نتایج جستجو برای: tna

تعداد نتایج: 313  

2013
Naveen Gupta Pebam Sudesh Mahesh Prakash Sujit K Tripathy Mandeep S Dhillon

Background: Ultrasonographic evaluation of clubfoot is an objective method of severity assessment. The objective of this article is to assess the reliability of clubfoot severity assessment by sonographic evaluation of talonavicular angle (TNA) and the reliability of assessing change in angle on simulated Ponseti manipulation. Materials and methods: Twenty-six infants with unilateral idiopathic...

Journal: :Journal of bacteriology 1985
V Stewart C Yanofsky

Tryptophanase, encoded by the gene tnaA, is a catabolic enzyme distinct from the enzymes of tryptophan biosynthesis. Tryptophanase synthesis is induced by tryptophan and is subject to catabolite repression. We studied the mechanism of tna operon induction. Mutants with altered rho factor were partially constitutive for tna expression, implicating rho-dependent transcription termination in the c...

Journal: :Internal medicine 2001
T Ishida T Hashimoto M Arita M Osawa H Tachibana M Nishioka I Ito

OBJECTIVE To evaluate the indications, efficacy, and safety of transthoracic needle aspiration (TNA) in diagnosing community-acquired pneumonia (CAP). METHODS TNA procedure was performed using an ultrathin needle with ultrasonography and/or computed tomography. The aspirate samples were Gram-stained and sent for cultures. The results were compared with those from conventional microbiological ...

2017
Hui Mei Changhua Shi Randi M. Jimenez Yajun Wang Miramar Kardouh John C. Chaput

Threose nucleic acid (TNA) is an artificial genetic polymer capable of undergoing Darwinian evolution to produce aptamers with affinity to specific targets. This property, coupled with a backbone structure that is refractory to nuclease digestion, makes TNA an attractive biopolymer system for diagnostic and therapeutic applications. Expanding the chemical diversity of TNA beyond the natural bas...

2014
J. Craig Blain Alonso Ricardo Jack W. Szostak

Threose nucleic acid (TNA) is a potential alternative genetic material that may have played a role in the early evolution of life. We have developed a novel synthesis of 2'-amino modified TNA nucleosides (2'-NH2-TNA) based on a cycloaddition reaction between a glycal and an azodicarboxylate, followed by direct nucleosidation of the cycloadduct. Using this route, we synthesized the thymine and g...

Journal: :American journal of physiology. Renal physiology 2014
Roger G Evans Gerard K Harrop Jennifer P Ngo Connie P C Ow Paul M O'Connor

We examined how the presence of a fixed level of basal renal O2 consumption (Vo2(basal); O2 used for processes independent of Na(+) transport) confounds the utility of the ratio of Na(+) reabsorption (TNa(+)) to total renal Vo2 (Vo2(total)) as an index of the efficiency of O2 utilization for TNa(+). We performed a systematic review and additional experiments in anesthetized rabbits to obtain th...

Journal: :Brain : a journal of neurology 2005
Zografos Caramanos Sridar Narayanan Douglas L Arnold

Meta-analysis was performed on the results of 75 comparisons from the 30 peer-reviewed publications that used proton magnetic resonance spectroscopy (1H-MRS) or spectroscopic imaging to (i) quantify the mean concentrations of total creatine (tCr, found in neurons, astrocytes and oligodendrocytes), and/or total N-acetyl groups (tNA, found only in neurons), in the lesional and/or non-lesional whi...

Journal: :Asian Pacific journal of cancer prevention : APJCP 2015
Mete Gundog Oguz G Yildiz Nalan Imamoglu Dicle Aslan Aynur Aytekin Isin Soyuer Serdar Soyuer

The prognostic significance of AgNOR proteins in stage II-III rectal cancers treated with chemoradiotherapy was evaluated. Silver staining was applied to the 3μm sections of parafin blocked tissues from 30 rectal cancer patients who received 5-FU based chemoradiotherapy from May 2003 to June 2006. The microscopic displays of the cells were transferred into the computer via a video camera. AgNOR...

Journal: :American journal of physiology. Renal physiology 2015
Anita T Layton Volker Vallon Aurélie Edwards

The objective of this study was to investigate how physiological, pharmacological, and pathological conditions that alter sodium reabsorption (TNa) in the proximal tubule affect oxygen consumption (QO2 ) and Na(+) transport efficiency (TNa/QO2 ). To do so, we expanded a mathematical model of solute transport in the proximal tubule of the rat kidney. The model represents compliant S1, S2, and S3...

Journal: :Asia Pacific journal of clinical nutrition 2015
Dae Yong Yi Hye Ran Yang

BACKGROUND The aim of this study was to compare clinical aspects of the application of three-in-one total nutrient mixture (TNA) for peripheral parenteral nutrition (PPN) with those of the conventional PPN (cPPN) method of providing short-term parenteral nutrition for pediatric inpatients. METHODS We conducted a retrospective study in children from 2 to 18 years old who were hospitalized and ...

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