Archives ; Information Management ; Occupational Health

Objective To study the influence of Captopril preconditioning on apoptosis and the expression of gp 130 in rats of acute myocardial injured. Method Wistar rats were randomly divided into three groups:control group, Iso group and Cap preconditioning group. Cardiomyocytes apoptosis was detected with TUNEL method. The expressions of Bcl-2 and Bax proteins in myocardium were tested by immunohistochemistry. The expression of gp 130 was tested with Western blot method. Results The index of cardiomyocytes apoptosis was decreased, the expressions of Bax proteins and gp 130 were decreased and the expression of Bcl-2 proteins was increased in Cap preconditioning group compared with Iso group (P<0.01 or P<0.05). Conclusion The expression of gp 130 could be decreased through Cap preconditioning, which can reduce the cardiomyocytes apoptosis.

Objective To explore the effects of action observation therapy on upper-extremity motor function after ischemic stroke and on the motor cortex using functional magnetic resonance imaging (fMRI).Methods Forty patients with ischemic stroke were randomly assigned to an observational group (n =20) or a control group (n =20).Both groups received conventional rehabilitation,while the observational group was additionally provided with action observation therapy for 8 weeks.Both groups were assessed using the Fugl-Meyer assessment (FMA) and the Barthel index (BI) before and after the 8 weeks of treatment and functional magnetic resonance imaging was performed before treatment.Two months after the treatment,nine patients of the experimental group and 8 of the control group who continued to receive their respective treatments after discharge were again assessed using functional magnetic resonance imaging.Results After the treatment the average FMA score and BI score of both the observational group and the control group had increased significantly.The increase in the average FMA score of the observational group was significantly greater than that of the control group.However,there was no significant difference between the two groups in the increases in BI score after 8 weeks of treatment.The fMRI results showed that there was a significantly greater rise in activity in the bilateral precentral gyrus,parietal lobe and the supplementary motor area of the patients in the observational group after the treatment compared with the control group.Conclusion Action observation therapy can improve upper extremity motor function and performance in the activities of daily living after ischemic stroke and induce changes in the excitability of the cerebral motor cortex.

Objective To observe the effects of Astragalus polysaccharide ( APS) on tumor growth, cytokine and immune function impairment induced by cisplatin ( DDP) in mice bearing Lewis lung cancer.Methods A total of 90 mice were used in this study:10 for blank control group, and 80 mice with transplanted Lewis lung cancer were randomly divided into 8 groups:model control group (physiological saline), positive control group treated with DDP (6 mg/kg), low dose APS (50 mg/kg), moderate dose APS (100 mg/kg) and high dose APS (200 mg/kg) groups and three combinations of APS+DDP groups ( the same three APS levels with half dose of DDP, respectively) .0.3 mL of the drugs was intraper-itoneally injected to the mice, respectively, on the second day after moldeling.DDP was injected once a week and other drugs were injected once per day for consecutive 20 days.On the 21st day, blood samples were collected and serum levels of cytokine IL-2, IL-6, IL-12 and TNF-αwere determined by ELISA, and the tumor inhibition rate and immune organ in-dexes were assessed.Results The tumor inhibition rates of the positive control, low, moderate and high dose APS groups and three combinations of APS+DDP groups of mice bearing Lewis lung carcinoma were 49.30%, 17.21%, 39.68%, 17.21%, 51.02%, 57.21%and 65.11%, respectively.Compared with the model group, P<0.05 or P<0.01, and compared the three combination groups with the DDP group, P<0.05.Compared with the blank control group, the spleen index was significantly increased in the moderate and high dose APS groups and the three combinations of APS +DDP groups.There was a significant difference between the spleen indexes of the model control group, and the spleen indexes of high dose APS and the combination with high dose APS groups were significantly higher than that of the model control group (P<0.05).Compared with the DDP group, APS in various doses and combinations increased the thymus index and spleen index.Conclusions APS can improve the levels of cytokine IL -2, IL-6, IL-12 and TNF-αin mice bearing Lewis lung cancer, enhance the immune function impairment induced by DDP, has certain protective effect on the immune organs, and inhibit the growth of Lewis lung cancer in mice.When APS is used in combination with a half-dose of DDP, APS enhanced the inhibition of tumor growth.This mechanism may be related to the enhanced body immune function.Our results indicate that APS enhances the therapeutic effect of DDP and reduces its toxicity, therefore, may have potential application value in future treatment of solid tumors.

