Tbc Rationale of Blood Regeneration THE RATIONALE OF BLOOD REGENERATION ROTHSCHILD BROS. & CO., 466 and 468 Broadway, NEWYORK. DANBURY, CONN.: DANBURY MEDICAL PRINTING COMPANY. 1895. The Rationale of Blood Regeneration. THE blood holds in solution certain albuminous bodies of which the principal are serum albumin, serum globulin and fibrinogen; also a number of mineral sub- stances, the chief of which are common salt (sodium chloride) and sodium carbonate. These may be classed as the invisible constituents of the blood, and their in- vestigation belongs to the domain of the physiological chemist. The blood in addition holds in suspension the red and white corpuscles, which admitting of inspec- tion, may be classed as the visible constituents. It is the alteration of these latter, any abnormal change as regards their form, color, size, number and relative proportion, which produces a series of disorders, which, as in chlorosis, often without assignable cause, are char- acterized by profound disturbances. Prof. Frederick P. Henry, of Philadelphia, in a comprehensive monograph on Ancemia, says: “The func- tional power of the blood is dependent upon the number and the quality of its red blood corpuscles. When a deficiency exists in either of these respects, the tissues suffer for the want of oxygen, the most important nutri- tive element of the body.” The resulting condition is called anaemia, and Dr. William Hunter uses this term in its widest sense to include every condition whether local or general in which the blood is either qualitatively or quantitatively impaired. There is, however, a con- 4 sensus of opinion among medical authors, and advanced clinicians, as to the kind of anaemias, and in the most approved nomenclature of the day are styled symtomatic and idiopathic, in place of primary and secondary. For convenience of classification, the following varieties of anaemia may by appropriately grouped: Idiopathic Ancemias. Chlorosis. Lymphatic Anaemia (Hodgkin’s disease). Leucocythaemia. Splenic Anaemia. Pernicious Anaemia. Symptomatic A ncemias. Anaemia of fever. Anaemia of hemorrhage. Anaemia of phthisis. Anaemia of heart disease. Anaemia of cancer. Anaemia of syphilis, etc. Anaemia of poisoning and parasitic origin. The Change of the Blood. Idiopathic anaemias must comply with the follow- ing conditions; A profound radical change in the blood, as deter- mined by actual examination, must of a necessity con- stitute a striking feature of the disease. Again the morbid symptoms must be directly attributable to the altered conditions of the blood—in chlorosis where the number of red blood corpuscles may be normal, but 5 where the haemoglobin, or coloring matter of these blood discs is deficient—in pernicious anaemia where there is a numerical diminution of red blood corpuscles, alterations in the size and shape of the red corpuscle, without any marked decrease of haemoglobin. In per- nicious anaemia, the blood has been aptly compared to water in which beef has been washed. In this form, when the cause is known and not re- movable, the prognosis is hopeless, also when the origin is obscure, the cure is doubtful. In chlorosis, as is well known, the blood corpuscles vary abnormally in size, extremely small ones called poikilocytes being present, and some larger than the ordinary corpuscle, termed megalocytes. Many of the former are extremely minute. A comparison of the anaemia of phthisis with that of chlorosis or leucocythaemia, illustrates the difference between the symptomatic and idiopathic forms of dis- ease. In phthisis, the blood changes, however pro- found, do not by any means constitute the most marked clinical feature. The other symptoms—cough, night- sweats, fever, expectoration—are not dependent on hasmogenic or haemolytic disorder. The condition of the blood throws no light upon the nature of the disease or its seat. Hence the anaemia of phthisis is rightly classed as symptomatic. In chlorosis the blood changes, especially the great diminution in haemoglobin in com- parison with the slight lessening in the number of red Anaemias. 6 blood corpuscles constitute its chief clinical (and in this instance the chief pathological) feature. The pallor, giddiness, debility, breathlessness, palpitation, etc., can be shown to depend on disordered blood formation, which is also the cause of the blood changes themselves. The gastro-intestinal disturbances generally associated with chlorosis have been shown (Bunge) to be due to the excess of decomposition products in the intestine accompanying the characteristic constipation. These break up the iron compounds of the food, and tend to prevent due absorption of iron in its only assimilable form, and so lead to impaired blood production. Chloro- sis in girls is, in fact, an idiopathic anaemia, haemogenic in its origin, and is due to a deficient supply of assimilable iron at a time when the recent onset of menstruation has removed a certain portion of the already small supply of that element