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https://www.readbyqxmd.com/read/29353148/light-and-electron-microscopic-observations-on-the-organization-of-skin-and-associated-glands-of-two-caecilian-amphibians-from-western-ghats-of-india
#1
Arun Damodaran, Beyo Reston Saroja, Ramachandran Kotharambath, Akbarsha Mohammad Abdulkader, Oommen V Oommen, Divya Lekha
We adopted light and electron microscopy to understand the structure of the skin of two species of caecilians, Ichthyophis tricolor and Uraeotyphlus cf. oxyurus, from Western Ghats of Kerala, India. The surface of the skin of these caecilians contains an irregular pattern of microridges. Oval, round and polymorphic glandular openings are randomly distributed all over the skin surface. Most of the openings are funnel shaped. The epithelial cells along the rim of the opening descend into the tunnel of the duct...
January 9, 2018: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/29353141/vitrification-of-testicular-tissue-from-prepubertal-cats-in-cryotubes-using-different-cryoprotectant-associations
#2
David Baruc Cruvinel Lima, Ticiana Franco Pereira da Silva, Annice Aquino-Cortez, Johanna Leiva-Revilla, Lúcia Daniel Machado da Silva
Protocols for the cryopreservation of testicular tissue are not yet established. In cats, few studies have been conducted on testicular vitrification using different cryoprotectant associations (CPAs). Thus, the objective of this study was to compare the effect of different CPAs on the vitrification of testicular tissue from prepubertal cats in cryotubes. We used 10 pairs of testicles, with each pair divided into 8 fragments that were distributed into different experimental groups. Two of these fragments were allocated into the control group (CG) and the other six were distributed according to the CPAs to be tested (dimethyl sulfoxide (DMSO)/glycerol (GLY), ethylene glycol (EG)/GLY, or DMSO/EG)...
January 5, 2018: Theriogenology
https://www.readbyqxmd.com/read/29353080/atlantic-salmon-adapted-to-seawater-for-9-weeks-develop-a-robust-immune-response-to-salmonid-alphavirus-upon-bath-challenge
#3
L J Moore, J Jarungsriapisit, T O Nilsen, S Stefansson, G L Taranger, C J Secombes, H C Morton, S Patel
Pancreas disease (PD) caused by salmonid alphavirus (SAV) is the most serious viral disease in Norwegian aquaculture. Study of the immune response to SAV will aid preventative measures including vaccine development. The innate immune response was studied in Atlantic salmon infected by either bath immersion (BI) or by intra-muscular (i.m.) injection (IM) with SAV subtype 3, two and nine weeks after seawater transfer (Phases A and B respectively). Phase A results have been previously published (Moore et al., 2017) and Phase B results are presented here together with a comparison of results achieved in Phase A...
January 15, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29352747/clathrin-and-ap1-are-required-for-apical-sorting-of-gpi-aps-in-biosynthetic-and-recycling-routes-in-mdck-cells
#4
Guillaume Alain Castillon, Patricia Burriat-Couleru, Daniel Abegg, Nina Criado Santos, Reika Watanabe
Recently studies in animal models demonstrate potential roles for clathrin and AP1 in apical protein sorting in epithelial tissue. However, the precise functions of these proteins in apical protein transport remain unclear. Here, we reveal mis-targeting of endogenous GPI-APs and soluble secretory proteins in MDCK cells upon clathrin heavy chain or AP1 subunit knockdown (KD). Using a novel directional endocytosis and recycling assay, we found that these KD cells are not only affected for apical sorting of GPI-APs in biosynthetic pathway but also for their apical recycling and basal to apical transcytosis routes...
January 20, 2018: Traffic
https://www.readbyqxmd.com/read/29352424/cannabinoid-cb1-and-cb2%C3%A2-receptors-and-monoacylglycerol-lipase-gene-expression-alterations-in-the-basal-ganglia-of-patients-with-parkinson-s-disease
#5
Francisco Navarrete, M Salud García-Gutiérrez, Auxiliadora Aracil-Fernández, José L Lanciego, Jorge Manzanares
Previous studies suggest that the endocannabinoid system plays an important role in the neuropathological basis of Parkinson's disease (PD). This study was designed to detect potential alterations in the cannabinoid receptors CB1 (CB1r) and CB2 (A isoform, CB2Ar), and in monoacylglycerol lipase (MAGL) gene expression in the substantia nigra (SN) and putamen (PUT) of patients with PD. Immunohistochemical studies were performed to identify precise CB2r cellular localization in the SN of control and PD patients...
