RESUMEN
PURPOSE: To report treatment of a patient with acute retinal necrosis during pregnancy. METHODS: A 24-year-old woman in her twenty-third week of gestation was diagnosed with acute retinal necrosis. A combination of acyclovir and interferon therapy was started at 25 weeks. Pars plana vitrectomy was performed during the 26th week of gestation. RESULTS: The necrotizing retina became gliotic within 3 weeks of surgery. The patient's visual acuity improved to LE, 20/40. A healthy baby was delivered at 39 weeks of gestation. CONCLUSION: Combination therapy of acyclovir and interferon followed by surgery partially restored the patient's vision without affecting fetal development.
Asunto(s)
Antivirales/uso terapéutico , Infecciones Virales del Ojo/terapia , Herpes Simple/terapia , Complicaciones Infecciosas del Embarazo/terapia , Síndrome de Necrosis Retiniana Aguda/terapia , Vitrectomía , Aciclovir/uso terapéutico , Adulto , ADN Viral/análisis , Quimioterapia Combinada , Infecciones Virales del Ojo/fisiopatología , Infecciones Virales del Ojo/virología , Femenino , Edad Gestacional , Herpes Simple/fisiopatología , Herpes Simple/virología , Herpesvirus Humano 1/genética , Herpesvirus Humano 1/aislamiento & purificación , Humanos , Interferón beta/uso terapéutico , Reacción en Cadena de la Polimerasa , Embarazo , Complicaciones Infecciosas del Embarazo/fisiopatología , Complicaciones Infecciosas del Embarazo/virología , Resultado del Embarazo , Segundo Trimestre del Embarazo , Síndrome de Necrosis Retiniana Aguda/fisiopatología , Síndrome de Necrosis Retiniana Aguda/virología , Agudeza Visual/fisiología , Cuerpo Vítreo/virologíaRESUMEN
Three phosphines and their corresponding oxides bearing one 2-pyridone ring and two benzene rings were synthesized. Their single-crystal X-ray analyses exhibited three kinds of molecular aggregation: bimolecular aggregates, chiral one-dimensional structures, and achiral one-dimensional structures. In the bimolecular aggregate of (2-oxo-1, 2-dihydro-x-pyridyl)diphenylphosphines (x = 3: 2a and 6: 2c), cyclic dimers that are derived from two 2-pyridone rings are observed. In contrast, (2-oxo-1,2-dihydro-5-pyridyl)diphenylphosphine (2b) molecules form a chiral one-dimensional chain via intermolecular hydrogen bonding. In the case of phosphine oxides, their oxygen always acts as a hydrogen acceptor of the hydrogen bonding. Thus, (2-oxo-1,2-dihydro-x-pyridyl)diphenylphosphine oxides (x = 3: 3a and 5: 3b) form hydrogen bonds intermolecularly between the oxygen atom on the phosphoryl group and the hydrogen atom on nitrogen to construct a chiral or an achiral one-dimensional chain. Interestingly, (2-oxo-1,2-dihydro-6-pyridyl)diphenylphosphine oxide (3c) exists as a 2-hydroxypyridine form (enol form) in a crystalline state, and intermolecular hydrogen bonds between the phosphoryl oxygen and the hydroxy proton construct an achiral one-dimensional chain.
RESUMEN
In dogs, cats, and humans, gastrin-containing cells were found only in the antrum and in the duodenum by specific direct immunofluorescence. Distribution within the human duodenum, however, differed from that in cats and dogs. No gastrin-containing cells were seen in other sites of the body.
Asunto(s)
Sistema Digestivo/metabolismo , Gastrinas/metabolismo , Animales , Gatos , Colon/metabolismo , Perros , Duodeno/metabolismo , Esófago/metabolismo , Técnica del Anticuerpo Fluorescente , Mucosa Gástrica/metabolismo , Humanos , Íleon/metabolismo , Yeyuno/metabolismo , Páncreas/metabolismo , Recto/metabolismo , Glándulas Salivales/metabolismo , Especificidad de la EspecieRESUMEN
Cefsulodin (CFS), a new antipseudomonas cephalosporin, was clinically evaluated for treatment of the Pseudomonas aeruginosa infections in the surgical field to obtain the following results. 1. CFS was administered to total 11 cases of the surgical infections caused by P. aeruginosa, comprising of 5 cases with wound infections, 3 cases with infected burn and 1 case each with muscular abscess, decubitus and postoperative pneumonia in 0.5 approximately 1 g twice a day by intravenous bolus or drip infusion. Good clinical responses were obtained in 9 out of 11 cases (81.8%). 2. Bacteriological responses were observed in all cases. P. aeruginosa was eradicated in 9 cases and suppressed in 2 cases by CFS treatment. However, replacement of pathogens with the other organisms was observed in 6 out of 8 cases caused by P. aeruginosa only. 3. Neither objective and subjective side effects nor abnormalities of laboratory tests associated with CFS treatment were observed. 4. It can be, therefore, concluded that CFS is one of the useful drugs for treatment of the surgical infections caused by P. aeruginosa.
