Ear ; Eosinophilic Granuloma ; Facial Neoplasms ; Humans ; Male ; Middle Aged ; Parotid Gland

Object To study comparatively the chromatographic fingerprint of Forsythia suspensa (Thunb ) Vahl in different producing aeras Methods Pyrolysis gas chromatography (PGC) was used Results The similar fingerprint of 13 samples (PGC) appeared The chromatographic overlap of them was over 89%, RSD

BACKGROUND: It has been proved that interleukin-18 (IL-18) involves in the development of acute cerebral infarction (ACI) and is positively correlated with the time of brain stroke onset, erythrocyte sedimentation rate (ESR), as well as neurological deficit and low-density value of brain CT.OBJECTIVE: To investigate the dynamic changes of serum IL-18 in the course of ACI.DESIGN: Verification analysis with patients as subjects and healthy volunteers as controls.SETTING: Department of neurology of a municipal hospital.PARTICIPANTS: Totally 46 inpatients (29 males and 17 females) with ACI were randomly selected from the Department of Neurology of People's Hospital, Maoming City, between December 2002 and January 2004.Meanwhile, 40 healthy controls (27 males and 13 females) were recruited from those who came to the hospital for routine physical examination. All the participants signed informed consent.METHODS: Fasting peripheral vein blood of 2 mL was collected from the patients on the 1st, 7rh, 14th and 21st days of ACI onset, and from healthy controls on the day of routine examination. The blood samples were centrifuged at 3 000 r/minute for 15 minutes at 4 ℃, and then the supernatant was collected for detecting IL-18 level by ELISA.MAIN OUTCOME MEASURES: The serum IL-18 level of patients on the 1st, 7th 14th and 21st days of ACI onset and that of healthy controls on the day of routine examination.RFSULTS: Totally 46 patients and 40 healthy controls were enrolled in this study and all data were statistically analyzed. The level of serum IL-18 was significantly higher in the patients with ACI than in normal controls on the 1st and 7th days of onset [(178±41) ng/L, (104±34) ng/L, (65±14) ng/L, P ＜ 0.01],but was similar on the 14th and 21st days [(88±36) ng/L, (72±33) ng/L,(65±14) ng/L, P＞ 0.05]. The level of serum IL-18 in ACI patients was significantly higher on the 1st day than on the 7th, 14th and 21 st days of the onset (P ＜ 0.05-0.01); moreover, it was also significantly higher on the 7th day than on the 21st day of the onset (P ＜ 0.05).CONCLUSION: The level of IL-18 increases obviously on the 1st day of ACI onset, and gradually decreases with the extended course of disease and time of treatment.

Objective To understand the effect of estradiol in different concentrations on proliferation of diverse mammary primary cells in vitro. Methods The primary cells of cancer tissue, the adjacent tissue to tumors and normal mammary tissue from patiens with breast cancer were obtained using collagenase digesting method. All the tissue samples were cultivated in vitro, and were given estradiol in different concentrations. The effect of estradiol on the proliferation of those primary cells was measured by MTT. Results Estradiol remarkedly promoted the proliferation of primary cells of cancer tissue and peritumor tissue in vitro, whose ER expression were positive. Whereas, the promotion effect of estradiol on the proliferation of normal mammary primary cells was relatively weak, and there was no correlation between the promotion effect with the expression of ER in cancer tissue. Conclusion The risks of occurrence and relapse of breast cancer would increase significantly when the concentration of estradiol is no less than 103 pmol/L in vivo.

