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INTRODUCTION: Nasopharyngeal cancer (NPC) survivors often sustain head-neck-shoulder impairments from conventional treatments, which could disturb sleep. This novel study aimed to examine the efficacy of Tai Chi (TC) Qigong in optimizing temporomandibular joint (TMJ), cervical, and shoulder joint mobility and reducing sleep problems in NPC survivors. METHODS: Fifty-two NPC survivors participated in the study. The experimental group (n = 25) received 6 months of TC Qigong training (1.5 h/session; 4 sessions/wk including self-practice) while the control group (n = 27) received no training. Cervical side flexion and rotation, shoulder flexion and horizontal flexion range of motion (ROM), mouth opening capacity (interincisor distance), and sleep problems (Medical Outcomes Study Sleep Scale) were assessed at baseline, mid-intervention (3 months), immediately after TC Qigong training, and at 6-month follow-up. RESULTS: Intention-to-treat analysis revealed improvement in cervical side flexion ROM only (P < .008) and unchanged shoulder and TMJ mobility (P > .008) after the TC Qigong training. Deterioration was observed in shoulder flexion ROM and mouth opening capacity in the no-training controls over time (P < .008). Sleep problems also decreased in the TC Qigong group (P < .008), and this effect was most profound during the follow-up period. In addition, improvement in cervical side flexion ROM was associated with a reduction in sleep problems in the experimental group after TC Qigong training (P < .05). CONCLUSIONS: The 6-month TC Qigong intervention improved neck mobility, maintained TMJ and shoulder joint mobility, and reduced sleep problems for NPC survivors. TC Qigong could be an effective nonpharmacological intervention for managing progressive trismus, chronic neck and shoulder hypomobility, and reducing sleep problems among NPC survivors.
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Neoplasias Nasofaríngeas/fisiopatología , Dolor de Cuello/terapia , Qigong/métodos , Dolor de Hombro/terapia , Trastornos del Sueño-Vigilia/terapia , Taichi Chuan/métodos , Trastornos de la Articulación Temporomandibular/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Dolor de Cuello/fisiopatología , Rango del Movimiento Articular , Dolor de Hombro/fisiopatología , Trastornos del Sueño-Vigilia/fisiopatología , Trastornos de la Articulación Temporomandibular/fisiopatologíaRESUMEN
Objectives. To (1) compare the bone strength, lower limb muscular strength, functional balance performance, and balance self-efficacy between Ving Tsun (VT) martial art practitioners and nonpractitioners and (2) identify the associations between lower limb muscular strength, functional balance performance, and balance self-efficacy among the VT-trained participants. Methods. Thirty-five VT practitioners (mean age ± SD = 62.7 ± 13.3 years) and 49 nonpractitioners (mean age ± SD = 65.9 ± 10.5 years) participated in the study. The bone strength of the distal radius, lower limb muscular strength, functional balance performance, and balance self-efficacy were assessed using an ultrasound bone sonometer, the five times sit-to-stand test (FTSTS), the Berg balance scale (BBS), and the Chinese version of the activities-specific balance confidence scale, respectively. A multivariate analysis of covariance was performed to compare all the outcome variables between the two groups. Results. Elderly VT practitioners had higher radial bone strength on the dominant side (P < 0.05), greater lower limb muscular strength (P = 0.001), better functional balance performance (P = 0.003), and greater balance confidence (P < 0.001) than the nonpractitioners. Additionally, only the FTSTS time revealed a significant association with the BBS score (r = -0.575, P = 0.013). Conclusions. VT may be a suitable health-maintenance exercise for the elderly. Our findings may inspire the development of VT fall-prevention exercises for the community-dwelling healthy elderly.
