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3. Predicting the environmental suitability for Anopheles stephensi under the current conditions in Ghana

Author

Ismail, Rahmat Bint Yusif, Bozorg-Omid, Faramarz, Osei, Joseph Harold Nyarko, Pi-Bansa, Sellase, Frempong, Kwadwo Kyeremeh, Ofei, Mavis Koryo, Boakye, Helena Anokyewaa, Ansah-Owusu, Jane, Akorful, Sandra-Candys Adwirba, Tawiah-Mensah, Christopher Nii Laryea, Abudu, Mufeez, Asafu-Adjaye, Andy, Appawu, Maxwell Alexander, Boakye, Daniel Adjei, Vatandoost, Hassan, Sedaghat, Mohammad Mehdi, Youssefi, Fahimeh, Hanafi-Bojd, Ahmad Ali, and Dadzie, Samuel Kweku

Published
2024
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14. Low microfilaremia levels in three districts in Coastal Ghana with at least 16 years of mass drug administration and persistent transmission of lymphatic filariasis

Author

de Souza, Dziedzom K, Otchere, Joseph, Ahorlu, Collins S, Adu-Amankwah, Susan, Larbi, Irene A, Dumashie, Edward, McCarthy, Frances A, King, Sandra A, Otoo, Samson, Osabutey, Dickson, Osei, Joseph H N, Sedzro, Kojo M, Asiedu, Odame, Dadzie, Samuel K, Ayi, Irene, Marfo, Benjamin, Biritwum, Nana-Kwadwo, and Boakye, Daniel A

Published
2018

22. Partial indoor residual spraying with pirimiphos-methyl as an effective and cost-saving measure for the control of Anopheles gambiae s.l. in northern Ghana

Author

Coleman, Sylvester, Yihdego, Yemane, Sherrard-Smith, Ellie, Thomas, Churcher S., Dengela, Dereje, Oxborough, Richard M., Dadzie, Samuel K., Boakye, Daniel, Gyamfi, Frank, Obiri-Danso, Kwasi, Johns, Ben, Siems, Lilly V., Lucas, Bradford, Tongren, Jon Eric, Zigirumugabe, Sixte, Dery, Dominic, Fornadel, Christen, George, Kristen, Belemvire, Allison, Carlson, Jenny, Irish, Seth R., Armistead, Jennifer S., and Seyoum, Aklilu

Published
2021
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23. Correction: Ivermectin and doxycycline treatments against Onchocerciasis: Adaptations and impact among semi-nomadic population in Massangam Health District, Cameroon

Author

Nditanchou, Rogers, primary, Dixon, Ruth, additional, Chailloux, Alexandre, additional, Atekem, Kareen, additional, Biholong, Benjamin, additional, Wilhelm, Aude, additional, Selby, Richard, additional, Oye, Joseph, additional, Kamgno, Joseph, additional, Boakye, Daniel, additional, Schmidt, Elena, additional, and Senyonjo, Laura, additional

Published
2024
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28. Progress towards elimination of onchocerciasis transmission in Mali: A “pre-stop MDA” survey in 18 transmission zones

Author

Dolo, Housseini, primary, Coulibaly, Michel, additional, Sow, Moussa, additional, Coulibaly, Yaya, additional, Doumbia, Mama, additional, Sangare, Moussa, additional, Sanogo, Abdoul, additional, Dembele, Benoit, additional, Guindo, Boubacar, additional, Coulibaly, Mamadou, additional, Keita, Modibo, additional, Soumaoro, Lamine, additional, Diarra, Dansine, additional, Dicko, Boubacar, additional, Hamill, Louise, additional, Doumbia, Seydou, additional, Sangho, Hamadoun, additional, Sangare, Yacouba, additional, Zhang, Yaobi, additional, Tallant, Jamie, additional, Yaro, Alpha, additional, Mackenzie, Charles, additional, Nutman, Thomas B., additional, and Boakye, Daniel, additional

