Objective To investigate the effect of tadpole extract(T871 3) on tumor cells and its mechanism. Methods We studied the effects of T871 3 on proliferation, differentiation and apoptosis of HL 60 cells by cytomorphological observation, cytochemistry and TUNEL method. We also examined gene expression during the induction of apoptosis and differentiation in tadpole extract treated HL 60 cells by in situ hybridization and intact cell mRNA dot blot techniques. Results 1 T871 3 was able to inhibite HL 60 cells proliferation. 2 T871 3 was able to induce HL 60 cells to differentiate along monocyte macrophage lineage at low concentration, and apoptosis at higher concentration. 3 The differentiation of HL 60 cells was accompanied by downregulations of c myc,c myb gene expression, The apoptosis of HL 60 cells was accompanied by downregulations of c\|myc bcl 2 gene expression, suggesting that these genes may be involved in the apoptosis and differentiation process. Conclusion Tadpole extract may have effects on HL 60 cells through changing the oncogene expression. [

Background and purpose:The epidermal growth factor receptor (EGFR) is commonly overexpressed in a variety of solid tumors, and has important roles in cancer pathogenesis and progression. EGFR thus provides a rational target for cancer therapy. We studied siRNA-mediated inhibition of epidermal growth factor receptor expression and its biologic effects in different human cancer cell lines (A431, HeLa and SPC-A-1). Methods:Cells were transfected with chemically synthesized siRNA-EGFR. EGFR mRNA was quantified by real-time PCR and was detected by immunofluorescence staining and flow cytometry. The biologic effects on cell growth were assessed by colony-formation assay.Results:siRNA-EGFR significantly decreased mRNA level of EGFR by 73.9 %, 44.6 % and 57.7 %, protein expression of EGFR by 77.0 %, 61.3 % and 65.2 %, and reduced colony number by 27.2 %, 53.9 % and 59.1 % in A431, HeLa and SPC-A-1, respectively.Conclusions:Our data suggested that RNA interference could downregulate EGFR and inhibit colony forming ability and EGFR expression at mRNA/protein levels in human cancer cell lines with different pathological types. siRNA could be one of the promising strategies in future targeted cancer therapy.

The effects of amiodarone on transmural dispersion of ventricular effective refractory periods (ERPs) in the normal and hypertrophic canine heart were investigated in vivo. By using the programmed stimulation protocol, the ERPs of epicardium (Epi), midmyocardium (Mid) and endocardium (Endo) were measured by inserting specially-designed electrodes into the three myocardial layers before and after mainlining of amiodarone. No significant ERPs-dispersion was observed in the three layers before and after mainlining of amiodarone in the normal group. In contrast, ERPs of all the three layers were prolonged in the hypertrophic heart, while the ERPs-dispersion was reduced significantly after mainlining of amiodarone. The ERPs-dispersion was significantly increased in the hypertrophic heart but not in the normal heart using "long-short" and "short-long" interval stimulation technique. It was concluded that (1) the differences in ERPs-dispersion among the three layers were significant in hypertrophic heart, and differences were not significant in normal canine heart; (2) ERPs of each three-myocardial layers were significantly prolonged after using amiodarone, but the ERPs-dispersion decreased in hypertrophic heart and (3) the programmed extrastimulus technique of "long-short" and "short-long" intervals increased the transmural ERPs-dispersion in the hypertrophic heart.

Dysphagia is a common problem in cerebrovascular diseases such as intracerebral hemorrhage , cere-bral infarction and so on . When food or liquid passes through the larynx , it may cause intensively bucking . Nowadays there are no specific drugs , but the swallowing function will progress after acupuncture and rehabili-tation therapy . We searched and analyzed articles on acupuncture and rehabilitation therapy in the treatment of post-stroke dysphagia in recent three years . It showed that both of them were effective for the swallowing function of patients. The combination of both therapies receives better effects. However, there are still argu-ments in the clinical using opportunity of acupuncture and rehabilitation therapy for the treatment . There are so many methods in the treatment of this disease by acupuncture. Hence, there are no efficient contrasts or standard therapies. In the future, the clinical practice should pay more attention to the therapy of high quality and optimization in order to promote its clinical application .

Objective To investigate the clinicopathologic characteristics,therapy and prognostic factors of small cell carcinoma of the cervix.Methods Clinical and pathological data of eight patients were analyzed retrospectively.Results Eight patients all presented with symptoms of abnormal vaginal bleeding or postcoital spotting.One patient had stage Ⅰ b1 disease,2 had stage Ⅰ b2 disease.2 had stage Ⅱ b disease and 3 had stage Ⅲ b disease.Histopathologic findings showed the small tumor cells had scant cytoplasm,round nuclei,absence of nucleoli,and finely dispersed chromatin.Immunohistochemical findings were positive in 7 cases for neuron-specific enolase.Three patients with stage Ⅰ b disease and 1patient with stage Ⅲb disease underwent radical hysterectomy and postoperative chemotherapy.with or without radiotherapy,and the survival period was 64,22,14 and 6 months respectively.Two patients with stage Ⅱ b disease and 2 with stage Ⅲ b disease underwent chemotherapy and radiotherapy,and the survival period was 25,9,10 and 5 months respectively.Conclusions Immunohistochemical analysis using several kinds of neuroendocrine markers is helpful in establishing the correct diagnosis in addition to focusing on characteristic histopathological features.It is necessary to use comprehensive treatment including surgery,chemotherapy and radiotherapy for patients with small cell carcinoma of the cervix.Chemotherapy may play an important role in the treatment.

