• 제목/요약/키워드: toxic and side effects

검색결과 121건 처리시간 0.033초

Characterization of a conjugated polysuccinimide-carboplatin compound

  • Sun Young Lee;Chang Hoon Chae;Miklos Zrinyi;Xiangguo Che;Je Yong Choi;Dong-Hyu Cho
    • The Korean Journal of Physiology and Pharmacology
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    • 제27권1호
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    • pp.31-38
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    • 2023
  • Carboplatin, an advanced anticancer drug with excellent efficacy against ovarian cancer, was developed to alleviate the side effects that often occur with cisplatin and other platinum-based compounds. Our study reports the in vitro characteristics, viability, and activity of cells expressing the inducible nitric oxide synthase (iNOS) gene after carboplatin was conjugated with polysuccinimide (PSI) and administered in combination with other widely used anticancer drugs. PSI, which has promising properties as a drug delivery material, could provide a platform for prolonging carboplatin release, regulating its dosage, and improving its side effects. The iNOS gene has been shown to play an important role in both cancer cell survival and inhibition. Herein, we synthesized a PSI-carboplatin conjugate to create a modified anticancer agent and confirmed its successful conjugation. To ensure its solubility in water, we further modified the structure of the PSI-carboplatin conjugate with 2-aminoethanol groups. To validate its biological characteristics, the ovarian cancer cell line SKOV-3 and normal ovarian Chinese hamster ovary cells were treated with the PSI-carboplatin conjugate alone and in combination with paclitaxel and topotecan, both of which are used in conventional chemotherapy. Notably, PSI-carboplatin conjugation can be used to predict changes in the genes involved in cancer growth and inhibition. In conclusion, combination treatment with the newly synthesized polymer-carboplatin conjugate and paclitaxel displayed anticancer activity against ovarian cancer cells but was not toxic to normal ovarian cancer cells, resulting in the development of an effective candidate anticancer drug without severe side effects.

Research progress on hydrogel-based drug therapy in melanoma immunotherapy

  • Wei He;Yanqin Zhang;Yi Qu;Mengmeng Liu;Guodong Li;Luxiang Pan;Xinyao Xu;Gege Shi;Qiang Hao;Fen Liu;Yuan Gao
    • BMB Reports
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    • 제57권2호
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    • pp.71-78
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    • 2024
  • Melanoma is one of the most aggressive skin tumors, and conventional treatment modalities are not effective in treating advanced melanoma. Although immunotherapy is an effective treatment for melanoma, it has disadvantages, such as a poor response rate and serious systemic immune-related toxic side effects. The main solution to this problem is the use of biological materials such as hydrogels to reduce these side effects and amplify the immune killing effect against tumor cells. Hydrogels have great advantages as local slow-release drug carriers, including the ability to deliver antitumor drugs directly to the tumor site, enhance the local drug concentration in tumor tissue, reduce systemic drug distribution and exhibit good degradability. Despite these advantages, there has been limited research on the application of hydrogels in melanoma treatment. Therefore, this article provides a comprehensive review of the potential application of hydrogels in melanoma immunotherapy. Hydrogels can serve as carriers for sustained drug delivery, enabling the targeted and localized delivery of drugs with minimal systemic side effects. This approach has the potential to improve the efficacy of immunotherapy for melanoma. Thus, the use of hydrogels as drug delivery vehicles for melanoma immunotherapy has great potential and warrants further exploration.

Development of Super-K562 Cells Producing Erythropoietin in Glucose-Free Medium

  • 이통일;최연숙;배근원;김익환
    • 한국생물공학회:학술대회논문집
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    • 한국생물공학회 2002년도 생물공학의 동향 (X)
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    • pp.265-268
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    • 2002
  • Lactate and ammonia are two major toxic waste products formed during mammalian cell culture. Accumulation of the side products have negative effects of on cell growth and specific production rate. In this study, K-562 cells were used as the host cell of a recombinant protein. Effects of carbon sources were invetigated focused on the cell culture span, the accumulation of lactate and ammonia in culture of recombinant K-562 cells.

