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https://www.readbyqxmd.com/read/29228508/cranial-backspatter-pattern-production-utilizing-human-cadavers
#1
Celestina Rossi, Lynne D Herold, Tom Bevel, Leslie McCauley, Stephanie Guadarrama
A backspatter pattern results from blood drops that travel retrograde to an applied external force. Historically, an array of animals and nonhuman objects have been used to create and study backspatter patterns. In this study, backspatter patterns captured on foam core targets that were placed 45.72 cm (18 in) behind the impact site (occipital area of the skull) were produced by cranial gunshots to human cadavers that were reinfused with fresh defibrinated bovine blood. These patterns were compared to the backspatter patterns produced by shooting blood-soaked sponges, a typical simulant used in controlled studies of backspatter pattern production and characteristics...
December 11, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29228445/the-protective-effect-and-its-mechanism-of-3-n-butylphthalide-pretreatment-on-cerebral-ischemia-reperfusion-injury-in-rats
#2
R-Y Yan, S-J Wang, G-T Yao, Z-G Liu, N Xiao
OBJECTIVE: To investigate the potential effect of 3-n-butylphthalide (NBP) pretreatment on the cerebral ischemia/reperfusion injury in rats and the relevant mechanism. MATERIALS AND METHODS: A total of 90 rats was divided into three groups: Sham operation group (Sham group), ischemia-reperfusion group (I-R group), and NBP pretreatment group (NBP group 75 mg·kg-1·d-1 gavage). Pre-treatment was given once a day within 1 week before establishing the rat model of cerebral ischemia-reperfusion injury...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228429/peripheral-blood-cd8-t-cell-profiles-in-patients-with-psoriatic-arthritis-a-cross-sectional-case-control-study
#3
E Colombo, G Galleri, G L Erre, C Piras, G Biondi, L Taras, A Zinellu, A A Mangoni, R Manetti, M Montesu, G Passiu
OBJECTIVE: While CD4+ T-cells are traditionally regarded as the main pathogenic T-cell subpopulation in psoriatic arthritis (PsA), the role of circulating CD8+ T-cells remains poorly characterized. We evaluated the differential representation of CD8+ T-cell subpopulations in peripheral blood (PB) of PsA patients. PATIENTS AND METHODS: CD8+IL-17+, CD8+IFNγ+ and CD8+IL-17-IL-22+ T-cells were evaluated by flow-cytometry in 25 consecutive PsA patients, 7 rheumatoid arthritis (RA) patients, 16 patients with psoriasis, and 26 healthy controls (HC)...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228348/flaxseed-supplementation-on-glucose-control-and-insulin-sensitivity-a-systematic-review-and-meta-analysis-of-25-randomized-placebo-controlled-trials
#4
Mohsen Mohammadi-Sartang, Zahra Sohrabi, Reza Barati-Boldaji, Hamidreza Raeisi-Dehkordi, Zohreh Mazloom
Context: The results of human clinical trials investigating the effects of flaxseed on glucose control and insulin sensitivity are inconsistent. Objective: The present study aimed to systematically review and analyze randomized controlled trials assessing the effects of flaxseed consumption on glycemic control. Data Sources: PubMed, Medline via Ovid, SCOPUS, EMBASE, and ISI Web of Sciences databases were searched up to November 2016. Study Selection: Clinical trials in which flaxseed or its products were administered as an intervention were included...
December 8, 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/29228246/clinical-impact-of-candida-spp-biofilm-production-in-a-cohort-of-patients-with-candidemia
#5
Priscilla Morais Monfredini, Ana Carolina Remondi Souza, Renan Pelluzzi Cavalheiro, Ricardo Andreotti Siqueira, Arnaldo Lopes Colombo
Persistent candidemia refers to the continued isolation of the same Candida species in the blood of a candidemic patient despite appropriate therapy. Despite the clinical importance of persistent candidemia, studies have superficially addressed the biological conditions behind this phenomenon. The aim of this study was to evaluate the correlation between the biofilm-forming ability by Candida bloodstream isolates and the persistence of infection. A total of 55 isolates of Candida were tested and characterized in two groups: (i) group I, which included seven patients with persistent candidemia, and (ii) group II, which included 18 patients with nonpersistent candidemia...
