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https://www.readbyqxmd.com/read/29029025/insulin-deficient-mouse-%C3%AE-cells-do-not-fully-mature-but-can-be-remedied-through-insulin-replacement-by-islet-transplantation
#1
Adam Ramzy, Majid Mojibian, Timothy J Kieffer
Insulin receptor insufficiency in β-cells leads to impaired insulin secretion and reduced β-cell hyperplasia in response to hyperglycemia. Selective insulin receptor deficiency in β-cells in later embryological development may lead to compensatory β-cell hyperplasia. Though these findings suggest insulin signaling on the β-cell is important for β-cell function, they are confounded by loss of signaling by the IGFs through the insulin receptor. To determine if insulin itself is necessary for β-cell development and maturation, we performed a characterization of pancreatic islets in mice with deletions of both non-allelic insulin genes (Ins1-/-Ins2-/-)...
September 27, 2017: Endocrinology
https://www.readbyqxmd.com/read/29028586/ameliorative-effect-of-borneol-a-natural-bycyclic-monoterpene-against-hyperglycemia-hyperlipidemia-and-oxidative-stress-in-streptozotocin-induced-diabetic-wistar-rats
#2
Madhuri Kodikonda, Prakash Ramachandra Naik
Diabetes mellitus is a major public health problem worldwide. Oxidative stress plays a pivotal role in the pathogenesis of diabetes as it is one of the inevitable outcomes of the cellular process. The present study aims to investigate the putative antihyperglycemic, antihyperlipidemic and antioxidant efficacy of a monoterpene borneol, in comparison with glibenclamide, a standard drug for therapy of diabetes. Diabetes was induced by a single intraperitoneal injection of 40mg/kg body weight. The results of the present study showed a significant increase in the biochemical indices viz...
October 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29028511/a-pictorial-review-of-diagnostic-pitfalls-of-developmental-anomalies-and-variants-in-pancreatic-imaging
#3
REVIEW
Jong Eun Lee, Sang Soo Shin, Shin Jung Kim, Suk Hee Heo, Hyo Soon Lim, Jin Woong Kim, Yong Yeon Jeong
Developmental anomalies and anatomic variants of the pancreas vary widely, and most of them are encountered incidentally during radiologic evaluation. However, some of these anomalies and variants are potentially pathologic and may cause various clinical presentations in childhood or adulthood. The early identification of these entities in various imaging modalities including ultrasound, computed tomography (CT), and magnetic resonance (MR) imaging would be valuable in making correct diagnoses and, in turn, preventing unnecessary additional procedures...
September 19, 2017: Clinical Imaging
https://www.readbyqxmd.com/read/29028441/physiological-and-pharmacological-inductors-of-hsp70-enhance-the-anti-oxidative-defense-mechanisms-of-the-liver-and-pancreas-in-diabetic-rats
#4
Maja Dimitrovska, Mirsada Dervisevik, Natasa Cipanovska, Katerina Gerazova, Suzana Dinevska-Kjovkarovska, Biljana Miova
Heat preconditioning (HP) is a powerful adaptive and protective phenomenon and the heat stress proteins (HSPs) it produces are an important determinant for the development of diabetic complications. Aspirin has been reported to modulate heat shock response in different organisms through increased induction of HSPs and is also known to exert anti-oxidative and radical scavenging effects in diabetes. We estimated the effect of physiological [heat stress (HS), 45min / 41±0.5ºC)] and pharmacological (aspirin treatment) induction of HSP70 on several parameters of oxidative state in the pancreas and liver of diabetic rats...
October 13, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29027063/inflammatory-myofibroblastic-tumors-of-the-breast-with-simultaneous-intracranial-lung-and-pancreas-involvement-ultrasonographic-findings-and-a-review-of-the-literature
#5
Mari Inoue, Tomoyuki Ohta, Hisashi Shioya, Shun Sato, Hiroyuki Takahashi, Norio Nakata, Chiaki Taniguchi, Megumi Hirano, Makiko Nishioka, Hironori Yamakawa
We encountered a case of inflammatory myofibroblastic tumor (IMT) of the breast with simultaneous intracranial, lung, and pancreas involvement. Here, we present the clinical imaging results and report the significance of sonographic findings of breast IMT along with a review of the literature. A 16-year-old girl with a history of subarachnoidal hemorrhage was admitted to our hospital due to tonic-clonic seizure. Computed tomography (CT) and magnetic resonance imaging (MRI) showed multiple intracranial, lung, and pancreas mass lesions and a solitary mass lesion in the right breast...
