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1.
Eur J Nutr ; 63(1): 303-321, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-37875637

RESUMO

BACKGROUND: Dietary nitrate (NO3-) has been shown to be useful as an ergogenic aid with potential applications in health and disease (e.g., blood pressure control). However, there is no consensus about the effects of dietary NO3- or beetroot (BR) juice supplementation on cognitive function. OBJECTIVE: The aim of this study was to evaluate the effects of a single dose of a chewable BR-based supplement on cognitive performance. METHODS: A double-blind randomized placebo-controlled two-period crossover clinical trial was carried out based on the extension of the CONSORT guidelines for randomized crossover trials. A total of 44 participants (24 F; 20 M; 32.7 [12.5] years; 66.3 [9.0] kg; 170 [9.2] cm; 22.8 [1.4] kg/m2) were randomly allocated to receive first either four BR-based chewable tablets (BR-CT) containing 3 g of a Beta vulgaris extract (RedNite®) or four tablets of a placebo (maltodextrin). A 4-day washout period was used before crossover. Ninety minutes after ingestion of the treatments, a neuropsychological testing battery was administered in each period. The trial was registered at clinicaltrials.gov NCT05509075. RESULTS: Significant improvements with moderate effect size were found on memory consolidation at the short and long term only after BR-CT supplementation via the Rey Auditory Verbal Learning Test immediate (+ 20.69%) and delayed (+ 12.34%) recalls. Likewise, enhancement on both frontal lobe functions (+ 2.57%) and cognitive flexibility (+ 11.16%) were detected after BR-CT. There was no significant change (p < 0.05) on verbal memory of short-term digits, working memory and information processing speed. Mixed results were found on mood and anxiety through the Beck Depression Inventory-II (BDI-II) and the State-Trait Anxiety Inventory (STAI-Y1 and STAI-Y2); however, sequence and period effects were seen on STAI-Y2. CONCLUSIONS: The acute administration of a chewable BR-based supplement improves certain aspects of cognitive function in healthy females and males, particularly memory capacity and frontal skills.


Assuntos
Beta vulgaris , Nitratos , Masculino , Feminino , Humanos , Estudos Cross-Over , Suplementos Nutricionais , Antioxidantes , Cognição , Método Duplo-Cego
2.
BMC Oral Health ; 23(1): 134, 2023 03 09.
Artigo em Inglês | MEDLINE | ID: mdl-36894902

RESUMO

OBJECTIVES: Evaluate the role of platelet-rich fibrin (PRF) as a natural carrier for antibiotics delivery through the analysis of drug release and antimicrobial activity. MATERIALS AND METHODS: PRF was prepared according to the L-PRF (leukocyte- and platelet-rich fibrin) protocol. One tube was used as control (without drug), while an increasing amount of gentamicin (0.25 mg, G1; 0.5 mg, G2; 0.75 mg, G3; 1 mg, G4), linezolid (0.5 mg, L1; 1 mg, L2; 1.5 mg, L3; 2 mg, L4), vancomycin (1.25 mg, V1; 2.5 mg, V2; 3.75 mg, V3; 5 mg, V4) was added to the other tubes. At different times the supernatant was collected and analyzed. Strains of E. coli, P. aeruginosa, S. mitis, H. influenzae, S. pneumoniae, S. aureus were used to assess the antimicrobial effect of PRF membranes prepared with the same antibiotics and compared to control PRF. RESULTS: Vancomycin interfered with PRF formation. Gentamicin and linezolid did not change the physical properties of PRF and were released from membranes in the time intervals examined. The inhibition area analysis showed that control PRF had slight antibacterial activity against all tested microorganisms. Gentamicin-PRF had a massive antibacterial activity against all tested microorganisms. Results were similar for linezolid-PRF, except for its antibacterial activity against E. coli and P. aeruginosa that was comparable to control PRF. CONCLUSIONS: PRF loaded with antibiotics allowed the release of antimicrobial drugs in an effective concentration. Using PRF loaded with antibiotics after oral surgery may reduce the risk of post-operative infection, replace or enhance systemic antibiotic therapy while preserving the healing properties of PRF. Further studies are needed to prove that PRF loaded with antibiotics represents a topical antibiotic delivery tool for oral surgical procedures.


