Objectives: This study was carried out to analyze the single-dose toxicity of ShinYangHur (SYH) herbal acupuncture injected into the muscles of Sprague-Dawley (SD) rats. Methods: The SYH herbal acupuncture was made in a clean room at the Korean Pharmacopuncture Institute (KPI, Korea-Good Manufacturing Practice, K-GMP). After the mixing process with sterile distilled water, the pH was controlled to between 7.0 and 7.5. Then, NaCl was added to make a 0.9% isotonic solution by using sterilized equipment. All experiments were conducted at Biotoxtech, an institution authorized to perform non clinical studies under the regulations of Good Laboratory Practice (GLP). SD rats were chosen for the pilot study. Doses of SYH herbal acupuncture, 0.25, 0.5, and 1.0 mL, were administered to the experimental groups, and a dose of normal saline solution, 1.0 mL, was administered to the control group. This study was conducted under the approval of the Institutional Animal Ethics Committee. Results: No deaths or abnormalities occurred in any of the four groups. No significant changes in weight, hematological parameters or clinical chemistry between the control group and the experimental groups were observed. To check for abnormalities in organs and tissues, we used microscopy was used to examine representative histological sections of each specified organ; the results showed no significant differences in any of the organs or tissues. Conclusion: The above outcomes suggest that treatment with SYH herbal acupuncture is relatively safe. Further studies on this subject are needed to yield more concrete evidence.
Journal of the Korea Institute of Military Science and Technology
/
v.20
no.4
/
pp.587-596
/
2017
In this study, multi-chambered single autoinjector(2in1) and KMARK-1 containing atropine and 2-PAM(pyridine-2-aldoxime methylchloride) were administered to the beagle's muscle, and blood samples were taken for a certain period of time to compare and evaluate the pharmacokinetic profiles of the two drugs. Male beagles were used and classified into two test groups(G1, G2), and crossover pharmacokinetic studies were performed in two test groups. Blood samples were collected from the jugular vein for analysis after administration. The 90 % confidence interval(CI) for log transformed data indicated that the Cmax for both atropine(log 0.9683 ~ log 1.113) and 2-PAM(log 0.9453 ~ log 1.214) was within the limits of bioequivalence criteria, but the AUC for atropine(log 1.1786 ~ log 1.3238) failed to meet this criteria. This is expected as the amount of atropine dose is 25 % higher for the test as compared to the reference formulation. In summary, in view of the ATNAA(antidote for nerve agent of US) authorization, the Cmax equivalence was more important than AUC equivalence, so in this study, we also focused on verifying the equality of Cmax between the two autoinjectors.
Kim, Jong-Dae;Seo, Il-Bock;Lee, Dong-Nyung;Kim, Hyung-Jun
The Journal of Korean Obstetrics and Gynecology
/
v.24
no.1
/
pp.27-41
/
2011
Objectives: This study was designed to investigate the effect of Ojeok-san(OJS) on the estradiol valerate(EV)-induced polycystic ovaries(PCO) in rats. Methods: PCO was induced by single intramuscular injection with estradiol valerate(EV)(4mg) in female rats. Normal group(n=8) were injected with sesame oil and orally administrated distilled water for sixty days. PCO control group (n=8) were injected with EV and orally administrated distilled water for sixty days. OJS treated group(n=8) were injected with EV and orally administrated OJS for sixty days. Then, we measured weights of body, ovaries, adrenal glands and uterus of rats. The histomorphometrical changes of ovaries were also evaluated. And we observed the NGF and CRF expression by immunohistochemistry. Results: The results were as follows - The weights(mg) of ovaries in OJS treated group($57.4{\pm}9.4$) were significantly increased(p < 0.05) compared with PCO control group($42.3{\pm}8.5$). - The numbers of mature follicles in OJS treated group($9.3{\pm}2.5$) were significantly increased(p < 0.05) compared with PCO control group($6.1{\pm}2.1$). - The expressions of NGF-immunoreactive cells in the ovarian granulosa cells in OJS treated group were weaker than PCO control group. Conclusion: From the these results, we concluded that Ojeok-san(OJS) has inhibitory effect on the development of EV-induced polycystic ovary. And it's effect maybe related with decreased NGF activities in the ovary.
