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https://www.readbyqxmd.com/read/28214919/grapevine-acclimation-to-water-deficit-the-adjustment-of-stomatal-and-hydraulic-conductance-differs-from-petiole-embolism-vulnerability
#1
Uri Hochberg, Andrea Giulia Bonel, Rakefet David-Schwartz, Asfaw Degu, Aaron Fait, Hervé Cochard, Enrico Peterlunger, Jose Carlos Herrera
Drought-acclimated vines maintained higher gas exchange compared to irrigated controls under water deficit; this effect is associated with modified leaf turgor but not with improved petiole vulnerability to cavitation. A key feature for the prosperity of plants under changing environments is the plasticity of their hydraulic system. In the present research we studied the hydraulic regulation in grapevines (Vitis vinifera L.) that were first acclimated for 39 days to well-watered (WW), sustained water deficit (SD), or transient-cycles of dehydration-rehydration-water deficit (TD) conditions, and then subjected to varying degrees of drought...
February 18, 2017: Planta
https://www.readbyqxmd.com/read/28208866/fatal-toxic-megacolon-in-a-child-of-hirschsprung-disease
#2
Shiwani R Garg, Pragati A Sathe, Annapurna C Taware, Ketaki M Surve
Hirschsprung disease (HD) in late childhood is uncommon and often undiagnosed or misdiagnosed. However, in a patient with Hirschsprung disease, of greater significance is the occurrence of life threatening enterocolitis. In its more severe form, this is associated with gross dilatation of the colon and profound toxaemia, the combination being termed toxic megacolon. Because of its relative rarity, we report a case of 10-year-old child who had a history of chronic constipation for nine years. He later developed complications and presented to the emergency department with toxic megacolon, a rare occurrence due to neglected constipation...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28206820/tolerance-to-x-rays-and-heavy-ions-fe-he-in-the-tardigrade-richtersius-coronifer-and-the-bdelloid-rotifer-mniobia-russeola
#3
K Ingemar Jönsson, Andrzej Wojcik
The aim of this study was to analyze tolerance to heavy ions in desiccated animals of the eutardigrade Richtersius coronifer and the bdelloid rotifer Mniobia russeola within the STARLIFE project. Both species were exposed to iron (Fe) and helium (He) ions at the Heavy Ion Medical Accelerator in Chiba (HIMAC) in Chiba, Japan, and to X-rays at the German Aerospace Center (DLR) in Cologne, Germany. Results show no effect of Fe and He on viability up to 7 days post-rehydration in both R. coronifer and M. russeola, while X-rays tended to reduce viability in R...
February 2017: Astrobiology
https://www.readbyqxmd.com/read/28205100/efficacy-of-oral-supplemental-hydration-for-the-prevention-of-contrast-induced-nephropathy-in-rats
#4
Tamaki Matsunami, Kazuo Hino, Rie Dosho, Sho Miyatake, Goro Ebisu, Ryohei Kuwatsuru
PURPOSE: To compare oral rehydration solution (ORS) with saline infusion for preventing contrast-induced nephropathy (CIN) in a rat model. MATERIALS AND METHODS: Adult male Sprague-Dawley rats (310-360 g) received intravenous indomethacin (10 mg/kg), N (G)-nitro-L-arginine methyl ester (10 mg/kg), and iohexol (10 mL/kg) to induce acute contrast-induced renal injury (CIN group); control rats received saline only. For hydration, rats received either continuous infusion (20 mL/kg/h) of saline or three oral doses (20 mL/kg each) of ORS...
February 15, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28204901/the-effect-of-hydration-status-on-the-measurement-of-lean-tissue-mass-by-dual-energy-x-ray-absorptiometry
#5
Clodagh M Toomey, William G McCormack, Phil Jakeman
PURPOSE: Athletes cycle between exercise and recovery. Exercise invokes changes in total body water from thermal sweating, muscle and hepatic glycogen depletion and metabolic water loss. Recovery from exercise results in rehydration, substrate repletion, and possible glycogen supercompensation. Such changes may corrupt the measurement of hydrated tissues, such as lean tissue mass (LTM), by dual-energy X-ray absorptiometry (DXA). The purpose of this study was to determine the effect of exercise and thermal dehydration and subsequent glycogen supercompensation on DXA-based measurement of body composition...
