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https://www.readbyqxmd.com/read/29783268/lipidomic-components-alterations-of-human-follicular-fluid-reveal-the-relevance-of-improving-clinical-outcomes-in-women-using-progestin-primed-ovarian-stimulation-compared-to-short-term-protocol
#1
Xiaowei Wen, Yanping Kuang, Lixia Zhou, Baofeng Yu, Qiuju Chen, Yonglun Fu, Zheng Yan, Haiyan Guo, Qifeng Lyu, Jun Xie, Weiran Chai
BACKGROUND Increasing the success rate of in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI) is a duty of clinicians that has made many seek a variety of protocols. This study was undertaken to use a liquid chromatography-mass spectrometry (LC-MS) to define the alterations of follicular fluid (FF) lipid metabolites in patients undergoing progestin-primed ovarian stimulation (PPOS) compared with short-term protocol, revealing potential correlations between the differentially expressed lipids and ameliorative clinical outcomes...
May 21, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29783225/-features-of-exchange-of-calcium-saliva-in-patients-with-gastroesophageal-reflux-disease
#2
Mykola А Bychkov, Maryana М Yakhnitska
OBJECTIVE: Introduction: The pathogenesis of gastroesophageal reflux disease (GERD) is a topical issue of modern gastroenterology. There are a number of scientific papers on changes in the qualitative and quantitative composition of saliva, which triggers a cascade of biochemical reactions, the consequence of which is the destruction of the resistance of the mucous membrane of the esophagus. Calcium is a macro element that provides the normal functioning of cells. Parathormone also regulates the metabolism of calcium in the body...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783211/-the-association-between-enpp1-rs997509-polymorphism-and-type-2-diabetes-mellitus-development-in-ukrainian-population
#3
Irina V Marchenko, Yevhen I Dubovyk, Gennadii F Tkach, Olena S Maksymova, Olha I Matlai, Alexander V Ataman, Viktoriia Yu Harbuzova
OBJECTIVE: Introduction: Genome-Wide Association Studies have identified a large number of polymorphic loci associated with type 2 diabetes mellitus (T2DM). Ectonucleotide Pyrophosphatase/Phosphodiesterase 1 (ENPP1) gene is one of the candidate genes which have primary importance in T2DM development. Several studies revealed the association between ENPP1 polymorphisms, including rs997509, and T2DM, obesity, insulin resistance and metabolic syndrome in different populations. The aim: To test the association between ENPP1 rs997509 polymorphism and T2DM development in patients with different risk factors in the Ukrainian population...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783208/the-role-of-hydrogen-sulfide-in-the-progression-mechanisms-of-non-alcoholic-steatohepatitis-and-chronic-kidney-disease
#4
Oksana S Khukhlina, Igor V Gerush, Alona A Antoniv, Olha Ye Mandryk, Tamara G Kopchuk, Svitlana P Melnychuk, Zoriana Ia Kotsiubiichuk
OBJECTIVE: Introduction: The steady increase in the incidence of non-alcoholic steatohepatitis (NASH) on the background of obesity and chronic kidney disease (CKD) in people of working age in Ukraine. The aim: To establish the role of hydrogen sulfide in the mechanisms of mutual burden and progression of non-alcoholic steatohepatitis and chronic kidney disease in patients with obesity. PATIENTS AND METHODS: Materials and methods: 114 patients with NASH were examined on the background of obesity of І-ІІ degree, including: 52 patients with NASH (group 1) (without accompanying CKD), 62 patients with NASH with a comorbid CKD І-ІІ degree (group 2)...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783205/individual-approach-to-the-treatment-of-obese-copd-patients-can-reduce-anthropometric-indicators-the-level-of-systemic-inflammation-and-improve-the-quality-of-life
#5
Lesia V Savchenko, Igor P Kaidashev
OBJECTIVE: Introduction: Chronic obstructive pulmonary disease (COPD) and obesity are major causes of morbidity and mortality worldwide, and according to current estimates, the global burden of these conditions will be even greater. The basis for COPD treatment is bronchodilator therapy and non-pharmacotherapy approaches, such as respiratory rehabilitation and dietary counseling. The aim of this study was to assess the impact of lifestyle modification on anthropometric indices, markers of systemic inflammation, quality of life in patients with COPD and obesity...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29783202/feasibility-of-myocardial-pet-imaging-using-a-benzylguanidine-analog-meta-3-18-f-fluoropropyl-benzylguanidine-18-f-mfpbg
#6
Sang-Keun Woo, Byung Seok Moon, Bom Sahn Kim, Min Hwan Kim, Yong Jin Lee, Jae Ho Jung, Kyo Chul Lee, Youngho Seo, Wook Kim, Sang Moo Lim, Byung Chul Lee, Sang Eun Kim
INTRODUCTION: Global and regional sympathetic activity in the heart can be evaluated using [123 I]meta-iodobenzylguanidine ([123 I]mIBG) imaging. However, [123 I]mIBG is associated with low image spatial resolution and sensitivity in cardiac imaging. We investigated the capability of an F-18-labeled mIBG derivative, meta-(3-[18 F]fluoropropyl)benzylguanidine ([18 F]mFPBG), for identifying ischemic and viable myocardium in a rat model of myocardial infarction. MATERIALS AND METHODS: The ex vivo biodistribution and in vivo metabolic stability of [18 F]mFPBG were investigated in Sprague-Dawley rats...
