Novel conjugated microporous polymers for efficient tetracycline adsorption: insights from theoretical investigations.

This paper presents a detailed theoretical understanding of the noncovalent interactions between antibiotics tetracycline and conjugated microporous polymer (CMP), which is important to understand the recent experimental finding of efficient removal of antibiotics by CMP materials. We show that the co-work of π-π and H-π interactions determines the final equilibrium structures, when a tetracycline molecule spontaneously adsorbs to the surface or within the pores of the CMP network at physisorption distances. The binding energies for tetracycline/CMP systems are calculated to be -0.

[The effect of heat stress on the cytoskeleton and cell cycle of human umbilical vein endothelial cell in vitro].

Objective: To study the effect of heat stress on the cytoskeleton and cell cycle of human umbilical vein endothelial cell ( HUVEC ) in vitro.

Methods: HUVEC was cultured in vitro in 5%CO(2) medium at 37 centigrade ( control group ) or 43 centigrade ( heat stress group ) for 1 hour. Coomassie brilliant blue R-250 staining was used to determine the effect of heat stress on the cytoskeleton.

[Chaotic dynamic process of multiple organs dysfunction syndrome and the regulatory function of shenqin liquid on it].

Objective: To explore the chaotic dynamic process of multiple organs dysfunction syndrome (MODS) and the regulatory effect of Shenqin Liquid (SQL), a Chinese herbal liquid preparation with the action of purging and qi-tonifying.

Methods: Eighty SD rats were divided into 4 groups, and were given suspension of zymosan A and paraffine (1 mL/kg) by peritoneal injection except for those in the blank control group to set up the multiple organs dysfunction syndrome (MODS) model. Low and high doses SQL were administered twice at the doses of 30 and 60 g/kg of SQL respectively at an interval of 8 h per day before modeling.

Clinical observation on effect of Kaixin capsule in treating 40 patients with diabetic myocardial ischemia.

Objective: To observe the effect of Kaixin Capsule (KXC) on myocardial ischemia and plasma endothelin (ET) level in patients with diabetic heart disease (DHD).

Methods: The 72 subjects for observation were randomly selected from inpatients whose diagnosis fit to the standard of DHD. The 32 patients allocated in the control group were treated with conventional Western medicine, and the 40 patients in the treated group were treated with conventional Western medicine in combination with KXC, with the therapeutic course for both groups as 60 days.

[The protective effect of high density lipoprotein on the cardiac function of rats with severe burns].

Objective: To investigate the protective effect of high density lipoprotein on the cardiac function of rats with severe burns.

Methods: One hundred and thirty-five Wistar rats were employed in the study and were randomly divided into control (n = 15, without treatment), burn (n = 60, with 30% TBSA full-thickness burn on the back) and experimental (n = 60, with the injection of HDL (80 mg/kg) via the caudal vein immediately after burns) groups. The rats in the groups with burn injury were resuscitated with intraperitoneal isotonic saline (50 ml/kg) 30 minutes after burn (PBM).