Ophthalmic imaging including radiographic imaging, acoustic imaging and optical imaging,as a branch of medical imaging has developed rapidly. Optical imaging is very suitable for fundus examination because of the physiological characteristics of the eye. Ophthalmoscope and fundus fluorescein angiography are two historical stages of fundus optical imaging, which become an independent new discipline now, including infrared fundus photography, fundus autofluorescence, fundus fluorescein and indocyanine green angiography and optical coherence tomography. Comprehensive optical imaging plays an irreplaceable role in the diagnosis and treatment evaluation of ocular fundus diseases. Appropriate understanding the principles and significance of various optical imaging methods is very important for their clinical applications.

Persistent infection of hepatitis C virus (HCV) remains as a worldwide threat to public health,which involves a complex interaction between virus- and host related factors.HCV is classified as six genotypes and many subtypes according to the sequence heterogenecity.HCV genotype should be determined prior to treatment initiation since it plays a key role in selection of therapeutic regimen for chronic hepatitis C.Development of the antiviral treatment with protease inhibitor in combination with pegylated IFN-α and ribavirin requires the accurate determination of subtypes,e.g. 1a and 1b,as well.Genotyping methods based onsequenceanalysis, reversehybridizationorreal-timePCRhavebeendevelopedand evaluated.Some issues,however,should be settled to standardize the utility and result interpretation of these methods.More recently,host genotypes of IL28B have been found to be closely associated with HCV spontaneous clearance and the response to antiviral therapy.Moreover,polymorphisms in inosine triphosphate pyrophosphatase gene affect ribavirin-induced anemia.Therefore, host genotyping will be beneficial in predicting the outcome of chronic hepatitis C and monitoring the drug-induced adverse events.

Four adults of Fasciola hepatica were found from the bile ducts of a patient diagnosed as biliary calculi during a surgi-cal operation. We investigated retrospectively the infection source and concluded that the patient may be infected by eating raw or half-cooked Zizania latifolia,an aquatic plant,which was contaminated with metacercariae of F. hepatica.

Objective To investigate the relationship between social support,coping style and general well-bing in armymen.Methods 280 armymen were tested by General Well-Being Schedule(GWB),coping style questionnaire and social support scale.Results There was a significant difference between the common soldiers and the other armymen(P<0.05);all the factor scores of GWB were related highly with all the factors of coping style and social support(P<0.05～0.01).Conclusion Coping style and social support in armymen are related to the general well-being.

Objective To study the drug resistance situation of Mycobacterium tuberculosis strains isolated from the patients with HIV/AIDS complicating tuberculosis (TB).Methods One hundred and ninety-six inpatients with AIDS complicating TB in our hospital from January 2012 to December 2015 were collected.The drug resistance situation of Mycobacterium tuberculosis strains cultured from sputum/tissue fluid/fiber liquid and pathological tissue submitted samples in the patients with AIDS complicating active TB was analyzed.The BACTEC MGIT960 systems was adopted to perform the bacterial identification.The drug sensitivity test was conducted by using 960 culture testing system.Results One hundred and ninety-six strains of Mycobacterium tuberculosis were cultured,the total drug resistance rate of Mycobacterium tuberculosis was 26.02％.These cases were divided into the ＞100/μL and ≤100/μL groups according to different CD4+ T cells count.The drug resistance situation of Mycobacterium tuberculosis to 4 kinds of first line anti-TB drugs were compared between these two groups.The comparison results found that the resistance rate of Mycobacterium tuberculosis strains to the first line anti-TB drugs had no statistical difference between the two groups (P＞0.05).The resistance rates of first line anti-TB drugs from high to low were isoniazid,rifampicin,streptomycin and ethambutol.The drug resistance rate of Mycobacterium tuberculosis strains to 5 types of drug resistant TB had no statistical difference(P＞0.05).Conclusion The drug resistance rate in the initial patients with HIV complicating TB is consistent with the average initial drugresistance level of TB patients in our country.The TB drug resistance rate in the patients with HIV complicating TB has no correlation with CD4+ T cells count.

