• Title/Summary/Keyword: parr

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Application of Immunophenotyping and Heteroduplex Polymerase Chain Reaction (hPARR) for Diagnosis of Canine Lymphomas

  • Sirivisoot, Sirintra;Techangamsuwan, Somporn;Tangkawattana, Sirikachorn;Rungsipipat, Anudep
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.6
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    • pp.2909-2916
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    • 2016
  • Background: Canine malignant lymphoma is classified into B- or T-cell origin, as in the human case. Due to differences in prognosis, a suitable method needs to be developed for lineage identification. Aims: To determine the accuracy of immunophenotypic and molecular information between three methods: immunocytochemistry (ICC), immunohistochemistry (IHC) and heteroduplex polymerase chain reaction for antigen receptor rearrangements (hPARR) in spontaneous canine lymphomas. Materials and Methods: Peripheral blood, fine needle aspiration and tissue biopsies from enlarged peripheral lymph nodes prior to treatment of 28 multicentric lymphoma patients were collected. Cytopathology and histopathology were examined and classified using the updated Kiel and WHO classifications, respectively. Anti-Pax5 and anti-CD3 antibodies as B- and T-cell markers were applied for immunophenotyping by ICC and IHC. Neoplastic lymphocytes from lymph node and white blood cell pellets from peripheral blood were evaluated by hPARR. Results: In this study, low grade B-cell lymphoma accounted for 25% (7/28), high grade B-cell lymphoma for 64.3% (18/28) and high grade T-cell lymphoma for 10.7% (3/28). According to the WHO classification, 50% of all cases were classified as diffuse large B-cell lymphoma. In addition, ICC showed concordant results with IHC; all B-cell lymphomas showed Pax5+/CD3, and all T-cell lymphomas exhibited Pax5-/CD3+. In contrast to hPARR, 12 B-cell lymphomas featured the IgH gene; seven presented the $TCR{\gamma}$ gene; five cases showed both IgH and $TCR{\gamma}$ genes, and one case were indeterminate. Three T-cell lymphomas showed the $TCR{\gamma}$ gene. The percentage agreement between hPARR and ICC/IHC was 60%. Conclusions: Immunophenotyping should not rely on a single method. ICC or IHC with hPARR should be used concurrently for immunophenotypic diagnosis in canine lymphomas.

Effects of Recombinant Aquaporin 3 and Seawater Acclimation on the Expression of Aquaporin 3 and 8 mRNAs in the Parr and Smolt Stages of Rainbow Trout, Oncorhynchus mykiss

  • Kim, Na Na;Choi, Young Jae;Lim, Sang-Gu;Kim, Bong-Seok;Choi, Cheol Young
    • Ocean and Polar Research
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    • v.38 no.2
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    • pp.103-113
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    • 2016
  • This study aimed to examine the role of two aquaporin isoforms (AQP3 and AQP8) in response to the hyperosmotic challenge of transitioning from freshwater (FW) to seawater (SW) during parr and smoltification (smolt) using the rainbow trout, Oncorhynchus mykiss. We examined the changes in the expression of AQPs mRNAs in the gills and intestine of the parr and smolt stages of rainbow trout transferred from FW to SW using quantitative real-time PCR in an osmotically changing environment [FW, SW, and recombinant AQP3 (rAQP3) injection at two dosage rates]. Correspondingly, AQPs were greater during smoltification than during parr stages in the rainbow trout. Plasma osmolality and gill $Na^+/K^+$-ATPase activity increased when the fish were exposed to SW, but these parameters decreased when the fish were exposed to SW following treatment with rAQP3 during the transition to seawater. Our results suggest that AQPs play an important role in water absorbing mechanisms associated with multiple AQP isoforms in a hyperosmotic environment.

Design of Finite Field Multiplier based on KOA (KOA 기반의 유한체 승산기 설계)

  • Byun, Gi-Young;Na, Gi-Soo;Kim, Heung-Soo
    • Journal of IKEEE
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    • v.8 no.1 s.14
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    • pp.1-11
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    • 2004
  • This paper proposes new multiplicative techniques over finite field, by using KOA. At first, we regenerate the given polynomial into a binomial or a trinomial to apply our polynomial multiplicative techniques. After this, the product polynomial is archived by defined auxiliary polynomials. To perform multiplication over $GF(2^m)$ by product polynomial, a new mod $F({\alpha})$ method is induced. Using the proposed operation techniques, multiplicative circuits over $GF(2^m)$ are constructed. We compare our circuit with the previous one as proposed by Parr. Since Parr's work is premised on $GF((2^4)^n)$, it will not apply to general cases. On the other hand, the our work more expanded adaptive field in case m=3n.

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Comparison of polymerase chain reaction for antigen receptor gene rearrangement and flow cytometric analysis for the diagnosis of canine lymphoma

  • Song, Ru-Hui;Yu, Do-Hyeon;Kim, Jun-Hwan;Lee, Hyun-Seok;Lee, Da-Mi;Park, Chul;Yu, Il-Jung;Park, Jin-Ho
    • Korean Journal of Veterinary Service
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    • v.34 no.3
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    • pp.265-271
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    • 2011
  • Lymphoma is the most common hematopoietic malignancy in dogs. Diagnosis of lymphoma is classically performed by morphological assessment and immunohistochemistry. But some cases in the early stage are difficult to distinguish and need more objective and accurate methods. So, Polymerase chain reaction (PCR) for antigen receptor rearrangements (PARR) and flow cytometric immunophenotype of lymphoma have been developed continuously. In this study, we performed these two methods to classify lymphoma type in 3 cases. According to PARR analysis, B cell origin lymphoma was diagnosed in two of three cases by testing PBMC and lymph node. All fine needle aspiration (FNA) samples of lymph nodes had high expression of CD21 on >88% of total cell population and PBMC samples also showed high expression of CD21 on >30% of total lymphocytes in those two cases, while the expression of CD3, CD4 and CD8 was absent. These results suggest that concurrent use of PARR and flow cytometric immunophenotype is more effective and valuable tool for the diagnosis and monitoring of canine lymphoma patients.

