Objective To observe the therapeutic effects of ganciclovir(GCV)with differentInjection methods on experimental acute retinal necrosis(ARN).Methods The right eyes of 41pigmented rabbits were infected by herpes simplex virus(HSV-1)(COS strain)to establish ARN animalmodel.After 24 and 72 hours,GCV was given by intravitreal injection(10 eyes),intravenous injection(11 eyes)and the intravitreal+intravenous injection(10 eyes);intravitreal injection of GCV anddexamethasone(6 eyes)was also included.Four eyes were not treated as the control.The dosage of GCVin intravitreal and intravenous injection was 800 μg and 5 mg/kg weight,respectively.Retina necrosis wasobserved and the grade was recorded 1-21 days after injection according to the grade standard ofretinopathy.The maximum grades of retinal necrosis in different groups were compared.Results Thegrade of retinal necosis was 3.8 in the control group,and 0.2,0.4,0.8,and 2.2 in intravitreal iniection,intravitrcal+intravenous injection,intravitreal injection with GCV and dexamethasone,and intravenousrejection,respectively,24 hours after the model was set up.The effects of the first 3 groups wereobviously better than the Iast group(P=0.003,0.011,0.045);while the difference among the first 3groups were not significant(P=0.881,0.054,0.107).Seventy-two hours after the mode J was set up,thegrades of retinal necrosis were above 1.4 in 4 groups,and the differences among the 4 groups were notapparent(P=0.214).Conclusions In the animal model of ARN,intravitreal injection with GCV caneffectively decrease the grade of retinal necrosis.The difference among intravitrealinjection,intravitreal+intravenous injection,intravitreal injection with GCV and dexamethasone,and intravenous injection is notsignificant.

BACKGROUND:Studies have shown that dental pulp cells can differentiate into odontoblastic like cells under certain stimulations, which is regulated by several signal pathways network. OBJECTIVE:To summarize the research progress of stimulating molecules and underlying molecular mechanisms of dental pulp cells’ odontoblastic differentiation. METHODS:A computer-based online search of CNKI and Wanfang databases was undertaken for the related Chinese articles dated from January 1998 to July 2014 with the keywords of“dental pulp cells”and“odontoblastic differentiation”in Chinese. Meanwhile, PubMed database was searched for the related English articles dated from January 1998 to July 2014 with the same keywords in English. Those with unrelated research subjects, or repetitive studies were excluded. Final y, 63 articles were reviewed. RESULTS AND CONCLUSION:Various stimuli, including bone morphogenetic protein,β-glycerophosphate and ascorbic acid, can stimulate dental pulp cells differentiation into odontoblastic like cells under certain conditions regulated by several signal pathways network. But odontoblastic differentiation is a complex process, and further research into stimulating molecules and underlying molecular mechanisms of dental pulp cells’ odontoblastic differentiation is significantly important for clinical applications of dental regenerative therapy.

AIM: To study the pharmacokinetics of ligustilide in the volatile oil from Angelica Sinensis(Oliv.) Diels in the rabbit. METHODS: HPLC method for ligustilide determination in the blood was developed.The HPLC system consisted of C_(18) column using MeOH-H_2O(65∶35,v/v) as mobile phase at a flow rate of 1.0 mL/min and UV detection at 236 nm. RESULTS: Linear calibration curves were obtained over the concentration range of 0.40 ?g?mL~(-1)～10.00 ?g?mL~(-1) for ligustilide.The minimum limit detection was 0.40 ?g?mL~(-1).The recovery of ligusitilide in blood was 90.90% with RSD 2.74%. CONCLUSION: After oral administration of volatile oil,intracorporal process of ligustilide in rabbit accords with 2-compartment model with 1 st order absorption,(2.6638) h and 108.88 h are obtained as t_(1/2?) and t_(1/2?) respectively.

