61 results on '"Lima GC"'
Search Results
2. A CEFALOCROMINA EXIBE ATIVIDADE CITOTÓXICA EM MODELOS CELULARES DE LEUCEMIA MIELOIDE AGUDA
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Lima, GC, primary, Vicari, HP, additional, Nascimento, MCD, additional, Lima, K, additional, Ferreira, MJP, additional, Costa-Lotufo, LV, additional, Serra, CSM, additional, Rego, EM, additional, and Machado-Neto, JA, additional
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- 2022
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3. DOENÇA DA CRIOAGLUTININA: RELATO DE CASO
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Faial, LCM, Norberg, AN, Cangussú, YV, Lima, GC, and Garcia, SS
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- 2024
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4. Elective Laparoscopic Partial Nephrectomy in Patients with Tumors >4 cm.
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Rais-Bahrami S, Romero FR, Lima GC, Kohanim S, Permpongkosol S, Trock BJ, Jarrett TW, and Kavoussi LR
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- 2008
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5. Association between Serum Fatty Acids Profile and MetScore in Women with Severe Obesity.
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Oliveira ES, Kattah FM, Lima GC, Horst MA, Figueiredo N, Lima GB, Whitton RGM, de Souza GIMH, Oyama LM, Silveira EA, and Corgosinho FC
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- Humans, Female, Cross-Sectional Studies, Adult, Middle Aged, Cardiovascular Diseases blood, Cardiovascular Diseases etiology, Risk Factors, Fatty Acids blood, Metabolic Syndrome blood, Obesity, Morbid blood
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Background: Metabolic syndrome (MetS) is a set of conditions associated with an increased cardiovascular risk. Several serum fatty acids (FAs) seem to play an essential role in the development of cardiometabolic diseases and mortality. Thus, it is imperative to explore the impact of FAs on MetS parameters, using an early MetS screening tool such as MetScore, which is readily available in clinical practice., Aim: The aim of this study was to assess the potential correlation between serum FAs and cardiovascular risk using a MetScore., Methods: This cross-sectional study involved 41 women with severe obesity. The MetScore was calculated, and participants were categorized into high- and low-cardiovascular-risk groups based on the median MetScore value. Gas chromatography was used to quantify serum FAs. Generalized Linear Models were used to compare group means. The association was assessed through simple logistic regression, and an adjusted logistic regression was conducted to validate the association between Metscore and serum FAs., Results: The high-cardiovascular-risk group exhibited elevated values of HOMA-IR, palmitic, oleic, cis-vaccenic, and monounsaturated fatty acids, as well as the SCD-18C, indicating a heightened cardiovascular risk. Conversely, HDL-c, QUICK, gamma-linolenic, and eicosatetraenoic fatty acids showed lower values compared to the low-risk group., Conclusions: Women with severe obesity and high cardiovascular risk have lower values of some omega-3 and omega-6 FAs, considered cardioprotective and anti-inflammatory, and have higher lipogenic activity and FAs, correlated with high cardiovascular risk. These findings emphasize the need to address lipid metabolism in this population as a therapeutic target to reduce cardiovascular risk. Future research should explore clinical interventions that modulate fatty acid metabolism to mitigate cardiometabolic complications.
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- 2024
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6. Serum Fatty Acids and Inflammatory Patterns in Severe Obesity: A Preliminary Investigation in Women.
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Lima GB, Figueiredo N, Kattah FM, Oliveira ES, Horst MA, Dâmaso AR, Oyama LM, Whitton RGM, de Souza GIMH, Lima GC, Mota JF, Campos RMS, and Corgosinho FC
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Background: Inflammation plays a central role in many chronic diseases that characterize modern society. Leptin/adiponectin and adiponectin/leptin ratios have been recognized as notable markers of dysfunctional adipose tissue and, consequently, an inflammatory state. Methods: Blood samples were collected from 41 adult volunteers (40.2 ± 8.3 years) diagnosed with severe obesity (BMI 46.99; 42.98-51.91 kg/m
2 ). The adipokines were quantified using an enzyme-linked immunosorbent assay, while the serum fatty acid analysis was conducted using chromatography. Results: The results unveiled a positive correlation between the leptin/adiponectin ratio and the 20:3n6 fatty acid (r = 0.52, p = 0.001), as well as a similar positive correlation between the adiponectin/leptin ratio and the 22:6n3 fatty acid (r = 0.74, p = 0.001). In the regression analysis, the 22:6n3 fatty acid predicted the adiponectin/leptin ratio (β = 0.76, p < 0.001), whereas C20:3 n-6 was a predictor for inflammatory markers (β = 4.84, p < 0.001). Conclusions: In conclusion, the 22:6n3 fatty acid was demonstrated to be a predictive factor for the adiponectin/leptin ratio and C20:3 n-6 was a predictor for inflammatory markers. This discovery, novel within this population, can help develop new intervention strategies aimed at controlling the inflammatory status in individuals classified as having severe obesity.- Published
- 2024
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7. The impact of the obesity onset on the inflammatory and glycemic profile of women with severe obesity.
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Paixão de Gois B, Figueiredo N, Soares Lopes KL, Esselin de Melo PR, Horst MA, Molin Netto BD, Oyama LM, Lima GC, Dâmaso AR, Mota JF, and Corgosinho FC
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- Humans, Female, Adult, Middle Aged, Young Adult, Insulin Resistance physiology, Leptin blood, Adiponectin blood, Body Mass Index, Age of Onset, Brazil epidemiology, Cross-Sectional Studies, Obesity, Morbid blood, Obesity, Morbid complications, Inflammation blood, Blood Glucose metabolism
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Background: The stage of life at the onset of obesity is an important factor in assessing inflammatory state and cardiometabolic risk., Objectives: This study aimed to evaluate the relationship between the obesity onset and the inflammatory profile in women with severe obesity., Setting: Public hospital, Brazil., Methods: Forty-eight women with severe obesity (20-59 yr old) were evaluated according to weight, height, neck circumference (NC), waist circumference (WC), and hip circumference, as well blood metabolic and inflammatory parameters. The participants were grouped according to obesity onset stage of life (early group: ≤19 yr; late group: >19 yr)., Results: The demographic means of the participants were: age of 39.7 years, weight of 122.7 kg and body mass index (BMI) of 48.4 kg/m
2 . The late group presented significantly higher values of leptin (lep)/adiponectin (adipo) ratio and homeostatic model assessment for insulin resistance (HOMA-IR) than the early group. The late group also had a lower adipo/lep ratio. Moreover, the late group showed correlations between the lep/adipo ratio and BMI (r = .460, P = .021), NC (r = .478, P = .016), and WC (r = .535, P = .006). Adipo was also correlated with NC (r = -.418, P = .038), WC (r = -.437, P = .029), and glycated hemoglobin (HbA1C) (r = -.485, P = .019). By contrast, in the early group, the lep/adipo ratio showed correlations with insulin (r = .647, P = .004) and HOMA-B (r = .564, P = .015)., Conclusions: The inflammatory profile is correlated with anthropometric values in women with late-onset obesity. Inflammatory markers seemed to correlate with the glycemic profile in women with early-onset obesity. Furthermore, inflammation was higher in women with late-onset obesity compared to those with early-onset obesity., (Copyright © 2024 American Society for Metabolic and Bariatric Surgery. Published by Elsevier Inc. All rights reserved.)- Published
- 2024
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8. Proposal for a new cut-off point for waist-to-hip ratio in women with severe obesity: A cross-sectional study.
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Kattah FM, Oliveira ES, Figueiredo N, de Melo CC, Benetti BBDC, Lima GB, Favoritto ÉAM, Schincaglia RM, Lima GC, and Corgosinho FC
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- Humans, Female, Cross-Sectional Studies, Adult, Brazil, Middle Aged, ROC Curve, Insulin Resistance, Blood Glucose metabolism, Waist Circumference, Hypertension, Cardiovascular Diseases, Risk Factors, Waist-Hip Ratio, Obesity, Morbid blood, Body Mass Index
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Background: Obesity is a chronic disease that increases the risk of cardiovascular diseases (CVD), including systemic arterial hypertension (SAH), underestimated in this population. The high mortality related to CVD reveals the need for early screening. One of the training tools is the waist-to-hip ratio (WHR). However, few studies evaluate its relationship with metabolic changes in severe obesity, making necessary a new cut-off point., Method: Cross-sectional study with 75 Brazilian women with severe obesity (mean age: 37,6 years; weight of 122 kg and body mass index (BMI) of 47,8 kg/m
2 ). Height, weight, neck circumference (NC), hip (HC), waist (WC) and waist-to-hip ratio (WHR) were obtained. Blood samples were collected for lipid/glucose profile. The Receiver Operating Characteristic (ROC) was explored to define cut-off points for WHR based on SAH. Women were compared using the t-Student/Mann Whitney test. Pearson/Spearman correlations were performed, and the significance level was set at 5%., Results: The ROC curve indicated that WHR ≥0.92 best predicted SAH. The group with WHR ≥0.92 had higher Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) (p = 0.037), insulin (p = 0.037), NC (p = 0.004), and Atherogenic Index of Plasma (AIP) (p = 0.038). WHR correlated with NC (p = 0.002; r = 0.358), glucose (p = 0.026; r = 0.270); insulin (p = 0.05; r = 0.238); HOMA-IR (p = 0.01; r = 0.3238), triglycerides (p = 0.006; r = 329) and AIP (p = 0.02; r = 0.370)., Conclusions: A new cut-off point for WHR related to SAH in severe obesity is suggested., Competing Interests: Declaration of competing interest None., (Copyright © 2024 European Society for Clinical Nutrition and Metabolism. Published by Elsevier Ltd. All rights reserved.)- Published
- 2024
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9. Bilateral Choanal Atresia in a 42-year-old Patient: A Rare Condition Case Report.
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Vieira SLS, de Fátima Amiti Fabri C, Lima GC, de Oliveira Tinoco MB, Padín-Iruegas ME, Tinoco P, and E Silva FV
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Choanal atresia is an uncommon condition with an incidence of 1:5,000-8,000 live births, affecting females more frequently and often associated with other malformations. This case report presents a 42-year-old female patient who was born with bilateral choanal atresia and intervened surgically for the first time at birth. However, the formed orifice was reobstructed a few months afterward, necessitating reoperation in adulthood. The purpose of this case report is to describe bilateral choanal atresia in detail, including its clinical presentation, epidemiology, diagnosis, pathogenesis, and therapeutic approach. It aims to enhance understanding of this rare but significant condition., Competing Interests: Conflict of interestThe authors declare no conflicts of interest., (© The Author(s) 2024.)
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- 2024
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10. The degree of food processing can influence serum fatty acid and lipid profiles in women with severe obesity.
