Objective To analyze the research hotspots and trends in the field of cancer pain drugs based on literature.Methods This article included research literature related to cancer pain and drugs published in the China National Knowledge Infrastructure(CNKI)and Web of Science databases.The visual analysis of the literature was performed by software of VOS-viewer 1.6.18 and CiteSpace 6.2.R3,including drawing the graphs and comparing the number of published articles,journals,institutions,authors and keywords were also analyzed.Results A total of 4 774 literatures were included.The journals with the largest number of articles published were the Chinese Journal of Pain Medicine and the Journal of Pain and Symptom Management.The authors with the highest number of articles published were Liu Duanqi and Bruera Eduardo.The institutions with the highest number of publications were Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology,and the University of Texas Anderson Cancer Center.The most frequent keyword was cancer pain.The keywords with the strongest citation bursts included Clinical efficacy average daily cost,and primary care.Conclusion Since the beginning of the 21st century,the research on cancer pain drugs has gradually heated up,and the number of papers has shown an upward trend.From 2019 to 2022,the research on cancer pain drugs at home and abroad mainly focused on the clinical efficacy and average daily cost.This article has clarified the research hotspots of cancer pain drugs in recent years to a certain extent and has certain reference significance for future research.

Objective To explore the value of the Kyoto classification score in differentiating undifferentiated gastric cancer from differentiated gastric cancer,and establish a predictive scoring system for differentiating undifferentiated gastric cancer under endoscope.Methods 183 gastric cancer patients were retrospectively analyzed.According to pathology,95 patients were included in the differentiated group and 88 were included in the undifferentiated group.The age,gender and Kyoto classification score of patients in the two groups were compared,and the factors associated with undifferentiated gastric cancer were screened by binary Logistic regression analysis.The predictive scoring system for undifferentiated gastric cancer was established based on the obtained odds ratio(O(R))values,and the receiver operator characteristic curve(ROC curve)was drawn.Results Compared with differentiated group,the total scores of Kyoto classification,atrophy,intestinal metaplasia and diffuse redness were lower in undifferentiated group(P<0.01).Under the age of 55(P<0.05),female(P<0.05),and C1 atrophy or no atrophy(P<0.01)were independently associated with undifferentiated gastric cancer.The area under the curve(AUC)of predictive scoring system for undifferentiated gastric cancer was 0.881(95％CI:0.828～0.934),and the sensitivity and specificity were 80.70％and 90.50％at the optimal cut-off value.Conclusion There are differences in Kyoto classification scores between undifferentiated and differentiated gastric cancer patients.The predictive scoring system of undifferentiated gastric cancer established by us has certain value in distinguishing undifferentiated gastric cancer under endoscope.

Platinum-based chemotherapy resistance is a key factor of poor prognosis and recurrence in hepatocellular carcinoma (HCC). Herein, RNAseq analysis revealed that elevated tubulin folding cofactor E (TBCE) expression is associated with platinum-based chemotherapy resistance. High expression of TBCE contributes to worse prognoses and earlier recurrence among liver cancer patients. Mechanistically, TBCE silencing significantly affects cytoskeleton rearrangement, which in turn increases cisplatin-induced cycle arrest and apoptosis. To develop these findings into potential therapeutic drugs, endosomal pH-responsive nanoparticles (NPs) were developed to simultaneously encapsulate TBCE siRNA and cisplatin (DDP) to reverse this phenomena. NPs (siTBCE + DDP) concurrently silenced TBCE expression, increased cell sensitivity to platinum treatment, and subsequently resulted in superior anti-tumor effects both in vitro and in vivo in orthotopic and patient-derived xenograft (PDX) models. Taken together, NP-mediated delivery and the co-treatment of siTBCE + DDP proved to be effective in reversing chemotherapy resistance of DDP in multiple tumor models.

