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https://www.readbyqxmd.com/read/28446005/cardioprotective-effects-of-wharton-jelly-derived-mesenchymal-stem-cell-transplantation-in-a-rodent-model-of-myocardial-injury
#1
Taghrid Gaafar, Wael Attia, Shereen Mahmoud, Dina Sabry, Osama Abdel Aziz, Dina Rasheed, Hala Hamza
Background: Whartons jelly-derived mesenchymal stem cells are a valuable alternative source that possess multipotent properties, easy to obtain and available in large scale compared to BMMSCs. We investigated the possibility of cardiac function improvement post isoproterenol induced cardiac injury in a rat model following human WJMSCs transplantation. Materials and Methods: MSCs were extracted and cultured from cord WJ, characterized by morphology, Immunophenotyping and differentiation to osteoblast and adipocytes...
April 30, 2017: International Journal of Stem Cells
https://www.readbyqxmd.com/read/28445164/simple-and-scalable-preparation-of-master-mold-for-nanoimprint-lithography
#2
Yuri Yamada, Kota Ito, Atsushi Miura, Hideo Iizuka, Hiroaki Wakayama
Nanoimprint lithography (NIL) is one of the most prominent bottom-up techniques for duplicating nanostructures with a high throughput. However, fabrication of starting master mold commonly requires expensive equipment of top-down techniques, or additional steps to transfer the fabricated patterns from bottom-up methods. Here we demonstrate that a SiO2 nanostructure manufactured from a self-assembled block copolymer, polystyrene-b-polydimethylsiloxane (PS-b-PDMS), directly serves as a master mold for NIL without further modification...
May 19, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28445089/genetic-and-morphological-differentiation-of-the-semiterrestrial-crab-armases-angustipes-brachyura-sesarmidae-along-the-brazilian-coast
#3
Murilo Zanetti Marochi, Setuko Masunari, Christoph D Schubart
The genetic and morphometric population structures of the semiterrestrial crab Armases angustipes from along the Brazilian coast were examined. The influence of the Central South Equatorial Current on larval dispersal of A. angustipes also was evaluated. Six populations were sampled from estuarine areas in São Luis do Maranhão, Maranhão; Natal, Rio Grande do Norte; Maceió, Alagoas; Ilhéus, Bahia; Aracruz, Espírito Santo; and Guaratuba, Paraná. Patterns of genetic differentiation were assessed using DNA sequence data corresponding to parts of the mitochondrial cytochrome c oxidase subunit 1...
February 2017: Biological Bulletin
https://www.readbyqxmd.com/read/28444795/systematics-and-molecular-phylogeny-of-the-ciliate-genus-pseudokeronopsis-ciliophora-hypotrichia
#4
Ju Li, Zifeng Zhan, Kuidong Xu
A still challenging study on ciliate systematics is to clarify the taxonomic and phylogenetic confusions of the fascinating pigmented Pseudokeronopsis species because of their high inter-specific similarities. We evaluated the identities and internal relationships within Pseudokeronopsis based on morphological descriptions in combination with the 18S and ITS-5.8S rDNA genetic distances, ITS2 secondary structures and phylogenetic analyses. Results showed that (1) Pseudokeronopsis pararubra, a species ever synonymized as Pseudokeronopsis carnea, is a valid species; (2) most Chinese populations identified as Pseudokeronopsis rubra represent a new species namely Pseudokeronopsis songi sp...
April 26, 2017: Journal of Eukaryotic Microbiology
https://www.readbyqxmd.com/read/28444787/finger-pressure-adjustments-to-various-object-configurations-during-precision-grip-in-humans-and-monkeys
#5
Riccardo Viaro, Banty Tia, Gino Coudé, Rosario Canto, Andriy Oliynyk, Paola Salmas, Lorenzo Masia, Giulio Sandini, Luciano Fadiga
In this study we recorded the pressure exerted onto an object by the index finger and the thumb of the preferred hand of eighteen human subjects and either hand of two macaque monkeys during a precision grasping task. The to-be-grasped object was a custom-made device composed by two plates which could be variably oriented by a motorized system while keeping constant the size and thus grip dimension. The to-be-grasped plates were covered by an array of capacitive sensors to measure specific features of finger adaptation, namely pressure intensity and centroid location and displacement...
