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https://www.readbyqxmd.com/read/28633112/perfluorinated-alkyl-substances-in-spanish-adults-geographical-distribution-and-determinants-of-exposure
#1
Mónica Bartolomé, Alejandrina Gallego-Picó, Francisco Cutanda, Olga Huetos, Marta Esteban, Beatriz Pérez-Gómez, Argelia Castaño
Per- and polyfluoroalkyl substances (PFAS) are widely found in humans and the environment. Their persistence, bioaccumulation and toxicity make them a source of increasing public health concern. In this study, we analyzed the concentrations and geographical distribution of six PFAS in the serum of 755 Spanish adults aged 18-65. The geometric mean concentrations (and P95 values) for PFOS (perfluoroctane sulfonate), PFOA (perfluorooctanoic acid), PFHxS (perfluorohexane sulfonate), PFNA (perfluorononanoic acid) and PFDA (perfluorodecanoic acid) were 7...
June 17, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28632474/evaluation-of-the-concurrent-use-of-dolutegravir-and-metformin-in-human-immunodeficiency-virus-infected-patients
#2
Anne Masich, Melissa E Badowski, Michelle D Liedtke, Patricia P Fulco
An analysis of the interaction between dolutegravir and metformin was conducted in the HIV ambulatory clinic setting. This was a multicenter, retrospective case series evaluating adult, HIV-infected patients concurrently prescribed dolutegravir and metformin. Historical electronic medical records were utilized to collect case-specific data. Laboratory parameters including serum creatinine (SCr), hemoglobin A1c (HgbA1c), plasma HIV RNA, CD4 cell count, and lactate were reviewed. Adverse drug reactions were assessed using patient-reported gastrointestinal intolerance and hypoglycemic symptoms...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28630618/perinatal-effects-of-scorpion-venoms-maternal-and-offspring-development
#3
REVIEW
Ana Leticia Coronado Dorce, Adriana do Nascimento Martins, Valquiria Abrão Coronado Dorce, Ana Leonor Abrahão Nencioni
Scorpion envenomation is a public health problem, especially in tropical and subtropical countries. Considering the high incidence of scorpionism in some areas, pregnant women and nursing mothers may be possible victims. Scorpion stings alter the release of neurotransmitters and some cytokines. These mediators act as organizers and programmers in the adequate formation of the nerves, and non-physiological concentrations of them during the brain organization originate disorders and diseases that can appear later in the life of the individual...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28627137/effect-of-sympathetic-nerve-blockade-on-low-frequency-oscillations-of-forearm-and-leg-skin-blood-flow-in-healthy-humans
#4
Gary J Hodges, Matthew M Mallette, Zachary T Martin, Andrew T Del Pozzi
Examine the effect of inhibiting sympathetic function on cutaneous vasomotion in the forearm and leg METHODS: Intradermal microdialysis fibres were placed in the forearm and leg, one as an untreated control (lactated Ringer's) the other perfused with bretylium tosylate to block sympathetic nerves. Skin blood flow was monitored using laser-Doppler flowmetry. Baseline was collected for 10 min before local skin temperature was increased to 42°C. Spectral analysis was performed using a Morlet wavelet RESULTS: Bretylium tosylate increased skin blood flow during baseline in the forearm (d=1...
June 19, 2017: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
https://www.readbyqxmd.com/read/28626065/metabolic-reprogramming-commits-differentiation-of-human-cd27-igd-b-cells-to-plasmablasts-or-cd27-igd-cells
#5
Masataka Torigoe, Shigeru Iwata, Shingo Nakayamada, Kei Sakata, Mingzeng Zhang, Maiko Hajime, Yusuke Miyazaki, Manabu Narisawa, Koji Ishii, Hirotaka Shibata, Yoshiya Tanaka
B cells play a crucial role in the pathogenesis of autoimmune diseases, such as systemic lupus erythematosus (SLE). However, the relevance of the metabolic pathway in the differentiation of human B cell subsets remains unknown. In this article, we show that the combination of CpG/TLR9 and IFN-α markedly induced the differentiation of CD27(+)IgD(+) unswitched memory B cells into CD27(hi)CD38(hi) plasmablasts. The response was accompanied by mammalian target of rapamycin complex 1 (mTORC1) activation and increased lactate production, indicating a shift to glycolysis...
