Results 51 to 60 of about 354,890 (303)

Dynamics of the Mammalian Placental Metabolome in Placentogenesis and Embryonic Development

Advanced Science, EarlyView.
This study identifies three metabolic stages (E8.5, E9.5–10.5, E11.5–14.5) and two transition periods (E8.5–9.5, E10.5–11.5) in mouse placental development. NAD(H) emerges as a key dynamic metabolite that enhances embryonic growth through accelerated segmentation and increased proliferation of mouse embryonic stem cell (mESC)‐induced presomitic ...
Gang Chen, Zichen Liu, Mengyi Wei, Qian Li, Liang Wu, Kunyuan Yu, Yanhong Xu, Dainan Yu, Wenwu Ma, Hongmei Wang, Ng Shyh‐Chang, Jinglei Zhai   +11 more
wiley   +1 more source

Health impacts in South-central Chile due to misuse of wood-burning stoves [PDF]

, 2015
After the episode that occurred in London in December of 1952 in which more than four thousand people died as a result of acute exposure to atmospheric contaminants (particulate matter and sulfur dioxide, principally), there are no doubts that air ...

core   +1 more source

Decoding Human Placental Cellular and Molecular Responses to Obesity and Fetal Growth

Advanced Science, EarlyView.
Women with obesity often deliver large‐for‐gestational‐age (LGA) infants. Single‐nucleus RNA sequencing of term placenta reveals that hypoxia and TNF‐α signaling in syncytiotrophoblasts are featured in maternal obesity, but inflammatory signatures in Hofbauer cells and response to lipid or carbohydrate metabolism in fibroblasts are specific to LGA.
Hong Jiang, Emilie Derisoud, Denise Parreira, Nayere Taebnia, Paulo R. Jannig, Reza Zandi Shafagh, Allan Zhao, Congru Li, Macarena Ortiz, Manuel Alejandro Maliqueo, Elisabet Stener‐Victorin, Volker M. Lauschke, Qiaolin Deng   +12 more
wiley   +1 more source

Towards a revision of the South American genus Praocis Eschscholtz (Coleoptera, Tenebrionidae), with estimation of the diversity of each subgenus [PDF]

, 2014
A review of the subgenera of the South American genus Praocis Eschscholtz (Pimeliinae: Praociini) is presented. Praocis comprises 77 species and 8 subspecies arranged in nine subgenera distributed in arid lands from Central Peru and Bolivia to the ...
Flores, Gustavo Ernesto, Pizarro Araya, Jaime   +1 more
core   +4 more sources

CHB‐Induced Immune Zonation Chaos Elicited LXRα‐mediated Lipid Metabolism Disorders in Kupffer Cells to Induce Cancer Stem Cell Formation

Advanced Science, EarlyView.
By profiling the spatiotemporal hepatic landscape of CHB mouse models, the originally peri‐portal localized KCs migrated to the peri‐central in a CXCL9‐CXCR3‐dependent manner, facilitating their interaction with HBV+ hepatocytes. The interaction promoted LMD in KCs through ASGR1‐induced LXRα degradation, which, in turn, induced CSC formation via Stat3 ...
Jingqi Shi, Qingyu Li, Jian Li, Jian Bai, Ji Xi, Qi He, Jianglin Zhou, Xuejun Wang, Xiang Song, Xiaoju Li, Xiangpei Yue, Xiaochang Zhang, Zhen Sun, Jiangbo Li, Wen Yang, Yuke Cui, Wenjie Shu, Liang Guo, Shengqi Wang   +18 more
wiley   +1 more source

First record of Ehrharta longiflora Sm. (Poaceae, Ehrharteae) for South America [PDF]

Check List, 2018
Ehrharta longiflora Sm. (Poaceae) is recorded for the first time in South America. A few naturalized populations were located in disturbed areas of Valparaíso (Central Chile).
Joel Calvo, Andrés Moreira-Muñoz
doaj   +3 more sources

Climate Change Impacts on Droughts [PDF]

, 2016
This study makes use of the most current General Circulation Models (GCMs) forced with CMIP5 climate projections to quantify the projected changes in intra-annual drought characteristics for South–Central America during the next century at a fine gridded
MARINHO FERREIRA BARBOSA PAULO, NAUMANN GUSTAVO, SAIOTE CARRAO HUGO MIGUEL   +2 more
core   +1 more source

A dsRNA Viral Transcriptional Regulator Evades Innate Immunity by Hijacking Host CoTranscription Factor DHX9

Advanced Science, EarlyView.
This study identifies a new viral mechanism by a viral protein σ3 that functions as a vTR to suppress NF‐κB gene expression via its direct interaction with the host helicase DHX9. Through their interaction, σ3 not only impairs the initial recruitment of Pol II but also affects Pol II pause‐release and ultimately suppresses NF‐κB gene expression ...
Xueyang Pang, Shiyu Liu, Yixiao Zhu, Meleana M. Hinchman, Nan Qiao, Xuejun Li, Weiqian Dai, Yingying Tong, Man Xing, Jiling Ren, John S. L. Parker, Yingying Guo, Dongming Zhou   +12 more
wiley   +1 more source

Silicoflagellates, ebridians, and actiniscidians from Pliocene and Quaternary sediments off southern Chile, ODP Leg 141 [PDF]

, 1995
Three groups of siliceous flagellates are discussed from Sites 860 and 861 in the southeastern South Pacific Ocean off southern Chile. Three silicoflagellate zones and two ebridian/actiniscidian zones are recognized in upper Pliocene to Quaternary ...
Locker, Sigurd
core   +1 more source

A Modular Vaccine Platform Against SARS‐CoV‐2 Based on Self‐Assembled Protein Nanoparticles

Advanced Science, EarlyView.
A modular BP26 nanoparticle vaccine platform incorporating the SpyTag/SpyCatcher system enables high‐density, repetitive antigen display with post‐expression flexibility. Conjugation of the SARS‐CoV‐2 RBD to BP26 nanoparticles elicits strong humoral immunity and confers protection against viral challenge in vivo.
Seojung Lee, Yejin Jang, Yujin Kim, Yumi Shin, Ji‐Joon Song, Meehyein Kim, Sangyong Jon   +6 more
wiley   +1 more source