• 제목/요약/키워드: DR6

검색결과 717건 처리시간 0.032초

Ruminal Protein Degradation Characteristics of Cell Mass from Lysine Production

  • Seo, S.;Kim, H.J.;Lee, S.Y.;Ha, Jong K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제21권3호
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    • pp.364-370
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    • 2008
  • Chemical analysis and in vitro studies were conducted to investigate the nutritive value for ruminants of cell mass from lysine production (CMLP) which is a by-product of the lysine manufacturing process. Proximate analysis, protein fractionation, and in vitro protein degradation using protease from Streptomyces griseus and strained ruminal fluid were carried out to estimate ruminal protein degradability of CMLP with two reference feedstuffs-soybean meal (SBM) and fish meal (FM). Amino acid composition and pepsin-HCl degradability were also determined to evaluate postruminal availability. CMLP contained 67.8% crude protein with a major portion being soluble form (45.4% CP) which was composed of mainly ammonium nitrogen (81.8% soluble CP). The amount of nucleic acids was low (1.15% DM). The total amount of amino acids contained in CMLP was 40.60% DM, which was lower than SBM (47.69% DM) or FM (54.08% DM). CMLP was composed of mainly fraction A and fraction B2, while the protein fraction in SBM was mostly B2 and FM contained high proportions of B2 and B3 fractions. The proportion of B3 fraction, slowly degradable protein, in CP was the highest in fish meal (23.34%), followed by CMLP (7.68%) and SBM (1.46%). CMLP was degraded up to 51.40% at 18 h of incubation with Streptomyces protease, which was low compared to FM (55.23%) and SBM (83.01%). This may be due to the insoluble portion of CMLP protein being hardly degradable by the protease. The in vitro fermentation by strained ruminal fluid showed that the amount of soluble fraction was larger in CMLP (40.6%) than in SBM (17.8%). However, because the degradation rate constant of the potentially degradable fraction of CMLP (2.0%/h) was lower than that of SBM (5.8%/h), the effective ruminal protein degradability of CMLP (46.95%) was slightly lower than SBM (53.77%). Unavailable fraction in the rumen was higher in CMLP (34.0%) compared to SBM (8.8%). In vitro CP degradability of CMLP by pepsin was 80.37%, which was lower than SBM (94.42%) and FM (89.04%). The evaluation of protein degradability using different approaches indicated that soluble protein in CMLP may supply a large amount of ammonia in the rumen while insoluble protein can be by-passed from microbial attacks due to its low degradability. The results from this study suggest that CMLP can be used as a protein supplement to ruminants for supplying both non-protein nitrogen to rumen microbes and rumen undegradable protein to the host animal.

Effect of Pioglitazone on Production of Regulated upon Activation Normal T-cell Expressed and Secreted (RANTES) and IVF Outcomes in Infertile Women with Endometriosis

  • Kim, Chung-Hoon;Lee, You-Jeong;Kim, Jun-Bum;Lee, Kyung-Hee;Kwon, Su-Kyung;Ahn, Jun-Woo;Kim, Sung-Hoon;Chae, Hee-Dong;Kang, Byung-Moon
    • 한국발생생물학회지:발생과생식
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    • 제17권3호
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    • pp.207-213
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    • 2013
  • This study was performed to investigate the effect of peroxisome proliferators activated receptor-${\gamma}$ (PPAR-${\gamma}$) ligand, pioglitazone, on production of regulated upon activation normal T-cell expressed and secreted (RANTES) and in vitro fertilization (IVF) outcome in infertile patients with endometriosis. Sixty-four infertile patients with stage III or IV endometriosis undergoing IVF were randomly allocated to the study or the control group. The long protocol of GnRH agonist (GnRH-a) was used for controlled ovarian stimulation (COS) in all patients. Patients in the study group were treated with pioglitazone at a dose of 15 mg/day orally from the starting day of GnRH-a treatment to the day of hCG injection. Blood samples were drawn for serologic assay of RANTES on the first day of GnRH-a treatment and the day of hCG injection. There were no differences between the study and control groups in patient characteristics. There were also no differences between the two groups in COS duration, and the numbers of retrieved oocytes, fertilized oocytes and embryos transferred. The clinical pregnancy rate per cycle was higher in the study group, but this difference was not statistically significant. However, embryo implantation rate was significantly higher in the study group of 12.5% compared with 8.6% in the control group (P<0.05). The serum RANTES levels after pioglitazone treatment were significantly lower than those before pioglitazone treatmen in the study group (P<0.05). Our data suggest that pioglitazone treatment can suppress RANTES production and improve the embryo implantation rate in patients with endometriosis undergoing IVF.

