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https://www.readbyqxmd.com/read/28636235/stem-cell-based-tooth-and-periodontal-regeneration
#1
Lei Hu, Yi Liu, Songlin Wang
Currently regeneration of tooth and periodontal damage still remains great challenge. Stem cell-based tissue engineering raised novel therapeutic strategies for tooth and periodontal repair. Stem cells for tooth and periodontal regeneration include dental pulp stem cells (DPSCs), periodontal ligament stem cells (PDLSCs), stem cells from the dental apical papilla (SCAPs), and stem cells from human exfoliated deciduous teeth (SHEDs), dental follicle stem cells (DFSCs), dental epithelial stem cells (DESCs), bone marrow mesenchymal stem cells (BMMSCs), adipose-derived stem cells (ADSCs), embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs)...
June 21, 2017: Oral Diseases
https://www.readbyqxmd.com/read/28633596/laparotomy-site-implantation-metastasis-of-carcinoma-of-the-papilla-of-vater
#2
Milan Radojkovic, Jasmina Gligorijevic, Miroslav Stojanovic, Goran Stanojevic, Ivan Ilic
Introduction Carcinomas of the papilla of Vater make up a heterogeneous group of tumours arising from different types of epithelium. Regional lymph nodes, liver and lungs are the primary sites of metastatic progression of these tumours. Case presentation We present a patient with an abdominal incision site metastasis of low-grade (mixed type) adenocarcinoma of the papilla of Vater one year after pylorus-preserving pancreaticoduodenectomy. Implantation metastasis of low-grade ampullary carcinoma in the laparotomy wound after open Whipple's procedure is unusual...
January 1, 2017: Scottish Medical Journal
https://www.readbyqxmd.com/read/28631836/medaka-extended-one-generation-reproduction-test-meogrt-evaluating-4-nonylphenol
#3
Haruna Watanabe, Yoshifumi Horie, Hitomi Takanobu, Masaaki Koshio, Taisen Iguchi, Norihisa Tatarazako
The Medaka Extended One-Generation Test (MEOGRT) was developed as a multi-generational toxicity test for chemicals, particularly endocrine disrupting chemicals. Briefly, 3 generations of Japanese medaka (Oryzias latipes) are exposed to a chemical over a 20-week period: 3-week in the parental generation (F0), 15-week in the first generation (F1), and 2-week in the second generation (F2). The present study reports the first MEOGRT results concerning branched isomer mixtures of 4-nonylphenol (NP). Adult F0 medaka exposed to NP at 5 actual concentrations (1...
June 20, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28629676/percutaneous-nephrolithotomy-puncture-and-tract-dilation-evidence-on-the-safety-of-approaches-to-the-infundibulum-of-the-middle-renal-calyx
#4
Panagiotis Kallidonis, Christina Kalogeropoulou, Iason Kyriazis, Dimitrios Apostolopoulos, Panagiotis Kitrou, Dimitrios Kotsiris, Panteleimon Ntasiotis, Evangelos Liatsikos
OBJECTIVES: To investigate the anatomical relations of the papillary, infundibular and pelvic approach to percutaneous nephrolithotomy (PCNL) and evaluate the amount of vascularization at the respective sites. MATERIALS: (99m)Tc-dimercaptosuccinic acid SPECT/CT renal scintigraphies or Computerized tomographies perfusion (CTP) were performed in 40 patients (prone n=20 or supine position n=20). The angle of approach (AoA) for access tracts the respective regions of interest (ROIs) to the mid-calyceal papilla and infundibulum as well as renal pelvis were designed and compared...
June 16, 2017: Urology
https://www.readbyqxmd.com/read/28627680/bmp%C3%A2-7-suppresses-excessive-scar-formation-by-activating-the-bmp%C3%A2-7-smad1-5-8-signaling-pathway
#5
Jingdong Guo, Quan Lin, Ying Shao, Li Rong, Duo Zhang
Scarring is the inevitable consequence of wound repair, which may cause significant physical and mental pain to patients when excessive. Bone morphogenetic protein‑7 (BMP‑7) has been proved to inhibit TGF‑β‑induced fibrosis in various tissues including dermal papilla cells. However, the effect of BMP‑7 on hypertrophic scarring, a common proliferative disorder of dermal fibroblasts, has not been determined. To overcome this problem, the present study established a mouse model of thermal injury to investigate the inhibitory effects of BMP‑7 on scar formation...
