1.Hypoglycemic Effect and Mechanism of ICK Pattern Peptides
Lin-Fang CHEN ; Jia-Fan ZHANG ; Ye-Ning GUO ; Hui-Zhong HUANG ; Kang-Hong HU ; Chen-Guang YAO
Progress in Biochemistry and Biophysics 2025;52(1):50-60
Diabetes is a very complex endocrine disease whose common feature is the increase in blood glucose concentration. Persistent hyperglycemia can lead to blindness, kidney and heart disease, neurodegeneration, and many other serious complications that have a significant impact on human health and quality of life. The number of people with diabetes is increasing yearly. The global diabetes prevalence in 20-79 year olds in 2021 was estimated to be 10.5% (536.6 million), and it will rise to 12.2% (783.2 million) in 2045. The main modes of intervention for diabetes include medication, dietary management, and exercise conditioning. Medication is the mainstay of treatment. Marketed diabetes drugs such as metformin and insulin, as well as GLP-1 receptor agonists, are effective in controlling blood sugar levels to some extent, but the preventive and therapeutic effects are still unsatisfactory. Peptide drugs have many advantages such as low toxicity, high target specificity, and good biocompatibility, which opens up new avenues for the treatment of diabetes and other diseases. Currently, insulin and its analogs are by far the main life-saving drugs in clinical diabetes treatment, enabling effective control of blood glucose levels, but the risk of hypoglycemia is relatively high and treatment is limited by the route of delivery. New and oral anti-diabetic drugs have always been a market demand and research hotspot. Inhibitor cystine knot (ICK) peptides are a class of multifunctional cyclic peptides. In structure, they contain three conserved disulfide bonds (C3-C20, C7-C22, and C15-C32) form a compact “knot” structure, which can resist degradation of digestive protease. Recent studies have shown that ICK peptides derived from legume, such as PA1b, Aglycin, Vglycin, Iglycin, Dglycin, and aM1, exhibit excellent regulatory activities on glucose and lipid metabolism at the cellular and animal levels. Mechanistically, ICK peptides promote glucose utilization by muscle and liver through activation of IR/AKT signaling pathway, which also improves insulin resistance. They can repair the damaged pancrease through activation of PI3K/AKT/Erk signaling pathway, thus lowering blood glucose. The biostability and hypoglycemic efficacy of the ICK peptides meet the requirements for commercialization of oral drugs, and in theory, they can be developed into natural oral anti-diabetes peptide drugs. In this review, the structural properties, activity and mechanism of ICK pattern peptides in regulating glucose and lipid metabolism were summaried, which provided a reference for the development of new oral peptides for diabetes.
2.Hepatitis E virus infection among blood donors in Ningbo
Mingxi PENG ; Yiyu LIU ; Huyan MAO ; Dan LIN ; Lu XIN ; Ning SHU ; Jianfeng HAN ; Feng DING
Chinese Journal of Blood Transfusion 2025;38(1):7-12
[Objective] To investigate the infection status and characteristics of HEV among voluntary blood donors in Ningbo, and to provide a basis for improving the blood screening strategy. [Methods] A total of 12 227 blood samples from voluntary blood donors in Ningbo from June 2022 to May 2023 were tested for HEV serology, enzymology, and nucleic acid testing. Furthermore, HEV gene sequencing was performed for genotyping analysis, and donors with reactive nucleic acid testing results were followed up to confirm their infection status. [Results] The reactivity rate of HEV Ag, anti-HEV IgM and anti-HEV IgG was 0.098%, 0.899% and 29.198%, respectively. There was no difference in the reactivity of anti-HEV IgM and anti-HEV IgG between genders, donation frequencies and donation types (P>0.05). The reactivity rate increased significantly with age (P<0.05). The rate of ALT disqualification (ALT>50U/L) was significantly higher than that in non-reactive samples (P<0.05). The HEV Ag reactivity rate (0.098%) was not correlated with gender, donation frequency, donation type or age. One HEV RNA positive case was found, with a positive rate of 0.008%(1/12 227). It was confirmed to be hepatitis E virus genotype 3 by sequencing analysis. Apart from HEV Ag reactivity, all other blood safety screening items were non-reactive, suggesting this case might be in the acute infection phase. The follow-up results showed that all indicators of the donor's previous blood donation were non-reactive. [Conclusion] Pre-donation ALT detection can reduce the risk of transfusion-transmitted HEV (TT-HEV) to a certain extent, and the effective way to prevent TT-HEV is to detect HEV RNA and serology of donor blood.