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상황버섯에 대한 문헌적 고찰 (A Literary Study on Phellinus Iinteus)

  • 조희철;김광호;권기록
    • 대한약침학회지
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    • 제6권3호
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    • pp.57-63
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    • 2003
  • Background : This study was to investigate existing studies on the mushroom Phellinus linteus for possible applications in treating hard to cure diseases and uses in herbal acupuncture as the above is known to have an anti-cancer effects and stimulating the immune system. Results : Based on the literary consideration, the following results were obtained : 1. Proteins and polysaccharides of the Class Basidiomycetes activate the host immune system for anti-cancer action without known side effects, thus it can be given for the prevention and treatment of cancer as a supplement. Phellinus linteus mushroom showed the most significant effects. 2. The Phellinus linteus mushroom is a fungi in the family Hymenochaetaceae and Phellinus, under the class Basidiomycetes. Phellinus linteus can be often found on the trunk of mulberry trees and other latifoliate trees. 3. The characteristics of Phellinus linteus are sweet, neutral in temperature, non-toxic, dissipate the stagnated blood, stop bleeding, invigorate the blood circulation and remove stasis, and nourish qi. It has been used for treating continuous menstrual discharge among the female patients and removing masses in the abdomen to name a few. 4. Phellinus linteus contains agaric acid, fatty acid, C23 and other numerous enzymes. 5. Phellinus linteus is known to have anti-cancer and anti-oxidant effects, stimulation of the immune system, as well as anti-inflammatory effects, inhibition of angiogenesis, and analgesic actions.

A study on the history and present state of toxicity of herbal medicine

  • Lee, Young-Seob;Kang, Ok-Hwa;Choi, Jang-Gi;Kim, Nan-Young;Lee, Joo-Hee;Lee, Ki-Nam;Kwon, Dong-Yeul
    • Journal of Evidence-Based Herbal Medicine
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    • 제2권2호
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    • pp.39-44
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    • 2009
  • All medicines are poisonous, and there are none free from poison. Thus, all things may be regarded as poisonous. And poison and medicine is the same one of which actions differ from each other. Medicine may be good medicine or poison according to doses, whether chemical medicine or herbal one. Herbal medicine falls into the category of natural materials. From ancient times humankind has Been using animals and plants as food, but on the other hand, chemical medicine is unfamiliar relatively to natural materials. Somecine is unfamilis, absorbed into the human boan, are transformed and help deemicfication. Other medicines protect the gastric mucous membrane and are demulcent, and inhibithemica materials from being absorbed. In some cases, ine is unfamilis function as deemicfiers in combination withhemica materials, and remove the toxicity and side effect caused by drug properties. Herbal medicine causes less side effects, as compared to chemical one, and thus can work effectively. As the case stands, some deem that herbal medicine does not cause problems despite high dose and long-term use because it is nontoxic or low-toxic. However, herbal medicine may be also poisonous though it is used at a very low dose. Even a deadly poison may produce therapeutic results satisfactorily without side effects, on condition that it is used properly.

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신증후군 환아에서 발생한 독성표피괴사용해 치료를 위해 사용된 고용량 스테로이드로 인한 정신질환 1례 (A case of steroid-induced psychosis in a child having nephrotic syndrome with toxic epidermal necrolysis)

  • 김세윤;이재민;박용훈
    • Clinical and Experimental Pediatrics
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    • 제53권3호
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    • pp.437-441
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    • 2010
  • 독성표피괴사용해(TEN)와 스티븐-존슨 증후군(SJS)은 약물이나 감염에 의해 발생하는 피부점막을 침범하는 드물지만 치명적인 질병이다. 스테로이드는 TEN의 치료에 많이 이용되어왔지만, 아직까지도 논쟁중이다. 스테로이드에 의한 정신과적 영향은 두통, 불면증, 우울증, 심리질환 등이 있다. 스테로이드에 의한 정신질환에서 치료는 스테로이드의 감량 또는 중단이고, 항정신성 약물을 투여한다. 신증후군으로 진단된 11세 남아에서 스테로이드 치료 후 관해상태에서 유지치료를 시행하고 있던 중에 TEN이 발생하였다. 저자들은 이 환아에서 치료목적으로 투여한 고용량 스테로이드 정맥주사로 인해 정신질환이 동반되었고, 이후 스테로이드 감량과 항정신성 약물과 면역글로불린으로 증상이 호전되는 것을 경험하여 이를 보고하는 바이다.

cis-Dichlorodiammineplatinum (II)이 흰쥐 경골의 골단연골판에 미치는 영향 (Effects of cis-Dichlorodiammineplatinum (II) on the Epiphyseal Plate of the Tibia in the Albino Rat)

