• Title/Summary/Keyword: cancer-prevention

검색결과 7,466건 처리시간 0.04초

The Indian Magical Herb 'Sanjeevni' (Selaginella bryopteris L.) - A Promising Anti-inflammatory Phytomedicine for the Treatment of Patients with Inflammatory Skin Diseases

  • Paswan, Shravan Kumar;Gautam, Arti;Verma, Pritt;Rao, Chandana Venkateswara;Sidhu, Om Prakash;Singh, Ajeet Pratap;Srivastava, Sajal
    • 대한약침학회지
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    • 제20권2호
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    • pp.93-99
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    • 2017
  • Objectives: Selaginella bryopteris L. (family: Selaginaceae), is often used in traditional Indian systems of medicine for the prevention and cure of several disorders and for the treatment of patient with spermatorrhoea, venereal disease, constipation, colitis, urinary tract infections, fever, epilepsy, leucorrhoea, beri-beri and cancer. It is also used as a strength tonic. This study aimed to evaluate the mechanisms underlying the anti-inflammatory effects of topically administered aqueous, polar and non-polar methanolic fractions ($10mg/20{\mu}L$) of Selaginella bryopteris. Methods: An acute oral toxicity study of Selaginella bryopteris at doses from 250 to 2,000 mg/kg body weight (bw) was performed. Aqueous, polar and non-polar methanolic extracts ($10mg/20{\mu}L$) applied topically for 5 days were evaluated for their anti-inflammatory effects against 12-tetra-O-decanoyl phorbol acetate (TPA)- induced inflammation by using the redness in the ear, the ear's weight (edema), oxidative stress parameters, such as lipid-peroxide (LPO) and nitric oxide (NO), and the pro-inflammatory cytokines involved in inflammation, such as tumour necrosis factor $(TNF)-{\alpha}$, interleukin $(IL)-1{\beta}$ and IL-6. Indomethacine ($0.5mg/20{\mu}L$) was used for the positive control. Results: Selaginella bryopteris produced no mortalities when administered orally at doses from 250 to 2,000 mg/kg bw. Topical treatment with the non-polar methanolic fraction ($10mg/20{\mu}L$) significantly suppressed redness ($2.4{\pm}0.5$) and edema ($30.4{\pm}1$) and effectively reduced the LPO level ($32.3{\pm}3.3$). The NO level was ($8.07{\pm}0.55$), and the $TNF-{\alpha}$, $IL-1{\beta}$, and IL-6 levels were decreased to $69.6{\pm}15.5$, $7.7{\pm}4.8$ and $82.6{\pm}5.9$, respectively. Conclusion: This study demonstrated for the first time the mechanisms underlying the anti-inflammatory effect of medicinal plants like Selaginella bryopteris and quantified the pharmacological interactions between them. The present study showed this herbal product to be a promising anti-inflammatory phytomedicine for the treatment of patients with inflammatory skin diseases.

강황(薑黃)이 고환절제술 및 testosterone으로 유발된 rat의 전립선비대증에 미치는 영향 (The Antihyperplastic Effect of Oral Curcuma longa Ingestion in a Rat Model of Benign Prostatic Hyperplasia)

  • 이상헌;안영민;안세영;김영옥;이병철
    • 대한한방내과학회지
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    • 제30권2호
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    • pp.355-364
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    • 2009
  • Objectives : Benign prostatic hyperplasia (BPH) is one of the most common diseases among elderly men. Though medicines such as 5${\alpha}$-reductase inhibitor (finasteride) have recently been developed for treating BPH, their adverse effects and low efficacy should not be overlooked. Curcuma longa has a long history of use in traditional medicines of Asian countries. Many reports conclude the component curcumin in Curcuma lonfa, has the potential to treat various diseases including prostate cancer. In this study, we investigated the therapeutic effects and action mechanism of Curcuma longa with a BPH rat model. Methods : Sprague-Dawley rats were used with subcutaneous injection of testosterone after castration, which were histologically similar to human BPH. A total of 30 rats were equally divided into five groups: Group 1 served as control (sham-operated group): Group 2 was the model group: Group 3 and Group 4 animals were administered Curcuma longa at dose levels of 0.5g/kg and 1.0g/kg: Group 5 served as a positive control group and was treated with finasteride at a dose of 1 mg/kg. The drugs were administered orally once a day for 30 days consecutively. After 31 days, the prostates were removed, and analyzed for their prostatic weight and histological examination. Results : The oral Curcuma longa ingestion group showed statistically significant decreases in their prostatic weights compared with the BPH-induced group and the oral finasteride ingestion group (p<0.05). Curcuma longa is also very safe in liver and kidney up to a dose of lg/kg. Injected testosterone histologically led to prostatic hyperplasia in rats, but oral Curcuma longa ingestion decreased this change. Conclusions : These results suggest that Curcuma longa has a definite inhibitory effect on BPH and might be an alternative medicine for treatment and prevention of human BPH.