RESUMEN
In the present study, we aimed to evaluate the hepatoprotective and antioxidant effects of Chunggan extract (CGX) in an animal model of hepatosteatosis. The C57BL/6N mice were fed either methionine- and choline-sufficient (MCS) diet (n = 10) or a methionine- and choline-deficient (MCD) diet (n = 50) for 4 weeks, and then they were treated orally with CGX (100 or 200 mg/kg), ursodeoxycholic acid (80 mg/kg, as a positive control), or distilled water (DW, MCS diet group, and MCD diet group) for the final 2 weeks (once per day). The MCD diet induced severe hepatic injury with the typical features of hepatosteatosis in both serum and hepatic tissues. CGX treatment significantly attenuated these alterations in the serum levels including triglyceride (TG), aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, and total bilirubin. Moreover, CGX also efficiently prevented from the hepatic TG accumulation in the hepatic tissue, evidenced by histopathological findings, compared with the MCD diet. In addition, CGX treatment significantly ameliorated the excessive oxidative stress and antioxidant markers in the serum as well as the hepatic levels of reactive oxygen species, the levels of malondialdehyde, the protein carbonyl, and total antioxidant capacity, and the activities of superoxide dismutase, catalase, glutathione peroxidase, and glutathione reductase. In conclusion, our results indicate the experimental relevance of CGX for potential clinical application in patients with hepatosteatotic disorders and a possible mechanism related to its antioxidant properties.
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Antioxidantes/uso terapéutico , Medicamentos Herbarios Chinos/uso terapéutico , Hígado Graso/tratamiento farmacológico , Alanina Transaminasa/sangre , Fosfatasa Alcalina/sangre , Animales , Antioxidantes/farmacología , Aspartato Aminotransferasas/sangre , Bilirrubina/sangre , Catalasa/metabolismo , Colesterol/metabolismo , Deficiencia de Colina , Dieta , Medicamentos Herbarios Chinos/farmacología , Hígado Graso/metabolismo , Glutatión/metabolismo , Glutatión Peroxidasa/metabolismo , Glutatión Reductasa/metabolismo , Hígado/metabolismo , Masculino , Metionina/deficiencia , Ratones , Ratones Endogámicos C57BL , Estrés Oxidativo , Especies Reactivas de Oxígeno/metabolismo , Superóxido Dismutasa/metabolismo , Triglicéridos/metabolismoRESUMEN
WHAT IS KNOWN AND OBJECTIVE: Although Wen-pi-tang-Hab-Wu-ling-san (WHW), an oriental herbal medicine, has been prescribed for the treatment of chronic renal failure (CRF) in Korean clinics, no studies regarding WHW-drug interactions had been reported. The purpose of this study was to evaluate the possibility that WHW inhibits the catalytic activities of major cytochrome P450 (CYP) isoforms. METHODS: The abilities of various WHW extracts to inhibit phenacetin O-de-ethylation (CYP1A2), tolbutamide 4-methylhydroxylation (CYP2C9), omeprazole 4'-hydroxylation (CYP2C19), dextromethorphan O-demethylation (CYP2D6), chlorzoxazone 6-hydroxylation (CYP2E1) and midazolam 1-hydroxylation (CYP3A4) were assessed using human liver microsomes. RESULTS AND DISCUSSION: WHW extract at concentrations up to 100 µm showed negligible inhibition of the six CYP isoforms tested (CYP1A2, CYP2C9, CYP2C19, CYP2D6, CYP2E1 and CYP3A4), with apparent IC(50) values (concentration of the inhibitor causing 50% inhibition of the original enzyme activity) of 817.5, 601.6, 521.7, 310.2, 342.8 and 487.0 µg/mL, respectively. WHAT IS NEW AND CONCLUSION: Our in vitro findings suggest that WHW extract at concentrations corresponding to a clinically recommended dosage range has no notable inhibitory effects on CYP isoforms. Therefore, we believe that WHW extract may be free of drug-herb interactions when co-administered with other medicines. However, in vivo human studies are needed to confirm these results.
