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1.
Colorectal Dis ; 25(6): 1267-1276, 2023 06.
Article in English | MEDLINE | ID: mdl-36799340

ABSTRACT

AIM: To compare transanal irrigation with conservative bowel management for the treatment of bowel dysfunction in Spina bifida (SB) patients. METHODS: Patients with SB and bowel dysfunction were randomly assigned to receive either transanal irrigation or conservative bowel management. The effectiveness of the treatment was defined as a decrease of 4 points in the neurogenic bowel dysfunction (NBD) score at week 10. Data on incontinence (Cleveland scores; Jorge-Wexner [JW]) and constipation (Knowles-Eccersley-Scott Symptom Constipation Score [KESS]) were recorded at 10 and 24 weeks after inclusion. Data were analysed on an intention-to-treat basis. RESULTS: A total of 34 patients were randomised: 16 patients to conservative bowel management and 18 patients to transanal irrigation. A total of 19/31 (61%) patients improved at week 10, 13 (76%) in the transanal irrigation group versus six (43%) in the conservative group (p = 0.056). In the irrigation group, the decrease in NBD score was -6.9 (-9.9 to -4.02) versus -1.9 (-6.5 to -2.8) in the conservative group (p = 0.049 in univariate and p = 0.004 in multivariate analysis). The NBD, Cleveland (JW and KESS) and Rosenberg scores were significantly lower in the transanal irrigation group than in the conservative bowel management group at week 10. CONCLUSIONS: This prospective, randomised, controlled, multicentre study in adult patients with SB suggests that transanal irrigation may be more effective than conservative bowel management.


Subject(s)
Fecal Incontinence , Intestinal Diseases , Spinal Dysraphism , Humans , Adult , Prospective Studies , Fecal Incontinence/etiology , Fecal Incontinence/therapy , Therapeutic Irrigation , Constipation/etiology , Constipation/therapy , Spinal Dysraphism/complications , Spinal Dysraphism/therapy
2.
Mycoses ; 66(5): 396-404, 2023 May.
Article in English | MEDLINE | ID: mdl-36698317

ABSTRACT

BACKGROUND: Voriconazole (VRC), a widely used triazole antifungal, exhibits significant inter- and intra-individual pharmacokinetic variability. The main metabolite voriconazole N-oxide (NOX) can provide information on the patient's drug metabolism capacity. OBJECTIVES: Our objectives were to implement routine measurement of NOX concentrations and to describe the metabolic ratio (MR), and the contribution of the MR to VRC therapeutic drug monitoring (TDM) by proposing a suggested dosage-adjustment algorithm. PATIENTS AND METHODS: Sixty-one patients treated with VRC were prospectively included in the study, and VRC and NOX levels were assayed by LC-MS/MS. A mixed logistic model on repeated measures was implemented to analyse risk factors for the patient's concentration to be outside the therapeutic range. RESULTS: Based on 225 measurements, the median and interquartile range were 2.4 µg/ml (1.2; 4.2), 2.1 µg/ml (1.5; 3.0) and 1.0 (0.6; 1.9) for VRC, NOX and the MR, respectively. VRC Cmin <2 µg/ml were associated with a higher MR during the previous visit. MR values >1.15 and <0.48 were determined to be the best predictors for having a VRC Cmin lower than 2 µg/ml and above 5.5 µg/ml, respectively, at the next visit. CONCLUSIONS: Measurement of NOX resulted useful for TDM of patients treated with VRC. The MR using NOX informed interpretation and clinical decision-making and is very interesting for complex patients. VRC phenotyping based on the MR is now performed routinely in our institution. A dosing algorithm has been suggested from these results.


Subject(s)
Drug Monitoring , Invasive Fungal Infections , Humans , Voriconazole , Drug Monitoring/methods , Chromatography, Liquid , Tandem Mass Spectrometry , Antifungal Agents , Invasive Fungal Infections/drug therapy , Oxides
3.
Liver Int ; 42(11): 2473-2481, 2022 11.
Article in English | MEDLINE | ID: mdl-35727816

ABSTRACT

BACKGROUND & AIMS: The standard of care for haemochromatosis is regular phlebotomy in order to maintain low ferritin levels. Many patients report fatigue or joint pain despite serum ferritin within the therapeutic targets. We evaluated Patient-Reported Outcomes, and their relation with iron parameters, in C282Y homozygous patients undergoing maintenance phlebotomy. METHODS: Patients were prospectively enrolled in a French referral care centre. At each phlebotomy, patients completed a numeric fatigue scale, a joint pain questionnaire and SF-36 Mental Component Score (MCS) and Physical Component Score (PCS). Haemoglobin, iron, TS and ferritin were collected concomitantly. RESULTS: About 701 visits were performed in 259 patients. The median fatigue score was 3/10; 171 (66%) patients reported joint pain. Age and worsening of joint pain were associated with fatigue (p < .0001 for both). Female gender (p < .037), age (p < .003), and a decrease of TS (p = .050) were associated with joint pain. Main features associated with PCS <50 were worsening of joint pain and age (p < .001 for both) and TS <20% (p < .02). CONCLUSIONS: Fatigue was independent from iron parameters. The main factor impacting quality of life was joint pain, which was more severe in patients with low TS values. Then, a more precise monitoring of TS should be proposed during haemochromatosis maintenance therapy; while less stringent monitoring of serum ferritin levels could be tested.


