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https://www.readbyqxmd.com/read/28632820/the-nexus-of-stem-cell-derived-beta-cells-and-genome-engineering
#1
Sara D Sackett, Aida Rodriguez, Jon S Odorico
Diabetes, type 1 and type 2 (T1D and T2D), are diseases of epidemic proportions, which are complicated and defined by genetics, epigenetics, environment, and lifestyle choices. Current therapies consist of whole pancreas or islet transplantation. However, these approaches require life-time immunosuppression, and are compounded by the paucity of available donors. Pluripotent stem cells have advanced research in the fields of stem cell biology, drug development, disease modeling, and regenerative medicine, and importantly allows for the interrogation of therapeutic interventions...
2017: Review of Diabetic Studies: RDS
https://www.readbyqxmd.com/read/28628672/low-dose-exposure-to-bisphenols-a-f-and-s-of-human-primary-adipocyte-impacts-coding-and-non-coding-rna-profiles
#2
Marie Verbanck, Mickaël Canouil, Audrey Leloire, Véronique Dhennin, Xavier Coumoul, Loïc Yengo, Philippe Froguel, Odile Poulain-Godefroy
Bisphenol A (BPA) exposure has been suspected to be associated with deleterious effects on health including obesity and metabolically-linked diseases. Although bisphenols F (BPF) and S (BPS) are BPA structural analogs commonly used in many marketed products as a replacement for BPA, only sparse toxicological data are available yet. Our objective was to comprehensively characterize bisphenols gene targets in a human primary adipocyte model, in order to determine whether they may induce cellular dysfunction, using chronic exposure at two concentrations: a "low-dose" similar to the dose usually encountered in human biological fluids and a higher dose...
2017: PloS One
https://www.readbyqxmd.com/read/28628651/the-density-of-parasympathetic-axons-is-reduced-in-the-exocrine-pancreas-of-individuals-recently-diagnosed-with-type-1-diabetes
#3
Marcus Lundberg, Andreas Lindqvist, Nils Wierup, Lars Krogvold, Knut Dahl-Jørgensen, Oskar Skog
To elucidate the etiology of type 1 diabetes, the affected pancreas needs to be thoroughly characterized. Pancreatic innervation has been suggested to be involved in the pathology of the disease and a reduction of sympathetic innervation of the islets was recently reported. In the present study, we hypothesized that parasympathetic innervation would be altered in the type 1 diabetes pancreas. Human pancreatic specimens were obtained from a unique cohort of individuals with recent onset or long standing type 1 diabetes...
2017: PloS One
https://www.readbyqxmd.com/read/28625707/-algorithms-based-on-medico-administrative-data-in-the-field-of-endocrine-nutritional-and-metabolic-diseases-especially-diabetes
#4
S Fosse-Edorh, A Rigou, S Morin, L Fezeu, L Mandereau-Bruno, A Fagot-Campagna
BACKGROUND: Medico-administrative databases represent a very interesting source of information in the field of endocrine, nutritional and metabolic diseases. The objective of this article is to describe the early works of the Redsiam working group in this field. METHODS: Algorithms developed in France in the field of diabetes, the treatment of dyslipidemia, precocious puberty, and bariatric surgery based on the National Inter-schema Information System on Health Insurance (SNIIRAM) data were identified and described...
June 15, 2017: Revue D'épidémiologie et de Santé Publique
https://www.readbyqxmd.com/read/28624501/new-biomarkers-for-diagnosis-and-management-of-polycystic-ovary-syndrome
#5
REVIEW
Sidika E Karakas
Polycystic ovary syndrome (PCOS) is the most common endocrine disorder affecting young women. Even though the definition of PCOS has changed over the years, all diagnostic criteria include two or more of the following: oligomenorrhea/oligoovulation/anovulation, androgen excess and polycystic ovaries (PCO). Traditional method of assessing the ovarian morphology has been transvaginal pelvic ultrasound. Recent studies support that serum anti-Mullerian hormone (AMH) levels correlate with the number of ovarian follicles and cysts...