present in the body. So, too, in leucocythaemia the blood changes—the abnormal in- crease in the white blood corpuscles and a diminution in the red—constitute the chief clinical features and serve to account for the other symptoms, and, with the alteration in the blood forming organs, present the chief morbid changes discoverable after death. These facts place leucocythaemia among the idiopathic anaemias. Johann Duncan, in 1867 demonstrated that in chlorosis the red corpuscles may be normal in number, while their value—the quantity of haemoglobin they carry—is greatly reduced, other authorities conclude that there must be at least two kinds of chlorosis, one 7 with a normal number of corpuscles deficient in haemo- globin ; the other with a diminished number of corpuscles which may be either normal or deficient with regard to their haemoglobin. Virchow attributes some cases of chlorosis to imperfect development of the heart and blood vessels, but this theory.has not, however, met with general acceptance. Much obscurity surrounds the subject of chlorosis, and it is one of those pathways in the science of medi- cine which has been strewn with the wreck of pet theories. From a careful study of its clinical history, the only valuable therapeutic data that may be obtained is that iron is the specific treatment, and that form of iron, which is most assimilable and best equips the respiratory functions of the blood, increasing its cor- puscular activity and haemoglobin value so that it will as it passes through the lungs take up the extra atom of oxygen, for which this metal has a remarkable affinity and convey it to the tissues which demand nutrition. How Iron Acts. The precise mechanism by which iron enters the blood has long been a subject of controversy among physiologists. It being agreed that it is an essential constituent of the red blood corpuscle, there are at the present time three distinct theories as to its modus oper- and!. i. Since iron cures certain conditions in which the iron of the blood is deficient such as anaemias, chlorosis, etc., it has been very generally assumed that it must be 8 absorbed, and in confirmation of this view, there is a considerable amount of experimental evidence. 2. The second theory rests on the supposition that iron preparations given by the mouth are not ab- sorbed. It is argued that the iron of the food, which equals about 6 to 9 cc. daily in an ordinary diet, is more then sufficient to make up any deficiency in the blood and that unused iron is always being excreted from the bowel even in chlorosis. The intestinal mucous mem- brane, however, is supposed to be so bloodless, that it cannot properly perform its absorptive functions, hence the iron of the food is not taken advantage of, but when inorganic iron is given, it stimulates and tones up the gas- trointestinal mucous membrane, so that digestion and absorption of food takes place satisfactorily, and in a short time, the iron in the dietary makes good the deficiency in the blood. It is extremely doubtful whether this theory has or ever had many supporters. Among them however, may be cited, Buchheim, Kletzinsky, Kobert and Dujardin- Beaumetz. The last named after advancing arguments against the probability of the absorption of iron and stating that in chlorosis it acts simply by stimulating appetite and digestion, claims to get better results from arsenic, quinine, diet and hygienic measures, than from heroic doses of inorganic iron, and further doubt has been thrown on this theory of stimulation by the injec- tion of iron subcutaneously and its subsequent passage from the blood through the wall of the gastro-intestinal 9 canal, giving to us the a priori argument that if, by the process of endosmosis, iron may pass from the blood through the walls of the alimentary canal, it may with equal facility by the opposite process (exosmosis) pass through the walls of the alimentary canal into the blood; on that account, although absorbed into the blood, be absent from the bile and urine. While the physiological presence of increased iron in the blood would seem to refute the theory of stimulation, Kobert and Cahn, ex- perimented with manganese, which is an element foreign to the body and easily detected. They have proved that it is not absorbed and from analogy, conclude that iron also is not. Bunge explains the usefulness of iron in chlorosis by its forming iron sulphide in the intestines and remov- ing in this way excess of sulphur from the body. In chlorosis there are excessive fermentative processes in the alimentary canal and intestines, large quantities of sulphuretted hydrogen being formed which destroy the organic compounds of iron that form haemoglobin, x (Stockman, British Medical Journal). If sulphide of iron cures anaemia and chlorosis, which it sometimes does when given by the mouth, it disproves Bunge’s theory, for if iron sulphide be the form employed, it cannot take up any more sulphur and it is therefore useless as an absorbent of the