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https://www.readbyqxmd.com/read/29674021/solid-phase-microextraction-method-using-a-novel-polystyrene-oleic-acid-imidazole-polymer-in-micropipette-tip-of-syringe-system-for-speciation-and-determination-of-antimony-in-environmental-and-food-samples
#1
Abdul Haleem Panhwar, Mustafa Tuzen, Baki Hazer, Tasneem Gul Kazi
A simple, rapid and sensitive solid phase microextraction method was used for the speciation of inorganic antimony (Sb) by using a novel synthesized polymeric material in micropipette tip of syringe system. In present methodology, the specie of Sb (III) made hydrophobic complex with diethyl dithiocarbamate (DDTC) at pH 5.5 and subsequently adsorbed on polystyrene oleic acid imidazole polymer (POIP), whereas Sb(V) did not made complex and adsorbed on the polymer, remained in aqueous solutions. The strategy of multivariate was carried out to screen out the different variables and assessed the optimum values of their experimental values for the extraction efficiency of analyte...
July 1, 2018: Talanta
https://www.readbyqxmd.com/read/29670910/regiospecific-analysis-of-fatty-acids-and-calculation-of-triglyceride-molecular-species-in-marine-fish-oils
#2
Huijun Zhang, Yingbin Shen, Youwei Zhang, Lirong Li, Xingguo Wang
The regiospecific distribution of fatty acids (FAs) and composition of triglyceride (TAG) molecular species of fishes were analyzed and calculated by pancreatic lipase (PL) hydrolysis and Visual Basic (VB) program. DHA was preferentially located at sn-2 position in TAG molecule, whereas EPA was almost equally distributed in each position of glycerol backbone. DOP, DPP, EPP, PoPP, PPO, and PPP were the predominant TAG species. MPP in anchovy, DDP, DOP, DPP in tuna, and EOO and OOO in salmon were the characteristic TAG molecules, which were meaningful to differentiate marine fish oils...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29666516/a-streamlined-isolation-method-and-the-autoxidation-profiles-of-tuna-myoglobin
#3
Mala Nurilmala, Hideki Ushio, Shugo Watabe, Yoshihiro Ochiai
Determination of the redox state of myoglobin (Mb) gives useful information for evaluating the quality of tuna meat. To attain this purpose, a fast streamlined method has been established basically based on preparative native gel electrophoresis to isolate Mb from the dark muscle of Pacific bluefin tuna. Crude Mb fraction was prepared from dark muscle by ammonium sulfate saturation fractionation and subsequently Mb was purified by preparative native gel electrophoresis under the isoelectric pH of the Mb, resulting in absorption (or trapping) of all the contaminating proteins in the gel...
May 2018: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29662860/splenic-myeloid-metaplasia-in-warm-autoimmune-hemolytic-anemia-waiha-a-retrospective-study
#4
Víctor Manuel Anguiano-Álvarez, Alonso Hernández-Company, Nashla Hamdan-Pérez, Daniel Montante-M, Diego A Zúñiga-Tamayo, Sergio Rodríguez-Rodríguez, Alan Pomerantz, Elena J Tuna-Aguilar
Background: Splenic myeloid metaplasia (SMM) is a kind of extramedullary hematopoiesis, whereas its clinical significance in wAIHA remains unclear. The aim of this study is evaluating the frequency and clinical characteristics of SMM, compared with splenic-congestion (SC). Methods: We included patients with wAIHA treated in a Mexican tertiary hospital between January 1992 and December 2015. All patients received steroids as first-line treatment and splenectomy as second-line treatment...
March 2018: Blood Research
https://www.readbyqxmd.com/read/29659177/the-anatomical-relationships-of-the-ocular-motor-nerves-with-an-emphasis-on-surgical-anatomy-of-the-orbit
#5
Nihal Apaydin, Simel Kendir, S Tuna Karahan
The surgical procedures directed to the orbit are invariably reported to be one of the most challenging procedures of the neurosurgery and it is very important to take measures to protect the ocular nerves. Many researchers have tried to identify safe approaches or safe regions in the orbit but the suggestions and results vary among published studies. The ocular motor nerves are under risk of injury during various approaches to the orbit. Simple but careful attention to potential variations in the origin and anatomical course of the ocular nerves and their relationships to the orbit may help to define "safe zones" during various approaches, thus help to enhance clinical outcomes...