June 16, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28624442/loss-of-fructose-1-6-bisphosphatase-induces-glycolysis-and-promotes-apoptosis-resistance-of-cancer-stem-like-cells-an-important-role-in-hexavalent-chromium-induced-carcinogenesis
#6
Jin Dai, Yanli Ji, Wei Wang, Donghern Kim, Leonard Yenwong Fai, Lei Wang, Jia Luo, Zhuo Zhang
Hexavalent chromium (Cr(VI)) compounds are confirmed human carcinogens for lung cancer. Our previous studies has demonstrated that chronic exposure of human bronchial epithelial BEAS-2B cells to low dose of Cr(VI) causes malignant cell transformation. The acquisition of cancer stem cell-like properties is involved in the initiation of cancers. The present study has observed that a small population of cancer stem-like cells (BEAS-2B-Cr-CSC) exists in the Cr(VI)-transformed cells (BEAS-2B-Cr). Those BEAS-2B-Cr-CSC exhibit extremely reduced capability of generating reactive oxygen species (ROS) and apoptosis resistance...
June 14, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28624279/the-use-of-national-level-data-to-describe-trends-in-intramammary-antimicrobial-usage-on-irish-dairy-farms-from-2003-to-2015
#7
Simon J More, Tracy A Clegg, Finola McCoy
In this study, we used national-level data to describe trends in on-farm intramammary antimicrobial usage in Ireland from 2003 to 2015. We calculated actual sales of intramammary tubes and the quantity of active substance sold, by year, product type [lactation or dry cow therapy (DCT)], antimicrobial group, World Health Organization antimicrobial classification, and from 2009 to 2015, prescribing route. We also estimated on-farm usage of lactation and dry cow intramammary antimicrobials using defined daily dose (DDDvet) and defined course dose (DCDvet) calculations, and dry cow coverage...
June 14, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28623673/a-prominent-lactate-peak-as-a-potential-key-magnetic-resonance-spectroscopy-mrs-feature-of-progressive-multifocal-leukoencephalopathy-pml-spectrum-pattern-observed-in-three-patients
#8
Duško Kozić, Mladen Bjelan, Jasmina Boban, Jelena Ostojić, Vesna Turkulov, Aleksandar Todorović, Slobodanka Lemajić-Komazec, Snežana Brkić
Progressive multifocal leukoencephalopathy (PML) is a rare, often fatal, opportunistic infection, associated with demyelinating process. PML is caused by John Cunningham (JC) polyomavirus, and predominantly involves patients with human immunodeficiency virus (HIV) disease or other immunocompromised conditions. The purpose of this report was to determine the role of magnetic resonance spectroscopy (MRS) in establishing the diagnosis of PML. MRS with long and short echo time was performed in two patients with PML associated with HIV infection and in one PML patient associated with chronic lymphocytic leukemia...
June 17, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28622786/dairy-cow-disability-weights
#9
Craig S McConnel, Ashleigh A McNeil, Joleen C Hadrich, Jason E Lombard, Franklyn B Garry, Jane Heller
Over the past 175 years, data related to human disease and death have progressed to a summary measure of population health, the Disability-Adjusted Life Year (DALY). As dairies have intensified there has been no equivalent measure of the impact of disease on the productive life and well-being of animals. The development of a disease-adjusted metric requires a consistent set of disability weights that reflect the relative severity of important diseases. The objective of this study was to use an international survey of dairy authorities to derive disability weights for primary disease categories recorded on dairies...
August 1, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28622713/mir-142-5p-promotes-development-of-colorectal-cancer-through-targeting-sdhb-and-facilitating-generation-of-aerobic-glycolysis
#10
Shaojun Liu, Zhiming Xiao, Feiyan Ai, Fen Liu, Xiong Chen, Ke Cao, Weiguo Ren, Xuemei Zhang, Peng Shu, Decai Zhang
Aberrant expression of miRNAs contributes to the development of human malignancies. A recent study revealed that miR-142-5p is increased in the serum of colorectal cancer (CRC) patients compared to health people. Using starBase v2.0, we found that succinate dehydrogenase-B (SDHB) is a potential target of miR-142-5p, while SDHB is negatively correlated to cancer development through regulating energetic metabolism. Based on these information, this study further examined the expression profiles of miR-142-5p and SDHB in CRC tissues and cell lines using PCR and Western blotting...
