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1.
Surg Endosc ; 2024 Sep 30.
Artigo em Inglês | MEDLINE | ID: mdl-39347961

RESUMO

INTRODUCTION: Liraglutide has shown promising results in the field of bariatric surgery, preparing patients for surgery. However, chronic therapy is often correlated with gastrointestinal disorders, such as subclinical pancreatitis. The aim of this study was to evaluate the incidence of intraoperative adhesions and post-operative complications in patients undergoing laparoscopic sleeve gastrectomy (LSG) with or without prior therapy with liraglutide. METHODS: Clinical records of patients affected by obesity who underwent LSG between March 2017 and October 2022 were retrospectively reviewed using a prospectively maintained database. Patients were separated into two groups: those managed with preoperative liraglutide for 24 weeks prior to LSG, and those without prior medical therapy. Demographic data, operative time, intraoperative adhesions, and postoperative complications were reported and compared between two groups. RESULTS: Ninety-three patients underwent LSG without prior medical therapy, while 87 were treated with liraglutide before surgery. There were no significant differences in terms of gender, age, and comorbidities. After treatment with liraglutide, weight (117 vs 109 kg) and BMI (45 vs 42.2 kg/m2) were statistically lower than the group with no prior treatment to surgery. Thirty-two (37%) patients of the group treated with liraglutide had intraoperative adhesion vs nine (10%) patients of the control group (p < 0.005). There were no differences recorded between the two groups concerning post-operative complications. CONCLUSION: Liraglutide has introduced a new way to treat obesity, improving weight loss and comorbidities. Gastrointestinal disorders, such as subclinical pancreatitis, associated with GLP-1 analogue could explain the elevated incidence of intraoperative adhesions during bariatric surgery.

2.
Tech Coloproctol ; 28(1): 126, 2024 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-39287845

RESUMO

BACKGROUND: Hemorrhoidal disease (HD) significantly impacts patients' quality of life. This study aimed to evaluate the effectiveness of preoperative treatment with the micronized purified flavonoid fraction (MPFF) and a sucralfate-based rectal ointment in managing HD symptoms and reducing interventions. METHODS: A prospective quasi-experimental study including consecutive cases and controls matched on the basis of sex was performed in a tertiary referral center. Cases received systemic and local therapy for HD, consisting of a rectal ointment containing 3% sucralfate and herbal extracts plus MPFF, in addition to conservative therapy, while controls received conservative therapy alone. The hemorrhoidal disease symptom score (HDSS), the Short Health Scale for HD (SHS-HD) score, and the Vaizey Incontinence Score were used to evaluate symptoms severity and their impact on quality of life and continence. Intervention requirements were assessed at baseline (T0) and after 60 days of treatment (T1). RESULTS: Between January and December 2023, a total of 98 patients were assessed for eligibility. After exclusions, 56 patients were enrolled, with 28 in each group. Significant improvements were observed in HD symptom scores from T0 to T1: the intervention group showed a mean change in HDSS of -9 [95% confidence interval (CI) -10 to -8], and the control group showed no significant change (mean change of 0; 95% CI -1.5 to 0). At T1, a higher proportion of patients in the intervention group underwent less invasive interventions compared with controls (18% versus 11%). Age, treatment group, and baseline symptom severity significantly predicted post-treatment symptom scores. CONCLUSIONS: In our study the preoperative treatment with MPFF and a sucralfate-based rectal ointment demonstrated clinical benefits in managing HD symptoms and reducing interventions. Further prospective trials are warranted to confirm and explore additional therapeutic strategies.


Assuntos
Flavonoides , Hemorroidas , Pomadas , Cuidados Pré-Operatórios , Sucralfato , Humanos , Sucralfato/uso terapêutico , Sucralfato/administração & dosagem , Masculino , Feminino , Pessoa de Meia-Idade , Estudos Prospectivos , Estudos de Casos e Controles , Resultado do Tratamento , Flavonoides/administração & dosagem , Cuidados Pré-Operatórios/métodos , Adulto , Qualidade de Vida , Idoso , Administração Retal , Índice de Gravidade de Doença , Extratos Vegetais/administração & dosagem , Extratos Vegetais/uso terapêutico
3.
Tech Coloproctol ; 28(1): 139, 2024 Oct 04.
Artigo em Inglês | MEDLINE | ID: mdl-39365369

