• Korean Journal of Acupuncture
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• v.27 no.2
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• pp.95-105
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• 2010

Objectives : The purpose of this study is to investigate the effect of Bacillus-fermented Scutellariae Radix acupuncture solution (SB) on interleukin(IL) production in mouse macrophage stimulatedby lipopolysaccaride(LPS). Methods : Productions of interleukins were measured y High-throughput Multiplex Bead based Assay with Bio-plex Suspension Array System based on $xMAP^{(R)}$(multi-analyte profiling beads) technology. To begin with, cell culture supernatant was obtained after treatment with LPS(1 ${\mu}g/mL$) and SB for 24 hour. Then, it was incubated with the antibody-conj${\mu}g$ated beads for 30 minutes. And detection antibody was added and incubated for 30 minutes. After incubating for 30 minutes, Strepavidin-conjugated Phycoerythrin(SAPE) was then added. Incubating for another 30 minutes, the level of SAPE fluorescence was analyzed on Bio-plex Suspension Array System. Results : The results of the experiment are as follows. SB significantly inhibited the LPS-induced production of IL-3($9.15{\pm}0.35$ pg/mL) by $6.92{\pm}0.05,\;7.21{\pm}0.11,\;6.96{\pm}0.33,\;and\;7.45{\pm}0.74$ pg/mL at the concentration of 25, 50, 100, and 200 ${\mu}g/mL$ in mouse macrophage RAW 264.7 cells (p<0.05). SB significantly inhibited the LPS-induced production of IL-5($7.30{\pm}0.48$ pg/mL) by $6.50{\pm}0.29,\;6.30{\pm}0.25,\;6.30{\pm}0.25,\;and\;5.80{\pm}0.25$ pg/mL at the concentration of 25, 50 100, and 200 ${\mg}g/mL$ in RAW 264.7 cells (p<0.05). SB significantly inhibited the LPS-induced productiion of IL-9($17.26{\pm}0.19$ pg/mL) by $15.01{\pm}0.43$ pg/mL at the concentration of 25 ${\mu}g/mL$ in RAW 264.7 cells(p<0.05). SB significantly inhibited the LPS-induced productioh of IL-13($187.80{\pm}2.90$ pg/mL) by $152.80{\pm}4.25,\;172.80{\pm}3.97,\;162.10{\pm}6.67,\;and\;165.30{\pm}11.80$ pg/mL at the concentration fo 25, 50, 100, and 200 ${\mu}g/mL$ in RAW 264.7 cells(p<0.05). SB significantly inhibited the LPS-induced production of IL-17($18.30{\pm}0.95$ pg/mL) by $13.30{\pm}1.25,\;13.80{\pm}1.11,\;13.30{\pm}0.75,\;and\;14.00{\pm}1.08$ pg/mL at the concentration of 25, 50 100, and 200 ${\mu}g/mL$ in RAW 264.7 cells(p<0.05). SB significantly inhibited the LPS-induced production of IL-23($43.90{\pm}0.83$ pg/mL by $39.50{\pm}1.26,\;38.00{\pm}1.78,\;and\;39.60{\pm}2.49$ pg/mL at the concentration of 25, 100, and 200 ${\mu}g/mL$ in RAW 264.7 cells(p<0.05). Conclusions : These results suggest that SB has anti-inflammatory activity related with its inhibition of IL-3, IL-5, IL-13, IL-17, and IL-23 production in macrophages.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.14 no.2
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• pp.47-58
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• 1981

