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Ramy K A Sayed, Marisol Fernández-Ortiz, María E Diaz-Casado, Iryna Rusanova, Ibtissem Rahim, Germaine Escames, Luis C López, Doaa M Mokhtar, Darío Acuña-Castroviejo
To gain insight into the mechanism of sarcopenia and the protective effect of melatonin, the gastrocnemius muscles of young (3-4 months), early-aged (12 months), and old-aged (24 months) wild type C57BL/6J female mice, were examined by magnetic resonance and microscopy. Locomotor activity, lactate production and nuclear apoptosis were also assessed. The results support the early onset of sarcopenia at 12 months of age, with reduction of muscle fibers' number, muscle weight/body weight ratio, lactate, and locomotor activity...
March 19, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
Jennifer F Knight, Vanessa Y C Sung, Elena Kuzmin, Amber L Couzens, Danielle A de Verteuil, Colin D H Ratcliffe, Paula P Coelho, Radia M Johnson, Payman Samavarchi-Tehrani, Tina Gruosso, Harvey W Smith, Wontae Lee, Sadiq M Saleh, Dongmei Zuo, Hong Zhao, Marie-Christine Guiot, Ryan R Davis, Jeffrey P Gregg, Christopher Moraes, Anne-Claude Gingras, Morag Park
Triple-negative breast cancers (TNBCs) display a complex spectrum of mutations and chromosomal aberrations. Chromosome 5q (5q) loss is detected in up to 70% of TNBCs, but little is known regarding the genetic drivers associated with this event. Here, we show somatic deletion of a region syntenic with human 5q33.2-35.3 in a mouse model of TNBC. Mechanistically, we identify KIBRA as a major factor contributing to the effects of 5q loss on tumor growth and metastatic progression. Re-expression of KIBRA impairs metastasis in vivo and inhibits tumorsphere formation by TNBC cells in vitro...
March 20, 2018: Cell Reports
Adina S Fischer, M Catalina Camacho, Tiffany C Ho, Susan Whitfield-Gabrieli, Ian H Gotlib
Importance: Adolescence is a neurodevelopmental period during which experience-dependent plasticity in brain circuitry may confer vulnerability to depression as well as resilience to disorder. Little is known, however, about the neural mechanisms that underlie resilience during this critical period of brain development. Objective: To examine neural functional connectivity correlates of resilience in adolescent females at high and low familial risk for depression who did and did not develop the disorder...
March 21, 2018: JAMA Psychiatry
Pavla Bartošová-Sojková, Alena Lövy, Cecile C Reed, Martina Lisnerová, Tereza Tomková, Astrid S Holzer, Ivan Fiala
INTRODUCTION: Intertidal rock pools where fish and invertebrates are in constant close contact due to limited space and water level fluctuations represent ideal conditions to promote life cycles in parasites using these two alternate hosts and to study speciation processes that could contribute to understanding the roles of parasitic species in such ecosystems. MATERIAL AND METHODS: Gall bladder and liver samples from five clinid fish species (Blenniiformes: Clinidae) were morphologically and molecularly examined to determine the diversity, prevalence, distribution and host specificity of Ceratomyxa parasites (Cnidaria: Myxozoa) in intertidal habitats along the coast of South Africa...
2018: PloS One
Weijuan Du, Lisha Jin, Liping Li, Wei Wang, Su Zeng, Huidi Jiang, Hui Zhou
The tuber of Corydalis yanhusuo is a famous traditional Chinese medicine and found to have potent pharmacological effects, such as antinociceptive, antitumor, antibacterial, anti-inflammatory, and anti-depressive activities. Although there are several methods to be developed for the analysis and detection of the bioactive ingredients' alkaloids, so far, only few prominent alkaloids could be quantified, and in vitro and in vivo changes of comprehensive alkaloids after oral administration are still little known...
March 21, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Wies Maarse, Chantal W B Boonacker, Henriette F N Swanenburg de Veye, Moshe Kon, Corstiaan C Breugem, Aebele B Mink van der Molen, Johannes J M van Delden
OBJECTIVES: The prenatal diagnosis of oral clefts (OCs) by ultrasound can pose an ethical dilemma. The purpose of this study was to obtain insight into the psychosocial and moral considerations of prospective parents concerning OCs, the burden of OCs and parents' attitude toward possible termination of pregnancy (TOP) in order to improve counseling in the future. DESIGN: Between August 2011 and August 2014, a prospective cohort questionnaire study was administered...
