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María D Flores, Luis M Gonzalez, Carolina Hurtado, Yamileth Monje Motta, Cristina Domínguez-Hidalgo, Francisco Jesús Merino, María J Perteguer, Teresa Gárate
BACKGROUND: Taenia solium, T. asiatica and T. saginata tapeworms cause human taeniasis and are the origin of porcine and bovine cysticercosis. Furthermore, T. solium eggs can cause human cysticercosis, with neurocysticercosis being the most serious form of the disease. These helminth infections are neglected tropical diseases and are endemic in several countries in the Americas, Asia and Africa. As a result of globalization, migration in particular, the infections have been extending to non-endemic territories...
February 27, 2018: Parasites & Vectors
N Masuda, M Toi, N Yamamoto, H Iwata, K Kuroi, H Bando, S Ohtani, T Takano, K Inoue, Y Yanagita, H Kasai, S Morita, T Sakurai, S Ohno
BACKGROUND: Dual blockade of HER2 promises increased pathological complete response (pCR) rate compared with single blockade in the presence of chemotherapy for HER2-positive (+) primary breast cancer. Many questions remain regarding optimal duration of treatment and combination impact of endocrine therapy for luminal HER2 disease. METHODS: We designed a randomised phase II, five-arm study to evaluate the efficacy and safety of lapatinib and trastuzumab (6 weeks) followed by lapatinib and trastuzumab plus weekly paclitaxel (12 weeks) with/without prolongation of anti-HER2 therapy prior to chemotherapy (18 vs...
February 14, 2018: Breast Cancer: the Journal of the Japanese Breast Cancer Society
Patrícia G Paulino, Marcus S Pires, Claudia B da Silva, Maristela Peckle, Renata L da Costa, Gabriela L V Vitari, Ana Paula M de Abreu, Nádia R P Almosny, Carlos L Massard, Huarrisson A Santos
A total of 300 blood samples of domiciliated dogs in rural and urban areas of southeast Rio de Janeiro State, Brazil, were used to compare the 18S ribosomal DNA region (18S rDNA) and the heat shock protein 70 kDa (hsp70) gene for molecular detection of Babesia vogeli and to perform a phylogenetic study comparing the two genes for B. vogeli classification. Using conventional polymerase chain reaction (cPCR) of 18S rDNA and hsp70 sequences, we were able to detect B. vogeli with the same sensitivity (96.15%) and specificity (99...
February 1, 2018: Ticks and Tick-borne Diseases
Santiago Panesso-Gómez, Paula Pavia, Iván Enrique Rodríguez-Mantilla, Paola Lasso, Luis A Orozco, Adriana Cuellar, Concepción J Puerta, Belén Mendoza de Molano, John M González
Achalasia is a motility disorder of the esophagus that might be secondary to a chronic Trypanosoma cruzi infection. Several studies have investigated esophageal achalasia in patients with Chagas disease (CD) in Latin America, but no related studies have been performed in Colombia. The goals of the present study were to determine the presence of anti-T. cruzi antibodies in patients with esophageal achalasia who visited a referral hospital in Bogotá, Colombia, and to detect the presence of the parasite and its discrete typing units (DTUs)...
February 5, 2018: American Journal of Tropical Medicine and Hygiene
A Müller, G Monti, C Otth, P Sepúlveda, P Bittencourt, Y Nachum-Biala, R Gutiérrez, S Harrus
This study aimed to screen wild rodents from southern Chile, for the presence of Anaplasmatacea. Spleen samples from 33 wild rodents trapped in Valdivia Province were screened by conventional PCR (cPCR), targeting the Anaplasmataceae 16S rRNA gene (16S). Positive samples were further evaluated, targeting a larger 16S fragment, groEL operon, and gltA gene, followed by sequencing and phylogenetic analysis. Anaplasmataceae DNA was detected in 15% (five of 33) of the tested rodents (Abrothrix sp. [four of five] and Mus musculus [one of five])...
