International Journal of Current Research and Review
ISSN: 2231-2196 (Print)ISSN: 0975-5241 (Online)
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IJCRR - Vol 12 Issue 09, May, 2020

Pages: 05-09

Date of Publication: 04-May-2020


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A Study of Platelet Parameters as a Novel Marker of Severity of Inflammation in Patients with Chronic Obstructive Pulmonary Disease

Author: Dipti Mohapatra, Ranita Sahana, Priyadarshini Behera, Manasi Behera

Category: Healthcare

Abstract:Introduction: Chronic obstructive pulmonary disease (COPD) is one of the leading causes of death worldwide, characterised by both systemic as well as pulmonary inflammation. During an acute exacerbation, the inflammatory pathways are unregulated to a greater extent and may also precipitate a critical cardiovascular event. Platelet parameters like platelet count, Mean platelet volume (MPV) and platelet distribution width (PDW) are markers of platelet activation and also has been associated with various inflammatory conditions.
Aim of the Study: To find out the role of Platelet Parameters in COPD and to establish the relationship between the severity of COPD with the Platelet Parameters and to find out whether the platelet parameters can be a useful prognostic tool that will help the therapeutic target in COPD.
Material and Methods: Forty COPD patients who visited Pulmonary Medicine OPD during the study period, were included in the study. COPD patients were diagnosed by spirometry and classified according to the GOLD's criteria.The results of the Spirometry was compared with the different platelet parameters like platelet count, mean platelet volume and platelet distribution width to establish the probable role of platelets in the severity of COPD.
Result and Conclusion: It was concluded from the study that as the disease worsens, the number of platelets increase and this result is associated with spirometric parameters. The MPV and PDW also increased with the severity of disease in patients with COPD.So, the platelet parameters can be used as a simple, quick, tool to predict the severity in COPD patient and help in predicting the prognosis of the disease.

Keywords: COPD, Spirometry, Platelet parameters, MPV, PDW

Full Text:

INTRODUCTION:

Chronic obstructive pulmonary disease (COPD) is estimated to affect greater than 5% of the adults and with a progressively rising rate of morbidity and mortality1,2. As it is estimated, COPD will be the third leading cause of death worldwide by 20203,4. COPD is a great financial burden upon health systems, primarily because of its acute exacerbations which require hospitalization5. COPD is mainly characterized by restricted airflow, which is a result of inflammation as well as the remodelling of the airways6. COPD is characterised by both systemic as well as pulmonary inflammation. During an acute exacerbation, the inflammatory pathways areunregulated to a greater extentand may also precipitate acute cardiovascular events.COPD is also associated with low-grade systemic inflammation as obvious from increased total leucocyte count, acutephase proteins like C-reactive protein (CRP), and inflammatory cytokines7. Platelet parameters like platelet count, Mean platelet volume (MPV) and platelet distribution width (PDW)8 are markers of platelet activation.9-11 Increased MPV is associated with many vascular diseases,like peripheral, cerebrovascular disease, and coronary artery disease12,13. Biljak et al(14) reported elevated platelet count and decreased MPV in COPD patients. In contrast, Cui et al15 stated that a high MPV predicts impaired pulmonary and cardiac function in elderly COPD patients. However, only a few studies have been done showing the relationship between MPV and the severity of COPD. Hence our study aimed to establish the role of platelet parameters in patients of COPD and to find the co-relationof various platelet parameters with the severity of COPD. We also intended to find out if itcould be used as a prognostic tool in future.

AIMS AND OBJECTIVES:

1. The study aimed to find out the role of Platelet Parameters in COPD and toestablish the relationship between the severity of COPD with the Platelet Parameters.

2. To find out whether the platelet parameters can be a useful prognostic tool that willhelp the therapeutic target in COPD.

MATERIAL AND METHODS:

The study was undertaken in the Department of Physiology of IMS and SUM Hospital, Bhubaneswar. Forty COPD patients who visited the Pulmonary Medicine OPD during the study period were included in the study. COPDpatients were diagnosed according to the GOLD’s criteria. Approval from the institutional ethic committee (IEC) was obtained, and written informed consent was taken from patients who participated in the study. Patients withother acute and chronic lung diseases, Haematological disorders, patients with any other chronic inflammatory condition or Cancer patients on Long term Oxygen Therapy were excluded from the study.

