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https://www.readbyqxmd.com/read/29155309/prognostic-utility-of-total-68-ga-dotatate-avid-tumor-volume-in-patients-with-neuroendocrine-tumors
#1
Amit Tirosh, Georgios Z Papadakis, Corina Millo, Dima Hammoud, Samira M Sadowski, Peter Herscovitch, Karel Pacak, Stephen J Marx, Lily Yang, Pavel Nockel, Jasmine Shell, Patience Green, Xavier M Keutgen, Dhaval Patel, Naris Nilubol, Electron Kebebew
BACKGROUND & AIMS: Survival times vary among patients with neuroendocrine tumors (NETs)-even among those with the same site, stage, and grade of primary tumor. This makes it difficult to select treatment for patients with unresectable NETs, because some patients can survive decades without treatment. (68)Gallium-DOTATATE positron emission tomography with computed tomography ((68)Ga-DOTATATE PET/CT) is a sensitive imaging technique for detection of NETs. We investigated the prognostic accuracy of (68)Ga-DOTATATE PET/CT analysis of tumor volume in patients with NETs...
November 16, 2017: Gastroenterology
https://www.readbyqxmd.com/read/29137984/recombinant-human-glp-1-rhglp-1-alleviating-renal-tubulointestitial-injury-in-diabetic-stz-induced-rats
#2
Weiqin Yin, Shiqing Xu, Zai Wang, Honglin Liu, Liang Peng, Qing Fang, Tingting Deng, Wenjian Zhang, Jinning Lou
GLP-1-based treatment improves glycemia through stimulation of insulin secretion and inhibition of glucagon secretion. Recently, more and more findings showed that GLP-1 could also protect kidney from diabetic nephropathy. Most of these studies focused on glomeruli, but the effect of GLP-1 on tubulointerstitial and tubule is not clear yet. In this study, we examined the renoprotective effect of recombinant human GLP-1 (rhGLP-1), and investigated the influence of GLP-1 on inflammation and tubulointerstitial injury using diabetic nephropathy rats model of STZ-induced...
November 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29136782/effect-of-human-umbilical-cord-blood-derived-mononuclear-cells-on-diabetic-nephropathy-in-rats
#3
Nahla E El-Ashmawy, Eman G Khedr, Hoda A El-Bahrawy, Shimaa A El-Berashy
Diabetic nephropathy (DN) is damage to the kidney which can lead to chronic renal failure, eventually requiring dialysis. Diabetes mellitus is the most common cause of adult kidney failure worldwide in the developed world. The current work was designed to elucidate the effect of mononuclear cells (MNCs) injection on reverse DN in rats exposed to streptozotocin (STZ) injection compared to metformin as a known hypoglycemic drug, 40 Male rats were divided equally into 4 groups; normal control group, diabetic control group, MNCs group were diabetic rats treated with MNCs (30×10(6) MNCs/rat once iv dose) in the tail vein of the rat, and metformin group were diabetic rats treated with metformin (100mg/kg orally daily dose) for four weeks...
November 8, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29132133/endomorphins-promising-endogenous-opioid-peptides-for-the-development-of-novel-analgesics
#4
Zheng-Hui Gu, Bo Wang, Zhen-Zhen Kou, Yang Bai, Tao Chen, Yu-Lin Dong, Hui Li, Yun-Qing Li
Endomorphin-1 (EM1) and endomorphin-2 (EM2) are two endogenous ligands that belong to the opioid peptide family and have the highest affinity and selectivity for the µ-opioid receptor (MOR). The neuroanatomical distribution, ultrastructural features and neural circuitry of EM-containing neuronal structures have been morphologically demonstrated. In addition, the modulation effects of the EMs in different areas reflect their potential endogenous roles in many major physiological processes, including their remarkable roles in the transmission and modulation of noxious information...