April 26, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28444636/modulatory-effects-of-perineuronal-oligodendrocytes-on-neuronal-activity-in-the-rat-hippocampus
#6
Yoshihiko Yamazaki, Yasukazu Hozumi, Kenya Kaneko, Satoshi Fujii
Action potentials are fundamental to relaying information from region to region in the nervous system. Changes in action potential firing patterns in neural circuits influence how the brain processes information. In our previous study, we focused on interneuron/perineuronal astrocyte pairs in the hippocampal CA1 region and reported that direct depolarization of perineuronal astrocytes modulated the firing pattern of interneurons. In the current study, we investigated the morphological and electrophysiological properties of perineuronal oligodendrocytes, and examined their modulatory effects on interneuronal firing in the CA1 region...
April 25, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28444415/-conventional-radiological-diagnosis-of-benign-none-neoplasms
#7
A Bücker, G Schneider
BACKGROUND: Benign bone tumors are of special clinical importance because they might be confused with malignant bone tumors. OBJECTIVES: The aim of this article it to present the characteristics of benign bone tumors. The focus is orientated towards conventional x‑ray as the essential pillar for primary diagnosis. Consequently, the description of signal intensities of benign bone tumors in magnetic resonance images or less helpful clues like male-female ratios are deliberately omitted...
April 25, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28443501/testicular-dysfunction-is-a-common-feature-in-men-with-type2-diabetes-mellitus-in-a-nigerian-tertiary-hospital
#8
Onung Samuel Inih, Young Ekenechukwu Esther, Fasanmade Olufemi Adetola, Anyanwu Anthony Chinedu, Nwatu Chidinma Brenda, Ohwovoriole Augustine Efedaye
BACKGROUND: Hypogonadism in male patients with diabetes mellitus is associated with older age, obesity and poor glycaemic control. The patterns of sperm count, testicular volume, sperm motility and morphology have also been reported to be abnormal in these patients, though reports are conflicting. The objectives of this study were to assess gonadal function and sperm parameters in Nigerian males with diabetes mellitus. METHODS: A study sample of 150 males consisting of 108 patients and 56 age-matched controls were recruited...
April 25, 2017: Current Diabetes Reviews
https://www.readbyqxmd.com/read/28443149/inverted-urothelial-papilloma-a-review-of-diagnostic-pitfalls-and-clinical-management
#9
REVIEW
Mary K Sweeney, Soroush Rais-Bahrami, Jennifer Gordetsky
Inverted urothelial papilloma (IUP) is a rare, non-invasive endophytic lesion that accounts for 1-2% of urothelial tumours. On cystoscopy, IUP appears as a pedunculated/papillary mass with a smooth surface. On microscopy, IUP has an endophytic growth pattern with the bulk of the tumour covered by a superficial layer of urothelium, which can be hyperplastic or attenuated. The cytology should be bland, with uniform, spindled cells arranged in anastomosing trabeculae and cords with peripheral palisading of basaloid cells...
January 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28443127/transcriptome-analysis-of-a-female-sterile-mutant-fsm-in-chinese-cabbage-brassica-campestris-ssp-pekinensis
#10
Shengnan Huang, Zhiyong Liu, Chengyu Li, Runpeng Yao, Danyang Li, Li Hou, Xiang Li, Wenjie Liu, Hui Feng
Female-sterile mutants are ideal materials for studying pistil development in plants. Here, we identified a female-sterile mutant fsm in Chinese cabbage. This mutant, which exhibited stable inheritance, was derived from Chinese cabbage DH line 'FT' using a combination of isolated microspore culture and ethyl methanesulfonate mutagenesis. Compared with the wild-type line 'FT,' the fsm plants exhibited pistil abortion, and floral organs were also relatively smaller. Genetic analysis indicated that the phenotype of fsm is controlled by a single recessive nuclear gene...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28443068/evaluation-of-the-probiotic-strain-bifidobacterium-longum-subsp-infantis-cect-7210-capacities-to-improve-health-status-and-fight-digestive-pathogens-in-a-piglet-model
#11
Emili Barba-Vidal, Lorena Castillejos, Paola López-Colom, Montserrat Rivero Urgell, José A Moreno Muñoz, Susana M Martín-Orúe
Probiotics have been demonstrated to be useful to enhance gut health and prevent gastrointestinal infections. The objective of this study is to demonstrate the potential of the probiotic strain Bifidobacterium longum subsp. infantis CECT 7210 (B. infantis IM1) to prevent and fight intestinal disease by using a Salmonella Typhimurium (Trial 1) or an enterotoxigenic Escherichia coli K88 (Trial 2) oral challenge in a weaning piglet model. Seventy-two piglets were used in each trial. After an adaptation period, animals were orally challenged...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28442880/trichoscopic-patterns-in-squamous-cell-carcinoma-a-case-report
#12
Balachandra S Ankad, Mahajabeen Madarkar, Gourishetty Saipriya, Punit S Sakhare, Vijay D Dombale
Squamous cell carcinoma (SCC) is the second most cutaneous malignancy after basal cell carcinoma (BCC) with increasing incidence. In the view its nodular manifestation; it can appear similar to nodular BCC, atypical fibroxanthoma, sclerosing liposarcoma and desmoplastic melanoma. Prognostic and therapeutic implications are different in all these conditions and thus their distinction becomes important. Trichoscopy is a simple and non-invasive technique to visualize certain morphological features of skin lesions and it improves the diagnostic accuracy for melanocytic and nonmelanocytic pigmented lesions...
