• 제목/요약/키워드: metabolic disorder

검색결과 332건 처리시간 0.022초

Experimental model and novel therapeutic targets for non-alcoholic fatty liver disease development

  • Yujin Jin;Kyung-Sun Heo
    • The Korean Journal of Physiology and Pharmacology
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    • 제27권4호
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    • pp.299-310
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    • 2023
  • Non-alcoholic fatty liver disease (NAFLD) is a complex disorder characterized by the accumulation of fat in the liver in the absence of excessive alcohol consumption. It is one of the most common liver diseases worldwide, affecting approximately 25% of the global population. It is closely associated with obesity, type 2 diabetes, and metabolic syndrome. Moreover, NAFLD can progress to non-alcoholic steatohepatitis, which can cause liver cirrhosis, liver failure, and hepatocellular carcinoma. Currently, there are no approved drugs for the treatment of NAFLD. Therefore, the development of effective drugs is essential for NAFLD treatment. In this article, we discuss the experimental models and novel therapeutic targets for NAFLD. Additionally, we propose new strategies for the development of drugs for NAFLD.

Ginsenosides for the treatment of insulin resistance and diabetes: Therapeutic perspectives and mechanistic insights

  • Tae Hyun Kim
    • Journal of Ginseng Research
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    • 제48권3호
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    • pp.276-285
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    • 2024
  • Diabetes mellitus (DM) is a systemic disorder of energy metabolism characterized by a sustained elevation of blood glucose in conjunction with impaired insulin action in multiple peripheral tissues (i.e., insulin resistance). Although extensive research has been conducted to identify therapeutic targets for the treatment of DM, its global prevalence and associated mortailty rates are still increasing, possibly because of challenges related to long-term adherence, limited efficacy, and undesirable side effects of currently available medications, implying an urgent need to develop effective and safe pharmacotherapies for DM. Phytochemicals have recently drawn attention as novel pharmacotherapies for DM based on their clinical relevance, therapeutic efficacy, and safety. Ginsenosides, pharmacologically active ingredients primarily found in ginseng, have long been used as adjuvants to traditional medications in Asian countries and have been reported to exert promising therapeutic efficacy in various metabolic diseases, including hyperglycemia and diabetes. This review summarizes the current pharmacological effects of ginsenosides and their mechanistic insights for the treatment of insulin resistance and DM, providing comprehensive perspectives for the development of novel strategies to treat DM and related metabolic complications.

호모시스틴뇨증 동물 모델의 유전자 치료 (Recombinant Adeno-associated Virus-Mediated Gene Transfer in Homocystinuria Mice)

  • 박은숙
    • 대한유전성대사질환학회지
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    • 제5권1호
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    • pp.9-17
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    • 2005
  • Homocystinuria is a metabolic disorder caused by a deficiency of cystathionine ${\beta}$-synthase (CBS). Patients with homocystinuria show clinical symptoms such as mental retardation, lens dislocation, vascular disease with life-threatening thromboembolisms and skeletal deformities. Generally, the major treatments for CBS deficiency include pharmacologic doses of pyridoxine or dietary restriction of methionine. However, there is no effective treatment for this disease up till today and gene therapy can be an attractive novel approach to treatment of the disease. We investigated whether a recombinant adeno-associated virus could be used as a CBS gene transfer vector to reduce the excessive homocysteine level in the homocystinuria mouse model. Recombinant adeno-associated virus vector encoding the human CBS gene (rAAV-hCBS), driven by EF1-a promoter, was infused into CBS-deficient mice ($CBS^{-/-}$) via intramuscular (IM) and intraperitoneal (IP) injection. IP injection was more efficient than IM injection for prolongation of lives and reduction of plasma homocysteine levels. After 2 weeks of gene transfer by IP injection, serum homocysteine level was significantly decreased in treated mice compared with the age-matched controls and the life span was extended about 1.5 times. Also, increased expression of CBS gene was observed by immunohistochemical staining in livers of treated $CBS^{-/-}$ mice and microvesicular lipid droplets was decreased in cytoplasm of liver. These results demonstrate the possibility and efficacy of gene therapy by AAV gene transfer in homocystinuria mice.

