Read by QxMD icon Read


Ana C L Camargo, Sérgio A A Dos Santos, Jaqueline C Rinaldi, Flavia B Constantino, Ketlin T Colombelli, Wellerson R Scarano, Sérgio L Felisbino, Luis A Justulin
Gestational diabetes mellitus (GDM) has increased in recent years. Although the cellular and molecular mechanisms involved in GDM-increased risk factors to offspring remained poorly understood, some studies suggested an association between an increase in oxidative stress induced by maternal hyperglycemia and complications for both mothers and newborns. Here, we investigated the impact of maternal hyperglycemia followed by maternal insulin replacement during lactation on the expression of antioxidant enzymes and mast cell number in offspring ventral prostate (VP) at puberty...
October 27, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
Gabriela Debom, Marta Gazal, Mayara Sandrielly Pereira Soares, Carlus Augustu Tavares do Couto, Bruna Mattos, Claiton Lencina, Manuella Pinto Kaster, Gabriele Codenonzi Ghisleni, Rejane Tavares, Elizandra Braganhol, Vitor Clasen Chaves, Flávio Henrique Reginatto, Francieli Stefanello, Roselia Maria Spanevello
The aim of the present study was to evaluate the protective effects of blueberry extract on oxidative stress and inflammatory parameters in a model of mania induced by ketamine administration in rats. Male rats were pretreated with blueberry extract (200mg/kg, once a day for 14days), lithium chloride (45mg/kg, mood stabilizer used as a positive control, twice a day for 14days), or vehicle. Between the 8th and 14th days, rats also received an injection of ketamine (25mg/kg) or vehicle. In the 15th day, thirty minutes after ketamine administration the hyperlocomotion of the animals was assessed in the open - field apparatus...
October 18, 2016: Brain Research Bulletin
Michela Schiavon, Chiara Berto, Mario Malagoli, Annarita Trentin, Paolo Sambo, Stefano Dall'Acqua, Elizabeth A H Pilon-Smits
Two selenium (Se) fertilization methods were tested for their effects on levels of anticarcinogenic selenocompounds in radish (Raphanus sativus), as well as other nutraceuticals. First, radish was grown on soil and foliar selenate applied 7 days before harvest at 0, 5, 10, and 20 mg Se per plant. Selenium levels were up to 1200 mg Se/kg DW in leaves and 120 mg Se/kg DW in roots. The thiols cysteine and glutathione were present at 2-3-fold higher levels in roots of Se treated plants, and total glucosinolate levels were 35% higher, due to increases in glucoraphanin...
2016: Frontiers in Plant Science
Marina Lidwine Olé Sangba, Tanguy Deketramete, Solange Patricia Wango, Mirdad Kazanji, Martin Akogbeto, Mamadou Ousmane Ndiath
BACKGROUND: In the Central African Republic, malaria is a major public health problem and the leading cause of death among children. This disease appears to be hyperendemic but no substantial entomological data, including data on Anopheles spp. susceptibility to insecticides, is available. This study evaluates, for the first time in the CAR, the status of insecticide resistance in the Anopheles funestus population, the second major vector of malaria in Africa. METHODS: WHO standard bioassay susceptibility tests were performed on the An...
April 25, 2016: Parasites & Vectors
Csilla Pelyhe, Benjámin Kövesi, Erika Zándoki, Balázs Kovács, Judit Szabó-Fodor, Miklós Mézes, Krisztián Balogh
The purpose of study was to investigate the effects of T-2 toxin (4.11 mg T-2 toxin and 0.45 mg HT-2 toxin kg(-1) feed) and deoxynivalenol (5.96 and 0.33 mg 15-acetyl deoxynivalenol (DON) kg(-1) feed) in 1-year-old common carp juveniles in a 4-week feeding trial. The exposure of mycotoxins resulted in increased mortality in both groups consuming mycotoxin-contaminated diet. Parameters of lipid peroxidation were not affected during the trial, and antioxidant defence also did not show response to oxidative stress; however, glutatione peroxidase activity slightly, but significantly, decreased in the T-2 toxin group...
May 2016: Mycotoxin Research
Ana Paula Lausmann Ternes, Ana Paula Zemolin, Litiele Cezar da Cruz, Gustavo Felipe da Silva, Ana Paula Fleig Saidelles, Mariane Trindade de Paula, Caroline Wagner, Ronaldo Medeiros Golombieski, Érico Marlon de Moraes Flores, Rochele Sogari Picoloto, Antônio Batista Pereira, Jeferson Luis Franco, Thaís Posser
Embryonic animals are especially susceptible to metal exposure. Manganese (Mn) is an essential element, but in excess it can induce toxicity. In this study we used Drosophila melanogaster as an embryonic model to investigate biochemical and behavioral alterations due to Mn exposure. Flies were treated with standard medium supplemented with MnCl2 at 0.1 mM, 0.5 mM or 1 mM from the egg to the adult stage. At 0.5 mM and 1 mM Mn, newly ecloded flies showed significantly enhanced locomotor activity when assessed by negative geotaxis behavior...
