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https://www.readbyqxmd.com/read/29793179/nano-strategies-for-berberine-delivery-a-natural-alkaloid-of-berberis
#1
REVIEW
Elaheh Mirhadi, Mehdi Rezaee, Bizhan Malaekeh-Nikouei
Berberine, as a phytochemical component of some medicinal Chinese herbs (most frequently Berberis vulgaris), is an isoquinoline alkaloid with many therapeutic effects including anti-viral, anti-microbial, anti-diarrhea, anti-inflammatory and anti-tumor effects. Berberine has some significant effects on type 2 diabetes through adenosine monophosphate-activated protein kinase activation, glycolysis stimulation, and mitochondrial function inhibition which subsequently improves both lipid and glucose metabolism...
May 21, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29793160/water-footprint-characteristic-of-less-developed-water-rich-regions-case-of-yunnan-china
#2
Yiying Qian, Huijuan Dong, Yong Geng, Shaozhuo Zhong, Xu Tian, Yanhong Yu, Yihui Chen, Dana Avery Moss
Rapid industrialization and urbanization pose pressure on water resources in China. Virtual water trade proves to be an increasingly useful tool in water stress alleviation for water-scarce regions, while bringing opportunities and challenges for less developed water-rich regions. In this study, Yunnan, a typical province in southwest China, was selected as the case study area to explore its potential in socio-economic development in the context of water sustainability. Both input-output analysis and structural decomposition analysis on Yunnan's water footprint for the period of 2002-2012 were performed at not only an aggregated level but also a sectoral level...
March 30, 2018: Water Research
https://www.readbyqxmd.com/read/29793112/3d-printed-membrane-as-an-alternative-to-amniotic-membrane-for-ocular-surface-conjunctival-defect-reconstruction-an-in-vitro-in-vivo-study
#3
Shima Dehghani, Morteza Rasoulianboroujeni, Hamed Ghasemi, Saeed Heidari Keshel, Zohreh Nozarian, Mohammad Naser Hashemian, Mehran Zarei-Ghanavati, Golshan Latifi, Reza Ghaffari, Zhanfeng Cui, Hua Ye, Lobat Tayebi
BACKGROUND: The aim of this study was to evaluate the surgical handling and clinical applicability of a specific 3D-printed membrane design fabricated using a gelatin, elastin and sodium hyaluronate blend for conjunctival reconstruction and compare it with amniotic membrane (AM), which is normally used in such surgeries. METHODS: 3D printing technique was employed to fabricate the membrane based on gradient design. Prior to printing, rheometry was employed to optimize the ink composition...
May 11, 2018: Biomaterials
https://www.readbyqxmd.com/read/29792996/cervical-bracing-practices-after-degenerative-cervical-surgery-a-survey-of-cervical-spine-research-society-members
#4
David J Lunardini, Martin H Krag, Nathan S Mauser, Joon Y Lee, William H Donaldson, James D Kang
BACKGROUND: Context: Prior studies have shown common use of post-operative bracing, despite advances in modern day instrumentation rigidity and little evidence of brace effectiveness. PURPOSE: To document current practice patterns of brace use after degenerative cervical spine surgeries among members of the Cervical Spine Research Society (CSRS), to evaluate trends, and to identify areas of further study. STUDY DESIGN: A questionnaire survey METHODS: A 10 question survey was sent to members of the Cervical Spine Research Society to document current routine bracing practices after various common degenerative cervical spine surgical scenarios, including fusion and non-fusion procedures...
May 21, 2018: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/29792868/ah6809-decreases-production-of-inflammatory-mediators-by-pge-2-ep2-camp-signaling-pathway-in-an-experimentally-induced-pure-cerebral-concussion-in-rats
#5
Ping Li, Hongyan Jiang, Haiying Wu, Deye Wu, Hengxi Li, Jianyun Yu, Jianghua Lai
Increasing evidence suggests that PGE2 metabolic pathway is involved in pathological changes of the secondary brain injury after traumatic brain injury. However, the underlying mechanisms, in particular, the correlation between various key enzymes and the brain injury, has remained to be fully explored. More specifically, it remains to be ascertained whether AH6809 (an EP2 receptor antagonist) would interfere with the downstream of the PGE2 , regulate the inflammatory mediators and improve neuronal damage in the hippocampus by PGE2 - EP2 - cAMP signaling pathway...
