Incidência de obstrução em cateteres periféricos intravenosos em adultos e fatores relacionados / Incidence of obstruction in peripheral intravenous catheters in adults and related factors / Incidencia de obstrucción en catéteres intravenosos periféricos en adultos y factores relacionados

Objetivo: analisar a incidência e os fatores relacionados à obstrução de cateter intravenoso periférico em adultos hospitalizados. Método: uma coorte prospectiva, realizada a partir da observação de 203 cateteres, entre fevereiro de 2019 e maio de 2020, em hospital público e de ensino brasileiro. Foram consideradas variáveis clínicas e do cateter. Os dados foram analisados descritivamente e por estatística inferencial. Resultados: o tempo de permanência variou entre um a 15 dias e a obstrução ocorreu em 7,5% das observações. Houve aumento do risco de obstrução em relação ao sexo (RR=0,49 / p=0,186), à idade (RR=1,20/ p=0,732), aos cateteres de maior calibre (RR=0,53/ p=0,250), à inserção no dorso da mão até antebraço (RR=2,33/ p=0,114) e ao tempo do cateter in situ (RR=033/ p=0,433). Conclusão: O cuidado diário e observação do cateter intravenoso periférico são importantes para minimizar o surgimento de complicações locais e sistêmicas e manter a patência do dispositivo.

Objective: to analyze the incidence and factors related to peripheral intravenous catheter obstruction in hospitalized adults. Method: a prospective cohort, based on the observation of 203 catheters, between February 2019 and May 2020, in a Brazilian public teaching hospital. Clinical and catheter variables were taken into account. The data was analyzed descriptively and using inferential statistics. Results: the length of stay ranged from one to 15 days and obstruction occurred in 7.5% of the observations. There was an increased obstruction risk in relation to gender (RR=0.49 / p=0.186), age (RR=1.20/ p=0.732), larger catheters (RR=0.53/ p=0.250), insertion in the back of the hand up to the forearm (RR=2.33/ p=0.114) and the time length the catheter was in situ (RR=033/ p=0.433). Conclusion: Daily care and observation of the peripheral intravenous catheter is important to minimize the appearance of local and systemic complications and maintain the patency of the device.

Objetivo: analizar la incidencia y los factores relacionados con la obstrucción del catéter intravenoso periférico en adultos hospitalizados. Método: cohorte prospectiva, realizada mediante la observación de 203 catéteres, entre febrero de 2019 y mayo de 2020, en un hospital escuela público brasileño. Se consideraron variables clínicas y del catéter. Los datos se analizaron de forma descriptiva y mediante estadística inferencial. Resultados: el tiempo de permanencia varió entre uno y 15 días y la obstrucción ocurrió en el 7,5% de las observaciones. Hubo mayor riesgo de obstrucción en relación con el sexo (RR=0,49 / p=0,186), la edad (RR=1,20 / p=0,732), los catéteres de mayor calibre (RR=0,53 / p= 0,250), la inserción en el dorso de la mano hasta el antebrazo (RR=2,33/ p=0,114) y el tiempo del catéter in situ (RR=033/ p=0,433). Conclusión: el cuidado diario y la observación del catéter intravenoso periférico son importantes para minimizar la aparición de complicaciones locales y sistémicas y mantener la permeabilidad del dispositivo.

Mental health difficulties and related factors in Chinese children and adolescents during the COVID-19 pandemic: a cross-sectional study

Abstract Objective: To examine the mental health status and related factors in children and adolescents, and to assess age groups and sexes differences in factors influencing mental health. Methods: This cross-sectional study was performed on Chinese children aged 6-18 years from November 2021 to January 2022. Mental health difficulties were accessed by the Strengths and Difficulties Questionnaire. Multivariate logistic regression was used to analyze factors associated with mental health status. Multiple linear regression was used to evaluate factors associated with the scores of the Strengths and Difficulties Questionnaire. Results: The prevalence of mental health difficulties was 12.98% (n =1348). Age (OR, 0.909, [95%CI, 0.830-0.996]), sex (OR, 1.424, [95%CI, 1.033-1.963]) and screen time on weekdays ("≥2" h/d vs "< 1" h/d: OR, 2.001, [95%CI, 1.300-3.080]) were related factors for mental health difficulties. For children (year ≤ 12), the strongest related factor for mental health difficulties was screen time on weekdays ("≥ 2" h/d vs "< 1" h/d: OR, 1.821 [95%CI, 1.203-2.755]). The risk of mental health difficulties in females with ≥ 2 h/d screen time on weekends was 3.420 times higher than those with < 1 h/d (OR, 3.420, [95%CI, 1.923-6.081]). Conclusion: The prevalence of mental health difficulties among children and adolescents was relatively high. The lower age, female sex and excessive screen time were associated with a higher risk of mental health difficulties. The factors influencing mental health varied by different age groups and sexes. Thus, specific measures for different age groups and sexes should be adopted to mitigate the impact.

Desempenho da atenção primária à saúde no estado de São Paulo, Brasil, no período de 2010-2019 / Performance of primary health care in São Paulo state, Brazil, during the period 2010-2019

Resumo O artigo apresenta uma análise do desempenho da APS no estado de São Paulo na última década, em contexto de crise econômica e retração dos investimentos em saúde. Utilizaram-se indicadores de desempenho, determinantes em saúde e sistema de saúde, em série temporal (2010 a 2019), a partir de matriz conceitual adaptada. Foram calculadas variações percentuais anuais (VPA) de cada indicador em modelo log-linear. Os indicadores de desempenho apresentaram, no geral, evolução favorável; no entanto, ocorreu piora em indicadores relacionados à qualidade do cuidado (sífilis congênita, partos cesáreos e rastreamento de câncer de colo uterino). Verificou-se, ainda, um potencial aumento das demandas ao SUS (envelhecimento da população e redução da cobertura da saúde suplementar) e aumento das despesas em saúde em contexto de redução do PIB per capita.

