To investigate haplotype distribution of the Y-chromosome STRs (DYS19, DYS390 and DYS389 locus) in Han population in Guangdong area. The STRs were typed by poplymerase chain reaction followed by discontinuous PAGE system. Among 130 unrelated males, 81 different haplotypes were observed, 52 out of them were found only one time. The haplotype genetic diversity, discrimination power and non-father exclusion chance are 0. 9989, 0. 9824, 0. 9824, respectively. The high informative haplotypes make these STRs useful for the forensic individual identification and paternity testing.

Objective To study the genetic polymorphisms of 11 Y chromosome specific STR loci in Guangzhou Han population. Method The DNA extracted from blood samples of unrelated individuals in Han population living in Guangzhou were amplified by PCR. The PCR products were analyzed by using PAGE. Results 3-5 alleles were detected in 11 Y - STR loci respectively in Han population in Guangzhou. The minimum GD value was 0.3037 (DYS434), while the maximum GD value was 0.8455 (DYS390) . Conclusion The 11 Y - specific STR loci are highly polymorphic and are suitable for personal identification and paternity testing.

Objective To investigate the polymorphism of DXS6854 locus in Guangdong Han population. Methods The DXS6854 locus was analyzed by PCR following polyacrylamide gel electrophoresis and silver staining. Results Among 189 females and 230 males from Guangdong Han population, 8 alleles were observed with frequencies ranging from 0.0026 to 0.4522. Exact tests demonstrated genotype frequencies in females had no departure from Hardy- Weinberg equilibrium. The discrimination powers for female and male original samples were 0.8633 and 0.7012, respectively. When both mother and her daughter were tested, the probability of excluding a random man as a father was 0.6712. Conclusion The DXS6854 locus is appropriate for individual identification and paternity testing involving a female child.

【Objective】 To understand the polymorphism of D13S63 1 in Guangdong Han population. 【Method】 Short tandem repeat (STR) locus D13S63 1 was analyzed by means of polymerase chain reaction, following discontinuous el ectrophoresis system. 【Result】 Among 227 unrelated individuals from Guangdong Han population, 6 alleles rang from 197～217 bp could be observed. The most com mon allele with a frequency 0.2907 is allele 201 bp, the rare allele is allele 197 bp with a frequency 0.0903. The heterozygosity, the power of discrimination and the exclusion chance in paternity case were 0.7885，0.9231, 0.5543, respect ively. Segregation studies reveal that D13S631 inherit in Medel's Law. 【Conclus ion】 The result shows that locus D13S631 is highly informative and suitable fo r forensic application.

Objective Disorder of intestinal barrier function is associated with the non-alcohol fatty liver disease ( NAFLD) . The present paper aimed to explore the intestinal barrier function in the rat model of NAFLD . Methods Sixteen SD rats were ran-domly divided into an NAFLD and a normal control group of equal number .The NAFLD models were constructed by high-fat feeding . HE staining was used for pathologic examination of the liver , the levels of TNF-α, IL-1, and endotoxin (ET ) were measured by ELISA and the limulus reagent method , and the expressions of intestinal ZO-1 and Occluding were determined by real time PCR . Resu lts Compared with the normal controls , the NAFLD rats showed typical hepatic lipid deposition , with significantly increased levels of serum TNF-αand IL-1 and plasma ET and decreased expressions of intestinal ZO-1 and Occluding (P<0.05). Conclusion Intestinal barrier function is decreased in NAFLD rats .

Objective To observe the effect of Sijunzi Decoction(SD) and Huangqi Sijunzi Decoction(HSD) on mitochondrial succinate dehydrogenase,cytochrome oxidase activity of liver in rats with spleen asthenia,thus to reveal the pathogenesis mechanism of spleen asthenia from energy metabolism,and to clarify the therapeutic mechanism of spleen-invigorating and Qi-tonifying herbs.Methods Forty SD rats were randomly divided into 4 groups:normal control group,spleen-asthenia model group,SD(10.5 g/kg) group and HSD(18 g/kg) group,10 rats in each group.Except that the normal control group,the rats in the other groups were fed with half-full diet once every other day and with gastic gavage of Xiaochengqi Decoction 60 g/kg every day to establish animal model of spleen asthenia.After 15 days,the model rats were administered the corresponding drugs according to the experimental design for 4 continuous weeks.The changes of mitochondrial succinate dehydrogenase,cytochrome oxidase activity of liver were measured,and the general status of the rats were observed.Results Compared with the normal control group,the level of mitochondrial succinate dehydrogenase and cytochrome oxidase activity in liver of spleen asthenia group were decreased obviously(P

Objective:To explore the effect of astragalus polysaccharides on the cellular immune functions in rats with sciatic nerve Wallerian degeneration.Methods:10 female Wister rats were established as the sciatic nerve injury model,which were randomly divided into astragalus polysaccharides group and control group.Then 20 mg/kg of astragalus polysaccharides were peritoneal injected every postoperative day in experimental group for 7 days and the same volume of saline for the control group.The content of IL-1? in serum and in supernatants of spleenocytes and macrophages was measured by Sandwich ELISA.Results:The proliferation ability of splenic T cells and macrophages in astragalus polysaccharides group was higher than that of control group(P0.05).Conclusion:Astragalus polysaccharides induces the cellular immuno-regulation in sciatic nerve Wallerian degeneration rats and by this way to promote nerve regeneration.

