scholarly journals STUDIES ON TRICHINOSIS, WITH ESPECIAL REFERENCE TO THE INCREASE OF THE EOSINOPHILIC CELLS IN THE BLOOD AND MUSCLE, THE ORIGIN OF THESE CELLS AND THEIR DIAGNOSTIC IMPORTANCE

1898 ◽  
Vol 3 (3) ◽  
pp. 315-347 ◽  
Author(s):  
Thomas R. Brown

To summarize, we have been able to demonstrate: (1) In a case of acute trichinosis an extensive leucocytosis, with great absolute and relative increase in the number of eosinophilic cells in the blood, associated with a coincident decrease in the quantity of neutrophilic elements. (2) From the examination of specimens of muscle removed during life, besides the peculiar degenerations of the muscle, a longitudinal splitting of some of the fibres; a remarkable transverse splitting of others; a great proliferation of nuclei, about many of which vacuoles are seen; and large numbers of polymorphonuclear eosinophilic cells, which are especially prevalent in the more degenerated areas. (3) In a second case (after death), besides similar changes in the muscle, large numbers of eosinophiles throughout the infested portion. (4) In two other cases, during life, a great increase of the eosinophilic cells in the blood, with a coincident decrease of the polymorphonuclear neutrophiles, associated with leucocytosis, though of less extent than in the first case. (5) In pieces of muscle removed in these last two cases changes in most respects similar to those cited in the first case, but of less degree. (6) The similar character of the nuclei of the eosinophiles and the neutrophiles both in the blood and in the muscle, and the presence in the first case of certain cells which might be regarded as forms transitional between neutrophiles and eosinophiles, suggesting the possibility that the increase in the latter elements may, in these instances, take place in the muscles by direct transition from the neutrophiles.

Author(s):  
Andressa Gianotti Campos ◽  
Geni Patricio ◽  
Patrícia Ferreira de Castro ◽  
Luciane Kanayama ◽  
Alessandra Loureiro Morales dos Santos ◽  
...  

This report describes a 14-year-old Pit Bull dog presenting with a soft tissue swelling of 3-month progression in the right sublingual region. Histopathological analysis of the surgically resected specimen revealed large numbers of mature adipocytes and islets consisting of mucin-containing atrophic acini and dilated ducts surrounded by a thin fibrous capsule. Findings were consistent with sialolipoma of the sublingual salivary gland. To the authors’ knowledge, this is the first case of sialolipoma affecting the sublingual salivary gland in dogs.


1965 ◽  
Vol 19 ◽  
pp. 122-135 ◽  
Author(s):  
Paul S. Martin ◽  
William Byers

AbstractNine profiles of prehistoric cultural deposits at Wetherill Mesa, Mesa Verde National Park, Colorado, were analyzed for fossil pollen content. Relatively large numbers of corn (Zea) pollen occur in certain deposits of Mug House. In the alluvium retained behind low walls of two check-dams, the frequency of Zea is relatively low (.07%) but approximates the frequency of Zea pollen in soil of a garden on Chapin Mesa planted in Indian corn since 1919. Evidently, soil behind the prehistoric checkdams served as corn plots. The abundance of pollen resembling bee-weed (Cleome serrulata) suggests a more important role for the caper family in prehistoric time than would be inferred from its macrofossil record alone. The Cieome-type is common in prehistoric refuse and in human coprolite in the Four Corners area.Pollen content of matrix within a single archaeological site may vary, depending on the nature of the deposit. Although parts of their deposits overlap in time, the pollen content of (1) a trash slope, (2) a kiva, and (3) a work area within Mug House pueblo varies greatly, especially in economic pollen. Variation between profiles is reduced considerably when they are taken from the same type of deposit, that is, adjacent kivas or trash profiles.The hope that the fossil record would shed new light on the cause of abandonment of Mesa Verde was largely unrealized. The main stratigraphic event in the pollen sequence of the last 1000 years is a relative increase in juniper and pine pollen following abandonment 700 years ago. Ecologically, this rise can be explained as the result of secondary plant succession with first juniper and then pinyon invading fields when human disturbance ended. It may or may not reflect climatic change.


