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https://www.readbyqxmd.com/read/28644035/influence-of-a-basic-side-chain-on-the-properties-of-hypoxia-selective-nitro-analogues-of-the-duocarmycins-demonstration-of-substantial-anticancer-activity-in-combination-with-irradiation-or-chemotherapy
#1
Moana Tercel, Ho H Lee, Sunali Y Mehta, Jean-Jacques Youte Tendoung, Sally Y Bai, H D Sarath Liyanage, Frederik B Pruijn
A new series of nitro analogues of the duocarmycins was prepared and evaluated for hypoxia-selective anticancer activity. The compounds incorporate 13 different amine-containing side chains designed to bind in the minor groove of DNA while spanning a wide range of base strength from pKa 9.64 to 5.24. The most favorable in vitro properties were associated with strongly basic side chains, but the greatest in vivo antitumor activity was found for compounds containing a weakly basic morpholine. This applies to single-agent activity and for activity in combination with irradiation or chemotherapy (gemcitabine or docetaxel)...
June 23, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28643317/-effect-of-metformin-on-colorectal-carcinoma-in-type-2-diabetes-mellitus-patients-a-markov-model-analysis
#2
Tianhong Su, Bing Liao, Yu Dong, Zhenwei Peng, Qian Zhou, Bin Li, Sui Peng, Ning Zhang
OBJECTIVE: To evaluate the colorectal cancer (CRC) prevention effect of metformin in comparison with that of other T2DM medications from a Markov model perspective. METHODS: Literature concerning CRC morbidity of T2DM patients with metformin or other diabetes medications treatment was reviewed in PubMed and Cochrane Library database from September 2010 to December 2016. INCLUSION CRITERIA: (1)enrolled population was adult patients with T2DM but without CRC; (2) any of the parameters applied in our model was reported; (3) randomized clinical trials (RCTs), quasi-randomized trials, prospective or retrospective cohort studies...
June 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28626853/conjunctival-melanoma-in-southwestern-nigeria-a-case-series-and-review-of-literature
#3
Oluyemi Fasina, Olayiwola A Oluwasola
PURPOSE: Conjunctival melanoma is a rare tumor worldwide and is extremely rare among black population. This study aims to report the demographics, clinical presentation, treatment, and outcome of patients seen in an indigenous black population in Southwestern Nigeria. METHODS: All patients histologically diagnosed with conjunctival melanoma and managed in the facility were reviewed. Their demographics, clinical presentation, treatment received, outcome of treatment, and histopathological features were analyzed...
June 19, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28625007/the-role-of-insulin-like-growth-factor-i-ii-receptor-on-development-of-pleomorphic-adenoma
#4
Ibrahim Arslan, Erol Keles, I Hanifi Ozercan, Mehmet Tokdemir, Turgut Karlidag, Irfan Kaygusuz, Orkun Eroglu, Koray Yuksel, Sinasi Yalcin
Pleomorphic adenoma is a slow-growing salivary gland tumor frequently arising from the parotid gland. In this study, we investigated the role of the insulin-like growth factor I-II receptor (IGFI-IIR) levels on the development of parotid gland pleomorphic adenomas. The study included 20 males and 20 females who had superficial parotidectomy with a histopathological diagnosis of pleomorphic adenoma in Fırat University Otorhinolaryngology Clinic between 2000 and 2011. The ages of the patients ranged between 20 and 50 years...
