keyword
MENU ▼
Read by QxMD icon Read
search

Biochemistry*

keyword
https://www.readbyqxmd.com/read/29791169/-epicardial-fat-and-osteoprotegerin-does-a-mutual-relation-exist-pilot-study
#1
Markéta Sovová, Eliška Sovová, Jana Zapletalová, Markéta Kaletová, David Stejskal, Milan Sova, Michal Konečný, Vlastimil Procházka, Drahomíra Vrzalová, Lea Zarivnijová
INTRODUCTION: Epicardial fat (EPI) plays important role in development of metabolic and cardiovascular diseases. According to population studies EPI represents independent risk factor of cardiovascular diseases (CVD) and also for neoplasms. Osteoprotegerin (OPG) is a glycoprotein which have role in regulation of immune and cardiovascular systems. High serum levels of OPG are connected with high cardiovascular risk. The aim of our study was to evaluate possible correlation between EPI and OPG level in asymptomatic relatives of patients with CVD...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29791133/design-construction-and-validation-of-histone-binding-effectors-in-vitro-and-in-cells
#2
Stefan J Tekel, Cassandra M Barrett, Daniel A Vargas, Karmella A Haynes
Chromatin is a system of nuclear proteins and nucleic acids that plays a pivotal role in gene expression and cell behavior, and is therefore the subject of intense study for cell development and cancer research. Biochemistry, crystallography, and reverse genetics have elucidated the macromolecular interactions that drive chromatin regulation. One of the central mechanisms is the recognition of post translational modifications (PTMs) on histone proteins by a family of nuclear proteins known as "readers...
May 23, 2018: Biochemistry
https://www.readbyqxmd.com/read/29790650/a-redox-based-superoxide-generation-system-using-quinone-quinone-reductase
#3
Shailesh Kumar Singh, Syed Masood Husain
Superoxide (O2*-) generation in biological systems is achieved through some of the most complex enzymatic systems. Of these, only the xanthine/xanthine oxidase has been used for in vitro biochemical studies. However, it suffers from limitations such as, lack of suitable heterologous expression system for xanthine oxidase and the irreversible consumption along with low solubility of xanthine under physiological conditions. Here, we report a redox-based, enzyme-catalyzed system where autoxidation of hydroquinone to quinone via semiquinone results in superoxide generation...
May 23, 2018: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/29790450/opisthotonos-and-unilateral-internal-hydrocephalus-associated-with-aberrant-migration-of-serratospiculum-sp-or-serratospiculoides-sp-in-a-prairie-falcon
#4
Arnaud J Van Wettere, Jaqueline P Kurz, Amanda Wilhelm, Jay Dee Ipsen
A juvenile, wild-caught prairie falcon ( Falco mexicanus) kept for falconry was presented to a veterinary hospital for intermittent opisthotonos and torticollis. Clinical examination, complete blood count, serum biochemistry panel, and fecal analysis were unremarkable. Clinical signs did not resolve, and the bird was euthanized 6 mo after the appearance of clinical signs. Autopsy revealed a mild, unilateral hydrocephalus and nematodes within the thoracic air sac. Histopathology demonstrated mild, unilateral hydrocephalus; scattered glial nodules; meningeal nematode sections; and meningeal and intraventricular embryonated eggs...
May 1, 2018: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/29790443/improvement-of-laboratory-turnaround-time-using-lean-methodology
#5
Shradha Gupta, Sahil Kapil, Monica Sharma
Purpose The purpose of this paper is to discuss the implementation of lean methodology to reduce the turnaround time (TAT) of a clinical laboratory in a super speciality hospital. Delays in report delivery lead to delayed diagnosis increased waiting time and decreased customer satisfaction. The reduction in TAT will lead to increased patient satisfaction, quality of care, employee satisfaction and ultimately the hospital's revenue. Design/methodology/approach The generic causes resulting in increasing TAT of clinical laboratories were identified using lean tools and techniques such as value stream mapping (VSM), Gemba, Pareto Analysis and Root Cause Analysis...
