Objective:To evaluate the accuracy of the application of color Doppler sonography (CDS) and computer tomography angiography (CTA) in preoperative perforator identification and flap design and provide theoretical support for the restoration of oral maxillofacial defect with free superficial circumflex iliac artery perforator flap (SCIAPF). Methods: (1) Preoperative CDS and CTA techniques were performed to map the SCIA perforators of 29 adult patients diagnosed with malignant tumor in the oral maxillofacial head and neck regions. These patients were scheduled for concurrent reconstruction surgery. (2) A diagnostic test was designed to com-pare the CDS and CTA techniques. Results:(1) A total of 18 patients underwent flap preparation. SCIA was not found in one of the pa-tients during surgery, but was observed intra-operatively in the other 17 patients. The average SCIA diameter was 0.69 ± 0.20 mm. (2) The diagnostic test showed a CDS sensitivity of 75.0%, a CDS specificity of 82.4%, and an area under the ROC curve of 0.79. The CTA sensitivity was 75.0%, the specificity was 94.2%, and the area under the ROC curve was 0.85. The diameters measured by CDS and CTA were compared with the diameter measured intra-operatively. Significant differences were observed among the three diame-ters (P<0.05). The average diameter measured by CDS was 0.84 ± 0.14 mm. The average diameter measured by CTA was 1.01 ± 0.19 mm. Conclusion:CDS and CTA are relatively reliable technologies for preoperative detection of perforator vessel. The use of CDS and CTA technology mapping for SCIAPF can provide accurate information about the perforator, including the position of the perforator and the relationship between the peripheral tissues and the caliber of the vessel.

ObjectiveTo observe the effect of intravesical instillation of Brucea Javanica oil emulsion on recurrence of bladder cancer after transurethral resection of bladder tumor (TUR-Bt) operation.Methods187 patients with superficial bladder carcinoma after TUR-Bt operation were randomly divided into the group A (85 cases) and group B (102 cases). Patients of the group A were treated with instillation of Brucea Javanica oil emulsion; those of the group B were treated with mitomycin. A three-years following up was performed to observe the recurrence and side effects.ResultsAfter a 3-years following up, the recurrence rate of group A was 12.94%, lower than that of group B (34.31%). The side effects were seldom seen in the group A.ConclusionThe effect of intravesical instillation of Brucea Javanica oil emulsion to prevent the recurrence of bladder cancer after TUR-Bt operation is favorable.

OBJECTIVETo explore the regulatory effect of Suifukang (SFK), a compound Chinese patent drug on the change of free radical in tissue of spinal cord and blood caused by experimental spinal injury.

METHODSSeventy male adult SD rats were randomly divided into 4 groups, the SFK group (n = 20), the hormone group (n = 20), the control group (n = 20) and the normal group (n = 10). Rats in the former three groups were made into the right hemitransected spinal cord (T12) injury. SFK were given to the rats in the SFK group 3 days before and 2 hrs after modeling via gastrogavage, saline was given to rats in the control group at the same time. As for the rats in the hormone group, methyl-prednisolone 30 mg/kg was given once immediately by peritoneal injection. The rats were sacrificed in two batches (10 of each group in each batch) at 8 hrs and 24 hrs after modeling to obtain the serum and injured spinal cord tissue for determining superoxide dismutase (SOD) activity and malondialdehyde (MDA) content.

RESULTS(1) As compared with the normal group, SOD activity in serum and spinal tissue of the control group was lower significantly both at 8 hrs and 24 hrs after modeling, but the changes of SOD activity in the SFK and the hormone group were insignificant; (2) Content of MDA in serum and spinal tissue of rats elevated after modeling, which in the control group at 8 hrs after modeling were higher than that in the normal group, also higher than that in the SFK group and the hormone group; but at 24 hrs after modeling, it lowered significantly in both treated groups. The changes of MDA content in serum were similar to those in the spinal tissue.

CONCLUSIONSFK could effectively eliminate the excessive free radical in serum and injured spinal tissue, and raise the capability of antioxidation of organism.

Animals ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Free Radical Scavengers ; pharmacology ; therapeutic use ; Male ; Malondialdehyde ; metabolism ; Neuroprotective Agents ; pharmacology ; therapeutic use ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Spinal Cord Injuries ; drug therapy ; metabolism ; Superoxide Dismutase ; metabolism

OBJECTIVETo explore the mechanisms involved in the ligustrazine alleviation of the pulmonary artery hypertension (PAH) in patients of chronic obstructive pulmonary disease (COPD) associated with chronic cor pulmonale (CCP) during exacerbation.

