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Berglind Jonsdottir, Christer Larsson, Annelie Carlsson, Gun Forsander, Sten Anders Ivarsson, Åke Lernmark, Johnny Ludvigsson, Claude Marcus, Ulf Samuelsson, Eva Örtqvist, Helena Elding Larsson
CONTEXT: Screening of autoimmune thyroid disease in children and young adults with Type 1 diabetes is important but vary greatly between clinics. OBJECTIVE: The aim was to determine the predictive value of thyroid autoantibodies, thyroid function, islet autoantibodies, and HLA- DQ at diagnosis of Type 1 diabetes for autoimmune thyroid disease during subsequent follow-up. SETTING: 43 Paediatric Endocrinology units Sweden. Design, patients and main outcome measures: At diagnosis of Type 1 diabetes, samples from 2433 children were analysed for autoantibodies against thyroid peroxidase (TPOAb), thyroglobulin (TGAb), glutamic acid decarboxylase (GADA), insulin (IAA), insulinoma-associated protein-2 (IA-2A), and the three variants of the zinc transporter 8 (ZnT8W/R/QA) as well as HLA-DQA1-B1 genotypes and thyroid function...
October 14, 2016: Journal of Clinical Endocrinology and Metabolism
Anjali Rajadhyaksha, Archana Sonawale, Ashwin Chichkhede, Abhishek Zanwar
We present the case of a 70 year old man who was admitted with history of generalized tonic clonic seizures on and off since 6 years in spite of being on regular therapy with anticonvulsants. Patient was found to have hypoglycemia and was evaluated for same. He was diagnosed to have endogenous hyperinsulinemia due to pancreatic insulinoma. Patient underwent enucleation of tumor and was relieved of his symptoms.
June 2016: Journal of the Association of Physicians of India
Karolína Drbalová, Kateřina Herdová, Petr Krejčí, Monika Nývltová, Svatopluk Solař, Lenka Vedralová, Pavel Záruba, David Netuka, Petr Bavor
Multiple Endocrine Neoplasia (MEN) is a condition in which several endocrine organs of an individual are affected by adenoma, hyperplasia and less often carcinoma, either simultaneously or at different stages of life. Two existing syndromes, MEN1 and MEN2 (2A, 2B), in literature is also mentioned MEN4, are associated also with other non-endocrine disorders. MEN1 (Wermer syndrome) affects the pituitary, parathyroid, and pancreatic area. 95 % of patients show very early manifestation of hyperparathyroidism, often before 40 years of age...
2016: Vnitr̆ní Lékar̆ství
Xu Li, Feng Zhang, Haibing Chen, Haoyong Yu, Jian Zhou, Ming Li, Qing Li, Lianxi Li, Jun Yin, Fang Liu, Yuqian Bao, Junfeng Han, Weiping Jia
The 72-hour fast test is the current standard for the diagnosis of insulinoma. However, to conduct this test patients require hospitalization due to the chance of severe hypoglycemic episodes. Thus, it is costly and stressful for the patient. An out-patient test would serve the patient better and be more economical. Our aim was to evaluate the value of insulin to glucose and C-peptide to glucose ratios during a prolonged 5-hour oral glucose tolerance test (5-hour OGTT) in qualitative diagnosis of insulinoma, and to identify the optimal threshold for clinical screening...
October 1, 2016: Endocrine Journal
Cornelius Kürten, Mladen Tzvetkov, Volker Ellenrieder, Harald Schwörer
History and clinical findings | We report about a 79 year old non-diabetic patient who was admitted to the emergency room with severe hypoglycemia (blood glucose level: 36 mg / dl and Glasgow Coma Scale Score: 3). After the infusion of G40 % her blood glucose level stabilised. The patient reported to have taken 50 mg of Tramadol during the night to treat her headache. Investigations and diagnosis | No other differential diagnosis for hypoglycemia (i.e. diabetes, insulinoma, severe liver or kidney disease) could be established...
September 2016: Deutsche Medizinische Wochenschrift
Jiali Pu, Baorong Zhang, Xinzhen Yin
Insulinoma is a rare neuroendocrine tumor. Hypersomnia as the first presentation in a patient with insulinoma is even more rare and may be easy to misdiagnose. We are herein reporting a case of insulinoma initially presenting with prolonged sleep time and extreme difficulty in waking. The abovementioned symptoms occurred every 2-3 months. Over the last 2 months, the attacks had become more frequent and severe. On computed tomography examination, a 12×9-mm cystic nodule was detected in the uncinate process of the pancreas, which was pathologically diagnosed as insulinoma...
