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Insulin antibodies

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https://www.readbyqxmd.com/read/28445413/identification-of-highly-specific-scfvs-against-total-adiponectin-for-diagnostic-purposes
#1
Peter Wilton, Michael Steidel, Gabriele Krczal, Iris Hermanns, Andreas Pfützner, Alisa Konnerth, Kajohn Boonrod
Adiponectin is one of the most abundant adipokines secreted from adipose tissue. It acts as an endogenous insulin sensitizer and plasma concentrations are inversely correlated with obesity and metabolic syndrome. A decrease in plasma adiponectin levels normally indicates increased hormonal activity of the visceral lipid tissue, which is associated with decreased insulin sensitivity. It may therefore be considered a valuable biomarker for elucidating the underlying deteriorations resulting in type 2 diabetes and macrovascular disease...
April 26, 2017: Biology
https://www.readbyqxmd.com/read/28443261/diabetes-mellitus-caused-by-secondary-hemochromatosis-after-multiple-blood-transfusions-in-2-patients-with-severe-aplastic-anemia
#2
Hyun Jin Kim, Yoon-Myung Kim, Eungu Kang, Beom Hee Lee, Jin-Ho Choi, Han-Wook Yoo
Hemochromatosis is an inherited or secondary disorder caused by excessive iron storage leading to multiple organ damage. We describe 2 patients with diabetes mellitus caused by hemochromatosis secondary to multiple blood transfusions due to severe aplastic anemia. Subject 1, who was diagnosed with severe aplastic anemia at 15 years of age, received multiple red blood cell transfusions before he underwent autologous peripheral blood stem cell transplantation (PBSCT) at 22 years of age. At 21 years of age, hyperglycemia was detected with increased hemoglobin A1c and serum ferritin levels, 9...
March 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28440768/clinical-and-metabolic-profile-of-patients-with-latent-autoimmune-diabetes-in-adults-in-specialized-care-in-madrid
#3
Alfonso Arranz Martín, Edurne Lecumberri Pascual, Miguel Ángel Brito Sanfiel, Víctor Andía Melero, Lia Nattero Chavez, Iván Sánchez López, Gloria Cánovas Molina, Francisco Arrieta Blanco, Noemí González Perez Del Villar
OBJECTIVE: To report the clinical characteristics of patients with latent autoimmune diabetes in adults (LADA), and to ascertain their metabolic control and associated chronic complications. METHODS: Patients with DM attending specialized medical care in Madrid who met the following criteria: age at diagnosis of DM >30years, initial insulin independence for at least 6months and positive GAD antibodies were enrolled. Clinical profiles, data on LADA diagnosis, associated autoimmunity, C-peptide levels, therapeutic regimen, metabolic control, and presence of chronic complications were analyzed...
January 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28438156/relative-contribution-of-type-1-and-type-2-diabetes-loci-to-the-genetic-etiology-of-adult-onset-non-insulin-requiring-autoimmune-diabetes
#4
Rajashree Mishra, Alessandra Chesi, Diana L Cousminer, Mohammad I Hawa, Jonathan P Bradfield, Kenyaita M Hodge, Vanessa C Guy, Hakon Hakonarson, Didac Mauricio, Nanette C Schloot, Knud B Yderstræde, Benjamin F Voight, Stanley Schwartz, Bernhard O Boehm, Richard David Leslie, Struan F A Grant
BACKGROUND: In adulthood, autoimmune diabetes can present as non-insulin-requiring diabetes, termed as 'latent autoimmune diabetes in adults' (LADA). In this study, we investigated established type 1 diabetes (T1D) and type 2 diabetes (T2D) genetic loci in a large cohort of LADA cases to assess where LADA is situated relative to these two well-characterized, classic forms of diabetes. METHODS: We tested the association of T1D and T2D GWAS-implicated loci in 978 LADA cases and 1057 non-diabetic controls of European ancestry using a linear mixed model...
April 25, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28429513/distribution-and-hormonal-characterization-of-primary-murine-l-cells-throughout-the-gastrointestinal-tract
#5
Kazuyo Suzuki, Kanako Iwasaki, Yuki Murata, Norio Harada, Shunsuke Yamane, Akihiro Hamasaki, Kimitaka Shibue, Erina Joo, Akiko Sankoda, Yuta Fujiwara, Yoshitaka Hayashi, Nobuya Inagaki
AIMS/INTRODUCTION: Glucagon-like peptide-1 (GLP-1) secreted from enteroendocrine L-cells is an incretin that potentiates insulin secretion and is already applied in therapies for type 2 diabetes. However, detailed examination of L-cells throughout the gastrointestinal (GI) tract remains unclear, because of difficulties in purifying scattered L-cells from other cells. In the present study, we identified characteristics of L-cells of the upper small intestine (UI), the lower small intestine (LI) and the colon using glucagon (Gcg)-green fluorescent protein (GFP)-expressing mice that express GFP driven by the proglucagon promoter...