  • 김종관;김원규;정호삼
    • Applied Microscopy
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    • 제26권2호
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    • pp.197-206
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    • 1996
  • cis-Dichlorodiammineplatinum (II) (cis-Platin) inhibits the proliferation and growth of the tumor cells by way of inhibiting DNA and protein synthesis of the cancer cells. Although cis-Platin is very effective antitumor drug, it also produces many other side effects. Thus the author has studied the effects of cis-Platin on the proximal epiphyseal plate in the tibia of the rat. The results were as follows: In the chondrocyte of the proliferative zone, sacculated, and fragmented cisternae of rough endoplasmic reticulum, some mitochondria with disorganized mitochondrial cristae and distorted procollagens were observed, and in the matrix some large matrix granules and dispersed collagen fibrils were revealed on the 1st, 3rd day and 1st week group of cis-Platin treated rats. In the chondrocyte of the proliferative zone of cis-Platin treated rats on the 2nd and 3rd week group, parallely arranged rough endoplasmic reticulum and many procollagens were shown, and in the matrix a number of large matrix granules and many small matrical granules as well as collagen fibrils were revealed. Consequently it is suggested that though cis-Platin induces the degenerative changes of the chondrocyte resulting in components of the cartilagenous matrix, these toxic effects are regressed with time.

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잉어(Cyprinus carpio)에서 어류 구충제에 대한 N-acetylcysteine(NAC)의 독성 저감 효과 (Attenuating Effects of N-acetylcysteine (NAC) against Fish Parasiticide-induced Toxicity in Carp Cyprinus carpio)

  • 박관하
    • 한국수산과학회지
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    • 제44권5호
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    • pp.484-489
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    • 2011
  • This study examined whether N-acetylcysteine (NAC), a glutathione precursor, could attenuate toxic effects of three fish anti-parasitic agents, trichlorfon, hydrogen peroxide ($H_2O_2$) and formalin, all of which are known to exert side effects through free radical production. Common carp Cyprinus carpio were fed with NAC (approx. 50 mg/kg/day) for 3 consecutive days prior to anti-parasite bathing for a 24 hr period. Mortality rates were examined during this 24 hr bathing period, and selected hematological and biochemical parameters were also assessed at the termination of anti-parasite exposure. The mortality rates and plasma glucose elevations caused by all three anti-parasitics were significantly reduced by NAC pretreatment. Trichlorfon, but not $H_2O_2$ or formalin, elevated plasma levels of aspartatetransaminase (AST) and alanine-transaminase (ALT), and these elevations were attenuated by NAC. There was no change in hematocrit values in any treatment. The results provide evidence for the attenuating effects of NAC against toxicity caused by anti-parasite agents that act through free radical-producing properties. The results found in this study also suggest that NAC may be administered to fish to minimize toxicity in fish parasiticide use.

유방암 환자의 cyclophosphamide, doxorubicin 유발 부작용에 대한 약침을 포함한 통합 암 치료 1례 (A Case Report of Cyclophosphamide plus Doxorubicin-induced Side effects in Patient with Both Sides Breast Cancer Treated with Integrative Medicine Therapy Including Pharmacopuncture.)

  • 김민서;정유진;홍상훈
    • 대한암한의학회지
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    • 제23권1호
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    • pp.33-43
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    • 2018
  • Objectives: To observe the mitigating effects of a Traditional Korean Medicine(TKM) treatment program especially including pharmacopuncture, with Cyclophosphamide and doxorubicin chemotherapy on a both sides breast cancer patient. Methods: AA 74 year-old female patient diagnosed with both sides breast cancer (Right) pT1bpN0M0, (Left) pT1cpN1Mx was admitted to hospital of Dong-eui university in May of 2017. She received Cyclophosphamide and Doxorubicin from May $31^{st}$ to August $2^{nd}$, 2017 followed by TKM treatment consisting of herbal medicine, acupuncture, moxibustion and pharmacopuncture (Trionycis Carapax, Non-toxic Bee Venom, and Cultivated Wild Ginseng Extract) for a period of almost 4 months, from May $13^{th}$ to August $19^{th}$, 2017. Symptoms were evaluated by the grade of chief complaints refer to Common Terminology Criteria for Adverse Events (CTCAE) and Eastern Cooperative Oncology Group (ECOG). Results: TKM including pharmacopuncture alleviated chemotherapy-induced nausea, fatigue, joint pain, diarrhea, insomnia. Conclusions: This case study potentiates TKM with pharmacopuncture's significant efficacy in aiding breast cancer patients suffering from Cyclophosphamide plus Doxorubicin induced adverse effects. Further research should take place for clear understanding of the exact amount of dosage and safety. Moreover it must be accompanied by long-term follow up researches.