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https://www.readbyqxmd.com/read/29786744/mir%C3%A2-133b-regulates-proliferation-and-apoptosis-in-high%C3%A2-glucose%C3%A2-induced-human-retinal-endothelial-cells-by-targeting-ras-homolog-family-member-a
#1
Jun Yao, Jihong Wang, Yong Yao, Kelei Wang, Qianqian Zhou, Ying Tang
The aim of the present study was to investigate the role of microRNA (miR)‑133b in high‑glucose‑induced human retinal endothelial cells (hRECs), particularly regarding its potential targeting of ras homolog family member A (RhoA). To establish the high‑glucose‑induced diabetic retinopathy (DR) model, hRECs were cultured in high‑glucose medium for 1, 2 and 3 days. An Annexin allophycocyanin (APC)/7‑aminoactinomycin D (7‑AAD) staining assay was performed to measure the apoptosis of hRECs. Next, the cells were transfected with miR‑133b inhibitors or mimics, and the cell proliferation and apoptosis were measured by MTT and Annexin‑APC/7‑AAD staining assays, respectively...
May 18, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29785346/integrated-bioinformatic-changes-and-analysis-of-retina-with-time-in-diabetic-rats
#2
Zekai Cui, Qiaolang Zeng, Yonglong Guo, Shiwei Liu, Jiansu Chen
Diabetic retinopathy (DR) is the most common chronic complication of diabetes. It can cause impaired vision and even blindness. However, the pathological mechanism of DR is still unknown. In the present study, we use bioinformatic analysis to reveal the pathological changes of early DR in a streptozotocin (STZ) induced diabetes rat model. The dataset GSE28831 was downloaded from the Gene Expression Omnibus (GEO) database. To clarify the pathological mechanism of early DR, genes which were up-regulated (UP group) or down-regulated (DOWN group) over time were identified...
2018: PeerJ
https://www.readbyqxmd.com/read/29784751/hepatocellular-carcinoma-updates-to-screening-and-diagnosis
#3
Anne M Covey
In what is considered to be "a global problem," liver cancer has tripled in incidence in the United States over the past 20 to 30 years, and is now present in 7 per 100,000 Americans. Thus, screening for disease should be at the forefront to effectively treat high-risk populations. At the 2018 NCCN 23rd Annual Conference, Dr. Anne M. Covey discussed the updated NCCN Guidelines for the screening and diagnosis of hepatocellular carcinoma, which place ultrasound as the most cost-effective and least toxic primary screening option, with a screening interval of approximately 6 months for individuals considered to be at high risk...
May 2018: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/29784750/pregnancy-in-patients-with-chronic-myeloid-leukemia
#4
Ellin Berman
Estimates suggest that nearly 30% of patients diagnosed with chronic myeloid leukemia (CML) are aged <49 years, with approximately half being women. For many of these women, childbearing concerns are a major factor as they initiate treatment with tyrosine kinase inhibitors, which are known to be teratogenic. During her presentation at the NCCN 23rd Annual Conference, Dr. Berman identified the challenges in helping women undergoing treatment for CML who want to have children, and emphasized the importance of an individualized and multidisciplinary approach to management...
May 2018: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/29784153/perifoveal-capillary-network-quantification-in-young-diabetic-patients-with-subclinical-or-no-retinopathy
#5
Zoi Kapsala, Aristofanis Pallikaris, Dimitrios Mamoulakis, Joanna Moschandreas, Georgios Bontzos, Miltiadis Tsilimbaris
OBJECTIVE: To assess the morphology of perifoveal capillary network with quantitative parameters in young patients with diabetes mellitus type I (DM I) using an algorithm. METHODS: Fifty-three images (33 eyes of 33 DM I patients and 20 eyes of 20 non-DM controls) were chosen retrospectively from the University Hospital of Heraklion digital fluorescein angiography database. An additional group consisting of patients with advanced DR abnormalities was included in our analysis to investigate whether our method detects alterations when they are present...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29781699/conceptualisation-of-african-primal-health-care-within-mental-health-care
#6
Neo E Nare, Abel J Pienaar, Ditaba D Mphuthi
BACKGROUND:  It is believed by western education systems that the first contact should be with the nurse in primary health care. However, it is not the case. Therefore, the researcher attempts to correct this misconception by conceptualising the correct beginning of health seeking behaviour in an indigenous African community, namely African Primal Health Care (APHC). 'Primal' was coined during a colloquium by Dr Mbulawa and Seboka team members; however no formal conceptualisation took place, only operational definition...
