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"Venerate the Lancet": Benjamin Rush's yellow fever therapy in context.

In 1793, during a yellow fever epidemic in Philadelphia, Benjamin Rush adopted a therapy that centered on rapid depletion through purgation and bleeding. His method, especially his reliance on copious bloodletting, was at first widely condemned, but many American practitioners eventually adopted it. Although the therapy struck many observers as being radical, in large part it grew from premises that had substantial support. Rush was convinced that it worked and that heroic methods were the key to conquering disease. In particular, massive bleeding became central to his therapeutics.

Bloodletting↗

Bleeding babies in Badakhshan. Symbolism, materialism, and the political economy of traditional medicine in post-Soviet Tajikistan.

The bleeding of infants via the skin (pile) and the roof of the mouth (qüm) is practiced in Badakhshan, the easternmost province of Tajikistan. Like folk practices elsewhere, pilé and qüm exist at the interstices of modern society and reflect a complex religious, historical, and social response to poverty, marginality, and the global processes associated with the collapse of the Soviet Union. In this article, I attempt to move beyond an ethnomedical analysis by examining these bloodletting practices in the context of their contemporary meaning, as a moral response to suffering and to the social changes that have taken place in the post-Soviet period.

Bloodletting↗

The medicinal leech. A page from the annelids of internal medicine.

Leeches have been used in health care since ancient times by physician and layman alike. As just one of several methods of bloodletting, the leech became the focus of a science that included such subjects as indications, modes of attachment, complications, and relative contraindications. The popularity of leeching has varied immensely over the years. In the 19th century, this annelid saw its numbers decimated because of protean medicinal indications. The leech lost its hold on the practice of medicine in the early 20th century. Recently, the use of leeches has resurged in both the lay and the scientific communities.

Animals↗

Identification of whale species by thin-layer isoelectric focusing of sarcoplasmic proteins.

Thin-layer isoelectric focusing was applied to the identification of whale (Cetacea) species by using water-soluble sarcoplasmic proteins of skeletal muscles. Twenty-eight samples consisting of 4 species (10 samples) of baleen whales (Mysticeti) and 8 species (18 samples) of toothed whales (Odontoceti) were analyzed. Each sample (approximately 1 g) was electrophoresed with Ampholine PAGplate, pH 3.5-9.5. The electrophoretic profiles were species-specific on the 4 toothed whale species that did not have a marked intra-species difference, and all 4 baleen whale species. However, the profiles were not specific on the 4 other dolphin species, even though they were discriminable from the other 4 toothed whale species. Numerical values of pIs and relative peak heights were obtained by densitometric analysis of the isoelectro-focused protein bands. The bands were also species-specific for the 8 toothed whale species mentioned. The values may be applicable to species identification without the need for a standard sample, which may not be readily obtainable. Experiments on test samples of minke and sel whales showed that bloodletting with ice water made the densities of isoelectro-focused bands thinner, although species identification was still possible by using the inside part of muscles. Heat treatment at below 60 degrees C for 10 min caused little denaturation; at higher temperatures the protein bands were diminished in a temperature-dependent fashion. Therefore, the present isoelectric focusing analysis should be applicable to small samples of whale meat, excluding several species of dolphins.

Animals↗

[The characteristics of the clinical course of hereditary hemochromatosis].

The authors describe 32 patients with hemochromatosis observed from 1965 through 1990 (28 men and 4 women). The diagnostic role of serum iron determination and liver biopsy is emphasized. The therapeutic results of bloodletting (500 ml weekly for several years) dyspheral (1-1.2 g intramuscularly daily for 1-2 years and longer). This treatment did not essentially influence the course of diabetes mellitus, liver cirrhosis as well as the articular and endocrine syndromes. The clinical effect of this treatment lasted for 6-8 years.

Bloodletting↗

[Physiological methods of treatment of patients with polycythemia vera].

Based on an analysis of the data pertaining to changes in the level of erythropoietin, chalones and stress hormones in the blood of patients with polycythemia vera after bloodletings and cytapheresis it is concluded that chalones participate in the development of a remission owing to the inhibition of the clone of mutant cells. The role of stress hormones is reduced to the potentiation of the effect of chalones, that of erythropoietin to the triggering of the proliferation of the cellular clone.

Blood Component Removal↗

[Treatment of chronic respiratory insufficiency of pulmonary origin. Clinical considerations].

