Application of next-generation sequencing in the molecular diagnosis of Duchenne muscular dystrophy / 中国当代儿科杂志

The purpose of this study is to analyze the family's clinical data of 22 children who were given an intended clinical diagnosis of Duchenne muscular dystrophy (DMD), and to explore the clinical value of next-generation sequencing (NGS) in the molecular diagnosis of DMD. The probands were simultaneously tested by NGS for a gene panel associated with hereditary neuromuscular disease and multiplex ligation-dependent probe amplification (MLPA) for the Dystrophin gene. The exon deletion/repetition mutations of the Dystrophin gene determined by both methods were compared and the point mutations of the Dystrophin gene were verified by Sanger sequencing. Dystrophin gene mutations were found in all the 22 probands, including 14 exon deletion/repetition mutations and 8 point mutations/minor variations. The results of MLPA detection were consistent with those of NGS. The results of Sanger sequencing showed that the point mutations and minor variations determined by NGS were correct. One missense mutation (c.6290G>T), 1 nonsense mutation (c.3487C>T) and 4 minor deletion-induced frameshift mutations (c.1208delG, c.7497_7506delGGTGGGTGAC, c.9421_9422delAA and c.8910_8913delTCTC) had not been reported in the Human Gene Mutation Database, and thus were considered as novel mutations of the Dystrophin gene. The results of this study showed that NGS can detect variations in the Dystrophin gene, including exon deletion/repetition, point mutation, minor deletion and intron mutation. Therefore, NGS is of certain clinical value in the molecular diagnosis of DMD and is worthy of recommendation.

Preparation and quality standard of standard decoction of Scrophulariae Radix pieces / 中国中药杂志

The standard decoction of Chinese herbal decoction pieces is a standard reference substance to measure whether different dosage forms of Chinese medicine are basically consistent with those of clinical decoction,and provides new ideas and methods for effectively solving the problems of uneven quality in Chinese medicine dispensing granules. In this study,a systematic method for evaluating the quality of Scrophulariae Radix decoction was established from the perspective of " standard decoction",providing reference for the quality control of the Scrophulariae Radix dispensing granules. 15 batches of Scrophulariae Radix decoction pieces from different origins were collected,and 15 batches of standard decoctions were prepared according to the standardized process with water as solvent.Harpagide and harpagoside were used as quantitative detection indicators to determine the content,calculate the transfer rates and determine the extraction rate. The high performance liquid chromatography( HPLC) was used to establish a standard decoction fingerprint analysis method. The results showed that the transfer rates of harpagide and harpagoside in 15 batches of Scrophulariae Radix pieces standard decoction were( 70. 84±13. 39) % and( 48. 56±6. 40) % respectively; the extraction rate was( 57. 47±5. 89) %. Nine peaks were identified in the HPLC fingerprint,and the similarity was higher than 0. 97 between the fingerprints of 15 batches of standard decoction and the control fingerprint. In this study,the preparation process of standard decoction of Scrophulariae Radix pieces conformed to the traditional decoction preparation method. The sources of the samples were representative,and the established fingerprint method was stable and feasible,which can provide reference for the preparation and quality control of Scrophulariae Radix dispensing granules.

Change in serum intestinal fatty acid binding protein and its significance in children with pneumonia and gastrointestinal injury / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To study the change in serum intestinal fatty acid binding protein (IFABP) in children with pneumonia and its correlation with gastrointestinal injury.</p><p><b>METHODS</b>A total of 82 children with community-acquired pneumonia who were treated from January to October, 2015 were enrolled, among whom 34 had mild pneumonia and 48 had severe pneumonia. According to pediatric critical illness score (PCIS), the children with severe pneumonia were further divided into non-critical group (25 patients) and critical group (23 patients). Thirty healthy children who underwent physical examination at outpatient service were enrolled as the control group. ELISA was used to measure serum IFABP level, and the acute gastrointestinal injury (AGI) grade was determined for children with severe pneumonia. Serum IFABP level was compared between groups, and the correlations of IFABP with AGI grade and PCIS were analyzed.</p><p><b>RESULTS</b>The severe pneumonia group showed a significantly higher serum IFABP level than the control group and the mild pneumonia group (P<0.01), and the mild pneumonia group also showed a significantly higher serum IFABP level than the control group (P<0.01). The critical group showed a significantly higher serum IFABP level than the non-critical group (P<0.01). The patients with grade I-IV AGI had significantly higher serum IFABP levels than the control group (P<0.01), and the serum IFABP level increased significantly with the increasing AGI grade (P<0.01). Serum IFABP level was positively correlated with AGI grade (P<0.01) but negatively correlated with PCIS (P<0.01).</p><p><b>CONCLUSIONS</b>Children with pneumonia experience an increased serum IFABP level which can be used as a sensitive indicator for the early diagnosis of gastrointestinal injury and the evaluation of conditions in children with pneumonia.</p>

