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https://www.readbyqxmd.com/read/28432469/renal-findings-in-patients-with-mulibrey-nanism
#1
Johanna Sivunen, Susann Karlberg, Jouko Lohi, Niklas Karlberg, Marita Lipsanen-Nyman, Hannu Jalanko
BACKGROUND: Mulibrey nanism (MUL) is a rare inherited disease caused by genetic defects affecting peroxisomal TRIM37 protein. MUL affects multiple organs, leading to growth retardation and early onset type 2 diabetes. We aimed to characterize the structure and function of kidneys and the urinary tract in a large cohort of Finnish MUL patients. METHODS: Ultrasound, magnetic resonance imaging (MRI), and autopsy findings of the kidneys and urinary tract from 101 MUL patients were retrospectively analyzed...
April 22, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28431798/absence-of-myoepithelial-cells-correlates-with-invasion-and-metastasis-of-carcinoma-ex-pleomorphic-adenoma
#2
P Ye, Y Gao, T Wei, G-Y Yu, X Peng
Myoepithelial cells (MECs) are implicated in the development and progression of human salivary gland tumours. Here, we investigate the potential role for MECs in invasion and metastasis of carcinoma ex pleomorphic adenoma (CXPA). Tumour tissues from 40 CXPA patients diagnosed between 1960 and 2014 were obtained. Patient samples were divided into two groups (non-invasive tumours, n=10; and frankly invasive tumours, n=30). Each group was further divided into two subgroups (metastatic tumours and non-metastatic tumours)...
April 18, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28429670/expression-of-dominant-negative-k6w-ubiquitin-in-the-lens-epithelium-via-an-adenoviral-vector-delays-posterior-capsule-opacification-in-a-rabbit-model
#3
Xuan Bao, Min Hou, Ruiping Peng, Furong Luo, Mingxing Wu
PURPOSE: Ubiquitin is involved in cell proliferation and differentiation, and the objective of this study is to investigate the potential of dominant negative Ubiquitin (Ub) with a lysine to tryptophan mutation at the 6 position (K6W) through an adenoviral expression vector in the prevention of posterior capsule opacification (PCO) in a rabbit PCO model. METHODS: Recombinant dominant negative K6W-Ub adenovirus (RAd-K6W-Ub) with green fluorescent protein (RAd-K6W-Ub/GFP) and RAd-GFP viruses (control) were generated with QBI-HEK 293A cells...
March 31, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28428963/quercetin-inhibits-pulmonary-arterial-endothelial-cell-transdifferentiation-possibly-by-akt-and-erk1-2-pathways
#4
Shian Huang, Xiulong Zhu, Wenjun Huang, Yuan He, Lingpin Pang, Xiaozhong Lan, Xiaorong Shui, Yanfang Chen, Can Chen, Wei Lei
This study aimed to investigate the effects and mechanisms of quercetin on pulmonary arterial endothelial cell (PAEC) transdifferentiation into smooth muscle-like cells. TGF-β1-induced PAEC transdifferentiation models were applied to evaluate the pharmacological actions of quercetin. PAEC proliferation was detected with CCK8 method and BurdU immunocytochemistry. Meanwhile, the identification and transdifferentiation of PAECs were determined by FVIII immunofluorescence staining and α-SMA protein expression...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28428640/transforming-growth-factor-%C3%AE-plays-an-important-role-in-enhancing-wound-healing-by-topical-application-of-povidone-iodine
#5
Li Wang, Wenhan Qin, Yaying Zhou, Bin Chen, Xiaoqing Zhao, Hailin Zhao, Emma Mi, Ella Mi, Qingmei Wang, Jiaolin Ning
Povidone-iodine (PVI) is principally used as an antimicrobial agent. It has been found that 0.5% PVI can attenuate congestion, edema and pain induced by pressure sores. Thus this study aimed to assess the effects of 0.5% PVI on acute skin wounds. Four full-thickness excisional wounds were generated on the dorsal skin of male Sprague-Dawley rats with a 10-mm sterile punch. Two wounds were left untreated and the other two were dressed with gauze with 0.5% PVI for 1 hour per day for the first 5 days after injury...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28427970/structured-evaluation-of-glioma-patients-by-an-occupational-therapist-is-our-clinical-examination-enough
#6
Christian Franz Freyschlag, Johannes Kerschbaumer, Daniel Pinggera, Gabriele Bacher, Claudius Thomé