2014: EXCLI journal
Mohammed Elmowafy, Ahmed Samy, Mohamed A Raslan, Ayman Salama, Ragab A Said, Abdelaziz E Abdelaziz, Wafaa El-Eraky, Sally El Awdan, Tapani Viitala
Thymoquinone (TQ), obtained from black cumin (Nigella sativa), is a natural product with anti-oxidant, anti-inflammatory, and hepatoprotective effects but unfortunately with poor bioavailability. Aiming to improve its poor oral bioavailability, TQ-loaded nanostructured lipid carriers (NLCs) were prepared by high-speed homogenization followed by ultrasonication and evaluated in vitro. Bioavailability and pharmacodynamic studies were also performed. The resultant NLCs showed poor physical homogeneity in Compritol 888 ATO Pluronic F127 system which consequently produced larger particle size and polydispersity index, smaller zeta potential values, and lower short-term (30 days) physical stability than other systems...
June 2016: AAPS PharmSciTech
Farooq Ahmad, Xiaoyi Liu, Ying Zhou, Hongzhou Yao
The broad spectrum applications of CoFe2O4 NPs have attracted much interest in medicine, environment and industry, resulting in exceedingly higher exposures to humans and environmental systems in succeeding days. Their health effects and potential biological impacts need to be determined for risk assessment. Zebrafish (Danio rerio) embryos were exposed to environmentally relevant doses of nano-CoFe2O4 (mean diameter of 40nm) with a concentration range of 10-500μM for 96h. Acute toxic end points were evaluated by survival rate, malformation, hatching delay, heart dysfunction and tail flexure of larvae...
September 2015: Aquatic Toxicology
Mariana Carneiro, Bruno Reis, Joana Azevedo, Alexandre Campos, Hugo Osório, Vítor Vasconcelos, José Carlos Martins
A multi-method approach was employed to compare the responses of Glutatione Transferases (GSTs) in the gills and hepatopancreas of Venerupis philippinarum to microcystins (MCs) toxicity. In this way, using the cytosolic fraction, the enzymatic activity of GSTs, superoxide dismutase (SOD), serine/threonine protein phosphatases (PPP2) along with the gene expression levels of four GST isoforms (pi, mu, sigma1, sigma2) were investigated in both organs of the clams exposed for 24 h to 10, 50 and 100 μg L(-1) of MC-LR...
June 9, 2015: Toxins
DanDan Huang, Lang Bao
BACKGROUND: Mycobacterium tuberculosis (Mtb) persists within immature phagosomes by preventing their maturation into phagolysosomes. Although the early secretory antigenic target 6 (ESAT-6) system 1 (ESX-1) secretion-associated protein B (EspB) of Mtb is strongly linked to immunogenicity and virulence of this organism, its mechanism of action remains largely unclear. This study aimed to investigate EspB effects on autophagy in murine ANA-1 macrophage cells. METHODS: EspB gene was amplified by polymerase chain reaction from Mtb H37Rv genomic DNA to express recombinant EspB protein...
December 2016: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
Masayo Adachi-Hayama, Akihiko Adachi, Natsuki Shinozaki, Tomoo Matsutani, Takaki Hiwasa, Masaki Takiguchi, Naokatsu Saeki, Yasuo Iwadate
BACKGROUND: Glioma is the most common primary malignant central nervous system tumor in adult, and is usually not curable due to its invasive nature. Establishment of serum biomarkers for glioma would be beneficial both for early diagnosis and adequate therapeutic intervention. Filamins are an actin cross-linker and filamin C (FLNC), normally restricted in muscle tissues, offers many signaling molecules an essential communication fields. Recently, filamins have been considered important for tumorigenesis in cancers...
2014: BMC Cancer
H Diesperger, H Sandermann
Epicotyl and primary leaves of pea seedlings (Pisum sativum L., var. Alaska) were found to contain soluble and microsomal enzymes catalyzing the addition of glutathione to the olefinic double bond of cinnamic acid. Glutathione S-cinnamoyl transfer was also obtained with enzyme preparations from potato slices and cell suspension cultures of parsley and soybean.The pea transferases had pH-optima between pH 7.4 and 7.8 Km-values were 0.1-0.4 mM and 1-4 mM for cinnamic acid and glutathione, respectively. V-values were between 2-15 nmol mg(-1) protein x min...
October 1979: Planta
Mercedes Martín-Rufián, Renata Nascimento-Gomes, Ana Higuero, Amanda R Crisma, José A Campos-Sandoval, María C Gómez-García, Carolina Cardona, Tzuling Cheng, Carolina Lobo, Juan A Segura, Francisco J Alonso, Monika Szeliga, Jan Albrecht, Rui Curi, Javier Márquez, Alison Colquhoun, Ralph J Deberardinis, José M Matés
UNLABELLED: Mitochondrial glutaminase (GA) plays an essential role in cancer cell metabolism, contributing to biosynthesis, bioenergetics, and redox balance. Humans contain several GA isozymes encoded by the GLS and GLS2 genes, but the specific roles of each in cancer metabolism are still unclear. In this study, glioma SFxL and LN229 cells with silenced isoenzyme glutaminase KGA (encoded by GLS) showed lower survival ratios and a reduced GSH-dependent antioxidant capacity. These GLS-silenced cells also demonstrated induction of apoptosis indicated by enhanced annexin V binding capacity and caspase 3 activity...
