• 생명과학회지
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• 제20권11호
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• pp.1569-1576
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• 2010

White-skinned sweet potato (WSSP, Ipomoea batatas L.)는 인도네시아 및 다른 나라 등에서 전통약제로 당뇨병 치료에 널리 사용되고 있다. 본 실험에서는 흰 쥐를 streptozotocin (45 mg/kg체중, i.p.)으로 당뇨병을 유발시킨 후 WSSP의 메탄올 추출물을 체중 1 kg당 Dose 100; 200 mg/kg을 경구로 투여하였다. 산화적 스트레스에 대한 보호효과를 평가하였고 그 효능을 인슐린 분비촉진제인 glimepiride (50 mg/kg 체중)와 비교해 보았다. 산화적 스트레스 평가는 WSP 메탄올 추출물과 glimepiride를 2주 투여 한 후 간장조직의 지질 과산화물(LPO)함량, 혈청 AST, ALT, total triglyceride (TG), total cholesterol (TC), 그리고 항산화효소들인 superoxide dismutase (SOD), 카탈라아제(CAT), 글루타치온 과산화물 분해효소(GPx), 글루타치온 S-전이효소(GST)활성도 등을 간장에서 측정하여 시행하였다. 당뇨 흰쥐에서 혈당, LPO 함량, AST, ALT, TG, TC 함량 등은 정상군에 비하여 그 값이 증가하였고, SOD, CAT, GPx, GST 활성도 값은 감소하였다. 당뇨 흰쥐에 WSSP 메탄올 추출물(200 mg/kg)을 2주일 동안 투여한 결과 의미있는 혈당 감소를 볼 수 있었고, LPO, TG, TC, AST, ALT 함량에서도 개선효과를 볼 수 있었다. 또한 SOD, GPx, 그리고 CAT등 항산화효소들의 활성도 증가도 나타났다. 따라서 WSSP 메탄올 추출물은 당뇨쥐의 혈당을 낮추어 산화적 스트레스를 약화시키고 당뇨로 유발된 손상을 보호해 주는 효과가 있다는 결과를 얻었다.

• 대한약리학회지
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• 제7권1호
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• pp.53-65
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• 1971

It is well known that diabetes mellitus is associated with metabolic derangements, such as hyper-glycemia, ketosis, glycosuria, and also widespread alterations in the blood vessels, kidneys, eyes, peripheral nerves and heart. It is also recognized that healing of skin wound is delayed in diabetics. In bone, according to Aegerter, osteopenia develops in diabetes mellitus and it is chiefly ascribed to overutilization of protein. Shim claims that total blood flow to the entire skeletal system is approximately 4 to 8 percent of resting cardiac output and blood supply to the skeletal system would be decreased on account of secondary arteriosclerotic changes in the diabetics. An adequate blood supply is an essential factor in the healing process of fracture, and disturbed blood flow, either local or systemic, will invariably delay union of the fragments or the fragments from being fused. As the author has encountered several cases of diabetics in whom healing of fracture was delayed or incomplete, this experimental study was undertaken to elucidate the effects of hyperglycemia and diabetes mellitus on the healing process of fracture. In this experiment adult albino rabbits, weighing about 2 kg. were used and divided into 6 groups. The femur of each animal was fractured surgically, and then the healing process of fracture was periodically checked by radiography at an interval of one week for a period of 6 weeks. Thereafter, all the rabbits were killed to obtain tissue preparation of the femur. The experimental groups were as follows; 1) Control group: Six rabbits sustained a surgical fracture to the femur, without being given any other treatment or drug. 2) Alloxan-treated group: For inducing diabetes, alloxan was given intravenously to 17 rabbits in various dose as follows; to 7 of them 40 mg/kg, to 6 rabbits 80 mg/kg and to 4 rabbits 120 mg/kg of body weight, respectively. 3) Insulin-treated group: Protamine-zinc insulin was injected subcutaneously to each of 6 rabbits in a daily dose of 1 unit per kilogram of body weight. 4) Group treated with insulin after alloxan: Four rabbits were given 80 mg of alloxan once and than 1 unit of insulin per kilogram of body weight daily. Another 5 rabbits were injected 1 unit of insulin per kg of body weight daily following administration of alloxan in a dose of 120 mg/kg. 5) Homotransplantation group: Following intravenous injection of alloxan in a dose of 120 mg/kg, 10 rabbits underwent homotransplantation of a short bone segment to the femur. Five of them were subsequently given 1 unit/kg of insulin daily. 6) Sugar-treated group: six rabbits were fed $15{\sim}20$ gm of sugar daily throughout the period of experiment. The results obtained are summarized as follows; 1. Blood sugar level and damage to the pancreatic islet increased proportionately when alloxan was given to the rabbits in various doses. No appreciable change could be observed in the islets when the blood sugar level was altered by either oral administration of sugar or subcutaneous injection of insulin. 2. Comparing with the control group, healing of fracture was delayed in the alloxan-treated group, while callus formation and periosteal reaction were shown to be more prominent in this group and subsequently, the ultimate osseous tissue formed at the fracture site was significantly smaller in amount and less compact. These findings were more marked as the amount of alloxan increased. 3. Administration of insulin prevented the delay in healing process of fracture in the rabbits with alloxan-induced hyperglycemia. In this case, the course and progression of fracture healing were almost similar to those of control group. 4. Union between the host bone and the fragment transplanted from other rabbit of the same species was more delayed in the group treated with alloxan alone than in the group to which insulin was administered after development of alloxan-induced diabetes. In both groups periosteal new bone developed from the ends of the host bone, above and below the transplanted fragment, and directly fused with failure of periosteal callus to bridge the adjacent ends of the host bone and the transplanted fragment. 5. The healing process of fracture was not inhibited by alteration in blood sugar level when the blood sugar was abnormally increased by excessive sugar intake or lowered by administration of insulin alone. The healing of fracture in these groups progressed similarly as in the control group. In brief summary, it appears that the healing process of fracture would be definitely disturbed in diabetic state brought about by damage to the pancreatic islet. As such an inhibition could be overcome with insulin, it seems that insulin plays an important role in healing of fracture, but alteration in blood sugar level alone does not modify healing process of fracture to significant degree.

