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https://www.readbyqxmd.com/read/28646711/effect-of-memantine-on-c-reactive-protein-and-lipid-profiles-in-bipolar-disorder
#1
Hui Hua Chang, Po See Chen, Tzu-Yun Wang, Sheng-Yu Lee, Shiou-Lan Chen, San-Yuan Huang, Jau-Shyong Hong, Yen Kuang Yang, Ru-Band Lu
BACKGROUND: Balance in the immune system plays roles in bipolar disorder (BD) and its metabolic co-morbidities. Memantine is an NMDA receptor antagonist with anti-inflammatory effects. However, the effects of memantine adjunct treatment on metabolic status of BD are unclear. METHODS: During the 12 weeks period, a total of 191 BD patients were enrolled and split into valproate (VPA) + placebo and VPA + memantine (5mg/day) arms. The fasting plasma levels of high-sensitivity C-reactive protein (CRP) and metabolic indices were assessed...
June 9, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28646133/effects-of-energetic-ion-irradiation-on-wse2-sic-heterostructures
#2
Tan Shi, Roger C Walker, Igor Jovanovic, Joshua A Robinson
The remarkable electronic properties of layered semiconducting transition metal dichalcogenides (TMDs) make them promising candidates for next-generation ultrathin, low-power, high-speed electronics. It has been suggested that electronics based upon ultra-thin TMDs may be appropriate for use in high radiation environments such as space. Here, we present the effects of irradiation by protons, iron, and silver ions at MeV-level energies on a WSe2/6H-SiC vertical heterostructure studied using XPS and UV-Vis-NIR spectroscopy...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28637338/complex-interactions-between-potentially-pathogenic-opportunistic-and-resident-bacteria-emerge-during-infection-on-a-reef-building-coral
#3
Sarah A Gignoux-Wolfsohn, Felicia M Aronson, Steven V Vollmer
Increased bacterial diversity on diseased corals can obscure disease etiology and complicate our understanding of pathogenesis. To untangle microbes that may cause white band disease signs from microbes responding to disease, we inoculated healthy Acropora cervicornis corals with an infectious dose from visibly diseased corals. We sampled these dosed corals and healthy controls over time for sequencing of the bacterial 16S region. Endozoicomonas were associated with healthy fragments from 4/10 colonies, dominating microbiomes before dosing and decreasing over time only in corals that displayed disease signs, suggesting a role in disease resistance...
June 15, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28607022/pharmacokinetics-of-pyrazinamide-optimising-dosing-regimens-for-drug-sensitive-and-resistant-tuberculosis
#4
Maxwell T Chirehwa, Helen McIlleron, Roxana Rustomjee, Thuli Mthiyane, Philip Onyebujoh, Peter Smith, Paolo Denti
Pyrazinamide is used in the treatment of tuberculosis(TB) because its sterilising effect against tubercle bacilli allows treatment shortening. It is part of standard treatment for drug-susceptible and drug-resistant TB, and it is being considered as a companion drug in novel regimens. The aim of this analysis was to characterize factors contributing to the variability in exposure and to evaluate drug exposures using alternative doses, thus providing evidence to support revised dosing recommendations for drug-susceptible and multi-drug resistant tuberculosis(MDR-TB)...
June 12, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28588448/structural-changes-of-amyloid-beta-in-hippocampus-of-rats-exposed-to-ozone-a-raman-spectroscopy-study
#5
Selva Rivas-Arancibia, Erika Rodríguez-Martínez, Isidro Badillo-Ramírez, Ulises López-González, José M Saniger
The aim of this work was to study the effect of oxidative stress on the structural changes of the secondary peptide structure of amyloid beta 1-42 (Aβ 1-42), in the dentate gyrus of hippocampus of rats exposed to low doses of ozone. The animals were exposed to ozone-free air (control group) and 0.25 ppm ozone during 7, 15, 30, 60, and 90 days, respectively. The samples were studied by: (1) Raman spectroscopy to detect the global conformational changes in peptides with α-helix and β-sheet secondary structure, following the deconvolution profile of the amide I band; and (2) immunohistochemistry against Aβ 1-42...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28583647/institutional-local-diagnostic-reference-levels-in-fluoroscopically-guided-spine-surgery
#6
Vasileios I Metaxas, Gerasimos A Messaris, George D Gatzounis, Fotios N Tzortzidis, Dimitrios T Konstantinou, George S Panayiotakis
In this study, institutional (local) diagnostic reference levels (LDRLs) and action levels (ALs) for spine interventional procedures are reported. Fluoroscopy time (FT), kerma area product (KAP), cumulative dose (CD), as well as anatomical, clinical and technical factors affecting procedure complexity were recorded for 156 patients who underwent cervical and thoraco-lumbar interventions. Patient entrance surface dose (ESD), effective dose (ED), thyroid absorbed dose and gonadal dose were also estimated, based on KAP measurements...