April 20, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28427155/update-of-igf-1-receptor-inhibitor-ganitumab-dalotuzumab-cixutumumab-teprotumumab-and-figitumumab-effects-on-cancer-therapy
#6
REVIEW
Xiao Qu, Zhinan Wu, Wei Dong, Tiehong Zhang, Liguang Wang, Zhaofei Pang, Wei Ma, Jiajun Du
BACKGROUND: Prognostic studies of insulin-like growth factor-1 receptor(IGF-1R) inhibitors in cancer therapy had promising results in infratests, which exhibited that IGF-1R signalling was crucial in cancer cells growth. However, the conclusion of later clinical trials revealed a dim future for IGF-1R inhibitors to treat cancer. We conducted this analysis to figure out how IGF-1R inhibitors acted in clinical cancer therapy. MATERIAL AND METHODS: We searched up-to-date studies about the single agent of IGF-1R inhibitors or combination with other therapies in solid tumor...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424924/effects-of-gw002-a-novel-recombinant-human-glucagon-like-peptide-1-glp-1-analog-fusion-protein-on-cho-recombinant-cells-and-bks-db-mice
#7
Wan-Wan Ji, Dong-An Yu, Min Fan, Meng You, You Lu, Er-Bing Li, Ning Xie, Shou-Sheng Yan
AIMS: GLP-1-based strategies have many advantages in treatment of type 2 diabetes mellitus (T2DM), but native GLP-1 has a short half-life in the circulation, which limits its clinical application. The purpose of this study was to evaluate the effects of GW002, a novel recombinant GLP-1 analog fusion protein produced by linking the human GLP-1 analog C-terminus to the N-terminus of human serum albumin via a linker, in vitro and in BKS-db mice. METHODS: To determine whether GW002 can activate the GLP-1 receptor in cells, the level of luciferase expression was evaluated in vitro...
April 19, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/28423240/biochemical-cellular-physiological-and-pathological-consequences-of-human-loss-of-n-glycolylneuraminic-acid
#8
Jonathan Okerblom, Ajit Varki
About 2-3 million years ago, Alu-mediated deletion of a critical exon in the CMAH gene became fixed in the hominin lineage ancestral to humans, possibly through a stepwise process of selection by pathogen targeting of the CMAH product (the sialic acid Neu5Gc), followed by reproductive isolation via female anti-Neu5Gc antibodies. Loss of CMAH has occurred independently in some other lineages, but is functionally intact in Old World primates, including our closest relatives, the chimpanzees. While the biophysical and biochemical ramifications of losing tens of millions of Neu5Gc hydroxyl groups at most cell surfaces remains poorly understood, there are multi-scale effects functionally relevant to both sides of the host-pathogen interface...
April 19, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28422186/high-fat-diet-induces-systemic-b-cell-repertoire-changes-associated-with-insulin-resistance
#9
T D Pham, M H Y Chng, K M Roskin, K J L Jackson, K D Nguyen, J Glanville, J-Y Lee, E G Engleman, S D Boyd
The development of obesity-associated insulin resistance is associated with B-lymphocyte accumulation in visceral adipose tissue (VAT) and is prevented by B-cell ablation. To characterize potentially pathogenic B-cell repertoires in this disorder, we performed high-throughput immunoglobulin (Ig) sequencing from multiple tissues of mice fed high-fat diet (HFD) and regular diet (RD). HFD significantly changed the biochemical properties of Ig heavy-chain complementarity-determining region-3 (CDRH3) sequences, selecting for IgA antibodies with shorter and more hydrophobic CDRH3 in multiple tissues...