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Lopes KLS, Figueiredo N, Kattah FM, Lima GC, Oliveira ES, Horst MA, Oyama LM, Dâmaso AR, Whitton RGM, de Souza Abreu V, Duarte ACS, Pimentel GD, and Corgosinho FC
- Abstract
Background: The increase in the prevalence of obesity is associated with the increase in the consumption of ultra-processed foods and may be related to the increase in the disorders involving metabolism and the transport and storage of fatty acids., Objective: To evaluate the effect of processed food consumption according to the degree of processing on the serum fatty acid levels and lipid profile of women with severe obesity., Methods: This was a cross-sectional study. Data were collected from anthropometric assessments, the food frequency questionnaire (FFQ), and blood tests for lipidogram studies and serum fatty acid measurements. The foods consumed were identified through the FFQ and classified according to the degree of processing based on the NOVA rating, and the frequencies of consumption were transformed into scores, as proposed by Fornés methodology. Data were analyzed using IBM SPSS Statistics, version 21. The significance level for the analysis was set at 5%., Results: This study included 44 women with a mean age of 40.59 years and mean body mass index of 48.61 kg/m
2 . An inverse association was observed between the consumption of unprocessed and the occurrence of hypertriglyceridemia ( p = 0.021) and levels of triglycerides ( p = 0.047), total cholesterol ( p = 0.030), and very low-density lipoprotein-cholesterol ( p = 0.039). The consumption of processed foods was positively associated with the presence of hypertriglyceridemia ( p = 0.044) and omega 6/3 ratio ( p = 0.001) and negatively associated with total omega 3 levels ( p = 0.011). The consumption of processed foods was positively associated with total cholesterol ( p = 0.041) and negatively associated with the omega 3/6 ratio ( p = 0.001). A negative correlation was found between the average consumption of ultra-processed foods (at least once a week) and serum level of high-density lipoprotein ( p = 0.035)., Conclusion: The consumption of processed and ultra-processed foods was associated with unfavorable lipid profiles and fatty acid levels in women with severe obesity. These results emphasize the importance of promoting the consumption of unprocessed food to mitigate metabolic disorders linked to processed food intake., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Lopes, Figueiredo, Kattah, Lima, Oliveira, Horst, Oyama, Dâmaso, Whitton, de Souza Abreu, Duarte, Pimentel and Corgosinho.)- Published
- 2023
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11. Recombinant human TIM-3 ectodomain expressed in bacteria and recovered from inclusion bodies as a stable and active molecule.
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Lima GC, Chura-Chambi RM, Morganti L, Silva VJ, Cabral-Piccin MP, Rocha V, Medina TS, Ramos RN, and Luz D
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Introduction: Microbial systems, such as Escherichia coli , as host recombinant expression is the most versatile and the cheapest system for protein production, however, several obstacles still remain, such as recovery of soluble and functional proteins from inclusion bodies, elimination of lipopolysaccharides (LPS) contamination, incomplete synthesis, degradation by proteases, and the lack of post-translational modifications, which becomes even more complex when comes to membrane proteins, because they are difficult not only to produce but also to keep in solution in its active state. T-cell Immunoglobulin and Mucin domain 3 (TIM-3) is a type I transmembrane protein that is predominantly expressed on the surface of T lymphocytes, natural killer (NK) cells, dendritic cells, and macrophages, playing a role as a negative immune checkpoint receptor. TIM-3 comprises a single ectodomain for interaction with immune system soluble and cellular components, a transmembrane domain, and a cytoplasmic tail, responsible for the binding of signaling and scaffolding molecules. TIM-3 pathway holds potential as a therapeutic target for immunotherapy against tumors, autoimmunity, chronic virus infections, and various malignancies, however, many aspects of the biology of this receptor are still incompletely understood, especially regarding its ligands. Methods: Here we overcome, for the first time, the challenge of the production of active immune checkpoint protein recovered from bacterial cytoplasmic inclusion bodies, being able to obtain an active, and non-glycosylated TIM-3 ectodomain (TIM-3-ECD), which can be used as a tool to better understand the interactions and roles of this immune checkpoint. The TIM-3 refolding was obtained by the association of high pressure and alkaline pH. Results: The purified TIM-3-ECD showed the correct secondary structure and was recognized from anti-TIM-3 structural-dependent antibodies likewise commercial TIM-3-ECD was produced by a mammal cells system. Furthermore, immunofluorescence showed the ability of TIM-3-ECD to bind to the surface of lung cancer A549 cells and to provide an additional boost for the expression of the lymphocyte activation marker CD69 in anti-CD3/CD28 activated human PBMC. Discussion: Taken together these results validated a methodology able to obtain active checkpoint proteins from bacterial inclusion bodies, which will be helpful to further investigate the interactions of this and others not yet explored immune checkpoints., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2023 Lima, Chura-Chambi, Morganti, Silva, Cabral-Piccin, Rocha, Medina, Ramos and Luz.)
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- 2023
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12. Dietary inflammatory index and its relation to the pathophysiological aspects of obesity: a narrative review.
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de Mello RN, de Gois BP, Kravchychyn ACP, Dâmaso AR, Horst MA, Lima GC, and Corgosinho FC
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- Humans, Biomarkers, Inflammation, C-Reactive Protein analysis, Diet, Obesity complications
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Obesity, a complex disease that involves energy imbalance and chronic low-grade inflammation, is implicated in the pathogenesis of several chronic non-communicable diseases. As dietary components modulate the human body's inflammatory status, the Dietary Inflammatory Index (DII
® ), a literature-derived dietary index, was developed in 2009 to characterize the inflammatory potential of a habitual diet. Abundant research has been conducted to investigate the associations between DII and obesity. In this narrative review, we examined the current state of the science regarding the relationships between DII and the inflammatory pathophysiological aspects related to obesity. DII is associated with inflammation in obesity. The most pro-inflammatory diet was directly related to higher levels of pro-inflammatory markers, which included C-reactive protein (CRP), interleukin-6 (IL-6), IL-1β, and tumor necrosis factor-α (TNF-α). Therefore, evidence suggests that the use of the DII may be useful for understanding the relationship between diet and the inflammatory process related to obesity.- Published
- 2023
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13. Description of a new species of the genus Lutzomyia França, 1924 (Diptera: Phlebotominae) and of the male of Lutzomyia fonsecai (Costa Lima, 1932).
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Júnior SPC, Lima GC, Mendonça RP, and Andrade AJ
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- Female, Male, Animals, Brazil, Psychodidae, Phlebotomus, Bivalvia
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Lutzomyia itambe sp. n. is described as a new species of neotropical cavernicolous phlebotomine sand fly based on specimens of males and females collected in the Gruta do Itambé, Altinópolis municipality, São Paulo State. In addition to this, we describe the male of Lutzomyia fonsecai (Costa Lima, 1932) collected near their type-locality in Bolivia. These descriptions are supported by illustrations that detail the morphological and morphometrical characteristics of the specimens. Lutzomyia itambe sp. n., L. fonsecai, along with L. dispar Martins & Silva, 1963, comprise the already named "Fonsecai complex". Both sex present parallel labial sutures, not forked, and males can be differentiated by parameral characters, while in females the distinction is made by characters of the palpi and spermathecae.
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- 2023
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14. Ventriculography: When to Choose to Perform It?
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Lima GC
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- Humans, Diagnostic Imaging, Heart Ventricles
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- 2022
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15. Anal and cervical human papillomavirus genotypes in women co-infected with human immunodeficiency virus: A systematic review.
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Paraná VC, Souza Santos D, Barreto de Souza Silva DI, Lima GC, Gois LL, and Santos LA
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- Female, Genotype, HIV, Human papillomavirus 16 genetics, Humans, Papillomaviridae genetics, Prevalence, Alphapapillomavirus, Coinfection complications, Coinfection epidemiology, HIV Infections complications, HIV Infections epidemiology, Papillomavirus Infections complications, Papillomavirus Infections epidemiology, Uterine Cervical Neoplasms epidemiology
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Human papillomavirus (HPV) and human immunodeficiency virus (HIV) infections are sexually transmitted. There are several HPV genotypes and clinical manifestations. Determining which genotypes circulate worldwide and/or in specific geographic areas can help with prevention programs and vaccine distribution. This systematic review aimed to investigate the most frequent anal and cervical HPV genotypes in women co-infected with HPV/HIV. The PubMed, Scientific Electronic Library Online, and Latin American and Caribbean Literature in Health Sciences databases were used to search for articles published between January 2015 and August 2021, and the included articles followed the defined selection criteria. Based on the 51 articles included, HPV16 was the most prevalent (41%) genotype, followed by HPV52 (17%) and HPV58 (14%). Based on the comparative analyses of the HIV-negative women with HPV and the HPV/HIV co-infected groups, HPV16 was frequent in both groups; HPV58, HPV31, and HPV52 were more frequent in the co-infected group; and HPV18 was more common in HIV-negative women with HPV. HPV/HIV co-infected women most frequently presented the HPV genotypes 16, 58, and 52, whereas HIV-negative women with HPV had a higher frequency of HPV16, HPV18, and HPV52 genotypes. The results indicate the importance of genotype surveillance as a strategy to improve preventive measures against HPV infection and its complications. International Prospective Register of Systematic Reviews (PROSPERO) registration number: CRD42020220121.
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- 2022
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16. Anthelmintic efficacy of oxibendazole against gastrointestinal nematodes in swine.
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Mendonça RP, Carneiro DO, Baccin EM, Pirágine MR, Zoca SM, Rossa LAF, Lima GC, Oliveira FB, Costa IS, Oliveira GN, Nogueira SNL, and Santos-Doni TRD
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- Animals, Benzimidazoles, Feces parasitology, Gastrointestinal Tract, Parasite Egg Count veterinary, Swine, Anthelmintics pharmacology, Anthelmintics therapeutic use, Nematoda, Swine Diseases epidemiology
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In swine production, parasites, especially gastrointestinal helminths, generate considerable economic losses. Therefore, effective control measures, such as the use of the correct anthelmintics, are of paramount importance for maintaining profitability. The aim of the present study was to evaluate the efficacy of the anthelmintic oxibendazole, administered orally, in pigs (non-industrial) naturally infected with gastrointestinal nematodes. To that end, we selected 18 pigs naturally parasitized by gastrointestinal nematodes, as determined by examination of fecal samples (eggs per gram (EPG > 500) of feces), and divided them into two groups: treated (with a 10-day course of oxibendazole) and control (untreated). After the treatment period, the animals were euthanized. During necropsy, the helminths in the gastrointestinal tract were identified and quantified. The species identified were, in order of occurrence, Ascaris suum, Trichuris suis, Oesophagostomum dentatum, and Hyostrongylus rubidus. In Brazilian swine herds, traditional (non-industrial) production systems can favor the transmission of helminths. We found that treatment with oxibendazole was 100% effective against A. suum and H. rubidus, whereas it was 99.65% effective against O. dentatum and 99.20% effective against T. suis, significantly reducing helminth counts (P < 0.01 for all). We conclude that oxibendazole is effective in controlling the main helminths in swine.
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- 2022
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17. Dietary fibers as beneficial microbiota modulators: A proposed classification by prebiotic categories.
