Objective To evaluate applicative value of laparoscopy in children for the diagnosis and treatment of non-palpable testes.Method We evaluated retrospectively the laparoscopic approach used in 16 boys for the diagnosis and treatment of 21 non-palpable testes. All of them were diagnosed by non-palpable testis before operation.Results 7 cases (11 testis) in the internal ring were mobilized laparoscopically, and the operation was completed by open orchidopexy. Agenesis or atrophy of the 6 testis in the inguinal region was found. 2 high intra-abdominal testis (left) were found. The testis had no found in the intra-abdomen in two cases.Conclusions Miniinvasive laparoscopy is considered at present the standard method for the localization and treatment of non-palpable testes. No serious complications were recorded during or after operation. It should be the preferred method for the non-palpable testes.

80%). The resulting bulk cultures were mainly comprised of a CD56~- subset of ??T cells. The expression of V?1, V?2 and V?3 gene families in the ex vivo multiplied ??T cells from TIL and PBMC of patients with NPC, and PBMC of normal control was demonstrated by RT-PCR. Conclusion The ??TIL of NPC can be multiplied in vitro for the first time. The subsets (V?1, V?2 and V?3) of ??T cells from PBMC of healthy individuals, PBMC and TIL of patients with NPC, can also be multiplied in vitro, and the experiment lays an experimental foundation of using ??T cells for the cellular adoptive therapy in patients with NPC.

Objective To study the preparation and the in vitro and in vivo release profile of GH-Chitosan-Alginate microcapsules.Methods GH-Chitosan-Alginate microcapsules were prepared through impulsive electrostatic technique.The interrelated factors influencing the diameter and sphericity were studied through orthogonal experiments,and finally the statistic analysis made sure the optimum conditions to prepare microspheres.The morphology and size of the microcapsules were observed,and the content,encapsulation efficiency and recovery efficiency of the microcapsules were measured.Moreover,their in vitro and in vivo release experiments were carried out.Results The results showed that the diameter of needle was the most significant factor to the diameter of microspheres.The optimum conditions for the least diameter of microspheres were 450?m diameter of needle,2cm from needle tips to the gelation surfaee,1.5% alginate concentration,8ml/h speed of flowing-liquid and metal containers.The microcapsules had good sphericity morphology and distribution.The size of the microcapsules was in the range of 10-25?m with an average size of 47.93?m.The encapsulation efficiency and GH-load of the microcapsules were 94% and 11.24% respectively.The release kinetics of microcapsules was studied in false gastric and intestines juice.In false gastric juice,the GH of microcapsules was not released;in false intestines juice,it was released well,and TAM was completely released after about 12h.in vivo release profile made sure that the serum GH level of GH microcapsule group was at the highest value(98.59ng/ml) at 8h.The release profile was fitted well in both in vitro and in vivo conditions.Conclusion GH-Chitosan-Alginate Microcapsules have good morphology and sustained release effect.

Objective To select an efficient ion exchange resin to purify the 60Co contaminated well-water for storing radioactive source and to ensure the radioactivity of 60Co in treated well-water below 10 Bq/L.Methods The radioactivity of 60Co in the water samples was measured by using the potassium cobaltinitrite coprecipitation-β counting method.The treatment efficiencies of two different ion exchange resins for the simulated 60Co-bearing waste water were compared to select a better one to dispose of the 60Co contaminated well-water.Results The treatment efficiency of MBD-15-SC mixed ion exchange resin was about 5.8 times higher than ZGCNR50 strong-acid cation exchange resin.The radioactivity of 60Co in the contaminated well-water could be reduced from 4.16 × 105 Bq/L to 1.16 Bq/L by two-stage sorption of MBD-15-SC mixed ion exchange resin.Conclusions Using several times of two-stage MBD-15-SC mixed ion exchange resin could effectively purify the 60Co contaminated well-water.The quality of the treated well-water could meet the sewage discharge standards.

Objective:This study aimed to investigate the expression levels of centrosome-associated kinase Aurora-A, mutant type P53 (mt-P53), and c-myc in colorectal cancer. This study was also conducted to investigate the mutual relationship and functions of these factors in tumorigenesis and tumor progression. Methods:We examined the pathological specimens obtained from colorectal cancer, pericancerous tissues, and normal colorectal tissues by tissue microarray technique and immunohistochemistry (SP method) to determine the expression levels of Aurora-A, mt-P53, and c-myc proteins. The clinicopathological parameters were then analyzed. Re-sults: The positive rates of Aurora-A expression in normal colorectal tissues, pericancerous tissues, and colorectal cancer were 0%, 35%, and 69%respectively;by comparison, the positive rates of mt-P53 were 0%, 20%, and 57%, respectively. For c-myc, the positive rates were 0, 37%, and 76%, respectively. The expression levels of Aurora-A, mt-P53, and c-myc were significantly higher in tumor tis-sues than in normal colorectal tissues and pericancerous tissues (P<0.01). Aurora-A overexpression was related to the depth of invasion (P<0.05). Mt-P53 and c-myc overexpression was related to the depth of invasion, lymph node metastasis, and Dukes' classification (P<0.05). A strong positive correlation was observed between the expressions of Aurora-A, mt-P53, and c-myc in colorectal cancer (r=0.362, P<0.01; r=0.487, P<0.01). A strong positive correlation was also observed between the expressions of mt-P53 and c-myc in colorectal cancer (r=0.242, P<0.01). Conclusion:The overexpression of Aurora-A and c-myc and the mutation of P53 were important in tumorigenesis, tumor invasion, and metastasis of colorectal cancer. Thus, the co-detection of Aurora-A, mt-P53, and c-myc may be useful for the early diagnosis and prognosis of colorectal cancer.

