• 제목/요약/키워드: RFT1

검색결과 25건 처리시간 0.024초

Overexpression of RICE FLOWERING LOCUS T 1 (RFT1) Induces Extremely Early Flowering in Rice

  • Pasriga, Richa;Yoon, Jinmi;Cho, Lae-Hyeon;An, Gynheung
    • Molecules and Cells
    • /
    • 제42권5호
    • /
    • pp.406-417
    • /
    • 2019
  • RICE FLOWERING LOCUS T 1 (RFT1) is a major florigen that functions to induce reproductive development in the shoot apical meristem (SAM). To further our study of RFT1, we overexpressed the gene and examined the expression patterns of major regulatory genes during floral transition and inflorescence development. Overexpression induced extremely early flowering in the transgenics, and a majority of those calli directly formed spikelets with a few spikelets, thus bypassing normal vegetative development. FRUITFULL (FUL)-clade genes OsMADS14, OsMADS15, and OsMADS18 were highly induced in the RFT1-expressing meristems. OsMADS34 was also induced in the meristems. This indicated that RFT1 promotes the expression of major regulatory genes that are important for inflorescence development. RFT1 overexpression also induced SEPALLATA (SEP)-clade genes OsMADS1, OsMADS5, and OsMADS7 in the greening calli before floral transition occurred. This suggested their possible roles at the early reproductive stages. We found it interesting that expression of OsFD1 as well as OsFD2 and OsFD3 was strongly increased in the RFT1-expressing calli and spikelets. At a low frequency, those calli produced plants with a few leaves that generated a panicle with a small number of spikelets. In the transgenic leaves, the FUL-clade genes and OsMADS34 were induced, but SEP-clade gene expression was not increased. This indicated that OsMADS14, OsMADS15, OsMADS18, and OsMADS34 act immediately downstream of RFT1.

Epigenetic Regulation of Human Riboflavin Transporter 2(hRFT2) in Cervical Cancers from Uighur Women

  • Ma, Jun-Qi;Kurban, Shajidai;Zhao, Jun-Da;Li, Qiao-Zhi;Hasimu, Ayshamgul
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제15권6호
    • /
    • pp.2485-2489
    • /
    • 2014
  • In the present study, we studied the hypermethylation of the human riboflavin transporter 2 (hRFT2) gene and regulation of protein expression in biopsies from resected tissues from Uighur cervical squamous cell carcinoma (CSCC) patients and their neighboring normal tissues. hRFT2 gene promoter region methylation sequences were mapped in cervical cancer cell line SiHa by bisulfite-sequencing PCR and quantitative detection of methylated DNA from 30 pairs of Uighur's CSCCs and adjacent normal tissues by MassARRAY (Sequenom, San Diego, CA, USA) and hRFT2 protein expression was analyzed by immunohistochemistry. In SiHa, we identified 2 CG sites methylated from all of 12CpG sites of the hRFT2 gene. Analysis of the data from quantitative analysis of single CpG site methylation by Sequenom MassARRAY platform showed that the methylation level between two CpG sites (CpG 2 and CpG 3) from CpG 1~12 showed significant differences between CSCC and neighboring normal tissues. However, the methylation level of whole target CpG fragments demonstrated no significant variation between CSCC ($0.476{\pm}0.020$) and neighboring normal tissues ($0.401{\pm}0.019$, p>0.05). There was a tendency for translocation the hRFT2 proteins from cytoplasm/membrane to nucleus in CSCC with increase in methylation of CpG 2 and CpG 3 in hRFT2gene promoter regions, which may relate to the genesis of CSCC. Our results suggested that epigenetic modifications are responsible for aberrant expression of the hRFT2 gene, and may help to understand mechanisms of cervical carcinogenesis.

