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Sweet L, Vasilevski V. Women's experiences of pregnancy and lactation after bariatric surgery: A scoping review. Midwifery 2022; 110:103338. [DOI: 10.1016/j.midw.2022.103338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 01/10/2022] [Accepted: 04/08/2022] [Indexed: 12/17/2022]
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Zhu L, Zhou B, Zhu X, Cheng F, Pan Y, Zhou Y, Wu Y, Xu Q. Association Between Body Mass Index and Female Infertility in the United States: Data from National Health and Nutrition Examination Survey 2013–2018. Int J Gen Med 2022; 15:1821-1831. [PMID: 35221716 PMCID: PMC8865871 DOI: 10.2147/ijgm.s349874] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/09/2022] [Indexed: 12/23/2022] Open
Abstract
Purpose This study aimed to investigate the effects of body mass index (BMI) on infertility in women of childbearing age. Patients and Methods We performed a cross-sectional study using data from 3624 participants from the National Health and Nutrition Examination Survey (NHANES). We used BMI and fertility status in the survey as independent and dependent variables, respectively. We evaluated their relationship and used smoothed curve fitting and multivariate logistic regression analysis as well as a generalized additive model (GAM) to determine the effect of BMI. Results Logistic regression model analysis linked BMI and infertility after adjusting for potential confounders OR 1.03, 95%Cl: 1.02–1.05). There was a non-linear relationship between BMI and infertility, with each unit increase in BMI reducing the risk of infertility by 33% when BMI was <19.5 kg/m2. In contrast, when BMI ≥19.5 kg/m2, each unit increase in BMI predicted a 3% increase in the risk of infertility. Conclusion The relationship between infertility and BMI presented a U-shaped curve. Therefore, a BMI that lay at the extremes of the spectrum tended to predict infertility. We believe that this study will support the maintenance of suitable BMI levels in women preparing for pregnancy.
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Affiliation(s)
- Lei Zhu
- Thyroid Surgery Department, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, People’s Republic of China
| | - Bin Zhou
- Thyroid Surgery Department, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, People’s Republic of China
| | - Xi Zhu
- Thyroid Surgery Department, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, People’s Republic of China
| | - Feng Cheng
- Thyroid Surgery Department, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, People’s Republic of China
| | - Ying Pan
- Breast Surgery Department, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, People’s Republic of China
| | - Yi Zhou
- Breast Surgery Department, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, People’s Republic of China
| | - Yong Wu
- Thyroid Surgery Department, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, People’s Republic of China
| | - Qingna Xu
- Health Care Office, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, Lishui City, Zhejiang Province, People’s Republic of China
- Correspondence: Qingna Xu, Health Care Office, The Fifth Hospital Affiliated to Wenzhou Medical University, Lishui Central Hospital, No. 289, Kuocang Road, Lishui City, Zhejiang Province, People’s Republic of China, Tel +86 13735910709, Email
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Drummond-Barbosa D. Local and Physiological Control of Germline Stem Cell Lineages in Drosophila melanogaster. Genetics 2019; 213:9-26. [PMID: 31488592 PMCID: PMC6727809 DOI: 10.1534/genetics.119.300234] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 07/09/2019] [Indexed: 12/12/2022] Open
Abstract
The long-term survival of any multicellular species depends on the success of its germline in producing high-quality gametes and maximizing survival of the offspring. Studies in Drosophila melanogaster have led our growing understanding of how germline stem cell (GSC) lineages maintain their function and adjust their behavior according to varying environmental and/or physiological conditions. This review compares and contrasts the local regulation of GSCs by their specialized microenvironments, or niches; discusses how diet and diet-dependent factors, mating, and microorganisms modulate GSCs and their developing progeny; and briefly describes the tie between physiology and development during the larval phase of the germline cycle. Finally, it concludes with broad comparisons with other organisms and some future directions for further investigation.
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Affiliation(s)
- Daniela Drummond-Barbosa
- Department of Biochemistry and Molecular Biology, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205
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