Neutralizing antibodies in milk and blood of lactating women vaccinated for SARS-CoV-2: a systematic review / Anticorpos neutralizantes no leite e no sangue de lactantes vacinadas para SARS-CoV-2: uma revisão sistemática

ABSTRACT Objective: To compare the presence of neutralizing antibodies against SARS-CoV-2 found in the breast milk and blood of vaccinated lactating women with those not vaccinated. Data source: The study was registered in the International Prospective Register of Systematic Reviews (PROSPERO) under CRD42021287554 and followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Cohort, case-control, and cross-sectional studies that evaluated antibodies against SARS-CoV-2 in the milk and blood of vaccinated mothers and had as control group unvaccinated mothers were eligible. Health Sciences Descriptors (DeCs), Medical Subject Headings (MeSH) and Emtree descriptors were used for the Virtual Health Library (VHL), Medical Literature Analysis and Retrieval System Online (Medline/Pubmed), and Embase databases, respectively. In the Web of Science and Scopus, the strategy was adapted. No restrictions on the publication period and language were set. Data synthesis: The search identified 233 records, of which 128 duplicates and 101 papers that did not meet the inclusion criteria were excluded. Hence, four cohort studies were eligible. Nursing mothers vaccinated with the Pfizer-BioNTech and Moderna vaccines showed antibodies against SARS-CoV-2 in their blood and breast milk. Conclusions: Vaccinated lactating women had higher levels of immunoglobulin G (IgG) and A (IgA) in serum and breast milk than unvaccinated women.

RESUMO Objetivo: Comparar a presença de anticorpos neutralizantes contra o SARS-CoV-2 no leite materno e no sangue das lactantes vacinadas em relação àquelas não vacinadas. Fontes de dados: Foi efetuado registro no International Prospective Register of Systematic Reviews — PROSPERO (CRD42021287554) e foram seguidas as diretrizes do Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). Foram elegíveis estudos de coorte, caso-controle e transversais que avaliaram anticorpos contra o SARS-CoV-2 no leite e no sangue de lactantes vacinadas e tiveram como grupo controle lactantes não vacinadas. Utilizaram-se os Descritores em Ciências da Saúde (DeCs), Medical Subject Heading (MeSH) e Emtree para as bases Biblioteca Virtual em Saúde (BVS), Medical Literature Analysis and Retrieval System Online (Medline/PubMed) e Embase, respectivamente. Na Web of Science e Scopus foi feita adaptação da estratégia. Não foram estabelecid as restrições quanto ao período de publicação e idioma. Síntese dos dados: As buscas identificaram 233 registros. Foram excluídos 128 duplicados e 101 fora dos critérios de inclusão, e quatro estudos de coorte foram elegíveis. As lactantes vacinadas com Pfizer-BioNTech e Moderna apresentaram anticorpos contra SARS-CoV-2 no sangue e no leite materno. Conclusões: As mulheres lactantes vacinadas apresentaram níveis mais elevados de imunoglobulina G (IgG) e A (IgA) no soro e no leite materno em comparação com as mulheres não vacinadas.

Tratamiento de la alergia a la proteína de la leche de vaca. Consenso interdisciplinario de expertos / Cow's milk allergy treatment. An expert consensus

El tratamiento de la alergia a las proteínas de la leche de vaca se basa en la eliminación completa de las proteínas de leche de vaca de la dieta del niño y de la madre en los que reciben leche materna. Para lograr la remisión de los síntomas y la tolerancia futura, la exclusión debe ser total. En los niños que reciben fórmula, esta deberá tener hidrolizado extenso de proteínas en las formas leves o moderadas, mientras que aquellas a base de aminoácidos se reservan para los casos más graves. El tiempo de tratamiento, la adquisición de tolerancia y el momento para la prueba de provocación oral van a variar según el cuadro clínico, el mecanismo inmunológico implicado y la edad del paciente. El objetivo de este consenso ha sido reflejar el conocimiento actualizado junto con la experiencia de neonatólogos, pediatras, especialistas en alergia, nutrición y gastroenterología.

