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Alpha-1-acid glycoprotein

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https://www.readbyqxmd.com/read/28174536/exploring-the-pharmacokinetic-profile-of-remifentanil-in-mid-trimester-gestations-undergoing-fetal-intervention-procedures
#1
Judith A Smith, Roopali V Donepudi, Pedro S Argoti, Anita L Giezentanner, Ranu Jain, Noemi Boring, Elisa Garcia, Kenneth J Moise
Background: Indications for surgery during pregnancy have increased. Specifically fetal interventions have increased from conditions that were considered lethal like twin-twin transfusion syndrome and severe fetal anemia to non-lethal conditions like myelomeningocele. The optimal anesthetic agent for in utero surgery is yet to be determined. Success of the procedure is often dictated by the efficacy of the anesthetic to immobilize the fetus without over-sedating mom. Remifentanil is used as preferred agent due to its short half-life however pharmacokinetics in pregnancy is unknown...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28137820/pharmacokinetics-of-clindamycin-in-obese-and-non-obese-children
#2
Michael J Smith, Daniel Gonzalez, Jennifer L Goldman, Ram Yogev, Janice E Sullivan, Michael D Reed, Ravinder Anand, Karen Martz, Katherine Berezny, Daniel K Benjamin, P Brian Smith, Michael Cohen-Wolkowiez, Kevin Watt
Although obesity is prevalent among children in the United States, pharmacokinetic (PK) data in obese children are limited. Clindamycin is a commonly used antibiotic that may require dose adjustment in obese children due to its lipophilic properties. We performed a clindamycin population PK analysis using data from three separate trials. A total of 420 samples from 220 children, 76 of whom had a body mass index ≥ 95(th) percentile for age, were included in the analysis. As compared to other metrics, total body weight (TBW) was the most robust measure of body size...
January 30, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28131049/iron-biofortified-staple-food-crops-for-improving-iron-status-a-review-of-the-current-evidence
#3
REVIEW
Julia L Finkelstein, Jere D Haas, Saurabh Mehta
Iron deficiency is the most common micronutrient deficiency globally and represents a major threat to public health. Biofortification, the process of enhancing micronutrient content and bioavailability in staple crops, represents an exciting sustainable food-based strategy to combat and prevent iron deficiency, particularly in resource-limited settings. In this review, we examine the evidence to date of the efficacy of iron-biofortified staple food crops on improving iron status in at-risk populations, including rice, pearl millet, and beans...
January 25, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28108341/molecular-cloning-genomic-structure-polymorphism-analysis-and-recombinant-expression-of-a-%C3%AE-1-antitrypsin-like-gene-from-swamp-eel-monopterus-albus
#4
Wei Li, Quanhe Wang, Shaobin Li, Ao Jiang, Wenxiu Sun
Alpha-1-antitrypsin (AAT) is a highly polymorphic glycoprotein antiprotease, involved in the regulation of human immune response. Beyond some genomic characterization and a few protein characterizations, the function of teleost AAT remains uncertain. In this study we cloned an AAT-like gene from a swamp eel liver identifying four exons and three introns, and the full-length cDNA. The elucidated swamp eel AAT amino acid sequence showed high homology with known AATs from other teleosts. The swamp eel AAT was examined both in ten healthy tissues and in four bacterially-stimulated tissues resulting in up-regulation of swamp eel AAT at different times...
January 17, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28107809/plasma-protein-profiling-for-potential-biomarkers-in-the-early-diagnosis-of-alzheimer-s-disease
#5
Yuki Kitamura, Ryoko Usami, Sahoko Ichihara, Hirotaka Kida, Masayuki Satoh, Hidekazu Tomimoto, Mariko Murata, Shinji Oikawa
OBJECTIVES: Alzheimer's disease (AD) is the most common cause of dementia in elderly persons. Since the pathology of AD develops slowly from a preclinical or early phase into a fully expressed clinical syndrome, at the time of diagnosis the disease has been progressing for many years. To facilitate the early diagnosis of AD, we performed protein profiling of blood in patients with mild AD as defined by the Functional Assessment Staging (FAST) scale. METHODS: Plasma samples from mild AD patients and healthy controls were analyzed using two-dimensional differential gel electrophoresis (2D-DIGE) combined with matrix-assisted laser desorption ionization time-of-flight tandem mass spectrometry (MALDI-TOF/TOF/MS) followed by peptide mass fingerprinting...