• 대한약침학회지
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• 제16권3호
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• pp.23-29
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• 2013

Objectives: Dyslipidemia in diabetes mellitus is a significant risk factor for the development of cardiovascular complications. The aim of this study was to evaluate the effect of the ethyl-acetate fraction of an ethanolic extract from Streospermum suaveolens on lipid metabolism in streptozotocin (STZ)-induced diabetic rats. Methods: Diabetes was induced by intraperitonial injection of STZ (50 mg/kg). Diabetic rats were treated with an ethyl-acetate fraction orally at doses of 200 and 400 mg/kg daily for 14 days. On the $15^{th}$ day, serum lipid profiles, such as total cholesterol (TC), triglycerides (TG), low-density lipoprotein (LDL), and high-density lipoprotein (HDL), were estimated in experimental rats. The atherogenic (AI) and the coronary risk (CRI) indices were also evaluated. Results: The ethyl-acetate fraction at doses of 200 and 400 mg/kg significantly (P < 0.001) and dose-dependently reduced serum cholesterol, triglycerides and LDL, but increased HDL towards near normal levels as compared to diabetic control rats. The fraction also significantly (P < 0.001) lowered the atherogenic index (AI) and coronary risk index (CAI) in a dose-dependent manner. Conclusion: The present study demonstrated that the ethyl-acetate fraction of Stereospermum suaveolens exhibits a potent antihyperlipidemic activity in hyperglycemic rats and suggests that the plant may have therapeutic value in treating the diabetic complication of hyperlipidemia.

• 대한간호학회지
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• 제35권5호
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• pp.924-930
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• 2005

Purpose: The purpose of this study was to evaluate the effect of web-based diabetic education on plasma glucose and serum lipids in obese people with diabetes. Method: A random allocation design with control and experimental groups being assessed pre- and post-intervention was used. Eighteen patients were randomly allocated to an intervention group and 16 to a control group. Participants were requested to input their blood glucose levels weekly for 3 months at http://www.biodang.com by cellular phone or wire Internet. The researcher sentoptimal recommendations to each patient weekly for 3 months using a short message service (SMS) of the cellular phone and wire Internet. Results: Patients in the intervention group had a mean decrease of $1.2\%$ in glycosylated haemoglobin ($HbA_{1}c$) levels and those in the control group had no difference in HbA1c levels. There was a significant mean change in 2-hour post prandial blood glucose (2HPPG) for the intervention group, with a mean change of -120.1 mg/dl. The mean change in the control group, however, was not significant. Conclusion: These findings indicate that this web-based intervention using SMS of the cellular phone for 3 months improved $HbA_{1}c$ and 2HPPG, but did not affect total cholesterol, triglyceride, and high density lipoprotein cholesterol in obese type 2 diabetic patient.

