RESUMEN
BACKGROUND: Continuing education is vital for the development of the competencies of nurses and midwives. We analysed the effectiveness of a distance education programme for maternal and child health nurses and midwives in Mongolia, assessing its strengths and limitations and ways in which it could be improved. The aim of this research is to provide an analysis of the successes and failures of the programme, in order to improve future versions of this and similar programmes in Mongolia and elsewhere. METHODS: We carried out a qualitative descriptive study in Mongolia in August 2015. This consisted of three semi-structured interviews and two focus groups in the Second National Hospital, Ulaanbaatar, and three semi-structured interviews and one focus group in Dornogovi Provincial Maternal Hospital, Sainshand, Dornogovi Province. In total, there were 22 participants in our research. Data from the interviews and focus groups were thematically coded and analysed using NVivo version 10. FINDINGS: The distance education programme is well received by participants. They suggest that it has improved their clinical practice and education in a number of areas, and are anxious for the programme to continue. A number of alterations would be necessary to improve both the quality of the programme and the ability of participants to foster change on the basis of what they have learnt. This provides challenges for both the programme organizers and the providers of maternal and child health services in Mongolia. IMPLICATIONS FOR NURSING AND/OR HEALTH POLICY: The success of the distance education programme suggests that collaborations of this type are a cost-effective method of disseminating best practice in policy and practice to improve the quality of care provided to mothers and children in low-resource settings. CONCLUSIONS: A distance education programme is vital to link maternal care providers in Mongolia to new trends in care. Mongolia's relative isolation means that this programme is particularly valuable there. However, the programme could work equally well in other developing country settings.
Asunto(s)
Servicios de Salud del Niño , Educación a Distancia/organización & administración , Educación Continua en Enfermería/organización & administración , Servicios de Salud Materna , Partería/educación , Adulto , Niño , Grupos Focales , Humanos , Mongolia , Investigación en Evaluación de Enfermería , Investigación CualitativaRESUMEN
Alanine:glyoxylate aminotransferase 2 (AGXT2; EC 2.6.1.44) degrades asymmetric dimethylarginine (ADMA), a competitive inhibitor of nitric oxide (NO) synthase. Increased ADMA, reduced NO, and hypertension are shown in Agxt2 knockout mice. There are four single nucleotide polymorphisms (rs37370, rs37369, rs180749, and rs16899974) with which AGXT2 activity changes in humans and may be related to vulnerability of vascular sclerosis. To examine the relationship between them, we studied the functional haplotypes of the AGXT2 gene and decided their relationship with arteriosclerotic changes via carotid intima-media thickness (carotid IMT) in Japanese subjects. Genotyping of those polymorphisms and the carotid IMT in 1,426 Japanese subjects were then evaluated. Subjects with C-A-A-A haplotype (rs37370, rs37369, rs180749, rs16899974) showed low AGXT2 activity (P<0.0001; Pearsons correlation coefficients: 0.497). The C-A-A-A haplotype was significantly associated with mean carotid IMT (P=0.049) and max carotid IMT (P=0.004). Subjects with two C-A-A-A haplotypes exhibited thicker mean carotid IMT (P=0.022) and maximum carotid IMT (P=0.001). In multiple regression analysis, subjects with two C-A-A-A haplotypes were independently and positively associated with mean carotid IMT (P=0.02) and maximum IMT (P=0.005) after correction. There was a significant correlation between the functional variants in the AGXT2 gene and carotid IMT in Japanese. The AGXT2 genotype may be an important factor underlying atherosclerosis.
