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1.
J Endocrinol Invest ; 2024 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-38358463

RESUMO

PURPOSE: The differential diagnosis of lipodystrophy involves other disorders characterized by severe fat loss and may be sometimes challenging. Owing to the rarity of lipodystrophy, it is relevant to search for tools and assays that differentiate it from other diseases that may mimic it. We conducted a study on leptin and high molecular weight (HMW) adiponectin serum concentrations in a series of patients diagnosed with lipodystrophy and compared them with those found in anorexia nervosa, one of the illnesses that may be cause of a missed diagnosis of lipodystrophy. METHODS: Leptin and HMW adiponectin serum concentrations were measured in six patients diagnosed with generalized lipodystrophy (GL), six with progeroid syndromes (PS), 13 with familial partial lipodystrophy type 1 (FPLD1, Kobberling syndrome), 10 with familial partial lipodystrophy type 2 (FPLD2, Dunnigan syndrome), 18 with acquired partial lipodystrophy (APL) and 12 affected by anorexia nervosa (AN). Measurements were compared to those obtained in 12 normal weight healthy subjects. RESULTS: Serum leptin concentrations were reduced to a similar degree in GL, PS and AN, proportionally to the extent of fat loss. Serum concentrations of HMW adiponectin were found extremely low in patients with GL and PS, while comparable to normal weight subjects in patients with AN. CONCLUSION: Serum HMW adiponectin can be regarded as a useful tool to discriminate between generalized lipodystrophy syndromes (including PS) and AN.

2.
J Endocrinol Invest ; 47(2): 345-356, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37466810

RESUMO

PURPOSE: This study aimed to assess the real-world management of achondroplasia in Italy. METHODS: Two online surveys addressed to (1) parents/caregivers of individuals with achondroplasia and (2) Italian clinicians managing individuals with achondroplasia were conducted to assess real-world perspectives on achondroplasia management. Both surveys collected data on either patient or clinician demographics, details on diagnoses and referrals, disease complications, and views/experiences with limb lengthening surgery. RESULTS: In total, 42 parents/caregivers and 19 clinicians (from 18 hospitals) completed the surveys. According to parents/caregivers, achondroplasia diagnosis was most commonly made in the third trimester of gestation (55% of respondents), with a genetic test performed to confirm the diagnosis in all but one case. In contrast, the clinicians indicated that, while achondroplasia was typically suspected during the prenatal period (78%), diagnosis was more frequently confirmed postnatally (72%). Parents/caregivers reported that the greatest impact of achondroplasia-related complications occurred in their children between the ages of 2-5 years. The most significant complications were otitis, sleep apnoea, stenosis of the foramen magnum or pressure on the spinal cord, and hearing difficulties. Lengthening surgery had been presented as a treatment option to 92% of responding parents/caregivers, with 76% of clinicians viewing surgery favourably. Typically, clinicians' reasons for suggesting limb lengthening surgery were to improve patient quality of life, increase patient autonomy and self-acceptance, improve trunk-limb disproportion, short stature and walking, and ensure that all possible treatment options had been presented to the parents/caregivers. CONCLUSION: This survey provides insight into the real-world management of individuals with achondroplasia in Italy.


Assuntos
Acondroplasia , Qualidade de Vida , Criança , Humanos , Pré-Escolar , Cuidadores , Acondroplasia/diagnóstico , Acondroplasia/epidemiologia , Acondroplasia/terapia , Inquéritos e Questionários , Pais
3.
J Endocrinol Invest ; 2023 Nov 22.
Artigo em Inglês | MEDLINE | ID: mdl-37991698

