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https://www.readbyqxmd.com/read/28632164/the-role-of-hemoproteins-hemoglobin-myoglobin-and-neuroglobin-in-endogenous-thiosulfate-production-processes
#1
REVIEW
Anna Bilska-Wilkosz, Małgorzata Iciek, Magdalena Górny, Danuta Kowalczyk-Pachel
Thiosulfate formation and biodegradation processes link aerobic and anaerobic metabolism of cysteine. In these reactions, sulfite formed from thiosulfate is oxidized to sulfate while hydrogen sulfide is transformed into thiosulfate. These processes occurring mostly in mitochondria are described as a canonical hydrogen sulfide oxidation pathway. In this review, we discuss the current state of knowledge on the interactions between hydrogen sulfide and hemoglobin, myoglobin and neuroglobin and postulate that thiosulfate is a metabolically important product of this processes...
June 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28632082/the-%C3%AE-helix-alignment-of-proteins-in-water-solution-toward-a-high-frequency-electromagnetic-field-a-ftir-spectroscopy-study
#2
Emanuele Calabrò, Salvatore Magazù
The aim of this article was to study the effects of mobile phone electromagnetic waves at 1750 MHz on the Amide I and Amide II vibration bands of some proteins in bidistilled water solution by means of Fourier transform infrared (FTIR) spectroscopy and Fourier self-deconvolution (FSD) analysis. The proteins that were used for the experiment were hemoglobin, myoglobin, bovine serum albumin and lysozyme. The exposure system consisted of microwaves emitted by an operational mobile phone at the frequency at 1750 MHz at the average power density of 1 W/m(2)...
June 20, 2017: Electromagnetic Biology and Medicine
https://www.readbyqxmd.com/read/28631073/compartment-syndrome-after-gynecologic-laparoscopy-systematic-review-of-the-literature-and-establishment-of-normal-values-for-postoperative-serum-creatine-kinase-and-myoglobin-levels
#3
Katrin Hefler-Frischmuth, Judith Lafleur, Gudrun Brunnmayr-Petkin, Franz Roithmeier, Verena Unterrichter, Lukas Hefler, Clemens Tempfer
PURPOSE: To evaluate published evidence in the literature on compartment syndrome (CS) in association with gynecologic surgery and to establish postoperative normal values for serum creatine kinase (CK) and myoglobin. METHODS: The present study consists of a case report of a patient with CS, a systematic review including 37 studies and 86 patients with CS, and a retrospective cohort study of 300 patients undergoing various types of laparoscopy for benign or malignant diseases in order to establish postoperative normal values...
June 19, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28630575/acute-and-post-exercise-physiological-responses-to-high-intensity-interval-training-in-endurance-and-sprint-athletes
#4
Lukas Cipryan, Gerhard Tschakert, Peter Hofmann
The purpose of the presented study was to compare acute and post-exercise differences in cardiorespiratory, metabolic, cardiac autonomic, inflammatory and muscle damage responses to high-intensity interval exercise (HIIT) between endurance and sprint athletes. The study group consisted of sixteen highly-trained males (age 22.1 ± 2.5 years) participating in endurance (n = 8) or sprint (n = 8) sporting events. All the participants underwent three exercise sessions: short HIIT (work interval duration 30s), long HIIT (3min) and constant load exercise (CE)...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28629523/significance-of-erythropoietin-receptor-antagonist-emp9-in-cancers
#5
Yoshiko Yasuda, Mitsugu Fujita
We have clarified that cancer cells express their own erythropoietin (Epo) and its receptor (EpoR) mRNA levels, and the respective proteins, which are under the control of Epo-EpoR signaling. Then we explored to inhibit the Epo-EpoR signaling with an EpoR antagonist Epo mimetic peptide 9 (EMP9) that is a derivative of an Epo-mimicking peptide EMP1. In the study of the cancer cell lines in vitro, rhEpo accelerated the cancer cell growth, whereas the EMP9 inhibited the cell growth along with the inhibition of STAT5 tyrosine phosphorylation...