January 24, 2018: Transboundary and Emerging Diseases
Thaís Tâmara Castro Minuzzi-Souza, Nadjar Nitz, César Augusto Cuba Cuba, Luciana Hagström, Mariana Machado Hecht, Camila Santana, Marcelle Ribeiro, Tamires Emanuele Vital, Marcelo Santalucia, Monique Knox, Marcos Takashi Obara, Fernando Abad-Franch, Rodrigo Gurgel-Gonçalves
Vector-borne pathogens threaten human health worldwide. Despite their critical role in disease prevention, routine surveillance systems often rely on low-complexity pathogen detection tests of uncertain accuracy. In Chagas disease surveillance, optical microscopy (OM) is routinely used for detecting Trypanosoma cruzi in its vectors. Here, we use replicate T. cruzi detection data and hierarchical site-occupancy models to assess the reliability of OM-based T. cruzi surveillance while explicitly accounting for false-negative and false-positive results...
January 9, 2018: Scientific Reports
Keyla Carstens Marques de Sousa, Renan Bressianini do Amaral, Heitor Miraglia Herrera, Filipe Martins Santos, Gabriel Carvalho Macedo, Pedro Cordeiro Estrela de Andrade Pinto, Darci Moraes Barros-Battesti, Rosangela Zacarias Machado, Marcos Rogério André
The present work aimed to investigate the genetic diversity of Bartonella in mammals and ectoparasites in Pantanal wetland, Brazil. For this purpose, 31 Nasua nasua, 78 Cerdocyon thous, 7 Leopardus pardalis, 110 wild rodents, 30 marsupials, and 42 dogs were sampled. DNA samples were submitted to a quantitative real-time PCR assay (qPCR). Positive samples in qPCR were submitted to conventional PCR assays targeting other five protein-coding genes. Thirty-five wild rodents and three Polygenis (P.) bohlsi bohlsi flea pools showed positive results in qPCR for Bartonella spp...
January 8, 2018: Microbial Ecology
Pius S Ekong, Michael W Sanderson, Nora M Bello, Lance W Noll, Natalia Cernicchiaro, David G Renter, Jianfa Bai, T G Nagaraja
Cattle are a reservoir for Escherichia coli O157 and they shed the pathogen in their feces. Fecal contaminants on the hides can be transferred onto carcasses during processing at slaughter plants, thereby serving as a source of foodborne infection in humans. The detection of E. coli O157 in cattle feces is based on culture, immunological, and molecular methods We evaluated the diagnostic sensitivity and specificity of one culture- and two PCR-based tests for the detection of E. coli O157 in cattle feces, and its true prevalence using a Bayesian implementation of latent class models...
December 1, 2017: Preventive Veterinary Medicine
Guanghui He, Yanping Liang, Jianjun Jing, Xiaofeng Li, Xin Jin, Yicheng Yang, Shibin Lyu, Jiaojiao Lu
Cardiac arrest (CA) is the most serious clinical emergency situation and cardiopulmonary-cerebral resuscitation (CPCR) performed on site with high quality is the optional therapy for its management. It has been reported that prolonging the resuscitation time after 30-minute failed conventional cardiopulmonary resuscitation (CPR) could improve the in-hospital survival rate of CA patients, and how to improve the out-hospital survival rate and survival quality of these patients is a research hot focus at present...
November 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
Karin Werther, Mayara de Cássia Luzzi, Luiz Ricardo Gonçalves, Juliana Paula de Oliveira, José Roberto Ferreira Alves Junior, Rosangela Zacarias Machado, Marcos Rogério André
Although Orinoco goose (Neochen jubata) is an anatid species widely distributed in South America, scarce are the reports on the occurrence of arthropod-borne pathogens in this avian species. The present work aimed to verify, by serological and molecular methods, the occurrence of haemosporida piroplasmids and Anaplasmataceae agents in wild Orinoco geese captured in Brazil. Between 2010 and 2014, 62 blood samples were collected from free-living geese captured in the Araguaia River, Goiás State, Brazil. Six geese (10%) were seropositive for Anaplasma phagocytophilum, showing titers ranging from 40 and 80...
