Objective To study the curative effect and characteristics of all -transretinoic acid (ATRA) and arsenic acid (As2 O3 )combination chemotherapy for acute promyelocytic leukemia (APL).Methods ATRA (30 -60mg/d),As2 O3 (0.1%As2 O3 d1 -28),chemotherapy(anthracycline -based chemotherapy regimens and homoharringtonine -based chemotherapy regimens or high -doses of cytosine arabinoside and small -doses of metho-trexate)were used alternately 4 -5 cycles.Results 12 cases had complete response(CR),CR rate was 100%,first cases and relapse cases all got CR,the median time needed 30 days to get CR.Follow -up deadline,all cases 10 year disease -free survival (DFS )rate was 100%,all reexamination minimal residual disease (MRD)was negative. Conclusion Using this method to treat adult APL,the CR rate is high,has less adverse reaction,and did not produce resistance phenomenon.It can be used for APL consolidation and maintenance therapy.This is one of the ways that can be recommended in the treatment.

This study is to investigate whether naked plasmid DNA can effectively transfect lung cancer related cells and express human kallistatin, an endogenous protein that inhibits angiogenesis and tumor growth, and to explore the biological activity of the low-level expressed kallistatin to lung cancer in vitro and in vivo. The plasmids were delivered with Lipofectamine 2000 to transfect various lung cancer related cells. Kal expression was determined by ELISA. The biological effects of Kal expression on proliferation, migration and apoptosis rate of the cells were examined. In subcutaneous NCI-H446 xenograft model, pKal was injected directly into tumors, the changes of CD34, Ki-67 and E-cadherin expression were detected with immunohistochemical assay, the tumor apoptosis was analyzed with TUNEL assay. Both the endothelial cell and lung cancer cells could express kallistatin after plasmid transfection. The proliferation and migration of human umbilical vein endothelial cells were inhibited, but the apoptosis rate was not affected. The proliferation rates of all the three tested lung cancer cells, such as NCI-H446, NCI-H460 and A549, were inhibited, and their apoptosis rates were enhanced, but different cells behaved differently. In subcutaneous NCI-H446 xenograft model, intratumor injection of pKal inhibited the growth of lung cancer by reducing angiogenesis and proliferation of tumor cells. In conclusion, this study demonstrated the efficacy of plasmid-mediated expression of kallistatin to lung cancer related cells, thus providing a basis for their clinical application in the treatment of lung cancer.

[Objective]To evaluate diagnostic and the therapeutic options of osteoid osteoma of the spine associated with scoliosis. [Methods]Nine patients with osteoid osteoma of the spine were treated from 1997 to 2006.All patients presented with spine deformity as their main complaint at the first consultation.The mean age was 15.2 years (range 8-21 years).Two patients had their osteoid osteoma in the thoracic area,2 in the thorcolumbar area ,and 5 in the lumbar area.Three were well controlled after long term administration of nonsteroidal anti-inflammatory drugs,and the other 6 were treated with en bloc excision.[Results]All the 6 patients with en bloc excision of the tumor were pain-free post-operatively.The scoliotic curve disappeared or was less than 15 degrees in 5,but the structural curve persisted in 4.[Conclusion]The spinal osteoid osteoma should be suspected when back pain or painful scoliosis occurs in adolescents.Computed tomography is necessary to evaluate the location and features of the lesion.En bloc excision of the tumor can be suggested if the symptoms are not well relieved with nonsteroidal anti-inflammatory drugs.

Objective To study the clinical value of grafting the musculocutaneous flap with uncovered in the special region to treat the open fracture and infection of tibia. Methods Twenty-eight patients including 19 males and 9 females with ankle and leg tissue defect were applied to graft the musculocutaneous flap with uncovered in the special region from July 2007 to January 2010. The tissue defeat in proximal part of the tibia were 6 cases, and 21 cases in middle and distal part, 1 case almost in whole part of the tibia. The bone occurred a defeat and infection in 23 cases, the bone necrosis occurred in 5 cases. The patients treated with iliac bone flap were 5 cases, anterolateral thigh flap were 21 cases, anterolateral thigh flap combined with fibula flap were 2 cases, the flap were transplanted by anastomosis in 26 cases. Results The tissue grafting were all survival and the survival rate were 100%. The callus formation were appear after operation from 3 to 6 months, and necrosis bone tissue almost were abstracted about 6 months. The wound were primary closure and not happened infection in 26 cases, the wound appeared infection under deep tissue in 2 cased,but being cured after 6 months by operation. The 21 patients were followed up from 3 months to one and helf year. The long-term was satisfaction and the donor area was perfect. Compared with closed graft, its area of the flap was small and need spend little time to treat the repair the defeat, and harness to recover the healthy of body and mind, also decrease the chance of infection in deep tissue. Conclusion It is demonstrated that grafting the tissue flap with uncovered in the special region is an ideal approach to treat the open fracture and infection of tibia.

