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Biomedical subjects

K Gold

Publications and source records attributed to K Gold.

23 records · Page 2Linked to original sources
PubMed1986

Effects of intermittent pneumatic calf compression on postoperative thrombin and plasmin activity.

A previous study of neurosurgical patients demonstrated an imbalance between thrombin and plasmin action following surgery. The present study was designed to determine the effect of intermittent pneumatic calf compression on postoperative enzyme activity. Fibrinopeptide A (FPA) and B beta 1-42 levels, reflecting thrombin and plasmin action respectively, were measured daily in patients undergoing elective craniotomy. Two of 9 patients not receiving calf compression developed positive fibrinogen leg scans, while none of 5 patients receiving prophylaxis had positive scans. Calf compression was associated with a markedly altered pattern of changes in the fibrinopeptide values following surgery. Without compression, there was perturbation of the balance between thrombin and plasmin action on the day after surgery as reflected by an increase in the FPA/B beta 1-42 ratio. In contrast, in those receiving prophylaxis there was no change in this ratio on the first postoperative day. Calf compression both blunted the mean postoperative increase in the FPA level (1.8 nM vs 4.7 nM; p less than .05) and augmented the mean B beta 1-42 value (3.0 nM vs 0.2 nM; p less than .05) so that the mean increase in the FPA/B beta 1-42 ratio was only 0.1 with calf compression as compared to 2.2 without it (p less than .05). Systemic modulation of both the coagulation and fibrinolytic pathways thus occurred in association with calf compression.

Adult↗
PubMedDate not supplied

Isolated visual hallucinations and the Charles Bonnet syndrome: a review of the literature and presentation of six cases.

Vivid visual hallucinations without other psychopathology have been reported for several hundred years. However, there is no consensus on whether these hallucinations should be considered a separate syndrome, the Charles Bonnet syndrome, or whether eye disease or brain disease is a necessary or exclusionary criterion for diagnosing this syndrome. In an attempt to resolve these issues, this article reviews the literature on isolated visual hallucinations and presents follow-up data from six cases. Criteria for diagnosing the Charles Bonnet syndrome are suggested.

Aged↗
PubMedDate not supplied

Investigation of mechanisms linking depressed mood to nicotine dependence.

The present study examined the cognitive-behavioral linkages between depressed mood and level of nicotine dependence in smokers seeking smoking cessation treatment. Prior to treatment, 202 subjects completed validated self-report measures of smoking history, depressive symptomatology, "self medication" processes, "learned helplessness" processes, and nicotine dependence. Results revealed that 48% of the study population scored in the "depressed" range on the Center for Epidemiologic Studies (CESD) depression scale. Further, these smokers reported significantly higher levels of nicotine dependence than other nondepressed smokers. Depressed and nondepressed smokers did not differ with respect to several cognitions related to learned helplessness theory. However, depressed smokers were more likely to report "self medication" processes (i.e., negative affect reduction smoking and stimulation smoking). In addition, multivariable regression and path analyses suggested that negative affect reduction smoking and stimulation smoking are sequential mediators of the depression-nicotine dependence relationship. These results underscore the need to screen for depressive symptomatology among smokers seeking treatment, and to develop cessation treatments that are tailored to the needs of depressed smokers.

Adolescent↗