The key-points of the physiopathological treatment of chronic pneumogenous respiratory insufficiency are: correction of distribution defects, suitable local adjustment of the ventilation: perfusion ratio, and correction of obstacles to alveolocapillary diffusion. Many drugs can be used to obtain these results; bronchodilators, vasoactive drugs, cortisones, cardiokinetics, antibiotics, analeptics. Reference is also made to oxygen therapy, depletion management (bloodletting and-or diuretics, and their possible mechanisms. Lastly, attention is given to disturbances, in acid-base equilibrium in chronic respiratory insufficiency and their correction.

Adrenal Cortex Hormones↗

[Veterinary hematoscopy in late antiquity].

The classical humoral theory was no unfounded abstraction. On the contrary, it was based on phenomena which led to the recognition of the nature of the most important of the four humors: the blood of sick people differed from that of healthy persons. Examples from the works of the Greek and Roman veterinarians of the period from the 3rd to the 5th centuries A.D. are given, that hematoscopy was also performed by veterinarians. Bloodletting was not only a routinely applied preventive measure or a panacea, but also a prerequisite for hematoscopy, and thus a part of diagnostic.

Animals↗

RituaL mutilation. Subincision of the penis among Australian Aborigines.

Subincision of the penis is a traditional ritual mutilation unique to the Aborigines, the indigenous people of Australia. The mutilation is a urethrotomy in which the undersurface of the penis is incised and the urethra slit open lengthwise. Subincision is one element in the initiation of Aboriginal youths. In later ceremonies, repeated throughout adult life, the subincised penis is used as a site for ritual bloodletting. There also exists a ritual of penis holding which occurs when a subincised man enters a strange camp. The origin of subincision and the reason for its localization to the Australian continent has not been satisfactorily explained. The mutilation is still performed among tribal Aborigines, and identifies a man as holding a position of status within the tribe.

Australia↗

Cross-cultural medicine and diverse health beliefs. Ethiopians abroad.

A large number of Ethiopians reside abroad as refugees, immigrants, or students. To provide adequate care, physicians must understand their beliefs about health and medicine. To Ethiopians, health is an equilibrium between the body and the outside. Excess sun is believed to cause mitch ("sunstroke"), leading to skin disease. Blowing winds are thought to cause pain wherever they hit. Sexually transmitted disease is attributed to urinating under a full moon. People with buda, "evil eye," are said to be able to harm others by looking at them. Ethiopians often complain of rasehn, "my head" (often saying it burns); yazorehnyal, "spinning" (not a true vertigo); and libehn, "my heart" (usually indicating dyspepsia rather than a cardiac problem). Most Ethiopians have faith in traditional healers and procedures. In children, uvulectomy (to prevent presumed suffocation during pharyngitis in babies), the extraction of lower incisors (to prevent diarrhea), and the incision of eyelids (to prevent or cure conjunctivitis) are common. Circumcision is performed on almost all men and 90% of women. Ethiopians do bloodletting for moygnbagegn, a neurologic disease that includes fever and syncope. Chest pain is treated by cupping. Ethiopians often prefer injections to tablets. Bad news is usually given to families of patients and not the patients themselves. Zar is a form of spirit possession treated by a traditional healer negotiating with the alien spirit and giving gifts to the possessed patient. Health education must address Ethiopian concerns and customs.

Adolescent↗

Normovolemic hemodilution in head and neck surgery.

As the transfusion risks to which patients are exposed are gradually understood, every effort is being made to find both a valid and safe alternative to homologous blood transfusions. Bearing this in mind, the most sensible solution appears to be the practice of a self-donor procedure with normovolemic hemodilution prior to elective surgery. However, even repeated bloodlettings do not modify the oxygen delivery to tissues since, with a reduction in the hemoglobin content of the circulating blood, there is a corresponding increase in oxygen availability. Since the reduction of circulating erythrocytes brings with it a reduction in blood viscosity, there is in turn an improvement in the microcirculation. The generally better tissue oxygenation, the reduction of the blood's viscosity and the increased circulatory perfusion all also favor a prophylaxis against deep vein thrombosis. We have currently performed 72 surgical procedures for head and neck neoplasms that were undertaken at the Clinical ENT Division of Treviso Hospital precisely with the normovolemic hemodilution described above. The self-donor transfusion technique was adopted with the help of the hospital's transfusion service. We have analyzed the data relative to this method and have found that the normovolemic hemodilution represents the treatment of choice in surgery-induced stress, particularly since this approach allows a better tissue oxygenation.