RESUMO

OBJECTIVE: FGF23 measurement may have a diagnostic role to investigate patients with phosphate disorders. However, normal values for infants, children, and adolescents have not been defined. METHODS: In a total of 282 (males 145, females 137) healthy infants (n = 30), prepubertal (n = 147), pubertal (n = 59), and postpubertal (n = 46), and in twenty patients with X-linked hypophosphatemic rickets (XLH, age 10.2 ± 5.6 years) serum phosphate (automated analyzer), and plasma intact FGF23 (immunochemiluminescent sandwich assay, DiaSorin) concentrations were measured. RESULTS: Intact FGF23 concentrations were higher in healthy infants than in prepubertal (P < 0.01) and postpubertal subjects (P < 0.05); pubertal subjects showed higher values (P < 0.05) than postpubertal subjects. Serum phosphate concentrations were higher (P < 0.001) in healthy infants than in prepubertal, pubertal, and postpubertal subjects. Pubertal subjects had higher (P < 0.001) serum phosphate concentrations than postpubertal subjects. Intact FGF23 and serum phosphate concentrations did not differ (P = NS) by sex, age of menarche, and time after menarche. In healthy subjects, there was no correlation between intact FGF23 and serum phosphate concentrations. Intact FGF23 concentrations were higher (P < 0.0001) in patients with XLH than in healthy subjects according to chronological age and pubertal development. In all patients, intact FGF23 concentrations were above 40 pg/mL; intact FGF23 concentrations were inversely correlated with serum phosphate concentrations (r = -0.65; P < 0.01). CONCLUSION: In healthy subjects, chronological age and puberty were main determinants of intact FGF23 concentrations. Intact FGF23 concentrations may be a useful marker for the early diagnosis of XLH in pediatric patients.

5.
J Neurooncol ; 157(3): 551-559, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35397759

RESUMO

PURPOSE: Lacosamide (LCM) is a third-generation anti-seizure medication (ASM) approved for focal onset epilepsy in patients aged ≥ 4.378 Previous studies have reported an efficacy of LCM as add-on treatment in brain tumor-related epilepsy (BTRE). To date, there are no studies in the literature focusing on lacosamide used in monotherapy to treat BTRE. In our retrospective study we investigated efficacy and tolerability of LCM in monotherapy in a multicenter national cohort of primary brain tumor patients. METHODS: We collected from 12 Italian Centers 132 patients with primary brain tumors who were treated with LCM in monotherapy. For each patient we evaluated seizure freedom at 3 and 6 months (primary endpoints), side effects and drop-out rate (secondary endpoints). RESULTS: Overall, LCM led to seizure freedom in 64.4% of patients at 3 months and 55% at 6 months. Patients who used two or more ASMs before LCM had a worse seizure control than patients in monotherapy with LCM as first choice. In 14 patients, we observed seizure control despite tumor progression on magnetic resonance (MRI). Multivariate analysis showed that gross-total resection at diagnosis was significantly associated with higher seizure freedom rate at 6 months. Side effects were mainly mild (grade 1-2 according to CTCAE classification) and drop-out rate was low (1.5%). Main side effects were dizziness and somnolence. CONCLUSIONS: This is the first study showing a good efficacy and tolerability of LCM when used in monotherapy in BTRE. Further prospective studies are needed to confirm these preliminary data, investigating also quality of life and neurocognitive functions.


Assuntos
Neoplasias Encefálicas , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Epilepsias Parciais , Epilepsia , Acetamidas , Anticonvulsivantes/uso terapêutico , Neoplasias Encefálicas/complicações , Neoplasias Encefálicas/tratamento farmacológico , Epilepsias Parciais/complicações , Epilepsias Parciais/tratamento farmacológico , Epilepsia/complicações , Epilepsia/etiologia , Humanos , Lacosamida/uso terapêutico , Qualidade de Vida , Estudos Retrospectivos , Convulsões/tratamento farmacológico , Resultado do Tratamento
6.
J Endocrinol Invest ; 44(1): 145-151, 2021 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-32378143

RESUMO

PURPOSE: 46, XY disorders (or differences) of sex development (DSD) are a group of clinical conditions with variable genetic background; correct diagnosis is often difficult, but it permits to optimize the management. The aim of this study is to identify clinical and genetics features of a group of women with 46, XY DSD to define some issues characterizing people with 46, XY DSD in Italy. METHODS: Retrospective analysis of girls and women with 46, XY DSD and female phenotype evaluated between year 2000 and 2016, performed by anonymised database, focusing on the clinical features and management, including presentation, first diagnostic suspect, gonadal surgery and molecular diagnostic delay. RESULTS: A total of 84 records were collected (mean age at clinical presentation: 9.1 ± 7.9 years; mean age at definitive diagnosis: 20.1 ± 15.0 years). Complete androgen insensitivity syndrome was the most common diagnosis (60%). Only 12 patients (14.3%) did not receive a molecular diagnosis. Early misdiagnoses frequently occurred; diagnostic delay was 10.2 ± 11.2 years, being reduced in patients presenting from 2007 to 2016. The discordance between genotypic and phenotypic sex during pregnancy or at birth determined early reason for referral in a considerable percentage (4.9%). CONCLUSION: Misdiagnosis and long diagnostic delays are present in females with 46, XY DSD in Italy, but the new genetic techniques permit faster right diagnoses in the last years. The centralization in dedicated third level units permits to reduce the number of patients without a molecular diagnosis, allowing better clinical management and appropriate genetic counselling.