May 3, 2018: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/29783201/n-4-18-f-fluorobenzyl-cholylglycine-a-novel-tracer-for-pet-of-enterohepatic-circulation-of-bile-acids-radiosynthesis-and-proof-of-concept-studies-in-rats
#7
Kim Frisch, Damion H R Stimson, Taracad Venkatachalam, Gregory K Pierens, Susanne Keiding, David Reutens, Rajiv Bhalla
INTRODUCTION: Enterohepatic circulation (EHC) of conjugated bile acids is an important physiological process crucial for regulation of intracellular concentrations of bile acids and their function as detergents and signal carriers. Only few bile acid-derived imaging agents have been synthesized and hitherto none have been evaluated for studies of EHC. We hypothesized that N-(4-[18 F]fluorobenzyl)cholylglycine ([18 F]FBCGly), a novel fluorine-18 labeled derivative of endogenous cholylglycine, would be a suitable tracer for PET of the EHC of conjugated bile acids, and we report here a radiosynthesis of [18 F]FBCGly and a proof-of-concept study by PET/MR in rats...
May 4, 2018: Nuclear Medicine and Biology
https://www.readbyqxmd.com/read/29783172/headspace-sorptive-extraction-gas-chromatography-mass-spectrometry-method-to-measure-volatile-emissions-from-human-airway-cell-cultures
#8
Mei S Yamaguchi, Mitchell M McCartney, Angela L Linderholm, Susan E Ebeler, Michael Schivo, Cristina E Davis
The human respiratory tract releases volatile metabolites into exhaled breath that can be utilized for noninvasive health diagnostics. To understand the origin of this metabolic process, our group has previously analyzed the headspace above human epithelial cell cultures using solid phase microextraction-gas chromatography-mass spectrometry (SPME-GC-MS). In the present work, we improve our model by employing sorbent-covered magnetic stir bars for headspace sorptive extraction (HSSE). Sorbent-coated stir bar analyte recovery increased by 52 times and captured 97 more compounds than SPME...
May 12, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29783164/potential-risks-from-uv-h-2-o-2-oxidation-and-uv-photocatalysis-a-review-of-toxic-assimilable-and-sensory-unpleasant-transformation-products
#9
REVIEW
Wen-Long Wang, Qian-Yuan Wu, Nan Huang, Zi-Bin Xu, Min-Yong Lee, Hong-Ying Hu
UV based advanced oxidation processes (UV-AOPs) that efficiently eliminate organic pollutants during water treatment have been the subject of numerous investigations. Most organic pollutants are not completely mineralized during UV-AOPs but are partially oxidized into transformation products (TPs), thereby adding complexity to the treated water and posing risks to humans, ecological systems, and the environment. While the degradation kinetics and mechanisms of pollutants have been widely documented, there is little information about the risks associated with TPs...
May 15, 2018: Water Research
https://www.readbyqxmd.com/read/29783114/geosphere-biosphere-circulation-of-chemical-elements-in-soil-and-plant-systems-from-a-100-km-transect-from-southern-central-norway
#10
Clemens Reimann, Karl Fabian, Belinda Flem, Malin Andersson, Peter Filzmoser, Peter Englmaier
Geochemical element separation is studied in 14 different sample media collected at 41 sites along an approximately 100-km long transect north of Oslo. At each site, soil C and O horizons and 12 plant materials (birch/spruce/cowberry/blueberry leaves/needles and twigs, horsetail, braken fern, pine bark and terrestrial moss) were sampled. The observed concentrations of 29 elements (K, Ca, P, Mg, Mn, S, Fe, Zn, Na, B, Cu, Mo, Co, Al, Ba, Rb, Sr, Ti, Ni, Pb, Cs, Cd, Ce, Sn, La, Tl, Y, Hg, Ag) were used to investigate soil-plant relations, and to evaluate the element differentiation between different plants, or between foliage and twigs of the same plant...
