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https://www.readbyqxmd.com/read/29793088/decellularized-and-matured-esophageal-scaffold-for-circumferential-esophagus-replacement-proof-of-concept-in-a-pig-model
#1
Guillaume Luc, Guillaume Charles, Caroline Gronnier, Magali Cabau, Charlotte Kalisky, Mallory Meulle, Reine Bareille, Samantha Roques, Lionel Couraud, Johanna Rannou, Laurence Bordenave, Denis Collet, Marlène Durand
Surgical resection of the esophagus requires sacrificing a long portion of it. Its replacement by the demanding gastric pull-up or colonic interposition techniques may be avoided by using short biologic scaffolds composed of decellularized matrix (DM). The aim of this study was to prepare, characterize, and assess the in vivo remodeling of DM and its clinical impact in a preclinical model. A dynamic chemical and enzymatic decellularization protocol of porcine esophagus was set up and optimized. The resulting DM was mechanically and biologically characterized by DNA quantification, histology, and histomorphometry techniques...
May 17, 2018: Biomaterials
https://www.readbyqxmd.com/read/29792724/a-systematic-understanding-of-signaling-by-erbb2-in-cancer-using-phosphoproteomics
#2
C Sidhanth, P Manasa, S Krishnapriya, S Sneha, S Bindhya, R P Nagare, M Garg, T S Ganesan
ErbB2 is an important receptor tyrosine kinase and a member of the ErbB family. Although it does not have a specific ligand, it transmits signals downstream by heterodimerization with other receptors in the family. It plays a major role in a variety of cellular responses like proliferation, differentiation, and adhesion. ErbB2 is amplified at the DNA level in breast cancer (20%-30%) and gastric cancer (10%-20%), and trastuzumab is effective as a therapeutic antibody. This review is a critical analysis of the currently published data on the signaling pathways of ErbB2 and the interacting proteins...
May 24, 2018: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/29792357/synthesis-and-in-vivo-anti-ulcer-evaluation-of-some-novel-piperidine-linked-dihydropyrimidinone-derivatives
#3
Mashooq Ahmad Bhat, Mohamed A Al-Omar, Ahmed M Naglah
Dihydropyrimidinone derivatives containing piperidine moiety were synthesised in a good yield. All the compounds were confirmed by elemental analysis and spectral data. Anti-ulcer activity of novel dihydropyrimidinone-piperidine hybrids (1-18) was evaluated. Among them, four compounds (3, 8, 11 and 15) were found to be most active in 80% ethanol-induced ulcer experimental animal model. All the potent compounds were further evaluated for anti-ulcer activity by different in vivo anti-ulcer models to study the effect of compounds on anti-secretory and cytoprotective activities...
December 2018: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/29792353/gastroretentive-raft-liquid-delivery-system-as-a-new-approach-to-release-extension-for-carrier-mediated-drug
#4
Samar M Abouelatta, Ahmed A Aboelwafa, Omaima N El-Gazayerly
Gabapentin (GBP), an antiepileptic and anti-neuropathic agent, suffers from short half-life (5-7 h), has narrow absorption window, and is absorbed via carrier-mediated mechanism resulting in frequent dosing, poor compliance, and poor bioavailability (<60%). Moreover, GBP is a freely water-soluble drug, thus it is considered a challenging candidate to be formulated as extended release dosage form. In this study, raft forming systems were investigated as a potential drug delivery system for prolonging gastric residence time of GBP...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29792200/wedge-shaped-microfluidic-chip-for-circulating-tumor-cells-isolation-and-its-clinical-significance-in-gastric-cancer
#5
Chaogang Yang, Nangang Zhang, Shuyi Wang, Dongdong Shi, Chunxiao Zhang, Kan Liu, Bin Xiong
BACKGROUND: Circulating tumor cells (CTCs) have great potential in both basic research and clinical application for the managements of cancer. However, the complicated fabrication processes and expensive materials of the existing CTCs isolation devices, to a large extent, limit their clinical translation and CTCs' clinical value. Therefore, it remains to be urgently needed to develop a new platform for achieving CTCs detection with low-cost, mass-producible but high performance. METHODS: In the present study, we introduced a novel wedge-shaped microfluidic chip (named CTC-ΔChip) fabricated by two pieces of glass through wet etching and thermal bonding technique for CTCs isolation, which achieved CTCs enrichment by different size without cell surface expression markers and CTCs identification with three-color immunocytochemistry method (CK+/CD45-/Nucleus+)...
