Larry Johnson

Larry Johnson's AcademicInfluence.com Rankings

Larry Johnson

Biology

#15107

World Rank

#19022

Historical Rank

Endocrinology

#228

World Rank

#245

Historical Rank

biology Degrees

Download Badge

Biology

Larry Johnson's Degrees

PhD Endocrinology Stanford University

Why Is Larry Johnson Influential?

(Suggest an Edit or Addition)

(See a Problem?)

Larry Johnson's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Leydig cell numbers, daily sperm production, and serum gonadotropin levels in aging men. (1984) (441)
Quantification of the human Sertoli cell population: its distribution, relation to germ cell numbers, and age-related decline. (1984) (239)
Role of Sertoli cell number and function on regulation of spermatogenesis. (2008) (202)
Age-related changes in the Leydig cell population, seminiferous tubules, and sperm production in stallions. (1981) (197)
Spontaneous germ cell apoptosis in humans: evidence for ethnic differences in the susceptibility of germ cells to programmed cell death. (1998) (174)
Influence of age on sperm production and testicular weights in men. (1984) (160)
A comparative study of daily sperm production and testicular composition in humans and rats. (1980) (158)
Efficiency of spermatogenesis: a comparative approach. (2000) (158)
A new approach to quantification of spermatogenesis and its application to germinal cell attrition during human spermiogenesis. (1981) (126)
Further quantification of human spermatogenesis: germ cell loss during postprophase of meiosis and its relationship to daily sperm production. (1983) (111)
Effect of daily spermatozoan production but not age on transit time of spermatozoa through the human epididymis. (1988) (111)
The Effect of a 5α-Reductase Inhibitor on Androgen Physiology in the Immature Male Rat* (1989) (92)
Number and function of Sertoli cells, number and yield of spermatogonia, and daily sperm production in three breeds of boar. (1996) (91)
Efficiency of spermatogenesis (1995) (88)
Age-related change in numbers of other interstitial cells in testes of adult men: evidence bearing on the fate of Leydig cells lost with increasing age. (1985) (82)
Age-related variation in seminiferous tubules in men. A stereologic evaluation. (1986) (73)
Effects of developmental exposure to indole-3-carbinol or 2,3,7,8-tetrachlorodibenzo-p-dioxin on reproductive potential of male rat offspring. (1996) (71)
Increased daily sperm production in the breeding season of stallions is explained by an elevated population of spermatogonia. (1985) (70)
Reduced Leydig cell volume and function in adult rats exposed to 2,3,7,8-tetrachlorodibenzo-p-dioxin without a significant effect on spermatogenesis. (1992) (68)
Annual cycle of the Sertoli cell population in adult stallions. (1986) (68)
Bacteriology of preserved stallion semen and antibiotics in semen extenders. (1998) (68)
Review: Spermatogenesis in the bull. (2018) (67)
Effects of expression of human or bovine growth hormone genes on sperm production and male reproductive performance in four lines of transgenic mice. (1992) (66)
Increased germ cell degeneration during postprophase of meiosis is related to increased serum follicle-stimulating hormone concentrations and reduced daily sperm production in aged men. (1989) (65)
Factors affecting spermatogenesis in the stallion. (1997) (64)
Season but not age affects Sertoli cell number in adult stallions. (1991) (63)
Seasonal differences in equine spermatocytogenesis. (1991) (61)
Diseases and Management of Breeding Stallions (1991) (61)
Manganese acts centrally to activate reproductive hormone secretion and pubertal development in male rats. (2006) (61)
Gestational and lactational exposure of male mice to diethylstilbestrol causes long-term effects on the testis, sperm fertilizing ability in vitro, and testicular gene expression. (2002) (60)
Missing generations of spermatocytes and spermatids in seminiferous epithelium contribute to low efficiency of spermatogenesis in humans. (1992) (57)
Ethnic differences in testicular structure and spermatogenic potential may predispose testes of Asian men to a heightened sensitivity to steroidal contraceptives. (1998) (56)
