• 제목/요약/키워드: Kidney Cancer

검색결과 366건 처리시간 0.021초

강낭콩의 열처리 및 발효에 의한 렉틴의 활성변화 (Changes of Lectin Activity of Kidney Beans by floating and Fermentation)

  • 유수연;임지영;박양호;서경범;박원봉
    • 한국식품영양과학회지
    • /
    • 제31권1호
    • /
    • pp.1-6
    • /
    • 2002
  • 강낭콩을 가열한 후 B. subtilis ATCC 51189로 발효시켜 새로운 활성 단백질의 생성여부를 확인하였다. 생강낭콩의 수용성 단백질은 열처리에 의하여 감소하였으며, 발효과정에서 단백질의 양은 변화하지 않았으나, 새로운 아미노산이 합성되었다. 생강낭콩의 수용성 단백질(raw protein, RP)은 분자량 118 kDa의 PHA(phytohemagglutinin)의 전형적인 모습을 보였으나, 열처리한 단백질(heated protein, HP)의 경우, RP의 band는 사라지고, 저분자 peptide로 변화되었으며, 발효과정에 의하여 분자량 18.0 kDa의 새로운 단백질(fermented protein, FP)이 생성된 것을 확인하였다. 또한, RP는 128 HU, HP는 4HU, FP는 32HU의 적혈구응집효과를 보였으며, 위암세포(SNU-1)에 대하여 RP 및 FP는 비교적 높은 농도($IC_{50}$/ $\mu\textrm{g}$/mL)에서 항암활성을 보였다. 그리고, RP 및 FP의 경우 1 $\mu\textrm{g}$/mL에서 림프구 증식효과를 보였고, IFN-${\gamma}$, IL-12의 분비를 촉진하였다. 그러나 HP는 항암효과, 림프구 증식효과, cytokine의 분비촉진효과를 보이지 않았다. 따라서, 강낭콩 lectin은 가열에 의하여 활성물질이 파괴되나, B. subtilis에 의한 발효과정에서 새로운 cytokine 분비촉진물질이 생성되는 것을 확인할 수 있었다.

Antioxidant, Anticancer and Anticholinesterase Activities of Flower, Fruit and Seed Extracts of Hypericum amblysepalum HOCHST

  • Keskin, Cumali
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제16권7호
    • /
    • pp.2763-2769
    • /
    • 2015
  • Background: Cancer is an unnatural type of tissue growth in which the cells exhibit unrestrained division, leading to a progressive increase in the number of dividing cells. It is now the second largest cause of death in the world. The present study concerned antioxidant, anticancer and anticholinesterase activities and protocatechuic, catechin, caffeic acid, syringic acid, p-coumaric acid and o-coumaric concentrations in methanol extracts of flowers, fruits and seeds of Hypericum amblysepalum. Materials and Methods: Antioxidant properties including free radical scavenging activity and reducing power, and amounts of total phenolic compounds were evaluated using different tests. Protocatechuic, catechin, caffeic acid, syringic acid, p-coumaric acid and o-coumaric concentrations in extracts were determined by HPLC. Cytotoxic effects were determined using the MTT test with human cervix cancer (HeLa) and rat kidney epithelium cell (NRK-52E) lines. Acetyl and butyrylcholinesterase inhibitory activities were measured by by Ellman method. Results: Total phenolic content of H. amblysepalum seeds was found to be higher than in fruit and flower extracts. DPPH free radical scavenging activity of the obtained extracts gave satisfactory results versus butylated hydroxyanisole and butylated hydroxytoluene as controls. Reducing power activity was linearly proportional to the studied concentration range: $10-500{\mu}g/mL\;LC_{50}$ values for H. amblysepalum seeds were 11.7 and 2.86 respectively for HeLa and NRK-52E cell lines. Butyryl-cholinesterase inhibitory activity was $76.9{\pm}0.41$ for seed extract and higher than with other extracts. Conclusions: The present results suggested that H. amblysepalum could be a potential candidate anti-cancer drug for the treatment of human cervical cancer, and good source of natural antioxidants.

Mechanisms of Cadmium Carcinogenicity in the Gastrointestinal Tract

  • Bishak, Yaser Khaje;Payahoo, Laleh;Osatdrahimi, Alireza;Nourazarian, Alireza
    • Asian Pacific Journal of Cancer Prevention
    • /
    • 제16권1호
    • /
    • pp.9-21
    • /
    • 2015
  • Cancer, a serious public health problem in worldwide, results from an excessive and uncontrolled proliferation of the body cells without obvious physiological demands of organs. The gastrointestinal tract, including the esophagus, stomach and intestine, is a unique organ system. It has the highest cancer incidence and cancer-related mortality in the body and is influenceed by both genetic and environmental factors. Among the various chemical elements recognized in the nature, some of them including zinc, iron, cobalt, and copper have essential roles in the various biochemical and physiological processes, but only at low levels and others such as cadmium, lead, mercury, arsenic, and nickel are considered as threats for human health especially with chronic exposure at high levels. Cadmium, an environment contaminant, cannot be destroyed in nature. Through impairment of vitamin D metabolism in the kidney it causes nephrotoxicity and subsequently bone metabolism impairment and fragility. The major mechanisms involved in cadmium carcinogenesis could be related to the suppression of gene expression, inhibition of DNA damage repair, inhibition of apoptosis, and induction of oxidative stress. In addition, cadmium may act through aberrant DNA methylation. Cadmium affects multiple cellular processes, including signal transduction pathways, cell proliferation, differentiation, and apoptosis. Down-regulation of methyltransferases enzymes and reduction of DNA methylation have been stated as epigenetic effects of cadmium. Furthermore, increasing intracellular free calcium ion levels induces neuronal apoptosis in addition to other deleterious influence on the stability of the genome.

