Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 47
Filtrar
1.
Future Sci OA ; 10(1): FSO970, 2024 Dec 31.
Artículo en Inglés | MEDLINE | ID: mdl-38884375

RESUMEN

Breast cancer is the most frequent cancer among women. Gastrointestinal tract metastases are uncommon and might be misidentified as primary carcinoma.A noteworthy case-study involved 53-year-old-woman complaining from epigastric pain, ascites and overall health decline. Initial investigations were inconclusive, prompting laparoscopic peritoneal biopsies which revealed independent cell proliferation. Subsequently, a second look upper digestive endoscopy showed multiple gastric ulcerations suggestive of gastric carcinoma. Histologic examination confirmed independent cell proliferation with estrogen receptors expression, a characteristic feature of breast carcinoma. Further investigations led to bilateral invasive lobular breast carcinoma diagnosis. Epirubicin cycophosphamide was prescribed after progression under letrozole ribocilib therapy.This case aims to raise awareness among clinicians about the importance of ruling out breast cancer in patients with peritoneal carcinosis and paying attention to digestive symptoms in breast cancer patients with careful gastric endoscopic examination to avoid misdiagnosis.


[Box: see text].

2.
Future Sci OA ; 10(1): FSO913, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38817380

RESUMEN

Aim: Guillain-Barré syndrome (GBS) occurrence is rare during inflammatory bowel disease (IBD) and SARS-CoV-2 infection. Its association with thrombotic vascular events, which are common during these two entities, is extremely rare. Case report: We report an exceptional association of GBS and cerebral venous thrombosis in a 28-year-old woman with active ulcerative colitis and no previous history of SARS-CoV-2 vaccination. Mildly symptomatic SARS-CoV-2 infection was diagnosed during etiological investigations of cerebral venous thrombosis. GBS symptoms began 10 days later with clinical and electrical abnormalities consistent with axonal GBS. Other GBS causes were excluded. Favorable outcomes were noted after intravenous immunoglobulin perfusion with full recovery 12 months later. Conclusion: Greater attention should be focused on IBD patients with SARS-CoV-2 infection regardless of its severity.


Guillain Barré Syndrome (GBS) is a rare disorder in which the immune system attacks one's own nerves. This is responsible for progressive muscle weakness and in severe cases paralysis until death. The association of vascular issues with GBS is rare, occurring in specific situations such as inflammatory bowel diseases or SARS-CoV-2 infections. Herein, we report an exceptional association of cerebral thrombosis and GBS, in a young female patient with ulcerative colitis and a mildly symptomatic SARS-CoV-2 infection, that was responsible for a gait disorder. Significant improvement was noted following immunoglobulin infusion and physical rehabilitation, with full recovery 12 months after treatment. Greater attention should be directed toward patients with SARS-CoV-2 infection regardless of its severity.


Rare but concerning: young ulcerative colitis patient developed Guillain Barré Syndrome & venous thrombosis post mild SARS-CoV-2 infection. Even benign COVID-19 cases can be deadly in some. #COVID19 #HealthComplications #IBD #LifeThreatening.

3.
Future Sci OA ; 9(10): FSO893, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37753362

RESUMEN

Primary hepatic lymphoma is a rare variant of non-Hodgkin's lymphoma with an incidence of 0.016% of all non-Hodgkin lymphomas. The most common histologic subtype is large diffuse B-cell lymphoma. Pathogenesis is not clearly established and undergoing immunosuppressive therapy has been proposed as a risk factor for primary hepatic lymphoma. We report an intriguing case study, featuring a 23-year-old male patient with Crohn's Disease who had been receiving a combination therapy of thiopurine and anti-TNF for 6 years and was diagnosed with primary hepatic diffuse large B-cell lymphoma.


Primary hepatic lymphoma is a rare type of cancer that mostly affects the liver and accounts for less than 1% of all lymphoma cases. The exact cause of primary hepatic lymphoma is unknown, but some evidence suggests that immunosuppressive therapy may increase the risk of developing this condition. We present a 23-year-old male patient who has a six-year history of Crohn's Disease, which is a long-lasting condition that causes inflammation. To manage his symptoms, he was taking two types of medications that weaken the immune system (thiopurine and anti-TNF medications). While being treated for Crohn's disease, he was also diagnosed with a rare type of primary hepatic lymphoma. This case raises intriguing questions about the relationship between immunosuppressive therapy and the development of primary hepatic lymphoma. It emphasizes the need for further research to better understand the underlying mechanisms and identify potential risk factors.

