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https://www.readbyqxmd.com/read/29643834/metabolic-impact-on-the-hypothalamic-kisspeptin-kiss1r-signaling-pathway
#1
REVIEW
Fazal Wahab, Bibi Atika, Farhad Ullah, Muhammad Shahab, Rüdiger Behr
A large body of data has established the hypothalamic kisspeptin (KP) and its receptor, KISS1R, as major players in the activation of the neuroendocrine reproductive axis at the time of puberty and maintenance of reproductive capacity in the adult. Due to its strategic location, this ligand-receptor pair acts as an integrator of cues from gonadal steroids as well as of circadian and seasonal variation-related information on the reproductive axis. Besides these cues, the activity of the hypothalamic KP signaling is very sensitive to the current metabolic status of the body...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29628881/posture-motor-and-posture-ideomotor-dual-tasking-a-putative-marker-of-psychomotor-retardation-and-depressive-rumination-in-patients-with-major-depressive-disorder
#2
Lyubomir I Aftanas, Olga M Bazanova, Nataliya V Novozhilova
Background: Recent studies have demonstrated that the assessment of postural performance may be a potentially reliable and objective marker of the psychomotor retardation (PMR) in the major depressive disorder (MDD). One of the important facets of MDD-related PMR is reflected in disrupted central mechanisms of psychomotor control, heavily influenced by compelling maladaptive depressive rumination. In view of this we designed a research paradigm that included sequential execution of simple single-posture task followed by more challenging divided attention posture tasks, involving concurring motor and ideomotor workloads...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29607946/clinical-characteristics-phenotype-of-lipodystrophy-and-a-genetic-analysis-of-six-diabetic-japanese-women-with-familial-partial-lipodystrophy-in-a-diabetic-outpatient-clinic
#3
Masanori Iwanishi, Jun Ito-Kobayashi, Miki Washiyama, Toru Kusakabe, Ken Ebihara
Objective Our aim was to examine the clinical characteristics and phenotype of lipodystrophy of six diabetic Japanese women with partial lipodystrophy (PL) who received a genetic analysis at a diabetic outpatient clinic. Methods We screened for PL using dual energy X-ray absorptiometry (DEXA) and magnetic resonance imaging (MRI) among patients who had a reduced peripheral skinfold thickness at the diabetic outpatient clinic of Kusatsu General Hospital between August 2003 and August 2013. We performed a mutation analysis of candidate genes, including LMNA and PPARG, in two patients with PL and whole-exome sequencing in four patients with PL...
March 30, 2018: Internal Medicine
https://www.readbyqxmd.com/read/29600656/-characterization-and-pathophysiological-changes-of-cerebral-infarction-rat-model-with-qi-deficiency-and-blood-stasis-syndrome
#4
Ying Li, Lei-Sha Wang, Jian-Xun Liu, Wen-Ting Song, Li Xu, Hong-Hai Li, Jun-Mei Li, Bin Yang, Xiao-Xia Dong, Guang-Rui Wang, Ming-Jiang Yao, Cheng-Ren Lin
This study aimed to observe the general state and changes in pathophysiological indexes of multiple cerebral infarction rat model with Qi-deficienty and Blood-stasis syndrome. Rats were randomly divided into 4 groups(with 30 in each group): the normal group, the sham group, the model group and the Yiqi Huoxue recipe group. Rats in the model group and Yiqi Huoxue group were provided with interruptable sleep deprivation for 7 days before the multiple cerebral infarction operation, and followed by another 4 weeks of sleep deprivation; rats in the Yiqi Huoxue group were intragastrically administrated with drug at a dose of 26 g·kg⁻¹, once a day for 4 weeks...
February 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29590585/hexahydrated-mg-2-binding-and-outer-shell-dehydration-on-rna-surface
#5
Tao Yu, Shi-Jie Chen
The interaction between metal ions, especially Mg2+ ions, and RNA plays a critical role in RNA folding. Upon binding to RNA, a metal ion that is fully hydrated in bulk solvent can become dehydrated. Here we use molecular dynamics simulation to investigate the dehydration of bound hexahydrated Mg2+ ions. We find that a hydrated Mg2+ ion in the RNA groove region can involve significant dehydration in the outer hydration shell. The first or innermost hydration shell of the Mg2+ ion, however, is retained during the simulation because of the strong ion-water electrostatic attraction...
