Objective To study the incidence and risk factors of retinopathy of prematurity (ROP) in a single tertiary center during different times(Phase 1:2009 to 2011;Phase 2:2012 to 2014). Methods From 2009 to 2014, fundus examinations were performed on premature infants admitted to NICU of our hospital. The incidence and risk factors of ROP were compared between the two phases. Results During Phase 1,68 (11. 1% ) cases were diagnosed with ROP among 614 premature infants. During Phase 2, 121 (15. 2% ) cases were diagnosed with ROP among 794 premature infants. The incidences of ROP between the two phases were significantly different (P <0. 05). During Phase 1 and 2, 10 (14. 7% ) infants and 12 (9. 9% ) infants were diagnosed with Grade 3 and above or threshold ROP, respectively. The incidence of Grade 3 and above or threshold ROP between the two phases were also significantly different (P < 0. 05). Logistic analysis demonstrated that gestational age(GA), birth weight (BW), duration of oxygen therapy and mechanical ventilation(MV) were independent risk factors during hase 1, whereas GA, MV and blood transfusion were independent risk factors during Phase 2. Pulmonary surfactant (PS) was protective factor of ROP in both two groups. GA in Phase 2 was significant lower than Phase 1 (P <0. 05), while duration of oxygen therapy, incidence of MV, PS and blood transfusion were higher in Phase 2 ( P < 0. 05) . Conclusions The incidence of ROP has increased. Reducing the incidence of preterm delivery, duration of oxygen therapy, incidence of MV and blood transfusion has important role in preventing ROP. Reducing the use of MV and the oxygen concentrations, appropriate PS therapy and focusing on early ophthalmic screening are important preventing severe ROP.

Based on the global burden of disease classification, to explore the scope of chronic diseases. Methods:Searching relevant literature and books to screen and remove the acute non-communicable diseases among the non-communicable diseases which is the second category of global burden of disease ( GBD) classification. Results: Acute non-communicable diseases mainly concentrated on the acute inflammatory diseases, it also existed in other acute diseases which are not caused by infection. Conclusion: To screen and remove the acute non-communicable diseases in the non-communicable diseases could define the scope of non-communicable chronic diseases on certain extent, which has certain significance for the workers who study all chronic diseases.

Objective To observe the effect of Chinese herbs most used in rheumatoid arthritis such as diaphoretics (ephedra), wind-expelling herbs (monkshood), blood activating drugs (angelica) and compound mixture in treating adjuvant arthritis, and study the compatibility law. Methods AA rats in groups were treated with ephedra-cinnamon twig mixture, monkshood-aconitum mixture, angelicachuanxiong mixture, herbs compound mixture, low dose herbs compound mixture which is composed of above-mentioned herbs and semblable function herbs. Compare with normal group, model group, tripterygium wilfordii hook (TWH) group, TNF-? and PGE2 level of hindpaw were measured by ELISA and spectrophotometer. Weight index of immune organs were measured to study the effect of different functional ingredient groups and complex on immune function. Result The hinderpaw PGE2 level and TNF-? level of model group was higher than normal group (P

Objective:To investigate prognostic factors of the T-cell non-Hodgkin’s lymphoma (T-NHL),and to study the clinical efficacy of CHOPE plus L-asparaginase (L-ASP)regimen for T-NHL.Methods:Retrospective analyses were made of 61 T-NHL patients who were treated from July 2007 to August 2013.Randomly divided into two groups CHOPE and CHOPE +L group (Based on CHOPE,added with L-ASP on the 1st,3rd,5th,7th,9th and 11th day).Results:Of the 61 patients evaluatd with the median survival was 22 (3 -65)months,the complete remission rate was 52.50%,the partial remission rate 29.51%,and the response rate 80.01%.The complete remission rate was 57.89%,and the patial remission rate 84.21% in CHOPE +L and the complete remission rate 43.48%,the response rate 78.26% in CHOPE,respectively (both P >0.05).The 1-,2-,and 5-year overall survival rates were 91.0%,87.6% and 65.7% respectively (P >0.05 ).But the overall survival rate in CHOPE +L was significantly higher than that in CHOPE group in extranodal NK/T-cell lymphoma,nasal type (ENKTCL)(P <0.05 ).The analysis of the prognostic factors indicated that ENKTCL,the outside junction lesions,and the CR rate were poor factors with statistic significance in T-NHL.Conclusion:CHOPE +L regimen has better efficacy for ENKTCL,but whether CHOPE +L regimen is used in the treatment of T-NHL,large prospective clinical trials are worth for further investigation.

