Ames dwarf mice and Snell dwarf mice lack growth hormone (GH), prolactin (PRL), and thyroid-stimulating hormone (TSH), live much longer than their normal siblings, and exhibit many symptoms of delayed aging. "Laron dwarf mice," produced by targeted disruption of the GH receptor/GH-binding protein gene (GHR-KO mice), are GH resistant and also live much longer than normal animals from the same line. Isolated GH deficiency in "little" mice is similarly associated with increased life span, provided that obesity is prevented by reducing fat content in the diet.
A multifaceted study was conducted to identify differences in biopsychosocial characteristics between a clinical group of 59 married women who complained of inhibited sexual desire (ISD) and 31 married women who expressed normal sexual desire (non-ISD). Areas of examination included personality, endocrine, relationship, and sexual dimensions. Instruments of data collection included the MMPI, Dyadic Adjustment Scale, radioimmunoassay of testosterone and prolactin levels, and a questionnaire which focused on demographic, relationship, and sexual information.
A sound theoretical basis supported by scientifically measured physiological parameters is needed to gain medical support for animal-assisted therapy. Six neurochemicals associated with a decrease in blood pressure were measured in humans (n=18) and dogs (n=18) before and after positive interaction. Results (P<.05) indicated that in both species the neurochemicals involved with attention-seeking or attentionis egens behavior have increased. This information can be used as a rationale for animal-assisted therapy.
Early-stage romantic love involves reorganization of neurohormonal systems and behavioral patterns marked by mutual influences between the partners' physiology and behavior. Guided by the biobehavioral synchrony conceptual frame, we tested bidirectional influences between the partners' hormones and conflict behavior at the initiation of romantic love. Participants included 120 new lovers (60 couples) and 40 singles.
In an attempt to separate the somatic and mental components of stress, groups of young male volunteers underwent running exercises and sauna baths, and roughly one year later had the same experiences recalled under hypnosis. In addition, experiments involving mental stress in the form of mental arithmetic were performed. A variety of physiological and biochemical parameters was measured on each occasion. Results for cardiovascular responses, renin-angiotensin-aldosterone, cortisol, testosterone, androstenedione, prolactin and growth hormone are reported.
Only a few studies have been reported in which suggestion was used to provoke pseudoseizures (PS). In these studies PS were video EEG monitored, and saline injections were administered as placebo. This method may be somewhat unethical and carries a low success rate. The authors, two child psychiatrists (GZ and DS) and a neurologist (NG), applied hypnosis to provoke PS which were monitored by video-EEG. Pre-, intra- and post-ictal serum prolactin levels were determined.
The present study describes the responses of cortisol, prolactin and growth hormone (GH) to emotions elicited during sessions in which an hypnoidal state was induced. The purpose of the study was to provide answers for the following questions: 1) Do sessions with an emotional content have more hormonal surges than baseline, relaxation-only, sessions? 2) Does the induction of a fantasy of pregnancy and nursing elicit a prolactin response? 3) Are there any associations between surges of different hormones?
Non-puerperal lactation and/or hyperprolactinemia in humans have been related to psychological variables in a variety of ways: (1) Non-puerperal nursing; (2) Pseudopregnancy; (3) Rapid weight gain; (4) Psychogenic galactorrhea; (5) Acute prolactin responses to psychological stress; (6) High prolactin levels in persons who cope passively in real life stress situations; (7) Paternal deprivation in women with pathological hyperprolactinemia; (8) Clinical onset of prolactinomas following life-events.
Dr. Ewin recently reported his research on two "remarkable" cases where hypnosis performed by a lay hypnotist was allegedly associated with the death of the subject. Commentary is provided about both cases. In the first case, it seems clear that the death was co-incident to the hypnosis. In the second case, Dr. Ewin speculates that hypnosis may have been related to the subject's death following her experience in a stage hypnosis show.
OBJECTIVE: The objective is to identify whether single 20 min massage sessions were safe and effective in reducing stress levels of isolated haematological oncology patients. DESIGN: Based on a randomised controlled trial, 39 patients were randomised to aromatherapy, massage or rest (control) arm. MEASURES: The measures were serum cortisol and prolactin levels, quality of life (EORTC QLQ-C30) and semi-structured interviews. Primary outcome measure was the fall in serum cortisol levels.