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https://www.readbyqxmd.com/read/27920496/fabrication-of-anti-vitiligo-ointment-containing-psoralea-corylifolia-in-vitro-and-in-vivo-characterization
#1
Irshad Hussain, Nisar Hussain, Abdul Manan, Abdur Rashid, Barkat Khan, Sattar Bakhsh
BACKGROUND: Vitiligo is a repugnant and odious dermatological malady of the time. It has an detrimental impact on the pigmentation of the human skin as a result of the destruction of cutaneous melanocytes. It affects 1%-2% of the population worldwide. Different therapeutic regimens have been deployed to treat vitiligo, but none of them could stand alone to be stated as a perfect cure. Recently, a change has been observed through novel experimental-designed optimization leading to the development of an anti-vitiligo ointment containing Psoralea corylifolia (PC) seed powder...
2016: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/27920090/islet-derived-cd4-t-cells-targeting-proinsulin-in-human-autoimmune-diabetes
#2
Aaron W Michels, Laurie G Landry, Kristen A McDaniel, Liping Yu, Martha Campbell-Thompson, William W Kwok, Kenneth L Jones, Peter A Gottlieb, John W Kappler, Qizhi Tang, Bart O Roep, Mark A Atkinson, Clayton E Mathews, Maki Nakayama
Type 1 diabetes results from chronic autoimmune destruction of insulin-producing beta cells within pancreatic islets. While insulin is a critical self-antigen in animal models of autoimmune diabetes, due to extremely limited access to pancreas samples, little is known about human antigenic targets for islet-infiltrating T-cells. Here we show that proinsulin peptides are targeted by islet-infiltrating T-cells from type 1 diabetes patients. We identified hundreds of T-cells from inflamed pancreatic islets of three young type 1 diabetes organ donors with a short disease duration with high risk HLA genes using a direct T-cell receptor (TCR) sequencing approach without long-term cell culture...
December 5, 2016: Diabetes
https://www.readbyqxmd.com/read/27915976/strategies-to-strike-survival-networks-in-cancer
#3
Marzia Pennati, Graziella Cimino-Reale, Laura Gatti, Giuliana Cassinelli
The machinery that maintains cellular and tissue homeostasis in a healthy individual is recruited and hijacked by cancer cells to support tumor growth and progression. Activation of often unpredictable alternative or complementary signaling pathways allows cancer cells to bypass the intrinsic self-destructive machinery and the limited replicative potential present in every cell for correct homeostasis maintenance. Therefore, evasion/resistance to apoptosis/cell death, self-sufficiency in growth/survival signals, and limitless replicative potential remain undoubted hallmarks of cancer, contributing to drug resistance...
2016: Critical Reviews in Oncogenesis
https://www.readbyqxmd.com/read/27904889/reactive-oxygen-species-in-bcr-abl1-expressing-cells-relevance-to-chronic-myeloid-leukemia
#4
Joanna Antoszewska-Smith, Elzbieta Pawlowska, Janusz Blasiak
Chronic myeloid leukemia (CML) results from the t(9;22) reciprocal chromosomal translocation producing the BCR-ABL1 gene, conferring growth and proliferation advantages in the CML cells. CML progresses from chronic, often syndrome-free, to blast phase, fatal if not treated. Although the involvement of BCR-ABL1 in some signaling pathways is considered as the cause of CML, the mechanisms resulting in its progression are not completely known. However, BCR-ABL1 stimulates the production of reactive oxygen species (ROS), which levels increase with CML progression and induce BCR-ABL1 self-mutagenesis...
December 1, 2016: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/27893573/suicide-and-fire-a-20-year-study-of-self-immolation-death-in-sousse-tunisia
#5
Maher Jedidi, Mohamed Cherif El Khal, Souheil Mlayeh, Tasnim Masmoudi, Mohamed Mahjoub, Mohamed Yassine Brahem, Mohamed Ben Dhiab, Majed Zemni, Mohamed Kamel Souguir
Self-immolation is a self-destructive conduct described since antiquity. Its frequency is variable from one country to another and it is a real public health problem in parts of the world. In Tunisia, after the 2011 revolution the problem of self-immolation protest has been highly publicized giving the impression of an increase in this phenomenon. This is a retrospective analysis of all fatal self-immolation cases, collected over a 20-year period (1996-2015) at the Forensic Medicine Department of the Farhat Hached University Hospital, Sousse, Tunisia...
