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VASCULAR TRAUMA IN THE AMAZON REGION: A TWO YEARS CASES REVIEW fROM A SINGLE INSTITUTION

Health 2014年第6期6卷 517-530页

作者： Adenauer Marinho de Oliveira Góes Jr. Allan Dias Vasconcelos Rodrigues fábio brito braga Mariseth Carvalho de Andrade Simone de Campos Vieira Abib Department of Surgery (CESUPA) Belém Brazil

Introduction: Vascular injuries are among the main mechanisms of death in trauma. In Brazil, the general surgeon is in charge of emergencies procedures in most hospitals, but many times these surgeons are not familiarized with more complex vascular surgical techniques that often require a vascular surgeon. Pará State is the most populated one in the Brazilian Amazon region and a single hospital with vascular surgeons permanently on call is available. Objectives: To evaluate demographic data on vascular trauma victims;to establish the mechanism, anatomic location, injury pattern and surgical techniques used to manage the vascular lesions treated at the Metropolitan Emergency Hospital;to ascertain associated non-vascular injuries and victim’s clinical outcome. Methods: Retrospective analysis of medical records of patients treated for vascular injuries from february 2011 to february 2013 at the institution in case. All arterial and venous injuries were analyzed. Patients who were not operated by the vascular surgery team, iatrogenic injuries and those who underwent primary or sustained traumatic amputation were excluded. Results: 173 cases;95.95% were male;54.90% were between 25 and 49 years;penetrating trauma mechanisms were found in 88.44%;lower limb was the most affected topography (41.50%);the most injured vessels were the superficial femoral and ulnar arteries (in 15.75% of cases each) and the superficial femoral vein (17.77 %);autologous vein graft was the most performed technique for arterial repair (36.57%) and ligature was performed in 85.00% of venous trauma;amputation rate was 15.60% and mortality rate was 6.35%. Conclusions: Vascular injuries occurred predominantly in men from 24 to 49 years old;penetrating mechanisms were most frequent;lower limb was the most affected topography;the most frequently injured vessels were the ulnar and superficial femoral arteries and the superficial femoral vein;complete vessel transection was the most common injury pattern;

关键词： External Causes Amazon. Blood vessels Wounds and Injuries Vascular System Injuries

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Chemical composition, antiparasitic and cytotoxic activities of aqueous extracts of Ziziphus joazeiro Mart

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Asian Pacific Journal of Tropical biomedicine 2019年第5期9卷 222-226页

作者： Jacqueline Cosmo ANDrade Ana Raquel Pereira da Silva Ant?nia Thassya Lucas dos Santos Maria Audilene freitas Yedda Maria Lobo Soares de Matos Maria flaviana Bezerra Morais braga Camila fonseca Bezerra Maria Isabeli Pereira Gon?alo Maria Celeste Vega Gomez Míriam Rolóm Cathia Coronel Paulo Riceli Vasconcelos Ribeiro Edy Sousa de brito Henrique Douglas Melo Coutinho Microbiology and Molecular biology Laboratory Biological Chemistry Department Regional University of Cariri-URCA bioassays Laboratory-LAbio Federal University of Cariri-UFCA Brejo Santo University campus (CE) Center for the Development of Scientific Research Moisés Bertoni Foundation/Díaz Gill Laboratories Natural Products Chemistry Multiuser Laboratory LMQPN Embrapa Tropical Agroindustry

Objective: To compare the in vitro antiparasitic activity of aqueous extracts from Ziziphus joazeiro leaves and stem bark against Trypanosoma cruzi, Leishmania braziliensis, and Leishmania infantum, as well as to evaluate its cytotoxicity in mammalian cells, in addition to identifying the chemical composition of the extracts. Methods: Ziziphus joazeiro leaf and stem bark aqueous extracts were prepared by cold extraction maceration and subjected to ultra-efficient liquid chromatography coupled to a quadrupole/time of flight system. The susceptibility assays used Trypanosoma cruzi CLB5 strains and promastigote forms of Leishmania braziliensis and Leishmania infantum for antiparasitic activity of the extracts. Moreover, mammalian fibroblasts NCTC clone 929 were used for cytotoxicity analysis. Results: Terpenoid compounds, flavonoids and phenolic acid were identified in extracts. The stem bark aqueous extracts presented more significant results in terms of antiparasitic activity compared with the leaf aqueous extracts, especially against Leishmania braziliensis and Leishmania infantum promastigote forms with an IC50 f the stem bark aqueous extracts, which is relevant information for the rational use of this plant part since it is widely used by the population. Conclusions: These preliminary results may contribute to the formulation of new therapeutic agents against this group of neglected diseases, so further investigations are required to delineate the mechanisms of action mainly of the aqueous extract of stem bark of Ziziphus joazeiro.

