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1.
Minerva Cardioangiol ; 63(2): 113-20, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25275714

RESUMEN

AIM: Coronary artery anomalies (CAAs) most of the time are detected at birth. The aim of this study was to report the prevalence of CAAs by investigating coronary artery angiography (CAG) images of patients admitted to the authors' hospital, a tertiary healthcare provider. METHODS: Images of 16,768 patients who underwent CAG in our hospital were evaluated regarding CAAs. RESULTS: CAAs were detected in 120 (0.7%) cases. Anomalous origin and course of arteries were observed in 86 (0.51%) cases. Seven of these cases were diagnosed with acute coronary syndrome and 5 of them were treated with angioplasty without any complication. Absence of LMCA was revealed as the most frequent anomaly in the subgroup analysis of origin and course anomalies by being spotted in 59 (49.9 %) cases of total 120. Myocardial bridge, which constituted all intrinsic coronary anomalies in our study, was determined in 18 (0.1%) patients. All of the anomalies of coronary termination were coronary artery fistulas which were seen in 16 (0.09%) of patients and 2 of them were occluded with coil. CONCLUSION: Absence of LMCA was the most frequently encountered anomaly. Although CAAs are rare cases, they can cause difficulties in CAG interventions and surgical operations. This study presents CAA frequencies of patients who performed CAG.


Asunto(s)
Angioplastia Coronaria con Balón/métodos , Angiografía Coronaria/métodos , Anomalías de los Vasos Coronarios/epidemiología , Síndrome Coronario Agudo/diagnóstico , Síndrome Coronario Agudo/epidemiología , Anciano , Anomalías de los Vasos Coronarios/diagnóstico , Anomalías de los Vasos Coronarios/fisiopatología , Femenino , Fístula/diagnóstico , Fístula/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Puente Miocárdico/diagnóstico , Puente Miocárdico/epidemiología , Prevalencia , Estudios Retrospectivos , Centros de Atención Terciaria
2.
J Cardiovasc Pharmacol Ther ; 20(2): 221-9, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25316705

RESUMEN

BACKGROUND AND PURPOSE: To investigate the effect of thiamine and thiamine pyrophosphate on doxorubicin-induced cardiotoxicity biochemically and histopathologically and to examine whether doxorubicin cardiotoxicity is related to the conversion of thiamine into thiamine pyrophosphate and inhibition of thiamine pyrophosphokinase (TPK) enzyme. EXPERIMENTAL APPROACH: A total of 48 Albino Wistar male rats were used. Rats were divided into groups as thiamine + doxorubicin (TIA + DOX), thiamine pyrophosphate + doxorubicin (TPP + DOX), DOX, and healthy (HEA) groups. One hour after the administration of thiamine and TPP in 25 mg/kg doses, 5 mg/kg doxorubicin were injected to all groups except HEA group during 7 days. Then, the samples were collected for biochemical (glutathione [GSH], malondialdehyde [MDA], DNA damage, creatine kinase (CK), CK-MB, and troponine I [TP-I]), molecular (TPK), and histopathological examinations. KEY RESULTS: Oxidant parameters (MDA and DNA damage) decreased and antioxidant parameter (GSH) increased in TPP + DOX group. In addition, levels of CK, CK-MB, and TP-I were low in the TPP + DOX group and high in the TIA + DOX and DOX groups. Cardiac tissue was protected in TPP + DOX group, and no protective effect was observed in TIA + DOX and DOX groups. Messenger RNA expression of TPK was decreased in DOX and TIA + DOX groups. CONCLUSION AND IMPLICATIONS: The cardiotoxic effect of doxorubicin originated from the inhibition of TPK enzyme resulting in insufficient production of thiamine pyrophosphate.


Asunto(s)
Antibióticos Antineoplásicos/toxicidad , Cardiotoxicidad/etiología , Doxorrubicina/toxicidad , Tiamina Pirofosfato/farmacología , Tiamina/farmacología , Animales , Daño del ADN , Glutatión/análisis , Masculino , Malondialdehído/análisis , Miocardio/patología , Ratas , Ratas Wistar , Tiamina Pirofosfoquinasa/antagonistas & inhibidores , Tiamina Pirofosfoquinasa/genética
3.
J Physiol Pharmacol ; 65(3): 383-92, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24930510

