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https://www.readbyqxmd.com/read/28717763/burkitt-s-lymphoma-and-b-cell-lymphoma-unclassifiable-with-features-intermediate-between-diffuse-large-b-cell-lymphoma-and-burkitt-s-lymphoma-in-patients-with-hiv-outcomes-in-a-south-african-public-hospital
#1
Gerhard Sissolak, Matthew Seftel, Thomas S Uldrick, Tonya M Esterhuizen, Nooroudien Mohamed, Danie Kotze
PURPOSE: Burkitt's lymphoma (BL) is a common HIV-associated lymphoma in South Africa. B-cell lymphoma unclassifiable with features intermediate between diffuse large B-cell lymphoma and Burkitt's lymphoma (BL/DLBCL) also occurs in HIV infection. Outcomes of HIV-infected patients with BL or BL/DLBCL in a resource-constrained setting are not defined. METHODS: We performed a retrospective study of HIV-positive patients with BL or BL/DLBCL treated from 2004 to 2012 with curative intent at a publically funded academic medical center in South Africa...
June 2017: Journal of Global Oncology
https://www.readbyqxmd.com/read/28703957/lactose-free-frozen-yogurt-production-and-characteristics
#2
Katarzyna Skryplonek, David Gomes, Jorge Viegas, Carlos Pereira, Marta Henriques
BACKGROUND: Nowadays, consumer demand is driving better and more nutritious dairy products. Changing from traditional to new lactose-free products poses technological challenges for the food industry in order to maintain or improve their food characteristics and consumer preferences. METHODS: This study investigates the production of lactose-free frozen yogurt by enzymati- cally hydrolysis of lactose, and its influence on the final product characteristics. In the case of lactose-free products, commercial Ha-lactase® was used for hydrolysis, and the reaction occurred simultaneously with fermentation...
April 2017: Acta Scientiarum Polonorum. Technologia Alimentaria
https://www.readbyqxmd.com/read/28690131/country-regional-and-global-estimates-for-lactose-malabsorption-in-adults-a-systematic-review-and-meta-analysis
#3
Christian Løvold Storhaug, Svein Kjetil Fosse, Lars T Fadnes
BACKGROUND: Studies have shown wide variation in the prevalence of lactose malabsorption across the world, but no systematic reviews or meta-analyses have recently assessed the prevalence of lactose malabsorption in different geographical areas. We aimed to present an updated systematic review and meta-analysis on the prevalence of lactose malabsorption in adults, by countries and regions, and to assess the variation between different testing methods. METHODS: Studies reporting on prevalence of lactose malabsorption and lactase persistence were identified by searching MEDLINE and Embase from database inception to Nov 2, 2016...
July 6, 2017: Lancet. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28684688/gene-dairy-food-interactions-and-health-outcomes-a-review-of-nutrigenetic-studies
#4
REVIEW
Kevin B Comerford, Gonca Pasin
Each person differs from the next by an average of over 3 million genetic variations in their DNA. This genetic diversity is responsible for many of the interindividual differences in food preferences, nutritional needs, and dietary responses between humans. The field of nutrigenetics aims to utilize this type of genetic information in order to personalize diets for optimal health. One of the most well-studied genetic variants affecting human dietary patterns and health is the lactase persistence mutation, which enables an individual to digest milk sugar into adulthood...
July 6, 2017: Nutrients
https://www.readbyqxmd.com/read/28673071/lactase-non-persistent-genotype-distribution-in-italy
#5
Cristina Zadro, Savina Dipresa, Giovanni Zorzetti, Annalisa Pediroda, Francesco Menegoni
BACKGROUND: Adult-type hypolactasia is a frequent condition of lactose malabsorption; in Europe the distribution of adult-type hypolactasia have been shown to display a North-South gradient. Genotyping for LCT-13910 C>T polymorphism has been proposed as a useful diagnostic marker of adult-type hypolactasia. Data concerning lactase non-persistent genotype distribution in Italy are confused and not well characterized. The aim of this study was to determine the prevalence of CC-genotype corresponding to lactase non-persistence in Italian population...
