• Title/Summary/Keyword: HBP2

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Expression of HBP2 in Human Spermatogonial Stem Cell-like Cells from Nonobstructive Azoospermia Patients and Its Role in G1/S Transition & Downregulation in Colon Cancer

  • Yoo, Jung-Ki;Lee, Dong-Ryul;Lim, Jung-Jin;Kim, Jin-Kyeoung
    • Reproductive and Developmental Biology
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    • v.32 no.4
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    • pp.211-215
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    • 2008
  • The HMG box containing protein (HBP) has a high mobility group domain and involved in the regulation of proliferation and differentiation of tissues. We screened HBP2 in glioblastoma using Suppression Subtractive Hybridization (SSH) and isolated human spermatogonial stem cell-like cells (hSSC-like cells) derived from patients of nonobstructive azoospermia (NOA). Expression of HBP2 was analyzed by RT-PCR in undifferentiated stem cells (human Embryonic Stem Cells, hSSC-like cells 2P) and spontaneous differentiated stem cells (hSSC-like cells 4P). It was overexpressed in hESC and hSSC-like cells 2P but not in hSSC-like cells 4P. Also, the expression level of HBP2 was downregulated in colon tumor tissues compared to normal tissues. Specifically in synchronized WI-38 cells, HBP2 was highly upregulated until the G1 phase of the cell cycle and gradually decreased during the S phase. Our results suggest that HBP2 was downregulated during the spontaneous differentiation of hSSC-like cells. HBP2 was differently expressed in colon tissues and was related to G1-progression in WI-38 cells. It may playa role in the maintenance of an undifferentiated hSSC-like cell state and transits from G1 to S in WI-38 cells. This research was important that it identified a biomarker for an undifferentiated state of hSSC-like cells and characterized its involvement to arrest during cell cycle in colon cancer.

Anti-Oxidative Effect of Soyangin Hyeongbangpaedok-san Decoction in Kidney and Spleen Cells of Aged Rats (소양인(少陽人) 형방패독산(荊防敗毒散) 전탕액이 노화쥐의 신장과 비장 세포의 항산화능에 미치는 영향)

  • Min, Gyeong-Hoon;Ahn, Taek-Won
    • Journal of Sasang Constitutional Medicine
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    • v.22 no.1
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    • pp.49-58
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    • 2010
  • 1. Objectives: The purpose of this study is to find out the Anti-Oxidative effects of Soyangin Hyeongbangpaedok-san(HBP) in kidney and spleen cells of aged rats. 2. Methods: Aged rats used in this experiment were 6, 52, 68 weeks old. Each age group was divided into three groups again. One group was given no treatment, another group was dosed normal saline and the other group was dosed HBP decoction. The antioxidant effects of HBP decoction were measured by the levels of SOD, GSH, MDA and NO. 3. Results: and Conclusions: 1) The activity of SOD was significantly increased in kidney cells of 68w-HBP group. Deterioration of the activity of SOD in kidney cells was significantly suppressed according to increasing in age of the week. 2) The level of NO was significantly decreased in kidney cells of 68w-HBP group. Deterioration of The level of NO in kidney cells was significantly suppressed according to increasing in age of the week. 3) The activity of SOD was increased in spleen cells of 52w and 68w-HBP group. 4) The level of GSH was significantly increased in spleen cells of 68w-HBP group.

Adaptive Multiview Video Coding Scheme Based on Spatiotemporal Correlation Analyses

  • Zhang, Yun;Jiang, Gang-Yi;Yu, Mei;Ho, Yo-Sung
    • ETRI Journal
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    • v.31 no.2
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    • pp.151-161
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    • 2009
  • In this paper, we propose an adaptive multiview video coding scheme based on spatiotemporal correlation analyses using hierarchical B picture (AMVC-HBP) for the integrative encoding performances, including high compression efficiency, low complexity, fast random access, and view scalability, by integrating multiple prediction structures. We also propose an in-coding mode-switching algorithm that enables AMVC-HBP to adaptively select a better prediction structure in the encoding process without any additional complexity. Experimental results show that AMVC-HBP outperforms the previous multiview video coding scheme based on H.264/MPEG-4 AVC using the hierarchical B picture (MVC-HBP) on low complexity for 21.5%, on fast random access for about 20%, and on view scalability for 11% to 15% on average. In addition, distinct coding gain can be achieved by AMVC-HBP for dense and fast-moving sequences compared with MVC-HBP.