RESUMO

INTRODUCTION: Anal fissure (AF) poses a common challenge in clinical practice, prompting various treatment approaches. This multicenter study, conducted by the Italian Society of Colorectal Surgery, aimed to assess treatment trends in AF over a 10 year period. METHODS: A survey of proctologists and retrospective analysis of patient records were conducted to evaluate treatment modalities and outcomes across six different clinical scenarios based on AF presentation (acute/chronic) stratified by sphincter function (normal/hypertonic/hypotonic). RESULTS: Analysis of data from 17 principal investigators and 22,016 patients revealed significant variability in treatment approaches, influenced by factors such as symptom duration, anal tone, and surgeon preference. Conservative treatments were commonly utilized, while surgical interventions were reserved for refractory cases. Specifically, pharmaceutical treatment was administered to 66-75% of patients in cases of acute AF and 63-67% for chronic AF, while 10-15% underwent anal dilation, and < 2% received botulinum toxin injection. Among medical treatments, nifedipine with lidocaine and glycerin film-forming ointments were the most utilized. The most performed surgical techniques were fissurectomy and anoplasty, except for patients with chronic AF and hypertonic sphincter where sphincterotomy prevailed. Trends in treatment utilization varied depending on the clinical scenario, with notable shifts observed over time. CONCLUSIONS: This study provides insights into the evolving landscape of AF management, highlighting the need for further research to elucidate optimal treatment strategies and improve patient outcomes.


Assuntos
Fissura Anal , Humanos , Fissura Anal/terapia , Estudos Retrospectivos , Itália , Feminino , Masculino , Adulto , Pessoa de Meia-Idade , Padrões de Prática Médica/estatística & dados numéricos , Padrões de Prática Médica/tendências , Doença Crônica , Lidocaína/administração & dosagem , Lidocaína/uso terapêutico , Canal Anal/cirurgia , Nifedipino/uso terapêutico , Tratamento Conservador/estatística & dados numéricos , Tratamento Conservador/métodos , Dilatação/estatística & dados numéricos , Dilatação/métodos , Doença Aguda , Resultado do Tratamento , Esfincterotomia/estatística & dados numéricos , Esfincterotomia/métodos , Nitroglicerina/uso terapêutico , Nitroglicerina/administração & dosagem
4.
Tech Coloproctol ; 28(1): 95, 2024 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-39103661

RESUMO

BACKGROUND: Anastomotic leakage (AL) is the most frequent life-threating complication following colorectal surgery. Several attempts have been made to prevent AL. This prospective, randomized, multicentre trial aimed to evaluate the safety and efficacy of nebulised modified cyanoacrylate in preventing AL after rectal surgery. METHODS: Patients submitted to colorectal surgery for carcinoma of the high-medium rectum across five high-volume centres between June 2021 and January 2023 entered the study and were randomized into group A (anastomotic reinforcement with cyanoacrylate) and group B (no reinforcement) and followed up for 30 days. Anastomotic reinforcement was performed via nebulisation of 1 mL of a modified cyanoacrylate glue. Preoperative features and intraoperative and postoperative results were recorded and compared. The study was registered at ClinicalTrials.gov (ID number NCT03941938). RESULTS: Out of 152 patients, 133 (control group, n = 72; cyanoacrylate group, n = 61) completed the follow-up. ALs were detected in nine patients (12.5%) in the control group (four grade B and five grade C) and in four patients (6.6%), in the cyanoacrylate group (three grade B and one grade C); however, despite this trend, the differences were not statistically significant (p = 0.36). However, Clavien-Dindo complications grade > 2 were significantly higher in the control group (12.5% vs. 3.3%, p = 0.04). No adverse effects related to the glue application were reported. CONCLUSION: The role of modified cyanoacrylate application in AL prevention remains unclear. However its use to seal colorectal anastomoses is safe and could help to reduce severe postoperative complications.


Assuntos
Anastomose Cirúrgica , Fístula Anastomótica , Cianoacrilatos , Reto , Humanos , Fístula Anastomótica/prevenção & controle , Fístula Anastomótica/etiologia , Feminino , Masculino , Estudos Prospectivos , Idoso , Pessoa de Meia-Idade , Cianoacrilatos/administração & dosagem , Anastomose Cirúrgica/efeitos adversos , Anastomose Cirúrgica/métodos , Reto/cirurgia , Adesivos Teciduais/uso terapêutico , Técnicas de Sutura , Neoplasias Retais/cirurgia , Resultado do Tratamento
5.
Mol Plant Microbe Interact ; 27(7): 747-56, 2014 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-24654979