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환자 중심의 의료전달체계 구축에 관한 연구 -일차 의료 강화와 관련된 유럽연합의 예를 중심으로- (A Study on the Patient-centered Medical Delivery System -Focusing on EU examples of strengthening primary care-)

  • 김용민
    • 의료법학
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    • 제20권3호
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    • pp.235-262
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    • 2019
  • 전통적으로 인류를 위협해 오던 감염성 질환이 줄어드는 반면, 심뇌혈관 질환을 포함하여 암, 당뇨와 같은 만성질환이 빠른 속도로 퍼져나가고 있다. 오랜 시간에 걸쳐 발병하며 증세가 장기간 지속되지만 치료가 어려운 만성질환의 특성을 반영, 그 위험요인의 관리와 이에 대응하는 건강증진정책의 마련은 세계 각국의 중요 관심사로 부상하게 되었다. 일차 의료 시스템이 점점 더 복잡한 형태로 변화하는 현대사회의 건강요구에 부합, 건강증진 및 질병 예방 정책, 지역사회에 대응 솔루션 등 이른바 환자 중심의 다 부문 접근방식을 제공하면서 변화된 의료 환경에서 일차 의료의 가치는 다시 한 번 부각 되고 있다. 기존의 의료전달체계로는 급속한 고령화 및 질병 패러다임의 변화, 삶의 질 향상을 향한 민중의 욕구를 감당하기 어려워지면서 유럽연합국가들은 지속적이며 포괄적이고 조정된 관리를 제공하는 일차 의료 시스템을 구축, 그 품질 향상을 위하여 다각적인 노력을 기울이고 있다. 본 논문은 우리나라 보건의료 전달체계의 현황 및 문제점 등을 검토하고, 일차 의료 강화와 관련된 유럽연합의 예를 중심으로 그 시사점을 도출, 환자 중심의 미래형 의료전달체계 구축 방안에 관하여 논의하고자 한다.

Indole-3-carbinol(I3C) 투여에 의한 7,12-Dimethylbenz[α] anthracene(DMBA) 유발 랫드 유선발암 억제 (Pre-initiation treatment of indole-3-carbinol(I3C) inhibits 7,12-Dimethylbenz[α] anthracene(DMBA)-induced rat mammary carcinogenesis)

  • 강진석;안병우;남기택;최미나;김지영;김대중;장동덕;양기화
    • 대한수의학회지
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    • 제41권4호
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    • pp.549-555
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    • 2001
  • Indole-3-carbinol (I3C), one component of cruciferous vegetables (the Fammily of Cruciferae), has been shown to exert its chemopreventive effect in liver, colon and mammary tissue before or concurrent exposure of carcinogen, but there have been several evidences that consumption of I3C induced tumor promotion in some tissues. Our studies were investigated to examine the modifying effects of I3C in the 7,12-dimethylbenz[$\alpha$]anthracene (DMBA) induced rat mammary gland tumor model. Fifty-two female Sprague-Dawley rats were randomly divided into five groups. Animals of the group 1 were given the diet containing 100ppm I3C and animals of the groups 2 and 4 were given the diet containing 300ppm I3C from 6 weeks of age. At 7 weeks of age, the animals of the groups 1, 2 and 3 were intubated with DMBA. All amimals were killed at 20 weeks after carcinogen treatment. There were significant increases of food consumption in I3C feeding groups compared with those of basal diet feeding groups. The incidences of the mammary tumors in the group 1, 2 and 3 were 75.0% (9/12), 56.3% (9/16) and 93.8% (15/16), respectively and the average number of tumors of group 1 (DMBA+I3C 100ppm: $2.08{\pm}0.61$) and 2 (DMBA+I3C 300ppm: $1.19{\pm}0.32$) were significantly lower than that of group 3 (DMBA alone: $4.63{\pm}0.72$) at the value of P<0.05 and P<0.001, respectively. In the pathological examination of appearing tumors, most of them were adenocarcinoma. Many epithelial cells of tumors showed strong estrogen receptor (ER) $\alpha$ expression but there were slight difference of ER $\alpha$ expression among the type of tumors. We suggest that pre-initiation treatment of I3C has an inhibitory effects on mammary carcinogenesis induced by DMBA.

