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https://www.readbyqxmd.com/read/29236342/longitudinal-assessment-of-rabbit-renal-fibrosis-induced-by-unilateral-ureteral-obstruction-using-two-dimensional-susceptibility-weighted-imaging
#1
Jing-Gang Zhang, Zhao-Yu Xing, Ting-Ting Zha, Xiao-Juan Tian, Ya-Nan Du, Jie Chen, Wei Xing
BACKGROUND: Previous studies indicated that two-dimensional-susceptibility weighted imaging (2D-SWI) could serve as a useful biomarker for differentiating the grade of liver fibrosis. PURPOSE: To evaluate the feasibility of 2D-SWI in the dynamic quantification of renal fibrosis in a rabbit model. STUDY TYPE: Longitudinal study. ANIMAL MODEL: Twenty-Four New Zealand White Rabbits including control group (n = 4); and renal fibrosis group (n = 20), by means of a unilateral ureteral obstruction (UUO) model...
December 13, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29236326/knockdown-of-ski-decreased-the-reactive-astrocytes-proliferation-in-vitro-induced-by-oxygen-glucose-deprivation-reoxygenation
#2
Xin Zhao, Kai-Sheng Zhou, Zhong-Hao Li, Wei Nan, Jing Wang, Ya-Yi Xia, Hai-Hong Zhang
Glia scar is a pathological marker in late phase of brain ischemia disease, which constitutes a major physical biochemical barrier to impede axonal regrowth. Astrocytes are known to be critically involved in the formation of glial scar. However, their response to ischemia and their role in neuroprotection after central nervous system (CNS) injury are not completely clear. Recently, we have demonstrated for the first time that Ski was up-regulated in reactive astrocytes after spinal cord injury in vivo and in vitro, which indicates Ski may be a new molecule that control astrocytes biologic properties after CNS injury...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29235539/first-principle-study-of-structural-electronic-and-magnetic-properties-of-fec-n-n%C3%A2-%C3%A2-1-8-and-fec-8tm-tm%C3%A2-%C3%A2-v-cr-mn-and-co-clusters
#3
Cheng-Gang Li, Jie Zhang, Wu-Qin Zhang, Ya-Nan Tang, Bao-Zeng Ren, Yan-Fei Hu
The structural, electronic and magnetic properties of the (FeC)n (n = 1-8) clusters are studied using the unbiased CALYPSO structure search method and density functional theory. A combination of the PBE functional and 6-311 + G* basis set is used for determining global minima on potential energy surfaces of (FeC)n clusters. Relatively stabilities are analyzed via computing their binding energies, second order difference and HOMO-LUMO gaps. In addition, the origin of magnetic properties, spin density and density of states are discussed in detail, respectively...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29235460/structural-insight-into-catalytic-mechanism-of-pet-hydrolase
#4
Xu Han, Weidong Liu, Jian-Wen Huang, Jiantao Ma, Yingying Zheng, Tzu-Ping Ko, Limin Xu, Ya-Shan Cheng, Chun-Chi Chen, Rey-Ting Guo
PET hydrolase (PETase), which hydrolyzes polyethylene terephthalate (PET) into soluble building blocks, provides an attractive avenue for the bioconversion of plastics. Here we present the structures of a novel PETase from the PET-consuming microbe Ideonella sakaiensis in complex with substrate and product analogs. Through structural analyses, mutagenesis, and activity measurements, a substrate-binding mode is proposed, and several features critical for catalysis are elucidated.
December 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29235302/-status-problems-and-warranty-strategy-of-quality-uniformity-for-traditional-chinese-medicine-preparations
#5
Li-Hua Zeng, Zhen-Feng Wu, Fang Wang, Xue-Cheng Wang, Ya-Qi Wang, Peng-Fei Yue, Na Wan, Huan-Yu Lin, Ming Yang
The quality uniformity of traditional Chinese medicine (TCM) preparation is the base for guaranteeing the safety and effectiveness of clinical medication. At present, the quality of TCM preparation is uneven. At present, the same TCM preparation in different manufacturers, TCM preparations in the same manufacturer, and even different batches of a same TCM preparation in the same manufacturer have great differences in quality, which can not reach stability and uniformity. This paper would discuss the possible factors that influence the uniformity of quality in the whole process of pharmacy by means of consulting relevant literature on quality control of Chinese herbal preparations and analyzing the present situation and problems of the quality of TCM preparation...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29235253/an-attempt-at-revisiting-the-factor-structure-of-the-dysexecutive-questionnaire-in-the-chinese-setting
#6
Zhuo-Ya Yang, Sai-Fei Sun, Simon S Y Lui, Hai-Song Shi, Dong-Jie Xie, Wen-Lan Xie, Ya Wang, Eric F C Cheung, David H K Shum, Raymond C K Chan
This study examined the factor structure of the Chinese version of the Dysexecutive Questionnaire (DEX) in a large nonclinical sample of college students (n = 1,586). All participants completed the self-report version of the DEX. An exploratory factor analysis was first performed on a sub-sample (randomly split, n = 766) and produced a four-factor model (Volition, Intentionality, Inhibition, and Abstract Problem-Solving), which was similar to previous models reported in Western samples. In addition, a series of confirmatory factor analyses was conducted on the remaining sample (n = 820)...