RESUMO

The complex interactions between aphids and their host plant are species-specific and involve multiple layers of recognition and defense. Aphid salivary proteins, which are released into the plant during phloem feeding, are a likely mediator of these interactions. In an approach to identify aphid effectors that facilitate feeding from host plants, eleven Myzus persicae (green peach aphid) salivary proteins and the GroEL protein of Buchnera aphidicola, a bacterial endosymbiont of this aphid species, were expressed transiently in Nicotiana tabacum (tobacco). Whereas two salivary proteins increased aphid reproduction, expression of three other aphid proteins and GroEL significantly decreased aphid reproduction on N. tabacum. These effects were recapitulated in stable transgenic Arabidopsis thaliana plants. Further experiments with A. thaliana expressing Mp55, a salivary protein that increased aphid reproduction, showed lower accumulation of 4-methoxyindol-3-ylmethylglucosinolate, callose and hydrogen peroxide in response to aphid feeding. Mp55-expressing plants also were more attractive for aphids in choice assays. Silencing Mp55 gene expression in M. persicae using RNA interference approaches reduced aphid reproduction on N. tabacum, A. thaliana, and N. benthamiana. Together, these results demonstrate a role for Mp55, a protein with as-yet-unknown molecular function, in the interaction of M. persicae with its host plants.


Assuntos
Afídeos/metabolismo , Proteínas de Insetos/metabolismo , Proteínas de Insetos/farmacologia , Nicotiana/metabolismo , Animais , Arabidopsis/fisiologia , Buchnera/fisiologia , Regulação da Expressão Gênica de Plantas/fisiologia , Folhas de Planta/efeitos dos fármacos , Proteínas de Plantas/genética , Proteínas de Plantas/metabolismo , Plantas Geneticamente Modificadas , Reprodução , Nicotiana/genética
6.
J Chem Ecol ; 40(8): 869-77, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25082103

RESUMO

Lineages of the generalist hemipteran herbivore Myzus persicae (green peach aphid) that have expanded their host range to include tobacco often have elevated nicotine tolerance. The tobacco-adapted M. persicae lineage used in this study was able to reproduce on nicotine-containing artificial diets at concentrations that were 15-fold higher than those that were lethal to a non-adapted M. persicae lineage. Fecundity of the nicotine-tolerant M. persicae lineage was increased by 100 µM nicotine in artificial diet, suggesting that this otherwise toxic alkaloid can serve as a feeding stimulant at low concentrations. This lineage also was pre-adapted to growth on tobacco, exhibiting no drop in fecundity when it was moved onto tobacco from a different host plant. Although growth of the non-tobacco-adapted M. persicae lineage improved after three generations on tobacco, this higher reproductive rate was not associated with increased nicotine tolerance. Myzus persicae gene expression microarrays were used to identify transcripts that are up-regulated in response to nicotine in the tobacco-adapted lineage. Induced expression was found for CYP6CY3, which detoxifies nicotine in M. persicae, other genes encoding known classes of detoxifying enzymes, and genes encoding secreted M. persicae salivary proteins.


Assuntos
Adaptação Fisiológica , Afídeos/fisiologia , Comportamento Alimentar , Cadeia Alimentar , Nicotina/metabolismo , Animais , Afídeos/genética , Afídeos/crescimento & desenvolvimento , Dieta , Nicotiana/química
7.
Updates Surg ; 76(1): 163-167, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38123906

RESUMO

The management of trans-sphincteric anal fistula (TAF) includes several surgical options; however, during the COVID-19 pandemic, the access to the operating rooms was severely limited, leaving only the choice of minimally invasive procedures. This study aimed to evaluate the safety and effectiveness of the slow cutting seton technique for TAF performed in an outpatient setting during the COVID-19 pandemic.Patients treated for TAF between January 2020 and July 2022 and followed-up for at least 12 months were retrospectively evaluated. A vascular silicone tie used as seton was positioned in the fistula tract using a Lockhart-Mummery fistula probe. The seton was maintained in moderate tension until the sphincter muscle was passed. Percentage and time for healing, recurrence, SF-36, VAS and Vaizey's Score were recorded.Fifty-eight patients [36 male/22 female, median age 56.5 years (IQR 41.25-65.75) [with TAF were included. After a median time of 4 months, complete healing occurred in 53 cases (91.5%), the anal pain VAS decreased from 6 to 0, the anal incontinence scores did not change significantly and the QoL improved significantly in all the SF36 domains. No complications were recorded, but the fistula recurred in five cases (8.5%). Two of them had additional seton treatment, and three underwent other surgical procedures after the COVID-19 emergency.The slow cutting seton technique is a safe and effective treatment for outpatient procedure with minimal patient discomfort. This treatment option in healthcare delivery for TAF should be reconsidered, even outside the limited in-hospital access during the COVID-19 pandemic.


