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Hafezi M, Arabipoor A, Ghaffari F, Vesali S, Zareei M, Hessari ZH. Adding L-carnitine to antagonist ovarian stimulation doesn't improve the outcomes of IVF/ ICSI cycle in patients with polycystic ovarian syndrome: a double-blind randomized clinical trial. J Ovarian Res 2024; 17:9. [PMID: 38191449 PMCID: PMC10775512 DOI: 10.1186/s13048-023-01319-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/02/2023] [Indexed: 01/10/2024] Open
Abstract
OBJECTIVE To investigate the effect of L-carnitine supplementation during the controlled ovarian stimulation (COS) cycle with antagonist protocol in patients with polycystic ovary syndrome (PCOS) diagnosis undergoing IVF/ICSI treatment. METHODS AND MATERIALS This was a double-blind clinical trial study including 110 patients with PCOS attended to Royan Institute between March 2020 and February 2023. At the beginning of the COS cycle, the eligible patients were allocated into two groups randomly according to the coding list of the drugs prepared by the statistical consultant. In the experimental group, patients received 3 tablets daily (L-carnitine 1000 mg) from the second day of menstruation of the previous cycle until the puncture day in the cases of freeze-all embryos (6 weeks) or until the day of the pregnancy test (8 weeks) in fresh embryo transfer cycle. In the control group, patients received 3 placebo tablets for the same period of time. Weight assessment and fasting blood sugar and insulin tests, as well as serum lipid profile were also measured at the baseline and ovum pick-up day. The results of the COS cycle as well as the implantation and pregnancy rates were compared between groups. RESULTS Finally, 45 cases in L-carnitine group versus 47 cases in the placebo group were completed study per protocol. Data analysis showed that the two groups were homogeneous in terms of demographic characteristics and baseline laboratory tests and severity of PCOS. There is no statistically significant difference in terms of the oocyte recovery ratio and oocyte maturity rate, and the number and quality of embryos, as well as the rates of the fertilization, chemical and clinical pregnancy between groups. However, the means of weight (P < 0.001) and serum levels of fasting blood sugar (P = 0.021), fasting insulin (P = 0.004), triglyceride (P < 0.001) and cholesterol (P < 0.001), LDL (P < 0.001) have significantly decreased in women after consuming L-carnitine supplementation. CONCLUSION The oral intake of L-carnitine during COS in PCOS women for 6 weeks had no effect on COS and pregnancy outcomes. However, taking this supplement for 6 weeks has been associated with weight loss and improved lipid profile and serum glucose. TRIAL REGISTRATION The study was registered in the Clinicaltrials.gov site on December 17, 2020 (NCT04672720).
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Affiliation(s)
- Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, P.O. Box: 16656-59911, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, Tehran, Iran.
| | - Arezoo Arabipoor
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, P.O. Box: 16656-59911, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, Tehran, Iran
| | - Firouzeh Ghaffari
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, P.O. Box: 16656-59911, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, Tehran, Iran
| | - Samira Vesali
- Department of Basic and Population Based Studies in NCD, Reproductive Epidemiology Research Center, Royan Institute, ACECR, Tehran, Iran
| | - Maryam Zareei
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Zahra Hajinaghibali Hessari
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, P.O. Box: 16656-59911, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, Tehran, Iran
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Shirvanizadeh F, Eidi A, Hafezi M, Eftekhari-Yazdi P. Abdominal Obesity May Play a Significant Role in inflammation Exacerbation in Polycystic Ovary Syndrome Patients. JBRA Assist Reprod 2023. [PMID: 37962969 DOI: 10.5935/1518-0557.20230065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023] Open
Abstract
OBJECTIVE Polycystic ovary syndrome (PCOS) is an endocrine disorder that seems to be pro-inflammatory at many levels, abdominal obesity (AO) is a prevalent pro-inflammatory phenotype in PCOS patients, and it seems to contribute to the initiation or worsening of inflammation in PCOS patients. In this study, we investigated the role of the AO phenotype in the occurrence of other obesity indicators (neck and arm) and augmentation of inflammation in the follicular fluid (FF) of PCOS patients. METHODS 40 patients under the age of 35 were divided into four groups: PCOS with AO, PCOS without AO, non-PCOS with AO, and non-PCOS without AO. The FF samples were collected from each patient. Clinical and anthropometric characteristics of the participants, as well as tumor necrosis factor-α (TNF-α) concentration in the FF samples, were quantitatively assessed using enzyme-linked immunosorbent assays. The number of retrieved cumulus-oocyte complexes (COC) and their quality were scored. RESULTS The PCOS+AO+ group had significantly increased neck circumference, compared to the other groups (p<0.001). The concentration of TNF-α was significantly higher in the PCOS+AO+ group than in the other groups (p<0.001). There were no significant differences in the number of retrieved COC per patient and the quality of oocytes between the groups (p>0.05). CONCLUSIONS Given the significant role of inflammation in the development of PCOS, managing AO in PCOS patients may aid in reducing inflammation and could potentially help in the design of customized treatment approaches.
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Affiliation(s)
- Fatemeh Shirvanizadeh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Akram Eidi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Poopak Eftekhari-Yazdi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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Shalchian Z, Taheri S, Hafezi M, Madani T, Nasiri N, Eftekhari Yazdi P. Embryo Condition Media Collected from Polycystic Ovary Syndrome Patients with Abdominal Obesity Can Increase The Decidualization Potential of Healthy Endometrial Stromal Cells. Int J Fertil Steril 2023; 18:67-75. [PMID: 38041462 PMCID: PMC10692747 DOI: 10.22074/ijfs.2023.2006784.1491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 09/17/2023] [Accepted: 09/23/2023] [Indexed: 12/03/2023]
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is a common endocrinological disorder associated with abdominal obesity (AO) and some reproductive complications including low pregnancy rate. Embryo-endometrium cross-talk has a key role in successful embryo implantation and subsequent normal pregnancy rate. The primary objective of this study is to evaluate the decidualization potential of endometrial stromal cells (ESCs) using the embryo condition media (ECM) collected from PCOS patients with AO, compared to ECM of those patients without AO. MATERIALS AND METHODS In this experimental study, we measured the capacity of ECM collected from PCOS patients with or without AO for decidualization induction in healthy ESCs after coculture. A total number of 53 embryos from 40 couples belonging to PCOS with AO, PCOS without AO, nonPCOS with AO, and nonPCOS without AO patients, were included in our study. The embryosof four groups were single-cultured up to the blastocyst stage. Their ECM (45λ/well) were pooled and added to healthy ESCs monolayer culture media to investigate their effects on decidualization potential via gene (PRL, IGFBP1, IL1-β, HOXA10, IL-6 and TNF-α) and protein (PRL, IGFBP1, IL1-β) expression analysis and ESCs migration assay. RESULTS The morphological analysis, migration assay (P≤0.0321), protein (P≤0.0139) and gene expression analysis showed PCOS with AO accounted for the highest gene (PRL, IGFBP1, IL1-β, HOXA10, IL-6, TNF-α) and protein markers (PRL, IGFBP1, IL1-β) (P≤0.05). NonPCOS individuals without AO had the lowest level of both gene and protein decidualization markers (P≤0.05). CONCLUSION Considering decidualization as an inflammatory process, a higher level of decidualization markers was associated with a higher inflammatory status created by AO and PCOS, separately. Inflammation may disrupt the process of inflammatory to anti-inflammatory phase required for prevention of pregnancy loss, this could explain the high rate of abortion in these cases.
