Our understanding of the immunological mechanisms of rejection has greatly improved over the past 10 years. The allografts have maintained long survival without immunosuppressive treatment in the several organ-transplant recipients combined with hematopoietic stem cell transplantation. The authors attributed the successful outcome to the cotransplantation of donor stem cells. The review will analyze firstly conditions of the recipients, and then review the theoretical basis and history regarding donor-specific tolerance of allograft, and it will also clarify that there is no direct link between the donor-specific transplantation tolerance and hematopoietic stem cell transplantation.

Objective This experiment aimed to study the influence of deep sea water (DSW) on wound healing of mice .Methods 24 Mice were randomly divided into two groups :group DSW(n=12) and group sterilize tap water(STW)(n=12) ,freely feeding for 14 days respectively ,and calculated the amount of food and water .On the 15th day ,1 cm × 1 cm size of wound was established on the back area of mice ,and continued to feed with DSW and STW respectively .Tracking the wound healing rate .Specimen was taken in the edge of wound tissue on postoperative 3 ,5 ,7 days ,then observed histopathological changes .Results Compared group DSW with group STW ,there was no significant difference in the total amount of food and water .5 days after the formation of wounds ,the wound healing rate of group DSW was significantly higher than group STW .Histological observation :compared with group STW ,vascular endothelial cells and new capillaries of the group DSW was increased ,and group DSW had less inflammatory cell and more fibroblast cells proliferation .Conclusion deep sea water can promote wound healing .

Objective To research the value of using constant circling individual training program to improve surgery clinical skills of clinical medical specialty interns.Method 42 interns were divided into 3 groups:A(excellent),B(medium) and C(poor) according to their scores in entrance clinical skill test and each group would perform respective training program including conventional training,unified intensive training and intensive training in person.Their performance would be scored six times during the whole process of training.Results Compared with the final scores with beginning scores,the number of students scored A increased significantly meanwhile the number of students scored C decreased obviously.Conclusion The constant circling individual training program combined with effective unified test can benefit improving the surgery clinical skills of the interns of clinical medicine.

Objective To explore the anti‐cancer effects of physiological deep‐sea water(PDSW) combined with hyperther‐mia for hepatocellular carcinoma in vitro .Methods Deep‐sea water (DSW) from the south Chinese sea was processed ,and made in‐to PDSW ,detection of some elements .In vitro ,the cultured normal liver cells and human hepatoma QGY‐7703 cells were randomly divided into PDSW group and normal saline(NS) group ,the NS group received saline ,the PDSW group received different concentra‐tions of PDSW .Two groups were heated respectively to 6 h of 40 ℃ or 1 h of 43 ℃ ,24 ,48 ,72 h after the administration of PDSW or saline ,the normal liver cells and QGY‐7703 cells proliferation capacity and toxicity were investigated by MTT assay .At the same time testing PDSW and NS in 40 ℃ 6 h for 10 d state of human liver QGY‐7703 cell clone formation rate .Results The results of MTT assay showed that tumor inhibitory rate were time and concentration dependent in tow groups .Tumor inhibitory rate of PD‐SW group in different time was significantly higher than NS group (P<0 .05) .On the other hand ,the inhibitory of hepatocyte for PDSW group in different time were significantly lower than NS group .In addition ,the clone formation rate of PDSW group was lower than those of NS group(P<0 .05) .Conclusion PDSW can improve the heat tolerance of normal liver cells .When combine with heat ,it can obviously inhibit the growth of human liver cancer QGY‐7703 cells .

Objective To explore the effects of physiological deep-sea water(PDSW) on hyperthermal tolerance of Kunming (KM ) mice in the 45 .0 ℃ environment .Methods Deep-sea water from the south Chinese sea was processed ,and the metallic ele-ments dissolved in the DSW were analysed .The mice were randomly divided into 2 groups :the control group received tap water ;the experimental group treated with PDSW for 15 d .And then the mice were fed in the 45 .0 ℃ conditions .The survival time and histo-morphometric analyses of the brain ,lung ,heart ,liver and kidney were investigated .Results The survival time in PDSW-fed group was significantly longer than that of the control group (P< 0 .05) .Moreover ,histomorphometric analyses showed that PDSW could protect the brain ,lung ,heart ,liver and kidney of KM mice from the 45 .0 ℃ conditions .The results of western blot revealed that ex-pression of HSP72 of liver tissues for PDSW-fed group substantially increased ,when compared with the control mice(P< 0 .05) . Conclusion PDSW could improve hyperthermal tolerance of KM mice ,which maybe in the relation with expression of HSP72 pro-moted by PDSW .