Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0032463 (polycythemia vera)
 3,374 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Stillbirths, mummies, abortions, and early embryonic death have a substantial impact on the profitability of a farm in both endemic and epidemic conditions. Fetal death is highly dependent on stage of gestation. Implantation occurs around day 14 postmating in sows, and fetal death of an entire litter at this time usually results in a regular return to service. If more than four embryos remain alive, the sow may go on to farrow normally. If fetal death occurs after implantation but before calcification (around 35 days gestation), the sow will either return to estrus at an irregular interval or will farrow a normal litter of reduced size. Although fetuses are normally resorbed prior to calcification, fetal death after that stage of development leads to mummification. Abortions are more directly related to maternal control of pregnancy than fetal failure. Stillbirths are those pigs that appear normal at birth but have lungs that do not float in water. Causes of fetal death can be divided into infectious and noninfectious categories. Infectious causes perhaps are overemphasized but are certainly important in epidemic situations. Some infectious causes of fetal death are primarily systemic maternal pathogens, whereas others may attack the fetus and/or placenta, directly such as PPV, PEV, PRV, SIRS virus, and Leptospira sp. Several other infectious agents have been associated with fetal death. Noninfectious causes of stillborns, mummies, abortions, and early embryonic death are most common in endemic situations. Most stillbirths are due to difficulty at or around parturition, primarily extended duration causing fetal anoxia. Environmental factors such as increased ambient temperature and seasonal infertility affect death rates, as do specific individual sow characteristics, nutritional factors, and toxicities. The causes of stillborns, mummies, abortions, and early embryonic death are often difficult to ascertain, but the potential rewards make investigation efforts worthwhile.
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PMID:Stillbirths, mummies, abortions, and early embryonic death. 144 74

Systemic unsealed radiation therapy is achieved when a radioactive substance is administered orally or parenterally and that material is concentrated in an organ or site for sufficient time to deliver a therapeutic dose of radiation. The radioactive material usually emits beta particles. In general, there is intense local radiation of the abnormal tissues, and normal organs, which do not trap the radioactive material, are exposed to a small radiation dose. The most frequent treatments involve radioiodine (131)I for hyperthyroidism and differentiated thyroid cancer. Other applications include treatment of painful skeletal metastases, polycythemia vera, malignant cysts, and neuroendocrine tumors. The treatments are usually well tolerated and not associated with long-term effects, such as cancer or infertility.
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PMID:Systemic radiation therapy with unsealed radionuclides. 1072 98

Pseudorabies, or Aujeszky's disease, is a notifiable worldwide infection of domestic and feral swine that causes economic losses for the swine industry. In domestic pigs, the virus is responsible for nervous and/or respiratory symptoms; in pregnant sows, it is one of the major causes of stillbirth, mummification, embryonic death, and infertility (SMEDI). It is known that PRV infection in wild boar is associated with low pathogenicity and attenuated or absent symptomatology, but limited information is available about the ability of the virus to infect the foetuses of infected wild boar pregnant sows. Due to scarce information about the reproductive consequences, we investigate the possible intrauterine vertical transmission of the virus in wild boar pregnant sow living in a highly infected area. A number of 54 hunted wild boar were sampled during 2018-2019, and blood, genital and nasal swabs, placenta, and fetuses were collected for serological and molecular investigations. A seroprevalence of 74% (40/54) was detected, while 1/24 pregnant sow and 1/24 pooled foetuses tested positive by PCR (gene gB). This is the first evidence of viral detection in foetuses from seropositive pregnant wild boar. This finding suggests the possible pathogenetic role of PRV on pregnancy in wild boar and the existence of an additional transmission route.
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PMID:Detection of Pseudorabies Virus in Wild Boar Foetus. 3210 85