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Affiliation(s)
- Zohreh Shalchian
- Faculty of Development of Biology, University of Science and Culture, Tehran, Iran
| | - Saba Taheri
- Faculty of Development of Biology, University of Science and Culture, Tehran, Iran
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Tahereh Madani
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Nahid Nasiri
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
- Department of Photo Healing and Regeneration, Medical Laser Research Center, Yara Institute Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Poopak Eftekhari Yazdi
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
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Hafezi M, Chekini Z, Ghaffari F, Mashayekhi M, Zameni N. How Could One Sperm and One Oocyte Proceed To Molar Pregnancy? Prevalence of Molar Pregnancy during ICSI Procedure in Over 25,000 Fresh Embryo Transfers: A Retrospective Cross-Sectional Study. Int J Fertil Steril 2023; 17:47-51. [PMID: 36617202 PMCID: PMC9807885 DOI: 10.22074/ijfs.2022.529077.1126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Indexed: 01/09/2023]
Abstract
BACKGROUND Gestational trophoblastic disease (GTD) is a heterogeneous group of diseases characterized by excessive proliferating trophoblastic tissue. The prevalence of GTD has a varied geographical distribution. However, its frequency following intracytoplasmic sperm injection (ICSI) cycles has not yet been reported. This study aimed to estimate GTD frequency and prevalence after ICSI cycles. MATERIALS AND METHODS This retrospective cross-sectional study included all patients diagnosed with GTD subsequent to ICSI and segmental embryo transfer procedure during 2011-2019 at Royan Institute. GTD diagnosis was established for patients who met all three criteria: beta-human chorionic gonadotropin (β-hCG) levels greater than 100,000 mIU/mL, vesicular ultrasonographic pattern, and presence of pathologic features of hydatidiform mole. Although we assessed the GTD frequency in all ICSI cycles, GTD cases were only observed following fresh embryo transfer ICSI procedures. RESULTS We evaluated 25,667 fresh embryo transfer ICSI procedures out of 41,540 ICSI cycles. This study identified a total of 10 GTDs confirmed by all criteria which were mentioned previously. Of these 10 GTDs, nine cases had hydatidiform mole, and one had gestational trophoblastic neoplasia. The frequency of GTD was calculated 10 cases in 41,540 (0.240 per 1000) ICSI procedures and 10 in 25,667 (0.389 per 1000) fresh embryo transfers following ICSI cycles. Also, we detected 10 GTD cases in 8,196 (1.220 per 1000) clinical pregnancies. CONCLUSION We discuss that the possibility of GTD after ICSI procedure is not as low as expected. Thus, the previous theses are insufficient to explain all aspects of molar pregnancy, and more research is required.
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Affiliation(s)
- Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive
Biomedicine, ACECR, Tehran, Iran,P.O.Box: 16635-148Department of Endocrinology and Female InfertilityReproductive Biomedicine Research CenterRoyan Institute for Reproductive BiomedicineACECRTehranIran
| | - Zahra Chekini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive
Biomedicine, ACECR, Tehran, Iran
| | - Firouzeh Ghaffari
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive
Biomedicine, ACECR, Tehran, Iran
| | - Mehri Mashayekhi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive
Biomedicine, ACECR, Tehran, Iran
| | - Nadia Zameni
- School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Hafezi M, Zameni N, Nemati Aghamaleki SZ, Omani-Samani R, Vesali S. Awareness and attitude toward oocyte cryopreservation for non-medical reasons: a study on women candidates for social egg freezing. J Psychosom Obstet Gynaecol 2022; 43:532-540. [PMID: 35998044 DOI: 10.1080/0167482x.2022.2090332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/15/2022] Open
Abstract
PURPOSE The present study was to investigate awareness and attitudes toward female fertility and aging, desire for a child and motherhood, and oocyte freezing for non-medical reasons among women candidates for Social Egg Freezing (SEF). MATERIALS AND METHODS This was a cross-sectional study on all 216 women who sought oocyte cryopreservation for nonmedical reasons at Royan Institute. A 24-item self-administered questionnaire measured knowledge and attitudes to SEF. Responses were as yes/no or a 4-point Likert scale. RESULTS Only 40% of participants accurately indicated that having a sexual partner does not help to preserve their fertility. A quarter of women correctly recalled chance of pregnancy with unprotected intercourse during a period of a year, for women 20 to 40 years old. Only one-third of respondents accurately identified the age-related fertility decline at 35-39 years. Only 6.9% correctly mentioned the low chance of pregnancy after egg freezing at 35 years old. Almost a third of women knew that the age range of 31-35 years is the right age to freeze an egg with the highest chance of pregnancy. Aging and health of offspring were most influential in women's decisions on SEF. CONCLUSION In conclusion, there was significant gaps in knowledge about age-related fertility decline, and egg cryopreservation conditions and its complications. It is crucial to impart to these women a better knowledge about fertility and a realistic picture about SEF, especially on the number of high-quality retrieved mature oocytes and live birth rates depend on women's age.
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Affiliation(s)
- Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Nadia Zameni
- School of Medicine, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Seyyedeh Zahra Nemati Aghamaleki
- Department of Medical Ethics and Law, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Reza Omani-Samani
- Department of Medical Ethics and Law, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Samira Vesali
- Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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Vesali S, Zameni N, Moghinasr R, Sazvar S, Agamaleki ZN, Hafezi M. Sexual Quality of life, Depression, and Anxiety Symptoms in Women Candidates for Social Egg Freezing. Sex Disabil 2022. [DOI: 10.1007/s11195-022-09761-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Hosseini E, Aghajanpour S, Zameni N, Hafezi M. Isthmocele—a neglected cause of secondary infertility and implantation failure: A case report. Clin Case Rep 2022; 10:e05853. [PMID: 35600035 PMCID: PMC9107921 DOI: 10.1002/ccr3.5853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/18/2022] [Accepted: 04/27/2022] [Indexed: 12/02/2022] Open
Abstract
Isthmocele is myometrial scar tissue that develops after cesarean section delivery. In this case, other more prevalent pathologies delayed isthmocele diagnosis as the main cause of the patient's symptoms. Considering isthmocele is a fluid‐filled pouch‐like defect associated with infection caused by stagnant menstrual blood, its immunological aspects lead to implantation failure.