Assuntos
Transtornos do Desenvolvimento Sexual/diagnóstico , Gônadas/patologia , Adulto , Criança , Transtornos do Desenvolvimento Sexual/genética , Feminino , Seguimentos , Gônadas/metabolismo , Humanos , Cariótipo , Fenótipo , Prognóstico , Estudos Retrospectivos , Adulto Jovem
7.
J Endocrinol Invest ; 44(2): 321-326, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32474765

RESUMO

PURPOSE: To meet clinicians' request for adequate results and reliable reference ranges for testosterone, this study was planned with the aims (i) to verify the reliability of the reference interval for total testosterone (TT) declared by immunoassay manufacturer and adopted by laboratory, (ii) to compare results for serum TT obtained by immunoassay and LC-MS/MS and (iii) to verify if the cutoff values for low TT and measured free testosterone (FT), defined by Endocrine Society Guidelines for diagnosis of hypogonadism, are applicable to our study group. METHODS: Sera from anonymous young/middle-aged male blood donors were selected for the study. TT was measured by immunoassay and LC-MS/MS. SHBG was measured by immunoassay and used with albumin concentration to calculate FT according to Vermeulen's formula. RESULTS: The reference interval declared by the manufacturer and adopted by the lab was validated. The two methods for TT evaluation correlated very well. TT and FT lower limits at 5th and 2.5th percentile are below the cutoffs reported in the literature for the diagnosis of hypogonadism. CONCLUSIONS: The immunoassay currently used in our lab can be considered an adequate tool for TT, but it's essential that clinical data agree with the biochemical ones, particularly in the presence of TT values between the lower limit of reference range and the cutoff values recommended by scientific societies.


Assuntos
Biomarcadores/sangue , Doadores de Sangue , Hipogonadismo/diagnóstico , Imunoensaio/métodos , Espectrometria de Massas em Tandem/métodos , Testosterona/sangue , Adulto , Voluntários Saudáveis , Humanos , Hipogonadismo/sangue , Masculino , Pessoa de Meia-Idade , Prognóstico , Valores de Referência
8.
Gynecol Endocrinol ; 36(10): 938-940, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-33021135

RESUMO

Objective: To understand the origin of extremely high gonadotropin levels in a perimenopausal woman.Methods: A 52-year-old woman with a 2 months of amenorrhea followed spontaneous menstrual cycles recovery was referred to our outpatient clinic with elevated follicle-stimulating hormone (FSH, 483 mUI/ml), luteinizing hormone (LH, 475 mUI/ml) and prolactin (PRL, 173 ng/ml). She was known to take levosulpiride. The gonadotropin levels did not fit with the clinical features.Results: A gonadotroph tumor was ruled out. Further analysis confirmed constantly high FSH, LH and PRL levels. The measurements were repeated using different analytical platforms with different results. After serial dilutions, nonlinearity was present suggesting an immunoassay interference. After post-polyethylene glycol recovery, hormone levels appeared in the normal range. Anti-goat antibodies were recognized in the serum of the patient.Conclusions: This case report shows a case of falsely abnormal high gonadotropin and PRL levels in a woman during menopause transition. In the clinical practice the evaluation of gonadotropin profile is not recommended at this age, but the abnormal levels stimulated further evaluation. An interference in the assay due to anti-goat antibodies resulted in abnormally high level of FSH and LH. A strict collaboration between clinicians and the laboratory is needed, when laboratory findings do not correspond to clinical findings.