Abstract This article presents the results of an analysis of the performance of primary health care in São Paulo state over the last decade against a backdrop of financial crisis and health funding cuts. We conducted a time series analysis (2010-2019) of performance indicators across the following dimensions based on an adapted conceptual framework: health service performance, health system, and determinants of health. Annual percentage change was calculated for each indicator using a log-linear model. Performance across the indicators was generally positive; however, there was a decline in performance across indicators of quality of care (congenital syphilis, cesarean section rate and cervical cancer screening). The findings also show a potential rise in demand for public services (due to population aging and a reduction in the percentage of the population with private health insurance) and increase in health expenditure against a backdrop of falling GDP per capita.

Influence of non-pharmacological methods on duration of labor: a systematic review / A influência de métodos não farmacológicos na duração do parto: uma revisão sistemática

Abstract The article aims to verify the influence of MNFs on the duration of the birth process. A systematic review was carried out in the MEDLINE, Web of Science and LILACS databases, through a combination of terms that cover the topic addressed, from 1996 to 2021/April. The Excel spreadsheet was used to collect data to extract information regarding each selected article, in turn, data analysis included the evaluation and classification of quality, reliability and risk of bias, thus, the following tools were used: Cochrane RoB 2, Checklist and Newcastle-Ottawa Scale. Warm bath, walking, exercises with a birthing ball, breathing techniques, supine position, acupuncture, acupressure and water birth reduced labor time. While spontaneous pushing, massage and immersion baths prolonged labor. Non-pharmacological methods capable of reducing the duration of labor were hot/warm shower, walking, birth ball exercises, breathing techniques, maternal mobility, dorsal position, acupuncture, acupressure and water birth, as well. associated applied techniques such as hot/warm bath, ball exercises and lumbosacral massage, as well as immersion bath, ball exercises, aromatherapy, vertical postures and maternal mobility with alternating vertical postures, shortened the birth time.

Resumo O objetivo do artigo é verificar a influência dos MNFs na duração do processo de parto. Realizou-se uma revisão sistemática nas bases de dados MEDLINE, Web of Science e LILACS, por meio da combinação de termos que contemple a temática abordada, no período de 1996 a 2021/abril. Utilizou-se para coleta de dados a planilha Excel para extração de informações referentes a cada artigo selecionado, por sua vez, a análise dos dados compreendeu a avaliação e classificação da qualidade, confiabilidade e risco de viés, assim, utilizou-se como ferramentas: Cochrane RoB 2, Checklist e Escala de Newcastle-Ottawa. Reduziram o tempo de trabalho de parto banho morno, caminhada, exercícios com bola de parto, técnicas respiratórias, decúbito dorsal, acupuntura, acupressão e parto na água. Enquanto empurrões espontâneos, massagem e banho de imersão prolongaram o trabalho de parto. Os métodos não farmacológicos capazes de reduzir a duração do trabalho de parto foram banho de chuveiro quente/morno, caminhada, exercícios com bola de parto, técnicas de respiração, mobilidade materna, posição dorsal, acupuntura, acupressão e parto na água, também encurtaram o tempo de parto técnicas aplicadas associadas como banho quente/morno, exercícios com bola e massagem lombossacral, assim como banho de imersão, exercícios com bola, aromaterapia, posturas verticais e mobilidade materna com posturas verticais alternadas.

Time trends of avoidable deaths in Brazil, 1996 to 2019

Introduction: The known achievements of the Brazilian Unified Health System (SUS) stand out in an adverse context. This makes it necessary to examine the effect of the SUS on the population's health, using indicators such as deaths by avoidable causes. Objective: To describe the time trends of mortality from avoidable causes in Brazil and to compare them to those of non-avoidable causes. Methods: Ecological time-series study with official mortality data, during years 1996-2019, in the age group 5-74 years. Time trends in mortality were estimated as the annual percent reduction in mortality rates, and the impact of the SUS was calculated as the difference in trend between avoidable (immunopreventable, infectious and noncommunicable diseases, maternal and external causes) and non-avoidable causes. The analyses consisted of multivariable binomial regression models, by quadrennium. Results: Death rates for each avoidability group remained stable or declined throughout the study period. The probability of a positive impact was greater than 90% for immunopreventable diseases throughout the study period; infectious diseases in 1996-2003 and 2016-2019; noncommunicable diseases in 1996-2003 and 2008-2019; maternal causes in 1996-1999; and external causes in 1996-2007. This probability was less than 10% for maternal deaths in 2016-2019; and external causes in 2008-2015. Conclusion: The SUS has had a positive impact in reducing deaths from immunopreventable, infectious and noncommunicable diseases in Brazil, although not so much for maternal and external causes.