2,3,7,8-Tetrachlorodibenzo-p-dioxin reduces the number, size, and organelle content of Leydig cells in adult rat testes. (1994) (55)
Techniques for evaluating selected reproductive disorders of stallions. (2000) (52)
Effect of heparin on capacitation/acrosome reaction of equine sperm. (1993) (51)
Temporal appearance of seasonal changes in numbers of Sertoli cells, Leydig cells, and germ cells in stallions. (1989) (49)
From a sperm's eye view - revisiting our perception of this intriguing cell. (2007) (48)
Characterization of the Testicular Abnormality in 5a-Reductase Deficiency (1986) (46)
Germ cell apoptosis in the testes of normal stallions. (2004) (46)
Germ cell degeneration during postprophase of meiosis and serum concentrations of gonadotropins in young adult and older adult men. (1984) (45)
The relationship of biopsy evaluations and testicular measurements to over-all daily sperm production in human testes. (1980) (45)
Seminiferous tubules and daily sperm production in older adult men with varied numbers of Leydig cells. (1987) (44)
Germ cell degeneration in normal and microwave‐irradiated rats: Potential sperm production rates at different developmental steps in spermatogenesis (1984) (44)
Use of a computerized system for evaluation of equine spermatozoal motility. (1991) (44)
Effect of age and season on the establishment of spermatogenesis in the horse. (1991) (43)
A new approach to study the architectural arrangement of spermatogenic stages revealed little evidence of a partial wave along the length of human seminiferous tubules. (1994) (41)
A comparative morphological study of human germ cells in vitro or in situ within seminiferous tubules. (1999) (41)
Quantification of human spermatogenesis: germ cell degeneration during spermatocytogenesis and meiosis in testes from younger and older adult men. (1987) (39)
Reproductive abnormalities in human insulin-like growth factor-binding protein-1 transgenic male mice. (2004) (38)
Evaluation of the human testis and its age-related dysfunction. (1989) (38)
A re-evaluation of daily sperm output of men. (1982) (38)
Anatomy and Physiology of the Male Reproductive System and Potential Targets of Toxicants (2010) (37)
Live human germ cells in the context of their spermatogenic stages. (2001) (36)
Partial wave in human seminiferous tubules appears to be a random occurrence. (1996) (34)
Enhanced daily sperm production in the remaining testis of aged rats following hemicastration. (1983) (31)
Effect of photoperiod on the size of the Leydig cell population and the rate of recruitment of Leydig cells in adult Syrian hamsters. (1987) (31)
The relationship of daily sperm production with number of Sertoli cells and testicular size in adult horses: role of primitive spermatogonia. (1994) (31)
Testicular composition, number of A spermatogonia, germ cell ratios, and number of spermatids in three different breeds of boars. (1996) (31)
The hidden effect of estrogenic/antiandrogenic methoxychlor on spermatogenesis. (2002) (29)
Staging equine seminiferous tubules by Nomarski optics in unstained histologic sections and in tubules mounted in toto to reveal the spermatogenic wave (1990) (28)
Effect of developmental age or time after transplantation on Sertoli cell number and testicular size in inbred Fischer rats. (1996) (28)
Increased germ cell degeneration and reduced germ cell:Sertoli cell ratio in stallions with low sperm production. (1997) (27)
Hyperprolactinemia inhibits development of Leydig cell tumors in aging Fischer rats. (1985) (25)
Effect of age on the composition of seminiferous tubular boundary tissue and on the volume of each component in humans. (1988) (25)
Effects of postparturient uterine lavage on uterine involution in the mare. (1989) (24)
Acute, whole-body microwave exposure and testicular function of rats. (1987) (24)
Gene expression in the spermatogenically inactive "dark" and maturing "light" testicular tissues of the prepubertal colt. (2004) (22)
Testicular function of rats following exposure to microwave radiation. (1983) (22)
Human chorionic gonadotropin protects Leydig cell function against 2,3,7,8-tetrachlorodibenzo-p-dioxin in adult rats: role of Leydig cell cytoplasmic volume. (1995) (21)
