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https://www.readbyqxmd.com/read/28722754/-31-p-nmr-evidence-for-peroxide-intermediates-in-lipid-emulsion-photooxidations-phosphine-substituent-effects-in-trapping
#1
Prabhu P Mohapatra, Callistus O Chiemezie, Arina Kligman, Michele M Kim, Theresa M Busch, Timothy C Zhu, Alexander Greer
Intralipid is a lipid emulsion used in photodynamic therapy (PDT) for its light scattering and tissue-simulating properties. The purpose of this study is to determine whether or not Intralipid undergoes photooxidation, we have carried out an Intralipid peroxide trapping study using a series of phosphines [2'-dicyclohexylphosphino-2,6-dimethoxy-1,1'-biphenyl-3-sulfonate, 3-(diphenylphosphino)benzenesulfonate, triphenylphosphine-3,3',3''-trisulfonate, and triphenylphosphine]. Our new findings are as follows: (i) An oxygen atom is transferred from Intralipid peroxide to the phosphine traps in the dark, after the photooxidation of Intralipid...
July 19, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28721486/modulatory-effect-of-lycopene-against-carbofuran-toxicity-in-african-catfish-clarias-gariepinus
#2
Heba S Hamed, Alaa G M Osman
In the current study, African catfish, Clarias gariepinus, was exposed to a sublethal concentration of carbofuran (CF) to investigate its negative effects on biochemical and oxidative stress biomarkers. Also, the putative role of lycopene (LYC) administration in alleviating these negative effects was evaluated. Fish were divided into six groups in triplicates as follows: group I was without treatment, group II was orally administered corn oil, group III was orally administered 18 mg LYC/kg body weight, group IV was exposed to 0...
July 18, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28718031/newcomers-in-paediatric-gi-pathology-childhood-enteropathies-including-very-early-onset-monogenic-ibd
#3
Arzu Ensari, Judith Kelsen, Pierre Russo
Childhood enteropathies are a group of diseases causing severe chronic (>2-3 weeks) diarrhoea often starting in the first week of life with the potential for fatal complications for the affected infant. Early identification and accurate classification of childhood enteropathies are, therefore, crucial for making treatment decisions to prevent life-threatening complications. Childhood enteropathies are classified into four groups based on the underlying pathology: (i) conditions related to defective digestion, absorption and transport of nutrients and electrolytes; (ii) disorders related to enterocyte differentiation and polarization; (iii) defects of enteroendocrine cell differentiation; and (iv) disorders associated with defective modulation of intestinal immune response...
July 17, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28715403/improving-strength-power-muscle-aerobic-capacity-and-glucose-tolerance-through-short-term-progressive-strength-training-among-elderly-people
#4
Eva A Andersson, Per Frank, Marjan Pontén, Björn Ekblom, Maria Ekblom, Marcus Moberg, Kent Sahlin
This protocol describes the simultaneous use of a broad span of methods to examine muscle aerobic capacity, glucose tolerance, strength, and power in elderly people performing short-term resistance training (RET). Supervised progressive resistance training for 1 h three times a week over 8 weeks was performed by RET participants (71±1 years, range 65-80). Compared to a control group without training, the RET showed improvements on the measures used to indicate strength, power, glucose tolerance, and several parameters of muscle aerobic capacity...
July 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28713154/legionella-and-coxiella-effectors-strength-in-diversity-and-activity
#5
REVIEW
Jiazhang Qiu, Zhao-Qing Luo
Legionella pneumophila and Coxiella burnetii are two evolutionarily related intracellular pathogens that use the Dot/Icm type IV secretion system to translocate effectors into host cells. These effectors are essential for the establishment of membrane-bound compartments known as replication vacuoles, which enable the survival and replication of bacteria inside host cells. The effectors interfere with diverse signalling pathways to co-opt host processes, such as vesicle trafficking, ubiquitylation, gene expression and lipid metabolism, to promote pathogen survival...
July 17, 2017: Nature Reviews. Microbiology
https://www.readbyqxmd.com/read/28711273/treatment-methods-following-suicidal-self-administration-of-iv-organophosphate-what-can-additional-lipid-administration-change
#6
Kenan Ahmet Turkdogan, Ali Duman, Mucahit Avcil, Ayhan Akoz, Selcuk Eren Canakcı, Burcak Kantekin
Organic phosphor compounds are highly toxic and life-threatening compounds that are widely used in agriculture, households and gardens worldwide. While oral intakes are observed frequently, toxic effects can also be seen through contract or inhalation. However, toxic cases through the parenteral route have rarely been reported. We had three main aims: first, to present a male patient who self-administered 2ml of monocrotophos intravenously to commit suicide. Our second goal was to present the current multiple treatment methods, such as fast general support, antidote treatment, lipid emulsion treatment, and plasmapheresis along with the literature...
