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Olivos N, Banta JE, Spencer-Hwang R, Ansong D, Beane Freeman LE, Clegg-Lamptey JN, Wiafe-Addai B, Edusei L, Adjei E, Titiloye N, Dedey F, Aitpillah F, Oppong J, Vanderpuye V, Osei-Bonsu E, Ahearn TU, Biritwum R, Yarney J, Awuah B, Nyarko K, Garcia-Closas M, Abubakar M, Brinton LA, Figueroa JD, Wiafe S. Mosquito control exposures and breast cancer risk: analysis of 1071 cases and 2096 controls from the Ghana Breast Health Study. Breast Cancer Res 2023; 25:150. [PMID: 38082317 PMCID: PMC10714652 DOI: 10.1186/s13058-023-01737-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 10/30/2023] [Indexed: 12/18/2023] Open
Abstract
Epidemiologic data on insecticide exposures and breast cancer risk are inconclusive and mostly from high-income countries. Using data from 1071 invasive pathologically confirmed breast cancer cases and 2096 controls from the Ghana Breast Health Study conducted from 2013 to 2015, we investigated associations with mosquito control products to reduce the spread of mosquito-borne diseases, such as malaria. These mosquito control products were insecticide-treated nets, mosquito coils, repellent room sprays, and skin creams for personal protection against mosquitos. Multivariable and polytomous logistic regression models were used to estimate odds ratios (ORadj) and 95% confidence intervals (CI) with breast cancer risk-adjusted for potential confounders and known risk factors. Among controls, the reported use of mosquito control products were mosquito coils (65%), followed by insecticide-treated nets (56%), repellent room sprays (53%), and repellent skin creams (15%). Compared to a referent group of participants unexposed to mosquito control products, there was no significant association between breast cancer risk and mosquito coils. There was an association in breast cancer risk with reported use of insecticide-treated nets; however, that association was weak and not statistically significant. Participants who reported using repellent sprays were at elevated risks compared to women who did not use any mosquito control products, even after adjustment for all other mosquito control products (OR = 1.42, 95% CI=1.15-1.75). We had limited power to detect an association with repellent skin creams. Although only a few participants reported using repellent room sprays weekly/daily or < month-monthly, no trends were evident with increased frequency of use of repellent sprays, and there was no statistical evidence of heterogeneity by estrogen receptor (ER) status (p-het > 0.25). Our analysis was limited when determining if an association existed with repellent skin creams; therefore, we cannot conclude an association. We found limited evidence of risk associations with widely used mosquito coils and insecticide-treated nets, which are reassuring given their importance for malaria prevention. Our findings regarding specific breast cancer risk associations, specifically those observed between repellent sprays, require further study.
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Affiliation(s)
- Naomie Olivos
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | - Jim E Banta
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | | | | | - Laura E Beane Freeman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | | | | | | | | | | | | | | | | | | | | | - Thomas U Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | | | | | | | | | | | - Mustapha Abubakar
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Louise A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Jonine D Figueroa
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA.
| | - Seth Wiafe
- School of Public Health, Loma Linda University, Loma Linda, CA, USA.
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Santa S, Brown CA, Akakpo PK, Edusei L, Quaye O, Tagoe EA. HPV18 L1 and long control region sequences variation and E6/E7 differential expression in nasopharyngeal and cervical cancers: a comparative study. Infect Agent Cancer 2023; 18:78. [PMID: 38037052 PMCID: PMC10691078 DOI: 10.1186/s13027-023-00560-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 11/22/2023] [Indexed: 12/02/2023] Open
Abstract
BACKGROUND The role of high-risk human papillomaviruses (hr-HPVs) in cervical cancer (CC) pathogenesis has long been established. Knowledge about the involvement of hr-HPVs in the etiology of nasopharyngeal cancers (NPC) was not well appreciated until the early 2000s when a clear link began to emerge. However, it is not clear whether HPV oncogenesis in the different epithelial cancers is associated with L1 gene and long-control region (LCR) sequences variation. This study aimed to investigate the HPV18 L1 gene and LCR sequences variation in cervical and nasopharyngeal biopsies, and assessed E6 and E7 genes expression level in both cancers. METHOD Four-hundred and three (403) formalin-fixed paraffin-embedded tissues originating from nasopharyngeal (NPC) (279) and cervical (CC) (124) sites were collected from a pathology laboratory, Pathologist Without Borders, Accra, Ghana. Haematoxylin and eosin staining was carried out to confirm the presence of cancer on prepared biopsy sections. DNA was extracted from the confirmed cancer biopsies, followed by PCR using MY09/GP5+ /6+ primers to detect the presence of HPV and specific primers for the amplification of L1 gene and LCR. Sanger sequencing was carried out to determine HPV genotypes, and L1 and LCR sequences variant of HPV18s in CC and NPC biopsies. The HPV18 E6/E7 mRNA expression pattern in both cancers was determined using RT-qPCR. RESULTS Most of the NPC (45%) and CC (55%) biopsies were HPV18 positive. Comparison of HPV18 L1 sequences obtained from cervical and nasopharyngeal cancer tissues, the L1 sequences from the NPC were highly dissimilar with a 59-100% variation among themselves, and in relation to the reference strains. However, the L1 sequences from the CC were more similar with a 91.0-100% variation among the amplified sequences. Also, the LCR sequences from CC were quite different relative to that of NPC. Results for the differential expression of E6/E7 in the two cancers showed a higher fold change in E6 expression in the CC tissues than the NPC tissues while a reverse expression pattern was found for E7 gene. CONCLUSION The current study reports for the first-time variations in HPV18 L1 and LCR sequences, and differential expression of E6/E7 genes in NPC compared to CC, suggesting a possible adaptation mechanism of the virus at different cancer sites.
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Affiliation(s)
- Sheila Santa
- Department of Biochemistry, Cell and Molecular Biology, West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), University of Ghana, Accra, Ghana
- Department of Medical Laboratory Sciences, University of Ghana, Accra, Ghana
| | - Charles A Brown
- Department of Medical Laboratory Sciences, University of Ghana, Accra, Ghana
| | - Patrick K Akakpo
- Pathology Department, School of Medical Sciences, University of Cape Coast, Cape Coast, Ghana
- Pathology Without Borders, Laterbiokorshie, Accra, Ghana
| | - Lawrence Edusei
- Pathology Department, Medical School, University of Ghana, Accra, Ghana
- Pathology Without Borders, Laterbiokorshie, Accra, Ghana
| | - Osbourne Quaye
- Department of Biochemistry, Cell and Molecular Biology, West African Centre for Cell Biology of Infectious Pathogens (WACCBIP), University of Ghana, Accra, Ghana
| | - Emmanuel A Tagoe
- Department of Medical Laboratory Sciences, University of Ghana, Accra, Ghana.
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Wu Z, Pfeiffer RM, Byrd DA, Wan Y, Ansong D, Clegg-Lamptey JN, Wiafe-Addai B, Edusei L, Adjei E, Titiloye N, Dedey F, Aitpillah F, Oppong J, Vanderpuye V, Osei-Bonsu E, Dagnall CL, Jones K, Hutchinson A, Hicks BD, Ahearn TU, Knight R, Biritwum R, Yarney J, Wiafe S, Awuah B, Nyarko K, Garcia-Closas M, Sinha R, Figueroa JD, Brinton LA, Trabert B, Vogtmann E. Associations of Circulating Estrogens and Estrogen Metabolites with Fecal and Oral Microbiome in Postmenopausal Women in the Ghana Breast Health Study. Microbiol Spectr 2023; 11:e0157223. [PMID: 37341612 PMCID: PMC10433996 DOI: 10.1128/spectrum.01572-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 05/26/2023] [Indexed: 06/22/2023] Open
Abstract
The human fecal and oral microbiome may play a role in the etiology of breast cancer through modulation of endogenous estrogen metabolism. This study aimed to investigate associations of circulating estrogens and estrogen metabolites with the fecal and oral microbiome in postmenopausal African women. A total of 117 women with fecal (N = 110) and oral (N = 114) microbiome data measured by 16S rRNA gene sequencing, and estrogens and estrogen metabolites data measured by liquid chromatography tandem mass spectrometry were included. The outcomes were measures of the microbiome and the independent variables were the estrogens and estrogen metabolites. Estrogens and estrogen metabolites were associated with the fecal microbial Shannon index (global P < 0.01). In particular, higher levels of estrone (β = 0.36, P = 0.03), 2-hydroxyestradiol (β = 0.30, P = 0.02), 4-methoxyestrone (β = 0.51, P = 0.01), and estriol (β = 0.36, P = 0.04) were associated with higher levels of the Shannon index, while 16alpha-hydroxyestrone (β = -0.57, P < 0.01) was inversely associated with the Shannon index as indicated by linear regression. Conjugated 2-methoxyestrone was associated with oral microbial unweighted UniFrac as indicated by MiRKAT (P < 0.01) and PERMANOVA, where conjugated 2-methoxyestrone explained 2.67% of the oral microbial variability, but no other estrogens or estrogen metabolites were associated with any other beta diversity measures. The presence and abundance of multiple fecal and oral genera, such as fecal genera from families Lachnospiraceae and Ruminococcaceae, were associated with several estrogens and estrogen metabolites as indicated by zero-inflated negative binomial regression. Overall, we found several associations of specific estrogens and estrogen metabolites and the fecal and oral microbiome. IMPORTANCE Several epidemiologic studies have found associations of urinary estrogens and estrogen metabolites with the fecal microbiome. However, urinary estrogen concentrations are not strongly correlated with serum estrogens, a known risk factor for breast cancer. To better understand whether the human fecal and oral microbiome were associated with breast cancer risk via the regulation of estrogen metabolism, we conducted this study to investigate the associations of circulating estrogens and estrogen metabolites with the fecal and oral microbiome in postmenopausal African women. We found several associations of parent estrogens and several estrogen metabolites with the microbial communities, and multiple individual associations of estrogens and estrogen metabolites with the presence and abundance of multiple fecal and oral genera, such as fecal genera from families Lachnospiraceae and Ruminococcaceae, which have estrogen metabolizing properties. Future large, longitudinal studies to investigate the dynamic changes of the fecal and oral microbiome and estrogen relationship are needed.
