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1.
Georgian Med News ; (330): 99-105, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-36427851

RESUMEN

Coronavirus disease 2019 (Covid-19) active cases continue to demand the development of safe and effective treatments. This is the first clinical trial to evaluate the safety and efficacy of oral thymic peptides. ; We conducted a nonrandomized phase 2 trial with a historic control group to evaluate the safety and efficacy of a daily 250-mg oral dose of thymic peptides in the treatment of hospitalized Covid-19 patients. Comparisons based on standard care from registry data were performed after propensity score matching. The primary outcomes were survival, time to recovery, and number of participants with treatment-related adverse events or side effects by day 20. ; A total of 44 patients were analyzed in this study: 22 in the thymic peptide group and 22 in the standard care group. There were no deaths in the intervention group compared to 24% mortality in standard care by day 20 (log-rank P=0.02). Kaplan-Meier analysis showed a significantly shorter time to recovery by day 20 in the thymic peptide group than in the standard care group (median, 6 days vs. 12 days; hazard ratio for recovery, 2.75 [95% confidence interval, 1.34 to 5.62]; log-rank P=0.002). No side effects or adverse events were reported. ; In patients hospitalized with Covid-19, the use of thymic peptides resulted in no side effects, adverse events, or deaths by day 20. Compared with the registry data, a significantly shorter time to recovery and mortality reduction were measured.


Asunto(s)
Tratamiento Farmacológico de COVID-19 , Péptidos , Humanos , Honduras , Estimación de Kaplan-Meier , Péptidos/efectos adversos , Modelos de Riesgos Proporcionales
2.
Mycologia ; 109(1): 92-99, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28402793

RESUMEN

Lichenomphalia is a lichenized agaric genus characterized by its omphalinoid basidiomes. Lichenomphalia species are associated with unicellular green algae in the genus Coccomyxa and are mainly distributed in polar and alpine habitats. The aim of this work is to describe L. altoandina, a new species from northern Chile that grows among cushion plants over 3000 m above sea level in the Andes Mountains. The species is remarkable for living in highly saline environments, in some cases virtually on salt crusts. Lichenomphalia altoandina differs from other known species and particularly from L. aurantiaca, the most morphologically similar species, in its smooth and broader stipe and its slightly larger spores. Lichenomphalia altoandina is also morphologicaly and ecologically more similar to the core Lichenomphalia clade. Our phylogenetic study based on nuclear rDNA ITS and partial 28S sequences shows that L. altoandina belongs to the Protolichenomphalia clade and is sister to an unknown lineage, L. aff. umbellifera, from New Zealand.


Asunto(s)
Agaricales/clasificación , Agaricales/aislamiento & purificación , Agaricales/genética , Agaricales/crecimiento & desarrollo , Chile , Análisis por Conglomerados , ADN de Hongos/química , ADN de Hongos/genética , ADN Ribosómico/química , ADN Ribosómico/genética , ADN Espaciador Ribosómico/química , ADN Espaciador Ribosómico/genética , Microscopía , Filogenia , ARN Ribosómico 28S/genética , Salinidad , Análisis de Secuencia de ADN , Suelo/química , Microbiología del Suelo , Esporas Fúngicas/citología
3.
Mycologia ; 106(6): 1159-67, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25152002

RESUMEN

The discovery of Chlorovibrissea chilensis sp. nov.expands the distribution of Chlorovibrissea from Australasia to include South America. C. chilensis, phylogenetically distinct from other species in the genus, is also characterized morphologically by its ascoma with emerald green stalk and pale orange-brown head, budding paraphyses and 5-6-septate ascospores. Based on the phylogenetic analysis, the Australasian species Vibrisseaalbofusca is recombined in Chlorovibrissea, despite the fact it lacks the distinctive green pigmentation of other species in this genus. In addition, the genus Vibrissea in a strict phylogenetic sense is confirmed from the southern hemisphere for the first time; Vibrissea truncorum is reported from Chile and V. flavovirens from New Zealand.


