keyword
MENU ▼
Read by QxMD icon Read
search

Tat

keyword
https://www.readbyqxmd.com/read/29232624/genomic-form-of-rhodopsin-dna-nanoparticles-rescued-autosomal-dominant-retinitis-pigmentosa-in-the-p23h-knock-in-mouse-model
#1
Rajendra Narayan Mitra, Min Zheng, Ellen R Weiss, Zongchao Han
Retinitis pigmentosa (RP) is a group of inherited retinal degenerative conditions and a leading cause of irreversible blindness. 25%-30% of RP cases are caused by inherited autosomal dominant (ad) mutations in the rhodopsin (Rho) protein of the retina, which impose a barrier for developing therapeutic treatments for this genetically heterogeneous disorder, as simple gene replacement is not sufficient to overcome dominant disease alleles. Previously, we have explored using the genomic short-form of Rho (sgRho) for gene augmentation therapy of RP in a Rho knockout mouse model...
December 5, 2017: Biomaterials
https://www.readbyqxmd.com/read/29230855/a-role-for-autophagy-in-long-term-spatial-memory-formation-in-male-rodents
#2
Michael J Hylin, Jing Zhao, Karthikeyan Tangavelou, Natalia S Rozas, Kimberly N Hood, Jacalyn S MacGowan, Anthony N Moore, Pramod K Dash
A hallmark of long-term memory formation is the requirement for protein synthesis. Administration of protein synthesis inhibitors impairs long-term memory formation without influencing short-term memory. Rapamycin is a specific inhibitor of target of rapamycin complex 1 (TORC1) that has been shown to block protein synthesis and impair long-term memory. In addition to regulating protein synthesis, TORC1 also phosphorylates Unc-51-like autophagy activating kinase-1 (Ulk-1) to suppress autophagy. As autophagy can be activated by rapamycin (and rapamycin inhibits long-term memory), our aim was to test the hypothesis that autophagy inhibitors would enhance long-term memory...
December 12, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29226657/short-centrifugation-to-ameliorate-turn-around-time-in-routine-coagulation-testing
#3
Albrecht Pfaefflin, Karen Schuster, Ruediger Braun
BACKGROUND: Fast and timely analysis of coagulation parameters is mandatory in hospital laboratories as the results are decisive for diagnosis and treatment in emergency patients. An important factor in TAT (turn-around time) prolongation is centrifugation of all samples prior to analysis. According to literature and most current SOPs (standard operation protocols) centrifugation time is given with 10 minutes at approximately 2,000 g and cannot be reduced without infringement of standards...
November 1, 2017: Clinical Laboratory
https://www.readbyqxmd.com/read/29223733/mitochondrial-pore-opening-and-loss-of-ca2-exchanger-nclx-levels-occur-after-frataxin-depletion
#4
R Purroy, E Britti, F Delaspre, J Tamarit, J Ros
Frataxin-deficient neonatal rat cardiomyocytes and dorsal root ganglia neurons have been used as cell models of Friedreich ataxia. In previous work we show that frataxin depletion resulted in mitochondrial swelling and lipid droplet accumulation in cardiomyocytes, and compromised DRG neurons survival. Now, we show that these cells display reduced levels of the mitochondrial calcium transporter NCLX that can be restored by calcium-chelating agents and by external addition of frataxin fused to TAT peptide. Also, the transcription factor NFAT3, involved in cardiac hypertrophy and apoptosis, becomes activated by dephosphorylation in both cardiomyocytes and DRG neurons...
December 6, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29223647/tat-conjugated-chitosan-cationic-micelle-for-nuclear-targeted-drug-and-gene-co-delivery
#5
Guan-Hai Wang, Yin-Yu Cai, Ji-Kun Du, Li Li, Qin Li, Hui-Kang Yang, Jian-Tao Lin
We developed a high-efficiency nucleus-targeted co-delivery vector that delivers genes and drugs directly into the nucleus of cancer cells. The system is based on grafted poly-(N-3-carbobenzyloxy-lysine) (CPCL) with transactivator of transcription (TAT)- chitosan on the surface. It is designed to perform highly efficient nucleus- targeted gene and drug co-delivery. Confocal laser scanning microscopy (CLSM) revealed that more TAT-CPCL entered the nucleus than does CPCL alone. The TAT-modified vector serves as a gene and drug co-delivery mechanism to achieve high gene transfection efficiency, high apoptosis and low viability in HeLa cells...