Subject(s)
Hemochromatosis , Arthralgia , Fatigue/etiology , Female , Ferritins , Hemochromatosis/complications , Hemochromatosis/genetics , Hemochromatosis/therapy , Hemochromatosis Protein/genetics , Histocompatibility Antigens Class I , Humans , Iron/metabolism , Patient Reported Outcome Measures , Prospective Studies , Quality of Life , Transferrin
5.
J Hepatol ; 76(3): 568-576, 2022 03.
Article in English | MEDLINE | ID: mdl-34748893

ABSTRACT

BACKGROUND & AIMS: Ferroportin disease is a rare genetic iron overload disorder which may be underdiagnosed, with recent data suggesting it occurs at a higher prevalence than suspected. Costs and the lack of defined criteria to prompt genetic testing preclude large-scale molecular screening. Hence, we aimed to develop a readily available scoring system to promote and enhance ferroportin disease screening. METHODS: Our derivation cohort included probands tested for ferroportin disease from 2008 to 2016 in our rare disease network. Data were prospectively recorded. Univariate and multivariate logistic regression were used to determine significant criteria, and odds ratios were used to build a weighted score. A cut-off value was defined using a ROC curve with a predefined aim of 90% sensitivity. An independent cohort was used for cross validation. RESULTS: Our derivation cohort included 1,306 patients. Mean age was 55±14 years, ferritin 1,351±1,357 µg/L, and liver iron concentration (LIC) 166±77 µmol/g. Pathogenic variants (n = 32) were identified in 71 patients. In multivariate analysis: female sex, younger age, higher ferritin, higher LIC and the absence of hypertension or diabetes were significantly associated with the diagnosis of ferroportin disease (AUROC in whole derivation cohort 0.83 [0.78-0.88]). The weighted score was based on sex, age, the presence of hypertension or diabetes, ferritin level and LIC. An AUROC of 0.83 (0.77-0.88) was obtained in the derivation cohort without missing values. Using 9.5 as a cut-off, sensitivity was 93.6 (91.7-98.3) %, specificity 49.5 (45.5-53.6) %, positive likelihood ratio 1.8 (1.6-2.0) and negative likelihood ratio 0.17 (0.04-0.37). CONCLUSION: We describe a readily available score with simple criteria and good diagnostic performance that could be used to screen patients for ferroportin disease in routine clinical practice. LAY SUMMARY: Increased iron burden associated with metabolic syndrome is a very common condition. Ferroportin disease is a dominant genetic iron overload disorder whose prevalence is higher than initially thought. They can be difficult to distinguish from each other, but the limited availability of genetic testing and the lack of definitive guidelines prevent adequate screening. We herein describe a simple and definitive clinical score to help clinicians decide whether to perform genetic testing.


Subject(s)
Cation Transport Proteins/analysis , Hemochromatosis/diagnosis , Research Design/standards , Aged , Cation Transport Proteins/blood , Cohort Studies , Female , Hemochromatosis/blood , Humans , Iron/metabolism , Iron Overload/blood , Iron Overload/complications , Logistic Models , Male , Mass Screening/methods , Mass Screening/statistics & numerical data , Middle Aged , ROC Curve , Research Design/statistics & numerical data
6.
PLoS One ; 15(12): e0244063, 2020.
Article in English | MEDLINE | ID: mdl-33332468

ABSTRACT

Streptococcus pyogenes or group A Streptococcus (GAS) causes diseases ranging from uncomplicated pharyngitis to life-threatening infections. It has complex epidemiology driven by the diversity, the temporal and geographical fluctuations of the circulating strains. Despite the global burden of GAS diseases, there is currently no available vaccination strategy against GAS infections. This study, based on a longitudinal population survey, aimed to understand the dynamic of GAS emm types and to give leads to better recognition of underlying mechanisms for the emergence of successful clones. From 2009 to 2017, we conducted a systematic culture-based diagnosis of GAS infections in a French Brittany population with a prospective recovery of clinical data. The epidemiological analysis was performed using emm typing combined with the structural and functional cluster-typing system for all the recovered strains. Risk factors for the invasiveness, identified by univariate analysis, were computed in a multiple logistic regression analysis, and the only independent risk factor remaining in the model was the age (OR for the entire range [CI95%] = 6.35 [3.63, 11.10]; p<0.0001). Among the 61 different emm types identified, the most prevalent were emm28 (16%), emm89 (15%), emm1 (14%), and emm4 (8%), which accounted for more than 50% of circulating strains. During the study period, five genotypes identified as emm44, 66, 75, 83, 87 emerged successively and belonged to clusters D4, E2, E3, and E6 that were different from those gathering "Prevalent" emm types (clusters A-C3 to 5, E1 and E4). We previously reported significant genetic modifications for emm44, 66, 83 and 75 types resulting possibly from a short adaptive evolution. Herein we additionally observed that the emergence of a new genotype could occur in a susceptible population having specific risk factors or probably lacking a naturally-acquired cluster-specific immune cross-protection. Among emergent emm types, emm75 and emm87 tend to become prevalent with a stable annual incidence and the risk of a clonal expansion have to be considered.


