Adult ; Aged ; Aged, 80 and over ; Case-Control Studies ; Female ; Humans ; Male ; Middle Aged ; Multiple Myeloma ; blood ; diagnosis ; therapy ; Phosphopyruvate Hydratase ; blood ; Prognosis

Objective To investigate the methods and results of reverse island flap of the adjacent digit pedicled with the Y-V vascular of digital artery by anastomosis of superficial veins for repairing soft tissue defects of the fingers.Methods From March 2009 to June 2011,twenty cases with soft tissue defect distal to the proximal interphalangeal join of fingers were treated by reverse island flap of the adjacent digit pedicled with the Y-V vascular of digital artery by anastomosis of superficial veins.There were 12 cases of the index finger,eight of middle finger,the largest area of the flaps was 4.5 cm × 3.5 cm,and the smallest area was 3.5 cm × 2.5 cm,an average of the pedical length was 4.0 cm.All cases anastomosis one superficial vein,fourteen cases suture dorsal digital nerve,and the donor area covered with full-thickness skin graft.Results All flaps survived.Postoperative follow-up time ranged from 8 to 16 months,the appearance and texture of the flaps were excellent,the flaps with suture nerves,the two-point discrimination was 7 mm to 9 mm,the other flaps that the nerves were disconnected.The sensation of the flaps recovered to S2-S3,no morbidity of the donor fingers occurred.Conclusion Reverse island flap of the adjacent digit pedicled with the Y-V vascular of digital artery by anastomosis of superficial veins can form a longer vascular pedicle,to repair the soft tissue defect distal to the proximal interphalangeal joint,through anastomoses superficial venous can reduce the flap venous pressure obviously,improve the survival quality of the flap,the effect is satisfacted.

Objective To investigate the method and result of repairing multi-fingers soft tissue defects using the dorsal metacarpal flaps with cutaneous branches as pedicle.Methods From February,2010 to January,2013,9 patients with multi-fingers tissue defects were treated with the 2nd,3rd,4th dorsal metacarpal flaps with cutaneous branches as pedicles.The area of flaps ranged from 1.2 cm × 2.5 cm to 2.5 cm × 5.0 cm.The donor sites were sutured with full thick skin graft.Results All flaps survived.After a followed-up of 8 months to 24 months(average 12 months),the texture and shape of the flaps were good and non-bloated.The flap sensibility as sessment were S3-S3+.The two-point discrimination testing were 10 to 13 mm (average 11.6 mm).The TAM score of range of motion was 60％ to 75％ of the healthy side.The skin graft of donor site were soft.Conclusion Procedure of dorsal metacarpal flaps with cutaneous branches as pedicles easy is a good method to repaire the soft tissue defects of muhi-fingers.

Objective To explore the clinical outcome of using modified great toe wrap-around flap to reconstruct degloved thumb and fingers.Methods Eighteen patients were involved.Based on different types of injury,four procedures were carried on for reconstructing degloved thumb and fingers:①Unilateral modified great toe wrap-around flap to reconstruct 9 degloved thumbs of distal proximal level and 3 degloved fingers of proximal interphalangeal joint level.②Unilateral modified great toe wrap-around flap with second toe medial flap to reconstruct 2 total degloved fingers.③Bilateral modified great toe wrap-around flap to reconstruct 2 thumbs.④Bilateral modified great toe wrap-around flap and second toe medial flap with neurolized super thin anterolateral thigh flap to reconstruct 12 degloved fingers.This wrap-around flap carried with entire nail.A triangle flap was reserved at medial plantar of great toe.Results All free flaps were survived in one stage.Fifteen patients were followed up for 8 to 25 months.The contour of reconstructed digit was as same as contralateral digit with satisfactory motion arc and sensation.There was no extensive scar in donor toe.The width of medial plantar triangle flap increased significantly.All patients could walking,running,jumping without restricted.Conclusions With reconstructed by modified great toe wrap-around flap,degloved thumb or finger can be promised with excellent contour and function outcome.In the meantime,the loss of donor foot can be expected to minimal.This procedure is one of the best ways for reconstructing degloved thumb and finger.

