What's the difference between mesothelium and pericardium?

Mesothelium


Definition:

  • (n.) Epithelial mesoderm; a layer of cuboidal epithelium cells, formed from a portion of the mesoderm during the differetiation of the germ layers. It constitutes the boundary of the c/lum.

Example Sentences:

  • (1) Recognition of this deficiency in our knowledge spurred a belated explosion of research that began with an exploration of the fine structure of the mesothelium.
  • (2) A case of mucous metaplasia of mesothelium in an 80 year old woman is described.
  • (3) The other main sites of expression are the genital ridge, fetal gonad and mesothelium.
  • (4) We have previously shown that progesterone receptor (PR) is expressed in the mesothelium of the chick oviduct and ovary and in the smooth muscle cells of the oviduct and the bursa of Fabricius.
  • (5) We now describe, for the first time, that cells morphologically similar to uterine decidual cells found beneath the peritoneal mesothelium in inguinal hernia and in the cervical mucosa during normal pregnancy and in the mesenchymal tissue of the Fallopian tubes and ovaries at term react with the monoclonal antibody for IGFBP-1 equally to endometrial decidual cells.
  • (6) Adenomatoid change or squamous metaplasia of the mesothelium occurs in one-third of cases.
  • (7) Animals had poor early weight gain, and gross necropsy examination revealed intestinal adhesions and a mesothelium that was sclerotically thickened.
  • (8) They arise from the tissues of the broad ligament, predominantly from mesothelium covering the peritoneum but also from paramesonephric and mesonephric remnants.
  • (9) The mesothelium is a target of the toxic and carcinogenic effects of asbestos fibers.
  • (10) The first mesothelial mitoses appeared: in the first series (I) of experiments - in 24 h, in the second series (II) of experiments - 21 h. Further, proliferation of the mesothelium appeared in different parts of the tissue with various intencity and was of wavy character.
  • (11) Peritoneal mesothelium was exposed for 2-60 min to solutions of horseradish peroxidase by incubation in vitro, or after intraperitoneal injection in vivo.
  • (12) Rat pleural mesothelium was studied 16 to 22 months after intrapleural inoculation of chrysotile-asbestos.
  • (13) In the present study, immunohistochemical analysis of normal rabbit, dog, and monkey tissues using monoclonal antibody OC125, revealed that in these animals positive staining for CA125 is found in all tissues that produce this mucin-like glycoprotein in man, i.e., the peritoneal and pleural mesothelium, the different Müllerian-duct-derived epithelia of the female genital tract, and the epithelium of trachea, bronchi, bronchioli, and mucoserous respiratory glands; CA125 was also detected in some ductal and acinar cells of the dog mammary gland.
  • (14) The study of the morphologic features of mesothelial cells in effusions in experimental asbestos-induced mesotheliomas may contribute to the understanding of the neoplastic transformation of the mesothelium.
  • (15) 3) Between 9 and 12 days of age U-shaped folds of the bursal mesothelium began to invade the connective tissue of the bursa.
  • (16) In the absence of a primary tumor elsewhere, we considered this tumor to be primary in the spleen, and it was presumed that the tumor arose either from invaginated capsular mesothelium of the spleen or from heterotopic pancreatic or enteric tissue within the spleen.
  • (17) Keratin 7 was found to occur in the columnar and glandular epithelium of the lung, cervix, breast, in bile ducts, collecting ducts in the kidney and in mesothelium, but to be absent from gastrointestinal epithelium, hepatocytes, proximal and distal tubules of the kidney and myoepithelium.
  • (18) When studying total pleural mesothelium films in rats after intrapleural injection of chrysotile the pathological regeneration of the mesothelium is observed.
  • (19) The fetal tracheal and bronchial epithelium, tracheal glands, and pleural mesothelium were positive for CA 125.
  • (20) These results indicate that B. fragilis adheres to rat peritoneal mesothelium better than unencapsulated species and suggests that the capsular polysaccharide of B. fragilis plays some role in this increased adherence.

Pericardium


Definition:

  • (n.) The double baglike fold of serous membrane which incloses the heart.

Example Sentences:

  • (1) These data demonstrate that 1) the pericardium increases ventricular interaction in both preterm and newborn lambs and 2) the relative percentage increase is similar for both age groups and not age dependent.
  • (2) Two patients had hilar lymph node metastases, one of them had also involvement of pericardium.
  • (3) The technique described involves placement of an intraluminal shunt and resection of the involved caval wall with reconstruction using autologous pericardium.
  • (4) 6 patients had thickened pericardium, and 3 had constrictive features.
  • (5) Experience with glutaraldehyde- and glycerol-treated pericardium in valvular applications in sheep support these observations.
  • (6) In addition, there are basic differences in the PNI formation on aldehyde-treated pericardium and natural aortic valves as compared to the Dacron fabric.
  • (7) Wide resection of tumor including pericardium, chest wall, left lung and left brachiocephalic vein was performed.
  • (8) The terminology of the pericardial sinuses and recesses has been inconsistent, and the authors propose a nomenclature for standardizing the names of the recesses of the serous pericardium.
  • (9) Two previously unnamed recesses within the serous pericardium are defined and named, one the inferior aortic recess of the transverse sinus and the other, the right pulmonic recess of the transverse sinus.
  • (10) Complete or partial absence of the pericardium is a relatively rare disorder.
  • (11) A review of 30 chest scans without evidence of heart disease showed that the pericardium can be seen in the majority of cases.
  • (12) The pericardium microcirculatory bed of rabbits was studied under conditions of hypokinesia of different duration.
  • (13) Fifty-one episodes of acute cardiac tamponade were induced to decompensation (decline in mean aortic blood pressure to 70% of the level present when the pericardium was free of fluid) in 6 dogs by intrapericardial infusion of warmed saline solution.
  • (14) A case of pericardial rupture with herniation of the heart through the pericardium into the left hemithorax is described.
  • (15) The artificial pericardium reduced adhesion, thus facilitating reoperation in implants lasting up to a month.
  • (16) Early recognition of these tumors within the pericardium is important since surgical removal is often curative.
  • (17) Its specific applications in surgical planning include the question of chest wall invasion, brachial plexus involvement, and transgression of the diaphragm, pericardium, or lung apex.
  • (18) The tumor was excised with the thymic glands together with the involved ascending aorta and pericardium.
  • (19) This follows from the fact that measured left ventricular diastolic pressure is equal to the sum of the pressure differences accross the myocardium and the pericardium.
  • (20) These results indicate that glutaraldehyde-tanned bovine pericardium can induce immunologic responses in vivo consistent with a host-versus-graft reaction.

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