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ISSN 1000-0054
CN 11-2223/N
创刊于 1915 年 (月刊)
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1.
Progress in Phytochemical and Bioactivities of
Areca catechu
L
Zhenshuai Tang, Jifeng Liu
Medicine Research 2022, 6 (
3-4
): 220004-220004. DOI:
10.21127/yaoyimr20220004
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251
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Areca catechu
L is a genus of plants whose leaves and fruits can be used as folk medicine. The chemical composition of
A. catechu
can be divided into alkaloids, flavonoids, tannins, terpenoids, sterols, fatty acids,
etc
. It has pharmacological effects such as anti-inflammatory, antioxidant, antibacterial, antidepressant, hypotensive,
etc
., while having toxic side effects such as oral toxicity, hepatotoxicity and addiction. This paper reviews the progress of research on chemical composition and pharmacological effects and toxic side effects of
A. catechu
, and provides new ideas for subsequent development of
A. catechu
.
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2.
Preparation of Ti Doped Nano-ZnO Dispersion and Their Application in Deodorization and Antibiosis
Lin Lin, Shuhong Wu, Xiaoyan Wu, Zheng Zhu, Yongxin Wu, Jun Zhu
Medicine Research 2022, 6 (
3-4
): 220003-220003. DOI:
10.21127/yaoyimr20220003
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167
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To develop an effective deodorant and antibacterial agent, we prepare a Ti doped nano-ZnO through a low temperature hydrothermal route. The shape and size of these as-prepared samples can be tuned effectively by controlling the reaction conditions, such as the molar ratio of Ti/Zn. Furthermore, the sample with an appropriate portion of Ti and Zn is selected to obtain dispersion for improving sample activity and avoiding sample agglomeration. XRD, SEM, EDX and DLS are performed to characterize the structure and morphology of samples. Furthermore, the typical dispersion is used to remove odorous molecules and kill bacteria. The results show that polycarboxylic acid can be used to improve the dispersibility and stability of nanoparticles, and the well-dispersed dispersion is high effective for deodorization and antibiosis. Moreover, CCK-8 assays are performed to evaluate the cytotoxicity of dispersions with different size. The result reveals that dispersion with a smaller particle size displayed more serious toxicity. Thus, we suggest that the obtained dispersion can be used as a deodorant and antibacterial agent, but it is necessary to take precautions when handling the dispersion because the nanoparticles, special smaller nanoparticles is more likely to cause serious cytotoxicity.
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3.
Recent Advances on Anticancer Effects and Molecular Mechanisms of Maslinic Acid
Jin Li, Xiaomei Yang, Wei Jiang, Qianqian Hu, Xuanjun Wang, Huanhuan Xu
Medicine Research 2022, 6 (
3-4
): 220002-220002. DOI:
10.21127/yaoyimr20220002
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219
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Cancer has become a serious public health concern that affects millions of individuals annually in the world. Surgical resection, chemotherapy and radiotherapy have been considered as the standard treatment strategies for different kinds of cancers. Among them, chemotherapeutic agents are usually used for the treatment of malignancies but toxic side effects and drug resistance limit their clinical efficacy. Natural compounds isolated from medicinal plants are excellent and reliable sources of new anticancer drugs. Maslinic acid is a naturally occurred pentacyclic triterpenoid with anticancer activities. This review mainly focuses on recent advances on anticancer effects and molecular mechanisms of maslinic acid and will hopefully provide valuable insights into clinical application of maslinic acid to the treatment of cancers.
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4.
Progress in Synthetic Methodology of Coumarins
Sijin Hang, Yinan Wang, Ruilong Sheng, Ruihua Guo
Medicine Research 2022, 6 (
3-4
): 220005-220005. DOI:
10.21127/yaoyimr20220005
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162
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The basic structure of coumarins contain a benzene ring and a pyrone ring, which drive their values on biological research and potential therapeutic properties. In recent years, the synthesis of coumarins and their derivatives have drawn much attention from organic chemists and medicinal chemists. Herein, we summarized recent advances on synthetic methodologies of coumarins from 2011 to 2021.
