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alpha-1 antitrypsin

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https://www.readbyqxmd.com/read/29158881/serum-proteomic-profiling-of-obsessive-compulsive-disorder-washing-subtype-a-preliminary-study
#1
Mona Zamanian-Azodi, Mostafa Rezaei-Tavirani, Naser Nejadi, Afsaneh Arefi Oskouie, Faird Zayeri, Mostafa Hamdieh, Akram Safaei, Majid Rezaei-Tavirani, Alireza Ahmadzadeh, Alireza Amouzandeh-Nobaveh, Farshad Okhovatian
Introduction: Obsessive-Compulsive Disorder (OCD) is a disabling mental condition that its proteomic profiling is not yet investigated. Proteomics is a valuable tool to discover biomarker approaches. It can be helpful to detect protein expression changes in complex disorders such as OCD. Methods: Here, by the application of 2D gel electrophoresis (2DE), a pilot study of serum proteome profile of females with washing subtype of OCD was performed. Serum samples were obtained from females with washing subtype of OCD...
July 2017: Basic and Clinical Neuroscience
https://www.readbyqxmd.com/read/29158672/lung-transplantation-and-survival-outcomes-in-patients-with-oxygen-dependent-copd-with-regard-to-their-alpha-1-antitrypsin-deficiency-status
#2
Magnus Ekström, Hanan Tanash
Background: Individuals with severe alpha-1 antitrypsin deficiency (AATD) have an increased risk of developing COPD. However, outcomes during long-term oxygen therapy (LTOT) in patients with severe AATD and hypoxemia are unknown. Patients and methods: This was a prospective, population-based, consecutive cohort study of patients on LTOT due to COPD in the period from January 1, 1987, to June 30, 2015, in the Swedish National Registry for Respiratory Failure (Swedevox)...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29144158/glycosylation-repurposes-alpha-1-antitrypsin-for-resolution-of-community-acquired-pneumonia
#3
Cormac McCarthy, Danielle M Dunlea, Radka Saldova, Michael Henry, Paula Meleady, Oliver J McElvaney, Brian Marsh, Pauline M Rudd, Emer P Reeves, Noel G McElvaney
No abstract text is available yet for this article.
November 16, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29122334/alpha-1-antitrypsin-deficiency-associated-with-the-pi-q0our%C3%A3-m-allele-in-a-2-year-old-girl-and-family-study-an-unusual-case
#4
Ramón Antonio Tubío-Pérez, Milagros Blanco-Pérez, Cristina Ramos-Hernández, María Torres-Durán
No abstract text is available yet for this article.
November 6, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29121442/enteric-infections-in-young-children-are-associated-with-environmental-enteropathy-and-impaired-growth
#5
Christine Marie George, Vanessa Burrowes, Jamie Perin, Lauren Oldja, Shwapon Biswas, David Sack, Shahnawaz Ahmed, Rashidul Haque, Nurul Amin Bhuiyan, Tahmina Parvin, Sazzadul Islam Bhuyian, Mahmuda Akter, Shan Li, Gayathri Natarajan, Mohammad Shahnaij, Abu G Faruque, O Colin Stine
OBJECTIVE: To investigate the relationship between fecal contamination in child play spaces, enteric infections, environmental enteropathy (EE), and impaired growth among young children. METHODS: Prospective cohort study of 203 children 6-30 months of age in rural Bangladesh. Stool samples were analyzed by quantitative PCR for Shigella, Enterotoxigenic Escherichia coli (ETEC), Campylobacter jejuni, Giardia spp, and Cryptosporidium spp. Four fecal markers of intestinal inflammation were also measured: alpha-1-antitrypsin, myeloperoxidase, neopterin, and calprotectin...
