796 research outputs found
Speech delays and behavioral problems are the predominant features in individuals with developmental delays and 16p11.2 microdeletions and microduplications
Microdeletions and microduplications encompassing a ~593-kb region of 16p11.2 have been implicated as one of the most common genetic causes of susceptibility to autism/autism spectrum disorder (ASD). We report 45 microdeletions and 32 microduplications of 16p11.2, representing 0.78% of 9,773 individuals referred to our laboratory for microarray-based comparative genomic hybridization (aCGH) testing for neurodevelopmental and congenital anomalies. The microdeletion was de novo in 17 individuals and maternally inherited in five individuals for whom parental testing was available. Detailed histories of 18 individuals with 16p11.2 microdeletions were reviewed; all had developmental delays with below-average intelligence, and a majority had speech or language problems or delays and various behavioral problems. Of the 16 individuals old enough to be evaluated for autism, the speech/behavior profiles of seven did not suggest the need for ASD evaluation. Of the remaining nine individuals who had speech/behavior profiles that aroused clinical suspicion of ASD, five had formal evaluations, and three had PDD-NOS. Of the 19 microduplications with parental testing, five were de novo, nine were maternally inherited, and five were paternally inherited. A majority with the microduplication had delayed development and/or specific deficits in speech or language, though these features were not as consistent as seen with the microdeletions. This study, which is the largest cohort of individuals with 16p11.2 alterations reported to date, suggests that 16p11.2 microdeletions and microduplications are associated with a high frequency of cognitive, developmental, and speech delay and behavior abnormalities. Furthermore, although features associated with these alterations can be found in individuals with ASD, additional factors are likely required to lead to the development of ASD
"Who am I? Where am I?" Experiences of married young women in a slum in Islamabad, Pakistan
Background: According to the cultural tradition in Pakistan, young women belonging to poor families should
marry shortly after menarche. However, existing data show that young people, especially women, are not
prepared for sexual life and have poor knowledge about sexuality and reproductive health. Many of the
difficulties young women experience are related to beliefs and expectations in the society related to their
reproductive roles making them more vulnerable to reproductive ill health.
Aim: The study explores the preparedness of young women for married life (communicating with spouse,
initiation of sexual activity and child bearing) and ability to negotiate in marriage with spouse on number of
children to have and on contraceptive use.
Methods: In order to obtain an in-depth understanding of young women’s lives qualitative and quantitative
approaches were used. Three qualitative studies using narrative and content analysis were carried out in a slum
setting in the outskirts of Islamabad city in Pakistan. Married young women (I), unmarried young women (II) and
parents (III) were selected with the help of a community worker. Young married women were interviewed three
times at different occasions. Narrative structuring was used to explore how the participants represented their
situation. In addition twenty qualitative interviews and three focus group discussions were conducted with young
unmarried women (II). Twenty-five parents participated in four gender specific focus group discussions (III).
Content analysis was used for analysis of study II and III. For the quantitative study (IV), a subset of 1803
married young women aged 15-24 years was drawn from a nationally representative adolescent and youth survey
conducted in Pakistan in 2001-2002 by the Population Council. Regression models were used for analysing the
following outcomes: reported agreement with spouse on the number of children to have, current use of
contraceptives, intention to use contraceptives in the future and the time elapsed between marriage and the first
contraceptive use. Key co-variates of interest were variables that measure the involvement of young women in
their marriage as having a say in selection of spouse, mobility outside the household, social role and decision
making in their homes.
Results: The main theme in all the qualitative studies was ‘socialisation of young women into submissiveness’.
For the married young women two themes were identified a) submissive-accepting and
b) submissive-victims. The married young women who belonged to the accepting group lived under compromised
conditions but described themselves as satisfied with their situation. Women belonging to the victimized group
experienced physical and verbal abuse for their inability to cope with the duties of a wife, caretaker of the home
and bearer of children. Their situation was compounded by the power dynamics within the household (I). For the
unmarried young women the main theme identified was security lies in obedience. The two sub-themes
contributing to the main theme were socialisation into submissiveness and transition into adulthood in silence
(II). The theme and the sub-themes illustrate the situation of young women in a poor setting in Pakistan. The main
theme identified in the study with the parents was ‘Good parents’ strive to raise ‘innocent daughters’. The three
sub-themes contributing to the main theme were: a daughter - a responsibility and a burden, social and sexual
innocence and parents’ roles in the preparation for marriage. The theme and the sub-themes illustrate how the
parents saw themselves as responsible for raising ‘innocent daughters’ and arranging good marriages (III). The
quantitative study on the married young women showed that having a say in the selection of spouse at the time of
marriage was significantly associated with agreeing with spouse over the number of children to have, intention to
use contraceptives and the time between marriage and first contraceptive use. These relationships existed after
controlling for education, socioeconomic status, mobility outside of house and decision making in the home (IV).