March 2014: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
Guangzhi Zhang, Richard Ducatelle, Frank Pasmans, Katharina D'Herde, Liping Huang, Annemieke Smet, Freddy Haesebrouck, Bram Flahou
Helicobacter (H.) suis colonizes the stomach of the majority of pigs as well as a minority of humans worldwide. Infection causes chronic inflammation in the stomach of the host, however without an effective clearance of the bacteria. Currently, no information is available about possible mechanisms H. suis utilizes to interfere with the host immune response. This study describes the effect on various lymphocytes of the γ-glutamyl transpeptidase (GGT) from H. suis. Compared to whole cell lysate from wild-type H...
2013: PloS One
Ewa Ignatowicz, Anna Woźniak, Maksymilian Kulza, Monika Seńczuk-Przybyłowska, Francesco Cimino, Wojciech Piekoszewski, Marek Chuchracki, Ewa Florek
BACKGROUND: Tobacco smoking and alcohol abuse causes oxidative stress in humans and underlay numerous chronic degenerative diseases. Liver is the main organ exposed to alcohol toxic metabolites, whereas tobacco smoke is chiefly harmful to the lungs. METHODS: The aim of the current study was the assessment and comparison of selected oxidative stress markers, reduced glutatione (GSH), glutathione S-transferase (GST), superoxide dismutase (SOD), catalase, nitrites and protein nitrosylation and DNA damage in the livers and in the lungs of alcohol-addicted rats exposed to tobacco smoke alone or in combination with a single dose of ethanol...
2013: Pharmacological Reports: PR
A A Artiukov, A M Popov, A V Tsybul'skiĭ, O N Krivoshapko, N V Poliakova
Pharmacological activity of echinochrome A (EchA) alone and in the biologically active additives (BAA) "Timarin", administered per os has been investigated on volunteers. EchA decreased serum glutatione (GSH) and increased catalase activity 1 h after treatment; catalase activity normalized, while GSH exceeded the initial level 3 h after the treatment. Changes in serum lipid spectrum, demonstrating reduction of the risk atherogenesis were determined.
May 2012: Biomedit︠s︡inskai︠a︡ Khimii︠a︡
Juliana Noguti, Luis Fernando Barbisan, Augusto Cesar, Camilo Dias Seabra, Rodrigo Brasil Choueri, Daniel Araki Ribeiro
The Glutatione-S-transferases (GSTs) comprise a family of enzymes closely associated with the cell detoxification of xenobiotics. GSTs exist as homo- or heterodimers and have been grouped into at least seven distinct classes. The main function of GSTs is to catalyze the conjugation of reduced glutathione (GSH) to an electrophilic site of a broad range of potentially toxic and carcinogenic compounds, thereby making such compounds less dangerous and enabling their ready-excretion. Placental GST, known as GST-P 7-7, is the main isoform found in normal placental tissue and comprises 67% of the total GST concentration in this tissue...
July 2012: In Vivo
Mariola Rychlik-Sych, Małgorzata Barańska, Jadwiga Skritkowicz
The etiology of dermatological diseases is still unknown. Involvement of genetic and environmental factors in the pathogenesis of dermatological diseases has contributed to a number of studies whose aim is to elucidate the way in which xenobiotics exert effects on the occurrence of these diseases. The search for genes responsible for dermatological diseases is taking into consideration polymorphism of genes of cytochrome P450 (CYP), NAT2 (N-acetylotransferase 2), GST (glutatione S-transferase).
2012: Przegla̧d Lekarski
Renato Polimanti, Sara Piacentini, Flavio De Angelis, Gian Franco De Stefano, Maria Fuciarelli
Over the last two decades, significant data has been accumulated linking Glutatione S-Transferases (GSTs) with the development of several diseases. Contemporary studies have demonstrated the impact of ethnicity on GST allele frequencies. The aim is to verify if the variability of GST genes reflects population demographic history or rather selective pressures. GST genes (GSTM1, GSTO1 GSTO2, GSTT1) were analysed in three Ecuadorian populations (Cayapas, n=114; Colorados, n=104; African-Ecuadorian, n=77) and compared with HapMap data...
2011: Disease Markers
Yiorgos Apidianakis, Yok-Ai Que, Weihong Xu, George P Tegos, Piotr Zimniak, Michael R Hamblin, Ronald G Tompkins, Wenzhong Xiao, Laurence G Rahme
Patients with severe burns are highly susceptible to bacterial infection. While immunosuppression facilitates infection, the contribution of soft tissues to infection beyond providing a portal for bacterial entry remains unclear. We showed previously that glutathione S-transferase S1 (gstS1), an enzyme with conjugating activity against the lipid peroxidation byproduct 4-hydroxynonenal (4HNE), is important for resistance against wound infection in Drosophila muscle. The importance of the mammalian functional counterpart of GstS1 in the context of wounds and infection has not been investigated...
February 2012: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"