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Huang ST, Luo JC, Zhong GH, Teng LP, Yang CY, Tang CL, Jing L, Zhou ZB, Liu J, Jiang N. In vitro and in vivo Biological Evaluation of Newly Tacrine-Selegiline Hybrids as Multi-Target Inhibitors of Cholinesterases and Monoamine Oxidases for Alzheimer's Disease. Drug Des Devel Ther 2024; 18:133-159. [PMID: 38283137 PMCID: PMC10822116 DOI: 10.2147/dddt.s432170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 01/15/2024] [Indexed: 01/30/2024] Open
Abstract
Purpose Alzheimer's disease (AD) is the most common neurodegenerative disease, and its multifactorial nature increases the difficulty of medical research. To explore an effective treatment for AD, a series of novel tacrine-selegiline hybrids with ChEs and MAOs inhibitory activities were designed and synthesized as multifunctional drugs. Methods All designed compounds were evaluated in vitro for their inhibition of cholinesterases (AChE/BuChE) and monoamine oxidases (MAO-A/B) along with their blood-brain barrier permeability. Then, further biological activities of the optimizing compound 7d were determined, including molecular model analysis, in vitro cytotoxicity, acute toxicity studies in vivo, and pharmacokinetic and pharmacodynamic property studies in vivo. Results Most synthesized compounds demonstrated potent inhibitory activity against ChEs/MAOs. Particularly, compound 7d exhibited good and well-balanced activity against ChEs (hAChE: IC50 = 1.57 μM, hBuChE: IC50 = 0.43 μM) and MAOs (hMAO-A: IC50 = 2.30 μM, hMAO-B: IC50 = 4.75 μM). Molecular modeling analysis demonstrated that 7d could interact simultaneously with both the catalytic active site (CAS) and peripheral anionic site (PAS) of AChE in a mixed-type manner and also exhibits binding affinity towards BuChE and MAO-B. Additionally, 7d displayed excellent permeability of the blood-brain barrier, and under the experimental conditions, it elicited low or no toxicity toward PC12 and BV-2 cells. Furthermore, 7d was not acutely toxic in mice at doses up to 2500 mg/kg and could improve the cognitive function of mice with scopolamine-induced memory impairment. Lastly, 7d possessed well pharmacokinetic characteristics. Conclusion In light of these results, it is clear that 7d could potentially serve as a promising multi-functional drug for the treatment of AD.
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Affiliation(s)
- Shu-Tong Huang
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Jin-Chong Luo
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, People’s Republic of China
| | - Guo-Hui Zhong
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
| | - Li-Ping Teng
- School of Pharmacy, Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Cai-Yan Yang
- School of Pharmacy, Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Chun-Li Tang
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
| | - Lin Jing
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
| | - Zhong-Bo Zhou
- School of Pharmacy, Youjiang Medical University for Nationalities, Baise, Guangxi, People’s Republic of China
| | - Jing Liu
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
- School of Pharmacy, Jiangxi University of Chinese Medicine, Nanchang, People’s Republic of China
| | - Neng Jiang
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, People’s Republic of China
- Pharmaceutical College, Guangxi Medical University, Nanning, Guangxi, People’s Republic of China
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Liu GH, Tan XY, Li JX, Zhong GH, Zhai JW, Li MY. A modified Blumgart anastomosis with a simple and practicable procedure after laparoscopic pancreaticoduodenectomy: our center's experience. BMC Surg 2023; 23:349. [PMID: 37974183 PMCID: PMC10655365 DOI: 10.1186/s12893-023-02221-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Accepted: 10/06/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND Laparoscopic pancreaticoduodenectomy(LPD) has become the goal of lots of minimally invasive surgical centers in recent years. Postoperative pancreatic fistula(POPF) is still the barrier to attaining the above goal. Thus, improving anastomosis techniques to reduce the rate of POPF has been a hotspot of surgery. Blumgart pancreaticojejunostomy is considered one of the best anastomosis procedures, with low rates of POPF. However, the original Blumgart pancreaticojejunostomy method is not easy for laparoscopic operation. In consequence, we modified a Blumgart pancreaticojejunostomy technique with a simple and practicable procedure and applied to LPD. METHODS We collected and retrospectively analyzed the perioperative clinical data of patients who underwent modified Blumgart anastomosis from February 2017 to September 2022. The above patients included 53 cases in open pancreaticojejunostomy(OPD) and 58 cases in LPD. After propensity score matching, 44 cases were included for comparison in each group. RESULTS After propensity score matching, the average time for pancreaticojejunostomy was about 30 min in the LPD group. The Clinically relevant POPF(CR-POPF) rate was 9.1%. The length of postoperative hospitalization was 13.1 days. Compared with the OPD group, The CR-POPF rate in the LPD group are not significant differences. But the postoperative length of hospital stay was significantly shorter in the LPD group. Besides, there were no other severely postoperative complications between two groups. CONCLUSION The modified Blumgart anastomosis technique applied to LPD in our Center not only has simple and convenient properties but also low rate of CR-POPF. And this method may be a good choice for surgeons to begin to carry out LPD.
