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https://www.readbyqxmd.com/read/28918462/development-of-a-new-scoring-system-to-predict-5-year-incident-diabetes-risk-in-middle-aged-and-older-chinese
#1
Xu Han, Jing Wang, Yaru Li, Hua Hu, Xiulou Li, Jing Yuan, Ping Yao, Xiaoping Miao, Sheng Wei, Youjie Wang, Yuan Liang, Xiaomin Zhang, Huan Guo, An Pan, Handong Yang, Tangchun Wu, Meian He
AIMS: The aim of this study was to develop a new risk score system to predict 5-year incident diabetes risk among middle-aged and older Chinese population. METHODS: This prospective study included 17,690 individuals derived from the Dongfeng-Tongji cohort. Participants were recruited in 2008 and were followed until October 2013. Incident diabetes was defined as self-reported clinician diagnosed diabetes, fasting glucose ≥7.0 mmol/l, or the use of insulin or oral hypoglycemic agent...
September 16, 2017: Acta Diabetologica
https://www.readbyqxmd.com/read/28918446/favorable-surgical-outcomes-of-aldosterone-producing-adenoma-based-on-lateralization-by-ct-imaging-and-hypokalemia-a-non-avs-based-strategy
#2
Hai Li, Jianbin Liu, Xiujuan Feng, Liehua Liu, Guohong Wei, Xiaopei Cao, Yanbing Li
PURPOSE: To test the efficacy of a strategy based on CT imaging and clinical characteristics on lateralizing origin of excess aldosterone secretion in primary aldosteronism. PATIENTS AND METHODS: Consecutive patients with diagnosed primary hyperaldosteronism from June 2006 to July 2012 in our center underwent adrenal surgeries without pre-operational adrenal venous sampling (AVS) if all the three criteria were met: (1) round- or oval-shaped occupational lesion of low density after contrast enhancement with diameter >1 cm on CT scan was located in one adrenal gland; (2) unequivocally normal contralateral adrenal gland; (3) serum potassium level lower than 3...
September 16, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28918073/a-directed-evolution-approach-to-select-for-novel-adeno-associated-virus-capsids-on-an-hiv-1-producer-t-cell-line
#3
Dawn P Wooley, Priyanka Sharma, John R Weinstein, Poornima Kotha Lakshmi Narayan, David V Schaffer, Katherine J D A Excoffon
A directed evolution approach was used to select for Adeno-associated virus (AAV) capsids that would exhibit more tropism toward an HIV-1 producer T cell line with the long-term goal of developing improved gene transfer vectors. A library of AAV variants was used to infect H9T cells previously infected or uninfected by HIV-1 followed by AAV amplification with wild-type adenovirus. Six rounds of biological selection were performed, including negative selection and diversification after round three. The H9T cells were successfully infected with all three wild-type viruses (AAV, adenovirus, and HIV-1)...
September 13, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28917879/laccase-tempo-oxidation-in-the-production-of-mechanically-strong-arabinoxylan-and-glucomannan-aerogels
#4
Kirsti Parikka, Ida Nikkilä, Leena Pitkänen, Abdul Ghafar, Tuula Sontag-Strohm, Maija Tenkanen
New wheat arabinoxylan and konjac glucomannan hydrogels and aerogels were prepared by hemiacetal crosslinking induced by laccase/TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl) -catalysed oxidation, which selectively converts the primary hydroxyl groups to aldehydes. The degree of oxidation of the product aldehydes was ca. 10% of the total carbohydrates of the polysaccharides, and the determination of storage and viscous moduli of the oxidised samples showed that they had formed true hydrogels. Two freezing methods for the hydrogels, conventional freezing and ice crystal templating, were investigated for aerogel production, the ice crystal templated products especially were mechanically strong in compression test against the ice crystals' growth direction...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28917838/human-smoothened-inhibits-human-immunodeficiency-virus-type-1-infection
#5
Takeshi Yoshida, Akiko Hamano, Asuka Ueda, Hiroaki Takeuchi, Shoji Yamaoka
Human SMOOTHENED (SMO) was identified by expression cloning as a new host factor that inhibits HIV-1 infection. Forced expression of SMO inhibited HIV-1 replication and infection with a single-round lentiviral vector, but not infection with a murine leukemia virus-based retroviral vector in human MT-4 T cells. Quantitative PCR analyses revealed that stable expression of SMO impaired formation of the integrated form of lentiviral DNA, but did not interrupt reverse transcription. This inhibition was evident in MT-4 and HUT102 human T cell lines expressing low levels of SMO mRNA, but not in SupT1 or Jurkat T cell lines expressing higher levels of SMO mRNA...
