dysgenesis


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dysgenesis

 [dis-jen´ĕ-sis]
defective development; see also dysplasia and malformation.
gonadal dysgenesis
1. defective development of the gonads.
2. turner's syndrome and its variants.

dys·gen·e·sis

(dis-jen'ĕ-sis),
Defective development.
[dys- + G. genesis, generation]

dysgenesis

/dys·gen·e·sis/ (-jen´ĕ-sis) defective development; malformation.
gonadal dysgenesis  defective development of the gonads, which may be accompanied by abnormalities of the sex chromosomes; sometimes used specifically to denote Turner's syndrome.

dysgenesis

(dĭs-jĕn′ĭ-sĭs)
n.
Defective or abnormal development of an organ, especially of the gonads.

dysgenesis

[disjen′əsis]
Etymology: Gk, dys + genein, to produce
1 also called dysgenesia, defective or abnormal formation of an organ or part, primarily during embryonic development.
2 impairment or loss of ability to procreate. A kind of dysgenesis is gonadal dysgenesis. Compare agenesis. dysgenic, adj.

dys·gen·e·sis

, dysgenesia (dis-jen'ĕ-sis, -jĕ-nēzē-ă)
Defective development.
[dys- + G. genesis, generation]

dysgenesis

Any abnormality of development.

dysgenesis

defective embryonic development

dys·gen·e·sis

, dysgenesia (dis-jen'ĕ-sis, -jĕ-nēzē-ă)
Defective development.
[dys- + G. genesis, generation]

dysgenesis

defective development; malformation.

Patient discussion about dysgenesis

Q. Is it a birth defect in children? I know about the causes of autism. Is it a birth defect in children?

A. it's not an easy answer i'm afraid...there are congenital differences, but no "birth defect" that we can detect. there's a good pdf file that gives a full explanation about it...i think you'll find it useful:
http://209.85.129.132/search?q=cache:U7PHTfTAZhYJ:www.nichd.nih.gov/publications/pubs/upload/autism_overview_2005.pdf+http://www.nichd.nih.gov/publications/pubs/upload/autism_overview_2005.pdf&hl=iw&ct=clnk&cd=1&gl=il

More discussions about dysgenesis
References in periodicals archive ?
Thyroid dysgenesis is the most common cause of congenital hypothyroidism.
Although ambiguous genetalia was the commonest presentation but CAIS mainly presented with inguinal hernia or primary amenorrhea and partial gonadal dysgenesis presented with delayed puberty and micropenis or hypospadias.
Translocations involving autosomes and the X chromosome with gonadal dysgenesis have been described by a few studies.
A genome-wide association study of men with symptoms of testicular dysgenesis syndrome and its network biology interpretation.
Among DGD cases, partial gonadal dysgenesis was the most frequent, followed by mixed gonadal dysgenesis and ovotesticular DSD.
These disorders include ovotesticular DSD, persistent Mullerian duct syndrome, gonadal dysgenesis (internal reproductive structure is inconsistent with external genital appearance), chromosomal abnormalities (such as Turner syndrome [45,XO], Klinefelter syndrome [47,XXY], and 46,XY/ 45,XO mosaicism), and single gene mutations related to testicular development, such as SRY, ST1, SF1 (the sex-determining gene on the Y chromosome) (Mastrandrea et al.
The other form of gonadal dysgenesis occurs in which an entire chromosome is missing; the most common is Turner's syndrome.
Some Manx cats have an inherited condition called sacral caudal dysgenesis, a malformation of the vertebrae of the lower back and tail that causes tailless or bobtailed cats to have difficulty using their hind legs.
Rosie's limbs were amputated at Birmingham Children's Hospital as part of treatment for a lifethreatening spinal condition, spinal segmental dysgenesis.
There is agenesis or dysgenesis of the cerebellar vermis and isthmic portion of the brainstem.
Other studies support somatic gene mutation or partial gonadal dysgenesis as the responsible mechanism.
Typically increasing transposons activity is one reason for gonadal dysgenesis (Kale et al.