BACKGROUND:Umbilical cord mesenchymal stem cells present immunomodulatory function and multidirectional differentiation potential.Umbilical cord mesenchymal stem cells can actively improve the chronic low-grade inflammation state in type 2 diabetes mellitus and which is important for preventing the development of type 2 diabetes mellitus progression.OBJECTIVE:To review the research progress of umbilical cord mesenchymal stem cells in the treatment of type 2 diabetes mellitus through immunomodulatory effect.METHODS:Using"umbilical cord mesenchymal stem cells,UC-MSCs,mesenchymal stem cells,MSCs,type 2 diabetes mellitus,T2DM,immunity,insulin resistance,inflammation"as Chinese and English search terms,articles were searched on CNKI,Web of Science and PubMed databases.Relevant reviews,research papers and theses were screened and 88 papers were collected for summarization based on the inclusion and exclusion criteria.RESULTS AND CONCLUSION:Umbilical cord mesenchymal stem cells can effectively delay the occurrence and development of type 2 diabetes mellitus by reducing inflammatory response,inducing macrophages to M2 polarization,increasing the sensitivity of target organs to insulin,improving insulin resistance,and alleviating the dysfunction of islet beta cells through immune regulation.However,before umbilical cord mesenchymal stem cell transplantation can become a routine treatment,large-scale basic and applied basic research is needed to determine the optimal treatment regimen and efficacy.

BACKGROUND:Umbilical cord mesenchymal stem cells present immunomodulatory function and multidirectional differentiation potential.Umbilical cord mesenchymal stem cells can actively improve the chronic low-grade inflammation state in type 2 diabetes mellitus and which is important for preventing the development of type 2 diabetes mellitus progression.OBJECTIVE:To review the research progress of umbilical cord mesenchymal stem cells in the treatment of type 2 diabetes mellitus through immunomodulatory effect.METHODS:Using"umbilical cord mesenchymal stem cells,UC-MSCs,mesenchymal stem cells,MSCs,type 2 diabetes mellitus,T2DM,immunity,insulin resistance,inflammation"as Chinese and English search terms,articles were searched on CNKI,Web of Science and PubMed databases.Relevant reviews,research papers and theses were screened and 88 papers were collected for summarization based on the inclusion and exclusion criteria.RESULTS AND CONCLUSION:Umbilical cord mesenchymal stem cells can effectively delay the occurrence and development of type 2 diabetes mellitus by reducing inflammatory response,inducing macrophages to M2 polarization,increasing the sensitivity of target organs to insulin,improving insulin resistance,and alleviating the dysfunction of islet beta cells through immune regulation.However,before umbilical cord mesenchymal stem cell transplantation can become a routine treatment,large-scale basic and applied basic research is needed to determine the optimal treatment regimen and efficacy.

Objective:To systematically review the disease treatment and management experience of parents of children with attention deficit hyperactivity disorder (ADHD) .Methods:Qualitative or mixed studies on the treatment and management experience of parents of children with ADHD were searched in databases such as PubMed, Embase, Cochrane Library, Web of Science, PsycINFO, Scopus, CINAHL, ProQuest, China National Knowledge Infrastructure, WanFang Data, and VIP. The search period was from database establishment to October 8, 2022. The quality of the included literature was evaluated using the quality evaluation criteria for qualitative research of the Joanna Briggs Institute Evidence-Based Health Care Center. Nvivo 11 software was used to integrate the results through aggregation integration methods.Results:A total of 13 articles were included and 36 research results were extracted.The results were categorized into 10 new categories and formed into 4 integrated results, including the impact of disease cognition of parents of children with ADHD on medical seeking behavior, psychological adjustment of parents of children during treatment, disease response of parents of children, and social resource needs for treatment and management of children.Conclusions:The role and responsibility of parents in the treatment and management of ADHD children are very important. We need to strengthen the popularization of knowledge about ADHD, enhance parents' awareness of the disease, pay attention to parents' psychological status, provide multi-channel social support, meet the treatment and educational needs of children, and promote the construction of an individualized and multidisciplinary comprehensive management system to improve the short-term and long-term outcomes of ADHD children.

