Background Coronary slow flow(CSF)phenomenon is characterized by delayed opacification of coronary vessels in normal coronary angiogram.Although clinical and pathological features have been previously described,its pathogenesis remains unclear.Objective To explore the risk factors related to coronary slow flow.Methods Thirty three patients with documented coronary slow flow which were defined according to TIMI frame count method(TFC)and 33 patients with normal coronary flow were enrolled.Clinical data and biochemical parameters were determined.Results Baseline data analysis showed that CSF group had higher baseline level of platelets count [(149.2?41.5)?109 vs(128.1?38.7)?109,P=0.037] and serum uric acid [(328.1?85.2)vs(282.8?82.4)?mol/L,P=0.032],while other variables were similar between the two groups.After adjustment for BMI,total cholesterol,urea,logistic regression showed that blood platelets count(?2=8.350,?=0.026,P=0.004),2-hour postprandial blood glucose(?2=4.920,?=0.289,P=0.026)and serum uric acid level(?2=5.305,?=0.009,P=0.021)were independent predictors for CSF.Conclusion These data suggest that elevated blood platelets count,2-hour postprandial blood glucose and serum uric acid level may predisposed to coronary slow flow.

Objective To explore the effect of xanthine oxidase inhibitor allopurinol on cardiomyocyte apoptosis in rats after myocardial infarction(MI).Methods MI model was established by the ligation of anterior descending coronary artery.The survivors were randomly divided into 3 groups: sham operation group(n=5),MI group(n=16) and allopurinol group(n=15,receiving allopurinol 50 mg?kg-1? d-1).After 28 days,the infarct size was measured.In non-infarcted zone(NIZ),cardiomyocyte apoptosis was detected by TUNEL;the expression of Fas was detected by immunohistochemistry;the expressions of xanthine oxidase(XO) and caspase 3 were detected by Western blot.In addition,the activities of XO and ?O-2,?OH-scavenging in NIZ were detected by colorimetry.Results Compared with sham operation group,the apoptosis index and expressions of Fas,XO,caspase 3 in NIZ were significantly increased in MI group.The activity of XO was increased but the activities of ?O-2 and ?OH-scavenging were decreased(P0.05).Conclusion Allopurinol could inhibit the cardiomyocyte apoptosis in NIZ in rats.The protective mechanism of allopurinol involves the reduction of reactive oxygen species and depression of the expressions of Fas and caspase 3.

OBJECTIVETo investigate the application of relay flaps pedicled by perforator from digital artery for reconstruction of soft tissue defects at finger tip.

METHODSFrom Mar. 2012 to Jun. 2014, 9 cases with soft tissue defects at finger tip were reconstructed with relay flaps at one side of finger pedicled by perforator from digital artery. The flap size ranged from 1.3 cm x 1.6 cm to 1.6 cm x 2.2 cm. The defects at donor sites were covered by adjacent web perforator V-Y advanced flaps.

RESULTSAll the 18 flaps in 9 cases survived completely with primary healing both in recipient and donor sites. The patients were followed up for 5 months to 2 years ( average, 12 months) with good elasticity and cosmetic results. No pain happened in the treated finger. The 2-point discrimination distance was 7-8 mm in fingertip flaps, and 10-12 mm in web perforator flaps. Hand function was graded as excellent in 7 cases, good in 2 cases, based on ATM assessment. The affected fingers had normal temperature and cold-resistance during winter. The width and depth of web in the donor site were not affected.

CONCLUSIONSThe relay flaps pedicled by perforator from digital artery can be applied for reconstruction of soft tissue defects at finger tip. The procedure is easy with satisfactory results and reservation of main artery. No skin graft is necessary for closure of defects on donor sites.

Arteries ; Elasticity ; Finger Injuries ; surgery ; Fingers ; blood supply ; Follow-Up Studies ; Humans ; Perforator Flap ; transplantation ; Time Factors ; Transplant Donor Site ; Wound Healing

Objective To explore the effect of xanthine oxidase inhibitors allopurinol on collagen remodeling of non-infarcted myocardium after myocardial infarction in rats.Methods Myocardial infarction models were produced by ligation of anterior descending coronary artery.The survivals were randomly divided into 3 groups:sham operation group, MI group and allopurinol group(50 mg/kg).On the 7th, 14th, 21st and 28th day respectively, the collagen content were examined. The type Ⅰ and type Ⅲ collagen volume fraction(CVF) and Ⅰ/Ⅲ ratio in non-infarcted zones(NIZ) were examined with PSR staining, mRNA expressions were detected with RT-PCR, the activities of xanthine oxidase(XO) and O—?2,?OH-scavenging in NIZ were examined by colorimetry.In addition, the expression of XO protein by Western blotting analysis and pathological change in LV were detected on the 28th day.ResultsCompared with sham group,the mRNA expressions, CVF of typeⅠand type Ⅲ collagen in NIZ were increased in MI group.The typeⅠ/Ⅲ ratio in NIZ was increased after decreased.The collagen content and activity of XO were boosted but the activities of O—?2,?OH-scavenging were decreased(P

