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https://www.readbyqxmd.com/read/29352397/bio-prospectus-of-cadmium-bioadsorption-by-lactic-acid-bacteria-to-mitigate-health-and-environmental-impacts
#1
REVIEW
Narendra Kumar, Vandna Kumari, Chand Ram, Kiran Thakur, Sudhir Kumar Tomar
Foodstuffs and water are the key sources of cadmium biomagnifiaction. The available strategies to mitigate this problem are unproductive and expensive for practical large-scale use. Biological decontamination of metals through environmental microbes has been known since long time, whereas lactic acid bacteria (LAB) have not been extensively studied for this purpose. The LAB are known for maintaining homeostasis and suppression of pathogens in humans and animals. They also play a vital role in bioremediation of certain heavy metals...
January 19, 2018: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29351853/cardiac-biomarkers-as-sensitive-tools-to-evaluate-the-impact-of-xenobiotics-on-amphibians-the-effects-of-anionic-surfactant-linear-alkylbenzene-sulfonate-las
#2
Monica Jones-Costa, Lilian Franco-Belussi, Felipe Augusto Pinto Vidal, Nathália Penteado Gongora, Luciano Mendes Castanho, Cleoni Dos Santos Carvalho, Elaine Cristina Mathias Silva-Zacarin, Fabio Camargo Abdalla, Iolanda Cristina Silveira Duarte, Classius De Oliveira, Cristiane Ronchi de Oliveira, Raquel Fernanda Salla
Amphibian populations have been experiencing a drastic decline worldwide. Aquatic contaminants are among the main factors responsible for this decline, especially in the aquatic environment. The linear alkylbenzene sulfonate (LAS) is of particular concern, since it represents 84% of the anionic surfactants' trade. In Brazil, the maximal LAS concentration allowed in fresh waters is 0.5mgL-1, but its potential harmful effects in amphibians remain unknown. Therefore, this study aimed to analyze the effects of a sublethal concentration of LAS (0...
January 16, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29351490/significant-improvement-in-cardiometabolic-health-in-healthy-non-obese-individuals-during-caloric-restriction-induced-weight-loss-and-weight-loss-maintenance
#3
Jasper Most, L Anne Gilmore, Steven R Smith, Hongmei Han, Eric Ravussin, Leanne M Redman
Caloric restriction (CR) triggers benefits for healthspan including decreased risk of cardiometabolic disease. In an ancillary study to CALERIE 2, a 24-month 25% CR study, we assessed the cardiometabolic effects of CR in 53 non-obese (BMI: 22-28 kg/m2) men (n=17) and women (n=36). According to the energy-balance method (doubly labeled water and changes in body energy stores), the 25% CR intervention (n=34) produced 17{plus minus}1% (mean{plus minus}SE) and 14{plus minus}1% CR after 12 and 24 months (M12, M24), resulting in significant weight loss (M12: -9{plus minus}0...
December 12, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351482/suppression-of-gut-dysbiosis-reverses-western-diet-induced-vascular-dysfunction
#4
Micah L Battson, Dustin M Lee, Dillon K Jarrell, Shuofei Hou, Kayl E Ecton, Tiffany L Weir, Christopher L Gentile
OBJECTIVE: Vascular dysfunction represents a critical pre-clinical step in the development of cardiovascular disease. We examined the role of the gut microbiota in the development of obesity-related vascular dysfunction. Approach and Results. Male C57BL/6J mice were fed either a standard diet (SD) (n=12) or western diet (WD) (n=24) for 5m, after which time, WD mice were randomized to receive either un-supplemented drinking water or water containing a broad-spectrum antibiotic cocktail (WD+Abx) (n=12/group) for 2m...
December 26, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351479/using-2h-water-to-quantify-the-contribution-of-de-novo-palmitate-synthesis-in-plasma-enabling-back-to-back-studies
#5
Stephen F Previs, Kithsiri Herath, Andrea R Nawrocki, Carlos G Rodriguez, Deborah Slipetz, Sheo B Singh, Ling Kang, Gowri Bhat, Thomas P Roddy, Stacey Conarello, Jenna Terebetski, Mark D Erion, David E Kelley
An increased contribution of de novo lipogenesis (DNL) may play a role in cases of dyslipidemia and adipose accretion, this suggests that inhibition of fatty acid synthesis may affect clinical phenotypes. Since it is not clear whether modulation of one step in the lipogenic pathway is more important than another, the use of tracer methods can provide a deeper level of insight regarding the control of metabolic activity. Although [2H]water is generally considered a reliable tracer for quantifying DNL in vivo (it yields a homogenous and quantifiable precursor labeling), the relatively long half-life of body water is thought to limit the ability of performing repeat studies in the same subjects; this can create a bottleneck in the development and evaluation of novel therapeutics for inhibiting DNL...
