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The CTLA-4 gene region of chromosome 2q33 is linked to, and associated with, type 1 diabetes. Belgian Diabetes Registry 总被引:8,自引:1,他引:8
Nistico L; Buzzetti R; Pritchard LE; Van der Auwera B; Giovannini C; Bosi E; Larrad MT; Rios MS; Chow CC; Cockram CS; Jacobs K; Mijovic C; Bain SC; Barnett AH; Vandewalle CL; Schuit F; Gorus FK; Tosi R; Pozzilli P; Todd JA 《Human molecular genetics》1996,5(7):1075-1080
Susceptibility to autoimmune insulin-dependent (type 1) diabetes mellitus
is determined by a combination of environmental and genetic factors, which
include variation in MHC genes on chromosome 6p21 (IDDM1) and the insulin
gene on chromosome 11p15 (IDDM2). However, linkage to IDDM1 and IDDM2
cannot explain the clustering of type 1 diabetes in families, and a role
for other genes is inferred. In the present report we describe linkage and
association of type 1 diabetes to the CTLA-4 gene (cytotoxic T lymphocyte
associated-4) on chromosome 2q33 (designated IDDM12). CTLA-4 is a strong
candidate gene for T cell- mediated autoimmune disease because it encodes a
T cell receptor that mediates T cell apoptosis and is a vital negative
regulator of T cell activation. In addition, we provide supporting evidence
that CTLA-4 is associated with susceptibility to Graves' disease, another
organ- specific autoimmune disease.
相似文献
3.
Habib Ndema Steyn Petrus S. Boydell Victoria Cordero Joanna Paula Nguyen My Huong Thwin Soe Soe Nai Dela Shamba Donat Kiarie James 《Health services & outcomes research methodology》2021,21(2):188-205
Health Services and Outcomes Research Methodology - An interrupted time series with a parallel control group (ITS-CG) design is a powerful quasi-experimental design commonly used to evaluate the... 相似文献
4.
Juvenile rhesus monkeys have lower type 2 cytokine responses than adults after primary infection with Schistosoma mansoni 总被引:3,自引:0,他引:3
Fallon PG Gibbons J Vervenne RA Richardson EJ Fulford AJ Kiarie S Sturrock RF Coulson PS Deelder AM Langermans JA Thomas AW Dunne DW 《The Journal of infectious diseases》2003,187(6):939-945
Adults and children have differences in their susceptibility to schistosomiasis. The relative influences of age-dependent innate resistance and acquired immunity in the differences between susceptibility to schistosomiasis are difficult to assess in humans. Therefore, we exposed juvenile and adult female rhesus monkeys to primary infection with Schistosoma mansoni. In contrast to the adult animals, the juvenile rhesus monkeys had low levels of interleukin (IL)-4 and IL-5 production by peripheral blood mononuclear cells after schistosome infection, as well as lower levels of parasite-antigen-specific antibody (IgG, IgM, and IgA) responses, and produced limited antigen-specific or total IgE. Juvenile animals had statistically nonsignificant increased worm burdens and tissue or fecal egg counts, compared with that of adults, whereas circulating schistosome antigens were significantly higher in infected juvenile monkeys. These results suggest that juvenile rhesus monkeys have reduced type 2 cytokine responses after primary schistosome infections and perhaps are more susceptible to parasite infection. 相似文献
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Aliza?Monroe-WiseEmail author Minnie?Kibore James?Kiarie Ruth?Nduati Joseph?Mburu Frederick?Thurston?Drake William?Bremner King?Holmes Carey?Farquhar 《BMC medical education》2014,14(1):1043
Background
Despite evidence that international clinical electives can be educationally and professionally beneficial to both visiting and in-country trainees, these opportunities remain challenging for American residents to participate in abroad. Additionally, even when logistically possible, they are often poorly structured. The Universities of Washington (UW) and Nairobi (UoN) have enjoyed a long-standing research collaboration, which recently expanded into the UoN Medical Education Partnership Initiative (MEPI). Based on MEPI in Kenya, the Clinical Education Partnership Initiative (CEPI) is a new educational exchange program between UoN and UW. CEPI allows UW residents to partner with Kenyan trainees in clinical care and teaching activities at Naivasha District Hospital (NDH), one of UoN’s MEPI training sites in Kenya.Methods
UW and UoN faculty collaborated to create a curriculum and structure for the program. A Chief Resident from the UW Department of Medicine coordinated the program at NDH. From August 2012 through April 2014, 32 UW participants from 5 medical specialties spent between 4 and 12 weeks working in NDH. In addition to clinical duties, all took part in formal and informal educational activities. Before and after their rotations, UW residents completed surveys evaluating clinical competencies and cross-cultural educational and research skills. Kenyan trainees also completed surveys after working with UW residents for three months.Results
UW trainees reported a significant increase in exposure to various tropical and other diseases, an increased sense of self-reliance, particularly in a resource-limited setting, and an improved understanding of how social and cultural factors can affect health. Kenyan trainees reported both an increase in clinical skills and confidence, and an appreciation for learning a different approach to patient care and professionalism.Conclusions
After participating in CEPI, both Kenyan and US trainees noted improvement in their clinical knowledge and skills and a broader understanding of what it means to be clinicians. Through structured partnerships between institutions, educational exchange that benefits both parties is possible.9.
