To investigate the role of malnutrition on expression of thymus melatonin receptor(MR), rats were fed with low protein diet to induce an experimental animal model of malnutrition. MR was detected by radioligand binding assay. In malnourished rats before pregnancy and those during pregnancy, the thymus development in their offsprings was retarded, and the expression of MR was lower than that of the controls. After fed with standard diet,the development of the thymus and the MR in the infant rats improved significantly. The results suggest that malnutrition can retard the development of thymus, so the production of MR in thymus is lowered, and this may affect the physiological role of melatonin.

Objective To study paraquat adsorbability of different field soils in Guangxi province of China. Methods HPLC method was adopted to measure the peak area of paraquat in three different media of four types of soils. Chromatographic column was Kromasil C18 column (4. 6 mm×200 mm, 5 μm); mobile phase was acetonitrile-water (including 0. 03 mol·L-1 sodium heptanesulfonate and 0. 24 mol·L-1 phosphoric acid) at a ratio of 397 (pH adjusted to 2. 0 by triethylamine). Detection wave length was 258 nm; column temperature was 25 ℃; the injection volume was 20 μL; flow rate was 0. 8 mL·min-1 . The peak areas of paraquat before and after being adsorbed were compared to calculate the adsorption rate of paraquat in different soils. Results All tested soil samples possessed the adsorption rate of paraquat over 99. 0%. Conclusion Four common field soils in Guangxi province can be used as temporary effective absorbents for the first-aid of paraquat poisoning.

Objective:To observe the adverse reactions of killer cytokine-induced (CIK) in the treatment of malignant tumor and to analyze the possible mechanism ,and to develop the targeted prevention and treatment measures .Methods: The clinical data, including various adverse reactions , laboratory tests and the corresponding preventive measures against adverse reactions .In 1 240 patients with malignant tumor after treated with CIK cells from May 2013 to September 2015 were retrospectively analyzed .Results:The main adverse reactions after the first infusion of CIK cells were weak (10%),fever(7.25%),shiver (4%),arthralgia (3%),systemic in flammatory response syndrome reaction ( 3%) , digestive tract discomfort ( 0.96%) , acute allergic reaction ( 0.08%) , rash (0.08%),angina pectoris (0.08%),tumor lysis syndrome(0%),infection(0%).With the increase of the treatment ,the incidence of adverse reactions increased and the fever was the main performance ,after the fourth course into the platform .The combination of blood pressure increased or decreased and severe allergic reaction and systemic inflammatory response syndrome was needed to be treated .The CIK cells were pretreated before treatment could reduce the incidence of these reactions .Conclusion:CIK cells therapy is a safe and effective adoptive immunotherapy for malignant tumor and its adverse reactions can be treated expectantly , but rare adverse reactions may have potential risks .

Objective To investigate the differentiation of neuroendocrine component (NEC) in colorectal adenocarcinoma in relation to its significance by comparing the outcome between patients with or without NEC.Methods The paraffin sections from patients with pathologically confirmed colorectal adenocarcinoma were retrospectively collected and screened for those with NEC by morphological examination and immunohistochemistry with neuroendocrine markers.Control patients (n=54) without NEC were selected from colorectal cancer database and 2: 1 matched on the basis of clinical features with NEC positive patients (n=27).Relative analysis was performed between two groups.Results With a median follow-up of 72 months,the 5-year disease free survival was 58.0% (16/27) in NEC positive group and 79.1% (43/54) in control group (P=0.036).Similarly,the 5-year cancer-specific overall survival was significantly lower in NEC positive group than in control group (58.3% versus 81.1%,P=0.037).Cox regression showed that the 5-year cumulative risks of disease recurrence and cancer-caused death in NEC positive patients were 2.38 and 2.41 times higher than those in control patients,respectively.Conclusions NEC appears to bear a poor prognosis in patients with colorectal adenocarcinoma.

Objective To study the significance of HSP47 gene in keloid formation after in vivo study with RNAi technology and the recombinant HSP4 7 siRNA against heat shock protein 47 to keloid in a nude mice model.Methods We injected RNAi mixture into the keloid of a nude mice model in experimental group and PBS water(0.25 ml)into control group at the 16th days after establishing the models.After interference we observed the specimens and harvested specimens at 7th days for biochemical and pathological analysis.Results The expression of HSP47 mRNA reduced obviously and the collagen content also reduced in the experimental group.The rusults had statistical significance.Conclusion We can suppress the expression of HSP47 gene and then reduce the production of collagen after in vivo interfering experiment with HSP4 7 siRNA in keloid nude mice models using RNAi technique.This study cornfirms the mechanism that HSP47 promotes the keloid formation,which provides a new target to treat keloid.

