keyword
MENU ▼
Read by QxMD icon Read
search

Liminality

keyword
https://www.readbyqxmd.com/read/29792963/extraction-characterization-and-biological-activity-of-sulfated-polysaccharides-from-seaweed-dictyopteris-divaricata
#1
Yinxin Cui, Xin Liu, Shufang Li, Limin Hao, Juan Du, DaHai Gao, Qiaozhen Kang, Jike Lu
Dictyopteris divaricata is a kind of important brown algae with many biological activities. It has been receiving more and more attention, yet there are rarely studies done on its polysaccharides. In this study, the optimum extraction and biological activity of seaweed polysaccharides from Dictyopteris divaricata (DDSP) were investigated. Response surface methodology (RSM), based on a three-level, three-variable Box-Behnken design (BBD), was employed to obtain the best possible combinations for maximum polysaccharides yield...
May 21, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29792950/transcriptome-profile-analysis-reveals-the-ontogenesis-of-rooted-chichi-in-ginkgo-biloba-l
#2
Xiaojing Liu, Limin Sun, Qikui Wu, Xiaoyan Men, Linmei Yao, Shiyan Xing
The Ginkgo biloba L. chichi is a unique organ. To explore the molecular mechanisms underlying the ontogenesis of G. biloba chichi, we used RNA-seq to analyse the transcriptome profile of rooted chichi at two developmental stages (ch1 and ch2) and nearby tissues (ck), and each sample had three biological replicates. A total of 57.74 Gb of clean bases were generated in nine cDNA libraries. These bases were de novo assembled into 68,277 unigenes with average length of 844 bp, and 51.47% of the unigenes had a match in at least one public database...
May 21, 2018: Gene
https://www.readbyqxmd.com/read/29791334/improved-force-prediction-model-for-grinding-zerodur-based-on-the-comprehensive-material-removal-mechanism
#3
Guoyan Sun, Lingling Zhao, Qingliang Zhao, Limin Gao
There have been few investigations dealing with the force model on grinding brittle materials. However, the dynamic material removal mechanisms have not yet been sufficiently explicated through the grain-workpiece interaction statuses while considering the brittle material characteristics. This paper proposes an improved grinding force model for Zerodur, which contains ductile removal force, brittle removal force, and frictional force, corresponding to the ductile and brittle material removal phases, as well as the friction process, respectively...
May 10, 2018: Applied Optics
https://www.readbyqxmd.com/read/29790231/a-qualitative-investigation-of-hospital-visitors-experiences-using-the-analytic-lens-of-liminality-informing-nursing-practice-and-policy
#4
Janet Underwood, Christine Rhodes
This research aimed to inform nursing practice and policy by identifying satisfying and problematic experiences of hospital visitors during the hospitalisation episode of a significant other. An extensive contextual review revealed that healthcare systems in advanced economies face multiple pressures and that in England, the government leaves the determination of hospital visiting rules to individual trusts. The analytic lens of liminality provides rich interpretations of visitors' accounts and demonstrates the importance to visitors of structure (hospital rules and systems) and communitas (social bonding among liminal personae)...
May 22, 2018: Nursing Inquiry
https://www.readbyqxmd.com/read/29786076/c-myc-inhibits-myoblast-differentiation-and-promotes-myoblast-proliferation-and-muscle-fibre-hypertrophy-by-regulating-the-expression-of-its-target-genes-mirnas-and-lincrnas
#5
Wen Luo, Jiahui Chen, Limin Li, Xueyi Ren, Tian Cheng, Shiyi Lu, Raman Akinyanju Lawal, Qinghua Nie, Xiquan Zhang, Olivier Hanotte
The transcription factor c-Myc is an important regulator of cellular proliferation, differentiation and embryogenesis. While c-Myc can inhibit myoblast differentiation, the underlying mechanisms remain poorly understood. Here, we found that c-Myc does not only inhibits myoblast differentiation but also promotes myoblast proliferation and muscle fibre hypertrophy. By performing chromatin immunoprecipitation and high-throughput sequencing (ChIP-seq), we identified the genome-wide binding profile of c-Myc in skeletal muscle cells...
