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https://www.readbyqxmd.com/read/29156752/early-and-late-effects-of-aspirin-and-naproxen-on-micrornas-in-the-lung-and-blood-of-mice-either-unexposed-or-exposed-to-cigarette-smoke
#1
Alberto Izzotti, Roumen Balansky, Gancho Ganchev, Marietta Iltcheva, Mariagrazia Longobardi, Alessandra Pulliero, Anna Camoirano, Francesco D'Agostini, Marta Geretto, Rosanna T Micale, Sebastiano La Maestra, Mark Steven Miller, Vernon E Steele, Silvio De Flora
We recently showed that nonsteroidal anti-inflammatory drugs (NSAIDs) are able to inhibit the lung tumors induced by cigarette smoke, either mainstream (MCS) or environmental (ECS), in female mice. We used subsets of mice to analyze the expression of 1135 microRNAs in both lung and blood serum, as related to the whole-body exposure to smoke and/or oral administration of either aspirin or naproxen. In a first study, we evaluated early microRNA alterations in A/J mice exposed to ECS for 10 weeks, starting at birth, and/or treated with NSAIDs for 6 weeks, starting after weaning...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156534/effects-of-standardized-isopropanolic-black-cohosh-and-estrogen-on-salivary-function-in-ovariectomized-rats
#2
Shuya Liu, Kaiyu Niu, Yunmeng Da, Yao Liu, Jing Zhang, Wenjuan Wang, Yi Zhang, Hai Jiang, Ke Wang, Wenpei Bai, Lihua Qin, Jing Jia
Oral dryness is a common feature in menopausal women. Estrogen therapy can relieve this symptom; however, the underlying mechanism was not clear. Standardized isopropanolic black cohosh (Actaea racemosa; Remifemin) can also relieve menopausal symptoms, such as hot flashes and sweating. Our previous study showed that standardized isopropanolic black cohosh could protect the submandibular gland structure. To investigate the effects and possible mechanisms of action of estrogen and standardized isopropanolic black cohosh on submandibular gland function in ovariectomized (OVX) rats, we measured body weight, daily water consumption, and blood flow in the submandibular glands...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156528/actein-ameliorates-hepatic-steatosis-and-fibrosis-in-high-fat-diet-induced-nafld-by-regulation-of-insulin-and-leptin-resistant
#3
Hong-Jun Chen, Jin Liu
Insulin and leptin resistance are highly involved in metabolic syndrome and non-alcoholic fatty liver disease (NAFLD). Presently, no approved treatment is available. Actein is isolated from the rthizomes of Cimicifuga foetida, a triterpene glycoside, exhibiting important biological properties, such as anti-inflammatory, anti-cancer, and anti-oxidant activity. However, its effects on metabolic syndrome are poorly understood. The aims of the study were mainly to investigate the molecular mechanisms regulating insulin and leptin resistance, and lipogenic action of actein in high fat diet-fed mice...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156526/combined-use-of-insoluble-%C3%AE-glucan-from-the-cell-wall-of-candida-albicans-and-cyclophosphamide-validation-in-s180-tumor-bearing-mice
#4
Yan Qi, Xin Hu, Jin Cui, Jing Chen, Qian Wu, Xiao Sun, Yan Shi
BACKGROUND: Cyclophosphamide (CTX) is a widely used antitumor drug that can suppress the immune system. The effects of regulating immune response and antitumor of β-glucan from the cell wall of Candida albicans (CAIBG) have been confirmed. However, the effects of the combined use of CAIBG and CTX remain unclear and warrant further investigation. METHODS: S180 tumor-bearing models were developed for CAIBG (100 mg/10 mL/kg) and CTX (30 mg/10 mL/kg) intervention...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156525/esomeprazole-ameliorates-ccl4-induced-liver-fibrosis-in-rats-via-modulating-oxidative-stress-inflammatory-fibrogenic-and-apoptotic-markers
#5
Heba M Eltahir, Maiiada H Nazmy
BACKGROUND: Hepatic fibrosis is a major health problem that requires further medical attention. Proton pump inhibitors are proven to possess other therapeutic potentials apart of their acid anti-secretory actions. AIM OF THE WORK: To test possible anti-fibrotic effect of esomeprazole magnesium trihydrate in management of liver fibrosis compared to silymarin, the well-known hepatoprotective agent. MATERIALS & METHODS: 40 male albino rats were divided into 4 groups: normal control group; CCl4-treated group (1 mL/kg 40% CCl4, diluted in olive oil) I...