March 27, 2018: Biophysical Journal
https://www.readbyqxmd.com/read/29569622/global-epidemiology-of-hyperthyroidism-and-hypothyroidism
#6
REVIEW
Peter N Taylor, Diana Albrecht, Anna Scholz, Gala Gutierrez-Buey, John H Lazarus, Colin M Dayan, Onyebuchi E Okosieme
Thyroid hormones are essential for growth, neuronal development, reproduction and regulation of energy metabolism. Hypothyroidism and hyperthyroidism are common conditions with potentially devastating health consequences that affect all populations worldwide. Iodine nutrition is a key determinant of thyroid disease risk; however, other factors, such as ageing, smoking status, genetic susceptibility, ethnicity, endocrine disruptors and the advent of novel therapeutics, including immune checkpoint inhibitors, also influence thyroid disease epidemiology...
March 23, 2018: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/29556158/calorie-restriction-regime-enhances-physical-performance-of-trained-athletes
#7
Victoria Pons, Joan Riera, Xavier Capó, Miquel Martorell, Antoni Sureda, Josep A Tur, Franchek Drobnic, Antoni Pons
Background: Caloric restriction induces mitochondrial biogenesis and improves physical fitness in rodents. We aimed to provide evidence of how caloric restriction affects the body composition and physical performance of trained athletes and to evaluate the possible impact of an every-other-day feeding diet on nutritional deficiencies of micronutrients and essential fatty acids. Methods: The study was performed with 12 healthy male athletes by carrying out a 33% caloric restriction with respect to their usual diet...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29550413/sex-differences-in-common-sports-injuries
#8
REVIEW
Cindy Lin, Ellen Casey, Daniel Herman, Nicole Katz, Adam Tenforde
Common sports injuries include bone stress injuries (BSIs), anterior cruciate ligament (ACL) injuries, and concussions. Less commonly recognized are the specific sex differences in epidemiology, risk factors, and outcomes of these conditions by sex. An understanding of these factors can improve their clinical management, from prescribing appropriate prehabilitation to guiding postinjury rehabilitation and return to play. This narrative review summarizes the sex differences in the diagnosis and management of BSIs, ACL injuries, and concussions...
March 14, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29541664/crystallographic-vibrational-modes-and-optical-properties-data-of-%C3%AE-dipab-crystal
#9
Ahmad Alsaad, Chris M Marin, Nabil Alaqtash, Hsien-Wen Chao, Tsun-Hsu Chang, Chin Li Cheung, A Ahmad, I A Qattan, Renat F Sabirianov
The Crystallographic data of the α-DIPAB sample was measured using powder X-ray diffraction (PXRD). The crystal structure was also optimized using density functional based method. The calculations were performed both including van der Waals (vdW) interactions and excluding them to quantify the effects of vdW interaction on the crystal formation. The vibrational modes of DIPAB crystal corresponding to the Bromine deficient samples are calculated and presented. These show the origin of drastic change in dielectric response in Br deficient samples as compared to the ideal stoichiometric DIPAB crystal (Alsaad et al...
February 2018: Data in Brief
https://www.readbyqxmd.com/read/29540484/metabolomics-reveals-critical-adrenergic-regulatory-checkpoints-in-glycolysis-and-pentose-phosphate-pathways-in-embryonic-heart
#10
Jessica N R Peoples, Timmi Maxmillian, Quynh Le, Sergiy M Nadtochiy, Paul S Brookes, George A Porter, Victor L Davidson, Steven N Ebert
Cardiac energy demands during early embryonic periods are sufficiently met through glycolysis, but as development proceeds, oxidative phosphorylation in mitochondria becomes increasingly vital. Adrenergic hormones are known to stimulate metabolism in adult mammals and are essential for embryonic development, but relatively little is known about their effects on metabolism in the embryonic heart.  Here, we show that embryos lacking adrenergic stimulation have approximately 10-fold less cardiac ATP compared to littermate controls...
