keyword
MENU ▼
Read by QxMD icon Read
search

Morphometric

keyword
https://www.readbyqxmd.com/read/29165746/computed-tomographic-localization-of-the-central-sulcus-a-morphometric-study-in-adult-patients
#1
Dan Zimelewicz Oberman, Jorge Rasmussen, Maximiliano Toscano, Ezequiel Goldschmidt, Pablo Ajler
AIM: Despite advances in intraoperative navigation and electrocorticography, neuroanatomical knowledge is an essential tool for neurosurgical planning. The aim of this study was to accurately describe the relations between the anatomical landmarks of the cranial convexity and the main cortical structures. MATERIAL AND METHODS: A retrospective cross-sectional, observational study was performed. Computed tomography scans of 71 adult patients with no pathological imaging were analyzed...
November 1, 2017: Turkish Neurosurgery
https://www.readbyqxmd.com/read/29165048/psychoradiologic-utility-of-mr-imaging-for-diagnosis-of-attention-deficit-hyperactivity-disorder-a-radiomics-analysis
#2
Huaiqiang Sun, Ying Chen, Qiang Huang, Su Lui, Xiaoqi Huang, Yan Shi, Xin Xu, John A Sweeney, Qiyong Gong
Purpose To identify cerebral radiomic features related to diagnosis and subtyping of attention deficit hyperactivity disorder (ADHD) and to build and evaluate classification models for ADHD diagnosis and subtyping on the basis of the identified features. Materials and Methods A consecutive cohort of 83 age- and sex-matched children with newly diagnosed and never-treated ADHD (mean age 10.83 years ± 2.30; range, 7-14 years; 71 boys, 40 with ADHD-inattentive [ADHD-I] and 43 with ADHD-combined [ADHD-C, or inattentive and hyperactive]) and 87 healthy control subjects (mean age, 11...
November 22, 2017: Radiology
https://www.readbyqxmd.com/read/29163270/facial-shape-analysis-identifies-valid-cues-to-aspects-of-physiological-health-in-caucasian-asian-and-african-populations
#3
Ian D Stephen, Vivian Hiew, Vinet Coetzee, Bernard P Tiddeman, David I Perrett
Facial cues contribute to attractiveness, including shape cues such as symmetry, averageness, and sexual dimorphism. These cues may represent cues to objective aspects of physiological health, thereby conferring an evolutionary advantage to individuals who find them attractive. The link between facial cues and aspects of physiological health is therefore central to evolutionary explanations of attractiveness. Previously, studies linking facial cues to aspects of physiological health have been infrequent, have had mixed results, and have tended to focus on individual facial cues in isolation...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/29161551/morphometric-behavioral-and-genomic-evidence-for-a-new-orangutan-species
#4
Alexander Nater, Maja P Mattle-Greminger, Anton Nurcahyo, Matthew G Nowak, Marc de Manuel, Tariq Desai, Colin Groves, Marc Pybus, Tugce Bilgin Sonay, Christian Roos, Adriano R Lameira, Serge A Wich, James Askew, Marina Davila-Ross, Gabriella Fredriksson, Guillem de Valles, Ferran Casals, Javier Prado-Martinez, Benoit Goossens, Ernst J Verschoor, Kristin S Warren, Ian Singleton, David A Marques, Joko Pamungkas, Dyah Perwitasari-Farajallah, Puji Rianti, Augustine Tuuga, Ivo G Gut, Marta Gut, Pablo Orozco-terWengel, Carel P van Schaik, Jaume Bertranpetit, Maria Anisimova, Aylwyn Scally, Tomas Marques-Bonet, Erik Meijaard, Michael Krützen
No abstract text is available yet for this article.
November 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/29161484/-anopheles-darlingi-diptera-culicidae-rood-1926-morphometric-variations-in-wings-and-legs-of-populations-from-colombia
#5
Miguel Alfonso Pacheco, Ranulfo González, Helena Luisa Brochero
INTRODUCTION: Natural populations of Anopheles darlingi, the main malaria vector in Colombia, have shown phenotypic variations in some of their diagnostic characters. OBJECTIVE: To characterize morphometric variations in wing spot patterns and diagnostic characters of the hind leg of adult females of An. darlingi collected in areas where malaria is endemic. MATERIALS AND METHODS: Patterns of the costal vein spots of wild females of An. darling populations collected in the departments of Chocó, Guaviare, Meta and Vichada were analyzed using linear and morphometric approaches...