September 13, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28917829/a-chinese-boy-with-geleophysic-dysplasia-caused-by-compound-heterozygous-mutations-in-adamtsl2
#6
Li Dongxiao, Dong Hui, Zheng Hong, Song Jinqing, Li Xiyuan, Jin Ying, Liu Yupeng, Yang Yanling
Geleophysic dysplasia, belonging to the group of acromelic dysplasia, is a rare genetic disease. Two genes, FBN1 and ADAMTSL2, were known to be linked to this disorder. The disorder presents as extreme short stature, short limbs, small hands and feet, stubby fingers and toes, joint stiffness, toe walking, skin thickening, progressive cardiac valvular thickening and characteristic facial features, including a round face with full cheeks. Here, we report the first Chinese case with geleophysic dysplasia type 1 based on clinical and genetic features...
September 13, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/28917743/selection-of-an-aptamer-against-muscovy-duck-parvovirus-for-highly-sensitive-rapid-visual-detection-by-label-free-aptasensor
#7
Taofeng Lu, Qin Ma, Wenzhuo Yan, Yuanzhi Wang, Yuanyuan Zhang, Lili Zhao, Hongyan Chen
Muscovy duck parvovirus (MDPV) causes high mortality and morbidity in ducks. This study investigated a novel aptamer-based, label-free aptasensor detection of MDPV. In this study, we developed an ssDNA aptamer using the filtration partition and lambda exonuclease method with an affinity-based monitor and counter-screening process. After 15 rounds of SELEX (systematic evolution of ligands by exponential enrichment), the ssDNA aptamer Apt-10, which specifically bound to MDPV with high affinity (Kd = 467nM) was successfully screened, and the aptamer was also found to be good specific to MDPV...
January 1, 2018: Talanta
https://www.readbyqxmd.com/read/28917414/chemical-and-physical-analysis-of-phaco-handpiece-tip-surfaces-before-and-after-cataract%C3%A2-surgery
#8
Paolo Cecchini, Rossella D'Aloisio, Manlio Antonuccio, Gianluca Turco, Federica Bondino, Elena Magnano, Marta Di Nicola, Daniele Tognetto
PURPOSE: To evaluate the surface chemical composition and roughness of different phaco tips before and after their use during cataract surgery. SETTING: Eye Clinic, University of Trieste, Trieste, Italy. DESIGN: Experimental study. METHODS: Of the 66 tips studied, 33 (15 new, 15 after single use, and 3 after multiple uses) were studied with X-ray photoemission spectroscopy and 33 (15 new, 15 after single use, and 3 after multiple uses) were examined using scanning electron microscopy with energy dispersive X-ray spectroscopy analysis and contact profilometry...
August 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28917121/a-formal-description-of-middle-ear-pressure-regulation
#9
William J Doyle
INTRODUCTION: Middle ear (ME) pressure-regulation (MEPR) is a homeostatic mechanism that maintains the ME-environment pressure-gradient (MEEPG) within a range optimized for "normal" hearing. OBJECTIVE: Describe MEPR using equations applicable to passive, inter-compartmental gas-exchange and determine if the predictions of that description include the increasing ME pressure observed under certain conditions and interpreted by some as evidencing gas-production by the ME mucosa...
