{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,14]],"date-time":"2026-10-14T21:44:38Z","timestamp":1792014278822,"version":"4.4.0"},"reference-count":32,"publisher":"American Society for Microbiology","issue":"6","license":[{"start":{"date-parts":[[2014,6,1]],"date-time":"2014-06-01T00:00:00Z","timestamp":1401580800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["J Clin Microbiol"],"published-print":{"date-parts":[[2014,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>Tetracyclines are administered to cure Japanese spotted fever (JSF) and tsutsugamushi disease (TD). It is generally said that the clinical course of JSF is worse than that of TD despite antibiotic treatment. The precise mechanism underlying the more severe clinical course of JSF is not fully understood. We therefore examined whether the differential cytokine profile between these two infectious diseases contributes to the difference in clinical severity. The serum concentrations of various cytokines (tumor necrosis factor alpha [TNF-\u03b1], interleukin-6 [IL-6], and gamma interferon [IFN-\u03b3]) and chemokines (IL-8, interferon-inducible protein 10 [IP-10], monocyte chemoattractant protein 1 [MCP-1], macrophage inflammatory protein 1\u03b1 [MIP-1\u03b1], MIP-1\u03b2, and eotaxin) were measured in 32 TD and 21 JSF patients. The results showed that serum levels of TNF-\u03b1 in the acute phases of TD and JSF were significantly increased, with a higher concentration of TNF-\u03b1 in patients with JSF (mean, 39.9 pg\/ml) than in those with TD (mean, 13.8 pg\/ml). Comparatively higher levels of other cytokines and chemokines (IL-6, IFN-\u03b3, IL-8, IP-10, MCP-1, MIP-1\u03b1, and MIP-1\u03b2) were also observed in the acute phase of JSF. The clinical severity score (3.67 \u00b1 1.71) of JSF patients was higher than that of TD patients (1.47 \u00b1 0.77). Our findings revealed that the cytokine and chemokine levels in the acute phase of JSF were significantly higher than those in the acute phase of TD. The differential cytokine levels may be related to the difference in clinical severity between JSF and TD.<\/jats:p>","DOI":"10.1128\/jcm.03238-13","type":"journal-article","created":{"date-parts":[[2014,3,27]],"date-time":"2014-03-27T02:11:36Z","timestamp":1395886296000},"page":"1938-1946","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":26,"title":["Significantly Higher Cytokine and Chemokine Levels in Patients with Japanese Spotted Fever than in Those with Tsutsugamushi Disease"],"prefix":"10.1128","volume":"52","author":[{"given":"Katsunori","family":"Tai","sequence":"first","affiliation":[{"name":"First Department of Internal Medicine, Faculty of Medical Sciences, University of Fukui, Eiheiji, Fukui, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiromichi","family":"Iwasaki","sequence":"additional","affiliation":[{"name":"Department of Infection Control and Prevention, Faculty of Medical 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