PubMed · 10969290
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C D Kurth, J M Steven. 2000. Keeping a cool head.. https://doi.org/10.1097/00000542-200009000-00006
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We have developed a high-definition thermal-imaging technique that can detect attempted deceit by recording the thermal patterns from people's faces. This technique has an accuracy comparable to that of polygraph examination by experts and has potential for application in remote and rapid security screening, without the need for skilled staff or physical contact.
OBJECTIVE: To determine if estrogen ameliorates hot flashes by raising the core body temperature sweating threshold, by reducing core body temperature fluctuations, and/or by reducing sympathetic activation (as measured by plasma 3-methoxy-4-hydroxyphenylglycol). DESIGN: Laboratory physiological study. SETTING: University medical center. PATIENT(S): Twenty-four healthy postmenopausal women reporting frequent hot flashes. INTERVENTION(S): Participants were randomly assigned, in double-blind fashion, to receive 1 mg/d 17beta-estradiol orally or placebo for 90 days. MAIN OUTCOME MEASURE(S): Core body temperature, core body temperature fluctuations, mean skin temperature, sternal sweat rate, laboratory hot flash counts (sternal skin conductance), plasma 3-methoxy-4-hydroxyphenylglycol. RESULT(S): The E(2) group had significant increases in plasma E(2) (8 +/- 2 vs. 132 +/- 22 pg/mL) and core body temperature sweating threshold (37.98 +/- 0.09 vs. 38.14 +/- 0.09 degrees C) and decreases in plasma FSH (58.8 +/- 8.9 vs. 40.1 +/- 7.6 mIU/mL) and hot flashes (1.4 +/- 0.5 vs. 0.6 +/- 0.6). These changes did not occur in the placebo group. There were no significant changes in any other measure. CONCLUSION(S): E(2) ameliorates hot flashes by raising the core body temperature sweating threshold, but does not affect core temperature fluctuations or plasma 3-methoxy-4-hydroxyphenylglycol.