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Temperature skin

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https://www.readbyqxmd.com/read/28732130/abnormalities-in-the-24-hour-rhythm-of-skin-temperature-in-cirrhosis-sleep-wake-and-general-clinical-implications
#1
Maria Garrido, Desy Saccardo, Michele De Rui, Elia Vettore, Alberto Verardo, Paolo Carraro, Nicola Di Vitofrancesco, Ali R Mani, Paolo Angeli, Massimo Bolognesi, Sara Montagnese
BACKGROUND & AIMS: Sleep preparation/onset are associated with peripheral vasodilatation and a decrease in body temperature. The hyperdynamic syndrome exhibited by patients with cirrhosis may impinge on sleep preparation, thus contributing to their difficulties falling asleep. The aim of this study was the assessment of skin temperature, in relation to sleep-wake patterns, in patients with cirrhosis. METHODS: Fifty three subjects were initially recruited, and 46 completed the study...
July 21, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28729839/the-effect-of-low-ambient-relative-humidity-on-physical-performance-and-perceptual-responses-during-load-carriage
#2
Igor B Mekjavic, Ursa Ciuha, Mikael Grönkvist, Ola Eiken
Introduction: The study evaluated the effect of low ambient relative humidity on physical performance and perceptual responses during load carriage in a hot environment. Methods: Ten heat-unacclimatized male subjects participated in three 130-min trials, during which they walked on a treadmill, carrying a load of ~35 kg, at a speed of 3.2 km.h(-1), with an incident wind at the same velocity and ambient temperature at 45°C. Each trial commenced with a 10-min baseline at 20°C and 50% relative humidity (RH), the subjects transferred to a climatic chamber and commenced their simulated hike, comprising two 50-min walks separated by a 20-min rest period...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28728403/newborn-traits-associated-with-pre-weaning-growth-and-survival-in-piglets
#3
Morakot Nuntapaitoon, Ramon Muns, Padet Tummaruk
Objective: Piglet pre-weaning mortality is an important variable indicating the efficacy of farrowing management and animal well-being during lactation. The present study determined the association of newborn traits measured soon after birth with piglet pre-weaning mortality and growth. Methods: In total, 805 piglets born from 57 multiparous sows were investigated. Their blood oxygen saturation, blood glucose and rectal temperature at 24 h after birth (RT24h) were monitored...
July 17, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28727235/thermal-imaging-and-dermoscopy-for-detecting-inflammation-in-frontal-fibrosing-alopecia
#4
Anna Lis-Święty, Bartosz Miziołek, Irmina Ranosz-Janicka, Grażyna Bierzyńska-Macyszyn, Ligia Brzezińska-Wcisło
BACKGROUND: Frontal fibrosing alopecia (FFA) is an inflammatory condition of the scalp, which leads to scarring and slowly progressive recession of frontotemporal and/or frontoparietal hairline. Choice of FFA treatment is highly dependent on accurate assessment of disease phase, as medical treatments are effective only during the initial inflammatory stage. METHODS: To objectively quantify the activity of the inflammatory process in FFA, 22 female patients were examined by both infrared thermography and optical dermoscopy before tissue sampling...
July 20, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28724983/bio-inspired-interlocking-random-3-d-structures-for-tactile-and-thermal-sensing
#5
Long Pu, Rohit Saraf, Vivek Maheshwari
Hierarchical nanostructures are tailored and used routinely in nature to accomplish tasks with high performance. Their formation in nature is accomplished without the use of any patterning process. Inspired by the performance of such structures, we have combined 2-D nanosheets with 1-D nanorods for functioning as electronic skin. These structures made in high density without any patterning process can be easily assembled over large areas. They can sense pressures as low as 0.4 Pa, with a response time in milliseconds...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28723348/central-serotonin-attenuates-lps-induced-systemic-inflammation
#6
Clarissa M D Mota, Caroline Rodrigues-Santos, Rodrigo A R Fernández, Ruither O G Carolino, José Antunes-Rodrigues, Janete A Anselmo-Franci, Luiz G S Branco
Serotonin (5-HT) is a neuromodulator involved in several central-mediated mechanisms, such as endocrine processes, behavior, and sleep. Dysfunction of the serotonergic system is mainly linked to psychiatric disorders, but emerging evidence suggests that immune system activation may also alter brain 5-HT signaling. However, whether central 5-HT modulates systemic inflammation (SI) remains unknown. For this purpose, male Wistar rats (280-350 g, 8-9 weeks) were submitted to the experimental protocols beginning between 9 and 10 AM with the performance of injections...
