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https://www.readbyqxmd.com/read/28743168/calorie-restriction-reverses-age-related-alteration-of-cavernous-neurovascular-structure-in-the-rat
#1
A Limanjaya, K-M Song, M-J Choi, K Ghatak, N N Minh, D H Kang, J Ock, G N Yin, H Y Chung, J-K Ryu, J-K Suh
Calorie restriction (CR) refers to a reduction of calorie intake without compromising essential nutrients to avoid malnutrition. CR has been established as a non-genetic method of altering longevity and attenuating biological changes associated with aging. Aging is also an important risk factor for erectile dysfunction. The aim of this study was to examine whether CR diet can reverse the age-related alterations of erectile tissue in the aged rat. Four groups of rats were used: young rats (7 months) + ad libitum, aged rats (22 months) + ad libitum, young rats + CR diet, and aged rats + CR diet...
July 25, 2017: Andrology
https://www.readbyqxmd.com/read/28743086/effect-of-cinnamon-cinnamomum-verum-bark-essential-oil-on-the-halitosis-associated-bacterium-solobacterium-moorei-and-in-vitro-cytotoxicity
#2
Geneviève LeBel, Bruno Haas, Andrée-Ann Adam, Marie-Pier Veilleux, Amel Ben Lagha, Daniel Grenier
OBJECTIVES: Halitosis, also known as bad breath or oral malodour, is a condition affecting a large proportion of the population. Solobacterium moorei is a Gram-positive anaerobic bacterium that has been specifically associated with halitosis. In this study, we investigated the effects of essential oils, more particularly cinnamon bark oil, on growth, biofilm formation, eradication and killing, as well as hydrogen sulfide (H2S) production by S. moorei. METHODS: A broth microdilution assay was used to determine the antibacterial activity of essential oils...
July 12, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28743024/a-method-to-evaluate-the-quality-of-clinical-gene-panel-sequencing-data-for-single-nucleotide-variant-detection
#3
Chung Lee, Joon S Bae, Gyu H Ryu, Nayoung K D Kim, Donghyun Park, Jongsuk Chung, Sungkyu Kyung, Je-Gun Joung, Hyun-Tae Shin, Seung-Ho Shin, Younglan Kim, Byung S Kim, Hojun Lee, Kyoung-Mee Kim, Jung-Sun Kim, Woong-Yang Park, Dae-Soon Son
Customized gene-panel tests, based on next-generation sequencing, have demonstrated their usefulness in a plethora of clinical settings. As with other clinical diagnostic techniques, gene-panel sequencing for clinical purposes requires precise quality control (QC) measures to ensure its reliability. Only detected variants are currently recorded in clinical reports; however, identifying whether a nondetected variant is a true or false negative is regarded essential in a clinical setting and, thus, a comprehensive QC measure is in demand...
July 22, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28743004/association-of-m18bp1-knl2-with-cenp-a-nucleosome-is-essential-for-centromere-formation-in-non-mammalian-vertebrates
#4
Tetsuya Hori, Wei-Hao Shang, Masatoshi Hara, Mariko Ariyoshi, Yasuhiro Arimura, Risa Fujita, Hitoshi Kurumizaka, Tatsuo Fukagawa
Centromeres are specified and maintained by sequence-independent epigenetic mechanisms through the incorporation of CENP-A into centromeres. Given that CENP-A incorporation requires the Mis18 complex to be in the centromere region, it is necessary to precisely understand how the Mis18 complex localizes to the centromere region. Here, we showed that centromere localization of the Mis18 complex depends on CENP-A, but not CENP-C or CENP-T, in chicken DT40 cells. Furthermore, we demonstrated that M18BP1/KNL2, a member of the Mis18 complex, contained the CENP-C-like motif in chicken and other vertebrates, which is essential for centromere localization and M18BP1/KNL2 function in DT40 cells...
