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Yazmín Hernández‑Díaz,Thelma Beatriz González‑Castro,Isela Esther Juárez‑Rojop,Carlos Alfonso Tovilla‑Zárate,María Lilia López‑Narváez,Alma Delia Genis‑Mendoza,Ana Fresan,Humberto Nicolini 한국유전학회 2021 Genes & Genomics Vol.43 No.11
Background Several studies have evaluated the possible association between polymorphisms or variants in Corticotropinreleasing hormone 1 receptor gene (CRHR1) with depression; however, results remain contradictory and heterogeneous. Objective To our knowledge, we conducted the frst comprehensive systematic review and meta-analysis evaluating the association of the CRHR1 gene and the risk of depression. Methods A search online was conducted in databases for any CRHR1 genetic association studies in depression. Data were extracted for evaluation of pooled estimates using meta-analytic techniques. Statistical analyses were performed using the Comprehensive Meta-analysis, v2.0 software. Result A total of 1403 cases and 2353 mentally healthy controls were included in this study. We found a signifcant association of rs242941, rs1876828 and rs242939 variants of the CRHR1 gene with depression. No association of CRHR1 rs110402 and depression was observed. Conclusion Our meta-analysis shows that some variants of the CRHR1 gene (rs242941, rs1876828 and rs242939) might confer susceptibility to depression. Further studies with larger sample sizes need to be conducted.
Morphology control and optical properties of ZnO nanostructures grown by ultrasonic synthesis
Morales-Flores, N.,Galeazzi, R.,Rosendo, E.,Diaz1d, T.,Velumani, S.,Pal, U. Techno-Press 2013 Advances in nano research Vol.1 No.1
ZnO nanostructures of rod-like, faceted bar, cup-end bars, and spindle shaped morphologies could be grown by a low power ultrasonic synthesis process. pH of the reaction mixture seems to plays an important role for defining the final morphology of ZnO nanostructures. While the solution pH as low as 7 produces long, uniform rod-like nanostructures of mixed phase (ZnO and $Zn(OH)_2$), higher pH of the reaction mixture produces ZnO nanostructures of different morphologies in pure hexagonal wurtzite phase. pH of the reaction as high as 10 produces bar shaped uniform nanostructures with lower specific surface area and lower surface and lattice defects, reducing the defect emissions of ZnO in the visible region of their photoluminescence spectra.
Ksenija Durgo,Ana Belscak-Cvitanovic,Angela Stancic,Jasna Franekic,Drazˇenka Komes 한국식품영양과학회 2012 Journal of medicinal food Vol.15 No.3
In this article, the bioactive potential of red raspberry leaves, a by-product of this widely spread plant, mostly valued for its antioxidant-rich fruits, was determined. The polyphenolic profile and antioxidative properties of red raspberry leaf extract were determined and examined for potential biological activity. Cytotoxic effect, antioxidative/prooxidative effect, and effect on total glutathione concentration were determined in human laryngeal carcinoma (HEp2) and colon adenocarcinoma (SW 480) cell lines. SW 480 cells are more susceptible to raspberry leaf extract in comparison with HEp2 cells. The antioxidative nature of raspberry leaf extract was detected in HEp2 cells treated with hydrogen peroxide, as opposed to SW 480 cells, where raspberry leaf extract induced reactive oxygen species formation. Raspberry leaf extract increased total glutathione level in HEp2 cells. This effect was reinforced after 24 hours of recovery, indicating that induction was caused by products formed during cellular metabolism of compounds present in the extract. Comparison of the results obtained on these two cell lines indicates that cellular response to raspberry extract will depend on the type of the cells that are exposed to it. The results obtained confirmed the biological activity of red raspberry leaf polyphenols and showed that this traditional plant can supplement the daily intake of valuable natural antioxidants, which exhibit beneficial health effects.
More Integrated than Ever? Long-Term Market and Policy Drivers of Intra-Asian Trade
Alejandro Ayuso-Díaz(Alejandro Ayuso-Díaz ),Antonio G. Gómez-Plana(Antonio G. Gómez-Plana ) 세종대학교 경제통합연구소 2023 Journal of Economic Integration Vol.38 No.1
Since the Doha Round stalemate after 2001, trade liberalization has progressed through regional trade agreements (RTAs) and East and Southeast Asia is not unfamiliar with this. Before assessing the effectiveness of recent trade agreements, the long tradition of trade exchange in this region that has lasted for more than 2,000 years necessitates an understanding of the evolution of intra-Asian trade across history. In this regard, this study contributes to the literature examining whether present intra-Asian trade is more or less intense than before 1938. This research outperforms previous studies using a gravity model that controls for changes in GDP and trade costs in the region across four different time periods (between 1840 and 2018). The results show that contemporary regional trade in East and Southeast Asia is slightly less intense than before World War II. A second question addressed is the relevance of trade agreements after the 1985 Plaza Accord on trade integration, compared with market determinants. A second gravity model for regional imports after 1986 is regressed on both policy and market indicators, indicating that the latest wave of intra-Asian trade is characterized by trade complementarities that are fueled by regional foreign direct investment, and free trade agreements are less effective. This result is validated through a network analysis demonstrating the symbiosis between trade and investment flows in the region, which should be considered in RTAs that are in place or in negotiation to take intra-Asian trade beyond its historical limits.