RESUMEN

The purpose of this study was to investigate the biochemical, histopathological and immunohistochemical effects of venous blood on ischemia/reperfusion-induced oxidative DNA damage and mutation in rabbit kidneys in comparison to melatonin treatment, which has a known protective effect against ischemia/reperfusion (IR) injury. The rabbits were divided into five groups: renal ischemia (RI), renal ischemia-reperfusion (RIR), renal ischemia-venous blood-reperfusion (RIVR), melatonin + renal ischemia-reperfusion (MRIR), and the healthy sham control group (HG). Melatonin (2.5 mg/kg delivered intraperitoneally) was administered one hour prior to ischemia. In the RIVR group, 1 ml of venous blood was administered 5 minutes before the reperfusion. The xanthine oxidase activity in the kidney tissue was determined as 53.50 ± 1.72, 31.00 ± 6.39, 45.66 ± 9.20, 28.66 ± 6.05 and 14.33 ± 1.28 U/g protein; the MDA levels were 6.32 ± 0.02, 19.50 ± 1.33, 7.00 ± 0.96, 7.50 ± 0.76 and 4.75 ± 0.34 mmol/g protein; and the GSH levels were 4.50 ± 1.08, 2.76 ± 0.13, 5.48 ± 0.22, 4.93 ± 0.55 and 6.98 ± 0.33 nmol/g protein in the RI, RIR, RIVR, MRIR and HG groups, respectively. Blood, blood urea nitrogen (BUN) and creatinine levels were classified as high only in the RIR group. The MRIR and RIVR groups, in which oxidative stress was best suppressed, had much milder histopathological and immunohistochemical findings compared to the RIR group. This study has revealed that it is useful to initiate reperfusion of the ischemic tissue with venous blood.


Asunto(s)
Riñón/metabolismo , Estrés Oxidativo , Venas Renales/metabolismo , Daño por Reperfusión/prevención & control , Animales , Inmunohistoquímica , Riñón/patología , Riñón/cirugía , Masculino , Conejos , Venas Renales/patología , Venas Renales/cirugía , Daño por Reperfusión/patología , Daño por Reperfusión/cirugía
4.
Acta Physiol Hung ; 95(4): 337-47, 2008 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-19009910

RESUMEN

The aim of this study was to investigate whether an 8-week treadmill training attenuates exercise-induced oxidative stress in rat liver. Male rats were divided into untrained and trained groups. Endurance training consisted of treadmill running at a speed of 2.1 km/h, 1.5 h/day, 5 days a week for 8 weeks. To see the effects of endurance training on acute exhaustive exercise induced oxidative stress, untrained and trained rats were further devided into two groups: animals killed at rest and those killed after acute exhaustive exercise, in which the rats run at 2.1 km/h (10% uphill) until exhaustion. Acute exhaustive exercise increased malondialdehyde level in untrained but not in trained rats. It decreased the activity of glutathione peroxidase and total (enzymatic plus non-enzymatic) superoxide scavenger activity in untrained rats and catalase activity in trained rats. However, it did not affect glutathione S-transferase, glutathione reductase, superoxide dismutase and non-enzymatic superoxide radical scavenger activities in both trained and untrained rats. On the other hand, endurance training decreased glutathione peroxidase and glutathione S-transferase activities. The results suggested that endurance training attenuated exercise-induced oxidative stress in liver, probably by preventing the decreases in glutathione peroxidase and total superoxide scavenger activities during exercise.


Asunto(s)
Hígado/metabolismo , Estrés Oxidativo/fisiología , Condicionamiento Físico Animal/fisiología , Resistencia Física/fisiología , Animales , Antioxidantes/metabolismo , Glutatión Reductasa/metabolismo , Glutatión Transferasa/metabolismo , Masculino , Malondialdehído/metabolismo , Ratas , Ratas Sprague-Dawley , Carrera/fisiología , Superóxido Dismutasa/metabolismo
5.
Int J Clin Pract ; 61(9): 1530-4, 2007 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-17535304

