Search PubMed⌕ Search

Biomedical subjects

I Oswald

Publications and source records attributed to I Oswald.

At least 91 records · Page 5Linked to original sources
PubMed1977

Viloxazine, sleep, and subjective feelings.

The sleep of eight volunteers (mean age 55) was recorded electrophysiologically while viloxazine 200 mg was taken daily for 3 weeks, preceded and followed by a week of matching blanks. The volunteers also made ratings of their feelings on visual analogue scales. Another 15 volunteers (mean age 34) took viloxazine 300 mg daily for 3 weeks, preceded and followed by 3 weeks of matching blanks, and they also made daily ratings of feelings. The drug diminished sleep duration and caused more frequent and longer transitions into wakefulness and drowsiness. Slow-wave sleep decreased and stage 2 increased. REM sleep was markedly reduced, especially initially, and there was a withdrawal rebound. Viloxazine impaired subjective concentration mood, and quality of sleep. Three volunteers, however, had striking mood elevation. The drug caused a small loss of weight, which correlated with gastrointestinal symptoms. Three older subjects experienced withdrawal vomiting and prostration. Viloxazine shares properties with imipramine and with amphetamines.

Adult↗
PubMed1977

Effect of oestrogen on the sleep, mood, and anxiety of menopausal women.

A double-blind controlled study of the effect of piperazine oestrone sulphate on sleep, depression, anxiety, and hot flushes was performed in 34 perimenopausal women. Half of the patients were given six weeks' placebo followed by eight weeks' oestrogen, and half remained on placebo throughout. Sleep was recorded electrophysiologically every week, and mood and anxiety were rated daily by means of visual analogue scales. Hot flushes were counted daily. Observer rating scales of anxiety and depression were complete at intervals. During the first month of active treatment the amount of intervening wakefulness in the first six hours of sleep decreased significantly more in the oestrone group than in those on placebo. Between the baseline period and the second treatment month the oestrone group showed a significantly greater decrease in the total amount of intervening wakefulness and in the frequency of awakenings. Their total amount of rapid eye movement sleep increased. Mood and anxiety improved and the number of hot flushes decreased to a similar degree in both groups. Although oestrogen did reduce the number of episodes of wakefulness in perimenopausal women complaining of insomnia, its effects on their psychological symptoms were little different to those of placebo.

Anxiety↗
PubMed1977

Acupuncture analgesia: an experimental investigation.

A study was designed to establish whether acupuncture has any analgesic properties beyond those of suggestion. In three one-hour experimental sessions the increases in detection thresholds and tolerances for thermal pain at six body locations on 12 subjects were compared. A control session (without needles) was followed by one session in which electrically stimulated needles were inserted in accord with Chinese practice, and another in which the needles were inserted to avoid all recognised acupuncture "points." Acupuncture was significantly more effective than suggestion in raising overall body pain thresholds but just below significance for tolerances. A significant disproportionate effect on the epigastrium, predicted by the choice of acupuncture points, was found for tolerances but not thresholds.

Abdomen↗
PubMed1976

Why do we sleep?

Explore the source record for details and available documents.

Biological Clocks↗
PubMed1976

Do placebos alter sleep?

Deliberate suggestion that an inert capsule was a sleeping pill was found not to influence subjective ratings of sleep quality or anxiety or the electrophysiologically recorded features of sleep in 10 volunteers aged 41-62 years.

Adult↗
PubMed1976

Mesoridazine and human sleep.

1 Mesoridazine, a phenothiazine of short half-life, and potentially useful as an hypnotic, has here been investigated using volunteers of late middle age. 2 The electrophsiological recording of all-night sleep was studied in seven subjects for a 7-week period during which ther received mesoridazine (10 mg nightly) for 3 weeks. The drug reduced the frequency of transitions into wakefulness and stage 1 (drowsiness) and reduced the time spent in stage 1; there was a withdrawal rebound. Mesoridazine increased REM sleep above baseline levels and a rebound fall below baseline occurred on withdrawal. The drug did not alter the amount of stage 3 + 4 slow wave sleep. 3 Subjective self-ratings were assessed in a 6-week study of sixteen subjects. Sleep quality improved on mesoridazine (10 mg nightly) but there was diminution of zest and freshness 20 min after rising. Daytime concentration and anxiety were rated as not affected either by administration or withdrawal.

Aged↗
PubMed1976

Anxiety and sleep after fosazepam.

1 Six volunteers of mean age 59 years received placebo for week, then fosazepam (60 mg) nightly for 3 weeks, then placebo for 3 weeks. Subjective ratings and all-night electrophysiological recordings were made. 2 Fosazepam administration improved subjective sleep quality nut impaired feelings of morning vitality. Its withdrawal was associated with anxiety, impaired concentration and continuing impairment of morning vitality. Measured sleep duration increased on fosazepam, sleep was less broken, slow wave sleep stages 3 and 4 diminished in duration and so did REM sleep. 3 Despite the short-life of fosazepam some drug effects persisted for several days after withdrawal, suggesting action of a long half-life metabolite.

Anxiety↗
PubMed1975

Apha-adrenergic receptor blockade increases human REM sleep.

1 An alpha-adrenergic receptor blocking agent, thymoxamine (150 mg i.v.) in the early night sleep of young adults increased REM sleep duration and also brief awakenings in the early night, while slow wave sleep, stage 3+4, was diminished. In the later night, however, stage 3+4 sleep was increased. Control experiments demonstrated that thymoxamine (i.v.) was without effect on blood pressure. 2 REM sleep duration may be inversely proportional to noradrenaline available at central alpha-adrenoceptors, but the control mechanisms for REM sleep appear interdependent with those for NREM sleep.

Adult↗