• Title/Summary/Keyword: Subacute

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Subacute Toxicity Study of 40 kGy Irradiated Ready-to-Eat Bulgogi

  • Park, Jin-Gyu;Kim, Jae-Hun;Byun, Myung-Woo;Jeon, Young-Eun;Kang, Il-Jun;Hwang, Han-Joon;Lee, Ju-Woon
    • Preventive Nutrition and Food Science
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    • v.16 no.1
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    • pp.83-88
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    • 2011
  • The wholesomeness of 40 kGy irradiated ready-to-eat (RTE) bulgogi was evaluated by subacute toxicity studies (body weight, food consumption, organ weight, hematology, serum biochemistry, and histopathological examination) with groups of 40 male and female ICR mice fed the agent at dietary levels of 5% for 90 days. There were no treatment-related adverse effects with regard to body weight, food consumption, organ weight, hematology, serum biochemistry, and histopathology. The no-observed-adverse-effect-level (NOAEL) was also determined to be greater than dietary level of at least 5% (3900 mg/kg body weight/day for males, 3500 mg/kg body weight/ day for females) for samples under the present experimental conditions. These results suggest that, under these experimental conditions, RTE bulgogi irradiated at 40 kGy did not show any toxic effects.

Subacute Oral Toxicity of Taeumjowi-tang in SD Rats (태음조위탕(太陰調胃湯)의 경구 투여에 의한 SD계 흰쥐의 아급성 독성시험 연구)

  • Yu, Tae-Weon;Choi, Bong-Jae;Park, Soo-Yeon;Chang, Mun-Seog;Park, Seong-Kyu
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.23 no.4
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    • pp.848-852
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    • 2009
  • Taeumjowi-tang is originated in Donguisusebowon edited by Lee Je-Ma. The objective of this study was to investigate the subacute toxicity of Taeumjowi-tang in rats. Several doses(0, 125, 250, 500, 1,000, and 2,000 mg/kg) of Taeumjowi-tang were administered to rats for 4 weeks. The mortality, clinical signs, body weights and gross findings were examined for experimental period. No dead animals were found during the experimental period. In addition, any differences were not found between control and treated groups in clinical signs, hematology, serum biochemistry, and other findings. In conclusion, the no observed adverse effect level(NOAEL) for Taeumjowi-tang was over 2,000 mg/kg/day in rats.

Study for Three-months Subacute Toxicity of Water-soluble DDB Derivative in Beagle Dogs (비글개에서 수용성 DDB 유도체의 3개월 반복투여독성에 관한 연구)

  • 김민영;손장원;신민기;배미옥;김정현;방명주;최진혁;김준성;문전옥
    • Toxicological Research
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    • v.16 no.3
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    • pp.239-253
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    • 2000
  • This study was carried out to evaluate the three months subacute intravenous toxicity of water soluble dimethyl dimethoxy biphenylate derivative (DDB-S), a newly formulated therapeutic agent for hepatitis, in Beagle dogs. Groups of 12 male and 12 female dogs were given different dosage of DDB-S, 10 mg/kg/day (high dose group), 5 mg/kg/day (middle dose group), 2.5 mg/kg/day (low dose group) and 0 mg/kg/day (control group) for three months by intravenous route. 1n the three months intravenous toxicity study, there were neither dead animals nor significant changes of body weights during the experimental period. 1n addition to, no significant DDB-S related changes were found in clinical signs, urinalysis and other findings. Statistical changes were observed in hematological. biochemical, partial thromboplastin time (PIT) and organ weight parameters of treated groups. However, these alteration had no relationship with dosage. No histopathological lesions were observed in both control and treated animals. Above data suggest that no observed adverse effect level of test materials in Beagle dogs might be over 10 mg/kg/day in this study.

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Subacute Toxicity of G009, a Polysaccharide Isolated from Ganoderma lucidum IY009 (영지버섯으로부터 분리한 단백다당체, G009의 아급성독성시험)

  • 서경원;조일상;오미현;이경민;김효정
    • Journal of Food Hygiene and Safety
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    • v.11 no.4
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    • pp.261-271
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    • 1996
  • It has been reported that G009, polysaccharide isolated from Ganoderma lucidum IY009 has various pharmacological effects, such as antinflamatory, antiviral, anticarcinogenic and immunmodulation effects. The purpose of this study was to determine the subacute toxicity of orally administered G009 in Sprague-Dawley rats. Groups of 40 male and 40 female rats were gavaged with 0, 500, 1,000 or 2,000 mg/kg/day for 30 days. No drug-related deaths and clinical morbidities were resulted. There was no drug-related effect on the body weight gain, food consumption and water consumption. Statistically significant changes were observed in several hematological and biochemical parameters of G009-treated groups; however, most of these changes were within normal range and had no relationship to dosage. Urinalysis and bone marrow biopsy showed no remarkable changes in all treated groups. Gross necropsy and hisopathology revealed no evidence of specific toxicity related to G009. Our data indicate that no-observed effect level of G009 is estimated to be above 2,000 mg/kg/day in rats.