关键词： Antiepimastigote Antipromastigote UPLC-MS-ESI-QTOf

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Litterfall dynamics and soil carbon and nitrogen stocks in the Brazilian palm swamp ecosystems

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forest Ecosystems 2020年第3期7卷 499-510页

作者： Gracielle de brito Sales Taynan Aquilles Marinho Lessa Daniela Aparecida freitas Maria das Dores Magalhães Veloso Maria Ligia de Souza Silva Luiz Arnaldo fernandes Leidivan Almeida frazão Instituto de Ciências Agrárias Universidade Federal de Minas GeraisAvenida Universitária1000Montes ClarosMG39404-547Brazil Universidade Estadual de Montes Claros Avenida Professor Rui Braga S/NMontes ClarosMG39401-089Brazil Universidade federal de Lavras Campus UniversitárioCP 3037LavrasMG37299-000Brazil

Background: This study aimed to determine the litterfall production, accumulation, decomposition rate and nutrient stocks, and to estimate the soil carbon(C) and nitrogen(N) stocks in three palm swamp ecosystems with different land use intensities in the Southeast of ***: Three palm swamp ecosystems with different land use intensities were evaluated: Agua Doce(AD),conserved area;Capivara(CV), area with small agricultural practices;and Buriti Grosso(BG), area with an intensive land use. Produced and accumulated litterfall from the Cerrado areas surrounding the palm swamps were collected from October 2014 to September 2015, and the Ca, Mg, K, and P concentrations were determined in the dry and rainy seasons. Soil samples were collected in the surrounding Cerrado and within the palm swamps until 100 cm soil depth to determine bulk density and soil C and N contents and ***: Annual litterfall production in the Cerrado surrounding palm swamps was similar in AD(3.58 Mg·ha^-1·year^-1) and CV(3.79 Mg·ha^-1·year^-1), and was lower in BG(2.84 Mg·ha^-1·year^-1), and was more intense during the dry season. furthermore, litterfall accumulation was higher in CV(7.12 Mg·ha^-1·year^-1) and BG(6.75 Mg·ha^-1·year^-1), culminating in lower decomposition rates. AD showed the highest decomposition rate(0.60) due to its vegetation structure and conservation. The macronutrient contents from the production and accumulated litterfall had a low influence of the land use, decreasing in the following order: Ca > K > Mg > P. Soils in CV and BG palm swamp areas showed higher values of C and N contents, due to the use of land for agricultural crops and cattle raising in an extensive(rangeland) system. The BG palm swamp, showed the highest C(124.03 Mg·ha^-1) and N(10.54 Mg·ha^-1) stocks due to the land use history with different agricultural practices over ***: The litterfall dynamics in the Cerrado surrounding palm swamps was more affected by climatic variables t

关键词： Nutrient cycling Soil fertility Soil organic matter Decomposition rate

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Video capsule endoscopy vs double-balloon enteroscopy in the diagnosis of small bowel bleeding:A systematic review and metaanalysis

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World Journal of Gastrointestinal Endoscopy 2018年第12期10卷 400-421页

作者： Hélcio Pedrosa brito Igor braga Ribeiro Diogo Turiani Hourneaux de Moura Wanderley Marques Bernardo Dalton Marques Chaves Rogério Kuga Ethan Dwane Maahs Robson Kiyoshi Ishida Eduardo Turiani Hourneaux de Moura Eduardo Guimaraes Hourneaux de Moura Department of Endoscopy of Clinics Hospital of Sao Paulo University Sao Paulo 05403-00Brazil Molecular and Cell biology University of CaliforniaCaliforniaBerkeleyCA 94720United States

