4,003 research outputs found

    Age-related Changes in the Cellular Level of Amylase and Protein Synthesis in the Rat Parotid Gland

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    Age-related changes in the cellular content of secretory proteins and protein synthesis were studied in parotid glands of rats of various ages. The secretory protein content (determined by measuring the level of α-amylase activity) and the synthesis of proteins (assayed by the rate of incorporation of 3H-leucine into acid-insoluble proteins) decline with increasing age. Morphological and radioautographic studies of the gland indicate that the decline in protein synthesis is due to the reduction in the ability of secretory cells to synthesize proteins.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/67245/2/10.1177_00220345810600031401.pd

    Increasing late diagnosis in HIV infection in South Korea: 2000-2007

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    <p>Abstract</p> <p>Background</p> <p>The number of Koreans diagnosed with human immunodeficiency virus (HIV) infections is increasing annually; however, CD4+ T-cell counts at diagnosis have decreased. The purpose of the present study was to identify clinical and epidemiologic associations with low CD4+ T-cell counts at the time of HIV diagnosis in a Korean population.</p> <p>Methods</p> <p>Data from 2,299 HIV-infected individuals with initial CD4+ T-cell counts measured within 6 months of HIV diagnosis and reason for HIV testing were recorded and measured from 2000 to 2007. Data were selected from the database of the Korea Centers for Disease Control and Prevention. Late diagnosis was defined by CD4+ T-cell counts <200 cells/mm<sup>3</sup>. Reasons for HIV testing were analyzed using logistic regression including epidemiologic variables.</p> <p>Results</p> <p>A total of 858 individuals (37.3%) were included in the late diagnosis group. Individuals with a late diagnosis were older, exposed through heterosexual contact, and demonstrated clinical manifestations of acquired immunodeficiency syndrome (AIDS). The primary reason for HIV testing was a routine health check-up (41%) followed by clinical manifestations (31%) of AIDS. The proportion of individuals with a late diagnosis was higher in individuals tested due to clinical symptoms in public health centers (adjusted odds ratio [AOR], 17.3; 95% CI, 1.7-175) and hospitals (AOR, 4.9; 95% CI, 3.4-7.2) compared to general health check-up. Late diagnosis annually increased in individuals diagnosed by voluntary testing both in public health centers (PHCs, P = 0.017) and in hospitals (P = 0.063). Routine testing due to risky behaviors resulted in earlier detection than testing secondary to health check-ups, although this difference was not statistically significant (AOR, 0.7; P = 0.187). Individuals identified as part of hospital health check-ups more frequently had a late diagnosis (P = 0.001)</p> <p>Conclusions</p> <p>HIV infection was primarily detected by voluntary testing with identification in PHCs and by testing due to clinical symptoms in hospitals. However, early detection was not influenced by either voluntary testing or general health check-up. It is important to encourage voluntary testing for early detection to decrease the prevalence of HIV infection and AIDS progression.</p

    Prevalence of human papillomavirus infection and genotype distribution among high-risk Korean women for prospecting the strategy of vaccine development

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    We investigated the prevalence of human papillomavirus (HPV) infection and the distribution of high-risk HPV genotypes among 2,308 high-risk Korean women to predict how much the current prophylactic HPV vaccines might affect the prevention of cervical cancer in Korea. HPV DNA was detected in 939 women (40.7%) but only one-third of women were positive for HPV-16 and/or HPV-18, the genotypes used for developing the HPV vaccines. Thus, the development of area-specific HPV vaccines based on dominant HPV genotypes in our country is needed for preventing HPV infection and the development of premalignant lesions in the cervix of Korean women

    Coupling characteristics of surface modes in truncated two-dimensional photonic crystals

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    On 1 February, 1994 the Republic of Austria concluded the Accession Treaty and on 1 January, 1995 became a full member of the European Union. Membership obliged Austrians to ‘provide’ the Community with appropriate personnel to take up different posts in various EU authorities, as well as in the European Parliament. The most important issue was to alter particular statutory regulations and the Austrian Constitution to adjust to the new situation.The paper aims at presenting the Austrian solutions in this matter in the context of European Union law, with particular emphasis on regulations which are uncommon or specific to the Republic of Austria. The matter of interest is the constitutional practice of EU member states and the reader’s perspective is taken into account. The latter approach not only evaluates the Austrian solutions in the context of the electoral law to the European Parliament contained in the Election Code, but could also suggest some ideas in regard to prospective amendments. The authors would, in particular, like to pay attention to two issues: the lowering of the voting age, and the single constituency electoral system. The Austrian solutions might be valuable to refer to in the countries where a system of correspondence voting is just being introduced. These resolutions are particularly interesting taking into consideration prospective, possible amendments to the electoral laws of the EU member states.Republika Austrii, 1 lutego 1994 r. podpisała traktat akcesyjny i z dniem 1 stycznia 1995 r. stała się pełnoprawnym członkiem Unii Europejskiej. Członkostwo zobowiązało Austriaków do “dostarczenia” Wspólnocie odpowiednich osób do objęcia różnych stanowisk w różnych unijnych organach. Nie inaczej było także w przypadku Parlamentu Europejskiego. Ważnym aspektem stało się dostosowanie poszczególnych norm ustawowych i własnej konstytucji do nowych rozwiązań. Celem niniejszego opracowania jest właśnie przedstawianie austriackich rozwiązań w tym temacie na tle rozwiązań europejskich, ze szczególnym uwzględnieniem unormowań rzadko spotykanych lub wręcz odrębności sytemu Republiki Austrii. Rzecz wydaje się być interesująca zarówno z punktu widzenia praktyki ustrojowej państw członkowskich Unii Europejskiej, jak i z punktu widzenia czytelnika. To drugie podejście pozwoli na ocenę austriackich rozwiązań na tle niedawno wprowadzonej ordynacji wyborczej do PE zawartej w Kodeksie Wyborczym, ale również może podsunąć pewne pomysły, co do przyszłych nowelizacji. Autorzy zwrócili szczególną uwagę na dwa rozwiązania: obniżenie cenzusu wieku czynnego prawa wyborczego oraz jednookręgowy system wyborczy. Austriackie doświadczenia mogą być również pomocne państwom, które wprowadzają możliwość głosowania korespondencyjnego. Są to propozycje szczególnie interesujące z punktu widzenia przyszłych, możliwych nowelizacji systemów wyborczych państw członkowskich
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