February 16, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28196414/polyelectrolyte-fiber-assembly-of-plant-derived-spider-silk-like-proteins
#6
Congyue Annie Peng, Julia A Russo, Todd A Lyda, William Richard Marcotte
Spider dragline silk is a proteinaceous material that combines superior toughness and biocompatibility, a promising bio-material. The distinct protein structure and the fiber formation process contribute to the superior toughness of dragline silk. Previously, we have produced recombinant spider silk-like proteins in transgenic tobacco that are readily purified from plant extracts. The plant-derived spidroin-like proteins consisted of native major ampullate spidroin 1 or spidroin 2 N- and C-termini flanking 8, 16, or 32 copies of their respective consensus block repeats (mini-spidroins)...
February 14, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28185211/clear-aqueous-topical-drop-of-triamcinolone-acetonide
#7
Hoang M Trinh, Kishore Cholkar, Mary Joseph, Xiaoyan Yang, Ashim K Mitra
The objective of this study was to develop a clear aqueous mixed nanomicellar formulation (NMF) of triamcinolone acetonide (TA) with a combination of nonionic surfactant hydrogenated castor oil 60 (HCO-60) and octoxynol-40 (Oc-40). In order to delineate the effects of drug-polymer interactions on entrapment efficiency (EE), loading efficiency (LE), and critical micellar concentration (CMC), a design of experiment (DOE) was performed to optimize the formulation. In this study, full-factorial design has been used with HCO-60 and OC-40 as independent variables...
February 9, 2017: AAPS PharmSciTech
https://www.readbyqxmd.com/read/28182858/effect-of-exercise-induced-dehydration-on-circulatory-markers-of-oxidative-damage-and-antioxidant-capacity
#8
Vincent P Georgescu, Tacito P Souza-Junior, Christian Behrens, Marcelo P Barros, Carlos Alves Bueno, Alan C Utter, Lisa S McAnulty, Steven R McAnulty
Dehydration is a common event associated with exercise. However, few studies have examined the effects of dehydration on plasma redox status in humans. Eighty-two athletes were recruited and had Baseline anthropometrics and blood samples obtained. Athletes then engaged in a dehydration protocol, training until 3% of pre-weight body mass was lost. Athletes returned to the lab and had Post-dehydration blood collected. Athletes then consumed an isotonic drink until pre-exercise body weight was reestablished. Blood was then recollected (1-h post-full rehydration (PFR))...
February 9, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28178991/an-ethnographic-study-of-salt-use-and-humoral-concepts-in-a-latino-farm-worker-community-in-california-s-central-valley
#9
Judith C Barker, Claudia Guerra, M Judy Gonzalez-Vargas, Kristin S Hoeft
BACKGROUND: This article reports on the use of domestic or table salt for its perceived health effects and healing properties in a Latino farmworker community. It explores how contemporary salt usage beliefs can be seen to have roots in long-standing humoral theories of medicine and health. METHODS: This qualitative investigation comprised 30 in-depth individual interviews and five focus groups conducted in Spanish with Mexican and Central American immigrants in one small city in California's Central Valley (N = 61 total participants)...
February 8, 2017: Journal of Ethnobiology and Ethnomedicine
https://www.readbyqxmd.com/read/28159258/influences-of-convective-and-vacuum-drying-on-the-quality-attributes-of-osmo-dried-pequi-caryocar-brasiliense-camb-slices
#10
Kamilla Soares de Mendonça, Jefferson L G Corrêa, João Renato de Jesus Junqueira, Marcelo Angelo Cirillo, Fabiano Vicente Figueira, Elisângela Elena Nunes Carvalho
Pequi is a fruit from Brazilian Cerrado. Despite its ascorbic acid and carotenoid contents, consumption of pequi is restricted to its region of origin. The goal of this work was to study drying of pequi slices (convective or vacuum drying at 40°C and 60°C) preceded or not preceded by osmotic pretreatment (sucrose solution concentrations of 40% and 60%). It was found that osmotic dehydration pretreatment substantially decreased the moisture content, duration of the drying process, and the volumetric ratio of the dried product...
