Drug-induced liver injury (DILI) is a leading cause responsible for the failure of drug development and for the withdrawal of commercial drug products.The high frequency of DILI is due in part to the physiology of the liver,since in many cases elimination of drug molecules from the body is dependent on hepatic clearance via either metabolism or biliary excretion.Many of the mechanistic details underlying DILI remain poorly defined in spite of extensive studies of the pathogenesis.In this regard,metabolomics may become a powerful tool for investigation of DILI,leading to better mechanistic understanding and biomarkers identification.

Objective:To establish the granulocyte-differentiation model of the HL60 cells which are treated with All-trans retinoic acid(ATRA),and to use the modified two-dimensional electrophoresis conditions to analyze the differences of protein expression between treated and untreated HL60 cells.Methods:HL60 cells were induced through treatment with All-trans retinoic acid(ATRA).For selection of the appropriate drug concentration and induction time,MTT and flow cytometry are used to detect the HL60cell proliferation and the expression of differentiation antigens CD11b respectively.Cellular chemical staining was used for the verification of the differentiation of the treated HL60 cells.The protein of HL60 cell lines could be separated by modified two-dimensional electrophoresis(2-DE).PDQuest software was used to analyze the different protein expression between treated and untreated HL60 cells.The protein was analyzed by matrix-assisted laser desorption -time of flight mass spectrometry(MALDI-TOF).Results:ATRA could inhibit HL60 cell proliferation,and with the increase in drug concentration,the effect of inhibiting was more significant.Treated with 2? M ATRA for five days,there were more than 90% of HL60 cells expressing antigenCD11b.Cellular chemical staining also showed that ATRA could induce HL60 cells to granulocyte cells.By the analysis of modified 2-DE and PDQuest software,25 protein spots was detected in untreated cells,while 15 protein spots was promoted Some of them were oncogene protein and suppressor gene protein,while some of others are involved in apoptosis.Conclusion:ATRA could induce HL60 cells to granulocyte cells in selected drug concentration and induction time.Using the modified two-dimensional electrophoresis conditions,different protein expression can be found from the traditional two-dimensional electrophoresis.

Glaucoma is the second leading cause of irreversible blindness worldwide.The treatment of glaucomatous eyes is a long-term procedure.Laser treatment is becoming one of the three major methods to lower intraocular pressure (IOP) of glaucomatous patients.Selective laser trabeculoplasty (SLT) mainly targets to the pigment cells on the trabecular meshwork and makes it easier for fluid to flow out of the front part of the eye,decreasing pressure in the eye.But,the actual mechanism of this surgery is below understood now.Compared with other laser therapy,SLT uses a lower-level laser to open the drainage angle of the eye,and therefore cause rare or slight complication,so it is thought to be a repeatable therapy to the patients who needs further treatment.The principle,clinical application,efficacy,safety and study progress about SLT for glaucomatous eyes are reviewed.

Craniocerebral Trauma ; surgery ; Humans ; Maxillofacial Injuries ; surgery ; Reconstructive Surgical Procedures ; methods

Objective:To explore the process of maintenance management for large medical equipment, and the structure design and core connotation of the maintenance management software of them.Methods: Medical linear accelerator of Precise series of Elekta company was combined to achieve the objective. From the aim of designing normal operation rate to start, the failure mode and effects analysis (FMEA) was operated to analyze the maintenance strategies and maintenance manners which were established on the basis of PDCA(Plan, Do, Check, Action) cycle and the analysis mode of SWOT (Strength, Weakness, Opportunity, Threat), and it could achieve the aim of normal operation rate.Results: Through explored the connotation of maintenance management and the preliminary framework of the software of maintenance management, the detail and process of maintenance management that based on personalized accelerator of process control were established, and the element factors of software of maintenance management of accelerator also was established at the same time.Conclusion: The effective maintenance management of large medical equipment is based on informatization process management of process control, and the element factor of management software need personalized customization. On the other hand, failure mode and degradation mechanism of equipment were the basis for personalized customization, and the creation has practical value.

Objective To investigate the influence of newborns born to mother with systemic lupus erythematosus (SLE).Method The clinical data of SLE mothers and their infants bern in the obstetric and were admitted to the neonatal ward ward of the First Affiliated Hospital of Guangxi Medical University from July 2012 to March 2015 were studied retrospectively.The infants were divided into active SLEactivity group and stable SLE group.The incidence of preterm birth,small for gestational age (SGA),cardiac conduction block,anemia,and thrombocytopenia were compared between the two groups of SLE mothers.Result A total of 66 infants were included in SLE mothers,including 14 cases (21.2％) of preterm infants and 18 cases of SGA (27.3％).14 cases belonged to the active SLE group while 52 cases belonged to the SLE stable group.When comparing the 2 groups,there were no differences found on the rates of preterm infant and small for gestational age (P ＞ 0.05).The cardiac conduction block,anemia and thrombocytopenia happened separately in three cases of the active group,which had not seen in the SLE stable group.There was no statistically significant difference between the two groups (P ＞ 0.05).Of the 66 cases,2 were diagnosed with neonatal lupus erythematosus (NLE) with an incidence of 3％.Conclusion SLE mothers with an active disease 10 days before delivery did not significantly increase the incidence of preterm infants and SGA,but were at risk of NLE.