The application of C- arm CT imaging technique in evaluating the efficacy of TACE for hepatocellular carcinoma / 介入放射学杂志

Objective To investigate the application of C- arm CT imaging technique in evaluating the efficacy of transarterial chemoembolization(TACE) for hepatocellular carcinoma(HCC). Methods During the period from Sep. 2012 to Mar. 2013 at authors’ hospital, C- arm CT scanning was employed during the performance of TACE in 80 patients with HCC. The residual active tumor lesions, Lipiodol deposition and the embolization of the feeding arteries after TACE therapy were assessed by C- arm CT plain scan images and the images of early artery phase and parenchymal phase, as well as the post- processing images. The efficacy of TACE was thus evaluated. Results A total of 139 hepatic tumors were detected in 80 patients by C- arm CT imaging. C- arm CT scanning performed immediately after TACE showed that satisfactory result was obtained in 128 lesions of 75 patients(128/139, 92.9%). Fewer, medium and more residual active tumors were seen in 78, 29 and 21 lesions respectively, while dense, moderate and thin Lipiodol deposition was seen in 64, 39 and 25 lesions respectively. After TACE therapy obvious decrease in blood supply was demonstrated in 101 lesions, while no obvious decrease in blood supply was seen in 27 lesions. Conclusion C- arm CT scanning after TACE for patients with HCC can conveniently, accurately and comprehensively reveal the residual active tumors, Lipiodol deposition and embolization status of feeding arteries. Therefore, this technique should be regarded as an important means to evaluate the efficacy of TACE.

TACE combined with sorafenib for inoperable hepatocellular carcinoma：analysis of treatment interval / 介入放射学杂志

Objective To investigate the clinical efficacy of transarterial chemoembolization (TACE) combined with sorafenib for the treatment of inoperable hepatocellular carcinoma (HCC), and to discuss the influence of treatment interval on the survival time. Methods During the period from July 2008 to May 2011 at authors’ hospital, a total of 50 patients with inoperable HCC were treated with TACE together with sorafenib. The treatment intervals between each TACE procedure were recorded. The results were analyzed. Results Up to Dec. 31, 2011, the median follow-up time of the 50 patients was 310 days. The mean interval between TACE treatments was 69 days before the combination treatment was employed , while the mean interval was 112 days after the combination treatment started , and the longest interval was 648 days. Conclusion Combination treatment TACE with sorafenib can remarkably prolong the treatment interval in patients with inoperable HCC, thus the patient can get more survival benefits.

Efficacy and safety of sodium valproate in a higher dose for treating nocturnal and early-morning seizures / 中华实用儿科临床杂志

Objective To explore the efficacy and safety of sodium valproate in a higher dose in the evening for treating nocturnal and early-morning seizures.Methods A total of 69 newly diagnosed pediatric patients with nocturnal or early-morning seizures were enrolled.They were randomly distributedinto experimental group (35 cases) and control group (34 cases) and treated with sodium valproate tablets.The initial dose was little.It was gradually increased to the effective maintenance dose.With sodium valproate given twice a day,the post meridiem(PM) dose was twice the ante meridiem(AM) dose in the experimental group,while the PM/AM dose was equal in the control group.All patients were at least been followed up for 6 months.Results In the experimental group,28 cases were seizure free (80.0％),and the total effective rate was 85.7％.In the control group,20 cases were seizure free (58.8％),and the total effective rate was 64.7％.The difference in the total effective rate between the 2 groups was significant (P ＜ 0.05).No severe adverse effect was found among all patients.The incidence of daytime sleepiness (0/35 cases) in the experimental group was lower than that in the control group (2/34 cases).Conclusions A higher dose of sodium valproate in the evening for nocturnal and early-morning seizures led to better seizure control,better nocturnal sleep,less daytime somnolence,and the side effects are slight.