Asunto(s)
Ascomicetos/clasificación , Ascomicetos/citología , Ascomicetos/genética , Ascomicetos/aislamiento & purificación , Australia , Secuencia de Bases , Chile , ADN de Hongos/química , ADN de Hongos/genética , ADN Espaciador Ribosómico/química , ADN Espaciador Ribosómico/genética , Geografía , Datos de Secuencia Molecular , Nueva Zelanda , Filogenia , Análisis de Secuencia de ADN , América del Sur , Esporas Fúngicas
4.
Braz J Biol ; 79(1): 139-143, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-29538485

RESUMEN

The southern distribution of the Broad-snouted Caiman (Caiman latirostris Daudin 1802) in Argentina occurs in Santa Fe Province, where its population has been under management by "Proyecto Yacaré" since 1990. From 1997 to 2016, we captured 77 nesting female Broad-snouted Caimans in Santa Fe Province. Our results suggest that previously defined size classes for Broad-snouted Caiman do not adequately describe the reproductively mature female segment of the population. Here we propose to change size ranges for general size classes for Broad-snouted Caiman. In addition, we have observed that reintroduced reproductive females by Proyecto Yacaré represent about 32% of captured females. These results indicate that reintroduced females by the management program are surviving and reproducing in the wild at least up to 20 years.


Asunto(s)
Caimanes y Cocodrilos/fisiología , Tamaño Corporal , Animales , Argentina , Femenino , Reproducción
5.
Ophthalmologica ; 222(6): 397-9, 2008.
Artículo en Inglés | MEDLINE | ID: mdl-18781090

RESUMEN

BACKGROUND: This study assessed axial length measurements taken with MRI compared to A-scan ultrasonography for use in silicone-filled eyes with cataracts. METHODS: This study was a double-blinded prospective comparison study of axial length measurements made by MRI and A-scan ultrasonography. MRI scans of 20 patients undergoing MRI were reviewed to determine axial length. Standard A-scan measurements of axial length were also obtained. Axial length measurements by MRI were compared to A-scan ultrasonography measurements. RESULTS: In 36 eyes, an MRI scan was obtained in the correct plane to measure the axial length. The axial length measured by MRI was on average 0.18 +/- 0.29 mm longer (range -0.41 to +0.7 mm) than the axial length measured by A-scan, for a refractive error average of +0.28 +/- 0.58 D (SD), and a range of -1.06 to +1.52 D. CONCLUSIONS: Axial length measurements with MRI match reliably with axial lengths measured by A-scan ultrasonography.


Asunto(s)
Catarata/patología , Ojo/patología , Imagen por Resonancia Magnética/métodos , Método Doble Ciego , Humanos , Tamaño de los Órganos , Reproducibilidad de los Resultados
6.
Rev. chil. neuro-psiquiatr ; 60(3): 299-307, sept. 2022.
Artículo en Español | LILACS | ID: biblio-1407832

RESUMEN

RESUMEN: Es sabido que, tanto psicólogos como psiquiatras infantiles, poseen escasa capacitación y formación en el área de lingüística, lo que sin duda tiene gran relevancia en la salud mental infantil. Consecuentemente, una mayor especialización en los aspectos evolutivos del lenguaje infantil, podría favorecer la eficacia en la psicoterapia con niñas y niños, potenciando las técnicas clásicamente utilizadas en setting, como lo son el juego y las actividades plásticas. Así, con mayor conocimiento en psicolingüística y pragmática, profesionales de la salud mental incrementarían su batería de herramientas prácticas para una efectiva comunicación momento a momento en el espacio terapéutico con el/la paciente. Esto no sólo ampliaría el uso de la psicolingüística infantil más allá del diagnóstico de los trastornos del lenguaje, sino que también contribuiría a converger los conocimientos teórico-prácticos para potenciar el trabajo psicológico con infancia, mediante una comunicación más efectiva del adulto con el/la niña/o.


