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https://www.readbyqxmd.com/read/28750356/combined-calcitriol-and-menadione-reduces-experimental-murine-triple-negative-breast-tumor
#1
Luciana Bohl, Solange Guizzardi, Valeria Rodríguez, Lucila Hinrichsen, Viviana Rozados, David Cremonezzi, Nori Tolosa de Talamoni, Gabriela Picotto
BACKGROUND: Calcitriol (D) or 1,25(OH)2D3 inhibits the growth of several tumor cells including breast cancer cells, by activating cell death pathways. Menadione (MEN), a glutathione-depleting compound, may be used to potentiate the antiproliferative actions of D on cancer cells. We have previously shown in vitro that MEN improved D-induced growth arrest on breast cancer cell lines, inducing oxidative stress and DNA damage via ROS generation. Treatment with MEN+D resulted more effective than D or MEN alone...
July 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28748911/a-novel-and-quick-pcr-based-method-to-genotype-mice-with-a-leptin-receptor-mutation-db-db-mice
#2
Bao-Yu Peng, Qiang Wang, Yan-Hong Luo, Jian-Feng He, Tao Tan, Hua Zhu
db/db mice is one of most widely used animal models in studying the cellular and molecular mechanisms of metabolic disorders, such as diabetes, hyperlipidemia, and obesity. The mice carry spontaneous point mutations in the gene encoding the leptin receptor, leading to leptin receptor inactivation. Since homozygous db/db mice are sterile, the maintenance of db/db mice requires breeding between heterozygous pairs, which makes genotyping essential for the identification of offspring. The aim of this study was to develop a quick and highly repeatable method for genotyping db/db mice, which comprised only three simple steps: Genomic DNA is extracted from either tail tips or ear notches via alkaline lysis (∼20 min); Samples are then subjected to tetra-primer amplification refractory mutation system-polymerase chain reaction (ARMS-PCR) using specially designed and validated primer sets (∼1...
July 27, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28748436/organophosphorus-pesticide-mixture-removal-from-environmental-matrices-by-a-soil-streptomyces-mixed-culture
#3
Gabriela Briceño, Karen Vergara, Heidi Schalchli, Graciela Palma, Gonzalo Tortella, María Soledad Fuentes, María Cristina Diez
The current study aimed to evaluate the removal of a pesticide mixture composed of the insecticides chlorpyrifos (CP) and diazinon (DZ) from liquid medium, soil and a biobed biomixture by a Streptomyces mixed culture. Liquid medium contaminated with 100 mg L(-1) CP plus DZ was inoculated with the Streptomyces mixed culture. Results indicated that microorganisms increased their biomass and that the inoculum was viable. The inoculum was able to remove the pesticide mixture with a removal rate of 0.036 and 0...
July 26, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28748257/use-of-plant-preservative-mixture%C3%A2-for-establishing-in-vitro-cultures-from-field-plants-experience-with-papaya-reveals-several-ppm%C3%A2-tolerant-endophytic-bacteria
#4
Pious Thomas, Mukta Agrawal, C B Bharathkumar
Prevalence of diverse PPM™-tolerant endophytic bacteria in papaya, the broad-spectrum microbicide specified for use in plant tissue cultures, capable of surviving covertly in MS-based medium, with implications in contamination management. Plant Preservative Mixture™ was employed for establishing papaya (Carica papaya) tissue cultures from field explants. Comparing three recommended practices for controlling endogenous microbial contaminants, axillary shoot tips (1.0-1.5 cm) from cv. Arka Prabhath were treated with PPM™ 5% for 4 h (T1), 50% for 10 min (T2) or 100% for 10 min (T3) and cultured in MS-based papaya establishment medium (PEM)...
July 26, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28748050/assessment-of-facultative-anaerobes-from-the-root-canals-of-deciduous-molars-an-in-vivo-study
#5
Manisha Chandwani, Shweta Chandak
Background. The current research aimed to assess the prevalence of facultative anaerobes isolated from the root canals of deciduous molars. Methods. The present research enrolled 60 children in the 6‒9-year age group based on clinical and radiographic findings. Under aseptic conditions, access cavities were prepared followed by collection of samples from infected root canals with the help of sterile paper points. The samples thus obtained were subjected for microbial assay. Results. It was found that Enterococcus faecalis was isolated in 30% of cases, Escherichia coli in 28...