Journal of the Korean Society of Food Science and Nutrition
/
v.27
no.5
/
pp.952-959
/
1998
To investigate the effect of sea tangle on macrophage activity in normal and diabetic states, 10week old ICR mice were fed control(C) and sea tangle(S) diet containing 5%(w/w) cellulose and 13.6%(w/w) dry sea tangle for four weeks, after which two thirds of mice(CD and SD) were made diabetic by intramuscular injection of streptozotocin(150mg/kg bw). At 4th day after diabetes was apparent by urinary glucose, one half of diabetic mice(CDM and SDM) were treated with metformin(500mg/kg bw) orally. Peritoneal macrophages obtained from 3%-thioglycollate treated mice were cultured in the presence of lipopolysaccaride from Salmonella abortus equi(10$\mu\textrm{g}$/ml) for 24 hrs and tumor necrosis factor-$\alpha$(TNF$\alpha$), interleukin-1$\beta$(1L-1$\beta$)and prostaglandin E2(PGE2) were measured in culture media. Release of IL-1$\beta$and PGE2 from macrophage were increased in normal mice by sea tangle diet and had the same tedency in diabetic mice with or without metformin treatment although not statistically significant. Release of TNF$\alpha$ tended to be reduced by diabetes but were not changed significantly by sea tangle diet. Fatty acid compositions of macrophage and liver phospholipids showed that diabetes reduced arachidonic acid/linoleic acid ratio and sea tangle diet appeared to increase contentsof polyunsaturated fatty acids.
Journal of the Korean Society of Food Science and Nutrition
/
v.27
no.5
/
pp.960-967
/
1998
The present study was conducted to investigate the effect of sea tangle and hypoglycemic agent on lipid metabolism in normal and dabetic rats. Male Sprague-Dawely rats were fed AIN-76 based experimental diets containing 5%(w/w) cellulose or 15%(w/w) sea tangle for 3 weeks, after which diabetic groups were made diabetic by intramuscular injection of streptozotocin(STZ, 45mg/kg BW). Metformin(350mg/kg BW) as a hypoglycemic agent was given once a day using a feeding tube for 5 days. Body weight grains were reduced significantly by STZ treatment, but not influenced by metformin feeding. Blood glucosel levels in sea tangle groups were reduced, compared with those in cellulose groups. Metformin feeding showed the lowering effect of blood glucose. Plasma levels of triglyceride were increased significantly in diabetic rats, but decreased in metformin group by sea tangel feeding. Total cholestero contents showed a similar tendency with triglyceride, but were reduced in diabetic groups without metformin by sea tangle feeding. Plasma levels of HDL-cholesterol were reduced in diabetic rats, compared with those in normal rats. There was a significant increase in fecal weights in diabetic rats fed sea tangle. Fecal contents of cholesterol were lower in diabetic rats than in normal rats. In normal rats, it tended to increase by sea tangle feeding, but not significantly. Fecal excretions of coprostanol and coprostanone were reduced significantly in diabetic rats, compared with those of normal rats. It tended to increase in diabetic rats by simultaneous feeding of sea tangle and metformin, but not significantly. Diabetes reduced fecal excretion of bile acid, but it was increased by sea tangle and metformin feeding.