In all the patients included in the study group, the following investigations were done in addition to the routine investigations:

-Complete Blood Count including platelet parameters like platelet count, mean platelet volume and platelet distribution width.

-Pulmonary Function Tests

- Chest X-Ray

The result of various tests wasrecorded independently of one another. A detail medical history was obtained,and a detail physical examination was performed. Physical examination was followed by spirometry.

COPD was diagnosed on the basis of clinical examination (chronic and progressive dyspnea, cough, and sputum production) and also spirometry findings (FEV1/ FVC (forced vital capacity) <0.70 after use of bronchodilation).

The Spirometry results (Lung Function Test) was used to define the severity of disease as per the Global Initiative for Chronic Obstructive Lung Disease classification(GOLD criteria).

stage I (mild)-GOLD 1- FEV1/FVC<70% and FEV1≥80% predicted;

stage II (moderate)-GOLD 2- FEV1/FVC<70% and 50%≤FEV1<80% predicted;

stage III (severe)-GOLD 3- FEV1/FVC<70% and 30%≤FEV1<50% predicted;

stage IV (very severe)-GOLD 4- FEV1/FEVC<70% and FFEV1<30% predicted.’

For our study, the first three categories were taken into consideration.

Biochemical Analysis of Blood Samples

The blood sample was collected in the morning following an overnight fast. Ethylenediaminetetraaceticacid tubes were used to avoid platelet swelling, MPV and PDW was estimatedwithin 30minutes after sampling by an automated blood cell counter (Sysmex XE 2100, Kobe, Japan). The results of the Spirometry was compared with the different platelet parameters likeplatelet count, mean platelet volume and platelet distribution width to establish the probablerole of platelets in the severity of COPD.

Statistical Analysis

The statistical analysis was done using SPSS 20. The quantitative data were summarized with Mean ± standard deviation and documented. Correlation between ages ofdifferent groups such as mild, moderate and severe was calculated using chi-square test, and the difference in the proportion of cases with varying levels of MPV in both groups and the variousother clinical parameters like FVC, FEV1, FEV1/FVC, PDW and platelet count were analysed using ANOVA.

RESULTS:

A total of 40 Chronic Obstructive Pulmonary Disease were studied for platelet parametersand pulmonary function test. After analysis, the following results were obtained. All test results were significant at P<0.05, and p<0.001 was considered highly significant. In our study, we found a significant increase in MPV, PDW and platelet count with an increase in the severity of COPD.

OBSERVATION:

Table 1: Demographic characteristics of COPD patients

DISCUSSION:

COPD is a progressive disease along with chronic inflammation. It presents with an acute increase in severity of the disease, which may be due to several factors like air pollution, occupational exposure, age and genetic susceptibility. Stable COPD is associated with low-grade systemic inflammation whichcan be concluded from increasinglevels of blood leucocytes and acute phase proteins15,16. As indicated from earlier studies, it is suggestive that the lung function impairment in COPD is strongly associated with impaired cardiovascular functions and deaths related to the cardiovascular system17. In addition to it, COPD and atherosclerosis frequentlycoexist and have some combined risk factors like age and also smoking. Inflammation is considered as the leading cause of progression of COPD and atherosclerosis. Platelets are considered to be responsible for atherogenesis, atherothrombosis and inflammation. According to recent studies, it has been found that an increase inarginase activity in case of platelets indicates altered metabolism of Nitric oxide and an increase in platelet activity seen in COPD18. It was also reported that patients of COPD had higher level of soluble P Selectin, a marker of platelet hyperreactivity19. Somestudies indicate the inverse relations between MPV and disease activity in rheumatoid arthritis, inflammatorybowel disease, and ankylosing spondylitis20,21. MPV is referred to asa ‘marker of inflammation’, is found to be elevated in patients who are at risk of atherothrombotic disease. MPV and PDW reflect the platelets sizeand the rate of production ofplatelets in the bone marrow, and it can be used as an indicator of activation of plateletand the severity of inflammation.