November 15, 2016: Journal of Burn Care & Research: Official Publication of the American Burn Association
https://www.readbyqxmd.com/read/27880045/koelreuteria-formosana-extract-induces-growth-inhibition-and-cell-death-in-human-colon-carcinoma-cells-via-g2-m-arrest-and-lc3-ii-activation-dependent-autophagy
#6
Chi-Ting Horng, Yueh-Jung Wu, Pei-Ni Chen, Shu-Chen Chu, Chun-Miao Tsai, Yih-Shou Hsieh
Autophagy is a self-destructive process that degrades cytoplasmic constituents. In our previous study, Koelreuteria formosana ethanolic extract (KFEE), which is obtained from natural plants endemic to Taiwan, has inhibited cell metastasis in renal carcinoma cells. However, the anticancer effects of KFEE on colon cancer remain unclear. In this study, KFEE exerted a strong cytotoxic effect on DLD-1 and COLO 205 human colorectal cancer cell lines. KFEE effectively inhibited cancer cell proliferation, induced G2/M-phase arrest associated with downregulaton of cyclin E, cyclin B and cdc25C and upregulation of p21, and induced cell death by activating autophagy but did not cause apoptotic cell death...
November 23, 2016: Nutrition and Cancer
https://www.readbyqxmd.com/read/27878944/the-roles-of-bone-derived-exosomes-and-exosomal-micrornas-in-regulating-bone-remodelling
#7
REVIEW
Yong Xie, Yanyu Chen, Licheng Zhang, Wei Ge, Peifu Tang
Pathological destructive bone diseases are primarily caused by the failure of a lifelong self-renewal process of the skeletal system called bone remodelling. The mechanisms underlying this process include enhanced osteoclast activity and decreased generation of the osteoblast lineage. Intercellular interaction and crosstalk among these cell types are crucial for the maintenance of bone remodelling, either through the secretion of growth factors or direct cell-cell physical engagement. Recent studies have revealed that exosomes derived from bone cells, including osteoclasts, osteoblasts and their precursors, play pivotal roles on bone remodelling by transferring biologically active molecules to target cells, especially in the processes of osteoclast and osteoblast differentiation...
November 23, 2016: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/27878840/challenging-behaviours-in-adults-with-an-intellectual-disability-a-total-population-study-and-exploration-of-risk-indices
#8
Darren L Bowring, Vasiliki Totsika, Richard P Hastings, Sandy Toogood, Gemma M Griffith
OBJECTIVES: Considerable variation has been reported in the prevalence and correlates of challenging behaviour (CB) in adults with intellectual disabilities (ID). To provide a robust estimate of prevalence, we identified the entire administrative population of adults with ID in a defined geographical area and used a behaviour assessment tool with good psychometric properties. METHODS: Data from 265 adults who were known to services were collected using a demographic survey tool and the Behavior Problems Inventory - Short Form...
November 23, 2016: British Journal of Clinical Psychology
https://www.readbyqxmd.com/read/27875379/the-decision-neuroscience-perspective-on-suicidal-behavior-evidence-and-hypotheses
#9
Alexandre Y Dombrovski, Michael N Hallquist
PURPOSE OF REVIEW: Suicide attempts are usually regretted by people who survive them. Furthermore, addiction and gambling are over-represented among people who attempt or die by suicide, raising the question whether their decision-making is impaired. Advances in decision neuroscience have enabled us to investigate decision processes in suicidal people and to elucidate putative neural substrates of disadvantageous decision-making. RECENT FINDINGS: Early studies have linked attempted suicide to poor performance on gambling tasks...
January 2017: Current Opinion in Psychiatry
https://www.readbyqxmd.com/read/27863512/rheumatoid-synovial-fibroblasts-differentiate-into-distinct-subsets-in-the-presence-of-cytokines-and-cartilage
#10
Adam P Croft, Amy J Naylor, Jennifer L Marshall, Debbie L Hardie, Birgit Zimmermann, Jason Turner, Guillaume Desanti, Holly Adams, Adrian I Yemm, Ulf Müller-Ladner, Jean-Michel Dayer, Elena Neumann, Andrew Filer, Christopher D Buckley
BACKGROUND: We investigated two distinct synovial fibroblast populations that were located preferentially in the lining or sub-lining layers and defined by their expression of either podoplanin (PDPN) or CD248, and explored their ability to undergo self-assembly and transmigration in vivo. METHODS: Synovial fibroblasts (SF) were cultured in vitro and phenotypic changes following stimulation with interleukin (IL)-1β, tumor necrosis factor (TNF)-α, and transforming growth factor (TGF)-β1 were examined...