Assuntos
Anticorpos Heterófilos , Erros de Diagnóstico , Gonadotropinas/sangue , Menopausa/sangue , Animais , Feminino , Cabras/imunologia , Humanos , Pessoa de Meia-Idade
10.
J Endocrinol Invest ; 42(11): 1299-1305, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31012054

RESUMO

PURPOSE: One of the best indicators of adrenal gland dysfunction is the level of free cortisol measured in the 24-h urine (UFC) which faithfully reflects the level of biologically active serum cortisol not subjected to circadian variations. Liquid chromatography coupled with tandem mass spectrometry (LC-MS-MS) is a sensitive, accurate and precise method recently available in routine laboratories that could remedy interference problems of immunoassays. METHODS: In this study, a literature reference range for UFC measured by LC-MS-MS was verified, and UFC values measured by LC-MS-MS and immunoassay were compared. Immunometric UFC measurement was performed by ACCESS CORTISOL assay without preliminary extraction, using Beckman Coulter UniCel DxI 600 highly automated platform. Liquid chromatography-tandem mass spectrometry UFC measurement was performed by a home-made validated method using cortisol-D4 as internal standard with preliminary deproteinization of urinary samples by centrifugal filter and injection on reverse-phase column. Cortisol was analyzed in positive ion mode with an ESI interface. RESULTS: The reference interval from literature (11-70 µg/day) was confirmed by results obtained for healthy study group. Comparison study of the two methods highlighted a constant and proportional systematic error with a general tendency to overestimate results for the in-use method. CONCLUSIONS: In conclusion, the direct immunometric method overestimates UFC results with respect to liquid chromatography-tandem mass spectrometry which represents the reference method. The literature reference range 11-70 µg/day was confirmed and can be adopted by our lab that will shift all UFC tests performed in routine to the mass spectrometry-based method, satisfying clinicians' request.


Assuntos
Cromatografia Líquida/métodos , Hidrocortisona/urina , Imunoensaio/métodos , Espectrometria de Massas em Tandem/métodos , Adolescente , Adulto , Idoso , Feminino , Voluntários Saudáveis , Humanos , Masculino , Pessoa de Meia-Idade , Valores de Referência , Adulto Jovem
11.
Pharmacogenomics J ; 18(3): 422-430, 2018 05 22.
Artigo em Inglês | MEDLINE | ID: mdl-28719598

RESUMO

We investigated in ninety Caucasian pediatric patients the impact of the main polymorphisms occurring in CYP3A, CYP2D6, ABCB1 and ABCG2 genes on second-generation antipsychotics plasma concentrations, and their association with the occurrence of adverse drug reactions. Patients with the CA/AA ABCG2 genotype had a statistically significant lower risperidone plasma concentration/dose ratio (Ct/ds) (P-value: 0.007) and an higher estimated marginal probability of developing metabolism and nutrition disorders as compared to the ABCG2 c.421 non-CA/AA genotypes (P-value: 0.008). Multivariate analysis revealed that the ABCG2 c.421 CA/AA genotype was found associated to a higher hazard (P-value: 0.004) of developing adverse drug reactions classified as metabolism and nutrition disorders. The ABCB1 2677TT/3435TT genotype had a statistically significant lower aripiprazole Ct/ds if compared with patients with others ABCB1 genotypes (P-value: 0.026). Information obtained on ABCB1 and ABCG2 gene variants may result useful to tailor treatments with these drugs in Caucasian pediatric patients.


Assuntos
Aripiprazol/sangue , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/genética , Risperidona/sangue , Esquizofrenia/sangue , Subfamília B de Transportador de Cassetes de Ligação de ATP/genética , Membro 2 da Subfamília G de Transportadores de Cassetes de Ligação de ATP/genética , Adolescente , Aripiprazol/administração & dosagem , Criança , Pré-Escolar , Citocromo P-450 CYP2D6/genética , Citocromo P-450 CYP3A/genética , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/sangue , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos/patologia , Feminino , Genótipo , Humanos , Masculino , Proteínas de Neoplasias/genética , Olanzapina/administração & dosagem , Olanzapina/sangue , Pediatria/tendências , Polimorfismo Genético , Fumarato de Quetiapina/administração & dosagem , Fumarato de Quetiapina/sangue , Risperidona/administração & dosagem , Esquizofrenia/tratamento farmacológico , Esquizofrenia/patologia , Adulto Jovem
12.
Skeletal Radiol ; 47(1): 131-136, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28889228

