• Title/Summary/Keyword: induction technique

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Conservation Status and Restoration of Evergreen Broad-leaved Forests in Warm Temperate Region, Korea( II ) -Restoration Planning of Vegetation in a Case Study Areas- (난온대 상록활엽수림 보전실태 및 복원(II) -사례지의 식생복원계획-)

  • 오구균;박석곤
    • Korean Journal of Environment and Ecology
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    • v.17 no.1
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    • pp.71-82
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    • 2003
  • To set out restoration plan of Evergreen Broad-Leaved Forests(EBLF), a case study was done at Wando arboretum, Sinjido and Jangdo(Island). Firstly, basic environmental survey was done and the degrade levels of EBLF was assessed. And the forest functions and restoration goal of vegetation have been established before considering and setting restoration types of vegetation and restoration techniques. Taking social demand and restoration goal etc. into consideration, the forest functions were classified into a ecosystem preservation, scenery conservation and timber production. Quercus acuta Forest, Castanopsis siebodii Forest, Persea thunbergii Forest, Cinnamomum japonicum Forest, Dendropanax morbifera Forest etc. were suggested as a restoration goal of vegetation. Restoration types of vegetation were classified into a preservation type, restoration type, reconstruction type and afforestation type. And restoration techniques were subdivided into a preservation, induction, improvement, and creation according to the degraded levels of EBLF.

Evaluation of the Hypothalamic-pituitary Function by Premarin Test for the Patients of Amenorrhea (Premarin검사를 이용한 무월경환자에서의 시상하부-뇌하수체의 기능평가)

  • Lee, J.W.;Rha, J.G.
    • Clinical and Experimental Reproductive Medicine
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    • v.11 no.2
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    • pp.17-25
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    • 1984
  • Hypothalamic-pituitary function in patients of 6 selected groups of amenorrhea was evaluated by performing premarin test. Selected amenorrheic patients were divided into 6 groups of Turner's syndrome(5), adrenogenital syndrome(3), Sheehan's syndrome(4), moderate hyperprolactinemia(3), severe hyperprolactinemia(9) and functional oligoamenorrhea(9) the diagnoses of which were performed according to modified our own protocol for management of amenorrheic patients. As control 20 normally cycling women in mid follicular phase determined by their symptothermal charts during last 6 months designed by WHO were compared. The premarin test which is one of the tests evaluating the hypothalamic-pituitary function by the principle of negative and positive feed back effect's of estrogen was performed by injecting 20 mg of premarin in volus intravenously. The levels of serum LH before, 24, 48, 72, 96 and 120 hours after injection of premarin were measured by double antibody technique radioimmunoassay the reagents of which were supplied by WHO. The results were as follows: 1. Both negative and positive feed back effects by exogenous estrogen were well preserved even in the patients of gonadal dysgenesis although the baseline levels were much higher than normal. 2. In the patients of Sheehan's syndrome one could observe the minimal response of feed back effect in the case with minimal pituitary function. 3, Androgens in adrenogenital syndrome and prolactin in hyperprolactinemia may suppress mainly the positive feed back effect rather than the negative one. The suppressive effect can be abolished by proper treatments which can eliminate those suppressive hormones. 4. This premarin test may be beneficial for predicting the result of clomiphene in ovulation induction.

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Staging with PET-CT in Patients with Locally Advanced Non Small Cell Lung Cancer is Superior to Conventional Staging Methods in Terms of Survival

