1.Comparative analysis of anti-Helicobacter pylori activities of FEMY-R7 composed of Laminaria japonica and Oenothera biennis extracts in mice and humans.
Tae Su KIM ; Kyungha SHIN ; Joseph H JEON ; Ehn Kyoung CHOI ; Youngjin CHOI ; Sung Pyo LEE ; Yoon Bok LEE ; Yun Bae KIM
Laboratory Animal Research 2015;31(1):7-12
Helicobacter pylori-eliminating effects of FEMY-R7, composed of Laminaria japonica and Oenothera biennis extracts, were investigated in mice and humans. Male C57BL/6 mice were infected with the bacteria by intragastric inoculation (1x10(9) CFU/mouse) 3 times at 2-day intervals, and simultaneously, orally treated twice a day with total 20, 64 or 200 mg/kg/day FEMY-R7 for 2 weeks. In Campylobcter-like organism (CLO)-detection tests on gastric mucosa and feces, FEMY-R7 reduced the urease-positive reactivity in a dose-dependent manner; i.e., the positivity ratios were decreased to 70, 20, and 10% for gastric mocosa and to 80, 50, and 20% for feces. In a clinical sudy, human subjects, confirmed to be infected with Helicobacter pylori, were orally administered twice a day with capsules containing total 100, 320 or 1,000 mg/man/day FEMY-R7 (matching doses for 20, 64 or 200 mg/kg/day, respectively, in mice from a body surface area-based dose translation) for 8 weeks. FEMY-R7 decreased the positivity ratios in feces to 70, 40, and 30%, respectively. In bacterial culture, H. pylori was identified from the CLO-positive stools of mice and humans. The bacterial identification ratios exhibited a good correlation between the matching doses in mice and humans. It is suggested that FEMY-R7 could be a promising functional food without tolerance as an adjunct to reduce the dosage of antibiotics for the treatment of recurrent H. pylori infection.
Animals
;
Anti-Bacterial Agents
;
Bacteria
;
Capsules
;
Feces
;
Functional Food
;
Gastric Mucosa
;
Helicobacter
;
Helicobacter pylori
;
Humans
;
Laminaria*
;
Male
;
Mice*
;
Oenothera biennis*
2.Anti-Helicobacter pylori activities of FEMY-R7 composed of fucoidan and evening primrose extract in mice and humans.
Tae Su KIM ; Ehn Kyoung CHOI ; Jihyun KIM ; Kyungha SHIN ; Sung Pyo LEE ; Youngjin CHOI ; Joseph H JEON ; Yun Bae KIM
Laboratory Animal Research 2014;30(3):131-135
Helicobacter pylori-eliminating effects of FEMY-R7, composed of fucoidan and evening primrose extract, were investigated in mice and humans. Male C57BL/6 mice were infected with the bacteria by intragastric inoculation (1x10(9) CFU/mouse) 3 times at 2-day intervals, and simultaneously, orally treated twice a day with 10 or 100 mg/kg FEMY-R7 for 2 weeks. In Campylobcter-like organism-detection test, FEMY-R7 markedly reduced the urease-positive reactivity. In a clinical sudy, human subjects, confirmed to be infected with Helicobacter pylori, were orally administered twice a day with a capsule containing 150 mg FEMY-R7 for 8 weeks. FEMY-R7 significantly decreased both the Delta over baseline-value in urea breath test and the serum pepsinogens I and II levels. The results indicate that FEMY-R7 not only eliminates H. pylori from gastric mucosa of animals and humans, but also improves gastric function.
Animals
;
Bacteria
;
Breath Tests
;
Gastric Mucosa
;
Helicobacter
;
Helicobacter pylori
;
Humans
;
Male
;
Mice*
;
Oenothera biennis*
;
Pepsinogen A
;
Pepsinogens
;
Urea
3.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
;
Aspartate Aminotransferases
;
Atherosclerosis
;
Blood Platelets
;
Cholesterol
;
Diet
;
Ear
;
Hematocrit
;
Humans
;
Hypercholesterolemia
;
Lipoproteins, LDL
;
Lovastatin
;
Male
;
Plaque, Atherosclerotic
;
Rabbits
4.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
;
Adipocytes
;
Animals
;
Body Weight
;
Bombyx
;
Cacao
;
Cholesterol
;
Diet, High-Fat
;
European Continental Ancestry Group
;
Garcinia cambogia
;
Humans
;
Male
;
Mangifera
;
Mice
;
Obesity
;
Pupa
;
Tea
;
Triglycerides
;
Weights and Measures
5.Extraction conditions of white rose petals for the inhibition of enzymes related to skin aging.
