ANNIE A. YESSAIAN, M.D.

TARZANA, CA

Research Active
Obstetrics & Gynecology - Gynecologic Oncology NPI registered 21+ years 9 publications 2004 – 2019 NPI: 1457356578
Uterine NeoplasmsOvarian NeoplasmsPrognosisUterine Cervical NeoplasmsNeoplasm StagingImmunohistochemistryEndometrial NeoplasmsHysterectomyEndoplasmic Reticulum StressHeat-Shock ProteinsCarcinoma, EndometrioidHomer Scaffolding ProteinsEndometrial HyperplasiaEndoplasmic Reticulum Chaperone BiPProgestins

Practice Location

18133 VENTURA BLVD STE 402
TARZANA, CA 91356-3645

Phone: (818) 342-6011

What does ANNIE YESSAIAN research?

Dr. Yessaiian studies gynecologic malignancies, which are cancers that affect women's reproductive organs, such as ovarian and cervical cancer. Her research includes how women with these cancers use non-prescription cannabis to alleviate symptoms like pain and anxiety. She also investigates specific biological markers that can indicate how patients might respond to treatments or predict their survival. This includes examining proteins that are found at different levels in cancerous tissues that could help doctors decide on the best approach for each patient.

Key findings

  • 62% of women with gynecologic cancers in one study showed interest in using non-prescription cannabis for symptom management, with 27 reporting reduced use of prescription painkillers.
  • 67% of low-grade endometrioid adenocarcinoma cases studied had high levels of HOMER2, associated with better survival outcomes compared to only 30% of aggressive tumors.
  • Patients with elevated levels of GRP78 in complex atypical hyperplasia samples had a higher likelihood of being at risk for hidden cancer, aiding in early identification.
  • In a study of women with ovarian cancer post-chemotherapy, those with high levels of fibroblast activated protein (FAP) were 15 times more likely to face cancer recurrence.
  • Tumors with more fibrosis after chemotherapy showed longer periods without cancer recurrence (20 months versus 12 months) and improved overall survival (51 months versus 32 months).

Frequently asked questions

Does Dr. Yessaiian study the use of cannabis in cancer treatment?
Yes, she explores how women with gynecologic cancers use non-prescription cannabis to manage symptoms like pain and anxiety.
What conditions does Dr. Yessaiian focus on?
She primarily focuses on gynecologic cancers, including ovarian and cervical cancer, and related conditions like complex atypical hyperplasia.
Has Dr. Yessaiian researched any specific treatments?
Yes, she has studied the effectiveness of chemotherapy in treating ovarian cancer and how certain biological markers can influence treatment decisions.
Is Dr. Yessaiian's work relevant for women with low-grade endometrial cancer?
Absolutely, her findings about the HOMER2 protein may help predict outcomes and improve treatment plans for women with this type of cancer.
What impact does Dr. Yessaiian's research have on patient care?
Her research enhances the understanding of gynecologic cancers, allowing for better prognostic information and treatment strategies for patients.

Publications in plain English

Non-prescription cannabis use for symptom management amongst women with gynecologic malignancies.

2019

Gynecologic oncology reports

Blake EA, Ross M, Ihenacho U, Figueroa L, Silverstein E +8 more

Plain English
This study explored how women with gynecologic cancers use non-prescription cannabis products to manage their symptoms, like pain and anxiety. It found that 62% of the 225 surveyed women expressed interest in cannabis, with 27 of those using it reporting a reduction in their use of prescription painkillers. This research highlights the growing interest in cannabis for symptom relief and suggests that doctors should be aware of this trend among their patients. Who this helps: Women with gynecologic cancers and their healthcare providers.

PubMed

Overexpression of HOMER2 predicts better outcome in low-grade endometrioid endometrial adenocarcinoma.

2018

Pathology

Mhawech-Fauceglia P, Walia S, Yessaian A, Machida H, Matsuo K +1 more

Plain English
This study looked at a protein called HOMER2 in patients with a type of uterine cancer known as low-grade endometrioid adenocarcinoma. The researchers found that 67% of these lower-grade tumors had high levels of HOMER2, compared to only 30% of more aggressive tumors. This higher HOMER2 expression was linked to better survival outcomes, suggesting that it might be a useful marker for predicting how well patients will do after diagnosis. Who this helps: This benefits patients with low-grade endometrial cancer by potentially offering better prognostic information.

PubMed

Microfocus of Anaplastic Carcinoma Arising in Mural Nodule of Ovarian Mucinous Borderline Tumor With Very Rapid and Fatal Outcome.

2016

International journal of gynecological pathology : official journal of the International Society of Gynecological Pathologists

Mhawech-Fauceglia P, Ramzan A, Walia S, Pham HQ, Yessaian A

Plain English
This study examined a case of a 36-year-old woman with an ovarian mass that was initially thought to be a borderline tumor. After surgery, it was discovered that the tumor contained a small area of very aggressive cancer, which led to the cancer spreading to her lymph nodes. Despite starting chemotherapy, the woman faced severe complications and passed away less than a week later, highlighting the urgency and seriousness of her condition. Who this helps: This information is crucial for doctors and researchers working on ovarian cancer treatments and for patients facing similar diagnoses.

