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https://www.readbyqxmd.com/read/28926414/exploration-of-quantitative-sensory-testing-in-latent-trigger-points-and-referred-pain-areas
#1
Silvia Ambite-Quesada, José L Arías-Buría, Carol A Courtney, Lars Arendt-Nielsen, César Fernández-de-Las-Peñas
OBJECTIVE: To investigate somato-sensory nerve fibre function by applying different quantitative sensory testing including thermal, mechanical and vibration thresholds over latent trigger points (TrP) and in its associated referred pain area. METHODS: A total of 20 subjects with unilateral latent TrPs in the extensor carpi radialis brevis were included. Warmth detection threshold (WDT), cold detection threshold CDT) and heat/cold pain thresholds (HPT, CPT), mechanical detection (MDT) and pain (MPT) thresholds, vibration threshold (VT), and pressure pain thresholds (PPT) were blinded assessed over the TrP, in the referred pain area, and in the respective contra-lateral mirror areas...
September 15, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28917815/mitigation-of-nitrite-toxicity-by-increased-salinity-is-associated-with-multiple-physiological-responses-a-case-study-using-an-economically-important-model-species-the-juvenile-obscure-puffer-takifugu-obscurus
#2
Jun Wang, Hengxing Tang, Xingxing Zhang, Xiaofeng Xue, Xuexia Zhu, Yafen Chen, Zhou Yang
Nitrite is a common pollutant in water and is highly toxic to aquatic animals. To reveal the mechanism of salinity in attenuating nitrite toxicity to fish, we measured the physiological responses of juvenile Takifugu obscurus exposed to nitrite concentrations (0, 10, 20, 50, and 100 mg/L) under different salinity levels (0, 10, and 20 ppt) for 96 h. Salinity increased the survival rates of juvenile T. obscurus exposed to nitrite. Changes in key hematological parameters, antioxidant system, malondialdehyde, Na(+)/K(+)-ATPase, and HSP70 indicated that nitrite induced considerable damage to juveniles; salinity mitigated the harmful effects...
September 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28917046/nonradioactive-isotopic-labeling-and-tracing-of-selenoproteins-in-cultured-cell-lines
#3
Jordan Sonet, Sandra Mounicou, Laurent Chavatte
Selenium (Se) is an essential component of genetically encoded selenoproteins, in the form of a rare amino acid, namely the selenocysteine (Sec). Radioactive (75)Se has been widely used to trace selenoproteins in vitro and in vivo (cell models and animals). Alternatively, its unique isotopic pattern can be used to detect and characterize nonradioactive Se-compounds in cellular extracts using molecular or elemental mass spectrometry at ppm levels. However, when studying trace levels of Se-compounds, such as selenoproteins (ppt levels), the distribution of the signal between its six naturally abundant isotopes reduces its sensitivity...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28912629/spinal-manipulation-does-not-affect-pressure-pain-thresholds-in-the-absence-of-neuromodulators-a-randomized-controlled-trial
#4
Max K Jordon, Paul F Beattie, Sarah D'Urso, Sarah Scriven
BACKGROUND: Measurement of pressure pain threshold (PPT) is a way to determine one of the many potential treatment effects of spinal manipulative therapy. OBJECTIVE: To determine how multiple spinal manipulations administered in a single-session affected PPTs at local and distal sites in asymptomatic individuals. METHODS: Participants were randomly assigned into one of three groups: Group one (n = 18) received a lumbar manipulation followed by a cervical manipulation...
September 2017: Journal of Manual & Manipulative Therapy
https://www.readbyqxmd.com/read/28900826/comparative-examination-of-temporal-glyoxalase-1-variations-following-perforant-pathway-transection-excitotoxicity-and-controlled-cortical-impact-injury
#5
Philipp Pieroh, Daniel-Christoph Wagner, Beat Alessandri, Mojgan Dabbagh Nazari, Angela Ehrlich, Chalid Ghadban, Constance Hobusch, Gerd Birkenmeier, Faramarz Dehghani
Following acute neuronal lesions, metabolic imbalance occurs, the rate of glycolysis increases, and methylglyoxal (MGO) forms, finally leading to metabolic dysfunction and inflammation. The glyoxalase system is the main detoxification system for MGO and is impaired following excitotoxicity and stroke. However, it is not known yet whether alterations of the glyoxalase system are also characteristic for other neuronal damage models. Neuronal damage was induced in organotypic hippocampal slice cultures by transection of perforant pathway (PPT; 5 min to 72 h) and N-methyl-D-aspartate (NMDA; 50 μM for 4 h) or in vivo after controlled cortical impact (CCI) injury (2 h to 14 days)...