October 2016: International Journal of Trichology
https://www.readbyqxmd.com/read/28442776/mir-301b-mir-130b-ppar%C3%AE-axis-underlies-the-adipogenic-capacity-of-mesenchymal-stem-cells-with-different-tissue-origins
#13
Lulu Liu, Haihui Liu, Mingtai Chen, Saisai Ren, Panpan Cheng, Hao Zhang
Mesenchymal stem cells (MSCs) have been widely used in regenerative medicine and cellular therapy due to their multi-lineage differentiation potential and immunomodulatory function. The applicability of MSCs also depends on their cellular sources and in vivo functions. Here in this study, we systematically compared the morphologic characteristics, immunophenotypes and the adipogenic differentiation of MSCs derived from umbilical cord (UC), adipose tissue (Ad) and bone marrow (BM). We found that the three tissues-derived MSCs displayed decreased adipogenic capacity in the order: Ad-MSC > BM-MSC > UC-MSC, and no morphologic and immunophenotypic differences were observed...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28442381/ocular-surface-alkali-injury-damages-meibomian-glands-in-mice
#14
Shin Mizoguchi, Hiroki Iwanishi, Masahide Kokado, Takayoshi Sumioka, Geraint J Parfitt, Yilu Xie, Reiko Arita, Rika Shirakawa, Osamu Yamanaka, Yuka Okada, James V Jester, Shizuya Saika
PURPOSE: To examine effects of alkali injury of the ocular surface on meibomian gland pathology in mice. METHODS: Three μL of 1 N NaOH were applied under general anesthesia to the right eye of 10-week-old BALB/c (n = 54) mice to produce a total ocular surface alkali burn. The meibomian gland morphology was examined at days 1, 2, 5, 10, and 20 by stereomicroscopy and non-contact infrared meibography. Mice were then sacrificed and eyelids processed for histology with hematoxylin-eosin and immunohistochemistry for ELOVL4, PPARγ, myeloperoxidase (a neutrophil marker) and F4/80 macrophage antigen, as well as TUNEL staining...
April 22, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28442046/morphometric-developmental-pattern-of-bovine-handmade-cloned-concepti-in-late-pregnancy
#15
R P C Gerger, F C Zago, E S Ribeiro, S Gaudencio Neto, L T Martins, L H Aguiar, V H V Rodrigues, F H Furlan, I Ortigari, R D Sainz, C L Ferrell, M A Miglino, C E Ambrósio, J L Rodrigues, R Rossetto, F Forell, L R Bertolini, M Bertolini
Cloning procedures often interfere with conceptus growth and life ex utero, in a set of symptoms known as abnormal offspring syndrome (AOS). The aim of the present study was to compare the developmental pattern of in vivo-derived (IVD), IVF-derived and handmade cloning-derived (NT-HMC) Day 225 bovine concepti using established procedures. Pregnancy diagnosis was performed on Day 30 following blastocyst transfer on Day 7. Conceptus morphometry was assessed by ultrasonography on Day 51, and on Day 225 pregnant cows were killed for morphological examination of concepti...