Introduction: The legal duties of Korean dental hygienists are different from the actual tasks. These factors cause dental hygienists to experience work stress. Therefore, it is necessary to investigate what tasks the dental hygienist expects to perform. Methods: This study examined the perception of dental hygienists' work on 158 prospective graduates of the 3rd-year and 4th-year course of dental hygiene. The questionnaire about the dental hygienist's duties was prepared based on the job description of dental hygienists by the Korea Health Personnel Licensing Examination Institute. Results: More than 84% said that all of the work in the second job description was possible as dental hygienists. subjects responded that the following items were not dental hygienists' duties: treatment plan based on medical history and dental history, treatment plan based on an intraoral and extraoral examination, treatment plan based on the results of teeth and periodontal examination, analysis of oral health data in community, planning of oral health promotion in community, planing of water fluoridation, reading of radiography, root planing, physical treatment on head and neck, using an ultrasonic device on head and neck, dealing with laser devices, making a temporary crown, suture and stitch-out, and intramuscular injection. Conclusions: Most graduates of dental hygiene departments have recognized that the tasks described in the second job description are dental hygienists' work; therefore, it is necessary to improve the gap between expected work and legal work.
Asghari, Reza;Shokri-Asl, Vahid;Rezaei, Hanieh;Tavallaie, Mahmood;Khafaei, Mostafa;Abdolmaleki, Amir;Seghinsara, Abbas Majdi
Clinical and Experimental Reproductive Medicine
/
v.48
no.3
/
pp.245-254
/
2021
Objective: In humans, polycystic ovary syndrome (PCOS) is an androgen-dependent ovarian disorder. Aberrant gene expression in folliculogenesis can arrest the transition of preantral to antral follicles, leading to PCOS. We explored the possible role of altered gene expression in preantral follicles of estradiol valerate (EV) induced polycystic ovaries (PCO) in a mouse model. Methods: Twenty female balb/c mice (8 weeks, 20.0±1.5 g) were grouped into control and PCO groups. PCO was induced by intramuscular EV injection. After 8 weeks, the animals were killed by cervical dislocation. Blood serum (for hormonal assessments using the enzyme-linked immunosorbent assay technique) was aspirated, and ovaries (the right ovary for histological examinations and the left for quantitative real-time polymerase) were dissected. Results: Compared to the control group, the PCO group showed significantly lower values for the mean body weight, number of preantral and antral follicles, serum levels of estradiol, luteinizing hormone, testosterone, and follicle-stimulating hormone, and gene expression of TGFB1, GDF9 and BMPR2 (p<0.05). Serum progesterone levels were significantly higher in the PCO animals than in the control group (p<0.05). No significant between-group differences (p>0.05) were found in BMP6 or BMP15 expression. Conclusion: In animals with EV-induced PCO, the preantral follicles did not develop into antral follicles. In this mouse model, the gene expression of TGFB1, GDF9, and BMPR2 was lower in preantral follicles, which is probably related to the pathologic conditions of PCO. Hypoandrogenism was also detected in this EV-induced murine PCO model.
Susilowati, Suherni;Sardjito, Trilas;Mustofa, Imam;Widodo, Oky Setio;Kurnijasanti, Rochmah
Animal Bioscience
/
v.34
no.2
/
pp.198-204
/
2021
Objective: The aim of this study was to ascertain the effects of adding green tea extract (GTE) to skim milk-egg yolk (SM-EY) extender on both the quality of post-thawed bull semen and the pregnancy rates of the recipient cows. Methods: Twelve ejaculates from four Simmental bulls, aged 3 to 5 years and weighing 900 to 950 kg, were diluted SM-EY extender, added with 0, 0.05, 0.1, and 0.15 mg GTE/100 mL extender and then frozen. After four weeks storage in liquid nitrogen, the sperm were thawed and evaluated for viability, motility, intact plasma membrane (IPM), and DNA fragmentation. Meanwhile, the estrus cycles of 48 recipient cows were synchronized by intramuscular administration of a single injection of 5 mg prostaglandin F2α. Estrus cows were divided into four equal groups and inseminated artificially 18 to 20 h after the onset of estrus by using semen from each extender group. Pregnancy was diagnosed by measuring serum progesterone levels at 21 days, followed by transrectal palpation 90 days after insemination. Results: The findings revealed that adding 0.1 mg of GTE/100 mL extender produced the highest percentages of sperm viability (70.67%±1.75%), motility (69.17%±1.47%), and IPM (69.23%±1.21%) and the lowest percentage of DNA fragmentation (3.00%±0.50%). The pregnancy diagnosis revealed that all cows (36/36) inseminated using frozen semen in GTE addition extender were pregnant (pregnancy rate 100%), whereas the pregnancy rate of the control group was 83.33% (10/12). Conclusion: It may be concluded that 0.1 mg GTE/100 mL extender yields the best quality of spermatozoa and that all variants doses of GTE in extender produce a higher pregnancy rate among recipient cows.