2003 ◽  
Vol 15 (3) ◽  
pp. 292-294 ◽  
Author(s):  
Alexis Berrocal ◽  
Alfonso López

Canine distemper and pulmonary sarcocystosis were diagnosed in a 10-week-old Rottweiler with 4-day history of diarrhea, vomiting, and weakness. Microscopic examination of the lung revealed bronchointerstitial pneumonia typical of morbillivirus infection. Also, numerous apicomplexan parasites were scattered in the alveolar walls. This protozoan infection was first thought to be toxoplasmosis but immunoperoxidase staining revealed large numbers of Sarcocystis canis. This is the first case of canine sarcocystosis reported from Latin America that further emphasizes the importance of immunohistochemistry in the differential diagnoses of apicomplexan infections in dogs.


2002 ◽  
Vol 734 ◽  
Author(s):  
J.H. Teichroeb ◽  
J.A. Forrest

ABSTRACTNon-contact Atomic Force Microscopy (AFM) was used to study the embedding of 10 nm and 20 nm gold nano-particles into the surface of polystyrene films spin-coated onto silicon substrates. The rate of embedding was determined by measuring the apparent nanosphere height as a function of annealing time. This was accomplished by two different methods. In the first case, each image (after a specific annealing time) is acquired at a different spot on the sample surface. In this case a fairly large (∼40) number of particles were imaged in order to have acceptable statistics. A second method involved the use of a kinematic mounting hot stage that allowed the same spot on the sample to be imaged at each time. This allows the same final precision without the same necessity for imaging large numbers of particles. The results indicate that sub nm resolution is easily obtainable with either technique.


1935 ◽  
Vol 61 (6) ◽  
pp. 807-831 ◽  
Author(s):  
Harry S. N. Greene

A devastating epidemic of rabbit pox in a breeding colony was studied with especial reference to factors of epidemiological significance. The evidence obtained indicated that the epidemic originated among animals inoculated with vaccine virus and that the infection was spread to the breeding colony by caretakers. The epidemic began insidiously with atypical cases of visceral disease followed by typical cases of pox and terminated as a mild cutaneous disease with scattering monosymptomatic affections of various kinds, difficult to recognize as cases of pox infection. An analysis of data concerning the health and functional efficiency of the population and the immunity of exposed animals showed that the epidemic of rabbit pox was the terminal event in a series of progressive disorders which began fully a month before the first case of pox occurred. In like manner, the terminal decrease in the severity of the disease and the eventual termination of the epidemic appeared to be referable to an improvement in the condition of the population rather than to a specific immunity acquired by exposure to infection.


1912 ◽  
Vol 16 (6) ◽  
pp. 780-788 ◽  
Author(s):  
Richard M. Pearce ◽  
J. H. Austin

In a large proportion of dogs that have been splenectomized for periods of two weeks or more, one finds a great increase in the number of endothelial cells of the lymph nodes. In most splenectomized dogs that succumb to an injection of hemolytic immune serum within forty-eight hours, the sinuses of the lymph nodes contain large numbers of endothelial cells, phagocytic for red cells. This is not seen in normal dogs receiving hemolytic serum. Likewise a similar power of phagocytosis is seen frequently in the stellate cells of the capillaries of the liver. Both in the lymph nodes and the liver these cells appear to be formed in situ; we find no evidence that they have been transported to these organs. Such findings suggest the development of a compensatory function on the part of the lymph nodes and possibly of the liver. Normally the spleen contains cells which have the power to engulf and presumably to destroy the red blood corpuscles. In certain pathological conditions this function is frequently greatly augmented and may sometimes be shared by the lymph nodes, for example, in typhoid fever, as was first clearly shown by Mallory. Our observations suggest that in the absence of the spleen, this function of forming red blood corpuscle-phagocyting cells, normally a minor activity of the lymph nodes, becomes highly developed in the latter organs, and that these cells, and the stellate cells of the liver, thus assume, in part at least, the function of destroying red blood corpuscles by phagocytosis. In view of the somewhat limited material at our disposal, we offer this, not as definitely conclusive, but as evidence which, in connection with the work of others, is highly suggestive of the possibility of the lymph nodes assuming some of the function of the spleen. Whether this activity of the endothelial cells of the lymph nodes and the liver has any bearing on the anemia that follows splenectomy and on the occurrence of spontaneous jaundice in the late periods after splenectomy, is not yet clear.


