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1.
Curr Rheumatol Rep ; 18(6): 35, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-27108452

RESUMEN

SAPHO syndrome (synovitis, acne, pustulosis, hyperostosis, and osteitis) is a rare autoimmune disease which, due to its clinical presentation and symptoms, is often misdiagnosed and unrecognized. Its main features are prominent inflammatory cutaneous and articular manifestations. Treatments with immunosuppressive drugs have been used for the management of SAPHO with variable results. To date, the use of anti-TNF-α agents has proved to be an effective alternative to conventional treatment for unresponsive or refractory SAPHO cases. TNF-α is a pro-inflammatory cytokine and pivotal regulator of other cytokines, including IL-1 ß, IL-6, and IL-8, involved in inflammation, acute-phase response induction, and chemotaxis. IL-1 inhibition strategies with anakinra have shown efficacy as first and second lines of treatment. In this review, we will describe the main characteristics of biological drugs currently used for SAPHO syndrome. We also describe some of the promising therapeutic effects of ustekinumab, an antibody against the p40 subunit of IL-12 and IL-23, after failure of multiple drugs including anti-TNF-α and anakinra. We discuss the use and impact of the new anti-IL-1 antagonists involved in the IL-17 blockade, in particular for the most difficult-to-treat SAPHO cases.


Asunto(s)
Síndrome de Hiperostosis Adquirido/diagnóstico , Síndrome de Hiperostosis Adquirido/tratamiento farmacológico , Síndrome de Hiperostosis Adquirido/etiología , Adalimumab/uso terapéutico , Productos Biológicos/uso terapéutico , Humanos , Proteína Antagonista del Receptor de Interleucina 1/uso terapéutico , Interleucina-1/antagonistas & inhibidores , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Ustekinumab/uso terapéutico
2.
Clin Immunol ; 157(2): 239-48, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25744496

RESUMEN

Sporadic and familiar forms of non-histaminergic angioedema and normal C1 inhibitor encompass a group of disorders possibly caused by bradikinin. We aimed to study the subgroups of hereditary angioedema with FXII mutation (FXII-HAE), unknown genetic defect (U-HAE) and idiopathic non-histaminergic acquired angioedema (InH-AAE). We screened the F12 locus in our cohort and delineated the clinical, laboratory and genetic features. Four families carried the p.Thr309Lys mutation in F12 gene. Haplotyping confirmed the hypothesis of a common founder. Six families were affected by U-HAE and 13 patients by sporadic InH-AAE. C4 levels were significantly lower in FXII-HAE than in InH-AAE. In the FXII-HAE group, none had attacks exclusively in high estrogenic states; acute attacks were treated with icatibant. Prophylaxis with tranexamic acid reduced the attack frequency in most patients. Our study provides new data on the diagnosis, clinical features and treatment of non-histaminergic angioedema, underlying the role of the screening for F12 mutations.


Asunto(s)
Angioedemas Hereditarios/genética , Complemento C4/inmunología , Factor XII/genética , Adolescente , Adulto , Anciano , Angioedema/tratamiento farmacológico , Angioedema/genética , Angioedema/inmunología , Angioedemas Hereditarios/tratamiento farmacológico , Angioedemas Hereditarios/inmunología , Antifibrinolíticos/uso terapéutico , Bradiquinina/análogos & derivados , Bradiquinina/uso terapéutico , Antagonistas del Receptor de Bradiquinina B2/uso terapéutico , Estudios de Cohortes , Femenino , Predisposición Genética a la Enfermedad , Pruebas Genéticas , Humanos , Italia , Masculino , Persona de Mediana Edad , Linaje , Polimorfismo de Nucleótido Simple , Ácido Tranexámico/uso terapéutico , Adulto Joven
3.
Clin Immunol ; 147(2): 129-32, 2013 May.
Artículo en Inglés | MEDLINE | ID: mdl-23583915

RESUMEN

Hereditary angioedema (HAE) due to C1 inhibitor (C1-INH) deficiency is an autosomal dominant disorder caused by mutations in SERPING1 gene. More than 200 different mutations are known, with high genetic heterogeneity and high frequency of private familial mutations. We analyzed for genetic mutations the C1-INH locus in 11 Sardinian families, revealing in seven subjects from four unrelated families the novel nonsense mutation S318X. This mutation, detected with unexpected high frequency, accounts for over a third of the here reported Sardinian families affected by HAE. The recurrence of a pathogenic mutation within the same geographical area is a unique finding, previously unreported in HAE due to C1-INH deficiency.


