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Effect of interstitial stereotactic radiosurgery on behavior and subjective handicap of epilepsy in patients with gelastic epilepsy. Epilepsy Behav 2004; 5:94-101. [PMID: 14751213 DOI: 10.1016/j.yebeh.2003.11.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Patients with symptomatic epilepsy due to hypothalamic hamartomas often are compromised not only by pharmacoresistant epileptic seizures but also by behavioral disturbances and cognitive dysfunction. We report the effect of successful treatment with stereotactic interstitial radiosurgery by intrahypothalamic implantation of 125I seeds on behavior and subjective handicap. In all patients rendered seizure-free or suffering only from auras, improvement of behavior was reported by parents and colleagues or schoolteachers. Parents' ratings according to the Child Behavior Checklist showed improvements with respect to social problems and attention. Self-ratings of quality of life by adult patients showed improvements in activities, working situation, and self-perception. These improvements were not observed in patients in whom clinically manifest seizures and interictal EEG discharges persisted after radiosurgery.
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Abstract
The effects of lead on the signal transduction pathways that may be involved in the release of gonadotropin-releasing hormone (GnRH) from neurons in the hypothalamus have not been well defined. Using the GT1-7 cell line, an in vitro model for GnRH-secreting neurons, we examined signal transduction pathways directly affected by lead. We found that lead-induced phosphorylation of extracellular signal-regulated kinase 1 and 2 (ERK1 and ERK2), as well as p90RSK and cAMP response element-binding protein (CREB), but did not induce IkappaB degradation. MEK1/2 inhibitor (PD98059) suppressed lead-induced ERK and p90RSK activation. Neither PKC inhibitors (Go6983, Go6976) nor CaMKII inhibitor (KN-62) had a pronounced effect on lead-induced ERK1 and ERK2 phosphorylation. However, MEK1/2 inhibitor, CaMKII inhibitor, and PKC inhibitor significantly suppressed lead-induced CREB phosphorylation. These results indicate that lead-activated PKC, CaMKII and MEK/ERK/p90RSK pathways simultaneously, all of which contributed to CREB phosphorylation. Our results also indicate that lead-induced p90RSK and CREB activation does not alter expression of early response genes like c-fos. We conclude that lead activates PKC, CaMKII or MEK-ERK-p90RSK pathways in GT1-7 cells, leading to CREB phosphorylation and modulation of gene expression.
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Abstract
The molecular cues regulating the migratory process of LHRH neurons from the olfactory placode into the brain are not well known, but gradients of chemotropic and chemorepellent factors secreted by the targets are likely to play a key role in guidance mechanisms. Hepatocyte growth factor/scatter factor (HGF/SF) is a pleiotropic cytokine inducing cell migration. It is involved in a variety of developmental processes through interaction with its receptor c-Met. Here we show that c-Met-antibody labels LHRH migrating neurons in the olfactory mesenchyme of E12 mouse and analyze the potential chemotropic effect of HGF/SF on two immortalized LHRH cell lines, GT1-7 and GN11, isolated from tumors developed in the hypothalamus and in the olfactory bulb, respectively. By RT-PCR analysis, Western blotting, and immunocytochemistry, we provide evidence for a high level of c-Met expression in GN11, but not in GT1-7, cells. In addition, HGF/SF treatment promotes specific migratory activity of GN11 cells, as demonstrated by collagen gel assay, time-lapse video microscopy, and Boyden's chamber experiments. Such promotion is inhibited by the neutralizing antibody. The data reported here represent the first direct evidence of a chemotactic effect of HGF/SF on immortalized LHRH neurons.