September 2017: Minerva Gastroenterologica e Dietologica
https://www.readbyqxmd.com/read/28667642/optimization-of-nutritional-components-of-medium-by-response-surface-methodology-for-enhanced-production-of-lactase
#6
T C Venkateswarulu, K Vidya Prabhakar, R Bharath Kumar
Lactase has excellent applications in dairy industry and commercially this enzyme is produced from bacterial sources but not in high yields. In this work, the production of lactase was improved by designing of nutrient components in fermentation medium by one factor at a time. Lactose and yeast extract were selected as preferable carbon and nitrogen sources for lactase production with tryptophan and MgSO4 showing enhanced production. Statistical analysis proved to be a useful and powerful tool in developing optimum fermentation conditions...
July 2017: 3 Biotech
https://www.readbyqxmd.com/read/28664372/modeling-and-optimization-of-fermentation-variables-for-enhanced-production-of-lactase-by-isolated-bacillus-subtilis-strain-vuvd001-using-artificial-neural-networking-and-response-surface-methodology
#7
T C Venkateswarulu, K Vidya Prabhakar, R Bharath Kumar, S Krupanidhi
Modeling and optimization were performed to enhance production of lactase through submerged fermentation by Bacillus subtilis VUVD001 using artificial neural networks (ANN) and response surface methodology (RSM). The effect of process parameters namely temperature (°C), pH, and incubation time (h) and their combinational interactions on production was studied in shake flask culture by Box-Behnken design. The model was validated by conducting an experiment at optimized process variables which gave the maximum lactase activity of 91...
July 2017: 3 Biotech
https://www.readbyqxmd.com/read/28618651/modulatory-effects-of-caralluma-fimbriata-extract-against-high-fat-diet-induced-abnormalities-in-carbohydrate-metabolism-in-wistar-rats
#8
Sudhakara Gujjala, Mallaiah Putakala, Srinivasulu Nukala, Manjunatha Bangeppagari, Ramaswamy Rajendran, Saralakumari Desireddy
The present study was aimed to evaluate the modulatory effects of hydroalcoholic extract of Caralluma fimbriata (CFE) by assaying the activities of key enzymes of carbohydrate metabolism and changes in glycogen content (liver and muscle) in high-fat (HF) diet-induced diabetic rats. In vitro glucose uptake studies were carried out in both psoas muscle and adipose tissue. The inhibitory effect of the extract on α-amylase was determined in in vitro studies. Male Wistar rats of body weight around 180g were divided into five groups (n=8), two of these groups were fed with standard pellet diet and the other three groups were fed with HF- (60%) diet...
August 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28596597/smart-microparticles-with-a-ph-responsive-macropore-for-targeted-oral-drug-delivery
#9
Ankit Kumar, Carlo Montemagno, Hyo-Jick Choi
The development of a smart microencapsulation system programmed to actively respond to environmental pH change has long been recognized a key technology in pharmaceutical and food sciences. To this end, we developed hollow microparticles (MPs) with self-controlled macropores that respond to environmental pH change, using an Oil-in-Water emulsion technique, for oral drug delivery. We observed that freeze-drying of MPs induced closure of macropores. The closing/opening behavior of macropores was confirmed by exposing MPs encapsulating different ingredients (sulforhodamine b, fluorescent nanoparticles, and lactase) to simulated gastrointestinal (GI) fluids...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521673/simple-strategy-to-protect-lactase-activity-in-solid-formulation
#10
Aline Gravinez Perissinato, André Luis Morais Ruela, Gislaine Ribeiro Pereira, Jerusa Simone Garcia, Marcello Garcia Trevisan
Lactose intolerance is characterized by the absence of the enzyme lactase (beta-galactosidase) and affects two thirds of the world adult population. Our aim was to evaluate a lactase gastro formulation to ensure increased activity in the action site of the enzyme (lumen of the small intestine). Simultaneously, we also evaluated the commercial product stability and enzyme activity. When carrying out dissolution test in commercial product it is noted that the existing formulation is not able to protect the enzyme from degrading action of gastric environment (a loss of 86...