May 21, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29785090/semen-brassicae-ameliorates-hepatic-fibrosis-by-regulating-transforming-growth-factor-%C3%AE-1-smad-nuclear-factor-%C3%AE%C2%BAb-and-akt-signaling-pathways-in-rats
#6
Si Cao, Baoping Zheng, Tao Chen, Xinfeng Chang, Bao Yin, Zhihua Huang, Ping Shuai, Limin Han
Purpose: There is no effective treatment for liver fibrosis, which is a common phase during the progression of many chronic liver diseases to cirrhosis. Previous studies found that Semen Brassicae therapy can effectively improve the clinical symptoms of patients with asthma, allergic rhinitis, and chronic lung diseases; however, its effects on liver fibrosis in rats and its possible mechanisms of action remain unclear. Methods: Rats were injected intraperitoneally with 4% thioacetamide aqueous solution (5 mL·kg-1 ) at a dose of 200 mg·kg-1 twice a week for 8 consecutive weeks to establish the liver fibrosis model and were then treated with different concentrations of Semen Brassicae extract...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29782352/an-update-on-the-management-of-pancreatic-neuroendocrine-tumors
#7
Limin Gao, Nikola S Natov, Kevin P Daly, Faisal Masud, Sadia Chaudhry, Mark J Sterling, Muhammad W Saif
Pancreatic neuroendocrine tumors (PNETs) are a rare and heterogeneous group of neoplasia and differ in their clinical presentation, behavior, and prognosis based on both histological features and cancer stage at the time of diagnosis. Although small-sized tumors can be surgically resected, locally advanced and metastatic tumors confer a poor prognosis. In addition, only limited treatment options are available to the latter group of patients with PNETs, such as hormonal analogs, cytotoxic agents, and targeted therapy...
May 8, 2018: Anti-cancer Drugs
https://www.readbyqxmd.com/read/29778158/community-structures-and-population-dynamics-of-candidatus-accumulibacter-in-activated-sludges-of-wastewater-treatment-plants-using-ppk1-as-phylogenetic-marker
#8
Wei Zeng, Limin Zhang, Pengchao Fan, Jingjing Guo, Yongzhen Peng
Candidatus Accumulibacter has been identified as dominant polyphosphate-accumulating organisms (PAOs) in enhanced biological phosphorus (P) removal (EBPR) from wastewater. This study revealed the relevance of community structure, abundance and seasonal population dynamics of Candidatus Accumulibacter to process operation of wastewater treatment plants (WWTPs) in China using ppk1 gene as phylogenetic marker. All sludge samples had properties of denitrifying P removal using nitrate as an electron acceptor. Accumulibacter abundance in the anaerobic-anoxic-oxic (A2 O) process was the highest (26% of total bacteria), and higher in winter than in summer with a better EBPR performance...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29778150/adsorption-of-vocs-on-reduced-graphene-oxide
#9
Lian Yu, Long Wang, Weicheng Xu, Limin Chen, Mingli Fu, Junliang Wu, Daiqi Ye
A modified Hummer's method was adopted for the synthesis of graphene oxide (GO) and reduced graphene oxide (rGO). It was revealed that the modified method is effective for the production of GO and rGO from graphite. Transmission electron microscopy (TEM) images of GO and rGO showed a sheet-like morphology. Because of the presence of oxygenated functional groups on the carbon surface, the interlayer spacing of the prepared GO was higher than that of rGO. The presence of OH and CO groups in the Fourier transform infrared spectra (FTIR) spectrum and G-mode and 2D-mode in Raman spectra confirmed the synthesis of GO and rGO...
May 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29777116/genetic-risk-score-of-common-genetic-variants-for-impaired-fasting-glucose-and-newly-diagnosed-type-2-diabetes-influences-oxidative-stress
#10
Minjoo Kim, Minkyung Kim, Limin Huang, Sun Ha Jee, Jong Ho Lee
We tested the hypothesis that the cumulative effects of common genetic variants related to elevated fasting glucose are collectively associated with oxidative stress. Using 25 single nucleotide polymorphisms (SNPs), a weighted genetic risk score (wGRS) was constructed by summing nine risk alleles based on nominal significance and a consistent effect direction in 1,395 controls and 718 patients with impaired fasting glucose (IFG) or newly diagnosed type 2 diabetes. All the participants were divided into the following three groups: low-wGRS, middle-wGRS, and high-wGRS groups...
