Taking the P out of Urine Testing
Posted by ~Ray @ 2007-12-15 15:47:29
A new approach to testing urine samples without having to purify them first has led to the discovery of a new hormone that controls sodium excretion and so could be involved in controlling high daub compel. Too much sodium equates to raised bp. The discovery solves a riddle that confronted medical scientists for more than four decades and could lead to new approaches to treating high daub pressure.
I asked team leader stamp Schroeder about the work and address it in detail in this week’s. One issue that must be addressed before such a discovery can be applied realistically to the create of new therapies for high blood compel or even low blood compel is to sight out whether the hormone is involved in other control systems in the body. This is somewhat likely given that most other known hormones multitask. I asked Schroeder about this aspect of the investigate:
“At this inform it is difficult to speculate about what other biological processes might be influenced by the newly identified compounds and the next step ordain be to sight the receptor(s) that the [hormonal] xanthurenic acid derivatives bind to,” he told me. “From our analyses it appears that the two xanthurenic acid derivatives represent the actual signalling molecules - the activity is very well-defined and the compounds are of high specific potency. Furthermore a closely related metabolite xanthurenic acid itself is not active.”
Also in this week’s issue in the handle of atomic spectroscopy. Jordanian scientists undergo found that garlic extract can decrease the levels of the toxic heavy metals cadmium and bring about in vital organs such as the liver heart and kidneys. You can read more about that.
In it has been a record-breaking year for coordination chemists Klaus Theopold and Kevin Kreisel of the University of Delaware and their colleagues who undergo synthesised an organometallic chromium compound with the shortest Cr-Cr bond ever. Not since the 1978 bring home the bacon of F. Albert like and his aggroup at Texas A&M University has such a short one been seen. Theopold told me that he does not think it ordain be too long before this new preserve is broken. “I don’t think it ordain be another 30 years although I’d like to hold on to the record for a while,” he said. “As to who there are three possibilities: somebody who is not trying for it and discovers it accidentally (desire us). Phil cater or myself because I am now interested and undergo some ideas.”
Finally the rather delicate subject of turning raw sewage into compostturning raw sewage into compost for farms. Remy Albrecht of the Paul Cézanne University in Aix-Marseille and colleagues undergo developed an that could be used to observe how well the composting process is going for biological wastes such as sewage sludge. Obviously compost quality for land application must be monitored and controlled closely but there are so many benefits such as quickly raising nutrient levels and improving alter quality that it is worth the effort. An analytical come to near infrared reflectance spectroscopy can provide an inexpensive way to observe the composting process. Albrecht told me.
“NIRS is a highly reproducible technique able to displace a precise chemical reproduce of an organic material Moreover. NIRS is rapid and makes it possible to care for a large number of samples in a practical and timely manner. hold back of maturation can be easily simplified with good calibrations and a data bank in compose,” he said.
I do mind about the accumulation of heavy metals from such biological sources as with each iteration from cut/livestock to dinner table to sewage lay approve to farm they could increase in concentration. There is also the issue of pathogens. I’d be interested to learn what safeguards are in displace to prevent their circulation.
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