Effects of dietary creatine supplementation on kidney and striated skeletal muscles of rats submitted to ischemia and reperfusion of hind limbs.

PURPOSE: To evaluate the effect of creatine supplementation in the diet of rats subjected to ischemia and reperfusion of hind limbs. METHODS: Eighteen male Wistar rats were randomized to receive dietary creatine supplementation (G1) or no supplementation (G2), before being subjected to 4 h of ischemia followed by 4 h of reperfusion. In addition, 10 rats (G3) underwent the same surgical procedure, without ischemia, but with supplementation. After reperfusion, kidney and musculature were evaluated for histological damage and serum levels of alanine aminotransferase, urea and creatinine were obtained. RESULTS: The urea dosage showed significant differences between the groups (averages G1 = 155.1; G2 = 211.27; G3 = 160.42). Histological analysis found significant differences between G1 and G2 (but not between G1 and G3) in renal myoglobin cylinders and vacuolar degeneration variables and in hypereosinophilia and karyopyknosis variables in muscle fibers. There were no significant differences in the other variables studied. CONCLUSIONS: Creatine supplementation was related to fewer histological lesions, as well as lower levels of plasma urea, which may suggest a protective effect against lesions caused by ischemia and reperfusion of posterior paws muscles in Wistar rats.

Nursing diagnoses of patients with kidney disease undergoing hemodialysis: a cross-sectional study.

OBJECTIVE: to identify Nursing Diagnoses of 5th stage chronic kidney disease patients undergoing hemodialysis. METHOD: cross-sectional, descriptive and quantitative study carried out with 151 patients undergoing hemodialysis in a clinic specialized in nephrology from the Northwest of the Paraná State. Nursing Diagnoses were determined through Nanda-I in which had the percentage greater than 50%. The analysis used was the simple statistics. RESULTS: 17 Nursing Diagnoses were identified, emphasizing the risks present in 100% of patients: risks for electrolyte imbalance; ineffective kidney perfusion; infection: vascular injuries, adverse response to the iodine-based contrast-enhanced and impaired urinary elimination. CONCLUSION: the main diagnoses listed reflect the more frequent risks that patients undergoing hemodialysis are exposed to. Being aware of these risks allows the nursing planning with early interventions, in order to prevent complications related to the disease and to promote best life conditions.

Nursing diagnoses of patients with kidney disease undergoing hemodialysis: a cross-sectional study / Diagnósticos de enfermería de portadores de enfermedad renal en hemodiálisis: un estudio transversal / Diagnósticos de enfermagem de portadores de doença renal em hemodiálise: estudo transversal

ABSTRACT Objective: to identify Nursing Diagnoses of 5th stage chronic kidney disease patients undergoing hemodialysis. Method: cross-sectional, descriptive and quantitative study carried out with 151 patients undergoing hemodialysis in a clinic specialized in nephrology from the Northwest of the Paraná State. Nursing Diagnoses were determined through Nanda-I in which had the percentage greater than 50%. The analysis used was the simple statistics. Results: 17 Nursing Diagnoses were identified, emphasizing the risks present in 100% of patients: risks for electrolyte imbalance; ineffective kidney perfusion; infection: vascular injuries, adverse response to the iodine-based contrast-enhanced and impaired urinary elimination. Conclusion: the main diagnoses listed reflect the more frequent risks that patients undergoing hemodialysis are exposed to. Being aware of these risks allows the nursing planning with early interventions, in order to prevent complications related to the disease and to promote best life conditions.