November 15, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156359/emotion-regulation-deficits-in-persons-with-body-focused-repetitive-behavior-disorders
#6
Jennifer R Alexander, David C Houghton, Christopher C Bauer, Heather C Lench, Douglas W Woods
BACKGROUND: Conceptualizations of emotion dysregulation (ED) and body-focused repetitive behavior disorders (BFRBDs) imply that ED may be a central component of BFRBDs as well as a factor that distinguishes BFRBDs from non-impairing, subclinical body-focused repetitive behaviors (BFRBs). The current study empirically tested these observations. METHODS: One hundred thirty-eight undergraduates (of 1900 who completed a screening survey) completed self-report measures assessing four emotion regulation (ER) deficits hypothesized to underlie ED (alexithymia, maladaptive emotional reactivity, experiential avoidance, and response inhibition when distressed); 34 of these participants had BFRBDs, 64 had subclinical BFRBs, and 42 were unaffected by BFRBs...
November 10, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29156291/engineering-the-next-generation-tin-containing-%C3%AE-titanium-alloys-with-high-strength-and-low-modulus-for-orthopedic-applications
#7
Sumit Bahl, Suvam Das, Satyam Suwas, Kaushik Chatterjee
Metastable β Ti alloys are the new emerging class of biomaterial for load bearing orthopedic applications. However, these alloys in the single β phase microstructure have insufficient strength for use in load bearing applications. It is imperative to strengthen these alloys by carefully designed thermo-mechanical processing routes that typically involve aging treatment. In this investigation two newly designed Sn based β Ti alloys of composition Ti-32Nb-(2, 4) Sn are evaluated. The effects of Sn content on the mechanical properties and biological performance of these alloys processed through designed thermo-mechanical processing route are investigated...
November 11, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29156164/bone-marrow-aspirate-concentrate-and-its-uses-in-the-foot-and-ankle
#8
REVIEW
James M Cottom, Britton S Plemmons
Bone marrow aspirate has been used for the adjunctive treatment of numerous pathologic conditions in orthopedics. Viable cells are found in aspiration from many different anatomic regions of the body. Concentration of these cells has been shown to improve healing due to the increased number of certain important cells. This article discusses the mechanisms involved and reviews the literature.
January 2018: Clinics in Podiatric Medicine and Surgery
https://www.readbyqxmd.com/read/29155874/morphological-characteristics-of-diffuse-idiopathic-skeletal-hyperostosis-in-the-cervical-spine
#9
Jessica T Bakker, Jonneke S Kuperus, Hugo J Kuijf, F Cumhur Oner, Pim A de Jong, Jorrit-Jan Verlaan
OBJECTIVES: Diffuse idiopathic skeletal hyperostosis (DISH) is characterized by anterior ossification of the spine and can lead to dysphagia and airway obstruction. The morphology of the newly formed bone in the cervical spine is different compared to the thoracic spine, possibly due to dissimilarities in local vascular anatomy. In this study the spatial relationship of the new bone with the arterial system, trachea and esophagus was analyzed and compared between subjects with and without DISH...
2017: PloS One
https://www.readbyqxmd.com/read/29155861/pancreatic-exocrine-insufficiency-in-patients-with-chronic-heart-failure-and-its-possible-association-with-appetite-loss
#10
Tingting Xia, Xichen Chai, Jiaqing Shen
BACKGROUND: Appetite loss is one complication of chronic heart failure (CHF), and its association with pancreatic exocrine insufficiency (PEI) is not well investigated in CHF. AIM: We attempted to detect the association between PEI and CHF-induced appetite. METHODS: Patients with CHF were enrolled, and body mass index (BMI), left ventricular ejection fraction (LVEF), New York Heart Association (NYHA) cardiac function grading, B-type natriuretic peptide (BNP), serum albumin, pro-albumin and hemoglobin were evaluated...