Objective:To understand the correlation between urinary iodine, salt iodine and thyroid nodules in children aged 8 - 10 years and pregnant women in different regions of Fujian Province, and to explore the influencing factors of thyroid diseases.Methods:A cross-sectional study was conducted in Dongshan County and Pingtan County of Fujian Province from September to November 2019. According to the inclusion criteria, 140 pregnant women and 270 children aged 8 - 10 years were selected in Dongshan County, and 189 pregnant women and 368 children aged 8 - 10 years were selected in Pingtan County. Random urine and edible salt samples were collected to determine iodine content, and iodine nutrition was evaluated in each population. Thyroid was examined by B ultrasound and questionnaire survey of thyroid diseases was carried out. The correlation between urinary iodine, salt iodine and thyroid nodules in children aged 8 - 10 years and pregnant women in different regions was analyzed.Results:There were statistically significant differences in the median urinary iodine among children in different genders (male: 151.30 μg/L, female: 130.30 μg/L) and regions (Dongshan County: 160.30 μg/L, Pingtan County: 129.70 μg/L, P < 0.05); there was no significant difference in the median urinary iodine among children of different ages (8, 9, 10 years old: 141.60, 128.05, 150.30 μg/L, P > 0.05). The median urinary iodine among pregnant women was 119.30 μg/L, and there was no significant difference in median urinary iodine among pregnant women in different stages and regions ( P > 0.05). The medians of salt iodine from children and pregnant women were 20.30 and 23.65 mg/kg, respectively. Urinary iodine in children was positively correlated with salt iodine ( r = 0.13, P < 0.05). However, there was no correlation between urinary iodine and salt iodine in pregnant women ( P > 0.05). The detection rate of thyroid nodules in children was 21.79% (139/638). There was significant difference in the detection rate of thyroid nodules in children of different ages ( P < 0.05). The detection rate of thyroid nodules in pregnant women was 4.26% (14/329). There was no correlation between detection rate of thyroid nodules and urinary iodine or salt iodine in children and pregnant women ( P > 0.05). Thyroid volume of children in the two counties was within the normal range, and there was no correlation between thyroid volume and urinary iodine or salt iodine ( P > 0.05). Conclusions:The iodine nutrition of children in Dongshan County and Pingtan County is suitable (100 - 199 μg/L), while iodine deficiency (< 150 μg/L) exists in pregnant women. Urinary iodine in children is related to salt iodine, and urinary iodine increased with increase of salt iodine. The prevalence of thyroid nodules in children of different ages is different, which requires further study. The detection rate of thyroid nodules in children and pregnant women is not correlated with urinary iodine and salt iodine.

Objective: Some pharmacological treatments are ineffective in parts of patients with major depressive disorder (MDD), hence this needs prediction of effective treatment responses. The study aims to examine the relationship between dynamic functional connectivity (dFC) of the hippocampal subregion and antidepressant improvement of MDD patients and to estimate the capability of dFC to predict antidepressant efficacy. Methods: The data were from 70 MDD patients and 43 healthy controls (HC); the dFC of hippocampal subregions was estimated by sliding-window approach based on resting-state functional magnetic resonance imaging (R-fMRI). After 3 months treatment, 36 patients underwent second R-fMRI scan and were then divided into the response group and non-response group according to clinical responses. Results: The result manifested that MDD patients exhibited lower mean dFC of the left rostral hippocampus (rHipp.l) compared with HC. After 3 months therapy, the response group showed lower dFC of rHipp.l compared with the non-response group. The dFC of rHipp.l was also negatively correlated with the reduction rate of Hamilton Depression Rating Scale. Conclusion These findings highlighted the importance of rHipp in MDD from the dFC perspective. Detection and estimation of these changes might demonstrate helpful for comprehending the pathophysiological mechanism and for assessment of treatment reaction of MDD.

Objective:To understand the epidemic situation of drinking-water-borne endemic fluorosis in Fujian Province, and to provide more information for control and evaluation of the disease.Methods:In 2019, all villages in the 36 drinking-water-borne endemic fluorosis areas in Fujian Province were selected, in which the situation of water improvement was investigated, fluorine content of drinking water was tested and dental fluorosis of all the children aged 8 to 12 was examined. The urinary fluoride content and skeletal fluorosis of people over 25-year old was investigated in some of those villages.Results:A total of 153 disease affected villages were investigated, in which the water improvement projects were all completed. The fluoride content in each tap water sample of the water improvement project ranged from 0.00 to 1.05 mg/L, and the qualified rate was 100.00% (153/153). The normal operation rate of the water improvement projects was 95.42% (146/153). The detection rate of dental fluorosis in children aged 8 to 12 was 2.72% (76/2 789) with a dental fluorosis index 0.07. The detection rate of children's dental fluorosis was statistically different in different age groups, so was it in areas with different coverage rate of water improvement projects ( P < 0.05). The geometric mean of urinary fluorine level in adults was 0.80 mg/L ( n = 3 765), and the detection rate of skeletal fluorosis was 2.00% (6/300). Conclusion:Although some achievements have been made in the prevention and control of drinking-water-borne endemic fluorosis in Fujian Province, it is still necessary to further consolidate and enhance the water improvement projects.