Prevalência de Influenza A, vírus sincicial respiratório eSARS-CoV-2 em pacientes com síndrome respiratóriaaguda grave em Passo Fundo, Rio Grande do Sul / Prevalence of Influenza A, respiratory syncytial virus andSARS-CoV-2 in patients with severe acute respiratorysyndrome in Passo Fundo, Rio Grande do Sul

A síndrome respiratória aguda grave (SRAG) é caracterizada por sintomas de febre alta, tosse e dispneia, e, na maioria dos casos, relacionada a uma quantidade reduzida de agentes infecciosos. O objetivo foi avaliar a prevalência dos vírus respiratórios Influenza A (FluA), vírus sincicial respiratório (RSV) e do novo coronavírus (SARS-CoV-2) em pacientes com internação hospitalar por SRAG. Estudo transversal, com pacientes em internação hospitalar com SRAG entre novembro de 2021 e maio de 2022. Dados sociodemográficos e clínicos e amostras da nasofaringe foram coletados/as, as quais foram submetidas à extração de RNA e testadas quanto à positividade para Influenza A, RSV e SARS-CoV-2 por meio da técnica de PCR em tempo real pelo método SYBR Green. Foram incluídos 42 pacientes, sendo 59,5% do sexo feminino, 57,1% idosos, 54,8% com ensino fundamental. A maior parte dos pacientes reportou hábito tabagista prévio ou atual (54,8%), não etilista (73,8%) e 83,3% deles apresentavam alguma comorbidade, sendo hipertensão arterial sistêmica e diabetes mellitus tipo 2 as mais prevalentes. Um total de 10,5% dos pacientes testou positivo para FluA, nenhuma amostra positiva para RSV e 76,3% positivos para SARS-CoV-2. Na população estudada, SRAG com agravo hospitalar foi observado em maior proporção, em mulheres, idosos e pessoas com comorbidades, embora sem significância estatística, sendo o novo coronavírus o agente etiológico mais relacionado, o que evidencia a patogenicidade desse agente e suas consequências ainda são evidentes após quase 2 anos de período pandêmico.

Severe acute respiratory syndrome (SARS) is characterized by symptoms of high fever, cough and dyspnea, and is in most cases related to a reduced amount of infectious agents. The objective was to assess the prevalence of respiratory viruses Influenza A (FluA), respiratory syncytial virus (RSV) and the new coronavirus (SARS-CoV-2) in patients hospitalized for SARS. Cross-sectional study, with patients hospitalized with SARS between November 2021 and May 2022. Sociodemographic and clinical data and nasopharyngeal samples were collected, which were subjected to RNA extraction and tested for positivity for Influenza A, RSV and SARS-CoV-2 using the real-time PCR technique using the SYBR Green method. 42 patients were included, 59.5% female, 57.1% elderly, 54.8% with primary education. Most patients reported previous or current smoking habits (54.8%), non-drinkers (73.8) and 83.3% of them had some comorbidity, with systemic arterial hypertension and type 2 diabetes mellitus being the most prevalent. A total of 10.5% of patients tested positive for FluA, no samples positive for RSV, and 76.3% positive for SARS-CoV-2. In the studied population, SARS with hospital injury was observed more frequently in women and the elderly, with associated comorbidities, with the new coronavirus being the most related etiological agent, which shows, although not statistically significant, that the pathogenicity of this agent and its consequences are still evident after almost 2 years of period pandemic.

Utilización de los medios de comunicación y actitudes frente a las pantallas en niños de 36-72 meses: estudio descriptivo transversal / Media use and attitudes towards screens in children aged 36-72 months; a cross-sectional, descriptive study

Introducción. La edad en que los niños son introducidos a los dispositivos de comunicación es cada vez más temprana. Las investigaciones sobre los hábitos relacionados con ellos, en niños pequeños, son importantes. El objetivo de este estudio fue describir los hábitos sobre el uso de dispositivos mediáticos (edad de comienzo, tiempo frente a las pantallas, preferencias populares) de niños preescolares y explorar la relación con las características familiares. Población y métodos. Estudio descriptivo transversal: Los padres de niños de 36-72 meses que asistían a los centros de cuidado infantil en Kayseri, una ciudad central de Anatolia, Turquía, completaron un cuestionario sobre los hábitos familiares y de los niños, relacionados con los medios de comunicación. Resultados. Se incluyeron 858 cuestionarios. El 28 % de los niños utilizaban pantallas por más de 2 h/día; el 36 % fueron introducidos a los dispositivos de comunicación antes de los 2 años de edad. La televisión fue el dispositivo más usado (95 %), y los dibujos animados, el programa elegido en el 86,7 %. Los hijos de padres con educación superior tuvieron menos tiempo de pantallas frente a la televisión, la computadora o el teléfono móvil (p = 0,012; p = 0,007; p <0,01 para la madre y p = 0,049; p = 0,032; p = 0,04 para el padre respectivamente). La introducción de libros en los primeros 6 meses de edad se asoció con menor tiempo diario frente a las pantallas (p = 0,011; p = 0,009; p = 0,002 para televisión, computadora y teléfono móvil, respectivamente). El tiempo de los padres frente a la televisión se correlacionó positivamente con el de los niños (p <0,05; r: 0,354). Conclusión. El nivel de educación de los padres, el tiempo que ellos dedican a las pantallas y la introducción de libros en etapas tempranas se relacionaron con los hábitos de los niños frente a los dispositivos mediáticos. Se necesitan estudios amplios para explicar esta relación con mayor claridad.

Introduction: The age at which children are introduced to media devices is becoming increasingly earlier. Studies regarding the media habits of young children have gained importance. The aim of the study was to describe the screen media habits (age of introduction media, time spend with screen, popular choices) of preschool children and to explore their relationship with household characteristics. Population and methods: Cross-sectional descriptive study; the parents of children aged 36-72 months who attended childcare centers in Kayseri, a central Anatolian city in Türkiye, completed a questionnaire on media habits of families and children. Results: There were 858 questionaires included. The proportion of children using screen media more than 2 h/day was 28%; 36% of children were introduced to media devices before the age of two. The most frequently used media tool was television (95%) and the program watched was cartoons for TV (86.7%). Children of highly educated parents had shorter TV, computer and smartphone screen time (p = 0.012, p = 0.007, p <0.01 for mother and p = 0.049, p = 0.032, p = 0.04 for father respectively). Introducing books in the first 6 months was associated with shorter daily screen time (p = 0.011, p = 0.009, p = 0.002 for TV, computer and smartphone ,respectively). Parent's time spent on TV was positively correlated with children's time spent on TV (p <0.05, r = 0.354). Conclusion: Parents' education levels, parents' screen time and introducing book in early age was related to children's media habits. Comprehensive studies are needed to explain this relationship more clearly.