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Rezende ESV, Lima GC, and Naves MMV
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- Dietary Fiber, Fructans, Humans, Inulin, Oligosaccharides, Microbiota, Prebiotics
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Dietary fiber is a group of heterogeneous substances that are neither digested nor absorbed in the small intestine. Some fibers can be classified as prebiotics if they are metabolized by beneficial bacteria present in the hindgut microbiota. The aim of this review was to specify the prebiotic properties of different subgroups of dietary fibers (resistant oligosaccharides, non-starch polysaccharides, resistant starches, and associated substances) to classify them by prebiotic categories. Currently, only resistant oligosaccharides (fructans [fructooligosaccharides, oligofructose, and inulin] and galactans) are well documented as prebiotics in the literature. Other fibers are considered candidates to prebiotics or have prebiotic potential, and apparently some have no prebiotic effect on humans. This dietary fiber classification by the prebiotic categories contributes to a better understanding of these concepts in the literature, to the stimulation of the processing and consumption of foods rich in fiber and other products with prebiotic properties, and to the development of protocols and guidelines on food sources of prebiotics., (Copyright © 2021 Elsevier Inc. All rights reserved.)
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- 2021
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18. Serological Testing for COVID-19, Immunological Surveillance, and Exploration of Protective Antibodies.
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Peroni LA, Toscaro JM, Canateli C, Tonoli CCC, de Olivera RR, Benedetti CE, Coimbra LD, Pereira AB, Marques RE, Proença-Modena JL, Lima GC, Viana R, Borges JB, Lin-Wang HT, Abboud CS, Gun C, Franchini KG, and Bajgelman MC
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- Animals, Antibodies, Viral blood, Antigens, Viral immunology, COVID-19 epidemiology, COVID-19 immunology, COVID-19 Serological Testing standards, Cross Reactions, Dengue Virus immunology, Enzyme-Linked Immunosorbent Assay methods, Enzyme-Linked Immunosorbent Assay standards, Female, Humans, Immunoglobulin G blood, Immunoglobulin M blood, Mice, Mice, Inbred BALB C, Sensitivity and Specificity, Zika Virus immunology, Antibodies, Viral immunology, COVID-19 diagnosis, COVID-19 prevention & control, COVID-19 Serological Testing methods, Immunologic Surveillance, SARS-CoV-2 immunology
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Serological testing is a powerful tool in epidemiological studies for understanding viral circulation and assessing the effectiveness of virus control measures, as is the case of SARS-CoV-2, the pathogenic agent of COVID-19. Immunoassays can quantitatively reveal the concentration of antiviral antibodies. The assessment of antiviral antibody titers may provide information on virus exposure, and changes in IgG levels are also indicative of a reduction in viral circulation. In this work, we describe a serological study for the evaluation of antiviral IgG and IgM antibodies and their correlation with antiviral activity. The serological assay for IgG detection used two SARS-CoV-2 proteins as antigens, the nucleocapsid N protein and the 3CL protease. Cross-reactivity tests in animals have shown high selectivity for detection of antiviral antibodies, using both the N and 3CL antigens. Using samples of human serum from individuals previously diagnosed by PCR for COVID-19, we observed high sensitivity of the ELISA assay. Serological results with human samples also suggest that the combination of higher titers of antiviral IgG antibodies to different antigen targets may be associated with greater neutralization activity, which can be enhanced in the presence of antiviral IgM antibodies., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Peroni, Toscaro, Canateli, Tonoli, de Olivera, Benedetti, Coimbra, Pereira, Marques, Proença-Modena, Lima, Viana, Borges, Lin-Wang, Abboud, Gun, Franchini and Bajgelman.)
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- 2021
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19. Boosting Antitumor Response by Costimulatory Strategies Driven to 4-1BB and OX40 T-cell Receptors.
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Mascarelli DE, Rosa RSM, Toscaro JM, Semionatto IF, Ruas LP, Fogagnolo CT, Lima GC, and Bajgelman MC
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Immunotherapy explores several strategies to enhance the host immune system's ability to detect and eliminate cancer cells. The use of antibodies that block immunological checkpoints, such as anti-programed death 1/programed death 1 ligand and cytotoxic T-lymphocyte-associated protein 4, is widely recognized to generate a long-lasting antitumor immune response in several types of cancer. Evidence indicates that the elimination of tumors by T cells is the key for tumor control. It is well known that costimulatory and coinhibitory pathways are critical regulators in the activation of T cells. Besides blocking checkpoints inhibitors, the agonistic signaling on costimulatory molecules also plays an important role in T-cell activation and antitumor response. Therefore, molecules driven to costimulatory pathways constitute promising targets in cancer therapy. The costimulation of tumor necrosis factor superfamily receptors on lymphocytes surface may transduce signals that control the survival, proliferation, differentiation, and effector functions of these immune cells. Among the members of the tumor necrosis factor receptor superfamily, there are 4-1BB and OX40. Several clinical studies have been carried out targeting these molecules, with agonist monoclonal antibodies, and preclinical studies exploring their ligands and other experimental approaches. In this review, we discuss functional aspects of 4-1BB and OX40 costimulation, as well as the progress of its application in immunotherapies., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Mascarelli, Rosa, Toscaro, Semionatto, Ruas, Fogagnolo, Lima and Bajgelman.)
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- 2021
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20. Protective effect against gastric mucosa injury of a sulfated agaran from Acanthophora spicifera.
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Pereira Júnior LC, Nascimento FG, Oliveira SRBD, Lima GC, Chagas FDS, Sombra VG, Feitosa JPA, Soriano EM, Souza MHLP, Zocolo GJ, Silva LMA, de Paula RCM, Damasceno ROS, and Freitas ALP
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- Agar isolation & purification, Agar pharmacology, Animals, Gastric Mucosa pathology, Male, Mice, Oxidative Stress drug effects, Polysaccharides chemistry, Polysaccharides isolation & purification, Rhodophyta metabolism, Stomach drug effects, Stomach injuries, Stomach pathology, Stomach Ulcer pathology, Stomach Ulcer prevention & control, Sulfates chemistry, Sulfates pharmacology, Cytoprotection drug effects, Gastric Mucosa drug effects, Gastric Mucosa injuries, Polysaccharides pharmacology, Rhodophyta chemistry
- Abstract
In this study, a polysaccharide from marine alga Acanthophora spicifera (PAs) was isolated and structurally characterized. Its protective potential against chemically-induced gastric mucosa injury was evaluated. The gel permeation chromatography experiments and spectroscopy spectrum showed that PAs is a sulfated polysaccharide with a high molecular mass (6.98 × 10
5 g/mol) and degree of sulfation of 1.23, exhibiting structural characteristic typical of an agar-type polysaccharide. Experimental results demonstrated that PAs reduced the hemorrhagic gastric injury, in a dose-dependent manner. Additionally, PAs reduced the intense gastric oxidative stress, measured by glutathione (GSH) and malondialdehyde (MDA) levels. PAs also prevented the reduction of mucus levels adhered to the gastric mucosa, promoted by the aggressive effect of ethanol. In summary, the sulfated polysaccharide from A. spicifera protected the gastric mucosa through the prevention of lipid peroxidation and enhanced the defense mechanisms of the gastric mucosa, suggesting as a promising functional food as gastroprotective agent., (Copyright © 2021 Elsevier Ltd. All rights reserved.)- Published
- 2021
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21. Sulfated polysaccharide from the red algae Gelidiella acerosa: Anticoagulant, antiplatelet and antithrombotic effects.
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Chagas FDDS, Lima GC, Dos Santos VIN, Costa LEC, de Sousa WM, Sombra VG, de Araújo DF, Barros FCN, Marinho-Soriano E, de Andrade Feitosa JP, de Paula RCM, Pereira MG, and Freitas ALP
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- Animals, Anticoagulants chemistry, Anticoagulants pharmacology, Blood Coagulation Tests, Female, Fibrinolytic Agents chemistry, Fibrinolytic Agents pharmacology, Humans, Magnetic Resonance Spectroscopy, Molecular Structure, Molecular Weight, Platelet Aggregation drug effects, Platelet Aggregation Inhibitors chemistry, Platelet Aggregation Inhibitors pharmacology, Rats, Spectroscopy, Fourier Transform Infrared, Structure-Activity Relationship, Venous Thrombosis drug therapy, Venous Thrombosis etiology, Polysaccharides chemistry, Polysaccharides pharmacology, Rhodophyta chemistry, Sulfates chemistry
- Abstract
A sulfated polysaccharide from the red algae Gelidiella acerosa (GaSP) was obtained through enzymatic extraction and subjected to chemical characterization by HPSEC, elemental microanalysis, FT-IR and NMR spectroscopies. The GaSP anticoagulant activity was investigated through APTT and PT tests and platelet aggregation assessed by turbidimetry. The antithrombotic and hemorrhagic activities were evaluated by venous thrombosis and hemorrhagic tendency models, respectively. FT-IR and NMR demonstrated that GaSP is a sulfated agaran. HPSEC and elemental microanalysis revealed a peak molar mass of 284.8 kDa and a degree of sulfation of 0.63, respectively. This molecule prolonged the coagulation time in 2.1 times and inhibited the platelet aggregation by 45%. Furthermore, it showed significant dose-dependent antithrombotic effect of 40%, 64% and 80% at 0.1, 0.5 and 1 mg/kg, respectively, without hemorrhage. These results suggest that GaSP has promising antithrombotic., Competing Interests: Declaration of competing interest The authors declare no conflict of interest., (Copyright © 2020 Elsevier B.V. All rights reserved.)
- Published
- 2020
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22. Passion fruit peel intake decreases inflammatory response and reverts lipid peroxidation and adiposity in diet-induced obese rats.