Subject(s)
Genotype , Streptococcal Infections , Streptococcus pyogenes , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , France/epidemiology , Humans , Infant , Infant, Newborn , Male , Middle Aged , Prospective Studies , Streptococcal Infections/epidemiology , Streptococcal Infections/genetics , Streptococcal Infections/metabolism , Streptococcus pyogenes/genetics , Streptococcus pyogenes/isolation & purification , Streptococcus pyogenes/metabolism
7.
Oral Oncol ; 102: 104553, 2020 03.
Article in English | MEDLINE | ID: mdl-32004908

ABSTRACT

BACKGROUND: In head and neck squamous cell carcinoma (HNSCC) 30% of cN0 patients have occult metastasis. LN invasion is a major prognostic factor. Sentinel lymph node (SLN) is an option for cN0 neck management. One-step nucleic acid amplification (OSNA) used to analyze SLN in breast cancer is also a candidate to get more reliable intraoperative HNSCC lymph node (LN) staging. OBJECTIVE: To compare OSNA analysis to pathological analysis in cN0 HNSCC. MATERIALS AND METHODS: 157 LN from 26 cN0 HNSCC patients were prospectively analyzed (6.3LN/patient). Exclusion criteria were previous surgery or radiotherapy. Each node was cut into 4 equal pieces alternatively sent to pathological analysis and OSNA technique. IHC CK19 was performed on the primary tumor biopsy and RT-qPCR of CK19, PVA and EPCAM on the LN lysate of discordant cases. RESULTS: OSNA was able to provide intraoperative result in all patients. OSNA detected 21 metastases. There were 139 concordant LN (88.5%). There were 18 initial discordant LN (11.5%), 13 (8.3%) were OSNA positive/pathological analysis negative, 5 (3.2%) were OSNA negative/pathological analysis positive. After elimination of allocation bias, false negative rate was 1.3%, sensitivity and specificity were 90% and 95.6%, PPV and NPV were 75% and 98.5%. CONCLUSION: Our results suggest that OSNA should be considered to improve SNB analysis both for increasing micro metastasis diagnosis and offer extemporaneous results. Study registered under clinicaltrials.gov database number NCT02852343.


Subject(s)
Head and Neck Neoplasms/genetics , Lymphatic Metastasis/genetics , Nucleic Acid Amplification Techniques/methods , Squamous Cell Carcinoma of Head and Neck/genetics , Adult , Aged , Aged, 80 and over , Epithelial Cell Adhesion Molecule/analysis , Epithelial Cell Adhesion Molecule/genetics , Feasibility Studies , Female , Head and Neck Neoplasms/pathology , Humans , Keratin-19/analysis , Keratin-19/genetics , Lymph Node Excision/methods , Male , Middle Aged , Oligopeptides/analysis , Oligopeptides/genetics , Prospective Studies , RNA, Messenger/analysis , Sensitivity and Specificity , Sentinel Lymph Node , Squamous Cell Carcinoma of Head and Neck/secondary
8.
Clin Gastroenterol Hepatol ; 18(8): 1851-1857, 2020 07.
Article in English | MEDLINE | ID: mdl-31622736

ABSTRACT

BACKGROUND & AIMS: Fibrosis stage can decrease following treatment in patients with hemochromatosis caused by mutations in the homeostatic iron regulator gene (HFE), but the effects on cirrhosis are not clear. We assessed regression of severe fibrosis and the ensuing risk of liver cancer after treatment. METHODS: We performed a retrospective analysis of data from 106 patients in France or Australia who were homozygous for the C282Y mutation in HFE with F3 fibrosis (n = 40) or F4 fibrosis (n = 66) at diagnosis and from whom at least 1 liver biopsy was collected during follow up. We collected data from the time of first biopsy and during follow-up period on patient demographics, treatment, smoking habits, alcohol consumption, infection with hepatitis B or C viruses, and other diseases. The median time between first and last liver biopsy was 9.5 years (range, 3.5-15.6 years). We collected results of tests for liver function, markers of iron stores, and platelet levels. Patients were followed for a median 17.6 years (range, 9.8-24.1 years) for development of liver cancer occurrence. RESULTS: At last liver biopsy, 41 patients (38.6%) had fibrosis scores of F2 or less. Liver cancer occurred in 34 patients (52.3%) with F3 or F4 fibrosis at last liver biopsy vs 2 patients (4.8%) with fibrosis scores of F2 or less at last liver biopsy (P < .001). Liver cancer incidences were 32.8 per 1000 person-years (95% CI, 22.7-45.9 per 1000 person-years) in patients with F3 or F4 fibrosis and 2.3 per 1000 person-years (95% CI, 0.2-8.6 per 1000 person-years) in patients with fibrosis scores of F2 or less (P < .001). In multivariate analysis, male sex (hazard ratio [HR], 6.09; 95% CI, 1.21-30.4), age at diagnosis (HR, 1.16; 95% CI, 1.09-1.25), presence of diabetes (HR, 3.07; 95% CI, 1.35-6.97), excess alcohol consumption (HR, 3.1; 95% CI, 1.47-6.35), serum level of ferritin at diagnosis (P < .01), and regression to fibrosis scores of F2 or less (HR, 0.08; 95% CI, 0.01-0.62) were significantly associated with risk of liver cancer. CONCLUSIONS: In a retrospective analysis of patients with hemochromatosis caused by the C282Y mutation in HFE, we found that severe liver fibrosis can regress with treatment. In patients with fibrosis regression to a stage F2 or less, the long-term risk for liver cancer is significantly reduced.


