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Pancreatic function tests

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https://www.readbyqxmd.com/read/29352519/nafamostat-mesilate-attenuates-inflammation-and-apoptosis-and-promotes-locomotor-recovery-after-spinal-cord-injury
#1
Hui-Quan Duan, Qiu-Li Wu, Xue Yao, Bao-You Fan, Hong-Yu Shi, Chen-Xi Zhao, Yan Zhang, Bo Li, Chao Sun, Xiao-Hong Kong, Xin-Fu Zhou, Shi-Qing Feng
AIM: Spinal cord injury (SCI) leads to severe neural damage for which there is currently no effective treatment. Exploration of the neuroprotective effect among clinically approved drugs will speed up clinical translation of SCI. Nafamostat mesilate (NM) as a synthetic serine protease inhibitor has been used clinically in pancreatitis treatments. However, its effectiveness in SCI is unknown. The aim of this study was to confirm the efficacy of NM in ameliorating SCI. METHODS: Intraperitoneal administration of NM was performed on a contusion SCI model in Wistar rat...
January 19, 2018: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/29351483/prenatal-exposure-to-diesel-exhaust-pm2-5-causes-offspring-%C3%AE-cell-dysfunction-in-adulthood
#2
Minjie Chen, Shuai Liang, Xiaobo Qin, Li Zhang, Lianglin Qiu, Sufang Chen, Ziying Hu, Yanyi Xu, Wanjun Wang, Yuhao Zhang, Qi Cao, Zhekang Ying
BACKGROUND: Environmental stressors that encounter in early-life and cause abnormal fetal and/or neonatal development may increase susceptibility to non-communicable diseases such as diabetes. Maternal exposure to ambient fine particulate matter (PM2.5) is associated with various fetal abnormalities, suggesting that it may program offspring's susceptibility to diabetes. In the present study, we therefore examined whether maternal exposure to diesel exhaust PM2.5 (DEP), one of the major sources of ambient PM2...
December 26, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29340827/single-incision-laparoscopic-hepaticojejunostomy-for-children-with-perforated-choledochal-cysts
#3
Mei Diao, Long Li, Wei Cheng
BACKGROUND: Conventionally, perforated choledochal cyst (CDC) is a contraindication of laparoscopic treatment. The current study is to evaluate efficacy of single-incision laparoscopic hepaticojejunostomy (SILH) in children with perforated CDCs. METHODS: One hundred and thirty-three children with perforated CDCs who underwent SILHs in our hospital between August 2011 and August 2017 were reviewed. RESULTS: Fifteen (11.3%) patients were converted to open procedures due to severe adhesions and oozing...
January 16, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29338388/novel-fusion-protein-targeting-mitochondrial-dna-improves-pancreatic-islet-functional-potency-and-islet-transplantation-outcomes
#4
Juan S Danobeitia, Peter J Chlebeck, Inna Shokolenko, Xiaobo Ma, Glenn Wilson, Luis A Fernandez
Long-term graft survival is an ongoing challenge in the field of islet transplantation. With the growing demand for transplantable organs, therapies to improve organ quality and reduce the incidence of graft dysfunction are of paramount importance. We evaluated the protective role of a recombinant DNA repair protein targeted to mitochondria (Exscien I-III), as a therapeutic agent using a rodent model of pancreatic islet transplantation. We first investigated the effect of therapy on isolated rat islets cultured with pro-inflammatory cytokines (interleukin-1 β, interferon γ, and tumor necrosis factor α) for 48 h and documented a significant reduction in apoptosis by flow cytometry, improved viability by immunofluorescence, and conserved functional potency in vitro and in vivo in Exscien I-III-treated islets...
November 2017: Cell Transplantation
https://www.readbyqxmd.com/read/29330353/afadin-and-rhoa-control-pancreatic-endocrine-mass-via-lumen-morphogenesis
#5
D Berfin Azizoglu, Caitlin Braitsch, Denise K Marciano, Ondine Cleaver
Proper lumen morphogenesis during pancreas development is critical to endocrine and exocrine cell fate. Recent studies showed that a central network of lumens (termed core), but not the surrounding terminal branches (termed periphery), produces most islet endocrine cells. To date, it remains unclear how pancreatic lumens form and remodel and which aspects of lumen morphogenesis influence cell fate. Importantly, models testing the function of the central lumen network as an endocrine niche are lacking. Here, we identify mechanisms underlying lumen formation and remodeling and show that central lumen network morphogenesis impacts pancreatic endocrine mass...
