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https://www.readbyqxmd.com/read/28642584/molecular-switching-system-using-glycosylphosphatidylinositol-to-select-cells-highly-expressing-recombinant-proteins
#1
Emmanuel Matabaro, Zeng'an He, Yi-Shi Liu, Hui-Jie Zhang, Xiao-Dong Gao, Morihisa Fujita
Although many pharmaceutical proteins are produced in mammalian cells, there remains a challenge to select cell lines that express recombinant proteins with high productivity. Since most biopharmaceutical proteins are secreted by cells into the medium, it is difficult to select cell lines that produce large amounts of the target protein. To address this issue, a new protein expression system using the glycosylphosphatidylinositol (GPI)-anchor was developed. PGAP2 is involved in processing GPI-anchored proteins (GPI-APs) during transport...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28615446/lysosome-mediated-degradation-of-a-distinct-pool-of-lipid-droplets-during-hepatic-stellate-cell-activation
#2
Maidina Tuohetahuntila, Martijn R Molenaar, Bart Spee, Jos F Brouwers, Richard Wubbolts, Martin Houweling, Cong Yan, Hong Du, Brian C VanderVen, Arie B Vaandrager, J Bernd Helms
Activation of hepatic stellate cells (HSCs) is a critical step in the development of liver fibrosis. During activation, HSCs lose their lipid droplets (LDs) containing triacylglycerols (TAGs), cholesteryl esters (CEs) and retinyl esters (REs). We previously provided evidence for the presence of two distinct LD pools, a pre-existing and a dynamic LD pool. Here we investigate the mechanisms of neutral lipid metabolism in the pre-existing LD pool. To investigate the involvement of lysosomal degradation of neutral lipids, we studied the effect of lalistat, a specific lysosomal acid lipase (LAL/Lipa) inhibitor on LD degradation in HSCs during activation in vitro The LAL-inhibitor increased the levels of TAG, CE and RE in both rat and mouse HSCs...
June 14, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28611758/genome-wide-analyses-reveal-genes-subject-to-positive-selection-in-pasteurella-multocida
#3
Peili Cao, Dongchun Guo, Jiasen Liu, Qian Jiang, Zhuofei Xu, Liandong Qu
Pasteurella multocida, a Gram-negative opportunistic pathogen, has led to a broad range of diseases in mammals and birds, including fowl cholera in poultry, pneumonia and atrophic rhinitis in swine and rabbit, hemorrhagic septicemia in cattle, and bite infections in humans. In order to better interpret the genetic diversity and adaptation evolution of this pathogen, seven genomes of P. multocida strains isolated from fowls, rabbit and pigs were determined by using high-throughput sequencing approach. Together with publicly available P...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28591813/the-energy-expenditure-benefits-of-reallocating-sedentary-time-with-physical-activity-a-systematic-review-and-meta-analysis
#4
Aviroop Biswas, Paul I Oh, Guy E Faulkner, Alis Bonsignore, Maureen T Pakosh, David A Alter
Background: We compared direct and daily cumulative energy expenditure (EE) differences associated with reallocating sedentary time to physical activity in adults for meaningful EE changes. Methods: Peer-reviewed studies in PubMed, Medline, EMBASE, CINAHL, PsycINFO, Cochrane Central Register of Controlled Trials and Cochrane Database of Systematic Reviews were searched from inception to March 2017. Randomized and non-randomized interventions with sedentary time and EE outcomes in adults were included...
June 7, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/28561039/sedentary-behavior-and-compensatory-mechanisms-in-response-to-different-doses-of-exercise-a-randomized-controlled-trial-in-overweight-and-obese-adults
#5
E A Castro, P B Júdice, A M Silva, P J Teixeira, P J Benito
BACKGROUND/OBJECTIVES: To examine compensatory changes in sedentary behavior (SB) and light-intensity physical activities (LIPA) in response to a 22-week exercise training program in overweight/obese adults; and to determine if different forms of exercise training and physical activity recommendations interact with these compensatory changes. SUBJECTS/METHODS: Eighty-nine overweight and obese individuals (body mass index (BMI): 25-34.9 kg/m(2), 48% males), aged 18-50 years, were randomized into four intervention groups (strength, endurance, combined strength + endurance and physical activity recommendations) with a 25-30% caloric restriction of total daily energy expenditure for 22 weeks...
