keyword
MENU ▼
Read by QxMD icon Read
search

Lactase

keyword
https://www.readbyqxmd.com/read/29321359/association-of-lactase-13910-c-t-polymorphism-with-bone-mineral-density-and-fracture-risk-a-meta-analysis
#1
Yougen Wu, Yinghua Li, Yunqing Cui, Yunjiao Zhou, Qingqing Qian, Yang Hong
A number of studies have investigated the association of lactase (LCT,C/T-13910) gene polymorphismwith bonemineral density (BMD) and fracture risk, but previous results were inconclusive. In this study, a meta-analysis was performed to quantify the association of LCT (C/T-13910) polymorphism with BMD and fracture risk. Eligible publications were searched in the PubMed, Web of Science, Embase databases, Google Scholar, Yahoo and Baidu. Pooled weighed mean difference (WMD) or odds ratio (OR) with their 95% confidence interval (CI) were calculated using a fixed-effects or random-effects model...
December 2017: Journal of Genetics
https://www.readbyqxmd.com/read/29317064/comparison-of-geographic-distributions-of-irritable-bowel-syndrome-with-inflammatory-bowel-disease-fail-to-support-common-evolutionary-roots-irritable-bowel-syndrome-and-inflammatory-bowel-diseases-are-not-related-by-evolution
#2
Andrew Szilagyi, Xiaoqing Xue
Irritable Bowel Syndrome (IBS) shares overlapping symptoms and some features of pathogenesis with Inflammatory Bowel Diseases (IBD: Crohn's disease [CD], and Ulcerative Colitis [UC]). Geographic markers such as latitude/sunshine and more recently lactase population distributions are found to be correlated with IBD. As a result of clinical and pathogenic similarities between the 2 conditions, some authorities questioned whether a connection exists between them. We compare IBS directly with IBD, and indirectly with geographic markers associated with IBD, in order to evaluate possible evolutionary links between IBS and IBD...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29285971/leveraging-multiple-populations-across-time-helps-define-accurate-models-of-human-evolution-a-reanalysis-of-the-lactase-persistence-adaptation
#3
Chenling Xu Antelope, Davide Marnetto, Fergal Casey, Emilia Huerta-Sanchez
Access to a geographically diverse set of modern human samples from the present time and from ancient remains, combined with archaic hominin samples, provides an unprecedented level of resolution to study both human history and adaptation. The amount and quality of ancient human data continue to improve and enable tracking the trajectory of genetic variation over time. These data have the potential to help us redefine or generate new hypotheses of how human evolution occurred and to revise previous conjectures...
January 2017: Human Biology
https://www.readbyqxmd.com/read/29285123/an-in-vitro-endothelial-cell-protective-effect-of-secretory-leukocyte-protease-inhibitor-against-simulated-ischaemia-reperfusion-injury
#4
Nitirut Nernpermpisooth, Eakkapote Prompunt, Sarawut Kumphune
Endothelial dysfunction is an essential deleterious modulator of ischaemia/reperfusion (I/R) injury. Secretory leukocyte protease inhibitor (SLPI) has demonstrated myocardial protection in cardiac transplantation; however, the effect of SLPI in endothelial I/R injury remains unexplored. In the present study, the effect of recombinant human SLPI (rhSLPI) treatment against endothelial cells (ECs) subjected to simulated I/R injury and the effect of treatment at different time points were determined. Human umbilical vein ECs (HUVECs) were subjected to normoxic or simulated I/R (sI/R) conditions, and rhSLPI at concentrations of 1, 10, 100 and 1,000 ng/ml was added to the cells prior to ischaemia, during ischaemia or at the onset of reperfusion...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29242764/diversity-of-intestinal-bacterial-lactase-gene-in-antibiotics-induced-diarrhea-mice-treated-with-chinese-herbs-compound-qi-wei-bai-zhu-san
#5
Lu He, Yawei Liu, Yanfang Guo, Kejia Shen, Huaying Hui, Zhoujin Tan
The current investigation is trying to study the impact of the mixture of Chinese herbs Qi Wei Bai Zhu San (QWBZS) on bacterial lactase gene from antibiotics-induced diarrhea (AAD) mice, as the good curative effect of QWBZS on diarrhea. Mice (6 mice per group) were randomly selected as control, model and treatment groups. To induce diarrhea, mice in both model and treatment groups were intragastrically injected with mixture of gentamycin sulfate and cefradine (23.33 mL kg-1 day-1) twice per day and continuously for totally 5 days...
