Objective To investigate the self‐management and cognitive situation of the patients with gestational diabetes melli‐tus (GDM) dietary and to discuss the influence of individualized diet intervention on patients .Methods Forty‐one pregnant women diagnosed with GDM were selected as the research objects .logistic regression analysis was used as well as questionnaire to evaluate the influence factors of comprehensive evaluation of the follow diet control ,detecting the 2 h plasma glucose(2 h PG) ,hemoglobin (HbAlc) ,total cholesterol (TC) ,three acyl glycerin (TG) change in value after individualized nutritional intervention ,which were compared with pre‐intervention index .Results (1)90 .2% of diet cognitive received diet educators ,26 .8% of the patients thought only diet and exercise therapy could effectively control blood sugar .Patients got 2 .4% correct overall about questions about food and 85 .4% patients followed diet .(2)Logistic regression analysis showed that the influencing factors of GDM patients following di‐et were age ,BMI ,cultural degree ,receiving diet education ,self monitoring of blood sugar ,regular review to the hospital regularly . (3) After the intervention(41 cases) ,the level of 2 h PG ,HbAlc ,TC ,TG of 38 cases were significantly lower than before ,and the difference was statistically significant (P<0 .01) .Conclusion Individualized diet intervention treatment in GDM patients shows obvious effect .

Objective To evaluate the preclinical safety of 2-methoxyestradiol nanosuspension. Methods The safety of 2-methoxyestradiol nanosuspension for injection was observed through vascular stimulation test of the ear vein on rabbits, hemolytic test using rabbit erythrocytes, active systemic anaphylaxis (ASA) test on guinea pigs and acute toxicity test on mice. Results 2-Methoxyestradiol nanosuspension injection had no irritating effects on vessels, and no haemocytolysis, agglutination and ASA occurred.ASA test showed no allergy symptoms such as piloerection, nose rubbing and dyspnea in guinea pigs 30 min after sensitization.Acute toxicity test revealed that no pathological changes, including black spots and hyperaemia, were visually observed on the heart, liver and lungs after 14 days of intravenous administration. Conclusion 2-Methoxyestradiol nanosuspension injection is relatively safe, with low toxicity, and no hemolytic, anaphylactic and irritating effects. It may be clinically used for injection.

Objective To evaluate the value of IL-17 and IL-23 expression in response prediction of infliximab treatment in Crohn's disease (CD).Methods A total of 23 CD patients were enrolled in this study including 19 males and 4 females.Another 17 patients with colonic polyps were recruited as control group.The tissue expression of IL-17 and IL-23 in intestinal mucosa was measured by immunohistochemistry (IHC).In each specimen, IL-17 or IL-23 positive cells were counted and recorded in 10 random high power fields (HPFs).Results Infliximab was effective in sixteen patients (69.6％), while 7 patients (30.4％) did not response.The numbers of IL-17 or IL-23 positive cells were much more in responders than those in nonresponders.The median numbers of IL-17 positive cells were 26.7 (18.0, 38.6)/HPF in responders, 11.8 (7.0, 14.0)/HPF in nonresponders, 3.0 (2.0,4.0)/HPF in controls (P =0.004).The median numbers of IL-23 positive cells were 74.5(44.8, 128.6)/HPF in responders, 22.4(19.0, 38.8)/HPF in nonresponders, 3.0(2.0, 4.0)/HPF in controls (P =0.018).IL-17 or IL-23 positive mucosal cells were significantly decreased after infliximab treatment.Conclusion High expression of IL-17 and IL-23 in mucosa may predict the response to infliximab in CD patients.

Administration, Topical ; Adult ; Aged ; Double-Blind Method ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Phytotherapy ; Pruritus ; drug therapy ; etiology ; Renal Dialysis ; adverse effects ; Renal Insufficiency ; therapy

