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Zika virus infection in pregnancy: a protocol for the joint analysis of the prospective cohort studies of the ZIKAlliance, ZikaPLAN and ZIKAction consortia. BMJ Open 2020; 10:e035307. [PMID: 33323426 PMCID: PMC7745317 DOI: 10.1136/bmjopen-2019-035307] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Zika virus (ZIKV) infection in pregnancy has been associated with microcephaly and severe neurological damage to the fetus. Our aim is to document the risks of adverse pregnancy and birth outcomes and the prevalence of laboratory markers of congenital infection in deliveries to women experiencing ZIKV infection during pregnancy, using data from European Commission-funded prospective cohort studies in 20 centres in 11 countries across Latin America and the Caribbean. METHODS AND ANALYSIS We will carry out a centre-by-centre analysis of the risks of adverse pregnancy and birth outcomes, comparing women with confirmed and suspected ZIKV infection in pregnancy to those with no evidence of infection in pregnancy. We will document the proportion of deliveries in which laboratory markers of congenital infection were present. Finally, we will investigate the associations of trimester of maternal infection in pregnancy, presence or absence of maternal symptoms of acute ZIKV infection and previous flavivirus infections with adverse outcomes and with markers of congenital infection. Centre-specific estimates will be pooled using a two-stage approach. ETHICS AND DISSEMINATION Ethical approval was obtained at each centre. Findings will be presented at international conferences and published in peer-reviewed open access journals and discussed with local public health officials and representatives of the national Ministries of Health, Pan American Health Organization and WHO involved with ZIKV prevention and control activities.
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LGI1-antibody associated epilepsy successfully treated in the outpatient setting. J Neuroimmunol 2020; 345:577268. [PMID: 32480242 PMCID: PMC7339132 DOI: 10.1016/j.jneuroim.2020.577268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 05/12/2020] [Accepted: 05/19/2020] [Indexed: 01/17/2023]
Abstract
We report six patients with anti-LGI1 associated epilepsy. Two patients presented with new-onset generalized tonic-clonic seizures, four developed faciobrachial dystonic seizures and two piloerection. All patients had significant cognitive complaints at the time of diagnosis. All patients described seizure reduction during the first week of carbamazepine, and seizure freedom was obtained at a median of 13 days (range 7-22), sustained after the initiation of immunosuppression. Median time from symptom onset to carbamazepine initiation was 164 days (range 38-206 days). We discuss the particular seizure response to sodium channel blocking antiepileptic drugs, alone or associated with immunosuppression in this antibody mediated seizures.
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Real-world impact of glucocorticoid replacement therapy on bone mineral density: retrospective experience of a large single-center CAH cohort spanning 24 years. Osteoporos Int 2020; 31:905-912. [PMID: 31897546 DOI: 10.1007/s00198-019-05268-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 12/15/2019] [Indexed: 10/25/2022]
Abstract
UNLABELLED The congenital adrenal hyperplasia population seems to have an intrinsic tendency to a high frequency of low bone mass. However in this single-center and long-term evaluated cohort, the simplified corticoid regimen, with exclusive dexamethasone single dose reposition during adulthood, did not represent a risk factor for decrease in bone health. INTRODUCTION The impact of long-term and supposedly physiological doses of gluco and mineralocorticoid (GC/MC) on bone mineral density (BMD) in congenital adrenal hyperplasia (CAH) remains discordant among studies, which contain different clinical forms and corticoid regimens. Our aim was to evaluate the BMD in CAH adults receiving similar GC regimen since childhood and to correlate it with GC/MC cumulative doses. METHODS Only patients with good compliance, who used cortisone acetate (CA) during childhood and dexamethasone after the final height achievement. Cumulative GC/MC doses were calculated from diagnosis until last evaluation. BMD was analyzed by the first and last energy X-ray absorptiometry (DXA) scans performed. RESULTS Twenty simple virilizing (SV) and 14 salt wasting (WS) whose mean age was 26 ± 6 years, mean CA, dexamethasone, and fludrocortisone cumulative doses were 63,813 ± 32,767, 812 ± 558, and 319 ± 325 mg/m2, respectively. Based on the last DXA, low BMD was observed in 11% of patients, total hip Z-score was lower in the SW than SV form (p = 0.04). Cumulative CA dose had an inverse correlation with femoral neck Z-score (p < 0.01). Total cumulative GC and MC doses had an inverse correlation with total hip Z-score (p < 0.01). In the analysis of sequential BMD during dexamethasone therapy, no association was observed among cumulative GC/MC doses, clinical forms, sex, and lumbar Z-score delta. CONCLUSIONS Even though a low CA regimen during growth periods in addition to MC replacement appears to have an influence on BMD at femoral sites, interestingly a low dexamethasone one does not seem to be deleterious for bone health in adulthood.
