• 제목/요약/키워드: Diabetic retinopathy

검색결과 85건 처리시간 0.024초

한국 약용식물 추출물의 알도즈 환원 효소 억제 효능 검색(IX) (Screening of Korean Herbal Medicines with Inhibitory Effect on Aldose Reductase (IX))

  • 최소진;김영숙;김주환;김진숙
    • 생약학회지
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    • 제45권4호
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    • pp.354-358
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    • 2014
  • Aldose reductase (AR) has been demonstrated to play important role in the development of the diabetic complications such as diabetic retinopathy, diabetic neuropathy and diabetic nephropathy. To discover novel treatments for diabetic complications from natural sources, 69 Korean herbal medicines have been investigated for inhibitory activities on AR. Among them, 7 herbal medicines, Eleutherococcus sessiliflorus (stems), Artemisia japonica (whole plants), Wisteria floribunda (leaves), Eurya japonica (stems, twigs and leaves, leaves), Ampelopsis brevipedunculata (stems) exhibited a significant inhibitory activity compared with 3,3-tetramethyleneglutaric acid as positive control.

Comparative co-expression analysis of RNA-Seq transcriptome revealing key genes, miRNA and transcription factor in distinct metabolic pathways in diabetic nerve, eye, and kidney disease

  • Asmy, Veerankutty Subaida Shafna;Natarajan, Jeyakumar
    • Genomics & Informatics
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    • 제20권3호
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    • pp.26.1-26.19
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    • 2022
  • Diabetes and its related complications are associated with long term damage and failure of various organ systems. The microvascular complications of diabetes considered in this study are diabetic retinopathy, diabetic neuropathy, and diabetic nephropathy. The aim is to identify the weighted co-expressed and differentially expressed genes (DEGs), major pathways, and their miRNA, transcription factors (TFs) and drugs interacting in all the three conditions. The primary goal is to identify vital DEGs in all the three conditions. The overlapped five genes (AKT1, NFKB1, MAPK3, PDPK1, and TNF) from the DEGs and the co-expressed genes were defined as key genes, which differentially expressed in all the three cases. Then the protein-protein interaction network and gene set linkage analysis (GSLA) of key genes was performed. GSLA, gene ontology, and pathway enrichment analysis of the key genes elucidates nine major pathways in diabetes. Subsequently, we constructed the miRNA-gene and transcription factor-gene regulatory network of the five gene of interest in the nine major pathways were studied. hsa-mir-34a-5p, a major miRNA that interacted with all the five genes. RELA, FOXO3, PDX1, and SREBF1 were the TFs interacting with the major five gene of interest. Finally, drug-gene interaction network elucidates five potential drugs to treat the genes of interest. This research reveals biomarker genes, miRNA, TFs, and therapeutic drugs in the key signaling pathways, which may help us, understand the processes of all three secondary microvascular problems and aid in disease detection and management.

In Vitro Culture of Endothelial Cell and Smooth Muscle Cell for Studying Vascular Diseases

  • Kim, Joo-Young
    • Journal of Yeungnam Medical Science
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    • 제27권2호
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    • pp.91-97
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    • 2010
  • 암세포의 전이, 죽상경화증, 당뇨성 망막병증과 같은 병적인 과정에서 혈관내피세포는 핵심적인 역할을 담당한다. 죽상경화증의 죽종 형성에 혈관민무늬근육세포가 직접적으로 관여한다. 배꼽정맥, 혈관내벽, 그리고 망막에 있는 이들 내피세포들은 다양한 효소용액들을 이용하여 얻는다. 순수하게 분리된 이들 세포는 내피세포와 관련된 질병의 시험관 내 연구에 있어 중요한 모델이다. 이러한 관점에서 볼 때 대동맥 벽의 중간막에서 분리한 후 배양한 민무늬근육세포도 죽상경화증의 발병을 설명할 수 있다. 이 종설에서는 사람배꼽정맥내피세포(HUVEC),대동맥의 내피세포 및 민무늬근육세포, 그리고 망막미세혈관내피세포(RMEC)의 분리 뿐 만 아니라 이들 세포를 이용한 질병연구에 관한 논문들을 소개하고자 한다.

