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Lee, Hyun-Wook,Verlander, Jill W,Handlogten, Mary E,Han, Ki-Hwan,Cooke, Paul S,Weiner, I David BioScientifica Ltd 2013 Reproduction Vol.146 No.3
<P>The rhesus glycoproteins, Rh B glycoprotein (RHBG) and Rh C glycoprotein (RHCG), are recently identified ammonia transporters. Rhcg expression is necessary for normal male fertility, but its specific cellular expression is unknown, and Rhbg has not been reported to be expressed in the male reproductive tract. This study sought to determine the specific cellular expression of Rhcg, to determine whether Rhbg is expressed in the male reproductive tract, and, if so, to determine which cells express Rhbg using real-time RT-PCR, immunoblot analysis, and immunohistochemistry. Both Rhbg and Rhcg were expressed throughout the male reproductive tract. In the testis, high levels of Rhbg were expressed in Leydig cells, and Rhcg was expressed in spermatids during the later stages of their maturation (steps 13–16) in stages I–VIII of the seminiferous epithelium cycle. In the epididymis, basolateral Rhbg was present in narrow cells in the initial segment, in principal cells in the upper corpus, and in clear cells throughout the epididymis. Apical Rhcg immunolabel was present in principal cells in the caput and upper corpus epididymidis and in clear cells in the middle and lower corpus and cauda epididymidis. In the vas deferens, apical Rhcg immunolabel and basolateral Rhbg immunolabel were present in some principal cells and colocalized with H<SUP>+</SUP>-ATPase immunolabel. We conclude that both Rhbg and Rhcg are highly expressed in specific cells in the male reproductive tract where they can contribute to multiple components of male fertility.</P>
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Chinese Enterprises’ Investment in Infrastructure Construction in Cambodia
( Fang Hu ),( Xiekui Zhang ),( Mingming Hu ),( David Lee Cook ) 경남대학교 극동문제연구소 2019 ASIAN PERSPECTIVE Vol.43 No.1
One of the important means of promoting connectivity and cooperation between China and Cambodia is Chinese enterprises’ investment in Cambodian infrastructure construction. The Belt and Road Initiative proposed by China brings both opportunities and challenges for Cambodia’s economic development. Through an analysis of detailed case studies, in this article we review the background on Chinese infrastructure investment in Cambodia and identify factors in the approach to investment by Chinese enterprises in the Cambodian context that appear to underlie these challenges and suggest opportunities for improvements.
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