Subject(s)
Hemochromatosis , Liver Neoplasms , Genes, Regulator , Hemochromatosis/complications , Hemochromatosis/epidemiology , Hemochromatosis/genetics , Hemochromatosis Protein/genetics , Histocompatibility Antigens Class I/genetics , Humans , Liver/pathology , Liver Cirrhosis/pathology , Liver Neoplasms/pathology , Male , Membrane Proteins/genetics , Mutation , Retrospective Studies
9.
J Hepatol ; 70(1): 118-125, 2019 01.
Article in English | MEDLINE | ID: mdl-30244162

ABSTRACT

BACKGROUND & AIMS: Genetic hemochromatosis is mainly related to the homozygous p.Cys282Tyr (C282Y) mutation in the HFE gene, which causes hepcidin deficiency. Its low penetrance suggests the involvement of cofactors that modulate its expression. We aimed to describe the evolution of disease presentation and of non-genetic factors liable to impact hepcidin production in the long term. METHODS: Clinical symptoms, markers of iron load, and risk factors according to the year of diagnosis were recorded over 30 years in a cohort of adult C282Y homozygotes. A total of 2,050 patients (1,460 probands [804 males and 656 females] and 542 relatives [244 males and 346 females]) were studied. RESULTS: Over time: (i) the proband-to-relative ratio remained roughly stable; (ii) the gender ratio tended towards equilibrium among probands; (iii) age at diagnosis did not change among males and increased among females; (iv) the frequency of diabetes and hepatic fibrosis steadily decreased while that of chronic fatigue and distal joint symptoms remained stable; (v) transferrin saturation, serum ferritin and the amount of iron removed decreased; and (vi) the prevalence of excessive alcohol consumption decreased while that of patients who were overweight increased. Tobacco smoking was associated with increased transferrin saturation. CONCLUSION: Genetic testing did not alter the age at diagnosis, which contrasts with the dramatic decrease in iron load in both genders. Tobacco smoking could be involved in the extent of iron loading. Besides HFE testing, which enables the diagnosis of minor forms of the disease, the reduction of alcohol consumption and the increased frequency of overweight patients may have played a role in the decreased long-term iron load, as these factors are likely to improve hepcidin production. LAY SUMMARY: Genetic hemochromatosis is an inherited disorder that leads to progressive iron overload in the body. It results in chronic fatigue and in potential liver (cirrhosis), pancreas (diabetes) and joint (arthritis) damage in adulthood. The present study showed that tobacco smoking may aggravate iron loading, but that hemochromatosis has become less and less severe over the last 30 years despite patients being older at diagnosis, likely because of the protective effects of lower alcohol consumption and of increased weight in the French population.


Subject(s)
Hemochromatosis Protein/genetics , Hemochromatosis/genetics , Mutation , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , DNA/genetics , DNA Mutational Analysis , Female , Follow-Up Studies , Genetic Testing , Genotype , Hemochromatosis/diagnosis , Hemochromatosis/metabolism , Hemochromatosis Protein/metabolism , Humans , Infant , Infant, Newborn , Male , Middle Aged , Phenotype , Prospective Studies , Retrospective Studies , Young Adult
10.
J Pediatr Adolesc Gynecol ; 32(1): 57-63, 2019 Feb.
Article in English | MEDLINE | ID: mdl-30205159

ABSTRACT

STUDY OBJECTIVE: To develop a predictive score for ovarian malignancy to avoid unnecessary adnexectomy in cases of adnexal mass in pediatric and adolescent girls. DESIGN: A population-based retrospective study on girls who underwent surgery for an ovarian mass with normal levels of human chorionic gonadotrophin and alpha fetoprotein between 1996 and 2016. SETTING: Rennes University Hospital, Rennes, France. PARTICIPANTS: Eighty-one patients who received surgery for ovarian tumor. MAIN OUTCOME MEASURES: The main outcome measure was the rate of malignant and borderline tumor. A preoperative scoring system was constructed after multivariate analysis. RESULTS: The rate of malignant ovarian tumor was 6/81 (7%), borderline tumor was 7/81 (9%) (ie, outcome measure: 16%), and benign tumor was 84%. In a univariate analysis, the characteristics significantly associated with malignancy were early puberty, palpable mass, size and content of the tumor, and positive epithelial tumor markers (carcinoma antigen 125, carcinoembryonic antigen, and carcinoma antigen 19-9). The predictive malignancy score was on the basis of 2 variables obtained after multivariate analysis: tumor size and cystic content. The score defined 3 groups at risk for malignancy: low risk, middle-risk, and high-risk. The sensitivity for detecting malignancy was 1.3% (95% confidence interval [CI], 0.1-18.4), 26.2% (95% CI, 11.6-49.0), and 53.1% (95% CI, 29.1-75.8), respectively. CONCLUSION: We set up a simple predictive score of malignancy on the basis of objective criteria to help decision-making on whether or not ovarian-sparing surgery is feasible in case of children and adolescents with ovarian tumors and normal human chorionic gonadotrophin and alpha fetoprotein levels while ensuring oncologic safety.


Subject(s)
Adnexal Diseases/diagnosis , Fertility Preservation/methods , Ovarian Neoplasms/diagnosis , Adnexal Diseases/pathology , Adnexal Diseases/surgery , Adolescent , Adult , Biomarkers, Tumor/blood , Child , Child, Preschool , Female , France , Humans , Infant , Ovarian Neoplasms/pathology , Ovarian Neoplasms/surgery , Preoperative Care/methods , Retrospective Studies , Sensitivity and Specificity , Young Adult
11.
Eur Radiol ; 28(5): 2022-2030, 2018 May.
Article in English | MEDLINE | ID: mdl-29178028

