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At least 343 records · Page 19Linked to original sources
PubMed2001

Incidence of dementia and Alzheimer disease in 2 communities: Yoruba residing in Ibadan, Nigeria, and African Americans residing in Indianapolis, Indiana.

CONTEXT: Alzheimer disease (AD) represents a major and increasing public health problem. If populations were identified with significantly lower or higher incidence rates of AD, the search for risk factors in the genesis of AD could be greatly enhanced. OBJECTIVE: To compare incidence rates of dementia and AD in 2 diverse, elderly community-dwelling populations. DESIGN: The Indianapolis-Ibadan Dementia Project, a longitudinal, prospective population-based study consisting of a baseline survey (1992-1993) and 2 subsequent follow-up waves after 2 years (1994-1995) and 5 years (1997-1998). Each wave followed a 2-stage design, with an in-home screening interview followed by a full diagnostic workup of a subsample of participants based on screening performance. SETTING AND PARTICIPANTS: A total of 2459 community-dwelling Yoruba residents of Ibadan, Nigeria, without dementia, and 2147 community-dwelling African American residents of Indianapolis, Ind, without dementia (all aged 65 years or older). The cohorts were followed up for a mean of 5.1 years and 4.7 years, respectively. MAIN OUTCOME MEASURES: Incident cases of dementia and AD in each of the 2 populations. RESULTS: The age-standardized annual incidence rates were significantly lower among Yoruba than among African Americans for dementia (Yoruba, 1.35% [95% confidence interval [CI], 1.13%-1.56%]; African Americans, 3.24% [95% CI, 2.11%-4.38%]) and for AD (Yoruba, 1.15% [95% CI, 0.96%-1.35%]; African Americans, 2.52% [95% CI, 1.40%-3.64%]). CONCLUSION: This is the first report of incidence rate differences for dementia and AD in studies of 2 populations from nonindustrialized and industrialized countries using identical methods and the same group of investigators in both sites. Further explorations of these population differences may identify potentially modifiable environmental or genetic factors to account for site differences in dementia and AD.

Aged↗
PubMed2000

Performance characteristics of the Indiana University Medical Center endometrial sampler (Tao Brush) in an outpatient office setting, first year's outcomes: recognizing histological patterns in cytology preparations of endometrial brushings.

Following successful hysterectomy-controlled trials, Tao brush endometrial cytology with liquid fixation was offered to clinicians for office use. This report recounts our first year's cytology and correlative histology outcomes. One hundred thirteen cases were accrued. Correlative tissue examinations comprising Pipelle (Prodimed, Neuilly-en-Thelle, France) biopsy, hysteroscopy and biopsy, dilatation and curettage, and hysterectomy were available at this institution for 59 cases. In 42 cases, cytology diagnoses could be compared to histology diagnoses. Twenty-five of 63 normal brushings were followed up. Fourteen were normal. Eleven Pipelle biopsies of cytologically atrophic endometrium were quantitatively limited and insufficient for diagnosis. Thirty-seven cases were abnormal, and 15 of these showed nuclear anaplasia. Twenty-eight of the abnormal cases were followed up. All correlative tissue examinations confirmed an abnormality. All 15 cases with nuclear anaplasia showed significant histopathology comprising atypical endometrial hyperplasia, endometrial intraepithelial neoplasia (EIN), endometrial intraepithelial carcinoma (EIC), and invasive adenocarcinoma. There were 13 inadequate endometrial brushings. Three cases had insufficient cellular material. The remaining 10 cases were cellular but were chiefly cervical/endocervical samples. Two of the cellular cases resulted from clinicians failing to replace the protective sheath over the brush bristles before removing the Tao brush from the endometrial cavity. The remaining 11 cases resulted from inaccessibility of the uterine cavity due to a tight or stenotic cervix. The Tao brush is a reliable uterine sampling device that performs well as a diagnostic tool for outpatient assessment of the endometrium of women with patent cervices. An advantage of endometrial cytology is that it accurately represents atrophic endometrium, and it is an effective case-finding tool for EIN and EIC. Women with tight or stenotic cervices are poor candidates for endometrial brushing, and may experience pain if the procedure is attempted. Diagn. Cytopathol. 2000;22:186-195.

Academic Medical Centers↗
PubMed1995

Adult primary pure teratoma of the testis. The Indiana experience.

BACKGROUND: Pure testicular teratoma in adults is a relatively rare malignant tumor with the ability to invade and metastasize. Pure teratoma generally is believed to be less aggressive and less likely to progress, to present in lower stages, and to have better survival rates then other forms of germ cell tumor. Consequently, clinical stage A patients with pure testicular teratoma commonly have been considered to be managed best by surveillance. METHODS: A computerized database search identified 41 patients presenting to Indian University with pure teratoma in the orchiectomy specimen. These patients were further subdivided into four groups based on clinical stage, as follows: Group I, 18 patients with clinical Stage A disease; Group II, 4 patients with clinical Stages A-B1 disease based on questionable computed tomography findings; Group III, 3 patients with clinical Stage B1 disease; Group IV, 16 patients with advanced stage (B3-C) disease. The experience with these patients was reviewed. RESULTS: The overall risk of lymph node metastasis in retroperitoneal lymph node dissection (RPLND) and the risk of relapse after RPLND for patients with low stage pure testicular teratoma (groups I-III) were 40 and 16%, respectively. In patients with clinical Stage A teratoma, the risk of retroperitoneal metastasis in RPLND was 16.7% and the relapse rate was 11.1%. In addition, nearly 37% of referred patients with pure teratoma presented with advanced disease. CONCLUSIONS: These data provide additional confirmation of the metastatic potential of pure testicular teratoma. The proper management of the adult clinical stage A patient with primary pure teratoma of the testis should not necessarily differ from the management of any other histologic type of nonseminomatous testicular tumor. Accordingly, histologic diagnosis of pure teratoma should not mandate surveillance. Instead, patients must be given adequate information regarding management options, as are all other patients presenting with clinical Stage A nonseminoma.

Adolescent↗