• Title/Summary/Keyword: GV-1

Search Result 345, Processing Time 0.045 seconds

Identification and Characterization of a Putative Baculoviral Transcriptional Factor IE-1 from Choristoneura fumiferana Granulovirus

  • Rashidan, Kianoush Khajeh;Nassoury, Nasha;Merzouki, Abderrazzak;Guertin, Claude
    • BMB Reports
    • /
    • v.35 no.6
    • /
    • pp.553-561
    • /
    • 2002
  • A gene that encodes a protein homologue to baculoviral IE-1 was identified and sequenced in the genome of the Choristoneura fumiferana granulovirus (ChfuGV). The gene has an 1278 nucleotide (nt) open-reading frame (ORF) that encodes 426 amino acids with an estimated molecular weight of 50.33 kDa. At the nucleotide level, several cis-acting regulatory elements were detected within the promoter region of the ie-1 gene of ChfuGV along with other studied granuloviruses (GVs). Two putative CCAAT elements were detected within the noncoding leader region of this gene; one was located on the opposite strand at -92 and the other at -420 nt from the putative start triplet. Two baculoviral late promoter motifs (TAAG) were also detected within the promoter region of the ie-1 gene of ChfuGV. A single polyadenylation signal, AATAAA, was located 18nt downstream of the putative translational stop codon of ie-1 from ChfuGV. At the protein level, the amino acid sequence data that was derived from the nucleotide sequence in ChfuGV IE-1 was compared to those of the Cydia pomonella granulovirus (CpGV), Xestia c-nigrum granulovirus (XcGV) and Plutella xylostella granulovirus (PxGV). The C-terminal regions of the granuloviral IE-1 sequences appeared to be more conserved when compared to the N-terminal regions. A domain, similar to the basic helix-loop-helix like (bHLH-like) domain in NPVs, was detected at the C-terminal region of IE-1 from ChfuGV (residues 387 to 414). A phylogenetic tree for baculoviral IE-1 was constructed using a maximum parsimony analysis. A phylogenetic estimation demonstrates that ChfuGV IE-1 is most closely related to that of CpGV.

Identification, Characterization and Phylogenic Analysis of Conserved Genes within the odvp-6e/odv-e56 Gene Region of Choristoneura fumiferana Granulovirus

  • Rashidan, Kianoush Khajeh;Nassoury, Nasha;Giannopoulos, Paresa N.;Mauffette, Yves;Guertin, Claude
    • BMB Reports
    • /
    • v.37 no.2
    • /
    • pp.206-212
    • /
    • 2004
  • The genes that are located within the odvp-6e/odv-e56 region of the Choristoneura fumiferana granulovirus (ChfuGV) were identified by sequencing the 11 kb BamHI restriction fragment on the ChfuGV genome. The global GC content that was calculated from the data obtained from this genomic region was 34.96%. The open-reading frames (ORFs), located within the odvp-6e/odv-e56 region, are presented and compared to the equivalent ORFs that are located at the same region in other GVs. This region is composed of 14 ORFs, including three ORFs that are unique to ChfuGV with no obvious homologues in other baculoviruses as well as eleven ORFs with homologues to granuloviral ORFs, such as granulin, CfORF2, pk-1, ie-1, odv-e18, p49, and odvp-6e/odv-e56. In this study, the conceptual products of seven major conserved ORFs (granulin, CfORF2, IE-1, ODV-E18, p49 and ODVP-6E/ODV-E56) were used in order to construct phylogenetic trees. Our results show that granuloviruses can be grouped in 2 distinct groups as follows: Group I; Choristoneura fumiferana granulovirus (ChfuGV), Cydia pomonella granulovirus (CpGV), Phthorimaea operculella granulovirus (PhopGV), and Adoxophyes orana granulovirus (AoGV). Group II; Xestia c-nigrum granulovirus (XcGV), Plutella xylostella granulovirus (PxGV), and Trichoplusia ni granulovirus (TnGV). The ChfuGV conserved proteins are most closely related to those of CpGV, PhopGV, and AoGV. Comparative studies, performed on gene arrangements within this region of genomes, demonstrated that three GVs from group I maintain similar gene arrangements.