Effects of pulse-modulated microwave radiation and conventional heating on sperm production. (1987) (20)
Low daily sperm output per ml of testis as a diagnostic criteria for testicular degeneration in stallions (2001) (19)
Increased germ cell loss rates and poor semen quality in stallions with idiopathic testicular degeneration (2000) (18)
Isolation and staging of horse seminiferous tubules by transillumination. (1990) (17)
The effect of a 5 alpha-reductase inhibitor on androgen physiology in the immature male rat. (1989) (17)
The pesticide methoxychlor given orally during the perinatal/juvenile period, reduced the spermatogenic potential of males as adults by reducing their Sertoli cell number. (2002) (14)
Effect of hypophysectomy, sex of host, and/or number of transplanted testes on Sertoli cell number and testicular size of syngeneic testicular grafts in Fischer rats. (1996) (14)
Architectural arrangement of stages of the spermatogenic cycle within human seminiferous tubules is related to efficiency of spermatogenesis (1993) (13)
Partial purification and characterization of dynein adenosine triphosphatase from bovine sperm. (1987) (12)
Determination of daily sperm production in stallion testes by enumeration of germ cells in homogenates. (1997) (11)
Leydig cell cytoplasmic content is related to daily sperm production in men. (1990) (11)
Induction of the acrosome reaction in stallion spermatozoa: Effects of incubation temperature, incubation time, and ionophore concentration (2002) (10)
Characterization of the Testicular Abnormality in 5α-Reductase Deficiency (1987) (10)
Evaluation of Testicular Size and Function In 1-3-Year-Old Stallions (2001) (10)
Potential daily sperm production, Sertoli cell number, and seminiferous tubule characteristics in beef bulls fed conventional or gossypol-enriched diets. (1999) (8)
Characterization of the testicular abnormality in 5 alpha-reductase deficiency. (1986) (8)
Effects of altrenogest on behavior and reproductivee function of stallions (1997) (8)
Effect of age and dietary restriction on daily sperm production and number and transit time of epididymal spermatozoa in the mouse (1992) (6)
Bilateral infectious epididymitis in a stallion. (1992) (6)
Apoptosis as a mechanism of germ cell loss in mature stallions (2002) (6)
Leydig Cell Cytoplasmic Mass, Daily Sperm Production, and Serum Gonadotropin Levels in Aging Men a (1984) (4)
Dna microarray analysis of gene expression in testicular tissue of stallions (2002) (4)
Effect of 2,3,7,8 - tetrachlorodibenzo-p-dioxin (TCDD) on spermatogenesis and Leydig cell volume in adult rats (1992) (4)
The Effects of Growth Factor on Testicular Germ Cell Apoptosis in the Stallion (2007) (3)
Effect of photoperiod on the rate of 3H-thymidine incorporation of epididymal principal cells in adult Syrian hamsters. (1991) (3)
Heterotopic transplantation as a model to study the regulation of spermatogenesis; some histomorphological considerations about sperm decline in man. (1997) (3)
Apoptosis during the initiation of equine spermatogenesis (2002) (3)
RAPID DETERMINATION OF CELL NUMBERS IN THE HUMAN TESTIS BY PHASE‐CONTRAST CYTOMETRY: A NEW TECHNIQUE FOR ESTIMATING RATES OF SPERM PRODUCTION AND GERMINAL CELL ATTRITION AND FOR ASSESSING ABSOLUTE ABUNDANCE OF SERTOLI CELLS (1982) (1)
Characterization of sperm and androgen production by testes from control and ponazuril-treated stallions (2002) (1)
Further evidence of seasonal variation in number and function of sertoli cells in adult stallions (1985) (1)
Granulocyte-macrophage colony-stimulating factor reduces testicular germ cellapoptosis in vitro (2002) (0)
242 - Isolation and Characterization of Dynein ATPase from Human Sperm (1987) (0)
A ComparativeStudy of Daily SpermProductionand TesticularCompositionin Humansand Rats (1980) (0)
Artifactual disruption of sperm midpiece in extended stallion semen (2020) (0)

This paper list is powered by the following services:

What Schools Are Affiliated With Larry Johnson?

Larry Johnson is affiliated with the following schools:

University of Innsbruck
Texas A&M University
University of Bonn