The "Cancer Toxin" pathogenesis theory is an innovate theoretical system for cancer pathogenesis of Chinese Medicine, which was built on the basis of "Cancer Toxin" concept initially raised by Professor ZHOU Zhong-ying. The mechanism of the transformation from inflammation to carcinoma has become one of hot-points in the field of cancer research at home and abroad in recent years. We focused on discussing the relevance of the "Cancer Toxin" pathogenesis theory with the transformation mechanism from inflammation to cancer, provided evidence for using "Cancer Toxin" pathogenesis theory in intervening transformation from inflammation to cancer, hoping to guide for Chinese medical prevention and treatment of tumor.
Biomedical Research ; Carcinoma ; physiopathology ; Humans ; Inflammation ; physiopathology ; Medicine, Chinese Traditional ; Neoplasms ; physiopathology

Objective To observe the clinical therapeutic effect of danshenfenzhen and nutritional support in treating congestive heart failure accompanied with malnutrition on the basis of common treatment.Methods 42 cas- es of congestive heart failure accompanied with malnutrition were randomly divided into 2 groups:test group 21 cases (danshenfenzhen and nutritional support) and control group 21 cases(free diet),in the test group intravenous drip danshenfenzhen and vein nutrition were given if the internal nutrition can not provide enough energy on the basis of count of energy consumption,the serum albumin,total blood lymph cells and body weight were measured.Results After 14 days' treatment in the test group,the serum albumin,body weight and the total lymph cell increased signifi- cantly while in the control group,the serum albumin,body weight and the total lymph cells decreased significantly. Conclusion Intravenous drip danshenfenzhen and nutritional support can improve nutritional status and cardiac function of patients with congestive heart failure accompanied with malnutrition.

Objective To explore the relationship of zearalenone (ZEA) and precocious puberty in girls.Methods The peripheral serums from 71 cases of precocious puberty girls and 50 cases of healthy girls were collected respectively and concentrations of ZEA were detected by high performance liquid chromatography.Bone age,body mass index (BMI),volume of uterus and ovaries,concentrations of estradiol (E2),luteinizing hormone (LH) and folliclestimulating hormone (FSH) were detected,and the residence of each subject was recorded as well.Results (1) In 71 patients,52 patients were diagnosed as idiopathic central precocious puberty,others were diagnosed as premature thelarche.(2) In 71 patients,serum ZEA was detected from 51 patients,and undetected in 20 patients.(3)Concentration of ZEA in precocious puberty girls [(318 ±34) ng/L]was significantly increased than that in healthy girls [(143 ± 35) ng/L,P =0.002],but no distinct difference existed between ICPP group and PT group(P =0.326).(4)Compared with uterus volume of ZEA in the undetected patients (1.975 ±0.150) cm3,the uterus volume of ZEA detected patients (2.972 ±0.180) cm3,which was significantly enlarged,there was significant difference (P =0.01) ; Percentage of overweight girls in ZEA detected patients (31.4％,16/51 cases) was lower than which in ZEA undetected patients (65.0％,13/20 cases,P =0.01) ; Although there was no statistical differences in the breast diameter,bone age,value of E2,LH and FSH between ZEA detected patients and undetected patients (all P ＞ 0.05),but the increased tendency in ZEA detected patients existed.(5) ZEA in serum was detected in 53.3％ (16/30 cases) patients living in the cities,and the rate was obviously lower than 82.9％ of the patients (34/41 cases) living in the countryside,there was significant difference (P =0.007).Conclusions ZEA is correlated with precocious puberty in girls.ZEA pollution might be one of reasons for precocious puberty occurrence.

