Abstract:
:Because T-regulatory cells (Tregs) can harmfully impair HIV-specific responses or beneficially limit immune activation, we compared the number of Tregs in lymph nodes from 48 HIV+ patients and 106 HIV- subjects. By using a microscope counting grid, we found that the mean ± SD number of Tregs in lymph nodes was 3 times greater in HIV+ males than HIV+ females (23.5 ± 20.7 vs 7.8 ± 7.7; P = .0006) and almost twice as great in HIV+ males than HIV- males (23.5 ± 20.7 vs 13.5 ± 15.5; P = .04). There were fewer Tregs in HIV+ females than in HIV- females (mean ± SD, 7.8 ± 7.7 vs 13.4 ± 13.3; P = .04). HIV+ males compared with HIV+ females had higher viral loads (VLs) and lower peripheral blood (PB) CD4 cell counts (mean ± SD, 239,841 ± 307,494 vs 73,038 ± 146,763 copies/mL and 262 ± 207 vs 466 ± 278/mm(3); P = .02 and P = .01, respectively). Our data show that Tregs in lymph nodes from HIV+ patients are positively correlated with VL and negatively correlated with PB CD4 counts. These findings suggest that Tregs might impair an HIV-specific immune response, which could be modified by sex, or, alternatively, an increased VL causes increased Tregs.
journal_name
Am J Clin Patholjournal_title
American journal of clinical pathologyauthors
Arce J,Levin M,Xie Q,Albanese J,Ratech Hdoi
10.1309/AJCPAR39BFWNHWROsubject
Has Abstractpub_date
2011-07-01 00:00:00pages
35-42issue
1eissn
0002-9173issn
1943-7722pii
136/1/35journal_volume
136pub_type
杂志文章abstract::A number of reports have highlighted discrepancies between the DuPont aca and fibrometer-based methods for quantitating plasma fibrinogen levels. Although many authors have suggested that the presence of fibrin(ogen) degradation products are in some way responsible for the discrepancies, no direct test of this hypothe...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/88.4.490
更新日期:1987-10-01 00:00:00
abstract::Three anti-Factor-VIII antibodies from hemophiliacs were reacted with samples of batches of Maws commerical bovine and porcine Factor VIII concentrates manufactured over a 12-year period. The apparent antibody concentrations varied widely with the different batches of concentrates. The variations are probably due to i...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/65.6.957
更新日期:1976-06-01 00:00:00
abstract::Trends in surgical practice suggest that pathologists will encounter increased numbers of patients with small invasive ductal adenocarcinomas; small, if any, metastatic deposits in axillary lymph nodes (ALNs); and possibly fewer ALN specimens to examine. New prognostic histologic features may be needed in this environ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/111.1.21
更新日期:1999-01-01 00:00:00
abstract:OBJECTIVES:Peritoneal mesothelial cysts have been reported under various terms, including benign cystic mesothelioma, usually in the form of case reports/series, whereas extraperitoneal cases are rarely reported. Our objective was to report the detailed characteristics of cystic lesions of the serosal cavities. METHOD...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqaa189
更新日期:2020-12-01 00:00:00
abstract::Screening for serum lipid disorders is recommended by numerous specialty societies to identify patients at risk for coronary heart disease (CHD). The best screening tests will identify patients at highest risk for CHD who would benefit from intervention. This report discusses an appropriate test panel to use as the in...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/103.4.380
更新日期:1995-04-01 00:00:00
abstract::The authors have assessed the clinical value of an "accurate" band count as a correlate to infection in 33 patients with a culture proven bacterial infection and a normal total leukocyte count. Thirty hematologically normal outpatients, presumably with no infections, were selected for the control group. Manual 500 cel...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/102.5.646
更新日期:1994-11-01 00:00:00
abstract::The effect of changes in cytology laboratory costs, including the costs of new technologies, on the cost-effectiveness of cervical cancer prevention has not been studied. Using University of Iowa laboratory detection rates and costs, a decision model determined the cost-effectiveness of the laboratory with and without...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/111.2.259
更新日期:1999-02-01 00:00:00
abstract::Tissue specimens from a series of 46 hepatic tumors occurring in young female oral contraceptive users were tested for alpha1-antitrypsin deposition, utilizing immunocytochemical and histochemical methods. In two instances serum alpha1-antitrypsin phenotyping was also performed. Immunoreactive alpha1-antitrypsin depos...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/68.6.736
更新日期:1977-12-01 00:00:00
abstract::Plasma samples from patients with severe classic hemophilia, suspected of having mild inhibitors not detected in the standard Bethesda inhibitor test, were examined in modified Bethesda tests and in a screening test based on the activated partial thromboplastin time (APTT). The APTT test was more sensitive to mild inh...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/77.6.749
