Attention Deficit Disorder with Hyperactivity ; diagnosis ; therapy ; Humans

Attention Deficit Disorder with Hyperactivity ; epidemiology ; Child ; Comorbidity ; Humans

It is the requirement to change the utility reading of medical undergraduates and to realize the functions of medical academic library for medical academic library to popularize reading service .The serial reading populari-zation service practice was thus described in this paper with certain feasible suggestions put forward for the further reading popularization activities.

Objective: To establish the quality standard for Ganmaoyangkeling Tablets(Radix Isatidis, Herba Solidaginis, Radix Glycyrrhizae, Rhizoma Zingiberis Recens, etc.). Methods: Radix Glycyrrhizae and Herba Solidaginis were identified by TLC, and the content of quercetinum was determined by HPLC. Results: Quercetinum shows a good linear relationship in the range of 0.05～0.40?g ( r =0.99997), and the average recovery is 101.9%, RSD is 2.07%. Conclusion: These methods is simple, accurate and specific and can be used for the quality control of Ganmaoyangkeling Tablets.

ObjectiveTo observe the effect of mycophenolate mofetil(MMF) on systolic pulmonary arterial pressure (SPAP), right ventricle index (RVI), cytokines, receptors of pulmonary artery hypertension (PAH) rat models. MethodsThe rat models of monocrotaline (MCT)-PAH were developed. Thinty-two Sprague-Dawley male rats were divided randomly into four groups: the control group, the MCT, the MCT +low-dose MMF (20 mg·kg-1·d-1, MMF 20) and the MCT + high-dose MMF(40 mg·kg-1·d-1, MMF 40).There were eight rats in each group. SPAP, RVI, cytokines and receptor in the serum and lung tissue were measured in all rats. Comparisons between multiple groups were performed with q test and rank sum test.Results① Low-dose and high-dose MMF group were compared with the MCT group, SPAP[(40±13),(53±10) vs (68±10) mm Hg]and RVI(0.36±0.06, 0.38±0.03 vs 0.44±0.05) were reduced and showed statistically significant difference respectively(P＜0.05). (②) Compared with the MCT group, basic fibroblast growth factor(bFGF) of serum in both low-dose and high-dose MMF group were reduced and showed statistical difference respectively[(2.3±1.9), (2.7:t±1.3) vs (6.9±5.4) pg/ml, P＜0.05]. ③ Low-dose and high-dose MMF group were compared with the MCT group and showed that MA was decreased and the musculization of arterial wall was improved. ConclusionMMF can reduce SASP, RVI, number of MA. The inhibitory effect of MMF in PAH is possibly by inhibiting cytokines and receptors.

Objective The aim of this study was to detect the serum 25-hydroxyvitamin D (25-OH-D)and anti-vitamin D levels in new cases of systemic lupus erythematosus (SLE),and to investigate their clinical significance.Methods Fifty patients who fulfilled the ACR criteria for the classification of SLE and 36 healthy donors were included.Enzyme-linked immunosorbent assay was performed for serum 25 [OH] D and anti-vitamin D level measurement.Statistical methods used were t-test and Pearson's correalation analysis.Results The serum 25-OH-D level in SLE was (13±6) ng/ml,and the level in healthy donors wase (17±8)ng/ml,P =0.007); the difference was statistically significant.A significant negative correlation was demonstrated between the serum level of vitamin D and the 24 h urinary protein excretion (r=-0.314,P＜0.01),and the level of serum creatinine (r=-0.322,P＜0.01).Anti-vitamin D antibody was detected in 6 of 50 patients with SLE,in 10 of 36 sera from healthy donors.There was no difference of 25-OH-D level between the anti-vitamin D antibody positive group and anti-vitamin D antibodu negative group [(13±6) and (14±6) ng/ml in the SLE group; (17±6) and (18±9) ng/ml in the healthy control group].Conclusion The serum 25-OH-D level in SLE is low; however,it is not correlated with Anti-vitamin D antibody,but is correlated with renal lesions.So the serum 25-OH-D level may be important in the pathogenesis of SLE.