The treatment of cow's milk protein allergy is based on the complete elimination of cow's milk protein from the diet. To achieve remission of symptoms and future tolerance, exclusion must be total. In formula fed infants the extensively hydrolysed formula is the most appropriate option in mild or moderate forms, while those based on amino acids are reserved for the most severe cases. The treatment time, the acquisition of tolerance and the moment for the oral provocation test will vary according to the clinical picture, the immunological mechanism involved and the age of the patient. The aim of this consensus has been to reflect the updated knowledge together with the experience of neonatologists, pediatricians, experts in allergy, nutrition and gastroenterology

Postbióticos: un nuevo miembro en la familia de los bióticos / Postbiotics: A new member in the biotics family

Los postbióticos fueron definidos en 2021 por la Asociación Científica Internacional de Probióticos y Prebióticos (ISAPP) como "una preparación de microorganismos inanimados y/o sus componentes celulares capaces de conferir un efecto benéfico al hospedador". El campo de los postbióticos es un área nueva dentro de la familia de los bióticos; se han desarrollado ya numerosos productos con aplicaciones clínicas, como la estimulación inmunológica, el manejo de diarreas en niños y adultos, el abordaje del intestino irritable, además de tres fórmulas infantiles. En particular, las fórmulas infantiles con postbióticos obtenidos a partir de la fermentación de la leche con Bifidobacterium breve C50 y Streptococcus thermophilus O65, y sus metabolitos, incluido el oligosacárido 3'-GL, han demostrado seguridad y contribución al desarrollo de la microbiota intestinal y el sistema inmune asociado al intestino. Estas modificaciones contribuyen a la prevención y el manejo de los trastornos funcionales digestivos del lactante.

Postbiotics were defined in 2021 by the International Scientific Association for Probiotics and Prebiotics (ISAPP) as a "preparation of inanimate microorganisms and/or their cellular components that confers a health benefit to the host." The field of postbiotics is a new area within the biotics family; numerous products have already been developed for clinical applications, such as immune stimulation, the management of diarrhea in children and adults, the management of irritable bowel syndrome, and 3 infant formulas. In particular, infant formulas with postbiotics obtained from milk fermented with Bifidobacterium breve C50 and Streptococcus thermophilus O65 ­and their metabolites­, including the oligosaccharide 3'-GL, have demonstrated to be safe and to contribute to the development of the gut microbiota and the gutassociated immune system. These modifications help to prevent and manage functional gastrointestinal disorders in infants.

Alergia a las proteínas de la leche de vaca: proceso diagnóstico. Consenso interdisciplinario de expertos / Cow's milk allergy: diagnostic process. Expert consensus

Las proteínas de la leche de vaca pueden causar alergia alimentaria. Los distintos mecanismos de acción involucrados y la variabilidad clínica según la etapa de la vida pediátrica en la que se manifieste ocasionan dificultades en su abordaje, con riesgo de sub- o sobrediagnóstico. En este proceso, intervienen profesionales de diversas áreas y es recomendable su interacción. Es por ello que el objetivo de este consenso ha sido reflejar el conocimiento actualizado desde la interdisciplina, generando recomendaciones para su correcto diagnóstico. Hemos trabajado con el método de Delphi para sumarle a la evidencia científica, la experiencia proveniente de neonatólogos, pediatras, especialistas en alergia, nutrición y gastroenterología. Pensamos que este enfoque interdisciplinario de trabajo va a resultar de utilidad práctica y promoverá una atención más integral de estos pacientes.

Cow's milk protein can cause food allergy. The different mechanisms of action involved, the clinical variability depending on the stage of pediatric life in which it manifests, leads to difficulties in its approach, with the risk of under- or over-diagnosis. Professionals from various areas intervene in this process and their interaction is recommended. That is why the objective of this consensus has been to reflect the updated knowledge in an interdisciplinary mode, generating recommendations for its correct diagnosis. We have worked with the Delphi method to add to the scientific evidence, the experience from neonatologists, pediatricians, experts in allergy, nutrition and gastroenterology. We think that this interdisciplinary approach will be of practical use and will promote more comprehensive care for these patients.

Brucella anthropi infection in a 5-week-old infant

Congenital brucellosis in infants is well described but occurs rarely and very few cases have been reported till now. Acquired brucellosis in young infants has rarely been reported. A 5-week-old infant weighing 3340 gm, presented to the emergency with complaints of fever, abdominal distension, lethargy, and decreased feeding for five days. A clinical diagnosis of septicemia was made. Laboratory parameters were suggestive of septicemia. There was a history of ingestion of unpasteurized buffalo抯 milk. Empirical antibiotics started after withdrawing the blood culture. Blood culture came positive for Brucella anthropi. Ultrasonography of the abdomen showed a small abscess in the left iliac fossa measuring 44� mm. The antibiotics were changed to piperacillin-tazobactam and amikacin as per the blood culture and sensitivity report. Supportive care was given, and the baby gradually improved. The child was discharged on oral rifampicin and trimethoprim-sulfamethoxazole for 4 weeks and is being followed up and is doing well. Young infants may acquire Brucella infection from breastmilk or ingesting unpasteurized animal milk. Prompt diagnosis and treatment is the key to management. Exclusive breastfeeding is the best way to prevent not only animal milk-acquired Brucella but most other types of infection.

