• Title/Summary/Keyword: Experimental diabetes mellitus

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Aerobic and Graduated Treadmill Exercise Decreases Blood Glucose Levels, Lipid Levels and Oxidative Stress in an Animal Model of Type 1 Diabetes Mellitus

  • Kim, Eun-Jung;Kim, Gye-Yeop
    • The Journal of Korean Physical Therapy
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    • v.22 no.6
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    • pp.65-70
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    • 2010
  • Purpose: Exercise has been shown to be a simple and economical therapeutic modality that may be considered as an effective aid for diabetic mellitus. For example, exercise training increases insulin sensitivity in type 2 diabetes. But we found no reported of how exercise affect type 1 diabetes. This study investigated the impact of aerobic and graduated treadmill exercise regimens on body weight, glucose and insulin concentrations, lipid profiles, and oxidative stress indicators in rats with streptozotocin (STZ) induced diabetes. Glycosylated hemoglobin ($HbA_{1c}$) was determined as an indicator of glucose control during exercise. Methods: In our study, a total of 40 rats were used. Three groups of 10 rats each were given STZ to induce diabetes. The remaining 10 rats became the normal group. After 28 days we determined biochemical parameters such as glucose, glycosylated hemoglobin ($HbA_{1c}$), insulin concentration, serum total cholesterol (TC), triglycerides (TG), and high-density lipoprotein (HDL). Superoxide dismutase (SOD) and catalase activities were also measured. Results: Concentrations of blood glucose and $HbA_{1c}$ in the moderated exercise groups were significantly decreased after 28 days compared with the control group (p<0.05). There was a significant reduction in serum TC and TG in the experimental groups. The activity of SOD increased significantly by 17.70% and 48.25% respectively. Conclusion: These results indicate that physical training and exercise training affects body weight, fasting blood glucose, $HbA_{1c}$, insulin, lipid profiles, and antioxidant status in rats with streptozotocin-induced diabetes. We suggest that graduated treadmill exercise may have therapeutic, preventative, and protective effects against diabetes mellitusby improving glycemic control, oxidant defenses, and lipid metabolism.

Effect of the Dietary Protein Level on Plasma Glucose, Lipids and Hormones in Streptozotocin-Diabetic Rats

  • Han Yung Joo
    • Journal of Nutrition and Health
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    • v.26 no.7
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    • pp.851-857
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    • 1993
  • Atherosclerotic vascular disease is a major cause of the increased morbidity and mortality assciated with diabetes mellitus. The prominent role of nutrition in hypercholesteolemia and atherosclerosis is generally accepted. Diet is a key element in the management of diabetes (type I-IDDM), yet the appropriate diet for patient with diabetes mellitus is not well known. Dietary protein has been shown to have a significant effect on plasma cholesterol levels in both experimental animals and humans. The present experiment was designed to determine the effect of the dietary protein level(20% vs 60%) on plasma glucose concentration, lipids profile, insulin and glucagon levels from non-diabetic and streptozotocin-induced diabetic rats. Results showed that a high protein diet decreased triglyceride concentration in diabetic rats. Also diabetic rats fed a high protein diet were hypocholesterolemic than rats fed a control diet. There were no effects by level of protein on fasting blood glucose concentration and insulin/glucagon ratio. Results from the present study suggest that a high protein diet may be beneficial to control pasma lipids in chemically-induced diabetic rats.

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Type 2 Diabetes Mellitus in Children (소아연령에서의 2형 당뇨병의 임상적 고찰)

