Journal of Human Lactation最新文献

{"title":"The <i>Journal of Human Lactation</i> at 40 and Reflections on Transitions in Leadership.","authors":"Ellen Chetwynd","doi":"10.1177/08903344251401919","DOIUrl":"10.1177/08903344251401919","url":null,"abstract":"","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"7-8"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146776311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Thawing Time on Donor Human Milk Composition at 24 and 48 Hours.","authors":"Katsumi Mizuno, Miori Tanaka, Midori Date, Kasumi Takayama","doi":"10.1177/08903344251401905","DOIUrl":"10.1177/08903344251401905","url":null,"abstract":"<p><strong>Background: </strong>According to the human milk banking guidelines in Japan, issued in 2014, pasteurized donor human milk (PDHM) is discarded 24 hours after thawing. However, previous studies have suggested that PDHM remains safe for administration to preterm infants for up to 48 hours after thawing, potentially reducing unnecessary wastage.</p><p><strong>Research aim: </strong>This study aimed to assess the microbiological safety and the preservation of nutritional and immunological properties of PDHM stored under refrigeration for up to 48 hours after thawing.</p><p><strong>Methods: </strong>This was a paired-sample experimental study evaluating the safety and composition of PDHM during refrigerated storage after thawing. Individual pasteurized milk samples from 40 donors were thawed overnight in a refrigerator and analyzed at 24 and 48 hours. Samples were cultured on sheep blood agar and incubated for 48 hours at 35 °C to assess bacterial growth. Macronutrients, micronutrients, and immune substances (sIgA and lactoferrin) were measured using specialized analyzers and ELISA kits. The pH of the samples was determined at 24 and 48 hours using a tabletop pH analyzer.</p><p><strong>Results: </strong>Small but statistically significant changes were observed in several components during 48 hours of storage. Fat, carbohydrates, calcium, inorganic phosphorus, sIgA, and lactoferrin showed slight variations, while protein and zinc remained stable. Fat decreased after 24 hours compared with immediately after pasteurization but did not decline further at 48 hours. The mean pH increased slightly from 7.047 to 7.102 (<i>p</i> = 0.003). No bacterial growth was detected at either 24 or 48 hours.</p><p><strong>Conclusions: </strong>Although minor biochemical changes occurred, these were not clinically significant. Extending PDHM use to 48 hours after thawing maintained its nutritional and microbiological integrity and could inform revisions to current Japanese milk bank guidelines.</p>","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"177-183"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147355333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measuring Low Milk Supply: Methods and Implications for Lactation Research and Clinical Practice.","authors":"Katie T Kivlighan, Jill R Demirci","doi":"10.1177/08903344261426744","DOIUrl":"10.1177/08903344261426744","url":null,"abstract":"<p><strong>Background: </strong>Low milk supply is a common problem in lactation, yet it is difficult to study and manage due to multifactorial causes and inconsistent measurement across research and clinical practice.</p><p><strong>Objective: </strong>To synthesize current subjective and objective approaches to assessing low milk supply, including scales and survey items, infant weight trajectories and test-weight procedures, milk expression protocols, biomarkers, and device-based metrics. For each method, we appraise validity, feasibility, and potential harms.</p><p><strong>Key points: </strong>In both research and clinical settings, low milk supply is measured inconsistently and imprecisely. Tools available to assess maternal perception of low milk supply and quantify infant milk intake and production all have limitations.</p><p><strong>Conclusion: </strong>Combining self-report and objective measurements and selecting measurement tools specific to the outcome of interest can help with accurate identification and management of low milk supply.</p>","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"126-134"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147493883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Frozen Storage on Macronutrient, Mineral, and Immune Component Content of Pasteurized Donor Human Milk.","authors":"Miori Tanaka, Kasumi Takayama, Midori Date, Nagisa Matsuura, Katsumi Mizuno","doi":"10.1177/08903344251401544","DOIUrl":"https://doi.org/10.1177/08903344251401544","url":null,"abstract":"<p><strong>Background: </strong>Pasteurized donor human milk (PDHM) is widely recommended for preterm infants when their mother's own milk is unavailable. Storage duration of frozen PDHM varies across countries. In Japan, PDHM is stored at -30 °C; however, there is no information on whether long-term storage at -30 °C affects PDHM quality.