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find Keyword "机制" 324 results
  • 甲状腺乳头状癌合并桥本甲状腺炎的研究进展

    自1955年Dailey等首次提出桥本甲状腺炎(HT)可以演变为甲状腺乳头状癌(PTC)后,PTC与HT的关系一直备受关注,近年来合并HT的PTC发病率呈明显的增长趋势,学者们就环境方面、分子层面、自身免疫等相关发病机制进行了研究,包括其治疗及预后,但至今未达成一致意见。现就PTC合并HT的流行病学、发病机制、治疗及预后等方面作一综述。

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  • Mechanism of immune checkpoint inhibitors related adverse events

    Most immune-related adverse event (irAE) associated with immune checkpoint inhibitors (ICIs) resulted from excessive immune response against normal organs. The severity, timing, and organs affected by these events were often unpredictable. Adverse reactions could cause treatment delays or interruptions, in rare cases, pose a life-threatening risk. The mechanisms underlying irAE involved immune cell dysregulation, imbalances in inflammatory factor expression, alterations in autoantibodies and complement activation, even dysbiosis of intestinal microorganisms. However, the mechanisms of irAE occurrence might differ slightly among organs due to variations in their structures and the functions of resident immune cells. Future research should focus on the development of targeted drugs for the prevention or treatment of irAE based on the mechanisms by which irAE occurs in different organs. A deeper understanding of the mechanisms underlying irAE occurrence would aid clinicians in effectively utilizing ICIs and provide valuable guidance for their clinical application.

    Release date:2024-02-28 02:42 Export PDF Favorites Scan
  • 癫痫发作的节律变化相关研究进展

    长期以来大量研究证实,癫痫发作具有昼夜节律,同一类型的癫痫在不同时间、不同状态发作的频率不同,其昼夜节律的形成由内源性、外源性等因素决定。明确癫痫发作的昼夜节律,总结规律,可以根据其发作节律进行干预及治疗,有助于时间疗法的开展,有效控制癫痫发作。本文就癫痫与昼夜节律的相互关系进行综述。

    Release date:2021-12-30 06:08 Export PDF Favorites Scan
  • 新型冠状病毒感染伴发癫痫及其发病机制与脑电图改变

    新型冠状病毒感染(Corona virus disease 2019,COVID-19)是一种由冠状病毒(SARS-CoV-2)导致的新型传染性疾病。关于COVID-19与癫痫之间的关系,有研究认为癫痫发作和COVID-19无明显关系;但也有不少学者认为,癫痫发作是COVID-19的继发症状,甚至是早期症状。COVID-19患者中癫痫发作发生率为0.08%~1.9%。COVID-19出现癫痫发作的直接发病机制是,SARS-COV-2能够直接进入并感染中枢神经系统,引起脑膜炎和脑炎,从而引起癫痫发作。间接发病机制包括:中枢神经系统炎症(细胞因子风暴)、血-脑屏障的破坏、凝血异常、脑卒中、线粒体功能异常、电解质紊乱。新发作和频发癫痫发作的患者可能导致预后更差,死亡率更高。COVID-19伴发癫痫患者中脑电图(Electroencephalogram,EEG)改变的主要表现为:基本节律不同程度的慢化、节律性慢活动、癫痫样放电(包括周期性放电和散在性棘波、尖波等)。癫痫患者EEG的异常部位主要分布在额叶,然而,异常EEG表现并无特异性。

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  • Research on price management of medical service in public hospitals

    The operation process of a hospital is a process of resource consumption. In order to compensate the cost of consumption, it is necessary to develop a reasonable pricing mechanism of medical services. This paper discusses the pricing mechanism of medical service from the aspects of researches on the pricing mechanism of medical service in Chinese mainland, the enlightenment of the application of the pricing mechanism of medical service in Hong Kong and Taiwan, China, as well as foreign countries, and the practice of hospital price management, so as to make suggestions on the reasonable formulation of the pricing mechanism of medical service.

