Reference range for T lymphocytes populations in blood donors from two different regions in Brazil
This study defined the normal variation range for different subsets of T-lymphocyte cells count in two different Brazilian regions. We analysed the T-lymphocytes subpopulations (CD3+, CD4+, CD8+) in blood donors of two Brazilian cities, located in North (Belem, capital state of Para, indian backgrou...
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| Veröffentlicht in: | The Brazilian journal of infectious diseases 2009-06, Vol.13 (3), p.221-225 |
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| container_title | The Brazilian journal of infectious diseases |
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| creator | Torres, A J L Angelo, A L D Netto, E M Sampaio, G P Souza, D F C Inocêncio, L A Lemos, J A R Brites, C |
| description | This study defined the normal variation range for different subsets of T-lymphocyte cells count in two different Brazilian regions. We analysed the T-lymphocytes subpopulations (CD3+, CD4+, CD8+) in blood donors of two Brazilian cities, located in North (Belem, capital state of Para, indian background) and Northeast (Salvador, capital state od Bahia, African background) regions of Brazil. Results were compared according to gender, stress level (sleep time lower than 8 hours/day), smoking, and alcohol intake. Lymphocytes subpopulations were measured by flow cytometry. Five hundred twenty-six blood donors from two Brazilians cities participated in the study: 450 samples from Bahia and 76 samples from Pará. Most (60%) were men, 59% reported alcohol intake, 12% were smokers, and 80% slept at least 8 h/day. Donors from Bahia presented with significantly higher counts for all parameters, compared with Para. Women had higher lymphocytes levels, in both states, but only CD4+ cells count was significantly higher than men's values. Smokers had higher CD4+ counts, but sleep time had effect on lymphocytes levels only for Para's donors (higher CD3+ and CD4+ counts). That state had also, a higher proportion of donors reporting sleep time |
| doi_str_mv | 10.1590/S1413-86702009000300013 |
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We analysed the T-lymphocytes subpopulations (CD3+, CD4+, CD8+) in blood donors of two Brazilian cities, located in North (Belem, capital state of Para, indian background) and Northeast (Salvador, capital state od Bahia, African background) regions of Brazil. Results were compared according to gender, stress level (sleep time lower than 8 hours/day), smoking, and alcohol intake. Lymphocytes subpopulations were measured by flow cytometry. Five hundred twenty-six blood donors from two Brazilians cities participated in the study: 450 samples from Bahia and 76 samples from Pará. Most (60%) were men, 59% reported alcohol intake, 12% were smokers, and 80% slept at least 8 h/day. Donors from Bahia presented with significantly higher counts for all parameters, compared with Para. Women had higher lymphocytes levels, in both states, but only CD4+ cells count was significantly higher than men's values. Smokers had higher CD4+ counts, but sleep time had effect on lymphocytes levels only for Para's donors (higher CD3+ and CD4+ counts). That state had also, a higher proportion of donors reporting sleep time <8 h/day. The values for CD3, CD4 and CD8+ cells count were significantly higher in blood donors from Bahia than among those from Pará. Female gender, alcohol intake, stress level, and smoking were associated with higher lymphocyte counts. The use of a single reference range for normal lymphocytes count is not appropriate for a country with such diversity, like Brazil is.