November 13, 2017: Neuro-Signals
https://www.readbyqxmd.com/read/29123184/urinary-peptidomics-analysis-reveals-proteases-involved-in-diabetic-nephropathy
#5
Magdalena Krochmal, Georgia Kontostathi, Pedro Magalhães, Manousos Makridakis, Julie Klein, Holger Husi, Johannes Leierer, Gert Mayer, Jean-Loup Bascands, Colette Denis, Jerome Zoidakis, Petra Zürbig, Christian Delles, Joost P Schanstra, Harald Mischak, Antonia Vlahou
Mechanisms underlying the onset and progression of nephropathy in diabetic patients are not fully elucidated. Deregulation of proteolytic systems is a known path leading to disease manifestation, therefore we hypothesized that proteases aberrantly expressed in diabetic nephropathy (DN) may be involved in the generation of DN-associated peptides in urine. We compared urinary peptide profiles of DN patients (macroalbuminuric, n = 121) to diabetic patients with no evidence of DN (normoalbuminuric, n = 118)...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29120522/association-between-baseline-serum-hepcidin-levels-and-infection-in-kidney-transplant-recipients-potential-role-for-iron-overload
#6
Mario Fernández-Ruiz, Patricia Parra, Tamara Ruiz-Merlo, Francisco López-Medrano, Rafael San Juan, Natalia Polanco, Esther González, Amado Andrés, José María Aguado
BACKGROUND: The liver-synthesized peptide hepcidin is a key regulator of iron metabolism and correlates with total iron stores. We analyzed the association between pre-transplant hepcidin-25 levels and infection after kidney transplantation (KT). METHODS: Serum hepcidin-25 levels were measured at baseline by high-sensitivity ELISA in 91 patients undergoing KT at our institution between December 2011 and March 2013. The impact of this biomarker on the incidence of post-transplant infection (excluding lower urinary tract infection) during the first year was assessed by Cox regression...
November 9, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29116567/lc-srm-based-targeted-quantification-of-urinary-protein-biomarkers
#7
Yuqian Gao, Hui Wang, Carrie D Nicora, Tujin Shi, Richard D Smith, Tara K Sigdel, Minnie M Sarwal, David G Camp, Wei-Jun Qian
Liquid chromatography (LC)-selected reaction monitoring (SRM) is a powerful protein quantification technique in terms of sensitivity, reproducibility, and multiplexing capability. LC-SRM can accurately measure the concentrations of surrogate proteotypic peptides for targeted proteins in complex biological samples by using their stable heavy isotope-labeled counterparts as internal standards. Herein, we describe a step-by-step protocol of the application of LC-SRM to quantify candidate protein biomarkers in human urine...
November 8, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29106632/cost-effectiveness-of-screening-type-2-diabetes-patients-for-chronic-kidney-disease-progression-with-the-ckd273-urinary-peptide-classifier-as-compared-to-urinary-albumin-excretion
#8
Elena Critselis, Antonia Vlahou, Vianda S Stel, Rachael L Morton
Background: In type 2 diabetes mellitus (T2DM) patients, chronic kidney disease (CKD) progression may occur without detectable changes in urinary albumin excretion (UAE) rate. A new urinary peptide classifier (CKD273) has exhibited greater ability to detect CKD progression, however, its cost-effectiveness remains unknown. This study evaluated the cost-effectiveness of screening for CKD progression with the CKD273 classifier, as compared to UAE, in diabetic patients. Methods: A decision-analytic Markov model was developed to estimate costs and health outcomes [including overall survival and quality-adjusted life years (QALYs)] from a health system perspective for adopting a new annual screening strategy based on the CKD273 classifier as compared to annual UAE-based screening in a hypothetical cohort of T2DM patients...
July 3, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29105337/risk-of-coronary-artery-lesions-in-young-infants-with-kawasaki-disease-need-for-a-new-diagnostic-method
#9
Kaoru Satoh, Yoko Wakejima, Maki Gau, Tomoyuki Kiguchi, Nozomi Matsuda, Reiko Takasawa, Kei Takasawa, Masato Nishioka, Masayuki Shimohira
AIM: To examine clinical characteristics of Kawasaki disease (KD) in infants younger than 3 months of age and to develop a method for detecting KD in febrile infants. METHOD: In a case-control study, we retrospectively collected clinical and laboratory data from 24 KD infants younger than 3 months of age out of 410 KD patients. We then compared younger infants with both older patients and febrile infants with respiratory syncytial virus (RSV) infection and urinary tract infections (UTI)...
