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- 저자 : ( Tang Kai Wang ) (검색결과 26 건)
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Kai Xu,Zhenchang Tang,Yan Zhang,Wanshu Li,Haiou Li,Lihui Wang,Li-Ming Liu,Hong-Hang Wang,Feng Chi,Xiaowen Zhang 한국물리학회 2019 Current Applied Physics Vol.19 No.10
Germanium dioxide (GeO2) aqueous solutions are facilely prepared and the corresponding anode buffer layers (ABLs) with solution process are demonstrated. Atomic force microscopy, X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy measurements show that solution-processed GeO2 behaves superior film morphology and enhanced work function. Using GeO2 as ABL of organic light-emitting diodes (OLEDs), the visible device with tris(8-hydroxy-quinolinato)aluminium as emitter gives maximum luminous efficiency of 6.5 cd/A and power efficiency of 3.5 lm/W, the ultraviolet device with 3-(4-biphenyl)-4-phenyl-5-tert-butylphenyl- 1,2,4-triazole as emitter exhibits short-wavelength emission with peak of 376 nm, full-width at halfmaximum of 42 nm, maximum radiance of 3.36 mW/cm2 and external quantum efficiency of 1.5%. The performances are almost comparable to the counterparts with poly (3,4-ethylenedioxythiophene):poly (styrenesulfonate) as ABL. The current, impedance, phase and capacitance as a function of voltage characteristics elucidate that the GeO2 ABL formed from appropriate concentration of GeO2 aqueous solution favors hole injection enhancement and accordingly promoting device performance.
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Tang Zhe,Song Jingyu,Yu Zhe,Cui Kai,Ruan Yajun,Liu Yang,Wang Tao,Wang Shaogang,Liu Jihong,Yang Jun 대한남성과학회 2023 The World Journal of Men's Health Vol.41 No.1
Purpose: To determine whether microRNA could be a therapy target of erectile dysfunction (ED) and the underlying mecha-nisms. Materials and Methods: Eight-week-old fasting male SD rats were intraperitoneally injected with streptozotocin to construct diabetic rat models. Diabetic ED rats were treated with miRNA-92a inhibitor. The cavernous nerves were electrically stimu-lated to measure the intracavernous pressure and mean arterial pressure of rats in each group. After the detection, the penile cavernous tissues are properly stored for subsequent experiments. Rat aortic endothelial cells were used in in vitro studies. Results: The expression of miR-92a was significantly increased in the corpus cavernosum of Streptozocin (STZ)-induced di- abetic rats and injection of miR-92a antagomir into the corpus cavernosum of diabetic rats significantly increased eNOS/NO/ cGMP signaling pathway activities, cavernous endothelial cell proliferation, endothelial cell-cell junction protein expression and decreased the levels of oxidative stress. These changes restored erectile function in STZ-induced diabetic rats. Moreover, in vitro study demonstrated that the miR-92a expression increased significantly in endothelial cells treated with high glucose, inhibiting AMPK/eNOS and AMPK/Nrf2/HO-1 signaling pathways in rat aortic endothelial cells via targeting Prkaa2, causing endothelial dysfunction and overactive oxidative stress, miR-92a inhibitor can improve the above parameters. Conclusions: miRNA-92a inhibitor could exert an inhibition role on oxidative stress and endothelial dysfunction to improve diabetic ED effectively.