Asunto(s)
Enfermedades de las Arterias Carótidas/genética , Polimorfismo de Nucleótido Simple , Transaminasas/genética , Adulto , Anciano , Enfermedades de las Arterias Carótidas/etiología , Grosor Intima-Media Carotídeo , Femenino , Haplotipos , Humanos , Masculino , Persona de Mediana EdadRESUMEN
PURPOSE: We investigated the clinical features of Bacteroides bacteremia for 5 years to determine the risk factors for mortality and to ascertain whether bacteremia due to Bacteroides spp. is associated with colorectal carcinoma. METHODS: This study comprised a review of all patients with Bacteroides bacteremia at a teaching hospital in Tokyo from April 2003 to March 2008. We also conducted a case-control study between Bacteroides bacteremia and bacteremia due to other pathogens. RESULTS: During the study period, 25 cases of bacteremia were due to Bacteroides spp. Bacteroides bacteremia was associated with a high mortality rate (24%). Malignancy (76%) was the major comorbidity, followed by a history of surgery (40%). Colorectal carcinoma was the most frequent (n = 8, 32%) of the comorbid malignancies and was recognized as the primary infection site in six cases. Prevalence of colorectal carcinoma as comorbidity was significantly higher in Bacteroides bacteremia than in other bacteremia. CONCLUSIONS: In the Bacteroides bacteremia cases of this study, colorectal carcinoma was the major comorbidity and primary infection site. Colorectal carcinoma screening in Bacteroides bacteremia patients is potentially an important diagnostic marker for the early detection of this infection in the future.
Asunto(s)
Bacteriemia/microbiología , Infecciones por Bacteroides/microbiología , Bacteroides/aislamiento & purificación , Carcinoma/complicaciones , Neoplasias del Colon/complicaciones , Anciano , Bacteriemia/diagnóstico , Bacteriemia/epidemiología , Bacteroides/clasificación , Bacteroides/efectos de los fármacos , Infecciones por Bacteroides/diagnóstico , Infecciones por Bacteroides/epidemiología , Carcinoma/epidemiología , Carcinoma/microbiología , Estudios de Casos y Controles , Neoplasias del Colon/epidemiología , Neoplasias del Colon/microbiología , Femenino , Hospitales de Enseñanza , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , TokioRESUMEN
BACKGROUND: This study was made to present our experience and results with transperitoneal laparoscopic-assisted renal biopsy (LARB) in Nagoya University Hospital as a good alternative for open renal biopsy. METHODS: 21 patients (14 male, 7 female, mean age 58 years, range 21-83 years) were unsuitable for percutaneous renal biopsy. Therefore, they underwent laparoscopic-assisted renal biopsy. The kidney was approached transperitoneally via three ports, cortical tissue was obtained using a 16-gauge gun-mounted semiautomatic biopsy needle. Hemostasis was obtained by applying pressure on the renal puncture using gauze until bleeding had been stopped (range 5-20 min). RESULTS: Adequate cortical tissue and accurate diagnoses were obtained in all patients. Mean operative time was 83 min (range 65-120 min) and mean estimated blood loss was 5.5 ml (range 1-10 ml). There were no intraoperative complications: no open conversion, blood transfusions or gross hematuria. All patients walked about freely and could tolerate regular food on the first postoperative day. The only postoperative complication was a hernia formation at the place of trocar insertion 3 months after the operation in one patient who previously underwent multiple surgery for 3 arterial grafts and appendicitis. CONCLUSIONS: LARB is a safe and accurate procedure for obtaining cortical biopsies with minimal blood loss. Although LARB remains a surgical procedure which requires general anesthesia, LARB to date may be considered as a good alternative to open renal biopsy for patients in whom a closed percutaneous approach is either a relative or absolute contraindication.
Asunto(s)
Biopsia/métodos , Riñón/patología , Laparoscopía , Adulto , Anciano , Anciano de 80 o más Años , Biopsia/efectos adversos , Femenino , Humanos , Laparoscopía/efectos adversos , Masculino , Persona de Mediana EdadRESUMEN
Rhodotorula species are environmental basidiomycete yeasts that have emerged as a cause of fungemia in immunocompromised hosts. The insertion of a central venous catheter was identified as a major risk factor for Rhodotorula fungemia. Few cases reports have reported (1â3)-ß-D-glucan testing at the onset of Rhodotorula mucilaginosa fungemia. We report a case of catheter-related bloodstream infection due to R. mucilaginosa. Serum ß-D-glucan level was normal at the onset of the bloodstream infection. It took 5 days to culture the isolate. The patient's fever persisted after empiric treatment with micafungin, and a switch to oral voriconazole immediately resolved the fungemia.