Factors associated with stunting incidence in toddlers in Cibungbulang sub-district, Bogor

Background: Stunting is a developmental disorder characterized by L/A or H/A index z-score ?2 SD and contribute to various negative impacts until adulthood. The prevalence of stunting among toddlers in Bogor Regency reached 24.9 percent according to SSGI. This study aimed to determine relationships between family income, being breastfed and drinking other milks, eating habits, handwashing and oral hygiene habits with stunting incidence among toddlers in Cibungbulang sub-district. Methods: The study used cross-sectional design with 307 samples selected through systematic randomization. Almost all data, except stunting, were collected through interview with respondents, while stunting was identified through height measurement. Results: Most toddlers had family income under the minimum wage (81.4%), did not drink breast milk anymore (52,4%), consumed other milks (60.6%), ate independently (69.4%), washed their hands after using toilets (91.2%), and cleaned their mouths at least once a day (85%). A total of 35% toddlers were stunted. There were significant relationships between family income (p=0.001), drinking breast milk (p=0.000) and other milks (p=0.001), eating habits (p=0.001), handwashing (p=0.035) and oral hygiene habits (p=0.039) with stunting incidence in toddlers (p<0.05). Conclusions: Family income, consumption of breast milk and other milks, eating habits, and handwashing and oral hygiene habits were associated with stunting in toddlers.

Conmemorando los cincuenta años de Leche Purita: importancia de la leche en la erradicación de la desnutrición infantil en Chile

La desnutrición ocurre cuando hay una ingesta o asimilación deficiente de la energía y los nutrientes. Si esta se produce dentro de los primeros años de vida, las consecuencias para la salud son devastadoras. El tratamiento temprano de la desnutrición es clave para reducir estas consecuencias y en este proceso la leche tiene una participación destacada. La leche es un excelente alimento debido al contenido y calidad de sus macro- y micronutrientes, lo que ha llevado a que la investigación y el uso de la leche en el tratamiento de la desnutrición hayan aumentado sostenidamente desde comienzos del siglo XX. En Chile, la desnutrición infantil fue prácticamente erradicada entre los años 1960 y 1980 debido a la aplicación exitosa de una serie de políticas públicas materno-infantiles, dentro de las cuales la Leche Purita fue fundamental. Sin embargo, la historia de la leche como parte de las políticas nutricionales en Chile comenzó mucho antes. Conmemorando los cincuenta años desde el nacimiento de Leche Purita, el objetivo de este trabajo es realizar un breve repaso acerca de la importancia histórica de la leche en las políticas nutricionales en Chile, enfatizando la contribución realizada por la Leche Purita a la erradicación de la desnutrición infantil y a la disminución de la anemia en niños.

Undernutrition occurs when there is poor intake or assimilation of energy and nutrients. If undernutrition is established within the first years of life, the health consequences are devastating. Early treatment of undernutrition is critical to reduce these consequences and milk plays an important role in this treatment. Cow's milk is an excellent food due to the content and quality of its macro- and micronutrients. This has led to a steady increase in research and the use of milk in treating undernutrition since the beginning of the 20th century. In Chile, child undernutrition was practically eradicated between the decades of 1960 and 1980 due to the successful application of maternal and child public policies, within which the product Leche Purita was fundamental. However, the history of milk as part of nutritional policies in Chile began much earlier. Commemorating fifty years since the introduction of Leche Purita, we aim to summarize the historical importance of milk in Chile's nutritional policies. We emphasize Leche Purita's role in eradicating child undernutrition and reducing anemia among children.

An interesting case of dengue masquerading a splenic brucellosis

Mixed infections or co-infections are not uncommon in dengue fever which can occur as a result of transient suppression of host immunity by unknown mechanisms or as a part of its complication. Brucellosis co infection or post dengue complication can occur due to the indigenous practice of consumption of raw unpasteurized cattle milk. Here is a case report of a 14-year-old girl who presented with dengue fever but then continued to have persistence of fever spikes with abdominal pain requiring administration of antibiotics as well as upgradation, on evaluation was found to have splenic abscess with prior history of ingestion of raw goat抯 milk with serology suggestive of Brucellosis. This case report was done to elucidate the likelihood of co infection of zoonoses like dengue and brucellosis and the importance of consideration of brucellosis as a differential in cases of unresolving pyrexia post dengue fever especially in countries with wide prevalence of this practice of consumption of unpasteurized cattle milk.