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Affiliation(s)
- Zeni Wu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Ruth M. Pfeiffer
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Doratha A. Byrd
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Yunhu Wan
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | | | | | | | | | | | | | | | | | | | | | | | - Casey L. Dagnall
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Cancer Genomics Research Laboratory, Frederick National Lab for Cancer Research, Frederick, Maryland, USA
| | - Kristine Jones
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Cancer Genomics Research Laboratory, Frederick National Lab for Cancer Research, Frederick, Maryland, USA
| | - Amy Hutchinson
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Cancer Genomics Research Laboratory, Frederick National Lab for Cancer Research, Frederick, Maryland, USA
| | - Belynda D. Hicks
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Cancer Genomics Research Laboratory, Frederick National Lab for Cancer Research, Frederick, Maryland, USA
| | - Thomas U. Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, La Jolla, California, USA
| | | | | | - Seth Wiafe
- School of Public Health, Loma Linda University, Loma Linda, California, USA
| | | | | | - Montserrat Garcia-Closas
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Rashmi Sinha
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Jonine D. Figueroa
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
- Usher Institute and CRUK Edinburgh Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Louise A. Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
| | - Britton Trabert
- Department of Obstetrics and Gynecology, University of Utah, and Huntsman Cancer Institute at the University of Utah, Salt Lake City, Utah, USA
| | - Emily Vogtmann
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland, USA
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Abubakar M, Ahearn TU, Duggan MA, Lawrence S, Adjei E, Clegg-Lamptey JN, Yarney J, Wiafe-Addai B, Awuah B, Wiafe S, Nyarko K, Aitpillah F, Ansong D, Hewitt SM, Brinton LA, Figueroa JD, Garcia-Closas M, Edusei L, Titiloye N. Associations of breast cancer etiologic factors with stromal microenvironment of primary invasive breast cancers in the Ghana Breast Health Study. Res Sq 2023:rs.3.rs-2791342. [PMID: 37090574 PMCID: PMC10120782 DOI: 10.21203/rs.3.rs-2791342/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
Background Emerging data suggest that beyond the neoplastic parenchyma, the stromal microenvironment (SME) impacts tumor biology, including aggressiveness, metastatic potential, and response to treatment. However, the epidemiological determinants of SME biology remain poorly understood, more so among women of African ancestry who are disproportionately affected by aggressive breast cancer phenotypes. Methods Within the Ghana Breast Health Study, a population-based case-control study in Ghana, we applied high-accuracy machine-learning algorithms to characterize biologically-relevant SME phenotypes, including tumor-stroma ratio (TSR (%); a metric of connective tissue stroma to tumor ratio) and tumor-associated stromal cellular density (Ta-SCD (%); a tissue biomarker that is reminiscent of chronic inflammation and wound repair response in breast cancer), on digitized H&E-stained sections from 792 breast cancer patients aged 17-84 years. Kruskal-Wallis tests and multivariable linear regression models were used to test associations between established breast cancer risk factors, tumor characteristics, and SME phenotypes. Results Decreasing TSR and increasing Ta-SCD were strongly associated with aggressive, mostly high grade tumors (p-value < 0.001). Several etiologic factors were associated with Ta-SCD, but not TSR. Compared with nulliparous women [mean (standard deviation) = 28.9% (7.1%)], parous women [mean (standard deviation) = 31.3% (7.6%)] had statistically significantly higher levels of Ta-SCD (p-value = 0.01). Similarly, women with a positive family history of breast cancer [FHBC; mean (standard deviation) = 33.0% (7.5%)] had higher levels of Ta-SCD than those with no FHBC [mean (standard deviation) = 30.9% (7.6%); p-value = 0.01]. Conversely, increasing body size was associated with decreasing Ta-SCD [mean (standard deviation) = 32.0% (7.4%), 31.3% (7.3%), and 29.0% (8.0%) for slight, moderate, and large body sizes, respectively, p-value = 0.005]. These associations persisted and remained statistically significantly associated with Ta-SCD in mutually-adjusted multivariable linear regression models (p-value < 0.05). With the exception of body size, which was differentially associated with Ta-SCD by grade levels (p-heterogeneity = 0.04), associations between risk factors and Ta-SCD were not modified by tumor characteristics. Conclusions Our findings raise the possibility that epidemiological factors may act via the SME to impact both risk and biology of breast cancers in this population, underscoring the need for more population-based research into the role of SME in multi-state breast carcinogenesis.
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Geczik AM, Falk RT, Xu X, Wiafe-Addai B, Yarney J, Awuah B, Biritwum R, Vanderpuye V, Dedey F, Adjei E, Aitpillah F, Osei-Bonsu E, Oppong J, Titiloye N, Edusei L, Nyarko K, Clegg-Lamptey JN, Wiafe S, Ansong D, Ahearn TU, Figueroa J, Garcia-Closas M, Brinton LA, Trabert B. Relation of circulating estrogens with hair relaxer and skin lightener use among postmenopausal women in Ghana. J Expo Sci Environ Epidemiol 2023; 33:301-310. [PMID: 34992224 PMCID: PMC9256865 DOI: 10.1038/s41370-021-00407-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 12/09/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND Hair relaxers and skin lighteners have been commonly used by African women, with suggestions that they may have hormonal activity. OBJECTIVES To investigate the relationship of hair relaxer and skin lightener use to serum estrogen/estrogen metabolite levels. METHODS We utilized the postmenopausal population-based controls of the Ghana Breast Health Study to estimate adjusted geometric means (GM) and 95% confidence intervals of individual circulating estrogen levels by hair relaxer/skin lightener exposure categories. RESULTS Of the 585 postmenopausal women included in our analysis, 80.2% reported hair relaxer use and 29.4% skin lightener use. Ever hair relaxer use was positively associated with estriol (adjusted GM 95.4 pmol/L vs. never 74.5, p value = 0.02) and 16-epiestriol (20.4 vs. 16.8, p value = 0.05) particularly among users of lye-based hair relaxers. Positive associations between scalp burns and unconjugated estrogens were observed (e.g., unconjugated estrone: 5+ scalp burns 76.9 [59.6-99.2] vs. no burns 64.0 [53.7-76.3], p-trend = 0.03). No association was observed between use of skin lighteners and circulating estrogens. SIGNIFICANCE This study presents evidence that circulating 16-pathway estrogens (i.e., estriol and 16-epiestriol) may be increased in users of lye-based hair relaxer products. Among hair relaxer users, unconjugated estrogen levels were elevated in women with a greater number of scalp burns. IMPACT STATEMENT In this population-based study of hair relaxer and skin lightener use among postmenopausal women in Ghana, altered estrogen metabolism was observed with hair relaxer use, particularly among women using lye-based products or with a greater number of scalp burns. In contrast, skin lightener use was not associated with differences in estrogen metabolism in this population. Continued investigation of the potential biological impact on breast cancer risk of hair relaxer use is warranted.
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Affiliation(s)
- Ashley M Geczik
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Roni T Falk
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xia Xu
- Protein Characterization Laboratory, Leidos-Frederick, Inc, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Seth Wiafe
- Loma Linda University, School of Public Health, Loma Linda, CA, USA
| | - Daniel Ansong
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Thomas U Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jonine Figueroa
- The University of Edinburgh, Cancer Research UK Edinburgh Center, Edinburgh, UK
| | - Montserrat Garcia-Closas
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Louise A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Britton Trabert
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Geczik AM, Falk RT, Xu X, Wiafe-Addai B, Yarney J, Awuah B, Biritwum R, Vanderpuye V, Dedey F, Adjei E, Aitpillah F, Osei-Bonsu E, Oppong J, Titiloye N, Edusei L, Nyarko K, Clegg-Lamptey JN, Wiafe S, Ansong D, Ahearn TU, Figueroa J, Garcia-Closas M, Brinton LA, Trabert B. Correction to: Relation of circulating estrogens with hair relaxer and skin lightener use among postmenopausal women in Ghana. J Expo Sci Environ Epidemiol 2023; 33:311. [PMID: 35094015 DOI: 10.1038/s41370-022-00415-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- Ashley M Geczik
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Roni T Falk
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xia Xu
- Protein Characterization Laboratory, Leidos-Frederick, Inc, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Seth Wiafe
- Loma Linda University, School of Public Health, Loma Linda, CA, USA
| | - Daniel Ansong
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Thomas U Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jonine Figueroa
- The University of Edinburgh, Cancer Research UK Edinburgh Center, Edinburgh, UK
| | - Montserrat Garcia-Closas
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Louise A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Britton Trabert
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA.
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Akakpo PK, Imbeah EG, Edusei L, Naporo S, Ulzen-Appiah K, Clegg-Lamptey JN, Dedey F, Nsaful J, Affram N, Wiafe B, Mensah S, Nortey M, Sheriff M, Amponsah-Manu F, Agbedinu K, Jiagge EM. Clinicopathologic characteristics of early-onset breast cancer: a comparative analysis of cases from across Ghana. BMC Womens Health 2023; 23:5. [PMID: 36597014 PMCID: PMC9808934 DOI: 10.1186/s12905-022-02142-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 12/20/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Breast cancer is the commonest cancer diagnosed globally and the second leading cause of cancer-related mortality among women younger than 40 years. This study comparatively reviewed the demographic, pathologic and molecular features of Early-Onset Breast Cancer (EOBC) reported in Ghana in relation to Late Onset Breast Cancer (LOBC). METHODS A descriptive, cross-sectional design was used, with purposive sampling of retrospective histopathology data from 2019 to 2021. Reports of core or incision biopsy, Wide Local Excision or Mastectomy with or without axillary lymph node dissection specimen and matched immunohistochemistry reports were merged into a single file and analysed with SPSS v. 20.0. Descriptive statistics of frequencies and percentages were used to describe categorical variables. Cross-tabulation and chi-square test was done at a 95% confidence interval with significance established at p < 0.05. RESULTS A total of 2418 cases were included in the study with 20.2% (488 cases) being EOBCs and 79.8% (1930 cases) being LOBCs. The median age at diagnosis was 34.66 (IQR: 5.55) in the EOBC group (< 40 years) and 54.29 (IQR: 16.86) in the LOBC group (≥ 40 years). Invasive carcinoma-No Special Type was the commonest tumour type with grade III tumours being the commonest in both categories of patients. Perineural invasion was the only statistically significant pathologic parameter with age. EOBC was associated with higher DCIS component (24.8% vs 21.6%), lower hormone-receptor-positive status (52.30% vs 55.70%), higher proliferation index (Ki-67 > 20: 82.40% vs 80.30%) and a higher number of involved lymph nodes (13.80% vs 9.00%). Triple-Negative Breast cancer (26.40% vs 24.30%) was the most predominant molecular subtype of EOBC. CONCLUSION EOBCs in our setting are generally more aggressive with poorer prognostic histopathological and molecular features when compared with LOBCs. A larger study is recommended to identify the association between relevant pathological features and early onset breast cancer in Ghana. Again, further molecular and genetic studies to understand the molecular genetic drivers of the general poorer pathological features of EOBCs and its relation to patient outcome in our setting is needed.
