ObjectiveTo study the rationale of breast-conserving therapy (BCT) for the treatment of early-stage breast cancer. MethodsFrom March 1994 to March 1995, 25 cases of early-stage breast cancer were treated with BCT. The indication was (1) tumor size 3.0 cm; (3) preoperative mammograms were performed in order to exclude multifocal cancer and the tumor with extensive calcification. Tumors were removed with at least 2 cm normal breast tissue margin (evaluated by frozen biopsy), and the axillary nodes were dissected in levels 1 and 2. Two weeks postoperatively patients were treated with radio-therapy to control possible microscopic residual foci. The breast cosmetic results and quality of life (QOL) were analyzed. ResultsAll cases were followed-up for an average of 64.1 months. No differences at 5 year′s survival and local recurrence were found between patients undergoing BCT and those with radical mastectomy.ConclusionThe result of early-stage breast cancer treated with breast-conserving therapy is satisfactory, this therapy is superior to radical mastectomy in terms of improving QOL under condition of strict patient selection and plan design.

AIM: To establish an apoptotic model induced by 1-methyl-4-phenylpyridinium ion(MPP~+) in PC12 cell and assess the effect of Semen Cuscuta extracts on protecting PC12 cell from apoptosis induced by MPP~+. METHODS: The cell viability was analyzed by MTT method,the morphological changes were observed by Hoechst 33258 staining assay,and the apoptosis rate was measured by flow cytometry analysis(FCM).(RESULTS:) Treatment of 0.15 mM MPP~+ for 48 h induced apoptosis in PC12 cells;concentration of 50 mg/L Semen Cuscuta extracts could protect cells from apoptosis induced by MPP~+. CONCLUSION: MPP~+-induced apoptosis in PC12 cell is greatly inhibited by Semen Cuscuta extracts.

Purpose:In order to determine the indications for adjuvant treatment in node-negative breast cancer.Methods:We analyzed 233 cases of node-negative breast cancer. Results:The recurrence ratio of node-negative breast cancer was 7.3 percent. The prognosis was connected with age,menstrual history , position, diameter of tumor and pathology. Among invasive lobule cancer, GradeⅢ and lymphocyte-negative cancer, the recurrence ratio was 28 percent in patients with three factors, 16 percent in patient with two factors, 7 percent in patients with one factor.Conclusions:Node-negative breast cancer cases with high recurrence factors need adjuvant treatment.

Objective To investigate the effect of Kangaroo care(KC)on diminishing neonatal pain during heel lancing. Methods Sixty neonates were divided randomly into two equal groups:intervention group and control group,which 30 cases in each group.In the intervention group,neonates were treated with KC(neonates were put in direct and continuous skin-to-skin contact with his/her mom)from 20 mins before heel lancing to 1 mins after the end of the lancing.In the control group,neonates were treated with regular care.The differences in heart rate,blood oxygen saturation,facial pain expression,crying duration and DAN(Douleur Aigue Nouveaune)scores between two groups were compared at 7 time points from 10s before the heel lancing to 10s after the lancing. Results The results of repeated measu te at 7 time points after heel lancing.There were significant interaction effect between time and main effect(P<0.01),which showed that the heart rate of two groups were not equal at different time points.Compared with the time effects(P<0.01)which showed that two groups of neonatal heart rate of the two groups would accelerate with time extension. There were significant differences(all P<0.05)in heart rate at 7 time points between two groups and smaller heart rate varied range in intervention group.The results of repeated measures analysis for neonatal blood oxygen saturation at 7 time points after heel lancing. There were significant interaction effect between time and main effects(P<0.01),which showed that the blood oxygen saturation of two groups were not equal at different time points.Compared with the time effect(P<0.01),which showed that two groups of neonatal blood oxygen saturation would reduce with time extension.There were significant differences(all P<0.05)in blood oxygen saturation of two groups at 30s,40s and 50s after heel lancing and smaller blood oxygen saturation varied range in intervention group.The crying duration and DAN scores in intervention group were significantly reduced compared with the controls(all P<0.05).Conclusions
Heel lancing could lead to moderate to severe pain of neonates.KC could effectively diminish the neonatal pain degree caused by heel lancing.

Objectives: To determine whether administration of growth hormone and fibrin glue could attenuate the inhibitory effects of sepsis on wound healing of intestinal anastomosis in rats. Methods: Antimesenteric transverse enterotomy of 4 mm was performed, a second laparotomy was subsequently performed after 24 hours, 6 cm of the intestine in the middle of the fistula segment was resected. An end-to-end single layer anastomosis was constructed using 4 inverted interrupted 6/0 polypropylene sutures. After anastomosis, the animals were divided into three groups.In control group, the rats had a sutured anastomosis;in fibrin glue(FG) group, the rats had a sutured anastomosis and fibrin glue; and in the FG/GH group, the rats had a sutured anastomosis,fibrin glueand growth hormone.Growth hormone of 3.0 U/(kg?d) was injected subcutaneously every 24 hours for 14 days. The anastomotic bursting pressureand breaking strength, hydroxyproline contentand histologywere measured as indicators of wound healing. Results: The breaking strengthand bursting pressureof intestinal anastomosis were increased at 12 th postoperatively and lasted for 5 days in FG group, and they were increased and lasted for 14 days in FG/GH group. Conclusions: Both fibrin glueand growth hormone can improve wound healing of intestinal anastomosis, and they had the effect of congruential sequence.