Feeding premature babies in the neonatology department of the Androva Mahajanga Hospital

Background: The initiation and progression of enteral nutrition in premature infants remains a challenge. The aim of this study was to evaluate enteral nutritional management in premature infants in the neonatology department at the mother and child complex Androva Mahajanga.Methods: This was a retrospective descriptive study over a 7-month period, from January to July 2018. All neonates under 37SA who received enteral feeding were included.Results: During the study period, 74 newborns were able to receive enteral feeding. The mean age of onset of enteral feeding was 10.6 hours. In 89.2% of cases, enteral feeding was started within the first 24 hours of life. On average, the initial quantity administered was 28.4ml/kg/d. Human milk was used most frequently (54.8%). The presence of residue was the most frequently encountered incident (31.5%). Ulcero-necrotizing enterocolitis occurred in 7 newborns (9.5%). Forty-five newborns had a good outcome, with an average weight gain of 9.28 g/kg/d.Conclusions: The implementation of a nutritional management protocol for newborns, especially premature babies, in the neonatology department would be beneficial for a better outcome and growth of the baby.

Breast feeding and infection control in premature newborns: an integrative review / Aleitamento materno e controle de infecções em recém-nascidos prematuros: revisão integrativa / Lactancia materna y control de infecciones en recién nacidos prematuros: revisión integrativa

Background and Objectives: investigating the relationship between breast milk use infection control in premature newborns may provide a basis for continuing exclusive breastfeeding, reducing the rates of early introduction of formula and strengthening their immune system. In view of this, the objective was to analyze the relationship between breastfeeding and infection control in premature newborns. Content: an integrative review, which included original articles, available electronically and with a temporal cut of the last five years. Searches were carried out in August 2022 in the Medical Literature Analysis and Retrieval System Online, Literatura Latino-Americana e do Caribe em Ciências da Saúde, Scopus, Web of Science and Science Direct databases, using the descriptors Breastfeeding, Milk Human, Infection Control, Infection Control and Premature Newborn, concatenated with the search operators "AND" and "OR". The Rayyan digital tool was used to organize the study selection stages. A total of 490 studies were identified in the search, of which seven were selected. All studies were published in English between 2018 and 2022. Regarding design, three were case-control studies, one was a cohort, one was cross-sectional, and two were clinical trials. Regarding the level of evidence, studies classified as level IV predominated. Conclusion: human breast milk has the power to reduce the incidence of necrotizing enterocolitis and cytomegalovirus, reduce the worsening of inflammatory states and late-onset sepsis, prevent diseases, encourage the physical and cognitive development of premature newborns.(AU)

Justificativa e Objetivos: a investigação da relação do uso de leite materno com o controle de infecções em recém-nascidos prematuros poderá fornecer embasamento para continuidade do aleitamento materno exclusivo, diminuindo os índices de introdução precoce de fórmula e propiciando o fortalecimento de seu sistema imunológico. Diante disso, objetivou-se analisar a relação do aleitamento materno com o controle de infecções em recém-nascidos prematuros. Conteúdo: revisão integrativa, que incluiu artigos originais, disponíveis eletronicamente e com recorte temporal dos últimos cinco anos (2018 a 2022). Foram realizadas buscas no mês de agosto de 2022 nas bases de dados Medical Literature Analysis and Retrieval System Online, Literatura Latino-Americana e do Caribe em Ciências da Saúde, Scopus, Web of Science e Science Direct, sendo utilizado os descritores Aleitamento Materno, Leite Humano, Controle de Infecções, Controle de Infecção e Recém-Nascido Prematuro, concatenados com os operadores de pesquisa "AND" e "OR". Foi utilizada a ferramenta digital Rayyan para a organização das etapas de seleção dos estudos. Foram identificados 490 estudos na busca, dos quais sete foram selecionados. Todos os estudos foram publicados em inglês entre 2018 e 2022. Quanto ao delineamento, três eram estudos de caso controle, um era coorte, um era transversal e dois eram ensaios clínicos. Em relação ao nível de evidência, predominaram os estudos classificados em nível IV. Conclusão: o leite humano materno tem o poder de diminuir a incidência de enterocolite necrosante e citomegalovírus, reduzir o agravamento de estados inflamatórios e de sepse tardia, prevenir doenças, estimular o desenvolvimento físico e cognitivo do recém-nascido prematuro.(AU)

