Efficacy and safety of pazufloxacin mesylate eye drops for bacterial conjunctivitis:a multicenter randomized, double-masked, parallel controlled clinical trial / 中华实验眼科杂志

Objective To compare the clinical efficacy and safety following the topical application of pazufloxacin mesylate eye drops with levofloxacin eye drops (LOFX) for bacterial conjunctivitis.Methods A multicenter,randomized,investigator-masked,parallel-controlled clinical trial was performed.Five hundred and twenty eyes of 520 patients with bacterial conjunctivitis were enrolled from March to October 2008 in seven ophthalmic centers in China.The patients were randomized into trial group and control group in 3 ∶ 1 ratio with the 390 eyes in the trial group and 130 eyes in the control group.Pazufloxacin mesylate eye drops was topically used 4 times per day for consecutively 7-14 days in the trial group,and levofloxacin eye drops was used in the same way in the control group.Microbiological cultures for conjunctiva sac secretions and drug sensitive test were carried out before and at the end of the administration of eye drops.The signs and symptoms were observed and scored before treatment and 0,3,7 and 14days after treatment.The adverse events following the administration of the eye drops were evaluated and compared.Results The intention to treat analysis (ITT) showed that the cure rate was 59.38％ in the trial group and 60.47％ in the control group,with the effective rate 88.80％ and 86.05％,respectively,with an insignificant difference between the two groups (x2 =0.12,P =0.72).The clinically evaluable analysis (CE) exhibited that the cure rates were 63.48％ in the trial group and 63.87％ in the control group,with the effective rate 92.46％ and 88.24％,whichwas not significantly different between them (x2 =0.54,P=0.46).The modified-ITT analysis (mITT) showed that the cure rates were 60.57％ in the trial group and 62.07％ in the control group,with the effective rate 90.32％ and 88.51％,without significant difference between the two groups (P＞0.05).Based on microbiologically evaluable analysis (ME),the clinical cure rates were 63.71％ and 63.41％ in the trial group and control group,and the effective rates were 93.44％ and 90.24％,respectively.There was no significantly difference between the both groups (P＞0.05).In the trial group and control group,the bacterial eradication rate was 89.42％ and 90.80％ based on ITT,90.11％ and 92.77％ based on CE,respectively.There was no significant difference in incidences of adverse events following the administration of the drug between the trial group and control group,including ocular tolerance,burning sensation,pricking and itching (P =0.34).Conclusions The effectiveness and adverse response were resemble between Pazufloxacin mesylate eye drops and LOFV following the topical application for bacterial conjunctivitis,which indicate that Pazufloxacin mesylate eye drops is effective and safe.

Clinical study of small incision cataract extraction in the treatment of acute angle-closure glaucoma complicated with cataract / 中国基层医药

Objective To study the clinical effect of small incision cataract extraction in the treatment of acute angle-closure glaucoma with cataract.Methods Fifty-eight patients with acute angle-closure glaucoma combined with cataract were selected,and according to the digital table they were randomly divided into two groups:control group and observation group.The patients in the control group were treated by conventional method.The patients in the observation group were treated with small incision cataract.The changes of intraocular pressure,anterior chamber depth and visual acuity before and after treatment were observed.The incidence of complications and the satisfaction of treatment were compared between the two groups.Results There were no significant differences in IOP,visual acuity and anterior chamber depth between the two groups before treatment(all P>0.05).After treatment,the intraocular pressure,anterior chamber depth and visual acuity of the observation group were (10.2±4.0)mmHg,(3.3±0.5)mm,(0.85±0.08),respectively,which of the control group were (17.5±5.0)mmHg,(3.2±0.5)mm and (0.50±0.06),respectively.The improvement of intraocular pressure and anterior chamber depth of the observation group was more significant than the control group(t=0.120,0.520,1.012,all P0.05).Conclusion Small incision cataract extraction is an effective treatment for acute angle-closure glaucoma complicated with cataract,and the postoperative complications are less.The patients are satisfied with the treatment and deserve to be popularized.

