Meet the Team

Clinician (GP), Researcher
Graham Exelby
Graduated from University of Queensland in 1973, working in Southport then Charters Towers, Mt Isa then Texas (Qld) before returning to the Gold Coast in 1978 at Mermaid Beach. He was joined by Jack Ashwin in 1985, and they built the Mermaid Central Medical Clinic which opened in 1991. The Clinic now welcomes his daughter Leigh as a GP.
His primary areas of interest are Long Covid, POTS and their co-morbidities, especially migraine, IBS and fibromyalgia. He has been researching POTS and Fibromyalgia for over 10 years, and now works with Dr Valerio Vittone (Ph.D) in DNA and disease association, Mr David Haynes in Kiiko Matsumoto acupuncture in management of autonomic instability, and has 12 years of cardiovascular research with emphasis on retinal photography and carotid intimal thickness as tools to improve risk assessment. This has been now shown to be applicable to monitoring cardiovascular risk in Long Covid.
His particular speciality is linking the various DNA mutations, in particular mast cell mutations, with dietary, mechanical and other factors that affect the autonomic system (dysautonomia), craniovascular dysfunction and glymphatic dysfunction.
This complex system has particular relevance in the research that is commencing around the world into glymphatic dysfunction in Alzheimers and Parkinson’s Diseases.

Genetic counsellor, Molecular Biologist
Valerio Vittone
I am a genetic counsellor and founder of DrValerioVittone.com. I have been consulting with patients regarding their DNA, epigenetic, DNA/RNA Microbiome & nutrigenomic reports (i.e. Consultations are based on a novel DNA testing system and platform that uses genotype imputation and Artificial Intelligence (AI) capable of analyzing up to 85 MILLION genetic variants)
.
This system, in combination with our genetic, Biochemistry & Molecular Biology expertise delivers better results, providing the patients with more accurate recommendations than well-known commercial DNA tests such as Nebula & 23andme. We also use Viome with regards to Microbiome transcriptome analysis - to correlate the patient’s microbiome RNA expression profiles to their genetic variants SNPs.
Our German-based DNA sequencing facility can cover 1000s of clinically relevant genes (i.e. Single Nucleotide Polymorphism SNPs) broadly across eight sections (i.e. Digestion, Methylation, Hormones, Neurotransmitters, Inflammation and Antioxidant Protection, Detoxification, DNA protection and repair, Cardiovascular Health).