Asunto(s)
Angioedemas Hereditarios/genética , Proteínas Inactivadoras del Complemento 1/genética , Adolescente , Niño , Preescolar , Proteína Inhibidora del Complemento C1 , Femenino , Humanos , Italia/epidemiología , Masculino , Mutación , Adulto Joven
4.
J Antimicrob Chemother ; 68(1): 193-9, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22984206

RESUMEN

OBJECTIVES: To define the impact of coinfection with hepatitis B virus (HBV) or hepatitis C virus (HCV) on viroimmunological response to raltegravir-based salvage regimens that also include new HIV inhibitors such as maraviroc, darunavir and etravirine. METHODS: We used data from a national observational study of patients starting raltegravir-based regimens to compare virological suppression and CD4 cell change from baseline in patients with and without concomitant HBV or HCV infection. RESULTS: Overall, 275 patients (107 coinfected and 168 non-coinfected) were evaluated. Coinfected patients were more commonly former intravenous drug users and had a longer history of HIV infection and higher baseline aminotransferase levels. Both HIV-RNA and CD4 response were similar in the two groups. Mean time to first HIV-RNA copy number <50 copies/mL was 4.1 months (95% CI 3.5-4.6) in non-coinfected patients and 3.9 months (95% CI 3.3-4.5) in coinfected patients (hazard ratio 1.039, 95% CI 0.761-1.418, P = 0.766, log-rank test). The risk of developing new grade 3-4 hepatic adverse events was significantly higher in coinfected patients (hazard ratio 1.779, 95% CI 1.123-2.817, P = 0.009). The two groups of coinfected and non-coinfected patients had similar rates of interruption of any baseline drug (hazard ratio 1.075, 95% CI 0.649-1.781, P = 0.776) and of raltegravir (hazard ratio 1.520, 95% CI 0.671-3.447, P = 0.311). Few AIDS-defining events and deaths occurred. CONCLUSIONS: Viroimmunological response to regimens based on raltegravir and other recent anti-HIV inhibitors is not negatively affected by coinfection with HBV or HCV. Liver toxicity, either pre-existing or new, is more common in coinfected patients, but with no increased risk of treatment interruption.


Asunto(s)
Coinfección/tratamiento farmacológico , Infecciones por VIH/tratamiento farmacológico , Hepatitis B/tratamiento farmacológico , Hepatitis C/tratamiento farmacológico , Terapia Recuperativa/métodos , Adulto , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Coinfección/epidemiología , Femenino , Estudios de Seguimiento , Infecciones por VIH/epidemiología , Hepacivirus/efectos de los fármacos , Hepatitis B/epidemiología , Virus de la Hepatitis B/efectos de los fármacos , Hepatitis C/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento , Adulto Joven
5.
Clin Dev Immunol ; 2011: 283239, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21197459

RESUMEN

Refractory or recurrent infections of skin, nails, and the mucous membranes are clinical signs of chronic mucocutaneous candidiasis, frequently associated with immunological defects. Here we describe a 39-years-old female patient, with familial CMC, that presented with an extensive infection caused by an azole-resistant Candida albicans isolate, successfully treated with posaconazole.


Asunto(s)
Candidiasis Mucocutánea Crónica , Triazoles , Administración Oral , Adulto , Antifúngicos/uso terapéutico , Candida albicans/patogenicidad , Candidiasis Mucocutánea Crónica/tratamiento farmacológico , Candidiasis Mucocutánea Crónica/inmunología , Farmacorresistencia Fúngica , Femenino , Humanos , Resultado del Tratamiento , Triazoles/administración & dosificación , Triazoles/uso terapéutico
6.
Arch Med Sci ; 15(1): 92-98, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-30697258