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Vuolo MM, Lima GC, Batista ÂG, Carazin CBB, Cintra DE, Prado MA, and Júnior MRM
- Subjects
- Adiposity drug effects, Animals, Anti-Inflammatory Agents pharmacology, Anti-Inflammatory Agents therapeutic use, Antioxidants metabolism, Antioxidants pharmacology, Antioxidants therapeutic use, Cytokines blood, Diet, High-Fat adverse effects, Dietary Fats adverse effects, Dietary Fiber pharmacology, Dietary Fiber therapeutic use, Glutathione Peroxidase metabolism, Glutathione Reductase metabolism, Inflammation blood, Liver drug effects, Liver metabolism, Male, Obesity blood, Obesity etiology, Obesity metabolism, Oxidative Stress drug effects, Plant Extracts pharmacology, Rats, Sprague-Dawley, Weight Loss, Adipose Tissue metabolism, Fruit chemistry, Inflammation prevention & control, Lipid Peroxidation drug effects, Obesity drug therapy, Passiflora chemistry, Plant Extracts therapeutic use
- Abstract
This study investigated Passiflora edulis peel flour (PEPF) intake and its effect against high-fat diet-induced obesity. PEPF is a source of fiber and phenolic compounds, which can decrease oxidative stress and inflammatory cytokines, both linked to chronic inflammatory response and fat deposition in obesity. Therefore, we hypothesized that PEPF intake could decrease inflammatory cytokines and oxidative stress observed in obesity, leading to decrease of fatness and chronic inflammatory response. The aims of the study were to evaluate the lipid peroxidation, the expression of antioxidants enzymes, and inflammatory parameters in obese rats. Male Sprague-Dawley rats were divided into 3 groups (n = 8 per group) according to the diets: control (based on AIN-93G), high-fat (HF, 35% fat w/w), and HF with PEPF (HFPF), and the experiment lasted for 10 weeks. PEPF showed high dietary fiber content and bioactive compounds, such as ferulic acid, and β-carotene. PEPF intake was effective in reducing body weight gain (13.31%) and total body fat (22.58%). The lipid peroxidation in the liver and adipose tissue decreased in the HFPF group compared to HF-fed animals, whereas hepatic glutathione peroxidase and glutathione reductase activity and their expressions in the liver were higher in HFPF than HF. In addition, the PEPF intake decreased inflammatory cytokines in serum. These results suggest that PEPF intake decreases oxidative stress, possibly by the increase of antioxidant enzymes expression. Furthermore, PEPF decreases inflammatory response and protects from adiposity. Then, PEPF could act as an adjuvant to control of early parameters in obesity dysfunction., (Copyright © 2019 Elsevier Inc. All rights reserved.)
- Published
- 2020
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23. Graviola Fruit Bar Added Acerola By-Product Extract Protects Against Inflammation and Nociception in Adult Zebrafish ( Danio rerio ).
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Silva LMRD, Lima JDSS, Magalhães FEA, Campos AR, Araújo JIF, Batista FLA, Araújo SMB, Sousa PHM, Lima GC, Holanda DKR, Rolim RC, Figueiredo RW, Figueiredo EAT, Duarte ASG, and Ricardo NMPS
- Subjects
- Animals, Behavior, Animal, Disease Models, Animal, Female, Fruit chemistry, Male, Malpighiaceae chemistry, Seeds chemistry, Toxicity Tests, Acute, Zebrafish, Analgesics pharmacology, Annona chemistry, Anti-Inflammatory Agents pharmacology, Inflammation drug therapy, Nociceptive Pain drug therapy
- Abstract
Studies involving foods associated with pain reversal and anti-inflammatory effects using zebrafish are rarely reported in the literature. This study aimed to evaluate the effect of graviola ( Annona muricata L.) fruit bar (GFB) and GFB added with acerola ( Malpighia glabra L) seed extract (ASE) on acute nociception and abdominal inflammation in adult zebrafish ( Danio rerio) . Acute nociception was induced by formalin, capsaicin, cinnamaldehyde, acidic saline, glutamate (cutaneous models), and hypertonic saline (corneal model), and inflammation was induced by carrageenan. Both GFB and ASE exhibited antinociceptive effect modulated by the nitrergic system, guanylate cyclase, and transient receptor potential ankyrin 1 and acid-sensing ion channels. The antinociceptive effect of GFB also appears to be modulated by the opioid system and glutamatergic receptors (N-methyl-D-aspartate receptor). Only ASE presented corneal antinociceptive effect. Both samples showed anti-inflammatory effect, being more significant the effect of GFB. The addition of acerola by-product extract in GFB results in a product with greater biological potential.
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- 2020
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24. Impact of energy deficit during hospitalization and biomarkers at admission on clinical outcomes in critically ill children: A longitudinal study.
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Carvalhal FB, Ferreira Peres WA, Fontes Lima GC, Barcellos LH, do Carmo CN, and de Carvalho Padilha P
- Subjects
- Biomarkers blood, Brazil, C-Reactive Protein metabolism, Child, Preschool, Enteral Nutrition, Female, Humans, Intensive Care Units, Pediatric, Length of Stay, Longitudinal Studies, Male, Malnutrition diet therapy, Retrospective Studies, Serum Albumin metabolism, Child, Hospitalized, Critical Illness, Malnutrition diagnosis
- Abstract
Background & Aims: To evaluate the impact of energy deficit during hospitalization and the biomarkers albumin and C-reactive protein (CRP) on the clinical outcomes length of stay (LOS) and duration of mechanical ventilation (DMV) in children and adolescents admitted to the pediatric intensive care unit (PICU) of a private hospital in Rio de Janeiro., Methods: A longitudinal, retrospective study was conducted of the medical records of patients admitted to the PICU from May 2016 to June 2017 who received enteral nutrition (EN) for 72 h or longer. The cut-off points for serum albumin and CRP were set at ≥3.5 and <2.0, respectively. The energy balance was calculated as the difference between the energy prescribed and the energy received by the patient. The comparison of continuous variables related to LOS and DMV was assessed using Student's t-test and the Mann-Whitney test. The significance value was set at p < 0.05., Results: Ninety-three patients were selected, with a median age of 32 (±39.49) months. The mean serum albumin and CRP levels were 4.04 (±0.59) and 4.67 (±7.40), respectively. In linear regression models adjusted for length of stay, reduced albumin, increased CRP, and negative energy balance were positively associated. In the models adjusted to DMV, the values for reduced albumin and increased CRP were significant., Conclusion: A significant association was found between serum albumin and CRP at admission and the outcomes under investigation, LOS and DMV. Energy deficit was also associated with LOS., (Copyright © 2019 European Society for Clinical Nutrition and Metabolism. All rights reserved.)
- Published
- 2019
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25. Aqueous extract of berry (Plinia jaboticaba) byproduct modulates gut microbiota and maintains the balance on antioxidant defense system in rats.
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da Silva-Maia JK, Batista AG, Correa LC, Lima GC, Bogusz Junior S, and Maróstica Junior MR
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- Animal Feed analysis, Animals, Bacteria classification, Bacteria drug effects, Bacteria genetics, Bacteria isolation & purification, Colon drug effects, Colon metabolism, Colon microbiology, Fruit chemistry, Male, Plant Extracts chemistry, Plant Extracts isolation & purification, Rats, Rats, Wistar, Antioxidants metabolism, Gastrointestinal Microbiome drug effects, Myrtaceae chemistry, Plant Extracts pharmacology, Waste Products analysis
- Abstract
Previous studies have assessed the properties of aqueous extracts, using byproducts such as jaboticaba peel. We have assessed potential antioxidant effects of jaboticaba extract (Plinia jaboticaba) (JAE = 50 g/L) in vitro and in vivo. Healthy Wistar rats received ad libitum JAE for either 15 or 49 days in vivo. Cyanidin-3-O-glucoside, delphinidin-3-O-glucoside, gallic acid, rutin, myricetin, and quercetin were identified as the main polyphenols in JAE. Lipid peroxidation values in the serum and colon were similar throughout the groups. In addition, JAE did not disturb the antioxidant systems. JAE also altered gut microbiota, increasing since Lactobacillus, Bifidobacterium and Enterobacteriaceae counts. Bacterial metabolites were higher in the colon content of rats fed with JAE than in the control group. Given these results, under healthy conditions, JAE dietary supplementation could perform in vivo modulation of gut microbiota, without disturbing the antioxidant system. PRACTICAL APPLICATION: Jaboticaba (Plinia jaboticaba) peel is a rich and often-wasted source of bioactive compounds, such as polyphenols. Previous studies have shown that physiological benefits of this berry. The jaboticaba peel could contribute to antioxidant defense systems; it may also have an effect over gut microbiota related to polyphenols contents. Aqueous extraction may be a practical way of employing the bioactive compounds of jaboticaba peel; these compounds can be consumed daily and safely, and thus have attracted particular attention. This work showed positive impacts of jaboticaba peel treatments on microbiota and antioxidant defense systems, and could guide future clinical studies., (© 2018 Wiley Periodicals, Inc.)
- Published
- 2019
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26. In vitro anthelmintic activity of grape pomace extract against gastrointestinal nematodes of naturally infected sheep.
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Silva Soares SC, de Lima GC, Carlos Laurentiz A, Féboli A, Dos Anjos LA, de Paula Carlis MS, da Silva Filardi R, and da Silva de Laurentiz R
- Abstract
Grape pomace obtained as a byproduct of industrial processing of grapes retains nutrients and substances with anthelmintic potential such as saponins, tannins, and flavonoids. Therefore, this study evaluated the in vitro ovicidal and larvicidal activity of hydroalcoholic grape pomace extract against gastrointestinal nematodes of sheep. The anthelmintic evaluation was performed by in vitro assays with eggs and larvae of nematodes obtained from naturally infected donor sheep. The grape pomace extract showed high in vitro ovicidal and larvicidal activity with LD
50 values of 0.30 mg/mL for egg hatching inhibition, 1.01 mg/mL for larval development inhibition and 100% efficacy in larval migration inhibition assays at all concentrations evaluated. The effect of tannins was evaluated by the addition of 50 mg/mL polyvinyl polypyrrolidone to grape pomace extract at the concentration of 12.5 mg/mL. The in vitro ovicidal activity of grape pomace was reduced by only 15% after polyvinyl polypyrrolidone addition, indicating that other phytochemicals also contribute to the ovicidal activity displayed by the extract. Our results demonstrate that grape pomace exhibits in vitro anthelmintic activity, suggesting that, beyond its nutritional potential, this pomace can also be an ally for gastrointestinal nematode control in sheep.- Published
- 2018
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27. Antidiarrheal activity of a novel sulfated polysaccharide from the red seaweed Gracilaria cervicornis.
