Objective To study the expression of HDAC2 in lung of smoke cessation and smoking cessation rats,Methods Forty SD rats were divided into five groups randomly:normal control group (group A),1-month smoking group (group B,),2-month smoking group (group C),1-month smokingcessation group(group D),2-month smoking-cessation group(group E).Group B rats were exposured to cigarettes for 1 month,C,D,E were exposured to cigarettes for 2 months.At 1 month,group B were sacrificed,at 2 month,group C were sacrificed,group D was smoking cessation for 1 month and group E for 2 months.Pathomorphological changes of the small airway were analyzed,and then study the HDAC2 in rats'lung tissue.Results Compared with group A,the levels of HDAC2 in group B,group C,group D,group E were decreased (P ＜ 0.01),but smoking groups levels were lower than smoking-cessation groups.In smoking groups,group C was lower than group B.In smoking-cessation groups,group D was lower than group E.Conclusion It shows that the levels of HDAC2 in rats' lung tissue decrease after smoking exposure.It can recrease after quitting,but still cant back to normal.

Objective:To study the anti-proliferation effects of thiazolidinedione compounds-troglitazone, which is a high affinity ligand of PPAR-? , on rat pituitary adenoma GH3 cell line and explore the related mechanisms.Methods: GH3 cells were separately treated with troglitazone (10-7,10-6 and 10-5 mol/L), dimethyl sulfoxide (DMSO) (DMSO control group) and phenol red- and serum-free F-12 medium (blank group). MTT was used to examine the cell growth in each group and FACS was used to detect the distribution of cell cycle. Semi-quantitative RT-PCR method was utilized to determine the expression of CyclinD1 mRNA. ANOVA was used for statistical analysis.Results:The 72 h treatment with troglitazone inhibited GH3 cell proliferation in a dose-Dependent manner. The treatment also induced cell cycle arrest in G1/S phase and significantly decreased the expression of CyclinD1 mRNA as compared to the other 2 groups (P

The tuberous sclerosis complex (TSC) in children is also named Bourneville disease,the 3 main symptoms namely epilepsy,mental retardation and facial angiofibromas.It is an autosomal dominant disease.It is an important cause of epilepsy,skin disease,and renal and pulmonary disease in children and adults.The appropriate therapy and prognosis for TSC patients are often different than that for individuals with epilepsy,renal tumors,or interstitial lung disease from other causes.In recent years,certain progress has been made in management of tuberous sclerosis,inhibitors of the mammalian target of rapamycin (mTOR) have demonstrated regression of astrocytomas,angiofibromas,and angiomyoliomas,as well as improved pulmonary function in persons with TSC.This article reviews the current therapeutic recommendations for medical and surgical management of neurologic,renal,and pulmonary manifestations of TSC.

Objective: To investigate the diagnostic value and clinical significance of trans-splenic portal scintigraphy in cirrhotic portal hypertension and compensatory circulation. Methods: Transsplenic portal scintigraphy, ultrasound, and gastroscopy were performed on 50 patients with cirrhotic portal hypertension and on 10 controls. According to the Child-Pugh classification, 15 patients with cirrhosis were Child A, 19 cases were Child B, and 16 cases were Child C. Results: In the control group, the splenoportal vein was shaped like the letter S, and the portosystemic shunt index was 0.19?0.07. Portal hypertension portosystemic shunts were of 3 types: intrahepatic (13 patients; index, 0.52?0.19), compensatory(31 patients; index, 0.64?0.28)and completely extrahepatic (6 patients; index, 0.91?0.03). Collateral vessels were uphill, downhill, or complex. The portosystemic shunt index increased as cirrhosis and esophageal varices increased. There was statistical significance among groups(P

BACKGROUND:Mechanical, inflammatory, and biochemical factors, particularly matrix metaloproteinases and reactive oxygen lead to chondrocyte degeneration in osteoarthritis. Curcumin has been shown to be a potent antioxidant; however, its protective effects against chondrocyte degeneration in osteoarthritis remain unclear.
OBJECTIVE:To investigate the potential molecular mechanisms underlying the protective effects of curcumin on articular cartilage of osteoarthritis in rats.
METHODS:A total of 30 Sprague-Dawley rats were used and randomly divided into model group (positive control,n=15) and normal group (negative control,n=15). Rat models of traumatic osteoarthritis were established, and then cartilage cels were isolated from articular cartilage and culturedin vitro. Chondrocytes were treated with curcumin (curcumin group) or PDTC (an inhibitor of nuclear factor-kappa B) for 24 hours. The expression level of nuclear factor-kappa B P65 in nucleus and cytoplasm in chondrocytes were determined by western blot assay and immunofluorescence. Moreover, mRNA expressions of type II colagen, matrix metaloproteinase-1 and -13 were analyzed using RT-qPCR.
RESULTS AND CONCLUSION: Nuclear factor-kappa B P65 protein was mainly expressed in nucleus, but few in cytoplasm in positive control group; the reversed results were found in the curcumin group. Nuclear translocation of nuclear factor-kappa B P65 was observed mainly in nucleus in the positive control group; however, that was observed mainly in cytoplasm in the negative control, curcumin, and PDTC groups. Matrix metaloproteinase-1 and -13 mRNA expressions were significantly decreased, while type II colagen mRNA expression was significantly increased in the curcumin group compared with the positive control group. These findings indicated that curcumin protect chondrocytes against degeneration through inhibiting the activation of nuclear factor-kappa B signaling pathway, suppressing nuclear translocation of nuclear factor-kappa B P65 and inhibiting the expressions of matrix metaloproteinase-1 and -13, which are responsible for upregulation of type II colagen expression.

