• Title/Summary/Keyword: pathology review

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microRNA-29b: an Emerging Player in Human Cancer

  • Liu, Hao;Wang, Bin;Lin, Jie;Zhao, Liang
    • Asian Pacific Journal of Cancer Prevention
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    • v.15 no.21
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    • pp.9059-9064
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    • 2014
  • MicroRNAs (miRNAs) are ubiquitously expressed small, non-coding RNAs that negatively regulate gene expression at a post transcriptional/translational level. They have emerging as playing crucial roles in cancer at all stages ranging from initiation to metastasis. As a tumor suppressor miRNA, aberrant expression of microRNA-29b (miR-29b) has been detected in various types of cancer, and its disturbance is related with tumor development and progression. In this review, we summarize the latest findings with regard to the tumor suppressor signatureof miR-29b and its regulatory mechanisms. Our review highlights the diverse relationships between miR-29b and its target genes in malignant tumors.

Fine Needle Aspiration Cytology of Parathyroid Neoplasms - A Review of Three Cases - (부갑상샘 종양의 세침흡인 세포소견 -3예 보고-)

  • Kim, Lucia;Han, Jee-Young;Park, In-Suh;Choi, Suk-Jin;Kim, Joon-Mee;Chu, Young-Chae
    • The Korean Journal of Cytopathology
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    • v.18 no.1
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    • pp.74-80
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    • 2007
  • Parathyroid tumors may be difficult to distinguish from thyroid follicular lesions, especially when a tumor is nonfunctioning. We report here two cases of asymptomatic parathyroid carcinoma preoperatively misdiagnosed as thyroid follicular lesions, and one case of parathyroid adenoma showing hyperparathyroidism, and review the cytologic features favoring the diagnosis of parathyroid neoplasm. The cytologic findings that are characterized by clean background, monomorphic small cells, cohesive three-dimensional papillary clusters, small tight clusters with scattered naked nuclei, and well-defined clear cytoplasm favor a diagnosis for the parathyroid lesions. Cytologic findings such as macrofollicular structure, presence of colloid and macrophages, and presence of perivacuolar cytoplasmic granules on May-Grunwald-Giemsa stain support a diagnosis of a thyroid follicular lesion. The cytomorphology of parathyroid tumors is so variable that the distinction from a thyroid lesion cannot be based on the presence or absence of a single feature only but on the cytologic features as a whole.

Systemic Review on Forest Healing Journals (산림 치유 관련 논문에 관한 체계적 고찰)

  • Sun, Seung-Ho;Lee, Seon-Goo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.24 no.4
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    • pp.566-570
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    • 2010
  • This review was conducted to investigate clinical trial trend, clinical effect, and study methods of forest healing. Literature search was performed using the search engines of eight electronic databases from inception to march 2010 without language limitation. The search terms were "forest healing", "forest experience", "forest therapy", "forest treatment", "clinical trial", and "clinical study". Inclusion criteria were randomized controlled trials (RCTs) among all kinds of study searched about forest healing. Selection literature and data extraction was performed by authors(SH Sun and SG Lee) independently. Total three studies were selected finally. The methodological quality in all study was low because of poor reporting. Study indications were metal health, depression, self-esteem, and stress. The scale of studies was very small, which was the level of pilot study. There were no description for obtaining informed consent and being reviewed by Institutional Review Board (IRB), and could be any problems for statistical method in any studies. It is difficult to accept the fact that each studies had the significant effect for study indications in the results of studies. It is concluded that the evidence that health healing have a significant effect is insufficient. Further systematic and methodological study and well-designed clinical trial will be needed.

Review of Experimental Researches on Bee Venom Pharmacopuncture Therapy for Chemotherapy-induced Peripheral Neuropathy (항암화학요법 유발 말초신경병증에 대한 봉독 약침 요법의 효과 및 기전에 대한 실험연구 고찰)

  • Kwon, Bo In;Woo, Yeonju;Kim, Joo-Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.35 no.1
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    • pp.1-7
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    • 2021
  • Chemotherapy-induced peripheral neuropathy (CIPN) is one of the most common dose-limiting side effects of neurotoxic chemotherapeutic agents that lead to decreased quality of life and dose reduction, delay or even cessation of treatment. The purpose of this systematic review is to evaluate the effect and the underlying mechanisms of bee venom (BV) pharmacopuncture therapy for CIPN in animal models. We searched for the available experimental literature using BV for CIPN through the Pubmed databases. Ten experimental studies were finally included in this review. In the oxaliplatin or paclitaxel-induced CIPN animal model, BV significantly relieved pain caused both mechanical and cold stimulation. It was suggested that the effect of BV is mediated by the stimulation effect of spinal α1- and α2-adrenergic receptors as a potential mechanism. In the future, more experimental studies are needed.

