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https://www.readbyqxmd.com/read/28933159/hemoglobin-adducts-and-urinary-metabolites-of-arylamines-and-nitroarenes
#1
Gabriele Sabbioni
Arylamines and nitroarenes are intermediates in the production of pharmaceuticals, dyes, pesticides, and plastics and are important environmental and occupational pollutants. N-Hydroxyarylamines are the toxic common intermediates of arylamines and nitroarenes. N-Hydroxyarylamines and their derivatives can form adducts with hemoglobin (Hb-adducts), albumin, DNA, and tissue proteins in a dose-dependent manner. Most of the arylamine Hb-adducts are labile and undergo hydrolysis in vitro, by mild acid or base, to form the arylamines...
September 21, 2017: Chemical Research in Toxicology
https://www.readbyqxmd.com/read/28931780/association-between-severity-of-obstructive-sleep-apnea-and-glycated-hemoglobin-level-in-japanese-individuals-with-and-without-diabetes
#2
Hideaki Kurosawa, Yoshifumi Saisho, Koichi Fukunaga, Mizuha Haraguchi, Wakako Yamasawa, Isao Kurihara, Tomoko Betsuyaku, Hiroshi Itoh
Aim of this study was to examine the association between the severity of obstructive sleep apnea (OSA) and dysglycemia in Japanese individuals with and without type 2 diabetes (T2DM). We enrolled 115 individuals diagnosed with OSA with an apnea hypopnea-index (AHI) ≥ 20 in whom continuous positive airway pressure (CPAP) therapy was introduced (N = 115, 44 with T2DM, age 62 ± 11 years, BMI 27.0 ± 4.4 kg/m(2) and AHI median 36.1; interquartile range 27.2-48.1). During admission, the severity of OSA was evaluated by polysomnography, and its association with glycated hemoglobin (HbA1c) level was examined...
September 20, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28931607/direct-observation-of-conformational-population-shifts-in-crystalline-human-hemoglobin
#3
Naoya Shibayama, Mio Ohki, Jeremy Rh Tame, Sam-Yong Park
Although X-ray crystallography is the most commonly used technique for studying the molecular structure of proteins, it is not generally able to monitor the dynamic changes or global domain motions that often underlie allostery. These motions often prevent crystal growth or reduce crystal order. We have recently discovered a crystal form of human hemoglobin that contains three protein molecules allowed to express a full range of quaternary structures, while maintaining strong X-ray diffraction. Here we use this crystal form to investigate the effects of two allosteric effectors, phosphate and bezafibrate, by tracking the structures and functions of the three hemoglobin molecules following the addition of each effector...
September 20, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28930495/a-multicenter-real-life-study-on-the-effect-of-flash-glucose-monitoring-on-glycemic-control-in-patients-with-type-1-and-type-2-diabetes
#4
Ranjit Mohan Anjana, Jothydev Kesavadev, Deshpande Neeta, Mangesh Tiwaskar, Rajendra Pradeepa, Saravanan Jebarani, Suresh Thangamani, Nadiminty Ganapathi Sastry, Srivastava Brijendra Kumar, Muthu Ramu, Pokal Prasanna Kumar Gupta, Jayaprakash Vignesh, Sundramoorthy Chandru, Sengottuvel Kayalvizhi, Padoor Sethuraman Jagdish, Subash Chandra Bose Uthra, Munawar Lovelena, Sah Jyoti, Sengodan Suguna Priya, Alagarsamy Kannan, Viswanathan Mohan, Ranjit Unnikrishnan
AIM: To assess the efficacy of ambulatory glucose profiling (AGP) generated by FreeStyle LibrePro(™) flash glucose monitoring (FCGM) on glycemic control in patients with uncontrolled type 1 diabetes (T1D) and type 2 diabetes (T2D). METHODS: Clinical and biochemical data were obtained from 5072 patients with diabetes who had an A1c ≥7% (2536 who had been initiated on FCGM-based AGP between March 2015 and October 2016 [cases] and 2536 age-, gender-, A1c-, site- and time-matched controls who were not initiated on AGP) across seven diabetes clinics in India...
September 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28923627/associations-among-cardio-ankle-vascular-index-carotid-intima-media-thickness-and-fibroblast-growth-factor-21-levels-in-kidney-transplant-patients
#5
T Trakarnvanich, S Prommool, S Kurathong, T Teepprasan, Y Wang
BACKGROUND: Cardiovascular disease is the major cause of death in patients with chronic kidney disease, even after renal transplantation. Cardio-ankle vascular index (CAVI) provides an indicator of arterial stiffness, whereas fibroblast growth factor-21 (FGF-21) levels may provide a biomarker for atherosclerotic disease. We investigated the association between CAVI and FGF-21 and their relationships to carotid intima-media thickness (IMT) and other cardiovascular risk factors. METHODS: This study included 90 renal transplant patients...