RESUMEN

BACKGROUND: It is known that the synthesis of nitric oxide (NO) is increased in cirrhosis. In humans, NO levels were investigated mostly in adult cirrhotics with portal hypertension. Because there is no study investigating NO status in childhood cirrhosis and because Wilson's disease (WD) has some specific properties due its copper overload with powerful prooxidant action, we aimed to determine serum NO levels in children with untreated WD and to investigate the probable relationship between NO level and both clinical presentation and the severity of the disease. METHODS: Twenty children with newly diagnosed WD and sex and age matched 14 healthy children were included. Serum NO levels were determined by spectrophotometric method using Griess reaction. RESULTS: Serum NO level of children with WD and of healthy children were 156.8 +/- 28.2 and 135.6 +/- 21.17 micromol/l respectively (p = 0.024). Serum NO level was not different in respect with the clinical presentation, such as presence of ascites, neurological involvement, cholestasis or haemorrhagic diathesis. Severity of the disease did not influence the serum NO level. Serum NO levels of patients with low and normal ceruloplasmin levels were not different. CONCLUSION: It was demonstrated that serum NO level was higher in children with WD compared to healthy children. Because we could not find a correlation between raised NO and any clinical or biochemical findings in the present study, we concluded that NO could not be used as a prognostic or predicting factor in children with WD.


Asunto(s)
Degeneración Hepatolenticular/sangre , Óxido Nítrico/sangre , Adolescente , Ceruloplasmina/metabolismo , Niño , Preescolar , Cobre/metabolismo , Femenino , Humanos , Masculino
6.
Eur Surg Res ; 39(3): 136-40, 2007.
Artículo en Inglés | MEDLINE | ID: mdl-17337890

RESUMEN

BACKGROUND: In this study, we aimed to investigate serum total sialic acid (TSA) and soluble intracellular adhesion molecule-1 (sICAM-1) levels in breast cancer patients to find a correlation with the cancer stage. METHODS: The parameters from sera of 61 patients with breast cancer were measured. The concentrations of serum sICAM-1 and TSA were measured in serum samples from 61 patients with breast cancer and 25 healthy control subjects using enzyme-linked immunoassay and thiobarbituric acid method. RESULTS: Mean serum sICAM-1 and TSA levels were significantly higher in the total patient group than in the control group (p < 0.001). Thus, the correlation between TSA and sICAM-1 became more significant in metastatic breast cancer. There were significant positive correlations between TSA and sICAM-1 in stage I+II (r = 0.59, p < 0.05), stage III (r = 0.47, p < 0.05), and stage IV (r = 0.89, p < 0.01), and total patient group (r = 0.56, p < 0.001). CONCLUSION: SerumsICAM-1 and TSA levels were higher in patients with breast cancer, than that of the control group, and also in the metastatic breast cancer group. Significant correlations between serum sICAM-1 and TSA may reflect the similar function of these molecules as adhesion molecules, and their roles in the carcinogenesis of breast cancer as well as metastasis.


Asunto(s)
Neoplasias de la Mama/sangre , Molécula 1 de Adhesión Intercelular/sangre , Ácido N-Acetilneuramínico/sangre , Adulto , Anciano , Neoplasias de la Mama/patología , Estudios de Casos y Controles , Comunicación Celular , Femenino , Humanos , Persona de Mediana Edad
7.
Allergol Immunopathol (Madr) ; 34(4): 146-9, 2006.
Artículo en Inglés | MEDLINE | ID: mdl-16854347

RESUMEN

OBJECTIVE: Viral and bacterial infections in childhood decrease the likelihood of allergic diseases in later life. The frequency of allergic diseases in patients with a history of measles has been reported to be low but some studies still suggest that measles can increase the frequency of allergic diseases. The aim of this study was to investigate the frequency of allergic diseases following measles in childhood. METHODS: Fifty-two children hospitalized in our clinic with measles were compared with 51 children without measles. Allergic diseases were investigated in both groups by using the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire. In all children, allergy skin tests were performed with the four most common allergens. RESULTS: Sensitivity to Dermatophagoides pteronyssinus was less frequent in children with measles than in those without (p < 0.05). A history of nebulized salbutamol use in the emergency room in the previous 12 months was also less frequent in the measles group (p < 0.05). Inhaled corticosteroid use was more common in the group without measles (p < 0.05). CONCLUSION: The results of this study indicate that findings of allergic disease are less frequent in children with a history of measles. These children were less sensitive to D. pteronyssinus.


