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Vertebral development

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https://www.readbyqxmd.com/read/28449119/mutations-in-thap11-cause-an-inborn-error-of-cobalamin-metabolism-and-developmental-abnormalities
#1
Anita M Quintana, Hung-Chun Yu, Alison Brebner, Mihaela Pupavac, Elizabeth A Geiger, Abigail Watson, Victoria L Castro, Warren Cheung, Shu-Huang Chen, David Watkins, Tomi Pastinen, Flemming Skovby, Bruce Appel, David S Rosenblatt, Tamim H Shaikh
CblX (MIM309541) is an X-linked recessive disorder characterized by defects in cobalamin (vitamin B12) metabolism and other developmental defects. Mutations in HCFC1, a transcriptional co-regulator which interacts with multiple transcription factors, have been associated with cblX. HCFC1 regulates cobalamin metabolism via the regulation of MMACHC expression through its interaction with THAP11, a THAP domain-containing transcription factor. The HCFC1/THAP11 complex potentially regulates genes involved in diverse cellular functions including cell cycle, proliferation, and transcription...
April 25, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28449072/functions-of-galectins-as-self-non-self-recognition-and-effector-factors
#2
Gerardo R Vasta, Chiguang Feng, Nuria González-Montalbán, Justin Mancini, Lishi Yang, Kelsey Abernathy, Graeme Frost, Cheyenne Palm
Carbohydrate structures on the cell surface encode complex information that through specific recognition by carbohydrate-binding proteins (lectins), modulates interactions between cells, cells and the extracellular matrix, or mediates recognition of potential microbial pathogens. Galectins are a family of ß-galactoside-binding lectins, which are evolutionary conserved and have been identified in most organisms, from fungi to invertebrates and vertebrates, including mammals. Since their discovery in the 1970s, their biological roles, initially understood as limited to recognition of endogenous carbohydrate ligands in embryogenesis and development, have expanded in recent years by the discovery of their roles in tissue repair and regulation of immune homeostasis...
April 25, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28448668/prognostic-indication-of-sarcopenia-for-wound-complication-after-total-laryngectomy
#3
Virginie Achim, Jasper Bash, Alia Mowery, Alexander R Guimaraes, Ryan Li, Josh Schindler, Mark Wax, Peter Andersen, Daniel Clayburgh
Importance: Postoperative wound complications after total laryngectomy (TL) increase hospital stay, costs, and delay adjuvant therapy when indicated. Recently, sarcopenia has been identified as a predictor of postoperative complications in patients undergoing major surgery but has not been assessed in head and neck surgery patients. Objective: To determine the incidence of sarcopenia in patients with squamous cell carcinoma (SCC) undergoing TL and evaluate its association with the development of postoperative wound complications...
April 27, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28448270/a-new-in-vitro-spine-test-rig-to-track-multiple-vertebral-motions-under-physiological-conditions
#4
Agnes Beckmann, Christian Herren, Marion Mundt, Jan Siewe, Philipp Kobbe, Rolf Sobottke, Hans-Christoph Pape, Marcus Stoffel, Bernd Markert
In vitro pure moment spine tests are commonly used to analyse surgical implants in cadaveric models. Most of the tests are performed at room temperature. However, some new dynamic instrumentation devices and soft tissues show temperature-dependent material properties. Therefore, the aim of this study is to develop a new test rig, which allows applying pure moments on lumbar spine specimens in a vapour-filled chamber at body temperature. As no direct sight is given in the vapour-filled closed chamber, a magnetic tracking (MT) system with implantable receivers was used...
April 27, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28447887/cyclopiazonic-acid-is-a-pathogenicity-factor-for-aspergillus-flavus-and-a-promising-target-for-screening-germplasm-for-ear-rot-resistance
#5
Subbaiah C Chalivendra, Catherine DeRobertis, Perng-Kuang Chang, Kenneth E Damann
Aspergillus flavus, an opportunistic pathogen, contaminates maize and other key crops with carcinogenic aflatoxins (AFs). Besides AFs, A. flavus makes many more secondary metabolites (SMs) whose toxicity in insects or vertebrates has been studied. However, the role of SMs in the invasion of plant hosts by A. flavus remains to be investigated. Cyclopiazonic acid (CPA), a neurotoxic SM made by A. flavus, is a nanomolar inhibitor of endoplasmic reticulum calcium ATPases (ECAs) and a potent inducer of cell death in plants...
