摘要:
Methods for identifying age-preventing agents for skin is disclosed. Skin samples are transferred to a first vessel, a second vessel, and a third vessel. A skin age inducing agent is applied to the skin samples in the first vessel and the second vessel. A prospective age-preventing agent is applied to the skin sample in the first vessel. Genetic material is extracted from the skin samples in the first vessel, the second vessel and the third vessel. A quantity of a skin age biomarker is measured in the extracted genetic material from each vessel. A score is determined for the skin samples in the first vessel, the second vessel and the third vessel based on the quantity of skin age biomarker measured in the genetic material extracted from the skin sample in each vessel, wherein the score is indicative of a condition of the skin sample.
摘要:
Disclosed are high concentration reagents for use in preparing DNA samples in low volume reactions. Such reagents include, for example, DNA end repair buffers for use in low volume DNA blunting and phosphorylating reactions, DNA adenylating buffers for use in a low volume DNA adenylating reaction, and DNA ligation buffers for use in low volume DNA adaptor ligation reactions with adaptors. Also disclosed are customized reagent plates and kits containing one or more of these low volume buffers for use in low volume DNA blunting, phosphorylating, adenylating, and ligation reactions. Methods of using the high concentration reagents (low volume buffers) and the customized reagent plates for preparing DNA sequencing libraries in low volume reactions are also disclosed.
摘要:
This invention pertains to labeled components of a guide RNA complex as part of the CRISPR/Cas9 editing complex in order to detect and visualize successful delivery of the CRISPR/Cas9 editing complex.
摘要:
The invention encompasses methods for increasing genetic progress in livestock, and for genetic dissemination, including the use of amniocentesis to obtain fetal amniocytes for use in genomic evaluation and cloning.
摘要:
The disclosure includes methods of determining the activity of an inhibitor of a target microRNA (miRNA) or of a mimic of a target microRNA. Determination of polysome occupancy in treated and control samples followed by comparing the occupancies can be used to determine a displacement value for the inhibitor or mimic of the target miRNA. The displacement value reflects the extent of a change in the levels of the target miRNA (which may include the mimic if applicable) in polysomal and non-polysomal compartments of a sample or a shift of the target miRNA between polysomal and non-polysomal compartments of a sample and can indicate the activity of the inhibitor toward the target miRNA or of the mimic toward a target RNA.
摘要:
The invention relates to the identification and the use of compounds which activate the expression or activity of uc.291 for improving skin barrier function, and/or for preventing and/or attenuating ageing, and/or for hydrating skin. The invention thus relates to an in vitro method for screening for candidate compounds for improving skin barrier function, and/or for preventing and/or attenuating ageing of the skin, and/or for hydrating the skin, comprising the following steps: a. bringing at least one test compound in contact with a sample of keratinocytes; b. measuring the expression or the activity of uc.291 in said keratinocytes; c. selecting the compounds for which an activation of at least 20%, preferably at least 30%, preferably at least 40 % of the expression or an activation of at least 20%, preferably at least 30%, preferably at least 40 % of the activity of uc.291 is measured in the keratinocytes treated in a. compared with the untreated keratinocytes.
摘要:
Some aspects of the present disclosure provide methods for evolving recombinases to recognize target sequences that differ from the canonical recognition sequences. Some aspects of this disclosure provide evolved recombinases, e.g., recombinases that bind and recombine naturally-occurring target sequences, such as, e.g., target sequences within the human Rosa26 locus. Methods for using such recombinases for genetically engineering nucleic acid molecules in vitro and in vivo are also provided. Some aspects of this disclosure also provide libraries and screening methods for assessing the target site preferences of recombinases, as well as methods for selecting recombinases that bind and recombine a non- canonical target sequence with high specificity.