Asunto(s)
Hipersensibilidad/epidemiología , Sarampión/epidemiología , Administración por Inhalación , Corticoesteroides/efectos adversos , Corticoesteroides/uso terapéutico , Edad de Inicio , Albuterol/administración & dosificación , Albuterol/uso terapéutico , Alérgenos , Animales , Antígenos Dermatofagoides , Asma/epidemiología , Niño , Preescolar , Comorbilidad , Dermatitis Atópica/epidemiología , Femenino , Hospitalización , Humanos , Hipersensibilidad/genética , Hipersensibilidad Inmediata/epidemiología , Hipersensibilidad Inmediata/genética , Masculino , Sarampión/inmunología , Vacuna Antisarampión , Ácaros , Nebulizadores y Vaporizadores , Prevalencia , Ruidos Respiratorios , Rinitis Alérgica Perenne/epidemiología , Rinitis Alérgica Estacional/epidemiología , Pruebas Cutáneas , Vacunación/estadística & datos numéricos
8.
Allergol. immunopatol ; 34(4): 146-149, jul. 2006. tab
Artículo en En | IBECS | ID: ibc-049228

RESUMEN

Objective: Viral and bacterial infections in childhood decrease the likelihood of allergic diseases in later life. The frequency of allergic diseases in patients with a history of measles has been reported to be low but some studies still suggest that measles can increase the frequency of allergic diseases. The aim of this study was to investigate the frequency of allergic diseases following measles in childhood. Methods: Fifty-two children hospitalized in our clinic with measles were compared with 51 children without measles. Allergic diseases were investigated in both groups by using the International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire. In all children, allergy skin tests were performed with the four most common allergens. Results: Sensitivity to Dermatophagoides pteronyssinus was less frequent in children with measles than in those without (p < 0.05). A history of nebulized salbutamol use in the emergency room in the previous 12 months was also less frequent in the measles group (p < 0.05). Inhaled corticosteroid use was more common in the group without measles (p < 0.05). Conclusion: The results of this study indicate that findings of allergic disease are less frequent in children with a history of measles. These children were less sensitive to D. pteronyssinus


Objetivo: Las infecciones virales y bacterianas durante la niñez disminuyen la probabilidad de enfermedades alérgicas en los años posteriores. Sin embargo, a pesar de los trabajos sobre la baja frecuencia de enfermedad alérgica en pacientes con historia de sarampión, algunos estudios todavía sugieren que esta enfermedad puede causer un incremento de la frecuencia de patología alérgica. El propósito de este estudio fue investigar la frecuencia de enfermedades alérgica acaecidas después del sarampión. Métodos: Cincuenta y dos niños con sarampión hospitalizados en nuestra clínica, fueron comparados con otros 51 que no padecían la enfermedad. En ambos grupos se investigó la enfermedad alérgica por medio del cuestionario ISAAC. A todos los niños se les practicaron pruebas cutáneas a los cuatro alergenos más comunes. Resultados: La sensibilidad a D. pteronyssinus fue menos frecuente en niños con sarampión (p<0.05). La administración de salbutamol nebulizado en el servicio de urgencias en los 12 meses anteriores fue también menos frecuente en el grupo con sarampión (p<0.05). El uso de corticoides inhalados fue más común en el grupo sin sarampión (p<0.05). Conclusiones: Los resultados de este estudio indican que la incidencia de enfermedades alérgicas es menos frecuente en niños con historia de sarampión. En un menor porcentaje de estos niños se demostró sensibilización al D. pteronyssinus


Asunto(s)
Niño , Adulto , Preescolar , Animales , Humanos , Hipersensibilidad/epidemiología , Hipersensibilidad/genética , Sarampión/epidemiología , Sarampión/inmunología , Administración por Inhalación , Corticoesteroides/efectos adversos , Corticoesteroides/uso terapéutico , Albuterol/administración & dosificación , Alérgenos , Asma/epidemiología , Dermatitis Atópica/epidemiología , Hipersensibilidad Inmediata/epidemiología , Nebulizadores y Vaporizadores , Ruidos Respiratorios , Rinitis Alérgica Perenne , Ácaros , Rinitis Alérgica Estacional
9.
Neurol India ; 53(1): 90-2, 2005 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-15805663

