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https://www.readbyqxmd.com/read/29792825/g1-s-transcription-factor-copy-number-is-a-growth-dependent-determinant-of-cell-cycle-commitment-in-yeast
#1
Savanna Dorsey, Sylvain Tollis, Jing Cheng, Labe Black, Stephen Notley, Mike Tyers, Catherine A Royer
To understand how commitment to cell division in late G1 phase (Start) is controlled by growth and nutrients in budding yeast, we determined the absolute concentrations of the G1/S transcription factors SBF (composed of Swi4 and Swi6) and MBF (composed of Mbp1 and Swi6), the transcriptional repressor Whi5, and the G1 cyclins, Cln1 and Cln2, in single live yeast cells using scanning number and brightness (sN&B) microscopy. In rich medium, Whi5, Mbp1, and Swi6 concentrations were independent of cell size, whereas Swi4 concentration doubled in G1 phase, leading to a size-dependent decrease in the Whi5/Swi4 ratio...
May 23, 2018: Cell Systems
https://www.readbyqxmd.com/read/29792733/feasibility-and-acceptability-of-nurse-led-primary-palliative-care-for-older-adults-with-chronic-conditions-a-pilot-study
#2
Shigeko Seiko Izumi, Basilia Basin, Margo Presley, Jean McCalmont, Jon P Furuno, Brie Noble, Judith G Baggs, J Randall Curtis
BACKGROUND: Many older adults live with serious illness for years before their death. Nurse-led primary palliative care could improve their quality of life and ability to stay in their community. OBJECTIVES: To assess feasibility and acceptability of a nurse-led Transitional Palliative Care (TPC) program for older adults with serious illness. METHODS: The study was a pilot trial of the TPC program in which registered nurses assisted patients with symptom management, communication with care providers, and advance care planning...
May 24, 2018: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/29792694/biomimetic-artificial-epigenetic-code-for-targeted-acetylation-of-histones
#3
Junichi Taniguchi, Yihong Feng, Ganesh N Pandian, Fumitaka Hashiya, Takuya Hidaka, Kaori Hashiya, Soyoung Park, Toshikazu Bando, Shinji Ito, Hiroshi Sugiyama
While the central role of locus-specific acetylation of histone proteins in eukaryotic gene expression is well established, the availability of designer tools to regulate acetylation at particular nucleosome sites remains limited. Here, we develop a unique strategy to introduce acetylation by constructing a bifunctional molecule designated Bi-PIP. Bi-PIP has a P300/CBP-selective bromodomain inhibitor (Bi) as a P300/CBP recruiter and a pyrrole-imidazole polyamide (PIP) as a sequence-selective DNA binder. Biochemical assays verified that Bi-PIPs recruit P300 to the nucleosomes having their target DNA sequences and extensively accelerate acetylation...
May 24, 2018: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29792687/co-mobility-of-gabarap-and-phosphatidylinositol-4-kinase-2a-on-cytoplasmic-vesicles
#4
Yan Chen, Hui-Qiao Sun, John P Eichorst, Joseph P Albanesi, Helen Yin, Joachim D Mueller
We previously reported that recruitment of the Type IIA phosphatidylinositol 4-kinase (PI4K2A) to autophagosomes by GABARAP, a member of the Atg8 family of autophagy-related proteins, is important for autophagosome-lysosome fusion. Because both PI4K2A and GABARAP have also been implicated in the intracellular trafficking of plasma membrane receptors in the secretory/endocytic pathway, we characterized their interaction in cells under non-autophagic conditions. Fluorescence fluctuation spectroscopy measurements revealed that GABARAP exists predominantly as a cytosolic monomer in live cells, but is recruited to small cytoplasmic vesicles upon overexpression of PI4K2A...
May 24, 2018: Biochemistry
https://www.readbyqxmd.com/read/29792672/biosynthesis-of-lincosamide-antibiotics-reactions-associated-with-degradation-and-detoxification-pathways-play-a-constructive-role
#5
Daozhong Zhang, Zhijun Tang, Wen Liu
Natural products typically are small molecules produced by living organisms. These products possess a wide variety of biological activities and thus have historically played a critical role in medicinal chemistry and chemical biology either as chemotherapeutic agents or as useful tools. Natural products are not synthesized for use by human beings; rather, living organisms produce them in response to various biochemical processes and environmental concerns, both internal and external. These processes/concerns are often dynamic and thus motivate the diversification, optimization, and selection of small molecules in line with changes in biological function...