Justificación y Objetivos: investigar la relación entre el uso de la leche materna y el control de infecciones en los recién nacidos prematuros puede brindar una base para continuar con la lactancia materna exclusiva, reducir las tasas de introducción temprana de fórmula y fortalecer su sistema inmunológico. Ante ello, el objetivo fue analizar la relación entre la lactancia materna y el control de infecciones en recién nacidos prematuros. Contenido: revisión integradora, que incluyó artículos originales, disponibles electrónicamente y con un corte temporal de los últimos cinco años. Las búsquedas se realizaron en agosto de 2022 en las bases de datos Medical Literature Analysis and Retrievel System Online, Literatura Latino-Americana e do Caribe em Ciências da Saúde, Web of Science y Science Direct, utilizando los descriptores Lactancia Materna, Leche Humana, Control de Infecciones, Control de Infecciones y Recién Nacido Prematuro, concatenado con los operadores de búsqueda "AND" y "OR". Se utilizó la herramienta digital Rayyan para organizar las etapas de selección de estudios. En la búsqueda se identificaron 490 estudios, de los cuales se seleccionaron siete. Todos los estudios fueron publicados en inglés entre 2018 y 2022. En cuanto al diseño, tres fueron estudios de casos y controles, uno fue de cohorte, uno fue transversal y dos fueron ensayos clínicos. En cuanto al nivel de evidencia predominaron los estudios clasificados como nivel IV. Conclusión: la leche materna humana tiene el poder de reducir la incidencia de enterocolitis necrotizante y citomegalovirus, reducir el agravamiento de estados inflamatorios y sepsis tardía, prevenir enfermedades, estimular el desarrollo físico y cognitivo de los recién nacidos prematuros.(AU)

A cross-sectional study of breastfeeding device use and its determinants in mothers attending immunization outpatient department of an urban health training centre attached to a teaching medical institute

Background: Breastfeeding as a practice was recommended by World Health Organization. Breastfeeding devices are used to feed the expressed breastmilk to infants, it is one determinant which is linked with both favourable and unfavourable outcomes in exclusive breastfeeding practices among term and pre-term infants. Methods: This was a cross sectional, observational study carried at an urban health training centre. The study subjects were mother and their infants residing in the urban slum. Objectives of the research were to determine the proportion of exclusive breastfeeding, to find various breastfeeding devices used by mothers and the factors associated with it. A total of 230 mother-infant dyads were included in the study. Results: Majority of mothers belonged to 21-30-year age group, housewives (93%) and Hindu by religion (68%). Majority received education till secondary school (57%) and 3.5% were illiterate. Majority had their first child before they turned 30 and most of the infants were female (55%). Over 3/4th of the infants were being exclusively breastfed, initiated on breastfeeding within first hour of birth (41%) and 1/5th received pre-lacteal feed, Breastfeeding device use was noted in 15 participants (6.5%), in which majority were using spoon followed by bottle. Mothers using breastfeeding devices showed higher proportion of exclusive breastfeeding. Conclusions: Use of breastfeeding device showed association with mother’s occupation, lower age of mother at the time of marriage and first delivery while religion and parity of mothers were not significantly associated with it.

Association of pregnancy factors with cow's milk protein allergy in infants / 北京大学学报(医学版)

Objective:To preliminarily explore the association of pregnancy factors with cow's milk protein allergy in infants.Methods:This study was based on data from a subcohort of a study called ge-netic susceptibility to cow's milk allergy in Chinese children,including infants born in Peking University People's Hospital between March 1,2020,and December 31,2020.The infants were divided into a cow's milk protein allergy(CMPA)group and a control group according to whether they had developed cow's milk protein allergy at the age of 1 year.We retrospectively collected the clinical data of infants and their mothers before and during pregnancy,and analyzed the association of multiple factors during pregnancy with cow's milk protein allergy in infants.Results:A total of 278 infants were enrolled in this study,including 52 infants with CMPA and 226 infants without CMPA.Among them,there were 143 boys and 135 girls.The proportion of male infants in the CMPA group(69.2％)was higher than that in the control group(47.3％),and the difference was statistically significant(P=0.004).There were no significant differences in the distribution of birth weight,gestational age at birth,low-birth-weight in-fants,premature,umbilical cord entangle neck,and neonatal asphyxia between the CMPA group and the control group(P＞0.05).The proportion of mothers complicated with autoimmune diseases,anemia or antibiotics exposure during pregnancy in the CMPA group was higher than that in the control group,and there were statistical differences between the two groups(P＜0.05).There was no significant difference in the distribution of other pregnancy complications between the two groups(P＞0.05),such as eclamp-sia/preeclampsia,chronic hypertension/gestational hypertension,diabetes/gestational diabetes,thyroid diseases,and so on.There was no significant difference in the overall distribution of some blood routine indexes during pregnancy between the CMPA group and the control group(P＞0.05).Multivariate Lo-gistic regression analysis showed that male infant,mothers complicated with autoimmune diseases or ane-mia,antibiotic exposure during pregnancy were independent risk factors for cow's milk protein allergy.Conclusion:Male infant,mothers complicated with autoimmune diseases or anemia,antibiotic exposure during pregnancy were independent risk factors for cow's milk protein allergy.