Assuntos
COVID-19 , Fístula Retal , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Estudos Retrospectivos , Qualidade de Vida , Pandemias , Resultado do Tratamento , Fístula Retal/cirurgia , Canal Anal/cirurgia
8.
Proc Natl Acad Sci U S A ; 107(20): 9464-9, 2010 May 18.
Artigo em Inglês | MEDLINE | ID: mdl-20439724

RESUMO

Endosperm and embryo tissues from the seeds of Euonymus alatus (Burning Bush) accumulate high levels of 3-acetyl-1,2-diacyl-sn-glycerols (acTAGs) as their major storage lipids. In contrast, the aril tissue surrounding the seed produces long-chain triacylglycerols (lcTAGs) typical of most other organisms. The presence of the sn-3 acetyl group imparts acTAGs with different physical and chemical properties, such as a 30% reduction in viscosity, compared to lcTAGs. Comparative transcriptome analysis of developing endosperm and aril tissues using pyrosequencing technology was performed to isolate the enzyme necessary for the synthesis of acTAGs. An uncharacterized membrane-bound O-acyltransferase (MBOAT) family member was the most abundant acyltransferase in the endosperm but was absent from the aril. Expression of this MBOAT in yeast resulted in the accumulation of acTAGs but not lcTAG; hence, the enzyme was named EaDAcT (Euonymus alatus diacylglycerol acetyltransferase). Yeast microsomes expressing EaDAcT possessed acetyl-CoA diacylglycerol acetyltransferase activity but lacked long-chain acyl-CoA diacylglycerol acyltransferase activity. Expression of EaDAcT under the control of a strong, seed-specific promoter in Arabidopsis resulted in the accumulation of acTAGs, up to 40 mol % of total TAG in the seed oil. These results demonstrate the utility of deep transcriptional profiling with multiple tissues as a gene discovery strategy for low-abundance proteins. They also show that EaDAcT is the acetyltransferase necessary and sufficient for the production of acTAGs in Euonymus seeds, and that this activity can be introduced into the seeds of other plants, allowing the evaluation of these unusual TAGs for biofuel and other applications.


Assuntos
Biocombustíveis , Diacilglicerol O-Aciltransferase/metabolismo , Diglicerídeos/biossíntese , Euonymus/enzimologia , Óleos de Plantas , Sementes/enzimologia , Sequência de Aminoácidos , Arabidopsis , Sequência de Bases , Biologia Computacional , Primers do DNA/genética , DNA Complementar/genética , Diacilglicerol O-Aciltransferase/genética , Euonymus/metabolismo , Perfilação da Expressão Gênica , Funções Verossimilhança , Espectrometria de Massas , Modelos Genéticos , Dados de Sequência Molecular , Filogenia , Sementes/metabolismo , Análise de Sequência de DNA , Viscosidade , Leveduras
9.
Front Surg ; 10: 1145170, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37035554

RESUMO

Introduction: Anal fissure is one of the most common anal disease characterized by intense anal pain, and deterioration of patients quality of life. Treatment is mainly based on the topical administration of calcium antagonist or nitric oxide ointments, and in cases refractory to medical treatment patients can undergo surgery. This study aims to assess the efficacy and safety of Levorag emulgel in the treatment of acute and chronic fissures using of a validated scoring system. Material and Methods: A prospective observational study was carried out on patients with anal fissures between February and May 2022. The efficacy of the treatment was evaluated using the REALISE score, a new validated scoring system that rates VAS for pain, NSAID use, pain duration, bleeding, and quality of life (QoL), recorded after 10, 20 and 30 days from the beginning of treatment. Results: Forty patients (median age 46 years, IQR 29-57, 70% women) with acute (22, 55%) or chronic (18, 45%) anal fissures entered the study. The median anal pain score according to the VAS scale decreased significantly from 7 (IQR 4.7-8) at baseline to 1 (IQR 0-3.2, p = 0.05) after 20 days. At the 30-day proctological examination, 22 patients (61%) were pain free (median VAS of 0, IQR 0-1.2, p < 0.05). Pain duration after defecation measured according to the REALISE score, showed a significant decrease after 10 days, from a median value of 2 (IQR 1-4) to 1 (IQR 1-1.2) (p < 0.005). The median value of the REALISE score decreased significantly, from 15 (IQR 11-19.25) at first proctological evaluation to 4 (IQR 4-6, p = 0.139) after 30 days of treatment. At day 30, complete fissure healing was achieved in 30 patients (80%). The healing rate was 82% and 78% in patients with acute and chronic anal fissures, respectively. Conclusion: The use of Levorag® Emulgel may represent a safe and effective non-invasive first line treatment in patients affected by acute or chronic anal fissure.