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[Chronic hyperosmolarity in hypothalamic lesions. On the pathogenesis of occult hypersalemic diabetes insipidus]. ACTA ACUST UNITED AC 1998; 40:872-8. [PMID: 13922707 DOI: 10.1007/bf01482928] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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6
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7
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Differential LHRH secretion, dye coupling, and protein expression in two morphologically distinct cell types identified in GT1-7 cultures. J Neuroendocrinol 1997; 9:467-78. [PMID: 9229357 DOI: 10.1046/j.1365-2826.1997.00596.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The immortalized neuronal cell line, GT1-7, has been shown to secrete LHRH in a pulsatile manner and to possess many other characteristics of hypothalamic LHRH neurons in vivo, and thus provides a potential model system for studying biochemical and physiological mechanisms regulating LHRH secretion. In the present study, two morphologically and functionally distinct types of cells have been identified in GT1-7 cultures and each type purified to over 95% homogeneity. One type (N cells) appeared more neuronal with extended neurites and somewhat rounded cell perikarya, while the other type (G cells) had flatter cell perikarya that contained filopodia but no neurites. Growth properties of the two cell types also differed. The doubling time for proliferation of N cells was nearly two-fold shorter than that for G cells and N cells displayed 'piling up' whereas G cells exhibited contact inhibition. Functionally, N cells, but not G cells, were dye-coupled as measured by a fluorescence photobleaching assay. While both cell types expressed LHRH, N cells released significantly higher levels of LHRH into the culture media and exhibited more intense LHRH immunostaining. The two cell types also showed differences in immunostaining for other proteins. N cells, unlike G cells, immunostained positive for neuron-specific enolase (NSE), whereas G cells, unlike N cells, stained immunopositive for vimentin. Both cell types expressed SV-40 T antigen protein, indicating that they were derived from the same transgenic mouse hypothalamic tumour. The physiological significance of these two cell types in GT1-7 cultures remains to be determined, but elucidation of their morphological and biochemical properties is intended to contribute to better understanding and application of this experimentally important neuroendocrine cell line.
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Immortalization of neuroendocrine cells by targeted oncogenesis. RECENT PROGRESS IN HORMONE RESEARCH 1991; 47:69-93; discussion 93-6. [PMID: 1745826 DOI: 10.1016/b978-0-12-571147-0.50007-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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9
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10
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THE INANITION SYNDROME IN INFANTS WITH ANTERIOR HYPOTHALAMIC NEOPLASMS. TRANSACTIONS OF THE AMERICAN NEUROLOGICAL ASSOCIATION 1963; 88:262-3. [PMID: 14272251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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11
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[Tumor of the hypothalamus]. RINSHO GEKA. JOURNAL OF CLINICAL SURGERY 1962; 17:777-82. [PMID: 14453084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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12
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[A case of injury of the hypothalamic region as a cause of severe emaciation]. PEDIATRIA POLSKA 1962; 37:735-9. [PMID: 13882908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
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13
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Hamartomatous malformation of the posterolateral hypothalamus. J Transl Med 1962; 2:89-97. [PMID: 13911743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/24/2023] Open
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14
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A hypothalamic hamartoma with dendritic proliferation and other neuronal changes associated with "blastomatoid" reaction of astrocytes. J Neuropathol Exp Neurol 1961; 20:219-36. [PMID: 13688607 DOI: 10.1097/00005072-196104000-00006] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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15
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16
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18
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A disturbance of carbohydrate metabolism caused by lesions of the central nervous system; report of a case in a child with a hypothalamic tumor and review of the clinical reports in the literature. J Pediatr 1959; 54:299-312. [PMID: 13631583 DOI: 10.1016/s0022-3476(59)80004-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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19
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[Early puberty in hyperplastic abnormalities of the hypothalamus (hamartoma)]. DER NERVENARZT 1959; 30:19-27. [PMID: 13644500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
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20
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21
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22
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[Pneumoradiographic localization of a right paramedian schwannoglioma of the anterior pillar of the cerebral fornix and the anterior hypothalamus]. JOURNAL DE RADIOLOGIE, D'ELECTROLOGIE & ARCHIVES D'ELECTRICITE MEDICALE 1958; 39:588-90. [PMID: 13588607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
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23
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25
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[Pathogenesis of hypothalamic hamartoma with & without precocious puberty]. DEUTSCHE ZEITSCHRIFT FUR NERVENHEILKUNDE 1958; 177:235-62. [PMID: 13547850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/23/2023]
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26
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[Anatomoclinical & physiopathological studies on the diencephalic-rhinencephalic region; discussion of a case of giant pituitary adeno ma with mental symptoms]. RIVISTA DI NEUROLOGIA 1957; 27:699-735. [PMID: 13528743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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27