更新日期:1982-06-01 00:00:00
abstract:OBJECTIVES:B-lymphoblastic leukemia (B-LBL) arising in patients with chronic lymphocytic leukemia (CLL) is exceedingly rare and poorly characterized. METHODS:We describe four patients with CLL and concurrent or subsequent B-LBL diagnosed by morphologic, immunophenotypic, cytogenetic, and molecular analysis and reviewe...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPXE5VMONMVLZ0
更新日期:2015-08-01 00:00:00
abstract:Objectives:The plasma-thrombin method is commonly used to make cell blocks from fine-needle aspiration (FNA) samples but requires centrifugation. We describe a modification to this method that does not require centrifugation for use in resource-limited settings. Methods:Pooled fresh plasma is aliquoted into 2-mL Eppen...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqy031
更新日期:2018-07-03 00:00:00
abstract::This paper's purpose is to document a case of unilateral tonsillar malakoplakia. Escherichia coli was repeatedly cultured from the lesion, and the isolate was studied by expert microbiologists who found no abnormalities in its biologic properties. The course of the lesion was followed by repeated punch biopsies before...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/78.3.390
更新日期:1982-09-01 00:00:00
abstract:OBJECTIVES:To demonstrate the impact of genetics specialists on identifying test order errors and improving reimbursement for genetic testing. METHODS:Forty-four cases in which whole exome sequencing (WES) was performed but not reimbursed were reviewed by a genetic counselor through simulated prospective and retrospec...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqz188
更新日期:2020-03-09 00:00:00
abstract:OBJECTIVES:α1-Antitrypsin (AAT) deficiency is associated with an increased risk for lung and liver disease. Identification of AAT deficiency as the underlying cause of these diseases is important in correct patient management. METHODS:AAT deficiency is commonly diagnosed by demonstrating low concentrations of AAT foll...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPR7EIQS8PIMLV
更新日期:2014-05-01 00:00:00
abstract::Although reports have suggested the incomplete type of intestinal metaplasia (IM) had a close correlation with carcinoma, considerable data showed no apparent relationship between the particular type of IM and the intestinal type carcinoma. The purpose of this study was to establish a novel classification of IM using ...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/109.2.181
更新日期:1998-02-01 00:00:00
abstract::Two cases of giant-cell arteritis of uterus were found incidentally in association with uterine prolapse. One similar case has been reported in the literature. Microscopic examination disclosed fragmentation of the elastic laminae of the myometrial arteries with a giant-cell and mononuclear infiltrate. The relationshi...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/65.3.308
更新日期:1976-03-01 00:00:00
abstract::This study was undertaken to compare several methods of evaluating the common assumption that laboratory data may be treated as if they had been drawn from an underlying Gaussian distribution. As had been described earlier, the usual Kolmogorov-Smirnov test was found to be unsatisfactory due to its sensitivity to roun...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/83.5.642
更新日期:1985-05-01 00:00:00
abstract::A flow cytometric technic was developed to detect platelet surface-bound immunoglobulin in patients with thrombocytopenia. Elevated platelet surface IgG and/or IgM was detected in 90.9% of patients with immune thrombocytopenia purpura (ITP). False positive results occurred in 9.3% of patients with nonimmune thrombocyt...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/87.4.518
更新日期:1987-04-01 00:00:00
abstract::One hundred eighty-three patients with endometrial carcinoma had both immunohistochemical and biochemical analysis of estrogen receptor (ER) and progesterone receptor (PR) content of the tumor. Biochemical analysis was done on a homogenate of uterine curettings; immunohistochemical stainings were done on formalin-fixe...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/94.3.255
更新日期:1990-09-01 00:00:00
abstract:OBJECTIVES:Many nonpathologists and some pathologists consider utilization review essential to laboratory quality improvement, but (1) confusion surrounding the definition of "appropriate" laboratory utilization, (2) the reliance on manual chart review, and (3) a lack of leadership have contributed to its unstandardize...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1309/AJCPX1HIEM4KLGNU
更新日期:2014-06-01 00:00:00
abstract::Proper collection, handling, and storage of the blood alcohol specimen are essential in medicolegal cases involving the question of sobriety. A standard operating procedure is necessary to ensure maximum reliability. Comments are offered on the advantages of using blood specimens in preference to urine or tissue speci...