May 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29773840/rna-seq-and-uhplc-q-tof-ms-based-lipidomics-study-in-lysiphlebia-japonica
#11
Xueke Gao, Junyu Luo, Limin Lü, LiJuan Zhang, Shuai Zhang, Jinjie Cui
Lipids play an important role in energy storage, membrane structure stabilization and signaling. Parasitoids are excellent models to study lipidomics because a majority of them do not accumulate during their free-living life-stage. Studies on parasitoids have mostly focused on the changes in the lipids and gene transcripts in hosts and little attention has been devoted to lipidomics and transcriptomics changes in parasitoids. In this study, a relative quantitative analysis of lipids and their gene transcripts in 3-days-old Lysiphlebia japonica larva (3 days after spawning) and pupae were performed using liquid chromatography, mass spectrometry and RNA-seq...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29771686/spleen-mediates-a-distinct-hematopoietic-progenitor-response-supporting-tumor-promoting-myelopoiesis
#12
Chong Wu, Huiheng Ning, Mingyu Liu, Jie Lin, Shufeng Luo, Wenjie Zhu, Jing Xu, Wen-Chao Wu, Jing Liang, Chun-Kui Shao, Jiaqi Ren, Bin Wei, Jun Cui, Min-Shan Chen, Limin Zheng
Cancer progression is associated with alterations of intra- and extramedullary hematopoiesis to support a systemic tumor-promoting myeloid response. However, the functional specialty, mechanism, and clinical relevance of extramedullary hematopoiesis (EMH) remain unclear. Here we showed that the heightened splenic myelopoiesis in tumor-bearing hosts was not only characterized by the accumulation of myeloid precursors, but also associated with profound functional alterations of splenic early hematopoietic stem/progenitor cells (HSPCs)...
May 17, 2018: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29769413/synergistic-anti-cancer-effects-of-nanocarrier-loaded-with-berberine-and-mirna-122
#13
Lei Li, Xiao Li, Xin Huang, Weilai Jiang, Letian Liu, Chunning Hou, Yanqing Yang, Lei Zhang, Xiaodan Zhang, Longwei Ye, Jie Yuan, Guolin Li, Haiming Sun, Limin Mao
We introduced polyethyleneimine-cholesterol (PC) as a nanocarrier incorporating berberine (BER) and miRNA122 (miR-122) for the treatment of oral squamous cell carcinoma. BER was stabilized by incorporating PC to form ber -PC. Ber -PC was further electrostatically complexed with miR-122 to yield mr-ber- PC for the co-delivery of BER and miR-122. mr-ber- PC treatment dramatically decreased the level of invasion and migration of oral squamous cell carcinoma cells compared with single drug treatments. This study suggested that PC could be a multifunctional nanocarrier for the co-delivery of anti-cancer drug BER and miR-122 to significantly increase the anti-cancer therapeutic effects...
May 16, 2018: Bioscience Reports
https://www.readbyqxmd.com/read/29768967/interleukin-1-receptor-1-deletion-in-focal-and-diffuse-experimental-traumatic-brain-injury-in-mice
#14
Joon Yong Chung, Nicolas Krapp, Limin Wu, Sevda Lule, Lauren McAllister, William Edmiston Iii, Samantha Martin, Emily Levy, Tanya Songtachalert, John Sherwood, Erin Buckley, Bharat Sanders, Saef Izzy, Suzanne Hickman, Shuzhen Guo, Josephine Lok, Joseph El Khoury, Eng Lo, David Kaplan, Michael Whalen
Important differences in the biology of focal and diffuse traumatic brain injury (TBI) subtypes may result in unique pathophysiological responses to shared molecular mechanisms. Interleukin-1 (IL-1) signaling has been tested as a potential therapeutic target in preclinical models of cerebral contusion and diffuse TBI, and in a phase II clinical trial, but no published studies have examined IL-1 signaling in an impact/acceleration closed head injury (CHI) model. We hypothesized that genetic deletion of IL-1 receptor-1 (IL-1R1 KO) would be beneficial in focal (contusion) and CHI in mice...
