• 제목/요약/키워드: Mean platelet volume

검색결과 60건 처리시간 0.027초

Age Related Increase of Platelet Activation

  • Kim, Sang-Hwan;Im, Jee-Aee;Lee, Ji-Won;Lee, Duk-Chul
    • 대한의생명과학회지
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    • 제12권4호
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    • pp.337-341
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    • 2006
  • Platelets clearly play an important role in inflammatory responses. In this study, we aimed to evaluate the relationship between aging and platelet activation. A total number of 799 persons (383 males and 416 females), who were apparently healthy and aged more than 20 years were recruited by a health promotion center in a community-based hospital in Seoul, Korea. We collected material data about their medical history and health behavior. Platelet parameters including mean platelet component (MPC), mean platelet volume (MPV), and platelet component distribution width (PCDW) were determined within 1 hour after blood collection using the ADVIA 120 automated hematology analyzer. The MPC of the women ($27.2{\pm}1.2$) was significantly love. than that of the men ($27.5{\pm}1.3$). The MPC of all participants was found to decrease with increasing age (P<0.01). Study participants in their twenties had the highest MPC ($27.7{\pm}1.1$), followed by those in their thirties ($27.6{\pm}1.1$), forties ($27.4{\pm}1.3$), fifties ($27.2{\pm}1.3$), sixties ($27.2{\pm}1.2$) and seventies ($27.1{\pm}1.2$). Multiple regression analysis showed that aging and gender were related with MPC after adjusting for confounding factors, including age, gender, smoking habit, hypertension, diabetes, body mass index and total cholesterol level. The this study shows that aging is related to platelet activation. Future research will need to determine the implications of increased platelet activation with aging, especially regarding the increased incidence of cardiovascular diseases and related mortalities that occur in older age groups.

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Count of platelet and mean platelet volume score: serologic prognostic factor in patients with oral squamous cell carcinoma

  • Park, Jae Woo;Kim, Chul-Hwan;Ha, Yong Chan;Kim, Moon Young;Park, Sung Min
    • Journal of the Korean Association of Oral and Maxillofacial Surgeons
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    • 제43권5호
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    • pp.305-311
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    • 2017
  • Objectives: TNM staging, especially for lymph node metastasis, is the scoring system most widely used among prognostic factors for cancer survival. Several biomarkers have been studied as serologic markers, but their specificity is low and clinical applications are difficult. This study aimed to establish a scoring system for patients with oral squamous cell carcinoma (OSCC) using platelet (PLT) and mean platelet volume (MPV) levels measured postoperatively and to evaluate their significance as prognostic factors. Materials and Methods: We studied 40 patients admitted to the Department of Oral and Maxillofacial Surgery of Dankook University Hospital who were diagnosed with primary OSCC histopathologically between May 2006 and May 2012. Clinical pathological information obtained from the medical records of each patient included age, sex, height, weight, tumor location, degree of differentiation, tumor diameter, lymph node metastasis, TNM stage, and other test values including white blood cell, MPV, PLT, C-reactive protein (CRP), and albumin obtained through a test conducted within 7 days before surgery. Count of platelet (COP)-MPV Score: Patients with both PLT and MPV values below the cut-off values were defined as score 0 (group A). Patients with at least one of the two higher than the cut-off value were defined as score 1 (group B). Results: Univariate analyses showed N-metastasis, COP-MPV (A vs B), PLT, platelet-lymphocyte ratio, and CRP were statistically significant prognostic factors. A multivariate Cox proportional hazards model showed N-metastasis (hazard ratio [HR] 6.227, P=0.016) and COP-MPV (A vs B) (HR 18.992, P=0.013) were independent prognostic factors with a significant effect on survival. Conclusion: COP-MPV score is a simple and cost-effective test method and is considered a more effective prognostic factor than other considered factors in predicting the prognosis of OSCC patients.

