The antidiabetic activity of an extract from the leaves of Lagerstroemia speciosa standardized to 1% corosolic acid (Glucosol) has been demonstrated in a randomized clinical trial involving Type II diabetics. Subjects received a daily oral dose of Glucosol and blood glucose levels were measured. Glucosol at daily dosages of 32 and 48mg for 2 weeks showed a significant reduction in the blood glucose levels. Glucosol in a soft gel capsule formulation showed a 30% decrease in blood glucose levels compared to a 20% drop seen with dry-powder filled hard gelatin capsule formulation suggesting that the soft gel formulation has a better bioavailability than a dry-powder formulation.
Corosolic acid isolated from the fruit of Crataegus pinnatifida var. psilosa is a protein kinase C inhibitor as well as a cytotoxic agent.
Planta Med. 1998 Jun;64(5):468-70.
Corosolic acid isolated from the fruit of Cratoegus pinnatifida var. psilosa was tested for anticancer activity. Corosolic acid displayed about the same potent cytotoxic activity as ursolic acid against several human cancer cell lines. In addition, the compound displayed antagonistic activity against the phorbol ester-induced morphological modification of K-562 leukemic cells, indicating the suppression of protein kinase C (PKC) activity by the cytotoxic compound. Corosolic acid showed PKC inhibition with dose-dependent pattern in an in vitro PKC assay.
See now that makes more sense. 48mg of 1%. You made it seem like 48mg of pure 100%, thats why i said it was way too high
The first abstract referenced
blood glucose levels and did not delineate PPAR-Gamma mRNA expression, did not delineate the translocation of GLUT4, and, if you bothered to read the full study, said this:
Acute and chronic clinical studies of Corosolic acid (Glucosol™) formulations in normal subjects at daily dose of 48 mg Glucosol™ indicate that their blood sugar levels remain in the normal range (75 to 110 mg/dL) before, during and after the intake of Glucosol™
.48mg of Corsolic Acid, therefore, exerted no effect on normal subject's fasting glucose (which isn't what we are after, anyway). As I said (is there an echo in here?),
at least 30 mg of pure Corosolic Acid is needed to see results in vivo. Further, NIDDM is a disease not necessarily characterized by inefficient glucose metabolism, but of energy turnover ratios as a whole - this is why Lagerstroemia is so effective in this particular respect, as it creates positive energy turnover ratios via the activation of AMPk, deregulation of PPAR and so on.
You seem to be fixated on blood glucose levels, which are irrelevant in our weigh lifting respect - but, why? Because adipocytes are regulated via the same insulin-reactive pathways as myocytes; meaning that glucose metabolism may be through lipid uptake as well. You need to concern yourself with BE's ability to inhibit adipocyte differentiation by regulating genes responsible for energy expenditure (as I have mentioned multiple times). This affinity for energy regulation - differentiated in myo- versus adipocytes - separates P-Slin and Anabolic Pump from ALA/Cinnulin in that particular respect. Those products solely mitigate Insulin-
Dependent pathways, whereas Anabolic Pump and P-Slin circumvent insulin, and directly regulate energy use at the genetic level. Therefore, 'lowered blood glucose' may be through GLUT4 regulation in adipocytes as well. This is not necessarily specific to this conversation, but merely attempting to assist you as a whole - you are inquisitive, which is positive, but extremely misinformed and misguided.