Objective:To explore the effects of transcutaneous electric nerve stimulation (TENS) combined with cognitive behavior intervention in the elderly coronary disease patients with hypertension.Methods:From May 2017 to May 2019, we selected 90 elderly coronary disease patients with hypertension in the Second Affiliated Hospital of Harbin Medical University as subjects by convenience sampling. All of patients were divided into control group and observation group with the method of random number table, 45 cases in each group. Control group carried out cognitive behavior intervention, while observation group implemented the TENS combined with cognitive behavior intervention. We compared the angina pectoris symptom control, blood pressure control and the self-perceived burden with the Self-perceived Burden Scale (SPBS) of patients between two groups.Results:After intervention, the effective rate of angina pectoris control of observation group was higher than that of control group with a statistical difference ( P<0.05) ; the diastolic pressure and systolic pressure of observation group were lower than those of control group with statistical differences ( P<0.05) ; the score of SPBS of patients in control group was higher than that in control group also with a statistical difference ( P<0.001) . Conclusions:TENS combined with cognitive behavior intervention for elderly coronary disease patients with hypertension contributes to angina pectoris symptom control and reducing the blood pressure as well as self-perceived burden.

Objective To observe the changes of abdominal oxygen saturation in very low birth weight infants (VLBWI)with feeding intolerance (FI)within 1 4 days after birth monitored by near infrared spectroscopy (NIRS).Methods VLBWI fitting entry criteria were enrolled into this study.NIRS monitoring was carried out to detect cerebral oxygen saturation (ScO2 )and abdominal oxygen saturation (SsO2 ).Data were analyzed between FI infants and feeding tolerance (FT)infants.FI was defined as follows:gastric residual of more than 50% of the previous feeding volume;emesis or abdominal distention or both;decrease,delay or discontinuation of enteral feedings. Results 93 VLBWI were enrolled.52 cases(55.91 %)presented with FI,including 29 cases(31 .1 9%)of gastric residual increasing and 23 cases(24.73%)of emesis with or without abdominal distention within 1 4 days after birth. The levels of SsO2 and SsO2 /ScO2 showed no differences in infants with FT and with FI within 24h after birth (P >0.05).The change rates of the median of SsO2 and SsO2 /ScO2 in FT infants were similar during 1 4 days (P >0.05).While both the change rates of SsO2 and SsO2 /ScO2 were markedly decreased 1 day before and the day of FI (P <0.01 ).The decreasing degree of SsO2 was similar between infants with gastric residual increasing and infants with emesis with or without abdominal distention[(1 6.2 ±5.1 )vs (1 7.4 ±3.6)%,t =0.733,P =0.476]. Conclusion Abdominal oxygen saturation measured by NIRS may be a useful method for infants adjusting the feeding plan.

Objective To investigate the epididymal sperm ultrastructure after vasectomy. Methods During the operation of vasovasostomy (38 cases, test group) and vasectomy (13 cases,control group,group A) the proximal vas deferens fluids were collected.The epididymal sperm morphology in the proximal vas deferens fluids was observed using optical and electronic microscopes.Data were analyzed by SPSS program. Results The data from group A showed that there was no significant difference between left and right side in the percentage of normal sperm morphology.The results from both optical and electronic microscopes showed that there was a significant difference in the percentage of normal sperm morphology (a),abnormal sperm head (b),sperm with neck defect (c) and sperm with tail defect (d) between group A and group B(5 years after vasectomy). (electronic microscopes:(a):(40.28?11.53)% vs (16.80?7.93)%,(6.29? 4.57 )%,( 4.63? 5.06 )%; (b):(35.00?14.18)% vs (59.05?14.44)%,(63.43?15.23)%,(82.05? 16.71 )%;(c):(20.83? 6.40 )% vs (13.60?6.78)%,( 14.71? 6.82)%,(9.00?7.18)%;(d):(3.89?4.44)% vs (10.55?11.73)%,(15.57?9.81)%,(4.32?7.65)%. optical microscopes:(a):(49.12?20.55)% vs (19.95?15.42)%,(10.00?9.50)%,(5.84?9.63)%; (b):(35.00?14.55)% vs (22.55?16.24)%,(14.71?15.78)%,(10.68?18.65)%; (d):(15.80?9.55)% vs (57.50?24.74)%,(75.29?23.90)%,(78.21?30.33)%.There existed multi-cell organ and multi-form abnormalities in the inner structures of sperm heads,necks and tails. Conclusions The epididymal sperm defect (including head, neck and tail) after vasectomy was demonstrated in the inner cell organs.The longer after vasectomy, the higher percentage of sperm with abnormality was found.