RESUMEN Objetivo: identificar los Diagnósticos de Enfermería de portadores de enfermedad renal crónica en estadio 5 hemodialítico. Método: estudio transversal, descriptivo, de abordaje cuantitativo, realizado con 151 individuos en hemodiálisis de una clínica especializada en nefrología en la región Noroeste de Paraná. Se determinaron los Diagnósticos de Enfermería por medio de la Nanda-I que obtuvieron el porcentaje más alta al 50%. El análisis utilizado fue la estadística simple. Resultados: se identificaron 17 Diagnósticos de Enfermería, con destaques para los de riesgos presentes en el 100% de los individuos: riesgos de desequilibrio electrolítico; perfusión renal ineficaz; infección: trauma vascular y respuesta adversa al medio de contraste con yodo y el de eliminación urinaria perjudicada. Conclusión: los principales diagnósticos enumerados reflejan los riesgos más frecuentes a los cuales están expuestos los pacientes en hemodiálisis. El conocimiento de estos riesgos permite la planificación de enfermería con intervenciones tempranas, con miras a la prevención de complicaciones relacionadas con la enfermedad y promoción de mejores condiciones de vida.

RESUMO Objetivo: identificar os Diagnósticos de Enfermagem de portadores de doença renal crônica em estádio 5 hemodialítico. Método: estudo transversal, descritivo, de abordagem quantitativa, realizado com 151 indivíduos em hemodiálise de uma clínica especializada em nefrologia na região Noroeste do Paraná. Foram determinados os Diagnósticos de Enfermagem por meio da Nanda-I que obtiveram o porcentual maior que 50%. A análise utilizada foi a estatística simples. Resultados: foram identificados 17 Diagnósticos de Enfermagem, com destaques para os de riscos presentes em 100% dos indivíduos: riscos de desequilíbrio eletrolítico; perfusão renal ineficaz; infecção: trauma vascular e resposta adversa ao meio de contraste com iodo e o de eliminação urinária prejudicada. Conclusão: os principais diagnósticos elencados refletem os riscos mais frequentes aos quais os pacientes em hemodiálise estão expostos. O conhecimento desses riscos permite o planejamento de enfermagem com intervenções precoces, com vistas à prevenção de complicações relacionadas à doença e promoção de melhores condições de vida.

Acessibilidade ao tratamento e estado de saúde de pacientes hemodialíticos / Accessibility to treatment and health status of hemodialytic patients

Objetivo: identificar a acessibilidade ao tratamento e o estado de saúde de pacientes em hemodiálise. Método: estudo quantitativo, transversal, descritivo, realizado em uma clínica de nefrologia. Os dados foram coletados por meio de entrevista, analisados utilizando estatística descritiva e apresentados em tabelas de distribuição de frequência absoluta e relativa. Resultados: dos 151 pacientes, 49,6% são idosos; 54,3% têm baixa escolaridade; 66,2% possuem renda mensal de até dois salários mínimos; 93,4% têm seu tratamento financiando pelo Sistema Único de Saúde, porém, 45,7% referem gastos com tratamento; 66,9% mencionam a inobservância de tratamento conservador; 84,1% receberam cuidados pré-diálise; 84,1% declaram a autopercepção de saúde como boa e metade deles é acompanhada pela atenção primária à saúde (50,3%). Conclusão: necessita-se do fortalecimento da rede de apoio social e de atenção à saúde, uma vez que a condição de vulnerabilidade caracterizada elucida novos desafios no desenvolvimento de ações na promoção à saúde, prevenção de complicações e na acessibilidade e organização do fluxo de atendimento.(AU)

Effects of vardenafil on the kidney of Wistar rats submitted to acute ischemia and reperfusion.

PURPOSE: To investigate the effect of vardenafil in kidney of rats submitted to acute ischemia and reperfusion. METHODS: Twenty-eight rats were randomly distributed into two groups. Right nephrectomy was performed and the vardenafil group received vardenafil solution (at a concentration of 1 mg/ml in 10 mg/kg) while the control group received 0.9% saline solution (SS) one hour prior to the ligature of the left renal pedicle. After one hour of ischemia, animals were submitted to twenty-four hours of reperfusion, followed by left nephrectomy. The kidney's histological parameters evaluated on the study included vacuolar degeneration and tubular necrosis. Apoptosis was assessed by immunohistochemistry for cleaved caspase-3 using the point-counting and digital methods (Cytophotometry). Also, a biochemical analysis for creatinine was conducted. RESULTS: There were statistically significant differences between groups only with regards to the vacuolar degeneration parameter and to the cleaved caspase-3 digital method. CONCLUSION: Vardenafil showed a protective effect on the kidney of rats subjected to acute ischemia and reperfusion in this model.

