1.Research progress on the chemical composition and antidepressant mechanism of volatile oils of traditional Chinese medicine
Yifei ZHANG ; Lu CHENG ; Mingshi REN ; Dao GUO ; Fengjiao KUANG ; Zonghua KANG ; Jianguang LUO ; Feihua WU
Journal of China Pharmaceutical University 2025;56(1):22-30
Depressive disorder is a mental illness characterized by poor mood and cognitive dysfunction caused by a range of complicated factors. Antidepressants have strong short-term efficacy in clinical application, yet with significant adverse effects and resistance in long-term use. Essential oils are small molecular compounds mainly composed of monoterpenes and sesquiterpenes, most of which are characterized by aromatic odors, easy permeability through the blood-brain barrier, and low toxic side effects. Volatile oil from traditional Chinese medicine can regulate neurotransmitter monoamine, hypothalamic-pituitary-adrenal axis, brain-derived neurotrophic factor, neuroinflammation and oxidative stress, and intestinal microbiota-gut-brain axis to exert an antidepressant effect through multiple pathways and targets. This review summarizes the main antidepressant chemical components of essential oil of traditional Chinese medicine, their pharmacological mechanisms and clinical application, aiming to provide some reference for further development and clinical application of essential oil of traditional Chinese medicine.
2.PROTAC-loaded nanocapsules degrading BRD4 for radio-chemotherapy sensitization in glioblastoma.
Yun GUO ; Mingzhu FANG ; Shilin ZHANG ; Zheng ZHOU ; Zonghua TIAN ; Haoyu YOU ; Yun CHEN ; Jingyi ZHOU ; Xiaobao YANG ; Yunke BI ; Chen JIANG ; Tao SUN
Acta Pharmaceutica Sinica B 2025;15(10):5050-5070
Glioblastoma (GBM) is a highly aggressive primary brain tumor characterized by poor prognosis. Conventional chemo-radiotherapy demonstrates limited therapeutic efficacy and is often accompanied by significant side effects, largely due to factors such as drug resistance, radiation resistance, the presence of the blood-brain barrier (BBB), and the activation of DNA damage repair mechanisms. There is a pressing need to enhance treatment efficacy, with BRD4 identified as a promising target for increasing GBM sensitivity to therapy. Lacking small molecule inhibitors, BRD4 can be degraded using PROteolysis Targeting Chimera (PROTAC), thereby inhibiting DNA damage repair. To deliver PROTAC, SIAIS171142 (SIS) effectively, we designed a responsive nanocapsule, MPL(SS)P@SIS, featuring GBM-targeting and GSH-responsive drug release. Modified with 1-methyl-l-tryptophan (MLT), nanocapsules facilitate targeted delivery of SIS, downregulating BRD4 and sensitizing GBM cells to radiotherapy and chemotherapy. After intravenous administration, MPL(SS)P@SIS selectively accumulates in tumor tissue, enhancing the effects of radiotherapy and temozolomide (TMZ) by increasing DNA damage and oxidative stress. GSH activates the nanocapsules, triggering BRD4 degradation and hindering DNA repair. In mouse models, the nanosensitizer, combined with TMZ and X-ray irradiation, efficiently inhibited the growth of GBM. These findings demonstrate a novel PROTAC-based sensitization strategy targeting BRD4, offering a promising approach for effective GBM therapy.
3.Effects of thermal cycling on bonding properties of novel low-shrinkage resin adhesive.
Zonghua WANG ; Xiaoran ZHANG ; Shuo YAO ; Jiaxin ZHAO ; Chuanjian ZHOU ; Junling WU
West China Journal of Stomatology 2023;41(3):276-283
OBJECTIVES:
The current study aimed to investigate the bonding properties of a novel low-shrinkage resin adhesive containing expanding monomer and epoxy resin monomer after thermal cycling aging treatment.
METHODS:
Expanding monomer of 3,9-diethyl-3,9-dimethylol-1,5,7,11-tetraoxaspiro-[5,5] undecane (DDTU) as an anti-shrinkage additive and unsaturated epoxy monomer of diallyl bisphenol A diglycidyl ether (DBDE) as a coupling agent were synthesized. A blend of DDTU and DBDE at a mass ratio of 1∶1, referred to as "UE", was added into the resin matrix at the mass fraction of 20% to prepare a novel low-shrinkage resin adhesive.Then, the methacrylate resin adhesive without UE was used as the blank control group, and a commercial resin adhesive system was selected as the commercial control group. Moreover, the resin-dentin bonding and micro-leakage testing specimens were prepared for the thermal cycling aging treatment. The bonding strength was tested, the fracture modes were calculated, the bonding fracture surface was observed by scanning electron microscope (SEM), and the dye penetration was used to evaluate the tooth-restoration marginal interface micro-leakage. All the data were analyzed statistically.