March 29, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/29160371/effect-of-ovariectomy-in-bone-structure-of-mandibular-condyle
#6
Cristina Constâncio, Bruna Trazzi Pagani, Regina Magrini Guedes de Azevedo, Dalva Pazzini Grion, Leonardo Marques, Angela Kinoshita
PURPOSE: To evaluate the bone structure of the mandibular condyle through an animal model, after ovariectomy. METHODS: Thirty-six female Wistar rats were divided into 2 groups. The OVX group was submitted to bilateral ovariectomy, the SHAM group underwent the same surgical treatment, but without removal of the ovaries. After 90, 105 and 135 days after surgery, six animals from each group were submitted to euthanasia and the part containing the condyle was removed...
October 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/29159580/low-left-amygdala-volume-is-associated-with-a-longer-duration-of-unipolar-depression
#7
Maxim Zavorotnyy, Rebecca Zöllner, L R Schulte-Güstenberg, L Wulff, S Schöning, U Dannlowski, H Kugel, V Arolt, C Konrad
The amygdala plays a crucial role in the pathogenesis of major depressive disorder (MDD). While robust findings support a negative impact of illness duration on hippocampal volume in MDD, morphometric studies of the amygdala have yielded inhomogeneous results. Considering the methodical problems of automatic segmentation methods, a standardized segmentation protocol with proven inter- and intra-rater reliability was employed using high-resolution magnetic resonance imaging. To identify the effect of MDD on amygdala morphometry, 23 unipolar depressed patients who responded to antidepressant medication and 30 age-matched healthy controls (HC) were enrolled...
November 20, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29156994/experimental-diabetes-impairs-maternal-reproductive-performance-in-pregnant-wistar-rats-and-their-offspring
#8
Leticia Bequer, Tahiry Gómez, José L Molina, Alain Álvarez, Claudia Chaviano, Sonia Clapés
The aim of this study was to determine the effect of mild hyperglycemia on metabolism during pregnancy, the maternal reproductive performance, and the characteristics of the offspring in neonatal mild diabetic-induced Wistar rats. The experimental diabetes model was generated by neonatal streptozotocin administration (100 mg of streptozotocin/Kg bw/sc) in female Wistar rats. At adulthood, the control and diabetic group were mated. At the 20th day of gestation, a maternal and fetal blood sample were collected for biochemical measurement...
November 20, 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/29156519/in-vivo-assessment-of-the-osteo-protective-effects-of-eugenol-in-alveolar-bone-tissues
#9
Hatem M Abuohashish, Dina A Khairy, Maha M Abdelsalam, Ahmed Alsayyah, Mohammed M Ahmed, Salim S Al-Rejaie
Estrogen deficiency following menopausal provokes alveolar bone loss, remodeling and inflammation. Eugenol is a phenolic compound with wide dental applications and anti-inflammatory properties. In the present study, the potential protective role of eugenol against alveolar bone deformities was investigated in an ovariectomized (OVX) rodent model. Two doses of eugenol (2.5 and 5 mg/kg/d) were administered to OVX animals for 12 weeks. In Serum, markers of bone metabolism and pro-inflammatory cytokines were estimated using ELISA...
November 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156494/comparative-analysis-of-vestibular-ecomorphology-in-birds
#10
Roger B J Benson, Ethan Starmer-Jones, Roger A Close, Stig A Walsh
The bony labyrinth of vertebrates houses the semicircular canals. These sense rotational accelerations of the head and play an essential role in gaze stabilisation during locomotion. The sizes and shapes of the semicircular canals have hypothesised relationships to agility and locomotory modes in many groups, including birds, and a burgeoning palaeontological literature seeks to make ecological interpretations from the morphology of the labyrinth in extinct species. Rigorous tests of form-function relationships for the vestibular system are required to support these interpretations...
December 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/29155760/echocardiographic-and-histological-examination-of-cardiac-morphology-in-the-mouse
#11
Delphine Baudouy, Jean-François Michiels, Ana Vukolic, Kay-Dietrich Wagner, Nicole Wagner
An increasing number of genetically modified mouse models has become available in recent years. Moreover, the number of pharmacological studies performed in mice is high. Phenotypic characterization of these mouse models also requires the examination of cardiac function and morphology. Echocardiography and magnetic resonance imaging (MRI) are commonly used approaches to characterize cardiac function and morphology in mice. Echocardiographic and MRI equipment specialized for use in small rodents is expensive and requires a dedicated space...
