Objective To study the perioperative nursing methods in patients with OSAHS and type 2 diabetes mellitus.Methods From March 2009 to December 2010,a total of 46 patients with OSAHS and type 2 diabetes mellitus were randomly divided into the control group and the experimental group with 23 cases in each group.Conventional care was given to the control group,while the experimental group received systematic,phased and individualized nursing.The sleep quality before and after the operation was compared.The oropharynx wound healing and possible complications,pain were observed after operation.Results In the control group,there was one patient with bleeding during operation,one patient happened blood lost after operation and 2 patients had postoperative infection.The hyperglycemia was found in 3 patients and hypoglycemia occurred in 2 patients.But in the experimental group,all of the patients did not suffer complication.The scores of sleep quality on the day before surgery were significantly higher than those scores on admission,and the scores on discharge from hospital were significantly lower than those scores on admission.There were statistical differences.The scores of the experimental group were significantly improved compared to those of the control group.The score of pain was the highest at the day of surgery,and then gradually decreased.The score of pain of the experimental group was significantly lower than that of the control group,and the difference was statistically significant.Conclusions This comprehensive nursing method during operation period for patients with OSAHS and type 2 diabetes mellitus not only can reduce risk of postoperative complication,but also can improve operation efficacy,quality of nursing and life quality of patients as well as can speed recovery.It approved that this standardized,systematic nursing method during the whole period is practical and effective in OSAHS and type 2 diabetes mellitus treatment and care.

OBJECTIVETo study the effect of different water stress mode on photosynthesis characteristics of Aconitum barbaturnm, aimed at providing the theoretical basis for cultivating this kind of plant for the arid area.

METHODThe transplanted seedlings of A. barbatum were processed with fixed partial root zone drying(TI) ,alternate partial root zone drying(T2) and both partial root zone irrigation (T3) for three cycles,and relative parameters were measured.

RESULTThe net photosynthetic rate (Pn) in the treatment of T2 gradually increased and was higher than that in the treatment of T3 about 6.53%, mainly effected by non-stomatal factors. The water use efficiency (WUE) was higher than that in the treatments of T3 about 25.21%, while the transpiration rate (Tr) and the stomatal conductance was lower than those in the treatment of T1 and T3 separately. The maximum net photosynthesis rate (Pmax),the apparent quantum yield (AQY) and the dark respiration rate (Rd) were higher than those in comparison condition slightly.

CONCLUSIONThe alternate partial root zone drying is worth promoting vigorously, and it shall be a rational way to cultivate the A. barbatum under woodland.

Aconitum ; physiology ; Dehydration ; Photosynthesis ; physiology ; Plant Roots ; physiology ; Plant Stomata ; physiology ; Plant Transpiration ; physiology ; Seedlings ; physiology

Arabidopsis BOTRYTIS-INDUCED KINASE1 (BIK1) is a receptor-like cytoplasmic kinase acting early in multiple signaling pathways important for plant growth and innate immunity. It is known to form a signaling complex with a cell-surface receptor FLS2 and a co-receptor kinase BAK1 to transduce signals upon perception of pathogen-associated molecular patterns (PAMPs). Although site-specific phosphorylation is speculated to mediate the activation and function of BIK1, few studies have been devoted to complete profiling of BIK1 phosphorylation residues. Here, we identified nineteen in vitro autophosphorylation sites of BIK1 including three phosphotyrosine sites, thereby proving BIK1 is a dual-specificity kinase for the first time. The kinase activity of BIK1 substitution mutants were explicitly assessed using quantitative mass spectrometry (MS). Thr-237, Thr-242 and Tyr-250 were found to most significantly affect BIK1 activity in autophosphorylation and phosphorylation of BAK1 in vitro. A structural model of BIK1 was built to further illustrate the molecular functions of specific phosphorylation residues. We also mapped new sites of FLS2 phosphorylation by BIK1, which are different from those by BAK1. These in vitro results could provide new hypotheses for more in-depth in vivo studies leading to deeper understanding of how phosphorylation contributes to BIK1 activation and mediates downstream signaling specificity.
Amino Acids ; chemistry ; Arabidopsis ; enzymology ; Arabidopsis Proteins ; chemistry ; genetics ; isolation & purification ; Gene Expression Regulation, Plant ; Immunity, Innate ; Mutation ; Phosphorylation ; Protein-Serine-Threonine Kinases ; chemistry ; genetics ; isolation & purification ; Signal Transduction ; Threonine ; genetics

Endocrine-resistance remains a major challenge in estrogen receptor α positive (ERα⁺) breast cancer (BC) treatment and constitutively active somatic mutations in ERα are a common mechanism. There is an urgent need to develop novel drugs with new mode of mechanism to fight endocrine-resistance. Given aberrant ERα activity, we herein report the identification of novel covalent selective estrogen receptor degraders (cSERDs) possessing the advantages of both covalent and degradation strategies. A highly potent cSERD 29c was identified with superior anti-proliferative activity than fulvestrant against a panel of ERα⁺ breast cancer cell lines including mutant ERα. Crystal structure of ERα‒ 29c complex alongside intact mass spectrometry revealed that 29c disrupted ERα protein homeostasis through covalent targeting C530 and strong hydrophobic interaction collied on H11, thus enforcing a unique antagonist conformation and driving the ERα degradation. These significant effects of the cSERD on ERα homeostasis, unlike typical ERα degraders that occur directly via long side chains perturbing the morphology of H12, demonstrating a distinct mechanism of action (MoA). In vivo, 29c showed potent antitumor activity in MCF-7 tumor xenograft models and low toxicity. This proof-of-principle study verifies that novel cSERDs offering new opportunities for the development of innovative therapies for endocrine-resistant BC.