RESUMO

Calcific tendinopathy of the rotator cuff is a common cause of shoulder pain. Inflammation of the rotator cuff tendons may be complicated by adjacent bone erosion and subsequent migration of calcific deposits within the bone resulting in marrow inflammation. Bone marrow involvement is not readily visible using X-ray and ultrasound (US) and further testing is necessary. Magnetic resonance imaging (MRI) is a highly sensitive technique that can detect a focal bone T1 and T2-weighted hypointensity with bone marrow edema-like signal and cortical erosion. These findings can mislead the radiologist by suggesting an infectious or neoplastic lesion, often requiring further evaluation with computed tomography (CT) and biopsy. We report two cases of patients with shoulder pain in which different radiological approaches were used with pathological confirmation in one of them. In the first case, MRI revealed significant bone involvement in the head of the humerus and cortical erosion of the greater tuberosity. A CT examination and a biopsy was necessary for a final diagnosis of inflammatory bone reaction from intraosseous migration of tendinous calcifications. In the second case, similar MRI findings prompted re-evaluation of imaging to make a diagnosis of intraosseous migration of tendinous calcifications, obviating the need to perform CT and biopsy. We illustrate MRI signs of this complication that we think would allow to narrow the differential diagnosis potentially avoiding biopsy and additional CT examinations.


Assuntos
Calcinose/diagnóstico por imagem , Manguito Rotador/diagnóstico por imagem , Tendinopatia/diagnóstico por imagem , Adulto , Calcinose/patologia , Calcinose/terapia , Tratamento Conservador , Meios de Contraste , Diagnóstico Diferencial , Feminino , Humanos , Biópsia Guiada por Imagem , Imageamento por Ressonância Magnética , Manguito Rotador/patologia , Tendinopatia/patologia , Tendinopatia/terapia , Tomografia Computadorizada por Raios X , Ultrassonografia
13.
Eye (Lond) ; 31(10): 1417-1426, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28524885

RESUMO

PurposeTo evaluate ocular surface parameters before and after hematopoietic stem cell transplantation (HSCT) and to correlate them with clinical and transplant variables.MethodsThis is a retrospective analysis of data from 93 patients affected by hematological malignancies undergoing HSCT. Values from Ocular Surface Disease Index, Schirmer test, Break-up Time, ocular surface staining, and Meibomian Gland Dysfunction score obtained before HSCT and 3-6 months after were retrieved from charts. Diagnosis and staging of dry eye (DE) disease was performed according to Dry Eye WorkShop criteria. Graft-versus-host-disease (GVHD) was classified according to the NIH criteria. Odds ratios for DE onset after HSCT were estimated for demographic, ocular, hematological and transplant variables.ResultsDE was diagnosed before HSCT in 50 (53%) of the patients, mostly of hyperevaporative profile. After HSCT, all ocular parameters significantly worsened with no change in DE profile. A 51% incident cases (22 of the 43 non-DE subjects) were reported. Increasing recipient age and female sex, higher CD34+ cells infused, donor-recipient sex mismatch (males receiving from females), related donors, and peripheral blood cells as stem cell source were associated with a significant higher incidence of DE after HSCT. Systemic chronic GVHD was diagnosed in 42% while ocular GVHD in 35.5% of the patients, which decreased to 12% when taking into account only incident cases.ConclusionsHigh DE prevalence was shown already before HSCT. A pre-HSCT ocular surface assessment is recommended for early DE diagnosis and treatment. This new protocol also influences the prevalence of ocular GVHD.


Assuntos
Túnica Conjuntiva/patologia , Síndromes do Olho Seco/diagnóstico , Doença Enxerto-Hospedeiro/diagnóstico , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Glândulas Tarsais/patologia , Medição de Risco , Adolescente , Adulto , Técnicas de Diagnóstico Oftalmológico , Síndromes do Olho Seco/epidemiologia , Síndromes do Olho Seco/etiologia , Feminino , Doença Enxerto-Hospedeiro/complicações , Doença Enxerto-Hospedeiro/epidemiologia , Neoplasias Hematológicas/terapia , Humanos , Incidência , Itália/epidemiologia , Masculino , Pessoa de Meia-Idade , Prevalência , Estudos Retrospectivos , Fatores de Risco , Transplante Homólogo , Adulto Jovem
14.
Int J Cardiol ; 227: 734-742, 2017 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-27823897

