keyword
MENU ▼
Read by QxMD icon Read
search

Biochemical

keyword
https://www.readbyqxmd.com/read/28222580/acute-and-delayed-responses-of-steroidal-hormones-blood-lactate-and-biomarkers-of-muscle-damage-after-a-resistance-training-session-time-of-day-effects
#1
Achraf Ammar, Hamdi Chtourou, Mouna Turki, Omar Hammouda, Ahmed Chaari, Mariem Boudaya, Tarak Driss, Fatma Ayedi, Nizar Souissi
BACKGROUND: The present study aimed to investigate the effect of time-of-days (TOD) on some biochemical and hormonal responses after resistance training sessions. METHODS: Ten trained subjects (22±2 years) performed, in randomized order, three resistance-training-sessions at 07h:00, 13h:00 and 17h:00. Each training-session included six upper and lower body resistance exercises with 3×10 repetitions. Blood lactate (Lac), creatine kinase (CK), lactate dehydrogenase (LDH), cortisol (C) and testosterone (T) were collected at rest, 3min and 48h after each-session...
February 21, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28222414/urinary-steroid-metabolites-in-a-case-of-florid-ectopic-cushing-s-syndrome-and-clinical-correlations
#2
Angelos Kyriacou, Karolina G Stepien, Basil Issa
A 51-year old woman was admitted with multiple cerebral, pulmonary and intra-abdominal abscesses. The combination of apparent immunosuppression, obesity, diabetes mellitus, hypertension, hypokalaemia, osteoporotic fractures and bilateral shoulder avascular necrosis led to a clinical diagnosis of Cushing's syndrome (CS). This was biochemically confirmed as follows: midnight serum cortisol 4275 nmol/L (60-250), non-suppressed overnight dexamethasone suppression test, raised salivary cortisol 716 nmol/L (5-46) and ACTH 639 ng/L (0-46)...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222413/a-new-tr%C3%AE-mutation-in-resistance-to-thyroid-hormone-syndrome
#3
Corina Neamţu, Claudiu Ţupea, Diana Păun, Anca Hoisescu, Adina Ghemigian, Samuel Refetoff, Chutintorn Sriphrapradang
Thyroid hormones (TH) exert their actions by binding nuclear receptors alpha (TRα1) and beta (TRß1 and TRß2). Resistance to thyroid hormone (RTH) is a clinical syndrome with various clinical manifestations, its hallmark being decreased tissue sensitivity to the action of thyroid hormones. We report the case of a family harbouring a novel TRß mutation. Sequencing of the TRβ gene revealed a single nucleotide substitution-C to G in codon 340: glutamine was replaced by glutamic acid. The clinical picture and biochemical and hormonal panel showed significant differences within the family, despite their sharing the same mutation...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222412/low-risk-papillary-thyroid-carcinoma-patients-who-underwent-near-total-thyroidectomy-without-prophylactic-central-compartment-lymph-node-dissection-and-were-ablated-with-low-dose-50mci-rai-had-excellent-10-year-prognosis
#4
Marina Michalaki, Panagiotis Bountouris, Nikolaos D Roupas, Anastasia Theodoropoulou, Niki Agalianou, Theodoros Alexandrides, Kostas Markou
BACKGROUND: The current trend in the management of low risk differentiated thyroid carcinoma is to follow less aggressive strategies. OBJECTIVE: To assess the long-term morbidity and mortality outcomes of low-risk papillary thyroid carcinoma (PTC) patients undergoing minimal intervention. DESIGN: We retrospectively analyzed 137 patients with low-risk PTC (stage I: n=77; stage II: n=60). Of these patients, 107 (Group 1) had macro-PTC and underwent near-total thyroidectomy and received postoperatively 50mCi RAI...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222408/severe-osteoporosis-with-multiple-spontaneous-vertebral-fractures-in-a-young-male-carrying-triple-polymorphisms-in-the-vitamin-d-receptor-collagen-type-1-and-low-density-lipoprotein-receptor-related-peptide-5-genes
#5
Maria P Yavropoulou, Panagoulia Kollia, Dimitris Chatzidimitriou, Stavroula Samara, Lemonia Skoura, John G Yovos
: Osteoporosis is a common disease with a strong genetic component. Several studies have reported the vitamin D receptor (VDR), collagen type I (COL1A1), and LDL receptor-related protein 5 (LRP5) genes as the most likely candidates. However, most of the studies have been carried out in postmenopausal women and older men and show inconsistent results. CASE PRESENTATION: We report a case of a 26-year old male who presented with severe back pain of acute onset, unrelated to any kind of trauma, and diffuse myalgia...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222400/antiprotozoal-antimycobacterial-and-anti-inflammatory-evaluation-of-cnidoscolus-chayamansa-mc-vaugh-extract-and-the-isolated-compounds
#6
Mariana Z Pérez-González, Gabriel A Gutiérrez-Rebolledo, Lilián Yépez-Mulia, Irma S Rojas-Tomé, Julieta Luna-Herrera, María A Jiménez-Arellanes
Cnidoscolus chayamansa is a medicinal and edible plant known as Chaya, is commonly used as an anti-inflammatory, antiprotozoal, antibacterial agent and as a remedy for respiratory illness, gastrointestinal disorders, and vaginal infections related with the inflammation process. In this paper, we describe the plant's phytochemical analysis and biological activities (antimycobacterial, antibacterial, antiprotozoal, and anti-inflammatory properties) of the CHCl3:MeOH (1:1) leaves extract and isolated compounds, as well as the acute and sub-acute toxic effects...
