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https://www.readbyqxmd.com/read/28444922/regulation-of-organelle-function-by-metformin
#1
REVIEW
Jeongho Kim, Young-Jai You
Metformin ameliorates hyperglycemia without the side effects of lactic acidosis or hypoglycemia. Metformin lowers the blood glucose level by decreasing hepatic glucose production in the liver and by increasing glucose uptake in the muscle. Recent studies show that metformin induces cell death in certain cancer cell lines by interfering with the metabolism of the cancer cells. Therefore, understanding the mechanisms of action for metformin will provide insights into how to better treat diabetes and other metabolic disorders and also into the development of new therapeutic drugs...
April 26, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28419427/how-i-manage-children-with-neutropenia
#2
REVIEW
David C Dale
Neutropenia, usually defined as a blood neutrophil count <1·5 × 10(9) /l, is a common medical problem for children and adults. There are many causes for neutropenia, and at each stage in life the clinical pattern of causes and consequences differs significantly. I recommend utilizing the age of the child and clinical observations for the preliminary diagnosis and primary management. In premature infants, neutropenia is quite common and contributes to the risk of sepsis with necrotizing enterocolitis...
April 17, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28380265/how-do-i-participate-in-t-cell-immunotherapy
#3
Megan M Suhoski Davis, David H McKenna, Philip J Norris
T cells play a key role in the adaptive immune response, and the ability to manipulate T cells for therapeutic uses has advanced in the past decade. Infusion of expanded or engineered T cells can potentially be used to treat cancer, viral infections, graft-versus-host disease, and organ transplant rejection. The role that blood banks play in the manufacture and distribution of T-cell therapeutics is still being defined. Given the regulatory framework of blood banks, they are well positioned to collect raw material for manufacture of T-cell therapies and to distribute finished product to hospitals in support of clinical trials or eventually for licensed products...
May 2017: Transfusion
https://www.readbyqxmd.com/read/28372277/mechanobiology-of-mesenchymal-stem-cells-which-interest-for-cell-based-treatment
#4
Céline Huselstein, R Rahouadj, N de Isla, D Bensoussan, J F Stoltz, Y P Li
Thanks to their immune properties, the mesenchymal stem cells (MSC) are a promising source for cell therapy. Current clinical trials show that MSC administrated to patients can treat different diseases (graft-versus-host disease (GVHD), liver cirrhosis, systemic lupus, erythematosus, rheumatoid arthritis, type I diabetes…). In this case, the most common mode of cell administration is the intravenous injection, and the hemodynamic environment of cells induced by blood circulation could interfere on their behavior during the migration and homing towards the injured site...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28282804/ifnar1-expression-level-in-iranian-multiple-sclerosis-patients-treated-with-ifn-b
#5
Arezou Sayad, Mohsen Khakzad Kelarijani, Elham Sajjadi, Mohammad Taheri
BACKGROUND: Multiple sclerosis (MS) as an auto-immune disease is an inflammatory, demyelinating disease of the central nervous system. Certain genes have shown to be involved in the initiation of MS but the specific role of some of them, e.g. IFNAR1 has not been identified in certain populations yet. OBJECTIVE: The IFNAR1 as a type I membrane protein shapes one of the two chains of a receptor for interferons alpha and beta. METHODS: To find out how IFNAR1 functions in the Iranian population, the researchers compared the expression level of this gene in relapsing-remitting MS (RR-MS) samples with normal individuals...