July 16, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28723207/wearable-flexible-and-multifunctional-healthcare-device-with-an-isfet-chemical-sensor-for-simultaneous-sweat-ph-and-skin-temperature-monitoring
#7
Shogo Nakata, Takayuki Arie, Seiji Akita, Kuniharu Takei
Real-time daily healthcare monitoring may increase the chances of predicting and diagnosing diseases in their early stages which, currently, occurs most frequently during medical check-ups. Next-generation noninvasive healthcare devices, such as flexible multifunctional sensor sheets designed to be worn on skin, are considered to be highly suitable candidates for continuous real-time health monitoring. For healthcare applications, acquiring data on the chemical state of the body, alongside physical characteristics such as body temperature and activity, are extremely important for predicting and identifying potential health conditions...
March 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28723074/paper-based-bimodal-sensor-for-electronic-skin-applications
#8
Minhyun Jung, Kyungkwan Kim, Bumjin Kim, Haena Cheong, Kwanwoo Shin, Oh-Sun Kwon, Jong-Jin Park, Sanghun Jeon
We present the development of a flexible bimodal sensor using a paper platform and ink-jet printing method, which are suited for low-cost fabrication processes and realization of flexible devices. In this study, we employed a vertically stacked bimodal device architecture in which a temperature sensor is stacked on top of a pressure sensor and operated on different principles, allowing the minimization of interference effects. For the temperature sensor placed in the top layer, we used the thermoelectric effect and formed a closed-loop thermocouple composed of two different printable inks: conductive PEDOT:PSS and silver nanoparticles on a flexible paper platform, and obtained temperature-sensing capability over a wide range (150 ℃)...
July 19, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28721726/3d-printed-earable-smart-devices-for-real-time-detection-of-core-body-temperature
#9
Hiroki Ota, Minghan Chao, Yuji Gao, Eric Wu, Li-Chia Tai, Kevin Chen, Yasutomo Matsuoka, Kosuke Iwai, Hossain M Fahad, Wei Gao, Hnin Yin Yin Nyein, Liwei Lin, Ali Javey
Real-time detection of basic physiological parameters such as blood pressure and heart rate is an important target in wearable smart devices for healthcare. Among these, the core body temperature is one of the most important basic medical indicators of fever, insomnia, fatigue, metabolic functionality, and depression. However, traditional wearable temperature sensors are based upon the measurement of skin temperature, which can vary dramatically from the true core body temperature. Here, we demonstrate a three-dimensional (3D) printed wearable "earable" smart device that is designed to be worn on the ear to track core body temperature from the tympanic membrane (i...
