An electron microscopical observation was carried out to compare the general shape of the mast cells and structures of granules inside the cells in the stomach of 5 species in 3 orders of Mammals. In convenience, the granules in the cytoplasm were abbreviated as follows: 1) Homogeneous granule, GR1 2) Particulate granule, GR2 a. Dark dense particulate granule, GR2-1 b. Less dense particulate granule, GR2-2 3) Reticular granule, GR5 a. Dark dense reticular granule, GR5-1 b. Light dense reticular granule, GR5-2 In Mammalia including goat, dog, cat, and hamster, most of cytoplasmic organelle were Golgi apparatus and mitochondria, and most of the cytoplasmic granules were highly densed GR1and GR2. However GR5-1 and GR5-2 appeared in guinea pig while one side sunken or crescent-like types occured in both dog and guinea pig. All mast cells were oval or spindle with cytoplasmic processes around the cell. There was also found vacuoles and vesicles in these cells. These results demonstrated that there was a morphological difference between species of vertebrate in the mast cells and their cytoplasmic granules. It was also suggested that a variety of structures of granules were closely related with the composition (histamine, heparin, serotonin, hyaluronic acid etc.) and mature of the granules.
To improve the efficiency of in vitro production of embryos with follicular oocytes in Korean Native cows, the recovery rates, in vitro maturation, fertilization and development, and the time required for collecting and processing oocytes by aspiration with or without slicing were evaluated comparatively. The ovaries were obtained from a local abattoir and placed in physiological saline at 25~28$^{\circ}C$ and brought to the laboratory within 3 hrs. The oocytes were collected by aspiration of follicles(2~6mm) with or without slicing ovaries after aspiration, and classified into Grade I, Grade II, Denuded, Expanded oocytes by the morphology of cumulus cells attached and the homogeneity of cytoplasmic granules. Also the time required for each step of collecting and processing oocytes were measured. The cumulus cells were removed in some Grade I oocytes to measure their size and nuclear configuration before and after in vitro maturation. The Grade I oocytes were matured in vitro(IVM) for 24 hrs. in TGM-199 supplemented with 35$\mu$g /ml FSH, 10$\mu$g /ml LH, 1 $\mu$g /ml at 39$^{\circ}C$ under 5% C02 in air. They were fertilized in vitro(IVF) by epididymal spermatozoa treated with heparin for 24hrs. and then the zygotes were cocultured in vitro (IVC) with bovine oviductal epithelial cells for 10 days. The results obtained were as follows: The number of oocytes recovered per ovary was averaged 6.6 by aspiration and 11.2 by slicing post aspiration, which summed to 17.8. The number of Grade I oocytes recovered per ovary was averaged 3.1 by aspiration and 3.6 by slicing, which summed to 6.7. The percentage of Grade I to total oocytes recovered was significantly(P<0.05) higher as 48.0 % in aspiration than 31.6% in slicing post aspiration. The time requlred for recovering a Grade I oocyte by aspiration and slicing was 1.1 and 2.5 min, respectively. The mean diameter of Grade I oocytes by aspiration and slicing was similar as 148.7 and 151.5$\mu$m, respectively. The percentage of Metaphase II stage oocytes after IVM for 24 hours was significantly (P
Cyclooxygenase-2 (COX-2) selective inhibitors were specifically developed to reduce the risks of gastrointestinal bleeding associated with other NSAID drugs. However, the APPROVe (Adenomatous Polyp Prevention on VIOXX) trials revealed that rofecoxib sometimes exerts prothrombotic effects. Meanwhile, cancer patients, who also carry a risk of thrombosis due to a variety of mechanisms, are often treated with COX-2 selective inhibitors, due to their relative gastrointestinal safety. This report concerns the case of a 46-year old woman with advanced cervical cancer, who had been treated with opioids and a COX-2 selective inhibitor (celecoxib) for 2 months, for the relief of pain associated with her cancer. The patient was admitted due to swelling of the left leg, which was also accompanied by pain. A computerized tomography scan revealed deep vein thrombosis occurring in multiple veins of both legs. After the administration of low-molecular weight heparin and oral warfarin, the patient's symptoms were relieved initially. However, her prothrombin time was found to be prolonged, necessitating the discontinuation of anticoagulation therapy. The patient's dyspnea worsened, ultimately resulting in her death. In conclusion, the administration of cox-2 selective inhibitors should be carefully considered in patients with a number of different risk factors, and assessed on a case-by-case basis.
