Gastric cancer is one of the most commonly seen malignant tumors,and is the fourth leading cause of morbidity and second leading cause of mortality among malignancies worldwide. The genesis of gastric cancer is the result of interaction between genetic and environmental factors,and is a multi-factor and multi-step carcinogenesis. As one of the most important members in the heat shock protein(HSP)family,HSP70 plays a molecular chaperone role,and is involved in body specific immunity and innate immunity. Studies have demonstrated that over expression of HSP70 often correlates with the genesis and development of gastric cancer. This article reviewed the advances in study on relationship between HSP70 and gastric cancer.

Objective:To explore the clinical pathological characteristics and improve the recognition in the diagnosis and treatment of incidental (stage T1a -T1b)prostate cancer.Methods:Seven hundred and seventy-one patients who underwent TURP from May 2004 to September 2013 were analyzed retro-spectively.In our institution,TURP specimens should be totally submitted in an extensive sampling method.The tumor area was outlined by estimation of an experienced genitourinary pathologist and calcu-lated by the image analysis system software (Image J 1.47 h).The tumor area was then multiplied by the thickness of tissue.The total sum of all tumor volume was the estimated tumor volume.The clinical and pathological factors,follow-up results were obtained and we aimed to collect information about the period of watchful waiting (WW),PSA progression status,intervention status during the follow-up,the reason for intervention on WW and the type of intervention.Results:The average age of 771 patients was (71.3 ±5.9)years old,and the average BMI was (23.9 ±3.1)kg/m2 ,preoperative average tPSA was (4.4 ±2.8)μg/L.Eighty-six (11.2%)cases of incidental prostate cancer were detected.The patients in T1a group (77 cases,89.5%)had tumor volumes of (12.3 ±12.6)mm3 ,and the patients in T1b group had tumor volumes of (105.1 ±41.8)mm3 .The range of tumor volume was 0.4 -180.2 mm3 . The volume of all the 86 cases was less than 500 mm3 as the threshold of insignificant cancer.All the pa-tients were managed by WW.The mean follow-up time was 88.9 (27.9 -150.1)months.The Gleason score was <7 in 79 patients,and ≥7 in 7 patients.There was no significant difference in age,preopera-tive tPSA,preoperative PSAD,postoperative tPSA,prostate volume and TURP resection between T1a group and T1b group (P >0.05).Among 84 patients without follow-up losts,PSA progression occurred in 5 patients.One T1a patient underwent radical prostatectomy (RP)as an intervention,and 3 patients underwent hormone therapy.One patient in T1b group underwent radiotherapy for PSA progression and one was treated because of patient preference without evidence of disease progression.There were no pa-tients who died due to prostate cancer.Conclusion:Eighty-six (11.2%)cases of incidental prostate cancer were detected.The tumor volume of all the cases was insignificant cancer.The clinical outcomes of IPCa were satisfactory with the initial treatment of WW in the Chinese population.

OBJECTIVE: To establish a fluorescent multiple amplification system of 16S rRNA and Cytb genes located in mitochondrial DNA for species identification. METHODS: A pair of primers of 16S rRNA gene and Cytb gene of the mitochondrial DNA was designed with the software Primer 5.0 to construct a multiple amplification system. The amplified products from human and five species of animals, including cattle, pig, dog, chicken and grass carp were analyzed by 310 Genetic Analyzer. RESULTS: The amplified products of these samples showed two peaks. The common one was 358bp and the specific one different in unique species was between 231bp and 256bp. CONCLUSION The multiplex amplification system can exactly distinguish the species of human from five common animals.
Animals ; Base Sequence ; Carps ; Cattle ; Chickens ; Cytochromes b/genetics* ; DNA, Mitochondrial/genetics* ; Dogs ; Female ; Forensic Genetics ; Gene Amplification ; Humans ; Male ; Molecular Sequence Data ; RNA, Ribosomal, 16S/genetics* ; Species Specificity ; Swine

OBJECTIVETo research many clinical data of nonunion cases and discover the reasons for low capacity of bone growth.

