Sentinel lymph node biopsy has been an important part of breast cancer surgery,which includes reactive dye method,radionuclide method and the combination of both. However,the radionucli-ded tracer is not approved domestically,which limits its clinical application. Near-infrared fluorescent method depends on near-infrared light. It activates indocyanine green to produce fluorescence and then flu-orescent image device can be used to observe the lymphatic system,which is a real time and dynamic de-tection for lymphangion and lymph node. Furthermore,the definite incision site can be located,which less-ens the damage of tissues. The fluorescent method can avoid some disadvantages of the above methods. However,the shadowless lamp should be turned off during the operation,which prolongs the operation time. Due to the quenching effect,the brightness of fluorescence will attenuate and the detected depth will be limited. Combination of near-infrared fluorescence method and reactive dye method may improve the detection,but further large-scale clinical trials are required for confirmation.

Drug Delivery Systems ; Humans ; Multiple Myeloma ; drug therapy ; genetics

Hedgehog( Hh)signaling pathway is evolutionarily conserved in vertebrates,its excessive activation is associated with abnormal cell differentiation, over proliferation, apoptosis resistance and promotion of invasion and metastasis of tumor cells. Hh signaling pathway involves in the formation and maintenance of esophageal columnar epithelium in embryonic stage,however,undetectable or barely expressed in matured esophageal squamous epithelium. Studies have shown that esophageal Hh signaling pathway can be activated by gastric acid and bile salts. Aberrant activation of Hh signaling pathway can cause the gradual transition of squamous epithelium to columnar epithelium and intestinal-type epithelium,ultimately induces the occurrence of Barrett’s esophagus( BE). Therefore,targeted inhibiting the Hh signaling pathway may be a new strategy for the treatment of BE. This article reviewed the advances in study on Hh signaling pathway in the pathogenesis of BE.

Objective To explore the cognitive function,feature of P 300 event-related potentials and the relationship of them in children with epilepsy.Methods Auditory P 300 was measured by oddball paradigm and intelligence quotient was tested by WSIC-RC in 38 children with epilepsy.Results 1. The rates of FIQ less than normal IQ were 65.8 %, impaired intelligence 28.9 % in patient group. 2.The latencies and the amplitudes of P 300 were significantly delayed and decreased respectively in both patient groups (P

Cerebral infarction is not only a focal damage,but also causes secondary damage in areas remote from the ischemic territory,which will retard the recovery of neurological function.Ephrin receptor B2 (EphB2) plays an important role in the development and repair mechanism of central nervous system.Blocking the effect of EphB2 in brain by using a specific inhibitor may enhance proliferation and migration of endogeneous neuronal stem cells after experimental cerebral infarc- tion,improve neurological function and influence angiogenesis and neuroplasticity in remote sites.It is expected to become a new approach for decreasing damages in areas remote from the cerebral infarction and promoting the recovery of neurological function.

Objective To synthesize soybean isoflavones, and their 7-alkaline analogues and to evaluate their uterotrophic activities and anti-uterotrophic activities preliminarily. Methods The target molecules were synthesized by multi-step from resorcinol and p-substituted phenylacetic acid as the starting material. Their uterotrophic activities and anti-uterotrophic activities were evaluated by female mouse at the concentration of 1.1?10 -2 ?mol/ml and 1.85?10 -3 ?mol/ml. Results Twenty-two compounds were synthesized, among which 4 intermediates and 12 isoflavones are new compounds. Conclusion All the target molecules except for 6a show weak uterotrophic activities and high anti-uterotrophic activities.

