Van alles m.b.t. Vitamine B12

Onderwerpen met wetenschappelijke, medische of algemene gezondheidsgerelateerde informatie en discussie dat niet specifiek betrekking heeft op de ziekte van Lyme.
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vonneke
Berichten: 7127
Lid geworden op: Do 16 Jun 2005 20:57

Re: Van alles m.b.t. Vitamine B12

Berichtdoor vonneke » Za 24 Dec 2011 20:25

http://www.ntvg.nl/publicatie/Metformin ... %C3%ABntie

Ned Tijdschr Geneeskd. 2010;154:A2351

Metformine veroorzaakt wel degelijk B12-deficiëntie

Metformine= http://nl.wikipedia.org/wiki/Metformine

Metformine kan malsabsorbtie van vitamine B12 veroorzaken, maar hoe sterk dat effect is, is niet goed bekend. Ook kan metformine een daling van de folaatconcentratie geven. Tekort aan vitamine B12 en folaat kunnen een stijging geven van de plasmaconcentratie van homocysteïne, een onafhankelijke risicofactor voor hart- en vaatziekten.

Je zelfbeeld bepaalt vaak de grenzen
van wat je als individu kunt bereiken.


Afbeelding

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Berichten: 373
Lid geworden op: Di 21 Feb 2012 8:44

Re: Van alles m.b.t. Vitamine B12

Berichtdoor ------ » Do 7 Feb 2013 20:45

hallo,

vitamine b-12 toevoegen (hoge doseringen) is schijnbaar niet geheel ongevaarlijk,

is iemand hier bekend mee?

http://home.hccnet.nl/michel.post/B12/HOOFD20.HTM

Wel interesant om de bijlage in het geheel te lezen als je naar de inhoudsopgave gaat.

ecmuj
Berichten: 4
Lid geworden op: Ma 19 Aug 2013 23:56

Re: Van alles m.b.t. Vitamine B12

Berichtdoor ecmuj » Di 20 Aug 2013 2:14

Quote;
vitamine b-12 toevoegen (hoge doseringen) is schijnbaar niet geheel ongevaarlijk,is iemand hier bekend mee?
http://home.hccnet.nl/michel.post/B12/HOOFD20.HTM

Zie hier;
20.3.3 Conserveringsmiddelen (uit Literatuurstudie Michel Post)
Citaat; De oorzaak van de bijwerkingen kan ook liggen in allergie voor de conserveringsmiddelen die gebruikt worden in de B12-preparaten. Eén zo’n stof waarbij negatieve reacties zijn opgetreden is Phenylcarbinol.
In één geval veroorzaakte die stof een enorme afbraak van bloedplaatjes. Van 439.000 naar 45.000 binnen 1 uur.
Na toediening van dezelfde B12 zonder het conserveringsmiddel bleef de negatieve reactie uit [Lagerholm 1958].
Een andere stof die in dit kader wel genoemd is, is benzylalcohol [Hovding 1968].

>> Opmerking; Phenylcarbinol is synoniem voor Benzylalcohol (E321)
Ook deze is een synoniem voor Benzylalcohol; butylhydroxytolueen. <<

Benzylalcohol (E321)
Voor en tijdens zwangerschap.
http://www.consumed.nl/medicijnen/1596/Lincocin%C2%AE
Er zijn onvoldoende gegevens om een eventuele schadelijkheid van dit middel tijdens de zwangerschap goed te kunnen beoordelen. Het conserveermiddel (benzylalcohol) is in staat de placenta te passeren en in de foetus terecht
kan komen.
Gezien deze onzekerheid is het advies aan zwangeren, of zij die op korte termijn zwanger willen worden, om Benzylalcohol of synoniemen daarvan strikt te mijden.
Benzylalcohol is in elk geval strikt verboden in medicijnen voor kinderen van 3jaar en jonger.
Hydroxocobalmine (B12) van oa. Centrafarm bevat daarvan 21mg.... 21x méér dan er aan B12 in zit.
Het is een volkomen onzinnige toevoeging, aangezien er genoeg andere merken B12-injecties zijn die deze stof niet bevatten, oa TAKEDA (voorheen Nycomed)
-----------------------------------
http://medicinfoconsumer.devgem.be/Pdf/1414531.pdf
Innohep in flacons bevat het conserveermiddel benzylalcohol. Benzylalcohol kan de placenta passeren, innohep in flacons dient daarom niet gebruikt te worden door zwangere vrouwen.
-----------------------------------
Quote;vitamine b-12 toevoegen (hoge doseringen) is schijnbaar niet geheel ongevaarlijk, is iemand hier bekend mee?
Overdoseren met B12 (Hydrocobalamine) is NIET MOGELIJK !!
Een arts die anders beweerd is B12-onkundig en zou je snel een andere arts moeten zoeken die wèl kundig is.....
Ik heb vele verschillende B12-bloedwaarden voorbij zien komen tot méér dan 7800pmol/l zonder klachten daarvan.
B12 wordt ook als levensreddend vermeld bij slachtoffers van rookvergiftiging (bv binnenbrand).
De dosering in een dergelijk geval is 5gram welke, indien nodig geacht, binnen 1,5uur 2x herhaald mag worden.
We spreken dan over een totaal van 15gram (per infuus)..... oftewel de totale werkzame stof van 15.000 injecties.
Deze hoeveelheid is genoeg voor 140jaar lang 2x per week injecteren. (Google op "Cianokit")

