1.Research progress in the experiments about treatment for kidney diseases with Diaphragma Juglandis Fructus extract
Junshao ZHANG ; Mingzhi XIAO ; Xinxin PANG ; Di NIU ; Ruifang CHEN
International Journal of Traditional Chinese Medicine 2025;47(10):1489-1492,F4
In the study of kidney ischemia-reperfusion injury, rhabdomyolysis induced kidney injury, hyperuricemia induced kidney injury and other diseases, Diaphragma Juglandis Fructus extract has shown various pharmacological effects such as lowering uric acid, anti-inflammatory, anti-tumor, sedative and sedative effects. It can improve kidney function by reducing inflammatory response, inhibiting oxidative stress, regulating related enzyme activity and other mechanisms. At the same time, Diaphragma Juglandis Fructus extract also has hypoglycemic and lipid-lowering effects, which can regulate glucose and lipid metabolism, inhibit inflammatory reaction, and reduce oxidative stress. It has potential application prospects in the treatment of diabetes nephropathy. At present, current research is mostly focused on animal and cellular experiment levels. Although certain achievements have been made, further clinical research is still needed to clarify its effectiveness and safety in the human body, and to further explore the active components to promote its application in the treatment of kidney diseases in clinical practice.
2.Preparation and in Vitro Evaluation of a Self-Microemulsifying Drug Delivery System for Insoluble Drug Nebivolol Hydrochloride
Mingzhi XU ; Yucheng CHEN ; Tingyu XIAO ; Lili HUANG ; Huaqing LIN
Chinese Journal of Modern Applied Pharmacy 2024;41(9):1214-1221
OBJECTIVE
To prepare a self-microemulsifying drug delivery system(SMEDDS) for the oral administration of nebivolol hydrochloride(NBH) and to conduct in vitro evaluation.
METHODS
The solubility of NBH was determined using various oil phases, surfactants, and co-surfactants. The composition of the blank self-microemulsifying formulation was determined using pseudo-ternary phase diagrams. A centralcomposite design-response surface method was employed to screen and optimize the formulation variables, and an excess amount of NBH raw material was incorporated to determine the drug loading capacity.
RESULTS
The optimized composition of the NBH-SMEDDS formulation consisted of medium-chain glycerides, capryl caproyl macrogol glycerides, and 2-(2-ethoxyethoxy) ethyl acetate at a ratio of 20∶48∶32, with a drug loading capacity of 20.05 mg. The particle size, self-emulsification time, and particle size distribution range of the formulation were in agreement with the predicted values. Dissolution testing demonstrated that the overall dissolution trend of NBH-SMEDDS in the medium was higher than that of NBH powder and NBH ordinary tablet. The stability of NBH-SMEDDS was found to be satisfactory under accelerated conditions for 1, 2, and 3 months.
CONCLUSION
The SMEDDS shows potential for enhancing the in vitro dissolution of NBH and demonstrates good stability.
