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White spot

Felipe Alonso, Guillermo E Terán, Gastón Aguilera, Oldřich Říčan, Jorge Casciotta, Wilson Sebastián Serra, Adriana Almirón, Mauricio F Benítez, Ignacio García, Juan Marcos Mirande
Gymnogeophagus jaryi, new species, is described from Southern tributaries of the Middle Paraná basin in Misiones. It can be distinguished from all other members of the genus, except from G. australis and G. caaguazuensis, by the presence of a hyaline to grey anterior portion of the dorsal fin. Gymnogeophagus jaryi differs from G. caaguazuensis by a longer caudal peduncle, caudal fin not lyrate, central portion of scales on dorsal portion of trunk light iridescent blue and by white spots in soft portion of dorsal fin in adult males, and from G...
2019: PloS One
Peggy Rachel Cyr, Leigh Pemberton Johnson
No abstract text is available yet for this article.
January 2019: Cutis; Cutaneous Medicine for the Practitioner
Wei Huang, Valentin Gfeller, Matthias Erb
Volatile organic compounds (VOCs) emitted by plant roots can influence the germination and growth of neighboring plants. However, little is known about the effects of root VOCs on plant-herbivore interactions of neighboring plants. The spotted knapweed (Centaurea stoebe) constitutively releases high amounts of sesquiterpenes into the rhizosphere. Here, we examine the impact of C. stoebe root VOCs on primary and secondary metabolites of sympatric Taraxacum officinale plants and the resulting plant-mediated effects on a generalist root herbivore, the white grub Melolontha melolontha...
February 12, 2019: Plant, Cell & Environment
Miriam F Cooperband, Jacob Wickham, Kaitlin Cleary, Sven-Erik Spichiger, Longwa Zhang, John Baker, Isaiah Canlas, Nathan Derstine, Daniel Carrillo
The spotted lanternfly, Lycorma delicatula (White), is an invasive phloem feeder recently introduced into North America that attacks a broad range of woody plants. When feeding in large numbers, they can seriously damage or kill a tree. Their preferred host is the invasive tree-of-heaven, Ailanthus altissima Swingle (Sapindales: Simaroubaceae), but they are serious pests of grape, Vitis vinifera L. (Vitales: Vitaceae) and a number of other commercially important host plants. Volatile collections were conducted on tree-of-heaven and grape, and the most abundant compounds from these plants present in samples and indicated in the literature were tested for attraction in the laboratory and field...
February 10, 2019: Journal of Economic Entomology
Nan Jiang, Xiaoyi Pan, Zemao Gu, Wenzhi Liu, Kaige Si, Yong Zhou, Yongze Zhou, Liwen Zhai, Yuding Fan, Lingbing Zeng
The replication profile of white spot syndrome virus (WSSV) in crayfish, Procambarus clarkii, at different water temperature was investigated in this study. The WSSV detections were negative at 15 ± 1°C, and the natural infection ratio increased at 19 ± 1°C (24.2% ± 2.25%), reached 100% at 25 ± 1°C and decreased at 30 ± 1°C (93.2% ± 3.37%). The WSSV genome copies number was much higher at 25 ± 1°C (≥5 × 106.45 ± 0.35 /mg) than at 15 ± 1°C (≤5 × 101.13 ± 0.12 /mg), 19 ± 1°C (≤5 × 102...
February 11, 2019: Journal of Fish Diseases
Jéssica M P Pereira, Emília N V de Souza, Jéssica R B Candido, Márcia D A Dantas, Allan R D Nunes, Karina Ribeiro, Dárlio I A Teixeira, Daniel C F Lanza
White spot syndrome virus (WSSV) is one of the major challenges faced by global shrimp farming in recent decades. The characterization of WSSV genetic variability has been used to determine viral dispersion and is a promising method to determine the association between genotype and virulence. The major variable regions that have been used as markers to differentiate the WSSV genomes include the VNTR loci inside ORF94, ORF75, ORF125, and insertions/deletions interspersing ORF14/15 and ORF23/24. The primers used to amplify these regions were described at least 10 years ago, but some of them do not work efficiently to identify new WSSV variants...