RESULTS:
After aging, the dentin bonding strength of the experimental group was (19.20±1.03) MPa without a significant decrease (P>0.05), that of the blank control group was (11.22±1.48) MPa with a significant decrease (P<0.05) and that of the commercial control group was (19.16±1.68) MPa without a significant decrease (P>0.05). The interface fracture was observed as the main fracture mode in each group after thermal cycling by SEM. The fractured bonding surfaces of the experimental group often occurred on the top of the hybrid layer, whereas those of the blank and commercial control groups mostly occurred on the bottom of the hybrid layer. Micro-leakage rating counts of specimens before and after thermal cycling were as follows: the experimental group was primarily 0 grade, thereby indicating that a relatively ideal marginal sealing effect could be achieved (P>0.05); meanwhile, the blank control group was primarily 1 grade, and the penetration depth of dye significantly increased after thermal cycling (P<0.05); the commercial control group was primarily 0 grade without statistical difference before and after thermal cycling (P>0.05), while a significant difference was observed between the commercial control group and experimental group after thermal cycling (P<0.05).
CONCLUSIONS
The novel low-shrinkage resin adhesive containing 20%UE exhibited excellent bonding properties even after thermal cycling aging treatment, thereby showing a promising prospect for dental application.
Composite Resins
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Dental Bonding
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Dental Cements
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Surface Properties
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Resin Cements
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Dentin-Bonding Agents
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Dentin
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Materials Testing
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Microscopy, Electron, Scanning
4.Application of progressive case teaching method based on core competency in standardized nursing training
Xiaoying CHEN ; Fei CHEN ; Jinyu QIAN ; Yifei ZHANG ; Zonghua WANG ; Lei LIU ; Jishu XIAN
Chinese Journal of Medical Education Research 2023;22(7):1088-1093
Objective:To explore the application effect of progressive case teaching method based on core competency in standardized nursing training.Methods:A total of 63 nursing students rotated in department of neurosurgery from June 2020 to June 2022 were selected as the research objects and randomized into experimental group ( n=31) and control group ( n=32). The experimental group adopted the progressive case teaching method based on core competency, and the control group adopted the conventional teaching mode. The data was analyzed using SPSS 26.0 to conduct t-test or non-parametric test based on the data normality for comparing the theory results, objective structure clinical examination (OSCE) scores, core competency, self-directed learning ability scores, teaching satisfaction and nursing satisfaction of patients in two wards between the two groups. Results:The theoretical results ( t=4.74, P<0.001) and OSCE scores ( t=3.81, P<0.001) of the experimental group were better than those of the control group. The scores of core competency and autonomous learning ability ( t=4.32, P<0.001) of the experimental group were better than those of the control group. The teaching satisfaction score ( t=2.21, P=0.044) and patient satisfaction score ( t=2.92, P=0.011) of the observation group were better than those of the control group. Conclusion:The progressive case teaching method based on core competency can improve the post competency of nurses, and also improve the teaching satisfaction rate and patient satisfaction rate, which is worthy of being carried out in the subsequent teaching activities.
5.Cool-minded Ideas on Hot Inspiration of Famous Classical Formula Compound Preparation Development
Yan LIU ; Jipeng DI ; Cong GUO ; Jun ZHANG ; Yuntao DAI ; Zonghua SONG ; An LIU
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(2):175-180
The development of famous classical formula compound preparations has been a research hotspot in recent years, carrying great expectations from the government, academia and industry. During the process of its research and development, it reflects many problems related to traditional Chinese medicine (TCM) industry and deserves deep consideration by the academic community. Based on the current status of development of famous classical formulas, this paper summarizes the key problems and made an in-depth analysis. The results show that three key issues should be paid attention. The first is the weakness of basic research in TCM, which affect the healthy development of TCM. The second is the understanding of development of famous classical formula compound preparations is not in-depth, and the formulation of relevant policies needs to be more reasonable. Thirdly, the expectation for the development of famous classical formula compound preparations is too high, which affects the research and development process of the compound preparations. It is hoped that the TCM industry can take this opportunity to face the problems, propose solutions, and form new breakthroughs to promote the development and progress of TCM.
