Microbial gut evaluation in an angolan paediatric population with sickle cell diseaseOriginal paper
Karen Pendergrass is a microbiome researcher specializing in microbiome-targeted interventions (MBTIs). She systematically analyzes scientific literature to identify microbial patterns, develop hypotheses, and validate interventions. As the founder of the Microbiome Signatures Database, she bridges microbiome research with clinical practice. In 2012, based on her own investigative research, she became the first documented case of FMT for Celiac Disease, four years before the first published case study.
Read MoreWhat was studied?
Researchers characterized the gut microbiome of Angolan children with sickle cell anaemia (SCA), comparing it to healthy siblings as controls. This was the first microbiota analysis conducted in an Angolan paediatric population with sickle cell disease.
How was it studied?
The team collected 72 stool samples from children aged 3 to 14 years, 36 with SCA and 36 healthy siblings. Bacterial 16S rRNA gene sequencing was performed and taxonomic differences were tested with Welch's test.
What did they find?
Children with SCA had significantly more Actinobacteria (5.47% versus 3.25% in siblings, p = 0.013) and more Coriobacteriaceae, a family within that phylum (p = 0.042). At the genus level, Clostridium cluster XI bacteria was more prevalent in SCA children, while siblings showed higher Blautia, Aestuariispira, Campylobacter, Helicobacter, Polaribacter and Anaerorhabdus.
Why it matters
The gut microbiome is thought to drive inflammation and aged-neutrophil production that fuel vaso-occlusive crises in sickle cell disease. Documenting these microbial differences supports future exploration of probiotics, prebiotics or faecal microbiota transfer as adjunct therapies, though the authors stress more research is needed.