Foi realizado um estudo prospectivo em dez crianças (média de idade de apresentação da doença, 3.0 ± 1.6 anos) usando ciclosporina (CSA) uma microemulsão utilizada no tratamento da síndrome nefrótica idiopática (SNI) - com função renal normal avaliada pelo clearance de creatinina estimado pela estatura, que apresentavam o C0 (nível do vale) entre 50 e 150 ng/ml e que encontraram remissão completa da doença com a CSA. O objetivo foi comparar os parâmetros farmacocinéticos da CSA entre crianças com SNI em remissão ou descompensadas da doença. O perfil farmacocinético da CSA foi avaliado através da área sob a curva de 12 horas (AUC012) utilizando sete pontos. Esse procedimento foi realizado no mesmo paciente durante a remissão e a descompensação da doença com a mesma dose de CSA em mg/kg. A AUC012 foi calculada através de régua trapezoidal. Todos os pontos da curva e a AUC04 simplificada foram comparados com a AUC012. Não foi encontrada diferença significativa em quaisquer pontos da curva nos dois estados da doença, nem mesmo quando normalizados pela dose em mg/kg. Nosso estudo mostrou que a AUC04 foi o principal parâmetro em ambos os estados da doença (remissão e recidiva) quando comparado com a AUC012 (r=0.95 na remissão e r=0.93 na recidiva), e o segundo melhor parâmetro foi o C2 (r=0.86 na remissão e r=0.80 na recidiva). Mais estudos controlados são necessários para reproduzir melhor estes achados e confirmar nossa proposta. Além disso, o C2 necessita ser determinado em crianças com SNI para evitar efeitos adversos enquanto promove eficiência / We report a prospective study in ten children (mean age at presentation, 3.0 ± 1.6 years) using Cyclosporin(CSA) - a microemulsion to treat Idiopathic Nephrotic Syndrome (INS), with normal renal function evaluated by creatinine clearance estimated by stature, who presented C0 (trough level) between 50 and 150 ng/ml and achieved complete remission with CSA. The objective is to compare the pharmacokinetic parameters of CSA between nephrotic children on remission and relapse of the nephrotic state. The pharmacokinetic profile of CSA was evaluated with the 12-hour area under the time-concentration curve (AUC012) using seven time sample points. This procedure was done in the same patient during remission and relapse with the same dose of CSA (mg/kg). The AUC012 was calculated by trapezoidal rule. All points of the curve and the resumed AUC04 were compared with AUC012. We detected no significant differences at any points of the curve during remission and relapse, even when data were normalized by dose (mg/kg). Our study has shown that AUC04 was the main point on both states of the disease, remission and relapse, when compared to AUC012 (r=0.95 on remission and r=0.93 on relapse), and the second parameter found was C2 (r=0.86 on remission and r=0.80 on relapse). More controlled studies are needed to reproduce the findings and confirm this proposition. The target C2 concentration needs to be determined for INS in children to avoid adverse effects while promoting efficacy

Foi realizado um estudo prospectivo em dez crianças (média de idade de apresentação da doença, 3.0 ± 1.6 anos) usando ciclosporina (CSA) uma microemulsão utilizada no tratamento da síndrome nefrótica idiopática (SNI) - com função renal normal avaliada pelo clearance de creatinina estimado pela estatura, que apresentavam o C0 (nível do vale) entre 50 e 150 ng/ml e que encontraram remissão completa da doença com a CSA. O objetivo foi comparar os parâmetros farmacocinéticos da CSA entre crianças com SNI em remissão ou descompensadas da doença. O perfil farmacocinético da CSA foi avaliado através da área sob a curva de 12 horas (AUC012) utilizando sete pontos. Esse procedimento foi realizado no mesmo paciente durante a remissão e a descompensação da doença com a mesma dose de CSA em mg/kg. A AUC012 foi calculada através de régua trapezoidal. Todos os pontos da curva e a AUC04 simplificada foram comparados com a AUC012. Não foi encontrada diferença significativa em quaisquer pontos da curva nos dois estados da doença, nem mesmo quando normalizados pela dose em mg/kg. Nosso estudo mostrou que a AUC04 foi o principal parâmetro em ambos os estados da doença (remissão e recidiva) quando comparado com a AUC012 (r=0.95 na remissão e r=0.93 na recidiva), e o segundo melhor parâmetro foi o C2 (r=0.86 na remissão e r=0.80 na recidiva). Mais estudos controlados são necessários para reproduzir melhor estes achados e confirmar nossa proposta. Além disso, o C2 necessita ser determinado em crianças com SNI para evitar efeitos adversos enquanto promove eficiência / We report a prospective study in ten children (mean age at presentation, 3.0 ± 1.6 years) using Cyclosporin(CSA) - a microemulsion to treat Idiopathic Nephrotic Syndrome (INS), with normal renal function evaluated by creatinine clearance estimated by stature, who presented C0 (trough level) between 50 and 150 ng/ml and achieved complete remission with CSA. The objective is to compare the pharmacokinetic parameters of CSA between nephrotic children on remission and relapse of the nephrotic state. The pharmacokinetic profile of CSA was evaluated with the 12-hour area under the time-concentration curve (AUC012) using seven time sample points. This procedure was done in the same patient during remission and relapse with the same dose of CSA (mg/kg). The AUC012 was calculated by trapezoidal rule. All points of the curve and the resumed AUC04 were compared with AUC012. We detected no significant differences at any points of the curve during remission and relapse, even when data were normalized by dose (mg/kg). Our study has shown that AUC04 was the main point on both states of the disease, remission and relapse, when compared to AUC012 (r=0.95 on remission and r=0.93 on relapse), and the second parameter found was C2 (r=0.86 on remission and r=0.80 on relapse). More controlled studies are needed to reproduce the findings and confirm this proposition. The target C2 concentration needs to be determined for INS in children to avoid adverse effects while promoting efficacy