4.
Tunis Med ; 101(12): 907-911, 2023 12 05.
Artículo en Francés | MEDLINE | ID: mdl-38477199

RESUMEN

INTRODUCTION: Vitamin D plays a role in regulating the immune response through an immunomodulatory effect, and is probably involved in the pathophysiology of Crohn's disease (CD). AIM: to assess vitamin D status in patients with CD as well as in healthy controls and to determine associated factors of vitamin D deficiency in patients with CD. METHODS: We conducted a prospective study over 18 months, including CD patients with age and sex matched with healthy controls. Suboptimal vitamin D status was defined by vitamin D serum level < 30 ng/ml, vitamin insufficiency by vitamin D serum level between 10 and 30 ng/ml and vitamin deficiency serum level < 10 ng/ml. RESULTS: We included 77 subjects (52 patients with CD and 25 controls) with mean age of 38 years± 11. Most patients and controls had suboptimal levels of vitamin D (98% and 96% respectively) including vitamin D deficiency in 75% and 67%, respectively and vitamin D insufficiency in 25% and 33%, respectively. In univariate analysis, vitamin D deficiency was associated with disease flare-up (p=0.001), anemia (p=0.002), hypo-albuminemia (p=0.002), elevated C-reactive protein (CRP) (p=0.003), Crohn's Disease Activity Index (CDAI) (p<0.001), ileal location (p=0.04) and immunosuppressive therapy (p=0.01). In multivariate analysis, only CDAI was significantly associated with vitamin D deficiency (p=0.003, OR=9.33). CONCLUSION: Vitamin D deficiency is common in Tunisian CD patients as well as in controls and is associated with disease activity.


Asunto(s)
Enfermedad de Crohn , Deficiencia de Vitamina D , Humanos , Adulto , Enfermedad de Crohn/complicaciones , Prevalencia , Estudios Prospectivos , Vitamina D , Factores de Riesgo
5.
Tunis Med ; 101(12): 925-927, 2023 12 05.
Artículo en Inglés | MEDLINE | ID: mdl-38477202

RESUMEN

Isolated hepatic tuberculosis is a rare form of extrapulmonary tuberculosis. We report an exceptional case of a 51-year-old female patient complaining from right upper abdominal quadrant pain, who underwent laparoscopic surgery for millimetric gallbladder polyps. Preoperative ultrasound hepatic morphology and biochemical hepatic tests revealed no abnormalities. There were no clinical patterns for an active tuberculosis. During surgery time, scattered sub-centimeter whitish nodular lesions were discovered on the upper surface of the liver. Although gallbladder pathological examination did not reveal any significant abnormalities, per surgery hepatic biopsy indicated the presence of a giant cell granuloma with caseous necrosis highly suggestive of hepatic tuberculosis. Treatment by anti-bacillary drugs according to local standard protocol was conducted with favorable outcomes. Therefore, diagnosis of hepatic tuberculosis may be considered in endemic countries in totally asymptomatic patients or complaining from unexplained and isolated abdominal pain, in absence of any morphologic or biochemical hepatic abnormalities.


Asunto(s)
Colecistectomía Laparoscópica , Tuberculosis Hepática , Femenino , Humanos , Persona de Mediana Edad , Abdomen , Dolor Abdominal/etiología , Biopsia , Tuberculosis Hepática/complicaciones
6.
Clin Case Rep ; 10(10): e6443, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36245467

RESUMEN

Omphalolith is a rare and underdiagnosed entity due to the accumulation of sebum and keratin in the umbilicus. It usually occurs in the elderly with deep and narrow umbilicus. Early recognition of omphalolith is important to prevent complications, unnecessary investigations, and anxiety. We report herein two new cases of omphalolith.