May 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28582266/a-beam-monitoring-and-validation-system-for-continuous-line-scanning-in-proton-therapy
#7
Grischa Klimpki, Serena Psoroulas, Christian Bula, Urs Rechsteiner, Michael Eichin, Damien Weber, Antony Lomax, David Meer
Line scanning represents a faster and potentially more flexible form of pencil beam scanning than conventional <i>step-and-shoot</i> irradiations. It seeks to minimize dead times in beam delivery whilst preserving the possibility to modulate the dose at any point in the target volume. Our second generation proton gantry features irradiations in line scanning mode, but it still lacks a dedicated monitoring and validation system that guarantees patient safety throughout beam delivery. We report on its design and implementation in this paper...
June 5, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28573253/in-vivo-carbon-tetrachloride-induced-hepatoprotective-and-in-vitro-cytotoxic-activities-of-garcinia-hombroniana-seashore-mangosteen
#8
Nargis Jamila, Naeem Khan, Amir Atlas Khan, Imran Khan, Sadiq Noor Khan, Zainal Amiruddin Zakaria, Melati Khairuddean, Hasnah Osman, Kyong Su Kim
BACKGROUND: Garcinia hombroniana, known as "manggis hutan" (jungle mangosteen) in Malaysia, is distributed in tropical Asia, Borneo, Thailand, Andaman, Nicobar Islands, Vietnam and India. In Malaysia, its ripened crimson sour fruit rind is used as a seasoning agent in curries and culinary dishes. Its roots and leaves decoction is used against skin infections and after child birth. This study aimed to evaluate in vivo hepatoprotective and in vitro cytotoxic activities of 20% methanolic ethyl acetate (MEA) G...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28573236/quantification-of-glycyrrhizin-biomarker-in-glycyrrhiza-glabra-rhizome-and-baby-herbal-formulations-by-validated-rp-hptlc-methods
#9
Prawez Alam, Ahmed I Foudah, Hala H Zaatout, Kamal Y T, Maged S Abdel-Kader
BACKGROUND: A simple and sensitive thin-layer chromatographic method has been established for quantification of glycyrrhizin in Glycyrrhiza glabra rhizome and baby herbal formulations by validated Reverse Phase HPTLC method. MATERIALS AND METHODS: RP-HPTLC Method was carried out using glass coated with RP-18 silica gel 60 F254S HPTLC plates using methanol-water (7: 3 v/v) as mobile phase. RESULTS: The developed plate was scanned and quantified densitometrically at 256 nm...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28572006/electroencephalographic-and-biochemical-long-lasting-abnormalities-in-animal-model-of-febrile-seizure
#10
Haitham S Mohammed, Heba S Aboul Ezz, Heba M Sayed, Maha A Ali
Febrile seizures (FS) are convulsions associated with high body temperature. It has a high incidence in children from the age of 6months to 5years and may have adverse consequences in adulthood. The experimental model of FS could be induced in animals via hyperthermia. The present study was designed to investigate persistent electroencephalographic (EEG), neurochemical and behavioral alterations in adult animals that had experienced complex FS at their immature age. EEG signals were obtained from the cortex of both FS and control normothermic groups of animals...