March 14, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29540272/association-of-low-dietary-folate-intake-with-lower-camkk2-gene-methylation-adiposity-and-insulin-resistance-in-obese-subjects
#11
Omar Ramos-Lopez, Mirian Samblas, Fermin I Milagro, M Angeles Zulet, Maria L Mansego, Jose I Riezu-Boj, J Alfredo Martinez
Folate deficiency has been putatively implicated in the onset of diverse metabolic abnormalities, including insulin resistance, by altering epigenetic processes on key regulatory genes. The calcium/calmodulin-dependent protein kinase kinase 2 (CAMKK2) is involved in the regulation of critical metabolic processes such as adiposity and glucose homeostasis. This study hypothesized associations between low folate intakes and lower methylation levels of the CAMKK2 gene, with the presence of metabolic alterations in subjects with obesity...
February 2018: Nutrition Research
https://www.readbyqxmd.com/read/29535637/the-role-of-sirt6-in-obesity-and-diabetes
#12
REVIEW
Jiangying Kuang, Lei Chen, Qin Tang, Jinhang Zhang, Yanping Li, Jinhan He
Sirt6 is one of the sirtuin family members, a kind of NAD+-dependent histone deacetylase and ADP-ribose transferase enzyme. It has an important role in physiological and pathological processes, regulating aging, cancer, obesity, insulin resistance, inflammation, and energy metabolism. Recent studies have suggested that reduced Sirt6 action is related to obesity and diabetes. Aging and overnutrition, two major risk factors for obesity and diabetes, lead to decreased Sirt6 level and function, which results in abnormal glucose and lipid metabolism...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29534088/age-dependent-changes-in-metabolic-profile-of-turkey-spermatozoa-as-assessed-by-nmr-analysis
#13
Nicolaia Iaffaldano, Michele Di Iorio, Luisa Mannina, Gianluca Paventi, Maria Pina Rosato, Silvia Cerolini, Anatoly P Sobolev
Metabolic profile of fresh turkey spermatozoa at three different reproductive period ages, namely 32, 44 and 56 weeks, was monitored by Nuclear Magnetic Resonance (NMR) spectroscopy and correlated to sperm quality parameters. The age-related decrease in sperm quality as indicated by reduction of sperm concentration, sperm mobility and osmotic tolerance was associated to variation in the level of specific water-soluble and liposoluble metabolites. In particular, the highest levels of isoleucine, phenylalanine, leucine, tyrosine and valine were found at 32 weeks of age, whereas aspartate, lactate, creatine, carnitine, acetylcarnitine levels increased during the ageing...
2018: PloS One
https://www.readbyqxmd.com/read/29525607/raspberry-promotes-brown-and-beige-adipocyte-development-in-mice-fed-high-fat-diet-through-activation-of-amp-activated-protein-kinase-ampk-%C3%AE-1
#14
Tiande Zou, Bo Wang, Qiyuan Yang, Jeanene M de Avila, Mei-Jun Zhu, Jinming You, Daiwen Chen, Min Du
Development of brown and beige/brite adipocytes increases thermogenesis and helps to reduce obesity and metabolic syndrome. Our previous study suggests that dietary raspberry can ameliorate metabolic syndromes in diet-induced obese mice. Here, we further evaluated the effects of raspberry on energy expenditure and adaptive thermogenesis and determined whether these effects were mediated by AMP-activated protein kinase (AMPK). Mice deficient in the catalytic subunit of AMPKα1 and wild-type (WT) mice were fed a high-fat diet (HFD) or HFD supplemented with 5% raspberry (RAS) for 10 weeks...
February 13, 2018: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29516691/-on-the-considerations-about-heating-materials-and-temperature-of-moxibustion-in-clinical-practice
#15
Bing Zhu
Moxibustion, one of the traditional Chinese medicine therapy, plays an important role in the treatment of a variety of clinical conditions, particularly the chronic and deficiency problems. In the present paper, the author reviewed the history of development of moxibustion therapy, and the related materials and heating temperature in ancient China, and also reviewed the history of heating therapy (similar to moxibustion) appearing in ancient Egypt, Greek, Libya, India, Europe, etc. The author thinks that the efficacy of moxibustion intervention mainly depends on the heating temperature and the heated area of the skin (not the heating materials) according to his own research group's experimental outcomes...
