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1.
Medicina (Kaunas) ; 57(7)2021 Jul 14.
Artigo em Inglês | MEDLINE | ID: mdl-34356993

RESUMO

Background and Objectives: Glycated hemoglobin (HbA1c) dosage is considered the gold standard in glycol-metabolic monitoring, but it presents limits, which can underestimate the glycemia trend. In this regard, it was introduced the glycated albumin (GA). The aim of the study is to verify the predictivity of the GA compared to HbA1c in identifying glyco-metabolic alterations in non-diabetic and diabetic hemodialysis (HD) patients. Materials and Methods: For this purpose, we conducted a multicenter study involving one analysis laboratory and six dialysis centers in the Lazio region (Rome, Italy). Both diabetic and non-diabetic HD patients represent the study population, and the protocol included five time points. Results: The analyzed data highlighted the ability of GA to predict changes in glycemic metabolism in HD patients, and GA values are not significantly influenced, like HbA1c, by dialysis therapy itself and by comorbidities of the uremic state, such as normochromic and normocytic anemia. Thus, GA seems to reflect early glyco-metabolic alterations, both in patients with a previous diagnosis of diabetes and in subjects without diabetes mellitus. As part of this study, we analyzed two HD patients (one diabetic and one non-diabetic) in which GA was more predictive of glycol-metabolic alterations compared to HbA1c. Our study confirms the need to compare classical biomarkers used for the monitoring of glyco-metabolic alterations with new ones, likely more reliable and effective in specific subgroups of patients in which the classic biomarkers can be influenced by the preexisting pathological conditions. Conclusions: In conclusion, our evidence highlights that in uremic patients, GA shows a better ability to predict glyco-metabolic alterations allowing both an earlier diagnosis of DM and a prompt modulation of the hypoglycemic therapy, thus improving the clinical management of these patients.


Assuntos
Diabetes Mellitus Tipo 2 , Biomarcadores , Glicemia , Diabetes Mellitus Tipo 2/complicações , Hemoglobinas Glicadas/análise , Produtos Finais de Glicação Avançada , Humanos , Diálise Renal , Albumina Sérica , Albumina Sérica Glicada
2.
J Nerv Ment Dis ; 208(9): 715-720, 2020 09.
Artigo em Inglês | MEDLINE | ID: mdl-32639411

RESUMO

Large-scale longitudinal studies show that specific borderline personality disorder (BPD) symptoms are more likely to remit over time, suggesting that clinical features of BPD may vary between younger patients and older ones. The objective of the present report is to provide a direct comparison between younger (age 18-25 years; n = 44) and older (age 40-59 years; n = 49) BPD patients on the nine DSM-4 BPD criteria (self-harm, emotional dysregulation, impulsiveness, and work and social functioning). Younger and older patients reported similar levels of impulsiveness, emotional dysregulation, and work and social functional impairment. Younger adults were more likely to show anger and self-damaging behaviors compared with older patients, which in turn were more likely to endorse chronic emptiness. In conclusion, older patients with BPD are still impaired in impulsiveness, emotional regulation, and social functioning; treatments for older BPD population should be long term and focused on emotion dysregulation and impulsive behaviors.


Assuntos
Transtorno da Personalidade Borderline/psicologia , Regulação Emocional , Comportamento Impulsivo , Adolescente , Adulto , Fatores Etários , Ira , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Funcionamento Psicossocial , Trabalho , Adulto Jovem
4.
Blood Purif ; 48(1): 60-66, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30712031

RESUMO

BACKGROUND: ACUsmart (Medica S.P.A., Italy) is a new-generation, continuous renal replacement therapy (CRRT) machine for critically ill patients with acute kidney injury. We designed a multicenter international pilot study to provide a description of outlines of the ACUsmart system, evaluation aspects of functionality, usability, and feasibility, discriminating reasons of possible treatment's withdrawals or discontinuations and highlighting strong and weak points of the machine. METHODS: Data of 23 CRRT (and 11 plasma exchange) treatments were collected from 4 intensive care units. Parameters such as treatment duration, downtime, delivered dose, and number and type of alarms were recorded. The general perception of the machine was quantified through the administration of a survey to each component of the evaluating staff. RESULTS: A total treatment time of 447 h was carried with ACUsmart. Eleven continuous veno-venous hemofiltration, 4 continuous veno-venous hemodialysis , and 8 continuous veno-venous hemodiafiltration were performed. The average percentage of net treatment duration with respect to total treatment duration was 92.37%. The mean prescribed dose and delivered dose were 26.33 and 24.10 mL/kg/h, respectively. In general, the machine was rated by users involved as practical and easy to use, although few components need to be slightly improved. CONCLUSION: ACUsmart is a new multifunctional machine that meets most of the features required in a fourth-generation CRRT equipment.