10.
Eur Rev Med Pharmacol Sci ; 21(6): 1397-1404, 2017 03.
Artigo em Inglês | MEDLINE | ID: mdl-28387885

RESUMO

OBJECTIVE: Diverticular disease (DD) of the colon has an increasing burden on health services. The effectiveness of rifaximin for the treatment of DD, is not yet established. The aim of this study is to assess the impact of long-term treatment with rifaximin or mesalazine in a 10-day schedule for the prevention of recurrent diverticulitis. PATIENTS AND METHODS: This is a retrospective study. We identified all consecutive patients with DD and previous acute diverticulitis (AD) in our outpatients' database; 124 patients, were included. The recommended therapy consisted of a ten-day/month treatment with either rifaximin (400 mg bid), or mesalazine (2.4 g/daily). Primary end point was AD recurrence. RESULTS: Between 2010 and 2014, 72 patients were treated with rifaximin and 52 with mesalazine. During a median follow-up of 15 months (range 1-50), we observed 21 episodes of AD among users of either rifaximin (n=7; 0.54 per 100 person-months), or mesalazine group (n=14; 1.46 per 100 person-months). Kaplan-Meier survival estimates of recurrent AD significantly differed between rifaximin and mesalazine groups (p=0.015). The multivariate Cox regression analysis showed that AD recurrence was significantly associated with therapy (rifaximin vs. mesalazine, adjusted HR 0.27; 95% CI: 0.10 to 0.72), age and gender. CONCLUSIONS: Long-term treatment with rifaximin in a 10-day schedule appears more effective than mesalazine in preventing recurrent AD.


Assuntos
Diverticulite/tratamento farmacológico , Mesalamina/administração & dosagem , Rifamicinas/administração & dosagem , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva , Estudos Retrospectivos , Rifaximina , Resultado do Tratamento
11.
Arch Intern Med ; 156(20): 2321-32, 1996 Nov 11.
Artigo em Inglês | MEDLINE | ID: mdl-8911239

RESUMO

BACKGROUND: The policy of prevention of nonsteroidal anti-inflammatory drug (NSAID)-induced gastrointestinal mucosal injury is still a matter of discussion. Indeed, no consensus exists as to whether cotherapy with histamine type 2 (H2) blockers or misoprostol is cost-effective. METHODS: Placebo-controlled randomized clinical trials on the use of H2 blockers or misoprostol, as preventive agents (published between) January 1970 and December 1994), were identified through MEDLINE and reference lists from literature reviews. Crude rates of endoscopic lesions with short-term (< 2 weeks) and long-term (> 4 weeks) NSAID treatment were systematically assessed by 3 independent observers based on the intention-to-treat principle. The method of DerSimonian and Laird was used for pooling data. Heterogeneity was evaluated by using the Q statistic and the plots described by L'Abbe and colleagues. RESULTS: Twenty-four trials met the criteria for entry into the study. Gastric ulcer was found to be significantly reduced by misoprostol-both in short-term (pooled rate difference [RD], -13%, 95% confidence interval [CI], -26% to -1%) and long-term (RD, -8%; 95% CI, -18% to -1%) NSAID treatment-but not by H2 blockers. The risk for duodenal ulcer was significantly reduced by H2 blockers (RD, -2%; 95% CI, -5% to -0.2%) and by misoprostol (RD, -3%; 95% CI, -6% to -0.1%) in long-term but not in short-term administration. CONCLUSIONS: The use of misoprostol, but no that of H2 blockers, was beneficial in the prevention of NSAID-induced gastric ulcers. The number of patients to be treated to prevent 1 gastric ulcer with short- and long-term NSAID treatment is 11 and 15, respectively, for an intermediate baseline risk of 10%. Misoprostol and H2 blockers were beneficial in the long-term prevention of duodenal ulcers; misoprostol or H2 blockers in the short-term prevention of duodenal ulcers remains to be confirmed.


