keyword
MENU ▼
Read by QxMD icon Read
search

Lipase

keyword
https://www.readbyqxmd.com/read/28934818/effects-of-zinc-alpha2-glycoprotein-on-lipid-metabolism-of-liver-in-high-fat-diet-induced-obese-mice
#1
Guoqiang Fan, Yu Qiao, Shixing Gao, Jun Guo, Ruqian Zhao, Xiaojing Yang
Zinc alpha2 glycoprotein (ZAG) is a new type of adipokine involved in adipose tissue mobilization, however, little is known about its lipid metabolism effect in liver. Therefore, we investigated the effects of ZAG in the regulation of hepatic lipid accumulation. Mice were randomly divided into two groups; one was fed a normal diet and another was fed a high-fat diet for eight weeks to establish obesity model. After that, the normal diet group was divided into ND (injection of pcDNA3.1) and NDZ (injection of ZAG recombinant plasmid) and the high-fat diet group was divided into HF (injection of pcDNA3...
September 21, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28934090/adipogenic-effects-and-gene-expression-profiling-of-firemaster%C3%A2-550-components-in-human-primary-preadipocytes
#2
Emily W Y Tung, Vian Peshdary, Remi Gagné, Andrea Rowan-Carroll, Carole L Yauk, Adéle Boudreau, Ella Atlas
BACKGROUND: Exposure to flame retardants has been associated with negative health outcomes including metabolic effects. As polybrominated diphenyl ether flame retardants were pulled from commerce, human exposure to new flame retardants such as Firemaster® 550 (FM550) has increased. Although previous studies in murine systems have shown that FM550 and its main components increase adipogenesis, the effects of FM550 in human models have not been elucidated. OBJECTIVES: The objectives of this study were to determine if FM550 and its components are active in human preadipocytes, and to further investigate their mode of action...
September 14, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/28933568/seasonal-variation-in-plasma-lipids-and-lipases-in-young-healthy-humans
#3
Trinitat Cambras, Juan A Baena-Fustegueras, Eva Pardina, David Ricart-Jané, Joana Rossell, Antoni Díez-Noguera, Julia Peinado-Onsurbe
Although intermediate metabolism is known to follow circadian rhythms, little information is available on the variation in lipase activities (lipoprotein and hepatic lipase, LPL and HL, respectively) and lipids throughout the year. In a cross-sectional study, we collected and analysed blood from 245 healthy students (110 men and 135 women) between 18 and 25 years old from the University of Barcelona throughout the annual campaign (March, May, October and December) of the blood bank. All subjects gave their written informed consent to participate...
September 21, 2017: Chronobiology International
https://www.readbyqxmd.com/read/28929427/backbone-and-ile-%C3%AE-1-leu-val-methyl-1-h-15-n-and-13-c-chemical-shift-assignments-for-rhizopus-chinensis-lipase
#4
Meng Zhang, Xiao-Wei Yu, G V T Swapna, Gaohua Liu, Rong Xiao, Yan Xu, Gaetano T Montelione
Lipase r27RCL is a 296-residue, 33 kDa monomeric enzyme with high ester hydrolysis activity, which has significant applications in the baking, paper and leather industries. The lipase gene proRCL from Rhizopus microsporus var. chinensis (also Rhizopus chinensis) CCTCC M201021 was cloned as a fusion construct C-terminal to a maltose-binding protein (MBP) tag, and expressed as MBP-proRCL in an Escherichia coli BL21 trxB (DE3) expression system with uniform (2)H,(13)C,(15)N-enrichment and Ile-δ1, Leu, and Val (13)CH3 methyl labeling...
September 19, 2017: Biomolecular NMR Assignments
https://www.readbyqxmd.com/read/28928527/lipase-catalyzed-transesterification-of-ethyl-butyrate-synthesis-in-n-hexane-a-kinetic-study
#5
N Annapurna Devi, G B Radhika, R J Bhargavi
Kinetics of lipase catalyzed transesterification of ethyl caprate and butyric acid was investigated. The objective of this work was to propose a reaction mechanism and develop a rate equation for the synthesis of ethyl butyrate by transesterification using surfactant coated lipase from Candida rugosa. The reaction rate could be described in terms of Michaelis-Menten equation with a Ping-Pong Bi-Bi mechanism and competitive inhibition by both the substrates. The values of kinetic parameters computed were Vmax = 2...
