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Effects of Citrus sinensis juice on blood pressure

Identifieur interne : 000A91 ( Pmc/Checkpoint ); précédent : 000A90; suivant : 000A92

Effects of Citrus sinensis juice on blood pressure

Auteurs : Sedigheh Asgary ; Mahtab Keshvari [Iran]

Source :

RBID : PMC:3653258

Abstract

BACKGROUND

Citrus sinensis juice (CSJ) is a rich source of dietary flavonoids which reduce the risk of adverse cardiovascular events. This study aimed to examine the effects of four-week intake of natural and commercial orange (Citrus sinensis) juice on blood pressure in healthy volunteers.

METHODS

In this single-blind randomized crossover study, 22 healthy subjects (age: 18-59 years old) were included and randomly divided into two groups of 11. Group A consumed commercial CSJ during the first four-week period. After a two-week washout period, they consumed natural CSJ for another four weeks. The procedure was reversed in group B. The participants were asked to drink 500 ml/day of either natural or commercial CSJ twice a day with breakfast and dinner. The effects of orange juice on blood pressure were evaluated.

RESULTS

After drinking commercial CSJ, diastolic and systolic blood pressure were significantly decreased (5.13%; P = 0.03 and -5.91%; P = 0.003, respectively). However, consumption of natural CSJ did not have significant effects on either diastolic or systolic blood pressure.

CONCLUSION

Commercial CSJ significantly decreased blood pressure. Higher flavonoid, pectin, and essential oils content of concentrated products compared to natural juice might have been responsible for this finding. Nevertheless, further studies to focus on dose-response effects are recommended.


Url:
PubMed: 23696766
PubMed Central: 3653258


Affiliations:


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PMC:3653258

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<name sortKey="Asgary, Sedigheh" sort="Asgary, Sedigheh" uniqKey="Asgary S" first="Sedigheh" last="Asgary">Sedigheh Asgary</name>
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<name sortKey="Keshvari, Mahtab" sort="Keshvari, Mahtab" uniqKey="Keshvari M" first="Mahtab" last="Keshvari">Mahtab Keshvari</name>
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<title>BACKGROUND</title>
<p>Citrus sinensis juice (CSJ) is a rich source of dietary flavonoids which reduce the risk of adverse cardiovascular events. This study aimed to examine the effects of four-week intake of natural and commercial orange (Citrus sinensis) juice on blood pressure in healthy volunteers.</p>
</sec>
<sec id="st2">
<title>METHODS</title>
<p>In this single-blind randomized crossover study, 22 healthy subjects (age: 18-59 years old) were included and randomly divided into two groups of 11. Group A consumed commercial CSJ during the first four-week period. After a two-week washout period, they consumed natural CSJ for another four weeks. The procedure was reversed in group B. The participants were asked to drink 500 ml/day of either natural or commercial CSJ twice a day with breakfast and dinner. The effects of orange juice on blood pressure were evaluated.</p>
</sec>
<sec id="st3">
<title>RESULTS</title>
<p>After drinking commercial CSJ, diastolic and systolic blood pressure were significantly decreased (5.13%; P = 0.03 and -5.91%; P = 0.003, respectively). However, consumption of natural CSJ did not have significant effects on either diastolic or systolic blood pressure.</p>
</sec>
<sec id="st4">
<title>CONCLUSION</title>
<p>Commercial CSJ significantly decreased blood pressure. Higher flavonoid, pectin, and essential oils content of concentrated products compared to natural juice might have been responsible for this finding. Nevertheless, further studies to focus on dose-response effects are recommended.</p>
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<journal-meta>
<journal-id journal-id-type="nlm-ta">ARYA Atheroscler</journal-id>
<journal-id journal-id-type="iso-abbrev">ARYA Atheroscler</journal-id>
<journal-id journal-id-type="publisher-id">ARYA</journal-id>
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<journal-title>ARYA Atherosclerosis</journal-title>
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<issn pub-type="ppub">1735-3955</issn>
<issn pub-type="epub">2251-6638</issn>
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<publisher-name>Isfahan Cardiovascular Research Center, Isfahan University of Medical Sciences</publisher-name>
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<article-id pub-id-type="pmid">23696766</article-id>
<article-id pub-id-type="pmc">3653258</article-id>
<article-id pub-id-type="publisher-id">ARYA-09-98</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Original Article</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>Effects of Citrus sinensis juice on blood pressure</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Asgary</surname>
<given-names>Sedigheh</given-names>
</name>
<xref ref-type="aff" rid="af1-ARYA-09-98">1</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Keshvari</surname>
<given-names>Mahtab</given-names>
</name>
<xref ref-type="aff" rid="af2-ARYA-09-98">2</xref>
<xref rid="c1-ARYA-09-98" ref-type="corresp"></xref>
</contrib>
</contrib-group>
<aff id="af1-ARYA-09-98">
<label>1</label>
Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, And Physiology Research Center, Isfahan</aff>
<aff id="af2-ARYA-09-98">
<label>2</label>
Falavarjan Branch, Islamic Azad University, Falavarjan, And Physiology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran</aff>
<author-notes>
<corresp id="c1-ARYA-09-98">Correspondence to:Mahtab Keshvari, Email:
<email xlink:href="mahtabkeshvari87@yahoo.com">mahtabkeshvari87@yahoo.com</email>
</corresp>
</author-notes>
<pub-date pub-type="ppub">
<month>1</month>
<year>2013</year>
</pub-date>
<volume>9</volume>
<issue>1</issue>
<fpage>98</fpage>
<lpage>101</lpage>
<history>
<date date-type="received">
<day>21</day>
<month>5</month>
<year>2012</year>
</date>
<date date-type="accepted">
<day>15</day>
<month>8</month>
<year>2012</year>
</date>
</history>
<permissions>
<copyright-statement>© 2013 Isfahan Cardiovascular Research Center & Isfahan University of Medical Sciences</copyright-statement>
<copyright-year>2013</copyright-year>
<license xlink:href="http://creativecommons.org/licenses/by-nc/3.0/" license-type="open-access">
<license-p>This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.</license-p>
</license>
</permissions>
<abstract>
<sec id="st1">
<title>BACKGROUND</title>
<p>Citrus sinensis juice (CSJ) is a rich source of dietary flavonoids which reduce the risk of adverse cardiovascular events. This study aimed to examine the effects of four-week intake of natural and commercial orange (Citrus sinensis) juice on blood pressure in healthy volunteers.</p>
</sec>
<sec id="st2">
<title>METHODS</title>
<p>In this single-blind randomized crossover study, 22 healthy subjects (age: 18-59 years old) were included and randomly divided into two groups of 11. Group A consumed commercial CSJ during the first four-week period. After a two-week washout period, they consumed natural CSJ for another four weeks. The procedure was reversed in group B. The participants were asked to drink 500 ml/day of either natural or commercial CSJ twice a day with breakfast and dinner. The effects of orange juice on blood pressure were evaluated.</p>
</sec>
<sec id="st3">
<title>RESULTS</title>
<p>After drinking commercial CSJ, diastolic and systolic blood pressure were significantly decreased (5.13%; P = 0.03 and -5.91%; P = 0.003, respectively). However, consumption of natural CSJ did not have significant effects on either diastolic or systolic blood pressure.</p>