RESUMEN

Introduction: Hereditary angioedema due to C1-INH deficiency (C1-INH-HAE) or with normal C1-INH is characterized by recurrent swellings due to uncontrolled production of vasoactive mediators, among which bradykinin (BK) is crucial. Through the binding and activation of the two human BK-receptors, kinins may have dual beneficial and deleterious effects in vascular and inflammation physiopathology by inducing oxidative stress. We aimed to assess the serum concentrations of advanced glycation end products (AGEs) and advanced oxidation protein products (AOPPs) in patients affected by HAE. Material and methods: Blood samples were collected to measure the serum concentrations of AGEs and AOPPs by spectrofluorimetric and spectrophotometric methods in patients affected by C1-INH-HAE and FXII-HAE during the remission state. Results: We showed that the circulating levels of AOPPs observed on control group (0.94 (0.36) nmol/mg) were significantly lower than those observed on the C1-INH-HAE group (1.68 (0.47) nmol/mg; p = 0.002) and FXII-HAE (1.50 (0.27) nmol/mg; p = 0.001). Moreover, the circulating levels of AGEs were significantly higher in C1-INH-HAE group (211.58 (151.05) AU/g; p = 0.02) than the FXII group (141.48 (89.59) AU/g), thus demonstrating a state of heightened oxidative stress. Conclusions: Our observations show additional underlying events involved in HAE and are of central importance for further investigations of differences in bradykinin receptors signaling among the two disease subgroups.

8.
Int J Cardiol ; 241: 401-406, 2017 Aug 15.
Artículo en Inglés | MEDLINE | ID: mdl-28476520

RESUMEN

BACKGROUND: Pulmonary arterial hypertension (PAH) in systemic sclerosis (SS) identifies a poor prognosis subset of patients. Recent studies suggested a "metabolic theory" on the development of pulmonary arterial hypertension. On this basis we performed a metabolomic study in order to evaluate whether differences in pulmonary arterial blood metabolites were identifiable in SS patients with increased pulmonary vascular resistance (PVR). METHODS: We studied 18 SS patients (age 58.7±15.6years) free of pulmonary fibrosis who underwent a right heart catheterization (RHC). A blood sample was collected during the RHC in the distal peripheral circulation of the pulmonary arteries to perform the metabolomic analysis. RESULTS: Based on PVR we divided the population into Group A (n=8; PVR=1.16±0.23WU) and Group B (n=10; PVR=2.67±0.67WU; p<0.001 vs Group A). No significant differences were identified in terms of anthropometric, clinical, echo and therapeutic characteristics. At RHC the 2 groups showed a difference in mean pulmonary pressure values (Group A: 20±4mmHg; Group B: 27±3.4mmHg; p=0.03), with mild PAH in Group B. We applied an OSC-PLS-DA with a clear clusterization; SSc patients with PAH showed an increase in acetate, alanine, lactate, and lipoprotein levels and a decrease in γ-aminobutyrate, arginine, betaine, choline, creatine, creatinine, glucose, glutamate, glutamine, glycine, histidine, phenylalanine, and tyrosine levels CONCLUSIONS: Our results suggest that, despite similar clinical and disease-related parameters, SSc patients who develop PAH have an unfavorable metabolic profile able to cause an impaired production of metabolites with protective effects on endothelial cells.


Asunto(s)
Dermatoglifia del ADN/métodos , Hipertensión Pulmonar/diagnóstico por imagen , Hipertensión Pulmonar/genética , Metabolómica/métodos , Esclerodermia Sistémica/diagnóstico por imagen , Esclerodermia Sistémica/genética , Adulto , Anciano , Femenino , Humanos , Hipertensión Pulmonar/epidemiología , Espectroscopía de Resonancia Magnética/métodos , Masculino , Persona de Mediana Edad , Esclerodermia Sistémica/epidemiología
9.
AIDS ; 20(12): 1621-6, 2006 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-16868443

RESUMEN

BACKGROUND: Hypersensitivity reaction to nevirapine, which in some cases can be fatal, shows a higher prevalence in Sardinia in comparison with other Italian regions. OBJECTIVE: This study demonstrates that hypersensitive reaction to nevirapine in Sardinian HIV-infected patients is associated with the HLA Cw8-B14 haplotype. These two HLA class I antigens are in strong linkage disequilibrium in the Sardinian population. METHODS: Forty-nine Sardinian HIV-positive patients treated with nevirapine were studied. Thirteen (26%), developed a hypersensitive reaction thus requiring the drug to be discontinued. HLA class I and II molecular typing was performed in both nevirapine-hypersensitive and nevirapine-tolerant patients. To avoid biased representation of the allele frequencies in the two groups of treated patients, molecular typing was also performed in 82 HIV-positive patients who had not been treated with nevirapine. RESULTS: Considerable overlap was observed for the clinical, immunological and demographic characteristics of the 13 hypersensitive patients and 36 tolerant patients. Clinical parameters included viral load, status of HIV infection, CD4 and CD8 cell counts, hepatitis C virus/hepatitis B virus co-infections. Forty-six percent (6/13) of the nevirapine-hypersensitive subjects had the HLA-Cw8 and HLA-B14(65) antigens compared with 5% (2/36) of the nevirapine-tolerant group (P = 0.004; Pc = 0.05). CONCLUSION: In agreement with other recent reports, the utility of HLA typing in HIV patients to identify genetic factors that may confer susceptibility to drug-induced hypersensitive reaction was confirmed. A careful choice of antiretroviral therapy in susceptible individuals should significantly reduce the risk of severe hypersensitive reaction.


