MONOAMINE oxidase (MAO) has been the focus of several studies seeking to link biochemical and psychologic phenomena. It is a crucial enzyme involved in the degradation of biogenic amines that are important to the regulation of behavior, and is very ...

NORMAL humoral immunity is based on an intricate network of co-operating lymphocytes and accessory cells. Thymic-derived lymphocytes (T cells) play an important part in the regulation of humoral immune responses by acting as potentiators or inhibitors of ...

THE perinatal switch from fetal to adult hemoglobin formation is a well known ontogenic event whose mode of regulation remains unclear. After birth, hemoglobins A and A₂ are predominantly synthesized, but fetal hemoglobin (hemoglobin F) continues to be ...

HUMAN illness caused by Yersinia enterocolitica was first described in New York State, in 1933.¹ Despite this initial observation, yersiniosis has been recognized in this country much less frequently than in other areas of the world, such as Scandinavia,² ...

IN normal subjects, increased glucose utilization by exercising muscle is accompanied by an increase in hepatic glucose production.^{1 , 2} Contributing to the maintenance of glucose homeostasis during exercise is a decrease in endogenous insulin secretion^{1 ...}

Microbial Interactions Resulting in Facilitated Colonization of Potential Hosts

Although polymicrobial infections occur with regularity in immunosuppressed patients, the combination of Pneumocystis carinii and cytomegalovirus infections occurs much more ...

FORMATION of stones within the urinary tract is a complication of many varied metabolic disorders.¹ The nutritional aspects of urolithiasis, especially if one includes fluid intake, are important in both cause and treatment. From the time of Hippocrates, ...

INFECTIOUS mononucleosis is usually a self-limited lymphoproliferative disease caused by the Epstein–Barr virus.¹ However, fatal cases do occur. Up until 1970 only 20 deaths due to infectious mononucleosis had been reported in which both hematologic and ...

THE association of atrophy of one endocrine organ with atrophy of another endocrine organ (idiopathic Addison's disease, Hashimoto's thyroiditis, gonadal atrophy, diabetes mellitus and hypoparathyroidism) and with other illnesses (myasthenia gravis, ...

Presentation of Case

A 33-year-old man was admitted to the hospital because of painful legs.

The patient was known to have the von Hippel-Lindau syndrome. At the age of 14 years a left retinal hemangioma was found. Seven years later a left cerebellar ...

The immune system is gradually being revealed as an incredibly complex network of interacting cells and their molecular products, which counterbalance one another and are influenced in their relative effects by contact with antigenic molecules of the ...

Blood cells, like blossoms of a floribunda, arise together from a single branch. Clinicians have long assumed that granulocytes, megakaryocytes and erythroid cells have a common origin because all three cell lines may be involved to a varying degree in ...

Kidney stones are among the commonest of renal disorders, but until recently, they were neglected by specialists in renal medicine and by kidney physiologists. Perhaps this neglect was an unconscious residuum of the Hippocratic Oath requiring initiates to ...

To the Editor: Dr. Mann (N Engl J Med 297:644, 1977) states "...the epidemic [of coronary heart disease] continues unabated, [and] cholesteremia in the population is unchanged." Both statements are incorrect.^{1 2 3} He further states, "Risk factors for ...

No extract is available for articles shorter than 400 words.

To the Editor: The recent article by Oh and Carroll¹ points out the physiologic basis and clinical utility of the anion gap. Causes of an increased anion gap are well known to most internists. However, causes of a decrease in this number have only ...

No extract is available for articles shorter than 400 words.

No extract is available for articles shorter than 400 words.

No extract is available for articles shorter than 400 words.

No extract is available for articles shorter than 400 words.

To the Editor: As written, Medicare has a front-end deductible, like automobile insurance. Its purpose is to discourage a useless burden on the system, many relatively small claims. In effect, however, modest claims are actually discouraged and large ...

SEMINARS IN MEDICINE OF THE BETH ISRAEL HOSPITAL

Seminars in Medicine of the Beth Israel Hospital will be held in the George Sherman Auditorium, Beth Israel Hospital, Boston on the following Tuesdays at 4 p.m.

SEMINAR ON GYNECOLOGICAL ONCOLOGY

"Current ...

No extract is available for articles shorter than 400 words.