Khalid Sadki

Faculty of Sciences, University Mohammed V, Rabat, Morocco · Biology

Introduction: Human immunodeficiency virus (HIV) / hepatitis B virus (HBV) causes higher rates of liver disease compared to infection with just one virus. Co-infection can accelerate the progression to liver fibrosis or hepatocellular carcinoma and disturb the treatment response. APOBEC3G is a host defense factor which interferes with HIV-1 and HBV...

Background The coronavirus disease 2019 (COVID-19) is an infectious disease, caused by the new coronavirus known as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), and exhibits diverse clinical outcomes and symptoms in infected individuals, emphasizing the need to investigate how human genetic diversity influences the virus’s impact....

The 14th African Society of Human Genetics (AfSHG) Morocco Meeting and 2nd International Congress of the Moroccan Society of Genomics and Human Genetics (SM2GH), held in Rabat, Morocco, from December 12 through 17, 2022, brought together 298 attendees from 23 countries, organized by the AfSHG in collaboration with the SM2GH. The conference’s overar...

Background: Chlamydia pneumoniae (C. pneumoniae) is a respiratory pathogen associated with chronic inflammatory and its detection in human lung cancer suggests its involvement in cancerogenesis. Our study aimed to evaluate the association between C. pneumoniae infection and Lung Cancer disease in Moroccans patients and control cohorts, through a m...

Psoriasis still has an unknown etiology. Genetic predisposition shows the association between HLA-Cw6 allele and psoriasis. Although biotherapies have been proven effective in psoriasis treatment, methotrexate (MTX) is still used as a first-line systemic therapy due to its efficacy/affordability, but the differential response to MTX is mostly relat...

Background COVID-19 is a respiratory disease caused by a novel coronavirus called as Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). Detected for the first time in December 2019 in Wuhan and it has quickly spread all over the world in a couple of months and becoming a world pandemic. Symptoms of the disease and clinical outcomes are v...

APOBEC3G protein is a cytidine deaminase with strong antiviral activity acting as part of the antiviral innate immunity. It plays an important role in restricting intracellular HIV-1 replication. Two APOBEC3G allelic variants H186R rs8177832 and rs35228531 were shown to be associated with risk to HIV infection and also to the collapse of the immune...

SARS-Cov-2 or the severe acute respiratory syndrome Coronavirus 2, since its appearance in December 2019 in Wuhan City of China, it has not stopped creating disasters in different countries of the world. It has warranted an epidemic outburst of respiratory disease called as Covid-19 by the WHO. To curb the spread of the epidemic, Morocco has put...

Objective and design Mesenchymal stromal cells (MSCs) are currently used in cell reparative medicine due to their trophic and ant-inflammatory properties. The modulation of stem cell properties by phytochemicals has been suggested as a tool to empower their tissue repair capacity. In vitro, MSCs are characterized by their tri-lineage potential that...

Background 15q26 deletion is a relatively rare chromosomal disorder, and it is described only in few cases. Patients with this aberration show many signs and symptoms, particularly pre- and postnatal growth restriction, developmental delay, microcephaly, intellectual disability and various congenital malformations. Case presentation We report on a...

Myeloproliferative syndromes are cell proliferation involving one or more medullary lines without blocking maturation. Chronic myeloid leukemia (CML) is the most common of these syndromes, it corresponds to the monoclonal proliferation of a multipotent stem cell; the myeloblastic or lymphoblastic transformation of CM. has a poor prognosis. The Phil...

Acute myeloid leukemia (AML) is a cancer of the myeloid lineage of blood cells, and treatment for AML is lengthy and can be very expensive. Medicinal plants and their bioactive molecules are potential candidates for improving human health. In this work, we studied the effect of Ptychotis verticillata (PV) essential oil and its derivatives, carvacro...

Background Corneal dystrophies (CDs) are a heterogeneous group of bilateral, genetically determined, noninflammatory bilateral corneal diseases that are usually limited to the cornea. CD is characterized by a large variability in the age of onset, evolution and visual impact and the accumulation of insoluble deposits at different depths in the corn...

https://www.ahajournals.org/doi/abs/10.1161/CIRCRESAHA.120.317703

(17/September/2020) This manuscript has now been peer-reviewed and published by Circulation Research: https://www.ahajournals.org/doi/10.1161/CIRCRESAHA.120.317703 ----------------------------------------------------------------------------------------------------------------- Rationale: In addition to the overwhelming lung inflammation that pr...

COVID-A9 is an infection disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), declared as a pandemic due to its rapid expansion worldwide. In this study we investigate the genetic diversity and genomic epidemiology of SARS-CoV-2 using 22 virus genome sequences reported by three different laboratories in Morocco till the d...

