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pancreatitis in pregnancy

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https://www.readbyqxmd.com/read/28314963/mir-124a-expression-contributes-to-the-monophasic-pattern-of-insulin-secretion-in-islets-from-pregnant-rats-submitted-to-a-low-protein-diet
#1
Kariny Cassia de Siqueira, Faena Moura de Lima, Fernanda Souza Lima, Marina Satie Taki, Clarissa Felfili da Cunha, Sílvia Regina de Lima Reis, Rafael Ludemann Camargo, Thiago Martins Batista, Emerielle Cristine Vanzela, Tarlliza Romanna Nardelli, Everardo Magalhães Carneiro, Silvana Bordin, Letícia Martins Ignácio-Souza, Márcia Queiroz Latorraca
PURPOSE: To evaluate the role of miR-124a in the regulation of genes involved in insulin exocytosis and its effects on the kinetics of insulin secretion in pancreatic islets from pregnant rats submitted to a low-protein diet. METHODS: Adult control non-pregnant (CNP) and control pregnant (CP) rats were fed a normal protein diet (17%), whereas low-protein non-pregnant (LPNP) and low-protein pregnant (LPP) rats were fed a low-protein diet (6%) from days 1 to 15 of pregnancy...
March 17, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28286049/insulin-signaling-regulates-the-foxm1-plk1-cenp-a-pathway-to-promote-adaptive-pancreatic-%C3%AE-%C3%A2-cell-proliferation
#2
Jun Shirakawa, Megan Fernandez, Tomozumi Takatani, Abdelfattah El Ouaamari, Prapaporn Jungtrakoon, Erin R Okawa, Wei Zhang, Peng Yi, Alessandro Doria, Rohit N Kulkarni
Investigation of cell-cycle kinetics in mammalian pancreatic β cells has mostly focused on transition from the quiescent (G0) to G1 phase. Here, we report that centromere protein A (CENP-A), which is required for chromosome segregation during the M-phase, is necessary for adaptive β cell proliferation. Receptor-mediated insulin signaling promotes DNA-binding activity of FoxM1 to regulate expression of CENP-A and polo-like kinase-1 (PLK1) by modulating cyclin-dependent kinase-1/2. CENP-A deposition at the centromere is augmented by PLK1 to promote mitosis, while knocking down CENP-A limits β cell proliferation and survival...
February 26, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28274157/hnf1b-tspan8-and-notch2-gene-polymorphisms-in-women-with-gestational-diabetes
#3
Maciej Tarnowski, Damian Malinowski, Krzysztof Safranow, Violetta Dziedziejko, Andrzej Pawlik
PURPOSE: To investigate genes involved in pancreatic beta cell function, insulin production and glucose metabolism that may predispose to gestational diabetes mellitus (GDM). METHODS: The study group consisted of 204 women with GDM and 207 women with normal glucose tolerance (NGT). The following polymorphisms were genotyped for each patient: HNF1B rs4430796, TSPAN8 rs7961581 and NOTCH2 rs10923931. A p value of <.05 was considered to indicate a statistically significant result...
March 8, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28273369/is-estrogen-exposure-a-protective-factor-for-pancreatic-neuroendocrine-tumors-in-female-multiple-endocrine-neoplasia-syndrome-type-1-patients
#4
Wei Qiu, Ioannis Christakis, Ashley A Stewart, Danica M Vodopivec, Angelica Silva-Figueroa, Huiqin Chen, Terri L Woodard, Daniel M Halperin, Jeffrey E Lee, James C Yao, Nancy D Perrier
OBJECTIVE: Pancreatic neuroendocrine tumors (PNETs) are the most common cause of death in multiple endocrine neoplasia type 1 (MEN1) patients. Women have been shown to have improved survival, which may suggest a possible protective effect of female sex hormones. The aim of this study was to evaluate the relationship between estrogen exposure and PNET tumorigenesis, tumor growth, and survival in female MEN1 patients with these tumors. DESIGN: We performed a retrospective chart review of the existing MEN1 database in our institution...