</sec>
<sec id="st4">
<title>CONCLUSION</title>
<p>Commercial CSJ significantly decreased blood pressure. Higher flavonoid, pectin, and essential oils content of concentrated products compared to natural juice might have been responsible for this finding. Nevertheless, further studies to focus on dose-response effects are recommended.</p>
</sec>
</abstract>
<kwd-group>
<kwd>Citrus Sinensis Juice</kwd>
<kwd>Hypertension</kwd>
<kwd>Blood Pressure</kwd>
</kwd-group>
</article-meta>
</front>
<floats-group>
<table-wrap id="t1-ARYA-09-98" position="float">
<label>Table 1</label>
<caption>
<p>Comparison of the two groups before and after each experimental period</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th rowspan="1" colspan="1">Characteristics</th>
<th align="center" rowspan="1" colspan="1">Group</th>
<th align="center" rowspan="1" colspan="1">T1</th>
<th align="center" rowspan="1" colspan="1">T2</th>
<th align="center" rowspan="1" colspan="1">P</th>
<th align="center" rowspan="1" colspan="1">T3</th>
<th align="center" rowspan="1" colspan="1">T4</th>
<th align="center" rowspan="1" colspan="1">P</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="3" colspan="1">Systolic blood pressure (mmHg)</td>
<td align="center" rowspan="1" colspan="1">Group A</td>
<td align="center" rowspan="1" colspan="1">112.00 ± 8.50</td>
<td align="center" rowspan="1" colspan="1">108.00 ± 7.89</td>
<td align="center" rowspan="1" colspan="1">0.020</td>
<td align="center" rowspan="1" colspan="1">112.55 ± 8.20</td>
<td align="center" rowspan="1" colspan="1">110.91 ± 11.36</td>
<td align="center" rowspan="1" colspan="1">0.271</td>
</tr>
<tr>
<td align="center" rowspan="1" colspan="1">Group B</td>
<td align="center" rowspan="1" colspan="1">110.91 ± 7.01</td>
<td align="center" rowspan="1" colspan="1">106.36 ± 6.74</td>
<td align="center" rowspan="1" colspan="1">0.129</td>
<td align="center" rowspan="1" colspan="1">110.91 ± 7.01</td>
<td align="center" rowspan="1" colspan="1">104.55 ± 8.20</td>
<td align="center" rowspan="1" colspan="1">0.053</td>
</tr>
<tr>
<td align="center" rowspan="1" colspan="1">P</td>
<td align="center" rowspan="1" colspan="1">0.555</td>
<td align="center" rowspan="1" colspan="1">0.917</td>
<td align="center" rowspan="1" colspan="1">0.860</td>
<td align="center" rowspan="1" colspan="1">0.630</td>
<td align="center" rowspan="1" colspan="1">0.119</td>
<td align="center" rowspan="1" colspan="1">0.840</td>
</tr>
<tr>
<td rowspan="3" colspan="1">Diastolic blood pressure (mmHg)</td>
<td align="center" rowspan="1" colspan="1">Group A</td>
<td align="center" rowspan="1" colspan="1">78.00 ± 11.35</td>
<td align="center" rowspan="1" colspan="1">72.00 ± 7.89</td>
<td align="center" rowspan="1" colspan="1">0.050</td>
<td align="center" rowspan="1" colspan="1">75.45 ± 11.28</td>
<td align="center" rowspan="1" colspan="1">76.36 ± 10.27</td>
<td align="center" rowspan="1" colspan="1">0.792</td>
</tr>
<tr>
<td align="center" rowspan="1" colspan="1">Group B</td>
<td align="center" rowspan="1" colspan="1">72.73 ± 4.67</td>
<td align="center" rowspan="1" colspan="1">70.91 ± 7.01</td>
<td align="center" rowspan="1" colspan="1">0.317</td>
<td align="center" rowspan="1" colspan="1">72.91 ± 5.39</td>
<td align="center" rowspan="1" colspan="1">69.09 ± 5.39</td>
<td align="center" rowspan="1" colspan="1">0.050</td>
</tr>
<tr>
<td align="center" rowspan="1" colspan="1">P</td>
<td align="center" rowspan="1" colspan="1">0.130</td>
<td align="center" rowspan="1" colspan="1">0.400</td>
<td align="center" rowspan="1" colspan="1">0.204</td>
<td align="center" rowspan="1" colspan="1">0.011</td>
<td align="center" rowspan="1" colspan="1">0.146</td>
<td align="center" rowspan="1" colspan="1">0.490</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn id="tfn1-ARYA-09-98">
<p>Group A consumed commercial Citrus sinensis juice during the first period and natural Citrus sinensis juice during the second. Group B consumed natural Citrus sinensis juice during the first period and commercial Citrus sinensis juice during the second.</p>
</fn>
<fn id="tfn2-ARYA-09-98">
<p>T1: Before the first period</p>
</fn>
<fn id="tfn3-ARYA-09-98">
<p>T2: After the first period</p>
</fn>
<fn id="tfn4-ARYA-09-98">
<p>T3: Before the second period</p>
</fn>
<fn id="tfn5-ARYA-09-98">
<p>T4: After the second period</p>
</fn>
</table-wrap-foot>
</table-wrap>
<table-wrap id="t2-ARYA-09-98" position="float">
<label>Table 2</label>
<caption>
<p>Changes in systolic and diastolic blood pressure (SBP and DBP) after the intervention compared to baseline</p>
</caption>
<table frame="hsides" rules="groups">
<thead>
<tr>
<th rowspan="1" colspan="1">Characteristic</th>
<th align="center" rowspan="1" colspan="1">Commercial orange juiceusers (n = 22)</th>
<th align="center" rowspan="1" colspan="1">Natural orange juiceusers (n = 22)</th>
</tr>
</thead>
<tbody>
<tr>
<td rowspan="1" colspan="1">SBP (mmHg)</td>
<td align="center" rowspan="1" colspan="1">-5.91%</td>
<td align="center" rowspan="1" colspan="1">-3.63%</td>
</tr>
<tr>
<td rowspan="1" colspan="1">DBP (mmHg)</td>
<td align="center" rowspan="1" colspan="1">-5.13%</td>
<td align="center" rowspan="1" colspan="1">-0.61%</td>
</tr>
</tbody>
</table>
<table-wrap-foot>
<fn id="tfn6-ARYA-09-98">
<p>SBP: Systolic blood pressure; DBO: diastolic blood pressure</p>
</fn>
</table-wrap-foot>
</table-wrap>
</floats-group>
</pmc>
<affiliations>
<list>
<country>
<li>Iran</li>
</country>
</list>
<tree>
<noCountry>
<name sortKey="Asgary, Sedigheh" sort="Asgary, Sedigheh" uniqKey="Asgary S" first="Sedigheh" last="Asgary">Sedigheh Asgary</name>
</noCountry>
<country name="Iran">
<noRegion>
<name sortKey="Keshvari, Mahtab" sort="Keshvari, Mahtab" uniqKey="Keshvari M" first="Mahtab" last="Keshvari">Mahtab Keshvari</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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