Relationships between the electrical conductivity and the contents of the chloride, sulfate, calcium, magnesium, sodium, potassium and total major inorganic ions, and between each, chemical conservative constituents were calculated with the data which sampled at the lesions of Mulgeum and between Namji and Wondong from March 1974 to April 1980. Semilogarithmic relations were found between the electrical conductivity and the contents of monovalent ions, and logarithmic relations were found between the electrical conductivity and the contents of divalent ions at the both regions. The relational equations between the electrical conductivity $\lambda_{25}$and the contents of the major inorganic ions at Mulgeum are as follows: $log\;Cl(ppm)\;=\;2.37{\cdot}\lambda_{25}(m{\mho}/cm)+0.733{\pm}0.141$, $log\;SO_4(ppm)=1.12{\cdot}log\lambda_{25}(m{\mho}/cm)+2.14{\pm}0.18$, $log\;Ca(ppm)=0.615{\cdot}log\lambda_{25}(m{\mho}/cm)+1.67{\pm}0.12$, $log\;Mg(ppm)=0.756{\cdot}log\lambda_{25}(m{\mho}/cm)+1.27{\pm}0.11$, $log\;Na(ppm)=2.82{\cdot}\lambda_{25}(m{\mho}/cm)+0.551{\pm}0.133$, $log\;K(ppm)=1.33{\cdot}\lambda_{25}(m{\mho}/cm)+0.136{\pm}0.095$, and total inorganic ions $C(ppm)=399{\cdot}\lambda_{25}(m{\mho}/cm)-0.9{\pm}14.6$. The relational equations between the electrical conductivity ($\lambda_{25}$) and the contents of the major inorganic ions at the region between Namji and Wondong a.e as follows: $log\;Cl(ppm)=4.27{\cdot}\lambda_{25}(m{\mho}/cm)+0.380{\pm}0.138$, $log\;SO_4(ppm)=0.915{\cdot}log\lambda_{25}(m{\mho}/cm)+1.95{\pm}0.18$, $log\;Ca(ppm)=0.756{\cdot}log\lambda_{25}(m{\mho}/cm)+1.74{\pm}0.12$, $log\;Mg(ppm)=1.00{\cdot}log\lambda_{25}(m{\mho}/cm)+1.41{\pm}0.10$. $log\;Na(ppm)=2.47{\cdot}\lambda_{25}(m{\mho}/cm)+0.614{\pm}0.065$, $log\;K(ppm)=1.62{\cdot}\lambda_{25}(m{\mho}/cm)+0.030{\pm}0.060$, and total inorganic ions $C(ppm)=323{\cdot}\lambda_{25}(m{\mho}/cm)+11.7{\pm}9.3$. Logarithmic relations were found between each chemical conservative constituents at Mulgeum and the equations are as follows: $log\;Cl(ppm)=0.711{\cdot}log\;SO_4(ppm)+0.488{\pm}0.206$, $log\;Cl(ppm)=0.337{\cdot}log\;Ca(ppm)+0.822{\pm}0.130$, $log\;Cl(ppm)=0.605{\cdot}log\;Mg(ppm)-0.017{\pm}0.154$, $Cl(ppm)=0.676{\cdot}Na(ppm)+2.31{\pm}4.67$, $log\;Cl(ppm)=0.406{\cdot}log\;K(ppm)-0.092{\pm}0.112$, $log\;SO_4(ppm)=0.378{\cdot}log\;Ca(ppm)+0.721{\pm}0.125$, $log\;SO_4(ppm)=0.462{\cdot}log\;Mg(ppm)+0.107{\pm}0.118$, $log\;SO_4(ppm)=0.592{\cdot}log\;Na(ppm)+0.313{\pm}0.191$, $log\;SO_4(ppm)=0.308{\cdot}log\;K(ppm)-0.019{\pm}0.120$, $Ca(ppm)=0.262{\cdot}Mg(ppm)+0.74{\pm}1.71$. $log\;Ca(ppm)=1.10{\cdot}log\;Na(ppm)-0.243{\pm}0.239$, $Ca(ppm)=0.0737{\cdot}K(ppm)+1.26{\pm}0.73$, $log\;Mg(ppm)=0.0950{\cdot}Na(ppm)+0.587{\pm}0.159$, $log\;Mg(ppm)=0.0518{\cdot}K(ppm)+0.111{\pm}0.102$, and $Na(ppm)=0.0771{\cdot}K(ppm)+1.49{\pm}0.59$. Logarithmic relations were found between each chemical conservative constituents except a relationship between the chloride and calcium contents at the region between Namji and Wondong, and the equations are as follows : $log\;Cl(ppm)=0.312{\cdot}log\;SO_4(ppm)+0.907{\pm}0.210$, $log\;Cl(ppm)=0.458{\cdot}log\;Mg(ppm)+0.135{\pm}0.130$, $Cl(ppm)=0.484{\cdot}logNa(ppm)+0.507{\pm}0.081$, $Cl(ppm)=0.0476{\cdot}K(ppm)+1.41{\pm}0.34$, $log\;SO_4(ppm)=0.886{\cdot}log\;Ca(ppm)+0.046{\pm}0.050$, $log\;SO_4(ppm)=0.422{\cdot}log\;Mg(ppm)+0.139{\pm}0.161$, $log\;SO_4(ppm)=0.374{\cdot}log\;Na(ppm)+0.603{\pm}0.140$, $log\;SO_4(ppm)=0.245{\cdot}log\;K(ppm)+0.023{\pm}0.102$, $log\;Ca(ppm)=0.587{\cdot}log\;Mg(ppm)+0.003{\pm}0.088$, $log\;Ca(ppm)=0.892{\cdot}log\;Na(ppm)+0.028{\pm}0.109$, $log\;Ca(ppm)=0.294{\cdot}log\;K(ppm)-0.001{\pm}0.085$, $log\;Mg(ppm)=0.600{\cdot}log\;Na(ppm)+0.674{\pm}0.120$, $log\;Mg(ppm)=0.440{\cdot}log\;K(ppm)+0.038{\pm}0.081$, and $log\;Na(ppm)=0.522{\cdot}log\;K(ppm)-0.260{\pm}0.072$.