January 12, 2018: Genes & Development
https://www.readbyqxmd.com/read/29330039/age-as-a-prognostic-indicator-for-adjuvant-therapy-in-patients-who-underwent-pancreatic-resections-for-cancer
#6
Alicia Eubanks, Julie Pepe, Paula Veldhuis, Sebastian G de la Fuente
PURPOSE: In pancreatic cancer, the greatest increase in survival is attained by surgical resection followed by adjuvant chemotherapy. Although surgical complications and functional status are recognized as independent factors for halting adjuvant therapy in patients that undergo pancreatic resections, other elements may play a role in deciding which patients get treated postoperatively. Here we determined demographic and clinical characteristics of patients receiving adjuvant chemotherapy, with the primary intent to investigate if age alone affects rates of adjuvant therapy...
January 9, 2018: Journal of Geriatric Oncology
https://www.readbyqxmd.com/read/29322923/a-polynomial-based-model-for-cell-fate-prediction-in-human-diseases
#7
Lichun Ma, Jie Zheng
BACKGROUND: Cell fate regulation directly affects tissue homeostasis and human health. Research on cell fate decision sheds light on key regulators, facilitates understanding the mechanisms, and suggests novel strategies to treat human diseases that are related to abnormal cell development. RESULTS: In this study, we proposed a polynomial based model to predict cell fate. This model was derived from Taylor series. As a case study, gene expression data of pancreatic cells were adopted to test and verify the model...
December 21, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/29319794/an-observational-analysis-of-insulinoma-from-1-single-institution
#8
Zhixuan Zeng, Shuhong Hu, Shiying Shao
Background: Insulinoma is the commonest functioning pancreatic neuroendocrine tumor causing hyperinsulinemic hypoglycemia. This study is aimed to evaluate the clinical features, preoperative laboratory and imaging diagnosis, and pathologic findings of insulinoma. Methods: Data of the patients from 2001 to 2016 diagnosed as insulinoma in Tongji Hospital, China were retrospectively extracted and analyzed. Results: A total of 40 patients were diagnosed as insulinoma with a male/female ratio of 0...
January 8, 2018: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29319618/effect-of-conversion-to-ctla4ig-treatment-on-tacrolimus-induced-diabetic-rats
#9
Long Jin, Sun Woo Lim, Jian Jin, Kang Luo, Eun Jeong Ko, Byung Ha Chung, Hong Li Lin, Chul Woo Yang
BACKGROUND: The effect of conversion to cytotoxic T-lymphocyte-associated protein 4 immunoglobulin (CTLA4Ig) treatment on tacrolimus (TAC)-induced renal dysfunction is well known, but its effect on TAC-induced diabetes mellitus (DM) is still undetermined. In the present study, we tested the diabetogenicity of CTLA4Ig and evaluated the effect of conversion to CTLA4Ig treatment on TAC-induced diabetic rats. METHODS: We tested diabetogenicity of CTLA4Ig by escalating doses (0...
January 10, 2018: Transplantation
https://www.readbyqxmd.com/read/29314572/high-fat-diet-induced-tcf7l2-promoter-methylation-impairs-%C3%AE-cell-function-in-mouse-pancreatic-islets
#10
Yun Hu, Ping Shi, Ke He, Yun-Qing Zhu, Fan Yang, Min Yang, Bang-Shun He, Xiao-Ming Mao
BACKGROUND: The TCF7L2 (transcription factor 7 like 2) gene is strongly associated with type 2 diabetes (T2D) risk. However, many people without the TCF7L2 at-risk allele develop T2D. The aim of this study was to investigate altered Tcf7l2 DNA methylation and gene expression caused by high-fat diets (HFDs). METHODS: C57BL/6 mice were fed either a HFD or normal diet for 8 weeks and intraperitoneal glucose tolerance tests were performed. Pancreatic islets were sorted for bisulfite sequencing PCR to determine DNA methylation status...
January 4, 2018: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/29309705/common-genetic-variants-associated-with-pancreatic-adenocarcinoma-may-also-modify-risk-of-pancreatic-neuroendocrine-neoplasms
#11
Ofure Obazee, Gabriele Capurso, Francesca Tavano, Livia Archibugi, Antonio De Bonis, William Greenhalf, Tim Key, Claudio Pasquali, Anna Caterina Milanetto, Thilo Hackert, Paola Fogar, Valbona Liço, Christos Dervenis, Rita T Lawlor, Luca Landoni, Maria Gazouli, Carlo Federico Zambon, Niccola Funel, Oliver Strobel, Krzysztof Jamroziak, Cinzia Cantù, Ewa Malecka-Panas, Stefano Landi, John P Neoptolemos, Daniela Basso, Renata Talar-Wojnarowska, Maria Rinzivillo, Angelo Andriulli, Federico Canzian, Daniele Campa
Pancreatic neuroendocrine neoplasms (pNEN) account for less than 5% of all pancreatic neoplasms and genetic association studies on susceptibility to the disease are limited. We sought to identify possible overlap of genetic susceptibility loci between pancreatic ductal adenocarcinoma (PDAC) and pNEN; therefore, PDAC susceptibility variants (n=23) from Caucasian genome-wide association studies (GWAS) were genotyped in 369 pNEN cases and 3,277 controls from the PANcreatic Disease ReseArch (PANDoRA) consortium to evaluate the odds associated with pNEN risk, disease onset and tumor characteristics...