Objective To study the diagnostic value of multi-direction adjusted multiplanar reconstruction (MPR)by 64-slice CT myelography (CTM)in diagnosing cervical nerve injury,and the possibility of the MPR to replace conventional myelography and CT direct-scanning axial images.Methods Twenty-six patients with cervical nerve root injury were examined by conventional myelograpby and 64-slice CT using isotropic parameters.Then multi-direction MPR were performed to display nerve roots on coronal and sagittal planes besides axial images.Twenty-six patients were performed surgical operations and diagnosis were obtained.The coincident diagnosing rate with surgical operations results were compared statistically among multi-direction MPR,direct-scanning axial CT images,conventional myelography.The numbers of images were also compared between axial MPR and direct scanning axial CT images.Results Direct sign of nerve root avulsion was the loss of normal nerve root defect seen in the Isovist filled thecal sac in 6d-slice CT,which was found in 31 nerve roots.Indirect signs included:(1)Traumatic pseudomeningocele: 29 nerve roots showed the leak of Isovist into nerve root sheath,and extended into foramina;(2)Arachnoid cyst: 26 nerve roots clearly displays cystic distension in nerve root,which has low- density fine clew form septation from subarachnoid cavity and no nerve root in the cyst ;(3)Deformity of the subarachnoid space : deformity of thecal sac,partially lack of Isovist into arachnoid space,which was found in 17 nerve roots.The coincident diagnosing rate of cervical nerve root injury by multi-direction adjusted coronal MPR imaging was 92.6% (50/54),which was higher than by axial CT (77.8%,42/54)and conventional myelography (68.5%,37/54),There was significant difference between the conventional myelography, direct-scanning axial CT,multi-direction MPR images (Kappa = 0.686,0.772,0.920, respectively,P

?AIM: To study the association of the single nucleotide polymorphism ( SNP) rs1157699 in the calcitonin receptor-like receptor ( CRLR ) gene with primary angle closure ( PAC) in a Han Chinese population.?METHODS: All samples, involved 232 PAC cases and 306 controls, were obtained from an epidemiologic survey conducted in Funing, Jiangsu Province, China. Genotyping were carried out by TaqMan-MGB probe using the real time quantitative polymerase chain reaction system to study the relationship between SNP of rs1157699 in CRLR gene and PAC.?RESULTS: The prevalence of CRLRrs1157699 genotype was 67.4%, 30.0%, 2.6% for CC, CT, TT in cases, and 71.3%, 27.0%, 1.7% in controls respectively.There was no difference between the two groups in the distribution of genotype and allele frequencies of rs1157699 (P>0.05).?CONCLUSION:Our results do not support a significant role for rs1157699 in CRLR with PAC.

Objective To explore the clinical-pathologic characteristics, treatment modalities and prognosis of patients with vaginal intracpithelial neoplasia ( VAIN ). Methods The clinical, pathologic and follow-up data of 20 cases with vaginal intraepithelial neoplasia treated primarily in Cancer Hospital of Chinese Academy of Medical Sciences from Jan. 1999 to Dec. 2007, were reviewed and analyzed retrospectively. Results There were not any of symptoms on diagnosis in all patients, and most of them ( 17 cases, 85% ) were frequently detected VAIN for the abnormal pap smears or pelvic examination from cervical carcinoma patients and under the colposcopy as well as colposcopic biopsies. There were 3 cases (15%) with cervical cancer were diagnosed as VAIN during the postoperative follow up, while 17 cases (85%) of patients were accompanied with cervical cancer( 12 eases) or cervical intraepithelial neoplasia (CIN, 5 cases ) concomitantly or antecedently. Ninety percent of patients were diagnosed as VAIN Ⅲ,17 cases (85%) were mainly localized in the upper third of vagina, and 13 cases (65%) affected to the multiple vaginal walls. Thirteen cases were performed surgery, and 7 cases were treated by irradiation. The local control rate was achieved to 100% in all of patients. Three cases ( included 1 post-irradiated and 2 post-operative) were relapsed after treatment, but still be controlled completely by radiotherapy or surgery. Conclusions VAIN was difficult to be diagnosed independently, which was frequently accompanied by cervical cancer or CIN, significantly localized in the upper third of vagina involving the multiple walls of vagina, and treated synchronously with cervical carcinoma and CIN accompanying. Surgery and radiotherapy was equally effective to control VAIN, and then follow-up post-treatment should be closely to detect, diagnose and treat recurrent VAIN as soon as possible after treatment.

The combination of medicinal properties refers to expression forms of elements with active properties combined according to a specific sequence. The mode of medicinal property combination refers to the compatible relationship multiple medicinal property combinations. In this paper, based on the mode, safflower, Taohong Siwu decoction, Xuefu Zhuyu decoction and Buyang Huanwu decoction were taken for example to study the characteristics of the compatibility among single herb, herbal pairs and prescriptions. The authors discovered the similarities and differences among them, interpreted the self-similarity in medicinal property combinations of traditional Chinese medicines, and analyzed the compatible relationship among multiple medicinal property combinations, so as to bring forth new ideas in discovering the correlation between the compatibility study mode of traditional Chinese medicines based medicinal property combinations and the efficient compatibility of medicinal property combination.
Drug Combinations ; Drug Prescriptions ; Drug Therapy ; Drugs, Chinese Herbal ; chemistry ; pharmacology ; Humans ; Medicine, Chinese Traditional

Antibodies, Viral ; blood ; China ; epidemiology ; Humans ; Yellow Fever ; epidemiology ; Yellow fever virus ; immunology