3.Palpitations, Shortness of Breath, Weakness in Limbs, Edema, and Dyspnea: A Rare Inflammatory Myopathy with Positive Aniti-mitochondrial Antibodies and Cardiac Involvement
Chunsu LIANG ; Xuchang ZHANG ; Ning ZHANG ; Lin KANG ; Xiaohong LIU ; Jiaqi YU ; Yingxian LIU ; Lin QIAO ; Yanli YANG ; Xiaoyi ZHAO ; Ruijie ZHAO ; Na NIU ; Xuelian YAN
Medical Journal of Peking Union Medical College Hospital 2025;16(1):248-255
This article presents a case study of a patient who visited the Geriatric Department of Peking Union Medical College Hospital due to "palpitations, shortness of breath for more than 2 years, limb weakness for 6 months, edema, and nocturnal dyspnea for 2 months". The patient exhibited decreased muscle strength in the limbs and involvement of swallowing and respiratory muscles, alongside complications of heart failure and various arrhythmias which were predominantly atrial. Laboratory tests revealed the presence of multiple autoantibodies and notably anti-mitochondrial antibodies. Following a comprehensive multidisciplinary evaluation, the patient was diagnosed with anti-mitochondrial antibody-associated inflammatory myopathy. Treatment involved a combination of glucocorticoids and immunosuppressants, along with resistance exercises for muscle strength and rehabilitation training for lung function, resulting in significant improvement of clinical symptoms. The case underscores the importance of collaborative multidisciplinary approaches in diagnosing and treating rare diseases in elderly patients, where careful consideration of clinical manifestations and subtle abnormal clinical data can lead to effective interventions.
4.Role and mechanism of platelet-derived growth factor BB in repair of growth plate injury
Hongcheng PENG ; Guoxuan PENG ; Anyi LEI ; Yuan LIN ; Hong SUN ; Xu NING ; Xianwen SHANG ; Jin DENG ; Mingzhi HUANG
Chinese Journal of Tissue Engineering Research 2025;29(7):1497-1503
BACKGROUND:In the initial stage of growth plate injury inflammation,platelet-derived growth factor BB promotes the repair of growth plate injury by promoting mesenchymal progenitor cell infiltration,chondrogenesis,osteogenic response,and regulating bone remodeling. OBJECTIVE:To elucidate the action mechanism of platelet-derived growth factor BB after growth plate injury. METHODS:PubMed,VIP,WanFang,and CNKI databases were used as the literature sources.The search terms were"growth plate injury,bone bridge,platelet-derived growth factor BB,repair"in English and Chinese.Finally,66 articles were screened for this review. RESULTS AND CONCLUSION:Growth plate injury experienced early inflammation,vascular reconstruction,fibroossification,structural remodeling and other pathological processes,accompanied by the crosstalk of chondrocytes,vascular endothelial cells,stem cells,osteoblasts,osteoclasts and other cells.Platelet-derived growth factor BB,as an important factor in the early inflammatory response of injury,regulates the injury repair process by mediating a variety of cellular inflammatory responses.Targeting the inflammatory stimulation mediated by platelet-derived growth factor BB may delay the bone bridge formation process by improving the functional activities of osteoclasts,osteoblasts,and chondrocytes,so as to achieve the injury repair of growth plate.Platelet-derived growth factor BB plays an important role in angiogenesis and bone repair tissue formation at the injured site of growth plate and intrachondral bone lengthening function of uninjured growth plate.Inhibition of the coupling effect between angiogenesis initiated by platelet-derived growth factor BB and intrachondral bone formation may achieve the repair of growth plate injury.