April 16, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29658048/chromium-chains-as-polydentate-fluoride-ligands-for-actinides-and-group-iv-metals
#6
Ji-Dong Leng, Andreas K Kostopoulos, Liam H Isherwood, Ana-Maria Ariciu, Floriana Tuna, Iñigo J Vitórica-Yrezábal, Robin G Pritchard, George F S Whitehead, Grigore A Timco, David P Mills, Richard E P Winpenny
The reactions of {Cr6} horseshoe chains {[nPr2NH2]3[Cr6F11(O2CtBu)10]}2, 1 and precursors of actinides and group IV metals led to a series of ring complexes [nPr2NH2][Cr7TiF6O2(O2CtBu)16], 2, [nPr2NH2][Cr6Ti2F5O3(O2CtBu)16], 3, [Cr6ThF7(O2CtBu)15 (Me2SO)], 4, [(nPr2NH2)2(Cr6Th2F12(O2CtBu)16)], 5 and [nPr2NH2][Cr6U2O2F8(O2CtBu)16(Me2SO)], 6. X-ray structure studies indicate that the {Cr6} chains maintain their structures in these complexes, acting as polydentate fluoride ligands. Their static magnetic properties were measured and fitted by isotropic exchange Hamiltonian...
April 16, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29656644/tuna-oil-alleviate-d-galactose-induced-aging-in-mice-accompanied-by-modulating-gut-microbiota-and-brain-protein-expression
#7
Dijun Zhang, Jiaojiao Han, Yanyan Li, Bei Yuan, Jun Zhou, Lingzhi Cheong, Ye Li, Chenyang Lu, XiuRong Su
To discern whether tuna oil modulates the expression of brain proteins and the gut microbiota structure during aging induced by D-galactose, we generated an aging mouse model with D-galactose treatment, and the mice showed aging and memory deterioration symptoms according to physiological and biochemical indices. Treatment with different doses of tuna oil alleviated the symptoms, the high dose showed a better effect. Subsequently, brain proteomic analysis showed the differentially expressed proteins were involved in damaged synaptic system repairment and signal transduction system enhancement...
April 15, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29629208/a-highly-sensitive-and-selective-colorimetric-hg-2-ion-probe-using-gold-nanoparticles-functionalized-with-polyethyleneimine
#8
Kyung Min Kim, Yun-Sik Nam, Yeonhee Lee, Kang-Bong Lee
A highly sensitive and selective colorimetric assay for the detection of Hg2+ ions was developed using gold nanoparticles (AuNPs) conjugated with polyethyleneimine (PEI). The Hg2+ ion coordinates with PEI, decreasing the interparticle distance and inducing aggregation. Time-of-flight secondary ion mass spectrometry showed that the Hg2+ ion was bound to the nitrogen atoms of the PEI in a bidentate manner (N-Hg2+ -N), which resulted in a significant color change from light red to violet due to aggregation. Using this PEI-AuNP probe, determination of Hg2+ ion can be achieved by the naked eye and spectrophotometric methods...
2018: Journal of Analytical Methods in Chemistry
https://www.readbyqxmd.com/read/29626765/oxidatively-induced-dna-damage-and-base-excision-repair-in-euthymic-patients-with-bipolar-disorder
#9
Deniz Ceylan, Gamze Tuna, Güldal Kirkali, Zeliha Tunca, Güneş Can, Hidayet Ece Arat, Melis Kant, Miral Dizdaroglu, Ayşegül Özerdem
Oxidatively-induced DNA damage has previously been associated with bipolar disorder. More recently, impairments in DNA repair mechanisms have also been reported. We aimed to investigate oxidatively-induced DNA lesions and expression of DNA glycosylases involved in base excision repair in euthymic patients with bipolar disorder compared to healthy individuals. DNA base lesions including both base and nucleoside modifications were measured using gas chromatography-tandem mass spectrometry and liquid chromatography-tandem mass spectrometry with isotope-dilution in DNA samples isolated from leukocytes of euthymic patients with bipolar disorder (n = 32) and healthy individuals (n = 51)...
