The N-terminal tail of histone exposed to the surface of nucleosomes could be covalcnfly modificated. Chromatin condensation is controlled by modification of the amino acid residues in the histone effects functionally on the nuclear processes and DNA expression. A large number of study show that improper change of the state of methylations in lysine and arginine side chains of histone can induce hematological malignant. Modulation of histone methylation can inhibit cell cycle and induce apoptosis in hematological malignant ceils.

0.05).Conclusions Plasma fibrinogen level is affected by -148C/T polymorphism of ?-fibrinogen gene. High plasma fibrinogen level is a risk factor for ACI in Chinese young adults. With other risk factors and environmental factors, T allele increases plasma fibrinogen level and may be a heritable risk factor for ACI in Chinese young adults.

Objective To report the clinical outcomes of the patients with open comminuted intra-articular calcaneal fracture who were treated with our self-designed bilateral triangle external fixators which are extensible and gimbaled.Methods Between January 2011 and June 2014,12 patients with open comminuted intra-articular calcaneal fracture were treated and followed up.They were 8 men and 4 women,aged from 23 to 58 years (average,36.8 years).According to the Sanders classification,the fractures were type Ⅱ in 4 cases,type Ⅲ in 7,and type Ⅳ in one.According to the Gustilo classification,the soft tissue injury was type Ⅱ in 2 cases,type ⅢA in 7,and type Ⅲ B in 3.All the patients were treated with immediate debridement and preventive intravenous antibiotics.First stage wound closure or temporary coverage with vacuum sealed drainage was chosen according to the condition of soft tissue injury.Our self-designed bilateral triangle external fixators were applied together with cannulated screws or Kirschner wire in all the patients after Kirschner wire poking.Of them,7 received emergency treatment and 5 were treated 3 to 5 days after injury.After no wound infection was observed for sure,6 cases received selective open reduction and internal fixation via a lateral incision while 6 continued external fixation with Kirschner wire for 8 to 10 weeks (average,9.1 weeks).Results The 12 patients were followed up for 6 to 36 months (average,18.5 months).Their AOFAS scores averaged 84.6 points (range,from 74 to 94 points).One case required tissue transfer for wound coverage.Wound shallow infection developed in 3 cases.No deep infection or amputation happened.No wound infection or necrosis occurred in the 6 cases that had undergone open reduction and internal fixation at the second stage.Conclusion Application of our self-designed extensible gimbaled bilateral triangle external fixators in the treatment of open comminuted intra-articular calcaneal fractures may help effectively reduce the deep infection or incidence of osteomyelitis after operation as long as early debridement is thorough,internal fixation is timely applied,and indications for internal fixation are properly followed.

Objective To investigate the expression of histone acetylated H3 and H4, methylated H3K4 and H3K9 in diffuse large B-cell lymphoma (DLBCL). Methods The expression of histone acetylated H3 and H4, methylated H3K4 and H3K9 were examined by SP immunohistochemistry technique in lymphoid tissue of 40 cases with DLBCL and 16 cases with proliferative lymphadenitis. Results The expression of histone acetylation of H3 and H4 were lower than that in proliferative lymphadenitis. Histone methylated H3K4 was lower in expression and H3K9 was in higher expression. There was a positive correlative expression between the global histone acetylation of H3 and H4, the global histone acetylation of H3, H4 and histone methylation of H3K4. Conclusion Improper modification of histone acetylations and methylations may play an important role in pathogenesis in DLBCL.

Objective To analyze the basic situations and curative effect of psychotics treated in open psychotic ward in general hospital,and explore a new managing model with advanced treatment for psychosis patients.Methods 3 803 psychotics,treated in the open psychotic ward since it's setting,were analyzed as a retrospective study.Results The data including the proportion of diseases,the basic information of the patients,the length of stay and the curative effect,were different from that in traditional psychiatric facilities.Conclusion The open psychotic wards setting in general hospital is an effective treating and managing model for psychotics.

Objective:To establish the fingerprint analysis method for the root of Rosa laevigata Michx from different regions by UPLC. Methods:The column was ACQUITY UPLC? Phenyl(2.1 mm × 100 mm,1.7 μm). The mobile phase consisted of methanol-water with gradient elution. The flow rate was 0. 2 ml·min-1 , the detection wavelength was 210 nm, the column temperature was 30℃, and the injection volume was 3 μl. Results:The fingerprint consisted of 15 common peaks. The range of similarity for twelve bat-ches of the root of R. laevigata Michx was 0. 489-0. 942. And the reference fingerprint of the root of R. laevigata Michx was estab-lished by UPLC. Conclusion:The fingerprint method is simple and reproducible, which can provide basis for the quality control and the medicinal resources exploration.