Objective To evaluate the usefulness of MRI in the diagnosis of adenomyosis. Methods Sagittal Turbo SE T 1WI, T 2WI, T 1SPIR and T 2SPIR MRI examination were performed on 30 cases with adenomyosis. Results The lesions in 12 cases with diffuse adenomyosis were demonstrated as diffusely thickened junctional zone (JZ) measured 10～35 mm (mean 18 mm) On T 2WI. 6 of them were of homogenous hypointensity. Another six had hyperintensive foci within the hypointensive lesions on T 2WI, and these hyperintensive foci could also be found on T 1WI in 5 lesions. 23 focal lesions (adenomyomas) in 18 cases were oval, irregular or round masses with hypointensity that were the same as the intensity of JZ on T 2WI. They were from 2.0-7.5 cm in diameter (mean 3.9 cm), and all but one showed ill-defined margins. 15 masses hadhyperintensive foci within the hypointensive lesions on T 2WI and 12 of 15 presented hyperintensity on T 1WI. The diffusely thickened JZ and focal masses correspond to the hyperplastic and hypertrophic musculature around the heterotopic endometrial islands. The hyperintensive foci were correlated with the heterotopic endometrial islands. The hyperintensive foci showed only on T 2WI corresponded to the heterotopic endometrial islands without hemorrhage. The hyperintensive foci shown on both T 2WI and T 1WI were the heterotopic endometrial islands with hemorrhage. Conclusion MRI is the modality of choice for the diagnosis of adenomyosis. T 2WI is the most useful sequence. T 2WI combining with T 1WI, T 1SPIR, and T 2SPIR can improve the accuracy in the diagnosis of adenomyosis.

Based on the gene sequence of AIV matrix protein 2(M2) and two cytotoxic T-lymphocyte epitopes derived from nucleoprotein,the prokaryotic expression vector pET-3M2e-NP1-NP2 was constructed.The target gene was expressed in the solvable form in BL21(DE3) when induced with 1.0 mmol/L IPTG and Western blot analysis showed that the expression product had good immunogencity.Purified fusion protein was mixed with various amount of adjuvant,including Freund's,Vash oil and chitosan,and then immunized 20-day-old chicken by intramuscular injection and boosted 3weeks later.Blood samples were collected weekly following the primary vaccination.The anti-M2e antibody was detected with ELISA method with the synthesized peptide as coated antigen;the neutralizing ability of anti-serum was evaluated on MDCK cell line and chick embryo,the CD4+ and CD8+ T lymphocyte amounts in peripheral blood of immunized chicken was measured by flow cytometry.Results showed that the fusion protein can induce immunological reaction,and the antibody can bind with the viral M2 protein that expressed on the surface of MDCK cells.Flow cytometry result showed that CD4+ and CD8+ T lymphocyte in peripheral blood increased obviously following immunization(P

M2e gene of three copies for H5N1 subtype AIV was synthesized and fused with human mycobacterium tuberculosis hsp70 gene.The fused gene was cloned into the prokaryotic expression vector to get pET-3M2e and pET-3M2e-hsp70.Recombinant protein r3M2e and r3M2e-hsp70 were successfully expressed induced with IPTG and purified with Ni2+-NTA collumn.Following that,the immunity of the recombinant protein was analysized with Western blot.20-day-old AIV non-immunized chickens were vaccined with r3M2e and r3M2e hsp70,at the same time,Trx and KLH-M2e inoculated chickens were served as vector and positive controls.Two weeks after the primary vaccination,every group was boosted with the same vaccine as in the primary vaccination.The humoral immunity of the vaccined chickens was evaluated with antibody detection against M2e,cytopathic suppression test,and indirect fluorescence assay.The cellular immunity was estimated according to lymphocyte subtype analysis with flow cytometry and M2e specific cytokine detection.Four weeks after the boost vaccine,all groups were challenged with 100EID50 AIV of H9N2 subtype,and the virus from swabs was detected with Real-time PCR.Results indicated that r3M2e hsp70 vaccined chicken developed the better humoral and cellular immune response,also,made a better performance compared with r3M2e vaccined group in virus challenge.

Animals ; Drugs, Chinese Herbal ; pharmacology ; Hematopoietic System ; drug effects ; Male ; Physical Conditioning, Animal ; Rats ; Rats, Wistar