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Pancreatic function tests

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https://www.readbyqxmd.com/read/28101805/ketogenic-diet-in-pyruvate-dehydrogenase-complex-deficiency-short-and-long-term-outcomes
#1
Kalliopi Sofou, Maria Dahlin, Tove Hallböök, Marie Lindefeldt, Gerd Viggedal, Niklas Darin
OBJECTIVES: Our aime was to study the short- and long-term effects of ketogenic diet on the disease course and disease-related outcomes in patients with pyruvate dehydrogenase complex deficiency, the metabolic factors implicated in treatment outcomes, and potential safety and compliance issues. METHODS: Pediatric patients diagnosed with pyruvate dehydrogenase complex deficiency in Sweden and treated with ketogenic diet were evaluated. Study assessments at specific time points included developmental and neurocognitive testing, patient log books, and investigator and parental questionnaires...
January 18, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28101303/efficacy-of-multiple-biliary-stenting-for-refractory-benign-biliary-strictures-due-to-chronic-calcifying-pancreatitis
#2
Hiroshi Ohyama, Rintaro Mikata, Takeshi Ishihara, Yuji Sakai, Harutoshi Sugiyama, Shin Yasui, Toshio Tsuyuguchi
AIM: To investigate endoscopic therapy efficacy for refractory benign biliary strictures (BBS) with multiple biliary stenting and clarify predictors. METHODS: Ten consecutive patients with stones in the pancreatic head and BBS due to chronic pancreatitis who underwent endoscopic therapy were evaluated. Endoscopic insertion of a single stent failed in all patients. We used plastic stents (7F, 8.5F, and 10F) and increased stents at intervals of 2 or 3 mo. Stents were removed approximately 1 year after initial stenting...
January 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28100476/chronic-anemic-hypoxemia-attenuates-glucose-stimulated-insulin-secretion-in-fetal-sheep
#3
Joshua S Benjamin, Christine B Culpepper, Laura D Brown, Stephanie R Wesolowski, Sonnet S Jonker, Melissa Ann Davis, Sean W Limesand, Randall B Wilkening, William W Hay, Paul J Rozance
Fetal insulin secretion is inhibited by acute hypoxemia. The relationship between prolonged hypoxemia and insulin secretion, however, is less well defined. To test the hypothesis that prolonged fetal hypoxemia impairs insulin secretion, studies were performed in sheep fetuses that were bled to anemic conditions for 9 ± 0 days (anemic, n=19) and compared to control fetuses (n=15). Arterial hematocrit and oxygen content were 34% and 52% lower, respectively, in anemic vs. control fetuses (P<0.0001). Plasma glucose concentrations were 21% higher in the anemic group (P<0...
January 18, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28099934/tolfenamic-acid-induced-alterations-in-genes-and-pathways-in-pancreatic-cancer-cells
#4
Umesh T Sankpal, Steve Goodison, Michelle Jones-Pauley, Myrna Hurtado, Fan Zhang, Riyaz Basha
Non-steroidal anti-inflammatory drugs (NSAIDs) are being tested extensively for their role in the treatment and prevention of several cancers. Typically NSAIDs exhibit anti-tumor activities via modulation of cyclooxygenase (COX)-dependent mechanisms, however, an anti-cancer NSAID tolfenamic acid (TA) is believed to work through COX-independent pathways. Results from our laboratory and others have demonstrated the anti-cancer activity of TA in various cancer models including pancreatic cancer. TA has been shown to modulate certain cellular processes including, apoptosis, reactive oxygen species and signaling...
January 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28099256/diagnosis-of-chronic-pancreatitis-incorporating-endosonographic-features-demographics-and-behavioral-risk
#5
Linda S Lee, Ying P Tabak, Vivek Kadiyala, Xiaowu Sun, Shadeah Suleiman, Richard S Johannes, Peter A Banks, Darwin L Conwell
OBJECTIVES: Diagnosing chronic pancreatitis remains challenging. Endoscopic ultrasound (EUS) is utilized to evaluate pancreatic disease. Abnormal pancreas function test is considered the "nonhistologic" criterion standard for chronic pancreatitis. We derived a prediction model for abnormal endoscopic pancreatic function test (ePFT) by enriching EUS findings with patient demographic and pancreatitis behavioral risk characteristics. METHODS: Demographics, behavioral risk characteristics, EUS findings, and peak bicarbonate results were collected from patients evaluated for pancreatic disease...
