BACKGROUND:Studies have shown that overexpression of myelin-associated glycoprotein (MAG) and oligodendrocyte myelin glycoprotein (OMgp) is the main reason for early neuronal regeneration failure. OBJECTIVE:To study the effect of human amniotic mesenchymal stem cel s (hAMSCs) transplantation on neural functional recovery of rats with ischemia/reperfusion (I/R) injury. METHODS:Sixty Sprague-Dawley were randomized into sham, I/R, and hAMSCs groups (n=20 per group). Rats in the hAMSCs group were given 1 mL of hAMSCs suspension (1.0×108/L) via the tail vein 24 hours after I/R injury. Rat neurological function recovery was assessed based on behavior changes, as determined by Longa behavioral score, cylinder test, horizontal ladder walking test and limb symmetry test at 1, 3 days, and 1, 2, 3 weeks post transplantation. Cel migration and distribution were observed using immunofluorescence method at 1 day, and 1, 2, 3 weeks post transplantation. MAG and OMgp protein expression was detected by western blot assay at 2 weeks post transplantation. Neuronal apoptosis was detected by TUNEL staining at 3 weeks post transplantation. RESULTS AND CONCLUSION:In the hAMSCs transplantation group, red marker-positive cel s were visible around the injury region at 1 week after transplantation, and over time, these cel s were increased in number. Significant improvement in the neurological function of rats were observed in the hAMSCs group as compared with the I/R group at 3 days and 1, 2, 3 weeks after transplantation (P<0.05), and the expression of MAG and OMgp proteins were also decreased dramatical y in the hAMSCs group (P<0.05). After I/R injury, the number of apoptotic cel s was increased, but hAMSCs transplantation reversed this effect. Overal , hAMSCs transplantation can reduce neuronal apoptosis by reducing MAG and OMgp expression levels, and thereby promote neurological functional recovery from I/R injury in rats.

Aromatic hydrocarbons are capital environmental contaminations. Pseudomonas alcaligenes NCIB 9867 (P25X) is capable of degrading aromatic hydrocarbons via the gentisate pathway. Biochemical characterization indicated that it has isofunctional enzymes for the mono- and dioxygenase- catalysed reactions. One set of the enzymes is constitutive and the other is strictly inducible. To date, only the genes for the constitutively-expressed gentisate dioxygenase and the downstream enzymes have been cloned. A mutant strain of P25X, designated SNZ28, which had the constitutive copy of the gentisate 1, 2-dioxygenase gene interrupted by a streptomycin/spectinomycin resistance gene cassette, was found to still express gentisate dioxygenase when induced by gentisate. The proteome profiles of P25X and mutant SNZ28, grown in the presence and absence of the aromatic inducer gentisate, were compared after 2D-PAGE. Fifteen distinctive protein spots which were observed only in induced cells of P25X and mutant SNZ28 but absent in non-induced cells of both were further analyzed by MALDI-TOF and Q-TOF. Of the 15 proteins, 12 showed significant sequence similarity to proteins with assigned function in other microorganisms . The identification of protein P4 which showed positive identification to a gentisate dioxygenase from Ralstonia species indicated the putative role of this protein to encode gentisate 1, 2-dioxygenase in P.alcaligenes.

OBJECTIVE: To summarize the approaches and methods for clinical pharmacists to provide clinical pharmaceutical care.METHODS: By reviewing pertinent literature combining the working experience of the clinical pharmacists,the approaches and methods for clinical pharmacists to provide pharmaceutical care were explored.RESULTS: Pharmacists could provide clinical pharmaceutical care by participating in clinical rounds,consultation and pharmaceutical monitoring,intervening medical order,offering drug-counseling service,handling the adverse clinical pharmacy events and providing medication education etc.CONCLUSIONS: Clinical pharmacists can provide various kinds of clinical pharmaceutical services for the safe,effective and economical use of drugs.