There are comprehensive accounts of the nephrotic syndrome in childhood in temperate countries. Many of the important features of this disease have been known for close on to two decades. The causal link between malaria and nephrosis in tropical Africa has also been recognised and documented for a similar length of time. Very little was known of the nephrotic syndrome in the sub-tropical zones of Africa where malaria is not endemic. Anecdotal evidence in South Africa suggested that African children with this disease appeared to have steroid resistant nephrosis and a more protracted clinical course than expected from prevailing accounts in the literature and that Indian South African children generally responded to steroids. This thesis is the result of detailed investigations in to this disease in African and Indian children in Durban, South Africa. 2. Preliminary Study A preliminary study was undertaken in which 53 (12 African and 41 Indian) children with the nephrotic syndrome defined by clinical and biochemical criteria 1 ii were studied. Renal biopsies were not available on these patients. The results revealed that two thirds of the African children were over 5 years of age and 50% were males. Of the Indian children 50% were under 5 years of age and 50% were males. Nine African children were treated with steroids and 8 did not respond whereas 31 of the 39 Indian children treated clearly responded to steroid therapy. In addition 5 Indian patients were treated with cyclophosphamide and 3 responded. On follow-up 7 of the African children had persistent proteinuria, 2 experienced remissions and 3 were lost to follow-up. All the Indian patients experienced remissions. The differences between the 2 groups of nephrotic patients were quite striking and therefore a more detailed prospective study of this problem was undertaken. 3. Prospective Study of Primary Nephrotic Syndrome One hundred and seventy children of whom 104 were African and 66 Indian with primary nephrotic syndrome were studied. In both racial groups the male sex dominated, Indian children tended to present iii at a younger age group whereas African children presented at two peak ages, 5 years and between 5 - 10 years. 3.1 Histological Differences The histological types found on light microscopic examination of renal tissue were distinctly different between the African and the Indian children. The majority (85.6%) of the African children had 'obvious' glomerular lesions, the commonest being extramembranous nephropathy (29.8%). Although the proliferative group was the single largest group (40%) none of the subgroups exceeded the extramembranous type in their number. Minimal change accounted for only 14.4% of the African children with nephrotic syndrome. The majority of Indian children (72.7%) had minimal change on light microscopy, 9.1% focal glomerulosclerosis and 12.1% had proliferative changes. 3.2 Immunofluorescence Immunofluorescent studies also indicated differences between the two groups of patients. Generally, heavier deposits of immunoglobulins iv and complement components were identified on renal biopsy specimens of African children. This occurred even in MCNS where most African children had heavy IgG, light IgM, IgA and complement components whereas only a few of the Indian children had light IgM deposits. Similar differences were observed in diffuse mesangial proliferative glomerulonephritis and focal glomerulosclerosis where the numbers of patients were comparable. 3.3 Presenting Features Clinical features at presentation in the two groups were different, as expected from the nature of the histological findings in each group. In the African children (all histological groups) haematuria occurred in 35.5%, hypertension 16.3% and renal failure in 2.9%. The clinical features in the Indian children were not too different from MCNS elsewhere. Haematuria occurred in a small percentage (3%) of MCNS but was more frequent (10.7%) in other groups. Hypertension and renal failure occurred infrequently in histological categories other than MCNS where they did not occur at all. 3.4 Course and Outcome In view of the above it was not unexpected to find that the clinical course and outcome in the two groups were quite dissimilar. African patients in certain of the histological groups fared reasonably well, but none of the groups had the excellent prognosis of Indian MCNS. 3.4.1 Minimal Change One third of the African MCNS patients remitted and this was unrelated to steroids. The remainder who were followed for a reasonable duration of time remained proteinuric. None developed signs of serious renal impairment (azotaemia, hypertension). Indian MCNS experienced an excellent prognosis with 97.8% achieving remission and 81.6% being steroid sensitive. One third of these patients had a single episode of nephrosis while frequent relapses occurred in 28.2%. 3.4.2 Extramembranous Nephropathy Patients with extramembranous nephropathy, the largest group in the African patients, experienced hypertension more often (20%) vi and remission less often (30%) than do children in temperate climates. The clinical presentation, course and outcome in the majority of these patients were similar to adults with extramembranous nephropathy. 3.4.3 Proliferative Glomerulonephritis The patients in the proliferative group had a variable outcome depending on the subgroup to which they belonged. In diffuse mesangial proliferation, African patients had a higher incidence of hypertension and fewer remissions and fared less well than Indian patients. The diffuse endocapillary glomerulonephritis, membranoproliferative and focal proliferative nephritis groups of patients suffered severe disease with a failure to remit and progression to death. In the diffuse exudative group, remissions occurred or proteinuria persisted but severe relapse and death did not occur. The worst prognosis was in the focal proliferative group with the highest incidence of persistent relapse. 3.4.4 Focal Glomerular Sclerosis Focal glomerular sclerosis was an unusual vii histological diagnosis in the African child (3.9%) with a poorer prognosis (persistent proteinuria or death) when compared to Indian children in whom one third remitted and the rest had persistent proteinuria. 3.4.5 Tropical Nephropathies It is difficult to comment on the course of the tropical nephropathy (not related to malaria) and tropical extramembranous groups as the numbers are small. However, in tropical extramembranous, none remitted (all African children) and in tropical nephropathy one Indian child remitted but one of 2 African children died and the other had persistent proteinuria. 3.5 Response to Therapy Perhaps the most important practical aspect of the nephrotic syndrome in the African child was the response to steroid therapy. Thirty two African children were given steroid therapy. Thirty (93.7%) did not respond. Five children deteriorated or died during steroid therapy. Very few patients (4) were given cyclophosphamide and none responded. viii Generally intravenous albumen, diuretics and a high protein diet were not very effective in those patients with severe, clinical disease but were of benefit in milder disease. Indian children taken as a whole, responded well to steroid therapy. Seventy-eight percent of the whole group responded to steroids and 21.4% developed cushingoid features. Of the 19 Indian children (all MCNS) treated with cyclophosphamide 63.2% responded of whom about a quarter got toxic side effects (alopecia, darkened nails and leucopenia). Chlorambucil therapy in 4 children (all MCNS) was successful in all. 3.6 Complications Serious infections (septicaemia, peritonitis, urinary tract infection, meningitis, arthritis, osteitis, measles, chicken pox) occurred in 8.7% of the African patients. Eighteen percent had less severe infections. Just over a quarter of the Indian children suffered severe infections. The majority of these patients were MCNS and about 50% were on steroids or cyclophosphamide at the ix time of their infection. Renal biopsy complications were minor, these being abdominal pain and tenderness or transient haematuria. A few patients developed renal haematomas which were detected or monitored by ultrasonography. The single serious complication was the development of a renal abscess at the biopsy site requiring partial nephrectomy. 