Published
2023
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29. Detection of Leishmania DNA in Phlebotomine Sand Flies in Tsatee, a Community in the Volta Region, Ghana

Author

Addo, Seth Offei, primary, Amoako, Emmanuel Kwame, additional, Bentil, Ronald Essah, additional, Agbodzi, Bright, additional, Mosore, Mba-tihssommah, additional, Yeboah, Clara, additional, Attram, Naiki, additional, Larbi, John Asiedu, additional, Kwakye-Nuako, Godwin, additional, de Souza, Dziedzom K., additional, Wilson, Michael David, additional, and Boakye, Daniel Adjei, additional

Published
2023
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32. Comparison of standard and modified human landing catching techniques for blackfly collection.

Author

Atekem, Kareen, Nwane, Philippe, Nditanchou, Rogers, Jeyam, Anita, Wilhelm, Aude, Selby, Richard, Hamill, Louise, Schmidt, Elena, Dixon, Ruth, and Boakye, Daniel

Subjects
SIMULIIDAE, MATING grounds, ONCHOCERCIASIS, COLLECTIONS, ECOLOGICAL zones
Abstract

Background Human landing catches (HLCs) are required to collect blackflies for entomological evaluation to verify onchocerciasis elimination. However, there are ethical concerns regarding exposure of vector collectors to infectious blackflies and safer alternative methods are needed. This study evaluated a modified HLC technique where collectors wore coloured trousers (blue, black or blue-black), protecting them from bites during fly collection, and their performance was compared with the standard. Methods The study was conducted in Makouopsap, Cameroon, in the Massangam health district for 4 months. Four collector pairs—one 'standard' (bare-legged) and three modified—were placed 50 m apart along known breeding sites on the Mbam and Nja Rivers. Collections were performed from 07:00 to 17:00 h, 4 d/month. Hourly rates of flies caught were analysed using a negative binomial generalised linear model to explore associations between flies caught and collection techniques and seasons. Results Overall, 17 246 blackflies were caught. There was no significant statistical difference in the number of blackflies and parous flies caught between black trousers and the standard. Thus there is a strong indication that wearing black trousers is a viable non-inferior alternative to the standard HLC. Conclusions Further studies are needed to confirm generalisability in different ecozones and transmission environments and among different blackfly species. [ABSTRACT FROM AUTHOR]

Published
2024
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34. Table S2 from Field Synopsis of Environmental and Genetic Risk Factors of Sporadic Early-Onset Colorectal Cancer and Advanced Adenoma

Author

Zhang, Rongqi, primary, Boakye, Daniel, primary, Yang, Nan, primary, Zhou, Xuan, primary, Zhou, Yajing, primary, Jiang, Fangyuan, primary, Yu, Lili, primary, Wang, Lijuan, primary, Sun, Jing, primary, Yuan, Shuai, primary, Chen, Jie, primary, Hamilton, Ashleigh C., primary, Coleman, Helen G., primary, Larsson, Susanna C., primary, Little, Julian, primary, Dunlop, Malcolm G., primary, Giovannucci, Edward L., primary, Theodoratou, Evropi, primary, and Li, Xue, primary

Published
2023
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35. Data from Field Synopsis of Environmental and Genetic Risk Factors of Sporadic Early-Onset Colorectal Cancer and Advanced Adenoma

Author

Zhang, Rongqi, primary, Boakye, Daniel, primary, Yang, Nan, primary, Zhou, Xuan, primary, Zhou, Yajing, primary, Jiang, Fangyuan, primary, Yu, Lili, primary, Wang, Lijuan, primary, Sun, Jing, primary, Yuan, Shuai, primary, Chen, Jie, primary, Hamilton, Ashleigh C., primary, Coleman, Helen G., primary, Larsson, Susanna C., primary, Little, Julian, primary, Dunlop, Malcolm G., primary, Giovannucci, Edward L., primary, Theodoratou, Evropi, primary, and Li, Xue, primary

