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https://www.readbyqxmd.com/read/29045960/pharmacokinetics-of-once-daily-prolonged-release-formulation-of-tacrolimus-in-children-with-primary-nephrotic-syndrome
#1
Y Han, S Q DU, H J Xiao, Y Zhou, J Ding, J J Ding, Y M Cui
OBJECTIVE: Tacrolimus prolonged-release(PR) formulation is a new once-daily formulation of the calcineurin inhibitor tacrolimus, which is currently used in adult liver or kidney transplant patients,and is also gradually widely used in children with nephrotic syndrome.The present study was undertaken to preliminarily investigate the pharmacokinetic characteristics of tacrolimus PR in pediatric nephrotic syndrome recipients. METHODS: This single-center open-label prospective study was performed in pediatric nephrotic syndrome recipients...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29044421/heterogeneous-hcg-and-hmg-commercial-preparations-result-in-different-intracellular-signalling-but-induce-a-similar-long-term-progesterone-response-in-vitro
#2
Laura Riccetti, Danièle Klett, Mohammed Akli Ayoub, Thomas Boulo, Elisa Pignatti, Simonetta Tagliavini, Manuela Varani, Tommaso Trenti, Alessia Nicoli, Francesco Capodanno, Giovanni Battista La Sala, Eric Reiter, Manuela Simoni, Livio Casarini
STUDY QUESTION: Are four urinary hCG/menotropin (hMG) and one recombinant preparation characterized by different molecular features and do they mediate specific intracellular signaling and steroidogenesis? SUMMARY ANSWER: hCG and hMG preparations have heterogeneous compositions and mediate preparation-specific cell signaling and early steroidogenesis, although similar progesterone plateau levels are achieved in 24 h-treated human primary granulosa cells in vitro...
October 1, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/29043995/clinical-research-of-homocysteine-high-sensitive-c-reactive-protein-and-d-dimer-in-patients-with-vascular-dementia
#3
Li Zhang, Na Liu, Jinying Zhang, Hui Zhang, Ying Zhang
Aim of the present research work was to study the relationship between the degree of dementia and the serum levels of homocysteine(Hcy), high-sensitive C-reactive protein(hs-CRP), D-Dimer and vascular dementia(VaD) of patients, and to investigate the mechanism of Hcy, hs-CRP and D-Dimer in the vascular dementia. Subjects were divided into normal group and VaD group. CRP and D-Dimer protein of each sample were detected by nephelometry method, and the serum Hcy level was detected by Fluorescent labeling immunoassay method...
July 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29043325/a-fully-integrated-microfluidic-platform-for-highly-sensitive-analysis-of-immunochemical-parameters
#4
Sascha Lutz, Eloisa Lopez-Calle, Pamela Espindola, Christoph Boehm, Thorsten Brueckner, Juergen Spinke, Moritz Marcinowski, Thomas Keller, Armin Tgetgel, Nicolas Herbert, Thomas Fischer, Erik Beiersdorf
We present a novel fully integrated centrifugal microfluidic platform for highly sensitive immunoassays in point-of-care settings. The platform consists of a disposable cartridge containing structures for assay processing, a porous membrane and all dried reagents required for the analysis. Additionally, a blister containing a washing buffer is connected to a new aliquoting structure enabling the serial aliquoting of washing buffer for repetitive bound-free separation steps. The proof-of-concept for two immunoassays is shown in the cartridge with each requiring only 30 μL of whole blood or plasma as the sample material...
October 18, 2017: Analyst
https://www.readbyqxmd.com/read/29042415/long-term-effects-of-weight-loss-exercise-on-biomarkers-associated-with-angiogenesis
#5
Catherine Duggan, Jean de Dieu Tapsoba, Ching-Yun Wang, Karen E Foster-Schubert, Anne McTiernan
BACKGROUND: We tested the effect of weight-loss on circulating levels of the angiogenic factors vascular endothelial growth factor (VEGF), and pigment epithelium-derived factor (PEDF) in postmenopausal overweight/obese women, 18 months after completing a year-long 4-arm randomized controlled trial of behavioral weight-loss and/or exercise vs. control (i.e., 30-months post-randomization). METHODS: 439 overweight/obese, postmenopausal women, 50-75 years, were randomized to: diet (goal: 10% weight-loss, N=118), exercise (225 min/week moderate-to-vigorous activity, N=117), diet+exercise (N=117), or control (N=87)...