Changes of soluble triggering receptor expressed on myeloid cells-1 and lactate in children with purulent meningitis / 中华实用儿科临床杂志

Objective To discuss the diagnosis significance of soluble triggering receptor expressed on myeloid cells-1 (STREM-1) and lactate in children with purulent meningitis,and to investigate the changes of STREM-1,lactate in cerebrospinal fluid(CSF) of purulent meningitis before and after treatment.Methods Dry chemical method and enzyme linked immunosorbent assay(ELISA) were used to measure STREM-1 and lactate levels in CSF of purulent meningitis group (24 cases),viral meningitis group (27 cases),CSF normal group (25 cases) and purulent meningitis after treatment group(22 cases).Results 1.STREM-1 and lactate levels in CSF were higher in patients with purulent meningitis than in those with viral meningitis and CSF normal group(all P ＜ 0.05).2.STREM-1 and lactate levels in CSF were higher in patients with purulent meningitis before treatment than those after treatment(all P ＜ 0.05).3.The area under the curve(AUC) of STREM-1 in CSF was 0.891,and at a cutoff level of 27.86 ng/L STREM-1 yielded a sensitivity of 80.8％ and specificity of 75.0％ ;the AUC of CSF lactate was 0.940,and at a cutoff level of 1.75 mmol/ L lactate yielded a sensitivity of 90.4％ and specificity of 83.3％.Conclusions 1.STREM-1 and lactate were associated with bacterial infection,they have considerable diagnostic values in purulent meningitis.2.STREM-1 and lactate maybe worthless in differential diagnosis of purulent meningitis when treated by effective antibiotics.3.The decline of STREM-1 and lactate in CSF prompts the control of infection and good prognosis.

Relationship of RhoA signaling activity with ezrin expression and its significance in the prognosis for breast cancer patients / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>We have recently reported that RhoA may regulate the invasion and metastasis of breast cancer cells as an upstream signal of ezrin in vitro. In this study, we examined the relationship of RhoA signaling activity with ezrin expression in breast cancer and its prognostic significance in patients with breast cancer.</p><p><b>METHODS</b>Paraffin tumor sections of breast cancer were collected retrospectively from 487 patients diagnosed between 2001 and 2004. Immunohistochemical methods were used to detect the expression of RhoA, phosphorylated (activated) RhoA, and ezrin.</p><p><b>RESULTS</b>Ezrin overexpression was detectable in 15.2% of 487 invasive breast cancers. The majority (85.1%) of ezrin-overexpressing tumors coexpressed phosphorylated RhoA; 78.8% of tumors with phosphorylated RhoA cooverexpressed ezrin. Patients whose cancers showed overexpression of ezrin or expression of phosphorylated RhoA had shorter survival rates.</p><p><b>CONCLUSIONS</b>RhoA activation is important in human breast cancer due to its upregulation of ezrin; thus, agents that target phosphorylated RhoA may be useful in the treatment of tumors with ezrin overexpression.</p>

Expression of thyroid stimulating hormone receptor in differentiated thyroid carcinoma and its clinical significance / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To explore the expression of thyroid stimulating hormone (TSH) receptor in differentiated thyroid carcinoma and its clinical significance.</p><p><b>METHODS</b>Seventy-four patients with differentiated thyroid carcinoma treated in our department from January 2009 to January 2011 were selected as the observation group, and 28 patients with nodular goiter were selected as the control group. Expression of TSH receptor in the two groups were detected by immunohistochemistry.</p><p><b>RESULTS</b>The positive rate of TSH receptor expression in the observation group was 55.4 (41/74), significantly lower than that of the control group (89.3%, 25/28), with a significant difference between the two groups (χ(2) = 10.21, P < 0.05). In the observation group, the positive rate of TSH receptor expression was 75.9% (22/29) in the stage I patients, 47.8% (11/23) in the stage II patients, 38.9%6 (7/18) in the stage III patients, and 25.0% (1/4) in the stage IV patients. Along with the increase of TNM staging, the positive rate of TSH receptor expression was decreased gradually, with a significant difference between them (χ(2) = 8.93, P < 0.05). The positive rate of TSH receptor expression was 53.8% (14/26) in the lymph node metastasis positive group and 56.3% (27/48) in the lymph node metastasis negative groups, with a non-significant difference between them (χ(2) = 0.04, P > 0.05).</p><p><b>CONCLUSIONS</b>Expression of TSH receptors in the patients with differentiated thyroid carcinoma is quite low, and along with the increase of TNM staging, its positive rate is decreasing gradually. Testing the expression of TSH receptor may provide a basis for TSH suppression therapy after thyroid cancer surgery. This TSH suppression therapy should be personalized in order to reduce the side effects and improve their quality of life.</p>