July 19, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28720834/chemical-inhibitors-of-candida-albicans-hyphal-morphogenesis-target-endocytosis
#10
Hagit Bar-Yosef, Nora Vivanco Gonzalez, Shay Ben-Aroya, Stephen J Kron, Daniel Kornitzer
Candida albicans is an opportunistic pathogen, typically found as a benign commensal yeast living on skin and mucosa, but poised to invade injured tissue to cause local infections. In debilitated and immunocompromised individuals, C. albicans may spread to cause life-threatening systemic infections. Upon contact with serum and at body temperature, C. albicans performs a regulated switch to filamentous morphology, characterized by emergence of a germ tube from the yeast cell followed by mold-like growth of branching hyphae...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28719739/graphene-electronic-tattoo-sensors
#11
Shideh Kabiri Ameri, Rebecca Ho, Hongwoo Jang, Li Tao, Youhua Wang, Liu Wang, David M Schnyer, Deji Akinwande, Nanshu Lu
Tattoo-like epidermal sensors are an emerging class of truly wearable electronics owing to their thinness and softness. While most of them are based on thin metal films, silicon membrane, or nanoparticle-based printable inks, we report a sub-micron thick, multimodal electronic tattoo sensors that are made of graphene. The graphene electronic tattoo (GET) is designed with filamentary serpentines and fabricated by a cost- and time-effective "wet transfer, dry patterning" method. It has a total thickness of 463 ± 30 nm, an optical transparency of ~85%, and a stretchability of more than 40%...
July 18, 2017: ACS Nano
https://www.readbyqxmd.com/read/28717317/effect-of-season-on-physiological-biochemical-hormonal-and-oxidative-stress-parameters-of-indigenous-sheep
#12
Sawankumar D Rathwa, A A Vasava, M M Pathan, S P Madhira, Y G Patel, A M Pande
AIM: This study was conducted to evaluate the impact of summer and winter season on physiological, biochemical, hormonal, and antioxidant parameters in Indigenous sheep. MATERIALS AND METHODS: The research was carried out during summer and winter season. 8 adult apparently healthy female sheep (aged 2-4 years) of similar physiological status were selected. Daily ambient temperature and relative humidity were recorded to calculate the temperature-humidity index (THI)...
June 2017: Veterinary World
https://www.readbyqxmd.com/read/28713519/common-solvents-for-making-extraction-of-allergenic-proteins-from-plants-pollens-for-prick-tests-and-related-factors-a-technical-review
#13
REVIEW
Hassan Mansouritorghabeh, Farahzad Jabbari-Azad, Abdolreza Varasteh, Mojtaba Sankian, Reza Farid-Hosseini
Collecting information on influencing factors in developing consistent and high-quality extracts results in accurate diagnosis and effective treatment of type I allergy (IgE mediated). Furthermore, considering that a large number of allergens are currently in practice, any attempt to develop a more effective procedure for preparing extract may be useful. Nowadays, different saline solvents, temperature, incubation time, and PH are being incorporated for preparing allergen extracts. The objective of the current study was to clear and address the commonest of solvent buffers and allied conditions for making extracts of pollens of grasses, trees, and weeds...
May 2017: Electronic Physician
https://www.readbyqxmd.com/read/28713358/aquarium-viromes-viromes-of-human-managed-aquatic-systems
#14
Yiseul Kim, William Van Bonn, Tiong G Aw, Joan B Rose
An aquarium ecosystem is home to many animal species providing conditions similar to native aquatic habitats but under highly controlled management. With a growing interest in understanding the interaction of microbiomes and resident animal health within aquarium environments, we undertook a metagenomic survey of viromes in seven aquarium systems with differing physicochemical and resident animal profiles. Our results show that a diverse array of viruses was represented in aquarium viromes, many of which were widespread in different aquarium systems (27 common viral families in all of the aquarium systems)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28713241/cold-temperature-encoding-by-cutaneous-trpa1-and-trpm8-carrying-fibers-in-the-mouse
#15
Zoltan Winter, Philipp Gruschwitz, Stephanie Eger, Filip Touska, Katharina Zimmermann
Previous research identified TRPM8 and TRPA1 cold transducers with separate functions, one being functional in the non-noxious range and the second one being a nociceptive transducer. TRPM8-deficient mice present overt deficits in the detection of environmental cool, but not a lack of cold avoidance and TRPA1-deficient mice show clear deficits in some cold nocifensive assays. The extent of TRPA1's contribution to cold sensing in vivo is still unclear, because mice lacking both TRPM8 and TRPA1 (DKO) were described with unchanged cold avoidance from TRPM8(-/-) based on a two-temperature-choice assay and by c-fos measurement...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28712930/disseminated-mycobacterium-kansasii-infection-with-cutaneous-lesions-in-an-immunocompetent-patient
#16
Miaomiao Zhang, Mei Feng, Jian-Qing He
We reported a case of disseminated Mycobacterium Kansasii (M. kansasii) infections involving skin tissue in a 57-year-old male farmer for recurrent fever, respiratory syndromes and skin lesions. Positive findings of syndromes, laboratory examinations and M. kansasii identified in the puncture fluid indicated the diagnosis of disseminated M. kansasii infections involving skin/soft tissue, pulmonary and mediastinal lymph nodes. After applying the standard HRE regime (isoniazid (300mg/d), rifampicin (600mg/d), and ethambutol (750mg/d)), the patient's temperature normalized and symptoms relieved gradually...