ObjectiveTo explore the advantages and disadvantages of different local anesthetic subarachnoid block in patients with cesarean section.Methods120 patients to be in the spinal-epidural cesarean section down,were randomly divided into 3 groups(n =40):lighter than restructuring( Q group),so the proportion of(D),heavy weight ( Z group).Q Group:0.75 ％ bupivacaine 2ml + sterile water for injection 1ml,D group:0.75 ％ bupivacaine 2ml + CSF 1 ml,Z group:0.75％ bupivacaine 2ml + 10％ glucose,1 ml,2ml of each group were given(10mg).Characteristics in each group anesthesia,blood pressure,heart rate,complications and postoperative neurological effects were observed.ResultsThree groups made the same anesthesia,patients satisfaction with anesthesia had no significant difference.Z group was significantly improved compared with block group D and Q group( t =8.3,7.3,all P ＜ 0.05 ),Z group was the highest plane analgesia group than the high D and Q,Z group was significantly longer than the duration of sensory block and Q group(P ＜0.05),Z group and D duration of sensory block had no significant difference.Z group was significantly greater than the impact of the cycle Q and D groups.Anesthesia hypotension,nausea and vomiting,weight was significantly lighter than the restructuring,such as the proportion of high group.ConclusionCesarean section in the three groups in the proportion of different local anesthetic achieved the same anesthesia,and spinal anesthesia and other medication had the proportion of liquid single,and it was relatively simple,safe and more suitable for cesarean section anesthesia.

Aim To provide practical method for screening human carbonic anhydrase Ⅱ(hCA Ⅱ) inhibitors in drug discovery.Methods hCA Ⅱ protein was obtained from induced BL21(DE3) E.coli containing plasmid pET-28b-hCA Ⅱ.The hCA Ⅱ activity was detected under pH 7.6 and 25℃ by its esterase activity which could decompose PNPA to increase the photoabsorption at 348 nm. After the assay conditions were finally selected, 35 new compounds were tested.Results A practical method for screening hCA Ⅱ inhibitors was successfully constituted by using recombinant hCA Ⅱ protein expressed in E.coli as the source of hCA Ⅱ enzyme.10 new compounds had better inhibitory effect and 9 new compounds had the same inhibitory effect on hCA Ⅱ compared with acetazolamide.Conclusions The hCA II inhibitor screening technique constituted in this work possesses advantages of being reliable, rapid, and practical. 19 new compounds are worth further research for developing high efficiency and low side effect drugs used for high-altitude illness.

BACKGROUND: With the continuous renewal and development of clinical repair techniques, the intraoperatie blood loss has been greatly reduced in the treatment of intertrochanteric fracture; however, no matter what kind of repair methods should be adopted, there are stil a large amount of perioperative hidden blood loss, however, there are few clinical reports for the reasons and related factors. OBJECTIVE: To study the correlation of perioperative hidden blood loss with gender and internal fixation methods in the surgery of elderly femoral intertrochanteric fractures.METHODS: Total y 121 patients with elderly femoral intertrochanteric fractures who received the treatment at Department of Orthopedics, Nanyang City Center Hospital from March 2010 to June 2013 were divided into two groups according to the condition and treatment wishes of patients, and were respectively treated with dynamic hip screw and proximal femoral anti-rotation intramedul ary nail internal fixation. The preoperative hidden blood loss, postoperative hidden blood loss, the total hidden blood loss, dominant blood loss and total blood loss of patients in these two groups were compared. The multiple linear regression analysis on the correlation of perioperative hidden blood loss with gender and internal fixation methods was conducted. RESULTS AND CONCLUSION: There was no significant difference in the preoperative hidden blood loss between these two groups (P > 0.05). The total blood loss, postoperative hidden blood loss and total hidden blood loss in the proximal femoral anti-rotation intramedul ary nail group were significantly higher than those in the dynamic hip screw group (P < 0.05), and the dominant blood loss was significantly lower than that in the dynamic hip screw group (P <0.05). There were significant differences in the preoperative, postoperative hidden blood loss and total hidden blood loss between males and females (P < 0.05), and above indexes in males were significantly lower than in females. The multiple linear regression analysis showed that gender and internal fixation methods were correlated with hidden blood loss (P < 0.05). These results suggest that the perioperative hidden blood loss in surgery for elderly femoral intertrochanteric fractures is closely related to gender and above indexes in internal fixation methods. The perioperative hidden blood loss of male patients is less than that of female patients, and the patients treated with proximal femoral anti-rotation intramedul ary nail fixation have more hidden blood loss than dynamic hip screw fixation.