June 14, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28623529/ameliorative-effect-of-omega-3-on-spermatogenesis-testicular-antioxidant-status-and-preimplantation-embryo-development-in-streptozotocin-induced-diabetes-in-rats
#6
Mehdi Khavarimehr, Vahid Nejati, Mazdak Razi, Gholamreza Najafi
PURPOSE: The present study was done to determine the ameliorative effect of polyunsaturated fatty acid omega-3 against experimental diabetes-induced damages on testicular tissue, sperm parameters and preimplantation embryo development in rat model. METHODS: Thirty-two mature male rats were divided into two control and test groups. The experimental diabetes (50 mg kg(-1) streptozotocin, ip) was induced in test group and subdivided into non-treated diabetic, 300 and 600 mg kg(-1) omega-3-treated (orally by gavage) groups...
June 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28622905/discovery-of-novel-somatostatin-receptor-subtype-5-sstr5-antagonists-pharmacological-studies-and-design-to-improve-pharmacokinetic-profiles-and-human-ether-a-go-go-related-gene-herg-inhibition
#7
Takeshi Yamasaki, Hideki Hirose, Tohru Yamashita, Nobuyuki Takakura, Sachie Morimoto, Takashi Nakahata, Asato Kina, Yoshihide Nakano, Yumiko Okano Tamura, Jun Sugama, Tomoyuki Odani, Yuji Shimizu, Shinji Iwasaki, Masanori Watanabe, Tsuyoshi Maekawa, Shizuo Kasai
Somatostatin (SST) is a peptide hormone comprising 14 or 28 amino acids that inhibits endocrine and exocrine secretion via five distinct G-protein-coupled receptors (SSTR1-5). SSTR5 has an important role in inhibiting the secretion of pancreatic and gastrointestinal hormones (e.g., insulin, GLP-1, PYY) through the binding of SSTs; hence, SSTR5 antagonists are expected to be novel anti-diabetic drugs. In the course of our lead generation program of SSTR5 antagonists, we have discovered a novel spiroazetidine derivative 3a...
June 13, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28617859/co-localization-of-acinar-markers-and-insulin-in-pancreatic-cells-of-subjects-with-type-2-diabetes
#8
Matilde Masini, Lorella Marselli, Eddy Himpe, Luisa Martino, Marco Bugliani, Mara Suleiman, Ugo Boggi, Franco Filipponi, Margherita Occhipinti, Luc Bouwens, Vincenzo De Tata, Piero Marchetti
To search for clues suggesting that beta cells may generate by transdifferentiation in humans, we assessed the presence of cells double positive for exocrine (amylase, carboxypeptidase A) and endocrine (insulin) markers in the pancreas of non-diabetic individuals (ND) and patients with type 2 diabetes (T2D). Samples from twelve ND and twelve matched T2D multiorgan donors were studied by electron microscopy, including amylase and insulin immunogold labeling; carboxypeptidase A immunofluorescence light microscopy assessment was also performed...
2017: PloS One
https://www.readbyqxmd.com/read/28614797/neuropeptide-y-expression-marks-partially-differentiated-%C3%AE-cells-in-mice-and-humans
#9
Pope Rodnoi, Mohan Rajkumar, Abu Saleh Md Moin, Senta K Georgia, Alexandra E Butler, Sangeeta Dhawan
β Cells are formed in embryonic life by differentiation of endocrine progenitors and expand by replication during neonatal life, followed by transition into functional maturity. In this study, we addressed the potential contribution of neuropeptide Y (NPY) in pancreatic β cell development and maturation. We show that NPY expression is restricted from the progenitor populations during pancreatic development and marks functionally immature β cells in fetal and neonatal mice and humans. NPY expression is epigenetically downregulated in β cells upon maturation...
June 15, 2017: JCI Insight
https://www.readbyqxmd.com/read/28614051/cardiac-anomalies-and-associated-comorbidities-in-a-large-adolescent-population
#10
Daniel Lyon Fink, Yossy Machluf, Rivka Farkash, Giora Weisz, Avinoam Pirogovsky, Orna Tal, David Dagan, Yoram Chaiter
OBJECTIVE: To determine the prevalence, secular trends and associations of heart disease in a large unscreened, otherwise basically healthy, adolescent population. SUBJECTS AND METHODS: Cross-sectional study of the cardiac status of 113,694 adolescents from the northern district of Israel, who completed the profiling process between the ages of 16 and 19, including all essential measures over a 22-year period. Results of imaging were categorized as either isolated valvar or structural abnormalities, and their clinically significant subgroups defined prospectively...
