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The adrenalin index as used in this paper means the amount of adrenalin in milligrams per gram of gland. As in our hands the chemical colorimetric method has proved more accurate, these values rather than the physiological values will be given in the final analysis. The two adrenal glands in the same individual as a rule contain about the same amount of adrenalin per gram, but variations of 10 to 20 per cent. are not unusual. Normal dogs show an index which may vary from 1.2 to 1.8 milligrams. The dogs were killed by short ether anesthesia and bleeding from the carotid. Normal human beings, dying from trauma, rupture of aneurysm, etc., show an index of 0.35 to 0.50 of a milligram, when autopsy takes place a few hours after death. Deterioration of uncut glands or of a gland hash kept on ice in the dark is not rapid and rarely exceeds 10 per cent. in twenty-four hours. Acute intoxication in dogs shows a low adrenalin index, especially the intoxication associated with intestinal obstruction and the closed intestinal loop. Intravenous injection of the poison found in closed duodenal loops sufficient to cause fatal shock causes a great drop in the adrenalin index, at times to one fourth normal or even lower. After recovery from a sublethal toxic dose the adrenalin index may rise rapidly to a point considerably above normal. The same may hold for recovery after chloroform poisoning. Anesthesia by chloroform or ether causes a drop in the adrenalin index depending upon the length of anesthesia and probably in part on the depth of anesthesia. Liver poisons (chloroform, phosphorus, hydrazine) cause a drop in the adrenal index to a low level, perhaps one half normal in acute cases. Pancreas extirpation with prolonged glycosuria and death produces a great drop in the adrenalin index (cat). There is evidence that this may hold in some cases of human diabetes. In man disease of one adrenal (tuberculosis) may be associated with an adrenalin index of double the normal value in the intact adrenal. Pernicious anemia is the only disease so far found to present an abnormally high adrenalin index, and the single case shows an index at least twice normal. This is of interest especially in relation to the views recently put forward to indicate that the spleen and adrenal may be concerned in the lipoid metabolism which is thought to be profoundly disturbed in this disease. Secondary anemia due to repeated hemorrhage or the intoxication of cancer or tuberculosis causes a fall in the adrenalin index. Cachexia due to neoplasm or tuberculosis may cause a marked fall in the adrenalin index, perhaps to less than one half of normal. Acute infections (typhoid fever), septicemia, peritonitis, and similar conditions may be associated with a normal adrenalin index or one somewhat below normal. Diseases of the kidneys, heart, or blood vessels associated with elevated blood pressure show no constant variation in the adrenalin index, which may be normal or slightly subnormal.
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PMID:THE ADRENALIN INDEX OF THE SUPRARENAL GLANDS IN HEALTH AND DISEASE. 1986 91

1. Small quantities of antiserum bring about instantaneous agglutination of pneumococci in the circulation of the rabbit; the reaction is specific and occurs in every case in which sufficient serum is given to influence the course of the septicemia or to prolong the life of the animal. 2. The agglutinating titer of antipneurnococcus serum can be made considerably higher by adding only a small quantity of culture to the tests, thus making the test a finer differential. 3. Typhoid bacilli agglutinate spontaneously in the circulation of the normal rabbit; the reaction is positive in vivo even in cases in which undiluted serum gives a negative result in vitro; heating the bacilli to 80 degrees C. for thirty minutes renders them more agglutinable in vivo. 4. Dysentery bacilli of the Shiga type do not agglutinate in the blood stream of the normal rabbit, but a small quantity of antiserum injected into the circulation causes immediate agglutination; while all strains of the Flexner group undergo spontaneous agglutination. 5. Non-virulent influenza bacilli agglutinate spontaneously in the circulation of the normal rabbit; virulent strains remain in the blood unclumped. 6. In all instances so far investigated of both passive and natural immunity, agglutination of the bacteria within the blood of the infected animal was followed by a rapid removal of the bacteria from the circulation, and by phagocytosis and destruction of the agglutinated bacteria in the capillary systems of the viscera; while those bacteria which are not agglutinated remain in the circulation and produce a progressive septicemia. 7. Hence the agglutinins seem to play the decisive part in at least certain instances of bacterial infections.
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PMID:THE AGGLUTINATION OF BACTERIA IN VIVO. 1986 32