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5.
The Effect and Underlying Mechanism of Sleep Deprivation on Several Gastrointestinal Physiology and Diseases
Yi-Fan Li, Lu-Yu Niu, Jie-Fu Fan, Zhi-Chao Yao, Ling-Yun Shen, Yang-Kai Wang, Ying He
Medicine Research 2024, 8 (
1
): 230006-230006. DOI:
10.21127/yaoyimr20230006
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82
)
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162
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The incidence of sleep deprivation has increased significantly in contemporary society. Gastrointestinal diseases, one of the diseases with high incidence caused by sleep deprivation, are increasingly becoming a serious public health threat worldwide. However, confusion about underlying mechanism by which sleep deprivation exacerbates gastrointestinal dysfunction has always hindered people from carrying out effective clinical treatment. In this paper, we review the effects of sleep deprivation on four gastrointestinal physiology and further reveal the mechanism by which sleep deprivation exacerbates several gastrointestinal diseases, providing a new perspective for people to better understand and treat related diseases.
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6.
Antibacterial Activity of Extracellular Vesicles from Symbiotic Vaginal Lactobacilli
Lanxi Zheng, Kehai Liu*
Medicine Research 2023, 7 (
1-2
): 230003-230003. DOI:
10.21127/yaoyimr20230003
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158
)
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Vaginal microorganisms, dominated by
Lactobacillus
spp., are an important defense against infections including pathogenic sexually transmitted infections. Extracellular vesicles (EVs) are recognized and endocytosed by tissue cells through specific interactions between membrane surface proteins, and thereafter deliver their molecular cargo. Bacteria can use their EVs to interact with neighboring bacteria and play an important role in the physiology and pathogenesis of cells. Herein, we investigated whether the bacteriostatic effect of
Lactobacillus
was mediated by extracellular vesicles released by these bacteria.
L. gasseri
-derived EVs were isolated by ultracentrifugation and loaded with metronidazole to observe their antibacterial activity. Our results showed that
L. gasseri
-derived EVs could effectively encapsulate drug, enhanced drug retardation, and had good biosafety. EVs and EVs-metronidazole have inhibitory effects on
E. coli
,
S. aureus
, and
L. monocytogenes
, with the best inhibitory effect on
L. monocytogenes
. Together, our work provides a new potential strategy for vaginitis treatment.
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7.
Research Advances and Applications of Polysaccharide-Based Complex Hydrogels
Yuting Liu, Yunbo Ge, Chaoyan Zhang
Medicine Research 2023, 7 (
1-2
): 230005-230005. DOI:
10.21127/yaoyimr20230005
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134
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This paper introduces research background of polysaccharide-based composite hydrogel materials, discusses definition, classification and preparation of hydrogels, and summarizes research progress of chitosan-based hydrogels, hyaluronic acid-based hydrogels, alginate-based hydrogels, starch-based hydrogels and cellulose-based hydrogels according to different types of polysaccharides. In addition, we summarize the applications of polysaccharide-based complex hydrogels in wound healing, tissue engineering, and drug delivery. Finally, the development opportunities and challenges faced by polysaccharide-based complex hydrogels are summarized, and the future research directions are prospected, hoping to broaden their potential application fields.
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8.
Physicochemical Properties and
in vitro
Digestion Characteristics of Polysaccharide from
Auricularia auricula
Min Lei, Yuting Liu, Yunbo Ge, Chaoyan Zhang
Medicine Research 2023, 7 (
1-2
): 230004-230004. DOI:
10.21127/yaoyimr20230004
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124
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Auricularia auricula
polysaccharide (AAP) was extracted with ethanol of different concentrations (50%, 60%, 70%, 80%, 90%). Taking the yield, total sugar content, and uronic acid content as the indexes, the optimal alcohol precipitation concentration of AAP was 50%, and the polysaccharide content was 58.89%.
