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https://www.readbyqxmd.com/read/29245171/effects-of-atorvastatin-on-autophagy-in-skeletal-muscles-of-diabetic-rats
#1
Bingquan Yang, Jie Sun, Yang Yuan, Zilin Sun
AIMS/INTRODUCTION: Atorvastatin is usually used to decrease the amount of fatty substances in individuals with type 2 diabetes mellitus. However, it can cause side effects, such as breakdown of skeletal muscle tissue. This study focuses on the effects of atorvastatin on autophagy of the skeletal muscles in diabetic rats. MATERIALS AND METHODS: Diabetes in rats in the diabetic (D) and atorvastatin (T) groups was induced using streptozotocin (65 mg/kg, intraperitoneal injection)...
December 15, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/29245028/on-site-evaluation-of-wagyu-beef-carcasses-based-on-the-monounsaturated-oleic-and-saturated-fatty-acid-composition-using-a-handheld-fiber-optic-near-infrared-spectrometer
#2
S Piao, T Okura, M Irie
The fat quality is an important aspect, especially for Wagyu beef. A handheld fiber-optic near-infrared spectrometer for on-site evaluation of beef fat quality was developed, and the interactance spectra of the intermuscular fat from 833 Wagyu carcasses at 12 markets were measured. The calibration model was transferred to five slave instruments using twenty-six block samples. The performance of one slave instrument was verified at five meat markets (n=360). The coefficients of determination of the slave instrument for monounsaturated, oleic, and saturated fatty acid compositions determined by gas chromatography and near-infrared measurements were 0...
November 27, 2017: Meat Science
https://www.readbyqxmd.com/read/29244887/carbon-fiber-framework-for-full-arch-implant-supported-fixed-dental-prostheses-supporting-resin-based-composite-and-lithium-disilicate-ceramic-crowns-case-report-and-description-of-features
#3
Giuseppe Castorina
This case report presents a new approach for shock-absorbing carbon-fiber composite frameworks for full-arch implant-supported fixed dental prostheses supporting resin-based and lithium disilicate ceramic crowns. It describes the characteristics of the materials used, the procedures for implementing the framework, and the requirements to achieve the best mechanical and clinical properties. The result is a full-arch prosthesis with masticatory load shock-absorption capacities, chemical bonding between materials, good esthetics, and wear similar to natural enamel...
December 15, 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29244885/effect-of-fiber-post-cementation-timing-on-the-bond-strength-of-resin-cements-in-epoxy-resin-obturated-canals
#4
Luiza Salles Alves Berti, Leandro Augusto Pinto Pereira, Vanessa Galego Arias Pecorari, Flávia Lucisano Botelho Amaral, Cecília Pedroso Turssi, Roberta Tarkany Basting, Fabiana Mantovani Gomes França
This study evaluated the influence of timing after endodontic treatment and type of resin cement used on the bond strength of fiber posts to epoxy resin-obturated canals. A total of 80 bovine incisor roots were divided into four groups (n = 20). Glass fiber posts were cemented at two different times, immediately or 7 days after endodontic treatment, using either a dual-curing resin cement (RelyX ARC, 3M ESPE) or a self-adhesive resin cement (RelyX U200, 3M ESPE). Following post cementation, the samples were cross-sectioned into slices containing root dentin, cement, and fiber post at the cervical, mid, and apical root thirds...
December 15, 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/29244883/effects-of-mechanical-repetitive-load-on-bone-quality-around-implants-in-rat-maxillae
#5
Yusuke Uto, Shinichiro Kuroshima, Takayoshi Nakano, Takuya Ishimoto, Nao Inaba, Yusuke Uchida, Takashi Sawase
Greater understanding and acceptance of the new concept "bone quality", which was proposed by the National Institutes of Health and is based on bone cells and collagen fibers, are required. The novel protein Semaphorin3A (Sema3A) is associated with osteoprotection by regulating bone cells. The aims of this study were to investigate the effects of mechanical loads on Sema3A production and bone quality based on bone cells and collagen fibers around implants in rat maxillae. Grade IV-titanium threaded implants were placed at 4 weeks post-extraction in maxillary first molars...
