紫萁贯众中鞣质的含量测定

目的建立紫萁贯众中鞣质的含量测定方法,比较不同产地和不同采收期紫萁贯众中鞣质的含量。方法采用磷钼钨酸一干酪素法显色,分光光度法在760nm处测定。结果12个不同产地紫萁贯众中鞣质的含量为0．14％～3．20％,同产地不同采收期紫萁贯众中鞣质的含量为1．05％～2．58％。结论紫萁贯众中鞣质的含量因产地和采收期变化而不同。     

Dual IKZF2 and CK1α degrader targets acute myeloid leukemia cells

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Do PACS1 variants impeding adaptor protein binding predispose to syndromic intellectual disability?

To date, PACS1-neurodevelopmental disorder (PACS1-NDD) has been associated with recurrent variation of Arg203 and is considered diagnostic of PACS1-NDD, an autosomal dominant syndromic intellectual disability disorder. Although incompletely defined, the proposed disease mechanism for this variant is altered PACS1 affinity for its client proteins. Given this proposed mechanism, we hypothesized that PACS1 variants that interfere with binding of adaptor proteins might also give rise to syndromic intellectual disability. Herein, we report a proposita and her mother with phenotypic features overlapping PACS1-NDD and a novel PACS1 variant (NM_018026.3:c.[755C > T];[=], p.(Ser252Phe)) that impedes binding of the adaptor protein GGA3 (Golgi-associated, gamma-adaptin ear-containing, ARF-binding protein 3). We hypothesize that attenuating PACS1 binding of GGA3 also gives rise to a disorder with features overlapping those of PACS1-NDD. This observation better delineates the mechanism by which PACS1 variation predisposes to syndromic intellectual disability.