الفهرس 
Microscopic AnatomyOnly 14 pages are availabe for public view
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Abstract
Nasal pH has been the subject of sporadic interest for over half
a century. The pH of normal nasal in normal people was reported to
be within the range of 5.5 – 7.0 far back as 1941.
The nasal pH increases in rhinitis to 7.2-8.3. Both ciliary
function and mucus viscosity have been shown to be pH dependent
Ciliary beating is the commonest method for mucus clearing in
the nose and sinuses. Many factors affect efficient ciliary motion.
The optimum temperature for ciliary motion is between 32°C
and 37°C. Infections may increase pH above the normal 5.5 to 7.0
range, which will destroy cilia.
Many viruses, including the rhinoviruses most often
responsible for the common cold infect host cells by fusing with the
cell membrane at low pH. Thus a mildly acidic environment is
required for optimal infectivity of such pH-dependent viruses.
In this work, we study the nasal pH in normal individuals and
in different nasal pathology (allergic rhinitis, infective rhinitis and
nasal masses).
Summary
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We measure nasal pH in 60 patients with different nasal
pathology using litmus paper before and after using alkaline nasal
wash, as well as 20 normal individuals as control to compare their
results.
The study showed that there is significant increase in nasal
mucosal pH in allergic, infective and nasal masses compared to
normal individuals.
The study showed also, no significant change in nasal mucosal
pH as regards age.
Significant improvement of nasal pH after using alkaline nasal
wash in infective rhinitis, on contrary no significant changes occur in
allergic or nasal masses groups.
Various studies are however needed to discover the effect of
other isotonic, hyper- or hypo nasal wash and using saline nasal
wash on nasal pH, also, discover relation between nasal pH and
different factors as exercise, food, sleep as nasal pH regulates ciliary
movement and subsequently mucociliary clearance