February 25, 2018: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29506485/transcriptional-profiling-of-liver-in-riboflavin-deficient-chicken-embryos-explains-impaired-lipid-utilization-energy-depletion-massive-hemorrhaging-and-delayed-feathering
#16
Larry A Cogburn, Danielle N Smarsh, Xiaofei Wang, Nares Trakooljul, Wilfrid Carré, Harold B White
BACKGROUND: A strain of Leghorn chickens (rd/rd), unable to produce a functional riboflavin-binding protein, lays riboflavin-deficient eggs, in which all embryos suddenly die at mid-incubation (days 13-15). This malady, caused by riboflavin deficiency, leads to excessive lipid accumulation in liver, impaired β-oxidation of lipid, and severe hypoglycemia prior to death. We have used high-density chicken microarrays for time-course transcriptional scans of liver in chicken embryos between days 9-15 during this riboflavin-deficiency-induced metabolic catastrophe...
March 5, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29500071/transient-regional-cerebral-hypoperfusion-during-a-paroxysmal-hemiplegic-event-in-glut1-deficiency-syndrome
#17
Mohamed Almuqbil, Michael J Rivkin, Masanori Takeoka, Edward Yang, Lance H Rodan
GLUT1 deficiency syndrome (GLUT1DS) is a well described neurometabolic disorder that results from impaired glucose transport into the central nervous system. GLUT1DS classically presents with infantile-onset epilepsy, progressive microcephaly, developmental delay, ataxia, dystonia, and spasticity, but a minority of patients may manifest with paroxysmal non-epileptic phenomena including hemiparesis (Wang et al., 2002). We report for the first time cerebral perfusion changes during an acute episode of hemiparesis in a 9 year old child with GLUT1DS...
February 19, 2018: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/29499097/eaa-clinical-guideline-on-management-of-bone-health-in-the-andrological-outpatient-clinic
#18
REVIEW
V Rochira, L Antonio, D Vanderschueren
Male osteoporosis is now a well-recognized medical disorder with established clinical guidelines for both diagnosis and management. Prevention as well as management of osteoporosis in men consulting the andrological outpatient clinic because of low testosterone, however, is not well established. This gap of knowledge is-at least partly-explained by the controversy with respect to the threshold of testosterone needed for skeletal maintenance. However, testosterone deficiency may be clearly associated with bone loss as well as frailty in men...
March 2018: Andrology
https://www.readbyqxmd.com/read/29492544/a-wearable-transcranial-doppler-ultrasound-phased-array-system
#19
Sabino J Pietrangelo, Hae-Seung Lee, Charles G Sodini
OBJECTIVE:  Practical deficiencies related to conventional transcranial Doppler (TCD) sonography have restricted its use and applicability. This work seeks to mitigate several such constraints through the development of a wearable, electronically steered TCD velocimetry system, which enables noninvasive measurement of cerebral blood flow velocity (CBFV) for monitoring applications with limited operator interaction. MATERIALS AND METHODS: A highly-compact, discrete prototype system was designed and experimentally validated through flow phantom and preliminary human subject testing...
2018: Acta Neurochirurgica. Supplement
https://www.readbyqxmd.com/read/29489596/effect-of-leptin-on-marrow-adiposity-in-ovariectomized-rabbits-assessed-by-proton-magnetic-resonance-spectroscopy
#20
Shaojun Li, Hongning Jiang, Bo Wang, Mingjun Gu, Ning Zhang, Wenwen Liang, Yu Wang
OBJECTIVE: Leptin acts to influence bone metabolism through indirect hypothalamic relay and direct peripheral pathways. Leptin enhances the differentiation of mesenchymal stem cells to the osteoblast rather than the adipocyte lineage, but the in vivo impacts of leptin on ovariectomy (OVX)-induced marrow adiposity are poorly understood. In this work, we aimed to address this question. METHODS: Forty-five female New Zealand rabbits were divided into sham + vehicle, OVX + vehicle, and OVX + leptin for 5 months...
February 27, 2018: Journal of Computer Assisted Tomography
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