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Burr hole drainage using urokinase for treatment of subacute subdural hematoma (아급성기 경막하 혈종 치료시 천공술 후 urokinase를 이용한 혈종배액술)

  • Kim, Min-Su;Kim, Seong-Ho;Kim, Oh-Lyong
    • Journal of Yeungnam Medical Science
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    • v.32 no.1
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    • pp.8-12
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    • 2015
  • Background: Enlargement of subdural hematomas is relatively rapid in subacute stage of hematoma with clinical deterioration, which eventually necessitates surgery. The purpose of this study is to investigate the feasibility and safety of burr hole drainage using urokinase for management of patients with subacute subdural hematoma (SASDH). Methods: Nine patients with SASDH were treated by burr hole drainage using urokinase. Under local anesthesia a catheter was inserted into the hematoma through a burr hole. Burr hole drainage was followed by hematoma thrombolysis with instillation of urokinase (10,000 units) every 12 hours. Drainage was discontinued when a significant decrease of hematoma was observed on cranial computed tomography. Results: The patients' median age was 70 years (range, 62-87). The median Glasgow Coma Scale score before surgery was 15 (range, 11-15). Drainage was successfully performed in all patients. All patients had Glasgow Outcome Scale scores of 5 at discharge. There was no surgery-related morbidity or mortality. Conclusion: A burr hole drainage using urokinase could be a safe, feasible and effective minimally invasive method with low morbidity in treatment of selected patients with SASDHs.

Effects of single-leg stance training of the involved leg on standing balance and mobility in patients with subacute hemiplegia (환측 한발서기 훈련이 아급성기 편마비 환자의 균형과 이동능력에 미치는 영향)

  • Lee, Jin;Lee, Kang-Noh
    • The Journal of Korean Physical Therapy
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    • v.23 no.4
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    • pp.1-6
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    • 2011
  • Purpose: We investigated the effects of single-leg stance training on standing balance and mobility in patients with subacute hemiplegia. Methods: Seventeen matched subjects were assigned randomly to the experimental group or the control group. The experimental group comprising of 8 subjects received single-leg stance training and conventional physical therapy interventions 5 times per week for 4 weeks. The control group comprising of 9 subjects received only conventional physical therapy interventions 5 times per week for 4 weeks. Outcome measures were assessed before and after 4 weeks of intervention using the Berg Balance Scale (BBS), gait speed, and weight bearing index of the affected side. Results: Both the exercise groups showed significant improvements in BBS, gait speed, and weight bearing index (p<0.05). After 4 weeks of intervention, there were statistically significant differences in BBS and weight bearing index between the two groups (p<0.05). Conclusion: These findings suggest that conventional physical therapy interventions along with single-leg stance training could be more effective than conventional physical therapy alone for improving standing balance and mobility in patients with subacute hemiplegia.

Effectiveness of Gait Training Using an Electromechanical Gait Trainer Combined With Simultaneous Functional Electrical Stimulation in Chronic Stroke Patients (기능적 전기 자극을 적용한 전동식 보행 훈련이 편마비 환자의 보행에 미치는 영향)

  • An, Seung-Hun;Lee, Yun-Mi;Yang, Kyung-Hee
    • The Journal of Korean Physical Therapy
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    • v.20 no.1
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    • pp.41-47
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    • 2008
  • Purpose: This study aimed to assess the effectiveness of gait training with the use of an electromechanical gait trainer with functional electrical stimulation (FES) for patients that had undergone subacute stroke. Methods: The study subjects included nine subacute stroke patients of the Korea National Rehabilitation Center in Seoul, Korea. Outcome was measured using the timed Up and Go test, Fugl-Meyer-L/E assesment, with determination of the comfortable maximal gait speed, composite spasticity score, functional ambulatory category and Berg balance scale. All measured scores were recorded before, during, and after rehabilitation and at an eight-week follow-up. Results: Patients who received electromechanical-assisted gait training in combination with FES after subacute stroke were more likely to achieve independent walking, functional activities, balance and gait speed. Conclusion: The outcome of our gait-training program demonstrates that it may be practical to integrate FES into electromechanical gait training without any adverse effects. However, further randomized controlled studies are needed to evaluate if patient outcome after combined training is superior to outcome after the use of electromechanical gait trainer treatment alone or conventional gait training alone.

