The toxic and teratogenic effect of AlCl_3 on leghorn chick embryos were studied. Different concentrations of AlCl_3 dissolved in redistilled water were injected into the air sac of the eggs (0.2 ml per egg) on the third day of incubation. It was identified that the maximal permissible dosage was 1.708 ?mol/egg, the minimal lethal dosage was 2.25 ?mol/egg, the absolute lethal dose was 35.34 ?mol/egg, and LD_(50) was 8.09 ?mol/egg. The mortality of the embryos raised with the increase of the dose of AlCl_3. AlCl_3 also retarded the development of chick embryos and showed apparent tetratogenic effects.

Objective To analyze the long- term results of vascularized fibular graft to repair defects of long bone. Methods Nineteen patients undergone vascularized fibular graft were followed- up for 5－ 20 years(mean 10.79 years). Limb function was graded with Enneking s system, and presented as percentage of normal limb function. The changes of the vascularized fibular graft were evaluated radiographically according to the International Symposium on Limb Salvage. Results The long term results of the vascularized fibular graft varied in different types of bone defects. Nine patients with congenital pseudoarthrosis of tibia had the limb function restored in 65％ and one had nonunion of fibular graft, 3 fractures(7 times), and 5 angular deformities. Three patients with congenital radial deficiency had 62％ restoration of the limb function. All of them showed early closure of epiphyses of the grafted fibulae. Five cases with osteomyelitis and bone defects combined soft tissue deficiency had 94％ restoration of the limb function, and only one occurred fracture of fibular graft. One case with soft tissue defect and concomitant ulnar defect, ulnar nerve and median nerve injury, 67％ function of limb was recovered, and union of fibula graft was good. 100％ function of limb was recovered in 1 case with cavernoma of radius and without occurring valgus deformity of donor site. Conclusion The vascularized fibular graft is a good method for repairing long segmental defects of bone. Combined with other tissue flap, the operation can reconstruct bone defect and fulfil the cover of soft tissue. For congenital tibia pseudoarthrosis and radial deficiency, the long- term results are not so satisfactory.

0.05),but CD3,CD4,CD8 and CD4/CD8 were obviously decreased in exposure group than in control group(P

ABSTRACT:Objective To explore cardiac function and myocardial collagen type I in diet-induced insulin-resistant rats and the effect of telmisartan on cardiac diastolic function in diet-induced insulin-resistant rats. Methods We randomized 27 Wistar rats into control group (n = 9 ),high-fat group (n = 9 ),and telmisartan treatment group (n = 9 ).At the end of the study,left ventricular end diastolic pressure (LVEDP)and left ventricular systolic pressure (LVSP)of the rats and ± dp/dt were detected by carotid artery intubation.Masson cardiac staining was used to observe cardiac fibrosis,and collagen volume fraction (CVF)was measured.ELISA method was used to detect the concentration of plasma PICP and ICTP.Results Compared with the control group,in high-fat group LVEDP was significantly higher and -dP/dtmax decreased significantly (P < 0.01 );the plasma PICP level and the ratio of PICP/ICTP were significantly increased (P <0.01),cardiac collagen volume
fraction was significantly higher (P <0.01).After 22 weeks’telmisartan intervention,compared with the high-fat group,LVEDP and LVSP were significantly decreased (P < 0.01 ),but -dP/dtmax significantly increased (P <0.05).The level of the plasma PICP and PICP/ICTP were significantly decreased (P < 0.05 );left ventricular myocardial tissue collagen volume fraction content was decreased (P <0.01).The correlation analysis showed that cardiac collagen volume fraction in insulin-resistant group was positively correlated with insulin resistance index but negatively correlated with -dp/dtmax (P < 0.01 ).Conclusion Insulin resistance promoted the synthesis of myocardial type I collagen,leading to increased myocardial collagen deposition and decreased cardiac diastolic function.Telmisartan may improve diastolic function partly by improving insulin resistance and reducing the deposition of myocardial collagen type I.

Objective To establish a headspace GC method for determination of residual organic solvents as methanol, ethanol,dichloromethane and n-hexane in trepibutone. Methods An external standard method was used. A DB-624 capillary column (75 m× 0.450 mm,2.55 μm) was used with a FID detector. The injector temperature was 200 ℃ and the detector temperature was 250 ℃ .The initial column temperature was 50 ℃ ,kept for 6 min,then raised to 200 ℃ at a rate of 20 ℃ ?min-1 and kept for another 12 min. Nitrogen was used as the carrier gas. The flow rate was 3. 0 mL ? min-1 . The headspace vials equilibrium temperature was 80 ℃ and the balance time was 30 min.The injection volume is 1 mL. Results A1l the solvents could be completely separated with good linear relationships.The average recoveries of the four solvents were 100.4% ( RSD =0.5%), 100.6%(RSD = 0.6%), 99.6% ( RSD = 0.8%), 98.7% ( RSD = 0.7%) ( n = 9),respectively. Conclusion The method is simple and accurate,and can be used in the determination of residual solvents in trepibutone.

