Magnetic resonance imaging (MRI) is now an important diagnostic technology in determining brain structure injury. It has important meaning for determining the pathological type of CP, MRI findings in CP showed a good correlation with CP type, gestational age, etiology and injury time. In this article, the authors reviewed the advance in research on relationship between changes in MRI and gestational age, etiology and injury time.

Brain ; pathology ; Caudate Nucleus ; pathology ; Child, Preschool ; Humans ; Huntingtin Protein ; Huntington Disease ; diagnosis ; genetics ; pathology ; Magnetic Resonance Imaging ; Male ; Nerve Tissue Proteins ; genetics ; Pedigree ; Trinucleotide Repeats ; genetics

Adult ; Aged ; Aged, 80 and over ; Female ; Humans ; Immunoglobulin D ; Male ; Middle Aged ; Multiple Myeloma ; classification ; pathology ; Retrospective Studies

The treatment effect of primary and metastatic hepatic carcinoma after local intervention?al therapy is closely related to the prognosis of patients. Traditional imaging modalities such as CT, MRI and ultrasound can only provide anatomical information in monitoring treatment response. In recent years, PET/CT has been widely used in monitoring treatment response for tumors. Many studies have compared the effi?cacy of PET/CT with that of traditional imaging modalities in monitoring the response of primary and meta?static hepatic carcinoma after interventional therapy. This review summarizes recent progress in this field.

Objective To synthesize soybean isoflavones, and their 7-alkaline analogues and to evaluate their uterotrophic activities and anti-uterotrophic activities preliminarily. Methods The target molecules were synthesized by multi-step from resorcinol and p-substituted phenylacetic acid as the starting material. Their uterotrophic activities and anti-uterotrophic activities were evaluated by female mouse at the concentration of 1.1?10 -2 ?mol/ml and 1.85?10 -3 ?mol/ml. Results Twenty-two compounds were synthesized, among which 4 intermediates and 12 isoflavones are new compounds. Conclusion All the target molecules except for 6a show weak uterotrophic activities and high anti-uterotrophic activities.

The occurrence of epilepstic seizures in patients with cerebral palsy (CP) remains a serious event and is very disruptive for children who already suffered from orther disabilties. Data from population-based studies or neurodevelopmental clinic studies showed that 8%～62% of patients with CP suffer from epilepsy. The incidence is highest in spastic tetraplegia and hemiplegia. Half of the patients were onset within the first year of age. Children with tetraplegia CP tended to have an earlier onset of epilepsy than chlidren with other CP types. Partial seizures were the most common seizure types, followed by infantile spasms and Lennox-Gastaut syndrome. Low birth weight, neonatal seizures, family history of epilepsy, lower intelligence and grey matter damage were found to be related to significantly increased risk of epilepsy. Epilepsy in children wih CP usually had poor outcome, half of them were intractable and needed polytherapy. Only 37%～65.2% of patients became seizure-free.

Objective To investigate the technical feasibility and oncological safety of EPMR for early esophageal cancer and precancerous lesions. Methods Clinicopathological data, procedure quality and complications of 70 patients with early esophageal cancer or precancerous lesions were retrospectively ana?lysed. The technical safety and feasibility were assessed, and the complications were investigated through postoperative surveillance. The results were compared with published data from two high?quality meta?analysis studies on ESD. Results In a total of 70 patients who underwent EPMR, 35?7%( 25/70) were diagnosed as having early esophageal cancer and 64?3%( 45/70) atypical hyperplasia. And tumor size greater than 2 cm was 78?6%(55/70). The mean EPMR time was(28?31±9?49) minutes. The R0 resection rate of EPMR was 88?6%(62/70) and no perforation occurred. The bleeding rate was 21?4%(15/70). The esoph?ageal stricture rate was 1?4%( 1/70) . The recurrence rate was 2?9%( 2/70) . Compared with published ESD data from the two studies, EPMR showed shorter procedure time, lower curative rate and lower rates of stric?ture and perforation, but slightly higher rates of bleeding and recurrence. Conclusion Both EPMR and ESD are feasible and effective for early esophageal cancer and precancerous lesions. The curative results of EPMR are similar to ESD, with shorter procedure time, but higher bleeding and recurrence rates.

Adult ; Aged ; Cohort Studies ; Dust ; analysis ; Female ; Humans ; Male ; Manganese ; analysis ; Manganese Poisoning ; diagnosis ; Middle Aged ; Occupational Exposure ; analysis ; Retrospective Studies ; Young Adult

Objective To investigate the relation between the expression of toll receptor-4 (TLR-4) and the increase of blood brain barrier (BBB) permeability in the rats with acute pancreatitis.Methods Male Sprague-Dawley rats were randomly divided into 8 groups:control group;acute edematous pancreatitis (AEP) 2 h,6 h groups;acute necrotizing pancreatitis (ANP) 2 h,6 h,12 h,24 h,48 h groups with 8 rats in each group.The BBB permeability,pathological score of pancreas,TLR-4 expression were determined and the relationships between them were analyzed.Results The BBB permeability in control group;acute edematous pancreatitis (AEP) 2 h,6 h groups;ANP 2 h,6 h,12 h,24 h,48 h groups were 1.55±0.29,1.64±0.17,1.69±0.24,1.89±0.12,2.66±0.32,2.91±0.29,2.89±0.69 and 1.84±0.07,respectively;the pathological scores of pancreas were 0,2.38±0.92,3.13±0.64,8.50±1.07,9.75±0.71,10.25±1.28,11.13±1.25 and 10.13±1.13,respectively;there was no significant difference between AEP groups and control group,while there was significant difference between AEP groups and ANP groups (P＜0.05 orP ＜0.01).BBB permeability was correlated with pancreatic injury ( r = 0.626,P ＜0.01).There was no TLR-4 mRNA and protein expression in the control and AEP group,while they were significantly expressed in ANP groups,and the expression were positively related with BBB permeability ( r =0.208,P = 0.027 ).Conclusions BBB permeability was present in the course of ANP.Activation of TLR-4 signal pathway may be involved in the BBB permeability increase caused by ANP.

OBJECTIVE: To establish an HPLC-MS method for the analysis of the impurity profile of cefotaxime sodium. METHODS: Shimadzu-LCMS-IT-TOF was used with Waters XBridge Shield (RP18, 4.6 mm×250 mm, 5 μm) column. Mobile phase A was 20 mmol·L-1 ammonium acetate (pH adjusted to 6.25)-methanol (92: 8), and mobile phase B was set at 20 mmol·L-1 ammonium acetate-methanol (60: 40) (pH adjusted to 6.25).Gradient elution was performed at a flow rate of 1.0 mL·min-1. ESI source was used.Positive and negative ion scanning was conducted in the range of m/z 150-900.The heating temperature was 200℃, CDL temperature was maintained at 200℃, atomization gas flow rate was 1.5 L·min-1, dry gas pressure was 94.0 kPa, and the post-column diversion ratio was 1: 4.Some related substances in cefotaxime sodium were identified by comparing the retention time in chromatography, [M+H]+ spectrum and MS2 spectrum with those of reference substances, the others which haven't reference substances were deduced or speculated by analyzing the MS2 or MSn fragmentation with the help of a rule summarized from the MS2 fragmentation of cefotaxime sodium and the reference substances of system suitability impurities. RESULTS: Twenty-six related substances were separated and detected in the sample, all of which were identified or deduced. They were cefotaxime sodium isomeric compounds and homologs generated during the production process or degradation products. CONCLUSION: The method can be applied in the identification and qualitative analysis of the related substances of cefotaxime sodium and the quality control and optimization of the synthesis of cefotaxime sodium.