Effects of vardenafil on the kidney of Wistar rats submitted to acute ischemia and reperfusion

PURPOSE: To investigate the effect of vardenafil in kidney of rats submitted to acute ischemia and reperfusion. METHODS: Twenty-eight rats were randomly distributed into two groups. Right nephrectomy was performed and the vardenafil group received vardenafil solution (at a concentration of 1 mg/ml in 10 mg/kg) while the control group received 0.9% saline solution (SS) one hour prior to the ligature of the left renal pedicle. After one hour of ischemia, animals were submitted to twenty-four hours of reperfusion, followed by left nephrectomy. The kidney's histological parameters evaluated on the study included vacuolar degeneration and tubular necrosis. Apoptosis was assessed by immunohistochemistry for cleaved caspase-3 using the point-counting and digital methods (Cytophotometry). Also, a biochemical analysis for creatinine was conducted. RESULTS: There were statistically significant differences between groups only with regards to the vacuolar degeneration parameter and to the cleaved caspase-3 digital method. CONCLUSION: Vardenafil showed a protective effect on the kidney of rats subjected to acute ischemia and reperfusion in this model .

Biochemical study of the effects of cilostazol in rats subjected to acute ischemia and reperfusion of hind limbs.

PURPOSE: To investigate whether cilostazol has a protective effect on acute ischemia and reperfusion of hind limbs of rats through study of biochemical variables in blood and urine. METHODS: Forty six animals were randomized and divided into two groups. Group I received a solution of cilostazol (10 mg/Kg) and group II received saline solution 0.9% (SS) by orogastric tube after ligature of the abdominal aorta. After four hours of ischemia the animals were divided into four subgroups: group IA (Cilostazol): two hours of reperfusion. Group IIA (SS): two hours of reperfusion. Group IB (Cilostazol): six hours of reperfusion. Group IIB (SS) six hours of reperfusion. After the reperfusion period, was held to collect urine and blood for biochemical measurements. The biochemical parameters studied were: urea, creatinine, sodium, potassium and myoglobin in blood and urea, creatinine, myoglobin in urine. RESULTS: There was no statistically significant difference between groups. CONCLUSION: Cilostazol had no protective effect on ischemic acute reperfusion of hind limbs of rats in this model.

Biochemical study of the effects of cilostazol in rats subjected to acute ischemia and reperfusion of hind limbs

PURPOSE: To investigate whether cilostazol has a protective effect on acute ischemia and reperfusion of hind limbs of rats through study of biochemical variables in blood and urine. METHODS: Forty six animals were randomized and divided into two groups. Group I received a solution of cilostazol (10 mg/Kg) and group II received saline solution 0.9% (SS) by orogastric tube after ligature of the abdominal aorta. After four hours of ischemia the animals were divided into four subgroups: group IA (Cilostazol): two hours of reperfusion. Group IIA (SS): two hours of reperfusion. Group IB (Cilostazol): six hours of reperfusion. Group IIB (SS) six hours of reperfusion. After the reperfusion period, was held to collect urine and blood for biochemical measurements. The biochemical parameters studied were: urea, creatinine, sodium, potassium and myoglobin in blood and urea, creatinine, myoglobin in urine. RESULTS: There was no statistically significant difference between groups. CONCLUSION: Cilostazol had no protective effect on ischemic acute reperfusion of hind limbs of rats in this model.

Effects of cilostazol in kidney and skeletal striated muscle of Wistar rats submitted to acute ischemia and reperfusion of hind limbs.

