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https://www.readbyqxmd.com/read/28646801/the-effects-of-exposure-to-low-frequency-electromagnetic-fields-on-male-fertility
#1
Mahsa Darbandi, Sara Darbandi, Ashok Agarwal, Ralf Henkle, Mohammad Reza Sadeghi
Context • People are increasingly exposed to low frequency (LF) electromagnetic fields (EMFs), mainly from electricity distribution networks and electronic devices. Critics of this widespread exposure believe that it can have detrimental effects on the human body. On the other hand, many in vivo and in vitro studies have claimed that low frequency electromagnetic therapy can function as a form of alternative medicine and that therapists can treat disease by applying electromagnetic radiation or pulsed EMFs to the body or cells...
June 23, 2017: Alternative Therapies in Health and Medicine
https://www.readbyqxmd.com/read/28646540/animal-embryotoxicity-studies-of-key-non-artemisinin-antimalarials-and-use-in-women-in-the-first-trimester
#2
REVIEW
Robert L Clark
The World Health Organization currently recommends quinine+clindamycin for use against malaria in the first trimester. This may soon change to recommending artemisinin-based combination therapies (standard duration of dosing = 3 days). The non-artemisinin partner drugs include amodiaquine, lumefantrine, mefloquine, piperaquine, sulfadoxine+pyrimethamine, and pyronaridine. For quinine, clindamycin, and mefloquine and the combinations of sulfadoxine+pyrimethamine and artemether+lumefantrine, there are reports (including studies without internal comparison groups) that combined describe 304 to >1100 exposures of women in the first trimester for each drug with no conclusive evidence of adverse effects on pregnancy at therapeutic doses...
June 24, 2017: Birth defects research
https://www.readbyqxmd.com/read/28646516/tofacitinib-restores-the-inhibition-of-reverse-cholesterol-transport-induced-by-inflammation-understanding-the-lipid-paradox-associated-with-rheumatoid-arthritis
#3
S Pérez-Baos, J I Barrasa, P Gratal, A Larrañaga-Vera, I Prieto-Potin, G Herrero-Beaumont, R Largo
BACKGROUND AND PURPOSE: Patients with active rheumatoid arthritis (RA) have increased cardiovascular mortality, paradoxically associated with reduced circulating lipid levels. The Janus kinase (Jak) inhibitor tofacitinib ameliorates systemic and joint inflammation in RA with a concomitant increase in serum lipids. We analyzed the effect of tofacitinib on the lipid profile of hyperlipidemic rabbits with chronic arthritis (CA) and on the regulation of reverse cholesterol transport (RCT) during chronic inflammation...
June 23, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28646230/il-1%C3%AE-increases-asporin-expression-via-the-nf-%C3%AE%C2%BAb-p65-pathway-in-nucleus-pulposus-cells-during-intervertebral-disc-degeneration
#4
Shengjie Wang, Chao Liu, Zhongyi Sun, Peng Yan, He Liang, Kai Huang, Changwei Li, Jiwei Tian
Disc degeneration (DD) is a multifaceted chronic process that alters the structure and function of intervertebral discs. The pathophysiology of degeneration is not completely understood, but the consensus is that changes in genes encoding extracellular matrix (ECM) proteins in the disc are the leading factors contributing to DD. Asporin is an ECM protein that has been shown to be increased in degenerated intervertebral discs, but little is known about how asporin is regulated during DD. In exploring the intricate mechanism, we confirmed that asporin was abundantly increased in patients' degenerated nucleus pulposus...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28645885/the-threshold-of-toxicological-concern-for-prenatal-developmental-toxicity-in-rats-and-rabbits
#5
B van Ravenzwaay, X Jiang, T Luechtefeld, T Hartung
The Threshold Toxicological Concern (TTC) is based on the concept that in absence of experimental data reasonable assurance of safety can be given if exposure is sufficiently low. Using the REACH database the low 5th percentile of the NO(A)EL distribution, for prenatal developmental toxicity (OECD guideline 414) was determined. For rats, (434 NO(A)ELs values) for maternal toxicity, this value was 10 mg/kg-bw/day. For developmental toxicity (469 NO(A)ELs): 13 mg/kg-bw/day. For rabbits, (100 NO(A)ELs), the value for maternal toxicity was 4 mg/kg-bw/day, for developmental toxicity, (112 NO(A)EL values): 10 mg/kg-bw/day...