May 31, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28559511/diagnostic-performance-of-genotype-%C3%A2-mtbdrplus-line-probe-assay-in-bronchoalveolar-lavage-for-pulmonary-tuberculosis-diagnosis-in-sputum-scarce-and-smear-negative-patients
#6
Farah Idrees, Muhammad Irfan, Kauser Jabeen, Joveria Farooqi, Rumina Hasan
BACKGROUND: MTBDRplus line probe assay (LiPA) has been endorsed by the World Health Organization for pulmonary tuberculosis (TB) diagnosis. However, its value for Mycobacterium tuberculosis (MTB) detection in bronchoalveolar lavage (BAL) needs exploration. This study determined the diagnostic performance of MTBDRplus in BAL for MTB complex detection and isoniazid/rifampicin resistance in smear-negative and sputum scarce patients. MATERIALS AND METHODS: Retrospective evaluation of data (January-December 2013) from patients who underwent bronchoscopy was done...
April 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28541628/high-risk-human-papillomavirus-genotype-distribution-and-attribution-to-cervical-cancer-and-precancerous-lesions-in-a-rural-chinese-population
#7
Xue Lian Zhao, Shang Ying Hu, Qian Zhang, Li Dong, Rui Mei Feng, Ross Han, Fang Hui Zhao
OBJECTIVE: To explore the genotype distribution of high-risk human papillomavirus (HR-HPV) and its attribution to different grades of cervical lesions in rural China, which will contribute to type-specific HPV screening tests and the development of new polyvalent HPV vaccines among the Chinese population. METHODS: One thousand two hundred ninety-two subjects were followed based on the Shanxi Province Cervical Cancer Screening Study I (SPOCCS-I), and screened by HPV DNA testing (hybrid capture® 2 [HC2]), liquid-based cytology (LBC), and if necessary, directed or random colposcopy-guided quadrant biopsies...
July 2017: Journal of Gynecologic Oncology
https://www.readbyqxmd.com/read/28539489/lipa-variants-in-genome-wide-association-studies-of-coronary-artery-diseases-loss-of-function-or-gain-of-function
#8
EDITORIAL
Hanrui Zhang, Muredach P Reilly
No abstract text is available yet for this article.
June 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28538091/wolman-disease-a-mimic-of-infant-leukemia
#9
Kaduveettil G Gopakumar, Priyakumari Thankamony, Sheela Nampoothiri, Deeksha Bali, Jubie Raj, Jayasudha A Vasudevan, Ramachandran K Nair
BACKGROUND: Infant leukemia most commonly present with pallor and hepatosplenomegaly. The possibility of other differential diagnosis also has to be kept in mind during evaluation, as identifying the precise etiology for this clinical presentation is crucial for management. OBSERVATION: An infant, was referred to us with suspected infant leukemia and was subsequently diagnosed to have lysosomal acid lipase deficiency/Wolman disease with a novel 5 bp deletion "c...
May 23, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28533767/characterization-of-mycobacterium-chelonae-like-strains-by-comparative-genomics
#10
Christiane L Nogueira, Luiz G P de Almeida, Maria C Menendez, Maria J Garcia, Luciano A Digiampietri, Erica Chimara, Margo Cnockaert, Juan C Palomino, Françoise Portaels, Anandi Martin, Peter Vandamme, Sylvia C Leão
Isolates of the Mycobacterium chelonae-M. abscessus complex are subdivided into four clusters (CHI to CHIV) in the INNO-LiPA® Mycobacterium spp DNA strip assay. A considerable phenotypic variability was observed among isolates of the CHII cluster. In this study, we examined the diversity of 26 CHII cluster isolates by phenotypic analysis, drug susceptibility testing, whole genome sequencing and single-gene analysis. Pairwise genome comparisons were performed using several approaches, including average nucleotide identity (ANI) and genome-to-genome distance (GGD) among others...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28524399/reallocating-sedentary-time-to-moderate-to-vigorous-physical-activity-but-not-to-light-intensity-physical-activity-is-effective-to-reduce-adiposity-among-youths-a-systematic-review-and-meta-analysis
#11
REVIEW
A García-Hermoso, J M Saavedra, R Ramírez-Vélez, U Ekelund, B Del Pozo-Cruz
The aim of the study was to summarize the evidence of the effects of reallocating time spent in sedentary behaviours in different activity intensities on youth's adiposity. Five databases were searched. Studies that reported the effects of replacing sedentary behaviour with light-intensity physical activity (LIPA) and/or moderate-to-vigorous physical activity (MVPA) on at least one adiposity parameter. The estimated regression coefficients (β) and 95% CIs were combined and meta-analysed. Data from 7,351 youths and five studies were analysed...