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Overexpression of TRPM7 is Associated with Poor Prognosis in Human Ovarian Carcinoma
Wang, Jing,Xiao, Ling,Luo, Chen-Hui,Zhou, Hui,Hu, Jun,Tang, Yu-Xi,Fang, Kai-Ning,Zhang, Yi Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.9
Background: The melastatin-related transient receptor potential 7 channel (TRPM7) is a nonselective cation channel that has been shown to promote tumor metastasis and progression. In this study, we determined the expression of TRPM7 in ovarian carcinomas and investigated its possible prognostic value. Materials and Methods: Samples were collected from 138 patients with ovarian cancer. Expression of TRPM7 was assessed by real-time PCR and immunohistochemistry, expressed with reference to an established scoring system and related to clinical pathological factors. Kaplan-Meier survival analysis was applied to estimate disease-free survival (DFS) and overall survival (OS). Univariate and multivariate cox regression analyses were performed to correlate TRPM7 expression levels with DFS and OS. Results: TRPM7 was highly expressed in ovarian carcinoma and significantly associated with decreased disease-free survival (DFS: median 20 months vs. 42 months, P=0.0002) and overall survival (OS: median 27 months vs. 46 months, P<0.001). Conclusion: Overexpression of TRPM7 expression is significantly associated with poor prognosis in patients with ovarian cancer.
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Tang, Shu-Kun,Wang, Yun,Zhang, Hua,Lee, Jae-Chan,Lou, Kai,Kim, Chang-Jin,Li, Wen-Jun Microbiology Society 2010 International journal of systematic and evolutiona Vol.60 No.9
<P>A novel halophilic, filamentous actinomycete strain, designated YIM 93221<SUP>T</SUP>, was isolated from a salt lake in Xinjiang province, north-west China, and subjected to a polyphasic taxonomic characterization. The isolate grew with 9-23 % (w/v) NaCl and did not grow without NaCl. The isolate formed spiny aerial mycelium and did not form spores at maturity. The isolate contained <I>meso</I>-diaminopimelic acid as the diagnostic diamino acid and glucose, glucosamine, mannose and an unknown sugar as the major whole-cell sugars. The phospholipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, phosphatidylinositol, phosphatidylinositol mannosides and an unknown phospholipid. MK-8(H4) was the predominant menaquinone. The major fatty acid was iso-C16 : 0. The DNA G+C content was 68.1 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain YIM 93221<SUP>T</SUP> formed a distinct lineage within the suborder <I>Pseudonocardineae</I> and showed 91.9-94.8 % 16S rRNA gene sequence similarity with members of the suborder <I>Pseudonocardineae</I>. On the basis of the evidence from this polyphasic study, a novel genus and species, <I>Haloechinothrix alba</I> gen. nov., sp. nov., are proposed. The type strain of <I>Haloechinothrix alba</I> is YIM 93221<SUP>T</SUP> (=DSM 45207<SUP>T</SUP> =CCTCC AB 208140<SUP>T</SUP>).</P>
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Tang, Shu-Kun,Zhi, Xiao-Yang,Wang, Yun,Wu, Jin-Yuan,Lee, Jae-Chan,Kim, Chang-Jin,Lou, Kai,Xu, Li-Hua,Li, Wen-Jun Microbiology Society 2010 International journal of systematic and evolutiona Vol.60 No.9
<P>A Gram-staining-positive, facultatively anaerobic, non-motile and moderately halophilic actinobacterium, designated YIM 93306<SUP>T</SUP>, was isolated from a salt lake in Xinjiang province, north-west China, and subjected to a polyphasic taxonomic study. Strain YIM 93306<SUP>T</SUP> grew in the presence of 2-16 % (w/v) NaCl and did not grow without NaCl. The peptidoglycan type was A4<I>α</I> with an l-Lys-l-Glu interpeptide bridge. The whole-cell sugars were glucosamine, arabinose, mannose and two unknown sugars. The predominant menaquinone was MK-8(H4). The major fatty acids were iso-C15 : 0, anteiso-C15 : 0 and anteiso-C17 : 0. The polar lipids comprised diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol, one unknown phosphoglycolipid and one unknown phospholipid. The DNA G+C content was 68.3 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain YIM 93306<SUP>T</SUP> fell within the radius of the suborder <I>Micrococcineae</I>. Its closest phylogenetic neighbour was the type strain of <I>Ruania albidiflava</I> (AS 4.3142<SUP>T</SUP>; 96.2 % 16S rRNA gene sequence similarity), the sole recognized species of the genus <I>Ruania</I>. Sequence similarities between strain YIM 93306<SUP>T</SUP> and members of other genera of the suborder <I>Micrococcineae</I> were <95.2 %. On the basis of phylogenetic analysis, phenotypic characteristics and chemotaxonomic differences, a novel genus and species, <I>Haloactinobacterium album</I> gen. nov., sp. nov., is proposed. The type strain of the species is YIM 93306<SUP>T</SUP> (=DSM 21368<SUP>T</SUP> =KCTC 19413<SUP>T</SUP> =CCTCC AB 208069<SUP>T</SUP>). Based on phylogenetic characteristics and 16S rRNA gene signature nucleotide patterns, the genera <I>Ruania</I> and <I>Haloactinobacterium</I> gen. nov. are proposed to belong to a novel family, <I>Ruaniaceae</I> fam. nov.</P>
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Kocuria halotolerans sp. nov., an actinobacterium isolated from a saline soil in China.
