1.Anti-obesity effects of Rapha diet(R) preparation in mice fed a high-fat diet.
Jihyun KIM ; Jangbeen KYUNG ; Dajeong KIM ; Ehn Kyoung CHOI ; Paul BANG ; Dongsun PARK ; Yun Bae KIM
Laboratory Animal Research 2012;28(4):265-271
The anti-obesity activities of Rapha diet(R) preparation containing silkworm pupa peptide, Garcinia cambogia, white bean extract, mango extract, raspberry extract, cocoa extract, and green tea extract were investigated in mice with dietary obesity. Male C57BL/6 mice were fed a high-fat diet (HFD) containing 3% Rapha diet(R) preparation for 8 weeks, and blood and tissue parameters of obesity were analyzed. The HFD markedly enhanced body weight gain by increasing the weights of epididymal, perirenal, and mesenteric adipose tissues. The increased body weight gain induced by HFD was significantly reduced by feeding Rapha diet(R) preparation, in which decreases in the weight of abdominal adipose tissue and the size of abdominal adipocytes were confirmed by microscopic examination. Long-term feeding of HFD increased blood triglycerides and cholesterol levels, leading to hepatic lipid accumulation. However, Rapha diet(R) preparation not only reversed the blood lipid levels, but also attenuated hepatic steatosis. The results indicate that Rapha diet(R) preparation could improve HFD-induced obesity by reducing both lipid accumulation and the size of adipocytes.
Abdominal Fat
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Adipocytes
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Animals
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Body Weight
;
Bombyx
;
Cacao
;
Cholesterol
;
Diet, High-Fat
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European Continental Ancestry Group
;
Garcinia cambogia
;
Humans
;
Male
;
Mangifera
;
Mice
;
Obesity
;
Pupa
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Tea
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Triglycerides
;
Weights and Measures
2.Anti-hypercholesterolemic and anti-atherosclerotic effects of polarized-light therapy in rabbits fed a high-cholesterol diet.
Dongsun PARK ; Jangbeen KYUNG ; Dajeong KIM ; Seock Yeon HWANG ; Ehn Kyoung CHOI ; Yun Bae KIM
Laboratory Animal Research 2012;28(1):39-46
The effects of polarized-light therapy (PLT) on high-cholesterol diet (HCD)-induced hypercholesterolemia and atherosclerosis were investigated in comparison with that of lovastatin in rabbits. Hypercholesterolemia was induced by feeding male New Zealand white rabbits with 1% cholesterol in diet for 2 weeks and maintained with 0.5% cholesterol for 6 weeks, followed by normal diet for 2 weeks for recovery. Lovastatin (0.002% in diet) or daily 5-min or 20-min PLT on the outside surface of ears was started 2 weeks after induction of hypercholesterolemia. Hypercholesterolemic rabbits exhibited great increases in serum cholesterol and low-density lipoproteins (LDL) levels, and finally severe atheromatous plaques formation covering 57.5% of the arterial walls. Lovastatin markedly reduced both the cholesterol and LDL, but the reducing effect (47.5%) on atheroma formation was relatively low. By comparison, 5-min PLT preferentially decreased LDL, rather than cholesterol, and thereby potentially reduced the atheroma area to 42.2%. Notably, 20-min PLT was superior to lovastatin in reducing both the cholesterol and LDL levels as well as the atheromatous plaque formation (26.4%). In contrast to the increases in blood alanine transaminase and aspartate transaminase following lovastatin treatment, PLT did not cause hepatotoxicity. In addition, PLT decreased platelets and hematocrit level. The results indicate that PLT attenuates atherosclerosis not only by lowering blood cholesterol and LDL levels, but also by improving blood flow without adverse effects. Therefore, it is suggested that PLT could be a safe alternative therapy for the improvement of hypercholesterolemia and atherosclerosis.
Alanine Transaminase
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Aspartate Aminotransferases
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Atherosclerosis
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Blood Platelets
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Cholesterol
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Diet
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Ear
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Hematocrit
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Humans
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Hypercholesterolemia
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Lipoproteins, LDL
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Lovastatin
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Male
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Plaque, Atherosclerotic
;
Rabbits
3.Efficacy of minimal invasive cardiac output and ScVO₂ monitoring during controlled hypotension for double-jaw surgery
Seokkon KIM ; Jaegyok SONG ; Sungmi JI ; Min A KWON ; Dajeong NAM
Journal of Dental Anesthesia and Pain Medicine 2019;19(6):353-360
BACKGROUND: Controlled hypotension (CH) provides a better surgical environment and reduces operative time. However, there are some risks related to organ hypoperfusion. The EV1000/FloTrac system can provide continuous cardiac output monitoring without the insertion of pulmonary arterial catheter. The present study investigated the efficacy of this device in double jaw surgery under CH.METHODS: We retrospectively reviewed the medical records of patients who underwent double jaw surgery between 2010 and 2015. Patients were administered conventional general anesthesia with desflurane; CH was performed with remifentanil infusion and monitored with an invasive radial arterial pressure monitor or the EV1000/FloTrac system. We allocated the patients into two groups, namely an A-line group and an EV1000 group, according to the monitoring methods used, and the study variables were compared.RESULTS: Eighty-five patients were reviewed. The A-line group reported a higher number of failed CH (P = 0.005). A significant correlation was found between preoperative hemoglobin and intraoperative packed red blood cell transfusion (r = 0.525; P < 0.001). In the EV1000 group, the mean arterial pressure (MAP) was significantly lower 2 h after CH (P = 0.014), and the cardiac index significantly decreased 1 h after CH (P = 0.001) and 2 h after CH (P = 0.007). Moreover, venous oxygen saturation (ScVO2) decreased significantly at both 1 h (P = 0.002) and 2 h after CH (P = 0.029); however, these values were within normal limits.CONCLUSION: The EV1000 group reported a lower failure rate of CH than the A-line group. However, EV1000/FloTrac monitoring did not present with any specific advantage over the conventional arterial line monitoring when CH was performed with the same protocol and same mean blood pressure. Preoperative anemia treatment will be helpful to decrease intraoperative transfusion. Furthermore, ScVO2 monitoring did not present with sufficient benefits over the risk and cost.