Published
2023
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36. Figure S1 from Field Synopsis of Environmental and Genetic Risk Factors of Sporadic Early-Onset Colorectal Cancer and Advanced Adenoma

Author

Zhang, Rongqi, primary, Boakye, Daniel, primary, Yang, Nan, primary, Zhou, Xuan, primary, Zhou, Yajing, primary, Jiang, Fangyuan, primary, Yu, Lili, primary, Wang, Lijuan, primary, Sun, Jing, primary, Yuan, Shuai, primary, Chen, Jie, primary, Hamilton, Ashleigh C., primary, Coleman, Helen G., primary, Larsson, Susanna C., primary, Little, Julian, primary, Dunlop, Malcolm G., primary, Giovannucci, Edward L., primary, Theodoratou, Evropi, primary, and Li, Xue, primary

Published
2023
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37. Supplementary Materials and Methods from Field Synopsis of Environmental and Genetic Risk Factors of Sporadic Early-Onset Colorectal Cancer and Advanced Adenoma

Author

Zhang, Rongqi, primary, Boakye, Daniel, primary, Yang, Nan, primary, Zhou, Xuan, primary, Zhou, Yajing, primary, Jiang, Fangyuan, primary, Yu, Lili, primary, Wang, Lijuan, primary, Sun, Jing, primary, Yuan, Shuai, primary, Chen, Jie, primary, Hamilton, Ashleigh C., primary, Coleman, Helen G., primary, Larsson, Susanna C., primary, Little, Julian, primary, Dunlop, Malcolm G., primary, Giovannucci, Edward L., primary, Theodoratou, Evropi, primary, and Li, Xue, primary

Published
2023
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38. Association between antibiotic use during early life and early‐onset colorectal cancer risk overall and according to polygenic risk and FUT2 genotypes

Author

Jiang, Fangyuan, primary, Boakye, Daniel, additional, Sun, Jing, additional, Wang, Lijuan, additional, Yu, Lili, additional, Zhou, Xuan, additional, Zhao, Jianhui, additional, Bian, Zilong, additional, Song, Peige, additional, He, Yazhou, additional, Zhu, Yingshuang, additional, Chen, Jie, additional, Yuan, Shuai, additional, Song, Mingyang, additional, Larsson, Susanna C., additional, Giovannucci, Edward L, additional, Theodoratou, Evropi, additional, Ding, Kefeng, additional, and Li, Xue, additional

Published
2023
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42. Potential factors influencing lymphatic filariasis transmission in “hotspot” and “control” areas in Ghana: the importance of vectors

Author

Pi-Bansa, Sellase, Osei, Joseph Harold Nyarko, Frempong, Kwadwo Kyeremeh, Elhassan, Elizabeth, Akuoko, Osei Kweku, Agyemang, David, Ahorlu, Collins, Appawu, Maxwell Alexander, Koudou, Benjamin Guibehi, Wilson, Michael David, de Souza, Dziedzom Komi, Dadzie, Samuel Kweku, Utzinger, Jürg, and Boakye, Daniel Adjei

Published
2019
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44. Association between antibiotic use during early life and early-onset colorectal cancer risk overall and according to polygenic risk and FUT2 genotypes

Author

Jiang, Fangyuan, Boakye, Daniel, Sun, Jing, Wang, Lijuan, Yu, Lili, Zhou, Xuan, Zhao, Jianhui, Bian, Zilong, Song, Peige, He, Yazhou, Zhu, Yingshuang, Chen, Jie, Yuan, Shuai, Song, Mingyang, Larsson, Susanna C., Giovannucci, Edward L, Theodoratou, Evropi, Ding, Kefeng, Li, Xue, Jiang, Fangyuan, Boakye, Daniel, Sun, Jing, Wang, Lijuan, Yu, Lili, Zhou, Xuan, Zhao, Jianhui, Bian, Zilong, Song, Peige, He, Yazhou, Zhu, Yingshuang, Chen, Jie, Yuan, Shuai, Song, Mingyang, Larsson, Susanna C., Giovannucci, Edward L, Theodoratou, Evropi, Ding, Kefeng, and Li, Xue