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Effect of Degradative Products on Dibenzothiophene Desulfurization Activity of Gordona sp. MS6 (Gordona sp. MS6균주의 dibenzothiophene 탈황능에 미치는 분해산물의 영향)

  • 조경숙
    • Korean Journal of Environmental Biology
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    • v.18 no.1
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    • pp.33-39
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    • 2000
  • Gordona sp. MS6, desulfurizing petroleum, can convert dibenzothiophene (DBT) to 2-hydroxybiphenyl (2-HBP) and sulfate. In this study, the effect of DBT degradation product on DBT desulfurization activity was investigated. When $Na_2$SO$_4$ and DBT were simultaneously added in the medium sulfur sources, specific growth rate of strain MS6 was doubled compared to not adding $Na_2$SO$_4$. But, sulfate inhibited DBT desulfurization rate, furthermore, when 0.05 g/L $Na_2$SO$_4$ was supplied DBT desulfurization rate decreased down to 40%. When 2-HBP and its derivative, 2, 2'-dihydroxybiphenyl (DHBP) were not added, DBT desulfurization rate was 5.0 $\mu$mol L$^{-1}$ㆍh$^{-1}$. With the increase of 2-HBP and DHBP concentration, DBT desulfurization rate was decreased. No DBT desulfurization activity of Gordona sp. MS6 was observed when initial concentration was over 0.15 mM 2-HBP and 0.8 mM DHBP [Gordona sp., Desulfurization, Dibenzothiophene, 2-Hydroxybiphenyl, Sulfate].

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Relationship between the mRNA Expression Levels of Sperm Phospholipids Hydroperoxide Glutathione Peroxidase and Heparin-Binding Protein, and in-Vivo Fertility in Boars (돼지 정자내 Phospholipids Hydroperoxide Glutathione Peroxidase와 Heparin-Binding Protein의 발현 수준과 번식 능력의 관계)

  • Oh, Shin-Ae;Shin, Cha-Gyun;You, Young-Ah;Han, Kyung-Soo;Pang, Myung-Geol
    • Reproductive and Developmental Biology
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    • v.31 no.3
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    • pp.133-137
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    • 2007
  • The objective of the study was to determine the relationship between the mRNA expression levels of sperm phospholipids hydroperoxide glutathione peroxidase (PHGPx) and heparin-binding protein (HBP), and in-vivo fertility in boars. The farrowing rate was not correlated with litter size. Sperm PHGPx mRNA expression level of the larger litter size (over 10) group $(2,414.7{\pm}400.7)$ was high that of smaller litter size (below 8) group $(1,875.8{\pm}311.2)$. Sperm HBP mRNA expression level was also higher in the larger litter size $(2,255.9{\pm}360.8)$ group than the smaller litter size $(2,155.4{\pm}378.0)$. However, significant differences were not observed. Sperm PHGPx mRNA level was correlated positively with litter size (r=0.206). Because the expression levels of PHGPx and HBP are not strongly correlated with in-vivo fertility, PHGPx and HBP can not be considered a predictive measure for fertility in boars.

The Diagnosis for Educational Behavioral Strategies of Community Health Nurse-Community Health Worker for Control of Hypertensive Urban Young Black Men in America (간호사-지역사회건강상담자팀의 미국 도시지역 젊은 흑인 남자 집단의 고혈압 관리를 위한 전략 활동의 교육-행위진단)

