OBJECTIVE To analyze and evaluate the comsumption of the antibacterial drugs during surgery operation in our hospital objectively.METHODS To carry out statistical analysis of antibacterial drugs from May to Dec in 2007.RESULTS The 93 percent of preventive usage of antibacterial drugs were in 2 hours after operation.The most was cephalosporins.CONCLUSIONS It is important to enhance the education of rational use and supervision.

Objective To provide updated recommendations for further adjustment of iodine deficiency disorders control strategy by evaluating awareness of the dangers of iodine deficiency disorders and their prevention and control measures among local residents and the willingness of choosing iodized or non-iodized salt in urban communities of Jiangsu province.Methods Trained health service workers did questionnaire investigation on iodine deficiency disorders prevention knowledge by calling computer-randomly selected family telephone numbers in every two blocks of provincial capital (Nanjing) and coastal city (Nantong) in Jiangsu province in 2010.The survey topics covered include:when supplied with both non-iodized and iodized salt,what kind of salt the local residents chose and the reasons; residents awareness of the dangers of iodine deficiency disorders and their prevention and control measures; resident's personal information(including only occupational category and age group).Key fields were rechecked from 10％ randomly selected valid questionnaires.Results Four hundred and fifty-five valid questionnaires were obtained by calling 2021 randomized telephone numbers in Nanjing and Nantong cities.After 10.1％(46/455) of the valid questionnaires were rechecked,the total coincidence rate was 87.0％(40/46).In the two cities,there were 73.2％ (333/455) of those 455 respondents saying they would choose iodized salt when iodized and non-iodized salt were supplied at the same time.There were 69.0％(314/455) of respondents had heard of iodine deficiency disorders,of which 79.6％(250/314) of them were aware of the dangers of iodine deficiency is endemic goiter,and 10.8％ (34/314) of them knew that iodine deficiency can cause varying degrees of mental damage.With respect to useful preventive methods of iodine deficiency disorders,there were 69.4％ (218/314) respondents know that eating iodized salt,and 41.1％ (129/314) respondents know that taking laver or kelp would prevent iodine deficiency disorders.Conclusions Remarkable achievements on iodine deficiency disorders health promotion and health education have been gained in urban communities of both the provincial capital and the coastal city Jiangsu province.However,some of the people are still not very clear why we should eat iodized salt.Salt industry in the current management system,is still premature to provide iodized salt and non-iodized salt simultaneously now.

OBJECTIVETo observe the effect of San-huang-sheng-fu oil on wounds of full-thickness scald in rabbits.

METHODSFull-thickness scald wounds with area of 6 cm(2) were reproduced on both sides of the back in 9 experimental rabbits by water vapor. These rabbits were divided into sesame oil (S1), San-huang-sheng-fu oil (S2), and mupirocin ointment (M) groups according to the random number table, with 3 rabbits (6 wounds) in each group. Two wounds of each rabbit in the three groups were respectively treated with sesame oil, San-huang-sheng-fu oil, and mupirocin ointment, in a dose of 0.15 mL/cm(2), 2-3 times per day. The general condition of wounds was observed on post scald day (PSD) 1, 11, 22, and 45. The wound healing time was recorded. The wound healing rate was calculated on PSD 5, 11, 15, and 22. All the rabbits were sacrificed on PSD 45, and wound tissues were subjected to histomorphological study with HE staining. The protein expressions of transforming growth factor β1 (TGF-β1), basic fibroblast growth factor (bFGF), and vascular endothelial growth factor (VEGF) were observed with immunofluorescence staining for the other part of wound tissues. Data were processed with one-way analysis of variance or LSD-t test.

