Use of Prosopis juliflora in Fiberboards – A Review

Prosopis juliflora commonly known as “Seemai Karuvelam” in Tamil Nadu is native to Western Africa and was introduced in Tamil Nadu in 1960s as fuel wood in regions of drought. This tree is now considered a “living threat” to the environment as it sucks up all the water around it. The extensive invasion of the species has led to drought in many regions of Tamil Nadu and the state is now encouraging complete eradication of this species from Tamil Nadu. This paper reviews feasibility studies on the use of Prosopis juliflora in fiber boards along with wood and cardboard waste so that the invasive species can be uprooted completely and put into use in wood works.To solve the problem related to disposal of wood waste, cardboard waste and Prosopis juliflora the research work identifies the manufacture of medium density fiberboards using shredded Prosopis juliflora, wood waste and cardboard waste.

Novel Long Noncoding RNA miR205HG Functions as an Esophageal Tumor-Suppressive Hedgehog Inhibitor

Barrett’s esophagus (BE) is a precursor to esophageal adenocarcinoma (EAC). Recently, long noncoding RNAs (lncRNAs) have been identified as key regulators of biological pathways. However, involvement of lncRNAs in the development of BE and EAC has not been well-studied. The aims of the current study were: (1) to study involvement of the lncRNA, miR205HG, in the development of BE and EAC; (2) to clarify the role of miR205HG in in vitro and in vivo experiments; and (3) to investigate the mechanism of miR205HG involving the Hedgehog (Hh) signaling pathway. These experiments revealed that miR205HG was downregulated in EAC vs. normal esophageal epithelia (NE) as well as in EAC cell lines, and its forced overexpression inhibited EAC cell proliferation and cell cycle progression in vitro. Similarly, overexpression of miR205HG inhibited xenograft tumor growth in mice In vivo. Finally, we show that one mechanism of action of miR205HG involves the Hh signaling pathway: miR205HG and Hh expression levels were inversely correlated in both EAC (r = −0.73) and BE (r = −0.83) tissues, and in vitro studies revealed details of Hh signaling inhibition induced by miR205HG. In conclusion, these findings establish that lncRNA miR205HG functions as a tumor suppressor in the development of BE and EAC, at least in part through its effect on the Hh signaling pathway