Assuntos
Injúria Renal Aguda/terapia , Estado Terminal/terapia , Terapia de Substituição Renal/instrumentação , Terapia de Substituição Renal/métodos , Humanos , Projetos Piloto , Terapia de Substituição Renal/efeitos adversos , Projetos de Pesquisa , Resultado do Tratamento , Interface Usuário-Computador
5.
Clin Psychol Psychother ; 25(2): 188-194, 2018 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-29024226

RESUMO

BACKGROUND: Anger and depressive ruminations have recently received empirical attention as processes related to borderline personality disorder (BPD). The Emotional Cascade Model (Selby, Anestis, & Joiner, 2008) suggests that negative affect (such as anger and sadness) may trigger rumination, which in turn may increase the duration and extent of negative affect, leading to dysregulated behaviours aimed at reducing such intense and unpleasant emotions. AIM: The aim of this study is to explore the relationships between emotional dysregulation, anger and depressive ruminations, and their role in predicting dysregulated behaviours (such as aggression and self-harm) in a clinical sample of patients with BPD. METHODS: Ninety-one patients with a diagnosis of BPD were recruited from three outpatient community mental health centres and asked to complete a comprehensive assessment for personality disorder symptoms, emotion dysregulation, anger and depressive ruminations, aggression, and self-harm. RESULTS: Anger and depressive ruminations were found to be significantly associated to, respectively, self-harm and aggression, beyond the variance accounted by emotional dysregulation. CONCLUSIONS: Rumination may act as a mediator between emotional dysregulation and dysregulated behaviours in BPD. Future research should examine whether clinical techniques aimed at reducing rumination may be helpful in reducing dysregulated behaviours in patients with BPD.


Assuntos
Ira , Transtorno da Personalidade Borderline/complicações , Transtorno da Personalidade Borderline/psicologia , Transtorno Depressivo/complicações , Transtorno Depressivo/psicologia , Ruminação Cognitiva , Adulto , Feminino , Humanos , Itália , Masculino , Psicometria
6.
Aggress Behav ; 43(5): 421-429, 2017 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-28229465

RESUMO

The metacognitive approach conceptualizes the relationship between anger and rumination as driven by metacognitive beliefs, which are information individuals hold about their own cognition and about coping strategies that impact on it. The present study aimed to test the prospective predictive impact of metacognitive beliefs and rumination on anger in a community sample. Seventy-six participants were recruited and engaged in a 2-week anger, rumination, and metacognitive beliefs monitoring protocol. A multi-wave panel design was employed to test whether metacognitive beliefs and rumination have a prospective impact on anger. Metacognitive beliefs and rumination were found to have a significant prospective impact on anger that was independent from the number of triggering events. Metacognitive beliefs about the need to control thoughts were shown to have a direct impact on subsequent anger, independently from rumination. These findings provide support for the potential value for applying metacognitive theory and therapy to anger-related problems. Aggr. Behav. 43:421-429, 2017. © 2017 Wiley Periodicals, Inc.