June 12, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28622665/non-invasive-in-situ-measurement-of-blood-lactate-using-microwave-sensors
#11
Alex Mason, Olga Korostynska, Julien Louis, Luis Eduardo Cordova-Lopez, Badr Abdullah, Jacob Greene, Rob Connell, John Hopkins
GOAL: This paper reports the use of a novel electromagnetic sensor technique for real-time non-invasive monitoring of blood lactate in human subjects. METHODS: The technique was demonstrated on 34 participants who undertook a cycling regime, with rest period before and after, to produce a rising and falling lactate response curve. Sensors attached to the arm and legs of participants gathered spectral data, blood samples were measured using a Lactate Pro V2, as well as temperature and heart rate data were collected...
June 14, 2017: IEEE Transactions on Bio-medical Engineering
https://www.readbyqxmd.com/read/28622333/acute-40-exchange-transfusion-with-hemoglobin-vesicles-in-a-mouse-pneumonectomy-model
#12
Mitsutomo Kohno, Tatsuhiko Ikeda, Ryo Hashimoto, Yotaro Izumi, Masazumi Watanabe, Hirohisa Horinouchi, Hiromi Sakai, Koichi Kobayashi, Masayuki Iwazaki
OBJECTIVES: Hemoglobin vesicles (HbVs) function as a red blood cell (RBC) substitute and are composed of purified hemoglobin encapsulated in a phospholipid bilayer membrane. The performance of HbVs as a substitute for RBC transfusions was examined in a mouse model of pneumonectomy following acute 40% exchange-transfusion with HbVs. METHODS: Before performing left pneumonectomies, 40% of the blood volume of mice was replaced with a) lactated Ringer's solution (control), b) 5% recombinant human serum albumin (rHSA), c) mouse RBCs shed in rHSA (mRBCs/rHSA), or d) HbV suspended in rHSA (HbV/rHSA)...
2017: PloS One
https://www.readbyqxmd.com/read/28621839/evaluation-of-hemodynamic-performance-of-a-combined-ecls-and-crrt-circuit-in-seven-positions-with-a-simulated-neonatal-patient
#13
Elizabeth Profeta, Kaitlyn Shank, Shigang Wang, Christian O'Connor, Allen R Kunselman, Karl Woitas, John L Myers, Akif Ündar
As it is common for patients treated with extracorporeal life support (ECLS) to subsequently require continuous renal replacement therapy (CRRT), and neonatal patients encounter limitations due to lack of access points, inclusion of CRRT in the ECLS circuit could provide advanced treatment for this population. The objective of this study was to evaluate an alternative neonatal ECLS circuit containing either a Maquet RotaFlow centrifugal pump or Maquet HL20 roller pump with one of seven configurations of CRRT using the Prismaflex 2000 System...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28620355/role-of-the-vasopressin-apelin-balance-and-potential-use-of-metabolically-stable-apelin-analogs-in-water-metabolism-disorders
#14
REVIEW
Adrien Flahault, Pierre Couvineau, Rodrigo Alvear-Perez, Xavier Iturrioz, Catherine Llorens-Cortes
Apelin, a (neuro)vasoactive peptide, plays a prominent role in controlling body fluid homeostasis and cardiovascular functions. In animal models, experimental data demonstrate that intracerebroventricular injection of apelin into lactating rats inhibits the phasic electrical activity of arginine vasopressin (AVP) neurons, reduces plasma AVP levels, and increases aqueous diuresis. In the kidney, apelin increases diuresis by increasing the renal microcirculation and by counteracting the antidiuretic effect of AVP at the tubular level...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28614084/propofol-affects-neurodegeneration-and-neurogenesis-by-regulation-of-autophagy-via-effects-on-intracellular-calcium-homeostasis
#15
Hui Qiao, Yun Li, Zhendong Xu, Wenxian Li, Zhijian Fu, Yuezhi Wang, Alexander King, Huafeng Wei
BACKGROUND: In human cortical neural progenitor cells, we investigated the effects of propofol on calcium homeostasis in both the ryanodine and inositol 1,4,5-trisphosphate calcium release channels. We also studied propofol-mediated effects on autophagy, cell survival, and neuro- and gliogenesis. METHODS: The dose-response relationship between propofol concentration and duration was studied in neural progenitor cells. Cell viability was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and lactate dehydrogenase release assays...