Objective To retrospectively analyze computerized tomography (CT) imaging features of colorectal cancer with chronic schistosomiasis in order to improve the diagnostic accuracy.Methods Eighty patients whose diagnosis was pathologically confirmed as colorectal cancer with schistosomiasis were collected from Tongji Hospital and Kunshan Chinese Medicine Hospital from January 2007 to December 2012.All the patients underwent abdominal plain CT and contrast-enhanced CT scan.The lesion location,morphology,size,calcification features,enhancement patterns and cancer metastasis were evaluated and compared by two radiologists who were blind to the diagnosis.Twenty colorectal cancer cases without schistosomiasis from the same area were also collected as controls.Results CT imaging showed that the tumors all occurred in the colon and rectum in 80 patients,mainly in colon descendens,colon sigmoideum and rectum.The lesion was characterized by irregular bowel wall thickening with soft tissue masses,and the average length of impaired intestine was (21.35 ± 4.50) cm.The lesions were solitary in 68 cases (85.0％) and were multifocal in 12 cases (15.0％).Linear,spotty and small patchy calcifications were seen in all the patients,with margins unclear in 59 patients (73.8％) and margins clear in 21 patients (26.2％).Early phase enhancement was seen in 68 cases (85.0％),of which 45 cases (56.2％) had homogenous enhancement and 23 cases (28.8％) had heterogeneous enhancement.Late phase enhancement was seen in 73 cases (91.2％) and necrosis was hardly seen.Only two cases (2.5％) had liver metastasis without lymphatic metastasis.All the 20 colorectal cancer cases without schistosomiasis presented with single lesion,which was characterized by irregular bowel wall thickening and local ulcer.The average length of impaired intestine was (6.90±3.40) cm.No calcification was seen in these lesions.All cases had early phase lesion with remarkable heterogeneous enhancement with low density necrotic area.The late phase enhancement was decreased.Four cases (20.0％) had liver metastasis.Compared to cases without schistosomiasis,cases with schistosomiasis tended to have multifocal (x2=100,P=0.000) and longer lesion (t=45.506,P=0.000),and more calcification (x2=100,P=0.000).The early phase heterogeneous enhancement was less frequent (x2 =88,P=0.000) and late phase enhancement was more frequent (x2=100,P=0.000).The liver metastasis rate was significantly lower (x2 =8.688,P =0.014).Conclusions The CT imaging of colorectal cancer with schistosomiasis is characterized by calcifications inside the tumor with obscured margins and multiple intestinal segments involvement.Hematogenous metastasis and lymphatic metastasis are rarely seen.

Objective To investigate the correlation between serum amyloid A (SAA) and disease activity (DAS28) in patients with rheumatoid arthritis (RA). Methods Forty-four patients with RA, 35 patients with systemic lupus erythe-matosus (SLE), 18 patients with osteoarthritis (OA) and 30 healthy controls (HC) were enrolled in this study. The levels of SAA were measured by ELISA. Erythrocyte sedimentation rate (ESR) was measured by the Westergren method. The value of serum C reactive protein (CRP) was examined by immunonephelometry assay. The correlation between SAA and DAS 28, ESR and CRP was assessed, respectively. Results The SAA levels were significantly higher in RA group than those of SLE, OA, and HC groups (P<0.05). The serum ESR and CRP levels were both higher in RA group than those of OA and HC groups (P>0.05), but there was no significant difference between RA group and SLE group. There was positive correlation between SAA and DAS28, ESR, and CRP levels (rs=0.790, P<0.001;rs=0.674, P<0.001;rs=0.679, P=0.004), respective-ly. Conclusion SAA may be a new serological marker to assess disease activity in RA.

OBJECTIVETo explore the preventive effect of Yougui drink on femoral head necrosis in rats under micro CT.

METHODSTwenty-five SD rats were divided into steroid hormone group (group A, 10 rats ), Yougui drink group (group B,10 rats) and normal group (group C,5 rats)with random number table. Endotoxin were injected into abdominal cavity of rats in group A and B for 2 days, methylprednisolone sodium succinate were injected by gluteus for twice a week continued for 6 weeks; group B were gavaged by Yougui drink (veryday for 8 weeks; group C did not do any processing. All rats were killed on the 10th weeks,m icro CT were used to scan femoral head in vitro and preventive effect of Yougui drink (n femoral head necrosis in rats.

