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排序方式: 共有69条查询结果,搜索用时 397 毫秒
31.
NV Whittock S Ellard J Duncan CEM de Die-Smulders JSH Vles PD Turnpenny 《Clinical genetics》2004,66(1):67-72
Spondylocostal dysostoses (SCD) are a heterogeneous group of disorders of axial skeletal malformation characterized by multiple vertebral segmentation defects and rib anomalies. Sporadic cases with diverse phenotypes, sometimes including multiple organ abnormalities, are relatively common, and monogenic forms demonstrating autosomal recessive (AR) and, more rarely, autosomal dominant (AD) inheritance have been reported. We previously showed that mutations in delta-like 3 (DLL3), a somitogenesis gene that encodes a ligand for the notch signaling pathway, cause AR SCD with a consistent pattern of abnormal segmentation. We studied an SCD family previously reported to show AD inheritance, in which the phenotype is similar to that in AR cases. Direct DLL3 sequencing of individuals in two generations identified the affected father as homozygous for a novel frameshift mutation, 1440delG. His two affected children were compound heterozygotes for this mutation and a novel missense mutation, G504D, the first putative missense mutation reported in the transmembrane domain of DLL3. Their two unaffected siblings were heterozygotes for the 1440delG mutation. Pseudodominant inheritance has been confirmed, and the findings raise potential consequences for genetic counseling in relation to the SCD disorders. 相似文献
32.
Serdiuk SE Bakalov SA Golitsyn SP Molashenko NV Platonova NM Sviridenko NIu 《Terapevticheski? arkhiv》2005,77(10):33-39
AIM: To analyze occurrence of thyroid dysfunction due to regular long-term intake of amiodaron (for one year), to search for predictors of amiodaron-induced hypothyroidism and thyrotoxicosis. MATERIAL AND METHODS: Sixty two patients with different types of arrhythmia have undergone examination including tests for TTH (once in three months), free T3 and T4 (once in 6 months), ultrasound thyroid investigation, general clinical and physical check-up, resting ECG in 12 leads, echocardiography, chest x-ray, biochemical blood tests, blood count, urinalysis. RESULTS: Amiodaron intake for 1 year was associated with amiodaron-induced thyroid dysfunction in 25% patients: 19.2% developed hypothyroidism, 5.8%--thyrotoxicosis. Organic pathology of cardiovascular system, cardiac failure, left ventricular aneurysms, low global myocardial contractility, organic thyroid pathology, elevated levels of antithyroid antibodies predicted hypothyroidism. Thyrotoxicosis was associated with a young age and male sex. CONCLUSION: Amiodaron may cause thyroid dysfunction in patients with arrhythmia. 相似文献
33.
Serdiuk SE Bakalov SA Golitsyn SP Kotkina TI Molashenko NV Platonova NM Sviridenko NIu 《Kardiologiia》2005,45(2):11-14
Blood lipid levels were measured in 23 patients with amiodarone associated hypothyroidism (most of them had ischemic heart disease). Abnormalities of lipid spectrum were found in 12 of these patients. All 12 patients were subjected to replacement therapy with l-thyroxine. Compensation of thyroid status was associated with average 12.6 and 12.3% lowering of total and low density lipoprotein cholesterol, respectively. However target levels of low density lipoprotein cholesterol were achieved only in 1 patient. There were no significant changes of high density lipoprotein cholesterol and triglycerides. 相似文献
34.
Zhang X Lin T Bertasso A Evans C Dorr A Kolis SJ Salgo M Patel I;T-/NV Study Group 《Journal of clinical pharmacology》2007,47(4):510-517
The objective of this study was to characterize the population pharmacokinetics of enfuvirtide in HIV-1-infected children and adolescents. HIV-infected patients received combination antiretroviral therapy, including enfuvirtide 2.0 mg/kg subcutaneously, twice daily. Serial and trough blood samples were collected up to 48 weeks. NONMEM was used for population pharmacokinetic analysis. Enfuvirtide exposure was calculated from individual parameter estimates derived from the final model. A total of 218 samples from 43 patients were included in the analysis. Enfuvirtide plasma concentration-time data were described by a 1-compartment model with first-order absorption and elimination. The addition of each subject's actual body weight as a covariate affected CL/F but not V/F or K(a). The population CL/F, V/F, and K(a) for a 33-kg reference patient was 1.31 L/h, 2.31 L, and 0.105 h(-1), respectively. The final model was CL/F (L/h) = 1.31 . (body weight/33 [kg])(0.721). Age did not affect enfuvirtide exposure. These results confirm the appropriateness of body weight-based pediatric enfuvirtide dosing. 相似文献
35.
Pasarica M Loiler S Koska J Permana P Ravussin E Kilroy G Gimble JM Dhurandhar NV 《Obesity reviews》2006,7(S2):36-37
Human adenovirus Ad-36 causes adiposity in animal models and shows association with human obesity. The mechanism involved is unknown. We previously reported that Ad-36 enhances differentiation of 3T3-L1 preadipocytes and E4orf-1 gene of the virus is responsible for the adipogenic effect in the rodent cell line. We undertook a three-step approach to investigate the role of preadipocyte differentiation in adipogenic effect of Ad-36. First, we showed that the viral mRNA is expressed in adipose-derived stem cells (ASC) of animals experimentally infected with Ad-36. Infection of rats with Ad-36 resulted in increased epididymal fat pad weight and the expression of Ad-36 E4orf-1 mRNA was detected in ASC isolated from the fat pads. Next, we determined if humans naturally infected with Ad-36 will show greater preadipocyte differentiation. Subcutaneous adipose-tissue samples from 33 Pima Indian subjects were screened by nested-PCR specific for Ad-36 DNA. Nine subjects (27%) had Ad-36 DNA. A blinded comparison of their ASC showed greater differentiation to adipocytes for the Ad-36 DNA positive subjects ( P = 0.06) compared to the Ad-36 DNA negative group. Finally, we used a direct approach. Human-ASC when infected with Ad-36 showed spontaneous replication, differentiation, and lipid accumulation, which was significantly greater than the uninfected controls ( P < 0.01). Ad-36 induced lipid accumulation in human-ASC increased in response to the viral load and the lipogenic response was observed regardless of the donor gender and over an age range of 22–57 years. These results suggest that ability of Ad-36 to induce preadipocyte differentiation may play a role in human adiposity. 相似文献
36.