OBJECTIVETo study the effect of transforming growth factor-β activated kinase-1 (TAK1) gene silencing on the proliferation and apoptosis of Kasumi-1 cells induced by arsenic trioxide (As₂O₃).

METHODSAcute myeloid leukemia with t(8;21) cell line Kasumi-1 cells were treated with As₂O₃ or in combination with TAK1 siRNA interference technology. The experiment was divided into four groups: Kasumi-1 cells without any treatment, TAK1 specific siRNA transfection alone, Kasumi-1 cells treated with different concentration of As₂O₃, TAK1siRNA transfection combined with As₂O₃. CCK-8 was used to detect the cell viability. The expression of phosphorylated c-Jun N-terminal kinase (P-JNK) was determined by Western Blot. Cell apoptosis and growth were examined by morphological and colony formation assay.

RESULTSAfter Kasumi-1 cells were treated with As₂O₃, the rate of cell inhibition was concentration-dependent, and the 50% inhibitory concentration was 3.5 μmol/L. The highest expression level of P-JNK appeared in 30 minutes after cells were treated with As₂O₃. The apoptosis rates of Kasumi-1 cells without any treatment, TAK1 siRNA interference alone group, As₂O₃ alone group and the combined group were (5.02 ± 1.13)%, (6.18 ± 0.28)%, (48.33 ± 2.70)% and (86.07 ± 2.21)%; colony formation rates were (73.83 ± 2.78)%, (76.03 ± 1.46)%, (55.07 ± 1.50)% and (22.20 ± 1.15)%; apoptosis rate of TAK1 siRNA group and the untreated group has no significant difference (P = 0.052); colony formation rate between TAk1 siRNA group and the untreated group has no significant difference (P = 0.179), but the difference in other groups was significant (P = 0.000).

CONCLUSIONSilencing the expression of TAK1 can enhance the anti-proliferative and pro-apoptotic effect of As₂O₃ on Kasumi-1 cells, and its mechanism may be through the TAK1 downstream JNK signal pathway.

Apoptosis ; drug effects ; Arsenicals ; pharmacology ; Cell Line, Tumor ; Humans ; JNK Mitogen-Activated Protein Kinases ; metabolism ; Leukemia, Myeloid, Acute ; enzymology ; pathology ; MAP Kinase Kinase Kinases ; genetics ; metabolism ; Oxides ; pharmacology ; RNA Interference ; RNA, Small Interfering ; genetics ; Signal Transduction

Adult ; Child ; Eosinophilia ; complications ; Female ; Hematologic Neoplasms ; complications ; Humans ; Male ; Middle Aged

OBJECTIVETo assess the frequencies and prognostic significance of the isocitrate dehydrogenase 1 and 2 (IDH1 and IDH2) mutations in acute myeloid leukemia (AML) and to explore their relevance to clinical, cytogenetic and molecular feature.

METHODSGenomic DNA from 96 newly diagnosed AML patients from Sep. 2009 to Jan. 2011 was screened by RT-PCR and sequencing for IDH1 and 1DH2 mutation.

RESULTSThe prevalence of IDH1 (p. P127 and p. I130) and IDH2 mutations (p. R140) was 14.6% (14/ 96) and 2.17% (2/96) respectively. The IDH1 mutations of p. P127 and p. I130 were not reported so far in literature. Of 14 IDH1 mutation patients, 10 were with normal karyotype and the differences had statistical significance (P=0.021). Two patients with IDH2 mutation were also with normal karyotype. IDH2 mutations were in older patients at diagnosis. Patients with IDH mutation had higher white blood cell counts, lower platelet counts, expression of HLA-DR, CD34, CD33 and CD13, lower remission rate and higher relapse rate.