7.
Cytokine ; 151: 154008, 2022 03.
Artículo en Inglés | MEDLINE | ID: mdl-28391873

RESUMEN

OBJECTIVES: Interleukin-10 (IL-10) plays an important role in the immunity to hepatitis C virus (HCV). Insofar as IL-10 variants are associated with altered levels of IL-10, previous studies that examined the association of IL-10 polymorphisms with the susceptibility to and progression of chronic HCV, and response to anti-viral treatment were inconsistent. We investigated the association between common IL-10 variants in the intron and the promotor region with HCV and associated features. METHODS: Study subjects comprised 120 patients infected with HCV-1b, and treated with Peg-IFN/RBV. Genotyping of six IL-10 promoter variants in the intron region (rs1878672, rs1554286, rs1518111) and promotor region (rs1800872, rs1800871, rs1800896) were done by real-time PCR. RESULTS: Compared to G/G, carriage of IL-10 rs1800896 (-1082A/G) A/A genotype was more frequent in patients with sustained virological response (SVR). The decline in viral load over the first 12weeks of treatment was more pronounced in rs1800896 A/A genotype carriers, compared to G/G genotype carriers, and was irrespective of the treatment dosage. Carriage of rs1800896 A/A genotype was positively associated with improvement in viral load decline, which was simultaneous, with and without carriage of the common favourable IL-28B variant. Carriage of both IL-10 rs1800896 G/G and IL-28B non-favourable genotype was associated with twice the risk of getting slow decline of viral load during treatment. Haploview analysis identified ACGCTA and CCGCTG haplotypes to be linked with excellent PegIFN/RBV cure rate, and complete HCV eradication. On the other hand, ACGCTG and CCGCTA haplotypes were associated with resistance to PegIFN/RBV treatment. CONCLUSION: IL-10 rs1800896 variant markedly influences the clinical outcome of HCV infection, and is a determinant of the response to HCV treatment.


Asunto(s)
Hepatitis C Crónica , Hepatitis C , Antivirales/uso terapéutico , Genotipo , Hepacivirus/genética , Hepatitis C/genética , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/genética , Humanos , Interferones/genética , Interleucina-10/genética , Interleucinas , Polimorfismo de Nucleótido Simple/genética , Ribavirina/uso terapéutico , Resultado del Tratamiento
8.
Clin Case Rep ; 9(4): 2442-2444, 2021 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-33936710

RESUMEN

Hypoxic hepatitis may occur due to hemodynamic mechanisms of hypoxia secondary to anemia without any context of reduced blood flow, respiratory failure, or shock state. Etiology of anemia should be investigated in order to avoid recurrence.

9.
Appl Clin Genet ; 14: 235-239, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33883924

RESUMEN

H syndrome is an extremely rare autosomal recessive affection caused by biallelic mutations in the SLC29A3 gene encoding the human equilibrative nucleoside transporter hENT3. The hallmark signs are cutaneous consisting of hyperpigmentation and hypertrichosis patches. Besides, associated systemic manifestations are highly various reflecting phenotypic pleiotropism. Herein, we report a first case of pseudo-Meigs' syndrome occurring in a young Tunisian H syndrome diagnosed patient with a novel homozygous frameshift mutation in exon 2 of the SLC29A3 gene: p.S15Pfs*86 inducing a premature stop codon. The patient developed ascites associated with left ovarian mass and she underwent surgery. After tumor resection, ascites disappeared rapidly. Histological examination showed serous cystadenoma of the ovary orienting the diagnosis towards pseudo-Meigs' syndrome.

10.
Viral Immunol ; 32(5): 214-220, 2019 06.
Artículo en Inglés | MEDLINE | ID: mdl-31081724

RESUMEN

Despite the current availability of more potent drugs, hepatitis C virus (HCV) infection is still treated with a combination of IFN-α and ribavirin in many countries. Interferon/ribavirin therapy can induce the appearance of autoantibodies to Rods and Rings (anti-RR), which have been associated to a poorer prognosis. The aim of this study was to investigate the prevalence of anti-RR antibodies before and after ribavirin therapy and to look for a possible association with HCV infection outcome. In this context, anti-RR antibodies were detected by IFI on HEp-2 cells in 142 patients under ribavirin therapy (G1: 74 patients with a positive posttreatment HCV-PCR and G2: 68 patients with a negative posttreatment HCV-PCR, matched in age and gender), 84 kidney transplant recipients (KTRs) under mycophenolate and 158 controls (30 with systemic lupus erythematosus, 37 with rheumatoid arthritis, and 91 healthy blood donors). No patient had anti-RR antibody before IFN-α/ribavirin therapy, while 27 (19%) developed the anti-RR pattern under treatment. The anti-RR antibody was absent in all KTRs and the 158 controls. The frequency of anti-RR antibody was significantly higher in G1 (27; 36.48%) than in G2 (0), p < 0.001. Moreover, and in G1, anti-RR antibody was more frequent in nonresponders (NR) patients (23, 56.1%) than in relapsers (REL) (4, 12.1%); p < 0.001, OR [95%CI] = 9.26 [2.75-31.18]. Moreover, anti-RR antibody titer was significantly higher in NR patients (3,200 [1,600-6,400]) comparatively to REL patients (800 [500-1,400]), p = 0.002. Likewise, log of viral load postribavirin therapy was significantly higher in anti-RR positive patients (6.24 ± 0.64) than in anti-RR negative (4.69 ± 1.06), p < 0.001. Based on these findings, ribavirin-induced anti-RR autoantibody seems to be associated with a more frequent nonresponse to IFN-α/ribavirin therapy with a significant higher HCV viral load.


