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https://www.readbyqxmd.com/read/27911483/effects-of-dietary-heme-iron-and-exercise-training-on-abdominal-fat-accumulation-and-lipid-metabolism-in-high-fat-diet-fed-mice
#1
Masanori Katsumura, Shoko Takagi, Hana Oya, Shohei Tamura, Takaoki Saneyasu, Kazuhisa Honda, Hiroshi Kamisoyama
Animal by-products can be recycled and used as sources of essential nutrients. Water-soluble heme iron (WSHI), a functional food additive for supplementing iron, is produced by processing animal blood. In this study, we investigated the effects of dietary supplementation of 3% WSHI and exercise training for 4 weeks on the accumulation of abdominal fat and lipid metabolism in mice fed high-fat diet. Exercise-trained mice had significantly less perirenal adipose tissue, whereas WSHI-fed mice tended to have less epididymal adipose tissue...
December 2, 2016: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/27909230/the-protective-role-of-sex-hormones-in-females-and-exercise-prehabilitation-in-males-on-sternotomy-induced-cranial-hypoperfusion-in-aortic-banded-mini-swine
#2
T Dylan Olver, Jessica A Hiemstra, Jenna C Edwards, Brian S Ferguson, Harold Laughlin, Craig A Emter
During cardiac surgery, specifically sternotomy, cranial hypoperfusion is linked to cerebral ischemia, increased risk of perioperative watershed stroke and other neurocognitive complications. The purpose of this study was to retrospectively examine the effect of sex hormones in females and exercise prehabilitation in males on median sternotomy-induced changes in cranial perfusion in a large animal model of heart failure. Cranial blood flow (CBF) before, 10- and 60 min post-sternotomy was analyzed in eight groups of Yucatan mini-swine: female-control, aortic-banded, ovariectomized, and ovariectomized+aortic-banded; male-control, aortic-banded, aortic-banded+continuous exercise trained, and aortic-banded+interval exercise trained...
December 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27903152/obesity-and-cancer-mechanisms-cancer-metabolism
#3
Benjamin D Hopkins, Marcus D Goncalves, Lewis C Cantley
Obesity is a risk factor for cancer development and is associated with poor prognosis in multiple tumor types. The positive energy balance linked with obesity induces a variety of systemic changes including altered levels of insulin, insulin-like growth factor-1, leptin, adiponectin, steroid hormones, and cytokines. Each of these factors alters the nutritional milieu and has the potential to create an environment that favors tumor initiation and progression. Although the complete ramifications of obesity as it relates to cancer are still unclear, there is convincing evidence that reducing the magnitude of the systemic hormonal and inflammatory changes has significant clinical benefits...
December 10, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27901247/anabolic-steroids-for-rehabilitation-after-hip-fracture-in-older-people
#4
Vaqas Farooqi, Maayken E L van den Berg, Ian D Cameron, Maria Crotty
BACKGROUND: Hip fracture occurs predominantly in older people, many of whom are frail and undernourished. After hip fracture surgery and rehabilitation, most patients experience a decline in mobility and function. Anabolic steroids, the synthetic derivatives of the male hormone testosterone, have been used in combination with exercise to improve muscle mass and strength in athletes. They may have similar effects in older people who are recovering from hip fracture. OBJECTIVES: To examine the effects (primarily in terms of functional outcome and adverse events) of anabolic steroids after surgical treatment of hip fracture in older people...
September 2016: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/27899683/validation-of-an-integrative-mathematical-model-of-dehydration-and-rehydration-in-virtual-humans
#5
W Andrew Pruett, John S Clemmer, Robert L Hester
Water homeostasis is one of the body's most critical tasks. Physical challenges to the body, including exercise and surgery, almost always coordinate with some change in water handling reflecting the changing needs of the body. Vasopressin is the most important hormone that contributes to short-term water homeostasis. By manipulating vascular tone and regulating water reabsorption in the collecting duct of the kidneys, vasopressin can mediate the retention or loss of fluids quickly. In this study, we validated HumMod, an integrative mathematical model of human physiology, against six different challenges to water homeostasis with special attention to the secretion of vasopressin and maintenance of electrolyte balance...