bamboe
Berichten: 4028
Lid geworden op: Di 23 Dec 2008 4:30

Re: Van alles m.b.t. Vitamine B12

Berichtdoor bamboe » Za 7 Sep 2013 12:58

Why is vitamin B-12 as a supplement or additive dangerous?
Many Universities have published articles on the ability of Vitamin B-12 to convert mercury vapor into the much more deadly "Methyl mercury". Methyl mercury knows no barriers, and creates far more havoc than other mercury chemicals, because of its ability to travel anywhere in the body without inhibitions. Sometimes the effects of high doses of Vitamin B-12 (over 50 micrograms) take months to correct.

http://www.hugginsappliedhealing.com/faqs.php

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Diesel
Berichten: 224
Lid geworden op: Za 11 Mei 2013 11:52

Re: Van alles m.b.t. Vitamine B12

Berichtdoor Diesel » Zo 8 Sep 2013 22:12

the MethylMercury Myth

https://b12d.org/methylmercury-myth

Methyl mercury is a particularly toxic form of mercury. We talk about methyl-cobalamin and say that it is a methyl-donor for DNA, so I suppose it is only natural that some people wonder if methyl-cobalamin could possibly donate its methyl group to mercury.

No.

Methyl mercury is only created by artificial processes (industrial chemical reactions, burning mercury), and is not created in living organisms.

B12 (in the form of methyl-cobalamin) is good at donating its methyl group to certain other biological substances like DNA, but doesn't donate it to inorganic stuff like mercury.

Cobalamin (the bit that hasn't got methyl on it - also known as B12) spends its time floating around looking for heavy metals. It binds to the heavy metals, and the kidney looks out for cobalamin bound to heavy metals (mercury is a heavy metal) and flushes them out in the urine. Actually cobalamin looks for most toxins and flushes them out of the body - that's one reason why alcohol and smoking both reduce your amount of B12 (and cause all sorts of nasty diseases) - because the B12 is doing its best to remove the toxins and is being removed at the same time.

So if you are worried about mercury or any other poisoning, then take B12 to remove the poison. It certainly won't make it worse and most likely will make it a lot better

Artikel van de Zweedse arts en onderzoeker, Dr Britt Ahlrot-Westerlund, Karolinska Instituut, met vingerverwijzing naar dr. Hal Huggins inzake methylcobalamine-methylkwik.

http://www.whale.to/w/b12.html

VITAMIN B12 LEVELS AND MERCURY - A LINK WITH MULTIPLE SCLEROSIS AND OTHER DISORDERS

Swedish physician and researcher, Dr Britt Ahlrot-Westerlund, working at the Karolinska Institute, has investigated levels of specific nutrients, including vitamin B12, in heavy metal-affected patients (and in particular those with multiple sclerosis), since the early 1970's. She has specifically studied vitamin B12 levels, mainly in heavy metal-affected patients, and has done considerable work with supplementing vitamin B12 by injection in her amalgam damaged patients with many different disorders, particularly those with multiple sclerosis. In an article written in conjunction with Heavy Metal Bulletin Editor, Monica Kauppi, Dr Ahlrot-Westernund explains that the administration of relatively high doses of vitamin B12, in the form of methylcobalamin, in the treatment of fibromyalgia, diabetics, MS and amalgam-related disorders, has been gradually increasing in Sweden since the end of the 1980s. She reports that the results of this treatment are remarkable.

Note: According to the Heavy Metal Bulletin, March 1999, some researchers [including Dr Hal Huggins] and the International Academy of Oral Medicine and Toxicology in the USA have previously recommended caution in the use of methyl cobalamin injections in the treatment of amalgam patients. They feared that vitamin B12 in that form could readily methylate mercury in the body, ie. transform it into its more harmful form of methylmercury - when methylated, mercury is much more easily absorbed to the blood and then transformed to mercury ions, which are an intensely toxic form of mercury.