February 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28222397/a-novel-approach-towards-design-synthesis-and-evaluation-of-some-schiff-base-analogues-of-2-aminopyridine-and-2-aminobezothiazole-against-hepatocellular-carcinoma
#7
Shinu Chacko, Subir Samanta
Hepatocellular carcinoma is the most common primary malignancy of the liver with poor prognosis. In this study novel, Schiff's bases of 2-aminopyridine (SSSC-26 to 31) and 2-aminobenzothiazole (SSSC-32 to 37) were designed, synthesised and evaluated for antioxidant potential using DPPH method, and anti-hepatocellular carcinoma property using diethylnitrosamine (DEN) induced hepatocellular carcinoma rat model. The in-silico pharmacokinetic, rule of five and toxicity studies reveals that all the leads have an excellent intrinsic quality and sufficient structural features necessary for an oral activity...
February 18, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28222394/pancreatoprotective-effects-of-geniotrigona-thoracica-stingless-bee-honey-in-streptozotocin-nicotinamide-induced-male-diabetic-rats
#8
Muhammad Shakir Abdul Aziz, Nelli Giribabu, Pasupuleti Visweswara Rao, Naguib Salleh
: Stingless bee honey (SLBH) has been claimed to possess multiple health benefits. Its anti-diabetic properties are however unknown. In this study, ability of SLBH from Geniotrigona thoracica stingless bee species in ameliorating pancreatic damage and in maintaining metabolic profiles were investigated in diabetic condition. METHODS: SLBH at 1 and 2g/kg/b.w. was given orally to streptozotocin (STZ)-nicotinamide-induced male diabetic rats for 28days. Metabolic parameters (fasting blood glucose-FBG and lipid profiles-LP and serum insulin) were measured by biochemical assays...
February 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28222374/diuron-causes-sinking-retardation-and-physiochemical-alteration-in-marine-diatoms-thalassiosira-pseudonana-and-skeletonema-marinoi-dohrnii-complex
#9
Mst Ruhina Margia Khanam, Yohei Shimasaki, Md Zahangir Hosain, Koki Mukai, Michito Tsuyama, Xuchun Qiu, Rumana Tasmin, Hiroshi Goto, Yuji Oshima
The present research investigated the effect of diuron on sinking rate and the physiochemical changes in two marine diatoms, Thalassiosira pseudonana (single-celled species) and Skeletonema marinoi-dohrnii complex (chain-forming species). The results revealed that the sinking rate of both diatoms exposed to diuron at a level of 50% effective concentration for growth (EC50) decreased significantly compared with the control. Photosynthetic performance (Fv/Fm and PIABS) of both diatoms also decreased significantly with diuron exposure...
February 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/28222323/a-case-report-of-the-clear-cell-variant-of-gallbladder-carcinoma
#10
Ravi Maharaj, Christo Cave, Kevin Sarran, Nigel Bascombe, Dilip Dan, Wesley Greaves, Wayne A Warner
INTRODUCTION: Clear cell gallbladder carcinoma accounts for less than 1% of all gallbladder malignancies and demonstrates its unique histopathological characteristics in patients with no prior medical illness or familial predisposition. PRESENTATION OF CASE: Here we present a case of a 56-year-old female, with no prior medical conditions presented with a 2-month history of upper abdominal pain. Routine hematological and biochemical tests were unremarkable. An abdominal ultrasound revealed the presence of a gallbladder calculi, and a fundic mass while magnetic resonance cholangiopancreatography revealed a 8...