May 24, 2018: Accounts of Chemical Research
https://www.readbyqxmd.com/read/29792355/patient-activation-among-people-living-with-hiv-a-cross-sectional-comparative-analysis-with-people-living-with-diabetes-mellitus
#6
Claire E Kendall, Esther S Shoemaker, Lois Crowe, Paul MacPherson, Marissa L Becker, Eleni Levreault, Lisa M Boucher, Ron Rosenes, Christine Bibeau, Philip Lundrigan, Clare E Liddy
Standardized self-management supports are an integral part of care delivery for many chronic conditions. We used the validated Patient Activation Measure (PAM®) to assess level of engagement for self-management from a sample of 165 people living with HIV (PLWH) and 163 people with diabetes. We conducted multivariable logistic regression to assess associations between demographics and PAM® scores. PLWH had high levels of activation that were no different from those of people with diabetes (mean score = 67...
May 24, 2018: AIDS Care
https://www.readbyqxmd.com/read/29792228/field-evaluation-of-an-immunochromatographic-test-for-diagnosis-of-cystic-and-alveolar-echinococcosis
#7
Chun-Hua Gao, Jun-Yun Wang, Feng Shi, Dietmar Steverding, Xia Wang, Yue-Tao Yang, Xiao-Nong Zhou
BACKGROUND: The larval stages of the tapeworms Echinocoocus granulosus and Echinococcus multilocularis are the causative agents of human cystic echinococcosis (CE) and human alveolar echinococcosis (AE), respectively. Both CE and AE are chronic diseases characterised by long asymptomatic periods of many years. However, early diagnosis of the disease is important if treatment and management of echinococcosis patients are to be successful. METHODS: A previously developed rapid diagnostic test (RDT) for the differential detection of CE and AE was evaluated under field conditions with finger prick blood samples taken from 1502 people living in the Ganzi Tibetan Autonomous Prefecture, China, a region with a high prevalence for both forms of human echinococcosis...
May 23, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29792216/hiv-1-tat-phosphorylation-on-ser-16-residue-modulates-hiv-1-transcription
#8
Andrey Ivanov, Xionghao Lin, Tatiana Ammosova, Andrey V Ilatovskiy, Namita Kumari, Hatajai Lassiter, Nowah Afangbedji, Xiaomei Niu, Michael G Petukhov, Sergei Nekhai
BACKGROUND: HIV-1 transcription activator protein Tat is phosphorylated in vitro by CDK2 and DNA-PK on Ser-16 residue and by PKR on Tat Ser-46 residue. Here we analyzed Tat phosphorylation in cultured cells and its functionality. RESULTS: Mass spectrometry analysis showed primarily Tat Ser-16 phosphorylation in cultured cells. In vitro, CDK2/cyclin E predominantly phosphorylated Tat Ser-16 and PKR-Tat Ser-46. Alanine mutations of either Ser-16 or Ser-46 decreased overall Tat phosphorylation...
May 23, 2018: Retrovirology
https://www.readbyqxmd.com/read/29792114/innovating-urinary-catheter-design-an-introduction-to-the-engineering-challenge
#9
Cathy Murphy
Every day, people around the world rely on intermittent and indwelling urinary catheters to manage bladder dysfunction, but the potential or actual harm caused by these devices is well-recognised. Current catheter designs can cause urinary tract infection and septicaemia, bladder and urethral trauma and indwelling devices frequently become blocked. Furthermore, the devices can severely disrupt users' lives, limiting their daily activities and can be costly to manage for healthcare providers. Despite this, little significant design innovation has taken place in the last 80 years...
May 1, 2018: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29791929/documenting-routinely-what-matters-to-people-standardized-headings-for-health-records-of-patients-with-chronic-health-conditions
#10
Birgit Prodinger, Paul Rastall, Dipak Kalra, Darren Wooldridge, Iain Carpenter
OBJECTIVE:  Specifying the content in electronic health records (EHRs) through standardized headings based on international reference classifications will facilitate their semantic interoperability. The objective of this study was to specify potential chapter headings for EHRs aligned with the World Health Organization's (WHO) International Classification of Functioning, Disability, and Health (ICF) based on the perspectives of people living with chronic health conditions, carers, and professionals...