January 2, 2018: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29351422/body-mass-specific-na-k-atpase-activity-in-the-medullary-thick-ascending-limb-implications-for-species-dependent-urine-concentrating-mechanisms
#6
Mun Aw, Tamara M Armstrong, C Michele Nawata, Sarah N Bodine, Jeeeun J Oh, Guojun Wei, Kristen K Evans, Mohammad Shahidullah, Timo Rieg, Thomas L Pannabecker
In general, mammalian whole body mass-specific metabolic rate correlates positively with maximal urine concentration (Umax) irrespective of whether or not the species have adapted to arid or mesic habitat. Accordingly, we hypothesized that the thick ascending limb (TAL) of a rodent with markedly higher whole body mass-specific metabolism than rat exhibits a substantially higher TAL metabolic rate as estimated by Na+, K+-ATPase activity and Na+, K+-ATPase α1 gene and protein expression. The kangaroo rat inner stripe of the outer medulla exhibits significantly higher mean Na+, K+-ATPase activity (~70%) compared to 2 rat strains (Sprague-Dawley and Munich-Wistar), extending prior studies showing rat activity exceeds rabbit...
January 3, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29351420/fourth-ventricular-tsh-induces-satiety-and-increases-body-temperature-in-rats
#7
Ulrika Smedh, Karen A Scott, Timothy H Moran
Besides its well-known action to stimulate thyroid hormone release, Thyrotropin mRNA is expressed within the brain and Thyrotropin and its receptor have been shown to be present in brain areas that control feeding and gastrointestinal function. Here, the hypothesis that Thyrotropin acts on receptors in the dorsal hindbrain to alter food intake and/or gastric function was tested. Fourth ventricular injections of Thyrotropin (0.06, 0.6 and 6.0 µg) were given to rats with chronic intracerebroventricular cannulas aimed at the fourth ventricle...
January 3, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29351316/dexmedetomidine-reduces-lipopolysaccharide-induced-neuroinflammation-sickness-behavior-and-anhedonia
#8
Ching-Hua Yeh, Liang-Po Hsieh, Ming-Chung Lin, Tsui-Shan Wei, Hui-Ching Lin, Chia-Cheng Chang, Chung-Hsi Hsing
BACKGROUND: Peripheral innate immune response may induce sickness behavior through activating microglia, excessive cytokines production, and neuroinflammation. Dexmedetomidine (Dex) has anti-inflammatory effect. We investigated the effects of Dex on lipopolysaccharide (LPS)-induced neuroinflammation and sickness behavior in mice. MATERIALS AND METHODS: BALB/c mice were intraperitoneally (i.p.) injected with Dex (50 ug/kg) or vehicle. One hour later, the mice were injected (i...
2018: PloS One
https://www.readbyqxmd.com/read/29351203/ttx-bearing-planocerid-flatworm-platyhelminthes-acotylea-in-the-ryukyu-islands-japan
#9
Hiroyuki Ueda, Shiro Itoi, Haruo Sugita
Polyclad flatworms comprise a highly diverse and cosmopolitan group of marine turbellarians. Although some species of the genera Planocera and Stylochoplana are known to be tetrodotoxin (TTX)-bearing, there are few new reports. In this study, planocerid-like flatworm specimens were found in the sea bottom off the waters around the Ryukyu Islands, Japan. The bodies were translucent with brown reticulate mottle, contained two conical tentacles with eye spots clustered at the base, and had a slightly frilled-body margin...
January 19, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29350757/hepatoprotective-effects-of-sophoricoside-against-fructose-induced-liver-injury-via-regulating-lipid-metabolism-oxidation-and-inflammation-in-mice
#10
Wenfeng Li, Yalong Lu
The dried fruit of Sophora japonica L. is a traditional Chinese herb tea rich in sophoricoside that is an isoflavone glycoside. The aim of current study was to investigate the hepatic protective effect of sophoricoside in high fructose (HF) diet fed mice. Healthy male mice were fed 30% fructose water and treated 80 and 160 mg/kg·bw sophoricoside continuously for 8 wk. Our data showed that administration of sophoricoside at 80 and 160 mg/kg·bw observably decreased the body weight and liver weight in HF-fed mice...