Objective To evaluate the accuracy and reliability of cone-beam computed tomography (CBCT) in the diagnosis of periodontal bone defects in the elderly.Methods The 38 teeth of 27 cases were collected and scanned both with CBCT technology and periapical radiography (PA).Periodontal bony defects were identified and linear measurements were made for all defects.All cases were treated with periodontal flap surgery with the bony defects and their linear measurements detected during operation as the gold standard.Results All periodontal bony defects were identified with CBCT with its accuracy rate of 100.0％ (72/72),but the buccal and lingual defects could not be measured by PA with its accuracy rate of 62.5％ (45/72).Linear measurements for all defects revealed no statistical differences between CBCT and direct measurement [(5.516 ± 0.393) mm vs.(5.385± 0.415) mm,t=1.948,P＞0.05],but there was a significant difference in linear measurement between PA and direct measurement [(6.311±0.439) mm vs.(5.411±0.418) mm,t=9.956,P＜0.05].Conclusions CBCT can offer the diagnostic information for periodontal bone defect from three dimensional direction in the elderly,provide objective and accurate assessment of alveolar bone resorption,and has higher accuracy and reliability.

Objective T o explore the crim inal characteristics of forensic psychiatry expertise in depression patients and schizophrenics w ith hom icide behavior. Methods A total of 40 depression (depressive episode) patients and 50 schizophrenics w ith hom icide behavior w ere random ly assigned into the study group and control group, respectively. D ata of dem ographic and crim inal characteristic of the tw o groups w ere collected by a self-designed questionnaire, and then w ere com pared. Results T here w ere no statis-tical differences in age, education level and career betw een study and control groups (P>0.05). C om pared w ith the control group, the victim s in the study group w ere m ainly the patient's children and parents, and m ost offenders had suicidal behavior after hom icide (70% ). In study group, the m otives of crim e w ere m ainly extended suicide and indirect suicide, and m ost offenders had attem pted suicide (85% ) and dim inished capacity of crim inal responsibility (70% ), w hich in control group had no capacity of crim inal responsibility (56% ). E xcept for crim inal site, there w ere statistical differences in other crim inal charac-teristics betw een tw o groups (P<0.05). Conclusion T here are different crim inal characteristics betw een de-pression patients and schizophrenics w ith hom icide behavior in forensic psychiatry, and these characteris-tics should be considered w hen these tw o diagnoses are distinguished in forensic psychiatry expertise.

Object To study the "floating sugar" mechanism in the root of Achyranthes bidentata Bl. Methods The important influent factors were analyzed by orthogonal test. Results The primary and secondary orders of influent factors were surrounding temperature, relative humidity, raw drug moisture. The best preservative condition: surrounding temperature is 25 ℃, relative humidity 60% and drugs moisture 11%. Conclusion Raw drugs can be stored safely when surrounding temperature is below 35 ℃, relative humidity below 70%, raw drug moisture between 9% and 13%.

Objective To investigate the situation of oxygen supplement and the incidence and clinical characteristics of long-term oxygen inhalation newborns in neonatal intensive care unit(NICU).Methods The records of oxygen supplement and the related clinical data of 12 155 neonates admitted in our NICU from Oct 2009 to May 2011 were collected and retrospectively analyzed.The results were compared with the data from a survey on 19 hospitals in China which reported by other authors.Results In 12 155 newborns,4 951 were full term,7 204 were preterm.One hundred and two patients (0.84％,102/12 155 ) accepted oxygen for more than 28 days.Among them,88 were preterm,14 were full term,with the average gestational age (31.16 ±3.70) weeks,the average birth weight (1.60 ±0.68) kg and the mean oxygen supplement period (40.60 ± 12.25) d.Finally,98 were cured or improved,4 died.The incidence of bronchopulmonary dysplasia (BPD) in 7 204 preterm infants was 1.22％ ( 88/7 204) according to the standard of continuous oxygen supply more than 28 days after birth.The incidence of BPD in preterm infants less than 32 weeks was 4.92％ (68/1 381 ) according to the standard of continuous oxygen supply more than 28 days after birth,while the rate was only 2.10％ (29/1 381 ) according to the standard of continuous oxygen supply more than 36 weeks postmenstrual age.The rates of BPD according to the two different standards were significantly different ( x2 =16.251,P ＜0.001 ).There were significant differences in the rate of supply oxygen( x2 =119.99) and supply oxygen time( F =109.27 ) among different gestational age groups in overall the 5 499 neonates ( P ＜0.001 ),but no significant differences in the average time of oxygen supply and mechanical ventilation among different gestational age groups in infants with long-term oxygen dependence ( P ＞ 0.05 ).There were significant differences in rates of pulmonary surfactant therapy,heart failure,retinopathy of prematurity,congenital heart disease,other congenital malformation and mortality among different gestational age groups in long-term oxygen dependence infants (x2 =8.789,13.538,23.176,7.778,8.842,8.246,P ＜ 0.05 ).As compared with the data from 19 hospitals,the corrected rate of long-term oxygen supplement in preterm infants in our hospital was obviously lower[0.99％ (71/7204) vsl.54％ (190/12 351),P ＜0.001].Conclusion Theincidence of BPD in our NICU is low.Lower gestational age,immature lung and secondary lung injury may be the mainly cause of neonatal long-term oxygen dependence,but some factors such as congenital heart disease,congenital malformations should be considered in more mature infants.The most appropriate standard for BPD still remains to be discussed.