CONCLUSIONIDH mutation is recurring genetic change in AML and indicates poor prognosis.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; DNA Mutational Analysis ; Female ; Humans ; Isocitrate Dehydrogenase ; genetics ; Karyotype ; Leukemia, Myeloid, Acute ; diagnosis ; genetics ; Male ; Middle Aged ; Mutation ; Prognosis ; Young Adult

This study was aimed to evaluate the frequencies and prognostic significance of the nucleophosmin 1 (NPM1) mutation, the fms-like tyrosine kinase 3 (FLT3) mutation and c-KIT mutation in acute myeloid leukemia (AML) and to explore their relevance to clinical characteristics, cytogenetics and survival. Genomic DNA from 78 newly diagnosed AML from August 2010 to October 2012 was screened by PCR and sequencing or capillary electrophoresis (CE) for NPM1, FLT3 and c-KIT mutations. The results showed that the incidence of NPM1 mutation was 14.1% in AML patients and 26.7% in normal karyotype AML patients. NPM1 mutant cases were significantly associated with old age (P < 0.05), high peripheral white cell count and platelet counts (P < 0.05) and low expression of CD34 (P < 0.05), but no statistic difference was found in sex, percentage of bone marrow blasts, Hb, expression of CD117 and HLA-DR, complete remission rate, overall survival and relapse rate (P > 0.05). The prevalences of FLT3-ITD and FLT3-TKD mutations were 11.5% (9/78) and 3.8% (3/78) respectively, and no one patient has both of the two mutations. Patients with FLT3-ITD mutation had higher white blood cell counts and percentage of in bone marrow blasts (P < 0.05), and lower overall survival (P < 0.05), more relative to normal karyotype (P < 0.05), while no statistic difference was found in sex, age, platelet count, Hb level, complete remission rate and relapse rate (P > 0.05). No statistic analysis was performed due to the cases of less FLT3-TKD mutation. C-KIT mutation accounts for 7.7% (6/78). Patients with C-KIT mutation had a higher percentage in abnormal karyotype (P < 0.05), and higher relapse rate (P < 0.05), and lower overall survival, whereas no statistic difference was found in sex, age, percentage of bone marrow blasts, peripheral blood cell count, complete remission rate (P > 0.05). It is concluded that the detection of NPM1, FLT3 and C-KIT mutations may contribute to guiding treatment and evaluating prognosis of patients with AML.
Adolescent ; Adult ; Aged ; Child ; Child, Preschool ; Female ; Humans ; Karyotyping ; Leukemia, Myeloid, Acute ; diagnosis ; genetics ; Male ; Middle Aged ; Mutation ; Nuclear Proteins ; genetics ; Prognosis ; Proto-Oncogene Proteins c-kit ; genetics ; Young Adult ; fms-Like Tyrosine Kinase 3 ; genetics

Objective To study the clinical application of the 2 flaps based on the proximal and distal perfo-rator from ulnar artery in the repair of defect of 2 fingers and evaluate the outcome of the procedures. Methods From January,2014 to January,2015, 8 cases with skin and soft tissue defects of 2 fingers were treated simultaneous-ly with the distal and proximal perforator flap of ulnar artery in ipsilateral limb. The area of the distal flaps ranged from 2.5 cm×4.5 cm to 4.0 cm×6.5 cm. The area of the proximal flaps ranged from 3.5 cm×4.5 cm to 4.5 cm×6.5 cm. The followed-up were performed at 3rd, 6th and 12th months post-operation. The patients' satisfaction of the appear-ance and function of repaired finger and working situation were investigated. The postoperatively pain prick , touch and temperature sensation of the flaps were examined. Total active range of motion (TAM) of the finger points were measured. Results All flaps survived. Two flaps got plastic surgery at 5 months post-operation. The pain , tempera-ture and light touch sensation were restored 12 months after the surgery. Five patients returned to work again 12 months after the operation. Conclusion The distal and proximal perforator flap has their own characteristics, can be used simultaneously to repair skin and soft tissue defects of the two fingers.