</p><p><strong>Research aims: </strong>This study aimed to determine the effects of freezing at -30 °C for 6, 9, and 12 months after expression on bacterial growth and nutrient content of PDHM.</p><p><strong>Methods: </strong>This was an experimental laboratory study of nutrient and bacterial stability over time. A total of 20 milk samples were pasteurized within 3 months after expression and stored at -30 °C. Bacterial counts and levels of macronutrients, minerals, secretory Immunoglobulin A (sIgA), and lactoferrin in PDHM were analyzed after pasteurization and at 6, 9 and 12 months after expression. A Friedman test followed by a Bonferroni-adjusted Wilcoxon signed-rank test was performed.</p><p><strong>Results: </strong>No bacteria were detected in the 20 samples after pasteurization or at any time point. When the concentrations of nutrients were compared to the values immediately after pasteurization, carbohydrates at 9 and 12 months and zinc at 12 months showed slight increases, but the respective increases were minimal (carbohydrate: +3.2% at 9 months and +3.8% at 12 months; zinc: +7.8% at 12 months). The concentrations of protein, fat, calcium, inorganic phosphorus, sIgA, and lactoferrin remained stable at 6, 9, and 12 months.</p><p><strong>Conclusions: </strong>These results suggest that PDHM can be safely stored at -30 °C for 12 months after expression without compromising bacterial safety and nutritional quality.</p>","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":"42 1","pages":"184-190"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147512664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response to Letter to the Editor.","authors":"Andini Pramono, Alvia Hikmawati, Setiya Hartiningtiyaswati, Julie Smith","doi":"10.1177/08903344251394746","DOIUrl":"10.1177/08903344251394746","url":null,"abstract":"","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"218"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146086030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Moving the Needle on Maternity Practices in Infant Nutrition and Care: Using mPINC Data to Evaluate the Impact of the ENRICH Carolinas Project.","authors":"Kathryn Wouk, Kathleen C Parry, Julia F Bourg, Christine Masterman, Michelle J Hendricks, Brooke Gilliam, Catherine Sullivan","doi":"10.1177/08903344251406529","DOIUrl":"10.1177/08903344251406529","url":null,"abstract":"<p><strong>Background: </strong>Evidence-based maternity practices advanced by the Baby-Friendly Hospital Initiative (BFHI) are associated with increased human milk feeding and improved maternal and infant health. However, inequitable distribution of BFHI facilities contributes to disparities in access to evidence-based practices. ENRICH Carolinas (ENRICH) provided technical assistance to birthing facilities across North and South Carolina to improve maternity practices by advancing toward BFHI or state-level designation.</p><p><strong>Research aim: </strong>To compare changes in maternity practices for participating and non-participating facilities during the period of the technical assistance initiative using Maternity Practices in Infant Nutrition and Care (mPINC) data.</p><p><strong>Method: </strong>We obtained data from the United States Centers for Disease Control and Prevention (CDC) 2018, 2020, and 2022 mPINC surveys of birthing facilities in North and South Carolina (<i>N</i> = 98). The CDC calculates a total mPINC score for each facility to indicate its overall support for optimal infant feeding and subscores for immediate postpartum care, rooming-in, feeding practices, feeding education and support, discharge support, and institutional management. Scores range from 0 to 100, with higher scores indicating better practices. We conducted a longitudinal analysis using linear mixed-effects modeling to assess the association between participation in the ENRICH technical assistance initiative and changes in scores over time.</p><p><strong>Results: </strong>Findings show that facilities which participated in the technical assistance initiative had significantly larger increases in total mPINC scores from 2018 to 2022, with an average unadjusted total score 4.8 points higher (95% CI [0.6, 9.2, <i>p</i> = 0.03]) than non-participating facilities, despite scores not being significantly different at baseline. ENRICH facilities made particular progress in rooming-in and institutional management compared with non-ENRICH facilities.</p><p><strong>Conclusions: </strong>Facilities participating in a two state systems-level technical assistance initiative provide more optimal care and support for infant feeding practices than non-participating facilities, suggesting this initiative may improve access to evidence-based maternity care.