Kiarie JN Richardson BA Mbori-Ngacha D Nduati RW John-Stewart GC 《Journal of acquired immune deficiency syndromes (1999)》2004,35(1):75-81
OBJECTIVE: To determine feeding practices and nutritional status of infants born to HIV-1-infected women. METHODS: Feeding plans and practices were evaluated by questionnaires and focus group discussions. Infants were weighed at 1 and 6 weeks and tested for HIV-1 at 6 weeks. RESULTS: Of 128 women seen after delivery, 111 completed the study. Mothers who planned to breast feed were more likely to feed their infants as planned (86% vs. 55%; P < 0.001). Women opted to breast feed due to financial constraints, partner influence, and fear of losing confidentiality. Women who reported that their partners were willing to have HIV-1 testing were less likely to be breast feeding at 6 weeks (odds ratio [OR] = 0.3, 95% confidence interval [CI]: 0.1-0.8; P = 0.01). At 6 weeks, more infants were mixed fed (31% vs. 21%; P = 0.05) than at 1 week. Lower infant weight at 6 weeks was associated with not breast feeding (P = 0.001), HIV-1 infection (P = 0.05), birth weight <3000 g (P = 0.01), maternal employment (P = 0.02), and paying <$12.5 per month in house rent (among infants not breast fed; P = 0.05). CONCLUSIONS: Replacement feeding was difficult, particularly without partner support in HIV-1 testing. Mixed feeding was common and increased by 6 weeks. Mothers of low socioeconomic status who opt not to breast feed require support to avoid nutritional compromise of infants. 相似文献
10.
Successful treatment of oesophageal candidiasis by micafungin: a novel systemic antifungal agent 总被引:5,自引:0,他引:5
Pettengell K Mynhardt J Kluyts T Lau W Facklam D Buell D;FK South African Study Group 《Alimentary pharmacology & therapeutics》2004,20(4):475-481
AIM: To determine the minimum effective dose and safety of micafungin in the treatment of HIV-related oesophageal candidiasis. METHOD: A total of 120 patients were enrolled in this open label study of the effects of daily 1 h infusions of micafungin on endoscopically proven fungal oesophagitis. Patients were randomly assigned to receive 12.5, 25, 50, 75 and 100 mg of micafungin daily. Response was evaluated clinically and endoscopically. RESULTS: The protocol defined minimum effective dose of micafungin was 12.5 mg. The percentage of patients experiencing clearing of physical signs and symptoms showed a dose-response relationship and reached 94.7% in the 100 mg dose group. All patients in the 50, 75 and 100 mg dose groups achieved an endoscopically verified improvement in oesophagitis. Adverse effects of micafungin were generally mild and not dose-related. No serious renal, hepatic or drug-related infusion reactions were encountered. CONCLUSION: Micafungin was found to be effective, well-tolerated and safe. The minimum effective dose was found to be 12.5 mg and a significant linear trend in the successful treatment of oesophageal candidiasis was observed across the doses used with 75 and 100 mg dose levels achieving high rates of clinical and endoscopic cure. 相似文献