Objective To compare the efficacy of inhaled Iloprost and nitric oxide( NO)in infants with moderate or severe pulmonary hypertension(PH)after congenital heart disease surgery. Methods This was a prospec-tive randomized study in Children's Hospital of Fudan University from January 2011 to January 2014,including 40 in-fants who suffered from moderate to severe PH after heart surgery. Their ages ranged from 1 to 24 months. Their weight ranged from 3. 2 to 11. 0 kg. They were randomly allocated to inhale NO( NO group,n = 20)or Iloprost( Iloprost group,n = 20). Iloprost group was given Iloprost with 50 ng/(kg·min)for 10 min and then combined with NO 20 × 10 - 6 for 10 min;NO group was first given 20 × 10 - 6 of NO for 10 min,then combined with Iloprost 50 ng/(kg·min) for 10 min. Heart rate,systolic blood pressure,pulmonary artery pressure(PAP)and central venous pressure were recor-ded continuously. At the same time,the concentration of nitrogen dioxide and methemoglobin after inhaling NO was de-tected. Results Inhaled Iloprost and NO caused significant reduction in PAP(t = 4. 670,P = 0. 009;t = 3. 762,P =0. 004)and pulmonary - to - systemic pressure ratio(Pp/ Ps)(t = 16. 974,P = 0. 000;t = 9. 682,P = 0. 000)but signifi-cant increase in oxygen index separately. The combination had no additional effect compared with single application. In term of the reduction of PAP,there was no significant difference between inhaled Iloprost and NO(F = 2. 742,P =0. 129). The levels of nitrogen dioxide and methemoglobin were not above the normal limits. Conclusions Moderate to severe PH after cardiac surgery was significantly reduced by inhaled NO and Iloprost. They had similar effects. However, the combination of both vasodilators failed to prove more potent than either substance alone. Compared with the potential toxicity of NO,the individual differences and the complex transmission,Iloprost may be more reasonable and feasible for the postoperative treatment of PH.

Objective The current study was designed to investigate the inhibitive effect of celastrol on the proliferation of acute myelogenous leukemia (AML) cells. Methods The effect of celastrol on AML cells in vitro was examined by MTT assay and flow cytometry (FCM). Results After the AML primary cells were treated with different concentrations of celastrol, the results were analyzed by MTT. The growth of the cells were significantly inhibited compared with the control group (P ＜0.01). The results detected by FCM showed that the apoptosis was seen after treated with celastrol with different concentration for different times.The apoptotic rates were significantly higher than that in the control group with statistical significance (P＜ 0.01).Conclusion Celastrol could inhibit the proliferation of AML cells in vitro, which may be associated with inducing cell apoptosis.

Objective To investigate the characteristics of quality of life (QoL) and self-awareness in girls with idiopathic central precocious puberty (ICPP) and the correlation between QoL and the self-awareness.Methods The inventory of subjective life quality (ISLQ) and Children's self-concept scale (PHCSS) were employed to evaluate the level of QoL and self-awareness in 24 ICPP girls with ICPP (ICPP group) and 24 normal control girls (control group),and the correlation analysis between QoL and the self-awareness in the ICPP group was made.Results The score of overall (70.85±14.11 vs 80.21±6.07) and emotion component satisfaction (62.61± 12.91 vs 73.74±5.02),dimensions satisfaction on school life (5.80± 1.44 vs 6.69±0.65),depression experience (6.55± 1.14 vs 7.29±0.45),anxiety experience (5.93± 1.35 vs 6.96±0.82) and physical emotion (6.33±1.17 vs 7.12±0.83) in ICPP group was respectively lower than control group (P＜0.05).There was no difference in cognitive component between control group and ICPP group,as well as for other dimension satisfaction.Moreover,the score in total self-awareness,physical appearance and anxiety in ICPP group was respectively lower than those in control group (P＜0.05).In addition,a positive correlation was found between the subjective QoL and the children self-concept in ICPP group (P＜0.01).Conclusion The girls with ICPP show a lower subjective QoL and self assessment than normal girls.It is important to take care of the psychological feature of the girls with ICPP to improve the self-assessment and overall QoL during the medication.

Objective To investigate the perihematomal changes of hyperacute parenchymal hematomas and the clinical value by MRI. Methods Multi-sequence MRI was performed on 4 hematomas in vitro and on 15 pigs with lobar intracerebral hemorrhage (ICH) for about 30～60 min and 3 h respectively. The integrity of blood-brain barrier (BBB) in ICH pigs was assessed by electron microscopy and Evan's blue dye technique. MR scanning was performed on 2 ICH patients proved by CT for 4 and 9 h after onsets. Results FLAIR and T 2-weighted images showed hyperintensity signal around the hematomas in vitro and in pigs with ICH within 1 h, and more obviously at 3 h. When the gelose cavity was cut, plasma was seen around the clot. The perihematomal ADC values of the pigs increased both within 1 and at 3 h after ICH. However, the BBB was intact at 3 h, which was proved by electron microscopy and Evan's blue dye technique. Water-like intensity signal was observed around the hematomas in two patients with acute ICH. Conclusion The perihematomal changes of hyperacute ICH observed on MRI are resulted from the blood clot contraction and the serum formation and extravasation, but not real cerebral edema.

Objective To explore small size toe tissue flap for aesthetic reconstruction of the thumb and / or finger. Methods Six kinds of small size toe tissue transplants had been applied in repairing skin-bone-joint composite tissue defects of the thumb or finger in 74 cases. Results Among 83reconstructed flaps of the 74 patients, 81 flaps survived completely. Follow-up examination made three to forty-eight months postoperatively showed that the outward appearance were excellent in most cases. The function of the thumbs or fingers were good. The donor feet can walk normally with no pain. Conclusion A variable combinations of toe tissues including skin, soft tissue, bone and joint can be harvested to form a lot of small size transplants for refined aesthetic reconstruction of thumb and finger. The functional and aesthetic results are good and the treatment course is shortened.