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23 papers found.
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Oral microbial community typing of caries and pigment in primary dentition

Background Black extrinsic discoloration in primary dentition is a common clinical and aesthetic problem that can co-occur with dental caries, the most common oral diseases in childhood. Although the role of bacteria in the formation of pigment and caries in primary dentition is important, their basic features still remain a further mystery. Methods Using targeted sequencing of the ...

Application and comparison of different implanted ports in malignant tumor patients

Background The current study aims to compare the application and convenience of the upper arm port with the other two methods of implanted ports in the jugular vein and the subclavian vein in patients with gastrointestinal cancers. Methods Currently, the standard of practice is placement of central venous access via an internal jugular vein approach. Perioperative time, ...

Plasmon-Enhanced Light Absorption in GaAs Nanowire Array Solar Cells

promising for low-cost high-performance nanoscale solar cells. Authors’ contributions Yanhong Li and Yao Wu carried out the electrical modeling partial simulation, and drafted the manuscript. Xin Yan

Early urinary angiotensinogen excretion in critically ill neonates

Introduction: Urinary angiotensinogen is considered a reliable biomarker for intrarenal renin–angiotensin system activity. The aims of this study were to assess the urinary angiotensinogen level during the first day of life and to evaluate its correlation with renal function in critically ill neonates.

U-shaped relationship between early blood glucose and mortality in critically ill children

Background The aims of this study are to evaluate the relationship between early blood glucose concentrations and mortality and to define a ‘safe range’ of blood glucose concentrations during the first 24 h after pediatric intensive care unit (PICU) admission with the lowest risk of mortality. We further determine whether associations exist between PICU mortality and early ...

Differences in the Activities of Eight Enzymes from Ten Soil Fungi and Their Possible Influences on the Surface Structure, Functional Groups, and Element Composition of Soil Colloids

How soil fungi function in soil carbon and nutrient cycling is not well understood by using fungal enzymatic differences and their interactions with soil colloids. Eight extracellular enzymes, EEAs (chitinase, carboxymethyl cellulase, β-glucosidase, protease, acid phosphatase, polyphenol oxidase, laccase, and guaiacol oxidase) secreted by ten fungi were compared, and then the fungi ...

Long Non-Coding RNA Expression Profile in the Kidneys of Male, Low Birth Weight Rats Exposed to Maternal Protein Restriction at Postnatal Day 1 and Day 10

Background Long non-coding RNAs (lncRNAs), which are involved in a variety of biological functions and aberrantly expressed in many types of diseases, are required for postnatal development. In this study, we aimed to investigate the lncRNA profiles in low birth weight (LBW) rats with reduced nephron endowment induced by the restriction of maternal protein intake. LBW by reduced ...

A Monoclonal Antibody That Tracks Endospore Formation in the Microsporidium Nosema bombycis

Nosema bombycis, the first identified microsporidium, is a destructive pathogen of the silkworm Bombyx mori and causes severe worldwide economic losses in sericulture. Major microsporidian structural proteins, such as the spore wall protein (SWP), are known to be involved in host invasion. In this study, the reactivity of the monoclonal antibody 2B10 was tested against an endospore ...

Loss of heterozygosity at D8S262: an early genetic event of hepatocarcinogenesis

Background Hepatocellular carcinoma (HCC) is a multi-factor, multi-step, multi-gene and complicated process resulting from the accumulation of sequential genetic and epigenetic alterations. An important change among them is from precancerous lesions to HCC. However, only few studies have been reported about the sequential genetic changes during hepatocarcinogenesis. Methods We ...

Effectiveness of predicting in-hospital mortality in critically ill children by assessing blood lactate levels at admission

Background Hyperlactatemia upon admission is a documented risk factor for mortality in critically ill adult patients. However, the predictive significance of a single lactate measurement at admission for mortality in the general population of critically ill children remains uncertain. This study evaluated the predictive value of blood lactate levels at admission and determined the ...

Addition of SNAP to perinatal risk factors improves the prediction of bronchopulmonary dysplasia or death in critically ill preterm infants

Background Bronchopulmonary dysplasia (BPD) is the most common serious pulmonary morbidity in premature infants. The score for neonatal acute physiology (SNAP) is a physiologic severity index for neonatal intensive care and correlates well with neonatal mortality and clinical outcomes. The prognostic value of the SNAP score for BPD in preterm infants remains to be clarified. The ...