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Inhibidores Enzimáticos del Citocromo P-450 , Medicamentos Herbarios Chinos/farmacología , Interacciones de Hierba-Droga , Microsomas Hepáticos/efectos de los fármacos , Sistema Enzimático del Citocromo P-450/metabolismo , Relación Dosis-Respuesta a Droga , Medicamentos Herbarios Chinos/administración & dosificación , Humanos , Técnicas In Vitro , Concentración 50 Inhibidora , Isoenzimas , Microsomas Hepáticos/enzimología , República de CoreaRESUMEN
Dermatofibroma (DF) is a common benign fibrohistiocytic tumour with a predilection for the legs in middle-aged women. Giant DF, a rare clinical variant of DF, is characterized by its unusually large size. Granular cell change is typical of granular cell tumour, but can be observed in diverse cell lineages. Traumatic factors may be involved in the pathogenesis of giant DF and cellular granularity. We describe a 49-year-old Korean man with a giant DF showing granular cell differentiation, which may have been caused in part by multiple treatments with bee-venom acupuncture.
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Terapia por Acupuntura/efectos adversos , Venenos de Abeja/efectos adversos , Histiocitoma Fibroso Benigno/etiología , Neoplasias Cutáneas/etiología , Biopsia , Histiocitoma Fibroso Benigno/patología , Humanos , Masculino , Persona de Mediana Edad , Neoplasias Cutáneas/patologíaRESUMEN
BACKGROUND AND PURPOSE: Doxorubicin evokes oxidative stress and precipitates cell apoptosis in testicular tissues. The aim of this study was to investigate whether the Ginkgo biloba extract 761 (EGb), a widely used herbal medicine with potent anti-oxidant and anti-apoptotic properties, could protect testes from such doxorubicin injury. EXPERIMENTAL APPROACH: Sprague-Dawley male rats (8 weeks old) were given vehicle, doxorubicin alone (3 mg kg(-1) every 2 days for three doses), EGb alone (5 mg kg(-1) every 2 days for three doses), or EGb followed by doxorubicin (each dose administered 1 day after EGb). At 7 days after the first drug treatment oxidative and apoptotic testicular toxicity was evaluated by biochemical, histological and flow cytometric analyses. KEY RESULTS: Compared with controls, testes from doxorubicin-treated rats displayed impaired spermatogenesis, depleted haploid germ cell subpopulations, increased lipid peroxidation products (malondialdehyde), depressed antioxidant enzyme activities (superoxide dismutase, glutathione peroxidase and glutathione), reduced antioxidant enzyme expression (superoxide dismutase) and elevated apoptotic indexes (pro-apoptotic modulation of Bcl-2 family proteins, intensification of p53 and Apaf-1, release of mitochondrial cytochrome c, activation of caspase-3 and increase of terminal deoxynucleotidyl transferase nick-end labelling/sub-haploid cells), while EGb pretreatment effectively alleviated all of these doxorubicin-induced abnormalities in testes. CONCLUSIONS AND IMPLICATIONS: These results demonstrate that EGb protected against the oxidative and apoptotic actions of doxorubicin on testes. EGb may be a promising adjuvant therapy medicine, potentially ameliorating testicular toxicity of this anti-neoplastic agent in clinical practice.