Objective: The connectivity alterations in the putamen were found in revealing the neural correlates of attention-deficit/hyperactivity disorder (ADHD), but whether the effective connectivity of the putamen is atypical in ADHD remains unclear. Investigating this abnormality contributes to describing the neural circuit of ADHD at the level of macrostructural organization. Methods: Data were acquired from thirty-two boys with ADHD and fifty-two matched typically developing controls (TDC) from Peking University (Peking) dataset deposited at the Neuroimaging Informatics Tools and Resources Clearinghouse (NITRC) platform. We examined the effective connectivity of the putamen using Granger causality analysis (GCA) and then determined whether these connections could differentiate ADHD from TDC. Results: Compared with TDC, the ADHD group showed decreased effective connectivity from the left ventral rostral putamen (VRP) to left calcarine (CAL), right medial part of the superior frontal gyrus, left orbital part of superior frontal gyrus and left middle occipital gyrus (MOG). Increased effective connectivity from the left inferior occipital gyrus and right lingual gyrus to left VRP was also found in ADHD. The result of the classification accuracy showed that 72.3% of participants were correctly classified using support vector machine. Moreover, GCA values from the left VRP to left CAL and left MOG were significantly correlated with hyper/impulsive scores of patients with ADHD. Conclusion The findings may help extend our understanding of the ADHD-related neural loops.

Objective: The connectivity alterations in the putamen were found in revealing the neural correlates of attention-deficit/hyperactivity disorder (ADHD), but whether the effective connectivity of the putamen is atypical in ADHD remains unclear. Investigating this abnormality contributes to describing the neural circuit of ADHD at the level of macrostructural organization. Methods: Data were acquired from thirty-two boys with ADHD and fifty-two matched typically developing controls (TDC) from Peking University (Peking) dataset deposited at the Neuroimaging Informatics Tools and Resources Clearinghouse (NITRC) platform. We examined the effective connectivity of the putamen using Granger causality analysis (GCA) and then determined whether these connections could differentiate ADHD from TDC. Results: Compared with TDC, the ADHD group showed decreased effective connectivity from the left ventral rostral putamen (VRP) to left calcarine (CAL), right medial part of the superior frontal gyrus, left orbital part of superior frontal gyrus and left middle occipital gyrus (MOG). Increased effective connectivity from the left inferior occipital gyrus and right lingual gyrus to left VRP was also found in ADHD. The result of the classification accuracy showed that 72.3% of participants were correctly classified using support vector machine. Moreover, GCA values from the left VRP to left CAL and left MOG were significantly correlated with hyper/impulsive scores of patients with ADHD. Conclusion The findings may help extend our understanding of the ADHD-related neural loops.

Objective:To analyze the disease burden of iodine deficiency disorders (IDD) and its changes in China in 1990 and 2016.Methods:Based on the data of Global Burden of Disease Study 2016 (GBD 2016), a descriptive statistical method was used to compare and analyze the changes of deaths number, mortality, disability adjusted life year [DALY, including years of life lost (YLL) and years lived with disability (YLD)], DALY rate and other disease burden indicators caused by IDD in China in 1990 and 2016.Results:The GBD 2016 data showed that the deaths number from IDD in China decreased from 259.31 in 1990 to 116.41 in 2016, the mortality decreased from 0.022 827/100 000 in 1990 to 0.008 515/100 000 in 2016; and the mortality in different age groups had decreased, the children mortality in the < 5 years old group had decreased from 0.088 639/100 000 to 0.009 875/100 000. The DALY and YLD due to IDD in China increased from 406.13 thousand person-years and 391.68 thousand person-years in 1990 to 455.05 thousand person-years and 451.95 thousand person-years in 2016, while YLL decreased from 14.45 thousand person-years to 3.10 thousand person-years; the DALY rate, YLL rate, and YLD rate decreased from 35.75 person-years per 100 000, 1.27 person-years per 100 000 and 34.48 person-years per 100 000 in 1990 to 33.29 person-years per 100 000, 0.23 person-years per 100 000 and 33.06 person-years per 100 000 in 2016. The main component of DALY for IDD was YLD, and the proportion increased from 96.44% in 1990 to 99.32% in 2016.Conclusions:The mortality of IDD in China has decreased, and IDD in the younger age group has been effectively controlled; however, the disease burden, especially the burden caused by disability has increased, and the disability of the population due to IDD should be given special attention.

OBJECTIVE: To explore the influence of negative emotion on the professional identity of nurses in Guangdong Province and the moderating role of social support during COVID-19 pandemic. METHODS: A convenience sampling method was used to select 436 nurses in Guangdong Province as study subjects. The Depression-Anxiety-Stress Scale, Nurse Professional Identity Scale and Perceived Social Support Scale were used to investigate the negative emotion, professional identity and social support of these nurses. RESULTS: The median, the 25 th and 75 th percentile scores of the negative emotion total scores of nurses was 10.0(3.0,17.8). The total scores of professional identity and social support were(106.6±16.9) and(56.9±13.2), respectively. The professional identity and social support were negatively correlated with negative emotion(P<0.01), while the professional identity was positively correlated with social support in these nurses(P<0.01). The negative emotion of nurses can negatively predict their professional identity, and social support plays a moderating role in it.CONCLUSION: The higher the degree of social support, the less negative emotional impact on professional identity of nurses during COVID-19 pandemic. Nurses should be given more social supports.