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To ensure that large precision instruments and equipment are in the best working condition, it is necessary to provide a suitable working environment for them. At this time, there is a high requirement for the vibration of the foundation at the location. Measuring the foundation vibration parameters, analyzing the foundation vibration state, and taking necessary damping measures during the construction process to provide basis are the premise of equipment installation and normal work. Combined with an application example, this paper briefly introduces the general situation of a project blasting, and obtains the basic characteristic parameters such as the peak velocity of ground motion and the time of arrival during the blasting operation; Based on the basic principle of regression analysis, the relationship between the peak velocity and the distance between the detonation centers and the charge weight is obtained by fitting the Sadovsky formula.

Commercial kitchens may pose significant health risks to workers because they generate large quantities of fine particulate matter (PM

Indoor stadium is an important place for physical exercise and sports practice, but few studies have considered the impact of indoor environment on exercise performance. Anaerobic exercise refers to exercise with high load intensity and instantaneous intensity. Many kinds of exercise performance are closely related to anaerobic exercise. Therefore, the purpose of this study was to examine the influence of temperature, relative humidity and CO

p204, a murine member of the interferon-inducible p200 protein family, and its human analogue, IFI16, have been shown to function as tumor suppressors in vitro, but the molecular events involved, in particular in vivo, remain unclear. Herein we induced the Lewis Lung carcinoma (LLC) murine model of human lung cancer in p204 null mice (KO) and their control littermates (WT). We compared the transcriptome in spleen from WT and p204 KO mice using a high-throughput RNA-sequencing array. A total 30.02 Gb of clean data were obtained, and overall Q30% was greater than 90.54%. More than 75% of clean data from 12 transcriptome samples were mapped to exons. The results showed that only 11 genes exhibited altered expression in untreated p204 KO mice relative to untreated WT mice, while 393 altered genes were identified in tumor-bearing p204 KO mice when compared with tumor-bearing WT mice. Further differentially expressed gene cluster and gene ontology consortium classification revealed that numerous cytokines and their receptors, chemoattractant molecules, and adhesion molecules were significantly induced in p204 KO mice. This study provides novel insights to the p204 network in anti-tumor immune response and also presents a foundation for future work concerning p204-mediated gene expressions and pathways.

p204, a murine member of an interferon-inducible p200 family, was reported to recognize intracellular viral and bacterial DNAs, however, its role in the innate immunity in vivo remains unknown due to the lack of p204-deficient animal models. In this study we first generated the p204−/− mice. Unexpectedly, p204 deficiency led to significant defect in extracellular LPS signaling in macrophages, as demonstrated by dramatic reductions of LPS-mediated IFN-β and pro-inflammatory cytokines. The serum levels of IFN-β and pro-inflammatory cytokines were also significantly reduced in p204−/− mice following LPS challenge. In addition, p204−/− mice were resistant to LPS-induced shock. LPS-activated NF-ĸB and IRF-3 pathways were all defective in p204-deficient macrophages. p204 binds to TLR4 through its Pyrin domain, and it is required for the dimerization of TLR4 following LPS-challenge. Collectively, p204 is a critical component of canonical LPS-TLR4 signaling pathway, and these studies also suggest that p204 could be a potential target to prevent and treat inflammatory and infectious diseases. Keywords: p204, LPS, TLR4, IFN-β, Inflammatory responses, Macrophages

// Yongxiang Shi 1 , Weishan Chen 1 , Qinghuai Li 2 , Zhaoming Ye 1 1 Department of Orthopaedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China 2 Department of Medicine, 3rd Hospital of Henan Province, Henan, China Correspondence to: Zhaoming Ye, email: ye_zhaoming@163.com Keywords: osteosarcoma, papillary thyroid cancer, AR, repeat, CAG Received: May 24, 2016 Accepted: August 13, 2016 Published: September 08, 2016 ABSTRACT The androgen receptor ( AR ) is involved in the differentiation and growth of many cancers. We hypothesized that two microsatellite polymorphic variants, AR (CAG)n and (GGN)n repeats, were also associated with the development of Papillary thyroid cancer (PTC) and Osteosarcoma. In current study, we conducted two case-control studies in a Chinese population to investigate the possible relationship between these two AR repeat polymorphisms and the risk of PTC and Osteosarcoma. The AR CAG repeat length was significantly associated with both risk of PTC and Osteosarcoma. Subjects with shorter AR CAG repeats had a higher risk of developing PTC (OR = 1.47, 95% CI: 1.17–1.85, P = 0.001) and Osteosarcoma (OR = 1.53, 95% CI: 1.19–1.97, P = 9.2 x 10 –4 ). Specifically, shorter GGN repeats also contribute a significant increased risk of Osteosarcoma (OR = 1.35, 95% CI: 1.03–1.77, P = 0.030). Our results contribute to a better understanding of the complex hormone related mechanisms underlying PTC and Osteosarcoma.