November 2016: Physiological Reports
https://www.readbyqxmd.com/read/27891737/role-of-resistance-physical-exercise-in-preventing-testicular-damage-caused-by-chronic-ethanol-consumption-in-uchb-rats
#6
Gessica Dutra Gonçalves, Nichelle Antunes Vieira, Henrique Rodrigues Vieira, Aline Dias Valério, Gláucia Elóisa Munhoz de Lion Siervo, Patricia Fernanda Felipe Pinheiro, Francisco Eduardo Martinez, Flávia Alessandra Guarnier, Giovana Rampazzo Teixeira, Glaura Scantamburlo Alves Fernandes
Ethanol consumption is associated with spermatogenesis damage and testosterone level alterations. Alcohol remains the most commonly used substance among athletes and sports enthusiasts. This study evaluated whether resistance physical exercise can reduce the testicular damage caused by ethanol exposure. A total of 36 ethanol drinking (UChB) rats were divided into four groups: C (control rats), ETOH (ethanol consumption), ETOH + T (ethanol consumption + physical training), and T (group physical training)...
November 28, 2016: Microscopy Research and Technique
https://www.readbyqxmd.com/read/27886378/interactive-effect-of-corticosterone-and-lactate-on-regulation-of-testosterone-production-in-rat-leydig-cells
#7
Chih-Chieh Chen, Chien-Wei Chen, Po-Han Lin, Jou-Chun Chou, Ting-Chun Weng, Cai-Yun Jian, Sindy Hu, Wei-Ho Lai, Fu-Kong Lieu, Shyi-Wu Wang, Paulus S Wang
The increasing intensity of exercise enhanced corticosterone and lactate production in both humans and rodents. Our previous studies also demonstrated that lactate could stimulate testosterone production in vivo and in vitro. However, the production of testosterone in response to combined corticosterone and lactate on Leydig cells, and underlying molecular mechanisms are remained unclear. This study investigated the changes in testosterone levels of Leydig cells upon exposure to lactate, corticosterone or combination of both, and revealed the detailed mechanisms...
November 25, 2016: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/27883324/hormone-therapy-reduces-bone-resorption-but-not-bone-formation-in-postmenopausal-athletes
#8
Suzy Y Honisett, David Pagliaro, Kathy Tangalakis, Bronwyn Kingwell, Peter Ebeling, Robyn Craven, Juliana Antonopillai, Vasso Apostolopoulos, Lily Stojanovska
INTRODUCTION: Independently, hormone therapy and exercise have well-established protective effects on bone parameters. The combined effects of hormone therapy and exercise, however, are less clear. We, therefore, examined the effects of hormone therapy on bone turnover markers in postmenopausal women undergoing regular high intensity exercise. METHODS: In a randomised, double blind study, postmenopausal athletes competing at Masters level, received either hormone therapy (50 μg transdermal oestradiol, 5 mg MPA, n = 8) or placebo (n = 7) for 20 weeks...
November 1, 2016: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27883319/the-effects-of-hormonal-therapy-and-exercise-on-bone-turnover-in-postmenopausal-women-a-randomised-double-blind-pilot-study
#9
Suzy Y Honisett, Kathy Tangalakis, John Wark, Vasso Apostolopoulos, Lily Stojanovska
INTRODUCTION: Hormone replacement therapy (HRT) and walking were investigated independently and in combination, to determine which treatment provided most effect on bone turnover in postmenopausal women. METHODS: Using a randomised double-blind pilot study, 10 subjects received HRT (transdermal estradiol, 50 μg/day and oral MPA 5 mg/day) and 12 received placebo for 20 weeks. Following a baseline period of treatment, both groups undertook a graduated walking regimen, which increased in intensity, duration and frequency parameters from weeks 8-20...
November 1, 2016: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
https://www.readbyqxmd.com/read/27882003/risk-factors-for-deep-venous-thrombosis-of-lower-limbs-in-postoperative-neurosurgical-patients
#10
Qiang Li, Zongxue Yu, Xiao Chen, Jinjun Wang, Guixi Jiang
OBJECTIVES: To detect the risk factors for deep venous thrombosis (DVT) in patients after neurosurgery. METHODS: Three hundred and seventy-six patients treated in the department of neurosurgery of our hospital from February 2013 to November 2015 were reviewed retrospectively. The clinical data including age, gender, hospital stay, operation time, occupation type, hypertension, coronary heart disease, diabetes, smoking status, drinking status, postoperative exercises, malignant tumor, and postoperative hormone or dehydrating agent were collected...