April 24, 2017: Molecular Plant-microbe Interactions: MPMI
https://www.readbyqxmd.com/read/28447337/reconstructing-the-ancestral-vertebrate-brain
#6
REVIEW
Fumiaki Sugahara, Yasunori Murakami, Juan Pascual-Anaya, Shigeru Kuratani
Highly complicated morphologies and sophisticated functions of vertebrate brains have been established through evolution. However, the origin and early evolutionary history of the brain remain elusive, owing to lack of information regarding the brain architecture of extant and fossil species of jawless vertebrates (agnathans). Comparative analyses of the brain of less studied cyclostomes (only extant agnathan group, consisting of lampreys and hagfish) with the well-known sister group of jawed vertebrates (gnathostomes) are the only tools we have available to illustrate the ancestral architecture of the vertebrate brain...
April 26, 2017: Development, Growth & Differentiation
https://www.readbyqxmd.com/read/28446706/a-sister-of-nanog-regulates-genes-expressed-in-pre-implantation-human-development
#7
Thomas L Dunwell, Peter W H Holland
The NANOG homeobox gene plays a pivotal role in self-renewal and maintenance of pluripotency in human, mouse and other vertebrate embryonic stem cells, and in pluripotent cells of the blastocyst inner cell mass. There is a poorly studied and atypical homeobox locus close to the Nanog gene in some mammals which could conceivably be a cryptic paralogue of NANOG, even though the loci share only 20% homeodomain identity. Here we argue that this gene, NANOGNB (NANOG Neighbour), is an extremely divergent duplicate of NANOG that underwent radical sequence change in the mammalian lineage...
April 2017: Open Biology
https://www.readbyqxmd.com/read/28446689/bone-clarity-clearing-imaging-and-computational-analysis-of-osteoprogenitors-within-intact-bone-marrow
#8
Alon Greenbaum, Ken Y Chan, Tatyana Dobreva, David Brown, Deepak H Balani, Rogely Boyce, Henry M Kronenberg, Helen J McBride, Viviana Gradinaru
Bone tissue harbors unique and essential physiological processes, such as hematopoiesis, bone growth, and bone remodeling. To enable visualization of these processes at the cellular level in an intact environment, we developed "Bone CLARITY," a bone tissue clearing method. We used Bone CLARITY and a custom-built light-sheet fluorescence microscope to detect the endogenous fluorescence of Sox9-tdTomato(+) osteoprogenitor cells in the tibia, femur, and vertebral column of adult transgenic mice. To obtain a complete distribution map of these osteoprogenitor cells, we developed a computational pipeline that semiautomatically detects individual Sox9-tdTomato(+) cells in their native three-dimensional environment...
April 26, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28446607/juvenile-hormone-and-its-receptor-methoprene-tolerant-promote-ribosomal-biogenesis-and-vitellogenesis-in-the-aedes-aegypti-mosquito
#9
Jia-Lin Wang, Tusar T Saha, Yang Zhang, Changyu Zhang, Alexander S Raikhel
Juvenile hormone (JH) controls many biological activities in insects, including development, metamorphosis and reproduction. In the Aedes aegypti mosquito, a vector of Dengue, Yellow fever, Chikungunya and Zika viruses, the metabolic tissue, the fat body, which is an analogue of the vertebrate liver, produces yolk proteins (YPs) for developing oocytes. JH is important for the fat body to acquire competence for YP production. However, the molecular mechanisms of how JH promotes mosquito reproduction are not completely understood...
April 26, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28446132/pcsk5-is-required-in-the-early-cranio-cardiac-mesoderm-for-heart-development
#10
Dorota Szumska, Milena Cioroch, Angela Keeling, Annik Prat, Nabil G Seidah, Shoumo Bhattacharya
BACKGROUND: Loss of proprotein convertase subtilisin/kexin type 5 (Pcsk5) results in multiple developmental anomalies including cardiac malformations, caudal regression, pre-sacral mass, renal agenesis, anteroposterior patterning defects, and tracheo-oesophageal and anorectal malformations, and is a model for VACTERL/caudal regression/Currarino syndromes (VACTERL association - Vertebral anomalies, Anal atresia, Cardiac defects, Tracheoesophageal fistula and/or Esophageal atresia, Renal & Radial anomalies and Limb defects)...