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Therapy of Diabetes Mellitus Using Experimental Animal Models

  • Min, T.S.;Park, Soo Hyun
    • Asian-Australasian Journal of Animal Sciences
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    • 제23권5호
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    • pp.672-679
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    • 2010
  • Diabetes mellitus is a worldwide epidemic with high mortality. As concern over this disease rises, the number and value of research grants awarded by the National Research Foundation of Korea (NRF) have increased. Diabetes mellitus is classified into two groups. Type 1 diabetes requires insulin treatment, whereas type 2 diabetes, which is characterized by insulin resistance, can be treated using a variety of therapeutic approaches. Hyperglycemia is thought to be a primary factor in the onset of diabetes, although hyperlipidemia also plays a role. The major organs active in the regulation of blood glucose are the pancreas, liver, skeletal muscle, adipose tissue, intestine, and kidney. Diabetic complications are generally classified as macrovascular (e.g., stroke and heart disease) or microvascular (i.e., diabetic neuropathy, nephropathy, and retinopathy). Several animal models of diabetes have been used to develop oral therapeutic agents, including sulfonylureas, biguanides, thiazolidinediones, acarbose, and miglitol, for both type 1 and type 2 diseases. This review provides an overview of diabetes mellitus, describes oral therapeutic agents for diabetes and their targets, and discusses new developments in diabetic drug research.

당뇨병성 족부 합병증에 따른 하지 절단술의 위험 인자에 대한 분석 (Analysis of the Risk Factors for Lower Extremity Amputation due to Diabetic Foot Complications)

  • 정홍근;김유진;심상호;김희진
    • 대한족부족관절학회지
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    • 제11권2호
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    • pp.149-153
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    • 2007
  • Purpose: To evaluate the possible risk factors of lower extremity amputations in diabetic foot patients. Materials and Methods: The study is based on 37 patients who received lower extremity amputations from April, 1997 to February 2005 due to diabetic foot complications with at least 1 year follow up. As for the control group, 49 diabetes patients who had been treated at the endocrinology department for at least 1 year without any diabetic foot complication were evaluated. As for the possible risk factors, age, gender, duration of diabetes mellitus, body mass index, Hb A1c, blood glucose level, total cholesterol, s-creatinine, C-peptide, smoking, alcohol, hypertension, cardiovascular disease, CVA, retinopathy and neuropathy were investigated. Results: Among the possible risk factors evaluated, age, Hb A1c, smoking, neuropathy and blood glucose level factors showed statistically significant difference between the diabetic amputation and the control group. Conclusion: In reducing the risk of the lower extremity amputations in the diabetic patients due to diabetic foot complications, strict control of blood glucose level and cessation of smoking were found to be utmost important.

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A novel therapeutic approach of Hachimi-jio-gan to diabetes and its complications

  • Yokozawa, Takako;Yamabe, Noriko;Cho, Eun-Ju
    • Advances in Traditional Medicine
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    • 제5권2호
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    • pp.75-91
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    • 2005
  • Great efforts have been made to improve both the quality of life and life expectancy of diabetes by treating problems associated with chronic complications such as neuropathy, retinopathy and nephropathy. In particular, diabetes is an increased risk of developing several types of kidney disease, and the predominant cause of end-stage renal disease in patients with this disorder is diabetic nephropathy. Therefore, prevention of the occurrence and progression of diabetes and its complications has become a very important issue. The scientific observations of an animal model of streptozotocin-induced diabetes, spontaneously occurring diabetes and diabetic nephropathy in this study suggest that one of the Kampo prescriptions, Hachimi-jio-gan comprising eight constituents, is a novel therapeutic agent.

유리체절제술과 수정체유화술 동시 수술 시 백내장수술 후 앞방내 에피네프린 주입과 동공 확대 (Intracameral Epinephrine Injection after Phacoemulsification on Pupil Dilation during Phacovitrectomy for Proliferative Diabetic Retinopathy)

  • 김상범;박종엽;신재령;이승우
    • 대한안과학회지
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    • 제59권12호
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    • pp.1137-1141
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    • 2018
  • 목적: 증식당뇨망막병증에서 유리체절제술과 수정체유화술을 동시에 시행한 경우 백내장수술 후 에피네프린 앞방내 주사가 동공 확대에 미치는 영향에 대해 알아보고자 하였다. 대상과 방법: 증식당뇨망막병증에서 유리체절제술과 수정체유화술을 동시에 시행한 96명(96안)에서 백내장수술 후 0.001% 에프네프린을 앞방내 주사를 한 군(주사군, 46안)과 하지 않은 군(대조군, 50안)에서 수술 전, 백내장수술 후, 유리체절제술이 끝난 후 동공 크기를 비교하였다. 동공 크기는, 저장된 수술 동영상에서 Image J 프로그램(National Institute of Health, Bethesda, MD, USA)을 이용하여 동공면적과 각막면적의 비를 구하여 수술 전-백내장수술 후의 동공 크기의 변화와 백내장수술 후-유리체절제술 후의 동공의 크기 변화를 비교하였다. 결과: 주사 군에서 수술 전 동공/각막면적의 비는 $0.52{\pm}0.11$, 백내장수술 후에는 $0.43{\pm}0.12$, 유리체절제술 후에는 $0.51{\pm}0.11$로 통계학적으로 유의한 동공 크기 변화를 관찰할 수 있었다(p<0.001, p<0.001). 대조군에서 수술 전 동공/각막면적의 비는 $0.52{\pm}0.10$, 백내장수술 후에는 $0.39{\pm}0.15$, 유리체절제술 후에는 $0.43{\pm}0.15$였다. 대조군에서는 백내장수술 후에는 동공 크기가 유의하게 차이가 났으나(p=0.011), 유리체절제술 후에는 유의한 동공 크기의 차이를 관찰할 수가 없었다(p=0.056). 결론: 에피네프린 앞방내 주사는 증식당뇨망막병증 환자에서 유리체절제술과 초음파유화술 병합 수술 시 백내장수술 후 동공을 다시 빠르게 산동시킬 수 있는 간단한 처치 방법으로 생각된다.

