Objective This study aims to investigate and analyze the distribution of MN blood type among ethnic minorities in China. Methods Through a systematic retrieval of the 981 literature related to MN blood group distribution, 120 literature, meeting the criteria of this study, with complete data were selected. The literature covers 49 ethnic minorities. SPSS 26 statistical software was used to analyze the data. Results The results showed that among the 49 ethnic minorities in China, the phenotype distribution of MN blood type was MN>MM>NN, with proportions of 42.54%, 41.86%, and 15.06% respectively. The gene frequency for MN blood type exhibited a trend of m>n, with a gene frequency of m being 0.6313 and n being 0.3687. Cluster analysis divided the Chinese ethnic minorities into three groups based on the gene frequency for m, showing the characteristics of Group I>Group II>Group III. Conclusion The MN blood type characteristics in Chinese ethnic minorities show a higher frequency of the M gene compared to the N gene. The frequency of the M gene is higher in southern ethnic minorities than in northern ones. There are significant differences between southwestern ethnic minorities and the Han nationality, but no differences with long-term mixed/settled Han populations.
Humans ; China/ethnology* ; Minority Groups ; Ethnicity/genetics* ; Gene Frequency ; Asian People/genetics* ; Blood Group Antigens/genetics*

Objective:To evaluate the incidence of arrhythmias and electrocardiographic (ECG) characteristics in cancer patients treated with immune checkpoint inhibitors (ICIs).Methods:This was a cohort study conducted in the Fourth Hospital of Hebei Medical University. Cancer patients initiating ICIs treatments from November 2020 to September 2022 were included in this study. Baseline 12-leads ECG before ICIs initiation and post-treatment ECG were analyzed. An abnormal ECG was defined as the presence of any of the following changes: sinus arrhythmias, atrial fibrillation, atrial flutter, paroxysmal supraventricular tachycardia, ventricular tachycardia, premature contractions, conduction disorder, and ST-T changes.Results:A total of 87 patients were enrolled, aged 63 (57, 68) years, with 66 (75.9%) males. And 44.8% (39/87) of patients presented with at least one confirmed cardiovascular disease or cardiovascular risk factor at baseline. The incidence of abnormal ECG increased from 31.0% (27/87) at baseline to 65.5% (57/87) after receiving (5.0±2.7) cycles of ICIs treatment ( P<0.001). The incidence of sinus arrhythmias was significantly increased after ICIs treatment (23.0% (20/87) vs. 9.2% (8/87), P=0.023), of which only the incidence of sinus tachycardia was significantly increased (11.5% (10/87) vs. 2.3% (2/87), P=0.039). There was also a significantly increased incidence of ST-T changes after ICIs treatment (31.0% (27/87) vs. 17.2% (15/87), P=0.012), which mainly attributed to the T wave changes (29.9% (26/87) vs. 13.8% (12/87), P=0.001). The incidence of premature contractions was also significantly increased after ICIs treatment (9.2% (8/87) vs. 0, P=0.008). Additionally, compared with baseline, the P wave axis was significantly increased after ICIs treatment ((56.94±21.01)° vs. (52.00±22.69)°, P=0.043). After ICIs treatment, the heart rate was significantly increased ((79.07±15.37) beats/min vs. (75.64±13.37) beats/min, P=0.029). Sokolow-Lyon index ((2.21±0.81)mV vs. (2.33±0.75)mV, P=0.138), QTc interval ((431.44±36.04)ms vs. (428.00±30.05)ms, P=0.415) all showed signs of change after treatment, but did not reach the traditional significant level. Conclusions:The incidence of abnormal ECG is significantly increased after ICIs treatment, especially for sinus tachycardia, premature contractions and T wave changes; the P wave axis and heart rate is also significantly increased after treatment. It is important to perform regular ECG monitoring in patients receiving ICIs treatment.