August 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28928121/novel-pharmacological-probes-reveal-abhd5-as-a-locus-of-lipolysis-control-in-white-and-brown-adipocytes
#6
Elizabeth A Rondini, Ljiljana Mladenovic-Lucas, William R Roush, Geoff Halvorsen, Alex E Green, James G Granneman
Current knowledge regarding acute regulation of adipocyte lipolysis is largely based on receptor-mediated activation or inhibition of pathways that influence intracellular levels of cyclic AMP (cAMP), thereby affecting protein kinase A (PKA) activity. We recently identified synthetic ligands of α-β-hydrolase domain containing 5 (ABHD5) that directly activate adipose triglyceride lipase (ATGL) by dissociating ABHD5 from its inhibitory regulator, perilipin-1 (PLIN1). In the current study we used these novel ligands to determine the direct contribution of ABHD5 to various aspects of lipolysis control in white (3T3-L1) and brown adipocytes...
September 19, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28928093/effect-of-sodium-glucose-cotransporter-2-sglt2-inhibition-on-weight-loss-is-partly-mediated-by-liver-brain-adipose-neurocircuitry
#7
Yoshikazu Sawada, Yoshihiko Izumida, Yoshinori Takeuchi, Yuichi Aita, Nobuhiro Wada, EnXu Li, Yuki Murayama, Xiaoying Piao, Akito Shikama, Yukari Masuda, Makiko Nishi-Tatsumi, Midori Kubota, Motohiro Sekiya, Takashi Matsuzaka, Yoshimi Nakagawa, Yoko Sugano, Hitoshi Iwasaki, Kazuto Kobayashi, Shigeru Yatoh, Hiroaki Suzuki, Hiroaki Yagyu, Yasushi Kawakami, Takashi Kadowaki, Hitoshi Shimano, Naoya Yahagi
Sodium-glucose cotransporter 2 (SGLT2) inhibitors have both anti-diabetic and anti-obesity effects. However, the precise mechanism of the anti-obesity effect remains unclear. We previously demonstrated that the glycogen depletion signal triggers lipolysis in adipose tissue via liver-brain-adipose neurocircuitry. In this study, therefore, we investigated whether the anti-obesity mechanism of SGLT2 inhibitor is mediated by this mechanism. Diet-induced obese mice were subjected to hepatic vagotomy (HVx) or sham operation and loaded with high fat diet containing 0...
September 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28927609/structure-and-properties-of-oil-palm-based-nanocellulose-reinforced-chitosan-nanocomposite-for-efficient-synthesis-of-butyl-butyrate
#8
Nursyafiqah Elias, Sheela Chandren, Nursyafreena Attan, Naji Arafat Mahat, Fazira Ilyana Abdul Razak, Joazaizulfazli Jamalis, Roswanira Abdul Wahab
In this study, nanocellulose (NC) was successfully extracted from oil palm frond leaves (OPFL) using a combination of bleaching, alkaline treatment and acid hydrolysis. X-ray diffractogram revealed the extracted NC was crystalline with a crystallinity index of 70.2%. This indicates its suitability as nano-fillers for preparing the chitosan/nanocellulose (CS-NC) supports to immobilize Candida rugosa lipase (CRL) to produce the CRL/CS-NC biocatalysts. FTIR, FESEM and TGA characterizations of the CRL/CS-NC confirm the CRLs were successfully conjugated to the CS-NC supports...
November 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28927429/the-impact-of-lipoprotein-lipase-deficiency-on-health-related-quality-of-life-a-detailed-structured-qualitative-study
#9
Sasi Neelamekam, See Kwok, Rachel Malone, Anthony S Wierzbicki, Handrean Soran
BACKGROUND: Lipoprotein lipase deficiency (LPLD) is an autosomal recessive inherited disorder caused by loss-of-function mutations in genes involved in the lipoprotein lipase pathway. It is characterised by chylomicronaemia, severe hypertriglyceridaemia and an increased risk of recurrent pancreatitis that often requires hospitalisation. This research aimed to improve our understanding of the debilitating impact that LPLD has on the daily lives of patients and their families. METHODS: The research comprised a 2-h interview with the patient and, where possible, a 1-h interview with a family member; a 1-week pre- and post-interview task (written and/or video diary); and a 30-45-min follow-up telephone interview...