A multi-center and retrospective analysis of missed diagnosis of colorectal polyps / 中华消化内镜杂志

Objective To study the missed diagnosis of colorectal polyps during colonoscopy and its risk factors.Methods Data of 655 patients who underwent repeated co]onoscopy in 3 months (90 days) were analyzed in three endoscopy centers in Shenzhen.Miss rates of polyps and patients were calculated.Logistic regression analysis was used to identify the suspected risk factors associated with the miss rate including gender,age,symptoms of patient and number,shape,location of polyps.Results A total of 459 polyps(20.47％,459/2 242) in 224 patients(34.20％,204/655) were missed in overall 1 783 polyps within 655 patients.The patient miss rate increased with the polyp count increasing from 1 to 4,but with no significant differences.Polyp count of more than 5 was the independent risk factor for patient miss rate during colonoscopy(OR=4.98,P=0.00).Polyps in males were easier to be missed than those in females (OR =1.76,P =0.00).Size less than 5 mm was the independent risk factor for missed diagnosis during colonoscopy(OR=2.94,P=0.00).The flat type(Yamada Ⅰ,Ⅱ) was also the independent risk factor(OR=2.72,P=0.01;OR=3.23,P=0.00 respectively).Conclusion The miss rate of polyps is related to gender,basic polyp count,the size and shape of polyp.Male with multiple polyps and polyps with flat type and small size tend to be missed.

Comparison of 18F-FDG and 68Ga-DOTA-NOC PET/CT on the diagnosis of G3 neuroendocrine neoplasm / 中华核医学与分子影像杂志

Objective To investigate the clinical value of 18F-FDG PET/CT in diagnosing G3 NEN and compare it with 68Ga-DOTA-NOC PET/CT.Methods Twenty-three patients (12 males,11 females;average age (63± 12) years) diagnosed of NEN between January 2006 and November 2016 were retrospectively recruited in this study:11 patients with gastroenteropancreatic NEN (GEP-NEN),10 with G3 NEN in lungs,1 with malignant pheochromocytoma and 1 with G3 NEN of unknown primary site.All patients underwent 18F-FDG PET/CT for staging and evaluation of biological behavior,and 9 of them also underwent 68Ga-DOTA-NOC PET/CT within 1 week.Image interpretation was analyzed by visual and semi-quantitative analysis,and SUVmax was calculated.Results All 23 cases showed positive results on 18F-FDG PET/CT (100％,23/23),with primary tumor SUVmax 10.56±3.94.Compared with 18F-FDG PET/CT,the positive detection rate of 68Ga-DOTA-NOC PET/CT was lower (6/9 vs 9/9),with primary tumor SUVmax 14.24± 10.00.There were 22 patients with distant metastasis.The most frequent metastatic sites associated with G3 NEN in lungs were lymph nodes and bones,while those with GEP-NEN were lymph nodes and the liver.In one patient with non-functional NEN,some metastatic lesions showed negative results on 18F-FDG PET/CT but positive results on 68 Ga-DOTA-NOC PET/CT.Conclusions 18 F-FDG PET/CT has higher diagnostic ability for G3 NEN and may serve as a useful tool for evaluating biological behavior of G3 NEN.68Ga-DOTA-NOC PET/CT is valuable as a complementary diagnostic tool in a small proportion of high differentiated G3 NEN.

Antimicrobial activity of Musca domestica cecropin -4 ( mdCec 4 ) against Acinetobacter baumannii / 中华微生物学和免疫学杂志

