keyword
MENU ▼
Read by QxMD icon Read
search

Telemetric

keyword
https://www.readbyqxmd.com/read/29323578/effects-of-black-cohosh-and-estrogen-on-core-body-and-tail-skin-temperatures-in-ovariectomized-rats-by-telemetric-monitoring-with-dual-thermistor-probes
#1
Y Sun, L H Qin, X Chen, X Yan, L Mao, W Bai, J Kang
OBJECTIVES: To investigate the effects of black cohosh and estrogen on the temperature in ovariectomized rats, the core body temperature (CBT) and tail-skin temperature (TST) were simultaneously monitored and the relationship between these two temperatures was explored. METHODS: Twenty-four female Sprague-Dawley rats aged 8 weeks were randomly divided into four groups: sham-operated (SHAM), ovariectomized (OVX), OVX treated with estradiol valerate (OVX + E), and OVX treated with isopropanolic black cohosh extract (OVX + ICR)...
January 11, 2018: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/29315578/hcn4-pacemaker-channels-attenuate-the-parasympathetic-response-and-stabilize-the-spontaneous-firing-of-sinoatrial-node
#2
Yuko Kozasa, Noriyuki Nakashima, Masayuki Ito, Taisuke Ishikawa, Hiroki Kimoto, Kazuo Ushijima, Naomasa Makita, Makoto Takano
The heart rate is dynamically controlled by the sympathetic and parasympathetic nervous systems that regulate the sinoatrial node (SAN). HCN4 pacemaker channels are well-known causative molecule of congenital sick sinus syndrome. Although HCN4 channels are activated by cAMP, the sympathetic response of SAN was preserved in the patients carrying loss-of-function mutations of HCN4 gene. In order to clarify the contribution of HCN4 channels in the autonomic regulation of SAN, we developed novel gain-of-function mutant mice in which expression level of HCN4 channels could be reversibly changed from zero to ∼3 times of that in wild type mice, using tetracycline trans-activator and tetracycline responsive element...
January 9, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29304719/neuroimmunology-of-traumatic-brain-injury-a-longitudinal-study-of-interdependency-of-inflammatory-markers-and-heart-rate-variability-in-severe-traumatic-brain-injury
#3
Akhil Deepika, Bhagavatula Indira Devi, Dhaval P Shukla, Talakad N Sathyaprabla, Rita Christopher, Shruthi S Ramesh
The purpose of the present study is to evaluate the inter-dependency between the electrophysiological (Heart rate variability) and inflammatory markers in traumatic brain injury (TBI) patients and the outcome in patients with severe TBI. A prospective exploratory study was done with a sample size of 89 severe traumatic brain injury patients. The Heart rate variability of these patients was recorded using a telemetric device BioHarness® (Zephyr technologies). The recordings were made on day 1 of the patients' admission into the ICU followed by serial recordings on Day 3 and day 10...
January 5, 2018: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29242602/altered-heart-rate-regulation-by-the-autonomic-nervous-system-in-mice-lacking-natriuretic-peptide-receptor-c-npr-c
#4
Motahareh Moghtadaei, Ellen Langille, Sara A Rafferty, Oleg Bogachev, Robert A Rose
Natriuretic peptides (NPs) play essential roles in the regulation of cardiovascular function. NP effects are mediated by receptors known as NPR-A, NPR-B or NPR-C. NPs have potent effects on regulation of heart rate (HR) by the autonomic nervous system (ANS), but the role of NPR-C in these effects has not been investigated. Accordingly, we have used telemetric ECG recordings in awake, freely moving wildtype and NPR-C knockout (NPR-C-/-) mice and performed heart rate variability (HRV) analysis to assess alterations in sympatho-vagal balance on the heart following loss of NPR-C...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29238261/physical-physiological-and-perceptual-match-demands-of-amateur-mixed-gender-touch-players
#5
Will Vickery, Alice Harkness
The purpose of this study was to provide a position specific (middle, link [male], link [female], wing) analysis of mixed gender touch on the physical physiological and perceptual demands of amateur players during match-play across a season. Distance and speed measures were obtained through the use of 10-Hz global positioning system devices, whilst telemetric heart rate devices were used determine a range of physiological measures. Players also provided a rating of perceived exertion following each match. The greatest physical demand was associated with the middle playing position by comparison to all others (Distance travelled ≥5...