June 17, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28616292/uniportal-video-assisted-thoracoscopic-surgery-left-upper-lobectomy-and-systematic-lymph-node-dissection-with-fused-fissure
#5
Ying Chen, Jun-Tao Lin, Song Dong, Xue-Ning Yang, Yi-Long Wu, Wen-Zhao Zhong
As surgical proficiency and the development of medical techniques have improved, uniportal video-assisted thoracoscopic surgery (VATS) has emerged as a minimally invasive alternative in the surgical management of lung cancer. The spectrum of uniportal VATS indications is now almost equal to that of conventional VATS. Recent decades have witnessed the emergence of numerous uniportal VATS techniques. A significant proportion of these have to be converted into a multiport approach and even open thoracotomy due to the difficulty of managing the upper lobe vein and bronchus, particularly for the technically challenging left upper lobectomy...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28614219/third-line-chemotherapy-in-advanced-gastric-cancer-a-systematic-review-and-meta-analysis
#6
Yu Zheng, Xu-Qing Zhu, Xiao-Gang Ren
BACKGOUND: Little information regarding to the survival advantage of third-line chemotherapy in advanced gastric cancer patients is available. The current study is designed to systematically review and perform meta-analysis on the effect of third-line chemotherapy on progressive or recurrent gastric cancer treatment. METHODS: After thorough searching of online databases, total 20 articles were included into qualitative systematic review and 6 of them were used to conduct qualitative meta-analysis...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28605477/mertk-as-a-therapeutic-target-in-glioblastoma
#7
Jing Wu, Lauren N Frady, Ryan E Bash, Stephanie M Cohen, Allison N Schorzman, Yu-Ting Su, David M Irvin, William C Zamboni, Xiaodong Wang, Stephen V Frye, Matthew G Ewend, Erik P Sulman, Mark R Gilbert, H Shelton Earp, C Ryan Miller
Background: Glioma-associated macrophages and microglia (GAMs) are components of the glioblastoma (GBM) microenvironment that express MerTK, a receptor tyrosine kinase that triggers efferocytosis and can suppress innate immune responses. The aim of the study was to define MerTK as a therapeutic target using an orally bioavailable inhibitor, UNC2025. Methods: We examined MerTK expression in tumor cells and macrophages in matched patient GBM samples by double-label immunohistochemistry...
June 12, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28604382/surgical-treatment-of-gastric-stromal-tumors-laparoscopic-versus-open-approach
#8
Monica Ortenzi, Roberto Ghiselli, Luca Cardinali, Mario Guerrieri
AIM: Gastrointestinal stromal tumors (GIST) are quite rare tumors, but yet they are the most common mesenchymal lesions of gastrointestinal tract. Their outmost frequent origin site is stomach and presently surgical resection is the mainstay in the treatment of gastric non metastatic GIST. Their peculiar characteristic of growth and poor metastatic tendency make this tumors particularly prone to be managed by minimally invasive technique. Presenting our experience we want show the feasibility and safeness of laparoscopic approach for gastric GIST and its benefits versus traditional open surgery and pointing out short term and long terms outcomes...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28598835/efficacy-of-contrast-enhanced-ultrasound-for-immediate-assessment-of-ablation-status-after-intraoperative-radiofrequency-ablation-of-hepatic-malignancies
#9
N Platz Batista da Silva, L P Beyer, M C Hottenrott, C Hackl, H J Schlitt, C Stroszczynski, P Wiggermann, E M Jung
AIM: To evaluate the Efficacy of intraoperative contrast enhanced ultrasound (Io-CEUS) for assessment of radiofrequency ablation (RFA) during liver tumor surgery. MATERIAL AND METHODS: Retrospective analyis was performed on 18 patients who underwent combined liver tumor surgery and RFA of 27 hepatic tumors between 02/2011 and 12/2016. Io-CEUS was performed by bolus injections of up to 10 ml sulphur hexaflourid microbubbles for diagnostic purposes. To guide the RFA up to 20 ml microbubbles were applied to monitor the procedure and assess the ablation status finally...
June 3, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28595965/low-expression-of-estrogen-receptor-%C3%AE-and-progesterone-receptor-in-human-breast-cancer-tissues-is-associated-with-high-grade-human-cytomegalovirus-protein-expression
#10
Afsar Rahbar, Joel Touma, Helena Costa, Belghis Davoudi, Ida Rashid Bukholm, Torill Sauer, Katja Vetvik, Jürgen Geisler, Cecilia Söderberg-Naucler
BACKGROUND: The underlying mechanisms for breast cancer (BC) are largely unknown. We investigated possible correlations between the expression levels of human cytomegalovirus (HCMV) proteins and established histopathological markers of BC, including expression of estrogen receptor (ER)-α, the progesterone receptor (PgR), and HER2. MATERIALS AND METHODS: We retrospectively examined paraffin-embedded biopsy specimens of BC (n = 62), ductal carcinoma in situ (n = 19), and adjacent normal breast tissue (n = 42) for HCMV immediate-early protein (IE), HCMV late antigen, HCMV DNA and RNA, and investigated possible correlations between them and expression of ER-α, PgR, and HER2...