2009년 유행 신종인플루엔자 A(H1N1)의 한약 및 기타 비전형적 치료에 대한 고찰 (An Overview of the Herbal Remedies and other Non-conventional Therapies for 2009 Novel Influenza A(H1N1))

  • 선승호;장인수;백유상;배선재;한창호
    • 대한한방내과학회지
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    • 제30권3호
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    • pp.558-570
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    • 2009
  • Background : Since March 2009, when the first patient of novel influenza A (H1N1) was reported, many deaths have occurred in North and Central America. The start of the 2009 influenza pandemic was declared by WHO Director-General Dr. Margaret Chan on 11 June 2009, and the level of influenza pandemic alert raised from phase 5 to phase 6. There was no vaccine yet developed, and many experts worried that the novel H1N1 virus could kill as many or more as did the influenza pandemic in 1918-1919. Objective : To evaluate the possibility of treatment for 2009 novel influenza A (H1N1) using herbal remedies and other non-conventional therapies. Methods : We researched the clinical studies for novel H1N1 influenza virus-related herbal medicine or non-conventional medicine treatment using internet search engines including PubMed and CNKI. In addition, we reviewed many reports and clinical practice guidelines (CPG) for influenza A (H1N1). Results : Two case series were selected after reviewing 701 papers, and two CPG published by the Chinese government and Jilin province identified. They reported that the clinical symptoms were no more significant than seasonal influenza, and the condition of patients more than 45 years old was milder than those less than 45 years old. There are no patients with gastric problems, and oseltamivir has been used at the same time in all patients. Conclusion : The efficacy and effectiveness of herbal medicine and other non-conventional treatments for the novel influenza A (H1N1) is questionable, and more studies are needed to draw a firm conclusion. However, in the severe acute respiratory syndrome (SARS) experience in 2002/2003, it was demonstrated that herbal medicine can relieve all symptoms of SARS patients, promote absorption of lung inflammation, improve the degree of blood oxygen saturation, regulate immunological functions, reduce the required dosage of glucocorticoid and other medicines, and reduce case fatality rate. In light of the current situation that there is no vaccine or conventional treatment yet available, the study of herbal medicine and other non-conventional therapies are also necessary for appropriate evaluation.

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The Use of Near Infrared Reflectance Spectroscopy (NIRS) for Broiler Carcass Analysis

