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1.
Cardiovasc Radiat Med ; 5(2): 71-6, 2004.
Article in English | MEDLINE | ID: mdl-15464943

ABSTRACT

PURPOSE: Based on our preclinic studies with autologous unfractionated bone marrow (AUBM) via coronary sinus with transitory occlusion, a clinic study in patients with chronic stable angina was designed. The objectives were to evaluate safety, tolerance and feasibility. METHODS AND MATERIALS: A multicenter prospective study with inclusion and exclusion criteria defined by an Independent Clinical Committee was carried out. Fourteen patients underwent transcoronary sinus administration of freshly aspirated and filtered AUBM (60-120 ml). Safety and tolerance were evaluated. Feasibility was evaluated with Seattle Angina Questionnaire (SAQ), Canadian Cardiovascular Society (CCS) angina classification (baseline-Day 180), myocardial perfusion (baseline-Day 90) with independent core laboratory and coronary angiography (baseline and Day 30). RESULTS: There were no changes in the safety and tolerance parameters. Preliminary clinical efficacy at Day 180 disclosed a significant improvement of 38%, evaluated by the SAQ. The CCS angina classification shows that the mean angina class was 3.0+/-0.55 at baseline and improved to 2.0+/-0.00 at Day 180 (P <.001). Semiquantitative radionuclide perfusion imaging (core lab) showed a significant improvement at Day 90 in 13/14 patients, with a mean improvement of 24% at rest (P <.01) and 33% at stress (P <.05). Coronary angiography showed more collateral vessels in 9/14 patients. CONCLUSIONS: We can conclude that AUBM via coronary sinus with transitory occlusion is tolerable and safe. Significant improvement in the myocardial perfusion at Day 90 and in the quality of life at Day 180 was observed.


Subject(s)
Angina Pectoris/therapy , Bone Marrow Transplantation/methods , Coronary Vessels , Angina Pectoris/complications , Bone Marrow Transplantation/adverse effects , Chronic Disease , Coronary Angiography/methods , Coronary Artery Disease/complications , Coronary Circulation , Feasibility Studies , Female , Heart/diagnostic imaging , Humans , Male , Middle Aged , Pilot Projects , Prospective Studies , Tomography, Emission-Computed, Single-Photon/methods , Transplantation, Autologous , Treatment Outcome
2.
Cardiovasc Radiat Med ; 3(2): 91-4, 2002.
Article in English | MEDLINE | ID: mdl-12699838

ABSTRACT

PURPOSE: The aim of the investigation is to study myocardial injury on pig model with two objectives: (1) feasibility of stimulating angiogenesis with fresh autologous bone marrow; (2) administration of the same fresh autologous bone marrow via coronary sinus with transitory occlusion. METHODS: A controlled study was done in animal model with three phases, in a study group of 12 pigs (bone marrow administration) as well as in control group of 4 pigs (saline administration). Phase 1-production of coronary stenosis and myocardial injury; Phase 2-two weeks later, administration of bone marrow through coronary sinus with 10 min occlusion in the study group and saline solution in the control group. Phase 3-two weeks later, histological staining with hematoxylin-eosin and inmunohistochemical staining with monoclonal antibody for smooth muscle alpha-actin were conducted on both study and control groups. RESULTS: The percentage of angionenesis observed in the study group was 91% and 0% in control group. Counting of positive actin in affected and control areas showed statistically significant differences in relation to both groups: study group (1.37 vs. 0.79) and control group (0.47 vs. 0.51). The percentage of mononuclear immature cells observed in the myocardium in the study group was 25% and in the control group was 0%. There was no increment in the coronary collateral circulation when comparing coronary angiography. CONCLUSIONS: Autologous bone marrow in animal model with experimental myocardial injury enhances angiogenesis, as well as vessels with smooth muscles. The transitory occlusion of the coronary sinus might be an effective way to administer cells as those from the bone marrow.