November 9, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29096562/alpha-1-antitrypsin-ameliorates-ventilator-induced-lung-injury-in-rats-by-inhibiting-inflammatory-responses-and-apoptosis
#6
He Zhu, Jianshuai He, Jia Liu, Xin Zhang, Fengyun Yang, Pingting Liu, Shilei Wang
Mechanical ventilation is extensively used to treat patients with lung injury but may result in ventilator-induced lung injury (VILI). The present study investigated the protective effect of alpha 1-antitrypsin (AAT) on VILI. Adult male rats were subjected to sham, ventilation + saline, or ventilation + AAT treatment and lung injuries were evaluated. Peripheral blood and bronchoalveolar lavage fluid (BALF) were obtained to assess systemic and local inflammatory responses, respectively. Mechanical ventilation resulted in lung injury, as evidenced by histological abnormalities as well as elevations in PaO2/FiO2 ratio, the wet-to-dry weight ratio, and the BALF level of proteins...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29090095/case-finding-for-alpha1-antitrypsin-deficiency-in-kazakh-patients-with-copd
#7
Ardak Zhumagaliyeva, Stefania Ottaviani, Timm Greulich, Marina Gorrini, Claus Vogelmeier, Ludmila Karazhanova, Gulmira Nurgazina, Annalisa DeSilvestri, Victor Kotke, Valentina Barzon, Michele Zorzetto, Angelo Corsico, Ilaria Ferrarotti
BACKGROUND: Alpha-1-antitrypsin deficiency (AATD) is an under-diagnosed condition in patients with chronic obstructive pulmonary disease (COPD). The aim of this study was to screen for AATD in Kazakh patients with COPD using dried blood spot specimens. METHODS: The alpha1-antitrypsin (AAT) concentration was determined by nephelometry, PCR was used to detect PiS and PiZ alleles; and isoelectric focusing was used to confirm questionable genotype results and detect rare AAT variants...
2017: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/29070580/copd-in-individuals-with-the-pimz-alpha-1-antitrypsin-genotype
#8
REVIEW
Haitham S Al Ashry, Charlie Strange
Since the discovery of severe alpha-1 antitrypsin deficiency as a genetic risk factor for emphysema, there has been ongoing debate over whether individuals with intermediate deficiency with one protease inhibitor Z allele (PiMZ, or MZ) are at some risk for emphysema. This is important, because MZ individuals comprise 2-5% of the general population. In this review we summarise the evidence about the risks of the MZ population to develop emphysema or asthma. We discuss the different study designs that have tried to answer this question...
December 31, 2017: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/29065688/tandem-femto-and-nanomolar-analysis-of-two-protein-biomarkers-in-plasma-on-a-single-mixed-antibody-monolayer-surface-using-surface-plasmon-resonance
#9
Suhee Kim, Jeong Won Park, Alastair W Wark, Sung Hwa Jhung, Hye Jin Lee
The multiplexed detection of protein biomarkers in plasma present over a range of clinically relevant concentrations continues to be difficult for surface-based bioaffinity detection platforms such as surface plasmon resonance (SPR). As well as nonspecific adsorption, challenges include quantitative comparison between targets whose concentrations differ by orders of magnitude, regenerating SPR chips after plasma exposure, and the two- or four-channel limitation of many commercial SPR instruments limiting sample throughput...
November 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29062067/alpha-1-antitrypsin-augmentation-therapy-decreases-mir-199a-5p-mir-598-and-mir-320a-expression-in-monocytes-via-inhibition-of-nf%C3%AE%C2%BAb
#10
Tidi Hassan, Chiara de Santi, Catherine Mooney, Noel G McElvaney, Catherine M Greene
Alpha-1 antitrypsin (AAT) augmentation therapy involves infusion of plasma-purified AAT to AAT deficient individuals. Whether treatment affects microRNA expression has not been investigated. This study's objectives were to evaluate the effect of AAT augmentation therapy on altered miRNA expression in monocytes and investigate the mechanism. Monocytes were isolated from non-AAT deficient (MM) and AAT deficient (ZZ) individuals, and ZZs receiving AAT. mRNA (qRT-PCR, microarray), miRNA (miRNA profiling, qRT-PCR), and protein (western blotting) analyses were performed...
