This paper reports 25 cases of meatoci-sternography, six cases of acoustic neuromas were diagnosed by it. Among them. 4 cases were of small type and 2 cases, medium Meatocisterncgraphy was compared with CT/ air cisterhography in 8 cases. Our prelimi nary experience shows that meatocisternography is a safe, objective method, with a high distiguishable rate; The diagnosis is trutworthy. The makes small acoustic neuromas and microstructure clearer than CT/ air cisternography in the internal auditory canal. This examination is a very accurate and useful method for detecting small acoustic neuromas and offers more information for other diseases in the internal auditory canal.

Objective To propose a new classification scheme of otitis media (OM). Methods By reviewing current internat ional classification systems of OM, we analyzed their disadvantages and the prog ress made in histopathologic studies of OM, then worked out a new classification scheme to apply it to clinic. Results In current internati onal classification systems of OM, those apparent clinical signs are regarded as main standards of classification. Their main disadvantage is that these signs c annot very well indicate the condition of pathologic and functional changes of i mportant hearing structure areas. We proposed a “Three-stage Scheme” of OM cl assification and applied in 1 160 cases of OM. The accuracy rate of diagnosis w as 82.4% in 348 cases of early-stage OM, 98.4% in 696 cases of chronic OM, and 95.2% in 116 cases of OM sequela. Conclusion The “Three-s tage Scheme” system is scientific, simple and practical. Its accuracy rate of d iagnosis is very high. It plays a guiding role in diagnosis and treatment of OM.

Objective To obtain a simple method to isolate and purify spermatogonia stem cells. Methods The testis of newborn mouse were digested by modified two step digest method, and the type A spermatogonia cells were separated by different adhesive time with Sertoli cells. Results High concentration (95%) purified type A spermatogonia cells were acquired, and the spermatogonia transplanting experiment demonstrated the efficiency of the method.Conclusions This method is easy and efficient to isolation and purification of spermatogonial stem cells.

Objective To study the synergism effect of 131 I-Herceptin and high-energy X-ray on HER2 overexpressed breast cancer SK-BR-3 cells.Methods The protein expression and gene amplification of human epidermal growth factor receptor-2 ( HER2 ) in SK-BR-3 cells were identified by immunohistochemistry and fluorescence in situ hybridization ( FISH ) method, 131 I-Herceptin was prepared by iodogen method, and the IC15 concentration of 131 I-Herceptin on SK-BR-3 cell were selected by MTT method.The cells were divided into control group and drug group according to 131 I-Herceptin used or not, and were delivered five different doses of external irradiation (0,2,4 and 6Gy), and the synergism effect was detected by colonogenic assay.The cells were divided into blank group, drug group(131I-Herceptin), X-ray group(2 Gy external irradiation) and combination group (131I-Herceptin+2 Gy external irradiation), the apoptosis rate and death rate were detected by AO/EB method and cell cycle were detected by flow cytometry.Results The labling rate, radiochemical purity and specific radioactivity of 131 I-Herceptin were 86.8%, 93.9% and 868.3 μci/mg, respectively.The IC15 of 131 I-Herceptin was 15.625μci/mL.131 I-Herceptin and high-energy X-ray significantly reduced surviving fraction ( SF) ( F=628.888,F=964.97,P<0.05) and there were interactions between them (F=113.046,P<0.05).There were significant differences in apoptosis rate and death rate among blank group, drug group, X-ray group and combination group(F=103.324,F=13.33,all P<0.05),and there were significant differences of pairwise comparison (P<0.05).After irradiation and 131I-Herceptin administration, the cell cycle changed obviously from G1-phase to G2-and S-phase.Conclusion 131 I-Herceptin combined with high-energy X-ray has the synergism effect on HER2 overexpressed breast cancer SK-BR-3 cells.

Objective To explore the high-resolution CT manifestation of chronic otitis media with cholesteatoma. Methods clinical and high-resolution CT manifestation of 31 cases of chronic otitis media with cholesteatoma were analyzed. All the cases were confirmed by operation and pathology. Results High-resolution CT can accurately show the signs of soft-tissue occupancy and bony-erosion of cholestcatoma in middle ear which originate from various sites and of various sizes.confirmed by operation, accuracy were as high as 93.5%-100% . Conclusion high-resolution CT is extremely accurate in diagnosis of chronic otitis media with cholesteatoma.