Diagnostic Power of Blood Parameters as Screening Markers in Gastric Cancer Patients

  • Pietrzyk, Lukasz;Plewa, Zbigniew;Denisow-Pietrzyk, Marta;Zebrowski, Remigiusz;Torres, Kamil
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권9호
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    • pp.4433-4437
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    • 2016
  • Background: Gastric cancer (GC) is the fifth most common cancer worldwide. Since development is usually asymptomatic, it is generally diagnosed at an advanced stage. The value of screening in patients with nonspecific symptoms for GC is controversial. Aim: The study aimed to evaluate whether hematological parameters (platelet count (PC), mean platelet volume (MPV), MPV/PC ratio, red blood cell distribution width (RDW), neutrophil to lymphocyte ratio (NLR), and platelet to lymphocyte ratio (PLR)) are useful markers to differentiate between gastric cancer patients and healthy individuals. Materials and Methods: Sixty-one patients with gastric cancer and sixty-one healthy individuals were enrolled to the survey and retrospective analysis of selected blood parameters were performed. Results: The mean values of PC, MPV, RDW, NLR, and PLR were significantly higher in GC patients compared to the control group. No statistical differences were observed in MPV/PC ratios. Likewise, no significant statistical differences were revealed in values of blood parameters among TNM stage groups. The RDW showed the highest diagnostic specificity and sensitivity. Conclusions: Hematological parameters: PC, MPV, RDW, NLR, PLR have diagnostic power and can discriminate patients with gastric cancer from patients without cancer. Blood parameters compared with clinical symptoms might alert physicians and patients and lead to performancce of upper gastrointestinal endoscopy, the gold standard in gastric cancer screening and therebly increase the early detection of cancer.

Mean Platelet Volume as a Prognostic Marker in Metastatic Colorectal Cancer Patients Treated with Bevacizumab-Combined Chemotherapy

  • Tunce, Tolga;Ozgun, Alpaslan;Emirzeoglu, Levent;Celik, Serkan;Bilgi, Oguz;Karagoz, Bulent
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권15호
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    • pp.6421-6423
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    • 2014
  • Background: Recent studies have revealed a prognostic impact of the MPV (mean platelet volume)/platelet count ratio in terms of survival in advanced non-small cell lung cancer. However, there has been no direct analysis of the survival impact of MPV in patients with mCRC. The aim of the study is to evaluate the pretreatment MPV of patients with metastatic and non-metastatic colorectal cancer (non-mCRC) and also the prognostic significance of pretreatment MPV to progression in mCRC patients treated with bevacizumab-combined chemotherapy. Materials and Methods: Fifty-three metastatic and ninety-five non-metastatic colorectal cancer patients were included into the study. Data on sex, age, lymph node status, MPV, platelet and platecrit (PCT) levels were obtained retrospectively from the patient medical records. Results: The MPV was significantly higher in the patients with mCRC compared to those with non-mCRC ($7.895{\pm}1.060$ versus $7.322{\pm}1.136$, p=0.013). The benefit of bevacizumab on PFS was significantly greater among the patients with low MPV than those with high MPV. The hazard ratio (HR) of disease progression was 0.41 (95%CI, 0.174-0.986; p=0.04). In conclusion, despite the retrospective design and small sample size, MPV can be considered a prognostic factor for mCRC patients treated with bevacizumab-combined chemotherapy.

패혈증에 이환된 저출생체중아(≤2,000 g)에서 혈소판수치와 평균혈소판용적의 변화 (Platelet count and mean platelet volume in low birth weight infants (≤2,000 g) with sepsis)