A comparison of the mRECIST and RECIST criteria in the efficacy assessment of TACE combined with sorafenib in the treatment of unresectable hepatocellular carcinoma / 中华肝胆外科杂志

Objective To evaluate the value of the mRECIST criteria in assessing the efficacy of transcatheter arterial chemoembolization(TACE) combined with sorafenib in the treatment of hepatocellular carcinoma (HCC).Methods A total of 35 patients who were treated with a combination of TACE and sorafenib for unresectable hepatocellular carcinoma fulfilled the mRECIST and RECIST criteria in our hospital from June 2011 to November 2012.Enhanced CT and/or enhanced MRI were used before (baseline) and after (3 month reexamination) combination treatment in our hospital.The mRECIST and RECIST criteria were used to evaluate the efficacy,and these efficacy assessments were compared.Results In the RECIST criteria,complete remission (CR) was 0％,partial remission (PR) was 2.9％,stable disease (SD) was 85.7％％,and progressive disease (PD) was 11.4％％.In the mRECIST criteria,CR was 8.6％,PR was 51.4％,SD was 34.3％,and PD was 5.7％.For the RECIST criteria,the objective response rate (CR+-PR) was 2.9％,the disease control rate (CR+PR+SD) was 88.6％,and the disease progression rate was 11.4％.For the mRECIST criteria,the objective criteria was 60％,the disease control rate was 94.3％,and the disease progression rate was 5.7 ％.The difference between the efficacy assessment results of mRECIST and RECIST was statisti cally significant(P＜0.001).Conclusion The mRECIST criteria can evaluate the efficacy of target le sions based on viable tumors,which is more adaptive to TACE and targeted drugs with new mecha nisms.

Effect of diubiquitin gene silencing by small interfering RNA on proliferation and invasion of tongue carcinoma Tca8113 cells / 中华口腔医学杂志

<p><b>OBJECTIVE</b>To study the effect of diubiquitin (FAT10) down-regulation by small interfering RNA-mediated RNA interference (RNAi) on the biological features of tongue carcinoma cell line Tca8113.</p><p><b>METHODS</b>Tca8113 cells were transfected with synthetic small interfering RNA (siRNA) targeting FAT10. Expression of FAT10 mRNA and protein were respectively measured by reverse transcription polymerase chain reaction (RT-PCR) and Western blotting, transfection efficiencies were monitored. The distribution of cell cycle phases was determined using flow cytometry. The proliferative and invasive ability of Tca8113 cells in vitro was evaluated by the colony-forming unit assay and Transwell migration assay respectively.</p><p><b>RESULTS</b>Both FAT10 mRNA and protein expression were significantly decreased in the experimental group (pU-FAT10-siRNA: mRAN 0.36 ± 0.03, Protein 0.39 ± 0.04) compared with controls (</p><p><b>CONTROL</b>mRNA 0.95 ± 0.05, Protein 0.69 ± 0.05; pU-siRNA: mRNA 0.92 ± 0.07, Protein 0.64 ± 0.05) (P < 0.05). The cell cycle was arrested in the G(1) phase [pU-FAT10-siRNA: (72.45 ± 5.81)%,</p><p><b>CONTROL</b>(45.95 ± 3.80)%, pU-siRNA: (45.95 ± 3.80)%]. The proliferation and invasiveness of treated Tca8113 cells were inhibited in vitro (pU-FAT10-siRNA: 41.83 ± 8.19, CONTROL: 317.21 ± 69.48, pU-siRNA: 339.36 ± 73.84).</p><p><b>CONCLUSIONS</b>Delivery of siRNA targeting FAT10 seems efficient in down-regulating FAT10 expression and diminishing the growth, proliferation and invasiveness of Tca8113 cells, suggesting that siRNA-based strategy targeting FAT10 may lay a foundation for the clinical management of tongue carcinoma.</p>