5.The effect of rutaecarpine on improving fatty liver and osteoporosis in MAFLD mice
Yu-hao ZHANG ; Yi-ning LI ; Xin-hai JIANG ; Wei-zhi WANG ; Shun-wang LI ; Ren SHENG ; Li-juan LEI ; Yu-yan ZHANG ; Jing-rui WANG ; Xin-wei WEI ; Yan-ni XU ; Yan LIN ; Lin TANG ; Shu-yi SI
Acta Pharmaceutica Sinica 2025;60(1):141-149
Metabolic-associated fatty liver disease (MAFLD) and osteoporosis (OP) are two very common metabolic diseases. A growing body of experimental evidence supports a pathophysiological link between MAFLD and OP. MAFLD is often associated with the development of OP. Rutaecarpine (RUT) is one of the main active components of Chinese medicine Euodiae Fructus. Our previous studies have demonstrated that RUT has lipid-lowering, anti-inflammatory and anti-atherosclerotic effects, and can improve the OP of rats. However, whether RUT can improve both fatty liver and OP symptoms of MAFLD mice at the same time remains to be investigated. In this study, we used C57BL/6 mice fed a high-fat diet (HFD) for 4 months to construct a MAFLD model, and gave the mice a low dose (5 mg·kg-1) and a high dose (15 mg·kg-1) of RUT by gavage for 4 weeks. The effects of RUT on liver steatosis and bone metabolism were then evaluated at the end of the experiment [this experiment was approved by the Experimental Animal Ethics Committee of Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences (approval number: IMB-20190124D303)]. The results showed that RUT treatment significantly reduced hepatic steatosis and lipid accumulation, and significantly reduced bone loss and promoted bone formation. In summary, this study shows that RUT has an effect of improving fatty liver and OP in MAFLD mice.
6.A Case Report of Hypothyrotropin Hypothyroidism Caused by Roxadustat
Xuelian YAN ; Bingying TANG ; Xuan QU ; Ning ZHANG ; Lin KANG
Medical Journal of Peking Union Medical College Hospital 2025;16(2):519-522
Roxadustat is the world's first small molecule hypoxia-inducible factor prolyl hydroxylase inhibitor. Its adverse effect of causing hypothyroidism with low thyroid-stimulating hormone (TSH) is relatively rare and manifests subtly in elderly patients with multiple coexisting diseases. This article reports a case of an elderly patient with renal anemia who developed reversible low-TSH hypothyroidism after taking roxadustat for 12 days, with a significant decrease in thyroid hormone levels. After discontinuing roxadustat for 15 days, the thyroid hormone levels gradually returned to normal. Due to the worsening of renal anemia, the patient took roxadustat again, and 9 days later, the thyroid function-related indicators decreased upon re-examination, leading to the initiation of levothyroxine replacement therapy. In conjunction with relevant literature, this article analyzes the adverse reactions that occur during the oral administration of roxadustat in elderly patients with chronic kidney disease, aiming to provide reference for drug treatment of such patients.
7.Construction of a family-centered care program for children with tuberculosis based on the double ABC-X model and intervention effects evaluation
Ning DONG ; Lei SHEN ; Yonghong TAO ; Yuanhao WU ; Xiaowen WEI ; Lin ZHANG
Shanghai Journal of Preventive Medicine 2025;37(2):184-189
ObjectiveTo construct a family-centered care model for children with tuberculosis based on the double ABC-X model, and to evaluate its clinical effects. MethodsFrom December 2022 to October 2023, 64 newly admitted children with tuberculosis who met the criteria and their caregivers were recruited from the tuberculosis department of Shanghai Public Health Clinical Center were randomly divided into an experimental group (32 cases) and a control group (32 cases).The control group was given a conventional health care, while the experimental group was given a family-centered health care intervention based on the double ABC-X model, in which a multidisciplinary care team provided personalized information and emotional support for the caregivers and their children. Medication adherence of the children, caregiver’s teading burden, and disease management competence were compared between the 2 groups. ResultsA total of 29 cases in the experimental group and 27 cases in the control group completed the intervention. At 12 weeks of intervention, the medication adherence score (7.72±0.45 vs 7.41±0.50, P<0.05) and disease management competence score (36.97±7.85 vs 31.56±7.30, P<0.05) were higher in the experimental group than that in the control group while the caregiving burden score (31.79±13.40 vs 40.04±9.01, P<0.05) and difficulty of disease management score (30.41±12.41 vs 38.56±9.48, P<0.05) were lower than that in the control group. At 24 weeks of intervention, the medication adherence score (7.34±0.97 vs 6.70±1.14, P<0.05) and disease management competence score (42.07±6.93 vs 35.63±7.32, P<0.05) were higher in the experimental group than that in the control group as well, but the caregiving burden score (31.62±11.72 vs 39.63±10.17, P<0.05) and difficulty of disease management score (30.59±10.87 vs 37.81±9.32, P<0.05) were lower than that in the control group. ConclusionFamily-centered care based on the double ABC-X model can effectively promote medication adherence among children with tuberculosis, reduce caregivers’ care burden and disease management difficulties, and improve caregiver’s disease management competence.