Objective:To search for differences in early immune reconstitution after allogenic or autolo-gous hematopoietic stem cell transplantation (HSCT).Methods:The peripheral blood (PB)from 31 adult patients undergoing allogenic HSCT (allo-HSCT,1 5 patients)or autologous HSCT (auto-HSCT, 1 6 patients)for the treatment of hematological malignancies and from 20 related healthy controls (HC) from December 201 1 to August 201 4 was used to analyze the kinetic recovery of lymphocyte subsets by means of flow cytometry during 1 2 months after HSCT.The T cell receptor rearrangement excision circle (TREC)levels among CD3 + T cells were measured in the patients and HC to evaluate the thymic-dependent T cell reconstitution.Results:The allo-and auto-HSCT recipients did not differ significantly in CD4 + T cells,CD8 na?ve T cells,effecter memory T cells (TEM),CD4 central memory T cells (TCM),mid-activated T cells and dendritic cells (DC)during the follow-up (P >0.05).But they both differed significantly from HC (P <0.05).CD8 + T cells and NK cells reconstructed rapidly.There was no significant difference in the numbers of B cells between the allo-and auto-HSCT groups from M1 to M3 (P >0.05).B cells in both the groups were lower than those in HC (P <0.05).The recovery of B cells in auto-HSCT group was faster than in allo-HSCT group at M6 and M1 2 (P <0.05).The frequen-cies of CD4 na?ve T cells and later activated T cells in allo-HSCT group were significantly higher than in auto-HSCT group at M6 and M1 2 (P <0.05).The frequencies of CD8 TCM in auto-HSCT group were significantly higher than in allo-HSCT group at M6 and M1 2 (P <0.05).The TREC levels were signifi-cantly lower than in both the groups compared with the age-matched HC during the follow-up (P <0.05).No significant difference was observed between allo-HSCT and auto-HSCT groups (P >0.05). Conclusion:The differences of the nature and the speed of lymphocyte reconstitution observed between the two patents groups were minor.This leads us to conclude that in allografted patients,immune recons-titution and subpopulations of peripheral blood lymphocytes are probably not related to the allogenicity of the graft,but due to the impaired thymus functions and slow differentiation of T lymphocytes in thymus.

Objective To investigate the parental origin for a rare case of complete hydatidiform mole and coexisting fetus and to discuss its diagnosis and differential diagnosis.Methods Tissues from the fetus,mole and placenta were collected and pathology analysis and chromosome analysis were done.The DNA from the fetus,mole and parents' peripheral blood leukocytes was amplified with five short tandem repeat (STR) markers (D4S2460,D18S488,D21S2039,DXS1205 and DYS219) at the same time to confirm the parental source of the hydatidiform.Results (1) Casereport:A 27-year-old woman,gravida 1,para 0,was found high risk for neural tube defects at 20 weeks of gestation.At 24+5 weeks of gestation,ultrasound examination demonstrated a normal fetus,a normal placenta and a huge mass with a multicystic appearance attached to the placenta with an obvious demarcation.The fetus died at 26 weeks of gestation.Serum human chorionic gonadotropin-β(β -hCG) level decreased obviously during the first two weeks after artificial induction,but elevated at the third week,and β-hCG titers fell to normal after 2 courses of chemotherapy.Fetus autopsy showed no structure abnormality.Histopathologic examination of the hydatidiform showed swelling of chorionic villi with hyperplasia of the trophoblast and formation of central cisterns suggesting of a twin pregnancy consisting of a complete hydatidiform mole and coexisting fetus.(2) Genetic analysis:The karyotype analysis of the normal placental villi was 46,XY; the cell cultures of fetal cartilage tissue and hydatidiform were failed.STR analysis showed that the fetus was diploid from biparental source;the mole was androgenetic source.And the mole had locus both from Y and X chromosome of the father,so it was heterozygous.It was suggested that this case was derived from one single oocyte fertilized with three spermatozoas.Conclusions STR analysis could be used to confirm the diagnosis of complete hydatidiform mole and coexisting fetus and to find the pathogenetic rnechanism.