Asunto(s)
Infecciones Relacionadas con Catéteres/sangre , Infecciones Relacionadas con Catéteres/microbiología , Fungemia/microbiología , Glucanos/sangre , Rhodotorula/aislamiento & purificación , Anciano , Antifúngicos/uso terapéutico , Infecciones Relacionadas con Catéteres/tratamiento farmacológico , Femenino , Fiebre , Fungemia/diagnóstico , Fungemia/tratamiento farmacológico , Humanos , Huésped Inmunocomprometido , Micafungina/uso terapéutico , Rhodotorula/efectos de los fármacos , Factores de Riesgo , Voriconazol/uso terapéuticoRESUMEN
BACKGROUND: Calcineurin-inhibitor-induced pain syndrome (CIPS) was used as a reference in the literature as reflex sympathetic dystrophy syndrome related to calcineurin inhibitors. Much of the literature describes CIPS that occurred after kidney and bone marrow transplantation. We describe a rare case of CIPS in induction immunosuppression before kidney transplantation, under administration of an anti-rheumatoid drug. METHODS: A 53-year-old woman had pre-status of ABO-incompatible living kidney transplantation. The patient had rheumatoid arthritis, but that was well-controlled with salazosulfapyridine as an anti-rheumatoid drug. Fourteen days before transplantation, she received induction immunosuppressive therapy consisting of tacrolimus (TAC) and mycophenolate mofetil (MMF) and she stopped taking salazosulfapyridine. The third day after that treatment, she had a high fever, fatigue, and joint pains of the knees, elbows, and wrists. RESULTS: When the patient stopped taking TAC and MMF and started taking salazosulfapyridine again, she soon recovered. Next, we challenged same induction immunosuppression therapy with administration of salazosulfapyridine; however, the patient had the same symptom. We considered that the symptom was caused by TAC or MMF, and we did not challenge-test each drug. We found that taking only TAC caused the same symptom for the patient. Also, we challenged cyclosporine (CsA) with MMF and confirmed that she did not have the symptom. CONCLUSIONS: We decided that drugs of the induction immunosuppression therapy were CsA, MMF, prednisolone, and basiliximab. The patient received induction therapy with plasmapheresis and rituximab in addition to the above-mentioned drugs, and we performed ABO-incompatible kidney transplantation for her. The post-surgical course was good, without acute rejection, and she had no pain.
Asunto(s)
Artralgia/inducido químicamente , Inhibidores de la Calcineurina/efectos adversos , Rechazo de Injerto/prevención & control , Inmunosupresores/uso terapéutico , Fallo Renal Crónico/cirugía , Trasplante de Riñón , Tacrolimus/efectos adversos , Anticuerpos Monoclonales/uso terapéutico , Antirreumáticos/uso terapéutico , Artritis Reumatoide/complicaciones , Artritis Reumatoide/tratamiento farmacológico , Basiliximab , Incompatibilidad de Grupos Sanguíneos , Ciclosporina/uso terapéutico , Femenino , Supervivencia de Injerto , Humanos , Factores Inmunológicos/uso terapéutico , Fallo Renal Crónico/complicaciones , Persona de Mediana Edad , Ácido Micofenólico/uso terapéutico , Plasmaféresis , Cuidados Preoperatorios , Proteínas Recombinantes de Fusión/uso terapéutico , Rituximab/uso terapéutico , Sulfasalazina/uso terapéuticoRESUMEN
An 11-year-old female Chihuahua exhibited respiratory distress and a computed tomography scan showed a large mass in the anterior thoracic cavity. During surgery, it was found that the mass was strongly adherent to surrounding tissue. A histopathological examination of a biopsy sample from the mass revealed proliferation of atypical epithelial cells and cartilage formation admixed with mature lymphocytes. Immunohistochemically, the tumour cells, as well as the normal canine thymic epithelial cells, were positive for pan-cytokeratin (CK), CK5/6, CK19, p63 and bone morphogenetic protein (BMP) 6. Foci of cartilage tissue were formed in association with the neoplastic epithelial tissue. In the normal canine thymus, the subcapsular epithelial cells are positive for both CK19 and BMP6. These findings indicate that the cartilage element within the tumour developed from CK19-positive neoplastic epithelial cells, which were derived from the thymic subcapsular epithelium. This case represents a novel variant of canine thymic epithelial tumour that exhibits cartilage differentiation.
