The myelodysplastic syndromes (MDS), which are characterized by the presence of ineffective hematopoiesis and an increased risk of transformation to acute myeloid leukemia (AML), are a group of clonal disorders deriving from damage of the hematopoietic stem/progenitor cells. The 58th American Society of Hematology (ASH) Annual Meeting consists of 5 main subjects, includingchronic myelomonocytic leukemia (CMML) and MDS biology and treatment, higher risk MDS clinical studies, lower risk MDS clinical studies, predisposition and diagnosis of MDS, and prognostic and predictive utility of recurrent somatic mutations in MDS. This article will introduce some highlights of the oral reports in this meeting.

Objective To evaluate operative management of complex hypospadias.Methods Twenty-one cases with complex hypospadias were reviewed.Thiresch procedure at 12 cases were taken.Island scrotal septal flap urethroplasty at 7 cases.Snodgrass procedure at 1 case.Mathieu procedure at 1 case.Results Fifteen cases were satisfied without fistula and stricture.Four cases with fistula,1 case with chordee,urethral meatus stricture in 1 case.Overall,the complication rate was 28.5%.Conclusions Selection of surgical procedure should according to the different case circumstance.It′s essential that reduce separative procedure,protect blood supply and carefully manipulation to improve successful rate.

Halophilic microorganisms play important rules in salt field ecosystem and salt production. In this study, halophilic bacteria and haloarchaea from soils of Lianyungang Taibei and Yancheng Sanwei salt fields were analyzed. The halophilic bacterial and haloarchaeal types from both the soils were similar, but each soil had its distinctive species. A total of 17 halophilic bacteria were identified, among them, Halomonas was found from both the soils, while Pontibacillus and Halobacillus were isolated from Sanwei salt field only. Using uncultured 16S rRNA gene library technology, 13 haloarchaeal soil 16S rRNA genes were identified from both the saline soils. Halobacterium and Haloplanus were found from Taibei salt field, while Halobac- terium, Natronobacterium, Halogeometricum and Haloarcula were identified from Sanwei salt field. Ten haloarchaeal 16S rRNA gene sequences showed 92%~97% identities with the GenBank sequences that ap- pear to represent novel soil haloarchaeal species. This study provides important information that is useful for further investigation and application of halophiles of saline soil fields.

Objective To express the recombinant caspid of genotype 4 hepatitis E virus(HEV) ORF2. Methods HEV recombinant capsid protein D66 was expressed in E. coli, using the ORF2 fragment (aa368-606, obtained from swine bile) of genotype 4 HEV. Results The recombinant capsid proteins D66 self-assemble to be particle with a radius of 13 nm through dimeric form in neutral solution. Coated particles reacted well with sera obtained from patients during acute or recovered phase of HEV infection. Immunofluorescence and immnoblot assay suggested that D66 bound and penetrated HepG2 cell lines, and the process of attachment was blocked by sera collected from patients during acute or recovered phase of HEV infection.Conclusion Recombinant D66 particles simulate the structure at the surface of genotype 4 HEV well and specifically adhere and penetrate the host cells, which lays the foundation for the investigation of the molecular mechanism of genotype 4 HEV infection.

Under the guidance of State Administration of Traditional Chinese Medicine, Shanghai Municipal Commission of Health and Family Planning and Shanghai Municipal Office for Development of Traditional Chinese Medicine, Traditional Chinese Medicine( TCM) preventive health care service system was started to construct in 2011 in Changning District of Shanghai.The system was residents'needs orien-ted.After five years of effort, TCM preventive health care service system characterized with integration of prevention and treatment, multicultural atmosphere, supported by TCM featured services was formed.The new model of community health management provided a positive and beneficial practice for the Healthy City construction with Chinese and Shanghai characteristics.

UNLABELLEDGlycogen storage disease (GSD) type Ia is an autosomal recessive disorder caused by a deficiency of glucose-6-phosphatase (G6Pase). The gene that encodes G6Pase was mapped to 17q21. The molecular genetic basis of GSD type Ia in the mainland Chinese population has not been explored.

OBJECTIVETo analyze the G6Pase gene mutations, and to compare the phenotypic features and the response to the corn starch treatment among patients who share the same mutation.

METHODSWith the consent of the parents and their children, the authors studied 18 families with clinically diagnosed GSD type Ia from our long time follow-up groups. Direct DNA sequencing of all 5 exons and the exon-intron boundaries of G6Pase gene were done on the blood specimens. Seven of the 18 patients, male 2 and female 5, aged 1.5 to 16 years, were homozygous for same mutation. The clinical symptoms, signs and the serum biochemical values before and after treatment were compared in these 7 patients.