December 12, 2017: PsyCh Journal
https://www.readbyqxmd.com/read/29235129/association-of-gene-polymorphisms-of-pattern-recognition-receptor-signalling-pathway-with-the-risk-and-severity-of-hand-foot-and-mouth-disease-caused-by-enterovirus-71-in-chinese-han-population
#7
Ya-Ping Li, Mei Li, Xiao-Li Jia, Hui-Ling Deng, Wen-Jun Wang, Feng-Ping Wu, Jun Wang, Shuang-Suo Dang
Hand, foot and mouth disease (HFMD) caused by enterovirus 71 (EV71) presents with a wide variety of clinical manifestations. Host immune response is a factor that influences disease susceptibility and severity. We investigated the potential association of gene polymorphisms in the pattern recognition receptor (PRR) pathway with the risk and severity of EV71 infection. A total of 180 EV71 HFMD cases (108 severe case; 72 mild cases) were enrolled. A group of 201 sex- and age-matched children was included as a control...
December 12, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/29234768/3d-printed-seed-planter-and-well-array-for-high-throughput-seed-germination-screening
#8
Hui Hui Chai, Yao Lu, Can Fang, Ya Dan Li, Yue Jun Kang, Chang Ming Li, Ling Yu
Seed germination is an important means of evaluating seed quality. In the present study, a well array for a seed germination experiment was designed and fabricated by 3D printing for the first time. Each hollow cone-shaped well can hold one seed, which not only prevented the seed from falling out of the well but also ensured that part of the seed was fully exposed to the sublayer of wet filter paper, allowing it to receive water for germination. Coupled with a 3D-printed seed planter, single seeds can be quickly placed into arrayed wells...
December 13, 2017: Integrative Biology: Quantitative Biosciences From Nano to Macro
https://www.readbyqxmd.com/read/29234461/discrimination-of-radix-polygoni-multiflori-from-different-geographical-areas-by-uplc-qtof-ms-combined-with-chemometrics
#9
Jin-Fa Tang, Wei-Xia Li, Fan Zhang, Yu-Hui Li, Ying-Jie Cao, Ya Zhao, Xue-Lin Li, Zhi-Jie Ma
Background: Nowadays, Radix Polygoni Multiflori (RPM, Heshouwu in Chinese) from different geographical origins were used in clinic. In order to characterize the chemical profiles of different geographical origins of RPM samples, ultra-high performance liquid chromatography quadrupole time of flight mass spectrometry (UPLC-QTOF/MS) combined with chemometrics (partial least squared discriminant analysis, PLS‑DA) method was applied in the present study. Methods: The chromatography, chemical composition and MS information of RPM samples from 18 geographical origins were acquired and profiled by UPLC-QTOF/MS...