Kim, Moon-Young;Liang, Guo-Hua;Kim, Ji-Aee;Choi, Soo-Seung;Choi, Shin-Ku;Suh, Suk-Hyo
The Korean Journal of Physiology and Pharmacology
/
v.13
no.1
/
pp.27-32
/
2009
The effects of oxidized low-density lipoprotein(OxLDL) and its major lipid constituent lysophosphatidylcholine(LPC) on $Ca^{2+}$ entry were investigated in cultured human umbilical endothelial cells(HUVECs) using fura-2 fluorescence and patch-clamp methods. OxLDL or LPC increased intracellular $Ca^{2+}$ concentration($[Ca^{2+}]_i$), and the increase of $[Ca^{2+}]_i$ by OxLDL or by LPC was inhibited by $La^{3+}$ or heparin. LPC failed to increase $[Ca^{2+}]_i$ in the presence of an antioxidant tempol. In addition, store-operated $Ca^{2+}$ entry(SOC), which was evoked by intracellular $Ca^{2+}$ store depletion in $Ca^{2+}$-free solution using the sarcoplasmic reticulum $Ca^{2+}$ pump blocker, 2, 5-di-t-butyl-l,4-benzohydroquinone(BHQ), was further enhanced by OxLDL or by LPC. Increased SOC by OxLDL or by LPC was inhibited by U73122. In voltage-clamped cells, OxLDL or LPC increased $[Ca^{2+}]_i$ and simultaneously activated non-selective cation(NSC) currents. LPC-induced NSC currents were inhibited by 2-APB, $La^{3+}$ or U73122, and NSC currents were not activated by LPC in the presence of tempol. Furthermore, in voltage-clamped HUVECs, OxLDL enhanced SOC and evoked outward currents simultaneously. Clamping intracellular $Ca^{2+}$ to 1 ${\mu}M$ activated large-conductance $Ca^{2+}$-activated $K^+(BK_{ca})$ current spontaneously, and this activated $BK_{ca}$ current was further enhanced by OxLDL or by LPC. From these results, we concluded that OxLDL or its main component LPC activates $Ca^{2+}$-permeable $Ca^{2+}$-activated NSC current and $BK_{ca}$ current simultaneously, thereby increasing SOC.
Journal of the Society of Cosmetic Scientists of Korea
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v.23
no.2
/
pp.118-151
/
1997
Allergic contact dermatitis is a common skin disease resulting from specific immumologic sensitization to topically applied various allergen. Purpose of this study was to investigate skin morphologic chganges by light microscopic, changes of protein band by SDS-PAGE in the skin treated on the surfactant. Furthermore, lectin histochemistry is used to know the chagnges of the terminal sugar of the glycoconjugate in the skin treated on the surfactant. The results were as follows : The 1 day of treated group was indicated the enlargement of capillary, the 3 days of treated group was showed that the cytoplasm was eosinophlic by the pyknotic of nucleus. The 6 days of treated group was observed hyperkeratinoid, increased of inflammation cells to epithelium. The 9 days of treated group was appeares that serum crust was sheded and formed a acanthosis. But dermis layer was cytoplasmic vaculation and enlargement of intercellular space. The 12 days treated group made up new epidermis layer of seven layer and of observed an decreased in quantity of inflammation cells. The mast cell of degranulated type was increased in treated surfactnat. It was secreating granules hold histamin, serotonin and heparin. Accordingly, protein band of electrophortic phase was observed a sudden changes since 3 days treated group. At observeation of the cell-surface glycoconjugates, LCA, PNA, SBA and WGA lectin positive cells but inducated lectin negative cells in Con-A. Furthermore, PNA and SBA showed stroger positive reaction as treated surfactant group.