Assuntos
Anti-Infecciosos , Procedimentos Cirúrgicos Bucais , Fibrina Rica em Plaquetas , Humanos , Antibacterianos , Vancomicina/farmacologia , Staphylococcus aureus , Linezolida/farmacologia , Linezolida/uso terapêutico , Escherichia coli , Leucócitos , Gentamicinas/farmacologia
3.
World J Urol ; 39(9): 3433-3440, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-33442769

RESUMO

PURPOSE: To evaluate the efficacy of Lactobacillus paracasei CNCM I-1572 (L. casei DG®) in both prevention of symptomatic recurrences and improvement of quality of life in patients with chronic bacterial prostatitis (CBP). METHODS: Patients with CBP attending a single Urological Institution were enrolled in this phase IV study. At enrollment, all patients were treated with antibiotics in agreement with EAU guidelines and then were treated with L. casei DG® (2 capsules/day for 3 months). Clinical and microbiological analyses were carried out before (enrollment, T0) and 6 months (T2) after the treatment. Both safety and adherence to the treatment were evaluated 3 months (T1) after the enrollment. NIH Chronic Prostatitis Symptom Index (CPSI), International Prostate Symptom Score (IPSS) and Quality of Well-Being (QoL) questionnaires were used. The outcome measures were the rate of symptomatic recurrence, changes in questionnaire symptom scores and the reduction of antibiotic use. RESULTS: Eighty-four patients were included. At T2, 61 patients (72.6%) reported a clinical improvement of symptoms with a return to their clinical status before symptoms. A time dependent improvement in clinical symptoms with significant changes in NIH-CPSI, IPSS and QoL (mean difference T2 vs T0: 16.5 ± 3.58; - 11.0 ± 4.32; + 0.3 ± 0.09; p < 0.001), was reported. We recorded that L. casei DG® treatment induced a statistically significant decrease in both (p < 0.001) symptomatic recurrence [1.9/3 months vs 0.5/3 months] and antibiotic use [- 7938 UDD]. No clinically relevant adverse effects were reported. CONCLUSIONS: L. casei DG® prevents symptomatic recurrences and improves the quality of life in patients with CBP, reducing the antibiotic use.


Assuntos
Antibacterianos/uso terapêutico , Lacticaseibacillus casei , Prostatite/tratamento farmacológico , Prostatite/prevenção & controle , Qualidade de Vida , Adulto , Uso de Medicamentos/estatística & dados numéricos , Humanos , Masculino , Estudos Prospectivos , Recidiva , Resultado do Tratamento
4.
Int J Mol Sci ; 22(9)2021 Apr 22.
Artigo em Inglês | MEDLINE | ID: mdl-33922072

RESUMO

Thymic stromal lymphopoietin (TSLP) is an innate cytokine, belonging to the group of alarmins, which plays a key pathogenic role in asthma by acting as an upstream activator of cellular and molecular pathways leading to type 2 (T2-high) airway inflammation. Released from airway epithelial cells upon tissue damage induced by several noxious agents including allergens, viruses, bacteria, and airborne pollutants, TSLP activates dendritic cells and group 2 innate lymphoid cells involved in the pathobiology of T2-high asthma. Tezepelumab is a fully human monoclonal antibody that binds to TSLP, thereby preventing its interaction with the TSLP receptor complex. Preliminary results of randomized clinical trials suggest that tezepelumab is characterized by a good safety and efficacy profile in patients with severe, uncontrolled asthma.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Asma/tratamento farmacológico , Terapia Biológica/métodos , Resistência a Medicamentos/efeitos dos fármacos , Animais , Humanos
5.
Int Wound J ; 17(2): 485-490, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31876118

RESUMO

Wound healing, especially diabetic ones, is a relevant clinical problem, so it is not surprising that surgical procedures are often needed. To overcome invasive procedures, several strategies with drugs or natural compound are used. Recently, in an experimental study, we described an increase in keratinocyte proliferation after their exposition to quercetin plus oleic acid. In the present clinical study, we evaluated both the clinical efficacy and the safety of nano-hydrogel embedded with quercetin and oleic acid in the treatment of lower limb skin wound in patients with diabetes mellitus (DM). Fifty-six DM patients (28 men and 28 women, mean age 61.7 ± 9.2 years) unsuccessfully treated with mechanical compression were enrolled and randomised to receive an add on treatment with hyaluronic acid (0.2%) or nano-hydrogel embedded with quercetin and oleic acid. The treatment with nano-hydrogel embedded with quercetin and oleic acid significantly (P < .01) reduced the wound healing time, in comparison to hyaluronic acid (0.2%) without developing of adverse drug reactions, suggesting that this formulation could be used in the management of wound healing even if other clinical trials must be performed in order to validate this observation.