Assuntos
Ira/fisiologia , Metacognição/fisiologia , Ruminação Cognitiva/fisiologia , Adaptação Psicológica/fisiologia , Adulto , Cognição/fisiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Adulto Jovem
7.
Nephrol Dial Transplant ; 31(11): 1957-1965, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27604074

RESUMO

BACKGROUND: Kidney transplantation is the treatment of choice to restore fertility to women on renal replacement therapy. Over time, immunosuppressive, support therapies and approaches towards high-risk pregnancies have changed. The aim of this study was to analyse maternal-foetal outcomes in two cohorts of transplanted women who delivered a live-born baby in Italy in 1978-2013, dichotomized into delivery before and after January 2000. METHODS: A survey involving all the Italian transplant centres was carried out, gathering data on all pregnancies recorded since the start of activity at each centre; the estimated nationwide coverage was 75%. Data on cause of ESRD, dialysis, living/cadaveric transplantation, drug therapy, comorbidity, and the main maternal-foetal outcomes were recorded and reviewed. Data were compared with a low-risk cohort of pregnancies from two large Italian centres (2000-14; Torino and Cagliari Observational Study cohort). RESULTS: The database consists of 222 pregnancies with live-born babies after transplantation (83 before 2000 and 139 in 2000-13; 68 and 121 with baseline and birth data, respectively), and 1418 low-risk controls. The age of the patients significantly increased over time (1978-99: age 30.7 ± 3.7 versus 34.1 ± 3.7 in 2000-13; P < 0.001). Azathioprine, steroids and cyclosporine A were the main drugs employed in the first time period, while tacrolimus emerged in the second. The prevalence of early preterm babies increased from 13.4% in the first to 27.1% in the second period (P = 0.049), while late-preterm babies non-significantly decreased (38.8 versus 33.1%), thus leaving the prevalence of all preterm babies almost unchanged (52.2 and 60.2%; P = 0.372). Babies below the 5th percentile decreased over time (22.2 versus 9.6%; P = 0.036). In spite of high prematurity rates, no neonatal deaths occurred after 2000. The results in kidney transplant patients are significantly different from controls both considering all cases [preterm delivery: 57.3 versus 6.3%; early preterm: 22.2 versus 0.9%; small for gestational age (SGA): 14 versus 4.5%; P < 0.001] and considering only transplant patients with normal kidney function [preterm delivery: 35 versus 6.3%; early preterm: 10 versus 0.9%; SGA: 23.7 versus 4.5% (P < 0.001); risks increase across CKD stages]. Kidney function remained stable in most of the patients up to 6 months after delivery. Multiple regression analysis performed on the transplant cohort highlights a higher risk of preterm delivery in later CKD stages, an increase in preterm delivery and a decrease in SGA across periods. CONCLUSIONS: Pregnancy after transplantation has a higher risk of adverse outcomes compared with the general population. Over time, the incidence of SGA babies decreased while the incidence of 'early preterm' babies increased. Although acknowledging the differences in therapy (cyclosporine versus tacrolimus) and in maternal age (significantly increased), the decrease in SGA and the increase in prematurity may be explained by an obstetric policy favouring earlier delivery against the risk of foetal growth restriction.


Assuntos
Imunossupressores/uso terapêutico , Transplante de Rim , Complicações na Gravidez , Nascimento Prematuro/epidemiologia , Sistema de Registros , Adulto , Feminino , Humanos , Incidência , Recém-Nascido , Itália/epidemiologia , Gravidez , Resultado da Gravidez , Inquéritos e Questionários
8.
Eur Radiol ; 26(8): 2685-96, 2016 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26474987

RESUMO

OBJECTIVE: Prenatal features of isolated cerebellar haemorrhagic lesions have not been sufficiently characterised. We aimed to better define their MR imaging characteristics, documenting the location, extension, evolution stage and anatomic sequelae, and to better understand cerebellar haemorrhage pathophysiology. MATERIALS AND METHODS: We screened our foetal MR imaging database (3200 cases) for reports of haemorrhagic lesions affecting only the cerebellum (without any supratentorial bleeding or other clastic lesions), defined as one of the following: T2-weighted hypointense or mixed hypo-/hyperintense signal; rim of T2-weighted hypointense signal covering the surface of volume-reduced parenchyma; T1-weighted hyperintense signal; increased DWI signal. RESULTS: Seventeen cases corresponded to the selection criteria. All lesions occurred before the 26th week of gestation, with prevalent origin from the peripheral-caudal portion of the hemispheres and equal frequency of unilateral/bilateral involvement. The caudal vermis appeared affected in 2/3 of cases, not in all cases confirmed postnatally. Lesions evolved towards malformed cerebellar foliation. The aetiology and pathophysiology were unknown, although in a subset of cases intra- and extracranial venous engorgement seemed to play a key role. CONCLUSIONS: Onset from the peripheral and caudal portion of the hemispheres seems characteristic of prenatal cerebellar haemorrhagic lesions. Elective involvement of the peripheral germinal matrix is hypothesised. KEY POINTS: • The cerebellum can be vulnerable to bleeding during foetal development. • Isolated cerebellar haemorrhages can be seen on prenatal MRI. • In our cohort, isolated foetal cerebellar haemorrhages occurred before the 26th gestational week. • Haemorrhagic lesions happening in utero could look like malformations on post-natal MRI. • Venous engorgement could have a role in causing cerebellar haemorrhagic lesions.


