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排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Kuliev A Rechitsky S Verlinsky O Ivakhnenko V Cieslak J Evsikov S Wolf G Angastiniotis M Kalakoutis G Strom C Verlinsky Y 《Journal of assisted reproduction and genetics》1999,16(4):207-211
Background:
Preimplantation genetic diagnosis (PGD) allows couples at risk of having children with thalassemia to ensure the healthy outcome of their pregnancy.
Methods:
Seventeen PGD clinical cycles were initiated for Cypriot couples at risk of having children with different thalassemia mutations, including IVS1-110, IVSI-6, and IVSII-745. Unaffected embryos for transfer were selected by testing oocytes, using first and second polar body (PB) removal and nested polymerase chain reaction analysis followed by restriction digestion.
Results:
Unaffected embryos were selected in 16 of 17 PGD cycles. Of 166 oocytes studied from these cycles, 110 were analyzed by sequential analysis of both the first and the second PB, resulting in preselection and transfer of 45 unaffected embryos. This resulted in seven pregnancies and in the birth of five healthy thalassemia-free children. The embryos predicted to have inherited the affected allele were not transferred. Analysis of these embryos confirmed the PB diagnosis.
Conclusions:
Sequential first and second PB testing of oocytes is reliable for PGD of thalassemia and is a feasible alternative to prenatal diagnosis in high-risk populations. 相似文献
992.
993.
H. G. Wolf 《European journal of pediatrics》1954,75(1):27-36
Zusammenfassung Eingehende Darstellung der Diagnose und bisher bekannten Bedeutung der Alderschen Granulationsanomalie der Leukocyten an Hand zweier neuer Beobachtungen derselben bei Dysostosis multiplex (Pfaundler-Hurlersche Krankheit, gargoylism). Besonders auffällig erscheint der Befund der Alder-Anomalie im Zusammenhang mit ungewöhnlichen röntgenologischen Hüftbefunden. Auf den besonderen Wert der Anomalie als Früh- oder Detektorsymptom wird hingewiesen. 相似文献
994.
Paclitaxel and concurrent radiation for gastric cancer 总被引:14,自引:0,他引:14
Safran H Wanebo HJ Hesketh PJ Akerman P Ianitti D Cioffi W DiPetrillo T Wolf B Koness J McAnaw R Moore T Chen MH Radie-Keane K 《International journal of radiation oncology, biology, physics》2000,46(4):889-894
PURPOSE: To determine the activity and toxicity of paclitaxel and concurrent radiation for gastric cancer. METHODS AND MATERIALS: Twenty-seven patients were studied. Twenty-five had proximal gastric cancers, two had distal cancers. Eight had esophageal extension, 6 had celiac adenopathy, and 7 had retroperitoneal adenopathy. Patients received paclitaxel, 50 mg/m(2) by 3-hour intravenous (IV) infusion, weekly, on days 1, 8, 15, 22, and 29. Radiation was administered concurrently to a total dose of 45.0 Gy, in 1.80 Gy fractions, for 25 treatments. Patients who were medically or surgically inoperable received a sixth week of paclitaxel with a radiation boost to 50.4 Gy. RESULTS: Esophagitis and gastritis were the most important toxicities, Grade 3 in four patients (15%), and Grade 4 in three patients (11%). Five patients (19%) had Grade 3 nausea. The overall response rate was 56%, including three patients (11%) with a complete response. The 2-year progression-free and overall survival rates were 29% and 31%, respectively. CONCLUSION: Concurrent paclitaxel and radiation demonstrates substantial local-regional activity in gastric cancer. Future investigations combining paclitaxel and radiation with other local-regional and systemic treatments are warranted. 相似文献
995.
Leaf AN Wolf BC Kirkwood JM Haselow RE 《Medical oncology (Northwood, London, England)》2000,17(1):47-51
This study of etoposide in thyroid cancer was designed to determine the activity and toxicity of etoposide in a variety of
inoperable, thyroid hormone insensitive, and radio-iodine resistant primary cancers of the thyroid. The patients were required
to have an ECOG performance status of at least 3 and no previous exposure to chemotherapy. The etoposide was given at a dose
of 140 mg/m2 daily for 3 days and every 3 weeks until progression. The study was closed after 18 months because of poor accrual. There
were no responses seen among the 10 patients accrued. The toxicity was primarily hematologic. There was no evidence of activity
of etoposide in thyroid carcinoma, although this study lacked significant power because of the poor accrual. 相似文献
996.
997.
