A full and accurate review involved microbial prospecting of petroleum and gaseous hydro- carbon-oxidating bacteria, microorganisms and formation of petroleum and gas, production of organic acids, oil field microorganisms and enhancement of oil recovery. Hundred and five papers are quoted.

An aluminium disc was put inarotating megnetic field.Due to mutual effect of eddy current in the disc and the megnetic field,the disc was rotated and drove a piston vacuum pump and in turn negative pressure was generated,This is the principle of our decompressor.The suction of the decompressot can be ad- justed when necessarty and displayed by a negtive pressure indicator.The auto- matic stop and alarm system have been designed.When the bottle is full the system will stop the pump and give an alarm immediately in ortder to protect the mecha- nismic parts from being damaged.

To construct a library of mouse single chain variable fragment (scFv) antibody against ofloxacin using phage display and recombinant antibody technique, specific anti-ofloxacin scFv was screened and 3D structure was homology modeling. Total RNA was extracted from hybridoma cell of ofloxacin mAb, and was used to amplify VH and VL gene by RT-PCR using random primer. Then they were linked by a DNA linker encoding (G1y4 Ser) 3 as VH-linker-VL sequence forming scFv by SOE(splicing by overlap extension) PCR. These fragments were inserted into phage T7 after double digestion and transformed with host bacteria BLT5403. 3 ×105 pfu / ml single chain antibody phage libraries were successfully constructed. Four positive phage scFv clones were screened by direct competitive ELISA after four times of enriched procedure in the order of adsorption-elution-amplificatio, 3D structure of specific scFv was homology modeling finally. This research lays a foundation for further massive expression of anti-ofloxacin scFv.

Objective To evaluate the curative methods of periampullary diverticula(PAD) complicated with biliopancreatic disease.Methods The clinical data of 32 cases of PAD complicated with biliopancreatic disease treated by surgical or endoscopic measures were retrospectively analyzed.Results Of the 32 cases,16 cases were treated with gastroectomy and Roux-en-Y gastrojejunostomy,and 8 with gastroectomy and Billroth Ⅱ gastrojejunostomy,8 with endoscopic sphincterotomy (EST).Postoperative complication occured in 4 cases,but no operative death.Twenty-seven cases were followed up for 5 months-8 years, and the results were excellent in 20 cases, good in 7 cases.Conclusions Gastroectomy and Roux-en-Y gastrojejunostomy is a better surgical method for PAD complicated with biliopancreatic disease.EST has become a new effective measure to deal with the diseases;It will be safe to use the first method for patients with intradiverticular papilla if it treated by EST.

Objective To analyze the clinical characteristics in elderly onset rheumatoid arthritis(RA) patients combined with interstitial lung disease(ILD).Methods Four hundred and four cases of elderly onset RA patients were summarized.They were divided into two groups according to whether combined with ILD.Its clinical manifestations,laboratory examinations and combined diseases were analyzed.Results (1)Male elderly patients with onset of RA were more likely to occur ILD than female(χ2=6.251,P=0.012).There was no significant difference in duration analysis of two groups(t=1.750,P=0.081).(2)The elderly onset patients in RA with knee pain were more likely to happen ILD(χ2=7.048,P=0.008),the difference was significant.And there was no significantly statistical difference in the shoulder joint pain(χ2=0.028,P=0.866),elbow pain(χ2=0.022,P=0.882),hand joint pain(χ2=2.041,P=0.153),hip pain(χ2=0.129,P=0.720),joint deformities(χ2=0.013,P=0.908),morning stiffness(χ2=0.000,P=0.984) and joints rheumatoid nodules(χ2=0.349,P=0.555) of two groups.(3)The elderly onset RA patients with a high level of serum RF were more likely to happen ILD(t=3.325,P=0.001),the difference was significant.And there was no significantly statistical difference in serum ANA antibodies(χ2=0.004,P=0.948),anti SSA(χ2=0.718,P=0.397),SSB antibody(χ2=0.638,P=0.424),AKA antibody(χ2=0.949,P=0.330),CCP antibody(χ2=0.500,P=0.479) and the level of ESR(t=0.582,P=0.561),CRP(t=0.381,P=0.703) and PLT(t=-1.246,P=0.213).(4)The elderly onset RA patients with ILD were more likely to appear osteoporosis(χ2=7.467,P=0.006),the difference was significant.And there was no significantly statistical difference in the occurrence of high blood pressure(χ2=0.403,P=0.526) and diabetes(χ2=0.180,P=0.671) in the two groups.Conclusion Male patients,the elderly onset RA patients with knee pain and associated with high level of serum RF more often occur with ILD.And the elderly onset RA patients with ILD are more likely to appear osteoporosis.

