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Ansel Shao Pin Tang,Kai En Chan,Jingxuan Quek,Jieling Xiao,Phoebe Tay,Margaret Teng,Keng Siang Lee,Snow Yunni Lin,May Zin Myint,Benjamin Tan,Vijay K Sharma,Darren Jun Hao Tan,Wen Hui Lim,Apichat Kaewd 대한간학회 2022 Clinical and Molecular Hepatology(대한간학회지) Vol.28 No.3
Background/Aims: Non-alcoholic fatty liver disease (NAFLD) is associated with the development of cardiovascular disease. While existing studies have examined cardiac remodeling in NAFLD, there has been less emphasis on the development of carotid atherosclerosis and stroke. We sought to conduct a meta-analysis to quantify the prevalence, risk factors, and degree of risk increment of carotid atherosclerosis and stroke in NAFLD. Methods: Embase and Medline were searched for articles relating to NAFLD, carotid atherosclerosis, and stroke. Proportional data was analysed using a generalized linear mixed model. Pairwise meta-analysis was conducted to obtain odds ratio or weighted mean difference for comparison between patients with and without NAFLD. Results: From pooled analysis of 30 studies involving 7,951 patients with NAFLD, 35.02% (95% confidence interval [CI], 27.36–43.53%) had carotid atherosclerosis with an odds ratio of 3.20 (95% CI, 2.37–4.32; P<0.0001). Pooled analysis of 25,839 patients with NAFLD found the prevalence of stroke to be 5.04% (95% CI, 2.74–9.09%) with an odds ratio of 1.88 (95% CI, 1.23–2.88; P=0.02) compared to non-NAFLD. The degree of steatosis assessed by ultrasonography in NAFLD was closely associated with risk of carotid atherosclerosis and stroke. Older age significantly increased the risk of developing carotid atherosclerosis, but not stroke in NAFLD. Conclusions: This meta-analysis shows that a stepwise increment of steatosis of NAFLD can significantly increase the risk of carotid atherosclerosis and stroke development in NAFLD. Patients more than a third sufferred from carotid atherosclerosis and routine assessment of carotid atherosclerosis is quintessential in NAFLD.
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Expression of Toll-Like Receptors in Verruca and Molluscum Contagiosum
Ja Kyung Ku,Peter I Song,Cheryl A. Armstrong,John C. Ansel,김형옥,Young Min Park,Hyun Jo Kwon,Mi Yeon Kim,Hoon Kang 대한의학회 2008 Journal of Korean medical science Vol.23 No.2
Recent studies indicate that several Toll-like receptors (TLRs) are implicated in recognizing viral structures and instigating immune responses against viral infections. The aim of this study is to examine the expression of TLRs and proinflammatory cytokines in viral skin diseases such as verruca vulgaris (VV) and molluscum contagiosum (MC). Reverse transcription-polymerase chain reaction and immunostaining of skin samples were performed to determine the expression of specific antiviral and proinflammatory cytokines as well as 5 TLRs (TLR2, 3, 4, 7, and 9). In normal human skin, TLR2, 4, and 7 mRNA was constitutively expressed, whereas little TLR3 and 9 mRNA was detected. Compared to normal skin (NS), TLR3 and 9 mRNA was clearly expressed in VV and MC specimens. Likewise, immunohistochemistry indicated that keratinocytes in NS constitutively expressed TLR2, 4, and 7; however, TLR3 was rarely detected and TLR9 was only weakly expressed, whereas 5 TLRs were all strongly expressed on the epidermal keratinocytes of VV and MC lesions. In addition, the mRNA expression of IFN- and TNF- was upregulated in the VV and MC samples. Immunohistochemistry indicated that IFN- and TNF- were predominately localized in the granular layer in the VV lesions and adjacent to the MC bodies. Our results indicated that VV and MC skin lesions expressed TLR3 and 9 in addition to IFN- and TNF- . These viral-induced proinflammatory cytokines may play a pivotal role in cutaneous innate immune responses.
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Fenfang Lin,Matti Jaakkola,Wai-sum Siu,Jake Ansell 글로벌지식마케팅경영학회 2018 Global Marketing Conference Vol.2018 No.07
Prior research found a firm’s strategic orientation has a key impact on product innovativeness performance (Ozkaya et al., 2015). Both marketing orientation and learning orientation help firms to develop new product designs, generate innovative ideas, and achieve a better business performance (Narver & Stanley, 1990; Chuang, Morgan & Robson, 2015; Calantone et al, 2002). In line with prior studies, the purpose of this research is to investigate the mediating role of absorptive capacity (ACAP) (Cohen & Levinthal, 1990) on the effect of a firm’s strategic orientation (i.e., marketing orientation and learning orientation) on product innovativeness. We further investigated how environmental uncertainty moderates the effects of market orientation and learning orientation on product innovativeness. Survey method is adopted to collect data from Chinese manufacturer SMEs in the IT industry. 318 questionnaires were collected and analysed. CFA result shows that all constructs meet minimum requirements for reliability and discriminant validity test. Structural Equation Model (SEM) test reveals that both learning orientation and competitor orientation have significant impacts on product innovativeness, and ACAP plays partial meditation roles to effects from learning orientation to product innovativeness, and competitor orientation to product innovativeness. Customer orientation does not show a direct effect on product innovativeness, but is fully mediated by ACAP. We further tested whether the model is moderated by environmental uncertainty (EU) and result shows that EU only moderates the impact from learning orientation to product innovativeness. By developing a model of strategic orientation– absorptive capacity- product innovativeness, we contribute to the extant literature in strategic marketing.