RESULTSThere was statistical significance in BMD, BV/TV, Tb.N, Tb, Th, Thb, Sp, BS/TV and DA but no significance in SMI between group A and B. Comparison between A and C, there was significant meaning in BMD, BV/TV, Tb.N, Tb, Th, Tb, Sp, BS/TV, DA and SMI.

CONCLUSIONYougui drink on femoral head necrosis in rats under micro CT has preventive effect from BMD BV/TV, Tb.N, Tb, Th, Tb, Sp, BS/TV and DA.

Animals ; Apoptosis ; Bone Density ; Drugs, Chinese Herbal ; therapeutic use ; Femur Head Necrosis ; diagnostic imaging ; pathology ; prevention & control ; Rats ; Rats, Sprague-Dawley ; X-Ray Microtomography ; methods

ObjectiveTo retrospectively analyze the abdominal computer tomography (CT)findings and pathological results of chronic intestinal schistosomiasis in order to improve the diagnostic accuracy of the disease.MethodsThe plain plus enhanced CT scanning was performed in 56 cases (male 37,female 19; mean age 69.2 years).All cases confirmed by pathological examination.The location,shape,size,calcification and pattern of enhancement of lesion were analyzed by two radiological physicians independently.ResultsThe colon wall of all 56 cases was presented with thickening (0.3-1.2 cm) by CT scanning,among which,43 (76.8％) were presented with welldistributed thickening.The calcification of colon wall included linear calcification (n=42),tram-like calcification (n=19) and spot calcification (n=8).The margin of calcification was clear.The locations of calcification in colon were as follows:whole colon (n =5 ),ascending colon (n =9 ),transverse colon (n=12),descending colon (n =24),rectosigmoid (n=34) and rectum (n=30).There were 17 cases presented with severe calcification.The pathological examinations confirmed that linear and tram-like calcification resulted from calcified ova deposited in submucous,subserosa. In 8 cases with spot calcification and 17 with severe calcification,there were calcified ova deposited in all layers of colon wall,accompanied by chronic inflammation,polyp and schistosomiasis granuloma.There were 5 cases complicated by adenocarcinoma.ConclusionsCT scanning is an important imaging method in the diagnosis of chronic intestinal schistosomiasis,with the distinguishing presentation of well-distributed thickening and calcification in the colon wall.When irregular thickening,mass or nodular are found in the colon wall of patients with chronic intestinal schistosomiasis,colorectal carcinoma should be highly suspected.

ObjectiveTo investigate the influence of TGF-β receptor subtypes expression and their downstream signaling Smad proteins on rat renal interstitial fibrosis induced by unilateral ureteral obstruction(UUO).MethodsA total of 90 rats were randomly divided into three groups:normal control(CON),sham operation (SOR) and UUO group,and sacrificed 1,3,7,14 and 21 days after operation.Serum creatinine and urea nitrogen were detected to assess renal function.PAS and Masson staining were performed to observe histological damage in the kidneys.Quantitative RT-PCR was used to define expression of mRNA encoding TGF-β receptor subtypes and their downstream signaling Smad proteins in kidney tubular cells.Real-time PCR,Western blotting and immunofluorescence were used to monitor the time-related expression of the TGF-β receptor subtypes and their downstream signaling Smad proteins in kidney.ResultsCompared with the CON group,serum creatinine and urea nitrogen in UUO groups increased at day 3 after operation (P＜0.05) and reached their peak 21 days after operation (P＜0.01).Obvious inflammatory cell infiltration was observed in UUO group 3 days after operation,while renal tubular atrophy and renal interstitial fibrosis were observed in UUO group14 days after operation.The mRNA expressions of ALK-5,ALK-7 and TGF-βR Ⅱ increased significantly in UUO group 3 days after operation (all P＜0.05) and reached their peaks 14 days after operation (all P＜0.01).The mRNA expression of ALK-6 decreased significantly in UUO group 3 days after operation(P＜0.05) and reached its lowest level 14 days after operation (P＜0.01).The changes in the protein level of those receptors were consistent with their mRNA expressions.The protein expressions of Smad2/3 and p-Smad2/3 increased significantly in UUO group at day 3(all P＜0.05) and reached their peak at day 14 after operation(all P＜0.01).ConclusionExpressions of TGF-β receptor subtypes ALK-5,ALK-6,ALK-7,TGF-βR Ⅱ and their downstream signaling Smad2 and Smad3 proteins may influence the progress of renal interstitial fibrosis,tubular atrophy and inflammatory cell infiltration in UUO model rats.