Asunto(s)
Cartílago/patología , Enfermedades de los Perros/patología , Neoplasias Glandulares y Epiteliales/veterinaria , Neoplasias del Timo/veterinaria , Animales , Perros , FemeninoRESUMEN
Reductions in the concentration of retinol (vitamin A) in serum, lung and kidney were observed in rats subjected to inflammation-inducing treatments (turpentine oil injection of thermal injury). At the same time, the liver showed an almost normal vitamin A content. Feeding of retinol to vitamin A-depleted rats with inflammation revealed that intestinal absorption of retinol was still active in the inflamed state, and the livers of these rats showed good incorporation of retinol. The livers of normal and vitamin A-depleted rats subjected to the inflammatory treatments showed a normal RBP content (retinol-binding protein) and hepatic release of holo-RBP into the serum was not impaired functionally. These results suggest the possibility that the decreases of vitamin A in the lung, serum and kidney may be due primarily to enhanced local consumption of vitamin A related to the inflammation, rather than to a reduced supply of vitamin A from the liver or to decreased intestinal absorption. In bovine serum albumin (BSA)-sensitized rats produced by direct intubation of BSA into the lungs, the level of vitamin A in the lung decreased prior to that in the liver or serum, supporting the hypothesis that the decrease in vitamin A in the inflamed lungs of these rats may be due mainly to the consumption of vitamin A in the lung in response to inflammation.
Asunto(s)
Inflamación/metabolismo , Deficiencia de Vitamina A/etiología , Vitamina A/metabolismo , Animales , Quemaduras , Inflamación/etiología , Absorción Intestinal , Riñón/metabolismo , Pulmón/metabolismo , Ratas , Proteínas de Unión al Retinol/metabolismo , Albúmina Sérica Bovina , Trementina , Vitamina A/administración & dosificación , Vitamina A/sangreRESUMEN
BACKGROUND: In the current era of total mesorectal excision, local relapse remains a main cause of recurrence. Although standard treatment for locally recurrent rectal cancer (LRRC) has not been established, R0 resection represents the only potentially curative treatment. However, extended surgery accompanying bony pelvic resection is technically demanding and is still challenging. METHODS: Studied were 35 patients with LRRC who underwent combined resection of bony pelvis between August 2006 and October 2013. Safety and prognostic factors for survival were analyzed. Median follow-up was 33 months. RESULTS: Sacrectomy was performed in 32 patients and 3 patients underwent combined resection of the pubis and ischium. The dominant operative procedure was total pelvic exenteration in 30 (86%) patients. R0 resection was achieved in 27 (77%) patients. No patients died. Pelvic sepsis was the most frequent complication (40%). Recurrence developed in 20 (57%), with the lung the most frequent site (10 patients). Three-year local relapse-free survival (LRFS) and disease-free survival (DFS) were 72.1% and 32.7%, respectively. On multivariate analysis, R1 resection was the only independent risk factor for local recurrence (p = 0.010), and concomitant liver metastasis and initial non sphincter-preserving surgery were independent predictors of worse DFS (p = 0.008 and p = 0.042, respectively). CONCLUSIONS: Aggressive surgical treatment combined with bony resection for carefully selected patients with LRRC was safe with a high rate of R0 resection and favorable LRFS. However, DFS was not satisfactory even after R0 resection and the main cause was lung metastasis. Preventing distant recurrence might be a key to improve survival.