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Cardiometabolic Effects of Obstructive Sleep Apnea and Treatment Effects of Oral Appliance: An Updated Review for Dentists

  • Kim, Hye-Kyoung;Kim, Mee-Eun
    • Journal of Oral Medicine and Pain
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    • 제43권3호
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    • pp.61-69
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    • 2018
  • Obstructive sleep apnea (OSA) is a relatively common, but greatly underdiagnosed sleep-related breathing disorder, characterized by recurrent collapse of the upper airway during sleep. OSA has been associated with a variety of cardiometabolic disease, such as hypertension, coronary artery disease, cardiac arrhythmia, cerebrovascular disease and metabolic dysfunction. Neurocognitive impairment, including excessive daytime sleepiness, increased risk of motor vehicle accidents, is also related to OSA. Sleep fragmentation and related arousals during sleep lead to intermittent hypoxia, sympathetic activation, oxidative stress, systemic inflammation and metabolic dysregulation which provide biological plausibility to this pathologic mechanism. Extensive studies demonstrated that OSA is a modifiable risk factor for the above mentioned diseases and oral appliances (OAs), although continuous positive air pressure (CPAP) is a first-line therapy of OSA, are not inferior to CPAP at least in mild OSA, and may be an alternative to CPAP in CPAP-intolerant subjects with OSA. The goal of this article is to provide a current knowledge of pathologic link between OSA and cardiovascular disease, focusing on intermittent hypoxia, sympathetic activation, oxidative stress and metabolic dysregulation. Then, previous epidemiologic studies will be reviewed to understand the causal relationship between OSA and cardiovascular disease. Finally, the effects of OAs will be updated via recent metaanalyses compared to CPAP.

새로운 GALT 유전자의 돌연변이에 의한 갈락토스혈증 (A Case of Galactosemia with Novel Mutation in the GALT Gene)

  • 김신아;신영림;홍용희
    • 대한유전성대사질환학회지
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    • 제13권2호
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    • pp.126-130
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    • 2013
  • Galactosemia is a metabolic disorder inherited by the recessive autosome, and appears by the deficiency of one enzyme out of GALT (Galactose-1-Phosphate Uridyltransferase), GALK (galactokinase), and GALE (epimerase) enzymes, among which the GALT deficiency disease is denominated as classical galactosemia and known to have symptoms such as severe nausea, jaundice, hepatomegaly, sucking difficulty and so on. We report the case of a 16-day-old female baby with the new p.A101D mutation together with p.N413d in the GALT gene analysis found in the neonatal screening test and diagnosed to have galactosemia by the GALT deficiency through the enzyme analysis. For the prognosis prediction, the treatment, the genetic counseling and the prenatal diagnosis of the patients, more detailed genetic diagnosis is required by performing GALT gene analysis, and it is deemed to be necessary to analyze the correlation between the phenotype and the genotype of the domestic galactosemia patients.

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환자를 살피기 전에 보아야 하는 "입형정기(立形定氣)"에 대한 고찰 (Study on Judgment of Body Form and Settle Energy Flow before Diagnose the Patients)

  • 고흥
    • 동의생리병리학회지
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    • 제27권5호
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    • pp.509-519
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    • 2013
  • Through the study on judgment of Body form and settle Energy flow(立形定氣) before diagnose the patients, the results are as follows. The observation of the body form is to determine prosperity and deficiency of each internal organ. It is necessary to distinguish Body form loss(形脫) and Body form fullness(形充). Fat man(肥人), Thin man(瘦人), Creamy man(膏人), Muscular man(肉人), Small Fat man(脂人) are discriminated by fat distribution, fat content, and muscle mass. The observation of the body form means the observation of structure disorder, color change, develop part at body, head and face. The observation of the body form that is to determine prosperity and deficiency of each internal organ is from the limited knowledge of the anatomy. The observation of face color is considered by blood perfusion, blood oxygenation and accumulation of carotinoid, bilirubin and change of melanin in the facial skin. The prosperity and the deficiency of energy flow is considered by symptom combined with growth (<40 years) and aging (>40 years). The prosperity of energy flow includes the anger, anxious emotion and the deficiency of energy flow includes the fear, depressive emotion. The breathing type is expiratory exhalation like asthma patients in the prosperity of energy flow. The deficiency of energy flow is weakness to overcome the disease. The prosperity and the deficiency of energy flow are considered by body metabolic ratios (Basal metabolic Rate: BMR, Resting metabolic rate: RMR, Physical activity ratios: PASs). Development of subcutaneous fat is good in the person of prosperous energy flow. The person of prosperous energy flow is hard to overcome to heat weather than cold weather. The person of deficiency of energy flow has tendencies of low blood pressure, insufficiency of blood flow in the peripheral and being shocked. The person of deficiency of energy flow has tendencies of chronic fatigue syndrome or automatic nerve disorder. If the patient who has deficiency of energy flow has severe weight loss should be checked for the presence of disease. The observation of small and large of bone is to check the development and disorder of bone growth and aging. The observation of thickness and weakness of muscle is to check the development of muscle, particularly biceps, gastrocnemius, and rectus abdominal muscle. The observation of thickness and weakness of skin is to check the ability of regulating body temperature by sweating.

