OBJECTIVETo investigate the value of technetium-99m methoxyisobutylisonitrile ((99)Tc(m)-MIBI) imaging in predicting the efficacy of neoadjuvant chemotherapy (NCT) and prognosis in patients with operable breast cancer.

METHODSSixty five patients with breast cancer underwent (99)Tc(m)-MIBI scintimammography before NCT, and static planar images were taken at 10 min and 180 min after scintimammography. The clearance rate was calculated in each patient, correlation between the clearance rate and efficacy of NCT, and the disease free survival rate were analyzed.

RESULTSThe mean clearance rate of 65 patients was (17.4 ± 6.8)%. The efficacy of NCT was 86.2% (CR 4 cases, PR 52 cases, SD 8 cases, and PD 1 case), and the mean clearance rate of patients with good response or poor response of chemotherapy were (15.5 ± 5.0)% and (29.2 ± 3.2)%, respectively. There was a significant difference between the two groups. The average disease free survival rate in the group with low clearance rate was (75.8%, P = 0.046), significantly higher than that in the group with high clearance rate (53.1%).

CONCLUSIONScintimammography of (99)Tc(m)-MIBI may be used to evaluate the efficacy and prognosis of NCT for patients with operable breast cancer.

Adult ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Breast Neoplasms ; diagnostic imaging ; drug therapy ; Carcinoma, Ductal, Breast ; diagnostic imaging ; drug therapy ; Carcinoma, Lobular ; diagnostic imaging ; drug therapy ; Chemotherapy, Adjuvant ; Cyclophosphamide ; therapeutic use ; Disease-Free Survival ; Epirubicin ; therapeutic use ; Etoposide ; therapeutic use ; Female ; Fluorouracil ; therapeutic use ; Follow-Up Studies ; Humans ; Middle Aged ; Neoadjuvant Therapy ; Neoplasm Staging ; Predictive Value of Tests ; Radionuclide Imaging ; Radiopharmaceuticals ; Remission Induction ; Taxoids ; therapeutic use ; Technetium Tc 99m Sestamibi

BACKGROUNDKeratinocyte serum-free medium (K-SFM) is a defined medium used to support the growth of primary keratinocytes and embryonic stem cell. The aim of this research was to optimize enrichment of breast cancer stem cells (CSCs) using K-SFM.

METHODSA K-SFM was used to enrich CSCs from two breast cancer cell lines and a primary culture of breast cancer. RPMI-1640 supplemented with 10% fetal calf serum (FCS) was used as a control. CSCs were identified with flow cytometry using CD44(+)/CD24(-) as molecular markers. The expression of a variety of CSC markers (Oct-4, ABCG2, Nanog, N-cadherin, and E-cadherin) was analyzed with real-time PCR.

RESULTSMuch higher percentage of CSCs was achieved with K-SFM: 17.3% for MCF-7 cells, 17.4% for SKBR-3, and 20.0% for primary breast cancer culture. Less than 1% CSC was achieved using RPMI-1640 supplemented with 10% FCS. In comparison to the CSCs obtained with RPMI-1640, CSCs in the K-SFM expressed higher levels of Oct-4, ABCG2, Nanog and N-cadherin, and lower level of E-cadherin.

CONCLUSIONK-SFM is an optimal culture medium to maintain and to enrich breast CSCs.

ATP Binding Cassette Transporter, Sub-Family G, Member 2 ; ATP-Binding Cassette Transporters ; genetics ; Cadherins ; genetics ; Cell Culture Techniques ; methods ; Cell Line, Tumor ; Culture Media, Serum-Free ; Female ; Homeodomain Proteins ; genetics ; Humans ; Keratinocytes ; cytology ; Nanog Homeobox Protein ; Neoplasm Proteins ; genetics ; Neoplastic Stem Cells ; cytology ; metabolism ; Octamer Transcription Factor-3 ; genetics ; Real-Time Polymerase Chain Reaction

Objective To study the effects of human uriilary kallikrein(HUK)on the number of apoptotic cells and the expressions of Bcl-2 and Bax proteins in rats after focal cerebral ischemia and reperfusion(FCIR) injury. Methods Eighty-four Spmque-Dawley(SD)male rats were randomly divided into sham-operated group(n=12),ischemia-reperfusion group(n=36),and HUK-treated group (n=36). Transient focal cerebml ischemia models were established by middle cerebml artery occlusion.Six rats were chosen from sham-operated group,ischemia-reperfusion group,and HUK-treated group for measuring infarct sizes.The rest were used to evaluate neurologic fhnction impaiment and measure the nunlber of apoptotic cells and Bcl-2 or BaX protein positive cells in cerebral cortex with TUNEL and immunohistochemistry.The latter 2 groups were subdivided into 6,12,24,72,168 h reperfusio groups (each n=6). Results The neurologic function impairmlent score,the infarct sizes,the apoptotic cells and the expression of Bax protein of HUK-treated group at different time points (except 168 h group)significantly decreased compared wilh those of ischemia-reperfsion group (p＜0.05).The expression of Bcl-2 protein of HUK-treated group at different time points(except 168 h group) remarkably increased compared with that of ischemia-reperfusion group(P＜0.05). Conclusions HUK can excrt a protection against FCIR injury, maybe through up-regulating Bcl-2 and down-regulating Bax protein in the initial 3 d of FCIR injury to decrease the number of apoptotic cells

