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Archives of Physiology and Biochemistry

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https://www.readbyqxmd.com/read/28508677/ketonuria-may-be-associated-with-low-serum-amylase-independent-of-body-weight-and-glucose-metabolism
#1
Kei Nakajima, Eiji Oda
CONTEXT: Ketonuria, which reflects a preferential combustion of lipids relative to carbohydrates, is often observed in lean rather than obese people. Clinical studies have shown that individuals with diabetes and/or obesity predispose to have low serum amylase (LSA). OBJECTIVE: To investigate the association between ketonuria and LSA. METHODS: We examined ketonuria assessed by dipstick urinalysis and clinical parameters including serum amylase in 3638 Japanese people aged 25-79 years who underwent a health-screening checkup...
May 16, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28502193/early-onset-obesity-and-food-restriction-alter-hepatocyte-metabolism-in-adult-wistar-rats
#2
Nayra Thais D Branquinho, Gabriel Henrique P Cruz, Cristian L Borrasca, Lucas de Paula S Alves, Célia Regina de Godoy Gomes, Vilma Aparecida Ferreira de Godoi, Maria Montserrat Diaz Pedrosa
CONTEXT: Caloric restriction (CR) is suggested for overweight control. OBJECTIVE: Systemic and liver glucose metabolism in the reduced-litter (RL) rat model under 30% CR was investigated. MATERIALS AND METHODS: Newborn litters were organised in control (G9); RL with free diet (G3L); and RL with CR (G3R). Assessments were made at the age of 90 d. RESULTS: Higher liver glycogen content and changes in systemic glucose handling were found in the RL groups...
May 13, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28480754/low-dose-spironolactone-ameliorates-insulin-resistance-and-suppresses-elevated-plasminogen-activator-inhibitor-1-during-gestational-testosterone-exposure
#3
Lawrence A Olatunji, Taofeek O Usman, Aminat I Akinade, Oluwaseun A Adeyanju, InKyeom Kim, Ayodele O Soladoye
CONTEXT: Elevated gestational circulating testosterone has been associated with pathological pregnancies that increase the risk of development of cardiometabolic disorder in later life. OBJECTIVE: We hypothesised that gestational testosterone exposure, in late pregnancy, causes glucose deregulation and atherogenic dyslipidaemia that would be accompanied by high plasminogen activator inhibitor-1 (PAI-1). The study also hypothesise that low-dose spironolactone treatment would ameliorate these effects...
May 8, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28457144/molecular-effects-of-hesperetin-a-citrus-flavanone-on7-12-dimethylbenz-a-anthracene-induced-buccal-pouch-squamous-cell-carcinoma-in-golden-syrian-hamsters
#4
Sukumar Babukumar, Veerasamy Vinothkumar, Periyannan Velu, Duraisamy Ramachandhiran, Madhavan Ramados Nirmal
In recent years, researchers have been focused on citrus flavanone, a naturally occurring bioactive substance of hesperetin. To investigate the molecular mechanism based chemopreventive efficacy of hesperetin on 7,12-dimethylbenz(a)anthracene (DMBA) induced hamster buccal pouch (HBP) squamous cell carcinoma (SCC). The oral tumour was provoked by painted with 0.5% DMBA on left buccal pouch thrice a week for 10 consecutive weeks developed well-differentiated SCC and tumour formation was 100% in DMBA alone. We evaluated the chemopreventive potential of hesperetin by assessing the lipid peroxidation (LPO) by-products, status of enzymatic, non-enzymatic antioxidants, detoxifying agents etc...
May 1, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28452232/genetic-polymorphisms-of-il-23r-rs7517847-and-lep-rs7799039-among-egyptian-patients-with-hepatocellular-carcinoma
#5
Tahani Amer, Rizk El-Baz, Abdel-Rahman Mokhtar, Saad El-Shaer, Rami Elshazli, Ahmad Settin
BACKGROUND: Genetic polymorphisms of IL-23 R (rs7517847) and LEP (rs7799039) have been stated to be associated with various types of human cancers. The purpose of this work is to test the association of these genetic polymorphisms with hepatocellular carcinoma (HCC) among Egyptian patients. SUBJECTS AND METHODS: This study involved 150 unrelated Egyptian HCC patients in addition to 100 healthy controls from the same locality. DNA was genotyped for these genetic polymorphisms using the PCR-RFLP technique...
