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Characterization of a novel ETX/MTX2 domain-presenting parasporal crystal protein from Bacillus toyonensis HSY140 strain toyonensis HSY140菌株一种新的ETX/MTX2结构域拟孢晶体蛋白的鉴定
4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2023-01-01 DOI: 10.2306/scienceasia1513-1874.2023.077
Yinghong Jin, Yiming Huang, Jiali He, Yangyang Wang, Yuquan Xu, Ruiping Wang, Wenfei Zhang
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引用次数: 0
Identification, in silico characterization, and expression analysis of NBS-LRR class of R genes against stem and crown rot disease in Trifolium alexandrinum L. 亚历山大三叶草茎腐病和冠腐病抗病基因NBS-LRR类的鉴定、鉴定及表达分析
4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2023-01-01 DOI: 10.2306/scienceasia1513-1874.2022.141
Bukhtawer Nasir, Siddra Ijaz, Imran Ul Haq, Nasir Ahmad Khan, Amer Habib
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引用次数: 1
On value distribution of certain delay-differential polynomials 一类时滞微分多项式的值分布
IF 1.2 4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2022-05-15 DOI: 10.2306/scienceasia1513-1874.2023.010
Nan Li, Lian-Zhong Yang
Given an entire function $f$ of finite order $rho$, let $L(z,f)=sum_{j=0}^{m}b_{j}(z)f^{(k_{j})}(z+c_{j})$ be a linear delay-differential polynomial of $f$ with small coefficients in the sense of $O(r^{lambda+varepsilon})+S(r,f)$, $lambda
给定一个有限阶$rho$的完整函数$f$,设$L(z,f)=sum_{j=0}^{m}b_{j}(z)f^{(k_{j})}(z+c_{j})$是$f$的线性延迟微分多项式,具有$O(r^{lambda+varepsilon})+S(r,f)$, $lambda
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引用次数: 0
Effects of different substrates on the growth and composition of periphyton in the low saline groundwater system 不同基质对低盐地下水系统中周围植物生长和组成的影响
IF 1.2 4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2022-01-01 DOI: 10.2306/scienceasia1513-1874.2022.005
K. Amirtharaj, B. Ahilan, C. Rajagopalsamy, R. George, P. Jawahar
The growth and composition of periphyton in low saline groundwater (5 ppt) were evaluated using 5 different substrates: split bamboo poles (SBP), green shade net (GSN), high density polyethylene (HDPE) sheets, low density polyethylene (LDPE) sheets, and polyvinyl chloride (PVC) pipes). The effect of substrate type, submersion time, and depth was evaluated. The average submersion depth of all the substrates was maintained at 88.27 cm, and this trial was conducted for 60 days. Chlorophyll a, dry weight, ash, ash free dry weight, and periphyton diversity were analyzed. The growth of periphyton in terms of chlorophyll a value on different substrates has revealed a higher mean value for bamboo substrate (6.82±2.79 μg/cm2), followed by green shade net, HDPE, LDPE, and PVC with values of 5.24±2.27 μg/cm2, 4.64±2.06 μg/cm2, 4.51±2.08 μg/cm2, and 3.10±1.57 μg/cm2, respectively. The mean values of dry weight recorded were 1.81±0.78 mg/cm2, 1.65±0.70 mg/cm2, 1.29±0.56 mg/cm2, 1.32±0.57 mg/cm2, and 0.78±0.45 mg/cm2 for SBP, GSN, LDPE, HDPE, and PVC substrates, respectively. In all substrates, there was a significant difference observed in the development of periphyton over time (p < 0.05). There was no significance (p > 0.05) observed in Chlorophyll a value with depth in all 5 different substrates.