Breast ; radiation effects ; Breast Neoplasms ; pathology ; radiotherapy ; surgery ; Female ; Humans ; Lymphatic Metastasis ; Mastectomy ; Mastectomy, Segmental

OBJECTIVE: To prepare Nimodipine hydrogel patch and to investigate the effects of different factors on the in vitro percutaneous permeability of nimodipine.METHODS: Nimodipine hydrogel patch was prepared with sodium carboxymethylcellulose as matrix.The permeation flux of nimodipine through excised mice skin in vitro was determined using Franz diffusion cell.The content of nimodipine was measured by HPLC.Accumulative transdermal delivery of nimodipine(Q) and transdermal speed constant(Js) were calculated.The loading amounts,type of transdermal enhancer(menthol,azone and oleic acid) and their content were optimized with the value of Q and Js as index.RESULTS: The best loading amount was 4 mg?cm-2.Different transdermal enhancers were found to increase the percutaneous permeability of nimodipine.5% oleic acid had the best penetration enhancing effect.The permeation of samples containing 5% oleic acid was in accordance with the zero-order kinetics.Nimodipine hydrogel transdermal patch presented high Js of 28.10 ?g?cm-2?h-1 and Q of 342.58 ?g?cm-2 in 12 h.CONCLUSION: Nimodipine hydrogel patch has good potential for transdermal delivery.

Objective To evaluate the efficacy and safety of direct stenting technique in emergent percutaneous coronary intervention(PCI)for pa?tients with acute myocardial infarction(AMI). Methods Totally 460 consecutive patients with acute myocardial infarction who underwent emergent PCI during August 2010 to July 2013 were involved,among whom 346 patients were assigned to the control group(traditional balloon dilation and stenting),114 patients were assigned to the experiment group(direct stenting). The safety and efficacy of direct stenting technique was observed. Results In the control group,7 cases had no reflow during operation,2 cases had reflow after the pre?expansion and 5 cases after stent implanta?tion,no similar cases in the experiment group(P=0.125 9). The follow?ups showed the control group had 2 cases of major adverse cardiac events including 1 case of acute stent thrombosis who required urgent revascularization,and 1 case of cardiac death at four days after operation;the experi?ment group had 1 case of stent thrombosis,there was no statistically significant difference(P=0.730 7). Conclusion Direct stenting technique may be performed selectively for certain coronary diseases when performing emergent PCI for AMI.

Objective To determine the effect of endomorphin (EM) on colonic electromyography activity and investigate the pathogenesis of slow transit constipation (STC). Methods An experimental rat model of slow transit constipation was constructed by contract laxatives mixed with the feed. The changes of colonic electromyography and reaction to endomorphin 1 and endomorphin 2 were examined. Results Compared with the control group, the frequency and amplitude of slow wave in cathartic colon rats were decreased significantly. Endomorphin 1 and endomorphin 2 significantly decreased the amplitudes of slow wave, but did not change the frequencies of slow wave. The effect of endomorphin 1 was more pronounced than that of endomorphin 2, which could be reversed by the morphine antagonist Naloxone in concentration-dependent manner. Endomorphin could not block the stimulating effect of acetylcholine. Conclusions Endomorphin can influence the colonic electromyography activity and intestine motility of cathartic colon rats, and may be involved in the pathologic mechanism of slow transit constipation.

Objective: To identify the most appropriate meteorological variable for forecasting the health risk of high temperatures. Methods: The surveillance on causes of death, meteorological data and surveillance on air quality among registered residents in Ningbo City, Zhejiang Province during the period between May and October from 2013 to 2019 were collected. The association models of daily minimum temperature, average daily temperature, daily maximum temperature, daily minimum heat index, average daily heat index, daily maximum heat index, average daily apparent temperature and torridity index with deaths and years of life lost (YLL) were created using time series analysis and distributed lag non-linear models, and the model fitting effect was evaluated using the minimum Akaike information criterion (AIC) procedure. The most appropriate meteorological variable for forecasting gender-, age- and mortality-specific health risks of high temperatures was identified. Results: A total of 120 628 deaths were reported during the study period, with daily deaths of 94 cases, and daily YLL rate of 19.74 person-years/105. Except for daily minimum heat index and torridity index, the exposure-response relationships between other six meteorological variables and deaths and overall YLL rate all appeared a “J” shape. The lowest AIC values and the optimal model fitting effects were measured for the association models between average daily temperature and whole populations, females, subjects at ages of 65 years and older, and deaths and YLL rates due to circulatory diseases and respiratory diseases. Conclusion High model fitting effects are observed between average daily temperature and deaths and YLL rates, which are more suitable for forecasting the health risk of high temperature.