June 20, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28644752/expression-and-purification-of-swine-rag2-in-e-coli-for-production-of-porcine-rag2-polyclonal-antibodies
#6
Yu-Bei Jin, Wen-Tao Yang, Ke-Yan Huang, Hong-Liang Chen, Seria-Masole Shonyela, Jing Liu, Qiong Liu, Bo Feng, You Zhou, Shu-Li Zhi, Yan-Long Jiang, Jian-Zhong Wang, Hai-Bin Huang, Chun-Wei Shi, Gui-Lian Yang, Chun-Feng Wang
Recombination activating gene 2 (RAG2) is necessary for immature B cell differentiation. Antibodies to human and rabbit RAG2 are currently commercially available, but antibodies to swine RAG remain unavailable to date. In this study, the swine RAG2 genes sequence was synthesized and then cloned into a pET-28a vector. The recombinant fusion protein was successfully expressed in E. coli, purified through nickel column chromatography, and further digested with Tobacco Etch Virus protease. The cleaved protein was purified by molecular-exclusion chromatography and named pRAG2...
June 23, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28644681/treatment-results-of-corneal-collagen-cross-linking-combined-with-riboflavin-and-440-nm-blue-light-for-bacterial-corneal-ulcer-in-rabbits
#7
Shufang Wei, Cuiying Zhang, Shaoru Zhang, Yanyun Xu, Guoying Mu
PURPOSE: To study the treatment effect of corneal collagen cross-linking (CXL) combined with 440 nm blue light and riboflavin on bacterial corneal ulcer using animal experiments. METHODS: A total of 21 New Zealand white rabbits that developed Staphylococcus aureus corneal ulcer were randomly divided into three groups. Seven rabbits were used as blank control groups; seven rabbits were treated with CXL combined with riboflavin and 440 nm blue light; and seven rabbits were treated with CXL combined with riboflavin and 370 nm ultraviolet A light...
June 23, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28644421/antibacterial-effect-of-a-4x-cu-tio%C3%A2-coating-simulating-acute-periprosthetic-infection-an-animal-model
#8
Andreas Mauerer, Stefanie Stenglein, Stefan Schulz-Drost, Christoph Schörner, Dominic Taylor, Sebastian Krinner, Frank Heidenau, Werner Adler, Raimund Forst
The purpose of our study was to investigate the antibacterial effect of a spacer (Ti6Al4V) coated with 4x Cu-TiO₂ in an animal model simulating an acute periprosthetic infection by Staphylococcus aureus. Ti6Al4 bolts contaminated with Staphylococcus aureus were implanted into the femoral condyle of rabbits (n = 36) divided into 3 groups. After one week in group 1 (control) the bolts were removed without any replacement. In group2 Ti6Al4V bolts with a 4x Cu-TiO₂ coating and in group 3 beads of a gentamicin-PMMA chain were imbedded into the borehole...
June 23, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28644240/corneal-stiffening-by-a-bacteriochlorophyll-derivative-with-dextran-and-near-infrared-light-effect-of-shortening-irradiation-time-up-to-1-minute
#9
Jurriaan Brekelmans, Alexandra Goz, Mor M Dickman, Alexander Brandis, Xiaomeng Sui, H Daniel Wagner, Rudy M M A Nuijts, Avigdor Scherz, Arie L Marcovich
PURPOSE: The aim of this study is to determine the effect of variation of the exposure time of near-infrared irradiation on corneal stiffening after a bacteriochlorophyll derivative (WST11) with dextran (WST-D) application. METHODS: One hundred four paired eyes of 3-month-old New Zealand White rabbits were included in this study. Fifty-two eyes (ex vivo n = 34, in vivo n = 18) were mechanically deepithelialized, treated topically with WST-D, and irradiated at 10 mW/cm using a diode laser at 755 nm for 1, 5, or 30 minutes...
June 21, 2017: Cornea
https://www.readbyqxmd.com/read/28643798/topical-administration-of-esculetin-as-a-potential-therapy-for-experimental-dry-eye-syndrome
#10
D Jiang, X Liu, J Hu
PurposeIn this study, we investigated the therapeutic effects of topical Esculetin for dry eye rabbits through the ocular tests, inflammatory factor levels and specific phosphorylated protein expressions of ERK1/2 singnal pathway.Patients and methodsThirty-two healthy adult male New Zealand white rabbits were chosen for the study. DES models were established after removing of the main lacrimal gland, Harderian gland and nictitating membrane in the left eyes and randomly divided into group DES control, group CsA, group Esculetin and group Esculetin combined with CsA (C&E), meanwhile the right eyes served as group Normal control...
