Regina Castaneda MD (@Reginacastamd) header
Regina Castaneda MD (@Reginacastamd) profile picture

Regina Castaneda MD

@Reginacastamd

Postdoctoral Research Fellow @MayoClinic Women’s Health. MSc Candidate.

Joined July 2023
  • Tweets17
  • Following23
  • Followers33
2Media
Photo by Regina Castaneda MD (@Reginacastamd)Photo by Regina Castaneda MD (@Reginacastamd)
Regina Castaneda MD retweeted
MedPage Today (@medpagetoday) profile picture
MedPage Today@medpagetodayOct 28
Menopausal women taking hormone therapy in addition to a GLP-1 medication may see greater and sustained weight loss, a retrospective cohort study suggested. Read more of our #MenopauseSocietyMtg coverage: medpagetoday.com/meetingcove… @Reginacastamd
Menopausal Hormone Therapy May Boost GLP-1 Weight Loss

Menopausal Hormone Therapy May Boost GLP-1 Weight Loss

Effect was sustained with one agent, but didn't last with another

medpagetoday.com
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Thank you this great conversation! 🙌🏻
Endocrine Society (@TheEndoSociety) profile pictureEndocrine Society@TheEndoSociety8 Nov 2025
Tirzepatide and Menopause| Listen to Maria Daniela Hurtado Andrade, MD, PhD, and Regina Castaneda, MD, discuss whether medications like tirzepatide could be useful and safe for postmenopausal women in this @Endocrine_News Podcast episode: bit.ly/4nJgniv
Image from Endocrine Society (@TheEndoSociety)
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Regina Castaneda MD retweeted
Contemporary OB/GYN® (@ContempOBGYN) profile picture
Contemporary OB/GYN®
@ContempOBGYN29 Oct 2025
At #TMS2025, researchers reported menopausal status and hormone therapy use may affect #WeightLoss outcomes with tirzepatide. Women on hormone therapy or pre/perimenopausal lost nearly 20% body weight vs. 15% in untreated postmenopausal peers. Read more: contemporaryobgyn.net/view/r…
Regina Castaneda, MD, on how hormone therapy may influence weight loss outcomes with tirzepatide |...

Regina Castaneda, MD, on how hormone therapy may influence weight loss outcomes with tirzepatide |...

Study finds women on hormone therapy lost more weight with tirzepatide, though researchers stress association—not causation—needs confirmation.

contemporaryobgyn.net
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So excited to see my friend and co-fellow embrace this journey❤️
Jana Karam (@JanaJKaram) profile pictureJana Karam@JanaJKaram30 Sep 2025
Hi #MedTwitter I am Jana Karam, a medical graduate from Lebanon 🇱🇧 and a postdoctoral research fellow @MayoClinic @WHMayoClinic I am very excited to be applying to #OBGYN #Match2026 Happy to connect! Good luck everyone☺️
Image from Jana Karam (@JanaJKaram)
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When evaluating the role of hormone therapy in post menopausal women, understanding the physiological role of estrogen is fundamental. #biorenderforgrants
Image from Regina Castaneda MD (@Reginacastamd)
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Regina Castaneda MD retweeted
Contemporary OB/GYN® (@ContempOBGYN) profile picture
Contemporary OB/GYN®
@ContempOBGYN22 Jul 2025
A Mayo Clinic study reveals combining tirzepatide with hormone therapy boosts weight loss results in postmenopausal women—supporting a more personalized approach to obesity care. #ENDO2025 #Menopause Read more: contemporaryobgyn.net/view/t…
Image from Contemporary OB/GYN® (@ContempOBGYN)
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In a matched cohort of postmenopausal women, concomitant use of menopause hormone therapy and tirzepatide was associated with greater weight loss. Thanks @EndoMedia for this great press release that showcases our work! #ENDO2025 @TheEndoSociety bit.ly/463gUGN
Combination of obesity medication tirzepatide and menopause hormone therapy fuels weight loss

Combination of obesity medication tirzepatide and menopause hormone therapy fuels weight loss

Using tirzepatide and menopause hormone therapy at the same time leads to increased weight loss in postmenopausal women with overweight or obesity compared to use of tirzepatide treatment alone,...

endocrine.org
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Throwback to my first glimpse into clinical rotations in the U.S.⚕️👩🏻‍⚕️🏥
Image from Regina Castaneda MD (@Reginacastamd)
Image from Regina Castaneda MD (@Reginacastamd)
Image from Regina Castaneda MD (@Reginacastamd)
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