Objective To explore the effect of prenatal inflammation on rat offspring's blood pressure and behavioral performance.Methods Twenty-four time-mated Sprague-Dawley(SD)rats were randomly divided into three groups,i.e.control,zymosan and LPS.On their gestation days 8,10,12,the pregnant rats received i.p.injections of sterile saline,0.79 mg/kg zymosan or 0.79 mg/kg LPS respectively.When the offspring were sixty weeks old,eight pups were chosen randomly for the later study.Their serum TNF-? level was detected by ELISA using tail blood,arterial blood pressure was measured by tail-cuff method,and their behavioral performance was detected in Morris water maze test.At the end of the experiment,the brains were rapidly taken from the sacrificed offspring,cut into sections and stained with H&E method to investigate the structural changes of hippocampus.Results Compared with control group,all offspring from the inflammation groups showed increased serum level of TNF-?,increased systemic arterial blood pressure,long latency in finding the safe platform and decreased number of neurons in CA1 region of hippocampus.Conclusion Prenatal exposure to LPS or zymosan results in hypertension and disturbance of learning and memory.

Objective:To investigate the effect of cPLA 2(cytosolic PLA 2, 85-kD PLA 2) on the signaling pathways of IL-1?、IL-6 release in LPS induced Hela cells.Methods:①LPS stimulated Hela cells were exposed to the complex of cPLA 2 initiation site-directed antisense oligonucleotide and liposome in the indicated doses and time, and then,analyzed the changes of cPLA 2 both in mRNA and in protein by RT-PCR and Western blot.②At the same time, the supernatants were collected to detect the level of IL-1? and IL-6 under radioimmunoassay(RIA).Results:①The transfection led to a dose-dependent decrease in cPLA 2 protein, while the change of mRNA is not notable.②The levels of IL-1?、IL-6 in the transfected cells were reduced following the repression of cPLA 2 compared with that of LPS added only.Conclusion:cPLA 2 probably plays an important role in the signaling mechanisms on IL-1?、IL-6 release in LPS-induced Hela cell. [

OBJECTIVETo evaluate the effect of orthognathic surgery in the treatment of condylar osteochondroma.

METHODSA total of 12 cases of condylar osteochondroma were treated with Le Fort I osteotomy, intraoral vertical ramus osteotomy, sagittal split ramus osteotomy and genioplasty.

RESULTSNo recurrence of condylar osteochondroma was observed in all 12 cases two years after the treatments. Facial asymmetry was obviously corrected.

CONCLUSIONThe orthognathic surgery methods are advantageous in improving facial figure without scar development in the treatment of condylar osteochondroma.

Bone Neoplasms ; Face ; abnormalities ; Facial Asymmetry ; congenital ; Humans ; Hyperplasia ; Male ; Orthognathic Surgery ; Osteochondroma ; Osteotomy ; Osteotomy, Le Fort ; Osteotomy, Sagittal Split Ramus

Mycoplasma ovipneumoniae (Mo) is difficult to culture, resulting in many difficulties in related research and application. Since nucleotide metabolism is a basic metabolism affects growth, this study conducted a “point-to-point” comparison of the corresponding growth phases between the Mo NM151 strain and theMycoplasma mycoides subsp. capri (Mmc) PG3 strain.The results showed that the largest difference in nucleotide metabolism was found in the stationary phase. Nucleotide synthesis in PG3 was mostly de novo, while nucleotide synthesis in NM151 was primarily based on salvage synthesis. Compared with PG3, the missing reactions of NM151 referred to the synthesis of deoxythymine monophosphate. We proposed and validated a culture medium with added serine to fill this gap and prolong the stationary phase of NM151. This solved the problem of the fast death of Mo, which is significant for related research and application.

ObjectiveTo observe the changes of expression of aquaporin-1(AQP-1)and AQP-4 in drowned and postmortem immersed rats’lungs.MethodsThirty healthy male Wistar rats were randomly divided into drowning group, postmortem immersion group and cervical dislocation group. The morpho-logical changes of rats’lungs were observed using HE staining. The mRNA and protein expressions of AQP-1 and AQP-4 in rats’lungs were detected by real-time PCR, immunohistochemistry and Western blotting, respectively.ResultsThe results of immunohistochemistry and the Western blotting showed that the protein expression of AQP-1 of the drowning group was higher than the postmortem immersion group and the cervical dislocation group(P<0.05). The result of immunohistochemistry showed that the protein expression of AQP-4 of the drowning group was higher than the postmortem immersion group and the cervical dislocation group(P<0.05)while no difference were detected among the three of them by Western blotting(P>0.05). The mRNA expressions of AQP-1 and AQP-4 in rats’lungs of the drown-ing group was significantly higher than the postmortem immersion group(P<0.05).ConclusionThe in-crease of mRNA and protein expressions of AQP-1 and AQP-4 in lungs of rats with cute lung injury of the drowning group would be useful for differentiating vital drowning from postmortem immersion.

