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https://www.readbyqxmd.com/read/28732346/multiplexed-aptasensor-for-simultaneous-detection-of-carcinoembryonic-antigen-and-mucin-1-based-on-metal-ion-electrochemical-labels-and-ru-nh3-6-3-electronic-wires
#1
Chao Ma, Haiyun Liu, Lina Zhang, Hao Li, Mei Yan, Xianrang Song, Jinghua Yu
In this paper, a dual-target electrochemical aptasensor has been developed for simultaneous detection of carcinoembryonic antigen and mucin-1 based on metal ion electrochemical labels and Ru(NH3)6(3+) electronic wires. When targets are present, the interaction between targets and their respective aptamers leads to the dissociation of double-strand DNA because the targets have higher affinity to its aptamer than the complementary strand. And the qualitative and quantitative analyses of the two targets are realized by the differential pulse voltammetry (DPV) peaks generated by metal ion electrochemical labels...
July 13, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28732270/unexpected-histopathology-of-acute-appendicitis
#2
Mutee Ur Rehman, Felik Paulus, Min Hoe Chew
INTRODUCTION: Appendicular diverticula and associated diverticulitis is a rare disease. Patients present commonly with symptoms of acute appendicitis and require laparoscopic or open surgery. Diagnosis is usually made only on histology. Here, we present a rare case of acute diverticulitis of the appendix. CASE PRESENTATION: A 33-year old gentleman presented with right iliac fossa pain of 3 days duration. On admission, appendicitis was diagnosed on Computerized Tomography (CT) scan and laparoscopic appendicectomy was subsequently performed...
July 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28731994/-the-frequency-and-clinical-profile-of-gallbladder-cancer-in-patients-undergoing-cholecystectomy-in-3-reference-hospitals-in-chiclayo-between-2011-2015
#3
Fernando Eulogio Peña Dávila, Fernando Andrés Sánchez Renteria, Jorge Fernandez Mogollon, Martha Roxana Rodríguez Rodríguez
OBJECTIVES: To describe the frequency and clinical profile of gallbladder cancer in patients undergoing cholecystectomy in 3 reference hospitals in Chiclayo between 2011-2015. MATERIALS AND METHODS: A retrospective cross-sectional study. The study is divided into 2 phases, the first was to count the total number of reports of gallbladder pathology and select positive cases for cancer; the second phase was to collect data from the medical records of patients positive for cancer...
April 2017: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28731466/interaction-of-galectin-3-with-muc1-on-cell-surface-promotes-egfr-dimerization-and-activation-in-human-epithelial-cancer-cells
#4
Tushar Piyush, Anisha R Chacko, Paulina Sindrewicz, John Hilkens, Jonathan M Rhodes, Lu-Gang Yu
Epidermal growth factor receptor (EGFR) is an important regulator of epithelial cell growth and survival in normal and cancerous tissues and is a principal therapeutic target for cancer treatment. EGFR is associated in epithelial cells with the heavily glycosylated transmembrane mucin protein MUC1, a natural ligand of galectin-3 that is overexpressed in cancer. This study reveals that the expression of cell surface MUC1 is a critical enhancer of EGF-induced EGFR activation in human breast and colon cancer cells...
July 21, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28730790/perioperative-systemic-chemotherapy-for-peritoneal-mucinous-appendiceal-carcinomas-treated-with-cytoreductive-surgery-hipec
#5
John Spiliotis, Nikolaos Kopanakis, Elias Efstathiou, Dimitra Vassiliadou, Orestis Argiriou, Athanassios Rogdakis, Christos Valavanis
PURPOSE: To identify the role of systemic chemotherapy in the management of appendiceal malignancies. METHODS: Over a 10-year period (2005 -2014), 52 patients with appendiceal neoplasms were treated at our Peritoneal Surface Malignancy Unit [14 (26.9%) disseminated peritoneal adenomucinosis (DPAM), 30 (57.7%) peritoneal mucinous carcinomatosis of appendiceal origin (PMCA) and 8 (15.4%) PMCA-I]. All patients (100%) underwent cytoreductive surgery (CRS) & hyperthermic intraperitoneal chemotherapy (HIPEC), while 20 (38...