Asunto(s)
Antivirales/uso terapéutico , Autoanticuerpos/sangre , Hepatitis C/inmunología , Ribavirina/uso terapéutico , Carga Viral , Adulto , Autoanticuerpos/inmunología , Femenino , Hepacivirus , Hepatitis C/tratamiento farmacológico , Humanos , Interferón-alfa/uso terapéutico , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Pruebas Serológicas , Resultado del Tratamiento , Adulto Joven
11.
Cytokine ; 99: 297-304, 2017 11.
Artículo en Inglés | MEDLINE | ID: mdl-28823914

RESUMEN

OBJECTIVES: TLRs are one of the most studied families of pathogen recognition receptors (PRRs) and play a pivotal role during HCV infection. The binding of ligands to TLRs on antigen presenting cells (APCs) leads to secretion of inflammatory cytokines, such as IL6, and induction of the acquired immunity response. Therefore, it has become necessarily to harness the TLRs properties' on therapeutically tools to enhance the HCV treatment response. Herein, we investigated the association between TLR3, TLR4 variants and nine IL-6 polymorphisms, and response to anti-viral treatment during HCV infection. METHODS: Study subjects comprised 120 patients infected with HCV-1b and treated with Peg-IFN/RBV. Genotyping of nine IL-6 variants were done by real -time PCR and genotyping of TLRs polymorphisms were done by RFLP-PCR. RESULTS: High frequency of TLR3 rs3775290 C/C genotype and TLR4 rs4986790 A/A genotype were noticed among patients with sustained viral response compared to Non-responder patients. The genetic association of TLR3 and TLR4 variants was evidenced by the improvement in the kinetics of viral load decline, with superiority of TLR3 compared to TLR4. Among, nine polymorphisms studied on IL-6 only rs1800796, rs2069845 and rs1880242 were associated with sustained viral response. Our study reports also that the common favourable IL-28B variant is essential for TLR-activated antiviral protection. CONCLUSION: TLR3 and TLR4 are involved in the pathogenesis of viral infections. TLR3 may be better suited than TLR4 to activate anti-viral program. Moreover, we propose that the Th2 cytokine, IL-6, constitutes a determinant of the outcome of therapy in HCV patients.


Asunto(s)
Hepatitis C Crónica/metabolismo , Interleucina-6/genética , Receptor Toll-Like 3/genética , Receptor Toll-Like 4/genética , Adulto , Alelos , Femenino , Haplotipos/genética , Humanos , Interferones , Interleucinas/genética , Estimación de Kaplan-Meier , Cinética , Masculino , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple/genética , Curva ROC , Factores de Tiempo , Resultado del Tratamiento , Túnez
12.
Cytokine ; 89: 62-67, 2017 01.
Artículo en Inglés | MEDLINE | ID: mdl-28340949

RESUMEN

BACKGROUND: Hepatitis C virus (HCV) infection is the major cause of hepatocellular carcinoma (HCC), a common primary liver malignancy, and the third leading cause of cancer-related death. The HCC risk increases with the severity of liver inflammation, and the clinical course of HCV infection depends on a balance between pro- and anti-inflammatory cytokines. The former includes interleukin (IL)-6, while the latter includes IL-10. However, the exact pathogenic mechanisms underlying IL-6 and IL-10 effects remain unclear. METHODS: The present study evaluated 174 chronic HCV Tunisian patients. Polymorphisms of IL-6 (rs1880242, rs1474847, rs2069840, rs1800797, rs1800796, rs2069845, rs2069827, rs1474348, rs1800795), and IL-10 (rs1800896, rs1800871, rs1800872, rs1554286, rs1878672, rs1518111) were determined by real-time PCR. RESULTS: Notable differences between chronic HCV-infected patients and HCC patients were observed for the three IL-10 SNPs; rs1800871 (-819T/C), rs1800872 (-592A/C), and rs1878672. Carriage of IL-6 rs1800796 G/G genotype, IL-6 rs1474358 C-allele, and IL-6 rs1800797 A-allele was more frequent in chronic HCV-infected patients than in HCC patients. On the other hand, IL-6 rs1474358 GG genotype had a favourable factor for HCC establishment. CONCLUSION: IL-10 and IL-6 SNPs markedly influence the clinical outcomes of HCV infection. These SNPs could be used as biomarkers for early detection and molecular therapy for preventing HCC, and prognostic factors for predicting the clinical outcomes of HCC.


