Neurology · 2014
Submandibular gland needle biopsy for the diagnosis of Parkinson disease.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Adler Charles H, Dugger Brittany N, Hinni Michael L, Lott David G, Driver-Dunckley Erika, Hidalgo Jose, Henry-Watson Jonette, Serrano Geidy, Sue Lucia I, Nagel Thomas, Duffy Amy, Shill Holly A, Akiyama Haruhiko, Walker Douglas G, Beach Thomas G
Аннотация
OBJECTIVE: This study investigates salivary gland biopsies in living patients with Parkinson disease (PD).
METHODS: Patients with PD for ≥5 years underwent outpatient transcutaneous needle core biopsies (18-gauge or 16-gauge) of 1 submandibular gland. Minor salivary glands were removed via a small incision in the lower lip. Tissue was fixed in formalin and serial 6-µm paraffin sections were immunohistochemically stained for phosphorylated α-synuclein and reviewed for evidence of Lewy type α-synucleinopathy (LTS).
RESULTS: Fifteen patients with PD were biopsied: 9 female/6 male, mean age 68.7 years, mean PD duration 11.8 years. Twelve of the needle core biopsies had microscopically evident submandibular gland tissue to assess and 9/12 (75%) had LTS. Only 1/15 (6.7%) minor salivary gland biopsies were positive for LTS. Five patients had an adverse event; all were minor and transient.
CONCLUSIONS: This study demonstrates the feasibility of performing needle core biopsies of the submandibular gland in living patients with PD to assess LTS. Although this was a small study, this tissue biopsy method may be important for tissue confirmation of PD in patients being considered for invasive procedures and in research studies of other PD biomarkers.
METHODS: Patients with PD for ≥5 years underwent outpatient transcutaneous needle core biopsies (18-gauge or 16-gauge) of 1 submandibular gland. Minor salivary glands were removed via a small incision in the lower lip. Tissue was fixed in formalin and serial 6-µm paraffin sections were immunohistochemically stained for phosphorylated α-synuclein and reviewed for evidence of Lewy type α-synucleinopathy (LTS).
RESULTS: Fifteen patients with PD were biopsied: 9 female/6 male, mean age 68.7 years, mean PD duration 11.8 years. Twelve of the needle core biopsies had microscopically evident submandibular gland tissue to assess and 9/12 (75%) had LTS. Only 1/15 (6.7%) minor salivary gland biopsies were positive for LTS. Five patients had an adverse event; all were minor and transient.
CONCLUSIONS: This study demonstrates the feasibility of performing needle core biopsies of the submandibular gland in living patients with PD to assess LTS. Although this was a small study, this tissue biopsy method may be important for tissue confirmation of PD in patients being considered for invasive procedures and in research studies of other PD biomarkers.