April 19, 2017: Mucosal Immunology
https://www.readbyqxmd.com/read/28418115/aggravation-of-diabetes-and-incompletely-deficient-insulin-secretion-in-a-case-with-type-1-diabetes-resistant-hla-drb1-15-02-treated-with-nivolumab
#10
Kimio Matsumura, Kaoru Nagasawa, Yoichi Oshima, Shouta Kikuno, Kyohei Hayashi, Akihiro Nishimura, Minoru Okubo, Hironori Uruga, Kazuma Kishi, Tetsuro Kobayashi, Yasumichi Mori
Anti-programmed cell death-1 (PD-1) antibody therapy induces various adverse effects especially in endocrine systems. Several cases of acute onset insulin-dependent diabetes after anti-PD-1 antibody therapy have been reported. Many of these cases have a susceptible HLA genotype for type 1 diabetes possibly suggesting that human leukocyte antigen (HLA) might be involved in the onset of diabetes with anti PD-1 therapy. We describe an atypical case of hyperglycemia after anti PD-1 antibody administration. A 68-year-old Japanese man with pancreatic diabetes and steroid diabetes was administered nivolumab three times for chemoresistant adenocarcinoma of the lung...
April 18, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28417501/d-dimer-level-in-association-with-humoral-responses-negatively-correlates-with-survival-of-porcine-islet-grafts-in-non-human-primates-with-immunosuppression
#11
Hee Jung Kang, Haneulnari Lee, Eun Mi Park, Jong-Min Kim, Byoung-Hoon Min, Chung-Gyu Park
BACKGROUND: Several immunosuppression (IS) regimens achieve long-term graft survival in non-human primates (NHPs) after porcine islet transplantation (PITx), but their success rates vary. To understand the mechanism of graft loss, we investigated the relationships between graft survival and humoral or inflammatory responses for maintenance IS in NHPs after PITx. METHODS: Islets purified from adult wild-type pigs were intraportally transplanted into streptozotocin-induced diabetic rhesus monkeys...
April 18, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28414668/autoimmune-diabetes-presented-with-diabetic-ketoacidosis-induced-by-immunotherapy-in-an-adult-with-melanoma
#12
A A Alzenaidi, J Dendy, L Rejjal
INTRODUCTION: Immunotherapy has been approved for treatment of melanoma. Autoimmune endocrinopathies have been reported in trials involving immunotherapy but autoimmune diabetes has not been definitively linked to them. Here we describe a case of autoimmune diabetes presenting with DKA after receiving combined immunotherapy with anti-CTLA4 and anti-PD1 monoclonal antibodies. CASE: A 47year old gentleman with metastatic melanoma presented to our institution with confusion, abdominal pain and decreased oral intake...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28414146/tissue-distribution-of-a-therapeutic-monoclonal-antibody-determined-by-large-pore-microdialysis
#13
Satyawan B Jadhav, Vipada Khaowroongrueng, Matthias Fueth, Michael B Otteneder, Wolfgang Richter, Hartmut Derendorf
Therapeutic monoclonal antibodies (mAbs) exhibit limited distribution to the target tissues. Determination of target tissue interstitial concentration of mAbs is an important aspect in the assessment of their pharmacokinetic/pharmacodynamics (PK/PD) relationship especially for mAbs targeting membrane bound receptors. The pharmacokinetics of R7072, a full length mAb (IgG) targeting human insulin like growth factor-1 receptor (IGF-1R) was evaluated following a single intravenous (IV) dose at 1, 6.25 and 25 mg/kg in healthy female SCID-beige mice...
April 13, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28413215/successful-withdrawal-of-insulin-therapy-after-post-treatment-clearance-of-hepatitis-c-virus-in-a-man-with-type-2-diabetes
#14
Timothy M E Davis, Wendy A Davis, Gary Jeffrey
BACKGROUND Chronic hepatitis C virus (HCV) infection is associated with increased insulin resistance and risk of type 2 diabetes. Successful antiviral treatment can improve insulin resistance and allow a reduction in blood glucose-lowering treatment. There have been case reports of a reduced insulin requirement in this situation, although 1 case in which insulin was stopped exhibited a subsequent deterioration in glycemic control. CASE REPORT A 55-year-old Italian man was diagnosed with HCV infection in 2000 at the age of 39 years and with type 2 diabetes 6 years later...
April 17, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28407789/identification-and-functional-characterisation-of-a-schistosoma-japonicum-insulin-like-peptide
#15
Xiaofeng Du, Donald P McManus, Pengfei Cai, Wei Hu, Hong You
BACKGROUND: Previous studies have shown that insulin receptors in schistosomes, triggered by host insulin, play an important role in parasite growth, development and fecundity by regulating glucose metabolism. However, limited information is available on the recently identified endogenous insulin-like peptide (ILP) in blood flukes. RESULTS: We isolated ILPs from Schistosoma japonicum (SjILP) and S. recognised (SmILP) and present results of their molecular and structural analysis...