April 2018: Applied Clinical Informatics
https://www.readbyqxmd.com/read/29791636/family-health-strategy-relevance-to-the-functional-capacity-of-older-people
#11
Carla Silvana de Oliveira E Silva, Mayke Müller Soares Barbosa, Lucinéia de Pinho, Maria Fernanda Santos Figueiredo, Caroline Oliveira Amaral, Franciele Ornelas Cunha, Elaine Cristina Santos Alves, Dulce Aparecida Barbosa
OBJECTIVE: to identify the functional capacity of older people based on their performance on basic activities of daily living. METHOD: a cross-sectional study, carried out through the record of the Family Health teams working in the urban area of a city in northern Minas Gerais, in 2015. To assess the functional capacity of 373 older people, the Katz Scale was applied, which includes dimensions on the performance of daily living activities. The interviews took place in the participants' households...
2018: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/29791633/elderly-and-caregiver-demand-proposal-for-a-care-need-classification
#12
Daniella Pires Nunes, Tábatta Renata Pereira de Brito, Ligiana Pires Corona, Tiago da Silva Alexandre, Yeda Aparecida de Oliveira Duarte
OBJECTIVE: To propose a care need classification for elderly people by identifying their functional demands. METHOD: Cross-sectional study carried out in São Paulo, in 2006, with 1,413 elderly (≥ 60 years old), participants in the Health, Well-being and Aging study (SABE - Saúde, Bem Estar e Envelhecimento). For the care need classification, we used the Guttman Scaling method e the frequency of assistance required by the elderly. RESULTS: The hierarchy of activities of daily living had good internal consistency (α = 0...
2018: Revista Brasileira de Enfermagem
https://www.readbyqxmd.com/read/29791604/translation-and-cultural-adaptation-of-the-stroke-impact-scale-2-0-sis-a-quality-of-life-scale-for-stroke
#13
Aline Dias Brandão, Natasha Bertocco Teixeira, Maria Claudia Brandão, Milena Carlos Vidotto, José Roberto Jardim, Mariana Rodrigues Gazzotti
BACKGROUND: No specific quality-of-life scale for stroke patients has previously been translated and evaluated for reproducibility, for use in the Portuguese language. Internationally, the instrument for this purpose is the Stroke Impact Scale 2.0 (SIS). Use of of SIS enables comprehensive analysis on the impact of mild and moderate stroke on patients' lives. The aims here were to translate SIS into Portuguese, adapt it culturally, evaluate its reproducibility and correlate it with SF-36 among stroke patients...
March 2018: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/29791487/patients-experiences-of-coping-with-idiopathic-pulmonary-fibrosis-and-their-recommendations-for-its-clinical-management
#14
Sameera Senanayake, Kim Harrison, Michael Lewis, Melitta McNarry, Joanne Hudson
BACKGROUND: Idiopathic Pulmonary Fibrosis (IPF) is a chronic, progressive and life-limiting condition. From a healthcare perspective it is vital to establish effective methods of improving the quality of remaining life in these patients. This requires a detailed understanding of the multiple impacts of an IPF diagnosis on the individual. METHODS: We sought to understand how patients coped with their initial diagnosis, how they live with the disease day-to-day, and their experiences and opinions of the professional support they receive...
2018: PloS One
https://www.readbyqxmd.com/read/29791483/structural-study-reveals-the-temperature-dependent-conformational-flexibility-of-tk-ptp-a-protein-tyrosine-phosphatase-from-thermococcus-kodakaraensis-kod1
#15
Hye-Yeoung Yun, Jinhyuk Lee, Hyunmin Kim, Hyojung Ryu, Ho-Chul Shin, Byung-Ha Oh, Bonsu Ku, Seung Jun Kim
Protein tyrosine phosphatases (PTPs) originating from eukaryotes or bacteria have been under intensive structural and biochemical investigation, whereas archaeal PTP proteins have not been investigated extensively; therefore, they are poorly understood. Here, we present the crystal structures of Tk-PTP derived from the hyperthermophilic archaeon Thermococcus kodakaraensis KOD1, in both the active and inactive forms. Tk-PTP adopts a common dual-specificity phosphatase (DUSP) fold, but it undergoes an atypical temperature-dependent conformational change in its P-loop and α4-α5 loop regions, switching between the inactive and active forms...