봉독약침이 장기환자의 LFT와 RFT에 미치는 영향 (An experimental studies on the LFT, RFT of patients in Bee-venom Acupunture)

  • 이병철;천미나;양명복
    • Journal of Acupuncture Research
    • /
    • 제17권2호
    • /
    • pp.11-18
    • /
    • 2000
  • Bee-venom Acupucture has good effect on pain control but We may be anxious about the problem of Liver and Kidneys on many times treated patients. Therefore, In order to analysis the clinical form, We have observed the LFT, RFT of 37 patients who visited Won-Kwang University Kunpo Oriental Medical Hospital and treated Bee Venom therapy over 20 times from March 1999 to February 2000. The results were summarized as follows 1. The distribution of sex was 25 females, 12 males, and the average of patients age was 42.3 years 2. The distribution of disease was degenerative arthritis, HIVD of L-spine, HIVD of C-spine, spinal stenosis, RA, etc. 3. The total treated times is 1464 and the average of treated times is 39.6 times 4. The results of the LFT(AST, ALT) of 37 patients showed that normal impression is occupied 91.9% and abnormal impression is occupied 8.1%. 5. The results of the RFT(BLTN, Creatinine) of 37 patients showed that normal impression is occupied 100%. 6. The results of treatment using BV-acupunture showed that 81.1% achieved above excelent recovery 13.5% achieved above good recovery, 5.4% achieved fair recovery.

  • PDF

정읍 신정동 연구단지 및 RFT산업단지 주변 외래식물 현황 (Exotic Plant Species around Jeongeup Research Complex and RFT Industrial Complex)

  • 김진규;차민경;류태호;이윤종;김진홍
    • 방사선산업학회지
    • /
    • 제9권3호
    • /
    • pp.119-126
    • /
    • 2015
  • In Shinjeong-dong of Jeongeup, there are three government-supported research institutes and an RFT industrial complex which is currently being established. Increased human activities can affect flora and fauna as a man-made pressure onto the region. As a baseline study, status of exotic plants was investigated prior to a full operation of the RFT industrial complex. A total of 54 species and 1 variety of naturalized or introduced plants were found in the study area. Among them, three species (Ambrosia artemisifolia var. elatior, Rumex acetocella and Aster pilosus) belong to 'nuisance species', and four species(Phytolacca americana, Iopomoea hederacea, Ereechtites hieracifolia and Rudbeckia laciniata) to 'monitor species' designated by the ministry of Environment. Some of naturalized trees and plants were intentionally introduced in this area, while others naturally immigrated. Physalis angulata seemes to immigrate in the study area in the form of mixture with animal feeds as its distribution coincided with the transportation route of the animal feeds. Liquidambar styraciflua is amenable to the ecological investigation on the possible expansion of the species to the nearby Naejang National Park as its leave shape and autumn color are very similar to those of maple trees. The number of naturalized plants around the RFT industrial complex will increase with an increase in floating population, in human activities in association with constructions of factories and operations of the complex. The result of this study provides baseline data for assessing the ecological change of the region according to the operation of the RFT industrial complex.

Percutaneous Radiofrequency Thermocoagulation Under Fluoroscopic Image-Guidance for Idiopathic Trigeminal Neuralgia

  • Son, Byung-Chul;Kim, Hyung-Suk;Kim, Il-Sup;Yang, Seung-Ho;Lee, Sang-Won
    • Journal of Korean Neurosurgical Society
    • /
    • 제50권5호
    • /
    • pp.446-452
    • /
    • 2011
  • Objective : We retrospectively investigated the long-term results of percutaneous radiofrequency thermocoagulation (RFT) using fluoroscopic image-guidance for treatment of trigeminal neuralgia. Methods : A total of 38 patients diagnosed and treated with RFT as an idiopathic trigeminal neuralgia were investigated. To minimize the risks related to conventional technique based on cutaneous landmarks, and to eliminate the need to frequent reposition of cannula, we adopted a technique of image-guided fluoroscopic cannulation of the foramen ovale. To minimize sensory complication following thermal lesion, our target response was a generation of a lesion with mild to moderate hypalgesia rather than dense hypalgesia. Results : The immediate pain-relief was achieved in all patients underwent RFT. With mean duration of follow-up of 38.2 months (range,12-72), 11 (28.9%) experienced recurrence of pain. The mean timing of recurrence was 26.1 months (range,12-46). A 42.7% recurrence rate was estimated by Kaplan-Meier analysis for the 38 patients at 46 months; 20.2% within 2 years, 29.1% within 3 years. In the long-term, 27 patients (71%) and 6 patients (15.8%) showed Barrow Neurological Institute (BNI) score I and BNI score II responses. Three (7.9%) patients was assessed as BNI score III, 2 patients (5.3%) showed BNI score IV response. As a complication, troublesome dysesthesia occurred in 3 of 38 patients (7.9%), however, there was no permanent cranial nerve palsy or morbidity. Conclusion : These results indicates that RFT under fluoroscopic image-guided cannulation of foramen ovale is a safe, effective, and reliable means of treating trigeminal neuralgia.