April 28, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28440667/camelus-dromedarius-glucose-transporter-4-in-silico-analysis-cloning-expression-purification-and-characterisation-in-e-coli
#6
Anwar Ahmed, Mohammed Arshad, Ajamaluddin Malik, Shama Parveen, Abdulrahman M Alsenaidy
Camels have exceptional carbohydrate metabolism as their plasma glucose level is high and have low whole body insulin sensitivity, similar to that observed in type 2 diabetes patients. We aimed at studing an important component of insulin signalling pathway, the GLUT4, in camel. Camelus dromedarius GLUT4 (CdGLUT4) CDS is 1530 nucleotide in length that encodes for a 55KDa protein. CdGLUT4 has 23 amino acid substitutions and 3N-glycosylation sites, compared to 2 in Human GLUT4. 3 D structures of CdGLUT4 and HsGLUT4 generated by homology modelling revealed conservation of characteristic signature motifs...
April 25, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28426339/fasting-levels-of-insulin-and-amylin-after-acute-pancreatitis-are-associated-with-pro-inflammatory-cytokines
#7
Nicola A Gillies, Sayali A Pendharkar, Ruma G Singh, John A Windsor, Madhav Bhatia, Maxim S Petrov
BACKGROUND: The prevalence of metabolic diseases continues to rise worldwide, with a growing recognition of metabolic dysregulation after acute inflammatory diseases such as acute pancreatitis (AP). Adipokines and cytokines play an important role in metabolism and the course of AP, but there is a paucity of research investigating their relationship with pancreatic hormones after AP. This study aimed to explore associations between pancreatic hormones with adipokines and cytokines to provide insights into the pathophysiology of altered pancreatic hormone secretion following AP...
April 20, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28372462/polysaccharides-extraction-from-opuntia-stricta-and-their-protective-effect-against-hepg2-cell-death-and-hypolipidaemic-effects-on-hyperlipidaemia-rats-induced-by-high-fat-diet
#8
Bahira Harrabi, Khaled Athmouni, Latifa Hamdaoui, Lobna Ben Mahmoud, Ahmed Hakim, Abdelfattah El Feki, Khaled Zeghal, Hanéne Ghozzi
The aim of this study was to analyse cytoprotective effect of polysaccharides compound from Opuntia stricta (O. stricta) cladode (POS) in vitro including its radical scavenging activities and protective effects against hypercholesterolaemia. Our results showed that glucose was the dominant monosaccharides (30.35%). Arabinose, pyranose, fructose, galactose, glucose, sorbitol, S-inositol, M-inositol, trehalose and saccharose found in this species. O. stricta polysaccharides did not cause any cytotoxic effect on HepG2 cells within the range of concentrations tested (0-400 μgml(-1))...
April 3, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28368219/reduced-expression-of-adipose-triglyceride-lipase-decreases-arachidonic-acid-release-and-prostacyclin-secretion-in-human-aortic-endothelial-cells
#9
Monika Riederer, Margarete Lechleitner, Harald Köfeler, Saša Frank
BACKGROUND: Vascular endothelial cells represent an important source of arachidonic acid (AA)-derived mediators involved in the generation of anti- or proatherogenic environments. Evidence emerged (in mast cells), that in addition to phospholipases, neutral lipid hydrolases as adipose triglyceride lipase (ATGL) also participate in this process. OBJECTIVE: To examine the impact of ATGL on AA-release from cellular phospholipids (PL) and on prostacyclin secretion in human aortic endothelial cells (HAEC)...
April 3, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28338348/liver-injury-following-small-intestinal-ischemia-reperfusion-in-rats-is-attenuated-by-pistacia-lentiscus-oil-antioxidant-and-anti-inflammatory-effects
#10
Saber Abdelkader Saidi, Marwa Ncir, Rim Chaaben, Kamel Jamoussi, Jos van Pelt, Abdelfattah Elfeki
CONTEXT: Intestinal ischemia-reperfusion (IIR) not only leads to severe intestine damage but also induced subsequent destruction of remote organs. OBJECTIVE: We investigated the protective effect of Pistascia lentiscus L. (Anacardiaceae) oil on IIR. MATERIALS AND METHODS: Wistar rats were divided into three groups: sham, intestinal IR and P. lentiscus pretreatment (n = 18 each). In the pretreatment group, oil was administered 1 h before induction of warm ischemia...
