PURPOSE To sutdy the effects of dibutyl pathalate (DBP) on the proliferation and apoptosis of leukemic cells from patients suffering from acute leukemia. METHODS The cell culture in vitro was used to study the effect of DBP on the proliferation of leukemic cells, while agrose gel electrophoresis of DNA fragments was used to study the effect of DBP on apoptosis of leukemic cells. RESULTS DBP could inhibit the proliferation of leukemic cells got from patients suffering from acute leukemia in vitro. The percentage of inhibition were 24.24% and 36.33% respectively when leukemic cells were exposed to 50?g/ml and 200?g/ml DBP for 24 hours. Leukemic cells from acute myelogenous leukemia were more susceptive to DBP than those from acute lymphocytic leukemia. DBP also induced the leukemic cells from patients to die via apoptosis and showed typical "ladder" of DNA fragments for apoptotic cells in agrose gel electrophoresis. CONCLUSION DBP could clear the leukemic cells in bone marrows of patients suffering from acute leukemia by suppressing the growth of leukemic cells and inducing them to die via apoptosis.

OBJECTIVE:To discuss the research direction of the database of traditional Chinese drugs and to facilitate the modernization of the traditional chinese medicine information.METHODS:The current domestic traditional chinese medicine databases are classified and sorted systematically and the problems occurred in the database construction were dis-cussed.RESULTS&CONCLUSION:The developmental tendency of traditional chinese medicine database is characterized by setting up and evolving the research&development(R&D)information system of traditional chinese medicine,improving the shared platform of traditional chinese medicine database established in the internet,and establishing and improving the tradi-tional chinese medicine market information system,etc.

Physical constitution theory is an important part of traditional Chinese medicine theory. Physical constitution is associated with the incidence, development and prognosis of diseases. Gene polymorphism is a result of the interaction between internal and external environments during the human evolution, and it is the reason for differences in biological characteristics and disease susceptibility of individuals. Current status of the research on physical constitution theory, lung cancer syndromes and gene polymorphism are summarized in this paper. Exploring lung cancer syndromes from the point of view of gene polymorphism may reveal the scientific connotation of lung cancer syndromes, and provide new evidence and method for diagnosis of lung cancer.

Objective To study the effects of letrozole and clomiphene on the treatment of ovulation induction and the changes of reproductive hormone in the patients with polycystic ovary syndrome.Methods In Zhenhai District People's Hospital from January 2015 to December 2016, 100 cases with polycystic ovary syndrome as the research object in this study, were randomly divided into the control group and the experimental group, 50 cases in each group.The control group were treated with clomiphene, the experimental group were given letrozole combined clomiphene.The levels of reproductive hormones, ovulation rate and pregnancy rate were compared in the two groups.Results The ovulation rate was 90%, pregnancy rate was 46%, the numbers of follicles was(1.2±0.4).In the control group, the ovulation rate was 72%, the pregnancy rate was 22%, and the number of follicles was(2.2±0.5).The results showed that the ovulation rate and pregnancy rate in the experimental group were significantly higher than those in the control group, with statistical significance(P<0.05).The number of follicles in the control group was significantly higher than that in the control group, with statistical significance(P<0.05).There was no significant difference between the experimental group and the control group in the time of follicular maturation, which was not statistically significant.The levels of reproductive hormones in the experimental group were significantly lower than those in the control group, with statistical significance(P<0.05).Conclusion Letrozole combined clomiphene can improve the ovulation rate and pregnancy rate, reduce the reproductive hormone level, which has clinical application value.

Objective To investigate the effect of Daying-35 combined with metformin on ovulation induction after polycystic ovary syndrome, and to summarize the clinical experience.Methods Forty patients with polycystic ovary syndrome were treated with Daying-35 and treated as control group.Forty-five patients were treated with meta-35 combined with metformin and treated as observation group.After treatment, Level and ovulation induction, selected patients were our hospital in January 2016 to December 2016 between the treatment.Results There were no significant differences in T, FSH, LH, E2 and other hormone levels between the two groups before treatment.After treatment, the improvement of the treatment group was significantly more obvious;compared with the two groups of ovarian hyperstimulation syndrome and The rate of pregnancy was 47.5% in the observation group and 15.0% in the control group.The difference between the two groups was significant(P<0.05).Conclusion The effect of Daying-35 combined with metformin on ovulation induction after polycystic ovary syndrome was found to improve the progesterone level and improve the clinical status of the patients.Making the ovulation situation improved, improve the pregnancy rate, it is worth clinical reference.

AlM: To observe the influence ofphacoemulsification on corneal endothelial cell in patients with the different level of HbA1c.METHODS:With case-control study, 164 eyes from 115 cataract patients were divided into four groups according to the preoperative HbA1c level. Control group A: 43 eyes from 30 cases without diabetes ( HbA1c≤6. 5%). Diabetes groups:group B was consisted of 38 eyes from 26 cases(HbA1c≤6. 5%), 40 eyes of 28 case was in group C (6. 5% 8. 0%). Corneal endothelial microscopy was used to detect the parameters like endothelial cell density ( CD ) , coefficient of variation ( CV ) , percentage of regular hexagonal cells (6A) between pre-operation and post-operation at 1d, 1, 2wk, 1mo. The results were analyzed.RESULTS: The endothelial cell density, CV and 6A cell had no significant difference in four groups before treatment (P>0. 05). The CD and 6A were decreased and CV was increased in all groups after operation of 1d, 1, 2wk and 1mo. The difference was statistically significant (P< 0. 05). There were statistical differences of 6A and CV in diabetes groups compared with control group ( P<0. 05). The decreasing of CD between group A and group B had no difference (P>0. 05). There were statistical differences of CD in group C and group D compared with group A (P<0. 05). There were statistical differences of CD, 6A and CV within diabetes groups (P<0. 05). CONCLUSlON: Cataract phacoemulsification had certain degree damage on corneal endothelial cell. Corneal endothelial appeared the minimal injury when the postoperative HbA1c≤6. 5%. For diabetic cataract patients, the higher HbA1c before, the heavier damaged after the surgery.

