Purpose:To validate further the importance of r adiotherapy following breast-conserving surgery in early breast cancer. Methods:From 1994.12 to 2001.12,237patients with early stage breast can cer were treated Of these patients,eighty-three received breast-conserving surgery followed by radiotherapy,and one hundred and fifty-four received modified radical mastectom y.All patients with breast-conserving surgery underwent postoperative radiother apy.The range of radiation dose depends on the size,location of tumor,and involv ement of axillaty nodes.Tangential chest wall fields delivered 5000cGy with 8MV -X ray beam in 5 weeks .An additional 1500cGy was delivered in 8 days to tumor bed with electron beam.Among the patients with modified radical mastectomy.only 3 received postoperative radiotherapy.Results:In both the breast-conserving surgery group and modified radical mastectomy gro up,one patient recurred regionally,and one died respectively .In the modified ra dical mastectomy group,there were no regional lymph nodes recurrence,but two of them had distant metastasis.The 5year survival of the two groups were 96.49%and 98.61%,respectively.The breasts are soft and resilient in the breast-conserving surgery group,and breast shape whole after surgery.Conclusions :Breast-conserving surgery plus postoperative radiotherapy in early breast can cer can obtain treatment results similar to modified radical mastectomy,with goo d cosmetic

Heart ; drug effects ; Heart Failure ; drug therapy ; Humans ; Hydrogen Bonding ; Nitrogen Oxides ; pharmacology ; therapeutic use

Objective To compare the value of liquid-based preparations versus conventional smears in the diagnosis of non-thyroid neck masses from fine needle aspiration. Methods The two different methods were compared by the smear quality and the diagnostic accuracy for the aspiration samples of non-thyroid neck masses of 400 patients. Results The unsatisfactory rate for LBP was lower than that for CS (13.0% vs. 16.0%, P < 0.05). The sensitivity was 94.6% for LBP and 92.9% for CS, and the accuracy was 96.8% for LBP and 95.0% for CS. In the aspect of smear quality, LBP had advantages of quantity of cells, with clear background and easily identifiable cell morphology. Conclusions LBP has more advantages than CS in the identification of non-thyroid neck masses, especially for cervical nodal enlargement. But it has no marked advantages in the diagnosis of salivary gland lesions.

[Objective] To investigate the effect of Xiaocuo Prescription (XP), a herbal medicine compound with the actions of clearing away heat and toxins, activating blood and removing blood-stasis, on acne vulgaris. [Methods] Four hundred and forty six cases of acne vulgaris were randomized to two groups: group A (325 cases) treated with oral use of XP (mainly composed of Flos Lonicerae, Herba Hedyotis Diffusae, Herba Taraxaci, Flos Chrysanthemi, Radix Scutellariae, Cortex Mori, Radix Salviae Miltiorrhizae, etc.) and external application of Acne Vulgaris Liquid (composed of 3% metronidazole and 2% erythromycin), group B (121 cases) treated with oral use of isotretinoin and external application of Acne Vulgaris Liquid. Skin lesions on the face as well as the side effects were observed before and after treatment. [Results] Ridit analysis showed that curative effect in group A was better that in group B ( u = 2.204 6, P .05). No obvious side effects were found in group A but in 5 cases of group B side effects such as skin dryness, nausea and vertigo were found. [ Conclusion ] XP is effective in treating acne vulgaris . Further research is needed for its therapeutic mechanism.

Based on their own characteristics and learning purposes of the child neurologic training doctors and to full use of the advantage of our hospital in faculties, facilities and patients, the plan was designed and focused on better understanding of clinical related basic theoretical knowledge, improving the ability of clinical research and thesis writing, strengthening communication skills between patients and doctors, and medical ethics training and health regulations learning. The training doctors achieved good results in the aspects of medical skills, research ability and comprehensive professional quality.

Amyloidosis ; pathology ; Female ; Gadolinium ; Heart Diseases ; pathology ; Humans ; Magnetic Resonance Spectroscopy ; methods ; Male ; Middle Aged ; Myocardium ; pathology

ObjectiveTo explore the effects of short-term high-fat diet on expression of peroxisome proliferator-activated receptor-γ-coactivator 1α (PGC1α) in hypothalamus of rats. Methods18 male SD rats were randomly divided into 2 groups: the normal control group (NC) and the high-fat group (HF). After two-week adaptive feeding, the 2 groups were given control diet and high-fat diet respectively for 3 days. Body weight and energy intake were recorded every day. Random blood glucose of caudal vein was measured before and after intervention. The mRNA and protein levels of PGC1α, UCP2 and CPT1a in hypothalamus were detected by quantitative RT-PCR and Western Blot. ResultsAfter the three-day treatment, the energy intake in HF group was significantly increased compared with that in NC group (75.7 ±5. 02 vs 60.4 ±4.53 kcal/d, P ＜0.05). However,the body weight, food intake and blood glucose level were not significantly changed. The mRNA level of PGC1α was significantly decreased (P ＜0.05 ), while no significant difference was observed in protein levels. Conclusion Short-term high-fat diet downregu]ates the expression of PGC1α mRNA in hypothalamus of rats.