    Release date:2019-01-23 01:20 Export PDF Favorites Scan
  • The pathogenesis, diagnosis and treatment progress of coronavirus disease 2019 complicated by renal injury

    With the in-depth understanding of the severe acute respiratory syndrome coronavirus 2, it has been found that the virus not only causes serious damage to the human respiratory system, but also damages the kidney system, which can be manifested as acute kidney injury, and in severe cases, renal failure can occur. Patients with coronavirus disease 2019 and chronic kidney disease are at higher risk of worsening their condition and even death. Therefore, early recognition and intervention of renal injury is particularly important for prognosis. In this paper, the clinical data of renal injury in patients with coronavirus disease 2019 were reviewed, and the possible pathogenesis, incidence, clinical features, diagnosis and treatment were proposed for reference in clinical decision-making.

    Release date:2020-12-28 09:30 Export PDF Favorites Scan
  • Target and mechanism of traditional Chinese medicine in acute pancreatitis

    Acute pancreatitis (AP) is a common clinical emergency of the abdomen with increasing incidence and lack of effective treatment. Traditional Chinese medicine, as a treasure of the Chinese people, has been used in the treatment of AP for decades with favorable therapeutic effects. Currently, clinical trials and experimental studies have shown that traditional Chinese medicine has the effects of inhibiting pancreatic enzyme activity, anti-inflammation, promoting gastrointestinal dynamics, as well as delaying the progress of AP, improving clinical symptoms, reducing related complications, and reducing the mortality rate. Therefore, traditional Chinese medicine has considerable clinic value in treating AP. Based on the related research progress and clinical practice of our team, the authors summarized the targets and mechanism of traditional Chinese medicine in treating AP.

    Release date:2024-03-23 11:23 Export PDF Favorites Scan
  • Research progress on repeated peripheral magnetic stimulation for pain

    Pain is one of the common complications of most diseases. Due to the unknown mechanism of pain, its treatment has been controversial. Repeated peripheral magnetic stimulation for pain has the advantages of non-invasiveness, painlessness, and well-targeted. However, the parameters of repeated peripheral magnetic stimulation for pain are not uniform due to various factors such as frequency, location of action, and coil type. In this paper, the parameters and efficacy of repeated peripheral magnetic stimulation for various kinds of pain such as acute and chronic low back pain, myofascial pain, migraine, peripheral neuralgia and post-traumatic pain are described, in order to providea theoretical basis for future research. In addition, the mechanism of repeated peripheral magnetic stimulation for pain has not been known, and this article will briefly summarize and explain on this.

    Release date:2020-02-24 05:02 Export PDF Favorites Scan
  • The role of retinal signaling molecules in the occurrence and progression of myopia

    With the surged prevalence of myopia, the pathogenic mechanism underlying myopia has attracted attention. At present, it is generally believed in the flied that the reduced blood perfusion in the choroid is crucial for myopigenesis. Then, in the process of myopigenesis, how are the blurred visual signals transmitted to the choroidal blood vessels through the retina and retinal pigment epithelium, leading to the reduced choroidal blood perfusion. The cellular and molecular mechanisms underpinning this process remain elusive. In recent years, the theory of scleral hypoxia has attracted much attention. Popular signaling molecules in current research include dopamine, epidermal growth factor, retinoic acid, cholinergic molecules and adenosine, etc. These factors are likely to participate in signal transduction in retina and RPE, thus causing changes in choroidal blood flow and affecting the occurrence and development of myopia. Therefore, these signaling factors and their downstream pathways may provide new ideas for the prevention and control of myopia targets.

    Release date:2023-09-12 09:11 Export PDF Favorites Scan
  • ADVANCES IN OSTEOGENIC MECHANISM AND OSTEOGENIC EFFECTS OF BONE MORPHOGENETIC PROTEIN 6

    Objective To review the osteogenic mechanism and osteogenic effects of bone morphogenetic protein 6 (BMP-6) so as to provide the basis for further research of BMP-6. Methods The related articles about the osteogenic mechanism and the osteogenic effects of BMP-6 in experimental animals were extensively summarized. Results BMP-6 from bone matrix can transduct the osteogenic signal to bone marrow mesenchymal stem cells (BMSCs) by means of Smad protein signal transduction pathway. And the BMSCs which received the signals will differentiate into osteoblasts and chondroblasts. Therefore, BMP-6 plays an important role in the development and maturation of bone and cartilage. In addition, BMP-6 has a close relation with bone diseases, such as fracture, osteoporosis, and bone tumor. Conclusion The deep research of BMP-6 is expected to provide a new therapeutic approach for treating bone diseases of nonunion, osteoarthritis, and osteoporosis.

    Release date:2016-08-31 04:12 Export PDF Favorites Scan
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