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Pancreatitys

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https://www.readbyqxmd.com/read/28532044/pancreatic-differentiation-of-induced-pluripotent-stem-cells-in-activin-a-grafted-gelatin-poly-lactide-co-glycolide-nanoparticle-scaffolds-with-induction-of-ly294002-and-retinoic-acid
#1
Yung-Chih Kuo, Yu-Chuan Liu, Rajendiran Rajesh
The differentiation of induced pluripotent stem cells (iPSCs) in biomaterial scaffolds is an emerging area for biomedical applications. This study proposes, for the first time, the production of pancreatic cells from iPSCs in gelatin-poly(lactide-co-glycolide) nanoparticle (PLGA NP) scaffolds. The porosity and swelling ratio of the scaffolds decreased with increases in gelatin and PLGA NP concentrations. The adhesion efficiency of iPSCs in gelatin-PLGA NP scaffolds was found to be higher at 6.7% (w/w) PLGA NP...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28530609/phenolic-compounds-of-the-australian-native-herb-prostanthera-rotundifolia-and-their-biological-activities
#2
Kitty S C Tang, Izabela Konczak, Jian Zhao
The chemical identity and bioactivities of phenolic components of the Australian native herb Prostanthera rotundifolia were studied. Phenolic compounds were extracted with 80% (v/v) aqueous methanol and purified by liquid chromatography. The antioxidant capacity of the extract and its inhibiting activity against α-glucosidase, pancreatic lipase and hyaluronidase were determined. Phenolic compounds were identified by a combination of HPLC-PDA, LC-high resolution MS (LC-HRMS), LC-tandem MS (LC-MS/MS) and nuclear magnetic resonance (NMR) spectroscopy...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28530445/gamma-knife-treatment-of-recurrent-cns-metastases-of-pancreatic-origin-a-case-report-and-review-of-the-literature
#3
Subha Perni, Tony J Wang, Jerry Lesser, Christopher Mandigo, Steven R Isaacson, David P Horowitz
Brain metastases (BM) of pancreatic origin are extremely rare. We review the literature around BM of pancreatic origin and describe a 38-year-old woman who developed BM 10 months after pancreaticoduodenectomy for treatment of pancreatic adenocarcinoma. She underwent resection and fractionated stereotactic radiotherapy followed by re-resection and Gamma Knife radiosurgery (GKRS) when the lesion recurred. She then developed two new BM, and was treated with GKRS. The patient is alive without progression 38 months after her most recent GKRS...
April 2017: CNS Oncology
https://www.readbyqxmd.com/read/28530258/enhanced-recovery-program-erp-in-major-laryngeal-surgery-building-a-protocol-and-testing-its-feasibility
#4
M Gemma, S Toma, F Lira Luce, L Beretta, M Braga, M Bussi
Enhanced recovery programs (ERP) represent a multimodal approach to perioperative patient care. The benefits of ERP are well demonstrated in colorectal surgery and Enhanced Recovery After Surgery (ERAS®) programs, that epitomise the ERP concept, have being introduced in different specialties, including vascular, gastric, pancreatic, urogynecologic and orthopaedic surgery. However, no ERP has been proposed for head and neck surgery. We developed an expert-opinion-based ERP for laryngeal surgery based on the key principles of colorectal surgery ERAS®...
May 22, 2017: Acta Otorhinolaryngologica Italica
https://www.readbyqxmd.com/read/28530210/-role-of-the-bone-marrow-derived-stem-cells-in-pancreatic-inflammatory-disorders
#5
EDITORIAL
Krzysztof Dąbkowski, Anna Łabędź-Masłowska, Ewa Zuba-Surma, Teresa Starzyńska
Various independent studies indicate involvement of different populations of bone marrow-derived stem cells in the process of tissue regeneration. In inflammatory disorders bone marrow stem cells are mobilized into peripherial blood and further to different organs, where they take part in tissue regeneration. Experimental studies have shown that bone marrow stem cells play a pivotal role in regeneration of endo and egzocrine pancreas and have a role in pathogenesis of pancreatitis, diabetes and pancreatic neoplasms...