Anemia
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Anesthesia, General
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Arterial Pressure
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Blood Pressure
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Cardiac Output
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Catheters
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Erythrocyte Transfusion
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Humans
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Hypotension, Controlled
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Medical Records
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Operative Time
;
Orthognathic Surgery
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Osteotomy, Le Fort
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Oxygen
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Retrospective Studies
;
Vascular Access Devices
5.Withdrawal: Specific nephrotoxicity and cardiotoxicity of BT-CAL®, Sigma Anti-bonding Molecule Calcium Carbonate, in mice.
Ja Young JANG ; Jingmei CAI ; Jihyun KIM ; Jangbeen KYUNG ; Dajeong KIM ; Ehn Kyoung CHOI ; Youngeun KIM ; Kwang Sei KIM ; Dongsun PARK ; Hyun Gu KANG ; Yun Bae KIM
Laboratory Animal Research 2016;32(2):134-134
This article has been retracted.
6.Specific nephrotoxicity and cardiotoxicity of BT-CAL(R), Sigma Anti-bonding Molecule Calcium Carbonate, in mice.
Ja Young JANG ; Jingmei CAI ; Jihyun KIM ; Jangbeen KYUNG ; Dajeong KIM ; Ehn Kyoung CHOI ; Youngeun KIM ; Kwang Sei KIM ; Dongsun PARK ; Hyun Gu KANG ; Yun Bae KIM
Laboratory Animal Research 2013;29(1):7-11
According to a high anti-osteoporotic efficacy of Sigma Anti-bonding Molecule Calcium Carbonate (SAC), repeated-dose toxicities of SAC were investigated to assess its feasibility as drug or functional food ingredient. Male ICR mice were given drinking water containing 0.006, 0.02 or 0.06% SAC for 4 weeks. SAC feeding decreased the body weights and feed and water consumptions of mice in a dose-dependent manner, especially, leading to severe emaciation and 70% death in 3 weeks in the high-dose (0.06%) group. Not only kidney and heart weights, but also the levels of blood urea nitrogen, creatinine, aspartate transaminase, and creatine phospokinase significantly increased after SAC administration, indicative of nephrotoxicity and cardiotoxicity. Such renal and cardiac toxicities were also confirmed by microscopic findings, exhibiting renal crystals and cardiac fibrosis, which may be due to the insoluble crystal formation and calcium overload, respectively. In conclusion, it is suggested that no observed adverse effect level of SAC is lower than 0.006% in mice, and that a long-term intake may cause serious adverse effects on renal and cardiac functions.
Animals
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Aspartate Aminotransferases
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Blood Urea Nitrogen
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Body Weight
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Calcium
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Calcium Carbonate
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Creatine
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Creatinine
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Drinking Water
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Emaciation
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Fibrosis
;
Functional Food
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Heart
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Humans
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Kidney
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Male
;
Mice
;
Mice, Inbred ICR
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No-Observed-Adverse-Effect Level
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Weights and Measures
7.Anti-inflammatory effects of Houttuynia cordata supercritical extract in carrageenan-air pouch inflammation model.
Dajeong KIM ; Dongsun PARK ; Jangbeen KYUNG ; Yun Hui YANG ; Ehn Kyoung CHOI ; Yoon Bok LEE ; Hyun Kyu KIM ; Bang Yeon HWANG ; Yun Bae KIM
Laboratory Animal Research 2012;28(2):137-140
Anti-inflammatory effects of Houttuynia cordata supercritical extract (HSE) were investigated in rat carrageenan-air pouch model. Oral administration of HSE (50-200 mg/kg) suppressed carrageenan-induced exudation and albumin leakage, as well as inflammatory cell infiltration at a high dose (200 mg/kg). Intraperitoneal injection of dexamethasone (2 mg/kg) only decreased exudation and cell infiltration, while indomethacin (2 mg/kg, i.p.) reduced exudate volume and albumin content without influence on the cell number. HSE lowered tumor-necrosis factor-alpha (TNF-alpha) and nitric oxide (NO), as well as prostaglandin E2 (PGE2). Dexamethasone only reduced TNF-alpha and NO, while indomethacin decreased PGE2. The results indicate that HSE exhibits anti-inflammatory effects by inhibiting both TNF-alpha-NO and cyclooxygenase-2-PGE2 pathways.
