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Appendicitis AND cancer

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https://www.readbyqxmd.com/read/28727691/appendicitis-presenting-as-the-first-manifestation-of-colorectal-carcinoma-a-13-year-retrospective-study
#1
Rebecca J Shine, Abigail Zarifeh, Chris Frampton, Jeremy Rossaak
AIM: Appendicitis in older adults may present as the first sign of underlying colorectal cancer. We aim to determine whether there was a difference in the rate of diagnosis of colorectal carcinoma for patients ≥45 years following a presentation with appendicitis, compared with New Zealand standardised rates. METHOD: Retrospective study of patients ≥45 years with a confirmed diagnosis of appendicitis from 2003 to 2015 inclusive. The rate of colorectal carcinoma diagnosed during the 36-month follow-up period was calculated and compared to standardised rates, as per the New Zealand cancer registry...
July 21, 2017: New Zealand Medical Journal
https://www.readbyqxmd.com/read/28678390/natural-product-withanolide-inspired-small-molecules-as-potent-inhibitors-of-wnt-signaling
#2
Herbert Waldmann, Michael Sheremet, Shobhna Kapoor, Peter Schröder, Kamal Kumar, Slava Ziegler
Wnt signaling is a fundamental pathway that drives embryonic development and is essential for stem cell maintenance and tissue homeostasis. Dysregulation of Wnt signaling is linked to various diseases and a constitutively active Wnt pathway drives tumorigenesis. Thus, disruption of the Wnt response is deemed a promising strategy for cancer drug discovery. However, only few clinical drug candidates that target Wnt signaling are available so far and new small molecules modulators of Wnt-related processes are in high demand...
July 5, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28655402/mucinous-appendiceal-neoplasms-incidence-diagnosis-and-surgical-treatment
#3
Oana Anisa Nutu, Alberto A Marcacuzco Quinto, Alejandro Manrique Municio, Iago Justo Alonso, Jorge Calvo Pulido, María García-Conde, Félix Cambra Molero, Luis Carlos Jiménez Romero
INTRODUCTION: Mucinous tumors of the appendix are a rare pathology, with a prevalence below 0.5%. Clinical presentation usually occurs during the sixth decade of life, and mucinous tumors can clinically mimic acute appendicitis. The aim of this study is to describe the clinical and demographic variables, therapeutic procedure and diagnosis of these tumors. We analyze the association between mucinous tumors and pseudomyxoma peritonei (PP), as well as the association with colorectal and ovarian tumors...
June 24, 2017: Cirugía Española
https://www.readbyqxmd.com/read/28643153/a-3e8-scfv-cys-ir800-conjugate-targeting-tag-72-in-an-orthotopic-colorectal-cancer-model
#4
Li Gong, Haiming Ding, Nicholas E Long, Brandon J Sullivan, Edward W Martin, Thomas J Magliery, Michael F Tweedle
PURPOSE: Optical surgical navigation (OSN) will be a potent tool to help surgeons more accurately and efficiently remove tumors. The purpose of this study was to evaluate a novel humanized 3E8 antibody (3E8 MAb) fragment site-specifically conjugated with IR800, 3E8.scFv.Cys-IR800, as a potential OSN agent to target colorectal adenocarcinoma. PROCEDURES: An engineered single-chain variable fragment of 3E8 MAb (targeted to TAG-72), appending a C-terminal cysteine residue (3E8...
June 22, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28628182/prodigiosenes-conjugated-to-tamoxifen-and-estradiol
#5
Estelle Marchal, Carlotta Figliola, Alison Thompson
We report the synthesis of the first click-appended prodigiosene conjugates. Four prodigiosene conjugates of estradiol functionalised at the 7α-position were prepared, as were three prodigiosene conjugates of tamoxifen. The coupling between a prodigiosene and an 11-hydroxy estradiol derivative via an ether linkage was investigated, as was the 11- and 7-functionalisation of the estradiol core. The robustness of estradiol protecting groups was severely challenged by reactions typically used to equip such frameworks for 11- and 7-functionalisation...
