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https://www.readbyqxmd.com/read/27923571/a-simple-dried-blood-spot-method-for-in-vivo-measurement-of-ureagenesis-by-gas-chromatography-mass-spectrometry-using-stable-isotopes
#1
Gabriella Allegri, Sereina Deplazes, Hiu Man Viecelli, Déborah Mathis, Ralph Fingerhut, Johannes Häberle, Beat Thöny
BACKGROUND: Clinical management of inherited or acquired hyperammonemia depends mainly on the plasma ammonia level which is not a reliable indicator of urea cycle function as its concentrations largely fluctuate. The gold standard to assess ureagenesis in vivo is the use of stable isotopes. METHODS: Here we developed and validated a simplified in vivo method with [(15)N]ammonium chloride ([(15)N]H4Cl) as a tracer. Non-labeled and [(15)N]urea were quantified by GC-MS after extraction and silylation...
December 3, 2016: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/27922056/identification-and-functional-analysis-of-long-intergenic-noncoding-rna-genes-in-porcine-pre-implantation-embryonic-development
#2
Jingyu Li, Zhengling Gao, Xingyu Wang, Hongbo Liu, Yan Zhang, Zhonghua Liu
Genome-wide transcriptome studies have identified thousands of long intergenic noncoding RNAs (lincRNAs), some of which play important roles in pre-implantation embryonic development (PED). Pig is an ideal model for reproduction, however, porcine lincRNAs are still poorly characterized and it is unknown if they are associated with porcine PED. Here we reconstructed 195,531 transcripts in 122,007 loci, and identified 7,618 novel lincRNAs from 4,776 loci based on published RNA-seq data. These lincRNAs show low exon number, short length, low expression level, tissue-specific expression and cis-acting, which is consistent with previous reports in other species...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27920780/genome-enabled-prediction-models-for-yield-related-traits-in-chickpea
#3
Manish Roorkiwal, Abhishek Rathore, Roma R Das, Muneendra K Singh, Ankit Jain, Samineni Srinivasan, Pooran M Gaur, Bharadwaj Chellapilla, Shailesh Tripathi, Yongle Li, John M Hickey, Aaron Lorenz, Tim Sutton, Jose Crossa, Jean-Luc Jannink, Rajeev K Varshney
Genomic selection (GS) unlike marker-assisted backcrossing (MABC) predicts breeding values of lines using genome-wide marker profiling and allows selection of lines prior to field-phenotyping, thereby shortening the breeding cycle. A collection of 320 elite breeding lines was selected and phenotyped extensively for yield and yield related traits at two different locations (Delhi and Patancheru, India) during the crop seasons 2011-12 and 2012-13 under rainfed and irrigated conditions. In parallel, these lines were also genotyped using DArTseq platform to generate genotyping data for 3000 polymorphic markers...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27920041/an-adaptive-response-to-uncertainty-can-lead-to-weight-gain-during-dieting-attempts
#4
A D Higginson, J M McNamara
BACKGROUND AND OBJECTIVES: Peoples' attempts to lose weight by low calorie diets often result in weight gain because of over-compensatory overeating during lapses. Animals usually respond to a change in food availability by adjusting their foraging effort and altering how much energy reserves they store. But in many situations the long-term availability of food is uncertain, so animals may attempt to estimate it to decide the appropriate level of fat storage. METHODOLOGY: We report the results of a conceptual model of feeding in which the animal knows whether food is currently abundant or limited, but does not know the proportion of time, there will be an abundance in the long-term and has to learn it...
2016: Evolution, Medicine, and Public Health
https://www.readbyqxmd.com/read/27919438/does-an-increased-body-mass-index-affect-endometrial-gene-expression-patterns-in-infertile-patients-a%C3%A2-functional-genomics-analysis
#5
Ioanna A Comstock, Patricia Diaz-Gimeno, Sergio Cabanillas, Jose Bellver, Patricia Sebastian-Leon, Meera Shah, Amy Schutt, Cecilia T Valdes, Maria Ruiz-Alonso, Diana Valbuena, Carlos Simon, Ruth B Lathi
OBJECTIVE: To analyze the transcriptomic profile of endometrial gene alterations during the window of implantation in infertile obese patients. DESIGN: Multicenter, prospective, case-control study. SETTING: Three academic medical centers for reproductive medicine. PATIENT(S): Infertile patients, stratified into body mass index (BMI) categories according to the World Health Organization guidelines, were included in the study...
