keyword
MENU ▼
Read by QxMD icon Read
search

Digestion

keyword
https://www.readbyqxmd.com/read/29783194/quantitative-investigation-of-hydraulic-mixing-energy-input-during-batch-mode-anaerobic-digestion-and-its-impact-on-performance
#1
James McLeod, Z Othman, Rajarathinam Parthasarathy
The relationship between mixing energy input and biogas production was investigated by anaerobically digesting sewage sludge in lab scale, hydraulically mixed, batch mode digesters at six different specific energy inputs. The goal was to identify how mixing energy influenced digestion performance at quantitative levels to help explain the varying results in other published works. The results showed that digester homogeneity was largely uninfluenced by energy input, whereas cumulative biogas production and solids destruction were...
May 18, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29783131/effect-of-trace-element-addition-and-increasing-organic-loading-rates-on-the-anaerobic-digestion-of-cattle-slaughterhouse-wastewater
#2
Thomas Schmidt, Bernadette K McCabe, Peter W Harris, Seonmi Lee
In this study, anaerobic digestion of slaughterhouse wastewater with the addition of trace elements was monitored for biogas quantity, quality and process stability using CSTR digesters operated at mesophilic temperature. The determination of trace element concentrations was shown to be deficient in Fe, Ni, Co, Mn and Mo compared to recommendations given in the literature. Addition of these trace elements resulted in enhanced degradation efficiency, higher biogas production and improved process stability. Higher organic loading rates and lower hydraulic retention times were achieved in comparison to the control digesters...
May 18, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29783130/an-explanation-of-the-methanogenic-pathway-for-methane-production-in-anaerobic-digestion-of-nitrogen-rich-materials-under-mesophilic-and-thermophilic-conditions
#3
Dong-Min Yin, Maria Westerholm, Wei Qiao, Shao-Jie Bi, Simon M Wandera, Run Fan, Meng-Meng Jiang, Ren-Jie Dong
The impact of temperature on the anaerobic digestion of chicken manure was investigated by studying the process performance and pathway for continuously-fed digesters under mesophilic and thermophilic conditions. The mesophilic digester obtained a 15% higher methane yield compared with the thermophilic digester. Mesophilic and thermophilic digester had free ammonia of 31 and 145 mg/L, respectively. The stable carbon isotope analysis indicated that 41% and 50% of acetate was converted to methane through the syntrophic acetate oxidation and hydrogenotrophic methanogenesis (SAO-HM) pathway under mesophilic and thermophilic conditions, respectively...
May 18, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29783070/cdh17-alters-mmp-2-expression-via-canonical-nf-%C3%AE%C2%BAb-signalling-in-human-gastric-cancer
#4
Xiao-Jie Jiang, Jing Lin, Qing-He Cai, Jian-Feng Zhao, Hui-Jiao Zhang
Gastric cancer (GC), one of the most common cancers of the digestive system, results in high morbidity and mortality, but the molecular mechanisms underlying GC remain largely unknown. Cadherin-17 (CDH17) is a nonclassical member of the cadherin (CDH) superfamily of calcium-dependent proteins. Despite recent advances in the understanding of CDH17 biology, the mechanism of CDH17 in GC proliferation, migration, and invasion has not been extensively studied. In the present study, we observed that CDH17 expression was increased in GC tissues compared with para-carcinoma tissues and was correlated with lymph node metastasis and the AJCC stage...
May 18, 2018: Gene
https://www.readbyqxmd.com/read/29783049/thermopuncture-for-the-diagnosis-monitoring-and-treatment-of-patients-with-type-2-diabetes
#5
Valery Muzhikov, Elena Vershinina, Ruslan Muzhikov, Kirill Nikitin
BACKGROUND: Type 2 diabetes (T2D) is a socially significant disease that affects millions of patients. There were an estimated 366 million people with this disease in 2011, and, according to the forecast, approximately 552 million will be affected by this disease in 2030. It is well known that the primary diagnosis and treatment of a patient with this disease are quite expensive. What should be done to make it possible for a patient to monitor his own state and provide treatment in his own home using telemedicine? To solve this problem, an alternative concept for the diagnosis, monitoring, and treatment at the basis of traditional Chinese medicine (TCM) combined with mathematical methods of data processing has been used...