Administration, Oral
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Animals
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Carrageenan
;
Cell Count
;
Dexamethasone
;
Dinoprostone
;
Exudates and Transudates
;
Houttuynia
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Indomethacin
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Inflammation
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Injections, Intraperitoneal
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Nitric Oxide
;
Rats
;
Tumor Necrosis Factor-alpha
8.Synergistic anti-inflammatory effects of Laminaria japonica fucoidan and Cistanche tubulosa extract.
Jangbeen KYUNG ; Dajeong KIM ; Dongsun PARK ; Yun Hui YANG ; Ehn Kyoung CHOI ; Sung Pyo LEE ; Tae Su KIM ; Yoon Bok LEE ; Yun Bae KIM
Laboratory Animal Research 2012;28(2):91-97
The anti-inflammatory effects of fuciodan and Cistanche tubulosa (CT) extract were investigated in vitro macrophage culture system and in vivo carrageenan-induced air pouch inflammation model. CT extract inhibited nitric oxide production from activated RAW 264.7 macrophage cells, while fucoidan was inactive. In vivo air pouch inflammation model, carrageenan-induced vascular exudation and increased nitric oxide and prostaglandin E2 concentrations in the exudates were synergistically suppressed by co-administration of fucoidan or CT extract. Moreover, tissue inflammation was substantially attenuated by the combinational therapy. However, there was no synergistic effect against the inflammatory cell infiltration, although fucoidan and CT extract each markedly reduced the cell numbers. Therefore, it is suggested that fucoidan blocks infiltration of inflammatory cells, while CT extract inhibits activation of the cells, and that their combinational treatment could be a promising candidate for the relief of various types of inflammation.
Carrageenan
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Cell Count
;
Cistanche
;
Dinoprostone
;
Exudates and Transudates
;
Inflammation
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Laminaria
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Macrophages
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Nitric Oxide
;
Polysaccharides
9.Effectiveness of the combinational treatment of Laminaria japonica and Cistanche tubulosa extracts in hair growth.
Kyungha SHIN ; Tae Su KIM ; Jangbeen KYUNG ; Dajeong KIM ; Dongsun PARK ; Ehn Kyoung CHOI ; Sung Pyo LEE ; Woong Suk YANG ; Myung Hwa KANG ; Yun Bae KIM
Laboratory Animal Research 2015;31(1):24-32
Since scalp hair loss has increased recently even in young people, seriously affecting individual's quality of life, the hair growth-stimulating effects of Laminaria japonica extract (LJE) and Cistanche tubulosa extract (CTE) were investigated. After confirming anagen phase of follicles under shaving, male C57BL/6 mice were dermally applied with 3% Minoxidil or orally administered with the combinations of LJE and CTE for 21 days. Minoxidil promoted the hair regrowth and increased gamma-glutamyl transpeptidase (gamma-GTP) and alkaline phosphatase (ALP) activities. In addition, Minoxidil up-regulated epidermal growth factor (EGF) and vascular endothelial growth factor (VEGF) levels. Co-administration of LJE and CTE at 54 mg/kg LJE plus 162 mg/kg CTE exerted synergistic promoting effects on the hair regrowth, comparable to 3% Minoxidil. LJE preferentially enhanced ALP activity, while CTE increased both gamma-GTP and ALP activities as well as EGF and VEGF expressions. In vivo air pouch inflammation model, carrageenan-induced vascular exudation and increased nitric oxide and prostaglandin E2 concentrations in the exudates were synergistically suppressed by co-administration of LJE and CTE. In addition, inflammatory cell infiltration was substantially inhibited by the combinational treatment. The results suggest that combinational oral treatment with LJE and CTE in appropriate doses and ratios prevent hair loss and improve alopecia, which might be in part mediated by their anti-inflammatory activities.
Alkaline Phosphatase
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Alopecia
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Animals
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Cistanche*
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Dinoprostone
;
Epidermal Growth Factor
;
Exudates and Transudates
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gamma-Glutamyltransferase
;
Hair*
;
Humans
;
Inflammation
;
Laminaria*
;
Male
;
Mice
;
Minoxidil
;
Nitric Oxide
;
Quality of Life
;
Scalp
;
Vascular Endothelial Growth Factor A
10.Erratum: Synergistic anti-inflammatory effects of Laminaria japonica fucoidan and Cistanche tubulosa extract.
Jangbeen KYUNG ; Dajeong KIM ; Dongsun PARK ; Yun Hui YANG ; Ehn Kyoung CHOI ; Sung Pyo LEE ; Tae Su KIM ; Yoon Bok LEE ; Yun Bae KIM
Laboratory Animal Research 2015;31(3):153-153
As the request of the authors, one paragraph has been changed.