AIM: To explore the anti-low-grade-inflammation mechanisms of Shenqi Compound Recipe(SQCR) in GK rats. METHODS: Specefic pathogen free(SPF) GK rats were divided randomly according to blood glucose level into four groups:Model,Ramipril,SQCR low dosage,SQCR high dosage group and normal Wistar rats(normal control group).GK rats were injected N-?-nitrol-L-arginine methyl ester(L-NAME) intra-peritoneally and took high-fat diet and Wistar rats were injected saline intra-peritoneally and took common diet freely,respectively.In the experiment periods,each group was administrated correspondent substance respectively for 32 days.Serum concentrations of C reactive protein(CRP) and adiponectin were determined by ELISA.Adiponectin mRNA expressions in white adiposed tissue were measured by real time reverse transcriptase PCR. RESULTS:Concentrations of CRP all decreased(P

Objective To set up an experiment model on cellular level in order to investigate the effects of aconitine on Connexin43(Cx43)in cardiomyocytes of rat.Methods The cultured cardiomyocytes of rat were incubated with aconitine at 6 different concentrations of 0.25,0.5,0.75,1.0,1.5 and 2.0 ?mol/L.The changes of Cx43 phosphorylation status of each group were investigated by Western blot analysis and immunofluorescent microscopy techniques.Results The total amount of Cx43 had not changed in cardiomyocytes after aconitine incubation by western blot analysis,but it began to induce Cx43 dephosphorylation after incubation of the cultures with 0.5 ?mol/L aconitine and Cx43 underwent significant dephosphorylation when the concentration of aconitine elevated to 1.0 ?mol/L,and the dephosphorylation effects of 1.5 and 2.0 ?mol/L aconitine on Cx43 were similar to that of 1.0 ?mol/L aconitine.Quantitative immunofluorescent microscopy revealed that Ser368,one of the serine amino acid phosphorylation sites in the C-terminal domain of Cx43,underwent significant dephosphorylation when incubation of the cardiomyocytes with 1.0 ?mol/L aconitine.Conclusion Under certain concentration conditions,aconitine can induce significant dephosphorylation of Cx43 in the cardiomyocytes of rat.

Objective The time-dependent changes of COX-1 and COX-2 following the experimental brain contusion were studied for the purpose of extrapolation of the molecular mechanism and timing of brain contusion.Methods Male SD rats were divided into normal control,sham-operated control and contusion groups.The animal model of cerebral contusion was established by impact to the parietal lobe with a free fall weight.The time-dependent changes of COX-1 and COX-2 were detected at 1d,3d,5d,7d,14d post-injury by immunohistochemical SP method.Results In comparison with the control,COX-1 and COX-2 were faintly expressed in the brain of the control groups.Expression of COX-1 was gradually elevated in the cortex of the brain from 1d to 5d after contusion,which was sustained at a high level up to 14d postinjury.Expression of COX-2 was gradually increased in the cortex of the brain from 1d to 3d after injury,which peaked in the hippocampus at 1d after contusion.Conclusion It is suggested that brain contusion may induce the expressions of the COX-1 and COX-2,and the time-dependent changes of COX-1 and COX-2 may be applicable to the wound age estimation of cerebral contusion in forensic practice.

Objective To evaluate the value of early preventive tracheal intubation in the early first‐aid of serious severe trau‐ma and improve the early first‐aid ability of serious severe trauma .Methods Using retrospective study ,among 258 patients of acute airway obstruction caused by severe trauma ,those who have reached the standard of obstruction and respiratory failure according to observation were as the contrast group (n=84) ,and those who had the tendency of airway obstruction instant treatment of preven‐tive trachea intubation were as early preventive tracheal intubation group (n=174) .The average in hospital days ,the occurrence rate of multiple organ failure and death rate were contrasted .Results In the early preventive tracheal intubation group ,in hospital days were 17 .2 on average ,the occurrence rate of multiple organ failure was 44 .59% and the death rate was 10 .67% .In the con‐trast group ,it was 27 .9 d ,67 .51% and 33 .75% ,the two groups had shown significant difference(P<0 .05) .Conclusion Early tra‐chea intubation have a good trachea management of serious severe traumas ,improve inspiration ,shorten the hospitalization days ,and reduce the occurrence rate of complication .It is important to improving rescuing rate .

Aconltium plants are a group of important poisonous plants in the Ranunculaeeae family of Angiosperm subphylum.and one of the earliest recorded poisonous plants in China as well.In their tubers(root)have hypertoxic Aconitium alkaloids,which belong to the group of diesterditerpene alkaloids.It is repeatedly reported in China that aconitine poisoning,and even death from aconitine poisoning,caused by the individual differences in pharmaceutical tolerance of aconitine,taking the wrong medicine or inadequate dosage,or put in the poison by homicide.At present,the research on aconitine is mainly limited to clinical treatment,but lack of research on toxicity mechanism of aeonitine.This paper reviews some progress relating to the toxicological mechanisms of this kind of alkaloid.

