Objective To investigate the clinic significance of serum carbohydrate antigen ( CA)125 for cirrhosis. Methods 88 patients with type B posthepatitic cirrhosis (male 46,female 24,average age 45?24 years) were divided into three group (A stage35,B stage 28,C stage 25) according to Child-pugh integration. 36 healthy persons as normal controls were studied(male 20,female 16,average age 42?22 years). Serum CA125 was measured by ELISA. We investigated the alteration of serum CA125 with hepatic functional classification. Results The levels of serum CA125 in cirrhosis patients were markedly higher than those in control subjects(P

Toll-like receptor( TLR) ,which belongs to pattern recognition receptor,is type I transmem-brane glycoprotein. TLR activates natural immune and induces several cytokines. Foreign studies have showed that bacterial infection is closely related with TLR. In this paper,the relationship between TLR and bacterial in-fection is reviewd.

As an efficient gene transfer vehicle lentiviral vector has been widely used in therapy research. Comparing with other retrovirus vectors, lentiviral vectors have the unique ablility of transfecting nondividing cells and terminal differentiated cells. In addition, lentiviral vectors can accommodate two or more promoters and can carry larger foreign gene insertions. Now the new generation of lentiviral vectors encoding transcriptional control sequence provides effective means for the regulation of foreign gene expression. The development of lentiviral vectors and its application in the gene therapy field were summarized.

A pyelonephritis model of mouse is made by c. albicans infection. The determination of im-mune functions in model show that, both proliferation response of T cell to ConA and IL-2 activ-iting of spleenocytes of model animal to inductionwith ConA increased at 30 days after injected.The proliferation response of B cell to stimulation with LPS inhanced from 15 through 30 days,primary Ab response of model animal to SRBC stimulation inhanced between 15-30 days afterimmunization. DTH response to stimulation with c. albicans protein Ag raised since 15 days andup to peak at 30 days. Agglutination titer of serum raised up 15 days, and remained at higherlevel untill 30 days.

Objective To study the immunological regulation of Nasal Healing Spraying Agent (NHSA). Methods Test models were setup by irradiation. The models were administrated with NHSA by lavage and immune adherence of red cells was tested by chaplet experiment with blank and positive control. Results NHSA could increase Red Blood Cell-C3b Receptor Rosette (RBC-C3bRR) and reduce Red Blood Cell-Immune Complex Rosette (RBC-ICR) in mice. Compared with blank control group, the results in the high dose group and middle dose group were statistically significant (P<0.01). The result also showed that NHSA could elevate the quantity and activity of Red Blood Cell-C3b Receptor (RBC-C3bR) and reduce the Immune Complex (IC) to enhance the red cell immune function in mice effectively. Conclusion NHSA could elevate the RBC immunity function in mice and increase immunoregulatory function.

BACKGROUND: One of the basic functions of bone is its adaptation to mechanical loading environment. Bone cells are the mechanosensitive cells in bone tissue. However, the mechanisms by which mechanical signals are transduced to chemical signals that influence bone growth and metabolism remain unidentified.OBJECTIVE: To understand the mechanotransduction pathways in osteoblasts and osteocytes, and to provide a theoretical basis for further study. METHODS: PubMed database was retrieved by computer with key words of osteoblast, osteocyte, bone cells, mechanical stress. According to inclusion criteria, 69 articles were included to summarize the transduction of mechanical signals of bone cells. RESULTS AND CONCLUSION: One of the basic functions of bone is its adaptation to mechanical loading environment. Bone cells are mechanosensitive cells. However, how the transduction of mechanical signals of cells realizes and how regulates skeleton remain poorly understood. Studies confirmed that due to the construction features and cell location of skeleton, osteoblasts and osteocytes are the most important mechanosensitive cells in bone tissue. The process of mechanotransduction can be divided into four distinct steps: ① mechanocoupling; ② biochemical coupling; ③ signal transmission; ④ effector response of bone cells. Through these four steps, the loads acting on the bones are transduced into biochemical signals, and then change the function of bone cells, finally induce the changes of bone structures to adapt the mechanical environment. The regulatory mechanisms of mechanical signals in bone marrow mesenchymal stem cells require further investigation.