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Affiliation(s)
- Elham Hosseini
- Department of Obstetrics and Gynecology Mousavi Hospital School of Medicine Zanjan University of Medical Sciences Zanjan Iran
| | - Samaneh Aghajanpour
- Department of Endocrinology and Female Infertility Reproductive Biomedicine Research Center Royan Institute for Reproductive Biomedicine ACECR Tehran Iran
| | - Nadia Zameni
- School of Medicine Shahid Beheshti University of Medical Sciences Tehran Iran
| | - Maryam Hafezi
- Department of Endocrinology and Female Infertility Reproductive Biomedicine Research Center Royan Institute for Reproductive Biomedicine ACECR Tehran Iran
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Sefidabi R, Moini A, Alizadeh A, Alipour S, Omranipoor R, Hafezi M, Shahhoseini M, Izadi A, Vesali S. 144P The differences in fatty acid profiles and stearoyl-CoA desaturase (SCD1) mRNA level in adipose tissue surrounding breast tumor of Iranian women with breast cancer and benign breast disease. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.03.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Hajitarkhani S, Moini A, Hafezi M, Shahhoseini M, Alizadeh A. Differences in gene expression of enzymes involved in branched-chain amino acid metabolism of abdominal subcutaneous adipose tissue between pregnant women with and without PCOS. Taiwan J Obstet Gynecol 2021; 60:290-294. [PMID: 33678329 DOI: 10.1016/j.tjog.2020.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2020] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE Polycystic ovary syndrome (PCOS) appears to be a common endocrine disorder of women in reproductive age. Adipose tissue (AT) is known as an active tissue in the metabolism of branched-chain amino acids (BCAA; Valine, Leucine, and Isoleucine) that they have associated with blood BCAA levels is a prognostic factor for insulin-resistant. Although the crucial roles of AT in women suffering from PCOS was reported, little information exists on the BCAA metabolism in AT of PCOS women. The aim was to assess and compare the expression of BCAAs metabolism pathway genes in abdominal subcutaneous AT of pregnant women with PCOS and non-PCOS pregnant women. MATERIALS AND METHODS AT samples from 13 PCOS were compared with samples collected from 6 non-PCOS women, all of whom underwent caesarean. Quantitative real-time PCR technique was used for gene expression of branched chain aminotransferase 2 mitochondrial (BCAT2), branched chain ketoacid dehydrogenase E1-alpha (BCKDHA), branched chain ketoacid dehydrogenase E1-Beta (BCKDHB), dihydrolipoamide branched chain transacylase E2 (DBT), dihydrolipoamide dehydrogenase E3 (DLD), branched chain ketoacid dehydrogenase kinase (BCKDK), Data were analyzed using t-test or U-test. RESULTS No significant differences were found in age and body mass index (BMI) between non-PCOS and PCOS women. The mRNA level of BCAT2 and DLD in PCOS group was not significantly different from non-PCOS group whereas mRNA level of BCKDHB and DBT was significantly increased in PCOS group (P < 0.0001). In contrast, mRNA level of BCKDHA (P = 0.0001) and BCKDK (P < 0.0001) was significantly decreased in PCOS group. CONCLUSION The alterations in gene expressions involved BCAA metabolism in age-matched and BMI- matched non-PCOS and PCOS pregnant women at delivery day was shown which warrants further studies regards functional activity. More attention should be given to AT of PCOS mothers that was previously ignored.
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Affiliation(s)
- Shekoufeh Hajitarkhani
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran; Department of Cellular and Molecular Biology, Faculty of Basic Sciences and Advanced Technologies in Biology, University Science and Culture, Tehran, Iran
| | - Ashraf Moini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran; Breast Disease Research Center (BDRC), Tehran University of Medical Sciences, Tehran, Iran; Department of Gynecology and Obstetrics, Arash Women's Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Maryam Shahhoseini
- Department of Genetics, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran; Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran; Department of Cell and Molecular Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - AliReza Alizadeh
- Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.
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Hafezi M, Chekini Z, Zamanian M. Which One Is More Prominent in Recurrent Hydatidiform Mole, Ovum or Sperm? Int J Fertil Steril 2020; 14:154-158. [PMID: 32681629 PMCID: PMC7382686 DOI: 10.22074/ijfs.2020.6017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/15/2019] [Accepted: 01/14/2020] [Indexed: 11/04/2022]
Abstract
Recurrent hydatidiform mole is defined as episodes of two molar pregnancies in a female. Often, complete moles only derive androgenic nuclear genome. We described two cases with repeated molar pregnancies attempted to prevent future episodes by performing intracytoplasmic sperm injection (ICSI) and preimplantation genetic diagnosis (PGD) to assess genetic disorders. The first patient had previously six complete molar pregnancies and advised to carry out ICSI with ovum donation to achieve a normal pregnancy. The second case had previously five molar pregnancies and no XY embryos from the ICSI/PGD process. We had to (at the insistence of the patient) transfer XX embryos in this patient which resulted in a complete hydatidiform mole (CHM). Hence, available data based on our patients and previous studies demonstrated that oocyte might play a critical role in the pathophysiology of recurrent hydatidiform mole, while it has not been often considered.
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Affiliation(s)
- Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran. Electronic Address:
| | - Zahra Chekini
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mohammadreza Zamanian
- Department of Genetics, Reproductive Biomedicine Research Center , Royan Institute for Reproductive Biomedicine, ACECR, Tehran , Iran
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Saha S, Gruenspan G, Kabir M, Montazeri N, Hafezi M, Meisami T, Yadollahi A. Investigation of the relationship between snoring sounds features and response to the mandibular advancement devices. Sleep Med 2019. [DOI: 10.1016/j.sleep.2019.11.925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ramezanali F, Arabipoor A, Hafezi M, Salman-Yazdi R, Zolfaghari Z, Asharfi M. Serum estradiol level on trigger day impacts clinical pregnancy rate in modified natural frozen embryo transfer cycles. Int J Gynaecol Obstet 2019; 145:312-318. [PMID: 30916782 DOI: 10.1002/ijgo.12806] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 09/15/2018] [Accepted: 03/19/2019] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To examine the predictive value of serum estradiol and progesterone on the day of human chorionic gonadotropin (hCG) administration and embryo transfer for clinical pregnancy rate in modified natural-cycle frozen embryo transfer (NC-FET). METHODS In a longitudinal prospective study, all eligible women who underwent NC-FET cycles with hCG triggering in Royan Institute, Tehran, Iran, from June 1, 2015, to December 31, 2016, were evaluated. Serum estradiol and progesterone levels were measured at menstrual cycle initiation, on day of trigger with hCG, on day of embryo transfer, and in pregnant women every 7 days until the observation of a gestational sac with embryonic heartbeat. RESULTS In total, 101 modified natural FET cycles were assessed, and the clinical pregnancy and live birth rates achieved were 34 (33.6%) and 32 (31.6%), respectively. The changes in estradiol level during early pregnancy showed an increase by an average of 200 pg/mL per week. Multivariable logistic regression analysis showed that only the estradiol level on the hCG day was a significant predictive variable for clinical pregnancy following NC-FET (P=0.04). CONCLUSION Estradiol level on the day of hCG trigger predicted the clinical pregnancy rates after modified NC-FET; this likely mirrored the developmental competence of the corpus luteum and an appropriate luteal structure-function.