January 2018: 3 Biotech
https://www.readbyqxmd.com/read/29204058/diversity-of-bacterial-lactase-genes-in-intestinal-contents-of-mice-with-antibiotics-induced-diarrhea
#6
Cheng-Xing Long, Lu He, Yan-Fang Guo, Ya-Wei Liu, Nen-Qun Xiao, Zhou-Jin Tan
AIM: To investigate the diversity of bacterial lactase genes in the intestinal contents of mice with antibiotics-induced diarrhea. METHODS: Following 2 d of adaptive feeding, 12 specific pathogen-free Kunming mice were randomly divided into the control group and model group. The mouse model of antibiotics-induced diarrhea was established by gastric perfusion with mixed antibiotics (23.33 mL·kg-1·d-1) composed of gentamicin sulfate and cephradine capsules administered for 5 days, and the control group was treated with an equal amount of sterile water...
November 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29198188/blood-lactose-after-dairy-product-intake-in-healthy-men
#7
RANDOMIZED CONTROLLED TRIAL
Grégory Pimentel, Kathryn J Burton, Marta Rosikiewicz, Carola Freiburghaus, Ueli von Ah, Linda H Münger, François P Pralong, Nathalie Vionnet, Gilbert Greub, René Badertscher, Guy Vergères
The absence of a dedicated transport for disaccharides in the intestine implicates that the metabolic use of dietary lactose relies on its prior hydrolysis at the intestinal brush border. Consequently, lactose in blood or urine has mostly been associated with specific cases in which the gastrointestinal barrier is damaged. On the other hand, lactose appears in the blood of lactating women and has been detected in the blood and urine of healthy men, indicating that the presence of lactose in the circulation of healthy subjects is not incompatible with normal physiology...
December 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/29187356/dairy-consumption-and-body-mass-index-among-adults-mendelian-randomization-analysis-of-184802-individuals-from-25-studies
#8
(no author information available yet)
BACKGROUND: Associations between dairy intake and body mass index (BMI) have been inconsistently observed in epidemiological studies, and the causal relationship remains ill defined. METHODS: We performed Mendelian randomization (MR) analysis using an established dairy intake-associated genetic polymorphism located upstream of the lactase gene (LCT-13910 C/T, rs4988235) as an instrumental variable (IV). Linear regression models were fitted to analyze associations between (a) dairy intake and BMI, (b) rs4988235 and dairy intake, and (c) rs4988235 and BMI in each study...
November 29, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29187354/lactase-persistence-and-body-mass-index-the-contribution-of-mendelian-randomization
#9
EDITORIAL
Fernando Pires Hartwig, George Davey Smith
No abstract text is available yet for this article.
November 29, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29159163/association-of-lct-13910-c-t-polymorphism-and-colorectal-cancer
#10
Genco Gençdal, Esin Salman, Ömer Özütemiz, Ulus S Akarca
Purpose: The activity of epithelial lactase (LCT) is associated with a polymorphism 13910 bp upstream in the lactase encoding gene. Because the association between the LCT-13910 polymorphism and the risk for colorectal cancer is not clear, we investigated the role of the LCT-13910 polymorphism as a potential risk factor for colorectal cancer and colorectal polyps in the Turkish population. Methods: One hundred sixty-six subjects (74 with polyps, 44 with colorectal cancer, 48 controls), who had undergone a total colonoscopy between January 2012 and November 2012 in our endoscopy unit were genotyped for the LCT-13910 polymorphism by using the polymerase chain reaction and minisequencing...