ABSTRACT

OBJECTIVES: To evaluate the performance and limitations of the R2* and signal intensity ratio (SIR) methods for quantifying liver iron concentration (LIC) at 3 T. METHODS: A total of 105 patients who underwent a liver biopsy with biochemical LIC (LICb) were included prospectively. All patients underwent a 3-T MRI scan with a breath-hold multiple-echo gradient-echo sequence (mGRE). LIC calculated by 3-T SIR algorithm (LICSIR) and by R2* (LICR2*) were correlated with LICb. Sensitivity and specificity were calculated. The comparison of methods was analysed for successive classes. RESULTS: LICb was strongly correlated with R2* (r = 0.95, p < 0.001) and LICSIR (r = 0.92, p < 0.001). In comparison to LICb, LICR2* and LICSIR detect liver iron overload with a sensitivity/specificity of 0.96/0.93 and 0.92/0.95, respectively, and a bias ± SD of 7.6 ± 73.4 and 14.8 ± 37.6 µmol/g, respectively. LICR2* presented the lowest differences for patients with LICb values under 130 µmol/g. Above this value, LICSIR has the lowest differences. CONCLUSIONS: At 3 T, R2* provides precise LIC quantification for lower overload but the SIR method is recommended to overcome R2* limitations in higher overload. Our software, available at www.mrquantif.org , uses both methods jointly and selects the best one. KEY POINTS: • Liver iron can be accurately quantified by MRI at 3 T • At 3 T, R2* provides precise quantification of slight liver iron overload • At 3 T, SIR method is recommended in case of high iron overload • Slight liver iron overload present in metabolic syndrome can be depicted • Treatment can be monitored with great confidence.


Subject(s)
Iron Overload/diagnostic imaging , Iron Overload/metabolism , Liver/metabolism , Liver/pathology , Magnetic Resonance Imaging/methods , Algorithms , Biopsy , Female , Humans , Male , Middle Aged , Prospective Studies , Reproducibility of Results , Sensitivity and Specificity
12.
Endocrine ; 57(3): 504-511, 2017 Sep.
Article in English | MEDLINE | ID: mdl-28664309

ABSTRACT

INTRODUCTION: Gastric neuro-endocrine tumours are rare. European guidelines for the management of neuro-endocrine tumours have been published in 2012. The aim of our survey was to study the management of gastric neuro-endocrine tumours registered in the national cohort. A prospective national cohort registers the Neuro-endocrine tumours in France since January 2003 (GTE network). We reviewed all the individual medical reports of gastric neuro-endocrine tumours in order to collect data on treatment. RESULTS: One hundred and ninety seven gastric neuro-endocrine tumours diagnosed between 1964 and 2013 in 20 centres were registered. For 181 cases data were considered complete for our survey. Eighty four tumours were type 1 (46.4%); five types 2 (2.8%); 52 types 3 (28.7%) and 40 types 4 (22.1%). Types 1 and 2 were first endoscopically managed in 93 and 60% of cases, respectively, whereas surgery was first done in 45 and 42%, respectively, of types 3 and 4. Systemic treatment, chemotherapy and/or somatostatin analogue, was first administered exclusively for types 3 and 4. Near 3% of types 1 and 40% of types 2 received at a time somatostatin analogue treatment. Five-year survival rates were 98.3, 100, 63.2 and 31.8% for types 1, 2, 3 and 4, respectively. CONCLUSION: The great majority of gastric neuro-endocrine tumours registered in this national cohort are treated in accordance with the current guidelines. The survival rates we reported must be interpreted with caution, because this cohort registered preferentially selected patients eligible for treatment. The registration of all the gastric neuro-endocrine tumours, in particular type 1 considered as benign and type 4 not eligible for specific anti-cancer treatment must be encouraged.


Subject(s)
Intestinal Neoplasms/therapy , Neuroendocrine Tumors/therapy , Pancreatic Neoplasms/therapy , Practice Guidelines as Topic , Practice Patterns, Physicians' , Stomach Neoplasms/therapy , Adolescent , Adult , Aged , Aged, 80 and over , Child , Cohort Studies , Combined Modality Therapy , Female , Follow-Up Studies , France , Health Care Surveys , Humans , Intestinal Neoplasms/mortality , Intestinal Neoplasms/pathology , Male , Middle Aged , Neoplasm Grading , Neoplasm Staging , Neuroendocrine Tumors/mortality , Neuroendocrine Tumors/pathology , Pancreatic Neoplasms/mortality , Pancreatic Neoplasms/pathology , Prospective Studies , Registries , Stomach Neoplasms/mortality , Stomach Neoplasms/pathology , Survival Analysis , Young Adult
13.
Fundam Clin Pharmacol ; 31(5): 567-573, 2017 Oct.
Article in English | MEDLINE | ID: mdl-28370178

ABSTRACT

Hepcidin, secreted by hepatocytes, controls iron metabolism by limiting iron egress in plasma. Hepcidin is upregulated during inflammation through the activation of the signal transducer and activator of transcription 3 (STAT3) transduction pathway, which decreases iron bioavailability and may explain the anemia of chronic inflammatory disease. In vitro, it has been shown that curcumin can decrease hepcidin synthesis by decreasing STAT3 activity. We conducted a proof-of-concept study to assess the effect of curcuma on hepcidin synthesis in human. This was a placebo-controlled, randomized, double-blind, cross-over, two-period study performed in 18 healthy male volunteers. Subjects received a single oral dose of 6 g curcuma containing 2% of curcumin or placebo. Serum hepcidin and iron parameters were assessed repeatedly until 48 h after dosing. When compared with a placebo curcuma decreased hepcidin levels significantly at 6 h (-19%, P = 0.004), 8 h (-17%, P = 0.009), and 12 h (-17%, P = 0.007) and tended to decrease hepcidin at 24 h (-15%, P = 0.076). Curcuma also significantly increased serum ferritin levels at 6 and 8 h (+7% for both times, P = 0.018, 0.030, respectively) and had no effects on serum iron, transferrin, and transferrin saturation. This pilot study showed that curcuma decreases serum hepcidin levels in human and supports the idea that curcuma could be useful in treating hepcidin overproduction during inflammatory processes. Confirmatory studies in patients with chronic inflammation are now required to determine the optimal dose and therapeutic scheme of curcuma.


