1.Nicardipine vs labetalol in treating acute and severe hypertension
Chinese Journal of New Drugs and Clinical Remedies 2001;20(3):182-184
AIM: To compare the therapeutic effects and adverse reactions of nicardipine and labetalol injection in treating acute and severe hypertensions. METHODS: Sixty-seven patients in nicardipine group (M 46, F 21; age 52 a± s 11 a) were given nicardipine 2 mg in 0.9 % sodium chloride or 5 % glucose injection 10 mL within 2 min iv, first, and then given 30 mg nicardipine in 0.9 % sodium chlocide or 5 % glucose injection 250 mL by continual intravenous infusion for 6 h. Sixty-one patients in labetalol group (M 41, F 20; age 53 a±9 a) received 50 mg labetalol in 5 % glucose injection 20 mL by intravenous once. The treatment could be repeated every 15 min, in case it was less effective, but the total dose should be no more than 200 mg. RESULTS: The treatment for the nicardipine group and the labetalol group, reached the marked effect within 5 min. The total marked effective rate was all 100 % (P>0.05). Severe adverse reactions occured in the two patients (one occured significantly lowering of blood pressure, and the other aggravated asthma) in the labetalol group. CONCLUSION: Intravenous nicardipine and labetalol are fast and smooth in reducing the blood pressure of the patients with acute and severe hypertension, but the safety of nicardipine is superior to that of labetalol
2.Changes of arterial ultrastructure and reaction of potassium channels in smooth muscle in aged rats
Hualing SUN ; Lijun SHI ; Li LI ; Xiaodong LIU
Chinese Journal of Tissue Engineering Research 2013;(41):7228-7234
BACKGROUND:Potassium channel is the main ion channel to regulate vascular smooth muscle contraction and relaxation, and closely related with vascular tone. However, the reports about the mechanism of potassium channels in the body’s aging process are rare. OBJECTIVE:To investigate the effects of aging on the arterial ultrastructure and smooth muscle potassium channel reaction, and then to explore the possible mechanisms. METHODS:Sixteen healthy male Wistar rats were col ected, 19-month-old rats were assigned to the old group (n=8), 2-month-old rats were used as young group (n=8). The thoracic arteries were isolated and cut into rings to conduct contractility measurement in six rats of each group. The thoracic arteries were stimulated with specific calcium-activated potassium channel blocker tetraethylammonium, specific voltage-dependent potassium channel blocker 4-aminopyridine, specific ATP-sensitive potassium channel blocker glibenclamide, and specific inward rectifier potassium channel blocker BaCl 2 ultrastructure changes under electron microscope. , and then the arterial contractile response to the blockers were observed. The thoracic arteries of the remaining two rats in each group were taken to observe the arterial RESULTS AND CONCLUSION:Compared with the young group, the ultrastructures of the thoracic aortic endothelial cells and smooth muscle cells were changed in the old group;KCI induced the maximum thoracic aortic contractile tension, and then recovered to the baseline tension, and the recovery time in the old group was significantly longer than that in the young group;al the four kinds of blockers could increase vascular tone, and the tetraethylammonium and 4-aminopyridine induced thoracic aortic contractile response in the old group was significantly lower than that in the young group;there was no significant difference in vasoconstriction induced by glibenclamide and BaCl 2 . Aging can induce arterial ultrastructure changes and declination of vasodilatation capacity, which may partly due to the decreasing of the potassium channels function in smooth muscle cells, especial y the calcium-activated potassium channel and inward rectifier potassium channel.
3.Enrichment and Separation of Y(Ⅲ) from Dilute Solutions Using Aliquat 336 Functionalized Chelating Adsorbent Derived from Chitosan
Hongmin CUI ; Ji CHEN ; Hualing YANG ; Wei WANG ; Yu LIU ; Yuefeng DENG ; Dongli ZHANG
Chinese Journal of Analytical Chemistry 2014;(3):446-451
Aliquat 336 functionalized chelating adsorbent derived from chitosan for enrichment and separation of Y(Ⅲ) were investigated by static adsorption method. The adsorption of Y(Ⅲ) was greatly influenced by the pH of solution, and reached maximum at 20 ℃ using 90 mg/L Y(Ⅲ) at pH 4. 9, and the adsorption of Y(Ⅲ) followed a pseudo-second-order kinetics model and the Langmuir isotherm model. The reduction of Y(Ⅲ) adsorption with the increasing of temperature meant that the adsorption process was exothermic. XPS analysis demonstrated that both cations and anions of the adsorbent were involved in adsorption process, thereby resulting in an improved adsorption of Y(Ⅲ). The adsorbent was thus efficient for enrichment and separation of rare earths from waste rare earth phosphor.