May 23, 2018: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29792170/liddle-s-like-syndrome-associated-with-nephrotic-syndrome-secondary-to-membranous-nephropathy-the-first-case-report
#6
Eriko Yamaguchi, Kazuhiro Yoshikawa, Izaya Nakaya, Karen Kato, Yoshikazu Miyasato, Terumasa Nakagawa, Yutaka Kakizoe, Masashi Mukoyama, Jun Soma
BACKGROUND: Liddle's syndrome is a rare monogenic form of hypertension caused by truncating or missense mutations in the C termini of the epithelial sodium channel (ENaC) β or γ subunits. Patients with this syndrome present with early onset of hypertension, hypokalemia, metabolic alkalosis, hyporeninemia and hypoaldosteronism, and a potassium-sparing diuretics (triamterene or amiloride) can drastically improves the disease condition. Although elderly patients having these characteristics were considered to have Liddle's syndrome or Liddle's-like syndrome, no previous report has indicated that Liddle's-like syndrome could be caused by nephrotic syndrome of primary glomerular disease, which is characterized by urinary excretion of > 3 g of protein/day plus edema and hypoalbuminemia, or has explained how the activity function of ENaC could be affected in the setting of high proteinuria...
May 23, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29791782/obesity-leads-to-impairments-in-the-morphology-and-organization-of-human-skeletal-muscle-lipid-droplets-and-mitochondrial-networks-which-are-resolved-with-gastric-bypass-surgery-induced-improvements-in-insulin-sensitivity
#7
Marianne D Kristensen, Signe M Petersen, Kjestine E Møller, Michael T Lund, Merethe Hansen, Christina N Hansen, Julie Courraud, Jørn W Helge, Flemming Dela, Clara Prats
AIMS: Skeletal muscle lipid stores and mitochondrial function have been appointed as key players in obesity-induced insulin resistance. However, there are conflicting reports in the literature based on in vitro quantitative measurements. Here we test the hypothesis that it is not the quantity but the quality that matters. METHODS: The present study combines quantitative and qualitative structural measurements of lipid stores and mitochondrial dynamics in skeletal muscle from lean subjects, and subjects with morbid obesity, with and without type 2 diabetes, before and after gastric bypass surgery...
May 23, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29791656/long-term-maintenance-of-glucose-and-lipid-concentrations-after-roux-en-y-gastric-bypass
#8
Fernanda Cristina Carvalho Mattos Magno, Priscila Alves Medeiros de Sousa, Marcelo Paiva Rodrigues, Lícia Lopes Pio Pereira, José Egídio Paulo de Oliveira, Eliane Lopes Rosado, João Régis Ivar Carneiro
OBJECTIVE: Roux-en-Y gastric bypass (RYGB) reduces body weight and the comorbidities associated with obesity. The aim of this study was to evaluate whether glucose and lipid profiles were maintained during a 5-year follow-up period after RYGB. SUBJECTS AND METHODS: Anthropometric and laboratory data from 323 patients who had undergone this operation were analyzed. Differences in laboratory variables between the baseline and 12, 24, 36, 48 and 60 months postoperatively (PO) were assessed using a one-way ANOVA test to compare the three groups...
May 17, 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29791595/microrna-3129-promotes-cell-proliferation-in-gastric-cancer-cell-line-sgc7901-via-positive-regulation-of-prb
#9
Shaofeng Yang, Nan Sheng, Lili Pan, Jing Cao, Jiao Liu, Ran Ma
Several microRNAs (miRNAs) have been reported as oncogenes or tumor suppressors in many cancers, including gastric cancer (GC). However, the role and molecular mechanism of miR-3129 in GC is largely unknown. We aimed to explore the function and the underlying molecular mechanism of miR-3129 in GC. Cancer tissues and corresponding adjacent tissues were collected from 50 patients with GC, and the expression of miR-3129 was detected by RT-qPCR. The expression of miR-3129 and pRb in human GC cell line SCG7091 was altered by transient transfection...