</description><identifier>ISSN: 1413-8670</identifier><identifier>ISSN: 1678-4391</identifier><identifier>EISSN: 1678-4391</identifier><identifier>DOI: 10.1590/S1413-86702009000300013</identifier><identifier>PMID: 20191201</identifier><language>eng</language><publisher>Brazil: Brazilian Society of Infectious Diseases</publisher><subject>Alcohol Drinking - immunology ; Blood Donors ; Brazil ; CD4 ; CD8 ; Female ; Flow Cytometry ; Humans ; INFECTIOUS DISEASES ; Lymphocyte Count ; Male ; Reference Values ; Smoking - immunology ; Stress, Psychological - immunology ; T-Lymphocyte Subsets - cytology</subject><ispartof>The Brazilian journal of infectious diseases, 2009-06, Vol.13 (3), p.221-225</ispartof><rights>This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c466t-5bc2c8ff1ee18e3fedaf4b3f1218ddf13fef712eab89d091c3606b901e651b283</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,860,881,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20191201$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Torres, A J L</creatorcontrib><creatorcontrib>Angelo, A L D</creatorcontrib><creatorcontrib>Netto, E M</creatorcontrib><creatorcontrib>Sampaio, G P</creatorcontrib><creatorcontrib>Souza, D F C</creatorcontrib><creatorcontrib>Inocêncio, L A</creatorcontrib><creatorcontrib>Lemos, J A R</creatorcontrib><creatorcontrib>Brites, C</creatorcontrib><title>Reference range for T lymphocytes populations in blood donors from two different regions in Brazil</title><title>The Brazilian journal of infectious diseases</title><addtitle>Braz J Infect Dis</addtitle><description>This study defined the normal variation range for different subsets of T-lymphocyte cells count in two different Brazilian regions. We analysed the T-lymphocytes subpopulations (CD3+, CD4+, CD8+) in blood donors of two Brazilian cities, located in North (Belem, capital state of Para, indian background) and Northeast (Salvador, capital state od Bahia, African background) regions of Brazil. Results were compared according to gender, stress level (sleep time lower than 8 hours/day), smoking, and alcohol intake. Lymphocytes subpopulations were measured by flow cytometry. Five hundred twenty-six blood donors from two Brazilians cities participated in the study: 450 samples from Bahia and 76 samples from Pará. Most (60%) were men, 59% reported alcohol intake, 12% were smokers, and 80% slept at least 8 h/day. Donors from Bahia presented with significantly higher counts for all parameters, compared with Para. Women had higher lymphocytes levels, in both states, but only CD4+ cells count was significantly higher than men's values. Smokers had higher CD4+ counts, but sleep time had effect on lymphocytes levels only for Para's donors (higher CD3+ and CD4+ counts). That state had also, a higher proportion of donors reporting sleep time <8 h/day. The values for CD3, CD4 and CD8+ cells count were significantly higher in blood donors from Bahia than among those from Pará. Female gender, alcohol intake, stress level, and smoking were associated with higher lymphocyte counts. The use of a single reference range for normal lymphocytes count is not appropriate for a country with such diversity, like Brazil is.</description><subject>Alcohol Drinking - immunology</subject><subject>Blood Donors</subject><subject>Brazil</subject><subject>CD4</subject><subject>CD8</subject><subject>Female</subject><subject>Flow Cytometry</subject><subject>Humans</subject><subject>INFECTIOUS DISEASES</subject><subject>Lymphocyte Count</subject><subject>Male</subject><subject>Reference Values</subject><subject>Smoking - immunology</subject><subject>Stress, Psychological - immunology</subject><subject>T-Lymphocyte Subsets - cytology</subject><issn>1413-8670</issn><issn>1678-4391</issn><issn>1678-4391</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>DOA</sourceid><recordid>eNp9UcluFDEQbSEQWeAXwDdOHVx2L_YRIiCRIkXKcra8lAeP3O3G7lY0fD3NTCYXJA61qPSWUlVVfQR6Aa2kn--hAV6LrqeMUkkp5WsAf1WdQteLuuESXq_9EXRSnZWypZS1tKFvqxNGQcKaTitzhx4zjhZJ1uMGiU-ZPJC4G6afye5mLGRK0xL1HNJYSBiJiSk54tKYciE-p4HMT4m44Pc6M8m4OUK_Zv07xHfVG69jwffP9bx6_P7t4fKqvrn9cX355aa2TdfNdWsss8J7QASB3KPTvjHcAwPhnId14ntgqI2QjkqwvKOdkRSwa8Ewwc-r64OuS3qrphwGnXcq6aD2g5Q3Suc52IgKeuu5M-Cg6RvrQdrWeWROtNI0TptV6-KgVWzAmNQ2LXlcl1f7w6t_Dr8SPh0IU06_FiyzGkKxGKMeMS1F9Zx3QjLBVmR_QNqcSsnoX1YFqv4-9z8eH549FjOge-Edv8n_ADhWnpk</recordid><startdate>200906</startdate><enddate>200906</enddate><creator>Torres, A J L</creator><creator>Angelo, A L D</creator><creator>Netto, E M</creator><creator>Sampaio, G P</creator><creator>Souza, D F C</creator><creator>Inocêncio, L A</creator><creator>Lemos, J A R</creator><creator>Brites, C</creator><general>Brazilian Society of Infectious Diseases</general><general>Elsevier</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>GPN</scope><scope>DOA</scope></search><sort><creationdate>200906</creationdate><title>Reference