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Biochemical reference values

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https://www.readbyqxmd.com/read/28926960/genetic-and-hormonal-regulation-of-chlorophyll-degradation-during-maturation-of-seeds-with-green-embryos
#1
REVIEW
Galina Smolikova, Elena Dolgikh, Maria Vikhnina, Andrej Frolov, Sergei Medvedev
The embryos of some angiosperms (usually referred to as chloroembryos) contain chlorophylls during the whole period of embryogenesis. Developing embryos have photochemically active chloroplasts and are able to produce assimilates, further converted in reserve biopolymers, whereas at the late steps of embryogenesis, seeds undergo dehydration, degradation of chlorophylls, transformation of chloroplast in storage plastids, and enter the dormancy period. However, in some seeds, the process of chlorophyll degradation remains incomplete...
September 16, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28924541/the-lrp1-gene-polymorphism-is-associated-with-increased-risk-of-metabolic-syndrome-prevalence-in-the-serbian-population
#2
N Vučinić, E Stokić, I Djan, D Obreht, N Veličković, K Stankov, M Djan
The determination of genetic background in metabolic syndrome (MetS) represents one of the necessary steps to prevent the disorder, thus reducing the cost of medical treatments and helping to design targeted therapy. The study explores the association between individual alleles of the LRP1 gene and the diagnosis of MetS to find correlation between the low-density lipoprotein receptor-related (LRP1) gene polymorphism and each individual anthropometric and biochemical parameter. The study included 93 males and females, aged from 19 to 65, divided into two groups...
June 30, 2017: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/28911127/nutritional-status-of-children-from-low-income-countries-arriving-in-spain
#3
Moncef Belhassen-García, Virginia Velasco-Tirado, Amparo Lopez-Bernus, Juan Luis Muñoz Bellido, Antonio Muro, Miguel Cordero, Javier Pardo-Lledias
Background: Nutritional problems, anaemia and infectious diseases are the main causes of morbidity and mortality in children and adolescents in tropical and subtropical areas. The main objective of this study was to determine the nutritional status in children from low-income countries who migrated to Spain and the value of the usual biochemistry markers of nutrition in these children, as well as to evaluate the nutritional status associated with imported infectious diseases. Moreover, we evaluated the association between anaemia and nutrition problems...
September 1, 2017: International Health
https://www.readbyqxmd.com/read/28878825/rna-sequence-data-normalization-through-in-silico-prediction-of-reference-genes-the-bacterial-response-to-dna-damage-as-case-study
#4
Bork A Berghoff, Torgny Karlsson, Thomas Källman, E Gerhart H Wagner, Manfred G Grabherr
BACKGROUND: Measuring how gene expression changes in the course of an experiment assesses how an organism responds on a molecular level. Sequencing of RNA molecules, and their subsequent quantification, aims to assess global gene expression changes on the RNA level (transcriptome). While advances in high-throughput RNA-sequencing (RNA-seq) technologies allow for inexpensive data generation, accurate post-processing and normalization across samples is required to eliminate any systematic noise introduced by the biochemical and/or technical processes...
2017: BioData Mining
https://www.readbyqxmd.com/read/28877925/the-impact-of-vitamin-d-status-on-hungry-bone-syndrome-after-surgery-for-primary-hyperparathyroidism
#5
Reto Martin Kaderli, Philipp Riss, Daniela Dunkler, Peter Pietschmann, Andreas Selberherr, Christian Scheuba, Bruno Niederle
OBJECTIVE: Prolonged hypocalcaemia but normal intact parathyroid hormone (iPTH) levels after surgery for primary hyperparathyroidism (PHPT) are referred to as "hungry bone syndrome" (HBS). The aim was to evaluate preoperative risk factors for HBS with a focus on the impact of 25-hydroxyvitamin D (25(OH)D) deficiency. DESIGN: Patients having undergone initial successful surgery for sporadic PHPT within 6 years were considered for retrospective analysis. METHODS: A total of 385 patients were evaluated, of whom 33 (8...