RESULTSThe 7 patients were homozygous of G-->T transversion at the nucleotide 727 in exon 5 (G727T), which has previously been reported to cause abnormal splicing. The parents were heterozygous of the G727T mutation. All the patients exhibited typical features of GSD type Ia with variable severity, including hypoglycemia, hepatomegaly, kidney enlargement, growth retardation, bleeding diathesis, lactic acidemia, hyperlipidemia, and hyperuricemia. Two of the patients had repeated hypoglycemic seizures before the age of 2 years. One had moderate splenomegaly when he came to our clinic at the age of 16, the spleen size was reduced to 2 cm below the left costal margin after 5-year treatment. His sister, homozygous of G727T, did not show splenomegaly. One had multiple hepatic adenoma since the age of 5 years. Four had 5-year-delayed bone age when they started treatment at the age of 9 to 16 years, the bone age reached normal after 2 - 3 years treatment. No matter when they started corn starch treatment, the height increase in the first year was most obvious with an average of 10 cm. All the patients had abnormal liver function before treatment, 5 had constant slightly elevated liver enzymes with the treatment. All had normal urinalysis test, but the urine beta(2)- microglobulin was elevated.

CONCLUSIONSG727T mutation may be the major cause of GSD type Ia in China. Patients with the same mutation could have variable phenotypic characteristics, and the response to the corn starch treatment was different. The diagnosis of GSD type Ia can be based on clinical and biochemical abnormalities combined with mutation analysis instead of enzyme assays on liver biopsy.

Adolescent ; Base Sequence ; Child ; Child, Preschool ; China ; DNA ; chemistry ; genetics ; DNA Mutational Analysis ; Family Health ; Female ; Glucose-6-Phosphatase ; genetics ; metabolism ; Glycogen Storage Disease Type I ; enzymology ; genetics ; pathology ; Homozygote ; Humans ; Infant ; Male ; Molecular Sequence Data ; Phenotype ; Point Mutation ; Polymerase Chain Reaction

OBJECTIVETo observe effect of formula of removing both phlegm and blood stasis (TYTZ) in improving hemorheology and blood fat of mini-swine with coronary heart disease of phlegm-stasis cementation syndrome.

METHODThirty-six Chinese mini-swine were randomly divided to six groups: the normal control group, the model group, the Shujiangzhi group and TYTZ groups with doses of 2.0, 1.0 and 0.5 g x kg(-1), with six mice in each group. Except for the normal control group, all of other groups were fed with high-fat diet for 2 weeks. Interventional balloons are adopted to injure their left anterior descending artery endothelium. After the operation, they were fed with high-fat diet for 8 weeks to prepare the coronary heart disease model of phlegm-stasis cementation syndrome. In the 8th week after the operation and administration, the changes in hemorheological parameters, serum lipid level, myocardial ischemia level and range were observed.

RESULTCompared with the normal control group, the model group showed significant increase in serum TC, TG, LDL-C and VLDL-C levels (P < 0.01), whole blood viscosity under the shear rate of 5 s (-1) and 60 s (-1) (P < 0.01), and myocardial ischemia degree and range (P < 0.01). Compared with the model group, TYTZ groups revealed significant decrease in myocardial ischemia degree and range (P < 0.01), serum TC, TG, LDL-C and VLDL-C levels (P < 0.05 or P < 0.01) and whole blood viscosity under the shear rate of 5 s(-1) and 60 s(-1) (P < 0.05).

CONCLUSIONTYTZ could improve the abnormal hemorheology in Chinese mini-swine with coronary heart disease of phlegm-stasis cementation syndrome, and regulate serum lipid, with a certain efficacy for coronary heart disease of phlegm-stasis cementation syndrome.

Animals ; Coronary Disease ; blood ; metabolism ; physiopathology ; therapy ; Female ; Hemorheology ; Lipids ; blood ; Male ; Medicine, Chinese Traditional ; methods ; Mucous Membrane ; secretion ; Swine ; Swine, Miniature

OBJECTIVELate onset neonatal septicemia (systemic infection after 72 hours of life) remains a major cause of neonatal morbidity and mortality. Early treatment with appropriate antibiotics is critical since infected infants can deteriorate rapidly. The aim of this study was to review the pathogens responsible for late onset neonatal septicemia (LONS) and their antimicrobial susceptibilities in order to guide the initial selection of appropriate antibiotics for infants with suspected LONS.

METHODSA retrospective chart review of all cases with LONS seen in the neonatal intensive care unit (NICU) of Yuying Children's Hospital of Wenzhou Medical College from January 1, 2002 to December 31, 2005 was conducted. All cases were selected based on the clinical presentation and at least one positive result of blood culture. The basic clinical characteristics and the results of blood culture and antimicrobial susceptibilities were analyzed.