September 2016: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/27874965/somatostatin-agonist-pasireotide-inhibits-exercise-stimulated-growth-in-the-male-siberian-hamster-phodopus-sungorus
#11
Rebecca Dumbell, Ines Petri, Frank Scherbarth, Victoria Diedrich, Herbert A Schmid, Stephan Steinlechner, Perry Barrett
The Siberian hamster (Phodopus sungorus) is a seasonal mammal, exhibiting a suite of physiologically and behaviourally distinct traits dependent on the time of year and governed by changes in perceived day length (photoperiod). These attributes include significant weight loss, reduced food intake, gonadal atrophy, and pelage change with short day photoperiod as in winter. The central mechanisms driving seasonal phenotype change during winter are mediated by a reduced availability of hypothalamic tri-iodothyronine (T3), but downstream mechanisms responsible for physiological and behavioural changes are yet to be fully elucidated...
November 22, 2016: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/27871063/dioscorea-esculenta-induced-increase-in-muscle-sex-steroid-hormones-is-associated-with-enhanced-insulin-sensitivity-in-a-type-2-diabetes-rat-model
#12
Koji Sato, Satoshi Fujita, Motoyuki Iemitsu
The effects of chronic Dioscorea esculenta administration and exercise training on muscle sex steroid hormone levels and insulin resistance in type 2 diabetes rats was assessed. Twenty-wk-old male Otsuka Long Evans Tokushima Fatty (OLETF) rats were assigned randomly to the control, D. esculenta treatment, D. esculenta with 5α-reductase inhibitor treatment, or the exercise training groups (running at 25 m/min for 1 h, 5 d/wk; n = 10 each group). Eight weeks of D. esculenta treatment or exercise training significantly attenuated the increase in plasma insulin and fasting glucose levels...
November 8, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27870902/sleep-duration-exercise-shift-work-and-polycystic-ovarian-syndrome-related-outcomes-in-a-healthy-population-a-cross-sectional-study
#13
Audrey J R Lim, Zhongwei Huang, Seok Eng Chua, Michael S Kramer, Eu-Leong Yong
CONTEXT: Few studies have examined the associations between sleep duration, shiftwork, and exercise to the infrequent menstruation, hyperandrogenism, and ovarian morphological changes observed in women with polycystic ovarian syndrome (PCOS). OBJECTIVE: To examine whether lifestyle factors, including short sleep duration, insufficient exercise, and shiftwork, alone or in combination, are associated with the reproductive and metabolic abnormalities typical of PCOS in a healthy population...
2016: PloS One
https://www.readbyqxmd.com/read/27866309/osteoporosis-in-patients-with-diabetes-after-kidney-transplantation
#14
REVIEW
Elvira O Gosmanova, Aidar R Gosmanov
Preexisting diabetes increases risk of fractures after kidney transplantation (KT). However, little is known about mechanisms and prevention of increased fragility in these patients. Pathophysiology of osteoporosis after KT is complex and characterized by high prevalence of adynamic bone disease. Despite high prevalence of preexisting diabetes in KT recipients, diabetes patients were underrepresented in the studies that explored mechanisms and treatments of osteoporosis after KT. Therefore, caution should be exercised before considering conventional fracture prevention strategies in this unique group of patients...
November 19, 2016: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/27863207/effects-of-morning-versus-evening-combined-strength-and-endurance-training-on-physical-performance-muscle-hypertrophy-and-serum-hormone-concentrations
#15
Maria Küüsmaa, Moritz Schumann, Milan Sedliak, William J Kraemer, Robert U Newton, Jari-Pekka Malinen, Kai Nyman, Arja Häkkinen, Keijo Häkkinen
This study investigated the effects of 24 weeks of morning versus evening same-session combined strength (S) and endurance (E) training on physical performance, muscle hypertrophy, and resting serum testosterone and cortisol diurnal concentrations. Forty-two young men were matched and assigned to a morning (m) or evening (e) E + S or S + E group (mE + S, n = 9; mS + E, n = 9; eE + S, n = 12; and eS + E, n = 12). Participants were tested for dynamic leg press 1-repetition maximum (1RM) and time to exhaustion (Texh) during an incremental cycle ergometer test both in the morning and evening, cross-sectional area (CSA) of vastus lateralis and diurnal serum testosterone and cortisol concentrations (0730 h; 0930 h; 1630 h; 1830 h)...