1. The theory of the production of gall-bladder lesions in typhoid, by descending infection of the bile from the liver receives support from investigations with the common duct fistula method in the rabbit. More bacilli appear in the bile with increased doses and more gall-bladder infections are obtained by increased doses. More bacilli appear in the bile after mesenteric vein injection than after ear vein injection and more lesions result under the first condition. More bacilli appear in the bile after injection of the same dose in immunized animals than in normal animals and more lesions also result in immunized animals. In cholera and dysentery the same mechanism is suggested with the additional factor of a portal system septicemia. 2. After the appearance of microorganisms in rabbit bile, their fate is apparently largely determined by the antiseptic properties of the bile. 100 per cent infections cannot be secured by intravenous doses large enough to insure the presence of microorganisms in the bile. Rabbit bile in vitro may be antiseptic to the microorganisms considered. The antiseptic action is largely due to its alkalinity. It is apparently possible to protect the rabbit to some degree against gall-bladder infection by a previous injection of sodium bicarbonate. 3. Alkaline therapy is suggested in the prevention and cure of gall-bladder carriers.
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PMID:EXPERIMENTAL OBSERVATIONS ON THE PATHOGENESIS OF GALL-BLADDER INFECTIONS IN TYPHOID, CHOLERA, AND DYSENTERY. 1986 57

Mice bred at The Rockefeller Institute vary in their susceptibility to mouse typhoid infection caused by a certain strain of Bacillus pestis caviae. This graded variation may be roughly analyzed as follows: in any series infected per os with a fixed dose, 20 to 30 per cent show no sign of infection, no positive blood cultures, and no agglutinins; 5 or 10 per cent present symptoms of disease, positive blood cultures, and then recover with or without homologous agglutinins; 70 or 80 per cent develop positive blood cultures and succumb in a more or less constant ratio relative to time. The strain of Bacillus pestis caviae employed throughout a 10 month series of experiments has shown no permanent change in virulence. Blood cultures taken from infected mice early in disease, shortly after death, and 6 days after death, chronic stool carrier cultures, and chronic septicemia cultures, all show approximately the same degree of virulence.
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PMID:MICROBIC VIRULENCE AND HOST SUSCEPTIBILITY IN MOUSE TYPHOID INFECTION. 1986 24

In this paper we have attempted to describe the manner of spread of an endemic, native, respiratory infection and a method for its control. The essential factor determining the prevalence of such an endemic disease is, we believe, host susceptibility, which is controlled by hereditary and environmental influences. Furthermore, it seems probable that the amount of this population susceptibility determines the dosage of specific microbes available to the population. An increase in dosage in the herd is followed by an increase in the spread and severity of the infection, and a decrease by a corresponding alleviation. Hence, two methods for the prevention of epidemics are available: (1) an enhancement of population resistance, and (2) the reduction to a minimum of available dosage. These procedures have proved successful for 3 years in maintaining a population of breeding rabbits, in the midst of a badly infected community, entirely free from Bact. lepisepticum infection. Confirmation of the above conclusions has been gained from other studies in the field of experimental epidemiology. Dr. D. T. Smith (2), at Saranac, New York, found that changes in population susceptibility were responsible for a severe outbreak of Bact. lepisepticum infection and septicemia. Freund (3), at Berlin, has just published an interesting account of respiratory epidemics of rabbits and guinea pigs, apparently brought about by sudden changes in temperature and housing conditions. Pneumonia and Pasteurella infection, endemic in the population, increased suddenly in extent and severity. Nevertheless, neither endemic nor epidemic strains of the microorganisms were found to be especially virulent. Dr. Theobald Smith (4), in a study of paratyphoid epidemics of guinea pigs, has made similar observations. He noted that pregnant females acted as the foci of infection, and that from these individuals, presumably of lessened resistance, the bacteria were given off and infection was spread. The studies in experimental epidemiology are rapidly reaching a stage where they may be applied to the problems of human disease. Indeed, more recent observations of the mode of spread of pneumonia (5-7), scarlet fever (8), typhoid (9, 10), plague (11), diphtheria (12-14), measles (15), and tuberculosis (16-18) increasingly show a tendency to discard the theory of fluctuating microbic virulence and to emphasize the importance of the host factors.
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PMID:BACTERIUM LEPISEPTICUM INFECTION : ITS MODE OF SPREAD AND CONTROL. 1986 98

The human trichinosis is a cosmopolitan rare zoonosis in Mexico. It presents clinically, with an infectious toxic pattern. Typical symptomatology includes: fever, diarrhea, facial edema and myalgias, which can resemble other illnesses like typhoid fever, angioneurotic edema, septicemia, rheumatic disease-like vasculitis and dermato-polymyositis. The treatment is based on the use of antiparasites. In this paper a trichinosis case is described in a woman, 29 years old who lives in the metropolitan area, with a clinical pattern that suggest polymyositis. The diagnosis was confirmed through a muscle biopsy. The treatment was albendazole and prednisone with successful results.
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PMID:[Human trichinosis. A case simulating polymyositis]. 2014 64

Typhoid is associated with a number of complications and is commonly seen in India. Rhabdomyolysis is rarely reported. We report herewith a patient with Salmonella typhi sepsis who presented with rhabdomyolysis and acute renal failure.
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PMID:Salmonella typhi sepsis and rhabdomyolysis with acute renal failure: a rare presentation of a common disease. 2058 82