Asunto(s)
Carcinoma/cirugía , Isquion/cirugía , Recurrencia Local de Neoplasia/cirugía , Exenteración Pélvica/métodos , Hueso Púbico/cirugía , Neoplasias del Recto/cirugía , Adulto , Anciano , Carcinoma/patología , Estudios de Cohortes , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Pronóstico , Neoplasias del Recto/patologíaRESUMEN
Leptin, a satiety-regulating cytokine, is predominantly expressed by adipocytes, although recently the nonadipose tissue production of leptin has been reported. To investigate the possibility of leptin production by human scalp hair follicles, we examined leptin production and its mRNA expression by cultured human follicular papilla cells. We isolated 12 human follicular papilla cell lines from different individuals. They were identified by their morphology, their high alpha-smooth-muscle actin expression, their inability to differentiate into adipocytes, and by the lack of mRNA for adipose-specific fatty acid binding protein. All the human follicular papilla cell lines, but not neonatal human dermal fibroblasts, produced significant amounts of leptin demonstrable by enzyme-linked immunosorbent assay. We demonstrated leptin mRNA expression by human follicular papilla cell lines, but not by neonatal human dermal fibroblasts, by reverse transcription polymerase chain reaction. By immunohistochemistry and in situ hybridization, we detected both leptin protein and mRNA at the lower portion of the hair follicle, i.e., hair matrix, inner root sheath of the hair bulb, and human follicular papilla cells. In contrast, the leptin receptor with intracytoplasmic signal sequence was detected in the follicular papilla cells immunohistochemically, and the long isoform of the leptin receptor mRNA was demonstrated in the human follicular papilla cell lines by reverse transcription polymerase chain reaction. Finally, by using these human follicular papilla cell lines, we showed that cytokines such as interleukin-1 beta, tumor necrosis factor alpha, interferon-gamma, and interleukin-4, and growth factors such as epidermal growth factor, basic fibroblast growth factor, and transforming growth factor beta1, but not vascular endothelial growth factor, hepatocyte growth factor, keratinocyte growth factor, and insulin-like growth factor 1, significantly downregulated the production of leptin. These data demonstrated that human follicular papilla cells produce leptin and express the functional leptin receptor in vivo and in vitro, suggesting its autocrine function. Moreover, the regulation pattern of its production by various factors suggests a pivotal role of leptin in hair biology.
Asunto(s)
Folículo Piloso/fisiología , Leptina/genética , Adipocitos/fisiología , Adulto , Línea Celular , Clonación Molecular , Citocinas/farmacología , Femenino , Expresión Génica/efectos de los fármacos , Expresión Génica/fisiología , Sustancias de Crecimiento/farmacología , Folículo Piloso/química , Humanos , Inmunohistoquímica , Hibridación in Situ , Técnicas In Vitro , Leptina/análisis , Masculino , Persona de Mediana Edad , ARN Mensajero/análisis , Cuero Cabelludo/citologíaRESUMEN
A redundancy analysis was carried out between a doctor rating scale (D-RS) and a patient self-rating scale (P-SRS) to determine relating dimensions. The first and second major redundancy variates obtained from the P-SRS and the D-RS were rotated to obtain biorthogonality and interpretability. The obtained two concordant dimensions between the P-SRS and the D-RS were interpreted as depression and vegetative factors. Any redundancy factors before the rotations, however, did not reveal a general factor pattern. These results suggest that the two-dimensional structure is more appropriate for understanding the depression symptomatology rather than the unidimensional structure of a general or endogenous factor pattern. We also discussed how dimensional differences caused a low concordance in severity or total scores.
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Trastorno Depresivo/diagnóstico , Escalas de Valoración Psiquiátrica , Análisis de Varianza , Humanos , Reproducibilidad de los ResultadosRESUMEN
Intermittent, rhythmical myoclonus that had been present in the lower limbs of a 68-year-old man for more than 50 years was obviously increased in frequency during the period when the patients suffered from acute transverse myelitis. The same type of movements were readily induced by irrigation of the urinary bladder during the period of paraparesis. Removal of some possible inhibitory influences from a myoclonic focus in the lower spinal cord with resulting heightened excitability was thought to be the mechanism of these phenomena, although direct irritation of the myoclonic focus by the inflammatory process was also conceivable. The patient had keratosis palmoplantaris hereditaria and retinal pigment degeneration, suggesting the possibility of a congenital neuroectodermal dysplasia.