October 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28923291/use-of-prohibited-medication-a-potentially-overlooked-confounder-in-clinical-trials-omarigliptin-once-weekly-dpp-4-inhibitor-monotherapy-trial-in-18-to-45-year-olds
#6
Ira Gantz, Liubov Sokolova, Lokesh Jain, Carol Iredale, Edward A O'Neill, Ziwen Wei, Raymond Lam, Shailaja Suryawanshi, Keith D Kaufman, Samuel S Engel, Eseng Lai
PURPOSE: The objective of this clinical trial was to assess the efficacy and safety of omarigliptin monotherapy in young adult patients with type 2 diabetes mellitus (T2DM). Unexpected efficacy results in this trial led to a series of investigations that identified the use of prohibited medication by a substantial number of trial patients. METHODS: Patients with T2DM who were ≥18 to <45 years of age and either drug-naive or not on an antihyperglycemic agent for ≥12 weeks with inadequate glycemic control were randomized in a double-blind manner to receive omarigliptin 25 mg once weekly (n = 102) or placebo once weekly (n = 101) for 24 weeks...
September 15, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28918546/systemic-effects-of-repeated-intraocular-dexamethasone-intravitreal-implant-in-diabetic-patients-a-retrospective-study
#7
Alicia Valverde-Megías, Pilar Cifuentes-Canorea, Jorge Ruiz-Medrano, Pablo Peña-García, Alicia Megías-Fresno, Juan Donate-López, Julián García-Feijoo
INTRODUCTION: The objective of this study is to evaluate the influence of repeated intraocular dexamethasone implant (Ozurdex) injections on metabolic control in type 2 diabetic patients. METHODS: Retrospective study of 165 type 2 diabetic patients starting Ozurdex treatment who received no less than three consecutive injections. Glycated hemoglobin (HbA1c), serum creatinine, total cholesterol, high-density lipoprotein (HDL) cholesterol, low-density lipoprotein (LDL) cholesterol, and triglycerides (TGs) were evaluated during 15 months of follow-up after Ozurdex treatment onset...
September 16, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28917805/hemoglobin-becomes-electroactive-upon-interaction-with-surface-protected-au-nanoparticles
#8
Rafael Del Caño, Lucia Mateus, Guadalupe Sánchez-Obrero, José Manuel Sevilla, Rafael Madueño, Manuel Blázquez, Teresa Pineda
In this work, we report on the electrochemical behavior of bioconjugates prepared with gold nanoparticles (AuNP) capped with three different molecular layers (citrate anions, 6-mercaptopurine and ω-mercaptoundecanoic acid) and the protein hemoglobin (Hb). Freshly formed bioconjugates are deposited on a glassy carbon electrode and assayed for electroactivity. A pair of redox peaks with formal potential at -0.37V is obtained, in contrast with the free Hb protein that is inactive on the glassy carbon substrate...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28915959/measuring-salivary-blood-a-potential-in-vivo-assay-to-quantify-platelet-transfusion-efficacy
#9
Thomas J Gniadek, Shelley Pulkrabek, Claudia S Cohn
Salivary blood is known to increase in patients with intraoral mucosal bleeding. Mucosal bleeding is a frequent sequelae of thrombocytopenia, which is typically managed with platelet transfusion. Within the past few years, multiple different types of platelet products have become available, each with potential differences in efficacy. Typically, platelet transfusion efficacy is demonstrated by the increase in platelet count after transfusion. However this approach is complicated by the fact that activated platelets tend to produce lower post-transfusion platelet counts, but may be more efficacious in a bleeding patient...
September 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28913922/a-clinically-meaningful-fetal-hemoglobin-threshold-for-children-with-sickle-cell-anemia-during-hydroxyurea-therapy
#10
Jeremie H Estepp, Matthew P Smeltzer, Guolian Kang, Chen Li, Winfred C Wang, Christina Abrams, Banu Aygun, Russell E Ware, Kerri Nottage, Jane S Hankins
Hydroxyurea has proven clinical benefits and is recommended to be offered to all children with sickle cell anemia (SCA), but the optimal dosing regimen remains controversial. Induction of red blood cell fetal hemoglobin (HbF) by hydroxyurea appears to be dose-dependent. However, it is unknown whether maximizing HbF% improves clinical outcomes. HUSTLE (NCT00305175) is a prospective observational study with a primary goal of describing the long-term clinical effects of hydroxyurea escalated to maximal tolerated dose (MTD) in children with SCA...
