AIMTo investigate the effect of antisense oligonucleotides (ASON) of ryanodine receptor on proliferation and [Ca2+]i concentration of airway smooth muscle cells (ASMCs).

METHODSASMCs were cultivated with collagen enzyme digestion method. Different concentrations of ASON were added to the cultures with Lipofectamine 2000 to observe the ASMCs proliferation using MTS/PES method. The changes of ASMCs [Ca2+]i were also observed by flow cytometry. The expression of mRNA of subtypes of RyR was assayed by RT-PCR.

RESULTSRyR ASON restrained the proliferation of ASMCs, decreased the expression of RyR and reduced the concentration of [Ca2+]i.

CONCLUSIONRyR ASON could inhibit the proliferation of ASMCs by influencing the concentration of [Ca2+]i after excited.

Animals ; Calcium ; metabolism ; Calcium Channels ; Cell Division ; Cell Proliferation ; drug effects ; Cells, Cultured ; Myocytes, Smooth Muscle ; cytology ; drug effects ; metabolism ; Oligonucleotides, Antisense ; pharmacology ; Rats ; Respiratory System ; Ryanodine Receptor Calcium Release Channel ; genetics ; pharmacology

In order to prove the feasibility of preparation of the drug-incorporated stent by immersing stent wires in the monoclonal antibody (mAb) solution, fluorescence stain and image analysis were used to evaluate the L-PLA-coated stent. Absorption was measured using a radioisotope technique after preparing the mAb-incorporated stent, and the absorption curve was determined from the absorption data. In an in vitro perfusion circuit, the antibody was eluted from the stent matrices, and the related influence factors were evaluated based on the release data.
Absorption ; Alloys ; chemistry ; Antibodies, Monoclonal ; chemistry ; immunology ; Drug-Eluting Stents ; Graft Occlusion, Vascular ; immunology ; prevention & control ; Humans ; Lactic Acid ; chemistry ; Platelet Aggregation Inhibitors ; chemistry ; immunology ; Platelet Glycoprotein GPIIb-IIIa Complex ; immunology ; Polymers ; analysis ; chemistry ; Time Factors

AIMTo detect the expression of ryanodine receptor (RyR) subtypes in normol rat airway smooth muscle cells(ASMCs) and changes during chronic asthma formation.

METHODSASMCs were cultured with collagen enzyme digestion method. The expression of subtypes of RyR were detected by RT-PCR. Purified PCR product linked with pGEM-T vector to make DNA sequence assay. Chronic asthma model was made with OVA, the changes of RyRs detected by RT-PCR.

RESULTSAll subtypes of RyR were expressed in airway smooth muscle cells of normol rat. The expression of RyR1 increased obviously compared with control group (P < 0.05) on chronic asthma.

CONCLUSIONCo-expression of three subtypes of RyR in ASMCs of normal rat, indicate that there are complicated intercellular Ca2+ regulation mechanism in ASM, moreover RyR1 might play a role during asthma development.

Animals ; Asthma ; metabolism ; Bronchi ; Male ; Myocytes, Smooth Muscle ; metabolism ; Protein Isoforms ; genetics ; metabolism ; RNA, Messenger ; genetics ; Rats ; Rats, Wistar ; Ryanodine Receptor Calcium Release Channel ; genetics ; metabolism

Objective To evaluate calcium deficiency and demand in pre-puberty twins and to analyze the heritability of serum bone alkaline phosphatase(BALP).Methods A total of 73 pairs of twins aged 9-16 years were examined by BALP test.Microsatellite polymorphism Was used To diagnose the zygosity of twins,while both intraclass correlation coefficient method and Christian formula were perfortled to investigate heritability of serum BALP.Results The results of zygosity diagnosis displayed that 34 pairs of twins were monozygotic(MZ)twins and 39 pairs were dizygotic(DZ)twins.97.9％of the subjects appeared unusual in the activity of BALP,with activity of BALP>250 U/L in 43.1％of subjects and 200-250 U/L in 54.8％of the subjects.The intake of calcium Was unsatisfied in 48.4％of the boys and 39.0％in girls.Less than 10.0％ of the Sllbiects were satisfied with the intake of calcium in each age group while over 45.0％of the snbjects in 10-13 age group were deficient in calcium.Differences between the means of BALP in different sex groups(t=1.633,P=0.105)and different age groups(F=0.323,P=0.924)were not statistically significant.Heritability analysis displayed that intra-class variation.Inter-class variation.Intra-class correlation coefficient were 191.54,1462.22,0.77 in MZ twins,and those were 491.03,1475.57,0.50 in DZ twins respectively with the heritability of BALP activity as 0.54.Conclusion Calcium deficiency Is commonplace in pre-puberty twins.Our data showed that the BALP activity was influenced both by genetic(54％)and environmental(46％)factors.

OBJECTIVETo study the clinicopathological features of the Chinese hereditary non-polyposis colorectal cancer and its germline mutation of hMLH(1) and hMSH(2).

METHODSThirteen typical Chinese hereditary non-polyposis colorectal carcinoma (HNPC)C kindreds and 19 non-typical HNPCC families were registered and followed up. The germline mutation of the hMLH(1) and hMSH(2) of 12 index cases of 6 typical and 6 non-typical HNPCC were screened by PCR-SSCP. Samples with abnormal mobility were sequenced directly.

