Adult ; Ear Canal ; pathology ; Ear Neoplasms ; Female ; Humans ; Neurofibromatoses

To study the effect of total matrines and extracts from Periplaneta americana on negative endometrial cancer cell JEC of progesterone receptors. After detecting the effect of total matrine, extracts from P. americana and their combination on JEC cells' growth inhibition, cell cycle, P53 and c-erbB-2 gene protein expressions through MTT, flow cytometry instrument and Western blot method, the author found that, (1) MTT: total matrines and extracts from P. americana could inhibit the growth of JEC cell, with significant increase in the inhibitory effect in the combination group. (2) Flow cytometry instrument: the cell cycle at G0/G1 increased after the treatment with total matrines, the cell cycle at G2/M increased after the treatment with extracts from periplaneta americana, and the ratio of G0/G1 cell cycle in the combination group was significantly higher than the other groups, with inhibition in cell growth and statistical difference in inter-group comparison (P < 0.05). (3) Western blot: the expression level of P53 increased and c-erbB-2 decreased after the treatment with total matrines, extracts from P. americana and their combination on JEC cell, with statistical difference in inter-group comparison (P < 0.05). The above results suggested that total matrines, extracts from P. americana and their combination could induce cell cycle arrest and inhibit the growth of JEC cell by up-regulating P53 and down-regulating the c-erbB-2 level.
Alkaloids ; therapeutic use ; Animals ; Cell Line, Tumor ; Endometrial Neoplasms ; chemistry ; drug therapy ; pathology ; Female ; Flow Cytometry ; Humans ; Periplaneta ; Phytotherapy ; Plant Extracts ; therapeutic use ; Quinolizines ; therapeutic use ; Receptors, Progesterone ; analysis ; Tumor Suppressor Protein p53 ; analysis ; physiology

BACKGROUND: The application of biological response modifiers (BRMs) has become the fourth cancer treatment following surgery, chemotherapy and radiotherapy. Polysaccharide-peptide (PSP) is a biological response modifier substance playing a special role in cancer treatment, which has been used in the treatment of gastric cancer, lung cancer, esophagual can cer, etc. With good results. OBJECTIVE: To observe the effect of PSP on the immune function and quality of life (QOL) in patients receiving chemotherapy for gynecological malignancies. DESIGN: A comparative observation. SETTING: Department of Obstetrics and Gynecology, Shanghai Jiaotong University Affiliated First People's Hospital. PARTICIPANTS: Forty patients who had been operated on for gyneco logical malignancies were selected from the Department of Obstetrics and Gynecology, Shanghai Jiaotong University Affiliated First People's Hospital from June 1999 to December 2002, including 36 cases of ovarian cancer with an average age of 52 years and 4 cases of endometrial cancer with an average age of 54 years. Patients with ovarian or endometrial cancer suffered from no contraindication in chemotherapy postoperatively were enrolled, otherwise were excluded.METHODS: The 40 patients were divided into study group (n=20) and control group (n=20) by matching according to stage and age. In the study group, the patients were treated with PSP capsules in addition to chemotherapy, whereas those in the control group were treated with chemotherapy only. PAC (phenacetin, spirin, caffeine) and MFP (melphalan, 5-fluorouracil, medroxyprogesterone acetate) regimens were adopted for the ovarian cancers and endometrial cancer respectively. The experiment lasted for two months from the beginning of the second course of chemotherapy to the beginning of the fourth one.MAIN OUTCOME MEASURES: The indexes of blood immune function and QOL were observed before and after treatment.RESULTS: All the 40 patients were involved in the analysis of results. ①The average Karnofkky's scores before and after treatment were (84±9.6)and (90±8.6) in the study group (P ＜ 0.05), and (83±9.2), (80±12.8) in the control group (P ＞ 0.05). The average Karnofkky's score was 10 credits higher in the study group than in the control group (P ＜ 0.05). ② The CD4+,CD4+/CD8+ and natural killer cells after treatment in the study group were all obviously higher than those in the control group (28.14±4.10, 0.96±0.17,23.80±4.90; 23.12±3.97, 0.75±0.21, 5.32±3.90) (P ＜ 0.05, 0.01).CONCLUSION: PSP can improve the cellular immunity and QOL of patients with ovarian or endometrial cancers.