OBJECTIVE:To investigate the status quo and rationality of the perioperative use of drugs in patients with cataracta. METHODS:The drug use data of 60 patients undergoing cataracta surgery in our hospital from Apr. 2007 to Mar. 2008 were analyzed retrospectively and statistically. RESULTS:The drugs used during perioperative period consisted of antibacterials (applied either systemically or locally) and other assistant drugs (blood coagulants,drugs for decreasing intraocular pressure,anti inflammatory drugs and Chinese patent medicines). All the patients were treated with systematic antibacterials for prevention medication. The systemically used antibacterials consisted of ?-lactam antibiotics,clindamycins,aminoglycosides,fluoroquinolones and amphemycins. The problems existed in systemic use of the antibacterials manifested as irrationality in the choice of drug category,dosage,administration frequency,administration time and drug combination,etc. The locally applied antibacterials consisted of aminoglycosides,fluoroquinolones,tetracyclines and lincomycins. The problems existed in the local application of the antibacterials manifested as irrationality in administration time,drug change and drug combination,etc. CONCLUSION:The rationality of the perioperative drug use in patients with cataracta in our hospital remains to be improved.

OBJECTIVE:To analyze the problems existing in the use of thiamphenicol for outpatients. METHODS:In this retrospective study,a total of 743 outpatient prescriptions of Thiamphenicol enteric-coated tablets in one hospital during Mar. 2008 were analyzed in respect of the prescription writing,medication suitability and amount of money of prescriptions,etc. RESULTS:The problems in the use of Thiamphenicol manifested as nonstandard in prescription writing,irrational in clinical drug choice,drug combination,administration and dosage,etc. CONCLUSION:The use of Thiamphenicol in the hospital is somewhat irrational thus remains to be standardized further.

Objective To investigate the role of ERK signaling pathway in spinal cord in reduction of neuropathic pain (NP) by electro-acupuncture (EA) at Zusanli and Yanglingquan.Methods Fifty male SpragueDawley rats,weighing 180-220 g,in which the intrathecal catheter was successfully placed without complications,were randomly divided into 5 groups (n =10 each):sham operation group (S group),chronic constrictive injury (CCI) group,acupuncture at acupoint group (EA group),acupuncture at non-acupoint group (NA-EA group),and ERK inhibitor U0126 group (U0126 group).NP was induced by CCI in groups CCI,EA,NA-EA and U0126.The animals were anesthetized with intraperitoneal chloral hydrate 300 mg/kg.The right sciatic nerve was exposed and 4 ligatures were placed on the sciatic nerve at 1 mm intervals.EA (intensity ＜ 1.5 mA,frequency 2Hz) of Zusanli and Yanglingquan lasting 30 min was performed once a day for 6 days starting from 4th day after induction of NP in group EA.EA was performed at the points 5 mm lateral to the acupoints of Zusanli and Yanglingquan on the operated side in group NA-EA.Intrathecal U0126 5 μg was started on 4th day after induction of NP twice a day for 6 consecutive days.The mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) were measured at 1 day before CCI (T0,baseline) and at days 3,5,7 and 9 after CCI (T1-4).The rats were sacrificed on 10th day after induction of NP and the right lumbar segment (L4-6) of the spinal cord was removed for determination of the expression of P2X3 receptor protein and mRNA,ERK1/2 and phosphorylated ERK1/2 (p-ERK1/2) in the spinal cord dorsal horn.Results Compared with group S,MWT was significantly decreased,TWL was significantly shortened,the expression of P2X3 receptor protein and mRNA,and p-ERK1/2 was up-regulated in the other 4 groups (P ＜ 0.01).Compared with CCI group,MWT was significantly increased,TWL was significantly prolenged,the expression of P2X3 receptor protein and mRNA,and p-ERK1/2 was downregulated in EA and U0126 groups (P ＜ 0.01),and no significant change in the parameters mentioned above was found in NA-EA group (P ＞ 0.05).Compared with EA group,MWT was significantly increased,TWL was significantly prolonged,the expression of P2X3 receptor protein and mRNA,and p-ERK1/2 was down-regulated in U0126 group (P ＜ 0.01).Conclusion ERK signaling pathway in spinal cord is involved in reduction of NP by EA at Zusanli and Yanglingquan.