March 2017: Neurological Research
https://www.readbyqxmd.com/read/28065798/monitoring-treatment-of-acute-kidney-injury-with-damage-biomarkers
#6
T J Pianta, L Succar, T Davidson, N A Buckley, Z H Endre
BACKGROUND: Damage biomarkers may identify mechanisms and sites of acute kidney injury (AKI). However, the utility of novel AKI biomarkers differs by context, and their utility for monitoring treatment of AKI is unknown. We hypothesized that selected AKI biomarkers would facilitate monitoring of mechanism-specific treatment. We examined this using a panel of biomarkers to monitor cisplatin-induced AKI treatment with alpha-lipoic acid (α-LA) that has previously been demonstrated to ameliorate cisplatin induced AKI...
February 15, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28055129/long-term-ethanol-exposure-decreases-the-endotoxin-induced-hepatic-acute-phase-response-in-rats
#7
Emilie Glavind, Hendrik Vilstrup, Henning Grønbaek, Stephen Hamilton-Dutoit, Nils Erik Magnusson, Karen Louise Thomsen
BACKGROUND: Long-term excess alcohol intake predisposes to infectious diseases. The hepatic acute phase response is a component of the innate immune system and is part of the first line of defense against invading pathogens, which may be compromised by alcohol. We aimed to investigate whether an induced acute phase response is impaired in long-term ethanol-fed rats. METHODS: For six weeks, rats were either fed a Lieber-DeCarli ethanol-containing (36% as calories) liquid diet ad libitum or calorically pair-fed...
January 5, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/27928891/early-deterioration-of-iron-status-among-a-cohort-of-bolivian-infants
#8
Rachel M Burke, Paulina A Rebolledo, Anna M Fabiszewski de Aceituno, Rita Revollo, Volga Iñiguez, Mitchel Klein, Carolyn Drews-Botsch, Juan S Leon, Parminder S Suchdev
Iron deficiency (ID) and iron deficiency anemia (IDA) are major contributors to infant and maternal morbidity worldwide. There is limited longitudinal data on iron status in young infants and on methods to adjust iron biomarkers for inflammation. We aimed to quantify the prevalence of inflammation-adjusted ID, anemia, and IDA over the first year in a cohort of Bolivian infants and their mothers. Healthy mother-infant dyads were recruited from two peri-urban hospitals. Infants provided three blood draws (2, 6-8, and 12-18 months; N = 160); mothers provided two blood draws (1 and 6-8 months postpartum [plus third anemia measurement at 12-18 months]; N = 250)...
December 7, 2016: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/27899485/circulating-microrna-122-is-associated-with-the-risk-of-new-onset-metabolic-syndrome-and-type-2-diabetes
#9
Peter Willeit, Philipp Skroblin, Alexander R Moschen, Xiaoke Yin, Dorothee Kaudewitz, Anna Zampetaki, Temo Barwari, Meredith Whitehead, Cristina M Ramírez, Leigh Goedeke, Noemi Rotllan, Enzo Bonora, Alun D Hughes, Peter Santer, Carlos Fernández-Hernando, Herbert Tilg, Johann Willeit, Stefan Kiechl, Manuel Mayr
MicroRNA-122 (miR-122) is abundant in the liver and involved in lipid homeostasis, but its relevance to the long-term risk of developing metabolic disorders is unknown. We therefore measured circulating miR-122 in the prospective population-based Bruneck Study (n = 810; survey year 1995). Circulating miR-122 was associated with prevalent insulin resistance, obesity, metabolic syndrome, type 2 diabetes, and an adverse lipid profile. Among 92 plasma proteins and 135 lipid subspecies quantified with mass spectrometry, it correlated inversely with zinc-α-2-glycoprotein and positively with afamin, complement factor H, VLDL-associated apolipoproteins, and lipid subspecies containing monounsaturated and saturated fatty acids...