May 29, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28554791/preferential-role-of-iron-in-heme-degradation-of-hemoglobin-upon-gamma-irradiation
#11
Javad Rafiei, Kamal Yavari, Ali A Moosavi-Movahedi
It is usually believed that γ-ray interaction with biomolecules is intermediately performed by reactive oxygen species (ROS) produced from radiolysis of water. Hemoglobin (Hb) as one of the most abundant biomolecule in blood and well-studied endogenously affected by ROS, was a good candidate for study. Adult human Hb was extracted and irradiated using four distinct 20, 60, 90 and 170Gy doses from Co-60 γ-ray source. UV-vis, fluorescence and FT-IR spectroscopies were used to study the whole conformational changes and partial degradation of heme...
May 26, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28551490/synthesis-and-stimulated-luminescence-property-of-zn-bo2-2-tb-3
#12
G Cedillo Del Rosario, E Cruz-Zaragoza, M García Hipólito, J Marcazzó, J M Hernández A, H Murrieta S
Zinc borate, Zn(BO2)2, doped with different concentrations of terbium (0.5-8mol%) was synthesized and polycrystalline samples were characterized by Scanning Electron Microscopy and X-Ray Diffraction. The Zn(BO2)2 was formed in the pure samples sintered at 750 and 800°C which has the body centered cubic structure, and a ZnB4O7 primitive orthorhombic phase was present. The thermoluminescent intensity was dependents on the thermal treatment (250-500°C) and also on the impurity concentration. The linear dose-response was obtained between 0...
May 24, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28551237/impact-of-%C3%AE-irradiation-on-physicochemical-properties-of-freeze-dried-amorphophallus-paeoniifolius-flour
#13
M Suriya, C Rethina, Mudasir Bashir, Chagam Koteswara Reddy, N Harsha, Sundaramoorthy Haripriya
Freeze dried raw (FDR) and freeze dried blanched (FDB) Amorphophallus paeoniifolius flours were irradiated at doses of 3, 6 and 12kGy. The irradiated flours were investigated for physicochemical, pasting, textural, thermal and morphological properties. Reduction in amylose content was observed with increasing irradiation dose. Carboxyl content of the flours increased significantly at higher doses. Decline in lightness (L(∗)) and increase in redness (a(∗)) were found to increase with the elevation of dosage...
November 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28549901/degradation-of-proteoglycan-4-lubricin-by-cathepsin-s-potential-mechanism-for-diminished-ocular-surface-lubrication-in-sj%C3%A3-gren-s-syndrome
#14
Suresh C Regmi, Michael L Samsom, Miriam L Heynen, Gregory D Jay, Benjamin D Sullivan, Sruthi Srinivasan, Barbara Caffery, Lyndon Jones, Tannin A Schmidt
Sjögren's syndrome (SS) is an autoimmune disease affecting the lacrimal and salivary glands with hallmark clinical symptoms of dry eye and dry mouth. Recently, markedly increased cathepsin S (CTSS) activity has been observed in the tears of SS patients. Proteoglycan 4 (PRG4), also known as lubricin, is an effective boundary lubricant that is naturally present on the ocular surface. While PRG4 is susceptible to proteolytic digestion, the potential effect of CTSS on PRG4 remains unknown. The objective of this study was to assess the ability of CTSS to enzymatically degrade purified PRG4, and PRG4 naturally present in human tears, and alter ocular surface boundary lubricating properties...
May 23, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28527204/levetiracetam-alters-oscillatory-connectivity-in-alzheimer-s-disease
#15
Christian S Musaeus, Mouhsin M Shafi, Emiliano Santarnecchi, Susan T Herman, Daniel Z Press
Seizures occur at a higher frequency in people with Alzheimer's disease (AD) but overt, clinically obvious events are infrequent. Evidence from animal models and studies in mild cognitive impairment suggest that subclinical epileptic discharges may play a role in the clinical and pathophysiological manifestations of AD. In this feasibility study, the neurophysiological and cognitive effects of acute administration of levetiracetam (LEV) are measured in patients with mild AD to test whether it could have a therapeutic benefit...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28515092/human-cd62l-dim-neutrophils-identified-as-a-separate-subset-by-proteome-profiling-and-in-vivo-pulse-chase-labelling
#16
Tamar Tak, Patrick Wijten, Marjolein Heeres, Peter Pickkers, Arjen Scholten, Albert J R Heck, Nienke Vrisekoop, Luke P Leenen, Jos Eacute A M Borghans, Kiki Tesselaar, Leo Koenderman
During acute inflammation three neutrophil subsets are found in the blood: neutrophils with a conventional segmented nucleus, neutrophils with a banded nucleus and T-cell-suppressing CD62L(dim) neutrophils with a high number of nuclear lobes. In this study (clinicaltrials.gov NCT01766414) we compared the in vivo kinetics and proteomes of banded, mature and hypersegmented neutrophils to determine whether these cell types represent truly different neutrophil subsets or reflect changes induced by LPS activation...