December 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27856715/highlighted-topics-recovery-from-exercise-recovery-responses-of-testosterone-growth-hormone-and-igf-1-after-resistance-exercise
#16
William J Kraemer, Nicholas A Ratamess, Bradley J Nindl
The complexity of the endocrine pathways during recovery related to anabolic function belie an over simplistic approach to its study. This review is to examines the role of resistance exercise (RE) on the recovery responses of three major anabolic hormones testosterone, growth hormone(s) and insulin-like growth factor-I. Each hormone has a complexity related to differential pathways of action as well as interactions with binding proteins and receptor interactions. Testosterone is the primary anabolic hormone and its concentration changes during the recovery period depending upon the up- or down-regulation of the androgen receptor...
November 17, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27856557/activating-transcription-factor-3-attenuates-chemokine-and-cytokine-expression-in-mouse-skeletal-muscle-after-exercise-and-facilitates-molecular-adaptation-to-endurance-training
#17
Rodrigo Fernández-Verdejo, Aline M Vanwynsberghe, Ahmed Essaghir, Jean-Baptiste Demoulin, Tsonwin Hai, Louise Deldicque, Marc Francaux
Activating transcription factor (ATF)3 regulates the expression of inflammation-related genes in several tissues under pathological contexts. In skeletal muscle, atf3 expression increases after exercise, but its target genes remain unknown. We aimed to identify those genes and to determine the influence of ATF3 on muscle adaptation to training. Skeletal muscles of ATF3-knockout (ATF3-KO) and control mice were analyzed at rest, after exercise, and after training. In resting muscles, there was no difference between genotypes in enzymatic activities or fiber type...
November 17, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27852187/prevention-of-breast-cancer
#18
Ian N Olver
Modifiable lifestyle factors may reduce the risk of developing breast cancer. Obesity is associated particularly with post-menopausal breast cancer. Diet is important, and exercise equivalent to running for up to 8 hours each week reduces the risk of breast cancer, both in its own right and through reducing obesity. Alcohol consumption may be responsible for 5.8% of breast cancers in Australia and it is recommended to reduce this to two standard drinks per day. Drinking alcohol and smoking increases the risk for breast cancer and, therefore, it is important to quit tobacco smoking...
November 21, 2016: Medical Journal of Australia
https://www.readbyqxmd.com/read/27845704/investigating-the-cellular-and-metabolic-responses-of-world-class-canoeists-training-a-sportomics-approach
#19
Wagner Santos Coelho, Luis Viveiros de Castro, Elizabeth Deane, Alexandre Magno-França, Adriana Bassini, Luiz-Claudio Cameron
(1) Background: We have been using the Sportomics approach to evaluate biochemical and hematological changes in response to exercise. The aim of this study was to evaluate the metabolic and hematologic responses of world-class canoeists during a training session; (2) Methods: Blood samples were taken at different points and analyzed for their hematological properties, activities of selected enzymes, hormones, and metabolites; (3) Results: Muscle stress biomarkers were elevated in response to exercise which correlated with modifications in the profile of white blood cells, where a leukocyte rise was observed after the canoe session...
November 11, 2016: Nutrients
https://www.readbyqxmd.com/read/27832807/sex-specific-variation-in-signaling-pathways-and-gene-expression-patterns-in-human-leukocytes-in-response-to-endotoxin-and-exercise
#20
Asghar Abbasi, Rodolfo de Paula Vieira, Felix Bischof, Michael Walter, Masoud Movassaghi, Nicole C Berchtold, Andreas M Niess, Carl W Cotman, Hinnak Northoff
BACKGROUND: While exercise effects on the immune system have received increasing attention in recent years, it remains unclear to what extent gender and fluctuations in sex hormones during menstrual cycle influence immunological responses to exercise. METHODS: We investigated mRNA changes induced through exhaustive exercise (half-marathon; pre-exercise and post-exercise [30 min, 3 h, 24 h] on whole blood cultures ± lipopolysaccharide [LPS] [1 h]) with a specific focus on sex differences (men vs women in luteal phase) as an extension of our previous study...
November 10, 2016: Journal of Neuroinflammation
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