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https://www.readbyqxmd.com/read/28823025/nanomedicine-associated-with-photodynamic-therapy-for-glioblastoma-treatment
#1
REVIEW
Leonardo B de Paula, Fernando L Primo, Antonio C Tedesco
Glioblastoma, also known as glioblastoma multiforme (GBM), is the most recurrent and malignant astrocytic glioma found in adults. Biologically, GBMs are highly aggressive tumors that often show diffuse infiltration of the brain parenchyma, making complete surgical resection difficult. GBM is not curable with surgery alone because tumor cells typically invade the surrounding brain, rendering complete resection unsafe. Consequently, present-day therapy for malignant glioma remains a great challenge. The location of the invasive tumor cells presents several barriers to therapeutic delivery...
August 19, 2017: Biophysical Reviews
https://www.readbyqxmd.com/read/28822714/cardiovascular-disease-leads-to-a-new-algorithm-for-diabetes-treatment
#2
REVIEW
Valentina Rodriguez, Matthew C Weiss, Howard Weintraub, Ira J Goldberg, Arthur Schwartzbard
Patients with diabetes mellitus have increased rates of atherosclerotic cardiovascular disease (CVD) and heart failure (HF). This increase occurs despite optimal lipid-lowering therapies. We reviewed clinical trials of diabetes treatments and their effects on circulating plasma lipoproteins and CVD. Several earlier studies failed to demonstrate clear CVD benefit from diabetes therapies. In addition, triglyceride-reducing agents did not reduce overall CVD in large clinical trials although these trials were not conducted in cohorts selected as hypertriglyceridemic...
July 22, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28822288/two-sides-of-the-coin-part-2-colloid-and-surface-science-meets-real-biointerfaces
#3
Barry W Ninham, Kåre Larsson, Pierandrea Lo Nostro
Part 1 revisited developments in lipid and surfactant self assembly over the past 40 years [1]. New concepts emerged. Here we explore how these developments can be used to make sense of and bring order to a range of complex biological phenomena. Together with Part 1, this contribution is a fundamental revision of intuition at the boundaries of Colloid Science and Biological interfaces from a perspective of nearly 50 years. We offer new insights on a unified treatment of self assembly of lipids, surfactants and proteins in the light of developments presented in Part 1...
August 5, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28822177/-berberine-regulates-type-2-diabetes-mellitus-related-with-insulin-resistance
#4
REVIEW
Cheng Li, Jin-Zhi He, Xue-Dong Zhou, Xin Xu
Insulin resistance (IR) is defined as a series of clinical manifestations for diminished effectiveness of insulin in lowering blood sugar levels caused by decreased sensitivity to insulin of liver, muscle and adipose tissue. IR is the major contributor to the etiology and pathogenesis of type 2 diabetes mellitus (T2DM). Berberine, a traditional Chinese herb extract, has been shown to be safe and effective in lowering blood sugar, alleviating insulin resistance and moderating type 2 diabetes mellitus and its complications...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28821011/the-photodynamic-action-of-pheophorbide-a-induces-cell-death-through-oxidative-stress-in-leishmania-amazonensis
#5
Nathielle Miranda, Hélito Volpato, Jean Henrique da Silva Rodrigues, Wilker Caetano, Tânia Ueda-Nakamura, Sueli de Oliveira Silva, Celso Vataru Nakamura
Leishmaniasis is a disease caused by hemoflagellate protozoa, affecting millions of people worldwide. The difficulties of treating patients with this parasitosis include the limited efficacy and many side effects of the currently available drugs. Therefore, the search for new compounds with leishmanicidal action is necessary. Photodynamic therapy has been studied in the medical field because of its selectivity, utilizing a combination of visible light, a photosensitizer compound, and singlet oxygen to reach the area of treatment...
