Objective To assess the long efficacy and safety of Lamotrigine(LTG) monotherapy and add-on therapy different types of epileptic seizures in children.Methods According to the classification of the 1981 and 1989 International Union of Antiepileptic for epileptic seizure,a total of 124 cases with epilepsy were included in the study and divided into non-refractory group with 93 cases and refractory group with 31 cases.LTG treatment only or add-on were used.Original drug dosage was not changed and LTG was added slowly and carefully untill the terrible side effect appeared.The average monthly seizure frequency with baseline in the last 3 months was compared and the side effect was observed.Results Total efficiency was 72.6%,control rate was 51.6%.Total efficiency and control rate of the non-refractory group was 81.0% and 61.3%,which was significantly higher than those of refractory group(48.4%,22.6%).Total efficiency and control rate of the combination group with LTG and valproate sodium(VPA) was 78.4% and 54.5%,which was significantly higher than those of the group of LTG only(61.0%,44.0%).Clinical results was different significantly between the course of the observation period within and over 5 years(P

OBJECTIVETo analyze the relationships between smooth-muscle tumors of gastrointestinal (GI) tract and gastrointestinal stromal tumors (GISTs), and the efficacy of surgical management.

METHODSThe clinical and pathological data of 135 cases of GISTs were collected, including cases of leiomyomas/leiomyosarcoma between 1993 and 2003 and GIST between Jan. 2000 and Jul. 2005. The surgical outcomes were analyzed retrospectively.

RESULTS82.1% of former leiomyomas/leiomyosarcomas was corrected to GISTs. Overall 5-year survival rate was 79.7%. Univariate analysis revealed preoperative metastasis, tumor size, mitotic index, and postoperative metastasis or recurrence were correlated with overall survival in patients with completed resection. Multivariate analysis showed that only postoperative metastasis or recurrence were the indicators of poor prognosis, but without statistical significance (P=0.064). However, multivariate analysis for disease-free survival showed that preoperative metastasis and mitotic index were two independent predictors of poor prognosis (P=0.001 and P<0.001).

CONCLUSIONSMost former leiomyomas/leiomyosarcomas of GI tract should be corrected to the diagnosis of GISTs. Complete surgical resection is the choice of treatment for GISTs. Preoperative metastasis and mitotic index are two independent predictors of poor prognosis.

Female ; Gastrointestinal Stromal Tumors ; diagnosis ; surgery ; Humans ; Male ; Prognosis ; Survival Rate

Objective To explore whether the degree of 99Tcm-methoxyisobutylisonitrile (MIBI) uptake in non-small cell lung cancer (NSCLC) could be correlated with the treatment response to three-dimensional conformal radiotherapy.Methods A total of 102 patients with NSCLC were studied with 99Tcm-MIBI SPECT before radiotherapy.The patients were classified by a follow-up CT as responders (complete or partial remission) and non-responders (stable or progressive disease).After intravenous administration of 740 MBq 99Tcm-MIBI, SPECT imaging at 10-30 min (early) and 2-3 h (delayed) were performed.Region of interest (ROI) was placed over the tumors and contralateral normal lung tissue.The uptake ratio of tumor to contralateral normal lung (T/N) was obtained from both early (ER) and delayed (DR) SPECT images.The retention index (RI) was measured as:RI = (DR - ER)/ER×100%.Statistical analysis was performed by two independent-sample t-test and Mann-Whitney U test using software SPSS 13.0.Results 99Tcm-MIBI uptake was significantly higher in responders than in non-responders:2.36 ±0.17 vs 1.82 ±0.14 (ER) and 2.48 ± 0.20 vs 1.94 ± 0.16 (DR), respectively (t = - 13.1,- 12.7, both P＜ 0.05).The median RI in the responders group was also significantly higher than that in the non-responders group (6.60% vs 5.13%, z = - 6.83, P ＜ 0.05).Conclusion ER, DR and RI of 99Tcm-MIBI SPECT might be useful to estimate the treatment response to three-dimensional conformal radiotherapy in patients with NSCLC.