June 14, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28611760/bacterial-composition-and-diversity-in-breast-milk-samples-from-mothers-living-in-taiwan-and-mainland-china
#16
Shiao-Wen Li, Koichi Watanabe, Chih-Chieh Hsu, Shiou-Huei Chao, Zheng-Hua Yang, Yan-Jun Lin, Chun-Chiang Chen, Yong-Mei Cao, Hsuan-Cheng Huang, Chuan-Hsiung Chang, Ying-Chieh Tsai
Human breast milk is widely recognized as the best source of nutrients for healthy growth and development of infants; it contains a diverse microbiota. Here, we characterized the diversity of the microbiota in the breast milk of East Asian women and assessed whether delivery mode influenced the microbiota in the milk of healthy breast-feeding mothers. We profiled the microbiota in breast milk samples collected from 133 healthy mothers in Taiwan and in six regions of mainland China (Central, East, North, Northeast, South, and Southwest China) by using 16S rRNA pyrosequencing...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28611296/does-the-1h-nmr-plasma-metabolome-reflect-the-host-tumor-interactions-in-human-breast-cancer
#17
Vincent Richard, Raphaël Conotte, David Mayne, Jean-Marie Colet
Breast cancer (BC) is the most common diagnosed cancer and the leading cause of cancer death in women worldwide. There is an obvious need for a better understanding of BC biology. Alterations in the serum metabolome of BC patients have been identified but their clinical significance remains elusive. We evaluated by 1H-Nuclear Magnetic Resonance (1H-NMR) spectroscopy, filtered plasma metabolome of 50 early (EBC) and 15 metastatic BC (MBC) patients. Using Principal Component Analysis, Partial Least-Squares Discriminant Analysis and Hierarchical Clustering we show that plasma levels of glucose, lactate, pyruvate, alanine, leucine, isoleucine, glutamate, glutamine, valine, lysine, glycine, threonine, tyrosine, phenylalanine, acetate, acetoacetate, β-hydroxy-butyrate, urea, creatine and creatinine are modulated across patients clusters...
May 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28609176/mothers-of-infants-with-congenital-diaphragmatic-hernia-describe-breastfeeding-in-the-neonatal-intensive-care-unit-as-long-as-it-s-my-milk-i-m-happy
#18
Elizabeth B Froh, Janet A Deatrick, Martha A Q Curley, Diane L Spatz
BACKGROUND: Very little is known about the breastfeeding experience of mothers of infants born with congenital anomalies and cared for in the neonatal intensive care unit (NICU). Often, studies related to breastfeeding and lactation in the NICU setting are focused on the mothers of late preterm, preterm, low-birth-weight, and very-low-birth-weight infants. Congenital diaphragmatic hernia (CDH) is an anatomic malformation of the diaphragm and affects 1 in every 2,000 to 4,000 live births...
June 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28607147/loss-of-the-clock-protein-per2-shortens-the-erythrocyte-life-span-in-mice
#19
Qi Sun, Yue Zhao, Yunxia Yang, Xiao Yang, Minghui Li, Xi Xu, Dan Weng, Junsong Wang, Jianfa Zhang
Cell proliferation and release from the bone marrow have been demonstrated to be controlled by circadian rhythms in both humans and mice. However, it is unclear whether local circadian clocks in the bone marrow influence physiological functions and life span of erythrocytes. Here, we report that loss of the clock gene Per2 significantly decreased erythrocyte life span. Mice deficient in Per2 were more susceptible to acute stresses in the erythrocytes, becoming severely anemic upon phenylhydrazine, osmotic, and H2O2 challenges...
June 12, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28606696/targeted-gene-knockdown-validates-the-essential-role-of-lactate-dehydrogenase-in-cryptosporidium-parvum
#20
William H Witola, Xuejin Zhang, Chi Yong Kim
Cryptosporidium parvum is a zoonotic protozoan that can cause a life-threatening gastrointestinal syndrome in children and in immunocompromised adults. Currently, the only approved drug for treatment of Cryptosporidium infections in humans is nitazoxanide, but it is not effective in immunocompromised individuals or in children with malnutrition. This is compounded by the lack of genetic methods for studying and validating potential drug targets in the parasite. Therefore, in this study, we endeavoured to adapt the use of a phosphorodiamidate morpholino oligomer (morpholino) antisense approach to develop a targeted gene knockdown assay for use in C...
June 9, 2017: International Journal for Parasitology
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