Search or add a thesis

Advanced Search (Beta)
Home > Synthesis and Characterization of Potentially Bioactive Nucleosides Bearing Different Heterocyclic Moieties

Synthesis and Characterization of Potentially Bioactive Nucleosides Bearing Different Heterocyclic Moieties

Thesis Info

Access Option

External Link

Author

Humaira Akhtar

Program

PhD

Institute

Quaid-I-Azam University

City

Islamabad

Province

Islamabad.

Country

Pakistan

Thesis Completing Year

2006

Thesis Completion Status

Completed

Subject

Chemistry

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/5380/1/2277.pdf

Added

2021-02-17 19:49:13

Modified

2023-01-07 19:01:46

ARI ID

1676727463113

Similar


Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

والدہ، ڈاکٹر جوہر قاضی

ڈاکٹر جوہر قاضی والدہ
تعزیت
رُکن مجلسِ ادارت اعزازی ماہنامہ برہان ڈاکٹر جوہر قاضی کی والدہ محترمہ ۵؍ جولائی ۱۹۹۷ء کو شنبہ کی صبح مختصر علالت کے بعد دہلی میں اپنی رہائش گاہ پر انتقال کرگئیں۔انا ﷲ وانا الیہ راجعون۔
مرحومہ کی عمر تقریباً پچھترسال تھی۔ وہ ایک دین دار خاتون تھیں۔ان کی وفات بلاشبہ ڈاکٹر جوہر قاضی،اہل خاندان اوران کے رفیق سفر جناب حکیم قاضی محمدیٰسین عالم صاحب مدیر اعلیٰ ماہنامہ ’راحت وصحت‘ کے لیے ایک عظیم صدمہ ہے۔ میں اپنی طرف سے اور کارکنانِ ادارہ کی طرف سے دعا کرتا ہوں کہ اﷲ تعالیٰ مرحومہ کواپنے جوار رحمت میں جگہ دے اور لواحقین کو صبرجمیل عطا فرمائے۔
ہم جناب ڈاکٹر جوہرقاضی اوران کے اہل خاندان کے اس غم میں برابر کے شریک ہیں۔مجھے بذاتِ خوداس سانحۂ ارتحال سے سخت جھٹکا لگاہے۔
[عمیدالرحمن عثمانی،جولائی واگست ۱۹۹۷ء]

 

Effects of Carica Papaya and Psidium Guajava Extracts on Hepato-Renal Performance of Streptozotocin- Induced Diabetic Male Albino Rats Carica Papaya and Psidium Guajava Extracts & Diabetic rats

The growing number of diabetes coupled with the harsh side effects of some synthetic drugs has led to the increasing search for alternative medicine which are relatively cheap with minimum side effects. Objective: To investigate the anti-diabetic effect of ethanolic extract of Carica papaya and Psidiumguajava extracts separately and in combination, and the effect of treatment on hepato-renal performance. Methods: Papaya and guava leaves were macerated in 98% ethanol for extraction. Results: The result showed that ethanolic leaf extract of P. Guajava and C. Papaya significantly (P< 0.05) reduced blood glucose level, Total Cholesterol (TC), triglycerides (TG), low density lipoprotein (LDL) and significant increase in high density lipoprotein (HDL) as compared to diabetic control group. Serum activities of liver enzymes such as aspartate aminotransferase (AST), alkaline phosphatase (ALP) and alanine aminotransferase (ALT) was slightly elevated that indicate hepatotoxic nature of plant extracts. The level of gamma-glutamyl transferase (GGT), bilirubin and HbA1C level were restored to normal range. A slight reduction in body weight (P>0.05) of treated groups was observed. Serum urea and creatinine concentration was restored to normal level in treated rats with regeneration of kidney function. Conclusions: The study concluded that individual and combined plant extract show anti-hyperglycemic effect but the combined remedy at this dose show hepatotoxicity

Phytochemical Investigation and Pharmacological Assessment of Taverniera Nummularia and Ifloga Spicata.

The present studies were performed to investigate the phytochemical composition and pharmacological potential of different solvent fractions (methanolic, n-hexane, dichloromethane, ethyl acetate and water) of Taverniera nummularia and Ifloga spicata. The different solvent fractions were tested for various types of phytochemicals, antimicrobial assay, hydrogen peroxide scavenging assay, DPPH (1, 1-diphenyl-2-picrylhydrazyl) free radical scavenging assay and detoxification effects of reactive oxygen species (ROS) on blood lymphocytes of humans under induced stress of H2O2. Methanolic extract of Taverniera nummularia and Ifloga spicata revealed significantly (p<0.05) higher antibacterial potential against S. aureus. The ethyl acetate, n-hexane and chloroform significantly showed higher antibacterial activity against P. aeruginosa. The different fractions for antibacterial activity used against E. coli were methanolic ethyl acetate, aqueous, n-hexane and chloroform. Maximum activity against fungi was exhibited by chloroform fraction against Aspergillus niger (64%), Aspergillus flavus (62.02%) and Aspergillus fumigates (59.25%). The n-hexane, aqueous, methanolic and ethyl acetate showed higher antioxidant activity were higher for n-hexane, aqueous, methanolic and ethyl acetate as a compare to other fractions. The superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) activities of the human blood lymphocytes were significantly (p<0.05) decreased in response to oxidative stress induced by H2O2. The antioxidant enzymes activities were significantly improved by the various leaf fractions of Taverniera nummularia and Ifloga spicata at 50µg/ml under H2O2 stress methanol and aqueous fractions being the most effective ones. The increase in antioxidant enzymes activities showed significant decrease in the reactive oxygen species (ROS) level and thiobarbituric acid (TBARS) content.The in vivo antidiabetic activity of methanolic extract of Taverniera nummularia (T. nummularia) and Iflago spicata (I. spicata) was investigated in mice. Treatment with alloxan significantly. The alloxan treated mice exhibited a significant increase in blood glucose level, total bilirubin, ALT, ALP, urea,creatinine,total proteins, triglycerides and LDL cholesterol content as compared with control group (p<0.05). Treatment with methanolic leaf extract of Taverniera nummularia and Ifloga spicata significantly decreased blood glucose level and resulted in a better body weight under hyperglycemic conditions. Moreover, increases in the content of bilirubin, ALT, ALP, urea,Craetinine,total proteins, triglycerides and LDL cholesterol due to hyperglycemia was normalized by treatment with methanolic extract of both the plant species. Further column chromatography to find the basic ingredients responsible for this potential will be very useful and interesting. This can result in diversity in natural product and pharmaceutical chemistry.