  • Hsu, Hua;Zuidhof, Martin J.;Recinos-Diaz, Guillermo;Wang, Zhiquan
    • 한국근적외분광분석학회:학술대회논문집
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    • 한국근적외분광분석학회 2001년도 NIR-2001
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    • pp.1510-1510
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    • 2001
  • NIRS uses reflectance signals resulting from bending and stretching vibrations in chemical bonds between carbon, nitrogen, hydrogen, sulfur and oxygen. These reflectance signals are used to measure the concentration of major chemical composition and other descriptors of homogenized and freeze-dried whole broiler carcasses. Six strains of chicken were analyzed and the NIRS model predictions compared to reference data. The results of this comparison indicate that NIRS is a rapid tool for predicting dry matter (DM), fat, crude protein (CP) and ash content in the broiler carcass. Males and females of six commercial strain crosses of broiler chicken (Gallus domesticus) were used in this study (6$\times$2 factorial design). Each strain was grown to 16 weeks of age, and duplicate serial samples were taken for body composition analysis. Each whole carcass was pressure-cooked, homogenized, and a representative sample was freeze-dried. Body composition determined as follows: DM by oven dried method at 105$^{\circ}C$ for 3 hours, fat by Mojonnier diethyl ether extraction, CP by measuring nitrogen content using an auto-analyzer with Kjeldhal digest and ash by combustion in a muffle furnace for 24 hour at 55$0^{\circ}C$. These homogenized and freeze-dried carcass samples were then scanned with a Foss NIR Systems 6500 visible-NIR spectrophotometer (400-2500nm) (Foss NIR Systems, Silver Spring, MD., US) using Infra-Soft-International, ISI, WinISl software (ISI, Port Matilda, US). The NIRS spectra were analyzed using principal component (PC) analysis. This data was corrected for scatter using standard normal “Variate” and “Detrend” technique. The accuracy of the NIRS calibration equations developed using Partial Least Squares (PLS) for predicting major chemical composition and carcass descriptors- such as body mass (BM), bird dry matter and moisture content was tested using cross validation. Discrimination analysis was also used for sex and strain identification. According to Dr John Shenk, the creator of the ISI software, the calibration equations with the correlation coefficient, $R^2$, between reference data and NIRS predicted results of above 0.90 is excellent and between 0.70 to 0.89 is a good quantifying guideline. The excellent calibration equations for DM ($R^2$= 0.99), fat (0.98) and CP (0.92) and a good quantifying guideline equation for ash (0.80) were developed in this study. The results of cross validation statistics for carcass descriptors, body composition using reference methods, inter-correlation between carcass descriptors and NIRS calibration, and the results of discrimination analysis for sex and strain identification will also be presented in the poster. The NIRS predicted daily gain and calculated daily gain from this experiment, and true daily gain (using data from another experiment with closely related broiler chicken from each of the six strains) will also be discussed in the paper.

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Total Dietary Fiber and Mineral Absorption

  • Gordon, Dennis-T.
    • Journal of Nutrition and Health
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    • 제25권6호
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    • pp.429-449
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    • 1992
  • The consumption of foods rich in TDF should not be associated with impaired mineral absorp-tion and long-term mineral status. In surveys of populations consuming high amounts of TDF e.g Third World populations and vegetarinas gross deficiencies in mineral nutrition have not been noted. If mineral status is low among these groups it is most likely caused by the inadequacy or imbalance of the diet and not by the TDF. The key word is interaction which should be inte-rpreted in dietary imbalances that produce nut-rient deficiencies. There are no strong data to support the concept that TDF inhibits mineral absorption through a binding chelation mechanism. Limited data sug-gest that positively charged groups on polymers such as chitosan and cholestyramine will decrease iron absorption in humans and animals. Because TDF does not contain positively charged groups future research should be directed at the possible role of protein consumed along with TDF and the combination of effects on mineral nutrition Phytic acid is acknowledged as a potent chela-tor of zinc. However its association with zinc and its propensity to lower Zn bioavaiability may enhance the absorption of other elements notably copper and iron. The importance of interactions among nutrients including TDF will gain addi-tional attention in the scientific community. Soluble and insoluble dietary fiber function di-fferently in the intestine. Insoluble fibers accele-rate movement through the intestine. Soluble die-tary fibers appear to regulated blood concentra-tions of glucose and cholesterol albeit by some unknown mechanism. In creased viscosity produ-ced by the SDF in the intestine may provide an explanation of how this class of polymers affects plasma glucose cholesterol and other nutrients. Employing a double-perfusion technique in the rat we demonstrated that viscosity produced by SDF will delay transfer of zinc into the circulatory system. This delayed absorption should not be interpreted as decreased utilization. A great deal of additional research is required to prove the importance of luminaly viscosity produced by SDF on slowing nutrient absorption or regulating bllod nutrient homeostasis. Increased intake of TDF in the total human diet appears desirable. A dietary intake of 35g/day should not be considered to have a negative effect on mineral absorption. It is important to educate people that an intake of more than 35g TDF/day may cause an imbalance in the diet that can adve-rsely affect mineral utilization. Acknowledgments. Appreciation is given to Dr. George V. Vahouny(deceased) who was intense a great competitor in and out of science and who gave the author inspiration Portions of this work were supported by the University of Missouri Ag-ricultural Station and by a grant from the Univer-rch Support Grant RR 07053 from the National Institutes of Health. Contribution of the Missouri Agriculatural Experiments Station Journal Series No. 10747.