RESULTS(1) The wound healing quality of rabbits in S2 group was better than that in the other two groups. (2) The wound healing time of rabbits in S2 group [(11.2 ± 2.3) d] was significantly shorter than that in S1 group [(21.2 ± 3.1) d, t = 2.591, P < 0.05]. (3) The wound healing rate of rabbit in each group was increased gradually on PSD 5-22. The wound healing rates of rabbits in S2 group on PSD 5-22 were significantly higher than those in S1 group (with t values from 3.920 to 8.605, P values all below 0.05). (4) Histomorphological observation showed that the structure of wound tissues in S2 group was in much better integrity than that in the other two groups, including regenerated hair follicles in the corium layer and regularly arranged collagen fibers. The protein expressions of TGF-β1, bFGF, and VEGF in S2 group were all higher than those in the other two groups.

CONCLUSIONSSan-huang-sheng-fu oil can up-regulate the protein expressions of TGF-β1, bFGF, and VEGF, induce vascular regeneration, promote wound healing, and shorten wound healing time.

Animals ; Burns ; drug therapy ; Disease Models, Animal ; Drugs, Chinese Herbal ; therapeutic use ; Fibroblast Growth Factor 2 ; metabolism ; Mupirocin ; therapeutic use ; Rabbits ; Transforming Growth Factor beta1 ; metabolism ; Vascular Endothelial Growth Factor A ; metabolism ; Wound Healing ; drug effects

Objective To observe the effect of iodine excess(HI),polyinosinic-polycytidylic acid[Poly(I:C),Poly]and thyroglobulin(TG)on the thyroid of mice by the expression of Toll-like receptor 3(TLR3)to reveal the functional role of TLR3 in autoimmune thyroiditis.Methods Forty-two non-obese diabetic mice,body weight (20±3)g,were divided into six groups:control group,HI group,Poly group,TG group,HI+TG group,HI+Poly group. Fed with deionized water and injected intraperitoneally with physiological saline 0.1 ml each day for a week, the mice in control group were injected with physiological saline every other day at the same dose for 1 week before they were sacrificed; HI group drank 0.05% NaI water and were injected intraperitoneally with physiological saline same as control group; Poly group drank deionized water and were injected intraperitoneally with poly 0.1 ml (1 g/L)each day of the week, then the mice were injected with Poly every other day at the same dose for 1 week before they were sacrificed; TG group drank deionized water and were injected intraperitoneally with physiological saline same as control group, immunized with 0.1 mg TG by subcutaneously injecting and the immunization was enhanced after they were fed half dose for 4 and 8 weeks separately. In HI + Poly group, the treatment was the same as HI group and Poly group; HI + TG group: the treatment was the same as HI group and TG group. Eight weeks later, mice were sacrificed and thyroids were taken to make frozen sections, Hematoxylin-Eosin (HE) staining was employed to observe the morphological change of the thyroids. The expression of TLR3 of thyroids was observed under fluorescence microscope after Immumofluorescence using TLR3 antibody and TR3-positive cells were analyzed in the thyroid density. Results HE staining showed thyroids of Poly group had no inflammation under microscope.There were different degrees of inflammatory cell infiltration in HI group and TG group. The inflammatory cell infiltration and the damage of follicular thyroid of HI + TG group and HI + Poly group were serious, and the degrees of inflammation were higher over "++". Thyroid follicular epithelial cell with TLR3 expression could be seen in Poly group and HI group, meanwhile, there were TLR3 strong positive inflammatory cells in HI group under fluorescent microscope. Using stereological analysis of TLR3-positive cell density in the thyroid, the difference between groups was statistically significant(F=7.870, P<0.01 ). TLR3-positive cell density in the thyroid of HI + Poly group was higher[ (9.287 ± 0.522)mm2] than control group[ (0.062 ± 0.025)mm2, P < 0.01] significantly, meanwhile, the density in HI + Poly group was higher than HI group [ (2.574 ± 0.257 )mm2] and Poly group[ (1.361 ± 0.148 )mm2, all P < 0.01]. The density in HI + TG group[ (4.843±0.405)mm2] was higher than HI group and TG group[(1.601 ±0.268)mm2, all P < 0.01 )]. Conclusions Excessive iodine and thyroglobulin can induce thyroiditis, and stimulate the expression of TLR3 in the thyroid follicular epithelial, Poly aggravated thyroiditis induced by iodine excess in NOD mice; TLR3 positive inflammatory cells also appeared in inflammatory region, suggesting that TLR3 is involved in the pathogenesis of autoimmune thyroiditis