December 2, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27918851/influence-of-a-100-m-simulated-in-water-rescue-on-cardiopulmonary-parameters
#6
Ana Sousa, Ricardo J Fernandes, Núria Rodríguez, J Arturo Abraldes
OBJECTIVE: Cardiopulmonary resuscitation (CPR) after a drowning episode is performed under fatigue conditions. However, the characterization of CPR in this context is still unknown. Our purpose was to investigate the effect of a 100-m simulated in-water rescue on CPR and physiological parameters in trained certified lifeguards. METHODS: Thirty trained certified lifeguards (age 24.6 ± 3.8 yrs; height 178.2 ± 7.4 cm and weight 76.9 ± 10.6 kg) completed two protocols using an adult manikin: (i) 4-min CPR after 4-min baseline conditions (CPR), and (ii) 4-min CPR after a 100-m simulated in-water rescue in the sea (CPR Rescue), both with a compression-ventilation ratio of 30:2...
December 5, 2016: Prehospital Emergency Care
https://www.readbyqxmd.com/read/27918433/protein-phosphatase-1-regulates-expression-of-neuregulin-1
#7
Tatiana Ammosova, Kareem Washington, Jamie Rotimi, Namita Kumari, Kahli A Smith, Xiaomei Niu, Marina Jerebtsova, Sergei Nekhai
Protein phosphatase 1 (PP1), a cellular serine/threonine phosphatase, is targeted to cellular promoters by its major regulatory subunits, PP1 nuclear targeting subunit, nuclear inhibitor of PP1 (NIPP1) and RepoMan. PP1 is also targeted to RNA polymerase II (RNAPII) by NIPP1 where it can dephosphorylate RNAPII and cycle-dependent kinase 9 (CDK9). Here, we show that treatment of cells with a small molecule activator of PP1 increases the abundance of a neuregulin-1 (NRG-1)-derived peptide. NRG-1 mRNA and protein levels were increased in the cells stably or transiently expressing mutant NIPP1 (mNIPP1) that does not bind PP1, but not in the cells expressing NIPP1...
December 2, 2016: Biology
https://www.readbyqxmd.com/read/27917884/ossgl-a-novel-pleiotropic-stress-related-gene-enhances-grain-length-and-yield-in-rice
#8
Manling Wang, Xuedan Lu, Guoyun Xu, Xuming Yin, Yanchun Cui, Lifang Huang, Pedro S C F Rocha, Xinjie Xia
Abiotic stress seriously affects the yield of rice (Oryza sativa L.). Grain yield in rice is multiplicatively determined by the number of panicles, number of grains per panicle, and grain weight. Here, we describe the molecular and functional characterization of STRESS_tolerance and GRAIN_LENGTH (OsSGL), a rice gene strongly up-regulated by a wide spectrum of abiotic stresses. OsSGL encodes a putative member of the DUF1645 protein family of unknown function. Overexpression of OsSGL significantly altered certain development processes greatly and positively affecting an array of traits in transgenic rice plants, including increased grain length, grain weight and grain number per panicle, resulting in a significant increase in yield...
December 5, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27917785/dipyrone-ameliorates-behavioural-changes-induced-by-unpredictable-chronic-mild-stress-gender-differences
#9
Olcay E Kiroğlu, Kübra E Demirkol, Fatih Berktaş, Arash A Yegani, Ayşegül Kirpik, Erkan Maytalman, Mahmut Ünverdi, Fazilet Aksu
PURPOSE: Antidepressant effects of analgesics have been investigate in both clinical and experimental studies. The purpose of this study was to investigate if the analgesic-antipyretic drug, dipyrone, also had antidepressant-like effects. METHODS: Depression-like effects were investigated in an unpredictable chronic mild stress (UCMS) model in both male and female mice. Cage changes, light-dark cycle reversal, cage tilting, wet floor, empty cage, foreign material on the floor and predator sounds were used to induce light stress at different times for six weeks...
December 1, 2016: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/27916879/vitamin-d-and-weight-cycling-impact-on-injury-illness-and-inflammation-in-collegiate-wrestlers
#10
Jacqueline N Barcal, Joi T Thomas, Bruce W Hollis, Kathy J Austin, Brenda M Alexander, D Enette Larson-Meyer
: This study explored the link between vitamin D status and frequency of skin infections, inflammation, and injury in college wrestlers during an academic year. METHODS: Serum 25-hydroxyvitamin D (25(OH)D) (n = 19), plasma cytokine (TNF-α, IL-6, IL-10) (n = 18) concentrations, and body weight/composition were measured and injury/illness/skin infection data were collected in fall, winter, and spring. RESULTS: In the fall, 74% of wrestlers had vitamin D concentrations <32 ng/mL which increased to 94% in winter and spring...
