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1.
Summary Previous studies have pointed in the direction of sex differences as well as regional differences in the pineal gland of guinea pigs. In the present investigation these aspects were studied at the electron-microscopic level by quantitating different types of synaptic bodies, intrinsic to pinealocytes. The two major types of synaptic organelles, ribbons and spherules, did not exhibit regional or sex differences. Synaptic structures intermediate in appearance to ribbons and spherules were significantly larger in number in males in the distal region of the pineal gland, compared to females. As previous studies have shown that ribbon and spherule numbers undergo characteristic changes depending on the functional state of the pineal gland, it is concluded that, as far as the synaptic organelles are concerned, no clear-cut sex or regional differences appear to exist in the guinea pig pineal gland.  相似文献   

2.
Five diagnostic systems designed to differentiate infantile autism and early childhood schizophrenia were compared by deriving scores on 44 children referred consecutively to the same clinical center. While the autistic scales devised by Rimland, Polan and Spencer, Lotter, and the British Working Party correlated significantly, the degree of correspondence (35%) indicated that several children obtained high autistic scores in one system but low scores in another. The BWP's term schizophrenia has more correspondence with the term autism used by others than with Rimland's schizophrenia. In the DeMyer-Churchill categorical system (early schizophrenia, primary autism, secondary autism, and non-psychotic subnormal), primary autism most resembles Rimland's concept of infantile autism as measured by his E-1 version. All other systems differentiate psychotic from non-psychotic children but do not distinguish any of the psychotic subgroups.This study was supported in part by Public Health Service Grant No. MH05154 and also by LaRue D. Carter Memorial Hospital, State of Indiana, Indianapolis, Ind.The authors wish to thank Dr. Bernard Rimland for providing his scoring key.  相似文献   

3.
Summary In order to cut expenditure on mental health care in Brazil, the national authority responsible for the financing of health care imposed in 1977 the following two restrictions on reimbursement: a) the costs for inpatient treatment under the diagnoses neurosis and alcoholism would be paid only for a maximum length of hospital stay of 30 days and b) the costs for inpatient treatment under the diagnoses oligophrenias and epilepsies would no longer be paid. We studied the effects of these administrative measures upon the yearly frequencies of diagnoses and the mean lengths of hospital stay in 27377 treatment episodes between 1975 and 1982. We found significant decreases in both variables for the above mentioned diagnoses after 1977. At the same time the frequencies of the diagnoses alcoholic psychoses, psychoses associated with other cerebral conditions and other psychoses increased significantly. These findings can probably not be attributed to true changes in morbidity, but are rather the results of changes in diagnostic habits in response to administratively imposed austerity measures.  相似文献   

4.
Summary A unique model of DA system regulation is presented, in which tonic steady-state DA levels in the ECF act to down-regulate the response of the system to pulsatile DA released by DA cell action potential generation. This type of regulation is similar in many respects to the phenomenon proposed to mediate the action of norepinephrine on target neurons; i.e., an increase in the signal-to-noise ratio as measured by postsynaptic cell firing (Freedman et al., 1977; Woodward et al., 1979). However, in this model the signal and the noise are neurochemical rather than electrophysiological. Furthermore, the noise (tonic DA in the ECF) actually down-regulates the signal (phasic DA release) directly, and thereby provides a signal of its own that affects the system over a longer time-course. Therefore, the difference between signal and noise may also depend on the time frame under which such determinations are made.  相似文献   