May 18, 2018: Journal of Acupuncture and Meridian Studies
https://www.readbyqxmd.com/read/29783023/extended-spectrum-beta-lactamase-producing-enterobacteriaceae-infections-in-haematopoietic-stem-cell-transplant-recipients-epidemiology-and-molecular-characterization
#6
Molka Kharrat, Yosra Chebbi, Farah Ben Tanfous, Amel Lakhal, Saloua Ladeb, Tarek Ben Othmen, Wafa Achour
BACKGROUND: Extended spectrum β-lactamase producing Enterobacteriaceae (ESBL-E) are feared because they generate therapeutic difficulties and have high potential for dissemination. The purpose of our study was to investigate the epidemiology of these infections in hematopoietic stem cell transplant (HSCT) recipients and to determine the genes encoding ESBL. MATERIAL/METHODS: Our retrospective study concerned adult patients hospitalized at the National Bone Marrow Transplant Center and infected with ESBL-E post HSCT between january 2006 and december 2016...
May 18, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29782931/optimal-gut-size-of-small-birds-and-its-dependence-on-environmental-and-physiological-parameters
#7
Adnane Ez-Zizi, John M McNamara, Gaurav Malhotra, Alasdair I Houston
Most optimal foraging models assume that the foraging behaviour of small birds depends on a single state variable, their energy reserves in the form of stored fat. Here, we include a second state variable-the contents of the bird's gut-to investigate how a bird should optimise its gut size to minimise its long-term mortality, depending on the availability of food, the size of meal and the bird's digestive constraints. Our results show that (1) the current level of fat is never less important than gut contents in determining the bird's survival; (2) there exists a unique optimal gut size, which is determined by a trade-off between the energetic gains and costs of maintaining a large digestive system; (3) the optimal gut size increases as the bird's digestive cycle becomes slower, allowing the bird to store undigested food; (4) the critical environmental factor for determining the optimal gut size is the mass of food found in a successful foraging effort ("meal size")...
May 18, 2018: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29782830/toxoplasma-gondii-infections-in-chickens-performance-of-various-antibody-detection-techniques-in-serum-and-meat-juice-relative-to-bioassay-and-dna-detection-methods
#8
G Schares, M Koethe, B Bangoura, A-C Geuthner, F Randau, M Ludewig, P Maksimov, M Sens, A Bärwald, F J Conraths, I Villena, D Aubert, M Opsteegh, J Van der Giessen
Chickens, especially if free-range, are frequently exposed to Toxoplasma gondii, and may represent an important reservoir for T. gondii. Poultry products may pose a risk to humans, when consumed undercooked. In addition, chickens are regarded as sensitive indicators for environmental contamination with T. gondii oocysts and have been used as sentinels. The aim of the present study was to determine the suitability of commonly used antibody detection methods, i.e. the modified agglutination test (MAT), IFAT and ELISA to detect T...
May 18, 2018: International Journal for Parasitology
https://www.readbyqxmd.com/read/29782825/characterization-of-an-n-terminal-mutant-of-%C3%AE-a-crystallin-%C3%AE-a-r21q-associated-with-congenital-cataract
#9
Ashutosh S Phadte, Puttur Santhoshkumar, K Krishna Sharma
Several mutations associated with congenital cataracts in human beings target conserved arginine residues in αA-crystallin. The N-terminal region of αA-crystallin is a "mutational hotspot," with multiple cataract-related mutations reported in this region. Two mutations at arginine 21 in the N-terminal domain of αA-crystallin - αA-R21L and αA-R21W have been associated with congenital cataract. A third mutant of R21, αA-R21Q, was recently identified to be associated with congenital cataract in a South Australian family...