일개 농촌지역 저소득층 당뇨병환자의 관리 상태 (Management of Diabetic Mellitus in Low-income Rural Patients)

  • 김혜연;윤우준;신민호;권순석;안혜란;최성우;이영훈;조동혁;이정애
    • Journal of Preventive Medicine and Public Health
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    • 제42권5호
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    • pp.315-322
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    • 2009
  • Objectives : Knowledge about the management status of diabetic melitus (DM) is essential to improve diabetic management. Moreover, low income is associated with poor adherence to treatment and increased mortality. This study was performed to evaluate the management status of DM in low-income patients in a rural area. Methods : We enrolled 370 patients with type 2 DM living in Gokseong county, JeollaNamdo. A well-trained examiner measured the height, weight, waist circumference, blood pressure, total cholesterol, triglyceride, high density lipoprotein cholesterol, fasting blood sugar and glycosylated hemoglobin (HbA1c) levels. Carotid ultrasonography was used to measure carotid artery carotid artery intima media thickness (IMT) and plaque. anklebrachial index (ABI) was used to evaluate peripheral artery disease. A fundoscopic examination was performed to evaluate diabetic retinopathy. A history of diabetes complications and health-related questionnaires were also completed. Results : The age of diabetic subjects was 68.7$\pm$8.7 years and the duration of diabetes was 8.9$\pm$8.2 years. Most (63.5%) had hypertension, and 45.7% had triglycerides below 150 mg/dl, 38.1% had low density lipoprotein cholesterol (LDL) cholesterol below 100 mg/dl, 48.7% had urine albumin to creatinine ratio (UACR) below 30 mg/g. Less than half (45.9%) achieved the goal of HbA1c less than 7% suggested by the American Diabetes Association (ADA). 10.6% had peripheral vascular disease, 11.9% had retinopathy, and 60.8% had chronic kidney disease. Conclusions : DM management in low income patients is very poor and requires further work to improve.

당뇨로 인한 우측(右側 ) 족저부(足底部) 및 좌수지(左手指) 궤양(潰瘍)을 동반한 환자 치험 1 예 (A Case Study of One Patient Who Has Diabetic Gangrene in Foot and Finger Due to Diabetes)

  • 이상기;이경로;송정모
    • 사상체질의학회지
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    • 제16권3호
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    • pp.129-132
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    • 2004
  • 1. Objectives Besides Diabetes Mellitus, its complications are matter of concerns as well. Its following complications are cardiovascular disease, glomerulopathy, retinopathy, neuropathy and diabetic gangrene. These complications can cause overall damage in major organs. In traditional oriental medicine it has been perceived that gangrene is mainly caused by "hwa(火)" but under sasang constitutional medicine its has been diagnosed as Taeumin superficial-disease(太陰人 表病) and Taeumin Jowiseungchung-tang(調胃升淸湯) was prescribed. As a result, significal improvments was noted and thefore we report the outcome. 2. Methods We have given Taeumin Jowiseungchung-tang(太陰人 調胃升淸湯) to a patient for treating diabetes complications. 3. Results This patient was treated with Sasang Constitional Medicine and acupuncture for about three weeks. After treatment, ulcer and whole body edema were improved considerbly. 4. Conclusions We have dianosed the patient as Taeumin superficial-disease(太陰人 表病) by undergoing several diagnostic method used in sasang constutional medicine. Therefore we have given Taeumin Jowiseungchung-tang(太陰人 調胃升淸湯) to the patient and has obtained satisfactory results in curing several diabetic complications especially ulcer due to diabetes.

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