Objective To study the antimicrobial activity of chemically synthesized Musca domes-tica cecropin-4 (mdCec4) against Acinetobacter baumannii. Methods Minimum inhibitory concentration (MIC) and minimum bactericidal concentration(MBC) of mdCec4 against Acinetobacter baumannii were de-tected by microdilution method. Dynamic time-kill curve was monitored by microplate reader. Effects of dif-ferent influencing factors,such as NaCl,trypsin and pH value,on the antimicrobial activity of mdCec4 were assessed. The ultrastructure of Acinetobacter baumannii exposed to the MIC of mdCec4 was observed under scanning electron microscope (SEM). Results The MIC and MBC of mdCec4 against Acinetobacter bau-mannii were 4 μg/ml and 8 μg/ml,respectively. The dynamic time-kill curve revealed that mdCec4 had a high antimicrobial activity within 24 hours. The antimicrobial activity of mdCec4 was not affected by NaCl concentration ranged from 0 to 200 mmol/L, but could be inhibited by trypsin at a concentration of 1.0 mg/ml. Among Tris-HCl buffers with different pH values (6.5, 7.5, 8.8), the optimum condition for mdCec4 was pH8.8. Results of SEM showed that the degree of bacterial cell injury was positively correlated with exposing time. Conclusion This study shows that the newly discovered mdCec4 has a better antimicro-bial activity against Acinetobacter baumannii as it can eliminate Acinetobacter baumannii within a short period of time and its antimicrobial ability can last more than 24 hours. Moreover,mdCec4 has the characteristic of good stability in conditions of different concentrations of NaCl and Trypsin as well as various pH values. SEM observation shows that the MIC of mdCec4 can destroy the integrity of bacterial membrane resulting in a re-lease of a large number of cell contents, which finally lead to the death of Acinetobacter baumannii. This study provides references for further study of the antimicrobial mechanism of mdCec4 against Acinetobacter baumannii.

Histological Observation and Expression Patterns of antimicrobial peptides during Fungal Infection in Musca domestica (Diptera: Muscidae) Larvae

ABSTRACT Housefly, Musca domestica, has a complicated immune system. However, its underlying operating mechanism remains elusive. Candida albicans is a major pathogen affecting humans by causing deep infection fungous disease, but it is non-symbiotic in houseflies. To investigate the C. albicans infection process in housefly, the changes in morphological and histological and expression patterns of antimicrobial peptide were monitored to indicate the insect's response to fungal infection. The results showed that scattered brown spots were comprising melanized encapsulation and encapsulated fungal cells were initially observed at the inner side of larvae's body wall 3 h post-infection (PI). Between 6 and 36 h PI, the whole body of larvae was densely covered with the brown spots, which then gradually disappeared. The majority had disappeared at 48 h PI. Some fungi colonized in the gaps between the body wall and the muscle layer, as well as among muscle fibers of the muscle layer at 12 h PI and hyphal was observed at 18 h PI. These fungi colonized distribution changed from a continuous line to scattered spots at 24 h PI and virtually disappeared at 48 h. The results of quantitative PCR analysis revealed that in coordination with the variation during the infection, the expression levels of four antimicrobial peptides were up-regulated. In conclusion, C. albicans infection in M. domestica larvae involved the following stages: injection, infection, immune response and elimination of the pathogen. The rapid response of antimicrobial peptides, melanized encapsulation and agglutination played a vital role against the pathogenic invasion.

Expression of musca domestica β-glucosidase in the organs besides digestive system of Ⅲ instar larvae / 局解手术学杂志

Objective To study whether the organs besides digestive system of musca domestica Ⅲ instar larvae have the capability of produceing musca β-glucosidase.Methods Tissues of malpighian tubules,trachea,epiploon and body wall of musca domestica Ⅲ instar lar-vae were dissected under anatomic microscope,and the expression of β-glucosidase gene in these dissected tissues were detected by reverse transcription PCR.And the tissue localization of β-glucosidase mRNA was further identified by in situ hybridization.Moreover,anti-cellulase was used to determinate the tissue distribution with immunohistochemical staining.The relative mRNA expression levels of musca domesticaβ-glucosidase gene in these organs were tested by real-time quantitative PCR.Results The reverse transcription PCR showed that the ampli-fication products of β-glucosidase gene were observed in tissues of malpighian tubules,trachea and body wall.β-glucosidase mRNA was shown in the epithelium cells of malpighian tubules,trachea and body wall by in situ hybridization,and it was almost the same in the results of im-munohistochemical staining.The real-time quantitative PCR showed that the relative expression quantity of β-glucosidase gene in malpighian tubules and body wall were higher than that in foregut,while it was lower in itrachea than that in foregut.And it was of statistical difference in gene expression level of β-glucosidase among these organs (P <0.05).Conclusion Malpighian tubules,trachea and body wall of musca domestica Ⅲ instar larvae have the function of secreting β-glucosidase.Combining with the characteristics of secreting β-glucosidase in most organs of digestive system,it may provide a new biological method for the prevention and treatment of human diseases transmitted by musca domestica with the use of taget gene β-glucosidase.