PURPOSE: To investigate the effect of cilostazol, in kidney and skeletal muscle of rats submitted to acute ischemia and reperfusion. METHODS: Fourty three animals were randomized and divided into two groups. Group I received a solution of cilostazol (10 mg/Kg) and group II received saline solution 0.9% (SS) by orogastric tube after ligature of the abdominal aorta. After four hours of ischemia the animals were divided into four subgroups: group IA (Cilostazol): two hours of reperfusion. Group IIA (SS): two hours of reperfusion. Group IB (Cilostazol): six hours of reperfusion. Group IIB (SS) six hours of reperfusion. After reperfusion, a left nephrectomy was performed and removal of the muscles of the hind limb. The histological parameters were studied. In kidney cylinders of myoglobin, vacuolar degeneration and acute tubular necrosis. In muscle interstitial edema, inflammatory infiltrate, hypereosinophilia fiber, cariopicnose and necrosis. Apoptosis was assessed by immunohistochemistry for cleaved caspase-3 and TUNEL. RESULTS: There was no statistically significant difference between groups. CONCLUSION: Cilostazol had no protective effect on the kidney and the skeletal striated muscle in rats submitted to acute ischemia and reperfusion in this model.

Effects of cilostazol in kidney and skeletal striated muscle of Wistar rats submitted to acute ischemia and reperfusion of hind limbs / Efeitos do cilostazol em rim e musculatura estriada esquelética de ratos Wistar submetidos à isquemia aguda e reperfusão de membros posteriores

PURPOSE: To investigate the effect of cilostazol, in kidney and skeletal muscle of rats submitted to acute ischemia and reperfusion. METHODS: Fourty three animals were randomized and divided into two groups. Group I received a solution of cilostazol (10 mg/Kg) and group II received saline solution 0.9% (SS) by orogastric tube after ligature of the abdominal aorta. After four hours of ischemia the animals were divided into four subgroups: group IA (Cilostazol): two hours of reperfusion. Group IIA (SS): two hours of reperfusion. Group IB (Cilostazol): six hours of reperfusion. Group IIB (SS) six hours of reperfusion. After reperfusion, a left nephrectomy was performed and removal of the muscles of the hind limb. The histological parameters were studied. In kidney cylinders of myoglobin, vacuolar degeneration and acute tubular necrosis. In muscle interstitial edema, inflammatory infiltrate, hypereosinophilia fiber, cariopicnose and necrosis. Apoptosis was assessed by immunohistochemistry for cleaved caspase-3 and TUNEL. RESULTS: There was no statistically significant difference between groups. CONCLUSION: Cilostazol had no protective effect on the kidney and the skeletal striated muscle in rats submitted to acute ischemia and reperfusion in this model.

OBJETIVO: Investigar o efeito do cilostazol no rim e na musculatura esquelética de ratos submetidos à isquemia aguda e reperfusão. MÉTODOS: Quarenta e três animais foram aleatoriamente distribuídos em dois grupos. Grupo I recebeu solução de cilostazol (10 mg/Kg) e Grupo II recebeu solução fisiológica a 0,9% (SF), após ligadura da aorta abdominal. Decorridas quatro horas de isquemia os animais foram distribuídos em quatro subgrupos: Grupo IA (Cilostazol): duas horas de reperfusão. Grupo IIA (SF): duas horas de reperfusão. Grupo IB (Cilostazol): seis horas de reperfusão. Grupo IIB (SF): seis horas de reperfusão. Após a reperfusão, realizou-se nefrectomia esquerda e a retirada da musculatura de membro posterior. Os parâmetros histológicos estudados em rim foram cilindros de mioglobina, degeneração vacuolar e necrose tubular. Em músculo foram edema, infiltrado inflamatório, hipereosinofilia de fibras, cariopicnose e necrose. A apoptose foi avaliada por imunohistoquímica, através da caspase-3 clivada e TUNEL. RESULTADOS: Não houve diferença estatisticamente significante entre os grupos estudados. CONCLUSÃO: O cilostazol não teve efeito protetor sobre o rim e sobre a musculatura estriada esquelética em ratos Wistar submetidos à isquemia aguda e reperfusão no modelo estudado.