August 24, 2017: Hearing Research
https://www.readbyqxmd.com/read/28916830/the-effects-of-different-enrofloxacin-dosages-on-clinical-efficacy-and-resistance-development-in-chickens-experimentally-infected-with-salmonella-typhimurium
#10
Jun Li, Haihong Hao, Guyue Cheng, Xu Wang, Saeed Ahmed, Muhammad Abu Bakr Shabbir, Zhenli Liu, Menghong Dai, Zonghui Yuan
To investigate the optimal dosage which can improve clinical efficacy and minimize resistance, pharmacokinetics/pharmacodynamics model of enrofloxacin was established. Effect of enrofloxacin treatments on clearance of Salmonella in experimentally infected chickens and simultaneously resistance selection in Salmonella and coliforms were evaluated in three treatment groups (100, PK/PD designed dosage of 4, 0.1 mg/kg b.w.) and a control group. Treatment duration was three rounds of 7-day treatment alternated with 7-day withdrawal...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28915631/in-vivo-autophagy-and-biogenesis-of-autophagosomes-within-male-haploid-cells-during-spermiogenesis
#11
Ping Yang, Nisar Ahmed, Lingling Wang, Hong Chen, Yasir Waqas, Tengfei Liu, Abdul Haseeb, Nasrullah Bangulzai, Yufei Huang, Qiusheng Chen
Autophagy is a unique catabolic pathway that is linked to several physiological processes. However, its role in the process of spermiogenesis is largely unknown. The aim of the current study was to determine the in vivo role of autophagy and the origin of autophagosome membrane biogenesis within male haploid cells. Our immunohistochemistry results demonstrated that LC3 and ATG7 localization were increased dramatically in round to elongated spermatids (haploid cells) towards the lumen of seminiferous tubules, however, poorly expressed in the early stages of germ cells near the basal membrane...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915248/invasion-strategy-and-abiotic-activity-triggers-for-non-native-gobiids-of-the-river-rhine
#12
Jan Baer, Frank Hartmann, Alexander Brinker
The 24 hour activity patterns of three non-native gobiids (round goby Neogobius melanostomus, Western tubenose goby Proterorhinus semilunaris and bighead goby Ponticola kessleri) were assessed over 46 consecutive months between 2011 and 2014 from their occurrence in the cooling water intake of a nuclear power plant on the River Rhine, Germany. In total, 117717 gobiids were identified and classified. The occurrence of all three species varied strongly between sampling years, and species-specific activity triggers were identified...
2017: PloS One
https://www.readbyqxmd.com/read/28915003/the-evolution-of-dna-templated-synthesis-as-a-tool-for-materials-discovery
#13
Rachel K O'Reilly, Andrew J Turberfield, Thomas R Wilks
Precise control over reactivity and molecular structure is a fundamental goal of the chemical sciences. Billions of years of evolution by natural selection have resulted in chemical systems capable of information storage, self-replication, catalysis, capture and production of light, and even cognition. In all these cases, control over molecular structure is required to achieve a particular function: without structural control, function may be impaired, unpredictable, or impossible. The search for molecules with a desired function is often achieved by synthesizing a combinatorial library, which contains many or all possible combinations of a set of chemical building blocks (BBs), and then screening this library to identify "successful" structures...
September 15, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28914981/fna-cytology-of-solitary-fibrous-tumors-and-the-diagnostic-value-of-stat6-immunocytochemistry
#14
Edneia Tani, Johan Wejde, Kristina Åström, Inga-Lill Wingmo, Olle Larsson, Felix Haglund
BACKGROUND: Solitary fibrous tumors (SFTs) are rare mesenchymal tumors commonly located in the pleura, soft tissues, or meninges and are characterized by the NGFI-A-binding protein 2 (NAB2)-signal transducer and activator of transcription 6 (STAT6) fusion gene. Recent studies have indicated that nuclear STAT6 immunohistochemistry is a specific marker for SFTs. METHODS: The authors reviewed fine-needle aspiration (FNA) specimens from extracranial SFTs diagnosed at their institution between 1993 and 2017...
September 15, 2017: Cancer
https://www.readbyqxmd.com/read/28914954/resident-rounds-part-iii-case-report-metastatic-cutaneous-squamous-cell-carcinoma-in-an-african-american-female
#15
Jennifer N Harb, Alexandra L Owens, Kathryn Mooneyham Potter, Michael Montuno, Reordan O De Jesus, Sailesh Konda
Cutaneous squamous cell carcinoma (cSCC) is the most common skin cancer diagnosed in African Americans.<sup>1</sup> Twenty to forty percent of cSCCs reported in African Americans are related to chronic scarring processes or areas of in ammation.<sup>2</sup> Risk factors for developing cSCCs in patients of color include chronic scars resulting from burns, skin ulcers, and radiation sites; and chronic inflammatory diseases such as discoid lupus and hidradenitis suppuritiva.<sup>1</sup> Although skin cancer only accounts for 1% to 2% of cancers diagnosed within African Americans, it is associated with increased morbidity and mortality in this population...