Assuntos
Pé Diabético/terapia , Hidrogéis/uso terapêutico , Ácido Oleico/uso terapêutico , Quercetina/uso terapêutico , Cicatrização , Idoso , Antioxidantes/uso terapêutico , Combinação de Medicamentos , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Projetos Piloto , Estudos Prospectivos
6.
Pulm Pharmacol Ther ; 54: 25-30, 2019 02.
Artigo em Inglês | MEDLINE | ID: mdl-30414440

RESUMO

Omalizumab is a humanized monoclonal antibody which binds to human immunoglobulins E (IgE), thus preventing their interactions with both high affinity and low affinity IgE receptors. Therefore, omalizumab is currently recommended for add-on biological therapy of uncontrolled allergic asthma, mainly characterized by type 2 airway eosinophilic inflammation. Because omalizumab has been the first, and for a long time the only available monoclonal antibody for add-on treatment of type 2 asthma, some long-term studies have been published which provide a clear evidence of the therapeutic effectiveness of the anti-IgE pharmacological strategy. Within this context, the present single-centre observational study refers to 15 patients with severe allergic asthma, treated with omalizumab for at least 5 years at the Respiratory Unit of "Magna Græcia" University Hospital located in Catanzaro, Italy. In these asthmatic subjects we observed significant increases in asthma control test (ACT) score, with respect to baseline (14.60 ±â€¯2.97), after 1 year (19.20 ±â€¯2.98; p < 0.0001) and 5 years (21.67 ±â€¯2.38; p < 0.0001) of add-on treatment with omalizumab. More importantly, omalizumab significantly lowered the number of annual asthma exacerbations (baseline: 3.66 ±â€¯2.01) after 1 year (0.83 ±â€¯1.14; p < 0.0001) and 5 years (0.63 ±â€¯0.99; p < 0.0001), respectively. This excellent therapeutic outcome made it possible to drastically decrease the daily oral intake of prednisone (baseline: 22.50 ±â€¯5.17 mg) after 1 year (1.83 ±â€¯4.06 mg; p < 0.0001), as well as after 5 years (1.66 ±â€¯3.61 mg; p < 0.0001). With regard to lung function, omalizumab significantly and persistently enhanced FEV1 (baseline: 1636 ±â€¯628.4 mL) after 1 year (2000 ±â€¯679.7 mL; p < 0.05) and 5 years (1929 ±â€¯564.8 mL; p < 0.05), respectively. Such relevant clinical and functional improvements were associated with reductions of blood eosinophil counts (baseline: 646.0 ±â€¯458.9 cells/µl), already detectable after 1 year (512.7 ±â€¯327.8 cells/µl; not significant), which reached the threshold of statistical significance after 5 years (326.0 ±â€¯171.8 cells/µl; p < 0.05). Therefore, these real-life data referring to our single-centre observational investigation further corroborate the long-term therapeutic ability of omalizumab to improve several clinical, functional and haematological signatures of severe type 2 asthma.


Assuntos
Antiasmáticos/uso terapêutico , Asma/tratamento farmacológico , Eosinófilos/metabolismo , Omalizumab/uso terapêutico , Administração Oral , Adulto , Asma/fisiopatologia , Feminino , Volume Expiratório Forçado , Glucocorticoides/administração & dosagem , Humanos , Itália , Masculino , Pessoa de Meia-Idade , Prednisona/administração & dosagem , Índice de Gravidade de Doença , Resultado do Tratamento
8.
Rheumatol Int ; 39(7): 1117-1123, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-31129712

RESUMO

Osteoarthritis (OA) is characterized by deterioration of the joints and associated with considerable pain and disability. OA is a chronic disease that requires intervention with both non-pharmacological and pharmacological treatment modalities and, inevitably, disease progression may necessitate successive treatments throughout the course of the disease. There is increasing data on the shortfalls of current pharmacological treatment of OA, and safety concerns associated with analgesic therapy use in OA arising from increasing evidence of gastrointestinal, cardiovascular, hepatic and renal adverse events with paracetamol and non-steroidal anti-inflammatory drugs (NSAIDs). Consequently, symptomatic slow-acting drugs for OA (SYSADOAs) may now be considered as a first-line treatment for knee OA, with a particular emphasis placed on the outstanding benefit: risk ratio of pharmaceutical-grade glucosamine and chondroitin sulfate formulations. In this short communication we review recent publications concerned with the safety of paracetamol, NSAIDs and SYSADOAs. Greater understanding of the benefits and limitations of current medications will lead to better disease management in OA. Furthermore, adherence to guideline recommendations across Europe and internationally, such as those from the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases (ESCEO), will promote evidence-based medicine and patient-centric care, ultimately leading to greater physician and patient satisfaction.


Assuntos
Analgésicos/uso terapêutico , Anti-Inflamatórios não Esteroides/uso terapêutico , Medicina Baseada em Evidências , Terapia por Exercício , Osteoartrite do Joelho/terapia , Guias de Prática Clínica como Assunto , Algoritmos , Humanos , Osteoartrite do Joelho/tratamento farmacológico
9.
Molecules ; 25(1)2019 Dec 23.
Artigo em Inglês | MEDLINE | ID: mdl-31878082

RESUMO

Epidemiologic studies suggest that dietary polyphenol intake is associated with a lower incidence of several non-communicable diseases. Although several foods contain complex mixtures of polyphenols, numerous factors can affect their content. Besides the well-known capability of these molecules to act as antioxidants, they are able to interact with cell-signaling pathways, modulating gene expression, influencing the activity of transcription factors, and modulating microRNAs. Here we deeply describe four polyphenols used as nutritional supplements: quercetin, resveratrol, epigallocatechin gallate (ECGC), and curcumin, summarizing the current knowledge about them, spanning from dietary sources to the epigenetic capabilities of these compounds on microRNA modulation.