November 30, 2016: Nutrients
https://www.readbyqxmd.com/read/27914890/biomass-and-oil-production-by-chlorella-vulgaris-and-four-other-microalgae-effects-of-salinity-and-other-factors
#11
Tiyaporn Luangpipat, Yusuf Chisti
Five nominally freshwater microalgae (Chlorella vulgaris, Choricystis minor, Neochloris sp., Pseudococcomyxa simplex, Scenedesmus sp.) with a known ability to produce high-levels of lipids for possible use as fuel oils were evaluated for their ability to thrive and produce lipids in seawater and brackish water. Only C. vulgaris was found to thrive and produce lipids in full strength seawater. Seawater tolerant strains of C. vulgaris are unusual. Lipid productivity in nutrient sufficient seawater exceeded 37mgL(-1)d(-1) and was nearly 2-fold greater than in freshwater...
November 30, 2016: Journal of Biotechnology
https://www.readbyqxmd.com/read/27914310/electrical-potentials-measured-on-the-surface-of-the-knee-reflect-the-changes-of-the-contact-force-in-the-knee-joint-produced-by-postural-sway
#12
Lin Zhu, Martin Garon, Éric Quenneville, Michael D Buschmann, Pierre Savard
Electroarthrography (EAG) is a novel technique for recording potentials on the knee surface that are generated by the compression of articular cartilage and that reflect both compression force and cartilage quality. The mechanical loading of the knee is achieved by transferring the subject's body weight from a bipedal stance to a unipedal stance. We hypothesized that EAG potentials change with postural sway. The study was performed on 20 normal subjects (10 male, 10 female; age 29±10.5 yrs.; mass 68.8±14...
October 18, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27912120/solvothermal-synthesis-of-ag-hybrid-bipo4-heterostructures-with-enhanced-photodegradation-activity-and-stability
#13
Chang-Wei Huang, Mei-Yao Wu, Yang-Wei Lin
In this study, Ag hybrid BiPO4 (Ag/BiPO4) heterostructures were synthesized using a solvothermal method. The morphologies and optical properties of the Ag/BiPO4 heterostructures were drastically different from those of BiPO4 and were highly dependent on the AgNO3:BiPO4 weight percent during the synthesis. The three formulated heterostructures were evaluated for their photocatalytic degradation of methylene blue (MB) under UV light illumination; the 0.5%Ag/BiPO4 heterostructure was observed to result in 99% degradation of MB within 60min, a remarkably higher level of photodegradation activity than the levels caused by TiO2 and BiPO4...
November 22, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27912099/citrate-enhanced-release-of-arsenic-during-pyrite-oxidation-at-circumneutral-conditions
#14
Peng Zhang, Weiyu Yao, Songhu Yuan
The release of arsenic (As) from the oxidation of As-rich pyrite is an important source of the high arsenic in groundwater. As a widespread low-molecular-weight organic acid, citrate plays an important role on the cycling of Fe(II)/Fe(III) through complexation in circumneutral subsurface environments, while the influence of citrate on the release of As from the oxidation of As-rich pyrite is poorly understood. In this study, As was loaded onto pyrite particles under anoxic conditions, and its release was investigated in the presence of 0-1 mM citrate at pH 7...
November 24, 2016: Water Research
https://www.readbyqxmd.com/read/27909905/obesity-and-endometrial-cancer
#15
Eileen Shaw, Megan Farris, Jessica McNeil, Christine Friedenreich
Endometrial cancer is the sixth most common cancer in women worldwide and the most common gynecologic malignancy in the developed world. This chapter explores the current epidemiologic evidence on the association between obesity and endometrial cancer risk and mortality. Using body mass index (BMI) as a measure of obesity, we found that obesity (defined as BMI > 30 and < 35 kg/m(2)) was associated with a 2.6-fold increase in endometrial cancer risk, while severe obesity (BMI > 35 kg/m(2)) was associated with a 4...