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Bezerra FF, Lima GC, Sousa NA, Sousa WM, Costa LEC, Costa DSD, Barros FCN, Medeiros JVR, and Freitas ALP
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- Animals, Antidiarrheals pharmacology, Castor Oil, Chlorides metabolism, Cholera Toxin, Diarrhea chemically induced, Diarrhea metabolism, Diarrhea physiopathology, Gastrointestinal Motility drug effects, Intestinal Secretions metabolism, Intestine, Small diagnostic imaging, Intestine, Small metabolism, Mice, Polysaccharides pharmacology, Seaweed, Sodium-Potassium-Exchanging ATPase metabolism, Antidiarrheals therapeutic use, Diarrhea drug therapy, Gracilaria, Polysaccharides therapeutic use
- Abstract
Ethnopharmacological Relevance: The use of marine seaweeds as a source of natural compounds with medicinal purposes is increasing in Western countries in the last decades, becoming an important alternative in the traditional medicine of many developing countries, where diarrhea still remains a severe public health problem, with high rates of mortality and morbidity. Sulfated polysaccharides (PLS) extracted from red seaweeds can exhibit therapeutic effects for the treatment of gastrointestinal disorders. Thus, the pharmacological properties of the PLS from Gracilaria cervicornis, an endemic seaweed found in the Brazilian northeast coast, was evaluated as an alternative natural medication for diarrhea., Aim of the Study: This study aimed to evaluate the antidiarrheal activity of sulfated polysaccharides (PLS) extracted from the red seaweed G. cervicornis in Swiss mice pre-treated with castor oil or cholera toxin., Materials and Methods: The seaweed Gracilaria cervicornis was collected at Flecheiras beach (city of Trairí, State of Ceará, Brazil) and the PLS was obtained through enzymatic extraction and administered in mice (25-30 g) before diarrhea induction with castor oil or cholera toxin. For the evaluation of the total number of fecal output and diarrheal feces, the animals were placed in cages lined with adsorbent material. The evaluation of intestinal fluid accumulation (enteropooling) on castor oil-induced diarrhea in mice occurred by dissecting the small intestine and measuring its volume. The determination of Na
+ /K+ -ATPase activity was measured in the small intestine supernatants by colorimetry, using commercial biochemistry kits. The gastrointestinal motility was evaluated utilizing an activated charcoal as a food tracer. The intestinal fluid secretion and chloride ion concentration were evaluated in intestinal closed loops in mice with cholera toxin-induced secretory diarrhea. The binding ability of PLS with GM1 and/or cholera toxin was evaluated by an Enzyme-Linked Immunosorbent Assay (ELISA)., Results: The G. cervicornis PLS showed antidiarrheal effects in both acute and secretory diarrhea, reducing the total number of fecal output, diarrheic stools, intestinal fluid accumulation, and increasing small intestine Na+ /K+ -ATPase activity on castor oil-induced diarrhea. However, the PLS did not affect gastrointestinal motility, indicating that this compound has a different action mechanism than loperamide. In secretory diarrhea, the PLS decreased intestinal fluid secretion and small intestine chloride excretion, binding with GM1 and/or cholera toxin and blocking their attachment to the enterocyte cell surface., Conclusions: In conclusion, PLS has a significant antidiarrheal effect in acute and secretory diarrhea. Further investigation is needed towards its use as a natural medicine to treat diarrhea., (Copyright © 2018 Elsevier B.V. All rights reserved.)- Published
- 2018
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28. Hepatoprotective Effect of Essential Oils from Hyptis crenata in Sepsis-Induced Liver Dysfunction.
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Lima GC, Vasconcelos YAG, de Santana Souza MT, Oliveira AS, Bomfim RR, de Albuquerque Júnior RLC, Camargo EA, Portella VG, Coelho-de-Souza AN, and Diniz LRL
- Subjects
- Alanine Transaminase genetics, Alanine Transaminase metabolism, Animals, Aspartate Aminotransferases genetics, Aspartate Aminotransferases metabolism, Brazil, Catalase genetics, Catalase metabolism, Humans, Liver drug effects, Liver enzymology, Liver metabolism, Liver Diseases etiology, Liver Diseases genetics, Liver Diseases metabolism, Male, Malondialdehyde metabolism, Oxidative Stress drug effects, Rats, Rats, Wistar, Superoxide Dismutase genetics, Superoxide Dismutase metabolism, Hyptis chemistry, Liver Diseases drug therapy, Oils, Volatile administration & dosage, Plant Extracts administration & dosage, Protective Agents administration & dosage, Sepsis complications
- Abstract
No specific therapeutics are available for the treatment of sepsis-induced liver dysfunction, a clinical complication strongly associated with the high mortality rate of septic patients. This study investigated the effect of the essential oil of Hyptis crenata (EOHc), a lamiaceae plant used to treat liver disturbances in Brazilian folk medicine, on liver function during early sepsis. Sepsis was induced by the cecal ligation and puncture (CLP) model. Rats were divided into four groups: Sham, Sham+EOHc, CLP, and CLP+EOHc. EOHc (300 mg/kg) was orally administered 12 and 24 h after surgery. The animals were sacrificed for blood collection and liver tissue samples 48 h after surgery. Hepatic function was evaluated by measuring serum bilirubin, alkaline phosphatase (ALP), aspartate aminotransferase, and alanine aminotransferase (ALT) levels. The levels of malondialdehyde and the activity of superoxide dismutase, catalase, and GSH peroxidase (GSH-Px) were measured for assessment of oxidative stress. Liver morphology was analyzed by hematoxylin and eosin staining. EOHc normalized serum ALP, ALT, and bilirubin levels and inhibited morphological changes. In addition, we observed that EOHc inhibited elevation in hepatic lipid peroxidation and reduction of the glutathione peroxidase activity induced by sepsis. Our data show that EOHc plays a protective effect against liver injury induced by sepsis.
- Published
- 2018
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29. Lectin obtained from the red seaweed Bryothamnion triquetrum: Secondary structure and anti-inflammatory activity in mice.
- Author
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Fontenelle TPC, Lima GC, Mesquita JX, Lopes JLS, de Brito TV, Vieira Júnior FDC, Sales AB, Aragão KS, Souza MHLP, Barbosa ALDR, and Freitas ALP
- Subjects
- Animals, Anti-Inflammatory Agents therapeutic use, Carrageenan, Cell Movement drug effects, Dextrans, Edema drug therapy, Edema pathology, Female, Hemagglutination drug effects, Hydrogen-Ion Concentration, Interleukin-1beta biosynthesis, Lectins isolation & purification, Lectins therapeutic use, Mice, Peritonitis drug therapy, Peritonitis pathology, Peroxidase antagonists & inhibitors, Peroxidase metabolism, Protein Structure, Secondary, Rabbits, Spectrometry, Fluorescence, Temperature, Tumor Necrosis Factor-alpha biosynthesis, Anti-Inflammatory Agents chemistry, Anti-Inflammatory Agents pharmacology, Lectins chemistry, Lectins pharmacology, Rhodophyta chemistry, Seaweed chemistry
- Abstract
Seaweeds are sources of biomolecules with biological activities and pharmacological potential - for example, lectins, a group of proteins that can bind reversibly to carbohydrates or compounds containing them. The aim of this study was to elucidate the structural properties of a lectin extracted from the red seaweed Bryothamnion triquetrum (BtL) and to investigate its anti-inflammatory activity in mice. The lectin was purified by precipitation with ammonium sulfate and ion-exchange chromatography. Its secondary structure and tryptophan (Trp) microenvironment were analyzed by circular dichroism spectroscopy and steady-state fluorescence spectroscopy, respectively. The anti-inflammatory effect was evaluated by means of paw edema induced by carrageenan or dextran, myeloperoxidase activity in paw tissue, and by measurement of leukocyte and neutrophil migration and cytokine quantification in a peritonitis model. The secondary structure of BtL is mostly composed of β-strands and unordered conformation, and it is quite resistant to extremes of pH and temperature, preserving the exposure of Trp residues under these conditions. In an assessment of biological activities, groups of mice were subjected to pretreatment with BtL before the inflammatory stimulus. BtL had anti-inflammatory effects in the models tested, and hence may be considered a molecule with potential to be used in the pharmaceutical industry., (Copyright © 2018 Elsevier B.V. All rights reserved.)
- Published
- 2018
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30. Fructooligosaccharide intake promotes epigenetic changes in the intestinal mucosa in growing and ageing rats.
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Lima GC, Vieira VCC, Cazarin CBB, Ribeiro RDR, Junior SB, de Albuquerque CL, Vidal RO, Netto CC, Yamada ÁT, Augusto F, and Maróstica Junior MR
- Subjects
- Aging genetics, Animals, Belgium, Female, Rats, Rats, Wistar, Intestinal Mucosa pathology, Oligosaccharides pharmacology
- Abstract
Purpose: The aim of this study was to investigate the relationship between fructooligosaccharide (FOS) intake at different life stages of Wistar rats and its stimulatory effects on intestinal parameters., Methods: Recently weaned and ageing female rats were divided into growing and ageing treatments, which were fed diets that partially replaced sucrose with FOS for 12 weeks., Results: Dietary FOS intake induced a significant increase in the numbers of Bifidobacterium and Lactobacillus in growing rats. FOS intake was associated with increased butyric acid levels and a reduced pH of the caecal contents at both ages. Differential gene expression patterns were observed by microarray analysis of growing and ageing animals fed the FOS diet. A total of 133 genes showed detectable changes in expression in the growing rats, while there were only 19 gene expression changes in ageing rats fed with FOS., Conclusion: These results suggest that dietary FOS intake may be beneficial for some parameters of intestinal health in growing rats.
- Published
- 2018
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31. Efficacy and safety of a four-drug fixed-dose combination regimen versus separate drugs for treatment of pulmonary tuberculosis: a systematic review and meta-analysis.
- Author
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Lima GC, Silva EV, Magalhães PO, and Naves JS
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- Africa, Americas, Drug Combinations, Drug-Related Side Effects and Adverse Reactions epidemiology, Drug-Related Side Effects and Adverse Reactions pathology, Humans, Latin America, Randomized Controlled Trials as Topic, Treatment Outcome, Antitubercular Agents adverse effects, Antitubercular Agents therapeutic use, Tuberculosis, Pulmonary drug therapy
- Abstract
Introduction: Tuberculosis, particularly multi-drug-resistant tuberculosis, is a major cause of morbidity and mortality worldwide. To the best of our knowledge, however, no study to date has assessed the combined use of the four available drugs for tuberculosis treatment, which is an issue of great clinical relevance., Objective: To determine whether the four-drug fixed-dose combination is safer or more effective than separate drugs for treatment of pulmonary tuberculosis., Methods: A systematic review of the literature was performed in accordance with Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines., Results: In pooled results from five randomized controlled trials with 3502 patients across Africa, Asia, and Latin America, four-drug fixed-dose combination therapy was no better than separate drugs therapy in terms of culture conversion after 2 and 6 months of treatment. There were no significant differences between the groups in overall incidence of adverse effects. However, the meta-analytic measure (log odds ratio) revealed that separate drugs treatment had a 1.65 [exp (0.5)=1.65] increased chance of gastrointestinal adverse effects compared to four-drug fixed-dose combination treatment., Conclusions: The reviewed studies showed that four-drug fixed-dose combination therapy provides greater patient comfort by reducing the number of pills and the incidence of gastrointestinal adverse effects, as well as simplifying pharmaceutical management at all levels., (Copyright © 2016 Sociedade Brasileira de Microbiologia. Published by Elsevier Editora Ltda. All rights reserved.)
- Published
- 2017
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32. Laparoscopic Cystoprostatectomy for Bladder Cancer in a Male patient combined with open ileal conduit urinary diversion.
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Arruda RP, Mariano MB, Pereira CF, Lima GC, Lessa TN, and Neto MC
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- Humans, Lymph Node Excision, Male, Middle Aged, Operative Time, Reproducibility of Results, Treatment Outcome, Carcinoma surgery, Laparoscopy methods, Prostatectomy methods, Urinary Bladder Neoplasms surgery, Urinary Diversion methods
- Published
- 2017
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33. Risk factors for diabetic retinopathy: a case-control study.