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[Efficacy and safety of botulinum toxin in the treatment of sialorrhea in children with neurological disorders]. An Pediatr (Barc) 2012; 77:289-91. [PMID: 22652186 DOI: 10.1016/j.anpedi.2012.03.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2012] [Revised: 03/29/2012] [Accepted: 03/31/2012] [Indexed: 10/28/2022] Open
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[Relationship between PAO2/FIO2 and SATO2/FIO2 with mortality and duration of admission in critically ill children]. An Pediatr (Barc) 2011; 76:16-22. [PMID: 21871849 DOI: 10.1016/j.anpedi.2011.06.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Revised: 05/02/2011] [Accepted: 06/14/2011] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES The aim of this study is to analyse the relationships and the association between PaO(2)/FiO(2) and SatO(2)/FiO(2with) the duration of admission in Paediatric Intensive Care Units (PICU) and mortality, and to study the relationships between both ratios. MATERIAL AND METHODS A retrospective study was conducted on PICU patients in whom a gas analysis was performed in the first twenty-four hours of admission. Demographic, clinical and ventilation variables were collected, and the relationship between PaO(2)/FiO(2) and SatO(2)/FiO(2) with days of admission and mortality was determined. Finally, the best cut-off points of SatO(2)/FiO(2) were determined for PaO(2)/FiO(2) values greater and less than 200. RESULTS Of 512 patients admitted during one year, a gas analysis was performed on 358, 65% of those in arterial blood. The median duration of hospitalization was two days and there were 11 patient deaths. There was a low negative correlation between the values of PaO(2)/FiO(2) and SatO(2/)FiO(2) on admission to PICU and with duration of admission, and an inverse association with mortality (P<.01). This association was stronger for the PaO(2)/FiO(2) ratio in patients with heart disease, those undergoing invasive mechanical ventilation, and for arterial blood samples. PaO(2)/FiO(2) and SatO(2)/FiO(2) ratios were significantly correlated with each other. A cut-off of 200 for SatO(2)/FiO(2) had a sensitivity of 97.5% for classifying patients with PaO(2)/FiO(2) values lower or higher than 200. CONCLUSIONS PaO(2)/FiO(2) and SatO(2)/FiO(2) index are markers of severity in critically ill patients. In patients who do not have an arterial line, SatO(2)/FiO(2) index can be used for assessment of oxygenation as an indicator of severity in children in critical condition.
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Dyschromatosis universalis hereditaria: evidence for autosomal recessive inheritance and identification of a new locus on chromosome 12q21-q23. Clin Genet 2008; 73:566-72. [PMID: 18462451 DOI: 10.1111/j.1399-0004.2008.01000.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Dyschromatosis universalis hereditaria (DUH) and dyschromatosis symmetrica hereditaria (DSH) are pigmentary dermatoses most commonly seen in Japan. Both disorders usually show autosomal dominant inheritance, although in some cases autosomal recessive inheritance was reported. DSH was mapped to chromosome 1q21.3, and mutations in the gene ADAR (DSRAD) were identified in Japanese, Chinese and Taiwanese families with autosomal dominant DSH. A second locus for dyschromatosis was mapped on chromosome 6q24.2-q25.2 in two Chinese families initially reported to be affected with DSH, but later suggested to have autosomal dominant DUH. The aim of this study was to investigate whether one of these two loci is involved in the development of DUH in a consanguineous Bedouin family from Saudi Arabia with four affected and three unaffected sibs, clearly pointing to autosomal recessive inheritance. After excluding mutations in ADAR and linkage to the candidate regions on chromosomes 1 and 6, we performed an single nucleotide polymorphism-based genome-wide scan for linkage with other loci. Under the assumption of autosomal recessive inheritance, we have identified a new locus for dyschromatosis on chromosome 12q21-q23 in this Arab family with a maximum logarithm of the odds (LOD) score of 3.4, spanning a distance of 18.9 cM. Our study revealed the first locus for autosomal recessive DUH and supports recent evidence that DSH and DUH are genetically distinct disorders.
