Objective To evaluate the effect of phosphocreatine in the treatment of infant with Pneumonia complicated with myocardial injury.Methods Sixty-eight infants with Pneumonia complicated with myocardial injury were randomized into treatment group (n = 36)and control group (n = 32) .The two groups were both treated with combined anti-infection, antiasthmatic and supporting treatments while the treatment group was given additional phosphocreatine.The ECG,recovery of myocardial enzymes, recovery time of major clinical symptoms and syndromes and the period of hospitalization of the two groups were compared.Results Recovery of ECG and myocardial enzymes in the treatment group (94.44％ and 94.44％)were significantly higher than those in the control group(78.13％ and 75.00％ ,respectively) (x2 =3.93 and 5.11 ,respectively,P ＜0.05).Recovery of clinical presentations were more rapid in the treatment group than that in control group (time for cough recovery, [9.5 ± 2.4]d vs.[11.1 ± 2.6]d ;time for rale disappearance, [8.1 ± 1.9]d vs.[10.3 ± 2.4]d) (t =2.63 and t =4.16 respectively ;P ＜0.05 and ＜0.01 respectively).The period of hospitalization was decreased markedly in the treatment group compared with that in the control group([11.5 ±2.2]d vs.[14.3 ±2.8]d) (t = 4.55, P ＜ 0.01) .ConclusionPhosphocreatine has prominent efficacy in the treatment of infantile Pneumonia complicated with myocardial injury.

Objective To observe the effect of hepatocyte growth factor on preserving isolated heart of rats. Methods Forty rats were random divided into two groups: Control group(n=20)which rat hearts were isolated and preserved in 4℃HTK solution, and experimental group(n=20)which rat hearts were isolated and preserved in 4℃ HTK+rh-HGF(100μg/L)solution. Before operation and rat hearts were subjected to 8 hours(groupA,C)or 12 hours(group B,D)hypothermic storage followed by 5 minutes of normothermic reperfusion onmodifiedLangendorff-Neely model. The recovery rate of cardiac function after myocardial preservation, such as LVSP and LVDP and±dp/dt max and the changes of CK,LDH,NO and ET were measured. Cell apoptosis was detected by TUNEL staining and the expression of c-met was analyzed by immunohistochemical method. The expression change of bcl-2 mRNA was examined by RT-PCR. Results Compared with control group, experimental group showed that a significantly higher recovery rate of LVSP,LVDP and±dp/dt max(P＜0.01) and lower rate of TUNEL positive cardiomyocytes(P＜0.01) after reperfusion. The leakage of CK and LDH was significant lower than that of control group(P＜0.01). Immunohistochemical analysis revealed that c-met receptor expression was stronger in the HGF-treated myocardium than that in the non HGF-treated myocardium after storage, and this was associated with a stronger expression of bcl-2 mRNA. Conclusion The administration of rh-HGF before storage improved cardiac function after prolonged myocardial preservation by preventing apoptosis and enhancing expression of bcl-2 mRNA. Thus, the addition of rh-HGF in the storage solution may be a promising strategy for prolonged heart graft preservation.

Objective To investigate the autistic symptoms or autistic trait in the children with attention deficit hyperactivity disorder(ADHD) for facilitating the development of appropriate interventions.Methods Sixty-two 6-12-year-old high-functioned autism spectrum disorder (ASD),ADHD and typically developing (TD) children were assessed respectively using Chinese-version social responsiveness scale (SRS),and ADHD core symptoms were assessed in the ADHD children at the same time.Results ASD group＞ADHD group＞ TD group on the SRS total raw score and the five dimensions scores as well(P＜0.01).ASD,ADHD and TD group scored respectively 92.43±19.17,65.66±19.86 and 38.40±10.68 on the SRS total scale.The SRS total raw score of ADHD group exceeded the TD group for 2.55 standard deviant (SD) and with social communication (2.00 SD) and autistic mannerism (2.71 SD) deviating the most.22.58％ (14 out of 62) children with ADHD scored above the threshold on the SRS total raw score which was significantly higher than that in the TD group(P＜0.01).There were nonsignificant differences in the ADHD core symptoms between ADHD± children (with the SRS total raw score ≥85)and ADHD-children(with the SRS total raw score＜85) (P＞0.01).Conclusion Children with ADHD appear more ASD symptoms than the TD children and a considerable proportion of them reach the SRS diagnostic cut-off point.

The aim of the study was to prepare enrofloxacin nanosuspension injection and evaluate its pharmacokinetics after giving a single intramuscular injection.The high pressure homogeneous technique was used to prepare enrofloxacin nanosuspension injection and preliminary evaluation of the quality was done.The high performance liquid chromatography (HPLC) method was used to determinate content of enrofloxacin in pig plasma.And the pharmacokinetic characteristics of enrofloxacin nanosuspension injection were compared with Baytril injection.The content of enrofloxacin in this preparation is 97.9％.The average particle size of enrofloxacin nanosuspension injection was (613.21±5.78) nm,PDI was (0.22±0.02) and the potential was-2.02 mV.Maximal plasma concentrations were (0.32±0.12) and (0.67 ± 0.09) mg/L after i.m administration with enrofloxacin nanosuspension injection and Baytril injection.The peak times were (2.88 ±0.96) and (0.79±0.26) hours,respectively.Mean elimination half-lifes were (5.99± 1.37) and (4.49 ± 1.25) hours,respectively.Areas under concentration-time curve were (4.63±1.30) and (4.40±0.45) mg/L · h,respectively.Mean residence times were (9.59±2.34) and (5.41±1.10) hours,respectively.The relative bioavailability of enrofloxacin nanosuspension injection was 105.2％.The preparation method of high pressure homogeneous was simple and good reproducibility.Enrofloxacin nanosuspension injection was characterized by non-sedimentation,easy-redispersion,relatively stable.Comparing with Baytril injection,enrofloxacin nanosuspension injection had a certain slowrelease effect,showing slower elimination than enrofloxacin injeetion.