December 2017: Comparative Immunology, Microbiology and Infectious Diseases
Keyla Carstens Marques de Sousa, Heitor Miraglia Herrera, Fabiana Lopes Rocha, Francisco Borges Costa, Thiago Fernandes Martins, Marcelo Bahia Labruna, Rosangela Zacarias Machado, Marcos Rogério André
The genus Rickettsia comprises obligatory intracellular bacteria, well known to cause zoonotic diseases around the world. The present work aimed to investigate the occurrence of Rickettsia spp. in wild animals, domestic dogs and their respective ectoparasites in southern Pantanal region, central-western Brazil, by molecular and serological techniques. Between August 2013 and March 2015, serum, whole blood and/or spleen samples were collected from 31 coatis, 78 crab-eating foxes, seven ocelots, 42 dogs, 110 wild rodents, and 30 marsupials...
October 27, 2017: Ticks and Tick-borne Diseases
Xin Dong, Huanzhang Shao, Yanan Yang, Lijie Qin, Zhisong Guo, Huifeng Zhang, Xueyan Zhang, Bingyu Qin
OBJECTIVE: To explore the characteristic of early evaluation of patients with amplitude-integrated electroencephalogram (aEEG) on brain function prognosis after cardiopulmonary cerebral resuscitation (CPCR). METHODS: A retrospective analysis of the clinical data of patients with adult CPCR in intensive care unit (ICU) of Henan Provincial People's Hospital from March 2016 to March 2017 was performed. The length of stay, recovery time, acute physiology and chronic health evaluation II (APACHE II) score, aEEG and Glasgow coma scale (GCS) within 72 hours were recorded...
October 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
Fang Huang, Shannon Takala-Harrison, Hui Liu, Jian-Wei Xu, Heng-Lin Yang, Matthew Adams, Biraj Shrestha, Gillian Mbambo, Demian Rybock, Shui-Sen Zhou, Zhi-Gui Xia, Xiao-Nong Zhou, Christopher V Plowe, Myaing M Nyunt
Malaria infections may be symptomatic, leading to treatment, or "asymptomatic," typically detected through active surveillance, and not leading to treatment. Malaria elimination may require purging both types of infection. Using detection methods with different sensitivities, we conducted a cross-sectional study in two rural communities located along the border between China's Yunnan Province and Myanmar's Shan and Kachin States, to estimate the prevalence of asymptomatic and symptomatic malaria. In Mong Pawk, all infections detected were asymptomatic, and the prevalence of Plasmodium falciparum was 0...
November 2017: American Journal of Tropical Medicine and Hygiene
Maria do Socorro Costa de Oliveira Braga, Francisca Neide Costa, Débora Regina Maia Gomes, Daniele Rosa Xavier, Marcos Rogério André, Luiz Ricardo Gonçalves, Carla Roberta Freschi, Rosangela Zacarias Machado
Equine piroplasmosisis, a tick-borne disease caused by the intra-erythrocytic protozoans Babesia caballi and Theileria equi, has economic importance due to the international trade and the increased movement of horses all over the world. The goal of this study was to evaluate the occurrence of phylogenetic diversity of T. equi and B. caballi genotypes among infected equids from São Luís Island, state of Maranhão, northeastern Brazil. Between December of 2011 and June of 2012, EDTA-blood and serum samples were collected from 139 equids (90 donkeys, 39 horses and 10 mules)...
July 2017: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
Lilian Muniz Camilo, Vera Lucia Pereira-Chioccola, Ricardo Gava, Cristina da Silva Meira-Strejevitch, Jose Ernesto Vidal, Cinara Cássia Brandão de Mattos, Fábio Batista Frederico, Luiz Carlos De Mattos, Lígia Cosentino Junqueira Franco Spegiorin
Symptomatic forms of toxoplasmosis are a serious public health problem and occur in around 10-20% of the infected people. Aiming to improve the molecular diagnosis of symptomatic toxoplasmosis in Brazilian patients, this study evaluated the performance of real time PCR testing two primer sets (B1 and REP-529) in detecting Toxoplasma gondii DNA. The methodology was assayed in 807 clinical samples with known clinical diagnosis, ELISA, and conventional PCR results in a 9-year period. All samples were from patients with clinical suspicion of several features of toxoplasmosis...