  • 이완수;조진영;유승택;이창우;최두영;김종덕;오연균
    • Clinical and Experimental Pediatrics
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    • 제50권7호
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    • pp.643-648
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    • 2007
  • 목 적 : 신생아중환자실에서 미숙아들의 치료 중 흔히 패혈증을 경험하며 중요한 합병 소견으로 혈소판 감소증을 볼 수 있다. 최근 보고에 의하면 그람 음성균이나 진균에 의한 감염에서 그람 양성균에 비해 혈소판 감소증이 더 심하다는 보고가 있다. 본 연구자들은 패혈증을 나타낸 원인균들 사이에 혈소판 수치의 변화 정도와 패혈증 시 평균 혈소판 용적의 변화를 비교해 보고자 본 연구를 시행하였다. 방 법 : 2001년 1월부터 2006년 6월까지 원광대학교 의과대학병원 신생아 중환자실에 입원하여 치료받은 2,000 g 이하의 미숙아중 패혈증으로 확진된 미숙아 36명을 대상으로 의무기록지를 이용하여 후향적으로 조사 분석하였다. 환아들은 원인균에 따라 그람 양성균군($1,521{\pm}309g,\;31.3{\pm}2.9$, 15명), 그람 음성균군($1,467{\pm}290g,\;30.6{\pm}3.6$, 17명), 진균군($1,287{\pm}205g,\;30.0{\pm}3.9$, 4명)으로 분류하고 이들의 패혈증 증상 출현 3-5일전 시기, 패혈증 증상 출현 시기, 최저 혈소판수치를 보인 시기의 혈소판수치를 각 군별로 비교하였으며, 전체 환아에서 패혈증 출현 시 평균혈소판용적의 변화를 조사하였다. 결 과 : 패혈증을 일으킨 원인균별 분포는 그람음성균 17례(47.2%), 그람양성균 15례(41.7%), 진균 4례(11.1%)였으며, 이중 표피포도알균이 9례(25%)로 가장 많았고, 혈소판 감소증은 $100{\times}10^9/L$이하를 기준 시 88.9%, $150{\times}10^9/L$이하를 기준 시 94.4%이었으며, 혈소판 감소가 $100{\times}10^9/L$ 이하를 보인 빈도는 그람 음성균군 전례로 양성균군 11례(73.3%)에 비해 의의 있게 많았다(P<0.05). 패혈증 증상 출현시기의 혈소판 수치는 그람 양성균군에 비해 그람 음성균군에서 의의 있게 감소하였으며(P<0.05), 진균군에서도 감소하였으나 의의는 없었다. 최저 혈소판 수치를 보인 시기의 혈소판 수치도 그람 양성균군에 비해 그람 음성균군에서 의의있게 감소하였으며(P<0.01), 진균군에서도 감소하였으나 의의는 없었다. 최저 혈소판 수치를 보인 시기에 도달하는데 걸리는 시간은 원인균별 사이에 차이가 없었으며, 혈소판 수치가 $100{\times}10^9/L$ 이하, $150{\times}10^9/L$ 이하가 유지되었던 시간도 그람 음성균군에서 약간 길었으나 의의는 없었다. 혈소판 감소율의 비교에서는 패혈증 증상 출현 시기, 최저 혈소판수치를 보인 시기 모두 그람 양성균군에 비해 그람 음성균군에서 의의있게 감소하였으며(P<0.05), 진균군에서도 감소하였으나 의의는 없었다. 평균 혈소판 용적은 패혈증 증상 출현 전에 비해 최저 혈소판수치를 보인 시기에 의의 있게 증가 하였다(P<0.05). 결 론 : 그람 음성균에 의한 패혈증에서 그람양성균보다 혈소판 감소가 더 심하였다. 그리고 진균감염에 의한 패혈증에서도 그람양성균에 비해 혈소판 감소를 보였으나 의의는 없었으며 이는 대상 환아가 적기 때문으로 사료되었다. 또한, 패혈증시 평균혈소판용적의 증가를 보여 이러한 소견들은 미숙아들의 패혈증 진단과 치료에 도움이 되리라 생각된다.

May the Platelet to Lymphocyte Ratio be a Prognostic Factor for Epithelial Ovarian Cancer?