May 19, 2017: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28509324/three-dimensional-neurosonography-a-novel-field-in-fetal-medicine
#12
Michał Lipa, Ritsuko Kimata Pooh, Mirosław Wielgoś
Neurosonography is a promising technique for prenatal diagnosis, combining features of ultrasound imaging with fetal neurology. The brain is a three-dimensional structure, therefore observing brain structure in the three basic planes (sagittal, coronal and axial) is mandatory. The anterior fontanelle and sagittal suture may serve as acoustic ultrasound windows in the transvaginal brain scan, allowing to obtain high-resolution neuroimages of the intracranial structures. Furthermore, three-dimensional (3D) ultrasound combined with the transvaginal brain approach provides detailed and sophisticated neuroimages...
2017: Ginekologia Polska
https://www.readbyqxmd.com/read/28502515/lysosomal-acid-lipase-deficiency-in-all-siblings-of-the-same-parents
#13
James J Maciejko, Premchand Anne, Saleem Raza, Hernando J Lyons
We present 4 normal-weight sibling children with lysosomal acid lipase deficiency (LAL-D). LAL-D was considered in the differential diagnosis based on the absence of secondary causes and primary inherited traits for their marked hyperlipidemia, together with unexplained hepatic transaminase elevation. Residual lysosomal acid lipase activity confirmed the diagnosis. DNA sequencing of LIPA indicated that the siblings were compound heterozygotes (c.894G>A and c.428+1G>A). This case describes the unusual occurrence of all offspring from the same nonconsanguineous mother and father inheriting compound heterozygosity of a recessive trait and the identification of an apparently unique LIPA mutation (c...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28502505/lysosomal-acid-lipase-deficiency-a-hidden-disease-among-cohorts-of-familial-hypercholesterolemia
#14
Joana Rita Chora, Ana Catarina Alves, Ana Margarida Medeiros, Cibelle Mariano, Goreti Lobarinhas, António Guerra, Helena Mansilha, Helena Cortez-Pinto, Mafalda Bourbon
BACKGROUND: Lysosomal acid lipase deficiency (LALD) is an autosomal recessive disorder and an unrecognized cause of dyslipidemia. Patients usually present with dyslipidemia and altered liver function and mutations in LIPA gene are the underlying cause of LALD. OBJECTIVE: The aim of this study was to investigate LALD in individuals with severe dyslipidemia and/or liver steatosis. METHODS: Coding, splice regions, and promoter region of LIPA were sequenced by Sanger sequencing in a cohort of mutation-negative familial hypercholesterolemia (FH) patients (n = 492) and in a population sample comprising individuals with several types of dyslipidemia and/or liver steatosis (n = 258)...
March 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28401034/targeting-wolman-disease-and-cholesteryl-ester-storage-disease-disease-pathogenesis-and-therapeutic-development
#15
REVIEW
Francis Aguisanda, Natasha Thorne, Wei Zheng
Wolman disease (WD) and cholesteryl ester storage disease (CESD) are lysosomal storage diseases (LSDs) caused by a deficiency in lysosomal acid lipase (LAL) due to mutations in the LIPA gene. This enzyme is critical to the proper degradation of cholesterol in the lysosome. LAL function is completely lost in WD while some residual activity remains in CESD. Both are rare diseases with an incidence rate of less than 1/100,000 births for WD and approximate 2.5/100,000 births for CESD. Clinical manifestation of WD includes hepatosplenomegaly, calcified adrenal glands, severe malabsorption and a failure to thrive...