December 8, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29228197/efficacy-of-13-commercial-household-aerosol-insecticides-against-aedes-aegypti-diptera-culicidae-from-morelos-mexico
#6
Pablo A Kuri-Morales, Fabián Correa-Morales, Cassandra González-Acosta, Miguel Moreno-Garcia, Eduardo Dávalos-Becerril, José Ismael Benitez-Alva, Jorge Peralta-Rodriguez, Victor Salazar-Bueyes, Jesús F González-Roldán
In Mexico, Aedes aegypti (L.) (Diptera: Culicidae) is the primary vector of Dengue, Zika, and Chikungunya viruses. Control programs include community participation using personal protection such as household aerosol insecticides. In both, urban or rural areas, the use of aerosol insecticides is a common practice to avoiding mosquito biting. Thus, information on the efficacy of commercial products must be available. This study reports the efficacy of 13 household aerosol insecticides against Ae. aegypti from an endemic dengue area in Mexico...
December 8, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29228148/rapid-screening-method-for-detecting-highly-pathogenic-streptococcus-intermedius-strains-carrying-a-mutation-in-the-lacr-gene
#7
Toshifumi Tomoyasu, Masaki Matoba, Ayuko Takao, Atsushi Tabata, Robert A Whiley, Nobuko Maeda, Hideaki Nagamune
Streptococcus intermedius is a member of the normal human commensal flora and secretes a human-specific cytolysin intermedilysin (ILY) as a major virulence factor. Expression of ily is repressed by LacR and loss-of-function mutations of LacR are observed in many ILY high-producing strains isolated from deep-seated abscesses, suggesting that high ILY production is necessary for increased virulence. However, because ILY exhibits no β-hemolysis on animal blood agar plates, differentiating ILY high- and low-producing strains using conventional laboratory methods is not possible...
December 6, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29228007/conjugation-of-nitrated-acetaminophen-to-der-p1-amplifies-peripheral-blood-monocyte-response-to-der-p1
#8
Ryan G Thomas, Brenda M Rivera Reyes, Benjamin M Gaston, Nelki B Rivera Acosta, Ilya R Bederman, Laura A Smith, Morgan T Sutton, Benlian Wang, John F Hunt, Tracey L Bonfield
BACKGROUND: An association of acetaminophen use and asthma was observed in the International Study of Asthma and Allergies in Childhood study. However there are no clear mechanisms to explain an association between acetaminophen use and immunologic pathology. In acidic conditions like those in the stomach and inflamed airway, tyrosine residues are nitrated by nitrous and peroxynitrous acids. The resulting nitrotyrosine is structurally similar to 2,4-dinitrophenol and 2,4-dinitrochlorobenzene, known haptens that enhance immune responses by covalently binding proteins...
2017: PloS One
https://www.readbyqxmd.com/read/29227934/gabaa-receptor-activity-modulating-piperine-analogs-in-vitro-metabolic-stability-metabolite-identification-cyp450-reaction-phenotyping-and-protein-binding
#9
Volha Zabela, Timm Hettich, Götz Schlotterbeck, Laurin Wimmer, Marko D Mihovilovic, Fabrice Guillet, Belkacem Bouaita, Bénédicte Shevchenko, Matthias Hamburger, Mouhssin Oufir
In a screening of natural products for allosteric modulators of GABAA receptors (γ-aminobutyric acid type A receptor), piperine was identified as a compound targeting a benzodiazepine-independent binding site. Given that piperine is also an activator of TRPV1 (transient receptor potential vanilloid type 1) receptors involved in pain signaling and thermoregulation, a series of piperine analogs were prepared in several cycles of structural optimization, with the aim of separating GABAA and TRPV1 activating properties...
December 2, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29227829/a-long-noncoding-rna-from-the-hbs1l-myb-intergenic-region-on-chr6q23-regulates-human-fetal-hemoglobin-expression
#10
Tasha A Morrison, Ibifiri Wilcox, Hong-Yuan Luo, John J Farrell, Ryo Kurita, Yukio Nakamura, George J Murphy, Shuaiying Cui, Martin H Steinberg, David H K Chui
The HBS1L-MYB intergenic region (chr6q23) regulates erythroid cell proliferation, maturation, and fetal hemoglobin (HbF) expression. An enhancer element within this locus, highlighted by a 3-bp deletion polymorphism (rs66650371), is known to interact with the promoter of the neighboring gene, MYB, to increase its expression, thereby regulating HbF production. RNA polymerase II binding and a 50-bp transcript from this enhancer region reported in ENCODE datasets suggested the presence of a long noncoding RNA (lncRNA)...