November 18, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27854261/taking-advantage-of-nature-s-gift-can-endogenous-neural-stem-cells-improve-myelin-regeneration
#11
REVIEW
Rainer Akkermann, Janusz Joachim Jadasz, Kasum Azim, Patrick Küry
Irreversible functional deficits in multiple sclerosis (MS) are directly correlated to axonal damage and loss. Neurodegeneration results from immune-mediated destruction of myelin sheaths and subsequent axonal demyelination. Importantly, oligodendrocytes, the myelinating glial cells of the central nervous system, can be replaced to some extent to generate new myelin sheaths. This endogenous regeneration capacity has so far mainly been attributed to the activation and recruitment of resident oligodendroglial precursor cells...
November 14, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27849238/diabetes-mellitus-in-childhood-an-emerging-condition-in-the-21st-century
#12
Thais Della Manna, Nuvarte Setian, Roberta Diaz Savoldelli, Dulce Rondina Guedes, Hilton Kuperman, Hamilton Cabral Menezes, Leandra Steinmetz, Louise Cominato, Vaê Dichtchekenian, Durval Damiani
The International Diabetes Federation (IDF-2015) estimates the existence of 30,900 children under 15 years old with type 1 diabetes mellitus (DM1) in Brazil, and an increase of 3.0% per year is expected. This review focused on meta-analysis and pediatric diabetes update articles in order to draw attention to the need of planning coping strategies to support this serious public health problem in coming years. DM1 is considered an immuno-mediated disease with a complex transmission influenced by genetic and environmental factors responsible for a gradual destruction of the insulin producing pancreatic beta cells...
September 2016: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/27849086/prolonged-fluorescence-lifetime-of-carbon-quantum-dots-by-combining-with-hydroxyapatite-nanorods-for-bio-applications
#13
Baojin Ma, Shan Zhang, Ruoyu Liu, Jichuan Qiu, Lili Zhao, Shicai Wang, Jianhua Li, Yuanhua Sang, Huaidong Jiang, Hong Liu
Carbon quantum dots (CQDs) are a new type of fluorescent nanoparticle for cell imaging and tracking. However, they would easily diffuse and quench, followed by the loss of their fluorescence ability. By connecting their functional groups with other nanoparticles, the CQDs will be protected from destruction and exhibit long-time fluorescence. Here, carbon quantum dot-hydroxyapatite (CQD-HAp) hybrid nanorods were prepared by the self-assembly of CQDs on the surface of HAp nanorods through a facile one-pot process...
November 16, 2016: Nanoscale
https://www.readbyqxmd.com/read/27846724/-the-role-of-pd-1-pd-l1-signaling-pathway-in-antitumor-immune-response
#14
P Zatloukalová, M Pjechová, S Babčanová, T R Hupp, B Vojtěšek
BACKGROUND: Correct function of the immune system depends on close cooperation between stimulation and inhibition signals, which protect an organism from outside microorganisms and other agents, but also protects healthy tissues against possible self-destructing attacks of the immune system. However, the inhibitory mechanisms can be abused by cancer cells that evade immune responses and, in fact, they help develop cancer. Therefore, one of the characteristics of cancer cells is the ability to evade immune recognition...
2016: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/27827423/radiation-damage-in-xfel-case-study-from-the-oxygen-evolving-complex-of-photosystem-ii
#15
Muhamed Amin, Ashraf Badawi, S S Obayya
Structural changes induced by radiation damage in X-ray crystallography hinder the ability to understand the structure/function relationship in chemical reactions. Serial femtosecond crystallography overcomes this problem by exposing the sample to very short and intense laser pulse leading to measurement before destruction. Here we use molecular modeling to map the radiation damage during the 10-50 fs to the intensity, the energy and the time duration of the laser pulse on the oxygen-evolving complex (OEC) of photosystem II...