Objective To explore the clinical significance of dyslipidemia in patients with systemic lupus erythematosus (SLE).Methods By independent-samples t test,serum lipid level was compared between 326 SLE patients and 300 healthy controls.The total cholesterol (TC),triglyceride (TG),lowdensity lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) levels were partially compared in subgroups of SLE patients.The correlation of serum TC,TG,LDL-C and HDL-C with clinical manifestations and laboratory findings in SLE was analyzed by Pearson or Spearman correlation analysis.Results ①The serum levels of TC [(3.8±1.5) mmol/L],TG [(2.1±1.6) mmol/L] and LDL-C [(2.1±0.9) mmol/L] were significantly higher in SLE group than those of the control group [(3.4±0.6),(0.8±0.4),(1.9± 0.5) mmol/L],and the serum level of HDL-C [(1.2±0.9) mmol/L] was significantly lower in SLE group than that of the control group [(2.0±0.5) mmolFL] (t=4.953,P=0.000; t=14.569,P=0.000; t=3.204,P=0.001; t=-14.335,P=0.000].② The serum levels of TC [(4.0± 1.7) mmol/L],TG [(2.5± 1.7) mmol/L] and LDL-C [(2.2±1.0) mmol/L] were significantly higher in LN group than those of the non-LN group [(3.6±1.0),(1.6± 1.0),(1.9±0.7) mmol/L; t=2.646,P=0.009; t=6.292,P=0.000; t=3.261,P=0.001].③ The serum level of TG [(2.2±1.6) vs (1.8±1.4) mmol/L] was significantly higher in SLE patients with hypocomplementemia than that of the normal ones (t =2.098,P=0.038).The serum level of HDL-C [(1.1 ±0.4) vs (1.6± 1.7) mmol/L] was significantly lower in SLE patients with hypocomplementemia than that of the normal ones (t=-2.375,P=0.020).④ The serum level of TG [(2.3±1.7) vs (2.0±1.4) mmol/L] was significantly higher in anti-dsDNA antibody positive patients than that of negative ones (t=1.989,P=0.048).The serum level of HDL-C [(1.5± 0.4) vs (1.4±1.2) mmol/L] was significantly lower in anti-dsDNA antibody positive patients than that of negative ones (t=-2.979,P=0.003).⑤ The lipid level was correlated with the clinical manifestations and laboratory findings in SLE patients.Conclusion Dyslipidemia exists in patients with SLE and has close correlation with LN,hypocomplementemia and positive anti-dsDNA antibody.

A new combination process of sterilizing, deplug and waterflood-increasing with sodium hypochlorite in waterflooding horizons has been developed. Its applicability was certified by 4 treatments of injection wells. After treatments the water-intake capacity of injection wells was increased, the pressure at well heat was decreased, and the average duration of stability wster injection was 307 days.

To provide necessary evidence for studying the pharmacological and clinical effectiveness of Styela clava,the quantities of 21 chemical elements in Styela clava were analysised.It was found that the quantities of several mineral elements in it were higher than that in sea water,which indicated Styela clava had a relatively high ability to concentrate mineral elements.

ObjectiveTo explore the changes of astrocytes in vitro on the expression of Cyclin D1 under normal and hypoxia/reoxygenation conditions.MethodsThe primary astrocytes were isolated from the cortex of SD fetal rats(less than 24 hours) and identified by immunosytochemical method with anti-GFAP antibody after 3 passages.Astrocytes of passage 3 were divided into normal group ( control group),hypoxia/reoxygenation group ( H/R 37℃ ),and mild hypothermiaintervention group( H/R 32℃ )separately.Astrocytes from the later tow groups were reoxygenated with 4,12,and 20 hours separately after exposed to hypoxia conditions for 8 hours.Trypan blue staining was employed to detect the survival rates and immunofluorescence,western-blot were used to analyse the expressin of Cyclin D1 of of astrocytes of different groups and time points.Results 1.The GFAP positive astrocytes from passage 3 exceeded 95 ％.2.With regard to morphology and survival rates,there is no difference between astrocytes of normal and hypothermia groups after 8 hours exposure to hypoxia conditions.Reoxygenation could obviously rise astrocytes mortality with time went by ( H/R 37 ℃ group:12.87 ± 2.76 ( R4 ),31.55 ± 3.00 ( R12 ),46.40 ±8.50(R20) ;H/R 32℃ group:6.77 ± 1.53( R4),15.97 ±4.00(R12),28.33 ±5.69(R20) ;all P＜0.05).3.Immunofluorescence and western-blot revealed that reoxygenation increased Cyclin D1expression markedly,which was proportional to the duration of reoxygenation.Mild hypothermia could reduce Cyclin D1 expression of astrocytes severely under reoxygenation condition.ConclusionCyclin D1 expression can be regarded as a sensitive index of damage to astrocytes caused by hypoxia/reoxygenation conditions.