What is Zeatin

Product Name: Zeatin
CAS: 13114-27-7
Molecular formula: C10H13N5O1
Molecular Weight: 219.24
Description:
Zeatin is a plant hormone of purine adenine. It is a member of the family of plant growth hormones known as cytokinins. Zeatin was found in immature maize grains of the genus Zea. It has been found that zeatin and its derivatives have been the main active ingredient in coconut milk, which has been known for a long time to actively induce plant growth.
As in the case of Kinetin has also been reported that Zeatin effects in vitro on human skin including a plurality of anti-aging fibroblasts.

Cinnamylic acid sodium salt

Name: Cinnamylic acid sodium salt

Catalog No: 3B3-004210

CAS No: 538-42-1

Molecular Formula: C9H7O2Na

Molecular Weight: 170.14

Description:
Purity: 98.0%

Pentamidine price

Product: pentamidine

Molecular formula: C19H24N4O2

Specifications: BR

Product Description:
Pentamidine is an antimicrobial drug for the prevention and treatment of Pneumocystis pneumonia caused by Pneumocystis jirovecii, a typical interstitial type of severe pneumonia often found in HIV-infected patients. The drug is also the basis for the treatment of stage I infection with Trypanosoma brucei gambiense.

Mac-Conkey agar for sale

Product Name: MacConkey Agar

Packaging (g / bottle): 250

Product Description:
MacConkey Agar is a culture medium that has been developed to grow Gram-negative bacteria and to stain during lactose fermentation.
It contains bile salts, violet crystal dye, neutral red dye, lactose and peptone.
MacConkey agar is a unique bacterial growth medium that is selective for Gram bacteria and distinguishes bacteria that can ferment lactose.

SHG-44 glioma cell-line

GOAL:
To study the effect of tamoxifen on voltage-sensitive sodium channels in SHG-44 glioma cells.
METHODS:
To record the Na currents in the SHG-44 cell line, a whole patch clamp of the cell was used and studied the effect of tamoxifen with different concentrations on this channel flow.
RESULTS:
This channel has been activated and deactivated quickly. Tamoxifen was able to greatly reduce the amplitude of the Na currents of the SHG-44 cell line. This block effect is dose-dependent and voltage dependent. When the holding potential was 0 mV, 8 micromoles / L tamoxifen was 69% block these fluxes. The half inhibitory concentration (IC 50) is 5.54 micromoles / liter.
CONCLUSION:
Tamoxifen could significantly block the voltage-dependent sodium channel in the SHG-44e malignant glioma cell line. It could be one of the mechanisms that inhibit tamoxifen glioma proliferation. Clamp technique was used to record Na currents in SHG-44 cell line and study the effect of tamoxifen with different concentrations on this channel flow.
RESULTS:
This channel has been activated and deactivated quickly. Tamoxifen was able to greatly reduce the amplitude of the Na currents of the SHG-44 cell line. This block effect is dose-dependent and voltage dependent. When the holding potential was 0 mV, 8 micromoles / L tamoxifen was 69% block these fluxes. The half inhibitory concentration (IC 50) is 5.54 micromoles / liter.
CONCLUSION:
Tamoxifen could significantly block the voltage-dependent sodium channel in the SHG-44e malignant glioma cell line. It could be one of the mechanisms that inhibit tamoxifen glioma proliferation.

Hugh-Leifson Medium

For the first time the method of (1 hour) rapid screening was developed by groups of Gram-negative bacteria through the OF test with glucose using mikrovolumetrischen techniques. The method is based on the use of hydrogen peroxide at a non-bactericidal concentration as a constituent of a liquid medium containing a buffer and a glucose indicator and is provided for the oxidation of glucose. Introduced for the investigation of the bacterial environment catalase ensures rapid saturation of the medium with oxygen and the completion of glucose oxidation in 10-60 minutes. A similar period is necessary in order to obtain a complete fermentation of the glucose in the same medium without hydrogen peroxide. It has been demonstrated that significant results have been obtained in the joint study of the OF-tests on the 502 strains belonging to the 21 genera and the bacteria which ferment Gram-negative nichtfermentierender, according to the process of hydrogen peroxide and the medium of Hugh-Leifson.

L-Arginine L-Aspartate

1. Some of the effects of ouabain on the absorption of 14C labeled amino acids and 32P labeled orthophosphate in squid axons have been studied. 2. ouabain in artificial seawater reduced intake of glycine, L-alanine, L-arginine, L-aspartate and L-glutamate. After a period of 3 hours in the inhibition of ouabain and glycine L-glutamate absorption was marked. 3. After 3 hours in the axoplasmic ouabain Na concentration had increased by only about 14% and the K concentration decreased only by about 9%. It is therefore unlikely that changes in Na and K gradient across the membrane due to ouabain are the reason for inhibition of amino acid uptake. This was confirmed when the axons to carry out pulses at 200 / sec for 40 minutes were made. There was no subsequent inhibition of glycine and L-glutamate absorption, although the axoplasmic Na increased by about 42% and K decreased by about 37%. 4. A detailed examination of the time course of inhibition of amino acid uptake by ouabain, were used in the intracellular Szintillatortechniken showed that there was no inhibition for 30-100 Min, then it was before fairly quickly. This operation was not affected by the cycloheximide protein synthesis inhibitor. It is unlikely that the inhibition of the orthophosphate receiving a similar delay is subjected, as has reached a maximum after 40 min. 5. It was concluded that the inhibitory effects of ouabain on amino acid uptake in squid axons are not due to effects on the sodium and potassium gradients caused by inhibition of the Na-K pump . The retardation of inhibition may reflect the operation of an intracellular regulation mechanism, which is triggered when ouabain inhibits the pump, but the time required for operation. If the formation of a second inhibitory messenger molecule is involved, it is unlikely that it is a protein.