1. Capillary electrophoresis coupled with electrochemiluminescence for determination of cloperastine hydrochloride
Academic Journal of Xi'an Jiaotong University 2008;20(4):274-277
Objective: To investigate the electrochemiluminescence (ECL) behavior of cloperastine hydrochloride. Methods: ECL intensity of tris (2,2′-bipyridyl) rutheniumo(II) was enhanced, the method for the determination of cloperastine hydrochloride was established using capillary electrophoresis (CE) coupled with electrochemilumolinescence (ECL) detection. Results: Under the optimum conditions, ECL intensity varied linearly with cloperastine hydrochloride concentration from 7.0 × 10-6g/mL to 1.0 × 10-4g/mL. The detection limit (S/N=3) was 8.05 × 10-7 g/mL. The relative standard deviation of the ECL intensity and the migration time for 11 consecutive iajections of 1.0 × 10-5 g/mL cloperastine hydrochloride was 2.9% and 1.5%, respectively. This method was successfully applied to cloperastine hydrochloride tablet determination. Conclusion: The method has been established, validated and applied for determination of cloperastine hydrochloride.
2. Capillary electrophoresis coupled with electrochemiluminescence for determination of cloperastine hydrochloride
Academic Journal of Xi'an Jiaotong University ;20(4):274-277
Objective: To investigate the electrochemiluminescence (ECL) behavior of cloperastine hydrochloride. Methods: ECL intensity of tris (2,2′-bipyridyl) rutheniumo(II) was enhanced, the method for the determination of cloperastine hydrochloride was established using capillary electrophoresis (CE) coupled with electrochemilumolinescence (ECL) detection. Results: Under the optimum conditions, ECL intensity varied linearly with cloperastine hydrochloride concentration from 7.0 × 10-6g/mL to 1.0 × 10-4g/mL. The detection limit (S/N=3) was 8.05 × 10-7 g/mL. The relative standard deviation of the ECL intensity and the migration time for 11 consecutive iajections of 1.0 × 10-5 g/mL cloperastine hydrochloride was 2.9% and 1.5%, respectively. This method was successfully applied to cloperastine hydrochloride tablet determination. Conclusion: The method has been established, validated and applied for determination of cloperastine hydrochloride.
3.Interaction of Flightless I with Nup88 and Importin β.
Shengyou LIAO ; Cuihua WANG ; Dong'e TANG ; Jinmei WEI ; Yujiao HE ; Haiting XIONG ; Fengmei XU ; Xuejuan GAO ; Xiaohui LIU ; Langxia LIU
Chinese Journal of Biotechnology 2015;31(8):1247-1254
High expression of Fightless I (FLII) is associated to multiple tumors. Based on our previous study that FLII might be involved in the nuclear export, we assessed the possible interaction of FLII with the nuclear envelop associating proteins Importin β and Nup88. We first constructed GST-FLII, GST-LRR recombinant plasmids and transformed them into the Rosetta strain to produce GST-FLII, GST-LRR fusion protein. After purification of these proteins, GST-pull down, as well as co-immunoprecipitation, were used to test the interaction of FLII with Importin β and Nup88. FLII interacted with Importin β and Nup88, and FLII LRR domain is responsible for these interactions. Thus, FLII may play a role in nuclear export through interaction with Importin β and Nup88.
Humans
;
Microfilament Proteins
;
metabolism
;
Nuclear Pore Complex Proteins
;
metabolism
;
Receptors, Cytoplasmic and Nuclear
;
metabolism
;
Recombinant Fusion Proteins
;
metabolism
;
beta Karyopherins
;
metabolism
4.Resveratrol alleviates Kawasaki disease-induced myocardial injury via inhibition of apoptosis and autophagy.
Fengmei XIONG ; Ruiping LIU ; Huanli GUO ; Dongmei WU ; Na SUN
Journal of Central South University(Medical Sciences) 2021;46(10):1102-1108
OBJECTIVES:
To explore the effect of resveratrol (Res) on Kawasaki disease (KD)-induced myocardial injury and to evaluate its effect on apoptosis and autophagy.
METHODS:
Forty-eight juvenile male Sprague Dawley rats were randomly divided into a control group, a Res group, a lactobacillus casei cell wall extract (LCWE)-induced Kawasaki disease group (KD group), and a LCWE-induced Kawasaki disease + Res treatment group (Res+KD group). The control group was intraperitoneally injected with saline. The Res group was intraperitoneally injected with resveratrol (100 mg/kg). The KD group was intraperitoneally injected with 0.5 mL LCWE (1 mg/mL). The Res+KD group was intraperitoneally injected with 0.5 mL LCWE (1 mg/mL) and resveratrol (100 mg/kg). After 4 weeks, the left ventricular ejection fraction (LVEF) and short axis shortening rate (LVFS) were detected by echocardiography. The apoptotic rate was detected by terminal-deoxynucleoitidyl transferase mediated nick end labeling (TUNEL) staining. The levels of B-cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), microtubule-associated protein 1 light chain 3β (LC3B), Beclin-1, autophagy related 5 (Atg5) and sequestosome-1 (p62) were detected by Western blotting. The formation of autophagosome was observed under transmission electron microscope.
RESULTS:
There was no significant difference in the above-mentioned indexes between the control group and the Res group (all
CONCLUSIONS
Res can attenuate the KD-induced myocardial injury via inhibiting the apoptosis and autophagy.
Animals
;
Apoptosis
;
Autophagy
;
Male
;
Mucocutaneous Lymph Node Syndrome/drug therapy*
;
Rats
;
Rats, Sprague-Dawley
;
Resveratrol/therapeutic use*
;
Stroke Volume
;
Ventricular Function, Left