Objective To investigate the protective effects of alpha-lipoie acid (ALA) against beta-cell damage in streptozotocin (STZ)-induced diabetes in rats. Methods Thirty SD rats were randomly divided into three groups: normal control (NC) group, STZ group and ALA + STZ group, with 10 rats in each group. mg/kg, intraperitoneal injection), till the end of the study (4 weeks later). Blood glucose were measured every 3 days after STZ injection. Malondialdehyde (MDA) and reduced glutathione (GSH) levels were measured in pancreatic homogenates. Pancreatic beta-cells were examined by immunohistocbemical methods, Results STZ induced a significant increase of the level of blood glucose. Body weight of rats in ALA + STZ group was (341±26)g, which significantly lower than (368±3)g in NC group, and high than (301±2)g in STZ group with stas(P < 0. 05). Meanwhile the MDA levels in STZ group and NC group were(1.22 ± 0. 14) and(0.57 ± 0.04)nmoL/mg prot, respectively, and there was significant difference between the two groups (P < 0.05) ; the GSH levels in STZ group and NC group were(16.54 ± 1.10) and(25.46 ± 0.62) mg/g prot (P < 0.05), respectively; degeneration of islet cells and decreased blood glucose were observed in STZ + ALA-pretreated rats; MDA level in pancreatic homogenates was(0.72 ± 0. 23)nmoL/mg prot, which was significantly lower than that in STZ group (P < 0.05) ; the GSH level was (35.33 ± 2.66) mg/g prot, which was significantly higher than that in STZ group (P < 0.05) ; increased staining of insulin and preservation of islet ceils functions were more obvious in the STZ + ALA-pretreated rats. Conclusions ALA exerted its protective effect through reducing the oxidative stress and preserving pancreatic beta-cell integrity.

BACKGROUND: With the rapid development of digital orthopaedics, navigational template has been widely used in the field of orthopaedics, but the research status of the technique in China based on bibliometric analysis is never reported. OBJECTIVE: To investigate the application status of navigational template in the orthopaedic field and to explore its tendency and hot spot based on bibliometric analysis, thereby providing reference for the development of digital orthopaedics in China.METHODS: A computer-based retrieval of CBMdisc, CNKI, CSPD, CMCI databases was conducted for articles published before December 1, 2016 using the keywords of navigational template and subject heading orthopaedics and the core orthopaedic journals published in 2016 were searched by manual. The articles were screened according to inclusion and exclusion criteria, and finally were analyzed by bibilometric study.RESULTS AND CONCLUSION: (1) In China, the first paper reporting navigational template was issued in 2008. A total of 199 articles were published in the past 9 years, with more than 10 papers yearly from 2009 to 2014, while there was a rapid increase tendency during 2015 and 2016. (2) The articles were mainly published in the orthopaedic journals and some professional journals closely related to digital orthopaedics, such as biomedical engineering, basic medicine and digital medicine. About 86.9% papers belong to Chinese core journals, including Chinese Journal of Orthopaedic Trauma,Chinese Journal of Orthopaedics, and Chinese Journal of Tissue Engineering Research. (3) There is a 99.5% cooperation rate and 6.15 degree of cooperation. Zhang Yuan-zhi, Ding Huan-wen, Lu Sheng, Chen Yu-bing, Hu Yong,Huang Xuan and Zheng Peng-fei are most productive authors, and core authors contribute to 53.8%, indicating that the group of core authors is being formed. First authors are all from hospitals and universities, mostly from Kunming General Hospital of Chengdu Military Command of PLA, General Hospital of Guangzhou Military Command of PLA, the Affiliated Hospital of Inner Mongolia Medical University and South China University of Technology. The cooperation rate of more than two institutes occupies 54.8%, indicating that the study holds a promising future with the strong support of research institutes in universities. About 59.3% articles are sponsored by funding, the national and provincial foundations accounting for 64.0% in 239 projects, and 57.6% articles were supported by more than two foundations, revealing the high research levels and academic values of this technique. (4) The articles are cited by 763 times; Lu Sheng,Chen Yu-bing, and Zhang Yuan-zhi are the highly cited authors; Kunming General Hospital of Chengdu Military Command of PLA, General Hospital of Guangzhou Military Command of PLA and Nanfang Hospital of Southern Medical University are the highly cited institutes, and Chinese Journal of Orthopaedic Trauma is the highly cited journal. (5) To conclude, based on product design, manufacture and cadaver studies of the navigational template, it has been extensively applied in the spine surgery (especially cervical surgery), orthopaedic traumatology, bone and joint surgery,bone tumor and pediatric orthopaedics, and has obtained satisfactory clinical outcomes in assisting screw placement,osteotomy and precise resection and functional reconstruction. However, there is still a lack of a large-sample,multicenter, and long-term randomized trial.