Analysis of the Occurrence of Diseases Following Gastrectomy for Early Gastric Cancer: a Nationwide Claims Study

  • Seo, Ho Seok;Na, Yewon;Jung, Jaehun
    • Journal of Gastric Cancer
    • /
    • 제21권3호
    • /
    • pp.279-297
    • /
    • 2021
  • Purpose: Various changes in nutrition, metabolism, immunity, and psychological status occur through multiple mechanisms after gastrectomy. The purpose of this study was to predict disease status after gastrectomy by analyzing diseases pattern that occur or change after gastrectomy. Materials and Methods: A retrospective cohort study was conducted using nationwide claims data. Patients with gastric cancer who underwent gastrectomy or endoscopic resection were included in the study. Eighteen target diseases were selected and categorized based on their underlying mechanism. The incidence of each target disease was compared by dividing the study sample into those who underwent gastrectomy (cases) and those who underwent endoscopic resection for early gastric cancer (controls). The cases were matched with controls using propensity score matching. Thereafter, Cox proportional hazard models were used to evaluate intergroup differences in disease incidence after gastrectomy. Results: A total of 97,634 patients who underwent gastrectomy (84,830) or endoscopic resection (12,804) were included. The incidence of cholecystitis (P<0.0001), pancreatitis (P=0.034), acute kidney injury (P=0.0083), anemia (P<0.0001), and inguinal hernia (P=0.0007) were higher after gastrectomy, while incidence of dyslipidemia (P<0.0001), vascular diseases (ischemic heart disease, stroke, and atherosclerosis; P<0.0001, P<0.0001, and P=0.0005), and Parkinson's disease (P=0.0093) were lower after gastrectomy. Conclusions: This study identifies diseases that may occur after gastrectomy in patients with gastric cancer.

하악골에 전이된 위암에 대한 증례 보고 (METASTATIC CANCER OF THE MANDIBLE: A CASE REPORT)

  • 서고은;정지아;송준호;정태영;이수운;박상준
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • 제32권1호
    • /
    • pp.86-88
    • /
    • 2010
  • Oral metastatic tumors are uncommon and account for about 1% of malignant oral neoplasm. The metastatic lesions are common in breast, lung, kidney and thyroid cancer. About 20% of oral mucosal metastasis is founded before detection of primary lesions. Usually, the metastatic lesions of the oral cavity are involved in the jaw bone, especially mandible more than the oral soft tissues. We report a case diagnosed as the stomach cancer with mandible metastatic lesion looking like TMJ abscess.

Regulation of Pharmacogene Expression by microRNA in The Cancer Genome Atlas (TCGA) Research Network

  • Han, Nayoung;Song, Yun-Kyoung;Burckart, Gilbert J.;Ji, Eunhee;Kim, In-Wha;Oh, Jung Mi
    • Biomolecules & Therapeutics
    • /
    • 제25권5호
    • /
    • pp.482-489
    • /
    • 2017
  • Individual differences in drug responses are associated with genetic and epigenetic variability of pharmacogene expression. We aimed to identify the relevant miRNAs which regulate pharmacogenes associated with drug responses. The miRNA and mRNA expression profiles derived from data for normal and solid tumor tissues in The Cancer Genome Atlas (TCGA) Research Network. Predicted miRNAs targeted to pharmacogenes were identified using publicly available databases. A total of 95 pharmacogenes were selected from cholangiocarcinoma and colon adenocarcinoma, as well as kidney renal clear cell, liver hepatocellular, and lung squamous cell carcinomas. Through the integration analyses of miRNA and mRNA, 35 miRNAs were found to negatively correlate with mRNA expression levels of 16 pharmacogenes in normal bile duct, liver, colon, and lung tissues (p<0.05). Additionally, 36 miRNAs were related to differential expression of 32 pharmacogene mRNAs in those normal and tumorigenic tissues (p<0.05). These results indicate that changes in expression levels of miRNAs targeted to pharmacogenes in normal and tumor tissues may play a role in determining individual variations in drug response.