In this study, in vitro chemosensitivity testing was conducted on primary cultured breast cancer cells from 96 patients with breast cancer, and the results showed that the cells from a few patients with primary breast cancer developed multidrug resistance (MDR) prior to the first chemotherapy exposure. All the cells from the recurrent cancer patients had MDR. The findings suggested that patients having MDR would benefit from high-dose chemotherapy (HDC) regimens. In vitro chemosensitivity screening, which was aimed at improving the therapeutic efficacy and minimizing side effects, helps in choosing individualized treatment for breast cancer.
Antineoplastic Agents/*pharmacology ; Breast Neoplasms/*drug therapy ; Breast Neoplasms/pathology ; Drug Resistance, Multiple ; Drug Resistance, Neoplasm ; Drug Screening Assays, Antitumor/*methods ; Neoplasm Recurrence, Local/*drug therapy ; Tumor Cells, Cultured

Objective To determine the effect of knocking down zebrafish faf1 gene by CRISPR/Cas9 editing technique.Methods gRNA was designed and prepared for the faf1 gene of zebrafish,and gRNA was mixed with Cas9 mRNA by microinjection into zebrafish single cell embryos.The mutant F0 generation zebrafish was screened out by enzyme digestion and gene sequencing.The mutant F0 was genetically outcrossed with the wild-type zebrafish to get the F1 heterozygous zebrafish,and the genotype of zebrafish was detected by microscopic observation.Results The faf1 gRNA and Cas9 mRNA were successfully prepared.The gRNA (gRNA6) located in the exon 6 of faf1 could shift the faf1 gene into frameshift mutations.The mutation type MU1 was screened out and the somatic cytochrome deposition delay was observed in this heterozygous zebrafish.At 4 d post fertilization (dpf),there were sarcomeric dysplasia and head shrinkage,increased hyoid angle and other craniofacial cartilage deformities.And the zebrafish died at 8 ～9 dpf.Conclusion CRISPR/Cas9 knocking out thefaf1 gene produces a new phenotype for zebrafish,with delayed pigment deposition and nodule-like change in tail muscle section.

Adult ; Bronchoalveolar Lavage ; methods ; Humans ; Male ; Pulmonary Surfactants ; therapeutic use ; Silicosis ; therapy

Object To study comparatively the fingerprint of Pogostemon cablin (Blanco) Benth. in different producing area and investigate the effect of pyrolysis temperature and pyrolysis time on the fingerprint Methods Pyrolysis gas chromatography (PGC) and fuzzy cluster analysis were used Results Both similarity and charecteristics were found in the fingerprint of P. cablin in different producing area. The methodological evalulation showed that this method had a good reproducibility, RSD≤2.75% Conclusion This method is simple, rapid and accurate. It is suitable for the quality control of the Chinese materia medica with the important role of pyrolysis temperature and pyrolysis time

Objective To know the antitumor effect and value of vinorelbine in chemotherapy with relapsed breast cancer.Methods To receive breast cancer tissue from primary and relapsed patients by surgery,then to obtain mammary cancer cells by collagenase.The antitumor effect of 5 chemotherapy drugs with breast cancer cells was measured by culture in vitro and MTT.Results With primary cancer cells from primary breast cancer,the antitumor effect of paclitaxel and docetaxel(sensitivity is 91.04%,92.54% respec- tively) is better than adriamycin,epirubicin and gemcitabine(sensitivity is 73.13%,74.63%,71.64% re- spectively;P

High resolution melting (HRM), an important technology for genotyping and mutation scanning, has broad prospects in the authentification of traditional Chinese medicine. This paper selected universal trnH-psbA primers and used HRM to establish a new methods for identification of Akebia herbs. PCR was conduct at the annealing temperature of 58 degrees C and 35 cycles. The range of the DNA template concentration, the primer concentration and the Mg2+ ion concentration were further analyzed. The results showed the Tm values of Caulis Akebiae was (81.84 ± 0.16), (85.28 ± 0.16) degrees C and Caulis Clematidis Armandii was (83.22 ± 0.19) degrees C and Caulis Aristolochiae manshuriensis was (81.67 ± 0.14) degrees C, (84.24 ± 0.10) degrees C with 5-125 mg - L-' DNA template, 0.4 μmol x L(-1) primer, 2.0 mmol x L(-1) Mg2+. This method can achieve the authentification of Akebia herbs and is simple, fast, high-throughput, visual.
Chemistry Techniques, Analytical ; methods ; DNA, Plant ; chemistry ; genetics ; Genotype ; Magnoliopsida ; chemistry ; classification ; genetics ; Phylogeny ; Transition Temperature