Construction of cTnC-linker-TnI (P) Genes, Expression of Fusion Protein and Preparation of Lyophilized Protein / 生物医学工程学杂志

In order to construct and express human cardiac troponin C-linker-troponin I(P) [ cTnC-linker-TnI(P)] fusion protein, detect its activity and prepare lyophilized protein, we searched the CDs of human cTnC and cTnI from GenBank, synthesized cTnC and cTnI(30-110aa) into cloning vector by a short DNA sequence coding for 15 neutral amino acid residues. pCold I-cTnC-linker-TnI(P) was constructed and transformed into E. coli BL21(DE3). Then, cTnC-linker-TnI(P) fusion protein was induced by isopropyl-β-D-thiogalactopyranoside (IPTG). Soluable expression of cTnC-linker-TnI(P) in prokaryotic system was successfully obtained. The fusion protein was purified by Ni²⁺ Sepharose 6 Fast Flow affinity chromatography with over 95% purity and prepared into lyophilized protein. The activity of purified cTnC-linker-TnI(P) and its lyophilized protein were detected by Wondfo Finecare™ cTnI Test. Lyophilized protein of cTnC-linker-TnI(P) was stable for 10 or more days at 37 °C and 4 or more months at 25 °C and 4 °C. The expression system established in this research is feasible and efficient. Lyophilized protein is stable enough to be provided as biological raw materials for further research.

Stent-assisted embolization of Acutely rupture and unrupture wide-necked Intracranial aneurysms：com- plication and efficacy / 中国神经精神疾病杂志

Objective To assess the safety and efficacy of stent-assisted coil embolization for acutely ruptured wide-necked intracranial aneurysms. Methods We retrospectively reviewed 192 wide-necked intracranial aneurysms in 178 patients. The efficacy and peri-procedure complications of stent-assisted embolization were compared between rup?ture aneurysms and unrupture aneurysms. Results Stent was successfully implanted in 78 rupture aneurysms and 114 un?rupture aneurysms. There was statistically significant difference between rupture aneurysms and unrupture aneurysms groups in rate of poor prognosis on discharge ( 23.1%vs. 5%,χ2=12.726, P0.05)nor in the rate of mortality and permanent disability (8.9%vs. 6.1%,χ2=0.475, P>0.05). Angiograms at 14.7 months of follow-up did not reveal any significant difference between rupture aneu?rysms and unrupture aneurysms groups in aneurysm complete occlusion (74.1%vs. 70.6%,χ2=0.197,P>0.05), recana?lization (10.3%vs. 9.4%,χ2=0.034,P>0.05)and in-stent stenosis (3.4%vs. 4.7%,χ2=0.136,P>0.05). Conclusion Stent-assisted coil embolization for acutely rupture wide-necked intracranial aneurysms can prevent recurrence effective?ly and can achieve high complete occlusion rate in long term follow-up. However, its procedure related complications and mortality is higher in rupture aneurysms than in unrupture aneurysms, which indicates that a caution is needed to conduct stent-assisted coil embolization in rupture aneurysms.

Fast-Fix combined with sodium hyaluronate in meniscal repair under arthroscope / 中国组织工程研究