A. Langford R. Kunze S. Schmelzer H. Wolf H.-D. Pohle P. Reichart 《Journal of oral pathology & medicine》1992,21(2):49-57
Cytologic smears (CS) were taken from the lateral border of the tongue of HIV-seropositive patients (HIV+) (n = 39) and of seronegative controls (HIV-) (n = 19) and examined by immunocytochemistry (APAAP) and in situ hybridization (ISH) (biotinylated DNA probes) for the presence of viral antigens/DNA of EBV and CMV. While none of the HIV controls showed positive results for EBV antigen, 61% (APAAP) resp. 79% (ISH) of oral epithelial cells in the group of HIV+ patients were EBV-positive. While all CS taken from areas with the clinical diagnosis of hairy leukoplakia (HL) were EBV positive (APAAP and/or ISH), the detection of EBV in CS from uninvolved oral mucosa seemed to be associated with the later development of HL. In the group of HIV+ patients the detection rate for CMV was about five times (APAAP) resp. three times (ISH) higher than in HIV- persons. This non-invasive technique seems to be a valuable tool to screen for viral antigens/genomes. 相似文献
998.
Epithelial thymus tumors--therapy and prognosis 总被引:1,自引:0,他引:1
One hundred and two patients with epithelial thymoma (ET) and carcinoma have undergone surgical treatment since 1957. In this series thymomas were classified according to Masaoka's clinical staging criteria (encapsulated, invasive) and according to Müller-Hermelink's histological criteria of the resected specimens (medullary and cortical differentiation) and compared to clinical symptoms and survival rates (mean follow-up time 66.4 months). We found that it is not always possible to differentiate intraoperatively fibrous adhesions from infiltrations of the thymic capsule or to recognise thymus carcinoma as such macroscopically if they have not already infiltrated the organ's capsule. All ETs with cortical differentiation after thymectomy showed a malignant course; in contrary ETs with medullary differentiation we found without relapses of metastases. ETs with both histological types (hybrid typs) and cortical dominance took in only two out of 57 cases a malignant course though five of them showed an invasion into the capsule according to clinical staging criteria stage II. Therefore classifying ETs only into two categories, encapsulated and invasive, according to surgical and gross findings, seems to be not always possible and insufficient for the clinical assessment of the malignity and prognosis. 相似文献
999.
Amniotic fluid from 135 pregnancies was assayed for human chorionic gonadotropin (hCG) and its free alpha (ahCG) and free beta (bhCG) subunits. Forty-six chromosomally abnormal pregnancies between 14 and 20 weeks' gestation were matched with 89 chromosomally normal samples. Compared with controls, trisomy 21 pregnancies exhibited significantly elevated levels of all three peptides, whereas trisomy 18 gestations gave rise only to significant elevation of ahCG. Female fetuses in both the trisomy 21 and trisomy 18 pregnancies provided significantly elevated levels of hCG and bhCG compared to their male counterparts. On converting the values to multiples of the median, it was determined that 6 of 7 trisomy 18 samples had abnormally elevated alpha/beta ratios, as did 6 of 21 Down's syndrome pregnancies. Further, 11 of 21 trisomy 21 gestations had abnormal amniotic fluid hCG levels. Using only ahCG, bhCG and their ratio, a 61 per cent sensitivity was found for these trisomies, with a 96 per cent specificity. 相似文献
1000.
S. A. König C. E. Elger F. Vassella D. Schmidt A. Bergmann H. E. Boenigk P. A. Despland P. Genton G. Krämer W. Löscher T. Mayer H. Nau H. Schneble H. Siemes H. Stefan P. Wolf 《Der Nervenarzt》1998,69(10):835-840
Zusammenfassung
Valproat ist ein weitverbreitetes Antiepileptikum mit einem breiten Indikationsspektrum, bei dessen Anwendung seltene, aber
schwere Nebenwirkungen wie das Valproat-assoziierte Leberversagen auftreten k?nnen. Erstes Symptom ist dabei eine Befindlichkeitsst?rung
des Patienten. Isolierte Ver?nderungen von Standardlaborparametern der Leber sind kein Frühindikator. Eine frühzeitige Diagnostik
der Komplikation ist daher nach heutigem Wissensstand durch prophylaktische Laborkontrollen nicht m?glich. Entscheidend ist
die rechtzeitige Erkennung der beginnenden Komplikation auf der Basis klinischer Kriterien, u.U. bei gleichzeitig ver?nderten
Laborparametern. Ein sofortiges Absetzen der Valproins?ure und die gleichzeitige Gabe von Carnitin kann zu einer Unterbrechung
des sonst fatalen Ablaufs der Komplikation mit anschlie?ender Erholung führen. Im Rahmen einer Konsensuskonferenz wurden der
aktuelle Wissensstand über Früherkennung und Therapie der VPA-induzierten Hepatotoxizit?t diskutiert. Die Ergebnisse des Konsensus
wurden mit dem Ziel einer Verbessung der Arzneimittelsicherheit in einer Empfehlung über Laborkontrollen, Frühdiagnostik und
Therapie zusammengefa?t.
相似文献