4. Changes and significances of vascular endothelial cadherin, procalcitonin in serum and cerebrospinal fluid of children with viral encephalitis or bacterial meningitis
Kaixian DU ; Hualing ZHANG ; Manman LI ; Tianming JIA ; Yan DONG ; Jing GUAN ; Lin LI ; Mengying LIU
Chinese Journal of Applied Clinical Pediatrics 2019;34(18):1407-1410
Objective:
To investigate the changes and clinical significance of vascular endothelial (VE)-cadherin and procalcitonin (PCT) in serum and cerebrospinal fluid (CSF) of children with viral encephalitis or bacterial meningitis(BM).
Methods:
A total of 42 cases of children with viral encephalitis(viral encephalitis group), 36 cases of children with BM(BM group), and 20 cases of children with non-nervous system injury(control group) were selected from September 2016 to June 2018 at the Third Hospital of Zhengzhou University.The serum and CSF levels of VE-cadherin and PCT levels of the 3 groups were detected by using enzyme-linked immunosorbent assay.
Results:
The levels of VE-cadherin in the serum of viral encephalitis group, BM group and control group at the acute phase were (5.60±1.17) mg/L, (7.08±1.01) mg/L and (2.52±0.68) mg/L respectively, and the levels of VE-cadherin in CSF of viral encephalitis group, BM group and control group were (6.00±1.09) mg/L, (6.97±1.11) mg/L and(1.93±0.88) mg/L, respectively.The levels of PCT in the serum of viral encephalitis group, BM group and control group at the acute phase were (0.26±0.11) μg/L, (0.82±0.17) μg/L and (0.27±0.13) μg/L, respectively, and the levels of PCT in the CSF of viral encephalitis group, BM group and control group were (0.25±0.11) μg/L, (0.72±0.14) μg/L, (0.28±0.17) μg/L, respectively.As a result, the levels of VE-cadherin and PCT in the serum and CSF of BM group showed significant increase, compared with viral encephalitis group and control group in the acute phase(
5.Effect of enteral microecopharmaceutics nutrition supplement on incidence of ventilator associated pneumonia complications in patients with severe traumatic brain injury undergoing ventilator therapy
Junhong ZHUANG ; Hualing LIU ; Shumei ZHENG ; Xinyan WU ; Shuchao CHEN ; Qiangfeng YANG
Chinese Journal of Neuromedicine 2018;17(9):929-933
Objective To investigate the effect of enteral microecopharmaceutics nutrition supplement (EMN) on incidence of ventilator associated pneumonia complications,inflammatory responses,and prognoses in patients with severe traumatic brain injury (sTBI) undergoing ventilator therapy.Methods From January 2016 to September 2017,70 patients with sTBI were randomly divided into an experimental group (EMN supplement,n=35) and a control group (n=35).Early enteral nutrition was given to patients from both groups,and bifidobacterium viable capsule was given to patients from the experimental group.Glasgow Coma Scale (GCS) scores,acute physiological and chronic health evaluation (APACHE) II scores,number of white blood cells (WBC),proportion of neutrophil (N),and serum levels of procalcitonin (PCT) and C-reactive protein (CRP) were compared between the two groups on admission and 14 d after treatment.The incidence of VAP and clinical pulmonary infection scale (CPIS) scores,pulmonary function,mechanical ventilation time and hospital stays were compared 14 d after treatment.Results The incidence of VAP in the experimental group (n=17,51%) 14 d after EMN supplement was significantly lower as compared with that in the control group (n=22,63%,P<0.05).Meanwhile,VAP patients from the experimental group had significantly lower CPIS scores as compared with patients from control group (P<0.05).Ventilator weaning was achieved in 29 patients from experimental group (83%) and 24 patients from control group (69%),with significant difference (P<0.05);ventilator weaning patients from the experimental group had significantly improved lung function as compared with ventilator weaning patients from control group (P<0.05).WBC number,N proportion,and serum PCT and CRP levels in the experimental group were significantly smaller/decreased as compared with those in the control group (P<0.05).As compared with patients from control group,patients from the experimental group had significantly higher GCS scores (8.35±0.51 vs.9.48±0.48,P<0.05) and significantly lower APACHE II scores (12.58±0.78 vs.14.68±0.97,P<0.05).Conclusion EMN supplement can effectively reduce the VAP incidence,alleviate the degree of infection and inflammatory response in patients with sTBI undergoing ventilator therapy,therefore,improve the prognosis;this method is worth of promotion.