Objective To detect the methylation status of CDH1 3 gene promoter in colon cancer by using methylation-specific polymerase chain reaction(MSP)technique.Method The tissue specimens from 32 cases of colon cancer(observation group),and 12 cases of normal colon tissues(control group)were examined,the methylation of CDH13 gene promoter was detected by MSP.Result The methylation of CDH13 gene promoter was detected in 19 cases(59.4％,19/32)in observation group,1 case(8.3 ％,1 / 12)in control group,there was statistical significance between two groups(P =0.002).Conclusion Frequency of the methylation of CDH13 gene promoter is apparently higher in colon cancer tissues than that in normal colon tissues,it reveals that CDH13 gene promoter may contribute significantly to the development of colon cancer.

Objective To study MRI features of solid-pseudopapillary tumors of pancreas(SPTP).Methods MR findings of 3 patients with histopathologically proven SPTP were retrospectively analyzed.Results The mean diameter of these tumors was 4.5cm(3.5～8cm).One tumor was predominantly composed of cystic portions,2 tumors were composed of predominantly solid and some cystic portions.Fibrous septa was seen in cystic area in 1 case.One cystic tumor showed low signal intensities on T1WI and high singal intensities T2WI.The solid portions of mass showed moderate hypointensity on T1WI,and moderate hyperintensity on T2WI,and heterogeneous obvious enhancement on T1WI MRI in 2 cases.Conclusion There are some characteristics in MRI manifestation of SPTP.The disease might be correctly diagnosed combined with the clinical feature,and should be differentiated from nonfunctioning islet cell tumor,mucinous cystadenoma or cystcarcinoma of the pancreas,etc.

Objective To discuss the relationship between C-reactive protein and prognosis of acute coronary syndrome. Methods C-reactive protein of 60 acute coronary syndrome patients was evaluated. The individuals were divided into two groups:One group with higher CRP level and another group with normal CRP level. The following-up duration was 6 months. After correct therapy, the morbidity of re-angina, arrhythmia, heart failure, re-infarction and cardiac death was compared. Results The morbidity of re-angina, arrhythmia, heart failure, re-infarction, cardiac death was 46.3%(19/41), 43.9%(18/41),9.76%(4/41),22.0%(9/41),7.32%(3/41)respectively in higher CRP level group; The morbidity of re-angina, arrhythmia, heart failure, re-infarction was 15.8%(3/19),10.5%(2/19), 5.3%(1/19),5.3%(1/19)respectively in normal CRP group and there was no cardiac death accident. There was significant different between the two groups. Conclusions CRP plays an important role in the onset of acute coronary syndrome, and its level is related with the higher morbidity of re-angina, arrhythmia, heart failure, re-infarction and cardiac death.

OBJECTIVE:To explore the effect of rehabilitation training on restenosis following stent implantation in patients with coronary atherosclerotic heart disease METHODS:A computer.based online search of VIP database was performed to search articles regarding restenosis following stent implantation and rehabilitation treatment for patients with coronary atherosclerotic heart disease,published between January 2000 and October 2009,with key words"coronary artery,stent implantation,intracoronary restenosis,rehabilitation exercise".The data were collected,and the references of each article were reviewed A total of 20 articles were included.RESULTS:Intracoronary stent has become an effective treatment for coronary atherosclerotic heart disease,and intracoronary restenosis has been focused in clinical studies.Prophase treatment following stent implantation is very important for coronary atherosclerotic heart disease.Rehabilitation exercise in combination with antiplatelet anticoagulatiOn and lipid treatment can reconstruct coronary arterial blood transport and significantly reduce incidence of restenosis and thrombus.CONCLUSION:Regular rehabilitation exercise following stent implantation can ameliorate degree of vascular restenosis.