December 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29214623/core-temperature-responses-of-military-working-dogs-during-training-activities-and-exercise-walks
#6
Catherine O'Brien, Anthony J Karis, William J Tharion, Heather M Sullivan, Reed W Hoyt
Heat strain is common in military working dogs (MWDs), but can be mitigated by limiting duration of activity to avoid overheating and allowing sufficient time for recovery. To determine work/rest times for MWDs, temperature responses during training must be characterized. This study measured body core temperature of 48 MWDs at Lackland Air Force Base, San Antonio, TX. Twenty-four MWDs in training for patrol and detection activities participated under a range of ambient temperatures in August (27°C-32°C), October (22°C-26°C) and March (approximately 13°C)...
October 2017: U.S. Army Medical Department Journal
https://www.readbyqxmd.com/read/29198308/payload-hardware-and-experimental-protocol-development-to-enable-future-testing-of-the-effect-of-space-microgravity-on-the-resistance-to-gentamicin-of-uropathogenic-escherichia-coli-and-its-%C3%AF-s-deficient-mutant
#7
A C Matin, J-H Wang, Mimi Keyhan, Rachna Singh, Michael Benoit, Macarena P Parra, Michael R Padgen, Antonio J Ricco, Matthew Chin, Charlie R Friedericks, Tori N Chinn, Aaron Cohen, Michael B Henschke, Timothy V Snyder, Matthew P Lera, Shannon S Ross, Christina M Mayberry, Sungshin Choi, Diana T Wu, Ming X Tan, Travis D Boone, Christopher C Beasley, Matthew E Piccini, Stevan M Spremo
Human immune response is compromised and bacteria can become more antibiotic resistant in space microgravity (MG). We report that under low-shear modeled microgravity (LSMMG), stationary-phase uropathogenic Escherichia coli (UPEC) become more resistant to gentamicin (Gm), and that this increase is dependent on the presence of σs (a transcription regulator encoded by the rpoS gene). UPEC causes urinary tract infections (UTIs), reported to afflict astronauts; Gm is a standard treatment, so these findings could impact astronaut health...
November 2017: Life Sciences in Space Research
https://www.readbyqxmd.com/read/29184505/heart-rate-fragmentation-a-symbolic-dynamical-approach
#8
Madalena D Costa, Roger B Davis, Ary L Goldberger
Background: We recently introduced the concept of heart rate fragmentation along with a set of metrics for its quantification. The term was coined to refer to an increase in the percentage of changes in heart rate acceleration sign, a dynamical marker of a type of anomalous variability. The effort was motivated by the observation that fragmentation, which is consistent with the breakdown of the neuroautonomic-electrophysiologic control system of the sino-atrial node, could confound traditional short-term analysis of heart rate variability...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29159668/new-pulmonary-hypertension-model-in-conscious-dogs-to-investigate-pulmonary-selectivity-of-acute-pharmacological-interventions
#9
Thomas Mondritzki, Philip Boehme, Lena Schramm, Julia Vogel, Ilka Mathar, Peter Ellinghaus, Peter Kolkhof, Erwin Bischoff, Jörg Hüser, Wilfried Dinh, Peter Sandner, Hubert Truebel
PURPOSE: Testing of investigational drugs in animal models is a critical step in drug development. Current models of pulmonary hypertension (PH) have limitations. The most relevant outcome parameters such as pulmonary artery pressure (PAP) are measured invasively which requires anesthesia of the animal. We developed a new canine PH model in which pulmonary vasodilators can be characterized in conscious dogs and lung selectivity can be assessed non-invasively. METHODS: Telemetry devices were implanted to measure relevant hemodynamic parameters in conscious dogs...
January 2018: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29138967/mice-lacking-egr1-have-impaired-clock-gene-bmal1-oscillation-locomotor-activity-and-body-temperature
#10
Casper Schwartz Riedel, Birgitte Georg, Henrik L Jørgensen, Jens Hannibal, Jan Fahrenkrug
Early growth response transcription factor 1 (EGR1) is expressed in the suprachiasmatic nucleus (SCN) after light stimulation. We used EGR1-deficient mice to address the role of EGR1 in the clock function and light-induced resetting of the clock. The diurnal rhythms of expression of the clock genes BMAL1 and PER1 in the SCN were evaluated by semi-quantitative in situ hybridization. We found no difference in the expression of PER1 mRNA between wildtype and EGR1-deficient mice; however, the daily rhythm of BMAL1 mRNA was completely abolished in the EGR1-deficient mice...