Subject(s)
Blood Glucose/drug effects , Curcuma , Hepcidins/blood , Plant Extracts/administration & dosage , Administration, Oral , Adult , Biomarkers/blood , Blood Glucose/metabolism , Cross-Over Studies , Double-Blind Method , Healthy Volunteers , Humans , Male , Pilot Projects , Young Adult
14.
Clin Gastroenterol Hepatol ; 15(10): 1620-1627, 2017 Oct.
Article in English | MEDLINE | ID: mdl-28111337

ABSTRACT

BACKGROUND & AIMS: Even if patients with hemochromatosis maintain low serum levels of ferritin, they still have an increased risk of general and joint symptoms, which reduce quality of life. This could be related to persistently increased transferrin saturation. We assessed whether duration of exposure to increased transferrin saturation during maintenance therapy is associated with more severe general and joint symptoms. METHODS: We performed a longitudinal cohort study of 266 individuals homozygous for the C282Y substitution in HFE, seen at a tertiary reference center in Rennes, France, and followed for 3 or more years after initial iron removal. Serum ferritin and transferrin saturation were measured at the same time points; values were used to calculate duration of exposure to serum ferritin 50 µg/L or more (FRT50exp) and to determine transferrin saturation 50% or greater (SAT50exp). Clinical and biochemical follow-up data were recorded from log books completed during maintenance therapy. The primary outcome was change in general and joint symptoms, determined from answers to a self-administered questionnaire. RESULTS: Patients were followed for 13.5 ± 5.9 years. FRT50exp (3.2 ± 3.5 years) and SAT50exp (4.5 ± 3.4 years) values correlated (r = 0.38; P < .0001), but each associated with different variables in multivariate analysis. We found independent associations, regardless of follow-up time, between SAT50exp ≥6 years and worsened joint symptoms (odds ratio [OR], 4.19; 95% confidence interval [CI], 1.88-9.31), and between SAT50exp ≥6 years and decreased athletic ability (OR, 2.35; 95% CI, 1.16-4.73). SAT50exp ≥8 years associated independently with decreased work ability (OR, 3.20; 95% CI, 1.40-7.30) and decreased libido (OR, 3.49; 95% CI, 1.56-7.80). CONCLUSIONS: In a longitudinal study of patients treated for hemochromatosis, we associated duration of exposure to increased transferrin saturation (longer than 6 years) with more severe general and joint symptoms. Maintenance of serum levels of ferritin at 50 µg/L or less does not indicate control of transferrin saturation, so guidelines on the management of hemochromatosis require revision.


Subject(s)
Hemochromatosis Protein/genetics , Hemochromatosis/pathology , Serum/chemistry , Transferrin/analysis , Adolescent , Adult , Aged , Aged, 80 and over , Female , Ferritins/analysis , France , Hemochromatosis/genetics , Humans , Joints/pathology , Longitudinal Studies , Male , Middle Aged , Tertiary Care Centers , Time Factors , Treatment Outcome , Young Adult
15.
World J Gastroenterol ; 22(20): 4926-35, 2016 May 28.
Article in English | MEDLINE | ID: mdl-27239119

ABSTRACT

AIM: To evaluate the performance of elastography by ultrasound with acoustic radiation force impulse (ARFI) in determining fibrosis stage in patients with alcoholic liver disease (ALD) undergoing alcoholic detoxification in relation to biopsy. METHODS: Eighty-three patients with ALD undergoing detoxification were prospectively enrolled. Each patient underwent ARFI imaging and a liver biopsy on the same day. Fibrosis was staged according to the METAVIR scoring system. The median of 10 valid ARFI measurements was calculated for each patient. RESULTS: Sixty-nine males and thirteen females (one patient excluded due to insufficient biopsy size) were assessed with a mean alcohol consumption of 132.4 ± 128.8 standard drinks per week and mean cumulative year duration of 17.6 ± 9.5 years. Sensitivity and specificity were respectively 82.4% (0.70-0.95) and 83.3% (0.73-0.94) (AUROC = 0.87) for F ≥ 2 with a cut-off value of 1.63m/s; 82.4% (0.64-1.00) and 78.5% (0.69-0.89) (AUROC = 0.86) for F ≥ 3 with a cut-off value of 1.84m/s; and 92.3% (0.78-1.00] and 81.6% (0.72-0.90) (AUROC = 0.89) for F = 4 with a cut-off value of 1.94 m/s. CONCLUSION: ARFI is an accurate, non-invasive and easy method for assessing liver fibrosis in patients with ALD undergoing alcoholic detoxification.