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Affiliation(s)
- Fariba Ramezanali
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Arezoo Arabipoor
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran
| | - Reza Salman-Yazdi
- Department of Andrology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Zahra Zolfaghari
- Department of Epidemiology and Reproductive Health, Reproductive Epidemiology Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mahnaz Asharfi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, Academic Center for Education, Culture and Research (ACECR), Tehran, Iran.,Department of Obstetrics and Gynecology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Leykam D, Mittal S, Hafezi M, Chong YD. Reconfigurable Topological Phases in Next-Nearest-Neighbor Coupled Resonator Lattices. Phys Rev Lett 2018; 121:023901. [PMID: 30085732 DOI: 10.1103/physrevlett.121.023901] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/25/2018] [Indexed: 06/08/2023]
Abstract
We present a reconfigurable topological photonic system consisting of a 2D lattice of coupled ring resonators, with two sublattices of site rings coupled by link rings, which can be accurately described by a tight-binding model. Unlike previous coupled-ring topological models, the design is translationally invariant, similar to the Haldane model, and the nontrivial topology is a result of next-nearest couplings with nonzero staggered phases. The system exhibits a topological phase transition between trivial and spin Chern insulator phases when the sublattices are frequency detuned. Such topological phase transitions can be easily induced by thermal or electro-optic modulators, or nonlinear cross phase modulation. We use this lattice to design reconfigurable topological waveguides, with potential applications in on-chip photon routing and switching.
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Affiliation(s)
- Daniel Leykam
- Center for Theoretical Physics of Complex Systems, Institute for Basic Science (IBS), Daejeon 34126, Republic of Korea
| | - S Mittal
- Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA
- Department of Electrical and Computer Engineering and IREAP, University of Maryland, College Park, Maryland 20742, USA
| | - M Hafezi
- Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA
- Department of Electrical and Computer Engineering and IREAP, University of Maryland, College Park, Maryland 20742, USA
| | - Y D Chong
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
- Centre for Disruptive Photonic Technologies, Nanyang Technological University, Singapore 637371, Singapore
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Hafezi M, Madani T, Arabipoor A, Zolfaghari Z, Sadeghi M, Ramezanali F. The effect of intrauterine human chorionic gonadotropin flushing on live birth rate after vitrified-warmed embryo transfer in programmed cycles: a randomized clinical trial. Arch Gynecol Obstet 2018; 297:1571-1576. [PMID: 29626233 DOI: 10.1007/s00404-018-4752-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/07/2018] [Indexed: 01/13/2023]
Abstract
PURPOSE To assess the influence of intrauterine human chorionic gonadotropin (hCG) before embryo transfer on the clinical pregnancy and live birth rates after vitrified-warmed embryo transfer (ET) in programmed cycles. METHODS This study was a single-blind randomized clinical trial for eligible patients underwent frozen ET cycles with long-term hormonal GnRH agonist protocol for endometrial preparation. Immediately prior to ET, the women were randomly divided into three groups. In the experimental group, 7-10 min before embryo transfer, 500 IU of hCG with a 40 μL of culture medium was injected into the uterus. In the first control (sham) group, 7-10 min before ET just 40 μL of culture medium intrauterine was infused. In the second control group, no intervention was done. The pregnancy outcomes were compared in the three groups using appropriate statistical tests. RESULTS Finally, 180 patients allocated into three groups. There was no significant difference in terms of patients 'characteristics among three groups. No significant difference was found in terms of clinical pregnancy among three groups. The miscarriage rate in control group (0%) was significantly lower than those of in the sham and hCG groups (9.8% and P = 0.01, 6.6% and P = 0.04, respectively). In addition, live birth rate (39.3%) in control group was significantly higher than those of in the sham and hCG groups (16.4% and P = 0.005, 23% and P = 0.051, respectively). CONCLUSION(S) It was found that intrauterine injection of 500 IU hCG before vitrified-warmed ET at cleavage stage has no beneficial effect on pregnancy outcome and is not suggested. NCT02355925.
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Affiliation(s)
- Maryam Hafezi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, P.O. Box 16656-59911, Tehran, Iran
| | - Tahereh Madani
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, P.O. Box 16656-59911, Tehran, Iran
| | - Arezoo Arabipoor
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, P.O. Box 16656-59911, Tehran, Iran
| | - Zahra Zolfaghari
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, P.O. Box 16656-59911, Tehran, Iran
| | - Marya Sadeghi
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, P.O. Box 16656-59911, Tehran, Iran
| | - Fariba Ramezanali
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, P.O. Box 16656-59911, Tehran, Iran.
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15
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Foss-Feig M, Niroula P, Young JT, Hafezi M, Gorshkov AV, Wilson RM, Maghrebi MF. Emergent equilibrium in many-body optical bistability. Phys Rev A (Coll Park) 2017; 95:10.1103/PhysRevA.95.043826. [PMID: 31093586 PMCID: PMC6513354 DOI: 10.1103/physreva.95.043826] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Many-body systems constructed of quantum-optical building blocks can now be realized in experimental platforms ranging from exciton-polariton fluids to ultracold Rydberg gases, establishing a fascinating interface between traditional many-body physics and the driven-dissipative, nonequilibrium setting of cavity QED. At this interface, the standard techniques and intuitions of both fields are called into question, obscuring issues as fundamental as the role of fluctuations, dimensionality, and symmetry on the nature of collective behavior and phase transitions. Here, we study the driven-dissipative Bose-Hubbard model, a minimal description of numerous atomic, optical, and solid-state systems in which particle loss is countered by coherent driving. Despite being a lattice version of optical bistability, a foundational and patently nonequilibrium model of cavity QED, the steady state possesses an emergent equilibrium description in terms of a classical Ising model. We establish this picture by making new connections between traditional techniques from many-body physics (functional integrals) and quantum optics (the system-size expansion). To lowest order in a controlled expansion-organized around the experimentally relevant limit of weak interactions-the full quantum dynamics reduces to nonequilibrium Langevin equations, which support a phase transition described by model A of the Hohenberg-Halperin classification. Numerical simulations of the Langevin equations corroborate this picture, revealing that canonical behavior associated with the Ising model manifests readily in simple experimental observables.