5.
Summary The current study describes the presence of neuroendocrine antigens of peripheral and central neural tumors using eight monoclonal antibodies raised to small cell lung carcinoma (SCLC), which recognize neural/neuroendocrine or neural antigens, as defined by their reaction pattern in normal tissues and tumors. At least five of them recognize different epitopes of the neural cell adhesion molecule (N-CAM). It was found that all of 12 neuroblastomas, 2 ganglioneuroblastomas and 4 ganglioneuromas as well as 23 central primitive neuroectodermal tumors, 13 astrocytomas and 4 ependymomas share neural/neuroendocrine antigens (as defined by the anti-N-CAM antibodies Moc-1,-21,-32,-52 and-191) with SCLC. The neural/neuroendocrine antigen defined by Moc-171 was also found in all peripheral tumors, but only in further differentiated central tumors. Non-N-CAM related neural antigens (as defined by Moc-51 and-172) were found only in better-differentiated peripheral and central tumors, but they could be demonstrated in all three medulloblastoma cell lines studied. In addition, the antigen defined by Moc-51 was demonstrated in an immunoblot of a neuroblastoma cell line. Antibodies recognizing epithelia antigens of SCLC and other epithelia and their tumors (Moc-31 and-181) were non-reactive. It was concluded that these findings give further support for a relation between neural and neuroendocrine tumors and that some of the antibodies may be useful for the detection of differentiation in neural tumors. Antibodies with an epithelia recognition pattern may serve to distinguish neural from neuroendocrine tumors.Supported by NIH grant CA 36245 W.M.M. was a Fullbright scholar  相似文献   

6.
Summary Abnormalities of noradrenaline metabolism and of the activity of hypothalamic-pituitary adrenal axis (HPA) have been reported in depression. To study the possible relationship between these 2 parameters, urinary excretion of 3-methoxy-4-hydroxy-phenylethyleneglycol (MHPG) and Dexamethasone Suppression Test (DST) were analyzed in 58 depressed patients. A positive correlation was found between the age of depressed patients and 24-h urinary excretion of MHPG. Twenty-two patients (38%) were DST non suppressors. Pre-DST plasma cortisol levels were significantly higher in non suppressors than suppressors. No difference was found however between urinary MHPG levels in supressors and non suppressors. There was no correlation between pre-DST plasma cortisol and levels of urinary excretion of MHPG. These results do not support the hypothesis of a relationship between these 2 parameters. However, when depressed patients were separated into two groups according to urinary excretion of MHPG (high MHPG and low MHPG), the high MHPG group included significantly more non suppressors then the low MHPG one. This result is not sufficient to demonstrate of link between HPA system activity and central noradrenaline metabolism.  相似文献   

7.
Summary An electron microscopical study of two consecutive nerve biopsies from a patient with metachromatic leucodystrophy (sulphatide lipidosis) was made. The ultrastructural changes observed consisted of: a) irregular whorls of myelin. The myelin in the whorls showed a thickened, sometimes doubled, intraperiod line, which was barely visible in compact myelin; b) inclusion bodies up to 1 in diameter in the cytoplasm of Schwann cells. These had a lamellar structure, with stacked membranes 60 Å apart; c) a loose pattern of the myelin in some nerve fibers, with loss of the intraperiod line, and d) presence of abnormally dense mitochondria with thickened cristae in Schwann cells. It is suggested that: a) the whorl formation and the ultrastructural abnormalities of the myelin in the whorls may be due to impaired myelin synthesis, and b) that the inclusion bodies may represent the accumulation of cerebroside sulfate in micellar aggregates. The loose pattern of myelin is considered artifactural until proven otherwise.
Zusammenfassung Zwei aufeinanderfolgende Nervenbiopsien bei einem Patienten mit metachromatischer Leukodystrophie (Sulfatid-Lipoidose) wurden elektronenoptisch untersucht. Die beobachteten ultrastrukturellen Veränderungen bestehen in: a) unregelmäßigen Wirbelbildungen (whorls), in welchen das Myelin Verdickungen, manchmal Verdopplung des Zwischenstreifens (intraperiod line) aufweist, was im kompakten Myelin kaum sichtbar ist. b) Einschlußkörperchen mit einem Durchmesser bis zu1 im Cytoplasma der Schwann-Zellen. Diese weisen lamelläre Struktur mit einem Membranabstand von 60 Å auf. c) ein lockeres (loose) Myelinmuster mit Verlust des Zwischenstreifens in einigen Nervenfasern und d) Auftreten von abnorm dichten Mitochondrien mit verdicktem Cristae in Schwann-Zellen. Es wird angenommen, daß a) die Wirbelbildungen und die ultrastrukturellen Myelinabnormitäten in den Wirbeln einer gestörten Myelinsynthese entsprechen und b) daß die Einschlußkörperchen die Anhäufung von Cerebrosidsulfat in micellaren Verbänden darstellen. Das lockere Myelinmuster wird vorläufig als artifiziell angesehen.


