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Chinese Journal of Physiology

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https://www.readbyqxmd.com/read/28629212/a-study-of-the-modulating-action-of-quercetin-on-biochemical-and-histological-alterations-induced-by-lead-exposure-in-the-liver-and-kidney-of-rats
#1
Ghena M. Mohammed, Azza Sedky, Hany Elsawy
Lead is a highly toxic metal and a very potent poison. Lead poisoning is a serious condition but can be treated. Quercetin is a flavonoid with many beneficial uses. The aim of the present study was to investigate the possible modulating action of quercetin as a model of an antioxidant against the toxic effects of lead acetate on liver and kidneys of rats. Rats were randomly divided into four groups: (i) saline group (control); (ii) lead group received i.p. lead acetate (20 mg/kg b.w.); (iii) quercetin group received i...
June 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28629211/effect-of-methoxsalen-on-ca%C3%A2-%C3%A2-%C2%BA-homeostasis-and-viability-in-human-osteosarcoma-cells
#2
Yi-Chau Lu, Chiang-Ting Chou, Wei-Zhe Liang, Chun-Chi Kuo, Shu-Shong Hsu, Jue-Long Wang, Chung-Ren Jan
Methoxsalen is a natural compound found in many seed plants. The effect of methoxsalen on Ca²⁺- related physiology in human osteosarcoma is unclear. This study investigated the effect of methoxsalen on cytosolic free Ca²⁺ concentrations ([Ca²⁺]i) in MG63 human osteosarcoma cells. Methoxsalen induced [Ca²⁺]i rises concentration-dependently. Methoxsalen-induced Ca²⁺ entry was confirmed by Mn²⁺-induced quench of fura-2 fluorescence. This Ca²⁺ entry was suppressed by nifedipine, econazole, and SKF96365...
June 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28629210/activation-of-igf-i-survival-signaling-and-its-compensative-inhibition-of-the-cardiac-apoptosis-on-carotid-arteries-balloon-injured-rat-hearts
#3
Cheng-Hong Hsieh, Peiying Pai, Jia-Ping Wu, Tsung-Jung Ho, Chieh-Hsi Wu, Marthandam Asokan Shibu, Cecilia Hsuan Day, Vijaya Padma Viswanadha, Ho-Lin Chuang, Chih-Yang Huang
In this study, a rat carotid balloon injury-animal model was used to elucidate the temporal relation of hypertrophy in the progression of cardiac damage and the role of insulin-like growth factor (IGF)-I survival pathway on course of the cardiac damage. Rats were subjected to carotid balloon-injury and examined at different time points. We further studied the heart-weight/body-weight-ratio, histology and protein expression to understand the pathological events associated with percutaneous transluminal coronary angioplasty (PTCA) induced damages...
June 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28628970/a-randomized-double-blind-clinical-study-on-blood-pressure-reduction-and-blood-lipid-profile-amelioration-on-treatment-with-ankascin-568
#4
Chien-Li Chen, Jen-Ho Tseng, Tzu-Ming Pan, Sheng-Huang Hsiao
Hypertension and cardiovascular complications are the leading causes of death worldwide. Antihypertensive drugs often cause various side effects, and improper use of antihypertensive medications can result in irreparable damage. Edible fungi of the Monascus species have been used as traditional Chinese medicines in Southeast Asia for several centuries. The fermented products of Monascus purpureus NTU 568 (ANKASCIN 568) possess a number of functional secondary metabolites including the anti-inflammatory pigments monascin (MS) and ankaflavin (AK)...
June 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28628969/comparative-induction-of-controlled-hypotension-by-electroacupuncture-at-du20-acupoint-and-remifentanil-in-lumbar-laminectomy
#5
Mehdi Ghaemi, Majid Ansari, Kourosh Amini
Hypotensive anesthesia is utilized to reduce bleeding during orthopedic surgery. One of the various drugs that have been used to reduce blood pressure is remifentanil. This study was an attempt to compare the effect of remifentanil with that of electroacupuncture (EA) at DU20 on reducing blood pressure. In this randomized controlled clinical trial, 54 patients undergoing lumbar laminectomy were allocated to two groups. Hypotensive anesthesia was performed through infusion of remifentanil 100 μg/kg/min for the control group, and EA at DU20 acupoint with a frequency of 2-10 Hz and intensity of 1-5 mA for the intervention group...
June 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28628968/performance-trends-in-age-group-triathletes-in-the-olympic-distance-triathlon-at-the-world-championships-2009-2014
#6
Martin Wonerow, Christoph Alexander Rüst, Pantelis Theodoros Nikolaidis, Thomas Rosemann, Beat Knechtle
Performance trends in elite triathletes competing in age group classes have been investigated for Ironman triathlon in ‘Ironman Hawaii’ but not for short distance triathletes competing at international level in events such as the Olympic distance triathlon at the World Championships. The aim of the present study was to evaluate participation and performance trends of age group triathletes competing in the Olympic distance triathlon at the International Triathlon Union (ITU) World Championships 2009-2014...
June 30, 2017: Chinese Journal of Physiology
https://www.readbyqxmd.com/read/28468030/higher-dheas-levels-associated-with-long-term-practicing-of-tai-chi
#7
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
#8
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
#9
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
#10
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
#11
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
#12
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
#13
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
#14
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
#15
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
#16
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
#17
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
#18
COMPARATIVE STUDY
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
#19
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
#20
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
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