Results 91 to 100 of about 90,880 (329)

Motility at the origin of life: Its characterization and a model

, 2013
Due to recent advances in synthetic biology and artificial life, the origin of life is currently a hot topic of research. We review the literature and argue that the two traditionally competing "replicator-first" and "metabolism-first" approaches are ...
Froese, Tom, Ikegami, Takashi, Virgo, Nathaniel   +2 more
core   +1 more source

Inulin: Potential prebiotic

Medicinski pregled, 2009
Introduction. Prebiotic factor, such as inulin, is able to stimulate the growth of bifidobacteria selectively at the expense of more putrefactive bacteria. Chemical structure - Inulin has been defined as carbohydrate material consisting of ? (2-1) fructosyl-fructose links.
Zdenka Sokic, Jasmina Knezevic, Miroslav Vrvic   +2 more
openaire   +3 more sources

Dietary Mannan‐Rich Fractions Attenuate Weaning Stress in Piglets via Modulating Gut Microbiota and TLR5/NF‐κB Signaling

Animal Research and One Health, EarlyView.
This study aimed to investigate the potential of a mannan‐rich fraction (MRF) as a dietary intervention to alleviate weaning stress in piglets. Our results revealed that MRF could alleviate weaning stress by modulating the gut microbiota and the TLR5/NF‐κB signaling pathway, offering a novel and sustainable alternative to antibiotic use in swine ...
Yutong Lu, Yiwei Sun, Kun Cai, Pingli He, Gang Lin, Zengkai Qi, Hu Liu, Junshu Yan, Ning Ma   +8 more
wiley   +1 more source

Origin of Life

, 2012
The evolution of life has been a big enigma despite rapid advancements in the fields of biochemistry, astrobiology, and astrophysics in recent years.
A. Gibbons, Ashwini Kumar Lal, C. Bohler, C. Chyba, C. Huber, C.E. Manning, C.J. Salter, D. Penny, D. Warmflash, D.S. Heckman, D.S. Mckay, E.G. Roussel, F. Hoyle, F. Hoyle, F. Hoyle, G.F. Joyce, H.C. Arp, H.C. Urey, J. Li, J. Maddox, J. Postgate, J.B.S. Haldane, J.K. Fredrickson, J.V. Narlikar, J.W. Schopf, K. Kvenvolden, L.-H. Lin, L.E. Orgel, L.J. Richardson, M.T. Mondigan, N.C. Wickramsinghe, P. David, P. Ehrenfreund, P. Senapathy, R. Shapiro, R.D. Lorenz, S Arrhenius, S.J. Mojzsis, S.L. Miller, S.L. Miller, Stofan, T. Brock, T.D. Brack, W. Gilbert, W. Martin, Y.-J. Kuan, Y.-J. Ma   +46 more
core   +1 more source

Dietary supplement of sodium butyrate improves the growth performance and intestinal health by targeting Wnt/β‐catenin signaling pathway in rabbits

Animal Research and One Health, EarlyView.
Dietary supplement of sodium butyrate, may relate to regulating intestinal health and thus the growth performance and meat quality of rabbits by regulating the continuous process of promoting the periodic cycle of cecal epithelial cells. Abstract Supplementation of sodium butyrate (SB) has been proved to be beneficial for improving the growth ...
Mengke Ni, Zhitong Wang, Zhichao Li, Mengjuan Chen, Hui He, Hanfang Cai, Zhi Chen, Ming Li, Huifen Xu   +8 more
wiley   +1 more source

Origin of symbol-using systems: speech, but not sign, without the semantic urge [PDF]

, 2014
Natural language—spoken and signed—is a multichannel phenomenon, involving facial and body expression, and voice and visual intonation that is often used in the service of a social urge to communicate meaning.
Alberts B, Baldwin JM, Darwin C, Darwin C, Deacon TW, Donald M, Fauconnier G, Gross CG, Hauser M, Jablonski NG, Jackendoff R, Judson HF, Kendon A, King BJ, Klima ES, Knight C, Langacker R, Martin I. Sereno, Merker B, Miller SL, Mithen S, Rubens AB, Sereno MI, Sereno MI, Sereno ML, Wills C, Woese CR, Yip M   +27 more
core   +2 more sources

The Future of Prebiotic Chemistry

ACS Central Science, 2016
Two recent papers reporting advances in our understanding of how a protometabolism may have developed in a prebiotic world add new meaning to the theme “First Reactions” and highlight the challenges facing synthetic organic chemists attempting to retrodict the origins of life.
Alexander J. Wagner, Donna G. Blackmond
openaire   +3 more sources

Poly(ethylene Glycol)‐Based Peptidomimetics (Pegtides) of Antimicrobial Peptides

ChemBioChem, EarlyView.
Polyethylene glycol (PEG) is commonly used to improve the pharmacokinetics and pharmacodynamics of therapeutic candidates by conjugation. Here PEG is exploited for peptidomimetic conversion of antimicrobial peptides (AMPs), as candidate antibacterial agents, by replacing their polyamide backbone. The pegtides obtained thereby can be readily synthesized
Conor Shine, John R. F. B. Connolly, Robert D. Murphy, Hazel Lafferty, Abdalmalek Alfnikh, Ned P. Buijs, Hawraa Shahrour, Nathaniel I. Martin, Eoghan O'Neill, George Amarandei, Jimmy Muldoon, Marc Maresca, Deirdre Fitzgerald‐Hughes, Marc Devocelle   +13 more
wiley   +1 more source

Effects of prebiotic (Fermacto) in low protein diet on some blood parameters and intestinal microbiota of broiler chicks

Italian Journal of Animal Science, 2010
This study was conducted to evaluate the effects of prebiotic (Fermacto) in low protein diet on serum cholesterol and intestinal microbiota of broiler chicks. One hundred and fifty six 1-day old Ross 308 broiler chicks of both sexes were used for 42 days.
Amir Attar, Farid Firouzbakhsh, Hadi Sayyahzadeh, Mansour Rezaei, Mahalam Ghiyasi   +4 more
doaj   +1 more source

Prebiotic Reaction Networks in Water

Life, 2020
A prevailing strategy in origins of life studies is to explore how chemistry constrained by hypothetical prebiotic conditions could have led to molecules and system level processes proposed to be important for life’s beginnings. This strategy has yielded
Quoc Phuong Tran, Zachary R. Adam, Albert C. Fahrenbach   +2 more
doaj   +1 more source