March 8, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28268202/adverse-effects-of-parental-zinc-deficiency-on-metal-homeostasis-and-embryonic-development-in-a-zebrafish-model
#5
Laura M Beaver, Yasmeen M Nkrumah-Elie, Lisa Truong, Carrie L Barton, Andrea L Knecht, Greg D Gonnerman, Carmen P Wong, Robert L Tanguay, Emily Ho
The high prevalence of zinc deficiency is a global public health concern, and suboptimal maternal zinc consumption has been associated with adverse effects ranging from impaired glucose tolerance to low birthweights. The mechanisms that contribute to altered development and poor health in zinc deficient offspring are not completely understood. To address this gap, we utilized the Danio rerio model and investigated the impact of dietary zinc deficiency on adults and their developing progeny. Zinc deficient adult fish were significantly smaller in size, and had decreases in learning and fitness...
February 20, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28261314/maternal-high-fat-diet-intensifies-the-metabolic-response-to-stress-in-male-rat-offspring
#6
Roxana Karbaschi, Homeira Zardooz, Fariba Khodagholi, Leila Dargahi, Mina Salimi, FatemehSadat Rashidi
BACKGROUND: The mother's consumption of high-fat food can affect glucose metabolism and the hypothalamic-pituitary-adrenal axis responsiveness in the offspring and potentially affect the metabolic responses to stress as well. This study examines the effect of maternal high-fat diet on the expression of pancreatic glucose transporter 2 and the secretion of insulin in response to stress in offspring. METHODS: Female rats were randomly divided into normal and high-fat diet groups and were fed in accordance with their given diets from pre-pregnancy to the end of lactation...
2017: Nutrition & Metabolism
https://www.readbyqxmd.com/read/28194805/fetal-adaptations-in-insulin-secretion-result-from-high-catecholamines-during-placental-insufficiency
#7
Sean W Limesand, Paul J Rozance
Placental insufficiency and intrauterine growth restriction (IUGR) of the fetus affects approximately 8% of all pregnancies and is associated with short- and long-term disturbances in metabolism. In pregnant sheep, experimental models with a small, defective placenta that restricts delivery of nutrients and oxygen to the fetus result in IUGR. Low blood oxygen concentrations increase fetal plasma catecholamine concentrations, which lower fetal insulin concentrations. All of these observations in sheep models with placental insufficiency are consistent with cases of human IUGR...
February 14, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28176472/suspected-atypical-haemolytic-uraemic-syndrome-in-two-post-partum-patients-with-foetal-death-in-utero-responding-to-eculizumab
#8
REVIEW
Justin Chua, Kathy Paizis, Simon Z He, Peter Mount
BACKGROUND: Atypical haemolytic uraemic syndrome (aHUS) is a rare condition with the triad of microangiopathic haemolytic anaemia, thrombocytopenia and acute kidney injury. Other conditions that present in a similar manner peri-partum include thrombotic thrombocytopaenic purpura, and pregnancy associated conditions including HELLP syndrome (haemolysis, elevated liver enzymes and low platelets), severe pre-eclampsia and less commonly acute fatty liver of pregnancy. CASE REPORTS: We describe two cases of suspected aHUS, who presented post-partum with foetal death-in-utero at 33 and 37 weeks respectively...
February 2017: Nephrology
https://www.readbyqxmd.com/read/28162192/-the-454th-case-a-29-week-pregnant-woman-with-abdominal-pain-hyperlipemia-and-multiorgan-dysfunction
#9
D Wu, J Xu, J M Peng, L K Ma, S Chen, X G Li, T P Zhang, J M Qian
A 32 year-old woman in the third trimester of pregnancy was admitted for severe acute pancreatitis due to hypertriglyceridemia. During hospitalization she developed multiorgan dysfunction, infected pancreatic necrosis, abdominal compartment syndrome and intrauterine fetal death. She was successfully treated by multidisciplinary team including department of emergency medicine, ICU, gastroenterology, obstetrics, endocrinology, ultrasonography, radiology, infectious disease, nutrition and surgery.