Objective To investigate the dynamic changes of platelets (PLT) and white blood cells (WBC) after traumatic brain injury (TBI) and discuss its clinical significance. Methods The number of PLT and WBC were examined in 63 patients with TBI by using cytoanalyze and also analyzed together with Glasgow Outcome Scale and concurrent infection, in the meantime, enzyme-linked immu-nosorbent was used to investigate concentration changes of C reactive protein (CRP) and thrombospondin 1 (TSPI) and analyze the correlation between CRP and TSP1. Results The number of WBC in all pa-tients, whether concurred with infection or not, was significantly increased within 24 hours after TBI (P < 0.01), with no statistical difference between patients without infection at day 4 and normal patients (P >0.05). However, the number of WBC was decreased to below 10 × 109/L in patients without infec-tion, which was significantly higher than that in normal patients (P < 0.05). In patients with infection and unfavorable prognosis, the number of WBC was increased again ay days 7-14, whereas that of PLT rose significantly at days 14-21 (P <0. 01). The concentration of TSPI was positively correlated with that of CRP (r = 0.720, P < 0.01). Conclusions Monitoring the dynamic changes of PLT and WBC is promising. The change of WBC at day 4 post injury is a key indicator to provide evidences of prophylactic antibiotic usage. Much attention should be paid to the dynamic change of PLT at days 14-21 post injury so as to evaluate the condition of hypercoagulability that can be potentially caused by inflammation response. Secondary increase of WBC and later increase, of PLT may affect prognosis of the patients. TSP1 and CRP may participate in thrombosis formation induced by inflammation.

BACKGROUND: Root canal files fracture is a kind of common oral clinical complications. Therefore, it is of clinical importance to study the cyclic fatigue of different types of stainless steel root canal files.OBJECTIVE: To explore the effect of the bending angle and cross-sectional area of root canal instruments on cyclic fatigue of stainless steel files.METHODS: Thirty 25# stainless steel K files (25 mm in length) were selected, the same to 30# and 35#. And these three kinds of files were respectively randomized into three groups (n=10 per subgroup). In the nine subgroups, the files were placed into self-made root canals at the bending angle of 45°, 60°, 90°, and driven by a 16:1 reducer (350 r/min).Fracture time in each subgroup was recorded and converted into the number of rotations. The microstructure of the fracture end of the files was observed under scanning electron microscope. Fractured files were collected and the crack tip length was measured by an electronic caliper.RESULTS AND CONCLUSION: At the same bending angle, the number of rotations resulting in file fracture was significantly reduced with the increasing of the cross-sectional area of the files (P < 0.05). When the type and cross-sectional area were same, the number of rotations resulting in file fracture was significantly reduced with the increasing of the bending angle of the root canals (P < 0.05), indicating a reduction in the cyclic fatigue performance of the files. Toughness fracture occurred in all the files, and circular or oval roughness nests with different sizes and microcavities formed on the fracture surface. In addition, brittle surfaces could be detective between the roughness nests. The diameter of roughness nests was gradually increased with the increasing of the bending angle of the root canals. For 30# and 35# files, the number of brittle surfaces was gradually increased with the increasing of the bending angle of the root canals. For 25# files, the crack tip length was gradually decreased with the increasing of the bending angle of the root canals, but there was no significant difference (P > 0.05). For 30# and 35# files, the crack tip length was significantly shortened with the increasing of the bending angle of the root canals (P < 0.05). But there were no significant changes in the 35#-60° and 35#-90° groups (P=0.095). At the same bending angle, there were no regular changes in the crack tip length in the different types of files. In conclusion, with the increasing of the cross-sectional area, the cyclic fatigue performance of the files with the same length and taper is reduced and the files become easy to be fractured; with the increasing of the bending angle of the root canals, the files with the same types are apt to be fractured near the root tip, indicating the shorter length of the crack tip indicates the more difficulty in the removal of the broken files.

Objective To detect mitochondrial gene 3243 A to 1507 Chinese and analyze their clinical characteristics.Methods Classical PCR－ RFLP was used to detect the mutation and statistical analysis was performed on the data after stratification in accordance with presence or absence of diabetes.Results (1)In this study,prevalence of mitochondrial gene 3243 A to G mutation was 1.16～ 1.20％ .(2)Compared with MDM(mitochondrial diabetes),M－ NGT(normal glucose to lerance with mutation)showed no significant difference in body fat parameters,blood lipid and C－ peptide except for early onset and hearing loss(P=0.0028).(3)Compared with type 2 DM,MDM presented characteristics of early onset,weight loss,hearing loss,islet cell function decrease and maternal hereditary.Conclusion Follow－ up should be given to the carrying the mitochondrial gene 3243 A to G mutation but presenting generally normal clinical manifestation in order to give the patient in－ time diagnosis and treatment.

