NF-?B, a group of important transcription factors, are introduced and discussed here on several aspects: their component and molecular structure; their activity control by I?B and IKK, the mechanism of their activation; their important roles in transcriptional regulation for large numbers of genes; and their importance in immunity, inflammation, cell survival, proliferation and apoptosis. The analysis of the relation between NF-?B and disease occurrence, the analysis of the relation between NF-?B and disease therapy, and the application prospect of the new strategy regarding the novel drug design and correlative diseases therapy on the basis of NF-?B as the target, are also included.

ObjectiveTo study central venous oxygen saturation (ScyO2) in controlled hemorrhagic shock rabbits resuscitation process as a transfusion trigger and traditional transfusion trigger of comparison.MethodsSelection New Zealand pure line of rabbit 32 only,simple randonly divided into 4 groups,groups A and B for the observation group,groups C and D as control group,groups of eight only.A,B,C,D four groups respectively by ScvO2 ≤70％,ScvO2 ≤75％,hemoglobin (Hb)≥8g/dl,blood loss for the whole blood volume≥30％ as transfusion trigger.From right femoral artery bloodletting 10 minute inside,made the MAP to about (40 ± 5 )mmHg,and maintained the blood pressure 60 minutes,established controlled hemorrhagic shock rabbits of animal model.And then started to resuscitate,with colloid and crystalloid infusion according to the proportion 1∶2,infusion rate of about 10 ～ 15ml/( kg · h),according to the blood pressure and heart rate,and proper adjustment according to the different requirements of each group conducted a blood transfusion.Monitoring based value,shock,shock treatment 30 minutes,60 minutes,120 minutes,180 minutes all time points,and various indexes of blood loss,blood transfusions,crystalloid and colloid fluid volume and so on.ResultsIn shock treatment observation group A late blood pressure,pH,BE,HCO3-,O2ER etc compared with the other three groups had obvious statistical differences ( P ＜ 0.05 ),group B with C and D two groups at the same time points each monitoring were no significant differences ( P ＞0.05 ).The volume of transfusion group C was most,compared with the other three groups were significant difference ( P ＜ 0.05 ),group D of blood transfusions than A,B two groups (P ＜ 0.05 ),groups A and B infused colloid fluid,crystal fluid volume than groups C and D ( P ＜ 0.05 ),each group blood lossed without significant difference.ConclusionScvO2 for controlled hemorrhagic shock rabbit resuscitation monitoring can guide controlled hemorrhagic shock rabbit of blood transfusions,according to ScvO2 ≤75％ transfusion with traditional according to Hb or blood loss transfusion trigger comparison,can achieve the same resuscitation effect,and can more accurately and individualized guide transfusion,reduce unnecessary blood transfusions,save resources.

Objective To study the relationship between ophthalmic changes and intracranial aneurysms.Design Retrospective case series.Participants 91 patients with intracranial aneurysms.Methods We analyzed retrospectively patients with intracranial a- neurysms hospitalized in Department of Neurosurgery,PLA General Hospital from Jan.2005 to Dec.2007.Patients with ophthalmic changes underwent digital subtraction angiography,and were treated by surgery or intervention therapy.Main Outcome Measures Dif- ferent locations,sizes of aneurysms and directions of its tops,situation of ophthalmic changes.Result 23 patients (25.27%) had oph- thalmic changes in 91 patients with intracranial aneurysms.12 cases(52.17%)harbored posterior communicating aneurysms.Aneurysms of petrosal segment internal carotid artery and paraclinoid internal carotid artery were both 2 cases(8.70%).Aneurysm of ophthalmic in- ternal carotid artery,anterior cerebral artery,middle cerebral artery,posterior inferior cerebellar artery,intracavernous primary trigemi- nal artery,carotid bifurcation was all 1 case (4.35%).The main ophthalmic demonstration of posterior communicating aneurysms was various degrees of oculomotor nerve palsy.Aneurysm of paraclinoid usually was accompanied by visual acuity decreasing,aneurysm of primary trigeminal artery by abducens nerve palsy and aneurysm of petrosal segment internal carotid artery by paroxysmal diplopia re- spectively.All patients before treatment lacked detailed ophthalmic examinations.The longest follow-up after treatment was 1 year.No improvement appeared in patients underwent intervention therapy.Patients underwent neck clipping had no or limited improvements. Conclusion Half of intracranial aneurysms patients with ophthalmic changes are posterior communicating aneurysms,and its main oph- thalmic change is oculomotor nerve palsy.The patients with intracranial aneurysms should be consultated by oculists in time.