April 26, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28445456/floor-plate-derived-netrin-1-is-dispensable-for-commissural-axon-guidance
#11
Chloé Dominici, Juan Antonio Moreno-Bravo, Sergi Roig Puiggros, Quentin Rappeneau, Nicolas Rama, Pauline Vieugue, Agns Bernet, Patrick Mehlen, Alain Chédotal
Netrin-1 is an evolutionarily conserved, secreted extracellular matrix protein involved in axon guidance at the central nervous system midline. Netrin-1 is expressed by cells localized at the central nervous system midline, such as those of the floor plate in vertebrate embryos. Growth cone turning assays and three-dimensional gel diffusion assays have shown that netrin-1 can attract commissural axons. Loss-of-function experiments further demonstrated that commissural axon extension to the midline is severely impaired in the absence of netrin-1 (refs 3, 7, 8, 9)...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28444302/draft-genome-of-the-lined-seahorse-hippocampus-erectus
#12
Qiang Lin, Ying Qiu, Ruobo Gu, Meng Xu, Jia Li, Chao Bian, Huixian Zhang, Geng Qin, Yanhong Zhang, Wei Luo, Jieming Chen, Xinxin You, Mingjun Fan, Min Sun, Pao Xu, Byrappa Venkatesh, Junming Xu, Hongtuo Fu, Qiong Shi
Background: The lined seahorse, Hippocampus erectus , is an Atlantic species and mainly inhabits shallow sea-beds or coral reefs. It has become very popular in China for its wide use in traditional Chinese medicine. In order to improve the aquaculture yield of this valuable fish species, we are trying to develop genomic resources for assistant selection in genetic breeding. Here, we provide whole genome sequencing, assembly and gene annotation of the lined seahorse, which can enrich genome resource and further application for its molecular breeding...
April 22, 2017: GigaScience
https://www.readbyqxmd.com/read/28443978/characterisation-of-the-vascular-pathology-in-sigmodon-hispidus-rodentia-cricetidae-following-experimental-infection-with-angiostrongylus-costaricensis-nematoda-metastrongylidae
#13
Danielle Ingrid Bezerra de Vasconcelos, Ester Maria Mota, Marcelo Pelajo-Machado
BACKGROUND: Angiostrongylus costaricensis is a nematode that causes human abdominal angiostrongyliasis, a disease found mainly in Latin American countries and particularly in Brazil and Costa Rica. Its life cycle involves exploitation of both invertebrate and vertebrate hosts. Its natural reservoir is a vertebrate host, the cotton rat Sigmodon hispidus. The adult worms live in the ileo-colic branches of the upper mesenteric artery of S. hispidus, causing periarteritis. However, there is a lack of data on the development of vasculitis in the course of infection...
May 2017: Memórias do Instituto Oswaldo Cruz
https://www.readbyqxmd.com/read/28443175/the-versatile-approach-a-novel-single-incision-combined-with-anterior-and-posterior-approaches-for-decompression-and-instrumented-fusion-to-treat-tuberculosis-of-the-thoracic-spine
#14
Sudhir Kumar Srivastava, Rishi Anil Aggarwal, Sunil Krishna Bhosale, Kunal Roy, Pradip Sharad Nemade
STUDY DESIGN: Retrospective case series. PURPOSE: To describe a novel single incision that combines anterior and posterior approaches for decompression and instrumented fusion to treat tuberculosis of the thoracic spine and study the neurological and radiological outcomes. OVERVIEW OF LITERATURE: Tuberculosis of the spine remains a major health issue in many developing countries. The options for treating tuberculosis of the thoracic spine include the anterior, posterior, and combined approaches, each with its advantages and disadvantages...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28443165/long-term-outcomes-of-in-situ-fusion-for-treating-dysplastic-spondylolisthesis
#15
Kazuhide Inage, Sumihisa Orita, Kazuyo Yamauchi, Miyako Suzuki, Yoshihiro Sakuma, Go Kubota, Yasuhiro Oikawa, Takeshi Sainoh, Jun Sato, Kazuki Fujimoto, Yasuhiro Shiga, Koki Abe, Hirohito Kanamoto, Masahiro Inoue, Hideyuki Kinoshita, Masaki Norimoto, Tomotaka Umimura, Kazuhisa Takahashi, Seiji Ohtori
STUDY DESIGN: Retrospective, observational, single-center study. PURPOSE: To investigate the long-term outcomes of in situ fusion procedures for treating dysplastic spondylolisthesis. OVERVIEW OF LITERATURE: In situ fusion performed in patients with dysplastic spondylolisthesis avoids the development of nerve complications. METHODS: In total, 12 of 28 patients who underwent in situ fusion for treating dysplastic spondylolisthesis at Chiba University Hospital from 1974 to 2004 were followed up in August 2013...