Asunto(s)
Cefalosporinas/uso terapéutico , Infecciones por Pseudomonas/tratamiento farmacológico , Infección de la Herida Quirúrgica/tratamiento farmacológico , Adulto , Anciano , Quemaduras/microbiología , Cefsulodina , Cefalosporinas/efectos adversos , Niño , Evaluación de Medicamentos , Femenino , Humanos , Masculino , Persona de Mediana EdadRESUMEN
Transrectal linear ultrasonography was performed on 59 male patients with dysuria, and voiding movement of the posterior urethra was observed with a videomonitor. Uroflowmetry was performed simultaneously, and the results were compared with those obtained in a previous study. On the image synchronized with maximum flow rate, the diameter of the bladder neck, and the center of the prostatic urethra were measured as parameters and the correlation with maximum flow rate, average flow rate, and residual urine rate, was examined. The forward movement of the ventral side of the posterior urethra was found to play a more important role in the opening of the posterior urethra, than the opening of the bladder neck, and the width of the prostatic urethra to play a more important role in the efficiency of urination than the width of the bladder neck.
Asunto(s)
Uretra/diagnóstico por imagen , Trastornos Urinarios/fisiopatología , Adulto , Anciano , Anciano de 80 o más Años , Humanos , Masculino , Persona de Mediana Edad , Monitoreo Fisiológico , Hiperplasia Prostática/fisiopatología , Ultrasonografía , Uretra/fisiopatología , Trastornos Urinarios/diagnóstico por imagen , UrodinámicaRESUMEN
A case of pathological dilation of seminal vesicle is presented. A 18-year-old male was admitted to our hospital with the complaints of gross hematuria and discomfort of the scrotum. IVP and abdominal CT scan revealed the left aplastic kidney, and ultrasound, vesiculography, and pelvic CT scan revealed markedly dilated bilateral seminal vesicles without filling defects. The level of serum CA19-9 was 390 u/ml, which was extremely high. After resection of dilated seminal vesicles, it returned to the normal range (37 u/ml). Sixty six cases of pathological dilation of seminal vesicle were collected from the Japanese literature. No cases showing a high level of serum CA19-9 have been reported in Japan.
Asunto(s)
Antígenos de Carbohidratos Asociados a Tumores/análisis , Vesículas Seminales/patología , Adolescente , Dilatación Patológica , Humanos , Riñón/anomalías , Masculino , Vesículas Seminales/cirugía , Tomografía Computarizada por Rayos XRESUMEN
A 76-year-old man visited our clinic with chest radiographic evidence of a coin lesion in the right middle lung. Chest CT demonstrated an infiltrative shadow mainly in the S4 segment. Lymphoproliferative disorders were suggested by transbronchial lung biopsy. Middle lobectomy was performed. Pathological study showed massive proliferation of mature lymphocytes. Immunoperoxidase studies could not demonstrate a neoplastic monoclonal process. Pseudolymphoma was diagnosed. High molecular weight DNAs were extracted from frozen specimens. Whether genes of immunoglobulins and T-cell receptors were rearranged was investigated using DNA probes against JH and TCR beta-1 receptor gene. One rearranged band was found in the JH chain. No rearranged band appeared in TCR beta-1 chain. B cell lymphoma was diagnosed instead of pseudolymphoma.