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Risk Factors for Stage IV Breast Cancer at the Time of Presentation in Turkey

  • Uyeturk, Ummugul;Tatli, Ali Murat;Gucuk, Sebahat;Oksuzoglu, Berna;Ulas, Arife;Avci, Nilufer;Ozbay, Mehmet Fatih;Gunduz, Seyda;Akinci, Muhammed Bulent;Salim, Derya Kivrak;Sonmez, Ozlem Uysal;Akdag, Fatma;Ergenc, Hasan
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권12호
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    • pp.7445-7449
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    • 2013
  • Background: Breast cancer (BC) is the one of the most common cancers in women. It is also a leading cause of death. Unfortunately, some patients initially present with distant metastases and are diagnosed with stage IV disease that is nearly always, by then, incurable. This retrospective analysis investigated the risk factors for stage IV BC that may underlie such late presentation. Materials and Methods: In all, 916 patients with BC who visited the medical oncology polyclinic of eight different centres in Turkeybetween December 2011 and January 2013 were analysed. Results: A total of 115 patients (12.6%) presented with stage IV disease. In univariate analysis; to comparing these with patients at other stages, no statistical difference was found for median diagnosis age or age at menarche (p=0.611 and p=0.820), whereas age at menopause and age at first live birth were significant (p=0.018 and p=0.003). No difference was detected in terms of accompanying diseases, use of oral contraceptives and hormone replacement therapy, smoking, alcohol consumption and the rate of family history of BC between the patients (p=0.655, p=0.389, p=0.762, p=0.813, p=0.229, p=0.737). However, screening methods were employed less often, the rate of illiteracy was higher, and the rate of other cancers was higher in patients with stage IV BC (p=0.022, p=0.022, p=0.018). No statistical difference was observed between the patients in terms of tumour histopathology, and status of oestrogen receptor, progesterone receptor, or human epidermal growth factor-2 receptor (p=0.389, p=0.326, p=0.949, p=0.326). Grade 3 tumours were more frequent in patients with stage IV disease (p<0.001). On multivariate analysis, risk factors for stage IV breast cancer at the time of presentation were found to be age at first live birth and educational level (p=0.003 and p=0.047). Conclusions: Efforts should be made to perform mammography scans, in particular, at regular intervals through national training programs for all women, particularly those with family histories of breast and other types of cancer, and to establish early diagnosis of BC long before it proceeds to stage IV. Additionally, women's education had better be upgraded. In order to make women aware of BC, national education-programmes must be organised.

Deinococcus radiodurans RecA 단백질의 외가닥 DNA-의존성 ATPase 활성 분석 (Characterization of Single Stranded DNA-Dependent ATPase Activities of Deinococcus radiodurans RecA Protein)