2017: PloS One
https://www.readbyqxmd.com/read/29244804/conditional-knockout-mice-for-the-distal-appendage-protein-cep164-reveal-its-essential-roles-in-airway-multiciliated-cell-differentiation
#6
Saul S Siller, Himanshu Sharma, Shuai Li, June Yang, Yong Zhang, Michael J Holtzman, Wipawee Winuthayanon, Holly Colognato, Bernadette C Holdener, Feng-Qian Li, Ken-Ichi Takemaru
Multiciliated cells of the airways, brain ventricles, and female reproductive tract provide the motive force for mucociliary clearance, cerebrospinal fluid circulation, and ovum transport. Despite their clear importance to human biology and health, the molecular mechanisms underlying multiciliated cell differentiation are poorly understood. Prior studies implicate the distal appendage/transition fiber protein CEP164 as a central regulator of primary ciliogenesis; however, its role in multiciliogenesis remains unknown...
December 15, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29244770/a-highly-sensitive-two-dimensional-inclinometer-based-on-two-etched-chirped-fiber-grating-arrays
#7
Hung-Ying Chang, Yu-Chung Chang, Wen-Fung Liu
We present a novel two-dimensional fiber-optic inclinometer with high sensitivity by crisscrossing two etched chirped fiber Bragg gratings (CFBG) arrays. Each array is composed of two symmetrically-arranged CFBGs. By etching away most of the claddings of the CFBGs to expose the evanescent wave, the reflection spectra are highly sensitive to the surrounding index change. When we immerse only part of the CFBG in liquid, the effective index difference induces a superposition peak in the refection spectrum. By interrogating the peak wavelengths of the CFBGs, we can deduce the tilt angle and direction simultaneously...
December 15, 2017: Sensors
https://www.readbyqxmd.com/read/29244753/identification-of-a-multicomponent-traditional-herbal-medicine-by-hplc-ms-and-electron-and-light-microscopy
#8
Ju-Han Liu, Yung-Yi Cheng, Chen-Hsi Hsieh, Tung-Hu Tsai
BACKGROUND: Commercial pharmaceutical herbal products have enabled people to take traditional Chinese medicine (TCM) in a convenient and accessible form. However, the quantity and quality should be additionally inspected. To address the issue, a combination of chemical and physical inspection methods were developed to evaluate the amount of an herbal formula, Xiang-Sha-Liu-Jun-Zi-Tang (XSLJZT), in clinical TCM practice. METHODS: A high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS) method with electrospray ionization was developed to measure the herbal biomarkers of guanosine, atractylenolide III, glycyrrhizic acid, dehydrocostus lactone, hesperidin, and oleanolic acid from XSLJZT...
December 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29244718/prebiotic-dietary-fiber-and-gut-health-comparing-the-in-vitro-fermentations-of-beta-glucan-inulin-and-xylooligosaccharide
#9
Justin L Carlson, Jennifer M Erickson, Julie M Hess, Trevor J Gould, Joanne L Slavin
Prebiotic dietary fiber supplements are commonly consumed to help meet fiber recommendations and improve gastrointestinal health by stimulating beneficial bacteria and the production of short-chain fatty acids (SCFAs), molecules beneficial to host health. The objective of this research project was to compare potential prebiotic effects and fermentability of five commonly consumed fibers using an in vitro fermentation system measuring changes in fecal microbiota, total gas production and formation of common SCFAs...
December 15, 2017: Nutrients
https://www.readbyqxmd.com/read/29244245/substance-p-in-dorsal-root-ganglion-neurons-in-young-and-adult-rats-after-nociceptive-stimulation-during-the-neonatal-period
#10
Ana Leda Bertoncini Simões, Greice Anne Rodrigues Silva, Carolina Giorgetto, Elisabete de Cassia do Carmo-Campos, Fernando José Dias, Valéria Paula Sassoli Fazan
The nervous system is highly plastic during the neonatal period, being sensitive to noxious stimuli, which may cause short- and long-term pain responsivity changes. Understanding plasticity in peripheral pain pathways is crucial, particularly when the nervous system is still under development and remodeling process. Substance P (SP) is widely used as a marker for peripheral neurons with unmyelinated and small myelinated fibers. We investigated the number of SP immunoreactive neurons in the dorsal root ganglion (DRG) of male and female Wistar rats, 15 and 180 days after nociceptive stimulation during the neonatal period...
December 15, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29244023/osteocalcin-expressing-cells-from-tendon-sheaths-in-mice-contribute-to-tendon-repair-by-activating-hedgehog-signaling
#11
Yi Wang, Xu Zhang, Huihui Huang, Yin Xia, YiFei Yao, Arthur Fuk-Tat Mak, Patrick Shu-Hang Yung, Kai-Ming Chan, Li Wang, Chenglin Zhang, Yu Huang, Kingston King-Lun Mak
Both extrinsic and intrinsic tissues contribute to tendon repair, but the origin and molecular functions of extrinsic tissues in tendon repair are not fully understood. Here we show that tendon sheath cells harbor stem/progenitor cell properties and contribute to tendon repair by activating Hedgehog signaling. We found that Osteocalcin (Bglap) can be used as an adult tendon-sheath-specific marker in mice. Lineage tracing experiments show that Bglap-expressing cells in adult sheath tissues possess clonogenic and multipotent properties comparable to those of stem/progenitor cells isolated from tendon fibers...