METHODSFrom October 1999 to April 2009,the source material of 280 nonunion cases were conducted and followed up. The data of the study included 230 males and 50 females,with an average age of 39.4 years old ranging from 19 to 62 years. The fracture position was femur in 129 cases,tibia in 83 cases,humerus in 47 cases, feet radius bone in 21 cases, the ratio was 46:29.6:16.8:7.5. The survey included primary injury process,damage degree and the effect of first treatment,hospital level of first treatment,timing of surgery for the first time, the early callus growth conditions and whether there were obvious technical errors.

RESULTSThere were 129 femoral nonunion cases with complete data,121 cases derived from closed fractures, 8 cases from open fractures; 111 cases was aseptic nonunion. 90% of femoral aseptic nonunion had no obvious callus growth, 80% of first treatment performed intraday surgical internal fixation, 10% were undergone operation within three days and 90% was early surgery totally.

CONCLUSIONLow quality of bone callus growth is the main reason for current nonunion and the early surgical fixation has much to do with low quality of bone callus growth.

Adult ; Female ; Femoral Fractures ; etiology ; surgery ; Fracture Fixation ; Fractures, Ununited ; etiology ; surgery ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Tibial Fractures ; etiology ; surgery

Objective To investigate the spectrum and antimicrobial resistance of major pathogens causing nosocomial infections in China, 2016. Methods Non-duplicated nosocomial cases as well as pathogens causing bloodstream infections ( BSI) , hospital-acquired pneumonia ( HAP) and intra-abdominal infections ( IAI ) from 12 teaching hospitals across China were collected. The minimum inhibitory concentrations (MICs) of important clinical common strains were determined by agar dilution method or broth microdilution method. The CLSI M100-S27 criteria was used for interpretation. Data were analyzed by using WHONET-5. 6 software. Results A total of 2060 cases were collected, including 894 cases from BSI, 630 cases from HAP and 536 cases from IAI. The MICs of 1896 important clinical common strains were determined. Escherichia coli and Klebsiella pneumoniae were the most prevalent pathogens causing BSI and IAI, while Acinetobacter baumanii and Pseudomonas aeruginosa were dominated in HAP. All Staphylococcus aureus were susceptible to tigecycline, linezolid, daptomycin and glycopeptides. Methicillin-resistant S. aureus accounted for 44. 4％ ( 75/169 ) of all the S. aureus. The rate of methicillin-resistant coagulase-negative staphylococci was 80. 9％ ( 72/89 ) . No Enterococcus strains were found resistant to tigecycline, linezolid or daptomycin. Vacomycin resistant enterococcus was found in Enterococcus faecium, accounting for 1. 8％ ( 2/111 ) of all E. faecium strains. Tigecycline, meropenem, amikacin, imipenem, and polymyxin B exhibited high potency against Enterobacteriaceae and the susceptibility rates were 96. 6％(865/895), 94. 3％ (859/911), 94. 2％ (858/911), 94. 1％ (857/911), and 91. 6％ (820/895), respectively. The prevalence of extended-spectrum β-lactamase was 58. 4％ ( 263/450 ) in E. coli and 28. 6％ ( 84/294 ) in K. pneumonia. The rate of carbapenem resistant K. pneumonia and E. coli was 15. 3％ ( 45/294 ) and 1. 8％ ( 8/450 ) , respectively. The percentage of polymyxin B resistant K. pneumonia and E. coli was 4. 1％ ( 12/294 ) and 4. 4％ ( 20/450 ) , respectively. The rate of tigecycline resistant K. pneumonia and E. coli was 2. 4％ ( 7/294 ) and 0. 2％ ( 1/450 ) , respectively. A. baumanii showed low susceptibility to the antimicrobial agents except tigecycline ( 91. 4％, 235/257 ) and polymyxin B (100％, 257/257). The rate of carbapenem resistant A. baumanii was 80. 5％ (207/257). The rate of carbapenem resistant P. aeruginosa was 31. 7％ ( 59/186 ) . Polymyxin B and amikacin demonstrated high antibacterial activity against P. aeruginosa with susceptility rate of 100％ ( 186/186 ) and 90. 9％ ( 169/186), respectively. Conclusions Nosocomial pathogens showed high susceptibilities against tigecycline and polymyxin B. Antimicrobial resistance in A. baumannii is a serious problem. The prevalence of carbapenem-resistant Enterobacteriaceae and polymyxin B resistant Enterobacteriaceae has increased, which should be monitored continuously in China.