September 6, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28844464/non-invasive-assessment-of-liver-fibrosis-with-elastpq-comparison-with-transient-elastography-and-serologic-fibrosis-marker-tests-and-correlation-with-liver-pathology-results
#6
Jeong Eun Lee, Kyung Sook Shin, June-Sik Cho, Sun Kyoung You, Ji Hye Min, Kyung-Hee Kim, In Sang Song, Kwang Sik Cheon
We investigated the feasibility of using ultrasound shear wave elastography point quantification (ElastPQ) for liver fibrosis staging and compared it with other non-invasive tools with respect to efficacy in liver stiffness measurement. A total of 106 patients who underwent liver stiffness measurements, using ElastPQ and biochemical investigations, before parenchymal liver biopsy or surgery were included. Among these, 51 also underwent transient elastography (TE). Correlations of ElastPQ, TE and aspartate aminotransferase-to-platelet ratio index (APRI) with histopathological findings (as the reference standard) were determined using Spearman's correlation coefficient...
August 24, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28843148/therapeutic-effects-of-syzygium-mundagam-bark-methanol-extract-on-type-2-diabetic-complications-in-rats
#7
Rahul Chandran, Blassan P George, Heidi Abrahamse, Thangaraj Parimelazhagan
Plants are considered as one of the best sources of diabetic therapy. Being a reliable and sustainable medicinal hub, this study directs the use of Syzygium mundagam in exploring the antidiabetic property. Streptozotocin-Nicotinamide (STZ-NA) induced diabetic rats were treated with Syzygium mundagam bark methanol extract (SMBM). Based on acute toxicity study, the doses of the extract were fixed as 100 and 200mg/kg. Glibenclamide was used as reference drug. The blood glucose level and body weight of the rats were monitored for 28days...
August 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28821980/serum-calcitonin-reference-values-for-calcium-stimulation-tests-by-electrochemiluminescence-immunoassay-in-japanese-men-with-non-medullary-thyroid-carcinoma
#8
Minoru Kihara, Akira Miyauchi, Takumi Kudo, Mitsuyoshi Hirokawa, Akihiro Miya
PURPOSE: Calcitonin is the most sensitive tumor marker of medullary thyroid carcinoma (MTC) and a calcium stimulation test is used to improve this sensitivity. In Japan, the electrochemiluminescence immunoassay (ECLIA) is currently the only test performed to measure serum calcitonin. There is a gender difference in the reference value of serum calcitonin; however, a reference upper limit for use with ECLIA has been reported only for women, but not for men. METHODS: We conducted the calcium stimulation test using ECLIA in 21 men with non-medullary thyroid carcinoma (non-MTC), before and after total thyroidectomy...
August 18, 2017: Surgery Today
https://www.readbyqxmd.com/read/28803358/prospective-head-to-head-comparison-of-11-c-choline-pet-mr-and-11-c-choline-pet-ct-for-restaging-of-biochemical-recurrent-prostate-cancer
#9
Matthias Eiber, Isabel Rauscher, Michael Souvatzoglou, Tobias Maurer, Markus Schwaiger, Konstantin Holzapfel, Ambros J Beer
PURPOSE: Whole-body integrated (11)C-choline PET/MR might provide advantages compared to (11)C-choline PET/CT for restaging of prostate cancer (PC) due to the high soft-tissue contrast and the use of multiparametric MRI, especially for detection of local recurrence and bone metastases. MATERIALS AND METHODS: Ninety-four patients with recurrent PC underwent a single-injection/dual-imaging protocol with contrast-enhanced PET/CT followed by fully diagnostic PET/MR...
August 12, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28795384/contribution-of-hepatobiliary-scintigraphy-in-assessing-alpps-most-suited-timing
#10
Stéphanie Truant, Clio Baillet, Anne Claire Deshorgue, Mehdi El Amrani, Damien Huglo, François-René Pruvot
To reduce post-hepatectomy liver failure (PHLF), associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) has been recently developed for patients with a limited future remnant liver (FRL). Nevertheless, high morbi-mortality rates have been reported . The current study aimed to analyze the kinetics of FRL function in patients who were offered ALPPS. Serial SPECT (99 m)Tc-mebrofenin hepatobiliary scintigraphy (HBS) was performed in all patients before and after surgery as well as at inter-stage to quantitatively assess hepatic function [total liver (TL) and FRL]...
