Kathy
Well-known member
Molecule
From Wikipedia, the free encyclopedia
In general, a molecule is the smallest particle of a pure chemical substance that still retains its composition and chemical properties. [1] In chemistry and molecular sciences, a molecule is a sufficiently stable, electrically neutral entity composed of two or more atoms.[2] The concept of monatomic molecule (single-atom, as in noble gases) is used almost exclusively in the kinetic theory of gases. [3] [4] [5] Polyatomic ions may sometimes be usefully thought of as electrically-charged molecules.
The science of molecules is called molecular chemistry or molecular physics, depending on the focus. Molecular chemistry deals with the laws governing the interaction between molecules that results in the formation and breakage of chemical bonds, while molecular physics deals with the laws governing their structure and properties. In practice, however, this distinction is vague. In molecular sciences, a molecule consists of a stable system (bound state) comprising two or more atoms. The term unstable molecule is used for very reactive species, i.e., short-lived assemblies (resonances) of electrons and nuclei, such as radicals, molecular ions, Rydberg molecules, transition states, Van der Waals complexes, or systems of colliding atoms as in Bose-Einstein condensates. A peculiar use of the term molecular is as a synonym to covalent, which arises from the fact that, unlike molecular covalent compounds, ionic compounds do not yield well-defined smallest particles that would be consistent with the definition above. No typical "smallest particle" can be defined for covalent crystals, or network solids, which are composed of repeating unit cells that extend indefinitely either in a plane (such as in graphite) or three-dimensionally (such as in diamond).
Protein deficiency can lead to symptoms such as fatigue, insulin resistance, hair loss, loss of hair pigment, loss of muscle mass, low body temperature, hormonal irregularities, as well as loss of skin elasticity. Severe protein deficiency, encountered only in times of famine, is fatal, due to the lack of material for the body to facilitate as energy
Reader this is indeed an interesting article you have posted. The fact that it states you "must know the enemy" really should be taken far more seriously than it has been.
Few people have analysed the prion protein - in both its healthy and mal-formed state. This analysis, or "characterization" of the PrPC and PrPSc proteins has been best demonstrated by Dr. David Brown of Bath University in the UK. Not only has he shown that the healthy prions PrPC binds many copper ions; but that the mal-formed prion PrPSc has had some, if not all, of these copper ions replaced by manganese.
The brain of CJD victims has a 50% decrease in copper, and an 10 fold increase in manganese. Quote from:
J. Neurochem 2001 Sep;78(6):1400-8.
Aberrant metal binding by prion protein in human prion disease.
"Human prion diseases are characterized by the conversion of the normal prion protein (PrP(C)) into a pathogenic isomer (PrP(Sc)). Distinct PrP(Sc) conformers are associated with different subtypes of prion diseases. PrP(C) binds copper and has antioxidation activity. Changes in metal-ion occupancy can lead to significant decline of the antioxidation activity and changes in conformation of the protein. We studied the trace element status of brains from patients with sporadic Creutzfeldt-Jakob disease (sCJD). We found a decrease of up to 50% of copper and an increase in manganese of approximately 10-fold in the brain tissues from sCJD subjects. We have also studied the metal occupancy of PrP in sCJD patients. We observed striking elevation of manganese and, to a lesser extent, of zinc accompanied by significant reduction of copper bound to purified PrP in all sCJD variants, determined by the PrP genotype and PrP(Sc) type, combined. Both zinc and manganese were undetectable in PrP(C) preparations from controls. Copper and manganese changes were pronounced in sCJD subjects homozygous for methionine at codon 129 and carrying PrP(Sc) type-1. Anti-oxidation activity of purified PrP was dramatically reduced by up to 85% in the sCJD variants, and correlated with increased in oxidative stress markers in sCJD brains. These results suggest that altered metal-ion occupancy of PrP plays a pivotal role in the pathogenesis of prion diseases. Since the metal changes differed in each sCJD variants, they may contribute to the diversity of PrP(Sc) and disease phenotype in sCJD. Finally, this study also presented two potential approaches in the diagnosis of CJD; the significant increase in brain manganese makes it potentially detectable by MRI, and the binding of manganese by PrP in sCJD might represent a novel diagnostic marker."
Dr. JS Becker et al., have identified over 20 brain proteins (tested for 176) containing naturally occurring radioactive uranium.
Anal Chem 2005 Sep 15;77(18):5851-60.
Determination of phosphorus-, copper-, and zinc-containing human brain proteins by LA-ICPMS and MALDI-FTICR-MS.
Their paper is very important as these doctors have developed a method of analyzing brain material for the various metals and elements, such as phosphorous, copper, sulfur, etc.
Within the context of this paper, the brain sections of patients with Alzheimer's disease were examined. "Protein spots with an increased 235U/238U isotope ratio were detected by LA-ICPMS in gels, for example, of Alzheimer-diseased brain samples doped with 235U-enriched uranium after 2D gel electrophoresis.24 This result demonstrates that certain proteins are able to accumulate uranium."
I have asked Dr. Becker if they have ever analysed the brains of cattle with BSE, deer with CWD, or patients with vCJD. The response was no.
I contacted the National Prions Center at Case Western and informed them of Dr. Becker's accomplishments, amoung others; and, their response was to say that Dr. Becker could apply to them for brain material to test.
This I find unacceptable, as when informed of such enlightening information regarding Alzheimer mal-formed proteins and new technology developed by this German group, I would have thought that the National Prion Institution would have requested of Dr. Becker that they analyse these TSE tissues.
Once again, if you don't look for it - you'll never find it!
This tells me that the National Prion Institute is not interested in finding the answers to disease. They must be just reactive to research requests, they must also be pro-active in having relevant experiments performed as new technology allows.
Dr. Glenn Tellings, of Kentucky University, (mentioned in the posted article re: prions in muscle/CWD) was the one to state at the Prion Symposium in Calgary, Alberta February 2/06 that:
"They have not "characterized" the prions which they use in their injection transmission experiments, and..... that it would be some time before they did so."
Once again, I must express my disbelief in such flawed-manipulative research. It is one thing to not do the tests, and quite another to TOTALLY IGNORE the existing research performed on the subject.