Biologically-active Phytochemicals in Food:  Analysis, Metabolism, Bioavailability and Function Edited by W. Pfannhauser (Graz University of Technology, Austria), G. R. Fenwick (Institute of Food Research, UK), and S. Khokhar (Procter Department of Food Science, UK). Royal Society of Chemistry, Cambridge, UK. 2001. xix + 616 pp. 15.5 × 23 cm. £69.50. ISBN 0-85404-806-5.

2002 ◽  
Vol 65 (3) ◽  
pp. 432-432
Author(s):  
Nicholas H. Oberlies
Keyword(s):  
Food Analysis ◽  
Royal Society ◽  
Biologically Active ◽  
Food Science ◽  
Food Research ◽  
University Of Technology ◽  
And Function

Depletion and Reconstitution of Active E. Coli Ribosomes

1975 ◽  
Vol 33 ◽  
pp. 640-641
Author(s):  
M. Boublik ◽  
W. Hellmann ◽  
F. Jenkins
Keyword(s):  
Protein Biosynthesis ◽  
Large Subunit ◽  
High Resolution Electron Microscopy ◽  
Small Subunit ◽  
Structure And Function ◽  
Biologically Active ◽  
Biological Macromolecules ◽  
E Coli ◽  
Resolution Electron ◽  
And Function

Correlations between structure and function of biological macromolecules have been studied intensively for many years, mostly by indirect methods. High resolution electron microscopy is a unique tool which can provide such information directly by comparing the conformation of biopolymers in their biologically active and inactive state. We have correlated the structure and function of ribosomes, ribonucleoprotein particles which are the site of protein biosynthesis. 70S E. coli ribosomes, used in this experiment, are composed of two subunits - large (50S) and small (30S). The large subunit consists of 34 proteins and two different ribonucleic acid molecules. The small subunit contains 21 proteins and one RNA molecule. All proteins (with the exception of L7 and L12) are present in one copy per ribosome.This study deals with the changes in the fine structure of E. coli ribosomes depleted of proteins L7 and L12. These proteins are unique in many aspects.

scholarly journals The role of citizen science in addressing grand challenges in food and agriculture research

2018 ◽  
Vol 285 (1891) ◽  
pp. 20181977 ◽  
Author(s):  
S. F. Ryan ◽  
N. L. Adamson ◽  
A. Aktipis ◽  
L. K. Andersen ◽  
R. Austin ◽  
...  
Keyword(s):  
Urban Communities ◽  
Citizen Science ◽  
Food Systems ◽  
The United States ◽  
Food Science ◽  
Grand Challenges ◽  
Food Research ◽  
Food And Agriculture ◽  
Science Projects ◽  
Agriculture And Food

The power of citizen science to contribute to both science and society is gaining increased recognition, particularly in physics and biology. Although there is a long history of public engagement in agriculture and food science, the term ‘citizen science’ has rarely been applied to these efforts. Similarly, in the emerging field of citizen science, most new citizen science projects do not focus on food or agriculture. Here, we convened thought leaders from a broad range of fields related to citizen science, agriculture, and food science to highlight key opportunities for bridging these overlapping yet disconnected communities/fields and identify ways to leverage their respective strengths. Specifically, we show that (i) citizen science projects are addressing many grand challenges facing our food systems, as outlined by the United States National Institute of Food and Agriculture, as well as broader Sustainable Development Goals set by the United Nations Development Programme, (ii) there exist emerging opportunities and unique challenges for citizen science in agriculture/food research, and (iii) the greatest opportunities for the development of citizen science projects in agriculture and food science will be gained by using the existing infrastructure and tools of Extension programmes and through the engagement of urban communities. Further, we argue there is no better time to foster greater collaboration between these fields given the trend of shrinking Extension programmes, the increasing need to apply innovative solutions to address rising demands on agricultural systems, and the exponential growth of the field of citizen science.

scholarly journals Why Governments Should Invest More in Fundamental Research

2019 ◽  
Vol 1 (1) ◽  
pp. 1-3
Author(s):  
Venki Ramakrishnan ◽  
Mejd Alsari
Keyword(s):  
Molecular Biology ◽  
Nobel Prize ◽  
Public Engagement ◽  
Royal Society ◽  
Scientific Research ◽  
Group Leader ◽  
Structure And Function ◽  
Science And Engineering ◽  
Fundamental Research ◽  
And Function