Objective To set up an apoptosis model of prostate cancer cell line and to clone and study the apoptosis related genes. Methods An apoptosis model of prostate cancer cell line DU-145 has been set up through induction by all transretinoic acid (ATRA).During the process of cell apoptosis the apoptosis-related gene was cloned by means of improved PCR-based subtractive hybridization from the apoptosis prostate cancer cell line DU-145 prostate cancer cells. Results During the process of DU-145 cell apoptosis,c-erb B-2 expression,TNF genes and some unknown apoptosis-related gene were observed.This has been accepted by Genebank,the accession number being AF174394. Conclusions ATRA-induced apoptosis of DU-145 cells is a complex process with multiple genes involved,some of which being unknown yet.

Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Male ; Mucopolysaccharidosis II ; genetics ; Pedigree

Objective To develop a high performance liquid chromatography (HPLC) for the determination of fourteen dyes in hair dying formulations.Methods Dyes were separated on a amide bonded C_(16) silica column (250 mm?4.6 mm,5?m),the target analytes were ion-paired prior to HPLC analysis with elution employing methanol-0.025 mol/L phosphate buffer (pH=6.0) containing 1 g/L 1-heptanesulfonic acid sodium salt as mobile phase and detection by a photodiode array detector with the detection wavelength of 230 nm and 280 nm.The flow rate was 1.0 ml/min and the column temperature was 25℃.Results The linear range were 10-500 mg/L,the detection limits were 0.3-2.0 mg/L,the coeffieients of variation were less than 10%(except 2-amino-6-chloro-4-nitrophenol at low concentration) and the recovery rates were 71.3%-118.5%.Conclusion The methods of high performance liquid chromatography introduced in this paper is simple,rapid,accurate and is applicable to the analysis of various hair dyes.

OBJECTIVETo compare the changes of nucleus pulposus after in vitro culture of rabbit whole intervertebral disc and spinal motion segment.

METHODSTwenty-one New Zealand white rabbits which were randomly divided into organ group with 8 rabbits and segment group with 13 rabbits. Fifty intervertebral discs and 50 spinal motion segments were harvested respectively under aseptic conditions from two groups. These specimens were maintained in organ culture with hyperosmotic media (410 mOsm/kg), then 10 discs of the two groups were observed respectively by HE staining, immunohistochemistry of collagen type III, proteoglycan content and cells viability of nucleus pulposus before culture and at 3, 7, 14, 21 days after culture.

RESULTSHE staining showed the intervertebral disc tissue structure remained intact after culture of 21 days organ group and 14 days segment group,but there was severely degenerated of 21 days segment group. The intensity value of type II collagen immunohistochemical staining in the nucleus pulposus were not changed significantly between 21 days organ group and 14 days segment group (P > 0.05), but the staining of segment group at 21 days became shallower, there was significant difference compared with before each time points and organ group at 21 days (P < 0.05). PAS/AB staining of proteoglycan of nucleus pulposus showed that there were not decrease of tinting strength of two groups within 7 days, but the strength weakened slightly of two groups at 14 days, and the tinting strength became weaker at 21 days segment group, the change is more obvious than the organ group. The intensity value of fluorescence staining of nucleus pulposus cells was not changed significantly within 7 days of two groups (P > 0.05), the intensity value decreased slightly at 21 days organ group and 14 days segment group, but there were no significant difference compared with before time points (P > 0.05) however at 21 days segment group the intensity decreased as cells viability of nucleus pulposus decreased,and there was a significant difference compared with before each time points and organ group at 21 days (P < 0.05).

CONCLUSIONIt is not obviously degenerated of the discs of organ group cultured within 21 days and segment group cultured within 14 days, but there was significant degeneration of the intervertebral disc of segment group after cultured 21 days, so the rabbit spinal motion segment can be used on research about the biomechanics of intervertebral disc as a vitro experimental model within 14 days.

