An object of the present invention is to provide dermatological agents such as whitening agents and hair growth accelerators that contain a compound having high water solubility and a specific structure capable of releasing 2,3-dimethoxy-5-methyl-1,4-dihydroxybenzene (reduced form). A dermatological agent according to the present invention contains a 2,3-dimethoxy-5-methyl-1,4-dihydroxybenzenecarboxylic acid ester derivative represented by the following general Formula (I) or a salt thereof:
wherein in the Formula (I), R
1
, R
2
and R
3
are specific groups.
The object of the present invention is to provide a composition which is effective in retarding or preventing the development of energy decrease, appearance change, etc. of humans and animals due to aging, and is highly safe even with a long period of taking.
The present invention relates to an antiaging composition which comprises reduced coenzyme Q as an active ingredient. By feeding mice which develop the aging symptom early (aging-accelerated model mice) with a feed containing reduced coenzyme Q
10
for a long period of time, aging process was prevented and retarded. Furthermore, aging-accelerated model mice fed with reduced coenzyme Q
10
for a long period of time showed no toxic symptom, thus it was found that the antiaging composition comprising a composition containing said substance can be made into a safe antiaging composition capable of being taken for a long period of time.
Mammalian neural plate border stem cells capable of forming neural tube and neural crest cell lineages including central and peripheral neurons
申请人:Max-Planck-Gesellschaft zur Förderung der Wissenschaften E.V.
公开号:US10711244B2
公开(公告)日:2020-07-14
The present invention relates to a method for producing mammalian neural plate border stem cells (NPBSCs), comprising: (a) differentiation of mammalian pluripotent stem cells by (a-i) culturing mammalian pluripotent stem cells in pluripotent stem cell medium for about 24 to about 96 hours, wherein the pluripotent stem cell medium comprises: (i) an inhibitor of the activin/TGF-β signalling pathway; (ii) an inhibitor of the BMP signalling pathway; (iii) an activator of the canonical WNT signalling pathway; and (iv) an activator of the Hedgehog signalling pathway; subsequently (a-ii) culturing the cells obtained in step (a-i) for about 24 to about 96 hours in a neural medium, wherein the neural medium comprises: (i) an inhibitor of the Activin/TGF-β signalling pathway; (ii) an inhibitor of the BMP signalling pathway; (iii) an activator of the canonical WNT signalling pathway; and (iv) an activator of the Hedgehog signalling pathway; subsequently (a-iii) culturing the cells obtained in step (a-ii) for about 24 to about 96 hours in a neural medium, wherein the neural medium comprises: (i) an activator of the canonical WNT signalling pathway; (ii) an activator of the Hedgehog signalling pathway; and (iii) an inhibitor of oxidation; and (b) plating the obtained differentiated mammalian pluripotent stem cells in NPBSCs expansion medium, wherein the NPBSCs expansion medium comprises (i) an activator of the canonical WNT signalling pathway; (ii) an activator of the Hedgehog signalling pathway; and (iii) an inhibitor of oxidation; and expanding the cells in the NPBSCs expansion medium for about 24 to about 96 hours; (c) splitting the cells obtained in (b) and further expanding the cells in the NPBSCs expansion medium; and (d) repeating step (c) at least two times. The present invention further relates to neural plate border stem cells obtainable by the method of the invention and the use of the cells of the invention in medicine.
Methods of treating a neurodegenerative disease in a mammal in need thereof
申请人:Thomas Jefferson University
公开号:US11369596B2
公开(公告)日:2022-06-28
The present invention provides a method of treating or ameliorating a neurodegenerative disease in a mammal, the method comprising administering to the mammal a therapeutically effective amount of a neurodegenerative disease drug, wherein the drug is a substrate of an ABC transporter inhibitor, wherein the mammal is further administered a therapeutically effective amount of an ABC transporter inhibitor, whereby the neurodegenerative disease is treated in the mammal. In certain embodiments, the neurodegenerative disease comprises at least one selected from the group consisting of spinal cord injury, Alzheimer's disease, Parkinson's disease, Huntington's disease, prion disease, amyotrophic lateral sclerosis, a tauopathy, and chronic traumatic encephalopathy.
The present invention relates to a method of producing high-quality reduced coenzyme Q
10
converted from oxidized coenzyme Q
10
by natural reductase. It is stable, completely natural and can be used on injection. This method is suitable for large-scale industrial production without special protective environment/atmosphere. The method of producing reduced coenzyme Q
10
includes three stages: circumflex over (1)} phosphorylation of oxidized coenzyme Q
10
circumflex over (2)} reduction of phosphorylated oxidized coenzyme Q Q
10
by biological reductase circumflex over (3)} extracting reduced coenzyme Q
10
from reductases.