June 14, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28626371/carcinoma-of-the-papilla-of-vater-after-diversion-operation-for-pancreaticobiliary-maljunction
#6
Takahiro Yamanaka, Kenichiro Araki, Norihiro Ishii, Mariko Tsukagoshi, Takamichi Igarashi, Akira Watanabe, Norio Kubo, Hiroyuki Kuwano, Ken Shirabe
Pancreaticobiliary maljunction (PBM) is a congenital malformation that is associated with biliary cancer development. When patients are diagnosed with PBM, a diversion operation is recommended. Although a risk remains for developing residual bile duct carcinoma following diversion, the development of a carcinoma of the ampulla of Vater after a diversion operation for PBM is rare. We present a treated case of carcinoma of the ampulla of Vater after a diversion operation for PBM. A 65-year-old woman presented with abdominal pain...
May 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28617877/degenerate-intraductal-papillary-mucinous-carcinoma-with-fish-mouth-appearance-of-the-papilla
#7
Armando Peixoto, Pedro Moutinho-Ribeiro, Guilherme Macedo
No abstract text is available yet for this article.
June 2017: Journal of Gastrointestinal and Liver Diseases: JGLD
https://www.readbyqxmd.com/read/28616405/endoscopic-treatment-for-distal-malignant-biliary-obstruction
#8
REVIEW
Kazuya Matsumoto, Yohei Takeda, Takumi Onoyama, Soichiro Kawata, Hiroki Kurumi, Hiroki Koda, Taro Yamashita, Hajime Isomoto
Distal malignant biliary obstruction (MBO) leads to obstructive jaundice as a result of when the bile excretion from the liver is disturbed and induces hepatic failure and sepsis, which when complicated with cholangitis, it becomes necessary to perform drainage for the MBO. For biliary drainage, we can perform a surgical bypass operation, percutaneous transhepatic biliary drainage (PTBD), endoscopic biliary drainage (EBD) via duodenal papilla, or endoscopic ultrasound (EUS)-guided biliary drainage (EUS-BD), which is a transgastrointestinal biliary drainage...
April 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28616151/therapeutic-potential-of-dental-stem-cells
#9
REVIEW
Elna Paul Chalisserry, Seung Yun Nam, Sang Hyug Park, Sukumaran Anil
Stem cell biology has become an important field in regenerative medicine and tissue engineering therapy since the discovery and characterization of mesenchymal stem cells. Stem cell populations have also been isolated from human dental tissues, including dental pulp stem cells, stem cells from human exfoliated deciduous teeth, stem cells from apical papilla, dental follicle progenitor cells, and periodontal ligament stem cells. Dental stem cells are relatively easily obtainable and exhibit high plasticity and multipotential capabilities...
January 2017: Journal of Tissue Engineering
https://www.readbyqxmd.com/read/28614175/efficacy-of-the-laparoendoscopic-rendezvous-to-treat-cholecystocholedocholithiasis-in-210-consecutive-patients-a-single-center-experience
#10
Gaetano La Greca, Antonio Pesce, Marco Vitale, Maurizio Mannino, Federica Di Marco, Michele Di Blasi, Rosario Lombardo, Stefano Puleo, Domenico Russello, Saverio Latteri
OBJECTIVE: The simultaneous laparoendoscopic "rendezvous" (LERV) represents an alternative to sequential or totally laparoscopic approaches for patients affected by cholecystocholedocholithiasis. The aim of this study was to analyze the results in a large series of 210 consecutive patients. MATERIALS AND METHODS: From 2002 to 2016 all patients affected by cholecystocholedocholithiasis were treated with a standardized "tailored" LERV. The relevant technical features of the procedure were recorded...