2016: Recent Results in Cancer Research
https://www.readbyqxmd.com/read/27908792/freebie-rhabdomyolysis-a-public-health-concern-spin-class-induced-rhabdomyolysis-case-reports-and-review-of-literature
#16
Maureen Brogan, Rudrick Ledesma, Alan Coffino, Praveen N Chander
BACKGROUND: Rhabdomyolysis is a pathologic condition in which intracellular muscle constituents leak into the blood circulation. It is usually caused by muscle trauma. "Spinning" is an indoor form of cycling where participants use a special stationary exercise bicycle with a weighted flywheel and undergo high intensity cycling classes focusing on endurance. There have been several case reports in the literature of exertional rhabdomyolysis following spin class. METHODS: Our nephrology practices have diagnosed a number of cases of symptomatic patients presenting to our emergency departments following their first spin classes, with histories and creatinine phosphokinase levels diagnostic of exertional rhabdomyolysis...
November 28, 2016: American Journal of Medicine
https://www.readbyqxmd.com/read/27908734/triosephosphate-isomerase-1-suppresses-growth-migration-and-invasion-of-hepatocellular-carcinoma-cells
#17
Hao Jiang, Ning Ma, Yurong Shang, Wentao Zhou, Tianwei Chen, Dongxian Guan, Jingjing Li, Jingjing Wang, Erbin Zhang, Yuanyuan Feng, Fenfen Yin, Yanmei Yuan, Yuanyuan Fang, Lin Qiu, Dong Xie, Dongzhi Wei
Metabolic dysregulation is one of the most common and recognizable features of cancer. Triosephosphate isomerase 1 (TPI1), which catalyzes the interconversion of dihydroxyacetone phosphate (DHAP) and d-glyceraldehyde-3-phosphate (G3P) during glycosis and gluconeogenesis, is a crucial enzyme in the carbohydrate metabolism. However, the biological function and mechanism of TPI1 in cancer remain largely unknown. In this study, we have found that TPI1 expression was greatly decreased in clinical HCC samples, positively correlated with overall survival, and negatively associated with histological differentiation, tumor size and organ metastasis...
November 28, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27908178/a-probability-based-multi-cycle-sorting-method-for-4d-mri-a-simulation-study
#18
Xiao Liang, Fang-Fang Yin, Yilin Liu, Jing Cai
PURPOSE: To develop a novel probability-based sorting method capable of generating multiple breathing cycles of 4D-MRI images and to evaluate performance of this new method by comparing with conventional phase-based methods in terms of image quality and tumor motion measurement. METHODS: Based on previous findings that breathing motion probability density function (PDF) of a single breathing cycle is dramatically different from true stabilized PDF that resulted from many breathing cycles, it is expected that a probability-based sorting method capable of generating multiple breathing cycles of 4D images may capture breathing variation information missing from conventional single-cycle sorting methods...
December 2016: Medical Physics
https://www.readbyqxmd.com/read/27906550/delayed-diagnosis-and-a-lack-of-information-associated-with-dissatisfaction-in-women-with-polycystic-ovary-syndrome
#19
Melanie Gibson-Helm, Helena Teede, Andrea Dunaif, Anuja Dokras
CONTEXT: Polycystic ovary syndrome (PCOS) is a complex, chronic and under-recognized disorder. Diagnosis experience may have lasting effects on wellbeing and self-management. OBJECTIVE: To investigate PCOS diagnosis experiences, information provided and concerns about PCOS. DESIGN: Cross-sectional study using an online questionnaire. SETTING: Recruitment via support group websites in 2015-2016. PARTICIPANTS: 1385 women with a reported diagnosis of PCOS, living in North America (53...
December 1, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27906159/persistent-microbiome-alterations-modulate-the-rate-of-post-dieting-weight-regain
#20
Christoph A Thaiss, Shlomik Itav, Daphna Rothschild, Mariska Meijer, Maayan Levy, Claudia Moresi, Lenka Dohnalová, Sofia Braverman, Shachar Rozin, Sergey Malitsky, Mally Dori-Bachash, Yael Kuperman, Inbal Biton, Arieh Gertler, Alon Harmelin, Hagit Shapiro, Zamir Halpern, Asaph Aharoni, Eran Segal, Eran Elinav
In tackling the obesity pandemic, significant efforts are devoted to the development of effective weight reduction strategies, yet many dieting individuals fail to maintain a long-term weight reduction, and instead undergo excessive weight regain cycles. The mechanisms driving recurrent post-dieting obesity remain largely elusive. Here, we identify an intestinal microbiome signature that persists after successful dieting of obese mice, which contributes to faster weight regain and metabolic aberrations upon re-exposure to obesity-promoting conditions and transmits the accelerated weight regain phenotype upon inter-animal transfer...
November 24, 2016: Nature
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