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91.
Sayed KA Khalil AA Yousaf M Labadie G Kumar GM Franzblau SG Mayer AM Avery MA Hamann MT 《Journal of natural products》2008,71(3):300-308
Chemical transformation studies were conducted on (-)-8-hydroxymanzamine A ( 1), (-)-manzamine F ( 2), manzamine A ( 3), and (+)-8-hydroxymanzamine A ( 4), isolated from Indo-Pacific Acanthostrongylophora sponges. Thirteen new semisynthetic manzamine derivatives, including four Delta (34,35) manzamines ( 5, 6, 8, and 9) and the unprecedented manzamine derivative 17, are reported. The potent in vitro activities of the obtained semisynthetic manzamines against activated brain microglia and the AIDS opportunistic infection pathogen Mycobacterium tuberculosis are presented. 相似文献
92.
Sultan S Heskin L Hynes N Akhtar Y Cough V Manning B Aremu M Courtney D 《Vascular and endovascular surgery》2005,39(6):531-535
Subintimal angioplasty is a safe, effective, but nondurable procedure in treating long superficial femoral artery occlusions in patients with severe lower limb ischemia. The authors report a case of acute thrombosis that presented 16 weeks after subintimal angioplasty. The ;;Trellis' percutaneous thrombolytic infusion system permitted a controlled site-specific infusion of recombinant tissue-type plasminogen activator (rtPA). The unique design of the ;;Trellis' allowed complete aspiration of thrombus and avoiding regional and systemic thrombolytic side effects. The ;;Trellis' system is effective in percutaneous management of thrombotic lesions; however, intimal dissection may need to be addressed. 相似文献
93.
Mustafa R Yousaf S Baqai Z 《Journal of the College of Physicians and Surgeons--Pakistan : JCPSP》2005,15(8):500-501
Myasthenia Gravis with pregnancy is a rare concomitance. This case report describes successful outcome of all pregnancies in a lady with this problem. The management is described. 相似文献
94.
Perineal sinus is a troublesome complication after proctectomy for inflammatory bowel disease or rectal cancer. The results from treatment with simple dressings with or without surgical debridement are suboptimal. Definitive management may require complex operations with muscular or musculocutaneous flaps. Vacuum-assisted dressings have been used successfully for management of chronic wounds and soft tissue defects. This technique was successfully used in the management of a perineal sinus, which occurred after proctectomy for rectal cancer developing on a background of inflammatory bowel disease and preoperative radiotherapy. 相似文献
95.
Butt T Ahmad RN Kazmi SY Afzal RK Mahmood A 《Journal of the College of Physicians and Surgeons--Pakistan : JCPSP》2003,13(12):728-734
Tuberculosis (TB) continues to be the bane of mankind. Early diagnosis is the cornerstone of tuberculosis control strategies. Recent years have seen major advances in the fields of biotechnology and molecular biology with introduction of several new diagnostic techniques for tuberculosis and improvement in the existing ones. The new automated culture techniques have appreciably reduced the time required for detection and antimicrobial susceptibility testing. The molecular amplification techniques like the Polymerase Chain Reaction (PCR) have made the same-day diagnosis a reality. Improvements in serology and introduction of novel new techniques like the bacteriophage assays have also shown a lot of promise. However, most of these new techniques are too expensive and sophisticated to be of any practical benefit to the vast majority of TB patients living in underdeveloped countries like Pakistan for whom an early and inexpensive diagnosis remains as elusive as ever. In this article various existing modalities as well as the new advances in TB diagnostics are reviewed. 相似文献
96.
The nuclear morphology, diameter and in vitro meiotic competence of buffalo oocytes was compared relative to follicle size. Cumulus-oocyte complexes (COCs) were collected from 1-<2, 2-<3, 3-<4, 4-<6 and 6-<8 mm follicles from abattoir ovaries. Cumulus cells were removed using 3 mg mL(-1) hyaluronidase in saline and repeated pipetting. Denuded oocytes were measured, fixed in 3% glutaraldehyde, stained with 4,6-diamidoino-2-phenylindole and evaluated for nuclear morphology, namely the stage of germinal vesicle (GV) development before in vitro maturation (IVM). The COCs from >2-mm follicles were matured in vitro in their respective size groups for 24 h in Medium 199 supplemented with 10 microg mL(-1) follicle-stimulating hormone, 10 microg mL(-1) luteinizing hormone, 1.5 microg mL(-1) oestradiol, 75 microg mL(-1) streptomycin, 100 IU mL(-1) penicillin, 10 mM HEPES and 10% fetal bovine serum. Matured oocytes were fixed, stained and evaluated for GV status and meiotic development. The number of oocytes collected from follicles 1-<8 mm in diameter averaged 1.82 per ovary. Oocytes from follicles 1-<2 mm (107.7 +/- 1.6 microm), 2-<3 mm (108 +/- 1.1 microm) and 3-<4 mm (114.6 +/- 1.3 microm) in diameter were smaller in diameter (P < 0.05) than oocytes from follicles 4-<6 mm (124.4 +/- 1.3 microm) and 6-<8 mm (131.9 +/- 1.4 microm) in diameter. A majority of oocytes (P< 0.05) from <4-mm follicles was at the initial stages of GV development (GV-I, II and III), whereas oocytes from 4-<6- and 6-<8-mm follicles were at the final stages of GV-IV (35.0 and 21.6% respectively) and GV-V (49.1 and 67.5% respectively). Poor IVM rates of 32.0% and 32.7% to metaphase (M)-II were observed for oocytes isolated from 2-<3- and 3-<4-mm follicles, respectively, whereas significantly (P< 0.05) more oocytes from 4-<6- and 6-<8-mm follicles reached M-II (67.1% and 79.1% respectively). In conclusion, buffalo oocytes displayed a size-dependent ability to undergo meiotic maturation and we suggest that oocytes from >4-mm follicles should be considered in buffalo in vitro fertilization systems for better results. 相似文献
97.
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99.
Muhammad Zubair Yousaf Adeena Siddique Usman Ali Ashfaq Muhammad Ali 《Asian Pacific journal of tropical medicine》2018,(1)
Dengue fever is one of the major health problems in tropical and subtropical areas throughout the world. The causative agent of dengue fever is the dengue virus which is an enveloped single stranded RNA virus belongs to the family Flaviviridae and has five distinct serotypes(DENV-1,DENV-2, DENV-3, DENV-4 and DENV-5). Dengue virus is transmitted to human via bite of Aedes aegypti and Aedes albopictus mosquitoes. The clinical symptoms of dengue fever ranging from mild to severe form as dengue hemorrhagic fever and dengue shock syndrome. Pakistan is dengue endemic since 1994 but from 2006, Pakistan faced the worst condition regarding dengue in which thousands of people affected by the disease and hundreds of people lost their lives. DENV-2, DENV-3 and DENV-1 are the prevalent serotypes in Pakistan. Common diagnostic techniques are being used in Pakistan such as enzyme-linked immunosorbent assay,polymerase chain reaction and rapid diagnostic tests, while differential diagnosis, limitations of diagnostic methods and poor health care system are the real challenges in dengue diagnosis.Favorable climatic conditions, unplanned urbanization, travelling etc., are major factors responsible for dengue epidemics in Pakistan. This presentation provides update about dengue circumstances in Pakistan and also describes the way how to improve dengue situation in Pakistan. 相似文献
100.