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 explore the effect of hepatitis B virus(HBV) on the expression of apolipoprotein A1 (ApoA1) and its regulatory mechanism.Methods RT-PCR and Western blot were used to measure the expression of ApoA1 in HepG2 and HepG2.2.15 cells,serum ApoA1 and high density lipoprotein cholesterol(HDL-C) levels in patients with HBV infection and in healthy individuals were measured by biochemical analyzer,statistical difference was analyzed by SPSS13.0,HepG2 cells was co-transfected with ApoA1 promoter containing the luciferase gene and HBV infectious clone pHBV1.3,luciferase activity was measured,expression of ApoA1 in HepG2 cells was measured by RT-PCR and Western blot after transfected with pHBV1.3.Results Expression of ApoA1 mRNA and protein was lower in HepG2.2.15 cells than in HepG2 cells,serum ApoA1 and HDL-C levels were much lower in HBV patients as compared to healthy individuals( P＜0.05 ),HBV represses ApoA1 gene promoter activity,ApoA1 mRNA and protein expression in HepG2 cells.Conclusion HBV can inhibit the expression of ApoA1 bothin vivo and in vitro.

We enrolled 60 patients with American Association of Anesthesiologists grade Ⅰ - Ⅱ undergoing unilateral total knee arthroplasty. All patients received combined epidural and spinal anesthesia,and a nerve stimulator was used to guide placement of a femoral nerve catheter. Patients were divided into three groups according to the catheter location on X-ray : psoas muscle group ( n = 18 ), iliacus muscle group (n = 19) and local group (n =23). Visual analog scale (VAS) pain scores were recorded at rest and with movement at 4, 24 and 48 h postoperatively and sensory blockade of the femoral, obturator and lateral femoral cutaneous nerves was recorded at 24 h.There were no significant differences in femoral nerve blockade among the three groups. Obturator nerve blockade was significantly better in the psoas muscle group than in the iliacus muscle and local groups, and was also better in the local group than in the iliacus muscle group. There was no significant difference in lateral femoral cutaneous nerve blockade between the psoas muscle and iliacus muscle groups, but there was better blockade in both these groups than in the local group. At 4 h postoperatively, VAS pain scores at rest were significantly lower in the psoas muscle group than in the iliacus muscle and local groups, but there were no significant differences in VAS pain scores with movement among the three groups. At 24 and 48 h postoperatively, VAS scores at rest and with movement were significantly lower in the psoas muscle group than in the iliacus muscle and local groups.

Objective To study the relationship between angiotensin Ⅱ type 2 receptor (AGTR2) gene single nucleotide polymorphisms and hypertension in patients with essential hypertension and renal hypertension.Methods Direct DNA sequencing was performed to detect the single nucleotide polymorphisms (SNP) in eighty patients with essential hypertension,eighty patients with renal hypertension and forty normal blood pressure controls.Results There was significant difference on A allele frequencies between essential hypertension group and control group ( 56.88％ [ 91/160 ] vs 30.00％ [ 24/80 ],x2 =15.44,P ＜ 0.001 ).A allele frequency had no correlation with renal hypertension (42.50％ [ 68/160 ] vs 30.00％ [ 24/80 ],x2 =3.52,P ＞0.05).There was no significant difference on SNP between essential hypertension group and renal hypertension group ( P ＞ 0.05 ).Conclusion A1675G signal nucleotide polymorphisms of AGTR2 may be associated with the development of essential hypertension,but has nothing to do with renal hypertension.