October 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29055397/vitamin-k-deficit-and-elastolysis-theory-in-pulmonary-elasto-degenerative-diseases
#11
Rob Janssen, Cees Vermeer
Elastin is a unique protein providing deformability and resilience to dynamic tissues, such as arteries and lungs. It is an absolute basic requirement for circulation and respiration. Elastin can be degraded by elastases and has a high calcium affinity. Elastin calcification and elastin degradation are two pathological processes that impair elastin's functioning. Furthermore, elastin degradation can be associated to elastin calcification. Matrix Gla Protein (MGP) is probably the most potent natural inhibitor of elastin calcification and requires vitamin K for its activation...
October 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29049242/the-prevalence-of-pi-s-and-pi-z-serpina1-alleles-in-healthy-individuals-and-copd-patients-in-saudi-arabia-a-case-control-study
#12
Noura Al-Jameil, Amina A Hassan, Rana Hassanato, Sree R Isac, Maram Al Otaiby, Fadwa Al-Shareef, Basmah Al-Maarik, Iman Al Ajeyan, Khloud Al-Bahloul, Samina Ghani, Dana Al-Torbak
Alpha-1 antitrypsin (AAT) is an acute phase protein produced in hepatocytes. Its deficiency affects the lungs and liver. A case-control study was carried out to determine the prevalence of 2 common deficiency alleles, PI*S and PI*Z, for alpha-1 antitrypsin deficiency (AATD) in both healthy and chronic obstructive pulmmonary disease (COPD)-affected Saudi populations and to clarify the importance of genetic tests in the screening of people at risk for COPD.One thousand blood samples from healthy individuals and 1000 from COPD-affected Saudi individuals were genotyped for the above-mentioned alleles, using real-time polymerase chain reaction (PCR), with the exclusion of any other nationalities...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29045001/anti-inflammaging-effects-of-human-alpha-1-antitrypsin
#13
Ye Yuan, Benedetto DiCiaccio, Ying Li, Ahmed S Elshikha, Denis Titov, Brian Brenner, Lee Seifer, Hope Pan, Nurdina Karic, Mohammad A Akbar, Yuanqing Lu, Sihong Song, Lei Zhou
Inflammaging plays an important role in most age-related diseases. However, the mechanism of inflammaging is largely unknown, and therapeutic control of inflammaging is challenging. Human alpha-1 antitrypsin (hAAT) has immune-regulatory, anti-inflammatory, and cytoprotective properties as demonstrated in several disease models including type 1 diabetes, arthritis, lupus, osteoporosis, and stroke. To test the potential anti-inflammaging effect of hAAT, we generated transgenic Drosophila lines expressing hAAT...
October 17, 2017: Aging Cell
https://www.readbyqxmd.com/read/29043847/smoking-related-interstitial-fibrosis-evidence-of-radiologic-regression-with-advancing-age-and-smoking-cessation
#14
Aurélie Fabre, Ann Treacy, Lisa P Lavelle, Maciek Narski, Nazia Faheem, David Healy, Jonathan D Dodd, Michael P Keane, James J Egan, Gilles Jebrak, Hervé Mal, Marcus W Butler
More data are needed regarding the radiology, co-morbidities and natural history of smoking-related interstitial fibrosis (SRIF), a common pathological finding, mainly described heretofore in association with lung cancer, where respiratory bronchiolitis (RB) usually co-exists. We prospectively acquired high resolution CT scan data (edge-enhancing lung reconstructions) to detect any radiologic interstitial lung abnormality (ILA) in individuals who ultimately underwent surgical lobectomy for lung cancer (n = 20), for radiologic/pathologic correlation...
October 18, 2017: COPD
https://www.readbyqxmd.com/read/29042303/changes-in-serum-proteins-in-dogs-with-ehrlichia-canis-infection
#15
Damián Escribano, Hüseyin Cihan, Silvia Martínez-Subiela, Pinar Levent, Meric Kocaturk, Nilüfer Aytug, Jose Joaquin Cerón, Asta Tvarijonaviciute, Zeki Yilmaz
The aim of this study was the identification of proteins differentially represented in the serum proteome of seropositive dogs with (Group 1) and without (Group 2) clinical-pathologic signs consistent with ehrlichiosis compared to healthy control dogs. Serum samples were collected from 20 dogs of various breeds with naturally occurring ehrlichiosis (10 dogs belonged to Group 1 and 10 to Group 2) and 10 healthy dogs. Two-dimensional electrophoresis (2DE) of pooled serum for each of the group of dogs were run in triplicate...