BACKGROUND: Among multiple signals which affect the function of melanocyte, nitrogen monoxide (NO) has been thought as an important signal molecule. Emodin hypo-acid, effective component of rhubarb, can affect proliferation of melanocyte and regulate activity of tyrosinase in cells. OBJECTIVE: To study the effect of emodin hypo-acid on expression of nitricoxide synthase (NOS) of melanocyte in skin of guinea pig and definite the effective concentrations and mechanism of melanocyte in synthesizing melanin in living skin.DESIGN: Completely randomized grouping design and controlled study.SETTING: Department of Dermatology, Affiliated Hospital of Luzhou Medical College.MATERIALS: The experiment was completed at the Infection Laboratory of Affiliated Hospital of Luzhou Medical College and Laboratory of Histology and Embryology of Luzhou Medical College from January to June 2004. A total of 24 adult healthy male guinea pigs were randomly divided into 6 groups: control group, 2, 5, 10, 20 and 40 mg/L emodin hypo-acid groups with 4 in each group.METHODS: ① Emodin hypo-acid was diluted with dimethyl-sulfoxide into 2, 5, 10, 20 and 40 mg/L, then guinea pigs in emodin hypo-acid groups were injected subcutaneously with relevant dosages of emodin hypoacid which was provided by National Institute for the Control of Pharmaceutical and Biological Products into local skins of haunch and back, and the injected volume was 1 mL. Twenty-four hours later, 1 mL emodin hypo-acid of the same concentration was injected once again into one of the places which was injected before. Skin samples were selected after 48 hours and routine paraffin section was made. Skins which were not injected with any drugs were selected from control group and emodin hypoacid groups to regard as experimental control group. ② Expression of NOS was assayed with immunohistochemical method and melanocyte was identified under high-times optic microscope to observe stain and characteristic of cytoplasm. Five sections were randomly selected from each group. Every 20 cells on each section were measured with MLAS-1000 imaging analyzer and computer processing system was used to calculate average absorbency (A) of positive immune product in melanocyte. ③ Measurement data were compared with analysis of variance, and differences among groups were compared with SNK-q.MAIN OUTCOME MEASURES: Expression of NOS in melanocyte was assayed with immunohistochemical method and results were obtained with optic microscope and imaging analyzer.RESULTS: Average A value of positive immune product in melanocyte was lower in 2, 5, 10, 20 and 40 mg/L emodin hypo-acid groups than that in experimental control group (0.126±0.118, 0.103±0.082, 0.118±0.097,0.122±0.095, 0.112±0.078, 0.196±0.066, P ＜ 0.05). There was no significant difference among emodin hypo-acid groups at various concentrations.CONCLUSION: ① Emodin hypo-acid can regulate expression of NOS in melanocyte through NO signal transduction pathway. ② Expression of NOS is not changed as the mass concentration of emodin hypo-acid varied from 2 to 40 mg/L.

Objective:To explore the mechanism of renal injury in severe acute pancreatitis(SAP).Methods:54 SD rats were randomly divided into sham operation group(n=24) and SAP group(n=30).SAP model was induced by injection of 5% sodium taurocholate solution into bilo-pancreatic duct.Rats from each group were killed and the serum and ascite were collected at 6h,12h,24h after operation.Tumor necrosis factor-?(TNF-?)level of serum and ascite were measured by enzyme linked immuno-sorbent assay (ELISA).The expressions of TNF-? mRNA were assessed by RT-PCR analysis.The serum and ascites that had been collected at 24h after development were injected into medium of NRK cell,then the levels of TNF-? secreted by NRK cell were measured after injection 6h,12h,24h,and the cell apoptosis were also evaluated after injection 24h.NRK cell apoptosis were evaluated by flow cytometry (FCM).Results:①The serum and ascites levels of TNF-? were signficantly elevated in SAP groups compared with sham operation groups at any time point(P

BACKGROUND:The mechanism and effect of glycogen synthase kinase 3β(GSK-3β) in the differentiation of cardiac stem cel s into cardiomyocytes are stil unclear, although GSK-3βis closely related to the life activities of cel s.
OBJECTIVE:To investigate the changes of GSK-3βexpression in the treatment of myocardial infarction in rats undergoing cardiac stem cel transplantation.
METHODS:The isolation and culture of cardiac stem cel s were performed in 10 neonatal rats. Lentivirus overexpressing GSK-3βor LacZ (control) was constructed and transferred into cardiac stem cel s. Animal model of myocardial infarction was made in 30 Sprague-Dawley rats. Six weeks after model preparation, rat models were assigned into GSK-3β, LacZ or PBS group. GSK-3βor LacZ overexpressing cardiac stem cel solution or PBS in equal volume was injected into the rat myocardium, respectively. Four weeks after transplantation, the cardiac function and myocardial col agen production in rats were detected and compared.
RESULTS AND CONCLUSION:Compared with the other two groups, the left ventricular ejection fraction was significantly higher, and the left ventricular end diastolic diameter was significantly lower in the GSK-3βgroup (P<0.05). Hydroxyproline content, type I col agen mRNA, and type III col agen mRNA expression were significantly lower in the GSK-3βgroup than the other two groups (P<0.05). Findings from Masson staining showed that the content of blue-stained col agen was significantly lower in the GSK-3βgroup than the LacZ group. Moreover, lowest myocardial infarction size was found in the GSK-3βgroup (P<0.05). Al these experimental findings show that GSK-3 overexpression plays a positive role in promoting the therapeutic effect of cardiac stem cel transplantation.