Evaluation of the efficacy of bronchial arterial infusion chemotherapy for the treatment of central non-small cell lung cancer / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To evaluate the long-term efficacy of bronchial arterial infusion (BAI) chemotherapy in the treatment of centeral non-small cell lung cancer.</p><p><b>METHODS</b>Fifty-eight patients with central non-small-cell lung cancer, who were assessed as difficult operable or non-operable by imaging examination, received BAI of cisplatin, epirubicin and mitomycin alone or in combination. It includes 51 cases of squamous cell carcinoma, 6 cases of adenocarcinoma and 1 case of adenosquamous carcinoma. The cinical stage before BAI wasIIb in 3 cases, IIIa in 26 cases and IIIb in 29 cases. Long term follow-up was conducted and the results were statistically analyzed.</p><p><b>RESULTS</b>The total effective rate of BAI was 43.1%. The mediam survival (MS) of all 58 patients was 29.1 months. 31 patients after BAI became operable and were resected, had a median survival of 65.2 months. 27 patients after BAI were not resected and had a MS of 15.9 months. There was a significant difference between the patients who had been resected and not. The MS of IIIa stage patients was 39.0 months, and IIIb stage 20.4 months.</p><p><b>CONCLUSION</b>Bronchial arterial infusion chemotherapy is a better choice with a definite efficacy for treatment of center-based NSCLC patients, estimated as difficult operable but without distant metastasis.</p>

Ten-year changes in pathogen, antimicrobial susceptibility and clinical feature of children with bacterial meningitis / 中华儿科杂志

<p><b>OBJECTIVE</b>Despite progress in antibiotic therapy and intensive care, childhood bacterial meningitis (BM) remains a devastating disease. We conducted this study to investigate the changes in clinical characteristics, the etiologic agents and antimicrobial susceptibility of BM during the past 10 years in children under 14 years of age.</p><p><b>METHODS</b>These 126 patients were divided into two groups according to their date of admission. Group 1 included 64 patients admitted from January 1998 to December 2002, and group 2 included 62 cases admitted from January 2003 to December 2007. All pediatric medical charts of them were reviewed.</p><p><b>RESULTS</b>The predominant isolated bacteria from CSF were coagulase-negative staphylococcus (17/62, 27.4%) and Escherichia coli (9/62, 14.5%) in group 2. The resistance rate of staphylococcus against oxacillin (MRS) was 68.4% (13/19) in group 2, significantly higher than that of group 1 (16.7%, 2/12). Among 126 cases, 42 had seizure attack and 16 had consciousness disturbance, the proportions of them in group 2 (11/62, 17.7%; 4/62, 6.4%) were lower than those in group 1 (31/64, 48.4%; 12/64, 18.8%, P < 0.05). Cases in group 2 survived with complications [13/62 (21.0%)] and sequelae [11/62 (17.7%)] were lower than those in group 1 (24/64, 37.5%, 23/64, 35.9%, P < 0.05), but the rate of empirical therapy modification in group 2 (21/62, 33.9%) was higher than that in group 1 (7/64, 10.9%, P < 0.01).</p><p><b>CONCLUSION</b>The predominant bacteria in children with BM are staphylococcus and Escherichia coli in recent years. The antibiotic resistance rate of bacteria has been higher year after year. The clinical patterns of pediatric BM have changed with a decrease in clinically serious cases, complications and sequelae, but an increase in modification of empirical therapy.</p>

Hydroa vacciniforme-like cutaneous T cell lymphoma: a case report and literature review / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To study the clinical features, diagnosis and therapy of hydroa vacciniforme-like cutaneous T cell lymphoma.</p><p><b>METHODS</b>The clinical presentations and the findings of laboratory examinations and skin biopsy of affected tissue in a child with hydroa vacciniforme-like cutaneous T cell lymphoma were retrospectively reviewed.</p><p><b>RESULTS</b>The child manifested as rash, fever and lymph node intumesce. Rash was pantomorphia, including edematous erythema, vesicles, crusts, necrosis and depressed scar, and it was mild in winter and severe in summer, mainly involving in the face and extremities. Epstein-Barre virus (EBV)-IgM was positive. Histopathological findings revealed focal lymphocyte invasion in subcutaneous panniculus adiposus, mainly surrounding the blood vessels. Immunohistochemistry showed CD3 (+), CD43 (+), CD20 (-), pax-5 (-), TIA (+), CD5 (+), CD8 (+), Granmye (+) and CD4 (-). The clinical symptoms were improved after glucocorticoid treatment in this child.</p><p><b>CONCLUSIONS</b>Hydroa vacciniforme-like cutaneous T cell lymphoma has special clinical manifestations. This disorder may be definitely diagnosed by skin biopsy of affected tissue and immunohistochemistry assay. Glucocorticoid treatment is effective. EBV infection may be related to the development of this disorder.</p>