This investigation was supported in part by Public Health Service Research Grant No. FR-86 from the N.I.H. Division of Research Facilities and Resources.  相似文献   

8.
Hyperkinetic children are identified as a population-at risk upon admission to kindergarten. The etiology of hyperkinetic behavior is controversial. Organic driveness, hyperkinetic behavior disorder, postencephalitic behavior, brain damage with behavioral and conceptual deficit, Strauss syndrome, have all been used to label essentially similar symptom constellations. Bypassing the area of controversy, a study is reported that demonstrates that children who were identified as hyperkinetic (using behavioral criteria developed in an earlier study) were (1) absent from school more frequently, and (2) did remarkably less well on standardized tests of school readiness than their peers rated nonhyperkinetic. The implications are discussed and suggestions made for the development of intervention programs.An earlier version of this paper was presented at the Annual Meeting of the American Orthopsychiatric Association, March, 1967.  相似文献   

9.
This paper concerns the relationship between authority structures and two problems reported in the literature as common to milieu or therapeutic community wards. Psychiatric wards with rational-legal and charismatic authority structures are found more likely to experience mood and morale swings on the part of patients and staff and to spend excessive time and energy changing ward rules.  相似文献   

10.
A well designed and executed case register for mental illness or other conditions can provide information not readily obtainable by any other method. This includes unduplicated counts of diagnosed cases of the disease and longitudinal information such as changes in diagnosis, outcome, and survival information. Registers often are the only way in which new cases can be identified with any certainty. Also, the register can serve as a sampling frame for more intensive studies of services and of prevalence of the disease in the community, genetic studies, studies of the cost of treating various types of patients, before and after comparisons, and many other sociological and epidemiologic investigations. At the same time, there are many problems and pitfalls to case registers. This paper outlines some of these difficulties and suggests that registers be established only after careful planning and preparation.This paper is based on a presentation for a Workshop on Case Registers, American Orthopsychiatric Association Meeting, Chicago, Illinois, March 20, 1964. An extended bibliography on case registers is available from the author.  相似文献   

11.
Summary Seven cases of meningiomas with pseudopsammoma bodies have previously been described in the literature. Two additional cases are presented. Electron microscopy of the cells surrounding the pseudopsammoma bodies reveals an ultrastructure different from that of the meningotheliomatous cells. It is concluded that meningotheliomatous meningiomas with pseudopsammoma bodies are mixed tumours, including a non-meningotheliomatous component, the origin and significance of which is uncertain.  相似文献   

12.
This study examined the attitudes of several diverse subject groups in a large medical center toward various mental health professionals. The groups consisted of: 1) general hospital staff; 2) professional mental health workers; and 3) psychiatric in-patients. Subjects evaluated a selection of 11 professional health related role titles (clinical psychologist, physician, psychiatrist, etc.) and the categories me and mental patient by marking a series of 19 seven-step rating scales, each composed of bipolar anchoring adjectives. Additionally, a familiarity rating for each of the role titles was obtained. An understanding and a value cluster were derived from the 19 adjectives along with an overall favorability-unfavorability score for each role title. It was expected that subjects would value mental health professional roles more strongly than they would indicate an understanding of these same roles. Secondly, it was expected that the hospital setting itself, the subject's role within that setting, and the degree of familiarity with the role being rated would have a significant impact on the subject's attitude. Results generally supported the above expectations. Overall ratings of the professional groups were consistently high, with less difference between the health designations (physician, nurse) and the psych designations than has been previously reported in the literature.  相似文献   

13.
Summary Two sporadic cases of amyloid polyneuropathy are reported. There was no family history or plasma cell dyscrasia. Both showed sensorimotor and autonomic polyneuropathy with onset in the seventh decade. Amyloid deposits in both cases reacted with anti-human prealbumin sera but not with antisera to human AA and anti-human immunoglobulin light-chain amyloids, including A and A. One patient had the abnormal serum prealbumin and abnormal DNA sequence found in type I familial amyloid polyneuropathy (FAP) (Japanese type). Investigations in sporadic amyloid polyneuropathy should include immunohistochemistry, using antisera to the different amyloid proteins, and the radioimmunoassay and recombinant DNA techniques for diagnosis of FAP.  相似文献   