March 22, 2018: Curationis
https://www.readbyqxmd.com/read/29780724/uniportal-vats-lobectomies-masterclass-in-bratislava
#7
Miroslav Janik, Peter Juhos
On February 5-6, an event on uniportal VATS approach to pulmonary resections took place in Bratislava. It focused on developing uniportal VATS technique. The two-day event gave opportunity to discuss the topic with masters of thoracic surgery such as Prof. Hasan Batirel and Diego Gonzalez, to train basic skills on simulators developed by Dr. Tomaz Stupnik and to watch live surgery performed by Diego Gonzalez. Two patients underwent uniportal VATS lobectomy. This event was another step to advance miniinvasive major pulmonary procedures...
2018: Journal of Visualized Surgery
https://www.readbyqxmd.com/read/29780419/elevated-serum-total-bilirubin-concentrations-are-negatively-associated-with-diabetic-retinopathy-among-the-chinese-northeastern-population
#8
Dan Zhang, Wei Zhang, Shi Jin, Wei Wang, Dan Guo, Lu Wang
Objective: To evaluate the association between serum total bilirubin concentration (STBC) and diabetic retinopathy (DR) among the Chinese northeastern population. Methods: A cross-sectional study was conducted in Liaoning between January 2015 and May 2017. Results: A total of 742 subjects (419 men and 323 women) with type 2 diabetes mellitus (DM) who visited an ophthalmic clinic were included in this study. The mean age of the subjects was 59...
2018: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29780387/cd32-expressing-cd4-t-cells-are-phenotypically-diverse-and-can-contain-proviral-hiv-dna
#9
Genevieve E Martin, Matthew Pace, John P Thornhill, Chansavath Phetsouphanh, Jodi Meyerowitz, Morgane Gossez, Helen Brown, Natalia Olejniczak, Julianne Lwanga, Gita Ramjee, Pontiano Kaleebu, Kholoud Porter, Christian B Willberg, Paul Klenerman, Nneka Nwokolo, Julie Fox, Sarah Fidler, John Frater
Efforts to both characterize and eradicate the HIV reservoir have been limited by the rarity of latently infected cells and the absence of a specific denoting biomarker. CD32a (FcγRIIa) has been proposed to be a marker for an enriched CD4 T cell HIV reservoir, but this finding remains controversial. Here, we explore the expression of CD32 on CD3+ CD4+ cells in participants from two primary HIV infection studies and identify at least three distinct phenotypes (CD32low , CD32+ CD14+ , and CD32high ). Of note, CD4 negative enrichment kits remove the majority of CD4+ CD32+ T cells, potentially skewing subsequent analyses if used...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29779775/accuracy-of-whole-genome-sequencing-versus-phenotypic-mgit-and-commercial-molecular-tests-for-detection-of-drug-resistant-mycobacterium-tuberculosis-isolated-from-patients-in-brazil-and-mozambique
#10
Cinara Silva Feliciano, Evangelina Inacio Namburete, Jéssica Rodrigues Plaça, Kamila Peronni, Anzaan Dippenaar, Robin Mark Warren, Wilson Araújo Silva, Valdes Roberto Bollela
BACKGROUND: The fast and accurate diagnosis of drug-resistant tuberculosis (DR-TB) is critical to reducing the spread of disease. Although commercial genotypic drug-susceptibility tests (DST) are close to the goal, they are still not able to detect all relevant DR-TB related mutations. Whole genome sequencing (WGS) allows better comprehension of DR-TB with a great discriminatory power. We aimed to evaluate WGS in M. tuberculosis isolates compared with phenotypic and genotypic DST. METHODS: This cross-sectional study evaluated 30 isolates from patients with detected DR-TB in Brazil and Mozambique...