June 23, 2017: Eye
https://www.readbyqxmd.com/read/28643535/efficacy-of-platelets-in-bone-healing-a-systematic-review-on-animal-studies
#11
Sabrina Marcazzan, Roberto Lodovico Weinstein, Massimo Del Fabbro
In presence of large bone defects, delayed bone union, non-union, fractures, and implant surgery, bone reconstruction may be necessary. Different strategies have been employed to enhance bone healing among which the use of autologous platelet concentrates. Due to the high content of platelets and platelet-derived bioactive molecules (e.g., growth factors, antimicrobial peptides), they are promising candidates to increase bone healing. However, a high heterogeneity of both preclinical and clinical studies resulted in contrasting results...
June 23, 2017: Platelets
https://www.readbyqxmd.com/read/28643432/the-penetration-and-phenotype-modulation-of-smooth-muscle-cells-on-surface-heparin-modified-poly-%C3%AE%C2%B5-caprolactone-vascular-scaffold
#12
Jie Cao, Xue Geng, Juan Wen, Qingxuan Li, Lin Ye, Aiying Zhang, Zengguo Feng, Lianrui Guo, Yongquan Gu
The tubular porous poly(ε-caprolactone)(PCL) scaffold was fabricated by electrospinning. After then, the scaffold's surface was firstly eroded by hexyldiamine to endow amine group, and heparin was covalently grafted to the surface to get surface heparin modified scaffold(ShPCL scaffold). It was found that ShPCL scaffold can induce smooth muscle cells (SMCs) to penetrate the scaffold surface, while the SMCs can't penetrate the surface of PCL scaffold. Subsequently, the rabbit SMCs were seeded on the ShPCL scaffold and cultured for 14 days...
June 23, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28643254/gene-targeting-in-rabbits-single-step-generation-of-knock-out-rabbits-by-microinjection-of-crispr-cas9-plasmids
#13
Yoshihiro Kawano, Arata Honda
The development of genome editing technology has allowed gene disruptions to be achieved in various animal species and has been beneficial to many mammals. Gene disruption using pluripotent stem cells is difficult to achieve in rabbits, but thanks to advances in genome editing technology, a number of gene disruptions have been conducted. This paper describes a simple and easy method for carrying out gene disruptions in rabbits using CRISPR/Cas9 in which the gene to be disrupted is marked, the presence or absence of off-target candidates is checked, and a plasmid allowing simultaneous expression of Cas9 and sgRNA is constructed...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28642110/pedf-plus-dha-modulate-inflammation-and-stimulate-nerve-regeneration-after-hsv-1-infection
#14
Jiucheng He, Donna Neumann, Azucena Kakazu, Thang Luong Pham, Farhana Musarrat, M Soledad Cortina, Haydee E P Bazan
Herpes simplex virus type-1 (HSV-1) infection leads to impaired corneal sensation and, in severe cases, to corneal ulceration, melting and perforation. Here, we explore the potential therapeutic action of pigment epithelial-derived factor (PEDF) plus docosahexaenoic acid (DHA) on corneal inflammation and nerve regeneration following HSV-1 infection. Rabbits inoculated with 100,000 PFU/eye of HSV-1 strain 17Syn+ were treated with PEDF + DHA or vehicle. PEDF + DHA treatment resulted in a biphasic immune response with stronger infiltration of CD4+T cells, neutrophils and macrophages at 7-days post-treatment (p...
June 19, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28642006/exoenzyme-activity-and-possibility-identification-of-candida-dubliniensis-among-candida-albicans-species-isolated-from-vaginal-candidiasis
#15
Maryam Jafari, Samira Salari, Keyvan Pakshir, Kamiar Zomorodian
OBJECTIVES: Vulvovaginal candidiasis (VVC) or vaginal candidiasis is a common fungal infection of the genitals causing inflammation, irritation, itching, and vaginal discharge. Common yeast infections are caused by the yeast species C. albicans. However, there are other species of Candida such as C. dubliniensis which are considered as the causative agents of this infection. Hydrolytic enzymes such as proteinase and coagulase are known as virulence factors. The aim of this study was the molecular confirmation and differentiation of C...