Subject(s)
Bone Marrow Transplantation , Coronary Stenosis/complications , Coronary Stenosis/therapy , Heart Injuries/etiology , Heart Injuries/therapy , Neovascularization, Physiologic/drug effects , Sinus of Valsalva/drug effects , Transplantation, Autologous , Animals , Cardiac Catheterization , Coronary Circulation/drug effects , Coronary Circulation/physiology , Coronary Stenosis/physiopathology , Disease Models, Animal , Feasibility Studies , Heart Injuries/physiopathology , Neovascularization, Physiologic/physiology , Random Allocation , Sinus of Valsalva/pathology , Sinus of Valsalva/physiopathology , Swine , Time Factors
3.
Arq. bras. med. vet. zootec ; Arq. bras. med. vet. zootec. (Online);51(3): 271-4, jun. 1999. tab
Article in Portuguese | LILACS | ID: lil-260986

ABSTRACT

Avaliou-se o efeito da adiçäo de níveis crescentes de DL-metionina na dieta sobre o desempenho de poedeiras comerciais. Foram utilizadas 960 poedeiras comerciais de linhagem Lohmann, distribuídas em quatro tratamentos, com quatro repetiçöes de 60 aves cada, em um delineamento experimental inteiramente ao acaso. O tratamento A foi como controle, sem adiçäo de DL-metionina, representando 0,29 por cento do aminoácido na raçäo. Para os tratamentos B, C e D as raçöes foram suplementadas com 0,03, 0,05 e 0,07 por cento de metionina, respectivamente, o que representou de 0,32, 0,34 e 0,36 por cento do aminoácido na raçäo. Foram avaliadas as seguintes características: produçäo de ovos (porcentagem), consumo de raçä (g), conversäo alimentar (kg/dz), peso dos ovos (g), massa do ovo (g) e espessura da casca do ovo (mm). Näo houve diferenças significativas (P<0,05) entre as médias para conversäo alimentar e espessura da casca do ovo. Entretanto, para produçäo de ovos, peso dos ovos, massa de ovo e consumo de raçäo, os tratamentos suplementados com metionina apresentaram melhores resultados quando comparados ao tratamento sem suplementaçäo


Subject(s)
Animals , Female , Amino Acids, Sulfur , Diet , Methionine , Poultry
4.
Arq. bras. med. vet. zootec ; Arq. bras. med. vet. zootec. (Online);51(3)jun. 1999.
Article in Portuguese | LILACS-Express | LILACS, VETINDEX | ID: biblio-1462537

ABSTRACT

The aim of this experiment was to evaluate the effects of addition of increasing levels of DL-methionine in diet on the performance of laying hens. Nine hundred and sisty Lohmann laying hens, randomly distributed into four treatments with four replicates were used. The control treatment (A) was not supplemented with DL-methionine and contained 0.29% of total methionine. The treatments B, C and D were supplemented with 0.03, 0.05 and 0.07% of methionine respectively, with total methionine being 0.32, 0.34 and 0.36%. The following characteristics were evaluated: egg production (%), feed intake (g), feed conversion (kg/dz), egg weight (g), egg mass (g/day) and eggshell thickness (mm). There were no differences (P>0.05) in terms of feed conversion and eggshell thickness among treatments. The treatments B, C and D produced better egg production, feed intake, egg mass and egg weight as compared to treatment A.


Avaliou-se o efeito da adição de níveis crescentes de DL-metionina na dieta sobre o desempenho de poedeiras comerciais. Foram utilizadas 960 poedeiras comerciais de linhagem Lohmann, distribuídas em quatro tratamentos, com quatro repetições de 60 aves cada, em um delineamento experimental inteiramente ao acaso. O tratamento A foi utilizado como controle, sem adição de DL-metionina, representando 0,29% do aminoácido na ração. Para os tratamentos B, C e D as rações foram suplementadas com 0,03, 0,05 e 0,07% de metionina, respectivamente, o que representou de 0,32, 0,34 e 0,36% do aminoácido na ração. Foram avaliadas as seguintes características: produção de ovos (%), consumo de ração (g), conversão alimentar (kg/dz), peso dos ovos (g), massa de ovo (g) e espessura da casca do ovo (mm). Não houve diferenças significativas (P 0,05) entre as médias para conversão alimentar e espessura da casca do ovo. Entretanto, para produção de ovos, peso dos ovos, massa de ovo e consumo de ração, os tratamentos suplementados com metionina apresentaram melhores resultados quando comparados ao tratamento sem suplementação.

