Results 141 to 150 of about 162,801 (331)

A Rare Root Canal Configuration of Maxillary Second Molar: A Case Report

Case Reports in Dentistry, 2012
A thorough knowledge of root canal morphology is a prerequisite for the endodontic therapy. The maxillary molars, especially the second molars, have the most complicated root canal system in permanent dentition.
Gautam P. Badole, Rakesh N. Bahadure, M. M. Warhadpande, Rajesh Kubde   +3 more
doaj   +1 more source

Moving an incisor across the midline: A treatment alternative in an adolescent patient [PDF]

, 2011
A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. Extraction of both teeth became necessary.
Bosio, Jose A, Bradley, T. Gerard, Hefti, Arthur F   +2 more
core   +1 more source

DKK3 Initially Preserves Acinar Integrity Through MEK‐Fos Signaling, but Later Switches to an Oncogenic Role in Pancreatic Cancer

Advanced Science, EarlyView.
In pancreatic cancer, the protein DKK3 is found to play a complex role: it initially slows early tumor growth but later promotes tumor aggressiveness. DKK3 expression evolves during progression and drives cancer severity by orchestrating cellular and molecular signaling pathways.
Dharini Srinivasan, Elodie Roger, Lukas Perkhofer, Eleni Zimmer, Thomas F.E. Barth, Julia P. Mosler, Anna Härle, Stephanie E. Weissinger, Nadine T. Gaisa, Peter Möller, Nico Fischer, Chantal Allgöwer, J.‐Matthias Löhr, Dirk Grimm, Thomas Seufferlein, Stefan Liebau, Ninel Azoitei, Michael K. Melzer, Frank Arnold, Johann Gout, Alexander Kleger   +20 more
wiley   +1 more source

Root canal treatment of mandibular second premolar with four root canals

Saudi Endodontic Journal, 2015
Variation in the morphology of the root canal system of mandibular premolars has been demonstrated. This diverse morphology challenges for the clinician to clean, shape, and fill the entire root canal system. A case report of a mandibular second premolar
Bander Al-Abdulwahhab, Saad Al-Nazhan
doaj   +1 more source

AI‐Assisted Detection of Early Gastric Cancer via Visualization of Mucosal Acidity Compromise During Endoscopy

Advanced Science, EarlyView.
An AI‐assisted SERS system is developed to rapidly and reliably detect early gastric cancer by visualizing gastric mucosal acidity, enhancing endoscopic differentiation, improving guidance for submucosal dissection, and reducing false‐positive diagnoses.
Huihui Yan, Zongkuo Li, Jing Zhao, Lei Su, Ziyi Jin, Weiyi Zhao, Rong Duan, Suhongrui Zhou, Lingling Wang, Jianshan Mao, Xinliang Lu, Weihao Gai, Yang Du, Qin Du, Cheng Fang, Yiming Zhao, Yan You, Jianting Cai, Cong Li   +18 more
wiley   +1 more source

The life cycles of cryptogams [PDF]

, 1991
Meiosis and karyogamy are recognized as control points in the life cycle of cryptogams. The control of meiosis is evidently complex and in yeast, and by analogy in all cryptogams, involves progressive gene activation.
Bell, Peter R.
core   +2 more sources

Construction of a Multitissue Cell Atlas Reveals Cell‐Type‐Specific Regulation of Molecular and Complex Phenotypes in Pigs

Advanced Science, EarlyView.
This research conducts an in‐depth investigation of cell‐type‐specific regulatory mechanisms underlying molecular and complex phenotypes through integrative analysis of multitissue single‐nucleus RNA sequencing, bulk RNA‐seq, and genome‐wide association study (GWAS) data in pigs.
Lijuan Chen, Houcheng Li, Jinyan Teng, Zhen Wang, Xiaolu Qu, Zhe Chen, Xiaodian Cai, Haonan Zeng, Zhonghao Bai, Jinghui Li, Xiangchun Pan, Leyan Yan, Fei Wang, Lin Lin, Yonglun Luo, Goutam Sahana, Mogens Sandø Lund, Maria Ballester, Daniel Crespo‐Piazuelo, Peter Karlskov‐Mortensen, Merete Fredholm, Alex Clop, Marcel Amills, Crystal Loving, Christopher K. Tuggle, Ole Madsen, Jiaqi Li, Zhe Zhang, George E. Liu, Jicai Jiang, Lingzhao Fang, Guoqiang Yi   +31 more
wiley   +1 more source

Root Canal Morphology of the Mandibular First Premolars in a Yucatecan Population Using Cone Beam Computed Tomography: An in vitro Study [PDF]

, 2018
Elma María Vega Lizama, Vera Tiesler, Julio Roberto Chi-Keb, Marco Ramírez-Salomón, Armando Hernández-Mejía, Andrea Cucina   +5 more
openalex   +1 more source

Outcomes of pulpectomy in the primary dentition and age-related morphological changes in the root canal of primary molars: A retrospective study [PDF]

, 2021
Guili Dou, Bin Xia, Junxia Zhu, Dandan Wang, Yijiao Zhao, Zhipeng Sun, Zhanqiang Cao   +6 more
openalex   +1 more source

Plant Virus‐Induced Inheritable Apoptosis Drives Reproductive Costs in Female Insect Vectors to Balance Viral Biparental Transmission

Advanced Science, EarlyView.
Rice gall dwarf virus (RGDV), transmitted biparentally by leafhopper vector to their offspring, exploits the capsid protein to induce inheritable ovarian apoptosis via insulin‐driven PI3K/AKT/FoxO signaling axis. This mechanism enhances infection but reduces female reproductive fitness, causing inefficient maternal transmission.
Haibo Wu, Wenqiang Wan, Qingquan Liang, Hengsong Yang, Chengcong Lu, Taiyun Wei, Qian Chen   +6 more
wiley   +1 more source