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https://www.readbyqxmd.com/read/28931010/response-to-folfirinox-by-gender-in-patients-with-metastatic-pancreatic-cancer-results-from-the-prodige-4-accord-11-randomized-trial
#1
Aurélien Lambert, Marta Jarlier, Sophie Gourgou Bourgade, Thierry Conroy
BACKGROUND: Hohla et al. suggested that female gender could positively predict response to FOLFIRINOX in patients with advanced pancreatic cancer. In this study, we explored the response to the FOLFIRINOX regimen by gender within the trial PRODIGE4/ACCORD 11. PATIENTS AND METHODS: Data were described by gender, both in FOLFIRINOX group and in the intention-to-treat population of the trial. The relative effect of gender (females in comparison to males) on overall survival (OS) and progression-free survival was estimated by using a Cox proportional hazard model and was presented with the Hazard Ratio and their 95% confidence interval...
2017: PloS One
https://www.readbyqxmd.com/read/28930962/attenuation-of-hemorrhage-associated-lung-injury-by-adjuvant-treatment-with-c23-an-oligopeptide-derived-from-cold-inducible-rna-binding-protein
#2
Fangming Zhang, Weng-Lang Yang, Max Brenner, Ping Wang
BACKGROUND: Hemorrhagic shock (HS) is an important cause of mortality. HS is associated with an elevated incidence of acute lung injury and acute respiratory distress syndrome, significantly contributing to HS morbidity and mortality. Cold-inducible RNA-binding protein (CIRP) is released into the circulation during HS and can cause lung injury. C23 is a CIRP-derived oligopeptide that binds with high affinity to the CIRP receptor and inhibits CIRP-induced phagocyte secretion of TNF-α...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28930715/cigarette-smoking-attenuates-kidney-protection-by-angiotensin-converting-enzyme-inhibition-in-nondiabetic-chronic-kidney-disease
#3
Bethany Roehm, Jan Simoni, Jessica Pruszynski, Donald E Wesson
BACKGROUND: Cigarette smoking exacerbates the estimated glomerular filtration rate (eGFR) decline in nondiabetic chronic kidney disease (CKD) despite the kidney protection that is achieved by angiotensin converting enzyme inhibition (ACEI). Whether smoking cessation restores ACEI-related kidney protection is not known. METHODS: This 5-year, prospective, prevention trial recruited 108 smokers and 108 nonsmokers with stage-2 nondiabetic CKD with primary hypertension and urine albumin-to-creatinine ratio (Ualb) >200 mg/g...
September 21, 2017: American Journal of Nephrology
https://www.readbyqxmd.com/read/28930631/direct-evidence-of-intrinsic-blue-fluorescence-from-oligomeric-interfaces-of-human-serum-albumin
#4
Arpan Bhattacharya, Soumitra Bhowmik, Amit K Singh, Prashant Kodgire, Apurba K Das, Tushar Kanti Mukherjee
The molecular origin behind the concentration-dependent intrinsic blue fluorescence of human serum albumin (HSA) is not known yet. This unusual blue fluorescence is believed to be a characteristic feature of amyloid-like fibrils of protein/peptide and originates due to the delocalization of peptide bond electrons through the extended hydrogen bond networks of cross--sheet structure. Herein, by combining the results of spectroscopy, size exclusion chromatography, native gel electrophoresis and confocal microscopy, we have shown that the intrinsic blue fluorescence of HSA exclusively originates from oligomeric interfaces devoid of any amyloid-like fibrillar structure...
September 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28930473/molecular-insights-into-human-serum-albumin-as-a-receptor-of-amyloid-%C3%AE-in-the-extracellular-region
#5
Tae Su Choi, Hyuck Jin Lee, Jong Yoon Han, Mi Hee Lim, Hugh I Kim
Regulation of amyloid-β (Aβ) aggregation by metal ions and proteins is essential for understanding the pathology of Alzheimer's disease (AD). Human serum albumin (HSA), a regulator of metal and protein transportation, can modulate metal-Aβ interactions and Aβ aggregation in human fluid; however, the molecular mechanisms for such activities remain unclear. Herein, we report the molecular-level complexation between Zn(II), Cu(II), Aβ, and HSA, which is able to alter the aggregation and cytotoxicity of Aβ peptides and induce their cellular transportation...