April 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28530019/men1-in-children-and-adolescents-data-from-patients-of-a-regional-referral-center-for-hereditary-endocrine-tumors
#6
Letizia Vannucci, Francesca Marini, Francesca Giusti, Simone Ciuffi, Francesco Tonelli, Maria Luisa Brandi
PURPOSE: To retrospectively evaluate the age of onset of MEN1-associated lesions in a group of affected children and adolescents and to compare the clinical features of our series with the evidence derived from the literature. METHODS: The study population consisted of 22 Italian children and adolescents (age 6-31 years at the time of the inclusion in this study) all with a clinical and/or a genetic diagnosis of MEN1 performed before the age of 16 who have been followed-up regularly from 1998 to 2016 at the Regional Referral Center for Hereditary Endocrine Tumors...
May 22, 2017: Endocrine
https://www.readbyqxmd.com/read/28529809/aberrant-pancreatic-tissue-in-a-mediastinal-enteric-duplication-cyst-a-rarity-with-review-of-literature
#7
Meha Mansi, Nidhi Mahajan, Sonam Mahana, C R Gupta, Anup Mohta
Mediastinal enteric duplication cysts are a rare congenital malformation encountered mainly in neonates and infants. It is a distinct entity within the family of foregut duplication cysts. It can present with respiratory distress due to mass effect and hence surgical excision is the preferred treatment. Histologically, it is characterised by a double layered smooth muscle wall with intestinal lining epithelium. We report a case of mediastinal enteric duplication cyst with aberrant pancreatic tissue in a neonate due to its rarity and early presentation...
2017: Case Reports in Gastrointestinal Medicine
https://www.readbyqxmd.com/read/28529742/intraductal-tubulopapillary-neoplasm-accompanied-by-invasive-carcinoma-of-the-pancreas-a-case-report-and-review-of-the-literature
#8
Li Niu, Zhigao Xu, Huan Liu, Hong Cao, Guifang Yang
Intraductal tubulopapillary neoplasms (ITPNs) are rare pancreatic neoplasms accounting for ~0.4% of pancreatic tumors. However, their clinicopathological characteristics have not been clearly determined and the number of available clinical studies on this type of tumor is limited at present. Due to the rare incidence of ITPN, diagnosis is often delayed. We herein present a unique case of a 38-year-old man who was diagnosed with ITPN accompanied with invasive carcinoma of the pancreas and underwent total pancreatectomy...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28529741/pazopanib-induced-asymptomatic-radiological-acute-pancreatitis-a-case-report
#9
Iosune Baraibar, Almudena Quílez, Diego Salas, Marta Román, Christian Rolfo, José L Pérez-Gracia, Ignacio Gil-Bazo
The universal clinical use of multi-targeted tyrosine kinase inhibitors (TKIs) in patients diagnosed with advanced renal cell carcinoma (RCC) has significantly prolonged their estimated survival times and their quality of life. However, several adverse side-effects associated predominantly with the inhibition of the vascular endothelial growth factor receptor by these drugs may prove to be potentially life-threatening. One adverse event that is only rarely observed with the use of TKIs in this clinical setting is acute pancreatitis...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28529740/copy-number-variation-and-protein-expression-of-dot1l-in-pancreatic-adenocarcinoma-as-a-potential-drug-target
#10
Heike Loeser, Dirk Waldschmidt, Fabian Kuetting, Carina Heydt, Thomas Zander, Patrick Plum, Hakan Alakus, Reinhard Buettner, Alexander Quaas
Adenocarcinoma of the pancreas has a poor prognosis. At present, no relevant personalized targets have been identified. Sequencing studies have implicated gene alterations of disruptor of telomeric silencing 1 like histone lysine methyltransferase (DOT1L) in pancreatic adenocarcinoma. DOT1L is part of the histone modification system and catalyzes methylation of H3K79, which is crucial in cell signaling and DNA damage repair. DOT1L is considered to be a target of therapy in mixed lineage leukemia gene-deficient leukemia cases and a potential target in breast carcinoma...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28529726/pancreatic-neuroendocrine-tumors-the-basics-the-gray-zone-and-the-target
#11
REVIEW
Dionysia Kelgiorgi, Christos Dervenis
Pancreatic neuroendocrine tumors (PanNETs) manifest with a range of symptoms and pose a therapeutic challenge. A team approach, in which many specialists come together, is necessary in the quest for the best patient-tailored treatment. Disciplines such as oncology, surgery, basic science, endocrinology, radiology, and nuclear medicine need to work side by side, equally contributing to patient care and to advancing our better understanding of this fascinating disease.