May 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28730323/the-pathogenesis-diagnosis-and-management-of-metastatic-tumors-to-the-ovary-a-comprehensive-review
#6
REVIEW
Ondřej Kubeček, Jan Laco, Jiří Špaček, Jiří Petera, Jindřich Kopecký, Alena Kubečková, Stanislav Filip
Secondary tumors of the ovary account for 10-25% of all ovarian malignancies. The most common tumors that give rise to ovarian metastases include breast, colorectal, endometrial, stomach, and appendix cancer. The correct diagnosis of secondary ovarian tumors may be challenging as they are not infrequently misdiagnosed as primary ovarian cancer, particularly in the case of mucinous adenocarcinomas. The distinction from the latter is essential, as it requires different treatment. Immunohistochemistry plays an important role in distinguishing primary ovarian tumors from extra-ovarian metastases and, furthermore, may suggest the primary tumor site...
July 20, 2017: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/28729399/decitabine-priming-enhances-mucin-1-inhibition-mediated-disruption-of-redox-homeostasis-in-cutaneous-t-cell-lymphoma
#7
Salvia Jain, Abigail Washington, Rebecca Karp Leaf, Parul Bhargava, Rachael A Clark, Thomas S Kupper, Dina Stroopinsky, Athalia Pyzer, Leandra Cole, Myrna Nahas, Arie Apel, Jacalyn Rosenblatt, Jon Arnason, Donald Kufe, David Avigan
Cutaneous T-cell lymphoma (CTCL) is a heterogeneous neoplasm and patients with relapsed/refractory disease exhibit resistance to standard therapies. We have previously demonstrated that the MUC1-C oncoprotein plays a critical role in protection from oxidative stress in CTCL cells. Targeting of MUC1-C with a pharmacologic inhibitor, GO-203, was associated with apoptosis in CTCL. However, disease responses were incomplete underscoring the need for combinatorial strategies that could exploit the vulnerability of CTCL cells to oxidative signals...
July 20, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28729052/tedizolid-inhibits-muc5ac-production-induced-by-methicillin-resistant-staphylococcus-aureus-in-human-airway-epithelial-cells
#8
Kazuaki Takeda, Norihito Kaku, Yoshitomo Morinaga, Kosuke Kosai, Naoki Uno, Yoshifumi Imamura, Hiroo Hasegawa, Taiga Miyazaki, Koichi Izumikawa, Hiroshi Mukae, Katsunori Yanagihara
The innate immune system plays an important role in early immunity against respiratory tract infection. Although airway epithelial cells produce mucus to eliminate pathogens and irritants, hypersecretion of mucus is harmful for the host as it may cause airway obstruction and inhibit influx of antimicrobial agents. It has been reported that several antimicrobial agents have an immunomodulatory effect in vitro and in vivo, but little is known about whether tedizolid, a novel oxazolidinone, can modulate immune responses...
July 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28728793/primary-mucinous-carcinoma-of-the-skin-a-case-report
#9
C Areán-Cuns, A Córdoba-Iturriagagoitia, B Aguiar-Losada, I Yanguas-Bayona
No abstract text is available yet for this article.
July 17, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28727941/mucin-1-is-a-novel-glycoprotein-involved-in-host-defense-against-invasive-pneumococcal-disease
#10
Jose Yuste
No abstract text is available yet for this article.