조음과 읽기 유창성의 문제를 호소한 어지(語遲) 환자 치험 1례 (Clinic Study on the Speech Retardation Complained Problems of Articulation & Reading Fluency)

  • 강희철;정명숙;이승기
    • 동의생리병리학회지
    • /
    • 제22권6호
    • /
    • pp.1585-1588
    • /
    • 2008
  • The purpose of this study was to investigate the clinical application of oriental medical therapy(OMT) to Speech retardation complained problems of Articulation & Reading fluency. We treated the patient with OMT & others. The recovery of Speech retardation was evaluated by Articulation correction test(ACT) & Reading fluency test(RFT). The applicability of OMT & other therapy has positive effects on the patient with Speech retardation complained problems of Articulation & Reading fluency. The scores of ACT & RFT were increased.

반응향을 적용한 게향미제 Base의 휘발성 향기성분 (Volatile Flavor Compounds of a Crab-like Flavoring Base Made Using Reaction Flavor Technology)

  • 안준석;정은정;차용준
    • 한국식품영양과학회지
    • /
    • 제43권1호
    • /
    • pp.102-109
    • /
    • 2014
  • 4개의 아미노산류(proline 0.29 g, glycine 0.63 g, arginine 0.61 g, methionine 0.02 g)와 과당(fructose 1.07 g)을 홍게 농축자숙액(100 mL, 20oBrix)에 넣고 반응향(reaction flavor)을 유도한 게 향미제 base(CFB)의 휘발성 향기성분을 분석하였다. 총 74종의 휘발성 성분이 검출되었는데, 원료에서는 30개의 화합물이, 대조구에서는 34개, CFB에서는 55종의 화합물이 검출되었으며, 반응향 유도 가열반응에 의해 많은 휘발성 화합물이 생성된 것을 알 수 있었다. 그룹별로 보면 함질소화합물(19종의 pyrazine류, 4종의 pyridine류)이 반응향 유도를 통하여 가장 많이 검출되었고, 대조구에 비해 27배 이상의 함량 증가가 있었다. 함황화합물류(7종)에서는 dimethyl trisulfide 및 dimethyl disulfide 등 2종의 화합물이 전체 함량의 대부분을 차지하였고 반응을 통하여 유의성 있게 증가하였다. 방향족화합물의 종류와 함량은 원료(12종) 및 대조구(3종)에서 반응향 반응을 통하여 CFB(3종)에서는 오히려 감소하였다. Pearson's 상관분석 결과 tetramethylpyrazine, 2-ethyl-3,5,6-trimethylpyrazine 2,3,5-trimethyl-6-(3-methyl butyl) pyrazine, 2-ethyl-3,5-dimethylpyrazine, 2,5-dimethyl-3-(3-methylbutyl)pyrazine, 2-ethyl-3,6-dimethylpyrazine 및 2-decanone 등 7종의 화합물이 CFB의 관능적 향에 영향을 미치는 것으로 나타났다.

게 향미제의 저장중 품질특성 변화 (Changes in the Quality of Crab-like Flavorants during Storage)

  • 백정화;정은정;전선영;차용준
    • 한국수산과학회지
    • /
    • 제45권2호
    • /
    • pp.104-113
    • /
    • 2012
  • Crab-like flavorants (CFs) were made from snow crab cooker effluent (SCCE) using response surface methodology (RSM) and reaction flavoring technology (RFT). Type A CF was made from SCCE via RSM, RFT, adding starch syrup, centrifugation, and microfiltration. Type B was made from type A by adding the food additives dimethyl sulfide, ethyl valerate and fish sauce. The stability of the CFs was evaluated in terms of the color values, sensory evaluation, and flavor profiles after storage for 90 days at three different temperatures: 10, 20, and $30^{\circ}C$. The compounds, ethanol and 3-methyl-1-butanol, were considered key components of off-flavor and a decrease in dimethyl-2-vinylpyrazine affected the occurrence of off-flavor. It may be a microbial metabolite arising from contamination and lab-scale micro-filtration. At the lowest temperature ($10^{\circ}C$), the decrease in volatile compounds, such as pyrazines, was not as dramatic as at $20^{\circ}C$ and $30^{\circ}C$ and alcohol formation was prevented or delayed. Therefore, it is necessary to store CFs at < $10^{\circ}C$ with suitable sterilization to preserve volatile flavor compounds and prevent off-flavor from occurring.