• Korean Journal of Animal Reproduction
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• v.26 no.3
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• pp.229-234
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• 2002

This study was carried out to investigate the general characteristics such as concentration sperm motility and abnormality of sperm on the whole epididymal semen(EWS), RSP-S(removed seminal plasma by saline) and RSP-T(removed seminal plasma by tris-buffer) semen and survival rates after freezing on motility of whole and RSP-S and RSP-T semen and extender containing 2~8% glycerol, and ability of frozen-thawed sperm to penetrate homologous oocytes. 1. The concentration, motility and abnormality of epididymal WES, RSP-S and RSP-T sperm were 4.25 $\pm$ 0.25($\times$10$^{6}$ Cells/$m\ell$), 3.85$\pm$0.20($\times$10$^{6}$ Cells/$m\ell$), 4.05 $\pm$ 0.28($\times$10$^{6}$ Cells/$m\ell$), 50.55 $\pm$ 2.75%, 67.25 $\pm$ 2.55%, 78.75 $\pm$ 3.55 and 9.45 $\pm$ 2.25%, 37.75 $\pm$ 2.10%, 24.25 $\pm$ 1.55%, respectively. 2. The survival rates of slow and rapid frozen epididymal RSP-S and RSP-T sperm were 35.00 $\pm$ 2.35%, 45.50 $\pm$ 2.15％ and 16.50 $\pm$ 3.55%, 22.55 $\pm$ 3.95%, respectively. The survival rate of epididymal WES and RSP-T sperm after freezing following dilution with tris-buffer containing 2~8% glycerol were 9.25 $\pm$ 1.55%~17.50 $\pm$ 2.50%. 3. The percentage of capacitated and acrosome-reacted sperm prier to culture for fresh and frozen -thawed epididymal RSP-T semen were 45.25 $\pm$ 5.75%, 7.06 $\pm$ 0.25%, 48.20 $\pm$ 6.80% and 13.00 $\pm$ 2.35%, 3.55 $\pm$ 0.85%, 15.50 $\pm$ 1.90%, respectively. The penetration rate the number of sperm per penetrated for fresh and frozen-thawed epididymal RSP-T sperm were 39.25 $\pm$ 4.72%, 34.24 $\pm$ 3.93% and 1.30 $\pm$ 0.33, 1.10 $\pm$ 0.50., respectively.