Assuntos
Catequina/análogos & derivados , Curcumina/farmacologia , Quercetina/farmacologia , Resveratrol/farmacologia , Antioxidantes/química , Antioxidantes/farmacologia , Catequina/química , Catequina/farmacologia , Curcumina/química , Suplementos Nutricionais , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , MicroRNAs/genética , Estresse Oxidativo/efeitos dos fármacos , Polifenóis/química , Polifenóis/farmacologia , Quercetina/química , Resveratrol/química
10.
Exp Cell Res ; 354(1): 25-30, 2017 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-28300567

RESUMO

Functional studies indicate that essential cellular processes are controlled by Vitamin A derivatives. Among these the retinoic acid isoforms, all-trans- and 9-cis (9cRA), regulate the expression of various genes in both physiological and pathological conditions. Using several in vitro experimental models such as pancreatic ß-cells, pre-adipocytes and breast cancer cells with different phenotypes, we demonstrated the capability of 9cRA to modulate myotrophin (Mtpn) and miR-375 expressions. The 9cRA effect in pancreatic ß-cells line INS-1 832/13 point out a decreased expression of Mptn at both mRNA and protein levels associated to a concomitant increase of miR-375. We also studied the effect of this molecule on 3T3-L1 pre-adipocytes cells demonstrating a down-regulation of Mtpn and a dramatic increase of miR-375. Moreover, in the in vitro breast cancer model such as MDA-MB-231 and MCF-7 cells, 9cRA showed different effect on both Mtpn and miR-375 expression. In INS-1 832/13, 3T3-L1 pre-adipocytes and MCF-7 but not in MDA-MB-231, the effect of 9cRA on Mptn gene expression and its miR was under the control of RARs and RXRs receptors, as revealed by the exposure of these cell line to LE540 or HX603 receptor antagonists. In our findings 9cRA emerges has a hormone with a regulatory action on miR-375 that in most cases interfere with Mtpn expression.


Assuntos
Neoplasias da Mama/tratamento farmacológico , Peptídeos e Proteínas de Sinalização Intercelular/biossíntese , MicroRNAs/biossíntese , Tretinoína/administração & dosagem , Alitretinoína , Benzazepinas/metabolismo , Benzoatos/metabolismo , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Feminino , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Humanos , Células Secretoras de Insulina/metabolismo , Células Secretoras de Insulina/patologia , Peptídeos e Proteínas de Sinalização Intercelular/genética , Células MCF-7 , MicroRNAs/genética , RNA Mensageiro/biossíntese , Vitamina A/metabolismo
11.
World J Urol ; 35(2): 221-228, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27246847

RESUMO

OBJECTIVE: To compare fosfomycin trometamol (FT) and ciprofloxacin (CIP) for antibiotic prophylaxis in transrectal prostate biopsy (TR-PB). PATIENTS AND METHODS: Data for 1109 patients (mean age 66.7 ± 8.45) who underwent TR-PB between March to September 2015 in seven Italian urological institutions were retrospectively reviewed, of which 632 received FT (Group 1) and 477 received CIP (Group 2) for prophylaxis. We reviewed all urine culture results obtained after the procedure, all adverse drug reactions (ADRs) related to the drug and all febrile and/or symptomatic urinary tract infections (UTIs) occurring within 1 month after TR-PB. The rate of symptomatic UTIs and the rate of ADRs were considered the main outcome measures. RESULTS: In the total study population, 72/1109 (6.5 %) patients experienced symptomatic UTIs and among these 11 (0.9 % of total) had urosepsis. Out of 72, 53 (73.6 %) symptomatic UTIs were caused by fluoroquinolone-resistant strains. Out of 632, 10 (1.6 %) patients in Group 1 and 62/477 (12.9 %) patients in Group 2 had symptomatic UTIs (p < 0.001); in particular, 2/632 (0.3 %) patients in Group 1 and 9/477 (1.8 %) patients in Group 2 had urosepsis (p < 0.001). No differences were reported in terms of adverse events (0.6 vs 0.4 %; p = 0.70). A Charlson comorbidity index ≤1 and type of antimicrobial prophylaxis (FT) were found to be associated with a lower probability of symptomatic UTIs in the multivariate model. CONCLUSIONS: Antibiotic prophylaxis with FT for TR-PB had a lower rate of adverse events and a lower rate of symptomatic UTIs as compared with CIP. Fosfomycin trometamol appears as an attractive alternative prophylactic regimen in prostate biopsies.


