Alexis J. Bick

Cape Town, WC, South Africa

Last Updated: 09/26/2026

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Found 12 publications

Injectable contraceptives differentially affect the hypothalamic-pituitary-gonadal axis and amenorrhea incidence†.

Injectable contraceptives differentially affect the hypothalamic-pituitary-gonadal axis and amenorrhea incidence†.

Journal: Biology of reproduction

Published: July 31, 2025

Injectable contraceptives differentially affect the hypothalamic-pituitary-gonadal axis and amenorrhea incidence†.

Injectable contraceptives differentially affect the hypothalamic-pituitary-gonadal axis and amenorrhea incidence†.

Journal: Biology of reproduction

Published: July 31, 2025

Serum norethisterone (NET) levels in NET-enanthate (NET-EN) injectable contraception users substantially interfere with testosterone immunoassay measurements and confound interpretation of biological outcomes.

Serum norethisterone (NET) levels in NET-enanthate (NET-EN) injectable contraception users substantially interfere with testosterone immunoassay measurements and confound interpretation of biological outcomes.

Journal: Contraception and reproductive medicine

Published: December 21, 2024

Injectable Contraceptives Differentially Affect Select CD4+ HIV-1 Target Cells in the Genital Tract but Not Systemically: Implications for HIV-1 Acquisition.

Injectable Contraceptives Differentially Affect Select CD4+ HIV-1 Target Cells in the Genital Tract but Not Systemically: Implications for HIV-1 Acquisition.

Journal: American journal of reproductive immunology (New York, N.Y. : 1989)

Published: August 16, 2024

Misreporting contraceptive use and the association of peak study progestin levels with weight and BMI among women randomized to the progestin-only injectable contraceptives DMPA-IM and NET-EN.

Misreporting contraceptive use and the association of peak study progestin levels with weight and BMI among women randomized to the progestin-only injectable contraceptives DMPA-IM and NET-EN.

Journal: PloS one

Published: July 21, 2023

The injectable contraceptives depot medroxyprogesterone acetate and norethisterone enanthate substantially and differentially decrease testosterone and sex hormone binding globulin levels: A secondary study from the WHICH randomized clinical trial.

The injectable contraceptives depot medroxyprogesterone acetate and norethisterone enanthate substantially and differentially decrease testosterone and sex hormone binding globulin levels: A secondary study from the WHICH randomized clinical trial.

Journal: PloS one

Published: July 05, 2023

Increased HIV-1 infection in PBMCs treated in vitro with menstrual cycle phase hormones or medroxyprogesterone acetate likely occurs via different mechanisms.

Increased HIV-1 infection in PBMCs treated in vitro with menstrual cycle phase hormones or medroxyprogesterone acetate likely occurs via different mechanisms.

Journal: American journal of reproductive immunology (New York, N.Y. : 1989)

Published: April 26, 2022

Variability and quantification of serum medroxyprogesterone acetate levels.

Variability and quantification of serum medroxyprogesterone acetate levels.

Journal: Steroids

Published: March 30, 2022

Pharmacokinetics, metabolism and serum concentrations of progestins used in contraception.

Pharmacokinetics, metabolism and serum concentrations of progestins used in contraception.

Journal: Pharmacology & therapeutics

Published: December 02, 2019

Reciprocal Modulation of Antiretroviral Drug and Steroid Receptor Function In Vitro.

Reciprocal Modulation of Antiretroviral Drug and Steroid Receptor Function In Vitro.

Journal: Antimicrobial agents and chemotherapy

Published: September 18, 2019

HIV-1 Latency Is Maintained by the Estrogen Receptor.

HIV-1 Latency Is Maintained by the Estrogen Receptor.

Journal: Trends in microbiology

Published: September 14, 2018

Medroxyprogesterone acetate, unlike norethisterone, increases HIV-1 replication in human peripheral blood mononuclear cells and an indicator cell line, via mechanisms involving the glucocorticoid receptor, increased CD4/CD8 ratios and CCR5 levels.

Medroxyprogesterone acetate, unlike norethisterone, increases HIV-1 replication in human peripheral blood mononuclear cells and an indicator cell line, via mechanisms involving the glucocorticoid receptor, increased CD4/CD8 ratios and CCR5 levels.

Journal: PloS one

Published: December 11, 2017

Showing 1-12 of 12

Last Updated: 09/26/2026