May 2018: Tuberculosis
https://www.readbyqxmd.com/read/29779685/the-relationship-of-retinal-vessel-geometric-characteristics-to-the-incidence-and-progression-of-diabetic-retinopathy
#11
Ronald Klein, Kristine E Lee, Lorraine Danforth, Michael Y Tsai, Ronald E Gangnon, Stacy E Meuer, Tien Y Wong, Carol Y Cheung, Barbara E K Klein
PURPOSE: To examine the relationships of retinal vessel geometric characteristics (RVGCs) to the incidence and progression of diabetic retinopathy (DR). DESIGN: Observational, prospective cohort study. PARTICIPANTS: Nine hundred ninety-six persons with type 1 diabetes mellitus (T1DM) and 1370 persons with type 2 diabetes mellitus (T2DM) seen at a baseline examination who were eligible for follow-up examinations at subsequent 5-year intervals...
May 17, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29779018/common-and-unique-transcriptional-responses-to-dietary-restriction-and-loss-of-insulin-receptor-substrate-1-irs1-in-mice
#12
Melissa M Page, Eugene F Schuster, Manikhandan Mudaliar, Pawel Herzyk, Dominic J Withers, Colin Selman
Dietary restriction (DR) is the most widely studied non-genetic intervention capable of extending lifespan across multiple taxa. Modulation of genes, primarily within the insulin/insulin-like growth factor signalling (IIS) and the mechanistic target of rapamycin (mTOR) signalling pathways also act to extend lifespan in model organisms. For example, mice lacking insulin receptor substrate-1 (IRS1) are long-lived and protected against several age-associated pathologies. However, it remains unclear how these particular interventions act mechanistically to produce their beneficial effects...
May 20, 2018: Aging
https://www.readbyqxmd.com/read/29778740/alpha-1-antitrypsin-ameliorates-inflammation-and-neurodegeneration-in-the-diabetic-mouse-retina
#13
Gustavo Ortiz, Emiliano S Lopez, Juan P Salica, Constanza Potilinski, Mariano Fernández Acquier, Eduardo Chuluyan, Juan E Gallo
Diabetic retinopathy (DR) is the most common cause of blindness in the working age population. Early events of DR are accompanied by neurodegeneration of the inner retina resulting in ganglion cell loss. These findings together with reduced retinal thickness are observed within the first weeks of experimental DR. Besides, an inflammatory process is triggered in DR in which the innate immune response plays a relevant role. Alpha 1 antitrypsin (AAT), an inhibitor of serine proteases, has shown anti-inflammatory properties in several diseases...
May 17, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29778451/renaud-mazeron-a-great-scientist-and-teacher-who-contributed-to-gec-estro-for-a-decade-tribute-to-dr-renaud-mazeron-1977-2016
#14
EDITORIAL
R Nout, C Kirisits, K Tanderup, R Pötter, C Haie-Méder, B Pieters, J Lindegaard
No abstract text is available yet for this article.
May 16, 2018: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29777874/asymmetric-dimethylarginine-contributes-to-retinal-neovascularization-of-diabetic-retinopathy-through-ephrinb2-pathway
#15
Mei-Rong Du, Li Yan, Nian-Sheng Li, Yu-Jie Wang, Ting Zhou, Jun-Lin Jiang
Diabetic retinopathy (DR) is a leading cause of vision loss with retinal neovascularization. This study aims to investigate whether Asymmetric dimethylarginine (ADMA) impacts the pathogenesis of DR via focusing on promoting retinal neovascularization and its underlying molecular mechanisms. Diabetic rats were induced by a single intraperitoneal injection of streptozotocin (STZ) for 20 weeks. ADMA levels in aqueous and the influence of hypoxia on ADMA and angiogenesis in RF/6A cells were examined. The effects and underlying molecular mechanisms of ADMA on neovascularization of RF/6A cells were further evaluated by administration of ADMA, DDAH siRNA or ephrinB2 siRNA...