June 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28154759/diarrhea-no-more-does-zinc-help-the-poor-evidence-on-the-effectiveness-of-programmatic-efforts-to-reach-poorest-in-delivering-zinc-and-ors-at-scale-in-up-and-gujarat-india
#11
Amnesty E LeFevre, Diwakar Mohan, Sarmila Mazumder, Laura L Lamberti, Sunita Taneja, Robert E Black, Christa L Fischer-Walker
BACKGROUND: India has the greatest burden of diarrhea in children under 5 years globally. The Diarrhea Alleviation through zinc and oral rehydration salts (ORS) Therapy program (2010-2014) sought to improve access to and utilization of zinc and ORS among children 2-59 months in Gujarat and Uttar Pradesh (UP), India, through public and private sector delivery channels. In this analysis, we present findings on program's effect in reducing child-health inequities. METHODS: Data from cross-sectional baseline and endline surveys were used to assess disparities in key outcomes across six dimensions: socioeconomic strata, gender, caregiver education, ethnicity and geography...
December 2016: Journal of Global Health
https://www.readbyqxmd.com/read/28152672/intraoperative-localization-of-rectal-tumors-using-liposomal-indocyanine-green
#12
Shlomo Magdassi, Shoshi Bar-David, Yael Friedman-Levi, Ehud Zigmond, Chen Varol, Guy Lahat, Joseph Klausner, Sara Eyal, Eran Nizri
BACKGROUND: Tumor localization may pose a significant challenge during minimally invasive rectal resection. Near-infrared (NIR) imaging can penetrate biological tissue and afford tumor localization from the external surface of the rectum. Our aim was to develop an NIR-based tool for rectal tumor imaging that can be administered intravenously. METHODS: We prepared indocyanine-green (ICG)-loaded liposomes by sonication. Liposomes were evaluated for their size and morphology...
February 1, 2017: Surgical Innovation
https://www.readbyqxmd.com/read/28150049/expert-s-comment-concerning-grand-rounds-case-entitled-rehydration-of-a-degenerated-disc-on-mri-synchronized-with-transition-of-modic-changes-following-stand-alone-xlif-by-k-kita-t-sakai-m-abe-y-takata-and-k-sairyo-eur-spine-j-2017-doi-10-1007-s00586-017-4945
#13
https://www.readbyqxmd.com/read/28149974/purls-a-more-palatable-alternative-to-oral-rehydration-therapy-for-kids
#14
REVIEW
Carin E Reust, James J Stevermer, Jennie B Jarrett
Parents no longer need to struggle to get their kids to drink electrolyte solutions during episodes of mild gastroenteritis; apple juice works just as well.
December 2016: Journal of Family Practice
https://www.readbyqxmd.com/read/28144734/rehydration-of-a-degenerated-disc-on-mri-synchronized-with-transition-of-modic-changes-following-stand-alone-xlif
#15
Kenichiro Kita, Toshinori Sakai, Mitsunobu Abe, Yoichiro Takata, Koichi Sairyo
Lumbar intervertebral disc degeneration (LDD) is known to be associated with low back pain (LBP) and leads to degenerative lumbar disease. LDD is considered to be irreversible, and no truly effective treatment that suppresses LDD or regenerates the degenerated disc has been established thus far. Here, we report the case of a 42-year-old woman with a 10-year history of persistent LBP. Magnetic resonance imaging (MRI) demonstrated degenerative changes (Pfirrmann classification: grade IV) in the L4-5 intervertebral disc with type I and III mixed Modic changes adjacent to the disc...