July 8, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28708979/why-human-anti-gal%C3%AE-1-4gal%C3%AE-1-4glc-natural-antibodies-do-not-recognize-the-trisaccharide-on-erythrocyte-membrane-molecular-dynamics-and-immunochemical-investigation
#7
Pavel Volynsky, Roman Efremov, Ilya Mikhalev, Kira Dobrochaeva, Alexander Tuzikov, Elena Korchagina, Polina Obukhova, Evgenia Rapoport, Nicolai Bovin
BACKGROUND: Human blood contains a big variety of natural antibodies, circulating throughout life at constant concentration. Previously, we have found natural antibodies capable of binding to trisaccharide Galα1-4Galβ1-4Glc (P(k)) practically in all humans. Intriguingly, the same trisaccharide is a key fragment of glycosphingolipid globotriaosylceramide (Gb3Cer) - normal component of erythrocyte and endothelial cell membrane, i.e. the antibodies and their cognate antigen coexist without any immunological reaction...
July 11, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28693900/biodegradation-of-pharmaceuticals-and-endocrine-disruptors-with-oxygen-nitrate-manganese-iv-iron-iii-and-sulfate-as-electron-acceptors
#8
Natalie Schmidt, Declan Page, Andreas Tiehm
Biodegradation of pharmaceuticals and endocrine disrupting compounds was examined in long term batch experiments for a period of two and a half years to obtain more insight into the effects of redox conditions. A mix including lipid lowering agents (e.g. clofibric acid, gemfibrozil), analgesics (e.g. diclofenac, naproxen), beta blockers (e.g. atenolol, propranolol), X-ray contrast media (e.g. diatrizoic acid, iomeprol) as well as the antiepileptic carbamazepine and endocrine disruptors (e.g. bisphenol A, 17α-ethinylestradiol) was analyzed in batch tests in the presence of oxygen, nitrate, manganese (IV), iron (III), and sulfate...
June 27, 2017: Journal of Contaminant Hydrology
https://www.readbyqxmd.com/read/28692481/differences-in-coronary-plaque-characteristics-between-patients-with-and-those-without-peripheral-arterial-disease
#9
Krzysztof L Bryniarski, Erika Yamamoto, Higuma Takumi, Lei Xing, Thomas Zanchin, Tomoyo Sugiyama, Hang Lee, Ik-Kyung Jang
INTRODUCTION: Cardiovascular mortality of patients with combined peripheral arterial disease (PAD) and coronary artery disease (CAD) is twice as high as that in those with either disease alone. It is known that patients with PAD undergoing percutaneous coronary intervention have a higher incidence of adverse cardiac events such as myocardial infarction or target vessel revascularization. OBJECTIVE: In this study, we compared the detailed characteristics of culprit and nonculprit plaques between patients with and those without PAD using optical coherence tomography...
July 7, 2017: Coronary Artery Disease
https://www.readbyqxmd.com/read/28689729/trpml1-the-ca-2-retaker-of-the-lysosome
#10
REVIEW
Simone Di Paola, Anna Scotto-Rosato, Diego Luis Medina
Efficient functioning of lysosome is necessary to ensure the correct performance of a variety of intracellular processes such as degradation of cargoes coming from the endocytic and autophagic pathways, recycling of organelles, and signaling mechanisms involved in cellular adaptation to nutrient availability. Mutations in lysosomal genes lead to more than 50 lysosomal storage disorders (LSDs). Among them, mutations in the gene encoding TRPML1 (MCOLN1) cause Mucolipidosis type IV (MLIV), a recessive LSD characterized by neurodegeneration, psychomotor retardation, ophthalmologic defects and achlorhydria...
