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https://www.readbyqxmd.com/read/29475160/immunotoxicity-of-ochratoxin-a-and-aflatoxin-b1-in-combination-is-associated-with-the-nuclear-factor-kappa-b-signaling-pathway-in-3d4-21-cells
#1
Lili Hou, Fang Gan, Xuan Zhou, Yajiao Zhou, Gang Qian, Zixuan Liu, Kehe Huang
The co-contamination of cereals, grains, crops, and animal feeds by mycotoxins is a universal problem. Humans and animals are exposed to several mycotoxins simultaneously as evidenced by extensive studies on this topic. Yet, most studies have addressed the effects of mycotoxins individually. Aflatoxin B1 and ochratoxin A can induce immunotoxicity. However, it remains unclear whether a combination of these mycotoxins aggravates immunotoxicity and the potential mechanism underlying this effect. In this study, we used the cell line 3D4/21, swine alveolus macrophages and innate immune cell...
February 3, 2018: Chemosphere
https://www.readbyqxmd.com/read/29475067/transcriptional-profiling-of-male-cd-1-mouse-lungs-and-harderian-glands-supports-the-involvement-of-calcium-signaling-in-acrylamide-induced-tumors
#2
Nikolai L Chepelev, Rémi Gagné, Timothy Maynor, Byron Kuo, Cheryl A Hobbs, Leslie Recio, Carole L Yauk
Acrylamide (AA) exposure causes increased incidence of forestomach, lung, and Harderian gland tumors in male mice. One hypothesized mode of action (MOA) for AA-carcinogenicity includes genotoxicity/mutagenicity as a key event, possibly resulting from AA metabolism to the direct genotoxic metabolite glycidamide. Alternatively, altered calcium signaling (CS) has been proposed as a central key event in the MOA. To examine the plausibility of these proposed MOAs, RNA-sequencing was performed on tumor target tissues: Harderian glands (the most sensitive tumor target tissue in the rodent 2-year cancer bioassay) and lungs of AA-exposed male CD-1 mice...
February 20, 2018: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29475039/genes-and-micrornas-associated-with-mouse-cleft-palate-a-systematic-review-and-bioinformatics-analysis
#3
Akiko Suzuki, Nada Abdallah, Mona Gajera, Goo Jun, Peilin Jia, Zhongming Zhao, Junichi Iwata
Cleft palate (CP) is the most prevalent craniofacial deformity, with ethnic and geographic variation in prevalence in humans. Mice have been used as an animal model to study the cause(s) of CP by several approaches, including genetic and chemical-induced approaches. Mouse genetic approaches revealed that significant amounts of genes are involved in the CP pathology. The aim of this study was to identify common features of CP-associated genes and to explore the roles of microRNAs (miRNAs) as important post-transcriptional regulators that may be involved in the regulation of CP genes...
February 20, 2018: Mechanisms of Development
https://www.readbyqxmd.com/read/29474956/the-clock-gene-period-differentially-regulates-sleep-and-memory-in-drosophila
#4
Robin Fropf, Hong Zhou, Jerry C P Yin
Circadian regulation is a conserved phenomenon across the animal kingdom, and its disruption can have severe behavioral and physiological consequences. Core circadian clock proteins are likewise well conserved from Drosophila to humans. While the molecular clock interactions that regulate circadian rhythms have been extensively described, additional roles for clock genes during complex behaviors are less understood. Here, we show that mutations in the clock gene period result in differential time-of-day effects on acquisition and long-term memory of aversive olfactory conditioning...
February 20, 2018: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29474740/differences-in-nonclinical-pharmacokinetics-between-species-and-prediction-of-human-pharmacokinetics-of-tak-272-sco-272-a-novel-orally-active-renin-inhibitor
#5
Takuya Ebihara, Mitsuhiro Nishihara, Junzo Takahashi, Fumihiro Jinno, Yoshihiko Tagawa
In the search for orally available drugs, the prediction of human pharmacokinetics (PK) is essential to successfully select compounds that will be clinically useful. This report describes the selection of TAK-272 (SCO-272), a novel orally active renin inhibitor, as a clinical candidate via the detailed investigation of nonclinical PK data and human PK prediction. The bioavailability (BA) of TAK-272 after oral administration to rats and monkeys was low, especially in fasted monkeys, and the systemic exposure of TAK-272 was highly variable in monkeys...