[Objective]To explore the correlations between different indices of lipoprotein cholesterol and apolipopro-tein of coronary heart disease(CHD)patients,especially that between low density lipoprotein cholesterol(LDL-C)and high density lipoprotein cholesterol(HDL-C)and that between apolipoprotein A1(apoA1)and apolipoprotein B100 (apoB100),as well as the correlations between these indices,indices ratios and the severity of coronary artery lesion.[Methods]301 coronary heart disease patients hospitalized to accept percutaneous coronary intervention(PCI)in the Third Affiliated Hospital of Sun Yat-sen University during 2013-2014 were recruited in the study. Fasting serum lipid indices including triglycerides(TG),total cholesterol(TC),LDL-C,HDL-C,apoA1 and apoB100 were examined before surgery.Gensini score was calculated to evaluate the severity of coronary artery lesion. 153 patients whose Gensini score was less than 50 were assigned to Group A,while 148 patients with Gensini score greater than or equal 50 were distributed to Group B.[Results]Positive correlations were found between LDL-C and HDL-C(r=0.161,P=0.005), apoA1 and apoB100(r=0.358,P<0.001),apoB100 and LDL-C(r=0.487,P<0.001),apoA1 and LDL-C(r=0.178, P=0.002)by linear correlation analysis. No significant correlation was found between apoB100 and HDL-C. None of LDL-C,HDL-C,TC was correlated with Gensini score. However,LDL-C/HDL-C ratio was positively correlated with Gensini score(r=0.148,P=0.01). The results showed no significant correlations between apoB100,apoB100/apo A1 ratio and Gensini score but negative correlation between apoA1 and Gensini score(r=-0.129,P=0.025). The positive correlation between HDL-C/LDL-C ratio and Gensini score was still valid after multi-factors adjustment (β=5.071,P=0.018).[Conclusion]Of patients with coronary heart disease,there exist some correlations between LDL-C and HDL-C,apoA1 and apoB100,while the correlation between LDL-C and HDL-C is relatively weak.The LDL-C/HDL-C ratio,weakly positively correlated with the severity of coronary artery lesion,is a risk factor of coronary artery lesion,while the level of apoA1,negatively correlated with the severity of coronary artery lesion,could play a protective role.

OBJECTIVE: To detect potential mutation in a Chinese pedigree affected with split hand/split foot malformation (SHFM). METHODS: The patients were screened for genome-wide copy number variations with single nucleotide polymorphism (SNP) microarray. Copy number variations were verified by real-time fluorescence quantitative PCR. RESULTS: There were 3 SHFM patients from three generations, which conformed to an autosomal dominant inheritance. SNP microarray assay revealed that all patients have carried a 0.34 Mb duplication in 10q24.31-q24.32 (102 993 649-103 333 271) encompassing the BTRC and DPCD genes. The result was verified by real-time fluorescence quantitative PCR, confirming that the duplication has co-segregated with the SHFM phenotype in the pedigree. CONCLUSION The 10q24.31-q24.32 duplication probably underlies the pathogenesis of SHFM in this pedigree. Tiny copy number variations can result in diseases featuring autosomal dominant inheritance.
Asian Continental Ancestry Group ; China ; Chromosome Duplication ; Chromosomes, Human, Pair 10 ; genetics ; DNA Copy Number Variations ; Foot Deformities, Congenital ; genetics ; Hand Deformities, Congenital ; genetics ; Humans ; Mutation ; Pedigree ; Polymorphism, Single Nucleotide

OBJECTIVEAllogeneic bone marrow transplantation has been established as a standard method for the treatment of a range of malignant and non-malignant hematologic diseases in children. Unfortunately, fewer than 30% of patients have a human leukocyte antigen (HLA)-matched sibling. Advances in our understanding of the HLA system and the development of large international donor registries encourage the increasing use of unrelated donors as an alternative source of stem cells. The purpose of this study was to evaluate the clinical efficacy and safety of unrelated donor allogeneic bone marrow transplantation (URD-BMT) for the treatment of childhood leukemia.