RESUMEN

BACKGROUND: Meningitis, termed as foreign material collection in the subarachnoid space, leads to various meningeal, cerebral and spinal cord pathologies. Meningitis still remains a problematic disease with severe complications in spite of advanced medical technology. AIMS: In this study, we aimed to investigate the role of cisternal irrigation in the prevention of meningitis complications. SETTING AND STUDY DESIGN: Experimental study was done in the Social Security Hospital of Erzurum. Histopathological specimens were evaluated in the Pathology Department in the Ataturk University Research Hospital, Erzurum, Turkey. MATERIALS AND METHODS: This study was conducted on twelve lambs. Experimental meningitis was achieved with streptococcus pneumonia. Two animals were not treated. Ten animals were given Cefotaxime (4 x 1g/day) for 20 days, and additionally half of these animals underwent cisternal irrigation. Then, all animals were sacrificed and brains were observed histopathologically. RESULTS: Massive purulent CSF formation, hemorrhagic cortical lesions, vascular congestion, leptomeningeal and cortical adhesions and brain edema were observed in the non-irrigated group, but these findings were observed slightly or absent in the irrigated group. CONCLUSION: Meningitis can affect all central neural tissues, consequently serious central nervous system lesions may develop. The irrigation procedure may decrease the percentage and severity of meningitis complications by way of the excretion of inflamed purulent collection from the subarachnoid spaces.


Asunto(s)
Cisterna Magna/microbiología , Meningitis Neumocócica/líquido cefalorraquídeo , Meningitis Neumocócica/terapia , Irrigación Terapéutica/métodos , Animales , Cateterismo , Líquido Cefalorraquídeo/microbiología , Ovinos
10.
Clin Neuropathol ; 24(2): 86-90, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-15803808

RESUMEN

Lipid embolism is a serious and life-threatening problem and usually arises as a complication of severe trauma associated with long bone or pelvic fractures. It is generally thought that fat droplets enter the circulation at the site of fracture. In the systemic circulation, they become emboli to brain, kidney and other areas. Lipids are absorbed from the intestinal tract and transported into pulmonary tissue via thoracic duct and exposed to first catabolic procedures in the lungs. We have predicted that systemic lipid embolism may not occur unless bone fractures lead to pulmonary injury. This study was planned to investigate this hypothesis with respect to the role of pulmonary contusion and long bone fractures in the formation of cerebral fat embolism. Twenty male hybrid rabbits were included in this study. Pulmonary contusion was performed on half of the rabbits (n = 10) and femur fracture was applied to the remaining ones (n = 10). Ten days after procedure, all rabbits were sacrificed. Brain specimens were taken by frozen-section method and stained with Sudan black. Intraarteriolar lipid particles in the brain were examined microscopically. Cerebral fat embolism was detected in seven animals exposed to pulmonary contusion and only in one animal exposed to femur fracture. The mean number of branches of middle cerebral artery at midparietal level occluded with fat particles were higher in the pulmonary contusion group than in the long bone fracture group. In conclusion, we found that pulmonary contusion had more deleterious effects than long bone fracture in the formation of cerebral fat embolism.


Asunto(s)
Contusiones/complicaciones , Embolia Grasa/etiología , Fracturas del Fémur/complicaciones , Infarto de la Arteria Cerebral Media/etiología , Embolia Intracraneal/etiología , Lesión Pulmonar , Animales , Quimera , Contusiones/patología , Embolia Grasa/patología , Infarto de la Arteria Cerebral Media/patología , Embolia Intracraneal/patología , Pulmón/patología , Masculino , Conejos , Índice de Severidad de la Enfermedad
12.
Rheumatology (Oxford) ; 43(11): 1429-33, 2004 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-15304675

RESUMEN

OBJECTIVE: To investigate the effect of individualized diet challenges consisting of allergenic foods, defined by the skin prick test (SPT), on tumour necrosis factor-alpha (TNF-alpha) and interleukin-1beta (IL-1beta) levels in patients with rheumatoid arthritis (RA). METHODS: Twenty patients with a positive SPT response for food extracts and 20 with a negative SPT response were enrolled. None of the patients had active disease. All patients were fasted for the most common allergenic foods for 12 days and then allocated to two groups according to SPT results. Food challenges were performed with allergenic foods in the prick-positive group (PPG) and with corn and rice in the prick-negative group (PNG) for a period of 12 days. Then, allergenic foods were excluded from the PPG patients' diet and corn and rice were removed from the PNG patients' diet. Clinical examinations were performed after fasting (baseline), at the end of the challenge phase and at the end of the re-elimination phase. Stiffness, pain, tender and swollen joint counts, health assessment questionnaire (HAQ), Ritchie's articular index, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and serum TNF-alpha and IL-1beta levels were measured. RESULTS: TNF-alpha (P < 0.01), IL-1beta (P < 0.05), ESR (P < 0.05) and CRP (P = 0.001) levels and all of the clinical variables, except HAQ, were increased with food challenges in the PPG. These increases were also recorded after the re-elimination phase. In the PNG, no significant change was seen in any of the variables, except pain (P < 0.05). During the study, important differences were observed for most of the variables between the two groups. Thirteen (72%) patients in the PPG and three (18%) in the PNG experienced disease exacerbation with challenges. This aggravation continued after elimination. CONCLUSIONS: Our results suggest that individualized dietary revisions may regulate TNF-alpha and IL-1beta levels in selected patients with RA.