Efficacy of transarterial interventional therapy in the treatment of metastatic liver cancer / 中华消化外科杂志

Objective To evaluate the efficacy of transarterial interventional therapy (TAIT) in treating patients with metastatic liver cancer, and to investigate the factors influencing the prognosis of patients. Methods From January 1997 to June 2000, 470 patients with metastatic liver cancer had undergone TAIT 1231 times in the Cancer Hospital of the Chinese Academy of Medical Sciences. The clinical data of the patients were retrospectively analyzed. The short-term and long-term efficacy and the side effect of TAIT were assessed. The potential factors influencing the prognosis of the patients were determined by Cox regression analysis. Results Complete remission was observed in 94 patients, and partial remission in 143. The total effective rate was 50.4% (237/470). The median survival time was 13.5 months. The O. 5-, 1-, 2-, 3-, 5-year survival rates were 86.4%, 66. 8%, 35.6%, 16.9%, 7.3%, respectively. No severe complication occurred. The factors influencing the prognosis of the patients were: the resection of the primary tumor, blood supply of the tumor, multiple metastases of liver cancer, thrombus in the portal vein, adjuvant chemotherapy after TAIT, tumor originated from breast cancer, tumors invading multiple lobes, concurrent metastasis in other sites (X2= 17. 322, 12. 593, 8.721, 8.573, 8.492, 7. 838, 5. 623, 5. 463, P < 0.05). Conclusions TAIT is an effective palliative therapy for metastatic liver cancer which cannot be resected. The factors mentioned above influence the prognosis of patients after TAIT.

Evaluation of efficacy and influence factors of transarterial interventional therapy in patients with liver metastasis from malignancy of alimentary tract / 中华肿瘤杂志

<p><b>OBJECTIVE</b>To evaluate the efficacy and prognostic factors of transarterial interventional therapy (TAIT) in patient with liver metastasis from malignancy of the alimentary tract.</p><p><b>METHODS</b>266 patients with unresectable liver metastases from malignancy of the alimentary tract received totally 754 sessions of transarterial interventional therapy. Cox regression was used in the proportional hazard analysis.</p><p><b>RESULTS</b>The overall response rate of TAIT was 45.4%, The median survival time (MS) was 14.3 months in this series. The 0.5-, 1-, 2-, 3-, 5-year cumulative survival rate (CSR) was 83.1%, 56.8%, 17.7%, 9.3% and 1.5% , respectively. No severe adverse reaction was observed except nausea, vomiting and mild fever as well as pain in the hepatic area. It was found that portal vein tumor thrombosis (PVTT), the blood supply of tumor, metastasis from esophageal carcinoma, the number of metastasis, multi-lobe involvement, resection nature of primary tumor were independent factors affecting survival.</p><p><b>CONCLUSION</b>Transarterial interventional therapy is effective for treatment of liver metastasis from malignancy of the alimentary tract. Portal vein tumor thrombosis, metastasis from esophageal carcinoma, multiple metastatic lesions, multi-lobe involvement are poor prognostic factors, while complete resection of the primary tumor and rich blood supply of metastatic lesion are good independent prognostic factors.</p>

Sequence analysis of the complete genome of bocavirus WLL-1 / 病毒学报

Human bocavirus, which was firstly discovered in 2005, is a new human parvovirus associated with lower respiratory tract infection in children. In this study, a human bocavirus, named WLL-1 isolate, was identified in Wenlin County, Zhejiang Province. The genome of bocavirus WLL-1 has been sequenced and analyzed. Phylogenetic analyses showed that WLL-1 shares 99% homology with other bocaviruses recently reported, but also has some special variations.