Abstract

Early-onset colorectal cancer (EOCRC) has been increasing worldwide. Potential risk factors may have occurred in childhood or adolescence. We investigated the associations between early-life factors and EOCRC risk, with a particular focus on long-term or recurrent antibiotic use (LRAU) and its interaction with genetic factors. Data on the UK Biobank participants recruited between 2006 and 2010 and followed up to February 2022 were used. We used logistic regression to estimate adjusted odds ratios (ORs) and 95% confidence intervals (95% CIs) of the associations between LRAU during early life and EOCRC risk overall and by polygenic risk score (constructed by 127 CRC-related genetic variants) and Fucosyltransferase 2 (FUT2), a gut microbiota regulatory gene. We also assessed the associations for early-onset colorectal adenomas, as precursor lesion of CRC, to examine the effect of LRAU during early-life and genetic factors on colorectal carcinogenesis. A total of 113 256 participants were included in the analysis, with 165 EOCRC cases and 719 EOCRA cases. LRAU was nominally associated with increased risk of early-onset CRC (OR = 1.48, 95% CI = 1.01-2.17, P = .046) and adenomas (OR = 1.40, 95% CI = 1.17-1.68, P < .001). When stratified by genetic polymorphisms of FUT2, LRAU appeared to confer a comparatively greater risk for early-onset adenomas among participants with rs281377 TT genotype (OR = 1.10, 95% CI = 0.79-1.52, P = .587, for CC genotype; OR = 1.75, 95% CI = 1.16-2.64, P = .008, for TT genotype; Pinteraction = .089). Our study suggested that LRAU during early life is associated with increased risk of early-onset CRC and adenomas, and the association for adenomas is predominant among individuals with rs281377 TT/CT genotype. Further studies investigating how LRAU contributes together with genetic factors to modify EOCRC risk, particularly concerning the microbiome-related pathway underlying colorectal carcinogenesis, are warranted.

Published
2023
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45. Field Synopsis of Environmental and Genetic Risk Factors of Sporadic Early-Onset Colorectal Cancer and Advanced Adenoma

Author

Zhang, Rongqi, Boakye, Daniel, Yang, Nan, Zhou, Xuan, Zhou, Yajing, Jiang, Fangyuan, Yu, Lili, Wang, Lijuan, Sun, Jing, Yuan, Shuai, Chen, Jie, Hamilton, Ashleigh C., Coleman, Helen G., Larsson, Susanna C., Little, Julian, Dunlop, Malcolm G., Giovannucci, Edward L., Theodoratou, Evropi, Li, Xue, Zhang, Rongqi, Boakye, Daniel, Yang, Nan, Zhou, Xuan, Zhou, Yajing, Jiang, Fangyuan, Yu, Lili, Wang, Lijuan, Sun, Jing, Yuan, Shuai, Chen, Jie, Hamilton, Ashleigh C., Coleman, Helen G., Larsson, Susanna C., Little, Julian, Dunlop, Malcolm G., Giovannucci, Edward L., Theodoratou, Evropi, and Li, Xue