Background 15q26 deletion is a relatively rare chromosomal disorder described in only few cases. Patients with this aberration display numerous symptoms particularly pre- and postnatal growth restriction, microcephaly, intellectual disability, dysmorphic gestalt, and various congenital malformations. Case presentation We report on a girl, four year...

Background 15q26 deletion is a relatively rare chromosomal disorder described in only few cases. Patients with this aberration display numerous symptoms particularly, pre- and postnatal growth restriction, microcephaly, intellectual disability, dysmorphic gestalt and various congenital malformations. Case presentation We report on a girl, four year...

Background: Corneal dystrophy (CDs) is a heterogeneous group disease, genetically determined non-inflammatory bilateral corneal diseases (usually limited to the cornea). CD is characterized by a large variability in the age of onset, evolution and visual impact and the accumulation of insoluble deposits at different depths of the cornea. Clinical s...

Background: Corneal dystrophies (CDs) are a heterogeneous group of bilateral, genetically determined, non-inflammatory bilateral corneal diseases which are usually limited to the cornea. CD is characterized by a large variability in the age of onset, evolution and visual impact and the accumulation of insoluble deposits at different depths of the c...

Background: Corneal dystrophies (CDs) are a heterogeneous group of bilateral, genetically determined, non-inflammatory bilateral corneal diseases which are usually limited to the cornea. CD is characterized by a large variability in the age of onset, evolution and visual impact and the accumulation of insoluble deposits at different depths of the...

Background: Corneal dystrophies (CDs) are a heterogeneous group of bilateral, genetically determined, non-inflammatory bilateral corneal diseases which are usually limited to the cornea. CD is characterized by a large variability in the age of onset, evolution and visual impact and the accumulation of insoluble deposits at different depths of the c...

Background: Corneal dystrophies (CDs) are a heterogeneous group of bilateral, genetically determined, noninflammatory bilateral corneal diseases that are usually limited to the cornea. CD is characterized by a large variability in the age of onset, evolution and visual impact and the accumulation of insoluble deposits at different depths in the cor...

Background: The latest studies have shown the effectiveness of Chloroquine against Coronavirus. However, since the tolerance and effectiveness of statistical data must be taken into account before proposing treatment to a patient, these promising results are often lacking. Since the CYP2C8, CYP2D6 and CYP3A Absorption, Distribution, Metabolism and...

Mesenchymal stromal cells (MSCs) represent a progenitor cell population with several biological properties. MSCs are thus of therapeutic interest for cell-based therapy but great efforts are needed to enhance their efficiency and safety. Herbal remedies and in particular their bioactive molecules, are potential candidates for improving human health...

Background Tuberculosis (TB) remains a global health problem. Several studies have implicated genetic host factors in predisposing populations to TB disease. In this study, we have selected NSMAF (Neutral Sphingomyelinase Activation Associated Factor) as a candidate gene to evaluate its level of association with TB disease in a Moroccan population...

Tuberculosis (TB) is a serious infectious disease that kills approximately two million people per year, particularly in low- and middle-income countries. Numerous genetic epidemiology studies have been conducted of many ethnic groups worldwide and have highlighted the critical impact of the genetic environment on TB distribution. Many candidate gen...

Automated DNA sequencers produce chromatogram files in ABI Format. When viewing chromatograms, some ambiguities are shown at various sites along the DNA sequences, because the program implemented in the sequencing machine and used to call bases cannot always precisely determine the right nucleotide, especially when it is represented by either a bro...

Background Vitamin A plays numerous roles in immune system. Its deficiency alters both the innate and adaptive immunity. Previous results reported that the micronutrients deficiency, particularly vitamin A, is observed in patients with tuberculosis. Thus, we aimed in this study to assess vitamin A concentrations in Moroccan patients with tuberculos...

Background: Although pockets of bioinformatics excellence have developed in Africa, generally, large-scale genomic data analysis has been limited by the availability of expertise and infrastructure. H3ABioNet, a pan-African bioinformatics network, was established to build capacity specifically to enable H3Africa (Human Heredity and Health in Afric...

The application of genomics technologies to medicine and biomedical research is increasing in popularity, made possible by new high-throughput genotyping and sequencing technologies and improved data analysis capabilities. Some of the greatest genetic diversity among humans, animals, plants, and microbiota occurs in Africa, yet genomic research out...

The application of genomics technologies to medicine and biomedical research is increasing in popularity, made possible by new high-throughput genotyping and sequencing technologies and improved data analysis capabilities. Some of the greatest genetic diversity among humans, animals, plants and microbiota occurs in Africa, yet genomic research outp...