Asunto(s)
Hipersensibilidad a las Drogas/inmunología , Infecciones por VIH/inmunología , Antígenos de Histocompatibilidad Clase I/inmunología , Nevirapina/efectos adversos , Inhibidores de la Transcriptasa Inversa/efectos adversos , Adolescente , Adulto , Hipersensibilidad a las Drogas/epidemiología , Hipersensibilidad a las Drogas/etiología , Femenino , Frecuencia de los Genes , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Antígenos HLA-B/inmunología , Antígeno HLA-B14 , Antígenos HLA-C/inmunología , Antígenos HLA-DR/inmunología , Haplotipos , Hepatitis C/complicaciones , Hepatitis C/inmunología , Humanos , Italia/epidemiología , Recuento de Linfocitos , Masculino , Persona de Mediana Edad , Nevirapina/inmunología , Prevalencia , Inhibidores de la Transcriptasa Inversa/inmunología
10.
PLoS One ; 11(6): e0156360, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27348592

RESUMEN

BACKGROUND: There are no data comparing the response to PI/r-based regimens in people presenting for care with low CD4 counts or AIDS (LC). AIM: To compare the response to LPV/r-, DRV/r- or ATV/r-based cART regimens in LC initiating cART from ART-naive. METHODS: We included people enrolled in Icona with either CD4 counts ≤350 cells/mm3 (low CD4-LC) or CD4 counts ≤200 cells/mm3 (very low CD4-VLC) and/or AIDS, starting their first PI/r-based regimen after 2008. Initial regimens were compared by intention-to-treat: i) time to viral failure (VF) (first of 2 consecutive VL>200 copies/mL after≥6 months); II) time to PI/r discontinuation/switching for any cause (TD) and for toxicity (TDT); III) treatment failure (TF) (VF or TD). Kaplan-Meier and Cox analyses were used. RESULTS: 1,362 LC patients were included (DRV/r 607; ATV/r 552; LPV/r 203); 813 VLC. In a median of 18 months (IQR:7-35), the 1-year probability of VF and TF were 2.8% (1.9-3.8) and 21.1% (18.7-23.4). In the adjusted analysis, patients initiating ATV/r had a 53% lower chance, and those initiating DRV/r a 61% lower chance of TD, as compared to LPV/r; the risk of TF was more likely in people starting LPV/r. Results were similar among VLC; in this subgroup LPV/r including regimens demonstrated a lower chance of VF. CONCLUSIONS: We confirmed in LC a low chance of virological failure by 1 year, with small differences according to PI/r. However, larger differences were observed when comparing longer-term endpoints such as treatment failure. These results are important for people presenting late for care.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Linfocitos T CD4-Positivos/citología , Inhibidores de la Proteasa del VIH/uso terapéutico , Seropositividad para VIH/tratamiento farmacológico , Ritonavir/uso terapéutico , Adulto , Fármacos Anti-VIH/administración & dosificación , Fármacos Anti-VIH/efectos adversos , Femenino , Inhibidores de la Proteasa del VIH/administración & dosificación , Inhibidores de la Proteasa del VIH/efectos adversos , Seropositividad para VIH/sangre , Humanos , Recuento de Linfocitos , Masculino , Ritonavir/administración & dosificación , Ritonavir/efectos adversos
11.
Respir Med ; 120: 44-53, 2016 11.
Artículo en Inglés | MEDLINE | ID: mdl-27817815