February 6, 2019: Journal of Invertebrate Pathology
Yinghan Wang, Shuli Li, Chunying Li
Vitiligo is an autoimmune cutaneous disease in which melanocytes are destroyed by CD8⁺ T cells resulting in disfiguring white spots. From the very beginning of the disease, oxidative stress plays a significant role in promoting the onset of vitiligo, as noted by many studies. Multiple factors lead to the overproduction of reactive oxygen species (ROS), and collaboratively cause ROS accumulation in vulnerable melanocytes. However, ROS are responsible for melanocyte damage manifested by the level of molecules, organelles, and cells, and the generation of autoantigens, through different pathways related to the dysregulation of melanocytes...
February 6, 2019: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Chung H Kau, Jue Wang, Anna Palombini, Nadia Abou-Kheir, Terpsithea Christou
OBJECTIVES: To determine the effect of Clinpro 5000, Clinpro Tooth Crème, and MI-Paste Plus on the formation of white spot lesions in patients undergoing orthodontic treatment. MATERIALS AND METHODS: Three prospective groups with 40 patients undergoing orthodontic treatment in each group were evaluated (total recruitment = 120 subjects). The selected product was brushed on for 2 minutes twice daily for 4 months. Subjects were reviewed for 4 months on a monthly basis...
February 5, 2019: Angle Orthodontist
Xi Gu, Lin Yang, Deqin Yang, Yuan Gao, Xiaolei Duan, Xin Zhu, He Yuan, Jiyao Li
OBJECTIVE: To compare the esthetic improvement between postorthodontic white-spot lesions (WSLs) treated by resin infiltration and microabrasion for 12 months. MATERIALS AND METHODS: A total of 20 patients with 128 teeth with postorthodontic WSLs were recruited. A simple randomized, split-mouth, positive controlled design was used to allocate patients to resin infiltration or microabrasion groups. The lesion area ratio (R value) was calculated between the area of a WSL and the labial surface of the corresponding tooth based on standardized clinical photographs...
February 5, 2019: Angle Orthodontist
Shotaro Suzuki, Toshifumi Nomura, Toshinari Miyauchi, Masae Takeda, Yasuyuki Fujita, Wataru Nishie, Masashi Akiyama, Akemi Ishida-Yamamoto, Hiroshi Shimizu
Revertant mosaicism is a phenomenon in which pathogenic mutations are rescued by somatic events, representing a form of natural gene therapy. Here, we report on the first evidence for revertant mosaicism in loricrin keratoderma (LK), an autosomal dominant form of ichthyosis caused by mutations in LOR on 1q21.3. We identified two unrelated LK families exhibiting dozens of previously unreported white spots, which increased in both number and size with age. Biopsies of these spots revealed that they had normal histology and that causal LOR mutations were lost...
February 2019: Life science alliance
Kaimin Hui, Qian Ren, Jun Cao
Intestine is not only the nutrients digestion and absorption centers, but also an important place of microbial infection. Therefore, intestine immunity plays a key defense means for the host against the invasion of pathogenic microorganisms. In this study, we use kuruma shrimp (Marsupenaeus japonicus) as a model to study the intestine immune characteristics of shrimp against WSSV through next-generation sequencing technique. A total of 63,458 and 44,350 unigenes were generated from the control sample and the WSSV infection sample, respectively...
February 2019: Veterinary Immunology and Immunopathology
Maria Ângela Lacerda Rangel Esper, Juliana Campos Junqueira, Adjaci Fernandes Uchoa, Eduardo Bresciani, Alessandra Nara de Souza Rastelli, Ricardo Scarparo Navarro, Sérgio Eduardo de Paiva Gonçalves
INTRODUCTION: This study evaluated the efficacy of photodynamic inactivation (PDI) with hematoporphyrin IX (H) and modified hematoporphyrin IX (MH) at 10 μmol/L, using a blue light-emitting diode (LED), fluence of 75 J/cm,2 over planktonic cultures and biofilm of Streptococcus mutans (UA 159). METHODS: Suspensions containing 107 cells/mL were tested under different experimental conditions: a) H and LED (H+L+), b) MH and LED (MH+L+), c) only LED (P-L+), d) only H (H+L-), e) only MH (MH+L-), and f) control group, no LED or photosensitizer treatment (P-L-)...
February 2019: American Journal of Orthodontics and Dentofacial Orthopedics
Amina Rezkallah, Laurent Kodjikian, Amro Abukhashabah, Philippe Denis, Thibaud Mathis
Purpose: To present the case of a patient with a hypertensive choroidopathy and her follow-up using multimodal imaging; and to assess how wide-field swept-source (SS) Optical Coherence Tomography Angiography (OCTA) contributes to detecting the areas of hypoperfusion. Observations: A 25-year-old white woman with terminal renal insufficiency, myopericarditis, and cerebrospinal fluid pressure of 37 mmHg indicating intracranial hypertension, presented with a painless loss of vision in both eyes...