February 1, 2017: Zhonghua Nei Ke za Zhi [Chinese Journal of Internal Medicine]
https://www.readbyqxmd.com/read/28160250/thiopurines-and-methotrexate-use-in-ibd-patients-in-a-biologic-era
#10
REVIEW
Gerassimos J Mantzaris
Although we have been living in the era of biologic therapy for several decades, the use of immunomodulators (primarily thiopurines [azathioprine and mercaptopurine] and less so methotrexate) still remains an important component of the inflammatory bowel disease (IBD) pharmaceutical arsenal. Thiopurines as monotherapy exert corticosteroid-sparing effects and can maintain long-term remission in a considerable proportion of patients who have frequent relapses and are or have become mesalazine and/or corticosteroid intolerant or refractory...
March 2017: Current Treatment Options in Gastroenterology
https://www.readbyqxmd.com/read/28119941/metastatic-pancreatic-adenocarcinoma-during-pregnancy
#11
Jessica Davis, Showkat Bashir, Helmae Wubneh, Marie L Borum
We present a rare case of metastatic pancreatic adenocarcinoma diagnosed antepartum. A high index of suspicion must be maintained to diagnose pancreatic cancer during pregnancy. We recommend a thorough history and physical and aggressive pursuit of sensitive imaging in patients with persistent symptoms. If pancreatic adenocarcinoma is diagnosed, a multidisciplinary approach that focuses on patient goals should be undertaken. The effect of pregnancy on tumor growth rates is unknown.
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28111236/prevalence-of-prediabetes-risk-in-offspring-born-to-mothers-with-hyperandrogenism
#12
Shen Tian, Xian-Hua Lin, Yi-Meng Xiong, Miao-E Liu, Tian-Tian Yu, Min Lv, Wei Zhao, Gu-Feng Xu, Guo-Lian Ding, Chen-Ming Xu, Min Jin, Chun Feng, Yan-Ting Wu, Ya-Jing Tan, Qian Gao, Jian Zhang, Cheng Li, Jun Ren, Lu-Yang Jin, Bin Chen, Hong Zhu, Xue-Ying Zhang, Song-Chang Chen, Xin-Mei Liu, Ye Liu, Jun-Yu Zhang, Li Wang, Ping Zhang, Xiao-Jun Chen, Li Jin, Xi Chen, Yi-Cong Meng, Dan-Dan Wu, Hui Lin, Qian Yang, Cheng-Liang Zhou, Xin-Zhu Li, Yi-Yu Wang, Yu-Qian Xiang, Zhi-Wei Liu, Ling Gao, Lu-Ting Chen, Hong-Jie Pan, Rong Li, Fang-Hong Zhang, Lan-Feng Xing, Yi-Min Zhu, Christian Klausen, Peter C K Leung, Ju-Xue Li, Fei Sun, Jian-Zhong Sheng, He-Feng Huang
BACKGROUND: Excessive androgen exposure during pregnancy has been suggested to induce diabetic phenotypes in offspring in animal models. The aim of this study was to investigate whether pregestational maternal hyperandrogenism in human influenced the glucose metabolism in offspring via epigenetic memory from mother's oocyte to child's somatic cells. METHODS: Of 1782 reproductive-aged women detected pregestational serum androgen, 1406 were pregnant between 2005 and 2010...
February 2017: EBioMedicine
https://www.readbyqxmd.com/read/28100476/chronic-anemic-hypoxemia-attenuates-glucose-stimulated-insulin-secretion-in-fetal-sheep
#13
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/28099206/is-a-%C3%AE-cell-a-%C3%AE-cell
#14
Chaoxing Yang, Feorillo Galivo, Craig Dorrell
PURPOSE OF REVIEW: This report examines recent publications identifying phenotypic and functional heterogeneity among pancreatic β cells and investigating their potential roles in normal and abnormal islet function. The development of new methods and tools for the study of individual islet cells has produced a surge of interest in this topic. RECENT FINDINGS: Studies of β cell maturation and pregnancy-induced proliferation have identified changes in serotonin and transcription factors SIX2/3 expression as markers of temporal heterogeneity...