Asunto(s)
Artritis Reumatoide/dietoterapia , Artritis Reumatoide/inmunología , Hipersensibilidad a los Alimentos/complicaciones , Interleucina-1/biosíntesis , Factor de Necrosis Tumoral alfa/biosíntesis , Adulto , Alérgenos/inmunología , Artritis Reumatoide/etiología , Dieta/efectos adversos , Femenino , Hipersensibilidad a los Alimentos/diagnóstico , Hipersensibilidad a los Alimentos/inmunología , Humanos , Masculino , Persona de Mediana Edad , Dimensión del Dolor , Índice de Severidad de la Enfermedad , Pruebas Cutáneas
13.
Clin Exp Med ; 2(1): 39-43, 2002 May.
Artículo en Inglés | MEDLINE | ID: mdl-12049188

RESUMEN

Preeclampsia is a pregnancy specific disorder and is thought to be associated with generalized endothelial dysfunction. P-selectin, an adhesion molecule, mediates the interaction of monocytes, platelets, and endothelial cells. Increased P-selectin levels and altered lipid and lipoprotein metabolism were reported in preeclampsia and during pregnancy. In order to investigate the relationship between serum P-selectin and lipoprotein(a), and other lipid parameters, 28 preeclampsia [13 severe (group I) and 15 mild preeclampsia (group II), 15 healthy pregnant (group III) and 20 non-pregnant (group IV)] women were investigated. Serum P-selectin, lipoprotein(a), total cholesterol, triglyceride, and high density lipoprotein cholesterol were measured and low-density lipoprotein cholesterol was derived. Serum P-selectin concentrations were consistently and significantly higher in the severe preeclampsia group than in the mild preeclampsia, healthy pregnancy, and non-pregnant control groups (P<0.0001, for all). The mild preeclampsia group also had increased serum P-selectin concentrations compared with the healthy pregnancy group and non-pregnant controls (P<0.05 and P<0.0001, respectively). Serum P-selectin and lipoprotein(a) levels revealed a significant and linear increase with the severity of preeclampsia. There were also significant (in groups I and II) and borderline (in groups III and IV) correlations between P-selectin and total cholesterol. The present study suggests that P-selectin may be an additional risk marker for preeclampsia, and may be useful in distinguishing women with mild and severe preeclampsia and normal pregnancy.


Asunto(s)
Lipoproteína(a)/sangre , Selectina-P/sangre , Preeclampsia/sangre , Adulto , HDL-Colesterol/sangre , LDL-Colesterol/sangre , Femenino , Edad Gestacional , Humanos , Embarazo , Estadística como Asunto
14.
Arch Androl ; 48(3): 181-5, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-11964210

RESUMEN

There is an inverse correlation between seminal plasma nitric oxide (NO) concentration and sperm parameters (motility and concentration) in patients with varicocele. This study investigated whether this occurs in patients with oligo- and/or asthenozoospermia due to causes other than varicocele. A total of 69 (19 with varicocele and oligo- and/or asthenozoospermia [group 1], 30 from oligo- and/or asthenozoospermic ones without varicocele [group 2], and 20 from healthy subjects [control group]) semen samples were analyzed. While group 1 had a significantly higher NO concentration in the seminal plasma compared to both the control group and group 2, there was no significant difference between group 2 and the control group (p >.05). In group 1, but not in the other groups, there was an inverse correlation between the seminal plasma NO concentration and sperm motility and concentration. NO production could be specifically related to the varicocele, since NO production in oligo- and/or asthenozoospermia cases without varicocele is not increased.


