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pancreatitis and metabolic disorders

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https://www.readbyqxmd.com/read/28177762/chronic-intermittent-hypoxia-disturbs-insulin-secretion-and-causes-pancreatic-injury-via-mapk-signaling-pathway
#1
Yeying Wang, Bing Hai, Xiaoqun Niu, Li Ai, Yu Cao, Ran Li, Yongxia Li
Obstructive sleep apnea (OSA) is a breath disorder during sleep with a most prominent character of chronic intermittent hypoxia (CIH), inducing the generation of reactive oxygen species (ROS) to damage multiple tissues and cause metabolism disorders. In this study, we established rat varying OSA model by graded concentration of CIH (12.5% O2, 10% O2, 7.5%O2 and 5% O2) for 12 weeks, and found that CIH stimulated insulin secretion, reduced the insulin/proinsulin ratio in the pancreatic tissue, and caused pancreatic tissue lesions and cells apoptosis in a dose-dependent manner...
November 28, 2016: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28159831/prion-like-protein-aggregates-and-type-2-diabetes
#2
Abhisek Mukherjee, Claudio Soto
Type 2 diabetes (T2D) is a highly prevalent metabolic disease characterized by chronic insulin resistance and β-cell dysfunction and loss, leading to impaired insulin release and hyperglycemia. Although the mechanism responsible for β-cell dysfunction and death is not completely understood, recent findings suggest that the accumulation of misfolded aggregates of the islet amyloid polypeptide (IAPP) in the islets of Langerhans may play an important role in pancreatic damage. Misfolding and aggregation of diverse proteins and their accumulation as amyloid in different organs is the hallmark feature in a group of chronic, degenerative diseases termed protein misfolding disorders (PMDs)...
February 3, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28127888/insulin-delivery-to-the-brain-using-intracranial-implantation-of-alginate-encapsulated-pancreatic-islets
#3
Konstantin Bloch, Alexey Vanichkin, Irit Gil-Ad, Pnina Vardi, Abraham Weizman
There is increasing evidence supporting a link between cognitive dysfunctions and impaired brain insulin signalling. Insulin therapy has previously been tested as an approach to ameliorate brain insulin resistance and deficiency in patients with various brain disorders. However, current strategies for insulin delivery to the brain may induce severe hypoglycaemia when injected peripherally or show poor uptake when delivered intranasally. Recently, we have shown that intracranial transplantation of naked pancreatic islets increased insulin content in the brain and attenuated cognitive dysfunctions without altering peripheral glucose homeostasis in rats with schizophrenia-like syndrome...
January 27, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28111236/prevalence-of-prediabetes-risk-in-offspring-born-to-mothers-with-hyperandrogenism
#4
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...
January 11, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28089906/adenosine-signaling-in-diabetes-mellitus-and-associated-cardiovascular-and-renal-complications
#5
REVIEW
Maria Peleli, Mattias Carlstrom
Diabetes mellitus is characterized by abnormal glucose and lipid metabolism, and subsequent hyperglycemia and dyslipidemia, which results from defects in pancreatic islet beta-cells insulin secretion and/or decreased insulin sensitivity in metabolically active organs (i.e. liver, skeletal muscle and adipose tissue). Accumulating evidence highlights a critical role for the adenosine system in the regulation of insulin and glucose homeostasis and the pathophysiology of type 2 diabetes (T2D). Adenosine is a key diverse extracellular signaling molecule that regulates several aspects of tissue function by activating four G-protein-coupled receptors (i...
January 12, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28069746/non-alcoholic-fatty-pancreas-disease
#6
REVIEW
Tamara Alempijevic, Sanja Dragasevic, Simon Zec, Dragan Popovic, Tomica Milosavljevic
Obesity is a growing problem worldwide and disorders associated with excess body fat including the metabolic syndrome, type 2 diabetes mellitus (T2DM), cardiovascular disease and malignant neoplasms are becoming a major cause of morbidity and mortality. Over the past decade, a vast amount of research has furthered our understanding of non-alcoholic fatty liver disease; however, only recently pancreatic fat infiltration is coming to the forefront of investigation. Termed non-alcoholic fatty pancreas disease (NAFPD), it is becoming evident that it has important associations with other diseases of obesity...