Abstract

Background: To systematically appraise and synthesize avail-able epidemiologic evidence on the associations of environmental and genetic factors with the risk of sporadic early-onset colorectal cancer (EOCRC) and early-onset advanced colorectal adenoma (EOCRA). Methods: Multiple databases were comprehensively searched to identify eligible observational studies. Genotype data from UK Biobank were incorporated to examine their associations with EOCRC in a nested case-control design. Meta-analyses of envi-ronmental risk factors were performed, and the strength of evidence was graded based on predefined criteria. Meta-analyses of genetic associations were conducted using the allelic, recessive, and dom-inant models, respectively. Results: A total of 61 studies were included, reporting 120 environmental factors and 62 genetic variants. We found 12 risk factors (current overweight, overweight in adolescence, high waist circumference, smoking, alcohol, sugary beverages intake, seden-tary behavior, red meat intake, family history of colorectal cancer, hypertension, hyperlipidemia, and metabolic syndrome) and three protective factors (vitamin D, folate, and calcium intake) for EOCRC or EOCRA. No significant associations between the exam-ined genetic variants and EOCRC risk were observed. Conclusions: Recent data indicate that the changing patterns of traditional colorectal cancer risk factors may explain the rising incidence of EOCRC. However, research on novel risk factors for EOCRC is limited; therefore, we cannot rule out the possibility of EOCRC having different risk factors than late-onset colorectal cancer (LOCRC). Impact: The potential for the identified risk factors to enhance the identification of at-risk groups for personalized EOCRC screen-ing and prevention and for the prediction of EOCRC risk should be comprehensively addressed by future studies.

Published
2023
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46. Effect of governance on investment: Evidence from Sub-Sahara Africa.

Author

Abdulai, Mohammed Gbanja, Ustarz, Yazidu, and Boakye, Daniel Chris

Subjects
PUBLIC investments, INVESTOR confidence, PROPERTY rights, BOND market, LOANS, RENT seeking, POLITICAL participation, PUBLIC-private sector cooperation
Abstract

In this study, we investigated the impact of institutional quality on private and public investments in sub-Saharan Africa (SSA) using a sample of forty-one (41) countries between 2002-2021 using a system GMM. Using seven proxies of institutional variables, the results showed that all the institutional proxies had a positive and significant effect on private investment and a negative effect on public investment. We argued that higher institutional quality reduced the costs of doing business, increased investor confidence in the economy, and that property rights enforcement and the legal system increased the attractiveness of private investment in the region. Conversely, for public investment, we argued that better institutional quality exposed the inefficiency of the sector as they were mostly used for rent-seeking and perpetrate corruption, and as such reduced public investment. The results were also robust to different measures of institutions and governance indicators. We recommended that SSA governments improve project oversight and accountability, reduce corruption, promote transparency and citizen participation, strengthen anti-corruption measures, and invest in infrastructure through public-private partnerships in order to improve efficiency in the public sector. Also, governments must ensure lower lending rates, improve the efficiency of credit markets, and ensure better institutional indicators in order to increase private investment. [ABSTRACT FROM AUTHOR]

Published
2024
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47. Field Synopsis of Environmental and Genetic Risk Factors of Sporadic Early-Onset Colorectal Cancer and Advanced Adenoma

Author

Zhang, Rongqi, primary, Boakye, Daniel, additional, Yang, Nan, additional, Zhou, Xuan, additional, Zhou, Yajing, additional, Jiang, Fangyuan, additional, Yu, Lili, additional, Wang, Lijuan, additional, Sun, Jing, additional, Yuan, Shuai, additional, Chen, Jie, additional, Hamilton, Ashleigh C., additional, Coleman, Helen G., additional, Larsson, Susanna C., additional, Little, Julian, additional, Dunlop, Malcolm G., additional, Giovannucci, Edward L., additional, Theodoratou, Evropi, additional, and Li, Xue, additional

Published
2023
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49. Acceptability of test and treat with doxycycline against Onchocerciasis in an area of persistent transmission in Massangam Health District, Cameroon

Author

Nditanchou, Rogers, primary, Dixon, Ruth, additional, Atekem, Kareen, additional, Akongo, Serge, additional, Biholong, Benjamin, additional, Ayisi, Franklin, additional, Nwane, Philippe, additional, Wilhelm, Aude, additional, Basnet, Sapana, additional, Selby, Richard, additional, Wanji, Samuel, additional, Bakajika, Didier, additional, Oye, Joseph, additional, Kamgno, Joseph, additional, Boakye, Daniel, additional, Schmidt, Elena, additional, and Senyonjo, Laura, additional

Published
2023
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