Comparison of the short-term outcomes in very/extremely low birth weight infants supplemented with fortified donor human milk or preterm formula / 中华围产医学杂志

Objective:To compare the short-term outcomes of very low birth weight (VLBW) and extremely low birth weight (ELBW) infants supplementarily fed with fortified donor human milk (DHM) or preterm formula (PF) when the mother's own milk (MOM) is insufficient.Methods:This retrospective cohort study included 91 VLBW or ELBW preterm infants with birth weight<1 500 g who were hospitalized in Peking Union Medical College Hospital from October 1, 2017, to September 30, 2020. Based on the supplemental feeding method when MOM was insufficient, these infants were divided into the DHM group ( n=51) and PF group ( n=40). Mann-Whitney U, t-test, Chi-square test, or Fisher's exact test were used to compare the short-term clinical outcomes during hospitalization between the two groups. Results:(1) There were no statistically significant differences between the 91 preterm infants in the DHM group and PF group in their gestational age, birth weight, sex ratio, birth mode, mothers' age at delivery, or the proportion of infants of small gestational age (all P>0.05). (2) The feeding volume in the DHM group was significantly greater than that in the PF group on the 14th day after birth [(108.2±53.1) vs. (81.0±47.8) ml/(kg·d), t=0.78, P=0.020]. Moreover, the time to achieve the feeding amounts up to 120 ml/(kg·d) and 150 ml/(kg·d) for infants in the DHM group were significantly shorter than those in the PF group [(17.5±10.2) vs. (30.0±12.0) d, t=4.38; (22.1±13.3) vs. (32.3±11.9) d, t=0.02; both P<0.05]; (3) Lower proportion of peripherally inserted central catheter (PICC) [58.8% (30/51) vs. 100% (40/40), χ 2=21.88, P<0.001] and shorter PICC duration were observed in the DHM group [10.0 (0.0-19.0) vs. 29.0 (17.0-40.5) d, Z=5.56, P<0.001] compared to the PF group. The times of red blood cell transfusions and the incidence of late sepsis in the DHM group were less than those in the PF group [0.0 (0.0-2.0) vs. 2.0 (1.0-3.0) times, Z=4.44, P<0.001; 23.5% (12/51) vs. 50.0% (20/40), χ 2=6.39, P=0.011]. There were no statistically significant differences observed in the incidence of bronchopulmonary dysplasia, neonatal necrotizing enterocolitis, retinopathy of prematurity, and the length of hospitalization (all P>0.05). Conclusion:When MOM is insufficient, supplementing VLBW and ELBW infants with fortified donor human milk can shorten the time to achieve enteral nutrition and reduce the use rate and time of PICC, the incidence of late-onset sepsis, and the times of red blood cell transfusion.

Effect of fermentation time on exopolysaccharide production by Weissella confusa isolated from peanut (Arachis hypogaea L.) milk

Aims@#The aim of this study was to identify an isolate B, an exopolysaccharide (EPS)-producing lactic acid bacteria and determine the fermentation time effect on EPS production. @*Methodology and results@#Isolate B, an EPS producer, was isolated from peanut milk containing commercial sugar, which was fermented spontaneously for 24 h. Isolate B was identified biochemically using API 50 CH and molecularly based on 16S rDNA. The effect of fermentation time on EPS production by isolate B with variations of the fermentation time were 12, 24, 36, 48 and 60 h. Isolate B was able to produce EPS qualitatively by producing mucoid colonies on solid media containing sucrose. The identification revealed that this isolate was Weissella confusa both biochemically using API 50 CH and molecularly based on 16S rDNA sequence homology-based method. The fermentation time significantly affected EPS production (P<0.05). Isolate B (W. confusa) produced the highest EPS (10.41 g/L) at 36 h with a cell viability of 6.5 × 108 CFU/mL. Furthermore, the FTIR results of EPS showed absorption bands characteristic of carbohydrates, including O-H, C-H, C=O, C-O-C and α-1,6 glycosidic groups. The EPS in this study was most likely a dextran type.@*Conclusion, significance and impact of study@#The yield of EPS production was influenced by fermentation time. Results suggest that W. confusa isolated from peanut milk had a good ability for EPS production. Therefore, it can be considered further to apply this strain for the production of EPS. However, further research is required.

Review: Harvesting therapeutically important bioactive compounds from possible poisonous Clitocybe species

@#From ancient times, humans have used mushrooms in different forms. Mushrooms have found their way into multiple cuisines, medicines, and other vital aspects of our lives. We have discovered and worked on different species of mushrooms. Some species of Clitocybe have not found their way into the research as they are poisonous. Many species of Clitocybe have not been studied for their therapeutically critical bioactive compounds. In this review, we have focused on the benefits of the compounds extracted from different species of Clitocybe. The compounds present in Clitocybehave been confirmed to have a wide range of beneficial effects, including antitumor, bacteriostatic, antifungal, antiviral, anti-inflammatory, antioxidant, antiaging, antidiabetic, hypoglycemic, immune stimulant, antiproliferative, neuroprotective, cardioprotective and chemopreventive properties. It has also found its way into the food industry with notable characteristics such as milk-coagulant, flavorings agent, organic food preservative, and yeast culture. There are studies confirming the use of compounds extracted from different species of Clitocybe as biological pest control.