October 2016: Molecular and Clinical Oncology
Balekari Umamahesh, Ciddi Veeresham
AIM: Abrus precatorius leaves methanolic extract (APME) was evaluated for in vivo antihyperglycemic activity and in vitro insulinotropic effect. MATERIALS AND METHODS: In vivo antihyperglycemic and insulin secretagogue activities were assessed in streptozotocin-induced diabetic rats by oral administration of APME (200 mg/kg body weight [bw]) for 28 days. In vitro insulin secretion mechanisms were studied using mouse insulinoma beta cells (MIN6-β). In vivo body weight and blood glucose and in vivo and in vitro insulin levels were estimated...
October 2016: Pharmacognosy Research
Jennifer L Bosse, Heithem M El-Hodiri
The insulinoma-associated 1 (insm1) gene is involved in the differentiation of several neuronal and endoderm derived cell types. insm1 is expressed in the retina and brain of several vertebrates including Xenopus laevis. We report the detailed expression pattern of insm1 in the X. laevis tadpole retina and brain. X. laevis insm1 is expressed in most of the ciliary marginal zone of the mature retina and the optic tectum, dorsal pallium, hypothalamus and preoptic areas of the developing tadpole brain. Overall, insm1 is expressed in regions of the tadpole brain and retina harboring populations of progenitor cells...
September 23, 2016: Gene Expression Patterns: GEP
Lene E Johannessen, Ioannis Panagopoulos, Sven-Petter Haugvik, Ivar Prydz Gladhaug, Sverre Heim, Francesca Micci
Fusion transcripts arising from the combination of exons residing on neighboring genes on the same chromosome may give rise to chimeric or novel proteins. Such read-through transcripts have been detected in different cancers where they may be of pathogenetic interest. In this study, we describe for the first time the expression of a read-through transcript in insulinomas, a functioning neuroendocrine pancreatic neoplasm. The read-through transcript INS-IGF2, composed of exons from the two genes proinsulin precursor (INS) and insulin‑like growth factor 2 (IGF2), both mapping to chromosomal subband 11p15...
September 23, 2016: Oncology Reports
Sampanna Jung Rayamajhi, Jeff Lee, Bhagwant Rai Mittal, Aaron Craig Jessop, Beth Chasen, Priya Bhosale
Insulinomas are rare neuroendocrine tumors which occur predominantly in the pancreas. Although majority of the insulinomas are benign, over-secretion of insulin by the tumor leads to debilitating hypoglycemic symptoms. The diagnosis is based on clinical and biochemical findings. After the diagnosis is made, the principal challenge lies in locating the tumor because most tumors are solitary and small in size. Locating the tumor is of paramount importance as complete surgical excision is the only curative treatment, and incomplete resection leads to persistence of symptoms...
September 17, 2016: Abdominal Radiology
Nunzia Caporarello, Mario Salmeri, Marina Scalia, Carla Motta, Cristina Parrino, Lucia Frittitta, Melania Olivieri, Martina Cristaldi, Roberto Avola, Vincenzo Bramanti, Maria Antonietta Toscano, Carmelina Daniela Anfuso, Gabriella Lupo
It is suspected that microbial infections take part in the pathogenesis of diabetes mellitus type 1 (T1DM). Glucose-induced insulin secretion is accompanied by the release of free arachidonic acid (AA) mainly by cytosolic- and calcium independent phospholipases A2 (cPLA2 and iPLA2). Insulinoma cell line (INS-1E) was infected with E. coli isolated from the blood culture of a patient with sepsis. Invasion assay, Scanning Electron Microscopy and Transmission Electron Microscopy demonstrated the capacity of E. coli to enter cells, which was reduced by PLA2 inhibitors...
2016: PloS One
Zdeněk Fryšák, David Karásek
UNLABELLED: Decrease of blood glucose levels below 3 mmol/l is in fully developed cases accompanied by neuroglycopenic symptoms that may even lead to altered state of consciousness. The treating physician frequently faces a complicated situation. This may be due to inappropriately administered drugs including cases motivated by self-harm intentions (insulin, insulin secretagogues), or alcohol abuse. Undernourished people, or those afflicted with a serious systemic infection, end-stage liver or kidney diseases or with a failing heart, belong to a risk group...
2016: Vnitr̆ní Lékar̆ství
Milou Groot Nibbelink, Giulia Marchioli, Lorenzo Moroni, Marcel Karperien, Aart Van Apeldoorn
In vitro research in the field of type I diabetes is frequently limited by the availability of a functional model for islets of Langerhans. This method shows that by the addition of theophylline to the glucose buffers, mouse insulinoma MIN6 and rat insulinoma INS1E pseudo-islets can serve as a model for islets of Langerhans for in vitro research. The effect of theophylline is dose- and cell line-dependent, resulting in a minimal stimulation index of five followed by a rapid return to baseline insulin secretion by reducing glucose concentrations after a first high glucose stimulation...
