Acute Disease ; Adult ; Emergency Nursing ; Emergency Treatment ; Humans ; Male ; Middle Aged ; Phosgene ; analogs & derivatives ; poisoning

In order to explore the effects of Panax notoginoside (PNS) on the expression of transforming growth factor β1 (TGF-β1) and Smad-7 in renal tissues of diabetes, a rat model of diabetic nephropathy was set up by intravenous injection of streptozotocin (STZ). Wistar rats were randomly divided into normal group, diabetic control group, group treated by PNS at low-dosage (PL), group treated by PNS at high-dosage (PH) and group treated by catopril (C), respectively. Fasting blood glucose (FBG), renal index, endogenous creatinine clearance rate (C(Cr)) and urinary albumin (UAlb) in 24 h were examined after 6 weeks. Meanwhile, the expressions of TGF-β1 and Smad7 in renal tissues were immunohistochemically dectected. At the end of the sixth week, FBG, renal index, C(cr), UAlb were all elevated significantly in control group (P<0.01). The expression of TGF-β1 protein was increased while Smad7 protein decreased in renal tissue (P<0.01). However, the treatment with PNS reversed the aforementioned changes in renal tissues of diabetic rats. These results indicate that PNS possess a protective effect on the kidney of diabetic rats and it might protect kidney by inhibiting the expression of TGF-β1 protein and enhancing the expression of Smad7 protein.

Objective To study the clinical application of quantitative ultrasound(QUS) which evaluate skeletal status of children and adolescents.Methods Subjects were children and adolescents aged 0-18 years old.Tibia/radial bone strength was obtained using QUS.Children who were younger than 2 years old only were measured at midpiece of tibia,and children who were older than 2 years old were measu-red at midpiece of tibia and radius.At the same time,calcium in peripheral blood was measured by the method of atomic absorption.Results 1.Radial and tibial bone strength presented nonlinear growth with age in healthy children and adolescents.2.Bone strengths of different anatomic-sites were different and the disparity rate of evaluation at different anatomic sites was 30.1%.3.The bone strength of the children who had some risk factors that could induce decrease of bone strength or had some diseases of bone metabolism was lower than healthy children.Composition of low bone strength children was 71.1% in high risk children,and was 47.9% in those who had some symptom or physical sign of calcium deficiency.4.Composition of low bone strength children was 44.2% in those who had normal peripheral blood calcium,and composition of normal bone strength children in those who had low peripheral blood calcium was 59.7%.The 2 methods had no correlation.Conclusions QUS is a quite useful technique in evaluation skeletal status of children and adolescents,and is sensitive for high risk children.It is necessary to measure radius and tibia,and consider blood calcium and bone strength to evaluate practical level of calcium and nutritional state of children.

Objective To evaluate the method of detecting antibodies to Bacillus anthracis by enzymelinked immunosorbent assay(ELISA)using crude antigen.Methods The anti-Bacillus anthracis antibody levels in sera of 42 healthy people and 42 patients were detected by indirect ELISA.Standard curve was plotted using the data from positive controls,based on which the relative content of each serum was calculated and compared with the result of rLF.Results The median of antibody's relative content in patient group and healthy people group are 1.19 and 0.24,the differences being statistically significant(uc=7.643,P＜0.05).The result of crude antigen is in concordance with rLF(but not parallel absolutely).Conclusions Crude antigen can distinguish most of patients with healthy population effectively.The results suggested that crude antigen is applicable in anti-Bacillus anthracis antibody surveillance.

Objective To explore the influence of fluorine on mRNA and protein expression of the insulin-like growth factor-1 (IGF-1) and its receptor of rat osteoblasts.Methods Osteoblasts were isolated from rat bone by enzyme digestion.Different fluorine concentration [0 (control),10-7,10-6,10-5,10-4,10-3 mol/L] was add to the second generation osteoblasts.The IGF-1 in the culture medium was determined by radioimmunoassay (RIA) at different fluorine concentration and different time (24,48 h).The expression of IGF-1 receptor was measured by the method of fluorescent quantitation PCR and the expression of protein IGF-1 receptor was measured by Western blotting.Results ①With increased dose of fluoride exposure,IGF-1 concentration in the osteoblastic culture medium increased first and then decreased at 24,48 h,respectively.Compared to the control group [(38.83 ± 3.48)ng/L],IGF-1 concentration of the 24 h 10-6 mol/L group[(65.45 ± 4.84)ng/L] was higher,and the difference was statistically significant(P ＜ 0.05).The same result was also shown in the 48 h 10-5 mol/L group [(59.14 ± 1.53)ng/L] to its corresponding control group [(33.79 ± 1.84)ng/L,P ＜ 0.05].②The mRNA expression of IGF-1 receptor of the 24,48 h 10-5 mol/L groups (0.0055 ± 0.0004,0.0262 ± 0.0040) was significantly higher than their corresponding control groups (0.0022 ± 0.0001,0.0073 ± 0.0008,all P ＜ 0.05).③With increased dose of fluoride exposure,the protein expression of IGF-1 receptor increased first and then decreased ;the expression of 24 h 10-5 mol/L group (1.39 ± 0.16) was compared with the corresponding control group (0.86 ±0.12),and the difference was statistically significant (P ＜ 0.05) ; the expression of 48 h every fluorine group was also compared with the corresponding control group,and the difference was not statistically significant(all P＞ 0.05).Conclusions Fluorine can affect the mRNA and protein expression of osteoblastic IGF-1 and its receptor.It indicates that IGFS signal transduction pathways play an important role in fluorine regulation of bone metabolism.