November 14, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/29136327/long-term-follow-up-after-implantation-of-a-telemetric-intraocular-pressure-sensor-in-patients-with-glaucoma-a-safety-report
#11
Antonis Koutsonas, Peter Walter, Gernot Roessler, Niklas Plange
IMPORTANCE: To investigate the long-term safety of a novel intraocular telemetric pressure sensor. BACKGROUND: Acquisition of accurate intraocular pressure (IOP) data is vital for sufficient medical care of glaucoma patients. Non-invasive self-tonometry with a telemetric IOP sensor can provide important information regarding the individual IOP profile. DESIGN: Retrospective analysis of long-term follow-up data assessed during outpatient visits in a university hospital...
November 14, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/29134419/acute-administration-of-the-nonpathogenic-saprophytic-bacterium-mycobacterium-vaccae-induces-activation-of-serotonergic-neurons-in-the-dorsal-raphe-nucleus-and-antidepressant-like-behavior-in-association-with-mild-hypothermia
#12
Philip H Siebler, Jared D Heinze, Drake M Kienzle, Matthew W Hale, Jodi L Lukkes, Nina C Donner, Jared M Kopelman, Orlando A Rodriguez, Christopher A Lowry
Peripheral immune activation can have profound physiologic and behavioral effects. One mechanism through which immune activation may affect physiology and behavior is through actions on brainstem neuromodulatory systems, such as serotonergic systems. To test this hypothesis, in Experiment 1, adult male BALB/c mice were implanted with telemetric recording devices and then immunized with Mycobacterium vaccae NCTC 11659 (0.1 mg, s.c.; Days - 28, - 14; N = 36). On Day 1, mice received an acute challenge with M...
November 13, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/29119397/specific-features-of-electrolyte-excretion-at-the-early-stages-of-arterial-hypertension-in-shr-rats
#13
M L Blagonravov, E V Medvedeva, A A Bryk, V A Goryachev, M M Azova, E V Velichko
Daytime and nighttime systolic and diastolic BP was recorded in 23-week-old SHR and Wistar rats by telemetric monitoring. Urine concentrations of sodium, potassium, and calcium were determined in SHR rats during of light (07.00-19.00 h) and dark hours (19.00-07.00 h) at the age of 18, 19, 20, 21, 22, and 23 week; 23-week-old Wistar rats were used as the control. At early stages of the experiment, urine sodium concentration was elevated in SHR rats both at daytime and at night. Thereafter, this value declined and by 22-23 week was significantly lower than in normotensive Wistar rats, but only during daytime...
November 9, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29099402/simultaneous-monitoring-of-electroencephalographic-characteristics-in-animals-subjected-to-behavioral-tests-a-preclinical-investigation
#14
Ramakrishna Nirogi, Saivishal Daripelli, Vijay Benade, Chaitanya Tirumalasetty, Gopinadh Bhyrapuneni, Pradeep Jayarajan
Drug-induced changes in electroencephalographic (EEG) characteristics in animals may be used to predict central activity of drugs in humans. Previous studies have established that drugs affect EEG characteristics in humans and rodents in a similar manner. However, there has been little work to establish correlations between drug effects on behavioral and EEG characteristics in rats. In the current study, we have simultaneously monitored EEG characteristics during a novel object recognition task (NORT) or open field (OF) test in rats...
December 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/29066280/implantation-and-testing-of-a-novel-episcleral-pressure-transducer-a-new-approach-to-telemetric-intraocular-pressure-monitoring
#15
Siegfried Mariacher, Martina Ebner, José Hurst, Peter Szurman, Kai Januschowski
Measurement of intraocular pressure (IOP) is an essential tool in monitoring glaucoma. Single IOP assessments during clinical routine examinations represent punctual values and are not able to identify IOP fluctuations and spikes. Telemetric IOP measurements are able to monitor IOP during the day and night, and are location-independent. Six telemetric episcleral IOP sensors were investigated after minimally invasive subconjunctival implantation in 6 eyes of 6 New-Zealand-White rabbits. Three of the 4 edges of the implant were fixated intrasclerally with non-absorbable sutures...
