OBJECTIVETo analyze the expression of human anti-apoptotic gene survivin (SVV) in normal human gastric tissues and gastric cancer.

METHODSSVV cDNA clone was obtained from human gastric cancer tissues by virtue of RT-PCR, using Dig-marked cRNA probe in situ hybridization to analyze its expression in normal human gastric tissues and gastric cancer.

RESULTSTwo SVV cDNA clones, SVV-S4A and SVV-S1B were obtained. The sequence of the former is identical to that of the well-known SVV cDNA; however, in the sequence of the latter, the third exon was missed, i.e., there are only two exons in SVV-S1B. In situ hybridization showed that SVV-S4A is mainly expressed in gastric cancer tissues whereas SVV-S1B is mostly expressed in normal gastric tissues.

CONCLUSIONThere is difference between SVV-S4A and SVV-S1B in respect to their characteristics of expression in gastric cancer and normal gastric tissues.

Alternative Splicing ; genetics ; Base Sequence ; Cloning, Molecular ; DNA, Complementary ; chemistry ; genetics ; Gene Expression Regulation, Neoplastic ; Humans ; Inhibitor of Apoptosis Proteins ; Microtubule-Associated Proteins ; genetics ; Molecular Sequence Data ; Neoplasm Proteins ; Sequence Analysis, DNA ; Stomach Neoplasms ; genetics

OBJECTIVETo identify novel human gastric cancer-associated susceptibility gene for early diagnosis and treatment of gastric cancer.

METHODSA primer was designed for 3'-rapid amplification of cDNA end(RACE) and amplified fragments were cloned, then they were analyzed by sequencing. Compared with ESTs in Genbank, the EST fragment represented a novel gene. Combination of Northern blot and virtual Northern and multiple tissues Northern blot, expression of the cDNA in multiple normal and carcinoma tissues were analyzed.

RESULTSOne of the important cDNA bands with poly(A) tail was cloned. This band was named W41. Sequence analysis showed that W41 consists of 533 bp. Basic local alignment search tool analysis revealed that W41 has low identity with any genes from GenBank. This sequence data was submitted to GenBank with accession No. AF 325202. Northern blot revealed that W41 presented higher expression in gastric cancer tissue than in normal tissue. Multiple tissue Northern blot revealed that W41 presented higher expression in multiple cancers than in normal tissues. Virtual Northern revealed that the cDNA presented higher expression in tumor series analysis of gene expression libraries than in normal.

CONCLUSIONA novel human gastric cancer-associated cDNA fragment was identified.

Blotting, Northern ; Cloning, Molecular ; DNA, Complementary ; chemistry ; genetics ; Female ; Gene Expression Regulation, Neoplastic ; Genetic Predisposition to Disease ; genetics ; HL-60 Cells ; HeLa Cells ; Humans ; K562 Cells ; Molecular Sequence Data ; Sequence Analysis, DNA ; Stomach Neoplasms ; genetics ; Tumor Cells, Cultured

Objective To evaluate the effects of high-fidelity simulation teaching on the clinical decision-making ability and critical thinking ability of new nurses. Methods A total of 39 newly recruited nurses in our hospital in 2014 were included in this study, and high-fidelity simulation teaching was used in pre-job training. They were investigated by the clinical decision-making ability measuring tool and critical thinking disposition inventory-Chinese version before and after the training. Results Before the high-fidelity simulation teaching, the scores of the new nurses′ clinical decision-making ability and critical thinking ability were (81. 50 ± 6. 87) and (309. 90 ± 28. 15). After the high-fidelity simulation teaching, the scores increased to (92. 91 ± 6. 35) and (318. 13 ± 26. 24). The differences before and after the training were statistically significant (t=10. 19, 2. 83;P<0. 01). Conclusions The high-fidelity simulation teaching in pre-job training can improve the clinical decision-making ability and critical thinking ability of new nurses.