May 17, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29783064/aerobic-resistance-or-combined-training-a-systematic-review-and-meta-analysis-of-exercise-to-reduce-cardiovascular-risk-in-adults-with-metabolic-syndrome
#11
Michael A Wewege, Jeanette M Thom, Kerry-Anne Rye, Belinda J Parmenter
BACKGROUND AND AIMS: Exercise is beneficial to individuals with metabolic syndrome (MetS). An understudied group, who represent the majority of the MetS population, are individuals who have not developed diabetes. This review examined aerobic, resistance and combined (aerobic + resistance) exercise for cardiovascular risk factors in MetS without diabetes. METHODS: Eight electronic databases were searched up to September 2017 for randomised controlled trials >4 weeks in duration that compared an exercise intervention to the non-exercise control in MetS without diabetes...
May 3, 2018: Atherosclerosis
https://www.readbyqxmd.com/read/29783053/biomineralization-mechanism-of-u-vi-induced-by-bacillus-cereus-12-2-the-role-of-functional-groups-and-enzymes
#12
Jian Zhang, Han Song, Zhi Chen, Shasha Liu, Yali Wei, Jingyi Huang, Chuling Guo, Zhi Dang, Zhang Lin
Current studies reveal that the biomineralization of U(VI) by anaerobes normally produces nano-sized U(IV) minerals that can easily re-migrate/re-oxidize, while the biomineralization of U(VI) by aerobes has been constrained because the general mechanism has not yet been fully characterized. The biomineralization of U(VI) by Bacillus cereus 12-2 was investigated in this work. The maximum biosorption capability of intact cells was 448.68 mg U/g biomass (dry weight) at pH 5, while a decrease over 60% was induced when phosphate, amino, and especially carboxyl groups were shielded...
May 10, 2018: Chemosphere
https://www.readbyqxmd.com/read/29783050/disruption-of-ergosterol-and-tryptophan-biosynthesis-as-well-as-cell-wall-integrity-pathway-and-the-intracellular-ph-homeostasis-lead-to-mono-2-ethylhexyl-phthalate-toxicity-in-budding-yeast
#13
Linghuo Jiang, Litong Wang, Tianshu Fang, Vassilios Papadopoulos
Endocrine disrupting chemicals (EDCs) are substances in the environment, food, and consumer products that interfere with hormone homeostasis, metabolism or reproduction in humans and animals. One such EDC, the plasticizer di-(2-ethylhexyl)-phthalate (DEHP), exerts its function through its principal bioactive metabolite, mono-(2-ethylhexyl)-phthalate (MEHP). To fully understand the effects of MEHP on cellular processes and metabolism as well as to assess the impact of genetic alteration on the susceptibility to MEHP-induced toxicity, we screened MEHP-sensitive mutations on a genome-scale in the eukaryotic model organism Saccharomyces cerevisiae...
May 15, 2018: Chemosphere
https://www.readbyqxmd.com/read/29783049/thermopuncture-for-the-diagnosis-monitoring-and-treatment-of-patients-with-type-2-diabetes
#14
Valery Muzhikov, Elena Vershinina, Ruslan Muzhikov, Kirill Nikitin
BACKGROUND: Type 2 diabetes (T2D) is a socially significant disease that affects millions of patients. There were an estimated 366 million people with this disease in 2011, and, according to the forecast, approximately 552 million will be affected by this disease in 2030. It is well known that the primary diagnosis and treatment of a patient with this disease are quite expensive. What should be done to make it possible for a patient to monitor his own state and provide treatment in his own home using telemedicine? To solve this problem, an alternative concept for the diagnosis, monitoring, and treatment at the basis of traditional Chinese medicine (TCM) combined with mathematical methods of data processing has been used...
May 18, 2018: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/29783046/bacterial-community-of-industrial-raw-sausage-packaged-in-modified-atmosphere-throughout-the-shelf-life
#15
Stefano Raimondi, Maria Rosaria Nappi, Tiziana Maria Sirangelo, Alan Leonardi, Alberto Amaretti, Alessandro Ulrici, Rudy Magnani, Chiara Montanari, Giulia Tabanelli, Fausto Gardini, Maddalena Rossi
Ten lots of industrial raw sausages in modified atmosphere (CO2 30%, O2 70%), produced in the same plant over 7 months, were analyzed at the day after production (S samples) and at the end of shelf life (E samples), after 12 days storage at 7 °C to simulate thermal abuse. Quality of the products was generally compromised by storage at 7 °C, with only 3 E samples without alterations. During the shelf life, the pH decreased for the accumulation of acetic and lactic acids. A few biogenic amines accumulated, remaining below acceptable limits...