In vitro
digestion experiment showed that the content of reducing sugar in AAP was almost unchanged in the saliva and gastric juice digestion phase. However, the reducing sugar content of AAP increased from 0.062 mg/mL at 0.5 h to 1.162 mg/mL at 3 h during the intestinal juice digestion phase. In addition,
in vitro
antioxidant results showed that AAP still maintained high 2,2’-azido bis (3-ethyl benzothiazole line-6-sulfonic acid) (ABTS) free radical scavenging activity after digestion.
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9.
Magnesium Ion-Dependent Activation of Glucokinase in Simulated Cytoplasmic System
in Vitro
Xinyi Pu, Boyu Chen, Xiaozhen Diao, Hui Han, Jinhua Hou, Jiudong Hu, Yuhuan Yang, Yuping Zhu, Wenhui Wu
Medicine Research 2023, 7 (
3-4
): 230011-230011. DOI:
10.21127/yaoyimr20230011
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91
)
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Glucokinase (GK), as a key enzyme regulating carbohydrate metabolism, has been widely researched as a therapeutic target for diabetes. This study aimed to investigate the influence of magnesium ion concentration, ATP concentration, and enzyme concentration on the catalytic activity of GK by response surface. A cellular model of insulin resistance (IR) was established to observe the ameliorating effect of magnesium ion on IR by screening the concentration and duration of insulin action. The results indicated that the optimal concentrations for enzyme activity were found to be 1.1 mM for magnesium ion, 1.4 mM for ATP, and 0.5 U/mL for glucokinase. In the presence of taurine, the IR model was treated with magnesium ion (1.1 mM) can promote glucose consumption, GK activity and intracellular magnesium concentration in IR cells. Magnesium ion, as a key factor in GK-catalyzed glycolysis, showed a positive correlation between intracellular magnesium ions and the catalytic activity of GK within a certain concentration range. Therefore, magnesium ion could effectively promote carbohydrate metabolism and alleviate the progression of IR.
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10.
Evaluation of Camphor Hydrazone Derivatives as Inhibitors of Myeloperoxidase and Acetylcholinesterase Enzymes: Targets for the Development of Agents against Alzheimer’s Disease
Leandro Louback da Silva, Beatriz de Frias Leite, Emerson Teixeira da Silva, Marcus Vinícius Nora de Souza
Medicine Research 2023, 7 (
1-2
): 230002-230002. DOI:
10.21127/yaoyimr20230002
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(
150
)
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81
)
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Alzheimer's disease (AD) is the most common form of dementia, affecting nearly 10% of individuals over the age of 65 and nearly 50% of those over the age of 85. It is responsible for incapacitation of the individual by degrading cognitive functions, and its evolution leads the individual to death after a few years. It is characterized by brain degeneration triggered by several factors. One of the triggering factors is in the acetylcholine system. There is a decrease in the count of this neurotransmitter in individuals with this disease. The involvement of endogenous metal ions such as iron, copper, and zinc has also been involved in neurodegeneration mechanisms, in which there is the formation of radical species that cause oxidative stress, with important contribution of the neutrophil-derived enzyme myeloperoxidase, forming lesions in the neuronal cytoplasm and functional deficiency of neurons. In the present work, we report the evaluation of seventeen Camphor hydrazone derivatives 3a—3q, prepared in accordance with our previous work, as probable inhibitors of myeloperoxidase (MPO), acetylcholinesterase (AChE), and free radical-scavenging, to be used as potential agents against AD. Nine compounds showed significant activity against MPO. Among them, 3j and 3k had 78.4 and 53.9 μM (IC
50
), respectively. Three compounds showed stronger activity, 3d, 3k, and 3l with EC
50
of 15.2, 21.3, and 14.4 µM, respectively, for free radical-scavenging activity, being similar to the standard quercetin (12.8 µM). All the final compounds were analyzed for drug-likeness. With exception for 3e and 3p, all were suitable on all filters evaluated. These results show that the compounds of hydrazone class are promising in the search for potential candidates for new agents against AD.