2017: Journal of Dental Research, Dental Clinics, Dental Prospects
https://www.readbyqxmd.com/read/28748018/-abdominal-mass-revealing-xanthogranulomatous-pyelonephritis-in-an-infant
#6
Anass Ayad, Badr Ettouhami, Benouachane Thami, Abdelali Bentahila
Xanthogranulomatous pyelonephritis (XGP) is a chronic pyelonephritis observed in children and exceptionally in infants. Symptomatology is vague and may delay diagnosis and patient's management. Treatment is based on medical therapy but most often on surgery with poor renal prognosis. We report the case of a 15-month old infant with isolated mass in the left flank. He had no fever or alteration of general state and urine cultures were sterile. Radiological evaluation (renal ultrasound, uroscan and renal scintigraphy) highlighted left non-functioning kidney with "hydropyonephrosis" evoking the diagnosis of XGP...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28747483/multi-functional-roles-of-a-soldier-specific-volatile-as-a-worker-arrestant-primer-pheromone-and-an-antimicrobial-agent-in-a-termite
#7
Yuki Mitaka, Naoki Mori, Kenji Matsuura
Division of labour in eusocial insects is characterized by efficient communication systems based on pheromones. Among such insects, termites have evolved specialized sterile defenders, called soldiers. Because they are incapable of feeding themselves, it has been suggested that soldiers are sustained by workers and emit the pheromone arresting workers. However, such a soldier pheromone has not been identified in any termite species, and the details of the soldier-worker interaction remain to be explored. Here, we identified a soldier-specific volatile sesquiterpene as a worker arrestant, which also acts as a primer pheromone regulating soldier differentiation and fungistatic agent in a termite Reticulitermes speratus Chemical analyses revealed that (-)-β-elemene is the major component of soldier extract, and its authentic standard exhibited arrestant activity to workers and inhibited the differentiation from workers to soldiers...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28746994/comparison-between-several-reactors-with-trametes-versicolor-immobilized-on-lignocellulosic-support-for-the-continuous-treatments-of-hospital-wastewater
#8
J Torán, P Blánquez, G Caminal
Hospital wastewater is a major source of pharmaceutically active compounds (PhACs), which are not all removed in conventional wastewater treatment plants. White rot fungi can degrade PhACs, but their application has been limited to non-sterile conditions due to the competition with other microorganisms for growth. In this study, immobilization of Trametes versicolor on different lignocellulosic supports was studied as strategy to ensure fungal survival under continuous treatment conditions. A fluidized bed reactor and a trickling packed-bed reactor with T...
July 13, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28745705/-the-outcomes-of-lower-extremities-burn-wounds-management-by-using-of-controlled-moist-environment
#9
N N Karyakin, I A Klemenova, A S Luzan
AIM: To the outcomes of lower extremities burn wounds management by using of controlled moist environment. MATERIAL AND METHODS: Burn wounds management by using of controlled moist environment in 23 patients is presented in the article. Physiological moist conditions on the surface of wounds were created with isotonic sodium chloride solution and sterile polyethylene diaphanous containers. Сontrol group included 12 patients who were treated with hydrocolloid patch...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28745283/fabrication-of-biopolymer-based-nanocomposite-wound-dressing-evaluation-of-wound-healing-properties-and-wound-microbial-load
#10
Ali Es-Haghi, Mohammad Mashreghi, Mahere Rezazade Bazaz, Masoud Homayouni-Tabrizi, Majid Darroudi
The aim of this study is to introduce natural-based polymers, chitosan and starch, to design a remedial nanocomposite, comprising of cerium oxide nanoparticles and silver nanoparticles, to investigate their effects in accelerating wound healing and in wound microbial load. Cerium oxide nanoparticles synthesized in starch solution added to the colloidal dispersion of synthesized silver nanoparticles in chitosan to make a three-component nanomaterial. Mice were anaesthetized and two parallel full-thickness round wounds were excised under aseptic conditions with the help of sterile dermal biopsy punch...