Human immunodeficiency virus type 1 (HIV-1)-specific cytotoxic T lymphocytes (CTLs) play a critical role in the control of HIV-1 infection and replication. HIV-1 evades CTL mediated pressure through viral escape mutations within targeted CTLs epitopes or flanking regions, but this process is usually associated with a viral fitness cost. The mutated epitopes may weaken the level of the original CTL responses, however, the immune system holds potential to mount denovo responses towards those newly emerged epitopes. This article briefly summarizes recent research progress regarding the competition between HIV-1's escape mutations and host CTL responses.
Animals ; HIV Infections ; genetics ; immunology ; HIV-1 ; genetics ; immunology ; physiology ; Histocompatibility Antigens Class I ; genetics ; immunology ; Humans ; Mutation ; T-Lymphocytes, Cytotoxic ; immunology ; virology

Objective To establish a cell line of human ovarian cancer, and study its characterization. Methods The cell line was established by the cultivation of subsides walls, and kept by freezing. The morphology was observed by microscope and electromicroscope. The authors studied its growth and propagation, the agglutination test of phytohemagglutinin (PHA), the chromosome analysis, heterotransplanting, immuno histochemistry staining, the analysis of hormone, the pollution examination and the test of sensitivity to virus etc. Results A new human ovarian carcinoma cell line, designated ovarian mucinous cystadenocarcinoma 685 (OMC685), was established from mucinous cystadenocarcinoma. This cell line had subcultured to 91 generations, and some had been frozen for 8 years and revived, still grew well. This cell line possessed the feature of glandular epithelium cancer cell. The cells grew exuberantly, and the agglutinating test of PHA was positive. Karyotype was subtriploid with distortion. Heterotransplantations,alcian blue periobic acid schiff (AbPAS),mucicarmine,alcian blue stainings, estradiol (E 2) and progesterone were all positive. Without being polluted, it was sensitive to poliovirus Ⅰ, adenovirus 7 and measles virus. Conclusions OMC685 is a distinct human ovarian tumous cell line.

A prospective study was conducted for 91 cases of fever patients after neurosurgical procedures during the period of January-December 2013.They were divided into non-infection (n =42) and infection (n =49) groups according to whether there was infection complication.And another 51 nonsurgical hospitalized patients without fever or infection were selected as control group.The levels of procalcitonin (PCT),C-reactive protein (CRP) and white blood cell (WBC) were detected respectively.Statistical analysis showed that the level of PCT had no significant difference between non-infection and control groups (P ＞ 0.05).However,it was markedly elevated in infection group than non-infection group (P ＜ 0.01).The level of CRP was significantly different between non-infection and control groups (P ＜ 0.01).And it was the same between infection and non-infection groups.The level of WBC had significant difference between non-infection and control groups (P ＜ 0.05) and infection and non-infection groups (P ＜ 0.01).The receiver operating characteristic (ROC) curve showed that either sensitivity or specificity of PCT was the highest.Compared with CRP and WBC,PCT may identify more accurately the causes of fever after neurosurgical procedures.

Objective To determine the optimized fractionated radiation schedule by comparing the dose-response relationship between different fractionated radiation schedules with a total dose of 40 Gy or 60 Gy in subclinical breast tumor.Methods Balb/c nude mice bearing subclinical human breast cancer (injected subcutaneously into the hind legs with 1.5 × 105 or 3.1 × 105 exponentially growing MCF-7 cells) were assigned randomly to blank control group (without radiation),conventionally fractionated radiation group (200 cGy,once daily,10 times/week),hyperfractionated radiation group (160 cGy,twice daily with an interval of 6 h,5 times/week),first hypofractionated radiation group (300 cGy,once daily,5 times/ week),and second hypofractionated radiation group (400 cGy,once every other day,3 times/week) ;the total dose was 40 Gy or 60 Gy.The measurement indices were tumor formation rate,short-term tumor control rate,long-term tumor control rate,the time of tumor recurrence,and the maximum diameter of the bottom of tumor.The observation lasted 24 weeks.Data were compared between these groups by chi-square test.Results With a total dose of 40 Gy (the number of injected cells was 1.5 × 105,the tumor formation rate of the blank control group was 2/8),hyperfractionated radiation was the optimized schedule.With a total dose of 60 Gy (the number of injected cells was 3.1 × 105,the tumor formation rate of the blank control group was 11/11),the first hypofractionated radiation (300 cGy,once daily,5 times/week) was the optimized schedule (P =0.001);the short-term and long-term tumor control rates of the conventionally fractionated radiation group,hyperfractionated radiation group,second hypofractionated radiation group,and first hypofractionated radiation group were 0/0 (tumor formation rates:8/8 and 8/8),50％/25％ (tumor formation rates:4/8 and 6/8),25 ％/25 ％ (tumor formation rates:6/8 and 6/8)),and 67 ％/67 ％ (tumor formation rates:4/12 and 4/12),respectively.Conclusions The optimized fractionated radiation schedule for subclinical breast cancer and its total dose vary with the number of injected tumor cells.When the tumor formation rate is 100％,hypofractionated radiation (300 cGy,once daily,5 times/week) is the optimized schedule in terms of long-term tumor control.