September 20, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28930179/self-assembly-of-human-serum-albumin-a-simplex-phenomenon
#6
Garima Thakur, Kovur Prashanthi, Keren Jiang, Thomas Thundat
Spontaneous self-assemblies of biomolecules can generate geometrical patterns. Our findings provide an insight into the mechanism of self-assembled ring pattern generation by human serum albumin (HSA). The self-assembly is a process guided by kinetic and thermodynamic parameters. The generated protein ring patterns display a behavior which is geometrically related to a n-simplex model and is explained through thermodynamics and chemical kinetics.
September 20, 2017: Biomolecules
https://www.readbyqxmd.com/read/28929692/-metabolomics-of-bovine-serum-albumin-induced-allergic-reactions-based-on-uplc-q-tof-ms
#7
Yuan-Yuan Gu, Dan-Dan Zhang, Cheng Feng, Yu Wang, Da-Zhong Chen, Yan-Hong Wang
The metabonomic techniques were used to study the changes in endogenous metabolites between urines of rats in normal physiological conditions and bovine serum albumin induced allergic reactions, identify potential biomarkers associated with allergic reactions, and then analyze the metabolic pathways and the metabolic mechanisms of allergic reactions. The bovine serum albumin-induced allergic reactions in rats were adopted as a model to detect histamine and tryptase in rat serum and observe the issue morphology of lungs and trachea in rats...
November 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28929659/-effects-and-mechanisms-of-shenkang-injection-promoting-extracellular-matrix-degradation-via-regulating-erk1-2-mmps-signaling-pathway-in-renal-failure-rats
#8
Jing-Jing Yang, Zhi-Min Mao, Yi-Gang Wan, Wei Wu, Yan-Ru Huang, Ge Shi, Wen-Bei Han, Jian Yao
This study aimed to clarify preliminarily the effects and mechanisms of Shenkang injection (SKI) promoting extracellular matrix(ECM)degradation via regulating extracellular-signal regulated protein kinase(ERK)1/2/matrix metalloproteinases(MMPs)signaling pathway in renal failure rats. Twenty rats were randomly divided into 4 groups:the Sham group,the Model group,the SKI group and the Enalapril maleate(EM)group. The model rats with renal failure were induced by intragastric administration of adenine and unilateral ureteral obstruction(UUO)...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28929356/a-high-abdominal-aortic-calcification-score-on-ct-is-a-risk-factor-for-postoperative-pancreatic-fistula-in-elderly-patients-undergoing-pancreaticoduodenectomy
#9
Nao Kakizawa, Hiroshi Noda, Fumiaki Watanabe, Kosuke Ichida, Koichi Suzuki, Toshiki Rikiyama
BACKGROUND: To evaluate the clinical significance of a CT-based evaluation of abdominal aortic calcification (AAC) in the postoperative outcomes after pancreaticoduodenectomy (PD) in elderly patients. METHODS: Patients 70 years of age and older who were randomly assigned to Group A were compared with those younger than 70 who were assigned to Group B in terms of preoperative and intraoperative variables and postoperative outcomes. We compared the patients with clinically relevant postoperative pancreatic fistula (CR-POPF) (Group C) to those without CR-POPF (Group D), and especially Group A...
September 19, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28929205/simulation-of-the-osmosis-based-drug-encapsulation-in-erythrocytes
#10
Duobiao Ge, Lili Zou, Chengpan Li, Sen Liu, Shibo Li, Sijie Sun, Weiping Ding
Drug-loaded erythrocytes have been proposed for the treatment of disease. A common way to load drugs into erythrocytes is to apply osmotic shock. Currently, osmosis-based drug encapsulation is studied mainly experimentally, whereas a related theoretical model is still incomplete. In this study, a set of equations is developed to simulate the osmosis-based drug-encapsulation process. First, the modeling is validated with hemolysis rates and the drug-loaded quantities to be found in the literature. Then, the variation of the erythrocyte volume, formation of the pore on the erythrocyte membrane, and quantities of drug loaded into and hemoglobin released from erythrocytes are studied...
