OBJECTIVETo investigate the influence of male age on the pregnancy outcomes of in vitro fertilization-embryo transfer (IVF-ET).

METHODSWe retrospectively analyzed 7,533 cycles of IVF-ET performed between January 1, 2009 and October 31, 2013. We divided the samples into three groups according to the female age (< 30, 30-34, and 35-38 yr), each again subdivided into six groups based on the male age (< 30, 30-32, 33-35, 36-38, 39-41, and ≥ 42 yr). We compared the rates of implantation, pregnancy, miscarriage, and live birth among different age groups.

RESULTSThere were no statistically significant differences in basal E2, FSH, endometrium thickness on the day of hCG administration, number of oocytes retrieved, and days of embryo transfer among different male age groups (P > 0.05). The implantation rate showed an age-dependent decrease in the < 30, 30-32, 33-35, 36-38, 39-41, and ≥ 42 yr male groups, 41.1, 42.0, 39.5, 31.3, 40.7, and 48.6% among the women aged < 30 years (P < 0.05), 40.3, 36.4, 35.1, 35.3, 29.4, and 37.3% among the women aged 30-34 years (P < 0.05), and 48.2, 17.8, 25.3, 23.5, 22.1, and 23.8% among the women aged 35-38 years (P < 0.05). The miscarriage rate was significantly higher in the ≥ 39 yr than in the 30-32 and 33-35 yr male age groups among the women aged 30-34 years (P < 0.05), but showed no remarkable differences among the other male age groups in the women aged < 30 and 35-38 years (P > 0.05). No statistically significant differences were observed in the rates of pregnancy and live birth among different male age groups (P > 0.05).

CONCLUSIONMale age has some influence on the rates of implantation and miscarriage but not on the rates of pregnancy and live birth in IVF-ET.

Abortion, Spontaneous ; epidemiology ; Adult ; Age Factors ; Embryo Implantation ; Embryo Transfer ; Female ; Fertilization in Vitro ; Humans ; Male ; Oocyte Retrieval ; Pregnancy ; Pregnancy Outcome ; Pregnancy Rate ; Retrospective Studies ; Sex Factors

Air Pollutants, Occupational ; analysis ; Chlorofluorocarbons, Methane ; analysis ; Chromatography, Gas ; methods ; Workplace

Objective To observe the curative effect of autologous bone marrow stem cells implantation to bone inducing active material combined with core decompression in the treatment of early femoral head osteonecrosis (FHON).Methods From April,2010 to March,2012,in Department of Orthopaedics,the First Affiliated Hospital of Zhengzhou University,a total of 79 adult patients with 108 hips suffered from the early stage FHON were treated with autologous bone marrow stem cells implantation to bone inducing active material combined with core decompression through the core of the femoral canal,male of 65 cases,female of 14 cases,the mean age was 29.5 (20-50) years old.According to the etiology classification:the alcohol-induced FHON was in 54 patients with 66 hips,steroid-induced FHON in 14 patients with 20 hips,steroid and alcohol-induced ONFH was in 11patients with 22 hips.According to association research circulation osseous (ARCO)classifying,Ⅰ-A,Ⅰ-B,Ⅱ-A,Ⅱ-B phases were 6,16,8,and 78 hips,respectively.There were 43 hips in left side and 65 hips in the right side.Results All patients were followed up from 4 to 6 (4.8 ± 0.6) years.Compared with before operation,the scores of all patients were significantly increased (P ＜ 0.05).All patients with hip pain symptoms were relieved or disappeared.The healing tine of the patients in all age groups was statistically significant (P ＜ 0.05),and with the increase of age,the healing time was prolonged.The excellent and good rates of Ⅰ-A,Ⅰ-B,Ⅱ-Aand Ⅱ-B were 100％ (6 / 6),100％ (16/16),100％ (8/8),and 98.7％ (77/78).The X-ray showed that coarse channel osteogenic phenomenon is obvious,there is 1 case collapse of femoral head of stage Ⅱ-B,the rest were not collapse.Conclusion The treatment of early osteonecrosis of the femoral head with autologous bone marrow stem cells implantation to bone inducing active material combined with core decompressionis definitely effective,especially in patients with ARCO:Ⅰ-A,Ⅰ-B and Ⅱ-A phase,and the effect of ARCO:Ⅰ-A and Ⅱ-A is the best.

OBJECTIVETo assess the role of probiotics in the prevention of neonatal necrotizing enterocolitis (NEC) and to investigate the risk factors for NEC.

METHODSA total of 2528 hospitalized neonates between January 2002 and May 2005 were assigned into either receiving prophylactic use of probiotics bifoco (Prevention group, n=1182) or without probiotics supplementation (Control group, n = 1346). The incidence of NEC was compared between the two groups. The risk factors for NEC were investigated by conditional logistic regression multifactorial analysis.

RESULTSThere were 19 cases of NEC in the Control group (1.41%), but only 6 cases in the Prevention group (0.51%) (P < 0.05). Gestational age (OR = 5.521), hypoxicdouble ended arrowischemic encephalopathy (OR = 3.887), specticemia (OR = 4.854) and critical illness scores (OR = 5.989) were the risk factors for NEC, while the prophylactic use of probiotics was an independent protective factor for NEC (OR = 0.255).