June 14, 2017: International Journal of Adolescent Medicine and Health
https://www.readbyqxmd.com/read/28609678/glucocorticoid-mediated-activation-of-gsk3%C3%AE-promotes-tau-phosphorylation-and-impairs-memory-in-type-2-diabetes
#11
Aditi Dey, Shuai Hao, Marlena Wosiski-Kuhn, Alexis M Stranahan
Type 2 diabetes is increasingly recognized as a risk factor for Alzheimer's disease, but the underlying mechanisms remain poorly understood. Hyperphosphorylation of the microtubule-associated protein tau has been reported in rodent models of diabetes, including db/db mice, which exhibit insulin resistance and chronically elevated glucocorticoids due to leptin receptor insufficiency. In this report, we investigated endocrine mechanisms for hippocampal tau phosphorylation in db/db and wild-type mice. By separately manipulating peripheral and intrahippocampal corticosterone levels, we determined that hippocampal corticosteroid exposure promotes tau phosphorylation and activates glycogen synthase kinase 3β (GSK3β)...
May 19, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/28609558/ipsc-technology-based-regenerative-therapy-for-diabetes
#12
REVIEW
Yasushi Kondo, Taro Toyoda, Nobuya Inagaki, Kenji Osafune
The directed differentiation of human pluripotent stem cells, such as embryonic stem cells (hESCs) and induced pluripotent stem cells (hiPSCs), into pancreatic endocrine lineages has been vigorously examined by reproducing the in vivo developmental processes of pancreas. Recent advances in this research field have enabled the generation from hESCs/iPSCs of functionally mature β-like cells in vitro that show glucose-responsive insulin secretion ability. The therapeutic potentials of hESC/iPSC-derived pancreatic cells have been evaluated using diabetic animal models, and transplantation methods including immunoprotective devices that prevent immune responses from hosts to the implanted pancreatic cells have been investigated towards the development of regenerative therapies against diabetes...
June 13, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28608050/metabolic-and-androgen-profile-in-underweight-women-with-polycystic-ovary-syndrome
#13
Olympia E Anastasiou, Ali Canbay, Dagmar Fuhrer, Susanne Reger-Tan
INTRODUCTION: Polycystic ovary syndrome (PCOS) is a disorder associated with insulin resistance and obesity. Aim of our study is to clarify the prevalence of underweight in PCOS patients and whether metabolic and androgen profiles of PCOS differ depending on normal or low body weight. METHODS: Out of 1269 consecutive patients with PCOS recruited from the Department of Endocrinology and Metabolism at the University of Duisburg-Essen, 19 patients (1.5%) were underweight and were compared to 375 lean PCOS subjects (29...
June 12, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28605119/aromatherapy-massage-for-neuropathic-pain-and-quality-of-life-in-diabetic-patients
#14
Zehra Gok Metin, Ayse Arikan Donmez, Nur Izgu, Leyla Ozdemir, Ismail Emre Arslan
PURPOSE: This study aimed to examine the effects of aromatherapy massage on neuropathic pain severity and quality of life (QoL) in patients suffering from painful diabetic neuropathy. DESIGN AND METHODS: This open-label randomized controlled clinical study was conducted in a university hospital endocrine outpatient clinic in Turkey. The study sample consisted of 46 patients, randomly allocated to an intervention group (n = 21) and a control group (n = 25). The intervention group received aromatherapy massage three times per week for a period of 4 weeks...
June 12, 2017: Journal of Nursing Scholarship
https://www.readbyqxmd.com/read/28603178/role-of-adipokines-in-cardiovascular-disease
#15
Wayne Bond Lau, Koji Ohashi, Yajing Wang, Hayato Ogawa, Toyoaki Murohara, Xin-Liang Ma, Noriyuki Ouchi
Cardiovascular disease (CVD) is the greatest cause of death, accounting for nearly one-third of all deaths worldwide. The increase in obesity rates over 3 decades is widespread and threatens the public health in both developed and developing countries. Obesity, the excessive accumulation of visceral fat, causes the clustering of metabolic disorders, such as type 2 diabetes, dyslipidemia, and hypertension, culminating in the development of CVD. Adipose tissue is not only an energy storage organ, but an active endocrine tissue producing various biologically active proteins known as adipokines...