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Antibióticos Antineoplásicos/efectos adversos , Antioxidantes/farmacología , Apoptosis/efectos de los fármacos , Doxorrubicina/efectos adversos , Estrés Oxidativo , Extractos Vegetales/farmacología , Testículo/efectos de los fármacos , Proteína p53 Supresora de Tumor/metabolismo , Animales , Factor Apoptótico 1 Activador de Proteasas/metabolismo , Caspasa 3/metabolismo , Citocromos c/metabolismo , Modelos Animales de Enfermedad , Ginkgo biloba , Glutatión/metabolismo , Glutatión Peroxidasa/metabolismo , Masculino , Malondialdehído/metabolismo , Mitocondrias/fisiología , Proteínas Proto-Oncogénicas c-bcl-2/metabolismo , Ratas , Ratas Sprague-Dawley , Espermatogénesis/efectos de los fármacos , Superóxido Dismutasa/metabolismo , Testículo/metabolismo , Testículo/patologíaRESUMEN
Acute oral toxicity of methanol extract of Asiasari radix was evaluated in ICR mice of both sexes. In this study, mice were administrated orally with dosages of 1000, 3000, and 5000 mg/kg body weight of Asiasari radix extract. Mortality, signs of toxicity, body weight, food consumption, and gross findings were observed for 14 days post treatment of Asiasari radix extract. No mortality, signs of toxicity, and abnormalities in gross findings were observed. In addition, no significant differences were noticed in the body and organ weights between the control and treated groups of both sexes. These results show that the methanol extract of Asiasari radix is toxicologically safe by oral administration.
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Aristolochiaceae , Medicamentos Herbarios Chinos/toxicidad , Pruebas de Toxicidad Aguda , Administración Oral , Animales , Aristolochiaceae/química , Aristolochiaceae/toxicidad , Peso Corporal/efectos de los fármacos , Medicamentos Herbarios Chinos/aislamiento & purificación , Femenino , Dosificación Letal Mediana , Masculino , Ratones , Ratones Endogámicos ICR , Tamaño de los Órganos/efectos de los fármacosAsunto(s)
Terapia por Luz de Baja Intensidad/efectos adversos , Recurrencia Local de Neoplasia/diagnóstico , Nevo Pigmentado/diagnóstico , Neoplasias Cutáneas/diagnóstico , Adolescente , Brazo/patología , Diagnóstico Diferencial , Femenino , Humanos , Melanoma/diagnóstico , Recurrencia Local de Neoplasia/etiología , Recurrencia Local de Neoplasia/patología , Nevo Pigmentado/etiología , Nevo Pigmentado/patología , Neoplasias Cutáneas/etiología , Neoplasias Cutáneas/patologíaRESUMEN
A gene encoding a copper/zinc superoxide dismutase (Cu/ Zn-SOD) of a filarial nematode, Brugia malayi, has been isolated and the biochemical properties of a functionally expressed recombinant enzyme were investigated. The cloned complementary DNA contained a single open reading frame of 477 bp encoding 158 amino acids (aa), which conserved metal-binding residues as well as residues specific for Cu/Zn-SODs. Comparison of the deduced aa sequence of the enzyme with that of other helminthes species, including filarial worms, exhibited high degree of similarities (49-98%). Recombinant enzyme of 32 kDa had an isoelectric point of 6.6 and was shown to consist of 2 subunits linked by interchain disulfide bonds. Enzyme activity of the recombinant protein was inhibited by potassium cyanide and hydrogen peroxide but not by sodium azide. It showed a wide range of pH optima, i.e., 7.0-11.0 and was highly resistant to heat inactivation.