ABSTRACT It is known that both child psychologists and psychiatrists have little training in linguistics, which undoubtedly has great relevance in children's mental health. A greater specialization in the evolutionary aspects of children's language could improve the effectiveness in psychotherapy, enhancing the techniques classically used in setting, such as games and artistic activities. Thus, with greater knowledge in psycholinguistics and pragmatics, mental health professionals could increase their battery of practical tools for effective moment-by-moment communication with the patient. This would expand the use of child psycholinguistics not only for the diagnosis of language disorders, but also contribute to converge theoretical and practical knowledge achieving a more effective communication between the adult and the child.


Asunto(s)
Humanos , Niño , Psicolingüística , Psicoterapia/métodos , Lenguaje Infantil
7.
Rev Esp Quimioter ; 29(3): 146-50, 2016 Jun.
Artículo en Español | MEDLINE | ID: mdl-27092771

RESUMEN

OBJECTIVE: Knowledge of urophatogens and antibiotic susceptibility should be used to assist with empirical urinary tract infection treatment. METHODS: We retrospectively analysed local bacterial pattern and antimicrobial susceptibility in positive urinary isolates from paediatric patients collected in the period 2009-2013. Results were compared with a previous study carried out in the same sanitary area between 1995 and 1999. RESULTS: We identified 2,762 urinary isolates. Escherichia coli was the most common uropathogen (58.9%), followed by Enterococcus sp. (11.6%) and Proteus mirabilis (10.9%). More than 95% of non extended-spectrum beta-lactamase (ESBL)-producing E. coli were susceptible to nitrofurantoin, fosfomycin, cefotaxime and aminoglycosides. However, 56%, 49%, and 22% of the E. coli isolates were resistant to ampicillin, oral first-generation cephalosporins, and trimethoprim-sulfamethoxazole, respectively. Ampicillin and amoxicillin-clavulanate were the most effective antibiotics to treat Enterococcus sp. and P. mirabilis, respectively. Not significant modifications were found compared to results published at the same area in the 90´s. CONCLUSIONS: E. coli was the mostly isolated uropathogen, with a high percentage of resistance to ampicillin, oral first-generation cephalosporins, and trimethoprim-sulfamethoxazole. These urinary isolates and antimicrobial susceptibility patterns were similar to those reported in other paediatric studies and did not show significant changes compared to local previously published results. Thus, it can be considered that the current recommendations about empiric antibiotic therapy in paediatric urinary tract infections remain applicable nowadays.


Asunto(s)
Antibacterianos/farmacología , Bacterias/efectos de los fármacos , Bacteriuria/microbiología , Infecciones Urinarias/microbiología , Adolescente , Antibacterianos/uso terapéutico , Niño , Preescolar , Farmacorresistencia Bacteriana , Enterococcus , Escherichia coli , Femenino , Humanos , Lactante , Masculino , Pruebas de Sensibilidad Microbiana , Proteus mirabilis , Estudios Retrospectivos , Infecciones Urinarias/tratamiento farmacológico , Infecciones Urinarias/orina
8.
Rev. méd. Maule ; 35(1): 72-74, oct. 2020.
Artículo en Español | LILACS | ID: biblio-1366711

RESUMEN

The healthcare ethics committee of the Regional Hospital of Talca, shares with the hospital community, ethical considerations in medical-clinical decisions, in the context of the COVID 19 pandemic. Focus attention on the person, with dignified treatment, with the center in quality and proportional to the individual condition, within the framework of protected teamwork, and that everyone is responsible for mutual care. The considerations of admission to critical units of complicated patients, with principles of caring over healing, without abandoning those who require assistance. Resources are scarce and must be protected, people must not be discriminated against, age is a precedent that must be considered, given the chances of survival, without going beyond the limitations to the therapeutic effort, which must be shared with the treating medical team and of the hospital ethics committee if required. A dignified death is an element to be considered with respect for the person, their families and the community.


