17-allylamino-17-demethoxygeldanamycin (17-AAG) is a heat shock protein 90 ( HSP90) inhibitor. It is capable of target-inhibiting tumor-derived HSP90, leading to the depletion of on-cogenic client proteins which play key roles in several signal transduction pathways. Then cell growth and differetiation are inhibited. 17-AAG results in cytostasis and apoptosis. A lot of trials have indicated that 17-AAG is a selective target drug for cancer therapy. It can efficiently inhibit multiple signal transduction pathways involved in tumor cell proliferation and survival. Clinical phaseⅠand phaseⅡtrials have shown that 17-AAG has good pharmacokinetic-pharmacodynamic profile. Moreover, it can combine with radiation and the traditional chemotherapeutics and increase the therapeutic efficacy.

Objective To study the impact of the number of functional natural teeth (FNT) and different oral restoration behaviors on well-being of the elderly.Methods The elderly residents of Guangzhou Haizhu District were acted as respondent,WHO-5 Scale was the measurement instrument of well-being.Analysis of covariance was used to correct confounding factors and analyze the corrected data,and then it was compared by LSD Test.Resuits (1) The results of analysis of covariance showed that,average scores on WHO-5 Scale were not all the same among different groups which were divided by different number of FNT or different oral restoration behaviors (Respectively:F=21.547,P＜0.001 ; F=141.219,P＜0.001).(2) The results of LSD Test showed that,although there were no statistical differences in corrected average scores between group with 5-9 FNT and group with 10-14 FNT (LSD-t=-0.536,P=0.593),differences had statistical senses between other groups(P＜0.01).All scores were ordered from the least to the most number of FNT,and they were (11.786±5.270),(15.724±4.036),(15.934±3.957),(18.941±2.616) and (23.390±6.951) respectively.It also showed that,there were no statistical differences in corrected average scores between the perfect oral restoration behavior group,the imperfect oral restoration behavior group and the no oral restoration behavior group(respectively:(23.056±4.772),(20.647±2.660),(14.872±7.313) ; P＜0.01).Statistical differences were also found in corrected average scores between the imperfect oral restoration behavior group and the abnormal oral restoration behavior group (respectively:(20.647 ±2.660),(14.565±2.914);LSD-t=13.108,P＜0.01).No statistical differences were found in corrected average scores between the no oral restoration behavior group and the abnormal oral restoration behavior group(respectively:(14.872±7.313),(14.565±2.914) ; LSD-t=-0.696,P＜0.01).The differences in corrected average scores between the needless oral restoration behavior group and the perfect oral restoration behavior group also showed no statistical significance (respectively:(22.848± 8.068),(23.056± 4.772) ; LSD-t =-0.340,P =0.734).Conclusion Well-being of the elderly may be associated with number of FNT and oral restoration behaviors.

This essay is to make brief comments on the physical characteristics, biocompatibility, corrosion resistance, clinical information, existent problems of endovascular stent biomaterials and the developing tendency in future.
Angioplasty ; instrumentation ; Biocompatible Materials ; Stents

Histiocytosis, Langerhans-Cell ; Humans

This essay is to make brief comments on the Nitinol vascular stents fatigue lifetime requirements, finite element analysis and fatigue lifetime tests etc.
Alloys ; Blood Vessel Prosthesis ; Finite Element Analysis ; Materials Testing ; Stents

Streptomyces sp. A048 was cultured in a complete medium to the last stage of log phase,the hyphae were washed and collected by centrifugation. Then the hyphae were inoculated in liquid medium for chitinase production using two-step fermentation. Activity of chitinase produced by two-step fermentation was 1.1 times higher than that from one-step fermentation,and ferment cycle was for 54 hours,which was 66 hours shorter than that of one-step fermentation. The hyphae and the powder of chitin were co-immobilizated and cultured in liquid medium for 36 hours,activity of chitinase was 1.8 times higher than that from one-step fermentation,and ferment cycle was 54h shorter than that of one-step fermentation. By adding 0.4% cellulose to two-step fermentation,activity of chitinase was 18.52 U/mL that was 4 times higher than that from the control and 10 times higher than that from one-step fermentation. Two step fermentation with chitin and cellulose may be the optimal fermentation process to produce Chitinase from Streptomyces sp. A048.