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Affiliation(s)
- Patrick Kafui Akakpo
- grid.413081.f0000 0001 2322 8567Department of Pathology, University of Cape Coast/Cape Coast Teaching Hospital, Cape Coast, Ghana ,ACT Pathology Consult, Pedu Estate, Cape Coast, Ghana ,Pathologists Without Borders Ltd, A585/4 Eduardo Mohdlana St. Laterbiokoshie, Accra, Ghana
| | - Emmanuel Gustav Imbeah
- ACT Pathology Consult, Pedu Estate, Cape Coast, Ghana ,Pathologists Without Borders Ltd, A585/4 Eduardo Mohdlana St. Laterbiokoshie, Accra, Ghana
| | - Lawrence Edusei
- Pathologists Without Borders Ltd, A585/4 Eduardo Mohdlana St. Laterbiokoshie, Accra, Ghana
| | - Simon Naporo
- Pathologists Without Borders Ltd, A585/4 Eduardo Mohdlana St. Laterbiokoshie, Accra, Ghana
| | - Kofi Ulzen-Appiah
- grid.413081.f0000 0001 2322 8567Department of Pathology, University of Cape Coast/Cape Coast Teaching Hospital, Cape Coast, Ghana ,ACT Pathology Consult, Pedu Estate, Cape Coast, Ghana
| | - Joe Nat Clegg-Lamptey
- grid.8652.90000 0004 1937 1485Department of Surgery, University of Ghana Medical School/Korle Bu Teaching Hospital Accra, Accra, Ghana
| | - Florence Dedey
- grid.8652.90000 0004 1937 1485Department of Surgery, University of Ghana Medical School/Korle Bu Teaching Hospital Accra, Accra, Ghana
| | - Josephine Nsaful
- grid.8652.90000 0004 1937 1485Department of Surgery, University of Ghana Medical School/Korle Bu Teaching Hospital Accra, Accra, Ghana
| | - Nelson Affram
- Department of Surgery, Ho Teaching Hospital, Ho, Ghana
| | | | - Samuel Mensah
- grid.9829.a0000000109466120Department of Surgery, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Michael Nortey
- grid.413081.f0000 0001 2322 8567Department of Surgery, University of Cape Coast / Cape Coast Teaching Hospital, Cape Coast, Ghana
| | - Mohammed Sheriff
- grid.460777.50000 0004 0374 4427Department of Surgery, Tamale Teaching Hospital, Tamale, Ghana
| | | | - Kwabena Agbedinu
- grid.415450.10000 0004 0466 0719Department of Surgery, Komfo-Anokye Teaching Hospital, Kumasi, Ghana
| | - Evelyn Mawunyo Jiagge
- grid.446722.10000 0004 0635 5208Henry Ford Cancer Institute/Henry Ford Health System, 2799W Grand Blvd, Detroit, MI USA
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Asumanu E, Attoh S, Servor RX, Laryea C, McAddy M, Hobenu F, Factchu R, Agyemang-Bediako K, Nyarko EO, Nyarko GK, Moroti MK, Edusei L. Causes of death and post-mortem testing for SARS-CoV-2 in a tertiary hospital during the COVID-19 pandemic in Ghana. Afr J Lab Med 2022; 11:1766. [DOI: 10.4102/ajlm.v11i1.1766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 08/23/2022] [Indexed: 11/25/2022] Open
Abstract
Background: Causes of death during the coronavirus disease 2019 (COVID-19) pandemic ranhttp://crossmark.crossref.org/dialog/?doi=10.4102/ajlm.v11i1.1766=pdfdate_stamp=2022-11-23ge from direct consequences of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection to deaths unrelated to SARS-CoV-2. Another feature of the pandemic is the post-mortem testing for SARS-CoV-2. Understanding these aspects of COVID-19 are essential in planning and limiting the impact of SARS-CoV-2 virus on healthcare systems.Objective: This study investigated the underlying causes of death and the presence of SARS-CoV-2 in bodies received at the 37 Military Hospital, Accra, Ghana, during the COVID-19 pandemic.Methods: The study was conducted from 4–27 May 2020. Deceased patients that met the inclusion criteria were prospectively selected during the expanded surveillance period for SARS-CoV-2 testing, autopsy and determination of underlying and immediate cause of death.Results: A total of 161 deceased patients were analysed with 53 autopsies. The overall positive test rate for SARS-CoV-2 was 14.9% (24/161 patients), with a positive rate of 5.0% (8/161 patients) for nasopharyngeal samples and 30.2% (16/161 patients) for bronchopulmonary samples. The underlying causes of death were not related to SARS-CoV-2 infection in 85.1% (137/161) of patients, SARS-CoV-2-associated 12.4% (20/161) and SARS-CoV-2-induced in 2.5% (4/161). Cardiovascular complications formed the most common cause of death in patients with or without SARS-CoV-2.Conclusion: There was a high positive rate of SARS-CoV-2 in post-mortem cases. However, most deaths were not caused by SARS-CoV-2 but by cardiovascular complications. The high rate of bronchopulmonary positive results for SARS-CoV-2 requires that autopsies be done in suspicious cases with negative nasopharyngeal sampling.
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9
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Wu Z, Byrd DA, Wan Y, Ansong D, Clegg-Lamptey JN, Wiafe-Addai B, Edusei L, Adjei E, Titiloye N, Dedey F, Aitpillah F, Oppong J, Vanderpuye V, Osei-Bonsu E, Dagnall CL, Jones K, Hutchinson A, Hicks BD, Ahearn TU, Shi J, Knight R, Biritwum R, Yarney J, Seth Wiafe, Awuah B, Nyarko K, Figueroa JD, Sinha R, Garcia-Closas M, Brinton LA, Vogtmann E. The oral microbiome and breast cancer and nonmalignant breast disease, and its relationship with the fecal microbiome in the Ghana Breast Health Study. Int J Cancer 2022; 151:1248-1260. [PMID: 35657343 PMCID: PMC9420782 DOI: 10.1002/ijc.34145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 12/24/2022]
Abstract
The oral microbiome, like the fecal microbiome, may be related to breast cancer risk. Therefore, we investigated whether the oral microbiome was associated with breast cancer and nonmalignant breast disease, and its relationship with the fecal microbiome in a case-control study in Ghana. A total of 881 women were included (369 breast cancers, 93 nonmalignant cases and 419 population-based controls). The V4 region of the 16S rRNA gene was sequenced from oral and fecal samples. Alpha-diversity (observed amplicon sequence variants [ASVs], Shannon index and Faith's Phylogenetic Diversity) and beta-diversity (Bray-Curtis, Jaccard and weighted and unweighted UniFrac) metrics were computed. MiRKAT and logistic regression models were used to investigate the case-control associations. Oral sample alpha-diversity was inversely associated with breast cancer and nonmalignant breast disease with odds ratios (95% CIs) per every 10 observed ASVs of 0.86 (0.83-0.89) and 0.79 (0.73-0.85), respectively, compared to controls. Beta-diversity was also associated with breast cancer and nonmalignant breast disease compared to controls (P ≤ .001). The relative abundances of Porphyromonas and Fusobacterium were lower for breast cancer cases compared to controls. Alpha-diversity and presence/relative abundance of specific genera from the oral and fecal microbiome were strongly correlated among breast cancer cases, but weakly correlated among controls. Particularly, the relative abundance of oral Porphyromonas was strongly, inversely correlated with fecal Bacteroides among breast cancer cases (r = -.37, P ≤ .001). Many oral microbial metrics were strongly associated with breast cancer and nonmalignant breast disease, and strongly correlated with fecal microbiome among breast cancer cases, but not controls.