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Affiliation(s)
- M Foss-Feig
- United States Army Research Laboratory, Adelphi, Maryland 20783, USA
- Joint Quantum Institute, NIST and University of Maryland, College Park, Maryland 20742, USA
- Joint Center for Quantum Information and Computer Science, NIST and University of Maryland, College Park, Maryland 20742, USA
| | - P Niroula
- Joint Quantum Institute, NIST and University of Maryland, College Park, Maryland 20742, USA
- Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
| | - J T Young
- Joint Quantum Institute, NIST and University of Maryland, College Park, Maryland 20742, USA
| | - M Hafezi
- Joint Quantum Institute, NIST and University of Maryland, College Park, Maryland 20742, USA
- Department of Electrical and Computer Engineering and Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, Maryland 20742, USA
| | - A V Gorshkov
- Joint Quantum Institute, NIST and University of Maryland, College Park, Maryland 20742, USA
- Joint Center for Quantum Information and Computer Science, NIST and University of Maryland, College Park, Maryland 20742, USA
| | - R M Wilson
- Department of Physics, United States Naval Academy, Annapolis, Maryland 21402, USA
| | - M F Maghrebi
- Joint Quantum Institute, NIST and University of Maryland, College Park, Maryland 20742, USA
- Joint Center for Quantum Information and Computer Science, NIST and University of Maryland, College Park, Maryland 20742, USA
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA
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Shahrokh Tehraninejad E, Azimi Nekoo E, Ghaffari F, Hafezi M, Karimian L, Arabipoor A. Zygote intrafallopian tube transfer versus intrauterine cleavage or blastocyst stage transfer after intracytoplasmic sperm injection cycles in patients with repeated implantation failure: A prospective follow-up study. J Obstet Gynaecol Res 2015; 41:1779-84. [PMID: 26311000 DOI: 10.1111/jog.12779] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 04/19/2015] [Accepted: 05/12/2015] [Indexed: 11/28/2022]
Abstract
AIM This study aimed to compare the outcomes between zygote intrafallopian transfer (ZIFT) with intrauterine day-3 (cleavage stage) embryo transfer and intrauterine day-5 (blastocyst stage) embryo transfer in patients undergoing intracytoplasmic sperm injection. MATERIAL AND METHODS This prospective study was performed at Royan Institute, Tehran, Iran, between January 2012 and January 2014. Two hundred fifty women with more than three unexplained implantation failures were divided non-randomly into three groups according to embryonic age and methods used as follows: (i) intrauterine cleavage-stage embryo transfer (n = 100); (ii) intrauterine blastocyst-stage embryo transfer (n = 50); and (iii) ZIFT (n = 100). Implantation, clinical pregnancy, miscarriage and live birth rates were our main outcomes. RESULTS Patients' characteristics and ovarian response were comparable among the three groups. Implantation rate (56.1% vs 27.9%) was significantly higher in the blastocyst group as compared to the ZIFT group; however, clinical pregnancy rate (38% vs 23%) was not statistically significantly different between the two groups, but due to the significantly higher miscarriage rate (34.7% vs 5.3%) in the ZIFT group, the live birth rate was significantly higher in the blastocyst group (P = 0.04). No significant differences were found between the cleavage-stage and blastocyst-stage groups in terms of implantation, clinical pregnancy, miscarriage and live birth rates. CONCLUSION We do not recommend the use of the ZIFT procedure for patients with repeated implantation failures. It seems that replication of cleavage- or blastocyst-stage embryo transfer is more efficient and affordable.
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Affiliation(s)
- Ensieh Shahrokh Tehraninejad
- Departments of Endocrinology and Female Infertility.,Obstetrics and Gynecology Department, Faculty of Medicine, Tehran University of Medical Science, Tehran, Iran
| | - Elham Azimi Nekoo
- Obstetrics and Gynecology Department, Faculty of Medicine, Tehran University of Medical Science, Tehran, Iran
| | | | | | - Leila Karimian
- Embryology at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR
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Ghafoory S, Mehrabi A, Hafezi M, Cheng X, Breitkopf-Heinlein K, Hick M, Huichalaf M, Herbel V, Saffari A, Wölfl S. Nuclear accumulation of CDH1 mRNA in hepatocellular carcinoma cells. Oncogenesis 2015; 4:e152. [PMID: 26029826 PMCID: PMC4753520 DOI: 10.1038/oncsis.2015.11] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/13/2015] [Accepted: 04/16/2015] [Indexed: 02/06/2023] Open
Abstract
Expression of E-cadherin has a central role in maintaining epithelial morphology. In solid tumors, reduction of E-cadherin results in disruption of intercellular contacts. Consequently, cells lose adhesive properties and gain more invasive mesenchymal properties. Nevertheless, the mechanism of E-cadherin regulation is not completely elucidated. Here we analyzed the distribution of E-cadherin expression at the cell level in human hepatocellular carcinoma, in which human liver paraffin blocks from 25 hepatocellular carcinoma patients were prepared from cancerous (CA) and noncancerous areas (NCA). In situ hybridization (ISH) was performed to detect E-cadherin and hypoxia-induced factor-1α (HIF1α) mRNAs and immunohistochemistry to stain E-cadherin protein. In parallel, RNA was extracted from CA and NCA, and E-cadherin and HIF1α were quantified by quantitative reverse transcription PCR. ISH revealed abundant E-cadherin mRNA in nuclei of hepatocellular carcinoma cells (HCCs), whereas immunohistochemistry showed depletion of E-cadherin protein from these areas. In sections of NCA, E-cadherin mRNA was also found in the cytosol, and E-cadherin protein was detected on the membrane of cells. Experiments in cell lines confirmed E-cadherin mRNA in nuclei of cells negative for E-cadherin protein. HIF1α expression is elevated in CAs, which is associated with a clear cytosolic staining for this mRNA. Our results demonstrate that E-caderhin mRNA is selectively retained in nuclei of HCCs, whereas other mRNAs are still exported, suggesting that translocation of E-cadherin mRNA from nuclei to cytoplasm has a role in regulating E-cadherin protein levels during epithelial mesenchymal transition.
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Affiliation(s)
- S Ghafoory
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - A Mehrabi
- Department of General, Visceral and Transplantation surgery, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - M Hafezi
- Department of General, Visceral and Transplantation surgery, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - X Cheng
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - K Breitkopf-Heinlein
- Molecular Hepatology-Alcohol Associated Diseases, II. Medical Clinic, Faculty of Medicine at Mannheim, Ruprecht-Karls-University Heidelberg, Mannheim, Germany
| | - M Hick
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - M Huichalaf
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - V Herbel
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - A Saffari
- Department of General, Visceral and Transplantation surgery, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - S Wölfl
- Institute of Pharmacy and Molecular Biotechnology, Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
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18
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März K, Hafezi M, Weller T, Saffari A, Nolden M, Fard N, Majlesara A, Zelzer S, Maleshkova M, Volovyk M, Gharabaghi N, Wagner M, Emami G, Engelhardt S, Fetzer A, Kenngott H, Rezai N, Rettinger A, Studer R, Mehrabi A, Maier-Hein L. Toward knowledge-based liver surgery: holistic information processing for surgical decision support. Int J Comput Assist Radiol Surg 2015; 10:749-59. [PMID: 25847671 DOI: 10.1007/s11548-015-1187-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 03/20/2015] [Indexed: 11/27/2022]
Abstract
PURPOSE Malignant neoplasms of the liver are among the most frequent cancers worldwide. Given the diversity of options for liver cancer therapy, the choice of treatment depends on various parameters including patient condition, tumor size and location, liver function, and previous interventions. To address this issue, we present the first approach to treatment strategy planning based on holistic processing of patient-individual data, practical knowledge (i.e., case knowledge), and factual knowledge (e.g., clinical guidelines and studies). METHODS The contributions of this paper are as follows: (1) a formalized dynamic patient model that incorporates all the heterogeneous data acquired for a specific patient in the whole course of disease treatment; (2) a concept for formalizing factual knowledge; and (3) a technical infrastructure that enables storing, accessing, and processing of heterogeneous data to support clinical decision making. RESULTS Our patient model, which currently covers 602 patient-individual parameters, was successfully instantiated for 184 patients. It was sufficiently comprehensive to serve as the basis for the formalization of a total of 72 rules extracted from studies on patients with colorectal liver metastases or hepatocellular carcinoma. For a subset of 70 patients with these diagnoses, the system derived an average of [Formula: see text] assertions per patient. CONCLUSION The proposed concept paves the way for holistic treatment strategy planning by enabling joint storing and processing of heterogeneous data from various information sources.