July 24, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28742939/disparate-peroxisome-related-defects-in-arabidopsis-pex6-and-pex26-mutants-link-peroxisomal-retrotranslocation-and-oil-body-utilization
#5
Kim L Gonzalez, Wendell A Fleming, Yun-Ting Kao, Zachary J Wright, Savina V Venkova, Meredith J Ventura, Bonnie Bartel
Catabolism of fatty acids stored in oil bodies is essential for Arabidopsis seed germination and seedling development. This fatty acid breakdown occurs in peroxisomes, organelles that sequester oxidative reactions. Import of peroxisomal enzymes is facilitated by peroxins including PEX5, a receptor that delivers cargo proteins from the cytosol to the peroxisomal matrix. After cargo delivery, a complex of the PEX1 and PEX6 ATPases and the PEX26 tail-anchored membrane protein removes ubiquitinated PEX5 from the peroxisomal membrane...
July 25, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28742931/dynamics-of-lipids-and-metabolites-during-the-cell-cycle-of-chlamydomonas-reinhardtii
#6
Jessica Jüppner, Umarah Mubeen, Andrea Leisse, Camila Caldana, Henrike Brust, Martin Steup, Marion Herrmann, Dirk Steinhauser, Patrick Giavalisco
Metabolites and lipids are the final products of enzymatic processes, distinguishing the different cellular functions and activities of single cells or whole tissues. Understanding these cellular functions within a well-established model system, requires a systemic collection of molecular and physiological information. In the current report, the green algae Chlamydomonas reinhardtii was selected to establish a comprehensive workflow for the detailed multi-omics analysis of a synchronously growing cell culture system...
July 25, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28742876/expression-of-uncharacterized-male-germ-cell-specific-genes-and-discovery-of-novel-sperm-tail-proteins-in-mice
#7
Jun Tae Kwon, Sera Ham, Suyeon Jeon, Youil Kim, Seungmin Oh, Chunghee Cho
The identification and characterization of germ cell-specific genes are essential if we hope to comprehensively understand the mechanisms of spermatogenesis and fertilization. Here, we searched the mouse UniGene databases and identified 13 novel genes as being putatively testis-specific or -predominant. Our in silico and in vitro analyses revealed that the expressions of these genes are testis- and germ cell-specific, and that they are regulated in a stage-specific manner during spermatogenesis. We generated antibodies against the proteins encoded by seven of the genes to facilitate their characterization in male germ cells...
2017: PloS One
https://www.readbyqxmd.com/read/28742851/knowledge-attitude-and-practice-for-cervical-cancer-prevention-and-control-among-women-of-childbearing-age-in-hossana-town-hadiya-zone-southern-ethiopia-community-based-cross-sectional-study
#8
Yitagesu Habtu Aweke, Samuel Yohannes Ayanto, Tariku Laelago Ersado
BACKGROUND: Cervical cancer is the second most common female cancer which Ethiopia put a strategic goal to reduce its incidence and mortality by 2020. Lack of knowledge and poor attitude towards the disease and risk factors can affect screening practice and development of preventive behavior for cervical cancer. The aim of this study was to assess knowledge, attitude, practices and factors for each domain for cervical cancer among women of child bearing age in Hossana town, Southern, Ethiopia...
2017: PloS One
https://www.readbyqxmd.com/read/28742826/macromolecular-biosynthetic-parameters-and-metabolic-profile-in-different-life-stages-of-leishmania-braziliensis-amastigotes-as-a-functionally-less-active-stage
#9
Marlene Jara, Maya Berg, Guy Caljon, Geraldine de Muylder, Bart Cuypers, Denis Castillo, Ilse Maes, María Del Carmen Orozco, Manu Vanaerschot, Jean-Claude Dujardin, Jorge Arevalo
It was recently hypothesized that Leishmania amastigotes could constitute a semi-quiescent stage characterized by low replication and reduced metabolic activity. This concept developed with Leishmania (Leishmania) mexicana and Leishmania (Leishmania) major models might explain numerous clinical and sub-clinical features of Leishmania (Viannia) braziliensis infections, like reactivation of the disease, non-response to chemotherapy or asymptomatic infections. We compared here in vitro the proliferative capability of L...
