scholarly journals V. Research on the minute anatomy of the alimentary canal

1876 ◽  
Vol 24 (164-170) ◽  
pp. 241-244 ◽  

This research was commenced and carried on for the first fifteen months under the direction of Dr. Klein; during the last year it was continued independently. continued independently. Chapter I. describes the minute anatomy, of the mucous membrane of she small intestine and the method of fat-absorption. The author commences the Chapter by giving a history of the researches of previous observers, and the methods he employed for hardening and staining the tissue. He then gives a description of the minute structure of the mucosa.

1876 ◽  
Vol 166 ◽  
pp. 451-488 ◽  

The following is an account of a research undertaken in the laboratory of the Brown Institution in July 1873, under the direction of Dr. Klein, and carried on there under his direction until October 1874. During the last year it has been continued in the physiological laboratory of St. George’s Hospital. Chapter I. The minute anatomy of the mucous membrane of the intestine, and the method of fat-absorption. In this chapter I propose first to state very briefly the result of my researches on the structure of the intestine and the method of fat-absorption; secondly, to relate the his­tory of these subjects; and, finally, to give a detailed account of this research.


1954 ◽  
Vol s3-95 (30) ◽  
pp. 153-158
Author(s):  
W. HEWITT

Experiments are described in which sections from the small intestine of rats, fed on triolein 2¾ hours previously, were examined with Sudan black and the acid haematein test, with and without Sudan red coloration. The histochemical appearances in the epithelial cells of the mucous membrane are described. Lipoid can be observed not only within the epithelial cells and their free border but also as particles between the cells.


1956 ◽  
Vol s3-97 (38) ◽  
pp. 199-203
Author(s):  
W. HEWITT

Studies have been made of the small intestine of rats previously fed with triolein. A previous description of the location of the lipid and phospholipid has been confirmed by using Sudan black and the acid haematein test. In addition histochemical tests have been applied to detect neutral fat and fatty acid. The lipid in the free border of the epithelial cells of the mucous membrane consisted of fatty acid and probably neutral fat, which would support the belief that when neutral fat is absorbed some of it is unhydrolysed. Additional evidence for this is provided by the fact that neutral fat could also be detected between the lateral parts of the cells. Occasionally fatty acid was also detectable in this location. Variable proportions of neutral fat, fatty acid, and phospholipid were to be found inside the epithelial cells and it appeared possible that there was a direct relationship between the amounts of neutral fat and phospholipid present.


2021 ◽  
pp. 137-141
Author(s):  
Ayaka Takasu ◽  
Takashi Ikeya ◽  
Katsuyuki Fukuda

The incidence of press-through pack (PTP) ingestion has been increasing. In many cases, the ingested PTP is lodged in the esophagus. Here, we report a case of endoscopic removal of a PTP from the anal canal. An 89-year-old man with mild dementia presented with a 3-day history of anal pain. On digital rectal examination, we felt a hard and sharp object, which could not be manually removed due to its shape. Therefore, it was removed endoscopically. We inserted an endoscope with a large-caliber soft oblique cap and observed the PTP in the anal canal. It was successfully removed using grasping forceps. The patient was stable, with only mild anal fissures, and no serious complications such as perforation and bleeding were observed. It is generally recognized that a PTP that reaches the large intestine is naturally expelled. Even if a PTP could pass through the pylorus or the small intestine, it could still be difficult to discharge naturally from the anus without discomfort or pain, as in this case.


2012 ◽  
Vol 13 (4) ◽  
pp. 456-459 ◽  
Author(s):  
Bhushan Arun Jawale ◽  
Rahul Redasani ◽  
Lalit Chaudhari ◽  
Narendra Chopde ◽  
Amol Pharande ◽  
...  