Puente-Martínez D. E.,Díaz-Guillén J. A.,González-García K. A.,Montemayor S. M.,Díaz-Guillén J. C.,Burciaga-Díaz O.,Bazaldúa-Medellín M. E.,Padmasree K. P. 한국세라믹학회 2023 한국세라믹학회지 Vol.60 No.5
This research reports the synthesis, characterization, and electrical properties of the systems EryCe1−yO2−δ (y = 0.05, 0.1, and 0.15), and the effect of the incorporation of sintering aids (2 wt.% of CaO, MgO, and TiO2) on the electrical properties of the composition Er0.1Ce0.9O1.95, to be used as ceramic solid electrolytes in low-temperature solid oxide fuel cells (LT-SOFC). All EryCe1−yO2−δ samples were obtained by mechanochemistry (20 h of milling) and characterized by XRD. The morphology of the pure sintered compositions and with the incorporation of sintering aids (sintered at 1200 °C) was evaluated by FE-SEM. Electrical properties as a function of temperature (200–650 °C) and frequency (100 Hz–1 MHz) were evaluated by impedance spectroscopy. It reveals an increase of bulk ionic conductivity for higher contents of Er, as the number of oxygen vacancies increases. The higher value of conductivity (6.7 × 10–3 S cm−1) at 650 °C was for the composition Er0.15Ce0.85O1.925, while the ionic conductivity of Er0.1Ce0.9O1.95 at 650 °C increased from 2.68 × 10–3 S cm−1 to a maximum of 1.54 × 10–2 S cm−1 with the incorporation of CaO as additive. These improvements in bulk ionic conductivities can contribute to the development of more efficient electrolytes for the LT-SOFC technology.
Restoration and conservation of anatomic pieces
Camila Cárdenas Guerrero Guzmán,Karen Alejandra Pérez Díaz,María Paula Ruíz Díaz,Valentina Díaz Sánchez,Andrés Camilo Ariza Aguirre,Laura Catalina Cantor Alfonso,Camila Andrea Suárez Ortiz,Davide Fali 대한해부학회 2019 Anatomy & Cell Biology Vol.52 No.3
In this study, a restoration process was developed with potassium hydroxide (KOH), in order to improve each of the structures for their posterior fixation, through the use of new methods such as the Chilean conservative fixative solution (SFCCh), with exceptional results. Restore anatomical pieces corresponding to corpse and organs, being these last set with the SFCCh. In this work dealt with processes of restoration with potassium hydroxide, sodium chloride, and sodium hypochlorite, the process began with the cleanliness and suture of the structures for subsequent fixing in Chilean conservative fixative solution, making use of a corpse and different anatomical parts. Work based on items found in the database, Elsevier, Science Direct, ProQuest, and MEDLINE. At the end of the process of restoration and conservation of the anatomical pieces, was observed an improvement in muscle pigment with decrease of rigidity in the specimen, additionally a recovery of appearance in the vascular-nervous elements was achieved. The organs were much more malleable and the structures facilitate the identification of specific details, its subsequent immersion in SFCCh allows the longer preservation of the obtained results. The restoration with potassium hydroxide allows the improvement in the appearance of the different anatomical structures and simultaneously to facilitate its study. The SFCCh is an alternative that replaces partially the use of formaldehyde. In addition, it presents toxicity reduction.
Identification and expression analysis of duck interleukin-17D in Riemerella anatipestifer infection
Diaz, J.A.R.,Kim, W.H.,Fernandez, C.P.,Jeong, J.,Afrin, F.,Lillehoj, H.S.,Kim, S.,Kim, S.,Dalloul, R.A.,Min, W. Pergamon Press ; Elsevier Science 2016 DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY Vol.61 No.-
<P>Interleukin (IL)-17D is a proinfiammatory cytokine with currently largely unknown biological functions. Here we provide the description of the sequence, bioactivity, and mRNA expression profile of duck IL-17D homologue. A full-length duck IL-17D (duIL-17D) cDNA with a 624-bp coding region was identified from the large intestine. dull-17D shares approximately 94.7% identity with its chicken counterpart, which is also identified in this work. duIL-17D exhibits 62.6-68.4% and 52.1-53.1% identity with mammalian and piscine homologues. Recombinant duIL-17D promoted the expression of proinfiammatory cytokines such as IL-6, IL-8, and IL-1 beta in duck embryo fibroblast cells. Very low levels of dull-17D transcript were observed in healthy lymphoid tissues, including bursa, thymus, and spleen, while duIL-17D expression was relatively high in the heart. The dull-17D expression profiles were examined in mitogen-stimulated splenic lymphocytes, as well as tissues affected by Riemerella anatipestifer infection. The levels of duIL-17D were mostly upregulated in mitogen-activated splenic lymphocytes but downregulated in the liver and spleen of R. anatipestifer-infected ducks. These results provide new insights into the roles of IL-17D in host protective immune responses to Riemerella infection, which can therefore lead to further studies of its biological functions in different disease models of ducks and other avian species. (C) 2016 Elsevier Ltd. All rights reserved.</P>