Asunto(s)
Carcinoma Hepatocelular/genética , Predisposición Genética a la Enfermedad , Hepacivirus , Hepatitis C Crónica/genética , Interleucina-10/genética , Interleucina-6/genética , Neoplasias Hepáticas/genética , Polimorfismo de Nucleótido Simple , Adulto , Anciano , Alelos , Carcinoma Hepatocelular/virología , Femenino , Humanos , Neoplasias Hepáticas/virología , Masculino , Persona de Mediana Edad
14.
Tunis Med ; 94(11): 670, 2016 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-28994870

RESUMEN

INTRODUCTION: The variceal bleeding, main complication of portal hypertension during cirrhosis, is associated with high early mortality riskestimated between 15 and 20%. This highlights the necessity of predictive models that allow identifying high-risk patients raising the issue of amore aggressive therapeutic care. OBJECTIVE: To assess the performance of four scores for the prediction of cirrhotic patients' high early mortality risk due to digestive hemorrhageand to compare them to the Child-Pugh reference score. METHODS: We collected 87 cirrhotic patients admitted to the Gastroenterology Department of Charles Nicolle Hospital for a high digestivehemorrhage by rupture of gastric or esophageal varicose veins. RESULTS: 56 men and 31 women were included in this study. The average value of Rockall, Glasgow Blatchford, MELD and MELD-Na scores,was respectively equal to 6.19, 10.91, and 17.6 and at 20. Early mortality was 30%. The average value of all the scores was significantly higherwith the prematurely deceased patients (p<0.001). The MELD-Na score had higher sensitivity and specificity for the prediction of prematuremortality compared to the other scores but without statistical significantly difference (Area under the ROC curve: MELD-Na=0.867, p<0.001;Child-Pugh=0.809, p<0.001; Rockall=0.777, p=0.001; Glasgow-Blatchford=0.761, p<0.001; MELD=0.838, p<0.001). The predictive value of thecut-off MELD-Na score was equal to 19 with a sensitivity of 70% and a specificity of 82%. CONCLUSION: The studied four scores had a good predictive value of early mortality risk by varicose digestive hemorrhage with cirrhotic patients.


Asunto(s)
Várices Esofágicas y Gástricas/complicaciones , Hemorragia Gastrointestinal/mortalidad , Cirrosis Hepática/complicaciones , Femenino , Hemorragia Gastrointestinal/etiología , Humanos , Masculino , Persona de Mediana Edad , Mortalidad Prematura , Valor Predictivo de las Pruebas , Pronóstico , Curva ROC , Estudios Retrospectivos , Índice de Severidad de la Enfermedad
15.
Tunis Med ; 94(12): 867, 2016 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28994887