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Affiliation(s)
- Guo-Hua Liu
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guangdong Medical University, Zhanjiang, Guangdong, 524000, China
| | - Xiao-Yu Tan
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guangdong Medical University, Zhanjiang, Guangdong, 524000, China
| | - Jia-Xing Li
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guangdong Medical University, Zhanjiang, Guangdong, 524000, China
| | - Guo-Hui Zhong
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guangdong Medical University, Zhanjiang, Guangdong, 524000, China
| | - Jing-Wei Zhai
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guangdong Medical University, Zhanjiang, Guangdong, 524000, China
| | - Ming-Yi Li
- Department of Hepatobiliary Surgery, Affiliated Hospital, Guangdong Medical University, Zhanjiang, Guangdong, 524000, China.
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Su D, Wei RY, Yan ZM, Zhong GH, Qin XQ, Huang ST, Long JY, Zhang FL, He P, Chen ZJ, Yan YQ, Jiang N, Tang WZ. Design, synthesis, and evaluation of antitumor activity of novel C-6 sulfhydryl-substituted and 20-substituted derivatives of celastrol. Chem Biol Drug Des 2023; 102:316-331. [PMID: 37156601 DOI: 10.1111/cbdd.14247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/01/2023] [Accepted: 04/04/2023] [Indexed: 05/10/2023]
Abstract
Celastrol has been identified as a potential candidate for anticancer drug development. In this study, 28 novel celastrol derivatives with C-6 sulfhydryl substitution and 20-substitution were designed and synthesized, and their antiproliferative activity against human cancer cells and non-malignant human cells was evaluated, with cisplatin and celastrol being used as controls. The results showed that most of the derivatives had enhanced in vitro anticancer activity compared to the parent compound celastrol. Specifically, derivative 2f demonstrated the most potent inhibitory potential and selectivity against HOS with an IC50 value of 0.82 μM. Our study provides new insights into the structure-activity relationship of celastrol and suggests that compound 2f may be a promising drug candidate for the treatment of osteosarcoma.
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Affiliation(s)
- Di Su
- Department of Gastrointestinal Surgery, Guangxi Clinical Research Center for Colorectal Cancer, Guangxi Medical University Cancer Hospital, Nanning, P.R. China
| | - Rong-Yuan Wei
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, P.R. China
| | - Zhi-Ming Yan
- College of Pharmacy, Guangxi Medical University, Nanning, P.R. China
| | - Guo-Hui Zhong
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, P.R. China
| | - Xiang-Qing Qin
- Department of Gastrointestinal Surgery, Guangxi Clinical Research Center for Colorectal Cancer, Guangxi Medical University Cancer Hospital, Nanning, P.R. China
| | - Shu-Tong Huang
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, P.R. China
| | - Juan-Yue Long
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, P.R. China
| | - Feng-Ling Zhang
- College of Pharmacy, Guangxi Medical University, Nanning, P.R. China
| | - Ping He
- College of Pharmacy, Guangxi Medical University, Nanning, P.R. China
| | - Zhong-Ji Chen
- College of Pharmacy, Guangxi Medical University, Nanning, P.R. China
| | - Ya-Qian Yan
- College of Pharmacy, Guangxi Medical University, Nanning, P.R. China
| | - Neng Jiang
- Department of Pharmacy, Guangxi Medical University Cancer Hospital, Nanning, P.R. China
| | - Wei-Zhong Tang
- Department of Gastrointestinal Surgery, Guangxi Clinical Research Center for Colorectal Cancer, Guangxi Medical University Cancer Hospital, Nanning, P.R. China
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Zhong GH, Ling SK, Li YX. [Mechanism of cardiac atrophy under weightlessness/simulated weightlessness]. Sheng Li Xue Bao 2016; 68:194-200. [PMID: 27108907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cardiac remodeling is the heart's response to external or internal stimuli. Weightlessness/simulated weightlessness leads to cardiac atrophy and heart function declining. Understanding the mechanism of cardiac atrophy under weightlessness is important to help astronaut recover from unloading-induced cardiovascular changes after spaceflight. Unloading-induced changes of hemodynamics, metabolic demands and neurohumoral regulation contribute to cardiac atrophy and function declining. During this process, Ca(2+)-related signaling, NF-κB signaling, ERK signaling, ubiquitin-proteasome pathway and autophagy are involved in weightlessness-induced cardiac atrophy. This article reviews the underlying mechanism of cardiac atrophy under weightlessness/simulated weightlessness.