采用竹竿(SBP)、绿荫网(GSN)、高密度聚乙烯(HDPE)片、低密度聚乙烯(LDPE)片和聚氯乙烯(PVC)管5种不同基质,对低盐地下水(5 ppt)中周围植物的生长和组成进行了研究。评估了基质类型、浸泡时间和深度的影响。所有基质的平均淹没深度保持在88.27 cm,试验持续60 d。分析了叶绿素a、干重、灰分、无灰分干重和周围植物多样性。不同基质上浮游植物叶绿素a的平均值以竹为最高(6.82±2.79 μg/cm2),其次为绿荫网、HDPE、LDPE和PVC,分别为5.24±2.27 μg/cm2、4.64±2.06 μg/cm2、4.51±2.08 μg/cm2和3.10±1.57 μg/cm2。SBP、GSN、LDPE、HDPE和PVC基材的干重平均值分别为1.81±0.78 mg/cm2、1.65±0.70 mg/cm2、1.29±0.56 mg/cm2、1.32±0.57 mg/cm2和0.78±0.45 mg/cm2。在所有底物中,随时间的推移,周长的发育有显著差异(p < 0.05)。5种不同基质叶绿素a值随深度的变化均无显著性差异(p < 0.05)。
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引用次数: 1
MicroRNA-21a-5p regulates TGF-?1-induced myofibroblast transformation of rabbit keratocytes by targeting Smad7 微小RNA-21a-5p调节TGF-?靶向Smad7诱导1诱导的兔角膜细胞肌成纤维细胞转化
IF 1.2 4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2022-01-01 DOI: 10.2306/scienceasia1513-1874.2022.011
Jianhai Bai, Minli Zhang, Xiaomin Ding, Xingzhi Yang, Daniel Zheng, Hongyun Mou, Xiaoxiao Ruan, Yueqing Feng, Hai-xiong Han, Shi-li Wang
The transforming growth factor β1 (TGF-β1)-induced transformation of keratocytes to myofibroblasts is a very common process during corneal wound healing, but a dysregulated TGF-β1 activity may induce unfavorable fibrosis and scar formation in the cornea. MicroRNA (miR)-21a-5p and Smad7 have been reported to play an important role in the fibrosis process. However, how miR-21a-5p involves in the TGF-β1-induced myofibroblasts transformation of keratocytes remains unclear. In the present study, we found an increase in the expressions of α-SMA and collagen I at protein level as well as Smad7 and miR-21a-5p at mRNA level when keratocytes were treated with TGF-β1Here; but the Smad7 at protein level kept unchanged. The overexpression of miR-21a-5p attenuated Smad7 protein expression, and miR-21a-5p inhibition promoted Smad7 protein expression without affecting its mRNA expression. Furthermore, inhibition of miR-21a-5p could decrease TGF-β1-inducedα-SMA expression, whereas the addition of Smad7 knockdown would rescue the expression of α-SMA. These results suggested that miR-21a-5p had a promoting effect on TGF-β1induced myofibroblast transformation of keratocytes by targeting Smad7 at its translation stage.
转化生长因子β1 (TGF-β1)诱导角质细胞向肌成纤维细胞的转化是角膜创面愈合过程中非常常见的过程,但TGF-β1活性失调可能导致角膜不利的纤维化和瘢痕形成。据报道,MicroRNA (miR)-21a-5p和Smad7在纤维化过程中发挥重要作用。然而,miR-21a-5p如何参与TGF-β1诱导的角质细胞的肌成纤维细胞转化尚不清楚。在本研究中,我们发现TGF-β1处理角化细胞后,蛋白水平α-SMA和胶原I的表达增加,mRNA水平Smad7和miR-21a-5p的表达增加;而蛋白水平的Smad7则保持不变。过表达miR-21a-5p可减弱Smad7蛋白的表达,抑制miR-21a-5p可促进Smad7蛋白的表达,但不影响其mRNA的表达。此外,抑制miR-21a-5p可降低TGF-β1诱导的α-SMA表达,而添加Smad7敲低可挽救α-SMA的表达。这些结果表明,miR-21a-5p通过靶向翻译阶段的Smad7,对TGF-β1诱导的角化细胞的肌成纤维细胞转化具有促进作用。
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引用次数: 1
Treatment with the combined antimicrobials triggers proteomic changes in P. aeruginosa-C. albicans polyspecies biofilms 联合抗菌素治疗会引发铜绿假单胞菌c的蛋白质组学变化。白色念珠菌多物种生物膜
IF 1.2 4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2022-01-01 DOI: 10.2306/scienceasia1513-1874.2022.020
Siti Fadilah Mohd Isa, Umi Marshida Abdul Hamid, Mohd Fakharul Zaman Raja Yahya
Pseudomonas aeruginosa is known to coexist and interact with Candida albicans in the polyspecies biofilms. In our previous work, treatment with the combined antimicrobials has been shown to significantly inhibit this polyspecies biofilm; however, the proteomic changes associated with this biofilm inhibition remain not well understood. Thus, the present work was performed to determine the proteome profile of P. aeruginosa-C. albicans polyspecies biofilms following treatment with the combined antimicrobials. The P. aeruginosa-C. albicans polyspecies biofilms were developed in 6-well microplates at 37 °C for 24 h under aerobic and anaerobic conditions. Following the treatment with 40 mg/ml combined antimicrobials (20 mg/ml erythromycin:20 mg/ml nystatin), whole-cell proteomes from the polyspecies biofilms were analyzed by a combination of two-dimensional polyacrylamide gel electrophoresis (2D SDSPAGE) and mass spectrometry. On the other hand, the differentially expressed proteins were analyzed using STRING database. Results demonstrated that 3 and 9 P. aeruginosa proteins were differentially expressed in treated polyspecies biofilms under aerobic and anaerobic conditions, respectively. Based on the protein interaction network, several biological pathways such as carbohydrate metabolism, protein metabolism, and secondary metabolite metabolism in P. aeruginosa might be affected by the treatment with combined antimicrobials. There were no differentially expressed C. albicans proteins identified herein. It is possible that the inhibition of the polyspecies biofilms by the combined antimicrobial is associated with multiple biological pathways. The combined antimicrobials used in the present study may be useful to manage the diseases caused by P. aeruginosa-C. albicans polyspecies biofilms.
