3.Non-allergic rhinitis and its impact on asthma.
Chinese Journal of Otorhinolaryngology Head and Neck Surgery 2010;45(12):1052-1055
Asthma
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immunology
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Humans
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Rhinitis
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immunology
5.Effects of rehabilitation training on the expression of Fos in the central nervous system of rats with cerebral infarction
Chinese Journal of Physical Medicine and Rehabilitation 2001;23(1):7-10
Objective To study the effect of rehabilitation training on the expression of Fos in the central nervous system(CNS) of rats with cerebral infarction. Methods 60 SD rats were made as cerebral infarction models and divided into 2 groups at random 24 hours later: rehabilitation group was given balancing, grasping, rotating and walking and other trainings everyday, while immobiligation group was fixed in cages. Immunohistochemistry was used to detect the Fos expression 1 d, 7 d, 14 d, 21 d and 28 d after infarction respectively. Results Fos-positive immune reaction appeared in cortex,thalamus, hypothalamus, reticular form and posterior gray horn of the spinal cord of both groups .Rehabilitation group responded stronger than the immobilization group significantly (P<0.01).Conclusion Rehabilitation training can activate cortical neurons around the infarted focus and in its opposite side of the CNS, and thus promote the recovery of rats' motor functions.
6.Adeno-associated virus-mediated pancreatic and duodenal homeobox gene 1 delivery induced insulin-producing cells in livers of diabetic rats
Chinese Journal of Clinical Pharmacology and Therapeutics 2007;12(6):614-619
AIM: Pancreatic and duodenal homeobox gene 1(pdx-1) is a crucial transcription factor in pancreatic islet development and differentiation. This study was conducted to evaluate whether pdx-1 delivered by adeno-associated virus (AAV) could induce liver cells to differentiate into insulin-producing cells in diabetic rats and thus provide more information for cell replacement therapy for diabetes. METHODS: Recombinant AAV vector was employed to deliver pdx-1to STZ-induced diabetic rats via portal vein (4×1011). Blood glucose and body weight were monitored. Gene expression of pdx-1 and insulin were determined by RT-PCR and immunocytotochemistry (ICC) at the 6th week after the injection. RESULTS: AAV-pdx-1 group showed obvious gene expression of pdx-1 and insulin by RT-PCR analysis and the presence of more insulin-positive cells by ICC. Hyperglycemia was partially ameliorated and body weight was also increased in AAV-pdx-1 treated diabetic rats, though still significantly different from those in the non-diabetic group. CONCLUSION: The data indicate that AAV-pdx-1 can induce more rat liver cells into insulin-producing cells in vivo, thereby ameliorate hyperglycemia. Further experiments are needed to explore which subpopulation of liver cells responds to this development shift and the mechanism of this development shift induced by pdx-1 in order to improve the differentiation efficiency.
7.Effect of lipoxin A4 on lipopolysaccharide-induced oxidant stress in human renal tubular epithelial cells and possible mechanisms
Fen XU ; Hua HAO ; Hua DAI ; Lixiang LI ; Lei ZENG
The Journal of Practical Medicine 2017;33(1):51-55
Objective The study aimed to investigate the effect of lipoxin A4 (LXA4) on lipopolysaccharide (LPS)?induced oxidant stress in human renal tubular epithelial cells (HK2 cells) and possible underlying mecha?nisms. MethodsHK2 cells were divided into three groups: Control ,LPS and LPS+LXA4 groups. After cells were treated with indicated conditions,morphological changes were observed. The expressions of Nrf2 were detected by immunofluorescence and cells were collected for RT?PCR experiments.Results HK2 cells seemed disrupted and necrotic with the administration of LPS. However ,LXA4 could prevent cells from injury induced by LPS. LPS decreased Nrf2 expression and promoted it to translocate to cytoplasm ,while LXA4 could increase its expression and promote it to translocate to nucleus. Moreover ,LPS could decrease Nrf2 and its downstream molecule mRNA expressions,but LXA4 could reverse this effect. Conclusion Our results demonstrated that LXA4 effectively inhibit?ed HK2 cell oxidant stress via Nrf2 pathway.
9.Clinical study on the treatment of knee osteoarthritis combined with synovitis with Gubiqing
International Journal of Traditional Chinese Medicine 2010;32(1):56-57
Objective To observe the effects of treating knee osteoarthritis(KOA)combined with synovitis with Gubiqing,and discuss its mechanism.Methods A total of 60 cases with KOA were randomly recruited into a control group and a treatment group,30 cases in each.TCM symptoms,signs and health assessment questionnaire(HAQ)were observed before and after the treatment.Results The tohal therapeutic effect was 90%and 70%in the treatment group and the control group respectively.There was significant difference between the two group(χ~2=48,P=0.003).Body signs and HAQ were also greatly improved in the treatment group(t=0.004、P=0.008).Conclusion Gubiqing can not only restrain chondrocyte apoptosis in knee osteoarthritis combined with synovitis,but also relive the damage of articular cartilage.