The event free survival and overall survival rate of acute lymphoblastic leukemia (ALL)have been improved significantly based on the risk stratify diagnosis and treatment.But there are still some patients suffering therapeutic failure and relapse.With the great development of genome sequencing technology,more and more genetic aberrations behind the refractory and relapse ALL have been identified.Ph-like ALL is charactered with gene expression profile similar to that of BCR-ABL1 positive ALL,involving abnormal activation of cytokine receptor and tyrosine kinase.It has been proved that treatment combined with Tyrosine kinase inhibitors (TKIs) can significantly improve the poor prognosis.Ph-like ALL is one of hot topics during the 56th American Society of Hematology (ASH) annual meeting in 2014.Progression in molecular genetics for Ph-like ALL will be introduced together with the author' s research experience.

Benign and malignant compression fracture of vertebrae are common diseases in clinic. Because their therapies are different,it is important to identify them. At present, MRI is the main means in discriminating benign and malignant compression fracture of vertebrae. Sometimes the change of MRI signal in them is overlap, therefore, it is difficult to diagnose accurately. In the recent years, with the appearance of MRI new technology, people have already applied it to work out the difficulty.

Objective To investigate the effect of treatment for la rg e-sized auricular nevus through split-thickness grafting over perichondrium. Methods In the six cases with large-sized and giant cong enital melanocytic nevi of the auricle, the auricular lesions were radically exc ised in stages, and each time followed by split-thickness skin grafting. The ou tcome was evaluated. Results The grafts completely surviv ed. During the time of follow-up ranging from one to two years, the grafts expe rienced no contraction, and auricular deformity did not occur. Conclu sion Treatment of large-sized auricular nevus through staged split -thickness skin grafting over perichondrium is simple and reliable.

BACKGROUND: Although bone tissue engineering has been developed rapidly, ideal scaffold materials are deficient and the ability of tissue engineered bone constructed in vitro was reported inconsistently.OBJECTIVE: To study the ectopic osteogenesis of the implantation in vitro with composite fully deproteinized bone(CFDB) compounded by autologous red marrow.DESIGN: A randomized controlled study.SETTING: Department of Orthopaedics, the 152 Hospital of Jinan Military Area Command of Chinese PLA; Ward for Retired Cadres, First People's Hospital of Pingdingshan City; Department of Orthopaedics, Chaochuan Mine Hospital of Pingdingshan Coal Industrial Group.MATERIALS: The study was completed in the Department of Orthopaedics,the 152 Hospital of Jinan Militatry Area Command of Chinese PLA. Totally 40 Japanese flap-eared white rabbits of 4 months old of either gender with a body mass from 2.0 kg to 2.5 kg were involved (provided by the Laboratory for Experimental Animals of the 152 Hospital in Pingdingshan city).INTERVENTION: Calf CFDB scaffold materials were compounded by rabbit autologous red marrow after physical and chemical managements, which were then implanted into the thigh muscles of 40 rabbits. The osteogenetic abilities of the materials compounded by autologous red marrow were analyzed at 4 weeks and 8 weeks after operations respectively.ysis of the implanted bone.RESULTS: ALP activities were(63.48 ± 0. 873) and (69. 527 ± 0. 635) IU/L respectively, and the results of osteogenetic quantitative analysis were (2.50 ±0.38) and(4.70 ±0.67) points of rabbits in the study group at week 4 and week 8 respectively. ALP activities were(2.50±0.38) and (4.70 ± 0. 67) IU/L and the results of osteogenetic quantitative analysis were( 1.90 ± 0.54 ) and(3.40 ± 0.54) points of rabbits in the control group at week 4 and week 8 respectively. The results indicated that the osteogenetic ability of the study group was significantly higher than that of the control group at the same time point, and the neogenetic bone increased along with the prolongation of the implantation time.CONCLUSION: CFDB could be applied as scaffold materials for bone tissue engineering, and its osteogenesis increases significantly after being compounded by autologous red marrow.

The detection of JAK2 V617F and CALR mutations,which was first reported in 2005 and 2013,respectively,had greatly improved the diagnosis and treatment of myeloproliferative neoplasms (MPN).Most MPN patients are inclined to thrombophilia,the carrier frequency of JAK2 V617F mutation was also high in patients of various thrombotic events,and the relationship between the two conditions needs further study.The observation of JAK2 V617F mutation in control group and general population also enlightened and changed the understanding about the development of chronic cancer.Research progress in this area will be introduced together with the related reports in the 56th American Society of Hematology annual meeting in 2014.

The efficacy of hematological tumor drugs has shown inter-patient variability. Pharmacogenomics focuses on gene polymorphisms of drug metabolizing enzymes, drug transporters and therapeutic targets and its impact on pharmacokinetics (PK)/pharmacodynamics (PD). Initial dose and adverse reaction can be predicted based on inherited gene polymorphisms, and therapeutic drug monitoring (TDM) also helps to adjust drug dosage in the course of treatment. Thus can achieve rational drug use and personalized medicine, and improve the efficacy and reduce the incidence of adverse drug reactions. This article will introduce the relevant research progress in recent years, and the concept of personalized medication fingerprints is proposed.