  • Kokcu, Arif;Kurtoglu, Emel;Celik, Handan;Tosun, Migraci;Malatyalıoglu, Erdal;Ozdemir, Ayse Zehra
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권22호
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    • pp.9781-9784
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    • 2014
  • Background: The study aimed to evaluate changes in hematologic parameters, including white blood cell, platelet count, platelet indices, the platelet to lymphocyte and neutrophil to lymphocyte ratios in patients with early and advanced stages of epithelial ovarian cancers. Materials and Methods: The study included 100 patients with epithelial ovarian cancer who underwent primary staging exploratory laparotomy. Preoperative hematologic parameters, tumor histopathologic type, grade, stage and serum CA-125 levels were retrospectively analyzed. These parameters were compared between the patients with early (stage I-II) and advanced (stage III-IV) ovarian cancer. Results: White blood cell count and platelet indices, including mean platelet volume, platelet distribution width and platelet crit did not show a statistically significant difference between groups with early and advanced ovarian cancer. However, the neutrophil to lymphocyte ratio, platelet count, the platelet to lymphocyte ratio and CA-125 level showed a statistically significant difference between the two groups (p<0.05, p<0.01, p<0.001, p<0.01 respectively). Conclusions: It was found that the neutrophil to lymphocyte ratio, platelet count and the platelet to lymphocyte ratio increased with the increasing stage of ovarian cancer. Furthermore, it was seen that the platelet to lymphocyte ratio is an independent prognostic factor related to the stage of epithelial ovarian cancer.

소아 특발성 혈소판 감소성 자반증 환아에서 치료경과에 따른 평균 혈소판용적과 혈소판용적 분포폭의 변동 (Changes in Mean Platelet Volume and Platelet Distribution Width after Therapy in Childhood Idiopathic Thrombocytopenic Purpura)

  • 김종태;이경원;김순남;김문규
    • Clinical and Experimental Pediatrics
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    • 제45권4호
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    • pp.505-511
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    • 2002
  • 목 적 : 소아 ITP 환아에서 진단 및 IVIg 치료시의 MPV 및 PDW의 변동을 관찰하여 정상아과 비교하고자 하였고 진단 및 초기 치료시의 MPV와 PDW값 분석을 통하여 급성과 만성 ITP의 구분이 예측 가능한지와 면역글로불린에 대한 초기반응이 예측 가능한지를 알아보고자 하였다. 방 법 : 1995년 12월부터 2001년 5월까지 아주대학교병원 소아과에서 ITP로 진단 받고 치료 중이거나 치료 후 추적 관찰 중인 환아 71명을 대상으로 하였다. 치료는 IVIg를 하루에 400 mg/kg 용량으로 5일간 투여하였고 Coulter Counter STKS를 사용하여 매일 말초혈액검사를 시행하여 혈소판, MPV, PDW 를 확인하였고 치료 후 주기적으로 추적검사 하였다. 정상 대조군으로 38명의 정상 환아의 MPV와 PDW를 측정하였다. 급성 ITP는 치료 후 혈소판수가 $100,000/{\mu}L$ 이상으로 증가되어 유지된 경우로, 만성 ITP는 혈소판수가 발병 6개월내에 일시적인 증가가 있을 지라도 발병 후 6개월 이상 경과 중에 $100,000/{\mu}L$ 이상으로 유지되지 않는 경우로 정의하였다. 또한 혈소판 수치가 치료 5일째 $100,000/{\mu}L$ 이상 증가된 환아들을 A군, $100,000/{\mu}L$ 이하인 환아들을 B군으로 정의하여 위와 같은 MPV, PDW를 분석하였다. 동기간 중 ITP로 내원 하였으나 IVIg 투여 없이 호전된 환아의 MPV, PDW 수치를 IVIg 치료군과 비교하였다. 결 과: 급성 ITP는 53례, 만성 ITP는 18례로 총 71례였으며 진단시 혈소판수는 $20,000/{\mu}L$ 이하가 65례(91.5%)로 대다수를 차지하였다. ITP 환아의 진단 당시 MPV와 PDW의 평균값은 6.77 fL, 15.16%로 정상 대조군의 7.29 fL, 15.96% 보다 의의 있게 낮았고(P<0.05), 만성보다는 급성에서, A군보다는 B군에서 MPV와 PDW값이 낮았으나 통계적으로 유의한 차이는 없었다. 전체 환아에 대해서 치료 후 1일째 MPV가 의의 있게 증가하고 그 이후 유지되었고 급성과 만성으로 나눠서 봤을 때 두 군간에 의의 있는 차이는 없었다. 하지만 IVIg 치료의 반응에 따라 구분하여 보면 A군에서 치료 후 1일째 MPV가 급격히 증가 후 감소하는 경향을 보였으나 B군은 치료 후 4일째까지 천천히 증가하는 양상을 보였다(P<0.05). 전체환아에서 PDW는 치료 후 2일에 걸쳐 의의 있게 증가한 후 유지되는 경향을 보였다. 정상 대조군에서는 혈소판과 MPV간에 의의 있게 반비례 관계를 보였으나(r=-0.415, P<0.05) ITP 환아의 진단시에는 혈소판과 MPV간에 의의 있게 비례 관계를 나타내었다(r=0.646, P<0.05). 동기간에 자연 회복된 9례의 ITP 환아와 IVIg로 치료한 대상 환아를 비교해 봤을 때 자연 회복된 환아들은 진단시 MPV가 증가되어 있었고 혈소판이 증가되면서 점차로 감소되는 양상을 보였다. 결 론 : 소아 ITP 환아에서 IVIg 치료 후에 혈소판 증가와 함께 MPV와 PDW는 증가하였다. IVIg 치료후 MPV와 PDW를 관찰하는 것이 치료 초기에 급성과 만성을 예측하는 데는 유용하지 않으나 MPV는 초기 치료 반응의 예측인자로서 유용한 것으로 사료된다. 본 연구결과에서 관찰된 소아 ITP 환아에서 진단시 MPV와 PDW가 정상 대조군에 비해 낮은 것과 IVIg 투여 후의 MPV 및 PDW의 증가에 대해서는 향후 더욱 광범위한 연구를 통해 더 많은 논의를 거쳐야 할 것이다.

