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Biomedical subjects

B Goff

Publications and source records attributed to B Goff.

13 recordsLinked to original sources

Effect of glycoprotein IIb/IIIa inhibition without thrombolytic therapy on reperfusion in acute myocardial infarction: results of ReoMI pilot study.

The efficacy of abciximab and moderate dose heparin in attaining reperfusion in acute MI was tested in a multicenter pilot study. Patients with acute MI of less than 6-hr onset triaged to primary PTCA received intravenous abciximab bolus and infusion and heparin (70 u/kg) in the emergency room. Mean time to angiography from administration of abciximab was 34 +/- 23 min. TIMI flow rates were: grade 0-62%, grade I-20%, grade II-9%, and grade III-9%. Primary PTCA was performed with 100% success rate. Access site bleeding occurred in 10% of patients with no incidence of intracranial bleeding. TIMI II/III flow rates were 50% in a patient subset where angiography was delayed by 45 min. While not an alternative to thrombolytics in AMI, abciximab administration in the emergency room in patients triaged to PTCA may be beneficial in situation where door to needle time is delayed as TIMI II/III flows may be attained in some patients. Cathet. Cardiovasc. Intervent. 48:430-434, 1999.

Abciximab

Extrauterine pregnancy resulting from early uterine rupture.

BACKGROUND: Cesarean scar rupture of a gravid uterus in early gestation is rare. CASE: A 38-year-old woman, gravida 4, para 2-0-1-1, presented at 13 weeks' gestation with cramping and spotting. She had a history of two cesareans. Ultrasound and magnetic resonance imaging indicated probable uterine dehiscence and a viable extrauterine pregnancy. After embolization of the uterine arteries with subsequent fetal death, the subject had a hysterectomy. Intraoperatively, she had complete rupture of the lower uterine segment, but the pregnancy was enclosed within scar tissue between the uterus and bladder. Placenta percreta was found by histologic examination. CONCLUSION: Women with histories of cesareans might be at risk of early uterine rupture.

Adult

Telomerase activation in cervical cancer.

It has been hypothesized that infection with high-risk human papillomaviruses (HPVs), in conjunction with other cellular events, plays a critical role in the development of cervical cancer. Activation of telomerase, a ribonucleoprotein enzyme complex that synthesizes telomere repeats, has been associated with acquisition of the immortal phenotype in vitro and is commonly observed in human cancers. In this study, we have examined 10 high-grade cervical cancers for telomerase activity and for the presence of HPV. Telomerase activity was detected in all of the cancers but in none of the paired histopathologically normal uterine tissues or in normal cervical epithelium. Analysis of these same tissues for HPV nucleic acids by polymerase chain reaction (PCR) using primers from the HPV L1 and E6 open reading frames demonstrated that 7 of 10 cancers were positive for HPV, 3 for HPV type 16 (HPV-16), and 4 for HPV-18. In one case, HPV-16 was detected in histopathologically normal uterine tissue, the same type as that detected in the cancer from the same patient. HPV DNA was not detected in 3 of 10 cancers. These results indicate that telomerase activation is common in high-grade cervical cancers and suggests that telomerase activity may be a useful diagnostic marker for the disease.

Adenocarcinoma

Three forms of stress in Cambodian adolescent refugees.

Sixty-nine Cambodian adolescents and young adults were interviewed to determine their experience as children surviving the Pol Pot regime (1975-1979); their first-year experience of resettlement in this country; and their experience of stressful events during the past year. Current DSM-III-R diagnostic status was also determined. A strong relationship between earlier war trauma, resettlement strain, and symptoms of posttraumatic stress disorder (PTSD) was found. In contrast, the strongest relationship with depressive symptoms was found for recent stressful events. These results are discussed in light of current findings from stress and PTSD research.

Adolescent

A 6-year follow-up study of Cambodian refugee adolescents traumatized as children.

Seventy-three percent of a sample of 46 Cambodian youth interviewed in 1984 and 1987 were reinterviewed in 1990 as part of a pretest for a multisite study of Cambodian refugee trauma now under way. An additional sample of convenience of 38 youth were also interviewed to determine reliability and validity of the diagnostic instruments chosen for the larger study. The DSM-III-R diagnosis of post-traumatic stress disorder (PTSD) was found to persist, but the symptoms appeared less intense over time. In contrast, the prevalence of depression dropped markedly since 1987. Subjects remained largely free of comorbid conditions. Diagnostic reliability and validity were satisfactory. The follow-up sample appeared to be functioning well despite their PTSD profiles. The findings are discussed in light of several current controversies surrounding the concept and measurement of PTSD.

Adolescent

Characteristics of participants in a large group awareness training.

A study was conducted to assess the psychosocial characteristics of individuals who become involved in large group awareness training (LGAT) programs. Prospective participants in The Forum, which has been classified as an LGAT, were compared with nonparticipating peers and with available normative samples on measures of well-being, negative life events, social support, and philosophical orientation. Results revealed that prospective participants were significantly more distressed than peer and normative samples of community residents and had a higher level of impact of recent negative life events compared with peer (but not normative) samples. Prospective participants also held preparticipation values more similar to those espoused by the LGAT than peer or normative samples, and the three groups failed to be distinguished by their levels of social support. The implications of the findings are considered for understanding participation in LGATs and other self-change promoting activities.

Analysis of Variance

Preoperative angiographic uterine artery embolization in the management of cervical pregnancy.

The diagnosis of a cervical ectopic pregnancy is often made intraoperatively in the presence of extensive hemorrhage during attempted evacuation. In some cases, hysterectomy has been the necessary treatment to control bleeding. We report two cases of cervical pregnancy detected by ultrasound. Before pregnancy termination, the uterine arteries were successfully embolized using angiographic techniques. As a result, surgical evacuation was performed with minimal hemorrhage; hysterectomy was not required and the patients' potential fertility was retained.

Abortion, Therapeutic

Gangliosides of human acute leukemia cells.

We characterized the gangliosides from cells of eight patients with different forms of acute leukemia (four lymphoblastic, four nonlymphoblastic) by thin-layer chromatography and high-performance liquid chromatography combined with glycosidase treatment. Our analysis indicated both quantitative and qualitative differences between the gangliosides of acute leukemia and those of normal leukocytes: 1, the absolute amount of ganglioside was decreased in the acute leukemia cells; 2, in general, acute leukemias had a more simplified ganglioside pattern in that they contained a greater proportion of the short-chain ganglioside, II3NeuAc-LacCer (GM#); 3, all of the acute leukemia cells contained reduced quantities of the ganglioside N-acetylneuraminosyl-lactotriaosylceramide, a compound previously found only in normal leukocytes; and 4, a disialylated ganglioside, II3(NeuAc)2-LacCer (GD3), which is not found in normal leukocytes, was isolated from the cells of one patient with acute nonlymphoblastic leukemia. These findings demonstrate important differences between the gangliosides of acute leukemia cells and normal leukocytes.

Acute Disease

Excitatory cold.

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Cryosurgery