March 30, 2018: DNA Repair
https://www.readbyqxmd.com/read/29625782/lymph-node-yield-during-radical-prostatectomy-does-not-impact-rate-of-biochemical-recurrence-in-patients-with-seminal-vesicle-invasion-and-node-negative-disease
#10
Ketan K Badani, Balaji N Reddy, Eric J Moskowitz, David J Paulucci, Alp Tuna Beksac, Alberto Martini, Michael J Whalen, Douglas W Skarecky, Linda My Huynh, Thomas E Ahlering
OBJECTIVES: Seminal vesicle invasion (SVI) is a risk factor for poor oncologic outcome in patients with prostate cancer. Modifications to the pelvic lymph node dissection (PLND) during radical prostatectomy (RP) have been reported to have a therapeutic benefit. The present study is the first to determine if lymph node yield (LNY) is associated with a lower risk of biochemical recurrence (BCR) for men with SVI. METHODS: A total of 220 patients from 2 high-volume institutions who underwent RP without adjuvant treatment between 1990 and 2015 and had prostate cancer with SVI (i...
April 3, 2018: Urologic Oncology
https://www.readbyqxmd.com/read/29623101/prediction-of-pathological-subjects-using-genetic-algorithms
#11
Murat Sari, Can Tuna
This paper aims at estimating pathological subjects from a population through various physical information using genetic algorithm (GA). For comparison purposes, K -Means (KM) clustering algorithm has also been used for the estimation. Dataset consisting of some physical factors (age, weight, and height) and tibial rotation values was provided from the literature. Tibial rotation types are four groups as RTER, RTIR, LTER, and LTIR. Each tibial rotation group is divided into three types. Narrow (Type 1) and wide (Type 3) angular values were called pathological and normal (Type 2) angular values were called nonpathological...
2018: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/29619435/seroprevalence-and-risk-factor-of-toxoplasmosis-in-schizophrenia-patients-referred-to-grhasia-psychiatric-hospital-yogyakarta-indonesia
#12
Nina Difla Muflikhah, Supargiyono, Wayan Tunas Artama
Background: Toxoplasmosis is an infectious disease caused by protozoan parasite called Toxoplasma gondii . Toxoplasma gondii is an intracellular protozoan parasite belong to phylum Apicomplexa, is an obligate parasite in mammals. The active proliferating trophozoites or tachyzoites are usually seen in the acute stage of infection, while the resting bradyzoites formed tissue cysts are primary found in muscle and brain. Human infection occurs mainly by ingesting food or water contaminated with oocyst or eating an undercook meat containing tissue cyst...
2018: African Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29614728/diatomite-photonic-crystals-for-facile-on-chip-chromatography-and-sensing-of-harmful-ingredients-from-food
#13
Xianming Kong, Qian Yu, Erwen Li, Rui Wang, Qing Liu, Alan X Wang
Diatomaceous earth-otherwise called diatomite-is essentially composed of hydrated biosilica with periodic nanopores. Diatomite is derived from fossilized remains of diatom frustules and possesses photonic-crystal features. In this paper, diatomite simultaneously functions as the matrix of the chromatography plate and the substrate for surface-enhanced Raman scattering (SERS), by which the photonic crystal-features could enhance the optical field intensity. The on-chip separation performance of the device was confirmed by separating and detecting industrial dye (Sudan I) in an artificial aqueous mixture containing 4-mercaptobenzoic acid (MBA), where concentrated plasmonic Au colloid was casted onto the analyte spot for SERS measurement...
March 31, 2018: Materials
https://www.readbyqxmd.com/read/29609628/reconsideration-of-the-nomadic-condition-of-the-southernmost-guachichiles-based-on-the-relationship-with-their-environment
#14
Eric Mellink, Mónica E Riojas-López, José Antonio Rivera-Villanueva
BACKGROUND: The Guachichiles were a group of Chichimeca people that inhabited the southern and central parts of the Mexican Plateau. In the southern area of their distribution, they occupied and used the tunales, extensive forests of arborescent nopales (Opuntia spp.). Their pre-Columbian distribution was dissected by the Royal Silver Road established by the Spaniards, and this lead to them being main protagonists in the so-called Chichimeca War, during the sixteenth century. With very little first-hand documentation, the Guachichiles were described as savage, warring, primitive, hunting nomads, but little efforts have been done to understand their daily life habits...
April 2, 2018: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/29608623/lipid-and-fatty-acid-dynamics-in-mature-female-albacore-tuna-thunnus-alalunga-in-the-western-indian-ocean
#15
Zahirah Dhurmeea, Heidi Pethybridge, Chandani Appadoo, Nathalie Bodin
Lipid composition in the reproductive and somatic tissues were investigated for female albacore tuna, Thunnus alalunga, in the western Indian Ocean, between latitude 18-21°S and longitude 56-60°E, from January 2014 to March 2015. Highest total lipids (TL) were found in the gonads of spawning-capable females (SCP) (mainly phospholipids, PL, triacylglycerols, TAG and wax esters, WE) and in the liver of females in the late regressing and regenerating ovary phases (mainly TAG, PL and sterols, ST). Muscle TL was low but exhibited high inter-individual variability...