Assuntos
Doenças Cerebelares/diagnóstico por imagem , Doenças Fetais/diagnóstico por imagem , Hemorragias Intracranianas/diagnóstico por imagem , Adolescente , Adulto , Imagem de Difusão por Ressonância Magnética , Feminino , Idade Gestacional , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Gravidez , Segundo Trimestre da Gravidez , Diagnóstico Pré-Natal , Estudos Retrospectivos
9.
Clin Nephrol ; 86(9): 147-53, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27487355

RESUMO

BACKGROUND: Autosomal dominant polycystic kidney disease (ADPKD) is the most common hereditary kidney disease. Studies have suggested a possible prognostic role of copeptin in determining the rate of progressive kidney function decline in ADPKD patients. However, it remains unresolved whether the changes in copeptin levels are specific for ADPKD or merely reflect a decline in glomerular filtration rate (GFR) regardless of the etiology of chronic kidney disease (CKD). METHODS: We performed a case-control study in ADPKD and non-ADPKD (control) patients. Patients were categorized based on the GFR-category (G-stage, KDIGO). We evaluated urea, creatinine, cystatin C, and copeptin in plasma and correlated these levels with estimated glomerular filtration rate (eGFR) (CKD-EPI). All p-values were two sided, and p < 0.05 was considered as statistically significant. RESULTS: We enrolled 112 ADPKD and 112 control patients. The median copeptin level was 10.72 (interquartile range (IQR) 5.21 - 26.21) pmol/L in the ADPKD group and 12.32 (IQR 4.47 - 30.73) pmol/L in the control group. The median copeptin level increased according to the G-stage in a progressive fashion and remained statistically significant across all G-stages and in both groups. Copeptin levels were not significantly different between ADPKD and control groups. We found a significant inverse correlation between copeptin level and eGFR (Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI)) in the ADPKD, r = -0.81 (p < 0.001), and in the control group, r = -0.76 (p < 0.001). CONCLUSIONS: Copeptin levels seem to be strongly correlated with renal function rather than the presence of ADPKD. Further prospective studies need to evaluate its role as a prognostic marker in the early stage of CKD for ADPKD progression.


Assuntos
Creatinina/sangue , Taxa de Filtração Glomerular/fisiologia , Glicopeptídeos/sangue , Rim/fisiopatologia , Rim Policístico Autossômico Dominante/sangue , Adulto , Idoso , Biomarcadores/sangue , Estudos de Casos e Controles , Progressão da Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Rim Policístico Autossômico Dominante/fisiopatologia , Prognóstico , Estudos Prospectivos
10.
Blood Purif ; 42(4): 307-313, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27694753

RESUMO

AIMS: The study aimed to determine whether the available literature supports a positive or negative influence of dialysis on regulatory T-cells (Tregs). METHODS: We performed a systematic search and a meta-analysis. Mean differences in Tregs number of chronic kidney disease stages G5 on dialysis patients (CKD G5D) and healthy controls (HCs) were compared. Random effects model was applied. The software used was general package for meta-analysis (version 4.3-0, depends R (≥2.9.1)). RESULTS: Five studies were included in the meta-analysis. The mean difference in percentage of Tregs on CD4+ T-cells between CKD G5D and HCs was not statistically different. Moreover, CKD GFR stages G5 not on dialysis (CKD G5) versus HC (p = 0.002; mean difference in Treg percentage was -2.47% in CKD G5 vs. HC) and CKD G5 versus CKD G5D (not significant). CONCLUSION: This meta-analysis demonstrates an association between the uremic state and lower Tregs, and supports the hypothesis that hemodialysis alter Tregs. Our findings highlight the need for new clinical studies. Video Journal Club 'Cappuccino with Claudio Ronco' at http://www.karger.com/?doi=449242.