흰쥐 급성 대사성 알칼리증과 호흡성 알칼리증 모델에서 혈액 전해질 및 대사산물 (Blood Electrolytes and Metabolites in Rat Model of Acute Metabolic and Respiratory Alkalosis)

  • 김상진;이문영;김진상;강형섭
    • 한국임상수의학회지
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    • 제27권3호
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    • pp.257-261
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    • 2010
  • 산염기 불균형과 수반되는 치료과정에서 혈액 이온들은 변동되어 질 수 있다. 생리적 그리고 생물학적 활성을 가진 순환 이온화 $Mg^{2+}$ 측정이 수의 임상분야에도 적용되고 있다. 실험동물모델에서 급성 대사성 알칼리증 및 호흡성 알칼리증에 수반하는 혈액 이온화 $Mg^{2+}$ 변동을 관찰하였다. 대사성 알칼리증은 $NaHCO_3$ 정맥투여로 그리고 호흡성 알칼리증은 과호흡에 의해 유도하였다. 혈액 이온화 $Mg^{2+}$$NaHCO_3$에 의해 유도된 대사성 알칼리증에서는 가역적인 감소를 보인 반면, 과호흡에 의해 유도된 호흡성 알칼리증에서는 비가역적인 증가를 보였다. 따라서 산염기 불균형 치료에 있어 혈액 이온화 $Mg^{2+}$의 잠재적 변동 가능성을 고려하여야 한다고 판단된다.

경막하 혈종에 의한 경련이 동반된 Bartter 증후군 1례 (A Case of Bartter's Syndrome with a Seizure Disorder Associated with Subdural Hematoma)

  • 이재준;문한구;박용훈
    • Journal of Yeungnam Medical Science
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    • 제11권2호
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    • pp.388-397
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    • 1994
  • 심한 저칼륨혈증, 대사성 알카리혈증과 성장 장애를 가져오는 대표적인 질환인 Bartter 증후군 환아가 경막하 혈종에 의한 경련이 동반되어, 선생검으로 본 질환을 확진하고, 근치적 치료로 양호한 반응을 나타내었던 1례를 문헌 고찰과 아울러 보고 하는 바이다.

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한의학적 진단 방법으로서의 모발미네랄검사에 대한 고찰 (The Study of HTMA(Hair Tissue Mineral Analysis) as a Diagnostic Method of Oriental Medicine)

  • 송윤경;임형호;신현택;최승범
    • 한방비만학회지
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    • 제6권1호
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    • pp.11-26
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    • 2006
  • Hair tissue mineral analysis is widely accepted for assessing essential and toxic elements which can give information about disease, metabolic disorder, nutritional imbalance, drug abuse, environmental exposure and so on. In Oriental Medicine, hair have been used as a diagnostic method which reflects the physiological and pathological status of body, especially kidney system(腎臟) and blood(血) like the quotations from Donguibogam(東醫寶鑑), 'hair belongs to kidney system(髮屬腎)' and 'hair is the remainder of blood(髮者血之餘)' Therefore we have suggested that HTMA have possibility to be utilized for screening and treatment for obesity, growth disorder, general deficiency syndrome(諸虛證), etc. in Oriental Medicine.

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