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Anna Segura, Noemí Pereda, Georgina Guilera
OBJECTIVE: This study aims to determine whether three different methodological approaches used to assess poly-victimization that apply the Juvenile Victimization Questionnaire (JVQ; Finkelhor, Hamby, Ormrod, & Turner, 2005) identify the same group of adolescent poly-victims. METHOD: The sample consisted of 1,105 adolescents (590 males and 515 females), aged 12-17 years old (M = 14.52, SD = 1.76) and recruited from seven secondary schools in Spain. The JVQ was used to assess lifetime and past-year experiences of victimization...
May 2018: Journal of Trauma & Dissociation
Patricia K Kerig, Crosby A Modrowski
The increasing prevalence of girls in the juvenile justice system suggests the importance of examining whether models of adolescent offending are differentiated by gender. Polyvictimization has emerged as a robust predictor of youth justice involvement, especially for girls, and research exploring mechanisms underlying the link between polyvictimization and offending suggests further gender differences in that callous-unemotional (CU) traits have been implicated in samples of boys whereas borderline personality (BP) traits have been implicated amongst girls...
May 2018: Journal of Trauma & Dissociation
Julian D Ford, Ruby Charak, Crosby A Modrowski, Patricia K Kerig
Polyvictimization (PV) has been shown to be associated with psychosocial and behavioral impairment in community and high risk populations, including youth involved in juvenile justice. However, the mechanisms accounting for these adverse outcomes have not been empirically delineated. Symptoms of posttraumatic stress disorder (PTSD) and dissociation are documented sequelae of PV and are associated with a wide range of behavioral/emotional problems. This study used a cross-sectional research design and bootstrapped multiple mediation analyses with self-report measures completed by a large sample of justice-involved youth (N = 809, ages 12-19 years old, 27% female, 46...
May 2018: Journal of Trauma & Dissociation
Patricia Lacourt, Julio Soto, Hana Rumié, Roger Gejman, Juan Carlos Pattillo, Cristián García, Hernán García
INTRODUCTION: Juvenile granulosa cell tumors (JGCT) are very rare, especially in infants under the age of one. The most frequent presentation is with signs of precocious puberty. OBJECTIVE: Present an in fant with peripheral precocious puberty, diagnosis of JGCT and follow up. CLINICAL CASE: 10-month-old female infant with thelarche, pubic hair and palpable abdominal mass accompanied with eleva ted levels of estradiol, very low gonadotrophins and images that show a very large ovarian mass...
December 2017: Revista Chilena de Pediatría
Yun Hu, Qinwei Sun, Yan Hu, Zhen Hou, Yibo Zong, Nagmeldin A Omer, Halima Abobaker, Ruqian Zhao
Background: We have shown previously that in ovo betaine injection can prevent nonalcoholic fatty liver induced by glucocorticoid exposure in chickens; yet it remains unknown whether feeding betaine to laying hens may exert similar effects in their progeny. Objective: In this study, we fed laying hens a betaine-supplemented diet, and the progeny were later exposed chronically to corticosterone (CORT) to test hepatoprotective effects and further elucidate underlying mechanisms...
March 1, 2018: Journal of Nutrition
Madelyne A Bisby, Kathryn D Baker, Rick Richardson
NMDA receptors (NMDARs) are considered critical for the consolidation of extinction but recent work challenges this assumption. Namely, NMDARs are not required for extinction retention in infant rats as well as when extinction training occurs for a second time (i.e., reextinction) in adult rats. In this study, a possible third instance of NMDAR-independent extinction was tested. Although adolescents typically exhibit impaired extinction retention, rats that are conditioned as juveniles and then given extinction training as adolescents (JuvCond-AdolesExt) have good extinction retention...
April 2018: Learning & Memory
Charles V Vorhees, Jenna N Sprowles, Samantha L Regan, Michael T Williams
High throughput screens for developmental neurotoxicity (DN) will facilitate evaluation of chemicals and can be used to prioritize those designated for follow-up. DN is evaluated under different guidelines. Those for drugs generally include peri- and postnatal studies and juvenile toxicity studies. For pesticides and commercial chemicals, when triggered, include developmental neurotoxicity studies (DNT) and extended one-generation reproductive toxicity studies. Raffaele et al. (2010) reviewed 69 pesticide DNT studies and found two of the four behavioral tests underperformed...
