Parishin B
Parishin B has good neuroprotective effects against brain disorders, it can prevent vascular dementia.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Zhongguo Zhong Yao Za Zhi. 2015 Jul;40(13):2668-73.
Study on active ingredient and mechanism in preventing vascular dementia of Tianzhusan coming from Tujia medicine.[Pubmed:
26697697]
METHODS AND RESULTS:
To make clear of the absorbed components of Tianzhusan (TZS) and its possible mechanism in preventing vascular dementia (VD), the rats' models of VD were prepared by a permanent ligation of the bilateral common carotid arteries. After 60 days, rats were administrated with TZS for 0.1 g x kg(-1), and the volume is 0.02 mL x g(-1). After 3 days, the medicated serum was prepared and detected by UPLC, and then we predicted the possible chemical structure of the absorbed components of TZS. According to the absorbed components, the potential targets of TZS were found by ligand profiling of Discovery Studio 3.5. All of these target genes were submitted to DAVID onine for gene set enrichment analysis (GSEA). The 5 absorbed components of TZS have been predicted, and four of them have been identified as Parishin B, parishin C, parishin, pennogenin-3-O-alpha-L-rhamnopyranosy-(1-->2)-beta-D-glucoside. Through reverse finding targets, we got 861 pharmacophore models and 9 pathways from KEGG, BIOCARTA after document verification.
CONCLUSIONS:
These results showed that the efficacy mechanism of TZS on VD perhaps were be related with these absorbed components and pathways. If the traditional herbs could be proved effective by efficacy tests, the serum pharmacochemistry, computer-aided drug design, system biology and other technologies can be used in the next experiments, which will be beneficial to fast discovery of material basis and mechanisms of traditional medicine coming form ethnic minorities.
Chinese Pharmaceutical Journal, 2001 , 53 (2) :63-69.
The contents of parishin, parishin B and parishin C in traditional decoctions and commercial extracts of Gastrodiae Rhizoma[Reference:
WebLink]
METHODS AND RESULTS:
The contents of parishin, Parishin B and parishin C in six traditional decoctions and six commercial extracts of Gastrodiae Rhizoma were analyzed by high performance liquid chromatography. Separation and quantitation were performed on a Cosmosil 5C18-AR column by gradient elution with varied ratios of 0.1 % (v/v) phosphoric acid: methanol as the mobile phase at a flow rate of 1.0 mL/min and detection at 222 nm. Sulfamethoxypyridazine was used as the internal standard. The contents of parishin, Parishin B and parishin C in traditional decoctions of Gastrodiae Rhizoma were 2.7±0.5 mg/g, 2.3 ± 0.2 mg/g and 1.6 ± 0.3 mg/g, whereas commercial extracts contained 6.9± 0.9 mg/g, 2.7± 0.3 mg/g and 1.6± 0.1 mg/g, respectively. Based on our results, the maximum daily doses of parishin, Parishin Band parishin C in traditional decoctions of Gastrodiae Rhizoma were 24.1± 4.5 mg, 20.4± 2.0 mg and 14.4± 2.6 mg compared to 15.6± 1.4 mg, 6.5± 1.1 mg and 4.1± 0.7 mg in commercial extracts, respectively.
CONCLUSIONS:
The daily dose of parishin, Parishin Band parishin C were higher in traditional decoctions than in commercial extracts.
Chinese Journal of Experimental Traditional Medical Formulae, 2016, (18) :5-8.
Comparison on Chemical Constituents and Pharmacological Effect of Gastrodiae Rhizoma Between Traditional Processing and Integration Processing[Reference:
WebLink]
To elucidate the rationality of integration processing technology based on comparison on chemical constituents and pharmacological effect of Gastrodiae Rhizoma between traditional processing and integration processing.
METHODS AND RESULTS:
Taking contents of gastrodin and parishins as indexes,chemical constituents difference in Gastrodiae Rhizoma between traditional processing and integration processing was compared,effects of Gastrodiae Rhizoma on eclampsia model induced by pentylenetetrazole were observed to compare products with different processing technology. Contents of gastrodin,parishin A,Parishin B,parishin C and parishin E in products of integration processing were 0. 79%,2. 04%,0. 91%,0. 23% and0. 57%,they were 0. 39%,1. 12%,0. 64%,0. 15% and 0. 54% in products of traditional processing. The anti-eclampsia effect of Gastrodiae Rhizoma produced with integrated processing technology was better thantraditional processing technology.
CONCLUSIONS:
Compared with the traditional processing technology, the integrated processing technology is better in guaranteeing the quality of pieces,reducing the cost of production and increasing the production efficiency.