March 2019: American Journal of Ophthalmology Case Reports
Patricia A Fair, Beth Wolf, Natasha D White, Stephen A Arnott, Kurunthachalam Kannan, Rajendiran Karthikraj, John E Vena
Concentrations of 11 PFASs were determined in muscle and whole fish for six species collected from Charleston, South Carolina (SC) for the assessment of potential health risks to humans and wildlife. Across all species and capture locations, total PFAS levels in whole fish were significantly higher than fillets by a factor of two- to three-fold. Mean ∑PFAS concentrations varied from 12.7 to 33.0 ng/g wet weight (ww) in whole fish and 6.2-12.7 ng/g ww in fillets. For individual whole fish, ∑PFASs ranged from 12...
January 15, 2019: Environmental Research
Lia A Thomas
No abstract text is available yet for this article.
January 30, 2019: Academic Psychiatry
Hongying Xu, Ru Jin, Chan Zhang, Yupeng Wu, Xiaohui Wang
Excessive emission of plant nutrients (such as nitrogen and phosphorus) into the water body can induce eutrophication. Therefore, how to control eutrophic water efficiently and economically is very important. In the paper, highly efficient aerobic denitrifying phosphorus removing J16 bacteria was isolated from the activated sludge of an aerobic bioreactor in Taiyuan municipal wastewater treatment plant by using the blue-white spot screening method, an aerobic phosphorus absorption test, nitrate reduction test, nitrogen removal experiments, and plate coating and streaking methods...
December 2018: Water Science and Technology: a Journal of the International Association on Water Pollution Research
Takashi Koike, Takahiro Kanno, Masaaki Karino, Hiroto Tatsumi, Koji Tsunematsu, Sho Odawara, Yoshiki Nariai, Katsumi Hideshima, Joji Sekine
Oral leukoplakia is the most common premalignant or potentially malignant lesion in the oral mucosa. This retrospective study examined 67 lesions from 62 patients with clinical diagnoses of oral leukoplakia who underwent surgical excision in our department from 2015 to 2017. The patients comprised 22 men and 40 women. The most common location of the lesion was the lower gingiva, followed by the tongue, upper gingiva, buccal mucosa, palate, and lip. The most common clinical type was the white-spotted, followed by erythroleukoplakia, hillock, and verrucous types...
December 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Malathi Shekar, Moleyur Nagarajappa Venugopal
White spot syndrome virus (WSSV), is a major viral pathogen affecting the shrimp culture industry worldwide. Studies in understanding the mechanisms of WSSV pathogenicity has led to the identification of The Really Interesting New Gene (RING) finger domains in WSSV encoded proteins that have been shown to function as E3 ligase modulating the host-ubiquitin pathway. In this study, we report two proteins encoded by the WSSV genome to harbor a double zinc finger domain, one each in its N- and C-terminal region...
January 28, 2019: Archives of Virology
Michaël Dougoud, Christian Mazza, Beat Schwaller, László Pecze
Here, we present a theoretical investigation with potential insights on developmental mechanisms. Three biological factors, consisting of two diffusing factors and a cell-autonomous immobile transcription factor are combined with different feedback mechanisms. This results in four different situations or fur patterns. Two of them reproduce classical Turing patterns: (1) regularly spaced spots, (2) labyrinth patterns or straight lines with an initial slope in the activation of the transcription factor. The third situation does not lead to patterns, but results in different homogeneous color tones...
January 28, 2019: Bulletin of Mathematical Biology
Fei Zhu, Baozhen Sun, Ziyan Wang
Relish is a transcription factor and forms an important part of the immune deficiency signaling pathway. In the current study, a Relish homolog was cloned from the hemolymph of Scylla paramamosain using RT-PCR and RACE. The full length cDNA of Relish consists of 4263 base pairs (bp), including a 3552 bp open reading frame encoding a 1184 amino acid protein. The data showed that Relish was highly expressed in the gonad and digestive organs of S. paramamosain. Furthermore, the expression of Relish was up-regulated by infection with white spot syndrome virus (WSSV) or Vibrio alginolyticus...
January 22, 2019: Fish & Shellfish Immunology
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