May 16, 2018: Vascular Pharmacology
https://www.readbyqxmd.com/read/29777202/aberrant-modulation-of-ribosomal-protein-s6-phosphorylation-confers-acquired-resistance-to-mapk-pathway-inhibitors-in-braf-mutant-melanoma
#16
Ming-Zhao Gao, Hong-Bin Wang, Xiang-Ling Chen, Wen-Ting Cao, Li Fu, Yun Li, Hai-Tian Quan, Cheng-Ying Xie, Li-Guang Lou
BRAF and MEK inhibitors have shown remarkable clinical efficacy in BRAF-mutant melanoma; however, most patients develop resistance, which limits the clinical benefit of these agents. In this study, we found that the human melanoma cell clones, A375-DR and A375-TR, with acquired resistance to BRAF inhibitor dabrafenib and MEK inhibitor trametinib, were cross resistant to other MAPK pathway inhibitors. In these resistant cells, phosphorylation of ribosomal protein S6 (rpS6) but not phosphorylation of ERK or p90 ribosomal S6 kinase (RSK) were unable to be inhibited by MAPK pathway inhibitors...
May 18, 2018: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/29776671/guidelines-on-diabetic-eye-care-the-international-council-of-ophthalmology-recommendations-for-screening-follow-up-referral-and-treatment-based-on-resource-settings
#17
REVIEW
Tien Y Wong, Jennifer Sun, Ryo Kawasaki, Paisan Ruamviboonsuk, Neeru Gupta, Van Charles Lansingh, Mauricio Maia, Wanjiku Mathenge, Sunil Moreker, Maji M K Muqit, Serge Resnikoff, Juan Verdaguer, Peiquan Zhao, Frederick Ferris, Lloyd P Aiello, Hugh R Taylor
Diabetes mellitus (DM) is a global epidemic and affects populations in both developing and developed countries, with differing health care and resource levels. Diabetic retinopathy (DR) is a major complication of DM and a leading cause of vision loss in working middle-aged adults. Vision loss from DR can be prevented with broad-level public health strategies, but these need to be tailored to a country's and population's resource setting. Designing DR screening programs, with appropriate and timely referral to facilities with trained eye care professionals, and using cost-effective treatment for vision-threatening levels of DR can prevent vision loss...
May 15, 2018: Ophthalmology
https://www.readbyqxmd.com/read/29776389/what-is-the-impact-of-human-leukocyte-antigen-mismatching-on-graft-survival-and-mortality-in-renal-transplantation-a-meta-analysis-of-23-cohort-studies-involving-486-608-recipients
#18
Xinmiao Shi, Jicheng Lv, Wenke Han, Xuhui Zhong, Xinfang Xie, Baige Su, Jie Ding
BACKGROUND: The magnitude effects of human leukocyte antigen (HLA) mismatching on post-transplant outcomes of kidney transplantation remain controversial. We aim to quantitatively assess the associations of HLA mismatching with graft survival and mortality in adult kidney transplantation. METHODS: We searched PubMed, EMBASE and the Cochrane Library from their inception to December, 2016. Priori clinical outcomes were overall graft failure, death-censored graft failure and all-cause mortality...
May 18, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29776009/dependence-receptors-the-dark-side-awakens
#19
REVIEW
Ana-Maria Negulescu, Patrick Mehlen
Transmembrane receptors are usually seen as on and off switch: when the specific ligand is bound, the receptor is on and transduces a downstream signal, while when the ligand is absent, the receptor is off. Over the last two decades several reports have argued from an alternative view where some receptors, depending on the context, will be active both in the presence and in the absence of ligand, being sort of onA and onB switch rather than on and off. These receptors have been named Dependence Receptors (DR) and they share the ability to actively trigger cell death when unbound by their respective ligands...
May 18, 2018: FEBS Journal
https://www.readbyqxmd.com/read/29775654/targeting-cancer-s-metabolic-co-dependencies-a-landscape-shaped-by-genotype-and-tissue-context
#20
REVIEW
Junfeng Bi, Sihan Wu, Wenjing Zhang, Paul S Mischel
Tumors cells reprogram their metabolism to fuel rapid growth. The ability to trace nutrient fluxes in the context of specific alterations has provided new mechanistic insight into the process of oncogenic transformation. A broad array of complementary genetic, epigenetic, transcriptional and translational mechanisms has been identified, revealing a metabolic landscape of cancer. However, cancer metabolism is not a static or uniform process, including within a single tumor. Tumor cells adapt to changing environmental conditions, profoundly shaping the enzymatic dependencies of individual cells...
May 15, 2018: Biochimica et Biophysica Acta
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