March 12, 2018: Toxicology and Applied Pharmacology
Priyadarshan Anand Jategaonkar, Smita Priyadarshan Jetegaonkar, Sudeep Pradeep Yadav
No abstract text is available yet for this article.
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Titilola Balogun, Catherine Troisi, Michael D Swartz, Linda Lloyd, Rebecca Beyda
Youth involved in the juvenile justice system represent a medically underserved population. Recidivist youth have poorer health outcomes compared to youth detained for the first time. This study determined differences in immunization history, substance use, mental health symptoms, and sexual behavior between recidivist youth and first-time detainees following improvements in intake screenings at a large, urban juvenile detention center in the Southeastern United States. Multivariable logistic regression analysis found that recidivist youth had significantly higher acellular pertussis immunization rates compared with first-time detainees (odds ratio [ OR] = 3...
January 1, 2018: Journal of Correctional Health Care
Nikita Woodhead, Kelly M Hare, Alison Cree
The existence of sex differences in digit-length ratio (especially between the second and fourth digits, 2D:4D) is well established for humans from fetal life onwards, and has been linked with later performance. In rodents, the ratio is affected prenatally by exposure to androgens and estrogens, with some research suggesting an influence from sex of the neighbouring intrauterine fetus. However, the ubiquity and ontogenetic development of sexual dimorphism in digit ratios is not well established among wild amniotes...
March 15, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
Natthanon Leelarasamee, Lei Zhang, Cynthia Gleason
Root-knot nematodes secrete effectors that manipulate their host plant cells so that the nematode can successfully establish feeding sites and complete its lifecycle. The root-knot nematode feeding structures, their "giant cells," undergo extensive cytoskeletal remodeling. Previous cytological studies have shown the cytoplasmic actin within the feeding sites looks diffuse. In an effort to study root-knot nematode effectors that are involved in giant cell organogenesis, we have identified a nematode effector called MiPFN3 (Meloidogyne incognita Profilin 3)...
March 15, 2018: PLoS Pathogens
A A Yarovoy, O V Golubeva, S S Kleyankina, T V Yanchenko
Juvenile xanthogranuloma (JX) is a benign growth of fibrohistiocytoma range that mainly affects children. The most frequent localization of the tumor is skin integument. Non-cutaneous forms of JX are found in 5-10% of cases; they are manifested as deep lesions of soft tissues, involvement of various organs (oropharynx, lungs, liver, spleen, pericardium, gastrointestinal tract, central nervous system, bone marrow) including the organ of vision. JX can develop in any part of the eye and its appendages. Taking into consideration how rare this pathology is, its diagnosis and treatment are complicated...
2018: Vestnik Oftalmologii
Peter A Nigrovic, Timothy Beukelman, George Tomlinson, Brian M Feldman, Laura E Schanberg, Yukiko Kimura
BACKGROUND: Systemic juvenile idiopathic arthritis is a rare febrile arthritis of childhood characterized by a potentially severe course, including prolonged glucocorticoid exposure, growth failure, destructive arthritis, and life-threatening macrophage activation syndrome. Early cytokine-blocking biologic therapy may improve long-term outcomes, although some systemic juvenile idiopathic arthritis patients respond well to non-biologic treatment, leaving optimal management undefined. Consequently, treatment of new-onset systemic juvenile idiopathic arthritis by expert clinicians varies widely...
March 1, 2018: Clinical Trials: Journal of the Society for Clinical Trials
Eiki Yoshida, Takafumi Suzuki, Masanobu Morita, Keiko Taguchi, Kohei Tsuchida, Hozumi Motohashi, Minoru Doita, Masayuki Yamamoto
Keap1 is a negative regulator of Nrf2, a master transcription factor that regulates cytoprotection against oxidative and electrophilic stresses. Although several studies have suggested that the Keap1-Nrf2 system contributes to bone formation besides the maintenance of redox homeostasis, how Nrf2 hyperactivation by Keap1 deficiency affects the bone formation remains to be explored, as the Keap1-null mice are juvenile lethal. To overcome this problem, we used viable Keap1-deficient mice that we have generated by deleting the esophageal Nrf2 in Keap1-null mice (NEKO mice)...