METHODSSeventy patients of COPD and CCP with acute exacerbation were randomly and equally divided into control group and treatment group. The control group received standard treatment with antibiotics, antiasthmatic and expectorant medications, and oxygenation; and the ligustrazine treatment group received ligustrazine treatment (80 mg/d; i.v.; for 2 weeks) in addition to the standard treatment. Before and at the end of 2 week treatment, the clinic responses of the two regimens were evaluated, plasma levels of endothelin-1 (ET-1) and nitric oxide (NO) were determined; arterial oxygen partial pressure (PaO2, mean pulmonary arterial pressure (mPAP), outflow tract of right ventricle (RVOT), and internal diameter of right ventricle (RV) were measured.

RESULTSGood clinic benefits were achieved in both the standard and ligustrazine regimens, plasma level of ET-1, values of mPAP, RV and RVOT decreased significantly, plasma level of NO and PaO2 values decreased (all P < 0.01 vs pre-treatment to all parameters). Compared with the control group, ligustrazine greatly enhanced the clinic efficacy from 77.1% to 97.1% (P < 0.05), and also resulted in more significant changes of all these parameters (P < 0.01 vs control group for all parameters). For both groups, the levels of plasma ET-1 were positively correlated with values of mPAP, RVOT, and RV (r = 0.710, 0.853, and 0.766, respectively, all P = 0.000), and negatively correlated with plasma NO and PaO2 (r = - 0.823, and - 0.752, respectively, all P = 0.000).

CONCLUSIONLigustrazine is effective in treating pulmonary artery hypertension during acute exacerbation of COPD and CCP in patients from the plateau area. The observed changes in the plasma levels of NO and ET-1 in response to ligustrazine treatment suggest that ligustrazine may act through the selective effect on pulmonary blood vessels to enhance the synthesis and release of NO and suppress those of ET-1 from lung vascular endothelial cells, thus reducing pulmonary artery pressure and decreasing pulmonary arterial hypertension.

Altitude ; Blood Gas Analysis ; Chronic Disease ; Endothelin-1 ; blood ; Humans ; Hypertension, Pulmonary ; drug therapy ; Nitric Oxide ; blood ; Pulmonary Artery ; physiopathology ; Pulmonary Disease, Chronic Obstructive ; drug therapy ; Pyrazines ; therapeutic use ; Respiration

[ ABSTRACT] AIM:To investigate the effect of oxidized low-density lipoprotein ( ox-LDL) on autophagy in mac-rophages and the underlying molecular mechanisms.METHODS:RAW264.7 macrophages were pretreated with 2 mg/L anti-CD36 monoclonal antibody (anti-CD36 mAb), 5 μmol/L diphenyleneiodonium (DPI), 3 mmol/L 3-methyladenine (3-MA) or 1μmol/L rapamycin for 1 h and then treated with ox-LDL (100 mg/L) for 12 h.The viability of the cells was measured by MTT assay.The activities of lactic dehydrogenase ( LDH) in the medium and nicotinamide adenine dinucleoti-de phosphate ( NADPH) oxidase, superoxide dismutase ( SOD) in the cells as well as the levels of intracellular reactive ox-ygen species ( ROS) and malondialdehyde ( MDA) were determined to characterize the membrane integrity and the oxida-tive stress, respectively.The protein levels of beclin-1 and microtubule-associated protein 1 light chain 3-II ( LC3-II) , 2 important molecular markers of autophagy, were examined by Western blotting.RESULTS:ox-LDL induced autophagy in
RAW264.7 macrophages as assessed by upregulation of beclin-1 and LC3-II.Similar to 3-MA, an autophagy inhibitor, an-ti-CD36 mAb significantly inhibited the ox-LDL-induced upregulation of beclin-1 and LC3-II.Anti-CD36 mAb suppressed the ox-LDL-induced oxidative stress as revealed by decreased NADPH oxidase activation, ROS and MDA generation as well as increased SOD activity.Similar results were observed in the cells pretreated with DPI, a NADPH oxidase inhibitor.Mo-reover, DPI significantly inhibited the ox-LDL-induced upregulation of beclin-1 and LC3-II.Inaddition, the decrease in the cell viability and increase in LDH release induced by ox-LDL were promoted by 3-MA and blocked by rapamycin ( an auto-phagy inducer).CONCLUSION: ox-LDL induces autophagy in RAW264.7 macrophages, which may be involved in CD36-mediated ox-LDL uptake and subsequent activation of oxidative stress, and moderate activation of autophagy may pro-tect macrophages from ox-LDL-induced injury.

