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https://www.readbyqxmd.com/read/28431436/enhanced-tearing-by-electrical-stimulation-of-the-anterior-ethmoid-nerve
#1
Mark Brinton, Andrea L Kossler, Zara M Patel, James Loudin, Manfred Franke, Christopher N Ta, Daniel Palanker
Purpose: Electrical neurostimulation enhances tear secretion, and can be applied to treatment of dry eye disease. Using a chronic implant, we evaluate the effects of stimulating the anterior ethmoid nerve on the aqueous, lipid, and protein content of secreted tears. Methods: Neurostimulators were implanted beneath the nasal mucosa in 13 New Zealand white rabbits. Stimulations (2.3-2.8 mA pulses of 75-875 μs in duration repeated at 30-100 Hz for 3 minutes) were performed daily, for 3 weeks to measure changes in tear volume (Schirmer test), osmolarity (TearLab osmometer), lipid (Oil-Red-O staining), and protein (BCA assay, mass spectrometry)...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28431025/1h-magnetic-resonance-spectroscopy-of-live-human-sperm
#2
S Reynolds, S J Calvert, M N Paley, A A Pacey
STUDY QUESTION: Can 1H Magnetic Resonance Spectroscopy (MRS) be used to obtain information about the molecules and metabolites in live human spermatozoa? SUMMARY ANSWER: Percoll-based density gradient centrifugation (DGC) followed by a further two washing steps, yielded enough sperm with minimal contamination (<0.01%) from seminal fluid to permit effective MRS which detected significant differences (p < 0.05) in the choline/glycerophosphocholine, lipid and lactate regions of the 1H MRS spectrum between sperm in the pellet and those from the 40/80% interface...
April 18, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28427629/development-of-a-novel-folate-modified-nanobubbles-with-improved-targeting-ability-to-tumor-cells
#3
Sujuan Duan, Lu Guo, Dandan Shi, Mengmeng Shang, Dong Meng, Jie Li
Conjugation of folate (FOL) to nanobubbles could enhance the selective targeting to tumors expressing high levels of folate receptor (FR). To further improve the selective targeting ability of FOL-modified nanobubbles, a novel FOL-targeted nanobubble ((FOL)2-NB) with increasing FOL content (accomplished by linking two FOL molecules per DSPE-PEG2000 chain) was synthesized, through the methods of mechanical shaking and low-speed centrifugation based on lipid-stabilized perfluoropropane. The bubble size and distribution range were measured by dynamic light scattering (DLS)...
July 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28425265/effects-of-ankaferd-bloodstopper-on-dermal-healing-in-diabetic-rats
#4
Sertaç Aktop, Burcu Çevreli, Deniz Genç, Emel Serdaroğlu Kaşikçi, Nil Çomunoğlu Üstündağ, Noushin Zibandeh, Elif Merve Özcan, Gökhan Göçmen, Mehmet Kamil Göker, İsmail Tayfun Uzbay, Tunç Akkoç
BACKGROUND/AIM: Diabetes mellitus inhibits wound-induced angiogenesis, impairs the wound healing process, and leads to the development of chronic wounds. Ankaferd BloodStopper (ABS) is a new and promising local haemostatic agent. Although the mechanism of ABS-mediated haemostasis is well established, little is known about the associated histological and biochemical tissue reactions. The aim of this study was to evaluate the effects of this new-generation local haemostatic agent on short-term soft-tissue healing in streptozotocin (STZ)-treated rats...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28420476/-mechanism-of-resolvins-in-reducing-the-inflammation-reaction-in-inflammatory-diseases
#5
Shunan Cui, Shanglong Yao, You Shang
Inflammation is an important mechanism for the host to resist external infection and injury. Under normal conditions, adaptive inflammatory response not only is conducive to the repair of damaged cells and tissues, but plays an important role to promote the internal environment to restored homeostasis. However, when the immune function is damaged, the unresolved and uncontrolled inflammation will cause non-specific tissue damage, which is linked to a variety of inflammatory diseases. In the acute inflammation, resolvins, a group of endogenous small molecular lipid mediators which are biosynthesized by polyunsaturated fatty acids, possess anti-inflammatory and pro-resolving actions, which are benefit for the repair of damaged tissue...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28420094/nonalcoholic-fatty-liver-disease-and-insulin-resistance-new-insights-and-potential-new-treatments
#6
REVIEW
Hironori Kitade, Guanliang Chen, Yinhua Ni, Tsuguhito Ota
Nonalcoholic fatty liver disease (NAFLD) is one of the most common chronic liver disorders worldwide. It is associated with clinical states such as obesity, insulin resistance, and type 2 diabetes, and covers a wide range of liver changes, ranging from simple steatosis to non-alcoholic steatohepatitis (NASH), liver cirrhosis, and hepatocellular carcinoma. Metabolic disorders, such as lipid accumulation, insulin resistance, and inflammation, have been implicated in the pathogenesis of NAFLD, but the underlying mechanisms, including those that drive disease progression, are not fully understood...