Objective To investigate characteristics of endometriotic lesions clone with various pathological subtypes by analyzing the polymorphism of X chromosome linked human androgen receptor allele (HUMARA). Methods Eight frozen tissues of endometriotic leisons were collected from 6 patients who received laparotomy or laparoscopy surgery in Peking Union Medical College Hospital from Nov. 2008 to Jun. 2009. Fifty specimens of epithelial cells from single endometrial glands were isolated and collected from endometriotic lesions by using laser capture microdissection. HUMARA was applied as the gene marker of clonal analysis. Nested palymerase chain reaction, double-enzyme digestion reaction with two methylationsensitive restriction endonuclease (Hha Ⅰ and Hpa Ⅱ), and the automated gene sequencing technique were utilized in this study to evaluate the characteristics of endometriotic lesions clone. Results Of 50 specimens of isolated glands, 34 were informative for clonal analysis, and all of which showed monoclonality. Of 3 ovarian endometriotic tissues, one tissue of HUMARA showed unuseful information, the other 2 ovarian endometriotic tissues respectively had 4 and 7 informative specimens of gland epithelial cells, and all of the glands from each tissue showed uniform clonal pattern. Two peritoneal endometriotic tissues had 1 and 5 informative specimens from individual glands, respectively; and the clonal patterns in 5 glands from the single lesion were divergent. Two abdominal wall endometriotic tissues had 7 and 6 informative specimens,respectively; and variable clonal patterns were seen in different glands from each lesion. One deep infiltrating endometriotic lesion had 4 informative specimens of isolated glands, and all of them showed unique clonal pattern. The disparate clonal patterns were found in endometriotic lesions with variable pathological subtypes, even arising from the same patient. Conclusions The epithelial cells from individual endometriotic gland showed monoclonality , and different glands from the same endometriotic lesion might show divergent patterns.

Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; CD56 Antigen ; metabolism ; Cyclophosphamide ; therapeutic use ; Doxorubicin ; therapeutic use ; Esophageal Neoplasms ; drug therapy ; metabolism ; pathology ; radiotherapy ; Follow-Up Studies ; Humans ; Leukocyte Common Antigens ; metabolism ; Lymphoma, Extranodal NK-T-Cell ; drug therapy ; metabolism ; pathology ; radiotherapy ; Male ; Middle Aged ; Poly(A)-Binding Proteins ; metabolism ; Prednisone ; therapeutic use ; T-Cell Intracellular Antigen-1 ; Treatment Outcome ; Vincristine ; therapeutic use

Objective To investigate the change in natural kill cell,T-ly mphocyte subset counts and effect of recovery after homologous and autologous blood transfusion.Methods 50 patients undergoing lung cancer operation were randomly divided into two groups:group A received autologous blood transfusion with 400ml and group H received homologous blood transfusion with 400ml.Venous blood samples were taken before surgery,before blood transfusion and on the 1st and 5th postoperative day for determination of T-ly mphocyte subsets and natural kill cell counts by flow cytomet.The existent ratio of 1～3 years were followed up.Results The NK cell,CD+_3 and CD+_4 counts and CD+_4/CD+_8 ratio decreased significantly on the 1st postoperative day in both groups(P

Objective To explore the causes of bile duct injury during laparoscopic cholecystectomy and its treatment.Methods From January 1998 to February 2007,totally 8600 cases of LC were performed in our hospital.Bile duct injury occurred in 36 of them,among which,the common hepatic duct was cut in 20 cases,the common bile duct was severed in 4 patients,the common hepatic duct was cut and freed in 4;incomplete clipping of the common hepatic duct or common bile duct occurred in 3 and 1 cases respectively;3 cases had injury to the conjunction of the cystic duct and common hepatic duct;electrical burn injury happened in 1 patient.Thirty one of the injured cases were detected during the laparoscopic surgery,while the other five were found because of jaundice or biliary leakage.The patients received bile duct repair and T tube drainage(24),T tube drainage(4),Roux-en-Y bowel biliary anastomosis(4),bile duct anastomosis(1),or removal of the titanium clips after the accidents.Results One of the patients who received bile duct anastomosis developed biliary stenosis after the T tube was withdrawn in 2 months after the surgery,Roux-en-Y bowel biliary anastomosis was thus performed 3 months later.Two patients who underwent Roux-en-Y anastomosis developed anastomotic stenosis after the operation,and thus received a second anastomosis in 11 months.These 3 patients who received totally 3 operations,were followed up for 2 to 3 years,none of them developed cholangitis or biliary stones.One patient in this series had refractory cholangitis,jaundice,and liver function impairment,and was cured after 1-year anti-inflammation and liver support therapy.In the other 32 patients,an 8-to 36-month follow-up(mean,16 months) was achieved,during which none of them showed any complications.Conclusions Bile duct injury can be due to lacking experience and knowledge of the complications of laparoscopic cholecystectomy,inappropriate enrollment of the patients,inaccurate operation,misuse of the surgical instruments,or being unable to discern the Calot's triangle.Strict indications for the operation,advanced training for young doctors,and appropriate timing for conversion to an open surgery are necessary to decrease the rate of bile duct injury.