September 14, 2017: American Journal of Hematology
https://www.readbyqxmd.com/read/28912725/enhanced-strength-and-sprint-levels-and-changes-in-blood-parameters-during-a-complete-athletics-season-in-800-m-high-level-athletes
#11
Beatriz Bachero-Mena, Fernando Pareja-Blanco, Juan J González-Badillo
The purpose of this study was to analyze changes in sprint, strength, hematological, and hormonal parameters in high-level 800 m athletes during a complete athletics season. Thirteen male athletes of national and international level in 800 m (personal best ranging from 1:43 to 1:58 min:ss) participated in this study. A total of 5 tests were conducted during a complete athletics season. Athletes performed sprint tests (20 and 200 m), countermovement jump (CMJ), jump squat (JS), and full squat (SQ) tests. Blood samples (red and white blood profile) and hormones were collected in test 1 (T1), test 3 (T3), and test 5 (T5)...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28911146/anemia-in-patients-with-resistance-to-thyroid-hormone-%C3%AE-a-role-for-thyroid-hormone-receptor-%C3%AE-in-human-erythropoiesis
#12
Anja L M van Gucht, Marcel E Meima, Carla Moran, Maura Agostini, Anna Tylki-Szymanska, Malgorzata-Walasek Krajewska, Krystyna Chrzanowska, Alexandra Efthymiadou, Dionisios Chrysis, Korcan Demir, W Edward Visser, Theo J Visser, Krishna Chatterjee, Thamar B van Dijk, Robin P Peeters
Context: Patients with resistance to thyroid hormone (TH) α (RTHα) are characterized by growth retardation, macrocephaly, constipation, and abnormal thyroid function tests. In addition, almost all RTHα patients have mild anemia, the pathogenesis of which is unknown. Animal studies suggest an important role for TH and TH receptor (TR)α in erythropoiesis. Objective: To investigate whether a defect in TRα affects the maturation of red blood cells in RTHα patients...
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28906476/ultra-sensitive-nt-probnp-quantification-for-early-detection-of-risk-factors-leading-to-heart-failure
#13
Keum-Soo Song, Satish Balasaheb Nimse, Mukesh Digambar Sonawane, Shrikant Dashrath Warkad, Taisun Kim
Cardiovascular diseases such as acute myocardial infarction and heart failure accounted for the death of 17.5 million people (31% of all global deaths) in 2015. Monitoring the level of circulating N-terminal proBNP (NT-proBNP) is crucial for the detection of people at risk of heart failure. In this article, we describe a novel ultra-sensitive NT-proBNP test (us-NT-proBNP) that allows the quantification of circulating NT-proBNP in 30 min at 25 °C in the linear detection range of 7.0-600 pg/mL. It is a first report on the application of a fluorescence bead labeled detection antibody, DNA-guided detection method, and glass fiber membrane platform for the quantification of NT-proBNP in clinical samples...
September 14, 2017: Sensors
https://www.readbyqxmd.com/read/28905721/using-a-cageside-device-for-testing-glycosylated-hemoglobin-in-cynomolgus-macaques-macaca-fascicularis
#14
Jessica M Johnston, Jolaine M Wilson, Abigail L Smith, John T Farrar, Michael J Kallan, Christin L Veeder
Nonhuman primates naturally develop type 2 diabetes mellitus and exhibit clinical features that are similar to those observed in humans, including obesity, insulin resistance, dyslipidemia, and pancreatic pathology. The glycosylated hemoglobin (HbA1C) test is the primary test used for diabetes management in humans because it reflects the average blood glucose levels over the previous 3 mo. The HbA1C results are a better predictor of potential risk of complications than are single or episodic measures of glucose levels...
January 1, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28902040/long-term-rifaximin-therapy-as-a-primary-prevention-of-hepatorenal-syndrome
#15
El-Sayed Ibrahim, Ayman Alsebaey, Hassan Zaghla, Sabry Moawad Abdelmageed, Khalid Gameel, Eman Abdelsameea
BACKGROUND: Hepatorenal syndrome (HRS) is a severe complication of liver cirrhosis, with poor survival. Rifaximin is a gut-selective broad-spectrum antibiotic. AIM: The aim of this study was to evaluate the role of rifaximin as a primary prevention of HRS. PATIENTS AND METHODS: Eighty patients with liver cirrhosis and ascites were enrolled. They were randomized into two groups: control (n=40) and rifaximin group (n=40). Baseline liver function tests, renal function tests, complete blood count, international normalized ratio, urine analysis, and abdominal ultrasonography were carried out...