铜绿假单胞菌已知在多物种生物膜中与白色念珠菌共存并相互作用。在我们之前的工作中,联合抗菌药物治疗已被证明可以显著抑制这种多物种生物膜;然而,与这种生物膜抑制相关的蛋白质组学变化仍未得到很好的理解。因此,本研究旨在确定铜绿假单胞菌c的蛋白质组谱。联合抗菌剂治疗后白色念珠菌多物种生物膜。铜绿假单胞菌。白念珠菌多菌种生物膜在6孔微孔板上培养,在37℃好氧和厌氧条件下培养24 h。用40 mg/ml联合抗菌剂(红霉素20 mg/ml:制霉菌素20 mg/ml)处理后,采用二维聚丙烯酰胺凝胶电泳(2D SDSPAGE)和质谱联用分析多物种生物膜的全细胞蛋白质组。另一方面,使用STRING数据库对差异表达蛋白进行分析。结果表明,在好氧和厌氧条件下,P. aeruginosa蛋白在处理后的多物种生物膜中分别有3和9种差异表达。基于蛋白质相互作用网络,联合抗菌药物可能会影响铜绿假单胞菌的碳水化合物代谢、蛋白质代谢和次级代谢物代谢等多种生物学途径。本研究未发现白色念珠菌蛋白的差异表达。联合抗菌药物对多物种生物膜的抑制作用可能与多种生物途径有关。本研究使用的联合抗菌药物可能有助于控制铜绿假单胞菌c引起的疾病。白色念珠菌多物种生物膜。
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引用次数: 3
Normal approximation for call function of locally dependent random variables 局部相关随机变量调用函数的正态逼近
IF 1.2 4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2022-01-01 DOI: 10.2306/scienceasia1513-1874.2022.033
Suporn Jongpreechaharn, K. Neammanee
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引用次数: 1
Analysis of novel prognostic markers of oral squamous cell carcinoma at the transcriptome-wide level 在转录组水平上分析口腔鳞状细胞癌新的预后标志物
IF 1.2 4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2022-01-01 DOI: 10.2306/scienceasia1513-1874.2022.047
Li Kunshan, Liu Yuanhang, Sun Jieming, Qiu Junping, Wang Wenjing, Qiu Yongle
Patients with oral squamous cell carcinoma (OSCC) have a poor prognosis. The molecular mechanism of OSCC progression remains unclear. The aim of this study was to explore specific prognostic biomarkers of OSCC at the transcriptome-wide level. A total of 158 differentially expressed long non-coding RNAs (lncRNAs), including 85 cis-acting and 10 trans-acting differentially expressed lncRNAs, were screened in OSCC tissues compared with adjacent normal tissues. Both cisand trans-target genes of differentially expressed lncRNAs were enriched in pathways associated with cancer progression. Additionally, 25 differentially expressed mRNAs were screened. Overlapping analysis of differential protein-coding genes with the cisand trans-target genes of differentially expressed lncRNAs indicated that KIF19 was the only trans-acting gene of differentially expressed lncRNA ‘ENST00000626052’ (named ENSTa). ENSTa was down-regulated in OSCC tissues and cells, and its low expression corresponded to a poor prognosis in OSCC. KIF19 was highly expressed in OSCC tissues and cells. Patients with high expression of KIF19 had a poor prognosis. Cellular experiments showed that KIF19 expression and cell proliferation were inhibited in cells overexpressing ENSTa. However, KIF19 overexpression counteracted the effect of ENSTa overexpression on cell proliferation. In conclusion, ENSTa regulated the trans-acting KIF19 gene in the inhibition of the progression of OSCC, thus they could be suggested as novel biomarkers for OSCC.