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Clinicopathologic conference: carcinoma of the thyroid with pituitary and hypothalamic metastases and diabetes insipidus. BULLETIN. TUFTS-NEW ENGLAND MEDICAL CENTER 1957; 3:150-7. [PMID: 13460698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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28
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[Unusual case of precocious puberty caused by hypothalamic abnormality, so-called hamartoma of hypothalamus]. ARCHIVIO PER LE SCIENZE MEDICHE 1957; 103:161-78. [PMID: 13436206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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29
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Glioma of hypothalamus simulating chronic encephalitis; report of case. BULLETIN OF THE LOS ANGELES NEUROLOGICAL SOCIETY 1956; 21:199-202. [PMID: 13396436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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30
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[Hypothalamo-pituitary syndrome caused by a tumor]. HISPALIS MEDICA; REVISTA SEVILLANA DE MEDICINA Y CIRUGIA 1955; 12:563-70. [PMID: 13294753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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31
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Hypothalamic Tumor: Correlation between Symptomatology, Regional Anatomy, and Neurosecretion. Neurology 1955; 5:160-77. [PMID: 14356345 DOI: 10.1212/wnl.5.3.160] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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32
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Progressive hypothalamic dysfunction; observations on the effects of primary neoplastic destruction of the hypothalamus. J Pediatr 1954; 45:393-400. [PMID: 13202036 DOI: 10.1016/s0022-3476(54)80163-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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33
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[Pathology of the hypothalamus with special reference to the problem of central death]. IDEGGYOGYASZATI SZEMLE 1954; 7:65-70. [PMID: 13222990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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34
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[Brain tumors involving the hippothalamus and without symptoms]. ARCHIVIO "DE VECCHI" PER L'ANATOMIA PATOLOGICA E LA MEDICINA CLINICA 1954; 22:753-82. [PMID: 14362764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/26/2023]
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35
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36
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37
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[Original cisternographic picture in two cases of precocious puberty]. Minerva Pediatr 1953; 5:1002-4. [PMID: 13144594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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38
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39
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[Certain data on metabolism in hypophyseo-hypothalamic tumors before and after roentgen irradiation]. VOPROSY NEIROKHIRURGII 1953; 17:49-55. [PMID: 13102973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
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40
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[Gliomas of the brain stem. I. Study of a gangliocytoma of the pons penetrating into the hypothalamic region]. ACTA NEUROLOGICA ET PSYCHIATRICA BELGICA 1953; 53:355-65. [PMID: 13079693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
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41
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[Precocious puberty in a case of tumor in the hypothalamic area and Recklinghausen's disease]. ACTA ENDOCRINOLOGICA 1952; 10:66-88. [PMID: 14943404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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42
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[Hypothalamus and pituitary tumors]. ACTA ENDOCRINOLOGICA IBERICA 1952; 2:23-63. [PMID: 14952217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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43
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Diabetes insipidus and adiposogenital syndrome in a dog due to an infundibuloma. THE CORNELL VETERINARIAN 1951; 41:445-58. [PMID: 14887341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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44
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45
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[Some cases of glioma of the anterior hypothalamus and their surgical treatment]. Rev Neurol (Paris) 1951; 84:468-72. [PMID: 14883628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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46
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Notes on diabetes insipidus in connection with two cases of a hypothalamical tumour. FOLIA PSYCHIATRICA, NEUROLOGICA ET NEUROCHIRURGICA NEERLANDICA 1951; 54:6-33. [PMID: 14872967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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47
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[Different groups of hypothalamic pubertas praecox. I. Anatomically and clinically homogenous group in tumors of the tuber cinereum on the basis of hyperplastic malformation]. DEUTSCHE ZEITSCHRIFT FUR NERVENHEILKUNDE 1951; 166:499-545. [PMID: 14936729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
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48
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Differences and similarities in symptoms of hypophysectomy and tumors of the hypothalamic areas. THE BIOLOGICAL REVIEW OF THE CITY COLLEGE 1949; 11:28-33. [PMID: 18125751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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49
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[Early puberty and hypothalamic tumor]. LA SEMAINE DES HOPITAUX : ORGANE FONDE PAR L'ASSOCIATION D'ENSEIGNEMENT MEDICAL DES HOPITAUX DE PARIS 1948; 24:3063-3069. [PMID: 18108227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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50
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[Glioma of the hypothalamic region]. Minerva Med 1947; 38:77-83. [PMID: 18920184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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