Porcine Oocytes with Meiotic Competence are Synchronized Early Stage of Germinal Vesicle (GV)

  • Park, Kwang-Wook
    • Reproductive and Developmental Biology
    • /
    • v.34 no.3
    • /
    • pp.169-173
    • /
    • 2010
  • Correlations between cumulus cells and germinal vesicle (GV) chromatin configuration were examined in porcine oocytes. Cumulus-oocyte complexes (COCs) were collected from 2~6 mm follicles and divided into three categories according to cumulus cell morphology. "A" group was compacted COCs with more than three cumulus cell layers. "B" group was COCs with less cumulus cell layers than "A" group. "C" group was COCs with one or less layer of cumulus cells. Cumulus cells were removed 0.1% hyaluronidase, and denuded oocytes were stained with Hoechst 33342. GV chromatin configuration was classified into GV-Con and GV-Dis. GV-Con meant that a nucleus was surrounded by condensed chromatin in a ring. GV-Dis meant that filamentous chromatin clumps were distributed in nucleus. The proportion (80.2%) of GV-Con in "A" group was significantly higher than "B" (62.0%) or "C" (44.9%). The proportion (55.1%) of GV-Dis in "C" group was significantly higher than "A" (19.8%) or "B" (38.0%). The meiotic competence of COCs was examined after 44 h culture. The proportion (90.0%) of oocytes reaching to metaphase II (M-II) in "A" group was significantly higher than "B" (76.5%) or "C" (45.5%). In conclusion, oocytes with good quality cumulus cell layers are synchronized early GV stage, and early GV stage is important for meiotic competence in pigs.

Morphological Changes on Nuclear Phase of Germinal Vesicles in Porcine Follicular Oocytes (돼지 난포난자에서 난핵포 핵상의 형태학적 변화)

  • Park, C.K.;Sa, S.J.;Lee, S.Y.;Cheong, H.T.;Yang, B.K.;Kim, C.I.
    • Korean Journal of Animal Reproduction
    • /
    • v.24 no.2
    • /
    • pp.155-161
    • /
    • 2000
  • The morphological changes on nuclear phase of the germinal vesicle of porcine follicular oocytes during in vitro culture were examined. The high rates (75~77%) of the oocytes collected from follicles of 1~2mm or 6~100mm in diameter were at the GV-I to GV-II stages. When oocytes with or without cumulus cells after collection from follicles of 2~6mm in diameter were cultured for 5 h, the rates of oocytes at GV-IV to GV-Ⅵ stages were higher in oocytes with (52%) than in oocytes without (30%) cumulus cells. After 1 h of oocyte culture, there was no differences in the distribution of GV-IV to GV - Ⅵ stages in the media with or without catalase, xanthine and catalase+xanthine. After 5 h of culture, however, the distribution of GV-IV to GV-Ⅵ stages were 46, 69, 69 and 70% for medium with none, catalase, xanthine and catalase+xanthine. The highest rate of GVBD was also observed in the medium with catalase+xanthine (6%). These results indicate that exposure of porcine follicular oocytes to catalase+xanthine excels maturation to GV stage and enhances oocyte nuclear maturation.

  • PDF

The search and development for antitumor compounds from the marine algae (해조류 유래의 항종양성 물질의 탐색과 개발)

  • 손병화
    • Proceedings of the Korean Society of Applied Pharmacology
    • /
    • 1994.04a
    • /
    • pp.211-211
    • /
    • 1994
  • 항종양성 화합물의 개발을 지향한 해양생물 유래의 생물활성 물질의 화학적 연구의 일환으로써 다양한 종류의 생물활성 (즉, 항균작용, 혈중콜레스테롤 저하작용)등을 나타내며, 구입수가 용이한 홍조 꼬시래기 (Gracilaria verrucosa) 및 갈조 지충이 (Sargassum thunbergii)의 아세톤 및 메탄올 엑스를 EtOAc 및 n-BuOH로 분획한후 각 분획을 SiO$_2$ column, TSK gel(Toyo pearl HW-40F), $\mu$-Bondapak column 및 HPLC등으로 분리 정제하여, 새로운 glyceroglycolipid(GV-5, -6, ST-6) 및 glycerylglycoside(GV-12)를 얻었다. 이렇게 분리된 화합물의 물리화학적 성질, 화학반응 및 분광학적 data를 종합 검토한 결과 GV-5, -6, -12, 및 ST-6은 각각 1,2-diacyl-3-0-($\alpha$-D-galactopyranosyl) glycerol (acyl : palmitate-oleate-arachidonate 4: 1 : 9) (1), 1,2-diacyl -3-0-〔$\alpha$-D-galactopyranosyl -(1 "$\longrightarrow$6')-0-$\beta$-D-galactopyranosyl〕 glycerol (acyl : palmitate-oleate-arachidonate(5:1:4)(3), 2-0-($\alpha$-D-galactopyranosyl) glycerol (5), 및 sodium salt of 1-acyl-3-0-(6'-sulfo-$\alpha$-D-quinovopyranosyl) glycerol(acyl:palmitate-oleate 96:4)(8) 이라는 것이 판명되었다. 그리고 GV-5 및 -6은 마우스 백혈병세포 (L1210)에 대한 세포독성 ($IC_{50}$/ of GV-5, and -6:8.0$\mu\textrm{g}$/ml and 10.8$\mu\textrm{g}$/ml )외에, 사람의 상피암세포에 대한 성장억제효과 [growth inhibitor(%) in 20$\mu\textrm{g}$/m1 :GV-5(39.9%), GV-6(16.7%)를 나타내었으며, 한편, GV-5, GV-6, -12 및 ST-6은 각각 쥐의 F9 기형암종 세포의 분화유도 활성을 나타내어 항종양제로의 개발에 많은 흥미가 기대된다.기대된다.