In our study, we have found that the platelet countincreases significantly as the severity of COPD increases. There was also a significant increase in MPV and PDW with increasing severity of the disease. However, the association between Mean platelet Volume and COPD is still unclear. Some studies have shown that patients with Stable COPD have an increased level of MPV compared to those in the control groups22 whereas according to another report it was found that this association of increased mean platelet volume in COPD patients was not significant statistically (23).The controversial statements may bea result of the inability to rule out confoundingfactors like body mass index, use of specific medication, Obesity, smoking statusetc21. Onder et al 24 studied the relationship between hypoxia and thrombocytes in patients of COPD, and they concluded that MPV values were higherin hypoxic patients with COPD as compared tononhypoxic participants and controls. Biljak et al. (14) found that patients with stable COPD patients had a significantlyhigher level of PLT count and decreased MPV in comparison to healthy controls.

CONCLUSION

In this study, the role of Platelet Parameters as an inflammatory marker of COPD was tried to beestablished. We tried to find out the diagnostic efficacy of the Platelet parameters in determining the mode of treatment to prevent further complication in patients with COPD. We found that as there is worsening of the disease, the number of platelets increases. The MPV and PDW also increased with the severity of illness in patients with COPD. So, the platelet parameters can be used as a simple, quick, tool to predict the severity in COPD patient and thereby help to determine the prognosis and plan for treatment.The sample size was kept less in the study, andin future, more extensiveresearch can be conducted taking a large sample size.

ACKNOWLEDGEMENT:

The authors thank the Department of Pulmonary Medicineof IMS and SUM Hospital. Authors acknowledge the immense help received from the scholars whose articles are cited and included in references to this manuscript. The authors are also grateful to authors/editors/publishers of all those articles, journals and books from where the literature for this article has been reviewed and discussed.

Financial support: NIL

Conflict of interest: NIL

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Research Incentive Schemes

Awards, Research and Publication incentive Schemes by IJCRR

Best Article Award: 

One article from every issue is selected for the ‘Best Article Award’. Authors of selected ‘Best Article’ are rewarded with a certificate. IJCRR Editorial Board members select one ‘Best Article’ from the published issue based on originality, novelty, social usefulness of the work. The corresponding author of selected ‘Best Article Award’ is communicated and information of award is displayed on IJCRR’s website. Drop a mail to editor@ijcrr.com for more details.

Women Researcher Award:

This award is instituted to encourage women researchers to publish her work in IJCRR. Women researcher, who intends to publish her research work in IJCRR as the first author is eligible to apply for this award. Editorial Board members decide on the selection of women researchers based on the originality, novelty, and social contribution of the research work. The corresponding author of the selected manuscript is communicated and information is displayed on IJCRR’s website. Under this award selected women, the author is eligible for publication incentives. Drop a mail to editor@ijcrr.com for more details.