Objective To incestigate the fetures of cranial CT and MRI in the patients with eclamptic encephalopathy.Methods The CT and MRI findings of eight cases of eclamptic encephalopathy with the charge of CT,MRI appearance of FLAIR(fluid attenvated inversion-recovery),DWI(difussion weighted imaging),ADC(apparent diffusion coefficient)were analyzed retrospectively.Results Of eight patients,5 cases had abnormal finding in the cranial CT with showed symmetric plaque-like low-attenuated lesions in cortex and subcortical white matter of parietal and occipital lobes in six cases;eight cases had abnormal findings in the cranial MRI,the lesions were demonstrated as slightly hypointensity on T1WI and slightly hyperintensity on T2WI and remarkably hyperintensity on FLAIR,and iso or slightly hyperintensity on DWI,and remarkably hyperintensity on ADC.The lilateral parietal occipital lobes and cerebellar hemisphere and Brain Stem were the more common sites.Conclusions The only characteristric findings of eclamptic encephalopathy in MRI and CT imaging studies is vasogenic edema and reversible,especially in the subcortical white matter of the parietal and occipital lobes bilaterally,and cereballar hemisphere et al;especially cranial CT showed symmetric plaque like low-attenuated lesions of posterior brain;FLAIR,DWI and ADC of MRI can be helpful for early diagnosis and diffenential diagnosis,prognosis and curative effect of hypertensive encephalopathy.

Objective: To reduce the risk of 3'-terminal mismatch between primers and template and increase the sensitivity of polymerase chain reaction (PCR) in the detection of variable region of DNA. Methods: A pair of special primer(WU, WD) was designed to amplify a fragment of HBV DNA P gene by PCR, Other 2 similar pairs of primer (MU1, MD1, MU2, MD2) were obtained by knocking off 1 or 2 bases at the 3'-terminal of WU and WD. (1) Special primers (WU, WD) and degeneracy primers(WU, WD, MU1, MU2. MD1, MD2) were used to amplify 27 samples respectively by PCR under the same condition. The sensitivity of each PCR was compared. (2) Using degeneracy primers, serum HBV DNA was amplified from 4 patients who were resistant to lamivudine. The PCR products were sequenced to evaluate the effect of the 3'-terminal mismatch of primers upon PCR. Results: (1) The sensitivity of special primers and degeneracy primers were 70. 4%(19/27) and 85. 2% (23/27) respectively (P

Objective To study the effect of tanshinone ⅡA on the expression of P-selectin and ICAM-1 after cerebral ischemia reperfusion (I/R)injury in rats. Methods Rats were randomly divided into 4 groups: Sham operated group, I/R group, low dose Tan ⅡA treated group and high dose Tan ⅡA treated group. The focal middle cerebral artery occlusion (MCAO) model was made by suture-occluded method. Rats were pretreated with Tan ⅡA, ig for 3d,respectively before MCAO. After 90min MCAO following 24 hours of reperfusion, the expression of P-selectin and ICAM-1 was detected with using immunohistochemistry method. Result Compared with sham operated group, the expression of P-selectin and ICAM-1 increased after reperfusion for 24 hours in the ischemic territory(all P＜0.01).Compared with I/R group, the expression of P-selectin and ICAM-1 decreased in a dose dependent manner in low and high dose Tan ⅡA treated group(P＜0.01).Compared with that of I/R group, cerebral infarction volume was decreased in a dose dependent manner in low dose Tan ⅡA treated group and high dose Tan ⅡA treated group(all P＜0.01).The change of ischemic impairment in low or high dose Tan ⅡA treated group was less than that in IR group, and the change of ischemic impairment in high dose Tan ⅡA treated group was less than that in low dose Tan ⅡA treated group. Conclusion Tan ⅡA may reduce cerebral ischemia-reperfusion inflammation injure by decreasing the expression of p-selectin and ICAM-1.Tan ⅡA plays protective effect on cerebral ischemia injury, especially when high dose of Tan ⅡA(30mg/kg)was used.

ObjectiveTo investigate the anti-tuberculosis treatment response and outcomes in treatment naive patients infected with multidrug-resistant tuberculosis (MDR-TB).MethodsA total of 408 patients who were diagnosed with MDR-TB in Shanghai Pulmonary Hospital from January 2006 to January 2009 were recruited in this study.These patients were divided into two groups based on their previous treatment history:treatment naive group and re treatment group. The treatment response,outcomes andadverse eventswere observed. The outcomes of thesetwo groupswere compared by cohort analysis and x2 test.ResultsThe sputum conversion rates,the lesions absorption rate and the cavity closing or shrinking rate of the treatment naive MDR TB group were significantly higher than those of the re treatment group,while the adverse events rate was not significantly different between two groups (x2 =0.434,P＞0.05).Among 89 treatment naive cases,66 cases (74.16％) were cured,8(8.99％) completed the full treatment course,7(7.87％) were treatment failure,3(3.37％) died,and 5(5.62％) were lost to follow-up.Among the 319 cases of re-treatment MDR TB group,134 (42.01％) were cured,31(9.72％) completed the full treatment course,116 (36.36％) were treatment failure,12(3.76％) died,26(8.15％) were lost to follow-up.The cure rate of the treatment naive MDR-TB group was significantly higher than that of re-treatment group (x2=28.783,P＜0.01).The factors influencing the treatment outcomes included the stage of the disease,the range of lesions and cavity, the patients'generalnutritional status, underlying complications,and the drug-resistant strains. Conclusions The anti-tuberculosis treatment outcomes are better in treatment naive patients with MDR-TB infection compared to the treatment experienced and retreated patients.Therefore,the status of the drug resistance should be closely monitored in order to detect MDR-TB as early as possible.With the early diagnosis,the treatmcnt regimen may be modified timely and as a result the treatment outcomes can be improved.