Subject(s)
Elasticity Imaging Techniques , Liver Cirrhosis, Alcoholic/diagnostic imaging , Liver/diagnostic imaging , Adult , Area Under Curve , Biopsy , Female , Humans , Liver/pathology , Liver Cirrhosis, Alcoholic/pathology , Liver Cirrhosis, Alcoholic/therapy , Male , Middle Aged , Predictive Value of Tests , Prospective Studies , ROC Curve , Reproducibility of Results , Severity of Illness Index
16.
J Hepatol ; 62(3): 682-9, 2015 Mar.
Article in English | MEDLINE | ID: mdl-25450707

ABSTRACT

BACKGROUND & AIMS: Mortality studies in patients with hemochromatosis give conflicting results especially with respect to extrahepatic causes of death. Our objective was to assess mortality and causes of death in a cohort of patients homozygous for the C282Y mutation in the HFE gene, diagnosed since the availability of HFE testing. METHODS: We studied 1085 C282Y homozygotes, consecutively diagnosed from 1996 to 2009, and treated according to current recommendations. Mortality and causes of death were obtained from death certificates and compared to those of the general population. Standardized mortality ratios (SMRs) were used to assess specific causes of death and the Cox model was used to identify prognostic factors for death. RESULTS: Patients were followed for 8.3±3.9 years. Overall the SMR was the same as in the general population (0.94 CI: 0.71-1.22). Patients with serum ferritin⩾2000 µg/L had increased liver-related deaths (SMR: 23.9 CI: 13.9-38.2), especially due to hepatic cancer (SMR: 49.1 CI: 24.5-87.9). Patients with serum ferritin between normal and 1000 µg/L had a lower mortality than the general population (SMR: 0.27 CI: 0.1-0.5), due to a decreased mortality, related to reduced cardiovascular events and extrahepatic cancers in the absence of increased liver-related mortality. Age, diabetes, alcohol consumption, and hepatic fibrosis were independent prognostic factors of death. CONCLUSIONS: In treated HFE hemochromatosis, only patients with serum ferritin higher than 2000 µg/L have an increased mortality, mainly related to liver diseases. Those with mild iron burden have a decreased overall mortality in relation to reduced cardiovascular and extrahepatic cancer-related events. These results support a beneficial effect of early and sustained management of patients with iron excess, even when mild.


Subject(s)
Hemochromatosis/genetics , Hemochromatosis/mortality , Histocompatibility Antigens Class I/genetics , Membrane Proteins/genetics , Adult , Amino Acid Substitution , Cardiovascular Diseases/etiology , Cardiovascular Diseases/genetics , Cardiovascular Diseases/mortality , Cause of Death , Cohort Studies , Female , Ferritins/blood , France/epidemiology , Hemochromatosis/therapy , Hemochromatosis Protein , Homozygote , Humans , Kaplan-Meier Estimate , Male , Middle Aged , Neoplasms/etiology , Neoplasms/genetics , Neoplasms/mortality , Prognosis , Proportional Hazards Models , Prospective Studies , Transferrin/metabolism
17.
Liver Transpl ; 20(12): 1475-85, 2014 Dec.
Article in English | MEDLINE | ID: mdl-25267365

ABSTRACT

Primary hyperoxaluria type 1 (PH1) is a hepatic metabolic defect leading to end-stage renal failure. The posttransplant recurrence of kidney disease can suggest a need for combined liver-kidney transplantation (LKT). However, the risk of LKT is theoretically far higher than the risk of kidney-alone transplantation (KAT). An unselected consecutive series of 54 patients with PH1 was analyzed according to the type of transplantation initially performed between May 1979 and June 2010 at 10 French centers. The duration of dialysis, extrarenal lesions, age, and follow-up were similar between the groups. Postoperative morbidity and mortality did not differ between the groups, and 10-year patient survival rates were similar for the LKT (n = 33) and KAT groups (n = 21; 78% versus 70%). Kidney graft survival at 10 years was better after LKT (87% versus 13%, P < .001) . Four patients (12.1%) lost their first kidney graft in the LKT group, whereas 19 (90%) did in the KAT group (P < .001). The recurrence of oxalosis occurred in 11 renal grafts (52%) in the KAT group but in none in the LKT group (P < .001). End-stage renal failure resulting from rejection was also higher in the KAT group (19% versus 9%, P < 0.0001). A second kidney transplant was performed for 15 patients (71%) in the KAT group versus 4 patients (12%) in the LKT group (P < 0.001). In conclusion, LKT for PH1 provides better kidney graft survival, less rejection, and similar long-term patient survival and is not associated with an increased short-term mortality risk. LKT must be the first-line treatment for PH1 patients with end-stage renal disease.


Subject(s)
Hyperoxaluria, Primary/surgery , Kidney Transplantation , Liver Transplantation , Adolescent , Adult , Child , Child, Preschool , Female , Follow-Up Studies , France , Graft Survival , Humans , Hyperoxaluria/complications , Hyperoxaluria/surgery , Hyperoxaluria, Primary/mortality , Immunosuppressive Agents/therapeutic use , Infant , Kidney Failure, Chronic/surgery , Male , Middle Aged , Reoperation , Treatment Outcome , Young Adult
18.
Eur J Gastroenterol Hepatol ; 26(4): 418-21, 2014 Apr.
Article in English | MEDLINE | ID: mdl-24557330

ABSTRACT

BACKGROUND: Initial venesection therapy in dysmetabolic iron overload syndrome (DIOS) was shown to improve insulin resistance. However, no data are available on the long-term outcome of iron store, thus questioning the relevance of maintenance therapy. AIM: The aim of the study was to describe the long-term evolution of iron overload after successful iron removal in patients with DIOS. PATIENTS AND METHODS: Patients diagnosed with DIOS from 1998 to 2003 and having completed venesection therapy were proposed an outpatient visit in 2009. Inclusion criteria were as follows: confirmation of the DIOS diagnosis, absence of iron-related treatment or bloodletting since the end of the initial venesection treatment, at least 2 years of follow-up since last phlebotomy. Clinical and biological data were recorded at diagnosis and at inclusion. RESULTS: A total of 58 patients were included. The mean liver iron content at diagnosis was 80±43 µmol/g and the mean amount of iron removed was 2.2±1.2 g. The mean follow-up time was 71±23 months since end of treatment. At inclusion, 64% of patients had recurrence of iron overload. Serum ferritin at diagnosis was the only parameter associated with recurrence of iron overload. CONCLUSION: In patients with DIOS, the course of iron loading after initial iron removal supports periodical follow-up to detect those patients with recurrence of iron overload who could benefit from maintenance therapy.