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Affiliation(s)
- K März
- Department of Medical and Biological Informatics, German Cancer Research Center, Heidelberg, Germany,
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Amirchaghmaghi E, Rezaei A, Moini A, Roghaei MA, Hafezi M, Aflatoonian R. Gene expression analysis of VEGF and its receptors and assessment of its serum level in unexplained recurrent spontaneous abortion. Cell J 2015; 16:538-45. [PMID: 25685744 PMCID: PMC4297492 DOI: 10.22074/cellj.2015.498] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/01/2013] [Accepted: 02/16/2014] [Indexed: 11/09/2022]
Abstract
Objective Unexplained recurrent spontaneous abortion (URSA) is one of the main complications of pregnancy which is usually defined as three or more consecutive pregnancy
losses before the 20th week of gestation without a known cause. Vascular endothelial
growth factor (VEGF) is a potent angiogenic factor and shown, along with its receptors
(VEGFR1, 2), to play important roles in several physiologic processes including reproduction. The aim of the present study was to analyze gene expression of VEGF and VEGF
receptors in endometrium of patients with a history of URSA compared with normal fertile
women. In addition, serum VEGF concentration was assessed and compared between
the two groups at the same time.
Materials and Methods In this case control study, endometrial and blood samples were
obtained between day 19thand 24th of menstrual cycle (window of implantation) from 10
women with a history of URSA (case group) and 6 fertile women who had at least one
successful pregnancy (control group). Expression of VEGF and VEGFRs was studied by
reverse transcription- polymerase chain reaction (RT-PCR) and then quantified by real
time PCR. Normalization of expression levels was done by comparison with beta-actin
expression level as an internal control. Relative VEGF, VEGFR1 and VEGFR2 expression
quantities were compared between the two groups. Enzyme linked immunosorbent assay
(ELISA) was used for serum VEGF assay.
Results VEGF, VEGFR1 and VEGFR2 gene expression was detected in endometrial samples of both groups. The mean relative expression of VEGF gene was lower in the case group
compared with control women, however, both VEGF receptors were expressed higher in endometrium of the case group. In addition, the serum level of VEGF was significantly higher in the
case group compared with the controls.
Conclusion Alteration in gene expression of VEGF and its receptors in endometrium
and changes of serum VEGF might play important roles in pathogenesis of unexplained RSA.
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Affiliation(s)
- Elham Amirchaghmaghi
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Endocrinology and Female Infertility at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Abbas Rezaei
- Department of Immunology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ashraf Moini
- Department of Endocrinology and Female Infertility at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Mohammad Ali Roghaei
- Department of Gynecology and Obstetrics, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Maryam Hafezi
- Department of Endocrinology and Female Infertility at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Reza Aflatoonian
- Department of Endocrinology and Female Infertility at Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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Marcos D, Widmer P, Rico E, Hafezi M, Rabl P, Wiese UJ, Zoller P. Two-dimensional lattice gauge theories with superconducting quantum circuits. Ann Phys (N Y) 2014; 351:634-654. [PMID: 25512676 PMCID: PMC4263216 DOI: 10.1016/j.aop.2014.09.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Accepted: 09/10/2014] [Indexed: 05/27/2023]
Abstract
A quantum simulator of [Formula: see text] lattice gauge theories can be implemented with superconducting circuits. This allows the investigation of confined and deconfined phases in quantum link models, and of valence bond solid and spin liquid phases in quantum dimer models. Fractionalized confining strings and the real-time dynamics of quantum phase transitions are accessible as well. Here we show how state-of-the-art superconducting technology allows us to simulate these phenomena in relatively small circuit lattices. By exploiting the strong non-linear couplings between quantized excitations emerging when superconducting qubits are coupled, we show how to engineer gauge invariant Hamiltonians, including ring-exchange and four-body Ising interactions. We demonstrate that, despite decoherence and disorder effects, minimal circuit instances allow us to investigate properties such as the dynamics of electric flux strings, signaling confinement in gauge invariant field theories. The experimental realization of these models in larger superconducting circuits could address open questions beyond current computational capability.
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Affiliation(s)
- D. Marcos
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria
| | - P. Widmer
- Albert Einstein Center, Institute for Theoretical Physics, Bern University, CH-3012, Bern, Switzerland
| | - E. Rico
- IPCMS (UMR 7504) and ISIS (UMR 7006), University of Strasbourg and CNRS, 67000 Strasbourg, France
| | - M. Hafezi
- Joint Quantum Institute, NIST/University of Maryland, College Park 20742, USA
- Department of Electrical Engineering and Institute for Research in Electronics and Applied Physics, University of Maryland, College Park, MD 20742, USA
| | - P. Rabl
- Institute of Atomic and Subatomic Physics, TU Wien, Stadionallee 2, 1020 Wien, Austria
| | - U.-J. Wiese
- Albert Einstein Center, Institute for Theoretical Physics, Bern University, CH-3012, Bern, Switzerland
| | - P. Zoller
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, A-6020 Innsbruck, Austria
- Institute for Theoretical Physics, University of Innsbruck, A-6020 Innsbruck, Austria
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Mittal S, Fan J, Faez S, Migdall A, Taylor JM, Hafezi M. Topologically robust transport of photons in a synthetic gauge field. Phys Rev Lett 2014; 113:087403. [PMID: 25192126 DOI: 10.1103/physrevlett.113.087403] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2014] [Indexed: 06/03/2023]
Abstract
Electronic transport is localized in low-dimensional disordered media. The addition of gauge fields to disordered media leads to fundamental changes in the transport properties. We implement a synthetic gauge field for photons using silicon-on-insulator technology. By determining the distribution of transport properties, we confirm that waves are localized in the bulk and localization is suppressed in edge states. Our system provides a new platform for investigating the transport properties of photons in the presence of synthetic gauge fields.
