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Chinese Journal of Physiology

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https://www.readbyqxmd.com/read/28468030/higher-dheas-levels-associated-with-long-term-practicing-of-tai-chi
#1
Hung-Min Lai, Mark Shui-Yu Liu, Ting-Ju Lin, Ying-Lan Tsai, Eileen Jea Chien
Tai Chi has many benefits for middle-aged/older individuals including improvements to muscle strength and various body lipid components. DHEAS and testosterone have anti-obesity/anti-aging characteristics and also improve libido, vitality and immunity levels. Thus, the aim of the present study was to investigate the differences between middle-aged Tai Chi practitioners (n = 17) and sedentary individuals (n = 17) in terms of leg strength, blood levels of cholesterol, triglyceride, HDL, as well as DHEAS, testosterone and cortisol...
April 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28468029/effect-of-protriptyline-on-ca%C3%A2-%C3%A2-%C2%BA-i-and-viability-in-mdck-renal-tubular-cells
#2
He-Hsiung Cheng, Chiang-Ting Chou, Wei-Zhe Liang, Chun-Chi Kuo, Pochuen Shieh, Jue-Long Wang, Chung-Ren Jan
Protriptyline has been used as an antidepressant. Clinically it has been prescribed in the auxiliary treatment of cancer patients. However, its effect on Ca²⁺ signaling and related physiology is unknown in renal cells. This study examined the effect of protriptyline on cytosolic free Ca²⁺ concentrations ([Ca²⁺]i) and viability in Madin-Darby canine kidney (MDCK) tubular cells. Protriptyline induced [Ca²⁺]i rises concentration-dependently. The response was reduced by 20% by removing extracellular Ca²⁺...
April 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28468028/effects-of-acute-administration-of-adipokinetic-hormone-on-depression-anxiety-pain-locomotion-and-memory-in-mice
#3
Oguz Mutlu, Guner Ulak, Furuzan Akar, Faruk Erden, Ipek Komsuoglu Celikyurt, Emine Bektas, Pelin Tanyeri, Havva Kaya
The neurosecretory cells in the corpus cardiacum of insects synthesize a set of hormones that are called adipokinetic, hypertrehalosemic or hyperprolinemic depending on the insect in question. They are the Adipokinetic Hormone/Red Pigment-Concentrating Hormone (AKH/RPCH) family of peptides. The present study investigated the effects of acute administration of Locusta Migratoria (Locmi-AKHII) and Anax Imperator (Anaim-AKH) on depression, anxiety, pain (analgesy), locomotion and memory in mice in forced swimming (FST), elevated plus maze (EPM), hot plate, locomotor activity and passive avoidance tests...
April 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28466626/stimulatory-effect-of-food-restriction-on-the-steroidogenesis-of-aldosterone-in-ovariectomized-rats
#4
Mei-Mei Kau, Ching-Han Yu, Shiow-Chwen Tsai, Jiing-Rong Wang, Paulus S. Wang
Food or calorie restriction (FR or CR) induces several physiological changes including weight loss, metabolic adaptations, mineral and hormonal changes. However, the effects of FR on aldosterone steroidogenesis in zona glomerulosa (ZG) cells have not been elucidated. Therefore, the present study was designed to investigate the effects of FR on aldosterone secretion and the involved mechanisms in ovariectomized (Ovx) rats. Ovx rats were divided into ad libitum fed (control) and FR groups. The FR rats exhibited decreased body weight, water intake, urine flow, sodium excretion and increased plasma aldosterone in comparison with control rats...
April 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28464602/attenuation-of-high-glucose-induced-rat-cardiomyocyte-apoptosis-by-exendin-4-via-intervention-of-ho-1-nrf-2-and-the-pi3k-akt-signaling-pathway
#5
Shu-Mei Zhao, Hong-Li Gao, Yong-Liang Wang, Qing Xu, Chun-Yan Guo
Exendin-4, a glucagon-like peptide-1 receptor agonist, demonstrated cytoprotective actions beyond glycemic control in recent studies. The aims of the present study were to investigate the effects of exendin-4 on high glucose (HG)-induced cardiomyocyte apoptosis and the possible mechanisms. Rat cardiomyocytes were divided into 3 groups: normal glucose group (NG group), HG group and HG +exendin-4 group (HG+Ex Group). Cardiomyocyte apoptosis was evaluated by double-staining with annexin V-fluorescein isothiocyanate (FITC)/propidium iodide (PI) and flow cytometry...