Objective To compare selenium content in hair samples of people in Kaschin-Beck disease (KBD) areas and non KBD areas two months after stopping selenium salt in Shaanxi Province,to provide a scientific basis for KBD control and prevention.Methods In September 2012,four historical KBD areas were selected,including Yongshou,Yuyang,Linyou and Nanzheng,four villages were selected as monitoring sites according to the four directions as east,west,south and north in each county.Meanwhile,four non KBD areas were selected,including Wugong,Mizhi,Qishan and Chenggu,which adjacent to the survey counties and were similar to the survey counties in environment and production and living conditions.Four villages were selected as monitoring sites according to the four directions as east,west,south and north in each county.Lianhu District in Xi'an city was selected as a urban non KBD area.Four communities were selected in the east,west,south and north as the monitoring sites.In each monitoring point,hair samples of 8 children aged 7-12 years old (gender balanced) and 8 adults over the age of 16 (gender balanced) were selected to determine the hair selenium.Samples were disposed by wet digestion method,the selenium content was determined by 2,3-diaminonaphthalene fluorescence method.Results A total of 256 hair samples were collected in the four KBD counties,256 hair samples in four non KBD counties,64 hair samples in one urban district.The average of hair selenium in each monitoring point was ≥0.25 mg/kg.Compared the hair selenium content in KBD areas,rural non KBD areas,and urban non KBD areas [(0.40 ±0.23),(0.42 ± 0.28),(0.37 ± 0.38) mg/kg],the differences were not statistically significant (F =0.045,P ＞ 0.05).In KBD areas,the hair selenium content of 37 people was ＜ 0.20 mg/kg,accounting for 14.45％;28 people was 0.20-＜ 0.25 mg/kg,accounting for 10.94％;127 people was 0.25-＜ 0.50 mg/kg,accounting for 49.61％;64 people was ≥ 0.50 mg/kg,accounting for 25.00％.In non KBD areas,the hair selenium content of 67 people was ＜ 0.20 mg/kg,accounting for 20.94％,28 people was 0.20-＜ 0.25 mg/kg,accounting for 8.75％;143 people was 0.25-＜ 0.50 mg/kg,accounting 44.69％;82 people was ≥0.50 mg/kg,accounting for 25.63％.Compared the hair selenium content of children aged 7-12 and adults in KBD areas,rural non KBD areas,and urban non KBD areas [children:(0.45 ± 0.29),(0.47 ± 0.31),(0.33 ± 0.12) mg/kg;adults:(0.41 ± 0.25),(0.37 ± 0.25),(0.40 ± 0.49) mg/kg],the differences were not statistically significant (F =0.007,0.024,all P ＞ 0.05).Compared the hair selenium content in different gender in KBD areas,rural non KBD areas,and urban non KBD areas [maile:(0.43 ± 0.23),(0.43 ± 0.26),(0.40 ± 0.51) mg/kg;female:(0.38 ± 0.22),(0.41 ± 0.31),(0.34 ± 0.18) mg/kg],the differences were not statistically significant (F =0.872,3.589,all P ＞ 0.05).Conclusion Two months after stopping to supply selenium salt in 2012 in Shaanxi Province,the hair selenium content of residents in KBD areas has not dropped significantly.Since this survey is carried out only 2 months after taking the measure,it is necessary to continue to monitor the selenium level in KBD areas.

Telomere and telomerase play important roles in protecting and maintaining the stability and integrity of chromosomes. Telomere and telomerase are closely related with multiple diseases, and their relationship with aging and tumors has become a hot topic in recent years. Relevant reports in the American Society of Hematology Annual Meeting in 2016 will be reviewed together with advances of telomere and telomerase in hematological diseases.

Although tyrosine kinase inhibitors (TKI) have profoundly improved prognosis of patients with chronic myeloid leukemia (CML), it still can not cure CML with high relapse rate when TKI is used alone. Except for effective development of TKI and precise application of the existing TKI,the exploitation of new therapy target, research on treatment for leukemia stem cells and cocktail targeted therapies also provide further inspiration for improving treatment and curing CML. This article will introduce the advances of therapy in CML.

From January 1977 to December 1988, 279 cases of esophageal carcinoma were proved to be stage Ⅰ andⅡ A after operation. Within 5 years of the operation, 103 cases have failed. The failure was closely related to TNM stages. The regional and esophageal bed failure were obviously related to the site of the original lesion. Twelve of these 279 patients recieved postoperative radiotherapy. The incidence of intra-portal recurrence was lower in those who received postoperative radiotherapy than those who did not, although hematogenous metastasis was similar in these two groups. The 5-year survival rate with no evidence of cancer was higher in patients who received postoperative irradiation.