Objective: To summarize and critically assess the evidence from randomized controlled trials (RCTs) of acupuncture in treating dry eye syndrome (DES) according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and the Cochrane Collaboration recommendations. Methods: A search of PubMed, the Cochrane Central Register of Controlled Trials, ClinicalTrials.gov and Embase was made from their inception to August 2016, as well as Chinese, Japanese, and Korean databases. Two reviewers independently selected RCTs and assessed the methodological quality. Meta-analysis and the level of evidence were processed by RevMan 5.3 and the Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach. Results: After selection, 8 trials were subjected to our systematic review. The methodological quality was low generally. The 3-10 weeks follow-up showed that acupuncture improved the tear film break-up time (BUT) (MD=1.33, 95%CI=1.01-1.66, 619 participants). The mean difference of Schirmer's test was 1.73 mm (95%CI=1.28-2.18, 618 participants) between the acupuncture group and the control group. The subjective variables exhibited no significant differences. Conclusion: The low methodological quality of the trials does not suggest drawing firm conclusions on the value of acupuncture therapy for DES. Acupuncture treatment may have some effects on the tear film BUT and Schirmer's test, but not on the subjective symptoms. Well-planned large-scale high-quality RCTs are needed to make it clear whether acupuncture is effective in treating DES.

Objective:To optimize the formula composition of rutin self-microemulsifying drug delivery system by pseudo-ternary phase diagram.Methods:The oil, surfactant and co-surfactant were chosen by the solubility test , and the formula of rutin self-microe-mulsifying drug delivery system was optimized by pseudo-ternary phase diagram .Results: The formula of rutin self-microemulsifying drug delivery system was with the mass ratio of oleic acid , Cremopher RH40 and absolute ethyl alcohol of 23∶36∶12 .The microemul-sion was clear transparent liquid .Conclusion:The prepared rutin self-microemulsifying drug delivery system using the optimized for-mula screened by pseudo-ternary phase diagram can increase the solubility of rutin significantly .

Objective:To observe the clinical efficacy of warm needling moxibustion plus functional exercises in treating knee osteoarthritis (KOA).Methods:Totally 108 eligible KOA patients were intervened by warm needling moxibustionplus functional exercises. The warm needling moxibustion was given 3 times a week, successively for 4 weeks. The visual analogue scale (VAS) was adopted to evaluate the pain intensity of the knee joint. After 4-week treatment, the change of VAS score, range of motion (ROM) of knee, and Lysholm score were observed, and the clinical efficacy was also estimated. Results:After treatment, the VAS score dropped obviously, and the ROM and Lysholm score increased markedly; the total effective rate was 83.3%. Conclusion:Warm needling moxibustionplus functional exercises is effective in treating KOA, as it can relieve the knee joint pain and improve the joint motion.

Objective:To observe the therapeutic effect of warm needling moxibustion for erectile dysfunction (ED).
Methods:A total of 46 eligible ED patients were randomized into a treatment group (n=24) and a control group (n=22). The treatment group was intervened by warm needling moxibustion while the control group by conventional acupuncture treatment, for a total of 4 courses. The therapeutic effect was evaluated by the international index of erectile function 5 (IIEF-5).
Results:After 4 courses of treatment, the overall effective rate was 91.3% in the treatment group (23 completed), versus 75.0% in the control group (20 completed), with a significant difference (P<0.05). After the treatment, the change of IIEF-5 score in the treatment group was significantly different from that in the control group (P<0.05).
Conclusion:Warm needling moxibustion can produce a more significant efficacy than conventional acupuncture in the treatment of ED.