Objective To study the bone turnover and its related molecular mechanism in STZ-induced diabetic rats. Methods Of 30 male SD rats studied, 15 were induced diabetics by intravenous injection of streptozotocin (50 mg/kg)and fed for 8 weeks. After the sacrifice of both the diabetic and control groups, serum Ca, P, alkaline phosphatase (ALP), and osteocalcin were determined, and 24 h urinary Ca and urinary cross-linked N-telopeptide of type Ⅰ collagen (NTx)and creatinine (Cr)ratio were also determined. The left tibia was dissected for bone histomorphometry analysis. Right femur and lumbar vertebrae (L1-L4) were reserved for bone mineral density (BMD) determination. The right tibia was separated for the study of bone tissue RANKL/osteoprotegerin, Core binding factor 1 (Cbfa1) ,osterix and osteocalcin mRNA level which was performed by real-time quantitative reverse transcription polymerase chain reaction assay. Results No significant difference was found in serum Ca, P, and ALP levels between 2 groups of rats. ST-Z-induced diabetic rats were characterized by extreme hyperglycemia, marked weight loss, polyuria, and hypercalciuria. A low-turnover osteopenia was evidenced in diabetic rats by decreased BMD in both femur [(0. 099±0.013) vs (0. 139 ± 0.013 g/cm~3) , P < 0.01] and lumbar vertebrae [(0. 107±0.011)vs (0. 149±0.009) g/cm~3, P<0.01] , reduced serum osteoealcin level [a marker of formation, (3.03±0.52) vs (6. 18±0.71) ng/ml ,P<0. 01]) ,decreased urine NTx/Cr ratio [(5. 67±0.86) vs (5.23±0.98) nmol/g Cr, P<0. 05], decreased trabeeular volume and thickness, and reduced bone label surface and bone formation rate [(0. 44±0. 11) vs (0. 78±0. 14) μm/d,P<0. 01] by bone dynamic study. The RANKL/ osteoprotegerin [(0.57±0.11)vs (0.89±0.13) ,P<0.01] ,osterix [(1.93×10~(-4)±0.65×10(~-4))vs (4.19×10~(-4)± 0.71×10~(-4)) ,P<0.01] ,Cbfa1 [(26.68×10~(-4)±6.53×10~(-4))vs (37.21×10~(-4)±7.14×10~(-4)) ,P<0.01] ,and osteocalcin [(2.25×10~(-4)±1.19×10~(-4))vs (3.43×10~(-4)±1.63×10~(-4)) ,P<0.01] mRNA expressions were declined in the bone tissue of the tibia in the ST-Z-induced diabetic rats, as compared with the control. Conclusion A low-turnover osteopenia is evidenced in STZ-induced diabetic rats by significant decrease of both osteoclastic marker(RANKL/ osteoprotegerin)and osteoblastic marker (osterix ,Cbfa1 ,osteocalcin)mRNA levels in tibia.

Data is the basis and soul of clinical trials. To obtain accurate data, strict and standard data management is essential, which can be effectively supported by quality control in statistical analysis. In this paper, we briefly introduce the concept of the quality control in clinical trials, and describe its contents and methods. We hope that this work will be helpful to the application of statistical quality control in data management of clinical trials.
Clinical Trials as Topic ; standards ; Data Collection ; standards ; Quality Control ; Statistics as Topic

Objective To investigate long-term care needs and its influencing factors among old people with chronic diseases in nursing homes in rural area of Liaoning. Methods A total of 502 elderly with chronic diseases were recruited using convenience sampling method from eight nursing homes in rural area of Liaoning, and were investigated with the general information questionnaire, Short Form 36-item Health Survey (SF-36) and long-term care needs questionnaire from March 2015 to January 2016. Results Logistic regression analyses were used to identify that age (P=0.000), old patients′ disease condition (P=0.008), marriage (P=0.013) and quality of life (P=0.000) were major factors affecting long-term care needs. The top three highest percentage services were seeing the doctor 85.26% (428/502), assisting with taking the medicine 80.28% (403/502), assisting with bathing 70.32% (353/502). Conclusions This study suggests that we should improve the quality of services of long-term care needs based on the demands of old people with chronic diseases in nursing homes in rural area.