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Affiliation(s)
- Zeni Wu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Doratha A Byrd
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL USA
| | - Yunhu Wan
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | | | | | | | | | | | | | | | | | | | | | | | - Casey L. Dagnall
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
- Cancer Genomics Research Laboratory, Frederick National Lab for Cancer Research, Frederick, MD USA
| | - Kristine Jones
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
- Cancer Genomics Research Laboratory, Frederick National Lab for Cancer Research, Frederick, MD USA
| | - Amy Hutchinson
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
- Cancer Genomics Research Laboratory, Frederick National Lab for Cancer Research, Frederick, MD USA
| | - Belynda D. Hicks
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
- Cancer Genomics Research Laboratory, Frederick National Lab for Cancer Research, Frederick, MD USA
| | - Thomas U. Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Jianxin Shi
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Rob Knight
- Department of Pediatrics, University of California San Diego, La Jolla, CA, USA
| | | | | | - Seth Wiafe
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | | | | | - Jonine D. Figueroa
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
- Usher Institute and CRUK Edinburgh Centre, University of Edinburgh, Edinburgh, UK
| | - Rashmi Sinha
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | | | - Louise A. Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Emily Vogtmann
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
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10
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Ahearn TU, Choudhury PP, Derkach A, Wiafe-Addai B, Awuah B, Yarney J, Edusei L, Titiloye N, Adjei E, Vanderpuye V, Aitpillah F, Dedey F, Oppong J, Osei-Bonsu EB, Duggan MA, Brinton LA, Allen J, Luccarini C, Baynes C, Carvalho S, Dunning AM, Davis Lynn BC, Chanock SJ, Hicks BD, Yeager M, Chatterjee N, Biritwum R, Clegg-Lamptey JN, Nyarko K, Wiafe S, Ansong D, Easton DF, Figueroa JD, Garcia-Closas M. Breast Cancer Risk in Women from Ghana Carrying Rare Germline Pathogenic Mutations. Cancer Epidemiol Biomarkers Prev 2022; 31:1593-1601. [PMID: 35654374 DOI: 10.1158/1055-9965.epi-21-1397] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/16/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Risk estimates for women carrying germline mutations in breast cancer susceptibility genes are mainly based on studies of European ancestry women. METHODS We investigated associations between pathogenic variants (PV) in 34 genes with breast cancer risk in 871 cases [307 estrogen receptor (ER)-positive, 321 ER-negative, and 243 ER-unknown] and 1,563 controls in the Ghana Breast Health Study (GBHS), and estimated lifetime risk for carriers. We compared results with those for European, Asian, and African American ancestry women. RESULTS The frequency of PV in GBHS for nine breast cancer genes was 8.38% in cases and 1.22% in controls. Relative risk estimates for overall breast cancer were: (OR, 13.70; 95% confidence interval (CI), 4.03-46.51) for BRCA1, (OR, 7.02; 95% CI, 3.17-15.54) for BRCA2, (OR, 17.25; 95% CI, 2.15-138.13) for PALB2, 5 cases and no controls carried TP53 PVs, and 2.10, (0.72-6.14) for moderate-risk genes combined (ATM, BARD1, CHEK2, RAD51C, RAD52D). These estimates were similar to those previously reported in other populations and were modified by ER status. No other genes evaluated had mutations associated at P < 0.05 with overall risk. The estimated lifetime risks for mutation carriers in BRCA1, BRCA2, and PALB2 and moderate-risk genes were 18.4%, 9.8%, 22.4%, and 3.1%, respectively, markedly lower than in Western populations with higher baseline risks. CONCLUSIONS We confirmed associations between PV and breast cancer risk in Ghanaian women and provide absolute risk estimates that could inform counseling in Ghana and other West African countries. IMPACT These findings have direct relevance for breast cancer genetic counseling for women in West Africa.
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Affiliation(s)
- Thomas U Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Parichoy Pal Choudhury
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Andriy Derkach
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York
| | | | | | | | | | | | | | | | | | | | | | | | - Máire A Duggan
- Department of Pathology and Laboratory Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Louise A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Jamie Allen
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Craig Luccarini
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Caroline Baynes
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Sara Carvalho
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Alison M Dunning
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Brittny C Davis Lynn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Stephen J Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, Maryland
| | - Belynda D Hicks
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Meredith Yeager
- Cancer Genomics Research Laboratory, Leidos Biomedical Research, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Nilanjan Chatterjee
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | | | | | | | - Seth Wiafe
- Loma Linda University, School of Public Health, Loma Linda, California
| | | | - Douglas F Easton
- Centre for Cancer Genetic Epidemiology, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
- Centre for Cancer Genetic Epidemiology, Department of Oncology, University of Cambridge, Cambridge, United Kingdom
| | - Jonine D Figueroa
- Usher Institute and CRUK Edinburgh Centre, University of Edinburgh, Edinburgh, United Kingdom
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11
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Geczik AM, Falk RT, Xu X, Ansong D, Yarney J, Wiafe-Addai B, Edusei L, Dedey F, Vanderpuye V, Titiloye N, Adjei E, Aitpillah F, Osei-Bonsu E, Oppong J, Biritwum R, Nyarko K, Wiafe S, Awuah B, Clegg-Lamptey JN, Ahearn TU, Figueroa J, Garcia-Closas M, Brinton LA, Trabert B. Measured body size and serum estrogen metabolism in postmenopausal women: the Ghana Breast Health Study. Breast Cancer Res 2022; 24:9. [PMID: 35081987 PMCID: PMC8793253 DOI: 10.1186/s13058-022-01500-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 01/10/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Several anthropometric measures have been associated with hormone-related cancers, and it has been shown that estrogen metabolism in postmenopausal women plays an important role in these relationships. However, little is known about circulating estrogen levels in African women, and the relevance to breast cancer or breast cancer risk factors. To shed further light on the relationship of anthropometric factors and estrogen levels in African women, we examined whether measured body mass index (BMI), waist-to-hip ratio (WHR), height, and self-reported body size were associated with serum estrogens/estrogen metabolites in a cross-sectional analysis among postmenopausal population-based controls of the Ghana Breast Health Study.
Methods
Fifteen estrogens/estrogen metabolites were quantified using liquid chromatography-tandem mass spectrometry in serum samples collected from postmenopausal female controls enrolled in the Ghana Breast Health Study, a population-based case–control study conducted in Accra and Kumasi. Geometric means (GMs) of estrogens/estrogen metabolites were estimated using linear regression, adjusting for potential confounders.
Results
Measured BMI (≥ 30 vs. 18.5–24.9 kg/m2) was positively associated with parent estrogens (multivariable adjusted GM for unconjugated estrone: 78.90 (66.57–93.53) vs. 50.89 (43.47–59.59), p-value < 0.0001; and unconjugated estradiol: 27.83 (21.47–36.07) vs. 13.26 (10.37–16.95), p-value < 0.0001). Independent of unconjugated estradiol, measured BMI was associated with lower levels of 2-pathway metabolites and higher levels of 16-ketoestradriol. Similar patterns of association were found with WHR; however, the associations were not entirely independent of BMI. Height was not associated with postmenopausal estrogens/estrogen metabolite levels in African women.
Conclusions
We observed strong associations between measured BMI and parent estrogens and estrogen metabolite patterns that largely mirrored relations that have previously been associated with higher breast cancer risk in postmenopausal White women. The consistency of the BMI-estrogen metabolism associations in our study with those previously noted among White women suggests that estrogens likely explain part of the BMI-postmenopausal breast cancer risk in both groups. These findings merit evaluation in Black women, including prospective studies.
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12
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Attoh SA, Sarkodie E, Fatchu R, Kuma ABA, Asumanu E, McAddy M, Toppar A, Hobenu F, Agyeman-Bediako K, Edusei L, Akakpo PK. COVID-19 and sickle cell disease: autopsy findings of three deaths at the 37 Military Hospital, Accra, Ghana. Pan Afr Med J 2022; 41:332. [PMID: 35865842 PMCID: PMC9268333 DOI: 10.11604/pamj.2022.41.332.30035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 08/20/2021] [Indexed: 11/28/2022] Open
Abstract
The main pathological effects of COVID-19 infection have been reported to occur in the lungs, with the most pronounced manifestation being reported as Adult Respiratory Distress Syndrome (ARDS) with thromboembolic phenomena. Sickle Cell Disease (SCD) is a common genetic disorder present in 2% of newborns in Ghana. The complications of SCD include Vaso-Occlusive Crisis and Acute Chest Syndrome, which primarily manifest in the lungs. The effects of SCD on the progression of COVID-19 have not been extensively and clearly documented in literature. The objective was to describe the clinical and pathological findings in three SCD patients who died of COVID-19 related complications. A complete autopsy was performed on each of the three SCD patients who were presumed to have COVID-19. Lung swabs were subsequently taken and tested for SARS-CoV-2. The differences in histopathological findings of the three cases were highlighted and correlation with clinical findings was also done. Lung histopathological findings for all three cases were consistent with Acute Respiratory Distress Syndrome (ARDS)/ Diffuse Alveolar Damage (DAD) described for infections with COVID-19 and lung swabs tested for SARS-CoV-2 by real time Reverse Transcription Polymerase Chain Reaction (rRT-PCR) were positive. Though SCD has been reported not to adversely affect an individual´s chance of worse outcome when infected with COVID-19, our findings suggest otherwise. We suggest that SCD may be an important co-morbidity that needs to be considered in COVID-19 patients and when present needs to be considered as an adverse risk for poor outcomes. Also, post-discharge anti-coagulation and monitoring should be encouraged. More autopsies are required to fully understand the pathogenesis of COVID-19 in SCD patients.
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Affiliation(s)
- Seth Andrews Attoh
- Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
- Corresponding author: Seth Andrews Attoh, Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana.
| | | | - Raymond Fatchu
- Department of Clinical Pathology, 37 Military Hospital, Accra, Ghana
| | - Amma Benneh-Akwasi Kuma
- Department of Haematology, University of Ghana Medical School, Korle-Bu Teaching Hospital, Accra, Ghana
| | | | - Mary McAddy
- Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
| | - Alfred Toppar
- Medical Division, 37 Military Hospital, Accra, Ghana
| | - Frederick Hobenu
- Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
| | | | - Lawrence Edusei
- Department of Pathology, Korle-Bu Teaching Hospital, Accra, Ghana
| | - Patrick Kafui Akakpo
- Department of Pathology, School of Medical Sciences, University of Cape Coast, Cape Coast Teaching Hospital, Cape Coast, Ghana
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13
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Ahuno ST, Doebley AL, Ahearn TU, Yarney J, Titiloye N, Hamel N, Adjei E, Clegg-Lamptey JN, Edusei L, Awuah B, Song X, Vanderpuye V, Abubakar M, Duggan M, Stover DG, Nyarko K, Bartlett JMS, Aitpillah F, Ansong D, Gardner KL, Boateng FA, Bowcock AM, Caldas C, Foulkes WD, Wiafe S, Wiafe-Addai B, Garcia-Closas M, Kwarteng A, Ha G, Figueroa JD, Polak P. Circulating tumor DNA is readily detectable among Ghanaian breast cancer patients supporting non-invasive cancer genomic studies in Africa. NPJ Precis Oncol 2021; 5:83. [PMID: 34535742 PMCID: PMC8448727 DOI: 10.1038/s41698-021-00219-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 07/21/2021] [Indexed: 12/20/2022] Open
Abstract
Circulating tumor DNA (ctDNA) sequencing studies could provide novel insights into the molecular pathology of cancer in sub-Saharan Africa. In 15 patient plasma samples collected at the time of diagnosis as part of the Ghana Breast Health Study and unselected for tumor grade and subtype, ctDNA was detected in a majority of patients based on whole- genome sequencing at high (30×) and low (0.1×) depths. Breast cancer driver copy number alterations were observed in the majority of patients.
