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https://www.readbyqxmd.com/read/28547178/clinical-impact-of-pet-ct-imaging-after-adjuvant-therapy-in-patients-with-oral-cavity-squamous-cell-carcinoma
#1
Huan-Chun Lin, Chung-Jan Kang, Shiang-Fu Huang, Hung-Ming Wang, Chien-Yu Lin, Li-Yu Lee, Chun-Ta Liao, Tzu-Chen Yen
PURPOSE: This single-center retrospective study of prospectively collected data was aimed at comparing the clinical outcomes of positron emission tomography/computed tomography (PET/CT) for patients with oral cavity squamous cell carcinoma (OSCC) with symptomatic recurrences identified by PET/CT imaging following adjuvant therapy (Group A) versus those of cases with asymptomatic recurrences diagnosed through periodic post-adjuvant therapy PET/CT surveillance (Group B). We also sought to establish the priority of salvage therapy in the two study groups...
May 26, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28538700/stability-profiles-and-therapeutic-effect-of-cu-zn-superoxide-dismutase-chemically-coupled-to-o-quaternary-chitosan-derivatives-against-dextran-sodium-sulfate-induced-colitis
#2
Nan Zhao, Zhaolong Feng, Meng Shao, Jichao Cao, Fengshan Wang, Chunhui Liu
Superoxide dismutase (SOD) has attracted considerable attention on treatment of reactive oxygen species (ROS)-related disorders. We previously conjugated Cu/Zn SOD to O-quaternary chitosan derivatives (O-HTCC) to yield a polymer-enzyme conjugate O-HTCC-SOD that demonstrated superior therapeutic effect to native SOD. The present study demonstrated that O-HTCC-SOD had wider pH activity range, better thermal stability, excellent long-term stability for storage, as well as unique reinstatement of activity exposure to proteolytic degradation that was helpful for longer half-life in vivo...
May 24, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28537769/the-ksr2-rs7973260-polymorphism-is-associated-with-metabolic-phenotypes-but-not-psychological-phenotypes-in-chinese-elders
#3
Yong Wang, Teng Ma, Yin-Sheng Zhu, Xue-Feng Chu, Shun Yao, Hong-Fei Wang, Jian Cai, Xiao-Feng Wang, Xiao-Yan Jiang
OBJECTIVE: To examine the associations between genetic variants KSR2 (kinase suppressor of RAS)-rs7973260, RAPGEF6 (guanine nucleotide exchange factor 6)-rs3756290, LOC105377703-rs4481363, and subjective well-being (SWB) and depressive symptoms (DSs) in Chinese elders, which were recently associated in a genome-wide association study conducted in Caucasians. The pleiotropic effects of KSR2-rs7973260 on metabolic phenotypes were also explored. MATERIALS AND METHODS: We used data of 1788 older individuals aged 70-84 years from the aging arm of the Rugao Longevity and Aging Study, a population-based cohort study conducted in the Jiangsu province of China...
May 24, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28536674/anti-idiotypic-antibodies-specific-to-prm-monoantibody-prevent-antibody-dependent-enhancement-of-dengue-virus-infection
#4
Miao Wang, Fan Yang, Dana Huang, Yalan Huang, Xiaomin Zhang, Chao Wang, Shaohua Zhang, Renli Zhang
Dengue virus (DENV) co-circulates as four serotypes (DENV1-4). Primary infection only leads to self-limited dengue fever. But secondary infection with another serotype carries a higher risk of increased disease severity, causing life-threatening dengue hemorrhagic fever/dengue shock syndrome (DHF/DSS). Serotype cross-reactive antibodies facilitate DENV infection in Fc-receptor-bearing cells by promoting virus entry via Fcγ receptors (FcγR), a process known as antibody dependent enhancement (ADE). Most studies suggested that enhancing antibodies were mainly specific to the structural premembrane protein (prM) of DENV...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28535907/suppression-of-epithelial-restitution-using-an-inhibitor-against-rho-associated-coiled-coil-containing-protein-kinase-aggravates-colitis-through-reduced-epithelial-expression-of-a-kinase-anchor-protein-13
#5
Yumi Kangawa, Toshinori Yoshida, Yutaka Yonezawa, Kiyoshi Maruyama, Shim-Mo Hayashi, Makoto Shibutani
In the gastrointestinal tract, the immediate healing response to mucosal damage is critical to sustain mucosal homeostasis. The migration of surrounding epithelial cells to cover the denuded area without proliferation is termed restitution, followed by early reparation of the damage. In this study, we determined the role of A-kinase anchor protein 13 (AKAP13) in mice with dextran sulphate sodium (DSS)-induced colitis upon mucosal injury and restitution, and investigated whether inhibition of Rho-associated coiled-coil containing protein kinase (ROCK), downstream effector of AKAP13, affects these mucosal responses...