RESUMEN

BACKGROUND: The literature reports a significant association between various mental disorders and asthma, in particular depression and/or anxiety, with some more robust data regarding anxiety disorders. However, the nature of this association remains largely unclear. OBJECTIVES: (1) To test the hypothesis of a specific association of anxiety and depressive disorder (according to the DSM-IV) with asthma and (2) to test the bidirectional hypothesis of causality between asthma and psychiatric disorders. METHODS: Ninety-six adults were compared with 96 control subjects matched according to main socio-demographic variables (i.e., gender, age, marital status, cohabiting/non-cohabiting, and BMI). Subjects with asthma were divided according to GINA and ACT classifications. All subjects underwent Structured Clinical Interviews for DSM-IV Axis I (SCID-I) diagnosis. RESULTS: Significant association between asthma and lifetime anxiety disorders emerged (OR 3.03; p = 0.003); no significant association with other psychiatric diagnosis emerged. Moreover, lifetime and current anxiety were associated with asthma severity levels (p < 0.01 and p = 0.001 based on age). Asthma preceded anxiety in 48% of cases; in 52% of cases, anxiety preceded asthma, without significant group differences. The risk of asthma, particularly of severe, uncontrolled forms (p < 0.01), resulted higher in lifetime anxiety disorder patients (p = 0.003 and p = 0.001 based on age at onset). Current anxiety increased the risk of asthma, and that of an uncontrolled form (p < 0.05). Asthma increased the risk of lifetime anxiety disorders (p = 0.002 and p = 0.018 using ages). Intermittent asthma increased the risk of lifetime and current anxiety disorders (p < 0.01). CONCLUSIONS: Anxiety disorders, in particular Lifetime Anxiety Disorders, represent the only psychiatric disorder significantly associated with asthma, with a possible bidirectional, anxiety-asthma relationship, each of which can be caused or result from the other.


Asunto(s)
Trastornos de Ansiedad/complicaciones , Asma/complicaciones , Asma/psicología , Trastorno Depresivo/complicaciones , Adulto , Anciano , Trastornos de Ansiedad/epidemiología , Trastornos de Ansiedad/psicología , Asma/epidemiología , Índice de Masa Corporal , Estudios de Casos y Controles , Comorbilidad , Costo de Enfermedad , Trastorno Depresivo/epidemiología , Trastorno Depresivo/psicología , Femenino , Humanos , Italia/epidemiología , Masculino , Persona de Mediana Edad , Prevalencia , Riesgo , Índice de Severidad de la Enfermedad , Adulto Joven
12.
J Endod ; 41(9): 1565-70, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26008113

RESUMEN

SAPHO syndrome (SS) is an autoinflammatory disease characterized by synovitis, acne, pustulosis, hyperostosis, and osteitis. Among the sites affected by the osteoarticular manifestations of SS are the anterior chest wall and the mandible. The etiology of SS is still unknown; theories advocate a genetic predisposition and an infectious cause in association with disorders of the immune system. We report a case of SS in which there was the involvement of the mandible with a lesion of endodontic origin. A 44-year-old white woman diagnosed with SS at the university hospital was referred to the Department of Conservative Dentistry and Endodontics for a consultation. She reported spontaneous pain localized to the periapical area of tooth #19 with a history of multiple restorative and endodontic treatments. It was diagnosed as a previously treated tooth with symptomatic apical periodontitis (AP) at the time of the endodontic evaluation. A second retreatment was then performed in 1 appointment under local anesthesia. During retreatment, a separated instrument and a ledge were found in the mesiobuccal canal, and attempts to bypass it were not successful; the canal was then obturated to the reachable length. Within the same month, the patient was also administered an anti-tumor necrosis factor alpha biologic medication in association with a disease-modifying antirheumatic drugs for the treatment of SS. Within 3 months, the overall therapy had led to a marked improvement of the systemic and mandibular symptoms, and a periapical radiograph showed almost complete healing of the lesion. Medical examinations have shown a total remission of signs and symptoms starting 6 months after the initiation of treatment. After 5 years, the disease is under control, and tooth #19 is symptom free and shows absence of AP. The endodontists need to be aware of the existence of SS and the possible effects of the use of disease-modifying antirheumatic drugs and biologic medications on the treatment of persistent AP.