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Brugia Malayi/enzimología , Superóxido Dismutasa/genética , Secuencia de Aminoácidos , Animales , Secuencia de Bases , Brugia Malayi/genética , ADN Complementario/química , Electroforesis en Gel de Poliacrilamida , Regulación Enzimológica de la Expresión Génica , Gerbillinae , Concentración de Iones de Hidrógeno , Punto Isoeléctrico , Datos de Secuencia Molecular , Sistemas de Lectura Abierta/genética , Reacción en Cadena de la Polimerasa , ARN de Helminto/genética , ARN Mensajero/genética , Proteínas Recombinantes/química , Proteínas Recombinantes/genética , Proteínas Recombinantes/metabolismo , Superóxido Dismutasa/antagonistas & inhibidores , Superóxido Dismutasa/química , Superóxido Dismutasa/metabolismoRESUMEN
Excessive nitric oxide (NO) produced by inducible NO synthase (iNOS) acts as a causative regulator in various inflammatory disease states. Carpesium divaricatum has been used in Korean traditional herbal medicine for its antipyretic, analgesic, vermifugic, and anti-inflammatory properties. We investigated the molecular mechanism for the suppression of lipopolysaccharide/interferon-gamma (LPS/IFN-gamma)-induced NO production in RAW 264.7 macrophages by the sesquiterpene lactone 2beta,5-epoxy-5,10-dihydroxy-6alpha-angeloyloxy-9beta-isobutyloxy-germacran-8alpha,12-olide (C-1), which has been identified recently as a new compound from C. divaricatum. C-1 decreased NO production in LPS/IFN-gamma-stimulated RAW 264.7 cells in a concentration-dependent manner, with an IC50 of approximately 2.16 microM; however, it had no direct effect on the iNOS activity of fully LPS/IFN-gamma-stimulated RAW 264.7 cells. Furthermore, treatment with C-1 led to a decrease in iNOS protein and mRNA. These effects appear to be due to inhibition of nuclear factor-kappaB (NF-kappaB) activation through a mechanism involving stabilization of the NF-kappaB/inhibitor of the kappaB (I-kappaB) complex, since inhibition of NF-kappaB DNA binding activity by C-1 was accompanied by a parallel reduction of nuclear translocation of subunit p65 of NF-kappaB and I-kappaBalpha degradation. Taken together, the results suggest that the ability of C-1 to inhibit iNOS gene expression may be responsible, in part, for its anti-inflammatory effects.
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Proteínas I-kappa B , FN-kappa B/antagonistas & inhibidores , Óxido Nítrico Sintasa/biosíntesis , Plantas Medicinales/química , Sesquiterpenos/farmacología , Animales , Transporte Biológico/efectos de los fármacos , Catálisis , Núcleo Celular/efectos de los fármacos , Núcleo Celular/metabolismo , Supervivencia Celular/efectos de los fármacos , Células Cultivadas , Proteínas de Unión al ADN/metabolismo , Represión Enzimática/efectos de los fármacos , Interferón gamma/farmacología , Ligasas/metabolismo , Lipopolisacáridos/farmacología , Ratones , Inhibidor NF-kappaB alfa , FN-kappa B/metabolismo , Óxido Nítrico/metabolismo , Óxido Nítrico Sintasa/genética , Óxido Nítrico Sintasa/metabolismo , Óxido Nítrico Sintasa de Tipo II , Nitritos/metabolismo , Fitoterapia , ARN Mensajero/biosíntesis , ARN Mensajero/efectos de los fármacosRESUMEN
From an edible mushroom Lepiota americana Pk., (Agaricaceae), 2-aminophenoxazin-3-one that inhibited aromatase at IC50 = 5.7 microM and 3 beta-hydroxy-5,8-epidioxyergosta-6,22-diene that inhibited sulfatase at IC50 = 0.9 microM were isolated. Neither 2-aminophenoxazin-3-one was active against sulfatase nor was 3 beta-hydroxy-5,8-epidioxyergosta-6,22-diene active against aromatase.
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Agaricales/química , Inhibidores de la Aromatasa , Inhibidores Enzimáticos/aislamiento & purificación , Ergosterol/análogos & derivados , Oxazinas/aislamiento & purificación , Sulfatasas/antagonistas & inhibidores , Inhibidores Enzimáticos/química , Inhibidores Enzimáticos/farmacología , Ergosterol/química , Ergosterol/aislamiento & purificación , Ergosterol/farmacología , Espectroscopía de Resonancia Magnética , Estructura Molecular , Oxazinas/química , Oxazinas/farmacologíaRESUMEN
In bioassay-guided search for inducible nitric oxide synthase (iNOS) inhibitory compounds from higher plants of South Korea, two beta-carboline alkaloids, 4-methoxy-1-vinyl-beta-carboline (1) and 4,8-dimethoxy-l-vinyl-beta-carboline (2) have been isolated from the cortex of Melia azedarach var. japonica. The structures of these compounds were elucidated on the basis of spectroscopic data. Compounds 1 and 2 showed marked inhibitory activity of iNOS on LPS- and interferon-gamma-stimulated RAW 264.7 cells.