December 22, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29299757/benign-tumors-of-the-pancreas-radical-surgery-versus-parenchyma-sparing-local-resection-the-challenge-facing-surgeons
#12
EDITORIAL
Hans G Beger
Pancreaticoduodenectomy and left-sided pancreatectomy are the surgical treatment standards for tumors of the pancreas. Surgeons, who are requested to treat patients with benign tumors, using standard oncological resections, face the challenge of sacrificing pancreatic and extra-pancreatic tissue. Tumor enucleation, pancreatic middle segment resection and local, duodenum-preserving pancreatic head resections are surgical procedures increasingly used as alternative treatment modalities compared to classical pancreatic resections...
January 3, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/29290028/carboxybetaine-modified-succinylated-chitosan-based-beads-encourage-pancreatic-%C3%AE-cells-min-6-to-form-islet-like-spheroids-under-in-vitro-conditions
#13
Valeria Perugini, Mark Best, Sandeep Kumar, Anna L Guildford, Adrian J Bone, Wendy M Macfarlane, Matteo Santin, Gary J Phillips
In vitro, pancreatic β-cells tend to reduce their ability to aggregate into islets and lose insulin-producing ability, likely due to insufficient cell-cell and cell-matrix interactions that are essential for β-cell retention, viability and functionality. In response to these needs, surfaces of succinylated chitosan-based beads (NSC) were modified with zwitterionic carboxy-betaine (CB) moieties, a compatible osmolyte known to regulate cellular hydration state, and used to promote the formation of β-cell spheroids using a conventional 2D cell culture technique...
December 30, 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/29285688/pancreatoblastoma-an-unusual-diagnosis-in-an-adult-patient
#14
Gonçalo Nunes, Hélder Coelho, Marta Patita, Rita Barosa, Pedro Pinto Marques, Lídia Roque Ramos, Maria José Brito, Aurora Tomaz, Jorge Fonseca
The authors describe a 31-year-old man admitted due to progressive weight loss, diarrhea and massive hepatomegaly. Laboratory data showed anemia (haemoglobin 11.7 g/dl), abnormal liver tests (total bilirubin 1.4 g/dl, aspartate aminotransferase 70 U/l, alanine aminotransferase 37 U/l and alkaline phosphatase 520 U/l). Abdominal ultrasound (US) displayed a large heterogeneous liver with a segment IV 25 mm nodule. Magnetic resonance revealed a 4 cm pancreatic tail mass and several liver nodules consistent with metastasis...
December 28, 2017: Clinical Journal of Gastroenterology
https://www.readbyqxmd.com/read/29279204/ivacaftor-restores-cftr-dependent-sweat-gland-fluid-secretion-in-cystic-fibrosis-subjects-with-s945l-alleles
#15
Jeeyeon Kim, Zoe Davies, Colleen Dunn, Jeffrey J Wine, Carlos Milla
BACKGROUND: To determine in vivo effects of CFTR modulators on mutation S945L. METHODS: We measured effects of CFTR modulators on CFTR-dependent sweating ('C-sweat') in two pancreatic sufficient cystic fibrosis (CF) subjects. S1 (S945L/G542X) took ivacaftor and S2 (S945L/F508del) took ivacaftor+tezacaftor. Sweating was stimulated pharmacologically to produce sequentially both CFTR-independent (methacholine stimulated) M-sweat and C-sweat; and the ratio of these was compared...