May 21, 2018: Brain Research
https://www.readbyqxmd.com/read/29792825/g1-s-transcription-factor-copy-number-is-a-growth-dependent-determinant-of-cell-cycle-commitment-in-yeast
#6
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/29792737/assessing-the-recall-rate-for-screening-mammography-comparing-the-medicare-hospital-compare-dataset-with-the-national-mammography-database
#7
Cindy S Lee, Carol Parise, Judy Burleson, David Seidenwurm
OBJECTIVE: High-quality screening mammography has been shown to substantially reduce mortality from breast cancer. Recall rate is a principal performance metric for screening mammography because it directly relates to the rate of false-positive examinations. This study aims to compare the recall rate derived using two sources-the claims-based Hospital Compare (HC) dataset from the Centers for Medicare & Medicaid Services versus the National Mammography Database (NMD) from the American College of Radiology-to understand the implications in pay-for-performance and quality improvement activities...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29792671/the-chemoattractant-glorin-is-inactivated-by-ester-cleavage-during-early-multicellular-development-of-polysphondylium-pallidum
#8
Daniel Heinrich, Robert Barnett, Luke Tweedy, Robert Insall, Pierre Stallforth, Thomas Winckler
Among the amoebozoan species capable of forming fruiting bodies, the dictyostelid social amoebae stand out since they form true multicellular organisms by means of single cell aggregation. Upon food depletion, cells migrate across gradients of extracellular signals initiated by cells in aggregation centers. The model species that is widely used to study multicellular development of social amoebae, Dictyostelium discoideum, uses cyclic adenosine monophosphate (cAMP) as a chemoattractant to coordinate aggregation...
May 24, 2018: ACS Chemical Biology
https://www.readbyqxmd.com/read/29792568/physical-ergonomics-awareness-in-an-offshore-processing-platform-among-malaysian-oil-and-gas-workers
#9
M Hafizul Hilmi, Raja Ariffin Raja Ghazilla
INTRODUCTION: The reliability of offshore oil and gas (O&G) facilities depend on the operation and maintenance activities, where human physical intervention is involved. Workers are often exposed to ergonomics hazards due to inefficient workplace design. Ergonomics awareness among workers is a crucial factor in mitigating such hazards. OBJECTIVES: This study intends to evaluate the state of physical ergonomics awareness among Malaysian O&G workers and to assess their perception towards the criticality of physical ergonomics issues within an offshore processing facility...
May 24, 2018: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/29792567/effects-of-age-and-body-mass-index-on-breast-characteristics-a-cluster-analysis
#10
Celeste E Coltman, Julie R Steele, Deirdre E McGhee
Limited research has quantified variation in the characteristics of the breasts among women and determined how these breast characteristics are influenced by age and body mass. The aim of this study was to classify the breasts of women in the community into different categories based on comprehensive and objective measurements of the characteristics of their breasts and torsos, and to determine the effect of age and body mass index (BMI) on the prevalence of these breast categories. Four breast characteristic clusters were identified (X-Large, Very-ptotic & Splayed; Large, Ptotic & Splayed; Medium & Mildly-ptotic; and Small & Non-ptotic), with age and BMI shown to significantly affect the breast characteristic clusters...
May 24, 2018: Ergonomics
https://www.readbyqxmd.com/read/29792554/effect-of-acetazolamide-and-methazolamide-on-diaphragm-and-dorsiflexor-fatigue-a-randomized-controlled-trial
#11
Paolo B Dominelli, Chris J McNeil, Tyler Dennis Vermeulen, Troy J R Stuckless, Courtney V Brown, Giulio S Dominelli, Erik Richard Swenson, Lucas J Teppema, Glen Edward Foster
Acetazolamide, a carbonic anhydrase (CA) inhibitor used clinically and to prevent acute mountain sickness, worsens skeletal muscle fatigue in animals and humans. In animals, methazolamide, a methylated analogue of acetazolamide and an equally potent CA inhibitor, reportedly exacerbates fatigue less than acetazolamide. Accordingly, we sought to determine, in humans, if methazolamide would attenuate diaphragm and dorsiflexor fatigue compared to acetazolamide. Healthy men (dorsiflexor: n=12; diaphragm: n=7) performed fatiguing exercise on three occasions, after ingesting acetazolamide (250 mg three times a day) and then in random order, methazolamide (100 mg twice a day) or placebo for 48 h...