BACKGROUND: Preservation of neurological function is mandatory when offering a surgical intervention to patients with low-grade gliomas (LGG), given that the goal of any treatment is the patient's return to their normal everyday life. OBJECTIVE: To determine whether a structured evaluation by an occupational therapist can reveal deficits that might be overseen in routine clinical examination of patients with a surgically treated LGG. METHODS: 20 patients with radiographically suspected LGG have been examined in a standardized fashion at three stages: pre-, postoperatively and three months thereafter...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28427365/association-between-fc%C3%AE-receptor-iia-iiia-and-iiib-genetic-polymorphisms-and-susceptibility-to-severe-malaria-anemia-in-children-in-western-kenya
#7
Elly O Munde, Winnie A Okeyo, Evans Raballah, Samuel B Anyona, Tom Were, John M Ong'echa, Douglas J Perkins, Collins Ouma
BACKGROUND: Naturally-acquired immunity to Plasmodium falciparum malaria develops after several episodes of infection. Fc gamma receptors (FcγRs) bind to immunoglobulin G (IgG) antibodies and mediate phagocytosis of opsonized microbes, thereby, linking humoral and cellular immunity. FcγR polymorphisms influence binding affinity to IgGs and consequently, can influence clinical malaria outcomes. Specifically, variations in FcγRIIA -131Arg/His, FcγRIIIA-176F/V and FcγRIIIB-NA1/NA2 modulate immune responses through altered binding preferences to IgGs and immune complexes...
April 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28427357/haplotype-of-non-synonymous-mutations-within-il-23r-is-associated-with-susceptibility-to-severe-malaria-anemia-in-a-p-falciparum-holoendemic-transmission-area-of-kenya
#8
Elly O Munde, Evans Raballah, Winnie A Okeyo, John M Ong'echa, Douglas J Perkins, Collins Ouma
BACKGROUND: Improved understanding of the molecular mechanisms involved in pediatric severe malarial anemia (SMA) pathogenesis is a crucial step in the design of novel therapeutics. Identification of host genetic susceptibility factors in immune regulatory genes offers an important tool for deciphering malaria pathogenesis. The IL-23/IL-17 immune pathway is important for both immunity and erythropoiesis via its effects through IL-23 receptors (IL-23R). However, the impact of IL-23R variants on SMA has not been fully elucidated...
April 20, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28426727/cd4-t-cell-expression-of-ifn-%C3%AE-and-il-17-in-pediatric-malarial-anemia
#9
Evans Raballah, Prakasha Kempaiah, Zachary Karim, George O Orinda, Michael F Otieno, Douglas J Perkins, John Michael Ong'echa
In Plasmodium falciparum holoendemic transmission regions of western Kenya, life-threatening pediatric malaria manifests primarily as severe malarial anemia (SMA, Hb≤6.0 g/dL with any density parasitemia). To determine the role that CD4+ T-cell-driven inflammatory responses have in the pathogenesis of SMA, peripheral CD4+ T-cell populations and their intracellular production of pro-inflammatory cytokines (IFN-γ and IL-17) were characterized in children aged 12-36 months of age stratified into two groups: non-severe malarial anemia (non-SMA, Hb≥6...
2017: PloS One
https://www.readbyqxmd.com/read/28426667/bioenergetic-status-modulates-motor-neuron-vulnerability-and-pathogenesis-in-a-zebrafish-model-of-spinal-muscular-atrophy
#10
Penelope J Boyd, Wen-Yo Tu, Hannah K Shorrock, Ewout J N Groen, Roderick N Carter, Rachael A Powis, Sophie R Thomson, Derek Thomson, Laura C Graham, Anna A L Motyl, Thomas M Wishart, J Robin Highley, Nicholas M Morton, Thomas Becker, Catherina G Becker, Paul R Heath, Thomas H Gillingwater
Degeneration and loss of lower motor neurons is the major pathological hallmark of spinal muscular atrophy (SMA), resulting from low levels of ubiquitously-expressed survival motor neuron (SMN) protein. One remarkable, yet unresolved, feature of SMA is that not all motor neurons are equally affected, with some populations displaying a robust resistance to the disease. Here, we demonstrate that selective vulnerability of distinct motor neuron pools arises from fundamental modifications to their basal molecular profiles...