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임상 생체지표를 이용한 오장생체나이 추정 모델 (Models for Predicting Five Jang Biological Ages with Clinical Biomarkers)

  • 김태희;김석;배철영;강영곤;조경희;권수경;박미화
    • 대한한의진단학회지
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    • 제15권2호
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    • pp.175-190
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    • 2011
  • Objectives: Even though there has been no consensus on the concept of viscera organ between the oriental and western medicine, we tried to investigate the correlation between clinical biomarkers of five Jang and chronological age and develop the models for predicting five Jang biological ages by statistical analysis. Methods: We obtained data from about 120,000 subjects who visited health promotion centers for health promotion and disease prevention from January 2004 to June 2009. Participants were included if they were over 20 years old, and excluded if reported to have cardiovascular disease or other serious medical illness such as cancer, malignant hypertension, uncontrolled diabetes, cardiopulmonary insufficiency, liver disease, pancreatic disease or renal disease. Among the clinical biomarkers obtained, we selected the biomarkers which were associated with the function of 5 Jang in previous studies, or showed statistically significant correlation with age. Multiple regression models were used for building prediction models of biological age after adjusting for potential confounders for men and women, respectively. Pearson correlation coefficient was calculated to examine the linear relationship between age and various biomarkers, and multiple regression analysis was used for building the prediction models of five Jang biological ages for men and women, respectively. All statistical data analysis was performed by using SPSS Version 12.0 software and statistical significance was obtained if p<0.05. Results: For males, the best models were developed using 12, 2, 8, 3, and 4 biomarkers for predicting biological ages of heart, lung, liver, pancreas, and kidney, respectively (R2 = 0.57, 0.43, 0.11, 0.24, and 0.93, respectively). Similar to males, for the females, 10, 2, 8, 3, and 4 biomarkers were selected as the models respectively (R2 = 0.76, 0.44, 0.14, 0.38, and 0.89, respectively). Conclusions: As we have developed for the first time the models for predicting five Jang biological ages with common clinical biomarkers, it is expected that these models may be used as clinical supplementary tools in the evaluation of aging status and functional decline of five Jang according to age in health promotion centers and private clinics. At the same time, it is considered that the use as objective tools to evaluate aging status and functional decline of each Jang.

유방재건술에 사용된 식염수 보형물의 임상적 내구성과 누출 (Clinical Durability and Deflation of Saline-Filled Breast Implant in Breast Reconstruction)

  • 김일국;이준호;김용하;김태곤;이수정;강수환
    • Archives of Plastic Surgery
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    • 제38권6호
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    • pp.808-814
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    • 2011
  • Purpose: Despite wide clinical use of breast implants, there is continued concern about the lifespan of these devices. The causes of explantation were infection, deflation of implant and patient's want. The deflation of saline-filled breast implant was related to strength and durability of implant shell. The purpose of this study is to evaluate the clinical durability of saline-filled breast implant through the analysis of duration until deflation occurred, causes, incidence and influencing factors. Methods: Retrospective analyses were conducted on clinical records for 19 cases of deflation of saline-filled breast implant from 201 cases of breast reconstruction with saline-filled implant between May 1995 and June 2011. The authors had been analyzed the causes of deflation, survival duration, symptom, sign, nipple excision, volume of implant, saline filling, method of reoperation, breast cancer stage and combined capsular contracture. Results: The causes of deflation were attributed to the cases that cannot be evaluated the causes in 15 cases, fall down in 1 case, mammography in 2 cases, accidental needle injury in 1 case. Mean survival duration was 4 years and 5 months. The duration of survival was less than 1 year for 5 cases, 1 year to 10 years for 10 cases, more than 10 years for 4 cases. The volume between 201 and 250 cc of deflated breast implant was rated as high by 14.0 percent. The deflation rate of underfilled implants was 11.4 percent, adequate filled implants was 9.3 percent. None of overfilled implant was deflated. The deflation of smooth surface implant was 5 of 152 cases. Textured implant was 14 of 49 cases. The capsular contracture of non-deflated breast implant was 28 of 182 cases and that of deflated breast implant was 6 of 19 cases. Conclusion: The patients who underwent saline-filled breast implant implantation should be informed that their implant could deflate. The analysis of clinical durability and causes of deflation in breast implant was important for the prediction and prevention of reopeation. The authors could suppose the causes of deflation of saline-filled breast implant through history, duration of survival, inspection of the shell of implant.