RESULTSThe average age of typical HNPCC was 47, no difference existed between sexes. Location of the tumors of typical HNPCC represented 44.7% on the right half colon and non-typical HNPCC 65.8% on the rectum. The rate of the metachronos cancer was 11.5%. The 3-, 5-and 10-year survival rate was 64.0%, 45.3% and 31.2% respectively. Among 12 cases, 8 showed abnormal mobility. Except for an intron polymorphism, six exons abnormalities were found in 5 of 12 proband. Sequencing showed 4 missense, 7 insertion and a nonsense mutations.

CONCLUSIONSChinese HNPCC is early onset, more common on proximal colon and better prognosis. Mutation of hMSH(2) is dominant in the Chinese typical HNPCC, but mutation of hMLH(1) is more common in the non-typical group.

Adaptor Proteins, Signal Transducing ; Adult ; Asian Continental Ancestry Group ; genetics ; Carrier Proteins ; genetics ; Colorectal Neoplasms, Hereditary Nonpolyposis ; genetics ; pathology ; DNA Mutational Analysis ; Female ; Follow-Up Studies ; Germ-Line Mutation ; Humans ; Male ; Middle Aged ; MutL Protein Homolog 1 ; MutS Homolog 2 Protein ; genetics ; Mutation, Missense ; Nuclear Proteins ; genetics ; Pedigree ; Polymerase Chain Reaction

OBJECTIVETo explore the treatment options for younger than 60 years old adults with Ph /BCR-ABL positive acute lymphoblastic leukemia (Ph⁺ ALL).

METHODSFrom January 2001 to June 2012, 42 adult patients were enrolled in the study. All patients received standard VDCP±L ±imatinb (IM) as induction therapy followed by intensive consolidation of modified Hyper-CVAD/MA±IM. At complete remission 1 (CR1), patients with appropriate donor received allogeneic hematopoietic stem cell transplantation (allo-HSCT), the others sequentially received intensive consolidation ±IM and autologous HSCT (ASCT) at molecular CR (MCR), then MM±VP±IM as maintenance therapy. Overall survival (OS), disease free survival (DFS) and relapse rate (RR) were analyzed.

RESULTSCR rate after 1 cycle of induction chemotherapy was 83.3%. 39(92.9%) patients achieved CR. The median DFS and OS were (22.0±3.5) and (37.0±5.3) months respectively, with cumulative RR of (43.7±9.7)% during a median follow-up of 26.5(8-75) months. All 7 patients in CT group relapsed. Two patients received IM pre- and post-ASCT maintained MCR for 35 and 12 months after ASCT. But the other 3 ASCT recipients without IM died of relapse within 1 year. The transplant-related mortality rate in allo-HSCT group was 12.5%. The estimated 3-year OS in allo-HSCT (n=16), ASCT (n=5) and CT (n=7) groups were (66.7±12.2)%, (25.0±21.7)% and (16.7±15.2)%, respectively (P=0.014); meanwhile, the estimated 3-year DFS in those groups were of (56.3±12.4)%, (26.7±22.6)% and 0, respectively (P=0.002).

CONCLUSIONIM combined with intensive chemotherapy significantly increased the CR rate with the improved quality of CR, which highlighted the feasibility of SCT. Allo-HSCT could decrease relapse to produce favorable OS and DFS in CR1 of young adults with Ph⁺ ALL. ASCT combined IM might be the treatment of choice for those achieved MCR but without donors.

Adolescent ; Adult ; Disease-Free Survival ; Female ; Humans ; Male ; Middle Aged ; Precursor Cell Lymphoblastic Leukemia-Lymphoma ; therapy ; Prospective Studies ; Recurrence ; Remission Induction ; Survival Rate ; Treatment Outcome ; Young Adult

Objective:To summarize the patient profiles and therapeutic efficacies of ABO-incompatible living-related kidney transplantations at 19 domestic transplant centers and provide rationales for clinical application of ABOi-KT.Methods:Clinical cases of ABO-incompatible/compatible kidney transplantation (ABOi-KT/ABOc-KT) from December 2006 to December 2009 were collected. Then, statistical analyses were conducted from the aspects of tissue matching, perioperative managements, complications and survival rates of renal allograft or recipients.Results:Clinical data of 342 ABOi-KT and 779 ABOc-KT indicated that (1) no inter-group differences existed in age, body mass index (BMI), donor-recipient relationship or waiting time of pre-operative dialysis; (2) ABO blood type: blood type O recipients had the longest waiting list and transplantations from blood type A to blood type O accounted for the largest proportion; (3) HLA matching: no statistical significance existed in mismatch rate or positive rate of PRA I/II between two types of surgery; (4) CD20 should be properly used on the basis of different phrases; (5) hemorrhage was a common complication during an early postoperative period and microthrombosis appeared later; (6) no difference existed in postoperative incidence of complications or survival rate of renal allograft and recipients at 1/3/5/10 years between ABOi-KT and ABOc-KT. The acute rejection rate and serum creatinine levels of ABOi-KT recipients were comparable to those of ABOc-KT recipients within 1 year.Conclusions:ABOi-KT is both safe and effective so that it may be applied at all transplant centers as needed.