OBJECTIVETo investigate the changes in characteristics of periodontal pathogens in subgingival plaque of patients with puberty gingivitis and its relevance with clinical symptoms.

METHODSA total of 108 subgingival plaque samples were collected from 30 patients with puberty gingivitis (Group G), 9 cases of chronic periodontitis (Group P) and 15 healthy controls (Group H). The age of the 54 participants was from 11 to 17. The black-pigmented bacteria (BPB), Fusobacterium nucleatum (Fn), Actinobacillus actinomycetemcomitans (Aa), Actinomyces were detected using bacterial culture. The probing depth (PD), gingival index (GI), bleeding index (BI) and attachment loss (AL) were also recorded.

RESULTSIn all these three groups, the detection rates of black-pigmented bacteria were: 3%, 30% and 100%; Fn were: 30%, 68% and 94%, statistically significantly different (P < 0.01). The lgCFU/ml of black-pigmented bacteria and Actinomyces was higher in mild-moderate group [(3.8 +/- 0.7) and (5.3 +/- 0.9)] than in Group H (P < 0.001). The lgCFU/ml of black-pigmented bacteria and Fn significantly was higher in severe inflammation group [(4.7 +/- 1.2) and (4.4 +/- 0.8)] than in the mild-moderate group (P < 0.01). The lgCFU/ml of black-pigmented bacteria, Fn and Aa was higher in severe gingivitis group [(6.6 +/- 1.0), (5.5 +/- 1.0) and (4.2 +/- 1.7)] than in mild gingivitis group (P < 0.01). The detection rate and lgCFU/ml of black-pigmented bacteria, Fn and Aa were both positively correlated with BI, PD and AL.

CONCLUSIONSIn the stage of severe gingivitis, the periodontal pathogens increased markedly, suggesting that risk of further destruction of periodontal tissue may exist.

Adolescent ; Case-Control Studies ; Child ; Dental Plaque ; microbiology ; Female ; Gingivitis ; microbiology ; Humans ; Male ; Periodontal Index ; Periodontium ; microbiology

Objective To study the application of the annular drilling in the operation of traumatic intracra-nial hematoma.Methods The clinical data of 31 cases of posterior cranial fossa hematoma were analyzed retrospec-tively.Results In 31 patients,the operation was successful and the hematoma was satisfactory.After the injury,the GOS score,22 cases recovered,8 cases of mild disability,1 case of severe disability,no case of plant survival and death.Conclusion It has high hematoma removal rate and a satisfactory recovery after surgery for traumatic posterior cranial fossa hematoma.The size and scope of the posterior fossa craniotomy are restricted by bone window, so we should have a good knowledge of the surgical indications and contraindications.

Drug Industry ; Humans ; Occupational Diseases ; epidemiology ; prevention & control ; Occupational Exposure ; prevention & control ; Risk Factors ; Ventilation