January 1, 2018: Cleft Palate-craniofacial Journal
Haibo Tang, Junming Luo, Xin Long Tian, Yuanyuan Dong, Jing Li, Mingrui Liu, Lina Liu, Huiyu Song, Shijun Liao
Developing cheap and stable electrocatalysts to replace Pt for the oxygen reduction reaction (ORR) is recognized as the key factor to achieve the large-scale application of fuel cells. In this paper, 3D porous Co-doped vanadium nitride (VN) nanosheet-assembled microflowers are prepared with a facile solvothermal approach followed by nitridation at 500°C in NH3. It is found that the microflower morphology and the Co doping both significantly enhance the ORR performance of the materials. Since the unique 3D porous structure provides higher specific surface area and more active sites as well as enriching the d electrons of V via doping, Co also improves the intrinsic activity of VN...
March 21, 2018: ACS Applied Materials & Interfaces
Meghan R Swanson, Mark D Shen, Jason J Wolff, Jed T Elison, Robert W Emerson, Martin A Styner, Heather C Hazlett, Kinh Truong, Linda R Watson, Sarah Paterson, Natasha Marrus, Kelly N Botteron, Juhi Pandey, Robert T Schultz, Stephen R Dager, Lonnie Zwaigenbaum, Annette M Estes, Joseph Piven
BACKGROUND: Younger siblings of children with autism spectrum disorder (ASD) are themselves at increased risk for ASD and other developmental concerns. It is unclear if infants who display developmental concerns, but are unaffected by ASD, share similar or dissimilar behavioral and brain phenotypes to infants with ASD. Most individuals with ASD exhibit heterogeneous difficulties with language, and their receptive-expressive language profiles are often atypical. Yet, little is known about the neurobiology that contributes to these language difficulties...
November 2017: Biological Psychiatry: Cognitive Neuroscience and Neuroimaging
Marco A Marra, Marta Strzelczak, Petra J C Heesterbeek, Sebastiaan A W van de Groes, Dennis Janssen, Bart F J M Koopman, Nico Verdonschot, Ate B Wymenga
PURPOSE: When downsizing the femoral component to prevent mediolateral overhang, notching of the anterior femoral cortex may occur, which could be solved by flexing the femoral component. In this study, we investigated the effect of flexion of the femoral component on patellar tendon moment arm, patellofemoral forces and kinematics in posterior-referencing CR-TKA. Our hypothesis was that flexion of the femoral component increases the patellar tendon moment arm, reduces the patellofemoral forces and provides stable kinematics...
March 20, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Elizabeth I Pierpont, Erin McCoy, Kelly E King, Rich S Ziegler, Ryan Shanley, David Nascene, Gerald V Raymond, Rachel Phelan, Troy C Lund, Paul J Orchard, Weston P Miller
Objective: Hematopoietic stem cell transplantation (HSCT) is the only treatment known to slow or halt inflammatory demyelination among boys with the cerebral form of X-linked adrenoleukodystrophy (cALD), a devastating childhood condition affecting the central nervous system. HSCT can lead to a range of adverse outcomes including fatality. Previous studies have examined the potential predictors of post-HSCT survival and neurologic functioning. However, little is known about patients' daily-life adaptive functional outcomes (i...
March 2018: Annals of Clinical and Translational Neurology
Felix Müller, Patrick C Dolder, André Schmidt, Matthias E Liechti, Stefan Borgwardt
LSD is an ambiguous substance, said to mimic psychosis and to improve mental health in people suffering from anxiety and depression. Little is known about the neuronal correlates of altered states of consciousness induced by this substance. Limited previous studies indicated profound changes in functional connectivity of resting state networks after the administration of LSD. The current investigation attempts to replicate and extend those findings in an independent sample. In a double-blind, randomized, cross-over study, 100 μg LSD and placebo were orally administered to 20 healthy participants...
2018: NeuroImage: Clinical
Richard Bwanika, Charles D Kato, Johnson Welishe, Daniel C Mwandah
Background: Malaria and helminths share the same geographical distribution in tropical Africa. Studies of the interaction of helminth and malaria co-infection in humans have been few and are mainly epidemiological, with little information on cellular immune responses. This study aimed to determine Cytokine profiles among patients co-infected with Plasmodium falciparum malaria and soil borne helminth attending Kampala International University Teaching Hospital (KIU). Methods: A case control study of 240 patients were recruited at KIU teaching hospital...
2018: Allergy, Asthma, and Clinical Immunology
Calvin K Lee, Jaime de Anda, Amy E Baker, Rachel R Bennett, Yun Luo, Ernest Y Lee, Joshua A Keefe, Joshua S Helali, Jie Ma, Kun Zhao, Ramin Golestanian, George A O'Toole, Gerard C L Wong
Using multigenerational, single-cell tracking we explore the earliest events of biofilm formation by Pseudomonas aeruginosa During initial stages of surface engagement (≤20 h), the surface cell population of this microbe comprises overwhelmingly cells that attach poorly (∼95% stay <30 s, well below the ∼1-h division time) with little increase in surface population. If we harvest cells previously exposed to a surface and direct them to a virgin surface, we find that these surface-exposed cells and their descendants attach strongly and then rapidly increase the surface cell population...