Asunto(s)
Reordenamiento Génico de Cadena Pesada de Linfocito B , Neoplasias Pulmonares/genética , Linfoma de Células B/genética , Anciano , Reordenamiento Génico de la Cadena beta de los Receptores de Antígenos de los Linfocitos T , Humanos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/cirugía , Linfoma de Células B/diagnóstico , Linfoma de Células B/cirugía , Masculino , NeumonectomíaAsunto(s)
Amdinocilina Pivoxil/uso terapéutico , Bilis/análisis , Enfermedades de las Vías Biliares/tratamiento farmacológico , Infecciones por Enterobacteriaceae/tratamiento farmacológico , Ácido Penicilánico/uso terapéutico , Administración Oral , Adulto , Anciano , Amdinocilina Pivoxil/metabolismo , Ampicilina/uso terapéutico , Cefalexina/uso terapéutico , Colangitis/tratamiento farmacológico , Colecistitis/tratamiento farmacológico , Femenino , Humanos , Masculino , Persona de Mediana EdadAsunto(s)
Cromatografía en Capa Delgada , Lípidos/sangre , Coloración y Etiquetado , Humanos , OzonoAsunto(s)
Antineoplásicos/uso terapéutico , Neoplasias del Colon/tratamiento farmacológico , Floxuridina/uso terapéutico , Neoplasias Gástricas/tratamiento farmacológico , Anciano , Anciano de 80 o más Años , Neoplasias del Colon/inmunología , Femenino , Humanos , Masculino , Proyectos Piloto , Neoplasias Gástricas/inmunologíaAsunto(s)
Trastornos Cerebrovasculares/complicaciones , Glucuronidasa/sangre , Actividades Cotidianas , Adulto , Factores de Edad , Anciano , Presión Sanguínea , Trastornos Cerebrovasculares/diagnóstico , Trastornos Cerebrovasculares/enzimología , Electrocardiografía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores SexualesRESUMEN
1. Hypertriglyceridemia and hyper beta-lipoproteinemia are closely related to the pathophysiologic status of the cerebrovascular patients. 2. The electrophoretic analysis of serum lipoprotein is the usefull method for the study on hyperlipidemia in the cerebrovascular disease. 3. The electrophoretic analysis of the serum lipoprotein gives close relation to the clinical features in the patients with normal serum lipid levels as well as in those with the hyperlipidemia. 4. Hyperlipidemia relates closely to the renal impairment, which is supposed to originate from the sclerotic changes of renal artery.
Asunto(s)
Trastornos Cerebrovasculares/complicaciones , Hiperlipidemias/complicaciones , Actividades Cotidianas , Adulto , Factores de Edad , Anciano , Hemorragia Cerebral/sangre , Hemorragia Cerebral/complicaciones , Trastornos Cerebrovasculares/sangre , Trastornos Cerebrovasculares/fisiopatología , Colesterol/sangre , Electroforesis , Femenino , Prueba de Tolerancia a la Glucosa , Humanos , Hiperlipidemias/sangre , Hiperlipidemias/fisiopatología , Pruebas de Función Renal , Lipoproteínas LDL/sangre , Lipoproteínas VLDL/sangre , Masculino , Persona de Mediana Edad , Población Rural , Triglicéridos/sangreRESUMEN
We screened 93 lesion mimic mutants of rice for resistance to the blast fungus, Magnaporthe grisea, and found eight mutants that exhibited significant resistance to the fungus. We called these mutants cdr (cell death and resistance) and further analyzed three of them. Two mutations, cdr1 and cdr2, were recessive and one, Cdr3, was dominant. Many small brownish lesions developed over the entire leaf of the mutants 20-50 days after sowing. TUNEL staining revealed that DNA fragmentation occurred in leaf blade cells of the homozygous Cdr3 mutants. Autofluorescence and callose deposition were visible in leaf cells of these three mutants. Activation of two defense-related genes, PBZ1 and PR1, was observed in the leaves of the mutants; high expression of PBZ1 was correlated with the lesion formation in the three mutants, whereas PR1 was constitutively expressed in the cdr2 and Cdr3 mutants irrespective of the lesion formation. Levels of momilactone A, a major phytoalexin of rice, in these mutants were increased approximately 100-400-fold relative to the wild-type levels. Suspension-cultured cells of the cdr1 and cdr2 but not Cdr3 produced higher levels of H2O2 than the wild type when treated with calyculin A, an inhibitor of protein phosphatase 1. These results suggest that biochemical lesions of cdr1 and cdr2 lie in the early signaling steps leading to activation of the NADPH oxidase and that type-1 protein phosphatase is operative in protein dephosphorylation involved in NADPH oxidase activation.
Asunto(s)
Mutación , Oryza/metabolismo , Transducción de Señal , Fragmentación del ADN , Fluorescencia , Magnaporthe/patogenicidad , Oryza/genética , Oryza/microbiología , Extractos Vegetales/biosíntesis , Especies Reactivas de Oxígeno , Sesquiterpenos , Terpenos , FitoalexinasRESUMEN
Cell death plays important roles in the development and defense of plants as in other multicellular organisms. Rapid production of reactive oxygen species often is associated with plant defense against pathogens, but their molecular mechanisms are not known. We introduced the constitutively active and the dominant negative forms of the small GTP-binding protein OsRac1, a rice homolog of human Rac, into the wild type and a lesion mimic mutant of rice and analyzed H(2)O(2) production and cell death in transformed cell cultures and plants. The results indicate that Rac is a regulator of reactive oxygen species production as well as cell death in rice.