Assuntos
Diálise Renal , Insuficiência Renal Crônica , Humanos
11.
J Clin Lab Anal ; 29(1): 57-60, 2015 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-24687307

RESUMO

BACKGROUND: Glycated hemoglobin (HbA1c) provides a useful estimate of mean glycemia in patients with diabetes and is directly related to risks for diabetes complications. The aim of this study is to compare a capillary electrophoresis method and two high-performance liquid chromatography (HPLC) cation-exchange analyzers (Variant II (Bio-Rad Laboratories, Inc., Hercules, CA) and G8 (Tosoh Biosciences, San Francisco, CA)) to identify the most reliable method in Hb variants' presence. METHODS: Measurements of HbA1c were carried out in blood samples from 200 Tor Vergata Hospital patients, using G8 Tosoh, and from 107 San Filippo Neri Hospital patients, using Variant II Bio-Rad methods. All samples were analyzed by Capillarys 2 Flex Piercing (FP; Sebia, Lisses, France). RESULTS: There was a good concordance between the results of capillary electrophoresis and HPLC methods (R(2) = 0.99, P < 0.0001 for G8 HPLC; R(2) = 0.99, P < 0.0001 for Variant II HPLC). During the study, we observed that some Hb variants, HbS and HbD-Iran, can alter the HbA1c level. CONCLUSIONS: Since the HbA1c test is now recommended for diagnosing diabetes, and minimal variation of the concentration affects the clinical therapy, it is very important that the results are reliable and interference-free. Capillarys 2-FP analyzer is suitable for this purpose and sometimes it showed some advantages with respect to the HPLC analyzers tested, especially when Hb variants are present.


Assuntos
Cromatografia Líquida de Alta Pressão , Diabetes Mellitus/sangue , Eletroforese Capilar , Hemoglobinas Glicadas/análise , Hemoglobina Falciforme , Feminino , Hemoglobina Falciforme/genética , Humanos , Masculino , Reprodutibilidade dos Testes , Estatística como Assunto
12.
Blood Purif ; 37(3): 238-42, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24943906

RESUMO

BACKGROUND: Achievement of euvolemia is a fundamental challenge in the peritoneal dialysis (PD) population. Bioimpedance spectroscopy (BIS) is one of the best techniques for routine assessment of hydration status (HS) in PD, but in recent years, the role of brain natriuretic peptides (BNP) in the assessment of volume status has gained interest. The aim of this study was to investigate the relation between BNP and volume status as measured by BIS in PD patients and to assess how these variables correlate according to the time that a patient has been on PD. METHODS: We prospectively studied 68 PD patients from whom measurements of BNP and assessments of HS by BIS were performed every 3 months. Three groups were defined based on HS: group A, measurements of HS <-1.1 liters (underhydrated); group B, measurements of HS between -1.1 and +1.1 liters (normohydrated), and group C, measurements of HS >+1.1 liters (overhydrated). Measurements were also separated according to the time on PD (<6 vs. ≥6 months). Correlation between HS and BNP was performed using Spearman's correlation. RESULTS: We performed a total of 478 measurements of HS and BNP. There was a statistically significant difference in BNP (p < 0.001) among three HS groups, with higher levels of BNP detected in overhydrated patients. We found a positive correlation between HS and BNP (rs = 0.28; p <0.001) that seemed stronger in the first 6 months on PD (rs = 0.42; p = 0.006). CONCLUSIONS: BNP correlated positively with fluid overload measured by HS, and this correlation was stronger in the first 6 months on PD.