3.7 Mortality The overall mortality was 5.8%. Seven of the 10 deaths were African children in the Proliferative Group and 3 of the 10 deaths were Indian children. 4. Secondary Nephrotic Syndrome The secondary nephrotics formed an interesting group of patients. Of the 22 patients classified as secondary nephrotics 11 (50%) were related to streptococcal infection either as rapidly progressive glomerulonephritis or transient NS following APSGN. HBsAg was detected in the blood of 8.6% of the African patients. However the HB sAg carrier rate in this age group is 7.4%.The incidence in these patients probably reflects the high incidence in this population group. Collagen vascular disease occurred in 2 patients, both Indian. 5. Conclusions and Recommendations The results of this study demonstrates the strikingly different incidences of the various histological categories in the two race groups studied with a less favourable prognosis and fewer remission rates being achieved in African children. Indian children had more serious infections more often than African children. Steroid and immunosuppressive agents were of no value and probably hazardous in the African child. Some patients deteriorated on these drugs. Indian children who had an excellent response to these drugs were however at significant risk of developing serious infections. Why African children in Durban develop obvious glomerular lesions has not been established. Known or possible aetiological agents such as malaria, schistosomiasis, streptococcal infections and collagen diseases have been excluded. The answer to the above question may in fact lie in genetic predisposition,host factors and environmental influences, either singly or in combination, predisposing to the development of obvious x i glomerular lesions. These require more intensive investigation and judging from the yield of similar studies in other areas of the world expectations have to be guarded. / Thesis (M.D.)-University of Natal, 1981.

A albumina humana (AH) é um medicamento de ampla utilização e de custo elevado que integra o elenco de procedimentos especiais do Ministério da Saúde no Brasil. Em 2004, a ANVISA publicou uma resolução que estabelece diretrizes para o uso terapêutico deste medicamento. Apesar dos dados da literatura sugerirem conclusões não definitivas sobre os reais benefícios do uso de albumina no tratamento de pacientes com síndrome nefrótica (SN), a diretriz recomenda o uso nos casos de edemas refratários ao uso de diuréticos. O objetivo deste estudo foi avaliar através de análises econômicas a indicação clinica da diretriz para uso de Albumina Humana da ANVISA, em pacientes com Síndrome Nefrótica. A partir de uma coorte concorrente foram realizadas análises econômicas dos tipos custo-efetividade e custoutilidade. A população do estudo foi constituída por pacientes adultos e pediátricos internados com síndrome nefrótica em quatro grandes hospitais do SUS do Estado da Bahia. Os pacientes incluídos foram divididos em dois grupos comparativos conforme o seguimento ou não das orientações de uso de albumina humana da diretriz da ANVISA. A perspectiva da análise econômica foi sobre o provedor de atenção à saúde, o SUS. Os dados de qualidade de vida dos pacientes foram obtidos através de aplicação dos questionários genéricos SF36 e CHQ-PF50. O índice QALY (anos de vida ajustados à qualidade de vida) foi utilizado para a avaliação de custo-utilidade da comparação. Ao final do estudo foram selecionados 109 pacientes, com 60% de adultos, 56% do gênero feminino, mais de 90% de negros e pardos tendo 41,3% seguido as diretrizes da ANVISA. O custo médio global por internação (média de 22 dias) para o SUS foi de R$ 2.360/paciente. Os parâmetros de efetividade analisados, peso, diurese e balanço hídrico foram mais efetivos em termos de custo para os pacientes que seguiram a diretriz. A RCEI para dias de internação evitados evidenciou um custo adicional de R$55,33/dia evitado. A análise de qualidade de vida demonstrou que seguir a diretriz dominou o não seguimento propiciando um acréscimo de 8% de qualidade de vida e gerando uma economia de R$ 3.458,13 por QALY ganho. As análises de sensibilidade das RCEI e RCUI evidenciaram a robustez dos resultados, principalmente na variação do QALY, que mesmo após 60% de variabilidade garantiu economia para o sistema. Os resultados deste estudo forneceram informações sobre o uso de albumina humana em pacientes com síndrome nefrótica que podem juntamente com outros dados nortear as práticas de saúde no SUS do ponto de vista clinico e econômico. As análises econômicas indicaram que apresentam melhores relações de custo-efetividade e custo utilidade os tratamentos dos pacientes que seguiram as orientações da diretriz da ANVISA. / Human albumin (HA) is a drug widely used and of high cost that integrates the cast of special procedures of the Ministry of Health in Brazil. In 2004, ANVISA issued a resolution establishing guidelines for the therapeutic use of this drug. Although data from the literature suggest no definite conclusions about the real benefits of the use of albumin in the treatment of patients with nephrotic syndrome (NS), the guideline recommends the use in cases of edema refractory to diuretics. The aim of this study was to evaluate economic analyzes through the clinical indication of guideline for use of Human Albumin ANVISA, in patients with nephrotic syndrome. Economic analyzes of both cost-effectiveness and cost-utility types were performed from a concurrent cohort. The study population was composed of adult and pediatric patients hospitalized with nephrotic syndrome in four major public hospitals in the State of Bahia. The included patients were divided into two distinct groups according to whether ANVISA’s guidelines for use of human albumin were followed by them or not. The economic perspective of the analysis regarded the health care provider, the NHS. The quality of life data of the patients were obtained through