Standard 24-locus Mycobacterial Interspersed Repetitive Unit Variable Number Tandem Repeat (MIRU-VNTR) typing allows to get an improved resolution power for tracing TB transmission and predicting different strain (sub) lineages in a community. During 2010-2012, a total of 168 Mycobacterium tuberculosis Complex (MTBC) isolates were collected by clus...

The aim of the present study was to determine the prevalence of human leukocyte antigen HLA-B27 in Moroccan healthy controls and in patients with ankylosing spondylitis (AS), and to analyze the correlation between HLA-B27 and AS in Moroccan patients. The prevalence of HLA-B27 was determined by evaluating the number of HLA-B27-positive samples in 12...

Background: Acute gastroenteritis is a serious cause of child mortality and morbidity in resource-limited countries. A viral etiology is most common, and rotavirus and norovirus are reported to be the leading causative agents. There are still few epidemiological data on the simultaneous occurrence of these viruses in Morocco. The aim of this study...

Introduction: Despite the medical progress in treatment. Tuberculosis (TB) continues to be a serious global health problem. A genome-wide linkage study identified a major susceptibility locus on chromosomal region 8q12-q13 in Moroccan TB patients. The CYP7A1 gene is located in this region and codes for cholesterol 7a-hydroxylase, an enzyme involved...

Worldwide, tuberculosis (TB) is a major public health problem and the rapid diagnosis and appropriate chemotherapy become the first priority and a serious challenge to improve TB treatment. In the objective of early TB diagnosis and rapid detection of Mycobacterium tuberculosis (MTB) in the clinical specimens, the utility of the Polymerase Chain Re...

In order to investigate the influence of functional polymorphisms of macrophage migration inhibitory factor (MIF), Fcg receptors CD16A (FCGR3A) and CD32A (FCGR2A) genes on susceptibility to pulmonary tuberculosis (PTB) in the Moroccan population, we analyzed 123 patients with PTB and 154 healthy controls. The genotyping for MIF-173 (G/C) (rs755622)...

Background: Rapid, simple, and new diagnostic tools are needed for the diagnosis of tuberculosis (TB). The aim of this study is to identify a combination of Mycobacterium tuberculosis (Mtb) peptides useful for the serodiagnosis of active pulmonary tuberculosis (TBp). Methods: Fifty-seven B-cell epitopes peptides of Mtb were selected by in silico me...

Tuberculosis (TB) remains a major cause of morbidity and mortality worldwide. Mycobacterium tuberculosis is the causal agent of this infection and its major receptor is CD209 which is expressed on human Dendritic Cells (DC). This interaction could influence bacterial persistence and immunity response. The aim of this study was to evaluate the funct...

Two sample panels: 1) 20 pulmonary tuberculosis (PTB) patients and 10 healthy subjects from a country with a low incidence of TB (Italy); and 2) 47 PTB patients and 26 healthy subjects from a country with a high incidence of TB (Morocco). To identify a combination of Mycobacterium tuberculosis peptides useful for the serodiagnosis of active PTB. Fi...

Mycobacterium tuberculosis, the causal agent of pulmonary tuberculosis (TB), remains a major health problem throughout the world causing high mortality in humans. Previous studies showed that several genes may play crucial roles in susceptibility to TB. The PTPN22 gene encodes the lymphoid tyrosine phosphatase that has an important regulatory effec...

In vitro diagnosis of MTB-infection uses MTB-proteins coded for by genes of the region of differentiation 1 (RD1) of the MTB genome. This study wants to test if proteins preferentially expressed during MTB-intracellular growth might provide new targets for the diagnosis of MTB-infection. To this end seventy-five multiepitopic HLA-promiscuous MTB-pe...

A novel HLA-B∗39 variant, found in an African patient with sickle cell anemia undergoing bone marrow transplantation is described. Initially suspected by inconsistent serological typing (B-blank, Bw6), then recognized by PCR-SSP, and finally characterized by nucleotide sequencing, this novel allele is designated HLA-B∗3916. It differs from HLA-B∗39...

We describe in this work a novel HLA-B null allele designated B*4022N. This new variant was found in a Caucasian individual who was serologically typed for one HLA-B allele as a B-blank, Bw-blank. Retrospective DNA typing by polymerase chain reaction using sequence-specific primers (PCR-SSP) has established the correspondence of this blank allele w...

This work was supported by Grants from EFG and LNCC. We report here an additional HLA-B*51 variant designated HLA-B*5116. Detected by an abnormal serological reactivity pattern, this variant was identified as a B*51 allele by polymerase chain reaction using sequence-specific primers (PCR-SSP) and characterized by nucleotide sequencing. The new vari...

On or before Jun 29, 2011 this sequence version replaced gi:9695290, gi:9695291, gi:9695289.