2018: PloS One
https://www.readbyqxmd.com/read/29791252/immediate-effects-of-a-distal-gait-modification-during-stair-descent-in-individuals-with-patellofemoral-pain
#16
Sandra Aliberti, Bruno Mezêncio, Alberto Carlos Amadio, Julio Cerca Serrão, Luis Mochizuki
BACKGROUND: Knee pain during stair managing is a common complaint among individuals with PFP and can negatively affect their activities of daily living. Gait modification programs can be used to decrease patellofemoral pain. Immediate effects of a stair descent distal gait modification session that intended to emphasize forefoot landing during stair descent are described in this study. OBJECTIVES: To analyze the immediate effects of a distal gait modification session on lower extremity movements and intensity of pain in women with patellofemoral pain during stair descent...
May 23, 2018: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/29791133/design-construction-and-validation-of-histone-binding-effectors-in-vitro-and-in-cells
#17
Stefan J Tekel, Cassandra M Barrett, Daniel A Vargas, Karmella A Haynes
Chromatin is a system of nuclear proteins and nucleic acids that plays a pivotal role in gene expression and cell behavior, and is therefore the subject of intense study for cell development and cancer research. Biochemistry, crystallography, and reverse genetics have elucidated the macromolecular interactions that drive chromatin regulation. One of the central mechanisms is the recognition of post translational modifications (PTMs) on histone proteins by a family of nuclear proteins known as "readers...
May 23, 2018: Biochemistry
https://www.readbyqxmd.com/read/29791025/factors-associated-with-quality-of-life-of-dementia-caregivers-direct-and-indirect-effects
#18
Hikaru Oba, Teruyuki Matsuoka, Yuka Kato, Jin Narumoto
AIMS: To examine the direct and indirect relationships between the characteristics of patients and caregivers associated with caregivers' quality of life. BACKGROUND: Complex relationships exist among the factors associated with caregivers' quality of life. DESIGN: This study was a retrospective cross-sectional design. METHODS: The data were retrospectively extracted from participants who had visited the Center for Diagnosis of Dementia at Kyoto Prefectural University of Medicine from April 2013 - March 2016...
May 23, 2018: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/29790785/mental-health-trajectories-among-women-in-australia-as-they-age
#19
Thach Tran, Karin Hammarberg, Joanne Ryan, Judy Lowthian, Rosanne Freak-Poli, Alice Owen, Maggie Kirkman, Andrea Curtis, Heather Rowe, Helen Brown, Stephanie Ward, Carlene Britt, Jane Fisher
OBJECTIVES: To ascertain the trajectories of mental health among women in Australia assessed in repeat waves from their early 70 s to the end of their lives or their mid 80 s. METHOD: Secondary analysis of data contributed by the 1921-26 cohort of the Australian Longitudinal Study of Women's Health Waves 1-6. Primary outcome was the 4-item SF-36 Vitality Subscale, which assesses mental health as life satisfaction, social participation, energy and enthusiasm. Structural, individual and intermediary factors were assessed using study-specific and standardised measures...
May 23, 2018: Aging & Mental Health
https://www.readbyqxmd.com/read/29790738/design-and-development-of-polysaccharide-doxorubicin-peptide-bioconjugates-for-dual-synergistic-effects-of-integrin-targeted-and-cell-penetrating-peptides-for-cancer-chemotherapy
#20
Alexandra A P Mansur, Sandhra Maria Carvalho, Zelia Ines Portela Lobato, Maria de Fátima Leite, Armando da Silva Cunha, Herman S Mansur
Polymer-drug conjugation is an attractive approach for target delivering insoluble and highly toxic drugs to tumor sites to overcome the side-effects caused by cancer chemotherapy. In this study we designed and synthesized novel polymer-drug-peptide conjugates for improved specificity on targeting cancer cells. Chemically modified polysaccharide, carboxymethylcellulose (CMC), was conjugated with doxorubicin (DOX) anticancer drug by amide bonds and dually biofunctionalized with integrin-target receptor tripeptide (RGD) and L-arginine (R) as cell-penetrating amino acid for synergistic targeting and enhancing internalization by cancer cells...
May 23, 2018: Bioconjugate Chemistry
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