January 19, 2018: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29351938/unusual-skin-mass-primary-cutaneous-mucinous-carcinoma
#6
Hussnain Javaid, Naeem Raza, Urwa Ejaz, Tariq Sarfraz
Primary mucinous carcinoma of the skin is a rare malignant tumour of sweat gland origin. Diagnostic concerns include its deceptively benign appearance in some cases and the difficulty in differentiating it from secondary mucinous carcinoma of skin metastasising from a primary source elsewhere. A case of a 75-year-old man is reported who presented with a slowly growing painless mass near the lateral canthus of the right eye for about 2 years. Clinically, a diagnosis of basal cell carcinoma was made whereas histopathology revealed mucinous carcinoma of the skin...
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29351731/a-chelicerate-specific-burst-of-nonclassical-dscam-diversity
#7
Guozheng Cao, Yang Shi, Jian Zhang, Hongru Ma, Shouqing Hou, Haiyang Dong, Weiling Hong, Shuo Chen, Hao Li, Yandan Wu, Pengjuan Guo, Xu Shao, Bingbing Xu, Feng Shi, Yijun Meng, Yongfeng Jin
BACKGROUND: The immunoglobulin (Ig) superfamily receptor Down syndrome cell adhesion molecule (Dscam) gene can generate tens of thousands of isoforms via alternative splicing, which is essential for both nervous and immune systems in insects. However, further information is required to develop a comprehensive view of Dscam diversification across the broad spectrum of Chelicerata clades, a basal branch of arthropods and the second largest group of terrestrial animals. RESULTS: In this study, a genome-wide comprehensive analysis of Dscam genes across Chelicerata species revealed a burst of nonclassical Dscams, categorised into four types-mDscam, sDscamα, sDscamβ, and sDscamγ-based on their size and structure...
January 19, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29351708/eyelid-reconstruction-pediculated-versus-non-pediculated
#8
Sonja Frimmel, Christoph Kniestedt, Karla Chaloupka
BACKGROUND: To compare the functional and cosmetic outcome of pediculated versus free anterior and posterior lamella reconstruction after large eyelid defects due to malignancy excision. PATIENTS AND METHODS: A retrospective study over 2 years with 12 patients matching the criterion of pediculated versus non-pediculated transplants out of a cohort of 124 tumor excisions. The mean age was 76 ± 8 years of the 7 male and 5 female patients. In the majority of cases, more than half of the eyelid was excised...
January 19, 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29351410/hypoxia-selectively-upregulates-cation-channels-and-increases-cytosolic-ca2-in-pulmonary-but-not-coronary-arterial-smooth-muscle-cells
#9
Xi He, Shanshan Song, Ramon J Ayon, Angela Balisterieri, Stephen M Black, Ayako Makino, W Gil Wier, Wei-Jin Zang, Jason X-J Yuan
Ca2+ signaling, particularly the mechanism via store-operated Ca2+ entry (SOCE) and receptor-operated Ca2+ entry (ROCE), plays a critical role in the development of acute hypoxia-induced pulmonary vasoconstriction and chronic hypoxia-induced pulmonary hypertension. This study aimed to test the hypothesis that chronic hypoxia differentially regulates the expression of proteins that mediate SOCE and ROCE (STIM, Orai, and TRPC6) in pulmonary (PASMC) and coronary (CASMC) artery smooth muscle cells. The resting cytosolic [Ca2+] ([Ca2+]cyt) and the stored [Ca2+] in the sarcoplasmic reticulum (SR) were not different in CASMC and PASMC...
January 3, 2018: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29351018/the-behavior-and-reproductive-physiology-of-a-solitary-progressive-provisioning-vespid-wasp-evidence-for-a-solitary-cycle-origin-of-reproductive-castes
#10
Hans C Kelstrup, Klaus Hartfelder, Tiago Falcon Lopes, Theresa C Wossler
The emergence of queens and workers from solitary antecedents mark a major evolutionary transition in the history of life. The solitary progressive provisioning wasp Synagris cornuta, a member of the subfamily Eumeninae (basal to eusocial vespid wasps), alternates between behavioral states characterized as queenlike and worker-like. Akin to a queen in eusocial wasps, a S. cornuta female initiates construction of a cell into which she oviposits and then, similar to a worker, cares for the brood as it develops...