October 17, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/29040985/serum-ifn-%C3%AE-3-levels-correlate-with-serum-hepatitis-c-virus-rna-levels-in-symptomatic-patients-with-acute-hepatitis-c
#6
Susumu Imoto, Soo Ryang Kim, Keisuke Amano, Etsuko Iio, Seitetsu Yoon, Shigeya Hirohata, Yoshihiko Yano, Toru Ishikawa, Shinji Katsushima, Toshiki Komeda, Toyokazu Fukunaga, Hobyung Chung, Hiroyuki Kokuryu, Yutaka Horie, Takashi Hatae, Aya Fujinami, Soo Ki Kim, Masatoshi Kudo, Yasuhito Tanaka
BACKGROUND: Recent genome-wide association studies demonstrated that 2 single nucleotide polymorphisms (SNPs), upstream of the interferon-λ (IFNL) 3 gene, are associated with the spontaneous clearance of hepatitis C virus (HCV) in symptomatic patients with acute hepatitis C (AHC). Although these 2 SNPs, rs8099917 and rs12979860, have established their significant roles in the innate immunity response to spontaneously clear HCV in patients with AHC, the detailed mechanisms of their roles remain largely unknown...
2017: Digestive Diseases
https://www.readbyqxmd.com/read/29040568/u-47700-a-not-so-new-opioid
#7
Timothy P Rohrig, Samuel A Miller, Tyson R Baird
U-47700 was developed by the Upjohn Co. in the 1970s as part of their search for a selective μ-opioid agonist with similar potency as morphine. U-47700 has re-emerged recently in the illicit drug market and is easily and cheaply obtained via the internet as well as on the street, many times falsely sold as another drug. Several fatalities from U-47700 have been reported in scientific literature, often in combination with other intoxicants. This case report describes the first death in south-central Kansas resulting solely from U-47700 intoxication: a 26-year-old white male found dead in his bedroom with apparent drug paraphernalia...
October 11, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/29039826/-endothelial-immune-activation-and-functional-state-in-patients-with-hypertensive-disease
#8
T V Ashcheulova, O N Kovalyova, N N Gerasimchuk
AIM: To investigate the nitric oxide (NO) system, the activity of endothelial NO synthase (e-NOS) and inducible NO synthase (i-NOS) in relation to the levels of tumor necrosis factor-α (TNF- α) and its soluble receptor type I (sTNFRI) depending on the grade of hypertensive disease (HD). SUBJECTS AND METHODS: A total of 317 patients, including 284 patients aged 30 to 65 years (mean age 54.7±0.58 years) with Grades 1-3 HD who had not previously received regular antihypertensive therapy and 33 apparently healthy individuals, were examined at Kharkov City Clinical Hospital Eleven...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/29039221/how-useful-is-urinary-free-cortisol-in-the-clinic
#9
Nisa Sheriff, Ann I McCormack
Measurement of 24-h urine-free cortisol is frequently employed as a first-line screening and disease-monitoring test in Cushing's syndrome (CS). The quest for 'cortisol specificity' has seen the emergence of mass spectrometry (MS) based assays, particularly liquid chromatography/tandem mass spectrometry. In contrast to traditional immunoassays, liquid chromatography/tandem mass spectrometry 'free cortisol' measurement is less susceptible to 'interference' from cortisol precursors and metabolites. However, detection of these conjugates is important in mild CS and therefore, missed by MS if cortisol alone is measured...
October 17, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29039202/nanoelectronic-platform-for-ultrasensitive-detection-of-protein-biomarkers-in-serum-using-dna-amplification
#10
Luye Mu, Ilia A Droujinine, Jieun Lee, Mathias Wipf, Paschall Davis, Chris Adams, Jennifer Hannant, Mark A Reed
Silicon nanowire field effect transistors (NWFETs) are low noise, low power, ultrasensitive biosensors that are highly amenable to integration. However, using NWFETs to achieve direct protein detection in physiological buffers such as blood serum remains difficult due to Debye screening, nonspecific binding, and stringent functionalization requirements. In this work, we performed an indirect sandwich immunoassay in serum combined with exponential DNA amplification and pH measurement by ultrasensitive NWFET sensors...