Purpose To explore the image quality, radiation dose and diagnostic accuracy of double flash scanning mode in patients with coronary artery stent. Materials and Methods Sixty-three patients with coronary stents underwent CT coronary artery imaging using conventional coronary artery angiography as the gold standard. Double flash mode was used in patients with heart rate ≤ 70 beats per minute. Spiral scanning was used in patients with heart rate between 70-100 beats per minute. The image quality, vascular CT value, noise, SNR and CNR were compared. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy were determined, and the radiation dose was calculated. Results There were 59 stents in Double flash group (57 were diagnostic) and 58 stents in spiral group (all diagnostic). There was no statistically significant difference in image quality, CT value, noise, SNR or CNR for the first scan between two groups (P>0.05). Image quality for the second scan in Double flash group showed statistical difference with the first scan and spiral group (P<0.05). The sensitivity, specificity, positive predictive value, negative predictive value and accuracy of Double flash and spiral group were 90.0%, 89.8%, 64.3%, 97.8%, 89.8% and 83.3%, 95.7%, 83.3%, 95.7% 93.1%, respectively. The sensitivity, specificity, positive predictive value, negative predictive value and accuracy for stents with diameter ≥ 3.0 mm were significantly higher than stents with diameter <3.0 mm. The radiation doses of Double flash group were significantly lower than the spiral group (P<0.05). Conclusion Double Flash mode scanning provides good image quality and diagnostic accuracy with lower radiation dose in patients with coronary artery stents. Imaging of stents with diameter ≥ 3.0 mm is superior to stents with diameter <3.0 mm.

Objective To investigate the nursing care experience of patients with splenic artery embolization after liver transplantation. Methods Eight hypersplenism patients after liver transplantation and treated with splenic artery embolization therapy admitted to Tianjin First Center Hospital from January 2016 to July 2017 were enrolled, their nursing postoperative measures were retrospectively analyzed, and the incidences of complications were observed. Results After treatment and careful nursing, no serious postoperative complications occured in all 8 patients. One postoperative patient appeared dizziness, nausea, vomiting, after metoclopramide dihydrochloride injection 10 mg intramuscular injection for 1 hour, later nausea was ameliorated. There were 3 cases with fever, their temperature in 2 cases did not exceed 38 ℃, and they could tolerate, after drinking extra water, their temperature was lowered to below 37 ℃, one case with persistent fever received intramuscular injection of aminophenazoneco 2 mL, 2 hours later, the temperature dropped to 37.3 ℃, and after 4 hours the body temperature returned to normal. One case returned to the ward for 4 hours when the compressor was released, one week later, blood exudation was seen at the puncture point, by tightening the compressor again, the exudation was stopped and no hematoma occurred. The postoperative pain tolerance was observed in 7 cases; 1 case suffered from severe pain of score 7, fentanyl transdermal patches were used to relieve pain. None of the 8 patients showed thrombosis. After careful treatment and nursing care, all the 8 patients were discharged from hospital upon recovery. Conclusion After the splenic artery embolization treatment was carried out for postoperative patients with liver transplantation, their disease situations should be carefully observed, symptomatic treatment ought to be done and the occurrence of postoperative complications should be prevented to guarantee the patients' safety, that are the key measures to ensure the nursing quality.

Objective:To analyze the clinical characteristics of lung abscess related to adenovirus (ADV).Methods:The data of 5 cases suffering from pulmonary abscess by ADV in Guangzhou Women and Children′s Medical Center from January to December 2019 were collected, including general information, clinical characteristics, examination and follow up visits.Results:The age of the patients ranged from 4 months to 12 months and the mean age was 8.6 months.All of them had fever and the degree was more than 39 ℃.What′s more, they had the history of cough and sputum.Somebody had dyspnea and pleural effusion.The imaging examinations of 5 cases strongly suggested that the interstitial and parenchymal lung disease subsequently appeared different sized cystic shadow, liquid flat cystic shadow, thickened wall empty tissue image, while some cases displayed the pleural effusion.The ADV-PCR or ADV-IgM were positive in the children, while the C-reactive protein, white blood cells and neutrophile were higher than the normal, but some were not.All the platelet count and lactate dehydrogenase were higher than the normal.Three children experienced the surgical treatment and their pathologic result revealed lung abscess.All the children were cured after the treatment, with good prognosis.Conclusions:Lung abscess related to ADV was rare in children and its system was not clear.If children who suffered from ADV were not cured after the treatment for a long time, the CT scan can differentiate whether it was combined with the complication of lung abscess or not.Early therapy for these patients could obtain satisfactory prognosis.