Found 5 results

Sort by: Author [ Title  (Asc)] Type Year
Filters: First Letter Of Title is A  [Clear All Filters]
[A] B C D E F G H I J K L M N O P Q R S T U V W X Y Z   [Show ALL]
O PROFWASUNNAAGGREY, N PROFWEREFREDRICK. "Assessment of inpatient paediatric care in first referral level hospitals in 13 districts in Kenya. Lancet . 2004 Jun 12; 363 ( 9425 ): 1948-53 . PMID: 15194254 [PubMed - indexed for MEDLINE] English M, Esamai F, Wasunna A, Were F, Ogutu B, Wamae A, Snow .". In: Lancet . 2004 Jun 12; 363 ( 9425 ): 1948-53 . John Benjamins Publishing Company; 2004. Abstract

KEMRI Centre for Geographic Medicine Research, PO Box 230, Kilifi, Kenya.

BACKGROUND: The district hospital is considered essential for delivering basic, cost-effective health care to children in resource poor countries. We aimed to investigate the performance of these facilities in Kenya. METHODS: Government hospitals providing first referral level care were prospectively sampled from 13 Kenyan districts. Workload statistics and data documenting the management and care of admitted children were obtained by specially trained health workers. FINDINGS: Data from 14 hospitals were surveyed with routine statistics showing considerable variation in inpatient paediatric mortality (range 4-15%) and specific case fatality rates (eg, anaemia 3-46%). The value of these routine data is seriously undermined by missing data, apparent avoidance of a diagnosis of HIV/AIDS, and absence of standard definitions. Case management practices are often not in line with national or international guidelines. For malaria, signs defining severity such as the level of consciousness and degree of respiratory distress are often not documented (range per hospital 0-100% and 9-77%, respectively), loading doses of quinine are rarely given (3% of cases) and dose errors are not uncommon. Resource constraints such as a lack of nutritional supplements for malnourished children also restrict the provision of basic, effective care. INTERPRETATION: Even crude performance measures suggest there is a great need to improve care and data quality, and to identify and tackle key health system constraints at the first referral level in Kenya. Appropriate intervention might lead to more effective use of health workers' efforts in such hospitals.

PMID: 15194254 [PubMed - indexed for MEDLINE]

O PROFWASUNNAAGGREY. "Autrup H, Bradley KA, Shamsuddin AK, Wakhisi J, Wasunna A. Detection of putative adduct with fluorescence characteristics identical to 2,3-dihydro-2-(7'-guanyl)-3-hydroxyaflatoxin B1 in human urine collected in Murang'a district, Kenya. Carcinogenesis. 19.". In: Carcinogenesis. 1983 Sep;4(9):1193-5. John Benjamins Publishing Company; 1983. Abstract

Food samples collected in Murang'a district, Kenya are known to be contaminated with a mycotoxin, aflatoxin B1 (AFB), and a positive correlation exists between the dietary intake of AFB and the incidence of liver cancer. When urine samples collected in this district were analyzed for the presence of 2,3-dihydro-2-(7'-guanyl)-3-hydroxyaflatoxin B1 (AFB-GuaI) by h.p.l.c., 6 of 81 samples had a detectable level of a compound whose fluorescence spectrum was identical to chemically synthesized AFB-GuaI as confirmed by photoncounting fluorescence spectrophotometry. These results are an indication of interaction between the ultimate carcinogenic form of AFB and cellular nucleic acids in vivo and further support the hypothesis that AFB may play an important role in the etiology of human liver cancer.

O PROFWASUNNAAGGREY. "Autrup H, Seremet T, Wakhisi J, Wasunna A. Aflatoxin exposure measured by urinary excretion of aflatoxin B1-guanine adduct and hepatitis B virus infection in areas with different liver cancer incidence in Kenya. Cancer Res. 1987 Jul 1;47(13):3430-3.". In: Cancer Res. 1987 Jul 1;47(13):3430-3. John Benjamins Publishing Company; 1987. Abstract
Two major etiological agents, hepatitis B virus and aflatoxin B1, are considered to be involved in the induction of liver cancer in Africa. In order to elucidate any synergistic effect of these two agents we conducted a study in various parts of Kenya with different liver cancer incidence in order to establish the rate of exposure to aflatoxin and the prevalence of hepatitis infections. Of all tested individuals 12.6% were positive for aflatoxin exposure as indicated by the urinary excretion of aflatoxin B1-guanine. Assuming no annual and seasonal variation, a regional variation in the exposure was observed. The highest rate of aflatoxin exposure was found in the Western Highlands and Central Province. The incidence of hepatitis infection nationwide as measured by the presence of the surface antigens was 10.6%, but a wide regional variation was observed. A multiplicative and additive regression analysis to investigate if hepatitis and aflatoxin exposure had a synergetic effect in the induction of liver cancer was negative. However, a moderate degree of correlation between the exposure to aflatoxin and liver cancer was observed when the study was limited to certain ethnic groups. The study gives additional support to the hypothesis that aflatoxin is a human liver carcinogen.
O PROFWASUNNAAGGREY. "Autrup H, Wakhisi J, Vahakangas K, Wasunna A, Harris CC. Detection of 8,9-dihydro-(7'-guanyl)-9-hydroxyaflatoxin B1 in human urine. Environ Health Perspect. 1985 Oct;62:105-8.". In: Environ Health Perspect. 1985 Oct;62:105-8. John Benjamins Publishing Company; 1985. Abstract

A possible role of aflatoxin B1 (AFB) in the etiology of human liver cancer has been suggested from several epidemiological studies. This has been based upon the association between consumption of AFB-contaminated food and the liver cancer incidence in different parts of the world. To further establish the role of AFB as a major factor, we initiated a pilot study in three different districts of Kenya to determine the number of individuals exposed to significant amounts of AFB as measured by the urinary excretion of 8,9-dihydro-8-(7-guanyl)-9-hydroxyaflatoxin B1 (AFB-Gua), an adduct formed between the ultimate carcinogenic form of AFB and nucleic acids. This product has previously been detected in urine from rats treated with AFB. Urine collected at the outpatient clinics at the district hospitals were concentrated on C18 Sep-Pak columns and analyzed by high-pressure liquid chromatography under two different chromatographic conditions. The chemical identity of the samples showing a positive response in both chromatographic systems was verified by synchronous scanning fluorescence spectrophotometry. The highest number of individuals with detectable urinary AFB-Gua lived in either Murang'a district or the neighboring Meru and Embu districts. In Murang'a district a rate of 12% was observed in the January-March period, while only 1 of 32 patients (3%) had a detectable exposure in July-August.(ABSTRACT TRUNCATED AT 250 WORDS)

UoN Websites Search