6.The application of HPLC-MS/MS for comprehensively monitor the feeding analysis of Yuanhu analgesic capsules
Xiaolin WANG ; Minfeng ZHU ; Chao LIU ; Hualing LUO ; Maohua YUAN ; Fudong ZHANG
International Journal of Traditional Chinese Medicine 2018;40(7):639-644
Objective The HPLC-MS/MS is used to comprehensively monitor the feeding conditions of raw materials in Yuanhu analgesic capsules, and the content of the index components can be detected at the same time. Methods The Inertsil ODS-3 (4.6 mm×250 mm, 5 μm) was used with the column temperature 40 ℃, Flow phase: 0.1% formic acid-acetonitrile; the gradient elution program, active ingredients were separated by HPLC, and the Electrospray Ionization Mass (ESI) source was applied and operated in the negative ion mode, and reactions ion monitoring mode (MRM) for quantitative analysis were selected. Results Through analysis and contrast of the medicinal materials, reference substance of primary mass spectrogram showed the same characteristic peak, and the proprietary Chinese medicine can be judged by prescription feeding process. The tetrahydroxene and imperatorin had a good linear relationship in 5.08×10-5-30.45×10-5μg (r=0.999 4), 5.02×10-5-30.09×10-5μg (r=0.999 2). Precision test were 0.99% and 1.14%, the recovery rate were 97.02%-99.66%, 97.62%-99.94%. Conclusions The method is simple, accurate and reliable, high sensitive and fast. It is suitable to monitor the feeding condition and quality of yuanhu analgesic capsules.
7. Management strategy of Novel coronavirus pneumonia in burn and wound care ward
Ning LI ; Tingmin LIU ; Hualing CHEN ; Jianmei LIAO
Chinese Journal of Burns 2020;36(0):E002-E002
The prevention and control of novel coronavirus pneumonia (NCP) has already entered a key period . The patients treated in the burn and wound care ward are susceptible to viral infection because of disease, age and other factors, so it is very important to manage the burn and wound care ward during the prevention and control of NCP epidemic. In this paper, combining with the key clinical problems of prevention and control in hospital during the epidemic period of NCP infection, medical evidence, and clinical and management experience, the author formulates prevention and control management strategy of the author’s unit in order to provide reference for prevention and control of burn and wound care ward.
8. Changes of Caveolin-1, matrix metalloproteinase-9 and interleukin-1β in cerebrospinal fluid of children with bacterial meningitis or viral encephalitis
Kaixian DU ; Manman LI ; Hualing ZHANG ; Chunlan SONG ; Tianming JIA ; Yan DONG ; Jing GUAN ; Lin LI ; Mengying LIU
Chinese Journal of Applied Clinical Pediatrics 2019;34(10):749-752
Objective:
To investigate the changes and clinical significance of Caveolin-1, matrix metalloproteinase-9(MMP-9) and interleukin-1β(IL-1β)in cerebrospinal fluid of children with bacterial meningitis or viral encephalitis.
Methods:
Thirty-six cases of children with bacterial meningitis, 42 cases of children with viral encephalitis, and 20 cases of children with non-nervous system infection were selected from September 2016 to June 2018 at the Third Affiliated Hospital of Zhengzhou University.The levels of Caveolin-1, MMP-9 and IL-1β in cerebrospinal fluid were detected by using enzyme linked immunosorbent assay(ELISA).
Results:
Cerebrospinal fluid Caveolin-1, MMP-9 , IL-1β levels in the acute phase of bacterial meningitis were(49.06±8.96) ng/L, (134.79±18.88) μg/L, (100.02±14.67) μg/L, respectively, and (29.13±7.25) ng/L, (18.69±7.23) μg/L, (47.57±8.95) μg/L in recovery phase, which were higher than those of the controls[(11.18±2.24) ng/L, (11.53±3.54) μg/L, (39.75±7.08) μg/L)], and the differences were significant (all