• 한국식품영양과학회지
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• 제30권3호
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• pp.521-527
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• 2001

The effects of dietary restriction (DR) on antioxidant enzymes were studied in liver, lung and erythrocytes of diabetic rats. Experimental animals used Sprague-Dawley (SD; body weight 350$\pm$20g) male rats and Otsuka Long Evans Tokushima fatty (OLETE; body weight 5--$\pm$30g) male rats, as a model of type 2 diabetes mellitus. Type I diabetes was induced in SD rats by intramuscular injection of alloxan (80 mg/kg BW). Animals were randomly assigned either to continue the ad libitum diet or 40% DR (60% intake of ad libitum diet) groups. The body weight was measured at every 2 weeks to 4 months following DR. The activities of antioxidant enzymes (superoxide dismutase (SOD), catalase, glutathione peroxidase (GSHPx) were measured in liver, lung and erythrocytes and the concentration of TBARS as a marker of reactive oxygen species-induced tissue injry was also measured in rats after 4 months 40% DR. The body weight 4 months after 40% DR of control SD, alloxian-diabetid SD and OLETE rats were 80%, 98% and 75% of each control groups, respectively. The activities of SOD, catalase and GSHPx in lung and erythrocytes of rats were not change by 40% DR but in 4 month 40% DR rat liver, the activities of SOD and catalase were increased in control SD, alloxan-diabetic SD, and OLETF groups. The concentration of TBARS in lung and erythrocytes was also not changed by 40% DR, while liver TBARS concentration was decreased in OLETF and control SD rats compared to each non-DR control rats. These results suggested that the body weight changes in diabetic rats by DR was more prominent in type 2 diabetes and changes of antioxidant enzymes is most prominent in liver by DR either type 1 and 2 diabetic rats.

• 한국식생활문화학회지
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• 제33권3호
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• pp.291-298
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• 2018

This study examined the effects of plums produced in Gimcheon area on the glucose and lipid metabolism in streptozotocin-induced diabetic rats. Male Sprague-Dawley diabetic rats were divided into four groups: control, diabetic control, Diabetes-low plum (containing 10% plum powder), and Diabetes-high plum (containing 20% plum powder). The animals were fed isocaloric experimental diets based on an AIN-76 diet for 6 weeks. Feed efficiency ratio (FER) of the diabetic groups were significantly lower than that of the control. On the other hand, among the diabetic groups, the FER of the high plum intake group was higher than that of the diabetic control. The liver weight per 100 g body weight of each group was similar but the liver weights tended to decrease as the amount of plum intake was increased. Kidney weight per 100 g body weight of the plum intake groups were significantly different compared to that of the diabetic control. The supplementation of plums lowered the fasting blood glucose level of the diabetic groups and improved the glucose tolerance, thereby lowering the glycosylated hemoglobin index. In addition, the supplementation of plum was lowered the blood total cholesterol concentration and increased the HDL-C/TC (%) significantly, thereby lowering the atherosclerotic index (AI) and hepatic peroxide level. A steady diet of plums produced in Gimcheon may be effective in controlling the blood glucose level and preventing chronic diabetes mellitus.

• 지역사회간호학회지
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• 제30권4호
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• pp.560-570
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• 2019

Purpose: The purpose of this study was to examine the effects of diabetic foot care education for the older adults with low health literacy. Methods: A quasi-experimental design with a non-equivalent control group pretest-posttest was used. The participants who were diagnosed with diabetes, were adults over 65 years old at the welfare center of Y and B city. They were divided into the experimental group (n=32) and the control group (n=31). Inclusion criteria were a score of 5 or under on the Short form of Korean Functional Health Literacy Test and 24 or more on the Korean version of Mini-Mental State Examination. Foot care education was conducted in a small group for 40 minutes, once a week, for three weeks. The education materials are composed of an easy term, picture and photographs to understand easily. Results: The scores of diabetic foot care knowledge (t=4.57, p<.001), foot care self-efficacy (t=6.07, p<.001), and foot self-care behavior (t=4.18, p<.001) were significantly increased in the experimental group compared to the control group. Foot health status was not significantly improved. Conclusion: The findings indicate that this education program can be used as a nursing intervention improving foot care knowledge, foot care self-efficacy, and foot self-care behavior in order to prevent the diabetic foot problems of elderly diabetic persons with low health literacy.