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Etiologic agent of an epidemic of cutaneous leishmaniasis in Tolima, Colombia. Am J Trop Med Hyg 2008; 78:276-282. [PMID: 18256429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
American cutaneous leishmaniasis (ACL) has been characterized as a zoonotic disease. However, peridomestic and domestic transmission have been recorded in at least nine countries in Central and South America. The present study was undertaken to identify the etiologic agent of a peridomestic epidemic of ACL in the Department of Tolima, Colombia. Leishmania isolates were obtained during the diagnosis of 56 patients with ACL who consulted the local leishmaniasis control program in three municipalities in Tolima. Species were identified using monoclonal antibodies and isoenzyme electrophoresis. A total of 53 (94.6%) of 56 isolates were identified as Leishmania (Viannia) guyanensis. Three isolates (5.4%) were identified as L. (V.) panamensis. Leishmania (V.) guyanensis is the probable etiologic agent of the largest epidemic of cutaneous leishmaniasis recorded in Colombia. This species has not previously been reported outside the Amazon and southeastern regions of Colombia, and has not been described in the peridomestic setting or linked with an epidemic.
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Prevalence and characterization of extended-spectrum beta-lactamases in Klebsiella pneumoniae and Escherichia coli isolates from Colombian hospitals. Diagn Microbiol Infect Dis 2004; 49:217-22. [PMID: 15246513 DOI: 10.1016/j.diagmicrobio.2004.03.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2003] [Accepted: 03/03/2004] [Indexed: 11/16/2022]
Abstract
Gram-negative pathogens harboring extended-spectrum beta-lactamases (ESBL) are widely prevalent in Latin America, but little is known about their prevalence in Colombia. A network of 8 tertiary care hospitals in Bogotá, Medellín, and Cali, Colombia, was formed in January 2002 to determine the prevalence of ESBL-producing Klebsiella pneumoniae and Escherichia coli. We characterized and established the molecular epidemiology of ESBLs from these hospitals. Data from 1074 E. coli and 394 K. pneumoniae isolates were obtained from hospital laboratories during 6 months. Isolates resistant to third-generation cephalosporins or aztreonam were sent to a central laboratory. The prevalence of strains with this phenotype was 32.6% in K. pneumoniae and 11.8% in E. coli from the intensive care units, with slightly lower percentages from wards. Although TEM and SHV enzymes were present, the dominant class was CTX-M. Molecular typing of chromosomal DNA showed that most strains were not clonal.
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Determination of dithiocarbamate fungicide residues in food by a spectrophotometric method using a vertical disulfide reaction system. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2001; 49:4521-4525. [PMID: 11599982 DOI: 10.1021/jf010124a] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Dithiocarbamates are a class of fungicides extensively used in many crops worldwide. The current residue definition of dithiocarbamates in food for compliance with maximum residue limits, at national and international levels, is total residues arising from the use of any or each dithiocarbamate fungicide, determined as CS(2). The analytical method most frequently used to analyze dithiocarbamate residues in food for monitoring purposes was proposed more than 30 years ago. In this method, total dithiocarbamates are decomposed to CS(2), which is purified and reacted with a cupric reagent. The yellow complex formed is quantified by spectrophotometry. In this paper, a new reaction system for the purification and complexation of CS(2) is proposed. The new system is less fragile than the traditional design, is easier to assemble, and allows for a higher sample throughput, in addition to being of low cost. Recovery of added mancozeb, thiram, or ziram (0.15-8.0 mg/kg) in rice, beans, apple, banana, orange, papaya, tomato, cucumber, and potato ranged from 82 to 120%, with relative standard deviations from 0 to 10% (n = 3 or 5). Analysis of apple, tomato, and papaya samples with field-incurred dithiocarbamate residues showed comparable results using both the traditional and the new reaction systems.
