• Asian Pacific Journal of Cancer Prevention
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• 제16권17호
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• pp.7561-7566
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• 2015

Ziziphus jujuba (ZJ) fruit is rich in bioactive functional components such as polysaccharides, triterpenoid acid, flavonoids and oleamide. It has been commonly used in the treatment of various diseases including diabetes, digestive disorders, diarrhea, skin infections, liver and urinary diseases. However, its dietary effect on chemoprevention of colon cancer has never been studied. The present study was to evaluate the protective effects of dietary ZJ on colitis-associated colon carcinogenesis in azoxymethane (AOM)-dextran sodium sulphate (DSS)-treated mice. AOM was injected (10 mg/kg b.wt., i.p.) and three cycles of 2% DSS in drinking water for 7 days with 14 days of normal drinking water in-between was administered to induce colitis-associated colon cancer. ZJ fruit was supplemented in feed as 5 and 10%. Dietary ZJ significantly attenuated aberrant crypt foci (ACF) formation thereby decreasing the progression of hyperplasia to dysplasia. In addition, it significantly reduced circulating white blood cells, lymphocytes, neutrophils, monocytes, eosinophils, basophils and platelets compared to colon cancer mice. We conclude that ZJ supplementation delayed the progression of colon cancer from hyperplasia to dysplasia and ultimately adenocarcinoma and cancer. In addition, it decreased circulating tumor-related leucocytes, main regulators of cancer inflammation. Therefore, dietary consumption of ZJ fruit attenuated the formation of ACF and delayed the progression of colon cancer.

• 한국식품영양학회지
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• 제31권4호
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• pp.559-564
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• 2018

Rehmannia glutinosa root (R. root) has been used as an traditional medicine, and is important resource for natural medicines and functional foods. However, R. root contains catalpol which is bitter, and undigested sugars, including stachyose and raffinose, which can cause diarrhea. Therefore, this study was performed to identify the changes in reducing sugar from undigested sugars and in catalpol contents in R. root slurry induced by aging treatments. R. root slurry was treated at $10{\sim}70^{\circ}C$ for up to 72 hr; and extracted with a 50% ethanol solution. The catalpol content was analyzed using HPLC-UVD. Reducing sugar content generated from undigested sugars was measured by the Nelson-Somogyi methods, and the reaction rates were calculated from their variation according to aging time and temperature. During the aging treatment, reducing sugar increased and catalpol decreased. Their formation and degradation rates were highest at $50^{\circ}C$ and $30{\sim}40^{\circ}C$, and their rates were $2.05mg/g{\cdot}hr$ and 23.09 to 23.33%/hr, respectively. These results indicated that aging treatment can positively affect the sweetness and digestibility of R. root slurry. Therefore, an aging treatment could be considered for improving the taste and digestibility of R. root.

• Asian Pacific Journal of Cancer Prevention
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• 제17권7호
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• pp.3095-3099
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• 2016

Background: Cervical cancer is the most frequently diagnosed cancer among women in India. Understanding quality of life (QOL) in women undergoing chemo-radiotherapy for cervical cancer will help in introducing interventions for better care and outcomes in these women. This study assessed QOL before and after chemo-radiotherapy in cervical cancer patients. Materials and Methods: This follow-up study covered sixty-seven newly diagnosed women with advanced cervical cancer (stages 2b to 4b). Structured questionnaires (the European Organization for Research and Treatment of Cancer, EORTC QLQ-C30 and EORTC QLQ-CX24) were used to assess the change in QOL after 6 months of treatment. Results: The mean age of women at the time of detection of cervical cancer was $52.3{\pm}11.29$ years (Range 30-75 years). Six months survival was 92.53%. The mean global health score of cervical cancer patients after six months of treatment was 59.52, which was significantly higher than the pre-treatment score of 50.15 (p=0.00007). Physical, cognitive and emotional functioning improved significantly (p<0.05) after treatment. Fatigue, pain, insomnia and appetite loss improved but episodes of diarrhea increased after treatment. The mean "symptoms score" using EORTC QLQ-CX24 post treatment was 20.0 which was significantly lower as compared to the pre- treatment score 30.0 (p<0.00001). Sexual enjoyment and sexual functioning decreased significantly after treatment. Conclusions: QOL of newly diagnosed cervical cancer patients improved significantly following chemo-radio therapy. Enhancement was also demonstrated on three of the five functional scales of EORTC QLQ-C30. To further improve QOL, interventions focusing on social and psychological support and physical rehabilitation may be needed.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제20권1호
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• pp.47-54
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• 2017