May 18, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28514399/-disaccharidase-deficiency-and-functional-bowel-diseases
#11
A I Parfenov, O V Akhmadullina, E A Sabelnikova, N I Belostotsky, M V Kirova, S G Khomeriki, S V Bykova
AIM: To elucidate the role of intestinal carbohydrases (glucoamylase, maltase, sucrose, and lactase) in the etiology and pathogenesis of functional bowel diseases (FBD). SUBJECTS AND METHODS: 74 patients (36 men and 38 women) aged 18 to 50 years with FBD were examined. According to Rome IV criteria (2016), there was diarrhea-predominant irritable bowel syndrome (IBS) in 21 patients, functional diarrhea (FD) in 33, constipation-predominant IBS in 6, functional constipation (FC) in 4, and mixed IBS in 10...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28497837/frequency-of-adult-type-associated-lactase-persistence-lct-13910c-t-genotypes-in-the-czech-slav-and-czech-roma-gypsy-populations
#12
Jaroslav A Hubácek, Věra Adámková, Lenka Šedová, Věra Olišarová, Václav Adámek, Valérie Tóthová
Lactase non-persistence (leading to primary lactose intolerance) is a genetically dependent inability to digest lactose in adulthood. As part of the human adaptation to dairying, the human lactase LCT-13910C/T mutation (which propagates adult expression of lactase) developed, spread and participated in the adaptation to dairying. This variant is associated with lactase activity persistence, and its carriers are able to digest lactose. We compared the frequencies of lactase 13910C/T (rs4988235) genotypes in Czechs/Slavs (N = 288) and Czech Gypsies/Roma (N = 300), two ethnically different groups where this polymorphism has not yet been analysed...
April 2017: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28490510/nonfermented-milk-and-other-dairy-products-associations-with-all-cause-mortality
#13
Gianluca Tognon, Lena M Nilsson, Dmitry Shungin, Lauren Lissner, Jan-Håkan Jansson, Frida Renström, Maria Wennberg, Anna Winkvist, Ingegerd Johansson
Background: A positive association between nonfermented milk intake and increased all-cause mortality was recently reported, but overall, the association between dairy intake and mortality is inconclusive.Objective: We studied associations between intake of dairy products and all-cause mortality with an emphasis on nonfermented milk and fat content.Design: A total of 103,256 adult participants (women: 51.0%) from Northern Sweden were included (7121 deaths; mean follow-up: 13.7 y). Associations between all-cause mortality and reported intakes of nonfermented milk (total or by fat content), fermented milk, cheese, and butter were tested with the use of Cox proportional hazards models that were adjusted for age, sex, body mass index, smoking status, education, energy intake, examination year, and physical activity...
May 10, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28481524/alginate-beads-containing-lactase-stability-and-microstructure
#14
Maria Victoria Traffano-Schiffo, Tatiana R Aguirre Calvo, Marta Castro-Giraldez, Pedro J Fito, Patricio R Santagapita
β-Galactosidase (lactase) is a widely used enzyme in the food industry; however, it has low stability against thermal and mechanical treatments. Due to this, the purpose of the present research was to analyze the encapsulation of lactase in alginate-Ca(II) beads in order to maintain its enzymatic activity toward freezing, freezing/thawing, and storage. Also, the effect of the addition of trehalose, and arabic and guar gums and their influence on the microstructure as well as on thermal properties and molecular mobility were studied...
May 19, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28462205/production-of-farmstead-lactose-free-pecorino-di-osilo-and-ricotta-cheeses-from-sheep-s-milk
#15
Luisa Pulinas, Carlo Spanu, Ilenia Idda, Ignazio Ibba, Gavino Nieddu, Salvatore Virdis, Christian Scarano, Francesca Piras, Nadia Spano, Gavino Sanna, Enrico Pietro Luigi De Santis
The present work was aimed to define and validate farmstead production of lactose-free Pecorino di Osilo cheese, fresh ricotta cheese, and salted and smoked ricotta cheese (Ricotta mustia). The enzymatic activity of the commercial preparation containing lactase (1.1 g/mL), preliminarily tested using a spectrophotometric titration, showed activity equal to 4950±40 neutral lactase unit/g. The amount of lactase required to obtain the lactose-free milk was then established in triplicate laboratory trials, by adding the enzyme at concentrations of 0...