Effects of different concentration extract from shenghua decoction on contractile activity of the uterine smooth muscle isolated from normal, estrogen-treated and postpartum mice / 中国中药杂志

<p><b>OBJECTIVE</b>To investigate the effects of different concentration extract from Shenghua decoction on contractile activity of the uterine smooth muscle isolated from normal, estrogen-treated and postpartum mice.</p><p><b>METHOD</b>Medlab/4 s vital signal recorder was used to measure the effects of extract from Shenghua decoction (3-12 mg x mL(-1)) on contractile amplitude and frequency of the isolated uterus from normal, estrogen-treated and postpartum mice.</p><p><b>RESULT</b>Shenghua decoction extract (3-12 mg x mL(-1)) significantly decreased the contractile activity of the mouse isolated uterus in normal non-pregnancy and postpartum, but significantly increased that of the mouse isolated uterus treated with estrogen, and didn't show significant concentration-response relationship.</p><p><b>CONCLUSION</b>The effects of Shenghua decoction extract on contractile activity of mouse-isolated uterus treated with estrogen cannot represent the pharmacological effects on that of in normal non-pregnancy and postpartum uterus.</p>

Effect of Ethyl Pyruvate on the Level of High Mobility Group Box 1 in Brain Injury of Infant Rats Induced by Lipopolysaccharide and Its Significance / 实用儿科临床杂志

Objective To investigate the influence of Ethyl pyruvate(EP) on the level of high mobility group box 1 (HMGB1) in brain injury of infant rats induced by lipopolysaccharide (LPS) and its significance.Methods Two hundred and forty normal healthy 1-month-old Spragne-Dawley (SD) rats were randomly divided into 3 groups:9 g/L sodium chloride (NS) group(n=80),LPS group (n=80),and EP group (n=80).LPS (1 mg/kg) was injected via internal carotid.In EP group,after injecting LPS,each rat was immediately administrated 4 mL EP(40 mg/kg) intraperitoneally; in control group,4 mL Ringer's solution was given instead of EP.Rats were decapitated at 6,12,24,48 and 72 h following drug injection.The evan's blue (EB) content of brain tissues was meteraged by the formamide methods.Immunohistochemistry technology was used to detect the expression of HMGB1,neuron specific enolase(NSE) and glial fibrillary acidic protein(GFAP) protein,and reverse transcribe polymerase chain reaction technology was applied to study the expression level of HMGB1 mRNA in brain tissue.Meanwhile,the pathological changes of brain tissues were observed under the light microscope.Results Six hours after LPS was given,brain EB content,the levels of NSE,GFAP protein started to rise,reaching the peak at 24 h,and still higher than those in control group at 48 h and 72 h.The expression pattern of HMGB1 protein and mRNA in brain tissue was consistent with the severity of brain injury,increased at 6 h after LPS was given and reached the peak at 24 h,still higher than those in control group at 48 h and 72 h.Positive correlation was found among HMGB1 protein,HMGB1 mRNA and EB content,NSE protein,GFAP protein,respectively.In EP group,the levels of HMGB1 protein and mRNA,the levels of brain EB content,NSE,GFAP protein were found,positive correlation was still gotten between HMGB1 protein,EB content and NSE,GFAP protein,HMGB1 mRNA in LPS group and EP group.Conclusion EP has neuroprotective effect on brain injury induced by LPS,which may be relevant to decreasing of the expression of HMGB1 and suppressing inflammation action.

Inhibitory Effect of Melatonin on Expression of Glial Fibrillary Acidic Protein in Infant Rats with Brain Injury Induced by Lipopolysaccharide / 实用儿科临床杂志

Objective To explore the inhibitory effect of melatonin(MT) on expression of glial fibrillary acidic protein in infant rats with brain injury induced by lipopolysaccharide(LPS).Methods One hundred and sixty Spragne-Dawley rats(1 month) were randomly divided into 4 groups:9 g/L saline group(NS group),LPS group,MT protective A group(MT plus LPS,MT was given 15 minutes earlier),and MT protective B group(MT plus LPS,MT was given immediately).Forty rats in each group,then every group was subdivided into 2 subgroups according to observe time point at 24 h and 48 h with 20 rats,respectively.Half of them in all subgroups were not injected Evans blue(EB).Rats were sacrificed at 2 time points to take brain tissue samples,respectively.EB content of brain tissue was meteraged by the formamide methods.Immunohistochemistry technology and computer assisted image analysis system methods were applied to observe the expression of the positive apoptosis cell of brain tissue.Results Both EB content and the expression of GFAP showed significant difference between LPS group and NS group(Pa0.05).Conclusions LPS can induce the expression of GFAP in infectious brain injury of rats induced by LPS,and MT can inhibit the expression of GFAP;MT may play a role in dealing with infectious brain injury.