AlM: To study the clinical effect of the application of microscopic pterygium resection combined with different concentration of mitomycin C ( MMC) .
METHODS:A total of 110 cases of pterygium patients (120 eyes) were randomly divided into control group (58 eyes) and observation group (62 eyes) according to the odd and even number method. The control group adopted the pterygium resection combined 0. 3mg/mL MMC, and the observation group was given pterygium resection combined 0. 2mg/mL MMC. The cure rate and the recurrence rate, eyesight before and after the treatment, two groups of cornea and sclera wound healing situation, the incidence of postoperative complications were compared.
RESULTS: The cure rate and recurrence rate of the control group was 84. 5% and 15. 5% respectively, and the observation group was 93. 6% and 6. 5% respectively, the differences were statistically significant (P<0. 05). There were statistical differences of vision of the two groups before and after treatment (P<0. 05), and there were no statistical differences of the two groups between the two groups after treatment (P>0. 05). The cornea, sclera, wound healing time of the observation group were less than the control group, and there were statistical differences between the two groups ( P < 0. 05 ). The incidence of complications was 13. 8% in the control group and 3. 2% in observation group, with statistically significant difference (P<0. 05).
CONCLUSlON: The application effect of microscopic pterygium resection combined with MMC is remarkable, and the joint of 0. 2mg/mL concentration of MMC is more safe and effective, and is worth popularizing in clinical application.

0.05). Conclusion There is abnormal thyroid function in patients with anorexia nervosa. Most of the patients with anorexia nervosa are individuals with low T3 syndrome, rather than hypothyroid. Since this syndrome is reversible, thyroxine is not necessary during the treatment.

Objective:Clinicopathological features, treatment and prognosis of urinary and male reproductive system soft tissue sarcoma (STS) and sarcomatoid carcinoma in adults were compared.Methods:A retrospective analysis was performed on the clinical data of 73 patients with STS and 15 patients with sarcomatoid carcinoma in adult urinary and male reproductive system in the First Affiliated Hospital of Zhengzhou University. There were 59 males and 14 females in STS group, with a median age of 41 (18-78)years old. The maximum tumor diameter ranged from 0.5 to 19.0 cm. The primary tumors were located in testis and peritesticular (23 cases), kidney (23 cases), prostate (15 cases), bladder (8 cases), ureter(3 cases), other parts(1 case). There were 18 cases of lymph node metastasis and 8 cases of distant metastasis. Among 73 patients with STS, 66 patients underwent surgical resection, of which 31 patients underwent radical resection. Among the 66 patients who underwent surgery, 3 patients received neoadjuvant chemotherapy; 22 patients received adjuvant chemotherapy; 5 patients were treated with adjuvant radiotherapy. Among 7 patients with STS did not receive surgical treatment, 2 patients received radiotherapy combined with chemotherapy, 2 patients received chemotherapy alone, and 3 patients received symptomatic support treatment.There were 11 males and 4 females in sarcomatoid carcinoma group, with a median age of 65 (23 - 84)years old. The measurable tumor diameter ranged from 0.4 to 16.9 cm. The primary tumors were located in kidney (6 cases), bladder (5 cases), ureter(2 cases) and prostate(2 cases). There were 2 patients of lymph node metastasis and 4 patients of distant metastasis. Of the 15 patients with sarcomatoid carcinoma, 12 patients underwent surgical resection, of which 5 patients underwent radical resection. 2 patients were treated with adjuvant therapy after operation. Among the 12 patients who received surgical treatment, 2 patients had distant metastasis before operation, all of which originated from the kidney. Among the 3 patients without surgical treatment, 1 patients received systemic chemotherapy and 2 patients received symptomatic supportive treatment. There was no significant difference in gender, tumor maximum diameter, distant metastasis and operation, chemotherapy, radiotherapy and operation combined with chemotherapy ( P>0.05) and there were significant differences in age, tumor primary location and lymph node metastasis ( P<0.05) between STS and sarcomatoid carcinoma patients.The categorical variables of the two groups were compared by χ2.With Kaplan-Meier method for univariate survival analysis, the Cox was used for multivariate analysis. Results:The median follow-up time was 18.3(0.3-90.4) months.In STS group, there were 14 patients of synovial sarcoma, 11 patients of liposarcoma, 15 patients of rhabdomyosarcoma, 16 patients of leiomyosarcoma, 10 patients of other types, and 7 patients of spindle cell sarcoma without specific classification. Among 66 patients with STS, 8 patients recurred, 14 patients metastasized after operation, 4 patients recurred and metastasized after operation. The 7 patients without surgical treatment all progressed. Among the 10 patients of sarcomatoid carcinoma without distant metastasis before operation, 3 patients recurred and 3 patients metastasized after operation. Two patients of renal sarcomatoid carcinoma with distant metastasis were treated with nephrectomy and chemotherapy. One of them had overall survival (OS) up to 2 years, and one recurred 2 months after operation. The 3 patients without surgical treatment all progressed without remission. The median OS of STS patients were 59.3 (95% CI 24.1-94.5) months and that of sarcomatoid carcinoma patients were 8.7 (95% CI 6.1-11.2) months. The OS of STS patients were better than those of sarcomatoid carcinoma patients ( HR=2.874, 95% CI 1.118-7.386, P=0.022). Conclusions:The onset age of STS in adult urinary and male reproductive system was lower than that in sarcomatoid carcinoma. The primary lesions of STS were mainly in testis, peritesticular and kidney. The primary lesions of sarcomatoid carcinoma were mainly in kidney. Among STS, leiomyosarcoma was the most common type.STS and sarcomatoid carcinoma should be diagnosed and treated with surgery quickly, and systemic therapy should be performed for patients who cannot be treated with surgery.

