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https://www.readbyqxmd.com/read/28209733/dual-function-of-tgf%C3%AE-in-lens-epithelial-cell-fate-implications-for-secondary-cataract
#1
Bruce A Boswell, Anna Korol, Judith A West-Mays, Linda S Musil
The most common vision-disrupting complication of cataract surgery is posterior capsule opacification (PCO; secondary cataract). PCO is caused by residual lens cells undergoing one of two very different cell fates: either transdifferentiating into myofibroblasts, or maturing into lens fiber cells. Although TGFβ has been strongly implicated in lens cell fibrosis, the factors responsible for the latter process have not been identified. We show here for the first time that TGFβ can induce purified primary lens epithelial cells within the same culture to undergo differentiation into either lens fiber cells or myofibroblasts...
February 16, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28208899/study-of-variation-in-intraocular-pressure-spike-iop-following-nd-yag-laser-capsulotomy
#2
Niharika K Shetty, Sriya Sridhar
INTRODUCTION: Posterior Capsular Opacifications (PCO) is a frequent complication of cataract surgery following posterior chamber intraocular lens implantation. Nd -Yag laser capsulotomy is the treatment of choice for PCO and is known to be associated with complications like Raised Intraocular Pressure (IOP), Intraocular lens pitting, intraocular lens cracks, cystoid macular oedema, retinal detachment, corneal burns. Raised IOP is the most common complication and prescribing anti-glaucoma drugs post capsulotomy is a common practise...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207414/anti-aging-effects-of-m2000-%C3%AE-d-mannuronic-acid-as-a-novel-immunosuppressive-drug-on-the-enzymatic-and-non-enzymatic-oxidative-stress-parameters-in-an-experimental-model
#3
Soma Hosseini, Mohammad Abdollahi, Gholamreza Azizi, Mohammad Javad Fattahi, Noshin Rastkari, Farzaneh Tofighi Zavareh, Zahra Aghazadeh, Abbas Mirshafiey
BACKGROUND: The anti-aging property of β-D-mannuronic acid (M2000) as a novel non-steroidal anti-inflammatory and immunosuppressive agent was investigated on several determinants relative to the oxidative stress in an animal model. MATERIALS AND METHODS: Sprague-Dawley rats were used for evaluating the safety and efficacy properties of M2000 on some oxidative stress enzymes, including the following: mitochondrial superoxide dismutase (SOD2), catalase (CAT), glutathione peroxidase (GPX1), glutathione S-transferase (GST), myeloperoxidase (MPO), and inducible nitric oxide synthase (iNOS) gene expression by real-time PCR...
February 16, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28195545/berberis-vulgaris-l-effects-on-oxidative-stress-and-liver-injury-in-lead-intoxicated-mice
#4
Jawhar Laamech, Jaouad El-Hilaly, Hamadi Fetoui, Yassine Chtourou, Hanane Gouitaa, Adel Tahraoui, Badiaa Lyoussi
Background Berberis vulgaris L. (BV), commonly known as "Aghriss" in Moroccan pharmacopoeia, is used to cure liver disorders and other diseases. The present study aimed to investigate the protective effect of BV aqueous extract against lead-induced toxicity in mice liver. Methods Sixty IOPS mice were divided into six groups and were treated as follows: group 1 (normal control) received double distilled water; group 2 (toxic control) received lead acetate (5 mg/kg body weight/day) in double distilled water for 40 days; groups 3-6 received BV aqueous extract at doses of 25, 50, 100 and 150 mg/kg body weight , respectively, once daily for 30 days from 11 day after beginning of lead acetate exposure to the end of the experiment...