Ehn Kyoung CHOI ; Haiyu GUO ; Jae Kwon CHOI ; Su Kil JANG ; Kyungha SHIN ; Ye Seul CHA ; Youngjin CHOI ; Da Woom SEO ; Yoon Bok LEE ; Seong So JOO ; Yun Bae KIM
Laboratory Animal Research 2015;31(3):148-152
In order to assess inhibitory potentials of white rose petal extracts (WRPE) on the activities of enzymes related to dermal aging according to the extraction conditions, three extraction methods were adopted. WRPE was prepared by extracting dried white rose (Rosa hybrida) petals with 50% ethanol (WRPE-EtOH), Pectinex(R) SMASH XXL enzyme (WRPE-enzyme) or high temperature-high pressure (WRPE-HTHP). In the inhibition of matrix metalloproteinase-1, although the enzyme activity was fully inhibited by all 3 extracts at 100 microg/mL in 60 min, partial inhibition (50-70%) was achieved only by WRPE-EtOH and WRPE-enzyme at 50 microg/mL. High concentrations (> or =250 microg/mL) of all 3 extracts markedly inhibited the elastase activity. However, at low concentrations (15.6-125 microg/mL), only WRPE-EtOH inhibited the enzyme activity. Notably, WRPE-EtOH was superior to WRPE-enzyme and WRPE-HTHP in the inhibition of tyrosinase. WRPE-EtOH significantly inhibited the enzyme activity from 31.2 microM, reaching 80% inhibition at 125 microM. In addition to its strong antioxidative activity, the ethanol extract of white rose petals was confirmed to be effective in inhibiting skin aging-related enzymes. Therefore, it is suggested that WRPE-EtOH could be a good candidate for the improvement of skin aging such as wrinkle formation and pigmentation.
Aging
;
Ethanol
;
Matrix Metalloproteinase 1
;
Monophenol Monooxygenase
;
Pancreatic Elastase
;
Pigmentation
;
Skin Aging*
;
Skin*
6.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
;
Alopecia
;
Animals
;
Cistanche*
;
Dinoprostone
;
Epidermal Growth Factor
;
Exudates and Transudates
;
gamma-Glutamyltransferase
;
Hair*
;
Humans
;
Inflammation
;
Laminaria*
;
Male
;
Mice
;
Minoxidil
;
Nitric Oxide
;
Quality of Life
;
Scalp
;
Vascular Endothelial Growth Factor A
7.Anti-Helicobacter pylori effects of IgY from egg york of immunized hens.
Yun Hui YANG ; Dongsun PARK ; Goeun YANG ; Sun Hee LEE ; Dae Kwon BAE ; Jangbeen KYUNG ; Dajeong KIM ; Ehn Kyoung CHOI ; Jae Cheol SON ; Seock Yeon HWANG ; Yun Bae KIM
Laboratory Animal Research 2012;28(1):55-60
Effects of egg york containing IgY specific for Helicobacter pylori on the bacterial growth and intragastric infection were investigated in comparison with a proton-pump inhibitor pantoprazole. For in vitro anti-bacterial activity test, H. pylori (1x108 CFU/mL) was incubated with a serially diluted IgY for 3 days. As a result, IgY fully inhibited the bacterial growth at 16 mg/mL, which was determined to a minimal inhibitory concentration. In vivo elimination study, male C57BL/6 mice were infected with the bacteria by intragastric inoculation (1x108 CFU/mouse) 3 times at 2-day intervals, and 2 weeks later, orally treated twice a day with 50, 100, 200 or 500 mg/kg IgY for 18 days. After the final administration, biopsy sample of the gastric mucosa was assayed for the bacterial identification via urease, oxidase, catalase, nitrate reduction and H2S tests in addition to microscopic examination for mucosal inflammation. In CLO kit test, 75, 50, 12.5 and 12.5% of the animals revealed positive reaction following treatment with 50, 100, 200 and 500 mg/kg IgY, respectively, resulting in a superior efficacy at 200 mg/kg than 30 mg/kg pantoprazole that displayed 75% elimination. The CLO test results were confirmed by bacterial identification. Microscopic examination revealed that H. pylori infection caused severe gastric mucosal inflammation, which were not observed in the CLO-negative mice following treatment with IgY or pantoprazole. Taken together, IgY inhibited the growth of H. pylori, and improved gastritis and villi injuries by eliminating the bacteria from the stomach. The results indicate that IgY could be a good candidate overcoming tolerance of antibiotics for the treatment of H. pylori-mediated gastric ulcers.