October 16, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29034613/massive-ascites-and-the-heterozygous-alpha-1-antitrypsin-%C3%AE-1-at-living-related-donor-liver-in-the-homozygous-child
#16
Shirin E Khorsandi, Richard Thompson, Hector Vilca-Melendez, Anil Dhawan, Nigel Heaton
The following is a short report on the use of a heterozygous (PiMZ) alpha 1 antitrypsin (α1AT) living related donor liver in a homozygous (PiZ) child that was complicated by massive ascites early after transplant. This clinical report is then followed by a brief summary of present knowledge on the α1 AT protein and management of massive ascites in the pediatric liver transplant recipient.
October 15, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/29033425/evaluation-by-mr-enterocolonography-of-lansoprazole-induced-collagenous-colitis-accompanied-with-protein-losing-enteropathy-a-case-report
#17
Akinori Mizoguchi, Masaaki Higashiyama, Keisuke Ikeyama, Shin Nishii, Hisato Terada, Hirotaka Furuhashi, Takeshi Takajo, Koji Maruta, Yuichi Yasutake, Kazuhiko Shirakabe, Chikako Watanabe, Kengo Tomita, Shunsuke Komoto, Shigeaki Nagao, Soichiro Miura, Ryota Hokari
We herein describe a 69-year-old man suffering from chronic diarrhea caused by lansoprazole (LPZ)-induced collagenous colitis (CC) accompanied with protein-losing enteropathy (PLE), diagnosed by increased fecal alpha-1 antitrypsin clearance and the findings of leakage from the descending colon to the sigmoid colon on scintigraphy. MR enterocolonography (MREC) was also performed for differentiating digestive diseases, and inflamed findings were observed around the same portion as those on scintigraphy, suggesting that this region was responsible for protein loss in this case...
October 16, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29029865/total-proteolytic-activity-and-concentration-of-alpha-1-antitrypsin-in-meconium-for-assessment-of-the-protease-antiprotease-balance
#18
Ewa Skarżyńska, Bartosz Kiersztyn, Paulina Wilczyńska, Artur Jakimiuk, Barbara Lisowska-Myjak
BACKGROUND: During intrauterine life, various proteolytic enzymes and their main inhibitor, alpha-1 antitrypsin, accumulate naturally in meconium. A protease/antiprotease balance is required to maintain the biological stability of the environment in which the fetus develops. METHODS: The pool of active proteases was determined using the EnzChek Protease Assay Kit. The concentration of alpha-1 antitrypsin in meconium was measured by enzyme-linked immunosorbent assay...
October 4, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28987255/genetic-testing-in-liver-disease-what-to-order-in-whom-and-when
#19
REVIEW
Emily A Schonfeld, Robert S Brown
Genetic causes of liver disease lead to a wide range of presentations, from mildly abnormal liver tests to acute liver failure. This article discusses the indications for testing and what to test for hereditary hemochromatosis, progressive familial intrahepatic cholestasis, benign recurrent intrahepatic cholestasis, lysosomal acid lipase deficiency, Gilbert syndrome, alpha-1 antitrypsin deficiency, and Wilson disease.
November 2017: Clinics in Liver Disease
https://www.readbyqxmd.com/read/28974776/associations-between-snps-and-immune-related-circulating-proteins-in-schizophrenia
#20
Man K Chan, Jason D Cooper, Stefanie Heilmann-Heimbach, Josef Frank, Stephanie H Witt, Markus M Nöthen, Johann Steiner, Marcella Rietschel, Sabine Bahn
Genome-wide association studies (GWAS) and proteomic studies have provided convincing evidence implicating alterations in immune/inflammatory processes in schizophrenia. However, despite the convergence of evidence, direct links between the genetic and proteomic findings are still lacking for schizophrenia. We investigated associations between single nucleotide polymorphisms (SNPs) from the custom-made PsychArray and the expression levels of 190 multiplex immunoassay profiled serum proteins in 149 schizophrenia patients and 198 matched controls...
October 3, 2017: Scientific Reports
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