June 13, 2017: Surgical Laparoscopy, Endoscopy & Percutaneous Techniques
https://www.readbyqxmd.com/read/28610335/rhigonema-naylae-n-sp-rhigonematomorpha-rhigonematidae-a-new-parasitic-nematode-from-a-japanese-polydesmid-millipede-polydesmida-xystodesmidae
#11
Jans Morffe, Koichi Hasegawa
Rhigonema naylae n. sp. (Rhigonematomorpha: Rhigonematidae) is described from the hindgut of the polydesmid millipede Parafontaria laminata (Attems, 1909) (Polydesmida: Xystodesmidae), from Aichi prefecture, Japan. The new species is characterized by having a medium sized body in both sexes, the cephalic collar partially fused to the body cuticle, but not overhanging the body contour; cervical region densely covered in short, fine microtrichs that extend from the posterior margin of the cephalic collar to ca...
May 22, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610318/two-new-species-of-trimma-pisces-gobiidae-from-fiji-south-western-pacific-ocean
#12
Richard Winterbottom
Two new species of Trimma are described from Fiji. Trimma bathum n. sp. lacks scales on the cheeks, opercle and predorsal midline, has 18-19 unbranched pectoral fin rays, an unbranched 5th pelvic fin ray that is 40-56% the length of the 4th ray, 17-18 gill rakers on the outer surface of the first gill arch, a U-shaped interorbital and a narrow slit-like postorbital trench, a low, median fleshy ridge extending half-way towards the orbit from the origin of the first dorsal fin, and, when freshly collected, a pink head and body with most body scales having an orange-brown spot or short bar at their centres...
May 24, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610128/review-of-i-pennella-i-oken-1816-copepoda-pennellidae-with-a-description-of-i-pennella-i-i-benzi-i-sp-nov-a-parasite-of-escolar-i-lepidocybium-i-i-flavobrunneum-i-pisces-in-the-northwest-atlantic-ocean
#13
W E Hogans
The genus Pennella Oken, 1816, mesoparasitic copepods from marine fish and mammals, is reviewed with the objective of determining the validity of members of the genus. Details of the external morphological structures of the adult female are presented. Pennella species are differentiated based on a combination of characters: the type of host parasitized, overall length of the parasite, shape, size and configuration of cephalothoracic papillae, segmentation of the first and second antenna, holdfast horn number, shape and configuration, and structure of the abdominal plumes...
March 17, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610058/a-new-species-of-i-aplectana-i-nematoda-cosmocercidae-parasite-of-i-pleurodema-i-i-nebulosum-i-anura-leptodactylidae-from-the-monte-desert-argentina-with-a-key-to-neotropical-species-of-the-genus-i-aplectana-i
#14
Mauricio D Piñeiro Gomez, Cynthya E González, Eduardo A Sanabria
Here we describe a new cosmocercid nematode, Aplectana nebulosa sp. nov., from the small and large intestines of Pleurodema nebulosum (Anura: Leptodactylidae), from the Monte desert of San Juan, Argentina. The new species belongs to the Aplectana group that possesses a gubernaculum and unpaired adcloacal papilla anteriorly to cloaca. It resembles A. membranosa, A. paraelenae and A. travassosi by the presence of four adcloacal papillae, but differs from those species by the following characters: number and arrangement of precloacal papillae; number and arrangement of postcloacal papillae; shape and size of spicules and gubernaculum, and by the presence of lateral alae in caudal region of males...
March 27, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610011/two-new-species-of-free-living-marine-nematodes-of-the-family-oxystominidae-chitwood-1935-enoplida-with-a-review-of-the-genus-i-thalassoalaimus-i-de-man-1893-from-the-argentine-coast
#15
Antonela Martelli, Virginia Lo Russo, Gabriela Villares, Catalina T Pastor DE Ward
Two new free-living marine nematodes of the family Oxystominidae are described from San Antonio Bay (Río Negro) and San José Gulf (Chubut). Litinium australis sp. n., is characterized by having a rounded tail, by the first and second crown of cephalic setae with different lengths, gubernaculum with apophysis and by the presence of at least four precloacal papillae; Thalassoalaimus nestori sp. n., is characterized by having a conical tail, cephalic setae equal in length, gubernaculum with rounded and dorso-caudally directed apophysis and two precloacal papillae...
