http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Efficacy of Intracytoplasmic Sperm Injection for Leukocytospermia
Lee, Hyang-Heun,Lee, Hoi-Chang,Ko, Duck-Sung,Park, Won-Il,Kim, Seung-Samuel,Lim, Hee-Joung,Bae, Hyung-Joon,Moon, Hi-Joo,Kang, Hee-Gyoo The Korean Society for Biomedical Laboratory Scien 2004 Journal of biomedical laboratory sciences Vol.10 No.1
White blood cells (WBCs) are present in most human ejaculates, but abnormally high concentration of seminal leukocytes may reflect an underlying pathological condition. The World Health Organization (WHO) has defined leukocytospermia as status of more than $10^6$ WBC/mL of semen. The purpose of this study was firstly, to compare the outcomes between conventional IVF and ICSI in leukocytospermia, and secondly, to investigate whether ICSI may be an alternation treatment for patients with leukocytospermia. Total 346 cycles of conventional IVF and ICSI candidates underwent IVF cycles at Eulji Hospital Infertility Clinic. Semen Parameters including concentration, motility, morphology of spermatozoa and concentration of leukocytes were assessed from the raw ejaculates. There was no difference in sperm concentration, motility and morphology. The rates of fertilization and good embryo development from ICSI were significantly higher than those from conventional IVF in leukocytospermia (60.4% & 32.5%, respectively for ICSI group and 44.4% & 28.5%, respectively for IVF group, P<0.00l). The pregnancy rate after ICSI was also higher than that from conventional IVF (34.0% vs 29.1 %, P<0.05). These results indicate that the presence of seminal leukocyes (> 1$\times10^6$ WBC/mL of semen) is adversely related with fertilization, embryo development and pregnancy rate. Therfore the measurement of seminal leukocytes in routine semen analysis appears to be of prognostic value with regard to male fertilizing potential. In conclusion, it is suggested that ICSI is an alternative choice of treatment for patients with leukocytospermia.
Efficacy of Intracytoplasmic Sperm Injection for Leukocytospermia
Hyang Heun Lee,Hoi-Chang Lee,Duck-Sung Ko,Won-Il Park,Seung Samuel Kim,Hee-Joung Lim,Hyung Joon Bae,Hi Joo Moon,Hee-Gyoo Kang 대한의생명과학회 2004 Biomedical Science Letters Vol.10 No.1
White blood cells (WBCs) are present in most human ejaculates, but abnormally high concentration of seminal leukocytes may reflect an underlying pathological condition. The World Health Organization (WHO) has defined leukocytospermia as status of more than 10? WBC/mL of semen. The purpose of this study was firstly, to compare the outcomes between conventional IVF and ICSI in leukocytospermia, and secondly, to investigate whether ICSI may be an alternation treatment for patients with leukocytospermia. Total 346 cycles of conventional IVF and ICSI candidates underwent IVF cycles at Eulji Hospital Infertility Clinic. Semen Parameters including concentration, motility, morphology of spermatozoa and concentration of leukocytes were assessed from the raw ejaculates. There was no difference in sperm concentration, motility and morphology. The rates of fertilization and good embryo development from ICSI were significantly higher than those from conventional IVF in leukocytospermia (60.4% & 32.5%, respectively for ICSI group and 44.4% & 28.5%, respectively for IVF group, P<0.001). The pregnancy rate after ICSI was also higher than that from conventional IVF (34.0% vs 29.1%, P<0.05). These results indicate that the presence of seminal leukocyes (>1×10? WBC/mL of semen) is adversely related with fertilization, embryo development and pregnancy rate. Therfore the measurement of seminal leukocytes in routine semen analysis appears to be of prognostic value with regard to male fertilizing potential. In conclusion, it is suggested that ICSI is an alternative choice of treatment for patients with leukocytospermia.
Hyang Heun Lee,HyeWon Youm,Jung Ryeol Lee,Byung Chul Jee,Chang Suk Suh,Seok Hyun Kim 한국발생생물학회 2014 한국발생생물학회 학술발표대회 Vol.2014 No.9
The aim of this study was to analyze the effect of antifreeze proteins (AFPs) on vitrification of mouse mature (MII) oocytes. We studied about 3 types of AFPs from different origins (FfIBP, LeIBPand Type III AFP). The MII oocytes were obtained from 4-week-old BD-F1 mice. Vitrification of oocyte was performed by 2 steps using the Cryotop (equilibration: 7.5% EG + 7.5% PROH for 5 min, vitrification: 15% EG + 15% PROH + 0.5M sucrose for 1 min). The concentrations of AFPs added to these solutions were 0.05 mg/ml for FfIBP and 0.1 mg/ml for LeIBP and Type III AFP. After fertilization, embryo development was assessed up to 5 days. Through immunostaining of vitrified-warmed oocytes, we assessed the normal meiotic spindle. Also, intracellular ROS and mitochondrial activity was analyzed. In the developmental stages, FfIBP and LeIBP groups showed significantly higher survival rates. In the blastocyst and apoptotic blastomere rates were significant differences in AFPs treated groups. AFPs treated groups were significantly higher in blastocyst cell numbers than control group. Among the AFPs treated groups, FfIBP, LeIBP groups were significantly higher rates. And, in cleavage rates, FfIBP group was significantly higher rates than the other groups. In vitrified-warmed MII oocytes, the normal meiotic spindle organization and chromosome alignment rate was significantly higher in FfIBP and LeIBP groups. And in intracellular ROS levels, control group was significantly increased than AFPs treated groups. However, in the mitochondrial activity, LeIBP group was significantly higher than control, FfIBP and LeIBP groups. AFPs treated groups were significant differences in development, meiotic spindle organization and intracellular ROS levels. And in the AFPs treated groups, FfIBP and LeIBP groups were significantly higher rates in normal meiotic spindle and mitochondrial activity than Type III AFP group respectively. In conclusion, FfIBP and LeIBP can be thought to improve oocyte cryopreservation efficiency.