Objective To increase stone-breaking efficiency by improving waterway system of extracorporeal shock wave lithotripsy. Methods A water-storing bag, which possessed warm-up function and was filled with anticorrosive and antirust no-air water, and a sealed water tank were added to water-entering pipeline of shock wave generator. Water pressure pressing water-storing bag was utilized to control no-air water to be filled into shock wave generator to minimize bubble forming in shock wave outer conduct passway. Meanwhile, a temporary water-storing tank and a single-directed valve were added between pipelines and water-storing bag. Results After improving, lithotripsy could recycle no-air water to be filled into shock wave generator. It not only increased shock wave conducting and stone breaking efficiency, but also decreasee air content in shock wave generator and outer conduct passway, and decreased bubble forming, thus reducing complication in more rational procedures. Conclusion The method of improving waterway system of extracorporeal shock wave lithotripsy is simple, cheap, effective and worth popularizing.

Objective To explore the feasibility and superiority of the simplified partial pressurized tourniquet used in bleeding or injured limbs in battlefield.Methods The tourniquet was composed of the disposable infusion bag,bulb for blood pressure apparatus,pressure gauge and heparin cap.The disposable infusion bag wrapped around the bottom of the cravat took the places of the balloon and the harness.The pressure on the upper and lower limbs were 180mmHg and 200mmHg respectively.Results The low-cost tourniquet,with easily adjustable pressure,was easy to operate and carry.It was efficient in hemostasis and had a low rate for complications.Conclusion The tourniquet can be applied to self and buddy aid,and thus the incidence of shock can be decreased.

Successful assessing intestinal lumen content with ultrasound signals might lay a strong basis for the development of the artificial anal sphincter. In the present study, we utilized a modified MLU02-212 ultrasonic gas bubble detector to test the distal part of proximal colon in each rabbit, for the group of twenty healthy New Zealand rabbits. Voltage signals of solid, liquid, gas and empty content of the lumen were collected and compared. The results indicated that there were significant differences among the voltage signals in the 4 conditions (P = 0.000), respectively. Multiple comparison showed significant differences existed in any pair of the four conditions (P = 0.000). Three signal non-overlapping regions existed in these 4 conditions. Thus it seemed that ultrasound could be utilized to distinguish various contents inside the intestinal lumen and could act as "artificial sensory nerve".
Anal Canal ; innervation ; physiology ; Animals ; Artificial Organs ; Colon ; diagnostic imaging ; Enteric Nervous System ; physiology ; Fecal Incontinence ; surgery ; Female ; Gastrointestinal Contents ; Gastrointestinal Motility ; physiology ; Male ; Rabbits ; Sensory Receptor Cells ; physiology ; Ultrasonography

Aim To investigate the effects of Cichorium glandulosum N-butanol extraction site (C G E) on hepatic fibrosis (H F) in SD rats and to determine the content of the main effective component matricin. Methods HPLC method was used to determine the content of matricin in CGE. The SD rats were randomly divided into control group, model group, CGE low-dose groups, medium-dose and high-dose, and curcumin group. In addition to control group rats' back subcutaneous injection (s c) normal saline, rats in the other groups were treated with body weight sc 40 % CC1

Aim To investigate the anti-inflammatory effect of L-Shikonin ( SK ) on lipopolysaccharide ( LPS)-induced RAW 264. 7 macrophages in vitro and its protective effect on LPS/D-GalN-induced acute liver injury. Methods The mouse model of acute liver in¬jury was established in vivo experiments by LPS/D- GalN. The survival rate of the mice and the changes of liver and spleen indices in each group were examined. The levels of AST, ALT and AKP in serum and NO, superoxide dismutase ( SOD ) and malondialdehyde (MDA) in liver tissue homogenate were measured, and the histopathological sections of the liver of each group were observed by H&E staining. M I T colorimet- ric assay was used for cell viability in vitro experi¬ments, Griess method for the detection of NO content, RT-PCR assay and Western blot assay for examining the effect of levulinic acid on the expression levels of mRNA and related pathway proteins of pro-inflammato¬ry factors in LPS-induced RAW264. 7 cells. Results The results of in vivo experiments showed that L-SK significantly improved the liver and spleen indices, de¬creased AST, ALT and AKP levels in serum, de¬creased NO and MDA in liver homogenate, and in¬creased SOD activity in mice with acute liver injury. The results of in vitro experiments showed that L-SK significantly inhibited the mRNA expression of INOS, COX2, I FN-(3 and pro-inflammatory factors 1L-6, TNF-a and IL-10 in LPS-induced RAW264. 7 cells, and significantly inhibited the protein expression of IN¬OS, COX2 and the NF-kB signaling pathway. Conclu¬sions L-SK has good anti-inflammatory effects in LPS-induced inflammation in RAW 264. 7 cells in vitro. Il inhibits the protein expression of phosphorylated P65 and IKKaαβ in the NF-kB signaling pathway, thereby suppressing the anti-inflammatory effects in vitro and L- Shikonin has protective effects against acute liver injury in mice.