September 20, 2017: European Biophysics Journal: EBJ
https://www.readbyqxmd.com/read/28929101/current-trends-in-volume-replacement-therapy-and-the-use-of-synthetic-colloids-in-small-animals-an-internet-based-survey-2016
#11
Ivayla D Yozova, Judith Howard, Nadja E Sigrist, Katja-Nicole Adamik
The use of synthetic colloids (SCs), particularly hydroxyethyl starch (HES), in people has changed in recent years following new evidence raising concerns about their efficacy and safety. Although fluid therapy guidelines for small animals are often extrapolated from human medicine, little information exists on current practice in veterinary medicine. The objective of the present study was to investigate current fluid selection, use of plasma volume expanders including SCs, and recent changes in their use in small animal practice...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28928518/therapeutic-evaluation-of-grain-based-functional-food-formulation-in-a-geriatric-animal-model
#12
Deepa Teradal, Neena Joshi, Ravindranath H Aladakatti
This study investigates the effect of wholesome grain based functional food formulation, on clinical and biochemical parameters in 24-30 months old Wistar albino geriatric rats, corresponding to human age 60-75 years. Animals were randomly divided into five, groups. Experimental diets were compared to the basal rat diet (Group I). Four food, formulation were-wheat based (Group II), finger millet based (Group III), wheat based, diet + fenugreek seed powder (Group IV), finger millet based diet + fenugreek powder, (Group V)...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928176/controlling-nutritional-status-conut-score-as-a-predictor-of-all-cause-mortality-in-elderly-hypertensive-patients-a-prospective-follow-up-study
#13
Xiaonan Sun, Leiming Luo, Xiaoqian Zhao, Ping Ye
OBJECTIVES: The aim of this study was to elucidate the impact of nutritional status on survival per Controlling Nutritional Status (CONUT) score and Geriatric Nutritional Risk Index (GNRI) in patients with hypertension over 80 years of age. DESIGN: Prospective follow-up study. PARTICIPANTS: A total of 336 hypertensive patients over 80 years old were included in this study. OUTCOME MEASURES: All-cause deaths were recorded as Kaplan-Meier curves to evaluate the association between CONUT and all-cause mortality at follow-up...
September 18, 2017: BMJ Open
https://www.readbyqxmd.com/read/28927629/insight-into-the-interaction-between-chitosan-and-bovine-serum-albumin
#14
Guo Li, Jianying Huang, Tao Chen, Xiangyang Wang, Haijiang Zhang, Qing Chen
Exploiting the uses of proteins and polysaccharides is of increasing interest because the combination of the attributes of these two types of biopolymers can produce small emulsion droplets with good physical stability. The objective of this study was to evaluate the effect of adding chitosan to a bovine serum albumin (BSA) solution at different pH values, and the consequent conformational changes were monitored using UV-vis absorption spectroscopy and fluorescence spectroscopy. Spectroscopic observations were further combined with rheological analysis results to illustrate the interaction mechanism...
November 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28927462/generation-of-special-autosomal-dominant-polycystic-kidney-disease-ipscs-with-the-capability-of-functional-kidney-like-cell-differentiation
#15
Jiahui Huang, Shumin Zhou, Xin Niu, Bin Hu, Qing Li, Feng Zhang, Xue Zhang, Xiujuan Cai, Yuanlei Lou, Fen Liu, Chenming Xu, Yang Wang
BACKGROUND: Human induced pluripotent stem cells (iPSCs) have been verified as a powerful cell model for the study of pathogenesis in hereditary disease. Autosomal dominant polycystic kidney disease (ADPKD) is caused by mutations of PKD or non-PKD genes. The pathogenesis of ADPKD remains unexplored because of the lack of a true human cell model. METHODS: Six ADPKD patients and four healthy individuals were recruited as donors of somatic cells from a Chinese ADPKD family without mutations of the PKD genes but carrying SAMSN1 gene deletion...