March 24, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28338341/natural-product-inhibitors-of-carbonic-anhydrase-i-and-ii-isoenzymes-osajin-and-pomiferin
#11
Esra Dilek, Hüseyin Serkan Erol, Ahmet Cakir, Murat Koc, Mesut Bünyami Halici
The aim of this study is to purify carbonic anhydrase I and II isoenzymes from human erythrocyte, isolate two natural products osajin (OSJ) and pomiferin (PMF) from Maclura pomifera fruits, and evaluate the in vitro effect of these natural metabolites on these isoenzymes. These natural products may be used as starting points for drug discovery (like drugs used in several therapeutic applications, including antiglaucoma activity). For the purification procedure, the Sepharose-4B-l-tyrosine-sulphonamide affinity chromatography was used...
March 24, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28332429/black-tea-supplementation-augments-redox-balance-in-rats-relevance-to-aging
#12
Dileep Kumar, Syed Ibrahim Rizvi
Several health beneficial effects have been attributed to tea consumption, most of the effects are due to the strong antioxidant property of tea catechins. The present study evaluates the effect of black tea extract (BTE) supplementation on the redox balance of rats at different stages in their life span. We have evaluated erythrocyte and plasma redox status in young (4 months), middle-aged (12 months) and old-aged (24 months) male Wistar rats, by quantifying an array of parameters linked to redox status...
March 23, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28330378/effects-of-exercise-training-on-kinin-receptors-expression-in-rats-with-myocardial-infarction
#13
Mei Shen, Min Yu, Jingya Li, Li Ma
OBJECTIVES: The objective of this study is to determine the role of kinin B1 and B2 receptors in exercise-induced cardiac muscle angiogenesis. METHOD: Thirty Wistar rats were randomly assigned to the control group, the myocardial infarction group and the exercise training group (myocardial infarction model was made and received 30 min exercise training on a treadmill). After 4 weeks of experiment, cardiac muscle was harvested. RESULTS: B1 and B2 receptor mRNA and protein levels in the exercise-training group were significantly higher than those in the myocardial infarction group, which were higher than those in the control group...
March 23, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28276708/the-effect-of-carnosine-on-methylglyoxal-induced-oxidative-stress-in-rats
#14
Zülbiye Yılmaz, Esra Betül Kalaz, A Fatih Aydın, Merva Soluk-Tekkeşin, Semra Doğru-Abbasoğlu, Müjdat Uysal, Necla Koçak-Toker
Methylglyoxal (MG) is generated from glycolytic metabolites, lipid peroxidation, glucose autooxidation and protein glycation. It is a prooxidant inducing oxidative stress and formation of advanced glycation end products (AGE). Effect of carnosine (CAR) as an antioxidant on toxicity due to MG has generated interest. In this study, rats were given incrementally increased doses (100-300 mg/kg) of MG in drinking water for ten weeks. CAR (250 mg/kg i.p.) was administered with MG. Plasma thiobarbituric reactive substances (TBARS), protein carbonyl (PC), advanced oxidation protein products (AOPP) and AGE levels were elevated by MG, and CAR decreased PC, AOPP and AGE levels...
March 6, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28276709/high-fat-diet-effects-on-metabolic-responses-to-chronic-stress
#15
Marzieh Nemati, Homeira Zardooz, Fatemeh Rostamkhani, Alireza Abadi, Forough Foroughi
CONTEXT: High-fat diets and chronic stress are prevalent risk factors for various chronic diseases in modern societies. OBJECTIVE: This study investigated the effect of high-fat diet on glucose-related metabolic responses to chronic foot-shock stress. MATERIALS AND METHODS: Male rats were divided into high-fat diet (containing 54.21% saturated and 44.89% unsaturated fatty acids) and normal diet groups and then into stress and non-stress subgroups...