Objective To investigate the effects of regular and irregular mandatory treadmill running (TR) on learning and memory abilities,stress response,survival and maturation of newborn neurons in dentate area of C57 mice. Methods Forty-eight male C57BL/6 mice were randomly divided into regular running group (n=16,definite time and quantity), irregular running group (n=16,definite time and different quantities) and sedentary group (n=16).Injection of bromodeoxyuridine (BrdU,50 mg/kg) was given intraperitoneally to mice from the 1st d to the 7th d of exercise,and then,these mice were subjected to a 4-wk TR training course or sedentary exercise.Double irnmunofluorescence labeling was employed to observe the effect of TR on survival and maturation of newborn neurons. Mice were trained on the Morris water maze to test the abilities of learning and memory. Corticosterone (CORT).level in the venous blood was measured with a radioimmunoassay kit. Results As compared with that in mice of the irregular running group and sedentary group,significant decrease of latency was noted in mice of the regular running group on the 1st, 3rd, 4th and 5th d of place navigation test (P＜0.05). As compared with that in mice of the sedentary group, significant decrease of latency was noted in mice of the irregular running group and regular running group on the 2nd d of place navigation test (P＜0.05),while no significant difference of that was noted between mice of the irregular running group and regular running group (P＞0.05).The platform was removed for a 60-s probe test 4 h after the last trial to test the recall ability, and the times of staying in the target zone in each group were regular running group＞irregular running group＞control group, and significant difference was noted between each 2 groups (P＜0.05). The numbers of double immunofluorescence labeled cells in the dentate gyrus were counted as regular running group＞irregular running group＞control group, and significant difference was noted between each 2 groups (P＜0.05). The serum CORT level was measured as regular running group＜irregular running group＜control group, and significant difference was noted between each 2 groups (P＜0.05). Conclusion Mandatory treadmill running could improve the learning and memory abilities,which may be related to the increment of survival and maturation of neural precursor cells,and decreased level of serum CORT; and the effect of regular mandatory treadmill running is better than that of irregular mandatory treadmill running.

The aim of this study was to investigate the apoptosis-inducing effect of cinnamic aldehyde (CA) on chronic myeloid leukemic (CML) cells and its mechanism. K562 cells and primary bone marrow mononuclear cells (MNC) from patients with CML were treated by various concentrations of CA. Flow cytometry was employed to measure the apoptosis of K562 cells and primary CML bone marrow MNC. Western blot was used to determine the expression of C-MYC and the phosphorylation of CrkL in K562 cells, and real-time polymerase chain reaction (real-time PCR) was used to quantify the expression of BCR-ABL mRNA in K562 cells. The results indicated that CA induced the apoptosis of K562 cells in a time- and dose-dependent manner. CA induced apoptosis of CML MNC dose-dependently. CA inhibited the expression of BCR-ABL mRNA and C-MYC, reduced CrkL phosphorylation levels in K562 cells. It is concluded that CA induces apoptosis of CML cells in vitro. Down-regulation of the expression and function of BCR-ABL may be one of its most important anti-leukemia mechanisms.
Acrolein ; analogs & derivatives ; pharmacology ; Apoptosis ; drug effects ; Fusion Proteins, bcr-abl ; metabolism ; Gene Expression Regulation, Leukemic ; Humans ; K562 Cells ; Leukemia, Myelogenous, Chronic, BCR-ABL Positive ; metabolism ; pathology

OBJECTIVETo study the segregation of two novel RHD alleles in Chinese pedigrees.

METHODSThe Rh antigens of the samples were identified by using monoclonal antibodies. The 10 exons of the RHD gene for the 2 probands and their family members were amplified separately and sequenced. The parents of proband 2 were analyzed by sequence specific primer-polymerase chain reaction (SSP-PCR).

RESULTSThe two probands were RhD negative and the RHD was D/d type. After alignment with the nucleotide sequence in GenBank, a deletion of nucleotide C at position 78 in exon 1 of proband 1 was detected, and her sister also had the deletion, which was confirmed by sequencing. The sequencing results of proband 2 showed a 10 nucleotide deletion in exon 8 as well as a RHD 520 G to A mutation in exon 4. The results of SSP-PCR and sequencing showed that the proband's mother also carried RHD 520 G to A and RHD 1080 del 10 mutation, which was transmitted to proband 2. The sequences of the novel alleles have been submitted to GenBank (accession No. GQ477180 and GU362076).

CONCLUSIONThe two novel RHD alleles, RHD 78delC and RHD 520 G to A+1080 del 10, were both pseudo genes and stably transmitted.

Adult ; Alleles ; Base Sequence ; Exons ; Female ; Genotype ; Humans ; Male ; Pedigree ; Rh-Hr Blood-Group System ; genetics ; Young Adult

Objective To investigate the perception and willingness of patients on individualized medication of voriconazole,to discuss the factors influencing patients' decision-making,and to support the development of the practice guideline for individualized medication of voriconazole.Methods A cross-sectional study involving various types of patients in 9 hospitals was conducted by questionnaire to evaluate the perception and willingness on therapeutic drug monitoring (TDM) of voriconazole and CYP2C19 genotype testing.Results A total of 119 patients were involved,including 24 (20.17％) children.Ninety five (79.83 ％) patients thought voriconazole TDM was necessary during the treatment of fungal infections.There was a significant difference on preference towards voriconazole TDM between patients who had received voriconazole TDM,before and patients who had never taken voriconazole TDM (100％ vs 75.76％,P ＜ 0.05).Fifty four patients (45.38％) agreed on CYP2C19 gene test.For this question,there was a significant difference among patients with different types of medicare (P ＜ 0.05).The ranking of factors that contributed to the 2 decision-making was consistent (P ＜0.05).The clinical efficacy was the most important factor (mean rank 3.46 and 3.87,respectively),while cost (mean rank 1.89) and potential benefit (mean rank 2) was the least important factor for the 2 decision-making,respectively.Conclusion There was a significant variance among different types of patients on preferences towards voriconazole TDM and CYP2C19 genotype testing,which should be considered for clinicians to make clinical decisions.The perception and willingness of patients should also be considered during the development of clinical practice guidelines and clinical practice.