2017: PloS One
https://www.readbyqxmd.com/read/28742677/committee-opinion-no-712-intrapartum-management-of-intraamniotic-infection
#10
(no author information available yet)
Intraamniotic infection, also known as chorioamnionitis, is an infection with resultant inflammation of any combination of the amniotic fluid, placenta, fetus, fetal membranes, or decidua. Intraamniotic infection is a common condition noted among preterm and term parturients. However, most cases of intraamniotic infection detected and managed by obstetrician-gynecologists or other obstetric care providers will be noted among term patients in labor. Intraamniotic infection can be associated with acute neonatal morbidity, including neonatal pneumonia, meningitis, sepsis, and death...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28742676/committee-opinion-no-711-opioid-use-and-opioid-use-disorder-in-pregnancy
#11
(no author information available yet)
Opioid use in pregnancy has escalated dramatically in recent years, paralleling the epidemic observed in the general population. To combat the opioid epidemic, all health care providers need to take an active role. Pregnancy provides an important opportunity to identify and treat women with substance use disorders. Substance use disorders affect women across all racial and ethnic groups and all socioeconomic groups, and affect women in rural, urban, and suburban populations. Therefore, it is essential that screening be universal...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28742671/committee-opinion-no-712-summary-intrapartum-management-of-intraamniotic-infection
#12
(no author information available yet)
Intraamniotic infection, also known as chorioamnionitis, is an infection with resultant inflammation of any combination of the amniotic fluid, placenta, fetus, fetal membranes, or decidua. Intraamniotic infection is a common condition noted among preterm and term parturients. However, most cases of intraamniotic infection detected and managed by obstetrician-gynecologists or other obstetric care providers will be noted among term patients in labor. Intraamniotic infection can be associated with acute neonatal morbidity, including neonatal pneumonia, meningitis, sepsis, and death...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28742670/committee-opinion-no-711-summary-opioid-use-and-opioid-use-disorder-in-pregnancy
#13
(no author information available yet)
Opioid use in pregnancy has escalated dramatically in recent years, paralleling the epidemic observed in the general population. To combat the opioid epidemic, all health care providers need to take an active role. Pregnancy provides an important opportunity to identify and treat women with substance use disorders. Substance use disorders affect women across all racial and ethnic groups and all socioeconomic groups, and affect women in rural, urban, and suburban populations. Therefore, it is essential that screening be universal...
August 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28742513/kallistatin-double-edged-role-in-angiogenesis-apoptosis-and-oxidative-stress
#14
Julie Chao, Pengfei Li, Lee Chao
Kallistatin via its two structural elements - an active site and a heparin-binding domain - displays double-edged function in angiogenesis, apoptosis and oxidative stress. First, kallistatin has both anti-angiogenic and pro-angiogenic effects. Kallistatin treatment attenuates angiogenesis and tumor growth in cancer-bearing mice. Kallistatin via its heparinbinding site inhibits angiogenesis by blocking vascular endothelial growth factor (VEGF)- induced growth, migration and adhesion of endothelial cells. Conversely, kallistatin via the active site promotes neovascularization by stimulating VEGF levels in endothelial progenitor cells...
July 26, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28742489/diy-biology-hacking-goes-viral
#15
(no author information available yet)
The D-It-Yourself Biology (DIYBio) movement has gained significant traction in recent years; morphing from counter culture to an essential component of biology's future development.