January 9, 2017: Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28057010/update-on-lysinuric-protein-intolerance-a-multi-faceted-disease-retrospective-cohort-analysis-from-birth-to-adulthood
#7
Wladimir Mauhin, Florence Habarou, Stéphanie Gobin, Aude Servais, Anaïs Brassier, Coraline Grisel, Célina Roda, Graziella Pinto, Despina Moshous, Fahd Ghalim, Pauline Krug, Nelly Deltour, Clément Pontoizeau, Sandrine Dubois, Murielle Assoun, Louise Galmiche, Jean-Paul Bonnefont, Chris Ottolenghi, Jacques de Blic, Jean-Baptiste Arnoux, Pascale de Lonlay
BACKGROUND: Lysinuric protein intolerance (LPI) is a rare metabolic disease resulting from recessive-inherited mutations in the SLC7A7 gene encoding the cationic amino-acids transporter subunit y(+)LAT1. The disease is characterised by protein-rich food intolerance with secondary urea cycle disorder, but symptoms are heterogeneous ranging from infiltrative lung disease, kidney failure to auto-immune complications. This retrospective study of all cases treated at Necker Hospital (Paris, France) since 1977 describes LPI in both children and adults in order to improve therapeutic management...
January 5, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28050357/evaluation-of-biochemical-markers-serum-amylase-and-serum-lipase-for-the-assessment-of-pancreatic-exocrine-function-in-diabetes-mellitus
#8
Mahesh Basavaraj Madole, Chandrashekhar M Iyer, Mamatha Thimmanna Madivalar, Satish Kishanrao Wadde, Deepak Sadashiv Howale
INTRODUCTION: Diabetes mellitus (DM), a metabolic disorder characterized by hyperglycaemia, associated with deficiency or resistance to insulin indicates endocrinal abnormality of the pancreas. Amylase and lipase are enzymes secreted by the exocrine portion of the pancreas. Endocrinal derangement observed in diabetes may interfere with the exocrine function of the pancreas. AIM: To estimate the levels of fasting blood sugar, serum lipase, serum amylase in patients of type 1 and type 2 DM...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28049396/oxidative-stress-and-antioxidant-potential-of-one-hundred-medicinal-plants
#9
Waseem Hassan, Hamsa Noreen, Shakila Rehman, Shehnaz Gul, Mohammad Amjad Kamal, Jean Paul Kamdem, Bakht Zaman, Joao B T da Rocha
Reactive species are produced in biological system because of redox reactions. The imbalance in pro-oxidant and antioxidant homeostasis leads to the production of toxic reactive oxygen and nitrogen species like hydrogen peroxide, organic peroxides, hydroxyl radicals, superoxide anion and nitric oxide. Inactivation of metabolic enzymes, oxidation of biomolecules and cellular damage are some of the prominent characteristics of reactive species. Similarly, oxidative stress has been associated with more than one hundred (100) pathologies such as atherosclerosis, diabetes, cardiovascular diseases, pancreatic and liver diseases, joint disorders, cardiac fibrosis, acute respiratory distress syndrome, neurological diseases (amyotrophic lateral sclerosis, Huntington's disorder, Parkinson's disease and Alzheimer's disease), ageing and cancer etc...
January 2, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28042834/phlorotannins-towards-new-pharmacological-interventions-for-diabetes-mellitus-type-2
#10
REVIEW
Graciliana Lopes, Paula B Andrade, Patrícia Valentão
Diabetes mellitus is a group of metabolic disorders characterized by hyperglycaemia, and predicted by the World Health Organization as the expected 7th leading cause of death in 2030. Diabetes mellitus type 2 (DMT2) comprises the majority of diabetic individuals around the world (90%-95%). Pathophysiologically, this disorder results from a deregulation of glucose homeostasis, worsened by overweight and by a sedentary lifestyle, culminating in life-threatening cardiovascular events. The currently available anti-diabetic drugs are not devoid of undesirable side effects, sometimes responsible for poor therapeutic compliance...