January 19, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29350399/biological-functions-of-elabela-a-novel-endogenous-ligand-of-apj-receptor
#11
REVIEW
Jin Xu, Linxi Chen, Zhisheng Jiang, Lanfang Li
The G protein-coupled receptor APJ and its cognate ligand, apelin, are widely expressed throughout human body. They are implicated in different key physiological processes such as angiogenesis, cardiovascular functions, fluid homeostasis and energy metabolism regulation. Recently, a new endogenous peptidic ligand of APJ, named Elabela, has been identified and shown to play a crucial role in embryonic development. In addition, increasing evidences show that Elabela is also intimate associated with a large number of physiological processes in adulthood...
January 19, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29350264/linking-muscle-metabolism-and-functional-variation-to-field-swimming-performance-in-bluegill-sunfish-lepomis-macrochirus
#12
David J Ellerby, Shauna Cyr, Angela X Han, Mika Lin, Lloyd A Trueblood
Skeletal muscle has diverse mechanical roles during locomotion. In swimming fish, power-producing muscles work in concert with the accessory muscles of the fins which augment and control power transfer to the water. Although fin muscles represent a significant proportion of the locomotor muscle mass, their physiological properties are poorly characterized. To examine the relationship between muscle metabolism and the differing mechanical demands placed on distinct muscle groups, we quantified the aerobic and glycolytic capacities of the myotomal, pectoral and caudal muscles of bluegill sunfish...
January 19, 2018: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/29350197/a-three-dimensional-correction-method-for-predicting-the-readings-of-a-pinpoint-chamber-on-the-cyberknife-sup-%C3%A2-sup-m6%C3%A2-machine
#13
Yongqian Zhang, Edward Brandner, Cihat Ozhasoglu, Ron Lalonde, Dwight E Heron, M Saiful Huq
The use of small fields in radiation therapy techniques has increased substantially in particular in stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT). However, as field size reduces further still, the response of the detector changes more rapidly with field size, and the effects of measurement uncertainties become increasingly significant. This work presents a novel 3D dose volume-to-point correction method to predict the readings of a 0.015cc PinPoint chamber (PTW 31014) for both small static-fields and composite-field dosimetry formed by fixed cones on the CyberKnife® M6™ machine...
January 19, 2018: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29350174/automated-peritoneal-dialysis-could-rapidly-improve-left-heart-failure-by-increasing-peritoneal-dialysis-ultrafiltration-a-single-center-observational-clinical-study%C3%A2
#14
Cong Yang, Jixing Liu, Nirong Gong, Yanhong Lin, Yanfang He, Zhixiu Yi, Liping Hu, Jianping Jiang, Jun Ai
Ultrafiltration failure (UFF) is a major cause of water retention, left heart failure (LHF), and peritoneal dialysis (PD) failure. Automated peritoneal dialysis (APD) might have better ultrafiltration (UF) than continuous ambulatory peritoneal dialysis (CAPD). Here, we have studied whether short-term APD could increase UF and improve LHF. 47 patients were included in this study from December 1, 2015, to January 1, 2017. All patients had been treated with CAPD before they came to our center and were treated with APD in the hospital...
January 19, 2018: Clinical Nephrology
https://www.readbyqxmd.com/read/29349297/organic-matter-in-extraterrestrial-water-bearing-salt-crystals
#15
Queenie H S Chan, Michael E Zolensky, Yoko Kebukawa, Marc Fries, Motoo Ito, Andrew Steele, Zia Rahman, Aiko Nakato, A L David Kilcoyne, Hiroki Suga, Yoshio Takahashi, Yasuo Takeichi, Kazuhiko Mase
Direct evidence of complex prebiotic chemistry from a water-rich world in the outer solar system is provided by the 4.5-billion-year-old halite crystals hosted in the Zag and Monahans (1998) meteorites. This study offers the first comprehensive organic analysis of the soluble and insoluble organic compounds found in the millimeter-sized halite crystals containing brine inclusions and sheds light on the nature and activity of aqueous fluids on a primitive parent body. Associated with these trapped brines are organic compounds exhibiting wide chemical variations representing organic precursors, intermediates, and reaction products that make up life's precursor molecules such as amino acids...