AIM To compare the diagnostic accuracy of video capsule endoscopy(VCE) and double-balloon enteroscopy(DBE) in cases of obscure gastrointestinal bleeding(OGIB) of vascular *** MEDLINE(via PubMed), LILACS(via BVS) and Cochrane/CENTRAL virtual databases were searched for studies dated before 2017. We identified prospective and retrospective studies, including observational, cohort, single-blinded and multicenter studies, comparing VCE and DBE for the diagnosis of OGIB, and data of all the vascular sources of bleeding were collected. All patients were subjected to the same gold standard method. Relevant data were then extracted from each included study using a standardized extraction form. We calculated study variables(sensitivity, specificity, prevalence, positive and negative predictive values and accuracy) and performed a meta-analysis using Meta-Disc *** In the per-patient analysis, 17 studies(1477 lesions) were included. We identified3150 exams(1722 VCE and 1428 DBE) in 2043 patients and identified 2248 sources of bleeding, 1467 of which were from vascular lesions. Of these lesions, 864(58.5%) were diagnosed by VCE, and 613(41.5%) were diagnosed by DBE. The pretest probability for bleeding of vascular origin was 54.34%. The sensitivity of DBE was 84%(95%CI: 0.82-0.86; heterogeneity: 78.00%), and the specificity was92%(95%CI: 0.89-0.94; heterogeneity: 92.0%). for DBE, the positive likelihood ratio was 11.29(95%CI: 4.83-26.40; heterogeneity: 91.6%), and the negative likelihood ratio was 0.20(95%CI: 0.15-0.27; heterogeneity: 67.3%). Performing DBE after CE increased the diagnostic yield of vascular lesion by 7%, from 83% to90%.CONCLUSION The diagnostic accuracy of detecting small bowel bleeding from a vascular source is increased with the use of an isolated video capsule endoscope compared with isolated DBE. However, concomitant use increases the detection rate of the bleeding source.

关键词： Small bowel bleeding Hemorrhage Upper gastrointestinal bleeding Obscure hemorrhage Enteroscopy

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HPV Vaccination in Young Girls from Developing Countries: What Are the Barriers for Its Implementation? A Systematic Review

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Health 2020年第6期12卷 671-693页

作者： Inês Maria brito Gonçalves Joana Rafaela Magalhães fernandes filipa Ribeiro Adhemar Longatto-filho School of Medicine University of Minho Braga Portugal Life and Health Sciences Research Institute (ICVS) School of Medicine University of Minho Braga Portugal ICVS/3B’s-PT Government Associate Laboratory Braga/Guimar&#227 es Portugal Molecular Oncology Research Center Barretos Cancer Hospital Barretos S&#227 o Paulo Brazil Medical Laboratory of Medical Investigation (LIM) 14 Department of Pathology Medical School University of S&#227 o Paulo S&#227 o Paulo Brazil

Cervical cancer is the second most common cancer in women living in developing countries that account high HPV incidence and mortality rates. Vaccinating girls between 9 and 14 years old is supposed to be the most cost-effective public health approach against cervical cancer. This systematic review aims to assess the application and coverage of the HPV vaccine in developing countries and identify the main challenges for the introduction of the vaccine in these settings. Eligible studies were selected according to the defined inclusion and exclusion criteria. To determine the quality of the studies was employed the STROBE checklist. This review included seven studies, encompassing the analysis of 19 countries and 112,116 girls aged from 9 to 18 years old. The coverage of HPV vaccination ranged from 13.8% to 107.4%, with most of the programs having more than 60% of coverage, which reflects a high percentage of vaccinated girls. The main challenges were lack of knowledge and worries about the vaccine, insufficient financial resources and staff workers, lack of community involvement and dissemination of important information about HPV. In developing countries that implemented the HPV vaccine, high coverage rates were achieved, despite sociocultural, economic and political challenges. In the future, studies that analyze the coverage rates after the elimination of the barriers and the repercussions on the mortality rates should be conducted, so that more developing countries have the opportunity to efficiently implement the vaccine.