December 23, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/29273469/circulating-triacylglycerols-but-not-pancreatic-fat-associate-with-insulin-secretion-in-healthy-humans
#16
Bettina Nowotny, Sabine Kahl, Birgit Klüppelholz, Barbara Hoffmann, Guido Giani, Roshan Livingstone, Peter J Nowotny, Valerie Stamm, Christian Herder, Andrea Tura, Giovanni Pacini, Jong-Hee Hwang, Michael Roden
BACKGROUND: Loss of adequate insulin secretion for the prevailing insulin resistance is critical for the development of type 2 diabetes and has been suggested to result from circulating lipids (triacylglycerols [TG] or free fatty acids) and/or adipocytokines or from ectopic lipid storage in the pancreas. This study aimed to address whether circulating lipids, adipocytokines or pancreatic fat primarily associate with lower insulin secretion. SUBJECTS/METHODS: Nondiabetic persons (n=73), recruited from the general population, underwent clinical examinations, fasting blood drawing to measure TG and adipocytokines and oral glucose tolerance testing (OGTT) to assess basal and dynamic insulin secretion and sensitivity indices...
December 19, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29260593/determinants-of-glucose-metabolism-and-the-role-of-npy-in-the-progression-of-insulin-resistance-in-chronic-migraine
#17
Zeynep Oşar Siva, Derya Uluduz, Fatma Ela Keskin, Feyza Erenler, Huriye Balcı, Uğur Uygunoğlu, Sabahattin Saip, Baki Göksan, Aksel Siva
Background Chronic migraine has a well-documented association with increased insulin resistance and metabolic syndrome. The hypothalamus may play a role in the progression of insulin resistance in chronic migraine through the regulation of orexigenic peptides such as neuropeptide Y. Insulin resistance may lead to increased risk of future type 2 diabetes mellitus in patients with chronic migraine, which is more likely to occur if other pathogenetic defects of type 2 diabetes mellitus, such as impaired pancreatic β-cell functions and defects in intestinal glucagon-like peptide-1 secretion after meals...
January 1, 2017: Cephalalgia: An International Journal of Headache
https://www.readbyqxmd.com/read/29251576/pretransplant-hba1c-and-glucose-metabolism-parameters-in-predicting-posttransplant-diabetes-mellitus-and-their-course-in-the-first-6-months-after-living-donor-renal-transplant
#18
Namrata Rao, Manish Rathi, Ashish Sharma, Raja Ramachandran, Vivek Kumar, Harbir Singh Kohli, Krishan Lal Gupta, Vinay Sakhuja
OBJECTIVES: Posttransplant diabetes mellitus is a common and serious metabolic complication after renal transplant. Patients with uremia are known to have abnormal glucose metabolism characterized by insulin resistance and defects in insulin secretion, which are ameliorated to some extent with renal replacement therapy and more so with renal transplant. However, the diabetogenicity of calcineurin inhibitors compounds this state of dysglycemia and promotes the development of diabetes in some patients...
December 18, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/29248719/usp9x-promotes-survival-in-human-pancreatic-cancer-and-its-inhibition-suppresses-pancreatic-ductal-adenocarcinoma-in-vivo-tumor-growth
#19
Anupama Pal, Michele Dziubinski, Marina Pasca Di Magliano, Diane M Simeone, Scott Owens, Dafydd Thomas, Luke Peterson, Harish Potu, Moshe Talpaz, Nicholas J Donato
Usp9x has emerged as a potential therapeutic target in some hematologic malignancies and a broad range of solid tumors including brain, breast, and prostate. To examine Usp9x tumorigenicity and consequence of Usp9x inhibition in human pancreatic tumor models, we carried out gain- and loss-of-function studies using established human pancreatic tumor cell lines (PANC1 and MIAPACA2) and four spontaneously immortalized human pancreatic patient-derived tumor (PDX) cell lines. The effect of Usp9x activity inhibition by small molecule deubiquitinase inhibitor G9 was assessed in 2D and 3D culture, and its efficacy was tested in human tumor xenografts...
December 14, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/29245916/laminarin-counteracts-diet-induced-obesity-associated-with-glucagon-like-peptide-1-secretion
#20
Liusong Yang, Lina Wang, Canjun Zhu, Junguo Wu, Yexian Yuan, Lulu Yu, Yaqiong Xu, Jingren Xu, Tao Wang, Zhengrui Liao, Songbo Wang, Xiaotong Zhu, Ping Gao, Yongliang Zhang, Xiuqi Wang, Qingyan Jiang, Gang Shu
Laminarin, a type of β-glucan isolated from brown seaweeds, exhibits verity of physiological activities, which include immunology modulation and antitumor function. To investigate the effect of laminarin on energy homeostasis, mice were orally administrated with laminarin to test food intake, fat deposition, and glucose homeostasis. Chronically, laminarin treatment significantly decreases high-fat-diet-induced body weight gain and fat deposition and reduces blood glucose level and glucose tolerance. Acutely, laminarin enhances serum glucagon-like peptide-1 (GLP-1) content and the mRNA expression level of proglucagon and prohormone convertase 1 in ileum...
November 21, 2017: Oncotarget
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