The numbers of application and granted funds for NSFC were analyzed statistically in Capital Medical University Affiliated Beijing Anzhen Hospital from 2009 to 2012.This paper retrospectively analyzed the development recurrent features of scientific research and put forward some suggestions.Meanwhile,it revealed the prospects of scientific research in our hospital.

OBJECTIVE To report a case of AIDS associated with penicilliosis marneffei and discriminate the morphology in bone marrow examination and cultural characteristic of Histoplasma capsulatum and Leishmania donovani.METHODS The three pathogens in bone marrow morphology and cultural characteristic were studied.RESULTS AIDS patient was often infected with P.marneffei,but we could differentiated easily from other pathogens because of its breeding by splitting up and the characteristis structure in bone marrow examination.CONCLUSIONS Isolation of the P.marneffei is the golden diagnosis standard,and the examination of bone marrow is important to diagnose P.marneffei infection.

Objective To study Tephroseris Kirilowii Turez.Houlub extract on cell cycle and apoptosis marker AnnexinV/PI of U266 in vitro..Methods U266 cells were cultured together with Tephroseris Kirilowii Turez.Houlub extract.Cell cycle and apoptosis marker AnnexinV/PI were detected by flow cytometry(FCM).Results After exposure of U266 cells to Tephroseris Kirilowii Turez.Houlub extract.the cell cycle distribution was changed.There Was a decrease of cells in the G0/G1 phase with an increase of cells in the S phase and G2/M phase and apoptosis.FCM with staining of Annexix V FITC/PI showed a dependence of apoptotic cells with the dosage of Tephroseris Kirilowii Turez.Houlub extract.Conclusion Tephroseris Kirilowii Turez extract has strong cell apoptosis effect on U266 cells.

Objective To analyze the changes of thyroid function of healthy primipara before 20 weeks of gestation to establish normal gestational age-specific reference interval of thyroid hormones,and to investigate the prevalence of maternal thyroid disorders during the first half of pregnancy.Methods A total of 1605 healthy primipara without risk factors of thyroid diseases before 20 gestational weeks and 200 non-pregnant healthy women who accepted pre-conception care in Beijing Friendship Hospital from September 2010 to June 2011 were tested for serum thyroid stimulating hormone (TSH),free thyroxine (FT4) and thyroid peroxidase antihody (TPOAb) by chemiluminometric immunoanalysis.One thousand two hundred and fourty-three pregnant women among them with negative thyroid antibooly and without previons thyroid diseases were selected as the standard population for normal interval.Gestational age-specific percentile categories for TSH and FT4 were calculated.The prevalence of maternal thyroid disorders was examined by gestational agespecific intervals.Results (1) Compared with non-pregnant women,the median value of serum TSH in pregnant women decreased by 29.56％ to the value of 0.91 mU/L; while that of FT4 rose by 7.79％ to the value of 11.33 pmol/L before 12 weeks; and TSH increased while FT4 decreased during 13 to 20 weeks.(2) The median values and reference intervals (2.5th percentile,97.5th percentile) for TSH were 1.59 mU/L (0.15 mU/L,5.19 mU/L) in no-pregnant women,1.12 mU/L (0.03 mU/L,3.67 mU/L) at 8-12+6 gestational weeks,1.21 mU/L (0.05 mU/L,3.74 mU/L) at 13-16+6 gestational weeks,1.50 mU/L (0.31 mU/L,4.33 mU/L) at 17-19+6 gestational weeks; and the median values and reference intervals (2.5th percentile,97.5th percentile) for FT4 were 9.91 pmol/L (6.69 pmol/L,14.03 pmol/L),10.68 pmol/L (7.98 pmol/L,18.66 pmol/L),10.04 pmol/L (6.18 pmol/L,16.22 pmol/L),9.40 pmol/L (6.44 pmol/L,13.51 pmol/L) respectively.(3) According to gestational age-specific reference intervals,the general prevalence of maternal thyroid disorders,including hyperthyroidism,hypothyroidism,subclinical hypothyroidism and hypothyroinemia,was 3.55％ (57/1606).At 8-12+6 gestational weeks,13-16+6 gestational weeks and 17 19+6 gestational weeks,the occurrence of hyperthyroidism was 0.00％,0.13％ and 0.00％;that of hypothyroidism was 0.00％,0.13％ and 0.00％; the incidence of subclinical hypothyroidism was 3.60％,2.76％ and 3.00％; the occurrence of hypothyroxinemia was 0.16％,0.26％ and 0.86％,respectively.The positive rate of TPOAb at 8-12+6,13-16+6 and 17-19+6 gestational weeks were 22.91％ (140/611),16.56％ (126/761) and 15.45％(36/233),and the total positive rate of TPOAb was 18.82％ (302/1605).The median level of TPOAb was 38.90,41.87 and 39.10 mU/L,respectively.Conclusions Before 20 gestational weeks,specific changes occur in maternal thyroid function.TSH level decreases during 8 to 12 gestational weeks,and then increases gradually; while FT4 level increases during 8 to 12 weeks,and then decreases gradually.Thyroid dysfunction during pregnancy is common and subclinical hypothyroidisum is the leading problem in thyroid disorders.Screening for thyroid function during early pregnancy is suggested.