2018: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29791425/-endoscopic-submucosal-dissection-of-a-transpyloric-early-gastric-c%C3%A3-ncer-a-case-report-and-literature-review
#10
Juan Antonio Chirinos Vega, César García Delgado, Alfonso Delgado Vergara
The endoscopic sumucosal disection (ESD) is an advanced endoscopic technique that achieves the curative resection of superficial neoplasms of the gastrointestinal tract, getting block exeresis with margins free of neoplasia avoiding surgery. However, tumors located in the esophagogastric junction, or pylorus, are technically more complex to resect by ESD. When a neoplasm settles in the pylorus, the anatomical characteristics of this region can affect the adequate assessment of the margins and the performance of the procedure...
January 2018: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/29790696/lotus-tetragonolobus-ulex-europaeus-maackia-amurensis-and-arachis-hypogaea-peanut-lectins-influence-the-binding-of-helicobacter-pylori-to-gastric-carbohydrates
#11
Iwona Radziejewska, Małgorzata Borzym-Kluczyk, Katarzyna Leszczyńska
BACKGROUND: The carbohydrates of gastric mucins and other sugar structures are involved in interactions with Helicobacter pylori (H. pylori) adhesins. The binding of bacteria to mucins can protect the epithelium from direct contact with the pathogen and from developing infection because of a specific barrier created by the mucus. The pathogen also interacts with other carbohydrate structures of the epithelium. Direct contact between the bacteria and the epithelial cells facilitates infection development...
May 17, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/29790675/loss-of-cyclin-dependent-kinase-like-2-predicts-poor-prognosis-in-gastric-cancer-and-its-overexpression-suppresses-cells-growth-and-invasion
#12
Chia-Lang Fang, Yih-Huei Uen, Han-Kun Chen, You-Cheng Hseu, Chih-Chan Lin, Shih-Ting Hung, Ding-Ping Sun, Kai-Yuan Lin
Cyclin-dependent kinase-like 2 (CDKL2), a new member of the cyclin-dependent kinase family, may be involved in gastric cancer (GC) progression. Thus, we conducted this study to explore the clinical effect of CDKL2 in GC. Immunohistochemistry was used to measure CDKL2 levels in gastric tissues. The association of a high CDKL2 level with clinical and pathological characteristics, and the correlation between the CDKL2 level and disease-free and overall survival were analyzed. Transfection was employed to overexpress CDKL2 in GC cells and to investigate the effect of CDKL2 overexpression on cell proliferation and invasion...
May 23, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29790358/-esophagogastric-junction-and-its-tumours-comments-to-definition-and-classification
#13
Petr Lochman, Tomáš Dušek, Jiří Páral
In spite of the worldwide decreasing incidence of gastric cancer the number of esophagogastric junction and proximal third of stomach carcinomas has been gradually growing up. The reason of that is an increasing incidence of reflux esophagitis with Barrett´s metaplasia and a successful eradication of Helicobacter pylori infection. The aim of this work is to provide various views on definition of the esophagogastric junction and to give an overview of tumours classification schemes being used.
2018: Casopís Lékar̆ů C̆eských
https://www.readbyqxmd.com/read/29790169/met-in-gastric-cancer-with-liver-metastasis-the-relationship-between-met-amplification-and-met-overexpression-in-primary-stomach-tumors-and-liver-metastasis
#14
Han S Kim, Hong J Chon, Hyunki Kim, Su-Jin Shin, Volker Wacheck, Aaron M Gruver, Jong S Kim, Sun Y Rha, Hyun C Chung
BACKGROUND AND OBJECTIVES: Although MET amplification/overexpression was observed in a subset of gastric cancer (GC) patients, the relationship between MET amplification/overexpression in primary GC and liver metastasis was unclear. METHODS: GC samples and matched liver metastases (N = 47) were analyzed by fluorescence/silver in-situ hybridization (FISH/SISH) and by immunohistochemistry for MET amplification and MET expression, respectively. MET-copy number (CN) and Met expression data from The Cancer Genome Atlas Stomach Adenocarcinoma (TCGA-STAD, N = 356) were also analyzed...