October 2017: Annals of Coloproctology
https://www.readbyqxmd.com/read/29153882/identification-of-probiotic-effector-molecules-present-state-and-future-perspectives
#11
REVIEW
Sarah Lebeer, Peter A Bron, Maria L Marco, Jan-Peter Van Pijkeren, Mary O'Connell Motherway, Colin Hill, Bruno Pot, Stefan Roos, Todd Klaenhammer
Comprehension of underlying mechanisms of probiotic action will support rationale selection of probiotic strains and targeted clinical study design with a higher likelihood of success. This will consequently contribute to better substantiation of health claims. Here, we aim to provide a perspective from a microbiology point of view that such comprehensive understanding is not straightforward. We show examples of well-documented probiotic effector molecules in Lactobacillus and Bifidobacterium strains, including surface-located molecules such as specific pili, S-layer proteins, exopolysaccharides, muropeptides, as well as more widely produced metabolites such as tryptophan-related and histamine-related metabolites, CpG-rich DNA, and various enzymes such as lactase and bile salt hydrolases...
November 15, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/29148861/a-new-approach-for-determining-short-term-objective-prognostic-predictive-methods-for-terminal-cancer-patients-based-on-the-change-point-of-laboratory-test-values
#12
Kazuyuki Niki, Yoshiaki Okamoto, Yoshitaka Tabata, Mamiko Tsugane, Taizo Murata, Masao Mizuki, Yasushi Matsumura, Tatsuya Takagi, Etsuko Uejima
BACKGROUND: In terminal phase cancer, predicting a prognosis precisely plays an important role for patients and their families to live meaningful lives. However, there are no established short-term, objective prognostic predictive methods. OBJECTIVE: To develop simple, short-term, objective prognostic predictive methods through detecting a change point for laboratory test values. DESIGN: A retrospective chart review. SETTING/SUBJECTS: Subjects were cancer patients aged ≥16 years and discharged dead from Osaka University Hospital in 2008...
November 17, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/29147660/analytical-validation-of-a-new-enzymatic-and-automatable-method-for-d-xylose-measurement-in-human-urine-samples
#13
Israel Sánchez-Moreno, Carmen Monsalve-Hernando, Ana Godino, Luis Illa, María Jesús Gaspar, Guillermo Manuel Muñoz, Ana Díaz, José Luis Martín, Eduardo García-Junceda, Alfonso Fernández-Mayoralas, Carmen Hermida
Hypolactasia, or intestinal lactase deficiency, affects more than half of the world population. Currently, xylose quantification in urine after gaxilose oral administration for the noninvasive diagnosis of hypolactasia is performed with the hand-operated nonautomatable phloroglucinol reaction. This work demonstrates that a new enzymatic xylose quantification method, based on the activity of xylose dehydrogenase from Caulobacter crescentus, represents an excellent alternative to the manual phloroglucinol reaction...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29145157/bmscs-derived-mir-223-containing-exosomes-contribute-to-liver-protection-in-experimental-autoimmune-hepatitis
#14
Lu Chen, Feng-Bin Lu, Da-Zhi Chen, Jin-Lu Wu, En-de Hu, Lan-Man Xu, Ming-Hua Zheng, Hui Li, Yu Huang, Xiao-Ya Jin, Yue-Wen Gong, Zhuo Lin, Xiao-Dong Wang, Yong-Ping Chen
Autoimmune hepatitis is a chronic inflammatory disease in the liver with potential to the development of liver fibrosis. Recent evidences suggest that bone marrow derived mesenchymal stem cells (BMSCs) may exert its therapeutic activity through exosomes. Moreover, miR-223 is highly expressed in BMSCs and plays an important role in autoimmune diseases. Therefore, in this study, hepatoprotective role of BMSCs and miR-223 was investigated in both mice and hepatocytes. Liver antigen S100 was used to establish autoimmune hepatitis model in mice while LPS and ATP were used to establish cell injury model in hepatocyte...
November 13, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29129317/the-genetic-legacy-of-the-indian-ocean-slave-trade-recent-admixture-and-post-admixture-selection-in-the-makranis-of-pakistan
#15
Romuald Laso-Jadart, Christine Harmant, Hélène Quach, Nora Zidane, Chris Tyler-Smith, Qasim Mehdi, Qasim Ayub, Lluis Quintana-Murci, Etienne Patin
From the eighth century onward, the Indian Ocean was the scene of extensive trade of sub-Saharan African slaves via sea routes controlled by Muslim Arab and Swahili traders. Several populations in present-day Pakistan and India are thought to be the descendants of such slaves, yet their history of admixture and natural selection remains largely undefined. Here, we studied the genome-wide diversity of the African-descent Makranis, who reside on the Arabian Sea coast of Pakistan, as well that of four neighboring Pakistani populations, to investigate the genetic legacy, population dynamics, and tempo of the Indian Ocean slave trade...