  • 김종일
    • 미생물학회지
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    • 제43권4호
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    • pp.250-255
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    • 2007
  • Deinococcus radiodurans recA는 이 미생물의 방사선 저항성을 나타내는 표현형에 필수적이며 재조합성 DNA 수선 과정에 관여한다. 이 과정에서 RecA 단백질은DNA와 결합하여 반응의 활성 종인 RecA nucleoprotein 필라멘트를 형성한다. DNA-의존성 ATPase 활성과 함께, RecA 단배질의 외가닥 DNA 혹은 이중가닥 DNA와의 상호작용은 RecA 단백질이 관여하는 반응의 중심과정으로 이에 관한 분석을 시도하였다. D. radiodurans RecA 단배질은 DNA에 결합한 DNA-단백질 복합체만이 ATPase 활성을 나타내므로, ATP (혹은 dATP) 가수분해를 측정함으로써 RecA와 외가닥 DNA와의 상호작용 정도를 분석하였다. D. radiodurans RecA 단백질은 외가닥 DNA의 염기 구성의 이질성에 영향을 받았으며, homopolymer인 poly(dT)와의 상호작용에서 가장 높은 가수분해 활성을 보였다. Homopolymer인 합성 DNA-의존성 ATP 및 dATP의 가수분해는 pH 6.0과 9.0의 범위에서 다소 일정한속도로 일어났으며 최적 pH는 7.0과 7.5 사이였다. 외가닥 DNA-의존성 ATPase 활성은 염의 존재에 영향을 받아 KCl이 존재하면 다소 억제되나, K-glutamate가 존재하면 오히려 촉진되었다. RecA 단백질과 외가닥 DNA의 상호작용을 ATP 가수분해로 분석하였을 때 2 mM 이상의 magnesium 이온이 DNA 결합반응에 필요하였으며, 비교적 넓은 범위의 pH에서 외가닥 DNA와의 결합반응이 일어나며, 이러한 결합반응은 당량적인 비(1:3, RecA protein: DNA nucleotide)로 일어났다.

Facial 'Phi' Mask를 이용한 3급 부정교합 환자의 악교정수술 후 정면부 연조직의 변화 (Soft Tissue Change in Frontal View after Orthognathic Surgery for Class III Malocclusion: Analysis Using Facial 'Phi' Mask)

  • 허영민;김홍석;팽준영;홍종락;김창수
    • Maxillofacial Plastic and Reconstructive Surgery
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    • 제33권6호
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    • pp.490-496
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    • 2011
  • Purpose: Dr. Marquardt made the facial 'phi' mask using golden ratio. Most class III patients have bulky faces and want a smaller face. Using a facial golden mask, this study estimated and compared frontal photographs before and after operation for soft tissue measurement. The golden mask can be considered as a reference tool for facial esthetic analyses especially in lower face. Methods: Forty patients who had undergone orthognathic surgery at Samsung Medical Center from January 2006 to December 2009 were included in this study. These patients had Class III malocclusion. Lateral cephalometric radiographs, frontal clinical photos of pre-op and 8~12 month later post-op, and the facial 'phi' mask using golden ratio, were used for analysis. Reduction of the lower face area, occlusal plane changes, amounts of mandible setback and amounts of maxilla posterior impaction were estimated. Results: Lower facial reduction ratio and mandibular setback amounts were significantly different between 1-jaw and 2-jaw groups. Average postoperative changes in the area of lower face between bilateral sagittal split ramus osteotomy (BSSRO) and BSSRO combined maxilla posterior impaction were compared by using an independent simple t-test and $P$ value was 0.016. Therefore, the lower facial reduction ratio and mandibular setback amount were significantly different in maxilla posterior impaction. Conclusion: The two-jaw surgery group showed more reduction of the lower facial area than the 1-jaw surgery group. The amount of lower facial reduction was more related with the amount of mandibular setback. There was no significant relation in lower facial reduction with amount of maxilla posterior impaction, pre-op occlusal plane, post-op occlusal plane and the mandibular angle. A relationship between the change in the lower facial area and the amount of maxilla posterior impaction or the change of mandibular angle occlusal plane at pre-op could not be found because of the difference in the amount of setback between two groups.