5.
Article in Portuguese | VETINDEX | ID: vti-447528

ABSTRACT

The aim of this experiment was to evaluate the effects of addition of increasing levels of DL-methionine in diet on the performance of laying hens. Nine hundred and sisty Lohmann laying hens, randomly distributed into four treatments with four replicates were used. The control treatment (A) was not supplemented with DL-methionine and contained 0.29% of total methionine. The treatments B, C and D were supplemented with 0.03, 0.05 and 0.07% of methionine respectively, with total methionine being 0.32, 0.34 and 0.36%. The following characteristics were evaluated: egg production (%), feed intake (g), feed conversion (kg/dz), egg weight (g), egg mass (g/day) and eggshell thickness (mm). There were no differences (P>0.05) in terms of feed conversion and eggshell thickness among treatments. The treatments B, C and D produced better egg production, feed intake, egg mass and egg weight as compared to treatment A.


Avaliou-se o efeito da adição de níveis crescentes de DL-metionina na dieta sobre o desempenho de poedeiras comerciais. Foram utilizadas 960 poedeiras comerciais de linhagem Lohmann, distribuídas em quatro tratamentos, com quatro repetições de 60 aves cada, em um delineamento experimental inteiramente ao acaso. O tratamento A foi utilizado como controle, sem adição de DL-metionina, representando 0,29% do aminoácido na ração. Para os tratamentos B, C e D as rações foram suplementadas com 0,03, 0,05 e 0,07% de metionina, respectivamente, o que representou de 0,32, 0,34 e 0,36% do aminoácido na ração. Foram avaliadas as seguintes características: produção de ovos (%), consumo de ração (g), conversão alimentar (kg/dz), peso dos ovos (g), massa de ovo (g) e espessura da casca do ovo (mm). Não houve diferenças significativas (P 0,05) entre as médias para conversão alimentar e espessura da casca do ovo. Entretanto, para produção de ovos, peso dos ovos, massa de ovo e consumo de ração, os tratamentos suplementados com metionina apresentaram melhores resultados quando comparados ao tratamento sem suplementação.

6.
Rev. neurol. argent ; 18(1): 28, 1993. ilus
Article in Spanish | BINACIS | ID: bin-25016
7.
Rev. neurol. Argent ; 18(1): 28, 1993. ilus
Article in Spanish | LILACS | ID: lil-129887
8.
Medicina (B Aires) ; 49(4): 293-303, 1989.
Article in English | MEDLINE | ID: mdl-2487736

ABSTRACT

We describe 10 neuropathologically verified patients with Creutzfeldt-Jakob disease who died in Argentina between 1980 and 1987. Two of the ten cases were Chilean by birth. Another case visited Chile several times. Two cases (one Argentinian and one Chilean) regularly consumed sheep brain. Ages ranged from 42 to 63 years and the male to female ratio was 7:3. Disease duration ranged from 3.5 to 24 months. Prodromal symptoms presented as behavioral changes in 5 patients, lasting from one year to several weeks, and as neurological impairment in the other 5. Patients developed pyramidal, extrapyramidal and cerebellar disturbances, as well as movement disorders and progressive dementia. Visual alterations were found in 5 cases and periodic EEG activity in 7. Unequivocal cortical spongiform changes, together with varying degrees of neuronal depletion and astroglial hyperplasia were constant findings. No white matter involvement was apparent either from CT brain scans or on histopathological study of biopsied and autopsied material. Increasing awareness of this disease as well as possibilities of transmission is necessary in order to provide better information on its true incidence in Argentina.


