Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: EC:3.4.23.17 (PCE)
 1,301 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The aim of the present study was to investigate whether ethanol extracts of Psoralea corylifolia L. (PCE) and its active component protect against bone loss in ovariectomised rats. We screened oestrogenic activities of the main extract fractions using in vitro assays and identified bakuchiol as the most active oestrogenic component by HPLC and LC/MS, and then demonstrated that bakuchiol had strong binding affinity for oestrogen receptor (ER) alpha. Seventy female Sprague-Dawley rats were assigned to either a sham-operated group (n 10) or an ovariectomised group (n 60). The ovariectomised group was subdivided into six groups, each containing ten rats: vehicle group, two bakuchiol-treated groups (dose of 15 mg/kg per d or 30 mg/kg per d; ten rats for each group), two PCE-supplemented groups (0.25 % or 0.5 % extracts of diets; ten rats for each group) and a 17beta-oestradiol (E2)-treated group (20 microg/kg per d). We recorded weight and feed intake every week, and killed all animals after 6 weeks. Blood was collected, and the uterus, kidneys and livers were removed. Bakuchiol has a three-fold higher binding affinity for ERalpha than for ERbeta. Bakuchiol and PCE treatments had no uterotrophic activity even though they demonstrated oestrogenic activity in the in vitro assays. Bakuchiol and PCE treatments reduced postmenopausal bone loss by increasing alkaline phosphatase, Ca concentrations, serum E2 concentration and bone mineral density, and by decreasing the inorganic P level. The present study indicated that bakuchiol and PCE treatments could protect against bone loss.
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PMID:Ethanol extract of Psoralea corylifolia L. and its main constituent, bakuchiol, reduce bone loss in ovariectomised Sprague-Dawley rats. 1880 Dec 7

This study investigates the hepatoprotective effect of a water-alcohol extract of the medicinal mushroom Phellinus caryophylli (Racib.) G. Cunn. (PCE) against acetaminophen (APAP)-induced hepatotoxicity in Swiss albino mice. The mice orally received APAP (150 mg/kg body weight), followed by PCE extract (250 or 500 mg/kg body weight). The liver damage induced by APAP was analyzed on the basis of blood serum parameters (glutamate pyruvate transaminase, glutamate oxaloacetate transaminase, and alkaline phosphatase), antioxidant assays (reduced glutathione and glutathione peroxidase), and tissue peroxidation based on malondialdehyde level. The molecular mechanism underlying the prevention of APAP-induced damage by PCE was also analyzed. Liver damage was confirmed on the basis of increased serum parameter values, decreased antioxidant levels, and cellular and molecular alterations, which PCE restored in a dose-dependent manner. At a transcriptional level, PCE downregulated expression of the preapoptototic gene Bax and the inflammatory gene Cox2 but upregulated the antiapoptotic gene Bcl2 in the mice that received APAP. PCE exerted a hepatoprotective effect by preventing apoptotic and inflammatory events caused by APAP. Thus, this study demonstrates a hepatoprotective effect of PCE, which could be explored further for managing hepatopathy.
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PMID:Mitigating Acetaminophen-Induced Hepatotoxicity by Using a Water-Alcohol Extract of Phellinus caryophylli (Agaricomycetes) in a Murine Model. 3100 32