October 12, 2017: Journal of Medical Ultrasonics
https://www.readbyqxmd.com/read/29026874/australia-and-new-zealand-islets-and-pancreas-transplant-registry-annual-report-2017-pancreas-waiting-list-recipients-and-donors
#6
Angela C Webster, James Hedley, Abhijit Patekar, Paul Robertson, Patrick J Kelly
This is a registry report from the Australia and New Zealand Islet and Pancreas Transplant Registry. We report data for all solid organ pancreas transplant activity from inception in 1984 to end of 2016. Data analysis was performed using Stata Software version 14 (StataCorp, College Station, Tex). From 1984 to 2016 a total of 756 solid organ pancreas transplants have been performed in Australia and New Zealand, in 738 individuals. In 2016, 55 people received a pancreas transplant. These transplants were performed in Auckland (4), Monash (22), and Westmead (29)...
October 2017: Transplantation Direct
https://www.readbyqxmd.com/read/29026690/pancreatic-imaging-current-status-of-clinical-practices-and-small-animal-studies
#7
REVIEW
Ting Yin, Yewei Liu, Ronald Peeters, Yuanbo Feng, Yicheng Ni
Different causative factors acting on the pancreas can result in diseases such as pancreatitis, diabetes and pancreatic tumors. The high incidence and mortality of pancreatic diseases have placed diagnostic imaging in a crucial position in daily clinical practice. In this mini-review article different pancreatic imaging techniques are discussed, from the standard clinical imaging modalities and state of the art clinical magnetic resonance imaging techniques to current situations in pre-clinical pancreatic imaging studies...
September 26, 2017: World Journal of Methodology
https://www.readbyqxmd.com/read/29026529/coordinating-erk-signaling-via-the-molecular-scaffold-kinase-suppressor-of-ras
#8
REVIEW
Danielle Frodyma, Beth Neilsen, Diane Costanzo-Garvey, Kurt Fisher, Robert Lewis
Many cancers, including those of the colon, lung, and pancreas, depend upon the signaling pathways induced by mutated and constitutively active Ras. The molecular scaffolds Kinase Suppressor of Ras 1 and 2 (KSR1 and KSR2) play potent roles in promoting Ras-mediated signaling through the Raf/MEK/ERK kinase cascade. Here we summarize the canonical role of KSR in cells, including its central role as a scaffold protein for the Raf/MEK/ERK kinase cascade, its regulation of various cellular pathways mediated through different binding partners, and the phenotypic consequences of KSR1 or KSR2 genetic inactivation...
2017: F1000Research
https://www.readbyqxmd.com/read/29026446/dna-methylation-links-genetics-fetal-environment-and-an-unhealthy-lifestyle-to-the-development-of-type-2-diabetes
#9
REVIEW
Emma Nilsson, Charlotte Ling
Type 2 diabetes is a complex trait with both environmental and hereditary factors contributing to the overall pathogenesis. One link between genes, environment, and disease is epigenetics influencing gene transcription and, consequently, organ function. Genome-wide studies have shown altered DNA methylation in tissues important for glucose homeostasis including pancreas, liver, skeletal muscle, and adipose tissue from subjects with type 2 diabetes compared with nondiabetic controls. Factors predisposing for type 2 diabetes including an adverse intrauterine environment, increasing age, overweight, physical inactivity, a family history of the disease, and an unhealthy diet have all shown to affect the DNA methylation pattern in target tissues for insulin resistance in humans...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/29025374/the-prognostic-significance-of-cancer-associated-fibroblasts-in-pancreatic-ductal-adenocarcinoma
#10
Hyunjin Park, Yangkyu Lee, Hyejung Lee, Jin-Won Kim, Jin-Hyeok Hwang, Jaihwan Kim, Yoo-Seok Yoon, Ho-Seong Han, Haeryoung Kim
Cancer-associated fibroblasts are abundant in the desmoplastic stroma of pancreatic ductal adenocarcinomas and are considered to play important roles in tumor progression. In this study, we investigated the expression status of secreted protein acidic and rich in cysteine, periostin, fibroblast-activated protein, and the newly developed proCOL11A1 antibody in the stroma of surgically resected pancreatic ductal adenocarcinomas and their prognostic implications. Tissue microarrays were constructed from 155 surgically resected pancreatic ductal adenocarcinomas and paired non-neoplastic pancreata and from another independent set of 48 normal/benign pancreata, and immunohistochemical stains were performed for proCOL11A1, fibroblast-activated protein, secreted protein acidic and rich in cysteine, and periostin...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29025199/effects-of-growth-hormone-on-glucose-metabolism-and-insulin-resistance-in-human
#11
REVIEW
Shin-Hye Kim, Mi-Jung Park
Growth hormone (GH) is important for promotion of somatic growth and the regulation of substrate metabolism. Metabolic action of GH occurs in multiple tissues including the liver, muscle, fat and pancreas either directly or indirectly through insulin-like growth factor 1. The diabetogenic action of GH has been well-described in previous in vivo studies. In this paper, we review the metabolic effects of GH on peripheral tissues focusing on glucose metabolism and insulin resistance, and discuss results from human studies on the long-term effects of GH administration on insulin resistance and hyperglycemia...
