The transcription factor Traffic jam orchestrates the somatic piRNA pathway in Drosophila ovaries.

Transposable elements (TEs) pose a threat to genome integrity, and the piRNA pathway in animal gonads plays a crucial role in silencing TE activity. While the transcriptional regulation of the piRNA pathway components in germ cells has been documented in mice and flies, the mechanisms orchestrating the transcriptional program of the somatic piRNA pathway in Drosophila ovaries remains unresolved. Here, we demonstrate that Traffic jam (Tj), an orthologue of a large Maf transcription factor in mammals, is a master regulator of the piRNA pathway in ovarian somatic cells, playing a crucial role in maintaining TE silencing and genomic integrity in somatic tissues. We show that Tj directly binds to the promoters of somatic-enriched piRNA factors such as fs(1)Yb , nxf2 , panx , and armi , as well as the flamenco piRNA cluster, a major locus for TE silencing in somatic cells. Depletion of Tj in somatic follicle cells results in a significant downregulation of these piRNA factors, a complete loss of flam expression and de-repression of gypsy -family TEs, which have gained the ability to activate in ovarian somatic cells allowing them to infect germ cells and be transmitted to future generations. We have identified an enhancer carrying Tj binding motifs located downstream of the flam promoter that is essential for robust and tissue-specific flam expression in somatic follicle cells of the adult ovary. This work uncovers a previously unappreciated layer of transcriptional regulation of the piRNA pathway, and we propose that the arms race between the host and TEs has driven the evolution of promoters in piRNA genes and clusters to respond to a unique transcription factor thereby ensuring efficient silencing of gypsy -family TEs. Highlights: Traffic jam (Tj) acts as a master regulator of the somatic piRNA pathway in Drosophila . Tj directly controls the expression of the flamenco piRNA cluster, crucial for transposon silencing. Tj regulates a network of piRNA pathway genes, mirroring the gene-regulatory mechanism of A-MYB in the mouse testis.Cis-regulatory elements with Tj motifs are arranged in a palindromic sequence.

Snijders Blok-Campeau Syndrome: Description of 20 Additional Individuals with Variants in CHD3 and Literature Review.

Snijders Blok-Campeau syndrome (SNIBCPS, OMIM# 618205) is an extremely infrequent disease with only approximately 60 cases reported so far. SNIBCPS belongs to the group of neurodevelopmental disorders (NDDs). Clinical features of patients with SNIBCPS include global developmental delay, intellectual disability, speech and language difficulties and behavioral disorders like autism spectrum disorder. In addition, patients with SNIBCPS exhibit typical dysmorphic features including macrocephaly, hypertelorism, sparse eyebrows, broad forehead, prominent nose and pointed chin. The severity of the neurological effects as well as the presence of other features is variable among subjects. SNIBCPS is caused likely by pathogenic and pathogenic variants in CHD3 (Chromodomain Helicase DNA Binding Protein 3), which seems to be involved in chromatin remodeling by deacetylating histones. Here, we report 20 additional patients with clinical features compatible with SNIBCPS from 17 unrelated families with confirmed likely pathogenic/pathogenic variants in CHD3. Patients were analyzed by whole exome sequencing and segregation studies were performed by Sanger sequencing. Patients in this study showed different pathogenic variants affecting several functional domains of the protein. Additionally, none of the variants described here were reported in control population databases, and most computational predictors suggest that they are deleterious. The most common clinical features of the whole cohort of patients are global developmental delay (98%) and speech disorder/delay (92%). Other frequent features (51-74%) include intellectual disability, hypotonia, hypertelorism, abnormality of vision, macrocephaly and prominent forehead, among others. This study expands the number of individuals with confirmed SNIBCPS due to pathogenic or likely pathogenic variants in CHD3. Furthermore, we add evidence of the importance of the application of massive parallel sequencing for NDD patients for whom the clinical diagnosis might be challenging and where deep phenotyping is extremely useful to accurately manage and follow up the patients.

Transforming patient care by introducing an electronic medical records initiative in a developing country.

The incorporation of an electronic medical record into patient care is a priority in developed countries, but faces significant obstacles for adoption in developing countries. The goal of our study was to define and assess the efficiency of a personalized intervention on village physicians' use of electronic medical records in rural community health services of underprivileged areas. Six towns were selected with two bordering local health stations from each town. One was randomly given to the intervention group and the other to the control group. A structured on-site intervention was provided to village physicians in the intervention group, for 7 months. The results showed that in the intervention group, the percentage of households with complete records increased. The percentage of clinic medical records and complete child vaccination in the intervention group also increased from 2 to 14 percent (p = <0.05) and from 10 to 23 percent (p = 0.05), respectively. Our investigation demonstrated that on-site education, supervision, and technical support directly correlate with improved use of electronic medical record. Our results report the challenges in implementing such a system and the steps being taken to enhance likelihood of sustainability.

Estudio químico-bromatológico del "apio" (Apium Graveolands L.) liofilizado y fresca / Chemical bromatologic study of \"apio\"(Apium Graveolens L.) fresh and liophilizaded

Por su contenido en calcio, fósforo, fierro, el producto fresco del "apio", tiene un poder mineralizante apreciable, constituyendo también una fuente de vitaminas. El apio liofilizado es altamente higroscópico debido a su elevada parasidad y bajo contenido de humedad residual. El apio liofilizado en la evaluación organoléptica tiene un alto grado de aceptabilidad casi similar al producto fresco. Mediante los resultados obtenidos, la temperatura óptima de rehidratación es de 100ºC, alcanzando un 89 por ciento, en el producto liofilizado, produciendo una menor rehidratación a 60ºC y 20ºC respectivamente. La liofilización es un sistema eficaz para observar la sobreproducción agrícolas, permitiendo una reducción de peso, haciendo el costo de transporte más económico alargando a su vez el período de vida, siempre que estén protegidos convenientemente.