January 12, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28222216/biochemical-characterization-of-an-extracellular-heat-stable-protease-from-serratia-liquefaciens-isolated-from-raw-milk
#11
François Baglinière, Rafael Locatelli Salgado, Cleonice Aparecida Salgado, Maria Cristina Dantas Vanetti
The protease Ser2 secreted by the psychrotrophic strain Serratia liquefaciens L53, a highly proteolytic strain isolated from Brazilian raw milk was purified and characterized. Using azocasein as substrate, Ser2 exhibited activity in a wide range of pH (5 to 10) and temperature (4 to 60 °C). The optimal activity was detected at pH 8.0 and at a temperature of 37 °C. This protease, still active at 4, 7, and 10 °C, was strongly inhibited by chelating agents and by dithiothreitol, a reducing agent. These results confirmed that Ser2 belongs to the peptidase family M10 and requires Ca(2+) , Zn(2+) , and disulfide bridges for stability...
February 21, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28222177/phospholipid-binding-to-the-fak-catalytic-domain-impacts-function
#12
Jessica E Hall, Michael D Schaller
Focal adhesion kinase is an essential nonreceptor tyrosine kinase that plays an important role in development, in homeostasis and in the progression of human disease. Multiple stimuli activate FAK, which requires a change in structure from an autoinhibited to activated conformation. In the autoinhibited conformation the FERM domain associates with the catalytic domain of FAK and PI(4,5)P2 binding to the FERM domain plays a role in the release of autoinhibition, activating the enzyme. An in silico model of FAK/PI(4,5)P2 interaction suggests that residues on the catalytic domain interact with PI(4,5)P2, in addition to the known FERM domain PI(4,5)P2 binding site...
2017: PloS One
https://www.readbyqxmd.com/read/28222171/metabolite-profiling-of-the-carnivorous-pitcher-plants-darlingtonia-and-sarracenia
#13
Hannu Hotti, Peddinti Gopalacharyulu, Tuulikki Seppänen-Laakso, Heiko Rischer
Sarraceniaceae is a New World carnivorous plant family comprising three genera: Darlingtonia, Heliamphora, and Sarracenia. The plants occur in nutrient-poor environments and have developed insectivorous capability in order to supplement their nutrient uptake. Sarracenia flava contains the alkaloid coniine, otherwise only found in Conium maculatum, in which its biosynthesis has been studied, and several Aloe species. Its ecological role and biosynthetic origin in S. flava is speculative. The aim of the current research was to investigate the occurrence of coniine in Sarracenia and Darlingtonia and to identify common constituents of both genera, unique compounds for individual variants and floral scent chemicals...
2017: PloS One
https://www.readbyqxmd.com/read/28222104/how-important-is-thermodynamics-for-identifying-elementary-flux-modes
#14
Sabine Peres, Mario Jolicœur, Cécile Moulin, Philippe Dague, Stefan Schuster
We present a method for computing thermodynamically feasible elementary flux modes (tEFMs) using equilibrium constants without need of internal metabolite concentrations. The method is compared with the method based on a binary distinction between reversible and irreversible reactions. When all reactions are reversible, adding the constraints based on equilibrium constants reduces the number of elementary flux modes (EFMs) by a factor of two. Declaring in advance some reactions as irreversible, based on reliable biochemical expertise, can in general reduce the number of EFMs by a greater factor...
2017: PloS One
https://www.readbyqxmd.com/read/28222035/nutritional-status-and-metabolic-profile-in-neurologically-impaired-pediatric-surgical-patients
#15
Gloria Pelizzo, Valeria Calcaterra, Veronica Carlini, Mario Fusillo, Matteo Manuelli, Catherine Klersy, Noemi Pasqua, Elona Luka, Riccardo Albertini, Mara De Amici, Hellas Cena
BACKGROUND: Malnutrition is reported in pediatric neuromotor disability and impacts the child's health. We described the nutritional and metabolic status in neurologically impaired (NI) children undergoing surgery. METHODS: Anthropometry, body composition, hormonal and nutritional evaluations were performed in 44 NI subjects (13.7±8.0 years). Energy needs were calculated by Krick's formula. Metabolic syndrome (MS) was defined applying the following criteria (≥3 defined MS): fasting blood glucose >100 mg/dL and/or homeostasis model assessment for insulin resistance (HOMA-IR) >97...