September 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29024476/prevalence-and-outcomes-of-cystic-lesions-of-the-transplant-pancreas-the-university-of-wisconsin-experience
#12
Talal M Al-Qaoud, Eric J Martinez, Hans W Sollinger, Dixon B Kaufman, Robert R Redfield, Bridget Welch, Glen Leverson, Jon S Odorico
Literature on the behavior of cystic lesions in pancreas transplants is scarce, and hence a better understanding is warranted. Data on recipients and their respective donors that underwent simultaneous kidney and pancreas, pancreas transplant alone, and pancreas after kidney between 1994-2015 were reviewed (n=1185). Cystic lesions of the transplant pancreas developed in 22 patients (1.8%): 12 pseudocysts, 2 cysts/remnants, 4 intraductal papillary mucinous neoplasms (IPMN), 2 adenocarcinomas, 1 low grade intraepithelial pancreatic neoplasia, and 1 case of polycystic kidney disease...
October 11, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/29024228/de-novo-hepatocellular-carcinoma-post-multivisceral-transplantation-in-a-child
#13
P Tran, S Zhou, L Wang, M Finegold, L Mascarenas, S Alexopolous, Y Genyk, N Kerkar
De novo hepatocellular carcinoma (HCC) post-transplantation in patients without viral hepatitis is extremely rare, with only three reported adult cases in the English literature. Here, we present a case of de novo HCC that developed in a 7-year-old female, who at 8 months of age received a liver, small bowel, spleen, and pancreas transplantation 6.5 years ago for gastroschisis and total parenteral nutrition (TPN)-related cirrhosis. The post-transplant course was complicated by Epstein-Barr virus (EBV) infection, post-transplant lymphoproliferative disease, and subsequent development of multifocal EBV-associated post-transplant smooth muscle tumors (EBV-PTSMT) in the small bowel 1 year and 10 months after transplantation, respectively...
November 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/29023687/a-guide-for-effective-anatomical-vascularization-studies-useful-ex%C3%A2-vivo-methods-for-both-ct-and-mri-imaging-before-dissection
#14
Yohann Renard, Gabriela Hossu, Bailiang Chen, Marine Krebs, Marc Labrousse, Manuela Perez
The objective of this study was to develop a simple and useful injection protocol for imaging cadaveric vascularization and dissection. Mixtures of contrast agent and cast product should provide adequate contrast for two types of ex vivo imaging (MRI and CT) and should harden to allow gross dissection of the injected structures. We tested the most popular contrast agents and cast products, and selected the optimal mixture composition based on their availability and ease of use. All mixtures were first tested in vitro to adjust dilution parameters of each contrast agent and to fine-tune MR imaging acquisition sequences...
October 11, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29023569/pancreatic-and-snake-venom-presynaptically-active-phospholipases-a2-inhibit-nicotinic-acetylcholine-receptors
#15
Catherine A Vulfius, Igor E Kasheverov, Elena V Kryukova, Ekaterina N Spirova, Irina V Shelukhina, Vladislav G Starkov, Tatyana V Andreeva, Grazyna Faure, Marios Zouridakis, Victor I Tsetlin, Yuri N Utkin
Phospholipases A2 (PLA2s) are enzymes found throughout the animal kingdom. They hydrolyze phospholipids in the sn-2 position producing lysophospholipids and unsaturated fatty acids, agents that can damage membranes. PLA2s from snake venoms have numerous toxic effects, not all of which can be explained by phospholipid hydrolysis, and each enzyme has a specific effect. We have earlier demonstrated the capability of several snake venom PLA2s with different enzymatic, cytotoxic, anticoagulant and antiproliferative properties, to decrease acetylcholine-induced currents in Lymnaea stagnalis neurons, and to compete with α-bungarotoxin for binding to nicotinic acetylcholine receptors (nAChRs) and acetylcholine binding protein...