高位胸段硬膜外麻醉下清醒病人的冠状动脉搭桥手术 总被引:2,自引:0,他引:2
目的 了解在高位胸段硬膜外麻醉下避免全麻行非体外循环心脏跳动下冠状动脉搭桥手术的可行性。方法 硬膜外麻醉下对 2 5例清醒病人行非体外循环心脏跳动下冠状动脉搭桥手术 ,没有气管插管全麻 ,所有病人在手术前晚行硬膜外置管。结果 总共搭桥 71支 (1支 11例 ,2支 5例 ,3支 6例 ,4支 3例 )。除 1例因为术中出现室颤转为全麻和体外循环外 ,2 4例在硬外麻作为唯一麻醉下完成非体外循环心脏跳动下冠状动脉搭桥手术。除 2例行左胸小切口外其余行正中切口 ;其中 6例为再次手术 ;平均每例搭桥2 8支 ,没有手术死亡。术后在复苏室和病房住院时间分别为 (16 2± 4 2 )h和 (3 2 4± 1 2 )d。结论 本组的早期经验提示在没有气管插管全麻、病人清醒下可以行多支冠状动脉搭桥术 相似文献
37.
Sukernik RI Derbeneva OA Starikovskaya EB Volodko NV Mikhailovskaya IE Bychkov IY Lott M Brown M Wallace D. 《Journal of the peripheral nervous system : JPNS》2002,7(3):211-212
To date, more than 100 point mutations and several hundreds of structural rearrangements of mitochondrial DNA (mtDNA) are known too be connected with characteristic neuromuscular and other mitochondrial syndromes varying from those causing death at the neonatal stage to diseases with late ages of onset. The immediate cause of mitochondrial disorders is a defective oxidative phosphorylation. Wide phenotypic variation and the heteroplasmy phenomenon, which some authors include in mutation load, are characteristic of human mitochondrial diseases. As the numbers of cases identified and pedigrees described increase, data on the genotype-phenotype interaction and the structure and frequency of pathogenic and conditionally pathogenic mtDNA mutations in human populations are rapidly accumulated. The data on the genetics and epidemiology of mitochondrial diseases are not only important for differential diagnosis and genetic counseling. Since both neutral and mildly pathogenic mutations of mtDNA are progressively accumulated in maternal phyletic lines, molecular analysis of these mutations permits not only reconstruction of the genealogical tree of modern humans, but also estimation of the role that these mutations play in natural selection. 相似文献
38.
39.
Georg Feldmann Anjali Mishra Savita Bisht Collins Karikari Ignacio Garrido-Laguna Zeshaan Rasheed Niki A Ottenhof Tikva Dadon Hector Alvarez Volker Fendrich NV Rajeshkumar William Matsui Peter Brossart Manuel Hidalgo Rajat Bannerji Anirban Maitra Barry D Nelkin 《Cancer biology & therapy》2011,12(7):598-609
Pancreatic cancer is one of the most lethal of human malignancies, and potent therapeutic options are lacking. Inhibition of cell cycle progression through pharmacological blockade of cyclin-dependent kinases (CDK) has been suggested as a potential treatment option for human cancers with deregulated cell cycle control. Dinaciclib (SCH727965) is a novel small molecule multi-CDK inhibitor with low nanomolar potency against CDK1, CDK2, CDK5 and CDK9 that has shown favorable toxicity and efficacy in preliminary mouse experiments, and has been well tolerated in Phase I clinical trials. In the current study, the therapeutic efficacy of SCH727965 on human pancreatic cancer cells was tested using in vitro and in vivo model systems. Treatment with SCH727965 significantly reduced in vitro cell growth, motility and colony formation in soft agar of MIAPaCa-2 and Pa20C cells. These phenotypic changes were accompanied by marked reduction of phosphorylation of Retinoblastoma (Rb) and reduced activation of RalA. Single agent therapy with SCH727965 (40 mg/kg i.p. twice weekly) for 4 weeks significantly reduced subcutaneous tumor growth in 10/10 (100%) of tested low-passage human pancreatic cancer xenografts. Treatment of low passage pancreatic cancer xenografts with a combination of SCH727965 and gemcitabine was significantly more effective than either agent alone. Gene Set Enrichment Analysis identified overrepresentation of the Notch and Transforming Growth Factor-β (TGFβ) signaling pathways in the xenografts least responsive to SCH727965 treatment. Treatment with the cyclin-dependent kinase inhibitor SCH727965 alone or in combination is a highly promising novel experimental therapeutic strategy against pancreatic cancer.Key words: pancreatic cancer, xenograft mouse models, cyclin-dependent kinases, SCH727965, dinaciclib, cell cycle, translational research 相似文献
40.
TK Mohamed Saleem AK Azeem C Dilip C Sankar NV Prasanth R Duraisami 《Asian Pacific Journal of Tropical Biomedicine》2011,1(2):147-149