  • Park, Jee Min;Yoo, Eun Gyong;Kim, Duk Hee
    • Clinical and Experimental Pediatrics
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    • v.45 no.5
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    • pp.646-653
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    • 2002
  • Purpose : The incidence of type 2 diabetes mellitus in children has been increasing worldwide recently, which is thought to be related to the increasing prevalence of obesity. We investigated to evaluate the incidence and the characteristics of type 2 diabetes mellitus in children and also analysed the relationship between intrauterine growth retardation and type 2 diabetes mellitus. Methods : We investigated 25 children diagnosed as type 2 diabetes mellitus between March 1990 and December 2000. The analysis was performed retrospectively with medical records based on the clinical characteristics and laborotory findings. Results : Incidence of type 1 and type 2 diabetes mellitus in children has been increasing since 1990. We demonstrated an increase in the percentage of type 2 diabetes mellitus children from 5.3% in 1990 to 21.0% in 2000. Sixty eight percent of patients(17/25) were classified as obese group. Initial symptoms at first visit were polyuria, polydipsia and polyphagia 48%(12/25), asymptomatic glycosuria 40% (10/25), weight loss 8%(2/25) and obesity 4%(1/25). The mean age at diagnosis was $12.9{\pm}1.8$ years. 64%(16/25) of patients had positive family history of type 2 diabetes mellitus. Autoanti-bodies were positive in 18.1%(4/22) of patients. Twenty eight percent (7/25) of patients had an associated disease and two patients had fatty liver in association with obesity. Treatment consisted of diet, exercise, education and oral hypoglycemic agents. Three patients were treated with insulin as well as oral hypoglycemic agents because of poor blood glucose control. Long-term diabetic complications occurred in 4 patients. Intrauterine growth retardtion was found in 34.6%(9/25); 88.9% (8/9) of these patients were non-obese group. Conclusion : The increase in the incidence of type 2 diabetes mellitus in children is thought to be related to the increasing prevalence of obesity. The non-obese group of patients might be associated with intrauterine growth retardation.

Effects of Cinnamomum Cassia and Aconitum Carmichaeli's Pharmacopuncture and Oral Administration on Blood Sugar in Type II Diabetic Mice (육계.부자의 약침과 경구투여가 2형 당뇨 모델 생쥐의 혈당강하에 미치는 영향)

  • Jung, Han-Sung;Song, Beom-Yong;Lee, Chang-Hyun;Yook, Tae-Han
    • Journal of Acupuncture Research
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    • v.27 no.5
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    • pp.1-12
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    • 2010
  • Objectives : This study was designed to evaluate the antidiabetes effects of Cinnamomum cassia and Aconitum carmichaeli in type II diabetes mellitus model mice. Methods : The experimental animals were divided into 3 groups and treated for 50 days as follows:control group, pharmacopuncture group and extract administration group. The effects of Cinnamomum cassia and Aconitum carmichaeli were observed by measuring body weight, blood glucose, insulin, insulin immunoreactivity of the pancreas and subpopulation of splenocytes. Results : Cinnamomum cassia sample groups were reduced a little body weight than control group. Glucose level of extract administration group lowered than control and pharmacopuncture group. Insulin immunoreactivity of Aconitum carmichaeli extract group appeared more effective than control and pharmacopuncture group. Conclusions : This study shows that Cinnamomum cassia and Aconitum carmichaeli have a distinct antidiabetes effect in type II diabetes mellitus model.

The effects of auricular acupressure on postprandial glucose, HbA1c, blood lipids in aged patients with type 2 diabetes mellitus (이압요법이 제2형 당뇨병 노인의 혈당, 당화혈색소 및 혈중지질에 미치는 효과)

  • Jang, Minjin;Park, Hyojung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.8
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    • pp.348-358
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    • 2020
  • The purpose of this study was to examine the effects of auricular acupressure in patients with type 2 diabetes mellitus. Data collection was conducted from March 16 to May 11, 2018. A total of 44 participants with type 2 diabetes were recruited from welfare facilities. Participants in the experimental group (n=22) and placebo control group (n=22) received auricular acupressure on diabetes-related points (shenmen, pancreas, appetite control point, thirst point, and master endocrine point) and diabetes-unrelated points. The intervention was implemented on 5 consecutive days per week for a total of 6 weeks. To examine the effects of treatment, postprandial glucose, glycated hemoglobin, and blood lipid levels were evaluated. Postprandial glucose levels in the experimental group exhibited significant reduction over time compared to those in the placebo control group (p=.030). Glycated hemoglobin levels in the experimental group decreased significantly (t=-2.44, p=.024). However, there were no significant differences in blood lipid levels between the two groups. This study demonstrates that auricular acupressure on diabetes-related points for 6 weeks was highly effective in decreasing blood glucose levels in patients with type 2 diabetes.