December 15, 2017: ELife
https://www.readbyqxmd.com/read/29243906/realizing-high-capacitance-and-rate-capability-in-polyaniline-by-enhancing-the-electrochemical-surface-area-through-induction-of-superhydrophilicity
#12
Roby Soni, Varchaswal Kashyap, Divya Nagaraju, Sreekumar Kurungot
Polyaniline (PANI) as a pseudocapacitive material has very high theoretical capacitance of 2000 F g-1. However, its practical capacitance has been limited by low electrochemical surface area and unfavorable wettability towards aqueous electrolytes. This work deals with a strategy wherein high electrochemical surface area of PANI has been achieved by the induction of superhydrophilicity together with the alignment of PANI exclusively on the surface of carbon fibers as a thin layer to form a hybrid assembly. Superhydrophilicity is induced by electrochemical functionalization of the Toray carbon paper, which further induces superhydrophilicity to the electrodeposited PANI layer on the paper and, thereby, ensuring high electrode-electrolyte interface...
December 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29243808/the-role-of-the-dynamic-sensory-perception-in-the-reformulation-of-shakes-use-of-tds-for-studying-the-effect-of-milk-fiber-and-flavor-addition
#13
Barbara Tomadoni, Susana Fiszman, María R Moreira, Amparo Tarrega
Various factors need to be taken into account when reformulating a food or beverage. The food components, not only macronutrients but also minor ingredients such as flavoring agents, could affect the perception of the sensory sensations, importantly their dynamic aspects, as rising and duration, which are not normally considered. The novelty of this approach is the study of the effects of the addition of several ingredients (fiber, extra milk powder, and strawberry flavoring) on the dynamic perception of a food item (strawberry shakes) using the temporal dominance of sensations (TDS) technique...
December 15, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29243588/dynamic-modulation-of-activity-in-cerebellar-nuclei-neurons-during-pavlovian-eyeblink-conditioning-in-mice
#14
Michiel Manuel Ten Brinke, Shane Heiney, Xiaolu Wang, Martina Proietti-Onori, Henk-Jan Boele, Jacob Bakermans, Javier F Medina, Zhenyu Gao, Chris I De Zeeuw
While research on the cerebellar cortex is crystallizing our understanding of its function in learning behavior, many questions surrounding its downstream targets remain. Here, we evaluate the dynamics of cerebellar interpositus nucleus (IpN) neurons over the course of Pavlovian eyeblink conditioning. A diverse range of learning-induced neuronal responses was observed, including increases and decreases in activity during the generation of conditioned blinks. Trial-by-trial correlational analysis and optogenetic manipulation demonstrate that facilitation in the IpN drives the eyelid movements...
December 15, 2017: ELife
https://www.readbyqxmd.com/read/29243556/-preferences-of-aaa-aag-codon-recognition-by-modified-nucleosides-%C3%AF-m5s2u34-and-t6a37-present-in-trnalys
#15
Kailas D Sonawane, Asmita S Kamble, Prayagraj M Fandilolu
Deficiency of 5-taurinomethyl-2-thiouridine, τm5s2U at the 34th 'wobble' position in tRNALys causes MERRF (Myoclonic Epilepsy with Ragged Red Fibers), a neuromuscular disease. This modified nucleoside of mt tRNALys, recognizes AAA/AAG codons during protein biosynthesis process. Its preference to identify cognate codons has not been studied at the atomic level. Hence, multiple MD simulations of various molecular models of anticodon stem loop (ASL) of mt tRNALys in presence and absence of τm5s2U34 and N6-threonylcarbamoyl adenosine (t6A37) along with AAA and AAG codons have been accomplished...