• Korean Journal of Animal Reproduction
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• v.26 no.1
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• pp.41-51
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• 2002

The present study was carried out to examine the effect of cysteamine in vitro maturation (IVM) of porcine oocytes and development of porcine IVM/IVF Embryos. The results were summarized as follows : 1. The rates of nuclear maturation, penetrated oocytes, pronuclear formation, polyspermic oocytes and mean numbers of the penetrated sperm were not different in NCSU23 maturation medium with 0, 25, 50 and 100 $\mu$M cysteamine (P〉0.05). 2. The rates of blastocyst formation at day 7 after in vitro fertilization in 0, 25, 50 and 100 $\mu$M cysteamine were 17.9$\pm$6.1, 17.4$\pm$6.3, 24.2$\pm$1.9 and 16.9$\pm$2.0%, respectively. And the total cells were 30.7$\pm$2.4, 34.9$\pm$2.8, 39.6$\pm$2.3 and 36.8$\pm$3.6, respectively. Fifty $\mu$M cystealnine group was significantly higher than those of any other treatment groups (P＜0.05). 3. The ratios of ICM/total cells in 20~40% category were 20.5, 41.6, 19.5 and 31.5%, respectively. Twenty five $\mu$M cysteamine group was higher than those of other groups. 4. The rates of blastocyst formation at day 7 in the NCSU-23 culture medium of porcine IVF-produced embryos with 0, 25, 50, and 100 $\mu$M cysteamine were 16.0$\pm$0.2, 13.6$\pm$1.7, 25.0$\pm$0.8 and 15.7$\pm$4.5%, respectively. And the total cells were 27.0$\pm$3.7, 36.1$\pm$4.8, 34.0$\pm$3.8 and 25.2$\pm$4.4, respectively. Fifty $\mu$M cysteamine group was significantly higher than those of any other treatment groups (P＜0.05). 5. The ratios of ICM/total cells in 20~40% category were 53.8, 30.0, 16.6 and 11.1%, respectively. The addition groups of cysteamine were lower than those of control group. In conclusion, these results suggested that the addition of 50 $\mu$M cysteamine in the IVM medium and 25~50 $\mu$M cysteamine in IVC medium were effective on the blastocyst formation and total cells of blastocysts.

• Journal of Korean Ophthalmic Optics Society
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• v.20 no.2
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• pp.157-165
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• 2015

Purpose: To evaluate changes in central and peripheral refraction along the horizontal visual fields in myopic corneal refractive surgery group compared with emmetropes. Methods: One hundred twenty eyes of 60 subjects ($23.56{\pm}2.54$ years, range: 20 to 29) who underwent myopic refractive surgery and 40 eyes of 20 emmetropes ($22.50{\pm}1.74$ years, range: 20 to 25) were enrolled. The central and peripheral refractions were measured along the horizontal meridianat $5^{\circ}$, $10^{\circ}$, $15^{\circ}$, $20^{\circ}$, $25^{\circ}$ in the nasal and temporal areas using an open-field autorefractor. For analysis of post-op group, the group was classified by pre-op spherical equivalents of < -6.00 D and ${\geq}-6.00D$ as two post-op groups. Results: Pre-op spherical equivalent was $-4.56{\pm}0.92D$ (rang: -2.50 to -5.58 D) in post-op group 1, and $-7.09{\pm}0.96D$ (rang: -6.00 to -9.00 D) in post-op group 2. Spherical equivalent (M) in the emmetropes ranged from $-0.20{\pm}0.22D$ at center to $-0.64{\pm}0.83D$ at $25^{\circ}$ in the temporal visual field and to $-0.20{\pm}0.67D$ at $25^{\circ}$ in the nasal visual field; M in post-op group 1 ranged from $-0.16{\pm}0.29D$ at center to $-5.29{\pm}1.82D$ at $25^{\circ}$ in the temporal visual field and to $-4.48{\pm}1.88D$ at $25^{\circ}$ in the nasal visual field; M in post-op group 2 ranged from $-0.20{\pm}0.32D$ at center to $-7.98{\pm}2.08D$ at $25^{\circ}$ in the temporal visual field and to $-7.90{\pm}2.26D$ at $25^{\circ}$ in the nasal visual field. Among the three groups, there was no significant difference in M at central visual field (p=0.600) and at $5^{\circ}$ in the temporal visual field (p=0.647), whereas, there was significant difference in M at paracentral and peripheral visual field (p=0.000). Conclusions: Emmetropes had relatively constant refractive errors throughout the central and peripheral visual field and showed myopic peripheral defocus along the horizontal visual field. On the other hand, in myopic corneal refractive surgery group, there were significant differences in refractive errors between the central and peripheral visual field compared with differences in the central and peripheral refraction patterns of emmetropes.