Objective To investigate the influence of iodine excess on expression of TRAIl/TRAIL-sR1 in NOD and Balb/c mice and to study the effect of TRAIl/TRAIL-sR1 on the pathogenesis of experimental autoimmune thyroiditis(EAT). Methods Both Balb/c and NOD mice were divided randomly into control and iodine excess group by feeding with water containing no NaI or 0.05% Nal. The mice were sacrificed after 8 weeks. TRAIL and TRAIL-sR1 mRNA levels were detected by RT-PCR. The function, morphology and apoptosis of thyroids were also observed by ELISA and Tunnel stain. Results Treated by HI, enlarged follicles and flattened epithelium by accumulation of colloid were found in thyroids of both NOD and Balb/c mice. But significant lymphoid cell infiltration and local fibrosis were only found in thyroids of NOD HI group. The relative weight of thyroids of NOD mice in HI group[(104.8±14.5)mg/kg]was heavier than that of control group [(71.8±20.4)mg/kg]. The level of TT4 declined in HI group[(30.77±3.59)mmol/L]compared with control group[(36.43±2.66)mmol/L], meanwhile, the level of TSH was higher in HI group[(6.98±0.66)μg/L]than that in control group [(5.55±0.56)μg/L]. The difference being statistically significant(t=7.773,-9.526,-4.458, all P < 0.05). The relative weight of thyroids of Balb/c mice of HI group[(155.8±20.8)mg/kg]also heavier than that of control group [(105.1±22.0) mg/kg]. The level of TT4 droped in HI group [(19.75±3.32) mmoL/L]was higher than that in control group[(23.46±6.21)mmoL/L], the level of TSH in HI group[(4.14±1.71)μg/L]was higher than that in control group[(3.55±1.41)μg/L], the difference being statistically significant(t=7.554,-7.239,3.140, all P< 0.05). A great deal of apoptotie ceils observed in NOD (3.97±0.91) and Balb/c mice (1.05±0.45) by Tunnel stain were greater than control groups (0.21±0.15, 0.10±0.03), the difference being statistically significant in beth of the two species(t=-7.167,-17.772, both P < 0.05). The apoptosis index of thyroid follicular epithelium in NOD was obviously higher than Balb/c(t=-7.625, P<0.05). The level of TRAIL mRNA did not remarkably change in Balb/c between control group(0.000 59±0.000 39) and HI group(0.001 24±0.000 46, t=-1.940, P>0.05), but it increased apparently in NOD mice HI group(0.018 88±0.005 77) than that of control group(0.009 61± 0.00591, t=-2.71, P<0.05). The level of the expression of TRAIL-sR1 mRNA increased in HI groups of NOD (0.000 53±0.000 15) and Balb/c mice(0.000 42±0.000 09) than that in control groups of NOD(0.000 28± 0.000 05) and Balb/c mice (0.000 17±0.000 06) and the differences were statistically significant between the two species(t=3.050,3.990, all P<0.05). The differences of the expression of TRAIL and TRAIL-sR1 mRNA between the two species were significant(t=-3.37,-4.76, all P<0.05). Conclusions Iodine excess induces colloid goiter in beth species of mice and thyroiditis in NOD mice. The increase of TRAIL and TRAIL-sR1 influenced by iodine excess is one of the molecular bases of follicular epithelium apoptosis and inflammation in thyroids. Genetic factor is a key factor in the pathogenesis of thyroiditis.

OBJECTIVETo detect the KChIP2 mRNA level in rheumatic heart disease patients with or without atrial fibrillation (AF) by real-time PCR.