March 3, 2017: Human Antibodies
https://www.readbyqxmd.com/read/28261571/targeting-angiotensin-ii-type-1-receptor-at1r-inhibits-the-harmful-phenotype-of-plasmodium-specific-cd8-t-cells-during-blood-stage-malaria
#6
João L Silva-Filho, Celso Caruso-Neves, Ana A S Pinheiro
CD8(+) T-cell response is critical in the pathogenesis of cerebral malaria during blood-stage. Our group and other have been shown that angiotensin II (Ang II) and its receptor AT1 (AT1R), a key effector axis of renin-angiotensin system (RAS), have immune regulatory effects on T cells. Previously, we showed that inhibition of AT1R signaling protects mice against the lethal disease induced by Plasmodium berghei ANKA infection However, most of the Ang II/AT1R actions were characterized by using only pharmacological approaches, the effects of which may not always be due to a specific receptor blockade...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28248199/targeting-noncoding-rnas-in-disease
#7
REVIEW
Brian D Adams, Christine Parsons, Lisa Walker, Wen Cai Zhang, Frank J Slack
Many RNA species have been identified as important players in the development of chronic diseases, including cancer. Over the past decade, numerous studies have highlighted how regulatory RNAs such as microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) play crucial roles in the development of a disease state. It is clear that the aberrant expression of miRNAs promotes tumor initiation and progression, is linked with cardiac dysfunction, allows for the improper physiological response in maintaining glucose and insulin levels, and can prevent the appropriate integration of neuronal networks, resulting in neurodegenerative disorders...
March 1, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28125291/epstein-barr-virus-induced-gene-2-ebi2-mediates-allergen-induced-leukocyte-migration-into-airways
#8
Zhong-Jian Shen, Jie Hu, Venkatesh Kashi, Elizabeth A Kelly, Loren C Denlinger, Kevan Lutchman, Jeffrey G McDonald, Nizar N Jarjour, James S Malter
Background Leukocyte recruitment to sites of allergic inflammation depends on the local production of priming cytokines, chemokines, and potentially other mediators as well. Previously, we showed that eosinophils (Eos) express numerous orphan G-protein coupled receptors (GPRs) including EBI2. Despite its contribution to inflammatory diseases, the role of EBI2 in pulmonary eosinophilia is unknown. Objectives To determine whether oxysterol ligands for EBI2 are increased in asthma exacerbation and if, or how they promote eosinophil pulmonary migration...
January 26, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28114946/permeability-across-a-novel-microfluidic-blood-tumor-barrier-model
#9
Tori B Terrell-Hall, Amanda G Ammer, Jessica I G Griffith, Paul R Lockman
BACKGROUND: The lack of translatable in vitro blood-tumor barrier (BTB) models creates challenges in the development of drugs to treat tumors of the CNS and our understanding of how the vascular changes at the BBB in the presence of a tumor. METHODS: In this study, we characterize a novel microfluidic model of the BTB (and BBB model as a reference) that incorporates flow and induces shear stress on endothelial cells. Cell lines utilized include human umbilical vein endothelial cells co-cultured with CTX-TNA2 rat astrocytes (BBB) or Met-1 metastatic murine breast cancer cells (BTB)...
January 23, 2017: Fluids and Barriers of the CNS
https://www.readbyqxmd.com/read/28096088/how-i-treat-acquired-aplastic-anemia
#10
REVIEW
Andrea Bacigalupo
Acquired severe aplastic anemia (SAA) is a rare hematologic disease associated with significant morbidity and mortality. Immune destruction of hemopoietic stem cells plays an important role in pathogenesis, as shown by successful treatment with immunosuppressive agents, leading to transfusion independence or complete recovery of peripheral blood counts in a proportion of patients. Growth factors can be combined with immunosuppressive therapy (IST) and may improve response rates, as recently shown with thrombopoietin analogs...
March 16, 2017: Blood
https://www.readbyqxmd.com/read/28034871/how-i-evaluate-and-treat-thrombocytopenia-in-the-intensive-care-unit-patient
#11
REVIEW
Andreas Greinacher, Sixten Selleng
Multiple causes (pseudothrombocytopenia, hemodilution, increased consumption, decreased production, increased sequestration, and immune-mediated destruction of platelets) alone or in combination make thrombocytopenia very common in intensive care unit (ICU) patients. Persisting thrombocytopenia in critically ill patients is associated with, but not causative of, increased mortality. Identification of the underlying cause is key for management decisions in individual patients. While platelet transfusion might be indicated in patients with impaired platelet production or increased platelet destruction, it could be deleterious in patients with increased intravascular platelet activation...