sulphuretted hydrogen, and being non-astringent it cannot locally stimulate the muc- ous membrane. If it cure anaemia it must do so by be- ing absorbed. If bismuth, manganese and other drugs,—which are just as capable as iron is of absorbing sulphuretted hydrogen and acting as intestinal stimulants, should prove inert in chlorosis, it forms an additional reason, says Stockman, “for regarding the absorption of iron as indirectly proved.” People in health, make up the wear and tear of physi- ological iron from the food they eat and this fact would seem to point to a logical, rational and now well estab- lished principle of iron administration. The employ- ment of a neutral organic preparation of iron,—one that does not convert the stomach into a miniature laboratory, or having any pronounced tendency to exaggerate the pathological conditions incident to anaemia or chlorosis. Modern medical skepticism, however, seems to have attacked even this apparently well established doctrine despite the clinical teachings of Neimeyer, and the ex- haustive and patient researches of eminent physiologists, as to the passage and absorption of iron when taken either as a food or medicine. The Natural Supply of Iron. At the recent Congress of Internal Medicine in Munich, April, 1895, the therapy of iron was the main topic of discussion; many conceptions as to the use of iron handed down from former times, were cleared away, and exact observations based upon physiological facts, shown to be more consonant with nature. Our foods from which the body obtains its requisite supply of iron, contain other fixed combinations of this 11 metal which can be absorbed and assimilated. The small amount of iron contained in milk is surprising. The young animal has its maximum supply of iron at its birth, this supply then rapidly decreases, and afterwards only becomes greater in the same proportion as the weight of the body increases. The absolute quantity re- mains small. If young animals should be nourished en- tirely with milk, they would become anaemic. From this arises the important problem whether children should be nourished with milk after the ninth month, and hence the efficacy of a pure milk diet in anaemia, simple or com- plex, is disputed. The inorganic salts of iron render no ma- terial aid for the formation of haemoglobin; being insolu- ble and by reason of their irritant properties, they become progressively inefficient, acting at best as gastrointes- tinal stimulants, leaving in their wake many unpleasant sequelae. “If you wish to give iron,” says Prof. Bunge of Bale, “it should rather be procured from the markets than the drug stores.” Many foods especially meats, eggs, spinach and other vegetables are so rich in iron that as much, says the above authority, can be supplied through them as by medication with ferric remedies, provided that the appetite of the patient is normal and good. It is this last inference, and proviso that renders Bunge’s theory untenable. Few chlorotic or anaemic patients enjoy good or normal appetite, per contra, every practitioner can call to mind the languid attempts at eating and the abnormal cravings of his chlorotic patients. In fact, Prof. Bunge’s paper read at Munich, while it attracted much attention, elicited general contradiction, Prof. Quincke of Kiel,emphasized the principle of adherence to established and approved facts. Whether there be a theory to explain it or not, ripe observation and clinical experience do not admit of any doubt as to the good effects of iron medi- cation, where it can be promptly absorbed, and used with general and universal satisfaction.” If Bunge is correct, says Prof. Zimmerman of Bale,” chlorosis would never develop in girls belonging to families in affluent circum- stances because they eat plenty of meat,'vegetables and other food containingiron.” He furthermore maintains, and proves, that the dietetic treatment of poor, badly fed chlorotic girls may bring about better nutrition, but not a cure of chlorosis. Zimmerman claims that the neutral organic preparations of iron are excellent promoters of nutrition and all vital functions, and that chlorosis is not produced by a deficient supply of foods containingiron, but by a want of vitality of the organs that produce blood- Professors Nothnagel of Vienna, Ziemssen of Mu- nich, Erb of Heidelberg, Bauember of Freiburg, Edlef- son of Kiel, Ewald of Berlin and many others of contemporary prestige, gave their unqualified adherence to the remedial value of iron, in fact, the weight of authority is in favor of its use, and the result of the recent discussions may be summed up in the statement; that the value of iron medication remains an indispen- sable and imperative factor in therapy. While its place seems to be assured in the domain of materia medica and therapeutics, iron is frequently The Utility of Iron. given with disappointing results, and in cases where the indications for its exhibition are well defined; this is particularly true of the inorganic