3.Identification of a COL2A1 mutation in a Chinese family with Stickler syndrome type 1 via whole exome sequencing
Fang DENG ; Yingjie CAO ; Lijing XIE ; Shaowan CHEN ; Xiaoqiang XIAO ; Mingzhi ZHANG
Chinese Journal of Experimental Ophthalmology 2022;40(10):935-939
Objective:To identify the disease-causing mutation in a Chinese family with Stickler syndrome type 1.Methods:The pedigree investigation was conducted.A Chinese family with Stickler syndrome type 1 was enrolled in the Shantou International Eye Center in June 2012.Medical history collection and clinical examinations, such as vision, intraocular pressure, slit lamp microscopy and fundus, were carried out in all the included family members and the diagnosis was made by clinical experts.Total genomic DNAs were extracted from the peripheral blood samples (5 ml) obtained from 5 patients and 4 healthy members.The potential variant of the proband's father Ⅲ-5 were screened by whole exome sequencing (WES) and stepwise bioinformatic analysis.The segregation and mutation conformation of the variant was verified by Sanger sequencing.The pathogenicity of the variant was predicted by SIFT, Polyphen2, and MutationTaster.Conservation and three-dimensional structure of amino acid mutation were analyzed by multiple sequence alignment and UniProt.This study adhered to the Declaration of Helsinki.The study protocol was approved by the Ethics Committee of Joint Shantou International Eye Center (No.EC20110310[2]-P02).Written informed consent was obtained from each subject or the guardian.Results:An autosomal dominant inherence in 39 members of 4 generations including 15 patients and 24 phenotypically normal members was found in the family.The proband (Ⅳ-4) showed high myopia, retinal detachment and strabismus in the right eye, and the left eye was blind.A patient (Ⅲ-5) showed high myopia and cataract in the right eye, atrophy in the left eye.A patient (Ⅳ-9) showed binocular high myopia.A heterozygous variation, c.1693C>T: p.Arg565Cys, within the exon 26 of COL2A1 gene was revealed in patient Ⅲ-5, which was only found in the patients and not in phenotypically normal members, indiacating co-separation in this family.The variant was predicted to be a severe damage by SIFT, Polyphen2 and MutationTaster.The amino acid mutation at position 565 was highly conservative among human, mouse, rat, bovine and Xenopus laevis, which caused the arginine to cysteine substitution at the X position in triple helix repeat region Gly-X-Y, affecting the function of fibrous protein and becoming pathogenic. Conclusions:Variant c.1693C>T: p.Arg565Cys in COL2A1 gene is disease-causing in this family and this is the first report about the variant in China.
4.Anti-tumor effect of histone deacetylase inhibitors
Sa XIAO ; Ling LI ; Mingzhi ZHANG
Journal of International Oncology 2017;44(10):754-757
Histone deacetylase (HDAC) is a kind of protease,which plays an important role in the structural modification of chromosomes and the regulation of gene expression.Its excessive expression in cancer cells causes acetylation imbalance,which is closely related to the occurrence of tumor.The high efficiency and low toxicity of histone deacetylase inhibitor (HDACi) has been widely recognized as anti-tumor drug with the deepening of the study in epigenetics.It is expected to bring more breakthroughs in the treatment of tumor.
5.A multicenter study of rituximab-based regimen as first-line treatment in patients with follicular lymphoma.
Jianqiu WU ; Yongping SONG ; Liping SU ; Mingzhi ZHANG ; Wei LI ; Yu HU ; Xiaohong ZHANG ; Yuhuan GAO ; Zuoxing NIU ; Ru FENG ; Wei WANG ; Jiewen PENG ; Xiaolin LI ; Xuenong OUYANG ; Changping WU ; Weijing ZHANG ; Yun ZENG ; Zhen XIAO ; Yingmin LIANG ; Yongzhi ZHUANG ; Jishi WANG ; Zimin SUN ; Hai BAI ; Tongjian CUI ; Jifeng FENG
Chinese Journal of Hematology 2014;35(5):456-458
6.Clinical features of rituximab plus chemotherapy as first-line treatment in patients with diffuse large B-cell lymphoma.
Jifeng FENG ; Jianqiu WU ; Yongping SONG ; Liping SU ; Mingzhi ZHANG ; Wei LI ; Yu HU ; Xiaohong ZHANG ; Yuhuan GAO ; Zuoxing NIU ; Ru FENG ; Wei WANG ; Jiewen PENG ; Xuenong OUYANG ; Xiaolin LI ; Changping WU ; Weijing ZHANG ; Yun ZENG ; Zhen XIAO ; Yingmin LIANG ; Yongzhi ZHUANG ; Jishi WANG ; Zimin SUN ; Hai BAI ; Tongjian CUI
Chinese Journal of Hematology 2014;35(4):309-313
OBJECTIVEA prospective, multicenter and non-interventional prospective study was conducted to evaluate the clinical features of rituximab combined with chemotherapy (R-Chemo) as first-line treatment on newly diagnosed Chinese patients with diffuse large B-cell lymphoma (DLBCL).