CONCLUSIONSThe prophylactic use of probiotics may reduce the incidence of NEC in neonates.

Case-Control Studies ; Enterocolitis, Necrotizing ; prevention & control ; Female ; Humans ; Infant, Newborn ; Male ; Probiotics ; therapeutic use

Objective: To explore the correlation between antithrombotic strategy and its prognostic value in coronary artery disease (CAD) patients combining with atrial ifbrillation (AF) after percutaneous coronary intervention (PCI).
Methods: A total of 570 CAD patients with AF received PCI in our hospital from 2012-01 to 2013-12 were retrospectively analyzed by CHADS2 and HAS-BLED Score system. According to CHADS2 < 2 and CHADS2 ≥ 2 or with/without warfarin medication, the patients were divided into 2 groups:①CHADS2 < 2 (Low risk of stroke) group,n=339 including 309 patients without warfarin and 30 with warfarin medication;②CHADS2 ≥ 2 (High risk of stroke) group,n=231 including 200 patients without warfarin and 31 with warfarin medication. All patients were followed-up for 15 months to compare the different anti-platelet/ anti-coagulation strategies for the occurrence rate of MACCE, ischemic and bleeding events.
Results: Compared with Low risk of stroke group, the patients in High risk of stroke group had the worse prognosis and higher rate of MACCE occurrence,P<0.001, HR=2.677, 95% CI (1.535-4.635), more ischemic events,P=0.013, HR=2.080, 95% CI (1.167-3.709). Multi-factor Cox surving analysis indicated that compared with low risk patients without warfarin medication, the high risk patients without warfarin had the higher rate of MACCE occurrence,P=0.001, HR=2.985, 95% CI (1.532-5.816), more ischemic events,P=0.026, HR=2.068, 95% CI (1.090-3.925). Whereas, the occurrence rates of MACCE and ischemic events in high risk, low risk patients with warfarin and low risk patients without warfarin were similar, all P>0.05. The major bleeding events in patients with warfarin were a little higher than those without warfarin,P>0.05. The minor bleeding events were increased in both Low risk stroke group asP<0.001, OR=4.458, 95% CI (1.934-10.277) and High risk stroke group asP=0.002, OR=4.155, 95% CI (1.717-10.055).
Conclusion: Warfarin medication may obviously decrease the occurrence rates of MACCE and ischemic events in high risk of stroke patients, while in low risk patients, warfarin could not further decrease the occurrence of MACCE and ischemic events. Warfarin could increase the risk for minor bleeding in both low risk and high risk of stroke in CAD patients combining with AF after PCI.

Objective To detect the MSX1 gene mutation in a Chinese family with oligodontia.Methods Blood samples were obtained from seven affected and seven unaffected individuals in the pedigree.All exons and flanking intronic boundaries of the MSX1 gene were amplified with polymerase chain reaction technique and then directly sequenced.The website of bioinformatics was used to predict the effect of the mutation on the function.Results A splicing mutation(IVS1-2A＞G)was found at position-2 near the 3'end of the IVS1 of MSX1.which made a change of the intron 1 splice acceptor site.None of the mutation was found in normal individuals of the family and in 100 unrelated healthy matched control individuals.Conclusions IVS1-2A＞G was a novel splicing mutation identified in the MSX-1 gene and it might be responsible for nonsyndromic oligodontia in this family.

Objective To investigate the influence of different protrusion distance of stent strut into the subclavian artery on local hemodynamics of the vertebral artery (VA) ostium.Methods Five models of the VA were established. Model 1 was without stent implantation, Model 2 to 5 was with stent protruding into the subclavian artery for 0, 1, 2, 3 mm, respectively. Computational fluid dynamics analysis was performed to study the differences of hemodynamics in these models. Results After stent implantation, the wall shear stress and the blood flow velocity at the stent segment in the Model 2 was reduced by 85.33% and 35.36%, respectively. The phenomenon of swirling flow disappeared. For models with different protrusion distance, the maximum difference of wall shear stress of VA was 0.76%, and the maximum difference of blood flow velocity is 0.45%. ConclusionsStent implantation can improve the hemodynamics of vertebral artery ostium stenosis, while the protrusion distance of stent strut has no obvious influence on the blood flow velocity and wall shear stress.

