{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,3]],"date-time":"2026-10-03T14:52:31Z","timestamp":1791039151100,"version":"4.1.0"},"reference-count":42,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T00:00:00Z","timestamp":1790726400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Nutr Health"],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Non-motor symptoms (NMS) are prominent features of advanced Parkinson's disease (PD) that contribute to disability severity and quality of life impairment. Polyphenols in green tea are known to offer several health benefits.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Aim<\/jats:title>\n                    <jats:p>We examined the effects of daily green tea consumption on NMS in community-dwelling older individuals with PD.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>\n                      Patients were divided into three groups based on their daily green tea consumption: &lt;0.5 L\/day (\n                      <jats:italic toggle=\"yes\">n<\/jats:italic>\n                      \u2009=\u200942), 0.5\u20131 L\/day (\n                      <jats:italic toggle=\"yes\">n<\/jats:italic>\n                      \u2009=\u200912), and &gt;1 L\/day (\n                      <jats:italic toggle=\"yes\">n<\/jats:italic>\n                      \u2009=\u200924).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Summary<\/jats:title>\n                    <jats:p>\n                      Patients who consumed green tea daily required significantly fewer medications than those who did not consume green tea daily (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.042). The proportion of patients with moderate and severe sleep disturbances assessed via the Movement Disorder Society-Unified Parkinson's Disease Rating Scale was significantly lower in the &gt;1 L\/day group (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.029). Sleep disturbances and constipation correlated significantly with daily green tea consumption (\n                      <jats:italic toggle=\"yes\">r<\/jats:italic>\n                      \u2009=\u2009\u22120.35,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.002 and\n                      <jats:italic toggle=\"yes\">r<\/jats:italic>\n                      \u2009=\u2009\u22120.28,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.018, respectively). Logistic regression analysis adjusted for age, sex, and number of medications showed that normal and slight sleep disturbances and constipation were significantly associated with daily green tea consumption quantity (odds ratio [OR]: 0.57, 95% confidence interval [CI]: 0.39\u20130.83,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.004 and OR: 0.71, 95% CI: 0.50\u20130.99,\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      \u2009=\u20090.043, respectively). Daily green tea consumption may correlate with reduced sleep disorders and constipation in older patients with PD. Our research generates a new hypothesis that warrants further clinical trials and prospective investigations.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/02601060261493252","type":"journal-article","created":{"date-parts":[[2026,10,1]],"date-time":"2026-10-01T03:59:05Z","timestamp":1790827145000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["A comparative analysis of effects of daily green tea consumption on non-motor symptoms among community-dwelling older patients with Parkinson's disease"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6805-2742","authenticated-orcid":false,"given":"Harutoshi","family":"Sakakima","sequence":"first","affiliation":[{"name":"School of Health Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshiro","family":"Uchi","sequence":"additional","affiliation":[{"name":"School of Health Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuki","family":"Nakanishi","sequence":"additional","affiliation":[{"name":"School of Health Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuki","family":"Kato-Eguchi","sequence":"additional","affiliation":[{"name":"School of Health Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teruki","family":"Matsuoka","sequence":"additional","affiliation":[{"name":"School of Health Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryoma","family":"Matsuzaki","sequence":"additional","affiliation":[{"name":"School of Health Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shogo","family":"Kakimoto","sequence":"additional","affiliation":[{"name":"School of Health Sciences"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshitake","family":"Baba","sequence":"additional","affiliation":[{"name":"ITO EN, Ltd"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Makoto","family":"Kobayashi","sequence":"additional","affiliation":[{"name":"ITO EN, Ltd"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takanobu","family":"Takihara","sequence":"additional","affiliation":[{"name":"ITO EN, Ltd"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,9,30]]},"reference":[{"key":"e_1_3_3_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.brainres.2025.149693"},{"key":"e_1_3_3_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cortex.2008.11.010"},{"key":"e_1_3_3_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.nrl.2014.10.010"},{"key":"e_1_3_3_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.parkreldis.2021.08.013"},{"key":"e_1_3_3_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroscience.2025.09.047"},{"key":"e_1_3_3_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1474-4422(06)70373-8"},{"key":"e_1_3_3_8_1","doi-asserted-by":"publisher","DOI":"10.4236\/jbbs.2015.56020"},{"key":"e_1_3_3_9_1","doi-asserted-by":"publisher","DOI":"10.1037\/0033-2909.112.1.155"},{"key":"e_1_3_3_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/ageing\/afj087"},{"key":"e_1_3_3_11_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12603-013-0404-1"},{"key":"e_1_3_3_12_1","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awaa238"},{"key":"e_1_3_3_13_1","first-page":"107","article-title":"Non-genetic factors associated with the risk of Parkinson\u2019s disease in Iranian patients","volume":"28","author":"Hosseini Tabatabaei N","year":"2013","unstructured":"Hosseini Tabatabaei N, Babakhani B, Hosseini Tabatabaei A, et al. 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