Dynamic changes of platelet-related indicators in infants with cow′s milk protein allergy / 中国儿童保健杂志

【Objective】 To dynamically monitor and analyze the changes of platelets and related indicators in infants with cow′s milk protein allergy (CMPA) during clinical treatment, in order to provide clues for further diagnosis and treatment of CMPA. 【Methods】 From August to November in 2022, 59 children aged from 1 month to 3 years old with CMPA in the pediatric outpatient clinic were selected as the CMPA group, and 29 healthy children who took physical examination were selected as the control group. The differences in platelet related indicators from a routine blood test were compared between the two groups, and their diagnostic value for CMPA was analyzed by receiver operating characteristic (ROC) curves. 【Results】 The mean platelet count (PLT) and plateletcrit (PCT) at baseline in the CMPA group were (374.68±113.21)×109/L and 0.37±0.10, significantly higher than those in control group[(271.07±40.32)×109/L, 0.26±0.05] (t=6.27, 6.43, P<0.001). In the CMPA group, after treatment, the mean PLT level was (316.39±94.68)×109/L, and the mean PCT level was 0.31±0.10, indicating a statistically significant decrease in PLT and PCT levels after treatment compared to baseline (t=4.32,4.75,P<0.05). The diagnostic performance, indicated by the area under the curve (AUC), for PLT and PCT in diagnosing CMPA was 0.811 and 0.823, respectively. The cutoff values for PLT and PCT were determined to be 304.5×109/L and 0.305, respectively. 【Conclusion】 The PLT and PCT levels in children with CMPA are found to be higher than those in healthy controls, suggesting their potential diagnostic value in the diagnosis of CMPA.

Differences in exosome miRNAs in human breast milk between preterm and full-term infants / 中国儿童保健杂志

【Objective】 To evaluate the differential miRNA expression of breast milk exosome in premature and full-term groups, and to analyze the regulatory pathways by bioinformatics, so as to provide guidance and scientific basis for the growth and development of premature infants and the prevention and treatment of related diseases. 【Methods】 From August 2020 to June 2021, breast milk samples from 13 premature (premate group) and 9 full-term infants(full-term group) in the Department of Child Health Care of the Second Affiliated Hospital of Nanjing Medical University were collected to extract exosomes. The miRNAs of two groups of breast milk exosomes were sequenced by high-throughput sequencing. According to the sequencing results, miRNA expression profiles of milk exosome were analyzed. Biological function software was used to carry out GO and KEGG pathway analysis of differential miRNA. 【Results】 The expression of miRNA in human milk exosomes was rich, especially hsa-miR-148a-3p,hsa-let-7b-5p, hsa-let-7g-5p, hsa-miR-22-3p, hsa-miR-99a-5p, hsa-miR-200, hsa-miR-146b-5p and hsa-miR-26a-5p were relatively high expressed in preterm group and full-term group. Differential expression analysis showed that compared with full-term infant breast milk, 7 miRNAs were up-regulated(log2|fold change|=2.803, 2.714, 1.632, 2.360, 1.350, 3.387, 2.137, respectively), and 5 miRNAs were down-regulated(log2|fold change|=-2.553, -2.197, -2.771, -1.395, -1.136, respectively)(|fold change>2|, P<0.05) in breast milk for preterm infants. In these differential expressed miRNAs, down-regulated miR-29b(P=0.001) and up-regulated miR-133a-3p(P=0.004) were associated with inflammation, and up-regulated miR-126-5p(P=0.021) and miR-126-3p(P=0.041) were associated with lipid metabolism. The fatty acid biosynthesis pathway was obviously enriched in preterm group. MiR-7-5p, miR-29b-3p and miR-100-5p played a role in the fatty acid synthesis pathway. 【Conclusions】 Exosomal miRNAs are rich in breast milk, and have significant differences between preterm and full-term infants′ mothers. The differentially expressed miRNA in preterm infants treast milk may be related to inflammation and promote the growth and development of preterm infants through the fatty acid biosynthesis pathway.