Animals ; Collagen Type II ; analysis ; Female ; Immunohistochemistry ; Intervertebral Disc ; chemistry ; pathology ; Male ; Organ Culture Techniques ; Rabbits

Objective To understand the available preventive strategies of unplanned endotracheal extubation (UEX) among adult patients.Methods Twelve nurses were in-depth interviewed and data were processed and analyzed using categorization analysis method.Results Major themes were identified as follows:the incidence rate of UEX,tube fixation,efficacious physical restraint,appropriate sedation and training for younger nurses.Conclusions Nursing leaders should further standardize nursing process related to prevention of UEX,strengthen training for nurses,choose appropriate fixation method for patients and promote physical restraint and sedation care to prevent UEX and improve patient clinical outcomes.

BACKGROUND:Studies have shown that polyethylene polymer-synthesized ureteral stents have good biocompatibility in vivo, but the side effects are found to induce the body to produce inflammatory, pyrogenic, and al ergic reactions. Therefore, studies have mainly aimed to explore the biocompatibility, toxic and side effects, inflammation of newly developed ureteral stents synthesized by L-lactic acid, glycolide, and barium sulfate. OBJECTIVE:Based on the biocompatibility comparisons on cel toxicity test, inflammatory reaction, al ergic reaction, pyrogen reaction and mortality after implantation between the usage of polyethylene material and L-lactic acid, glycolide, barium sulphate syntheses, to provide a better reference to introduce a new clinical ureteral stent material. METHODS:There were three groups in the experiment:blank control group, new material group, polyethylene group. Cel s were cultured in normal medium, leach liquid of L-lactic acid, glycolide, barium sulphate syntheses and leach liquid of polyethylene, respectively. RESULTS AND CONCLUSION:The toxic effects were significantly enhanced in the urethral epithelial cel s that grew in the leach liquids of two materials compared with the blank control group (P<0.05), but the two kinds of materials had no significant statistical difference in the toxicity test (P>0.05). Hematoxylin-eosin staining results showed that there were obvious inflammatory infiltrations in muscle tissue and the number of neutrophils and eosinophils were increased when the two kinds of materials were implanted in the rats for 2 and 6 weeks (P<0.05), but the inflammatory infiltration and tissue damage in the new material group was less than that in the polyethylene group (P<0.05). ELISA results showed that the serum concentrations of interleukin-10 and interleukin-23 were significantly increased when the two kinds of materials were implanted in the rats for 6 weeks (P<0.05), but the content of inflammatory cytokines in the new material group was less than that in the polyethylene group (P<0.05). In the new material group, there was only one rat that developed al ergic reaction and there was no pyrogen reaction or death;however, in the polyethylene group, there were three rats with presence of al ergic reaction and one rat with pyrogen reaction but no death. These findings indicate that the new ureteral stent material synthesized with L-lactic acid, glycolide and barium sulphate can reduce inflammation reactions, al ergic reactions and pyrogen reactions to the body, and has better biocompatibility than polyethylene composite material.

Objective To evaluate the clinical diagnostic contribution of 18 F-FDG PET/CT in giant cell arteritis with initial presentation as fever of unknown origin (FUO).Methods Eight cases with initial presentation as FUO diagnosed with the contribution of PET/CT were retrospectively studied in Peking Union Medical College Hospital.The radiologic manifestations of PET/CT were analyzed.Results Eight patients (4 men and 4 women) with average (63 ± 7) years (range from 55-75 years) were included in our study based on the criteria.Non-specific clinical symptoms were common in these patients,including fatigue,night sweat and weight loss.They all suffered from anemia of chronic disease.Not surprisingly,the inflammatory parameters were elevated significantly in all patients.The medical history,physical examination and routine lab and radiologic examinations couldn't reveal the causes of fever.PET/CT was performed in all of them,which demonstrated intense 18F-FDG uptake in the area of aorta and its major branches with maximal standard uptake value (SUVmax) 2.1-4.6 (3.6 ± 0.9).Immunosuppressive agents were effective to control the inflammation activity.The SUV decreased significantly after treatment in the follow-up PET/CT.Conclusions PET/CT has demonstrated high yield of diagnostic contribution in giant cell arteritis with initial presentation as fever of unknown origin.As to elderly FUO patients presenting with prominent inflammatory reaction,PET/CT may provide potential value to differentiate diagnosis from maligancies.