Correlation between follicle-stimulating hormone, luteinizing hormone, prolactin, and testosterone with sperm cell concentration and motility.

Follicle-stimulating hormone (FSH), luteinizing hormone (LH), prolactin (PRL), and testosterone were measured by radioimmunoassay in blood and seminal plasma of normo-spermic and oligospermic men. These parameters were correlated with sperm cell concentration as well as sperm motility. Average motility in the oligospermic group was significantly decreased as compared with the normospermic group (P less than .

The structure of the voltage-sensitive sodium channel. Inferences derived from computer-aided analysis of the Electrophorus electricus channel primary structure.

A variety of computer-aided analyses was applied to the recently derived amino acid sequence of the Electrophorus electricus sodium channel protein in order to extract structural information such as hydrophobicity, periodicity, and secondary structure predictors. We propose a schematic model for the arrangement and folding of the polypeptide chain within the bilayer. The model consists of 4 homologous regions, each containing 8 membrane-spanning (probably alpha-helical) structures.

Pituitary responsiveness to luteinizing-hormone-releasing hormone in different reproductive disorders. A review.

As a result of the use of synthetic luteinizing-hormone-releasing hormone (LHRH) (and its analogs), significant advances in modern clinical practice are being realized. We studied the use of LHRH as a test for pituitary reserve for gonadotropin secretion in different reproductive disorders. Synthetic LHRH was used as a diagnostic test for discriminating pituitary from hypothalamic disorders.

Statistical modeling of clinical intake decisions.

Modeled the intake decisions of four clinicians and a group of clinicians at a community mental health center by principal components-discriminant function analysis. The models of two clinicians and the group-based models withstood replication by the jackknife technique of discriminant analysis. Results showed that clinicians' written notes can be used to predict their decisions.

Content and response-style in the construct validation of self-report inventories: a canonical analysis.

A common problem in establishing the construct validity of self-report inventories is the confounding of the purported meaning of test scores with response styles such as social desirability. Partial correlation is a traditional method of controlling such confounding effects. This paper demonstrates the analytic and interpretive advantages of using canonical correlation to remove the effects of a confounding variable.

Hormone therapy for sexual dysfunction. The only "true aphrodisiac".

Human sexual behavior is extremely complex indeed. It has been described as the sum total of an individual's makeup, which includes chromosomal sex, gender identification, gonadal adequacy, rearing, environmental influences, hormonal factors, and possible hypothalamic sensitization. In recent years, much has been written about the importance of the psyche in matters of sex and about the mechanics of coitus, as well as the proper amatory prelude.

Role of estrogens and progesterone in the etiology and prevention of endometrial cancer: review.

Our present knowledge of the role of sex steroids in the development as well as the prevention of endometrial cancer is reviewed. Factors which increase the exposure of the uterus to unopposed estrogens, either exogenous or endogenous, are associated with increased risk of endometrial adenocarcinoma. However, there is increasing evidence that progestogens can reverse endometrial hyperplasia and protect against the development of endometrial cancer.

Adapting lights and lowered extracellular free calcium desensitize toad photoreceptors by differing mechanisms.

Extracellular recordings were made across the outer segment layer of isolated, superfused toad retinas. Under these recording conditions, the photovoltage reflects primarily the current flowing through the outer-segment membrane of red rods. In normal toad Ringer solution, a dim conditioning flash desensitized a test flash response.

The protective role of progesterone in the prevention of endometrial cancer.

An association between endometrial hyperplasia and corpus cancer has long been suspected. Genetically predisposed women are at greater risk of developing endometrial cancer if subjected to long uninterrupted period of estrogen stimulation. Endometrial cancer need not be inevitable if 14 day courses of an oral progestogen are continued for as long as is necessary; in some women, however, the lesions will progress and, therefore, should be carefully followed with repeated endometrial biopsies.

The role of estrogens in mastopathy and mammary cancer in perimenopausal women.

Fibrocystic disease of the breast (FCD) is an exaggeration of the normal physiologic response to cyclic estrogen and progesterone stimulation. The disorder can persist, with much less severity, in the menopausal woman. Whether FCD predisposes to mammary cancer remains moot.

Fibrocytic breast disease: current status of diagnosis and treatment.

Improved diagnostic procedures and use of a new steroidal agent, danazol (Danocrine), should reduce the need for surgical intervention in fibrocystic breast disease. Thermography, a non-invasive procedure that may be used with impunity, may help identify women at high risk. Mammography, which is useful in revealing malignancy in an early stage, should be done in women with tow consecutive abnormal thermograms.