Assuntos
Antibacterianos/uso terapêutico , Antibioticoprofilaxia , Ciprofloxacina/uso terapêutico , Fosfomicina/uso terapêutico , Complicações Pós-Operatórias/prevenção & controle , Próstata/diagnóstico por imagem , Próstata/patologia , Ultrassonografia de Intervenção , Infecções Urinárias/prevenção & controle , Idoso , Estudos de Coortes , Humanos , Biópsia Guiada por Imagem/efeitos adversos , Masculino , Complicações Pós-Operatórias/etiologia , Estudos Retrospectivos , Infecções Urinárias/etiologia
12.
Int Wound J ; 14(1): 233-240, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26991748

RESUMO

Chronic venous disease (CVD) and its most frightening complication, chronic venous ulceration (CVU), represent an important socioeconomic burden in the western world. Metalloproteinases have been identified in the pathogenesis of several vascular diseases such as venous problems. The aim of this study was to evaluate a broad range of metalloproteinases, such as matrix metalloproteinases (MMPs), ADAMs (a disintegrin and metalloproteinases) and ADAMTSs (a disintegrin and metalloproteinases with thrombospondin motifs) and their inhibitors, tissue inhibitor of metalloproteinases (TIMPs) and a related protein, neutrophil gelatinase-associated lipocalin (NGAL), in patients with CVD in order to correlate their serum levels with each stage of the disease. We performed a multicenter open-label study that comprised the enrolment of 541 patients with CVD of clinical stages C1-C6, (178 males, 363 females; mean age 57·29, median age 53·72, age range 29-81); 29 subjects without CVD were included in this study (9 males and 20 females; mean age 54·44, median age 50, age range 28-84) as the control group. Enzyme-linked immunosorbent assay (ELISA) was performed for measuring serum levels of proteases and related proteins. The study found that the serum elevation of MMP-2, ADAMTS-1 and ADAMTS-7 appeared to be correlated with the initial stages of CVD, whereas the serum elevation of MMP-1, MMP-8, MMP-9, NGAL, ADAM-10, ADAM-17 and ADAMTS-4 was particularly involved in skin change complications. This study showed that each stage of CVD may be described by particular patterns of metalloproteinases, and this may have therapeutic implications in discovering new targets and new drugs for the treatment of CVD.


Assuntos
Metaloproteinases da Matriz/sangue , Úlcera Varicosa/fisiopatologia , Cicatrização/fisiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Doença Crônica , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Itália , Masculino , Pessoa de Meia-Idade
13.
Arch Ital Urol Androl ; 89(1): 12-16, 2017 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-28403588

RESUMO

OBJECTIVE: In the last years there is a growing interest in nutraceutical substances that seems able to improve clinical symptoms in patients with lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH). In this paper, we evaluated both efficacy and safety of a combination of daidzein with isolase and zinc in patients with LUTS due to BPH. MATERIALS AND METHODS: In a phase I-II study clinical trial we enrolled patients with clinical and instrumental diagnosis of LUTS associated to BPH that received a six-month treatment with a combination of daidzein with isolase and zinc (1 tablet/day). Clinical, laboratory and instrumental analyses were carried out at the time of admission (T0) and 6 months after the ending of the treatment (T1). The Italian version of International Prostatic Symptom Score (IPSS), International Index of Erectile Function (IIEF-5) and Quality of Well-Being (QoL) questionnaires were used. The development of adverse drug reactions (ADRs) and drug interactions (DDIs) were recorded using the Naranjo scale and drug interaction probability scale. Student's t test and Anova test were used for statistical analysis, and the threshold of statistical significance was set at P < 0.05. RESULTS: We enrolled 71 patients, 62 (87.3%) completed the follow-up and we documented a significant differences between T0 and T1 in terms of IPSS [21.5 ± 1.2 vs 16.2 ± 1.5; (-4.8); p < 0.001], Cmax [9.7 ± 3.7 vs 15.3 ± 2.5; (+5.6); p < 0.001] and QoL [0.56 ± 0.15 vs 0.84 ± 0.19; (+0.28); p < 0.001]. In contrast, no significant difference were recorded in terms of IIEF-5 [p = 0.50] and PSA [p = 0.67]. Finally, we did not record any significant ADRs or DDIs during the study. CONCLUSIONS: In this study, we documented that a combination of daidzein with isolase and zinc, reduces the clinical symptoms of LUTS and improves the quality of life in patients with BPH, without the development of ADRs or DDIs.


