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Karen Sophia Park, Dorothea Godt, Daniel Kalderon
Unlike adult Drosophila ovaries, pupal ovaries are relatively difficult to access and examine due to their small size, translucence, and encasing within a pupal case. The challenge of dissecting pupal ovaries also lies in their physical location within the pupa: the ovaries are surrounded by fat body cells inside the pupal abdomen, and these fat cells must be removed to allow for proper antibody staining. To overcome these challenges, this protocol utilizes customized Pasteur pipets to extract fat body cells from the pupal abdomen...
March 2, 2018: Journal of Visualized Experiments: JoVE
A Minguez, M Milh
The objective of this study was to investigate the adaptive functioning of adults who had a slight to moderate intellectual deficiency, in regard of age and intellectual quotient (IQ). Cognitive and adaptive functioning were evaluated using the WAIS and VINELAND scales in 16 adults who accepted to participate in this study. We found a correlation between global IQ and each domain of the adaptive score, mostly communication skills. We also found that there was an age effect on socialization skills. Most skills were learned during infancy and adolescence, especially communication skills, which are highly stable at different ages and highly correlated with IQ...
March 15, 2018: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
Tae Hyun Ban, Ji-Won Min, Changhwan Seo, Da Rae Kim, Yu Ho Lee, Byung Ha Chung, Kyung-Hwan Jeong, Jae Wook Lee, Beom Seok Kim, Sang-Ho Lee, Bum Soon Choi, Jin Suk Han, Chul Woo Yang
Background/Aims: The true incidence of aristolochic acid nephropathy (AAN) is thought to be underestimated because numerous ingredients known or suspected to contain aristolochic acid (AA) are used in traditional medicine in Korea. Methods: We collected data on cases of AAN since 1996 via a database in Korea. We evaluated the year of AAN development, route to obtaining AA-containing herbal medicine, gender, reason for taking AA-containing herbal medicine, clinical manifestations, histological findings, phytochemical analysis, and prognosis of patients with AAN...
March 20, 2018: Korean Journal of Internal Medicine
Sumit Malhotra, Praveen Vashist, Mani Kalaivani, Noopur Gupta, Suraj Singh Senjam, Ramashankar Rath, Sanjeev Kumar Gupta
OBJECTIVES: To determine the prevalence, causes and associated factors for visual impairment (VI) in rural population of Jhajjar district, Haryana, north India. METHODS: A community-based, cross-sectional study was conducted in two blocks of Jhajjar district. A total of 34 villages were selected using probability proportionate to size sampling method. Adults aged 50 years and above were selected using compact segment cluster sampling approach. Presenting visual acuity using LogMAR E chart was measured along with collection of other demographic details as part of the house-to-house survey...
March 17, 2018: BMJ Open
Zhen Zhang, Hongwei Sun, Yu Chen, Tianqi Cao, Zhou Songyang, Junjiu Huang, Yan Huang
About 70% of zebrafish (Danio rerio) genes are orthologues of the human's, which are of great interests, but still largely unknown for their functions. Recently, a report on human histone PARylation factor 1 (HPF1/C4orf27) showed that it is involved in DNA damage response along with poly (ADP-ribose) polymerase 1 (PARP1). However, its function in living organism remains unclear. Given that zebrafish has showed its values in modeling human diseases and physiology, we characterized a zebrafish homolog of human HPF1 by sequence alignment...
March 17, 2018: Development Genes and Evolution
K Kalb, J van Schoonhoven, J Windolf, T Pillukat
BACKGROUND: There still is no standard therapy that predictably results in healing of avascular necrosis of the lunate bone. Nevertheless, there exists a wide spectrum of operative treatment options for different stages. OBJECTIVE: This article reviews the treatment options for necrosis of the lunate bone and proposes algorithms based on the age of the patient and condition of the lunate bone and the wrist. METHODS: Surgical treatment options for necrosis of the lunate bone can be divided into relieving or revascularization procedures and salvage procedures...
March 16, 2018: Der Unfallchirurg
Janelle L Harris, Keyur Dave, Jeffrey Gorman, Kum Kum Khanna
BACKGROUND AND AIMS: 5T4 is a transmembrane glycoprotein with limited expression in normal adult tissues and expression in some solid tumours. It is unclear whether 5T4 is preferentially expressed by stem or differentiated cell types. Modes of 5T4 regulation are unknown despite its ongoing development as a cancer immunotherapy target. Our aims were to clarify the differentiation status of 5T4 expressing cells in breast cancer and to understand the mechanism underlying 5T4 membrane presentation...