OBJECTIVETo elucidate the development of mapping and localization of susceptible genes on chromosomes to asthma related phenotypes.

DATA SOURCESPublished articles about susceptibility genes for asthma related phenotypes were selected using PubMed.

STUDY SELECTIONUsing methods of candidate gene positional clone and genome-wide scan with linkage and association analysis to determine the location in the genome of susceptibility genes to asthma and asthma related phenotypes.

RESULTSThere are multiple regions in the genome harboring susceptibility genes to asthma and asthma related phenotypes, including chromosomes 5, 11, 12, 6, 2, 3, 13, 7, 14, 9, 19 and 17. Many of these regions contain candidate genes involved in asthma development and progression. Some susceptible genes may affect the phenotype expression or response to therapy. In addition, the interaction of multiple genes with the environment may contribute to the susceptibility to asthma.

CONCLUSIONSAs an essential step toward cloning the susceptible genes to asthma, fine mapping and localization on chromosomes are definitely needed. Novel powerful tools for gene discovery and the integration of genetics, biology and bioinformatics should be pursued.

Asthma ; genetics ; Chromosome Mapping ; methods ; Genetic Predisposition to Disease ; genetics ; Humans

Objective To explore the effects of action observation therapy on upper-extremity motor function and ability in the activities of daily living after cerebral infarction.Methods Forty-one cerebral infarction survivors were randomly assigned to an observation group (n =21) or a control group (n =20).Both groups were given the conventional rehabilitation treatment,while the observation group additionally received action observation therapy 20 mins per day,6 times per week for 8 weeks.Before and after the 8 weeks of treatment,both groups were assessed using the Fugl-Meyer assessment (FMA),Wolf's motor function test (WMFT) and the modified Barthel index (MBI).Results Before the intervention there was no significant difference between the groups in any of the measurements.After the 8 weeks of treatment,all of the results in the treatment group were significantly better,on average,than those of the control group.Conclusions Action observation therapy can improve upper-extremity motor function and ability in the activities of daily living after stroke.

OBJECTIVE: To observe the time-course expression of calcium-calmodulin dependent protein kinase II delta (CaMK II delta) in cerebral cortex after traumatic brain injury (TBI). METHODS: The TBI rat model was established. The expression of CaMK II delta in cerebral cortex around injured area was tested by Western blotting and immunohistochemical staining. RESULTS: Western blotting revealed expression of CaMK II delta in normal rat brain cortex. It gradually increased after TBI, peaked after 3 days, and then returned to normal level. The result of immunohistochemical staining was consistent with that of Western blotting. CONCLUSION The expression of CaMK II delta around injured area after TBI increased initially and then decreased. It could be used as a new indicator for wound age determination following TBI.
Animals ; Blotting, Western ; Brain Injuries/metabolism* ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism* ; Cerebral Cortex/metabolism* ; Forensic Medicine ; Immunohistochemistry ; Rats ; Time Factors