April 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28420093/potential-role-of-free-fatty-acids-in-the-pathogenesis-of-periodontitis-and-primary-sj%C3%A3-gren-s-syndrome
#7
REVIEW
Yosuke Shikama, Yasusei Kudo, Naozumi Ishimaru, Makoto Funaki
Clinical studies have shown that metabolic disorders such as type 2 diabetes and dyslipidemia are associated with increased risk of oral-related diseases, such as periodontitis and Sjögren's syndrome. Although changes in the immune system are critical in both of these metabolic disorders and oral-related diseases, the mechanism underlying the interaction between these diseases remains largely unknown. Obesity and type 2 diabetes are known to be associated with higher concentrations of free fatty acids in blood...
April 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28418481/comparison-of-recommended-eligibility-for-primary-prevention-statin-therapy-based-on-the-us-preventive-services-task-force-recommendations-vs-the-acc-aha-guidelines
#8
Neha J Pagidipati, Ann Marie Navar, Hillary Mulder, Allan D Sniderman, Eric D Peterson, Michael J Pencina
Importance: There are important differences among guideline recommendations for using statin therapy in primary prevention. New recommendations from the US Preventive Services Task Force (USPSTF) emphasize therapy based on the presence of 1 or more cardiovascular disease (CVD) risk factors and a 10-year global CVD risk of 10% or greater. Objective: To determine the difference in eligibility for primary prevention statin treatment among US adults, assuming full application of USPSTF recommendations compared with the American College of Cardiology/American Heart Association (ACC/AHA) guidelines...
April 18, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/28415407/formulation-by-design-based-risperidone-nano-soft-lipid-vesicle-as-a-new-strategy-for-enhanced-transdermal-drug-delivery-in-vitro-characterization-and-in-vivo-appraisal
#9
Syed Sarim Imam, Abdul Ahad, Mohammed Aqil, Mohd Akhtar, Yasmin Sultana, Asgar Ali
The present study was designed to formulate and optimize transdermal risperidone soft lipid vesicles. The formulation optimized with phospholipid, safranal and ethanol were incorporated as permeation and absorption enhancers. The optimized risperidone soft lipid vesicle was further evaluated for skin irritation study, in-vivo pharmacokinetic study and locomotor activity. Three factor three level Box-Behnken design (BBD) was used to statistically optimize soft lipid vesicle using safranal (A), ethanol (B)and phospholipid (C) as independent variable, while their effect was observed for vesicle size (Y1), entrapment efficiency (Y2) and flux (Y3)...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28409295/metal-chelator-tpen-selectively-induces-apoptosis-in-k562-cells-through-reactive-oxygen-species-signaling-mechanism-implications-for-chronic-myeloid-leukemia
#10
Luisa Rojas-Valencia, Carlos Velez-Pardo, Marlene Jimenez-Del-Rio
Chronic myeloid leukemia (CML) is a hematologic disorder characterized by the constitutive expression of BCR-ABL tyrosine kinase. Although successful implementation of tyrosine kinase inhibitors for the treatment of CML remain a traditional choice for molecularly targeted therapy, some patients present primary or secondary resistance to such therapy. Therefore, alternative therapeutic strategies are required to treat resistant CML cells. Accordingly, new anti-proliferative and/or pro-apoptotic compounds would be needed for clinical treatment...