March 3, 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28263096/glutamine-dipeptide-and-cortisol-change-the-liver-glucose-metabolism-and-reduce-the-severity-of-insulin-induced-hypoglycaemia-in-untreated-t1dm-swiss-mice
#16
Camila Bataglini, Diego G L Rezende, Marcos A Primo, Célia R G Gomes, Maria M D Pedrosa, Vilma A F Godoi
CONTEXT: Glutamine is conditionally essential in type 1 diabetes mellitus, and might be useful to counteract hypoglycaemia. OBJECTIVE: To investigate the systemic and hepatic effects of counter-regulatory hormones and glutamine dipeptide (GDP) during hypoglycemic episodes. MATERIALS AND METHODS: Diabetic Swiss mice made hypoglycaemic by insulin injection (1 U/kg) were given counter-regulatory hormones and/or GDP. Sixty minutes later, liver histology, liver glucose metabolism and plasma were assessed...
May 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28100069/the-effect-of-n-acetylcysteine-supplementation-on-serum-homocysteine-levels-and-hepatic-and-renal-oxidative-stress-in-homocysteine-thiolactone-treated-rats
#17
Gamze Kondakçı, A Fatih Aydın, Semra Doğru-Abbasoğlu, Müjdat Uysal
The effect of N-acetylcysteine (NAC) (1 g/kg body weight/day) on serum homocysteine (Hcy) levels, insulin resistance (IR), and hepatic and renal prooxidant-antioxidant balance was evaluated in rats treated with homocysteine thiolactone (HcyT) (500 mg/kg body weight/day for 6 weeks). Reactive oxygen species (ROS), malondialdehyde (MDA), glutathione, ferric reducing antioxidant power, and superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities were determined in the liver and kidney. HcyT elevated serum Hcy levels and caused IR, but liver and kidney function tests remained unchanged...
May 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28019124/immediate-and-residual-effects-of-low-dose-nandrolone-decanoate-and-treadmill-training-on-adipose-and-reproductive-tissues-of-male-wistar-rats
#18
Josilene M Rodrigues, Vinicius P P Oliveira, Julia P Furlan, Ana Claudia Munhoz, Marcelo R S Rempel, Marcia N Brito, Nilton A Brito, Maria M D Pedrosa, Cecília E M Costa
CONTEXT: Residual effects after nandrolone decanoate (ND) treatment are not reported. OBJECTIVE: Immediate and residual effects of low-dose ND and treadmill training were investigated. MATERIALS AND METHODS: Male rats were trained and/or ND-treated for four weeks and the assessments were made after this period or four weeks later. RESULTS: The groups did not differ in final plasma glucose or AUC of the ivGTT, but hyperinsulinemia was noticed in some trained/treated groups...
May 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28019119/evaluation-of-bacillus-subtilis-spb1-biosurfactant-effects-on-hyperglycemia-angiotensin-i-converting-enzyme-ace-activity-and-kidney-function-in-rats-fed-on-high-fat-high-fructose-diet
#19
Raida Zouari, Khaled Hamden, Abdelfattah El Feki, Khansa Chaabouni, Fatma Makni-Ayadi, Fahima Sallemi, Semia Ellouze-Chaabouni, Dhouha Ghribi-Aydi
This study investigated the protective and the curative effects of Bacillus subtilis SPB1 crude lipopeptide biosurfactant in alleviating induced obesity complications in rats fed on high-fat-high-fructose diet (HFFD). Male Wistar rats were divided into five groups with the following treatment schedule: normal diet-fed rats (CD), HFFD-fed rats, HFFD-fed rats supplemented with SPB1 biosurfactant from the first day of the experiment (HFFD + Bios1), rats fed on HFFD receiving standard drug (HFFD + Torva), or SPB1 biosurfactant (HFFD + Bios2) during the last 4 weeks of the study...
May 2017: Archives of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28019102/arecoline-aggravates-hypothyroidism-in-metabolic-stress-in-mice
#20
Romi Dasgupta, Aniruddha Chatterjee, Supriti Sarkar, B R Maiti
Millions of people consume betel nut for increased capacity of work. It contains arecoline which is highly toxic and has several untoward side effects on endocrine functions. In this article, the role of arecoline on thyroid function under metabolic stress was investigated in mice. Water or food-deprivation, each for 5 days, caused ultrastructural degeneration of thyro-follicular cells, evident from pycnotic nuclei, scanty rough endoplasmic reticulum and mitochondria followed by depletion of blood serum T3 and T4 levels with alteration of TSH level as compared with control...
May 2017: Archives of Physiology and Biochemistry
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