February 14, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28179901/biochemical-molecular-and-transcriptional-highlights-of-the-biosynthesis-of-an-effective-biosurfactant-produced-by-bacillus-safensis-pha3-a-petroleum-dwelling-bacteria
#5
Abdulsamie Hanano, Mouhnad Shaban, Ibrahem Almousally
Petroleum crude oil (PCO)-dwelling microorganisms have exceptional biological capabilities to tolerate the toxicity of petroleum contaminants and are therefore promising emulsifier and/or degraders of PCO. This study describes a set of PCO-inhabiting bacterial species, one of which, identified as Bacillus safensis PHA3, produces an efficient biosurfactant which was characterized as a glycolipid. Fourier transform infrared spectrometer, nuclear magnetic resonance, Thin layer chromatography, HPLC, and GC-MS analysis of the purified biosurfactant revealed that the extracted molecule under investigation is likely a mannolipid molecule with a hydrophilic part as mannose and a hydrophobic part as hexadecanoic acid (C16:0)...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28177683/olanzapine-alleviates-oxidative-stress-in-the-liver-of-socially-isolated-rats
#6
Andrijana Stanisavljevic, Ivana Peric, Marija Pantelic, Dragana M Filipovic
Olanzapine, an antipsychotic drug, is used to treat depressive disorder, but its effects on the liver, main site of drug metabolism, still remain elusive. We studied the effects of three weeks of olanzapine treatment (7.5 mg/kg/day) on the malondialdehyde (MDA) and protein carbonyl (PCO) contents, protein expression of copper/zinc superoxide dismutase (CuZnSOD) and activity of total superoxide dismutase (SOD) as well as catalase (CAT) protein expression/activity levels in the liver cytosol of rats exposed to six weeks of chronic social isolation (CSIS), that causes depressive- and anxiety-like behaviors...
December 22, 2016: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28177588/a-retrospective-study-of-isolated-fractures-of-the-alveolar-process-in-the-permanent-dentition
#7
Maja Marotti, Kurt Alois Ebeleseder, Gerold Schwantzer, Stefanie Jauk
BACKGROUND/AIM: There is a lack of studies of fractures of the alveolar process (FAP). Only five were published in the last fifty years. The aim of this study was to analyze the risk of pulp necrosis and infection (PN), pulp canal obliteration (PCO), infection-related root resorption (IRR), ankylosis-related resorption (ARR), marginal bone loss (MBL), and tooth loss (TL) as well as to identify the possible risk factors for teeth involved in an isolated alveolar process fracture. In the second part, any late complications of the involved teeth were reported in patients who responded to a follow-up examination...
February 8, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28165609/comparison-of-visual-outcomes-after-bilateral-implantation-of-extended-range-of-vision-and-trifocal-intraocular-lenses
#8
Ramón Ruiz-Mesa, Antonio Abengózar-Vela, Ana Aramburu, María Ruiz-Santos
PURPOSE: To compare visual outcomes after cataract surgery with bilateral implantation of 2 intraocular lenses (IOLs): extended range of vision and trifocal. METHODS: Each group of this prospective study comprised 40 eyes (20 patients). Phacoemulsification followed by bilateral implantation of a FineVision IOL (group 1) or a Symfony IOL (group 2) was performed. The following outcomes were assessed up to 1 year postoperatively: binocular uncorrected distance visual acuity (UDVA), binocular uncorrected intermediate visual acuity (UIVA) at 60 cm, binocular uncorrected near visual acuity (UNVA) at 40 cm, spherical equivalent (SE) refraction, defocus curves, mesopic and photopic contrast sensitivity, halometry, posterior capsule opacification (PCO), and responses to a patient questionnaire...
January 28, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28161922/a-prospective-evaluation-of-posterior-capsule-opacification-in-eyes-with-posterior-capsule-plaque-a-case-control-study
#9
Abhay R Vasavada, Mamidipudi R Praveen, Gauri D Shah, Kaid Johar, Rajkumar Sankaranarayanan
PURPOSE: To compare the development of posterior capsule opacification (PCO) between eyes with and without posterior capsule plaque after single-piece hydrophobic acrylic intraocular lens (IOL) implantation 5 years postoperatively. DESIGN: A prospective observational case-control study. METHODS: One hundred one consecutive eyes with posterior capsule plaque (cases) were compared with the same number of cataractous eyes without posterior capsule plaque (controls)...
January 2017: Asia-Pacific Journal of Ophthalmology
https://www.readbyqxmd.com/read/28149310/the-effects-of-coenzyme-q10-supplementation-on-cardiometabolic-markers-in-overweight-type-2-diabetic-patients-with-stable-myocardial-infarction-a-randomized-double-blind-placebo-controlled-trial
#10
Seyyed Mehdi Mirhashemi, Vajiheh Najafi, Fariba Raygan, Zatollah Asemi
BACKGROUND: Limited data are present that have assessed the effects of coenzyme Q10 (CoQ10) intake on cardiometabolic markers in type 2 diabetic patients with coronary heart disease (CHD). This study was done to determine the effects of CoQ10 administration on cardiometabolic markers in overweight diabetic patients with stable myocardial infarction. METHODS: This randomized double-blind placebo-controlled clinical trial was done among 60 diabetic patients with CHD aged 45-75 years old...