Tang, Shu-Kun,Wang, Yun,Lou, Kai,Mao, Pei-Hong,Xu, Li-Hua,Jiang, Cheng-Lin,Kim, Chang-Jin,Li, Wen-Jun Society for General Microbiology 2009 International journal of systematic and evolutiona Vol.59 No.6
<P>A Gram-positive actinobacterium, designated strain YIM 90716(T), was isolated from a saline soil sample collected from Ganjiahu Suosuo Forest National Nature Reserve in Xinjiang Province, north-west China. The new isolate contained lysine, glutamic acid and alanine with peptidoglycan type Lys-Ala(3) (variation A3alpha). The major phospholipids were phosphatidylglycerol and diphosphatidylglycerol. The predominant menaqinone was MK-7(H(2)). The major fatty acids were anteiso-C(15 : 0), iso-C(16 : 0) and anteiso-C(17 : 0). The DNA G+C content of strain YIM 90716(T) was 68.0 mol%. Chemotaxonomic properties supported the affiliation of strain YIM 90716(T) to the genus Kocuria. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the organism was related most closely to Kocuria kristinae DSM 20032(T) (96.8 % similarity) and showed lower levels of 16S rRNA gene similarity (<96.5 %) with the type strains of other species of the genus Kocuria. The results of fatty acid analysis and physiological and biochemical tests allowed the genotypic and phenotypic differentiation of strain YIM 90716(T) from its closest relatives. On the basis of data from the present polyphasic study, strain YIM 90716(T) is considered to represent a novel species of the genus Kocuria, for which the name Kocuria halotolerans sp. nov. is proposed. The type strain is YIM 90716(T) (=DSM 18442(T)=KCTC 19172(T)=CCTCC AB 206069(T)).</P>
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( Kai Yang ),( Yulong Tang ),( Yanyun Ma ),( Qingmei Liu ),( Yan Huang ),( Yuting Zhang ),( Xiangguang Shi ),( Li Zhang ),( Yue Zhang ),( Ji’an Wang ),( Yifei Zhu ),( Wei Liu ),( Yimei Tan ),( Jinran 대한피부과학회 2021 Annals of Dermatology Vol.33 No.6
Background: Androgenetic alopecia (AGA) leads to thinning of scalp hair and affects 60%~70% of the adult population worldwide. Developing more effective treatments and studying its mechanism are of great significance. Previous clinical studies have revealed that hair growth is stimulated by 650-nm red light. Objective: This study aimed to explore the effect and mechanism of 650-nm red light on the treatment of AGA by using ex vivo hair follicle culture. Methods: Human hair follicles were obtained from hair transplant patients with AGA. Hair follicles were cultured in Williams E medium and treated with or without 650-nm red light. Real-time RT-PCR and immunofluorescence staining were used to detect the expression level of genes and proteins in hair follicles, respectively. RNA-sequencing analysis was carried out to reveal the distinct gene signatures upon 650 nm treatment. Results: Low-level 650 nm red light promoted the proliferation of human hair follicles in the experimental cultured-tissue model. Consistently, 650 nm red light significantly delayed the transition of hair cycle from anagen to catagen in vitro. RNA-seq analysis and gene clustering for the differentially expressed genes suggests that leukocyte transendothelial migration, metabolism, adherens junction and other biological process maybe involved in stimulation of hair follicles by 650-nm red light treatment. Conclusion: The effect of 650-nm red light on ex vivo hair follicles and the transcriptome set which implicates the role of red light in promoting hair growth and reversing of miniaturization process of AGA were identified.