6. Effects of anteriolateral thigh perforator flap and fascia lata transplantation in combination with computed tomography angiography on repair of electrical burn wounds of head with skull exposure and necrosis
Xiaoqing LI ; Xin WANG ; Yalong HAN ; Gang JI ; Zonghua CHEN ; Jia ZHANG ; Jianping ZHU ; Jianxing DUAN ; Yongjing HE ; Xiaomin YANG ; Wenjun LIU
Chinese Journal of Burns 2018;34(5):283-287
Objective:
To explore the effects of anteriolateral thigh perforator flap and fascia lata transplantation in combination with computed tomography angiography (CTA) on repair of electrical burn wounds of head with skull exposure and necrosis.
Methods:
Seven patients with head electrical burns accompanied by skull exposure and necrosis were admitted to our burn center from March 2016 to December 2017. Head CTA was performed before the operation. The diameters of the facial artery and vein or the superficial temporal artery and vein were measured, and their locations were marked on the body surface. Preoperative CTA for flap donor sites in lower extremities were also performed to track the descending branch of the lateral circumflex femoral artery with the similar diameter as the recipient vessels on the head, and their locations were marked on the body surface. Routine wound debridement and skull drilling were performed successively. The size of the wounds after debridement ranged from 12 cm×8 cm to 20 cm×12 cm, and the areas of skull exposure ranged from 8 cm×6 cm to 15 cm×10 cm. Anteriolateral thigh perforator flaps with areas from 13 cm×9 cm to 21 cm×13 cm containing 5-10 cm long vascular pedicles were designed and dissected accordingly. The fascia lata under the flap with area from 5 cm×2 cm to 10 cm×3 cm was dissected according to the length of vascular pedicle. The fascia lata was transplanted to cover the exposed skull, and the anteriolateral thigh perforator flap was transplanted afterwards. The descending branch of the lateral circumflex femoral artery and its accompanying vein of the flap were anastomosed with superficial temporal artery and vein or facial artery and vein before the suture of flap. The flap donor sites were covered by intermediate split-thickness skin graft collected from contralateral thigh or abdomen.
Results:
The descending branch of the lateral circumflex femoral artery and its accompanying vein were anastomosed with superficial temporal artery and vein in six patients, while those with facial artery and vein in one patient. All the flaps survived after the operation, and no vascular crisis was observed. Wound healing was satisfactory. One patient was lost to follow up. Six patients were followed up for 6 to 10 months. The patients were bald in the head operation area with acceptable appearance. No psychiatric symptom such as headache or epileptic seizure was reported. The flap donor sites were normal in appearance. The muscle strength of the lower extremities all reached grade V. The sensation and movement of the lower extremities were normal.
Conclusions
Anterolateral thigh perforator flap with fascia lata transplantation can effectively repair electrical burn wounds of head with skull exposure and necrosis. The fascia lata can be used to protect the vascular pedicle of flaps, which is beneficial to the survival of the flap. Preoperative head and lower extremities CTA can provide reference for intraoperative vascular exploration in donor site and recipient area, so as to shorten operation time.
7.Anaiysis of Clinical Manifestations and Risk Factors of Mortality due to Acinetobacter Baumannii Positive Pulmonary Infection in ICU
Raorao ZHANG ; Ruihua XU ; Zonghua SHI
Journal of Medical Research 2018;47(6):125-129
Objective To analyze the clinical manifestations,bacterial resistance to antibiotics and risk factors of mortality in pneumonia patients with Acinetobacter baumannii(AB) positive in respiratory secretions.Methods Clinical datas of pneumonia patients with AB positive in respiratory secretions in ICU from June 2012 to June 2017 were analyzed.According to the 28 day survival after diagnosis,the patients were divided into death group and survival group.Univariate and multivariate Logistic analysis were used to examine the risk factors of AB positive patients.Results This study included 98 patients.The 28 day mortality was 54.1%.The independent risk factors of mortality were:merge coronary heart disease(OR =38.3,95% CI:1.81-720.10,P =0.019),high APACHE Ⅱ score (OR =3.47,95% CI:1.30-12.81,P=0.043),prolonged APTT(OR =1.32,95% CI:1.03-1.71,P=0.037),high levels of PCT(OR=2.78,95% CI:1.30-7.02,P =0.023).APACHE Ⅱ scores and patients died from AB culture positive time was significantly negative correlation,r =-0.601,P =0.000.Whether the application of antibiotics for AB was not clearly affected by the prognosis.Conclusion Merge coronary heart disease,high APACHE Ⅱ score,prolonged APTT,high levels of PCT are independent risk factors for AB culture positive patients.In particular,merge coronary heart disease and the severity of the underlying disease determine the patient's prognosis.