April 20, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28425258/assessment-of-developmental-and-radiological-long-term-outcomeof-children-with-surgically-treated-midgut-volvulus
#11
Ahmet Murat Çakmak, Özlem Boybeyi Türer, Gülnur Göllü Bahadir, Bilge Türedi, Ufuk Ateş, Adalet Elçin Yildiz, Gönül Küçük, Ömer Suat Fitöz, Betül Ulukol, Mustafa Kemal Aslan, Tutku Soyer, Hüseyin Dindar
BACKGROUND/AIM: The aim is to evaluate the long-term outcome of asymptomatic patients who underwent surgical correction for midgut volvulus. MATERIALS AND METHODS: Seven patients managed surgically for midgut volvulus in the last 3 years were included. Demographic features, symptoms at presentation, diagnoses, surgical procedures, and complications were recorded. Patients were then contacted for follow-up and evaluation of long-term outcomes. General physical conditions, anthropometric parameters, feeding habits, and defecation histories were evaluated...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424456/paraquat-poisoning-induced-pulmonary-epithelial-mesenchymal-transition-through-notch1-pathway
#12
Tiegang Li, Xiangming Yang, Shiyu Xin, Yan Cao, Nana Wang
Progressive pulmonary fibrosis is the most characteristic feature of subacute PQ poisoning. Epithelial-to-mesenchymal transition (EMT) is reported to be involved in the pulmonary fibrosis after PQ exposure. Recent evidence suggested Notch signaling is required for EMT. In this study, we investigated whether Notch1 and TGF-β1/Smad3 signaling was involved in EMT caused by PQ. It is demonstrated that A549 cells underwent EMT after treated with PQ at dose of 300 μmol/L for 6 days, charactered by increasing expression of mesenchymal marker α-SMA and decreasing expression of epithelial marker E-cadherin...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28420433/umbilical-cord-derived-mesenchymal-stem-cells-on-scaffolds-facilitate-collagen-degradation-via-upregulation-of-mmp-9-in-rat-uterine-scars
#13
Lu Xu, Lijun Ding, Lei Wang, Yun Cao, Hui Zhu, Jingjie Lu, Xin'an Li, Tianran Song, Yali Hu, Jianwu Dai
BACKGROUND: Severe injuries of the uterus may trigger uterine scar formation, ultimately leading to infertility or obstetrical complications. To date, few methods have adequately solved the problem of collagen deposition in uterine scars. Umbilical cord-derived mesenchymal stem cells (UC-MSCs) have shown great promise in clinical applications. The objective of this study was to investigate the effect of a scaffold/UC-MSCs construct on collagen degradation and functional regeneration in rat uterine scars following full-thickness excision of uterine walls...
April 18, 2017: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/28420213/folate-decorated-nanomicelles-loaded-with-a-potent-curcumin-analogue-for-targeting-retinoblastoma
#14
Hashem Alsaab, Rami M Alzhrani, Prashant Kesharwani, Samaresh Sau, Sai Hs Boddu, Arun K Iyer
The aim of this study was to develop a novel folate receptor-targeted drug delivery system for retinoblastoma cells using a promising anticancer agent, curcumin-difluorinated (CDF), loaded in polymeric micelles. Folic acid was used as a targeting moiety to enhance the targeting and bioavailability of CDF. For this purpose, amphiphilic poly(styrene-co-maleic acid)-conjugated-folic acid (SMA-FA) was synthesized and utilized to improve the aqueous solubility of a highly hydrophobic, but very potent anticancer compound, CDF, and its targeted delivery to folate overexpressing cancers...
April 18, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/28419687/skeletal-muscle-analyses-agreement-between-non-contrast-and-contrast-ct-scan-measurements-of-skeletal-muscle-area-and-mean-muscle-attenuation
#15
Anne van der Werf, Ingeborg M Dekker, Martijn R Meijerink, Nicolette J Wierdsma, Marian A E de van der Schueren, Jacqueline A E Langius
Low skeletal muscle area (SMA) and muscle radiation attenuation (MRA) have been associated with poor prognosis in various patient populations. Both non-contrast and contrast CT scans are used to determine SMA and MRA. The effect of the use of a contrast agent on SMA and MRA is unknown. Therefore, we investigated agreement between these two scan options. SMA and MRA of 41 healthy individuals were analysed on a paired non-contrast and contrast single CT scan, and agreement between paired scan results was assessed with use of Bland-Altman plots, intraclass correlation coefficients (ICCs), standard error of measurements (SEM) and smallest detectable differences at a 95% confidence level (SDD95 )...