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Affiliation(s)
- Samuel Terkper Ahuno
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Anna-Lisa Doebley
- Molecular and Cellular Biology Program, University of Washington, Seattle, WA, USA
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Thomas U Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | | | | | - Nancy Hamel
- Research Institute of the McGill University Health Centre, Montréal, QC, Canada
| | | | | | | | | | - Xiaoyu Song
- Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | | | - Mustapha Abubakar
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Maire Duggan
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Daniel G Stover
- Stefanie Spielman Comprehensive Breast Cancer, The Ohio State University, Columbus, OH, USA
- Division of Medical Oncology, Comprehensive Cancer Center, The Ohio State University, Columbus, OH, USA
| | | | - John M S Bartlett
- Ontario Institute for Cancer Research, Toronto, ON, Canada
- Edinburgh Cancer Research Centre, Edinburgh, United Kingdom
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Francis Aitpillah
- Komfo Anokye Teaching Hospital, Kumasi, Ghana
- School of Medicine & Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Daniel Ansong
- Department of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Kevin L Gardner
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA
| | | | - Anne M Bowcock
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
- Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | | | - William D Foulkes
- Research Institute of the McGill University Health Centre, Montréal, QC, Canada
- Lady Davis Institute and Segal Cancer Centre, Jewish General Hospital, Montréal, QC, Canada
- Program in Cancer Genetics, Departments of Oncology and Human Genetics, McGill University, Montréal, QC, Canada
| | - Seth Wiafe
- School of Public Health, Loma Linda University, Loma Linda, CA, USA
| | | | | | - Alexander Kwarteng
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
- Kumasi Center for Collaborative Research in Tropical Medicine (KCCR), Kumasi, Ghana
| | - Gavin Ha
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA.
| | - Jonine D Figueroa
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA.
- CRUK Edinburgh Centre, University of Edinburgh, Edinburgh, UK.
| | - Paz Polak
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.
- Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York, USA.
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14
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Ahuno S, Doebley AL, Ahearn T, Yarney J, Titiloye N, Hamel N, Adjei E, Clegg-Lamptey JN, Edusei L, Awuah B, Song X, Vanderpuye V, Abubakar M, Duggan M, Stover D, Nyarko K, Bartlet J, Aitpillah F, Ansong D, Gardner K, Bowcock A, Caldas C, Foulkes W, Wiafe S, Wiafe-Addai, Garcia-Closas M, Kwarteng A, Ha G, Figueroa J, Polak P. Abstract 81: Studying Ghanian Cancer Genomes Using Cell-free DNA. Cancer Epidemiol Biomarkers Prev 2021. [DOI: 10.1158/1538-7755.asgcr21-81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Purpose: Analysis of cell free DNA could provide a rapid and non-invasive approach to detect cancer and provide new molecular insights in many African countries where expert pathology is lacking. Hence, we tested whether whole-genome sequencing of cfDNA (WGS-cfDNA) could identify somatic alterations that drive breast cancer.
Methods: We conducted a pilot on 15 Ghanaian women (median age 49.5 years) recruited as part of the Ghana Breast Health Study. cfDNA was extracted and subjected to WGS at 30x and 0.1x. ichorCNA software was used to predict copy number alterations and ctDNA fractions.
Results: We found extensive amplification and deletion of multiple chromosomal regions including those with oncogenes and tumor suppressor genes associated with breast cancer. Similar copy number alterations for selected breast cancer genes were observed with 0.1x and 30x cfDNA-WGS with increasing concordance between the two instruments as the ctDNA fraction increases. We observed a high frequency (>50%) of copy number gain in 3/5 regions and potential target genes for the amplification (chr8p11-12 [ZNF703] n=8, 53.3%; chr8q24.2 [MYC] n=9, 60%; chr19q12 [CCNE1] n=9, 60%), which were in agreement to previous observations among African-American (AA) ancestry compared to European-American (EA) ancestry in TCGA datasets.
Conclusion: Our data provided evidence that ctDNA-based genomic studies are possible and ctDNA analysis could be a tool for future molecular oncology studies in Africa for cancer etiology, surveillance and clinical trials.
Citation Format: Samuel Ahuno, Anna-Lisa Doebley, Thomas Ahearn, Joel Yarney, Nicholas Titiloye, Nancy Hamel, Ernest Adjei, Joe-Nat Clegg-Lamptey, Lawrence Edusei, Baffour Awuah, Xiaoyu Song, Verne Vanderpuye, Mustapha Abubakar, Maire Duggan, Daniel Stover, Kofi Nyarko, John Bartlet, Francis Aitpillah, Daniel Ansong, Kevin Gardner, Anne Bowcock, Carlos Caldas, William Foulkes, Seth Wiafe, Wiafe-Addai, Montserrat Garcia-Closas, Alexander Kwarteng, Gavin Ha, Jonine Figueroa, Paz Polak, On Behalf Of Ghana Breast Health Study Team. Studying Ghanian Cancer Genomes Using Cell-free DNA [abstract]. In: Proceedings of the 9th Annual Symposium on Global Cancer Research; Global Cancer Research and Control: Looking Back and Charting a Path Forward; 2021 Mar 10-11. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2021;30(7 Suppl):Abstract nr 81.
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Affiliation(s)
- Samuel Ahuno
- 1Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana,
| | - Anna-Lisa Doebley
- 2Molecular and Cellular Biology Program, University of Washington, Seattle, WA, USA,
| | - Thomas Ahearn
- 3Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA,
| | | | | | - Nancy Hamel
- 6Research Institute of the McGill University Health Centre, Montréal, QC, Canada,
| | | | | | | | | | - Xiaoyu Song
- 7Department of Population Health Science and Policy, Icahn School of Medicine at Mount Sinai, New York, NY, USA,
| | | | - Mustapha Abubakar
- 3Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA,
| | - Maire Duggan
- 8Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada,
| | - Daniel Stover
- 9Stefanie Spielman Comprehensive Breast Cancer, The Ohio State University, Columbus, OH, USA,
| | | | - John Bartlet
- 11Ontario Institute for Cancer Research, Toronto, Ontario, Canada,
| | | | - Daniel Ansong
- 12Department of Child Health, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana,
| | - Kevin Gardner
- 13Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY, USA,
| | - Anne Bowcock
- 14Departments of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York City, New York,
| | - Carlos Caldas
- 15Cancer Research UK Cambridge Centre, Cambridge, UK,
| | - William Foulkes
- 6Research Institute of the McGill University Health Centre, Montréal, QC, Canada,
| | - Seth Wiafe
- 16Loma Linda University, School of Public Health, Loma Linda, CA, USA,
| | | | | | - Alexander Kwarteng
- 1Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana,
| | - Gavin Ha
- 18Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA,
| | - Jonine Figueroa
- 19Usher Institute, Edinburgh, United Kingdom,
- 20Cancer Research UK Edinburgh Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Paz Polak
- 1Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana,
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15
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Ahuno ST, Edusei L, Titiloye N, Adjei E, Clegg-Lamptey JN, Yarney J, Wiafe-Addai B, Awuah B, Vanderpuye V, Duggan M, Wiafe S, Nyarko K, Aitpillah F, Ansong D, Ahearn T, Kwarteng A, Abubakar M, Garcia-Closas M, Ha G, Figueroa JD, Polak P. Abstract PO-093: Circulating tumor DNA (ctDNA) from peripheral blood is detectable among Ghanaian breast cancer patients. Cancer Epidemiol Biomarkers Prev 2020. [DOI: 10.1158/1538-7755.disp20-po-093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Cancer incidence is rising and mortality rates are high in Africa, where access to molecular pathology is limited. Analysis of cancer-related mutations in circulating tumor DNA (ctDNA) from cell-free DNA (cfDNA) that is shed into the bloodstream by tumor cells could be transformative to the African continent and provide new molecular insights. Using samples collected from the Ghana Breast Health Study we tested whether whole-genome sequencing (WGS) of cfDNA could detect ctDNA and identify somatic alterations that drive breast cancer. We selected 15 breast cancer patients (median age 49.5 years) with duplicated plasma samples. Pathologic grade, age, and immunohistochemical (IHC) stains for estrogen receptor (ER), progesterone receptor (PR) and HER2 were available for the majority of patients (>80%). cfDNA extraction and WGS at 30x and 0.1x was performed. ichorCNA software was used on Next Generation Sequencing (NGS) read counts to estimate the ctDNA fraction and predict copy number alteration profiles. High depth 30x cfDNA-WGS analysis showed that all 15 breast cancer patients had 1% ctDNA or greater (median[IQR] 3.96%[2.22%-8.13%]). There was high concordance between estimated ctDNA fraction using 0.1x and 30x WGS (Pearson r = 0.9). Copy number profiling showed extensive amplification and deletion of multiple chromosomal regions containing important cancer genes (such as MYC, PIK3CA, TERT, and GATA3). Of the four patients classified as HER2 positive based on IHC, two had increased ERBB2 copy number (50 and 3 copies, respectively). Our data provide evidence that ctDNA-based genomic studies are possible and ctDNA analysis could be a tool for future molecular oncology studies in Africa for cancer etiology, surveillance and clinical trials.
Citation Format: Samuel T. Ahuno, Lawrence Edusei, Nicolas Titiloye, Ernest Adjei, Joe-Nat Clegg-Lamptey, Joel Yarney, Beatrice Wiafe-Addai, Baffour Awuah, Verne Vanderpuye, Maire Duggan, Seth Wiafe, Kofi Nyarko, Francis Aitpillah, Daniel Ansong, Thomas Ahearn, Alexander Kwarteng, Mustapha Abubakar, Montserrat Garcia-Closas, Gavin Ha, Jonine D. Figueroa, Paz Polak, on behalf of the Ghana Breast Health Study Team. Circulating tumor DNA (ctDNA) from peripheral blood is detectable among Ghanaian breast cancer patients [abstract]. In: Proceedings of the AACR Virtual Conference: Thirteenth AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2020 Oct 2-4. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2020;29(12 Suppl):Abstract nr PO-093.