December 5, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/29221753/pura-the-gene-encoding-pur-alpha-member-of-an-ancient-nucleic-acid-binding-protein-family-with-mammalian-neurological-functions
#6
REVIEW
Dianne C Daniel, Edward M Johnson
The PURA gene encodes Pur-alpha, a 322 amino acid protein with repeated nucleic acid binding domains that are highly conserved from bacteria through humans. PUR genes with a single copy of this domain have been detected so far in spirochetes and bacteroides. Lower eukaryotes possess one copy of the PUR gene, whereas chordates possess 1-4 PUR family members. Human PUR genes encode Pur-alpha (Pura), Pur-beta (Purb) and two forms of Pur-gamma (Purg). Pur-alpha is a protein that binds specific DNA and RNA sequence elements...
December 5, 2017: Gene
https://www.readbyqxmd.com/read/29220699/hiv-1-tat-protein-induces-dna-damage-in-human-peripheral-blood-b-lymphocytes-via-mitochondrial-ros-production
#7
Rawan El-Amine, Diego Germini, Vlada V Zakharova, Tatyana Tsfasman, Eugene V Sheval, Ruy A N Louzada, Corinne Dupuy, Chrystèle Bilhou-Nabera, Aline Hamade, Fadia Najjar, Eric Oksenhendler, Marс Lipinski, Boris V Chernyak, Yegor S Vassetzky
Human immunodeficiency virus (HIV) infection is associated with B-cell malignancies in patients though HIV-1 is not able to infect B-cells. The rate of B-cell lymphomas in HIV-infected individuals remains high even under the combined antiretroviral therapy (cART) that reconstitutes the immune function. Thus, the contribution of HIV-1 to B-cell oncogenesis remains enigmatic. HIV-1 induces oxidative stress and DNA damage in infected cells via multiple mechanisms, including viral Tat protein. We have detected elevated levels of reactive oxygen species (ROS) and DNA damage in B-cells of HIV-infected individuals...
December 5, 2017: Redox Biology
https://www.readbyqxmd.com/read/29216369/the-pentatricopeptide-repeat-protein-mef31-is-required-for-editing-at-site-581-of-the-tatc-transcript-and-indirectly-influences-editing-at-site-586-of-the-same-transcript
#8
Anita Arenas-M, Enrique González-Durán, Isabel Gómez, Matthias Burger, Axel Brennicke, Mizuki Takenaka, Xavier Jordana
Pentatricopeptide repeat (PPR) proteins constitute the largest family of proteins in angiosperms and most members are predicted to play roles in the maturation of organellar RNAs. Here we describe the novel Mitochondrial Editing Factor 31 (MEF31), an E-PPR protein involved in editing at two near sites in the same transcript encoding subunit C of the twin-arginine translocation (tat) pathway. MEF31 is essential for editing at site tatC-581 and application of the recently proposed amino acid code for RNA recognition by PPR proteins supports the view that MEF31 directly targets this site by recognizing its cis sequence...
December 4, 2017: Plant & Cell Physiology
https://www.readbyqxmd.com/read/29215306/a-peptide-mimetic-of-tyrosine-phosphatase-step-as-a-potential-therapeutic-agent-for-treatment-of-cerebral-ischemic-stroke
#9
Ranjana Poddar, Sathyanarayanan Rajagopal, Lucas Winter, Andrea M Allan, Surojit Paul
Extensive research over the last two decades has advanced our understanding of the pathophysiology of ischemic stroke. However, current pharmacologic therapies are still limited to rapid reperfusion using thrombolytic agents, and neuroprotective approaches that can reduce the consequences of ischemic and reperfusion injury, are still not available. To bridge this gap, we have evaluated the long-term efficacy and therapeutic time window of a novel peptide-based neuroprotectant TAT-STEP, derived from the brain-enriched and neuron-specific tyrosine phosphatase STEP...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29212213/the-bromodomain-and-extraterminal-domain-inhibitor-bromosporine-synergistically-reactivates-latent-hiv-1-in-latently-infected-cells
#10
Hanyu Pan, Panpan Lu, Yinzhong Shen, Yanan Wang, Zhengtao Jiang, Xinyi Yang, Yangcheng Zhong, He Yang, Inam Ulla Khan, Muya Zhou, Bokang Li, Ziyu Zhang, Jianqing Xu, Hongzhou Lu, Huanzhang Zhu
The long-lived latent HIV-1 reservoir is the major barrier for complete cure of Acquired Immune Deficiency Syndrome (AIDS). Here we report that a novel bromodomain and extraterminal domain (BET) inhibitor bromosporine which can broadly target BETs, is able to potently reactivate HIV-1 replication in different latency models alone and more powerful when combined with prostratin or TNF-α. Furthermore, the treatment with bromosporine induced HIV-1 full-length transcripts in resting CD4+ T cells from infected individuals with suppressive antiretroviral therapy (ART) ex vivo, with no obvious cytotoxicity or global activation of T cell...