November 1, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29113024/neuroprotective-effects-of-butanol-fraction-of-cordyceps-cicadae-on-glutamate-induced-damage-in-pc12-cells-involving-oxidative-toxicity
#16
Dan Wang, Jibiao Wang, Dujun Wang, Xiaofeng Yu, Opeyemi Joshua Olatunji, Zhen Ouyang, Yuan Wei
The current study was aimed at investigating the neuroprotective effects of the butanol fraction from C. cicadae (CBU ), which was responsible for the anti-aging effect of this medicine. Glutamate-induced PC12 cells were used as a model to determine the neuroprotective effect against oxidative cell death. Cell viability, cytotoxicity, flow cytometry, mitochondrial transmembrane potential (MMP), reactive oxygen species (ROS), glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) levels were analyzed to assess neuronal cell survival or death...
November 7, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29111067/gums-induced-microstructure-stability-in-ca-ii-alginate-beads-containing-lactase-analyzed-by-saxs
#17
Maria Victoria Traffano-Schiffo, Marta Castro-Giraldez, Pedro J Fito, Mercedes Perullini, Patricio R Santagapita
Previous works show that the addition of trehalose and gums in β-galactosidase (lactase) Ca(II)-alginate encapsulation systems improved its intrinsic stability against freezing and dehydration processes in the pristine state. However, there is no available information on the evolution in microstructure due to the constraints imposed by the operational conditions. The aim of this research is to study the time course of microstructural changes of Ca(II)-alginate matrices driven by the presence of trehalose, arabic and guar gums as excipients and to discuss how these changes influence the diffusional transport (assessed by LF-NMR) and the enzymatic activity of the encapsulated lactase...
January 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29071499/lactase-persistence-milk-intake-and-mortality-in-the-danish-general-population-a-mendelian-randomization-study
#18
Helle Kirstine Mørup Bergholdt, Børge Grønne Nordestgaard, Anette Varbo, Christina Ellervik
Meta-analyses have suggested no association between milk intake and mortality. Since only few studies have been conducted, we investigated the association between the lactase persistent genetic variant LCT-13910 C/T (rs4988235), a proxy for long-term low and high intake of milk, and mortality. We used two Danish population-based studies with self-reported intake of milk and genotyping for LCT-13910 C/T. We obtained information on all-cause and cause-specific mortality (cardiovascular and cancer) from the national Danish registries...
October 25, 2017: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29070042/effects-of-cow-s-milk-beta-casein-variants-on-symptoms-of-milk-intolerance-in-chinese-adults-a-multicentre-randomised-controlled-study
#19
Mei He, Jianqin Sun, Zhuo Qin Jiang, Yue Xin Yang
BACKGROUND: A major protein component of cow's milk is β-casein. The most frequent variants in dairy herds are A1 and A2. Recent studies showed that milk containing A1 β-casein promoted intestinal inflammation and exacerbated gastrointestinal symptoms. However, the acute gastrointestinal effects of A1 β-casein have not been investigated. This study compared the gastrointestinal effects of milk containing A1 and A2 β-casein versus A2 β-casein alone in Chinese adults with self-reported lactose intolerance...
October 25, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/29066978/molecular-ecological-basis-of-grasshopper-oedaleus-asiaticus-phenotypic-plasticity-under-environmental-selection
#20
Xinghu Qin, Kun Hao, Jingchuan Ma, Xunbing Huang, Xiongbing Tu, Md Panna Ali, Barry R Pittendrigh, Guangchun Cao, Guangjun Wang, Xiangqun Nong, Douglas W Whitman, Zehua Zhang
While ecological adaptation in insects can be reflected by plasticity of phenotype, determining the causes and molecular mechanisms for phenotypic plasticity (PP) remains a crucial and still difficult question in ecology, especially where control of insect pests is involved. Oedaleus asiaticus is one of the most dominant pests in the Inner Mongolia steppe and represents an excellent system to study phenotypic plasticity. To better understand ecological factors affecting grasshopper phenotypic plasticity and its molecular control, we conducted a full transcriptional screening of O...
2017: Frontiers in Physiology
keyword
keyword
18483
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"