It has been indicated that there are a large number of natural active compounds generating the radiosensitizing effect on tumor.According to diverse molecular mechanism,these compounds may enhance the radiotherapeutic efficacy via enhancing the radiosensitivity of tumor.Studying the radiosensitization mechanism and classifying the natural compounds with the potentiality of development into clinical radiosensitizers can provide certain ideas for further research and development of natural radiosensitizers.

Objective:To observe the clinical efficacy of Xihuang Pills combining with chemotherapy in treating breast cancer and the effects on CD+4,CD+8.Methods:Selecting 60 patients with breast cancer,the control group of 30 was treated with chemotherapy,the treated group of 30 was treated with Xihuang Pills combining with chemotherapy for two chemotherapy cycles,before and after treatment the CD+4,CD+8 levels were detected.Results:The traditional Chinese medicine syndrome and immune function in treated group was superior to those in control group,the difference between those two groups was statistically significant(P

Objective To investigate the relation of DNA content and SPF to the clinicopathological characteristic in lung cancer.Methods Fresh specimens taken from 56 patients with lung cancer and 36 patients with non-malignant pulmonary lesions were measured for DNA index(DI),S-phase fraction(SPF) by using FACSCalibur 4200 flow cytometry.Results ① DNA index(DI) of lung cancer was 1.18?0.33,0.99?0.07 in lung cancer and non-malignant groups,respectively.The percentage of heteroploid was 78.6% in lung cancer,(5.6%) in non-malignant.DI and the positive rate of heteroploid were significantly higher in lung cancer groups than that in non-malignant group(P0.05);③ It was demonstrated that SPF was significant higher in lung cancer groups than that in non-malignant group. The SPF of heteroploid tumors was higher than that of diploid tumors(P

Objective To explore the protective effect and mechanism of ligustrazine against ischemia-reperfusion injury of retina from neonatal rats.Methods Thirty-two neonatal rats were randomly divided into normal,model,solvent control and ligustrazine treatment group.Experimental model of retinal ischemia-reperfusion injury was established by increasing intraocular pressure through intracameral infusion.In the ligustrazine treatment group,ligustrazine was given by intraperitoneal injecting before 30 min ischmia and after reperfusion 2 hours,10 mg/kg.In the solvent control group,the same voluminal solvent(isotonic Na chloride)was given by the same way before 30 min ischmia and after reperfusion 2 hours.The neonatal rats were executed by aeroembolism after reperfusion 6 hours.The content of malon dialdehyde(MDA) and the superoxide dismutase(SOD) activity were measured by spectrophotometer.Results 1.The content of MDA in model group was significantly higher than that in normal group(t=4.80 P0.05).The SOD activity in model group was significantly lower than that of normal group(t=4.58 P0.05).Conclusion Ligustrazine can protect experimental retinal from ischemia-reperfused injury by increasing SOD activity and decreasing the content of MDA in neonatal rats.

OBJECTIVE:To explore the significance of clinical pharmacists providing pharmaceutical care for pregnant patients with asthma in respiratory department. METHODS:Clinical pharmacists participated in the analysis of 2 cases of pregnancy complicating with asthma and applied pharmaceutical suggestion and therapy plan as penicillin anti-infective thera-py,intravenous dripping of magnesium sulfate combined with doxofylline,albuterol aerosol treatment instead. RESULTS:The asthma symptom had been relieved significantly and then the patients were discharged from the hospital after clinical phar-macists disposed the symptom appropriately. CONCLUSIONS:The participation of clinical pharmacists in pharmaceutical care for pregnant patients with asthma in respiratory department. Can improve the prognosis effectively and guarantee the safety of drug use.

?With the deepening study of quercetin, some studies show that quercetin can protect lens, with pharmacological activities such as antioxidation and anti-apoptosis and so on. And they can delay the occurring and developing of cataract. The development and utilization of the quercetin will be expected to be a new means of prevention and treatment of cataract. The article takes in the research progress of that quercetin on the lens with antioxidation, inhibiting aldose reductase and anti- apoptosis and its mechanisms.

Objective To explore the feasibility of language sample analysis in assessment of language development in children in order to provide evidences for its clinical application. Methods The study population consisted of a cross-sectional sample of 50 preschool Putonghua-speaking children aged 4 to 6 years. The data on measurement of utterance length (MLU) and lexical diversity (D) were computed from 20 minutes' conversational language samples, and correlation analysis was conducted among MLU, D, age, Wechsler Preschool and Primary Scale of Intelligence (WPPSI) and Peabody Picture Vocabulary Test (PPVT). Splited sample analysis by comparing MLU of first one hundred utterances and MLU of last one hundred utterance, D of odd lexicals and D of even lexicals were conducted to test the validity of language sample indictors. Results MLU and D development of the preschool Putonghua-speaking children were positively related to age. MLU, D, age, verbal intelligence quotient (VIQ) and PPVT were associated with each other (P<0.05 or P≤0.01) except age and VIQ(P>0.05). There were significant correlations between MLU of first one hundred utterances and MLU of last one hundred utterances and between D of odd lexicals and D of even lexicals(P=0.000). Conelusion Language sample analysis proves to be feasible in assessment of language development in preschool children aged 4 to 6 years.

Medicine, Chinese Traditional ; Mind-Body Relations, Metaphysical

Animals ; Brain Ischemia ; complications ; physiopathology ; Excitatory Amino Acid Antagonists ; pharmacology ; Humans ; Infant, Newborn ; Leukomalacia, Periventricular ; etiology ; Receptors, N-Methyl-D-Aspartate ; antagonists & inhibitors ; physiology ; Signal Transduction ; physiology

Objective To investigate the role and mechanism of retinoblastoma protein-associated proteins 48 (RBBP4) in HIV-1 latency.Methods CEM-Bru cells latently infected with HIV-1 were stimulated with 25 ng/ml of tumor necrosis factor alpha (TNF-α) in combination with 10 ng/ml of interleukin-2 (IL-2).Chromatin immunoprecipitation (ChIP) was performed to detect the changes in RBBP4 and in histone deacetylases 1 and 2 (HDAC1/2) binding to long terminal repeat (LTR).Binding activities of HDAC1/2 and RNA polymerase Ⅱ (RNA Pol Ⅱ) to LTR and acetylated histone H3 at LTR region were detected by ChIP after partially interfering the expression of RBBP4 in CEM-Bru cells with electroporation.Initiating and elongated transcripts were measured by RT-PCR.Results The binding activities of RBBP4 and HDAC1/2 to LTR in HIV-1 latently infected cells were enhanced significantly as compared with those in TNF-α and IL-2 co-stimulated cells.Fewer RBBP4 and HDAC1/2 bound to LTR following the interference of RBBP4 expression, which was accompanied with enhanced histone acetylation and strengthened binding activity of RNA Pol Ⅱ to LTR.Moreover, more initiating transcripts were detected in HIV-1 latently infected cells after the RBBP4 expression was interfered by electroporation.Conclusion RBBP4 contributes to the maintenance of HIV-1 latency, in which HDAC1 and HDAC2 might be involved.