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Wang, Bo,Su, Yun,Yang, Qun,Lv, Decheng,Zhang, Weiguo,Tang, Kai,Wang, Hong,Zhang, Rui,Liu, Yang Korean Society for Molecular and Cellular Biology 2015 Molecules and cells Vol.38 No.5
Human osteosarcoma usually presented a high tendency to metastatic spread and caused poor outcomes, however, the underlying mechanism was still largely unknown. In the present study, using a series of in vitro experiments and an animal model, we investigated the roles of HOX antisense intergenic RNA (HOTAIR) during the proliferation and invasion of osteosarcoma. According with our results, HOTAIR was commonly overexpressed in osteosarcoma, which significantly correlated with advanced tumor stage, highly histological grade and poor prognosis. In vitro and in vivo experiments demonstrated that knockdown of HOTAIR could notably suppress cellular proliferation, inhibit invasion and decrease the secretion of MMP2 and MMP9 in osteosarcoma. Collectively, our results suggested that HOTAIR might be a potent therapeutic target for osteosarcoma.
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Wang Ming‐Ming,Yin Peng‐Kai,Tang Ya‐Ni,Yang Zi‐Zhong,Xiao Huai,Zhang Cheng‐Gui,Yang Yin‐He,Yang Da‐Song 한국곤충학회 2022 Entomological Research Vol.52 No.3
As traditional Chinese medicine and edible insects, Ve s p a hornets have high economic value and huge market demand. Hornet breeding has become an important way to increase the income of mountain farmers in China, but the limitation of traditional identification methods has become the bottleneck of the modern development of hornet resources. In this study, a simple and reliable method for the molecular identification of typical hornets from Yunnan was successfully established. In the NCBI database, DNA sequences of hornet samples were aligned as Vespa analis, Ve s p a b a s a l i s , Vespa velutina, Vespa mandarinia, Ve s p a m a g n i f i c a , Ve s p a b i n g h a m i , Ve s p a s o r o r by BLAST search. The efficiency of the PCR amplification of mitochondrial cytochrome C oxidase I (COI) gene sequences in all samples was 100% by using the optimized program. Moreover, a reference database for DNA barcodes of Vespa materials in Yunnan was constructed. This study provided a successful example for the identification of local insects of Yunnan and will be helpful to the development of wasp resources.
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Bo Wang,Yun Su,Qun Yang,Decheng Lv,Wei-Guo Zhang,Kai Tang,Hong Wang,Rui Zhang,Yang Liu 한국분자세포생물학회 2015 Molecules and cells Vol.38 No.5
Human osteosarcoma usually presented a high tendency to metastatic spread and caused poor outcomes, however, the underlying mechanism was still largely unknown. In the present study, using a series of in vitro experiments and an animal model, we investigated the roles of HOX antisense intergenic RNA (HOTAIR) during the proliferation and invasion of osteosarcoma. According with our results, HOTAIR was commonly overexpressed in osteosarcoma, which significantly correlated with advanced tumor stage, highly histological grade and poor prognosis. In vitro and in vivo experiments demonstrated that knockdown of HOTAIR could notably suppress cellular proliferation, inhibit invasion and decrease the secretion of MMP2 and MMP9 in osteosarcoma. Collectively, our results suggested that HOTAIR might be a potent therapeutic target for osteosarcoma.
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