• Korean Journal of Veterinary Research
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• v.35 no.3
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• pp.543-552
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• 1995

This study was undertaken to investigate the eftects of Cd administered ad libitum for 6 weeks on the cellular immune responses of Balb/c mice. The results were summarized as follows; 1. The mice fed 25, 50 and 100ppm Cd drank as much as control, but the mice fed 200ppm Cd drank significantly less water after Cd exposure than did control. Increasing rates of body weight of Cd-fed mice for 6 weeks were as this, control group 27.0%, Cd administered groups(25, 50, 100 and 200ppm) 28.54%, 28.31%, 20.49% and 18.04%, respectively. 2. Absolute spleen to body weight(mg/g) of control, 25, 50, 100 and 200ppm Cd administered groups were $4.34{\pm}0.23$, $4.20{\pm}0.54$, $4.80{\pm}0.87$, $4.25{\pm}0.32$ and $4.40{\pm}0.32$, respectively. Splenic cellularity(${\times}10^7$) of control was $24.29{\pm}5.98$ but increased to $27.72{\pm}5.48$, $32.96{\pm}8.44$, $28.32{\pm}8.76$ and $29.64{\pm}4.08$ in 25, 50, 100 and 200ppm Cd-fed groups, respectively. 3. Total $CD_4{^+}$ cells(${\times}10^7$) of control, 25, 50, 100 and 200ppm Cd-fed groups were $9.15{\pm}2.24$, $10.40{\pm}2.04$, $12.04{\pm}3.08$, $10.20{\pm}3.16$ and $10.80{\pm}1.48$, respectively and total $CD_8{^+}$ cells(${\times}10^7$) of these groups were $2.32{\pm}0.56$, $2.54{\pm}0.27$, $3.12{\pm}0.80$, $2.25{\pm}0.70$ and $2.24{\pm}0.28$, in order. On the other hand, $CD_4{^+}/CD_8{^+}$ ratios in total cells were increased significantly except for 50ppm Cd-fed group($3.88{\pm}0.01$). And that of control was $3.97{\pm}0.02$, but those of 25, 100 and 200ppm were $4.35{\pm}0.01$, $4.54{\pm}0.03$ and $4.81{\pm}0.03$. 4. Phagocytosis rates of peritoneal macrophages were increased significantly in 25 and 50ppm Cd groups($36.34{\pm}9.45$ and $37.15{\pm}9.22$, respectively), but 100 and 200ppm groups showed similar rates($18.20{\pm}3.04$ and $19.48{\pm}3.22$ respectively) to that of control($21.43{\pm}3.62$). 5. In mitogen-induced splenocyte proliferation, various concentraions of $CdCl_2(10^{-4}-10^{-7}M)$ were added to mitogen-stimulated culture in vitro. Splenocyte proliferation induced by LPS was decreased dose dependently, but proliferation by Con-A was increased slightly in concentrations of $10^{-7}-10^{-6}M$. 6. Significant cytotoxicity of splenocytes with $CdCl_2$ were shown at $10^{-4}M$ treated group, especially at 24 hrs. From these results, it could be concluded that Cd might modulate the immune responses by modifying a distribution of T cell subpopulations.