RESUMO

It is commonly accepted that the renin-angiotensin-aldosterone system (RAAS) is a cardiovascular circulating hormonal system that plays also an important role in the modulation of several patterns in the brain. The pathway of the RAAS can be divided into two classes: the traditional pathway of RAAS, also named classic RAAS, and the non-classic RAAS. Both pathways play a role in both cardiovascular and neurological diseases through a peripheral or central control. In this regard, renewed interest is growing in the last years for the consideration that the brain RAAS could represent a new important therapeutic target to regulate not only the blood pressure via central nervous control, but also neurological diseases. However, the development of compounds able to cross the blood-brain barrier and to act on the brain RAAS is challenging, especially if the metabolic stability and the half-life are taken into consideration. To date, two drug classes (aminopeptidase type A inhibitors and angiotensin IV analogues) acting on the brain RAAS are in development in pre-clinical or clinical stages. In this article, we will present an overview of the biological functions played by peripheral and brain classic and non-classic pathways of the RAAS in several clinical conditions, focusing on the brain RAAS and on the new pharmacological targets of the RAAS.


Assuntos
Aldosterona/metabolismo , Encéfalo/metabolismo , Doenças Cardiovasculares/metabolismo , Doenças do Sistema Nervoso/metabolismo , Sistema Renina-Angiotensina/fisiologia , Inibidores da Enzima Conversora de Angiotensina/farmacologia , Inibidores da Enzima Conversora de Angiotensina/uso terapêutico , Animais , Encéfalo/efeitos dos fármacos , Doenças Cardiovasculares/tratamento farmacológico , Humanos , Doenças do Sistema Nervoso/tratamento farmacológico , Sistema Renina-Angiotensina/efeitos dos fármacos
15.
Eur Heart J ; 36(25): 1590-600, 2015 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-25904764

RESUMO

AIM: Constitutive genetic deletion of the adaptor protein p66(Shc) was shown to protect from ischaemia/reperfusion injury. Here, we aimed at understanding the molecular mechanisms underlying this effect in stroke and studied p66(Shc) gene regulation in human ischaemic stroke. METHODS AND RESULTS: Ischaemia/reperfusion brain injury was induced by performing a transient middle cerebral artery occlusion surgery on wild-type mice. After the ischaemic episode and upon reperfusion, small interfering RNA targeting p66(Shc) was injected intravenously. We observed that post-ischaemic p66(Shc) knockdown preserved blood-brain barrier integrity that resulted in improved stroke outcome, as identified by smaller lesion volumes, decreased neurological deficits, and increased survival. Experiments on primary human brain microvascular endothelial cells demonstrated that silencing of the adaptor protein p66(Shc) preserves claudin-5 protein levels during hypoxia/reoxygenation by reducing nicotinamide adenine dinucleotide phosphate oxidase activity and reactive oxygen species production. Further, we found that in peripheral blood monocytes of acute ischaemic stroke patients p66(Shc) gene expression is transiently increased and that this increase correlates with short-term neurological outcome. CONCLUSION: Post-ischaemic silencing of p66(Shc) upon reperfusion improves stroke outcome in mice while the expression of p66(Shc) gene correlates with short-term outcome in patients with ischaemic stroke.


Assuntos
Lesões Encefálicas/prevenção & controle , Inativação Gênica/fisiologia , Traumatismo por Reperfusão/prevenção & controle , Proteínas Adaptadoras da Sinalização Shc/genética , Acidente Vascular Cerebral/prevenção & controle , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Animais , Barreira Hematoencefálica/fisiologia , Estudos de Casos e Controles , Células Cultivadas , Claudina-5/efeitos dos fármacos , Células Endoteliais/fisiologia , Feminino , Expressão Gênica , Técnicas de Silenciamento de Genes , Humanos , Infarto da Artéria Cerebral Média , Pós-Condicionamento Isquêmico/métodos , Masculino , Camundongos Endogâmicos C57BL , Microcirculação/fisiologia , Pessoa de Meia-Idade , RNA Mensageiro/metabolismo , RNA Interferente Pequeno/farmacologia , Espécies Reativas de Oxigênio/farmacologia , Proteínas Adaptadoras da Sinalização Shc/fisiologia , Proteína 1 de Transformação que Contém Domínio 2 de Homologia de Src , Resultado do Tratamento
16.
Mol Genet Metab ; 115(1): 48-52, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25796965