September 12, 2017: Neurotoxicity Research
https://www.readbyqxmd.com/read/28887333/rapid-estrogen-receptor-alpha-signaling-mediated-by-erk-activation-regulates-vascular-tone-in-male-and-ovary-intact-female-mice
#6
Seong Chul Kim, Austin C Boese, Matthew H Moore, Rea M Cleland, Lin Chang, Patrice Delafontaine, Ke-Jie Yin, Jean-Pyo Lee, Milton H Hamblin
Estrogen has been shown to affect vascular reactivity. Here, we assessed estrogen receptor-alpha (ERα) dependency of estrogenic effects on vasorelaxation via a rapid nongenomic pathway in both male and ovary-intact female mice. We compared the effect of a primary estrogen, 17 beta-estradiol (E2) or 4,4',4"-(4-propyl-[1H]pyrazole-1,3,5-triyl)tris-phenol (PPT) (selective ERα agonist). We found that E2 and PPT induced greater aortic relaxation in females than males, indicating ERα mediation, which is further validated by employing ERα antagonism...
September 8, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28884481/estrogen-receptor-%C3%AE-selective-agonist-ameliorates-liver-cirrhosis-in-rats-by-inhibiting-the-activation-and-proliferation-of-hepatic-stellate-cells
#7
Bin Zhang, Cheng-Gang Zhang, Lin-Hua Ji, Gang Zhao, Zhi-Yong Wu
AIM: To explore the roles of ER subtypes and corresponding agonists/antagonists on the development of cirrhosis and activation and proliferation of HSCs. METHODS: Carbon tetrachloride (CCl4 ) -induced cirrhotic ovariectomized rats were administered non-selective ER agonist (β-estradiol, E2), ER selective agonists (ERα agonist, PPT; ERβ agonist, DPN; GPER agonist, G1) or E2 + ER selective antagonists (ERα antagonist, MPP; ERβ antagonist, PHTPP; GPER antagonist, G15) for 12 weeks...
September 7, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28879361/development-of-lithium-attachment-mass-spectrometry-knudsen-effusion-and-chemical-ionisation-mass-spectrometry-kems-cims
#8
A Murray Booth, Thomas J Bannan, Med Benyezzar, Asan Bacak, M Rami Alfarra, David Topping, Carl J Percival
Lithium ion attachment mass spectrometry provides a non-specific, non-fragmenting, sensitive and robust method for the detection of volatile species in the gas phase. The design, manufacture and results of lithium based ion attachment ionisation sources for two different mass spectrometry systems are presented. In this study trace gas analysis is investigated using a modified Chemical Ionization Mass Spectrometer (CIMS) and vapour pressure measurements are made using a modified Knudsen Effusion Mass Spectrometer (KEMS)...
September 7, 2017: Analyst
https://www.readbyqxmd.com/read/28878452/the-effects-of-spinal-support-device-on-pain-and-extensibility-of-the-hamstrings-in-patients-with-non-specific-low-back-pain
#9
Eun Tae Jeon, Jin-Hwa Jung, Jong Hoon Moon, Kyoung-Sim Jung, Young Sik Won, Sung-Jin Kim, Suk-Chan Hahm, Hwi-Young Cho
[Purpose] The objective of this study was to investigate the effects of spinal support device (SSD) on pain and hamstring extensibility in patients with non-specific low back pain (NSLBP). [Subjects and Methods] 20 patients with NSLBP were recruited and randomly assigned to either the SSD group or the control group. In the SSD group, SSD was applied; in the control group, bed rest in supine position was performed. Both groups underwent treatment 20 min/day, 3 times a week, for a duration of 4 weeks. To assess the hamstring extensibility, sit and reach test (SRT) was performed...