Objective Analyzing the regional distribution discrepancy of medical and health resources in China,with the purpose of providing the government with policy making evidences for optimizing medical and health resource allocation.Results Dividing China into three regions based on regional economic development and geographic setting,and selecting 6 indicators for medical and health resources.On the basis of the statistics of 31 provinces released by the state in 2009,analyzing the interprovincial disparities of the distribution of these six resources,by means of the coefficient of variation,Gini coefficient and Theil index.Methods The largest inter-regional allocation disparity is found in the number of biopharmaceutical manufacturing companies per ten thousand population.And the smallest discrepancy is found in the number of hospital beds among these regions.The top two extreme differences of resource possession per ten thousand population between the maximum and the minmum region are the number of biopharmaceutical manufacturing companies and tertiary hospitals.The eastern region is the largest contributor to the discrepancy of allocation for the six resources within and between regions.The less developed regions contribute the most inter-regional discrepancy for the allocation of medical practitioners(their assistants included),hospital beds,tertiary hospitals and pharmaceutical companies.And the developed regions contribute the most inter-regional discrepancy of medical finance support from local governments and the most of the allocation of biopharmaceutical manufacturing companies.In general,regions of higher development enjoy greater possession of the SIX resources per population in such regions. But these two are not always in direct proportion. Condnsion Regional distribution disparity of the six resources is not yetreasonable in China.To better meet the health needs of the population in various regions,the government is expected to increase its financial support for building biopharmaceutical manufacturing companies and tertiary hospitals in the less developed western regions,to better use resources of developed regions,and to keep off investments at low level and repetition.The government is also recommended to pay attention to the proportion of government health finance output and the quality and quantity of medical practitioners.

Objective: To study the function of Leshibao Capsule (Radix Ginseng, Rhizoma Atractylodis, Sea cucumber, etc.) on stomach and intestines. Methods: Gastrointestinal function was measured by small intestine driving test, gastric juice quantity, pepsin activity and gastric emptying time. Results: Leshibao Capsule could increase gastric juice, enhance pepsin activity. It could adjust function of gastrointestine in two ways that showed gastrointestinal movement fasted by neostigmine and inhibited gastrointestinal movement slowed by diphenoxylate and morphine hydrochloride. Conclusion: Leshibao Capsule can adjust gastrointestinal function and facilitate digestive function.

In order to investigate the effects of aconitine on [Ca2+] oscillation patterns in cultured myocytes of neonatal rats, fluorescent Ca2+ indicator Fluo-4 NW and laser scanning confocal microscope (LSCM) were used to detect the real-time changes of [Ca2+] oscillation patterns in the cultured myocytes before and after aconitine (1.0 micromol/L) incubation or antiarrhythmic peptide (AAP) and aconitine co-incubation. The results showed under control conditions, [Ca2+] oscillations were irregular but relatively stable, occasionally accompanied by small calcium sparks. After incubation of the cultures with aconitine, high frequency [Ca2+] oscillations emerged in both nuclear and cytoplasmic regions, whereas typical calcium sparks disappeared and the average [Ca2+] in the cytoplasm of the cardiomyocyte did not change significantly. In AAP-treated cultures, intracellular [Ca2+] oscillation also changed, with periodic frequency, increased amplitudes and prolonged duration of calcium sparks. These patterns were not altered significantly by subsequent aconitine incubation. The basal value of [Ca2+] in nuclear region was higher than that in the cytoplasmic region. In the presence or absence of drugs, the [Ca2+] oscillated synchronously in both the nuclear and cytoplasmic regions of the same cardiomyocyte. It was concluded that although oscillating strenuously at high frequency, the average [Ca2+] in the cytoplasm of cardiomyocyte did not change significantly after aconitine incubation, compared to the controls. The observations indicate that aconitine induces the changes in [Ca2+] oscillation frequency other than the Ca2+ overload.
Aconitine/*pharmacology ; Animals, Newborn ; Calcium Signaling/*drug effects ; Cells, Cultured ; Myocytes, Cardiac/cytology ; Myocytes, Cardiac/*metabolism ; Rats, Sprague-Dawley

Objective To study the mechanism of traditional Chinese medicine Compound Xueniaoting (CXNT) in treating glomerulus diseases with the main pathological changes of proliferation in mesangial cells. Methods CXNT and rat liver microsomes were incubated together, and then the incubated CXNT was added into cultured glomerular mesangial cells (GMC) in vitro. The proliferation of GMC was observed by MTT assay, the levels of interleukin-6 (IL-6) and endothelin-1 (ET-1) were determined by radioimmunoassay, and content of lactic dehydrogenase (LDH) was determined by velocity assay. ResultsCXNT (2, 4, 8 mg/mL) metobolized by rat liver microsomes could all inhibite the proliferation of GMC and production of IL-6 and ET-1 in a dose-dependent manner. Conclusion CXNT can inhibite the proliferation of GMC and restrain the secretion of IL-6 and ET-1, this function may be one of CXNT mechanisms in treating some mesangial proliferative glomerulonephritis.

Objective To establish an efficient, simple, low cytotoxicity and cheap transfaction system. Methods We have used the cationic polymer polyethylenimine(PEI) to study transient transfection in MCF-7 cells by testing different conditions, including cell concentrations, DNA concentrations, the ratio of PEI nitrogen to DNA phosphate(PEI-N∶DNA-P) and the time of cells grown in serum-free culture together with PEI-DNA complex. Results The optimized cell concentrations were 2?10 5 cells seeded per well in 24-well dishes 18-24?h before transfection. The DNA concentrations and ratio of PEI-N∶DNA-P are very important for optimal transfection and they affect each other. For 1??g DNA per well, the optimal PEI-N∶DNA-P is about 33∶1, however, as for 4??g DNA, it is 9∶1. The best time of cells grown in serum-free culture together with PEI-DNA complex is about 5-7?h.Conclusion With optimized conditions, we can establish an efficient, simple, low cytotoxicity and cheap transfection system by using PEI.