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[The sentinel lymph node in breast carcinoma: present situation. Criteria for action in the Hospital of Navarra]. An Sist Sanit Navar 2001; 24:363-6. [PMID: 12876582 DOI: 10.23938/assn.0404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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A set of 400 pictures standardised for Portuguese: norms for name agreement, familiarity and visual complexity for children and adults. ARQUIVOS DE NEURO-PSIQUIATRIA 2001; 59:330-7. [PMID: 11460174 DOI: 10.1590/s0004-282x2001000300004] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The present article provides normative measures for 400 pictured objects (Cycowicz et al., 1997) viewed by Portuguese speaking Brazilian University students and 5-7 year-old children. Name agreement, familiarity and visual complexity ratings were obtained. These variables have been shown to be important for the selection of adequate stimuli for cognitive studies. Children's name agreement was lower than that of adults. The children also failed to provide adequate modal names for 103 concepts, rated drawings as less familiar and less complex, and chose shorter names for pictures. The differences in ratings between adults and children were higher than those observed in the literature employing smaller picture sets. The pattern of correlations among measures observed in the present study was consistent with previous reports, supporting the usefulness of the 400 picture set as a tool for cognitive research in different cultures and ages.
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Abstract
OBJECTIVE To assess the sensitivity of the vaginal smear cytologic examination in detecting vaginal intraepithelial neoplasia (VAIN) and to evaluate the cytologic findings of cases of VAIN. STUDY DESIGN Cases with a histologic diagnosis of VAIN were identified from the Barnes-Jewish Hospital South and North Campus over a period of five and nine years, respectively. Only posthysterectomy patients with a tissue biopsy diagnosis of VAIN and with a vaginal smear obtained within three months of the biopsy were included in the study. Pertinent clinical information was obtained by reviewing the medical records. Two pathologists reviewed the pathologic samples. RESULTS Thirty-five vaginal smears from 31 posthysterectomy patients were included in the study. The mean age was 57 years (range, 29-84). The cytologic diagnoses of smears from patients with VAIN included: high grade squamous intraepithelial lesion (19 cases), low grade squamous intraepithelial lesion (10 cases), atypical squamous cells of uncertain significance (5 cases) and negative for malignancy (1 case). CONCLUSION The sensitivity of the vaginal smear cytologic examination in detecting VAIN is 83%. Obscuring inflammation contributed to false negative diagnoses in two cases.
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Cognitive profile of patients with relapsing remitting multiple sclerosis. ARQUIVOS DE NEURO-PSIQUIATRIA 1999; 57:775-83. [PMID: 10751911 DOI: 10.1590/s0004-282x1999000500007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multiple sclerosis (MS) is a common disease in Western countries of temperate/cold climate, but in tropical countries an increasing number of cases have been diagnosticated. Moved by the lack of information about cognitive dysfunction of Brazilian MS patients, the present study attempted to describe features of neuropsychological alterations in patients with relapsing remitting MS living in the city of São Paulo. They were compared to healthy volunteers, matched for age and education. In the absence of global intellectual deterioration, the patients had a deficit: a) in learning and verbal long-term memory tasks and in visual long-term memory of complex figure; b) in timed tasks, accounted for by a slowness of mental processes; c) in tasks with a motor component. Tendency to depression was observed; anxiety levels were normal.
