báo cáo khoa học: " High HCV seroprevalence and HIV drug use risk behaviors among injection drug users in Pakistan" doc

... purposes) Harm Reduction Journal Open Access Research High HCV seroprevalence and HIV drug use risk behaviors among injection drug users in Pakistan Irene Kuo* 1 , Salman ul-Hasan 2 , Noya Galai 3 , ... bordering Afghanistan. However, in 2003, HIV/ AIDS officials in Sindh reported an outbreak of HIV infection among injection drug users (IDUs) in a...

Ngày tải lên: 11/08/2014, 20:20

... of l-cysteine involves l-serine and inorganic sulfur com- pounds [1–5]. In higher animals, however, l-cysteine is derived from l-methionine [1]. The bacterial path- way starts with a transferase that uses ... Structural insights into catalysis and inhibition of O-acetylserine sulfhydrylase from Mycobacterium tuber- culosis: crystal structures of the enzyme-a-aminoacrylate intermediate...

Ngày tải lên: 07/03/2014, 05:20

... following an initial insult. The study of the interaction between hypoxia and inflammation as mechanisms of injury occurring in healthy individuals in a hypoxic environment has the potential to increase ... a higher arterial oxygen saturation at birth and during the first 4 months of life [43], and an increased uterine artery blood flow [44] leading to a reduction in the incidence...

Ngày tải lên: 13/08/2014, 03:20

... G-protein signaling in yeast has been accumulated and used to study cellular processes, including protein interactions. In this minireview series highlighting the methodolo- gies for elucidating ... pro- tein X–Gc fusion protein and integral membrane protein Y in its native form were coexpressed in a ste18D strain. The interaction between protein X–Gc and protein Y inhibits pher...

Ngày tải lên: 06/03/2014, 11:20

... cystein, methionine and serine (Fig. 2). Mutants containing asparagine, aspartic acid, glycine, lysine or valine were nonfunctional (Fig. 2). Clones expressing eEF2 in which the adjacent threonine ... bind to ribosomes in cells also expressing wild-type eEF2 from one of the remaining eEF2 coding genes. Because binding of eEF2 to the ribosome is dependent on the preforma- tion of a guano...

Ngày tải lên: 07/03/2014, 05:20

... above, and create N copies, where N is the number of unique dialogue acts labels in the training set. Each utterance-label pair in the original training set is now present in all N training sets. ... containing only a single dia- logue act. In fact, even though more than 70% of the utterances in the dataset contain only a single di- alogue act, our approach for segmenting and id...

Ngày tải lên: 07/03/2014, 22:20

... of P450c17 in the formation of this metabolite. Formation of androstadienol by human and porcine P450c17, with and without cyt b 5 Using porcine and human P450c17 expressed in HEK- 293 cells in culture, ... transfection assays with increasing amounts of DNA fragments encoding cyt b 5 and monitored the formation of androstadienol and DHEA. As shown in Fig. 5 the stimulation o...

Ngày tải lên: 08/03/2014, 08:20

... mammalian glycoproteins inclu- ding seminal plasma glycodelin [16], thyrotropin [17] and tissue factor pathway inhibitor [18], but are also expressed by various pathogens, including the human parasite ... structural information inclu- ding the HexNAc chain lengths (exemplified in Fig. 6). In the case of the protonated species, the length of the HexNAc chain was clearly indicated by the i...

Ngày tải lên: 16/03/2014, 14:20

... in a Speed-Vac centrifuge. Prior to its use in antimicrobial assays, p rotein concentration of apolipoprotein samples was determined by the b icinconinic acid method [17] and its purity and integrity ... efore they were used. Animals were anesthetized in a b ath containing 50 mgÆL )1 of benzocaine and blood samples were collected from the caudal vein in heparinized tubes. The...

Ngày tải lên: 16/03/2014, 18:20

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Ngày tải lên: 07/08/2014, 18:21