关键词： HPV Vaccine HPV Knowledge and Education HPV-Induced Cancer Papillomavirus Vaccine Awareness Cervical Cancer Mortality HPV Incidence HPV in Developing Countries

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Relationship between Th17 immune response and cancer

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World Journal of Clinical Oncology 2021年第10期12卷 845-867页

作者： Hanna Santos Marques Breno Bittencourt de brito filipe Antônio frança da Silva Maria Luísa Cordeiro Santos Júlio César braga de Souza Thiago Macêdo Lopes Correia Luana Weber Lopes Nayara Silva de Macêdo Neres Rafael Santos Dantas Miranda Dórea Anna Carolina Saúde Dantas Lorena Lôbo brito Morbeck Iasmin Souza Lima Amanda Alves de Almeida Maiara Raulina de Jesus Dias fabrício freire de Melo Campus Vitória da Conquista Universidade Estadual do Sudoeste da BahiaVitória da Conquista 45083-900BahiaBrazil Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil

Cancer is the second leading cause of death worldwide and epidemiological projections predict growing cancer mortality rates in the next *** has a close relationship with the immune system and,although Th17 cells are known to play roles in the immune response against microorganisms and in autoimmunity,studies have emphasized their roles in cancer *** Th17 immune response profile is involved in several types of cancer including urogenital,respiratory,gastrointestinal,and skin *** type of immune response exerts pro and antitumor functions through several mechanisms,depending on the context of each tumor,including the protumor angiogenesis and exhaustion of T cells and the antitumor recruitment of T cells and neutrophils to the tumor *** other factors,the paradoxical behavior of Th17 cells in this setting has been attributed to its plasticity potential,which makes possible their conversion into other types of T cells such as Th17/Treg and Th17/Th1 ***(IL)-17 stands out among Th17-related cytokines since it modulates pathways and interacts with other cell profiles in the tumor microenvironment,which allow Th17 cells to prevail in ***,the IL-17 is able to mediate pro and antitumor processes that influence the development and progression of various cancers,being associated with variable clinical *** understanding of the relationship between the Th17 immune response and cancer as well as the singularities of carcinogenic processes in each type of tumor is crucial for the identification of new therapeutic targets.

关键词： Cancer Immune response Th17 cells Interleukin-17 Tumor microenvironment Pathophysiology

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Immune response to Helicobacter pylori infection and gastric cancer development

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World Journal of Meta-Analysis 2021年第3期9卷 257-276页

作者： Breno Bittencourt de brito fabian fellipe Bueno Lemos Caroline da Mota Carneiro Andressa Santos Viana Nilo Manoel Pereira Vieira Barreto Gabriela Alves de Souza Assis Barbara Dicarlo Costa braga Maria Luísa Cordeiro Santos filipe Antônio frança da Silva Hanna Santos Marques Natália Oliveira e Silva fabrício freire de Melo Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil Campus Vitória da Conquista Universidade Estadual do Sudoeste da BahiaVitória da Conquista 45031900BahiaBrazil

Gastric adenocarcinoma is a global health concern,and Helicobacter pylori(***)infection is the main risk factor for its *** note,the immune response against the pathogen seems to be a determining factor for gastric oncogenesis,and increasing evidence have emphasized several host and bacterium factors that probably influence in this *** development of an inflammatory process against *** involves a wide range of mechanisms such as the activation of pattern recognition receptors and intracellular pathways resulting in the production of proinflammatory cytokines by gastric epithelial *** process culminates in the establishment of distinct immune response profiles that result from the cytokine-induced differentiation of T naïve cells into specific T helper *** released from each type of T helper cell orchestrate the immune system and interfere in the development of gastric cancer in idiosyncratic ***,variants in genes such as single nucleotide polymorphisms have been associated with variable predispositions for the occurrence of gastric malignancy because they influence both the intensity of gene expression and the affinity of the resultant molecule with its *** addition,various repercussions related to some *** virulence factors seem to substantially influence the host immune response against the infection,and many of them have been associated with gastric tumorigenesis.

关键词： Gastric cancer Helicobacter pylori Immune response Virulence factors Polymorphisms

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