[Objective] To observe the anti - aging effects and explore the mechanism of Qibao Meiran Pellet (QMP) and its modified prescriptions, including QMP with qi - invigorating and spleen - strengthening herbs, with kidney -nourishing herbs or with blood - activating and purgative herbs. [ Methods ] Ten - month - old model rats were established by D - galactose. Serum free radical levels and immune indexes in QMP group and various modified QMP groups were observed. [ Results ] QMP increased the activity of superoxide dismutase ( SOD). QMP combined with kidney - nourishing herbs or blood - activating and purgative herbs decreased the serum level of malondialdehyde (MDA) and increased the activities of glutathione peroxidase (GSH - Px) and SOD. Meanwhile, QMP combined with kidney -nourishing herbs increased interleukin - 2 activities. [ ConclusionJ QMP, mainly composed of herbs for nourishing liver and spleen, can delay the aging of rats, and spleen - strengthening herbs and blood - activating and purgative herbs also play an important role in the delay of aging. Furthermore, it is suggested that the anti - aging effect of herbal medicine is related to the sex.

BACKGROUND:Micro-fracture surgery method is simple, easy to operate, which is an effective way to treat articular cartilage defects, but there are stil some problems such as regenerated fibrocartilage and regenerated cartilage degradation. Scholars have focused on the use of various methods to improve the micro-fracture effect on repairing cartilage defects.
OBJECTIVE:To explore the effects of micro-fracture enhanced by autologous bone marrow mesenchymal stem cells extracellular matrix (aBMSC-dECM) scaffold for treating cartilage defects in minipig models.
METHODS:Bone marrow was extracted from the minipigs and bone marrow mesenchymal stem cells were obtained. aBMSC-dECM membranes were col ected. Cross-linking and freeze-drying technology were used to make the three-dimensional porous aBMSC-dECM scaffold. Ful thickness cartilage defects, 2 mm in depth and 6 mm in diameter, were created on the femoral condyles and trochlea grooves of the two knees of the minipigs. The right knees were treated with micro-fracture as control and the left were treated with micro-fracture enhanced by aBMSC-dECM scaffold. Six months later, histological examination and Wakitani score were used to evaluate the cartilage regeneration, and glycosaminoglycans and DNA contents in the regenerative tissue were determined.
RESULTS AND CONCLUSION:After 6 months, the tissue treated by micro-fracture enhanced by aBMSC-dECM scaffold got better surface and integrated with the surrounding cartilage. Safranin O and fast green staining and Masson staining showed that the regenerated cartilage of the left knee, with abundant matrix and dense bone trabeculae, was better than that of the right. Wakitani score of the left knee was higher than that of the right. Glycosaminoglycans content of the left knee was much more than that of the right, while the DNA content was lower in the left knee than the right knee. Better results were observed in the left knee undergoing micro-fracture enhanced by aBMSC-dECM scaffold, and improvements in the femoral condyles and trochlea grooves showed no differences.

Objective To study the changes of gastrin 17 (G17) and pepsinogen (PG) after gastric bypass surgery in gastric antrum resection, and the influences of different surgical methods on postoperative peptic ulcer. Methods Clinical data of 63 patients with gastric bypass surgery in our hospital from October 2013 to October 2015 were divided into resection of pyloric antrum group (n=33) and preserved pyloric antrum group (n=30). The values of G17, PGⅠ, PGⅡand PGⅠ/PGⅡwere detected by enzyme linked immunosorbent assay at 1 month, 6 months and 12 months after operation. The correlation between the different surgical methods and the incidence of peptic ulcer was analyzed between two groups. Results The G17 levels were significantly decreased in resection of pyloric antrum group 6 and 12 months after operation than those in preserved pyloric antrum group (P<0.05). Compared with preserved pyloric antrum group,PGⅠ and PGⅡ levels was significantly decreased 12 months after operation (P<0.05). There was no significant difference in the ratio PGⅠ/PGⅡat 1 month, 6 months and 12 months after operation between two groups (P>0.05). There was no significant difference in postoperative peptic ulcer between two groups (P>0.05). Conclusion Gastric bypass after resection of the pyloric antrum can reduce the postoperative secretion of G17, PGⅠ and PGⅡ, but which can not reduce the incidence of postoperative anastomotic ulcer.

Type Ⅰ sialidosis is a neurosomatic disorder related to the storage of lysosomal and induced by shortage of neuraminidase. It is an autosomal recessive disorder, maybe heterogeneous in its onset, clinical manifestations and prognosis. A case of type Ⅰ sialidosis with a missense mutation in the α-N-acetyl-neuraminidase (NEU1) gene is reported. The patient was characterized by reduced visual acuity, ataxia and subcortical myoclonus. Although the macular cherry red spots were not detected in the male patient, his bilateral visual evoked potential showed severely prolonged latencies of P100, which was consistent with continuous decline of his visions. Finally, he was treated with carbamazepine and clonazepam with moderate improvement in the symptom of myoclonus. In order to make the definite diagnosis, the importance of a clinical history integrating all the patient′s clinical manifestations and the mutation in NEU1 gene was highlighted. Regardless of being an uncommon disorder, the burden for those patients with sialidosis was significant. Therefore, this diagnosis in the relevant setting should always be considered.

Objective To explore the clinical efficacy of percutaneous vascular forming and stenting in patients with severe stenosis combined with cerebral infarction.Methods The clinical data of 74 patients with severe carotid stenosis combined with cerebral infarction,admitted to our hospital from January 2011 to January 2014,were analyzed;and according to the treatment methods,all patients were divided into operation group (percutaneous angioplasty and stenting,n=37) and non-operation group (conventional therapy,n=37).Follow-up was performed one,3 and 6 months after discharge,and the prognoses of these patients were evaluated with NIHSS and mini-mental state examination (MMSE).Results Before treatment,the rate of carotid artery stenosis,NIHSS scores and MMSE scores in the two groups showed no significant differences (P＞0.05).After treatment,stenosis rate of the operation group ([32.35±4.15]％) was significantly lower than that in the non-operation group ([72.32±7.72]％,P＜0.05).One month after treatment,the MMSE scores in the operation group (22.24±2.74) were significantly higher than those in the non-operation group (20.29±3.15,P＜0.05).Three months after treatment,the NIHSS scores in the operation group (7.05±1.35) were significantly lower than those in the non-operation group (8.89±1.76,P＜0.05).Conclusion Percutaneous vascular forming and stenting can help to achieve favorable outcome in patients with severe stenosis combined with cerebral infarction,which achieves better effect than conventional therapy.