2017: Vitamins and Hormones
https://www.readbyqxmd.com/read/28628381/monoclonal-immunoglobulin-associated-proliferative-glomerulonephritis-characterized-by-organized-deposits-of-striated-ultra-substructures-a-case-report
#6
Shigeo Hara, Hiroyasu Tsukaguchi, Tastufumi Oka, Makiko Kusabe, Masayuki Mizui, Kensuke Joh
We herein report the case of a 64-year-old male who presented with progressive glomerulonephritis notable for organized and striated ultra-substructures. The patient was diagnosed with hypertension and proteinuria 3 years prior to admission and subsequently developed nephrotic syndrome and impairment of renal function. Laboratory tests did not reveal any evidence of infections or autoimmune diseases. Monoclonal gammopathy was not detected in serum or urine, although a small population of abnormal plasma cell clones was detected by flow cytometry...
June 19, 2017: Ultrastructural Pathology
https://www.readbyqxmd.com/read/28621517/simultaneous-measurements-of-mass-and-collisional-cross-section-of-single-ions-with-charge-detection-mass-spectrometry
#7
Andrew G Elliott, Conner C Harper, Haw-Wei Lin, Anna Christine Susa, Zijie Xia, Evan R Williams
The masses and mobilities of single multiply charged ions of cytochrome c, ubiquitin, myoglobin and bovine serum albumin formed by electrospray ionization are measured using charge detection mass spectrometry (CDMS). Single ions are trapped and repeatedly measured as they oscillate inside an electrostatic ion trap with cone electrodes for up to the maximum trapping time set at 500 ms. The histograms of the many single ion oscillation frequencies have resolved peaks that correspond to the different charge states of each protein...
June 16, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28620483/utilisation-of-supplemented-l-carnitine-for-fuel-efficiency-as-an-antioxidant-and-for-muscle-recovery-in-labrador-retrievers
#8
Jessica L Varney, J W Fowler, W C Gilbert, C N Coon
The primary goal was to investigate the effects of l-carnitine on fuel efficiency, as an antioxidant, and for muscle recovery in Labrador retrievers. Dogs were split into two groups, with one group being supplemented with 250 mg/d of Carniking™ l-carnitine powder. Two experiments (Expt 1 and Expt 2) were performed over a 2-year period which included running programmes, activity monitoring, body composition scans and evaluation of recovery using biomarkers. Each experiment differed slightly in dog number and design: fifty-six v...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28616615/the-predictive-value-of-biochemical-parameters-in-evaluating-patients-with-abdominal-trauma-the-new-scoring-system
#9
Ekrem Musalar, Murat Ersel, Funda Karbek Akarca, Güçlü Selahattin Kıyan, Özge Can
AIM: The aim of this study was to investigate the contribution of non-invasively and rapidly obtained biochemical parameter results to the diagnosis and follow-up of intraabdominal injuries in multitrauma patients. MATERIAL AND METHODS: A total of 2604 multitrauma patients who were treated following their referral to our emergency department between January 2009 and January 2012 were retrospectively reviewed. A logistic regression analysis was used in the risk assessment...
June 2017: Turkish Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28616389/fibrosarcoma-of-the-eyelid-in-two-sibling-czech-wolfdogs
#10
Laura Nordio, Sabina Fattori, Chiara Giudice
Most canine tumors of the eyelid are tumors generally encountered in the skin. They are most commonly of epithelial origin and benign. In this report, we describe the cases of two sibling Czech wolfdogs presented, one year apart, with a subcutaneous mass involving the left eyelid. Both lesions were histologically consistent with a diagnosis of subcutaneous fibrosarcoma. Immunohistochemical analyses of the tumors revealed a mild positivity for vimentin and negativity for GFAP, desmin, αSMA, myoglobin, S100, PNL2 and calponin, excluding all differential diagnosis (i...