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Lima VC, Cavalieri GC, Lima MC, Nazario NO, and Lima GC
- Abstract
Background: Diabetic retinopathy (DR) is the major cause of blindness among working age adults. The aim of the study was to investigate risk factors for development of DR., Methods: A case-control study was performed based on data from 240 individuals (80 cases and 160 controls) attending the Outpatient Specialty Clinic of the University of South Santa Catarina (UNISUL), between Mar/2010 and May/2014. Data collection occurred through review of medical charts for presence or absence of DR, determined by an ophthalmologist. Study protocol included demographic characteristics, metabolic control, diabetes mellitus (DM) profile and comorbidities. Statistical analysis used Chi square test for qualitative variables and multivariate logistic regression analysis to select independent variables (SPSS
® 18.0 software). Odds ratio (OR) was used as measure of association. The study was approved by research ethics committee of UNISUL., Results: Mean age of group case was 59.5 years with a slight female predominance. Gender, age, body mass index were not associated with outcome. Individuals with poor glycemic control were more likely to DR (OR 3.83; 95 % CI 1.57-9.37). It was observed a positive relationship between duration of DM and DR, with higher chances in 11-15 years of disease (OR 7.52, 95 % CI 3.03-18.68) and >15 years (OR 9.01, 95 % CI 3.58-22.66). Regarding comorbidities, only diabetic nephropathy showed higher chance for DR (OR 3.32; 95 % CI 1.62-6.79)., Conclusions: Diabetic patients after 10 years of disease with poor glycemic control and nephropathy have a higher chance of DR.- Published
- 2016
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34. Overweight among children and adolescent with type I diabetes mellitus: prevalence and associated factors.
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da Costa VM, de Carvalho Padilha P, de Lima GC, Ferreira AA, Luescher JL, Porto L, and Peres WA
- Abstract
Objectives: Describe the overweight frequency (overweight and obesity) and identify the factors associated with this in children and adolescents with type 1 diabetes mellitus (T1DM) treated at a University Children's Hospital in Rio de Janeiro., Methods: This is an analytical cross-sectional study, which included patients diagnosed with T1DM who had complete anthropometric data (weight and height) and excluded those using drugs with effect on weight gain, genetic syndromes, celiac disease, hypothyroidism, renal failure and other chronic diseases, and pregnant women. The data collection was referring to the last consultation, and with respect to laboratory tests, the most recent data was collected. The dependent variable was the overweight, defined as Z score ≥1. The independent variables were gender, age, insulin dose, duration of disease, lipid profile, glycated hemoglobin, type of prescribed food planning, and place of residence. A logistic regression model was built for each outcome studied, considering significant associations those with p < 0.05., Results: The study included 195 patients with a mean age of 10.6 (±3.8) years, and 49.7 % (n = 97) aged less than 10 years. The overweight frequency was 40 % (n = 78). The age ≥10 years (OR 0.41; 95 % CI 0.20-0.86; p = 0.019) and the dose of insulin/kg ideal weight (OR 3.38; 95 % CI 1:55-7:39; p = 0.002) were considered the variables associated with overweight., Conclusions: There was a high prevalence of overweight, which explains strategies for promoting healthy eating habits and changing lifestyle with a focus on children and adolescents with diabetes.
- Published
- 2016
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35. Passiflora edulis peel intake improves insulin sensitivity, increasing incretins and hypothalamic satietogenic neuropeptide in rats on a high-fat diet.
- Author
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Lima GC, Vuolo MM, Batista ÂG, Dragano NR, Solon C, and Maróstica Junior MR
- Subjects
- Adiponectin metabolism, Animals, Gastric Inhibitory Polypeptide metabolism, Glucagon-Like Peptide 1 metabolism, Hypothalamus drug effects, Leptin metabolism, Male, Mice, Models, Animal, Neuropeptides drug effects, Polymerase Chain Reaction, Rats, Sprague-Dawley, Diet, High-Fat, Hypothalamus metabolism, Incretins metabolism, Insulin Resistance physiology, Neuropeptides metabolism, Passiflora
- Abstract
Objective: This study aimed to investigate the effect of Passiflora edulis peel flour (PEPF) intake on hypothalamic neuropeptides messenger RNA expression, insulin sensitivity, and other metabolic parameters in Sprague-Dawley rats fed a high-fat (HF) diet., Methods: Sprague-Dawley rats were divided in 3 groups: a control group, fed on a normal fat diet; a HF group, fed on a high-fat diet (35% fat [w/w]); and a high-fat Passiflora flour (HFPF) group, fed on a HF diet containing PEPF. The rats from the HFPF group as well as the HF group were kept on an HF diet for the first 4 wk to induce metabolic conditions related to obesity. Then the HFPF group was switched to a HF diet containing PEPF for additional 6 wk. Other groups were kept on normal-fat and HF diet without addition of PEPF during the whole period of experiment. The glucose tolerance and insulin sensitivity were evaluated through the glucose tolerance test (GTT) and the insulin tolerance test (ITT). Gut hormones and adipokines were measured through an immunoassay. The hypothalamic neuropeptides expression was assessed by real-time polymerase chain reaction., Results: The PEPF intake increased the hypothalamic cocaine- and amphetamine-regulated transcript expression (CART) (P < 0.05), counteracted cumulative body weight gain (P < 0.001), decreased adiposity (P < 0.05) and leptin level (P < 0.01), whereas increased adiponectin (P < 0.01), glucose-dependent insulinotropic polypeptide (P < 0.01), and glucagon-like peptide-1 (GLP-1) (P < 0.001) improved the insulin sensitivity in diet-induced obesity rats by increasing the kITT (glucose disappearance rate) (P < 0.01), which was calculated during the ITT. Other gut hormones (peptide tyrosine tyrosine, pancreatic polypeptide, and amylin) and interleukins (IL) (IL-6, tumor necrosis factor-α, IL-1β, and monocyte chemoattractant protein-1) were not changed by the PEPF intake., Conclusion: Our findings provide a further understanding of how the PEPF works as a dietary component to improve glucose homeostasis and demonstrate a molecular mechanism that may increase satiety by PEPF in diet-induced obesity., (Copyright © 2016 Elsevier Inc. All rights reserved.)
- Published
- 2016
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36. Gastroprotective effect of alpha-pinene and its correlation with antiulcerogenic activity of essential oils obtained from Hyptis species.
- Author
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Pinheiro Mde A, Magalhães RM, Torres DM, Cavalcante RC, Mota FS, Oliveira Coelho EM, Moreira HP, Lima GC, Araújo PC, Cardoso JH, de Souza AN, and Diniz LR
- Abstract
Background: Alpha-pinene (α-pinene) is a monoterpene commonly found in essential oils with gastroprotective activity obtained from diverse medicinal plants, including Hyptis species. The genus Hyptis (lamiaceae) consists of almost 400 species widespread in tropical and temperate regions of America. In the north and northeastern Brazil, some Hyptis species are used in traditional medicine to treat gastrointestinal disturbances., Objective: The present study has investigated the gastoprotective effect of purified α-pinene in experimental gastric ulcer induced by ethanol and indomethacin in mice., Materials and Methods: Gastric ulcers were induced in male Swiss mice (20-30 g) by oral administration of absolute ethanol or indomethacin 45 min after oral pretreatment with vehicle, standard control drugs or α-pinene (10, 30, and 100 mg/kg). One hour after the ulcerative challenges, the stomach were removed, and gastric lesions areas measured. The effects of α-pinene on the gastric juice acidity were determined by pylorus ligation model. The gastrointestinal motility and mucus depletion were determined by measuring the gastric levels of phenol red and alcian blue, respectively. Hematoxylin and eosin stained sections of gastric mucosa of the experimental groups were used for histology analysis., Results: α-pinene pretreatment inhibited ethanol-induced gastric lesions, reduced volume and acidity of the gastric juice and increased gastric wall mucus (P < 0.05). Furthermore, we showed an interesting correlation between concentration of α-pinene and gastroprotective effect of Hyptis species (P Pearson = 0.98)., Conclusion: Our data showed that the α-pinene exhibited significant antiulcerogenic activity and a great correlation between concentration of α-pinene and gastroprotective effect of Hyptis species was also observed.
- Published
- 2015
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37. Comparative analysis electroencephalographic of alpha, Beta and gamma bands of a healthy individual and one with hemiparesis.
- Author
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Machado Dde C, Lima GC, Souza Dos Santos R, Ramos AJ, Menezes de Sousa CC, Moreira Dos Santos RP, Coelho KK, Cagy M, Orsini M, and Bastos VH
- Abstract
[Purpose] The study analyzed the electroencephalographic (EEG) data of the central cortical areas, during execution of the motor gestures of feeding, activation of the system of mirror neurons, and imagery between a right hemiparetic volunteer (RHV) and a healthy volunteer (HV). [Subjects and Methods] The volunteers' EEG data were recorded with their eyes open for 4 minutes while they performed five experimental tasks. [Results] The alpha band, absolute power value of HV was lower than that of RHV. In the beta band, during the practice condition, there was an increase in the magnitude of the absolute power value of HV at T3, possibly because T3 is representative of secondary motor areas that work with cortical neurons related to planning and organizing sequence of movements performed by the hands. The gamma band is related to the state of preparation for movement and memory. The results of this study indicate that there was increased activation of the gamma frequency band of HV. [Conclusion] The findings of this study have revealed the changes in pattern characteristics of each band which may be associated with the brain injury of the hemiparetic patient.
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- 2014
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38. Assessing the epidemiological data of Staphylococcus aureus food poisoning occurred in the State of Rio Grande do Sul, Southern Brazil.
- Author
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Lima GC, Loiko MR, Casarin LS, and Tondo EC
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Brazil epidemiology, Child, Child, Preschool, Female, Humans, Infant, Male, Middle Aged, Prevalence, Young Adult, Disease Outbreaks, Foodborne Diseases epidemiology, Staphylococcus aureus isolation & purification
- Abstract
Staphylococcal food poisoning is one of the most frequent foodborne illnesses worldwide and it is caused by the ingestion of food contaminated with enterotoxins produced by some strains of Staphylococcus (S.) aureus. In the State of Rio Grande do Sul (RS), Southern Brazil, S. aureus has been identified as the second most frequent agent of foodborne illnesses in the last two decades. The aim of the present study was to assess and analyse the epidemiological data of S. aureus food poisoning occurred in the State of RS during the years of 2000 to 2002. The official records of epidemiological investigations carried out by the Sanitary Surveillance Services of the State of RS were analysed. Among foodborne outbreaks for which aetiology was determined, S. aureus was identified as the responsible agent of 57 foodborne outbreaks, being 42 (74%) confirmed by microbiological analyses and 15 (26%) confirmed by clinical symptoms and/or epidemiological data. Staphylococcal outbreaks were responsible for the exposition of 5,991 persons, of which 1,940 (32%) were interviewed by the Sanitary Surveillance officers. The most affected age group corresponded to people with 20 to 49 years old (48%), where men (48%) and women (52%) were affected similarly. The main involved food vehicles were meats servings (35%), followed by pastries (25%), cheese (23%), pasta (11%) and potato salad with homemade mayonnaise (11%). The majority of the outbreaks occurred inside private homes (33%) followed by commercial food establishments (28%). Inadequate control of temperature and failures in general hygiene practices were identified as the main factors responsible for the outbreaks. In conclusion, S. aureus was an important food poisoning etiological agent in the State of RS during 2000 to 2002 and its prevention depends on control measures involving different parts of the food chain.