application of generic questionnaires SF36 and CHQ - PF50. The QALY index (quality-adjusted life year) was used to assess cost-utility comparison. At the end of the study 109 patients were selected, consisting of 60% adults, 56 % females, over 80 % blacks and dark-skinned, where 41.3 % followed the guidelines of ANVISA. The overall average cost per hospitalization (22 days average) to the NHS was R$ 2.360/patient. The analyzed parameters, weight, urine volume, and fluid balance were more effective in terms of cost for patients who followed the guidelines. The ICER for days of hospitalization avoided showed an additional cost of R$55.33/avoided day. The quality of life analysis showed that the majority followed the guidelines providing an increase of 8 % for quality of life and generating savings of R$ 3,458.13 per QALY gained. Sensitivity analyzes of the ICER and ICUR showed the robustness of the results, especially the variation of the QALY, which even after 60% of variability guaranteed savings for the system. The results of this study provided information on the use of human albumin in patients with nephrotic syndrome that can, along with other data, guide health care practices in the NHS from both clinical and financial standpoints. The economic analyzes that show better the costeffectiveness and cost utility of treatment patients who followed the recommendations the guideline of ANVISA.

A albumina humana (AH) é um medicamento de ampla utilização e de custo elevado que integra o elenco de procedimentos especiais do Ministério da Saúde no Brasil. Em 2004, a ANVISA publicou uma resolução que estabelece diretrizes para o uso terapêutico deste medicamento. Apesar dos dados da literatura sugerirem conclusões não definitivas sobre os reais benefícios do uso de albumina no tratamento de pacientes com síndrome nefrótica (SN), a diretriz recomenda o uso nos casos de edemas refratários ao uso de diuréticos. O objetivo deste estudo foi avaliar através de análises econômicas a indicação clinica da diretriz para uso de Albumina Humana da ANVISA, em pacientes com Síndrome Nefrótica. A partir de uma coorte concorrente foram realizadas análises econômicas dos tipos custo-efetividade e custoutilidade. A população do estudo foi constituída por pacientes adultos e pediátricos internados com síndrome nefrótica em quatro grandes hospitais do SUS do Estado da Bahia. Os pacientes incluídos foram divididos em dois grupos comparativos conforme o seguimento ou não das orientações de uso de albumina humana da diretriz da ANVISA. A perspectiva da análise econômica foi sobre o provedor de atenção à saúde, o SUS. Os dados de qualidade de vida dos pacientes foram obtidos através de aplicação dos questionários genéricos SF36 e CHQ-PF50. O índice QALY (anos de vida ajustados à qualidade de vida) foi utilizado para a avaliação de custo-utilidade da comparação. Ao final do estudo foram selecionados 109 pacientes, com 60% de adultos, 56% do gênero feminino, mais de 90% de negros e pardos tendo 41,3% seguido as diretrizes da ANVISA. O custo médio global por internação (média de 22 dias) para o SUS foi de R$ 2.360/paciente. Os parâmetros de efetividade analisados, peso, diurese e balanço hídrico foram mais efetivos em termos de custo para os pacientes que seguiram a diretriz. A RCEI para dias de internação evitados evidenciou um custo adicional de R$55,33/dia evitado. A análise de qualidade de vida demonstrou que seguir a diretriz dominou o não seguimento propiciando um acréscimo de 8% de qualidade de vida e gerando uma economia de R$ 3.458,13 por QALY ganho. As análises de sensibilidade das RCEI e RCUI evidenciaram a robustez dos resultados, principalmente na variação do QALY, que mesmo após 60% de variabilidade garantiu economia para o sistema. Os resultados deste estudo forneceram informações sobre o uso de albumina humana em pacientes com síndrome nefrótica que podem juntamente com outros dados nortear as práticas de saúde no SUS do ponto de vista clinico e econômico. As análises econômicas indicaram que apresentam melhores relações de custo-efetividade e custo utilidade os tratamentos dos pacientes que seguiram as orientações da diretriz da ANVISA. / Human albumin (HA) is a drug widely used and of high cost that integrates the cast of special procedures of the Ministry of Health in Brazil. In 2004, ANVISA issued a resolution establishing guidelines for the therapeutic use of this drug. Although data from the literature suggest no definite conclusions about the real benefits of the use of albumin in the treatment of patients with nephrotic syndrome (NS), the guideline recommends the use in cases of edema refractory to diuretics. The aim of this study was to evaluate economic analyzes through the clinical indication of guideline for use of Human Albumin ANVISA, in patients with nephrotic syndrome. Economic analyzes of both cost-effectiveness and cost-utility types were performed from a concurrent cohort. The study population was composed of adult and pediatric patients hospitalized with nephrotic syndrome in four major public hospitals in the State of Bahia. The included patients were divided into two distinct groups according to whether ANVISA’s guidelines for use of human albumin were followed by them or not. The economic perspective of the analysis regarded the health care provider, the NHS. The quality of life data of the patients were obtained through application of generic questionnaires SF36 and CHQ - PF50. The QALY index (quality-adjusted life year) was used to assess cost-utility comparison. At the end of the study 109 patients were selected, consisting of 60% adults, 56 % females, over 80 % blacks and dark-skinned, where 41.3 % followed the guidelines of ANVISA. The overall average cost per hospitalization (22 days average) to the NHS was R$ 2.360/patient. The analyzed parameters, weight, urine volume, and fluid balance were more effective in terms of cost for patients who followed the guidelines. The ICER for days of hospitalization avoided showed an additional cost of R$55.33/avoided day. The quality of life analysis showed that the majority followed the guidelines providing an increase of 8 % for quality of life and generating savings of R$ 3,458.13 per QALY gained. Sensitivity analyzes of the ICER and ICUR showed the robustness of the results, especially the variation of the QALY, which even after 60% of variability guaranteed savings for the system. The results of this study provided information on the use of human albumin in patients with nephrotic syndrome that can, along with other data, guide health care practices in the NHS from both clinical and financial standpoints. The economic analyzes that show better the costeffectiveness and cost utility of treatment patients who followed the recommendations the guideline of ANVISA.