May 18, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29782790/magnetite-triggering-enhanced-diet-a-scavenger-for-the-blockage-of-electron-transfer-in-anaerobic-digestion-of-high-solids-sewage-sludge
#10
Tao Wang, Dong Zhang, Lingling Dai, Bin Dong, Xiaohu Dai
At present, high-solids anaerobic digestion of sewage sludge has drawn great attention due to the superiority of its small land area footprint and low energy consumption. However, a high organic loading rate may cause acids accumulation and ammonia inhibition, thus leading to an inhibited pseudo-steady state in which electron transfer through interspecies hydrogen transfer (IHT) between acetogens and methanogens is blocked. In this study, adding 50 mg/g TS (total solid) magnetite clearly reduced the accumulation of short-chain fatty acids and accelerated methane production by 26...
May 21, 2018: Environmental Science & Technology
https://www.readbyqxmd.com/read/29782364/the-utility-of-diagnostic-laparoscopy-in-patients-being-evaluated-for-cytoreductive-surgery-and-hyperthermic-peritoneal-chemotherapy
#11
Raquel Bravo, Mehnareh D Jafari, Alessio Pigazzi
BACKGROUND: To assess the role of diagnostic laparoscopy (DL) to evaluate candidates for optimal cytoreduction surgery of peritoneal carcinomatosis (PC) combined with hyperthermic intraperitoneal chemotherapy in a consecutive series. METHODS: The characteristics of 31 patients undergoing DL between August 2012 and October 2016 for a diagnosis of PC secondary to digestive neoplasms were retrospectively reviewed. RESULTS: Laparoscopic evaluation was successful and well-tolerated in 100% patients (N=31)...
May 18, 2018: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29782305/tatami-mats-a-source-of-pitted-keratolysis-in-a-martial-arts-athlete
#12
Anamaria Balić, Zrinka Bukvić Mokos, Branka Marinović, Daniela Ledić Drvar
Dear Editor, Pitted keratolysis (PK), also known as keratosis plantaris sulcatum, is a non-inflammatory, bacterial, superficial cutaneous infection, characterized by many discrete superficial crateriform ''pits'' and erosions in the thickly keratinized skin of the weight-bearing regions of the soles of the feet (1). The disease often goes unnoticed by the patient, but when it is noticed it is because of the unbearable malodor and hyperhidrosis of the feet, which are socially unacceptable and cause great anxiety to many of the patients...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782007/intraportal-transplantation-of-pancreatic-islets-in-mouse-model
#13
Rahul Khatri, Birte Hussmann, Divya Rawat, Ali Osman Gürol, Thomas Linn
Pancreatic islet transplantation to reduce hyperglycemia is highly successful in rodents with chemically-induced diabetes. The most common transplantation site in experimental islet transplantation is the kidney capsule. However, as less is known about the interaction of pancreatic islets with blood constituents, it also makes sense to utilize the portal vein approach in experimental islet transplantation. This protocol demonstrates an intraportal islet transplantation technique in NMRI nude mice. Streptozotocin (180 mg/kg) is injected intraperitoneally to induce hyperglycemia in recipient mice...
May 5, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781989/bile-salt-induced-biofilm-formation-in-enteric-pathogens-techniques-for-identification-and-quantification
#14
Kourtney P Nickerson, Christina S Faherty
Biofilm formation is a dynamic, multistage process that occurs in bacteria under harsh environmental conditions or times of stress. For enteric pathogens, a significant stress response is induced during gastrointestinal transit and upon bile exposure, a normal component of human digestion. To overcome the bactericidal effects of bile, many enteric pathogens form a biofilm hypothesized to permit survival when transiting through the small intestine. Here we present methodologies to define biofilm formation through solid-phase adherence assays as well as extracellular polymeric substance (EPS) matrix detection and visualization...
May 6, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781775/ambient-temperature-co-digestion-of-low-solids-municipal-and-industrial-waste-mixtures-insights-from-molecular-analyses
#15
Ramin Yazdani, Kyuhwan Shim, Zhi Chen, Christy Cheung, Matthew D Summers, Douglas W Williams, Reinhard Seiser, Susan K De Long
No abstract text is available yet for this article.