Assuntos
Isoflavonas/administração & dosagem , Sintomas do Trato Urinário Inferior/tratamento farmacológico , Compostos Orgânicos/administração & dosagem , Hiperplasia Prostática/tratamento farmacológico , Zinco/administração & dosagem , Idoso , Interações Medicamentosas , Quimioterapia Combinada , Seguimentos , Humanos , Isoflavonas/efeitos adversos , Itália , Sintomas do Trato Urinário Inferior/etiologia , Masculino , Pessoa de Meia-Idade , Compostos Orgânicos/efeitos adversos , Hiperplasia Prostática/complicações , Qualidade de Vida , Resultado do Tratamento
14.
Int Wound J ; 13(5): 1011-3, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26369296

RESUMO

Chronic venous ulceration represents a very common event. Current standard treatment includes local wound care with the application of compression. We report the effects of platelet-rich plasma in patients with chronic venous ulcers, which is able to stimulate fibroblasts, macrophages and mesenchymal cells and growth factors in order to achieve re-epithelialisation and neovascularisation within the microenviroment of the wound. We also documented the efficacy of this method as the sole treatment without surgical procedures.


Assuntos
Antígenos CD34/uso terapêutico , Doença Crônica/tratamento farmacológico , Fibrina/uso terapêutico , Peptídeos e Proteínas de Sinalização Intercelular/uso terapêutico , Plasma Rico em Plaquetas , Úlcera Varicosa/tratamento farmacológico , Cicatrização/efeitos dos fármacos , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
15.
Int Wound J ; 13(6): 1237-1245, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26403997

RESUMO

Post-thrombotic syndrome (PTS) is a condition that can develop in about half of the patients with deep vein thrombosis (DVT) of lower limbs. In the present study, we evaluated the expression of inflammatory biomarkers in the early phases of DVT and their correlation with the onset of PTS. Patients were enrolled after the first episode of DVT and were followed up for 1, 4, 8, 12 and 18 months. At each visit, blood sample was collected to evaluate plasma levels of matrix metalloproteinase (MMP)-1,-2,-3,-7,-8 and -9 MMP inhibitors, TIMP-1,-2, neutrophil gelatinase-associated lipocalin (NGAL) and cytokines TNF-α and IL-6. Analysis included 201 patients [86 males (42·79%) and 115 females (57·21%); average age 56 ± 7 years]. Of the 201 patients, 47 (23·38%; 21 males, 26 females) developed PTS during the follow-up period. The control group was made up of 60 individuals without DVT (22 males and 38 females). High plasma levels of MMPs, NGAL and cytokines were recorded during the acute phase after DVT. Moreover, patients with PTS showed higher levels of MMP-1 and MMP-8 with respect to patients without PTS. There is a close relationship between DVT, the individual risk of PTS and specific biomarkers such as MMPs and other related molecules, which may help guide prevention and therapy based on the patient's individual risk profile, and has to be studied in future.


Assuntos
Metaloproteinases da Matriz/sangue , Síndrome Pós-Trombótica/sangue , Inibidor Tecidual de Metaloproteinase-1/sangue , Trombose Venosa/sangue , Análise de Variância , Biomarcadores/sangue , Progressão da Doença , Ensaio de Imunoadsorção Enzimática , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Síndrome Pós-Trombótica/fisiopatologia , Valor Preditivo dos Testes , Modelos de Riscos Proporcionais , Estudos Prospectivos , Medição de Risco , Índice de Gravidade de Doença , Trombose Venosa/complicações , Trombose Venosa/fisiopatologia
16.
Int Wound J ; 13(5): 854-9, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-25469650

RESUMO

Ischaemia reperfusion (I/R) injury refers to tissue damage caused when blood supply returns to the tissue after a period of ischaemia. Matrix metalloproteinases (MMPs), neutrophil gelatinase-associated lipocalin (NGAL) and cytokines are biomarkers involved in several vascular complications. The aim of this study was to evaluate the role of MMPs, NGAL and inflammatory cytokines in I/R syndrome. We conducted an open label, multicentric, parallel group study, between January 2010 and December 2013. Patients with acute limb ischaemia were enrolled in this study and were divided into two groups: (i) those subjected to fasciotomy and (ii) those not subjected to fasciotomy, according to the onset of compartment syndrome. Plasma and tissue values of MMPs and NGAL as well as plasma cytokines were evaluated. MMPs, NGAL and cytokine levels were higher in patients with compartment syndrome. Biomarkers evaluated in this study may be used in the future as predictors of I/R injury severity and its possible evolution towards post-reperfusion syndrome.