April 28, 2018: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29783005/metal-accumulation-and-expression-of-genes-encoding-for-metallothionein-and-copper-transporters-in-a-chronically-exposed-wild-population-of-the-fish-hyphessobrycon-luetkenii
#16
Sandra Isabel Moreno Abril, Patrícia Gomes Costa, Adalto Bianchini
In the present study, metal (As, Cd, Cu, Fe, Mn, Pb and Zn) accumulation and expression of genes involved in metal metabolism (metallothioneins, ATP7A and CTR1) were evaluated in gills and muscle of the fish Hyphessobrycon luetkenii living in the João Dias creek, a site historically (~1870-1996) contaminated with a metal mixture associated with copper mining (Minas do Camaquã, southern Brazil). Fish were collected in a metal impacted site of the João Dias creek and kept in a cage at this site (PP fish) or translocated to a non-metal impacted reach of this creek (PC fish)...
May 18, 2018: Comparative Biochemistry and Physiology. Toxicology & Pharmacology: CBP
https://www.readbyqxmd.com/read/29782984/design-and-development-of-novel-hyaluronate-modified-nanoparticles-for-combo-delivery-of-curcumin-and-alendronate-fabrication-characterization-and-cellular-and-molecular-evidence-of-enhanced-bone-regeneration
#17
Jinlei Dong, Hnin Ei Thu, Mohammed A S Abourehab, Zahid Hussain
Osteoporosis is a medical condition of fragile bones with an increased susceptibility to bone fracture. Despite having availability of a wide range of pharmacological agents, prevalence of this metabolic disorder is continuously escalating. Owing to excellent biomedical achievements of nanomedicines in the last few decades, we aimed combo delivery of bone anti-resorptive agent, alendronate (ALN), and bone density enhancing drug, curcumin (CUR), in the form of polymeric nanoparticles. To further optimize the therapeutic efficacy, the prepared ALN/CUR nanoparticles were decorated with hyaluronic acid which is a well-documented biomacromolecule having exceptional bone regenerating potential...
May 18, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29782967/deficient-mitochondrial-biogenesis-in-il-2-activated-nk-cells-correlates-with-impaired-pgc1-%C3%AE-upregulation-in-elderly-humans
#18
Dante Miranda, Claudia Jara, Sophia Mejias, Viviana Ahumada, Marcelo Cortez-San Martin, Jorge Ibañez, Sandra Hirsch, Margarita Montoya
Immunosenescence has been described as age-associated changes in the immune function which are thought to be responsible for the increased morbidity with age. Human Natural Killer (NK) cells are a specialized heterogeneous subpopulation of lymphocytes involved in immune defense against tumor and microbial diseases. Interestingly, aging-related NK cell dysfunction is associated with features of aging such as tumor incidence, reduced vaccination efficacy, and short survival due to infection. It is known that NK cell effector functions are critically dependent on cytokines and metabolic activity...
May 18, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29782964/an-in-vitro-approach-for-prioritization-and-evaluation-of-chemical-effects-on-glucocorticoid-receptor-mediated-adipogenesis
#19
Jessica K Hartman, Tyler Beames, Bethany Parks, Daniel Doheny, Gina Song, Alina Efremenko, Miyoung Yoon, Briana Foley, Chad Deisenroth, Patrick D McMullen, Rebecca A Clewell
Rising obesity rates worldwide have socio-economic ramifications. While genetics, diet, and lack of exercise are major contributors to obesity, environmental factors may enhance susceptibility through disruption of hormone homeostasis and metabolic processes. The obesogen hypothesis contends that chemical exposure early in development may enhance adipocyte differentiation, thereby increasing the number of adipocytes and predisposing for obesity and metabolic disease. We previously developed a primary human adipose stem cell (hASC) assay to evaluate the effect of environmental chemicals on PPARG-dependent adipogenesis...
May 18, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29782941/dopamine-and-serotonin-metabolism-associated-with-morphine-reward-and-its-inhibition-with-buspirone-a-study-in-the-rat-striatum
#20
Darakhshan Jabeen Haleem, Shazia Nawaz, Tabinda Salman
Adaptations within the nucleus accumbens (NAc) and caudate nucleus (CN) dopamine neurotransmission are involved in behavioral sensitization and enhanced incentive motivation towards drug paired stimuli which lead to drug addiction. Serotonin (5-hydroxytryptamine; 5-HT) can modulate dopamine neurotransmission to reduce rewarding effects of drugs of abuse. A recent study from our laboratory shows that rewarding effects of morphine are inhibited in rats co-treated with buspirone. To understand the neurochemical mechanism involved in morphine addiction and its inhibition with buspirone, present study determines the effects of buspirone, morphine and their co-administration on the metabolism of serotonin and dopamine in the NAc and CN...
May 18, 2018: Pharmacology, Biochemistry, and Behavior
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