RESUMEN

BACKGROUND: Hepatic hydrothorax is a less common complication of cirrhosis with an estimated prevalence of 10- 15%. In the vast majority of cases, ascites are also present but significant pleural effusion may develop in patients without ascites. Hepatic hydrothorax is associated with cirrhosis whatever its etiology. The prognosis of hepatic hydrothorax remains unclear and is closely related to available therapeutic options. The aim of our study is to determine the prevalence of hydrothorax in cirrhotic patients, detail its clinical and therapeutic characteristics, and study the evolutive profile of cirrhotic patients with hydrothorax by comparing it to those without hydrothorax. We also search predictive factors of development of this complication in cirrhotic patients. METHODS: We conduct a retrospective and case-control study including 63 cirrhotic patients with hepatic hydrothorax hospitalized in gastroenterology department of Charles Nicolle hospital of Tunis, during a period of fiveteen years, from January 2000 to January 2015. RESULTS: The prevalence of hydrothorax was 14.5%. The mean age was 62 ± 14 years (range, 22- 86 years). The sex ratio H/F was 1.52. Hepatic hydrothorax was symptomatic in 35 patients. It was right-sided in 60%, left-sided in 24% and bilateral in 16% of cases. Hydrothorax was on average size abundance in 54% of cases. It was transsudatif in 52.5% of cases. Hepatitis C was the most frequent cause of cirrhosis (54%). Our results show that hepatic hydrothorax was present with important ascites in 35 patients. Hydrothorax was significantly related to Child-Pugh C severity of cirrhosis (p=0.0001). Hydrothorax occurence was significantly associated with a low level of albumin (p=0.001), an important hyponatremia (p=0.001) and a low prothrombin rate (p=0.02). A therapeutic thoracentesis was performed in 57% of cases. Diuretics based on spironolactone and furosemide were indicated in 30 patients. Evolution was favorable in 19 patients. Refractory hepatic hydrothorax was present in 31 patients. Death, in the days which follow the hospitalisation, was in 13 patients. The 5-years survival rate was 60%. The mean survival time of patients with hepatic hydrothorax was 8.41 years against 10.75 years at patients without hepatic hydrothorax. CONCLUSION: Hepatic hydrothorax is a common complication in our study. The improvement of the prognosis of our patients would require a better therapeutic management and especially the possibility of orthotopic liver transplantation which is the optimal therapeutic option for patients with hepatic hydrothorax.


Asunto(s)
Hidrotórax/etiología , Cirrosis Hepática/complicaciones , Adulto , Anciano , Anciano de 80 o más Años , Ascitis/etiología , Estudios de Casos y Controles , Femenino , Hepatitis C/complicaciones , Humanos , Hidrotórax/epidemiología , Masculino , Persona de Mediana Edad , Derrame Pleural/etiología , Prevalencia , Estudios Retrospectivos , Túnez/epidemiología , Adulto Joven
16.
Tunis Med ; 93(2): 59-62, 2015 Feb.
Artículo en Español | MEDLINE | ID: mdl-26337298

RESUMEN

BACKGROUND: The viral B reactivation is associated to deadly serious forms. There exist populations suffering this risk yet with a possibility of prevention through a pre-emptive treatment. PURPOSES: Establishing the diagnosis of a viral B reactivation. Identifying the patients with risk of exposure to viral B reactivation and implementing the means of prevention of viral reactivation. METHODS: literature review RESULTS: the diagnosis of reactivation is not consensual. It is evoked facing a fast increase of aminotransferases with the ALAT superior to 5-10 times normal or superior to 3 times the basic value, an ascension of the HBV DNA within the serum, a reappearance of anti Hbc of IgM type with, most often, a weak title and /or a reversion Hbs. The reactivation depends on the type of treatment and of the viral B status. It was described under chemotherapy concerning the solid tumors particularly that of the breast, in haematology and increases with the resort to monoclonal antibody (anti-CD20). Under anti-TNFα a reactivation is possible within a variable deadline from the 1st to the 12th perfusion. Besides the type of treatment, the risk is more important with the patients Ag Hbs positive and correlated with the viremia. However, the patients having an occult hepatitis B or even a recovered from hepatitis are equally exposed to the risk of reactivation. CONCLUSION: viral reactivation is frequent since the larger use of immunosuppressive therapy, anti-TNFα and monoclonal antibody. The determination of the initial viral B status by a serology is indispensable. In order to indicate either surveillance or a preemptive treatment.


Asunto(s)
Virus de la Hepatitis B/fisiología , Hepatitis B/prevención & control , Hepatitis B/virología , Activación Viral , Humanos , Factores de Riesgo , Prevención Secundaria/métodos
17.
J Clin Virol ; 69: 184-9, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-26209404