April 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28464601/discrimination-of-cd44-and-oct3-4-expression-in-pancreatic-adenocarcinoma-from-benign-pancreatic-ducts-in-small-biopsy-specimens
#6
Ching-Chang Lee, Wu-Hsien Kuo, Chih-Kung Lin, Hong-Wei Gao, Wen-Chiuan Tsai
Cluster of differentiation 44 (CD44) and octamer-binding transcription factor 3/4 (Oct3/4) are important factors influencing cancer stem cell (CSC) development, but their clinical applications on pancreatic cancer are still unknown. Here, we tested the hypothesis that expression of CD44 and Oct3/4 correlates with the clinicopathological parameters of pancreatic ductal adenocarcinomas (PDACs). Firstly, data on the mRNA expression levels in PDACs and normal pancreatic tissues were collected from Gene Expression Omnibus (GEO) repository datasets...
April 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28052647/the-modulative-effects-of-microcurrent-electrical-nerve-stimulation-on-diabetic-mice
#7
Wen-Ching Huang, Wen-Chieh Chang, Yi-Ju Hsu, Chun-Feng Huang, Chi-Chang Huang, Cheng-Yan Kao, Che-Li Lin
Diabetes (one of non-communicable diseases) is serious due to its complications, such like, cardiovascular ailments, neuropathy, nephropathy, retinopathy, wound gangrene and sexual impotence. Diabetes and associated chronic conditions are rapidly emerging as major health problems. In clinical, there were different drugs for diabetes treatment on different mechanisms. However, there were limited studies on the efficacy of electric stimulations on diabetes therapeutic application. In current study, we try to evaluate the effect of microcurrent electrical nerve stimulator (MENS) on diabetes modulation as an alternative medicine...
February 28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28052646/ameliorative-potentials-of-quercetin-against-lead-induced-hematological-and-testicular-alterations-in-albino-rats
#8
Mohammed A. Al-Omair, Azza Sedky, Awatef Ali, Hany Elsawy
Lead is one of the oldest environmental and occupational toxins. Health hazards from increased lead exposure as a result of industrial and environmental pollution are recognized. The aim of the present study was to investigate the protective effects of quercetin as a model of an antioxidant drug against the toxic effects of lead acetate on the blood and the testis of rats. The lead concentrations were determined in blood and the testis. Testosterone (T), luteinizing hormone (LH) and follicle stimulating hormone (FSH) were assessed in serum...
February 28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28052645/double-labeling-of-vagal-preganglionic-and-sympathetic-postganglionic-fibers-in-celiac-ganglion-superior-mesenteric-arteries-and-myenteric-plexus
#9
Shi-Jane Ting, Chih-Kuan Kao, Feng-Bin Wang
Sympathetic efferents regulate the “fight-or-flight” response and sympathetic and vagal fibers have been suggested to retrogradely and centrally spread pathogens associated with Parkinson’s disease. To examine the arrangement of the vagal and sympathetic motor fibers in the celiac ganglion (CG), gastrointestinal tract, and along the superior mesenteric artery and its sub-branches, we double-labeled the vagal efferents by injecting Dextran-Texas Red into the dorsal motor nucleus of the vagus and the sympathetic postganglionics with tyrosine hydroxylase immunohistochemistry in male Sprague-Dawley rats (n = 18)...
February 28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28052644/effect-of-thymol-on-ca%C3%A2-%C3%A2-%C2%BA-homeostasis-and-viability-in-pc3-human-prostate-cancer-cells
#10
Jeng-Hsien Yeh, Chiang-Ting Chou, I-Shu Chen, Ti Lu, Ko-Long Lin, Chia-Cheng Yu, Wei-Zhe Liang, Hong-Tai Chang, Chun-Chi Kuo, Chin-Man Ho, Wen-Teng Chang, Pochuen Shieh, Chung-Ren Jan
Thymol is a phenolic compound that affects physiology in different cell models. However, whether thymol affects Ca²⁺ homeostasis in prostate cancer cells is unknown. The action of this compound on cytosolic Ca²⁺ concentrations ([Ca²⁺]i) and viability in PC3 human prostate cancer cells was explored. The results show that thymol at concentrations of 100-1500 μM caused [Ca²⁺]i rises in a concentration-dependent manner. Removal of extracellular Ca²⁺ reduced thymol’s effect by approximately 80%...