April 14, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28405581/angiogenesis-in-newly-regenerated-bone-by-secretomes-of-human-mesenchymal-stem-cells
#16
Wataru Katagiri, Takamasa Kawai, Masashi Osugi, Yukiko Sugimura-Wakayama, Kohei Sakaguchi, Taku Kojima, Tadaharu Kobayashi
BACKGROUND: For an effective bone graft for reconstruction of the maxillofacial region, an adequate vascular network will be required to supply blood, osteoprogenitor cells, and growth factors. We previously reported that the secretomes of bone marrow-derived mesenchymal stem cells (MSC-CM) contain numerous growth factors such as insulin-like growth factor (IGF)-1, transforming growth factor (TGF)-β1, and vascular endothelial growth factor (VEGF), which can affect the cellular characteristics and behavior of regenerating bone cells...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28401443/prevalence-of-hypophysitis-in-a-cohort-of-patients-with-metastatic-melanoma-and-prostate-cancer-treated-with-ipilimumab
#17
Lucia Brilli, Riccardo Danielli, Cristina Ciuoli, Luana Calabrò, Anna Maria Di Giacomo, Alfonso Cerase, Patrizia Paffetti, Fausta Sestini, Brunetta Porcelli, Michele Maio, Furio Pacini
OBJECTIVE: Ipilimumab is a human monoclonal antibody directed against cytotoxic T-lymphocyte antigen-4, that has been shown to significantly improve survival in patients with metastatic melanoma. Blocking cytotoxic T-lymphocyte antigen-4 elicits T cell activation, proliferation and anti-tumor response, but can also trigger immune-related adverse events. Among immune-related endocrinopathies, hypophysitis represents the most frequent, with an incidence up to 17% in patients treated with ipilimumab...
April 12, 2017: Endocrine
https://www.readbyqxmd.com/read/28401408/fluorescence-immunosensing-of-insulin-via-protein-functionalized-gold-nanoclusters
#18
Shalini Menon, K Girish Kumar
A novel fluorescent immunosensor for the determination of insulin, an important peptide hormone, has been fabricated in homogeneous solution. Bovine serum albumin (BSA) capped gold nanoclusters (AuNCs), being highly biocompatible, were used to label the insulin antibody (Ab). In presence of the target antigen, insulin (Ag), specific immunoreaction between Ab and Ag takes place leading to the fluorescence recovery of AuNCs that provided signal readout for the immunosensing process. A linear relationship between the fluorescence signal and concentration of insulin was obtained in the range of 4...
April 11, 2017: Journal of Fluorescence
https://www.readbyqxmd.com/read/28400351/frequency-of-nodular-goiter-and-autoimmune-thyroid-disease-and-association-of-these-disorders-with-insulin-resistance-in-polycystic-ovary-syndrome
#19
Melia Karaköse, Sema Hepsen, Erman Çakal, Müyesser Saykı Arslan, Esra Tutal, Şafak Akın, İlknur Ünsal, Mustafa Özbek
OBJECTIVE: Polycystic ovary syndrome (PCOS) is a frequent endocrine disease in women. Nodular goiter and autoimmune thyroid disease (AITD) are the endocrinological abnormalities that have high prevalence. The purpose of our study was to detect the prevalence of AITD and nodular goiter in PCOS patients and investigate whether PCOS related hormones and metabolic factors affect these thyroid disorders. MATERIAL AND METHODS: Ninety-seven with PCOS and seventy-one healthy female volunteers were recruited in the study...
February 7, 2017: Journal of the Turkish German Gynecological Association
https://www.readbyqxmd.com/read/28396299/plasma-cytokine-profiling-to-predict-susceptibility-to-acute-mountain-sickness
#20
Hui Lu, Rong Wang, Wenbin Li, Hua Xie, Chang Wang, Ying Hao, Yuhuan Sun, Zhengping Jia
Extensive studies have been performed on acute mountain sickness (AMS), but biomarkers predicting AMS are lacking. Presently, the mainstay methods to identify AMS biomarkers include proteomic and genetic methods at high altitudes or in hypoxic simulated chambers. In the present study, we compared plasma cytokine profiles between AMS-susceptible individuals and AMS-resistant individuals at low altitude by cytokine array analysis. In total, 75 differentially expressed cytokines were identified between AMS-susceptible individuals and AMS-resistant individuals, most involved in inflammation...
November 1, 2016: European Cytokine Network
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