BACKGROUND:Proximal femoral locking plate and proximal femoral nail anti-rotation are the two common methods for the treatment of femoral intertrochanteric fractures in clinic. However, there were few randomized control ed trials on the comparison of both methods. Most of them are retrospective case analysis, and short of systematic evaluation. OBJECTIVE:To systematical y evaluate the clinical outcomes and safety between locking compression plate and proximal femoral nail anti-rotation for the treatment of the femoral intertrochanteric fractures. METHODS:The Cochrane Library (No.2 in 2015), PubMed(1966-01/2015-06), MEDLINE (1966-01/2015-06), EMbase (1984-01/2015-06), CNKI (1979-01/2015-06), VIP(1989-01/2015-06)and WanFang Data(1990-2015)were searched by computer. Meanwhile, relevant literature from the relevant journals and references were searched by hand. Al the randomized control ed trials concerning locking compression plate and proximal femoral nail anti-rotation for the treatment of the femoral intertrochanteric fractures were col ected. The literature was strictly filtered out according to the inclusion criteria, and was strictly evaluated for the quality. Meta-analysis on the included results was performed with RevMan5.2 software from the Cochrane col aboration. RESULTS AND CONCLUSION:There were 54 potential y relevant papers, and final y, 11 randomized control ed trials were eligible for this investigation. A total of 917 patients were included containing locking compression plate group (464 cases), proximal femoral nail anti-rotation group (453 cases). The Meta-analysis results showed that there were no significant differences in Harris scores, excel ent rate, complications, fracture healing time and hospital stays after treatment between the locking compression plate and proximal femoral nail anti-rotation groups. However, there were significant differences in the time of operation [MD=15.80,95%CI(7.57-24.04), P=0.000 2], peri-operative blood loss [MD=98.01, 95%CI(58.57-137.44),P<0.01], ambulation loading time [MD=8.07,95%CI(3.02-13.12),P=0.002], the length of incision [MD=6.90,95%CI(1.07-12.73), P=0.02] and postoperative drainage volume [MD=41.85,95%CI(23.77-59.93),P<0.01]. These results suggest that the treatment of proximal femoral nail anti-rotation had shortened the length of incision and the time of operation. The treatment of locking compression plate took more time of ambulation loading time, more peri-operative blood loss and postoperative drainage volume. Because the number of cases which this study included are few, and the fol ow-up time was shorter, we should design stricter large sample randomized control ed studies in future increase the strength of the evidence by conducting medium and long-term fol ow-up.

OBJECTIVE:To explore the effects of dehydroepiandrosterone(DHEA)combined with Meloxicam tablets on thera-peutic efficacy of osteoarthritis and biochemical indicator. METHODS:104 patients with osteoarthritis were randomly divided into ex-perimental group and control group with 52 cases in each group. Control group only received Meloxicam tablets,7.5 mg/time,bid;ex-perimental group was additionally given DHEA,25 mg/time,qd,on the basis of control group. The treatment course of 2 groups was four weeks. The clinical efficacy,VAS score before and after treatment,joint function score,levels of IL-1β and TNF-α,cartilage thickness,synovial thickness and score of liquid aggregation of joint cavity were compared between 2 groups. RESULTS:The total ef-fective rate of experimental group(86.54%)was significantly higher than that of control group(69.23%),with statistical significance (P<0.05);compared with before treatment,VAS scores of 2 groups decreased significantly after treatment,while joint function scores increased significantly,with statistical significance(P<0.05). VAS score of experimental group was significantly lower than that of control group,while joint function score was significantly higher than control group,with statistical significance(P<0.05). Af-ter treatment,the serum levels of IL-1βand TNF-αin 2 groups significantly decreased,with statistical significance(P<0.05);those of experimental group were significantly lower than those of control group,with statistical significance(P<0.05);there was no statis-tical significance in the cartilage thickness between 2 groups before and after treatment(P>0.05). Compared with before treatment, the thickness of the synovial membrane and the score of liquid aggregation of joint cavity significantly decreased after treatment,with statistical significance(P<0.05);the thickness of synovial membrane and the score of liquid aggregation of joint cavity in experimen-tal group were significantly lower than in control group,with statistical significance(P<0.05). CONCLUSIONS:DHEA combined with Meloxicam tablets is significant in the treatment of osteoarthritis,can significantly relief the pain and decrease the levels of serum IL-1βand TNF-α.