August 11, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28819951/metformin-a-new-old-drug
#6
Marta Patrycja Wróbel, Bogdan Marek, Dariusz Kajdaniuk, Dominika Rokicka, Aleksandra Szymborska-Kajanek, Krzysztof Strojek
For many years metformin has been the gold standard in the treatment of type 2 diabetes. According to recommendations of the most important diabetes associations, this is the first-choice drug for use as monotherapy in patients with newly diagnosed type 2 diabetes. Metformin is also recommended in combined treatment when monotherapy is no longer effective. It is then combined with a sulfony-lurea, an incretin, flozin, or insulin, irrespective of the number of insulin injections per day. Besides its properties used in the treatment of diabetes, metformin has been treated for some time as a drug of a so-called pleiotropic activity, as each year brings new reports about its favourable effect in different conditions...
2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28816105/thiazolidinedione-drugs-in-the-treatment-of-type-2-diabetes-mellitus-past-present-and-future
#7
Melissa A Davidson, Donald R Mattison, Laurent Azoulay, Daniel Krewski
Thiazolidinedione (TZD) drugs used in the treatment of type 2 diabetes mellitus (T2DM) have proven effective in improving insulin sensitivity, hyperglycemia, and lipid metabolism. Though well tolerated by some patients, their mechanism of action as ligands of peroxisome proliferator-activated receptors (PPARs) results in the activation of several pathways in addition to those responsible for glycemic control and lipid homeostasis. These pathways, which include those related to inflammation, bone formation, and cell proliferation, may lead to adverse health outcomes...
August 17, 2017: Critical Reviews in Toxicology
https://www.readbyqxmd.com/read/28814891/diabetes-and-dyslipidemia-characterizing-lipoprotein-metabolism
#8
REVIEW
G H Tomkin, D Owens
Premature atherosclerosis in diabetes accounts for much of the decreased life span. New treatments have reduced this risk considerably. This review explores the relationship among the disturbances in glucose, lipid, and bile salt metabolic pathways that occur in diabetes. In particular, excess nutrient intake and starvation have major metabolic effects, which have allowed us new insights into the disturbance that occurs in diabetes. Metabolic regulators such as the forkhead transcription factors, the farnesyl X transcription factors, and the fibroblast growth factors have become important players in our understanding of the dysregulation of metabolism in diabetes and overnutrition...
2017: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
https://www.readbyqxmd.com/read/28814772/myosin-isoform-expressed-in-metastatic-prostate-cancer-stimulates-cell-invasion
#9
Ivan V Maly, Tera M Domaradzki, Victoria A Gosy, Wilma A Hofmann
During metastasis, tumor cells migrate out of their original tissue to invade other organs. Secretion of exosomes and metalloproteases is essential for extracellular matrix remodeling, enabling migration through tissue barriers. Metastatic prostate cancer is differentiated by expression of the rare isoform A of the molecular motor myosin IC, however the function of this isoform remained unknown. Here we show that it contributes causatively to the invasive motility of prostate cancer cells. We found that the isoform associates with metalloprotease-containing exosomes and stimulates their secretion...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28813452/plasma-metabolomics-reveals-membrane-lipids-aspartate-asparagine-and-nucleotide-metabolism-pathway-differences-associated-with-chloroquine-resistance-in-plasmodium-vivax-malaria
#10
Karan Uppal, Jorge L Salinas, Wuelton M Monteiro, Fernando Val, Regina J Cordy, Ken Liu, Gisely C Melo, Andre M Siqueira, Belisa Magalhaes, Mary R Galinski, Marcus V G Lacerda, Dean P Jones
BACKGROUND: Chloroquine (CQ) is the main anti-schizontocidal drug used in the treatment of uncomplicated malaria caused by Plasmodium vivax. Chloroquine resistant P. vivax (PvCR) malaria in the Western Pacific region, Asia and in the Americas indicates a need for biomarkers of resistance to improve therapy and enhance understanding of the mechanisms associated with PvCR. In this study, we compared plasma metabolic profiles of P. vivax malaria patients with PvCR and chloroquine sensitive parasites before treatment to identify potential molecular markers of chloroquine resistance...