April 13, 2017: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/28406244/cortistatin-reduces-atherosclerosis-in-hyperlipidemic-apoe-deficient-mice-and-the-formation-of-foam-cells
#11
Virginia Delgado-Maroto, Raquel Benitez, Irene Forte-Lago, Maria Morell, Elena Maganto-Garcia, Luciana Souza-Moreira, Francisco O'Valle, Mario Duran-Prado, Andrew H Lichtman, Elena Gonzalez-Rey, Mario Delgado
Atherosclerosis is a chronic inflammatory cardiovascular disease that is responsible of high mortality worldwide. Evidence indicates that maladaptive autoimmune responses in the arterial wall play critical roles in the process of atherosclerosis. Cortistatin is a neuropeptide expressed in the vascular system and atherosclerotic plaques that regulates vascular calcification and neointimal formation, and inhibits inflammation in different experimental models of autoimmune diseases. Its role in inflammatory cardiovascular disorders is largely unexplored...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28403011/emerging-roles-of-lipid-metabolism-in-cancer-progression
#12
Cyril Corbet, Olivier Feron
PURPOSE OF REVIEW: Lipid metabolism in cancer cells and tumor-associated stromal cells was recently identified to contribute to disease progression particularly in response to changes in tumor microenvironment such as acidosis and hypoxia. RECENT FINDINGS: New molecular mechanisms driving lipid metabolism in various cancers were elicited through genetic silencing, pharmacological inhibition of key metabolic enzymes, including those involved in fatty acid oxidation and synthesis, and modulation of diet composition...
April 11, 2017: Current Opinion in Clinical Nutrition and Metabolic Care
https://www.readbyqxmd.com/read/28402923/effect-of-the-treatment-with-euterpe-oleracea-mart-oil-in-rats-with-triton-induced-dyslipidemia
#13
Belmira S Faria E Souza, Helison O Carvalho, Irlon M Ferreira, Edilson L da Cunha, Albenise Santana Barros, Talisson Taglialegna, José C T Carvalho
OBJECTIVES: Dyslipidemias are defined as changes in lipid metabolism that have abnormal concentrations of lipids or lipoproteins in the bloodstream. Chronic increase in triglyceride and low-density lipoprotein (LDL-c) levels are known as risk factors for the atherogenesis process as well as other cardiovascular diseases (CVDs). The magnitude of the problems caused by dyslipidemias impels research by new agents that act in the prevention and control. Thus, products from the Amazonian biodiversity, such as Euterpe oleracea oil (OFEO), rich in unsaturated fatty acids (UFAs), constitutes a study source for the treatment of alterations in lipid metabolism...
April 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28400291/unmet-clinical-needs-in-the-treatment-of-systemic-fungal-infections-the-role-of-amphotericin-b-and-drug-targeting
#14
Raquel Fernández-García, Esther de Pablo, María Paloma Ballesteros, Dolores R Serrano
Recently an increase in both the prevalence and incidence of invasive fungal infections have been reported. The number of fungal species that can cause systemic mycoses are higher and current antifungal therapies are still far from ideal. The emergence of antifungal resistances has a major clinical impact when using azoles and echinocandins leading to possible treatment failure and ultimately putting the patient's life at risk. Amphotericin B can play a key role in treating severe invasive mycoses as the incidence of antifungal resistance is very low combined with a high efficacy against a wide range of fungi...
April 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28400053/proprotein-convertase-furin-pcsk3-and-atherosclerosis-new-insights-and-potential-therapeutic-targets
#15
REVIEW
Kun Ren, Ting Jiang, Xi-Long Zheng, Guo-Jun Zhao
Furin, a member of the mammalian proprotein convertases family, can promote the proteolytic maturation of proproteins. It is known that furin is predominantly present in certain cell types of human atherosclerotic lesions and neointima in animal models, including vascular smooth muscle cells, endothelial cells and mononuclear inflammatory cells. Evidence suggests that furin participates in the initiation and progression of atherosclerosis through regulation of lipid and cholesterol metabolism, inflammatory response, blood pressure and the formation of atherosclerotic lesions...