October 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29039100/analysis-of-complement-activation-by-nanoparticles
#11
Barry W Neun, Anna N Ilinskaya, Marina A Dobrovolskaia
The complement system is a group of proteins, which function in plasma to assist the innate immunity in rapid clearance of pathogens. The complement system also contributes to coordination of the adaptive immune response. Complement Activation Related Pseudo Allergy or CARPA is a life-threatening condition commonly reported with certain types of drugs and nanotechnology-based combination products. While CARPA symptoms are similar to that of anaphylaxis, the mechanism behind this pathology does not involve IgE and is mediated by the complement system...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29037955/single-molecule-arrays-for-ultra-sensitive-detection-of-rat-cytokines-in-serum
#12
Limor Cohen, Liangxia Xie, Mark E Xylas, David R Walt
Rats are used as animal models for many human diseases. Cytokines can serve as biomarkers indicative of these diseases or disease states. Techniques for measuring cytokine expression levels often do not provide the sensitivity needed to measure these biomarkers in biological fluids because the concentrations of many cytokines are below the detection limits of conventional methods. In this paper, we present ultra-sensitive digital immunoassays using Single Molecule Arrays (Simoa) for seven rat cytokines: TNF-α, IL-10, IL-17F, GM-CSF, IFN-γ, IL-4, and IL-1α...
October 13, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/29037214/thyroid-function-and-metabolic-syndrome-in-the-population-based-lifelines-cohort-study
#13
Bruce H R Wolffenbuttel, Hanneke J C M Wouters, Sandra N Slagter, Robert P van Waateringe, Anneke C Muller Kobold, Jana V van Vliet-Ostaptchouk, Thera P Links, Melanie M van der Klauw
BACKGROUND: The metabolic syndrome (MetS) is a combination of unfavourable health factors which includes abdominal obesity, dyslipidaemia, elevated blood pressure and impaired fasting glucose. Earlier studies have reported a relationship between thyroid function and some MetS components or suggested that serum free thyroxine (FT4) or free triiodothyronine (FT3) levels within the normal range were independently associated with insulin resistance. We assessed how thyroid function relates to MetS prevalence in a large population-based study...
October 16, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29037062/quantum-dot-based-lateral-flow-immunoassay-for-rapid-detection-of-rhein-using-specific-egg-yolk-antibodies
#14
Yue Zhang, Hui Kong, Xiaoman Liu, Jinjun Cheng, Meiling Zhang, Yongzhi Wang, Fang Lu, Huihua Qu, Yan Zhao
The lateral-flow immunoassays based on novel fluorescent labels have been receiving increasing attention. Here, we developed a rapid, quantitative, lateral-flow immunoassay for rapid and accurate detection of rhein (RHE). The competitive immunoassay used anti-RHE IgY (immunoglobulin of yolk) probe conjugated with QDs as reporter. Our results showed that the immunochromatographic strip can be applied for qualitative and quantitative analysis of RHE in samples. For quantitative analysis, the strips were scanned by a membrane-strip reader, and a detection curve (y = -0...
October 16, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/29037030/semisynthetic-bioluminescent-sensor-proteins-for-direct-detection-of-antibodies-and-small-molecules-in-solution
#15
Remco Arts, Susann Katrina Julie Ludwig, Benice C B van Gerven, Eva Magdalena Estirado, Lech-Gustav Milroy, Maarten Merkx
Single-step immunoassays that can be performed directly in solution are ideally suited for point-of-care diagnostics. Our group recently developed a new platform of bioluminescent sensor proteins (LUMABS; LUMinescent AntiBody Sensor) that allow antibody detection in blood plasma. Thus far, LUMABS has been limited to the detection of antibodies recognizing natural peptide epitopes. Here, we report the development of semisynthetic LUMABS sensors that recognize non-peptide epitopes. The non-natural amino acid para-azidophenylalanine was introduced at the position of the original antibody-recognition sites as a chemical handle to enable site-specific conjugation of synthetic epitope molecules coupled to a dibenzocylcooctyne moiety via strain-promoted click chemistry...