May 24, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29792532/the-moderating-influence-of-disorder-on-coached-overreporting-using-the-mmpi-2-rf
#12
Ariane M Olsen, Carlo O C Veltri
Overreporting has always been a concern within psychological evaluations. The Minnesota Multiphasic Personality Inventory-2-Restructured Form (Ben-Porath & Tellegen, 2008/2011 ) contains validity scales designed for detecting noncredible responses. In this study, 270 undergraduates were instructed to feign either schizophrenia, posttraumatic stress disorder (PTSD) or generalized anxiety disorder (GAD); some participants were coached on symptoms and validity scales. Results at both the individual protocol and mean validity scale score levels suggest that each feigned disorder moderates the effectiveness of coaching on validity scale detection...
May 24, 2018: Journal of Personality Assessment
https://www.readbyqxmd.com/read/29792455/debunking-key-assumptions-about-teams-the-role-of-culture
#13
Jennifer Feitosa, Rebecca Grossman, Maritza Salazar
Scholars have argued that if psychologists are to gain a true understanding of human behavior, culture should be central to research and theory. The research on teams is an area where better integration between the mainstream and cross-cultural literatures is critically needed, given the increasing prevalence of multicultural teams. The purpose of this article is therefore to demonstrate how research focused on culture's influence on teams advances current mainstream theoretical understanding of team effectiveness...
May 2018: American Psychologist
https://www.readbyqxmd.com/read/29792359/adverse-effect-analysis-of-high-intensity-focused-ultrasound-in-the-treatment-of-benign-uterine-diseases
#14
Yunchang Liu, Wendy Wenyi Zhang, Min He, Chunmei Gong, Bin Xie, Xiangxia Wen, Dandan Li, Lian Zhang
OBJECTIVE: To retrospectively analyze the adverse effects of high-intensity focused ultrasound (HIFU) in management of benign uterine diseases. MATERIALS AND METHODS: From 2011 to 2017, 27,053 patients with benign uterine diseases were treated with HIFU in 19 centers in China. Among them, 17,402 patients had uterine fibroids, 8434 had adenomyosis, 876 had caesarean scar pregnancies, and 341 had placenta accreta. RESULTS: The median age, height, weight, BMI of the patients was 42 years, 158 mm, 56 kg, 22...
May 24, 2018: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/29792230/community-health-worker-support-to-improve-hiv-treatment-outcomes-for-older-children-and-adolescents-in-zimbabwe-a-process-evaluation-of-the-zenith-trial
#15
Chido Dziva Chikwari, Victoria Simms, Joanna Busza, Ethel Dauya, Tsitsi Bandason, Prosper Chonzi, Shungu Munyati, Hilda Mujuru, Rashida A Ferrand
BACKGROUND: Community health worker (CHW)-delivered support visits to children living with HIV and their caregivers significantly reduced odds of virological failure among the children in the ZENITH trial conducted in Zimbabwe. We conducted a process evaluation to assess fidelity, acceptability, and feasibility of this intervention to identify lessons that could inform replication and scale-up of this approach. METHODS: Field manuals kept by each CHW, records from monthly supervisory meetings, and participant data collected throughout the trial were used to assess the intervention's implementation...
May 23, 2018: Implementation Science: IS
https://www.readbyqxmd.com/read/29792193/research-ethics-review-at-university-eduardo-mondlane-uem-maputo-central-hospital-mozambique-2013-2016-a-descriptive-analysis-of-the-start-up-of-a-new-research-ethics-committee-rec
#16
Jahit Sacarlal, Vasco Muchanga, Carlos Mabutana, Matilde Mabui, Arlete Mariamo, Assa Júlio Cuamba, Leida Artur Fumo, Jacinta Silveira, Elizabeth Heitman, Troy D Moon
BACKGROUND: Mozambique has seen remarkable growth in biomedical research over the last decade. To meet a growing need, the National Committee for Bioethics in Health of Mozambique (CNBS) encouraged the development of ethical review processes at institutions that regularly conduct medical and social science research. In 2012, the Faculty of Medicine (FM) of University Eduardo Mondlane (UEM) and the Maputo Central Hospital (MCH) established a joint Institutional Committee on Bioethics for Health (CIBS FM & MCH)...
