Beachleon7136
To investigate whether levels of perfectionism, organization, and intolerance of uncertainty predispose women to more negative birth experiences and post-partum post-traumatic stress symptoms (PTSS). Birth experience was also examined as a potential moderator of the relationship between levels of the personality traits and post-natal PTSS.
Prospective survey.
First-time expectant mothers (N=10,000) were contacted via Emma's Diary during the perinatal period. At 32-42weeks' gestation, participants completed measures examining the three personality traits and prenatal mood. At 6-12weeks' post-partum, instruments assessing childbirth experience, birth trauma, PTSS, and post-natal mood were completed. Data from 418 women were analysed.
Higher perfectionism and intolerance of uncertainty were associated with more negative birth appraisals and PTSS. Organization was unrelated to birth experience or PTSS. In a regression, higher intolerance of uncertainty and perfectionism statistically predicted more negatiedisposing and obstetric risk factors that partially explain experiences of unsatisfactory births and post-partum post-traumatic stress.
Women who expect themselves to be more perfect or who find it more difficult to cope with uncertainty had more negative experiences of childbirth. Women with higher levels of perfectionism were more likely to experience more symptoms of post-traumatic stress during the early post-natal period. Being more perfectionistic continued to have a more negative effect on women's well-being after birth, regardless of whether they had a positive or negative experience of birth. Integrating these findings into antenatal discussion around birth preferences would increase women's awareness of predisposing and obstetric risk factors that partially explain experiences of unsatisfactory births and post-partum post-traumatic stress.
The majority of people with suspected genetic dystonia remain undiagnosed after maximal investigation, implying that a number of causative genes have not yet been recognized. We aimed to investigate this paucity of diagnoses.
We undertook weighted burden analysis of whole-exome sequencing (WES) data from 138 individuals with unresolved generalized dystonia of suspected genetic etiology, followed by additional case-finding from international databases, first for the gene implicated by the burden analysis (VPS16), and then for other functionally related genes. Electron microscopy was performed on patient-derived cells.
Analysis revealed a significant burden for VPS16 (Fisher's exact test p value, 6.9 × 10
). VPS16 encodes a subunit of the homotypic fusion and vacuole protein sorting (HOPS) complex, which plays a key role in autophagosome-lysosome fusion. A total of 18 individuals harboring heterozygous loss-of-function VPS16 variants, and one with a microdeletion, were identified. These individuals experienced early onset progressive dystonia with predominant cervical, bulbar, orofacial, and upper limb involvement. Some patients had a more complex phenotype with additional neuropsychiatric and/or developmental comorbidities. We also identified biallelic loss-of-function variants in VPS41, another HOPS-complex encoding gene, in an individual with infantile-onset generalized dystonia. Electron microscopy of patient-derived lymphocytes and fibroblasts from both patients with VPS16 and VPS41 showed vacuolar abnormalities suggestive of impaired lysosomal function.
Our study strongly supports a role for HOPS complex dysfunction in the pathogenesis of dystonia, although variants in different subunits display different phenotypic and inheritance characteristics. ANN NEUROL 2020;88867-877.
Our study strongly supports a role for HOPS complex dysfunction in the pathogenesis of dystonia, although variants in different subunits display different phenotypic and inheritance characteristics. ANN NEUROL 2020;88867-877.Streptomyces spp. selleck kinase inhibitor are a rich source for natural products with recognized industrial value, explaining the high interest to improve and streamline the performance of in these microbes. Here, we studied the production of pamamycins, macrodiolide homologs with a high activity against multiresistant pathogenic microbes, using recombinant Streptomyces albus J1074/R2. Talc particles (hydrous magnesium silicate, 3MgO·4SiO2 ·H2 O) of micrometer size, added to submerged cultures of the recombinant strain, tripled pamamycin production up to 50 mg/L. Furthermore, they strongly affected morphology, reduced the size of cell pellets formed by the filamentous microbe during the process up to sixfold, and shifted the pamamycin spectrum to larger derivatives. Integrated analysis of transcriptome and precursor (CoA thioester) supply of particle-enhanced and control cultures provided detailed insights into the underlying molecular changes. The microparticles affected the expression of 3,341 genes (56% of all genes), revealing aticle enhanced cultivation, widely used for filamentous microbes.Acute promyelocytic leukaemia (APL) represents a modern success of precision medicine. However, fatalities occurring within the first 30 days of induction treatment, in particular intracranial haemorrhage (ICH), remain the main causes of death. We studied the clinico-biological characteristics of 13 patients with APL who experienced ICH. Compared to 85 patients without this complication, patients with ICH were older and more frequently had high-risk APL. Moreover, positivity for the 'swirl' sign at neuroradiological imaging and hydrocephalus were predictors of a fatal outcome, together with lower fibrinogen, prolonged international normalized ratio (INR) and higher lactate dehydrogenase levels.Growth decoupling can be used to optimize the production of biochemicals and proteins in cell factories. Inhibition of excess biomass formation allows for carbon to be utilized efficiently for product formation instead of growth, resulting in increased product yields and titers. Here, we used CRISPR interference to increase the production of a single-domain antibody (sdAb) by inhibiting growth during production. First, we screened 21 sgRNA targets in the purine and pyrimidine biosynthesis pathways and found that the repression of 11 pathway genes led to the increased green fluorescent protein production and decreased growth. The sgRNA targets pyrF, pyrG, and cmk were selected and further used to improve the production of two versions of an expression-optimized sdAb. Proteomics analysis of the sdAb-producing pyrF, pyrG, and cmk growth decoupling strains showed significantly decreased RpoS levels and an increase of ribosome-associated proteins, indicating that the growth decoupling strains do not enter stationary phase and maintain their capacity for protein synthesis upon growth inhibition.