October 21, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/29065534/development-of-a-telemetric-miniaturized-electrochemical-amperometric-analyzer
#16
Jaehyo Jung, Jihoon Lee, Siho Shin, Youn Tae Kim
In this research, we developed a portable, three-electrode electrochemical amperometric analyzer that can transmit data to a PC or a tablet via Bluetooth communication. We performed experiments using an indium tin oxide (ITO) glass electrode to confirm the performance and reliability of the analyzer. The proposed analyzer uses a current-to-voltage (I/V) converter to convert the current generated by the reduction-oxidation (redox) reaction of the buffer solution to a voltage signal. This signal is then digitized by the processor...
October 23, 2017: Sensors
https://www.readbyqxmd.com/read/29054776/icp-guided-shunt-valve-adjustments-with-the-miethke-sensor-reservoir
#17
Sebastian Antes, Axel Stadie, Simon Müller, Stefan Linsler, David Breuskin, Joachim Oertel
BACKGROUND: Telemetric intracranial pressure (ICP) monitoring seems to be a promising therapy-supporting option in shunt-treated patients. Benefits become obvious when headaches are unspecific and clinical symptoms cannot be related to possible over- or underdrainage. In this work, a new telemetric device to individually adjust shunt valves according to the ICP was evaluated. METHODS: Between December 2015 and November 2016, 25 patients with suspected suboptimal shunt valve settings underwent insertion of a telemetric ICP sensor ("Sensor Reservoir", Christoph Miethke GmbH & Co...
October 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29034618/altered-electroencephalography-spectral-profiles-in-rats-with-different-patterns-of-experimental-brain-dysplasia
#18
Michal Kielbinski, Zuzanna Setkowicz, Kinga Gzielo, Władysław Węglarz, Krzysztof Janeczko
BACKGROUND: Malformations of cortical development, such as focal cortical dysplasia, are commonly associated with intractable epilepsy. Multiple animal models were created in attempts to recapitulate features of human malformations of cortical development. These manipulations give rise to various focal or diffuse anatomical abnormalities, accompanied by altered susceptibility to epileptic seizures. Both in humans and in models of dysplasia, the question of timing of the initiating insult is important...
October 16, 2017: Birth Defects Research
https://www.readbyqxmd.com/read/29021091/an-evaluation-of-multiple-algorithms-for-the-measurement-of-the-heart-rate-corrected-jtpeak-interval
#19
Jean-Philippe Couderc, Shiyang Ma, Alex Page, Connor Besaw, Jean Xia, W Brian Chiu, Johan de Bie, Jose Vicente, Martino Vaglio, Fabio Badilini, Saeed Babaeizadeh, Cheng-Hao Simon Chien, Mathias Baumert
Interest in the effects of drugs on the heart rate-corrected JTpeak (JTpc) interval from the body-surface ECG has spawned an increasing number of scientific investigations in the field of regulatory sciences, and more specifically in the context of the Comprehensive in vitro Proarrhythmia Assay (CiPA) initiative. We conducted a novel initiative to evaluate the role of automatic JTpc measurement technologies by comparing their ability to distinguish multi- from single-channel blocking drugs. A set of 5232 ECGs was shared by the FDA (through the Telemetric and Holter ECG Warehouse) with 3 ECG device companies (AMPS, Mortara, and Philips)...
November 2017: Journal of Electrocardiology
https://www.readbyqxmd.com/read/28987900/cardiorespiratory-responses-to-pool-floor-walking-in-people-poststroke
#20
Brenda Jeng, Takuto Fujii, Hyosok Lim, Konstantinos Vrongistinos, Taeyou Jung
OBJECTIVE: To compare cardiorespiratory responses between pool floor walking and overground walking (OW) in people poststroke. DESIGN: Cross-sectional study. SETTING: University-based therapeutic exercise facility. PARTICIPANTS: Participants (N=28) were comprised of 14 community-dwelling individuals poststroke (5.57±3.57y poststroke) and 14 age- and sex-matched healthy adults (mean age, 58.00±15.51y; male/female ratio, 9:5)...
October 5, 2017: Archives of Physical Medicine and Rehabilitation
keyword
keyword
84983
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"