급성 파라콰드중독후 생존한 15예 환자의 임상적 고찰 (Clinical study of the 15patients survived after acute paraquat intoxication)

  • 김동웅
    • 대한예방한의학회지
    • /
    • 제3권1호
    • /
    • pp.36-36
    • /
    • 1999
  • From January 1994 to April 1997, there was 15 survivals who was admitted to the department of internal medicine, Wonkwang Oriental Medicine' Hospital in Cheun-ju, after ingestion of paraquat, and treated with Oriental and western medicine therapy. For the patients, I investigated clinical symptoms, gastroduodenoscopy, intake by oral and parenteral route, and output by urine and stool, serum ALP, AST. ALT, Bilirubin, BUN, Creatinine level and urine analysis. On admission day, the LFT level was as follows. The serum mean ALP, AST, ALT, Total Bilirubin and Direct Bilirubin was 10.05${\pm}$2.75 KAU, 66.67${\pm}$9.88 IU/L, 43.80${\pm}$7.74 IU/L, 1.89${\pm}$1.22 ㎎/dl and 1.10${\pm}$1.14 ㎎/dl respectively. After that day, administered Gamdutang and checked the mean LFT level regullary. Until the 3rd day, the mean ALP, AST, ALT, Total Bilirubin and Direct Bilirubin level was 11.0l${\pm}$3.16 KAU, 56.47${\pm}$7.19 IU/L, 59.00${\pm}$7.57 IU/L, 2.54${\pm}$1.78 ㎎/dl, 1.64${\pm}$1.59 ㎎/dl respectively. From 4th day to 7th day, the mean ALP; AST, ALT, Total Bilirubin and Direct Bilirubin level was 12.51${\pm}$3.49 KAU, 77.85${\pm}$7.17 IU/L, 58.00${\pm}$9.09 IU/L, 2.54${\pm}$1.97 ㎎/dl, and 1.80${\pm}$1.81 ㎎/dl respectively. From 8th day to 10th day, the mean ALP, AST, ALT, Total Bilirubin and Direct Bilirubin level was 12.43${\pm}$3.14 KAU, 41.13${\pm}$6.49 IU/L, 50.40${\pm}$7.17 IU/L, 1.66${\pm}$1.90 ㎎/dl and 1.14${\pm}$1.50 ㎎/dl respectively. From 11th day to 14th day, the mean ALP, AST, ALT, Total Bilirubin and Direct Bilirubin level was 12.30${\pm}$3.25 KAU, 31.07${\pm}$3.85 IU/L, 43.33${\pm}$5.49 IU/L, 1.62${\pm}$1.95 ㎎/dl, 1.17${\pm}$1.71 ㎎/dl respectvely. On admission day, the mean RFT level as follows. Serum BUN and Creatinine level was 28.73${\pm}$5.19 ㎎/dl and 1.82${\pm}$1.27 ㎎/dl respectively. After that day, administered Gamdutang and checked the mean RFT level regullary. Until the 3rd day, the mean BUN and Creatinine level was 32.12${\pm}$5.65 ㎎/dl and 2.31${\pm}$0.45 ㎎/dl respectively. From 4th day to 7th day, the mean BUN and Creatinine level was 31.07${\pm}$5.47 ㎎/dl and 1.92${\pm}$0.79 ㎎/dl respectively. From 7th day to 10th day, the mean BUN and Creatinine level was 17.47${\pm}$3.57 ㎎/dl and 1.33${\pm}$0.59 ㎎/dl respectively. From 11th day to 14th day, the mean BUN and Creatinine level was 11,93${\pm}$3.16 ㎎/dl, 1.27${\pm}$0.38 ㎎/dl respectively.