This study was aimed to investigate the expression characteristics of two transcriptional factors in Ikaros family, Ikaros and Helios isoforms and their mechanism, as well as their correlation with clinical parameters, which play important roles in transcriptional regulation of hematopoiesis. Expression of Ikaros and Helios isoforms in a total of 163 patients with leukemia and correlations between Ikaros and Helios isoforms were analyzed by PCR. The results showed that different expression patters of Ikaros and Helios isoforms existed in leukemia patients, that is, Ikaros isoform (Ik-6) was predominantly expressed in acute lymphoblastic leukemia (ALL) with BCR/ABL fusion gene, while Helios isoform (He-i) was overexpressed in T-cell ALL patients. The results of cloning and sequencing demonstrated that the isoforms of Ikaros and Helios had different genetic alterations. The statistical correlation between these two isoforms not was found in this study, although interaction between Ikaros and Helios has been reported. It is concluded that although Ikaros and Helios belong to the same family with similar structure of zinc fingers, their isoforms have different expression profile, specific genetic alterations, and different clinical relevance in patients with leukemia. The connection and interaction between Ik-6 and He-i needs further research.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Female ; Gene Expression Profiling ; Humans ; Ikaros Transcription Factor ; genetics ; metabolism ; Leukemia ; genetics ; metabolism ; Male ; Middle Aged ; Protein Isoforms ; genetics ; metabolism ; Young Adult

OBJECTIVETo study the trend of under 5 years old children mortality and the leading cause of the deaths in China from 1996 to 2000.

METHODSThe data presented in this report were obtained from the national child mortality surveillance network, including 116 counties (cities) throughout China. The target population was all children under 5 years old in the monitored areas whose mothers or fathers had resided in the area for at least one year. The data were collected and reported by health workers at the three-level network.

RESULTSThe neonatal mortality rate (NMR), infant mortality rate (IMR) and under 5 years old mortality rate (U(5)MR) in China dropped to 22.8, 32.2, 39.7 per 1,000 live births in 2000, respectively (they were 24.0, 36.0, 45.0 respectively in 1996), which declined 5.0%, 10.6%, 11.8% from 1996 to 2000, respectively. In urban areas, NMR, IMR and U(5)MR dropped to 9.5, 11.8, 13.8 per 1,000 live births in 2000, respectively (they were 12.2, 14.8, 16.9 respectively in 1996), which declined 22.1%, 20.3%, 18.3% from 1996 to 2000, respectively. In rural areas, NMR, IMR and U(5)MR dropped to 25.8, 37.0, 45.7 per 1,000 live births in 2000, respectively (they were 26.7, 40.9, 51.4 respectively in 1996), which declined 3.4%, 9.5%, 11.1% from 1996 to 2000, respectively. There was a steady decline in the U(5)MR due to diarrhea, pneumonia, neural tube defects and drowning in China.

CONCLUSIONIn urban/rural areas, the overall decline in NMR, IMR and U(5)MR from 1996 to 2000 was spectacular. Especially the U(5)MR due to avoidable deaths such as pneumonia and diarrhea was dropped markedly in rural areas.

Cause of Death ; trends ; Child Mortality ; trends ; Child, Preschool ; China ; epidemiology ; Fetal Death ; Humans ; Infant ; Infant Mortality ; trends ; Infant, Newborn ; Rural Population ; statistics & numerical data ; Urban Population ; statistics & numerical data

OBJECTIVETo assess the prevalence of several tyrosine kinases (TKs) gene mutations including c-Kit, FLT3 and JAK2 V617F in core binding factor related acute myeloid leukemia (CBF-AML), and analyze their impact on clinical characteristics and prognosis.

METHODSMutations of c-Kit, FLT3-ITD and FLT3-TKD were detected by genomic DNA PCR and sequencing, and JAK2 V617F mutation screening by allele-specific PCR in 58 newly diagnosed CBF-AML patients [28 AML with inv(16) and 30 with t(8;21)], and analyze the patients clinical characteristics and prognoses.

RESULTSc-Kit aberrations were detected in 32.8% cases, including 6 cases mutated in exon 8 (mutKIT8) and 13 mutated in exon 17 (mutKIT17). MutKIT8 was more prominent in inv(16) than in t(8;21) patients (21.4% vs 0, P = 0.009). Only 2 cases had FLT3-ITD and 7 (12.1%) FLT3-TKD mutations. The result of JAK2 V617F mutation screenings in these CBF-AML patients was negative. The frequency of receptor tyrosine kinases(RTK) mutations was 46.6% and only one case had two kinds of missense mutations (mutKIT8 & TKD(+)). Median age of onset was higher for mutKIT17 than for wide-type c-Kit (wtKIT) patients (55 vs 31, P = 0.003). c-Kit mutations were significantly associated with decreased overall survival (OS) and continuous complete remission (CCR) rates (P = 0.053, and 0.048 respectively), and so did more for exon17 mutated patients reduced (P = 0.005, and 0.013 respectively). FLT3-TKD mutation showed no effects on prognosis of CBF-AML patients.

CONCLUSIONSRTK mutations are common in patients with CBF-AML. c-Kit mutations frequently and JAK2V617F mutation rarely appear in CBF-AML. c-Kit mutations, especially mutKIT17 confers higher relapse risk and poorer prognosis.

Adolescent ; Adult ; Aged ; Core Binding Factors ; DNA Mutational Analysis ; Female ; Humans ; Janus Kinase 2 ; genetics ; Leukemia, Myeloid, Acute ; diagnosis ; etiology ; genetics ; Male ; Middle Aged ; Mutation ; Prognosis ; Protein-Tyrosine Kinases ; genetics ; Proto-Oncogene Proteins c-kit ; genetics ; Young Adult ; fms-Like Tyrosine Kinase 3 ; genetics