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Characterization of the isoenzyme profile of beta-N-acetylhexosaminidase in the urine of newborns. Clin Chem Lab Med 1999; 37:765-9. [PMID: 10510735 DOI: 10.1515/cclm.1999.117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The urinary isoenzymes of beta-N-acetylhexosaminidase (Hex) in newborn infants were characterised by chromatography, electrophoresis, thermodynamic analysis and through substrate specificity. No qualitative difference was found for the major Hex A and Hex B isoenzymes between full-term or premature newborns and adults, although in the latter group the relative proportion of Hex B is much lower (18.5 +/- 2.7% vs. 36.3 +/- 1.0%). An additional minor enzyme form was found in some premature newborns, which eluted from the DEAE-cellulose column at a higher concentration of NaCl than Hex A and, like this isoenzyme, is able to hydrolyse 4-methylumbellipheryl-2-acetamido-2-deoxy-beta-D-glucopyranoside-6 -sulphate, which would suggest that it has alpha subunits in its molecule. These results do not confirm the hypothesis of other authors about the existence of a unique fetal Hex isoenzyme in neonatal urine which eluted before the application of the NaCl gradient, similarly to the Hex B.
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Abstract
OBJECTIVE To determine the positive predictive value of ocular cytologic specimens and to describe the cytopathologic findings encountered in ocular samples from patients with intraocular neoplasms. STUDY DESIGN Intraocular fluids and ocular fine needle aspirates (FNAs) cytologically diagnosed as either suspicious or positive for malignancy during a 15-year period were reviewed, and follow-up was obtained. RESULTS Seventeen patients with intraocular samples diagnosed as suspicious or positive for malignancy (9 vitreous, 6 anterior chamber, 3 FNAs) were identified. The mean patient age was 58 years (range, 3-91). Cytologic diagnoses included: lymphoma (5), suspicious for lymphoma (2), melanoma (6), suspicious for melanoma (2), carcinoma (2) and retinoblastoma (1). Clinical and/or surgical follow-up was available in 12 cases and was consistent with the presence of malignancy in all but one case, which proved to be fungal endophthalmitis. One of two patients with a cytologic diagnosis of carcinoma had melanoma on follow-up. Cytologic samples suspicious or positive for lymphoma showed single, large cells with scant cytoplasm and prominent nucleoli. Cytologic samples suspicious or positive for the epithelioid type of melanoma showed loosely cohesive groups or single cells, marked cellular pleomorphism, large nucleoli, scant to moderately abundant cytoplasm and variable amounts of melanin. Cytologic samples from spindle cell melanomas showed spindle cells without nuclear or cellular pleomorphism, without hyperchromasia, and with inconspicuous nucleoli and occasional nuclear grooves. Loose aggregates of small cells with hyperchromatic nuclei and scant cytoplasm characterized the retinoblastoma samples. CONCLUSION The positive predictive value of intraocular fluid cytology was 92%. Reactive lymphoid processes may be difficult to differentiate from lymphoma and epithelioid melanoma from carcinoma in intraocular cytologic specimens.
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Abstract
A new polymorphism, in intron 7 of glucocerebrosidase gene, has been identified in Gaucher Disease patients. It seems to appear only in Pv1.1- alleles bearing the N370S mutation. This new sub-haplotype was only identified in Portuguese patients, of origins spanning all of the Portuguese continental territory. This finding indicates that, in the Portuguese, mutation N370S has existed in the context of two slightly different haplotypes and thus must be relatively ancient.
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Endometrial squamous metaplasia. An unusual response to progestin therapy of hyperplasia. Arch Pathol Lab Med 1995; 119:458-60. [PMID: 7748076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To report the finding of squamous metaplasia within endometrial glands occurring as a result of progestin therapy of hyperplasia. DESIGN Case series. Retrospective analysis of two cases from 9235 accessioned endometrial biopsies. SETTING Hospital-based pathology laboratory processing inpatient and outpatient specimens. PATIENTS Two women, ages 49 and 34 years, with endometrial hyperplasia without squamous metaplasia who were treated with progestin. RESULTS Extensive squamous metaplasia was found in endometrial glands following progestin therapy. The post-therapy biopsies also showed progestin-related alterations but no evidence of active hyperplasia. CONCLUSION Squamous metaplasia in these cases appears to be a consequence of progestin therapy. The absence of hyperplasia in the progestin-treated endometrium suggests that the squamous metaplasia does not represent persistence or progression of the original hyperplastic lesion.
