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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Reanimatology is a science aimed at preventing central nervous system (CNS) destruction and completely restoring function after terminal states and clinical death. The most important present trends in reanimatology are the study of the limits of ischemic tolerance by cerebral cortical neurons and investigations into the basic mechanisms of pathology and viability during and after hypoxia. After terminal states there are changes in the content, electrophoretic patterns and physico-chemical properties of brain proteins, and in lysosomal and cytoplasmic hydrolase activities. Cell membrane permeability is increased and brain ATP content is decreased. At 14 to 21 days after resuscitation, brain RNA and later DNA levels are reduced, reflecting posthypoxic cerebral dysfunction. Guidelines for the prevention and therapy of postresuscitation encephalopathy are presented. There seem to be specific indications and contraindications for brain stimulation versus depression during recovery. There are advanced methods for treating clinical death. Treatments of postresuscitation pulmonary, cardiovascular, and renal complications using hemodialysis and blood detoxification appear promising.
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PMID:Reanimatology and its urgent problems. 674 8

Body movements during sleep were observed in 14 full-term sick newborn infants such as perinatal asphyxia, purulent meningitis, meconium aspiration syndrome, melena, porencephaly, and hydranencephaly. Five newborn infants who had recovered from transient vomiting were examined as control. Infants with minimally depressed background EEG showed an increase of generalized movement (GM) and localized tonic movement (LTM) in quiet sleep. Hydranencephalic infants revealed an increase of generalized phasic movement (GPM) in active and quiet sleep. On the other hand, a decrease or an absence of body movements was observed in infants with severe EEG abnormalities such as moderate, marked and maximal depression. Hydranencephalic and porencephalic neonates showed a decrease of LTM in active sleep. One infant with purulent meningitis, showing markedly depressed EEG, revealed GPM-like movements of much longer duration. The follow-up study revealed that the absence of body movements or the increase of GPM might indicate a very poor outcome, whereas the presence of LTM, even in a small amount, suggested the preservation of cortical functions. The increase of body movements was also considered to correlate with sleep disturbance and served to indicate a brain dysfunction.
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PMID:Body movements during sleep in full-term newborn infants. 706 77

In order to examine the possibility of neuropsychological impairment in juvenile delinquency, 99 adolescents (male = 64, female = 35) consecutively admitted to a residential treatment center for delinquents were assessed using the Halstead-Reitan Battery and 12 additional neuropsychological tests. For comparison purposes, a nondelinquent control group comprised of 47 adolescent volunteers (male = 29, female = 18) from regular classrooms were also assessed. No significant differences were found between the two groups in age, sex, or handedness. Clinical interpretation of the neuropsychological test profiles revealed a greater percentage of abnormal profiles within the delinquent than nondelinquent group (84 vs. 11 per cent) and a specific pattern of deficits implicating anterior dysfunction that was greater in the nondominant (right) than dominant hemisphere. Discriminant function analysis based on 12 neuropsychological test factors or the Wechsler Intelligence Scale subtests correctly classified approximately 85 per cent of the delinquents and nondelinquents. The particular pattern of deficits implicating anterior cerebral dysfunction that was predominately localized to the right hemisphere is discussed with regard to a significantly lower than average number of violent adolescents in this sample and the high percentage of delinquents exhibiting characteristics of depression.
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PMID:Neuropsychological impairment of persistent delinquency. 706 11

One hundred psychotic patients referred to a consultation service in a general hospital were compared with 50 psychotic patients without physical illness in a psychiatric unit. Background, mental and cognitive state were evaluated. In addition to providing a list of likely causes of cerebral dysfunction in such a sample, the study revealed an increased incidence of prior depression in those with cerebral dysfunction, and identified a group where psychosocial factors appeared more significant than cerebral dysfunction in determining the psychosis. The various ways in which a psychosis can be associated with a physical condition, and the various forms that it can take even when cerebral dysfunction is present, are discussed.
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PMID:Physical illness and psychosis. 737 Apr 76

Psychostimulants used in the treatment of psychiatric conditions, including depression, alleviate some of the observed psychomotor retardation. We describe 3 patients with impairments of arousal and psychomotor speed secondary to tumor-related organic brain dysfunction who benefited from stimulant therapy.
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PMID:Methylphenidate in the treatment of neurobehavioral slowing associated with cancer and cancer treatment. 758 Jan 96

Neurobehavioral and electrophysiologic studies were carried out to determine the effect of diabetes mellitus on brain function. Fifty one non-insulin-dependent diabetic patients were compared with 30 nondiabetic controls that are equally matched in age, sex and educational level. The aim of this study was to determine the change of brain function in diabetics, and to evaluate the correlation between brain function and clinical factors. The results showed: In the diabetic group, 'the Clinical Memory Test' performances on MQ, the five subtests were respectively lower than those of the controls. 'The Fourth Exception Test', 'the Motor Stability Test' and 'the Hospital Anxiety and Depression Scale' results were significantly disordered, too. The latencies of wave I, III, V of BAEP, wave N65 P100 N125 P160 of VEP, wave P1 N1 P2 N2 N3 P4 of SEP and the interpeak latency of I-V of BAEP were prolonged significantly compared with the controls. Within the diabetics, there was correlation between I-V interpeak latency of BAEP, P100 peak latency of VEP and serum creatinine. These results demonstrate that brain dysfunction are present in NIDDM, and these brain dysfunction correlate with the kidney function.
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PMID:[Decreased brain function in patients with non-insulin-dependent diabetes mellitus]. 760 81