2021 ◽  
Vol 7 (2) ◽  
pp. 149-166
Author(s):  
Sugeng Santoso ◽  
Septian Sugestyo Putro ◽  
Ari Ana Fatmawati ◽  
Caesarani Gloria Putri ◽  
Sa’dillah Sa’dillah

Indonesia has confirmed its first case of Covid-19 transmission on March 2, 2020 and since then the transmission of the virus has become more widespread and has created new epicenters. The epicenter always involves a crowd, including in labor-intensive factory areas. This research method uses quantitative-descriptive. Companies that operating labor-intensive require the involvement of large numbers of people. In the production process, the distance between workers is not far apart, thus increasing the risk of virus transmission. The latest case in September 2020, 150 employees of a factory in the city of Purbalingga tested positive for the Covid-19 virus. It is strongly suspected that transmission occurs in the work area through asymptomatic labor. With the continued occurrence of Covid-19 transmission in industrial areas, this article aims to submit a proposal for the application of a risk mitigation design for the risk of Covid-19 transmission in labor-intensive industries using the FMEA method, which includes the layout of the work area, the flow of human movement in the factory area, and the application of health protocols in the hope of helping labor-intensive industries in suppressing and preventing the transmission of Covid-19


2012 ◽  
Vol 11 (2) ◽  
pp. 139-142
Author(s):  
Zeeba Shamim Jairajpuri ◽  
Usha Agarwal

Most malignant tumors are infiltrated by inflammatory cells and it has long been considered that such infiltrates may be evidence of a host response to the tumor. Although lymphocytes are prominent in the inflammatory infiltrate, macrophages are also present, often in considerable numbers. Breast carcinoma is one such tumor where tumor associated macrophages (TAM) have been reported to be widespread, more so in Western literature. There is paucity of information about the biological and prognostic significance of this phenomenon in India. Ours is a tertiary center which receives approximately100 to120cases of breast carcinoma for pathological evaluation annually. Here we report the first case in our experience which showed large numbers of macrophages infiltrating the stroma around the tumor cells.DOI: http://dx.doi.org/10.3329/bjms.v11i2.8928 Bangladesh Journal of Medical Science Vol. 11 No. 02 April 2012: 139-142


Genome ◽  
1989 ◽  
Vol 31 (2) ◽  
pp. 920-928 ◽  
Author(s):  
Georgii P. Georgiev ◽  
Nickolai A. Tchurikov ◽  
Yurii V. Ilyin ◽  
Sofia G. Georgieva ◽  
Lev J. Mizrokhi ◽  
...  

Recent data obtained in the authors' laboratories concerning the behaviour of mobile genetic elements of Drosophila melanogaster are reviewed. It was found that the mobile element jockey represents the typical LINE element. It is efficiently transcribed in D. melanogaster cells in flies and in culture. Transcription is initiated from the +1 nucleotide of jockey and depends on an internal promoter. This is the first case of an internal promoter being used by RNA polymerase II. Several events which take place during the transposition bursts in ctMR2 family of strains were described. Among them are the removal of mobile dispersed genetics (mdg) elements (with solo long terminal repeat (LTR) remaining at the site of excision), complete removal of an mdg element, and reinsertion of the same mdg to the same place either in the presence or in absence of solo LTR sequence. Finally, the formation of deletions was observed. A 462-bp deletion destroying the white locus can be further repaired (w+ reversion). Thus, transposition bursts include many different genetic events. A novel system of prolonged genome destabilization was described. It depends on mobilization of a new mobile element called Stalker. After certain crosses Stalker actively moves for dozens of generations giving rise to large numbers of insertion mutations. Several novel genes were detected using mobilized Stalker. They include a modifier of mdg4 and six enhancers of yellow mutations.Key words: Drosophila melanogaster, mobile elements, transcription.


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