January 18, 2017: Pancreas
https://www.readbyqxmd.com/read/28097011/a-selective-gpr40-ffar1-agonist-ly2881835-provides-immediate-and-durable-glucose-control-in-rodent-models-of-type-2-diabetes
#6
Yanyun Chen, Min Song, Jonathan P Riley, Charlie C Hu, Xianbu Peng, Donalyn Scheuner, Krister Bokvist, Pranab Maiti, Steven D Kahl, Chahrzad Montrose-Rafizadeh, Chafiq Hamdouchi, Anne Reifel Miller
LY2881835 is a selective, potent, and efficacious GPR40 agonist. The objective of the studies described here was to examine the pharmacological properties of LY2881835 in preclinical models of T2D. Significant increases in insulin secretion were detected when LY2881835 was tested in primary islets from WT mice but not in islets from GPR40 KO mice. Furthermore, LY2881835 potentiated glucose stimulated insulin secretion in normal lean mice. Acute administration of LY2881835 lowered glucose during OGTTs in WT mice but not in GPR40 KO mice...
December 2016: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28095460/fecal-fat-analyses-in-chronic-pancreatitis-importance-of-fat-ingestion-before-stool-collection
#7
Friedemann Erchinger, Trond Engjom, Palwasha Jurmy, Erling Tjora, Odd Helge Gilja, Georg Dimcevski
OBJECTIVE: Quantitative determination of fecal fat still is the gold standard for measuring malabsorption. We evaluated the importance of standardized food intake before and under the collection of feces. MATERIAL AND METHODS: In a project, evaluating patients with suspected chronic pancreatitis (CP) and healthy volunteers (HC), stools were collected for 72 hours coupled to registration of nutritional intake over five consecutive days. Patient groups were created by a modified Layer score, which includes imaging findings, clinical parameters and pancreas function testing...
2017: PloS One
https://www.readbyqxmd.com/read/28093324/synthesis-characterization-and-in-vitro-antitumor-activity-of-the-polyethylene-glycol-350-and-1000-succinate-derivatives-of-the-tocopherol-and-tocotrienol-isomers-of-vitamin-e
#8
Ahmed Abu-Fayyad, Sami Nazzal
Vitamin E refers to a group of saturated tocopherol (T) isomers and the biologically more active unsaturated tocotrienol (T3) isomers. PEGylated α-tocopherol, commercially known as Vitamin E TPGS, has been used as an emulsifier and therapeutic agent for children with vitamin E deficiency. Limited information, however, is available about the PEG conjugates of the tocotrienol isomers of vitamin E. The current work was therefore undertaken to synthesize and characterize the water soluble polyethylene glycol (PEG 350 and 1000) derivatives of T and T3...
January 13, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28093301/protocol-driven-management-of-suspected-common-duct-stones
#9
Anthony Manning, Richard Frazee, Stephen Abernathy, Claire Isbell, Travis Isbell, Justin Regner, Yolanda Munoz Maldanado, Randall Smith
INTRO: Common duct stones can be diagnosed by magnetic resonance cholangiopancreatography (MRCP), endoscopic ultrasound/endoscopic retrograde cholangiopancreatography (EUS/ERCP), and intra-operative cholangiogram (IOC). In 2015, our group adopted a standard approach of preoperative EUS/ERCP followed by laparoscopic cholecystectomy for patients with an admission bilirubin over 4.0 (mg/dL). For bilirubin less than 4.0, laparoscopic cholecystectomy with IOC was the initial procedure. Post-operative EUS/ERCP with endoscopic sphincterotomy was pursued for positive IOC...
January 13, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28092764/common-deregulated-gene-expression-profiles-and-morphological-changes-in-developing-zebrafish-larvae-exposed-to-environmental-relevant-high-to-low-concentrations-of-glucocorticoids
#10
Qiyu Chen, Caixia Li, Zhiyuan Gong, Eric Chun Yong Chan, Shane A Snyder, Siew Hong Lam
Synthetic glucocorticoids have been detected in environmental waters and their biological potency have raised concerns of their impact on aquatic vertebrates especially fish. In this study, developing zebrafish larvae exposed to representative glucocorticoids (dexamethasone, prednisolone and triamcinolone) at 50 pM to 50 nM from 3 h post-fertilisation to 5 days post-fertilisation were investigated. Microarray analysis identified 1255, 1531, and 2380 gene probes, which correspondingly mapped to 660, 882 and 1238 human/rodent homologs, as deregulated by dexamethasone, prednisolone and triamcinolone, respectively...