April 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
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
#15
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/28049534/case-report-maternal-mosaicism-resulting-in-inheritance-of-a-novel-gata6-mutation-causing-pancreatic-agenesis-and-neonatal-diabetes-mellitus
#16
Daphne Yau, Elisa De Franco, Sarah E Flanagan, Sian Ellard, Miriam Blumenkrantz, John J Mitchell
BACKGROUND: Haploinsufficiency of the GATA6 transcription factor gene was recently found to be the most common cause of pancreatic agenesis, a rare cause of neonatal diabetes mellitus. Although most cases are de novo, we describe three siblings with inherited GATA6 haploinsufficiency and the rare finding of parental mosaicism. CASE PRESENTATION: The proband was born at term with severe intrauterine growth restriction, the first child of non-consanguineous parents...
January 3, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28009296/human-beta-cells-produce-and-release-serotonin-to-inhibit-glucagon-secretion-from-alpha-cells
#17
Joana Almaça, Judith Molina, Danusa Menegaz, Alexey N Pronin, Alejandro Tamayo, Vladlen Slepak, Per-Olof Berggren, Alejandro Caicedo
In the pancreatic islet, serotonin is an autocrine signal increasing beta cell mass during metabolic challenges such as those associated with pregnancy or high-fat diet. It is still unclear whether serotonin is relevant for regular islet physiology and hormone secretion. Here, we show that human beta cells produce and secrete serotonin when stimulated with increases in glucose concentration. Serotonin secretion from beta cells decreases cyclic AMP (cAMP) levels in neighboring alpha cells via 5-HT1F receptors and inhibits glucagon secretion...
December 20, 2016: Cell Reports
https://www.readbyqxmd.com/read/27965206/prior-lactation-reduces-future-diabetic-risk-through-sustained-post-weaning-effects-on-insulin-sensitivity
#18
Harpreet Bajaj, Chang Ye, Anthony J Hanley, Phil W Connelly, Mathew Sermer, Bernard Zinman, Ravi Retnakaran
Breastfeeding ≥12 months is recommended for optimal infant nutrition but may hold maternal benefits, as well. Indeed, lactation has been associated with lower long-term risk of diabetes in the mother but the mechanism by which it imparts sustained post-weaning effects on glucose tolerance remains unclear. In this context, we postulated that lactation potentially could induce post-weaning beneficial effects on glucose tolerance by modifying the natural history of insulin sensitivity and/or pancreatic beta-cell function over time...
December 13, 2016: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27959892/ffa2-contribution-to-gestational-glucose-tolerance-is-not-disrupted-by-antibiotics
#19
Miles Fuller, Xiaoran Li, Robert Fisch, Moneb Bughara, Barton Wicksteed, Petia Kovatcheva-Datchary, Brian T Layden
During the insulin resistant phase of pregnancy, the mRNA expression of free fatty acid 2 receptor (Ffar2) is upregulated and as we recently reported, this receptor contributes to insulin secretion and pancreatic beta cell mass expansion in order to maintain normal glucose homeostasis during pregnancy. As impaired gestational glucose levels can affect metabolic health of offspring, we aimed to explore the role of maternal Ffar2 expression during pregnancy on the metabolic health of offspring and also the effects of antibiotics, which have been shown to disrupt gut microbiota fermentative activity (the source of the FFA2 ligands) on gestational glucose homeostasis...
2016: PloS One
https://www.readbyqxmd.com/read/27922139/are-low-sun-exposure-and-or-vitamin-d-risk-factors-for-type-1-diabetes
#20
K M Miller, P H Hart, N H de Klerk, E A Davis, R M Lucas
The global variation in type 1 diabetes (T1D) incidence rates is one of the most significant observed for any non-communicable disease. Geographical patterns in incidence suggest that low sun exposure may contribute to the wide disparity, with incidence rates generally increasing with distance from the Equator. T1D development is associated with hyperactivity of the adaptive immune system leading to autoimmune destruction of insulin-secreting pancreatic β cells. Both exposure to ultraviolet radiation (UVR) and vitamin D, with their known immunosuppressive effects, have the potential to delay or inhibit the disease...
December 6, 2016: Photochemical & Photobiological Sciences
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