February 2017: Diabetes
https://www.readbyqxmd.com/read/27896921/effect-of-iron-supplementation-during-lactation-on-maternal-iron-status-and-oxidative-stress-a-randomized-controlled-trial
#10
Josh M Jorgensen, Zhenyu Yang, Bo Lönnerdal, Caroline J Chantry, Kathryn G Dewey
We examined the effect of iron-containing prenatal vitamin-mineral supplements taken postpartum on biomarkers of iron status and oxidative stress. Lactating women (n = 114) were randomly assigned to consume daily one iron-free prenatal vitamin-mineral supplement plus either 27 mg of iron or placebo for approximately 3.5 months. The placebo group took the tablets between meals, while those given iron took the tablets either with (Fe-W) or between meals (Fe-B). Blood and urine samples were collected before and after the supplementation period to analyze hemoglobin (Hb), ferritin, hepcidin, transferrin saturation (TfSat), total plasma iron, and biomarkers of oxidative stress (isoprostane and 8-hydroxy-2-deoxyguanosine (8-OHdG)) and inflammation (C-reactive protein (CRP) and alpha-1-acid glycoprotein (AGP))...
November 29, 2016: Maternal & Child Nutrition
https://www.readbyqxmd.com/read/27875723/orosomucoid-as-prognosis-factor-associated-with-inflammation-in-acute-or-nutritional-status-in-chronic-heart-failure
#11
Rosa M Agra, Alfonso Varela-Román, Rocío González-Ferreiro, Juan E Viñuela, Ana Castro-Pais, Ángel Fernández-Trasancos, Esther Díaz-Rodríguez, Ezequiel Álvarez, Marcos C Carreira, Felipe F Casanueva, José R González-Juanatey, Sonia Eiras
BACKGROUND: Inflammation and nutritional state are involved in the pathogenesis of heart failure (HF). OBJECTIVE: To study the contribution of alpha-1-acid-glycoprotein (AGP) to these factors and its prognostic value in acute (AHF) or chronic HF (CHF). METHODS: The observational study has included 147 patients (mean age 70years, 62% men) admitted to a cardiology department for HF and followed-up for an average 326.6±140.8days. Blood AGP values were measured by Enzyme-Linked ImmunoSorbent Assay...
February 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27760464/characterization-of-site-specific-n-glycopeptide-isoforms-of-%C3%AE-1-acid-glycoprotein-from-an-interlaboratory-study-using-lc-ms-ms
#12
Ju Yeon Lee, Hyun Kyoung Lee, Gun Wook Park, Heeyoun Hwang, Hoi Keun Jeong, Ki Na Yun, Eun Sun Ji, Kwang Hoe Kim, Jun Seok Kim, Jong Won Kim, Sung Ho Yun, Chi-Won Choi, Seung Il Kim, Jong-Sun Lim, Seul-Ki Jeong, Young-Ki Paik, Soo-Youn Lee, Jisook Park, Su Yeon Kim, Young-Jin Choi, Yong-In Kim, Jawon Seo, Je-Yoel Cho, Myoung Jin Oh, Nari Seo, Hyun Joo An, Jin Young Kim, Jong Shin Yoo
Glycoprotein conformations are complex and heterogeneous. Currently, site-specific characterization of glycopeptides is a challenge. We sought to establish an efficient method of N-glycoprotein characterization using mass spectrometry (MS). Using alpha-1-acid glycoprotein (AGP) as a model N-glycoprotein, we identified its tryptic N-glycopeptides and examined the data reproducibility in seven laboratories running different LC-MS/MS platforms. We used three test samples and one blind sample to evaluate instrument performance with entire sample preparation workflow...