Purpose: Clinical symptoms associated with Clostridium difficile infection (CDI) can vary widely. Carrier state without apparent symptoms is relatively common during infancy. The objective of this study was to determine the association of C. difficile colonization with bowel habit change and the effect of C. difficile colonization treatment on restoration of normal bowel habit. Methods: Between 2006 and 2014, infants at 1 to 12 months of age with diarrhea for more than 2 weeks who did not improve with conservative care were recruited from Gachon University Gil Medical Center. Infants who were followed up for at least 7 days were included. The presence or absence of C. difficile colonization, effect of metronidazole, and other medical records were reviewed. To determine the association between CDI and bowel habit change, logistic regression analysis was used. Results: Of a total of 126 infants, 74 (58.7%) were male patients. Of the 126 patients, 27 (21.4%) had C. difficile colonization. Significant (p<0.05) risk factors for C. difficile colonization included artificial milk feeding (odds ratio [OR], 4.310; 95% confidence interval [CI], 1.564-11.878), prior rotavirus vaccination (OR, 4.322; 95% CI, 1.018-18.349), and antibiotic use (OR, 4.798; 95% CI, 1.430-16.101). There was improvement in bowel habit after metronidazole therapy (OR, 0.34; 95% CI, 0.15-0.79; p<0.05), regardless of the presence or absence of C. difficile colonization, Conclusion: There was no significant correlation between bowel habit change and C. difficile colonization during infancy. However, metronidazole can be used as an optional method to manage functional gastrointestinal disorders.

• Journal of Animal Science and Technology
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• 제63권3호
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• pp.465-474
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• 2021

It has become important to explore alternative feed ingredients to reduce feed costs, which are burdensome for livestock production. In addition, it is desirable to find efficient and functional alternative ingredients for traditional feed ingredients in pig diets, considering the stress and sensitivity of disease of pig. Rice is produced around the world like corn that is the typical energy source in pig diets. Although the nutritional quality varies depending on the degree of milling, rice, except whole grains (paddy rice), contains more starch than corn and its structure and granule size are easier to digest than corn. In addition, the fact that rice has fewer non-starch polysaccharides (NSP) and anti-nutritional factors (ANFs) is also effective in improving digestibility and various polyphenols in rice can help modulation of immune responses, which can be beneficial to the gastrointestinal environment and health of pig. Many studies have been conducted on rice focusing on things such as degree of milling, substitution rates of corn, granule size, and processing methods. Most results have shown that rice can be partially or completely used to replace corn in pig diets without negatively affecting pig growth and production. While further research should focus on the precise biological mechanisms at play, it was confirmed that the use of rice could reduce the use of antibiotics and pig removal and protect pigs from gastrointestinal diseases including diarrhea. From this point of view, rice can be evaluated as a valuable feed ingredient for swine diets.

• Journal of Microbiology and Biotechnology
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• 제31권9호
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• pp.1191-1199
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• 2021

Enteropathogenic Escherichia coli (EPEC), which belongs to the attaching and effacing diarrheagenic E. coli strains, is a major causative agent of life-threatening diarrhea in infants in developing countries. Most EPEC isolates correspond to certain O serotypes; however, many strains are non-typeable. Two EPEC strains, EPEC001 and EPEC080, which could not be serotyped during routine detection, were isolated. In this study, we conducted an in-depth characterization of their putative O-antigen gene clusters (O-AGCs) and also performed constructed mutagenesis of the O-AGCs for functional analysis of O-antigen (OAg) synthesis. Sequence analysis revealed that the occurrence of O-AGCs in EPEC001 and E. coli O132 may be mediated by recombination between them, and EPEC080 and E. coli O2/O50 might acquire each O-AGC from uncommon ancestors. We also indicated that OAg-knockout bacteria were highly adhesive in vitro, except for the EPEC001 wzy derivative, whose adherent capability was less than that of its wild-type strain, providing direct evidence that OAg plays a key role in EPEC pathogenesis. Together, we identified two EPEC O serotypes in silico and experimentally, and we also studied the adherent capabilities of their OAgs, which highlighted the fundamental and pathogenic role of OAg in EPEC.