Assuntos
Anti-Inflamatórios não Esteroides/efeitos adversos , Antiulcerosos/uso terapêutico , Úlcera Duodenal/induzido quimicamente , Úlcera Duodenal/prevenção & controle , Antagonistas dos Receptores H2 da Histamina/uso terapêutico , Úlcera Gástrica/induzido quimicamente , Úlcera Gástrica/prevenção & controle , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Análise Custo-Benefício , Quimioterapia Combinada , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ensaios Clínicos Controlados Aleatórios como Assunto , Projetos de Pesquisa , Fatores de Risco , Fatores de Tempo
12.
Dig Liver Dis ; 32(2): 138-51, 2000 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-10975790

RESUMO

BACKGROUND: 1-2% of all patients under non-steroidal anti-inflammatory drug therapy are exposed to serious upper gastrointestinal complications. The policy of prevention of non-steroidal anti-inflammatory drug-induced gastrointestinal mucosal injury by using misoprostol or suppressing acid secretion is still a matter of debate. AIMS: To discuss the effectiveness of prophylaxis of a gastrointestinal complication during non-steroidal anti-inflammatory drug treatment, according to the number and relevance of risk factors. PATIENTS: A total of 8.843 patients with rheumatoid arthritis, admitted to the widest prospective multicentre mega-trial, on 6-month complication prevention of non-steroidal anti-inflammatory drug-induced ulcers. METHODS: The results are presented in terms of the number of patients to be treated (number needed to treat) in order to prevent one serious upper gastrointestinal complication, and corrected for the number of patients, that receiving the prophylaxis therapy, would lead to one additional withdrawal (number needed to harm). RESULTS: The base-line risk for a complication strongly depended on the number and relevance of risk factors: history of peptic ulcer disease, of gastrointestinal bleeding, of cardiovascular disease, and age. In the general study population, the relative risk reduction of gastrointestinal complications with misoprostol was 40%: thus the number needed to treat to prevent 1 event was 250 in the experimental period (6 months) or 125 when normalized at one-year treatment (1 year number needed to treat]. When considering the prophylaxis gain in intermediate (risk 1-2%) or high risk subjects (patients with a probability of an event over 2%, for the presence of 1 important risk factor or multiple factors), the 1-year number needed to treat rapidly drops from about 100 to about 17. The number needed to harm for one withdrawal was 18. The number needed to treat corrected for withdrawals in order to avoid major complications rises from 125 to 132 in the general population of non-steroidal anti-inflammatory drug users; from 102 to 105 in subjects at intermediate risk, such as patients with history of cardiovascular disease; in the groups at high risk, from 26 to 27 (patients with history of peptic ulcer disease), and from 16 to 17 (patients with history of peptic ulcer disease, cardiovascular disease and aged over 65 years). CONCLUSIONS: Patients at intermediate and high risk for complications from non-steroidal anti-inflammatory drug-induced ulcers should be considered for prophylaxis. In this group of patients, misoprostol prevention of severe complications is effective, and its clinical relevance similar to that of other preventive measures in medical practice.


Assuntos
Anti-Inflamatórios não Esteroides/efeitos adversos , Antiulcerosos/uso terapêutico , Gastroenteropatias/prevenção & controle , Mucosa Intestinal/efeitos dos fármacos , Misoprostol/uso terapêutico , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Artrite Reumatoide/tratamento farmacológico , Método Duplo-Cego , Úlcera Duodenal/induzido quimicamente , Úlcera Duodenal/patologia , Úlcera Duodenal/prevenção & controle , Endoscopia Gastrointestinal , Feminino , Gastroenteropatias/induzido quimicamente , Gastroenteropatias/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Fatores de Risco , Úlcera Gástrica/induzido quimicamente , Úlcera Gástrica/patologia , Úlcera Gástrica/prevenção & controle
13.
Curr Opin Plant Biol ; 16(4): 451-6, 2013 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-23850072

RESUMO

Aphid salivary proteins, which are injected into the phloem sieve elements during feeding, play a central role in plant-aphid interactions. Among the dozens of known salivary proteins, many have no homology to proteins from other organisms. These aphid-specific proteins likely have evolved as effectors that inhibit plant defenses, prevent phloem sieve-element occlusion, and otherwise promote the unique phloem feeding style. However, aphid salivary proteins also are recognized by plants to mount defense responses and are likely a major factor in limiting the host range of particular aphid species and biotypes. Newly developed research tools provide excellent opportunities for analyzing the mostly unknown functions of aphid salivary proteins and elucidating their contribution to the complex interactions between aphids and their host plants.