2017: Chinese Medicine
https://www.readbyqxmd.com/read/29234402/extract-of-fructus-cannabis-ameliorates-learning-and-memory-impairment-induced-by-d-galactose-in-an-aging-rats-model
#10
Ning-Yuan Chen, Cheng-Wu Liu, Wei Lin, Yi Ding, Zhang-Ya Bian, Ling Huang, Hao Huang, Kai-Hui Yu, Si-Bang Chen, Yu Sun, Lei Wei, Jun-Hua Peng, Shang-Ling Pan
Hempseed (Cannabis sativa L.) has been used as a health food and folk medicine in China for centuries. In the present study, we sought to define the underlying mechanism by which the extract of Fructus Cannabis (EFC) protects against memory impairment induced by D-galactose in rats. To accelerate aging and induce memory impairment in rats, D-galactose (400 mg/kg) was injected intraperitoneally once daily for 14 weeks. EFC (200 and 400 mg/kg) was simultaneously administered intragastrically once daily in an attempt to slow the aging process...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29234369/bufei-yishen-granules-combined-with-acupoint-sticking-therapy-suppress-inflammation-in-chronic-obstructive-pulmonary-disease-rats-via-jnk-p38-signaling-pathway
#11
Yange Tian, Ya Li, Jiansheng Li, Suxiang Feng, Suyun Li, Jing Mao, Yang Xie, Xuefang Liu, Haoran Dong, Wanchun Zheng, Minghang Wang
The present study was initiated to explore the mechanism of the effects of Bufei Yishen granules combined with acupoint sticking therapy (Shu-Fei Tie) on inflammation regulated by c-Jun N-terminal kinase (JNK) and p38 MAPK signaling in COPD rats. Seventy-two rats were divided into healthy control (Control), Model, Bufei Yishen (BY), acupoint sticking (AS), Bufei Yishen + acupoint sticking (BY + AS), and aminophylline (APL) groups (n = 12 each). COPD rats were exposed to cigarette smoke and bacteria and were given the various treatments from weeks 9 through 20; all animals were sacrificed at the end of week 20...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29233191/mkrmda-multiple-kernel-learning-based-kronecker-regularized-least-squares-for-mirna-disease-association-prediction
#12
Xing Chen, Ya-Wei Niu, Guang-Hui Wang, Gui-Ying Yan
BACKGROUND: Recently, as the research of microRNA (miRNA) continues, there are plenty of experimental evidences indicating that miRNA could be associated with various human complex diseases development and progression. Hence, it is necessary and urgent to pay more attentions to the relevant study of predicting diseases associated miRNAs, which may be helpful for effective prevention, diagnosis and treatment of human diseases. Especially, constructing computational methods to predict potential miRNA-disease associations is worthy of more studies because of the feasibility and effectivity...
December 12, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/29232897/biomimetic-sensors-for-the-senses-towards-better-understanding-of-taste-and-odor-sensation
#13
REVIEW
Chunsheng Wu, Ya-Wen Du, Liquan Huang, Yaron Ben-Shoshan Galeczki, Ayana Dagan-Wiener, Michael Naim, Masha Y Niv, Ping Wang
Taste and smell are very important chemical senses that provide indispensable information on food quality, potential mates and potential danger. In recent decades, much progress has been achieved regarding the underlying molecular and cellular mechanisms of taste and odor senses. Recently, biosensors have been developed for detecting odorants and tastants as well as for studying ligand-receptor interactions. This review summarizes the currently available biosensing approaches, which can be classified into two main categories: in vitro and in vivo approaches...
December 11, 2017: Sensors
https://www.readbyqxmd.com/read/29232679/clinicopathological-and-prognostic-features-of-surgical-management-in-duodenal-gastrointestinal-stromal-tumors
#14
Hong Peng Shi, Min Lu Huang, Zhen Qiang Wang, Ya Nan Zheng, Zheng Lun Zhu, Birendra Kumar Sah, Wen Tao Liu, Min Yan, Zheng Gang Zhu, Chen Li
BACKGROUND AND OBJECTIVES: The rarity of duodenal gastrointestinal stromal tumors (DGIST) led to only limited data being available on their management and prognosis. We retrospectively analyzed the clinicopathological features, surgical treatments, adjuvant therapy, and prognosis of DGIST. METHODS: Sixty-one patients were identified at diagnosis of primary DGIST from February 2005 to December 2015. One hundred twenty six patients with small intestinal gastrointestinal stromal tutors (GIST) were selected as control groups...
December 12, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/29232318/significant-effect-of-acupressure-in-elevating-blood-stem-cell-factor-during-chemotherapy-in-patients-with-gynecologic-cancer
#15
Ya-Wen Shih, Shun-Fa Yang, Ming-Hsien Chien, Ching-Wen Chang, Vincent H S Chang, Hsiu-Ting Tsai
BACKGROUND: Chemotherapy is used mainly to treat and control the progression of gynecological cancer. Bone marrow suppression, one of the adverse side effects of chemotherapy, may decrease immune function, increasing the risk of serious, fatal infections. PURPOSE: The aims of this study were to evaluate the effectiveness of noninvasive acupressure in preventing and diminishing chemotherapy-induced myelosuppression in patients with gynecologic cancer and to determine whether this effect is associated with the regulation of the expressions of granulocyte-macrophage colony-stimulating factor and stem cell factor (SCF)...