March 15, 2018: Genes to Cells: Devoted to Molecular & Cellular Mechanisms
Atsuo Nishino
Neurobiology in ascidians has made many advances. Ascidians have offered natural advantages to researchers, including fecundity, structural simplicity, invariant morphology, and fast and stereotyped developmental processes. The researchers have also accumulated on this animal a great deal of knowledge, genomic resources, and modern genetic techniques. A recent connectomic analysis has shown an ultimately resolved image of the larval nervous system, whereas recent applications of live imaging and optogenetics have clarified the functional organization of the juvenile nervous system...
2018: Advances in Experimental Medicine and Biology
E Kondera, B Teodorczuk, K Ługowska, M Witeska
The effects of Roundup (glyphosate-based herbicide) on peripheral blood parameters and hematopoietic tissue cellular composition and activity in common carp juveniles were evaluated. The fish were exposed for 7 days at 0.0, 0.1, 0.5, or 5.0 mg/L of glyphosate. In fish exposed to Roundup, hematological alterations were observed; however, most of them were not directly related to the herbicide concentration. An increase in Ht and MCV, and decrease in Hb, MCH, and MCHC compared to the control were observed. Fish exposed to Roundup showed also a reduction in WBC and oxidative metabolic activity of phagocytes (NBT) compared to the control...
March 14, 2018: Fish Physiology and Biochemistry
Ina Schlathölter, Melanie Jänsch, Henryk Flachowsky, Giovanni Antonio Lodovico Broggini, Magda-Viola Hanke, Andrea Patocchi
The approach presented here can be applied to reduce the time needed to introduce traits from wild apples into null segregant advanced selections by one-fourth. Interesting traits like resistances to pathogens are often found within the wild apple gene pool. However, the long juvenile phase of apple seedlings hampers the rapid introduction of these traits into new cultivars. The rapid crop cycle breeding approach used in this paper is based on the overexpression of the birch (Betula pendula) MADS4 transcription factor in apple...
March 14, 2018: Planta
Chukai Huang, Lijing Xie, Zhenggen Wu, Yingjie Cao, Yuqian Zheng, Chi-Pui Pang, Mingzhi Zhang
Juvenile onset open-angle glaucoma (JOAG) affects patients before 40 years of age, causing high intraocular pressure and severe optic nerve damage. To expand the mutation spectrum of the causative genes in JOAG, with a view to identify novel disease-causing mutations, we investigated MYOC, OPTN, NTF4, WDR36 and CYP1B1 in a cohort of 67 unrelated Chinese JOAG patients. Whole exome sequencing was used to identify possible pathogenic mutations, which were further excluded in normal controls. After sequencing and the use of a database pipeline, as well as predictive assessment filtering, we identified a total of six mutations in three genes, MYOC, OPTN and CYP1B1...
March 14, 2018: Scientific Reports
Mei Mei, Haojun Song, Lina Chen, Bin Hu, Ru Bai, Diandou Xu, Ying Liu, Yuliang Zhao, Chunying Chen
BACKGROUND: Epidemiological studies have suggested that elevated levels of air pollution contribute to an increased incidence or severity of asthma. Although late-onset adult asthma seems to be more attributable to environmental risk factors, limited data is available on the impact of early-life exposure to size-fractionated ambient particulate matter (PM) on asthma in adults. We aimed to determine the effect on the development and exacerbation of asthma in the adult after the mice were exposed as juveniles to three size-fractionated ambient particulates collected from Beijing...
March 14, 2018: Particle and Fibre Toxicology
Alexandra Okihiro, Rachana Hasija, Lillia Fung, Bonnie Cameron, Brian M Feldman, Ronald Laxer, Rayfel Schneider, Earl Silverman, Lynn Spiegel, Rae S M Yeung, Shirley M L Tse
BACKGROUND: Anti-TNF (Tumor necrosis factor) therapy is effective in treating pediatric patients with refractory rheumatic disease. There is however a concern that anti-TNF usage may increase the risk of malignancy. Reports on specific types of malignancy in this patient population have been emerging over the past decade, but there is a need for additional malignancy reports, as these events are rare. Therefore, a retrospective chart review was performed on the biologic database of pediatric rheumatology patients at The Hospital for Sick Children (SickKids) from 1997 to 2013 for neoplasms, patient demographic information and rheumatologic treatment course...
March 14, 2018: Pediatric Rheumatology Online Journal
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