</p>","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"116-125"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146157342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Income, Breastfeeding Problems, Infant Care Support, and Sleep Are Associated With Maternal Satisfaction With Breastfeeding.","authors":"Larissa Santos Martins, Thabata Zelice da Cruz de Moraes, Andréa Costa Goes, Daniela da Silva Rocha, Kiriaque Barra Ferreira Barbosa, José Rodrigo Santos Silva, Danielle Góes da Silva","doi":"10.1177/08903344251398007","DOIUrl":"10.1177/08903344251398007","url":null,"abstract":"<p><strong>Background: </strong>Maternal satisfaction with breastfeeding is an important indicator of breastfeeding success. However, little is known about the satisfaction of women in lower-middle-income countries, whose breastfeeding rates tend to be higher than those in high-income countries.</p><p><strong>Aim: </strong>To investigate the factors associated with maternal satisfaction with breastfeeding.</p><p><strong>Methods: </strong>This is a cross-sectional and observational study with 291 women in the 6 months postpartum, all users of the public health network in the city of Aracaju, Brazil. Data were collected using the Maternal Breastfeeding Evaluation Scale, along with a semi-structured questionnaire covering demographic, pregnancy, childbirth, and postpartum characteristics. A multivariable logistic regression model with intra-block analysis was constructed to identify factors associated with maternal satisfaction with breastfeeding.</p><p><strong>Results: </strong>The average maternal satisfaction score was 125.3 (<i>SD</i> = 13.7). Higher maternal satisfaction was associated with lower monthly family income (less than half the minimum wage; <i>OR</i> = 2.12; 95% CI [1.20, 3.74]), absence of problems in breastfeeding (<i>OR</i> = 2.09; 95% CI [1.19, 3.67]), current exclusive breastfeeding (<i>OR</i> = 1.82; 95% CI [1.09, 3.04]), support in caring for the child (<i>OR</i> = 1.89; 95% CI [1.05, 3.40]), and good quality of maternal sleep (<i>OR</i> = 1.71; 95% CI [1.01, 2.90]).</p><p><strong>Conclusion: </strong>Preventing breastfeeding problems and providing support in childcare, with a focus on improving maternal sleep quality, are essential to increasing breastfeeding satisfaction in low-resource women. These strategies are low-cost and feasible for implementation within routine health services.</p>","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"191-199"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146157403","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Breastfeeding and Chestfeeding Experiences of Cisgender Sexual Minority Women, Transgender, and Gender Diverse Parents.","authors":"Diana M Tordoff, Mitchell R Lunn, Danit Ariel, Susan Crowe, Micah E Lubensky, Annesa Flentje, Juno Obedin-Maliver","doi":"10.1177/08903344251391163","DOIUrl":"10.1177/08903344251391163","url":null,"abstract":"<p><strong>Background: </strong>Sexual and gender minority adults are increasingly growing their families and having children, yet there is limited information on the lactation experiences of sexual and gender minority parents.</p><p><strong>Method: </strong>Using data from The PRIDE Study, a national cohort of sexual and gender minority adults in the United States, we examined patterns and correlates of lifetime breast/chestfeeding among sexual minority (i.e., lesbian, bisexual, queer) cisgender women, transgender women, transgender men, and gender diverse individuals who were parents.</p><p><strong>Results: </strong>Our analysis included 1,562 parents aged 19-83 years with a median of two children (IQR 1-3). Among this population, 941 (60.2%) were sexual minority cisgender women, 232 (14.9%) transgender women, 199 (12.7%) transgender men, and 190 (12.2%) gender diverse parents assigned female at birth. Among 962 parents who had ever carried a pregnancy and delivered a child, sexual minority cisgender women were most likely to have ever breast/chestfed (91.7%), followed by gender diverse parents (88.8%) and transgender men (83.3%). No other demographic factors were associated with ever breast/chestfeeding. Few participants (6.7%) had ever breast/chestfed a child from another person's pregnancy. Ever having delivered a child and having an increasing number of children were associated with ever breast/chestfeeding a child from another person's pregnancy. In addition, seven (3%) transgender women had ever breast/chestfed a child.</p><p><strong>Conclusions: </strong>In our cohort, rates of lifetime breast/chestfeeding were high among sexual and gender minority parents who had ever carried a pregnancy. Breast/chestfeeding provides important health and infant-parent bonding benefits in families where one or more parents has the interest in and capacity for lactation. Co-lactation and/or lactation induction may be particularly beneficial for sexual and gender minority families.