September 1, 2016: Science Progress
https://www.readbyqxmd.com/read/28742441/principles-of-care-for-women-experiencing-intimate-partner-violence-views-of-expert-japanese-health-professionals-and-advocates
#16
Maki Umeda, Yaeko Kataoka, Elizabeth Miller
In Japan, interventions for Intimate Partner Violence (IPV) in the health care setting are rare, partly due to Japanese cultural norms that marginalize women's IPV experiences. A thematic analysis of narratives of eight Japanese health professionals who are experts in IPV care identified shared core values and practices that have guided their development of culturally relevant IPV interventions: supporting women's autonomy to define what is at stake for her, appreciating unique trajectories and timing for recovery, and practicing shared decision making...
July 25, 2017: Health Care for Women International
https://www.readbyqxmd.com/read/28742403/lpxc-inhibitors-a-patent-review-2010-2016
#17
Dmitrii V Kalinin, Ralph Holl
The Zn(2+)-dependent deacetylase LpxC is an essential enzyme of lipid A biosynthesis in Gram-negative bacteria and a promising target for the development of antibiotics selectively combating Gram-negative pathogens. Researchers from industry and academia have synthesized structurally diverse LpxC inhibitors, exhibiting different LpxC inhibitory and antibacterial activities. Areas covered: A brief introduction into the structure and function of LpxC, showing its suitability as antibacterial target, along with the structures of several reported LpxC inhibitors, is given...
July 25, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28742340/structure-and-electrical-transport-relations-in-ba-zr-pr-o3-%C3%AE-perovskites
#18
Isabel Antunes, Ulises Amador, Adriana Alves, Maria Rosário Correia, Clemens Ritter, Jorge Ribeiro Frade, Domingo Pérez-Coll, Glenn C Mather, Duncan Paul Fagg
Members of the perovskite solid solution BaZr1-xPrxO3-δ (0.2 ≤ x ≤ 0.8) with potential high-temperature electrochemical applications were synthesized via mechanical activation and high-temperature annealing at 1250 °C. Structural properties were examined by Rietveld analysis of neutron powder diffraction and Raman spectroscopy at room temperature, indicating rhombohedral symmetry (space group R3̅c) for members x = 0.2 and 0.4 and orthorhombic symmetry (Imma) for x = 0.6 and 0.8. The sequence of phase transitions for the complete solid solution from BaZrO3 to BaPrO3 is Pm3̅m → R3̅c → Imma → Pnma...
July 25, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28742336/quantum-chemically-estimated-abraham-solute-parameters-using-multiple-solvent-water-partition-coefficients-and-molecular-polarizability
#19
Yuzhen Liang, Ruichang Xiong, Stanley I Sandler, Dominic M Di Toro
Polyparameter Linear Free Energy Relationships (pp-LFERs), also called Linear Solvation Energy Relationships (LSERs), are used to predict many environmentally significant properties of chemicals. A method is presented for computing the necessary chemical parameters, the Abraham parameters (AP), used by many pp-LFERs. It employs quantum chemical calculations and uses only the chemical's molecular structure. The method computes the Abraham E parameter using density functional theory computed molecular polarizability and the Clausius-Mossotti equation relating the index refraction to the molecular polarizability, estimates the Abraham V as the COSMO calculated molecular volume, and computes the remaining AP S, A, and B jointly with a multiple linear regression using sixty-five solvent-water partition coefficients computed using the quantum mechanical COSMO-SAC solvation model...
July 25, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28742335/5-formylcytosine-yields-dna-protein-cross-links-in-nucleosome-core-particles
#20
Fengchao Li, Yingqian Zhang, Jing Bai, Marc M Greenberg, Zhen Xi, Chuanzheng Zhou
In situ generation of 5-formylcytosine (5fC) in nucleosome core particles (NCPs) reveals that 5fC leads to essential DNA-protein cross-links (DPCs). Mechanistic studies using chemical models and mutated histones demonstrate that DPCs form reversibly between the formyl function of 5fC and primary amines on histones. These results suggest that DPC formation from 5fC in chromatin occurs in addition to its role in DNA demethylation.
July 25, 2017: Journal of the American Chemical Society
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