November 3, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29101807/6-shogaol-ameliorates-diabetic-nephropathy-through-anti-inflammatory-hyperlipidemic-anti-oxidative-activity-in-db-db-mice
#10
Yun Xu, Liwei Bai, Xuehui Chen, Yan Li, Yan Qin, Xiangyu Meng, Qinggui Zhang
The prevalence of type 2 diabetes mellitus has been increasing worldwide and more than two thirds of the patients may develop diabetic nephropathy (DN). However, the efficiency of existing approaches on DN progression is limited. 6-Shogaol (6-SG), a major dehydrated derivative of gingerols, possesses various biological properties. The present study was designed to evaluate the possible effects of 6-SG on DN in db/db mice and to investigate the mechanisms. We revealed that 6-SG reduced the levels of fasting blood glucose, serum insulin, C-peptide, glycosylated hemoglobin A1c, and systolic blood pressure...
November 1, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29084249/the-effect-of-sodium-glucose-cotransporter-2-sglt2-inhibition-on-the-urinary-proteome
#11
David Cherney, Bruce A Perkins, Yuliya Lytvyn, Hiddo Heerspink, María E Rodríguez-Ortiz, Harald Mischak
Treatment with empagliflozin, an inhibitor of the sodium/glucose cotransporter 2 (SGLT2), is associated with slower progression of diabetic kidney disease. In this analysis, we explored the hypothesis that empagliflozin may have an impact on urinary peptides associated with chronic kidney disease (CKD). In this post-hoc, exploratory analysis, we investigated urine samples obtained from 40 patients with uncomplicated type 1 diabetes (T1D) before and after treatment with empagliflozin for 8 weeks to for significant post-therapy changes in urinary peptides...
2017: PloS One
https://www.readbyqxmd.com/read/29076199/amino-acid-coordinated-self-assembly
#12
Xuehai Yan, Qianli Zou
Self-assembly of highly important biomolecules, such as proteins and peptides, has attracted tremendous interest in supramolecular construction of functional materials. However, as proteins and peptides are often immunogenic and their structures are complex, there is a strong demand to use amino acids as simpler building blocks. Still, mimicking the sophisticated structures and functions of natural materials by self-assembly of simpler and more basic units of biomolecules, such as amino acids, remains a formidable challenge...
October 26, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29059784/re-urinary-neurotrophic-peptides-in-postmenopausal-women-with-and-without-overactive-bladder
#13
Alan J Wein
No abstract text is available yet for this article.
November 2017: Journal of Urology
https://www.readbyqxmd.com/read/29050005/effect-of-salt-intake-on-serum-glucagon-like-peptide-1-levels-in-normotensive-salt-sensitive-subjects
#14
Wen-Ling Zheng, Chao Chu, Yong-Bo Lv, Yang Wang, Jia-Wen Hu, Qiong Ma, Yu Yan, Yu-Meng Cao, Xi-Long Dang, Ke-Ke Wang, Jian-Jun Mu
BACKGROUND/AIMS: Excess dietary salt is a critical risk factor of salt-sensitive hypertension. Glucagon-like peptide-1 (GLP-1) , a gut incretin hormone, conferring benefits for blood pressure by natriuresis and diuresis. We implemented a randomized trial to verify the effect of altered salt intake on serum GLP-1 level in human beings. METHODS: The 38 subjects were recruited from a rural community of Northern China. All subjects were sequentially maintained a baseline diet period for 3 days, a low-salt diet period for 7 days (3...
October 19, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29041943/human-umbilical-cord-wharton-jelly-cells-promote-extra-pancreatic-insulin-formation-and-repair-of-renal-damage-in-stz-induced-diabetic-mice
#15
Martin Maldonado, Tianhua Huang, Lujun Yang, Lan Xu, Lian Ma
BACKGROUND: We evaluated the therapeutic effect and fate of high doses of human umbilical cord Wharton jelly cells (hUCWJCs) after IP administration to streptozotocin (STZ)-induced diabetic mice. METHODS: Type 1 diabetes (T1D) was induced in Kunming mice via IP injection of STZ. hUCWJCs were labeled with 1,1'-dioctadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI). Diabetic animals with sustained hyperglycemia for at least 2 weeks were administered 1 × 10(7) Dil-hUCWJCs via intraperitoneal injection...