range for T lymphocytes populations in blood donors from two different regions in Brazil</title><author>Torres, A J L ; Angelo, A L D ; Netto, E M ; Sampaio, G P ; Souza, D F C ; Inocêncio, L A ; Lemos, J A R ; Brites, C</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c466t-5bc2c8ff1ee18e3fedaf4b3f1218ddf13fef712eab89d091c3606b901e651b283</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Alcohol Drinking - immunology</topic><topic>Blood Donors</topic><topic>Brazil</topic><topic>CD4</topic><topic>CD8</topic><topic>Female</topic><topic>Flow Cytometry</topic><topic>Humans</topic><topic>INFECTIOUS DISEASES</topic><topic>Lymphocyte Count</topic><topic>Male</topic><topic>Reference Values</topic><topic>Smoking - immunology</topic><topic>Stress, Psychological - immunology</topic><topic>T-Lymphocyte Subsets - cytology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Torres, A J L</creatorcontrib><creatorcontrib>Angelo, A L D</creatorcontrib><creatorcontrib>Netto, E M</creatorcontrib><creatorcontrib>Sampaio, G P</creatorcontrib><creatorcontrib>Souza, D F C</creatorcontrib><creatorcontrib>Inocêncio, L A</creatorcontrib><creatorcontrib>Lemos, J A R</creatorcontrib><creatorcontrib>Brites, C</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>SciELO</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>The Brazilian journal of infectious diseases</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Torres, A J L</au><au>Angelo, A L D</au><au>Netto, E M</au><au>Sampaio, G P</au><au>Souza, D F C</au><au>Inocêncio, L A</au><au>Lemos, J A R</au><au>Brites, C</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reference range for T lymphocytes populations in blood donors from two different regions in Brazil</atitle><jtitle>The Brazilian journal of infectious diseases</jtitle><addtitle>Braz J Infect Dis</addtitle><date>2009-06</date><risdate>2009</risdate><volume>13</volume><issue>3</issue><spage>221</spage><epage>225</epage><pages>221-225</pages><issn>1413-8670</issn><issn>1678-4391</issn><eissn>1678-4391</eissn><abstract>This study defined the normal variation range for different subsets of T-lymphocyte cells count in two different Brazilian regions. We analysed the T-lymphocytes subpopulations (CD3+, CD4+, CD8+) in blood donors of two Brazilian cities, located in North (Belem, capital state of Para, indian background) and Northeast (Salvador, capital state od Bahia, African background) regions of Brazil. Results were compared according to gender, stress level (sleep time lower than 8 hours/day), smoking, and alcohol intake. Lymphocytes subpopulations were measured by flow cytometry. Five hundred twenty-six blood donors from two Brazilians cities participated in the study: 450 samples from Bahia and 76 samples from Pará. Most (60%) were men, 59% reported alcohol intake, 12% were smokers, and 80% slept at least 8 h/day. Donors from Bahia presented with significantly higher counts for all parameters, compared with Para. Women had higher lymphocytes levels, in both states, but only CD4+ cells count was significantly higher than men's values. Smokers had higher CD4+ counts, but sleep time had effect on lymphocytes levels only for Para's donors (higher CD3+ and CD4+ counts). That state had also, a higher proportion of donors reporting sleep time <8 h/day. The values for CD3, CD4 and CD8+ cells count were significantly higher in blood donors from Bahia than among those from Pará. Female gender, alcohol intake, stress level, and smoking were associated with higher lymphocyte counts. The use of a single reference range for normal lymphocytes count is not appropriate for a country with such diversity, like Brazil is.</abstract><cop>Brazil</cop><pub>Brazilian Society of Infectious Diseases</pub><pmid>20191201</pmid><doi>10.1590/S1413-86702009000300013</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Alcohol Drinking - immunology Blood Donors Brazil CD4 CD8 Female Flow Cytometry Humans INFECTIOUS DISEASES Lymphocyte Count Male Reference Values Smoking - immunology Stress, Psychological - immunology T-Lymphocyte Subsets - cytology |
| title | Reference range for T lymphocytes populations in blood donors from two different regions in Brazil |
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