METHODSThis was a single arm, prospective, observational multicenter and phase IV clinical trial for 279 patients, who were newly diagnosed as CD20-positive DLBCL from 24 medical centers in China 2011 and 2012, no special exclusion criteria were used. All patients received rituximab based R-Chemo regimes, such as R-CHOP (rituximab plus cyclophosphamide, doxorubicin, vincristine and prednisolone) and other regimes as the first-line treatment. The treatment strategies were determined by physicians and patients without detailed description for treatment course, dose, interval time and examination. Clinical response and safety of all patients were investigated in 120 days after completion of last dose of rituximab.
RESULTSOf 279 patients, 258 with stage I-IV who received at least 1 cycle of rituximab treatment and completed at least one time of tumor assessment were enrolled into intention-to-treat analysis, including 148 male and 110 female. The median age of all patients was 57.2(12.8-88.4) years. ECOG performance statuses of 0 or 1 were observed in 91.1% of patients, international prognostic index levels in the low-risk and low-middle-risk groups in 76.4% of patients, the tumor diameters smaller than 7.5 cm in 69.0% of patients. All patients received 6 median cycles of R-Chemo treatment every 24.4 days. R-CHOP treatment was shown to improve the clinical response with overall response rates of 94.2%. Common adverse events included anemia, marrow failure, leukopenia, thrombocytopenia, digestive diseases, infection and liver toxicity. All adverse events are manageable.
CONCLUSIONNon-interventional clinical trial of R-Chemo remains the standard first-line treatment for newly diagnosed patients with DLBCL in real clinical practice, which is consistent with international treatment recommendations for DLBCL patients. R-Chemo can provide the clinical evidence and benefit as the first-line standard treatment for Chinese patients with DLBCL.
Adolescent ; Adult ; Aged ; Aged, 80 and over ; Antibodies, Monoclonal, Murine-Derived ; therapeutic use ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Child ; Female ; Humans ; Lymphoma, Large B-Cell, Diffuse ; drug therapy ; Male ; Middle Aged ; Prospective Studies ; Rituximab ; Treatment Outcome
7.Treating superficial hemangioma in children according to local blood flow.
Ranglang HUANG ; Wanpin NIE ; Xianjie CHENG ; Mingzhi XIA ; Rong XIAO
Journal of Central South University(Medical Sciences) 2010;35(8):892-895
OBJECTIVE:
To treat superficial hemangioma in children according to the local blood flow.
METHODS:
A total of 98 children with superficial hemangiomas admitted to our hospital from January 2005 to June 2009, and their clinical data were analyzed.
RESULTS:
According to the local blood flow velocity, 98 children were treated with injections or injection plus surgical treatment, respectively. Ninety-four children (95.9%) were cured.
CONCLUSION
Injection therapy is effective for children with superficial hemangioma, but we should arrange individualized treatment according to the local blood flow in children.
Adolescent
;
Bleomycin
;
administration & dosage
;
analogs & derivatives
;
Child
;
Child, Preschool
;
Female
;
Glucocorticoids
;
administration & dosage
;
Hemangioma
;
blood supply
;
therapy
;
Humans
;
Infant
;
Injections, Intralesional
;
Male
;
Regional Blood Flow
;
Skin Neoplasms
;
blood supply
;
therapy
8.Establishment of three-dimensional finite element model of maxillary complete denture with different shapes of palatal vault
Min XIAO ; Lekang BAI ; Mingzhi LIU ; Yuhu WANG
Journal of Xi'an Jiaotong University(Medical Sciences) 1981;0(03):-
Objective To construct three-dimensional finite element model (3-D FEM) of maxillary complete denture and its supporting tissues with different shapes of palatal vault and different teeth cusp inclination. Methods Based on the data of 3-D measurement, using MATLAB 6.1 and ALGOR FEAS software, 3-D FEM was constructed by computer. Results 3-D FEM of maxillary complete denture was constructed with three different palatal vault and three different teeth cusp inclination (10?, 20?, 30?) and supporting tissues. Conclusion 3-D FEM can be used for the analysis of the effect of different shapes of palatal vault and different teeth cusp inclination on the stress distribution of maxillary complete denture under different loading conditions.


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