Objective To study the effect of comprehensive pain intervention on newborns' acute pain stimulus on heel's blood collection.Methods One hundred neonates were equally randomized into control group and treatment group.In the former,blood collection was done from heel without any intervention and in the latter the comprehensive intervention was done five minutes before blood collection from heel and 5 minutes after that.The two groups were compared in terms of heart rate,blood oxygen saturation,acute pain stimulus,crying time during collection and time for facial expressions 30 seconds before collection and 30 seconds after that.Results The score on pains and crying time during collection and time of pain face in the intervention group were significantly lower or shorter than those in the control group and the time for crying and painful facial expressions was both significantly shorter than those in the control group (P＜0.001).There was insignificant different in blood oxygen saturation (P＞0.05) and significant in the heart rate (P＜.0.01) 30 seconds before and after collection.Conclusion The comprehensive intervention by radiation warming,nipple or 10％ glucose sucking,caressing and curled-up position can relieve effectively the pains from neonatal invasive operation.

Fluorogenic quantitative polymerase chain reaction(FQ-PCR) is an emerging technique with high specificity,susceptibility,automatism and has been widely used for the detection and quantification of microorganism,some genetic diseases and cancer.The design and establishment of standard FQ-PCR laboratory are required not only by gene expansion and diagnosis but also by biosafty and veracity.The aim of the paper is to introduce the structural characteristics,instruments requirement and comfort parameters of FQ-PCR laboratory.

Background Experimental autoimmune uveitis (EAU) is a common animal model of uveitis.Natural killer (NK) cells have been confirmed to be a type of strong inflammation-causing cells,but its role in EAU is still studing.Objective This study was designed to explore the role and mechanism of NK cells in the pathogenesis of EAU.Methods Thirty-six SPF Lewis rats were randomly divided into expeimental control group and EAU 6-,9-,12-,16-,and 21-day groups (6 rats for each group).Rats in EAU group received subcutaneous injection interphotoreceptor retinoid binding protein (IRBP) combining 5 mg/ml tubercle bacillus with complete Freund's adjuvant (CFA) emulsion in foot pads,and then 400 ng pertussis toxin was intraperitoneally injected to extablish EAU models in the EAU 6-,9-,12-,16-,and 21-day group,and normal saline solution combined with CFA and 400 ng pertussis toxin was used in the same way in the experimental control group.The inflammatory response was observed by slit lamp daily after modeling and scored based on Caspi criteria.The eyeballs were extracted in 6,9,12,16 and 21 days after modeling for retinal histopathological examination,Immunofluorescent double-staining was employed to detect and locate the expression of NK cells in the retina.In addition,25 model rats were divided into EAU 0-,3-,6-,9-and 12-day groups,with 5 rats for each group,and eyeballs were extracted to prepare tissue homogenate.The expression of CXCL10 mRNA,and CXCL12 mRNA NK cell chemokines,in the tissue homogenate was assayed by real-time quantitative PCR.The use and care of the rats followed Regulations for the Administration of Affair Concerning Experimental Animal by State Science and Technology Commission.Results No inflammatory sign in ocular anterior segment of the rats was seen in the experimental control group.The expansion of rat iris vessels was found in the EAU 6-day group,and exudes and hypopyon of the anterior chamber occurred in the EAU 9-day group and the inflammation peaked in the EAU 12-day gorup.The rat retinal structure was normal in the experimental control group,and the arrangement disorder of retinal structure,the cell separation in outer nuclear layer and damage of photoreceptors were found under the optical microscope in different degree in various EAU groups,with the most serious change in the EAU 12-day group.Immunofluorescent double staining showed normally arranged nucleus in the experimental control group,and a lot of NK infiltration was seen in the EAU 6-day group and peaked in the EAU 9-day group.The expression level of CXCL10 mRNA in the EAU 9-day group was 34.298 ± 16.689,which was significantly higher than that in the EAU 3-,6-and 12-day group,respectively (1.390 ± 0.660,3.359 ± 2.581,4.711 ±1.387) (all at P＜0.01).No significant differences were found in the relative expression of CXCL12 mRNA among different EAU groups (F=2.851,P＞0.05).Conclusions Retinal NK cell infiltration occurs in the early stage of EAU,and the severity of NK cell infiltration is consistent with the inflammatory process and CXCL10 expression,suggesting NK cells play an important role in the early stage of EAU,and CXCL10 is an important chemokine of NK cells in EAU rats.

Objective To investigate the safety and feasibility of robot-assisted laparoscopic right hemicolectomy for colonic cancer. Methods These 5 patients with ascending colonic cancer received robot-assisted laparoscopic right hemicolectomy. Results All operations were performed successfully. There was no postoperative complications. Da Vinci surgical system was found to be associated with fewer hemorrhage, rapid postoperative intestinal recovery, and therefore a shorter hospital stay. Conclusions Robot-assisted laparoscopic right hemicolectomy can be applied safely and with feasibility for colonic cancer.

A total of 121 patients with metabolic syndrome (MS) and 120 normal subjects were recruited for exploring the association of serum adipokines with MS. The levels of resistin and adipocyte fatty acid-binding protein (A-FABP) increased, while adiponectin decreased gradually ( all P<0.05 ) in normal control group, MS without abdominal obesity group, and MS with abdominal obesity group. In MS group, resistin was positively correlated with body mass index ( BMI), waist circumference, systolic blood pressure, fasting plasma glucose, and A-FABP ( P<0.05 or P<0.01 ). Adiponectin was positively correlated with high-density lipoprotein-cholesterol and negatively correlated with BMI, waist circumference, fasting insulin, triglyceride, and homeostasis assessment of insulin resistant index.