April 7, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28395380/streptozotocin-treated-high-fat-fed-mice-a-new-type-2-diabetes-model-used-to-study-canagliflozin-induced-alterations-in-lipids-and-lipoproteins
#16
Tian Yu, Mitchell J Sungelo, Ira J Goldberg, Hong Wang, Robert H Eckel
The pharmacological effects of type 2 diabetes (T2DM) medications on lipoprotein metabolism are difficult to assess in preclinical models because those created failure to replicate the human condition in which insulin deficiency is superimposed on obesity-related insulin resistance. To create a better model, we fed mice with high fat (HF) diet and treated the animals with low dose streptozotocin (STZ) to mimic T2DM. We used this model to evaluate the effects of canagliflozin (CANA), a drug that reduces plasma glucose by inhibiting the sodium-glucose transporter 2 (SGLT2), which mediates ~90% of renal glucose reabsorption] on lipid and lipoprotein metabolism...
April 10, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28393688/nanoscale-functional-biomaterials-for-cancer-theranostics
#17
Linying Liu, Xiaoshuang Li, Lei Chen, Xin Zhang
Nanomedicine is widely developed in recent years. In nanomedicine system, nanoscale and nanostructured functional materials are used to manipulate the human biology systems at the molecular level for cancer imaging and therapy. New nanostructure based functional materials consist of nanoscale liposomes, spheres, micelles, capsules, emulsion, suspension and phamacosomes. Several functional nanoparticles such as lipid-based and polymer-based materials are demonstrated to be drug delivery vehicles and imaging agents...
April 6, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28392860/the-effect-of-tofogliflozin-treatment-on-postprandial-glucose-and-lipid-metabolism-in-japanese-men-with-type-2-diabetes-a-pilot-study
#18
Hirokazu Kakuda, Junji Kobayashi, Masaru Sakurai, Masahiro Kakuda, Noboru Takekoshi
BACKGROUND: Postprandial hyperglycemia and hyperlipidemia are highly related to the development of atherosclerosis. Sodium/glucose cotransporter-2 (SGLT2) inhibitors have attracted attention as a new class of anti-diabetic agents for the treatment of type 2 diabetes. We investigated the effect of tofogliflozin on postprandial glucose and lipid metabolism in Japanese male patients with type 2 diabetes. METHODS: Ten Japanese men with type 2 diabetes (average age 66...
May 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28392679/depressive-symptoms-and-adherence-to-cardiometabolic-therapies-across-phases-of-treatment-among-adults-with-diabetes-the-diabetes-study-of-northern-california-distance
#19
Amy M Bauer, Melissa M Parker, Howard H Moffet, Dean Schillinger, Nancy E Adler, Alyce S Adams, Julie A Schmittdiel, Wayne J Katon, Andrew J Karter
OBJECTIVE: Among adults with diabetes, depression is associated with poorer adherence to cardiometabolic medications in ongoing users; however, it is unknown whether this extends to early adherence among patients newly prescribed these medications. This study examined whether depressive symptoms among adults with diabetes newly prescribed cardiometabolic medications are associated with early and long-term nonadherence. PATIENTS AND METHODS: An observational follow-up of 4,018 adults with type 2 diabetes who completed a survey in 2006 and were newly prescribed oral antihyperglycemic, antihypertensive, or lipid-lowering agents within the following year at Kaiser Permanente Northern California was conducted...
2017: Patient Preference and Adherence
https://www.readbyqxmd.com/read/28392013/characterizing-the-lipid-and-metabolite-changes-associated-with-placental-function-and-pregnancy-complications-using-ion-mobility-spectrometry-mass-spectrometry-and-mass-spectrometry-imaging
#20
Kristin E Burnum-Johnson, Erin S Baker, Thomas O Metz
Successful pregnancy is dependent upon discrete biological events, which include embryo implantation, decidualization, and placentation. Problems associated with each of these events can cause infertility or conditions such as preeclampsia. A greater understanding of the molecular changes associated with these complex processes is necessary to aid in identifying treatments for each condition. Previous nuclear magnetic resonance spectroscopy and mass spectrometry studies have been used to identify metabolites and lipids associated with pregnancy-related complications...
March 29, 2017: Placenta
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