January 31, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28144138/in-vitro-determination-of-the-efficacy-of-scorpion-venoms-as-anti-cancer-agents-against-colorectal-cancer-cells-a-nano-liposomal-delivery-approach
#16
Abdulrahman K Al-Asmari, Zabih Ullah, Ali Al Balowi, Mozaffarul Islam
The use of liposomes in biological and medicinal sciences is a relatively new approach. The liposomal strategy greatly depends on the technological advancement in the formation of vesicles of various sizes and properties. In the current study, we encapsulated the venoms obtained from medically important scorpions such as Androctonus bicolor (AB), Androctonus crassicauda (AC), and Leiurus quinquestriatus (LQ). To begin with, our first and foremost aim was to prepare biocompatible and biodegradable nanovesicles...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28133564/osmolyte-regulation-by-tonebp-nfat5-during-anoxia-recovery-and-dehydration-rehydration-stresses-in-the-freeze-tolerant-wood-frog-rana-sylvatica
#17
Rasha Al-Attar, Yichi Zhang, Kenneth B Storey
BACKGROUND: The wood frog, Rana sylvatica, tolerates freezing as a means of winter survival. Freezing is considered to be an ischemic/anoxic event in which oxygen delivery is significantly impaired. In addition, cellular dehydration occurs during freezing because water is lost to extracellular compartments in order to promote freezing. In order to prevent severe cell shrinkage and cell death, it is important for the wood frog to have adaptive mechanisms for osmoregulation. One important mechanism of cellular osmoregulation occurs through the cellular uptake/production of organic osmolytes like sorbitol, betaine, and myo-inositol...
2017: PeerJ
https://www.readbyqxmd.com/read/28131342/lea-gene-expression-rna-stability-and-pigment-accumulation-in-three-closely-related-linderniaceae-species-differing-in-desiccation-tolerance
#18
Ilona Juszczak, Dorothea Bartels
Desiccation-tolerant plants (Craterostigma plantagineum and Lindernia brevidens) evolved a highly efficient strategies to prevent dehydration-induced irreversible damage. The protection system involves synthesis of LEA proteins, decrease of photosynthetic activity and activation of antioxidant systems. The regulation of these processes requires joint action of multiple proteins. Here, we present comparative analyses of accumulation of transcripts encoding components of the protection machinery, such as selected LEA proteins, enzymes of the chlorophyll degradation pathway and anthocyanin biosynthesis enzymes in total and polysomal RNA pools...
February 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28126906/optimizing-the-restoration-and-maintenance-of-fluid-balance-after-exercise-induced-dehydration
#19
Gethin Hywel Evans, Lewis John James, Susan Margaret Shirreffs, Ronald J Maughan
Hypohydration, or a body water deficit, is a common occurrence in athletes and recreational exercisers following the completion of an exercise session. For those who will undertake a further exercise session that day, it is important to replace water losses to avoid beginning the next exercise session hypohydrated and the potential detrimental effects on performance that this may lead to. The aim of this review is to provide an overview of the research related to factors that may affect post-exercise rehydration...
January 26, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28125229/robust-multifunctional-yttrium-based-metal-organic-frameworks-with-breathing-effect
#20
Ana D G Firmino, Ricardo F Mendes, Margarida M Antunes, Paula C Barbosa, Sérgio M F Vilela, Anabela A Valente, Filipe M L Figueiredo, João P C Tomé, Filipe A Almeida Paz
Phosphonate- and yttrium-based metal-organic frameworks (MOFs), formulated as [Y(H5btp)]·5.5H2O (1), [Y(H5btp)]·2.5H2O (2), (H3O)[Y2(H5btp)(H4btp)]·H2O (3), and [Y(H5btp)]·H2O·0.5(MeOH) (4), were prepared using a "green" microwave-assisted synthesis methodology which promoted the self-assembly of the tetraphosphonic organic linker [1,1'-biphenyl]-3,3',5,5'-tetrayltetrakis(phosphonic acid) (H8btp) with Y(3+) cations. This new family of functional materials, isolated in bulk quantities, exhibits a remarkable breathing effect...
January 26, 2017: Inorganic Chemistry
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