March 13, 2018: International Journal of Biochemistry & Cell Biology
Yun Bai, Chuan Liu, Lei Fu, Xiaoshan Gong, Ce Dou, Zhen Cao, Hongyu Quan, Jianmei Li, Fei Kang, Jingjin Dai, Chunrong Zhao, Shiwu Dong
Endochondral ossification is crucial for bone formation in both adult bone repair process and embryo long-bone development. In endochondral ossification, bone marrow-derived mesenchymal stem cells (BMSCs) first differentiate to chondrocyte, BMSC-derived chondrocyte then endure a hypertrophic process to generate new bone. Endochondral ossification-based bone repair is a promising strategy to cure massive bone defect, which is a major clinical issue in orthopedics. However, challenges still remain for this novel strategy...
March 16, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
Anna L Suominen, Sinikka Varsio, Sari Helminen, Anne Nordblad, Satu Lahti, Matti Knuuttila
OBJECTIVE: We assessed dental and periodontal health in adults aged ≥30 years living in southern and northern Finland as part of the Health 2000/2011 Surveys (BRIF8901). MATERIAL AND METHODS: Clinical findings in 2000 (n = 2967) and 2011 (n = 1496) included the presence of teeth and number of teeth with caries, fillings, fractures or periodontal pockets. RESULTS: Edentulousness decreased in all age groups. The prevalence of those with no caries increased from 67% to 69% in men and from 80% to 85% in women, and of those with no periodontal pocketing from 26% to 30% in men and from 39% to 42% in women...
March 16, 2018: Acta Odontologica Scandinavica
Jose J G Marin, Oscar Briz, Elisa Herraez, Elisa Lozano, Maitane Asensio, Silvia Di Giacomo, Marta R Romero, Luis M Osorio-Padilla, Ana I Santos-Llamas, Maria A Serrano, Carolina Armengol, Thomas Efferth, Rocio I R Macias
A characteristic shared by most frequent types of primary liver cancer, i.e., hepatocellular carcinoma (HCC) and cholangiocarcinoma (CCA) in adults, and in a lesser extent hepatoblastoma (HB) mainly in children, is their high refractoriness to chemotherapy. This is the result of synergic interactions among complex and diverse mechanisms of chemoresistance (MOC) in which more than 100 genes are involved. Pharmacological treatment, although it can be initially effective, frequently stimulates the expression of MOC genes, which results in the relapse of the tumor, usually with a more aggressive and less chemosensitive phenotype...
March 12, 2018: Clinics and Research in Hepatology and Gastroenterology
Bin Du, You-Quan Ding, Xia Xiao, Hong-Yi Ren, Bing-Yin Su, Jian-Guo Qi
BACKGROUND: Antigen-specific and MHCII-restricted CD4+ αβ T cells have been shown or suggested to play an important role in the transition from acute to chronic mechanical allodynia after peripheral nerve injuries. However, it is still largely unknown where these T cells infiltrate along the somatosensory pathways transmitting mechanical allodynia to initiate the development of chronic mechanical allodynia after nerve injuries. Therefore, the purpose of this study was to ascertain the definite neuroimmune interface for these T cells to initiate the development of chronic mechanical allodynia after peripheral nerve injuries...
March 15, 2018: Journal of Neuroinflammation
Paula Marrano, Mary Shago, Gino R Somers, Paul S Thorner
Osteogenic sarcoma (OS) is the most common malignant bone tumor in children and adolescents. Despite advances in molecular genetic characterization of pediatric and adult tumors, the diagnosis of OS still depends almost entirely on light microscopy. The lack of consistent genetic changes in OS has greatly hindered the development of any diagnostic molecular test. Recently, whole-genome sequencing has shown that ~50% of cases of OS have a translocation involving the TP53 gene with breakpoints confined to the first intron...
March 14, 2018: American Journal of Surgical Pathology
Amy E Leedale, Stuart P Sharp, Michelle Simeoni, Elva J H Robinson, Ben J Hatchwell
In animal societies, characteristic demographic and dispersal patterns may lead to genetic structuring of populations, generating the potential for kin selection to operate. However, even in genetically structured populations, social interactions may still require kin discrimination for cooperative behaviour to be directed towards relatives. Here, we use molecular genetics and long-term field data to investigate genetic structure in an adult population of long-tailed tits Aegithalos caudatus, a cooperative breeder in which helping occurs within extended kin networks, and relate this to patterns of helping with respect to kinship...