9-nitro camptothecin (9-NC) loaded amphiphilic copolymer micelles were prepared with solvent evaporation method. The effects of temperature, distilled water volume, stirring rate, and drug input amount on the size and drug content of micelles were further discussed. As a result, well dispersed spherical micelles with drug content of 4.9 percent and 50 -70 nanometers in diameter were achieved with the following preparation conditions: water bath temperature 60 degrees C , distilled water amount 16 ml, stirring rate 6 500 r/min, and drug input amount 1.2 mg. 9-NC release profiles in vitro illustrated that drug release from micelles included initial burst release and following controlled release. The release rate was decreased with the increase of drug content.
Antineoplastic Agents ; administration & dosage ; chemistry ; Camptothecin ; administration & dosage ; analogs & derivatives ; chemistry ; Delayed-Action Preparations ; chemical synthesis ; chemistry ; Drug Carriers ; chemistry ; Drug Compounding ; Humans ; Micelles ; Nanoparticles ; Particle Size ; Polymers ; Solubility

OBJECTIVETo compare therapeutic effects between suspine rotation and flexion manipulation for treating lumbar disc herniation.

METHODSFrom December 2008 to January 2011, 134 patients with lumbar disc herniation were treated, including 74 males and 60 females,ranging in age from 17 to 67 years,33 patients with age over 50 years old. According to diagnosis the ladder of the 9 cases bulging type, 74 hernia type, 51 cases free type. The patients were randomly divided into treatment group ( 69 cases) and control group (65 cases). All the patients were treated with the three-dimensional computer-controlled traction therapeutic apparatus,with continued traction for 20 minutes. After traction, flexion manipulation and rotat-ing manipulation were respectively adopted in treatment group and control group (on alternate days one time, 3 times as a course of treatment). The symptoms and signs (including back pain and discomfort, lower limb pain and numbness, powerless urination and defecation,numbness in perineum, straight-leg raising degree,ability of lower extremity walking,work and live) of patients were observed after treatment.

RESULTSAll patients were followed up for 0.5 to 6 months with an average of 1.1 months. After treatment, the symptoms and signs of patients have significantly improved (P < 0.01), but the symptomes of powerless urination and defecation,numbness in perineum was not improved obviously (P>0.05). Forty-two of 69 patients in treatment group got excellent result, moderate in 20, poor in 7; Twenty of 65 patients in control group got excellent result, moderate in 25,poor in 20.

CONCLUSIONThe whole effect of lumbar backwards rotation manipulation is more satisfactory than flexsion manipulation for treating lumbar intervertebral disc herniation. But spinning force and times should be noticed.

Adolescent ; Adult ; Aged ; Case-Control Studies ; Female ; Humans ; Intervertebral Disc Displacement ; physiopathology ; therapy ; Lumbar Vertebrae ; physiopathology ; Male ; Manipulation, Orthopedic ; methods ; Middle Aged ; Recovery of Function ; Rotation ; Young Adult

OBJECTIVETo investigate the intervention effects of Suxiao Jiuxin Pill (SJP) on patients with acute coronary syndrome (ACS) undergoing early percutaneous coronary intervention (PCI).

METHODSSixty ACS patients were randomly assigned to the treatment group (treated by SJP and Western medicine) and the control group (treated by Western medicine alone), 30 in each group. Coronary arteriography and early PCI were performed in all patients. The effects of SJP on the blood flow rate, the collateral artery patency, and perioperative myocardial infarction incidence were observed.

RESULTSThe coronary blood flow rate was better in the treatment group than in the control group either pre- or post-PCI. [pre-PCI thrombolysis in myocardial infarction (TIMI) level III: 16/30 vs 11/30, P < 0.01; post-PCI TIMI level III: 14/14 vs 13/19, P < 0.05)]. In patients with ITMI level 0 - I , more patients in the treatment group had collateral artery protective function than those in the control group (5/6 vs 3/13, P < 0.05). The incidence of perioperative myocardial infarction was obviously lower in the treatment group than in the control group (8/30 vs 15/30, P < 0.05).

CONCLUSIONSJP could improve the pre- and post-PCI coronary artery flow rate, increase the collateral artery patency, and reduce the incidence of perioperative myocardial infarction of ACS patients.

Acute Coronary Syndrome ; therapy ; Aged ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Percutaneous Coronary Intervention ; Phytotherapy ; Treatment Outcome