October 26, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155446/the-china-plant-trait-database-towards-a-comprehensive-regional-compilation-of-functional-traits-for-land-plants
#12
Han Wang, Sandy P Harrison, I Colin Prentice, Yanzheng Yang, Fan Bai, Henrique Furstenau Togashi, Meng Wang, Shuangxi Zhou, Jian Ni
Plant functional traits provide information about adaptations to climate and environmental conditions, and can be used to explore the existence of alternative plant strategies within ecosystems. Trait data are also increasingly being used to provide parameter estimates for vegetation models. Here we present a new database of plant functional traits from China. Most global climate and vegetation types can be found in China, and thus the database is relevant for global modelling. The China Plant Trait Database contains information on morphometric, physical, chemical and photosynthetic traits from 122 sites spanning the range from boreal to tropical, and from deserts and steppes through woodlands and forests, including montane vegetation...
November 20, 2017: Ecology
https://www.readbyqxmd.com/read/29155383/efficacy-of-optical-coherence-tomography-derived-morphometric-assessment-in-predicting-the-physiological-significance-of-coronary-stenosis-head-to-head-comparison-with-intravascular-ultrasound
#13
Eisuke Usui, Taishi Yonetsu, Yoshihisa Kanaji, Masahiro Hoshino, Masao Yamaguchi, Masahiro Hada, Rikuta Hamaya, Yoshinori Kanno, Tadashi Murai, Tetsumin Lee, Tsunekazu Kakuta
AIMS: This study aimed to investigate the diagnostic efficacy of optical coherence tomography (OCT) in identifying functional significance via fractional flow reserve (FFR) compared with that of intravascular ultrasound (IVUS). METHODS AND RESULTS: We investigated 203 de novo intermediate coronary lesions of 186 patients who underwent frequency-domain OCT, IVUS and FFR measurements. Diagnostic efficacy of the minimal lumen area (MLA) obtained by OCT (OCT-MLA) and IVUS (IVUS-MLA) in predicting an FFR<0...
November 21, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29154456/predicting-the-bending-properties-of-long-bones-insights-from-an-experimental-mouse-model
#14
Sarah J Peacock, Brittney R Coats, J Kyle Kirkland, Courtney A Tanner, Theodore Garland, Kevin M Middleton
OBJECTIVES: Analyses of bone cross-sectional geometry are frequently used by anthropologists and paleontologists to infer the loading histories of past populations. To address some underlying assumptions, we investigated the relative roles of genetics and exercise on bone cross-sectional geometry and bending mechanics in three mouse strains: high bone density (C3H/He), low bone density (C57BL/6), and a high-runner strain homozygous for the Myh4(Minimsc) allele (MM). METHODS AND MATERIALS: Weanlings of each strain were divided into exercise (wheel) or control (sedentary) treatment groups for a 7-week experimental period...
November 20, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29154284/palmitoylethanolamide-blunts-amyloid-%C3%AE-42-induced-astrocyte-activation-and-improves-neuronal-survival-in-primary-mouse-cortical-astrocyte-neuron-co-cultures
#15
Sarah Beggiato, Andrea Celeste Borelli, Luca Ferraro, Sergio Tanganelli, Tiziana Antonelli, Maria Cristina Tomasini
BACKGROUND: Based on the pivotal role of astrocytes in brain homeostasis and the strong metabolic cooperation existing between neurons and astrocytes, it has been suggested that astrocytic dysfunctions might cause and/or contribute to neuroinflammation and neurodegenerative processes. Therapeutic approaches aimed at both neuroprotection and neuroinflammation reduction may prove particularly effective in slowing the progression of these diseases. The endogenous lipid mediator palmitoylethanolamide (PEA) displayed neuroprotective and anti(neuro)inflammatory properties, and demonstrated interesting potential as a novel treatment for Alzheimer's disease...
