Down's syndrome-disguising the facts.
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Biomedical subjects
Publications and source records attributed to T Ross.
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Pneumocystis carinii pneumonia has rarely been reported in previously healthy persons over the age of 6 months. Five cases of P. carinii pneumonia in adult homosexual men, confirmed by biopsy results, are reported. All five patients were seropositive when tested for antibodies to cytomegalovirus and four had evidence of active concurrent cytomegalovirus infections. Kaposi's sarcoma was shown in two of the patients and one had possible Pneumocystis infection of the central nervous system as well as P. carinii pneumonia. Three patients had second episodes of Pneumocystis pneumonia. Four of the five patients have died. Past or concurrent cytomegalovirus infection and homosexuality were the only common epidemiologic features in all five patients.
In 1966, Cavazos et al.(1) carried out electron-microscopic studies of human endometrium and reported the presence of microtubules in glandular epithelial cells. This study presents evidence that no microtubules are evident at any stage of the menstrual cycle. Instead, there are numerous tonofilaments that increase in number, forming bundles that relate to the formation of new desmosomes. They are under the influence of both endogenous and exogenous estrogen and dissipate under the influence of progesterone. This feature may be of submicroscopic importance in stabilizing the rigidity of cells prior to preparation for nidation under the influence of progesterone.