Morbidity trend and space-time clusters of COVID-19 occurrence in children and adolescents

Abstract Objective: To analyze the morbidity trend and space-time distribution clusters of confirmed COVID-19 cases in children and adolescents. Method: An ecological study of COVID-19 cases confirmed in the Information System from 2020 to 2022 in the age group from 0 to 19 years old, residents in Mato Grosso municipalities, Brazilian Midwest region. A trend analysis of the monthly morbidity rate of cases/100,000 inhabitants was used, following Prais-Winsten's regression. A space-time distribution of the Bayesian incidence rate per 100,000 inhabitants was performed, in addition to a space-time scan to identify high-risk clusters. Results: Of all 79,592 COVID-19 cases studied, 51.6% were in females and 44.21% in people aged 15-19 years old. The mean monthly rate was 265.87 cases per 100,000 inhabitants, with a stationary trend in the period analyzed (Monthly Percentage Variation [MPV]) = 12.15; CI95%[MPV]: -0.73;26.70). The morbidity rate due to COVID-19 was higher in the female gender (283.14/ 100,000 inhabitants) and in the age group from 15 to 19 years old (485.90/100,000 inhabitants). An increasing trend was observed with a greater monthly time variation of 14.42% (CI95%[MPV]: 1.28;29.28)] among those aged from 10 to 14 years old. The primary cluster, which was also the one with the highest Relative Risk (RR = 5,16, p-value = 0.001), included 19 municipalities located in the North health macro-region. Conclusion: The findings indicated a monthly stationary trend in the study population, an increase in the age group from 10 to 14 years old, and areas at a higher risk for the disease in the North health macro-region of the state.

Análisis de los tiempos críticos en diagnóstico y tratamiento de Cáncer de Cabeza y Cuello en Complejo Asistencial Sótero del Río

Introducción: El cáncer de cabeza y cuello (CaCyC) representa una alta carga de enfermedad. El retraso del inicio de tratamiento es un factor predictor independiente de mortalidad. Objetivo: Describir los tiempos entre hitos claves diagnósticos y terapéuticos de pacientes con CaCyC atendidos en Hospital Sótero del Río (CASR) y comparar la experiencia local con guías internacionales. Material y Método: Estudio descriptivo-retrospectivo de pacientes presentados en Comité Oncológico de cabeza y cuello (COCYC) del CASR desde septiembre 2020 hasta julio 2022. Se analizan los tiempos críticos del proceso diagnóstico y terapéutico. Resultados: 78 pacientes se seleccionan, 75,5% con carcinoma escamoso. La mediana de tiempos entre derivación desde atención primaria (APS) y evaluación CASR es 2 días, entre evaluación y biopsia es 9 días, y entre diagnóstico histológico e inicio de tratamiento en cualquier modalidad de 27 días. Se comparan los tiempos críticos según los plazos definidos por el Cancer Council Australia. Las tasas de cumplimiento entre derivación APS y evaluación CASR es 67%. Según el tratamiento recibido, la tasa de cumplimiento desde el ingreso al inicio de tratamiento es 70% para cirugía exclusiva, 0% para inicio de radioterapia, y 20% para radioquimioterapia. Para cirugía y radioterapia adyuvante, la tasa es 67% entre evaluación y cirugía, y 6% entre cirugía y radioterapia. Conclusión: Se describen los tiempos entre hitos claves diagnósticos y terapéuticos. Los tiempos de derivación desde APS e inicio de terapias quirúrgicas son comparables a la literatura internacional, pero los tiempos en inicio de radioterapia son mejorables.

Introduction: Head and neck cancer (H&NCa) represents a high burden of disease. Delay in starting treatment is an independent predictor of mortality. Objective: To describe the times between the key diagnostic and therapeutic milestones of patients with H&NCa treated at the Hospital Sótero del Río (CASR) and compare the local experience with international guidelines. Material and Method: descriptive-retrospective study of patients presented to the Head and Neck Oncology Committee (H&NOCO) of the CASR from September 2020 to July 2022. The critical times of the diagnostic and therapeutic process are analyzed. Results: 78 patients are selected, 75.5% with squamous cell carcinoma. The median time between referral from primary care (PC) and CASR evaluation is 2 days, between evaluation and biopsy is 9 days, and between histological diagnosis and initiation of treatment in any modality is 27 days. Critical times are compared according to the deadlines defined by Cancer Council Australia. Compliance rates between PC referral and CASR admission is 67%. Depending on the treatment received, the compliance rate from admission to the start of treatment is 70% for exclusive surgery, 0% for the start of radiotherapy, and 20% for radiochemotherapy. For surgery and adjuvant radiotherapy, the rate is 67% between evaluation and surgery, and 6% between surgery and radiotherapy. Conclusion: Waiting times between key diagnostic and therapeutic process are described. The times of referral from PC and start of surgical therapies are comparable to the international literature. However, times regarding the start radiotherapy can be improved.