Asunto(s)
Óxido Nítrico/metabolismo , Oligospermia/metabolismo , Semen/metabolismo , Motilidad Espermática/fisiología , Varicocele/metabolismo , Adulto , Humanos , Masculino , Oligospermia/etiología , Oligospermia/patología , Recuento de Espermatozoides , Varicocele/complicaciones , Varicocele/patología
15.
Pharmazie ; 57(3): 204-5, 2002 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-11933853

RESUMEN

Gastroprotective and antiulcerogenic effects of the aqueous extract of Rumex patientia L. roots (D-1) were investigated in rats and compared to non-steroidal antiinflammatory drugs (NSAIDs). Whereas oral administration of high doses of NSAIDs caused stomach damage, D-1 (aqueous extract of Rumex patientia roots, 150 and 500 mg/kg) and nimesulid (100 and 300 mg/kg) did not cause any damage. In rats, the number of stress ulcers induced by the administration of 150 mg/kg of D-1 were identical to that of the control group. However, compared to the control group, the number of stress ulcers decreased 1.9 times and the size of ulceration areas decreased 1.1 times in the group treated with 500 mg/kg of D-1.


Asunto(s)
Antiulcerosos/farmacología , Plantas Medicinales/química , Polygonaceae/química , Úlcera Gástrica/tratamiento farmacológico , Úlcera Gástrica/prevención & control , Animales , Antiinflamatorios no Esteroideos , Antiulcerosos/química , Ratas , Estómago/patología , Úlcera Gástrica/inducido químicamente , Estrés Psicológico/complicaciones , Turquía
16.
J Int Med Res ; 30(1): 85-8, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-11921504

RESUMEN

Behçet's disease is a systemic vasculitis of unknown aetiology. Endothelial cell injury plays an important role in the pathogenesis and immunopathology of systemic vasculitises, but an immunopathogenic basis is also probable in Behçet's disease. E-selectin is an indicator of endothelial injury, and beta 2-microglobulin (beta 2M) is increased in immunological disorders. The serum concentrations of these two markers were determined in 40 patients with active Behçet's disease and 40 healthy controls. E-selectin was determined by enzyme-linked immunosorbent assay and beta 2M was determined by the nephelometric method. The mean (+/- SD) serum concentration of E-selectin was 122.13 +/- 62.32 ng/ml and that of beta 2M was 0.31 +/- 0.05 mg/dl. Both concentrations were statistically significantly increased in patients with Behçet's disease compared with controls. More comprehensive studies are needed to determine whether these parameters are useful indicators of the activity of Behçet's disease.


Asunto(s)
Síndrome de Behçet/sangre , Selectina E/sangre , Microglobulina beta-2/sangre , Adolescente , Adulto , Síndrome de Behçet/inmunología , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad
17.
Clin Chem Lab Med ; 39(9): 827-9, 2001 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-11601681

RESUMEN

Multiple sclerosis is a disease characterized by perivascular infiltrates and demyelination of the white matter in the central nervous system. In this study, we compared the serum and cerebrospinal fluid nitric oxide levels before and after methylprednisolone therapy, and during remission period, and investigated the relationship of nitric oxide to the activity of multiple sclerosis. Cerebrospinal fluid and serum nitric oxide levels were measured blind as nitrite plus nitrate, using the nitrate reductase and Griess reaction method in 20 patients with multiple sclerosis before and after corticosteroid therapy, and during remission period, and in 20 control subjects. Mean cerebrospinal fluid and serum nitric oxide levels were highest in the pretreatment group and lowest in the control group. There was no correlation with nitric oxide levels in these two groups. Although corticosteroid therapy did not have any great effect on Expanded Disability Status Scales, it led to a decrease in nitric oxide levels. The possible cause of this might be the inhibition of nitric oxide synthesis by methylprednisolone, or a decrease in multiple sclerosis activity. We conclude that serum or cerebrospinal fluid nitric oxide levels do not reflect the activity in multiple sclerosis.


Asunto(s)
Glucocorticoides/uso terapéutico , Metilprednisolona/uso terapéutico , Esclerosis Múltiple/tratamiento farmacológico , Óxido Nítrico/sangre , Óxido Nítrico/líquido cefalorraquídeo , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Esclerosis Múltiple/sangre , Esclerosis Múltiple/líquido cefalorraquídeo
18.
Can J Neurol Sci ; 28(2): 141-3, 2001 May.
Artículo en Inglés | MEDLINE | ID: mdl-11383939