June 24, 2017: Cell Calcium
https://www.readbyqxmd.com/read/28688336/the-biochemical-nanomechanical-and-chemometric-signatures-of-brain-cancer
#11
Halina Abramczyk, Anna Imiela
Raman spectroscopy and imaging combined with AFM topography and mechanical indentation by AFM have been shown to be an effective tool for analysis and discrimination of human brain tumors from normal structures. Raman methods have potential to be applied in clinical practice as they allow for identification of tumor margins during surgery. In this study, we investigate medulloblastoma (grade IV WHO) (n=5) and the tissue from the negative margins used as normal controls. We compare a high grade medulloblastoma (IV grade), and non-tumor samples from human central nervous system (CNS) tissue...
June 30, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28687361/combined-effects-of-diets-and-temperature-on-mitochondrial-function-growth-and-nutrient-efficiency-in-rainbow-trout-oncorhynchus-mykiss
#12
Jonathan C Eya, Rodrigue Yossa, Dayan Perera, Olasupo Okubajo, Ann Gannam
A 4×3 factorial experiment was conducted to evaluate the effects of two dietary protein sources (mixed fishmeal/plant protein-, and plant protein- based diet), two dietary lipid levels (10% and 20%) and three water temperatures (10°C, 14°C, and 18°C) on the growth performance, nutrient utilization efficiencies and mitochondrial enzyme complex activities in rainbow trout Oncorhynchus mykiss (average weight±SD, 39.5±5g) over a 180day rearing period. At the end of the experiment, weight gain (WG), condition factor (CF), and feed efficiency (FE) were significantly affected by diet×temperature interaction (P<0...
July 4, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28684169/a-potential-non-invasive-glioblastoma-treatment-nose-to-brain-delivery-of-farnesylthiosalicylic-acid-incorporated-hybrid-nanoparticles
#13
Emine Sekerdag, Sevda Lüle, Sibel Bozdağ Pehlivan, Naile Öztürk, Aslı Kara, Abbas Kaffashi, Imran Vural, Ilkay Işıkay, Burҫin Yavuz, Kader Karlı Oguz, Figen Söylemezoğlu, Yasemin Gürsoy-Özdemir, Melike Mut
New drug delivery systems are highly needed in research and clinical area to effectively treat gliomas by reaching a high antineoplastic drug concentration at the target site without damaging healthy tissues. Intranasal (IN) administration, an alternative route for non-invasive drug delivery to the brain, bypasses the blood-brain-barrier (BBB) and eliminates systemic side effects. This study evaluated the antitumor efficacy of farnesylthiosalicylic acid (FTA) loaded (lipid-cationic) lipid-PEG-PLGA hybrid nanoparticles (HNPs) after IN application in rats...
July 3, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28682956/diphenyleneiodonium-mitigates-bupivacaine-induced-sciatic-nerve-damage-in-a-diabetic-neuropathy-rat-model-by-attenuating-oxidative-stress
#14
Zhong-Hua Ji, Zhong-Jie Liu, Zi-Ting Liu, Wei Zhao, Brian A Williams, Hong-Fei Zhang, Le Li, Shi-Yuan Xu
BACKGROUND: Increased oxidative stress has been linked to local anesthetic-induced nerve injury in a diabetic neuropathy (DN) rat model. The current study explores the effects of diphenyleneiodonium (DPI) chloride, an NADPH oxidase (NOX) inhibitor, on bupivacaine-induced sciatic nerve injury in DN rats. METHODS: A rat DN model was established through high-fat diet feeding and streptozotocin injection. The model was confirmed via testing (i) blood glucose, (ii) hindpaw allodynia responses to von Frey (VF) monofilaments, (iii) paw withdrawal thermal latency (PWTL), and (iv) nerve conduction velocity (NCV)...
July 4, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28677803/grape-seed-procyanidin-b2-ameliorates-hepatic-lipid-metabolism-disorders-in-db-db-mice
#15
Mei Yin, Pei Zhang, Fei Yu, Zhen Zhang, Qian Cai, Weida Lu, Baoying Li, Weidong Qin, Mei Cheng, Hao Wang, Haiqing Gao
Diabetes is commonly associated with liver lipid metabolism disorders. AMP-activated protein kinase (AMPK) has a key role in regulating lipid metabolism. Grape seed procyanidin B2 (GSPB2), a natural polyphenol polymer, ameliorates mitochondrial dysfunction and inhibits oxidative stress or apoptosis via AMPK pathways. In the present study, the hypothesis that GSPB2 treatment may ameliorate liver lipid metabolic disorders by activating AMPK and downstream pathways was tested in diabetic mice. Db/m mice were used as controls, and diabetic db/db mice were randomly divided into 2 groups for treatment: Vehicle and GSPB2 (30 mg/kg/day for 10 weeks)...