May 20, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28533162/which-patients-with-inoperable-vulvar-cancer-may-benefit-from-brachytherapy-in-addition-to-external-beam-radiation-a-surveillance-epidemiology-and-end-results-analysis
#6
Yuan James Rao, Caressa Hui, Anupama Chundury, Julie K Schwarz, Todd DeWees, Matthew A Powell, David G Mutch, Perry W Grigsby
PURPOSE: It is unknown whether brachytherapy after external beam radiation (EBRT + BT) results in improved outcomes compared with EBRT alone for patients with inoperable vulvar cancer. The purpose of this study was to compare survival outcomes for patients who received these treatment modalities. METHODS AND MATERIALS: Data between 1973 and 2011 from the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) database were analyzed. Patients with Federation of International Gynecologists and Obstetricians stage I-IVA vulvar cancer treated with definitive EBRT + BT or EBRT alone were included...
May 19, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28532068/synthetic-peptides-derived-from-salivary-proteins-and-the-control-of-surface-charge-densities-of-dental-surfaces-improve-the-inhibition-of-dental-calculus-formation
#7
Bernd Grohe
Peptides descended from the salivary proteins statherin and histatin were recently identified in saliva and the acquired enamel pellicle (AEP), a proteomic layer coated on enamel. In particular, the statherin phosphopeptide DpSpSEEKFLR (DSS) was found to adsorb to enamel-like hydroxyapatite and inhibit plaque-related crystal formation. To determine the mechanism of these processes, we studied peptide-crystal interactions based on the sequences DSS and RKFHEKHHSHRGYR (RKF). The latter is a basic histatin sequence showing antimicrobial effects...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28529992/minimally-invasive-surgery-for-gastric-cancer-in-usa-current-status-and-future-perspectives
#8
REVIEW
Ashley Russo, Vivian E Strong
The World Health Organization (WHO) has declared gastric carcinoma a global health concern and gastric cancer remains the third leading cause of cancer deaths worldwide. With the rising incidence of gastric cancer, a body of both retrospective and randomized data has emerged since the early 1990's evaluating the role of minimally invasive platforms in the management of gastric cancer. While Eastern studies have shown that the laparoscopic approach is safe and feasible for advanced gastric cancer in Eastern patients, it is not clear whether this is true for patients in the West...
2017: Translational Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28526604/extramural-perineural-invasion-in-pt3-and-pt4-rectal-adenocarcinoma-as-prognostic-factor-after-preoperative-chemoradiotherapy
#9
Leonardo S Lino-Silva, Rosa A Salcedo-Hernández, Alejandro España-Ferrufino, Erika B Ruiz-García, Miguel Ruiz-Campos, Alberto M León-Takahashi, Abelardo Meneses-García
Perineural invasion (PNI) is widely studied in malignant tumors, and its prognostic significance is well demonstrated in the head and neck and prostate carcinomas, but its significance in rectal cancer is controversial. Most studies have focused on evaluating mural PNI (mPNI); however, extramural PNI (ePNI) may influence the prognosis after rectal cancer resection. We evaluated the prognostic value of ePNI compared with mPNI and with non-PNI, in rectal resections after preoperative chemoradiotherapy in 148 patients with pT3 and pT4 rectal carcinomas...
May 16, 2017: Human Pathology
https://www.readbyqxmd.com/read/28525382/sulfatase-1-overexpression-indicates-poor-prognosis-in-urothelial-carcinoma-of-the-urinary-bladder-and-upper-tract
#10
Hsiang-Ying Lee, Bi-Wen Yeh, Ti-Chun Chan, Kei-Fu Yang, Wei-Ming Li, Chun-Nung Huang, Hung-Lung Ke, Ching-Chia Li, Hsin-Chih Yeh, Peir-In Liang, Yow-Ling Shiue, Wen-Jeng Wu, Chien-Feng Li
Urothelial carcinoma (UC), arising from the urothelium of the urinary tract, can occur in the upper (UTUC) and the urinary bladder (UBUC). A representative molecular aberration for UC characteristics and prognosis remains unclear. Data mining of Gene Expression Omnibus focusing on UBUC, we identified sulfatase-1 (SULF1) upregulation is associated with UC progression. SULF1 controls the sulfation status of heparan sulfate proteoglycans and plays a role in tumor growth and metastasis, while its role is unexplored in UC...