August 2017: IET Nanobiotechnology
https://www.readbyqxmd.com/read/28744076/mr-fistulography-with-percutaneous-instillation-of-aqueous-jelly-a-cost-effective-technique-innovation
#11
Rohit Aggarwal, Brijesh K Soni, Joish U Kumar, Raju A George, Rajeev Sivasankar
BACKGROUND: Perianal fistula is a commonly encountered condition in routine surgical practice. Accurate presurgical mapping of these tracts is vital to prevent recurrence. We have assessed the effectiveness of percutaneous instillation of aqueous jelly prior to magnetic resonance (MR) fistulography. AIMS AND OBJECTIVES: To study the role of percutaneous instillation of aqueous jelly in fistulous tracts prior to MR fistulography. MATERIALS AND METHODS: All patients with active discharge, referred for MR fistulography between January 2014 and April 2016, were included in this study...
April 2017: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/28743739/ip6k1-is-essential-for-chromatoid-body-formation-and-temporal-regulation-of-tnp2-and-prm2-expression-in-mouse-spermatids
#12
Aushaq Bashir Malla, Rashna Bhandari
Inositol hexakisphosphate kinases (IP6Ks) are enzymes that synthesise the inositol pyrophosphate 5-IP7, which is known to regulate several physiological processes. Deletion of IP6K1, but not other IP6K isoforms, causes sterility in male mice. Here, we present a detailed investigation of the specific function of IP6K1 in spermatogenesis. Within the mouse testis, IP6K1 is expressed at high levels in late stage pachytene spermatocytes and in round spermatids. We found IP6K1 to be a novel component of the chromatoid body, a cytoplasmic granule in round spermatids composed of RNA and RNA binding proteins, and noted that this structure is absent in Ip6k1(-/-) round spermatids...
July 25, 2017: Journal of Cell Science
https://www.readbyqxmd.com/read/28743340/-ventilator-bundle-guided-by-context-of-jci-settings-can-effectively-reduce-the-morbidity-of-ventilator-associated-pneumonia
#13
Lili Zhao, Lili Liu, Jing Chen, Caili Yang, Jianjian Nie, Minwei Zhang
OBJECTIVE: To observe the impact of improving the compliance of ventilator bundle on morbidity of ventilator-associated pneumonia (VAP) in intensive care unit (ICU) patients undergoing mechanical ventilation (MV) guided by context of Joint Commission International (JCI) settings, and to study the oral care efficacy of suction tube sponge brush. METHODS: A prospective study was conducted. The patients who needed MV admitted to Department of Critical Care Medicine of the First Affiliated Hospital of Xiamen University from January 2013 to December 2016 were enrolled...
July 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28742415/air-and-dust-borne-fungi-in-indoor-and-outdoor-home-of-allergic-patients-in-a-dust-storm-affected-area
#14
Elham Shabankarehfard, Afshin Ostovar, Shokrollah Farrokhi, Behrouz Naeimi, Sasan Zaeri, Shahrokh Nazmara, Mozhgan Keshtkar, Farzaneh Sadeghzadeh, Sina Dobaradaran
Despite the recent increases in fungi-induced allergic diseases, there is no report yet in the region of the Persian Gulf on concentration levels of fungi in relationship with health state. Therefore, our aim was to measure fungi prevalence as well as to evaluate the relationships between air- and dust-borne fungal genera and allergic diseases. A matched case-control study was carried out including 45 allergic cases and 45 age- and gender-matched controls for each individual. Indoor and outdoor dust and indoor air samples were collected from participant homes during May to October 2015...
July 25, 2017: Immunological Investigations
https://www.readbyqxmd.com/read/28742258/metabolite-profiling-of-non-sterile-rhizosphere-soil
#15
Pierre Pétriacq, Alex Williams, T E Anne Cotton, Alexander E McFarlane, Stephen A Rolfe, Jurriaan Ton
Rhizosphere chemistry is the sum of root exudation chemicals, their breakdown products and microbial products of soil-derived chemicals. To date, most studies about root exudation chemistry are based on sterile cultivation systems, which limits the discovery of microbial breakdown products that act as semiochemicals and shape microbial rhizosphere communities. Here, we present a method for untargeted metabolic profiling of non-sterile rhizosphere soil. We have developed an experimental growth system that enables collection and analysis of rhizosphere chemicals from different plant species...