At present, most unmanned aerial vehicles (UAVs) are powered by traditional aero modelling lithium batteries, which have poor endurance and cannot operate continuously for a long time. It greatly limits the application fields of UAVs. To tackle this problem, we design a fully-automatic UAV docking platform that can work under no human situation and assistance to charge the aircraft with insufficient power to help the drone extend its battery life. It also provides an implementation solution for a fully automatic drone docking platform with wireless charging, UAV takeoff and returns, auxiliary positioning, and relay communication. The system mainly includes apron part, docking platform protective shell, solar panel, power conversion equipment, wireless charging base, satellite positioning and communication module, radio positioning signal generator, and radio relay communication module, etc. The power system of the apron part uses electric pushrods.

The androgen receptor (AR) is involved in the differentiation and growth of many cancers. We hypothesized that two microsatellite polymorphic variants, AR (CAG)n and (GGN)n repeats, were also associated with the development of Papillary thyroid cancer (PTC) and Osteosarcoma. In current study, we conducted two case-control studies in a Chinese population to investigate the possible relationship between these two AR repeat polymorphisms and the risk of PTC and Osteosarcoma. The AR CAG repeat length was significantly associated with both risk of PTC and Osteosarcoma. Subjects with shorter AR CAG repeats had a higher risk of developing PTC (OR = 1.47, 95% CI: 1.17-1.85, P = 0.001) and Osteosarcoma (OR = 1.53, 95% CI: 1.19-1.97, P = 9.2 x 10-4). Specifically, shorter GGN repeats also contribute a significant increased risk of Osteosarcoma (OR = 1.35, 95% CI: 1.03-1.77, P = 0.030). Our results contribute to a better understanding of the complex hormone related mechanisms underlying PTC and Osteosarcoma.

p204, an inteferon-inducible protein, is known to play an important role in modulating cell proliferation, cell cycling, and the differentiation of various tissues, including osteoblasts. In order to determine the role of p204 during development in vivo, the teleost zebrafish (Danio rerio), an established vertebrate model for developmental studies, was employed. p204 cDNA was introduced into zebrafish by microinjection, and p204 was ectopically expressed throughout the whole embryo during the early stages of zebrafish embryogenesis, then its expression gradually decreased, mainly in ventrally located cells and retina capsules. Importantly, overexpression of p204 in zebrafish resulted in striking malformations such as bent spine and expanded belly. Furthermore, the expressions of some genes (vent, runx2b, osn) involved in dorsoventral patterning and osteogenesis were significantly upregulated after p204 injection. This study provides not only the in vivo evidences demonstrating the role of p204 during embryonic development, but also new insights into the molecular mechanism by which p204 mediate osteogenesis.

This randomized, double-blind study was carried out to evaluate the effectiveness of etoricoxib in controlling the pain during lumbar fusion surgery of the degenerative lumbar scoliosis patients. We found that perioperative use of etoricoxib produced a significant reduction in the degree of pain compared to the patients treated with placebo. Etoricoxib eased the pain and helped to manage the discomfort of lumbar fusion surgery. In addition, etoricoxib was well tolerated as it caused no serious adverse reaction, suggesting a safe profile. Etoricoxib also appeared to ensure and promote the positive effect of surgery, however, insignificantly. Thus, the results suggest that etoricoxib was effective in safely managing the pain during the lumbar fusion surgery and recovery thereafter.

This work studied the design, construction, and cleavage analysis of zinc finger nucleases (ZFNs) that could cut the specific sequences within microphthalmia - associate transcription factor (mitfa) of zebra fish. The target site and ZFPs were selected and designed with zinc finger tools, while the ZFPs were synthesized using DNAWorks and two-step PCR. The ZFNs were constructed, expressed, purified, and analyzed in vitro. As expected, the designed ZFNs could create a double-stand break (DSB) at the target site in vitro. The DNAWorks, two-step PCR, and an optimized process of protein expression were firstly induced in the construction of ZFNs successfully, which was an effective and simplified protocol. These results could be useful for further application of ZFNs - mediated gene targeting.