February 2018: American Naturalist
https://www.readbyqxmd.com/read/29350877/effects-of-human-rhinovirus-on-epithelial-barrier-integrity-and-function-in-children-with-asthma
#11
Kevin Looi, Alysia G Buckley, Paul J Rigby, Luke W Garratt, Thomas Iosifidis, Graeme R Zosky, Alexander N Larcombe, Francis J Lannigan, Kak-Ming Ling, Kelly M Martinovich, Elizabeth Kicic-Starcevich, Nicole C Shaw, Erika N Sutanto, Darryl A Knight, Anthony Kicic, Stephen M Stick
BACKGROUND: Bronchial epithelial tight junctions (TJ) have been extensively assessed in healthy airway epithelium. However, no studies have yet assessed the effect of human rhinovirus (HRV) infection on the expression and resultant barrier function in epithelial tight junctions (TJ) in childhood asthma. OBJECTIVES: To investigate the impact of HRV infection on airway epithelial TJ expression and barrier function in airway epithelial cells (AEC) of children with and without asthma...
January 19, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29350750/the-hepatoprotective-effect-of-selenium-enriched-yeast-and-gum-arabic-combination-on-carbon-tetrachloride-induced-chronic-liver-injury-in-rats
#12
Mohammed Hamid, Yassin Abdulrahim, Dandan Liu, Gang Qian, Alamzeb Khan, Kehe Huang
The antioxidant and anti-inflammatory effects of selenium-enriched yeast (SY) and Gum Arabic (GA) have been reported. This study aimed to determine the hepatoprotective effect of SY and GA combination on carbon tetrachloride (CCl4 )-induced chronic liver injury in rats and to explore their synergistic mechanisms of action. Forty adult male Wistar rats randomly allotted to 5 groups: (A) worked as control, (B) was administered CCl4 , (C-E) were fed daily by GA, SY, and GA+SY respectively after mixing with basal diet, following CCl4 -intoxication...
January 19, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29350614/lipg-signaling-promotes-tumor-initiation-and-metastasis-of-human-basal-like-triple-negative-breast-cancer
#13
Pang-Kuo Lo, Yuan Yao, Ji Shin Lee, Yongshu Zhang, Weiliang Huang, Maureen A Kane, Qun Zhou
Current understanding of aggressive human basal-like triple-negative breast cancer (TNBC) remains incomplete. In this study, we show endothelial lipase (LIPG) is aberrantly overexpressed in basal-like TNBCs. We demonstrate that LIPG is required for in vivo tumorigenicity and metastasis of TNBC cells. LIPG possesses a lipase-dependent function that supports cancer cell proliferation and a lipase-independent function that promotes invasiveness, stemness and basal/epithelial-mesenchymal transition features of TNBC...
January 19, 2018: ELife
https://www.readbyqxmd.com/read/29350451/morphological-specializations-of-the-epidermis-of-an-angler-catfish-chaca-chaca-siluriformes-chacidae-in-relation-to-its-ecological-niche-a-scanning-electron-microscopic-investigation
#14
Arup Mistri, Usha Kumari, Swati Mittal, Ajay Kumar Mittal
The present work was undertaken with the aim to deduce morphological adaptations in skin of an angler catfish Chaca chaca by means of scanning electron microscopy. The fish is nocturnal, bottom dwelling, sluggish, ambush predator, lives in sand, mud, or soft substrates often buried and camouflaged for protection and to feed. The surface of the epidermis is covered with polygonal epithelial cells, each having surface relief of microridges forming intricate patterns. In between epithelial cells irregularly distributed mucous cell openings, randomly distributed epidermal specialized structures, taste buds, and neuromasts are discernible...
January 19, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29350397/the-burden-of-non-melanoma-skin-cancers-in-auckland-new-zealand
#15
Ashwini Pondicherry, Richard Martin, Ineke Meredith, Jack Rolfe, Patrick Emanuel, Mark Elwood
BACKGROUND/OBJECTIVES: As the New Zealand Cancer Registry does not require mandatory reporting of non-melanoma skin cancers (NMSC), basal cell carcinomas (BCC) and squamous cell carcinomas (SCC), the clinical burden of these diseases is unknown. METHODS: A retrospective review of all patients with histopathology performed allowed us to estimate invasive BCC and SCC in the Auckland region in 2008 (population 1.44 million). RESULTS: During this period, a total of 21 236 NMSC were diagnosed among 13 996 patients, consisting of 5611 SCC lesions (26%) and 15 525 (74%) BCC...