Asunto(s)
Síndrome de Hiperostosis Adquirido/tratamiento farmacológico , Productos Biológicos/uso terapéutico , Periodontitis Periapical/terapia , Factor de Necrosis Tumoral alfa/uso terapéutico , Síndrome de Hiperostosis Adquirido/complicaciones , Síndrome de Hiperostosis Adquirido/diagnóstico por imagen , Adulto , Femenino , Humanos , Periodontitis Periapical/diagnóstico por imagen , Radiografía Dental , Retratamiento , Tratamiento del Conducto Radicular
13.
Int J Cardiovasc Imaging ; 31(3): 529-36, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25547289

RESUMEN

Several studies have evidenced high prevalence of myocardial systolic and diastolic dysfunction among patients with systemic sclerosis (SSc). Exercise echocardiography has shown a diagnostic and prognostic role in identifying early left ventricular (LV) dysfunction in several myocardial pathological settings. The aim of our study was to evaluate early signs of LV impairment under exercise and their correlation to patient's exercise tolerance. Forty-five patients (age 60.4 ± 10.3 years) with SSc and 20 age and sex comparable controls were enrolled in the study. All patients underwent clinical evaluation, 2D echocardiography associated with Tissue Doppler and speckle tracking to evaluate LV deformation indexes, and an exercise echocardiography to evaluate left ventricle contractile reserve (LVCR) and exercise pulmonary pressures. Finally, a 6-minute walking test (6MWT) to evaluate exercise tolerance was also performed. Compared to controls, SSc patients showed an impaired diastolic function (E/E' 10.9 ± 3.7 vs 8.36 ± 2.01; p < 0.01) associated with larger left atrial dimensions (LAVI 28.4 ± 8.7 vs 19.3 ± 4.6 mL/m(2); p < 0.01). During exercise echocardiography, a reduced global longitudinal strain at peak exercise (S-GLS) was highlighted compared to controls (15.7 ± 3.6 vs 18.2 ± 2.2; p = 0.001). A S-GLS cutoff <18%, identified by ROC analysis, identified SSc patients with a reduced diastolic function, exercise tolerance at the 6MWT and higher pulmonary pressures. Our data show that in SSc patients a reduced LVCR characterizes the patients with a more extensive cardiovascular impairment in terms of LV diastolic function, pulmonary pressures and exercise tolerance. These data underline the importance of exercise echocardiography for the preclinical screening of the LV impairment in this population.


Asunto(s)
Ecocardiografía Doppler en Color , Ecocardiografía de Estrés , Prueba de Esfuerzo , Tolerancia al Ejercicio , Contracción Miocárdica , Esclerodermia Sistémica/complicaciones , Disfunción Ventricular Izquierda/diagnóstico por imagen , Función Ventricular Izquierda , Anciano , Área Bajo la Curva , Presión Arterial , Estudios de Casos y Controles , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Pronóstico , Estudios Prospectivos , Arteria Pulmonar/fisiopatología , Curva ROC , Factores de Riesgo , Esclerodermia Sistémica/diagnóstico , Disfunción Ventricular Izquierda/etiología , Disfunción Ventricular Izquierda/fisiopatología , Caminata
14.
Mol Biosyst ; 11(6): 1552-62, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25671558

RESUMEN

SAPHO syndrome is a rare and often unrecognized disease with prominent inflammatory cutaneous and articular symptoms characterized by musculoskeletal manifestations (synovitis, hyperostosis, osteomyelitis) associated with dermatological conditions (severe acne and pustulosis). The acidic soluble fraction of whole saliva from 10 adult women affected by SAPHO syndrome and from a group of 28 healthy women was analysed by RP-HPLC-ESI-MS with the aim of discovering salivary biomarkers of the disorder. The levels of the oral proteins and peptides were correlated with clinical data. The following proteins showed a significant decreased concentration in saliva of SAPHO subjects with respect to controls: cystatin S1 and SN, histatins, the major acidic PRPs, P-C and P-B peptides. The cystatin SN abundance lowered according to the disease duration and histatins showed positive correlations with the C reactive protein. Statistical analysis performed excluding one patient with a different pattern of salivary proteins/peptides highlighted a positive relationship between cystatin S1, histatins 3, histatin 5, and the neutrophil count. Moreover, histatin 3 correlated positively with the total white cell count and negatively with the erythrocyte sedimentation rate. Levels and frequency of S100A12 protein showed a trend to increase in SAPHO patients. The high expression of this pro-inflammatory protein is probably related to the inflammatory response and to the altered neutrophil responses to functional stimuli that characterize SAPHO syndrome suggesting a possible application as a salivary biomarker.