The Cognitive Estimation Test (CET) was devised by Shallice & Evans (1978) in an attempt to quantify the tendency observed in some patients with frontal lobe lesions to produce bizarre estimates in response to questions to which people do not usually know exact answers (e.g. 'what is the height of a double-decker bus?'), despite performing normally on standard intelligence tests. In the present study, the CET performance of a large number of patients suffering from head injury, brain tumour, ruptured aneurysm (anterior communicating artery and other), multiple sclerosis, dementia, encephalitis, Korsakoff's syndrome and anxiety/depression were compared with CET scores from 150 healthy controls. Patients with Korsakoff syndrome demonstrated significantly impaired CET performance. A subgroup of patients with discrete frontal lesions was compared with a group with localized non-frontal lesions. No significant difference in CET performance was observed between anterior and posterior lesioned patients. The sensitivity of the CET to anterior brain dysfunction is called into question by the present findings.
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PMID:Cognitive estimation in neurological disorders. 764 13

Thirty-one individuals awaiting trial or sentencing for murder or undergoing an appeal process requested a neurologic examination through legal counsel. We attempted in each instance to obtain EEG, MRI or CT, and neuropsychological testing. Neurologic examination revealed evidence of "frontal" dysfunction in 20 (64.5%). There were symptoms or some other evidence of temporal lobe abnormality in nine (29%). We made a specific neurologic diagnosis in 20 individuals (64.5%), including borderline or full mental retardation (9) and cerebral palsy (2), among others. Neuropsychological testing revealed abnormalities in all subjects tested. There were EEG abnormalities in eight of the 20 subjects tested, consisting mainly of bilateral sharp waves with slowing. There were MRI or CT abnormalities in nine of the 19 subjects tested, consisting primarily of atrophy and white matter changes. Psychiatric diagnoses included paranoid schizophrenia (8), dissociative disorder (4), and depression (9). Virtually all subjects had paranoid ideas and misunderstood social situations. There was a documented history of profound, protracted physical abuse in 26 (83.8%) and of sexual abuse in 10 (32.3%). It is likely that prolonged, severe physical abuse, paranoia, and neurologic brain dysfunction interact to form the matrix of violent behavior.
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PMID:Neurologic abnormalities in murderers. 896 Jul 68

Maintenance of cerebral perfusion pressure is a prerequisite for the prevention of cerebral ischemia. Physiological fluctuations in systemic perfusion pressure are compensated by cerebrovascular autoregulation. Cerebral hypoperfusion could result from (1) systemic hemodynamic failure (eg, distal to severe arterial stenosis), overcharging the vasoregulatory capacity; (2) dysfunction and exhaustion of cerebrovascular autoregulation; or (3) both. Ultrasound offers an excellent temporal resolution, is noninvasive, and is easily applicable for follow-up investigations. Despite its poor spatial resolution, transcranial Doppler sonography has been used for determination of cerebral perfusion reserve studies measuring cerebral blood flow velocity (CBFV) during hypercapnia or application of vasoactive agents (eg, acetazolamide). This approach evaluates vasomotor regulation in patients with hemodynamic compromise distal to severe stenosis or occlusion of the brain supplying arteries. Monitoring CBFV during tilt table examinations directly measures cerebral autoregulation. In patients with systemic orthostatic hypotension, maintainance or failure of cerebrovascular compensation and, even more importantly, cerebrovascular dysautoregulation, despite normal systemic blood pressure regulation, may be demonstrated. Vasoneuronal coupling is reflected by CBFV variations during appropriate neuronal stimulation. Neuronal dysfunction is associated with CBFV abnormalities as exemplified by preconditions of focal cerebral dysfunction in the posterior cerebral artery (PCA) in migraineurs with aura, where massive alteration of vasoneuronal coupling and ischemia is threatening during spreading depression. A highly significant asymmetric gain of vasoneuronal coupling in the interictal state may act as a trigger mechanism in these patients. Testing for vasoneuronal coupling within the middle cerebral artery (MCA) territory is more difficult due to the poor spatial resolution with various neuronal stimuli (eg, motorsensory or cognitive paradigms), only eliciting local neuronal areas underrepresented in the MCA CBFV global changes. However, motor stimulation evoked CBFV may be used to indicate dysintegration of vasoneuronal coupling in the course of acute cerebral ischemia with sensorimotor hemiparesis and, moreover, seems to be of prognostic value regarding the motor deficit.
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PMID:Cerebrovascular regulation and vasoneuronal coupling. 769

We evaluated the neuropsychological and personality profiles of 25 patients with chronic myelogenous leukemia treated with interferon alfa (IFN-alpha). This group of persons performed well below expectation on tests of cognitive speed, verbal memory, and executive functions. Personality changes included depression, increased somatic concern, and stress reactions. A control group of leukemia patients not treated with IFN-alpha had significantly better cognitive speed and mood. The pattern of cognitive and personality changes in patients receiving IFN-alpha is highly suggestive of frontal-subcortical brain dysfunction.
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PMID:Pattern of neurobehavioral deficits associated with interferon alfa therapy for leukemia. 871 Jan 13


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