December 2, 2016: Journal of Proteome Research
https://www.readbyqxmd.com/read/27743359/the-use-of-multiple-reaction-monitoring-on-qqq-ms-for-the-analysis-of-protein-and-site-specific-glycosylation-patterns-in-serum
#13
L Renee Ruhaak
In recent years, high-throughput glycomics approaches have been developed and applied to either complete biofluids, cell lysates or tissues, or proteins isolated thereof. However, during such analyses the N-glycan are released from the protein backbone and therefore site- and protein-specific information is lost. There exists a need for high-throughput methods that allow quantification of site- and protein-specific glycosylation patterns from complex biological mixtures. We here describe the use of a multiple reaction monitoring mass spectrometry based method for the generation of glycopeptide profiles of the nine high abundance glycoproteins IgG, IgA, IgM, haptoglobin, alpha-1-antitrypsin, alpha-2-macroglobulin, alpha-1-acid glycoprotein, transferrin, and complement C3...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27741252/up-regulation-of-antioxidant-proteins-in-the-plasma-proteome-during-saturation-diving-unique-coincidence-under-hypobaric-hypoxia
#14
Hideharu Domoto, Keiichi Iwaya, Fumitaka Ikomi, Hirotaka Matsuo, Yutaka Tadano, Shigenori Fujii, Kazuyoshi Tachi, Yoshiyuki Itoh, Michiya Sato, Kimitoshi Inoue, Nariyoshi Shinomiya
Saturation diving (SD) is one of the safest techniques for tolerating hyperbaric conditions for long durations. However, the changes in the human plasma protein profile that occur during SD are unknown. To identify differential protein expression during or after SD, 65 blood samples from 15 healthy Japanese men trained in SD were analyzed by two-dimensional fluorescence difference gel electrophoresis. The expression of two proteins, one 32.4 kDa with an isoelectric point (pI) of 5.8 and the other 44.8 kDa with pI 4...
2016: PloS One
https://www.readbyqxmd.com/read/27711093/in-the-search-of-novel-urine-biomarkers-for-the-early-diagnosis-of-prostate-cancer-intracellular-or-secreted-proteins-as-the-target-group-where-and-how-to-search-for-possible-biomarkers-useful-in-the-everyday-clinical-practice
#15
Amalia Katafigioti, Ioannis Katafigiotis, Stavros Sfoungaristos, Christos Alamanis, Konstantinos Stravodimos, Ioannis Anastasiou, Eleni Roumelioti, Mordechai Duvdevani, Constantinos Constantinides
OBJECTIVE: To search which category of proteins can be detected in urine in order to examine subsequently its ability to improve our accuracy for the diagnosis of Prostate Cancer (PCa) as biomarkers in clinical useful fluids like urine and serum. Material and method(s): Urine samples of 127 patients were obtained after a vigorous transrectal prostatic massage to both lobes. The patients were considered to have a high risk for PCa according to their PSA (> 4 ng/ml), their digital rectal examination (DRE) (positive for suspicious prostatic lesions) or to their abnormal PSA kinetics (PSA velocity (PSAV > 0...
October 5, 2016: Archivio Italiano di Urologia, Andrologia
https://www.readbyqxmd.com/read/27664801/is-the-unbound-concentration-of-atazanavir-of-interest-in-therapeutic-drug-monitoring
#16
David Metsu, Patrick Seraissol, Pierre Delobel, Christel Cinq-Frais, Lise Cuzin, Jacques Izopet, Etienne Chatelut, Peggy Gandia
To date, therapeutic drug monitoring (TDM) is carried out with anti-retrovirals and is usually based on total concentrations (Ct). However, for some patients, TDM does not reflect efficacy or the avoidance of toxicity as is the case for atazanavir (ATV), a HIV protease inhibitor. As the unbound concentration (Cu) is the pharmacological active form, the aim of the study was to evaluate the value of Cu and the unbound fraction (fu, fu = Cu / Ct) for the TDM of ATV. The variability of Cu and the corresponding fu of ATV were explored in 43 patients treated with ATV for an average of 13...