January 2018: Science Advances
https://www.readbyqxmd.com/read/29348925/volume-estimates-in-chronic-hemodialysis-patients-by-the-watson-equation-and-bioimpedance-spectroscopy-and-the-impact-on-the-kt-vurea-calculation
#16
Nazanin Noori, Ron Wald, Arti Sharma Parpia, Marc B Goldstein
Background: Accurate assessment of total body water (TBW) is essential for the evaluation of dialysis adequacy (Kt/Vurea). The Watson formula, which is recommended for the calculation of TBW, was derived in healthy volunteers thereby leading to potentially inaccurate TBW estimates in maintenance hemodialysis recipients. Bioimpedance spectroscopy (BIS) may be a robust alternative for the measurement of TBW in hemodialysis recipients. Objectives: The primary objective of this study was to evaluate the accuracy of Watson formula-derived TBW estimates as compared with TBW measured with BIS...
2018: Canadian Journal of Kidney Health and Disease
https://www.readbyqxmd.com/read/29348734/energy-spectrum-and-dose-enhancement-due-to-the-depth-of-the-lipiodol-position-using-flattened-and-unflattened-beams
#17
Daisuke Kawahara, Shuichi Ozawa, Akito Saito, Tomoki Kimura, Tatsuhiko Suzuki, Masato Tsuneda, Sodai Tanaka, Kazunari Hioki, Takeo Nakashima, Yoshimi Ohno, Yuji Murakami, Yasushi Nagata
Aim: Lipiodol was used for stereotactic body radiotherapy combining trans arterial chemoembolization. Lipiodol used for tumour seeking in trans arterial chemoembolization remains in stereotactic body radiation therapy. In our previous study, we reported the dose enhancement effect in Lipiodol with 10× flattening-filter-free (FFF). The objective of our study was to evaluate the dose enhancement and energy spectrum of photons and electrons due to the Lipiodol depth with flattened (FF) and FFF beams...
January 2018: Reports of Practical Oncology and Radiotherapy
https://www.readbyqxmd.com/read/29348622/a-novel-method-of-utilizing-skinfolds-and-bioimpedance-for-determining-body-fat-percentage-via-a-field-based-three-compartment-model
#18
Michael R Esco, Brett S Nickerson, Michael V Fedewa, Jordan R Moon, Ronald L Snarr
BACKGROUND/OBJECTIVES: The purpose was to determine if skinfolds (SF) and bioelectrical impedance analysis (BIA) could provide accurate estimates of body volume (BV) and total body water (TBW), respectively, for use in a 3-compartment (3-C) model to estimate percent body fat (BF%) when compared to laboratory derived measures. SUBJECTS/METHODS: A sample of sixty-four men (age = 22.9 ± 5.4 years) and 59 women (age = 21.6 ± 4.3 years) participated in the study...
January 18, 2018: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29346938/equilibrium-position-of-a-rigid-sphere-in-a-turbulent-jet-a-problem-of-elastic-reconfiguration
#19
T Barois, P D Huck, M Bourgoin, R Volk
The position of floating spheres trapped within an immersed turbulent water jet is investigated. Using the self-similarity properties of the jet velocity profile, the equilibrium problem is formulated in a rescaled space where the sphere is static and deformable. This approach is found to be related to a problem of elastic reconfiguration where elasticity arises here from the geometry of the flow instead of an actual deformation of a body.
September 2017: Physical Review. E
https://www.readbyqxmd.com/read/29346330/formulation-of-poloxamers-for-drug-delivery
#20
REVIEW
Andrew M Bodratti, Paschalis Alexandridis
Poloxamers, also known as Pluronics®, are block copolymers of poly(ethylene oxide) (PEO) and poly(propylene oxide) (PPO), which have an amphiphilic character and useful association and adsorption properties emanating from this. Poloxamers find use in many applications that require solubilization or stabilization of compounds and also have notable physiological properties, including low toxicity. Accordingly, poloxamers serve well as excipients for pharmaceuticals. Current challenges facing nanomedicine revolve around the transport of typically water-insoluble drugs throughout the body, followed by targeted delivery...
January 18, 2018: Journal of Functional Biomaterials
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