배양한 대뇌피질세포에서 유발한 신경손상에 대한 콜린에스테라제 억제제의 영향
독고향(Hyang Dok Go),이광헌(Kwang Heun Lee),조정숙(Jung Sook Cho) 대한약학회 2002 약학회지 Vol.46 No.3
Alzheimer's disease (AD) involves neuronal degeneration with impaired cholinergic transmission, particularly in areas of the brain associated with learning and memory: Several cholinesterase inhibitors are widely prescribed to ameliorate the cognitive deficits in AD patients. In an attempt to examine if tacrine and donepezil, two well- known cholinesterase inhibitors, exhibit additional pharmacological actions in primary cultured rat cortical cells, we investigated the effects on neuronal injuries induced by glutamate or N-methyl-D-aspartate (NMDh), β-amyloid fragment (Aβ(25- 35)), and vatslous oxidative insults. Both tacrine and donepezil did not significantly inhibit the excitotoxic neuronal damage induced by g1utamate. However, taurine inhibited the toxicity induced by NMDh in a concentration-dependent fashion. In addition, taurine significantly inhibited the Aβ(25-35)-induced neuronal injury at the concentration of 50μM. In contrast, donepezil did not reduce the NMDA- nor Aβ(25-35))-induced neuronal injury, Tacrine and donepezil had no effects on oxidative neuronal injuries in cultures nor on lipid peroxidation in vitro. These results suggest that, in addition to its anticholinesterase activity the neuroprotective effects by taurine against the NMDA- and Aβ(25-35)-induced toxicity may be beneficial for the treatment of hn. In contrast, the potent and selective inhibition of central acetylcholinesterase appears to be the major action mechanism of donepezil.
Efficacy of Intracytoplasmic Sperm Injection for Leukocytospermia
강희규,--,--,--,--,--,--,--,-- THE KOREAN SOCIETY FOR BIOMEDICAL LABORATORY SCIEN 2004 Journal of biomedical laboratory sciences Vol.10 No.1
White blood cells (WBCs) are present in most human ejaculates, but abnormally high concentration of seminal leukocytes map reflect an underlying pathological condition. The World Health Organization (WHO) has defined leukocytospermia as status of more than 10^(6) WBC/mL of semen. The purpose of this study was firstly, to compare the outcomes between conventional IVF and ICSl in leukocytospermia, and secondly, to investigate whether ICSI may be an alternation treatment for patients with leukocytospermia. Total 346 cycles of conventional IVF and ICSI candidates underwent IVF cycles at Eulji Hospital Infertility Clinic. Semen Parameters including concentration, motility, morphology of spermatozoa and concentration of leukocytes were assessed from the raw ejaculates. There was no difference in sperm concentration, motility and morphology. The rates of fertilization and good embryo development from ICSI were significantly higher than those from conventional IVF in leukocytospermia (60.4% & 32.5% respectively for ICSI group and 44.4% & 28.5%, respectively for IVF group, P<0.001). The pregnancy rate after ICSI was also higher than that from conventional IVF (34.0% vs 29.1%. P<0.05). These results indicate that the presence of seminal leukocyes (>1×10^(6) WBC/mL of semen) is adversely related with fertilization, embryo development and pregnancy rate. Therfore the measurement of seminal leukocytes in routine semen analysis appears to be of prognostic value with regard to male fertilizing potential. In conclusion. it is suggested that ICSI is an alternative choice of treatment for patients with leukocytospermia.
Meta- and gene set analysis of stomach cancer gene expression data.
Kim, Seon-Young,Kim, Jeong-Hwan,Lee, Heun-Sik,Noh, Seung-Moo,Song, Kyu-Sang,Cho, June-Sik,Jeong, Hyun-Yong,Kim, Woo Ho,Yeom, Young-Il,Kim, Nam-Soon,Kim, Sangsoo,Yoo, Hyang-Sook,Kim, Yong Sung Korean Society for Molecular Biology 2007 Molecules and cells Vol.24 No.2
<P>We generated gene expression data from the tissues of 50 gastric cancer patients, and applied meta-analysis and gene set analysis to this data and three other stomach cancer gene expression data sets to define the gene expression changes in gastric tumors. By meta-analysis we identified genes consistently changed in gastric carcinomas, while gene set analysis revealed consistently changed biological themes. Genes and gene sets involved in digestion, fatty acid metabolism, and ion transport were consistently down-regulated in gastric carcinomas, while those involved in cellular proliferation, cell cycle, and DNA replication were consistently up-regulated. We also found significant differences between the genes and gene sets expressed in diffuse and intestinal type gastric carcinoma. By gene set analysis of cytogenetic bands, we identified many chromosomal regions with possible gross chromosomal changes (amplifications or deletions). Similar analysis of transcription factor binding sites (TFBSs), revealed transcription factors that may have caused the observed gene expression changes in gastric carcinomas, and we confirmed the overexpression of one of these, E2F1, in many gastric carcinomas by tissue array and immunohistochemistry. We have incorporated the results of our meta- and gene set analyses into a web accessible database (http://human-genome.kribb.re.kr/stomach/).</P>