January 24, 2017: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28460946/the-quality-of-low-lactose-milk-is-affected-by-the-side-proteolytic-activity-of-the-lactase-used-in-the-production-process
#16
Antonio Dario Troise, Enrica Bandini, Roberta De Donno, Geert Meijer, Marco Trezzi, Vincenzo Fogliano
Lactose intolerance syndrome can be efficiently tackled consuming low lactose products. Lactase is the key tool to manufacture low lactose milk (LLM): its addition during milk processing can be done "in batch", i.e. before thermal treatment, or directly "in pack" after sterilization. In this paper data on sensory properties, Maillard Reaction products (MRPs) and free amino acids formation were obtained on six commercial Italian LLMs over six months storage. They showed that the side proteolytic activity of lactase caused the release of amino acids with a significant higher MRPs and off-flavors formation in four out of five samples produced by adding the enzyme in the pack after thermal treatment...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28456399/prior-lactose-glycation-of-caseinate-via-the-maillard-reaction-affects-in-vitro-activities-of-the-pepsin-trypsin-digest-toward-intestinal-epithelial-cells
#17
X P Wang, X H Zhao
The well-known Maillard reaction in milk occurs between lactose and milk proteins during thermal treatment, and its effects on milk nutrition and safety have been well studied. A lactose-glycated caseinate was prepared via this reaction and digested using 2 digestive proteases, pepsin and trypsin. The glycated caseinate digest was assessed for its in vitro activities on rat intestinal epithelial cells in terms of growth proliferation, anti-apoptotic effect, and differentiation induction using caseinate digest as reference, to verify potential effects of the Maillard reaction on these activities of caseinate digest to the cells...
July 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28452238/identification-of-novel-genetic-variants-in-the-mutational-hotspot-region-14%C3%A2-kb-upstream-of-the-lct-gene-in-a-mexican-population
#18
Liliana Valencia, Andrés Randazzo, Peter Engfeldt, Lovisa A Olsson, Adolfo Chávez, Robert J Buckland, Torbjörn K Nilsson, Ricardo Almon
Several polymorphic loci linked to lactase persistence (LP) have been described, all located in a small mutational hotspot region far upstream (∼14 kb) of the lactase (LCT) gene. One is typically found in Europeans, LCT -13910C > T, several others are found in East Africans and Arabs, e.g. LCT -13907C > G and LCT -13915T > G. The possibility of similar loci, specific to populations in South and Central America, has not received much attention so far. To identify possible novel polymorphisms in the mutational hotspot region, we sampled 158 subjects from a rural area in South-Central Mexico...
April 28, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28445388/maternal-methyl-donor-supplementation-during-gestation-counteracts-the-bisphenol-a-induced-impairment-of-intestinal-morphology-disaccharidase-activity-and-nutrient-transporters-gene-expression-in-newborn-and-weaning-pigs
#19
Hong Liu, Jun Wang, Daolin Mou, Lianqiang Che, Zhengfeng Fang, Bin Feng, Yan Lin, Shengyu Xu, Jian Li, De Wu
This study was conducted to explore whether exposure to bisphenol A (BPA) during pregnancy could change intestinal digestion and absorption function in offspring using pigs as a model, and whether methyl donor (MET) could counteract the BPA-induced impacts. Fifty Landrace × Yorkshire sows were divided into four dietary groups throughout gestation: control diet (CON); control diet supplemented with BPA (50 mg/kg); control diet supplemented with MET (3 g/kg betaine, 400 mg/kg choline, 150 μg/kg vitamin B12, and 15 mg/kg folic acid); and control diet with BPA and MET supplementation (BPA + MET)...
April 26, 2017: Nutrients
https://www.readbyqxmd.com/read/28431176/effect-of-melatonin-on-renewal-of-chicken-small-intestinal-mucosa
#20
J Li, R X Li, G Liu, C F Lv, Y L Mi, C Q Zhang
A higher concentration of melatonin (MEL) in the intestine - even more than that in the plasma and pineal gland - implies its putative important role in the gastrointestinal structural or functional regulation. However, little evidence has shown that MEL can regulate the physiological functions of the intestinal mucosa. In this study, fertilized chicken eggs were treated with MEL (0.1 to 10 μg/d) from embryonic d 12 (E12) to post-hatching d 6 (D6), and the small intestine samples were collected at D6 to determine the changes in mucosal construction and function...
April 20, 2017: Poultry Science
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