Asunto(s)
Proteínas de Unión al GTP/química , Proteínas de Unión al GTP/fisiología , Proteínas de Plantas/química , Proteínas de Plantas/fisiología , Secuencia de Aminoácidos , Apoptosis , Muerte Celular/fisiología , Células Cultivadas , Genes Dominantes/genética , Peróxido de Hidrógeno/metabolismo , Etiquetado Corte-Fin in Situ , Datos de Secuencia Molecular , Oryza/anatomía & histología , Especies Reactivas de Oxígeno/metabolismo , Proteínas Recombinantes/metabolismo , Homología de Secuencia de Aminoácido , Factores de Tiempo , Transformación Genética , Transgenes/genéticaRESUMEN
We investigated the relationship between the cellular redox state of GSH or GSSG and tracheary element (TE) differentiation using a Zinnia experimental system, in which isolated mesophyll cells transdifferentiate to TEs. TE differentiation was suppressed by the application of L-buthionine sulfoximine (BSO), a potent inhibitor of GSH biosynthesis, at the early stage of cell culture. Application of GSSG at the early culture stage promoted the differentiation, but that of GSH or GSSG at an advanced period of culture suppressed the differentiation. Application of GSH and GSSG nullified the TE differentiation-suppressing effect of BSO. The results suggest that changes in the redox states of GSH and GSSG have a role in TE differentiation.
Asunto(s)
Disulfuro de Glutatión/fisiología , Glutatión/fisiología , Asteraceae/metabolismo , Células Cultivadas , Glutatión/biosíntesis , Glutatión/metabolismo , Disulfuro de Glutatión/metabolismo , Oxidación-ReducciónRESUMEN
A 70-year-old female was admitted to our hospital complaining of general lassitude. She had been treated for duodenal ulcer. A routine chest X-ray film at admission showed a large tumorous shadow in the right apical field. A computed tomographic scan revealed that it was a posterior mediastinal tumor containing multiple cystic lesions. After medical treatment for duodenal ulcer, a needle biopsy was performed for histological diagnosis. Under local anesthesia a small skin incision was made in the supraclavicular region to avoid parietal pleura and great vessels and a specimen was obtained by a needle guided by X-ray fluoroscopy. The tumor was diagnosed as neurilemmoma histologically. She was discharged because the complaint subsided. Five months later, however, she was again admitted complaining of righ nuchal pain. Thoracotomy was performed under general anesthesia and the tumor growing from the second intercostal nerve was resected. It was 5 x 4 x 5.5 cm in size, encapsulated and consisted of multiple cystic lesions macroscopically. It was confirmed as Antoni B type neurilemmoma histologically. The nuchal pain subsided and she has been doing well for more than three years after discharge. Recently computed tomography (CT) and ultrasonography (US) have been widely used as a guiding device for needle biopsy. In this case, however, CT guided needle biopsy was not applied for fear of possible complications such as pneumothorax. It was also impossible to perform US guided needle biopsy because the tumor was behind the costal and sternal bones and could not be visualized.(ABSTRACT TRUNCATED AT 250 WORDS)
Asunto(s)
Neoplasias del Mediastino/diagnóstico , Neurilemoma/diagnóstico , Anciano , Biopsia con Aguja/métodos , Femenino , Fluoroscopía , Humanos , Neoplasias del Mediastino/patología , Neurilemoma/patologíaRESUMEN
To evaluate the effects of ceftriaxone (CTRX) administered once daily, the biliary concentration of CTRX and daily changes in the bacterial count in bile from an indwelling T-tube were measured concomitantly. The effects on prophylaxis of postoperative infections after biliary tract surgery were also examined mainly due to clinical symptoms. The biliary CTRX levels increased rapidly and were sustained as high as 92.5-219 micrograms/ml in all patients even 24 hours after 2 g of CTRX was infused intravenously once daily. Five of 7 patients whose bile samples were positive for bacteria showed high CTRX levels in bile and almost no bacteria present after treatment. CTRX-sensitive bacteria eliminated 1 or 2 hours after the administration in response to the increase of biliary CTRX levels. The changes in bacteria count of bile may be closely related to CTRX antibiotic activity. As an antibiotic prophylaxis, other 18 patients with biliary diseases received intravenous infusion of 2 g of CTRX once daily for 5-7 days (mean 5.9 days). Thus, once-daily dose treatment of CTRX 2 g may have antibiotic effects on biliary infection and postoperative prophylaxis of biliary infections and it is indicated that the prolonged biliary levels of CTRX are essential for its efficacy.