Transmission of H7N9 influenza virus in mice by different infective routes

Background On 19 February 2013, the first patient infected with a novel influenza A H7N9 virus from an avian source showed symptoms of sickness. More than 349 laboratory-confirmed cases and 109 deaths have been reported in mainland China since then. Laboratory-confirmed, human-to-human H7N9 virus transmission has not been documented between individuals having close contact; ...

Urinary protein markers predict the severity of renal histological lesions in children with mesangial proliferative glomerulonephritis

BackgroundSeveral renal histopathological features, including mesangial hypercellularity, glomerulosclerosis, tubular atrophy and interstitial fibrosis, are considered to be independent predictors of end-stage renal failure in patients with glomerular diseases. Mesangial proliferative glomerulonephritis (MesPGN) is characterized by proliferations of mesangial cells with increase in ...

Urine interleukin-18 and cystatin-C as biomarkers of acute kidney injury in critically ill neonates

Yanhong Li Chenlu Fu Xiaofei Zhou Zhihui Xiao Xueming Zhu Meifang Jin Xiaozhong Li Xing Feng 0 ) Department of Nephrology, Institute of Pediatric Research, Children's Hospital of Soochow University

Seminal vesicle metastasis after partial hepatectomy for hepatocellular carcinoma

Background Metastasis to the seminal vesicle is extremely rare for hepatocellular carcinoma (HCC). To our knowledge, it has been not reported in literature. The purpose of the present paper was to report a case of metastasis to the seminal vesicle after HCC resection, along with its histological features and immunohistochemical characteristics. Case Presentation A 46-year-old ...

Cloning and characterization of a viral α2–3-sialyltransferase (vST3Gal-I) for the synthesis of sialyl Lewisx

Sialyl Lewisx (SLex, Siaα2–3Galβ1–4(Fucα1–3)GlcNAcβOR) is an important sialic acid-containing carbohydrate epitope involved in many biological processes such as inflammation and cancer metastasis. In the biosynthetic process of SLex, α2–3-sialyltransferase-catalyzed sialylation generally proceeds prior to α1–3-fucosyltransferase-catalyzed fucosylation. For the chemoenzymatic ...

The mouse and ferret models for studying the novel avian-origin human influenza A (H7N9) virus

Xiang Kai Gao Yanfeng Xu Lan Huang Yanhong Li Jiangning Liu Yanfeng Yao Pin Yu Weidong Yong Qiang Wei Lianfeng Zhang Chuan Qin 0 Equal contributors Institute of Laboratory Animal Sciences, Chinese Academy

Molecular evolution of rice S 5 n and functional comparison among different sequences

The wide compatibility gene, S 5 n , can overcome embryo sac sterility between indica and japonica subspecies of rice. Therefore, it is very important to characterize the features of the S 5 n sequence to reveal the origin and evolution of S 5 n . In this paper, 26 cultivated rice haplotypes and 22 wild rice accessions harboring S 5 n were used to sequence S 5 n . The results ...

Novel Avian-Origin Human Influenza A(H7N9) Can Be Transmitted Between Ferrets via Respiratory Droplets

The outbreak of human infections caused by novel avian-origin influenza A(H7N9) in China since March 2013 underscores the need to better understand the pathogenicity and transmissibility of these viruses in mammals. In a ferret model, the pathogenicity of influenza A(H7N9) was found to be less than that of an influenza A(H5N1) strain but comparable to that of 2009 pandemic ...

Trans-sialidase activity of Photobacterium damsela α2,6-sialyltransferase and its application in the synthesis of sialosides

Trans-sialidases catalyze the transfer of a sialic acid from one sialoside to an acceptor to form a new sialoside. α2,3-Trans-sialidase activity was initially discovered in the parasitic protozoan Trypanosoma cruzi, and more recently was found in a multifunctional Pasteurella multocida sialyltransferase PmST1. α2,8-Trans-sialidase activity was also described for a multifunctional ...