• Journal of Neurogastroenterology and Motility
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• 제24권4호
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• pp.669-675
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• 2018

Background/Aims Functional dyspepsia (FD) and irritable bowel syndrome (IBS) are common gastrointestinal (GI) disorders and these patients frequently overlap. Trimebutine has been known to be effective in controlling FD co-existing diarrhea-dominant IBS, however its effect on overlap syndrome (OS) patients has not been reported. Therefore, we investigated the effect of trimebutine on the model of OS in guinea pigs. Methods Male guinea pigs were used to evaluate the effects of trimebutine in corticotropin-releasing factor (CRF) induced OS model. Different doses (3, 10, and 30 mg/kg) of trimebutine were administered orally and incubated for 1 hour. The next treatment of $10{\mu}g/kg$ of CRF was intraperitoneally injected and stabilized for 30 minutes. Subsequently, intragastric 3 mL charcoal mix was administered, incubated for 10 minutes and the upper GI transit analyzed. Colonic transits were assessed after the same order and concentrations of trimebutine and CRF treatment by fecal pellet output assay. Results Different concentrations (1, 3, and $10{\mu}g/kg$) of rat/human CRF peptides was tested to establish the OS model in guinea pigs. CRF $10{\mu}g/kg$ was the most effective dose in the experimental OS model of guinea pigs. Trimebutine (3, 10, and 30 mg/kg) treatment significantly reversed the upper and lower GI transit of CRF induced OS model. Trimebutine significantly increased upper GI transit while it reduced fecal pellet output in the CRF induced OS model. Conclusions Trimebutine has been demonstrated to be effective on both upper and lower GI motor function in peripheral CRF induced OS model. Therefore, trimebutine might be an effective drug for the treatment of OS between FD and IBS patients.

• Journal of Microbiology and Biotechnology
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• 제34권3호
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• pp.634-643
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• 2024

Juglans mandshurica Maxim. walnut (JMW) is well-known for the treatment of dermatosis, cancer, gastritis, diarrhea, and leukorrhea in Korea. However, the molecular mechanism underlying its antiobesity activity remains unknown. In the current study, we aimed to determine whether JMW can influence adipogenesis in 3T3-L1 preadipocytes and high-fat diet rats and determine the antioxidant activity. The 20% ethanol extract of JMW (JMWE) had a total polyphenol content of 133.33 ± 2.60 mg GAE/g. Considering the antioxidant capacity, the ABTS and DPPH values of 200 ㎍/ml of JMWE were 95.69 ± 0.94 and 79.38 ± 1.55%, respectively. To assess the anti-obesity activity of JMWE, we analyzed the cell viability, fat accumulation, and adipogenesis-related factors, including CCAAT-enhancer-binding protein alpha (C/EBPα), sterol regulatory element-binding protein-1c (SREBP1c), peroxisome proliferator-activated receptor-gamma (PPARγ), fatty acid synthase (FAS), and acetyl-CoA carboxylase (ACC). We found that total lipid accumulation and triglyceride levels were reduced, and the fat accumulation rate decreased in a dose-dependent manner. Furthermore, JMWE suppressed adipogenesis-related factors C/EBPα, PPARγ, and SREBP1c, as well as FAS and ACC, both related to lipogenesis. Moreover, animal experiments revealed that JMWE could be employed to prevent and treat obesity-related diseases. Hence, JMWE could be developed as a healthy functional food and further explored as an anti-obesity drug.

• 한국자원식물학회지
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• 제27권1호
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• pp.11-21
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• 2014