September 24, 2016: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/27642072/genetic-engineering-of-cho-cells-for-viral-resistance-to-minute-virus-of-mice
#17
Joaquina X Mascarenhas, Nikolay Korokhov, Lisa Burger, Ademola Kassim, Jason Tuter, Daniel Miller, Trissa Borgschulte, Henry J George, Audrey Chang, David J Pintel, David Onions, Kevin J Kayser
Contamination by the parvovirus minute virus of mice (MVM) remains a challenge in Chinese hamster ovary (CHO) biopharmaceutical production processes. Although infrequent, infection of a bioreactor can be catastrophic for a manufacturer, can impact patient drug supply and safety, and can have regulatory implications. We evaluated engineering a CHO parental cell line (CHOZN(®) GS(-/-) ) to create a new host cell line that is resistant to MVM infection by modifying the major receptors used by the virus to enter cells...
September 19, 2016: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/27590021/international-validation-of-a-urinary-biomarker-panel-for-identification-of-active-lupus-nephritis-in-children
#18
Eve Mary Dorothy Smith, Andrea Lyn Jorgensen, Angela Midgley, Louise Oni, Beatrice Goilav, Chaim Putterman, Dawn Wahezi, Tamar Rubinstein, Diana Ekdawy, Rachel Corkhill, Caroline Ann Jones, Stephen David Marks, Paul Newland, Clarissa Pilkington, Kjell Tullus, Michael William Beresford
BACKGROUND: Conventional markers of juvenile-onset systemic lupus erythematosus (JSLE) disease activity fail to adequately identify lupus nephritis (LN). While individual novel urine biomarkers are good at detecting LN flares, biomarker panels may improve diagnostic accuracy. The aim of this study was to assess the performance of a biomarker panel to identify active LN in two international JSLE cohorts. METHODS: Novel urinary biomarkers, namely vascular cell adhesion molecule-1 (VCAM-1), monocyte chemoattractant protein 1 (MCP-1), lipocalin-like prostaglandin D synthase (LPGDS), transferrin (TF), ceruloplasmin, alpha-1-acid glycoprotein (AGP) and neutrophil gelatinase-associated lipocalin (NGAL), were quantified in a cross-sectional study that included participants of the UK JSLE Cohort Study (Cohort 1) and validated within the Einstein Lupus Cohort (Cohort 2)...
February 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/27583708/inflammation-and-biomarkers-of-micronutrient-status
#19
David I Thurnham, Christine A Northrop-Clewes
PURPOSE OF REVIEW: Investigations to discover new biomarkers of nutrition highlighted the fact that inflammation and infection were cross-cutting issues complicating interpretation of status. Collaborative groups of nutritionists, immunologists, clinicians and statisticians were set up to investigate the issues, and some are now reporting their findings. RECENT FINDINGS: Recent work on the vitamins A, D, E and C and the elements iron, zinc and selenium are reported in this review...
November 2016: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/27565792/analysis-of-fucosylation-in-liver-secreted-n-glycoproteins-from-human-hepatocellular-carcinoma-plasma-using-liquid-chromatography-with-tandem-mass-spectrometry
#20
Eun Sun Ji, Heeyoun Hwang, Gun Wook Park, Ju Yeon Lee, Hyun Kyoung Lee, Na Young Choi, Hoi Keun Jeong, Kwang Hoe Kim, Jin Young Kim, Seungho Lee, Yeong Hee Ahn, Jong Shin Yoo
Fucosylation of N-glycoproteins has been implicated in various diseases, such as hepatocellular carcinoma (HCC). However, few studies have performed site-specific analysis of fucosylation in liver-secreted proteins. In this study, we characterized the fucosylation patterns of liver-secreted proteins in HCC plasma using a workflow to identify site-specific N-glycoproteins, where characteristic B- and/or Y-ion series with and without fucose in collision-induced dissociation were used in tandem mass spectrometry...
November 2016: Analytical and Bioanalytical Chemistry
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