May 14, 2018: International Journal of Health Care Quality Assurance
https://www.readbyqxmd.com/read/29789518/olive-oil-and-soybean-oil-based-intravenous-lipid-emulsions-liver-biochemistry-and-clinical-outcomes
#6
Fabio Araujo, Tanis R Fenton, Sara Lukmanji, Maitreyi Raman
Intravenous lipid emulsions are an essential component of parenteral nutrition (PN). Omega-6 reducing strategies may improve outcomes, including reduced PN associated liver disease, however evidence to support this recommendation is insufficient. The primary objective was to compare serum alkaline phosphatase (ALP), among patients provided with either soybean oil (Intralipid) or predominantly olive oil (Clinoleic) lipid emulsions. In this quasi-experimental study, we reviewed the medical records of surgical and medical adult patients who received lipid emulsions for at least seven consecutive days...
May 23, 2018: Nutrients
https://www.readbyqxmd.com/read/29787744/repression-of-map3k1-expression-and-jnk-activity-by-canonical-wnt-signaling
#7
Qinghang Meng, Maureen Mongan, Jingjing Wang, Ying Xia
Morphogenesis is a complex and highly coordinated process orchestrated by temporal spatial activity of developmental pathways. How the different pathways interact to guide the developmental program remains an intriguing and open question. MAP3K1-JNK and Wnt are signaling pathways crucial for embryonic eyelid closure, an epithelial morphogenetic event conserved in mammals. Here we used a mouse model of eyelid development and genetic and biochemistry tools to investigate the relationships between the two pathways...
May 19, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29787727/chromosome-biology-the-smc-kleisin-enzymology-finally-comes-of-age
#8
Thomas G Gligoris
Cohesin and condensin are Smc-kleisin complexes responsible for shaping our chromosomes. Despite extensive genetic and genomic information available on their function, their biochemistry has been hard to study. Two recent studies finally bring exciting new insights into their enzymology.
May 21, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29787567/automated-method-to-differentiate-between-native-and-mirror-protein-models-obtained-from-contact-maps
#9
Monika Kurczynska, Malgorzata Kotulska
Mirror protein structures are often considered as artifacts in modeling protein structures. However, they may soon become a new branch of biochemistry. Moreover, methods of protein structure reconstruction, based on their residue-residue contact maps, need methodology to differentiate between models of native and mirror orientation, especially regarding the reconstructed backbones. We analyzed 130 500 structural protein models obtained from contact maps of 1 305 SCOP domains belonging to all 7 structural classes...
2018: PloS One
https://www.readbyqxmd.com/read/29786767/oral-supplementation-of-lanthanum-zirconate-nanoparticles-moderately-affected-behavior-but-drastically-disturbed-leukocyte-count-serum-cholesterol-levels-and-antioxidant-parameters-from-vital-organs-of-albino-mice-in-a-gender-specific-manner
#10
Muhammad Nazar Aftab, Irum Naz Akram, Tafheem Khosa, Syeda Qandeel Zahra, Irum Bashir, Muhammad Naeem Ashiq, Furhan Iqbal
Lanthanum Zirconate nanoparticles (NPs) are used in blades of gas turbine engines to thermally insulate them and to protect them against hot and corrosive gas streams. However, the information regarding their biocompatibility is limited. The present study was aimed to report the effect of Lanthanum Zirconate NPs on selected aspects of behavior, serum biochemistry, complete blood count and antioxidant parameters from vital organs of albino mice in a gender specific manner. Albino mice, seven weeks old, were orally treated with 75 mg/ml solvent/Kg body weight of Lanthanum Zirconate nanoparticles for consecutive 22 days...
May 21, 2018: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29786422/mechanisms-regulating-the-association-of-protein-phosphatase-1-with-spinophilin-and-neurabin
#11
Michael C Edler, Asma B Salek, Darryl S Watkins, Harjot Kaur, Cameron W Morris, Bryan K Yamamoto, Anthony J Baucum
Protein phosphorylation is a key mediator of signal transduction, allowing for dynamic regulation of substrate activity. Whereas protein kinases obtain substrate specificity by targeting specific amino acid sequences, serine/threonine phosphatase catalytic subunits are much more promiscuous in their ability to dephosphorylate substrates. To obtain substrate specificity, serine/threonine phosphatases utilize targeting proteins to regulate phosphatase subcellular localization and catalytic activity. Spinophilin and its homolog neurabin are two of the most abundant dendritic spine-localized protein phosphatase 1 (PP1) targeting proteins...