Asunto(s)
Pandemias , COVID-19 , Áreas de Influencia de Salud , Comités de Ética Clínica , Hospitales/normas
9.
Eur J Gastroenterol Hepatol ; 13(5): 477-81, 2001 May.
Artículo en Inglés | MEDLINE | ID: mdl-11396524

RESUMEN

OBJECTIVES: To estimate the prevalence of hepatitis C in a population of northern Spain and describe (i) the risk factors associated with infection and (ii) the distribution of genotypes. DESIGN: Randomized cross-sectional study. METHODS: A random sample of 1,170 people participated in the study. Sociodemographic data were obtained. Antibodies against hepatitis C virus (anti-HCV) and hepatitis C virus (HCV) genotypes were determined. RESULTS: Nineteen of 1,170 (1.6%) subjects were anti-HCV positive (95% CI 1.0-2.6%). In 12 cases (63%), viraemia was present, and the predominant genotype was 1 b (80%). Anti-HCV positive subjects were older than anti-HCV negative subjects (55.8 +/- 15.3 v. 44.8 +/- 20.9; P = 0.02). Two peaks of maximum frequency were found (in the fourth decade and in those over 60 years). Parenteral drug addiction predominates among those of the fourth decade, while transfusion and surgery predominate in people over 60 years. Three (16%) subjects knew they were carriers of HCV. Only three variables remained significant in the multivariate model (illegal drug use, P< 0.0001; previous hepatitis, P< 0.0001; and age, P< 0.02). CONCLUSIONS: Our study emphasizes the need to develop health policies that can cope with the foreseeable increases in the problems associated with HCV infection in the near future.


Asunto(s)
Hepatitis C/epidemiología , Adolescente , Adulto , Distribución por Edad , Anciano , Niño , Preescolar , Femenino , Hepacivirus/genética , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Prevalencia , Factores de Riesgo , España/epidemiología
10.
Braz. j. biol ; 79(1): 139-143, Jan.-Mar 2019. tab, graf
Artículo en Inglés | LILACS | ID: biblio-984004

RESUMEN

Abstract The southern distribution of the Broad-snouted Caiman (Caiman latirostris Daudin 1802) in Argentina occurs in Santa Fe Province, where its population has been under management by "Proyecto Yacaré" since 1990. From 1997 to 2016, we captured 77 nesting female Broad-snouted Caimans in Santa Fe Province. Our results suggest that previously defined size classes for Broad-snouted Caiman do not adequately describe the reproductively mature female segment of the population. Here we propose to change size ranges for general size classes for Broad-snouted Caiman. In addition, we have observed that reintroduced reproductive females by Proyecto Yacaré represent about 32% of captured females. These results indicate that reintroduced females by the management program are surviving and reproducing in the wild at least up to 20 years.


Resumo Na Argentina, a distribuição mais austral do jacaré-de-papo-amarelo (Caiman latirostris Daudin 1802) ocorre na Provincia de Santa Fe, sendo que suas populações são manejadas pelo "Proyecto Yacaré" desde 1990. Entre os anos de 1997 e 2016, nós capturamos 77 fêmeas nidificantes do jacaré-de-papo-amarelo em Santa Fe. Nossos resultados sugerem que as classes de tamanho definidas para o jacaré-de-papo-amarelo não representam a realidade dos animais capturados no presente estudo. Portanto, propõe-se uma alteração nas classes de tamanho para o jacaré-de-papo-amarelo. Nós também observamos que as fêmeas reintroduzidas pelo "Proyecto Yacaré" representaram 32% das fêmeas capturadas. Estes resultados indicam que fêmeas reintroduzidas pelo programa de manejo estão sobrevivendo e reproduzindo na natureza por, pelo menos, 20 anos.