June 10, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28597350/short-and-long-term-outcomes-of-the-frey-procedure-for-chronic-pancreatitis-a-single-center-experience-and-summary-of-outcomes-in-japan
#16
Kazuhiro Suzumura, Etsuro Hatano, Toshihiro Okada, Yasukane Asano, Naoki Uyama, Ikuo Nakamura, Seikan Hai, Jiro Fujimoto
PURPOSE: To evaluate the short- and long-term outcomes of the Frey procedure for chronic pancreatitis (CP). METHODS: The subjects of this study were 12 patients who underwent the Frey procedure for CP between January, 2000 and December, 2016. We assessed pain relief, weight gain, and exocrine/endocrine insufficiency during follow-up. RESULTS: The study population comprised 11 men and 1 woman (91.7% vs. 8.3%; mean age, 50.3 ± 6.8 years; range 39-61 years)...
June 8, 2017: Surgery Today
https://www.readbyqxmd.com/read/28595632/a-comparison-of-gene-expression-profiles-in-patients-with-coronary-artery-disease-type-2-diabetes-and-their-coexisting-conditions
#17
Rui Gong, Menghui Chen, Cuizhao Zhang, Manli Chen, Haibin Li
BACKGROUND: To support a hypothesis that there is an intrinsic interplay between coronary artery disease (CAD) and type 2 diabetes (T2D), we used RNA-seq to identify unique gene expression signatures of CAD, T2D, and coexisting conditions. METHODS: After transcriptome sequencing, differential expression analysis was performed between each disordered state and normal control group. By comparing gene expression profiles of CAD, T2D, and coexisting conditions, common and specific patterns of each disordered state were displayed...
June 8, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28593552/a-reformed-surgical-treatment-modality-for-children-with-giant-cystic-craniopharyngioma
#18
Wanchun Zhu, Xiang Li, Jintao He, Tao Sun, Chunde Li, Jian Gong
OBJECTIVE: Surgical removal plays an important role in treating children's craniopharyngioma. For a safe and minimally invasive craniotomy, a reformed surgical modality was proposed in this paper by combining the insertion of an Ommaya reservoir system (ORS) by stereotactic puncture, aspiration of cystic fluid in 2-day interval for consecutive 7-10 days, and the delayed tumor resection. PATIENTS AND METHODS: Eleven patients (aged from 5 to 9 years old) with giant cystic craniopharyngiomas who had undergone the reformed surgical modality during November 2014 and December 2015 were collected as group A...
June 7, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28592815/impact-of-genotype-on-endocrinal-complications-of-children-with-alpha-thalassemia-in-china
#19
Hong-Cheng Luo, Qi-Sheng Luo, Fu-Gao Huang, Chun-Fang Wang, Ye-Sheng Wei
Alpha-thalassemia occurs with high frenquency in China. Four common α-globin gene deletion mutations (-SEA, -α3.7, and -α4.2, Haemoglobin Constant Spring (CS) mutation) were identified in Chinese patients. Individuals with alpha-thalassemia syndrome are more often of children. However report on endocrinal complications in children with alpha thalassemia in China are still absent. The present study aimed to investigate the impact of genotype on endocrinal complications in Chinese children. Association analysis between genotype and endocrinal compliaction development was conducted on 200 patients with 200 healthy controls...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28591650/long-term-culture-of-self-renewing-pancreatic-progenitors-derived-from-human-pluripotent-stem-cells
#20
Jamie Trott, Ee Kim Tan, Sheena Ong, Drew M Titmarsh, Simon L I J Denil, Maybelline Giam, Cheng Kit Wong, Jiaxu Wang, Mohammad Shboul, Michelle Eio, Justin Cooper-White, Simon M Cool, Giulia Rancati, Lawrence W Stanton, Bruno Reversade, N Ray Dunn
Pluripotent stem cells have been proposed as an unlimited source of pancreatic β cells for studying and treating diabetes. However, the long, multi-step differentiation protocols used to generate functional β cells inevitably exhibit considerable variability, particularly when applied to pluripotent cells from diverse genetic backgrounds. We have developed culture conditions that support long-term self-renewal of human multipotent pancreatic progenitors, which are developmentally more proximal to the specialized cells of the adult pancreas...
June 6, 2017: Stem Cell Reports
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