January 19, 2018: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/29350308/the-ppar%C3%AE-agonist-efatutazone-delays-invasive-progression-and-induces-differentiation-of-ductal-carcinoma-in-situ
#16
Virginie Ory, William B Kietzman, Jacob Boeckelman, Bhaskar V Kallakury, Anton Wellstein, Priscilla A Furth, Anna T Riegel
PURPOSE: Ductal carcinoma in situ (DCIS) is a pre-invasive lesion of the breast considered a precursor of invasive ductal carcinoma. This study aimed to determine whether activated PPARγ acts as a tumor suppressor in human DCIS progression. METHODS: We utilized the high-affinity PPARγ agonist, efatutazone, to activate endogenous PPARγ in a well-defined model for the progression of basal (triple negative) DCIS, MCFDCIS cells, cultured under 2D and 3D conditions...
January 19, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29350066/differential-expression-of-cytokeratin-14-and-18-in-bladder-cancer-tumorigenesis
#17
Yun-Peng Li, Xiao-Peng Jia, Yu-Qing Jiang, Wei Wang, Yun-Liang Wang, Xiu-Li Wang, Yue-Xian Guo
It has been previously suggested that cytokeratins (CKs) are important diagnostic and prognostic biomarkers for urothelial lesions. Hence it is imperative to understand the expression pattern of cytokeratins during formation of papillary bladder cancer, which was the objective of the current study. Expression pattern of CK14 and CK18 were examined using immunohistochemical staining in a mice model of papillary bladder cancer. Twenty female mice were divided into two groups-group 1 (NT) and group 2, which received N-butyl- N-(4-hydroxybutyl) nitrosamine (BBN) for 20 weeks plus one week without treatment...
January 1, 2018: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29349770/retrospective-audit-of-patients-referred-for-further-treatment-following-mohs-surgery-for-non-melanoma-skin-cancer
#18
Edmund Wee, Michelle S Goh, Vanessa Estall, Albert Tiong, Angela Webb, Catherine Mitchell, William Murray, Phillip Tran, Christopher J McCormack, Michael Henderson, Emma L Hiscutt
BACKGROUND/OBJECTIVES: To describe the characteristics, subsequent management and outcomes of patients referred for further management following Mohs micrographic surgery (MMS) for basal cell carcinoma (BCC) and squamous cell carcinoma (SCC). METHODS: Retrospective analysis of patients referred to a quaternary cancer centre from 2000 to 2015. RESULTS: In total, 83 lesions in 82 patients were referred for further management; 52 (62%) were SCC and 80 (96%) were located in the head and neck...
January 18, 2018: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/29349673/pharmacological-dissection-of-the-cellular-mechanisms-associated-to-the-spontaneous-and-the-mechanically-stimulated-atp-release-by-mesentery-endothelial-cells-roles-of-thrombin-and-trpv
#19
M Verónica Donoso, Felipe Hernández, Tania Villalón, Claudio Acuña-Castillo, J Pablo Huidobro-Toro
Endothelial cells participate in extracellular ATP release elicited by mechanosensors. To characterize the dynamic interactions between mechanical and chemical factors that modulate ATP secretion by the endothelium, we assessed and compared the mechanisms participating in the spontaneous (basal) and mechanically stimulated secretion using primary cultures of rat mesentery endothelial cells. ATP/metabolites were determined in the cell media prior to (basal) and after cell media displacement or a picospritzer buffer puff used as mechanical stimuli...
January 19, 2018: Purinergic Signalling
https://www.readbyqxmd.com/read/29349583/enhanced-production-of-phenolic-acids-in-cell-suspension-culture-of-salvia-leriifolia-benth-using-growth-regulators-and-sucrose
#20
Masoomeh Modarres, Sedigheh Esmaeilzadeh Bahabadi, Mohammad Ehsan Taghavizadeh Yazdi
Salvia leriifolia Benth. (Lamiaceae) is an endangered medicinal plant with hypoglycemic, anti-inflammatory and analgesic properties. Many of the beneficial effects of Salvia spp. are attributed to the phenolic compounds. In the present study, an efficient procedure has been developed for establishment of cell suspension culture of S. leriifolia as a strategy to obtain an in vitro phenolic acids producing cell line for the first time. The effect of growth regulators and various concentrations of sucrose have been analyzed, to optimize biomass growth and phenolic acids production...
January 18, 2018: Cytotechnology
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