February 23, 2018: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/29474550/developmental-plasticity-and-its-relevance-to-assisted-human-reproduction
#6
Tessa J Roseboom
The advent of assisted reproduction has allowed the conception of millions of individuals who otherwise would not have existed. Although most ART children are born healthy, there is increasing awareness of the plasticity of the human embryo causing concerns about potential long-term consequences of ART for the growth, development and health of this growing population of individuals. Evidence from studies in animals and humans suggest that physiology and metabolism may be permanently affected by ART. It suggests that ART children may be at increased risk of later cardiometabolic diseases...
February 21, 2018: Human Reproduction
https://www.readbyqxmd.com/read/29474416/primate-social-attention-species-differences-and-effects-of-individual-experience-in-humans-great-apes-and-macaques
#7
Fumihiro Kano, Stephen V Shepherd, Satoshi Hirata, Josep Call
When viewing social scenes, humans and nonhuman primates focus on particular features, such as the models' eyes, mouth, and action targets. Previous studies reported that such viewing patterns vary significantly across individuals in humans, and also across closely-related primate species. However, the nature of these individual and species differences remains unclear, particularly among nonhuman primates. In large samples of human and nonhuman primates, we examined species differences and the effects of experience on patterns of gaze toward social movies...
2018: PloS One
https://www.readbyqxmd.com/read/29474375/dominance-of-p-glycoprotein-12-in-phenotypic-resistance-conversion-against-ivermectin-in-caenorhabditis-elegans
#8
Luiza Almeida Figueiredo, Thais Fuscaldi Rebouças, Sebastião Rodrigo Ferreira, Gabriela Flavia Rodrigues-Luiz, Rodrigo Cambraia Miranda, Ricardo Nascimento Araujo, Ricardo Toshio Fujiwara
While diseases caused by nematodes remains a considerable drawback for the livestock, agriculture and public health, anthelmintics drug resistance has been observed over the past years and is a major concern for parasite control. Ivermectin, initially considered as a highly potent drug, currently presents a reduced anti-helminthic efficacy, which is influenced by expression of several ATP-binding cassette transporters (ABC), among them the P-glycoproteins (Pgps). Here we present some evidences of Pgps dominance during Ivermectin resistance/susceptibility using Pgps double silencing in C...
2018: PloS One
https://www.readbyqxmd.com/read/29474122/non-animal-methods-to-predict-skin-sensitization-ii-an-assessment-of-defined-approaches
#9
Nicole C Kleinstreuer, Sebastian Hoffmann, Nathalie Alépée, David Allen, Takao Ashikaga, Warren Casey, Elodie Clouet, Magalie Cluzel, Bertrand Desprez, Nichola Gellatly, Carsten Göbel, Petra S Kern, Martina Klaric, Jochen Kühnl, Silvia Martinozzi-Teissier, Karsten Mewes, Masaaki Miyazawa, Judy Strickland, Erwin van Vliet, Qingda Zang, Dirk Petersohn
Skin sensitization is a toxicity endpoint of widespread concern, for which the mechanistic understanding and concurrent necessity for non-animal testing approaches have evolved to a critical juncture, with many available options for predicting sensitization without using animals. Cosmetics Europe and the National Toxicology Program Interagency Center for the Evaluation of Alternative Toxicological Methods collaborated to analyze the performance of multiple non-animal data integration approaches for the skin sensitization safety assessment of cosmetics ingredients...
February 23, 2018: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/29473646/research-review-intergenerational-transmission-of-disadvantage-epigenetics-and-parents-childhoods-as-the-first-exposure
#10
Pamela Scorza, Cristiane S Duarte, Alison E Hipwell, Jonathan Posner, Ana Ortin, Glorisa Canino, Catherine Monk
BACKGROUND: For decades, economists and sociologists have documented intergenerational transmission of socioeconomic disadvantage, demonstrating that economic, political, and social factors contribute to 'inherited hardship'. Drawing on biological factors, the developmental origins of adult health and disease model posits that fetal exposure to maternal prenatal distress associated with socioeconomic disadvantage compromises offspring's neurodevelopment, affecting short- and long-term physical and mental health, and thereby psychosocial standing and resources...