  • Mutlu, Hasan;Buyukcelik, Abdullah;Erden, Abdulsamet;Aslan, Tuncay;Akca, Zeki;Kaya, Eser;Kibar, Mustafa;Seyrek, Ertugrul;Yavuz, Sinan;Calikusu, Zuleyha
    • Asian Pacific Journal of Cancer Prevention
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    • v.14 no.6
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    • pp.3743-3746
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    • 2013
  • Background: Of patients with non small cell lung cancer (NSCLC), around one third are locally advanced at the time of diagnosis. Because only a proprotion of stage III patients can be cured by surgery, in order to improve the outcomes, sequential or concurrent chemoradiation, or concurrent chemoradiation with induction or consolidation is offered to the patients with locally advanced NSCLC. Today, PET combined with computerized tomography (PET-CT) is accepted as the most sensitive technique for detecting mediastinal lymph node and extracranial metastases from NSCLC. We aimed to compare PET-CT and conventional staging procedures for decisions regarding curative treatment of locally advanced NSCLC. Materials and Methods: A total of 168 consecutive patients were included from Acibadem Kayseri Hospital, Acibadem Adana Hospital and Kayseri Research and Training Hospital in this study. Results: While the median PFS was $13.0{\pm}1.9$ months in the PET-CT group, it was only $6.0{\pm}0.9$ in the others (p<0.001). The median OS values were $20.5{\pm}15.6$ and $11.5{\pm}1.5$ months, respectively (p<0.001). Discussion: As a result, we found that staging with PET CT has better results in terms of survival staging. This superiority leads to survival advantage in patients with locally advanced NSCLC.

Comparison of ondansetron and granisetron for antiemetic prophylaxis in maxillofacial surgery patients receiving general anesthesia: a prospective, randomised, and double blind study

  • Savant, Kiran;Khandeparker, Rakshit Vijay Sinai;Berwal, Vikas;Khandeparker, Purva Vijay;Jain, Hunny
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • v.42 no.2
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    • pp.84-89
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    • 2016
  • Objectives: To compare the efficacy of intravenous ondansetron (4 mg, 2 mL) and granisetron (2 mg, 2 mL) for preventing postoperative nausea and vomiting (PONV) in patients during oral and maxillofacial surgical procedures under general anesthesia. Materials and Methods: A prospective, randomized, and double blind clinical study was carried out with 60 patients undergoing oral and maxillofacial surgical procedures under general anesthesia. Patients were divided into two groups of 30 individuals each. Approximately two minutes before induction of general anesthesia, each patient received either 4 mg (2 mL) ondansetron or 2 mg (2 mL) granisetron intravenously in a double blind manner. Balanced anesthetic technique was used for all patients. Patients were assessed for episodes of nausea, retching, vomiting, and the need for rescue antiemetic at intervals of 0-2, 3, 6, 12, and 24 hours after surgery. Incidence of complete response and adverse effects were assessed at 24 hours postoperatively. Data was tabulated and subjected to statistical analysis using the chi-square test, unpaired t-test, or the Mann-Whitney U-test as appropriate. A P-value less than 0.05 was considered statistically significant. Results: There was no statistically significant difference between the two groups for incidence of PONV or the need for rescue antiemetic. Both study drugs were well tolerated with minimum adverse effects; the most common adverse effect was headache. The overall incidence of complete response in the granisetron group (86.7%) was significantly higher than the ondansetron group (60.0%). Conclusion: Granisetron at an intravenous dose of 2 mg was found to be safe, well tolerated, and more effective by increasing the incidence of complete response compared to 4 mg intravenous ondansetron when used for antiemetic prophylaxis in maxillofacial surgery patients receiving general anesthesia. Benefits of granisetron include high receptor specificity and high potency, which make it a valuable alternative to ondansetron.

The analysis of Influence between Eco-friendly Planning Elements in Metropolitan 2th Newtown and the deal price of Apartment House (수도권 제2기 신도시 내 친환경 계획요소와 아파트 실거래가격간의 영향도)

  • Jung, Sung-Hoon;Kim, Jeong-In
    • Journal of Environmental Policy
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    • v.12 no.1
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    • pp.3-35
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    • 2013
  • Through Influence between the qualitative Environment-friendly Planning Elements (Independent variable) of eighty Apartment House on the four boundary areas in Metropolitan 2th Newtown as representative case of domestic Composition case of Eco-City and the quantitative deal price of Apartment House (dependent variable), it was analyzed empirically with use of the statistical measuring technique. This study has been meaning that it was groped the scheme of quantitative measuring analysis on environmental economics through the developmental extention for he classification system of the qualitative Environment-friendly Planning Elements on urban & architecture. And, As the result of empirical analysis, it was confirmed empirically that the economical induction effect was much more weight and worthy of notice through Environment-friendly Planning Elements in Metropolitan 2th Newtown influenced to the deal price of Apartment House, particularly it was found noticeable meaning that Environment-friendly Planning Elements of applicabled the green new techniqe like New & Renewable Energy were used already and it was influenced much to the deal price of Apartment House.