8.Overview of Studies on the Intervention of Chinese Medicinals in Energy Metabolism Reconstruction in Heart Failure
Xinyue NING ; Wenxiao LI ; Zhenyu ZHAO ; Yang GUO ; Panpan ZHOU ; Ludan ZHAO ; Lin LI
Journal of Traditional Chinese Medicine 2025;66(10):1073-1077
Energy metabolism reconstruction is the new target of the treatment of heart failure. By combing the researches of Chinese medicinals for energy metabolism reconstruction of heart failure, it was found that Chinese medicinal compound formula and single Chinese medicinal have a certain role in regulating energy metabolism, mainly through three aspects, including the optimization of substrate utilization, improvement of mitochondrial structure, function, and homeostasis, and improvement of mitochondrial energy transport, so as to make the energy metabolism of the cardiomyocyte adjusted in the direction of beneficial to the organism, increasing the supply of energy, and improving the cardiac function.
9.Clinical and laboratory features and prognosis of anti-leucine rich glioma inactivated 1 antibody encephalitis
Journal of Apoplexy and Nervous Diseases 2025;42(6):517-522
Objective To investigate the clinical features,laboratory findings,and prognosis of patients with autoimmune encephalitis positive for leucine rich glioma inactivated 1(LGI1)antibody. Methods We reviewed the clinical data of 11 patients with anti-LGI1 encephalitis hospitalized in Fu Yang People's Hospital from October 2019 to December 2024. Results All the 11 patients(100%)had cognitive function involvement,9(81.8%)had epileptic seizures,5(45.5%)had mental and behavioral abnormalities,4(36.4%)had sleep disorders,3(27.3%)had autonomic nervous dysfunction,2(18.2%)had faciobrachial dystonic seizures(FBDS),2(18.2%)had facial numbness,and 1(9.1%)had phantosmia and pruritus in both eyes and the neck. LGI1 antibody was positive in the serum of all the cases(100%)and present in the cerebrospinal fluid of 8 cases(72.3%). Seven cases(63.6%)had hyponatremia,and 5 cases(45.5%)also had hypophosphatemia,hypocalcemia,and hypomagnesemia in addition to blood sodium lower than 134 mmol/L. Intracranial abnormalities were detected in 7 cases(63.6%)on magnetic resonance imaging. Electroencephalogram abnormalities were recorded in 6 cases(54.5%). After immunosuppressive treatment,2 cases(18.2%)had recurrent symptoms,and 2 cases(18.2%)had residual mild memory impairment. In terms of prognosis,the modified Rankin Scale scores were generally favorable. Conclusion Anti-LGI1 encephalitis manifests as convulsions,FBDS,memory decline,mental and behavioral abnormalities,autonomic nervous dysfunction,sleep disorders,hyponatremia,and multiple electrolyte disorders such as hypomagnesemia,hypocalcemia,and hypophosphatemia when blood sodium is below 134 mmol/L. The prognosis with immunosuppressive treatment is favorable,but recurrent symptoms may occur.
10.Lung cancer disease burden and changing trends of residents in Yinchuan City in 2013-2022
Xiaoxia WANG ; Rongrong LIN ; Ning HUI
Journal of Public Health and Preventive Medicine 2025;36(5):45-49
Objective To analyze the change trend of lung cancer death, incidence and disease burden of residents in Yinchuan City from 2013 to 2022, and to provide a scientific basis for the prevention and treatment of lung cancer in Yinchuan City. Methods The lung cancer registration data of residents in Yinchuan City from 2013 to 2022 were collected and sorted to obtain the incidence and mortality rates of lung cancer. The years lived with disability (YLD), years of life lost (YLL), and disability adjusted of life years(DALY) were calculated. The Joinpoint regression model was used to analyze the trend of onset and death of lung cancer. Results The lung cancer incidence rate, standardized incidence rate, mortality rate, standardized mortality rate, YLL rate, YLD rate and DALY rate among Yinchuan residents from 2013 to 2022 all showed a fluctuating upward trend. During the 10 years from 2013 to 2022, the average annual percent change (AAPC) of the above indicators was 1.24%, 1.04%, 6.94%, 6.11%, 8.99%, 0.93%, and 8.95%, respectively. In the past 10 years, the above indicators showed a rapid upward trend with age, especially in the age group over 45 years old. The analysis also showed that all indicators were much higher in men than in women. The YLL was the main component of DALY, accounting for more than 75%. Conclusion During the period of 2013-2022, the disease burden caused by lung cancer in Yinchuan City is relatively heavy. People over 45 years old, especially men, should become the key prevention and control group. Scientific and effective intervention measures should be taken to further promote the early diagnosis and treatment of lung cancer and reduce the burden of lung cancer.


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