METHODSSix patients with leukemia received URD-BMT. Two of them suffered from chronic myeloid leukemia (CML), 3 suffered from acute lymphocytic leukemia (ALL) and 1 suffered from acute promyelocytic leukemia (APL) (CR2). All cases were facilitated by Tzu Chi Marrow Donor Registry (TCTMDR). The high resolution DNA test for classIand II was carried out in HLA typing of all donor-receiver pairs. HLA allele matched in three cases, mismatched with one locus in two cases and with two loci in one case. All patients were prepared with cyclophosphamide (CY) 60 mg/kg/day for 2 days (total dose 120 mg/kg) and busulfan (Bu) 1 mg/kg x 4/day for 4 days (total dose 16 mg/kg). Mycophenolate mofetil (MMF), CsA and MTX were given to prevent acute graft-versus-host-disease (aGVHD). CsA of 3 mg/kg/d was continuously given by i.v. infusion, and then 6mg/kg/d by oral. The blood CsA concentration was 200 - 300 ng/ml. MTX was given at the dosage of 15 mg/m(2) on d 1 and 10 mg/m(2) on d 3, 6,9 or 11. MMF was given at the dosage of 0.25 - 0.5 g/d from day 0 to day 120. Prostaglandin E1 was given to prevent the hepatic veno-occlusive disease (VOD), Ganciclovir was used to prevent CMV infection until the CMV antigenemia became negative.

RESULTSAnalysis of DNA short tandem repeats showed total engraftment of donor marrow after transplantation in all cases. The median time when granulocyte exceeded 0.5 x 10(9)/L was 14.5 (13 - 18) days, platelets exceeded 20 x 10(9)/L was 16 (14 - 23) days. The acute GVHD grade II-IV occurred in 2 of 6 (33.3%) patients. There were 3 cases with chronic GVHD and none of them developed with the extensive chronic GVHD. All patients were alive in disease-free situation now with median follow-up 412 (187 - 1338) days.

CONCLUSIONURD-BMT is an effective method for the treatment of childhood leukemia.

Bone Marrow Transplantation ; Child ; Humans ; Immunosuppressive Agents ; therapeutic use ; Leukemia ; therapy ; Tissue Donors ; Transplantation, Homologous ; Treatment Outcome

OBJECTIVETo compare the clinical outcomes between HLA allele matched (HLA-M) and 1 approximately 2 alleles disparity mismatched (HLA-mis) unrelated allogeneic bone marrow transplantation (URD-BMT).

METHODSThirty-nine patients received HLA-M and 21 received HLA-mis URD-BMT for the treatment of acute leukemia, chronic myeloid leukemia in chronic phase (CP) and myelodysplastic syndromes (MDS) in our hospital between November 1998 and December 2002. Conditioning regimen was Bu 16 mg/kg plus CTX 120 mg/kg, and mycophenolate mofetil (MMF), CsA and MTX were given to prevent aGVHD.

RESULTSThirty-eight of the HLA-M group and 18 of the HLA-mis group were engrafted successfully. The median follow-up duration was 11 (2.5 - 52.0) months for HLA-M group and 9 (2 - 46) months for HLA-mis group. The 3-year probabilities of disease-free survival (DFS) for HLA-M and HLA-mis group were (79.2 +/- 7.1)% and (45.8 +/- 15.5)%, respectively (P < 0.05). Grade II - IV aGVHD occurred in 10 (26.3%) patients in HLA-M group and 6 (33.3%) in HLA-mis group, respectively (P > 0.05).

CONCLUSIONURD-BMT is an effective modality for the treatment of leukemia and MDS. The outcome after URD-BMT can be optimized by matching the HLA-A, B and DR alleles between the donor and recipient.

Adolescent ; Adult ; Alleles ; Bone Marrow Transplantation ; Child ; Disease-Free Survival ; Female ; Histocompatibility Testing ; Humans ; Leukemia ; mortality ; therapy ; Male ; Middle Aged ; Myelodysplastic Syndromes ; mortality ; therapy ; Transplantation, Homologous