The target compounds were prepared from 5-aminobenzimidazolone by two steps reaction, and their AChE inhibitory activities were measured by Ellman method in vitro. The AChE inhibitory activity of compound 4d is the best of them, and its IC50 value is equal to 7.2 μmol·L(-1), which is better than that of rivastigmine; moreover the 4d had no inhibitory activities to BuChE. Therefore, the inhibitory activities of 5-aminobenzimidazolone derivatives to acetylcholinesterase are worth further researching.
Acetylcholinesterase ; metabolism ; Benzimidazoles ; chemical synthesis ; chemistry ; Cholinesterase Inhibitors ; chemical synthesis ; chemistry ; Drug Design ; Phenylcarbamates ; chemistry ; Rivastigmine ; Structure-Activity Relationship

In this paper, fourteen new L-proline derivatives were designed and synthesized, and their acetlcholinesterase (AChE) inhibitory activities were also investigated in vitro. New L-proline derivatives were prepared from substituted 2-bromo-1-acetophenones through four-step reaction; and their bioactivities as AChE inhibitors were measured by Ellman spectrophotometry. The results showed that the target compounds had a certain AChE inhibitory activity to in vitro. The bioactivity of compound 8b was the best of them, and its IC50 value was 5.45 µmol.L-1, which was better than that of rivastigmine. So the acetylcholinesterase inhibitory activities of new L-proline derivatives were worth to be further studied.
Acetylcholinesterase ; Cholinesterase Inhibitors ; chemical synthesis ; chemistry ; Drug Design ; Proline ; analogs & derivatives ; Rivastigmine ; chemistry ; Structure-Activity Relationship

Objective To evaluate the effect of health education on endemic diseases in Henan province in 2010.Methods According to the requirements of The Education Program for Endemic Diseases Control in 2009 Henan Province,50 counties (districts) of 18 cities with endemic diseases were selected.Referring to the health education questionnaire in the program,knowledge of endemic diseases were asked of pupils and housewives.Intervention effects were evaluated two months after teaching pupils and housewives in counties,towns,villages and schools with the knowledge of endemic diseases and the questionnaire was used.Results Among 50 counties investigated,5523 pupils and 3206 housewives were surveyed in the baseline according to the requirement,and 5417 pupils and 2891 housewives were surveyed for outcome evaluation.The results showed that after this education,pupils' knowledge about endemic diseases increased from 66.31％(10 987/16 569) in the baseline survey to 93.84％(15 250/16 251),the difference have statistical significant(x2 =3877.78,P ＜ 0.01) ; housewives from 67.56％(6133/9078)to 92.67％(8037/8673),the difference have statistical significant(x2 =1736.33,P ＜ 0.01).After the education,the pupils' knowledge about the iodine deficiency disorders,drinking-water-borne fluorosis and arsenic poisning,coal-burning-borne fluorosis increased from 70.15％ (6263/8928),62.29％(4423/7101),42.96％ (185/270),68.52％ (116/270) to 94.19％ (8344/8859),93.05％ (6376/6852),99.63％ (261/270),96.67％ (269/270),the difference have statistical significant (x2 =1749.85,1939.26,211.83,74.43,all P ＜ 0.01),housewives' knowledge about the iodine shortage diseases,drinking-water-borne fluorosis,the endemic fluorine,the arsenic poisoning increased from 73.27％ (3330/4545),62.79％ (2677/4263,30.37％ (85/135),62.96％(41/135) to 93.96％(4228/4500),91.08％(3555/3903),97.04％(123/135),91.11％(131/135),the difference have statistical significant (x2 =751.03,924.65,129.75,30.23,all P ＜ 0.01).Conclusions Health education intervention has a marked effect in increasing the peoples' knowledge of endemic diseases.Therefore health education should be enhanced in the future.

Mechanisms of acupuncture and moxibustion for treatment of hypertension have been studied extensively from poly-aspects, poly-levels and poly-links. The present paper reviews the studies on nervous regulation, humoral regulation and regulation of peripheral vessel resistance and other pathways and their relationships in recent ten years, and indicates further perfecting these studies from the following aspects: studies on the mechanism of section and combination of blood pressure-decreasing points, relationship of time-effect and dose-effect of acupuncture and moxibustion, and studies on mechanisms of functions of nerve-endocrine-immune system.
Acupuncture Therapy ; Brain ; physiology ; Endothelins ; physiology ; Humans ; Hypertension ; physiopathology ; therapy ; Moxibustion ; Neurotransmitter Agents ; physiology ; Peripheral Nerves ; physiology ; Renin-Angiotensin System ; physiology ; Vascular Resistance

As medicine and food plants, the market demand of Zamthoxyli Pericarpium is extensive, and the sanshool in Zamthoxyli Pericarpium is getting attention gradually. However, because of the low content and not establishing rating evaluation method for sanshool and lack of standards, the research on substance basis and physiological activity is necessary. This article reviewed the extraction, separation, purification and biological activities of sanshoolin Zamthoxyli Pericarpium in recent years to provide development and utilization of Zamthoxyli Pericarpium.