ABSTRACT Aim To determine microbial prevalence in the mucous membrane and prosthesis of denture wearers with and without denture stomatitis and to study its relationship with potential clinical cofactors. Materials and methods Saliva was collected from 200 patients (100 female and 100 male) wearing dental prosthesis for measurement of pH. Oral samples of the mucous membrane and of dentures were taken with sterile swab for microbiological analysis. Medical and dietary history of the subjects was recorded. Chi-square test and analysis of varience were used for statistical analysis. Results Diabetes, hypertension and high carbohydrate ingestion was observed in majority of patients. The pH average in saliva was of 5.1. The presence of C. albicans, S. aureus and S. mutans in the mucous membrane was of 55.4, 56.4 and 63.6% respectively. C. albicans was isolated in 69.7% from the prosthesis, whereas S. aureus and S. mutans were isolated in 45.3%. The isolation of C.albicans was more frequent in patients with deture stomatitis. Conclusion C. albicans, S. aureus and S. mutans frequently colonize the oral mucous of denture wearers. This is more frequently observed in patients with denture stomatitis. Clinical significance Denture stomatitis is associated to Candida albicans, different bacteria and other cofactors, such as salivary pH, carbohydrate ingestion, systemic illnesses and medication. How to cite this article Chopde N, Jawale B, Pharande A, Chaudhari L, Hiremath V, Redasani R. Microbial Colonization and their Relation with Potential Cofactors in Patients with Denture Stomatitis. J Contemp Dent Pract 2012;13(4):456-459.


2013 ◽  
Vol 2013 ◽  
pp. 1-3 ◽  
Author(s):  
Sarah Alghamdi ◽  
Yumna Omarzai

Malignant melanoma of the gastrointestinal tract is an uncommon neoplasm that could be primary or metastatic. Small intestine represents the most common site for the metastatic melanoma; however, it could be found anywhere in the gastrointestinal tract. Intussusception is a rare cause of intestinal obstruction in adults compared to children. In 90% of the cases, the underlying cause can be found, and in 65% of the cases, intussusception is caused by the neoplastic process. The majority of the neoplasms are benign, and about 15% are malignant. Metastatic melanoma is one of the most common metastatic malignancies to the gastrointestinal tract; however, the premortem diagnosis is rarely made. Here, we report an uncommon clinical presentation of metastatic melanoma causing intussusception in an 80-year-old man. This diagnosis should be considered in a differential diagnosis in any patient who presents with gastrointestinal symptoms and a history of melanoma.


1930 ◽  
Vol 26 (2) ◽  
pp. 218-218
Author(s):  
I. F. Kharitonov

Session 4 / XII 1929 Dr. I. F. Kharitonov (speaker Dr. A. N. Syzganov). The formation of an artificial vagina by Baldwin's method with a completely satisfactory result for the near future was produced by the operator in one case of congenital absence of this organ; the method is not safe, fraught with complications; in the reported case, the mucous membrane of the newly formed vagina continues to secrete juice from the small intestine, which strongly irritates the surrounding tissues.


1990 ◽  
Vol 46 (S5) ◽  
pp. 5-21 ◽  
Author(s):  
Jan Pontén ◽  
Lars Holmberg ◽  
Dimitrios Trichopoulos ◽  
Olli-Pekka Kallioniemi ◽  
Gunnar Kvåle ◽  
...  

2011 ◽  
Vol 50 ◽  
pp. 19-42 ◽  
Author(s):  
Elie Dassa

In recent years, our understanding of the functioning of ABC (ATP-binding cassette) systems has been boosted by the combination of biochemical and structural approaches. However, the origin and the distribution of ABC proteins among living organisms are difficult to understand in a phylogenetic perspective, because it is hard to discriminate orthology and paralogy, due to the existence of horizontal gene transfer. In this chapter, I present an update of the classification of ABC systems and discuss a hypothetical scenario of their evolution. The hypothetical presence of ABC ATPases in the last common ancestor of modern organisms is discussed, as well as the additional possibility that ABC systems might have been transmitted to eukaryotes, after the two endosymbiosis events that led to the constitution of eukaryotic organelles. I update the functional information of selected ABC systems and introduce new families of ABC proteins that have been included recently into this vast superfamily, thanks to the availability of high-resolution three-dimensional structures.


2020 ◽  
pp. 91-94
Author(s):  
T. E. Taranushenko ◽  
E. M. Vasilyeva ◽  
E. V. Antsiferova ◽  
L. N. Karpova ◽  
Y. S. Shamova

The article presents a clinical case of intestinal epithelial dysplasia (tufting enteropathy), a rare disease which relates to congenital diarrheas, has a particular clinical presentation and is life-threating. The diagnosis was confirmed by histological examination and electronic microscopy of mucous membrane of small intestine. Additional evidence is substantiated for the existence of prenatal markers of intestinal epithelial dysplasia represented as polyhydramnios and intrauterine dilatation of fetal intestinal loops. These symptoms are considered to be a clinical hallmark of sodium and chloride diarrheas and are described in single cases in enteropathy called a microvillus inclusion disease.


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