Objective To explore the application of interferon(IFN)response-related genes in predicting the outcome of antiviral treatment in chronic hepatitis C. Methods SuperArray microarray was used to detect the expression of IFN response-related genes in peripheral blood monocytes(PBMC)from chronic hepatitis C patients before treatment. SPSS 12.0 was used for statistical analysis. Results Ten patients were classified as rapid responders(RVR)and seven patients as non-RVRs according to the serum HCV RNA level after 4 weeks of treatment in 17 patients. Compared with healthy controls, nine differentially expressed genes were found in RVR patients, one up-regulated and eight down-regulated; eighteen differentially expressed genes were found in N-RVR patients, all down-regulated. Five differentially expressed genes were found between the patients with RVR and N-RVR: four up-regulated genes were PRKCZ, PRKRA, IRF5 and TNFSF10(t =5.44, 3.13, 5.24 and 2.30, P=0. 000, 0.010, 0.005 and 0. 044); one up-regulated gene was IFIT5(t = 2.43, P = 0. 035). Of seventeen patients, 12 were HCV genotype 1b, 5 were HCV genotype 2a. Compared with HCV2a, IFI6 and IFI44 gene in HCV1b were downregulated(t = 2.42 and 2.45, P = 0. 038 and 0. 033). Conclusions The expression of IFN responserelated genes is associated with response to IFN treatment. HCV genotype 1 b is more successful in inducing the down-regulation of IFN response-related genes than that of HCV genotype 2a, thus leading to the resistance to IFN.

Objective To investigate the effect of curcumin an extract of a Chinese medical herb on the sensitivity of CD133 + rectal cancer cells to radiotherapy.Methods In vitro experiments:CD133 +cells were purified with immunomagnetic beads from HRT-18 cell line and divided into curcumin group,radiotherapy group and curcumin plus radiotherapy group.MTT assay and Annexin V/PI staining were used to measure the proliferation and apoptosis of the cells.In vivo experiments:Transplanted rectal tumor was established in 46 nude mice and randomly divided into curcumin group,radiotherapy group and curcumin plus radiotherapy group.Tumor size and apoptosis were detected by daily observation and TUNEL staining respectively.Results Curcumin inhibited proliferation and apoptosis of CD133 + rectal cancer cells when combined with radiotherapy.It also significantly increased the growth inhibition of rectal tumor and promoted the apoptosis of rectal cancer in vivo.MTT assay showed that after 24 hours,compared with that of radiotherapy group(14.6％ ± 1.0％),curcumin plus radiotherapy group (18.7％ ± 1.7％) inhibited the growth of the tumor(P ＜ 0.01).Annexin V/PI showed that curcumin plus radiotherapy group (28.8％ ±3.7％) was significantly different from the radiotherapy group(13.1％ ± 1.4％) in cell apoptosis (P ＜0.01).In vivo,after 6 days,tumor volume (521 ± 79) mm3 in curcumin plus radiotherapy group was significantly lower than that of radiotherapy group(717 ± 134) mm3 (P ＜ 0.01) ; TUNEL staining results indicated that the RCST in curcumin plus radiotherapy group (26.1％ ± 3.3％) were higher than that in radiotherapy group (12.0％ ± 2.1％) (P ＜ 0.01).Conclusions Curcumin significantly enhances the radiosensitizing effect for CD133 + rectal cancer cells.