BACKGROUND:Sodium hyaluronate is a polysaccharide polymer biomaterial, which is considered to have a certain effect to repair the cartilage surface, reduce the release of inflammatory mediators, and promote meniscal repair. OBJECTIVE:To observe the therapeutic effect of Fast-Fix combined with sodium hyaluronate in meniscal repair under arthroscope. METHODS:Eighty-six patients with meniscus injury admitted at the Department of Orthopedics, CNPC Central Hospital, from March 2008 to March 2014 were enrol ed in the study. The average age was 25.5 years, and the average duration of disease was 1.5 months. The main clinical manifestations included knee joint pain and swel ing after exercise and positive McMurray signs. The MRI results showed meniscus tear or degeneration. Arthroscopic repairing surgeries were performed with Fast-Fix combined with sodium hyaluronate injection (2.5 mL at the end of surgery), and then sodium hyaluronate was injected intraarticularly at 1, 2, 3 weeks after surgery. Each patient was assessed with Lysholm knee joint score system before and after operation. RESULTS AND CONCLUSION:Eighty-one patients were fol owed up for an average of 1.5 years and five patients were lost to fol ow-up. Joint locking, significant tenderness and movement disorder symptoms disappeared in 79 of 81 patients, and meniscal healing was shown on MRI review within 1 year after surgery;the Lysholm score was higher than 75 points, and the excel ent rate was 98%. Only the remained two patients felt swel ing and tenderness and the movement was slightly restricted when going down or standing up. The Fast-Fix combined with sodium hyaluronate in meniscal repair under arthroscope has good effect and good function of knee joint.

The application of Narcotrend index on guiding propofol combined with different analgesic drugs on the colonoscopy / 中国综合临床

Objective To explore the clinical application of Narcotrene Ineex( NI)on guieing the usage of propofol combinee with eifferent analgesic erugs at colonoscopy examination,in oreer to evaluate the application ane clinical safety of the eifferent analgesic erugs. Basee on NI guieance,propofol effect-site concentration was aejustee euring colonoscopy. Methods Two huneree ane forty patients with colonoscopy were selectee as our subjects. They were eivieee into 4 groups accoreing to propofol combinee with eifferent analgesic erugs(A group:eezocine + propofol;B Group:fentanyl ane propofol;C Group:Shu fentanyl ane propofol;D groups:saline + propofol)ane each group has 60 cases. At eifferent stages of surgery,NI was control within 56- 65 or 66 - 75 in terms of anesthesia eegree. The life ineices( mean arterial pressure( MAP),heart rate, respiratory rate(RR)ane oxygen saturation( SpO2 )),ineuction time,insert the mirror ane surgical time ane recovery time ane cases with boey movement,the cases of respiratory eepression were recoreee. The analysis of each group of patients with VAS scores ane the total amount of propofol the patients were recoreee at 5 time points(before anesthesia(T1)ane eyelash reflex time(T2),insertee through the anus mirror(T3),when insertee mirror up to the ileocecal(T4)ane the back mirror finish(T5)). Results MAP,heart rate,respiratory rate of patients in four groups at T2,T3 ane T4 time point were eecreasee than that in T1. Comparee with D group, MAP,heart rate,respiratory rate of patients in A,B ane C groups eecreasee at eifferent eegrees(MAP:F within group = 26. 793,P < 0. 05;F interaction = 6. 532,P < 0. 05;F between group = 7. 574,P < 0. 05;Heart rate:F within group = 21. 428,P < 0. 05;F interaction = 6. 316,P < 0. 05;F between group = 5. 431,P < 0. 05;Respiratory rate:F within group = 14. 226,P < 0. 05;F interaction = 5. 531,P < 0. 05;F between group= 7. 986,P < 0. 05). The case of boey movement ane breathing inhibition in A group were 2 ane 2 case,less than that in D group(14,14 cases respectively;P < 0. 01). VAS score ane the total amount of propofol in A,B, C groups were(1. 20 ± 0. 72)points ane(148. 40 ± 10. 53)mg;(1. 88 ± 0. 88)points ane(178. 85 ± 18. 59) mg;(1. 65 ± 0. 74)points ane(166. 68 ± 16. 22)mg,less than that in D group((2. 35 ± 1. 10)points ane (227. 33 ± 28. 66)mg),ane the eifferences was statistically significant( F = 18. 038,177. 399;P < 0. 05).Conclusion During colonoscopy,Narcotrene real-time monitoring of propofol combinee with eifferent analgesics can significantly reeuce the amount of narcotic erugs,shortee recovery time,reeuce the incieence of complications in patients,ane thus enhancing patient comfort .