Objective:To explore the potential of Taenia solium (Ts) 14-3-3.3 protein as a candidate molecule for cysticercosis vaccine. Methods:Sixty Kunming mice with the body weight of 18 - 22 g were selected and divided into 3 groups according to their body weight via the random number table method, including normal saline control group (control group), Ts14-3-3.3 recombinant protein vaccine group (vaccine group), and Ts14-3-3.3 recombinant protein vaccine + adjuvant group (vaccine + adjuvant group), with 20 mice in each group. The multi-point subcutaneous injection method was adopted. After the first immunization at 0 week, the booster immunization was carried out twice, a total of 3 times, with an interval of 2 weeks. Four mice in the three groups were killed at 0, 2, 4, 6 and 8 weeks after the first immunization, and the blood of eyeballs and spleen were collected aseptically for serum separation and preparation of spleen lymphocytes suspension [treatment: cell suspension, antigen-stimulate and concanavalin (Con) A-stimulate], respectively. The levels of mouse serum specific immunoglobulin (Ig) G, IgG2a, IgG1 and IgE were detected by indirect enzyme-linked immunosorbent assay (ELISA). The proliferation level of mouse spleen lymphocytes was detected via the CCK-8 method. The levels of tumor necrosis factor (TNF)-α, interleukin (IL)-12, IL-13 and IL-10 in culture supernatant of mouse spleen lymphocytes were determined by double-antibody sandwich ELISA.Results:The IgG, IgG2a, and IgG1 levels of the vaccine and vaccine + adjuvant groups immunized for 2 to 8 weeks were higher than those of the control group, and the above indicators of the vaccine + adjuvant group were higher than those of the vaccine group ( P < 0.05). With the same treatment between the groups, the proliferation levels of spleen lymphocytes and the levels of TNF-α, IL-12, IL-13, and IL-10 in the culture supernatant after 2 - 8 weeks of immunization were statistically significantly different ( P < 0.05); the proliferation levels of spleen lymphocytes and the levels of TNF-α, IL-12, IL-13 and IL-10 in the culture supernatant of the vaccine and vaccine + adjuvant groups immunized for 2 to 8 weeks were higher than those of the control group, and the above indicators of the vaccine + adjuvant group were higher than those of the vaccine group ( P < 0.05). When treatment was different in the group, the proliferation levels of spleen lymphocytes and the levels of TNF-α, IL-12, IL-13 and IL-10 in the culture supernatant of the antigen-stimulate and ConA-stimulate were higher than those of the cell suspension, and the above indicators of the ConA-stimulate were higher than those of the antigen-stimulate ( P < 0.05). Conclusion:The recombinant protein vaccine of Ts14-3-3.3 can induce an effective immune response in mice.

The disrupted caregiver infant relationships are not unpopular (infant abuse and non-traumatic caregiver-infant relationship).Animal and human studies have demonstrated this disruptive relationship exerts the fundamental and enduring impacts on stress system, limbic system and relevant cortex.Individual carrying such biological susceptibility might develop psychopathology under stresses at later life.The assessment needs to get involved the measures with more objectivity,real time and moment-to-moment components.The study on caregiverinfant relationship also should focus on the historical and cultural aspects of China.