RESUMEN

BACKGROUND: Despite considerable progress in the treatment of chronic hepatitis C, many countries do not have access to these new treatments. OBJECTIVES: Predictive markers of response to treatment are therefore necessary before initiating with historical combination therapy (PEG-IFN+ribavirin) for these populations. STUDY DESIGN: We therefore evaluated the influence of IL28B polymorphisms on treatment response and Inosine Triphosphate (ITPA) polymorphisms on the incidence of anaemia in a population of 120 Tunisian patients infected with HCV genotype 1b and treated. RESULTS: The frequencies of favourable IL28B genotypes were 47% (CC for rs12979860) and 63% (TT for rs8099117). Patients in whom favourable IL28B alleles were identified had a higher chance of successful therapy: 82% for CC (rs12979860) and 75% for TT (rs8099117). Viral load decline during the first twelve weeks of treatment was more pronounced in patients with a favourable genotype (p<0.0001). For patients with an unfavourable genotype, the second phase of viral decline was more pronounced in patients with SVR. A viral load decline cut-off of 2.68logIU/mL at week 12 was best suited to discriminate responders from non-responders with an odds ratio of 40 (95% CI:11.53-170.3). Analysis of ITPA polymorphisms revealed that 16% of Tunisian patients presented ITPase deficiency. None of these patients experienced a decline of ribavirin doses during treatment versus 67% for patients without ITPase deficiency (p<0.001). CONCLUSION: These data obtained in a Tunisian population should optimize before and during treatment the chances of success for treatments currently available in Tunisia for chronic HCV infection.


Asunto(s)
Antivirales/uso terapéutico , Hepatitis C Crónica/tratamiento farmacológico , Hepatitis C Crónica/genética , Interleucinas/genética , Pirofosfatasas/genética , Anemia/epidemiología , Quimioterapia Combinada , Femenino , Hepacivirus/efectos de los fármacos , Hepacivirus/genética , Humanos , Interferón alfa-2 , Interferón-alfa/uso terapéutico , Masculino , Polietilenglicoles/uso terapéutico , Polimorfismo de Nucleótido Simple , Proteínas Recombinantes/uso terapéutico , Ribavirina/uso terapéutico , Resultado del Tratamiento , Túnez/epidemiología , Carga Viral/efectos de los fármacos
18.
Gene ; 568(2): 140-5, 2015 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-25982858

RESUMEN

The present study was undertaken to investigate the association between Hepatitis B Virus (HBV) infection and polymorphisms of tumour necrosis factor alpha TNF-α -308 G>A, TNF-α -238 G>A and TNF RII VNTR (p75) gene promoter in a Tunisian population. Blood samples were collected from 100 Tunisian patients with HBV infection, 45 with Chronic Hepatitis (CH), 36 with Liver Cirrhosis (LC), 15 with Hepatocellular Carcinoma (HCC) and 200 healthy individuals of similar ethnicity. Genomic DNA was extracted from peripheral blood leukocytes. Genotyping of the analysed polymorphisms was performed using Amplified Refractory Mutation System-Polymerase Chain Reaction (ARMS-PCR), Restriction Fragment Length Polymorphism (RFLP) and Variable Number Tandem Repeat PCR (PCR-VNTR). The variant homozygotes -308 GG were associated with 50% decreased risk of HBV chronic infection (GG vs AA+GA; p=0.010; OR=0.50; 95%CI=0.29-0.85). However, the carriers of minor allele -308 A have higher risk (1.5 times) to develop a chronic infection than other patients (p=0.027; OR=1.46; 95%CI=1.04-2.06). The minor allele of -238 polymorphism was positively associated with virus resistance and the development of chronic infection (p=0.043; OR=1.42; 95%CI =1.01 1.99). The distribution of -308, -238 and TNF RII VNTR (p75) among the three groups differed significantly. For HCC groups, there were statistically significant differences in allele distribution in -308, -238 respectively in which A allele remains a risk factor for HBV evolution to HCC (p=0.008 and p=0.026). Haplotype analysis revealed that TNF-α (-308A; -238A) was significantly associated to HBV chronic infection and moreover to disease aggravation to HCC stage. Our findings imply that variations in the genes governing the levels of constitutive and inducible TNF-α and TNF RII might be an important risk factor, which could explain the variable outcomes of HBV infection.


Asunto(s)
Hepatitis B Crónica/genética , Receptores Tipo II del Factor de Necrosis Tumoral/genética , Factor de Necrosis Tumoral alfa/genética , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/virología , Estudios de Casos y Controles , Progresión de la Enfermedad , Femenino , Frecuencia de los Genes , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Haplotipos , Humanos , Mutación INDEL , Desequilibrio de Ligamiento , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/virología , Masculino , Persona de Mediana Edad , Repeticiones de Minisatélite , Polimorfismo de Nucleótido Simple , Estudios Prospectivos , Túnez
19.
Int Immunol ; 27(6): 289-96, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25577194