August 9, 2017: Updates in Surgery
https://www.readbyqxmd.com/read/28792967/aminophosphinates-against-helicobacter-pylori-ureolysis-biochemical-and-whole-cell-inhibition-characteristics
#11
Katarzyna Macegoniuk, Ewa Grela, Monika Biernat, Mateusz Psurski, Grażyna Gościniak, Anna Dziełak, Artur Mucha, Joanna Wietrzyk, Łukasz Berlicki, Agnieszka Grabowiecka
Urease is an important virulence factor from Helicobacter pylori that enables bacterial colonization of human gastric mucosa. Specific inhibition of urease activity can be regarded as a promising adjuvant strategy for eradication of this pathogen. A group of organophosphorus inhibitors of urease, namely, aminophosphinic acid and aminophosphonic acid derivatives, were evaluated in vitro against H. pylori urease. The kinetic characteristics of recombinant enzyme activity demonstrated a competitive reversible mode of inhibition with Ki values ranging from 0...
2017: PloS One
https://www.readbyqxmd.com/read/28790534/laboratory-and-genetic-biomarkers-associated-with-cerebral-blood-flow-velocity-in-hemoglobin-sc-disease
#12
Rayra Pereira Santiago, Camilo Vieira, Corynne Stephanie Ahouefa Adanho, Sanzio Silva Santana, Caroline Conceição Guarda, Camylla Vilas Boas Figueiredo, Luciana Magalhães Fiuza, Thassila Nogueira Pitanga, Junia Raquel Dutra Ferreira, Milena Magalhães Aleluia, Rodrigo Mota Oliveira, Dalila Luciola Zanette, Isa Menezes Lyra, Marilda Souza Goncalves
Reference values for cerebral blood flow velocity (CBFV) in hemoglobin SC disease (HbSC) have not been established. We aimed to investigate associations between laboratory and genetic biomarkers associated with CBFV in HbSC children. Sixty-eight HbSC children were included; CBFV was analyzed by transcranial Doppler, and the time-averaged maximum mean velocity (TAMMV) was estimated. Hematological, biochemical, immunological, and genetic analyses were performed. TAMMV was negatively correlated with red blood cell count (RBC) count, hemoglobin, hematocrit, and direct bilirubin (DB), yet positively correlated with monocytes and ferritin...
2017: Disease Markers
https://www.readbyqxmd.com/read/28771486/analysis-of-seminal-plasma-from-brown-bear-ursus-arctos-during-the-breeding-season-its-relationship-with-testosterone-levels
#13
L Anel-López, C Ortega-Ferrusola, C Martínez-Rodríguez, M Álvarez, S Borragán, C Chamorro, F J Peña, L Anel, P de Paz
Seminal plasma (SP) plays an important role in the motility, viability and maintenance of the fertilizing capacity of mammalian spermatozoa. This study is the first on brown bear (Ursus arctos) SP components, and has two main objectives: 1) to define the SP composition in bear ejaculate and 2) to identify variations in SP composition in relation to high and low levels of testosterone in serum during the breeding season. Forty-eight sperm samples from 30 sexually mature male brown bears (Ursus arctos) were obtained by electroejaculation, and their serum testosterone levels were assessed to sort the animals into 2 groups (high and low testosterone levels, threshold 5 ng/dl)...
2017: PloS One
https://www.readbyqxmd.com/read/28764845/impaired-calcium-sensing-distinguishes-primary-hyperparathyroidism-phpt-patients-with-low-bone-mineral-density
#14
Thomas J Weber, James Koh, Samantha M Thomas, Joyce A Hogue, Randall P Scheri, Sanziana A Roman, Julie A Sosa
CONTEXT: A subset of PHPT patients exhibit a more severe disease phenotype characterized by bone loss, fractures, recurrent nephrolithiasis, and other dysfunctions, but the underlying reasons for this disparity in clinical presentation remain unknown. OBJECTIVE: We sought to identify new mechanistic indices that could inform more personalized management of PHPT. DESIGN: Pre-, peri-, and postoperative data and demographic, clinical, and pathological information from patients undergoing parathyroidectomy for PHPT were collected...