Objective To explore the neuroprotective effect of targeted regulation Nrf2 gene on rats with brain injury caused by acute severe carbon monoxide ( CO ) poisoning. Methods A total of 180 healthy adult SD rats were divided into 4 groups at random:normal control group( NC group) ,CO poisoning group(CO group),lentivirus group(LV group) and Nrf2 gene therapy group(Nrf2 group),and 45 rats in each group. An acute CO toxic rat model was established by inhalation in a hyperbaric oxygen tank. The lentivirus group was directly injected with lentivirus dilution (4×106 TU/μl) into striatum with a microsy-ringe guided by a stereotactic apparatus,and the Nrf2 gene therapy group was administrated the same dose of recombinant Nrf2 gene lentivirus dilution,while rats in the normal control group and the CO poisoning group were received the same amount of normal saline. Five rats were taken and decapitated at day 1,day 7 and week 2 from each group,respectively. The mitochondrial membrane potential (MMP) of neurons in brain tis-sue was detected by JC-1 method,and the expressions of Nrf2 and GCLC proteins were observed by immuno-histochemistry and Western Blot. Results Compared with the NC group (cortex:(75. 3±6. 8);hippocam-pus:(76. 4±7. 1);striatum:(73. 8±7. 3)) at the same time point,the MMPs of neurons in CO group (cor-tex:(34. 5±6. 7);hippocampus:(30. 3±5. 6);striatum:(41. 5±6. 1) and LV group (cortex:(36. 8±6. 2);hippocampus:(30. 8±6. 0);striatum:(42. 7±6. 3)) were significantly decreased,and the difference was sig-nificant(P<0. 05). However,there was no significant difference between the CO poisoning group and the lentivirus group (P>0. 05). A small amount of Nrf2 protein (0. 22±0. 05) and GCLC protein (0. 24±0. 04) were expressed in the brain tissue of normal control rats. The expressions of Nrf2 protein (0. 31±0. 06,0. 31 ±0. 05) and GCLC protein (0. 30±0. 04,0. 31±0. 07) in CO group and LV group were slightly increased (P<0. 05). Similarly,there was no significant difference between the CO poisoning group and the lentivirus group (P>0. 05). The MMPs value of nerve cells in the Nrf2 group (cortex:(53. 3±5. 3);hippocampus:(56. 9±6. 1);striatum:(60. 6±6. 0)) also decreased,but it was significantly higher than that in the CO group and the LV group at the same time point (P<0. 05) . The expression of Nrf2 in brain tissue was signifi-cantly increased (0. 59±0. 05),and there was significant difference between CO group and LV group at the same time point (P<0. 05);GCLC protein increased slightly (0. 37±0. 06),but there was no statistical difference compared with CO poisoning group and lentivirus group (P>0. 05). Conclusion CO poisoning could induce oxidative stress and damage mitochondrial function of nerve cells. The active state of targeted regulation Nrf2 could significantly enhance the antioxidant capacity of rats and positively protect rats against brain injury induced by acute severe CO poisoning.

Objective:To investigate the characteristics of distribution and drug resistance of urinary bacteria in the mid-stream urine of patients with infectious stones.Methods:The retrospective study analyzed the clinical data of 254 patients with infectious stones in the First Affiliated Hospital of Guangzhou Medical University from September 2016 to September 2018. All patients were treated with PCNL. Overall, there were 101 male and 153 female patients, with the mean age of(51.5±12.3) years, and the mean stone burden of 1443.5(660.8, 2837.5) mm2. There were 58 (22.8%) patients with hypertension, 17(6.7%) patients with diabetes and 195(76.8%)with hydronephrosis. The mid-stream urine samples were obtained for bacterial culture and susceptibility test, and the results of urine culture and antimicrobial susceptibility were recorded and analyzed.Results:Of 254 patients involved in this study, 89(35.0%) were positive and 165 (65.0%) were negative for urinary bacterial culture of the mid-stream. The proportion of patients with positive urine bacterial culture of the mid-stream who had positive urine leucocytes, positive urine nitrite and postoperative pyrexia were 86.5%(77/89), 64.0%(57/89), 25.8%(23/89), respectively, which was higher than that of patients with negative urine bacterial culture of the mid-stream [50.3%(83/165), 14.5%(24/165), 14.5%(24/165), P<0.05]. Four teen kinds of bacteria were detected from the mid-stream urine, and the three bacteria with the highest detection rate in turn were Escherichia coli of 38.2%(34/89), Proteus mirabilis of 15.7%(14/89), and Pseudomonas aeruginosa of 11.2%(10/89). The results of this study showed that three common bacteria had high resistance to drug including Cefazolin, Cefuroxime, Cefuroxime ester, Ampicillin and Co-trimoxazole (all resistance rate>40%). The resistance rates of Escherichia coli and Pseudomonas aeruginosa to Ciprofloxacin and Levofloxacin were higher than or equal to 40%. The resistance rates of Escherichia coli and Proteus mirabilis to meropenem, imipenem, ertapenem, piperacillin/tazobactam and amikacin were all lower than 10%. In addition, the resistance rates of Escherichia coli to nitrofurantoin and tigecycline and Proteus mirabilis to tobramycin, aztreonam and cefoxitin were all less than 10%. The resistance rates of Pseudomonas aeruginosa to ceftazidime, cefepime, gentamicin and aztreonam were less than 10%. Conclusions:The highest detection rate of urinary bacteria in culture of the mid-stream with infectious stones are Escherichia coli, Proteus mirabilis and Pseudomonas aeruginosa, all of which showed high resistance to Ampicillin, Cotrimoxazole, and some cephalosporins. Escherichia coli and Pseudomonas aeruginosa showe high resistance to Ciprofloxacin and Levofloxacin, and all of the three bacteria have low resistance rates to some β-Lactamase inhibitor complex and carbapenems, suggesting a reference for clinical empirical medical treatment.