June 27, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28623355/epigenetic-and-antitumor-effects-of-platinum-iv-octanoato-conjugates
#6
Vojtech Novohradsky, Ilaria Zanellato, Cristina Marzano, Jitka Pracharova, Jana Kasparkova, Dan Gibson, Valentina Gandin, Domenico Osella, Viktor Brabec
We present the anticancer properties of cis, cis, trans-[Pt(IV)(NH3)2Cl2(OA)2] [Pt(IV)diOA] (OA = octanoato), Pt(IV) derivative of cisplatin containing two OA units appended to the axial positions of a six-coordinate Pt(IV) center. Our results demonstrate that Pt(IV)diOA is a potent cytotoxic agent against many cancer cell lines (the IC50 values are approximately two orders of magnitude lower than those of clinically used cisplatin or Pt(IV) derivatives with biologically inactive axial ligands). Importantly, Pt(IV)diOA overcomes resistance to cisplatin, is significantly more potent than its branched Pt(IV) valproato isomer and exhibits promising in vivo antitumor activity...
June 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28601723/terpyridyl-oxovanadium-iv-complexes-for-dna-crosslinking-and-mito-targeted-photocytotoxicity
#7
Arun Kumar, Ila Pant, Akanksha Dixit, Samya Banerjee, Bhabatosh Banik, Rupak Saha, Paturu Kondaiah, Akhil R Chakravarty
Oxovanadium(IV) complexes [VO(L(1)/L(2))Cl2](n+) (1,2) of (anthracenyl)terpyridine (An-tpy as L(1) in 1, n=0) and triphenylphosphonium-appended (anthracenyl)terpyridine (An-tpy-TPP(+) as L(2) in 2, n=1) were synthesized, characterized and their DNA crosslinking ability, photocytotoxicity in visible light and cellular localization in cancer cells studied. The bromide derivative of 2, viz. [VO(An-tpy-TPP)Br2]Br (3) is structurally characterized. The structure showed trans disposition of two halides in the coordination sphere and the TPP(+) unit is a pendant to the terpyridyl ligand...
September 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28588185/mucinous-adenocarcinoma-of-the-appendix-a-case-report
#8
M K Khan, R H Talukder, M J Uddin
Primary tumors of the appendix are unusual and most of them are carcinoids. Their main presentation is that of an acute appendicitis or as a palpable mass, mainly in the right lower quadrant. A 40 years old male patient presented in Dhaka Community Medical College Hospital, Dhaka, Bangladesh on 31st October 2013 with mucous adenocarcinoma of the appendix, which primarily presented as heaviness in right lower abdomen and atypical abdominal pain. Diagnosis of the disease was made after right hemicolectomy and histopathological analysis of the specimen...
April 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28583217/denis-burkitt-and-the-origins-of-the-dietary-fibre-hypothesis
#9
John H Cummings, Amanda Engineer
For more than 200 years the fibre in plant foods has been known by animal nutritionists to have significant effects on digestion. Its role in human nutrition began to be investigated towards the end of the 19th century. However, between 1966 and 1972, Denis Burkitt, a surgeon who had recently returned from Africa, brought together ideas from a range of disciplines together with observations from his own experience to propose a radical view of the role of fibre in human health. Burkitt came late to the fibre story but built on the work of three physicians (Peter Cleave, G...
June 6, 2017: Nutrition Research Reviews
https://www.readbyqxmd.com/read/28572667/erratum-genomic-variants-in-mouse-model-induced-by-azoxymethane-and-dextran-sodium-sulfate-improperly-mimic-human-colorectal-cancer
#10
Qingfei Pan, Xiaomin Lou, Ju Zhang, Yinghui Zhu, Fuqiang Li, Qiang Shan, Xianwei Chen, Yingying Xie, Siyuan Su, Hanfu Wei, Liang Lin, Lin Wu, Siqi Liu
A correction has been published and is appended to both the HTML and PDF versions of this paper. The error has not been fixed in the paper.