RESULTSA total of 102 cases with LONS were identified. Among those 102 cases, 80 were community acquired (infants admitted from home and the blood culture was done on admission) and 22 were hospital acquired (infants became sick while in the NICU and the blood culture was done prior to use of antibiotics). The clinical presentations were non-specific. Compared to the infants with community acquired LONS, infants with hospital acquired LONS were usually born more prematurely (mean gestational age 33 +/- 3 vs 39 +/- 2 wks, t = 2.255, P < 0.01), with lower weight (mean weight 1.79 +/- 0.70 vs 3.23 +/- 0.67 kg, t = 8.818, P < 0.01) and with younger age (mean age 12 +/- 6 vs 16 +/- 7 days, t = 7.581, P < 0.05). Of the 102 cases, a total of 103 strains of bacteria were isolated. Among the pathogenic bacteria isolated, the most common were coagulase-negative Staphylococcus (CoNS) (50/103, 48.5%), followed by Klebsiella pneumoniae (16/103, 15.5%). The main pathogens for community acquired LONS were Staphylococcus species and Escherichia coli. The most important pathogen responsible for hospital acquired LONS was Klebsiella pneumoniae. Most (> 80%) of the Staphylococcus especially CoNS were resistant to common antibiotics such as penicillin, erythromycin and cefazolin. Significant numbers (6/9) of Staphylococcus aureus isolated were methicillin-resistant Staphylococcus aureus (MRSA). However, all of the Staphyloccus isolates were sensitive to vancomycin. Almost all (15/16) of the Klebsiella pneumoniae isolated were multi-drug resistant due to production of extended-spectrum beta-lactamases (ESBLs). They were sensitive only to a few antibiotics such as carbapenems, aminoglycosides and quinolones. There was also one strain of vancomycin-resistant Enterococcus (VRE). Furthermore, there was no a single case of late onset neonatal sepsis due to infection with group B Streptococcus (GBS).

CONCLUSIONSThe clinical manifestations of late onset neonatal sepsis are usually non-specific. GBS is not a significant pathogen responsible for community acquired LONS in the Wenzhou area. There are increasing numbers of multi-drug resistant bacterial species isolated from the newborn infants with late onset neonatal septicemia, which is most likely due the non-restricted use of antibiotics in the hospitals as well as in the communities. A routine blood culture should be taken from any newborn infant who is suspected of LONS and empirical use of appropriate antibiotics should be initiated as soon as the blood specimen for culture has been drawn. To reduce the occurrence of multi-drug resistant bacteria, the use of antibiotics especially the third generation cephalosporins in neonates should be restricted as much as possible.

Community-Acquired Infections ; microbiology ; Cross Infection ; microbiology ; Drug Resistance, Bacterial ; Drug Resistance, Multiple, Bacterial ; Female ; Humans ; Infant, Newborn ; Male ; Retrospective Studies ; Sepsis ; microbiology

OBJECTIVETo observe the effect of estrogen and progestin on the blood levels of nitric oxide and angiotensin II in aid of the application of hormone replacement therapy in postmenopausal women.

METHODSThe serum nitric oxide and plasma angiotensin II levels in postmenopausal women were determined before and 3 months after oral intake of estradiol valerate 1 mg/day (n = 10) or estradiol valerate, 1 mg/d plus medroxyprogesterone acetate, 2 mg/d (n = 30).

RESULTSThe serum nitric oxide levels of postmenopausal women were significantly increased by 3 months of oral estradiol valerate 1 mg/d (P < 0.05), whereas the plasma levels of angiotensin II tended to decrease. The positive correlation between the increases of nitric oxide and the changes of estradial 3 months after oral intake of estradiol valerate 1 mg/d was significant. Compared with the baseline, no significant changes were observed in both serum nitric oxide levels and plasma angiotensin II levels 3 months after oral intake of estradiol valerate, 1 mg/d plus medroxyprogesterone acetate, 2 mg/d (P < 0.05).

CONCLUSIONSThe vascular functions can be improved through increasing the serum nitric oxide level after 3-month oral intake of estradiol valerate, 1 mg/d in postmenopausal women, and estradiol valerate plus medroxyprogesterone acetate intake may attenuate the beneficial effects.

Adult ; Angiotensin II ; blood ; Estradiol ; analogs & derivatives ; therapeutic use ; Estrogen Replacement Therapy ; Female ; Humans ; Medroxyprogesterone Acetate ; therapeutic use ; Middle Aged ; Nitric Oxide ; blood ; Postmenopause ; blood

OBJECTIVESTo evaluate the relationship between sperm apoptosis and male infertility.

METHODSPercentage of apoptotic sperm (PAS) in spermatozoa of fertile and infertile men were tested by flow cytometry (FCM).

RESULTSSperm apoptosis had happened in all different people. PAS in fertile and infertile group was (4.28 +/- 1.66)% and (18.67 +/- 8.55)% respectively, and difference was significant between two groups (P < 0.01). There was negative correlation between PAS and semen volume, sperm density, percentage of forward motility, percentage of normal morphology (P < 0.01).

CONCLUSIONSThere was very close relationship between sperm apoptosis and male infertility. FCM used to test sperm apoptosis is rapid, accurate, objective and reliable to analyse sperm functions and male fertility.

Apoptosis ; Flow Cytometry ; Humans ; Infertility, Male ; pathology ; Male ; Spermatozoa ; pathology