2017: Current Chemical Genomics and Translational Medicine
https://www.readbyqxmd.com/read/28400281/the-pseudomonas-transcriptional-regulator-algr-controls-lipa-expression-via-the-noncoding-rna-rsmz-in-pseudomonas-protegens-pf-5
#16
Menggang Li, Jinyong Yan, Yunjun Yan
Pseudomonas lipases are well studied enzymes. However, few studies have been conducted to explore the mechanism underlying the regulation of lipases expression. AlgR, a global regulator, controls the expression of multiple genes, regulates bacterial peristalsis, and participates in the regulation of quorum-sensing (QS) system, and so on. In this study, the effect of AlgR on lipase expression was investigated by knocking out the algR and rsmZ genes or overexpressing them. It is found out that AlgR can regulate the expression of lipA at both transcriptional and translational levels, but the transcriptional level was dominant...
May 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28399607/surgeon-reported-needs-for-improved-training-in-identifying-and-managing-free-flap-compromise
#17
Catherine McMillan, Veerle D'Hondt, Alexandra H Marshall, Paul Binhammer, Joan Lipa, Laura Snell
Background This study examined the need for improved training in the identification and management of free flap (FF) compromise and assessed a potential role for simulated scenario training. Methods Online needs assessment surveys were completed by plastic surgeons and a subsample with expertise in microsurgery education participated in focus groups. Data were analyzed using descriptive statistics and mixed qualitative methods. Results In this study, 77 surgeons completed surveys and 11 experts participated in one of two focus groups...
July 2017: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/28399426/hpv-related-external-genital-lesions-among-men-residing-in-brazil
#18
Roberto J C Silva, Staci L Sudenga, Laura Sichero, Maria Luiza Baggio, Lenice Galan, Ricardo Cintra, B Nelson Torres, Mark Stoler, Anna R Giuliano, Luisa L Villa
The aims of this study were to determine the incidence of external genital lesions (EGLs), specifically histologically confirmed condyloma (genital warts) and Penile Intraepithelial Neoplasia (PeIN), and genital HPV infection progression to EGLs among healthy men aged 18-73 residing in Brazil. Subjects included 1118 men enrolled in the HPV Infection in Men (HIM) study between July 2005 and June 2009. At each visit, EGLs were biopsied and subjected to pathological evaluation. HPV status in genital swabs and biopsies was determined by Linear Array and INNO-LiPA, respectively...
April 8, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28391883/childhood-adult-onset-lysosomal-acid-lipase-deficiency-a-serious-metabolic-and-vascular-phenotype-beyond-liver-disease-four-new-pediatric-cases
#19
Pierre Poinsot, Sophie Collardeau Frachon, Lioara Restier, André Sérusclat, Mathilde Di Filippo, Sybil Charrière, Philippe Moulin, Alain Lachaux, Noel Peretti
BACKGROUND: The childhood/adult-onset lysosomal acid lipase deficiency (LALD; late-onset LALD) is a rare genetic disease. Children present severe fatty liver disease with early cirrhosis. Before enzyme replacement therapy, statins were the standard treatment to improve the severe dyslipidemia. However, late-onset LALD should be considered as a systemic metabolic disease: chronic hyper-low-density lipoprotein and hypo-high-density lipoprotein cholesterolemia induces early atherosclerosis in addition to the liver morbidity...
January 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/28389708/mathematical-modeling-and-experimental-validation-of-nanoemulsion-based-drug-transport-across-cellular-barriers
#20
Ekta Kadakia, Lipa Shah, Mansoor M Amiji
PURPOSE: Nanoemulsions have shown potential in delivering drug across epithelial and endothelial cell barriers, which express efflux transporters. However, their transport mechanisms are not entirely understood. Our goal was to investigate the cellular permeability of nanoemulsion-encapsulated drugs and apply mathematical modeling to elucidate transport mechanisms and sensitive nanoemulsion attributes. METHODS: Transport studies were performed in Caco-2 cells, using fish oil nanoemulsions and a model substrate, rhodamine-123...
April 7, 2017: Pharmaceutical Research
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