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28567182/adenocarcinoma-of-the-appendix-presenting-as-a-palpable-right-thigh-mass
#11
Marci Handler, Neil Anand, Lawrence Wei, Peter Snieckus
Intra-abdominal and intra-pelvic pathologies initially presenting in extra-abdominal/pelvic locations is unusual. This spread predominantly occurs with infectious processes to sites including the buttock, thigh, and calf. The routes of extension into adjacent anatomically weak compartments include the pelvic outlet, greater sciatic foramen, obturator foramen, inguinal or femoral canal, weak bones, or along nerves and blood vessels. Malignant neoplasms of the appendix, while extremely rare and accounting for only 0...
April 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/28565789/abdominal-ultrasonography-for-patients-with-abdominal-pain-as-a-first-line-diagnostic-imaging-modality
#12
Minoru Tomizawa, Fuminobu Shinozaki, Rumiko Hasegawa, Yoshinori Shirai, Yasufumi Motoyoshi, Takao Sugiyama, Shigenori Yamamoto, Naoki Ishige
The utility and limitations of abdominal ultrasonography (US) were retrospectively evaluated as a first-line diagnostic imaging modality in patients with abdominal pain. Hospital records from patients subjected to abdominal US as a first-line diagnostic imaging examination at the National Hospital Organization Shimoshizu Hospital (Yotsukaido, Japan) from April 2010 to April 2015 were analyzed. Only those patients who underwent abdominal US to diagnose abdominal symptoms were included in the present study. All patients with prior diagnostic imaging examination findings were excluded from the study in order to reduce bias of results...
May 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28558450/-transoral-coblation-assisted-endoscopic-minimally-invasive-surgery-for-superficial-tongue-base-tumours
#13
W Y Li, H Huo, D H Yang, J H Liu, J Wang, X F Jin, Y Y Niu
Objective: To introduce the method of transoral coblation-assisted endoscopic minimally invasive surgery for superficial tongue base tumour. Methods: A total of 15 patients treated with transoral coblation-assisted endoscopic minimally invasive surgery from Mar. 2006 to Aug. 2016 were retrospectively reviewed. There were 9 patients with malignant tumors, 6 patients with benign neoplasms. Adjuvant postoperative radiation therapy was applied in three cases of squamous cell carcinoma, neck was performed in four cases of cancer...
May 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28529250/impact-of-jaw-position-accuracy-on-dose-variation-in-volumetric-modulated-arc-therapy-using-jaw-tracking
#14
Fumiyasu Matsubayashi, Yuki Koizumi, Ryo Takahashi, Minoru Yoshioka, Tomoharu Sato
The technique of jaw tracking can be used in volumetric modulated arc therapy (VMAT) and intensity modulated radiation therapy (IMRT). In this technique, jaw tracks apertures of the multi leaf collimator (MLC) during irradiation. It is reported that dose variation is occurred by the changing accuracy of MLC position in VMAT and IMRT. Though jaw moves dynamically in the irradiation by using this technique, the influence of the jaw position accuracy on dose variation is not examined. The purpose of this study is to verify the influence of jaw position accuracy on dose variation in VMAT using jaw tracking...
2017: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/28495383/zinc-complex-of-tryptophan-appended-1-4-7-10-tetraazacyclododecane-as-potential-anticancer-agent-synthesis-and-evaluation
#15
Anupriya Adhikari, Neelam Kumari, Manish Adhikari, Nitin Kumar, Anjani K Tiwari, Abha Shukla, Anil K Mishra, Anupama Datta
With the rising incidences of cancer cases, the quest for new metal based anticancer drugs has led to extensive research in cancer biology. Zinc complexes of amino acid residue side chains are well recognized for hydrolysis of phosphodiester bond in DNA at faster rate. In the presented work, a Zn(II) complex of cyclen substituted with two l-tryptophan units, Zn(II)-Cyclen-(Trp)2 has been synthesized and evaluated for antiproliferative activity. Zn(II)-Cyclen-(Trp)2 was synthesized in ∼70% yield and its DNA binding potential was evaluated through QM/MM study which suggested good binding (G=-9...