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Carbolinas/farmacología , Inhibidores Enzimáticos/farmacología , Óxido Nítrico Sintasa/antagonistas & inhibidores , Plantas Medicinales/química , Carbolinas/aislamiento & purificación , Línea Celular , Cromatografía por Intercambio Iónico , Relación Dosis-Respuesta a Droga , Inhibidores Enzimáticos/aislamiento & purificación , Humanos , Interferón gamma/farmacología , Corea (Geográfico) , Lipopolisacáridos/farmacología , Espectroscopía de Resonancia Magnética , Óxido Nítrico Sintasa de Tipo II , Extractos Vegetales/química , Extractos Vegetales/farmacología , Espectrofotometría Infrarroja , Espectrofotometría UltravioletaRESUMEN
During efforts for cloning disease resistance-responsive genes, a cDNA encoding a putative Nicotiana glutinosa glycine-rich RNA binding protein (ngRBP) was isolated from TMV induced cDNA library. Northern blot hybridization revealed that ngRBP gene is negatively regulated during early hours of TMV induced acute hypersensitive response (HR). Under greenhouse conditions induced expression of ngRBP gene was observed after 24 h following TMV infection. Salicylic acid and copper also induced ngRBP mRNA expression. Our findings are suggestive of some possible role for ngRBP in plant-pathogen interaction.
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Regulación de la Expresión Génica de las Plantas , Regulación Viral de la Expresión Génica , Nicotiana/genética , Enfermedades de las Plantas/genética , Proteínas de Plantas/genética , Plantas Tóxicas , Proteínas de Unión al ARN/genética , Virus del Mosaico del Tabaco/patogenicidad , Secuencia de Aminoácidos , Cobre/farmacología , ADN Complementario , Regulación de la Expresión Génica de las Plantas/efectos de los fármacos , Regulación Viral de la Expresión Génica/efectos de los fármacos , Datos de Secuencia Molecular , Salicilatos/farmacología , Ácido Salicílico , Homología de Secuencia de Aminoácido , Nicotiana/microbiologíaRESUMEN
The Na+/Ca2+ exchanger (NCE) contributes to Ca2+ reabsorption by connecting tubules of the nephron. A line of renal epithelial cells from monkey kidney (LLC-MK2) was used to investigate the regulation of NCE expression. After the activation of protein kinase C (PKC) by phorbol myristate acetate (PMA), NCE activity decreased exponentially by 75% in 48 h (half time approximately 19 h). PMA decreased NCE mRNA by 85% in 24 h. The decrease in NCE transcript preceded the downregulation of NCE activity. NCE protein was quantified with a monoclonal antibody to cardiac NCE. PMA decreased the binding of 3H-labeled antibody to cell sonicates by 40% in 24 h. Immunoblots show that PMA produced a marked and extended increase in membrane-associated PKC-alpha, although PMA depleted total PKC-alpha by 65% in 24 h. In vivo 32P labeling of myristolated alanine-rich C kinase substrate, a specific PKC substrate, confirmed that PMA produced a rapid and extended activation of PKC. 4 alpha-PMA, a stereoisomer of PMA that neither binds nor activates PKC, had no effect on NCE activity or transcript. These findings indicate that activation of PKC with phorbol esters downregulates NCE mRNA, protein, and activity in renal epithelial cells.