May 21, 2018: Journal of the Air & Waste Management Association
https://www.readbyqxmd.com/read/29781709/bidirectional-interactions-between-dietary-curcumin-and-gut-microbiota
#16
Liang Shen, Hong-Fang Ji
Curcumin is a polyphenolic compound with a long history of use as an herbal remedy, dietary spice and food-coloring agent. Despite curcumin possesses a wide range of biological and pharmacological activities, it exhibits extremely poor bioavailability, which makes its pharmacology intriguing and also hinders its clinical application. In recent years, there is ample evidence supporting the associations between the alteration of gut microbiota and many diseases. Interestingly, after oral administration, curcumin shows its preferential distribution and accumulation in the intestine...
May 21, 2018: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29781033/microarray-analysis-of-circular-rna-expression-profiles-associated-with-gemcitabine-resistance-in-pancreatic-cancer-cells
#17
Chao Xu, Yue Yu, Fei Ding
Pancreatic cancer (PC) is one of the most malignant tumors of the digestive system due to its rapid progression, metastasis and resistance to chemotherapy. Gemcitabine (GEM) chemotherapy is the first‑choice treatment for advanced PC. However, the effect of GEM‑based chemotherapy on PC is limited due to the development of chemoresistance, and the molecular mechanisms underlying this resistance have yet to be investigated. Circular RNAs (circRNAs), which can function as microRNA sponges, have been found to be involved in the development of several types of cancer...
May 17, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29780666/chitin-distribution-in-the-oithona-digestive-and-reproductive-systems-revealed-by-fluorescence-microscopy
#18
Kevin Sugier, Benoit Vacherie, Astrid Cornils, Patrick Wincker, Jean-Louis Jamet, Mohammed-Amin Madoui
Among copepods, which are the most abundant animals on Earth, the genus Oithona is described as one of the most numerous and plays a major role in the marine food chain and biogeochemical cycles, particularly through the excretion of chitin-coated fecal pellets. Despite the morphology of several Oithona species is well known, knowledge of its internal anatomy and chitin distribution is still limited. To answer this problem, Oithona nana and O. similis individuals were stained by Wheat Germ Agglutinin-Fluorescein IsoThioCyanate (WGA-FITC) and DiAmidino-2-PhenylIndole (DAPI) for fluorescence microscopy observations...
2018: PeerJ
https://www.readbyqxmd.com/read/29780655/phytobezoar-a-brief-report-with-surgical-and-radiological-correlation
#19
Sameer A Hirji, Faith C Robertson, Grace F Chao, Bharti Khurana, Jonathan D Gates
Gastrointestinal bezoars, collections of incompletely digested material within the alimentary tract, can present as a diagnostic challenge and should be considered in the differential diagnosis and management of small bowel obstruction, ischemic bowel, or bowel perforation. We present a case of a 37-year-old man with a distant history of laparotomy for superior mesenteric artery thrombosis requiring partial small bowel resection of the jejunum who presented with worsening abdominal pain, nausea, vomiting, and hematemesis...
2018: Case Reports in Surgery
https://www.readbyqxmd.com/read/29779708/imaging-mass-spectrometry-reveals-direct-albumin-fragmentation-within-the-diabetic-kidney
#20
Kerri J Grove, Nichole M Lareau, Paul A Voziyan, Fenghua Zeng, Raymond C Harris, Billy G Hudson, Richard M Caprioli
Albumin degradation in the renal tubules is impaired in diabetic nephropathy such that levels of the resulting albumin fragments increase with the degree of renal injury. However, the mechanism of albumin degradation is unknown. In particular, fragmentation of the endogenous native albumin has not been demonstrated in the kidney and the enzymes that may contribute to fragmentation have not been identified. To explore this we utilized matrix-assisted laser desorption/ionization imaging mass spectrometry for molecular profiling of specific renal regions without disturbing distinct tissue morphology...
May 17, 2018: Kidney International
keyword
keyword
5093
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"