METHODSRight atrial appendage samples from rheumatic heart disease patients with (n = 17) or without AF (n = 13) were obtained during cardiac surgery. Total RNA was extracted from the atrial tissues, and the KChIP2 and Kv4.3 mRNA were detected by SYBR Green I real-time PCR with the GAPDH as the house keeping gene.

RESULTThe ratio of KChIP2/GAPDH (0.1468 +/- 0.0452 vs. 0.2200 +/- 0.0388, P<0.01) and the ratio of Kv4.3/GAPDH (0.3946 +/- 0.1826 vs. 0.5257 +/- 0.1427, P<0.05) were significantly lower in AF patients compared to non-AF patients.

CONCLUSIONDown-regulated atrial KChIP2 and Kv4.3 mRNA expressions in rheumatic heart disease patients with chronic AF might be one of the molecular bases responsible for the down-regulation of the I(to) current density of AF.

Adult ; Atrial Fibrillation ; genetics ; Down-Regulation ; Female ; Humans ; Kv Channel-Interacting Proteins ; genetics ; Male ; Middle Aged ; Myocytes, Cardiac ; metabolism ; RNA, Messenger ; genetics ; Rheumatic Heart Disease ; genetics ; Shal Potassium Channels ; genetics

Spontaneous transient outward currents (STOCs) play an important role in the myogenic regulation of small artery tone, such as coronary artery. In the present study, we investigated the electrophysiological properties and the regulation of STOCs in vascular smooth muscle cells (VSMCs) of porcine coronary artery by perforated patch-clamp technique. Our data showed that STOCs were dependent on voltage and extracellular calcium and they were highly variable in amplitudes and frequencies. STOCs superimposed stochastically onto whole-cell K(+) currents induced by step and ramp protocols. STOCs were completely abolished by ChTX [inhibitor of large-conductance Ca(2+)-activated potassium (BK(Ca)) channels], removal of extracellular Ca(2+), or addition of ryanodine (50 mumol/L) respectively. In contrast, CdCl2 and verapamil, inhibitors of voltage-dependent L-type Ca(2+) channels, had little effect on STOCs. Caffeine (5 mmol/L) transiently increased STOCs (hump), followed by a temporary inhibition. Ca(2+) ionophore A23187 increased both amplitude and frequency of STOCs. Na(+) ionophore monensin increased the frequency of STOCs. STOCs were strongly inhibited by KB-R7943, a selective inhibitor of the reverse mode of the Na(+)/Ca(2+) exchanger. Based on these observations, we conclude that STOCs are mediated by BK(Ca) channels. The generation and activation of STOCs depend upon Ca(2+) influx through Na(+)/Ca(2+) exchange and release of Ca(2+) from sarcoplasmic reticulum (SR) via ryanodine receptors. This suggests that Na(+)/Ca(2+) exchange determines calcium store refilling. Recycling of entering Ca(2+) from superficial SR may locally elevate Ca(2+) concentration at the plasma membrane, thereby activating BK(Ca) channels and then initiating STOCs.
Animals ; Coronary Vessels ; cytology ; physiology ; Electrophysiological Phenomena ; physiology ; Muscle, Smooth, Vascular ; cytology ; physiology ; Myocytes, Smooth Muscle ; cytology ; physiology ; Patch-Clamp Techniques ; Potassium Channels, Calcium-Activated ; physiology ; Sodium-Calcium Exchanger ; physiology ; Swine

BACKGROUNDReal-time quantitative RT-PCR (RQ-PCR) assay has become a vital tool to monitor residual disease of leukemia. However, the complexity and standardization of RQ-PCR should never be overlooked and the results should be interpreted cautiously in clinical conditions. We aimed to assess the methodology of RQ-PCR and its clinical applications in monitoring molecular kinetics of 36 newly diagnosed cases of acute promyelocytic leukemia patients with t (15; 17) from October 2004 to December 2005.