Objective To observe the level of reduced glutathione(GSH) and oxidized glutathione(GSSG)in a mouse bone cell line MC3T3-E1 cells exposed to fluoride.Methods MTT method was used to detect cell viability of M C3T3-E1 cells exposed to varying concentrations and periods of fluoride [F-concentration:0(control),0.5,1.0,2.0,4.0,8.0,12.0,20.0 mg/L; F-periods:1,2,4 and 10 days].The Xevo TQ MS was employed to test the levels of GSH,GSSG and glutamine (Gln).Results The MC3T3-E1 cell viability was significantly higher in the 2 mg/L group(0.57 ± 0.05) 1 day after the exposure compared to the respective control(0.49 ± 0.03,P ＜0.01); conversely,cell viability was markedly lower in the 8 mg/L(0.49 ± 0.07) and 12 mg/L(0.47 ± 0.09)groups 4 days after the exposure in comparison to the control(0.63 ± 0.06,P ＜ 0.05 or P ＜ 0.01).The cell viability in the 8 mg/L group(1.52 ± 0.29) 10 days after the exposure was significantly higher than that in the control group (0.86 ± 0.23,P ＜ 0.01),however,the value in the 20.0 mg/L group (0.54 ± 0.07) was significantly lower(P ＜0.01).The level of cell GSH decreased significantly in the 20 mg/L groups 2 days[(13.92 ± 4.63)μmol/L]and 10 days [(0.53 ± 0.30)μmol/L]after exposure compared to the respective comtrols [(26.42 ± 3.67),(24.85 ± 5.68)μmol/L,all P ＜ 0.01].The level of cell GSSG markedly increased in the 2 mg/L group 2 days [(1.12 ± 0.62)μ mol/L]and the 8 mg/L group 4 days [(2.13 ± 0.62)μ mol/L]after exposure compared to the controls[(0.55 ± 0.22),(1.46 ± 0.46)μmol/L,all P ＜ 0.05].The similar change was observed in the 8 mg/L group[(2.97 ± 1.30)μmol/L] 10 days after exposure compared to the control [(1.35 ± 0.50)μmol/L,P ＜ 0.05].The level of Glndecreased significantly in the 2 mg/L group[ (62.80 ± 17.4l)μ mol/L] 4 days and in the 8 and 20 mg/L groups 10 days[ (122.26 ± 19.51), (19.38 ± 8.11)μmol/L] after exposure compared to the controls [ (83.28 ±14.32), ( 147.15± 16.95) μmol/L , all P ＜ 0.05 or P ＜ 0.01 ]. Conclusions Fluoride exposure can significantly promote the changes of GSH, GSSG and Gln levels in the osteoblast, thus affecting the intracellular redox equilibrium.

Objective To evaluate the overall effect of transsphenoidal microsuegery for 23 patients with non-adenomas disease intrasellar region.Methods A toal of 23 patients with non-adenomas disease in- trasellar region,7 cases of Rathke's cleft cyst,3 cases of craniopharyngiomas,2 cases of meningiomas,2 ca- ses of pituitary tuberculous granuloma,5 cases of pituitary abscess,2 cases of empty sella,2 cases of chord- mas,were treated via sublabio-septo-sphenoidal microsurgery.Results There were among the 23 patients, groos total removal of the disease were achieved in 14 cases,subtotal removal in 7 cases,and partial removal in remain 2 cases.Diminished visual activity and visual field defects were improved in 13 cases.Menstrual disorder in all female cases and sexual disturbance in male were improved.There was no death in group. Conclusion Microsurgical technique via transsphenoidal approach is a safe and effective one for the treatment of patients with non-adenomas disease intrasellar region.

Objective To evaluate the dose distribution in clinical target volume (CTV) and organs-at-risk (OARs) in three dimension therapy plans in patients with squamous cell carcinoma of tongue receiving postoperative intensity-modulated radiotherapy (IMRT) or conventional radiotherapy (CRT) by dosimetric study. Methods Thirty-five patients with squamous cell carcinoma of tongue were divided into CRT group(n=17) and IMRT group(n=18). All patients underwent head-and-neck immobilization with a thermoplastic mask and planning CT scan, and target volume and OARs were contoured. Dose calculation and plan optimization were performed. All three dimension plans passed quality assurance before treatment. The dosimetry of therapy plans with IMRT or CRT in target volume and OARs dose distribution was compared by dose-volume histogram (DVH), conformity index (CI) and homogeneous index (HI). Results There were significant differences in D95 (isodose line to cover 95 percent target volume), CI, HI, minimum dose and maximum dose in CTV of therapy plans between patients with IMRT and CRT(P < 0.01), and there was no significant difference in mean dose of CTV(P > 0.05). The radiation dose on salivary glands (both parotid glands and contralateral submandibular gland) in patients with IMRT was significantly lower than that in patients with CRT(P < 0.01). Conclusion Compared with dose distribution of CRT plans, there are more advantages in improving dose distribution at the target volume and sparing salivary glands in IMRT therapy plans in patients with squamous cell carcinoma of tongue.

Objective To investigate Glypican-3 gene expression and mutation in hepatocellular carcinoma (HCC).Methods Glypican-3 gene expression and mutation in tumor,para-c.ancer and normal tissue of 48 HCCs were detected by RT-PCR and single-strand conformation polymorphism(SSCP),respectively.Results There was no Glypican-3 mRNA expression in para-cancer and normal tissue.Expression rate of Glypican-3 mRNA was 77.1% in tumor tissue,which was correlated with clinical staging and cell differentiation(P