Assuntos
Afídeos/fisiologia , Embriófitas/fisiologia , Herbivoria , Proteínas de Insetos/genética , Proteínas e Peptídeos Salivares/genética , Animais , Afídeos/genética , Proteínas de Insetos/metabolismo , Floema , Proteínas e Peptídeos Salivares/metabolismo
14.
Aliment Pharmacol Ther ; 33(8): 902-10, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21366632

RESUMO

BACKGROUND: Diverticular disease of the colon is a common gastrointestinal disease. Although most patients remain asymptomatic for their whole life, about 20-25% present symptoms related to 'diverticular disease'. Several randomised trials verified efficacy of a poorly absorbed antibiotic, such as rifaximin-α (rifaximin), in soothing symptoms and preventing diverticulitis. AIM: To evaluate the long-term efficacy administration of rifaximin plus fibre supplementation vs. fibre supplementation alone, on symptoms and complications, in patient with symptomatic uncomplicated diverticular disease. METHODS: Pertinent studies were selected from the Medline, and the Cochrane Library Databases, references from published articles and reviews. Conventional meta-analysis according to DerSimonian and Laird method was used for the pooling of the results. The outcomes were 1- year complete symptom relief, and 1- year complication incidence. The rate difference (RD, with 95% CI) and the Number Needed to Treat (NNT) were used as measure of the therapeutic effect on each outcome. RESULTS: Four prospective randomised trials including 1660 patients were selected. The pooled RD for symptom relief was 29.0% (rifaximin vs. control; 95% CI 24.5-33.6%; P<0.0001; NNT=3). The pooled RD for complication rate was -1.7% in favour of rifaximin (95% CI -3.2 to -0.1%; P=0.03; NNT=59). When considering only acute diverticulitis, the pooled RD in the treatment group was -2% (95% CI -3.4 to -0.6%; P=0.0057; NNT=50). CONCLUSIONS: In symptomatic uncomplicated diverticular disease, treatment with rifaximin plus fibre supplementation is effective in obtaining symptom relief and preventing complications at 1 year.


Assuntos
Fibras na Dieta/administração & dosagem , Divertículo do Colo/tratamento farmacológico , Fármacos Gastrointestinais/uso terapêutico , Rifamicinas/administração & dosagem , Estudos de Casos e Controles , Divertículo do Colo/complicações , Humanos , Rifaximina , Resultado do Tratamento
16.
J Arthroplasty ; 19(2): 235-7, 2004 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-14973869

RESUMO

Potential wound healing complications after total knee arthroplasty includes infection, skin edge necrosis, and dehiscence. We report another type of wound problem: the rapid development of a skin malignancy (or premalignancy) along an immature scar after knee arthroplasty.


Assuntos
Artroplastia do Joelho , Carcinoma de Células Escamosas/etiologia , Complicações Pós-Operatórias , Neoplasias Cutâneas/etiologia , Idoso , Idoso de 80 Anos ou mais , Carcinoma de Células Escamosas/cirurgia , Cicatriz/etiologia , Humanos , Masculino , Período Pós-Operatório , Neoplasias Cutâneas/cirurgia
17.
Dig Dis ; 13 Suppl 1: 62-74, 1995 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-7697903

RESUMO

In order to provide a systematic overview of the available information on the prevention of nonsteroidal anti-inflammatory drug (NSAID)-induced gastrointestinal mucosal injury, we performed a meta-analysis based on all the in extenso published randomized clinical trials comparing H2-blockers or misoprostol to placebo for the prevention of NSAID-induced gastrointestinal mucosal injury in arthritis patients or normal subjects. The main endpoints after NSAID therapy were considered the number of subjects developing gastric ulcer, or clinically relevant gastric lesions (i.e. more than 10 erosions or 1 ulcer), or duodenal ulcer, or clinically relevant duodenal lesions (i.e. more than 10 erosions or 1 ulcer). The total number of patients studied was 1,955, and that of normal subjects was 715. Results were analyzed by the DerSimonian and Laird method, as well as by the Peto one. The data available from the trials suggest that misoprostol prevention is of benefit in patients under NSAID treatment for the prevention of NSAID-induced gastroduodenal mucosal injury. The effect of prevention is statistically significant with both methods, and ranges from -42% (duodenal ulcer) to -79% (gastric ulcer). The prevention estimates for gastric and duodenal erosions are in between. H2-blockers seem to be less effective: prevention is not indeed demonstrable for the more relevant lesions, like gastric and duodenal ulcer.