A albumina humana (AH) é um medicamento de ampla utilização e de custo elevado que integra o elenco de procedimentos especiais do Ministério da Saúde no Brasil. Em 2004, a ANVISA publicou uma resolução que estabelece diretrizes para o uso terapêutico deste medicamento. Apesar dos dados da literatura sugerirem conclusões não definitivas sobre os reais benefícios do uso de albumina no tratamento de pacientes com síndrome nefrótica (SN), a diretriz recomenda o uso nos casos de edemas refratários ao uso de diuréticos. O objetivo deste estudo foi avaliar através de análises econômicas a indicação clinica da diretriz para uso de Albumina Humana da ANVISA, em pacientes com Síndrome Nefrótica. A partir de uma coorte concorrente foram realizadas análises econômicas dos tipos custo-efetividade e custoutilidade. A população do estudo foi constituída por pacientes adultos e pediátricos internados com síndrome nefrótica em quatro grandes hospitais do SUS do Estado da Bahia. Os pacientes incluídos foram divididos em dois grupos comparativos conforme o seguimento ou não das orientações de uso de albumina humana da diretriz da ANVISA. A perspectiva da análise econômica foi sobre o provedor de atenção à saúde, o SUS. Os dados de qualidade de vida dos pacientes foram obtidos através de aplicação dos questionários genéricos SF36 e CHQ-PF50. O índice QALY (anos de vida ajustados à qualidade de vida) foi utilizado para a avaliação de custo-utilidade da comparação. Ao final do estudo foram selecionados 109 pacientes, com 60% de adultos, 56% do gênero feminino, mais de 90% de negros e pardos tendo 41,3% seguido as diretrizes da ANVISA. O custo médio global por internação (média de 22 dias) para o SUS foi de R$ 2.360/paciente. Os parâmetros de efetividade analisados, peso, diurese e balanço hídrico foram mais efetivos em termos de custo para os pacientes que seguiram a diretriz. A RCEI para dias de internação evitados evidenciou um custo adicional de R$55,33/dia evitado. A análise de qualidade de vida demonstrou que seguir a diretriz dominou o não seguimento propiciando um acréscimo de 8% de qualidade de vida e gerando uma economia de R$ 3.458,13 por QALY ganho. As análises de sensibilidade das RCEI e RCUI evidenciaram a robustez dos resultados, principalmente na variação do QALY, que mesmo após 60% de variabilidade garantiu economia para o sistema. Os resultados deste estudo forneceram informações sobre o uso de albumina humana em pacientes com síndrome nefrótica que podem juntamente com outros dados nortear as práticas de saúde no SUS do ponto de vista clinico e econômico. As análises econômicas indicaram que apresentam melhores relações de custo-efetividade e custo utilidade os tratamentos dos pacientes que seguiram as orientações da diretriz da ANVISA. / Human albumin (HA) is a drug widely used and of high cost that integrates the cast of special procedures of the Ministry of Health in Brazil. In 2004, ANVISA issued a resolution establishing guidelines for the therapeutic use of this drug. Although data from the literature suggest no definite conclusions about the real benefits of the use of albumin in the treatment of patients with nephrotic syndrome (NS), the guideline recommends the use in cases of edema refractory to diuretics. The aim of this study was to evaluate economic analyzes through the clinical indication of guideline for use of Human Albumin ANVISA, in patients with nephrotic syndrome. Economic analyzes of both cost-effectiveness and cost-utility types were performed from a concurrent cohort. The study population was composed of adult and pediatric patients hospitalized with nephrotic syndrome in four major public hospitals in the State of Bahia. The included patients were divided into two distinct groups according to whether ANVISA’s guidelines for use of human albumin were followed by them or not. The economic perspective of the analysis regarded the health care provider, the NHS. The quality of life data of the patients were obtained through application of generic questionnaires SF36 and CHQ - PF50. The QALY index (quality-adjusted life year) was used to assess cost-utility comparison. At the end of the study 109 patients were selected, consisting of 60% adults, 56 % females, over 80 % blacks and dark-skinned, where 41.3 % followed the guidelines of ANVISA. The overall average cost per hospitalization (22 days average) to the NHS was R$ 2.360/patient. The analyzed parameters, weight, urine volume, and fluid balance were more effective in terms of cost for patients who followed the guidelines. The ICER for days of hospitalization avoided showed an additional cost of R$55.33/avoided day. The quality of life analysis showed that the majority followed the guidelines providing an increase of 8 % for quality of life and generating savings of R$ 3,458.13 per QALY gained. Sensitivity analyzes of the ICER and ICUR showed the robustness of the results, especially the variation of the QALY, which even after 60% of variability guaranteed savings for the system. The results of this study provided information on the use of human albumin in patients with nephrotic syndrome that can, along with other data, guide health care practices in the NHS from both clinical and financial standpoints. The economic analyzes that show better the costeffectiveness and cost utility of treatment patients who followed the recommendations the guideline of ANVISA.