8.Efficacy and safety of intravitreal injection of ranibizumab for retinopathy of prematurity
Xiumei YANG ; Tao HE ; Yan QIU ; Qiuping LI ; Huimin ZHANG ; Lu LIU ; Junqiu SONG ; Zonghua WANG
Recent Advances in Ophthalmology 2017;37(2):137-140
Objective To observe the efficacy and safety of intravitreal injection of ranibizumab in the treatment of retinopathy of prematurity (ROP).Methods Data from 49 consecutive ROP patients (95 eyes) including type Ⅰ pre-threshold,threshold and aggressive posterior ROP who had received anti-VEGF treatment for the first time in our hospital from June 2014 to August 2015 were collected.60 eyes from the 95 eyes were confined as the zone Ⅰ disease group,while the remaining 35 eyes as zone Ⅱ disease group.The difference of birth weight,gestational age,corrected gestational age,treatment effects,recurrence and re-treatment time between two groups were compared.0.025 mL ranibizumab (10 mg · mL-1) was injected through 1.5 mm puncture after corneal limbus by using 30G 1 mL injection syringe.At the end of the injection,tobramycin and dexamethasone ophthalmic ointment eye bag was used.After the injection of 3 days,the portable slit lamp and tonometer were used to observe the intraocular pressure,intraocular hemorrhage and endophthalmitis.The indirect ophthalmoscope was used to observe the retinal vascular tortuosity and ridge regression of lesion expansion at 1 week after treatment.At the same time,the systemic adverse reactions related to treatment were observed.Results After receiving ranibizumab treatment for the first time,93 eyes (95.9%) exhibited ROP regression after single injection,including 58 eyes in zone Ⅰ disease group,35 eyes in zone Ⅱ disease group.There was no statistical difference between two groups (P > 0.05).22 eyes required additional anti-VEGF injection or laser treatment for ROP recurrence,including 17 eyes in zone Ⅰ disease group,5 eyes in zone Ⅱ disease group.There was statistical difference between two groups (P <0.05).The time from recurrence to re-treatment was (6.50 ±2.54) weeks,which in zone Ⅰ disease group was (6.44 ± 2.74) weeks and in zone Ⅱ disease group was (6.67 ± 2.31)weeks,there was no statistical difference between two groups (P > 0.05).No local or systemic adverse events associated with the treatment or drug was observed within the following period.Conclusion Intravitreal injection of ranibizumab is an effective and well tolerated method for zone Ⅰ and zone Ⅱ ROP,but the recurrence rate is high.There Is no local or systemic adverse events associated with the treatment or drug.
9.Application of circulating DNA in colorectal cancer
Zonghua HUANG ; Dandan XU ; Feiyan ZHANG ; Lihua SONG ; Xianrang SONG
Journal of International Oncology 2016;43(2):152-154
Circulating DNA is defined as a kind of extracellular DNA that exists in plasma,cerebrospinal fluid and synovial fluid.The concentration of circulating DNA of cancer patients is significantly higher than that in healthy people.The genetic and epigenetic alterations of circulating cell-free nucleic acids are relevant to cancer development and progression,for example,gene mutation,DNA methylation and microsatellite instability and so on.The quantitative and qualitative detection of circulating DNA shows promising potential value in cancer screening,diagnosis,disease monitoring treatment and prognosis.
10.The research of proteome profiling change of 1-bromopropane poisoning cases
Rongming MIAO ; Bangmei DING ; Yingyi ZHANG ; Weimin WU ; Dehong YOU ; Zonghua FANG ; Rui ZHAO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2016;34(11):835-838
Objective This study was mainly focused on styudy on he proteome profile change between exposure to 1-Bromopropane (1-BP) and 1-BP poisoning.Methods The samples of serums from exposure to 1-BP and 1-BP poisoning were collected and analyzed through Label free proteome technology platform.The differently expressed proteins between the two groups were quantified and identified,followed by function analysis by bioinformatics.Results 127 proteins over 2 fold-change were selected,in which 39 proteins were up-regulated and 88 proteins were down-regulated.These differently expressed proteins were mainly involved in the process of enzyme active regulation,inflammatory reaction,protein modification,stress response,coagulation,transport.Conclusion The differently expressed proteins provided the potential protein biomarkers for the early diagnosis of 1-BP poisoning and was beneficial for clinical diagnosis of 1-BP and understanding of the mechanism of 1-BP poisoning.

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