2017: PloS One
https://www.readbyqxmd.com/read/29155751/dissection-and-immunofluorescent-staining-of-mushroom-body-and-photoreceptor-neurons-in-adult-drosophila-melanogaster-brains
#11
Seth M Kelly, Alexandra Elchert, Michael Kahl
Nervous system development involves a sequential series of events that are coordinated by several signaling pathways and regulatory networks. Many of the proteins involved in these pathways are evolutionarily conserved between mammals and other eukaryotes, such as the fruit fly Drosophila melanogaster, suggesting that similar organizing principles exist during the development of these organisms. Importantly, Drosophila has been used extensively to identify cellular and molecular mechanisms regulating processes that are required in mammals including neurogenesis, differentiation, axonal guidance, and synaptogenesis...
November 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155723/one-step-protocol-for-evaluation-of-the-mode-of-radiation-induced-clonogenic-cell-death-by-fluorescence-microscopy
#12
Daijiro Kobayashi, Atsushi Shibata, Takahiro Oike, Takashi Nakano
Research on ionizing radiation (IR)-induced clonogenic cell death is important for understanding the effect of IR on malignant tumors and normal tissues. Here, we describe a quick and cost-effective one-step assay for simultaneously assessing the major modes of clonogenic cell death induced by IR, i.e., apoptosis, mitotic catastrophe, and cellular senescence. In this method, cells grown on a cover slip are irradiated with X-rays and stained with 4',6-diamidino-2-phenylindole dihydrochloride (DAPI). Using fluorescence microscopy, apoptosis, mitotic catastrophe, and cellular senescence are identified based on the characteristic morphologies of the DAPI-stained nuclei...
October 23, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155610/seasonal-and-sexual-variation-in-metabolism-thermoregulation-and-hormones-in-the-big-brown-bat-eptesicus-fuscus
#13
Christopher S Richardson, Tim Heeren, Thomas H Kunz
In response to seasonal variation in energy availability and thermal environment, physiological and endocrine mechanisms have evolved in temperate zone animals. Seasonal changes in hormone activity affect metabolism, body temperature, and reproductive activity. We examined the seasonal regulatory role of hormones on basal metabolic rate (BMR) and regulatory nonshivering thermogenesis (RNST) in 98 female and 17 male adult Eptesicus fuscus (big brown bat). We measured BMR, RNST, and plasma levels of thyroid hormone (T3), leptin, and cortisol in bats captured in maternity colonies in eastern Massachusetts from May to August (from arousal from the hibernation phase to the prehibernation phase)...
January 2018: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/29155306/reverse-t3-interacts-with-%C3%AE-v%C3%AE-3-integrin-receptor-and-restores-enzyme-activities-in-the-hippocampus-of-hypothyroid-developing-rats-insight-on-signaling-mechanisms
#14
Juliana Tonietto Domingues, Daiane Cattani, Patricia Acordi Cesconetto, Bianka Alzira Nascimento de Almeida, Paula Peirozan, Guilherme Razzera, Fátima Regina Mena Barreto Silva, Regina Pessoa-Pureur, Ariane Zamoner
In the present study we provide evidence that 3,3',5'-triiodothyronine (reverse T3, rT3) restores neurochemical parameters induced by congenital hypothyroidism in rat hippocampus. Congenital hypothyroidism was induced by adding 0.05% propylthiouracil in the drinking water from gestation day 8 and continually up to lactation day 15. In the in vivo rT3 exposure, hypothyroid 12-day old pups were daily injected with rT3 (50 ng/kg body weight) or saline until day 14. In the ex vivo rT3 treatment, hippocampal slices from 15-day-old hypothyroid pups were incubated for 30 min with or without rT3 (1 nM)...
November 16, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29155303/therapeutic-vaccine-against-il-1%C3%AE-improved-glucose-control-in-a-mouse-model-of-type-2-diabetes
#15
Yue Zhang, Xiao-Lin Yu, Jun Zha, Li-Zhen Mao, Jia-Qian Chai, Rui-Tian Liu
AIMS: Inflammation is strongly associated with the mechanisms of β-cell failure in type 2 diabetes. Blockade of the key proinflammatory cytokine IL-1β has been implicated as a promising therapeutic strategy for the prevention and treatment of type 2 diabetes. In this study, we developed an IL-1β-targeted therapeutic vaccine consisting of an IL-1β epitope peptide (A1β) and assessed its efficacy on a diabetic KK-A(y) mouse model. MAIN METHODS: KK-A(y) mice were immunized with A1β for three injections at a 2-week interval...