2018: PloS One
https://www.readbyqxmd.com/read/29604194/canned-sea-fish-marketed-in-serbia-their-zinc-copper-and-iron-levels-and-contribution-to-the-dietary-intake
#16
Aleksandar R Popović, Dubravka J Relić, Danijela V Vranić, Jelena A Babić-Milijašević, Lato L Pezo, Jasna M Đinović-Stojanović
The aim of this study was to determine the levels of Zn, Cu, and Fe in three canned fish species marketed Serbia to see if they meet recommended daily intake requirements or exceed safety limits. We collected a total of 207 samples of canned tuna, sardine, and mackerel, in oil or tomato sauce and analysed them with inductively coupled plasma mass spectrometry (ICP-MS) after acid digestion. The highest levels were obtained for Zn (15.1 mg kg-1) and Cu (1.37 mg kg-1) in sardine in oil and tomato sauce, respectively, and for Fe (18...
March 1, 2018: Arhiv za Higijenu Rada i Toksikologiju
https://www.readbyqxmd.com/read/29601848/food-safety-using-nmr-based-metabolomics-assessment-of-the-atlantic-bluefin-tuna-thunnus-thynnus-from-the-mediterranean-sea
#17
Tiziana Cappello, Alessia Giannetto, Vincenzo Parrino, Giuseppe De Marco, Angela Mauceri, Maria Maisano
Seafood is a valuable component of human diet because of its nutritional properties. The Atlantic bluefin tuna Thunnus thynnus is a scombroid fish highly appreciated as seafood worldwide. Being a top pelagic predator, concerns have been raised over human health risks due to its consumption. Therefore, herein it was comprehensively evaluated the health status and potential metabolite shifts between sexes of bluefin tuna from the Mediterranean Sea, proved to bioaccumulate environmental obesogens, namely polychlorinated biphenyls (PCBs) and organochlorine pesticides (OCPs) at hepatic level...
March 27, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29597270/prediction-of-tibial-rotation-pathologies-using-particle-swarm-optimization-and-k-means-algorithms
#18
Murat Sari, Can Tuna, Serkan Akogul
The aim of this article is to investigate pathological subjects from a population through different physical factors. To achieve this, particle swarm optimization (PSO) and K-means (KM) clustering algorithms have been combined (PSO-KM). Datasets provided by the literature were divided into three clusters based on age and weight parameters and each one of right tibial external rotation (RTER), right tibial internal rotation (RTIR), left tibial external rotation (LTER), and left tibial internal rotation (LTIR) values were divided into three types as Type 1, Type 2 and Type 3 (Type 2 is non-pathological (normal) and the other two types are pathological (abnormal)), respectively...
March 28, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29570229/ecological-data-for-western-indian-ocean-tuna
#19
Nathalie Bodin, Emmanuel Chassot, Fany Sardenne, Iker Zudaire, Maitane Grande, Zahirah Dhurmeea, Hilario Murua, Julien Barde
Tuna are marine apex predators that inhabit the tropical and sub-tropical waters of the Indian Ocean where they support socially and economically important fisheries. Key component of pelagic communities, tuna are bioindicator species of anthropogenic and climate-induced changes through modifications of the structure and related energy-flow of food webs and ecosystems. The IndianEcoTuna dataset provides a panel of ecological tracers measured in four soft tissues (white muscle, red muscle, liver, gonads) from 1,364 individuals of four species, i...
March 23, 2018: Ecology
https://www.readbyqxmd.com/read/29567409/portuguese-preschool-children-benefit-epa-dha-and-se-and-risk-mehg-assessment-through-the-consumption-of-selected-fish-species
#20
C Cardoso, I Bernardo, N M Bandarra, L Louro Martins, C Afonso
This study aimed to assess the risk-benefit balance associated to fish consumption by Portuguese preschool children. For this purpose, databases (from IPMA and literature) were mined and mathematically processed by a model based on the Extreme Value Theory assuming consumption scenarios. Eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) and selenium (Se) and methylmercury (MeHg) were selected as critical components of fish, given their health impact and significant contents in some fish species. Assessment also took into account that Se may protect against MeHg toxicity...
March 19, 2018: Food and Chemical Toxicology
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