- Published
- 2013
- Full Text
- View/download PDF
39. Gastroprotective effects of the essential oil of Hyptis crenata Pohl ex Benth. on gastric ulcer models.
- Author
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Diniz LR, Vieira CF, Santos EC, Lima GC, Aragão KK, Vasconcelos RP, Araújo PC, Vasconcelos Yde A, Oliveira AC, Oliveira HD, Portella VG, and Coelho-de-Souza AN
- Subjects
- Animals, Anti-Ulcer Agents isolation & purification, Disease Models, Animal, Gastric Mucosa drug effects, Gastric Mucosa metabolism, Gastric Mucosa pathology, Gastrointestinal Motility drug effects, Lipid Peroxidation drug effects, Male, Mice, Oils, Volatile isolation & purification, Plant Leaves chemistry, Plant Oils isolation & purification, Stomach Ulcer metabolism, Stomach Ulcer pathology, Anti-Ulcer Agents therapeutic use, Hyptis chemistry, Oils, Volatile therapeutic use, Plant Oils therapeutic use, Stomach Ulcer prevention & control
- Abstract
Ethnopharmacological Relevance: Hyptis crenata Pohl ex Benth (Lamiaceae), popularly known as "hortelã-brava" or "hortelã do campo", is widely distributed in the northeast of Brazil. In Brazil, the leaves of this plant have been used in traditional medicine for the treatment of gastrointestinal disturbances, including gastric ulcers. In an attempt to experimentally validate this claimed antiulcerogenic activity, the gastroprotective effects of the essential oil extracted from the leaves of the Hyptis crenata Pohl ex Benth (EOHc) were evaluated in recognized gastric ulcer models in mice., Materials and Methods: EOHc was obtained by hydrodistillation and analyzed using gas chromatography-mass spectrometry (GC-MS). Swiss male mice (25-30g) were used for the studies. The gastric ulcers were induced by oral administration of absolute ethanol or indomethacin 45min after oral pretreatment with EOHc, vehicle and positive control drugs. One hour after the ulcerative challenges, the stomachs were removed and the area of the lesions was measured. The volume, pH and total acidity of the gastric secretions were determined using the pylorus ligature model. The gastrointestinal motility was measured using gastric emptying and intestinal transit. The ethanol-induced gastric mucus depletion and lipid peroxidation were also analyzed., Results: Our findings are as follows: A significant inhibition of gastric lesions induced by absolute ethanol was observed in the mice pre-treated with EOHc, at a dose of 30 and 100 and 300mg/kg (5.56±1.51, 2.88±0.82 and 1.71±0.54mm(2), respectively) compared to control group (118.03±35.4mm(2)). Also, EOHc (300mg/kg) produced a gastroprotective effect against the gastric lesions induced by indomethacin (16.07±4.68mm(2)) compared to control group (38.64±6.1mm(2)). EOHc pretreatment produced a reduction in the ethanol-induced lipid peroxidation from 3.9±0.22 to 2.4±0.1μmol/mg tissue (EOHc-300mg/kg and control group, respectively). We also observed that EOHc pretreatment decreased the gastric emptying, but did not alter the intestinal transit ratio, ethanol-induced depletion of the gastric wall mucus or secretion parameters (volume, pH and [H(+)])., Conclusion: Our data indicate that EOHc exerts a gastroprotective effect, indicated by its significant inhibition of gastric lesions in ethanol- and indomethacin-induced ulcer models, which may be associated with its accelerating effect on gastric emptying and reduction in oxidative damages. Our data suggest a potential therapeutic application for EOHc in the treatment of gastric ulcers., (© 2013 Elsevier Ireland Ltd. All rights reserved.)
- Published
- 2013
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40. Determination of selenium using atomically imprinted polymer (AIP) and hydride generation atomic absorption spectrometry.
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de Lima GC, do Lago AC, Chaves AA, Fadini PS, and Luccas PO
- Subjects
- Animals, Fishes, Food Analysis, Imidazoles chemistry, Molecular Imprinting, Muscles chemistry, Pyridines chemistry, Polymers chemistry, Selenium analysis, Spectrophotometry, Atomic
- Abstract
This paper describes selenium determination based on Se(0) preconcentration in the imprinted polymer (synthesized with 2.25mmol SeO2, 4-vinylpyridine and 1-vinylimidazole) with subsequent detection on-line in HG-FAAS. During the synthesis, SeO2 is reduced to Se (0). Therefore, there are no MIP neither IIP in the present work, thus we denominated: AIP, i.e., atomically imprinted polymers. For the optimization of analytical parameters Doehlert design was used. The method presented limit of detection and limit of quantification of 53 and 177ngL(-1), respectively, and linear range from 0.17 up to 6μgL(-1) (r=0.9936). The preconcentration factor (PF), consumptive index (CI) and concentration efficiency (CE) were 232; 0.06mL and 58min(-1) respectively. The proposed method was successfully applied to determine Se in Brazil nuts (0.33±0.03mgkg(-1)), apricot (0.46±0.02mgkg(-1)), white bean (0.47±0.03mgkg(-1)), rice flour (0.47±0.02mgkg(-1)) and milk powder (0.22±0.01mgkg(-1)) samples. It was possible to do 12 analyzes per hour. Accuracy was checked and confirmed by analyzing certified reference material (DORM-2, dogfish muscle), and samples precision was satisfactory with RSD lower than 10%., (Copyright © 2013 Elsevier B.V. All rights reserved.)
- Published
- 2013
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41. Postchemotherapy laparoscopic retroperitoneal lymph node dissection: evaluation of complications.
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Permpongkosol S, Lima GC, Warlick CA, Allaf ME, Varkarakis IM, Bagga HS, Kohanim S, and Kavoussi LR
- Subjects
- Adolescent, Adult, Biopsy, Needle, Chemotherapy, Adjuvant, Drug Administration Schedule, Follow-Up Studies, Humans, Laparoscopy methods, Lymph Nodes pathology, Lymph Nodes surgery, Male, Middle Aged, Neoplasm Staging, Neoplasms, Germ Cell and Embryonal mortality, Neoplasms, Germ Cell and Embryonal pathology, Probability, Remission Induction, Retroperitoneal Space, Retrospective Studies, Risk Assessment, Survival Analysis, Testicular Neoplasms mortality, Testicular Neoplasms pathology, Treatment Outcome, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Lymph Node Excision methods, Neoplasms, Germ Cell and Embryonal surgery, Neoplasms, Germ Cell and Embryonal therapy, Testicular Neoplasms therapy
- Abstract
Objectives: Initial publications on postchemotherapy laparoscopic retroperitoneal lymph node dissection (LRPLND) have described significant intraoperative and postoperative morbidities. This report reviewed the complication rate with additional experience., Methods: A retrospective review of the medical records of 16 consecutive patients who underwent postchemotherapy LRPLND by a single surgeon from September 1996 to September 2005 was performed. The evaluation included tumor type, clinical stage, pathologic stage, and intraoperative and postoperative complications., Results: Postchemotherapy LRPLND was successfully performed in 14 (87.5%) of 16 patients. Seven patients (43.8%) developed complications and 2 (12.5%) required open conversion. The most complications occurred during the postoperative period and were classified as minor. Of the total patient population, 25% had minor postoperative complications. The median hospital stay was 2 days. No patient who underwent the procedure died. All intraoperative complications were vascular injuries and occurred during the first half of the series (1996 to 2000). In the second half of the series (2000 to 2005), no complications during the operative period and no vascular or major complications occurred. No retroperitoneal recurrence was noted during a mean follow-up of 32.7 months (range 5 to 108). One patient developed distant recurrence and underwent successful salvage chemotherapy., Conclusions: Postchemotherapy LRPLND remains a challenging, but feasible, operation. With greater experience, the incidence of complications and morbidity can be reduced.
- Published
- 2007
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42. Reinstatement of continuous ambulatory peritoneal dialysis after transperitoneal laparoscopic nephrectomy.
- Author
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Rais-Bahrami S, Romero FR, Lima GC, Kohanim S, and Kavoussi LR
- Subjects
- Adult, Aged, Female, Humans, Kidney Neoplasms surgery, Laparoscopy, Male, Middle Aged, Retrospective Studies, Time Factors, Kidney Failure, Chronic therapy, Nephrectomy, Peritoneal Dialysis, Continuous Ambulatory
- Abstract
Objectives: To assess the early reinstatement of continuous ambulatory peritoneal dialysis (CAPD) after transperitoneal radical nephrectomy., Methods: The medical records of the 3 patients who were using CAPD before laparoscopic radical nephrectomy were retrospectively reviewed. All 3 were reinstated on CAPD during the second postoperative week., Results: In these 3 patients, the mean hospital stay was 6 days (range 3 to 9), and CAPD was reinitiated 12.7 days (range 10 to 14) after laparoscopic surgery. During the interim between surgery and reinstituting CAPD, all 3 patients underwent hemodialysis (HD) in the hospital and were discharged to local outpatient HD centers. No difficulties were associated with the transition to CAPD, and no complications had occurred after the reinstatement of regular CAPD regimens at a mean follow-up of 11 months (range 10 to 13) in this group of patients., Conclusions: The results of this study have shown that CAPD can be reinstated within 2 weeks of laparoscopic transperitoneal radical nephrectomy without short-term complications.
- Published
- 2006
- Full Text
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43. Allergic bronchopulmonary aspergillosis presenting a glove-finger shadow in radiographic images.
- Author
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Kalil ME, Fernandes AL, Curzel AC, Cortez MZ, and Lima GC
- Subjects
- Adult, Aspergillosis, Allergic Bronchopulmonary drug therapy, Female, Humans, Immunoglobulin E immunology, Tomography, X-Ray Computed, Albuterol therapeutic use, Aspergillosis, Allergic Bronchopulmonary diagnosis, Aspergillus fumigatus immunology, Bronchodilator Agents therapeutic use, Prednisolone therapeutic use
- Abstract
Allergic bronchopulmonary aspergillosis is a lung disease occurring in patients with asthma or cystic fibrosis, triggered by a hypersensitivity reaction to the presence of Aspergillus fumigatus in the airways. We report herein the case of a patient presenting a clinical profile suggestive of asthma and meeting the clinical, laboratory testing and radiological criteria for a diagnosis of allergic bronchopulmonary aspergillosis. The importance of such findings is that early diagnosis can reduce the risk of respiratory exacerbations and fibrosis.
- Published
- 2006
44. [Study on choroidal melanoma at the Ophthalmology Unit of the Regional Hospital of São José--Santa Catarina].