Focal segmental glomerulosclerosis is one of the commonest cause of the nephrotic syndrome in adults patients. It is a damage of glomerulus characterized by leakage of proteins to urine and oedemas which usually develops into the end-stage renal disease within 10 years. Recently have been described familial forms of this disease which arise from injury to proteins making up filtration barrier of kidney. In 2005 non-selective ion channel TRPC6 was assigned among these proteins. In this thesis I focused on summarizing existing knowledge of the nephrotic syndrome, focal segmental glomerulosclerosis and involvement of TRPC6 in their origin. Second part of this work is devoted to the screening analysis of TRPC6 gene to discover possible mutations and polymorfisms in 47 patients with histologically proven focal segmental glomerulosclerosis or minimal change disease. The used methods were high resolution melting and direct sequencing. In the group of patients was detected no pathogenic mutation, only 2 known polymorfisms P15S and A404V and few changes which do not result in alteration of amino acid. So it seems TRPC6 gene mutations are a rare cause of the focal segmental glomerulosclerosis in adult patients in the Czech Republic.

Síndrome nefrótica é definida pela presença simultânea de edema sistêmico, hipoalbuminemia e proteinúria intensa. Vários componentes da composição corporal, principalmente relacionados à água corporal, sofrem rápidas e frequentes alterações nessa síndrome. A espectroscopia por bioimpedância (BIS) é um método de fácil execução, baixo custo, que pode ser repetido e praticamente isento de riscos que permite avaliar água corporal, massa magra e gordura corporal e tem sido pouco utilizado na síndrome nefrótica. Objetivo. Avaliar as alterações da água e de outros componentes da composição corporal através da BIS em pacientes com síndrome nefrótica. Métodos. Pacientes foram avaliados na ocasião da biópsia renal e no desfecho com ou sem remissão do edema. Foram medidos o peso corporal, albumina sérica e proteinúria de 24 h e, pela BIS, variáveis relacionadas à água corporal e a outros parâmetros de composição corporal. Resultados. Foram estudados 17 pacientes (idade: 51,1 + 17,4 anos) com síndrome nefrótica. Dez pacientes obtiveram remissão do edema (grupo R), sendo que em nove ocorreu também remissão da síndrome nefrótica. Em sete pacientes o edema permaneceu presente, sem remissão (grupo SR). A variação entre a primeira e a segunda medida para a sobrecarga hídrica foi de -5,4 L (-8,5 L; -1,8 L) no grupo R e de 0,0 L (-1,1 L; 1,2 L) no grupo SR (p < 0,05). A água corporal total variou de -4,75 L (- 10,20 L; -2,50 L) e de 4,80 L (-1,30 L; 6,10 L) nos grupos R e SR, respectivamente (p < 0,05), e a água extracelular variou de -5,90 L (-10,10 L; -0,42 L) e de 1,20 L (-0,80 L; 2,70 L) nos mesmos grupos (p < 0,05). Não houve diferença estatisticamente significante na variação entre as duas avaliações nos grupos R e SR para a água intracelular, massa de tecido magro, massa de tecido adiposo, massa gorda total e massa celular corporal. A variação do ângulo de fase entre as avaliações foi de 1,55° (0,41°; 2,24°) no grupo R e 0,10° (-0,28°; 0,46°) no grupo SR (p < 0,05). Houve correlação estatisticamente significante entre cada variável definidora da síndrome nefrótica (peso corporal, proteinúria e albumina sérica) versus sobrecarga hídrica, água corporal total, água extracelular e ângulo de fase, mas não versus as demais medidas de composição corporal obtidas pela BIS. Conclusão. A espectroscopia por bioimpedância mostrou-se eficiente em detectar mudanças da água corporal e do ângulo de fase em pacientes com síndrome nefrótica, mas não para identificar variações relacionadas à massa de tecido magro, massa de tecido adiposo, massa gorda total e massa celular corporal. . / Nephrotic syndrome is established by the simultaneous presence of systemic edema, hypoalbuminemia, and severe proteinuria. Several components of the body composition, mainly related to the body fluid, undergo to rapid and frequent changes in this syndrome. Spectroscopy by bioimpedance (BIS) is a reliable, cost-effective and easy-to-perform method to evaluate body water, adipose tissue mass, and body cell mass. Despite these advantages, BIS has barely been used to evaluate patients with nephrotic syndrome. Aims. To evaluate body fluid variable changes and other components of the body composition in patients with nephrotic syndrome by bioimpedance spectroscopy. Methods. Patients were studied in two moments: at the occasion of the renal biopsy (1st evaluation), and at the end-point (2nd evaluation). Patients were grouped according to they reached remission (Group R) or remained without remission (Group WR) of the edema at the 2nd evaluation. Body weight, serum albumin and 24 hours proteinuria were measured at the two time-points, as well as other variables associated with body fluid and other components of the body composition obtained by the BIS. Results. Seventeen patients (age: 51,1 + 17,4 years-old) with nephrotic syndrome were studied. Ten patients reached remission of the edema while nine of them were also in remission of the nephrotic syndrome. Seven patients remained with edema at the end-point. The variation between the 1st and the 2nd measurement for the overhydration was of -5,4 L (-8,5L; -1,8L) at the group R and of 0,0 (-1,1 L; 1,2 L) at the