April 2017: Asian Spine Journal
https://www.readbyqxmd.com/read/28441524/sequential-rosettes-drive-c-%C3%A2-elegans-ventral-nerve-cord-assembly
#16
Martha C Soto
Planar cell polarity (PCP) signaling orients developmental events in vertebrates and invertebrates, including convergent extension (CE). In this issue of Development Cell, Shah and Tanner et al. (2017) report that ROBO/SAX-3 signaling acts in parallel with PCP signaling to drive the CE required for ventral nerve cord assembly in C. elegans.
April 24, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28441306/orientation-of-the-upper-most-instrumented-segment-influences-proximal-junctional-disease-following-adult-spinal-deformity-surgery
#17
Renaud Lafage, Breton G Line, Sachin Gupta, Barthelemy Liabaud, Frank Schwab, Justin S Smith, Jeffrey L Gum, Christopher P Ames, Richard Hostin, Gregory M Mundis, Han Jo Kim, Shay Bess, Eric Klineberg, Virginie Lafage
STUDY DESIGN: Retrospective review of a prospective database. OBJECTIVE: To define the role of sagittal orientation of the construct at the upper instrumented levels in the development of proximal junctional kyphosis (PJK) in adult spinal deformity (ASD) patients. SUMMARY OF BACKGROUND DATA: PJK following ASD surgery remains challenging. The final alignment of the upper instrumented vertebral segments has been proposed as a risk factor for PJK, but has not been fully investigated...
April 24, 2017: Spine
https://www.readbyqxmd.com/read/28439703/the-impact-of-direct-vertebral-rotation-dvr-on-radiographic-outcome-in-surgical-correction-of-idiopathic-scoliosis
#18
Wiktor Urbanski, Michal J Wolanczyk, Wojciech Jurasz, Miroslaw Kulej, Piotr Morasiewicz, Szymon Lukasz Dragan, Marek Sasiadek, Szymon Feliks Dragan
INTRODUCTION: Recent developments of spinal instruments allow to address nearly all components of idiopathic scoliosis. Direct vertebral rotation (DVR) maneuver was introduced to correct apical axial vertebral rotation. It is however still not well established how efficiently DVR affects results of scoliosis correction. The object of the study was to evaluate en bloc apical vertebral rotation (DVR) and its impact on coronal and sagittal correction of the spine in patients undergoing surgical scoliosis treatment...
April 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28439397/transcriptomic-analysis-of-maternally-provisioned-cues-for-phenotypic-plasticity-in-the-annual-killifish-austrofundulus-limnaeus
#19
Amie L Romney, Jason E Podrabsky
BACKGROUND: Genotype and environment can interact during development to produce novel adaptive traits that support life in extreme conditions. The development of the annual killifish Austrofundulus limnaeus is unique among vertebrates because the embryos have distinct cell movements that separate epiboly from axis formation during early development, can enter into a state of metabolic dormancy known as diapause and can survive extreme environmental conditions. The ability to enter into diapause can be maternally programmed, with young females producing embryos that do not enter into diapause...
2017: EvoDevo
https://www.readbyqxmd.com/read/28439323/caudal-regression-syndrome-a-case-series-of-a-rare-congenital-anomaly
#20
Yogesh Kumar, Nishant Gupta, Kusum Hooda, Pranav Sharma, Salil Sharma, Puneet Kochar, Daichi Hayashi
BACKGROUND: Caudal regression syndrome is a rare, neural tube defect characterized by an abnormal development of the caudal aspect of the vertebral column and the spinal cord., It results in neurological deficits ranging from bladder and bowel involvement to severe sensory and motor deficits in the lower limbs. Maternal diabetes, genetic factors and some teratogens have been shown to be associated with its pathogenesis. Caudal regression syndrome is usually diagnosed initially by antenatal ultrasound with more definitive diagnosis made by antenatal or postnatal MRI...
2017: Polish Journal of Radiology
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