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Guedes LR, Cançado GGL, Santos BC, Jacomassi LDS, Nardelli MJ, Osório FMF, Faria LC, Couto CA. Clinical, biochemical and histological features related to treatment response and prognosis in autoimmune hepatitis. Ann Hepatol 2024:101497. [PMID: 38460715 DOI: 10.1016/j.aohep.2024.101497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 11/19/2023] [Accepted: 01/02/2024] [Indexed: 03/11/2024]
Abstract
INTRODUCTION AND OBJECTIVES Autoimmune hepatitis (AIH) is a rare disease with a complex and not fully understood pathogenesis. Prognostic factors that might influence treatment response, relapse rates, and transplant-free survival are not well established. This study investigates clinical and biochemical markers associated with response to immunosuppression in patients with AIH. MATERIALS AND METHODS This retrospective cohort study included 101 patients with AIH treated with immunosuppressants and followed at the Federal University of Minas Gerais, Brazil, from 1990 to 2018. Pretreatment data such as clinical profiles, laboratory, and histological exams were analyzed regarding biochemical response at one year, histological remission, relapse, and death/transplantation rates. RESULTS Cirrhosis was present in 59 % of cases at diagnosis. One-year biochemical remission was observed in 55.7 % of the patients and was found to be a protective factor for liver transplant. Overall survival was 89 %. Patients with ascites at disease onset showed a higher aspartate aminotransferase (AST)/ alanine aminotransferase (ALT) ratio and elevated Model of end-stage liver disease (MELD) score. The presence of ascites was significantly associated with a 20-fold increase in mortality rate. CONCLUSIONS AIH has a severe clinical phenotype in Brazilians, with high rates of cirrhosis and low remission rates. Early diagnosis and treatment are essential for achieving remission and reducing complications. The presence of ascites is significantly associated with mortality, emphasizing the importance of monitoring and prompt intervention. This study also stresses the need for further research on AIH in Latin America.
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Affiliation(s)
- Ludmila Resende Guedes
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Hospital Mater Dei, Belo Horizonte, Minas Gerais, Brazil.
| | - Guilherme Grossi Lopes Cançado
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil; Hospital da Polícia Militar de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Bruno Campos Santos
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luma Dos Santos Jacomassi
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mateus Jorge Nardelli
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Fernanda Maria Farage Osório
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luciana Costa Faria
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Cláudia Alves Couto
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Mussi MCL, Nardelli MJ, Santos BC, Abreu ESD, Osório FMF, Cançado GGL, Ferrari TCA, Faria LC, Couto CA. Pregnancy Outcomes in Wilson's Disease Women: Single-Center Case Series. Fetal Pediatr Pathol 2022; 41:741-748. [PMID: 34350816 DOI: 10.1080/15513815.2021.1960940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVES To evaluate and compare pregnancy outcomes in women with Wilson's disease (WD) undergoing different therapies during pregnancy. MATERIAL AND METHODS Retrospective review of medication in WD patients during pregnancy and the outcomes. RESULTS Of 26 pregnancies, zinc was used in 14 (53.8%), D-penicillamine in 4 (15.4%) patients, and 8 (30.8%) were untreated. Spontaneous abortion was observed in 8 (30.8%) pregnancies - untreated patients (4/8 pregnancies), zinc (2/14 pregnancies) and D-penicillamine (2/4 pregnancies) -, healthy outcome in 12 (46.1%) and birth defects in 6 (23.1%). All cases of birth defects occurred in patients using zinc therapy (6/14 pregnancies). CONCLUSIONS A remarkably high frequency of fetal complications shed lights on the potentially harmful effect of WD drugs during childbearing age. Zinc's safety profile may have to be better evaluated during pregnancy, as all of birth defects occurred with zinc therapy.