May 22, 2018: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/29785852/syntheses-of-gibberellins-a-15-and-a-24-the-key-metabolites-in-gibberellin-biosynthesis
#12
David J-Y D Bon, Lewis Norman Mander, Ping Lan
Gibberellins (GAs) are essential phytohormones involved in numerous aspects of plant growth and development. Notably, the biochemistry and genetics of GA biosynthesis which is associated with their endogenous regulation has been largely resolved, however, a crucial unsolved question remains: the precise mechanism of the stepwise oxidation and subsequent removal of C-20 from C20-precursors leading to bioactive C19 gibberellins is still unresolved. In order to satisfy numerous requests from biologists, practical preparations of certain GAs that were isolated in miniscule quantities are highly demanded...
May 22, 2018: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/29783628/is-3-carboxy-4-methyl-5-propyl-2-furanpropionate-cmpf-a-clinically-relevant-uremic-toxin-in-haemodialysis-patients
#13
Mathilde Luce, Anais Bouchara, Myriam Pastural, Samuel Granjon, Jean Christophe Szelag, Maurice Laville, Walid Arkouche, Denis Fouque, Christophe O Soulage, Laetitia Koppe
3-Carboxy-4-methyl-5-propyl-2-furanpropionate (CMPF) is a metabolite of furan fatty acid and a marker of fish oil intake. CMPF is described as a protein-bound uremic toxin and interacts with free oxygen radicals, which can induce cell damages. However, the clinical consequences of CMPF accumulation in haemodialysis patients remain poorly documented. The aims of this study are to investigate potential association between CMPF levels and (i) biochemical and nutritional parameters; (ii) cardiovascular events and (iii) mortality...
May 18, 2018: Toxins
https://www.readbyqxmd.com/read/29783280/pericardial-cyst-cause-of-sudden-cardiac-death
#14
Marie Brix Ley, Maiken Kudahl Larsen
Cardiovascular disease is the leading cause of sudden death in the world. The etiology of sudden cardiac death involves a wide range of diseases, but seldom pericardial cysts. A pericardial cyst is an uncommon cyst usually located in the middle mediastinum and rarely in the posterior part. They are usually harmless and asymptomatic. Here, we present a case of a 63-year-old woman who presented with dyspnea and hoarseness, but died suddenly after a CT scan was attempted. The detailed forensic pathologic and histologic examination revealed a pericardial cyst located in the posterior mediastinum...
May 21, 2018: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29783198/toxicity-assessment-of-metal-oxide-nano-pollutants-on-tomato-solanum-lycopersicon-a-study-on-growth-dynamics-and-plant-cell-death
#15
Bilal Ahmed, Mohammad Saghir Khan, Javed Musarrat
The present study for the first time demonstrated the interactions of metal oxide (MO) nano-pollutants (CuO and Al2 O3 -NPs) with tissues and cellular DNA of tomato plants grown in soil sand: silt: clay (667:190:143) and Hoagland-hydroponic system and assessed the hazardous effects of NPs on cell physiology and biochemistry. Results of SEM equipped with EDX revealed attachment of variably shaped CuO-NPs (18 nm) and Al2 O3 -NPs (21 nm) on roots, and internalization followed by translocation in plants by ICP-MS and TEM...
May 18, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29782658/recent-advances-on-black-phosphorus-for-energy-storage-catalysis-and-sensor-applications
#16
REVIEW
Hanwen Liu, Kui Hu, Dafeng Yan, Ru Chen, Yuqin Zou, Hongbo Liu, Shuangyin Wang
As a new type of 2D semiconductor, black phosphorus (BP) possesses high charge-carrier mobility and theoretical capacity, thickness-dependent bandgap, and anisotropic structure, which has attracted tremendous attention since early 2014. To explore its full application in all aspects, studies based on BP nanostructures are swiftly expanding from the electronic field to energy storage and even biochemistry. The mechanism and application of BP in Li-/Na-ion battery anodes, oxygen evolution reaction/hydrogen evolution reaction catalysis, photocatalytic hydrogen production, and selective sensors are summarized...