2017: Open veterinary journal
https://www.readbyqxmd.com/read/28612300/effects-of-photobiomodulation-therapy-on-bothrops-moojeni-snake-envenomed-gastrocnemius-of-mice-using-enzymatic-biomarkers
#11
Doroty Mesquita Dourado, Rosemary Matias, Marcos Barbosa-Ferreira, Baldomero Antonio Kato da Silva, Jéssica de Araujo Isaias Muller, Willians Fernando Vieira, Maria Alice da Cruz-Höfling
Bothropic venom contains a range of biologically active substances capable of causing severe local and systemic envenoming symptomatology within its victims. The snake anti-venom is effective against systemic effects but has no neutralizing effect against the fast developing local effects. Herein, mice gastrocnemius injected with Bothrops moojeni venom (40 μg/kg) or saline solution were irradiated with HeNe (632.8 nm) and GaAs (904 nm) lasers (daily energy density of 4 J/cm(2); 0.03/0.21 power density; 0...
June 13, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28610806/heart-failure-in-patients-with-kidney-disease-and-iron-deficiency-the-role-of-iron-therapy
#12
Aleix Cases Amenós, Raquel Ojeda López, José María Portolés Pérez
Chronic kidney disease and anaemia are common in heart failure (HF) and are associated with a worse prognosis in these patients. Iron deficiency is also common in patients with HF and increases the risk of morbidity and mortality, regardless of the presence or absence of anaemia. While the treatment of anaemia with erythropoiesis-stimulating agents in patients with HF have failed to show a benefit in terms of morbidity and mortality, treatment with IV iron in patients with HF and reduced ejection fraction and iron deficiency is associated with clinical improvement...
June 10, 2017: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
https://www.readbyqxmd.com/read/28609447/blood-biomarkers-in-male-and-female-participants-after-an-ironman-distance-triathlon
#13
Tom Danielsson, Jörg Carlsson, Hendrik Schreyer, Jonas Ahnesjö, Lasse Ten Siethoff, Thony Ragnarsson, Åsa Tugetam, Patrick Bergman
BACKGROUND: While overall physical activity is clearly associated with a better short-term and long-term health, prolonged strenuous physical activity may result in a rise in acute levels of blood-biomarkers used in clinical practice for diagnosis of various conditions or diseases. In this study, we explored the acute effects of a full Ironman-distance triathlon on biomarkers related to heart-, liver-, kidney- and skeletal muscle damage immediately post-race and after one week's rest...
2017: PloS One
https://www.readbyqxmd.com/read/28608694/iron-strapped-porphyrins-with-carboxylic-acid-groups-hanging-over-the-coordination-site-synthesis-x-ray-characterization-and-dioxygen-binding
#14
Bernard Boitrel, Ismail Hijazi, Thierry Roisnel, Koji Oohora, Takashi Hayashi
A series of myoglobin active site analogues were synthesized and characterized to investigate the dioxygen binding effects of a flexible distal strap over the coordination site. These four synthetic models differ mostly by the shape and polarity of their cavities and also possibly by motion of the distal strap attached to two of the meso carbon atoms. Each of the four models has an intramolecular nitrogen base that axially binds the iron(II) cation inside the porphyrin, but they differ either by the nature of the distal strap or by its mobility...
June 13, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28604868/reactions-of-persulfides-with-the-heme-cofactor-of-oxidized-myoglobin-and-microperoxidase-11-reduction-or-coordination
#15
Erwan Galardon, Florian Huguet, Christian Herrero, Rémy Ricoux, Isabelle Artaud, Dominique Padovani
Persulfides of cysteine (CysSSH), glutathione (GSSH) or N-methoxycarbonyl-penicillamine (NAcPenSSH) react with the ferric form of myoglobin (metMb(iii)) to yield the oxy-ferrous (oxyMb(ii)) or deoxy-ferrous (deoxyMb(ii)) forms of myoglobin under aerobic or anaerobic conditions, respectively. Under aerobic conditions, CysSSH and NAcPenSSH react with the hypervalent form of myoglobin (ferrylMb(iv)) to yield oxyMb(ii) as the final product with the formation of metMb(iii) as an intermediate. CysSSH and NAcPenSSH coordinate the ferric form of N-acetylated microperoxidase (NAcMP11(iii)) to yield the disulfanido complex NAcMP11(iii)(NAcPenSS), as shown by UV-vis and EPR spectroscopy...