May 17, 2017: Blood
https://www.readbyqxmd.com/read/28509433/dosing-anticancer-drugs-in-infants-current-approach-and-recommendations-from-the-children-s-oncology-group-s-chemotherapy-standardization-task-force
#17
Frank M Balis, Richard B Womer, Stacey Berg, Naomi Winick, Peter C Adamson, Elizabeth Fox
An analysis of dose modifications for infants in 29 Children's Oncology Group protocols across 10 cancer types revealed 11 sets of criteria defining the infant population using age, weight, body surface area (BSA), or a combination of these parameters and eight dose modification methods. A new method of dosing anticancer drugs in infants was developed based on the rationale that prior modifications were implemented to reduce toxicity, which is not cancer-specific. The new method uses BSA dose banding in dosing tables for infants and children with a BSA <0...
May 16, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28496033/joint-toxicity-of-fluoroquinolone-and-tetracycline-antibiotics-to-zebrafish-danio-rerio-based-on-biochemical-biomarkers-and-histopathological-observation
#18
Lihe Ding, Luxiu Zang, Yuna Zhang, Yuhuan Zhang, Xuedong Wang, Weiming Ai, Nani Ding, Huili Wang
Herein, we report on the joint toxicity of four fluoroquinolones and two tetracyclines (β-diketone antibiotics-DKAs) to zebrafish based on a series of toxicological endpoints and histopathological observations. A positive dose-dependence was observed in DKA-exposure groups with a 72-hpf EC50 of 130.3 mg/L for hatching rate, 120-hpf LC50 of 149.8 mg/L, and 120-hpf EC50 of 135.1 mg/L for malformation rate. When zebrafish at 60 dpf were exposed to a series of DKA concentrations (45, 60 and 90 mg/L) for 7, 14 and 21 days, creatine kinase and AChE activities were significantly induced, and intracellular malondialdehyde increased in all treatments except for the 45 mg/L treatment...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/28495137/early-predictors-of-rapidly-evolving-multiple-sclerosis-a-case-report
#19
Kryshani T M Fernando, Michael James
Objective The aim of this case report is to highlight some important features of rapidly evolving Multiple Sclerosis. BACKGROUND: In a small proportion of patients, Multiple Sclerosis (MS) can present as a fulminant disease characterised by severe and frequent relapses. This form of rapidly evolving MS is associated with significant morbidity and mortality. It is therefore important to identify these patients as early as possible, so that they can be managed effectively. However, due to the rarity of fulminant forms of MS, there is limited data on the natural history and management of this condition...
June 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28489732/assessment-of-nevirapine-prophylactic-and-therapeutic-dosing-regimens-for-neonates
#20
Tim R Cressey, Baralee Punyawudho, Sophie Le Coeur, Gonzague Jourdain, Chalermpong Saenjum, Edmund Capparelli, Kanokwan Jittayanun, Siriluk Phanomcheong, Anita Luvira, Thitiporn Borkird, Achara Puangsombat, Leon Aarons, Pra-Ornsuda Sukrakanchana, Saik Urien, Marc Lallemant
BACKGROUND: Nevirapine (NVP) is a key component of antiretroviral prophylaxis and treatment for neonates. We evaluated current WHO weight-band NVP prophylactic dosing recommendations and investigated optimal therapeutic NVP dosing for neonates. METHODS: The PHPT-5 study in Thailand assessed the efficacy of 'Perinatal Antiretroviral Intensification' to prevent mother-to-child transmission of HIV in women with <8 weeks of antiretroviral treatment before delivery (NCT01511237)...
May 9, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
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