Objective To observe the value of ultrasonography, MR and MSCT in diagnosing intravitreous autologous eyelashes. Methods Thirty-two New Zealand rabbits were averagely divided into 4 groups (A, B, C and D) randomly, and 1, 5, 10 eyelashes were implanted into vitreous body of rabbits respectively in group A, B, and C, whereas rabbits in group D (the control group) were only exposed to sham operation without implanting any eyelashes. After one week, all rabbits underwent ultrasound, MR and MSCT examination, then the specimens of vitreous bodies were obtained and observed pathologically. Results All the implanted intravitreous eyelashes were displayed with ultrasound. Intravitreous eyelashes in group A were not detected with MRI, whereas in 3 rabbits of group B and all of group C were displayed on T2WI, T2*WI and SWI sequences. MSCT detected intravitreous eyelashes in only 6 experimental animals. Conclusion Ultrasonography should be considered as the first choice for diagnosis of intravitreous autologous eyelashes. Different sequences of MRI have various advantages in diagnosing intravitreous autologous eyelashes, whereas the diagnostic value of MSCT is limited.

In order to explore the effects of Panax notoginoside (PNS) on the expression of transforming growth factor β1 (TGF-β1) and Smad-7 in renal tissues of diabetes,a rat model of diabetic nephropathy was set up by intravenous injection of streptozotocin (STZ).Wistar rats were randomly divided into normal group,diabetic control group,group treated by PNS at low-dosage (PL),group treated by PNS at high-dosage (PH) and group treated by catopril (C),respectively.Fasting blood glucose (FBG),renal index,endogenous creatinine clearance rate (Ccr) and urinary albumin (UAlb) in 24 h were examined after 6 weeks.Meanwhile,the expressions of TGF-β1 and Smad7 in renal tissues were immunohistochemically dectected.At the end of the sixth week,FBG,renal index,Ccr,UAlb were all elevated significantly in control group (P＜0.01).The expression of TGF-β1 protein was increased while Smad7 protein decreased in renal tissue (P＜0.01).However,the treatment with PNS reversed the aforementioned changes in renal tissues of diabetic rats.These results indicate that PNS possess a protective effect on the kidney of diabetic rats and it might protect kidney by inhibiting the expression of TGF-β1 protein and enhancing the expression of Smad7 protein.

OBJECTIVE: To observe and analyze the mutation phenomenon of 17 STR loci of PowerPlex 18D Kit in paternity test of Yunnan population. METHODS: The DNA was extracted by Chelex-100 method. The PowerPlex 18D Kit was used to test 1,483 cases and their conclusions of paternity tests were verified. RESULTS: In the 1,483 cases, 1,047 were parental triplet and 436 were uniparental diad. A total of 2,530 times of meiosis was observed. One STR locus mutation was observed in 24 cases. And 11 mutation loci were found in the 17 STR loci. CONCLUSION STR loci mutation is a common phenomenon. We should collect the data of STR loci mutation, choose other good polymorphism, low mutation rate of genetic markers, to ensure that the results are accurate and reliable.
China ; DNA ; DNA Fingerprinting ; Female ; Gene Frequency ; Genetic Markers ; Humans ; Microsatellite Repeats ; Mutation ; Paternity ; Polymorphism, Genetic

The existence of RNA has been confirmed in human mature sperm, including mRNA and some members of the microRNA family. Different expressions of sperm mRNA have been found to be correlated with sperm motility and male reproduction. Some sperm specific mRNA and microNA play important roles in the regulation of sperm-oocyte fusion and early embryogenesis. Many published results indicate the variety of sperm RNA in composition and quantity as well as its indispensability for embryogenesis. Further researches on the function of sperm RNA will promote the progress in such fields as male infertility, human assisted reproduction technology and nuclear transfer.
Humans ; Male ; MicroRNAs ; physiology ; RNA, Messenger ; physiology ; Sperm Motility ; Spermatozoa ; physiology

Objective To understand the current situation of iodine deficiency diserders(IDD) in Longyan City and to evaluate the effect of prevention and control measures of IDD in order to provide evidence for formulating prevention and control tactics. Methods During the year of 2006 and 2007, the 30 primary schools were screened by population proportion survey(PPS) from the 7 counties of Longyan City. Forty children aged 8-10 years in each school were randomly selected as a group to examine thyroid, and 7 children in each group were selected to measure the urine iodine and the salt iodine at the same time. The goiter rote, the median urinary iodine, the consumption rate of qualified iodized salt, the iodine salt coverage rate, the rate of qualified iodized salt and the non-iodized rate were detected. Results The goiter rate of children aged 8-10 years old in Longyan City was 0.94%(79/8438). The median urinary iodine was 259.12 μg/L. The consumption rate of qualified iodized salt was 97.86% (1462/1494). The iodine salt coverage rate was 99.46%(1486/1494). The rate of qualified iodized salt was 98.38 (1462/1486), and the non-iodized rate was 0.54% (8/1494). Conclusions All indicators have reached the national standard of eliminating IDD in Longyan City.