PubMed

Endoplasmic reticulum stress in complex atypical hyperplasia as a possible predictor of occult carcinoma and progestin response.

2016

Gynecologic oncology

Tierney KE, Ji L, Dralla SS, Yoo E, Yessaian A +5 more

Plain English
This study looked at a protein called GRP78 in endometrial samples from women with complex atypical hyperplasia (CAH), a condition that can lead to cancer. They found that 48% of the patients had moderate to strong levels of GRP78, and those with hidden cancer (occult endometrial cancer) showed higher levels of this protein compared to those without cancer. Recognizing GRP78 levels in CAH can help doctors identify patients at greater risk for developing cancer and those who may not respond well to certain treatments. Who this helps: This research benefits women with complex atypical hyperplasia and their healthcare providers.

PubMed

Clinical Implications of Marker Expression of Carcinoma-Associated Fibroblasts (CAFs) in Patients with Epithelial Ovarian Carcinoma After Treatment with Neoadjuvant Chemotherapy.

2014

Cancer microenvironment : official journal of the International Cancer Microenvironment Society

Mhawech-Fauceglia P, Wang D, Samrao D, Kim G, Lawrenson K +4 more

Plain English
This study looked at two specific markers in patients with epithelial ovarian cancer (EOC) after they underwent chemotherapy: fibroblast activated protein (FAP) and alpha-smooth muscle actin (αSMA). It found that patients with high FAP levels in their tissue were 15 times more likely to experience cancer recurrence, and those with certain combinations of FAP marker levels had a higher death rate and recurrence rate compared to others. Understanding these markers can help in predicting how aggressive the cancer is and points to potential new treatment strategies. Who this helps: This benefits patients with ovarian cancer and their doctors by improving treatment decisions.

PubMed

Histologic parameters predictive of disease outcome in women with advanced stage ovarian carcinoma treated with neoadjuvant chemotherapy.

2012

Translational oncology

Samrao D, Wang D, Ough F, Lin YG, Liu S +5 more

Plain English
This study looked at how changes in ovarian cancer tumors after initial chemotherapy affect patient outcomes. Researchers found that tumors with more fibrosis (a certain type of tissue change) were linked to longer periods without cancer returning, averaging 20 months compared to 12 months for those with less fibrosis, and longer overall survival, with an average of 51 months versus 32 months. Understanding these patterns can help doctors make better treatment decisions for women with advanced ovarian cancer. Who this helps: This helps patients with advanced ovarian cancer and their doctors.

PubMed

Phase II study of gemcitabine and docetaxel in recurrent platinum resistant ovarian cancer.

2012

Cancer investigation

Garcia AA, Yessaian A, Pham H, Facio G, Muderspach L +1 more

Plain English
Researchers studied the effects of two drugs, gemcitabine and docetaxel, on women with recurrent ovarian cancer that had stopped responding to platinum-based treatments. Out of 20 patients, 25% showed improvement in their condition, but many experienced severe side effects related to blood cell production. This is important because, although the treatment had promising results, the side effects led to the study being stopped early, highlighting the need for careful management of these patients. Who this helps: This research helps patients with recurrent ovarian cancer and their doctors by exploring new treatment options.

PubMed

Population characteristics in cervical cancer trials: search for external validity.

2005

American journal of obstetrics and gynecology

Yessaian A, Mendivil AA, Brewster WR

Plain English
This study looked at whether the characteristics of patients with cervical cancer who participated in clinical trials represent the broader population of cervical cancer patients in the United States. Researchers found that the age and ethnic backgrounds of patients in these trials were similar to those in the general population, except that younger patients (under 50) with a specific stage of the disease were more likely to be included in the trials. This matters because it helps ensure that the results from these trials can be applied to a wider group of patients, making treatments more relevant and effective for everyone. Who this helps: This helps patients, especially black and Hispanic women with cervical cancer.

PubMed

Radical hysterectomy followed by tailored postoperative therapy in the treatment of stage IB2 cervical cancer: feasibility and indications for adjuvant therapy.

2004

Gynecologic oncology

Yessaian A, Magistris A, Burger RA, Monk BJ

Plain English
This study focused on women with stage IB2 cervical cancer who underwent a radical hysterectomy, which involves removing the uterus and surrounding tissues. Out of 58 women with this diagnosis, 30 (52%) should have received additional radiation treatment based on guidelines, but only 35 ended up getting radiation, and one received combined chemotherapy and radiation. The findings showed that despite not receiving the recommended treatments, many women (62%) survived for at least five years, suggesting that the surgery alone can be effective. Who this helps: This research benefits patients with stage IB2 cervical cancer and their healthcare providers.

PubMed

Frequent Co-Authors

Paulette Mhawech-Fauceglia Lynda Roman Koji Matsuo Saloni Walia Kate Lawrenson Huyen Q Pham Yvonne G Lin Dan Wang Damanzoopinder Samrao Song Liu

Physician data sourced from the NPPES NPI Registry . Publication data from PubMed . Plain-English summaries generated by AI. Not medical advice.