Kim, Jin Yeo;Park, Ji Eun;Jung, Min Jae;Kim, Jae Song;Kim, Soo Hyun;Son, Eun Sun
Journal of Korean Society of Health-System Pharmacists
/
v.35
no.4
/
pp.400-408
/
2018
Background : Palivizumab is an intravenous monoclonal antibody which is used in the prevention of respiratory syncytial virus (RSV) infection. It is currently recommended for infants who are at high-risk for RSV infections due to preterm birth or other medical conditions such as congenital heart disease. Palivizumab is a humanized monoclonal antibody directed against an epitope in the antigenic site A of the protein F of RSV particles. Palivizumab is given once a month via intramuscular (IM) injection throughout the duration of the RSV season. Since palivizumab is known to have preventive effects against RSV infection for children with older siblings, the insurance coverage for palivizumab was expanded in October 2016. Methods : The electronic medical records of children under 2 years old who have older siblings who visited or were admitted to the Severance Hospital from October 2015 to May 2016 and from October 2016 to May 2017 were reviewed retrospectively. The data were then divided into two groups depending on the pilivizumab administration. Results : A total of 67 patients were enrolled in this study. The effectiveness in the reduction of hospitalization was statistically significant (p=0.009). Palivizumab decreased respiratory symptoms such as cough, rhinorrhea, and fever in patients with older siblings (p 0.05). Conclusions : In this study, palivizumab administration was effective in preventing RSV infection in infants with older siblings. Expanding palivizumab-prophylaxis administration to infants with older siblings may be effective in the prevention of upper respiratory infections.
Kim, Ba Reun;Yoon, Jung Won;Choi, Hyukjun;Kim, Dasol;Kang, Sebyung;Kim, Jae Ho
BMB Reports
/
v.55
no.4
/
pp.175-180
/
2022
Peptides are gaining substantial attention as therapeutics for human diseases. However, they have limitations such as low bioavailability and poor pharmacokinetics. Periostin, a matricellular protein, can stimulate the repair of ischemic tissues by promoting angiogenesis. We have previously reported that a novel angiogenic peptide (amino acids 142-151) is responsible for the pro-angiogenic activity of periostin. To improve the in vivo delivery efficiency of periostin peptide (PP), we used proteins self-assembled into a hollow cage-like structure as a drug delivery nanoplatform in the present study. The periostin peptide was genetically inserted into lumazine synthase (isolated from Aquifex aeolicus) consisting of 60 identical subunits with an icosahedral capsid architecture. The periostin peptide-bearing lumazine synthase protein cage nanoparticle with 60 periostin peptides multivalently displayed was expressed in Escherichia coli and purified to homogeneity. Next, we examined angiogenic activities of this periostin peptide-bearing lumazine synthase protein cage nanoparticle. AaLS-periostin peptide (AaLS-PP), but not AaLS, promoted migration, proliferation, and tube formation of human endothelial colony-forming cells in vitro. Intramuscular injection of PP and AaLS-PP increased blood perfusion and attenuated severe limb loss in the ischemic hindlimb. However, AaLS did not increase blood perfusion or alleviate tissue necrosis. Moreover, in vivo administration of AaLS-PP, but not AaLS, stimulated angiogenesis in the ischemic hindlimb. These results suggest that AaLS is a highly useful nanoplatform for delivering pro-angiogenic peptides such as PP.
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