July 13, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28712864/thermal-comfort-zone-of-the-hands-feet-and-head-in-males-and-females
#17
Urša Ciuha, Igor B Mekjavic
INTRODUCTION: The present study compared the thermal comfort zones (TCZ) of the hands, feet and head in eight male and eight female participants, assessed with water-perfused segments (WPS). METHODS: On separate occasions, and separated by a minimum of one day, participants were requested to regulate the temperature of three distal skin regions (hands, feet and head) within their TCZ. On each occasion they donned a specific water-perfused segment (WPS), either gloves, socks or hood for assessing the TCZ of the hands, feet and head, respectively...
July 13, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28711641/tacrolimus-loaded-biocompatible-lecithin-based-microemulsions-with-improved-skin-penetration-structure-characterization-and-in-vitro-in-vivo-performances
#18
Vedrana Savić, Marija Todosijević, Tanja Ilić, Milica Lukić, Evgenia Mitsou, Vassiliki Papadimitriou, Spyridon Avramiotis, Bojan Marković, Nebojša Cekić, Snežana Savić
In order to improve skin penetration of tacrolimus we aimed to develop potentially non-irritant, lecithin-based microemulsions containing ethanol, isopropanol and/or propylene glycol as cosurfactants, varying caprylic/capric triglycerides and propylene glycol monocaprylate as oil phase. The influence of excipients on the size of microemulsion region in pseudo-ternary phase diagrams and their ability to form different types of microemulsions was evaluated. The comprehensive physicochemical characterization of microemulsions and the evaluation of their structure was performed, while the localization of tacrolimus in microemulsions was further investigated using electron paramagnetic resonance spectroscopy...
July 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28705994/wearable-brain-imaging-with-multi-modal-physiological-recording
#19
Gary E Strangman, Vladimir Ivkovic, Quan Zhang
The brain is a central component of cognitive and physical human performance. Measures including functional brain activation, cerebral perfusion, cerebral oxygenation, evoked electrical responses, and resting hemodynamic and electrical activity are all related to, or can predict health status or performance decrements. However, measuring brain physiology typically requires large, stationary machines that are not suitable for mobile or self-monitoring. Moreover, when individuals are ambulatory, systemic physiological fluctuations-e...
July 13, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28704150/measurement-of-ph-exudate-composition-and-temperature-in-wound-healing-a-systematic-review
#20
G Power, Z Moore, T O'Connor
OBJECTIVE: To assess the potential of measurements of pH, exudate composition and temperature in wounds to predict healing outcomes and to identify the methods that are employed to measure them. METHOD: A systematic review based on the outcomes of a search strategy of quantitative primary research published in the English language was conducted. Inclusion criteria limited studies to those involving in vivo and human participants with an existing or intentionally provoked wound, defined as 'a break in the epithelial integrity of the skin', and excluded in vitro and animal studies...
July 2, 2017: Journal of Wound Care
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