• Journal of Chest Surgery
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• 제34권7호
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• pp.515-523
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• 2001

배경: 당뇨병 환자에서 사망률과 이환률의 원인은 70%이상 혈관계의 합병증에 기인한다. 이러한 합병증은 혈관 내피세포 이완 작용 이상과 연관되어 있으며 이는 oxygen free radical의 직접적인 독성으로 추정되어 본 연구는 당뇨를 유발시킨 백서 복부 대동맥 운동성에 대한 Vit C의 보호효과를 연구 목적으로 한다. 대상 및 방법: 백서 60마리를 실험군(n=33)과 대조군(n=27)으로 나누고 실험 군은 streptozotocin을 투여하여 당뇨를 유발시켰다. 각각 실험 군과 대조군을 ascorbic acid를 투여한 군과 투여하지 않은 군으로 세분한 후 ascorbic acid투여 직후, 6주, 9주, 12주후의 복부 대동맥 혈관근육의 운동성을 측정하였다. 결과: 대조군의 경우 6주째 복부 대동맥 절편에서 acetylcholine투여 후 정상적인 이완반응이 나타났으나 실험군의 경우 현저히 저하됨이 관찰되었다. 9, 12주 째 절편에서는 실험군 중 ascorbic acid투여군에서 acetylcholine에 의한 이완반응이 거의 대조군에서의 결과와 일치할 정도로 회복되었다. 결론: 이상의 결과로 당뇨병을 유발한 백서에서 내피세포 의존적인 장애가 나타남을 확인할 수 있었으며 이러한 장애는 ascorbic acid의 투여로 회복됨을 알 수 있었으며 그 효과는 항산화 작용에서 비롯된 것으로 생각되므로 ascorbic acid가 당뇨환자의 혈관성 질환에 대해 보호적 효과를 보일 수 있을 것으로 사료된다.

• 동아시아식생활학회지
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• 제23권6호
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• pp.704-712
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• 2013

This study was designed to examine the effects of bitter melon (BM) on the plasma blood glucose and cholesterol levels in diabetic rats. Diabetes mellitus was induced in male Sprague-Dawley rats through an injection of streptozotocin (STZ) dissolved in a citrate buffer into the tail vein at a dose of 45 mg/kg of body weight. Sprague-Dawley rats were then fed for four weeks, with the experimental groups receiving a modified diet containing 5% or 10% powder derived from BM. The experimental groups were divided into 4 groups, consisting of the normal control group, STZ-control group and diabetic fed with BM 5% & 10% treated groups. The rats' body weight, blood glucose and cholesterol values were measured along with the hematocrit (Hct) values and aminotransferase activities. Body weight losses were observed in the diabetic groups, whereas the control rats gained weight. There were significant differences in kidney weight between the control group and the diabetic groups. The Hct levels of the diabetic BM-treated group were significantly higher than the STZ-control group. Aspartate aminotransferase activity was lower in the non-diabetic group compared to the diabetic experimental groups. Further, the blood glucose was significantly decreased in the 5% & 10% BM of the diabetic group. There were no significant difference in cholesterol levels among the diabetic groups. These results indicate that the supplementation of bitter melon may have a favorable influence on reducing the blood glucose level in STZ-induced diabetic rats.

• 대한치과의사협회지
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• 제22권9호통권184호
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• pp.771-780
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• 1984

To observe the healing process of the gingival wound in diabetic condition, the author induced diabetes mellitus by intravascular injection of streptozotocin in rat tail vein and made fresh wound in rat mandibular posterior gingiva using scalpel. The healing processes of gingival wound were examined periodically by light microscopy. The results were as follows. 1) The healing was completed at second week in control group, but it delayed until fourth week in experimental group and the organization was persisted for first two weeks. 2) The inflamed gingiva of dibetic rat demonstrated scanty polymorphonuclear lerkocytic infiltration at the early stage of experiment, but it soon became numerous as in cotrol group and the lymphocytic infiltrations were same degree as in control group. 3) The tissue destruction was broader in the experimental group than in the control group. The epithelization was began at the early stage of healing and the epithelial attachment was reformed with the completion of the wound healing. 4) Loss of Sharpey's fibers and destruction of cementum and alveolar bone were observed with the inflammatroy reaction, but these were reformed with the completion of the wound healing.