Assuntos
Síndromes Compartimentais/metabolismo , Lipocalina-2/metabolismo , Extremidade Inferior/irrigação sanguínea , Metaloproteinases da Matriz/metabolismo , Traumatismo por Reperfusão/metabolismo , Doença Aguda , Idoso , Biomarcadores/metabolismo , Estudos de Casos e Controles , Síndromes Compartimentais/etiologia , Síndromes Compartimentais/cirurgia , Citocinas/sangue , Fasciotomia , Feminino , Humanos , Masculino , Traumatismo por Reperfusão/complicações , Síndrome
17.
Int Wound J ; 13(1): 88-96, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24612734

RESUMO

Pathophysiological events involved in the onset of chronic venous ulceration (CVU) are inflammation, activation of polymorphonucleates (PMNs) and secretion of proteases such as matrix metalloproteinases (MMPs), which degrade extracellular matrix (ECM) that is a support for vascular and tissutal wall. MMPs, neutrophil gelatinase-associated lipocalin (NGAL) and inflammatory cytokines are overexpressed in CVUs and they could play a central role in pathophysiological mechanisms of skin lesion and delayed wound healing. Bioflavonoids, such as diosmin and other compounds, appear to have several provessel function activities including anti-inflammatory, antioxidant and phlebotonic effects and are widely used in the treatment of chronic venous disease (CVD)-related problems. In this article, we evaluated the effects of Axaven(®) , a new nutraceutical on both clinical and molecular parameters in patients with CVUs. During the study period, 83 patients with CVUs of both sexes were enrolled and divided into two groups: group A (treated group): 25 females and 19 males (median age is 67·7 years) received standard treatment (compression therapy and surgical correction of superficial venous incompetence) + Axaven(®) once a day for 8 months as adjunctive treatment. Group B (control group): 24 females and 15 males (median age is 65·2 years) were treated only with basic treatment according to their clinical conditions. In our study, the administration of Axaven(®) in patients with CVUs was able to decrease inflammatory cytokines, MMPs and NGAL, inducing an improvement of both symptoms with an increase of the speed of wound healing.


Assuntos
Suplementos Nutricionais , Úlcera Varicosa/terapia , Proteínas de Fase Aguda , Idoso , Idoso de 80 Anos ou mais , Doença Crônica/terapia , Bandagens Compressivas , Citocinas/sangue , Feminino , Humanos , Lipocalina-2 , Lipocalinas/sangue , Masculino , Metaloproteinases da Matriz/sangue , Pessoa de Meia-Idade , Proteínas Proto-Oncogênicas/sangue , Cicatrização
18.
Arch Ital Urol Androl ; 88(3): 177-182, 2016 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-27711089

RESUMO

OBJECTIVE: To date, the management of patients with chronic bacterial prostatitis (CBP) is not satisfactory, especially in terms of symptoms relief. Here, we evaluated the efficacy and the safety of a combination of serenoa repens, selenium and lycopene extract + bromelain and methylsulfonylmethane extract associated with levofloxacin in patients with CBP. MATERIALS AND METHODS: All patients with clinical and instrumental diagnosis of CBP, admitted to a single Urological Institution from March to June 2015 were enrolled in this phase III study. All enrolled patients were randomized into two groups: Group A received levofloxacin 500 mg o.d. for 14 days associated with lycopene and methylsulfonylmethane; Group B received levofloxacin (500 mg o.d. for 14 days) only. Clinical and microbiological analyses were carried out at the time of admission (T0) and during the followups at 1 month (T1) and 6 months (T2) from the end of the treatment. NIH Chronic Prostatitis Symptom Index (CPSI), International Prostatic Symptom Score (IPSS) and Quality of Well-Being (QoL) questionnaires were used. The main outcome measures were the rate of microbiological cure and the improvement in questionnaire results from baseline at the end of the follow-ups period. RESULTS: Forty patients were enrolled in Group A and 39 in Group B. During the follow-up (T1), we recorded a significant changes in terms of NIH-CPSI and IPSS in Group A (mean difference: 17.6 ± 2.65; 12.2 ± 2.33; p < 0.01; p < 0.05, respectively) and versus Group B at the intergroup analysis (mean difference: -9 ± 1.82; -8.33 ± 1.71; p < 0.05; p < 0.05, respectively). No differences were reported in terms of microbiological findings between the two groups. At the second follow-up visit (T2), questionnaire results demonstrated statistically significant differences between groups (p < 0.001). One patient in Group A (2.5%) and 7 patients (17.9%) in Group B showed a symptomatic and microbiological recurrence (p = 0.02). CONCLUSIONS: The combination of serenoa repens, selenium, lycopene + bromelain and methylsulfonylmethane extracts improved the clinical efficacy of levofloxacin in patients affected by CBP without the development of side effects.


