SPIRULINA: THE WONDER FOOD OF THE 21ST CENTURY

2004 ◽  
Vol 08 (23) ◽  
pp. 1298-1302 ◽  
Author(s):  
Krutika Desai ◽  
Subramanian Sivakami
Keyword(s):  
Trace Metal ◽  
21St Century ◽  
Therapeutic Agent ◽  
Nutrient Supplement

This article is about spirulina and how it can be used as a nutrient supplement, a therapeutic agent, trace metal supplement, antioxidant, pigments, enviroment protector and a source of enzymes.

Trace metal bioavailabilities in the Thames estuary: continuing decline in the 21st century

2015 ◽  
Vol 96 (1) ◽  
pp. 205-216 ◽  
Author(s):  
Keera M. Johnstone ◽  
Philip S. Rainbow ◽  
Paul F. Clark ◽  
Brian D. Smith ◽  
David Morritt
Keyword(s):  
Trace Metals ◽  
Trace Metal ◽  
20Th Century ◽  
21St Century ◽  
Brown Seaweed ◽  
Fucus Vesiculosus ◽  
Thames Estuary ◽  
Time Period ◽  
Time Trace ◽  
Over Time

Levels of pollution, including contamination by toxic metals, in the Thames estuary reduced over the last four decades of the 20th century. This 2014 study investigates whether the declines in the bioavailabilities of trace metals (Ag, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, V, Zn) have continued in the 21st century, using a suite of littoral biomonitors also employed in 2001 – the brown seaweed Fucus vesiculosus, the strandline, talitrid amphipod Orchestia gammarellus and the estuarine barnacle Amphibalanus improvisus. Bioaccumulated concentrations represent relative measures of the total bioavailabilities of each metal to the biomonitor over a previous time period, and can be compared over space and over time. Trace metal bioavailabilities varied along the estuary, and, in general, fell between 2001 and 2014, a reflection of the continuing remediation of the Thames estuary from its severely polluted state in the middle of the 20th century.

ACE2 as therapeutic agent

2020 ◽  
Vol 134 (19) ◽  
pp. 2581-2595
Author(s):  
Qiuhong Li ◽  
Maria B. Grant ◽  
Elaine M. Richards ◽  
Mohan K. Raizada
Keyword(s):  
Therapeutic Agent ◽  
Renin Angiotensin System ◽  
Peptide Hormone ◽  
Experimental Models ◽  
Electrolyte Balance ◽  
Ang Ii ◽  
Angiotensin Converting Enzyme 2 ◽  
Beneficial Effects ◽  
Overwhelming Evidence ◽  
Future Challenges

Abstract The angiotensin-converting enzyme 2 (ACE2) has emerged as a critical regulator of the renin–angiotensin system (RAS), which plays important roles in cardiovascular homeostasis by regulating vascular tone, fluid and electrolyte balance. ACE2 functions as a carboxymonopeptidase hydrolyzing the cleavage of a single C-terminal residue from Angiotensin-II (Ang-II), the key peptide hormone of RAS, to form Angiotensin-(1-7) (Ang-(1-7)), which binds to the G-protein–coupled Mas receptor and activates signaling pathways that counteract the pathways activated by Ang-II. ACE2 is expressed in a variety of tissues and overwhelming evidence substantiates the beneficial effects of enhancing ACE2/Ang-(1-7)/Mas axis under many pathological conditions in these tissues in experimental models. This review will provide a succinct overview on current strategies to enhance ACE2 as therapeutic agent, and discuss limitations and future challenges. ACE2 also has other functions, such as acting as a co-factor for amino acid transport and being exploited by the severe acute respiratory syndrome coronaviruses (SARS-CoVs) as cellular entry receptor, the implications of these functions in development of ACE2-based therapeutics will also be discussed.

E-Learning: Educating the 21st Century Speech-Language Pathologist

ASHA Leader ◽  
2007 ◽  
Vol 12 (14) ◽  
pp. 24-25 ◽  
Author(s):  
Gloria D. Kellum ◽  
Sue T. Hale
Keyword(s):  
21St Century ◽  
Speech Language Pathologist ◽  
E Learning

1521: Turp Syndrome in the 21st Century: A Historical Event

2004 ◽  
Vol 171 (4S) ◽  
pp. 400-400
Author(s):  
Mark R. Young ◽  
Andrew R. Bullock ◽  
Rafael Bouet ◽  
John A. Petros ◽  
Muta M. Issa
Keyword(s):  
21St Century ◽  
Historical Event ◽  
Turp Syndrome
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