Asunto(s)
Animales , Femenino , Tamaño Corporal , Caimanes y Cocodrilos/fisiología , Argentina , Reproducción
11.
BMJ Open ; 3(6)2013 Jun 20.
Artículo en Inglés | MEDLINE | ID: mdl-23794585

RESUMEN

OBJECTIVES: To determine the prevalence of anorectal Chlamydia trachomatis serovars in a group of men who have sex with men (MSM) with high risk sexual behaviour, attendees at a sexually transmitted infection (STI) unit from a region in Northwest Spain. DESIGN: Retrospective and descriptive study of all swabs obtained from all MSM attendees at an STI unit, from 2007 to 2011. Retrospective ethical approval was granted by the Ethical Regional Committee of Clinical Investigation of the Principality of Asturias. SETTING: The STI clinic in Oviedo, Spain, offers screening and free-of-charge treatment to about 3646 patients per year. PARTICIPANTS: 303 symptomatic and asymptomatic consecutive and unselected MSM patients (mean age 36.7 and range 21-55 years) were evaluated for anorectal chlamydial infection. MAIN OUTCOME MEASURES: C trachomatis DNA extraction and detection in all rectal and in 36 urethral swabs. Characterisation of C trachomatis genotypes through sequencing of ompA gene amplicons and further phylogenetic tree analysis. RESULTS: We found 40 (13. 2%) positive rectal samples. The distribution of genotypes was E (37. 5%) followed by G (25%), D (12. 5%), J (10%) and L2b (5%).25 (62.5%, 95% CI 46.2 to 78.7) of the chlamydia-infected MSM showed clinical manifestations while 15 (37.5%, 95% CI 21.25 to 53.75) reported no symptoms. Concurrent infection with other STIs was documented in 27 (67.5%, 95% CI 51.7 to 83.2) patients. The most frequently reported clinical symptom was anal ulcer (7 cases, 17.5%; 95% CI 4.47 to 30.52). E genotype was mostly detected in asymptomatic patients. There were non-E genotypes detected in 21 (84%, 95% CI 63.9 to 95.5) of 25 symptomatic patients (p<0.001). CONCLUSIONS: The first two confirmed cases of lymphogranuloma venereum (LGV) in MSM in Asturias are reported, probably indicating the increase of this infection. The Spanish C trachomatis laboratory-based surveillance system may underlie an underestimated number of chlamydial infections. Whenever mild and atypical symptoms exist, laboratory evaluation would contribute to the early implementation of appropriate therapy and prevent LGV dissemination.

13.
Artículo en Inglés | LILACS-Express | LILACS, VETINDEX | ID: biblio-1467153

RESUMEN

Abstract The southern distribution of the Broad-snouted Caiman (Caiman latirostris Daudin 1802) in Argentina occurs in Santa Fe Province, where its population has been under management by Proyecto Yacaré since 1990. From 1997 to 2016, we captured 77 nesting female Broad-snouted Caimans in Santa Fe Province. Our results suggest that previously defined size classes for Broad-snouted Caiman do not adequately describe the reproductively mature female segment of the population. Here we propose to change size ranges for general size classes for Broad-snouted Caiman. In addition, we have observed that reintroduced reproductive females by Proyecto Yacaré represent about 32% of captured females. These results indicate that reintroduced females by the management program are surviving and reproducing in the wild at least up to 20 years.


Resumo Na Argentina, a distribuição mais austral do jacaré-de-papo-amarelo (Caiman latirostris Daudin 1802) ocorre na Provincia de Santa Fe, sendo que suas populações são manejadas pelo Proyecto Yacaré desde 1990. Entre os anos de 1997 e 2016, nós capturamos 77 fêmeas nidificantes do jacaré-de-papo-amarelo em Santa Fe. Nossos resultados sugerem que as classes de tamanho definidas para o jacaré-de-papo-amarelo não representam a realidade dos animais capturados no presente estudo. Portanto, propõe-se uma alteração nas classes de tamanho para o jacaré-de-papo-amarelo. Nós também observamos que as fêmeas reintroduzidas pelo Proyecto Yacaré representaram 32% das fêmeas capturadas. Estes resultados indicam que fêmeas reintroduzidas pelo programa de manejo estão sobrevivendo e reproduzindo na natureza por, pelo menos, 20 anos.