Adult↗

Intraocular pressure and systemic blood pressure after administration of vasoactive substances in hypertensive and normal rats.

Intraocular pressure (IOP) and arterial blood pressure (BP) were recorded manometrically in normotensive Wistar Kyoto rats (NR) and stroke-prone spontaneously hypertensive rats (SHR). IOP was significantly lower in SHR (7.8 +/- 0.2 mm Hg) compared to NR (15.9 +/- 0.4 mm Hg). In NR, administration of vasoactive substances (kallikrein, bradykinin, angiotensin I and II) or bloodletting resulted in significant IOP reactions, which ran nearly parallel to the acute BP changes. In SHR, however, IOP showed little reaction after comparable changes in BP. The cause of the low IOP in SHR is unknown. It is assumed that in SHR rarefaction of arterioles and capillaries and a decrease in the compliance of eye vessels, in combination with an increase in the distensibility of the bulbus at this low IOP level, contribute to the lack of IOP response after administration of vasoactive drugs.

Angiotensin I↗

Hepatitis B epidemiology and cultural practices in Amerindian populations of Amazonia: the Tupí-Mondé and the Xavánte from Brazil.

Hepatitis B infection and disease are highly endemic in South America. Prevalences of positivity are particularly high in Amazonia, and among Amerindian peoples in particular. This paper reports the results of a seroepidemiological survey for hepatitis B virus (HBV) carried out among four Amerindian populations from the Brazilian Amazon region: Gavião, Surui, Zoro and Navate. Rates of positivity to HBV serological markers (HBsAg, anti-HBs and or anti-HBc) are very high for the four groups, ranging from 62.8 to 95.7%. It is argued that the high rates of positivity in the Amerindian groups dealt with in this study, as well as for other Amazonian populations, are related to a complex of cultural practices which enhance the likelihood of HBV transmission (bloodletting, scarification, tattooing and orally processed food, among others). The authors suggest that, due to unique patterns of interaction between sociocultural and environmental factors. HBV infection assumes a specific profile in native Amazonian societies.

Adolescent↗

French influence on the development of medicine in Louisiana.

The paper presents a brief survey of the state of medicine in the 18th century with an emphasis upon developments in France. In the early nineteenth century the emergence of the Paris Clinical School made France pre-eminent in medicine. Its leaders emphasized localism, correlated symptoms with postmortem reports, and introduced clinical statistics. They also introduced the stethoscope and the techniques of auscultation and palpation and were the first to recognize that excessive bloodletting, purging and other depletory measures were harmful. The French population in Louisiana continued to look to France for educational and intellectual leadership well into the nineteenth century, and the findings of the Paris Clinical School had an immediate impact upon Louisiana medicine, leading to a clash between the French-speaking physicians who emphasized moderation and good nursing and the English-speaking practitioners who believed in drastic intervention.

Clinical Medicine↗

A brief history of epilepsy and its therapy in the Western Hemisphere.

The history of epilepsy and its treatment in the western world dates back at least 4 millennia to the ancient civilization of the middle east. Past and present treatments have been empirical, usually reflecting the prevailing views of epilepsy, be they medical, theological or superstitious. Ancient physicians relied on clinical observation to distinguish between epileptic syndromes and infer their cause. Early pathophysiological theories of epilepsy correctly identified the brain as the site of the problem, but emphasized incorrect causes such as an excess of phlegm in the brain. Treatments consisted of prescribed diets or living conditions, occasional surgery such as bloodletting or skull trephination and medicinal herbs. These treatments, often ineffective, had the intellectual advantage of being based on pathophysiological principles, unlike current, more empirical, therapies. The unfortunate but widely held view of epilepsy as being due to occult or evil influences gained adherents even in the medical world during ancient times, and the later acceptance of Christianity allowed theological interpretations of seizures as well. Magical or religious treatments were more frequently prescribed as a result, practices which persist to this day. In the Renaissance an attempt was made to view epilepsy as a manifestation of physical illness rather than a moral or occult affliction, but it was during the Enlightenment that epilepsy was viewed along more modern lines, helped by advances in anatomy and pathology and the development of chemistry, pharmacy and physiology. The idea that focal irritation may cause seizures came about from clinical and experimental work, and was supported by the successful control of seizures by the (sedative) bromides and barbiturates in the late 19th century. The introduction of phenytoin showed that non-sedative drugs could be effective in controlling seizures as well, and the development of in vivo seizure models widened the scope of pharmaceutical agents tested for their efficacy against epilepsy. Increasing knowledge of the cellular mechanisms of epilepsy will, hopefully, allow the development and introduction of drugs with increasing specificity against seizure activity and the development of epilepsy.