June 30, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28668595/diagnosing-ozone-stress-and-differential-tolerance-in-rice-oryza-sativa-l-with-ethylenediurea-edu
#16
Md Ashrafuzzaman, Farzana Afrose Lubna, Felix Holtkamp, William J Manning, Thorsten Kraska, Michael Frei
Rising tropospheric ozone concentrations in Asia necessitate the breeding of adapted rice varieties to ensure food security. However, breeding requires field-based evaluation of ample plant material, which can be technically challenging or very costly when using ozone fumigation facilities. The chemical ethylenediurea (EDU) has been proposed for estimating the effects of ozone in large-scale field applications, but controlled experiments investigating constitutive effects on rice or its suitability to detect genotypic differences in ozone tolerance are missing...
June 29, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28667418/diabetic-nephropathy-serum-mir-9-confers-a-poor-prognosis-in-and-is-associated-with-level-changes-of-vascular-endothelial-growth-factor-and-pigment-epithelium-derived-factor
#17
Yanxin Xiao, Shuqin Guo, Yunliang Zhang, Zhiying Bian, Liyan Jia, Yanyun Hu, Jie Chen, Chao Yin, Ning Li, Dongxun Zhang, Xincui Zhao, Jun Wang
OBJECTIVE: To investigate the relationship between the serum level of miR-9 and the progression of diabetic nephropathy (DN) and related molecular mechanisms. RESULTS: Thirty-five healthy subjects and 140 DN patients were divided into five groups: control, DN I-II, DN III, DN IV and DN V. Serum level of miR-9 was measured by real-time qPCR. Serum levels of vascular endothelial growth factor (VEGF), pigment epithelium-derived factor (PEDF) lipids, fasting glucose, insulin, hemoglobin A1c (HBA1c), creatinine, fibrinogen and insulin resistance (HOMA-IR) were also measured...
June 30, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28653675/periprostatic-adipose-inflammation-is-associated-with-high-grade-prostate-cancer
#18
A Gucalp, N M Iyengar, X K Zhou, D D Giri, D J Falcone, H Wang, S Williams, M D Krasne, I Yaghnam, B Kunzel, P G Morris, L W Jones, M Pollak, V P Laudone, C A Hudis, H I Scher, P T Scardino, J A Eastham, A J Dannenberg
BACKGROUND: Obesity, a cause of subclinical inflammation, is associated with increased risk of high-grade prostate cancer (PC) and poor outcomes. Whether inflammation occurs in periprostatic white adipose tissue (WAT), and contributes to the negative impact of obesity on PC aggressiveness, is unknown. METHODS: In a single-center, cross-sectional design, men with newly diagnosed PC undergoing radical prostatectomy were eligible for study participation. The primary objective was to examine the prevalence of periprostatic WAT inflammation defined by the presence of crown-like structures (CLS-P) as detected by CD68 immunohistochemistry...
June 27, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28649059/prevention-of-ccl4-induced-hypogonadism-with-raphanus-sativus-seeds-in-rat
#19
Farhana Tabassum, Muhammad Rashid Khan
Raphanus sativus seeds are used as condiment and to treat hypogonadism, various ailments of liver and kidneys. The aim of this study was to evaluate the potential protective effects of methanol extract of R. sativus seeds (RSME) against hypogonadism induced with carbon tetrachloride (CCl4) in Sprague-Dawley male rats. Thirty six rats were divided in to six groups with six animals in each. Animals of Group I were control and treated with saline, Group II, III and IV were given orally CCl4 (1 ml/kg bw; 10% in corn oil)...
March 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28644688/intraosseous-administration-of-antidotes-a-systematic-review
#20
Audrée Elliott, Pierre-André Dubé, Amélie Cossette-Côté, Laura Patakfalvi, Eric Villeneuve, Martin Morris, Sophie Gosselin
CONTEXT: Intraosseous (IO) access is an established route of administration in resuscitation situations. Patients with serious poisoning presenting to the emergency department may require urgent antidote therapy. However, intravenous (IV) access is not always readily available. OBJECTIVE: This study reviews the current evidence for IO administration of antidotes that could be used in poisoning. The primary outcome was mortality as a surrogate of efficacy. Secondary outcomes included hemodynamic variables, electrocardiographic variables, neurological status, pharmacokinetics outcomes, and adverse effects as defined by each article...
June 23, 2017: Clinical Toxicology
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