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Biomedical subjects

David Albert

Publications and source records attributed to David Albert.

5 recordsLinked to original sources
PubMed2006

Development of a multiplex PCR assay for polymorphism analysis of Brucella suis biovars causing brucellosis in swine.

Swine brucellosis is caused by the biovars 1, 2 and 3 of Brucella suis the identification of which up to now relies on microbiological tests lacking adequate specificity together with time consuming and expensive molecular procedures. Based on sequence variation of the omp2b gene, we have developed a four primer set multiplex PCR assay that was tested for polymorphism analysis of B. suis biovars causing brucellosis in swine. The assay exploits the single nucleotide polymorphisms found in omp2b gene of B. suis reference biovars which are conserved in 43 B. suis field isolates from different geographic origins and hosts. Three specific amplification patterns (S1, S2 and S3) were obtained for reference strains of B. suis biovars 1, 2 and 3, respectively. However, some B. suis field isolates identified as biovars 2 or 3 according AMOS-PCR, PCR-RFLP of omp31 and omp2 genes and classical bacteriological methods, resulted also in S1 patterns, limiting the typing usefulness of the method.

Amino Acid Sequence↗
PubMed2003

Subglottic cysts: the Great Ormond Street experience.

OBJECTIVE: Subglottic cysts are a relatively rare, non-malignant cause of airway obstruction. In this study we reviewed the details of the patients who were treated for subglottic cysts in our department in order to evaluate the presentation and treatment of patients with this condition. METHODS: We performed a retrospective case note analysis of 55 patients with subglottic cysts. Case notes were examined to determine the following details for each patient: date of birth, gestational age at birth, history and length of intubation, age at presentation, presenting symptoms, findings on endoscopy, treatment given for subglottic cysts, recurrence(s) of cysts after initial treatment, and follow up for a minimum of 6 months post diagnosis. RESULTS: Fifty five patients were identified, 35 male, 20 female. Ninety four percent were born prematurely at 24-31 weeks gestation. All patients were intubated in the neonatal period. The median duration of intubation for all patients was 10 days (range 1-126). Fifty one patients underwent intervention for their subglottic cysts at their initial, diagnostic microlaryngoscopy and bronchoscopy (MLB), and recurrent cysts occurred in 22 cases. A total of 82 procedures for cyst removal were performed, using either the carbon dioxide laser or microinstruments. Subglottic stenosis was a commonly associated feature in our series of patients, being present in 38 patients. Eleven of the 14 patients who presented to our department with tracheostomies in situ were decannulated after removal of their subglottic cysts. CONCLUSIONS: This review of the largest series of patients with subglottic cysts reported to date, reinforces our view that such cysts are rare but potentially reversible causes of upper airway obstruction, and that they result from injury to the larynx as a result of endotracheal intubation. Treatment of the cysts will often be sufficient to correct the obstructed airway allowing successful extubation or decannulation of a tracheostomy. Patients who have had subglottic cysts treated should have access to long-term follow up as there is a tendency for these cysts to recur.

Bronchoscopy↗
PubMed2002

Addressing tobacco in managed care: a survey of dentists' knowledge, attitudes, and behaviors.

OBJECTIVES: This study assessed the tobacco cessation knowledge, attitudes, and behaviors of dentists participating in a large managed care dental plan. METHODS: Participating dentists in 4 states were surveyed via mail. RESULTS: Dentists' perceived success in helping patients quit using tobacco was highly correlated with discussion of specific strategies for quitting, advice about the use of nicotine gum, and time spent counseling patients. Dentists who were confident about their smoking cessation knowledge frequently advised patients to quit and spent more time counseling patients about tobacco cessation. CONCLUSIONS: Tobacco cessation is not a routine part of dental practice. Knowledge, time spent counseling patients, and specific strategies for quitting were associated with dentists' perceptions of success.

Attitude of Health Personnel↗
PubMed2002

Serving underserved and hard-core smokers in a dental school setting.

The dental profession has recognized tobacco cessation as an important part of comprehensive dental care, yet implementation of the Public Health Service clinical practice guideline on "Treating Tobacco Use and Dependence" remains a challenge. This is especially the case for patients presenting in dental clinics for whom smoking represents a large financial burden. Many of these smoking-addicted patients also present with multiple risk factors: dental, medical, and psychiatric. Innovative approaches are necessary to reduce barriers to providing smoking cessation services to underserved and high-risk smokers. A tobacco cessation clinic in a dental school setting provides an opportunity for dental students to learn about the management of difficult-to-treat cases and to bring their enhanced intervention skills back into the primary care dental setting. This paper describes a multidisciplinary approach to tobacco cessation in a dental school clinic within an academic medical center.

Academic Medical Centers↗