July 20, 2017: Virulence
https://www.readbyqxmd.com/read/28726276/the-colonic-groove-of-the-plains-viscacha-lagostomus-maximus-histochemical-evidence-of-an-abrupt-change-in-the-glycosylation-pattern-of-goblet-cells
#11
María Florencia Tano de la Hoz, Mirta Alicia Flamini, Carolina Natalia Zanuzzi, Alcira Ofelia Díaz
The ascending colon of most rodent species shows a longitudinal colonic groove that works as a retrograde transport pathway for a mixture of bacteria and mucus toward the cecum. We describe the morphology and glycosylation pattern of the colonic groove of Lagostomus maximus to analyze the role of mucins in this anatomical feature. We also studied the distribution pattern of the interstitial cells of Cajal (ICC) to evaluate their regulatory influence on gut motility. The groove originated near the cecocolic junction and extended along the mesenteric side of the ascending colon, limited at both ends by nonpapillated ridges...
July 20, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28725490/muc1-o-glycosylation-contributes-to-anoikis-resistance-in-epithelial-cancer-cells
#12
Tushar Piyush, Jonathan M Rhodes, Lu-Gang Yu
Anoikis is a fundamental cellular process for maintaining tissue homeostasis. Resistance to anoikis is a hallmark of oncogenic epithelial-mesenchymal transition and is a pre-requisite for metastasis. Previous studies have revealed that the heavily glycosylated mucin protein MUC1, which is overexpressed in all types of epithelial cancer cells, prevents anoikis initiation in response to loss of adhesion. This effect of MUC1 is largely attributed to its extracellular domain that provides cell surface anoikis-initiating molecules with a 'homing' microenvironment...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28725064/editorial-stopping-pancreatic-cyst-surveillance
#13
James J Farrell
The management of patients with pancreatic cysts, especially presumed branch duct intraductal papillary mucinous neoplasms (BD-IPMNs), remains a challenge. BD-IPMNs carry a very low risk of malignancy and occur in predominantly older individuals who often die from causes not related to their pancreatic disease. The specific decision to stop surveillance of presumed low risk BD-IPMNs (those without either worrisome features (WF) or high risk stigmata (HRS)) is controversial, and needs to balance the real risk of malignancy or developing malignancy and IPMN-related mortality, with the patient's life expectancy, quality of life expectations, and mortality from non-pancreatic-related causes...
July 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28725043/mucin-2-silencing-promotes-colon-cancer-metastasis-through-interleukin-6-signaling
#14
Hui-Ping Hsu, Ming-Derg Lai, Jenq-Chang Lee, Meng-Chi Yen, Tzu-Yang Weng, Wei-Ching Chen, Jung-Hua Fang, Yi-Ling Chen
Downregulation of Mucin 2 (MUC2) expression is associated with early carcinogenesis events in colon cancer. MUC2 plays a role in the progression of colon cancer, and reduced MUC2 protein expression correlates with increased interleukin-6 (IL-6) expression. However, the interaction between MUC2 and IL-6 in colorectal cancer metastasis remains unclear. We systematically analyzed MUC2 and IL-6 expression and determined the survival of cancer patients with high or low MUC2 and IL-6 expression using the Oncomine and PrognoScan databases, respectively...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724304/synchronous-intraductal-papillary-mucinous-neoplasm-and-a-pancreatic-neuroendocrine-tumor-more-than-a-coincidence
#15
Juliana M Costa, Sofia Carvalho, João B Soares
Although the association between intraductal papillary mucinous neoplasm of the pancreas (IPMN) and pancreatic neuroendocrine tumor (PNET) has been increasingly reported, whether this association is real or coincidence remains unclear. We report a case of synchronous IPMN and a PNET which were diagnosed preoperatively and discuss the tumorigenesis, clinicopathological features and management of these rare tumors based on the published literature. A 56-year-old male was incidentally diagnosed with a 14 mm branch duct IPMN and a 3...