항암제 투여 후 발생한 수족비증(手足痺症) 환자 치험례 (Traditional Korean Medical Treatment for Chemotherapy-induced Peripheral Neuropathy - a Case Report)

  • 유승연;정종수;박재우;윤성우
    • 대한암한의학회지
    • /
    • 제12권1호
    • /
    • pp.83-89
    • /
    • 2007
  • Chemotherapy has many known side effects. Neuropathy is a common side effect when using cisplatin. The clinical course varies and depends on the agents used and their cumulative dose. Although symptoms can resolve completely, in most patients chemotherapy-induced peripheral neuropathy is either only partially reversible or completely irreversible. Current management for chemotherapy-induced peripheral neuropathy is symptomatic relief using membrane stabilizing medications and antidepressants. Dysaesthesia and pain involving the feet and hands are described in traditional korean medicine. In traditional korean medicine, the pathogenesis is related to the inability to direct Qi and Blood to the extremities, and is associated with Qi, Blood, Yang and Kidney deficiencies. We report a case of a 52 years old female patient treated with acupuncture and bleeding treatment for the goal of improving the symptoms of chemotherapy induced peripheral neuropathy. Further study and other medical method will be needed in order to improve the effect and determine the long-term effect of traditional korean medicine in treating Chemotherapy-induced Peripheral Neuropathy.

  • PDF

오미자(五味子) 추출물의 인간 전립선암 세포주 PC-3에 대한 성장 억제 효과 (Antiproliferative effect of Schisandrae Fructus extract on PC-3 human prostate cancer cells)

  • 문정민;석가형;조수인
    • 대한본초학회지
    • /
    • 제27권4호
    • /
    • pp.17-23
    • /
    • 2012
  • Objectives : Schisandrae Fructus (SF) has traditionally been used to balance level of body fluid and to strengthen kidney function. It has been reported that the SF extract has antioxidant, hepatoprotective, neuroprotective and anticancer effects. This study investigated an antiproliferative effect of SF extract on PC-3 human prostate cancer cells and analyzed active ingredients of SF extract qualitatively and quantitatively. Methods : We examined the antiproliferative effect of SF extract with MTT assay, DAPI staining and annexin-V/7-AAD double staining. The active ingredients of SF extract were identified by using HPTLC and HPLC/DAD system. Results : SF-chloroform fraction inhibited growth of PC-3 cells and changed the morphology of nucleus in a dose dependent manner. A dose-dependent apoptotic cell death was also measured by flow cytometry analysis. It was analyzed that SF-chloroform fraction contained more schizandrin than other fractions by using HPTLC and HPLC/DAD system. Conclusions : These results suggest that SF extract and schizandrin may be a potential chemotherapeutic agent for the control of PC-3 human prostate cancer cells.

건비익기법(健脾益氣法)의 종양치료활용(腫瘍治療活用)에 대(對)한 연구(硏究) (Study on Alternative Medicine in Cancer Therapy)

  • 강연이;김성훈;김동희
    • 혜화의학회지
    • /
    • 제10권2호
    • /
    • pp.1-10
    • /
    • 2002
  • In review of "invigorating spleen and supplementing qi" of clinical and experimental studies on malignant tumor, we obtained the conclusions as follows 1. Asthenic splenic qi is an important factor in mutation, occurrence and development of tumor. 2. The anti-tumor mechanism of "invigorating spleen and supplementing qi" is improvement of immune suveillance, controling cell proliferating period and enhancing body metabolism. 3. "Invigorating spleen and supplementing qi" is often used with "nourishing kidney" or "expelling pathogen" for treating cnacer. 4. In experimental studies, "invigorating spleen and supplementing qi" has effects on inhibiting occurrence and development of tumor, protecting mutation, inhibiting recurrence and metastasis, immune activity, enhancing metabolism, promoting bone marrow hemopoietic cell proliferation, increasing anti-tumor effect and protecting normal cells. 5. In clinical studies, "invigorating spleen and supplementing qi" has effects on prolonging the survival period of cancer patients, improving clinical symptoms and quality of life of cancer patients, degrading the side effects of western therapie(operation, chemotherapy and radiotherapy). 6. "Invigorating spleen and supplementing qi" is an extensive discipline of syndrome differentiation used to inhibit occurence, development, recurrence and metastasis.

  • PDF

이압요법이 항암화학요법을 받는 유방암 환자의 불안 및 수면에 미치는 효과 (Effects of Auricular Acupressure on Anxiety and Sleep among Patients Undergoing Chemotherapy for Breast Cancer)

  • 강미애;여형남
    • 보건의료산업학회지
    • /
    • 제13권3호
    • /
    • pp.81-92
    • /
    • 2019
  • Objectives: This study aimed to investigate the effects of auricular acupressure on anxiety and sleep among patients undergoing chemotherapy for breast cancer. Methods: A nonequivalent control group nonsynchronized design was employed. The experimental group received auricular acupressure on specific acupoints (shenmen, heart, kidney, subcortex), and the control group received auricular acupressure on helix 1, helix 2, helix 3, and helix 4 three times a day for three weeks. A total of 60 women were divided into an experimental (n=30) and control (n=30) group. Patient recruitment occurred between May and August 2019. The collected data were analyzed by a chi-square test, paired t-test, and independent t-tests using the SPSS 21.0 program. Results: There was a significant decrease in anxiety(t=4.61, p=<.001) and increase in sleep(t=3.81, p=<.001) in the experimental group compared to the control group. Conclusions: The findings confirm that auricular acupressure is an effective nursing intervention to decrease anxiety felt by patients undergoing chemotherapy and to increase the quality of their sleep.