January 6, 2017: Chemosphere
https://www.readbyqxmd.com/read/28090321/gm-csf-signalling-blockade-and-chemotherapeutic-agents-act-in-concert-to-inhibit-the-function-of-myeloid-derived-suppressor-cells-in-vitro
#11
Tessa Gargett, Susan N Christo, Timothy R Hercus, Nazim Abbas, Nimit Singhal, Angel F Lopez, Michael P Brown
Immune evasion is a recently defined hallmark of cancer, and immunotherapeutic approaches that stimulate an immune response to tumours are gaining recognition. However tumours may evade the immune response and resist immune-targeted treatment by promoting an immune-suppressive environment and stimulating the differentiation or recruitment of immunosuppressive cells. Myeloid-derived suppressor cells (MDSC) have been identified in a range of cancers and are often associated with tumour progression and poor patient outcomes...
December 2016: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28079868/cdc123-camk1d-gene-rs12779790-polymorphism-and-rs10811661-polymorphism-upstream-of-the-cdkn2a-2b-gene-in-women-with-gestational-diabetes
#12
M Tarnowski, D Malinowski, K Safranow, V Dziedziejko, A Pawlik
OBJECTIVE: Gestational diabetes mellitus (GDM) is carbohydrate intolerance occurring in pregnant women. CDC123/CAMK1D and CDKN2A/2B are associated with increased risk of type 2 diabetes and may affect pancreatic beta cell function. The aim of this study was to examine the association between CDKN2A/2B rs10811661 and CDC123/CAMK1D rs12779790 gene polymorphisms and GDM. STUDY DESIGN: This study included 411 pregnant women. The diagnosis of GDM was based on the International Association of Diabetes and Pregnancy Study Groups criteria...
January 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28075092/diabetes-mellitus-management-of-gastrointestinal-complications
#13
Beth Careyva, Brian Stello
Gastrointestinal disorders are common complications of diabetes mellitus and include gastroparesis, nonalcoholic fatty liver disease, gastroesophageal reflux disease, and chronic diarrhea. Symptoms of gastroparesis include early satiety, postprandial fullness, nausea, vomiting of undigested food, bloating, and abdominal pain. Gastroparesis is diagnosed based on clinical symptoms and a delay in gastric emptying in the absence of mechanical obstruction. Gastric emptying scintigraphy is the preferred diagnostic test...
December 15, 2016: American Family Physician
https://www.readbyqxmd.com/read/28062921/targeted-deletion-of-traf2-allows-immunosuppression-free-islet-allograft-survival-in-mice
#14
Jeanette E Villanueva, Stacey N Walters, Mitsuru Saito, Elisabeth K Malle, Nathan W Zammit, Katherine A Watson, Robert Brink, Nicole L La Gruta, Stephen I Alexander, Shane T Grey
AIMS/HYPOTHESIS: Administration of anti-CD40 ligand (CD40L) antibodies has been reported to allow long-term islet allograft survival in non-human primates without the need for exogenous immunosuppression. However, the use of anti-CD40L antibodies was associated with thromboembolic complications. Targeting downstream intracellular components shared between CD40 and other TNF family co-stimulatory molecules could bypass these complications. TNF receptor associated factor 2 (TRAF2) integrates multiple TNF receptor family signalling pathways that are critical for T cell activation and may be a central node of alloimmune responses...
January 6, 2017: Diabetologia
https://www.readbyqxmd.com/read/28062871/-chronic-diarrhea-in-the-diabetic-a-review-of-the-literature
#15
Juan Sebastián Frías Ordoñez, William Otero Regino
The association of diarrhea with diabetes mellitus has been known for more than 70 years. In diabetic patients its prevalence is around 20%.Its clinical manifestations are diverse, and represents a diagnostic and therapeutic challenge.There are certain diagnoses of higher prevalence in diabetic patients than in the general population.The different related etiologies can be adequately diagnosed through the clinical history and complementary diagnostic tests.The medications used by the diabetic patient to manage their disease often cause chronic diarrhea, so the pharmacological background should be studied at the time of the study of diarrhea...