May 21, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29782268/-lipid-blood-profile-in-old-patients-with-ischemic-heart-disease
#17
S V Topolyanskaya, O N Vakulenko, T A Eliseeva, N A Balyasnikova, G A Kalinin, L M Kupina, N V Strizhova
PURPOSE: to assess prevalence of dyslipidemia in patients with ischemic heart disease (IHD) older than 75 years as well as to evaluate possible associations between serum lipids and various cardiovascular and other diseases in these patients. METHODS: We enrolled in this cross sectional study 555 hospitalized IHD patients aged 75-98 years (mean age 86.8 years, 74.5 % women). Levels of lipids (total cholesterol [TC], triglycerides [TG], low and high-density lipoprotein cholesterol [LDLC, HDLC]) were measured by enzyme method on the biochemistry analyzer Konelab 60i...
March 2018: Kardiologiia
https://www.readbyqxmd.com/read/29781076/first-trimester-combined-screening-for-fetal-aneuploidies-enhanced-with-additional-ultrasound-markers-an-8-year-prospective-study
#18
Dragos Nemescu, Adina Bratie, Alexandra Mihaila, Dan Navolan, Adina Tanase
OBJECTIVES: To describe our screening population and audit of the performance of first-trimester screening for Down syndrome, based on a combined test, enhanced with additional ultrasound markers, over the whole period of the study. MATERIAL AND METHODS: We performed a prospective study from 2009 to 2016, which included 1358 singleton fetuses with a crown-rump length of 45-84 mm. The risk of aneuploidy was calculated using nuchal translucency, fetal heart rate (FHR), and additional markers, such as nasal bone (NB), tricuspid flow (TF) and ductus venosus (DV), combined with maternal serum free β-human chorionic gonadotropin (fβ-hCG) and pregnancy-associated plasma protein-A (PAPP-A)...
2018: Ginekologia Polska
https://www.readbyqxmd.com/read/29780118/a-10-year-follow-up-study-of-a-japanese-family-with-ferroportin-disease-a-mild-iron-overload-with-mild-hyperferritinemia-co-occurring-with-hyperhepcidinemia-may-be-benign
#19
Hisao Hayashi, Motoyoshi Yano, Naohito Urawa, Akane Mizutani, Shima Hamaoka, Jun Araki, Yuji Kojima, Yutaka Naito, Ayako Kato, Yasuaki Tatsumi, Koichi Kato
This is a 10-year follow-up study of a family with ferroportin disease A. The proband, a 59-year-old man showed no noteworthy findings with the exception of an abnormal iron level. The proband's 90-year-old father showed reduced abilities in gait and cognition; however, with the exception of his iron level, his biochemistry results were almost normal. Brain imaging showed age-matched atrophy and iron deposition. In both patients, the serum levels of ferritin and hepcidin25, and liver CT scores declined over a 10-year period...
May 18, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29780000/the-effects-of-proton-pump-inhibitor-on-hepatic-vascular-responsiveness-and-hemodynamics-in-cirrhotic-rats
#20
I-Fang Hsin, Shao-Jung Hsu, Chiao-Lin Chuang, Teh-Ia Huo, Hui-Chun Huang, Fa-Yauh Lee, Hsin-Ling Ho, Shu-Yu Chang, Shou-Dong Lee
BACKGROUND: Liver cirrhosis is associated with increased intrahepatic resistance due to hepatic fibrosis and exaggerated vasoconstriction. Recent studies have indicated that proton pump inhibitors (PPIs), in addition to acid suppression, modulate vasoactive substances and vasoresponsiveness. PPIs are frequently prescribed in patients with cirrhosis due to a higher prevalence of peptic ulcers, however other impacts are unknown. METHODS: Liver cirrhosis was induced in Sprague-Dawley rats with common bile duct ligation (BDL)...
May 17, 2018: Journal of the Chinese Medical Association: JCMA
keyword
keyword
3481
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"