journal_title:American journal of clinical pathology
pub_type: 杂志文章,评审
doi:10.1093/ajcp/74.5.743
更新日期:1980-11-01 00:00:00
abstract::Endometrial vascular changes similar to atherosclerosis of toxemia of pregnancy were described and graded in 217 consecutive endometrial biopsies of known early intrauterine pregnancy. Severe vascular changes were found in 23.5% of cases. Control material consisting of endometrial biopsies of patients with known cases...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/90.3.284
更新日期:1988-09-01 00:00:00
abstract:OBJECTIVES:Meningiomas usually can be readily diagnosed on H&E alone, although occasionally immunohistochemistry (IHC) confirmation is desirable. Studies exploring the diagnostic utility of either podoplanin (D2-40) or E-cadherin IHC in meningiomas have conflicted, and no studies exist in which the two IHCs have been u...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPSULJ6DW5REHR
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVES:Method imprecision, error rates, and explanatory causes that were identified in the Institute for Quality Management in Healthcare point-of-care (POC) glucose proficiency testing (PT) program were assessed in comparison with results obtained from laboratory glucose PT surveys. METHODS:POC and laboratory glu...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1309/AJCPP5YS2MVSKBYY
更新日期:2014-12-01 00:00:00
abstract::Autopsy reports of 231 adult autopsies were examined for clinically unexpected diagnoses. Analysis of data showed that 97 of 188 autopsy diagnoses were clinically unexpected. The diagnosis of pulmonary embolism was clinically the most frequently missed diagnosis relative to its actual occurrence. Also noted was that t...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/93.4.486
更新日期:1990-04-01 00:00:00
abstract::Patient red blood cell (RBC) index means, when used in quality control, form an independent standard that is as accurate and precise as preserved blood controls. If such patient data are routinely incorporated in intralaboratory and interlaboratory quality control programs, a substantial improvement in the present sta...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/86.2.193
更新日期:1986-08-01 00:00:00
abstract::A practical acidimetric assay for penicillinase production using penicillin and phenol red impregnated in paper discs was developed. Blank discs were first impregnated with buffered penicillin G and, after drying, with 1% phenol red. For use, a disc was added to a bacterial suspension made in saline solution. A yellow...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/75.4.557
更新日期:1981-04-01 00:00:00
abstract::Two separate courses in clinical pathology were presented to two groups of second-year medical students. The first (large) group was taught by the conventional lecture method; the other (small) group, by a self-instructional method for roughly half of the course, followed by the conventional lecture method for the sec...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/70.6.847
更新日期:1978-12-01 00:00:00
abstract::HMB45 is a melanoma-specific monoclonal antibody that has found widespread use in diagnostic pathology. Recent reports, however, have suggested that this antibody may cross-react with a small number of carcinomas and other epithelial cells. The authors tested the hypothesis that these latter reports represent examples...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/95.4.454
更新日期:1991-04-01 00:00:00
abstract:OBJECTIVES:Universal screening of upper tract urothelial carcinoma (UTUC) for Lynch syndrome by mismatch repair (MMR) protein immunohistochemistry (IHC) has been recommended by some investigators. Herein, we assess this recommendation retrospectively by simulating its performance on a retrospective, unselected cohort o...
journal_title:American journal of clinical pathology
pub_type: 杂志文章
doi:10.1093/ajcp/aqaa100
更新日期:2020-11-04 00:00:00