Research progress in the effects of the main active ingredients of breast milk on the intestinal and immune functions of infants / 中国儿童保健杂志

Gut microbiome plays an important role in maintaining lifelong health. Infancy is a critical period for the establishment of gut microbiota, which is influenced by many factors, including delivery methods, antibiotics, and feeding mode. Human milk contains a variety of bioactive factors, such as human milk oligosaccharide, secretory immunoglobulin, and human milk microbiota, which play important roles in the establishment and stability of newborn microbiota. This article presents the latest research progress on the effects of the aforementioned bioactive factors in breast milk on the colonization and development of infant microbiota, and explains how these substances affect immune function through intestinal bacteria.

Simultaneous determination of bepotastine and hydroxychloroquine concentrations in human breast milk by LC-MS/MS / 中国药房

OBJECTIVE To establish a liquid chromatography-tandem mass spectrometry （LC-MS/MS） method for the simultaneous determination of bepotastine and hydroxychloroquine concentrations in human breast milk and apply it in clinical practice. METHODS The milk samples （50 μL） were precipitated with 200 μL methanol containing the internal standard （100 ng/mL chloroquine）， and the supernatant was taken for analysis after vortexing and centrifugation. The separation was performed on a Waters ACQUITY UPLC HSS T3 column with mobile phase consisted of 0.1% formic acid-10 mmol/L ammonium acetate solution （phase A） and methanol （phase B） at gradient elution of 0.35 mL/min. The injection volume was 2 μL， and the analysis time was 4 min. The detection of the analytes was performed by electrospray ionization in positive mode by multiple reaction monitoring with the transition of m/z 388.9→201.9 （bepotastine）， m/z 336.3→247.1 （hydroxychloroquine）， and m/z 320.2→247.2 （chloroquine）. The established LC-MS/MS method was researched in methodology and used to determine the drug concentrations in the breast milk of 1 case of lactating patient. RESULTS The linear range of bepotastine was 2-200 ng/mL（ r＝0.999）， and hydroxychloroquine was 50-1 000 ng/mL （r＝0.998）. The intra-assay and inter-assay precisions were both ≤15%， and the accuracy， extraction recovery， matrix effect， and stability all met the acceptance criteria for bioanalytical method validation. The concentration result of bepotastine and hydroxychloroquine in the breast milk of the lactating patient showed， after 2 h and 14 h， the concentrations of bepotastine in the breast milk of the patient were 34.95 ng/mL and 5.72 ng/mL； those of hydroxychloroquine were 211.92 ng/mL and 104.18 ng/mL， respectively. The relative infant doses were 1.83% and 0.56%， respectively. CONCLUSIONS The established method is simple， rapid， and sensitive. It is suitable for simultaneous determination of bepotastine and hydroxychloroquine concentrations in human milk and can provide reference for safe drug use during lactation.

Simultaneous determination of bepotastine and hydroxychloroquine concentrations in human breast milk by LC-MS/MS / 中国药房

OBJECTIVE To establish a liquid chromatography-tandem mass spectrometry （LC-MS/MS） method for the simultaneous determination of bepotastine and hydroxychloroquine concentrations in human breast milk and apply it in clinical practice. METHODS The milk samples （50 μL） were precipitated with 200 μL methanol containing the internal standard （100 ng/mL chloroquine）， and the supernatant was taken for analysis after vortexing and centrifugation. The separation was performed on a Waters ACQUITY UPLC HSS T3 column with mobile phase consisted of 0.1% formic acid-10 mmol/L ammonium acetate solution （phase A） and methanol （phase B） at gradient elution of 0.35 mL/min. The injection volume was 2 μL， and the analysis time was 4 min. The detection of the analytes was performed by electrospray ionization in positive mode by multiple reaction monitoring with the transition of m/z 388.9→201.9 （bepotastine）， m/z 336.3→247.1 （hydroxychloroquine）， and m/z 320.2→247.2 （chloroquine）. The established LC-MS/MS method was researched in methodology and used to determine the drug concentrations in the breast milk of 1 case of lactating patient. RESULTS The linear range of bepotastine was 2-200 ng/mL（ r＝0.999）， and hydroxychloroquine was 50-1 000 ng/mL （r＝0.998）. The intra-assay and inter-assay precisions were both ≤15%， and the accuracy， extraction recovery， matrix effect， and stability all met the acceptance criteria for bioanalytical method validation. The concentration result of bepotastine and hydroxychloroquine in the breast milk of the lactating patient showed， after 2 h and 14 h， the concentrations of bepotastine in the breast milk of the patient were 34.95 ng/mL and 5.72 ng/mL； those of hydroxychloroquine were 211.92 ng/mL and 104.18 ng/mL， respectively. The relative infant doses were 1.83% and 0.56%， respectively. CONCLUSIONS The established method is simple， rapid， and sensitive. It is suitable for simultaneous determination of bepotastine and hydroxychloroquine concentrations in human milk and can provide reference for safe drug use during lactation.