중장년층의 치매관련 태도와 치매예방행위에 관한 연구 (A Study on Dementia Related Attitudes of the Middle Aged and Their Dementia Preventive Behaviors)

  • 박미정;오두남;문혜경
    • 한국콘텐츠학회논문지
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    • 제18권4호
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    • pp.653-663
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    • 2018
  • 본 연구는 중장년층의 치매관련 태도 및 치매예방행위의 정도, 그리고 상관관계를 확인하기 위한 서술적 조사연구이다. 본 연구에서는 2017년 10월 1일부터 9일까지 국내의 40~60대 중장년층을 대상으로 온라인 설문조사를 통해 자료를 수집하였으며 최종 220부의 설문지가 수거되었다. 자료는 t-test, One way ANOVA, Pearson's correlation coefficient 등을 통해 분석되었다. 연구결과는 다음과 같다. 첫째, 연구대상자 중 52.7%가 치매예방에 대한 관심이 높았으나 단지 5.9%만이 치매와 관련된 교육을 받은 경험이 있었다. 둘째, 암, 뇌혈관질환, 심혈관질환에 비해 치매 발병에 대한 두려움은 높았으나, 질병극복에 대한 자신감, 일상생활 유지 가능성에 대한 기대감, 가족 및 주변인의 도움에 대한 기대감, 국가의 의료 및 경제적 지원에 대한 기대감은 유의하게 낮았다. 셋째, 치매예방행위를 실천할수록 질병극복에 대한 자신감, 일상생활 유지가능성에 대한 기대감, 가족 및 주변인의 도움에 대한 기대감, 국가의 의료 및 경제적 지원에 대한 기대감이 높아졌으며, 치료비의 부담감이 낮아졌다. 본 연구결과를 통해 노인질환으로만 생각하였던 치매에 대해 중장년층의 인식 변화와 조기예방을 위한 사회적 제도 마련 및 교육, 홍보 활동이 필요하다는 것을 확인하였다. 결과적으로 이러한 개인적, 사회적 노력은 치매로 인한 신체적, 심리적, 사회 경제적인 문제를 감소시켜 국민의 삶의 질을 향상시킬 것이라 사료된다.

게르마늄강화효모의 게르마늄결합 단백질의 분리 및 확인에 관한 연구 (Study on Identification and Purification of Germanium-fortified Yeast)

  • 이성희;이상광;이현주;이용섭;박은우
    • Applied Biological Chemistry
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    • 제49권1호
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    • pp.55-59
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    • 2006
  • 본 연구는 게르마늄 강화 효모의 제조 공정을 위한 최적의 조건을 확인하고 제조된 게르마늄 강화 호모 내의 게르마늄 결합 상태 확인을 목적으로 수행하였다. 그 결과 영양소별 최적조건은 글루코스 3.0%, 효모추출물 0.3%, 펩톤 0.5%이었으며, 이 때 생성된 균체량은 67.4 mg/ml이었다. 또한 균체와 게르마늄 용액 혼합 비율은 1 : 0.5(50%), pH는 6.5 및 온도는 $35^{\circ}C$로 배양하는 조건이 높은 함량의 게르마늄을 효모 균체 내로 흡수시켜 게르마늄 강화 효모를 생산하는 것을 가능하게 하였다. 배양 과정을 통해 생산된 게르마늄 강화 효모는 배양 과정동안의 구조적 변화에 의해 효모 내에 흡수된 무기 형태인 $GeO_2$ 게르마늄과는 다른 구조를 나타내었다. 게르마늄 강화 효모는 효모 배양 과정을 통해 인체에 안전한 형태인 천연 유기 게르마늄을 형성하였다. 이는 각종 암, 성인병의 예방과 치료, 인체 면역력의 증진 등 건강 증진을 위한 새로운 기능성 원료로의 활용이 기대되며, 이에 대한 안전성 등의 지속적인 연구가 필요할 것으로 사료된다.