口腔鳞状细胞癌(OSCC)患者预后较差。OSCC进展的分子机制尚不清楚。本研究的目的是在转录组水平上探索OSCC的特异性预后生物标志物。与邻近正常组织相比,在OSCC组织中共筛选出158个差异表达的长链非编码rna (lncRNAs),其中85个为顺式作用,10个为反式作用差异表达lncRNAs。差异表达lncrna的顺式和反式靶基因在与癌症进展相关的途径中都富集。此外,还筛选了25个差异表达mrna。差异蛋白编码基因与差异表达lncRNA的顺式和反式靶基因的重叠分析表明,KIF19是差异表达lncRNA ' ENST00000626052 '(命名为ENSTa)唯一的反式基因。ENSTa在OSCC组织和细胞中表达下调,其低表达与OSCC预后不良相关。KIF19在OSCC组织和细胞中高表达。KIF19高表达患者预后较差。细胞实验表明,过表达ENSTa的细胞可抑制KIF19的表达和细胞增殖。然而,KIF19过表达抵消了ENSTa过表达对细胞增殖的影响。综上所述,ENSTa调节反式作用的KIF19基因抑制OSCC的进展,因此可以建议它们作为OSCC的新型生物标志物。
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引用次数: 0
Adsorption of Ni2+ on malic acid modified activated carbon from Phragmites australis 苹果酸改性芦苇活性炭对Ni2+的吸附研究
IF 1.2 4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2022-01-01 DOI: 10.2306/scienceasia1513-1874.2022.077
Dongmei He, Jian Zhang, Z. Shang, Chenglu Zhang
: To tackle the issue of environmental pollution caused by heavy metal ions, a novel malic acid modified activated carbon (denoted as MA-AC) from (the plant) Phragmites australis has been successfully prepared with high Ni 2 + adsorption capacity (38.36 mg / g). The physical and chemical characteristics of MA-AC were evaluated by N 2 adsorption / desorption, Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR), and X-ray Photoelectron Spectroscopy (XPS). The results indicated that the MA-AC has more microporous structures and more oxygen bearing functional groups than the unmodified AC (denoted as AC). The Ni 2 + adsorption behaviors of the adsorbents were investigated by batch experiments, which indicated that the MA-AC showed 38% higher Ni 2 + adsorption capacity than the unmodified AC. The adsorption isotherms and the kinetics of the absorbents agreed well with the Langmuir model and the pseudo-second-order model. The Ni 2 + adsorption mechanisms of MA-AC were investigated by FTIR and XPS analyses. The results from the analyses indicated that the enhanced surface adsorption of Ni 2 + on MA-AC are attributed to the chemistry between the Ni 2 + and the oxygen-containing functional groups on the surface.
为解决重金属离子对环境的污染问题,以芦苇为原料制备了一种新型苹果酸改性活性炭(MA-AC),该活性炭具有较高的Ni 2 +吸附量(38.36 mg / g),并通过n2吸附/解吸、扫描电镜(SEM)、傅立叶变换红外(FTIR)和x射线光电子能谱(XPS)对其物理化学特性进行了评价。结果表明,与未改性的AC相比,MA-AC具有更多的微孔结构和更多的含氧官能团。通过批量实验研究了吸附剂对Ni 2 +的吸附行为,结果表明,MA-AC对Ni 2 +的吸附量比未改性AC高38%,吸附等温线和吸附动力学符合Langmuir模型和拟二阶模型。通过FTIR和XPS分析探讨了MA-AC对Ni 2 +的吸附机理。分析结果表明,MA-AC表面对Ni 2 +的吸附增强是由于Ni 2 +与表面含氧官能团之间的化学反应。
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引用次数: 0
ScienceAsia: Moving towards 50th anniversary 《亚洲科学》:迈向50周年
IF 1.2 4区 综合性期刊 Q2 Multidisciplinary Pub Date : 2022-01-01 DOI: 10.2306/scienceasia1513-1874.2022.116
P. Pongsawasdi
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引用次数: 0
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