  • PDF

Therapeutic Approach by Traditional Veterinary Medicine in a Case with Canine Myleomalacia: Case Report (척수연화증 개에서 전통 수의학적 방법을 이용한 치료 시도: 증례 보고)

  • Jun, Hyung-Kyou;Oh, Hyun-Uk;Lee, Hyun-Hwa;Han, Ji-Won;Lee, Byung-Kon;Park, Jin-Ho;Lee, Young-Won;Jeong, Seong-Mok;Kim, Duck-Hwan
    • Journal of Veterinary Clinics
    • /
    • v.24 no.4
    • /
    • pp.608-612
    • /
    • 2007
  • A 4-year-old castrated male Cocker spaniel was referred with chief complaint of pelvic limbs paralysis and trembling. This dog was diagnosed as a case of myelomalacia complicated with intervertebral disc disease(IVDD) by radiography and magnetic resonance imaging(MRI). This patient was treated by injection-AP with apitoxin, herbal medicine and moxibustion. The acupoints such as GV02-1, GV04, GV11, GV12, GV13, GV14, BL11, BL18, BL23, BL25, BL28, GB21, HT07, KI03, LI04, LU07, SI03, SI06, ST36, ST38, ST39, ST40, ST41, GB30, GB31, GB34, Liv03, SP06 and trigger points($T1{\sim}T4\;and\;T9{\sim}L1$) were used for treatment. At the session 1, the dog could not stand and move the limbs. However, gradual improvement of clinical signs was observed after 7, 14 and 21 session of treatment. Although the clinical signs related to pelvic paralysis were not completely abolished with TVM methods, this case showed the marked improvement of clinical signs after 21 sessions of treatment. In conclusion, the present patient was a case with canine myelomalacia complicated with IVDD which showed not so complete but somewhat improvement by TVM method.

Effects of Electroacupuncture at Some Acupoints on the Cardiovascular System in Dogs Anesthetized with Tiletamine/zolazepam (Tiletamine/zolazepam 마취견에서 전침자극이 순환기계에 미치는 영향)

  • 강한샘;장환수;이문학;엄기동;장광호
    • Journal of Veterinary Clinics
    • /
    • v.20 no.2
    • /
    • pp.224-228
    • /
    • 2003
  • This study was performed to evaluate the effect of electroacupuncture at some acupoint combinations on the cardiovascular system, especially on blood pressure. Electroacupuncture at acupoint combinations of CV2O(+)/GV-16(-),4(+)/GV16(-), KI1(+)/GV20(-), and HT9(+)/GV16(-) did not changed heart rates and blood pressure, but stimulation of HT1(+)/HT7(-) Increased systolic, diastolic and mean arterial blood pressure significantly in dogs anesthetized with tiletamine/zolazepam.

Philological study on Acupuncture & Moxibustion Treatment of Infantile Convulsion (소아(小兒) 경풍(驚風)의 침구치료(鍼灸治療)에 대(對)한 문헌적(文獻的) 고찰(考察))