December 15, 2017: Journal of Biomolecular Structure & Dynamics
https://www.readbyqxmd.com/read/29243477/electrochemical-selectivity-achieved-using-a-double-voltammetric-waveform-and-partial-least-squares-regression-differentiating-endogenous-hydrogen-peroxide-fluctuations-from-shifts-in-ph
#16
Carl J Meunier, Edwin C Mitchell, James G Roberts, Jonathan Vincent Toups, Gregory S McCarty, Leslie A Sombers
Hydrogen peroxide (H2O2) is a reactive oxygen species that serves as an important signaling molecule in normal brain function. At the same time, excessive H2O2 concentrations contribute to a myriad of pathological consequences resulting from oxidative stress. Studies to elucidate the diverse roles that H2O2 plays in complex biological environments have been hindered by the lack of robust methods for probing dynamic H2O2 fluctuations in living systems with molecular specificity. Background-subtracted fast-scan cyclic voltammetry (FSCV) at carbon-fiber microelectrodes provides a method of detecting rapid H2O2 fluctuations with high temporal and spatial resolution in brain tissue...
December 15, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29243436/-effect-of-neoflavonoid-latifolin-isolated-from-dalbergia-odorifera-on-acute-myocardial-ischemia-in-rats-and-its-mechanism-of-nrf2-signaling-pathway
#17
Xue-Liang Li, Lan-Ying Chen, Zi-Yi Guan, Yao Luo, Ya-Ru Cui, Rong-Hua Liu, Feng Shao, Ding-Qing Wang
The present study was designed to evaluate the cardioprotective effect of latifolin on pituitrin(Pit) or isoproterenol(ISO)-induced myocardial injury in rats, and further investigate its underlying mechanisms. Rats were administrated sublingually with pituitrin or subcutaneously with isoproterenol to induce acute myocardial ischemia in rats, and lead II electrocardiograph was recorded. In rats with isoproterenol, ELISA assay or colorimetric method was used to detect the content or activity of myocardial injury markers in serum, and the SOD activity and MDA content in myocardium were detected by colorimetric assay; histopathological examination was conducted by HE staining; the frozen section of myocardial tissues was used for DCFH-DA fluorescent staining to detect the content of ROS in myocardium; Western blot was used to detect the protein expression levels of Nrf2, Keap1, HO-1 and NQO1 in myocardium...
October 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29243415/compact-dual-mode-diffuse-optical-system-for-blood-perfusion-monitoring-in-a-porcine-model-of-microvascular-tissue-flaps
#18
Seung Yup Lee, Julia M Pakela, Michael C Helton, Karthik Vishwanath, Yooree G Chung, Noah J Kolodziejski, Christopher J Stapels, Daniel R McAdams, Daniel E Fernandez, James F Christian, Jameson O'Reilly, Dana Farkas, Brent B Ward, Stephen E Feinberg, Mary-Ann Mycek
In reconstructive surgery, the ability to detect blood flow interruptions to grafted tissue represents a critical step in preventing postsurgical complications. We have developed and pilot tested a compact, fiber-based device that combines two complimentary modalities-diffuse correlation spectroscopy (DCS) and diffuse reflectance spectroscopy-to quantitatively monitor blood perfusion. We present a proof-of-concept study on an in vivo porcine model (n=8). With a controllable arterial blood flow supply, occlusion studies (n=4) were performed on surgically isolated free flaps while the device simultaneously monitored blood flow through the supplying artery as well as flap perfusion from three orientations: the distal side of the flap and two transdermal channels...
December 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/29243362/effect-of-fructo-oligosaccharides-on-nutrient-digestibility-and-digesta-retention-time-in-adult-guinea-pigs
#19
Kiyonori Kawasaki, Xiao Min, Ei Sakaguchi
A previous study suggested that addition of fructo-oligosaccharides (FOS) to the diet improved nitrogen (N) utilization and decreased acid detergent fiber (ADF) digestibility in guinea pigs. The present study was conducted to clarify the relationship between ADF digestibility and gastrointestinal mean retention time (MRT) in guinea pigs under FOS supplementation. Adult male guinea pigs were fed a commercial diet (50 g/day) with either 5% glucose (glucose group) or 5% FOS (FOS group) for 12 days in individual metabolism cages...
December 15, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/29243352/a-review-on-gradient-hydrogel-fiber-scaffolds-for-osteochondral-regeneration
#20
REVIEW
Sajedeh Khorshidi, Akbar Karkhaneh
Osteochondral tissue regeneration is a complicated field due to the distinct properties and healing potential of osseous and chondral phases. In a natural osteochondral region, the composition, mechanics and structure vary smoothly from bony to cartilaginous phase. Therefore, a homogeneous scaffold cannot satisfy the complexity of the osteochondral matrix. In essence, a natural extracellular matrix (ECM) is composed of fibrous proteins elongated into a gelatinous background. A hydrogel/fiber scaffold possessing gradient in both phases would be of the utmost interest to imitate tissue arrangement of a native osteochondral interface...
December 15, 2017: Journal of Tissue Engineering and Regenerative Medicine
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