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Affiliation(s)
- Samuel T. Ahuno
- 1Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana,
| | | | | | - Ernest Adjei
- 3Komfo Anokye Teaching Hospital, Kumasi, Ashanti, Ghana,
| | | | - Joel Yarney
- 4Komfo Anokye Teaching Hospital, Kumasi, Ashanti, Ghana,
| | | | - Baffour Awuah
- 4Komfo Anokye Teaching Hospital, Kumasi, Ashanti, Ghana,
| | | | - Maire Duggan
- 6Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada,
| | - Seth Wiafe
- 7Loma Linda University, School of Public Health, Loma Linda, CA,
| | - Kofi Nyarko
- 8University of Ghana, Accra, Greater Accra, Ghana,
| | | | - Daniel Ansong
- 9Department of Child Health, School of Medicine and Dentistry, Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana,
| | - Thomas Ahearn
- 10Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD,
| | - Alexander Kwarteng
- 11Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ashanti, Ghana,
| | - Mustapha Abubakar
- 10Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD,
| | | | - Gavin Ha
- 12Division of Public Health Services, Fred Hutchinson Cancer Research Center, Seattle, WA,
| | - Jonine D. Figueroa
- 13Usher Institute and CRUK Edinburgh Centre, University of Edinburgh, Edinburgh, United Kingdom,
| | - Paz Polak
- 14Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY
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16
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Attoh S, Segborwotso RP, Akoriyea SK, Teddy G, Edusei L, Hobenu F, Agyemang-Bediako K, Toppar A, Fatchu RD, Akakpo PK. COVID-19 autopsy reports from the Ga-East Municipal and the 37 Military Hospitals in Accra, Ghana. Ghana Med J 2020; 54:52-61. [PMID: 33976442 PMCID: PMC8087362 DOI: 10.4314/gmj.v54i4s.9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Since the declaration of COVID-19 by the World Health Organisation (WHO) as a global pandemic on 11th March 2020, the number of deaths continue to increase worldwide. Reports on its pathologic manifestations have been published with very few from the Sub-Saharan African region. This article reports autopsies on COVID-19 patients from the Ga-East and the 37 Military Hospitals to provide pathological evidence for better understanding of COVID-19 in Ghana. METHODS Under conditions required for carrying out autopsies on bodies infected with category three infectious agents, with few modifications, complete autopsies were performed on twenty patients with ante-mortem and/or postmortem RT -PCR confirmed positive COVID-19 results, between April and June, 2020. RESULTS There were equal proportion of males and females. Thirteen (65%) of the patients were 55years or older with the same percentage (65%) having Type II diabetes and/or hypertension. The most significant pathological feature found at autopsy was diffuse alveolar damage. Seventy per cent (14/20) had associated thromboemboli in the lungs, kidneys and the heart. Forty per cent (6/15) of the patients that had negative results for COVID-19 by the nasopharyngeal swab test before death had positive results during postmortem using bronchopulmonary specimen. At autopsy all patients were identified to have pre-existing medical conditions. CONCLUSION Diffuse alveolar damage was a key pathological feature of deaths caused by COVID-19 in all cases studied with hypertension and diabetes mellitus being major risk factors. Individuals without co-morbidities were less likely to die or suffer severe disease from SARS-CoV-2. FUNDING None declared.
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Affiliation(s)
- Seth Attoh
- Pathology Division, 37 Military Hospital, Accra, Ghana
| | | | | | - Gina Teddy
- Ghana Centre for Health Systems and Policy Research, Ghana Institute of Management and Public Administration, Accra, Ghana
| | - Lawrence Edusei
- Department of Pathology, Korle-Bu Teaching Hospital, Accra, Ghana
| | | | | | - Alfred Toppar
- Medical Division, 37 Military Hospital, Accra, Ghana
| | | | - Patrick K Akakpo
- Department of Pathology, School of Medical Sciences, University of Cape Coast and Cape Coast Teaching Hospital, Cape Coast, Ghana
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17
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Attoh SA, Hobenu F, Edusei L, Agyeman-Bediako K, Laryea CT, Nyarko EO, Amedi MK, Asmah RH, Asumanu E, McAddy M, Maison A, Nyarko G, Fatchu RD, Akakpo K. Postmortem diagnosis of COVID-19: Antemortem challenges of three cases at the 37 Military Hospital, Accra, Ghana. Afr J Lab Med 2020; 9:1290. [PMID: 33235831 PMCID: PMC7670026 DOI: 10.4102/ajlm.v9i1.1290] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/21/2020] [Indexed: 12/22/2022] Open
Abstract
Background Consistency among clinical symptoms, laboratory results and autopsy findings can be a quality measure in the diagnosis of coronavirus disease 2019 (COVID-19). There have been classic clinical cases that have met the case definition of COVID-19 but real-time reverse-transcription polymerase chain reaction (rRT-PCR) tests of nasopharyngeal swabs were negative. Objectives This study aimed to share pathological observations of autopsies performed at the 37 Military Hospital’s Department of Anatomical Pathology on three presumed COVID-19 cases in Accra, Ghana. Method Complete autopsies with detailed gross and histopathological analysis were conducted between April 2020 and May 2020 on three suspected COVID-19 cases, of which two had initial negative (rRT-PCR) nasopharyngeal tests. Postmortem bronchopulmonary samples of two cases were collected and tested by rRT-PCR for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Results The two postmortem bronchopulmonary samples tested for SARS-CoV-2 by rRT-PCR were positive. Though no postmortem bronchopulmonary sample was taken from the third case, a close contact tested positive for SARS-CoV-2 in later contact tracing. For all three cases, lung histopathological findings were consistent with Acute Respiratory Distress Syndrome. Conclusion The outcome of COVID-19 testing is dependent on the sample type and accuracy of sampling amongst other factors. Histopathological findings vary and may be dependent on a patient’s modifying factors, as well as the duration of infection. More autopsies are required to fully understand the pathogenesis of this disease in Ghanaians.
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Affiliation(s)
- Seth A Attoh
- J.M. Wadhwani Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
| | - Frederick Hobenu
- J.M. Wadhwani Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
| | - Lawrence Edusei
- Department of Pathology, Korle-bu Teaching Hospital, Accra, Ghana
| | - Kwasi Agyeman-Bediako
- J.M. Wadhwani Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
| | | | | | | | - Richard H Asmah
- Department of Molecular Biology, University of Health and Allied Sciences, Ho, Ghana
| | - Edward Asumanu
- Department of Surgery, 37 Military Hospital, Accra, Ghana
| | - Mary McAddy
- J.M. Wadhwani Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
| | - Anthony Maison
- J.M. Wadhwani Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
| | - Godwin Nyarko
- J.M. Wadhwani Department of Anatomical Pathology, 37 Military Hospital, Accra, Ghana
| | | | - Kafui Akakpo
- Department of Pathology, University of Cape Coast, Cape Coast, Ghana
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18
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Figueroa JD, Davis Lynn BC, Edusei L, Titiloye N, Adjei E, Clegg-Lamptey JN, Yarney J, Wiafe-Addai B, Awuah B, Duggan MA, Wiafe S, Nyarko K, Aitpillah F, Ansong D, Hewitt SM, Ahearn T, Garcia-Closas M, Brinton LA. Reproductive factors and risk of breast cancer by tumor subtypes among Ghanaian women: A population-based case-control study. Int J Cancer 2020; 147:1535-1547. [PMID: 32068253 DOI: 10.1002/ijc.32929] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 01/09/2020] [Accepted: 01/29/2020] [Indexed: 02/05/2023]
Abstract
Higher proportions of early-onset and estrogen receptor (ER) negative cancers are observed in women of African ancestry than in women of European ancestry. Differences in risk factor distributions and associations by age at diagnosis and ER status may explain this disparity. We analyzed data from 1,126 cases (aged 18-74 years) with invasive breast cancer and 2,106 controls recruited from a population-based case-control study in Ghana. Odds ratios (OR) and 95% confidence intervals (CI) were estimated for menstrual and reproductive factors using polytomous logistic regression models adjusted for potential confounders. Among controls, medians for age at menarche, parity, age at first birth, and breastfeeding/pregnancy were 15 years, 4 births, 20 years and 18 months, respectively. For women ≥50 years, parity and extended breastfeeding were associated with decreased risks: >5 births vs. nulliparous, OR 0.40 (95% CI 0.20-0.83) and 0.71 (95% CI 0.51-0.98) for ≥19 vs. <13 breastfeeding months/pregnancy, which did not differ by ER. In contrast, for earlier onset cases (<50 years) parity was associated with increased risk for ER-negative tumors (p-heterogeneity by ER = 0.02), which was offset by extended breastfeeding. Similar associations were observed by intrinsic-like subtypes. Less consistent relationships were observed with ages at menarche and first birth. Reproductive risk factor distributions are different from European populations but exhibited etiologic heterogeneity by age at diagnosis and ER status similar to other populations. Differences in reproductive patterns and subtype heterogeneity are consistent with racial disparities in subtype distributions.
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Affiliation(s)
- Jonine D Figueroa
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD.,Usher Institute and CRUK Edinburgh Centre, University of Edinburgh, Edinburgh, United Kingdom
| | - Brittny C Davis Lynn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | | | | | | | | | | | | | | | - Maire A Duggan
- Department of Pathology and Laboratory Medicine, University of Calgary, Calgary, AB, Canada
| | - Seth Wiafe
- Loma Linda University, School of Public Health, Loma Linda, CA
| | | | | | - Daniel Ansong
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Stephen M Hewitt
- Center for Cancer Research, National Cancer Institute, Bethesda, MD
| | - Thomas Ahearn
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | | | - Louise A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
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Figueroa JD, Lynn BD, Edusei L, Titiloye N, Adjei E, Clegg-Lamptey JN, Wiafe-Addai B, Awuah B, Garcia-Closas M, Brinton LA. Abstract 622: Reproductive factors and breast cancer risk to women in Ghana, West Africa. Cancer Res 2019. [DOI: 10.1158/1538-7445.am2019-622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Women of African ancestry have a higher proportion of early onset and estrogen receptor (ER) negative cancers compared to women of European descent. Differences in risk associations by age at onset and ER status for reproductive factors, particularly parity and breastfeeding, have been proposed as possible contributors to this racial disparity. We therefore investigated these relations in the Ghana Breast Health Study.