August 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28874625/a-rare-case-of-squamous-cell-carcinoma-of-a-proliferating-trichilemmal-tumour
#10
Bruno Di Pace, Vincenzo Verdura, Marina Concilio, Carlo Baldi, Pio Zeppa, Giovanni Francesco Nicoletti, Corrado Rubino
INTRODUCTION: Squamous Cell Carcinoma (SCC) includes several subtypes and these can be classified according to their clinical behaviours from the least invasive to the most aggressive. Moreover, it is appropriate to analyse their clinicalpathological patterns 1. In light of its wide histopathological variability, we encountered a rare malignant cutaneous lesion: a SCC of a proliferating trichilemmal tumour (PTT) nature. CASE REPORT: We describe the clinical and pathologic findings of an 82-year-old woman, who developed a SCC with areas of trichilemmal differentiation...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28874585/active-molecular-iodine-photochemistry-in-the-arctic
#11
Angela R W Raso, Kyle D Custard, Nathaniel W May, David Tanner, Matt K Newburn, Lawrence Walker, Ronald J Moore, L G Huey, Liz Alexander, Paul B Shepson, Kerri A Pratt
During springtime, the Arctic atmospheric boundary layer undergoes frequent rapid depletions in ozone and gaseous elemental mercury due to reactions with halogen atoms, influencing atmospheric composition and pollutant fate. Although bromine chemistry has been shown to initiate ozone depletion events, and it has long been hypothesized that iodine chemistry may contribute, no previous measurements of molecular iodine (I2) have been reported in the Arctic. Iodine chemistry also contributes to atmospheric new particle formation and therefore cloud properties and radiative forcing...
September 5, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28870314/visual-and-sensitive-fluorescent-sensing-for-ultratrace-mercury-ions-by-perovskite-quantum-dots
#12
Li-Qiang Lu, Tian Tan, Xi-Ke Tian, Yong Li, Pan Deng
Mercury ions sensing is an important issue for human health and environmental safety. A novel fluorescence nanosensor was designed for rapid visual detection of ultratrace mercury ions (Hg(2+)) by using CH3NH3PbBr3 perovskite quantum dots (QDs) based on the surface ion-exchange mechanism. The synthesized CH3NH3PbBr3 QDs can emitt intense green fluorescence with high quantum yield of 50.28%, and can be applied for Hg(2+) sensing with the detection limit of 0.124 nM (24.87 ppt) in the range of 0 nM-100 nM...
September 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28852442/cardiovascular-effects-of-nitrergic-system-of-the-pedunculopontine-tegmental-nucleus-in-anesthetized-rats
#13
Mohammad Naser Shafei, Tahereh Nikyar, Mahmoud Hosseini, Saeed Niazmand, Maryam Paseban
OBJECTIVES: Nitric oxide (NO) is an important neurotransmitter in central nervous system involved in central cardiovascular regulation. The presence of NO in the pedunculopontine tegmental (PPT) nucleus has been shown, but its cardiovascular effect has not been determined. In the present study, the cardiovascular effect of NO in the PPT nucleus was evaluated. MATERIALS AND METHODS: After induction of anesthesia, a polyethylene catheter (PE-50) filled with heparinized saline inserted into the femoral artery, and the blood pressure (BP) and heart rate (HR) were continuously recorded...
July 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28845039/preoperative-and-postoperative-pituitary-function-in-patients-with-tuberculum-sellae-meningioma-based-on-pituitary-provocation-tests
#14
Shingo Fujio, Hirofumi Hirano, Mami Yamashita, Satoshi Usui, Yasuyuki Kinoshita, Atsushi Tominaga, Tomoko Hanada, Hitoshi Yamahata, Hiroshi Tokimura, Ryosuke Hanaya, Kaoru Kurisu, Kazunori Arita
Given the anatomical proximity of tuberculum sellae meningioma (TSM) to the hypothalamo-pituitary system, pituitary function impairments are of great concern. We retrospectively investigated pituitary function changes following surgery in patients with TSM using pituitary provocation tests (PPTs). Thirty-one patients (27 females and 4 males) with TSM underwent initial transcranial surgery (29 patients) or transsphenoidal surgery (two patients); surgeries were performed carefully to avoid injuring the pituitary stalk...
August 25, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28844852/temperament-as-a-modulating-factor-of-pain-sensitivity-in-combat-sport-athletes
#15
Katarzyna Leźnicka, Anna Starkowska, Maciej Tomczak, Paweł Cięszczyk, Monika Białecka, Maria Ligocka, Piotr Żmijewski, Maciej Pawlak
The aim of this study was to characterise the temperament of combat athletes in comparison to that of individuals who do not practise any sports with regard to pain sensitivity measured with the cold pressor test (CPT) and pressure pain threshold (PPT). The study involved 284 healthy men, aged 18 to 43years. The first group consisted of 198 combat athletes, including boxing (n=19), mixed martial arts (MMA) (n=97) and karate (n=82), aged from 18 to 43years. The control group consisted of 86 subjects between the ages of 18 and 26years, academic students not practising any sport professionally...