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11.
Progress in Antidiabetic Effects of Sesquiterpenoids
Kunyi Zhang, Yi Liu, Feixiang Guo, Huiqin Zheng, Qianqian Sun, Lizhen Fang
Medicine Research 2023, 7 (
3-4
): 230009-230009. DOI:
10.21127/yaoyimr20230009
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93
)
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Sesquiterpenoids have a wide range of physiological activities, and have potent effects against various diseases. In recent years, many sesquiterpenoids have been reported to show significant bioactivities on diabetes mellitus that is an increasingly severe metabolic disease. In this paper, the bioactivities of sesquiterpenoids on diabetes mellitus in the past twenty years are reviewed.
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12.
Surface Physicochemical Properties of Polyethylene Glycol-Containing Polymer Nano Systems
Zhao Wang, Jingjing Sun, Ruilong Sheng
Medicine Research 2023, 7 (
3-4
): 230008-230008. DOI:
10.21127/yaoyimr20230008
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125
)
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70
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In the past decades, many polyethylene glycol (PEG)-containing polymers were developed and widely utilized to prepare functionalized nano delivery systems with hydrophilic shielding feature and high body fluid/environmental stability. Notably, some surface physicochemical properties of the PEG-containing polymers largely determined their solution properties and interactions with other biomolecules, which thus subsequently influenced their biological behaviors. In this paper, we summarized recent advances on the surface physicochemical properties of PEG-containing polymer nano systems and their impacts on self-assembly, solution stability, biomolecular interactions, as well as drug delivery. Future research outlooks in this area were also stated and discussed.
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13.
2,4-Dinitrophenylhydrazine Pre-column Derivatization: High Performance Liquid Chromatography Determination of Residual Formaldehyde in Pharmaceutical Industry and Key Parameters Analysis
Guoyin Yin, Ruilong Sheng
Medicine Research 2024, 8 (
1
): 240001-240001. DOI:
10.21127/yaoyimr20240001
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61
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Formaldehyde is a colorless gas with a pungent odor, and it is commonly used in many industries to produce resins, plastics, textiles, household products, as well as pharmaceutics. Accurate formaldehyde analysis is significant for environmental and industrial control. In this paper, formaldehyde is analyzed as its 2,4-dinitrophenylhydrazine derivative through a high performance liquid chromatography method. The method has been validated for specificity, limit of detection, limit of quantification, linearity and range, precision, accuracy, and solution stability, which showed simplicity, speed, and accuracy, making it well-suited for the determination of traceable levels of formaldehyde in the pharmaceutical industry.
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14.
Progress in Anti-Inflammatory Effect of Ellagic Acid
Meiyan Duan, Zemin Xiang, Huanhuan Xu
Medicine Research 2024, 8 (
1
): 240002-240002. DOI:
10.21127/yaoyimr20240002
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85
)
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62
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Inflammation is an adaptive physiological state caused by tissue injury, stress or infection that restores tissue homeostasis. Recent studies have shown that inflammation is a major factor in the progression of various diseases, including arthritis, inflammatory bowel disease, asthma and cancer. Currently, the treatment of inflammatory diseases mainly consists of steroids and non-steroidal anti-inflammatory drugs. However, long term use can lead to serious adverse reactions. In recent years, ellagic acid has received much attention due to its safety and anti-inflammatory activities. In this paper, we review research progress in anti-inflammatory effects of ellagic acid hoping to further understand its effectiveness and provide the guidance for development and application of clinical anti-inflammatory drugs.
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15.