The measurement of angled erythrocyte sedimentation rate (ESR), as a replacement for perpendicular ESR, for cattle blood was scrutinized since it has been well known that perpendicular ESR in cattle is too slow to be adopted as an effective clinical test. Samples of blood were taken from 186 Korean native cattle over 2 years old. The results obtained in the experiment were summarized as follows. 1. Average values of perpendicular ESR/24hrs in 15 apparently healthy cattle, as measured by Wintrobe, Westergren and capillary tubes, were $5.8{\pm}2.2$, $11.1{\pm}3.7$ and $10.4{\pm}4.5%$ respectively, which were found to be similar to the values of perpendicular ESR/hr of normal blood of human. 2. The ESR was determined in the tubes held at 90, 75, 60, 45, 30 and 15-degree angles, using 3 types of tubes. For the diagnostic purposes, the best results were obtained from the tubes held at 45-degree angle. 3. The angled ESR values increased as the diameters of the tube-bores decreased. 4. The tube length did not affect the angled ESR(%). 5. The angled ESR values increased with the increased environmental temperature during the ESR measurement. 6. The storage temperature at $5^{\circ}C$, $20^{\circ}C$ and $35^{\circ}C$, of the blood for 24 hours did not affect the angled ESR. 7. Samples of blood were treated with 4 kinds of anticoagulants (heparin, $K_2$-EDTA, double oxalate and sodium citrate) and the ESR was determined at 45-degree angle, using capillary hematocrit tubes. The ESR values were higher in the blood samples treated with sodium citrate than in those treated with other anticoagulants. 8. By using the autologous plasma, the PCV was adjusted to be 5, 10, 20, 30, 40 and 50ml/100ml and the ESR was determined in the capillary hematocrit and Wintrobe tubes held at 45 degrees. In both of the methods the ESRs increased as the values of PCV decreased. The regressions of ESR to PCV in both 45-degree-angled capillary and Wintrobe tubes were curvilinear. For the capillary hematocrit tubes the second degree polynomial $Y=61.9779-2.3533x+0.0228x^2$ (r=0.9999) fits the data. And in the case of Wintrobe tubes the second degree polynomial $Y=27.9767-1.1314x-0.0117x^2$ (r=0.9998) fits the data. 9. The 45-degree angled ESR was determined in the blood of 71 healthy Korean native cows using capillary hematocrit tubes. The average PCV was $35.4{\pm}3.6ml/100ml$. The observed ESR/hr averaged $7.2{\pm}2.7%$, while the corrected ESR/hr to a PCV of 36ml/100ml averaged $6.6{\pm}1.3%$. From these results it was concluded that to obtain the best results the ESR/hr of Korean native cattle should be determined at 45-degree angle at room temperature($20^{\circ}C$) using capillary hematocrit tubes.
To examine the critical effect of oxygen concentration on embryonic development, in vitro fertilized embryos were cultured in media(TCM199 vs. SOF) supplemented sera(1O% FCS vs. 10% HS) with and without bovine oviduct epithelial cells under two gas atmosphere (5% $CO_2$ in air vs. 5% $CO_2$, 5% $O_2$, 90% $N_2$). Oocytes, obtained from abattoir ovaries, were matured in EGF containing TCM199 medium co-cultured with BOEC for 24 hours, followed by exposure to frozen-thawed, heparin4reated spermatozoa in TALP for 30 hours. And then early embryos(1~2 cell) were cultured in both TCM199 and SOF supplemented with 10% FCS or 10% RS under 5% $CO_2$ in air or 5% COi, 5% $O_2$, 90% $N_2$. Development to morulae and blastocysts was recorded on days 7, after the start of in vitro fertilization. The developmental rates of in vitro fertilized embryos to morulae and blastocysts cultured in SOF with BOEC under 5% $CO_2$, 5% $O_2$, 90% $N_2$(24.4%) were significantly(p<0.05) higher than cultured in SOF with BOEC under 5% $CO_2$ in air(14.1%) at seven days after in vitro fertilization. When early bovine embryos were cultured in TCM 199 and SOF under two different gas atmosphere, there were no significant differences in the developmental rates to morulae and blastocysts between supplements of 10% FCS and 10% HS. The rates of development to morulae and blastocysts were significantly(p<0.01) higher in TCM 199 with BOEC(24.7%) than TCM199 without BOEC(10.9%) under 5% $CO_2$ in air, otherwise SOF without BOEC(36.4%) were significantly (p<0.05) higher than in SOF with BOEC (24.4%) under 5% $CO_2$, 5% $O_2$, 90% $N_2$. In summary, these experiments have proved that the culture system in SOF supplemented 10% ES is effective on in vitro development of early bovine embryos under 5% $CO_2$, 5% $O_2$, 90% $N_2$. In addition, it is effective to development of bovine embryos that TCM 199 should be co-cultured with BOEC and SOF should be cultured without somatic cells under two different gas atmosphere.