RESUMO

Metachromatic Leukodystrophy (MLD; MIM# 250100) is a rare inherited lysosomal storage disorder caused by the deficiency of Arylsulfatase A (ARSA). The enzymatic defect results in the accumulation of the ARSA substrate that is particularly relevant in myelin forming cells and leads to progressive dysmyelination and dysfunction of the central and peripheral nervous system. Sulfatide accumulation has also been reported in various visceral organs, although little is known about the potential clinical consequences of such accumulation. Different forms of MLD-associated gallbladder disease have been described, and there is one reported case of an MLD patient presenting with functional consequences of sulfatide accumulation in the kidney. Here we describe a wide cohort of MLD patients in whom a tendency to sub-clinical metabolic acidosis was observed. Furthermore in some of them we report episodes of metabolic acidosis of different grades of severity developed in acute clinical conditions of various origin. Importantly, we finally show how a careful acid-base balance monitoring and prompt correction of imbalances might prevent severe consequences of acidosis.


Assuntos
Acidose/complicações , Leucodistrofia Metacromática/complicações , Leucodistrofia Metacromática/metabolismo , Monitorização Fisiológica , Equilíbrio Ácido-Base , Desequilíbrio Ácido-Base , Acidose/sangue , Acidose/prevenção & controle , Acidose/urina , Criança , Pré-Escolar , Estudos de Coortes , Seguimentos , Genótipo , Humanos , Lactente , Estudos Retrospectivos , Fatores de Tempo
17.
Transl Med UniSa ; 5: 7-13, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23905076

RESUMO

Osteoporosis and avascular necrosis (AVN) are long-lasting and debilitating complications of hematopoietic stem cell transplantation (HSCT). We describe the magnitude of bone loss, AVN and impairment in osteogenic cell compartment following autologous (auto) and allogeneic (allo) HSCT, through the retrospective bone damage revaluation of 100 (50 auto- and 50 allo-HSCT) long-term survivors up to 15 years after transplant. Current treatment options for the management of these complications are also outlined. We found that auto- and allo-HSCT recipients show accelerated bone mineral loss and micro-architectural deterioration during the first years after transplant. Bone mass density (BMD) at the lumbar spine, but not at the femur neck, may improve in some patients after HSCT, suggesting more prolonged bone damage in cortical bone. Phalangeal BMD values remained low for even more years, suggesting persistent bone micro-architectural alterations after transplant. The incidence of AVN was higher in allo-HSCT recipients compared to auto-HSCT recipients. Steroid treatment length, but not its cumulative dose was associated with a higher incidence of bone loss. Allo-HSCT recipients affected by chronic graft versus host disease seem to be at greater risk of continuous bone loss and AVN development. Reduced BMD and higher incidence of AVN was partly related to a reduced regenerating capacity of the normal marrow osteogenic cell compartment. Our results suggest that all patients after auto-HSCT and allo-HSCT should be evaluated for their bone status and treated with anti-resorptive therapy as soon as abnormalities are detected.

18.
Stroke Res Treat ; 2013: 715380, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23533963

RESUMO

The aims of this study were (i) to evaluate the clinical features of a consecutive series of young patients with ischemic stroke and (ii) to assess the changes in the clinical management of these patients over the study period. All consecutive cases of young adults aged 16 to 44 years, with ischemic stroke, that were admitted between 2000 and 2005 in 10 Italian hospitals were included. We retrospectively identified 324 patients. One or more vascular risk factors were present in 71.5% of the patients. With respect to the diagnostic process, an increase in the frequency of cerebral noninvasive angiographic studies and a decrease in the use of digital subtraction angiography were observed (P < 0.001 and P = 0.03, resp.). Undetermined causes decreased over 5-year period of study (P < 0.001). The diagnosis of cardioembolism increased. Thrombolysis was performed for 7.7% of the patients. PFO closure (8%) was the most frequently employed surgical procedure. In conclusion, the clinical care that is given to young patients with ischemic stroke changed over the study period. In particular, we detected an evolution in the diagnostic process and a reduction in the number of undetermined cases.