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The Study on Acute and Subacute Toxicity and Sarcoma-180 Anti-cancer Effects of Vermilionum (영사(靈砂)의 급성(急性).아급성(亞急性) 독성(毒性) 및 Sarcoma-180 항암효과(抗癌效果)에 관(關)한 문헌적(文獻的) 연구(硏究))

  • Kwon, Ki-Rok
    • Journal of Pharmacopuncture
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    • v.6 no.3
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    • pp.39-47
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    • 2003
  • Background & Methods : In order to measure the acute and subacute toxicity of Vermilionum and it's anti-cancer effects, Sarcoma-180 abdominal cancer cells were injected intravenously. The following results were obtained after measuring the survival rate, toxicity of the NK cells, and IL- 2 productivity. Results : 1. It was impossible to measure $LD_{50}$ value in the acute toxicity test and no toxic effects were witnessed in the clinical observation. 2. No significant differences were shown in the weight changes between the experiment groups and the control group in the acute toxicity test. 3. No peculiar toxic effects were shown in the subacute toxicity test and the weight changes were insignificant between the experiment groups and the control group. 4. In measuring the survival rate after inducing abdominal cancer by Sarcoma-180, the experiment groups showed increased of 9.52% compared to the control group. 5. In measuring the activity of NK cells, no significant changes were shown between the experiment groups and the control group. 6. In measuring the productivity of IL-2, significant reduction was shown in the experiment groups compared to the normal group, but no significance was witnessed compared to the control group.

Subacute Toxicity of DWH-01(Ranitidine : Bismuth subcitrate : Sucralfate) in rats (랫트에 있어서 DWH-01(Ranitidine : Bismuth subcitrate : Sucralfate)의 아급성독성에 관한 연구)

  • 박선미;김형식;김용기;변수현;연제덕;유영효;이병무;이향우
    • YAKHAK HOEJI
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    • v.37 no.4
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    • pp.408-419
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    • 1993
  • Subacute toxicities of DWH-Ol(Ranitidine : Bismuth : Sucralfate=1.5:2:6) were inverstigated in Sprague-Dawley rats. After oral administration of DWH-01 with different dosages of 5 g/kg, l g/kg, and 0.2 g/kg, we examined the number of deaths, general signs, food intake, water intake, body weight and histopatholgical changes for both sexes of rats. During the adminstration period, urinalysis and opthalmological examination were also performed in the treated animals. 1) Animals were all survived for 4 weeks. 2) There were no significant differences in pathological and opthalmological findings between the control and treated animals. 3) There were no significant changes in body weight, food intake and water intake compared with control group. 4) In hematological examination and blood chemical analysis, there was no significant change compared with control group. 5) In histopathological examinations of organs and tissues, there was some hemorrhage in a lung tissue of low dose group, but it was thought to be caused by environmental factor. These data suggest that DWH-01 is not subacutely toxic in Sprague-Dawley rats.

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Subacute Intravenous Toxicity Study of Recombinant Human Erythropoietin(rHu-EPO) in Rats (랫드에서 인체 재조합 적혈구 조혈인자, rHu-EPO의 아급성정맥독성시험)

  • 김형식;곽승준;천선아;임소영;박현선;홍채영;김원배;김병문;안병옥
    • Toxicological Research
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    • v.12 no.2
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    • pp.309-318
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    • 1996
  • This study was conducted to investigate the subacute intravenous toxicity of rHu-EPO in Sprague-Dawley rats. rHu-EPO was daily administered to male and female rats for 30 days with different dose levels(100, 500, 2,500 unit/ kg). After the administration period of 30 days, 5 males and 5females rats per each dose group were assigned for recovery period of additional 30 days. There were no clinical signs compared with control group but slight decrease in spontaneous motor activities and locomotions were observed at high dose groups of males and females. In males, feed consumption was reduced at 500 unit/kg and body weight gain was retarded. In the administration sites of tail, focal congestion was observed in a few animals treated with rHu-EPO. No deaths were occurred during the course of study. In hematological examination. a significant increase of hemoglobin and hematocrit was observed in the males and females rats receiving high dose of rHu-EPO. rHu-EPO administration for 30 days showed a marked decrease in glucose concentration. At the highest dose groups, there was a significant incerase in the weights of spleens in both sexes. but this was considered to be related to its pharmacological activity. These results indicate that rHu-EPO does not induce any significant toxic effect on Sprague-Dawley rats for 30 days.

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