Manünchen Manüchen mein Padawan da bin ich ja mal gespannt:
https://www.testbiotech.org/sites/defau ... s_korr.pdf
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In ihrer Stellungnahme aus dem Jahr 2008 führt die EFSA eine weitere
90-Tage-Studie der Firma Pioneer (MacKenzie et al., 2007) als Nachweis für die
Sicherheit von 1507-Mais an und übernimmt damit die Bewertung von Pioneer.
Dona & Arvanitoyannis (2009), die diesen Versuch analysieren, finden aber
1.
abweichende Werte bei Leberenzymen:
“Alterations have also been observed in hepatic enzymes after consumption
of raw rice expressing GNA lectin (Poulsen et al., 2007), GM Bt with vegeta
-
tive insecticidal protein gene (Peng et al., 2007) and in DuPont’s subchronic
feeding study in rats fed diets containing GM corn 1507 (MacKenzie et al.,
2007). These alterations in hepatocyte cells and enzymes may be indicative
of hepatocellular damage.“
2.
verkleinerte Nieren:
“Smaller kidneys were developed in DuPont’s study in rats fed diets containing GM corn 1507 (MacKenzie et al., 2007).“
3.
eine Abnahme der roten Blutkörperchen und einen verringerten Hämatokritwert:
“DuPont’s study in rats fed diets containing GM corn 1507 showed a decrease in red blood cell count and hematocrit of females (MacKenzie et al.,
2007)“
4.
sowie einen geringeren Anteil bestimmter weißer Blutkörperchen:
„DuPont’s subchronic feeding study in rats fed diets containing GM corn
1507 showed that eosinophils concentration in females was decreased
(MacKenzie et al., 2007).“
Auch die österreichischen Behörden stellen die Interpretation der Daten von
MacKenzie et al. (2007) durch die EFSA in Frage:
“The results showed significantly higher feed consumption in males of the
high-dose group. Furthermore haematology analyses revealed lower mean red
cell count, hemoglobin and number of eosinophils only in females of the high-
dose group. The clinical chemistry evaluation showed a lower level of alkaline
phosphatase in males of the high dose group. Additionally the kidney weight
was lower in these male rats. Mean body weight gain in male and female rats
fed diets containing 33% 1507 was higher on most test days than that of rats
fed the control diet, but mean body weight gains were similar over individual
test day intervals. Such transient effects should not be underrated, since they
do not mean that the test substance is safe in the long run. Aberrant feeding
behaviour only found on a daily or weekly basis thus not presenting a consistent
trend, could be triggered by an aversion to or preference of the new feed
or any numbers of physiological short-term needs of the animals. Short-term
feeding tests with adult animals are not sufficient to prove safety beyond
doubt. Feed effects are more likely to become apparent in times of high perfor-
mance, e.g. reproduction. Therefore more generation tests should be conducted,
especially when transient significant differences are discovered even in a
90day study with rodents.â€
Diese Kommentare lassen gravierende Zweifel an der Lebensmittelsicherheit
von 1507-Mais aufkommen und müssen zu einer Neubewertung der Risiken
führen. Bisher hat die EFSA weder die Studie von Dona & Arvanitoyannis
(2009) noch die Details der Einwände aus Österreich bewertet."