OBJECTIVETo examine the expression of matrix metalloproteinases (MMP)-2, -9, tissue inhibitor of matrix metalloproteinase (TIMP)-1 and hs-CRP, and their relationship with coronary artery in children with Kawasaki disease.

METHODSOne hundred and fifty-one children with Kawasaki disease (111 cases with coronary artery damage and 40 cases without) and 60 healthy children were enrolled. The expression of MMP-2, MMP-9 and TIMP-1 was detected using ELISA, and the hs-CRP concentration was measured using the endpoint nephelometry.

RESULTSThere were significant differences in the level of MMP-2, MMP-9 and hs-CRP between the patients with or without coronary artery damage and the healthy children (p<0.05). The levels of MMP-2, MMP-9 and hs-CRP were the highest in the cardiovascular damage group (p<0.05). There were positive correlations between MMP-2, MMP-9 and TIMP-1 in children with Kawasaki disease.

CONCLUSIONSMMP-2, MMP-9, TIMP-1 and hs-CRP may play important roles in the development of Kawasaki disease. The combined measurement of MMP-2, MMP-9 and hs-CRP may be useful in the evaluation of the severity in children with Kawasaki disease.

C-Reactive Protein ; analysis ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Matrix Metalloproteinase 2 ; blood ; Matrix Metalloproteinase 9 ; blood ; Mucocutaneous Lymph Node Syndrome ; blood ; etiology ; Tissue Inhibitor of Metalloproteinase-1 ; blood

COVID-19 epidemic continues to spread around the world till these days, and it is urgent to develop more safe and effective new drugs. Due to the limited P3 biosafety laboratories for directly screening inhibitors of virulent viruses with high infectivity, it is necessary to develop rapid and efficient screening methods for viral proteases and other related targets. The main protease (M^pro), which plays a key role in the replication cycle of SARS-CoV-2, is highly conserved and has no homologous proteases in humans, making it an ideal target for drug development. From two different levels, namely, molecular level and cellular level, this paper summarizes the reported screening methods of SARS-CoV-2 M^pro inhibitors through a variety of representative examples, expecting to provide references for further development of SARS-CoV-2 M^pro inhibitors.

As a common protease with high similarity among coronavirus species, the main protease (M^pro) of SARS-CoV-2 is responsible for the catalytic hydrolysis of viral precursor proteins into functional proteins, which is essential for coronavirus replication and is one of the ideal targets for the development of broad-spectrum antiviral drugs. This paper reviews the main protease inhibitors of SARS-CoV-2, including their molecular structures, potencies and drug-like profiles, binding modes and structure-activity relationships, etc.

Adolescent ; Burns ; therapy ; Child ; Child, Preschool ; Female ; Fluid Therapy ; Humans ; Infant ; Male ; Shock ; therapy

OBJECTIVETo investigate the expression of TGF-beta receptors in CD8+ T cells of oral lichen planus (OLP).

METHODSImmunohistochemical double labeling technique was used to examine the expression of TGF-betaR I and TGF-betaR II in CD8+ T cells of 28 OLP patients and in 10 controls. The results were compared between the two groups.

RESULTSThe double labeled cells were negative in controls. The positive rates of double labeled cells of CD8+/TGF-betaR I and CD8+/TGF-betaR II in OLP were (8.82 +/- 9.98)% and (1.11 +/- 2.94)% respectively.

CONCLUSIONSThe expression level of TGF-betaR II in CD8+ T cells of OLP did not increase compared with the controls, but the expression of TGF-betaR I increased. The results indicate the abnormal TGF-beta signal transduction in CD8+ T cells of OLP, which may contribute to the persistence of the chronic inflammation in OLP.

Adult ; CD8-Positive T-Lymphocytes ; metabolism ; Case-Control Studies ; Female ; Humans ; Lichen Planus, Oral ; metabolism ; pathology ; Male ; Mouth Mucosa ; metabolism ; pathology ; Protein-Serine-Threonine Kinases ; metabolism ; Receptors, Transforming Growth Factor beta ; metabolism ; Signal Transduction

OBJECTIVETo evaluate the effect of autologous bone marrow mesenchymal stem cells (BMSCs) seeded bio-derived bone materials (BBM) combined with recombinant human bone morphogenetic protein-2 (rhBMP-2) in repairing defect of osteonecrosis of femoral head (ONFH).