Synthesis of Pentasil Zeolites (펜타실 제올라이트의 합성에 관한 연구)

  • Ahn, Byung-Joon;Chon, Hak-Ze
    • Journal of the Korean Chemical Society
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    • v.32 no.2
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    • pp.149-155
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    • 1988
  • Pentasil zeolites, including ZSM-5, ZSM-8, ZSM-11 and silicalites, were synthesized using various organic cations. Synthesis run was carried out in a Parr pressure reactor of $2{\ell}$ capacity and a self-constructed reactor with a magnetic stirring system. The reactant materials used are colloidal silica (Snowtex), sodium aluminate, sodium chloride, TEA, TPA, TBA, Choline and water. The composition of starting materials and the reaction temperature were found to be important factors for the synthesis of uniform pentasil zeolites.

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Refractive Index Matching and Clear Emulsions

  • Sun, James-Ziming;James W. Parr
    • Proceedings of the SCSK Conference
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    • 2003.09a
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    • pp.374-386
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    • 2003
  • Two ways of making clear emulsions\ulcornerMicroemulsion Visible light λ = 400-700 nm Microemulsion, d < 50 nmㆍRefractive Index Matching(omitted)

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Generalized Integral Hellmann-Feynam Theorem and Configuration Interaction in Crystal Field Theory (광의의 Integral Hellmann-Feynman Theorem과 결정장론에서의 배치간 작용의 효과)

  • Ho Jing Kim
    • Journal of the Korean Chemical Society
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    • v.20 no.3
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    • pp.198-205
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    • 1976
  • The integral Hellmann-Feynman Theorem of Parr is generalized to give a full significance to the off-diagonal form, and certain aspects of it are discussed. By use of the generalized form of the theorem, effects of configuration interaction to the crystal field theory are examined, taking perturbation energies of all order collectively into account. Thus, it is shown that there do not exist, especially when the field is strong, the radial integral which is common to all states characterized by ${\Gamma}$, S and m, and could be parametrized. If, however, one restricts the perturbing excited states only to those angularly undistorted and radially equally distorted, there results simple scaling of the crystal field parameter 10 Dq and Condon-Slater parameter $F^n$ defined within the framework of the classical crystal field theory.

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Relationship between the Molecular Structure and the Absorption Band Shape of Organic Dye (유기색소의 흡수대 형태와 분자구조와의 상관성)

  • Jun, Kun;Gwon, Seon Yeong;Kim, Sung Hoon
    • Textile Coloration and Finishing
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    • v.27 no.4
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    • pp.270-274
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    • 2015
  • Molecules always show broad absorption band envelopes, and this results from the vibrational properties of bonds. The width of an absorption band can have an important influence on the color of a dye. A narrow band imparts a bright, spectrally pure color to the dye, whereas a broad band can give the same hue, but with a much duller appearance. Typically, half-band widths of cyanine dyes are about 25nm compared to value of over 50nm for typical merocyanine dyes. Thus, cyanine dyes are exceptionally bright. The factors influencing the width of an absorption band can be understood with reference to the Morse curves. The width of the absorption band depends on how closely the bond order of the molecules in the first excited state resembles that in the ground state. We have quantitatively evaluated the "molecular structure-absorption band shape" relationship of dye molecules by means of Pariser-Parr-Pople Molecular Orbital Method(PPP-MO).

Effects of Photoperiods and Body Size on the Off-season Smolt Production of Atlantic Salmon Salmo salar in a Recirculating Aquaculture System (순환여과양식시스템에서 광주기 및 어체 크기가 대서양연어(Salmo salar)의 Off-season Smolt 생산에 미치는 영향)

  • Kim, Youhee;Kim, Pyong Kih
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.55 no.6
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    • pp.894-902
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    • 2022
  • This study investigated the effects of photoperiod (NL 12L:12D and LL 24L:0D) and body sizes (30 g and 50 g) on parr-smolt transformation, post-smolt growth and blood properties in the off-season parr-smolt stage of Atlantic salmon reared in a recirculating aquaculture system (RAS). Potential off-season salmon smolt were reared in a freshwater RAS for 80 days and then all experimental fish were transferred to seawater. In both LL groups (LL-30 and LL-50), we recorded and increase in specific growth rate and reduction in feed conversion, although there were no significant difference in body size. The values of osmolality, and serum Na+, Cl- and cortisol concentrations in the LL groups were maintained at lower levels than in NL group fish, and LL group fish were observed to recover to the pre-seawater adaptation state more rapidly than those in the NL group. ID chips were inserted in all smolts reared in freshwater. These fish were subsequently transferred to full-strength seawater and thereafter individual growth rates were monitored for 120 days. The results indicated that compared with smolt reared under natural photoperiodic condition, 24 h lighting in freshwater contributed to enhancing post-smolt specific growth rate in seawater.