RESUMEN

OBJECTIVE: Multiple sclerosis (MS) is a disease characterised by perivascular infiltrates and demyelination of the white matter in the central nervous system. Although the precise cause of MS remains unknown, some investigations have been carried out on antioxidant mechanisms in these patients. METHODS: In this study, malondialdehyde (MDA), as a lipid peroxidation marker, and ceruloplasmin (Cp) and transferrin (Trf), as antioxidant proteins, levels were determined in cerebrospinal fluid (CSF) and serum of 30 MS patients before and after corticosteroid therapy and in 20 control subjects. Transferrin and Cp levels were measured by the nephelometric method and MDA was measured spectrophotometrically. RESULTS: Mean MDA(serum) and MDA(CSF) levels were found to be highest in the pretreatment group and lowest in the control group. Although there was no significant difference in terms of serum Trf level, serum Cp was found higher in pre- and posttreatment groups than in the control groups. Ceruloplasmin and Trf levels of CSF were not detectable using the nephelometric method. A significant correlation was found between MDA(CSF) and MDA(serum) in the pretreatment group (r=0.58). CONCLUSIONS: These data revealed that lipid peroxidation was increased in serum and particulary in CSF of MS patients and was reduced with corticosteroid therapy.


Asunto(s)
Antioxidantes/metabolismo , Glucocorticoides/administración & dosificación , Malondialdehído/sangre , Metilprednisolona/administración & dosificación , Esclerosis Múltiple/tratamiento farmacológico , Adolescente , Adulto , Ceruloplasmina/metabolismo , Femenino , Humanos , Peroxidación de Lípido/efectos de los fármacos , Masculino , Malondialdehído/líquido cefalorraquídeo , Persona de Mediana Edad , Esclerosis Múltiple/sangre , Esclerosis Múltiple/líquido cefalorraquídeo , Transferrina/metabolismo
19.
Clin Chem Lab Med ; 39(2): 143-5, 2001 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-11341748

RESUMEN

Some mechanisms have been proposed for cataract formation in diabetes mellitus such as excessive tissue sorbitol concentrations, abnormal glycosylation of lens proteins and increased free radical production in the intraocular region. We measured total antioxidant status and uric acid levels in aqueous humor from diabetic (n=20) and non-diabetic subjects (n=16) with cataracts. The patients with diabetes and cataract had significantly lower aqueous humor total antioxidant status than those with senile cataract (p = 0.001). Serum and aqueous humor uric acid levels were significantly lower in the diabetic cataract group compared to the senile cataract group. In the diabetic cataract group, the aqueous humor antioxidant status correlated positively with the aqueous humor uric acid levels (p < 0.05). The results of this study suggest that reduced aqueous humor antioxidant status might be associated with reduced aqueous humor uric acid in patients with diabetic cataract. This decrease in aqueous humor uric acid levels might lead to the acceleration of cataract formation.


Asunto(s)
Antioxidantes/metabolismo , Humor Acuoso/metabolismo , Catarata/etiología , Catarata/metabolismo , Diabetes Mellitus Tipo 2/complicaciones , Diabetes Mellitus Tipo 2/metabolismo , Anciano , Estudios de Casos y Controles , Humanos , Persona de Mediana Edad , Ácido Úrico/metabolismo
20.
Pediatr Int ; 43(2): 157-60, 2001 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-11285068

RESUMEN

BACKGROUND: The purpose of the present study was to evaluate the severity of and factors related to osteopenia in children with cerebral palsy (CP). METHODS: Bone mineral density (BMD), calcium (Ca), phosphate (P), alkaline phosphatase (ALP), creatinine, parathyroid hormone (PTH) and 25-hydroxy vitamin D3 (25OHD3) concentrations were determined in 24 children with CP (15 ambulant, nine non-ambulant), aged between 10 months and 12 years (mean (+/-SD) 4.1+/-2.9 years). These vaules were compared with data obtained from a control group. RESULTS: Adjusted mean BMD values were lower in the patient group than in controls (P<0.05). However, there was no difference between BMD values of ambulant and non-ambulant patients. The Ca and P levels of the patient group were significantly higher than those of controls (P<0.05). CONCLUSIONS: The present study showed that BMD was decreased in all children with CP, but to a greater extent in non-ambulant children with CP, and immobilization is the major effective factor on bone mineralization.


Asunto(s)
Densidad Ósea/fisiología , Parálisis Cerebral/fisiopatología , Fosfatasa Alcalina/sangre , Enfermedades Óseas Metabólicas/etiología , Calcifediol/sangre , Calcio/sangre , Parálisis Cerebral/sangre , Niño , Preescolar , Femenino , Humanos , Masculino , Hormona Paratiroidea/sangre , Fosfatos/sangre
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