December 29, 2016: Blood
https://www.readbyqxmd.com/read/28009478/local-effects-on-airway-inflammation-and-systemic-uptake-of-5-nm-pegylated-and-citrated-gold-nanoparticles-in-asthmatic-mice
#12
Albert J Omlor, Duc D Le, Janine Schlicker, Matthias Hannig, Raphael Ewen, Sebastian Heck, Christian Herr, Annette Kraegeloh, Christina Hein, Ralf Kautenburger, Guido Kickelbick, Robert Bals, Juliane Nguyen, Q Thai Dinh
Nanotechnology is showing promise in many medical applications such as drug delivery and hyperthermia. Nanoparticles administered to the respiratory tract cause local reactions and cross the blood-air barrier, thereby providing a means for easy systemic administration but also a potential source of toxicity. Little is known about how these effects are influenced by preexisting airway diseases such as asthma. Here, BALB/c mice are treated according to the ovalbumin (OVA) asthma protocol to promote allergic airway inflammation...
December 23, 2016: Small
https://www.readbyqxmd.com/read/27921220/increased-cell-free-mitochondrial-dna-is-a-marker-of-ongoing-inflammation-and-better-neurocognitive-function-in-virologically-suppressed-hiv-infected-individuals
#13
Josué Pérez-Santiago, Michelli F De Oliveira, Susanna R Var, Tyler R C Day, Steven P Woods, Sara Gianella, Sanjay R Mehta
Cell-free mitochondrial DNA (mtDNA) is a highly immunogenic molecule that is associated with several inflammatory conditions and with neurocognitive impairment during untreated HIV infection. Here, we investigate how cell-free mtDNA in cerebrospinal fluid (CSF) is associated with inflammation, neuronal damage, and neurocognitive functioning in the context of long-term suppressive antiretroviral therapy (ART). We quantified the levels of cell-free mtDNA in the CSF from 41 HIV-infected individuals with completely suppressed HIV RNA levels in blood plasma (<50 copies/mL) by droplet digital PCR...
April 2017: Journal of Neurovirology
https://www.readbyqxmd.com/read/27901325/asymptomatic-carotid-artery-stenosis-who-should-be-screened-who-should-be-treated-and-how-should-we-treat-them
#14
REVIEW
Djurre D DE Waard, Dylan Morris, Gert J DE Borst, Richard Bulbulia, Alison Halliday
Although stopping smoking, lowering blood pressure and reducing lipid levels will reduce global stroke risk and cardiovascular mortality, these remain leading causes of death and disability especially in ageing populations. Further prevention strategies are needed and, in the first part of this review, we explore the potential benefits of appropriate screening for carotid artery disease to reduce stroke and identify those who may have related cardiac disease. Although whole-population carotid screening is an inefficient and costly means of identifying candidates with tight carotid stenosis who might warrant intervention, it can identify many people with lower levels of stenosis who may benefit from cardiovascular risk-reducing medications...
February 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/27853267/characterizing-focused-ultrasound-mediated-drug-delivery-to-the-heterogeneous-primate-brain-in-vivo-with-acoustic-monitoring
#15
Shih-Ying Wu, Carlos Sierra Sanchez, Gesthimani Samiotaki, Amanda Buch, Vincent P Ferrera, Elisa E Konofagou
Focused ultrasound with microbubbles has been used to noninvasively and selectively deliver pharmacological agents across the blood-brain barrier (BBB) for treating brain diseases. Acoustic cavitation monitoring could serve as an on-line tool to assess and control the treatment. While it demonstrated a strong correlation in small animals, its translation to primates remains in question due to the anatomically different and highly heterogeneous brain structures with gray and white matteras well as dense vasculature...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27843539/regulatory-and-activated-effector-t-cells-in-chronic-hepatitis-c-virus-relation-to-autoimmunity
#16
Hanan Fouad, Maissa El Raziky, Eman Medhat Hassan, Ghada Mahmoud Abdel Aziz, Samar K Darweesh, Ahmed Reda Sayed
AIM: To investigate how Tregs are regulated in chronic hepatitis C virus (HCV) patients via assessment of Tregs markers (granzyme 2, CD69 and FoxP3), Teffs markers [TNFRSF4 (OX40), INFG] and CD4, CD25 genes. METHODS: A prospective study was conducted on 120 subjects divided into 4 groups: Group I (n = 30) treatment naïve chronic HCV patients; Group II (n = 30) chronic HCV treated with Peg/Riba; Group III (n = 30) chronic HCV associated with non-organ specific autoantibody and Group IV (n = 30) healthy persons as a control group...