2017: PloS One
https://www.readbyqxmd.com/read/29023012/levels-of-blood-glucose-and-insulin-expression-of-beta-cells-in-streptozotocin-induced-diabetic-rats-treated-with-ethanolic-extract-of-artocarpus-altilis-leaves-and-gaba
#16
Meti Indrowati, Rarastoeti Pratiwi, Rumiyati, Pudji Astuti
BACKGROUND AND OBJECTIVE: Information about the Artocarpus altilis leaf as an antidiabetic associated with the active compounds Gamma Amino Butyric Acid (GABA) is still limited. This study was conducted to determine the effects of ethanolic extract of A. altilis leaves decoction and GABA on blood glucose levels and insulin expression of beta-cells in streptozotocin-induced diabetic rats. MATERIAL AND METHODS: This study was done by using completely randomized design and male Sprague Dewley rats...
2017: Pakistan Journal of Biological Sciences: PJBS
https://www.readbyqxmd.com/read/29022494/colder-environments-are-associated-with-a-greater-cancer-incidence-in-the-female-population-of-the-united-states
#17
Ankit Sharma, Tanu Sharma, Mahaveer S Panwar, Devesh Sharma, Rashmi Bundel, Ryan T Hamilton, James A Radosevich, Chandi C Mandal
Cancer incidence and/or mortality among individuals varies with diet, socio-culture, ethnicity, race, gender, and age. Similarly, environmental temperature modulates many biological functions. To study the effect of environment temperature on cancer incidence, the US population was selected. Because, county-wise cancer incidence rate data of various anatomical site-specific cancers and different races/ethnicities for both males and females are available. Moreover, the differences amongst the aforementioned factors among individuals are much less, as compared to the world population...
October 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/29021697/chronic-saponin-treatment-attenuates-damage-to-the-pancreas-in-chronic-alcohol-treated-diabetic-rats
#18
Mi Ran Choi, Su Min Kwak, Sol Hee Bang, Jo-Eun Jeong, Dai-Jin Kim
BACKGROUND: Chronic heavy alcohol consumption may raise the risk of developing type 2 diabetes mellitus. Saponins inhibit apoptosis of pancreatic islet cells and reduce lipid parameters. The present study was designed to investigate the effect of saponin on chronic ethanol-treated diabetic rats. METHODS: Long-Evans Tokushima Fatty (LETO) and Otsuka Long-Evans Tokushima Fatty (OLETF) rats were pair-fed a Lieber-DeCarli diet with and without 5% ethanol for 12 wks...
October 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/29021473/oncocytic-type-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-with-unusually-low-mucin-production-mimicking-intraductal-tubulopapillary-neoplasm-a-report-of-a-case-diagnosed-by-a-preoperative-endoscopic-biopsy
#19
Yukinari Yoshida, Takao Endo, Eiichi Tanaka, Takefumi Kikuchi, Kimishige Akino, Hiroaki Mita, Yasuyo Adachi, Masahiro Nakamura, Yasushi Adachi, Yoshifumi Ishii, Joe Matsumoto, Satoshi Hirano, Takeo Nitta, Tomoko Mitsuhashi, Yasuo Kato
We herein report the case of a 78-year-old woman with an intraductal tumor with scant mucin production in a moderately dilated main pancreatic duct that resembled an intraductal tubulopapillary neoplasm (ITPN) on imaging. An endoscopic transpapillary forceps biopsy enabled an accurate preoperative diagnosis of the tumor as an oncocytic type intraductal papillary mucinous neoplasm (IPMN) of the pancreas microscopically showing papillary growth consisting of oncocytic cells with a typical mucin expression profile, although with few intraepithelial lumina containing mucin...
October 11, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29021231/deletion-of-bmp6-worsens-the-phenotype-of-hjv-deficient-mice-and-attenuates-hepcidin-levels-reached-after-lps-challenge
#20
Chloé Latour, Céline Besson-Fournier, Ophélie Gourbeyre, Delphine Meynard, Marie-Paule Roth, Hélène Coppin
Lack of either BMP6 or the BMP co-receptor hemojuvelin (HJV) in mice leads to a similar phenotype with hepcidin insufficiency, hepatic iron loading, and extrahepatic iron accumulation in males. This is consistent with the current views that HJV is a co-receptor for BMP6 in hepatocytes. To determine whether BMP6 and HJV may also signal to hepcidin independently of each other, we intercrossed Hjv(-/-) and Bmp6(-/-) mice and compared the phenotype of animals of the F2 progeny. Loss of Bmp6 further repressed Smad signaling and hepcidin expression in the liver of Hjv(-/-) mice of both genders, and led to iron accumulation in the pancreas and the heart of females...
October 11, 2017: Blood
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