December 30, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27975343/need-for-better-diabetes-treatment-the-therapeutic-potential-of-nmda-receptor-antagonists
#11
A Welters, E Lammert, E Mayatepek, T Meissner
Diabetes mellitus is the most common metabolic disorder in children and adolescents. Optimal control of blood glucose concentration is essential to prevent acute and diabetic long-term complications. The options to treat diabetes have clearly improved over the last decades, however, to date neither type 1 diabetes nor type 2 diabetes mellitus can be cured. Therefore, diabetes research aims at developing β-cell protective agents that prevent or even reverse diabetes onset. N-methyl-D-aspartate receptors (NMDARs) are glutamate-gated ion channels that are widely expressed in the central nervous system (CNS) where they hold central roles in CNS function...
January 2017: Klinische Pädiatrie
https://www.readbyqxmd.com/read/27941194/-genetic-mutations-as-a-cause-of-acute-recurrent-pancreatitis-in-children-case-report-and-literature-review
#12
Tatiana Jamer, Barbara Iwańczak
Acute recurrent pancreatitis is not common in children. The epidemiology, etiology and clinical presentation of pediatric acute recurrent pancreatitis are not well understood. The etiology is diverse and multifactorial, with many cases being idiopathic. The most common etiology of acute recurrent pancreatitis in children are genetic factors, biliary duct disorders, anatomic anomalies of the pancreatobiliary system and metabolic diseases. Mutations are most commonly found in the cationic trypsynogen gene (PRSS1), the pancreatic secretory trypsin inhibitor gene (SPINK1) and the cystic fibrosis transmembrane conductance regulator gene (CFTR)...
2016: Developmental Period Medicine
https://www.readbyqxmd.com/read/27918953/cross-talk-between-innate-cytokines-and-the-pancreatic-polypeptide-family-in-acute-pancreatitis
#13
Sayali A Pendharkar, Ruma G Singh, Maxim S Petrov
BACKGROUND AND AIM: Low-grade inflammation persists in patients with acute pancreatitis (AP) after hospital discharge, and is linked to metabolic disorders. Neuropeptide Y (NPY) is well recognized as an important mediator of inflammation in these patients but the role of the other two structurally similar peptides, pancreatic polypeptide (PP) and peptide YY (PYY), in inflammation has been sparsely investigated. The aim was to investigate the association between PYY, PP, NPY and circulating levels of innate cytokines in patients after AP...
December 2, 2016: Cytokine
https://www.readbyqxmd.com/read/27915035/hyperinsulinaemic-hypoglycaemia-in-children-and-adults
#14
REVIEW
Pratik Shah, Sofia A Rahman, Huseyin Demirbilek, Maria Güemes, Khalid Hussain
Pancreatic β cells are functionally programmed to release insulin in response to changes in plasma glucose concentration. Insulin secretion is precisely regulated so that, under normal physiological conditions, fasting plasma glucose concentrations are kept within a narrow range of 3·5-5·5 mmol/L. In hyperinsulinaemic hypoglycaemia, insulin secretion becomes dysregulated (ie, uncoupled from glucose metabolism) so that insulin secretion persists in the presence of low plasma glucose concentrations. Hyperinsulinaemic hypoglycaemia is the most common cause of severe and persistent hypoglycaemia in neonates and children...
November 30, 2016: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/27914526/jiawei-erzhiwan-improves-menopausal-metabolic-syndrome-by-enhancing-insulin-secretion-in-pancreatic-%C3%AE-cells
#15
Xiao-Meng Wan, Mu Zhang, Pei Zhang, Zhi-Shen Xie, Feng-Guo Xu, Ping Zhou, Shi-Ping Ma, Xiao-Jun Xu
Menopausal metabolic syndrome (MMS) is a series of syndrome caused by ovarian function decline and hormone insufficiency, and is a high risk factor for cardiovascular diseases (CVD) and type II diabetes mellitus (T2DM). Erzhiwan (EZW), composed of Herba Ecliptae and Fructus Ligustri Lucidi, is a traditional Chinese herbal formula that has been used to treat menopausal syndrome for many years. We added Herba Epimedii, Radix Rehmanniae, and Fructus Corni into EZW, to prepare a new formula, termed Jiawei Erzhiwan (JE)...