Effects of Sedang-hwan on Experimental Diabetic Rats induced by Streptozotocin (세당환(世糖丸)이 Streptozotocin으로 유발된 흰쥐의 실험적 당뇨에 미치는 영향)

  • Bae, Chul-Ho;Soh, Kyeong-Sun;Jeong, Chan-Gil
    • Journal of Pharmacopuncture
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    • v.9 no.1
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    • pp.33-44
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    • 2006
  • Objectives : We performed this study in order to investigate the effects of Sedang-hwan(世糖丸) on the diabetes mellitus. Methods : We injected a vein with 65mg/kg of streptozotocin(STZ) on the rats. And then administered Sedang-hwan; 18.7mg/kg/day to sample groups and observed the weight and glucose level, insulin, C-peptide, triglyceride, albumin, T-protein, BUN(Blood Urea Nitrogen) and creatinine in blood. Results : 1. The sample groups showed a high suppressive effect of weight loss(P=0.002). 2. The sample groups' glucose level showed a effective in lowering level(P=0.001). 3. The sample groups showed a higher insulin level than control groups. 4. The sample groups showed a higher C-peptide level than control groups(P=0.001). 5. The sample groups' triglyceride level showed a effective in lowering level. 6. The sample groups showed a higher HDL-cholesterol level than control groups(P<0.001). 7. The sample groups showed a higher T-protein level than control groups(P=0.04). 8. The sample groups showed a higher albumin level than control groups(P<0.001). 9. The sample groups' creatinine level showed a effective in lowering level(P=0.04). 10. The sample groups' BUN level showed a effective in lowering level(P=0.03). Conclusions : Conclusively, Sedang-hwan was recognized to have decrease effect of serum glucose, triglyceride, creatinine, BUN of the diabetic rats induced by streptozotocin. It was suggested that Sedang-hwan can be used for effective diabetes mellitus medical treatment. It is also required to study further about detailed principles of blood-sugar dropping effect by Sedang-hwan, and recovery by diabetes mellitus.

A Meta-Analysis of the Effects of Exercise Programs on Glucose and Lipid Metabolism and Cardiac Function in Patients with Type II Diabetes Mellitus (제2형 환자를 위한 운동프로그램이 당대사, 지질대사 및 심폐기능에 미치는 효과에 대한 메타분석)

  • Yoo Ji Soo;Lee Suk Jeong
    • Journal of Korean Academy of Nursing
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    • v.35 no.3
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    • pp.546-554
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    • 2005
  • Purpose: This study was a systematic review and meta-analysis of the effects of exercise programs in patients with type II diabetes mellitus. Method: Two investigators systematically searched and reviewed English articles from PUBMED from 1988 to 2004, selecting randomized controlled trials on structured exercise programs for DM patients. Out of 87 studies identified, a meta analysis was done for eleven studies which satisfied inclusion criteria and focused on glycemic indices, lipid indices, and cardiac function indices. Results: The means and standard deviations were compared for experimental groups that received exercise-only or exercise and diet programs and control groups that received no intervention or only diet education. The groups were considered homogeneous as the p value of the Q score in each variable group was over 0.05. The experimental groups demonstrated a moderate positive effect on HbA,c and $VO_{2max}$ (d=0.55 & 0.5), and a small positive effect on fasting blood glucose and cholesterol (d=0.38 & 0.27) compared to the control groups. HDL and LDL cholesterol levels, however, showed a very low positive effect (d=0.11 & 0.12) in the experimental groups. Aerobic exercise was more beneficial than resistance exercise on $HbA_1c$ (d=0.59 vs 0.28) in the groups. Conclusions: Regular exercise has a positive effect on $HbA_1c$, fasting blood glucose, total cholesterol, HDL cholesterol, LDL cholesterol, and $VO_{2max}$ in Type 2 diabetic patients.

The Effects of Planned Exercise Program on Metabolism, Cardiopulmonary Function and Exercise Compliance in Type 2 Diabetes Mellitus Patients (계획된 운동프로그램이 제 2형 당뇨병 환자의 대사, 심폐기능 및 운동이행에 미치는 영향)