Epilepsy↗

Osteoporosis of hematologic etiology.

OBJECTIVE: Here we present evidence that overexertion of the hematopoietic system following chronic bleeding plays an important role in the etiology of osteoporosis. MATERIALS AND METHODS: C57BL/6 mice were exposed to chronic bloodletting (0.2 mL twice per month for 10 months), total body irradiation (900 cGy), or aging (20-30 months old). Bone marrow from standard untreated donors was transplanted under the kidney capsules of all three categories of recipients to investigate the influence of each of these conditions on new bone marrow formation. Cellularity and histologic structure of developed osteohematopoietic sites and histomorphometry of lumbar vertebrae were studied, thus assessing the role of bleeding, irradiation, and old age on new bone formation and effects on existing bone. RESULTS: Chronic blood loss led to augmented production of hematopoietic microenvironment, relative reduction in the amount of generated bone, and activation of the bone resorptive process in the newly forming osteohematopoietic complex. Similar results were seen in irradiated and senescent mice. Activity, stimulating expansion of hematopoietic microenvironment, was revealed in the plasma of all three categories of experimental mice. Likewise, quantification of the relative amount of bone and hematopoietic areas in skeletal sites showed a significant reduction in bone tissue of the first lumbar vertebrae of chronically bled mice. CONCLUSIONS: Our experimental data, together with existing clinical observations documenting the role of hematopoietic insufficiency in the development of osteoporosis, confirm our working hypothesis that chronic blood loss may be the primary factor responsible for the rapid and consistent development of postmenopausal osteoporosis.

Age Factors↗

Claude Bernard was a 19th century proponent of medicine based on evidence.

The French physiologist Claude Bernard (1813-1878) has the unfair reputation of being ferociously opposed to the use of probabilities and statistics in medicine. In the 19th century, he would have been included among those who opposed the emergence of what would eventually become clinical epidemiology. The truth is that Bernard valued the role of medical statistics in clinical medicine but viewed it as potentially misleading in laboratory-based physiology. He posited that clinical medicine had to be guided by probabilistic evidence as long as physiological mechanisms remained unknown. Bernard praised the clinical researches of Pierre Louis aiming to assess the efficacy of bloodletting in the treatment of pneumonitis. The real objects of Bernard's contempt were the physicians who pretended that medicine was an art strictly based on intuition and tact and who pretended that comparative trials and statistics were useless for clinical medicine. Overall, Bernard was a strong and explicit proponent of the importance of scientific evidence in medical knowledge, be it from experiments or from comparative trials.

Attitude of Health Personnel↗

Mechanism of anemia associated with autonomic dysfunction in rats.

The aim of this study was to elucidate the mechanism of anemia associated with autonomic dysfunction in rats. Using 6-hydroxydopamine (6-OHDA)-treated sympathectomized rats, changes in systolic blood pressure, plasma catecholamine levels, hemograms, erythropoietin (EPO) secretion, and beta-adrenergic receptors on erythrocytes were monitored, and compared with desipramine- and 6-OHDA-treated, and control rats. In 6-OHDA-treated rats, systolic blood pressure and plasma catecholamine levels significantly decreased from 7 days after 6-OHDA administration, returning to the control values on day 28. Hemoglobin (Hb), hematocrit (Hct) and red blood cell (RBC) levels significantly decreased from day 14 to day 28, and reached normal values after day 35, but neither corpuscular constants nor white blood cell (WBC) levels changed after anemia occurred. Administration of desipramine 1 day before 6-OHDA injection prevented anemia. EPO levels did not elevate, even after bloodletting to load anemia, and the EPO circadian rhythm was irregular in 6-OHDA-treated rats. beta-adrenergic receptors measured using 125I-cyanopindolol (CYP) significantly decreased from day 7 to day 28, and reached normal values after day 35. These results suggest that irregular EPO secretion via disordered autonomic nerves may induce anemia in patients with autonomic disorders.

Adrenergic beta-Antagonists↗