THE PRESENCE OF MERCURY CAN REDUCE VITAMIN B12
In a joint article in the December 1995 issue of Heavy Metal Bulletin by Dr Ahlrot-Westerlund and Editor, Monica Kauppi, they explain that the presence of heavy metals can reduce the uptake of vitamin B12. "The transport of vitamin B12 to the brain can be disturbed or interrupted by heavy metals such as mercury, which affects the blood-brain barrier by causing leakage and hampering the active transport of nutrients. In regard to heavy metal toxicity, in many cases it can be assumed that multiple deficiencies, not always easily separable, can be found."

"Lately it has been discovered that anaemia is not always present in neurological and psychological disturbances associated with B12 deficiencies. In diseases such as Alzheimer's and suspected amalgam related disorders, hidden B12 deficiencies in the central nervous system (withoutlow blood values) have been found."

"Vitamin B12 deficiencies have been mainly related to blood deficiency diseases such as pernicious anaemia. Low levels of B12 are followed by neurological and psychological disorders, such as disturbed sense of co-ordination, paraesthesiae, loss of memory, abnormal reflexes, weakness, loss of muscle strength, exhaustion, confusion, low self-confidence, spacticity, incontinence, impaired vision, frequent need to pass water, and other psychological disturbances."

Dr Ahlrot-Westerlund explained a possible reason for the mercury/B12 connection: "Mercury seems to change valency and binding site in the body, and this causes increased free radical formation. It is possible that the mercury change in valency in pro-oxidative direction, oxidises the cobalt atom in the B12. Due to its molecular size, vitamin B12 normally has difficulties in crossing the blood-brain barrier, and it is possible that denaturation makes this even more difficult."

"Rarely detectable through normal testing procedures, such as blood serum or methyl malonic acid, B12 deficiencies in the brain and Central Nervous System can be determined by checking "increased homocystein in liquor cerebrospinalis, the most appropriate test method." (There are laboratories which do the specialised LIQUOR test method for vitamin B12, in Canada, France, USA and Britain, as well as the Uddevalla Hospital in Sweden.)

"The uptake from oral B12 supplementation is usually very low, approximately only 1 percent. Vitamin B12 is therefore given intramuscularly. Highly recommended by the Swedish Association of Dental Mercury Patients, the form methylcobalamin B12 is usually the drug of choice for treatment of patients with amalgam induced disorders. The reason why high doses of B12 (intramuscular injections in a specific form of methylcobalamin) are recommended is that, in the presence of heavy metals in the
blood-brain barrier, most of the vitamin B12 seems to be consumed (for reasons we don't yet know) and, depending on the level of heavy metal exposure, part of the supplemented B12 will most probably also be consumed in this way until the surplus can be used in the brain where it is needed." She recommends that only certain brands of methylcobalamin B12 are used because some contain preservatives which can cause problems in sensitive patients. She also stresses that for this treatment for patients with metal-induced disorders, a certain protocol be followed which includes the addition of folic acid, and vitamin B6.

ANECDOTAL EVIDENCE:
The following case studies are reported by Dr Ahlrot-Westerlund, to illustrate the effect that this type of vitamin B12 administration can have on those who require it. All were dental amalgam patients, who had their amalgams removed, with antioxidant supplementation, as part of the treatment. Dr Ahlrot- Westerlund writes "Of the patients in these case reports, some were ill before amalgam removal, while others developed symptoms in connection with unprotected amalgam replacement, and one patient became too ill to be able to complete the amalgam exchange. Not all patients have "ideal" replacement materials. There are many more cases of remarkable recovery after methylcobalamin treatment than these few, representing patients with a variety of diagnoses."

1: A Swedish physician, aged fifty, suffered from fibromyalgia and painful paraesthesia for years and was unable to work in her profession. She treated herself with daily injections of methylcobalamin, folic acid and B6, together with the recommended antioxidant supplementation for amalgam patients. She noticed that not only did she benefit intellectually (confirmed by me) but her symptoms ceased after six months treatment. Thinking that she was cured, she stopped the treatment, but after only about a week all her symptoms returned. She recommenced the treatment and after eight days she recovered.