forms of iron. The best measure of the value of iron administration, is its solubility and facility of absorption—the quantity taken up and not the quantity prescribed. Iron is not absorbed in the stomach, it passes through that viscus to find in the duodenum the conditions necessary for its absorp- tion, and the subsequent performance of its functions of oxidation as an element of the red blood corpuscle. From the mouth to the duodenum, the chemical changes which iron undergoes, is complex, varied, and in some respects conjectural. It is to this fact that we owe the multiplicity of ferric remedies, and are burdened not so much by an embarrassment of riches, but rather a throng of mediocrity from which to choose. Again, this com- plexity of iron transformation has led to the employ- ment of other drugs such as arsenic, bismuth and man- ganese, either alone, or when compatible, with iron. It would be a work of supererogation at this day, to teach the profession their value, as their therapeutic proper- ties have been thoroughly studied. Owing to its higher oxidizing power, manganese has some reputation as a hcematinic, but as it is always used as an adjuvant to iron, its efficacy has not been clearly established and it is now only used empirically upon the ground that in combination with iron, it helps the latter. As the human body only contains 2 to grammes of iron and no appreciable quantity of manganese, that is to say when manganese is present it is purely accidental and is notan essential component of any tissue or organ, but is derived from vegetable food which in turn gets it from the soil. Whatever reputation manganese enjoys is through the researches and advocacy of Hannon, but as he and others always gave iron along with it in the proportion of about six times as much iron as manganese, the role of the latter would seem to be unimportant. Glenard in examining the blood of forty persons in good health, who were bled, found in one only a trace of manganese and as he found none in the blood of manganese miners, argued that the metal could not be absorbed by any channel. Robert and Cahn have proved that manganese salts given by the mouth are not absorbed. Stockman states that he never saw the slightest improvement from the use of manganese, and that Its failure in chlo- rosis was marked. This brings us back again to the dictum of Niemeyer, “the intelligent and persistent use of iron,” and that form of iron which meets all the re- quirements of a progressive therapy and rational devel- opment. The value of the carbonate of iron (Blaud mass) is due to the fact that this salt possesses a volatile acid which is liberated by the acids of the gastric juice and the consequent formation of a more soluble base. When physiologists recognized hydrochloric and lactic acids, chemists produced chlorides and lactates of iron. Upon the further intimate association of iron with albumen, the albuminates of iron came into vogue, but all of these were stepping stones, merely “curtain raisers” to the drama of iron digestion and absorption. Just as true that proteid food must be peptonized, or become peptones in order to contribute directly to nutrition, so, said Claud Bernard, “all iron must enter into the circulation in its ultimate form of assimilation, which is a peptonate.” As a result of specialized effort in this direction, after patient research and careful investiga- tion, that distinguished pharmacologist, Rud. Pizzala, first gave to the world a true iron peptone in the form of his now highly esteemed elixir, not a mere ferrugin- ous solution, but a true combination, chemically correct and therefore of therapeutic importance. The Problem Solved. Rudolph Pizzala seems to have been the first one to solve the problem of rendering an iron preparation capable of being absorbed without undergoing chemical change. Pizzala’s Elixir Peptonate of Iron is held in high esteem by such authorities as Erb, Nothnagel, Ewald, Quincke "and other German authorites. It was frequently prescribed by the late Sir Andrew Clarke of England. It enjoys a large and increasing favor and stands very high in the newer materia medica. It is free from the objectionable characteristics of other iron preparations producing no plethora or hepatic congestion, even when pushed to the point of physiological tolerance. Pizzala’s Elixir of Peptonate of Iron is an impor- tant addition to our therapeutic resources not only as a potent blood reconstructive but as an ideal systemic tonic, because •• The chemical formula of Pizzala’s elixir so closely resembles that of the human oxy-hasmoglobin, the formula of the first being C H N FeS O 600960 154 119 and of the oxy-haemoglobin C H N FeS O. 600 960 154 3 119 In view of the above, we are justified in saying that Pizzala’s Peptonate of Iron is an oxy-haemo- globin synthetically prepared. A true peptonate of iron occurs as a powder, which, unless suspended in an alco- holic elixir will deteriorate and decompose. The basis of Pizzala’s is io