2017: PloS One
https://www.readbyqxmd.com/read/28812211/the-immune-system-in-obesity-developing-paradigms-amidst-inconvenient-truths
#11
REVIEW
Madhur Agrawal, Philip A Kern, Barbara S Nikolajczyk
PURPOSE OF REVIEW: Adipose tissue (AT) houses both innate and adaptive immune systems that are crucial for preserving AT function and metabolic homeostasis. In this review, we summarize recent information regarding progression of obesity-associated AT inflammation and insulin resistance. We additionally consider alterations in AT distribution and the immune system in males vs. females and among different racial populations. RECENT FINDINGS: Innate and adaptive immune cell-derived inflammation drives insulin resistance both locally and systemically...
August 15, 2017: Current Diabetes Reports
https://www.readbyqxmd.com/read/28805938/what-is-new-in-the-pathophysiology-of-acne-an-overview
#12
REVIEW
B Dréno
Acne is a chronic inflammatory disease of the pilosebaceous unit. Its pathophysiology includes hyperseborrhoea, abnormal follicular keratinization and Propionibacterium acnes proliferation in the pilosebaceous unit. Recent research has shed some new light on the involvement of the sebaceous gland, as well as on the pro-inflammatory activity of the cutaneous microbiome. During puberty, alteration of the sebaceous lipid profile, called dysseborrhoea, stress, irritation, cosmetics and potential dietary factors lead to inflammation and formation of different types of acne lesions...
September 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28805158/pp2a-regulatory-subunit-b55%C3%AE-is-a-gatekeeper-of-osteoblast-maturation-and-lineage-maintenance
#13
Anastassia Serguienko, Robert Hanes, Iwona Grad, Meng-Yu Wang, Ola Myklebost, Else Munthe
Bone marrow mesenchymal stem cells (BM MSCs) mediate skeletal remodeling by differentiating into osteoblasts. However, this remodeling is impaired with aging as well as following long-term glucocorticoid treatment, resulting in osteoporosis. Here we report a novel factor of osteoblast differentiation - PP2A regulatory subunit B55γ. We show that B55γ is induced by glucocorticoid receptor (GR) in human primary BM MSCs during differentiation to osteoblast, but not to adipocytes, and is required for osteoblast morphogenesis and mineralization...
August 12, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28802794/a-novel-and-organic-solvent-free-preparation-of-solid-lipid-nanoparticles-using-natural-biopolymers-as-natural-emulsifier-and-stabilizer
#14
Jingyi Xue, Taoran Wang, Qiaobin Hu, Mingyong Zhou, Yangchao Luo
In this work, a new and novel organic solvent-free and synthetic surfactant-free method was reported to fabricate stable solid lipid nanoparticles (SLNs) from stearic acid, sodium caseinate (NaCas) and pectin, as well as water. Melted stearic acid was directly emulsified into an aqueous phase containing NaCas and pectin, followed by pH adjustment and thermal treatment to induce the formation of a compact and dense polymeric coating which stabilized SLNs. The preparation procedures and formulations were comprehensively optimized...
August 9, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28802226/taraxerol-a-pentacyclic-triterpenoid-from-abroma-augusta-leaf-attenuates-diabetic-nephropathy-in-type-2-diabetic-rats
#15
Ritu Khanra, Niloy Bhattacharjee, Tarun K Dua, Ashis Nandy, Achintya Saha, Jatin Kalita, Prasenjit Manna, Saikat Dewanjee
Persistent hyperglycaemia coupled with inflammation plays an important role in the pathogenesis of diabetic nephropathy (DN). Present study examined the therapeutic potential of taraxerol isolated from the methanol extract of Abroma augusta leaf against DN using rodent model of type 2 diabetes (T2D). T2D was experimentally induced by high fat diet and a single low-single dose of streptozotocin (35mg/kg, i.p.). Accumulation of serum creatinine, urea, and uric acid, activation of lactate dehydrogenase and creatinin kinase, and release of urinary albumin represented the glomerular damage and the progression of nephropathy in T2D rats...