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Spawning and Larval Development of the Jicon Scallop, Chlamys farreri (비단가리비, Chlamys farreri의 산란과 유생사육)

  • Park Ki-Yeol;Kim Su-Kyoung;Seo Hyung-Chul;Ma Chae-Woo
    • Journal of Aquaculture
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    • v.18 no.1
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    • pp.1-6
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    • 2005
  • This study focused on spawning season, induce spawning, spawning and larval development of the Jicon scallop in Daehuksan Island of southwestern waters in Korea. The condition index and gonadosomatic index were used to investigate the reproductive pattern of the Jicon scallop. The major spawning season was from July to August, showing an unimodal gametogenic cycle per year. Several different tests were carried out to induce spawning of the mature male and female C. farreri. For females, the injection of serotonin, temperature induction technique and the combination of the both treatments produced significantly faster gamete release. Unlike females, males spawned only in response to the UV rays irradiation stimulation. Mean size of fertilized eggs was 69.5 $\mu$m in diameter. After fertilization, the zygote could be divided into 2 cells as early as 2 hours. It took about 8 hours to develop the 8-cell stage, about 20 hours to hatch trochophore larvae, and about 40 hours to be D-shaped larvae.

Regeneration of Plants from EMS-treated Immature Embryo Cultures in Soybean [Glycine max(L.) Merr.]

  • Van, Kyu-Jung;Jang, Hyun-Ju;Jang, Young-Eun;Lee, Suk-Ha
    • Journal of Crop Science and Biotechnology
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    • v.11 no.2
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    • pp.119-126
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    • 2008
  • Since somatic embryogenesis combined with ethylmethane sulfonate(EMS) treatments is the most efficient technique for mutagenesis, the embryogenic capacity of four soybean cultivars was evaluated at different EMS concentrations, treatment times, and preculture durations. Two to 4 mm long immature cotyledons were placed in induction medium after EMS treatment, and the numbers of somatic embryos formed per explant were counted four weeks after culture initiation. We observed genotypic differences in the efficiency of somatic embryogenesis from immature embryos among four cultivars treated with different concentrations of EMS for six hours. Cultivars, Sinpaldalkong 2 and Jack, displayed highly efficient somatic embryogenesis regardless of EMS concentration, whereas very low efficiency or no survival was observed in Jinju 1 and Iksannamulkong cultivars. Preculture duration did not influence the efficiency of somatic embryogenesis. Because Sinpaldalkong 2 exhibited the best somatic embryogenesis, much higher concentrations of EMS were used to test somatic embryo formation under different periods of time in this cultivar. Three and six hour treatments with both 1 and 2 mM EMS yielded higher embryo formation than longer periods of time. Increasing the time with embryos in 2 mM EMS caused a reduction in somatic embryogenesis in Sinpaldalkong 2, but many chlorophyll-deficient soybean variants were identified in the $M_1R_0$ and $M_2R_1$ generations. In addition to Jack, Sinpaldalkong 2 is a good genotype for plant regeneration from EMS-treated immature embryo cultures.

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Genome Wide Expression Analysis of the Restored Changes by Carthami Flos Extract Treatment on Rat Brain Injury (흰쥐의 손상된 뇌조직에서의 유전자 발현 변화에 대한 홍화(紅花) 추출물 투여의 작용)