Methods: The study population included 1,126 women diagnosed with invasive breast cancer and 2,106 population controls aged 18-74 years at recruitment (2013-2015) in three hospitals in Accra and Kumasi, Ghana. Factors evaluated included age at menarche, number of livebirths, age at first livebirth, and median months breastfeeding per pregnancy. Odds ratios (OR) and 95% confidence intervals (CI) were estimated using logistic regression models overall and stratified by age. Associations by ER status were estimated using polytomous logistic regression models.
Results: We observed associations with parity and extended breastfeeding duration per pregnancy that were modified by age at onset (<50 vs. >50 years, P-het <0.02 and 0.01, respectively). For women <50 years, the OR was 0.70 (95% CI 0.42-1.18) for those with >5 v. 0 livebirths, but there was no association with breastfeeding months per pregnancy (>18 vs <12 months: OR (95%CI) = 1.04 (0.75-1.44). For women >50 years, both higher number of livebirths and longer durations of breastfeeding months per pregnancy were associated with lower breast cancer risk: OR (95%CI) = 0.40 (0.20-0.83) for >5 vs 0 livebirths and 0.71 (0.51-0.98) for >18 vs <12 breastfeeding months per pregnancy. Data were consistent with a higher risk of early onset (<50 years) ER-negative breast cancer for parous compared to nulliparous women (1.63 (0.82-3.25), that was attenuated by extended breastfeeding (0.72 (0.45-1.14) for >18 vs <12 breastfeeding months per pregnancy).
Conclusion: In this population of women in West Africa, increased number of live births and breastfeeding months per pregnancy were strong protective factors for later onset breast cancer. Among younger women, these trends were modified by ER status, with opposite associations for parity in ER+ vs. ER- tumors and an inverse association with breastfeeding in the ER- tumors that was not seen in the ER+ tumors. Our data support previous reports in African-American women of differential associations of parity and breastfeeding by ER status and age at onset. Further attention should focus on how reproductive factors contribute to observed racial heterogeneity in breast cancer.
Citation Format: Jonine D. Figueroa, Brittny Davis Lynn, Lawrence Edusei, Nicolas Titiloye, Ernest Adjei, Joe Nat Clegg-Lamptey, Beatrice Wiafe-Addai, Baffour Awuah, Montserrat Garcia-Closas, Louise A. Brinton. Reproductive factors and breast cancer risk to women in Ghana, West Africa [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2019; 2019 Mar 29-Apr 3; Atlanta, GA. Philadelphia (PA): AACR; Cancer Res 2019;79(13 Suppl):Abstract nr 622.
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20
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Brinton LA, Figueroa JD, Ansong D, Nyarko KM, Wiafe S, Yarney J, Biritwum R, Brotzman M, Thistle JE, Adjei E, Aitpillah F, Dedey F, Edusei L, Titiloye N, Awuah B, Clegg-Lamptey JN, Wiafe-Addai B, Vanderpuye V. Skin lighteners and hair relaxers as risk factors for breast cancer: results from the Ghana breast health study. Carcinogenesis 2018; 39:571-579. [PMID: 29324997 DOI: 10.1093/carcin/bgy002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 01/05/2018] [Indexed: 01/14/2023] Open
Abstract
Skin lighteners and hair relaxers, both common among women of African descent, have been suggested as possibly affecting breast cancer risk. In Accra and Kumasi, Ghana, we collected detailed information on usage patterns of both exposures among 1131 invasive breast cancer cases and 2106 population controls. Multivariate analyses estimated odds ratios (ORs) and 95% confidence intervals (CIs) after adjustment for breast cancer risk factors. Control usage was 25.8% for ever use of skin lighteners and 90.0% for use of hair relaxers for >1 year. The OR for skin lighteners was 1.10 (95% CI 0.93-1.32), with higher risks for former (1.21, 0.98-1.50) than current (0.96, 0.74-1.24) users. No significant dose-response relations were seen by duration, age at first use or frequency of use. In contrast, an OR of 1.58 (95% CI 1.15-2.18) was associated with use of hair relaxers, with higher risks for former (2.22, 1.56-3.16) than current (1.39, 1.00-1.93) users. Although numbers of burns were inconsistently related to risk, associations increased with duration of use, restricted to women who predominately used non-lye products (P for trend < 0.01). This was most pronounced among women with few children and those with smaller tumors, suggesting a possible role for other unmeasured lifestyle factors. This study does not implicate a substantial role for skin lighteners as breast cancer risk factors, but the findings regarding hair relaxers were less reassuring. The effects of skin lighteners and hair relaxers on breast cancer should continue to be monitored, especially given some biologic plausibility for their affecting risk.
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Affiliation(s)
- Louise A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
| | - Jonine D Figueroa
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA.,Usher Institute of Population Health Sciences and Informatics, Edinburgh Cancer Research Centre, Edinburgh, Scotland
| | | | | | | | | | | | | | - Jake E Thistle
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD, USA
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21
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Brinton LA, Awuah B, Nat Clegg-Lamptey J, Wiafe-Addai B, Ansong D, Nyarko KM, Wiafe S, Yarney J, Biritwum R, Brotzman M, Adjei AA, Adjei E, Aitpillah F, Edusei L, Dedey F, Nyante SJ, Oppong J, Osei-Bonsu E, Titiloye N, Vanderpuye V, Brew Abaidoo E, Arhin B, Boakye I, Frempong M, Ohene Oti N, Okyne V, Figueroa JD. Design considerations for identifying breast cancer risk factors in a population-based study in Africa. Int J Cancer 2017; 140:2667-2677. [PMID: 28295287 DOI: 10.1002/ijc.30688] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 01/30/2017] [Accepted: 02/08/2017] [Indexed: 02/04/2023]
Abstract
Although breast cancer is becoming more prevalent in Africa, few epidemiologic studies have been undertaken and appropriate methodologic approaches remain uncertain. We therefore conducted a population-based case-control study in Accra and Kumasi, Ghana, enrolling 2,202 women with lesions suspicious for breast cancer and 2,161 population controls. Biopsy tissue for cases prior to neoadjuvant therapy (if given), blood, saliva and fecal samples were sought for study subjects. Response rates, risk factor prevalences and odds ratios for established breast cancer risk factors were calculated. A total of 54.5% of the recruited cases were diagnosed with malignancies, 36.0% with benign conditions and 9.5% with indeterminate diagnoses. Response rates to interviews were 99.2% in cases and 91.9% in controls, with the vast majority of interviewed subjects providing saliva (97.9% in cases vs. 98.8% in controls) and blood (91.8% vs. 82.5%) samples; lower proportions (58.1% vs. 46.1%) provided fecal samples. While risk factor prevalences were unique as compared to women in other countries (e.g., less education, higher parity), cancer risk factors resembled patterns identified elsewhere (elevated risks associated with higher levels of education, familial histories of breast cancer, low parity and larger body sizes). Subjects with benign conditions were younger and exhibited higher socioeconomic profiles (e.g., higher education and lower parity) than those with malignancies, suggesting selective referral influences. While further defining breast cancer risk factors in Africa, this study showed that successful population-based interdisciplinary studies of cancer in Africa are possible but require close attention to diagnostic referral biases and standardized and documented approaches for high-quality data collection, including biospecimens.
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Affiliation(s)
- Louise A Brinton
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Florence Dedey
- Korle Bu Teaching Hospital, Accra, Ghana.,University of Ghana, Accra, Ghana
| | - Sarah J Nyante
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD.,Currently at the University of North Carolina at Chapel Hill, Chapel Hill, NC
| | | | | | | | | | | | | | | | | | | | | | - Jonine D Figueroa
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda, MD.,Currently at the Usher Institute of Population Health Sciences and Informatics, Edinburgh Cancer Research Centre, Edinburgh, Scotland
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22
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Brinton L, Figueroa J, Adjei E, Ansong D, Biritwum R, Edusei L, Nyarko KM, Wiafe S, Yarney J, Addai BW, Awuah B, Clegg-Lamptey JN. Factors contributing to delays in diagnosis of breast cancers in Ghana, West Africa. Breast Cancer Res Treat 2016; 162:105-114. [PMID: 28025716 DOI: 10.1007/s10549-016-4088-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Accepted: 12/15/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND Late diagnoses and poor prognoses of breast cancer are common throughout Africa. METHODS To identify responsible factors, we utilized data from a population-based case-control study involving 1184 women with breast malignancies conducted in three hospitals in Accra and Kumasi, Ghana. Interviews focused on potential breast cancer risk factors as well as factors that might contribute to presentation delays. We calculated odds ratios (OR) and 95% confidence intervals (CI) comparing malignances with biopsy masses larger than 5 cm. (62.4% of the 1027 cases with measurable lesions) to smaller lesions. RESULTS In multivariate analyses, strong predictors of larger masses were limited education (OR 1.96, 95% CI 1.32-2.90 <primary vs. ≥senior secondary school), being separated/divorced or widowed (1.75, 1.18-2.60 and 2.25, 1.43-3.55, respectively, vs. currently married), delay in care seeking after onset of symptoms (2.64, 1.77-3.95 for ≥12 vs. ≤2 months), care having initially been sought from someone other than a doctor/nurse (1.86, 0.85-4.09), and frequent use of herbal medications/treatment (1.51, 0.95-2.43 for ≥3x/day usage vs. none). Particularly high risks associated with these factors were found among less educated women; for example, women with less than junior secondary schooling who delayed seeking care for breast symptoms for 6 months or longer were at nearly 4-times the risk of more educated women who promptly sought assistance. CONCLUSIONS Our findings suggest that additional communication, particularly among less educated women, could promote earlier breast cancer diagnoses. Involvement of individuals other than medical practitioners, including traditional healers, may be helpful in this process.