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Affiliation(s)
| | | | - Bruno Campos Santos
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | | | - Fernanda Maria Farage Osório
- Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Guilherme Grossi Lopes Cançado
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Teresa Cristina Abreu Ferrari
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Luciana Costa Faria
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Claudia Alves Couto
- Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil.,Instituto Alfa de Gastroenterologia, Hospital das Clínicas da Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
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Paixão GMDM, Santos BC, Araujo RMD, Ribeiro MH, Moraes JLD, Ribeiro AL. Machine Learning na Medicina: Revisão e Aplicabilidade. Arq Bras Cardiol 2022; 118:95-102. [PMID: 35195215 PMCID: PMC8959062 DOI: 10.36660/abc.20200596] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 12/02/2020] [Indexed: 01/04/2023] Open
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Dias RF, Diniz MML, Santos BC, Nobre VA. Gastrointestinal dysmotility in a patient with advanced lung cancer: paraneoplastic or drug-induced? BMJ Case Rep 2021; 14:14/1/e237835. [PMID: 33500301 PMCID: PMC7839852 DOI: 10.1136/bcr-2020-237835] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
A 75-year-old man was hospitalised for bronchoscopy with biopsy due to a suspicious pulmonary mass at chest tomography. He had significant dyspnoea, constipation, nausea, vomiting, anorexia and a 33% loss of weight in the past 3 months. Biopsy revealed a pulmonary squamous cell carcinoma, which was inoperable. Tramadol used at home for 3 months was replaced by morphine on admission. The patient remained constipated despite prokinetics and laxatives, leading to the diagnostic hypothesis of paraneoplastic motility disorder and opioid-induced constipation. Abdominal tomography ruled out the possibility of mechanical obstruction. As complications, the patient presented superior vena cava syndrome and opioid (morphine) intoxication. The patient died a few days later. The management of this case highlights the importance of multidisciplinary care and the challenges of palliative oncology care. Paraneoplastic motility disorder must always be considered among the mechanisms of intestinal dysfunction in patients with advanced oncological disease.
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Affiliation(s)
- Raphael Figuiredo Dias
- Universidade Federal de Minas Gerais Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
| | | | - Bruno Campos Santos
- Universidade Federal de Minas Gerais Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
| | - Vandack Alencar Nobre
- Clínica Médica, Universidade Federal de Minas Gerais Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
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Abstract
We report a case of a 25-year-old female patient who showed chronic hepatopathy with elevated levels of autoantibodies and gamma globulins, resembling autoimmune hepatitis. After 8 weeks of unsuccessful immunosuppressive treatment, further evaluation showed laboratorial and histological findings suggestive of Wilson's disease. The new treatment with D-penicillamine resulted in positive outcome, despite the initial misleading diagnosis.
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Affiliation(s)
- Bruno Campos Santos
- Department of Clínica Médica, Universidade Federal de Minas Gerais Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
| | - Ludmila Resende Guedes
- Department of Clínica Médica, Universidade Federal de Minas Gerais Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
| | - Luciana Costa Faria
- Department of Clínica Médica, Universidade Federal de Minas Gerais Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
| | - Claudia Alves Couto
- Department of Clínica Médica, Universidade Federal de Minas Gerais Faculdade de Medicina, Belo Horizonte, Minas Gerais, Brazil
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Andreoli MCC, Coelho MPV, Matos ACC, Rangel ÉB, Souza NKG, Góes MÂ, Ammirati AL, Matsui TN, Iizuca IJ, Carneiro FD, Ramos ACMS, Souza MA, Afonso RC, Ferraz-Neto B, Durão MS, Batista MC, Monte JCM, Pereira VG, Santos OFP, Santos BC. Previous renal support is a predictor for chronic renal replacement therapy after orthotopic liver transplantation. Crit Care 2011. [PMCID: PMC3124182 DOI: 10.1186/cc10180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Abstract
As a consequence of the proinflammatory environment occurring in dialytic patients, cytokine overproduction has been implicated in hemodialysis co-morbidity. However, there are discrepancies among the various studies that have analyzed TNF-alpha synthesis and the presence of peripheral blood mononuclear cell (PBMC) priming in this clinical setting. We measured bioactive cytokine by the L929 cell bioassay, and evaluated PBMC TNF-alpha production by 32 hemodialysis patients (HP) and 51 controls. No difference in TNF-alpha secretion was observed between controls and HP (859 +/- 141 vs 697 +/- 130 U/10(6) cells). Lipopolysaccharide (5 microg/ml) did not induce any further TNF-alpha release, showing no PBMC priming. Paraformaldehyde-fixed HP PBMC were not cytotoxic to L929 cells, suggesting the absence of membrane-anchored TNF-alpha. Cycloheximide inhibited PBMC cytotoxicity in HP and controls, indicating lack of a PBMC TNF-alpha pool, and dependence on de novo cytokine synthesis. Actinomycin D reduced TNF-alpha production in HP, but had no effect on controls. Therefore, our data imply that TNF-a production is an intrinsic activity of normal PBMC and is not altered in HP. Moreover, TNF-alpha is a product of de novo synthesis by PBMC and is not constitutively expressed on HP cell membranes. The effect of actinomycin D suggests a putative tighter control of TNF-alpha mRNA turnover in HP. This increased dependence on TNF-alpha RNA transcription in HP may reflect an adaptive response to hemodialysis stimuli.