October 17, 2017: Cell Communication and Signaling: CCS
https://www.readbyqxmd.com/read/29041828/urine-protein-biomarkers-for-detection-of-cardiovascular-disease-and-their-use-for-the-clinic
#16
Sarah Röthlisberger, Johanna Pedroza-Diaz
Cardiovascular disease (CVD) is the leading noncommunicable disease and main cause of death worldwide. Traditionally, blood has been the sample of choice for biomarker discovery, however, urine has roused great interest in recent years as a source of biomarkers. Sample collection is simple, non-invasive, and there is the possibility of implementing minimal cost tests in primary care settings. Areas covered: In this review, we systematically searched PubMed for proteomic studies of CVD, with the criteria that urine was included as a biological sample...
October 27, 2017: Expert Review of Proteomics
https://www.readbyqxmd.com/read/29039148/untargeted-screening-of-urinary-peptides-using-offline-nano-liquid-chromatography-maldi-tof-tof-mass-spectrometry
#17
François-Ludovic Sauvage, Sébastien Passeron, Pierre Marquet
In renal transplantation, the discovery of early urine biomarkers of graft lesions would be useful in helping physicians to improve patient care and minimize the use of invasive techniques such as biopsies. Over the last years, high-resolution mass spectrometry has been used extensively for the search of biomarkers in various biological fluids. Here we describe a procedure based on reverse-phase nano-HPLC, offline plate spotting, and MALDI-TOF and TOF/TOF applied in our laboratory for the search of natural peptides in urine samples from renal transplant patients...
October 17, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29028400/label-free-study-of-cosmonaut-s-urinary-proteome-changes-after-long-duration-spaceflights
#18
A Brzhozovskiy, A Kononikhin, M Indeykina, LKh Pastushkova, I A Popov, E N Nikolaev, I M Larina
During the entire time that cosmonauts stay on board the international space station, different extreme space flight factors affect their bodies. In order to find out what physiological changes occur under the influence of spaceflight, different parameters of the human body before and after flights are monitored. Analysis of the urine proteome is one of the most perspective non-invasive methods of condition monitoring. The aim of the study was to perform a comparative semi-quantitative label-free urine proteome analysis of samples collected from 21 cosmonauts before and after long-duration spaceflight at the international space station...
August 2017: European Journal of Mass Spectrometry
https://www.readbyqxmd.com/read/29025985/safety-biodistribution-and-radiation-dosimetry-of-68-ga-ops202-68-ga-nodaga-jr11-in-patients-with-gastroenteropancreatic-neuroendocrine-tumors-a-prospective-phase-i-imaging-study
#19
Guillaume P Nicolas, Seval Beykan, Hakim Bouterfa, Jens Kaufmann, Andreas Bauman, Michael Lassmann, Jean Claude Reubi, Jean E F Rivier, Helmut R Maecke, Melpomeni Fani, Damian Wild
Preclinical and preliminary clinical evidence indicates that radiolabeled somatostatin receptor (sst) antagonists perform better than agonists in terms of detecting neuroendocrine tumors (NETs). This prospective phase I/II study is the first to evaluate an sst antagonist, (68)Ga-OPS202 ((68)Ga-NODAGA-JR11; NODAGA=1,4,7-triazacyclononane,1-glutaric acid-4,7-acetic acid and JR11=Cpa-c(DCys-Aph(Hor)-DAph(Cbm)-Lys-Thr-Cys)-DTyr-NH2)) for PET imaging. Here, we report results of the phase I component of the study...
October 12, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29021435/a-case-of-hyponatremia-with-loss-of-high-signal-intensity-in-the-posterior-pituitary-lobe-on-t1-weighted-magnetic-resonance-imaging
#20
Masayuki Kitagawa, Yoshihiro Yamanaka, Toru Adachi, Junitsu Ito, Kazutoshi Fukase, Ikuro Ohta, Tadashi Katagiri
Herein, we report on an 82-year-old woman who presented with anorexia. The patient had hyponatremia with preserved urinary osmotic pressure. T1-weighted magnetic resonance imaging (MRI) showed a lack of high signal intensity (SI) in the posterior pituitary lobe. Based on the patient's high levels of N-terminal prohormone of brain natriuretic peptide (NT-proBNP), heart failure was suspected. The heart failure may have caused arginine vasopressin (AVP) secretion. The depletion of AVP secretory granules may therefore cause the posterior pituitary gland to disappear on T1-weighted MRI...
October 11, 2017: Internal Medicine
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