Hong Byeong Il;Jung Byung Chun;Son Byung Yil;Jung Woo Jin;Ruck Ji Hee;Choi Byeong Dae;Lee Kang-Ho
Korean Journal of Fisheries and Aquatic Sciences
/
v.35
no.6
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pp.671-675
/
2002
The present study was conducted to elucidate functional properties of sulfated polysaccharides from ascidian tunics, In physical properties of the crude polysaccharides, emulsion ability and foaminess were more excellent compared with chitin and chitosan, particular dye binding capacity was prominent. Anti-blood coagulation of partially purified sulfnted polysaccharides showed with respect to APTT (Activated partial thromboplastin time). Especially, active fraction $(F_4)$ obtained by DEAE-cellulose ion exchange chromatography showed highest activity, which was approximately $20\%$ of the activity of heparin. ACE inhibitory activity also similar to anticoagulant activity. Active fraction $(F_4)$ obtained by DEAE-cellulose ion exchange chromatography showed about $34\%$, in ACE inhibitory activity.
Purpose : One of the major complication of arterial catheterization is the thrombosis of the iliac or femoral arteries. Tissue loss following femoral artery catheterization is rare. However longterm sequelae such as impaired limb growth and future impairment of vascular access, are also important in pediatric cardiac patients. But standard methods to treat thrombotic complication of arterial catheterization in infants and children is not established. The present study was performed to assess the efficacy of intraarterial catheter-directed urokinase infusion in infants and children with limb ischemia due to arterial thrombosis after cardiac catheterization. Methods : From January 1994 to August 2002, 12 patients with thrombotic femoral artery occlusion after arterial catheterization were treated with catheter-directed urokinase infusion in Dong-A University Hospital. Retrospective analysis of the medical records and angiograms was conducted. Results : The incidence of femoral artery thrombosis after retrograde arterial catheterization, which had not responded to systemic infusion of heparin and/or urokinase, was 2.8 percent. The doses of urokinase were 1,000-4,400 unit/kg/hr and duration of infusion was $50.6{\pm}29.2$ hours(18-110 hours). Clot resolution was complete in all patients who started to receive the intraarterial urokinase infusion within four days after catheterization. Only partial thrombolysis was seen in two patients who were treated with intraarterial urokinase on the 12th and 19th days after thrombus formation. Balloon angioplasty was done for these two patients with partial success. Bleeding complications were seen in two cases. Conclusion : Early use of catheter-directed intraarterial infusion of urokinase is safe and effective in thrombolysis of femoral artery occlusion after cardiac catheterization in infants and children.
Journal of the Korean Society of Food Science and Nutrition
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v.29
no.4
/
pp.712-718
/
2000
The alkali extraction of anticoagulant from a clove revealed 3-to 6-fold more effective than hot-water extraction. The highest anticoagulant activity was found with 0.1 N NaOH at 7$0^{\circ}C$. The anticoagulant fractions from a clove, EC-2B and EC-2C were separated by alkali extraction, ethanol precipitation, cetavlon treatment, and ultrafiltration. The anticoagulant activities of these two fractions were, respectively, 6.57 and 8.63 times higher than those extracted with hot-water. As of the sensory evaluation, boiled pork added with EC-2B fraction revealed similar sensory acceptability to raw clove material, while EC-2C fraction had low sensory acceptability due to a mild chemical odor. Antibacterial characteristics against pathogenic microorganism of both fractions were confirmed in the control strain. The inhibitory effect of growth by EC-2B was noticed above 0.016% in S. aureus. Also, EC-2C showed the inhibitory effect at 0.004% in both E. cole and S. aureus control strains.
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