a high detection rate for SLNs. However, the results of this novel technique are heterogeneous. The objective of this meta-analysis was to evaluate the diagnostic performance of the ICG fluorescence method compared with the standard radioisotope (RI) method. All eligible studies were identified from 2005 through 2015. A proportion meta-analysis was performed using a fixed effects and/or random effects model based on the study heterogeneity...
November 19, 2016: International Journal of Clinical Oncology
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