Transcriptomic Analysis of Wuzi Yanzongwan on Testicular Spermatogenic Function in Semi-castrated Male Mice / 中国实验方剂学杂志

ObjectiveTo screen out the transcriptomes related to the intervention of Wuzi Yanzongwan on the spermatogenic function of semi-castrated male mice， and to explore its potential mechanism in the intervention of the progress of low spermatogenic function. MethodBalb/c mice were randomly divided into sham-operated group， model group， testosterone propionate group（0.2 mg·kg-1·d-1， intramuscular injection） and Wuzi Yanzongwan group（1.56 g·kg-1·d-1， intragastric administration） according to body weight， with 12 mice in each group. The right testicle and epididymis were extracted from the model group and the drug administration group to construct the semi-castrated model of low spermatogenic function， while the fur and the right scrotum of the sham-operated group were only cut and immediately sterilized and sutured. At the end of the intervention， hematoxylin-eosin（HE） staining was used to observe the histopathology of testis， enzyme-linked immunosorbent assay（ELISA） was used to detect the levels of serum testosterone（T）， luteinizing hormone（LH） and follicle stimulating hormone（FSH）. The sperm count and motility of epididymis were measured by automatic sperm detector of small animal. Transcriptomic microarray technology was used to detect the mRNA expression level of testicular tissue in each group， the transcriptome of genes related to the regulation of Wuzi Yanzongwan was screened， and three mRNAs were selected for Real-time fluorescence quantitative polymerase chain reaction（Real-time PCR） to verify the transcriptome data. Through the annotation analysis of Gene Ontology（GO） and the signaling pathway analysis of Kyoto Encyclopedia of Genes and Genomes（KEGG）， the related functions of drugs regulating transcriptome were analyzed. ResultCompared with the sham-operated group， the testicular tissue of mice in the model group showed spermatogenic injury， contraction and vacuolization of the seminiferous tubules， reduction of spermatogenic cells at all levels， widening of the interstitial space， obstruction of spermatogonial cell development and other morphological abnormalities， and serum T significantly decreased， LH significantly increased（P<0.01）， and FSH elevated but no statistically significant difference， the count and vitality of epididymal sperm significantly decreased（P<0.01）. There were 882 differentially expressed mRNAs in the testicular tissues， of which 565 were up-regulated and 317 were down-regulated. Cluster analysis showed that these differentially expressed mRNA could effectively distinguish between the sham-operated group and the model group. Compared with the model group， the damage to testicular tissue in the Wuzi Yanzongwan group was reduced， the structure of the seminiferous tubules was intact， vacuolization was reduced， and the number of spermatogenic cells at all levels was significantly increased and arranged tightly. The serum T significantly increased， LH significantly decreased（P<0.01）， and FSH decreased but the difference was not statistically significant. The count and vitality of sperm in the epididymis were significantly increased（P<0.01）. Moreover， Wuzi Yanzongwan could regulate 159 mRNA levels in the testes of semi-castrated mice， of which 32 were up-regulated and 127 were down-regulated， and the data of the transcriptome assay was verified to be reliable by Real-time PCR. GO and KEGG analysis showed that the transcriptome functions regulated by Wuzi Yanzongwan were involved in the whole cell cycle process of sperm development such as sex hormone production of interstitial cells in testis， renewal， differentiation， metabolism， apoptosis and signal transduction of spermatogenic cells， and were closely related to the biological behaviors of signaling pathways such as spermatogenic stem cell function， endoplasmic reticulum protein processing and metabolic program. ConclusionWuzi Yanzongwan can effectively improve the low spermatogenic function of semi-castrated male mice， and its mechanism may be related to the regulation of testicular transcriptional regulatory network， the synthesis of sex hormones in testicular interstitial cells， the function of spermatogenic stem cells， the whole cell cycle process of spermatogenesis， as well as the expression of endoplasmic reticulum protein processing and metabolic program related genes transcription.

Analysis on Quality of Sojae Semen Praeparatum Based on Traditional Quality Evaluation / 中国实验方剂学杂志

ObjectiveBased on the quality evaluation experience of "it is better to have a fragrant and strong aroma" summarized by materia medica of past dynasties， the chemical components of Sojae Semen Nigrum（SSN） and Sojae Semen Praeparatum（SSP） were systematically compared and analyzed， and the main fermentation products in different fermentation time were quantitatively analyzed， so as to clarify the transformation law of internal components in the processing process and provide scientific basis for the modern quality control of SSP. MethodUltra performance liquid chromatography-quadrupole tandem time-of-flight mass spectrometry（UPLC-Q-TOF-MS） was used for the structural identification of the chemical constituents of SSN and SSP， and with the aid of Progenesis QI v2.3 software， the negative ion mode was employed for principal component analysis（PCA） pattern recognition， and the data were analyzed with the aid of orthogonal partial least squares-discriminant analysis（OPLS-DA） for two-dimensional data to obtain S-plot， and components with |P|>0.1 were selected as the differential constituents. The contents of isoflavonoids in SSP during fermentation was determined by UPLC， and the samples were taken every 8 h in the pre-fermentation period and every 2 d in the post-fermentation period， and the dynamic changes of isoflavonoid contents in different fermentation stages were analyzed. The contents of amino acids and nucleosides in SSP and SSN from different fermentation stages were quantitatively analyzed by phenyl isothiocyanate（PITC） pre-column derivatization and high performance liquid chromatography（HPLC） gradient elution， and the contribution of flavor substances to the "delicious" taste of SSP was discussed by taste intensity value（TAV）. ResultA total of 19 kinds of differential components were screened out， mainly soybean saponins and isoflavones， and their contents decreased significantly or even disappeared after fermentation. In the pre-fermentation process of SSP， glycoside bond hydrolysis mainly occurred， and isoflavone glycosides in SSN were degraded and converted into the corresponding aglycones， the content of flavor substances such as amino acids increased gradually. In the post-fermentation process， protein degradation mainly occurred， after 8 d of post-fermentation， the content of isoflavones was basically stable， while the total content of amino acids increased by 8-40 times on average. Different amino acids form the special flavor of SSP， such as the TAV of glutamate is always ahead of other flavor substances， and sweet substances such as alanine and valine have made relatively great contributions to SSP. ConclusionBased on the law of constituent transformation， combined with the traditional evaluation index of "fragrant and strong"， it is difficult to control the fermentation degree of SSP by the existing standards in the 2020 edition of Chinese Pharmacopoeia. It is suggested that description of the characteristics of SSP be refined and changed to "fragrant， delicious and slightly sweet"， and at the same time， the post-fermentation index compounds such as glutamic acid， alanine and valine should be added as the quality control indicators of SSP， so as to standardize the production process and improve the quality of SSP.