September 19, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28926992/the-native-fruit-geoffroea-decorticans-from-arid-northern-chile-phenolic-composition-antioxidant-activities-and-in-vitro-inhibition-of-pro-inflammatory-and-metabolic-syndrome-associated-enzymes
#10
Felipe Jiménez-Aspee, Cristina Theoduloz, Maria Del Pilar C Soriano, Maider Ugalde-Arbizu, Maria Rosa Alberto, Iris Catiana Zampini, Maria Inés Isla, Mario J Simirigiotis, Guillermo Schmeda-Hirschmann
The native tree Geoffroea decorticans (chañar) grows in the arid lands of northern Chile. It has been used as a food plant since prehistoric times. Phenolic-enriched extracts (PEEs) of Chilean chañar fruits were assessed for their chemical composition, antioxidant properties and inhibition of pro-inflammatory and metabolic syndrome-associated enzymes. Phenolic profiles were determined by HPLC-DAD-MS/MS. The PEEs of G. decorticans showed a strong effect towards the enzymes COX-1/COX-2, with inhibition percentages ranging from inactive to 92...
September 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28925972/improving-the-efficiency-of-new-automatic-dishwashing-detergent-formulation-by-addition-of-thermostable-lipase-protease-and-amylase
#11
Ashwini Naganthran, Malihe Masomian, Raja Noor Zaliha Raja Abd Rahman, Mohd Shukuri Mohamad Ali, Hisham Mohd Nooh
The use of T1 lipase in automatic dishwashing detergent (ADD) is well established, but efficiency in hard water is very low. A new enzymatic environmentally-friendly dishwashing was formulated to be efficient in both soft and hard water. Thermostable enzymes such as T1 lipase from Geobacillus strain T1, Rand protease from Bacillussubtilis strain Rand, and Maltogenic amylase from Geobacillus sp. SK70 were produced and evaluated for an automatic dishwashing detergent formulation. The components of the new ADD were optimized for compatibility with these three enzymes...
September 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28925953/transesterification-synthesis-of-chloramphenicol-esters-with-the-lipase-from-bacillus-amyloliquefaciens
#12
Fengying Dong, Lingmeng Li, Lin Lin, Dannong He, Jingwen Chen, Wei Wei, Dongzhi Wei
This work presents a synthetic route to produce chloramphenicol esters by taking advantage the high enantio- and regio-selectivity of lipases. A series of chloramphenicol esters were synthesized using chloramphenicol, acyl donors of different carbon chain length and lipase LipBA (lipase cloned from Bacillus amyloliquefaciens). Among acyl donors with different carbon chain lengths, vinyl propionate was found to be the best. The influences of different organic solvents, reaction temperature, reaction time, enzyme loading and water content on the synthesis of the chloramphenicol esters were studied...
September 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28925902/adipose-triglyceride-lipase-regulation-an-overview
#13
Ines Katrin Cerk, Lisa Wechselberger, Monika Oberer
Adipose triglyceride lipase (ATGL) is the key-enzyme for the release of fatty acids (FAs) from triacylglycerol (TG) stores during intracellular lipolysis producing FAs used for energy production. There is growing evidence that the products and intermediates from lipolytic breakdown during the FA mobilization process also have fundamental regulatory functions affecting cell signaling, gene expression, metabolism, cell growth, cell death, and lipotoxicity. Regulation of ATGL is therefore vital for maintaining a defined balance between lipid storage and mobilization...
September 18, 2017: Current Protein & Peptide Science
https://www.readbyqxmd.com/read/28925157/-studies-on-hibernation-pivotal-temperature-of-whitmania-pigra
#14
Shi-Meng Yan, Hong-Zhuan Shi, Qiao-Sheng Guo, Jia Wang, Bin Wu, Guo-Wei Shi, Meng-Meng Li, Dao-Xin Dai, Man-Jun Wu
The biological characteristics, oxygen consumption, oxygen consumption rate, and activities of amylase, lipase and protease of Whitmania pigra at different temperature were studied by using direct observational method, the still water method and 3, 5-dinitrosalicylic acid colorimetry, right-nitrophenyl palmitate ester(ρ-NPP)colorimetry and folin-phenol method.The results revealed that with decreasing water temperature, the daily activity and the daily feeding ration were decreased. As the temperature was lowered to 4 ℃, the head and tail of Wh...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28924089/synthesis-of-chirally-pure-enantiomers-by-lipase
#15
Kamal Kumar Bhardwaj, Reena Gupta
Pure enantiomers can be produced by chemical and enzymatic methods. Enzymatic methods to produce pure enantiomers are more advantageous. High enantiomeric excess is the advantage of enzymatic method, resulting from the inherent selectivity of the enzyme. Lipase (EC 3.1.1.3) enzymes are widely used for the synthesis of chirally pure enantiomers because of their stereoselectivities which can satisfy the growing demand for obtaining optically active compounds. Various methods are used for the synthesis of chirally pure enantiomers, however kinetic resolution and asymmetric synthesis are more common...