Conclusions: In a culture of silence around sexuality, young women’s socialisation into submissiveness lays the
foundation for the lack of control over their future reproductive health (I and II). The parents realised, though, that
bringing up daughters for marriage requires not only obedience, but also building confidence and knowledge
during their childhood (III). Women who had decision making freedom in their parental home carried this ability
with them into marriage in their new home and were better able to negotiate about their fertility (IV). Knowledge
about reproductive life could prepare young women better for the future life and give them more control of their
fertility. Innovative interventions targeting women need to challenge current societal norms of womanhood to
promote the upbringing of confident and knowledgeable young women
E. coli metabolic protein aldehydealcohol dehydrogenase-E binds to the ribosome: a unique moonlighting action revealed
It is becoming increasingly evident that a high degree of regulation is involved in the protein synthesis machinery entailing more interacting regulatory factors. A multitude of proteins have been identified recently which show regulatory function upon binding to the ribosome. Here, we identify tight association of a metabolic protein aldehyde-alcohol dehydrogenase E (AdhE) with the E. coli 70S
ribosome isolated from cell extract under low salt wash conditions. Cryo-EM reconstruction of the ribosome sample allows us to localize its position on the head of the small subunit, near the mRNA entrance. Our study demonstrates substantial RNA unwinding activity of AdhE which can account for the ability of ribosome to translate through downstream of at least certain mRNA helices. Thus far, in
E. coli, no ribosome-associated factor has been identified that shows downstream mRNA helicase activity. Additionally, the cryo-EM map reveals interaction of another extracellular protein, outer membrane protein C (OmpC), with the ribosome at the peripheral solvent side of the 50S subunit. Our result also provides important insight into plausible functional role of OmpC upon ribosome binding.
Visualization of the ribosome purified directly from the cell lysate unveils for the first time interactions
of additional regulatory proteins with the ribosom
Association of various reproductive rights, domestic violence and marital rape with depression among Pakistani women
<p>Abstract</p> <p>Background</p> <p>Depression among women is common in developing countries. Gender inequality can contribute to women's risk for depression. Lack of reproductive and sexual rights is an important marker of gender inequality and women do not have the freedom to express their reproductive and sexual needs in many parts of the world. Therefore we designed this study to determine the association of depression with lack of various reproductive rights and domestic violence among married women in Karachi, Pakistan.</p> <p>Methods</p> <p>A case-control study with 152 cases and 152 controls, which included women 15-48 years, recruited from two teaching hospitals from 1<sup>st </sup>June 2007 through 31<sup>st </sup>August 2007. The SRQ was administered to all subjects. A cut off score of 8 was used to confirm cases of depression diagnosed by physicians, and to exclude cases of depression from the controls. Self-administered questionnaire was used to assess the risk factors.</p> <p>Results</p> <p>61% of the cases and 43% of the controls were ever abused by spouse and the frequency of marital rape was 33% in cases and 13% in controls. After adjusting for the effects of other variables in the model, less than 18 years of age at marriage (OR 2.00; 95% CI = 1.07, 3.7), decision for marriage by parents (OR 3.51; 95% CI = 1.67, 7.37), abuse by in laws (OR 4.91; 95% CI = 2.66, 9.06), ≤ 3 hours per day spent with husband (OR 2.33; 95% CI = 1.34, 4.08), frequency of intercourse ≤ 2 times per week (OR 1.85; 95% CI = 1.06, 3.22) and marital rape (OR 3.03; 95% CI = 1.50, 6.11) were associated with depression among women.</p> <p>Conclusion</p> <p>In our study depression in married women was associated with younger age at marriage, lack of autonomy in marriage decisions, marital rape and domestic abuse by in-laws. Efforts should be directed towards creating awareness about the reproductive and sexual rights of women in Pakistan. Physicians should be trained to screen and identify women who may be at risk for psychological distress as a result of denial of reproductive rights so that they can support positive mental health outcomes through individual, family or marital counseling.</p