June 12, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28586635/tin-protoporphyrin-activates-the-oxidant-dependent-nrf2-cytoprotective-pathway-and-mitigates-acute-kidney-injury
#16
Ali C M Johnson, Jeff J Delrow, Richard A Zager
Tin protoporphyrin (SnPP), a heme oxygenase (HO) inhibitor, can paradoxically protect against diverse forms of acute kidney injury (AKI). This study sought potential underlying mechanisms. CD-1 mice received intravenous SnPP, followed 4-18 hours later by a variety of renal biochemical, histologic, and genomic assessments. Renal resistance to ischemic-reperfusion injury (IRI) was also sought. SnPP was rapidly taken up by kidney and was confined to proximal tubules. Transient suppression of renal heme synthesis (decreased δ aminolevulinic acid synthase expression), a 2...
May 19, 2017: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/28585329/effect-of-linseed-supplementation-and-slaughter-age-on-meat-quality-of-grazing-crossbred-galician-x-burguete-foals
#17
Rubén Domínguez, Mirian Pateiro, Santiago Crecente, Marta Ruiz, María V Sarriés, José M Lorenzo
BACKGROUND: The aim of this study was to assess the effect of finishing diet (control concentrate vs. linseed concentrate) and slaughter age (13 vs. 26 months) on meat and nutritional quality of foal meat. For this study, 46 foals from crossing Galicia Mountain x Burguete breeds were used. RESULTS: The obtained results showed that slaughter age had influence on chemical composition and colour parameters. Foals slaughtered at the age of 13 months had lower content of intramuscular fat and higher cholesterol contents than those slaughtered at 26 months of age...
June 5, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28582757/comparative-analysis-of-muscle-phosphoproteome-induced-by-salt-curing
#18
Zhenyu Wang, Caixia Zhang, Zheng Li, Qingwu Shen, Dequan Zhang
Phosphorylated proteins in ovine muscle induced by salt curing were well investigated. Ten topside muscles of crossbred sheep were ground, mixed and divided into two groups, which were cured for 16h with 0% and 3% NaCl, respectively. Muscle proteins of two cured groups were analyzed by two-dimensional electrophoresis coupled with Pro-Q Diamond and SYPRO Ruby staining. The differential phosphorylated proteins were determined using LC-MS/MS and the UniProt database. Ten different phosphoproteins (>1.5 fold) induced by salting were identified, including triosephosphate isomerase, glycogen phosphorylase, creatine kinase M-type, myoglobin, troponin T fast skeletal muscle type, actin, myosin light chain 1/3, tropomyosin beta chain, etc...
May 23, 2017: Meat Science
https://www.readbyqxmd.com/read/28580665/versatile-self-assembly-and-biosensing-applications-of-dna-and-carbon-quantum-dots-coordinated-cerium-ions
#19
Jingcheng Hao, Ling Wang, Yitong Wang, Xiaofeng Sun, Geping Zhang, Shuli Dong
Self-assembly exploits noncovalent interactions to offer a facile and effective method for the soft materials construction with multi-functionalities and diversity. In this work, fluorescence carbon quantum dots with coordinated Ce3+ ions (CQDCe) were firstly synthesized and exploited as building blocks to generate a series of hierarchical structures via ionic self-assembly of CQDCe and biomolecules, DNA, myoglobin (Mb) and hyaluronic acid (HA). In particularly, the vesicles can be constructed by simple mixing oppositely-charged CQDCe and DNA in water...
June 4, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28577598/microwave-assisted-grafting-polymerization-preparation-of-strong-cation-exchange-nylon-6-capillary-channeled-polymer-fibers-and-their-chromatographic-properties
#20
Liuwei Jiang, R Kenneth Marcus
Native nylon 6 C-CP fibers were modified with 2-acrylamido-2-methylpropanesulfonic acid (AMPS) via the microwave-assisted grafting polymerization to affect a strong cation exchange stationary phase. Various concentrations of AMPS and the initiator potassium persulfate (KPS) were used in the modifications. The resultant nylon-SO3H fibers were characterized by Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR), scanning electron microscopy (SEM) and acid-base titrations. The chromatographic properties, including column permeability, protein separation quality, and protein binding capacity, of the nylon-SO3H fiber columns were also studied...
July 18, 2017: Analytica Chimica Acta
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