2017: F1000Research
https://www.readbyqxmd.com/read/28529645/tumor-penetrating-theranostic-nanoparticles-for-enhancement-of-targeted-and-image-guided-drug-delivery-into-peritoneal-tumors-following-intraperitoneal-delivery
#12
Ning Gao, Erica N Bozeman, Weiping Qian, Liya Wang, Hongyu Chen, Malgorzata Lipowska, Charles A Staley, Y Andrew Wang, Hui Mao, Lily Yang
The major obstacles in intraperitoneal (i.p.) chemotherapy of peritoneal tumors are fast absorption of drugs into the blood circulation, local and systemic toxicities, inadequate drug penetration into large tumors, and drug resistance. Targeted theranostic nanoparticles offer an opportunity to enhance the efficacy of i.p. therapy by increasing intratumoral drug delivery to overcome resistance, mediating image-guided drug delivery, and reducing systemic toxicity. Herein we report that i.p. delivery of urokinase plasminogen activator receptor (uPAR) targeted magnetic iron oxide nanoparticles (IONPs) led to intratumoral accumulation of 17% of total injected nanoparticles in an orthotopic mouse pancreatic cancer model, which was three-fold higher compared with intravenous delivery...
2017: Theranostics
https://www.readbyqxmd.com/read/28529632/imaging-of-chemokine-receptor-4-expression-in-neuroendocrine-tumors-a-triple-tracer-comparative-approach
#13
Rudolf A Werner, Alexander Weich, Takahiro Higuchi, Jan S Schmid, Andreas Schirbel, Michael Lassmann, Vanessa Wild, Martina Rudelius, Theodor Kudlich, Ken Herrmann, Michael Scheurlen, Andreas K Buck, Saskia Kropf, Hans-Jürgen Wester, Constantin Lapa
C-X-C motif chemokine receptor 4 (CXCR4) and somatostatin receptors (SSTR) are overexpressed in gastro-entero-pancreatic neuroendocrine tumors (GEP-NET). In this study, we aimed to elucidate the feasibility of non-invasive CXCR4 positron emission tomography/computed tomography (PET/CT) imaging in GEP-NET patients using [(68)Ga]Pentixafor in comparison to (68)Ga-DOTA-D-Phe-Tyr3-octreotide ([(68)Ga]DOTATOC) and (18)F-fluorodeoxyglucose ([(18)F]FDG). Twelve patients with histologically proven GEP-NET (3xG1, 4xG2, 5xG3) underwent [(68)Ga]DOTATOC, [(18)F]FDG, and [(68)Ga]Pentixafor PET/CT for staging and planning of the therapeutic management...
2017: Theranostics
https://www.readbyqxmd.com/read/28529573/comparative-metabolomic-analysis-of-hpac-cells-following-the-acquisition-of-erlotinib-resistance
#14
Sooyeun Lee, Won-Jun Jang, Boyeon Choi, Sang Hoon Joo, Chul-Ho Jeong
Pancreatic cancer is one of the most lethal types of cancer, due to difficulty in early detection and the limited efficacy of available treatments. Erlotinib is used to inhibit the epidermal growth factor receptor for the treatment of pancreatic cancer; however, erlotinib resistance is a major issue and the mechanisms underlying the development of erlotinib resistance remain unclear. To better understand the alterations in tumor metabolism by acquired resistance to erlotinib, an erlotinib-resistant pancreatic cancer cell line (HPAC-ER) was established, followed by a comparison of the metabolic characteristics between these cells and their erlotinib-sensitive parental cells (HPAC)...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28529530/chai-qin-cheng-qi-decoction-and-carbachol-improve-intestinal-motility-by-regulating-protein-kinase-c-mediated-ca-2-release-in-colonic-smooth-muscle-cells-in-rats-with-acute-necrotising-pancreatitis
#15
Chen-Long Zhang, Zi-Qi Lin, Rui-Jie Luo, Xiao-Xin Zhang, Jia Guo, Wei Wu, Na Shi, Li-Hui Deng, Wei-Wei Chen, Xiao-Ying Zhang, Shameena Bharucha, Wei Huang, Robert Sutton, John A Windsor, Ping Xue, Qing Xia
Chai-Qin-Cheng-Qi decoction (CQCQD) improves intestinal motility in acute pancreatitis (AP), but the mechanism(s) require elucidation. We investigated the effects of CQCQD and carbachol, a prokinetic agent, on colonic smooth muscle cells (SMCs) in L-arginine-induced necrotising AP model in rats. In treatment groups, intragastric CQCQD (20 g/kg, 2 hourly × 3 doses) or intraperitoneal carbachol (60 μg/kg) was given 24 hours after induction of AP. Both CQCQD and carbachol decreased the severity of pancreatic and colonic histopathology (all P < 0...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28529270/pancreatic-abscess-in-a-cat-due-to-staphylococcus-aureus-infection