Granulin-epithelin precursor (GEP) is an autocrine growth factor that has been implicated in embryonic development, tissue repair, tumorigenesis, and inflammation. Here we report that GEP was expressed in skeletal muscle tissue and its level was differentially altered in the course of C2C12 myoblast fusion. The GEP expression during myoblast fusion was a consequence of MyoD transcription factor binding to several E-box (CANNTG) sequences in the 5′-flanking regulatory region of GEP gene, followed by transcription. Recombinant GEP potently inhibited myotube formation from C2C12 myoblasts whereas the knockdown of endogenous of GEP via a siRNA approach accelerated the fusion of myoblasts to myotubes. Interestingly, the muscle fibers of GEP knockdown mice were larger in number but noticeably smaller in size when compared to the wild-type. Mechanistic studies revealed that during myoblast fusion, the addition of GEP led to remarkable reductions in the expressions of muscle-specific transcription factors, including MyoD. In addition, the regulation of myotube formation by GEP is mediated by the anti-myogenic factor JunB, which is upregulated following GEP stimulation. Thus, GEP growth factor, JunB, and MyoD transcription factor form a regulatory loop and act in concert in the course of myogenesis.

Osteogenesis is a highly complex and ordered developmental process in vertebrates. As a key role on osteogenesis, cbfa1 regulates its downstream genes by binding to the target DNA or forming a ternary complex in which pRb binds p204 to cbfa1. p204 is also identified as an important regulator in modulating cell proliferation, cell cycling, skeletogenesis and so on. Exogenous p204 and cbfa1 were introduced into zebrafish embryos to study their effects on skeleton development in vivo. The results showed that p204 and cbfa1 were expressed throughout the whole embryo at early embryogenesis stages, then their expression decreased gradually and focused on ventral cells and retina capsules. Malformations and differentiation of cartilage were induced by foreign p204 and cbfa1 injection, and the top level of malformation rate was induced by p204&cbfa1 double injection. Moreover, the expression of three genes (osx, tcf7 and vent) involved in osteogenesis and dorsoventral patterning were significantly upregulated after injection. Similar with the malformation rate, the top expression level of the three genes is also caused by double injection. The results of acid-free double staining showed that endochondral ossification was more obviously affected by p204&cbfa1 injection compared with other injection groups. This study showed that p204 and cbfa1 have the synergistic effect on osteogenesis and dorsoventral patterning, not only in vitro, but also in zebrafish embryogenesis.

Various zebrafish (Danio rerio) malformations, such as cyrtosis and short tails, were found in the juvenile stage after the embryos were exposed to ultraviolet B (UVB) (72 mJ/cm2). Grape seed proanthocyandin extract (GSE) (1 mg/ml) was injected into early zebrafish gastrula to protect the embryos against UVB irradiation. The rates of mortality and abnormalities were significantly lower in GSE-treated embryos than in the control group. Total antioxidant capacity (T-AOC) and malonaldehyde (MDA) content of juvenile zebrafish were determined to evaluate the antioxidant status accurately. The results showed that the T-AOC content of early GSE-UVB treated embryos was increased and the MDA content was reduced compared to those exposed to UVB alone. The gene expression pattern in different groups were further investigated by whole-mount in situ hybridization. Caspase-3 was used as a marker for apoptosis. At 24 hpf (hour post fertilization) and 36 hpf stages, the expression of caspase-3 was enhanced after UVB irradiation and GSE injection reduced the expression of caspase-3 after UVB irradiation. These results demonstrated that GSE alleviated the amount of damage following UVB irradiation in zebrafish embryos. This provided evidence for GSE's further application as an antioxidant.

The sliding and hopping models encapsulate the essential protein-DNA binding process for binary complex formation and dissociation. However, the effects of a cofactor protein on the protein-DNA binding process that leads to the formation of a ternary complex remain largely unknown. Here we investigate the effect of the cofactor Sox2 on the binding and unbinding of Oct1 with the Hoxb1 control element. We simulate the association of Oct1 with Sox2-Hoxb1 using molecular dynamics simulations, and the dissociation of Oct1 from Sox2-Hoxb1 using steered molecular dynamics simulations, in analogy to a hopping event of Oct1. We compare the kinetic and thermodynamic properties of three model complexes (the wild-type and two mutants) in which the Oct1-DNA base-specific interactions or the Sox2-Oct1 protein-protein interactions are largely abolished. We find that Oct1-DNA base-specific interactions contribute significantly to the total interaction energy of the ternary complex, and that nonspecific Oct1-DNA interactions are sufficient for driving the formation of the protein-DNA interface. The Sox2-Oct1 protein-protein binding interface is largely hydrophobic, with remarkable shape complementarity. This interface promotes the formation of the ternary complex and slows the dissociation of Oct1 from its DNA-binding site. We propose a simple two-step reaction model of protein-DNA binding, called the tethered-hopping model, that explains the importance of the cofactor Sox2 and may apply to similar ternary protein-DNA complexes.