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We outline a proposal for the use of living unrelated kidney donors for transplantation. This proposal, although recommended by the Saudi National Committee on Renal Transplantation, is still under discussion and has not been implemented yet. We feel that this proposal is ethical with airtight safeguards against commercialization and for the protection of the well-being of the donor with assurance that he or she has not been coerced into donation. 相似文献
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Pakistan has one of the largest cohorts of young people in its history, yet research on their circumstances and needs is still relatively new. In this study, twenty four focus group discussions were conducted to explore young peoples' experiences of gaining knowledge of personal and sexual development. Young women typically gained information from a limited number of sources within the home, while young men accessed a wide variety of information sources outside the home. Gaining information was frequently event-based, whereby specific events (i.e. puberty, marriage) trigger information provision to young people, however often too late to be educative. Overall, young people were critical of the quality of information they received, which often led to confusion and stress in understanding sexual development. Findings highlight a gap in formal systems of information provision. Although young people highlighted the merits of school-based information delivery, low school attendance and high drop-out rates amongst girls mean that alternative mechanisms of reaching young Pakistani women need to be identified. 相似文献
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Neuropilins and group A plexins are components of receptor complexes for class 3 semaphorins, gradients of which help to guide migration of neural progenitor cells and axonal growth cones during development. We demonstrated previously that neuropilins and class 3 semaphorins are induced in sciatic nerve by crush or transection. We now report that in cultured rat Schwann cells, expression of mRNA encoding neuropilin-2 (NRP2) and plexin-A3 (PlexA3), proteins involved in semaphorin-3F (Sema3F) signal transduction, is diminished markedly by forskolin, an adenylate cyclase activator that, like axonal contact, induces Schwann cell synthesis of myelin lipids and proteins. Interestingly, Schwann cell expression of mRNA encoding NRP1, which participates in Sema3A signaling, is not downregulated by forskolin. Antibodies that recognize ectodomains of NRP2 but not control antibodies prevented cultured Schwann cells from aligning in parallel and forming columns. These results are consistent with the view that in nerves undergoing Wallerian degeneration, Schwann cell NRP2 facilitates assembly of Schwann cells into the tubular aggregates (bands of Büngner) that guide regenerating axons. 相似文献
87.
Cousineau TM Lord SE Seibring AR Corsini EA Viders JC Lakhani SR 《Fertility and sterility》2004,81(3):532-538
OBJECTIVE: To develop and test the feasibility of a theory-driven, psychosocial support CD-ROM prototype for couples in infertility treatment. DESIGN: Focus group meetings with reproductive health experts, semistructured interviews with infertility patients, and content analysis of an infertility message board to determine content domains of the CD-ROM. Usability and acceptance testing of prototype CD-ROM based on predetermined feasibility criteria. SETTING: Private offices and fertility centers. PATIENT(S): Expert panel of 5 reproductive health specialists; interviews with 62 individuals with infertility (35 women, 27 men); feasibility study with 12 patients and 12 experts in reproductive medicine and infertility support. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Product usability/acceptance test. RESULT(S): Participant feedback and content analysis informed the development of a prototype patient education CD-ROM that uses audio, video, interactive tasks, and personalized feedback. Over 80% of participants successfully completed usability tasks, and over 90% rated prototype satisfaction as "good" to "excellent." Some areas were noted for improvement in navigation and refinement in delivery of instructions. Results strongly indicate an interest in an infertility multimedia support tool. CONCLUSION(S): Multimedia methods may serve as an effective, innovative psychosocial intervention for infertility patients and overcome barriers of limited local access to educational and support services. 相似文献
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Sinatra RS Shen QJ Halaszynski T Luther MA Shaheen Y 《Anesthesia and analgesia》2004,98(1):135-40, table of contents
Rofecoxib is a selective cyclooxygenase-2 inhibitor that reduces pain and inflammation without inhibiting platelet function. We examined its effects on effort-dependent pain, postoperative morphine requirements, and pulmonary function in 48 patients recovering from open abdominal surgery. Spirometric measurement of forced expiratory volume(1) and vital capacity (FVC) were assessed preoperatively. One hour before the induction of a standardized general anesthetic, patients were given either placebo oral suspension (Group A), or rofecoxib oral suspension (25 mg [Group B] or 50 mg [Group C]) in a double-blinded manner. Postoperative pain control was provided with IV morphine in the postanesthesia care unit and IV-patient-controlled analgesia morphine on the patient care unit. Morphine dose, pain intensity at rest, and pain after respiratory effort (postoperative spirometry) were assessed at 12 and 24 h after study drug administration. The patient-controlled analgesia morphine dose at 24 h was reduced 44% in Group B (30.3 +/- 17.5 mg) and 59% in Group C (22.1 +/- 16.5 mg) versus Group A (53.7 +/- 31.1 mg); P < 0.01 (A versus B). At 12 h, pain scores at rest and after spirometry were lower in Groups B and C than in A (P < 0.05). At 24 h, resting pain scores were lowest in Group C (P < 0.05). Twelve-hour FVC was best preserved in Group C (P < 0.03). There were no inter-group differences in adverse effects or perioperative blood loss. Rofecoxib oral suspension provided a morphine-sparing effect, as well as improvements in pain control and 12-h FVC in patients recovering from open abdominal surgery. IMPLICATIONS: Rofecoxib belongs to class of analgesics known as cyclooxygenase-2 inhibitors that reduce pain and inflammation with less risk of bleeding than standard nonsteroidal antiinflammatory drugs. We found that patients treated with rofecoxib 25 or 50 mg before open abdominal surgery required less IV morphine during the first day of recovery. Despite reductions in morphine requirements, rofecoxib-treated patients reported lower pain intensity scores at rest and after a vigorous cough. In the 50-mg group, improvements in pain control correlated with greater preservation of baseline cough effectiveness (vital capacity) at 12 h. These findings may offer clinical advantages in patients with preexisting pulmonary disease. 相似文献
89.
The reported annual incidence of end-stage renal disease in Saudi Arabia is 100 to 120 patients per million population. The first dialysis unit in Saudi Arabia was established in 1971; thereafter, rapid advances have been made in the field of renal replacement therapy. At the end of 2002, there were 144 centers offering dialysis to about 7390 patients. A National Kidney Foundation was established in 1985 to implement the cadaveric organ transplant program and to coordinate the renal care facilities. This center was renamed Saudi Center for Organ Transplantation (SCOT) in 1993 to encompass transplantation of organs other than the kidney. An impetus was achieved in 1982 with the approval by Islamic scholars of the concept of brain-death and organ transplantation. From 1979, when the first renal transplant was performed, until the end of 2002, more than 3810 renal transplants have been performed in 13 transplant centers in Saudi Arabia, in addition to 260 liver, 95 heart, 280 heart valve, 510 cornea, 4 pancreas, 8 lung, and 1000 bone marrow transplants. The survival of patients and (grafts) in those who received living related renal transplants was 98.4(96.9), 96.7(96.7), and 96.7(92.2) at 1, 3, and 5 years, respectively. Moreover, the survival of patients and grafts among those who received cadaveric donor organs was 96.2(96.2), 93(92.1), and 93(87.2), at 1, 3, and 5 years, respectively. In conclusion, there has been increased renal transplantation in Saudi Arabia and there is even more room to increase the frequency of these transplants to decrease the expanding gap between supply and demand through increasing the efforts for organ donation from living and cadaveric donors. 相似文献
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