November 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/29210645/editorial-acting-on-tat-mediated-transcription-to-achieve-a-long-term-control-of-hiv-1-latency
#11
EDITORIAL
Oriana Tabarrini, Serena Massari
No abstract text is available yet for this article.
November 2, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/29210480/dimeric-drug-polymeric-micelles-with-acid-active-tumor-targeting-and-fret-traceable-drug-release
#12
Xing Guo, Lin Wang, Kayla Duval, Jing Fan, Shaobing Zhou, Zi Chen
Trans-activating transcriptional activator (TAT), a cell-penetrating peptide, is extensively used for facilitating cellular uptake and nuclear targeting of drug delivery systems. However, the positively charged TAT peptide strongly interacts with serum components and undergoes substantial phagocytosis by the reticuloendothelial system, causing a short blood circulation in vivo. In this work, an acid-active tumor targeting nanoplatform DA-TAT-PECL is developed to inhibit the nonspecific interactions of TAT in the bloodstream...
December 6, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29207967/identification-by-mass-spectrometry-and-automated-susceptibility-testing-from-positive-bottles-a-simple-rapid-and-standardized-approach-to-reduce-the-turnaround-time-in-the-management-of-blood-cultures
#13
Carola Mauri, Luigi Principe, Silvia Bracco, Elisa Meroni, Nicoletta Corbo, Beatrice Pini, Francesco Luzzaro
BACKGROUND: Speeding up identification and antimicrobial susceptibility testing (AST) is of foremost importance in the management of blood cultures. Here, we describe a simple, rapid, and standardized approach based on a very short-term incubation on solid medium from positive blood cultures followed by MALDI-TOF mass spectrometry identification and automated AST. The aim of the study was to evaluate the impact in the laboratory practice of this new procedure with respect to that previously used (standard method) by comparing TAT and cumulative percentage of final reports to clinicians...
December 6, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29207317/public-attitudes-towards-psychiatrists-in-the-metropolitan-area-of-hanoi-vietnam
#14
Thi Minh Tam Ta, Kerem Böge, Tien Duc Cao, Georg Schomerus, Tat Dinh Nguyen, Michael Dettling, Aditya Mungee, Lara Kim Martensen, Albert Diefenbacher, Matthias C Angermeyere, Eric Hahn
OBJECTIVES: Mental health associated stigmatization remains problematic in low and middle-income countries, thus preventing patients from adequate access to psychiatric care. Public attitudes towards psychiatrists have not been examined in many countries, especially not in Vietnam where merely one psychiatrist per 300.000 population is available. The study aims to explore attitudes towards psychiatrists in the Hanoi municipality and to identify socio-demographical factors that influence these attitudes...
November 28, 2017: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/29207009/tat%C3%A2-fused-ip3r%C3%A2-derived-peptide-enhances-cisplatin-sensitivity-of-ovarian-cancer-cells-by-increasing-er-ca2-release
#15
Qi Xie, Ye Xu, Weinan Gao, Yong Zhang, Jing Su, Yanan Liu, Yuting Guo, Minghan Dou, Kebang Hu, Liankun Sun
Ovarian cancer is the most common gynecological malignancy. At present, cisplatin is used to treat ovarian cancer; however, the development of cisplatin resistance during therapy is a common obstacle to achieving favorable outcomes. Recently, the B‑cell lymphoma 2 (Bcl‑2) BH4 domain has been reported to mediate the prosurvival activity of Bcl‑2 in cancer; however, the involvement of the BH4 domain of Bcl‑2 in the cisplatin resistance of ovarian carcinoma cells is not entirely clear. In this study, we observed the cytoplasmic and mitochondrial levels of Ca2+ by confocal laser microscopy...