October 28, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27842495/effectiveness-of-the-empower-par-intervention-in-improving-clinical-outcomes-of-type-2-diabetes-mellitus-in-primary-care-a-pragmatic-cluster-randomised-controlled-trial
#17
Anis Safura Ramli, Sharmini Selvarajah, Maryam Hannah Daud, Jamaiyah Haniff, Suraya Abdul-Razak, Tg Mohd Ikhwan Tg-Abu-Bakar-Sidik, Mohamad Adam Bujang, Boon How Chew, Thuhairah Rahman, Seng Fah Tong, Asrul Akmal Shafie, Verna K M Lee, Kien Keat Ng, Farnaza Ariffin, Hasidah Abdul-Hamid, Md Yasin Mazapuspavina, Nafiza Mat-Nasir, Chun W Chan, Abdul Rahman Yong-Rafidah, Mastura Ismail, Sharmila Lakshmanan, Wilson H H Low
BACKGROUND: The chronic care model was proven effective in improving clinical outcomes of diabetes in developed countries. However, evidence in developing countries is scarce. The objective of this study was to evaluate the effectiveness of EMPOWER-PAR intervention (based on the chronic care model) in improving clinical outcomes for type 2 diabetes mellitus using readily available resources in the Malaysian public primary care setting. METHODS: This was a pragmatic, cluster-randomised, parallel, matched pair, controlled trial using participatory action research approach, conducted in 10 public primary care clinics in Malaysia...
November 14, 2016: BMC Family Practice
https://www.readbyqxmd.com/read/27837552/fundamental-principles-of-stem-cell-banking
#18
Changbin Sun, Jianhui Yue, Na He, Yaqiong Liu, Xi Zhang, Yong Zhang
Stem cells are highly promising resources for application in cell therapy, regenerative medicine, drug discovery, toxicology and developmental biology research. Stem cell banks have been increasingly established all over the world in order to preserve their cellular characteristics, prevent contamination and deterioration, and facilitate their effective use in basic and translational research, as well as current and future clinical application. Standardization and quality control during banking procedures are essential to allow researchers from different labs to compare their results and to develop safe and effective new therapies...
2016: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/27785927/momelotinib-in-myelofibrosis-jak1-2-inhibitor-with-a-role-in-treating-and-understanding-the-anemia
#19
REVIEW
Elliott F Winton, Vamsi Kota
Myelofibrosis (MF) is a chronic malignancy of the blood-forming system caused by hyperactivation of JAK2/STAT signaling pathway. Small-molecule inhibitors of JAK2 can variably ameliorate MF-related symptoms caused by chronic inflammation and hepatosplenomegaly. Anemia is a significant problem and adverse prognostic factor in over a third of MF patients and is often worsened by JAK2 inhibitors. The JAK1/2 inhibitor momelotinib unexpectedly resulted in reduction of anemia in MF patients during Phase I/II trials...
February 2017: Future Oncology
https://www.readbyqxmd.com/read/27754026/yia-03-02-adiponectin-mediated-epithelial-autophagy-attenuates-hypertensive-renal-fibrosis
#20
Cheng-Chao Ruan, Yan Li, Yu Ma, Ding-Liang Zhu, Ping-Jin Gao
OBJECTIVE: Previous studies have indicated that adiponectin (APN) protects against hypertension-related cardiovascular disease. However, whether APN is involved in the regulation of hypertensive renal damage remains unclear. The present study aimed to elucidate how APN regulates renal epithelial to mesenchymal transdifferentiation (EMT) in desoxycorticosterone (DOCA)-salt hypertensive mice. DESIGN AND METHOD: Male APN knockout (APNKO) mice and wild-type (WT) C57BL/6 littermates were sc infused with DOCA pellet (50 mg for 21 day release)...
September 2016: Journal of Hypertension
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