group NR (p < 0,05). Total body water changes were of -4,75 L (-10,20 L; -2,50 L) and of 4,80 L (-1,30 L; 6,10 L) at the groups R and WR, respectively (p < 0,05), and the extracellular water changed of the -5,90 L (-10,10 L; -0,42 L) and of 1,20 L (-0,80 L; 2,70 L) at the same groups, respectively (p < 0,05). There was no statistically significant difference in the variation between the two evaluations for the groups R and NR for intracellular water, lean tissue mass, fat mass, adipose tissue mass, and body cell mass. The variation of the phase angle between the two evaluations was of the 1,55° (0,41°; 2,24°) at the group R and 0,10° (-0,28°; 0,46°) at the group WR (p < 0,05). There was a statistically significant correlation between each related nephrotic syndrome variable compared with overhydration, total body water, extracellular water, and phase angle, but no difference when compared with the other variables related to the body composition measured by the BIS. Conclusion. The spectroscopy by bioimpedance was efficient to measure body water changes and the phase angle in patients with nephrotic syndrome. However, the BIS could not detect changes related to the intracellular water, lean tissue mass, fat mass, adipose tissue mass, and body cell mass.

Introdução: A curcumina é um polifenol presente no rizoma da espécie Curcuma longa L. que tem sido usado há séculos como medicamento anti-inflamatório na medicina asiática. A síndrome nefrótica é classicamente tratada com corticosteroides, uma potente classe antiinflamatória e imunossupressora. O tratamento pode trazer sérios efeitos adversos. Objetivos: Este estudo foi desenhado para avaliar o efeito anti-inflamatório e antiproteinúrico da C. longa na forma de droga vegetal, na lesão renal induzida pela doxorrubicina. Desenho do estudo: Trata-se de um estudo experimental in vivo. Métodos: O efeito anti-inflamatório e anti-proteinúrico da C. longa foi avaliado utilizando-se 4 grupos de ratos Wistar: dois grupos com lesão renal induzida por doxorrubicina (3,5 mg/kg) em dose única endovenosa, sendo um alimentando-se de ração padrão e outro com ração misturada a C. longa (5 mg/g de ração). Outros dois grupos controles sem lesão renal foram alimentados, sendo um com ração padrão e outro com C. longa. Foram coletadas amostras de urina para dosagem de albuminúria a cada 2 semanas. Após 8 semanas os animais foram anestesiados e coletado sangue para dosagem no plasma de creatinina, albumina, sódio, potássio, colesterol e osmolalidade. Nas amostras de urina foram dosados albuminúria, sódio, potássio, osmolalidade e os mediadores inflamatórios proteína quimiotática para monócitos-1 e fator de transformação do crescimento beta urinário. Foi coletado tecido renal para realização de microscopia de luz e de imuno-histoquímica para desmina, vimentina e células ED-1 positivas. Resultados: Após a 8a semana de acompanhamento, o tratamento com C. longa atenuou o aumento do MCP-1 urinário, do TGF-? urinário, da imunomarcação para desmina, vimentina e células ED-1+ nos ratos com lesão renal induzida. Conclusão: Os resultados sugerem que o uso de C. longa em um modelo experimental de lesão renal por doxorrubicina, por 8 semanas, não reduz a albuminúria, mas leva a diminuição dos mediadores inflamatórios renais MCP-1 e TGF-? urinário, além de imunomarcação para desmina, vimentina e células ED-1+ no tecido renal. / Background: Curcumin is a polyphenol present in the rhizome of the species Curcuma longa L., which has been used for centuries as an anti-inflammatory remedy in Asian medicine. Nephrotic syndrome is classically treated with corticosteroids, a potent antiinflammatory and immunosuppressive class. The treatment can cause serious adverse effects. Objectives: This study was designed to evaluate the anti-inflammatory and antiproteinuric effects of C. longa, as powdered dried rhizomes, in renal injury induced by doxorubicin. Study design: This is an in vivo experimental study. Methods: The antiinflammatory and anti-proteinuric effects of C. longa were evaluated in four groups of Wistar rats: two groups with intravenous doxorubicin-induced kidney injury (3.5 mg/kg), one fed with standard food and another with standard food mixed with C. longa (5 mg/g food). Two other control groups without kidney injury were fed, one with standard and one with C. longa-mixed food. Urine samples were collected for albuminuria every 2 weeks. After 8 weeks, the animals were anesthetized and blood was collected for measurement of plasma creatinine, albumin, sodium, potassium, cholesterol and osmolality. In the urine samples, measurements of albuminuria, sodium, potassium, osmolality and inflammatory mediators as monocyte chemoattractant protein-1 and transforming growth factor beta were done. Renal tissue was collected for light microscopy and immunohistochemistry for desmin, vimentin and ED-1 positive cells. Results: After the 8th week of follow-up, treatment with C. longa attenuated the increase of urinary MCP-1, urinary TGF-?, and immunostaining for desmin, vimentin and ED-1+ cells in rats with doxorubicin-induced kidney injury. Conclusion: The results suggest that the use of C. longa in an experimental model of nephrotic syndrome for 8 weeks does not reduce albuminuria, but there is a decrease in the inflammatory mediators urinary MCP- 1, urinary TGF-?, and immunostaining for desmin, vimentin and ED-1+ cells.