Subject(s)
Iron Overload/therapy , Iron/blood , Liver/metabolism , Phlebotomy , Biomarkers/blood , Female , Ferritins/blood , Genetic Predisposition to Disease , Hemochromatosis Protein , Histocompatibility Antigens Class I/genetics , Humans , Iron Overload/blood , Iron Overload/diagnosis , Iron Overload/genetics , Male , Membrane Proteins/genetics , Middle Aged , Mutation , Phenotype , Recurrence , Retrospective Studies , Risk Factors , Time Factors , Treatment Outcome
19.
Eur J Gastroenterol Hepatol ; 25(11): 1321-9, 2013 Nov.
Article in English | MEDLINE | ID: mdl-23708276

ABSTRACT

BACKGROUND: The current phenotypic descriptors of high Fe gene hemochromatosis are hardly specific and time dependent in a context of highly variable expressivity. We hypothesized that the rate of iron removed during maintenance therapy and corresponding to the iron reabsorption index (IRI) could be patient specific and may then represent a new useful phenotypic marker. AIM: The present study aimed to describe IRI with respect to its phenotypic specificity and to its potential usefulness. METHODS: We studied a cohort of 316 p.Cys282Tyr homozygous patients with stable low serum ferritin levels on maintenance therapy for at least 12 months. Characteristics at diagnosis, date and volume of phlebotomies, and parameters of iron metabolism throughout maintenance therapy were determined. RESULTS: IRI ranged from 1.3 to 6.1 mg/day (median: 2.44). It was lower in women (difference: 1.26 mg/day), mainly explained by physiological blood loss, weight, and alcohol consumption. IRI was correlated to iron burden and fibrosis stage at diagnosis, was stable over time (variation: 11.5%), and depended on serum ferritin level during therapy. CONCLUSION: Its independence from disease duration, its stability, its wide distribution, and its significant correlation with iron burden markers make IRI a valuable potential phenotypic indicator of the daily iron overabsorption in hemochromatosis. Moreover, IRI provides a conceptual frame for empiric adaptation of maintenance therapy.


Subject(s)
Hemochromatosis/blood , Iron/blood , Adolescent , Adult , Aged , Amino Acid Substitution , Cohort Studies , Female , Ferritins/blood , Follow-Up Studies , Hemochromatosis/genetics , Hemochromatosis/physiopathology , Hemochromatosis/therapy , Hemochromatosis Protein , Hemoglobins/metabolism , Histocompatibility Antigens Class I/genetics , Humans , Male , Membrane Proteins/genetics , Middle Aged , Phenotype , Phlebotomy , Young Adult
20.
Hepatology ; 57(5): 1784-92, 2013 May.
Article in English | MEDLINE | ID: mdl-23322654

ABSTRACT

UNLABELLED: An excess of visceral adipose tissue could be involved as a modulator of the penetrance of HFE hemochromatosis since fat mass is associated with overexpression of hepcidin and low transferrin saturation was found to be associated with being overweight in women. This study was aimed at assessing the relationship between body mass index (BMI), a surrogate marker of insulin resistance, and iron burden in HFE hemochromatosis. In all, 877 patients from a cohort of C282Y homozygotes were included in the study when BMI at diagnosis and amount of iron removed (AIR) by phlebotomy were available. No relationship between AIR and BMI was found in men, whereas 15.1% (52/345) of women with AIR <6 g had BMI ≥28 versus 3.9% (2/51) of women with AIR ≥6 g (P = 0.03). At multivariate analysis, BMI was an independent factor negatively associated with AIR (odds ratio: 0.13; 95% confidence interval [CI]: 0.03-0.71) together with serum ferritin, serum transferrin, transferrin saturation, hemoglobin, and alanine aminotransferase. In a control group of 30 C282Y homozygous women, serum hepcidin was significantly higher in overweight (14.3 mmoL/L ± 7.1) than in lean (7.9 mmoL/L ± 4.3) women (P = 0.0005). CONCLUSION: In C282Y homozygous women, BMI ≥28 kg/m(2) is independently associated with a lower amount of iron removed by phlebotomy. BMI is likely a modulator factor of the phenotypic expression of C282Y homozygosity, likely through an increase of circulating levels of hepcidin.


Subject(s)
Antimicrobial Cationic Peptides/blood , Hemochromatosis/blood , Hemochromatosis/genetics , Histocompatibility Antigens Class I/genetics , Homozygote , Iron/blood , Membrane Proteins/genetics , Overweight/blood , Adult , Body Mass Index , Case-Control Studies , Cohort Studies , Comorbidity , Female , Ferritins/blood , Hemochromatosis/epidemiology , Hemochromatosis Protein , Hepcidins , Humans , Insulin Resistance/physiology , Male , Middle Aged , Multivariate Analysis , Overweight/epidemiology , Phlebotomy , Retrospective Studies , Transferrin/metabolism
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