March 20, 2018: Proceedings of the National Academy of Sciences of the United States of America
Refilwe Given Kudumela, Peter Masoko
There is very little scientific information on indigenous plants used for medicinal purposes. Therefore, the aim of the study was to evaluate the antibacterial and antioxidant activities of the leaves of Commelina africana, Elephantorrhiza elephantina, Dombeya rotundifolia, and the whole plant excluding the roots of Schkuhria pinnata indigenous medicinal plants from the Limpopo Province, which may be used for the treatment in humans infected with bacterial pathogens. The screening of different phytoconstituents using standard methods revealed the presence of terpenoids, flavonoids, tannins, and saponins...
January 2018: J Evid Based Integr Med
Beth E Meyerson, Alissa Davis, Jon D Agley, David J Shannon, Carrie A Lawrence, Priscilla T Ryder, Karleen Ritchie, Ruth Gassman
BACKGROUND: Pharmacies have much to contribute to the health of people who inject drugs (PWID) and to community efforts in HIV and hepatitis C (HCV) prevention through syringe access. However, little is known about what predicts pharmacy syringe sales without a prescription. OBJECTIVE: To identify factors predicting pharmacy syringes sales to PWID. METHODS: A hybrid staggered online survey of 298 Indiana community pharmacists occurred from July-September 2016 measuring pharmacy policy, practice, and pharmacist perceptions about syringe sales to PWID...
March 17, 2018: International Journal on Drug Policy
Vajira R Wanniarachchi, Lettee Dametto, Crystal Sweetman, Yuri Shavrukov, David A Day, Colin L D Jenkins, Kathleen L Soole
Plants have a non-energy conserving bypass of the classical mitochondrial cytochrome c pathway, known as the alternative respiratory pathway (AP). This involves type II NAD(P)H dehydrogenases (NDs) on both sides of the mitochondrial inner membrane, ubiquinone, and the alternative oxidase (AOX). The AP components have been widely characterised from Arabidopsis, but little is known for monocot species. We have identified all the genes encoding components of the AP in rice and barley and found the key genes which respond to oxidative stress conditions...
March 20, 2018: International Journal of Molecular Sciences
Patricia Sobradillo Ecenarro, Marta Inchausti Iguiñiz, Sandra Pedrero Tejada, Nuria Marina Malanda, María Alfonso Imizcoz, Laura Ansola Marlasca, Bernardino Alcázar Navarrete
Chronic obstructive pulmonary disease is progressive and in its advanced stage is associated with major disability. Previous studies suggest that patients with this disease receive little palliative care, even in very advanced stages. Given this, our objectives were to describe the clinical practice of Spanish pulmonologists in the care of patients with end-stage chronic obstructive pulmonary disease, to identify potential barriers to implementing palliative care in these patients and to correlate these responses with doctor's years of experience...
March 20, 2018: COPD
Bilal Afsar, Asad Shahjehan, Sadia Cheema, Farheen Javed
INTRODUCTION: People differ considerably in the way in which they express and experience their nursing careers. The positive effects associated with having a calling may differ substantially based on individuals' abilities to live out their callings. In a working world where many individuals have little to no choice in their type of employment and thus are unable to live out a calling even if they have one, the current study examined how perceiving a calling and living a calling interacted to predict organizational commitment, organizational citizenship behavior, and job stress with career commitment mediating the effect of the interactions on the three outcome variables...
March 1, 2018: Journal of Transcultural Nursing: Official Journal of the Transcultural Nursing Society
J M Ryan, A C Rogers, E J Hannan, A Mastrosimone, M Arumugasamy
INTRODUCTION: Morgagni hernias rarely present in adult life and, thus, little data exist on the optimal method of surgical repair. The laparoscopic approach has grown in popularity since the first reported case in 1992. This article showcases a method for laparoscopic repair of Morgagni hernias using both primary closure and mesh reinforcement. OPERATIVE APPROACH: There were three obese women who presented in adulthood with cardiopulmonary symptoms; in all cases, the symptoms were attributable to local compressive effects of large Morgagni hernias...
March 19, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
Jan C van der Meijden, Michelle E Kruijshaar, Laurike Harlaar, Dimitris Rizopoulos, Nadine A M E van der Beek, Ans T van der Ploeg
OBJECTIVES: Pompe disease is a progressive metabolic myopathy for which enzyme replacement therapy (ERT) was approved in 2006. While various publications have examined the effects of ERT in classic-infantile patients and in adults, little has been published on ERT in children with non-classic presentations. STUDY DESIGN: This prospective study was conducted from June 1999 to May 2015. Seventeen patients from various countries participated. Outcome measures comprised muscle function (6-minute walk test, quick motor-function test (QMFT)), muscle strength (hand-held dynamometry; manual muscle testing), and lung function (FVC sitting and supine)...
March 19, 2018: Journal of Inherited Metabolic Disease
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