August 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28802120/discovery-of-pentacyclic-triterpene-3%C3%AE-ester-derivatives-as-a-new-class-of-cholesterol-ester-transfer-protein-inhibitors
#16
Dongyin Chen, Xin Huang, Hongwen Zhou, Hanqiong Luo, Pengfei Wang, Yongzhi Chang, Xinyi He, Suiying Ni, Qingqing Shen, Guoshen Cao, Hongbin Sun, Xiaoan Wen, Jun Liu
A series of pentacyclic triterpene 3β-ester derivatives were designed, synthesized and evaluated as a new class of cholesteryl ester transfer protein (CETP) inhibitors for the treatment of dyslipidemia. In vitro screening assay showed that 5 out of 30 compounds displayed moderate inhibiting human CETP activity with IC50s less than 10 μM. Among them, compound 20 (IC50 = 2.3 μM) had the most potent biological activity, and effectively ameliorated plasma lipid levels of human adipose tissue specific CETP transgenic (ap2-CETPTg) mice and guinea pigs...
August 4, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28801108/breaching-barriers-in-glioblastoma-part-ii-targeted-drug-delivery-and-lipid-nanoparticles
#17
REVIEW
Ana Miranda, María Blanco-Prieto, João Sousa, Alberto Pais, Carla Vitorino
Tailored nanocarriers have gained huge research focus for brain drug delivery, aimed at combating several neuro-oncological conditions, such as the glioblastoma multiforme (GBM). The progress of knowledge on the pathogenesis of GBM has allowed identifying the major hurdles for efficient treatment, encompassing biological interfaces (blood-brain barrier and blood-brain tumour barrier), specificities of tumour microenvironment, as well as both bulk and glioma stem cell subpopulations. These findings provided new insights into the molecular basis of GBM, being a strong driving force behind development of targeted nanomedicines in this area...
August 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28795381/research-progress-on-prevention-and-treatment-of-glucolipid-metabolic-disease-with-integrated-traditional-chinese-and-western-medicine
#18
Jiao Guo
Hyperlipidemia, type 2 diabetes mellitus, nonalcoholic fatty liver and many other metabolic disorder are frequently co-existing in patients. In addition, these diseases are closely related in pathophysiological settings. However, increasing of the disease incidence, lacking of comprehensive prevention and control measurements against the key pathology point concomitant occurrence with the pattern of the single disease, single target therapy, that is leading therapeutic strategy for these metabolic disorders in the setting of Western medicine (WM)...
June 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28793934/statin-therapy-causes-gut-dysbiosis-in-mice-through-a-pxr-dependent-mechanism
#19
Jose A Caparrós-Martín, Ricky R Lareu, Joshua P Ramsay, Jörg Peplies, F Jerry Reen, Henrietta A Headlam, Natalie C Ward, Kevin D Croft, Philip Newsholme, Jeffery D Hughes, Fergal O'Gara
BACKGROUND: Statins are a class of therapeutics used to regulate serum cholesterol and reduce the risk of heart disease. Although statins are highly effective in removing cholesterol from the blood, their consumption has been linked to potential adverse effects in some individuals. The most common events associated with statin intolerance are myopathy and increased risk of developing type 2 diabetes mellitus. However, the pathological mechanism through which statins cause these adverse effects is not well understood...
August 9, 2017: Microbiome
https://www.readbyqxmd.com/read/28793863/cardiovascular-risk-and-dyslipidemia-among-persons-living-with-hiv-a-review
#20
REVIEW
Paolo Maggi, Antonio Di Biagio, Stefano Rusconi, Stefania Cicalini, Maurizio D'Abbraccio, Gabriella d'Ettorre, Canio Martinelli, Giuseppe Nunnari, Laura Sighinolfi, Vincenzo Spagnuolo, Nicola Squillace
BACKGROUND: Aim of this review is to focus the attention on people living with HIV infection at risk of developing a cardiovascular event. What is or what would be the most suitable antiretroviral therapy? Which statin or fibrate to reduce the risk? How to influence behavior and lifestyles? DISCUSSION: Prevention of cardiovascular disease (CVD) risk remains the first and essential step in a medical intervention on these patients. The lifestyle modification, including smoking cessation, increased physical activity, weight reduction, and the education on healthy dietary practices are the main instruments...
August 9, 2017: BMC Infectious Diseases
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