April 6, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610001/a-new-species-of-i-buenia-i-teleostei-gobiidae-from-the-western-mediterranean-sea-with-the-description-of-this-genus
#16
Marcelo Kovačić, Frances Ordines, Ulrich K Schliewen
A new miniature gobiid species, Buenia massutii sp. nov. (Teleostei: Gobiidae) is described from the circalittoral bottom off the Balearic Islands, western Mediterranean. Phylogenetic analysis of the mitochondrial COI-barcoding fragment supports its species-level distinctiveness and the monophyly of the genus Buenia. A description and diagnosis of the genus Buenia is for the first time provided. Material of the new species was collected in 57-67 m depth from beam trawl samples carried out on red algae beds...
April 7, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609975/-i-sternaspis-i-i-chilensis-i-n-sp-a-new-species-from-austral-chilean-channels-and-fjords-annelida-sternaspidae
#17
Oscar Díaz-Díaz, Nicolás Rozbaczylo
Sternaspis chilensis n. sp. is described based on specimens collected in channels and fjords of southern Chile and previously identified as Sternaspis scutata (Ranzani, 1817), originally described from the Meditarrean Sea. Sternaspis chilensis n. sp. is described based on the features of the shield with anterior margins rounded and anterior depression shallow; marginal shield chaetal fascicles arranged with an inverted C-shaped pattern; and distribution of the integument papillae. Sternaspis chilensis is widely distributed in the Magellan Province from Estero Reloncaví (41°32'54"S, 72°19'48"W) to Strait of Magellan (53°34'S, 70°04'W), between 50 and 515 m depth...
April 12, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609882/bythaelurus-vivaldii-a-new-deep-water-catshark-carcharhiniformes-scyliorhinidae-from-the-northwestern-indian-ocean-off-somalia
#18
Simon Weigmann, Carina Julia Kaschner
A new very small deep-water catshark, Bythaelurus vivaldii, is described based on two female specimens caught off Somalia in the northwestern Indian Ocean during the German 'Valdivia' expedition in 1899. It is morphologically closest to the recently described B. bachi, which is the only other Bythaelurus species in the western Indian Ocean that shares a stout body of large specimens and the presence of oral papillae. It further resembles B. vivaldii in the broad mouth and broad posterior head, but differs in the presence of composite oral papillae and a higher diversity in dermal denticle morphology...
May 8, 2017: Zootaxa
https://www.readbyqxmd.com/read/28607842/relating-form-to-function-in-the-hummingbird-feeding-apparatus
#19
Alejandro Rico-Guevara
A complete understanding of the feeding structures is fundamental in order to study how animals survive. Some birds use long and protrusible tongues as the main tool to collect their central caloric source (e.g., woodpeckers and nectarivores). Hummingbirds are the oldest and most diverse clade of nectarivorous vertebrates, being a perfect subject to study tongue specializations. Their tongue functions to intraorally transport arthropods through their long bills and enables them to exploit the nectarivorous niche by collecting small amounts of liquid, therefore it is of vital importance to study its anatomy and structure at various scales...
2017: PeerJ
https://www.readbyqxmd.com/read/28605223/homeobox-c10-inhibits-the-osteogenic-differentiation-potential-of-mesenchymal-stem-cells
#20
Guoqing Li, Nannan Han, Haoqing Yang, Liping Wang, Xiao Lin, Shu Diao, Juan Du, Rui Dong, Songlin Wang, Zhipeng Fan
PURPOSE: Mesenchymal stem cells (MSCs) are a reliable cell source for tissue regeneration. However, the molecular mechanisms underlying the directed differentiation of MSCs remain unclear which impedes potential clinical applications. Recent studies have discovered that HOX genes are involved in the differentiation regulation of MSCs and bone formation. In this study, we investigate the HOXC10 function in the osteogenic differentiation potential of MSCs. MATERIALS AND METHODS: Stem cells from apical papilla (SCAPs) and adipose-derived stem cells (ADSCs) were used in this study...
June 12, 2017: Connective Tissue Research
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