Asunto(s)
Mielitis/complicaciones , Mioclonía/etiología , Potenciales de Acción , Anciano , Electromiografía , Humanos , Queratodermia Palmoplantar/complicaciones , Pierna , Masculino , Músculos/fisiopatología , Mioclonía/fisiopatología , Degeneración Retiniana/complicaciones , Pigmentos Retinianos , Irrigación Terapéutica , Cateterismo Urinario/efectos adversosRESUMEN
To elucidate the effects of iron on lipid peroxidation, three kinds of assays were done. (i) The effects of intravenous injection of single doses of iron dextran (100 mg iron) on lipid peroxidation in various tissues and the blood plasma of rats were examined by the thiobarbituric acid reaction. Malondialdehyde concentrations were significantly elevated in the spleen, heart, and plasma 3 h after injection, whereas significant increases were observed in the liver and adipose tissue at 24 and 48 h, respectively. In the liver and spleen, the elevated malondialdehyde concentrations persisted until Day 28. In contrast, levels were reduced in the heart and adipose tissue within 4 weeks after iron injection. Plasma malondialdehyde concentrations were 70-times that of controls at 24 h after iron injection. The level subsequently decreased sharply by Day 6. In red blood cells, lipid peroxidation was not affected by iron. Malondialdehyde levels were correlated with the iron contents of the liver, spleen, heart, adipose tissue, and plasma (r value range 0.39-0.88, p less than 0.05). Furthermore, there was a strong correlation in the liver and spleen at iron levels below 2,000 micrograms/g (r = 0.94, p less than 0.0001; r = 0.94, p less than 0.0001, respectively). (ii) In vitro experiments demonstrated that the addition of iron as ferric chloride, iron dextran, ferritin, and hemosiderin to normal liver homogenate accelerated malondialdehyde production. However, such increases were less than 10% of those caused by equivalent iron in the liver homogenate of iron treated rats. (iii) Compared to controls, spleens from eight thalassemia patients showed a high level of malondialdehyde and iron.
Asunto(s)
Hierro/farmacología , Peroxidación de Lípido/efectos de los fármacos , Talasemia/metabolismo , Tejido Adiposo/química , Animales , Eritrocitos/efectos de los fármacos , Eritrocitos/metabolismo , Ferritinas/análisis , Hemosiderina/análisis , Inyecciones Intravenosas , Hígado/química , Masculino , Malondialdehído/análisis , Ratas , Ratas Endogámicas , Bazo/química , Bazo/efectos de los fármacos , Bazo/metabolismoRESUMEN
Transferrin (Tf) was found immunologically in pancreatic juice of normal rats at a concentration of 0.28 +/- 0.10 mg/ml but was found to be approximately 4-times higher in iron-deficient rats. Iron saturation of pancreatic Tf of normal rats was 40% and similar to that of serum Tf. Approximately 27% of a dose of iron from 59Fe-diferric Tf was absorbed through the ligated segments of proximal intestine in normal rats. The iron absorption ratio of 59Fe-diferric Tf was higher from the duodenal and jejunal segments than the ileum and significantly inhibited by monodansylcadaverine (MDC) or 20-times excess of unlabeled diferric Tf. The presence of Tf receptors was demonstrated by specific binding of 125I-diferric Tf to the brush border membrane vesicles of the small intestine in normal rats. The binding was not inhibited by the presence of albumin or IgG. The association constant (Ka) was 1.03 +/- 0.50 x 10(8) M-1 and number of binding sites was 5.10 +/- 0.96 x 10(12) sites/mg protein in the proximal intestine. The number of binding sites for Tf was higher in the proximal intestine than in the distal one. These results suggested that some iron was absorbed as diferric Tf into enterocytes through receptor-mediated endocytosis.