METHODSAll the TaqMan probe-based RQ-PCR reactions and analysis were performed on an ABI-PRISM 7,500 platform. The quantitation of PML-RARalpha transcripts was represented by the normalized quotient, that is, PML-RARalpha transcript copies divided by ABL transcript copies. According to induction therapy, the patients were classed into two groups: group 1 (n = 23), three-drug combination including arsenics, all-trans retinoic acid and mitoxantrone; and group 2 (n = 13), two-drug combination from all-trans retinoic acid, arsenics and mitoxantrone.

RESULTSThe sensitivity of RQ-PCR was 1 per 10(5) cells and 5 copies of the PML-RARalpha transcript could be reproducibly detected. No false positive results occurred in 40 non-acute promyelocytic leukemia samples. Optimal amplification efficiency could be attained, which was determined by the slope of the standard curves (slope: -3.2 - -3.7). The inter-assay and intra-assay variation coefficients of the method were 1.01% and 0.56% respectively. Although the time to attain hematological complete remission was similar in both groups, the time to achieve molecular remission of group 1 was significantly shorter than that of group 2 (61 days vs 75 days, P = 0.034). The rate of molecular remission within 70 days was higher in group 1 than in group 2 (75.00% vs 38.46%, P = 0.036). Compared with pretreatment, median reduction of the PML-RARalpha transcript before first consolidation therapy differed significantly between group 1 and group 2 (log scale, 3.15 vs 2.31, P = 0.024). Interestingly, we found that PML-RARalpha transcript levels temporarily increased in bone marrow (7 patients) and peripheral blood (22 patients) samples of patients during induction therapy in both groups.

CONCLUSIONSThe RQ-PCR assay is reliable for the detection of PML-RARalpha transcripts. Arsenics, all-trans retinoic acid and mitoxantrone triad induction treatment of acute promyelocytic leukemia is superior to two-drug combination induction therapy in terms of the molecular response.

Adolescent ; Adult ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Child ; Female ; Humans ; Leukemia, Promyelocytic, Acute ; blood ; drug therapy ; genetics ; Male ; Middle Aged ; Oncogene Proteins, Fusion ; genetics ; RNA, Messenger ; analysis ; Reverse Transcriptase Polymerase Chain Reaction ; methods ; Sensitivity and Specificity

OBJECTIVETo study the feasibility of monoamine neurotransmitters, serum glucose, serum glycerinate and cholesterol as objective indices for evaluating occupational stress.

METHODSJob stressors, modifiers, job strains in 844 people with four kinds of occupation were investigated, and the concentration of monoamine neurotransmitters, glucose, glycerinate and cholesterol in blood were detected at the same time. The methods of multiple stepwise regression and covariance analysis were used to analyze the data.

RESULTSThere was close relationship between monoamine neurotransmitters and job stressors, the forecast of the equation of 5-hydroxytryptamine (5-HT), dopamine (DA) and norepinephrine (NE) was 0.7238, 0.5703, 0.4438 respectively, the critical values of them were 804.00, 226.00 and 275.00 ng/ml respectively. There was a little contribution of job stressors to the equation of glucose, glycerinate and cholesterol, the critical values were 6.40, 2.51 and 5.92 mmol/L respectively.

CONCLUSIONMonoamine neurotransmitters may be a direct objective evaluating indices. Sugar, glycerinate and cholesterol may be an indirect objective indices.

Adult ; Blood Glucose ; analysis ; Cholesterol ; blood ; Female ; Humans ; Male ; Middle Aged ; Neurotransmitter Agents ; blood ; Occupational Diseases ; metabolism ; Stress, Psychological ; metabolism

Adrenergic beta-Antagonists ; pharmacology ; Animals ; Cardiopulmonary Resuscitation ; Diastole ; drug effects ; Female ; Male ; Natriuretic Peptide, Brain ; blood ; Propanolamines ; pharmacology ; Rabbits ; Ventricular Function, Left ; drug effects