  • Park, Kyung-Min
    • Research in Community and Public Health Nursing
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    • v.7 no.1
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    • pp.80-99
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    • 1996
  • Young black men(YBM) have the most severs levels of high blood pressure(HBP) and, in all reports but one, the lowest of HBP control of any age /sex /race group. To increase entry into care, remaining in care, and BP control for young(18-49 years) Black men, It is needed to review socio-demographic, medical characteristics, and behaviors(importance of and difficulty with HBP control behaviors, or worry about mdication) for experimental intervention study(educational- behavior strategies) of hypertensive urban young black men. The 204 participants had an average age of 38.8+7.0 years and an average educational level of $11.0{\pm}2.4$ years; only 23.1% were employed full- or part-time while 26% were on disability ; and 6% were married. Only 35.3% had an MD for HBP care and 37.3% had some form of health insurance. The average BP of those men currently being in care on medication(35.3%) was $148.2/95.1{\pm}19.5/11.3$ compared to those men not taking HBP care $153.7/99.1{\pm}14.0/9.8(p<.05)$. The average creatinine level was 1.3(excluding 3 marked elevations of 15.9, 9.6, and 7.7) for the 163 men consenting to have their blood drawn. Self-reported co-morbidity induded heart disease 7.8%, diabetes 8.9%, high cholesterol 18.2%, CVA 3.4%, alcohol and drug related problems 27.9% and 22.5% respectively. The kidney disease of those men currently being in care & on medication was 9.7 compared to those men not taking HBP care 0.8(p<.05). The problems of with sex life, physicl activity and dearly thinking of those men currently being in care & on medication was higher compared to those men not taking HBP care(p<.05). Questions of 'during the past month, on how many days did you have 5 or more drinks (bottles) of any alcoholic beverag?' and smoking of those men currently being in care & on medication was 18.1% and 72.2% compared to those men not taking HBP care 27.3 and 82.6%, respectively. HBP control behaviors was assessed with 1-5 point Likert subscales(5=extreme, 1-none at all), In general, th men reportd low levels of perceived psychological barrier to HBP care and control behaviors; importance of and difficulty with HBP control behaviors, or worry about mdication. For example, on a five point scale(1=none at all, 5=extreme), average ratings for perceived important and difficulty with BP care and behaviors were 2.8(SD=1.2) and 2.5(SD=1.1). Average ratings for perceived benefit with BP care and behaviors worry about medication of those men currently being in care on medication was 4.0(SD=0.9) and 2.2(SD=1.1) compared to those men not taking HBP care 3.6(SD=0.8), 2.8 (SD=1.6) respectively(p<.05). These data support the need for educational-behavioral strategies of community health nurse to improve high blood pressure control in this high risk group through perceived barriers to treatment, health care skills and use of resources, and social support.

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Characteristics of dibenzothiophene desulfurization by mutant Gordona sp. EID (돌연변이 균주 Gordona sp. EID의 dibenzothiophene 탈황 특성)

  • Cho, Kyung-Suk;Kim, Yoon Jung;Sung, Jung Hyeon;Ryu, Hee Wook;Chang, Yong Keun
    • Clean Technology
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    • v.5 no.2
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    • pp.79-86
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    • 1999
  • Mutant strain EID was developed by treating Gordona sp. CYKS1 with ethylmethanesulfone, and the desulfurization characteristics of dibenzothiophene(DBT) by mutant EID was investigated. Strain EID desulfurized DBT to 2-hydroxybiphenyl (2-HBP) by 4S pathway. Desulfurization rate of the strain EID was $4.0{\mu}mol{\cdot}L^{-1}{\cdot}h^{-1}$, while that of the wild type CYKS1 was $2.6{\mu}mol{\cdot}L^{-1}{\cdot}h^{-1}$. The effect of glucose concentration supplied as the carbon source on the DBT desulfurization showed that DBT desulfurization rate was enhanced as the glucose concentration increased. Maximum DBT desulfurization rate was $11.1{\mu}mol{\cdot}L^{-1}{\cdot}h^{-1}$ at 2.0 mM DBT concentration. As end-products such as 2-HBP and sulfate concentrations increase, DBT desulfurization activity of the strain EID decreased. When 0.2 mM of 2-HBP was added in the medium, no growth and desulfurization activity was observed. When 0.5 g/L $Na_2SO_4$ was simultaneously supplied with DBT, DBT desulfurization rate was$1.4{\mu}mol{\cdot}L^{-1}{\cdot}h^{-1}$.