March 15, 2018: Molecular Ecology
Yumeng Li, Rumit S Kakar, Marika A Walker, Li Guan, Kathy J Simpson
The upper trunk - pelvic coordination patterns used in running are not well understood. The purposes of our study are to (a) test the running speed effect on the upper trunk - pelvis axial rotation coordination; (b) present a step-by-step guide of the relative Fourier phase algorithm as well as some further issues to consider. Twenty healthy young adults were tested under three treadmill running speeds using a 3D motion capture system. The upper trunk and pelvic segmental angles in axial rotation were calculated and the coordination was quantified using the relative Fourier phase method...
March 15, 2018: Journal of Applied Biomechanics
Mario Novak, Vlasta Vyroubal, Željko Krnčević, Maja Petrinec, Rachel Howcroft, Ron Pinhasi, Mario Slaus
Childhood stress, using both subadult and adult remains from early mediaeval (8th -11th c. CE) sites on the eastern Adriatic coast is analysed in this report. A total of 242 individuals (83 subadults, 69 adult females, and 90 adult males) were assessed for the presence of linear enamel hypoplasia, cribra orbitalia, sub-periosteal new bone formation, and scurvy. In addition, the dietary profile of nine subadults was assessed by the analysis of carbon and nitrogen stable isotopes from bulk collagen. Over three quarters of individuals with preserved permanent dentition (44/56 or 78...
March 14, 2018: Anthropologischer Anzeiger; Bericht über die Biologisch-anthropologische Literatur
Nedime Serakinci, Huseyin Cagsin, Merdiye Mavis
Telomeres are repetitive genetic materials that protect the chromosomes by capping the ends of chromosomes. Each time a cell divides, telomeres get shorter. Telomere length is mainly maintained by telomerase. This enzyme is present in the embryonic stem cells in high concentrations and declines with age. It is still unclear to what extend there is telomerase in adult stem cells, but considering these are the founder cells to the cells of the all tissues in a body, understanding the telomere dynamics and expression of telomerase in adult stem cells is very important...
March 15, 2018: Methods in Molecular Biology
Robert T Mankowski, Victor M Niemeijer, Jasper P Jansen, Lotte Spraakman, Henk J Stam, Stephan F E Praet
Purpose: It is still equivocal whether oxygen uptake recovery kinetics are limited by oxygen delivery and can be improved by supplementary oxygen. The present study aimed to investigate whether measurements of muscle and pulmonary oxygen uptake kinetics can be used to assess oxygen delivery limitations in healthy subjects. Methods: Sixteen healthy young adults performed three sub-maximal exercise tests (6 min at 40% Wmax ) under hypoxic (14%O2 ), normoxic (21%O2 ) and hyperoxic (35%O2 ) conditions on separate days in randomized order...
June 2017: Journal of Exercise Science and Fitness
Daniel W Yokom, Shabbir M H Alibhai, Schroder Sattar, Monika K Krzyzanowska, Martine T E Puts
INTRODUCTION: Screening tools in geriatric oncology have traditionally been studied for their ability to identify patients who have abnormal domains on a comprehensive geriatric assessment (CGA). However, an alternative outcome of identifying patients who would receive CGA-based interventions could improve selection of patients whose management will be altered by a CGA. The objective of this study was to assess the performance of three geriatric oncology screening tools for their ability to predict for CGA-based interventions...
March 12, 2018: Journal of Geriatric Oncology
J Smith Torres-Roman, Diego Urrunaga-Pastor, Jose L Avilez, Luis M Helguero-Santin, German Malaga
BACKGROUND: Childhood obesity is emerging as a major public health problem worldwide. To date, most studies of obesity and overweight in Peru are focused on adults, with few of them involving children, a population at a critical stage of development. The trend in overweight and obesity prevalence in Peruvian children under the age of five has not yet been determined. Thus, the objective of the present study is to evaluate the prevalence rates of overweight and obesity between 2010 and 2015 in children under the age of five, stratified by geographical areas in Peru...
March 14, 2018: BMC Public Health
Thomas P Karbanowicz, Amanda Nouwens, Ala E Tabor, Manuel Rodriguez-Valle
Tick populations are controlled through the application of chemical pesticides. However, the rise in chemical resistance has prompted the investigation of other control methods such as the use of tick vaccines. Proteomic analysis provides valuable information about the possible function and localization of proteins, as candidate vaccine proteins are often either secreted or localized on the cell-surface membrane. Progress in the utilization of proteomics for the identification of novel treatment targets has been significant...
March 14, 2018: Veterinary Sciences
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