Objective To investigate the characteristics of mesenteric vascular thrombosis (MVT) in patients with antiphospholipid antibody syndrome (APS).Methods The cases reports about MVT in patients with APS were searched in Pubmed and Chinese biomedical database (1983.1-2007.7) and then were analyzed.Results There were 13 males and 8 females in 21 patients.The average age was (37±17) years (5months～69 years).Three cases (14%) had a history of deep venous thrombosis and 4 (19%) had spontaneous abortions.The course of disease was 4 hours to 4 months.The clinical manifestations included abdominal pain 18 (86%),hemafecia or melaena 4 (19%),vomiting 3 (14%),diarrhea 2 (10%),hematemesis 2(10%).Physical signs included abdominal tenderness in 10(48%),peritoneal irritation signs in 5 (24%),shifting dullness in 3 (14%) anddecreased bowel sounds in 3 (14%).Mesenteric vascular thrombosis were detected through B uhrasonography (3/10,33%),abdominal CT (9/13,69%),MRI (4/4,100%),Doppler ultrasound (4/4,100%),angiography (6/6,100%).Eighteen cases (86%) had positive anti-cardiophospholipin antibody and 14 (67%) were IgG-subtype.Lupus anticoagulants were detected in 4 (19%).Sixteen cases reee-ived exploratory laparotomy,lsehemia or necrosis of intestine were found in 9(56%).In 21 cases,superior mesenteric vein thrombosis,suprior mesenteric artery thrombosis,inferior mesenteric vein thrombosis,inferior mesenteric artery thrombosis were discovered in 17 (81%),4 (19%),0 (0%),1 (5%)patients respectively.Portal vein was also involved in 7 (33%) cases who had superior mesenteric vein thrombosis.Conclusion Superior mesenteric vein is usually involved in patients with APS who have MVT.MVTs are always occurr in middle-age male patients.Some patients have deep vein thrombosis or spontaneous abortion before MVT.The disease may be fulminant or had is insidious in onset.Abdominal pain and intestinal obstruction are the most common manifestations.IgG-subtype anticardiophospholipin antibodiesare the common antibodies discovered in these patients.Combined more than one image methods can detect the thrombi effectively.Anticoagulation and essential exploratory laparotomy are effective interventions in most cases.

Objective To investigate the effect of mycophenolic acid (MPA) on the endotheline-1 (ET-1) induced proliferation, contraction and migration of pulmonary arterial smooth muscle cells (PASMCs)and to explore the mechanism of MPA on pulmonary arterial hypertension (PAH), and the effect of exogenous guanosine nucleotide reversing anti-proliferative effect of MPA. Paired-samples t-test was used for statistical analysis. Methods MTT test, scarification test, Millicell cell culture insertion and the length of PASMCs mcasured under microscope were used. Results The A values of group ET-1 + low concentration MPA decreased when compared with group ET-1 (0.348±0.036 vs 0.447±0.013, t=6.357, P=0.000) and the A values of group ET-1 + high concentration MPA was further decreased. The A values of group ET-1 + low concentration MPA + guanosine was higher than that of group ET-1 + low concentration MPA (0.390±0.018 vs 0.348 ±0.036, t=2.573, P=0.028). The average migration distance and the average migration numbers of PASMCs of groups MPA was decreased than that of group ET-1. The average cell length of PASMCs of groups MPA was increas ed than that of group ET-1. Conclusion MPA can effectively inhibit the proliferation,contraction and migration of PASMCs by ET-1 induction. The IMPDH may play a role in anti-proliferative effect of MPA on PASMCs, but is unnecessary to be the sole mechanism. These findings has provide new insight into the mechanisms of mycophenolate mofetil in the treatment of PAH.

Objective To study relationship of expression of Survivin and cyclooxygenase(COX)-2 in the tissue of non-small cell lung cancer (NSCLC) with differentiation, lymph node metastasis and clinical stage. Method The expression of Survivin and COX-2 were detected by immunohistochemical SP staining in the specimens of 43 cases of NSCLC and 20 cases of para-cancerous lung tissue. Results The positive rate of Survivin and COX-2 was 67.4% (29/43) and 55.8% (24/43) respectively in NSCLC,was 0 respectively in the para-cancerous lung tissue. Compared with para-cancerous lung tissue,there was statistically significant difference(P< 0.01). Both Survivin and COX-2 had significantly higher expression in NSCLC with poor differentiation,lymph node metastasis and clinical stage of Ⅱ-Ⅲ than those with well differentiation,without metastasis and clinical stage of Ⅰ (P <0.05). Conclusion The expression of Survivin and COX-2 are high in NSCLC,they both have relationship with differentiation,lymph node metastasis and clinical stage of NSCLC.

As a species of acute respiratory tract pathogen in mankind, Chlamydia pneumoniae can cause upper respiratory tract infection, pneumonia, it may also play an important role in bronchial asthma, chronic obstructive pulmonary diseases, sarcoid, lung cancer.