November 16, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29206302/network-analysis-of-hippocampal-neurons-by-microelectrode-array-in-the-presence-of-hiv-1-tat-and-cocaine
#16
Taha Mohseni Ahooyi, Masoud Shekarabi, Emilie A Decoppet, T Dianne Langford, Kamel Khalili
HIV-associated neurocognitive disorders affecting greater than 30% of patients are caused by HIV-1 infection of the CNS, and in part, include neurotoxic effects of the viral transactivator of transcription, Tat protein. In addition to increasing the risk for becoming HIV infected, cocaine abuse enhances the neuropathogenic impacts of HIV-1. To investigate the outcome of Tat and cocaine interference in the hippocampal neuronal network, microelectrode arrays were employed to develop a systematic framework to assess the rank-cross-correlation coefficient in cultured hippocampal neurons...
December 5, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29204904/the-functionality-of-african-specific-variants-in-the-tgfb1-regulatory-region-and-their-potential-role-in-hivan
#17
M Nel, J-M Buys, F C J Botha, N Wearne, S Prince, J M Heckmann
BACKGROUND: Transcription of transforming growth factor beta-1 (TGF-β1) is regulated by a polymorphic promoter region containing African-specific single nucleotide polymorphisms (SNPs). Some of these SNPs have higher frequencies among Southern Africans compared to other African populations and their functionality has only been partially studied. Due to the high prevalence of HIV-associated nephropathy (HIVAN) in Africans we hypothesized that functional African TGFB1-promoter SNPs may contribute to HIVAN pathogenesis...
December 4, 2017: Clinical and Experimental Nephrology
https://www.readbyqxmd.com/read/29197569/non-covalent-interaction-between-ca-tat-and-calf-thymus-dna-deciphering-the-binding-mode-by-in-vitro-studies
#18
Mingxiu Lv, Mengwei Wang, Kui Lu, Bingchao Duan, Yufen Zhao
CA-TAT, a novel peptide analog, was modified at the N-terminus of TAT (47-57), the cell-penetrating peptide transacting activator of transcription, by attaching cecropin A (1-7). CA-TAT, TAT (47-57), and cecropin A (1-7) were synthesized using standard Fmoc solid-phase peptide synthesis procedures, purified using reversed-phase high performance liquid chromatography (RP-HPLC), and characterized using ESI-MS. CA-TAT demonstrated antibacterial activities against bacteria with low hemolysis (MHC>128μM). The minimum inhibitory concentration (MIC) values of CA-TAT were in the range of 1-16μM, which completely inhibited both gram-positive and gram-negative bacteria...
November 29, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29197230/the-influence-of-prior-reputation-and-reciprocity-on-dynamic-trust-building-in-adults-with-and-without-autism-spectrum-disorder
#19
Cornelius Maurer, Valerian Chambon, Sacha Bourgeois-Gironde, Marion Leboyer, Tiziana Zalla
The present study was designed to investigate the effects of reputational priors and direct reciprocity on the dynamics of trust building in adults with (N = 17) and without (N = 25) autism spectrum disorder (ASD) using a multi-round Trust Game (MTG). On each round, participants, who played as investors, were required to maximize their benefits by updating their prior expectations (the partner's positive or negative reputation), based on the partner's directed reciprocity, and adjusting their own investment decisions accordingly...
November 29, 2017: Cognition
https://www.readbyqxmd.com/read/29197189/incidental-gallbladder-cancer-at-cholecystectomy
#20
Faik Tatli, Abdullah Ozgönül, Yusuf Yucel, Hüseyin Cahit Yalcin, Resit Ciftci, Mehmet Gümer, Firat Erkmen, Rabia Altuntas, Ali Uzunkoy
BACKGROUND: Gallbladder tumours rank fifth in the world among gastrointestinal system tumours. Coincidental gallbladder tumours are diagnosed during cholecystectomies, or by examining the cholecystectomy material. AIMS: In this study, we aimed to evaluate the incidence of gallbladder cancer among patients undergoing cholecystectomies due to gallbladder disease. STUDY DESIGN: Retrospective study METHODS: The files of 341 patients who had undergone routine cholecystectomy operations between January 2013 and March 2016 were reviewed, and their pathology results were recorded...
2017: Annali Italiani di Chirurgia
keyword
keyword
20231
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"