teratogenicity definition
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Nearby words for teratogenicity noun, Biology. 1. the production or induction of malformations or monstrosities, especially of a developing embryo or fetus. Also called teratogeny.
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- iatrogenic. resulting from the activity of a health care provider or institution; said of any adverse condition in a patient resulting from treatment by a physician, nurse, or allied health professional. (ī-at'rō-jen'ik),
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- Teratoma is a congenital tumor containing one or more of the three primary embryonic germ layers. Hair and teeth as well as endodermal elements may be present.
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Teratoma A teratoma is a type of germ cell tumor that is believed to be present at birth. These are well-encapsulated tumors that can contain tissue normally found in the brain, liver or lungs. In some cases there have been reports of hair, teeth and bones appearing in teratoma. Teratoma may be classified as mature or immature.
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Birth Defect Lawsuits While birth defects can be caused by genetic factors, environmental hazards—such as drugs and toxins—can also have a teratogenic effect. A teratogen is any substance to which a pregnant female is exposed that may cause physical defects in the developing embryo or fetus and result in a birth defect. If a woman is exposed to teratogens during pregnancy due to the negligence or wrongdoing of another party, that party can be held liable for the losses and suffering that ensues for both the mother and the child.
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- 60, teratogenic agents are more likely to cause major congenital malformations. The variety of these associated syndromes with specific teratogenic agents is discussed below. LEARNING OBJECTIVES: At the end of the lecture you should be able to: 1. Describe the frequency and significance of major and minor congenital malformations. 2.
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Teratology and Drugs in Pregnancy In general, the central nervous and skeletal systems are the most affected. Women may encounter a number of teratogens. Smoking is most likely to cause growth retardation, but has also been implicated in the prelabor rupture of the membranes, preterm labor, abruption of the placenta, spontaneous abortion, perinatal morbidity and mortality, and sudden infant death syndrome.
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Echogenicity Echogenicity or echogeneity is the ability to bounce an echo, e.g. return the signal in ultrasound examinations. In other words, echogenicity is higher when the surface bouncing the sound echo reflects increased sound waves. Tissues that have higher echogenicity are called hyperechogenic and are usually represented with lighter colors on images in medical ultrasonography. In contrast, tissues with lower echogenicity are called hypoechogenic and are usually represented with darker colors. Are
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Totipotency & Pluripotency Totipotency & Pluripotency. Edit 0 29 …. Totipotent means that each cell can give rise to all the 220 cell types in the embryo plus the extra-embryonic tissues necessary to form the placenta that together allow for the development of the fetus. The ability to form the placenta is a defining feature of totipotent cells.otipotency & Pluripotency. Edit 0 29 …. Totipotent means that each cell can give rise to all the 220 cell types in the embryo plus the extra-embryonic tissues necessary to form the placenta that together allow for the development of the fetus. The ability to form the placenta is a defining feature of totipotent cells.
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- Potency specifies the differentiation potential (the potential to differentiate into different cell types) of the stem cell. 1  Totipotent (a.k.a. omnipotent) stem cells can differentiate into embryonic and extraembryonic cell types. Such cells can construct a complete, viable organism.
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- TERATOGENIC EFFECTS: Not available.DEVELOPMENTAL TOXICITY: Not available. The substance is toxic to lungs, mucous membranes. Repeated or prolongedexposure to the substance can produce target organs damage. Section 4: First Aid Measures Eye Contact: Check for and remove any contact lenses.
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teratogen noun, Biology. 1. a drug or other substance capable of interfering with the development of a fetus, causing birth defects. Origin of teratogen.
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Teratoma Sacroccygeal Teratoma. Sacroccygeal Teratoma (SCT) is a type of Teratoma that arises at the base of the tailbone or coccyx. It is found to arise in one out of every 35,000 newborns. It is the most common type of tumor in newborns and is generally non-malignant at the time of birth.
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- In this case report, the association between Zika virus infection and teratogenicity is strengthened, with evidence that the latency period between ZIKV infection of the fetal brain and the detection of microcephaly and intracranial calcifications on ultrasonography may be prolonged.
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Echogenicity Increased liver echogenicity at ultrasound examination reflects degree of steatosis but not of fibrosis in asymptomatic patients with mild/moderate abnormalities of liver transaminases.
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echogenicity the characteristic ability of a tissue or substance to reflect sound waves and produce echoes. Bone and gas are most echogenic and fluids such as urine and bile the least. Organ parenchyma and soft tissues are intermediate, but each differs slightly from the other and relative characteristics are known.
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- Effects of teratogens during this period of developmental often times results in an “all or none effect.” That is, the effect of the teratogen, if it is to have any effect, will be so profound as to cause a spontaneous abortion. Some examples of teratogens known to cause human malformations are listed in the table below (Table 23-2). A few of the most common examples will be discussed below.
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iatrogenic adjective Referring to a physical or mental condition caused by a physician or healthcare provider (e.g., iatrogenic disease) due to exposure to pathogens, toxins or injurious treatment or procedures.
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teratogen Popular Terms. Agent, process, or substance (such as German measles, x-ray photography, thalidomide), that can cause birth defects or prevent normal development of a fetus, usually within the first three months of pregnancy.
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hematopoietic Pertaining to or related to the formation of blood cells. Synonym(s): hematogenic (1) , hematopoietic. hematopoietic. 1. pertaining to or affecting the formation of blood cells. 2. an agent that promotes the formation of blood cells. dyshematopoiesis.
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teratogenic Adjective. (comparative more teratogenic, superlative most teratogenic). ( 1 teratology) Of, relating to, malformations or defects to an embryo or foetus. ( 2 teratology) Causing malformations or defects to an embryo or foetus.
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What does parenchymal echogenicity mean? Parenchyma is the functional part of an organ (while stroma is the supporting tissue). Echogenicity means ability to produce an echo. So parenchymal echogenicity means the ability of the functional part of an organ to produce an echo (for ultrasound examination for example).arenchyma is the functional part of an organ (while stroma is the supporting tissue). Echogenicity means ability to produce an echo. So parenchymal echogenicity means the ab … ility of the functional part of an organ to produce an echo (for ultrasound examination for example). Justin Casper.
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teratogen teratogenic ter·a·to·gen·ic (těr'ə-tə-jěn'ĭk) adj. Of, relating to, or causing malformations of an embryo or a fetus.
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Medical Definition of Ovarian teratoma Medical Definition of Ovarian teratoma Our Ovarian Cysts Main Article provides a comprehensive look at the who, what, when and how of Ovarian Cysts Ovarian teratoma: Also called a dermoid cyst of the ovary, this is a bizarre tumor, usually benign, in the ovary that typically contains a diversity of tissues including hair, teeth, bone, thyroid, etc. A dermoid cyst develops from a totipotential germ cell (a primary oocyte) that is retained within the egg sac (ovary). Being totipotential, that cell can give rise to all orders of cells necessary to form mature tissues and often recognizable structures such as hair, bone and sebaceous (oily) material, neural tissue and teeth.