November 2016: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/27906711/polycystic-ovary-syndrome-in-adolescent-girls
#16
Natalie Hecht Baldauff, Selma Feldman Witchel
PURPOSE OF REVIEW: Polycystic ovary syndrome (PCOS) is a common heterogeneous disorder that appears to have its origins during the peripubertal years. The diagnostic conundrum is that the typical clinical features, irregular menses and acne, occur during normal female puberty. Understanding the physiologic origins and molecular basis of the dysregulated hypothalamic-pituitary-gonadal axis in PCOS is fundamental to interrupting the distinctive vicious cycle of hyperandrogenism and chronic anovulation...
February 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/27905373/-enteral-distress-syndrome-in-surgery-definition-pathogenesis-diagnosis
#17
A P Vlasov, V A Trofimov, T I Grigor'eva, V A Shibitov, P A Vlasov
It was performed a comprehensive experimental and clinical study of functional and metabolic status of the intestine in acute peritonitis, pancreatic necrosis, acute intestinal obstruction. We obtained objective data of impaired barrier function based on levels of toxins in arterial and mesenteric venous blood. Association of organ and organismic homeostatic changes was revealed. It was proved an important role of membrane-destabilizing processes in intestinal epithelium as a cause of enteral insufficiency...
2016: Khirurgiia
https://www.readbyqxmd.com/read/27881904/long-noncoding-rnas-in-metabolic-syndrome-related-disorders
#18
REVIEW
Magdalena Losko, Jerzy Kotlinowski, Jolanta Jura
Ribonucleic acids (RNAs) are very complex and their all functions have yet to be fully clarified. Noncoding genes (noncoding RNA, sequences, and pseudogenes) comprise 67% of all genes and they are represented by housekeeping noncoding RNAs (transfer RNA (tRNA), ribosomal RNA (rRNA), small nuclear RNA (snRNA), and small nucleolar RNA (snoRNA)) that are engaged in basic cellular processes and by regulatory noncoding RNA (short and long noncoding RNA (ncRNA)) that are important for gene expression/transcript stability...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27867203/epac2a-null-mice-exhibit-obesity-prone-nature-more-susceptible-to-leptin-resistance
#19
M Hwang, Y Go, J-H Park, S-K Shin, S E Song, B-C Oh, S-S Im, I Hwang, Y H Jeon, I-K Lee, S Seino, D-K Song
BACKGROUND: The exchange protein directly activated by cAMP (Epac), which is primarily involved in cAMP signaling, has been known to be essential for controlling body energy metabolism. Epac has two isoforms: Epac1 and Epac2. The function of Epac1 on obesity was unveiled using Epac1 knockout (KO) mice. However, the role of Epac2 in obesity remains unclear. METHODS: To evaluate the role of Epac2 in obesity, we used Epac2a KO mice, which is dominantly expressed in neurons and endocrine tissues...
December 13, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27865874/bromodomain-containing-protein-2-induces-insulin-resistance-via-the-mtor-akt-signaling-pathway-and-an-inflammatory-response-in-adipose-tissue
#20
Ruixin Sun, Yi Wu, Weihua Hou, Zujun Sun, Yuxiong Wang, Huanhuan Wei, Wei Mo, Min Yu
Insulin resistance is a major metabolic abnormality in a large majority of patients with type II diabetes. Bromodomain-containing protein 2 (Brd2), a transcriptional co-activator/co-repressor with switch mating type/sucrose non-fermenting (SWI/SNF)-like functions that regulates chromatin, suppresses adipocyte differentiation and regulates pancreatic β-cell biology. However, the effects of Brd2 on insulin resistance remain unknown. Here, overexpression of Brd2 in white adipose tissue of wild-type (WT) mice led to insulin resistance...
January 2017: Cellular Signalling
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