April 16, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28418044/design-of-liquid-crystals-with-de-vries-like-properties-structural-variants-of-carbosilane-terminated-5-phenylpyrimidine-mesogens
#16
Christopher P J Schubert, Carsten Müller, Andreas Bogner, Frank Giesselmann, Robert P Lemieux
Structural variants of the 'de Vries-like' mesogen 5-[4-(12,12,14,14,16,16-hexamethyl-12,14,16-trisilaheptadecyloxy)phenyl]-2-hexyloxypyrimidine (QL16-6), including two isomers with branched iso-tricarbosilane end-groups, were synthesized and their mesomorphic and 'de Vries-like' properties were characterized by polarized optical microscopy, differential scanning calorimetry, small angle and 2D X-ray scattering techniques. A comparative analysis of isomers with linear and branched tricarbosilane end-groups shows that they exhibit comparable mesomorphic and 'de Vries-like' properties...
April 18, 2017: Soft Matter
https://www.readbyqxmd.com/read/28417005/reversibility-of-vasalgel%C3%A2-male-contraceptive-in-a-rabbit-model
#17
Donald Waller, David Bolick, Elaine Lissner, Christopher Premanandan, Gary Gamerman
BACKGROUND: Development of a non-hormonal long-acting reversible contraceptive for men could have a significant impact on reducing unintended pregnancies. Vasalgel™ is a high molecular weight polymer consisting of styrene-alt-maleic acid (SMA) dissolved in dimethyl sulfoxide being developed as a reversible male contraceptive device. It forms a hydrogel when implanted into the vasa deferentia, which prevents the passage of sperm. Previous studies in the rabbit have proven its efficacy, durability and rapid onset...
2017: Basic and Clinical Andrology
https://www.readbyqxmd.com/read/28415704/maternal-exposure-to-di-n-butyl-phthalate-dbp-induces-renal-fibrosis-in-adult-rat-offspring
#18
Yi-Ping Zhu, Lei Chen, Xing-Jie Wang, Qi-Heng Jiang, Xiao-Yu Bei, Wen-Lan Sun, Shu-Jie Xia, Jun-Tao Jiang
This study was to determine the impact of maternal exposure to di-n-butyl phthalate (DBP) on renal development and fibrosis in adult offspring. Pregnant rats received DBP at a dose of 850 mg/kg BW/day by oral perfusion during gestational days 14-18. In DBP exposed newborn offspring, gross observation and histopathological examination revealed the dysplasia of kidney. The expression of genes related to renal development was also changed. In DBP exposed adult offspring, histopathological examination and Masson's trichrome staining revealed the pathological changes of renal fibrosis...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415624/hypoxia-inducible-factor-1a-induces-phenotype-switch-of-human-aortic-vascular-smooth-muscle-cell-through-pi3k-akt-aeg-1-signaling
#19
Kai Liu, Changcun Fang, Yuwen Shen, Zhengqin Liu, Min Zhang, Bingbing Ma, Xinyan Pang
To date, hypoxia-inducible factor 1a (HIF-1a) and astrocyte elevated gene-1 (AEG-1) have been involved in the proliferation, migration and morphological changes of vascular smooth muscle cells. However, the potential relationship of HIF-1a-AEG-1 pathway in human aortic smooth muscle cell (HASMC) has not been reported. In the present study, in-vitro assays were utilized to explore the potential impact of HIF-1a-AEG-1 signaling on HASMC phenotype. Here, we found that HIF-1a expression was up-regulated in the media of thoracic aortic dissection tissues as compared with normal aortic tissues, and was associated with increased apoptotic SMCs and decreased AEG-1 expression...
March 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415229/phase-behavior-and-characterization-of-heptamethyltrisiloxane-based-de-vries-smectic-liquid-crystal-by-electro-optics-x-rays-and-dielectric-spectroscopy
#20
S P Sreenilayam, D M Agra-Kooijman, V P Panov, V Swaminathan, J K Vij, Yu P Panarin, A Kocot, A Panov, D Rodriguez-Lojo, P J Stevenson, Michael R Fisch, Satyendra Kumar
A heptamethyltrisiloxane liquid crystal (LC) exhibiting I-SmA^{*}-SmC^{*} phases has been characterized by calorimetry, polarizing microscopy, x-ray diffraction, electro-optics, and dielectric spectroscopy. Observations of a large electroclinic effect, a large increase in the birefringence (Δn) with electric field, a low shrinkage in the layer thickness (∼1.75%) at 20 °C below the SmA^{*}-SmC^{*} transition, and low values of the reduction factor (∼0.40) suggest that the SmA^{*} phase in this material is of the de Vries type...
March 2017: Physical Review. E
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