November 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29152715/erratum-resolving-relationships-between-several-neolithic-and-mesolithic-populations-in-northern-eurasia-using-geometric-morphometrics-164-163-183-ekaterina-stansfield-bulygina-anna-rasskasova-natalia-berezina-and-andrei-d-soficaru-doi-10-1002-ajpa-23264
#16
https://www.readbyqxmd.com/read/29150742/associations-between-nucleus-size-and-immunohistochemical-galectin-3-cytokeratine-19-and-hbme-1-markers-in-thyroid-papillary-carcinoma-a-morphometric-analyze
#17
Hatice Toy, Ozlem Etli, Zeliha Esin Celik, Arsenal Sezgin Alikanoglu
This study aimed to evaluate the morphometric measurements in cases with papillary thyroid carcinoma, and determine a cut-off value to support diagnosis. Fifty cases with a diagnosis of papillary thyroid carcinoma (PTC) were included in the study with their Galectine-3, CK-19 and HBME-1 immunohistochemical staining results. Demographic and clinical data gathered from pathology reports, which included demographic information such as patients' sex, age, macroscopic tumor size, number of tumor focuses; prognostic parameters such as lenfovascular invasion, perineural invasion, thyroid capsule invasion; and results of immunohistochemical CK- 19, Galectin-3 and HBME-1 staining...
November 17, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/29150697/a-novel-allele-of-tagw2-a1-is-located-in-a-finely-mapped-qtl-that-increases-grain-weight-but-decreases-grain-number-in-wheat-triticum-aestivum-l
#18
Huijie Zhai, Zhiyu Feng, Xiaofen Du, Yane Song, Xinye Liu, Zhongqi Qi, Long Song, Jiang Li, Linghong Li, Huiru Peng, Zhaorong Hu, Yingyin Yao, Mingming Xin, Shihe Xiao, Qixin Sun, Zhongfu Ni
A novel TaGW2-A1 allele was identified from a stable, robust QTL region, which is pleiotropic for thousand grain weight, grain number per spike, and grain morphometric parameters in wheat. Thousand grain weight (TGW) and grain number per spike (GNS) are two crucial determinants of wheat spike yield, and genetic dissection of their relationships can help to fine-tune these two components and maximize grain yield. By evaluating 191 recombinant inbred lines in 11 field trials, we identified five genomic regions on chromosomes 1B, 3A, 3B, 5B, or 7A that solely influenced either TGW or GNS, and a further region on chromosome 6A that concurrently affected TGW and GNS...
November 17, 2017: TAG. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik
https://www.readbyqxmd.com/read/29150217/idiopathic-macular-telangiectasia-type-2-prevalence-and-a-morphometric-and-phenotypic-study
#19
R M Bayón-Porras, I Pascual-Camps, C Plaza-Laguardia, R Gallego-Pinazo
OBJECTIVE: Type 2 idiopathic macular telangiectasia (MacTel2) is a rare retinal disease that has still not been well-defined. The aim of the present manuscript is to describe the clinical features by multimodal retinal imaging, to present the functional characteristics, and to estimate the prevalence of the disease. METHODS: A retrospective study was conducted on the 12 eyes of 6 patients with MacTel2. Fundus colour photographs, fundus autofluorescence, fluorescein angiography, optical coherence tomography (OCT), and OCT-angiography were performed and subsequently analysed...
November 14, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/29149840/geometric-morphometrics-reveals-shifts-in-flower-shape-symmetry-and-size-following-gene-knockdown-of-cycloidea-and-anthocyanidin-synthase
#20
Brent A Berger, Vincent A Ricigliano, Yoland Savriama, Aedric Lim, Veronica Thompson, Dianella G Howarth
BACKGROUND: While floral symmetry has traditionally been assessed qualitatively, recent advances in geometric morphometrics have opened up new avenues to specifically quantify flower shape and size using robust multivariate statistical methods. In this study, we examine, for the first time, the ability of geometric morphometrics to detect morphological differences in floral dorsoventral asymmetry following virus-induced gene silencing (VIGS). Using Fedia graciliflora Fisch. & Meyer (Valerianaceae) as a model, corolla shape of untreated flowers was compared using canonical variate analysis to knockdown phenotypes of CYCLOIDEA2A (FgCYC2A), ANTHOCYANIDIN SYNTHASE (FgANS), and empty vector controls...
November 17, 2017: BMC Plant Biology
keyword
keyword
107805
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"