Tuesday, March 12, 2013

Ideas, Formulas And also Shortcuts Needed for cdk1 inhibitor Cell Cycle inhibitor

Ethyl acetate was obtained from Sinopharm Chemical Reagent Co., Ltd.. Acetonitrile was obtained from Merck. Forty eight male Sprague Dawley rats weighing 220 20 g were offered by the Experimental Animal Center of Shandong Engineering Exploration Center for Organic Drugs, certicate quantity 20030020.

The rats were kept with free accessibility to meals and water on a 12 h light/dark cdk1 inhibitor cycle. They were housed in plastic cages and randomly divided into two groups with 24 animals in each group: the control group and the verapamil group. The rats in the verapamil group were administered intraperitoneally with verapamil at a dose of 20 mg kg1. The rats in the control group were treated with the same volume of normal saline. Ninety minutes later, all rats were treated intravenously with Danshensu by tail vein. At 15 min, 30 min, and 60 min after Danshensu treatment, the animals were anesthetized with chloral hydrate and then 5 mL heparinized blood were collected from abdominal aorta and the rats were perfused with 100 mL of ice cold normal saline each.

The mobile phase was acetonitrilewater. The pump was operated NSCLC at a ow rate of 0. 2 mL min1. Separations were performed at the temperature of 20 C. Mass spectrometric detection was performed using a TSQ Quantum tandem mass spectrometer equipped with an electrospray ionization source. Quantication was performed using selected reaction monitoring of the transitions of m/z 197. 0 m/z 135. 1 for Danshensu and m/z 229. 0 m/z 170. 1 for the naproxen. The mass spectrum conditions were optimized as follows: spray voltage, 3000 V, sheath gas pressure, 30 psi, auxiliary gas pressure, 5 arbitrary unit, capillary temperature, 350 C, collision induced dissociation voltage, 18 V, argon gas pressure, 1. 5 millitorr. Data acquisition was performed with Xcalibur software.

Concentrations in Brain. At 15 min, 30 min, and 60 min after Cell Cycle inhibitor Danshensu treatment, Danshensu concentrations in the brain of the verapamil group were signicantly higher than that of the control group.

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