청목노상 뽕잎에서 분리한 Helicobacter pylori 저해물질에 대한 약효평가 (Evaluation of Medicinal Activity on Isolated Inhibitory Compounds against Helicobacter pylori from Cheongmoknosang Mulberry Leaves)

  • 김병오;조영제
    • Journal of Applied Biological Chemistry
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    • 제54권4호
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    • pp.265-269
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    • 2011
  • 뽕잎으로부터 분리한 H. pylori 억제물질이 건강기능식품으로 산업화되기 위하여 이들 유용성분이 생체 내에서 약리성을 가지는지 여부를 검토하였다. 청목노상으로부터 분리한 혼합물은 $200{\mu}g/100{\mu}L$의 농도에서 H. pylori에 대한 저해 clear zone을 형성하여 항균활성을 나타내었고, C57BL/6종 mouse에 H. pylori의 감염을 유도 한 결과 6주 이상이 되어야 H. pylori의 감염이 되는 것을 확인하였으며, 이 때 감염균수는 평균 $8{\times}10^5$ CFU/mL이었다. 경구투여를 통해 청목노상뽕잎에서 추출한 유효성분의 혼합물이 H. pylori 감염에 있어 예방 및 치료 효과를 갖는지 시험한 결과, 절개된 위속의 H. pylori colony 수가 약물투여 군에서 대조군에 비해 감소한 것을 확인하였다. 마우스의 혈청을 분리하여 immunoglobulin isotype을 측정한 결과, 대조군 보다 IgG1, IgA 등이 높게 생성되는 것이 확인되었고, 시료 혼합물에 의해 항체생성이 증가되어 H. pylori 감염을 억제하는 것으로 판단되었다. 이러한 결과로 뽕잎에서 추출한 유용성분인 caffeic acid, rosemarinic acid와 chlorogenic acid가 H. pylori의 감염에 있어서 예방 또는 치료효과가 있는 것으로 확인되었다. 따라서 H. pylori에 의해 유발되고 감염률이 증가되고 있는 위염, 위궤양, 위암의 예방과 치료가 가능할 것으로 판단되었다.

돌연변이를 통한 미세조류 Haematococcus pluvialis의 Astaxanthin 생산성의 향상 (Enhancement of Astaxanthin Production of Haematococcus pluvialis by Mutation)

  • 박복준;김법민;심수현;김정동;이철균
    • 한국미생물·생명공학회지
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    • 제34권2호
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    • pp.136-142
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    • 2006
  • Haematococcus pluvialis는 astaxanthin을 많이 생산하는 미세조류로써 astaxanthin은 항산화제로 면역반응을 강화시켜주며 항암효과 등을 가지고 있다. 그런데 야생종의 낮은 생장속도와 astaxanthin의 생산에는 한계가 있기 때문에 이를 극복하기위해 돌연변이 방법을 사용하였다. 돌연변이 방법으로는 자외선 조사와 EMS와 colchicines 처리를 사용하여 야생종보다 colony가 크고 더 붉은 것은 선택하였다. 선별된 돌연변이들은 carotenoid 생합성과정을 억제하는 nicotine 과 diphenylamine을 이용하여 다시 선별하였다. 그때 생존율은 40-50%이었고 여기서 선별된 균주들을 다시 규모를 키워 배양한 결과 자외선 처리한 돌연변이인 U15-5가 야생종보다 세포당 total carotenold 생산량이 1.68배 증가하였고, colchicine 처리한 DS와 M4-3은 생장속도가 $20\sim30%$ 증가하였다.