September 29, 2017: Brazilian Journal of Infectious Diseases
Jennifer Hawley, Tal Yaaran, Sarah Maurice, Michael R Lappin
We compared a qualitative in-clinic (IC)-PCR for the detection of Mycoplasma haemofelis DNA with the results of a commercial qualitative laboratory-based, conventional (c)PCR. In order to determine the specificity of both tests, Bartonella spp. samples were included. Forty-three previously tested blood samples with known PCR results for hemoplasmas and Bartonella spp. were selected. The samples were split between 2 laboratories. At the first laboratory, DNA was purified and run on 2 cPCR assays for the detection of hemoplasmas and Bartonella spp...
September 1, 2017: Journal of Veterinary Diagnostic Investigation
Fernando Henrique Antunes Murata, Marina Neves Ferreira, Vera Lucia Pereira-Chioccola, Lígia Cosentino Junqueira Franco Spegiorin, Cristina da Silva Meira-Strejevitch, Ricardo Gava, Aparecida Perpétuo Silveira-Carvalho, Luiz Carlos de Mattos, Cinara Cássia Brandão de Mattos
Toxoplasmosis during pregnancy can have severe consequences. The use of sensitive and specific serological and molecular methods is extremely important for the correct diagnosis of the disease. We compared the ELISA and ELFA serological methods, conventional PCR (cPCR), Nested PCR and quantitative PCR (qPCR) in the diagnosis of Toxoplasma gondii infection in pregnant women without clinical suspicion of toxoplasmosis (G1=94) and with clinical suspicion of toxoplasmosis (G2=53). The results were compared using the Kappa index, and the sensitivity, specificity, positive predictive value and negative predictive value were calculated...
June 17, 2017: Diagnostic Microbiology and Infectious Disease
P Ikeda, M C Seki, A O T Carrasco, L V Rudiak, J M D Miranda, S M M Gonçalves, E G L Hoppe, A C A Albuquerque, M M G Teixeira, C E Passos, K Werther, R Z Machado, M R André
The order Chiroptera is considered the second largest group of mammals in the world, hosting important zoonotic virus and bacteria. Bartonella and hemotropic mycoplasmas are bacteria that parasite different mammals' species, including humans, causing different clinical manifestations. The present work aimed investigating the occurrence and assessing the phylogenetic positioning of Bartonella spp. and Mycoplasma spp. in neotropical bats sampled from Brazil. Between December 2015 and April 2016, 325 blood and/or tissues samples were collected from 162 bats comprising 19 different species sampled in five states of Brazil...
July 2017: Epidemiology and Infection
Mayra Araguaia Pereira Figueiredo, Silvia Maria Di Santi, Wilson Gómez Manrique, Luiz Ricardo Gonçalves, Marcos Rogério André, Rosangela Zacarias Machado
BACKGROUND: Considering the diversity of feeding habits that females of some species of anophelines present, it is important to understand which vertebrates are part of blood food sources and how important is the role of each in the ecoepidemiology of malaria. There are many vector species for Plasmodium spp. in the State of Maranhão, Brazil. In São Luís Island, Anopheles aquasalis is the main vector for human malaria; this species is abundant in areas with primates that are positive for Plasmodium...
April 26, 2017: Parasites & Vectors
Sneha Sudhakara, Anju Chadha
Candida parapsilosis ATCC 7330, a rich source of highly stereospecific oxidoreductases, catalyzes oxidation-reduction of a plethora of compounds yielding industrially important intermediates. An (S)-specific carbonyl reductase (SRED) purified and characterized from this yeast is reported here. (R)-Specific carbonyl reductase (CpCR) was reported by us earlier. SRED asymmetrically reduces ketones with excellent enantiospecificity (ee > 99%) and α-ketoesters with higher catalytic activity but moderate enantiospecificity (ee 70%) in the presence of NADPH...
May 16, 2017: Organic & Biomolecular Chemistry
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