AIM:To analyze the association of intrauterine growth retardation (IUGR) and retinopathy of prematurity (ROP).METHODS:A retrospective analysis of a case series included in ROP screening from January 2011to December 2015 was performed in Suzhou Municipal Hospital.Totally 2527 children (5054 eyes) underwent screening.According to the gestational age,the data was divided into 4 groups (≤32wk,＞32 and ≤34wk,＞34 and ≤37wk,＞37wk).Every group was divided into two groups (IUGR group and no IUGR group) respectively.We compared the incidence of ROP in IUGR and non IUGR group.RESULTS:Of all the 2527 children,IUGR group were 702 including 78 ROP children,and non IUGR group were 1825 including 329 ROP children.There were 991 children were divided into ≤ 32wk group,including 63 IUGR in which 27 children were screened out ROP(42.9％) and 928 non IUGR in which 274 children were screened out ROP (29.5％),the difference on the incidence of ROP was statistically significant (X2 =4.958,P=0.026).There were 1025 children were divided into ＞ 32 and ≤ 34wk group,including 232 IUGR in which 33 children were screened out ROP(14.2％) and 793 non IUGR in which 51 children were screened out ROP (6.4％) and the difference was statistically significant (x2 =14.488,P＜0.001).There were 464 children were divided into ＞ 34 and ≤ 37wk group,including 374 IUGR in which 18 children were screened out ROP(4.8％) and 90 non IUGR in which 4 children were screened out ROP (4.4％) and the difference was not statistically significant (Fischer exact test,P=1).There were 47 children were divided into ＞37wk group,including 33 IUGR and 14 non IUGR,none were screened out in the two groups.CONCLUSION:Intrauterine growth retardation was closely related to the incidence of ROP.In the preterm infants with gestational age less than 34wk,the incidence of ROP in children with intrauterine growth retardation is significantly higher than that in children without intrauterine growth retardation.

·AIM: To retrospectively analyze the prevalence of retinopathy of prematurity(ROP) in 3471 neonates in Suzhou Municipal Hospital. ·METHODS: A total of 3471 children (1947 males, 1524 females) were screened for ROP in Suzhou Municipal Hospital from January 2010 to September 2016 using binocular ophthalmoscope or ( and) RetCamⅡ. First examination was performed from 4-6wk after birth. The ocular findings were recorded according to the International Classification of ROP and The Early Treatment for ROP. Only the more aggressive eye of bilateral asymmetrical cases was counted for statistical purpose. Children with ROP in both binocular or single eye were counted in 1 case, and the cases required surgeries were defined as severe cases. The prevalence of ROP and severe ROP in recent 6a were analyzed retrospectively. ·RESULTS: The overall relevance ratio of ROP and severe ROP was 17.03% and 1.15%. The relevance ratio of ROP and severe ROP of the males were 16.38% and 1.08%,and of the females were 17.85% and 1.25%, the results were not statistically different (x2= 1. 296, P =0.255). The relevance ratio of ROP and severe ROP of the single birth infants were 17.61% and 1.13%, and of the multiple birth infants were 15.13% and 1.23%,the results were not statistically different (x2=2.706, P=0.100). The children were divided into 5 groups according to the birth weight. The relevance ratio of ROP with birth weight<1000g,1000-1499g,1500-1999g,2000-2499g and ≥2500g were 75. 00%, 36. 17%, 10. 75%, 6. 86% and 3. 77%respectively with significant differences (There were significant differences between the three groups which the birth weight <2000g, P<0.005). The relevance ratio of severe ROP were 36.54%, 1.68%, 0.31%, 0.19% and 0 respectively in these birth weight groups (There were significant differences between the three groups which the birth weight <2000g,P<0.005). The children were divided into 4 groups according to gestational weeks, the relevance ratio of severe ROP of gestational age<28wk,28-31wk, 32-36wk and ≥37wk were 69. 12%, 29. 91%, 8.28% and 3.33% respectively with significant differences (There were significant differences between the three groups which the gestational age <37wk, P<0.005). The relevance ratio of severe ROP were 25%, 1.52%, 0.24% and 0 in these gestational age groups respectively (There were significant differences between the three groups which the gestational age <37wk,P<0.005). · CONCLUSION: The detection rate of ROP in 3471 premature infants was 17. 03%, the severe ROP was 1.15%. There was no evidence that sex and birth were related to ROP, but lower birth weight and smaller gestational age increased the detection rate of ROP.

Asians ; Biological Assay ; Breast Neoplasms/surgery* ; China ; Female ; Humans ; Mastectomy

Breast Neoplasms/surgery* ; China ; Humans ; Mastectomy ; Mastectomy, Modified Radical