July 25, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/28741603/role-of-the-lung-microbiome-in-the-pathogenesis-of-chronic-obstructive-pulmonary-disease
#16
REVIEW
Lei Wang, Ke Hao, Ting Yang, Chen Wang
OBJECTIVE: The development of culture-independent techniques for microbiological analysis shows that bronchial tree is not sterile in either healthy or chronic obstructive pulmonary disease (COPD) individuals. With the advance of sequencing technologies, lung microbiome has become a new frontier for pulmonary disease research, and such advance has led to better understanding of the lung microbiome in COPD. This review aimed to summarize the recent advances in lung microbiome, its relationships with COPD, and the possible mechanisms that microbiome contributed to COPD pathogenesis...
July 24, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28741225/conversion-of-external-ventricular-drainage-to-ventriculo-peritoneal-shunt-to-change-or-not-to-change-the-proximal-catheter
#17
Jehuda Soleman, Haggai Benvenisti, Shlomi Constantini, Jonathan Roth
PURPOSE: In this study, we investigate the occurrence rate of early shunt infection and malfunction in pediatric patients after converting an external ventricular drainage (EVD) to a ventriculo-peritoneal shunt (VPS) without replacing the ventricular catheter. METHODS: Data was retrospectively reviewed for 17 pediatric patients (11 male (64.7%), mean age 7.5 years, range 0.25-15 years) who underwent 18 consecutive direct conversions of tunneled EVD to VPS without replacing the ventricular catheter between 2008 and 2017...
July 24, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28740850/the-role-of-dog-population-management-in-rabies-elimination-a-review-of-current-approaches-and-future-opportunities
#18
REVIEW
Louise H Taylor, Ryan M Wallace, Deepashree Balaram, Joann M Lindenmayer, Douglas C Eckery, Beryl Mutonono-Watkiss, Ellie Parravani, Louis H Nel
Free-roaming dogs and rabies transmission are integrally linked across many low-income countries, and large unmanaged dog populations can be daunting to rabies control program planners. Dog population management (DPM) is a multifaceted concept that aims to improve the health and well-being of free-roaming dogs, reduce problems they may cause, and may also aim to reduce dog population size. In theory, DPM can facilitate more effective rabies control. Community engagement focused on promoting responsible dog ownership and better veterinary care could improve the health of individual animals and dog vaccination coverage, thus reducing rabies transmission...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28740247/inactivation-mechanism-of-escherichia-coli-induced-by-slightly-acidic-electrolyzed-water
#19
Zhangying Ye, Shuo Wang, Tao Chen, Weishan Gao, Songming Zhu, Jinsong He, Zhiying Han
Foodborne disease outbreak caused by food microbiological contamination is a serious public health problem. Slightly acidic electrolyzed water (SAEW), a new ultra-high effect and wide-spectrum disinfectant that is colourless, odourless, and harmless to humans and the environment, is directly used on food surfaces in Japan and America. However, the underlying inactivation mechanism remains unknown. In this study, biochemical and cellular changes were observed to investigate the bactericidal mechanism of SAEW against Escherichia coli (E...
July 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28738899/a-rare-manifestation-of-burns-after-lightning-strike-in-rural-ghana-a-case-report
#20
Paschal Awingura Apanga, John Atigiba Azumah, Joseph Bayewala Yiranbon
BACKGROUND: Lightning is a natural phenomenon that mostly affects countries in the tropical and subtropical regions of the globe, including Ghana. Lightning strikes pose a global public health issue. Although strikes to humans are uncommon, it is associated with high morbidity and mortality. CASE PRESENTATION: We present a case of a 10-year-old Ghanaian girl who got second-degree burns after being struck by lightning. She was put on an intravenous broad-spectrum antibiotic (ceftriaxone), Ringer's lactate, and her burns were dressed with sterile gauze impregnated with Vaseline (petroleum jelly) and silver sulfadiazine ointment...
July 25, 2017: Journal of Medical Case Reports
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