15.
J Viral Hepat ; 13(1): 28-33, 2006 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-16364079

RESUMEN

Few studies have analysed the evolution of HCV markers in chronic hepatitis C (CHC)-treated patients. We have evaluated the presence or absence of serum and liver HCV-RNA, the core antigen (HCV-cAg) and the loss of specific antibodies (anti-HCV), in long-term sustained responders (SR). One hundred and seventy-six patients (132 SR and 44 nonresponders (NR) were included in the study. HCV-RNA was determined in serum and liver by a commercial PCR-kit. HCV-Ag was determined by ELISA and specific antibodies against HCV by means of a commercial line immunoblot assay (LIA) technique. Serum HCVcAg was found positive in three (4.2%) SR and in one (4%) NR (NS). Four SR (3.6%) and 44 NR (100%) were also HCV-RNA (+) in liver tissue. Two patients were HCV-cAg (+). A good correlation was found between the serum levels of HCV-cAg and HCV-RNA (r = 0.847, P < 0.001). Specific antibodies (anti-HCV) were determined by LIA in 45 patients. A decrease was found in the number of patients who presented reactivity to bands E2 and NS4 when we compared SR with a follow-up of more than 5 years with NR and SR with a follow-up <5 years (P < 0.01 and 0.005). A good correlation was found between the HCV-cAg and HCV-RNA serum levels in CHC-treated patients (P < 0.001). Few SR (3.6%) had HCV-RNA in the liver, and HCV-cAg (1.8%) in serum. In SR with more than 5 years of follow-up a clear tendency exists in the trend to clarify the bands E2 and NS4 of anti-HCV in serum.


Asunto(s)
Hepacivirus/inmunología , Anticuerpos contra la Hepatitis C/sangre , Antígenos de la Hepatitis C/sangre , Hepatitis C Crónica/inmunología , Adulto , Femenino , Estudios de Seguimiento , Genotipo , Hepacivirus/genética , Hepatitis C Crónica/sangre , Hepatitis C Crónica/virología , Humanos , Técnicas para Inmunoenzimas , Hígado/inmunología , Hígado/virología , Masculino , ARN Viral/química , ARN Viral/genética , Estudios Retrospectivos , Reacción en Cadena de la Polimerasa de Transcriptasa Inversa , Carga Viral
16.
J Chem Phys ; 123(21): 214102, 2005 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-16356034

RESUMEN

The Piris natural orbital functional (PNOF) based on a new approach for the two-electron cumulant has been used to predict adiabatic ionization potentials, equilibrium bond distances, and harmonic vibrational frequencies of 18 diatomic molecules. Vertical ionization potentials have been calculated for the same set of diatomic molecules and another set of 20 polyatomic molecules using energy-difference methods as well as the extended Koopman theorem. The PNOF properties compare favorably with the coupled-cluster-doubles results. The calculated PNOF values are in good agreement with the corresponding experimental data, considering the basis sets used (6-31G**).

17.
Scand J Infect Dis ; 16(3): 323-4, 1984.
Artículo en Inglés | MEDLINE | ID: mdl-6494813

RESUMEN

Persistence of pneumococcal capsular antigens (PCA) in sputum was studied by counterimmunoelectrophoresis (CIE) in 36 cases of pneumococcal pneumonia. Antigens were still detected 24 and 48 h after start of antimicrobial treatment, in 92% and 76% respectively of the patients with lobar or multilobar infiltrates. Persistence of PCA was associated with radiologic extension of lung infiltrate. CIE appears to be a valuable diagnostic tool for pneumococcal pneumonia, when treatment has been instituted before admission to the hospital.