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Proteínas Portadoras/antagonistas & inhibidores , Péptidos y Proteínas de Señalización Intracelular , Riñón/metabolismo , Proteínas de la Membrana , Acetato de Tetradecanoilforbol/farmacología , Animales , Proteínas Portadoras/genética , Proteínas Portadoras/metabolismo , Línea Celular , Regulación hacia Abajo , Células Epiteliales , Epitelio/metabolismo , Haplorrinos , Riñón/citología , Sustrato de la Proteína Quinasa C Rico en Alanina Miristoilada , Fósforo/metabolismo , Proteína Quinasa C/metabolismo , Proteínas/metabolismo , Intercambiador de Sodio-Calcio , Transcripción Genética/efectos de los fármacosRESUMEN
OBJECTIVE: We studied the value of sonography in determining the site and cause of colonic obstruction. MATERIALS AND METHODS: Sonographic findings in 26 patients with known (n = 21) or suspected (n = 5) colonic obstruction on the basis of clinical findings and abdominal radiographs were correlated with radiologic and surgical findings. Colonic obstruction was proved in all with findings from surgery (n = 18) or from barium enema and CT (n = 8). Causes of the obstructions included colorectal cancer (n = 13), ileocolic intussusception (n = 11), transverse colonic adhesion (n = 1), and sigmoid volvulus (n = 1). Sonographic criterion of obstruction was the demonstration of a continuous distension of colonic loop with an abrupt transition to an empty distal colon. The value of sonography in terms of indicating the level and cause of colonic obstruction was evaluated. RESULTS: The location of colonic obstruction was established by using sonography in 22 (85%) of 26 cases, and the cause of obstruction was identified in 21 (81%) cases. Sonography depicted a mass (n = 5) or a segmental wall thickening (n = 5) in cases of colon cancer, and a target or doughnut sign in cases of ileocecal intussusception (n = 11). Sonography failed to depict the cause of obstruction in three cases of colon cancer and one case each of adhesion and sigmoid volvulus. CONCLUSION: Our experience suggests that sonography is useful for examining patients with colonic obstruction to determine the level and cause of the obstruction.
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Enfermedades del Colon/diagnóstico por imagen , Obstrucción Intestinal/diagnóstico por imagen , Adenocarcinoma/complicaciones , Adenocarcinoma/diagnóstico por imagen , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma/complicaciones , Carcinoma/diagnóstico por imagen , Carcinoma/secundario , Niño , Preescolar , Enfermedades del Colon/etiología , Neoplasias del Colon/complicaciones , Neoplasias del Colon/diagnóstico por imagen , Neoplasias del Colon/secundario , Femenino , Humanos , Enfermedades del Íleon/complicaciones , Enfermedades del Íleon/diagnóstico por imagen , Obstrucción Intestinal/etiología , Intususcepción/complicaciones , Intususcepción/diagnóstico por imagen , Masculino , Persona de Mediana Edad , Radiografía , Adherencias Tisulares/complicaciones , Adherencias Tisulares/diagnóstico por imagen , UltrasonografíaAsunto(s)
Apendicitis/complicaciones , Enfermedades del Íleon/complicaciones , Obstrucción Intestinal/complicaciones , Perforación Intestinal/complicaciones , Enfermedad Aguda , Apendicitis/diagnóstico por imagen , Sulfato de Bario , Enema , Humanos , Enfermedades del Íleon/diagnóstico por imagen , Lactante , Obstrucción Intestinal/diagnóstico por imagen , Masculino , Radiografía , Rotura EspontáneaRESUMEN
Adrenalectomy induces a hypersensitivity in the rat to ammonia intoxication. Daily injection of hydrocortisone hydrochloride to adrenalectomized rats restored normal sensitivity to ammonia intoxication, with concomitant restoration of liver urea-synthesizing capacity to the normal value. When injected with a large dose of ammonium acetate, hydrocortisone-treated adrenalectomized rats were able to reduce the plasma ammonia concentration much more rapidly than the adrenalectomized control rats. However, neither the increase in liver urea synthesis nor the more rapid decrease in the plasma ammonia concentration were sufficient to explain the protective aciton of hydrocortisone against ammonia intoxication.