Assuntos
Desidratação/sangue , Peptídeo Natriurético Encefálico/sangue , Diálise Peritoneal/efeitos adversos , Adulto , Idoso , Biomarcadores/sangue , Desidratação/etiologia , Desidratação/prevenção & controle , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
13.
Blood Purif ; 37(4): 286-90, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25133487

RESUMO

BACKGROUND: Peritoneal dialysis (PD) is a home therapy, and technique survival is related to the adherence to PD prescription at home. The presence of a home visit program could improve PD outcomes. We evaluated its effects on clinical outcome during 1 year of follow-up. METHODS: This was a case-control study. The case group included all 96 patients who performed PD in our center on January 1, 2013, and who attended a home visit program; the control group included all 92 patients who performed PD on January 1, 2008. The home visit program consisted of several additional visits to reinforce patients' confidence in PD management in their own environment. Outcomes were defined as technique failure, peritonitis episode, and hospitalization. Clinical and dialysis features were evaluated for each patient. RESULTS: The case group was significantly older (p = 0.048), with a lower grade of autonomy (p = 0.033), but a better hemoglobin level (p = 0.02) than the control group. During the observational period, we had 11 episodes of technique failure. We found a significant reduction in the rate of technique failure in the case group (p = 0.004). Furthermore, survival analysis showed a significant extension of PD treatment in the patients supported by the home visit program (52 vs. 48.8 weeks, p = 0.018). We did not find any difference between the two groups in terms of peritonitis and hospitalization rate; however, trends toward a reduction of Gram-positive peritonitis rates as well as prevalence and duration of hospitalization related to PD problems were identified in the case group. The retrospective nature of the analysis was a limitation of this study. CONCLUSION: The home visit program improves the survival of PD patients and could reduce the rate of Gram-positive peritonitis and hospitalization. Video Journal Club "Cappuccino with Claudio Ronco" at http://www.karger.com/?doi=365168.


Assuntos
Hemodiálise no Domicílio , Visita Domiciliar , Diálise Peritoneal , Resultado do Tratamento , Idoso , Estudos de Casos e Controles , Feminino , Seguimentos , Humanos , Falência Renal Crônica/complicações , Falência Renal Crônica/etiologia , Falência Renal Crônica/mortalidade , Falência Renal Crônica/terapia , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Análise de Sobrevida
14.
J Clin Med ; 13(4)2024 Feb 18.
Artigo em Inglês | MEDLINE | ID: mdl-38398457

RESUMO

BACKGROUND: We conducted a retrospective epidemiological study about the prevalence of stage 5 chronic kidney disease (CKD) in a high-income district, comparing some demographic characteristics and outcomes of those patients who had nephrological consultations and those who had not. RESULTS: In a district of 400,000 adult subjects in 2020, 925 patients had an estimated glomerular filtration rate (eGFR) under 15 mL/min and CKD. In the same period, 747 (80.4%) patients were assessed by nephrologists, while 178 (19.6%) were not. Age (88 vs. 75, p < 0.0001), female gender (66.3% vs. 47%, p < 0.001), and eGFR (12 vs. 9 mL/min, p < 0.001) were significantly different in the patients assessed by a nephrologist as compared those who did not have nephrological care. Furthermore, unfollowed CKD patients had a significantly higher death rate, 83.1% versus 14.3% (p < 0.0001). CONCLUSIONS: About 20% of ESKD patients did not receive a nephrologist consultation. Older people and women were more likely not to be referred to nephrology clinics. Unfollowed patients with stage 5 CKD had a significantly higher death rate.

15.
J Clin Med ; 13(2)2024 Jan 17.
Artigo em Inglês | MEDLINE | ID: mdl-38256658

RESUMO

In the evolving landscape of nephrology and kidney transplants, assessing renal functional reserve (RFR) in living kidney donors is essential for ensuring donor safety and successful transplantation. This study explores the use of the Intra-Parenchymal Renal Resistive Index Variation (IRRIV) test, a novel non-invasive method, to measure RFR in living donors. Our observational study included 11 participants undergoing living kidney donations, evaluated using the IRRIV-based Renal Stress Test (RST) before and 12 months post-nephrectomy. The study demonstrated significant changes in creatinine and eGFR CKD-EPI levels post-donation, with an average creatinine rise from 69 to 97 µmol/L and a reduction in eGFR from 104 to 66 mL/min/1.73 m2. These variations align with the expected halving of nephron mass post-nephrectomy and the consequent recruitment of RFR and hyperfiltration in the remaining nephrons. This pilot study suggests that the IRRIV-based RST is a practical, safe, and reproducible tool, potentially revolutionizing the assessment of RFR in living kidney donors, with implications for broader clinical practice in donor eligibility evaluation, even in borderline renal cases. Furthermore, it confirms the feasibility of RST in living kidney donors and allows us to assess the sample size in 48 donors for a future study.