July 14, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28723077/comparison-of-methods-to-release-mucin-type-o-glycans-for-glycomic-analysis
#16
Yukinobu Goso, Tsukiko Sugaya, Kazuhiko Ishihara, Makoto Kurihara
Mucin-type O-glycans (O-glycans) are one of the most common glycans attached to proteins. To develop an optimized glycomic analysis protocol, O-glycans were released from glycoproteins using hydrazine, ammonia, or sodium hydroxide treatment, followed by hydrophilic interaction liquid chromatography to evaluate O-glycan release. We found that porcine gastric mucin or bovine fetuin treated at 60°C for 6 h with hydrazine gas in the presence of malonic acid yielded O-glycans with only a small amount of degraded, so-called "peeled" products...
July 19, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28722095/-correlation-of-mri-apparent-diffusion-coeffcient-with-molecular-marker-ki-67-in-gastric-cancer
#17
Guodian Zheng, Xiangdong Cheng, Lijing Wang, Zhiyuan Xu, Xuning Gao, Pengfei Yu, Hang Lyu, Ting Huang, Jiahui Chen
OBJECTIVES: To study the correlation between MRI apparent diffusion coefficient (ADC) and expression of Ki-67 in gastric cancers, and to investigate the application of ADC value in diagnosing the malignance of gastric cancer. METHODS: A retrospective cohort analysis was performed on 87 gastric cancer patients who received MRI examination and radical resection at Zhejiang Provincial Hospital of Traditional Chinese Medicine from November 2014 to August 2015. All the postoperative resected samples were confirmed as gastric cancer...
July 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28721502/mucin-cross-feeding-of-infant-bifidobacteria-and-eubacterium-hallii
#18
Vera Bunesova, Christophe Lacroix, Clarissa Schwab
Mucus production is initiated before birth and provides mucin glycans to the infant gut microbiota. Bifidobacteria are the major bacterial group in the feces of vaginally delivered and breast milk-fed infants. Among the bifidobacteria, only Bifidobacterium bifidum is able to degrade mucin and to release monosaccharides which can be used by other gut microbes colonizing the infant gut. Eubacterium hallii is an early occurring commensal that produces butyrate and propionate from fermentation metabolites but that cannot degrade complex oligo- and polysaccharides...
July 18, 2017: Microbial Ecology
https://www.readbyqxmd.com/read/28720847/the-glycointeractome-of-serogroup-b-neisseria-meningitidis-strain-mc58
#19
Tsitsi D Mubaiwa, Lauren E Hartley-Tassell, Evgeny A Semchenko, Freda E-C Jen, Yogitha N Srikhanta, Christopher J Day, Michael P Jennings, Kate L Seib
Neisseria meningitidis express numerous virulence factors that enable it to interact with diverse microenvironments within the host, during both asymptomatic nasopharyngeal colonization and invasive disease. Many of these interactions involve bacterial or host glycans. In order to characterise the meningococcal glycointeractome, glycan arrays representative of structures found on human cells, were used as a screening tool to investigate host glycans bound by N. meningitidis. Arrays probed with fluorescently labelled wild-type MC58 revealed binding to 223 glycans, including blood group antigens, mucins, gangliosides and glycosaminoglycans...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28719887/anesthetic-management-of-cytoreductive-surgery-and-hyperthermic-intraperitoneal-chemotherapy-crs-hipec-the-importance-of-hydro-electrolytic-and-acid-basic-control
#20
Fabrício Tavares Mendonça, Marília Moreira Guimarães, Sérgio Honorato de Matos, Rúbia Garcia Dusi
JUSTIFICATION AND OBJECTIVES: Patients affected by gynecological or gastrointestinal tract neoplasms that evolve to peritoneal carcinomatosis experience a significant drop in their quality of life, high morbidity and short survival times with currently available chemotherapeutic schemes. The surgical treatment based on cytoreduction and the employment of hyperthermic intraperitoneal chemotherapy in the intra-operative period is a true challenge to anesthesiologist. CASE REPORT: A 67 years old patient diagnosed with mucinous adenocarcinoma of the Appendix associated with mucinous carcinomatosis, was submitted to cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC), under general anesthesia and epidural block...
July 10, 2017: International Journal of Surgery Case Reports
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