2016: International Journal of Molecular Sciences
Sulagna Bhattacharjee, Anjolie Chhabra, Pradipta Barik, Bharathram Vasudevan, Amlesh Seth
No abstract text is available yet for this article.
July 2016: Journal of Anaesthesiology, Clinical Pharmacology
M V Davi, A Pia, V Guarnotta, G Pizza, A Colao, A Faggiano
BACKGROUND: Treatment of hyperinsulinemic hypoglycaemia (HH) is challenging due to the rarity of this condition and the difficulty of differential diagnosis. The aim of this article is to give an overview of the recent literature on the management of adult HH. METHODS: A search for reviews, original articles, original case reports between 1995 and 2016 in PubMed using the following keywords: hyperinsulinemic hypoglycaemia, insulinoma, nesidioblastosis, gastric bypass, autoimmune hypoglycaemia, hyperinsulinism, treatment was performed...
September 13, 2016: Journal of Endocrinological Investigation
Yi Shao, Yu-Qing Qu, Xian-Ling Wang, Zhi-Gang Song, Qing-Hua Guo, Jing-Tao Dou, Jian-Ming Ba, Zhao-Hui Lü, Yi-Ming Mu
OBJECTIVE: Patients with malignant insulinoma always present with symptoms of severe hypoglycemia and have poor life expectancy. In addition, inoperable metastatic malignant insulinomas are very difficult to manage. The aim of this report is to present our successful experiences in diagnosis and treatment of this disease in 6 patients. PATIENTS/METHODS: Six patients (male 2, female 4) with malignant insulinomas were admitted into our hospital. Their clinical histories, including clinical presentations, endocrine evaluations, radiological images, pathological examination and treatments, were reviewed...
July 12, 2016: Neuro Endocrinology Letters
Xingyun Hu, Shanying Liu, Xiaodan Liu, Jinglu Zhang, Ying Liang, Yan Li
Dipeptidyl peptidase-4 (CD26), a cell surface glycoprotein, is expressed by a variety of cells. It has been shown that dipeptidyl peptidase-4 (CD26) is involved in T cell activation. Nonetheless, its role in inflammatory effects in islet β cells has not been well investigated. In this study, we used sitagliptin, a classic inhibitor of dipeptidyl peptidase-4 (CD26), to research the effect of dipeptidyl peptidase-4 (CD26) on the activation of NF-κB, the expression of inflammatory cytokines, and cell apoptosis in rat insulinoma cells...
September 9, 2016: Endocrine
Julien Detour, Alice Pierre, Frederic Boisson, Guillaume Kreutter, Thomas Lavaux, Izzie Jacques Namer, Laurence Kessler, David Brasse, Patrice Marchand, Alessio Imperiale
: Patient premedication by carbidopa seems to improve the accuracy of 6-(18)F-fluoro-3,4-dihydroxy-L-phenylalanine ((18)F-FDOPA) positron emission tomography (PET) for insulinoma diagnosis. However, the risk of PET false negative result has been evoked using carbidopa. Consequently, we aim to evaluate the effect of carbidopa on (18)F-FDOPA uptake in insulinoma beta cells and insulinoma xenograft model in mice. METHODS: (18)F-FDOPA in vitro accumulation was assessed in the murine beta cell line RIN-m5F...
September 8, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
Jayant Gite, Rohit Shrivastav, Nikhil Bhasin, Puneet Mashru, Manish Itolikar, Milind Y Nadkar
Hirata disease is a rare disease characterised by recurrent episodes of hypoglycaemia due to anti-insulin antibody. In most of these cases causative agents were sulfhydryl containing compounds like Penicillamine, Glutathione, and Methimazole. The presentation of disease closely mimics insulinoma. We report 52 years female patient presenting with recurrent episodes of hypoglycaemia due to anti-insulin antibody. On evaluation, underlying cause of antibody was found to be monoclonal gammopathy of unknown significance (MGUS)...
October 2015: Journal of the Association of Physicians of India
Ophélie Bélissant Benesty, Thibaut Cassou-Mounat, Camille Vatier, Jean-Noël Talbot, Françoise Montravers
A 67-year-old woman was referred for staging of an insulinoma. CT has shown a pancreatic tumor, a portal thrombus, and an ovarian mass presumed not to be related with the insulinoma. These three lesions were highly positive on Ga DOTATOC PET/CT, leading to the hypothesis of a malignant insulinoma with neoplastic vein thrombus and ovarian metastasis, which was subsequently confirmed histologically. Despite severe hypoglycemia preventing fasting, F-FDG PET/CT was informative, showing significant uptake by the thrombus, which corresponded to the most aggressive lesion (Ki67 of 3...
November 2016: Clinical Nuclear Medicine
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