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Articles by Yanmin Zhou
Total Records ( 2 ) for Yanmin Zhou
  Ming Qian , Min Liu , Mengna Duan , Haiyang Zhang , Zhe Wu and Yanmin Zhou
  Substance P (SP) is known to play an important role in bone mineralization. However, little is known about the potential of substance P as an osteogenic inducer in human Adipose-Derived Stem Cells (hADSCs) in vitro. Therefore, the aim of this study to investigate the effects of substance P on proliferation and osteogenic differentiation of hADSCs in vitro. Human Adipose-Derived Stem Cells (hADSCs) derived from wasted adipose tissue in liposuction operation were cultured. Expression of the SP receptor (NK1) was detected by RT-PCR. Effects of SP on proliferation and differentiation of hADSCs were studied, moreover alkaline phosphatase activity was also assayed. It was found that the NK1 receptor was expressed in hADSCs. SP stimulated the proliferation of hADSCs in a concentration-dependent manner. Higher concentrations (10G8 M) of SP increased alkaline phosphatase activity and enhanced differentiated in hADSCs. NK1 receptors are expressed by hADSCs and SP stimulates osteoblast differentiation and function in vitro. These findings strengthen the knowledge about the role of SP in hADSCs.
  Qiujue Wu , Yuqin Wang , Zhanbin Wang , Yanmin Zhou and Tian Wang
  Acid modified clinoptilolite are usually used as adsorbents for NH3, heavy metals and organic contaminants. Acid-modified clinoptilolite was prepared using the method of ion exchange reaction at 80°C for 4 h and used for bacteria and toxins adsorption which are significant for providing mechanism for the adsorption of microorganisms in vitro. XRD, SEM, AFM, BET and micropore volume were used to characterize parent clinoptilolite and acid modified clinoptilolite. Cation Exchange Capacity (CEC) was used to determine changes of adsorption ability before and after modification. The acid-modified clinoptilolite showed the strong adsorptive in the rang of 20-25 mg g-1 when the initial bacterial suspension concentration was 1x108 Colony Forming Units (CFU)/mL. The adsorption capacities of acid-modified clinoptilolite for all bacterial suspension increased with an increase of initial bacterial suspension concentration. An increase of adsorption capability of acid-modified clinoptilolite was attributed to the BET and micropore volume. These results indicated the competency of acid-modified clinoptilolite adsorbent for bacteria adsorption.
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