Search for new phenomena in final states with an energetic jet and large missing transverse momentum in pp collisions at √ s = 8 TeV with the ATLAS detector
Results of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses 20.3 fb−1 of √ s = 8 TeV data collected in 2012 with the ATLAS detector at the LHC. Events are required to have at least one jet with pT > 120 GeV and no leptons. Nine signal regions are considered with increasing missing transverse momentum requirements between Emiss T > 150 GeV and Emiss T > 700 GeV. Good agreement is observed between the number of events in data and Standard Model expectations. The results are translated into exclusion limits on models with either large extra spatial dimensions, pair production of weakly interacting dark matter candidates, or production of very light gravitinos in a gauge-mediated supersymmetric model. In addition, limits on the production of an invisibly decaying Higgs-like boson leading to similar topologies in the final state are presente
Validity of willingness to pay measures under preference uncertainty
This paper is part of the project ACCEPT, which is funded by the German Federal Ministry for Education and Research (grant number 01LA1112A). The publication of this article was funded by the Open Access fund of the Leibniz Association. All data is available on the project homepage (https://www.ifw-kiel.de/forschung/umwelt/projekte/accept) and from Figshare (https://dx.doi.org/10.6084/m9.figshare.3113050.v1).Recent studies in the marketing literature developed a new method for eliciting willingness to pay (WTP) with an open-ended elicitation format: the Range-WTP method. In contrast to the traditional approach of eliciting WTP as a single value (Point-WTP), Range-WTP explicitly allows for preference uncertainty in responses. The aim of this paper is to apply Range-WTP to the domain of contingent valuation and to test for its theoretical validity and robustness in comparison to the Point-WTP. Using data from two novel large-scale surveys on the perception of solar radiation management (SRM), a little-known technique for counteracting climate change, we compare the performance of both methods in the field. In addition to the theoretical validity (i.e. the degree to which WTP values are consistent with theoretical expectations), we analyse the test-retest reliability and stability of our results over time. Our evidence suggests that the Range-WTP method clearly outperforms the Point-WTP method.Publisher PDFPeer reviewe
CLEC5A Regulates Japanese Encephalitis Virus-Induced Neuroinflammation and Lethality
CLEC5A/MDL-1, a member of the myeloid C-type lectin family expressed on macrophages and neutrophils, is critical for dengue virus (DV)-induced hemorrhagic fever and shock syndrome in Stat1−/− mice and ConA-treated wild type mice. However, whether CLEC5A is involved in the pathogenesis of viral encephalitis has not yet been investigated. To investigate the role of CLEC5A to regulate JEV-induced neuroinflammation, antagonistic anti-CLEC5A mAb and CLEC5A-deficient mice were generated. We find that Japanese encephalitis virus (JEV) directly interacts with CLEC5A and induces DAP12 phosphorylation in macrophages. In addition, JEV activates macrophages to secrete proinflammatory cytokines and chemokines, which are dramatically reduced in JEV-infected Clec5a−/− macrophages. Although blockade of CLEC5A cannot inhibit JEV infection of neurons and astrocytes, anti-CLEC5A mAb inhibits JEV-induced proinflammatory cytokine release from microglia and prevents bystander damage to neuronal cells. Moreover, JEV causes blood-brain barrier (BBB) disintegrity and lethality in STAT1-deficient (Stat1−/−) mice, whereas peripheral administration of anti-CLEC5A mAb reduces infiltration of virus-harboring leukocytes into the central nervous system (CNS), restores BBB integrity, attenuates neuroinflammation, and protects mice from JEV-induced lethality. Moreover, all surviving mice develop protective humoral and cellular immunity against JEV infection. These observations demonstrate the critical role of CLEC5A in the pathogenesis of Japanese encephalitis, and identify CLEC5A as a target for the development of new treatments to reduce virus-induced brain damage
- …