With the wide application of percutaneous coronary intervention (PCI) in patients with coronary heart disease (CHD), it is a popularly concerned problem within clinical doctors to promote the patients' early recovery and improve their health related quality of life (HR-QoL).

BACKGROUND:Intra-articular injection of sodium hyaluronate or dexamethasone can relieve pain and increase range of motion after traumatic arthritis. OBJECTIVE:To observe the effect of dexamethasone combined with sodium hyaluronate on traumatic arthritis of rat knees. METHODS:Forty-eight Sprague-Dawley rats were randomly divided into four groups. The anterior ligament of the left knee was resected and the medial meniscus was removed to establish models of traumatic arthritis in al the rats. After 3 weeks, the four groups were respectively injected dexamethasone+sodium hyaluronate (combined group), dexamethasone, sodium hyaluronate, and nothing (control group). After 4, 8, 12 weeks of injection, the samples were obtained for gross observation, anteroposterior and lateral X-ray films and hematoxylin-eosin staining. RESULTS AND CONCLUSION:At 12 weeks after injection, X-ray films showed that there was no stenosis in the combined group, mild stenosis in the dexamethasone and sodium hyaluronate groups, and obvious stenosis in the control group (indicating severe osteoarthritis);hematoxylin-eosin staining exhibited the fibrous cartilage-like tissue grew wel in the combined group, varying degrees of proliferation of fibrous cartilage-like cells were visible in the dexamethasone and sodium hyaluronate groups, and there was a smal amount of fibrosis in the control group. These findings suggest that the combination of dexamethasone and sodium hyaluronate can improve the cartilage repair and restore the joint function.

Objectives To summarize the clinical characteristics of imported falciparum malaria patients and the treatment so as to provide the evidences for improving the diagnosis and treatment of the disease. Methods A total of 138 imported falci?parum malaria patients who received the treatment in Shandong Institute of Parasitic Diseases from January 2007 to February 2013 were adopted as the observation subjects and their clinical data were collected and analyzed. Results All the 138 pa?tients were back from African countries. The main manifestations were fever headache asthenia and hepatosplenomegaly and most of them were with decreased RBC PLT levels and increased LDH levels and 36.96%of them were misdiagnosed as respiratory diseases nephritis hepatitis and so on. Through antimalarial treatment of artemether or artesunate or dihydroartemis?inin and primaquine or dihydroartemisinin and piperaquine and symptomatic treatment the short?term and long?term cure rates were 98.55%and 94.93%respectively with 1 case unrecovered and 1 died. Conclusions Artemisinins are still the most effective antimalarial drugs for falciparum malaria. However some patients recrudesce as the Plasmodium in their body is resis?tant or insensitive to these drugs. We should pay more attention to the antimalarial and symptomatic treatments in the early stage of severe malaria so as to improve the cure rate.

This study was aimed to establish a separation method for neochlorogenic acid reference substances from Lonicera japonica. Refined neochlorogenic acid inL. japonica water extract was separated and concentrated by HPD200A macroporous resin, which was isolated and purified by medium-low-pressure preparative chromatography and determined by HPLC. The structure was identified by various spectroscopic data including ESI-MS,1H-NMR and13C-NMR. The results showed that the optimal purification technology conditions were as follows: washed with 5BV of water, collected elution, concentration, drying; neochlorogenic acid crude products were eluted with acetonitrile-0.5% formic acid solution (10:90) with the flow rate of 20 mL·min-1; and the detection wavelength was 326 nm. The contents of the prepared neochlorogenic acid reached to 98.86% and the yield was 89.1%. It was concluded that the method was effective for the preparation of neochlorogenic acid with high purity. It can be used to prepare the reference substances for quantitative analysis and content determination of Chinese materia medica.

Objective To investigate the related factors of percutaneous balloon compression (PBC) for the treatment of trigeminal neuralgia complicating cerebrovascular disease in order to reduce the incidence of surgical complications. Methods The clinical data in patients with trigeminal neuralgia complicating cerebrovascular disease treated with PBC in the People's Hospital of Liaoning Province from December 2000 to December 2010 were analyzed retrospectively. The reasons for its occurrence were investigated. Results Of the 6 759 patients with trigeminal neuralgia who received PBC treatment, 10 (0. 15％ ) developed cerebrovascular disease,and 2 of them had arteriovenous fistula; 5 patients developed intracranial hemorrhage: 2 acute subdural hemorrhage, 2 intraventricular hemorrhage with subarachnoid hemorrhage, and 1 small amount of bleeding in brain stem; 1 patient developed internal carotid hemorrhage during the intraoperative puncture and the operation was stopped temporarily, and he was reoperated successfully after 2 weeks; 2 patients had cerebral infarction, they were all in the risk population of cerebrovascular disease, and 3 weeks after treatment, their disease conditions were improved. One of them left severe paralysis of limbs at discharge. Condusions The treatment of trigeminal neuralgia with PBC is safe and the incidence of cerebrovascular complications is lower. The surgical operations and blood pressure changes are the important causes of cerebrovascular complications.