OBJECTIVETo investigate the safety and effectiveness of HLA-mismatched allogeneic hematopoietic stem cell transplantation (allo-HSCT) combined with related haploidentical bone marrow infusion for treatment of hematologic malignancies and to explore the mathod for reduction of aGVHD incidence and clinical significance.

METHODSA total of 30 patients with hematologic malignancies (8 cases of AML, 17 AML, 2 MDS and 3 Mix-AL) received related haploidentical and unrelated HLA-mismatched allo-HSCT combined with related haploidentical bone marrow infusion. Among them 20 cases received related haploidentical transplantation of the first donor, 10 cases received unrelated HLA-mismatched treaplantation. The new conditioning regimen for the patients underwent allo-HSCT consisted of fludarabine, busulfan, Me-CCNU and cyclophosphamide. The drugs for GVHD prophylaxis included cyclosporine A and methotrexate, while mycophenolate mofetil and rabbit anti-T-lymphocyte globulin (ATG) were used.

RESULTSAll the patients achieved full engraftment. The median time for neutrophils to reach over 0.5 × 10(9)/L was 14 days (8-26 days), while the median time for platelets to reach over 20 × 10(9)/L was 11.5days (10-24 days). The incidence of I-II grade of aGVHD at 100 d was 22.28% (95% CI 9.9%-34.7%), the incidences of II-IV and III-IV grade of aGVHD were 22.7% (95% CI, 10%-35.4%) and 12.7% (95% CI 6.9%-15.5%) respectively. The incidences of I-II and III-IV cGVHD were 13.3% (95% CI, 1.4%- 26.8%) and 3.3 % (95% CI, 0%-12.2%), one case (3.3%) was in extensive cGVHD. DFS and OS of 2 years were 81.1% (95% CI, 66.0%-96.2%) and 68.2% (95% CI 51.0%-85.4%).

CONCLUSIONThese data suggest that the incidence of grade II-IV grade of aGVHD in recipients of 2 partially HLA-matched units was lower, co-infusion of haplo-BM and partially matched units in allogeneic transplantation is safe and effective for reducing the incidence of aGVHD and improving the survival in DFS.

Antilymphocyte Serum ; therapeutic use ; Busulfan ; therapeutic use ; Cyclosporine ; therapeutic use ; Graft vs Host Disease ; prevention & control ; HLA Antigens ; genetics ; Hematologic Neoplasms ; therapy ; Hematopoietic Stem Cell Transplantation ; Humans ; Incidence ; Leukemia ; therapy ; Mycophenolic Acid ; analogs & derivatives ; therapeutic use ; Stem Cell Transplantation ; Tissue Donors ; Transplantation Conditioning ; Transplantation, Homologous ; Vidarabine ; analogs & derivatives ; therapeutic use