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Affiliation(s)
- Guo-Hui Zhong
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, China
| | - Shu-Kuan Ling
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, China
| | - Ying-Xian Li
- State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, China.
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Abstract
The thixotropic parameters of whole blood from 314 healthy subjects (154 women, 160 men) were measured with our modified method by Low shear 30 Rheometer and calculated according Huang's equation. This communication offered the reference range of thixotropic parameters from man and woman group. The results demonstrated that no significant differences existed in the plasma viscosity and fibrinogen between man and woman group. Man group had statistically higher values in HCT, yield stress (tau 0), Newtonian contribution of viscosity (mu), non-Newtonian contribution of viscosity (eta s--mu), apparent viscosity at 2.37 sec-1 (eta s), the equilibrium value of the structural parameter (A) and apparent kinetic rate constant of rouleaux breakdown (ARC) than those in woman group. The man and woman groups could be separately divided into five subgroups in terms of age. It was found that the levels of fibrinogen and plasma viscosity had a tendency of increasing with aging. In the old subgroup (greater than 60 years) of men and women HCT, tau v, mu, eta s, (eta s--mu) and A had significant lower values than those in young and middle-age subgroups. However, it was very interested that there were differences of ARC versus age between man group and woman group, i.e. ARC in the man subgroup II, IV had lower and the woman subgroup II, III, IV had higher values than their respective older subgroup did.
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Affiliation(s)
- H Q Chen
- Research Unit of Biomedical Engineering, West China University of Medical Sciences, Chengdu
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Chen HQ, Zhong GH, Li LA, Wang XY, Chen ZY, Zhou D, Xue ZN. [Research on thixotropic parameters of whole blood from Chinese adult subjects]. Hua Xi Yi Ke Da Xue Xue Bao 1989; 20:356-60. [PMID: 2630412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This study measured the thixotropic parameters of whole blood from 314 healthy subjects (154 women, 160 men) with our modified method by Low Shear-30 Rheometer according to Huang's equation. We suggested the range of normal values of thixotropic parameters from man and woman group. The results demonstrated that no significant differences existed in the plasma viscosity (eta p) and fibrinogen between man and woman group. Man group had significantly higher values than those in woman group in hematocrit (HCT), yield stress (tau 0), Newtonian contribution of viscosity (mu), non-Newtonion contribution of viscosity (eta s-mu), apparent viscosity at 2.37s-1 (eta s), the equilibrium value of the structural parameter (A) and apparent kinetic rate constant of rouleaux breakdown (ARC). The man and woman groups could be separately divided into five subgroups on the basis of age. All parameters were compared with one another and treated statistically. We found that the levels of fibrinogen and eta p had an increasing trend with aging. In the old subgroup (greater than or equal to 60 years) of man and woman, HCT, tau 0, mu, eta s, (eta s-mu) and A had significantly lower values than those in young and middle age subgroups. However, it was very interesting that there were differences of ARC versus age between the man and woman groups, i.e., ARC in the man subgroup 3, 4 had lower values and in the woman subgroup 2, 3, 4 had higher values than their respective older subgroups did.
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Li L, Chen HQ, Zhong GH, Xue ZN. [Effects of plasma concentration on the viscoelastic properties of human blood]. Hua Xi Yi Ke Da Xue Xue Bao 1988; 19:26-9. [PMID: 3391594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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