September 8, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28899471/-a-report-of-two-children-with-fever-headache-and-purpura
#16
Hong-Bo Xu, Mei Tan, Jian Lu, Mao-Qiang Tian, Yan Chen
In this study, two school-aged children had an acute onset in spring and had the manifestations of fever, headache, vomiting, disturbance of consciousness, purpura and ecchymosis, and positive meningeal irritation sign. There were increases in peripheral white blood cells and neutrophils, but reductions in the hemoglobin level and platelet count in the two children. They had a significant increase in C-reactive protein. There were hundreds or thousands of white blood cells in the cerebrospinal fluid, mainly neutrophils...
September 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28895235/infrared-assisted-extraction-and-hplc-analysis-of-prunus-armeniaca-l-pomace-and-detoxified-kernel-and-their-antidiabetic-effects
#17
Karim Raafat, Nada El-Darra, Fatima A Saleh, Hiba N Rajha, Richard G Maroun, Nicolas Louka
INTRODUCTION: Prunus armeniaca L. (P. armeniaca) is one of the medicinal plants with a high safety-profile. OBJECTIVES: The aim of this work was to make an infrared-assisted extraction (IR-AE) of P. armeniaca fruit (pomace) and kernel, and analyse them using reverse phase high-performance liquid chromatography (RP-HPLC) aided method. METHODS: IR-AE is a novel-technique aimed at increasing the extraction-efficiency. The antidiabetic-potentials of the P...
September 12, 2017: Phytochemical Analysis: PCA
https://www.readbyqxmd.com/read/28885369/influencing-factors-of-glycemic-variability-in-hospitalized-type-2-diabetes-patients-with-insulin-therapy-a-strobe-compliant-article
#18
Ya Huang, Chunni Heng, Jing Wei, Xiaorui Jing, Xiaoguang Wang, Guohong Zhao, Junfeng Hou, Qingquan Liu, Kai Jiao
Previous studies have shown that glucose fluctuation is closely related to oxidative stress and diabetic complications. However, only few studies have evaluated the influencing factors of glycemic variability (GV) in type 2 diabetes (T2D) patients so far.This was a cross-sectional study design. A total of 366 cases of hospitalized patients with T2D using insulin therapy, whom received continuous glucose monitoring from January 2014 to December 2016, were enrolled for this study. The evaluation variables of GV included standard deviation of blood glucose, coefficient of variation (CV%), mean amplitude of glycemic excursion, and absolute means of daily differences...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28885345/long-term-effectiveness-of-the-diabetes-conversation-map-program-a-prepost-education-intervention-study-among-type-2-diabetic-patients-in-taiwan
#19
Jui-Yu Hung, Pin-Fan Chen, Hanoch Livneh, Yi-Yu Chen, How-Ran Guo, Tzung-Yi Tsai
Health education is compulsory for patients with chronic and life-threatening disease, especially for those with diabetes mellitus (DM). This study aimed to examine the long-term effectiveness of the Diabetes Conversation Map Program (DCMP) among DM patients in Taiwan.A quasi-experimental research design using convenience sampling and nonrandom group assignment was applied to recruit 95 type 2 diabetic subjects from a hospital in Taiwan. In addition to routine care, the experiment group (n = 49) received 7 sessions of DCMP that delivered over 2 months, while the control group (n = 46) received only routine care during the same period...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28885215/hyperspectral-imaging-as-a-novel-diagnostic-tool-in-microcirculation-of-wounds
#20
Georg Daeschlein, Inga Langner, Thomas Wild, Sebastian von Podewils, Claudia Sicher, Thomas Kiefer, Michael Jünger
Monitoring of perfusion is a cornerstone in surgery, phlebology and basic science to proof wound healing by interventions. In chronic wound management it is of utmost importance to realize and parametrize wound bed perfusion to verify actual, and plan further treatment by noninvasive diagnostics. Up to now monitoring is based on visual inspection of wounds as conventionally practiced over more than decades. The main problems of visual inspection are the lack of standardization and comparability because of interindividual variations...
September 4, 2017: Clinical Hemorheology and Microcirculation
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