February 21, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28222020/high-dose-biotin-therapy-leading-to-false-biochemical-endocrine-profiles-validation-of-a-simple-method-to-overcome-biotin-interference
#16
Marie-Liesse Piketty, Dominique Prie, Frederic Sedel, Delphine Bernard, Claude Hercend, Philippe Chanson, Jean-Claude Souberbielle
BACKGROUND: High-dose biotin therapy is beneficial in progressive multiple sclerosis (MS) and is expected to be adopted by a large number of patients. Biotin therapy leads to analytical interference in many immunoassays that utilize streptavidin-biotin capture techniques, yielding skewed results that can mimic various endocrine disorders. We aimed at exploring this interference, to be able to remove biotin and avoid misleading results. METHODS: We measured free triiodothyronine (fT3), free thyroxine (fT4), thyroid-stimulating hormone (TSH), parathyroid homrone (PTH), 25-hydroxyvitamin D (25OHD), follicle-stimulating hormone (FSH), luteinizing hormone (LH), prolactin, C-peptide, cortisol (Roche Diagnostics assays), biotin and its main metabolites (liquid chromatography tandem mass spectrometry) in 23 plasmas from MS patients and healthy volunteers receiving high-dose biotin, and in 39 biotin-unsupplemented patients, before and after a simple procedure (designated N5) designed to remove biotin by means of streptavidin-coated microparticles...
February 21, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28221963/prevalence-and-antimicrobial-resistance-of-enterobacteriaceae-in-shell-eggs-from-small-scale-poultry-farms-and-farmers-markets
#17
A Kilonzo-Nthenge, S N Nahashon, S Godwin, S Liu, D Long
Public health concerns over the emergence of antimicrobial resistant bacteria have increased recently. The purpose of this study was to investigate the prevalence of antimicrobial resistant Enterobacteriaceae in shell eggs purchased from small poultry farms and farmers' markets. A total of 504 eggs were pooled to make 252 composite samples, consisting of 2 eggs per composite. The microbial quality of shell eggs was determined by standard quantitative, biochemical, and PCR techniques. Susceptibility to 13 antimicrobial agents was determined by the Kirby-Bauer disk diffusion technique, and results were interpreted based on Clinical and Laboratory Standards Institute values...
December 2016: Journal of Food Protection
https://www.readbyqxmd.com/read/28221782/the-cation-%C3%AF-interaction-enables-a-halo-tag-fluorogenic-probe-for-fast-no-wash-live-cell-imaging-and-gel-free-protein-quantification
#18
Yu Liu, Kun Miao, Noah P Dunham, Hongbin Liu, Matthew Fares, Amie K Boal, Xiaosong Li, Xin Zhang
Design of fluorogenic probes for Halo-tag is highly desirable but challenging. Previous work achieved this goal by controlling the chemical switch of spirolactones upon the covalent conju-gation between Halo-tag and probes or by incorporating a 'channel dye' into the substrate bind-ing tunnel of Halo-tag. In this work, we have developed a novel class of Halo-tag fluorogenic probes that are derived from solvatochromic fluorophores. The optimal probe, harboring a ben-zothiadiazole scaffold, exhibits a 1000-fold fluorescence enhancement upon reaction with Halo-tag...
February 21, 2017: Biochemistry
https://www.readbyqxmd.com/read/28221776/the-horizon-of-materiobiology-a-perspective-on-material-guided-cell-behaviors-and-tissue-engineering
#19
Yulin Li, Yin Xiao, Changsheng Liu
Although the biological functions of cell and tissue can be regulated by biochemical factors (e.g., growth factors, hormones), the biophysical effects of materials on the regulation of biological activity are receiving more attention. In this Review, we systematically summarize the recent progress on how biomaterials with controllable properties (e.g., compositional/degradable dynamics, mechanical properties, 2D topography, and 3D geometry) can regulate cell behaviors (e.g., cell adhesion, spreading, proliferation, cell alignment, and the differentiation or self-maintenance of stem cells) and tissue/organ functions...
February 21, 2017: Chemical Reviews
https://www.readbyqxmd.com/read/28221333/idiopathic-bilateral-profound-hypotony-in-an-unknown-progressive-neurodegenerative-disorder
#20
Lorraine M Provencher, Pamela C Carter, Wallace L M Alward
PURPOSE: To present a unique case of idiopathic bilateral hypotony in a patient with progressive, undiagnosed neurological decline, possibly due to mitochondrial disease, and to explore mechanisms of disease and potential treatment options. METHODS: This is a case report. PATIENT: A 17-year-old boy with a history of chronic progressive bilateral vision loss and hypotony in the setting of progressive gait abnormalities, lower extremity spasticity, nystagmus, and urinary retention starting around age 8...
February 17, 2017: Journal of Glaucoma
keyword
keyword
7420
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"