2: A patient with a diagnosis of multiple sclerosis was investigated for heavy metals in 1985. She had a high pathological level of mercury in the LIQUOR test (2.3 milligrams mercury per litre). Her condition rapidly deteriorated. For six years she slurred incomprehensively, and she could not fix her eyes long enough to be able to read due to nystagmus, dimness of vision and double vision. She developed a spastic paraplegia and as her hands were paralysed, she was unable to feed herself. She was confined to a wheelchair. In November 1994, the vitamin B12 treatment was started (similar to case no.1). After a week the patient was able to speak on the telephone in a normal voice, and she noticed that her mind had 'cleared up'. Ten days later she was able to read the newspaper for the first time in over seven years, and to do fine embroideries in silk. Three weeks later she could stand up with support and eat without much assistance (the left hand is still not functional but the right one is fine). She is now taking part in social life and goes to the theatre and restaurants. In her latest report in December 1995, she told me that she felt much stronger and less tired, although she was still unable to walk.

3: A Swedish member of parliament, with chronic mercury poisoning from dental amalgam, was becoming more and more exhausted and progressively losing her capacity to work. Having removed her amalgams a few years ago, she had followed the recommended antioxidant program. After about five months of methylcobalamin treatment, her capacity to work and her intellectual capacity in general greatly improved. She now works 16 to 18 hours a day and only needs to sleep for five hours.

4: A former lieutenant in the Swedish army, born in 1959 wanted to change his career to medicine. In his third year of medical studies however, he became ill and was diagnosed with amalgam toxicity. His symptoms included physical weakness and dizziness, but above all he suffered from a very strong depression (with suicidal thoughts), and an inability to concentrate which forced him to give up his studies. He took antidepressants, and in early 1995 began the methylcobalamin program, which in his case also included a high oral dose of vitamin C (twenty grams per day) and the amino acid tryptophan. Last summer he stopped taking the antidepressives and his condition since then has gradually improved. He is now working full time as a teacher.

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Dr Britt Ahlrot-Westerlund passed away in March 1999. Heavy Metal Bulletin remarked that she will be remembered for her research into multiple sclerosis, free radicals, heavy metals, and vitamin B12, and "for always lending a helping hand whenever needed." Her important work will be made available by a group of Swedish researchers.

Holistische tandarts dr. Hal Huggins slijt nog wat 'goederen' langs de digitale snelweg: supplementen, boeken, dvd's via zijn infosite: http://hugginsappliedhealing.com/store/

Diesel
''Hij is wijs, die weet, dat hij niets weet''

My weblog tells you more about Vit.B12 deficiency

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Diesel
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Lid geworden op: Za 11 Mei 2013 11:52

Re: Van alles m.b.t. Vitamine B12

Berichtdoor Diesel » Do 14 Nov 2013 14:29

Metabool syndroom X

MBOG lezing 5.10.2002 : Ik wil niet zoet zijn - Marijke de Waal Malefijt

https://www.google.nl/search?q=MBOG+lez ... 2&ie=UTF-8

Syndroom X is de naam die gegeven wordt aan een cluster van symptomen die voorkomt bij iemand. Een gestoorde glucose-intolerantie, hoge bloeddruk, afwijkingen in cholesterol- en lipidenspiegels en centraal overgewicht (ophoping van vetweefsel rond het middel en rond de organen in de buikholte) zijn de belangrijkste componenten van dit syndroom. In een lezing voor de American Diabetes Association in 1988 wees Reaven op het frequent voorkomen van deze combinatie en noemde het “syndroom X’. Deze onderzoeker beschouwde hoge bloeddruk, een gestoord glucose-metabolisme, een gestoord lipiden-metabolisme en insuline-resistentie als hoofdkenmerken ervan.

B 12 tekorten kunnen hypo-en hyperthyreoidie geven, verhoogde homocysteine spiegels met daardoor kans op hart- en vaatklachten, vermoeidheid, ontsteking van het mondslijmvlies, depressiviteit, bloedarmoede, zenuwontstekingen, stijve spieren, lopen met slepende tred, gevoeligheid voor licht en geluid (dit kan ook komen door B 3 en magnesiumtekort), onaangename lichaamsgeur, cognitieve stoornissen, niet optimale geheugenfuncties. Tekorten van B12 kan men krijgen na parasitaire infecties, leveraandoeningen, medicijngebruik, narcose, zware metalen belasting (amalgaam, loden leidingen), cytostatica, stress, zwangerschap, grote sportieve inspanningen, maagslijmvliesontsteking en andere (inflammatoire) aandoeningen van het maagdarmkanaal. Ook de leverontgifting (fase II; methylconjugatie) is afhankelijk van B12 voor de detoxificatie van o.a hormonen. Melatonineproduktie voor een goede nachtrust zijn B 12 afhankelijk.

Diesel
''Hij is wijs, die weet, dat hij niets weet''

My weblog tells you more about Vit.B12 deficiency


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