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Tay-Sachs disease: intron 7 splice junction mutation in two Portuguese patients. BIOCHIMICA ET BIOPHYSICA ACTA 1995; 1270:44-51. [PMID: 7827134 DOI: 10.1016/0925-4439(94)00070-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A single nucleotide transversion (G-->C) in the 5' donor site of intron 7 of the beta-hexosaminidase alpha-chain gene was identified in two Portuguese patients with infantile Tay-Sachs disease. One patient was found to be homozygous and the other a compound heterozygote with the four-base insertion in exon 11 on the other allele. In fibroblasts from the homozygous patient the beta-hexosaminidase alpha mRNA was observed as a nearly undetectable fast migrating band. Through cDNA-PCR amplification and hybridization with full length alpha cDNA several fragments of smaller size than the normal transcript were detected, most of them lacking exon 7. We propose that this point mutation in the 5' donor site of intron 7 of the beta-hexosaminidase alpha-chain gene is responsible for an inefficient and abnormal processing of the mutant transcript, resulting in functional abnormality.
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[Progressive hereditary dystonia with diurnal fluctuations: report of 2 cases]. Rev Med Chil 1993; 121:557-9. [PMID: 7903816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We report two patients with diurnally fluctuating hereditary progressive dystonia, that presented with dystonic movements and parkinsonian symptoms with marked diurnal fluctuations. There was a significant and maintained improvement of symptoms with small doses of L-Dopa. The pathogenesis of this disease could be a functional alteration of basal ganglia in the dopaminergic striatonigral region. The diurnal fluctuation of symptoms would be related to the circadian variation of tyrosine hydroxylase function.
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[Asymptomatic carotid bruit in Chile]. Rev Med Chil 1987; 115:1144-7. [PMID: 3504571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Four cases of late onset metachromatic leucodystrophy in a family: clinical, biochemical and neuropathological studies. J Neurol Neurosurg Psychiatry 1986; 49:1417-22. [PMID: 3806119 PMCID: PMC1029128 DOI: 10.1136/jnnp.49.12.1417] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Four cases of familial metachromatic leucodystrophy are described: the age of onset ranged from 15 to 21 years. Mental deterioration was the earliest clinical sign to be noted and all progressed to severe dementia. The arylsulphatase activity in peripheral leucocytes of the patients was very low, 5 to 15 nmol/h/mg protein, moderately reduced in the heterozygote, 40 nmol/h/mg protein, compared with control values of 60-160 nmol/h/mg protein. Sural nerve biopsies in two cases showed perivascular macrophages filled with metachromatic material and electron microscopy showed typical inclusions in Schwann cell cytoplasm. Necropsy in one of the cases revealed severe demyelination mainly in the cerebral hemispheres with metachromatic material in macrophages and neurons.
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[Clinical and electroencephalographic study of febrile crisis in children]. REVISTA CHILENA DE PEDIATRIA 1984; 55:232-5. [PMID: 6522680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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[Gastric carcinoma: incidence and distribution of lymph node metastases in gastrectomized patients]. Rev Med Chil 1981; 109:841-7. [PMID: 7342260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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[Non-carcinomatous tumoral and pseudotumoral lesions of the ampulla of Vater (author's transl)]. Rev Med Chil 1980; 108:430-4. [PMID: 7433798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Nephrotic-uremic syndrome in sickle cell disease. BOLETIN DE LA ASOCIACION MEDICA DE PUERTO RICO 1968; 60:84-9. [PMID: 5262422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Grand rounds: Veterans Hospital. BOLETIN DE LA ASOCIACION MEDICA DE PUERTO RICO 1966; 58:576-81. [PMID: 5231580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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