- Author
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Grumann Júnior A, Adam Neto A, Lima GC, Vergini F, and de Souza Tde A
- Subjects
- Adult, Age Distribution, Aged, Aged, 80 and over, Choroid Neoplasms surgery, Eye Enucleation, Female, Humans, Male, Melanoma surgery, Middle Aged, Visual Acuity, Choroid Neoplasms diagnosis, Melanoma diagnosis
- Abstract
Purpose: To describe the characteristics of patients choroidal melanoma diagnosed and treated at the Ophthalmology Unit of the Regional Hospital of São José - Santa Catarina, and to show the results., Methods: Analysis of 24 medical records of patients with a diagnosis of malignant choroidal melanoma from, March 1st 1997 to July 21st 2003, regarding: age, gender, race, symptoms and duration, diagnostic methods, performed treatment, size and type of tumor., Results: There was no difference regarding gender, and the average age of patients was about 57.2 +/- 16.56 years. The tumor predominated in white people (83.33%) and low visual acuity was the most frequent symptom (83.33%). The average time from the beginning of symptomalogy up to the initial treatment was 152.12+/-114.00 days. Indirect ophtalmoscopy and ultrasound were performed in all the patients in order to diagnose the tumor. All patients underwent enucleation, because they showed large tumors (greatest basal diameter higher than 16 mm at to USG). The most frequent type was that of fusiform cells (58.5%) and the average size of the tumors was 11.8+/-4.5 mm basal diameter. Two patients presented systemic metastasis., Conclusions: All patients were diagnosed when the tumor was already advanced, making the visual and systemic prognostic worse and reducing the therapeutic options, and therefore were enucleated.
- Published
- 2006
- Full Text
- View/download PDF
45. Clinical sequelae of radiographic iceball involvement of collecting system during computed tomography-guided percutaneous renal tumor cryoablation.
- Author
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Warlick CA, Lima GC, Allaf ME, Varkarakis I, Permpongkosol S, Schaeffer EM, Kavoussi LR, Jarrett TW, and Solomon SB
- Subjects
- Adult, Aged, Aged, 80 and over, Carcinoma, Renal Cell diagnostic imaging, Female, Follow-Up Studies, Humans, Kidney Neoplasms diagnostic imaging, Male, Middle Aged, Retrospective Studies, Surgery, Computer-Assisted, Tomography, X-Ray Computed, Carcinoma, Renal Cell therapy, Cryosurgery, Kidney Neoplasms therapy, Kidney Tubules, Collecting diagnostic imaging, Postoperative Complications
- Abstract
Objectives: Percutaneous renal tumor cryoablation is being evaluated as a treatment option for small renal tumors. However, when tumors are located centrally, involvement of the collecting system by the radiographic iceball can occur. We reviewed our series of computed tomography (CT)-guided percutaneous renal tumor cryoablation to identify those cases in which there appeared to be involvement of the collecting system by the radiographic iceball and to determine any clinical sequelae of such involvement., Methods: Retrospective review of the medical records identified 6 patients who had undergone CT-guided percutaneous renal tumor cryoablation with evidence of collecting system involvement. Measurements of the tumor size, size of the radiographic iceball, and the size of the immediate postprocedure "cryozone" (region of apparent treatment on contrast-enhanced CT) were obtained from the preprocedure, intraprocedure, and immediate postprocedure CT scans. Follow-up imaging was obtained beginning at 3 to 6 months., Results: Six patients were identified who met the inclusion criteria and had at least 3 months of documented follow-up. Despite the apparent involvement of the collecting system during the cryoablation procedure, no patient developed clinical signs or symptoms or radiographic evidence of a urine leak or fistula formation. Furthermore, no evidence of ureteral narrowing or stricture formation has been found to date, with a mean follow-up of 167.7 days (range 90 to 288)., Conclusions: We observed no clinically appreciable urine leaks despite what appeared to be obvious involvement of the collecting system by the radiographic iceball. However, care should be exercised to avoid this insult when possible until additional research has confirmed its safety.
- Published
- 2006
- Full Text
- View/download PDF
46. Intraoperative conversion of laparoscopic partial nephrectomy.
- Author
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Rais-Bahrami S, Lima GC, Varkarakis IM, Romero FR, Trock B, Jarrett TW, and Kavoussi LR
- Subjects
- Adult, Aged, Carcinoma, Renal Cell pathology, Carcinoma, Renal Cell surgery, Female, Follow-Up Studies, Humans, Kidney Neoplasms pathology, Kidney Neoplasms surgery, Laparoscopy adverse effects, Logistic Models, Male, Middle Aged, Multivariate Analysis, Probability, Retrospective Studies, Risk Assessment, Treatment Outcome, Intraoperative Complications surgery, Laparoscopy methods, Laparotomy methods, Nephrectomy methods
- Abstract
Purpose: To assess the incidence of conversion from laparoscopic partial nephrectomy (LPN) to open surgery or laparoscopic radical nephrectomy (LRN) when liberal selection criteria are utilized., Patients and Methods: A retrospective review of medical records was done for all patients scheduled for LPN at our institution from January 2000 through March 2004. The preoperative risk factors, intraoperative course, and pathologic outcomes of patients who were converted to LRN were compared with those of the cohort of patients who underwent LPN as originally scheduled., Results: Among the 257 operations that started as LPN, 35 (13.6%) were converted to LRN and 4 (1.6%) to open surgery. Age, tumor size, operating time, and hypertension were significantly higher in patients requiring conversion in than those who underwent completed LPN. Patients over the age of 70 had a 3.8-fold higher risk of requiring conversion, and, independent of age, patients with tumor>4.0 cm had a 4-fold increase in the likelihood of conversion to LRN., Conclusion: Of the preoperatively determined factors compared across the cohort of patients who underwent LPN and the cohort of patients converted to LRN, only tumor size and patient age were predictive of an increased risk of conversion. Other variables, including sex, side of affected kidney, clinical stage, ASA score, comorbidity with hypertension or diabetes mellitus, and surgeon were not significant in predicting conversion.
- Published
- 2006
- Full Text
- View/download PDF
47. Refining the laparoscopic retroperitoneal lymph node dissection for testicular cancer.
- Author
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Romero FR, Wagner A, Brito FA, Muntener M, Lima GC, and Kavoussi LR
- Subjects
- Humans, Male, Retroperitoneal Space, Laparoscopy methods, Lymph Node Excision methods, Neoplasms, Germ Cell and Embryonal surgery, Testicular Neoplasms surgery
- Abstract
Since its initial description, the laparoscopic retroperitoneal lymph node dissection has evolved considerably, from a purely diagnostic tool performed to stage germ cell testicular cancer to a therapeutic operation that fully duplicates the open technique. Herein, we describe the current technique employed at our institution, along with illustrations of all surgical steps, and delineate the refinements of the technique over time.
- Published
- 2006
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- View/download PDF
48. Laparoscopic ureteral reimplantation: a simplified dome advancement technique.
- Author
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Lima GC, Rais-Bahrami S, Link RE, and Kavoussi LR
- Subjects
- Humans, Urologic Surgical Procedures methods, Laparoscopy, Replantation methods, Ureter surgery, Ureteral Obstruction surgery
- Abstract
Laparoscopic Boari flap reimplantation has been used to treat long distal ureteral strictures. This technique requires extensive bladder mobilization and complex intracorporeal suturing. This demonstrates a novel laparoscopic bladder dome advancement approach for ureteral reimplantation. This technique obviates the need for bladder pedicle dissection and simplifies the required suturing.
- Published
- 2005
- Full Text
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49. Laparoscopic retroperitoneal lymph node dissection after prior open retroperitoneal lymphadenectomy and chemotherapy.
- Author
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Lima GC, Kohanim S, Rais-Bahrami S, and Kavoussi LR
- Subjects
- Adult, Humans, Lymphatic Metastasis, Male, Neoplasms, Germ Cell and Embryonal pathology, Retroperitoneal Space, Testicular Neoplasms pathology, Laparoscopy, Lymph Node Excision methods, Neoplasms, Germ Cell and Embryonal drug therapy, Testicular Neoplasms drug therapy, Testicular Neoplasms surgery
- Abstract
Laparoscopic retroperitoneal lymphadenectomy for testicular cancer is a challenging surgical procedure. Several factors can increase the difficulty, including prior chemotherapy or open surgery. We present a case of a laparoscopic "redo" postchemotherapy nodal dissection to treat a residual retroperitoneal mass in a patient with non-seminomatous germ cell tumor. This approach allowed rapid recovery, and at 2.5 years after surgery no evidence of tumor recurrence was seen.
- Published
- 2005
- Full Text
- View/download PDF
50. Laparoscopic renal-adrenal surgery in patients on oral anticoagulant therapy.
- Author
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Varkarakis IM, Rais-Bahrami S, Allaf ME, Lima GC, Permpongkosol S, Rao P, Jarrett TW, and Kavoussi LR
- Subjects
- Administration, Oral, Adult, Aged, Anticoagulants administration & dosage, Blood Loss, Surgical physiopathology, Blood Transfusion statistics & numerical data, Female, Humans, Long-Term Care, Male, Middle Aged, Postoperative Complications blood, Postoperative Hemorrhage blood, Postoperative Hemorrhage chemically induced, Retrospective Studies, Risk, Thromboembolism blood, Thromboembolism chemically induced, Warfarin administration & dosage, Adrenalectomy, Anticoagulants adverse effects, Laparoscopy, Nephrectomy, Postoperative Complications chemically induced, Warfarin adverse effects
- Abstract
Purpose: Patients requiring chronic anticoagulation are theoretically at increased risk for hemorrhage or thromboembolism perioperatively. Experience with laparoscopic renal/adrenal surgery in patients on chronic warfarin is limited. We assessed hemorrhagic/thromboembolic complications in this group of patients., Materials and Methods: The records of 787 patients undergoing laparoscopic renal/adrenal surgery were retrospectively reviewed. A total of 25 patients on chronic oral anticoagulation with warfarin were identified. The indications for warfarin therapy as well as perioperative management were reviewed. Clinical parameters, including operative time, estimated blood loss, hemorrhagic/thromboembolic complications and transfusions, were documented and compared with those in patients not receiving chronic anticoagulation., Results: Atrial fibrillation (56% of cases) and a prosthetic mitral valve (28%) were the most frequent indications for chronic anticoagulation. Bridging anticoagulation with unfractionated heparin was the most frequent management method (68% of cases). Patients with anticoagulation were older (p <0.001) and hospitalized longer (<0.001) than those without anticoagulation. Operative time, estimated blood loss and the conversion rate were not significantly different between the groups. However patients on chronic warfarin significantly more often required transfusion (24% vs 5.2%, p <0.005) and had more postoperative bleeding episodes (8% vs 0.9%, p <0.05) than patients not on chronic anticoagulation. No thromboembolic events occurred in the anticoagulated group, while 3 occurred in the nonanticoagulated group (p = 1)., Conclusions: Laparoscopic renal/adrenal surgery in patients requiring chronic anticoagulation therapy can be performed safely. The risk of intraoperative bleeding is not increased, although the incidence of postoperative bleeding as well as transfusions is higher.
- Published
- 2005
- Full Text
- View/download PDF
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