September 19, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28926916/improved-methanization-and-microbial-diversity-during-batch-mode-cultivation-with-repetition-of-substrate-addition-using-defined-organic-matter-and-marine-sediment-inoculum-at-seawater-salinity
#16
Toyokazu Miura, Akihisa Kita, Yoshiko Okamura, Tsunehiro Aki, Yukihiko Matsumura, Takahisa Tajima, Junichi Kato, Yutaka Nakashimada
The activation of microbes, which are needed to initiate continuous methane production, can be accomplished by fed-batch methanization. In the present study, marine sediment inoculum was activated by batch mode methanization with repetition of substrate addition using defined organic matter from sugar, protein, or fat at seawater salinity to investigate the potential for application of the activation method to various types of saline waste and microbial community compositions. All substrates had methane potentials close to the theoretical value except for bovine serum albumin (BSA) whose methane potential was lower, but the maximum methane potential reached the value during repeated methanization...
September 5, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28926834/heme-oxygenase-activity-and-heme-binding-in-a-neonatal-mouse-model
#17
Stephanie Kourula, Joyce Ang, Hui Zhao, Flora Kalish, Peter Vandenabeele, Karl G Sylvester, Ronald J Wong, David K Stevenson
BACKGROUND: Severe hemolytic disease of the newborn leads to the release of pro-oxidative free heme (FH). Heme oxygenase (HO) is primarily responsible for detoxifying FH. OBJECTIVE: To investigate the protective effects of HO in a model of heme overload. METHODS: For in vitro studies, NIH3T3 HO-1-luc cells were incubated with 10, 30, or 60 µM FH or methemalbumin (MHA). HO-1 promoter activity was assessed 3, 6, and 24 h after treatment. Cell survival was indexed by viability assays...
September 20, 2017: Neonatology
https://www.readbyqxmd.com/read/28926772/ultrasound-assisted-interaction-between-chlorin-e6-and-human-serum-albumin-ph-dependence-singlet-oxygen-production-and-formulation-effect
#18
Mihaela N Mocanu, Fei Yan
The interaction between chlorin e6 (Ce6) and human serum albumin (HSA) in the presence and absence of ultrasound have been investigated by ultraviolet-visible absorption spectroscopy and fluorescence spectroscopy. Ce6 is found to bind strongly to HSA at or near physiological pH conditions, but the strength of the binding is significantly weakened at lower pHs. The intrinsic fluorescence of HSA is incrementally quenched with increasing concentration of Ce6, and the quenching is enhanced after exposure to high-frequency ultrasound...
September 13, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28926756/warfarin-inhibits-allosterically-the-reductive-nitrosylation-of-ferric-human-serum-heme-albumin
#19
Paolo Ascenzi, Alessio Bocedi, Magda Gioia, Gabriella Fanali, Mauro Fasano, Massimo Coletta
Human serum heme-albumin (HSA-heme-Fe) displays heme-based ligand binding and (pseudo-)enzymatic properties. Here, the effect of the prototypical drug warfarin on kinetics and thermodynamics of NO binding to ferric and ferrous HSA-heme-Fe (HSA-heme-Fe(III) and HSA-heme-Fe(II), respectively) and on the NO-mediated reductive nitrosylation of the heme-Fe atom is reported; data were obtained between pH5.5 and 9.5 at 20.0°C. Since warfarin is a common drug, its effect on the reactivity of HSA-heme-Fe represents a relevant issue in the pharmacological therapy management...
September 5, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28925865/structural-changes-of-human-serum-albumin-hsa-in-simulated-microgravity
#20
Azadeh Hekmat, Zahra Hajebrahimi, Amir Motamedzade
Nowadays, the biological effects of microgravity have been the subject of various experimental researches. The purpose of this study was to investigate the probable biological effects of microgravity on the human serum albumin (HSA) structure after 3 and 24 h exposure via various spectroscopic instruments. The UV-Visible, near-UV-CD and intrinsic fluorescence spectroscopy represented that microgravity can remarkably change the tertiary structure of HSA. Additionally, the ANS affinity for HSA incremented when the protein was exposed to simulate microgravity compared to unexposed HSA, which may possibly have appeared attributable to expansion of the structure of simulated HSA...
September 17, 2017: Protein and Peptide Letters
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