February 28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28052643/regulation-of-blood-glucose-level-by-kainic-acid-in-mice-involvement-of-glucocorticoid-system-and-non-nmda-receptors
#11
Chea-Ha Kim, Soo-Hyun Park, Yun-Beom Sim, Sung-Su Kim, Jun-Sub Jung, Naveen Sharma, Hong-Won Suh
Kainic acid (KA) is a well-known excitatory neurotoxic substance. In the present study, effects of KA-injected intraperitoneally (i.p.), intracerebroventricularly (i.c.v.) or intrathecally (i.t.) on the blood glucose level were investigated in ICR mice. We found that KA administered intraperitoneally (i.p.), intracerebroventricularly (i.c.v.) or intrathecally (i.t.) increased the blood glucose and corticosterone levels, suggesting that KA-induced hyperglycemia appeared to be due to increased blood corticosterone level...
February 28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28052642/differences-in-age-of-peak-marathon-performance-between-mountain-and-city-marathon-running-the-%C3%A2-jungfrau-marathon%C3%A2-in-switzerland
#12
Beat Knechtle, Pantelis Theodoros Nikolaidis, Matthias Alexander Zingg, Thomas Rosemann, Christoph Alexander Rüst
The age of the best marathon performance has been well investigated for flat city marathon running, but not for mountain marathon running. The aim of this study was to determine the age of the best mountain marathon performance and to compare to results of a flat city marathon. Race times and ages of finishers of a mountain marathon with 1,830 m of altitude change (Jungfrau Marathon, Switzerland) and two flat city marathons (Lausanne Marathon and Zurich Marathon, Switzerland) were analysed using linear, non-linear and mixed-effects regression analyses...
February 28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28052641/protective-effects-of-melatonin-on-the-activity-of-sod-cat-gsh-px-and-gsh-content-in-organs-of-mice-after-administration-of-snp
#13
Zofia Goc, Waldemar Szaroma, Edyta Kapusta, Karol Dziubek
Sodium nitroprusside (SNP) is an antihypertensive drug with proven dose-dependent toxic effects attributed mainly to the production of cyanide but also excesive nitric oxide (NO) and derived reactive species. The present study evaluated whether melatonin administration would have time-dependent protective effect against SNP−induced toxicity. Male Swiss mice were used in this study. Control mice were treated with 0.9% NaCl; the second group was injected with 10 mg melatonin (MEL)/kg body weight (b.w.); the third group was given SNP at the dose of 3,6 mg/kg b...
February 28, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27817197/decline-in-semen-quality-in-men-in-northern-taiwan-between-2001-and-2010
#14
Ching-Jen Li, Chii-Ruey Tzeng, Ruey-Yu Chen, Bor-Cheng Han, Ching-Ying Yeh, Ling-Chu Chien
Semen quality is a key indicator of the male reproductive ability. The decline in semen quality has been debated for several decades. However, data on decline in semen quality might be inconsistent given factors such as geographical area, ethnicity, environmental exposure and lifestyle changes. This study aimed to provide information on the semen quality of men in Northern Taiwanese. We recruited 7,187 male participants between 2001 and 2010 from a reproductive medical center. The age of the participants ranged from 26 to 57 years, with a mean age of 36...
December 31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27817196/the-detection-of-tumor-location-and-lymph-node-metastasis-by-aberrant-nxph1-and-nxph2-expressions-in-pancreatic-ductal-adenocarcinomas
#15
Jong-Shiaw Jin, Wen-Chiuan Tsai
Pancreatic ductal adenocarcinoma (PDAC) is an aggressive disease associated with a poor prognosis and high morbidity. Early diagnosis and complete tumor removal are still the principal factors extending life expectancy in PDAC patients. Here, the relationship of neurexophillin 1 (NXPH1) and NXPH2 expressions with clinicopathological parameters of PDAC was evaluated. Immunohistochemical analysis of NXPH1 and NXPH2 was performed in one tissue microarray of 96 surgical specimens, including normal pancreatic duct tissue (n = 5), PDACs at various stages of differentiation (n = 77), and pancreatic neuroendocrine tumors (n = 14)...