[Oxidative alterations, total antioxidant status and nitric oxide study in rats submitted to ischemia and reperfusion of hind limbs]. / Estudo das alterações oxidativas, da capacidade antioxidante total e do óxido nítrico, em ratos submetidos à isquemia e reperfusão de membros posteriores.

PURPOSE: To verify the effect of the ischemia time on the oxidative alterations, total antioxidant status and the nitric oxide, in the muscle, kidney and plasma, in rats submitted to ischemia and reperfusion of hind limbs. METHODS: Forty male rats were randomized in four groups with ten animals each. Laparotomy, abdominal aorta infra ejuxta renal isolation. Groups 1 and 3 (sham), passage of the polipropilen 7.0 monofilamentary thread aorta around without bending it and waiting time of 1 hour to group 1 and 6 hours to group 3. Withdrawal of the thread, waiting time of 15 minutes, euthanasia and material collection. Groups 2 and 4 (experiments), ligation of abdominal aorta with the same thread and ischemia of 1 hour in the group 2 and 6 hours to the group 4. Withdrawal of the thread and reperfusion for 15 minutes. Euthanasia and blood collection by flowing; withdrawal of the left hind limb muscle and of the left kidney. The parameters evaluated were: malondialdehyde, total antioxidant status and the nitric oxide. RESULTS: The "T" Student test and the MANN-WHITNEY test have been used as nonparametrics tests and the rejection level have been fixed in 0.05 or 5%. There were significative alterations of the malondialdehyde in the kidney. The total antioxidant status has been shoun significative alterations in the kidney, muscle and plasma. Although the nitric oxide has been altered in the plasma only. CONCLUSION: The ischemia time changing has provoked significative alterations of malondialdehyde, total antioxidant status and nitric oxide.

Estudo das alterações oxidativas, da capacidade antioxidante total e do óxido nítrico, em ratos submetidos à isquemia e reperfusão de membros posteriores / Oxidatives alterations, total antioxidant status and nitric oxide study in rats submitted to ischemia and reperfusion of hind limbs

OBJETIVO: Verificar o efeito do tempo de isquemia sobre as alterações oxidativas, a capacidade antioxidante total e o óxido nítrico, no músculo, no rim e no plasma de ratos submetidos à isquemia e reperfusão de membros posteriores. MÉTODOS: 40 ratos machos foram distribuídos aleatóriamente em quatro grupos experimentais com 10 animais cada. Laparotomia, isolamento da aorta abdominal infra e justa renal. Grupos 1 e 3 (simulados) passagem do fio monofilamentar de polipropileno 7-0 ao redor da aorta sem liga-la e espera de 1 hora para o grupo 1 e de 6 horas para o grupo 3. Retirada do fio, espera de 15 minutos, eutanásia e colheita do material. Grupos 2 e 4 (experimentos), ligadura da aorta abdominal com o mesmo fio e isquemia de 1 hora no grupo 2 e de 6 horas no grupo 4. Retirada do fio e reperfusão por 15 minutos. Eutanásia e colheita de sangue por escoamento, músculo da pata posterior esquerda e rim esquerdo. Os parâmetros verificados foram: malondialdeído, capacidade antioxidante total e óxido nítrico. RESULTADOS: Utilizou-se o teste "t"de Student e o teste de MANN-WHITNEY como testes não paramétricos e fixou-se em 0,05 ou 5 por cento o nível de rejeição. Houve alterações estatísticamente significantes do malondialdeído no rim. A capacidade antioxidante total apresentou alterações significantes no rim, no músculo e no plasma enquanto que, o óxido nítrico, alterou apenas no plasma. CONCLUSÃO: A variação do tempo de isquemia provocou alterações significantes do malondialdeído, da capacidade antioxidante total e do óxido nítrico.