Association between temperature and mortality: a multi-city time series study in Sichuan Basin, southwest China

BACKGROUND@#There are few multi-city studies on the association between temperature and mortality in basin climates. This study was based on the Sichuan Basin in southwest China to assess the association of basin temperature with non-accidental mortality in the population and with the temperature-related mortality burden.@*METHODS@#Daily mortality data, meteorological and air pollution data were collected for four cities in the Sichuan Basin of southwest China. We used a two-stage time-series analysis to quantify the association between temperature and non-accidental mortality in each city, and a multivariate meta-analysis was performed to obtain the overall cumulative risk. The attributable fractions (AFs) were calculated to access the mortality burden attributable to non-optimal temperature. Additionally, we performed a stratified analyses by gender, age group, education level, and marital status.@*RESULTS@#A total of 751,930 non-accidental deaths were collected in our study. Overall, 10.16% of non-accidental deaths could be attributed to non-optimal temperatures. A majority of temperature-related non-accidental deaths were caused by low temperature, accounting for 9.10% (95% eCI: 5.50%, 12.19%), and heat effects accounted for only 1.06% (95% eCI: 0.76%, 1.33%). The mortality burden attributable to non-optimal temperatures was higher among those under 65 years old, females, those with a low education level, and those with an alternative marriage status.@*CONCLUSIONS@#Our study suggested that a significant association between non-optimal temperature and non-accidental mortality. Those under 65 years old, females, and those with a low educational level or alternative marriage status had the highest attributable burden.

Exploration of cross-cultivar group characteristics of a new cultivar of Prunus mume 'Zhizhang Guhong Chongcui' / 生物工程学报

'Zhizhang Guhong Chongcui' is a new cultivar of Prunus mume with cross-cultivar group characteristics. It has typical characteristics of cinnabar purple cultivar group and green calyx cultivar group. It has green calyx, white flower, and light purple xylem, but the mechanism remains unclear. In order to clarify the causes of its cross-cultivar group traits, the color phenotype, anthocyanin content and the expression levels of genes related to anthocyanin synthesis pathway of 'Zhizhang Guhong Chongcui', 'Yuxi Zhusha' and 'Yuxi Bian Lü'e' were determined. It was found that the red degree of petals, sepals and fresh xylem in branches was positively correlated with the total anthocyanin content. MYBɑ1, MYB1, and bHLH3 were the key transcription factor genes that affected the redness of the three cultivars of flowers and xylem. The transcription factors further promoted the high expression of structural genes F3'H, DFR, ANS and UFGT, thereby promoting the production of red traits. Combined with phenotype, anthocyanin content and qRT-PCR results, it was speculated that the white color of petals of 'Zhizhang Guhong Chongcui' were derived from the high expression of FLS, F3'5'H, LAR and ANR genes in other branches of cyanidin synthesis pathway, and the low expression of GST gene. The green color of sepals might be originated from the relatively low expression of F3'H, DFR and ANS genes. The red color of xylem might be derived from the high expression of ANS and UFGT genes. This study made a preliminary explanation for the characteristics of the cross-cultivar group of 'Zhizhang Guhong Chongcui', and provided a reference for molecular breeding of flower color and xylem color of Prunus mume.

Effects of prolonged waiting time on visual outcomes of patients with pediatric cataract in a Tertiary Public Hospital

Background@#Pediatric cataract is one of the most common preventable cause of childhood blindness worldwide. Early and timely intervention of pediatric cataract is important to maximize the visual outcomes and start prompt visual rehabilitation.@*Objectives@#This study aimed to determine the average time from the day of initial consult at the outpatient clinic to the day of the cataract surgery and compare the effects of delayed surgery on visual outcomes of patients.@*Methods@#This is a retrospective chart review of medical records from January 2015 to June 2022. The dates of the different steps in the process up to the day of intervention were noted and the average interval duration and the total waiting time were determined. Patients operated on within 2 weeks from initial consult was defined as no delay while those operated >2 weeks had delayed surgery. Pre-operative and post-operative best corrected log MAR visual acuity were compared within each group to determine if delay in surgical intervention has a significant effect on the visual outcomes of patients.@*Results@#Median age at initial consult was 4.9 years while median age at surgery was 5.2 years. Ninety-nine (99) patients had developmental cataract and 123 patients had bilateral cataract. Leukocoria was the most common chief complaint (63.45%). Pre-operatively, 94 patients had strabismus, 49 had eye preference, 48 had nystagmus, and 43 had amblyopia in the diagnosis. There was significantly faster admission to cataract surgery during the pandemic compared to pre-pandemic period but there was no difference in the total waiting time. Patients with congenital cataract had the least total waiting time followed by developmental, and rubella cataract. There is no significant difference in visual outcomes between patients operated without delay and with delay.@*Conclusion@#There is delayed age at diagnosis and surgery of pediatric cataract patients in the Philippine General Hospital. Early surgery did not reflect better visual outcomes compared to delayed surgery probably due to delay in consultation of patients.