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Expression of Toll-Like Receptors in Verruca and Molluscum Contagiosum
Ku, Ja Kyung,Kwon, Hyun Jo,Kim, Mi-Yeon,Kang, Hoon,Song, Peter I,Armstrong, Cheryl A.,Ansel, John C.,Kim, Hyung Ok,Park, Young Min The Korean Academy of Medical Sciences 2008 JOURNAL OF KOREAN MEDICAL SCIENCE Vol.23 No.2
<P>Recent studies indicate that several Toll-like receptors (TLRs) are implicated in recognizing viral structures and instigating immune responses against viral infections. The aim of this study is to examine the expression of TLRs and proinflammatory cytokines in viral skin diseases such as verruca vulgaris (VV) and molluscum contagiosum (MC). Reverse transcription-polymerase chain reaction and immunostaining of skin samples were performed to determine the expression of specific antiviral and proinflammatory cytokines as well as 5 TLRs (TLR2, 3, 4, 7, and 9). In normal human skin, TLR2, 4, and 7 mRNA was constitutively expressed, whereas little TLR3 and 9 mRNA was detected. Compared to normal skin (NS), TLR3 and 9 mRNA was clearly expressed in VV and MC specimens. Likewise, immunohistochemistry indicated that keratinocytes in NS constitutively expressed TLR2, 4, and 7; however, TLR3 was rarely detected and TLR9 was only weakly expressed, whereas 5 TLRs were all strongly expressed on the epidermal keratinocytes of VV and MC lesions. In addition, the mRNA expression of IFN-β and TNF-α was upregulated in the VV and MC samples. Immunohistochemistry indicated that IFN-β and TNF-α were predominately localized in the granular layer in the VV lesions and adjacent to the MC bodies. Our results indicated that VV and MC skin lesions expressed TLR3 and 9 in addition to IFN-β and TNF-α. These viral-induced proinflammatory cytokines may play a pivotal role in cutaneous innate immune responses.</P>
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Darren Jun Hao Tan,Sabrina Xin Zi Quek,Jie Ning Yong,Adithya Suresh,Kaiser Xuan Ming Koh,Wen Hui Lim,Jingxuan Quek,Ansel Tang,Caitlyn Tan,Benjamin Nah,Eunice Tan,Taisei Keitoku,Mark D. Muthiah,Nichola 대한간학회 2022 Clinical and Molecular Hepatology(대한간학회지) Vol.28 No.4
Background/Aims: Depression and anxiety are associated with poorer outcomes in patients with hepatocellular carcinoma (HCC). However, the prevalence of depression and anxiety in HCC are unclear. We aimed to establish the prevalence of depression and anxiety in patients with HCC. Methods: MEDLINE and Embase were searched and original articles reporting prevalence of anxiety or depression in patients with HCC were included. A generalized linear mixed model with Clopper-Pearson intervals was used to obtain the pooled prevalence of depression and anxiety in patients with HCC. Risk factors were analyzed via a fractional-logistic regression model. Results: Seventeen articles involving 64,247 patients with HCC were included. The pooled prevalence of depression and anxiety in patients with HCC was 24.04% (95% confidence interval [CI], 13.99–38.11%) and 22.20% (95% CI, 10.07–42.09%) respectively. Subgroup analysis determined that the prevalence of depression was lowest in studies where depression was diagnosed via clinician-administered scales (16.07%;95% CI, 4.42–44.20%) and highest in self-reported scales (30.03%; 95% CI, 17.19–47.01%). Depression in patients with HCC was lowest in the Americas (16.44%; 95% CI, 6.37–36.27%) and highest in South-East Asia (66.67%; 95% CI, 56.68–75.35%). Alcohol consumption, cirrhosis, and college education significantly increased risk of depression in patients with HCC. Conclusions: One in four patients with HCC have depression, while one in five have anxiety. Further studies are required to validate these findings, as seen from the wide CIs in certain subgroup analyses. Screening strategies for depression and anxiety should also be developed for patients with HCC.
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