پروفیسر عثمان ادہمی
یہ خبر بڑے رنج و غم کے ساتھ سنی جائے گی کہ ۱۵؍ مارچ کو دہلی میں پروفیسر عثمان ادہمی کا انتقال ہوگیا ان کا آبائی وطن بستی تھا مگر انہوں نے علی گڑھ میں اپنا مکان تعمیر کرالیا تھا، وہ مسلم یونیورسٹی میں حیاتیات کے پروفیسر تھے۔ ان کی علمی اور تنظیمی صلاحیتوں کا اس وقت زیادہ اندازہ ہوا جب وہ سید حامد صاحب کی وائس چانسلری کے زمانے میں پراکٹر تھے اور غالباً انہی کی تحریک اور جناب حکیم عبدالمجید صاحب کی خواہش پر ادہمی صاحب یونیورسٹی سے سبکدوش ہو کر ہمدرد اسٹڈی سرکل کے ڈائریکڑ ہوئے، ان کی اور سید صاحب کی مشترکہ جدوجہد سے اس کوچنگ سنٹر سے گزشتہ چھ برسوں میں ستر (۷۰) آئی۔اے۔ایس منتخب ہوئے جو ایک بڑا کارنامہ ہے، وہ مولانا آزاد میموریل اکادمی کے صدر بھی تھے جو ایک زمانے میں ان کی جدوجہد سے سرگرم رہی، ادہمی صاحب ایک شریف انسان اور قوم و ملت کے خاموش اور مخلص خادم تھے، وہ نام و نمود اور صلہ و ستائش سے ہمیشہ بے پرواہ رہے۔ ان کی ذاتی زندگی بھی صاف اور پاکیزہ تھی۔ اﷲ تعالیٰ مغفرت فرمائے، متعلقین کو صبر جمیل دے اور ہمدرد اسٹڈی سرکل اور قوم کو ان کا نعم البدل عطا فرمائے۔ آمین! (ضیاء الدین اصلاحی، اپریل ۱۹۹۷ء)
For the guidance of all human being and for resolving the problems Allah has told in Qur’an. The environmental pollution is a major issue of our life, Allah has also fully guided for this regard too. There is mentioned in The Holy Quran about that. There are seven types of pollution are: Water pollution, Air pollution, Soil pollution, Thermal pollution, Radioactive pollution, Noise pollution, Light pollution. Environmental pollution has existed for centuries but only started to be significant in dub trial resolution. Pollution occurs when the natural environmental cannot destroy an element without creating harm or damage to itself. The elements involved are not produced by nature and the destroying process can vary from a few days to thousands of years. Though the first we should clean our self then our society will be cleaned and will not remain any kind of pollution. In this regard the Holly Quran is also telling us about the purification. There are two types of purification internal external. Internal purification to purity the soul form the effects of sins and act of disobedience though repenting sincerely form all sins and act of disobedience Purification of the heart from the fifth polytheism. External purification by removing of filth is by using pure water of the water for the removal of the for the worshiper's garment body and from the place of prayer. We must thin for this serious issue and have to reform our society from this important issue. In fort, we get rid from those absolutely in the right direction.
Hepatitis C virus (HCV) is a major health problem throughout the world with high morbidity and mortality. HCV has high mutation rate and is classified into six genotypes (GT). The major prevalent genotype in Pakistan is 3a. While inhibitors of the HCV protease are now available to treat patients infected with GT1 HCV, treatment options are limited for other HCV genotypes. The aim of the study was to analyze the effect of different inhibitors / HCV structural genes (Core, E1, E2 & P7) on the activity of HCV polymerase in 5BR assay and to develop a global consensus sequence of HCV NS5B. The 5BR assay was used to screen non-nucleoside inhibitors (NNI) against the GT3a HCV RdRp and determine the EC50 of HCV-796. Binding of hits to recombinant GT3a RdRp was determined using a differential fluorimetry assay. RNA synthesis by the recombinant protein was used to determine the IC50 of HCV-796. A mutation in the 3a RdRp that conferred resistance to inhibition by HCV-796 was identified using the 5BR assay and by RNA synthesis in vitro. Pan genotypic effect of HCV-796 was analyzed by using HCV polymerase from all the six HCV genotypes in 5BR assay. Effect of HCV structural genes on the activity of HCV polymerase was analyzed by using wild type polymerase, ∆21 polymerase and GAA mutant polymerase in 5BR assay. To develop a global consensus sequence of HCV NS5B; 236 HCV NS5B sequences belonging from all over the world were aligned and a representing phylogenetic tree was drawn. xix Inhibitors screening showed that HCV-796 decreased the activity of GT3a RdRp with an EC50 of 90 nM in the 5BR assay. In biochemical assays, HCV-796 had an IC50 of 88 nM for de novo initiation and 229 nM for primer extension. In the differential scanning fluorimetry assay, binding to HCV-796 significantly altered the denaturation profile of the 3a RdRp. A C316Y mutant that conferred resistance to HCV-796 in GT1 RdRp was found to render the 3a RdRp resistant to HCV-796 by more than one log in both the 5BR and the biochemical assays. When the effect of HCV structural genes was analyzed on the activity of HCV polymerase in cell bases assay, HCV core gene showed maximum increase of 10 fold by using wild type polymerase. Consensus sequence analysis showed that the active site residues D220, D225, D318 and D319, which bind the divalent cations, are highly conserved among all the HCV genotypes. The HCV NS5B phylogenetic tree showed the clusters of different genotypes and their evolutionary relationship. Given the high mutation rate of HCV, the residues which are present in the catalytic pocket, sugar selection and template/primer interaction are highly conserved, although we observed, at many places where change in nucleotide sequences did not affect the amino acid sequences of HCV NS5B. The NNI HCV-796, a known inhibitor for GT1 HCV RdRp, could also inhibit the 3a polymerase. HCV-796 should serve as a useful scaffold for further development of effective non-nucleoside inhibitor for GT3a HCV. HCV core gene increased the activity of HCV polymerase in cell based assay. The phylogenetic analysis suggested that different HCV genotypes evolved from genotype 1a.