May 17, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29768384/therapeutic-experience-of-severe-and-recurrent-secondary-hyperparathyroidism-in-a-patient-on-hemodialysis-for-18-years-a-case-report
#15
Mingwen Zhu, Zongming Zhang, Fangcai Lin, Jieping Miao, Pei Wang, Chong Zhang, Hongwei Yu, Hai Deng, Zhuo Liu, Limin Liu, Baijiang Wan, Haiyan Yang, Mengmeng Song, Yue Zhao, Nan Jiang, Zichao Zhang, Zhenya Zhang, Lijie Pan
INTRODUCTION: For patients with refractory secondary hyperparathyroidism (SHPT), parathyroidectomy (PTX) has received increasing attention. However, evidence-based medicine shows that there is still controversy regarding surgical methods, efficacy, and safety. We retrospectively analyzed the process of diagnosis and treatment in one patient with severe SHPT and long-term chronic renal failure (CRF), so as to further improve the therapeutic effect. CASE PRESENTATION: A 61-year-old female with SHPT and CRF manifested as no urine for 18 years, underwent PTX 4 times since September 2010, with satisfactory final recovery...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29768361/a-novel-kiaa0196-mutation-in-a-chinese-patient-with-spastic-paraplegia-8-a-case-report
#16
Limin Ma, Yingying Shi, Zhongcan Chen, Shujian Li, Weiwei Qin, Jiewen Zhang
RATIONALE: We report a case of Spastic paraplegia 8 (SPG8) with a novel mutation of KIAA0196 gene. PATIENTS CONCERNS: A 12-year-old boy presented as ankle sprained, lower limb stiffness, abnormal gait since he was 5 years old. DIAGNOSES: The next generation sequence showed a novel c.1128delG (p.L376fs) mutation in KIAA0196 gene, the electromyography showed the pyramidal tract conduction dysfunction and deep sensory conduction abnormalities of lower limbs without motor neuron damage...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29765910/a-promising-ifn-deficient-system-to-manufacture-ifn-sensitive-influenza-vaccine-virus
#17
Can Chen, Wenhui Fan, Jing Li, Weinan Zheng, Shuang Zhang, Limin Yang, Di Liu, Wenjun Liu, Lei Sun
Interferon (IFN)-sensitive and replication-incompetent influenza viruses are likely to be the alternatives to inactivated and attenuated virus vaccines. Some IFN-sensitive influenza vaccine candidates with modified non-structural protein 1 (NS1) are highly attenuated in IFN-competent hosts but induce robust antiviral immune responses. However, little research has been done on the manufacturability of these IFN-sensitive vaccine viruses. Here, RIG-I-knockout 293T cells were used to package the IFN-sensitive influenza A/WSN/33 (H1N1) virus expressing the mutant NS1 R38A/K41A...
2018: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/29763397/-memento-mori-and-photographic-perspective-of-roadside-trauma
#18
David B Nance, Sara Scarlet, Elizabeth B Dreesen
David Nance's photographs invite us to cross the liminal space between road and roadside and to consider the experience that trauma surgeons share with injured patients and the families of the injured and the dead. Just as trauma surgeons use the tools of science and surgery to make order out of the chaos of "the scene," so patients' families use art, found objects, and grief to transform anonymous roadsides into specific, personal remembrances. Bound together by the uncertainties of trauma, we can all stand at the side of the road bearing witness to both the inevitability and unpredictability of death...
May 1, 2018: AMA Journal of Ethics
https://www.readbyqxmd.com/read/29762623/nanowire-lasers-as-intracellular-probes
#19
Xiaoqin Wu, Qiushu Chen, Peizhen Xu, Yu-Cheng Chen, Biming Wu, Rhima M Coleman, Limin Tong, Xudong Fan
We investigate a cadmium sulfide (CdS) nanowire (NW) laser that is spontaneously internalized into a single cell to serve as a stand-alone intracellular probe. By pumping with nano-joule light pulses, green laser emission (500-520 nm) can be observed inside cells with a peak linewidth as narrow as 0.5 nm. Due to the sub-micron diameter (∼200 nm), the NW has an appreciable fraction of the evanescent field outside, facilitating a sensitive detection of cellular environmental changes. By monitoring the lasing peak wavelength shift in response to the intracellular refractive index change, our NW laser probe shows a sensitivity of 55 nm per RIU (refractive index units) and a figure of merit of approximately 98...
May 15, 2018: Nanoscale
https://www.readbyqxmd.com/read/29761869/microrna-665-promotes-the-proliferation-and-matrix-degradation-of-nucleus-pulposus-through-targeting-gdf5-in-intervertebral-disc-degeneration
#20
Hongyu Tan, Liang Zhao, Ruipeng Song, Yilin Liu, Limin Wang
Growing evidences suggested that microRNAs (miRNAs) played important roles in the development of intervertebral disc degeneration (IDD). However, the expression level and function of miR-665 in IDD remain unknown. In this study, we showed that the expression level of miR-665 was upregulated in degenerative human NP samples. In addition, miR-665 expression level gradually increased with the exacerbation of disc degeneration grade. Moreover, miR-665 expression level was positively associated with the Pfirrmann grade...
May 15, 2018: Journal of Cellular Biochemistry
keyword
keyword
91039
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"