Venkatraman ‘Venki’ Ramakrishnan is the President of The Royal Society and Group Leader at the MRC Laboratory of Molecular Biology. In 2009 he shared the Nobel Prize in Chemistry ‘for studies of the structure and function of the ribosome’. In this interview he explains why governments should invest more in basic scientific research rather than simply on applied science and engineering. He also discusses interdisciplinarity, collaborations, and public engagement.

scholarly journals IX. On the structure and development of the liver

1849 ◽  
Vol 139 ◽  
pp. 109-137 ◽  
Keyword(s):  
Royal Society ◽  
A Priori ◽  
Structural Features ◽  
Structure And Function ◽  
Conclusive Evidence ◽  
Interesting Paper ◽  
Biliary Ducts ◽  
And Function ◽  
Do So

In venturing to offer a second communication to the Royal Society respecting the structure of the liver, I feel the rather anxious to do so, that I may have an opportunity of correcting an error and supplying a deficiency which existed in my previous paper. In the following observations I purpose to present some account of the structure of the liver examined in the ascending series of animals, and also to describe the several stages of its evolution in the embryo; in this way I trust I may be able to exhibit the characteristic structural features of the organ as it exists in Man and the higher animals, and also to determine the true place which ought to be assigned to it in a classification of the various glandular organs occurring in the same. I am not aware that any detailed account of the structure of the liver has been recently published, except that by M. Natalis Guillot, which however, so far as I comprehend it, does not seem to be one that can be readily accepted; the idea that the minute biliary ducts and lymphatics originate together in a common net-work, is à priori improbable, and entirely opposed to conclusive evidence (as I think), which will be subsequently adduced. A very interesting paper on the structure and function of the liver has also appeared in the 4th volume of the Guy’s Hospital Reports, from the pen of Dr. Williams; to his labours I shall several times have occasion to refer, but it will be seen that I differ from him in several particulars, especially respecting the importance of the basement or limitary membrane.

The neutrophil enzyme myeloperoxidase directly modulates neuronal response after subarachnoid hemorrhage, a sterile injury model

2020 ◽  
Author(s):  
Aminata P. Coulibaly ◽  
Pinar Pezuk ◽  
Paul Varghese ◽  
William Gartman ◽  
Danielle Triebwasser ◽  
...  
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Cognitive Deficits ◽  
Aneurysmal Subarachnoid Hemorrhage ◽  
Neuronal Response ◽  
Neutrophil Infiltration ◽  
Brain Parenchyma ◽  
Biologically Active ◽  
Cns Injury ◽  
And Function ◽  
The Brain

Abstract Background: Aneurysmal subarachnoid hemorrhage (SAH) is associated with the development of delayed cognitive deficits. Neutrophil infiltration into the central nervous system (CNS) is linked to the development of these deficits after SAH. It is however unclear how neutrophil activity, direct or indirect, influences CNS function in SAH. As such, the present project aims to elucidate neutrophil factors and mechanisms mediating CNS injury and cognitive deficits after SAH. Methods: Using a murine model of SAH and mice deficient in neutrophil effector functions, we determined which neutrophil effector function is critical to the development of deficits after SAH. Also, in vitro techniques were used to elucidate whether neutrophils directly or indirectly affect neuronal function after SAH. Results: Our results show that following SAH, neutrophils infiltrate the meninges, and not the brain parenchyma. Mice lacking functional myeloperoxidase (MPO KO), a neutrophil enzyme, lack both the meningeal neutrophil infiltration and the cognitive deficits associated with SAH. The re-introduction of biologically active MPO, and its substrate hydrogen peroxide, to the cerebrospinal fluid of MPO KO mice at the time of hemorrhage restores the spatial memory deficit observed after SAH. Furthermore, MPO directly affects the function of both primary neurons and astrocytes in culture. Neurons exposed to MPO and its substrate show decreased calcium activity at baseline and after stimulation with potassium chloride. In addition, MPO and its substrate lead to significant astrocyte loss in culture, phenocopying a result observed in the brain after SAH. Conclusions: These results implicate MPO as a mediator of neuronal dysfunction in SAH through direct effect on both neurons and astrocytes. Finally, these results show that, in SAH, the activity of innate immune cells in the meninges can modulate the activity and function of the underlying brain tissue.

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