Asunto(s)
Hierro/farmacocinética , Leche/análisis , Jugo Pancreático/química , Ratas/metabolismo , Transferrina/fisiología , Animales , Bilis/química , Cadaverina/análogos & derivados , Cadaverina/farmacología , Endocitosis , Femenino , Absorción Intestinal/efectos de los fármacos , Intestino Delgado/efectos de los fármacos , Intestino Delgado/metabolismo , Masculino , Microvellosidades/metabolismo , Unión Proteica , Ratas Endogámicas , Transferrina/análisisRESUMEN
The pyrithiamine-treated rats produced by our method histopathologically exhibited the edematous lesion not only around the third ventricle and at the tegmentum of pons, as expected, but also in the cerebral cortex. These animals were, therefore, used in a biochemical study of the cerebral cortex, in particular, glucose metabolism. The results indicate an accumulation of lactate and severe impairment of the lipid metabolism in the edematous lesion of the cerebral cortex among the pyrithiamine-treated rats. The fact that oxygen consumption was hardly diminished, however, strongly suggested that amino acids were selectively supplied to the tricarboxylic acid cycle from the free amino acid pool.
Asunto(s)
Edema Encefálico/metabolismo , Corteza Cerebral/metabolismo , Compuestos de Piridinio/farmacología , Piritiamina/farmacología , Deficiencia de Tiamina/metabolismo , Aminoácidos/metabolismo , Animales , Encéfalo/efectos de los fármacos , Encéfalo/metabolismo , Edema Encefálico/inducido químicamente , Edema Encefálico/patología , Corteza Cerebral/efectos de los fármacos , Corteza Cerebral/patología , Glucosa/metabolismo , Glucólisis/efectos de los fármacos , Técnicas In Vitro , Masculino , Consumo de Oxígeno/efectos de los fármacos , Ratas , Ratas Endogámicas , Valores de Referencia , Deficiencia de Tiamina/complicaciones , Deficiencia de Tiamina/patologíaRESUMEN
In this study, we investigated whether a relationship exists between the levels of urate in vivo and lipid peroxidation during exercise. Seven healthy male subjects performed exhaustive cycling exercise under the following three conditions. The levels of urate, thiobarbituric acid reactive substances (TBARS) and allantoin in plasma and urine were examined before exercise and during a 3h recovery period. (1) Benzbromarone administration experiment: benzbromarone (an uricosuric agent) was administered orally the day before exercise. (2) IMP administration experiment: inosine 5'-monophosphate disodium salt (a precursor of urate) was administered orally the day before exercise. (3) Control experiment: no test substance was administered. The main results obtained were as follows. Plasma urate levels and total peroxyl radical-trapping antioxidant parameter (TRAP) for deproteinized plasma in the resting period significantly decreased depending on the treatment, in the order of IMP> control > benzbromarone. A significant positive correlation was evident between plasma urate levels and TRAP values for deproteinized plasma. The increase in plasma levels of allantoin was observed only in the case of IMP treatment. A significant negative correlation between plasma levels of urate in the resting period and the amounts of urinary TBARS excreted during the recovery period was recognized. These results suggest that the urate level in vivo before exercise is a factor influencing lipid peroxidation during exhaustive exercise. Furthermore, these findings support the view that urate may serve as an important freeradical scavenger in vivo.
Asunto(s)
Ejercicio Físico/fisiología , Peroxidación de Lípido/fisiología , Ácido Úrico/sangre , Ácido Úrico/orina , Adulto , Alantoína/sangre , Ácido Ascórbico/metabolismo , Benzbromarona/farmacología , Estudios de Casos y Controles , Humanos , Inosina Monofosfato/farmacología , Lactatos/sangre , Peroxidación de Lípido/efectos de los fármacos , Masculino , Estrés Oxidativo , Sustancias Reactivas al Ácido Tiobarbitúrico/metabolismo , Uricosúricos/farmacología , Vitamina E/sangreRESUMEN
To characterize the non-caseating granuloma formation in granulomatous myositis, we analyzed infiltrating mononuclear cells in 7 patients including 2 sarcoid patients, using monoclonal antibodies with a modified immunoperoxidase method. All granulomas consisting of epithelioid, infiltrating mononuclear cells and multinucleated giant cells had markedly increased numbers of CD45Ro-positive cells. The infiltrating inflammatory cells were mostly T lymphocytes and macrophages. The majority of T lymphocytes behaved as T helper/inducer subtype, expressing CD4 positivity. Although the ratio of CD4- to CD8-positive cells in the granuloma in muscle biopsies was not significantly different from that in other organs seen in systemic sarcoidosis, T helper/inducer and T suppressor/cytotoxic cells showed some characteristic distributions: CD4-positive cells accumulated in the center of, and CD8-positive cells at the periphery of, the granuloma. The distribution of infiltrating cells did not differ between muscle biopsies from patients with and without systemic sarcoidosis, suggesting that both groups share the same pathogenetic mechanism in granuloma formation.
