1.Study on the stability and compatibility of butorphanol,nicardipine,urapidil and tirofiban administered via micro-infusion pump
Xiaoyu ZHAO ; Shuyi DUAN ; Xuna AN ; Liting ZHANG ; Liju FAN ; Jing AN ; Zhanjun DONG
China Pharmacy 2026;37(12):1626-1630
OBJECTIVE To investigate the stability and compatibility of butorphanol, nicardipine, urapidil, and tirofiban. METHODS A micro-infusion pump was used to simulate the infusion process. Samples were collected in real time from the needle tip at 0, 2, 4, 6, and 8 h after mixing of the four drugs. The appearance, pH, and number of insoluble particles were examined. The contents of butorphanol, nicardipine, urapidil, and tirofiban were determined using the ultra-high-performance liquid chromatography method. RESULTS Within 8 hours, all mixed solutions remained clear and transparent, with no visible turbidity, precipitation, color change, or gas generation. The pH fluctuation ranged from 0.02 to 0.09, both within 0.1 pH units. The number of insoluble particles ≥10 μm in size in each compatibility solution was ≤9, and the number of insoluble particles ≥25 μm was ≤2, meeting the requirements of the 2025 edition of the Chinese Pharmacopoeia (Volume Ⅳ). The relative percentage contents of butorphanol, nicardipine, urapidil, and tirofiban at 8 hours after compatibility mixing ranged from 92.38% to 113.40%. CONCLUSIONS Within 8 hours under simulated clinical micro-infusion pump infusion conditions, the stability and compatibility of the mixed solution containing butorphanol, nicardipine, urapidil, and tirofiban were satisfactory.
2.Heterozygous CARD9 mutation favors the development of allergic bronchopulmonary aspergillosis.
Xia XU ; Haiwen LU ; Jianxiong LI ; Jielin DUAN ; Zhongwei WANG ; Jiawei YANG ; Shuyi GU ; Rongguang LUO ; Shuo LIANG ; Wei TANG ; Fengying ZHANG ; Jingqing HANG ; Juan GE ; Xin LIN ; Jieming QU ; Xinming JIA ; Jinfu XU
Chinese Medical Journal 2023;136(16):1949-1958
BACKGROUND:
Previous research demonstrated that a homozygous mutation of g.136372044G>A (S12N) in caspase recruitment domain family member 9 ( CARD9 ) is critical for producing Aspergillus fumigatus -induced ( Af -induced) T helper 2 (T H 2)-mediated responses in allergic bronchopulmonary aspergillosis (ABPA). However, it remains unclear whether the CARD9S12N mutation, especially the heterozygous occurrence, predisposes the host to ABPA.
METHODS:
A total of 61 ABPA patients and 264 controls (including 156 healthy controls and 108 asthma patients) were recruited for sequencing the CARD9 locus to clarify whether patients with this heterozygous single-nucleotide polymorphisms are predisposed to the development of ABPA. A series of in vivo and in vitro experiments, such as quantitative real-time polymerase chain reaction, flow cytometry, and RNA isolation and quantification, were used to illuminate the involved mechanism of the disease.
RESULTS:
The presence of the p.S12N mutation was associated with a significant risk of ABPA in ABPA patients when compared with healthy controls and asthma patients, regardless of Aspergillus sensitivity. Relative to healthy controls without relevant allergies, the mutation of p.S12N was associated with a significant risk of ABPA (OR: 2.69 and 4.17 for GA and AA genotypes, P = 0.003 and 0.029, respectively). Compared with patients with asthma, ABPA patients had a significantly higher heterozygous mutation (GA genotype), indicating that p.S12N might be a significant ABPA-susceptibility locus ( aspergillus sensitized asthma: OR: 3.02, P = 0.009; aspergillus unsensitized asthma: OR: 2.94, P = 0.005). The mutant allele was preferentially expressed in ABPA patients with heterozygous CARD9S12N , which contributes to its functional alterations to facilitate Af -induced T H 2-mediated ABPA development. In terms of mechanism, Card9 wild-type ( Card9WT ) expression levels decreased significantly due to Af -induced decay of its messenger RNA compared to the heterozygous Card9S12N . In addition, ABPA patients with heterozygous CARD9S12N had increased Af -induced interleukin-5 production.
CONCLUSION
Our study provides the genetic evidence showing that the heterozygous mutation of CARD9S12N , followed by allele expression imbalance of CARD9S12N , facilitates the development of ABPA.
Humans
;
Aspergillosis, Allergic Bronchopulmonary/complications*
;
Aspergillus fumigatus/genetics*
;
Asthma/genetics*
;
Aspergillus
;
Mutation/genetics*
;
CARD Signaling Adaptor Proteins/genetics*
3.Combination of kidney transplantation with hematopoietic stem cell infusion
Yongchao GE ; Zhiyu WANG ; Xiaowu ZHAO ; Shuyi WU ; Li ZAHNG ; Jinshun FENG ; Kun DUAN ; Shilin CHEN ; Quanxi GUO ; Tao ZHENG ; Baodong CHANG ; Zhihao YUAN ; Fen QIN
Chinese Journal of General Practitioners 2012;(12):934-936
Ninety six female patients with chronic renal failure were randomly allocated into combination group (n =48) and control group (n =48).In combination group patients received both kidney transplantation and hematopoietic stem cell infusion,in control group patients underwent kidney transplantation only.The results showed that chronic rejection in the combination group was lower than that in the control group [2%(1/48)vs.17% (8/48),P<0.05)].The 1-,3-,5-and 10 y-survival rates of kidney in the combination group were 98% (47/48),94% (45/48),83% (34/41) and 9/17,respectively,those in control group were 98% (47/48),90% (43/48),76% (31/41) and 7/17,respectively.Infusion of donor hematopoietic stem cells can augment chimerism in early postoperative period and significantly reduce the rate of graft rejection,which is beneficial for the quality of life of the recipients.
4.Transforming growth factor-α promotes mouse blastocyst outgrowth and secretion of matrix metalloproteinases
Shuyi CHEN ; Yujing CAO ; Guoqing ZENG ; Enkui DUAN
Chinese Medical Journal 2001;114(12):1300-1304
Objective To study the effect of transforming growth factor-α (TGF-α) on early stage of embryo implantation.Methods Mouse blastocysts were cultured in vitro in medium containing various concentrations of TGF-α. Blastocyst implantation capacity was evaluated by calculating the percentage of embryos with attachment or outgrowth. Matrix metalloproteinases (MMPs) secretion of blastocysts was observed using gelatin zymography. Results There was no significant difference in the percentage of attachment between control and TGF-α treated groups, but the percentage of outgrowth of TGF-α treated groups was significantly higher than that of the control group after 24h culturing. Gelatin zymography showed that blastocysts cultured in TGF-α treated groups started secreting MMPs earlier than those in the control group.Conclusion TGF-α is involved in regulating the mouse embryo implantation process by promoting blastocyst outgrowth and secreting matrix matalloproteinases.

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