November 16, 2017: Life Sciences
https://www.readbyqxmd.com/read/29155247/cells-have-sex-chromosomes-and-circadian-clocks-implications-for-organismal-level-functions
#16
Rae Silver
A great number of stakeholders have a keen interest in issues surrounding sex differences. These participants in the discourse often use the same evidence to draw opposite conclusions, with implications for individuals and society as a whole. One part of the maelstrom and associated emotionality derives from confounds between the concepts of "sex" vs. "gender", even among professionals. Here, the oft-repeated point is made that evidence for gender differences can't be derived from the animal research, once the generally accepted conception of gender as a process unique to humans, is acknowledged...
November 15, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29155234/survivin-and-autoimmunity-the-ins-and-outs
#17
REVIEW
Hamidreza Ebrahimiyan, Saeed Aslani, Nima Rezaei, Ahmadreza Jamshidi, Mahdi Mahmoudi
Autoimmunity is a status that immune mechanisms react against self-structure. The immune mechanisms, including cellular and molecular elements have been developed to immune body against foreign invades. Multiple factors such as genetic and epigenetic background, hormonal status, microbiome, and other factors can cause launching the autoreactive responses, in which the immune tolerance breaks and immune mechanisms are against self-antigens. Apoptosis is one of the important mechanisms in maintaining the tolerance and eliminating the autoreactive lymphocyte clones...
November 16, 2017: Immunology Letters
https://www.readbyqxmd.com/read/29155216/communication-between-genomic-and-non-genomic-signaling-events-coordinate-steroid-hormone-actions
#18
Sandi R Wilkenfeld, Chenchu Lin, Daniel E Frigo
Steroid hormones are lipophilic molecules produced in one cell that can travel great distances within the body to elicit biological effects in another cell. In the canonical pathway, steroid hormone binding to a nuclear receptor (NR), often in the cytoplasm, causes the receptor to undergo a conformational change and translocate to the nucleus, where it interacts with specific sequences of DNA to regulate transcription. In addition to the classical genomic mechanism of action, alternate mechanisms of steroid activity have emerged that involve rapid, non-genomic signaling...
November 16, 2017: Steroids
https://www.readbyqxmd.com/read/29155147/selective-and-membrane-permeable-small-molecule-inhibitors-of-nicotinamide-n-methyltransferase-reverse-high-fat-diet-induced-obesity-in-mice
#19
Harshini Neelakantan, Virginia Vance, Michael D Wetzel, Hua-Yu Leo Wang, Stanton F McHardy, Celeste C Finnerty, Jonathan D Hommel, Stanley J Watowich
There is a critical need for new mechanism-of-action drugs that reduce the burden of obesity and associated chronic metabolic comorbidities. A potentially novel target to treat obesity and type 2 diabetes is nicotinamide-N-methyltransferase (NNMT), a cytosolic enzyme with newly identified roles in cellular metabolism and energy homeostasis. To validate NNMT as an anti-obesity drug target, we investigated the permeability, selectivity, mechanistic, and physiological properties of a series of small molecule NNMT inhibitors...
November 15, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29155118/patterns-of-neuroendocrine-coupling-in-9-year-old-children-effects-of-sex-body-mass-index-and-life-stress
#20
Sarah R Black, Matthew D Lerner, Elizabeth A Shirtcliff, Daniel N Klein
Previous investigations have explored stress and pubertal hormones in parallel; it has been a recent development, however, to explore the relationships between different hormones during puberty, and how this hormonal cross-talk may be influenced by the environment. The current study investigated neuroendocrine coupling, or the extent to which hormones are correlated within the individual, and also investigated early life stressors that may influence coupling. Participants were 405 adrenarcheal children (mean Tanner stage=1...
November 16, 2017: Biological Psychology
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