細胞壁に欠陥のある細菌と培養否定的な発熱エピソードが,骨髄移植を受けた患者の間で発生した
1Department of Microbiology, University of Hong Kong, Queen Mary Hospital, Hong Kong.
Lancet (London, England)
|March 15, 2001
まとめ
細胞壁欠乏菌は,骨髄移植 (BMT) の受容者における説明不可能な発熱の主要な原因である. これらの生物を特定することで,BMT患者の培養陰性発熱エピソードの治療結果が改善されます.
科学分野:
- 感染症 感染症は感染症です.
- 血液学 ヘマトロジ
- 微生物学 微生物学とは
背景:
- 中性発症の発熱は,骨髄移植 (BMT) の受容者に多く見られ,しばしば原因が不明である.
- 感染症が疑われるが,微生物学的確認はまれで,中性衰弱熱の多くの症例は説明がつかないままである.
- BMTに関連した発熱における細胞壁欠乏菌の役割については,さらなる調査が必要である.
研究 の 目的:
- 骨髄移植を受けた人の細胞壁欠乏性のバクテリアの有病率と臨床的重要性を調査する.
- 培養ネガティブな発熱エピソードに対するこれらの生物の寄与を決定する.
- 微生物学的発見と患者の臨床的特徴を相関させる.
主な方法:
- BMT受容者の血液培養は,標準的な有酸素,無酸素,および特殊な細胞壁欠乏細菌培養ボトルを使用して分析されました.
- 陽性培養からの単離は,標準的な生化学的方法を使用して特定されました.
- 微生物学的結果は,中性不全期間を含む患者の臨床データと相関していた.
主要な成果:
- 86人のBMT受容者からの798の血液培養物のうち,20セットは,細胞壁欠陥の細菌培養ボトルのみで単離を生成しました.
- これらの単離物の大半 (85%) はグラム陽性であり,StaphylococcusとBacillusの種を含む.
- 抗生物質治療は,細胞壁欠乏性の細菌に関連した20回のエピソードの95%で成功しました.
結論:
- 細胞壁欠乏性のバクテリアは,BMT受容者における培養負の熱性エピソードの重要な原因である.
- これらの生物の検出は,この脆弱な患者集団において,以前説明できなかった発熱を説明することができます.
- 細胞壁欠乏菌の標的型検出方法は,BMT患者の正確な診断と効果的な管理に不可欠です.
関連する概念動画
Cell-mediated Immune Responses
Overview
Stem Cell Therapy for Tissue Regeneration
Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
Bone Marrow Sampling and Transplants
Bone marrow transplant is a potential cure for several diseases, including cancer and specific genetic disorders. Notably, this procedure is applicable for patients suffering from aplastic anemia, certain types of leukemia, severe combined immunodeficiency disease (SCID), Hodgkin's disease, non-Hodgkin's lymphoma, multiple myeloma, thalassemia, sickle-cell disease, and certain cancers.
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...
The transplant begins with high doses of chemotherapy and radiation treatment, which aim to destroy the...
Tissue Transplantation
Tissue transplantation is a significant medical procedure involving the transfer of cells, tissues, or organs from a donor to a recipient, with the primary aim of restoring lost functions. This procedure is crucial in treating a broad spectrum of diseases, including kidney diseases, liver failure, heart disease, and certain types of cancers.
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
The Biology of Tissue Transplantation
The biology of tissue transplantation hinges on the Major Histocompatibility Complex (MHC) molecules. These molecules...
Pulmonary Tuberculosis I
Tuberculosis, often called TB, is a contagious illness primarily caused by Mycobacterium tuberculosis. It mainly affects the lung parenchyma but can also impact other body parts.
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Cryptococcal Meningitis
Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...