2-Pyridinylmethylsulfinylbenzimidazoles
;
Animals
;
Anti-Bacterial Agents
;
Bacteria
;
Biopsy
;
Catalase
;
Gastric Mucosa
;
Gastritis
;
Helicobacter pylori
;
Humans
;
Immunoglobulins
;
Inflammation
;
Male
;
Mice
;
Ovum
;
Oxidoreductases
;
Stomach
;
Stomach Ulcer
;
Urease
8.An ethanolic extract of Angelica gigas improves atherosclerosis by inhibiting vascular smooth muscle cell proliferation.
Ja Young JANG ; Jihyun KIM ; Jingmei CAI ; Youngeun KIM ; Kyungha SHIN ; Tae Su KIM ; Sung Pyo LEE ; Sung Kyeong PARK ; Ehn Kyoung CHOI ; Yun Bae KIM
Laboratory Animal Research 2014;30(2):84-89
The effects of an ethanolic extract of Angelica gigas (EAG) on the vascular smooth muscle cell (VSMC) proliferation and high-cholesterol diet-induced hypercholesterolemia and atherosclerosis were investigated. Rat aortic VSMCs were stimulated with platelet-derived growth factor-BB (25 ng/mL) for the induction of DNA synthesis and cell proliferation. EAG (1-10 microg/mL) significantly inhibited both the thymidine incorporation and cell proliferation in a concentration-dependent manner. Hypercholesterolemia was induced by feeding male New Zealand white rabbits with 0.5% cholesterol in diet for 10 weeks, during which EAG (1% in diet) was given for the final 8 weeks after 2-week induction of hypercholesterolemia. Hypercholesterolemic rabbits exhibited great increases in serum total cholesterol and low-density lipoproteins (LDL) levels, and finally severe atheromatous plaque formation covering 28.4% of the arterial walls. EAG significantly increased high-density lipoproteins (HDL), slightly decreased LDL, and potentially reduced the atheroma area to 16.6%. The results indicate that EAG attenuates atherosclerosis not only by inhibiting VASC proliferation, but also by increasing blood HDL levels. Therefore, it is suggested that EAG could be an alternative or an adjunct therapy for the improvement of hypercholesterolemia and atherosclerosis.
Angelica*
;
Animals
;
Atherosclerosis*
;
Cell Proliferation*
;
Cholesterol
;
Diet
;
DNA
;
Ethanol*
;
Humans
;
Hypercholesterolemia
;
Lipoproteins, HDL
;
Lipoproteins, LDL
;
Male
;
Muscle, Smooth, Vascular*
;
Plaque, Atherosclerotic
;
Rabbits
;
Rats
;
Thymidine
9.In vitro and in vivo anti-Helicobacter pylori activities of FEMY-R7 composed of fucoidan and evening primrose extract.
Jingmei CAI ; Tae Su KIM ; Ja Young JANG ; Jihyun KIM ; Kyungha SHIN ; Sung Pyo LEE ; Ehn Kyoung CHOI ; Sa Hyun KIM ; Min PARK ; Jong Bae KIM ; Yun Bae KIM
Laboratory Animal Research 2014;30(1):28-34
Effects of FEMY-R7, composed of fucoidan and evening primrose extract, on the bacterial growth and intragastric infection of Helicobacter pylori as well as gastric secretion were investigated in comparison with a proton-pump inhibitor pantoprazole. For in vitro anti-bacterial activity test, H. pylori (1x10(8) CFU/mL) was incubated with a serially-diluted FEMY-R7 for 3 days. As a result, FEMY-R7 fully inhibited the bacterial growth at 100 microg/mL, which was determined to be a minimal inhibitory concentration. In addition, 6-hour incubation with H. pylori, FEMY-R7 inhibited urease activity in a concentration-dependent manner, showing a median inhibitory concentration of 1,500 microg/mL. In vivo elimination study, male C57BL/6 mice were infected with the bacteria by intragastric inoculation (5x10(9) CFU/mouse) 3 times at 2-day intervals, and simultaneously, orally treated twice a day with 10, 30 or 100 mg/kg FEMY-R7 for 7 days. In Campylobcter-like organism-detection test and bacterial identification, FEMY-R7 exerted a high bacteria-eliminating capacity at 30-100 mg/kg, comparably to 30 mg/kg pantoprazole. In contrast to a strong antacid activity of pantoprazole in a pylorus-ligation study, FEMY-R7 did not significantly affect gastric pH, free HCl, and total acidity, although it significantly decreased fluid volume at a low dose (10 mg/kg). The results indicate that FEMY-R7 eliminate H. pylori from gastric mucosa by directly killing the bacteria and preventing their adhesion and invasion, rather than by inhibiting gastric secretion or mucosal damage.
Animals
;
Bacteria
;
Gastric Mucosa
;
Helicobacter pylori
;
Homicide
;
Humans
;
Hydrogen-Ion Concentration
;
Male
;
Mice
;
Oenothera biennis*
;
Urease
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.