November 9, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27825567/prevalence-of-rheumatoid-arthritis-in-the-french-west-indies-results-of-the-epppra-study-in-martinique
#16
Lauren Brunier, Marie Bleterry, Sylvie Merle, Christian Derancourt, Katlyn Polomat, Véronique Dehlinger, Christophe Deligny, Georges Jean-Baptiste, Serge Arfi, Rishika Banydeen, Michel De Bandt
OBJECTIVES: Studies suggest that rheumatoid arthritis (RA) is less frequent in African populations. However, no recent precise data exists for Afro-Caribbeans. The EPPPRA project is a prospective epidemiological survey to describe prevalence and clinical aspects of RA in the French West Indies (Martinique, Guadeloupe, French Guiana). METHODS: EPPPRA involved all rheumatologists from the French West Indies who included all patients with a known clinical diagnosis of RA, during a one-year period...
November 4, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27824311/-unmet-needs-in-the-recognition-and-treatment-of-childhood-depression
#17
Sandor Kalmar
In spite of the fact that the good mental health is indispensable condition of the development of sound personality, in the past years the somatic and mental state of our children did not improve. The author ascertains that there are several obstacles in the recognition, treatment and prevention of child-depression that causes a serious public health problem. He stresses the neurologic, neuropsychiatric, psychopathological and diagnostic deficiencies, and the low number of Child and Youth Dispensaries. He describes the situation of Hungarian Child and Youth Dispensaries network, and states positively that today the child-psychiatric services are not able to provide optimal provision for every depressive child...
September 2016: Neuropsychopharmacologia Hungarica
https://www.readbyqxmd.com/read/27818961/the-effect-of-paternal-addiction-on-adolescent-suicide-attempts-a-qualitative-study
#18
Mohammad Rafi Bazrafshan, Farkhondeh Sharif, Zahra Molazem, Arash Mani
BACKGROUND: Research shows that parents have an immense influence over their children's behavior during adolescence. Adolescents who grow up with parents who are addicted to drugs and alcohol are more likely to turn to self-destructive behaviors such as suicide attempts. Because addiction in Iran is a primarily masculine phenomenon and in traditional Iranian culture, the father is responsible for family affairs and is recognized as the family provider, paternal addiction affects adolescent children...
September 2016: International Journal of High Risk Behaviors & Addiction
https://www.readbyqxmd.com/read/27791121/the-cc-domain-structure-from-the-wheat-stem-rust-resistance-protein-sr33-challenges-paradigms-for-dimerization-in-plant-nlr-proteins
#19
Lachlan W Casey, Peter Lavrencic, Adam R Bentham, Stella Cesari, Daniel J Ericsson, Tristan Croll, Dušan Turk, Peter A Anderson, Alan E Mark, Peter N Dodds, Mehdi Mobli, Bostjan Kobe, Simon J Williams
Plants use intracellular immunity receptors, known as nucleotide-binding oligomerization domain-like receptors (NLRs), to recognize specific pathogen effector proteins and induce immune responses. These proteins provide resistance to many of the world's most destructive plant pathogens, yet we have a limited understanding of the molecular mechanisms that lead to defense signaling. We examined the wheat NLR protein, Sr33, which is responsible for strain-specific resistance to the wheat stem rust pathogen, Puccinia graminis f...
October 17, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27785911/human-islet-amyloid-polypeptide-assembly-the-key-role-of-the-8-20-fragment
#20
Li Wang, Alexandre Iourievich Ilitchev, Maxwell J Giammona, Fei Li, Steven K Buratto, Michael T Bowers
The aggregation of human islet amyloid polypeptide (hIAPP) has been closely associated with the pathogeny of type 2 diabetes mellitus (T2DM) and destruction of pancreatic islet β-cells. Several amyloidogenic domains within the hIAPP sequence capable of self-association have been identified. Among them is the 8-20 region of hIAPP, which has formed β-sheet fibrils despite being contained within an α-helical region of full-length hIAPP. To further understand the propensity of this region for self-assembly, two peptide fragments were compared, one consisting of the residues 8-20 (WT8-20) and a mutant fragment with a His18Pro substitution (H18P8-20)...
October 27, 2016: Journal of Physical Chemistry. B
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