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Affiliation(s)
- B C Santos
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brasil.
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Abstract
Hsp110, Osp94, and Hsp70RY are members of the recently described Hsp110/SSE subfamily of (heat and osmotic) stress proteins whose members are structurally related to the Hsp70/BiP gene superfamily. To date, little is known about the response of this gene family to stresses in vitro or in vivo. In this study, an analysis of mRNA expression showed that Hsp110 and Osp94, like Hsp70, are induced in renal murine inner medullary collecting duct (mIMCD3) epithelial cells by heat shock, hyperosmotic NaCl, and cadmium, whereas low pH had a suppressive effect on Osp94. H2O2 decreased expression of Osp94 while inducing levels of Hsp110 and Hsp70 message. Tunicamycin, hypertonic urea, and tumor necrosis factor- had no effects. Hsp70RY was responsive exclusively to cadmium chloride. Moreover, enhanced expression of Hsp110 and Osp94 was subsequent to induction of Hsp70 and was suppressed by inhibition of protein synthesis by cycloheximide. RT-PCR analysis showed Hsp110, Osp94, and Hsp70RY are ubiquitously expressed in mouse tissues. In murine kidney, there was a corticomedullary gradient of expression of Hsp110, Osp94, Hsp70RY, and Hsp70 but not Hsc70 or BiP. Furthermore, dehydration increased inner medullary expression of Hsp110 and Osp94. An analysis of stress tolerance in mIMCD3 cells showed that heat shock and hyperosmotic NaCl stress are cross-tolerant stresses, suggesting hyperosmolality is a physiological correlate of heat shock in mammalian kidney. Thus Hsp110 and Osp94 behave as heat shock proteins, although they are regulated differently than Hsp70.
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Affiliation(s)
- B C Santos
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
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Santos BC, Chevaile A, Hébert MJ, Zagajeski J, Gullans SR. A combination of NaCl and urea enhances survival of IMCD cells to hyperosmolality. Am J Physiol 1998; 274:F1167-73. [PMID: 9841510 DOI: 10.1152/ajprenal.1998.274.6.f1167] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Physiological adaptation to the hyperosmolar milieu of the renal medulla involves a complex series of signaling and gene expression events in which NaCl and urea activate different cellular processes. In the present study, we evaluated the effects of NaCl and urea, individually and in combination, on the viability of murine inner medullary collecting duct (mIMCD3) cells. Exposure to hyperosmolar NaCl or urea caused comparable dose- and time-dependent decreases in cell viability, such that 700 mosmol/kgH2O killed >90% of the cells within 24 h. In both cases, cell death was an apoptotic event. For NaCl, loss of viability at 24 h paralleled decreases in RNA and protein synthesis at 4h, whereas lethal doses of urea had little or no effect on these biosynthetic processes. Cell cycle analysis showed both solutes caused a slowing of the G2/M phase. Surprisingly, cells exposed to a combination of NaCl + urea were significantly more osmotolerant such that 40% survived 900 mosmol/kgH2O. Madin-Darby canine kidney cells but not human umbilical vein endothelial cells also exhibited a similar osmotolerance response. Enhanced survival was not associated with a restoration of normal biosynthetic rates or cell cycle progression. However, the combination of NaCl + urea resulted in a shift in Hsp70 expression that appeared to correlate with survival. In conclusion, hyperosmolar NaCl and urea activate independent and complementary cellular programs that confer enhanced osmotolerance to renal medullary epithelial cells.
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Affiliation(s)
- B C Santos
- Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
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Hairston NG, Santos BC. Ecological control of the snail host of Schistosoma japonicum in the Philippines. Bull World Health Organ 1961; 25:603-610. [PMID: 20604106 PMCID: PMC2555717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023] Open
Abstract
Ecological measures for the control of Oncomelania quadrasi have been in effect over a large part of the municipality of Palo, Leyte, Philippines, since the end of 1956. These measures involve draining, ponding or filling snail habitats. The results show that complete eradication of the snails is possible where complete control of water is achieved; less radical measures always leave a greater or smaller fraction of the snail population.In the area where control was planned, reductions of 50%, 80% and 85.7% were observed by mid-year 1957, 1958 and 1959 respectively. The figures include four large snail populations not subjected to control measures, but within the planned area; if these are omitted, 95% of the snails had been eliminated by July 1959. The measures used are expensive, but result in benefits in land reclamation and improved land use sufficient to offset the high cost.
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