December 9, 2017: Journal of Nursing Research: JNR
https://www.readbyqxmd.com/read/29232123/dendrite-free-li-metal-battery-enabled-by-a-thin-asymmetric-solid-electrolyte-with-engineered-layers
#16
Hui Duan, Ya-Xia Yin, Yang Shi, Peng-Fei Wang, Xu-Dong Zhang, Chun-Peng Yang, Ji-Lei Shi, Rui Wen, Yu-Guo Guo, Li-Jun Wan
The key bottleneck troubling the application of solid electrolyte is the contradictory requirements from Li-metal and cathode, which need high modulus to block Li-dendrite penetration and flexibility to enable low interface resistance, respectively. This study describes a thin asymmetrical design of solid electrolyte to address these shortcomings. In this architecture, a rigid ceramic-layer modified with an ultrathin polymer is toward Li-metal to accomplish dendrite-suppression of Li-anode, and a soft polymer-layer spreads over the exterior and interior of cathode to endow connected interface simultaneously...
December 12, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29231713/enzyme-responsive-bioprobes-based-on-the-mechanism-of-aggregation-induced-emission
#17
Jie Shi, Ya Li, Qianqian Li, Zhen Li
Enzymes play an indispensable role in maintaining the normal life activities. The abnormalities of content and activity in specific enzymes are usually associated with the occurrence and closely related the development of major diseases. Correspondingly, fluorescent bioprobes with distinctive sensing mechanisms and different functionalities have attracted growing attention, as convenient tools for optical probing and monitoring the activity of enzyme. Ideally and excitedly, the recently emerged luminogens with an aggregation-induced emission (AIE) feature could perfectly overcome the aggregation-caused quenching (ACQ) effect of conventional bioprobes...
December 12, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29231226/strong-magnetic-resonances-and-largely-enhanced-second-harmonic-generation-of-colloidal-mos2-and-res2-au-nanoantennas-with-assembled-2d-nanosheets
#18
Si-Jing Ding, Zhi-Jun Luo, Ya-Ming Xie, Gui-Ming Pan, Yun-Hang Qiu, Kai Chen, Li Zhou, Jianfang Wang, Hai-Qing Lin, Qu-Quan Wang
Colloidal disk-like and sphere-like MoS2 nanoantennas are synthesized. They consist of curly and interlaced 2D nanosheets. The resonance peak of the MoS2 nanoantennas can be tuned from 500 to 900 nm by adjusting the size and shape. The strong magnetic and electric resonances of the dielectric antennas are revealed by theoretical calculations with Mie theory. The second harmonic generation (SHG) of the exfoliated nanosheets and the synthesized nanodisks and nanospheres is investigated and compared by scanning the excitation laser wavelength...
December 12, 2017: Nanoscale
https://www.readbyqxmd.com/read/29231215/involvement-of-fak-mediated-bmp-2-smad-pathway-in-mediating-osteoblast-adhesion-and-differentiation-on-nano-ha-chitosan-composite-coated-titanium-implant-under-diabetic-conditions
#19
Xiang-Yu Ma, Ya-Fei Feng, Tian-Sheng Wang, Wei Lei, Xiang Li, Da-Peng Zhou, Xin-Xin Wen, Hai-Long Yu, Liang-Bi Xiang, Lin Wang
Chitosan (CS)-based hydroxyapatite (HA) composites have emerged as a novel strategy for promoting bone regeneration. Here nanophase HA/CS composite coated porous titanium implants (nCT) were fabricated and their biological behavior under diabetic conditions was investigated. We proposed that the focal adhesion kinase (FAK)-mediated BMP-2/Smad pathway played a role in mediating the promotive effect of nCTs on osteoblast adhesion and differentiation under diabetes-induced high reactive oxygen species (ROS) condition...
December 12, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/29229945/molecular-thresholds-of-its2-and-their-implications-for-molecular-evolution-and-species-identification-in-seed-plants
#20
Ying Qin, Meihui Li, Yong Cao, Ya Gao, Wei Zhang
Although molecular data have revealed huge amounts of plant diversity, interpreting genetic diversity into entities corresponding to species is still challenging. Taxonomic ranking based on genetic distance has been used extensively, but the results have been open to dispute, while the application of the strategy to plants has been restricted to a small number of cases. Here, levels of internal transcribed spacer 2 (ITS2) sequence variation were examined from 17,203 sequences, representing 5,439 species in 113 genera of seed plants, to ascertain the association between species status and their molecular divergence...
December 11, 2017: Scientific Reports
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