排序方式: 共有8条查询结果,搜索用时 15 毫秒
1
1.
2.
Christian Berger Ramakrishnan Kannan Sudharani Myneni L.S. Shashidhara Gerhard M. Technau 《Developmental biology》2010,337(2):415-602
During development, neural progenitor cells or neuroblasts generate a great intra- and inter-segmental diversity of neuronal and glial cell types in the nervous system. In thoracic segments of the embryonic central nervous system of Drosophila, the neuroblast NB6-4t undergoes an asymmetric first division to generate a neuronal and a glial sublineage, while abdominal NB6-4a divides once symmetrically to generate only 2 glial cells. We had earlier reported a critical function for the G1 cyclin, CyclinE (CycE) in regulating asymmetric cell division in NB6-4t. Here we show that (i) this function of CycE is independent of its role in cell cycle regulation and (ii) the two functions are mediated by distinct domains at the protein level. Results presented here also suggest that CycE inhibits the function of Prospero and facilitates its cortical localization, which is critical for inducing stem cell behaviour, i.e. asymmetric cell division of NB6-4t. Furthermore our data imply that CycE is required for the maintenance of stem cell identity of most other neuroblasts. 相似文献
3.
Hiron M. Harshan Surya Sankar L.P. Singh Manish Kumar Singh S. Sudharani M.R. Ansari S.K. Singh A.C. Majumdar P. Joshi 《Animal reproduction science》2009,115(1-4):306-311
The FN-2 family of seminal plasma proteins represents the major protein fraction of bovine seminal plasma. These proteins also constitute the major seminal plasma proteins fraction in horse, goat and bison seminal plasma and are present in pig, rat, mouse, hamster and human seminal plasma. BSP-A1 and BSP-A2, the predominant proteins of the FN-2 family, are collectively termed as PDC-109. Fn-2 proteins play an important role in fertilization, including sperm capacitation and formation of oviductal sperm reservoirs. Significantly, BSP proteins were also shown to have negative effects in the context of sperm storage. No conclusive evidence for the presence of buffalo seminal plasma protein(s) similar to PDC-109 exists. Studies with buffalo seminal plasma indicated that isolation and identification of PDC-109-like protein(s) from buffalo seminal plasma by conventional methods might be difficult. Thus, antibodies raised against PDC-109 isolated, and purified from cattle seminal plasma, were used for investigating the presence of PDC-109-like protein(s) in buffalo seminal plasma. Buffalo seminal plasma proteins were resolved on SDS-PAGE, blotted to nitro cellulose membranes and probed for the presence of PDC-109-like protein(s) using the PDC-109 antisera raised in rabbits. A distinct immunoreactive band well below the 20-kDa regions indicated the presence of PDC-109-like protein(s) in buffalo seminal plasma. 相似文献
4.
5.
George M. Carter Debbie Indyk Matthew Johnson Michael Andreae Kathryn Suslov Sudharani Busani Aryan Esmaeili Henry S. Sacks 《PloS one》2015,10(4)
BackgroundApproximately 28.5 million people living with HIV are eligible for treatment (CD4<500), but currently have no access to antiretroviral therapy. Reduced serum level of micronutrients is common in HIV disease. Micronutrient supplementation (MNS) may mitigate disease progression and mortality.ObjectivesWe synthesized evidence on the effect of micronutrient supplementation on mortality and rate of disease progression in HIV disease.MethodsWe searched MEDLINE, EMBASE, the Cochrane Central, AMED and CINAHL databases through December 2014, without language restriction, for studies of greater than 3 micronutrients versus any or no comparator. We built a hierarchical Bayesian random effects model to synthesize results. Inferences are based on the posterior distribution of the population effects; posterior distributions were approximated by Markov chain Monte Carlo in OpenBugs.ConclusionsMNS significantly and substantially slows disease progression in HIV+ adults not on ARV, and possibly reduces mortality. Micronutrient supplements are effective in reducing progression with a posterior probability of 97.9%. Considering MNS low cost and lack of adverse effects, MNS should be standard of care for HIV+ adults not yet on ARV. 相似文献
6.
7.
Jayasree Pillarisetti Martin Emert Mazda Biria Rashaad Chotia Rajeshwer Guda Sudharani Bommana Rhea Pimentel James Vacek Raghuveer Dendi Loren Berenbom Buddhadeb Dawn Dhanunjaya Lakkireddy 《Indian pacing and electrophysiology journal》2015,15(1):20-29
BackgroundDespite ACC/AHA guidelines indicating implantable cardioverter defibrillator (ICD) as class I therapy for primary prevention of sudden cardiac death in patients with EF≤35%, ICD utilization rates in real world practice have been low.ObjectiveTo determine the rate of ICD implantation at a tertiary care academic center and to assess the reasons for under-utilization of the same.MethodsReview of a prospectively collected database which included all patients diagnosed with an EF≤35% was performed to assess the rate of ICD implantation and mortality. Reasons for non-implantation of ICD were then assessed from detailed chart review.ResultsA total of 707 patients (age 69.4 ± 14.1 years) with mean EF of 26±7% were analyzed. Only 28% (200/707) of patients had ICDs implanted. Mortality was lower in the group with ICD (25% vs 37%, p=0.004). When patients who either died or were lost to follow-up prior to 2005 were excluded, ICD utilization rate was still low at 37.6%. The most common reason for non-implantation of ICD was physicians not discussing this option with their patients. Patient refusal was the second most common reason.ConclusionsICD Implantation rates for primary prevention of SCD in patients with EF≤35% is low. Physician and patient education should be addressed to improve the utilization rates.Key words: Implantable cardioverter-defibrillator, Outcomes, sudden cardiac death 相似文献
8.
Pinnaka Anil Kumar Tanuku Naga Radha Srinivas Gupta Vasundhara Vasudeva Gunjan Pydi Sudharani Kashyap Nishant Behera Swarnaprava Ganta Sampath Kumar 《Antonie van Leeuwenhoek》2021,114(7):1117-1130
Antonie van Leeuwenhoek - A novel Gram-staining-negative, rod-shaped, 0.6–0.8 µm wide and 2.0–3.0 µm in length, motile bacterium designated strain AK62T, was... 相似文献
1