Asunto(s)
Antibacterianos/uso terapéutico , Antígenos Bacterianos/análisis , Neumonía Neumocócica/inmunología , Esputo/inmunología , Estudios de Seguimiento , Humanos , Neumonía Neumocócica/tratamiento farmacológico , Streptococcus pneumoniae/inmunología
18.
Neurologia ; 7(1): 30-3, 1992 Jan.
Artículo en Español | MEDLINE | ID: mdl-1596401

RESUMEN

Q fever is a zoonosis found worldwide and is produced by Coxiella burnetii. It may be acute or chronic with neurological manifestations being infrequent. Several cases of acute encephalitis or meningoencephalitis have been described, generally with an evolution towards cure regardless of the use of selective antibiotic treatment. Recently the authors had the opportunity to study a 33 year old male presenting acute meningoencephalitis in which the clinical manifestations, CSF findings (increase in cellularity with lymphocytic predominance and excess proteins ) and neurophysiological findings (appearance of periodic bilateral complexes in the EEG) suggested the diagnosis of herpetic meningoencephalitis. Treatment with acyclovir was initiated. However, serologic studies demonstrated, a posteriori, that the germ responsible had been Coxiella burnetii. The patient evolved satisfactorily with no specific treatment and the EEG anomalies disappeared within a few days. The authors insist on the need to include Q Fever in the diagnostic differential of acute meningoencephalitis and emphasize the possibility that germs of a non viral nature may produce periodic EEG complexes in all that similar to those found in herpetic encephalitis.


Asunto(s)
Electroencefalografía , Meningoencefalitis/microbiología , Fiebre Q/diagnóstico , Enfermedad Aguda , Adulto , Anticuerpos Antibacterianos/sangre , Coxiella burnetii/inmunología , Diagnóstico Diferencial , Herpes Simple/diagnóstico , Humanos , Masculino , Meningitis Viral/diagnóstico , Meningoencefalitis/líquido cefalorraquídeo , Meningoencefalitis/diagnóstico , Meningoencefalitis/fisiopatología , Fiebre Q/líquido cefalorraquídeo , Fiebre Q/fisiopatología
19.
Infection ; 22(4): 252-7, 1994.
Artículo en Inglés | MEDLINE | ID: mdl-7528172

RESUMEN

Serially collected serum samples from 81 patients with acute non-A, non-B hepatitis were tested for the presence of antibodies to hepatitis C virus (anti-HCV) by a second-generation enzyme immunoassay (EIA) test. Anti-HCV was detected in 56 cases (69%) during the first month, in 61 cases (75%) at 3 months and in 63 cases (78%) at 6 months. In those 18 patients showing anti-HCV negative results in the three determinations, hepatitis C virus (HCV) RNA was tested using a nested polymerase chain reaction (PCR) in the first serum sample and was detected in only one case. Anti-HCV or HCV-RNA positive episodes were considered as acute hepatitis C, while those negative for both markers were classified as acute non-A, non-B, non-C hepatitis. On comparing acute hepatitis C with the non-A, non-B, non-C episodes, no significant differences were found in the presence of jaundice, mean maximum alanine-aminotransferase (ALT) levels and positivity of markers of past hepatitis B virus (HBV) infection. However, patients with hepatitis C were significantly younger than those with non-A, non-B, non-C hepatitis (p = 0.002). Male sex (78.1% vs. 35.3%; p = 0.001), history of parenteral exposure (90.6% vs. 11.8%; p = 0.0001), and progression to chronicity (73.4% vs. 5.9%; p = 0.0001) were significantly more frequent in the HCV-related group. Although other possibilities cannot be excluded, these results suggest that there might be a different infectious agent implicated in the etiology of acute non-A, non-B, non-C hepatitis.(ABSTRACT TRUNCATED AT 250 WORDS)


Asunto(s)
Hepatitis C/epidemiología , Hepatitis C/virología , Enfermedad Aguda , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Alanina Transaminasa/sangre , Enfermedad Crónica , Femenino , Estudios de Seguimiento , Hepacivirus/inmunología , Anticuerpos Antihepatitis/sangre , Hepatitis C/sangre , Anticuerpos contra la Hepatitis C , Humanos , Técnicas para Inmunoenzimas , Masculino , Persona de Mediana Edad , Reacción en Cadena de la Polimerasa , Factores de Riesgo , Estudios Seroepidemiológicos
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