Mohamed Belhocine

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Combinations of post-translational histone modifications shape the chromatin landscape during cell development in eukaryotes. However, little is known about the modifications exactly delineating functionally engaged regulatory elements. For example, although histone H3 lysine 4 mono-methylation (H3K4me1) indicates the presence of transcriptional gene(More)
Divergent transcription is a wide-spread phenomenon in mammals. For instance, short bidirectional transcripts are a hallmark of active promoters, while longer transcripts can be detected antisense from active genes in conditions where the RNA degradation machinery is inhibited. Moreover, many described long non-coding RNAs (lncRNAs) are transcribed(More)
The transcription of essentially the entire eukaryotic genome generates a myriad of non-coding RNA species that show complex overlapping patterns of expression and regulation. In the last decade, several large scale genomic analyses have shed light on the widespread existence of long non-coding RNAs (lncRNAs) in mammals. Although the function of most(More)
In 1984-85 an epidemiological survey on asthma was carried out on a representative population sample in the "Daira de Chéraga" region in Algeria. It had two objectives: to estimate the prevalence of asthma and to describe its epidemiological pattern. The study was divided into two parts: the first was a household survey based on a questionnaire and the(More)
V(D)J recombination assembles Ag receptor genes during lymphocyte development. Enhancers at AR loci are known to control V(D)J recombination at associated alleles, in part by increasing chromatin accessibility of the locus, to allow the recombination machinery to gain access to its chromosomal substrates. However, whether there is a specific mechanism to(More)
The Libyan jird (Meriones libycus) is a nocturnal Saharan Rodent submitted to a seasonal cycle of reproduction characterized by a short active period during spring and beginning of summer, and a long phase of sexual quiescence from the end of summer until the end of winter. During this cycle, the male reproductive organs, and more particularly seminal(More)
T-cell acute lymphoblastic leukemia (T-ALL) results from leukemic transformation of T-cell precursors arrested at specific differentiation stages, including an 'early-cortical' thymic maturation arrest characterized by expression of cytoplasmic TCRβ but no surface TCR and frequent ectopic expression of the TLX1/3 NK-Like homeotic proteins (NKL). We designed(More)
SETTING Zeralda health district, Algeria. OBJECTIVE To analyse the impact of asthma refresher courses on the knowledge, attitudes and practice of general practitioners (GPs) working in primary health centres (PHC); to improve the system of referral between the PHCs and the district reference centre; and to measure the impact of the intervention on the(More)