May 11, 2017: Clinical Breast Cancer
https://www.readbyqxmd.com/read/28589972/the-influence-of-tumor-induced-immune-dysfunction-on-the-immune-cell-distribution-of-gold-nanoparticles-in-vivo
#11
Chenxi Wu, Hongmei Chen, Xuan Wu, Xiuxiu Cong, Li Wang, Yucai Wang, Yongguang Yang, Wei Li, Tianmeng Sun
Gold nanoparticles (AuNPs) have been extensively explored as a drug carrier and have been widely used to provide advanced biomedical research tools in diagnostic imaging and therapy for cancer. Although the mononuclear phagocyte system and immune system are known to play the main roles in the clearance of AuNPs during the circulation, the particle distribution within the immune cells under the condition of immune dysfunction caused by tumor growth has not been thoroughly studied. Here, the cellular distribution of Cy5 labeled AuNPs with diameters of 5, 30 and 50 nm is characterized within the immune populations of the blood, spleen and bone marrow from tumor free and tumor bearing mice using flow cytometry...
June 7, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28588777/the-combination-of-systemic-chemotherapy-and-local-treatment-may-improve-the-survival-of-patients-with-unresectable-metastatic-colorectal-cancer
#12
Jiemin Zhao, Liangrong Shi, Mei Ji, Jun Wu, Changping Wu
With the development of systemic chemotherapy, the survival time of patients with advanced colorectal cancer (CRC) has increased. In addition, local treatments, such as microwave ablation and radioactive seed implantation, have been shown to be effective. However, the number of studies reporting on the effect of systemic chemotherapy combined with local treatments is limited. The present study was conducted to determine the effect of local treatment combined with systemic chemotherapy in patients with initial unresectable metastatic CRC (mCRC)...
June 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28583553/living-donor-kidney-transplantation-after-brachytherapy-for-prostate-cancer-case-report
#13
S Harada, H Ushigome, K Masuda, T Matsuyama, T Nakamura, K Koshino, T Iida, S Nobori, N Yoshimura
INTRODUCTION: There is no obvious criterion about kidney transplantation for patients with pretransplant malignancy. Minimum tumor-free waiting periods differ according to type of cancer, staging, site of occurrence, response to therapy, and risk of cancer recurrence. We report a case of living donor kidney transplantation (LDKT) in a patient after brachytherapy for prostate cancer. CASE REPORT: The patient was a 65-year-old man with chronic kidney disease due to chronic glomerular nephritis...
June 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28570391/spiradenocarcinoma-a-comprehensive-data-review
#14
Roxane D Staiger, Birgit Helmchen, Claudia Papet, Diana Mattiello, Urs Zingg
INTRODUCTION: Spiradenocarcinomas (SCs) are rare and potentially aggressive skin adnexal tumors. Optimal treatment has not yet been established. Experiences with this carcinoma are mostly presented in case reports and few case series. OBJECTIVE: To generate to a synopsis of published data on SC with regard to diagnostic procedures, treatment, and outcome. RESULTS: Median patient age was 60 years and sex distribution was balanced. Tumor manifestations were evenly distributed within the sweat gland carrying skin...
May 16, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28550398/association-of-tumor-size-and-focality-with-recurrence-persistence-in-papillary-thyroid-cancer-patients-treated-with-total-thyroidectomy-along-with-radioactive-iodine-ablation-and-tsh-suppression
#15
Misbah Khan, Aamir Ali Syed, Amina Iqbal Khan, Syed Raza Hussain, Namra Urooj
Locoregional recurrence is common in papillary thyroid cancer PTC and an optimal surgical treatment with respect to the multifocal nature of the disease stays controversial. It is a retrospective analytical study design. 209 diagnosed PTCs managed at our institute were grouped into macro-PTC with a size of dominant focus >1 cm (unifocal n = 106 and multifocal n = 64) and micro-PTMC if size of all foci was <1 cm; (unifocal n = 16 and multifocal PTMC n = 23). The primary endpoint is recurrence and tumor free survival in each of the four groups...