METHODSEarly-stage osteonecrosis in the left hip was induced in 36 adult New Zealand white rabbits (provided by the Animal Center of Guangxi Medical University, Nanning, China) after core decompression and delivery of liquid nitrogen into the femoral head. Then the animals were divided into three groups according to the type of implants for bone repair: 12 rabbits with nothing (Group I, the blank control group), 12 with BBM combined with rhBMP-2 (Group II), and 12 with BMSCs-seeded BBM combined with rhBMP-2 (Group III). At 4, 8, and 12 weeks after surgery, X-ray of the femoral head of every 4 rabbits in each group was taken, and then they were killed and the femoral heads were collected at each time point, respectively. Gross observation was made on the femoral heads. After hematoxylin and eosin staining, Lane-sandhu scores of X-ray and bone densitometry were calculated and the histomorphometric measurements were made for the new bone trabeculae.

RESULTSAt 12 weeks after surgery, two femoral heads collapsed in Group I, but none in Group II or Group III. X-ray examination showed that the femoral heads in Group I had defect shadow or collapsed while those in Group II had a low density and those in Group III presented with a normal density. Histologically, the defects of femoral heads were primarily filled with no new bone but fibrous tissues in Group I. In contrast, new bone regeneration and fibrous tissues occurred in Group II and only new bone regeneration occurrd in Group III. Lane-sandhu scores of X-ray, bone mineral density and rate of new bone in trabecular area in Group III were higher significantly than those of the other two groups.

CONCLUSIONSOur findings indicate a superior choice of repairing the experimental defect of ONFH with BMSCs- seeded BBM combined with rhBMP-2.

Animals ; Bone Morphogenetic Protein 2 ; Bone Morphogenetic Proteins ; administration & dosage ; Female ; Femur Head Necrosis ; pathology ; therapy ; Male ; Mesenchymal Stem Cell Transplantation ; methods ; Rabbits ; Recombinant Proteins ; administration & dosage ; Tissue Engineering ; methods ; Transforming Growth Factor beta ; administration & dosage

To synthesize salbutamol immunogen and develop an enzyme immunoassay (ELISA), a new salbutamol immunogen was synthesized using 4-aminobenzoic acid as a linker to connect hapten with carrier protein. An enzyme immunoassay based on the antibody prepared was developed and applied to detect salbutamol residue spiked in swine liver. An unusual coating antigen, clenbuterol-ovalbumin (OVA) conjugate instead of salbutamol-OVA conjugate, was used in the immunoassay and the results were discussed based on the structures of related compounds. The antibodies showed high sensitivity in the heterologous assay when using clenbuterol-OVA as a coating antigen, with an IC50 value of 8.97 ng mL(-1) toward salbutamol. The antibodies prepared showed high cross-reactivity with clenbuterol (107%) and were promising for the simultaneous determination of salbutamol and clenbuterol residues in food and food products. Recovery rates from the salbutamol-spiked swine liver samples were in the range of 70%-99%, while the intra-assay and inter-assay coefficients of variation were <13.3% and <14.3%, respectively. In summary, the antibodies of salbutamol have been successfully prepared. Sensitive and stable analysis for the detection of salbutamol residues in swine liver was obtained based on the competitive ELISA methods developed in this study.
4-Aminobenzoic Acid ; chemistry ; Adrenergic beta-Agonists ; analysis ; immunology ; Albuterol ; analysis ; immunology ; Animals ; Antibodies ; immunology ; Antibody Specificity ; Clenbuterol ; analysis ; immunology ; Drug Residues ; analysis ; Enzyme-Linked Immunosorbent Assay ; methods ; Food Contamination ; Haptens ; immunology ; Immunization ; Liver ; chemistry ; Male ; Ovalbumin ; chemistry ; immunology ; Rabbits ; Serum Albumin, Bovine ; chemistry ; immunology ; Swine