Objective To explore the safety and efficacy of cochlear implantation among elderly patients with severe to profound hearing loss. Methods Eight pre-elderly and elderly patients with an medium age of 58 years who suffered from bilateral severe to profound sensorineural hearing loss received cochlear implantation between November 2008 and November 2009. The patients' tolerance to implant surgery and the occurrence of complications were observed. Three months after switch-on, aided threshold and speech performance were measured. Results The surgery was uneventful in all cases with normal intraoperative neural response telemetry elicited. Three months after switch-on, average aided threshold across speech frequencies was 35 -50 dB HL measured in sound field with warble tone. The results of speech audiometry showed large variation between individuals. Some patients achieved good performance in monosyllable recognition test, disyllables threshold test and sentences recognition test under both bubble noise and quiet conditons. Conclusions Pre-elderly and elderly patients can endure a state of general anesthesia for cochlear surgery without complications. Cochlear implant can provide reconstruction of speech recognition capabilities for elderly patients suffering from severe to profound hearing loss. Cochlear implantation can improve the quality of life of elderly patients with hearing loss.

Objective To investigate the effect of compound polyethylene glycol electrolyte powder (SF-PEG) and Magnesium Sulfate (MgSO4) on intestinal tract preparation in patients with constipation. Methods 135 cases of constipation patients who underwent colonoscopy were selected. They were divided into A, B and C groups, each with 45 cases.Group A and group B received oral SF-PEG and 219.2 g (2 000 ml) at 5:00 to 7:00. Group A take 50% MgSO450 ml at 9:00, and then took 250 ml warm water.Group B received the same dose of MgSO4 at 7:00. The two groups were examined by colonoscopy at 11:00. Group C received oral compound SF-PEG 219.2 g (2 000 ml) at 10:00 to 12:00, and then took 50% MgSO450 ml at 14:00, received colonoscopy at 16:00. According to the Boston bowel preparation scale (BBPS) score and parallel intraluminal bubble score. Determine the duration of bowel preparation process,and tolerance and adverse effects were recorded during bowel preparation. Results All patients completed bowel preparation and underwent a colonoscopy successfully. The scores of group A in BBPS were significantly higher than those in group B and group C (P < 0.05). In group A and group B, the score of parallel intraluminal bubble was lower than C, which was statistically significant (P < 0.05). The intestinal preparation time of A and B was less than that of group C, which was statistically significant (P < 0.05), and the tolerance of patients was higher in group A and group B than that in group C (P < 0.05). In adverse reactions, group A and group B were lower than those in group C (P < 0.05). Conclusions When taking the time (5:00 to 7:00), intermittent polyethylene glycol electrolyte powder and Magnesium Sulfate can shorten the bowel preparation time and improve the quality of bowel preparation in patients with constipation.

OBJECTIVETo study the potential risk factors of human infecting with Streptococcus suis.

METHODS1: M matched case-control study was conducted. 29 human cases of Streptococcus suis infection in the early phase were included in the case group, Patients' family members, neighbors and peoples who had worked together with patients to handle deceased or sick pigs in the last week were recruited as matched controls. There were 147 controls in total. Both cases and controls received questionnaire investigation including the ways to contact sick/dead pigs. Conditional logistic regression was employed to analyze matching data.

RESULTSAccording to the results of multivariate analysis, slaughtering (OR = 11.978, 95% CI: 3.355-42.756), carcasses cutting and processing (OR = 3.008, 95% CI: 1.022-8.849) sick/dead pigs were associated with cases related to human Streptococcus suis infection. The attributable risk proportion were 91.65% and 66.76% respectively. The other types of exposures to sick/ dead pigs, including feeding, selling, burying and eating, were not associated with the human Streptococcus suis infection in our study population.

CONCLUSIONSlaughtering, carcasses cutting and processing sick/dead pigs were important risky behavior for humans to be infected by Streptococcus suis.

Adult ; Aged ; Case-Control Studies ; China ; epidemiology ; Female ; Humans ; Male ; Middle Aged ; Multivariate Analysis ; Occupational Exposure ; adverse effects ; statistics & numerical data ; Risk Factors ; Streptococcal Infections ; epidemiology ; etiology ; microbiology ; Streptococcus suis ; physiology