A Novel Combined Nanoparticle Delivery of Poly(ADP-Ribose) Polymerase Inhibitor-Olaparib and Copper Complexes for Chemosensitization Therapy in Breast Cancer
Xiaoya Huang, Kehai Liu
Medicine Research 2023, 7 (
3-4
): 230007-230007. DOI:
10.21127/yaoyimr20230007
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101
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Chemo-sensitization therapy has gained importance in the field of anti-cancer treatment in recent years. The combination of both chemotherapy and chemosensitization has unique advantages. However, there has been relatively limited research on combination treatment using metal complexes and chemosensitizers. Herein, we reports a two-drug synergistic delivery system combining a copper complex and a chemosensitizer Olaparib in a certain ratio of safety and efficiency is the key. Polyethylenimine (PEI) was chemically-linked to activated chemosensitizer Olaparib, which was connected to a bifunctional peptide, T15, for facilitation and nuclear targeting, resulting in Ola-PEI-T15. Then, a novel metal complex Cu/Ola-PEI-T15 was obtained by Cu
2+
coordination to Ola-PEI-T15. The two therapeutic agents can be transported into the cells at the same time, giving full play to the synergistic anti-tumor effect.
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16.
Effects of Different Packaging Methods on Freshness of
Larimichthys polyactis
during Cold Storage
Zibin Ma, Ruihua Guo, Bin Bao, Wenhui Wu
Medicine Research 2024, 8 (
1
): 240004-240004. DOI:
10.21127/yaoyimr20240004
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76
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Taking
Larimichthys polyactis
, a rare seafood from Zhejiang Province, as the research object, sensory evaluation, pH, microbial analysis, texture, water retention,
K
value, total volatile basic nitrogen (TVB-N value), TCA-soluble peptide, thiobarbiturate acid value, the effects of ordinary packaging, vacuum packaging and air-conditioned packaging on the quality of
Larimichthys polyactis
during the refrigeration process were studied. The results showed that the sensory comprehensive score, texture and water retention of
Larimichthys polyactis
were gradually decreased with the extension of refrigeration time. The TVB-N value and TBA value of
Larimichthys polyactis
under the three different packaging treatments increased with the extension of time, and the change of
K
value was consistent with the TVB-N value. The TVB-N value, TBA value and
K
value of
Larimichthys polyactis
in air-conditioned packaging group increased slowly. The content of TCA-soluble peptide indicated that both vacuum and air-conditioned packages had a good effect on inhibiting protein degradation. According to the evaluation indexes, the air conditioning package is beneficial to keep the freshness of
Larimichthys polyactis
under the cold storage condition.
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17.
Contents: Med. Res. 3-4/2022
Medicine Research 2022, 6 (
3-4
): 0-.
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70
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18.
A Perspective of 6,12-Guaianolides and Their Analogues: Synthesis, Bioactivity and Structure-Activity Relationships
Ruihua Guo, Guo Y. Yin, Ruilong Sheng
Medicine Research 2024, 8 (
1
): 230010-230010. DOI:
10.21127/yaoyimr20230010
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68
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Recently, the study on 6,12-guaianolides, a family of natural guaiane-type sesquiterpenoids, has attracted increased attention in the field of chemical synthesis, pharmaceutics, and medicinal chemistry. Many 6,12-guaianolide compounds and their analogues showed remarkable molecular diversity, structural modifiability, and versatile biological and pharmacological properties, such as anticancer, antivirus, anti-inflammatory, endogenous NO production inhibition, and so on. In this paper, we summarized recent advances on the synthesis methods of 6,12-guaianolides and their analogues, briefly described their bioactivities, and elucidated the quantitative structure-activity relationship of some 6,12-guaianolides and their analogues. Furthermore, the perspectives of 6,12-guaianolides and their analogues were discussed.
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19.
Contents: Med. Res. 3-4/2023
Medicine Research 2023, 7 (
3-4
): 0-0.
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54
)
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22
)
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20.
Contents: Med. Res. 1-2/2023
Medicine Research 2023, 7 (
1-2
): 0-0.
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52
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21
)
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21.
Contents: Med. Res. 1/2024
Medicine Research 2024, 8 (
1
): 0-0.
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38
)
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19
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