May 22, 2018: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29790130/an-analysis-of-mid-term-complications-weight-loss-and-type-2-diabetes-resolution-of-stomach-intestinal-pylorus-sparing-surgery-sips-versus-roux-en-y-gastric-bypass-rygb-with-three-year-follow-up
#15
Austin Cottam, Daniel Cottam, Hinali Zaveri, Samuel Cottam, Amit Surve, Walter Medlin, Christina Richards
BACKGROUND: For many years, the Roux-en-Y Gastric Bypass (RYGB) was considered a good balance of complications and weight loss. According to several short-term studies, single anastomosis duodenal switch or stomach intestinal pylorus sparing surgery (SIPS) offers similar weight loss to RYGB with fewer complications and better diabetes resolution. No one has substantiated mid-term complication and nutritional differences between these two procedures. This paper seeks to compare complication and nutritional outcomes between RYGB and SIPS...
May 22, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29790128/evidence-that-the-length-of-bile-loop-determines-serum-bile-acid-concentration-and-glycemic-control-after-bariatric-surgery
#16
Adriana Mika, Lukasz Kaska, Monika Proczko-Stepaniak, Agnieszka Chomiczewska, Julian Swierczynski, Ryszard T Smolenski, Tomasz Sledzinski
BACKGROUND: Bariatric surgery contributes to the improvement in glucose metabolism that may be related to a postoperative increase in serum bile acids (BAs). Three commonly used types of bariatric procedures, laparoscopic sleeve gastrectomy (LSG) (without creation of a bile loop), Roux-en-Y gastric bypass (RYGB), and omega-loop gastric bypass (OLGB) (with creation of shorter 100-150 cm and longer 200-280 cm bile loops, respectively), differ in their effects on glycemic control. The aim of the study was to compare the effects of various bariatric procedures on serum BA concentration and glucose homeostasis...
May 22, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29790028/stimulus-for-glucagon-like-peptide-1-secretion-in-rats
#17
Yu V Natochin, A V Kutina, A S Marina, E I Shakhmatova
Blood concentration of glucagon-like peptide-1 (GLP-1) increased 5 min after per os administration of water, sodium chloride solution, or glucose solution. Changes in blood osmolality or blood glucose level did not stimulate GLP-1 release. A method of short-term increase in the gastric capacity in rats using an inflating balloon attached to the Foley catheter was developed in order to test the hypothesis that excitation of the upper gastrointestinal tract receptors is a primary signal for the GLP-1 secretion during oral intake of the substances...
March 2018: Doklady Biological Sciences: Proceedings of the Academy of Sciences of the USSR, Biological Sciences Sections
https://www.readbyqxmd.com/read/29789971/compliance-with-an-enhanced-recovery-after-a-surgery-program-for-patients-undergoing-gastrectomy-for-gastric-carcinoma-a-phase-2-study
#18
Mi Ran Jung, Seong Yeob Ryu, Young Kyu Park, Oh Jeong
BACKGROUND: Enhanced recovery after surgery (ERAS) programs have gained widespread acceptance in different fields of major surgery. However, most elements of perioperative care in ERAS are based on practices that originated from colorectal surgery. This study investigated compliance with the main elements of ERAS for patients undergoing gastrectomy for gastric carcinoma. METHODS: This phase 2 study enrolled 168 patients undergoing elective gastrectomy for gastric carcinoma...
May 22, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29789860/gastric-perforation-following-cardiopulmonary-resuscitation
#19
Ashish Verma, Muhammad Hassaan Shahid, John Wesley Boldt
No abstract text is available yet for this article.
May 22, 2018: Intensive Care Medicine
https://www.readbyqxmd.com/read/29789827/effect-of-the-monostearate-monopalmitate-ratio-on-the-oral-release-of-active-agents-from-monoacylglycerol-organogels
#20
F R Lupi, V Mancina, N Baldino, O I Parisi, L Scrivano, D Gabriele
The delivery of active agents from organogels is becoming an important topic owing to the possibility of releasing, in a controlled way, lipophilic agents. Controlled release from foods is a topic with increasing relevance owing to the growing industrial interest towards functional or medical foods, i.e. foods containing nutraceutical agents or drugs. Anyway, release properties are related to the rheological properties of organogels, and, therefore, a deep knowledge of their microstructure and physical characteristics is necessary to design carriers with expected release properties...
May 23, 2018: Food & Function
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