Asunto(s)
Linfocitos T CD4-Positivos/patología , Linfocitos T CD8-positivos/patología , Miositis/patología , Anciano , Antígenos CD20/análisis , Biopsia , Linfocitos T CD4-Positivos/química , Antígeno CD56/análisis , Linfocitos T CD8-positivos/química , Estudios de Evaluación como Asunto , Femenino , Humanos , Inmunohistoquímica , Inmunofenotipificación , Antígenos Comunes de Leucocito/análisis , Masculino , Persona de Mediana Edad , Músculo Esquelético/inmunología , Músculo Esquelético/patología , Sarcoidosis/inmunología , Sarcoidosis/patologíaRESUMEN
Serum and salivary immunoglobulins were studied in 11 members of a family including 3 patients with hereditary sensory radicular neuropathy (HSRN) in 1 of whom serum immunoglobulins were measured over a period of about 6 years. It was confirmed that serum IgA and IgG levels rose as the disease progressed. Although our results do not agree, in part, with the findings of Whitaker et al. (1974) who reported an increase in IgA alone, the present study suggested that such dysimmunoglobulinaemia deserves further study. Whether dysimmunoglobulinaemia is a primary phenomenon related to the development of HSRN or simply a secondary change remains to be further explored.
Asunto(s)
Inmunoglobulinas/análisis , Radiculopatía/inmunología , Adolescente , Adulto , Niño , Femenino , Humanos , Inmunoglobulina A/análisis , Inmunoglobulina A Secretora/análisis , Inmunoglobulina G/análisis , Masculino , Persona de Mediana Edad , Linaje , Radiculopatía/genética , Factores de TiempoRESUMEN
Highly efficient catalytic oxidation of alcohols with molecular oxygen by N-hydroxyphthalimide (NHPI) combined with a Co species was developed. The oxidation of 2-octanol in the presence of catalytic amounts of NHPI and Co(OAc)2 under atmospheric dioxygen in AcOEt at 70 degrees C gave 2-octanone in 93% yield. The oxidation was significantly enhanced by adding a small amount of benzoic acid to proceed smoothly even at room temperature. Primary alcohols were oxidized by NHPI in the absence of any metal catalyst to form the corresponding carboxylic acids in good yields. In the oxidation of terminal vic-diols such as 1,2-butanediol, carbon-carbon bond cleavage was induced to give one carbon less carboxylic acids such as propionic acid, while internal vic-diols were selectively oxidized to 1,2-diketones.
RESUMEN
We report an autopsy case of duodenal bulb obstruction caused by a shiitake mushroom. A 74-year-old woman with depression was admitted to the hospital after suffering nausea and abdominal fullness for 3 days. Because the physical findings and laboratory data on admission revealed marked dehydration, lactated Ringer's solution was administered. Twelve hours later, the patient suddenly died. Autopsy showed an enlarged stomach filled with 850 ml of partially digested food. In the anal side of the pylorus, a 9-cm-diameter shiitake mushroom had become impacted, causing complete obstruction. We conclude that the patient suffered from duodenal bulb obstruction caused by the impacted mushroom and subsequently died of ileus. This case illustrates a rare cause of duodenal obstruction and emphasizes that ingested food can cause obstructive ileus and death.