This article analysis the present situation of less than 35 years of Sun Yat-sen university youth scientific and technological personnel,they declare、undertake to support basic research based science fundation related cases,discusses the science foundation for their assistance and training problems,put forward youth scientific talents to suit the science funds development requirements to promote their development proposals

OBJECTIVE:To compare the effects of2different treatment methods on the assaying of triptolide alcohol in tripterygium wilfordii cut crude drug.METHODS:After concentration,tripterygium wilfordii cut crude drug water decoction underwent column chromatographic separation after adsorption with neutral alumina(Method1)and neutral alumina column chromatographic separation after ethanol precipitation and extraction by chloroform(Method2),respectively.Triptolide alcohol was determined by HPLC and the assaying result underwent pairing and t tests.RESULTS:There was significant difference between the2methods with the content determined by Method1significantly higher than that by Method2(P

Alteration of H-and M-isozymfs of Lactic Dehydrogenase(LDH) were observed in the various tissues after exposing the rats to 50ppm and 250ppm of sulfur dioxide. These isozymes of the respective tissue were separated by Diethlaminoethyl(DEAE)-cellulose from tile tissue homogenates of brain, lung and muscle, presenting the activities by rate of reduction of nicot inamids-adenine-dinucleotide (NAD+). Pure LDH and the coenzyme NAD (NAD) were directly treated with sulfur dioxide in vitro order to find out the direct to sulfur dioxide on LDH and NAD+ and the results were as follow. 1. In the normal tissues, the H-isozyme activity was dominant in the brain and heart, and tole M-isozyme in the muscle. 2. In the lung tissue of normal rats, there was no different between tole activity of H-and M-type of LDH. 3 When rats inhale sulfur dioxide gas in concentration of 50ppm and 230ppm, it appeared that the H-type tend to be suppressed in aerobic tissues and the M-type in anaerobic tissues. 4. In the lung tissue exposed to sulfur dioxide, both the LDH activities were suppressed. 5. It seems that LDH and the coenzyme (NAD ) are not directly affected by exposing in sulfur dioxide gas.
Animals ; Brain ; Heart ; Isoenzymes ; Lung ; NAD ; Rats ; Sulfur Dioxide* ; Sulfur*

Although alpha2-adrenoceptor agonists are widely used as postoperative sedatives in adults, the postoperative effects in pediatric patients with secondary pulmonary arterial hypertension (PAH) due to congenital heart disease are not well known. We experienced a case of successful ventilator weaning with continuous intravenous administration of dexmedetomidine (DEX) after surgical correction in a 46-month-old child with congenital ventricular septal defect (VSD) with severe PAH. She underwent VSD closure on cardiopulmonary bypass (CPB). After successful weaning from the CPB, hemodynamics and oxygenation were stabilized on DEX and nitroglycerin in the intensive care unit. The patient was successfully weaned from the ventilator 46 hours after surgery. The transthoracic echocardiogram two weeks after surgery showed a closed VSD with no residual shunt and trivial tricuspid regurgitation (Vmax = 2.5 m/sec) without PAH.
Administration, Intravenous ; Adult ; Cardiopulmonary Bypass ; Child* ; Child, Preschool ; Dexmedetomidine* ; Heart Defects, Congenital ; Heart Septal Defects, Ventricular* ; Hemodynamics ; Humans ; Hypertension* ; Hypnotics and Sedatives ; Intensive Care Units ; Nitroglycerin ; Oxygen ; Tricuspid Valve Insufficiency ; Ventilator Weaning ; Ventilators, Mechanical ; Weaning

Humans ; Kyphosis ; complications ; surgery ; Osteotomy ; methods ; Scoliosis ; complications ; surgery ; Treatment Outcome

Asian Continental Ancestry Group ; Cardiovascular Diseases ; ethnology ; prevention & control ; Humans

Cross-Cultural Comparison ; Medicine, Chinese Traditional ; Translations

Cardiovascular Diseases ; drug therapy ; Humans ; Platelet Aggregation Inhibitors ; administration & dosage ; adverse effects ; therapeutic use

Objective To identify the value of medical journals by analyzing the papers covered in Medical F1000. Methods The papers published before November 2012 recommended by Medical F1000 were retrieved,the recommended ratios of the total number of papers published in journals each year were calculated and ranked.Results A total of 27960 papers were recommended by Medical F1000.Of these papers,801 were published in New England Journal of Medicine and ranked first.A great difference was found in the number of papers ranked according to their recommended ratios and the recommended number of papers.Conclusion Only a small number of papers are recommended by Medical F1000.However,they can help readers access to the valued medical information in the shortest time.The recommended ratio and the recommended number of papers are the important evidence for the assessment of journals.

Objective To investigate the feasibility of bedside temporary transvenous cardiac pacing with balloon tipped floating catheter under non X-ray fluoroscopy.Methods Twenty-four patients of bedside temporary transvenous cardiac pacing,11 cases underwent common electrode (common group),13cases underwent balloon tipped floating electrode (balloon tipped group).The operating time,pacing thresholds,pacing perception and complications were observed between two groups.Results All balloon tipped group placement success,8 cases in common group successfully.The operating time in balloon tipped group was significantly less than that in common group [(2.5 ± 1.5) min vs.(9.3 ±5.3) min],there was significant difference (P ＜ 0.05),but pacing thresholds and pacing perception between two groups had no significant difference (P ＞ 0.05).Common group occurred complications in 2 cases,respectively cardiac perforation and induced paroxysmal ventricular tachycardia,balloon tipped group occurred concurrent electrode wire dislocation in 2 cases.Conclusion Compared with the common electrode,balloon tipped floating electrode is simple,fast,high success rate and low risk of complications,suitable emergency physician bedside operating emergency temporary pacing.