16.
Nutrients ; 16(10)2024 May 16.
Artigo em Inglês | MEDLINE | ID: mdl-38794736

RESUMO

INTRODUCTION: Chronic kidney disease is a degenerative and increasingly prevalent condition that includes metabolic abnormalities and is associated with a higher risk of sarcopenia. The conservative approach points primarily to controlling metabolic issues and reducing the risk of malnutrition and sarcopenia, slowing the progression of kidney disease. The present study aims to evaluate the effect of a low-protein diet on malnutrition and sarcopenia. METHODS: A total of 45 patients (33 male and 12 female) aged over 70 with chronic kidney disease stage 4-5 in conservative management were considered. All patients had a dietary assessment and prescription of personalized low-protein dietary plans (≤0.6 g protein/kg) and a follow-up control between 4 and 6 months. In preliminary and follow-up evaluations, anthropometric data, blood examinations, body composition results, muscle strength, physical performance, and a 3-day food diary were collected. RESULTS: In the follow-up period, a significant weight loss (p = 0.001) and a decrease in body mass index (p = 0.002) were recorded. Food diaries revealed a significant reduction in protein, sodium, potassium, and phosphorus intake (p < 0.001), with a significant reduction in urea (p < 0.001) and proteinuria (p = 0.01) without any impact on lean mass (p = 0.66). Considerable variations in adherence between food diaries and the prescribed diet were also noted. CONCLUSIONS: Providing a personalized low-protein diet led to significant benefits in a short period without worsening the patient's nutritional status.


Assuntos
Dieta com Restrição de Proteínas , Insuficiência Renal Crônica , Sarcopenia , Humanos , Masculino , Feminino , Insuficiência Renal Crônica/dietoterapia , Insuficiência Renal Crônica/terapia , Idoso , Sarcopenia/dietoterapia , Dieta com Restrição de Proteínas/métodos , Idoso de 80 Anos ou mais , Tratamento Conservador/métodos , Índice de Massa Corporal , Composição Corporal , Estado Nutricional , Desnutrição/dietoterapia , Força Muscular , Redução de Peso
17.
Pharmacogenet Genomics ; 23(6): 293-300, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23524664

RESUMO

OBJECTIVE: The aim of this study was to assess the potential impact of the pharmacogenetic variability of CYP2B6 and ABCB1 genes on the pharmacokinetics of mitotane. METHODS: A retrospective analysis was carried out on 27 patients with adrenocortical carcinoma on postoperative adjunctive mitotane. CYP2B6 and ABCB1 polymorphisms were genotyped and tested for an association with plasma trough concentration after 3, 6, 9, and 12 months of therapy. RESULTS: Patients with the GT/TT genotype had higher mitotane plasma concentrations compared with patients with GG at 3 months (14.80 vs. 8.01 µg/ml; P=0.008) and 6 months (17.70 vs. 9.75 µg/ml; P=0.015). Multivariate logistic regression analysis showed that only the CYP2B6 rs3745274GT/TT genotype (odds ratio=10.7; P=0.017) was a predictor of mitotane plasma concentrations of at least 14 µg/ml after 3 months of treatment. Mitotane concentrations were not influenced by the polymorphisms of the ABCB1 gene. CONCLUSION: Evaluation of the CYP2B6 polymorphism enabled prediction of the individual response to adjuvant mitotane treatment.


