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In 2015 a research was done on the role of autoimmunity in premature ovarian failure. [11] In 2014 there was an ovarian autoimmune disease research that revealed at least two mechanisms that protect the ovary from an autoimmune attack. [12] Research showed that Theca cells were targeting the autoimmune deficiency within the ovary.
Premature ovarian insufficiency (POI) is impairment of the ovaries and how they work before the age of 40 years. It can be caused by multiple factors, one being genetic. Genes and their influence determine the initial number of the primordial follicles, impact on the rate of follicular atresia, and are impactful on the age of menopause.
It can result in chronic kidney failure, hypoalbuminemia, which can cause ascites and peripheral edema, and nephrotic syndrome, which can cause hypertension or hypercoagulability. [156] Familial renal disease is an uncommon cause of kidney failure in young dogs. Most causes are breed-related (familial) and some are inherited.
Chronic anovulation is a common cause of infertility. In addition to the alteration of menstrual periods and infertility, chronic anovulation can cause or exacerbate other long-term problems, such as hyperandrogenism or osteopenia. It plays a central role in the multiple imbalances and dysfunctions of polycystic ovary syndrome.
Iatrogenic, e.g., due to radiation, chemotherapy or surgery, such as laserization of the surface of the ovary to treat endometriosis. Excessive laparoscopic ovarian drilling has been reported to cause premature ovarian failure. [10] [11] (The primordial follicles are located in the thin outer one-millimeter layer of the ovary.) [12]
Hypergonadotropic hypogonadism (HH), also known as primary or peripheral/gonadal hypogonadism or primary gonadal failure, is a condition which is characterized by hypogonadism which is due to an impaired response of the gonads to the gonadotropins, follicle-stimulating hormone (FSH) and luteinizing hormone (LH), and in turn a lack of sex steroid production. [1]
Hyperprolactinaemia is the most common cause of AHH. It is a well-established cause of infertility in both male and female mammals. [13] Prolactin inhibits GnRH neurons and therefore inhibits the subsequent release of LH, FSH and sex steroids. The mechanism of prolactin induced inhibition of GnRH release is poorly understood. [13]
Female genital disease is a disorder of the structure or function of the female reproductive system that has a known cause and a distinctive group of symptoms, signs, or anatomical changes. The female reproductive system consists of the ovaries , fallopian tubes , uterus , vagina , and vulva .