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Affiliation(s)
- S Mittal
- Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA and Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, USA
| | - J Fan
- Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA
| | - S Faez
- Huygens-Kamerlingh Onnes Laboratorium, Universiteit Leiden, Postbus 9504, 2300 RA Leiden, The Netherlands
| | - A Migdall
- Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA
| | - J M Taylor
- Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA
| | - M Hafezi
- Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA and Department of Electrical and Computer Engineering, University of Maryland, College Park, Maryland 20742, USA
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Esmaeilzadeh M, Majlesara A, Faridar A, Hafezi M, Hong B, Esmaeilnia-Shirvani H, Neyazi B, Mehrabi A, Nakamura M. Brain metastasis from gastrointestinal cancers: a systematic review. Int J Clin Pract 2014; 68:890-9. [PMID: 24666726 DOI: 10.1111/ijcp.12395] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Brain metastases (BM) from the gastrointestinal tract (GIT) cancers are relatively rare. Despite those advances in diagnostic and treatment options, life expectancy and quality of life in these patients are still poor. In this review, we present an overview of the studies which have been previously performed as well as a comprehensive strategy for the assessment and treatment of BM from the GIT cancers. METHOD To obtain information on brain metastases from GIT, we performed a systematic review of Medline, EMBASE and the Cochrane Central Register of Controlled Trials (CENTRAL). The collected data included patient characteristics, primary tumor data and brain metastases data. RESULT In our search of the literature, we found 74 studies between 1980 and 2011, which included 2538 patients with brain metastases originated from gastrointestinal cancer. Analysis of available data showed that among 2538 patients who had brain metastases from GIT, a total of 116 patients (4.57%) had esophageal cancer, 148 patients (5.83%) had gastric cancer, 233 patients (9.18%) had liver cancer, 13 patients had pancreas cancer (0.52%) and 2028 patients (79.90%) had colorectal cancer. The total median age of the patients was 58.9 years. CONCLUSION Brain metastases have been considered the most common structural neurological complication of systemic cancer. Due to poor prognosis they influence the survival rate as well as the quality of life of the patients. The treatment of cerebral metastasis depends on the patients' situation and the decisions of the treating physicians. The early awareness of a probable metastasis from GI to the brain will have a great influence on treatment outcomes as well as the survival rate and the quality-of-life of the patients.
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Affiliation(s)
- M Esmaeilzadeh
- Department of Neurosurgery, Hannover Medical School, Hannover, Germany
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Stannigel K, Hauke P, Marcos D, Hafezi M, Diehl S, Dalmonte M, Zoller P. Constrained dynamics via the Zeno effect in quantum simulation: implementing non-Abelian lattice gauge theories with cold atoms. Phys Rev Lett 2014; 112:120406. [PMID: 24724634 DOI: 10.1103/physrevlett.112.120406] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Indexed: 05/29/2023]
Abstract
We show how engineered classical noise can be used to generate constrained Hamiltonian dynamics in atomic quantum simulators of many-body systems, taking advantage of the continuous Zeno effect. After discussing the general theoretical framework, we focus on applications in the context of lattice gauge theories, where imposing exotic, quasilocal constraints is usually challenging. We demonstrate the effectiveness of the scheme for both Abelian and non-Abelian gauge theories, and discuss how engineering dissipative constraints substitutes complicated, nonlocal interaction patterns by global coupling to laser fields.
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Affiliation(s)
- K Stannigel
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020 Innsbruck, Austria
| | - P Hauke
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020 Innsbruck, Austria
| | - D Marcos
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020 Innsbruck, Austria
| | - M Hafezi
- Joint Quantum Institute, NIST/University of Maryland, College Park, Maryland 20742, USA
| | - S Diehl
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020 Innsbruck, Austria and Institute for Theoretical Physics, University of Innsbruck, 6020 Innsbruck, Austria
| | - M Dalmonte
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020 Innsbruck, Austria and Institute for Theoretical Physics, University of Innsbruck, 6020 Innsbruck, Austria
| | - P Zoller
- Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020 Innsbruck, Austria and Institute for Theoretical Physics, University of Innsbruck, 6020 Innsbruck, Austria
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Weih S, Nickkholgh A, Kessler M, Frongia G, Hafezi M, Golriz M, Fard N, Holland-Cunz S, Mehrabi A. Models of short bowel syndrome in pigs: a technical review. ACTA ACUST UNITED AC 2013; 51:66-78. [PMID: 24081112 DOI: 10.1159/000354806] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Accepted: 08/05/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND Short bowel syndrome (SBS) is still a life-threatening disease in both children and adults. Although the therapeutic options are improving, challenges still remain, and to overcome these challenges is a major focus of SBS research today. In order to simulate anatomical and physiological conditions similar to those in humans for research, porcine models of SBS are often used. Various approaches for generating SBS models have been described in the literature. METHODS/RESULTS In this work, we present a review of different types of porcine models of SBS and outline the differences between those models regarding types of animals, surgical procedures, monitoring, and methods of assessment. CONCLUSION The aim of this study was to select the most suitable SBS model regarding the purpose of the research.
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Affiliation(s)
- S Weih
- Department of Pediatric Surgery, University of Heidelberg, Heidelberg, Germany
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Golriz M, Fonouni H, Nickkholgh A, Hafezi M, Garoussi C, Mehrabi A. Pig kidney transplantation: an up-to-date guideline. ACTA ACUST UNITED AC 2012; 49:121-9. [PMID: 23172014 DOI: 10.1159/000343132] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 09/04/2012] [Indexed: 12/19/2022]
Abstract
BACKGROUND Swine and human beings have many aspects in common that make swine a well-characterized large animal model for kidney transplantation (KTx). However, pigs have some peculiar anatomical characteristics that standardized techniques must adapt to. The aim of this study was to prepare an up-to-date guideline for porcine KTx. METHODS To achieve this goal, we performed a Medline search using the terminology 'kidney' or 'renal' and 'transplantation' and 'pig' or 'swine' or 'porcine'. We found over 1,300 published articles since 1963. Only 13 studies focused on the surgical aspect. Furthermore, we reviewed related books and articles about swine anatomical characteristics and surgery. Finally, our experimental experiences of KTx during the last few decades were added to this collection. RESULTS Proper hosting, fasting, anesthesia, medical therapy and monitoring can prevent postoperative complications. Explantation with a Carrel patch of the aorta facilitates the implantation and prevents future stenosis. Native nephrectomy makes the follow-up of the implanted organ more precise. KTx in the infrarenal fossa via end-to-side anastomosis to the aorta and inferior vena cava followed by ureteroureterostomy are the recommended options for KTx in pigs compared to other possible methods. CONCLUSION Pigs, with respect to their characterizations, constitute one of the best large animal models for KTx. Preoperative preparations are as important as the intra- and postoperative management. Using the most adaptable methods of surgery with respect to the specific anatomical characteristics of pigs can prevent undermining the studies and avoid preventable complications and pitfalls.