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Affiliation(s)
- Louise Brinton
- National Cancer Institute, 9609 Medical Center Drive, Room 7E-442, MSC 9776, Bethesda, MD, 20892-9776, USA.
| | - Jonine Figueroa
- National Cancer Institute, 9609 Medical Center Drive, Room 7E-442, MSC 9776, Bethesda, MD, 20892-9776, USA.,University of Edinburgh, Edinburgh, Scotland, UK
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Der EM, Gyasi RK, Tettey Y, Edusei L, Bayor MT, Jiagge E, Gyakobo M, Merajver SD, Newman LA. Triple-Negative Breast Cancer in Ghanaian Women: The Korle Bu Teaching Hospital Experience. Breast J 2016; 21:627-33. [PMID: 26547900 DOI: 10.1111/tbj.12527] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Breast cancers that have negative or extremely low expression of estrogen receptor and progesterone receptor and non-amplification of human epidermal growth factor receptor-2 (HER2)/neu are termed triple-negative breast cancer (TNBC). The majority of TNBC tumors belong to the biologically aggressive basal subtype, and they cannot be managed with targeted endocrine or anti-HER2/neu agents. In western, high resource environments, risk factors for TNBC include younger age at diagnosis and hereditary susceptibility. Women of African ancestry in the United States and in continental Africa have higher frequencies of TNBC, prompting speculation that this risk may have an inherited basis and may at least partially explain breast cancer survival disparities related to racial/ethnic identity. Efforts to document and confirm the breast cancer burden of continental Africa have been hampered by the limited availability of registry and immunohistochemistry resources. Our goal was to evaluate the breast cancers diagnosed in one of the largest health care facilities in western Africa, and to compare the frequencies as well as risk factors for TNBC versus non-TNBC in this large referral tertiary hospital. The Korle Bu Teaching Hospital is affiliated with the University of Ghana and is located in Accra, the capital of Ghana. We conducted an institutional, Department of Pathology-based review of the breast cancer cases seen at this facility for the 2010 calendar year, and for which histopathologic specimens were available. The overall study population of 223 breast cancer cases had a median age of 52.4 years, and most had palpable tumors larger than 5 cm in diameter. More than half were TNBC (130; 58.3%). We observed similar age-specific frequencies, distribution of stage at diagnosis and tumor grade among cases of TNBC compared to cases of non-TNBC. Ghanaian breast cancer patients tend to have an advanced stage distribution and relatively younger age at diagnosis compared to Caucasian Americans and African Americans. The triple-negative molecular marker pattern was the most common subtype of breast cancer seen among this sample of Ghanaian women, regardless of age, tumor grade, or stage of diagnosis. Research into the molecular pathogenesis of TNBC may help elucidate the reasons for its increased prevalence among women with African ancestry.
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Affiliation(s)
- Edmund M Der
- University of Ghana Medical School and Korle-Bu Teaching Hospital, Accra, Ghana
| | - Richard K Gyasi
- University of Ghana Medical School and Korle-Bu Teaching Hospital, Accra, Ghana
| | - Yao Tettey
- University of Ghana Medical School and Korle-Bu Teaching Hospital, Accra, Ghana
| | - Lawrence Edusei
- University of Ghana Medical School and Korle-Bu Teaching Hospital, Accra, Ghana
| | - Marcel T Bayor
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Evelyn Jiagge
- University of Michigan Medical School, Ann Arbor, Michigan
| | | | - Sofia D Merajver
- University of Michigan Medical School, Ann Arbor, Michigan.,Center for Global Health, University of Michigan, Ann Arbor, Michigan
| | - Lisa A Newman
- University of Michigan Medical School, Ann Arbor, Michigan.,Center for Global Health, University of Michigan, Ann Arbor, Michigan
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Figueroa JD, Edusei L, Adjei E, Titiloye N, Ylaya K, Addai B, Clegg-Lamptey JN, Awuah B, Nyarko K, Ansong D, Wiafe S, Brinton LA, Hewitt S. Abstract C11: Impact of pathologic specimen quality on classifying molecular subtypes of breast cancer: A pilot study from three hospitals in Ghana, Africa. Cancer Epidemiol Biomarkers Prev 2014. [DOI: 10.1158/1538-7755.disp13-c11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Background: Breast cancer is a heterogeneous disease with clinically, molecularly and pathologically defined subtypes that have different etiologies, clinical presentations and outcomes. African women reportedly have especially high rates of breast cancers that are estrogen receptor (ER) or progesterone receptor (PR) negative, or triple negative [ER, PR and human epidermal growth factor receptor-2 (HER-2) negative], with the proportion reported for triple negative breast cancers ranging from 28-82%, compared to 11-20% among Caucasian populations. However, it is unclear to what extent pathology and specimen handling affect receptor measurements in Africa. Here we sought to determine pathology specimen quality of breast tumor tissues from three hospitals in Ghana where we are conducting a molecular epidemiologic study of breast cancer.
Methods: We acquired 15 formalin-fixed paraffin-embedded (FFPE) archived breast cancer tissue blocks with specimens obtained at biopsy (N=5) or surgery (N=10) from three hospitals in Ghana. Blocks were re-embedded and four 0.5um whole sections were cut for hematoxylin and eosin stains, and immunohistochemistry (IHC) using previously validated protocols for ER (clone 1D5), PR (clone PgR1294) and HER2 (polyclonal), all obtained from Dako (Carpinteria CA). Specimens were considered ER or PR positive if 10% or more cells stained positive, while HER2 was considered positive if intensity of staining was 3+.
Results: Specimens were noted to be embedded in high-melting temperature paraffin. To perform ER, PR, and HER2 IHC staining, deparaffinization procedures were optimized for hard paraffin. Zonal and gradient staining patterns were noted in surgical specimens, features that are likely due to delayed/prolonged fixation. Zonal/gradient staining issues were not identified in the needle biopsies, which were smaller compared to specimens collected at surgery and generally placed in buffered formalin immediately after collection. IHC assays of the tumor specimens revealed that 67% were ER-positive, 20% PR-positive, and 66% HER2 positive. The proportion negative for all three markers was 13%.
Conclusion: In contrast to previous reports for African breast cancer patients, within our sample of FFPE breast cancers from Ghana we found a higher prevalence of ER positive tumors and a lower prevalence of tumors negative for all three markers. These results suggest that the high rates of hormone receptor negativity previously reported in African populations may be inaccurate due to various sources of error, particularly fixation time and IHC staining protocols. Future studies focusing on proper documentation of sample collection procedures and optimization of IHC methods are required to determine the true prevalence of molecular subtypes of breast cancer among African women. Such efforts are essential for breast cancer surveillance, identifying etiologic factors for prevention efforts and developing more effective treatment programs.
Citation Format: Jonine D. Figueroa, Lawrence Edusei, Ernest Adjei, Nicholas Titiloye, Kris Ylaya, Beatrice Addai, Joe Nat Clegg-Lamptey, Baffour Awuah, Kofi Nyarko, Daniel Ansong, Seth Wiafe, Louise A. Brinton, Stephen Hewitt. Impact of pathologic specimen quality on classifying molecular subtypes of breast cancer: A pilot study from three hospitals in Ghana, Africa. [abstract]. In: Proceedings of the Sixth AACR Conference: The Science of Cancer Health Disparities; Dec 6–9, 2013; Atlanta, GA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2014;23(11 Suppl):Abstract nr C11. doi:10.1158/1538-7755.DISP13-C11
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Affiliation(s)
| | | | | | | | - Kris Ylaya
- 1National Cancer Institute, Bethesda, MD,
| | | | | | | | | | | | - Seth Wiafe
- 4Peace and Love Hospital, Kumasi, Ghana,
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Renner LA, Salifu N, Edusei L, Segbefia C, Ekem I, Lartey M. CUTANEOUS INVOLVEMENT OF HODGKIN LYMPHOMA IN A CHILD--CASE REPORT. East Afr Med J 2014; 91:70-72. [PMID: 26859023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Specific cutaneous involvement in Hodgkin Lymphoma is rare and has not been reported in the younger paediatric age group. We report a case of a ten year old girl who presented with specific cutaneous involvement, confirmed using immunohistochemical stains. Treatment with combination chemotherapy resulted in rapid disappearance of the lesions and contrary to the generally poor prognosis associated with most other such reported cases in adults, she has clinically remained disease free two and a half years post treatment. Obtaining an accurate pathological diagnosis is essential to ensure appropriate treatment even in resource limited settings as illustrated by this case.
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Abstract
BACKGROUND Retinobalstoma, the commonest childhood malignant intraocular tumour, is usually diagnosed early with over 90% survival rate in developed countries. In developing countries, the diagnosis is late resulting in less than 50% survival. OBJECTIVE To determine retinoblastoma stages at presentation and patients' outcomes. DESIGN Retrospective case series. METHODS The clinical and histopathological records of children with retinoblastoma seen from May 2004 to December 2005 were studied. Data was analysed for mode of presentation, laterality, clinical staging using Reese-Ellsworth (R-E) classification, histopathological high risk features (HHRF) for metastasis, and patient outcome. SETTING Ophthalmology Unit, Korle-Bu Teaching Hospital, Ghana. RESULTS Twenty-three patients presented with retinoblastoma over the period. Males were 12(52.2%). The age range from 1 to 84 months, mean 36.3(±22.15) and median (36 months). Nineteen (82.6%) had unilateral and 4(17.4%) bilateral disease. The common clinical presentations were leukocoria in 20(87.0%), proptosis 8(34.8%), strabismus 5(21.7%) and red eye 5(21.7%). The clinical features were commensurate with R-E stage V in 20(87.0%) patients, 2(8.7%) with orbital recurrence and 1(4.3%) with post-enucleation anophthalmos. HHRFs were present in 9(75%) enucleated eyes with invasion of optic nerve as the commonest site (7/9). The patients were followed up for 1 day to 19 months. Eight abandoned treatment, 2 were discharged for palliative treatment, 2 out of 5 with metastasis died and 6 had no metastases at their last visit. Common sites for metastasis were the bone marrow, brain and orbit. CONCLUSION Majority of the patients presented with advanced disease manifesting as leukocoria, proptosis, RE stages V disease and poor outcome.
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Affiliation(s)
- V Essuman
- Ophthalmology Unit, Department of Surgery, University of Ghana Medical School, PO Box 4236, Accra, Ghana
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