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Effect of the Heading Back Pruning on Flowering, Fruiting, and Nut Qualities of Chestnut Trees (Castanea spp.) (밤나무 절단전정이 개화, 결실 및 과실품질에 미치는 영향)

  • Lee, Uk;Kwon, Yong-Hee;Byun, Kwang-Ok;Kim, Mahn-Jo;Hyun, Jung-Oh
    • Journal of Korean Society of Forest Science
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    • v.97 no.3
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    • pp.221-228
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    • 2008
  • This study was conducted to understand the effect of the different treatment level of head back pruning (HBP) on flowering, fruiting and nut qualities. The average number of pistillate flowers per bearing mother branch (BMB) ranged greatly from 0.5 to 60.0. For all cultivars as the level of HBP treatment increases, the number of pistillate flowers per bearing branch (BB) and BMB decreased. For all cultivars the number of branches developed per BMB began to decrease above 30% HBP treatment level. The number of burrs per BB ranged from 1.0 to 2.0. Within 'Daebo' the number of burrs per BB increased with increasing HBP treatment level. The rate of fallen fruits was the lowest of 22.6% at the 50% HBP treatment level of 'Tsukuba', whereas the rate was the highest in 'Pyeonggi'. Nut weight increased with decreasing the number of burrs per BB. Nut yield per BMB showed a tendency of decreasing with increasing the HBP treatment level. Within a HBP treatment level nut grade indicating nut quality varied greatly among cultivars. For all cultivars except for 'Pyeonggi', the proportion of specially large nuts above the average weight increased as the HBP treatment level increased. The soluble solids content showed no significant difference among the HBP treatment levels just right after harvesting of nuts. After 8 weeks of harvesting, however, the soluble solids content increased about 3.3% to 5.3%. and was highest at the 50% HBP treatment level. There were no significant differences among the HBP treatment levels and cultivars in the nut hardness which is highly related to the storage as well as the initial soluble solid content.

화석연료의 탈황을 위한 DBT 분해 미생물의 탐색

  • Im, Seong-Jun;Lee, Seon-Bok
    • 한국생물공학회:학술대회논문집
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    • 2000.11a
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    • pp.549-552
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    • 2000
  • A microorganism which can desulfurize dibenzothiophene (DBT) to 2-hydroxybiphenyl (2-HBP) was isolated from coal samples. The rate of DBT desulfurization was enhanced by the presence of yeast extract. In the case of DBT desulfurization by resting cells the rate and extent of 2-HBP production was enhanced with the addition of Tween 80.

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Quality Characteristics of Sulgidduk added with Barley Sprout using Different Drying Methods (건조방법에 따른 새싹보리 설기떡의 품질특성)

  • Lim, Young-Sook;Kim, Min-Ji;Kang, Yang-Sun
    • Culinary science and hospitality research
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    • v.23 no.7
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    • pp.220-233
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    • 2017
  • The purposes of this study were: (1) to examine the quality characteristics of the Sulgidducks added with barley sprouts by blanching (CON), freeze-drying (FBP), hot-air drying(HBP); (2) to examine the quality characteristics of Sulgidduck such as the moisture content, the color value, the textural properties and the sensory evaluation; (3) to find the optimal ratio of barley sprouts, which were made by the three different drying methods. As a result, the Sulgidduks containing barley sprouts by CON showed a lot of significance and high correlation depending on the amounts of the barley sprout(p<0.05). As the amounts of CON, FBP and HBP increased, the L and the a values of Sulgidducks significantly decreased, whereas the b values of them increased. For the textual properties of the Sulgidducks, on the first day, the concentration in CON up to 6% showed no significant differences in the hardness, cohesiveness, springiness, and chewiness. In case of FBP, the increase in the additives caused decrease in the hardness, adhesiveness, springiness, and chewiness of the Sulgidducks on storage 0 day(p<0.05). As the amounts of HBP increased, the hardness, springiness of the Sulgidducks on the first day decreased(p<0.05). Conclusionally, 6% blanched barley sprout added group, 2% FBP and HBP were highly rated in color, flavor, bitterness, chewiness, overall acceptability and all sensory quality characteristics.