August 26, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28843687/short-communication-sensitive-detection-of-norbixin-in-dried-dairy-ingredients-at-concentrations-of-less-than-1-part-per-billion
#16
B G Carter, C W Park, M A Drake
Norbixin is the water-soluble carotenoid in annatto extracts used in the cheese industry to color Cheddar cheese. The purpose of norbixin is to provide cheese color, but norbixin is also present in the whey stream and contaminates dried dairy ingredients. Regulatory restrictions dictate that norbixin cannot be present in dairy ingredients destined for infant formula or ingredients entering different international markets. Thus, there is a need for the detection and quantification of norbixin at very low levels in dried dairy ingredients to confirm its absence...
August 23, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28837765/intracellular-assembly-of-nuclear-targeted-gold-nanosphere-enables-selective-plasmonic-photothermal-therapy-of-cancer-by-shifting-their-absorption-wavelength-toward-near-infrared-region
#17
Sajanlal R Panikkanvalappil, Nasrin Hooshmand, Mostafa A El-Sayed
Despite the important applications of near-infrared (NIR) absorbing nanomaterials in plasmonic photothermal therapy (PPT), their high yield synthesis and nonspecific heating during the active- and passive-targeted cancer therapeutic strategies remain challenging. In the present work, we systematically demonstrate that in situ aggregation of typical non-NIR absorbing plasmonic nanoparticles at the nuclear region of the cells could translate them into an effective NIR photoabsorber in plasmonic photothermal therapy of cancer due to a significant shift of the plasmonic absorption band to the NIR region...
September 7, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28818565/raw-starch-microparticles-have-immunostimulant-activity-in-mice-vaccinated-with-bcg-and-challenged-with-mycobacterium-tuberculosis
#18
Silvia Moreno-Mendieta, Jorge Barrios-Payán, Dulce Mata-Espinosa, Sergio Sánchez, Rogelio Hernández-Pando, Romina Rodríguez-Sanoja
The main challenge for vaccine development or improvement is the lack of safe adjuvants or immunostimulants that induce protective immune responses and can be used for mucosal immunization, which is a highly desirable strategy for vaccination against infectious diseases acquired by oral or intranasal routes. One promising alternative is the use of biodegradable and biocompatible polymeric microparticles. Recently, we developed an immobilization and delivery system with starch microparticles (SMPs) and a starch-binding domain (SBDtag) suitable for the mucosal administration of antigens and the induction of antigen-specific immune responses...
August 14, 2017: Vaccine
https://www.readbyqxmd.com/read/28809884/whispering-gallery-mode-laser-based-noise-immune-cavity-enhanced-optical-heterodyne-molecular-spectrometry
#19
Gang Zhao, Thomas Hausmaninger, Weiguang Ma, Ove Axner
The whispering-gallery-mode (WGM) laser is a type of laser that has an exceptionally narrow linewidth. Noise-immune cavity-enhanced optical heterodyne molecular spectrometry, which is a detection technique with extraordinary properties that benefit from narrow linewidth lasers, has been realized with a WGM laser. By locking to a cavity with a finesse of 55 000, acetylene and carbon dioxide could be simultaneously detected down to an unprecedented noise equivalent absorption per unit length of 6.6×10(-14)  cm(-1) over 150 s, corresponding to 5 ppt of C2H2...
August 15, 2017: Optics Letters
https://www.readbyqxmd.com/read/28804518/comparative-frequency-of-four-different-types-of-pregnancy-associated-thyrotoxicosis-in-a-single-thyroid-centre
#20
Akane Ide, Nobuyuki Amino, Takumi Kudo, Waka Yoshioka, Mako Hisakado, Eijun Nishihara, Mitsuru Ito, Shuji Fukata, Hirotoshi Nakamura, Akira Miyauchi
BACKGROUND: Pregnancy and delivery markedly influence thyroid function. However, the comparative prevalence of gestational thyrotoxicosis (GT), new onset of Graves' disease during pregnancy (GD during pregnancy), postpartum destructive thyrotoxicosis (PPT), and postpartum Graves' thyrotoxicosis (PPGD) has not yet been determined. METHODS: We prospectively registered and performed a review of 4127 consecutive non treated female patients with thyrotoxicosis, seen between August 2008 and December 2013 in our outpatient clinic of Kuma Hospital...
2017: Thyroid Research
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