| 영문 | aging, senescence | 한글 | 노화, 늙음 |
|---|---|---|---|
| 설명 | 나이 먹는다는 의미로 사용되기도 하지만 일반적으로는 성장이 완료, 정지되고 그 이후에 일어나는 모든 과정을 가리킨다. 나이를 먹어감에 따라 생체의 여러 가지 기능이 저하되는데, 일반적으로 세포에 색소가 축적되거나 세포자체나 핵이 작아지는 현상이다. 개개의 세포 기능도 저하되고, 세포 내에 색소가 침착되며, 기관은 암갈색을 띤다. 또한 피부는 얇아지고 털주머니도 위축되며, 모발은 색소를 잃고 탈모된다. 현재 많은 학자들은 세포내 DNA가 끊어지거나 끊어진 경우 수복력이 감소하거나, 면역력이 저하하기 때문으로 보고 있다. 노화가 일어나는 것은 세포의 종류에 따라서 크게 다른데 신경세포처럼 태어나서 죽을 때까지 세포분열하지 않는 세포는 노화가 두드러지고 고환이나 골수의 세포처럼 항상 분열하는 세포는 노화현상이 거의 일어나지 않는다. 발병과 죽음의 확률이 높아지지만, 노쇠성 변화와 병적 변화와의 경제는 명확하지 않다. 노쇠를 야기하는 노화의 본질적 원인에 대해서는 아직 정설이 없다. |
||
| CM | California mastitis [test]; calmodulin; capreomycin; carboxymethyl; cardiac murmur; cardiac muscle; ... |
|---|---|
| AAA | abdominal aortic aneurysm/aneurysmectomy; acne-associated arthritis; acquired aplastic anemia; acute... |
| AAHA | American Academy of Hospital Attorneys; American Association of Homes for the Aging |
| ABS | abdominal surgery; acute brain syndrome; Adaptive Behavior Scale; admitting blood sugar; adult bovin... |
| AFAR | American Foundation for Aging Research |
| BLSA | Baltimore Longitudinal Study of Aging |
|---|---|
| CSHA | Canadian Study of Health and Aging |
| LSOA | Longitudinal Study of Aging |
| NIA | National Institute of Aging |
| CMS | Cytoplasmic male sterility |
| aging | The gradual changes in the structure and function of humans and animals that occur with the passage of time, that do not result from disease or other gross accidents, and that eventually lead to the increased probability of death as the person or animal grows older. It does not apply to microorganisms. (12 Dec 1998) |
|---|---|
| aging, premature | Changes in the organism associated with senescence, occurring at an accelerated rate. (12 Dec 1998) |
| cell aging | The decrease in the cell's ability to proliferate with the passing of time. Each cell is programmed for a certain number of cell divisions and at the end of that time proliferation halts. The cell enters a quiescent state after which it experiences cell death via the process of apoptosis. (12 Dec 1998) |
| clonal aging | The deterioration in successive generations of a clone; thus paramecia and other simple forms, if allowed to reproduce asexually for a number of generations, invariably undergo deterioration, the characters of each group of descendants progressively departing from those of the original sexually produced ancestor. (05 Mar 2000) |
| skin aging | The process of aging due to changes in the structure and elasticity of the skin over time. It may be a part of physiological aging or it may be due to the effects of ultraviolet radiation, usually through exposure to sunlight. (12 Dec 1998) |
| erythrocyte aging | Senescence of the red blood cell. Lacking the organelles that make protein synthesis possible, the mature erythrocyte is incapable of self-repair, reproduction, and carrying out certain functions performed by other cells. This limits the average life span of an erythrocyte to 120 days. (12 Dec 1998) |
| breast neoplasms, male | Any neoplasms of the male breast. These occur infrequently in males in developed countries, the incidence being about 1% of that in females. Two-thirds of patients present with intraductal carcinoma. The average age of onset is 60 years for men. Orchiectomy was the standard treatment but it has been replaced by tamoxifen as the initial therapy since oestrogen-receptor-positive tumours are predominant in males. Orchiectomy and mastectomy may be used if initial drug therapy is not successful. The prognosis is worse than that for females. (12 Dec 1998) |
| male | See Mal-. Evil; wicked; bad. Origin: L. Malus. See Malice. Same as Mail, a bag. 1. Of or pertaining to the sex that begets or procreates young, or (in a wider sense) to the sex that produces spermatozoa, by which the ova are fertilized; not female; as, male organs. 2. <botany> Capable of producing fertilization, but not of bearing fruit; said of stamens and antheridia, and of the plants, or parts of plants, which bear them. 3. Suitable to the male sex; characteristic or suggestive of a male; masculine; as, male courage. 4. Consisting of males; as, a male choir. 5. <mechanics> Adapted for entering another corresponding piece (the female piece) which is hollow and which it fits; as, a male gauge, for gauging the size or shape of a hole; a male screw, etc. <botany> Male berry, a screw having threads upon its exterior which enter the grooves upon the inside of a corresponding nut or female screw. Male thread, the thread of a male screw. Origin: F. Male, OF. Masle, mascle, fr. L. Masculus male, masculine, dim. Of mas a male; possibly akin to E. Man. Cf. Masculine, Marry. 1. An animal of the male sex. 2. <botany> A plant bearing only staminate flowers. Source: Websters Dictionary (01 Mar 1998) |
| male breast | One of the two, usually rudimentary, mammary glands in the male. Synonym: mamma masculina, mamma virilis. (05 Mar 2000) |
| male chromosome complement | The large majority of males have a 46, xy chromosome complement (46 chromosomes including an x and a y chromosome). A minority of males have other chromosome constitutions such as 47,xxy (47 chromosomes including two x chromosomes and a y chromosome) and 47,xyy (47 chromosomes including an x and two y chromosomes). (12 Dec 1998) |
| male gonad | <anatomy> One of the two male reproductive glands located in the cavity of the scrotum. The testes produce sperm and male sex hormones. (13 Nov 1997) |
| male hermaphroditism | More correctly designated as male pseudohermaphroditism, as the term is commonly used; however, it may designate an instance of true hermaphroditism in which overt bodily characteristics are predominantly male. (05 Mar 2000) |
| male homosexuality | Erotic predisposition, or activity, including sexual congress, between two men, past the age of puberty. (05 Mar 2000) |
| male hypogonadism | A state in which testes are present but fail to function normally; may be of gonadal or pituitary origin. Synonym: eunuchism, male hypogonadism. Hypergonadotropic eunuchoidism, eunuchoidism of gonadal origin, commonly accompanied by enhanced levels of pituitary gonadotropins in the blood and urine, as in Klinefelter's syndrome. (05 Mar 2000) |
| male infertility | <radiology> Low sperm count, decreased motility/morphology, autoimmunity (12 Dec 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|