  • Park, Jee-su;Kim, Yun-hee;Yoo, Dong-youl
    • Journal of Haehwa Medicine
    • /
    • v.10 no.1
    • /
    • pp.471-482
    • /
    • 2001
  • Infantile Convulsion, one of common emergency symptoms in pediatrics, arises from sudden derangement of the central nerve system, and can cause a sudden loss of consciousness and spasm. It falls into three categories: Acute Infantile Convulsion, Chronic Infantile Convulsion and Chronic Spleen Convulsion. According to research, approximately 6~7% of all babies undergo spasm more than once. Since the treatment must be done immediately, acupuncture & moxibustion treatment can be one of the most important treatments in this Particular case. Therefore, the focus of this study is on how acupuncture & moxibustion can be utilized in the treatment of Infantile Convulsion, and the literary findings are as follows: 1. The meridian points used on acute infantile convulsion are Sugu(GV26), T'aech'ung(Liv3), Hapkok(LI4). 2. The meridians used on acute infantile convulsion are Governor Vessel(GV), Bladder Meridian(BL), Stomach Meridian(ST). 3. The meridian points used on accompanied symptoms with acute infantile convulsion are Haenggan(Liv2), Yangnungch'on(Liv3) on spasm, Paek'oe(GV14) on opisthotonus, Kokchi(LI11), Taech'u(GV14) on fever, Nogung(P8), Yongch'on(K1) on fainting spell, Chok-samri(S36) on body weakness. 4. The meridian points used on chronic infantile convulsion are Shinguol(CV8), Ch'onchj'u(S25), T'aech'ung(Liv3), Kwanwon(CV4), Ch'ukt'aek(L5). 5. The meridians used on chronic infantile convulsion are Conception Vessel(CV), Governor Vessel(GV), Stomach Meridian(ST). 6. The meridian points used on accompanied symptoms with chronic infantile convulsion are Ch'onchj'u(S25), Kolli(CV11) on diarrhea, Taenung(P7), Shinmun(H7) on fainting spell, Kansu(B18), T'aech'ung(Liv3) on spasm. 7. The meridian Points and meridians are Paek'oe(GV14), Sangsung(GV23), Sugu(GV26) of Governor Vessel(GV) and Choiyung(CV16), Shinguol(CV16) of Conception Vessel(CV) and Taedon(Liv1), Changmun(Liv13).

  • PDF

A study on acupoints and muscles used for cosmetic acupuncture (미용침(cosmetic acupuncture)에 응용되는 경혈과 근육에 대한 고찰)

  • Yang, Mi-Sung;Shin, Mi-Sook
    • Korean Journal of Acupuncture
    • /
    • v.26 no.3
    • /
    • pp.13-25
    • /
    • 2009
  • Objectives : This study was performed to investigate acupoints and muscles used for cosmetic acupuncture. We want most clinicians practicing cosmetic acupuncture to understand theoretical background well and to treat cosmetic diseases more diversely by this paper. Methods : We collected useful informations from some books and websites about cosmetic acupuncture and thus could select major acupoints and muscles. Conculsions : The most frequently used acupoints for cosmetic acupoints are as follows ; LI20, ST1, ST2, ST3, ST4, ST5, ST6, ST7, ST8, SI18, SI19, BL1, BL2, BL3, BL4, TE17, TE18, TE19, TE20, TE21, TE22, TE23, GB1, GB2, GB3, GB4, GB5, GB6, GB7, GB8, GB13, GB14, GV20, GV21, GV22, GV23, GV24, GV25, GV26 and CV24. And head and neck muscles including SCM muscle, plastyma, frontalis, corrugator supercilii, orbicularis oculi, auricularis, temporalis, masseter, pterygoid, zygomaticus and risorius can be used for cosmetic acupuncture. Most acupoints and muscles are located in face and head, which seemed to be concerned with formation of face wrinkles.

  • PDF

Extracts from Gracilaria vermiculophylla Prevent Cellular Senescence and Improve Differentiation Potential in Replicatively Senescent Human Bone Marrow Mesenchymal Stem Cells (홍조류인 Gracilaria vermiculophylla 추출물에 의한 노화 골수유래 중간엽줄기세포의 항노화 및 분화능력 개선 효과)

  • Jeong, Sin-Gu;Cho, Tae Oh;Cho, Goang-Won
    • Journal of Life Science
    • /
    • v.28 no.9
    • /
    • pp.1042-1047
    • /
    • 2018
  • The red algae Gracilaria vermiculophylla is widespread on seashores worldwide and has been used as food in Asian countries. Previous studies have reported that extracts of Gracilaria red algae have beneficial anti-oxidant and anti-inflammatory effects. The present study examined the anti-senescence effects of Gracilaria vermiculophylla extracts (GV-Ex) in replicatively senescent human bone marrow mesenchymal stem cells (hBM-MSCs). GV-Ex pretreatment improved the cellular viability of hBM-MSCs that had been injured by oxidative stress. These effects of GV-Ex were confirmed by MTT assay and immunoblot analysis using the apoptotic proteins p53 and cleaved caspase-3. The reactive oxygen species (ROS) levels were examined in long-term cultured Passages 17 (P-17) mesenchymal stem cells (MSC) and compared to P-7 MSC. The ROS accumulation was greater in the P-17 than in the P-7. However, these increased ROS levels in the P-17 were decreased significantly after treatment with GV-Ex, and restoration of the levels of the anti-oxidant enzymes SOD1, SOD2, and CAT was also observed under these conditions. In addition, P-17 hBM-MSC treated with GV-Ex had decreased levels of the senescence proteins p53, p21, and p16. The results show that the ability of P-17 hBM-MSC to differentiate into osteocytes and adipocytes was improved by GV-Ex treatment, suggesting that GV-Ex ameliorates the functional decline of senescent stem cells.