Application of objective structured clinical examination in assessment of interns of traditional Chinese medicine in anesthesiology department / 中华医学教育探索杂志

Objective To investigate the application efficacy objective structured clinical exam-ination (OSCE) in assessment of interns of traditional Chinese medicine in anesthesiology department. Methods Totally 62 interns were examed by OSCE formulated by anesthesiology department before de-partmental rotation. Contents of the exam included preoperative evaluation,endotracheal intubation tech-nique,deep venipuncture,lumbar puncture,case analysis,medical documents writing,etc. Assessment was made by exam results and questionnaire survey. Quantitative data were analyzed by ANOVA and results of questionnaire were analyzed by calculating percentage of each option and describing directly. Results Test results showed that the score of medical document writing was the highest(18.25 ± 1.53),while that of case analysis was the lowest(13.49±1.46)and there was no significant difference in scores of three clinical skills. Questionnaire survey showed the OSCE method is superior to traditional method since it is more scientific,objective and fair. Conclusions OSCE method can scientifically as-sess the clinical practice effect of interns of traditional Chinese medicine in anesthesiology department. Meanwhile, it can find the shortcomings in the teaching, which is helpful in promoting the assessment and improvement of clinical teaching.

Anatomical study of motor branches from tibial nerve transfer to restore the deep fibular nerve / 中华显微外科杂志

Objective To explore the feasibility of tibial nerve motor branches transfer to the deep fibular nerve in an anatomical study.Methods Twenty-three sides lower limbs from 12 adult cadavers which preserved in Formalin were used for dissection of the tibial nerve and its all motor branches,and the proximal deep and superficial fibular nerve.Experimental measurement were performed for the parameters of each branch such as length,diameter,the location of original point relative to the level of the fibular head.The diameter of proximal part of the deep fibular nerve was measured simultaneously.Finally,the length from original point of each branch to the fibular neck was also measured during simulation of nerve transfer procedure.Results The average length of motor branches to the flexor digitorum longus muscle,to the flexor hallucis longus muscle and the superficial branches to the soleus muscle were (95.70 ± 13.40)mm,(96.90± 13.60)mm and (73.60 ± 12.00)mm respectively.Their average diameter were (0.63 ± 0.16)mm,(0.65 ±0.20)mm and ( 1.56 ± 0.26)mm respectively.The average diameter of proximal deep fibular nerve was (2.54± 0.26)mm.Based on length,branches to the flexor digitorum longus muscle and flexor hallucis longus muscle were adequate for direct nerve transfer to the deep fibular nerve in all specimens without interpositional grafr.And in 22 specimens (95.7 percent),the superficial branches to the soleus muscle were long enough to directly transfer.Other branches of the tibial nerve were not adequate for direct nerve transfer Conclusion This study confirmed the anatomical feasibility of using motor branches from tibial nerve for direct transfer to restore the deep fibular nerve.The superficial branches to soleus muscle were the best donor nerve if considering the branches,length,diameter and the difficulty of surgical procedures.

Coverage the soft tissue defect in the foot and ankle with peroneal artery perforator-based sural neurocutaneous island flap / 中国基层医药

Objective To study the methods and therapeutic effect of coverage the soft tissue defect in the foot and ankle with neurocutaneous sural artery island flap.Methods 30 patients had been reconstructed foot and ankle soft-tissue defects with neurocutaneous sural artery island flap,the area of soft tissue defect from 2.0 cm × 3.5 cm～ 8.0 cm× 16.5 cm,the flaps were designed with the size measuring 2.5 cm × 4.0 cm to 8.5 cm × 18cm.Results 26 flaps survived completely and 4 with partial or margin necrosis,the wound infection occurred in 6 patients and were treated with dressing,shin graft and antibiotic drug.Conclusions Sural neurocutaneous island flaps are easy to separate.Major arteries are not injured.It is the ideal flap to repair the soft tissue defect around ankle and foot,the texture,color and contour of the flap is similar to recipient area.