July 2016: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/28137510/influence-of-aldose-reductase-on-epithelial-to-mesenchymal-transition-signaling-in-lens-epithelial-cells
#11
Kun-Che Chang, Biehuoy Shieh, J Mark Petrash
Cataract is the most frequent cause of blindness worldwide and is treated by surgical removal of the opaque lens to restore the light path to the retina. While cataract surgery is a safe procedure, some patients develop a complication of the surgery involving opacification and wrinkling of the posterior lens capsule. This process, called posterior capsule opacification (PCO), requires a second clinical treatment that can in turn lead to additional complications. Prevention of PCO is a current unmet need in the vision care enterprise...
January 27, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28124216/zinc-deficiency-and-oxidative-stress-involved-in-valproic-acid-induced-hepatotoxicity-protection-by-zinc-and-selenium-supplementation
#12
Nematollah Ahangar, Maloos Naderi, Abdolali Noroozi, Maryam Ghasemi, Ehsan Zamani, Fatemeh Shaki
Valproic acid (VPA) is an antiepileptic drug, which its usage is limited due to its hepatotoxicity. The present study was conducted to investigate the efficacy of zinc (Zn) and selenium (Se), necessary trace elements, against VPA-induced hepatotoxicity in Wistar rats. The animals were divided into five groups: control, VPA 200 mg/kg, VPA + Zn (100 mg/kg), VPA + Se (100 mg/kg), and VPA + Zn + Se. The administration of VPA for four consecutive weeks resulted in decrease in serum level of Zn in rats...
January 25, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28120885/-blue-carbon-and-nutrient-stocks-of-salt-marshes-at-a-temperate-coastal-lagoon-ria-de-aveiro-portugal
#13
Ana I Sousa, Danielle B Santos, Eduardo Ferreira da Silva, Lisa P Sousa, Daniel F R Cleary, Amadeu M V M Soares, Ana I Lillebø
Ria de Aveiro is a mesotidal coastal lagoon with one of the largest continuous salt marshes in Europe. The objective of this work was to assess C, N and P stocks of Spartina maritima (low marsh pioneer halophyte) and Juncus maritimus (representative of mid-high marsh halophytes) combined with the contribution of Halimione portulacoides, Sarcocornia perennis, and Bolbochenous maritimus to the lagoon ≈4400 ha marsh area. A multivariate analysis (PCO), taking into account environmental variables and the annual biomass and nutrient dynamics, showed that there are no clear seasonal or spatial differences within low or mid-high marshes, but clearly separates J...
January 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28106491/effect-of-an-mg132-sustained-drug-delivery-capsular-ring-on-the-inhibition-of-posterior-capsule-opacification-in-a-rabbit-model
#14
Xuan Bao, Min Hou, Yingyan Qin, Furong Luo, Fu Shang, Mingxing Wu
PURPOSE: To design an MG132-sustained drug delivery capsular ring (SDDCR) and investigate its effect on the inhibition of posterior capsule opacification (PCO) in a rabbit model. METHODS: The SDDCRs were prepared by forming a slice of film made by the mixture of poly lactic-co-glycolic acid (PLGA) and MG132 on the surface of capsular tension rings (CTRs). The drug-loading capacity, entrapment efficiency, and in vitro release of the drug-containing film were detected...
January 20, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28102088/hyperandrogenism-in-a-postmenopausal-woman-a-rare-case-of-ectopic-adrenal-cortical-gland
#15
Antonella Guarino, Luisa Di Benedetto, Valentina Giovanale, Gian Luca Rampioni Vinciguerra, Antonella Stoppacciaro, Filippo Bellati, Donatella Caserta
Most frequent causes of androgenic manifestation are Cushing's syndrome, PCO, benign and malignant androgen-secreting non adrenal tumors and iatrogenic hirsutism. Hyperplasia or neoplasms of ectopic adrenocortical gland are rare. We report a case of a 63-year old female with hirsutism and alopecia. Laboratory data highlighted increased levels of androgens. Diagnostic imaging revealed normal morphology of adrenocortical gland and ovaries. In view of the clinical picture and suspected diagnosis of extra-adrenal cause, she underwent bilateral salpingo-oophorectomy...