Assuntos
Antibacterianos/uso terapêutico , Levofloxacino/uso terapêutico , Extratos Vegetais/uso terapêutico , Prostatite/tratamento farmacológico , Adulto , Antibacterianos/administração & dosagem , Antibacterianos/efeitos adversos , Bromelaínas/administração & dosagem , Bromelaínas/efeitos adversos , Bromelaínas/uso terapêutico , Carotenoides/administração & dosagem , Carotenoides/efeitos adversos , Carotenoides/uso terapêutico , Doença Crônica , Dimetil Sulfóxido/administração & dosagem , Dimetil Sulfóxido/efeitos adversos , Dimetil Sulfóxido/uso terapêutico , Quimioterapia Combinada , Seguimentos , Humanos , Levofloxacino/administração & dosagem , Levofloxacino/efeitos adversos , Licopeno , Masculino , Extratos Vegetais/administração & dosagem , Extratos Vegetais/efeitos adversos , Estudos Prospectivos , Prostatite/microbiologia , Selênio/administração & dosagem , Selênio/efeitos adversos , Selênio/uso terapêutico , Serenoa/química , Sulfonas/administração & dosagem , Sulfonas/efeitos adversos , Sulfonas/uso terapêutico , Inquéritos e Questionários , Fatores de Tempo , Resultado do Tratamento
19.
Mediators Inflamm ; 2015: 879783, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25878402

RESUMO

Asthma is a phenotypically heterogeneous chronic disease of the airways, characterized by either predominant eosinophilic or neutrophilic, or even mixed eosinophilic/neutrophilic inflammatory patterns. Eosinophilic inflammation can be associated with the whole spectrum of asthma severity, ranging from mild-to-moderate to severe uncontrolled disease, whereas neutrophilic inflammation occurs mostly in more severe asthma. Eosinophilic asthma includes either allergic or nonallergic phenotypes underlying immune responses mediated by T helper (Th)2 cell-derived cytokines, whilst neutrophilic asthma is mostly dependent on Th17 cell-induced mechanisms. These immune-inflammatory profiles develop as a consequence of a functional impairment of T regulatory (Treg) lymphocytes, which promotes the activation of dendritic cells directing the differentiation of distinct Th cell subsets. The recent advances in the knowledge of the cellular and molecular mechanisms underlying asthmatic inflammation are contributing to the identification of novel therapeutic targets, potentially suitable for the implementation of future improvements in antiasthma pharmacologic treatments.


Assuntos
Asma/imunologia , Eosinofilia/imunologia , Neutrófilos/imunologia , Animais , Diferenciação Celular , Citocinas/imunologia , Células Dendríticas/citologia , Humanos , Inflamação/imunologia , Linfócitos/citologia , Fenótipo , Linfócitos T Reguladores/imunologia , Células Th17/citologia , Células Th2/citologia
20.
J Stroke Cerebrovasc Dis ; 24(9): 2110-6, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26142258

RESUMO

BACKGROUND: Acute ischemic lesions on diffusion-weighted magnetic resonance imaging (DWI-MRI) are reliable predictors of recurrent stroke at 90 days. However, to date, limited information on transient ischemic attack (TIA) patients with positive DWI lesions for stroke risk from 1 to 5 years is available. In this study, we evaluated the role of positive DWI lesions and vascular risk factors on stroke, cardiovascular death, and mortality at 90 days (T0), 1 year (T1), and 5 years (T2). Moreover, we also evaluated the association between stroke risk and the presence of DWI lesions. METHODS: We performed an observational study on consecutive patients admitted to the emergency department of San Camillo-Forlanini Hospital, Rome, Italy, from January 2007 to November 2012. Over the study period, 4300 patients with TIA or ischemic stroke were examined by stroke specialists in an emergency room setting within 1 hour from admittance. RESULTS: In 510 of 4300 patients (11.86%), a TIA was diagnosed, and 445 patients satisfy the study inclusion criteria. For all 445 patients, the mean ABCD2 score was 4.35 ± 1.30. Using DWI-MRI, we identified acute ischemic lesions in 185 patients (41.57%). We did not observe any correlation between duration of symptoms, ABCD2 score, and positive or negative DWI lesions. Positivity for DWI was not associated with the presence of diabetes mellitus, hypertension, smoking habit, or age; however, an association with weakness was observed. We documented a time-dependent increase in the absolute risk of stroke: T0: 1.35% (95% confidence interval [CI], .81-2.8); T1: 4.78% (95% CI, 2.88-7.47); T2: 9.02% (95% CI, 4.66-5.70). We did not record any difference in stroke risk in patients with positive DWI lesions: T0: hazard ratio [HR], 1.43; 95% CI, .35-5.88; log-rank P = .60; T1: HR, 1.04; 95%CI, .42-2.61; log-rank P = .91; T2: HR, .83; 95% CI, .25-2.67; log-rank P = .86. CONCLUSIONS: This long-term follow-up study in TIA patients documents that both positive and negative DWI patients treated with fast-track had similar long-term risks of stroke.


Assuntos
Encéfalo/patologia , Imagem de Difusão por Ressonância Magnética , Ataque Isquêmico Transitório/complicações , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/etiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Itália , Estimativa de Kaplan-Meier , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Fatores de Tempo , Adulto Jovem
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