Asunto(s)
Síndrome de Hiperostosis Adquirido/metabolismo , Cromatografía Líquida de Alta Presión/métodos , Proteoma/análisis , Proteómica/métodos , Proteínas y Péptidos Salivales/análisis , Espectrometría de Masa por Ionización de Electrospray/métodos , Adulto , Femenino , Humanos , Persona de Mediana Edad , Saliva/química , Estadísticas no Paramétricas
15.
AIDS Res Hum Retroviruses ; 20(7): 701-3, 2004 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15307913

RESUMEN

It has been demonstrated that prolonged in vivo or in vitro treatment with some nucleosides analogs may favor the selection of cells with a reduced activity of enzymes involved in the phosphorylation of these drugs leading to a reduced sensitivity to their antiretroviral action. The aim of this study was to evaluate the effect, in vivo, of zidovudine and stavudine treatment on thymidine kinase (TK) activity. The results obtained showed that TK levels in PBMC from naive patients and stavudine-treated patients did not significantly differ (naive TK = 4.16 +/- 1.19 U/mg protein; stavudine TK = 3.65 +/- 1.73 U/mg protein; p = 0.42), suggesting that the treatment with this nucleoside analog is not associated to a defect of TK activity. On the contrary, PBMC from zidovudine-treated patients showed a significant reduction in TK activity compared to naive patients (naive TK = 4.16 +/- 1.19 U/mg protein; zidovudine TK = 2.70 +/- 1.54; p = 0.014. Although the clinical significance of these results has to be established, we can speculate that stavudine and zidovudine, which are presumably phosphorylated by the same cellular kinases, might display a different ability to in vivo select cells with a resistant phenotype.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Infecciones por VIH/tratamiento farmacológico , Estavudina/uso terapéutico , Timidina Quinasa/sangre , Infecciones por VIH/sangre , Infecciones por VIH/enzimología , Humanos , Leucocitos Mononucleares/enzimología , Timidina Quinasa/efectos de los fármacos , Zidovudina/uso terapéutico
16.
J Laryngol Otol ; 116(6): 470-3, 2002 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-12385365

RESUMEN

Kaposi's sarcoma of an intraparotid lymph node is extremely rare in non-immunocompromised human immuno-1 deficiency virus (HIV)-negative patients. We report a case of a left parotid mass as an early sign of Kaposi's sarcoma-associated human herpesvirus 8 (HHV-8) infection in a 57-year-old patient. After subtotal parotidectomy and histopathological diagnosis of lymph node localization of Kaposi's sarcoma, an accurate dermatological investigation revealed a solitary small lesion in the left foot. Chemotherapy with five cycles of vincristine gave a temporary response of the cutaneous lesion. Seven months later, a few small, firm, purplish-red lesions appeared in different areas of the body, but no adjuvant treatment was accepted by the patient since the lesions occasionally disappeared or remained stable in size. At four years follow-up, there has been no recurrence in the parotid region, and the patient is alive with cutaneous disease but in good general health. The problems related to the diagnosis, the management strategy of such a rare condition and the prognosis are also discussed.


Asunto(s)
Herpesvirus Humano 8 , Neoplasias de la Parótida/virología , Sarcoma de Kaposi/virología , Humanos , Masculino , Persona de Mediana Edad , Neoplasias de la Parótida/patología , Sarcoma de Kaposi/patología
17.
Autoimmunity ; 47(6): 389-94, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24720503

RESUMEN

To assess whether the immune derangement previously observed in SAPHO syndrome could be linked to variations in blood TH1, TH2 or TH17 lymphocytes frequency. Seven SAPHO patients with a protracted course of the disease were studied ex-vivo for intracellular cytokines production by means of flow-cytometry and compared with matched groups of Psoriatic Arthritis patients and healthy controls. The Kruskal-Wallis test on the median of the three categories showed that there is a significant association between the TH17 levels and the category (p value = 0.02474). The mean and variance for the proportion of IL-17 producing CD4+ cells were compared between groups showing significant differences between SAPHO versus PsA subgroup (p = 0.05) and SAPHO versus healthy controls (p = 0.008). Interestingly, activation of TH17 axis, but not of TH1 and TH2, has been found, and can be observed both in patients with different activity of the disease or treated with different drugs. The TH17 increase in peripheral blood of our SAPHO subjects resembles the one recently found in patients with different AIDs. Novel therapeutic options in these patients may therefore include IL-17 blockade.