14.
We have correlated a detailed clinical assessment of 67 patients with proven Becker muscular dystrophy with the results from genetic and protein analyses. There was an overall deletion frequency of 80%, rising to 92.6% in the large group of patients defined on clinical grounds as being of typically mild severity. The deletions in this group were all clustered in the region of the gene between exons 45 and 59; the most common deletion was of exons 45–47 and all but one started at exon 45. No similar deletions were seen in the patients with more severe disease, in whom the diverse genetic defects included a duplication and a very large deletion. Dystrophin patterns in the typical group were also very characteristic, and in both groups were as predicted from the genetic defect, the size of deletions being inversely proportional to the size of the protein produced.  相似文献   

15.
Summary Somatosensory evoked potentials (SEPs) were recorded in 20 patients with thalamic lesions confirmed by CT (10 with infarction, 10 with haemorrhage). The changes in SEP configuration are discussed in their relationship to clinical symptoms. Four types of SEP abnormality produced by thalamic lesion are distinguished: (1) FF type, (2) N20/P23 dissociation type, (3) N18/N20 false shift type, and (4) reduced early component type. It was shown that clinically similar lesions might produce different SEP patterns.  相似文献   

16.
Summary In a study of 118 psychiatric patients two questionnaires of similar content that are supposed to predict compliance with pharmacotherapy in psychiatry were examined, COSS and KK-Skala. These questionnaires assess the patient's attitudes towards his illness, pharmacotherapy, and the physician. Patient compliance was judged by the treating physicians. The results of discriminant analyses indicated that about two thirds of the patients were correctly classified into compliant and moderately or not compliant (as judged by the physicians) by means of COSS and KK-Skala, respectively. It is a matter for further research whether these results reflect in fact moderate associations between patient attitudes and compliant behavior or are due to limitations of the questionnaires and of the study design.  相似文献   

17.
Summary We employed a case-control study design to investigate whether schizophrenic patients differed from non-psychotic psychiatric patients in terms of place of birth and paternal occupation. Cases were first-contact schizophrenic patients ascertained from the Camberwell Cumulative Psychiatric Case Register. Controls were the next (non-psychotic) patient on the Register matched for age and sex. In comparison with controls, cases were more likely to have: (1) been born in the deprived innercity Camberwell catchment area (odds ratio 2.3), and (2) had fathers who had manual as opposed to non-manual occupations (odds ratio 2.1). The results were compatible with the notion that socio-economic deprivation during gestation and early life predisposes to later schizophrenia.  相似文献   

18.
In this paper we describe current difficulties in the diagnosis of infant psychopathology and two recent contributions to the assessment of infant psychopathology, KIDDIES, and Zero to Three. In order to accomplish this a literature review was completed regarding infant psychopathology and current diagnostic instruments. The literature supports the notion that there is a need for more empirical research in the area of infant psychopathologies and for more reliable and valid scales of infant psychopathology. Zero to Three and KIDDIES are useful tools in the assessment of psychopathology, and have complementary strengths.  相似文献   

19.
While the phrase, interminable foster care is becoming a damning cliché in the dialogues of juvenile courts and child welfare organizations, many children are growing up in foster homes. Human love must move us to approve and enrich these foster families; childhood is too brief and important to be knowingly allowed disapproved or impoverished experience. This paper describes the foster situation: families, children, and the involved professionals. It then presents a teachable developmental theory weaved from threads of numerous known theories, and describes a process whereby interminable foster experience was used therapeutically for a group of handicapped homeless children.  相似文献   

20.
Summary Four cases of early infantile polyneuropathy with defective myelination are reported. The peripheral nerve was studied by light and electron microscopy; different morphological characteristics have been noticed in these patients. Case 1 presented aspects of defective myelination with atypical onion bulb formation composed of multiple layers of basement membrane. In case 2, defective myelination and atypical onion bulb formation were associated with aberrant hypermyelination. Cases 3 and 4 were brothers, who presented axonal damage and atypical onion bulb formation.  相似文献   

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