January 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28914633/gaps-in-current-knowledge-and-priorities-for-future-research-in-dry-eye
#16
Ian J Saldanha, Kay Dickersin, Susan T Hutfless, Esen K Akpek
PURPOSE: Dry eye, a common yet underrecognized and evolving field, has few recommended treatment algorithms, mostly based on expert consensus rather than robust research evidence. There are high costs associated with managing dry eye and conducting research to identify effective and safe long-term treatments. To support evidence-based management of dry eye, our purpose was to identify and prioritize important clinical research questions for future clinical research. METHODS: We translated recommendations from the American Academy of Ophthalmology's 2013 Preferred Practice Patterns for dry eye into answerable clinical research questions about treatment effectiveness...
September 12, 2017: Cornea
https://www.readbyqxmd.com/read/28914256/mettl3-mettl14-mediated-mrna-n-6-methyladenosine-modulates-murine-spermatogenesis
#17
Zhen Lin, Phillip J Hsu, Xudong Xing, Jianhuo Fang, Zhike Lu, Qin Zou, Ke-Jia Zhang, Xiao Zhang, Yuchuan Zhou, Teng Zhang, Youcheng Zhang, Wanlu Song, Guifang Jia, Xuerui Yang, Chuan He, Ming-Han Tong
Spermatogenesis is a differentiation process during which diploid spermatogonial stem cells (SSCs) produce haploid spermatozoa. This highly specialized process is precisely controlled at the transcriptional, posttranscriptional, and translational levels. Here we report that N(6)-methyladenosine (m(6)A), an epitranscriptomic mark regulating gene expression, plays essential roles during spermatogenesis. We present comprehensive m(6)A mRNA methylomes of mouse spermatogenic cells from five developmental stages: undifferentiated spermatogonia, type A1 spermatogonia, preleptotene spermatocytes, pachytene/diplotene spermatocytes, and round spermatids...
September 15, 2017: Cell Research
https://www.readbyqxmd.com/read/28914116/defining-a-core-outcome-set-for-adolescent-and-young-adult-patients-with-a-spinal-deformity
#18
Marinus de Kleuver, Sayf S A Faraj, Roderick M Holewijn, Niccole M Germscheid, Raphael D Adobor, Mikkel Andersen, Hans Tropp, Benny Dahl, Heli Keskinen, Anders Olai, David W Polly, Miranda L van Hooff, Tsjitske M Haanstra
Background and purpose - Routine outcome measurement has been shown to improve performance in several fields of healthcare. National spine surgery registries have been initiated in 5 Nordic countries. However, there is no agreement on which outcomes are essential to measure for adolescent and young adult patients with a spinal deformity. The aim of this study was to develop a core outcome set (COS) that will facilitate benchmarking within and between the 5 countries of the Nordic Spinal Deformity Society (NSDS) and other registries worldwide...
September 15, 2017: Acta Orthopaedica
https://www.readbyqxmd.com/read/28913126/angular-pregnancy
#19
İbrahim Alanbay, Mustafa Öztürk, Kazım Emre Karaşahin, Müfit Cemal Yenen
Angular pregnancy is a rare condition in which the embryo is implanted in the lateral angle of the uterine cavity, medial to the uterotubal junction and round ligament, and causes life-threatening obstetric complications. It is important to differentiate this condition from interstitial and cornual pregnancy because they all result in emergency conditions. Although angular pregnancy can progress to term pregnancy, it may be associated with major obstetric complications such as uterine rupture, placental retention, postpartum hemorrhage, or may need further surgery and hysterectomy...
December 2016: Turk J Obstet Gynecol
https://www.readbyqxmd.com/read/28912831/genome-sequencing-and-transcriptome-analysis-of-trichoderma-reesei-qm9978-strain-reveals-a-distal-chromosome-translocation-to-be-responsible-for-loss-of-vib1-expression-and-loss-of-cellulase-induction
#20
Christa Ivanova, Jonas Ramoni, Thiziri Aouam, Alexa Frischmann, Bernhard Seiboth, Scott E Baker, Stéphane Le Crom, Sophie Lemoine, Antoine Margeot, Frédérique Bidard
BACKGROUND: The hydrolysis of biomass to simple sugars used for the production of biofuels in biorefineries requires the action of cellulolytic enzyme mixtures. During the last 50 years, the ascomycete Trichoderma reesei, the main source of industrial cellulase and hemicellulase cocktails, has been subjected to several rounds of classical mutagenesis with the aim to obtain higher production levels. During these random genetic events, strains unable to produce cellulases were generated...
2017: Biotechnology for Biofuels
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