한우 거세우의 계절 및 군 두수별 행동 특성 (Behavioral Characteristics on Season and Group Size of Hanwoo Steer)

  • 하재정;이용준;조재희;장원진;김연욱;;송영한
    • 한국축산시설환경학회지
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    • 제14권1호
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    • pp.9-14
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    • 2008
  • 본 시험은 두당 동일한 면적에서 비육전기 한우 거세우의 계절별 개체유지 및 사회적 행동 특성을 구명하고자 실시하였다. 15개월령의 한우 거세우 48두를 공시하여 두당 사육면적은 동일한 상태에서 각각 4두, 8두, 12두씩 2반복으로 시험을 수행하였으며, 행동측정은 15개월령, 17개월령, 19개월령에 분석하였으며, 그 결과를 요약하면 다음과 같다. 1. 섭식행동(FD) 중 섭취시간은 가을철에 가장 높게 나타났으며, 여름철이 가을, 겨울철 보다 유의적으로 짧은 섭취시간을 나타냈다(p<0.05). 2. 기립행동(ST)은 여름철이 유의적으로 가장 짧은 시간을 보였다(p<0.05). 3. 횡와행동(LD)은 여름철이 가을, 겨울철보다 유의적인 증가를 나타냈다(p<0.05). 4. 음수행동(DR)에서는 겨울철에 유의적으로 감소하였다(p<0.05). 5. 개체유지 행동 중 함기행동(SG)과 긁기행동(SR)은 여름철보다 겨울철에 유의적인 증가를 보였다(p<0.05). 6. 사육공간별 행동 특성에서는 마리당 평균시간에서 걷기행동(WA)이 군 두수가 가장 큰 그룹에서 유의적(p<0.05)으로 증가하였으며, 마리당 평균빈도에서는 군 두수가 가장 작은 그룹에서 자기몸핥기(SG)가 유의적(p<0.05)으로 증가하였다. 이상의 결과를 토대로 계절 및 군 두수별로 한우 거세우의 행동 특성이 각각 다른 것으로 나타났고, 향후 보다 더 많은 개체수를 대상으로 다양한 시험조건 하에서 시험을 수행한다면 시설 및 환경을 연계해 친환경 축사조건을 구명할 수 있을 것으로 판단된다.

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ABO and Rh Blood Groups and Risk of Colorectal Adenocarcinoma

  • Urun, Yuksel;Ozdemir, Nuriye Yildirim;Utkan, Gungor;Akbulut, Hakan;Savas, Berna;Oksuzoglu, Berna;Oztuna, Derya Gokmen;Dogan, Izzet;Yalcin, Bulent;Senler, Filiz Cay;Onur, Handan;Demirkazik, Ahmet;Zengin, Nurullah;Icli, Fikri
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권12호
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    • pp.6097-6100
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    • 2012
  • Background: Previous studies have observed an association between ABO blood group and risk for certain gastrointestinal malignancies, including pancreatic and gastric cancer. However, it is unclear whether there is such an association with colorectal cancer (CRC). In this study, possible relationships between ABO blood groups and Rh factor and KRAS status in patients with CRC were investigated. Materials and Methods: In 1,620 patients with CRC, blood group and Rh factor were examined and compared with the control group of 3,022,883 healthy volunteer blood donors of the Turkish Red Crescent between 2004 and 2011. The relationship of blood groups with wild type K-ras status was also evaluated. Results: Overall distributions of ABO blood groups as well as Rh factor were comparable between patients (45% A, 7.2% AB, 16.4% B, 31.4% O, and 87.2% Rh+) and controls (42.2% A, 7.6% AB, 16.3% B, 33.9% O, and 87.7% Rh+) (p=0.099). However, there were statistically significant difference between patients and controls with respect to O vs. non O blood group (p=0.033) and marginally significant difference for A vs. non-A blood group (p=0.052). Among patients, the median age was 62 (range 17-97), 58.1% were male. There were no statistically significant differences respect to sex and K-ras status. Conclusion: In present study, the ABO/Rh blood groups were statistically significantly associated with the risk of CRC. There were no relationship between K-ras status and ABO blood group and Rh factor. However further studies with larger numbers of patients are needed to establish the role of blood groups and to define t he mechanisms by which ABO blood type affect CRC.