Intensity-modulated radiation therapy(IMRT) is currently the main treatment method for nasopharyngeal carcinoma. During radiotherapy for nasopharyngeal carcinoma, factors such as body mass reduction, tumor regression, and organ displacement at risk can affect the precise implementation of radiation therapy. Applying adaptive radiotherapy (ART) technology to optimize the treatment plan at the appropriate timing can reduce the adverse effects caused by the above factors and enhance the accuracy of radiotherapy. There are no uniform standards for the necessity, timing, and case selection of ART. In this review, the research progress of ART in the radiotherapy of nasopharyngeal carcinoma in recent years was reviewed to provide a reference for further clinical application of ART in nasopharyngeal carcinoma.

Objective : To summarize experience treating dog bites in the oral and maxillofacial regions of children and provide a reference for clinical practice. Methods : Nineteen children with dog bite wounds in the maxillofacial region were treated from July 2011 to June 2018 with primary debridement and suturing. A rabies vaccine, tetanus vaccine and human immunoglobulin as a passive immune agent were given via intramuscular injection. Anti-inflammatory therapy with amoxicillin and clavulanate potassium or other antibiotics. Follow-up observation and a retrospective analysis of the treatment effect were carried out. Results: After treatment, among the 19 pediatric patients, 18 cases showed primary healing and 1 case showed secondary healing. The follow-up period ranged from six months to seven and a half years. No cases of rabies occurred. Conclusion For the treatment of patients with maxillofacial dog bite wounds, the first stage debridement and suture can reduce the scar after operation and is beneficial to the recovery of face.

【Objective】 To investigate cortical thickness changes in the face-head region of the primary motor cortex (PMC) and its effect on survival in amyotrophy lateral sclerosis (ALS) patients. 【Methods】 A retrospective analysis was performed on 105 ALS patients who underwent head MRI scan at the same time. The A4hf (face-head) region of PMC was used as the region of interest (ROI). According to clinical symptoms, patients were divided into two groups: bulbar involvement and non-bulbar involvement. The differences of clinical features and cortical thickness in ROI were analyzed. According to the symptoms of bulbar palsy, physical examination of nervous system and EMG of tongue muscle, the patients with bulbar palsy were divided into lower motor neuron (LMN), upper motor neuron (UMN) and LMN+UMN groups. The differences of bulbar subgroup score and ROI of cortical thickness were analyzed. Age at onset, body mass index, delayed time of diagnosis, bulbar subgroup score, and ROI cortical thickness were included in survival analysis. 【Results】 ① The ROI cortical thickness was significantly lower in bulbar involvement group than non-bulbar involvement group (-0.198±0.87 vs. 0.235±0.95, P=0.017). ② There were no significant differences in the bulbar subgroup scores or cortical thickness of ROI between LMN, UMN and LMN+UMN groups (P>0.05). ③ Survival analysis showed age of onset (HR=3.296, 95% CI:1.63-6.664, P=0.001), delayed time of diagnosis (HR=0.361, 95% CI:0.184-0.705, P=0.003), bulbar subgroup score (HR 0.389, 95% CI:0.174-0.868, P=0.021), and ZRE_ROI cortical thickness (HR=2.309, 95% CI:1.046-5.096, P=0.038) were independent influencing factors of ALS survival. 【Conclusion】 Cortical thickness in A4hf (face-head) region can more objectively reflect UMN signs of region bulbar. In addition to age of onset and delayed time of diagnosis, bulbar subgroup score and cortical thickness of face-head region are also independent influencing factors, and cortical thinning in face-head region is a protective factor for survival of ALS patients.

【Objective】 The involvement of upper motor neuron (UMN) degeneration is crucial to the diagnosis of amyotrophic lateral sclerosis (ALS). This study aimed to determine objective and sensitive UMN degeneration markers for an accurate and early diagnosis. 【Methods】 A total of 108 ALS patients and 90 age- and gender-matched control subjects were recruited from ALS Clinic of The First Affiliated Hospital of Xi’an Jiaotong University. The motor homunculus cortex thickness data in MRI were collected from all the participants. The clinical characteristics and UMN clinical examination of bulbar, cervical, thoracic and lumbosacral regions were collected from the ALS patients. 【Results】 Cortical thickness was significantly thinner in the ALS group than in the control group in bilateral head-face-bulbar and upper-limb areas (P<0.05). The cortical thickness of the global UMN positive group was significantly thinner than that of control groups in bilateral head-face-bulbar and upper-limb areas (P<0.05). The cortical thickness of the UMN positive group in the corresponding region was significantly thinner than that of control groups in bilateral head-face-bulbar and upper-limb areas (P<0.05). 【Conclusion】 The thinning of the motor homunculus cortex can be used as an objective marker of UMN involvement in ALS patients in clinical practice.