• Journal of Environmental Health Sciences
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• v.1 no.1
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• pp.9-13
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• 1974

For the purpose of determining the degree of freshness and bacterial contamiation of poultry farm eggs, the author collected 550 specimens from poultry farm, during the period from July 22 through October 3, 1973. Eggs of poultry farm were stored at $4{\pm} 1{\circ}$(Relative humidity 67~86%), $18\pm 1\circ$(70~80%) and $25\pm 1\circ$(73~82%) during 20 days. The results are summarized as follows: 1) Egg weight was decreased $0.97\pm 0.27$ gm at $4\pm 1\circ$, $1.68\pm 0.25$ gm at $18\pm 1\circ$ and $2.76\pm 0.30$ gm at $25\pm 1\circ$ after 20 days. 2) Specific gravity of fresh eggs was found to average 1.0785. 3) Yolk index of fresh eggs was found to average 0.419. 4) The regression equation between Yolk index and days was obtained y=0.417-0.001x (r=-0.481, p<0.05) at $4\pm 1\circ$, y=0.394-0.004 x (r=-0.738, p<0.01) at $18\pm 1\circ$ and y=0.391-0.011 x (r=-0.958, p<0.001) at $25\pm 1\circ$. 5) The regression equation between Yolk index and NaCl concentration (specific gravity) was obtained y=-0.001+0.04 x (r=0.796, p<0.001). 6) pH of albumin was changed from 8.0 to 8.8, 9.2 and 9.3 at $4\pm 1\circ$, $18\pm 1\circ$ and $25\pm 1\circ$ after 20 days. 7) Total Viable Bacteria in air cell was increased slowly according to the stored period at each temperature.

• Journal of Veterinary Clinics
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• v.11 no.1
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• pp.471-478
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• 1994

The hematologic values and serum chemistry were examined healthy male 12 Pere David's Deer and 8 Wapiti at the Farmland Zoological Garden. In wapiti, the blood values collected from horn and jugular vein were compared. The results were as follows: 1. There were not any significant differences in hematologic values and serum chemistry of blood col. looted from horn and jugular vein in wapiti. 2. In Pere David's Deer, Mean$\pm$SD Values of White Blood Cell(WBC) count were 4673.50$\pm$1893.42/${mu}ell$, of Neutrophils 65.42$\pm$12.7%, of Lymphocytes 31.50$\pm$8.68%, of Monocytes 0.25$\pm$0.43%, of Eosinophils 0.17$\pm$0.37%. of Basophils, of Red Blood Cell(RBC) 9.93$\pm$1.38$\times$10/${mu}ell$, of PCV 54.25$\pm$6.25%, of Hb 16.89$\pm$2.43g/㎗, of Tot protein 7.63$\pm$0.6g/㎗, of Cholesterol 87.25$\pm$10.76mg/㎗, of Glucose 109.36$\pm$43.7mg/㎗, of SGOT 85.17$\pm$33IU/$\ell$, of SGPT 102.92$\pm$31.49IU/$\ell$, of BUN 21.00$\pm$5.18mg/㎗, of Creatinine 2.1$\pm$0.43mg/㎗, of ALKP 156$\pm$32.72IU/$\ell$, of Ca 11.28$\pm$1.04mg/㎗, of Na 127.92$\pm$10.04mmo1/$\ell$, of NH3 102.83$\pm$42.25mmo1/$\ell$, of Cl 105.91$\pm$3.45mmo1/$\ell$, respectively. 3. In wapiti, Mean$\pm$SD Values of White Blood Cell(WBC) count were 3450.00$\pm$1040.73/${mu}ell$, of Neutrophils 53.88$\pm$7.42%, of Lymphocytes 36.00$\pm$5.72%, of Monocytes 1.13$\pm$1.05%, of Eosinophils 1.38$\pm$1.93%, of Basophils 7.63$\pm$4.15%, of Red Blood Cell 10.09$\pm$1.3$\times$10/${mu}ell$, of PCV 46.88$\pm$3.33%, of H 15.09$\pm$1.48g/㎗, of Total protein 7.15$\pm$0.73g/㎗, of Cholesterol 78.63$\pm$12.27mg/㎗, of Glucose 75.63$\pm$33.22mg/㎗ , of SGOT 79.25$\pm$18.43IU/$\ell$, of SGPT 36.50$\pm$19.20IU/$\ell$, of BUN 29.63$\pm$4.15mg/㎗, of Creatinine 1.35$\pm$0.21mg/㎗ , of ALKP 283.50$\pm$88.13IU/$\ell$, of Ca 9.78$\pm$0.43mg/㎗ , of Na 120.00$\pm$10.02mmol/$\ell$, of NH3 261.50$\pm$ 103.46mmol/$\ell$, of Cl 92.00$\pm$9.19mmol/$\ell$, respectively.