RESUMEN

The aim of this study was to evaluate the association between the HLA-G 14-bp deletion/insertion (Del/Ins) polymorphism and soluble (s) HLA-G production in patients with Crohn's disease (CD). We analyzed also the sHLA-G molecules by ELISA and western blot in plasma samples. Among unselected patients, the 14-bp Del/Ins polymorphism was not significantly associated with increased CD risk neither for alleles (P = 0.371) nor for genotypes (P = 0.625). However, a significant association was reported between the 14-bp Del/Ins polymorphism and CD, in particular in young-onset CD patients for alleles [P = 0.020, odds ratio (OR) = 2.438, 95% confidence interval (CI): 1.13-5.25] but not with adult-onset CD patients. A significant association was reported concerning the genotype Ins/Ins for young-onset CD patients (P = 0.029, OR = 3.257, 95% CI: 1.08-9.77). We observed also a significant increase in sHLA-G measured by ELISA in CD patients compared to controls (P = 0.002). The 14-bp Del/Del and 14-bp Del/Ins genotypes are the high HLA-G producers. Among sHLA-G(positive) patients, 43% of subjects present dimers of HLA-G. The presence of dimers seems to be related to the advanced stages of the disease. The 14-bp Del/Ins polymorphism is associated with an increased risk of CD particularly in young-onset CD patients and controls sHLA-G plasma levels. Dimers of sHLA-G are frequent in advanced disease stages. The above findings indicate that the genetic 14-bp Del/Ins polymorphism in exon 8 of the HLA-G gene is associated with the risk of CD and suggest a role for sHLA-G as a prognostic marker for progressive disease.


Asunto(s)
Enfermedad de Crohn/genética , Antígenos HLA-G/genética , Adulto , Edad de Inicio , Enfermedad de Crohn/inmunología , Dimerización , Progresión de la Enfermedad , Frecuencia de los Genes , Estudios de Asociación Genética , Predisposición Genética a la Enfermedad , Genotipo , Antígenos HLA-G/química , Humanos , Polimorfismo Genético , Riesgo , Eliminación de Secuencia , Adulto Joven
20.
Tunis Med ; 92(12): 717-22, 2014 Dec.
Artículo en Francés | MEDLINE | ID: mdl-25879595

RESUMEN

BACKGROUND: Obesity raises such a healthcare matter throughout the world. Its management is not only complex but also most often multidisciplinary. The medico-dietary treatment is of inconstant efficiency and the surgical treatment, though more efficient, presents a considerable morbidity-death rate. The endoscopic treatment through intra-gastric balloon avails a seducing alternative namely accounting for surgery preparation. AIM: To assess the efficiency of the endoscopic treatment through gastric balloon, both in the short and long term, and this is accounting for weight loss as well as tolerance. METHODS: We have carried out a retrospective study including the patients suffering from severe to morbid obesity and who had a gastric balloon implemented in our Endoscopy Unit between November 2005 and December 2007. RESULTS: Twenty one patients were included. The average age was 32,19 ± 12,65 years with extremes of 16 and 52 years. Fifteen patients suffered from morbid obesity. The patients' average weight was 134, 52 ± 26,46 kg (extremes 88 and 194 kg). Some co-morbidity was found out with 15 patients. Te balloon implementation (Héliosphère®) was carried out with no incidents in all patients. Six months after the balloon implementation, the average weight loss was 17,5% and the average loss of over weigh was 37%. In biological level, we noted a normalisation of fasting glycaemia in 28,6 % of cases, of the cholesterolemia in 100 %, of the triglyceridemia in 33,33%, of the uraemia in 42,8% and hepatic tests in 50 % of the cases. The metabolic syndrome disappeared in 28,57 % of cases. The assessment after a 5-year-period was marked by the need to surgical treatment in 4 patients and this is due to the loss of efficiency of endoscopic treatment. A bad tolerance of gastric balloon was observed in 34 % of the cases, dominated by sicknesses. Only one patient presented incoercible sicknesses with ionic troubles as well as deshydrating requiring the precocious extraction of the balloon after 48 hours of its implementation. CONCLUSION: The endoscopic treatment through intra gastric balloon is well tolerated but efficiently limited in time. It might be recommended in preparation for a surgical treatment or in case of contre- indication or surgery refusal.


Asunto(s)
Endoscopía Gastrointestinal/métodos , Balón Gástrico , Obesidad Mórbida/cirugía , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Obesidad Mórbida/epidemiología , Estudios Retrospectivos , Índice de Severidad de la Enfermedad , Resultado del Tratamiento , Pérdida de Peso , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...