Objective To determine and evaluate the method of localization of anal verge by mutislice spiral CT. To provide an imaging reference for operative guidance of low-rectal cancer. Methods Forty eight consecutive adult patients suspected of abnormalities other than rectal disease were evaluated with abdominal and pelvic CT scans since August, 2009. They were divided into two groups based on sex and age. There were 23 men and 25 women. The ages of young group were 28 to 50 years and the average age was 41 years. The ages of elderly group were 52 to 81 years and the average age was 64 years. A small cotton ball dipped with contrast media was put at the anal verge as a marker and CT scans were performed with 64-slice spiral CT scanner. The distances between the cotton balls and the lower margin of the pubis combination (La), the lower margin of the 5th sacral vertebra (Lb), the inferior aperture of minor pelvis(Lc) and the lower margin of the basement of external anal sphincter (Ld) were measured on the midsagittal images obtained by MPR. The averages, the standard deviations(s), the 95% and 80% confidence intervals of La, Lb, Lc and Ld were calculated. We took the intervals of ± 1.96 s or ± 1.28 s ＜ 5 mm as the standard of meeting the clinical requirement. The distances meeting the clinical requirement between different sex groups or age groups were compared with t test. Results The Ld was (9.8 ± 1.2) mm, ofwhich intervals of ± 1.96 s and ± 1.28 s were 4. 8 mm and 3.0 mm respectively, meeting the clinical need.This distance was also measured conveniently. There were no significant differences ( P ＞ 0.05 ) between two different sex groups [ male group, ( 10.0 ± 1.2) mm], female group, (9.6 ± 1.2) mm and between two age groups [ young group, (9.6 ± 1.2) mm, elderly group, ( 9.9 ± 1.3 ) mm ]. Conclusions The lower margin of the basement of external anal sphincter was a useful anatomic lanmark for localizing the anal verge,and could be definitely identified on the middle sagittal pelvic CT image. The distance between the structure and anal verge is constant enough and can be used in measuring distance from low rectal lesion to the anal verge.

Objective To analyze the coordination and continuity of service delivery for hypertension patients in rural health network,so as to provide references for improving integrated service utilization.Methods Self-developed questionnaire of service coordination and continuity delivery according to the research literature at home and abroad was used as the tool,and the data was analyzed by descriptive statistics.Results 49.6％ patients were accompanied by one or more diseases.About 73.0％ had seeking care experience in township health centers.Patients with seeking care to two or more medical institutions accounted for 51.3％.Recommending referral institutions for patients with poor therapeutic effect by grassroots doctors were the biggest proportion with 28.4％ and 68.7％ respectively.The proportion that superior doctors treating patients according to the related information from subordinate institutions was less than 43.0％,the proportion that junior doctors continuing to treat referral patients according to early diagnosis and treatment information was just over 40％.Easier upward referral but harder downward referral also existed among medical settings of different levels.Conclusion The disease characteristics of rural patients increased the possibility of seeking care among vertical medical institutions,but the level of continuity and coordination service delivery was not high in this network.So all-sided service integration to rural tertiary health institutions should be strengthened.

Objective To detect the effect of exogenous IL-6 on the proliferation of cholangiocarcinoma cell line QBC939.Methods MTT was used to observe the proliferation of cell line QBC939 treated with exogenous IL-6.Following the annexin V/FITC and PI staining,FCM was used to detect the apoptosis of QBC939 treated with exogenous IL-6.Results The proliferation of cell line QBC939 was increased after treatment with IL-6 and was positively related with the concentration of IL-6(P

Objective To explore specific risk factors in the early seizures after acute moderate and severe head injuries and understand incidence of nonconvulsive status epilepticus (NCSE) under coma. Methods Eighty-six patients with acute moderate and severe head injuries were monitored with video-electroencephalogram (video-EEG) for one week. Results (1) Of all, 7 cases (8.14%) had clinical seizures and 6 (6.98%) NCSE. (2) In patients with severe head injuries especially intracranial hemorrhage, post-traumatic seizures especially NCSE were more likely to occur, with no significant difference in sex and age. Conclusions Severe and critical head injuries and intracranial hemorrhage are specific risk factors for early post-traumatic seizures, especially NCSE. After brain injury, EEG should be used to evaluate traumatic coma even if clinical seizure does not appear.