Assuntos
Hidrocarboneto de Aril Hidroxilases/genética , Mitotano/farmacocinética , Polimorfismo de Nucleotídeo Único/genética , Subfamília B de Transportador de Cassetes de Ligação de ATP , Membro 1 da Subfamília B de Cassetes de Ligação de ATP/genética , Neoplasias do Córtex Suprarrenal/sangue , Neoplasias do Córtex Suprarrenal/tratamento farmacológico , Neoplasias do Córtex Suprarrenal/enzimologia , Neoplasias do Córtex Suprarrenal/genética , Adulto , Citocromo P-450 CYP2B6 , Relação Dose-Resposta a Droga , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Mitotano/administração & dosagem , Mitotano/sangue , Mitotano/uso terapêutico , Análise Multivariada
18.
Calcif Tissue Int ; 92(5): 437-43, 2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23334353

RESUMO

We report the prevalence of osteoporosis, osteopenia, and fractures in a cohort of Italian women randomly recruited among the general population and validate the use of clinical guidelines in referring women for bone density testing. We enrolled in the study 995 healthy women (age range 45-92 years). A bone density test at the lumbar spine and femur was performed and a questionnaire on osteoporosis risk factors completed for all patients. The prevalence of osteoporosis was 33.67 %, that of osteopenia was 46.63, and 19.7 % were normal at bone density testing. Osteoporotic women were generally older and thinner, with a shorter period of estrogen exposure. The prevalence of fractures was 21.9 %, and fractured women had a lower bone density, were older, and had a longer postmenopausal period. Clinical guidelines for referring women for bone density testing performed poorly (the best performance was 68 %). This is the first study providing data on the prevalence of osteoporosis/osteopenia and of fractures in a cohort of healthy postmenopausal women. Known risk factors influence bone density and risk of fractures. The role of screening in detecting women with postmenopausal osteoporosis is far from optimal.


Assuntos
Densidade Óssea , Doenças Ósseas Metabólicas/patologia , Osso e Ossos/patologia , Densitometria/métodos , Osteoporose Pós-Menopausa/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Tomada de Decisões , Sistemas de Apoio a Decisões Clínicas , Estrogênios/metabolismo , Feminino , Humanos , Itália/epidemiologia , Pessoa de Meia-Idade , Prevalência , Encaminhamento e Consulta , Fatores de Risco
19.
Hum Vaccin Immunother ; 19(3): 2286689, 2023 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-38010087

RESUMO

Varicella Zoster Virus (VZV) infection is a common childhood exanthematous disease, which in adults and immunocompromised people may result in severe neurologic complications. Up to one-third of infected subjects may have VZV clinical reactivation particularly if immunocompromised. Patients affected by end-stage renal disease on hemodialysis present immunodepression that contributes to their higher incidence of VZV infections and reactivation. While antiviral treatment in these patients shows low efficacy, the prevention of VZV through vaccination avoids the primary infection and the risk of reactivation. Two VZV vaccines are currently available: the live attenuate Zoster Vaccine (LZV) and a Recombinant Zoster Vaccine (RZV), with the latter appearing to provide greater efficacy. Given the higher incidence of VZV infection and reactivation, the lesser response to antivirals and the lower impact of VZ vaccine in hemodialysis patients in terms of side effects, a higher diffusion of VZV vaccination should be promoted by nephrologists in these patients in particular in those with future transplant opportunities.


Assuntos
Varicela , Vacina contra Herpes Zoster , Herpes Zoster , Falência Renal Crônica , Criança , Humanos , Varicela/prevenção & controle , Herpes Zoster/prevenção & controle , Vacina contra Herpes Zoster/administração & dosagem , Herpesvirus Humano 3 , Diálise Renal/efeitos adversos , Vacinação , Falência Renal Crônica/terapia
20.
J Clin Med ; 13(1)2023 Dec 21.
Artigo em Inglês | MEDLINE | ID: mdl-38202048

RESUMO

In the last few decades, the aging of the general population has significantly increased the number of elderly patients with end-stage kidney disease (ESKD) who require renal replacement therapy. ESKD elders are often frail and highly comorbid with social issues and seem to not benefit from dialysis in terms of survival and quality of life. Conservative management (CM) could represent a valid treatment option, allowing them to live for months to years with a modest impact on their habits. Despite these possible advantages, CM remains underused due to the myth of dialysis as the only effective treatment option for all ESKD patients regardless of its impact on quality of life and survival. Both CM and dialysis remain valid alternatives in the management of ESKD. However, assessing comorbidities, disabilities, and social context should drive the choice of the best possible treatment for ESKD, while in elderly patients with short life expectancies, referring them to palliative care seems the most reasonable choice.

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