AIM:To investigate the inhibitory effects of triptolide on cell proliferation and metastasis in Burkitt's lymphoma cell line Raji cells.METHODS: The effects of triptolide on the growth of Raji cells were studied by 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium(MTT) assay.The effects of triptolide on the cell apoptosis of Raji cells were detected by using Annexin Ⅴ/PI double-labled cytometry.The effects of triptolide on CXCR4 expression on Raji cells were studied by flow cytometric analysis.Chemotaxis assays were performed to observe the effects of triptolide on migration of Raji cells towards recombinant human SDF-1?(rhSDF-1?)in vitro.RESULTS: Triptolide inhibited the proliferation of Raji cells in a dose-and time-dependent way with a 24 h IC50 value of 43.06 nmol/L and a 36 h IC50 value of 25.08 nmol/L.Following the treatment of triptolide,the cell apoptosis rate was increased as the treatment concentration increased and the culture time extended.The effects were dose-and time-dependent.Triptolide could downregulate the expression of CXCR4 on Raji cells in a dose-dependent manner.Moreover,chemotaxis assay suggested that triptolide could block the migration of Raji cells to rhSDF-1? in vitro,and the inhibition was dose-dependent.CONCLUSION: Triptolide could inhibit the cell proliferation and induce the cell apoptosis of Raji cells.Furthermore,it could block the cell metastasis of Raji cells in vitro and the underlying mechanism might be related to the inhibition of the SDF-1/CXCR4 axis.

Anything in the universe can be explained by Yin-yang theory of Chinese medicine. Synaptic connections in the central nervous system also embody a balance between Yin and Yang. To discover the synaptic processes of gathering,storing and retrieving information in the brain is a hotspot field of modem neuroscience. This paper attempts to analyze the synaptic connection in both structure and function from Yin-Yang theory. The connections of axons and dendrites between neurons arc malleable and constantly changing, showing a Yin-Yang balance anatomically. Remodeling, stabilization and plasticity changes of synaptic processes also embody the relationship of contradictions, conflicts and transformation of Yin-Yang functionally. Therefore, it is possible to achieve an unexpected result to solve some modem medical problems by using the thoughts and methods of Chinese medicine.

Objective To investigate the risk factors,clinical prediction and intrapartum management of shoulder dystocia in non-macrosomia.Methods Totally 7 811 cases of vaginal delivery were retrospectively reviewed from Juanary 2009 to December 2013 in Shengjing Hospital.Shoulder dystocia was found in 11 cases (0.14％,11/7 811),including 1 case of macrosomia and l0 cases of non-macrosomia (shoulder dystocia group).Each non-macrosomia shoulder dystocia case was matched with 10 cases of normal delivery in the same week,which were selected randomly as the control group.The tendency and risk factors of shoulder dystocia in macrosomia and non-macrosomia were analyzed,and the following data between the two groups were compared,including the height of uterus fundus,abdominal circumference of the pregnant woman,the increasing of body mass index(BMI),fetal biparietal diameter (BPD),fetal femur length (FL),duration of every stage of labor,birth weight of the newborn,head circumference and chest circumference of the newborn,Apgar score.Results (1) There were 213 macrosomias among the 7 811 vaginal deliveries,with the incidence of 2.73％ (213/7 811).Only 1 shoulder dystocia was macrosomia (0.46％,1/213); while the other 10 cases were non-macrosomia (0.13％,10/7 598).(2) From 2009 to 2013,the macrosomia happened by 24 cases (2.32％,24/1 034),42 cases (3.61％,42/1 164),46 cases (2.60％,46/1 772),62 cases (3.01％,62/2 060),39 cases (2.19％,39/1781),respectively.The incidence of macrosomia had no significant difference among these 5 years (P＞0.05).The shoulder dystosia occurrence without macrosia in these 5 years were 1 case (0.10％,1/1 034),3 cases (0.26％,3/1 164),2 eases (0.11％,2/1 172),2 cases (0.10％,2/2 060),2 cases (0.11％,1/1 781),respectively.The incidence of shoulder dystocia without macrosomia had no significant difference among these 5 years (P＞0.05).(3) In the should dystocia group,5 cases were complicated with premature rupture of membrane (5/10),4 cases were mother≥ 35 years old (4/10),3 cases were multipara(3/10),3 cases had gestational diabetes mellitus(3/10),3 cases were occiput posterior during the first stage of labor(3/10),3 cases had prolonged second stage of labor (3/10) and 6 cases had routine lateral incision (6/10).In the control group,3 cases were complicated with premature rupture of membrane(3/10); 1 case was mother≥35 years old (1/10); 2 cases were multipara(2/10),3 cases had gestational diabetes mellitus (3/10),1 case had prolonged second stage (1/10) and 7 cases had routine lateral incision (7/10).(4) There were no significant difference in the height of uterus fundus,BMI,BPD,FL,and duration of the first stage of labor between the shoulder dystocia group and the control group (P＞0.05).Compared with the control group,the increasing of BMI [(6.8±3.1) vs (4.8± 1.4) kg/m2],the time of the second stage of labor[(86±65) vs (38±28) minutes] and abdominal circumference[(108±8) vs (101±7) cm] were significantly higher in the shoulder dystosia group (P＜0.05).(5)There were significant difference in the chest circumference of the newborn [(34.0±1.6) vs (32.2±1.9) cm] and the ratio of chest circumference to head circumference of the newborn [(0.99±0.03) vs (0.97±0.03)] between the two groups(P＜0.05).The 1-minute Apgar score of the newborn (7.4±2.8) was significantly lower than the control group (10.0±0.0) (P＜0.01).Clavicular fracture occurred in 3 newborns and brachial plexus injury occurred in 4 newborns in the shoulder dystosia group.Conclusion It is difficult to predict shoulder dystocia in non-macrosomia.Shoulder dystocia of non-macrosomia could be predicted by measurement of the head circumference,chest circumference,the ratio of chest circunfference to head circumference by using prenatal ultrasound.The risk factors may complicated with premature rupture of membrane,abnormal occiput position during the first stage of labor and prolonged second stage of labor.