  • 황애란;유지수;김춘자
    • Journal of Korean Academy of Nursing
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    • v.31 no.1
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    • pp.20-30
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    • 2001
  • This study was conducted to identify the effects of a planned exercise program based on Bandura's self efficacy model on metabolism, and the exercise compliance in type 2 diabetes mellitus patients. The study design was a nonequivalent pre-test post-test control design. Thirty four type 2 diabetes mellitus patients, who received follow-up care regularly through the diabetic out-patient clinic, were randomly sampled for this study. Twenty patients were assigned to the experimental group and fourteen patients were assigned to the control group. In the experimental group, a planned exercise program is composed of an individualized exercise prescription for 12 weeks, an individual education, and even a telephone coach program. In the case of the control group, they were instructed to continue with their usual schedules. The data collection period was from March 1999 to February 2000 Data were analyzed using SPSS/WINDOW 10.0 program. The results were as follows. 1. In the experimental group, the level of fasting blood sugar has significantly decreased from 188.20 mg/㎗ to 155.55 mg/㎗ after planned exercise program (F= 16.86, p=.000). For lipid metabolism, body fat per cutaneous decreased from 27.16% to 26.57% after planned exercise program. The score of self efficacy has increased from 64.20 to 66.65 after planned exercise program and it was statistically significant (F=4.850, p=.040) The functional vital capacity has increased from 3.28$\ell$ to 3.37$\ell$and it was statistically significant(F=7.300, p=.020). 2. In an after effect of a planned exercise program, 35 percent of the subjects who participated in a planned exercise program continued to exercise for another six months. In conclusion, the planned exercise program can improve cardiopulmonary function, glucose, and lipid metabolism. This program was show a positive effect on the self efficacy and exercise compliance.

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The Effect of Protective Socks Combined with Functional Insole on Plantar Foot Pressure in Healthy Adults: A Pilot Study (정상인 대상으로 기능성 인솔과 결합한 보호형 양말이 발바닥 압력에 미치는 영향: 예비 실험 연구)

  • Jung, Do-Young
    • Journal of the Korean Society of Physical Medicine
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    • v.13 no.1
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    • pp.147-154
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    • 2018
  • PURPOSE: This study examined the ability of experimental socks combined with a functional insole to reduce plantar foot pressure in healthy subjects. METHODS: The study enrolled 15 subjects. An in-shoe measurement device was used to measure the peak plantar pressure while walking. The peak forefoot, midfoot, and hindfoot plantar pressure data were collected under two conditions: the subjects were wearing their own socks and while they were wearing the experimental socks. The paired t-test was used to determine the differences in peak plantar pressure between the two conditions at all three positions. RESULTS: Wearing the experimental socks resulted in a significantly higher peak plantar pressure in the medial forefoot and midfoot areas than wearing one's own socks (p<.05), and also in significantly lower peak plantar pressure in the medial and lateral hindfoot (p<.05). However, there were no significant differences of peak plantar pressure between experimental and own socks in middle and lateral forefoot (p>.05). CONCLUSION: The experimental socks combined with a functional insole decreased plantar pressure in the hindfoot and supported the medial longitudinal arch. However, it is necessary to change the design and material of the forefoot area in the functional insole to prevent foot ulcer at that location in people with diabetes mellitus.

Effect of irradiation on the dental pulp tissues in streptozotocin-induced diabetic rats (방사선조사가 당뇨 백서의 치수조직에 미치는 영향)

  • Kang Ho-Duk;Hwang Eui-Hwan;Lee Sang-Rae
    • Imaging Science in Dentistry
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    • v.35 no.1
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    • pp.9-14
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    • 2005
  • Purpose : To observe the histopathological changes in the pulp tissues of mandibular molars in streptozotocin-induced diabetic rats after irradiation. Materials and Methods : The male Sprague-Dawley rats weighing approximately 250 gm were divided into four groups: control, diabetes, irradiation, and diabetes-irradiation groups. Diabetes mellitus was induced in the rats by injecting streptozotocin. Rats in control and irradiation groups were injected with citrate buffer only. After 5 days, the head and neck region of the rats in irradiation and diabetes-irradiation groups were irradiated with a single absorbed dose of 10 Gy. All the rats were sacrificed at 3, 7, 14, 21, and 28 days after irradiation. The specimen including the mandibular molars were sectioned and observed using a histopathological method. Results : In the diabetes group, capillary dilatation was observed. However, there was no obvious morphologic alteration of the odontoblasts. In the irradiation group, generalized necrosis of the dental pulp tissues was observed. Vacuolation of the odontoblasts and dilatation of the capillaries were noted in the early experimental phases. In the diabetes-irradiation group, generalized degeneration of the dental pulp tissues was observed. Vacuolation of the dental pulp cells and the odontoblasts was noted in the late experimental phases. Conclusion : This experiment suggests that dilatation of the capillaries in the dental pulp tissues is induced by diabetic state, and generalized degeneration of the dental pulp tissues is induced by irradiation of the diabetic group.

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