January 19, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28101040/high-rate-of-early-posterior-capsule-opacification-following-femtosecond-laser-assisted-cataract-surgery
#16
Benjamin Rostami, Jack Tian, Nicholas Jackson, Rustum Karanjia, Kenneth Lu
PURPOSE: To compare the rates of rapid posterior capsule opacification (PCO) formation in the first 3 months following femtosecond laser-assisted cataract surgery (FLACS) to manual anterior capsulorhexis. METHODS: Retrospective review of 29 cases of FLACS, comparing the rates of PCO in the first 3 months following surgery to 50 consecutive cases of manual anterior capsulorhexis. RESULTS: Seven of the 29 FLACS cases developed PCO requiring capsulotomy at 3 months, while none of the control cases required a capsulotomy over the same time period (p < 0...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28100360/-end-tidal-pco-2-for-evaluation-of-severity-of-disease-in-idiopathic-pulmonary-arterial-hypertension-and-chronic-thromboembolic-pulmonary-hypertension
#17
X Shi, G L Yang, Y Chen, J Guo, W L Yang, P Yuan, S G Gong, R Jiang, Q H Zhao, L Wang, J He, T X Chen, J M Liu
Objective: To explore the difference in end tidal PCO(2) (P(ET)CO(2)) between idiopathic pulmonary arterial hypertension (IPAH) and chronic thromboembolic pulmonary hypertension (CTEPH), and to analyze the correlation between P(ET)CO(2) and the indexes of disease severity in IPAH and CTEPH patients. Methods: Data were retrieved from 68 IPAH patients and 52 CTEPH patients who all had received right-heart catheterization, pulmonary function test and cardiopulmonary exercise testing at Shanghai Pulmonary Hospital from October 2011 to October 2014...
January 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28096456/antibody-conjugated-dna-based-nanocarriers-intercalated-with-doxorubicin-eliminate-myofibroblasts-in-explants-of-human-lens-tissue
#18
Jacquelyn Gerhart, Marvin Greenbaum, Lou Casta, Anthony Clemente, Keith Mathers, Robert Getts, Mindy George-Weinstein
Posterior capsule opacification (PCO) occurs in some adults and most children following cataract surgery. The fibrotic form of PCO arises, in part, from migratory, contractile myofibroblasts that deform the lens capsule and impair vision. In short-term cultures of human anterior lens tissue, myofibroblasts emerge from Myo/Nog cells that are identified with the G8 monoclonal antibody and by their expression of the MyoD transcription factor and bone morphogenetic protein inhibitor noggin. In this study, we tested the hypothesis that targeted depletion of Myo/Nog cells with the G8 mAb conjugated to three-dimensional DNA nanocarriers intercalated with Doxorubicin (G8:3DNA:Dox) would prevent the accumulation of myofibroblasts in long-term, serum and growth factor free cultures of human lens tissue obtained by capsulorhexis...
January 17, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28074798/proseal-laryngeal-mask-airway-as-an-alternative-to-standard-endotracheal-tube-in-securing-upper-airway-in-the-patients-undergoing-beating-heart-coronary-artery-bypass-grafting
#19
Kalpana Shah
BACKGROUND: ProSeal laryngeal mask airways (PLMAs) are routinely used after failed tracheal intubation as airway rescue, facilitating tracheal intubation by acting as a conduit and to secure airway during emergencies. In long duration surgeries, use of endotracheal tube (ETT) is associated with various hemodynamic complications, which are minimally affected during PLMA use. However, except for few studies, there are no significant data available that promote the use of laryngeal mask during cardiac surgery...
January 2017: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/28065623/an-anatomic-investigation-into-the-relationship-between-posterior-condylar-offset-and-posterior-tibial-slope-of-one-thousand-one-hundred-thirty-eight-cadaveric-knees
#20
Douglas S Weinberg, Jeremy J Gebhart, Glenn D Wera
BACKGROUND: Posterior condylar offset (PCO) and posterior tibial slope (PTS) have critical consequences in total knee arthroplasty, especially with regards to sagittal plane balancing. However, there has only been limited investigation into the functional consequences of each, and there have only been anecdotal observations regarding any associations between PCO and PTS. METHODS: In a large osteological study of 1138 knees, standardized measurements of PCO and PTS were taken using previously described techniques on specimens of different age, race, and gender...
December 22, 2016: Journal of Arthroplasty
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