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Results: 13

1.

Camptothecin

An alkaloid isolated from the stem wood of the Chinese tree, Camptotheca acuminata. This compound selectively inhibits the nuclear enzyme DNA TOPOISOMERASES, TYPE I. Several semisynthetic analogs of camptothecin have demonstrated antitumor activity. [from MeSH]

MedGen UID:
2422
Concept ID:
C0006812
Pharmacologic Substance
2.

Malignant Neoplasm

Cancer begins in your cells, which are the building blocks of your body. Normally, your body forms new cells as you need them, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor. Tumors can be benign or malignant. Benign tumors aren't cancer while malignant ones are. Cells from malignant tumors can invade nearby tissues. They can also break away and spread to other parts of the body. . Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for where they start. For example, lung cancer starts in the lung, and breast cancer starts in the breast. The spread of cancer from one part of the body to another is called metastasis. Symptoms and treatment depend on the cancer type and how advanced it is. Most treatment plans may include surgery, radiation and/or chemotherapy. Some may involve hormone therapy, biologic therapy, or stem cell transplantation. . NIH: National Cancer Institute.  [from MedlinePlus]

MedGen UID:
14297
Concept ID:
C0006826
Neoplastic Process
3.

Instability

MedGen UID:
731956
Concept ID:
C1444783
Finding
4.

Profound

MedGen UID:
615266
Concept ID:
C0439808
5.

Error occurred: cannot get document summary

ID:
275488

6.

cytotoxicity

The adverse effect of some iatrogenic therapies. It is an accepted side effect in radiation therapy where the desired effect is to kill rapidly growing tumor cells. In the killing of tumor cells, other cells that are rapidly growing e.g hair, mucous membranes are also killed. [from NCI]

MedGen UID:
108579
Concept ID:
C0596402
Cell or Molecular Dysfunction
7.

Topoisomerase I Inhibitors

Compounds that inhibit the action of topoisomerase I (see Topoisomerase Inhibitors). The alkaloid camptothecin is the most commonly used inhibitor of topoisomerase I. Water-soluble derivatives of camptothecin, such as CPT-11 and topotecan, have been examined for antineoplastic activity in colorectal cancer, non--small-cell lung cancer, lymphoma, ovarian cancer, head and neck cancer, pancreatic cancer, and breast cancer [from NCI]

MedGen UID:
108556
Concept ID:
C0594374
Pharmacologic Substance
8.

Stress

Everyone feels stressed from time to time. Not all stress is bad. All animals have a stress response, and it can be life-saving. But chronic stress can cause both physical and mental harm. There are at least three different types of stress:: -Routine stress related to the pressures of work, family, and other daily responsibilities. -Stress brought about by a sudden negative change, such as losing a job, divorce, or illness. -Traumatic stress, which happens when you are in danger of being seriously hurt or killed. Examples include a major accident, war, assault, or a natural disaster. This type of stress can cause post-traumatic stress disorder (PTSD). Different people may feel stress in different ways. Some people experience digestive symptoms. Others may have headaches, sleeplessness, depressed mood, anger, and irritability. People under chronic stress get more frequent and severe viral infections, such as the flu or common cold. Vaccines, such as the flu shot, are less effective for them. Some people cope with stress more effectively than others. It's important to know your limits when it comes to stress, so you can avoid more serious health effects. NIH: National Institute of Mental Health.  [from MedlinePlus]

MedGen UID:
20971
Concept ID:
C0038435
Finding
9.

Molecular Mechanisms of Pharmacological Action

Pharmacological activities at the molecular level of DRUGS and other exogenous compounds that are used to treat DISEASES and affect normal BIOCHEMISTRY. [from MeSH]

MedGen UID:
226255
Concept ID:
C1258062
Molecular Function
10.

Enzyme Inhibitors

compounds or agents that combine with an enzyme in such a manner as to prevent the normal substrate-enzyme combination and the catalytic reaction. [from CRISP]

MedGen UID:
8652
Concept ID:
C0014432
Pharmacologic Substance
11.

Alkaloid

A member of a large group of substances found in plants and in some fungi. Alkaloids contain nitrogen and can be made in the laboratory. Nicotine, caffeine, codeine, and vincristine are alkaloids. Some alkaloids, such as vincristine, are used to treat cancer. [from NCI]

MedGen UID:
7968
Concept ID:
C0002062
Pharmacologic Substance
12.

Antineoplastic Agents, Phytogenic

Agents obtained from higher plants that have demonstrable cytostatic or antineoplastic activity. [from MeSH]

MedGen UID:
1986
Concept ID:
C0003394
Pharmacologic Substance
13.

Antineoplastic Agents

NOTE: Includes hormones (AN500) which are exclusively used as antineoplastics (e.g.,tamoxifen). Excludes other hormones (HS000). [from NDF-RT]

MedGen UID:
1984
Concept ID:
C0003392
Pharmacologic Substance

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