April 2017: Reproduction, Fertility, and Development
https://www.readbyqxmd.com/read/28440661/morphological-features-and-prognostic-significance-of-arid1a-deficient-esophageal-adenocarcinomas
#16
Michael G Drage, Mingkhwan Tippayawong, Agoston T Agoston, Yifan Zheng, Raphael Bueno, Jason L Hornick, Robert D Odze, Amitabh Srivastava
CONTEXT: - The clinicopathologic and prognostic significance of ARID1A mutation in esophageal adenocarcinoma (EAC) is unknown. OBJECTIVE: - To determine the morphological correlates and prognostic significance of ARID1A-deficient EAC. DESIGN: - One hundred twenty cases of primary EAC were evaluated for a predetermined set of histologic features and immunohistochemistry for ARID1A, p53, and MLH1 performed on EAC, as well as adjacent Barrett esophagus and Barrett esophagus-associated dysplasia, when feasible...
April 25, 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/28438703/multilayered-membranes-with-tuned-well-arrays-to-be-used-as-regenerative-patches
#17
Nádia I Martins, Maria P Sousa, Catarina A Custódio, Vânia C Pinto, Paulo J Sousa, Graça Minas, Franck Cleymand, João F Mano
Membranes have been explored as patches in tissue repair and regeneration, most of them presenting a flat geometry or a patterned texture at the nano/micrometer scale. Herein, a new concept of a flexible membrane featuring well arrays forming pore-like environments to accommodate cell culture is proposed. The processing of such membranes using polysaccharides is based on the production of multilayers using the layer-by-layer methodology over a patterned PDMS substrate. The detached multilayered membrane exhibits a layer of open pores at one side and a total thickness of 38 ± 2...
April 21, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28438613/stress-altered-synaptic-plasticity-and-damp-signaling-in-the-hippocampus-pfc-axis-elucidating-the-significance-of-igf-1-igf-1r-camkii%C3%AE-expression-in-neural-changes-associated-with-a-prolonged-exposure-therapy
#18
Olalekan M Ogundele, Philip J Ebenezer, Charles C Lee, Joseph Francis
Traumatic stress patients showed significant improvement in behavior after a prolonged exposure to an unrelated stimulus. This treatment method attempts to promote extinction of the fear memory associated with the initial traumatic experience. However, the subsequent prolonged exposure to such stimulus creates an additional layer of neural stress. Although the mechanism remains unclear, prolonged exposure therapy (PET) likely involve changes in synaptic plasticity, neurotransmitter function and inflammation; especially in parts of the brain concerned with the formation and retrieval of fear memory (Hippocampus and Prefrontal Cortex: PFC)...
April 21, 2017: Neuroscience
https://www.readbyqxmd.com/read/28438518/testicular-spermatogenesis-and-sperm-morphology-in-martarega-bentoi-heteroptera-notonectidae
#19
Ademária M Novais, Glenda Dias, José Lino-Neto
The testicular, spermatogenesis and sperm morphology of the backswimmer Martarega bentoi was described using light and transmission electron microscopy. In this species, a pair of testes, two deferent ducts, two different pairs of accessory glands, and an ejaculatory duct form the male reproductive system. Each testis consists of two testicular follicles, which are arranged side by side in snail shape. The follicles are filled with cysts at different stages of spermatogenesis, but in the same cyst the germ cells (up to 64) are in the same stage...
April 21, 2017: Arthropod Structure & Development
https://www.readbyqxmd.com/read/28438206/exogenous-gene-transfer-of-rab-3-8-small-gtpase-ameliorates-aberrant-lung-surfactant-homeostasis-in-ruby-rats
#20
Kazuhiro Osanai, Keisuke Nakase, Takashi Sakuma, Kazuaki Nishiki, Masafumi Nojiri, Ryo Kato, Masatoshi Saito, Yuki Fujimoto, Shiro Mizuno, Hirohisa Toga
BACKGROUND: Rab(3)8 small GTPase regulates intracellular transport in melanocytes and alveolar type II epithelial cells. Ruby rats carrying Rab(3)8 and other gene mutations exhibit oculocutaneous albinism, bleeding diathesis, and hence, are a rat model of human Hermansky-Pudlak syndrome (HPS). We previously showed that Long Evans Cinnamon (LEC) rats, one strain of the Ruby rats, developed aberrant lung surfactant homeostasis with remarkably enlarged lamellar bodies in alveolar type II cells...
April 24, 2017: Respiratory Research
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