322,965 research outputs found

    Androgens and Erythropoiesis: A Review.

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    Association between androgens and erythropoiesis has been known for more than seven decades. Androgens stimulate hematopoietic system by various mechanisms. These include stimulation of erythropoietin release, increasing bone marrow activity and iron incorporation into the red cells. Before the discovery of recombinant erythropoietin (rhEpo), androgens were used in the treatment of anemia associated with renal disease, bone marrow suppression, and hypopituitarism. Anabolism is an additional advantage of androgen therapy. Furthermore, in light of recent reports regarding adverse effects of rhEpo, the role of androgen therapy in various types of anemias should be readdressed. Polycythemia remains a known side effect of androgen therapy. In this review, we will briefly discuss the initial animal and human studies which demonstrated the role of androgens in the treatment of anemia, their mechanism of action, a detailed account of the efficacy of androgens in the treatment of various anemias, the erythropoietic side effects of androgens and finally, the relationship between hematocrit levels and cardiovascular disease

    Endocrine complications of androgen-deprivation therapy in men with prostate cancer.

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    Prostate cancer is one of the most common cancers in men. Androgen-deprivation therapy (ADT) is often employed in the treatment of recurrent and metastatic prostate cancer. Although its use as an adjuvant therapy has resulted in improved survival in a subset of patients, ADT also results in a multitude of endocrine complications. These complications affect quality of life and sense of well-being in these men. Some of the endocrine complications of ADT such as osteoporosis, sexual dysfunction, hot flashes, gynecomastia, and adverse body composition are well-known. Recently, insulin resistance, hyperglycemia, and metabolic syndrome have emerged as metabolic complications of castration and may be responsible for increased cardiovascular mortality in this population. In this article, we provide a detailed review of the endocrine complications of ADT, touching upon management strategies where applicable

    Circulating inflammatory cytokine expression in men with prostate cancer undergoing androgen deprivation therapy

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    Prostate cancer (PCa) is one of the most common cancers in men. Androgen deprivation therapy (ADT) is employed in the treatment of patients with metastatic or recurrent PCa, resulting in castrate levels of testosterone. Recent studies have shown that male hypogonadism is associated with increased levels of proinflammatory and diminished concentrations of anti-inflammatory cytokines, which normalize upon testosterone treatment. Furthermore, an inflammatory state is associated with osteoporosis, sarcopenia and metabolic abnormalities. We examined 3 groups of men: 1) 20 men with PCa undergoing ADT for at least 12 months prior to the onset of the study (ADT group); 2) 18 age-matched men with non-metastatic PCa who had undergone local surgery and/or radiotherapy and had not yet received ADT and were eugonadal (non-ADT group); and 3) 20 age-matched healthy eugonadal men (control group). None of the subjects were suffering from any acute or chronic inflammatory conditions. Mean age was similar in the 3 groups (P 5 .41). Men in the ADT and non-ADT groups had higher BMI compared to the control group (P 5 .0005 and P 5 .01, respectively). Men in the ADT group had significantly lower mean serum total (P , .0001) and free (P , .0001) testosterone and estradiol (P , .0001) levels compared to the other 2 groups. No significant differences in serum levels of pro-inflammatory or antiinflammatory cytokines were observed between the 3 groups. These data suggest that men with PCa undergoing long-term ADT do not have elevated levels of pro-inflammatory cytokines compared to age and disease matched controls. Prospective studies are needed to evaluate for any acute changes in these inflammatory markers that might occur after the initiation of ADT

    Weight gain on androgen deprivation therapy: which patients are at highest risk?

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    Abstract not availableDaniel M. Seible, Xiangmei Gu, Andrew S. Hyatt, Clair J. Beard, Toni K. Choueiri, Jason A.Efstathiou, David T.Miyamoto, TimurMitin, Neil E.Martin, Christopher J.Sweeney, Quoc-Dien Trinh, Joshua A. Beckman, Shehzad Basaria, and Paul L. Nguye

    About the issue of private property relations and the genesis of entrepreneurship (კერძოსაკუთრებრივი ურთიერთობებისა და მეწარმეობის გენეზისის საკითხისათვის)

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    • Basaria V., Basaria R. (2017). „ekonomikis printsipebi“. sakartvelos akademiuri gamomtsemloba. [“Principles of Economics”. Georgian Academic Publishing House, Tbilisi pp.362).] In Georgian. • ekonomikuri leksikoni (2011). propesor a. silagadzis redaktorobit. tsu-is gamomtsemloba, tbilisi. [Economic Dictionary. (2011). Under the leadership of Prof. A. Silagadze. TSU Publishing House, Tbilisi.] In Georgian. • tsagolovi g. (2016). „meshvide pormatsia“. interviu „ekonomika da biznesi“ N1, [Tsagolov G. (2016). “The Seventh Formation.” Interview. “Economy and Business” N1.pp.151-158.] In Georgian. • Biznes. Tolkovyy slovar. (1998) Angl. - russk. - M .: INFRA. [Business. Explanatory dictionary. English - Russian - M .: INFRA pp. 760.] In Russian. • Macconnell, Campbell R., Bru, Stanley L. (1992). Economics - Principles, Problems and Politics in 2 vol. V II. – “Republic” pp.400. • Macmillan (1997). Glossariy sovremennykh ekonomicheskikh teoriy. [Dictionary Modern Economic Theory. - M .: INFRA – M, pp.608.] In Russian. • Tabakov S. (1997). Evolyutsiya otnosheniy sobstvennosti. «Ekonomist» №2. [ Evolution of Property Relations. M. “The Economist” N2.] In Russian.An important role in ensuring the well-being of the population is how the society has mastered the defining (basic) reasons for its economic activities - its own relations and the motivation of the activities caused by them - and how it uses them to achieve the desired result. The coexistence and ratio of two forms of property, private property and public property, has historically always conditioned the essence of the socio-economic order, the result of economic activity. At the same time, private property, the substance that determines motivation, has always been dominant. Therefore, understanding the motivation of private owners, the correct theoretical assessment of the pros and cons of this motivation and the impact on the well-being of their society and its practical application should become one of the main means of developing highyield production in our country. In our reality, the solution to this problem is complicated by the fact that private property was restored in the country not through the acquisition of wealth, but through the privatization of public property by individuals using various illegal, criminal methods of ownership of the entire population. Added to this was the seizure of wealth by private owners by the criminal “elite” imprisoned in state structures in 2002-2012. It is clear that such a nature of the process would not have contributed to the stimulation of the motivation of private property relations, weakening its downside. This indicates that the Georgian government must grasp the importance and severity of the problem, consistently and simultaneously pursue a comprehensive policy of maximizing the pros and cons of the relationship between private owners

    Diffusive author(s), cohesive author: Analysis of S/N (1994)

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    This study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Welcoming low testosterone as a cardiovascular risk factor.

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    Male hypogonadism now has a new spectrum of complications. They are mainly cardiometabolic in nature. Low serum testosterone levels are a risk factor for diabetes, metabolic syndrome, inflammation and dyslipidemia. These metabolic and inflammatory complications are not without consequences. Recent studies have shown low serum testosterone levels to be an independent risk factor of cardiovascular and all-cause mortality. It is time to welcome low serum testosterone levels as a cardiovascular risk factor
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