• Journal of Sericultural and Entomological Science
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• v.52 no.2
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• pp.96-101
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• 2014

The present study was conducted for two years to develop the indoor breeding system of mole cricket, Gryllotalpa orientalis Burmeister. In 2013, the total mean number of progenies was $430.{\pm}20.0$ ($mean{\pm}SE$); $15.3{\pm}25.8$ of 2nd-3rd instars, $28.8{\pm}24.0$ 3rd-5th and $2.4{\pm}2.7$ 6th-8th. In 2014, the rearing yielded similar result to that of 2013; $43.5{\pm}31.0$ in total with $25.8{\pm}25.6$ of 2nd-3rd instars, $23.6{\pm}21.3$ 3rd-5th and $2.9{\pm}2.3$ 6th-8th. The successful breeding rate using indoor cages was 46.9% in 2013 and 50.0% in 2014. In total 147 individuals were successfully reared in an outdoor rearing cage with 25 females released and 78 individuals in an indoor rearing cage with 100 females and 50 males released. 86.4% and 89.7% of the nymphs reared were collected within 25cm depth of the soil in the outdoor and indoor cage, respectively.

• Childhood Kidney Diseases
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• v.3 no.2
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• pp.170-179
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• 1999

Purpose: To evaluate whether or not sodium restriction had its own beneficial effect and increased the efficiency of the anti-hypertensive drugs on the progression of renal failure. Methods: We studied using the excision remnant kidney model. Treatment groups were as follows: 5/6 nephrectomy and a 0.49% (normal-high) sodium diet (NN); 5/6 nephrectomy and a 0.25% (normal-low) sodium diet (LN); 5/6 nephrectomy, a 0.49% sodium diet and enalapril (NNE); 5/6 nephrectomy, a 0.49% sodium diet and nicardipine (NNN); 5/6 nephrectomy, a 0.25% sodium diet and enalapril (LNE); 5/6 nephrectomy, a 0.25% sodium diet and nicardipine (LNN). Both diets were isocaloric and had the same content of protein, phosphorus and calcium. Proteinuria, remnant kidney weight, mesangial expansion scores, and glomerular volume were assessed. Results: Blood pressure tended to be lower in LN compared to NN (P<0.05). NN developed progressive hypertension. LNE, LU, NNE, and NNN reduced blood pressure. LNE, LNN, NNE, NNN, and LN had significantly less proteinuria than NN at 16 weeks (P<0.05). At 24 weeks, LN developed proteinuria (82 mg/day), which were lessened in LNE (54 mg/day) and not lessened in LNN (76 mg/day). Mesangial expansion scores were significantly less in LN rats compared to those in NN rats. Glomerular volumes at 24 weeks in LN rats were significantly less compared to those at 16 weeks in NN rats. Mesangial expansion scores and glomerular volumes at 4, weeks, 12 weeks, and 24 weeks were not different among LN, LNE, and LNN groups. Conclusion: Dietary salt restriction lessens renal damage, at least in part, by inhibiting compensatory renal growth and reducing blood pressure. Enalapril was particularly successful in reducing proteinuria and glomerular injury when combined with dietary salt restriction.