July 1, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28487783/delayed-awareness-of-the-history-of-barium-examination-perforated-barium-appendicitis
#16
Susumu Saigusa, Masaki Ohi, Satoshi Oki, Takashi Ichikawa, Minako Kobayashi, Yasuhiro Inoue, Chikao Miki
A 41-year-old man presented to our hospital with lower abdominal pain and a high-grade fever. Physical examination revealed rebound tenderness and guarding in the lower abdomen. Abdominal X-ray examination showed a radiopaque object in the right lower quadrant of the abdomen. Abdominal computed tomography (CT) demonstrated that the object had a strong artifact with over 10,000 Hounsfield units, as well as ascites around the terminal ileum. We diagnosed acute peritonitis with a suspicion of the perforation due to unknown foreign body and performed an emergency laparotomy...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28486259/appendicitis-in-a-neutropenic-patient-a-multicentric-retrospective-study
#17
Alberto A Scarpa, Géraldine Hery, Arnaud Petit, Benoit Brethon, Irène Jimenez, Virginie Gandemer, Samuel Abbou, Stéphanie Haouy, Jean Breaud, Marilyne Poiree
To study the management of acute appendicitis in neutropenic patients, we retrospectively reviewed cases of acute appendicitis in neutropenic children treated for cancer. The patients' demographics, medical records, and outcomes were tracked. We compared nonoperative treatment versus emergency or delayed surgery. The cases of 30 patients with a mean age of 8.8 years in 12 French departments of Pediatric Hematology/Oncology between 1995 and 2013 were studied. Most patients (90%) were treated for hematological malignancies...
July 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28482147/1-4-5-trisubstituted-imidazole-based-p53-mdm2-mdmx-antagonists-with-aliphatic-linkers-for-conjugation-with-biological-carriers
#18
Aleksandra Twarda-Clapa, Sylwia Krzanik, Katarzyna Kubica, Katarzyna Guzik, Beata Labuzek, Constantinos G Neochoritis, Kareem Khoury, Kaja Kowalska, Miroslawa Czub, Grzegorz Dubin, Alexander Dömling, Lukasz Skalniak, Tad A Holak
The tumor suppressor protein p53, the "guardian of the genome", is inactivated in nearly all cancer types by mutations in the TP53 gene or by overexpression of its negative regulators, oncoproteins MDM2/MDMX. Recovery of p53 function by disrupting the p53-MDM2/MDMX interaction using small-molecule antagonists could provide an efficient nongenotoxic anticancer therapy. Here we present the syntheses, activities, and crystal structures of the p53-MDM2/MDMX inhibitors based on the 1,4,5-trisubstituted imidazole scaffold which are appended with aliphatic linkers that enable coupling to bioactive carriers...
May 25, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28472016/laparoscopic-appendectomy-in-children-with-perforated-appendicitis-a-meta-analysis
#19
Shun Zhang, Tao Du, Xiaohua Jiang, Chun Song
BACKGROUND: The purpose of this meta-analysis was to compare the influence of different surgical procedures on perforated appendicitis in pediatric population. MATERIALS AND METHODS: Studies were identified through a computerized literature search of Pubmed, Embase, Ovid, the Cochrane Colorectal Cancer Group Controlled Trials Register, the Cochrane Central Register of Controlled Trials, the Cochrane Library database, and Web of Science. Two reviewers independently assessed the quality of each study and abstracted outcome data...
May 3, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28395768/what-constitutes-an-unmet-medical-need-in-oncology-an-empirical-evaluation-of-author-usage-in-the-biomedical-literature
#20
Eric Lu, Joseph Shatzel, Florence Shin, Vinay Prasad
The phrase "unmet medical need" has important regulatory implications, but there is no empirical analysis of its real world usage. We sought to determine the annual US incidence, 5-year survival, and number of National Comprehensive Cancer Network (NCCN)-recommended regimens for indications described in the literature as an "unmet medical need." We queried Google Scholar to identify publications where authors used the phrase "unmet medical need" to refer to a specific cancer indication. For each indication, we investigated the annual US incidence, 5-year survival, and number of NCCN recommended regimens...
February 2017: Seminars in Oncology
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