</p>","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"82-93"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145587750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Original Research - Environmental Sustainability Practices and Policies Within the United States Breast Pump Industry: A Cross-Sectional Analysis.","authors":"Callie Laubacher, Melissa L Glasser, Julia M Dos Santos, Jill R Demirci","doi":"10.1177/08903344251406542","DOIUrl":"10.1177/08903344251406542","url":null,"abstract":"<p><strong>Background: </strong>In the United States, there are high rates of distribution and use of breast pumps. However, research on the environmental impact of the growing breast pump industry remains unexplored.</p><p><strong>Research aims: </strong>The aim of this study was to examine current recycling programs and environmental sustainability initiatives of breast pump companies whose products are commonly distributed in the United States. A secondary aim was to analyze the materials used to manufacture breast pumps and accessories that are pertinent to environmental considerations and human health.</p><p><strong>Methods: </strong>We conducted a cross-sectional survey, using publicly available information on the companies' websites and phone and/or email responses from breast pump company representatives.</p><p><strong>Results: </strong>Of 20 breast pump companies included in the analysis, one reported having a recycling program, and eight provided disposal recommendations on their websites. Three companies had stated environmental initiatives. Eighteen companies reported using polypropylene, silicone, and other plastics in their breast pumps and/or pump accessories, and two companies reported using acrylonitrile butadiene styrene.</p><p><strong>Conclusion: </strong>In the United States, there is a lack of recycling programs and accessible information regarding recycling, environmental initiatives, and materials used in breast pumps and/or pump accessories. With the expansion of the U.S. breast pump industry, convenient and transparent information regarding recycling programs and environmental initiatives must be prioritized.</p>","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"200-2015"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146207086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Peri-Surgical Support: Experiences of Breastfeeding Women.","authors":"Lena De Hondt, Santina L Gorsen, Joke Muyldermans, Eline Tommelein","doi":"10.1177/08903344251398775","DOIUrl":"10.1177/08903344251398775","url":null,"abstract":"<p><strong>Background: </strong>Breastfeeding continuation can be challenging for patients undergoing surgical procedures. Guidelines regarding peri-surgical measures and medication use are available, but it is not clear to what extent these are applied in clinical practice and how the care is experienced by breastfeeding mothers.</p><p><strong>Research aim: </strong>To describe patient perspectives on perioperative support for breastfeeding mothers undergoing surgical procedures.</p><p><strong>Methods: </strong>An online, cross-sectional study was conducted among adult Belgian women who received analgesics or anesthetics during a surgical procedure while breastfeeding. The pre-tested survey assessed beliefs about breastfeeding and its health benefits, perioperative practices used and experienced, medication use, and advice related to breastfeeding and human milk.</p><p><strong>Results: </strong>From September 2021 through April 2022, 193 participants completed the questionnaire. In all, 45 participants (23.3%) reported that no healthcare provider asked about their breastfeeding status prior to their procedure, and 43 (22.3%) reported no discussion on medication use and safety during breastfeeding. Guidance on breastfeeding management varied widely, with conflicting advice: 47 (24.4%) were advised to breastfeed immediately after the procedure, while 84 (43.5%) ultimately did. In contrast, 11 (5.7%) were advised to express and discard their milk once, 37 (19.2%) for 12 hours, and 31 (16.1%) for 24 hours after the procedure, while 10 (5.2%), 28 (14.5%), and 21 (10.9%) ultimately did, respectively. Many sought information beyond their healthcare team, for example, in online forums (<i>n</i> = 77; 39.9%) and websites (<i>n</i> = 50; 25.9%).</p><p><strong>Conclusions: </strong>While awareness of breastfeeding benefits is generally good amongst breastfeeding mothers, women's experiences around breastfeeding support during surgical procedures vary, often not reflecting the most recent evidence-based standards. Better education of healthcare professionals, more comprehensive surgical protocols, or greater awareness of existing guidelines could help to meet the need for breastfeeding support during surgery.</p>","PeriodicalId":15948,"journal":{"name":"Journal of Human Lactation","volume":" ","pages":"105-115"},"PeriodicalIF":1.8,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146227026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}