October 2016: Revista de Gastroenterología del Perú: órgano Oficial de la Sociedad de Gastroenterología del Perú
https://www.readbyqxmd.com/read/28060763/comparison-of-the-tumor-cell-secretome-and-patient-sera-for-an-accurate-serum-based-diagnosis-of-pancreatic-ductal-adenocarcinoma
#16
Shakhawan Mustafa, Longqiang Pan, Aseel Marzoq, Malak Fawaz, Laureen Sander, Felix Rückert, Andrea Schrenk, Christina Hartl, Rico Uhler, Adem Yildirim, Oliver Strobel, Thilo Hackert, Nathalia Giese, Markus W Büchler, Jörg D Hoheisel, Mohamed Saiel Saeed Alhamdani
Pancreatic cancer is the currently most lethal malignancy. Toward an accurate diagnosis of the disease in body liquids, we studied the protein composition of the secretomes of 16 primary and established cell lines of pancreatic ductal adenocarcinoma (PDAC). Compared to the secretome of non-tumorous cells, 112 proteins exhibited significantly different abundances. Functionally, the proteins were associated with PDAC features, such as decreased apoptosis, better cell survival and immune cell regulation. The result was compared to profiles obtained from 164 serum samples from two independent cohorts - a training and a test set - of patients with PDAC or chronic pancreatitis and healthy donors...
January 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28054562/identification-of-a-drug-targeting-an-intrinsically-disordered-protein-involved-in-pancreatic-adenocarcinoma
#17
José L Neira, Jennifer Bintz, María Arruebo, Bruno Rizzuti, Thomas Bonacci, Sonia Vega, Angel Lanas, Adrián Velázquez-Campoy, Juan L Iovanna, Olga Abián
Intrinsically disordered proteins (IDPs) are prevalent in eukaryotes, performing signaling and regulatory functions. Often associated with human diseases, they constitute drug-development targets. NUPR1 is a multifunctional IDP, over-expressed and involved in pancreatic ductal adenocarcinoma (PDAC) development. By screening 1120 FDA-approved compounds, fifteen candidates were selected, and their interactions with NUPR1 were characterized by experimental and simulation techniques. The protein remained disordered upon binding to all fifteen candidates...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28047739/su-d-207b-07-development-of-a-ct-radiomics-based-early-response-prediction-model-during-delivery-of-chemoradiation-therapy-for-pancreatic-cancer
#18
S Klawikowski, J Christian, D Schott, M Zhang, X Li
PURPOSE: Pilot study developing a CT-texture based model for early assessment of treatment response during the delivery of chemoradiation therapy (CRT) for pancreatic cancer. METHODS: Daily CT data acquired for 24 pancreatic head cancer patients using CT-on-rails, during the routine CT-guided CRT delivery with a radiation dose of 50.4 Gy in 28 fractions, were analyzed. The pancreas head was contoured on each daily CT. Texture analysis was performed within the pancreas head contour using a research tool (IBEX)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046990/su-d-202-03-statistical-segmentation-on-quantitative-ct-for-assessing-spatial-tumor-response-during-radiation-therapy-delivery
#19
D Schott, T Schmidt, X Chen, S Klawikowski, G Noid, E Dalah, X Li
PURPOSE: Develop a method to segment regions of interest (ROIs) in tumor with statistically similar Hounsfield unit (HU) values and/or HU changes during chemoradiation therapy (CRT) delivery, to assess spatial tumor treatment response based on daily CTs during CRT delivery. METHODS: Generate a three region map of ROIs with differential HUs, by sampling neighboring voxels around a selected voxel and comparing to the mean of the entire ROI using a t-test. The cumulative distribution function, P, is calculated from the t-test...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28042953/cervical-small-cell-neuroendocrine-tumor-mutation-profiles-via-whole-exome-sequencing
#20
Soo Young Cho, Minhye Choi, Hyo-Jeong Ban, Chang Hyeon Lee, Soojun Park, HanKyeom Kim, Young-Sik Kim, Young Seek Lee, Ji-Yun Lee
Cervical small cell neuroendocrine tumors (CSCNETs) are rare, aggressive neuroendocrine tumors (NETs). Reliable diagnostic and prognostic CSCNET markers are lacking, making diagnosis and prognosis prediction difficult, and treatment strategies limited. Here we provide mutation profiles for five tumor-normal paired CSCNETs using whole exome sequencing (WES). We expanded our assessment of frequently mutated genes to include publicly available data from 55 small intestine neuroendocrine tumors, 10 pancreatic neuroendocrine tumors, 42 small cell lung cancers, six NET cell lines, and 188 cervical cancers, along with our five CSCNETs...
December 22, 2016: Oncotarget
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