September 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28764708/estimating-the-survival-advantage-based-on-telomere-length-and-serum-biomarkers-of-aging
#15
Yilin Zhao, Shijun Li, Hui Liu
BACKGROUND: This study aimed to establish a model that estimates the survival advantage at the molecular level based on telomere length and serum biomarkers of aging, to explore clinical significance. METHODS: The study consisted of 100 healthy subjects and 40 type 2 diabetes mellitus patients, 20-90 years of age. Saliva telomere relative length (LnTL) was measured by the quantitative real-time polymerase chain reaction and the serum biochemical parameters, including albumin (ALB), total proteins, total cholesterol, triglycerides, and some enzyme parameters were detected by a biochemical analyzer...
August 1, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28764004/the-gauss-eyring-model-a-new-thermodynamic-model-for-biochemical-and-microbial-inactivation-kinetics
#16
H C Mastwijk, R A H Timmermans, M A J S Van Boekel
A new primary model has been developed, using Gaussian distributed populations and Eyrings rate constant for the transition state, to describe inactivation kinetics of enzymes and micro-organisms subjected to heat and chemical treatment. The inactivation of both enzymes and micro-organisms could be associated with the irreversible transition to an inactivated state, as suggested by the Lumry-Eyring model for protein denaturation and enzyme inactivation. The characteristic inactivation model parameters, standard activation enthalpy and entropy, are directly related to the reference temperature and Z-value commonly used for kinetic analysis in food microbiology...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28749296/bridging-gaps-between-zoo-and-wildlife-medicine-establishing-reference-intervals-for-free-ranging-african-lions-panthera-leo
#17
Heather M Broughton, Danny Govender, Purvance Shikwambana, Patrick Chappell, Anna Jolles
The International Species Information System has set forth an extensive database of reference intervals for zoologic species, allowing veterinarians and game park officials to distinguish normal health parameters from underlying disease processes in captive wildlife. However, several recent studies comparing reference values from captive and free-ranging animals have found significant variation between populations, necessitating the development of separate reference intervals in free-ranging wildlife to aid in the interpretation of health data...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749287/hematologic-and-plasma-biochemical-values-of-cinereous-vulture-aegypius-monachus
#18
Seong H Seok, Dong H Jeong, Se J Park, Seung Y Lee, Hee C Lee, Seong C Yeon
The aim of this study was to establish hematologic and plasma biochemical reference intervals for clinically healthy cinereous vultures ( Aegypius monachus ) in a rehabilitation setting before release. Animals used in this study were cinereous vultures hospitalized in a wildlife center located in the province of Gyeongsangnam-do, the Republic of Korea. Blood samples were collected from 31 cinereous vultures before their release between 2011 and 2014 at the Gyeongnam Wildlife Center. Complete blood count and plasma biochemical analyses were performed within 2 hr of the blood sampling...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749274/evaluation-of-the-i-stat-portable-clinical-analyzer-for-measurement-of-ionized-calcium-and-selected-blood-chemistry-values-in-asian-elephants-elephas-maximus
#19
Danielle K Tarbert, Erica Behling-Kelly, Heather Priest, Sara Childs-Sanford
Thei-STAT® portable clinical analyzer (PCA) provides patient-side results for hematologic, biochemical, and blood gas values when immediate results are desired. This analyzer is commonly used in nondomestic animals; however, validation of this method in comparison with traditional benchtop methods should be performed for each species. In this study, the i-STAT PCA was compared with the Radiometer ABL 800 Flex benchtop analyzer using 24 heparinized whole blood samples obtained from healthy E. maximus . In addition, the effect of sample storage was evaluated on the i-STAT PCA...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28739581/a-novel-prognostic-model-for-transplant-free-survival-in-primary-sclerosing-cholangitis
#20
Elisabeth M de Vries, Junfeng Wang, Kate D Williamson, Mariska M Leeflang, Kirsten Boonstra, Rinse K Weersma, Ulrich Beuers, Roger W Chapman, Ronald B Geskus, Cyriel Y Ponsioen
OBJECTIVE: Most prognostic models for primary sclerosing cholangitis (PSC) are based on patients referred to tertiary care and may not be applicable for the majority of patients with PSC. The aim of this study was to construct and externally validate a novel, broadly applicable prognostic model for transplant-free survival in PSC, based on a large, predominantly population-based cohort using readily available variables. DESIGN: The derivation cohort consisted of 692 patients with PSC from the Netherlands, the validation cohort of 264 patients with PSC from the UK...
July 24, 2017: Gut
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