Asunto(s)
Síndrome de Hiperostosis Adquirido/inmunología , Células Th17/inmunología , Síndrome de Hiperostosis Adquirido/sangre , Adulto , Linfocitos T CD4-Positivos/inmunología , Linfocitos T CD4-Positivos/metabolismo , Recuento de Células , Humanos , Interleucina-17/biosíntesis , Interleucina-17/inmunología , Activación de Linfocitos , Persona de Mediana Edad , Células Th17/patología
18.
Inflamm Allergy Drug Targets ; 13(3): 199-205, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24846337

RESUMEN

Synovitis, Acne, Pustulosis, Hyperostosis and Osteitis (SAPHO) syndrome is a rare and often unrecognized disease with prominent inflammatory cutaneous and articular manifestations. Since the identification of the syndrome many immunosuppressive drugs have been used for the management of SAPHO, with variable results. The use of anti- TNF-α agents as a therapeutic option for SAPHO cases unresponsive or refractory to conventional drugs, demonstrated their efficacy for bone, skin and joints manifestations. TNF-α is a pro-inflammatory cytokine and pivotal regulator of other cytokines, including IL-1 ß , IL-6 and IL-8, involved in inflammation, acute-phase response induction and chemotaxis. IL-1 inhibition strategies with Anakinra have proven their efficacy as first and second line treatment. We herein review the literature concerning the use of biological drugs in patients with SAPHO syndrome. In addition, we describe for the first time the use of Ustekinumab, an antibody against the p40 subunit of IL-12 and IL-23, after failure of multiple drugs including anti-TNF-α and Anakinra. This anti-IL12/IL23 agent could be a promising therapeutic option, also considering the opportunity to interfere with the IL23/TH17 pathway, which we recently found disturbed. Furthermore, a rationale emerges for the use of the new anti-IL-1 antagonists or the IL-17 blockade, in particular for the most difficult-to-treat SAPHO cases.


Asunto(s)
Síndrome de Hiperostosis Adquirido/tratamiento farmacológico , Factores Inmunológicos/uso terapéutico , Inmunosupresores/uso terapéutico , Síndrome de Hiperostosis Adquirido/inmunología , Síndrome de Hiperostosis Adquirido/fisiopatología , Animales , Anticuerpos Monoclonales Humanizados/farmacología , Anticuerpos Monoclonales Humanizados/uso terapéutico , Humanos , Factores Inmunológicos/farmacología , Inmunosupresores/farmacología , Interleucinas/inmunología , Factor de Necrosis Tumoral alfa/antagonistas & inhibidores , Ustekinumab
19.
Front Aging Neurosci ; 6: 309, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25426067

RESUMEN

Neurological disorders (Alzheimer's disease, vascular and mixed dementia) and visual loss (cataract, age-related macular degeneration, glaucoma, and diabetic retinopathy) are among the most common conditions that afflict people of at least 65 years of age. An increasing body of evidence is emerging, which demonstrates that memory and vision impairment are closely, significantly, and positively linked and that statins and aspirin may lessen the risk of developing age-related visual and neurological problems. However, clinical studies have produced contradictory results. Thus, the intent of the present study was to reliably establish whether a relationship exist between various types of dementia and age-related vision disorders, and to establish whether statins and aspirin may or may not have beneficial effects on these two types of disorders. We found that participants with dementia and/or vision problems were more likely to be depressed and displayed worse functional ability in basic and instrumental activities of daily living than controls. Mini mental state examination scores were significantly lower in patients with vision disorders compared to subjects without vision disorders. A closer association with macular degeneration was found in subjects with Alzheimer's disease than in subjects without dementia or with vascular dementia, mixed dementia, or other types of age-related vision disorders. When we considered the associations between different types of dementia and vision disorders and the use of statins and aspirin, we found a significant positive association between Alzheimer's disease and statins on their own or in combination with aspirin, indicating that these two drugs do not appear to reduce the risk of Alzheimer's disease or improve its clinical evolution and may, on the contrary, favor its development. No significant association in statin use alone, aspirin use alone, or the combination of these was found in subjects without vision disorders but with dementia, and, similarly, none in subjects with vision disorders but without dementia. Overall, these results confirm the general impression so far; namely, that macular degeneration may contribute to cognitive disorders (Alzheimer's disease in particular). In addition, they also suggest that, while statin and aspirin use may undoubtedly have some protective effects, they do not appear to be magic pills against the development of cognitive impairment or vision disorders in the elderly.

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