1.Study on cytotoxic activities of some derivatives of 5- nitrofurfural
Pharmaceutical Journal 2003;321(1):18-20
Six derivatives of 5-nitrofurfural were evaluated for their cytotoxic activities. The cytotoxic effect has been tested in vitro on the tumor cell lines KB and FI. All six tested compounds demonstrated a significant cytotoxic effect in both examined tumor cell lines. Among these, the compound H25 showed the highest activity
Pharmacy
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chemistry
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Activity Cycles
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drugs
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Furaldehyde
2.Changes in circadian sleep-wake and rest-activity rhythms during different phases of menstrual cycle.
Hong-Yan LIU ; Ai-Min BAO ; Jiang-Ning ZHOU ; Rong-Yu LIU
Acta Physiologica Sinica 2005;57(3):389-394
The results of previous studies on the menstrual-related sleep changes were inconsistent. The menstrual-related circadian sleep-wake and rest-activity rhythms changes are still uncertain. Using actigraphic monitoring of wrist activity, we investigated the sleep-wake and rest-activity patterns of 12 normally cyclic healthy women during reproductive life. Multivariate analyses were performed during the four phases of the menstrual cycle: menstrual phase (lst to 5th day of menstrual cycle), late follicular/peri-ovulation phase (11th to 15th day), early to mid luteal phase (18th to 23rd day) and late luteal phase (25th to 28th day), respectively. The variables of circadian sleep-wake pattern were similar in the four phases, except an increased tendency of the sleep latency in peri-ovulation phase compared with the early to mid-luteal phase (19+/-18 vs 9+/-6), but unfortunately no statistical significance were found (P<0.10). Concerning the circadian patterning of rest and activity, the interdaily stability (IS) in menstrual phase was significantly higher than the early to mid luteal phase (P<0.05). In early to mid luteal phase, the M10 onset time was significantly earlier compared with that of the late follicular/peri-ovulation phase (P<0.05), and the cosinor peak time was significantly earlier compared with that of the late luteal phase (P<0.05). The circadian periodogram calculated the period length of the rhythm of average woman. The average length was (24.01+/-0.29) h, and there was no significant difference among the four menstrual phases. The results suggest that the phase of circadian rest-activity rhythm may be modulated by the menstrual cycle, but the quantity and quality of the rest-activity rhythm have no essential different, and that menstrual cycle may have no effects on the circadian sleep-wake rhythm in normally cyclic healthy women.
Activity Cycles
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physiology
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Circadian Rhythm
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Female
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Humans
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Luteal Phase
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physiology
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Menstrual Cycle
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physiology
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Sleep
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physiology
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Wakefulness
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physiology