December 31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27817195/mechanisms-underlying-lung-resistance-related-protein-lrp-mediated-doxorubicin-resistance-of-non-small-cell-lung-cancer-cells
#16
Yu-Lun Chen, Tsung-Ying Yang, Chieh-Liang Wu, Kun-Chieh Chen, Shih-Lan Hsu, Chi-Mei Hsueh
Lung resistance-related protein (LRP) is a human major vault protein (MVP) implicated in drug resistance of cancer cells in a cell-type dependent manner. The primary goal of the study was to understand the role(s) of LRP in doxorubicin (DOX) resistance of non-small cell lung cancer (NSCLC) cells and the underlying working mechanisms. In the study, the roles of LRP in the regulation of DOX dynamics, nuclear import of minor vault proteins (vault poly (ADP-ribose) polymerase, vPARP and telomerase associated protein-1, TEP-1) and DOX-mediated cytotoxicity were examined in CH27 and H460 cells...
December 31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27817194/suppression-of-isoproterenol-induced-apoptosis-in-h9c2-cardiomyoblast-cells-by-daidzein-through-activation-of-akt
#17
Wei-Syun Hu, Yueh-Min Lin, Wei-Wen Kuo, Lung-Fa Pan, Yu-Lan Yeh, Yi-Hui Li, Chia-Hua Kuo, Ray-Jade Chen, V. Vijaya Padma, Tung-Sheng Chen, Chih-Yang Huang
Increased serum norepinephrine level is one of pathological processes relating to heart disease (HD). Estrogens are considered as potential therapeutics for the treatment of HD; however, estrogen supplementation shows some side-effects, such as increasing the risk of developing breast, endometrial and ovarian cancers. This study investigated the cardio-protective effects of daidzein (Dai), a selective estrogen receptor modulator (SERM) from soy bean extract, in H9c2 cardiomyoblast cells treated with isoproterenol (ISO), a norepinephrine analog...
December 31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27817193/effect-of-microrna-155-on-the-interferon-gamma-signaling-pathway-in-biliary-atresia
#18
Yu-An Hsu, Chih-Hung Lin, Hui-Ju Lin, Chi-Chun Huang, Hsiu-Chu Lin, Ying-Chi Chen, Ching-Yao Chang, Su-Hua Huang, Jane-Ming Lin, Kuan-Rong Lee, Lei Wan
MicroRNAs (miRNAs) are ~22-nucleotide long RNAs that negatively regulate gene expression and inflammatory responses in eukaryotes. The aim of this work was to evaluate the roles of miRNA (miR)-155 on the interferon-γ (IFN-γ)-induced response in biliary atresia (BA), which is the most common form of pediatric chronic liver disease and a leading indication for pediatric liver transplantation. The expression of miR-155 and the suppressor of cytokine signaling 1 (SOCS1) gene in human and mice liver tissues of BA and healthy controls was evaluated...
December 31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27817192/positive-pacing-in-elite-ironman-triathletes
#19
Nicole Angehrn, Christoph A. Rüst, Pantelis T. Nikolaidis, Thomas Rosemann, Beat Knechtle
Pacing is known to influence athletic performance. For the Ironman triathlon program, a positive pacing strategy, i.e., the continuous decrease of speed over time was recommended. By analyzing split times, we assessed the pacing strategies of the top 100 finishers of the cycling part of 13 Ironman races and of the running part of 11 Ironman races taking place in 2014. Furthermore, sex-associated differences in performance and pacing strategies were calculated. We analyzed 7,687 cycling and 11,894 running split times of 1,392 triathletes (1,263 men, 129 women)...
December 31, 2016: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/27604140/improvement-of-the-quality-of-work-in-a-biochemistry-laboratory-via-measurement-system-analysis
#20
Ming-Shu Chen, Chen-Mao Liao, Ming-Hsun Wu, Chih-Ming Lin
An adequate and continuous monitoring of operational variations can effectively reduce the uncertainty and enhance the quality of laboratory reports. This study applied the evaluation rule of the measurement system analysis (MSA) method to estimate the quality of work conducted in a biochemistry laboratory. Using the gauge repeatability & reproducibility (GR&R) approach, variations in quality control (QC) data among medical technicians in conducting measurements of five biochemical items, namely, serum glucose (GLU), aspartate aminotransferase (AST), uric acid (UA), sodium (Na) and chloride (Cl), were evaluated...
October 31, 2016: Chinese Journal of Physiology
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