CT measured parameters of upper airway in OSAHS patients / 中国耳鼻咽喉头颈外科

OBJECTIVE To explore the value of spiral CT in detecting narrow level of obstructive sleep apnea hypopnea syndrome(OSAHS) through investigating measured parameters of upper airway. METHODS The upper airway levels from the roof of nasopharynx to the inferior border of cricoid cartilage were scanned with spiral CT in 127 OSAHS patients and 52 controls.The coronal and sagittal diameter and the cross sectional areas of palate,uvula,tongue, epiglottis level were measured using image handling workstation.The measured values of each level were divided by the measured values of the cricoid cartilage level,and get relative values.The relative values of the OSAHS patients and controls were compared. RESULTS The relative values of posterior soft palate and uvula region,lingual region and epiglottis regions were statistically different.The difference also existed between genders.The relative values of 46 controls and 17 OSAHS patients were in the normal range. Among 127 OSAHS,the relative values of 110 cases with OSAHS(86.6%) were below the normal range in every region,while in control group,the relative values were found below the normal range in only 6 persons (11.2%).CONCLUSION The relative values of each regions is useful to judge the narrow level of upper airway in OSAHS patients.

Effects of Piracetam on Superoxide Dismutase Activity and Malonaldehyde Content in Brain Tissues of D-galactose-induced Aging Rats / 中国药房

OBJECTIVE: To explore the effects of piracetam on superoxide dismutase(SOD) activity and malonaldehyde(MDA) content in brain tissues of D-galactose-induced ageing rats.METHODS: 30 SD rats were randomized to one of the 3 groups: blank control group(NS),model group(D-galactose+NS) and piracetam group(D-galactose+piracetam 432 mg?kg-1?d-1).All the rats were put to death at 90 days after medication,and the SOD activity and MDA content in brain tissues were determined.RESULTS: As compared with the blank control,the SOD activity decreased(P

Quality control and administration of PET-CT / 医疗卫生装备

The purpose of quality control is to form a standard,scientific,and unified control system for PET-CT.The improvement of regulations is the base.The training of technicians is the key.The establishment of radiological protection rules is the assurance.So it is an important link to improve the quality control of PET-CT for better sensitivity and accuracy of PET-CT.

Imaging Department's Layout and Relocation of Equipments / 医疗卫生装备

By analysing working flow and layout of imaging department, the importance of scientific planning is elaborated. Also, how to relocate imaging department and facilities rapidly.

Effects of remote preconditioning on inflammatory cytokines and respiratory index of rabbit lung injured by ischemia-reperfusion / 解放军医学杂志

Objective To investigate the effects of remote preconditioning on inflammatory cytokines and respiratory index of rabbit lung injured by ischemia/reperfusion.Methods Eighteen rabbits were randomly divided into three groups(6 each):control group(C),ischemia-reperfusion group(I/R)and remote preconditioning group(R).The plasma concentrations of interleukin-6(IL-6),tumor necrosis factor-?(TNF-?)and interleukin-10(IL-10)were measured before ischemia and 60,120 and 180 min after reperfusion.Respiratory index(A-aO2/PaO2)was calculated before ischemia and 15,30,60,120 and 180 min after reperfusion.The animals were sacrificed after reperfusion,and the left lung was removed for calculation of wet/dry(W/D)ratio and lung permeability index,histological examination was done with light microscope,and diffuse alveolar damage(DAD)scores was estimated.Results The plasma concentrations of IL-6 and TNF-? were significantly higher in I/R group than in C group(P

STUDY ON NUTRITION CONTENTS AND VALUE OF MUSCA DOMESTICA LARVAE / 中国血吸虫病防治杂志

Objective To gain experimental data about breeding Musca domestica larvae by pig manure and to evaluate the effects and cost-benefit of feeding hens with larvae instead of fish powder. Methods The concentration of fatty acids and trace elements in the larvae bred with man-made fodder or pig manure were measured. The quality of eggs produced by hens fed with the larva powder or fresh larvae was investigated. Results The contents of trace elements (Ca,Fe,Cu,Zn,Se) of the larvae bred with pig manure were higher than those with man-made fodder(P0.05). Conclusion Breeding Musca domestica larvae with pig manure could produce good larva protein and reduce the expenses. The quality of the egg produced by the hens fed with larvae is as good as the quality of common eggs.