September 15, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28924085/an-improved-enzymatic-indirect-method-for-simultaneous-determinations-of-3-mcpd-esters-and-glycidyl-esters-in-fish-oils
#16
Kinuko Miyazaki, Kazuo Koyama
The enzymatic indirect method for simultaneous determinations of 3-chloro-1, 2-propanediol fatty acid esters (3-MCPD-Es) and glycidyl fatty acid esters (Gly-Es) make use of lipase from Candida cylindracea (previously referred to as C. rugosa). Because of low substrate specificity of the lipase for esters of polyunsaturated fatty acids (PUFA), such as docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), fish oils high in PUFAs are currently excluded from the range of application of the method. The objective of this study was to make the enzymatic indirect method applicable to fats and oils containing PUFAs...
September 15, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28924047/endothelial-rab7-gtpase-mediates-tumor-growth-and-metastasis-in-lysosomal-acid-lipase-deficient-mice
#17
Ting Zhao, Xinchun Ding, Cong Yan, Hong Du
Tumors depend on their microenvironment for sustained growth, invasion and metastasis. In this environment, endothelial cells (ECs) are an important stromal cell type interacting with malignant cells to facilitate tumor angiogenesis and cancer cell extravasation. Of note, lysosomal acid lipase (LAL) deficiency facilitates melanoma growth and metastasis. ECs from LAL-deficient (lal-/-) mice possess enhanced proliferation, migration, and permeability of inflammatory cells by activating the mammalian target of rapamycin (mTOR) pathway...
September 18, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28923075/lipase-and-biosurfactant-from-ochrobactrum-intermedium-strain-mzv101-isolated-by-washing-powder-for-detergent-application
#18
Mina Zarinviarsagh, Gholamhossein Ebrahimipour, Hossein Sadeghi
BACKGROUND: Alkaline thermostable lipase and biosurfactant producing bacteria are very interested at detergent applications, not only because of their eco-friendly characterize, but alsoproduction lipase and biosurfactant by using cheap materials. Ochrobactrum intermedium strain MZV101 was isolated as washing powder resistant, alkaline thermostable lipase and biosurfactant producing bacterium in order to use at detergent applications. METHODS: O. intermedium strain MZV101 produces was lipase and biosurfactant in the same media with pH 10 and temperature of 60 °C...
September 18, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28922188/new-insights-into-the-role-of-glycosylation-in-lipoprotein-metabolism
#19
Marjolein A W van den Boogert, Daniel J Rader, Adriaan G Holleboom
PURPOSE OF REVIEW: Human genetics has provided new insights into the role of protein glycosylation in regulating lipoprotein metabolism. Here we review these new developments and discuss the biological insights they provide. RECENT FINDINGS: Case descriptions of patients with congenital defects in N-glycosylation (CDG-I) frequently describe a distinct hypocholesterolemia in these rare multisystem clinical syndromes. Two novel CDGs with disturbed Golgi homeostasis and trafficking defects result in mixed glycosylation disorders, hepatic steatosis and hypercholesterolemia...
September 15, 2017: Current Opinion in Lipidology
https://www.readbyqxmd.com/read/28919062/progress-and-challenges-in-anti-obesity-pharmacotherapy
#20
REVIEW
Daniel H Bessesen, Luc F Van Gaal
Obesity is a serious and growing worldwide health challenge. Healthy lifestyle choices are the foundation of obesity treatment. However, weight loss can lead to physiological adaptations that promote weight regain. As a result, lifestyle treatment alone typically produces only modest weight loss that is difficult to sustain. In other metabolic diseases, pharmacotherapy is an accepted adjunct to lifestyle. Several anti-obesity drugs have been approved in the USA, European Union, Australia, and Japan including sympathomimetics, pancreatic lipase inhibitors, GABAA receptor activators, a serotonin 2C receptor agonist, opioid antagonist, dopamine-norepinephrine reuptake inhibitor, and glucagon-like peptide-1 (GLP-1) receptor agonists...
September 14, 2017: Lancet Diabetes & Endocrinology
keyword
keyword
32086
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"