Subject(s)
Cerebral Cortex/pathology , Creutzfeldt-Jakob Syndrome/pathology , Adult , Cerebral Cortex/ultrastructure , Creutzfeldt-Jakob Syndrome/complications , Creutzfeldt-Jakob Syndrome/etiology , Female , Humans , Male , Middle Aged
9.
Medicina (B.Aires) ; Medicina (B.Aires);49(4): 293-303, 1989. ilus
Article in English | LILACS | ID: lil-86877

ABSTRACT

Enfermedad de Creutzfeldt-Jakob. Comunicación de 10 casos en Argentina con verificación neuropatológica. La incidencia mundial de la enfermedad de Creutzfeldt-Jakob (CJ) es dealrededor de un caso por millón de población por año. A pesar de nuestra proximidad con Chile, donde la incidencia es alta, las comunicaciones en nuestro medio alcanzan a 9 casos desde 1945 a 1980. Se presenta una serie de 10 casos de CJ con confirmación neuropatológica por biopsia cerebral y/o autopsia, nueve de ellos estudiados a partir de la creación de un Centro Neuropatológico Nacional de Referencia de Enfermedades por "virus lentos". El rango de edad de los pacientes fue de 42 a 63 años, correspondiendo la mitad de los casos a la 6ta. década. La distribución por sexo fue de 3 mujeres y 7 varones. La duración de la enfermedad fue de 3,5 a 24 meses, con una media de 10,4 meses. Todos los casos fueron esporádicos (el caso 2 tenía antecendentes neurológicos paternos poco claros). Ocho de los diez pacientes eran argentinos, los otros dos eran chilenos de nacimiento, que emigraron a la Argentina 26 años previos al comienzo de los síntomas (caso 9) y 6 meses antes de su fallecimiento (caso6). El caso 7 visitó Chile periódicamente. De los 8 argentinos, 5 eran residentes de Buenos Aires, Capital, y 3 de Córdoba, Rosario y Mar del Plata. Los casos 6 y 9 presentaban como antecendente de interés la ingestión, con relativa frecuencia, de cerebro de oveja. Los síntomas prodrómicos consistieron esencialmente en trastornos...


Subject(s)
Humans , Adult , Middle Aged , Male , Female , Cerebral Cortex/pathology , Creutzfeldt-Jakob Syndrome/pathology , Cerebral Cortex/ultrastructure , Creutzfeldt-Jakob Syndrome/etiology
10.
Medicina (B.Aires) ; 49(4): 293-303, 1989.
Article in English | BINACIS | ID: bin-51816

ABSTRACT

We describe 10 neuropathologically verified patients with Creutzfeldt-Jakob disease who died in Argentina between 1980 and 1987. Two of the ten cases were Chilean by birth. Another case visited Chile several times. Two cases (one Argentinian and one Chilean) regularly consumed sheep brain. Ages ranged from 42 to 63 years and the male to female ratio was 7:3. Disease duration ranged from 3.5 to 24 months. Prodromal symptoms presented as behavioral changes in 5 patients, lasting from one year to several weeks, and as neurological impairment in the other 5. Patients developed pyramidal, extrapyramidal and cerebellar disturbances, as well as movement disorders and progressive dementia. Visual alterations were found in 5 cases and periodic EEG activity in 7. Unequivocal cortical spongiform changes, together with varying degrees of neuronal depletion and astroglial hyperplasia were constant findings. No white matter involvement was apparent either from CT brain scans or on histopathological study of biopsied and autopsied material. Increasing awareness of this disease as well as possibilities of transmission is necessary in order to provide better information on its true incidence in Argentina.