Qualitative and Quantitative Analysis of Chemical Constituents in Liu Junzitang by UPLC-Q-TOF-MS/MS and UPLC / 中国实验方剂学杂志

ObjectiveTo establish a qualitative and quantitative analysis method for chemical constituents in Liu Junzitang（LJZT）， and to clarify its material basis. MethodThe chemical constituents in LJZT were analyzed by ultra performance liquid chromatography-quadrupole-time-of-flight mass spectrometry（UPLC-Q-TOF-MS/MS）， and the resulting compounds were identified by using databases， such as MassBank， PubChem， ChemSpider， Traditional Chinese Medicine Systems Pharmacology Database and Analytical Platform（TCMSP）， and by combining with relevant literature. UPLC was used to establish a quantitative method for analysis of 9 compounds in LJZT， including liquiritin， hesperidin， lobetyolin， liquiritigenin， glycyrrhizic acid， nobiletin， tangeretin， atractylenolide Ⅱ and Ⅰ. ResultBy combining the relevant literature， database and MS information， a total of 79 compounds were identified from LJZT， including 31 flavonoids， 15 terpenoids， 14 nitrogen-containing compounds， 6 phenylpropanoids， 6 organic acids and 7 other compounds. The established quantitative analytical method for the nine representative components showed good linearity within their respective linear ranges， and the precision， stability， reproducibility and recovery were in accordance with the requirements. The quantitative results showed that the contents of liquiritin， hesperidin， lobetyolin， liquiritigenin， glycyrrhizic acid， nobiletin， tangeretin， atractylenolide Ⅱ and Ⅰ in LJZT were 0.376 5， 2.602 1， 0.082 6， 0.128 1， 1.778 6， 0.015 7， 0.006 7， 0.030 4， 0.003 2 mg·g-1， respectively. ConclusionThe established method can quickly， sensitively and accurately analyze the chemical constituents in LJZT， clarify that the material basis of LJZT is mainly flavonoids， terpenoids and nitrogen-containing compounds， and simultaneously determine the contents of the 9 components， which can lay a foundation for the research on quality control， mechanism and clinical application of LJZT.

Evaluation of A Liver Yin Deficiency Mouse Model Based on Untargeted Metabolomics / 中国实验方剂学杂志

ObjectiveBased on ultra performance liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry（UPLC-Q-TOF-MS）， to evaluate the establishment of a mouse model of liver Yin deficiency by thyroid tablet suspension combined with 10% carbon tetrachloride（CCl4） from the perspective of non-targeted metabolomics， in order to lay the foundation for the establishment of a traditional Chinese medicine（TCM） syndrome model. MethodA total of 24 mice were randomly divided into blank group and model group. The model group was given thyroid tablet suspension（0.003 2 g·kg-1） by gavage for 14 consecutive days， and 10% CCl4（5 mL·kg-1） was intraperitoneally injected once a week to establish a liver Yin deficiency model， while the blank group was injected with an equal amount of olive oil intraperitoneally and gavaged with an equal amount of distilled water， and was fed with normal feed. After the modeling was completed， 6 mice in each group were randomly selected， the levels of alanine aminotransferase（ALT）， aspartate aminotransferase（AST）， cyclic adenosine monophosphate（cAMP）， cyclic guanosine monophosphate（cGMP）， interleukin（IL）-6， IL-10， tumor necrosis factor-α（TNF-α）were measured in the mice serum， and malondialdehyde（MDA）， superoxide dismutase（SOD）， total protein（TP）， hydroxyproline（HYP） and other indicators were measured in the mice liver. Liver tissue sections were taken for hematoxylin-eosin（HE） staining and observing pathological changes. The remaining 6 mice in each group were subjected to UPLC-Q-TOF-MS combined with principal component analysis（PCA） and orthogonal partial least squares-discriminant analysis（OPLS-DA） were used to screen differential metabolites in the liver Yin deficiency mouse model， Kyoto Encyclopedia of Genes and Genomes（KEGG） database was used to analyze the corresponding metabolic pathways of differential metabolites. ResultCompared with the blank group， mice in the model group showed liver Yin deficiency manifestations such as reduced body weight， fatigue and sleepiness， disheveled and lusterless hair， irritability. The levels of ALT， cAMP/cGMP， IL-6， AST， MDA， cAMP， TNF-α significantly increased（P<0.05， P<0.01）， while the levels of SOD， IL-10 and cGMP significantly decreased（P<0.05， P<0.01）， and the changes of HYP and TP were not statistically significant. Hepatic steatosis and distortion of the radial arrangement of the liver plate cells were seen in the section images of the model group， endogenous substances were clearly separated， and 252 differential metabolites were identified in the serum samples， which were mainly involved in the metabolic pathways of purine metabolism， steroid hormone biosynthesis and pyrimidine metabolism. A total of 229 differential metabolites were identified in the liver samples， mainly involving nucleotide metabolism， purine metabolism， steroid hormone biosynthesis， pyrimidine metabolism， antifolate resistance， insulin resistance， primary bile acid biosynthesis， prostate cancer， sulfur relay system， arachidonic acid metabolism and other metabolic pathways. ConclusionThe successful establishment of liver Yin deficiency model in mice by CCl4 combined with thyroid hormone is evaluated through the investigation of serum and liver metabolomics， combined with biochemical indicators， which provides a biological basis and experimental foundation for the Yin deficiency syndrome model of TCM.