Cone-beam computed tomography artifacts in the presence of dental implants and associated factors: An integrative review

  • Terrabuio, Bianca Rodrigues;Carvalho, Caroline Gomes;Peralta-Mamani, Mariela;da Silva Santos, Paulo Sergio;Rubira-Bullen, Izabel Regina Fischer;Rubira, Cassia Maria Fischer
    • Imaging Science in Dentistry
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    • v.51 no.2
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    • pp.93-106
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    • 2021
  • Purpose: This study was conducted to review the literature regarding the types of cone-beam computed tomography (CBCT) artifacts around dental implants and the factors that influence their formation. Materials and Methods: A search strategy was carried out in the PubMed, Embase, and Scopus databases to identify published between 2010 and 2020, and 9 studies were selected. The implants included 306 titanium, titanium-zirconium, and zirconia implants, as well as 5 titanium cylinders. Results: The artifacts around the implants were the beam-hardening artifact, the streaking artifact, and band-like radiolucent areas. Some factors that influenced the formation of artifacts were the implant material, bone type, evaluated regions, distance, type of CBCT, field of view (FOV) size, milliamperage, peak kilovoltage (kVp), and voxel size. The beam-hardening artifact was the most widely reported, and it was minimized in protocols with a smaller FOV, larger voxels, and higher kVp. Conclusion: The risk and benefit of these protocols in individuals with dental implants must be considered, and clinical examinations and complementary radiographs play an essential role in implantology.

Molecular Pathology of Gastric Cancer

  • Kim, Moonsik;Seo, An Na
    • Journal of Gastric Cancer
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    • v.22 no.4
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    • pp.273-305
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    • 2022
  • Gastric cancer (GC) is one of the most common lethal malignant neoplasms worldwide, with limited treatment options for both locally advanced and/or metastatic conditions, resulting in a dismal prognosis. Although the widely used morphological classifications may be helpful for endoscopic or surgical treatment choices, they are still insufficient to guide precise and/or personalized therapy for individual patients. Recent advances in genomic technology and high-throughput analysis may improve the understanding of molecular pathways associated with GC pathogenesis and aid in the classification of GC at the molecular level. Advances in next-generation sequencing have enabled the identification of several genetic alterations through single experiments. Thus, understanding the driver alterations involved in gastric carcinogenesis has become increasingly important because it can aid in the discovery of potential biomarkers and therapeutic targets. In this article, we review the molecular classifications of GC, focusing on The Cancer Genome Atlas (TCGA) classification. We further describe the currently available biomarker-targeted therapies and potential biomarker-guided therapies. This review will help clinicians by providing an inclusive understanding of the molecular pathology of GC and may assist in selecting the best treatment approaches for patients with GC.

IRB review points for studies utilizing paraffin blocks archived in the pathology laboratory

  • Kim, Yong-Jin;Jeong, Chang Rok;Park, Jeong Sik
    • Journal of Yeungnam Medical Science
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    • v.35 no.1
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    • pp.36-39
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    • 2018
  • In the personalized medicine era, utilizing paraffin blocks in pathology archives for investigating human diseases has come into the limelight. This archived material with clinical data will reduce the research time and could prevent new patient recruitment to obtain tissue for research. However, the clause indicating the necessity of consent from human material providers in the Korean Bioethics and Safety Act has made the Institutional Review Board (IRB) deny permission to use paraffin blocks for research without consent, and alternatively to get the same before starting an experiment. Written consent may be waived off in studies using paraffin blocks with anonymous status or conditions not linked to personal information by applying the paragraph 3, article 16 of the current Bioethics and Safety Act. Also, the IRB should recommend researchers to preserve the blocks as medical records of patients in long-term archives.

Vascular tumors of the liver: A brief review

  • Sujata Sarangi;Balamurugan Thirunavukkarasu;Sudeep Khera;Selvakumar B;Taruna Yadav
    • Annals of Hepato-Biliary-Pancreatic Surgery
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    • v.27 no.4
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    • pp.329-341
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    • 2023
  • Vascular tumors of the liver are mesenchymal lesions from endothelial cells. They range from common benign lesions such as haemangioma, intermediate tumors like Kaposi sarcoma, and perivascular epithelioid cell tumor to malignant tumors such as hepatic epithelioid hemangioendothelioma and hepatic angiosarcoma in adults. Pediatric vascular tumors of the liver also include benign, locally aggressive, borderline, and malignant masses with haemangiomas being the most common benign tumors and epithelioid hemangioendothelioma being an uncommon pediatric malignancy. The list of these lesions is completed by nodular regenerative hyperplasia, solitary fibrous tumour, and hepatic small vessel neoplasms (HSVN). Some of these tumors are uncommon and rare. This review article aimed to enumerate hepatic vascular tumors along with their imaging, histopathology, molecular findings for accurate diagnosis that can result in better management.

Status of Pathology Services and Molecular Pathology in Sub-Saharan Africa: Implications for Combating Breast Cancer

  • Wajana Lako LABISSO
    • Korean Journal of Clinical Laboratory Science
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    • v.55 no.3
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    • pp.121-131
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    • 2023
  • African breast cancer patients benefit less from classical pathology services owing to the complex molecular and clinicopathological nature of the disease, poor quality of laboratory supplies, and shortage of experts in the field. This review presents evidence and confirms the need for improving anatomic pathology services in Africa. Peer-reviewed international journal articles available in Medline, Scopus, PubMed, and Google scholars, describing the status of pathology services in Africa, were included. Besides the late presentation of patients, anatomic pathology laboratories are accountable for the escalated mortality of breast cancer patients in several parts of Africa. Conversely, molecular diversity and biological heterogeneity of breast cancers, which disprove the one-size-fits-all therapeutic approach, have been reported from different parts of the continent. Irrespective of the geographical background, the choice of therapeutic options and predicting disease outcome depends on the right identification of the molecular signature of the cancer type. In conclusion, we propose that upgrading and integrating anatomic pathology with molecular diagnostic pathology is essential in order to provide better diagnostic results that will profoundly impact curbing mortality from breast cancers.