February 23, 2018: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/29473532/the-promising-pharmacological-effects-and-therapeutic-medicinal-applications-of-punica-granatum-l-pomegranate-as-a-functional-food-in-humans-and-animals
#11
Kuldeep Dhama
BACKGROUND: Punica granatum L (pomegranate), is a shrub mostly available in the Mediterranean Sea region. The fruits have gained the substantial attention among researchers due to its promising biological activities including anti-inflammatory, antibacterial, antidiarrheal, immune modulatory, antitumor, wound healing and antifungal that have been attributed to various constituents of seeds, bark, juice, pericarp and leaf of this tree across the globe. The phenolic compounds of pomegranate have been documented to possess numbers of prophylactic and therapeutic utilities against various pathological infections as well as non-infectious disorders...
February 21, 2018: Recent Patents on Inflammation & Allergy Drug Discovery
https://www.readbyqxmd.com/read/29473510/synthesis-and-antifungal-activity-of-coumarins-derivatives-against-sporothrix-spp
#12
Luana S M Forezi, Luana P Borba-Santos, Mariana F C Cardoso, Vitor F Ferreira, Sonia Rozental, Fernando De Carvalho Da Silva
Sporotrichosis is a serious public health problem in Brazil that affects human patients and domestic animals, mainly cats. Thus, the search for new antifungal agents is required also due to the emergence and to the lack of effective drugs available in the therapeutic arsenal. The aim of this study was to evaluate the in vitro antifungal profile of two synthetic series of coumarin derivatives against Sporothrix schenckii and Sporothrix brasiliensis. The three-components synthetic routes used for the preparation of coumarin derivatives have proved to be quite efficient and compounds 16 and 17 have been prepared in good yields...
February 20, 2018: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/29473285/angiogenic-factors-in-preeclampsia-implications-for-clinical-practice
#13
S Ananth Karumanchi
More than a decade ago, circulating anti-angiogenic factors of placental origin were implicated in the pathogenesis of preeclampsia (Karumanchi SA. Hypertension. 2016 Jun;67(6):1072-9). In particular, circulating soluble fms-like tyrosine kinase 1 (sFlt-1), an anti-angiogenic factor that inhibits vascular endothelial growth factor (VEGF) signaling has been extensively studied in humans and in animal models of preeclampsia. Epidemiological, experimental and genetic studies point to a causal role for sFlt1 in the etiology of the disease...
February 23, 2018: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/29473169/animal-models-of-wilson-disease
#14
REVIEW
Emily Reed, Svetlana Lutsenko, Oliver Bandmann
Wilson disease (WD) is an autosomal recessive disorder of copper metabolism manifesting with hepatic, neurological and psychiatric symptoms. The limitations of the currently available therapy for WD (particularly in the management of neuropsychiatric disease), together with our limited understanding of key aspects of this illness (e.g. neurological vs hepatic presentation) justify the ongoing need to study WD in suitable animal models. Four animal models of WD have been established: the Long-Evans Cinnamon rat, the toxic-milk mouse, the Atp7b knockout mouse and the Labrador retriever...
February 23, 2018: Journal of Neurochemistry
https://www.readbyqxmd.com/read/29472903/bile-salt-hydrolase-activities-a-novel-target-to-screen-anti-giardia-lactobacilli
#15
Thibault Allain, Soraya Chaouch, Myriam Thomas, Marie-Agnès Travers, Isabelle Valle, Philippe Langella, Philippe Grellier, Bruno Polack, Isabelle Florent, Luis G Bermúdez-Humarán
Giardia duodenalis is a protozoan parasite responsible for giardiasis, a disease characterized by intestinal malabsorption, diarrhea and abdominal pain in a large number of mammal species. Giardiasis is one of the most common intestinal parasitic diseases in the world and thus a high veterinary, and public health concern. It is well-established that some probiotic bacteria may confer protection against this parasite in vitro and in vivo and we recently documented the implication of bile-salt hydrolase (BSH)-like activities from strain La1 of Lactobacillus johnsonii as mediators of these effects in vitro ...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29472786/exploration-and-local-utilization-of-medicinal-vegetation-naturally-grown-in-the-deusai-plateau-of-gilgit-pakistan
#16
Kifayat Ullah Khan, Maqarab Shah, Habib Ahmad, Shujaul Mulk Khan, Inayat Ur Rahman, Zafar Iqbal, Raees Khan, Elsayed Fathi Abd Allah, Abdulaziz Abdullah Alqarawi, Abeer Hashem, Abdullah Aldubise
In the study area, the traditional knowledge regarding the uses of local wild medicinal plants for the health care of human and domestic animals is totally in hold of old people. The young ones are unaware about such an indispensable practices. The objective of the current study was to transfer this sort of precious knowledge from old members of the community to young generations in documented form.