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Best Article Award

A Study by Juna Byun et al. entitled "Study on Difference in Coronavirus-19 Related Anxiety between Face-to-face and Non-face-to-face Classes among University Students in South Korea" is awarded Best Article for Vol 12 issue 16
A Study by Sudha Ramachandra & Vinay Chavan entitled "Enhanced-Hybrid-Age Layered Population Structure (E-Hybrid-ALPS): A Genetic Algorithm with Adaptive Crossover for Molecular Docking Studies of Drug Discovery Process" is awarded Best article for Vol 12 issue 15
A Study by Varsha M. Shindhe et al. entitled "A Study on Effect of Smokeless Tobacco on Pulmonary Function Tests in Class IV Workers of USM-KLE (Universiti Sains Malaysia-Karnataka Lingayat Education Society) International Medical Programme, Belagavi" is awarded Best article of Vol 12 issue 14, July 2020
A study by Amruta Choudhary et al. entitled "Family Planning Knowledge, Attitude and Practice Among Women of Reproductive Age from Rural Area of Central India" is awarded Best Article for special issue "Modern Therapeutics Applications"
A study by Raunak Das entitled "Study of Cardiovascular Dysfunctions in Interstitial Lung Diseas epatients by Correlating the Levels of Serum NT PRO BNP and Microalbuminuria (Biomarkers of Cardiovascular Dysfunction) with Echocardiographic, Bronchoscopic and HighResolution Computed Tomography Findings of These ILD Patients" is awarded Best Article of Vol 12 issue 13 
A Study by Kannamani Ramasamy et al. entitled "COVID-19 Situation at Chennai City – Forecasting for the Better Pandemic Management" is awarded best article for  Vol 12 issue 12
A Study by Muhammet Lutfi SELCUK and Fatma COLAKOGLU entitled "Distinction of Gray and White Matter for Some Histological Staining Methods in New Zealand Rabbit's Brain" is awarded best article for  Vol 12 issue 11
A Study by Anamul Haq et al. entitled "Etiology of Abnormal Uterine Bleeding in Adolescents – Emphasis Upon Polycystic Ovarian Syndrome" is awarded best article for  Vol 12 issue 10
A Study by Arpita M. et al entitled "Estimation of Reference Interval of Serum Progesterone During Three Trimesters of Normal Pregnancy in a Tertiary Care Hospital of Kolkata" is awarded best article for  Vol 12 issue 09
A Study by Ilona Gracie De Souza & Pavan Kumar G. entitled "Effect of Releasing Myofascial Chain in Patients with Patellofemoral Pain Syndrome - A Randomized Clinical Trial" is awarded best article for  Vol 12 issue 08
A Study by Virendra Atam et. al. entitled "Clinical Profile and Short - Term Mortality Predictors in Acute Stroke with Emphasis on Stress Hyperglycemia and THRIVE Score : An Observational Study" is awarded best article for  Vol 12 issue 07
A Study by K. Krupashree et. al. entitled "Protective Effects of Picrorhizakurroa Against Fumonisin B1 Induced Hepatotoxicity in Mice" is awarded best article for issue Vol 10 issue 20
A study by Mithun K.P. et al "Larvicidal Activity of Crude Solanum Nigrum Leaf and Berries Extract Against Dengue Vector-Aedesaegypti" is awarded Best Article for Vol 10 issue 14 of IJCRR
A study by Asha Menon "Women in Child Care and Early Education: Truly Nontraditional Work" is awarded Best Article for Vol 10 issue 13
A study by Deep J. M. "Prevalence of Molar-Incisor Hypomineralization in 7-13 Years Old Children of Biratnagar, Nepal: A Cross Sectional Study" is awarded Best Article for Vol 10 issue 11 of IJCRR
A review by Chitra et al to analyse relation between Obesity and Type 2 diabetes is awarded 'Best Article' for Vol 10 issue 10 by IJCRR. 
A study by Karanpreet et al "Pregnancy Induced Hypertension: A Study on Its Multisystem Involvement" is given Best Paper Award for Vol 10 issue 09
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List of Awardees

Awardees of COVID-19 Research

Woman Researcher Award

A Study by Neha Garg et al. entitled "Optimization of the Response to nCOVID-19 Pandemic in Pregnant Women – An Urgent Appeal in Indian Scenario" published in Vol 12 issue 09

A Study by Sana Parveen and Shraddha Jain entitled "Pathophysiologic Enigma of COVID-19 Pandemic with Clinical Correlates" published in Vol 12 issue 13

A Study by Rashmi Jain et al. entitled "Current Consensus Review Article on Drugs and Biologics against nCOVID-19 – A Systematic Review" published in Vol 12 issue 09

Emerging Researcher Award

A Study by Madhan Jeyaraman et al. entitled "Vitamin-D: An Immune Shield Against nCOVID-19" published in Vol 12 issue 09

Study by Dheeraj Kumar Chopra et al. entitled "Lipid-Based Solid Dispersions of Azilsartan Medoxomil with Improved Oral Bioavailability: In Vitro and In Vivo Evaluation" published in Vol 12 issue 19


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