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Affiliation(s)
- M Golriz
- Department of General, Visceral and Transplantation Surgery, University of Heidelberg, Heidelberg, Germany
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Tehraninejad ES, Hafezi M, Arabipoor A, Aziminekoo E, Chehrazi M, Bahmanabadi A. Comparison of cabergoline and intravenous albumin in the prevention of ovarian hyperstimulation syndrome: a randomized clinical trial. J Assist Reprod Genet 2012; 29:259-64. [PMID: 22231013 DOI: 10.1007/s10815-011-9708-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Accepted: 12/28/2011] [Indexed: 11/29/2022] Open
Abstract
PURPOSE To compare the efficacy of cabergoline (Cb2) and intravenous human albumin (HA) in the prevention of ovarian hyperstimulation syndrome. METHODS In this randomized controlled trial study, 138 women who were at high risk for developing OHSS were randomly allocated into two groups. In Group one, 20 gr of HA 20% was infused over 1 h. Group two received 0.5 mg per day of Cb2 orally for 7 days, starting on oocyte pickup day. All patients were visited seven and 14 days after oocyte retrieval to determine early clinical or ultrasound evidence of OHSS. RESULTS Moderate OHSS was observed in 33 versus 14 cases in the HA and Cb2 groups, respectively, which was significantly different. The number of severe OHSS cases in the HA group was significantly higher than in the Cb2 group (P < 0.001). CONCLUSIONS Prophylactic oral low dose cabergoline was more effective and less costly than intravenous human albumin in the prevention of OHSS in high-risk patients.
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Affiliation(s)
- Ensieh Shahrokh Tehraninejad
- Department of Endocrinology and Female Infertility, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Number 12, East Hafez Avenue, Bani Hashem Street, Resalat Highway, Tehran, Iran.
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Golriz M, Esmaeilzadeh M, Fonouni H, Jarahian P, Rad TM, Faridar A, Hafezi M, Schmidt J, Mehrabi A. FEASIBILITY OF EARLY DETECTION OF METABOLIC CHANGES DURING AND AFTER KIDNEY TRANSPLANTATION USING MICRODIALYSIS. Transplantation 2010. [DOI: 10.1097/00007890-201007272-01743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bajcsy M, Hofferberth S, Balic V, Peyronel T, Hafezi M, Zibrov AS, Vuletic V, Lukin MD. Efficient all-optical switching using slow light within a hollow fiber. Phys Rev Lett 2009; 102:203902. [PMID: 19519028 DOI: 10.1103/physrevlett.102.203902] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2009] [Indexed: 05/13/2023]
Abstract
We demonstrate a fiber-optical switch that is activated at tiny energies corresponding to a few hundred optical photons per pulse. This is achieved by simultaneously confining both photons and a small laser-cooled ensemble of atoms inside the microscopic hollow core of a single-mode photonic-crystal fiber and using quantum optical techniques for generating slow light propagation and large nonlinear interaction between light beams.
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Affiliation(s)
- M Bajcsy
- Harvard-MIT Center for Ultracold Atoms, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, USA
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Vengalattore M, Hafezi M, Lukin MD, Prentiss M. Optical bistability at low light level due to collective atomic recoil. Phys Rev Lett 2008; 101:063901. [PMID: 18764454 DOI: 10.1103/physrevlett.101.063901] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2008] [Indexed: 05/26/2023]
Abstract
We demonstrate optical nonlinearities due to the interaction of weak optical fields with the collective motion of a strongly dispersive ultracold gas. The combination of a recoil-induced resonance in the high gain regime and optical waveguiding within the dispersive medium enables us to achieve a collective atomic cooperativity of 275+/-50 even in the absence of a cavity. As a result, we observe optical bistability at input powers as low as 20 pW. The present scheme allows for dynamic optical control of the dispersive properties of the ultracold gas using very weak pulses of light. The experimental observations are in good agreement with a theoretical model.
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Affiliation(s)
- M Vengalattore
- MIT-Harvard Center for Ultracold Atoms, Harvard University, Cambridge, Massachusetts 02138, USA.
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30
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Abstract
When inspecting the scene the circumstances under which a body is found and the findings on the body surface may give first clues to premortal drug abuse. Besides fresh and/or old injection marks tattoos, underweight and signs of physical neglect, especially after long-term abuse, are mentioned in literature. The incidence of such externally visible physical signs of drug abuse was systematically investigated in 100 consecutive drug deaths occurring from 1995 to 1997. Sixty-eight percent of the bodies were found in the apartments of the deceased or those of friends, 11% in public restrooms or the washrooms of restaurants. The so-called body dumping was seen in three cases. In 61% externally visible, fresh injection marks were found; on dissection of the subcutaneous veins, residues of previous injections were found in 95% of the cases. Tattoos were present in 63%. In 8% there was clear evidence of physical neglect. Eighty-six percent of the drug victims had a normal nutritional status.
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Affiliation(s)
- M Bohnert
- Institute of Forensic Medicine, University of Freiburg, Albertstr. 9, D-79104 Freiburg, Germany.
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Abstract
One hundred consecutive drug death victims autopsied at the Institute of Forensic Medicine, University of Freiburg, between 1995 and 1997 were studied retrospectively as to whether the drug users had also consumed nicotine. The study included histological examination of the lung tissue for smoker cells and radioimmunological as well as GC-MS assays of the urine for cotinine, the primary metabolite of nicotine. It was found that 98 out of 100 drug victims had consumed nicotine in addition to illicit drugs or replacements. Yellowish-brown discolorations on the middle and index fingers were discernible in 44 drug victims, whereas fresh or scarred burns due to glowing cigarettes were found in six deceased drug consumers. Diseases of the bronchial system typical of heavy smokers were seen in 35 cases. Siderophages could be demonstrated in 17 of the 100 drug deaths.
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Affiliation(s)
- M Hafezi
- Institute of Forensic Medicine, University of Freiburg, Albertstrasse 9, D-79104, Freiburg, Germany
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Abstract
OBJECTIVE In this paper, we review the mechanisms thought to be involved in the activation of osteoclasts in periodontitis. SUMMARY Osteoclasts are regulated by both microbial and host factors. Some factors act directly on cells of the osteoclast lineage, whereas others act indirectly through other cell types in the bone environment. The proinflammatory cytokines (interleukins 1 and 6, tumor necrosis factors) have been implicated in the stimulation of osteoclastic resorption. The roles of the immunoregulatory cytoknes (interleukins 2 and 4, interferon gamma) are less clear, but decreased levels of these factors may contribute to periodontitis. A number of lipid mediators may be involved in stimulation of bone resorption. These include bacterial lipopolysaccharide and host-derived platelet-activating factor and prostaglandins. More recently, reactive oxygen intermediates and extracellular nucleotides, both present at sites of inflammation, have been investigated as possible modulators of osteoclast activity. The potential use of antiresorptive therapies in periodontitis is reviewed. CONCLUSIONS A wide range of host and bacterial factors contribute to the loss of alveolar bone in periodontitis. However, much remains to be understood about the complex mechanisms through which these factors regulate osteoclast activity. Further studies at the cellular and molecular level will lead to a better understanding of these processes and perhaps suggest new approaches for periodontal therapy.
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Affiliation(s)
- S H Wiebe
- Department of Physiology, Faculty of Dentistry, University of Western Ontario, London, Canada
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