May 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28524086/dietary-green-pea-protects-against-dss-induced-colitis-in-mice-challenged-with-high-fat-diet
#11
Shima Bibi, Luís Fernando de Sousa Moraes, Noelle Lebow, Mei-Jun Zhu
Obesity is a risk factor for developing inflammatory bowel disease. Pea is unique with its high content of dietary fiber, polyphenolics, and glycoproteins, all of which are known to be health beneficial. We aimed to investigate the impact of green pea (GP) supplementation on the susceptibility of high-fat diet (HFD)-fed mice to dextran sulfate sodium (DSS)-induced colitis. Six-week-old C57BL/6J female mice were fed a 45% HFD or HFD supplemented with 10% GP. After 7-week dietary supplementation, colitis was induced by adding 2...
May 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28522908/detection-and-characterization-of-murine-colitis-and-carcinogenesis-by-molecularly-targeted-contrast-enhanced-ultrasound
#12
Markus Brückner, Jan Heidemann, Tobias M Nowacki, Friederike Cordes, Jörg Stypmann, Philipp Lenz, Faekah Gohar, Andreas Lügering, Dominik Bettenworth
AIM: To study mucosal addressin cellular adhesion molecule-1 (MAdCAM-1) and vascular endothelial growth factor (VEGF)-targeted contrast enhanced ultrasound (CEUS) for the assessment of murine colitis and carcinogenesis. METHODS: C57BL/6 mice were challenged with 3% dextran sodium-sulfate (DSS) for three, six or nine days to study the development of acute colitis. Ultrasound was performed with and without the addition of unspecific contrast agents. MAdCAM-1-targeted contrast agent was used to detect and quantify MAdCAM-1 expression...
April 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28522594/sphingomyelin-synthase-2-deficiency-inhibits-the-induction-of-murine-colitis-associated-colon-cancer
#13
Toshio Ohnishi, Chieko Hashizume, Makoto Taniguchi, Hidehiro Furumoto, Jia Han, Rongfen Gao, Shinichi Kinami, Takeo Kosaka, Toshiro Okazaki
Sphingomyelin synthase 2 (SMS2) is the synthetic enzyme of sphingomyelin (SM), which regulates membrane fluidity and microdomain structure. SMS2 plays a role in LPS-induced lung injury and inflammation; however, its role in inflammation-mediated tumorigenesis is unclear. We investigated the effect of SMS2 deficiency on dextran sodium sulfate (DSS)-induced murine colitis and found inhibition of DSS-induced inflammation in SMS2-deficient (SMS2(-/-)) mice. DSS treatment induced a significant increase in ceramide levels, with a decrease of SM levels in SMS2(-/-) colon tissue, and demonstrated attenuation of the elevation of both inflammation-related gene expression and proinflammatory cytokines and chemokines, leukocyte infiltration, and MAPK and signal transducer and activator of transcription 3 activation...
May 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28516960/clinicopathologic-idiosyncrasies-of-nasopharyngeal-cancer-in-a-moderate-risk-mediterranean-region
#14
K Kourelis, T Stergiou, A Papadas, T Kourelis, E Petta, T Papadas
Cancer of the nasopharynx displays an unparalleled skewness of its epidemiologic, pathogenic and clinico-prognostic characteristics depending on the geographic location. Between the endemic and sporadic forms, which occur in Southeastern Asia and Northern America, respectively, intermediate incidence is noted around the Mediterranean. This study describes the patterns of the disease affecting the population of Western Greece. The records of 70 patients with nasopharyngeal cancer diagnosed in a single institution between 1994-2014 were retrospectively reviewed...
June 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28516290/comparison-of-long-term-outcomes-after-non-curative-endoscopic-resection-in-older-patients-with-early-gastric-cancer
#15
Jeung Hui Pyo, Hyuk Lee, Byung-Hoon Min, Jun Haeng Lee, Kyoung-Mee Kim, Heejin Yoo, Soohyun Ahn, Ji Yeong An, Min Gew Choi, Jun Ho Lee, Tae Sung Sohn, Jae Moon Bae, Jae J Kim, Sung Kim
BACKGROUND: Limited data exist that describe the long-term outcomes from additional surgery following non-curative endoscopic resection (ER) of early gastric cancer (EGC) in older people. This study aimed to determine the appropriate treatment strategy for these patients. METHODS: We analyzed data from 2895 patients who underwent ER for EGC, of whom 451 (15.6%) had non-curative resections followed by curative surgery or surveillance only. Of these patients, 138 were older (aged ≥70 years)...