Síndrome nefrótica é definida pela presença simultânea de edema sistêmico, hipoalbuminemia e proteinúria intensa. Vários componentes da composição corporal, principalmente relacionados à água corporal, sofrem rápidas e frequentes alterações nessa síndrome. A espectroscopia por bioimpedância (BIS) é um método de fácil execução, baixo custo, que pode ser repetido e praticamente isento de riscos que permite avaliar água corporal, massa magra e gordura corporal e tem sido pouco utilizado na síndrome nefrótica. Objetivo. Avaliar as alterações da água e de outros componentes da composição corporal através da BIS em pacientes com síndrome nefrótica. Métodos. Pacientes foram avaliados na ocasião da biópsia renal e no desfecho com ou sem remissão do edema. Foram medidos o peso corporal, albumina sérica e proteinúria de 24 h e, pela BIS, variáveis relacionadas à água corporal e a outros parâmetros de composição corporal. Resultados. Foram estudados 17 pacientes (idade: 51,1 + 17,4 anos) com síndrome nefrótica. Dez pacientes obtiveram remissão do edema (grupo R), sendo que em nove ocorreu também remissão da síndrome nefrótica. Em sete pacientes o edema permaneceu presente, sem remissão (grupo SR). A variação entre a primeira e a segunda medida para a sobrecarga hídrica foi de -5,4 L (-8,5 L; -1,8 L) no grupo R e de 0,0 L (-1,1 L; 1,2 L) no grupo SR (p < 0,05). A água corporal total variou de -4,75 L (- 10,20 L; -2,50 L) e de 4,80 L (-1,30 L; 6,10 L) nos grupos R e SR, respectivamente (p < 0,05), e a água extracelular variou de -5,90 L (-10,10 L; -0,42 L) e de 1,20 L (-0,80 L; 2,70 L) nos mesmos grupos (p < 0,05). Não houve diferença estatisticamente significante na variação entre as duas avaliações nos grupos R e SR para a água intracelular, massa de tecido magro, massa de tecido adiposo, massa gorda total e massa celular corporal. A variação do ângulo de fase entre as avaliações foi de 1,55° (0,41°; 2,24°) no grupo R e 0,10° (-0,28°; 0,46°) no grupo SR (p < 0,05). Houve correlação estatisticamente significante entre cada variável definidora da síndrome nefrótica (peso corporal, proteinúria e albumina sérica) versus sobrecarga hídrica, água corporal total, água extracelular e ângulo de fase, mas não versus as demais medidas de composição corporal obtidas pela BIS. Conclusão. A espectroscopia por bioimpedância mostrou-se eficiente em detectar mudanças da água corporal e do ângulo de fase em pacientes com síndrome nefrótica, mas não para identificar variações relacionadas à massa de tecido magro, massa de tecido adiposo, massa gorda total e massa celular corporal. . / Nephrotic syndrome is established by the simultaneous presence of systemic edema, hypoalbuminemia, and severe proteinuria. Several components of the body composition, mainly related to the body fluid, undergo to rapid and frequent changes in this syndrome. Spectroscopy by bioimpedance (BIS) is a reliable, cost-effective and easy-to-perform method to evaluate body water, adipose tissue mass, and body cell mass. Despite these advantages, BIS has barely been used to evaluate patients with nephrotic syndrome. Aims. To evaluate body fluid variable changes and other components of the body composition in patients with nephrotic syndrome by bioimpedance spectroscopy. Methods. Patients were studied in two moments: at the occasion of the renal biopsy (1st evaluation), and at the end-point (2nd evaluation). Patients were grouped according to they reached remission (Group R) or remained without remission (Group WR) of the edema at the 2nd evaluation. Body weight, serum albumin and 24 hours proteinuria were measured at the two time-points, as well as other variables associated with body fluid and other components of the body composition obtained by the BIS. Results. Seventeen patients (age: 51,1 + 17,4 years-old) with nephrotic syndrome were studied. Ten patients reached remission of the edema while nine of them were also in remission of the nephrotic syndrome. Seven patients remained with edema at the end-point. The variation between the 1st and the 2nd measurement for the overhydration was of -5,4 L (-8,5L; -1,8L) at the group R and of 0,0 (-1,1 L; 1,2 L) at the group NR (p < 0,05). Total body water changes were of -4,75 L (-10,20 L; -2,50 L) and of 4,80 L (-1,30 L; 6,10 L) at the groups R and WR, respectively (p < 0,05), and the extracellular water changed of the -5,90 L (-10,10 L; -0,42 L) and of 1,20 L (-0,80 L; 2,70 L) at the same groups, respectively (p < 0,05). There was no statistically significant difference in the variation between the two evaluations for the groups R and NR for intracellular water, lean tissue mass, fat mass, adipose tissue mass, and body cell mass. The variation of the phase angle between the two evaluations was of the 1,55° (0,41°; 2,24°) at the group R and 0,10° (-0,28°; 0,46°) at the group WR (p < 0,05). There was a statistically significant correlation between each related nephrotic syndrome variable compared with overhydration, total body water, extracellular water, and phase angle, but no difference when compared with the other variables related to the body composition measured by the BIS. Conclusion. The spectroscopy by bioimpedance was efficient to measure body water changes and the phase angle in patients with nephrotic syndrome. However, the BIS could not detect changes related to the intracellular water, lean tissue mass, fat mass, adipose tissue mass, and body cell mass.