May 23, 2018: BMC Medical Ethics
https://www.readbyqxmd.com/read/29792156/design-synthesis-and-biological-evaluation-of-1h-1-2-3-triazole-linked-1h%C3%A2-dibenzo-b-h-xanthenes-as-inductors-of-ros-mediated-apoptosis-in-the-breast-cancer-cell-line-mcf-7
#17
Carolina S Bortolot, Luana da S M Forezi, Roberta K F Marra, Marcelo I P Reis, Barbara V F E Sa, Ricardo Imbroisi Filho, Zeinab Ghasemishahrestani, Mauro Sola-Penna, Patricia Zancan, Vitor F Ferreira, Fernando de C da Silva
BACKGROUND: Low molecular weight 1,2,3-triazoles and naphthoquinones are endowed with various types of biological activity, such as against cancer, HIV and bacteria. However, in some cases, the conjugation of these two nuclei considerably increases their biological activities Objective: In this work, we decided to study the synthesis and screening of bis-naphthoquinones and xanthenes tethered to 1,2,3-triazoles against cancer cell lines, specifically the human breast cancer cell line MCF-7...
May 23, 2018: Medicinal Chemistry
https://www.readbyqxmd.com/read/29792148/homopiperazine-derived-female-controlled-vaginal-trichomonacidal-contraceptive-an-addition-to-structure-activity-relationship
#18
B S Rahul, Bindu Saraswati, C Shiju, Gopal Gupta, Nand Lal
BACKGROUND: In our previous work, several piperazine derived bis(dialkylaminethiocarbonyl) disulfides and disulfide esters of dithiocarbamic acid have been synthesized and evaluated for their spermicidal and microbicidal efficacy. These studies have provided some promising compounds for developing a dually active vaginal microbicidal contraceptive which are under pre-clinical stage [1, 16, 17]. OBJECTIVE: The main objective of this study was to design, synthesis and biological evaluation of bis(dialkylaminethiocarbonyl) disulfides (4-15) and 2,2'-disulfanediylbis (3-(substituted- 1-yl) propane-2,1-diyl) disubstituted-1-carbodithioates (19-28) as non-surfactant molecules capable of eliminating Trichomonas vaginalis as as well as irreversibly immobilizing 100% human sperm promptly...
May 23, 2018: Medicinal Chemistry
https://www.readbyqxmd.com/read/29791904/the-cgas-sting-pathway-is-important-for-dendritic-cell-activation-but-is-not-essential-to-induce-protective-immunity-against-mycobacterium-tuberculosis-infection
#19
Fabio V Marinho, Sulayman Benmerzoug, Stephanie Rose, Priscila C Campos, João T Marques, André Báfica, Glen Barber, Bernhard Ryffel, Sergio C Oliveira, Valerie F J Quesniaux
Mycobacterium tuberculosis (Mtb) infection remains a major public health concern. The STING (stimulator of interferon genes) pathway contributes to the cytosolic surveillance of host cells. Most studies on the role of STING activation in Mtb infection have focused on macrophages. Moreover, a detailed investigation of the role of STING during Mtb infection in vivo is required. Here, we deciphered the involvement of STING in the activation of dendritic cells (DCs) and the host response to Mtb infection in vivo...
May 23, 2018: Journal of Innate Immunity
https://www.readbyqxmd.com/read/29791702/all-inside-technique-for-acl-reconstruction-using-a-flipcutter%C3%A2-and-the-tightrope%C3%A2-system
#20
Nicos Papaloucas
There have been many innovations in the field of ACL-reconstruction over the years, including the FlipCutter® and TightRope® system (both from Arthrex Inc.). The FlipCutter® is a combined guide pin and reamer that allows minimally invasive socket-creation from the inside out, especially in difficult-to-reach areas. The TightRope® is a further development of the well-known Endobutton™ (Smith & Nephew plc) that consists of a four-point knotless locking system. Its main advantage is its adjustability, which makes it possible to fill the entire bone socket with the graft without any empty space...
June 1, 2018: Surgical Technology International
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