  • Kim, Bu-Yeo;Limb, Se-Hyun;Lee, Guem-San;Kim, Hyung-Woo;Lim, Chi-Yeon;Cho, Su-In
    • The Journal of Internal Korean Medicine
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    • v.31 no.4
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    • pp.706-713
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    • 2010
  • Objectives : The source is from the flower of Carthamus tinctorius L., family Compositae. It is used in clinical medicine to promote blood circulation, remove blood stasis, promote menstruation and alleviate pain. In the present study, we investigated the genome wide analysis of Carthami Flos on the intra-cranial hemorrhage(ICH) model. Methods : ICH in rat was induced by injection of collagenase type IV and Carthami Flos extract(CFe) was administered orally. The molecular profile of cerebral hemorrhage in rat brain tissue was measured using microarray technique to identify up- or down- regulated genes in brain tissue. Results : Expression profile showed that diverse genes were up- or down-regulated by ICH induction. Administration of CFe restored the expression level of some of altered genes by ICH to normal expressional level. Interestingly, these recovered genes by CFe were involved in the same biological pathways which were significantly activated or suppressed by ICH. Conclusion : The above results might explain the therapeutic mechanism of CFe on ICH. Further, by analyzing interaction network, core genes was identified which could be key molecular targets of CFe against ICH.

Analysis of Body Induced Current in Middle Frequency Range Using Quasi-Static FDTD (중간주파수 대역에서 준정적(Quasi-Static) FDTD 기법을 이용한 인체 유도전류 분석)

  • Byun, Jin-Kyu
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.23 no.1
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    • pp.141-149
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    • 2009
  • In this paper, quasi-static FDTD method is implemented by FORTRAN programming, and it is used for analysis of body induced current in middle frequencies. The quasi-static FDTD program is validated by comparing the calculation result with analytic solution of the test model, to which it is difficult to apply conventional FDTD. It is confirmed that the time-step is reduced by $5.68{\times}10^6$ times. Using validated numerical technique, body induced current distribution in high resolution 3-D human model is calculated for 20[kHz] magnetic field exposure and 1[MHz] electric field exposure. Also, the effect of grounding condition of both feet on the distribution and amplitude of the induced current is analyzed. It is expected that this research can be applied to various fields including safety assessment of body induced current and development of diagnosis devices using bio-electricity.

Milk Fat Globule-Epidermal Growth Factor VIII Ameliorates Brain Injury in the Subacute Phase of Cerebral Ischemia in an Animal Model

  • Choi, Jong-Il;Kang, Ho-Young;Han, Choongseong;Woo, Dong-Hun;Kim, Jong-Hoon;Park, Dong-Hyuk
    • Journal of Korean Neurosurgical Society
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    • v.63 no.2
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    • pp.163-170
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    • 2020
  • Objective : Milk fat globule-epidermal growth factor VIII (MFG-E8) may play a key role in inflammatory responses and has the potential to function as a neuroprotective agent for ameliorating brain injury in cerebral infarction. This study aimed to determine the role of MFG-E8 in brain injury in the subacute phase of cerebral ischemia in a rat model. Methods : Focal cerebral ischemia was induced in rats by occluding the middle cerebral artery with the modified intraluminal filament technique. Twenty-four hours after ischemia induction, rats were randomly assigned to two groups and treated with either recombinant human MFG-E8 or saline. Functional outcomes were assessed using the modified Neurological Severity Score (mNSS), and infarct volumes were evaluated using histology. Anti-inflammation, angiogenesis, and neurogenesis were assessed using immunohistochemistry with antibodies against ionized calcium-binding adapter molecule 1 (Iba-1), rat endothelial cell antigen-1 (RECA-1), and bromodeoxyuridine (BrdU)/doublecortin (DCX), respectively. Results : Our results showed that intravenous MFG-E8 treatment did not reduce the infarct volume; however, the mNSS test revealed that neurobehavioral deficits were significantly improved in the MFG-E8-treated group than in the vehicle group. Immunofluorescence staining revealed a significantly lower number of Iba-1-positive cells and higher number of RECA-1 in the periinfarcted brain region, and significantly higher numbers of BrdU- and DCX-positive cells in the subventricular zone in the MFG-E8-treated group than in the vehicle group. Conclusion : Our findings suggest that MFG-E8 improves neurological function by suppressing inflammation and enhancing angiogenesis and neuronal proliferation in the subacute phase of cerebral infarction.