November 29, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/29227717/quercetin-restores-corticosteroid-sensitivity-in-cells-from-patients-with-chronic-obstructive-pulmonary-disease
#11
Akihisa Mitani, Aishah Azam, Chaitanya Vuppusetty, Kazuhiro Ito, Nicolas Mercado, Peter J Barnes
Corticosteroid resistance is a major barrier to the effective treatment of chronic obstructive pulmonary disease (COPD). Oxidative stress from cigarette smoke and chronic inflammation is likely to induce this corticosteroid insensitivity. Quercetin is a polyphenol that has been reported to be an active oxygen scavenger as well as a functional adenosine monophosphate-activated protein kinase (AMPK) activator. The aim of this study was to investigate the effect of quercetin on corticosteroid responsiveness in COPD cells...
December 11, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29227638/by-product-free-intact-modification-of-insulin-by-cholesterol-end-modified-poly-ethylene-glycol-for-in-vivo-protein-delivery
#12
Shoichiro Asayama, Kana Nagashima, Yoichi Negishi, Hiroyoshi Kawakami
Insulin is a key peptide hormone used for the treatment of both type I and type II diabetes. To maximize the effect of the treatment of these diseases, PEGylation methods for the insulin are widely developed. Here, to make these PEGylation methods most simple, we report the by-product-free intact modification of insulin by cholesterol end-modified poly(ethylene glycol) with urethane, propyl, and methoxy groups, that is, Chol-U-Pr-mPEG. The noncovalent PEGylation by the Chol-U-Pr-mPEG has been achieved by simple mixing of insulin with the Chol-U-Pr-mPEG in aqueous solution, followed by freeze-drying...
December 11, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29227535/antidiabetic-and-lipid-lowering-effects-of-the-polyphenol-extracts-from-the-leaves-of-clausena-lansium-lour-skeels-on-streptozotocin-induced-type-2-diabetic-rats
#13
Fansheng Kong, Zhipeng Su, Xiaoming Guo, Feng Zeng, Yongguang Bi
Clausena lansium (Lour.) Skeels (Wampee) is widely grown in China and considered as a healthy fruit. Its leaves are also considered as traditional herbs. This study analyzed polyphenol compounds in polyphenol extracts of the leaves C. lansium (lour.) Skeels (PEL) and investigated the protective effect of PEL against hyperglycemia and hyperlipidemia in T2DM rats. The result showed that PEL is composed mainly of gallic acid, chlorogenic acid, coffee acid, ferulic acid, and rutin. PEL could obviously relieve some symptoms of T2DM rats, including emaciation, hyperhidrosis, polyphagia, diuresis, liver swelling, kidney, and pancreas hypertrophy, as well as reduce fasting blood glucose...
December 11, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29227173/changes-in-platelet-function-with-inflammation-in-patients-undergoing-vascular-surgery
#14
Bartosz Olechowski, Vikram Khanna, Mark Mariathas, Alexander Ashby, Richard T Dalton, Ian Nordon, Nicola Englyst, Scott Harris, Zoe Nicholas, Kala Thayalasamy, Michael Mahmoudi, Nick Curzen
The role of platelets in ischaemic events is well established. Aspirin represents the default antiplatelet and blocks the metabolism of arachidonic acid (AA) at the cyclo-oxygenase enzyme (COX). AA is commonly used as a test of response to aspirin, but recent data raise uncertainty about the validity of this approach. Specifically, in some patients AA-induced clotting is not suppressed, but the level of COX-dependent AA metabolite, thromboxane B2 (TXB2) is negligible. Furthermore, AA-induced whole blood clotting varies dynamically in individuals, who are aspirin responsive according to TXB2 levels...
December 11, 2017: Platelets
https://www.readbyqxmd.com/read/29226975/mathematical-modeling-and-simulation-in-animal-health-part-iii-using-nonlinear-mixed-effects-to-characterize-and-quantify-variability-in-drug-pharmacokinetics
#15
REVIEW
C Bon, P L Toutain, D Concordet, R Gehring, T Martin-Jimenez, J Smith, L Pelligand, M Martinez, T Whittem, J E Riviere, J P Mochel
A common feature of human and veterinary pharmacokinetics is the importance of identifying and quantifying the key determinants of between-patient variability in drug disposition and effects. Some of these attributes are already well known to the field of human pharmacology such as bodyweight, age, or sex, while others are more specific to veterinary medicine, such as species, breed, and social behavior. Identification of these attributes has the potential to allow a better and more tailored use of therapeutic drugs both in companion and food-producing animals...