May 17, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28516157/survival-after-metastasectomy-for-metastatic-urothelial-carcinoma-a-systematic-review-and-meta-analysis
#16
Vaibhav Patel, Ana Collazo Lorduy, Aaron Stern, Omar Fahmy, Rachel Pinotti, Matthew D Galsky, Georgios Gakis
Background: Cisplatin-based combination chemotherapy is standard treatment for metastatic urothelial carcinoma; however, the vast majority of patients experience disease progression. As systemic therapy alone is rarely curative for the treatment of metastatic urothelial cancer, not only are new therapies needed but also refinement of general treatment principles. Herein, we conducted a systematic review and meta-analysis to explore the role of metastasectomy in metastatic urothelial carcinoma. Methods: We conducted a systematic review of the literature regarding local treatment for metastatic urothelial carcinoma...
April 27, 2017: Bladder Cancer
https://www.readbyqxmd.com/read/28513174/structure-and-activity-relationship-of-curcumin-role-of-methoxy-group-in-anti-inflammatory-and-anti-colitis-effects-of-curcumin
#17
Haixia Yang, Zheyuan Du, Weicang Wang, Mingyue Song, Katherine Z Sanidad, Elvira Sukamtoh, Jennifer Zheng, Li Tian, Hang Xiao, Zhenhua Liu, Guodong Zhang
Curcumin, a dietary compound from Turmeric, has beneficial effects on inflammatory diseases such as inflammatory bowel disease. While most previous studies have focused on structure-activity relationship of the thiol-reactive α, β-unsaturated carbonyl groups of curcumin, little is known about the roles of methoxy groups in biological activities of curcumin. Here we synthesized a series of curcumin analogs with different substitution groups (R = H-, Br-, Cl-, F-, NO2-, CH3-, and OH-) to replace the methoxy group, and evaluated their biological effects in vitro and in vivo...
May 17, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28507038/high-affinity-pan-specific-monoclonal-antibodies-that-target-cysteinyl-leukotrienes-and-show-efficacy-in-an-acute-model-of-colitis
#18
Ashlee N King, Jonathan K Fleming, Stephanie S Knapik, Barbara Visentin, Jonathan M Wojciak, Tom Huxford
Cysteinyl leukotrienes (CysLTs) are a small family of biological signaling lipids produced by active leukocytes that contribute to diverse inflammatory disease states as a consequence of their engagement with dedicated G protein-coupled receptors. Immunization of mice with a CysLT-modified hapten carrier protein yielded novel monoclonal antibodies that display variable binding affinity to CysLTs. Solution binding assays indicated differing specificities among the antibodies tested, with antibody 10G4 displaying a preference for leukotriene C4 (LTC4)...
May 15, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28505448/spectroscopic-and-calorimetric-studies-of-molecular-recognitions-in-a-dendrimer-surfactant-complex
#19
Somnath Koley, Manas Ranjan Panda, Kiran Bharadwaj, Subhadip Ghosh
Molecular recognitions, causing supramolecular complex formation between a hyperbranched polymer molecule (polyamidoamine (PAMAM) dendrimer generation 3) with oppositely charged surfactant sodium dodecyl sulfate (SDS) in aqueous solution, were studied by using various spectroscopic techniques and calorimetric titration of heat change measurements. Spectroscopic measurements were performed using dynamic Stokes shift (DSS), rotational anisotropy decay, and translational diffusion of a fluorescent probe molecule coumarin 153 (C153) noncovalently attached to the dendrimer-surfactant complex...
May 25, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28494869/mitochondrial-ros-production-protects-the-intestine-from-inflammation-through-functional-m2-macrophage-polarization
#20
Laura Formentini, Fulvio Santacatterina, Cristina Núñez de Arenas, Konstantinos Stamatakis, David López-Martínez, Angela Logan, Manuel Fresno, Ron Smits, Michael P Murphy, José M Cuezva
Mitochondria are signaling hubs in cellular physiology that play a role in inflammatory diseases. We found that partial inhibition of the mitochondrial ATP synthase in the intestine of transgenic mice triggers an anti-inflammatory response through NFκB activation mediated by mitochondrial mtROS. This shielding phenotype is revealed when mice are challenged by DSS-induced colitis, which, in control animals, triggers inflammation, recruitment of M1 pro-inflammatory macrophages, and the activation of the pro-oncogenic STAT3 and Akt/mTOR pathways...
May 9, 2017: Cell Reports
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