Mean Platelet Volume Could be a Possible Biomarker for Papillary Thyroid Carcinomas

  • Baldane, Suleyman;Ipekci, Suleyman H;Sozen, Mehmet;Kebapcilar, Levent
    • Asian Pacific Journal of Cancer Prevention
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    • 제16권7호
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    • pp.2671-2674
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    • 2015
  • Thyroid cancer is the most prevalent endocrine cancer and is evident in nearly 5% of thyroid nodules. The correlation between mean platelet volume (MPV) and many other cancer types has been investigated previously. However, the correlation between papillary thyroid carcinoma (PTC) and MPV has not yet been studied in detail. The aim of this study was to examine whether MPV would be a useful inflammatory marker to differentiate PTC patients from cases of benign goiter and healthy controls. Preoperative MPV levels in patients with PTC were found to be significantly higher when compared with benign goiter patients and healthy controls ((respectively, 8.05 femtoliter (fl), 7.57 fl, 7.36 fl, p=0.001). After surgical treatment of PTC patients, a significant decrease in MPV levels was seen (8.05 fl versus 7.60 fl, p=0.005). ROC analysis suggested 7.81 as the cut-off value for MPV (AUC=0.729, sensitivity 60%, specificity 80%). In conclusion, maybe changes in MPV levels can be used as an easily available biomarker for monitoring the risk of PTC in patients with thyroid nodules, enabling early diagnosis of PTC.

건강성인의 혈구 참고치 산정 (Hematological Reference Values in the Healthy Adults)