AIM: To compare the clinical results of suture method and partial eyelash resection treating for pediatric eyelid trichiasis, and screen an effective method for the treatment of pediatric lower eyelid trichiasis.
METHODS: Fifty-six cases of pediatric patients with lower eyelid trichiasis were randomly divided into a control group and an observation group in accordance with the method of drawing lots, and each group was 28 cases. The control group was treated with suture method, and the observation group was treated with partial eyelash resection. The clinical efficacy, patient satisfaction before and after treatment, and the incidence of complications were compared.
RESULTS:(1) The clinically total effective rate was 74%of the control group, which was 89% of the observation group, and there were statistical differences of the clinical efficacy between the two groups ( P<0. 05 ); ( 2 ) the satisfaction scores were (3. 89±1. 22) points and (6. 27±1-86) points of the the control group before and after treatment, which were ( 4. 00±1. 34 ) points and ( 8-95±2-34) points of the observation group, and there were statistical differences of the two groups before and after treatment (P<0. 05), and the scores of the observation group were higher than that of the control group ( P<0-05);(3) complications such as swelling and stitches off appeared in both groups, and the rate was 21% in the control group, which was 11% in the observation group, and there were statistical differences between the two groups (P<0. 05).
CONCLUSION: The treatment of children with lower eyelid trichiasis, suture method is simple and can be performed under local anesthesia in collaboration with children, but with a higher relapse rate, some patients required reoperation;partial resection of eyelashes can be more thoroughly solve the problem of pediatric eyelid trichiasis with low recurrence rate, but children need to be under general anesthesia with some of big risk. So partial resection of eyelashes is unsuitable for using in clinical practice widely and can be used in special cases.

Animals ; Calcitriol ; pharmacology ; Diabetes Mellitus, Experimental ; complications ; Diabetes Mellitus, Type 2 ; complications ; Liver ; drug effects ; Liver Diseases ; complications ; drug therapy ; Male ; Rats ; Rats, Sprague-Dawley

Adolescent ; Biopsy, Fine-Needle ; Chromosomes, Human, Pair 18 ; Female ; Humans ; In Situ Hybridization, Fluorescence ; Oncogene Proteins, Fusion ; genetics ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Sarcoma, Synovial ; genetics ; metabolism ; pathology ; Soft Tissue Neoplasms ; genetics ; metabolism ; pathology ; Translocation, Genetic ; Vimentin ; metabolism

Forest musk deer (Moschus berezovskii), a rare wild medicinal animal, is listed under the category of the state key protected wildlife list of China. Musk, secreted by the musk glands, is with high economic and medicinal value and used as precious traditional medicine in China. In order to meet the needs of musk in Chinese traditional medicine, forest musk deer farming was conducted in 1950s, but the research progress on musk secretion mechanism was slow. Therefore, by reviewing the histological and anatomical structure of forest musk deer musk gland, the relationship between sex hormones and the musk secretion process, and the molecular mechanism of the musk secretion, the existing problems in investigating the musk secretion mechanism were analyzed and the development trends in this field were also discussed, in order to provide a reference for further studies on the musk secretion mechanism and improve musk production of forest musk deer.
Animals ; Deer ; metabolism ; Exocrine Glands ; anatomy & histology ; chemistry ; secretion ; Fatty Acids, Monounsaturated ; chemistry ; metabolism ; Male

The fermentation of Bacillus cereus DLSL-2 was investigated through single-factor test. The optimized fermentation conditions are: temperature 30℃,initial pH 7.0,250 r/min. Uniform design was used in shaking flask to optimize the fermentation medium of bacillus cereus . The most suitable medium was identified as follows:4.88% defated soybean power ,1.45% maize starch, 0.106% K 2HPO 4, 1.78% yeasts extract, 5.6% inoculum. the optimized medium allowed the B.cereus biomass concentration to be increased from 3.2?109 cfu/mL to 7.1?109 cfu/mL.

OBJECTIVETo study the consistency between DR and high-kV chest radiographs in diagnosis of pneumoconiosis and to explore the feasibility of DR chest radiograph in the diagnosis of pneumoconiosis.

METHODSTwenty five coal miners were examined with DR and high-kV chest radiographs at the same time. Image post-processing parameters (density, contrast, etc.) were set to ensure the quality of DR chest radiograph in Philips Essenta DR machine. In order to avoid the repetitive numbers, 50 chest radiographs were numbered at random. Pneumoconiosis diagnosis was conducted by six independent certified occupational physicians of pneumoconiosis by blind method. The consistency between 2 kinds of chest films was assessed.

RESULTSAll chest radiographs (25 cases, 50 chest films) were excellent. The diagnosis results of six readers on the 15 pairs of DR and high-kV chest radiographies were summarized. For high-kV chest radiographs, the consistency of pneumoconiosis classification for 12 pairs of readers was more than 68%, the consistency of total density for 11 pairs of readers was more than 68%. For DR chest radiographs, the consistency of pneumoconiosis classification for 13 pairs of readers was more than 60%, the consistency of total density for 14 pairs of readers was more than 60%. The consistency of pneumoconiosis classification between two chest radiographs was 72% (value: 0.69, 95% CI: 0.46-0.92), the consistency of total density between two chest radiographs was 80% (value: 0.78, 95% CI: 0.61-0.95).

CONCLUSIONWhen the chest radiograph quality was good and the difference of reading films was low, there was a good consistency of pneumoconiosis diagnosis between DR chest radiographs and high-kV chest radiographs.

Anthracosis ; diagnostic imaging ; Humans ; Radiographic Image Enhancement ; methods ; Radiography, Thoracic ; methods