Objective:To explore the reference interval of urinary iodine concentration(UIC)/urinary creatinine(UCr) ratio evaluating the iodine nutritional status in early pregnancy women.Methods:A reference interval of UIC/UCr ratio was determined among 5 609 early pregnant women with normal thyroid function, negative thyroid autoantibodies, and no history of diseases or taking drug that may affect thyroid function. Then we verified the reliability of this reference interval in a group of 7 514 women in early pregnancy.Results:We determined the UIC/UCr ratio of 75-149 μg/g as the reference interval. In the reference interval, thyroglobulin antibody(TgAb), thyroid peroxidase antibody(TPOAb), and thyroglobulin(Tg) were all at lower levels, and the overall distributions were approximately U-shaped. The prevalence of thyroid dysfunction, the positive rates of antibodies and the proportion of Tg>40 μg/L were the lowest within the reference interval, while higher on both sides of the interval.Conclusion:The reasonable reference interval of the UIC/UCr ratio in iodine-sufficient regions is 75-149 μg/g in early pregnerty women.

Objective To study the correlation between genetic polymorphisms of interleukin (IL)-1A/1B and susceptibility to tuberculosis (TB).Methods Genetic polymorphisms of IL-1A and IL1 B in 1032 TB patients and 1008 non-TB patients were analyzed using PCR-MassARRAY method.The correlation between genetic polymorphisms of IL-1A/1B and susceptibility to TB was statistically analyzed.Results Two tag SNPs of IL-1A and three tag SNPs of IL-1B were screened for the study.There were differences in the allele frequencies of rs2853550 and rs3783526 between TB group and non-TB group (P=0.047and P =0.034,respectively).IL-1 B SNP1 rs2853550 (P =0.025,OR =1.302,95 ％ CI =1.034-1.640,TC vs.CC) was found to be highly associated with TB,while the other SNPs showed no significant correlations with TB.Furthermore,IL-1B SNP1 rs2853550 [P=0.019,OR=1.308,95％ CI=1.045-1.638 for (TC+TT) vs.CC] in the dominant model conferred significant risk for TB,but IL-1A SNP2 rs3783526 [P=0.000,OR=0.764,95％ CI =0.591-0.988 for GG vs.(AA+GA)] in the recessive model showed protective effects against TB.The haplotype ‘TG’ in the IL-1B block showed a higher risk for TB compared with the common ‘ CA’ haplotype (P=0.032,OR=1.265,95％ CI=1.020-1.567).The diplotypes containing ‘ GA’ haplotype in IL-1A block and ‘ TG’ haplotype in IL-1B block were major risk factors for TB (for onecopy,adjusted P=0.014,OR=1.403 and 95％ CI=1.072-1.836; adjusted P=0.013,OR=1.339 and 95％ CI=1.063-1.688,respectively),but the diplotype with ‘CG’ in IL-1B block played a protective effect against TB (for two-copy,P=0.006,OR=0.664 and95％ CI=0.494-0.891).Conclusion The genetic polymorphisms of IL-1B rs2853550 might be closely associated with TB,but the GG genotype of IL1 A SNP rs3783526 might have the characteristic of anti-TB.

Objective To study the relationship between the genetic polymorphisms of carboxylesterase 1 gene (CESI) and the susceptibility to antituberculosis drug-induced hepatotoxicity (ATBDIH).Methods Genetic polymorphisms of CES1 in 473 tuberculosis patients with or without hepatotoxicity (200∶ 273) after antituberculosis chemotherapy were analyzed by PCR-MassArray.Results In4 tags of CES1 single nucleotide polymorphism (SNP),the frequency of the rs1968753 allele had statistical difference between the hepatotoxicity group and the no-hepatotoxicity group ( P =0.0236 ).The characteristics of anti-hepatotoxicity had been shown relationship with rs8192950 ( P =0.044,OR =0.649,95％ CI =0.426-0.989,AC/AA ) and rs1968753 ( P =0.048,OR =0.556,95％ CI =0.311-0.995,GG/AA).The diplotypes with ‘ CGC' haplotype exhibited significant protection against hepatotoxicity at one copy (P=0.048,OR=0.654,95％CI=0.430-0.996).Conclusions The genetic polymorphisms of CESI might have significant association with ATBDIH.SNP rs8192950 AC genotype and rs1968753 GG genotype might be the candidates for risk prediction of ATBDIH.