  • 김영진;현명수;이현우
    • Journal of Yeungnam Medical Science
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    • 제8권1호
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    • pp.154-165
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    • 1991
  • 1) 건강한 성인 2823명을 대상으로 자동혈구 계산기인 Coulter Counter Model S plus II를 이용하여 본원의 참고치를 설정하였다. 산출된 참고치는 기기의 설명서에 제시되어 임상 의사들이 사용하고 있는 참고치와 차이가 있었다. 2) 국내의 보고들과 비교해 볼 때 본원의 참고치와 대체로 비등하였고 기기의 설명서에 제시된 참고치와는 차이가 있으므로 본원의 참고치률 설정하여 사용하여야 하겠다. 3) 결과는 다음과 같다. (1) 백혈구 수는 남자 $6.800{\pm}2.680(2SD)/{\mu}l$, 여자 $5.950{\pm}2.380(2SD)/{\mu}l$ 이었다. (2) 적혈구 수는 남자 $428{\pm}60(2SD){\times}10^4/{\mu}l$, 여자 $415{\pm}56(2SD){\times}10^4/{\mu}l$ 이었다. (3) 혈색소량은 남자 $15.4{\pm}1.8(2SD)g/dL$, 여자 $13.0{\pm}1.6(2SD)g/dL$ 이었다. (4) 적혈구 용적은 남자 $45.3{\pm}5.0(2SD)%$, 여자 $38.2{\pm}4.6(2SD)%$ 이었다. (5) 평균 적혈구 용적은 남자 $93.8{\pm}5.8(2SD)fL$, 여자 $92.2{\pm}7.4(2SD)fL$ 이었다. (6) 평균 적혈구 혈색소량은 남자 $31.8{\pm}2.2(2SD)pg$, 여자 $31.4;{\pm}2.8(2SD)pg$ 이었다. (7) 평균 적혈구 혈색소농도는 남자 $34.0{\pm}1.2(2SD)%$, 여자 $33.9{\pm}1.2(2SD)%$ 이었다. (8) 적혈구 분포 폭은 남자 $12.7{\pm}1.0(2SD)%$, 여자 $12.6{\pm}1.4(2SD)%$ 이었다. (9) 혈소판 수는 남자 $242.9{\pm}87.8(2SD){\times}10^4/{\mu}l$, 여자 $242.2{\pm}89.0(2SD){\times}10^4/{\mu}l$ 이었다. (10) 혈소판 용적은 남자 $0.201{\pm}0.076(2SD)%$, 여자 $0.204{\pm}0.076(2SD)%$ 이었다. (11) 평균 혈소판 용적은 남자 $8.20{\pm}1.70(2SD)fL$, 여자 $8.36{\pm}1.82(2SD)fL$ 이었다. (12) 혈소판 분포 폭은 남자 $16.1{\pm}0.8(2SD)%$, 여자 $16.0{\pm}0.8(2SD)%$ 이었다.

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한국재래산양 신생자축의 혈액학치 변화에 관한 연구 (Hematological values of Korean indigenous neonatal goats)

  • 조광현;박용수;김성국;어경연;곽동미;권오덕
    • 한국동물위생학회지
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    • 제40권1호
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    • pp.7-14
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    • 2017
  • The present study was undertaken to clarify the changes in hematological values of Korean indigenous goats according to age. Blood samples were collected from 16 goats (5 females and 11 males) from birth up to the age of 6 weeks and the levels of various hematological values were analyzed. The body weight was increased from 2.54 kg at birth to 6.41 kg at 6 weeks age. The erythrocytes (RBC) counts and hemoglobin (Hb) values of goats were decreased at 2 weeks after birth, and increased gradually from 4 weeks after birth. The hematocrit (Ht) values were decreased until 4 weeks after birth, and increased at 6 weeks after birth. The mean cell volume (MCV) and mean cell hemoglobin (MCH) were decreased until 6 weeks after birth. The mean cell hemoglobin concentration (MCHC) was increased slightly from 2 weeks after birth. The red cell distribution width (RDW) was increased significantly at 2 weeks after birth, and decreased from 4 weeks after birth. The platelet (PLT) counts were increased significantly from 2 weeks after birth. The mean platelet volume (MPV) was decreased at 2 weeks after birth, and increased gradually from 4 weeks after birth. The total white blood cell (WBC) counts and the mean absolute numbers of neutrophil, lymphocyte, monocyte and eosinophil were increased from 2 weeks after birth. In conclusion, the data obtained from this study may be valuable as a standard for interpreting results of hematological analyses in Korean indigenous goats.