February 2018: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/29472449/nrf2-activation-attenuates-genetic-endoplasmic-reticulum-stress-induced-by-a-mutation-in-the-phosphomannomutase-2-gene-in-zebrafish
#17
Katsuki Mukaigasa, Tadayuki Tsujita, Vu Thanh Nguyen, Li Li, Hirokazu Yagi, Yuji Fuse, Yaeko Nakajima-Takagi, Koichi Kato, Masayuki Yamamoto, Makoto Kobayashi
Nrf2 plays critical roles in animals' defense against electrophiles and oxidative stress by orchestrating the induction of cytoprotective genes. We previously isolated the zebrafish mutant it768 , which displays up-regulated expression of Nrf2 target genes in an uninduced state. In this paper, we determine that the gene responsible for it768 was the zebrafish homolog of phosphomannomutase 2 (Pmm2), which is a key enzyme in the initial steps of N-glycosylation, and its mutation in humans leads to PMM2-CDG (congenital disorders of glycosylation), the most frequent type of CDG...
February 22, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29472062/computational-modeling-of-the-human-auditory-periphery-auditory-nerve-responses-evoked-potentials-and-hearing-loss
#18
REVIEW
Sarah Verhulst, Alessandro Altoè, Viacheslav Vasilkov
Models of the human auditory periphery range from very basic functional descriptions of auditory filtering to detailed computational models of cochlear mechanics, inner-hair cell (IHC), auditory-nerve (AN) and brainstem signal processing. It is challenging to include detailed physiological descriptions of cellular components into human auditory models because single-cell data stems from invasive animal recordings while human reference data only exists in the form of population responses (e.g., otoacoustic emissions, auditory evoked potentials)...
December 28, 2017: Hearing Research
https://www.readbyqxmd.com/read/29471848/canine-caliciviruses-of-four-serotypes-from-military-and-research-dogs-recovered-in-1963-1978-belong-to-two-phylogenetic-clades-in-the-vesivirus-genus
#19
Leonard N Binn, Erica A Norby, Ruth H Marchwicki, Richard G Jarman, Paul B Keiser, Jun Hang
BACKGROUND: Vesiviruses (family Caliciviridae) had been shown capable of invading a variety of host species, raising concern of their zoonotic potential. Since the 1980's, several canine caliciviruses (CaCV) isolates have been reported and are phylogenetically related to the vesiviruses with features distinct from both Vesicular exanthema of swine virus (VESV) and Feline calicivirus (FCV) species in phylogeny, serology and cell culture specificities. Etiological studies of canine diseases in dogs used for military services and laboratory studies were conducted in 1963-1978 at the Walter Reed Army Institute of Research...
February 23, 2018: Virology Journal
https://www.readbyqxmd.com/read/29471844/spatiotemporal-patterns-and-environmental-drivers-of-human-echinococcoses-over-a-twenty-year-period-in-ningxia-hui-autonomous-region-china
#20
Angela M Cadavid Restrepo, Yu Rong Yang, Donald P McManus, Darren J Gray, Tamsin S Barnes, Gail M Williams, Ricardo J Soares Magalhães, Nicholas A S Hamm, Archie C A Clements
BACKGROUND: Human cystic (CE) and alveolar (AE) echinococcoses are zoonotic parasitic diseases that can be influenced by environmental variability and change through effects on the parasites, animal intermediate and definitive hosts, and human populations. We aimed to assess and quantify the spatiotemporal patterns of human echinococcoses in Ningxia Hui Autonomous Region (NHAR), China between January 1994 and December 2013, and examine associations between these infections and indicators of environmental variability and change, including large-scale landscape regeneration undertaken by the Chinese authorities...
February 22, 2018: Parasites & Vectors
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