19.
Eur J Intern Med ; 24(2): 167-71, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-23167980

RESUMO

BACKGROUND AND PURPOSE: Sex related differences in cardiovascular disease and stroke are issues of increasing interest. The aim of this study was to evaluate for sex differences in clinical presentation, severity of stroke and outcome in a population of patients admitted to 4 public and 1 private hospitals in three different regions of Italy. METHODS: All hospital admissions for ischemic and haemorrhagic stroke (ICD-IX code 434 and 431 respectively) between January 1st and December 31st, 2011 at five different hospitals located in three different regions of Italy: Milan (North), Rome and Perugia (Center), and Palermo (South) have been recorded and sex-differences have been evaluated. RESULTS: A total of 1272 stroke patients were included in the analysis: 1152 ischemic and 120 haemorrhagic strokes, 567 women and 705 men. Compared to men, women were significantly older (mean age 75.2 SD 13.7 vs 71.5 SD 12.5 years, P<0.001) and their stroke severities at onset, measured by NIHSS, were also compared to men (10 SD 8 vs 8 SD 7, P<0.001). Female sex was associated with a worse functional prognosis measured by modified Rankin Scale score (mRS≥3), as well as in-hospital mortality, without reaching statistical significance. There were no observed significant differences between sexes regarding the number of patients treated with thrombolytic therapy. Analysis of the distribution of risk factors between sexes showed a prevalence of atrial fibrillation in women (29% vs 21%, P=0.003). CONCLUSIONS: Both stroke severity and functional outcome were worse in women.


Assuntos
Sistema de Registros , Acidente Vascular Cerebral/epidemiologia , Feminino , Mortalidade Hospitalar/tendências , Humanos , Itália/epidemiologia , Masculino , Prevalência , Prognóstico , Fatores de Risco , Índice de Gravidade de Doença , Distribuição por Sexo , Fatores Sexuais , Acidente Vascular Cerebral/diagnóstico , Taxa de Sobrevida/tendências
20.
Eur J Neurol ; 19(9): 1199-206, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22448957

RESUMO

OBJECTIVE: To examine whether thrombolysis for stroke attributable to cervical artery dissection (CeAD(Stroke) ) affects outcome and major haemorrhage rates. METHODS: We used a multicentre CeAD(Stroke) database to compare CeAD(Stroke) patients treated with and without thrombolysis. Main outcome measures were favourable 3-month outcome (modified Rankin Scale 0-2) and 'major haemorrhage' [any intracranial haemorrhage (ICH) and major extracranial haemorrhage]. Adjusted odds ratios [OR (95% confidence intervals)] were calculated on the whole database and on propensity-matched groups. RESULTS: Among 616 CeAD(Stroke) patients, 68 (11.0%) received thrombolysis; which was used in 55 (81%) intravenously. Thrombolyzed patients had more severe strokes (median NIHSS score 16 vs. 3; P < 0.001) and more often occlusion of the dissected artery (66.2% vs. 39.4%; P < 0.001). After adjustment for stroke severity and vessel occlusion, the likelihood for favourable outcome did not differ between the treatment groups [OR(adjusted) 0.95 (95% CI 0.45-2.00)]. The propensity matching score model showed that the odds to recover favourably were virtually identical for 64 thrombolyzed and 64 non-thrombolyzed-matched CeAD(Stroke) patients [OR 1.00 (0.49-2.00)]. Haemorrhages occurred in 4 (5.9%) thrombolyzed patients, all being asymptomatic ICHs. In the non-thrombolysis group, 3 (0.6%) patients had major haemorrhages [asymptomatic ICH (n = 2) and major extracranial haemorrhage (n = 1)]. CONCLUSION: As thrombolysis was neither independently associated with unfavourable outcome nor with an excess of symptomatic bleedings, our findings suggest thrombolysis should not be withheld in CeAD(Stroke) patients. However, the lack of any trend towards a benefit of thrombolysis may indicate the legitimacy to search for more efficient treatment options including mechanical revascularization strategies.


Assuntos
Isquemia Encefálica/tratamento farmacológico , Dissecação da Artéria Carótida Interna/tratamento farmacológico , Acidente Vascular Cerebral/tratamento farmacológico , Terapia Trombolítica/métodos , Dissecação da Artéria Vertebral/tratamento farmacológico , Adulto , Isquemia Encefálica/etiologia , Dissecação da Artéria Carótida Interna/complicações , Bases de Dados Factuais , Feminino , Humanos , Hemorragias Intracranianas/induzido quimicamente , Masculino , Pessoa de Meia-Idade , Estudos Multicêntricos como Assunto , Razão de Chances , Estudos Retrospectivos , Acidente Vascular Cerebral/etiologia , Terapia Trombolítica/efeitos adversos , Resultado do Tratamento , Dissecação da Artéria Vertebral/complicações
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