June 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28641985/single-step-colony-assay-for-screening-antibody-libraries
#16
Mieko Kato, Yoshiro Hanyu
We describe a method, single-step colony assay, for simple and rapid screening of single-chain Fv fragment (scFv) libraries. Colonies of Escherichia coli expressing the scFv library are formed on a hydrophilic filter that is positioned in contact with a membrane coated with an antigen. scFv expression is triggered upon treatment of colonies with an induction reagent, following which scFvs are secreted from the cells and diffused to the antigen-coated membrane. scFvs that exhibit binding affinity for the antigen are captured by the membrane-immobilized antigen...
June 19, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28641647/-clinical-significance-of-serum-thrombopoietin-levels-in-patients-with-aplastic-anaemia
#17
Hai Cheng, Jiang Cao, Wei Chen, Kun-Ming Qi, Zhi-Ling Yan, Kai-Lin Xu
OBJECTIVE: To evaluate the clinical significance of thrombopoietin (TPO) level in diagnosis of pateints with aplastic anaemia (AA). METHODS: The TPO levels in sera from 54 AA patients and 119 healthy controls were examined. A total of 92 samples were collected from AA patients including 43 samples harvested at diagnosis, 23 samples in the cytopenic period after treatment, and 26 samples of patients in partial (n=10) or complete remission (n=16) following immunosuppressive treatment...
June 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28640941/phox2b-reliably-distinguishes-neuroblastoma-among-small-round-blue-cell-tumors
#18
Yin P Hung, John P Lee, Andrew M Bellizzi, Jason L Hornick
AIMS: Neuroblastoma shows considerable histologic overlap with other small round blue cell tumors. PHOX2B, a transcription factor essential for autonomic nervous system development, has been reported as an immunohistochemical marker for neuroblastoma. The purpose of this study was to validate the specificity and diagnostic utility of PHOX2B for peripheral neuroblastic tumors. METHODS AND RESULTS: We evaluated 240 cases (133 in whole-tissue sections; 107 in tissue microarrays), including 76 peripheral neuroblastic tumors [median age 2 years; including 4 adults] and 164 other tumors: 44 Wilms tumors; 20 Ewing sarcomas; 10 each CIC-rearranged round cell sarcomas, poorly differentiated synovial sarcomas, lymphoblastic lymphomas, alveolar rhabdomyosarcomas, embryonal rhabdomyosarcomas, mesenchymal chondrosarcomas, Merkel cell carcinomas, olfactory neuroblastomas, and melanomas; 5 each NUT midline carcinomas and desmoplastic small round cell tumors...
June 22, 2017: Histopathology
https://www.readbyqxmd.com/read/28640847/heart-rate-lowering-treatment-leads-to-a-reduction-in-vulnerable-plaque-features-in-atherosclerotic-rabbits
#19
Raf H M van Hoof, Evelien Hermeling, Judith C Sluimer, Julie Salzmann, Arnold P G Hoeks, Jérôme Roussel, Mat J A P Daemen, Harry Struijker-Boudier, Joachim E Wildberger, Sylvia Heeneman, M Eline Kooi
OBJECTIVE: To investigate the effect of a heart rate (HR) lowering agent (Ivabradine) on features of atherosclerotic plaque vulnerability with magnetic resonance imaging (MRI), ultrasound imaging, and histology. APPROACH AND RESULTS: Atherosclerosis was induced in the abdominal aorta of 19 rabbits. Nine rabbits were treated with Ivabradine (17 mg/kg/day) during the entire study period. At week 14, imaging was performed. Plaque size was quantified on contrast-enhanced T1-weighted MR images...
2017: PloS One
https://www.readbyqxmd.com/read/28639466/genetic-characterization-of-sarcoptes-scabiei-from-black-bears-ursus-americanus-and-other-hosts-in-eastern-united-states
#20
Sarah Peltier, Justin D Brown, Mark Ternent, Kevin D Niedringhaus, Krysten Schuler, Elizabeth Bunting, Megan Kirchgessner, Michael John Yabsley
Since the early 1990s there has been an increase in the number of cases and geographic expansion of severe mange in the black bear (Ursus americanus) population in Pennsylvania. Although there are 3 species of mites associated with mange in bears, Sarcoptes scabiei has been identified as the etiologic agent in these Pennsylvania cases. Historically S. scabiei-associated mange in bears has been uncommon and sporadic although it is widespread and relatively common in canid populations. To better understand this recent emergence of sarcoptic mange in bears in Pennsylvania and nearby states, we genetically characterized S...
June 22, 2017: Journal of Parasitology
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