11.
Medicina [B.Aires] ; 49(4): 293-303, 1989. ilus
Article in English | BINACIS | ID: bin-28072

ABSTRACT

Enfermedad de Creutzfeldt-Jakob. Comunicación de 10 casos en Argentina con verificación neuropatológica. La incidencia mundial de la enfermedad de Creutzfeldt-Jakob (CJ) es dealrededor de un caso por millón de población por año. A pesar de nuestra proximidad con Chile, donde la incidencia es alta, las comunicaciones en nuestro medio alcanzan a 9 casos desde 1945 a 1980. Se presenta una serie de 10 casos de CJ con confirmación neuropatológica por biopsia cerebral y/o autopsia, nueve de ellos estudiados a partir de la creación de un Centro Neuropatológico Nacional de Referencia de Enfermedades por "virus lentos". El rango de edad de los pacientes fue de 42 a 63 años, correspondiendo la mitad de los casos a la 6ta. década. La distribución por sexo fue de 3 mujeres y 7 varones. La duración de la enfermedad fue de 3,5 a 24 meses, con una media de 10,4 meses. Todos los casos fueron esporádicos (el caso 2 tenía antecendentes neurológicos paternos poco claros). Ocho de los diez pacientes eran argentinos, los otros dos eran chilenos de nacimiento, que emigraron a la Argentina 26 años previos al comienzo de los síntomas (caso 9) y 6 meses antes de su fallecimiento (caso6). El caso 7 visitó Chile periódicamente. De los 8 argentinos, 5 eran residentes de Buenos Aires, Capital, y 3 de Córdoba, Rosario y Mar del Plata. Los casos 6 y 9 presentaban como antecendente de interés la ingestión, con relativa frecuencia, de cerebro de oveja. Los síntomas prodrómicos consistieron esencialmente en trastornos... (AU)


Subject(s)
Humans , Adult , Middle Aged , Male , Female , Creutzfeldt-Jakob Syndrome/pathology , Cerebral Cortex/pathology , Creutzfeldt-Jakob Syndrome/etiology , Cerebral Cortex/ultrastructure
15.
Hypertension ; 3(6 Pt 2): II-238-41, 1981.
Article in English | MEDLINE | ID: mdl-7298140

ABSTRACT

Two blood pressure (BP) measurements separated by 3 months were performed according to international guidelines on 2976 students (11 to 19 years) of different economic levels. Obesity was defined based upon height and weight. With the first measurements, 59th and 95th percentile value distribution curves were defined. Systolic hypertension (SH) was found in 9.5%; 10.2% were males and 8.9% females. The sample showed that 8.1% were obese (240 cases); among them the incidence of SH increased to 28.8% (69 cases) (p less than 0.01). In the entire sample, diastolic hypertension (DH) was 4.3%; males, 2.7%, and females, 5.5% (p less than 0.01). Among obese students, DH increased to 8.3% (20 cases) (p less than 0.01), and showed prevalence figures of 5.8% for obese males and 10.3% (14 cases) for obese females. After a second measurement, DH for the sample decreased to 1.8%. Salt intake and familial antecedents of high BP showed differences between hypertensive and normal populations.


Subject(s)
Blood Pressure , School Health Services , Urban Population , Adolescent , Adult , Child , Chile , Diastole , Female , Humans , Hypertension/epidemiology , Hypertension/genetics , Male , Risk , Sex Factors , Systole
17.
Rev. chil. pediatr ; 52(6): 467-70, 1981.
Article in Spanish | LILACS | ID: lil-5294

ABSTRACT

Con una determinacion individual de presion arterial obtenida de 3.442 escolares chilenos urbanos entre 6 y 19 anos se construyeron curvas de distribucion por percentiles para cada edad y sexo. Las mediciones se efectuaron durante 1979 y 1980 siguiendo las recomendaciones de la American Task Force on Blood Pressure Control in Children de EE.UU.Solo en 34.5% de los estudiantes tenian determinaciones previas de presion arterial.Los valores nacionales se comparan con los de EE.UU. y se destacan las diferencias. Al mismo tiempo se discute la confiabilidad de la cifra 140/90 mm Hg. como valor limite de la normotension. Este primer intento nacional para establecer los limites normales de la presion arterial se ofrece para su prueba en la practica pediatrica cotidiana y para facilitar la interpretacion de los valores obtenidos


Subject(s)
Arterial Pressure , Urban Health
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