October 17, 2017: ACS Sensors
https://www.readbyqxmd.com/read/29036931/mass-spectrometric-studies-of-apolipoprotein-proteoforms-and-their-role-in-lipid-metabolism-and-type-2-diabetes
#16
REVIEW
Dobrin Nedelkov
Apolipoproteins function as structural components of lipoprotein particles, cofactors for enzymes, and ligands for cell-surface receptors. Most of the apoliporoteins exhibit proteoforms, arising from single nucleotide polymorphisms (SNPs) and post-translational modifications such as glycosylation, oxidation, and sequence truncations. Reviewed here are recent studies correlating apolipoproteins proteoforms with the specific clinical measures of lipid metabolism and cardiometabolic risk. Targeted mass spectrometric immunoassays toward apolipoproteins A-I, A-II, and C-III were applied on large cross-sectional and longitudinal clinical cohorts...
October 15, 2017: Proteomes
https://www.readbyqxmd.com/read/29035890/biocharacterization-of-heat-shock-protein-90-in-acetaminophen-treated-livers-without-conspicuous-drug-induced-liver-injury
#17
Ka Wu, Chao Guo, Min Su, Xinmou Wu, Rong Li
BACKGROUND/AIMS: Acetaminophen (APAP) refers to a medication used to manage pain and fever symptoms. Heat shock protein 90 (Hsp90) is to be expressed during various stresses, such as wound healing and tissue remodeling. Recently, it is discovered that Hsp90 is a potential modifier of cytogenesis. In comparison to clinical references of liver damage, this study was designed to assess the potential bioeffect of Hsp90 in APAP-treated livers without conspicuous drug induced liver injury (DILI)...
October 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29035877/association-of-maternal-serum-25-hydroxyvitamin-d-concentrations-with-risk-of-gestational-anemia
#18
Yingdi Yuan, Zhiyong Cai, YaoYao Dai, Qin Hong, Xingyun Wang, Lijun Zhu, Pengfei Xu, Lianghui You, Xing Wang, Chenbo Ji, Juan Wen, Xirong Guo
BACKGROUND/AIMS: Vitamin D deficiency has been shown to be associated with a greater prevalence of anemia in various healthy and diseased populations by a great deal of observational studies. However, less work has been done to explore this association in pregnant women. The aim of this study was to evaluate the association between maternal serum 25-hydroxyvitamin D [25(OH)D] concentrations and risk of gestational anemia in a large, nested case-control study. METHODS: The serum 25(OH)D concentrations was measured by enzyme immunoassay in 775 pregnant women affected with anemia and 1550 controls...
October 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29035835/nerve-growth-factor-beta-purified-from-bull-seminal-plasma-enhances-corpus-luteum-formation-and-conceptus-development-in-bos-taurus-cows
#19
Jamie L Stewart, Vitor R G Mercadante, Nicholas W Dias, Igor F Canisso, Peter Yau, Brian Imai, Fabio S Lima
The objective of the current study was to determine if Nerve Growth Factor-Beta (NGF), purified from bovine seminal plasma, would improve corpus luteum function and enhance conceptus development when administered to cows at artificial insemination. Angus cows (n = 60) were synchronized using a GnRH-prostaglandin and intravaginal progesterone protocol (7-day CO-Synch/CIDR) and randomly allocated to 1 of 2 treatment groups: (1) CONT- 12 mL PBS; or (2) NGF- 296 μg purified NGF in 12 mL PBS administered intramuscularly at insemination (day 0)...
October 7, 2017: Theriogenology
https://www.readbyqxmd.com/read/29035801/systematic-review-with-meta-analysis-performance-of-dried-blood-spots-for-hepatitis-c%C3%A2-antibodies-detection
#20
REVIEW
B A Muzembo, N C Mbendi, S F Nakayama
OBJECTIVES: Dried blood spots (DBS) specimens can be used for hepatitis C virus (HCV) infection screening in cases where serum specimens are difficult to obtain. However, uncertainties surround the sensitivity and specificity of DBS for HCV antibodies (anti-HCV) serology testing. We aimed to evaluate the accuracy of DBS use to screen for HCV infection. STUDY DESIGN: We carried out a systematic review and meta-analysis. METHODS: Medline and EMBASE databases were searched for articles published between 1989 and November 2016...
October 13, 2017: Public Health
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