December 11, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29226825/desacetyl-%C3%AE-melanocyte-stimulating-hormone-and-%C3%AE-melanocyte-stimulating-hormone-are-required-to-regulate-energy-balance
#16
Kathleen G Mountjoy, Alexandre Caron, Kristina Hubbard, Avik Shome, Angus C Grey, Bo Sun, Sarah Bould, Martin Middleditch, Beau Pontré, Ailsa McGregor, Paul W R Harris, Renata Kowalczyk, Margaret A Brimble, Rikus Botha, Karen M L Tan, Sarah J Piper, Christina Buchanan, Syann Lee, Anthony P Coll, Joel K Elmquist
OBJECTIVE: Regulation of energy balance depends on pro-opiomelanocortin (POMC)-derived peptides and melanocortin-4 receptor (MC4R). Alpha-melanocyte stimulating hormone (α-MSH) is the predicted natural POMC-derived peptide that regulates energy balance. Desacetyl-α-MSH, the precursor for α-MSH, is present in brain and blood. Desacetyl-α-MSH is considered to be unimportant for regulating energy balance despite being more potent (compared with α-MSH) at activating the appetite-regulating MC4R in vitro...
November 24, 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/29226783/evaluation-of-the-water-disinfection-by-product-dichloroacetonitrile-induced-biochemical-oxidative-histopathological-and-mitochondrial-functional-alterations-subacute-oral-toxicity-in-rats
#17
Ying Dong, Fang Li, Haijun Shen, Rongzhu Lu, Siqi Yin, Qi Yang, Zhuangfa Li, Suhua Wang
Dichloroacetonitrile (DCAN), an emerging nitrogenous disinfection by-product, is more genotoxic and cytotoxic than the currently regulated carbonaceous disinfection by-products such as haloacetic acids. Few mechanistic studies have been conducted on the hepatic and renal toxicities of DCAN. This study examined the clinical biochemical, hematological, histopathological, oxidative, and mitochondrial functional alterations to evaluate the systematic toxicity after subacute oral exposure of 11 or 44 mg/kg/day in rats for 28 days...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/29226714/-analysis-of-d-dimer-laboratory-findings-and-clinical-evaluation
#18
János Jákó
D-dimer is a product of the enzymatic degradation of the fibrinogen-fibrin molecule, and its existence is demonstrable in circulation. The test based limits may be considered as normal values. It was first thought to be a product of coagulation, then a product of lysis. High-concentration D-dimer in blood detected in thromboembolic diseases is considered to be of diagnostic value. In cases where thromboembolism was ruled out despite elevated titres but heparin (LMWH) or CLOPIDOGREL was given as a cautionary measure, we found that D-dimer values remained elevated...
December 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29226690/low-levels-of-endothelial-progenitor-cells-and-their-association-with-systemic-inflammation-and-monocyte-activation-in-older-hiv-infected-men
#19
Sophie Seang, Theodoros Kelesidis, Diana Huynh, Sangeun Park, Ardis Moe, Judith Currier, Jordan E Lake
BACKGROUND: Endothelial progenitor cells (EPCs) repair damaged vascular endothelium and low circulating EPC levels have been associated with cardiovascular disease (CVD). CD34+/KDR+ EPCs are commonly reported in literature and CD34+/CD133+/KDR+ EPCs are rare in circulation but highly specific for endothelial lineage. HIV-infected (HIV+) adults have chronic inflammation and increased CVD risk, but the relationship between CVD, vascular inflammation and EPCs in HIV remains unclear. METHODS: In a pilot study, EPCs were measured in 57 HIV+ men (≧50 years old, HIV-1 RNA <50 copies/mL on ART) by real-time flow cytometry using cellular immaturity (CD34 and/or CD133) and endothelial commitment (KDR) markers...
December 10, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29226422/pathogenesis-of-psoriasis-and-development-of-treatment
#20
REVIEW
Eisaku Ogawa, Yuki Sato, Akane Minagawa, Ryuhei Okuyama
The pathogenesis of psoriasis can be explained by dysregulation of immunological cell function as well as keratinocyte proliferation/differentiation. Recently, the immunological pathomechanism has been clarified substantially. Whereas T-helper (Th)1 overactivation was thought to induce occurrence of psoriasis, it has been demonstrated that Th17 cells play a key role. Th17 development is maintained by interleukin (IL)-23 mainly produced by dendritic cells. Th17 cells produce various cytokines, including IL-17A, IL-17F and IL-22...
December 10, 2017: Journal of Dermatology
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