Establishment and verification of a real-time quantitative PCR method for determination of exogenous antibody gene copy number in CHO cells / 中国生物制品学杂志

@#Objective To establish a real-time quantitative PCR method using SYBR GreenⅠto detect the copy numbers of light chain(LC)and heavy chain(HC)of exogenous antibody gene in CHO cells,and verify and preliminarily apply this method.Methods With the B2m(β2-microglobulin)expressed stably in CHO cells as the internal reference gene,suitable primers of LC,HC genes and internal reference gene were designed respectively,and the reaction system and program of the real-time quantitative PCR method were determined. The established method was verified for the specificity,linearity,precision and durability,and used to detect the copy numbers of LC and HC genes in the recombinant cell lines of working cell bank(WCB)and cells of different passages.Results The primers of exogenous genes and internal reference gene showed specific binding to the target fragments;The efficiency of primer amplification for the B2m gene,LC gene,and HC gene was 106. 7%,106. 3% and 99. 1%,respectively,and the correlation coefficients of the linear equations were all greater than 0. 99 with a good linear relationship;The relative standard deviations(RSDs)of precision verification were all less than 1%;Few cycles of freeze-thaw in a short period had little effect on the detection results. The copy numbers of LC and HC genes in different generations of recombinant cell lines detected by the established method showed no obvious changes.Conclusion A real-time quantitative PCR method for the determination of the copy number of exogenous genes in CHO cells was successfully established with good specificity,linearity,precision and durability,which provides a reference for detecting the copy number of exogenous genes expressed in other CHO cell lines

A case-crossover study on the impact of air pollution on the number of pediatric respiratory outpatient and emergency visits in a hospital in Shanghai / 公共卫生与预防医学

Objective To investigate the correlation between the concentration of air pollutants (PM10, SO2, NO2) and the number of outpatient and emergency visits for pediatric respiratory diseases in a general hospital in Shanghai. Methods Data including pediatric respiratory disease outpatient and emergency visits in a hospital in Pudong New Area of Shanghai from May 1, 2013 to March 20, 2022 were collected. Daily concentration of air pollutants including PM10, SO2 and NO2 and meteorological data in Pudong New Area during the same period were collected. A case-crossover study with distributed lag non-linear model was conducted to explore the correlation between air pollutants (PM10, SO2, NO2) and the number of outpatient and emergency visits for pediatric respiratory diseases. Results The concentrations of PM10, SO2 and NO2 were positively with the number of outpatient and emergency visits for pediatric respiratory diseases. The strongest cumulative effect was observed on six days lag (Lag0-5) for PM10. For a 10 μg/m3 increase of the concentrations of PM10, the corresponding increase of cumulative pediatric respiratory disease outpatients was 1.10% (95%CI:0.97%, 1.23%) in Lag0-5. The strongest cumulative effect was observed on eight days lag (Lag0-7) for SO2 and NO2. For a 10 μg /m3 increase of the concentrations of SO2 and NO2, the corresponding increase of cumulative pediatric respiratory disease outpatients was 5.64% (95%CI:5.16%, 6.13%) and 5.41% (95%CI:5.15%, 5.66%) in Lag 0-7, respectively. The association of PM10 and SO2 with the number of pediatric respiratory disease visits in males was significantly stronger than that in females. The impact of PM10 on the number of pediatric respiratory disease visits in children aged 0-6 was higher than that in children aged 7-14, while the impact of SO2 and NO2 on the number of pediatric respiratory disease visits in children aged 7-14 was higher than that in children aged 0-6. Conclusion The concentration of ambient PM10, SO2, and NO2 is positively correlated with outpatient and emergency visits for pediatric respiratory diseases, with obvious lag and cumulative effect. Boys and children aged 0-6 are more susceptible to the hazard of air pollution.

Review of evaluation and influencing factors of oral drug absorption fraction / 药学学报

Fraction absorbed (Fa) is an important parameter to describe the absorption level of oral drugs, and an important basis for the development and optimization of the formulation process. Because it is easily confused with the concept of absolute bioavailability, it has not received enough attention from the industry. There are many complex factors affecting Fa. There are three time-related factors that directly affect the extent of Fa: the release time, the absorption time, and the residence time. The relationship between these three time-related factors determines the extent of Fa. Generally, we are more concerned about the apparent factors that affect the extent of Fa, including independent variables and covariates; The independent variables include administered dose, route, dosage form, etc. The covariates are divided into internal and external factors, and external factors include food factors, drug interactions, etc. Internal causes include age, sex, disease, etc. This paper analyzes and systematically combs how independent variables and covariates directly or indirectly affect the three time-related factors by affecting the body's physiology and internal environment, thus changing the complex process of Fa. Understanding this theoretical framework can better optimize the independent variables to reduce the impact of covariates on Fa. In addition, this paper also introduces the latest progress of prediction and evaluation of Fa, including the progress of complex dissolution device and the status of software prediction.

Construction of a Three-dimensional Syndrome Differentiation System for Pulmonary Nodules under the Perspective of Qi， Blood and Fluids / 中医杂志

Based on the theory of qi， blood and fluids， and taking into account of the pathogenesis evolution process from constraint to phlegm， stasis and then mass in pulmonary nodules， an attempt has been made to construct a three-dimensional differentiation system for pulmonary nodules from the dimensions of time and space. The temporal progression of the early， middle， and late stages of pulmonary nodules reflects the pathological changes from constraint to phlegm and then stasis in the metabolism disorders of qi， blood and fluid. The spatial structures such as size， density， and morphology of pulmonary nodules reflect the pathological states of the duration， severity， and primary and secondary conditions of qi， blood and fluid metabolism disorders. Based on the temporal progression， the therapeutic principles have been proposed， which are dispelling pathogenic factors and promoting the use of beneficial factors to interrupt the growth momentum in the early stage， removing turbidity and dispersing phlegm to reduce the degree of nodules in the middle stage， and dispersing nodulation and eliminating abnormalities in the late stage. Based on the spatial structures， the suggested therapeutic methods are using wind herbs， employing multiple approaches to treat phlegm， and promoting blood circulation to resolve stasis， so as to provide theoretical reference for the systematic diagnosis and treatment of pulmonary nodules in traditional Chinese medicine.