In the late 1960s, the combination of trimethoprim and sulphamethoxazole (co-trimoxazole) was introduced into clinical practice and used to treat many infectious diseases, such as urinary tract infections, respiratory infections, sexually transmitted diseases, Gram-negative sepsis, enteric infections and typhoid fever. Subsequently, co-trimoxazole was reported to be effective against numerous bacterial, fungal and protozoal pathogens, including Nocardia, Listeria monocytogenes, Brucella, Stenotrophomonas maltophilia, Burkholderia, Coxiella burnetii, Tropheryma whipplei, atypical mycobacteria, and Pneumocystis jirovecii. Among protozoal infections, in addition to toxoplasmosis, co-trimoxazole has been used to treat susceptible Plasmodium falciparum, Cyclospora and Isospora infections. Several retrospective and prospective studies have demonstrated good clinical outcome with co-trimoxazole in treating invasive methicillin-resistant Staphylococcus aureus infections. We summarize herein the accumulated evidence in the literature on the new, 'unconventional' clinical use of co-trimoxazole during the last three decades. In the era of widespread antibiotic resistance and shortage of new antibiotic options, large-scale, well-designed studies are needed to explore the tremendous potential concealed in this well-established drug.
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PMID:Contemporary unconventional clinical use of co-trimoxazole. 2185 85

Bacterial cultures and chemical analyses were performed from cloacal and oral swabs taken from 43 American crocodiles Crocodylus acutus and 28 Morelet's crocodiles C. moreletii captured in Quintana Roo State, Mexico. We recovered 47 bacterial species (28 genera and 14 families) from all samples with 51.1% of these belonging to the family Enterobacteriaceae. Fourteen species (29.8%) were detected in both crocodile species and 18 (38.3%) and 15 (31.9%) species were only detected in American and Morelet's crocodiles, respectively. We recovered 35 bacterial species from all oral samples, of which 9 (25.8%) were detected in both crocodile species. From all cloacal samples, we recovered 21 bacterial species, of which 8 (38.1%) were detected in both crocodile species. The most commonly isolated bacteria in cloacal samples were Aeromonas hydrophila and Escherichia coli, whereas in oral samples the most common bacteria were A. hydrophila and Arcanobacterium pyogenes. The bacteria isolated represent a potential threat to crocodile health during conditions of stress and a threat to human health through crocodile bites, crocodile meat consumption or carrying out activities in crocodile habitat. We especially warn about the presence of Salmonella arizonae and S. typhi, which cause enteritis and septicemia in crocodiles and salmonellosis and typhoid fever in humans. The risk of bacterial contamination from crocodiles to humans could increase in the future because of the accelerated destruction of crocodile habitat, which could lead to an augmentation of human-crocodile interactions. Information on bacterial diversity reported here could help in the choice of antibacterial products in case of infections that are of crocodile origin.
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PMID:Oral and cloacal microflora of wild crocodiles Crocodylus acutus and C. moreletii in the Mexican Caribbean. 2242 27

Pneumococcal and Salmonella typhi infections are two major diseases for children in developing countries. For typhoid fever, licensed Vi polysaccharide vaccines are ineffective in children <2-year old. While investigational Vi conjugate vaccines have been shown effective in clinical trials, they are currently only available to restricted areas. Pneumococcal capsular polysaccharide conjugate vaccines are highly effective in children, but suffer from some limitations including cost and limited serotype coverage. We have previously shown that a fusion conjugate vaccine, consisting of pneumococcal fusion protein PsaA and pneumolysoid (PdT) conjugated to a polysaccharide, results in enhanced antibody and CD4+ Th17 cell responses as well as protection against pneumococcal colonization and disease in mice. Here we applied this approach to develop a bivalent vaccine against pneumococcus and S. typhi. Two species-conserved pneumococcal antigens (SP1572 or SP2070) were fused to the nonhemolytic pneumolysoid PdT. SP1572-PdT was then conjugated to Vi polysaccharide and SP2070-PdT was conjugated to the pneumococcal cell wall polysaccharide (CWPS; also conserved). Mice immunized with this bivalent conjugate were protected against pneumococcal colonization and sepsis challenges, and made anti-Vi antibody concentrations higher by 40-fold compared to mice that received equimolar mixtures of the antigens. An enhanced killing of Vi-bearing Salmonellae in vitro was demonstrated from plasma of mice that received the fusion conjugate but not the mixture of antigens. Our results support further evaluation of this bivalent immunogen for the prevention of pneumococcal colonization and disease, and of typhoid fever.
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PMID:A bivalent vaccine to protect against Streptococcus pneumoniae and Salmonella typhi. 2246 50


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