본 연구는 Atractylodes macrocepala KOIDZ.의 급성 경구 독성을 평가하기 위하여 SD계 Rat를 이용하여 농도별 열수 추출물을 투여하고 체중변화, 이상반응, 장기무게변화, 혈액학적 이상반응, 조직병리학적 이상반응 등을 측정하였다. Atractylodes macrocepala KOIDZ.를 투여한 실험군에서 비교적 낮은 농도에서 체중의 감소가 관찰되었으나, 이상반응이나 장기무게에 있어 유의성 있는 변화는 관찰되지 않았다. 혈액학적 지표에 있어서도 비교적 낮은 농도에서 WBC 및 AST의 증가가 관찰되었다. 조직병리학적 소견에서 일부 간조직의 지방변성이 관찰되어 간독성과 간세포에 미치는 영향에 대한 연구가 필요할 것으로 판단된다. 이와 같은 연구의 결과를 종합해 볼 때 백출이 경구투여에 있어 비교적 안전한 물질인 것으로 판단할 수 있다. 그러나 단회 경구투여 급성독성시험만으로 천연물 생약에 대한 독성 유무를 판단하기에는 일정부분 제약이 있으므로, 추가적으로 2주(또는 4주) 반복 경구투여 독성시험 및 13주 반복 경구투여 독성시험 그리고 유전독성에 대한 연구들이 순차적으로 수행되어야 하며, 이를 통하여 백출에 대한 체계적인 독성정보를 구축함으로써 보다 정확하고 과학적 근거에 입각한 안전성 자료가 확보될 수 있을 것으로 기대한다.

• Clinical and Experimental Pediatrics
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• 제46권11호
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• pp.1089-1094
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• 2003

목 적 : 전해질이 함유된 PEG 용액은 삼투성 제재로 소아의 대장내시경 및 수술 전 저치를 위한 장세척에 주로 사용되어 왔으나 다른 삼투성 제재에 비하여 만성 기능성 변비 치료의 분변박힘 제거에 대한 연구는 극히 미흡하다. 이에 저자들은 만성 기능성 변비로 입원한 환아들을 대상으로 분변 박힘 제거에 있어서 전해질이 함유된 PEG 용액의 효과 및 안전성에 대하여 알아보고자 하였다. 방 법: 2000년 5월부터 2003년 7월까지 을지병원 소아과에 입원한 만성 기능성 변비 환아 26명(11명은 외래에서 일반적 방법으로 분변박힘 제거에 실패하였다)을 대상으로 전해질이 함유된 PEG 용액을 경구 요법(9명, 34.6%), 관장 요법(10명, 38.4%), 또는 병행 요법(7명, 14.3%)을 시행하여 분변 박힘 제거의 효과와 배변횟수의 변화, 부작용의 발생을 확인하였다. PEG 용액은 경구 요법의 경우 1회 60-80 mL/kg(PEG로 3.9-5.3 g/kg)를 3시간 이내에 음용하였으며, 하루에 1-2회 시행하였다. 관장 요법의 경우 1회 15-25 mL/kg(PEG로 0.975-1.625 g/kg)로 하루에 1-3회 관장을 시행하였다. 결 과 : 모든 환아에서 PEG 용액 요법 시행 전에 단순 복부 방사선 사진에서 분변 박힘이 확인되었으며 시행 후에는 분변 박힘이 호전되었다. 배변횟수는 관장 요법을 시행한 환아 중에서 1명을 제외한 모든 환아에서 유의한 증가를 보였다. 부작용은 하루 6회 이상의 수양성 변이 3명(11.5%)에서 발생하였고, 두통이 1명(3.8%)에서 발생하였으나 별다른 치료없이 호전되었다. 이외의 부작용의 증상은 발생하지 않았다. 치료 후 혈청 전해질 농도 검사는 16명의 환아에서 시행되었으며 두통을 호소했던 환아에서 경미한 고나트륨혈증(146 mmol/L)이 있었으며 이외의 환아에서는 정상 범위 내로 나타났다. 치료 후 혈청 삼투질 농도 검사는 11명의 환아에서 시행됐으며 모두 정상 범위 내로 나타났다. 순응도는 경구 복용군의 환아들이 짠맛에 대한 부담감을 호소하였으나 복용에는 지장이 없었다. 결 론 : 일반적인 요법으로 분변 박힘 제거에 실패한 환아를 비롯한 만성 기능성 변비 환아에서 전해질이 포함된 PEG 용액은 분변 박힘 제거에 효과가 있었으며 심각한 부작용은 없었으며 순응도도 좋은 것으로 나타났다. 그러나 연구 대상의 수가적고, 모든 환아에서 치료 후의 혈청 전해질 농도 및 삼투질 농도의 확인이 이루어지지 않은 문제점이 있기 때문에 향후 보다 많은 소아를 대상으로 연구가 시행되어져야 할 것으로 생각된다.