#16
Yuki Nemoto, Tomoya Haraguchi, Takako Shimokawa Miyama, Kosuke Kobayashi, Kaori Hama, Yosuke Kurogouchi, Noriyuki Fujiki, Kenji Baba, Masaru Okuda, Takuya Mizuno
A 16-year-old spayed female American Shorthair cat was presented with lethargy, anorexia, and wamble. Physical and blood examination did not reveal any remarkable findings. Abdominal ultrasonography identified the presence of a localized anechoic structure with a thick wall in contact with the small intestine and adjacent to the liver. Ultrasound-guided fine-needle aspiration of the structure revealed fluid containing numerous cocci and neutrophils. Two days after antibiotic treatment, exploratory laparotomy was performed and the content of the structure was removed before multiple lavages...
May 22, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28529153/model-of-vascular-desmoplastic-multispecies-tumor-growth
#17
Chin F Ng, Hermann B Frieboes
We present a three-dimensional nonlinear tumor growth model composed of heterogeneous cell types in a multicomponent-multispecies system, including viable, dead, healthy host, and extra-cellular matrix (ECM) tissue species. The model includes the capability for abnormal ECM dynamics noted in tumor development, as exemplified by pancreatic ductal adenocarcinoma, including dense desmoplasia typically characterized by a significant increase of interstitial connective tissue. An elastic energy is implemented to provide elasticity to the connective tissue...
May 18, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/28528374/pancreatic-cysts-and-guidelines
#18
REVIEW
James J Farrell
Pancreatic cysts, especially incidental asymptomatic ones seen on noninvasive imaging such as CT or MR imaging, remain a clinical challenge. The etiology of such cysts may range from benign cysts without any malignant potential such as pancreatic pseudocysts and serous cystadenomas to premalignant or frankly malignant cysts such as mucinous cystic neoplasms, intraductal papillary mucinous neoplasms, cystic degeneration associated with solid tumors such as pancreatic ductal adenocarcinoma or pancreatic endocrine neoplasms, and solid pseudopapillary neoplasms...
May 20, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28528268/optimistic-honesty-understanding-surgeon-and-patient-perspectives-on-hopeful-communication-in-pancreatic-cancer-care
#19
Kim Blakely, Paul J Karanicolas, Frances C Wright, Lesley Gotlib Conn
BACKGROUND: Prognosis conversations between surgical oncologists and patients with pancreatic cancer are critically important and challenging. Surgeons and their patients often have discrepant understandings of prognosis despite extensive conversations. Little is known about how surgeons approach prognosis conversations with these patients; patients' experiences with these conversations are also not well understood. This qualitative study sought to better understand surgeon and patient perspectives on communication in pancreatic cancer care with a view toward improvement...
May 17, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28528097/protein-digestomic-analysis-reveals-the-bioactivity-of-deer-antler-velvet-in-simulated-gastrointestinal-digestion
#20
Yang Yu, Yan Jin, Fangjun Wang, Jiaze Yan, Yanxia Qi, Mingliang Ye
Proteins are the most prominent bioactive component in deer antler velvet. The aim of the present study was to track the fate of protein of antler velvet by protein digestomics. The peptide profile identified by LC-MS/MS and the in vitro bioactivity of antler velvet aqueous extract (AAE) were investigated in simulated gastrointestinal digestion. A total of 23, 387 and 417 peptides in AAE, gastric and pancreatic digests were identified using LC-MS/MS, respectively. Collagens, the predominant proteins, released 34 peptides in gastric digests and 146 peptides in pancreatic digests...
June 2017: Food Research International
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