May 26, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28550278/torsion-of-a-giant-antimesenteric-lipoma-of-the-ileum-a-rare-cause-of-acute-abdominal-pain
#16
Ta-Wei Yang, Yi-Wei Tsuei, Chung-Cheng Kao, Wen-Hsien Kuo, Yan-Lin Chen, Yen-Yue Lin
BACKGROUND Torsion of an intra-abdominal lipoma is rarely the cause of acute abdominal pain. Most of the previously reported cases of intra-abdominal lipoma torsion originated in the mesentery or omentum. However, an antimesenteric lipoma of the ileum with torsion has not been reported before. CASE REPORT A 67-year-old man presented to the emergency department with acute abdominal pain. Contrast-enhanced computed tomography (CECT) of the abdomen and pelvis only showed a giant fat-containing, soft-tissue, intra-abdominal tumor, suspected to be a lipoma...
May 27, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28547986/simultaneous-occurrence-of-pancreatic-mixed-acinar-ductal-adenocarcinoma-and-primary-follicular-lymphoma-of-the-duodenum-accompanied-by-increased-number-of-igg4-plasma-cells-in-tumor-free-parenchyma-as-concomitant-igg4-related-disease-or-reaction-to-tumor-a
#17
Branislava Ranković, Clara Limbaeck-Stokin, Mihajlo Đokić, Dragoje Stanisavljević, Metka Volavšek
Mixed acinar-ductal carcinoma is rare among pancreatic cancers, as is duodenal involvement in follicular lymphoma (FL). Although usually a systemic disease, primary FL of the duodenum occurs, with superficial involvement of the intestinal wall and low risk of progression. We report on a unique case of mixed ductal-acinar carcinoma of the pancreatic head accompanied by low-grade duodenal FL and autoimmune pancreatitis-like changes in adjacent pancreatic parenchyma. To our knowledge this is the first report of concomitant pancreatic mixed acinar-ductal carcinoma and duodenal FL...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/28544068/interstitial-fluid-pressure-a-novel-biomarker-to-monitor-photo-induced-drug-uptake-in-tumor-and-normal-tissues
#18
Sabrina Cavin, Xingyu Wang, Matthieu Zellweger, Michel Gonzalez, Michaël Bensimon, Georges Wagnières, Thorsten Krueger, Hans-Beat Ris, Fabrizio Gronchi, Jean Y Perentes
BACKGROUND: Low-dose photodynamic therapy PDT (photoinduction) can modulate tumor vessels and enhance the uptake of liposomal cisplatin (Lipoplatin®) in pleural malignancies. However, the photo-induction conditions must be tightly controlled as overtreatment shuts down tumor vessels and enhances normal tissue drug uptake. MATERIAL AND METHODS: In a pleural sarcoma and adenocarcinoma rat model (n = 12/group), we applied photoinduction (0.0625 mg/kg Visudyne®, 10 J/cm(2) ) followed by intravenous Lipoplatin® (5 mg/kg) administration...
May 22, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28538028/unnecessary-cost-of-post-mohs-permanent-pathology
#19
Kelly M MacArthur, Nikki Tang, George J Hruza, Timothy S Wang, Robert G Egbers
BACKGROUND: By providing tumor-free margins, Mohs micrographic surgery (MMS) results in high cure rates in the treatment of nonmelanoma skin cancers (NMSCs). However, when closure of the post-MMS defect is coordinated with reconstructive surgery, redundant tissue is sometimes submitted for permanent section evaluation. OBJECTIVE: The purpose of our study was to investigate the frequency and effect of this practice. MATERIALS AND METHODS: Patients (12 years and older) with NMSCs cleared by MMS with coordinated closures from 2014 to 2016 were identified...
May 22, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28523518/decreased-human-leukocyte-antigen-a-02-01-frequency-is-associated-with-risk-of-glioma-and-existence-of-human-cytomegalovirus-a-case-control-study-in-northern-china
#20
Sheng Han, Jian Deng, Zixun Wang, Huan Liu, Wen Cheng, Anhua Wu
BACKGROUND: Human leukocyte antigens (HLAs) play an important role in host defense against viral infection and tumorigenesis. Human cytomegalovirus (HCMV) has been linked to glioma development. This study investigated the relationship between HLA distribution, presence of HCMV, and glioma development in a Han Chinese population. METHODS: The study population included 150 glioma patients and 150 tumor-free brain injury control subjects (control-A) matched according to geography, ethnicity, age, and gender...
May 18, 2017: Cancer Immunology, Immunotherapy: CII
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