Assuntos
Anti-Inflamatórios não Esteroides/efeitos adversos , Úlcera Duodenal/prevenção & controle , Antagonistas dos Receptores H2 da Histamina/uso terapêutico , Misoprostol/uso terapêutico , Úlcera Gástrica/prevenção & controle , Artrite/tratamento farmacológico , Úlcera Duodenal/induzido quimicamente , Humanos , Úlcera Gástrica/induzido quimicamente
18.
Dig Dis Sci ; 41(1): 22-5, 1996 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-8565760

RESUMO

The effects of Sulglycotide were evaluated in a pilot study of active H. pylori+ atrophic gastritis. Ten informed patients (mean age 51 +/- 13 years) entered a double-blind study. Five received Sulglycotide 400 mg three times a day for one year, the other 5, placebo. At 0, 30, 90, 270, and 360 days of treatment, patients underwent endoscopic examinations with multiple biopsies. Morphometric studies (number of inflammatory cells and percent gland volume), morphologic studies (according to the Sydney system), and flow cytofluorimetry were performed in all cases. Compared to findings in the placebo group, patients treated with Sulglycotide showed a reduced number of inflammatory cells and an increase in gland volume 120 days after treatment. While the difference was not statistically significant, the trend was confirmed by the morphologic patterns. Flow cytofluorimetry revealed an increase in the percentage of cells in the G2 phase (full maturation) and a parallel drop in the S phase (premitotic synthesis) in the Sulglycotide group only in the first three months. These data would appear to indicate an acceleration of gastric epithelial cell maturation and a decrease in the inflammatory infiltrate under the effect of Sulglycotide.


Assuntos
Antiulcerosos/uso terapêutico , Gastrite Atrófica/patologia , Infecções por Helicobacter/complicações , Helicobacter pylori , Sialoglicoproteínas/uso terapêutico , Adulto , Ciclo Celular , Doença Crônica , Método Duplo-Cego , Epitélio/patologia , Feminino , Citometria de Fluxo , Mucosa Gástrica/patologia , Gastrite Atrófica/tratamento farmacológico , Gastrite Atrófica/microbiologia , Humanos , Inflamação/patologia , Masculino , Pessoa de Meia-Idade , Projetos Piloto
19.
Epidemiology ; 6(1): 49-54, 1995 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-7888445

RESUMO

Although the etiologic relation between nonsteroidal antiinflammatory drug (NSAID) use and gastrointestinal lesions is well documented, newly introduced NSAIDs deserve a fresh examination for their risk/benefit ratio. To estimate the association between consumption of ketorolac and the occurrence of gastroduodenal lesions, we conducted a case-control study. The study population comprised 600 outpatients with a confirmed endoscopic diagnosis of ulcer and erosion in 1991 and 1992 and 6,000 community controls matched by age and sex. We retrieved the prescription history through a computerized prescription monitoring system. We defined exposure to each study drug as "current" (month of endoscopy and preceding month), "recent" (second or third month preceding endoscopy). and "past" (fourth to sixth month preceding endoscopy). Current users of NSAIDs showed a 30% increase in the incidence of gastroduodenal lesions [odds ratio (OR) = 1.3; 95% confidence interval (CI) = 0.98 - 1.8] after adjustment for recent or past use of any NSAID, recent or past gastrotoxic therapy, recent or past use of gastroprotective drugs, and recent or past use of any other drug. Among NSAIDs, ketorolac was the only one showing a distinctly elevated risk of gastroduodenal lesions (OR = 4.2; 95% CI = 1.9-9.4). Current use of any NSAID was associated with almost a doubling of risk for ulcer alone (OR = 1.9; 95% CI = 1.3-3.0); no elevation in risk was found for erosions. The adjusted relative risk for ulcer associated with current use of ketorolac was 9.8 (95% CI = 3.4-28.10. Recent and past use of NSAIDs does not increase the risk of ulcer.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Anti-Inflamatórios não Esteroides/efeitos adversos , Gastroenteropatias/induzido quimicamente , Tolmetino/análogos & derivados , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Casos e Controles , Feminino , Gastroenteropatias/epidemiologia , Humanos , Itália/epidemiologia , Cetorolaco , Masculino , Pessoa de Meia-Idade , Úlcera Péptica/induzido quimicamente , Tolmetino/efeitos adversos
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