Malocclusion,identified by the World Health Organization(WHO)as one of three major oral diseases,profoundly impacts the dental-maxillofacial functions,facial esthetics,and long-term development of～260 million children in China.Beyond its physical manifestations,malocclusion also significantly influences the psycho-social well-being of these children.Timely intervention in malocclusion can foster an environment conducive to dental-maxillofacial development and substantially decrease the incidence of malocclusion or reduce the severity and complexity of malocclusion in the permanent dentition,by mitigating the negative impact of abnormal environmental influences on the growth.Early orthodontic treatment encompasses accurate identification and treatment of dental and maxillofacial morphological and functional abnormalities during various stages of dental-maxillofacial development,ranging from fetal stages to the early permanent dentition phase.From an economic and societal standpoint,the urgency for effective early orthodontic treatments for malocclusions in childhood cannot be overstated,underlining its profound practical and social importance.This consensus paper discusses the characteristics and the detrimental effects of malocclusion in children,emphasizing critical need for early treatment.It elaborates on corresponding core principles and fundamental approaches in early orthodontics,proposing comprehensive guidance for preventive and interceptive orthodontic treatment,serving as a reference for clinicians engaged in early orthodontic treatment.

The development of private health insurance is crucial for the construction of a multi-tiered healthcare security.Since entering the innovative development stage,the types and protection contents of private health insurance products have been continuously enriched,but there are still some problems.Taking Shanghai as the research object,it describes the development status of private health insurance in Shanghai by analyzing relevant policies,premium income,and product types.It locates many problems such as product supply and industrial synergy,such as uneven product distribution,insufficient product differentiation,insufficient information disclosure,and the need to improve the risk management and control capabilities of insurance institutions.It also puts forward suggestions such as enriching product types,optimizing insurance content,strengthening multi-party collaboration,and establishing a long-term mechanism to promote the high-quality development of commercial health insurance.

Constructing a multi-tiered healthcare security system can meet the diverse and individualized healthcare service demand of the general public.Public hospitals,as the main providers of healthcare services in China,effectively integrate with commercial health insurance,which can accelerate the implementation of high-quality healthcare services,promote innovative development,and optimize product coverage and operational efficiency for commercial health insurance,achieving a win-win situation.Taking Shanghai as the research object,it analyzes the supply and demand status of multi-tiered healthcare security in Shanghai based on population characteristics,economic level,healthcare resources,and policy environment.It identifies the difficulties in the current collaboration between public hospitals and commercial insurance.Finally,it proposes exploring the expansion of independent development space for specialized services,improving the level of coordination between commercial insurance institutions and public hospitals in health management services,promoting the management and sharing of data,strengthening the protection of innovative medicines and devices by commercial insurance,in order to promote the coordinated development of commercial insurance and public hospitals.

Based on on-site research in Shanghai,it takes a supply-side perspective to examine the current status of cooperation between Private Health Insurance(PHI)and the pharmaceutical industry.It discusses the issues existing in the cooperation and proposes policy recommendations for their coordinated development.It identifies three main cooperation models and products,which are the public-private integrated product"Hui Min Bao",the special drug insurance led by insurance companies,and the disease insurance for patients led by pharmaceutical enterprises.However,these models commonly face challenges such as the limited policy support,a lack of standardized cooperation between the two sectors,insufficient information and data exchange,immature innovative payment models,and difficulties in the application of innovative drugs.It argues that the key to coordinated development lies in leveraging the strategic purchasing power of PHI,devising rational payment strategies and standards to achieve a win-win situation for insurers,enterprises,healthcare providers and patients.Therefore,policy recommendations are proposed from the perspectives of establishing mechanisms,breaking barriers,strategic procurement,and supporting measures.

The development of private health insurance is crucial for the construction of a multi-tiered healthcare security.Since entering the innovative development stage,the types and protection contents of private health insurance products have been continuously enriched,but there are still some problems.Taking Shanghai as the research object,it describes the development status of private health insurance in Shanghai by analyzing relevant policies,premium income,and product types.It locates many problems such as product supply and industrial synergy,such as uneven product distribution,insufficient product differentiation,insufficient information disclosure,and the need to improve the risk management and control capabilities of insurance institutions.It also puts forward suggestions such as enriching product types,optimizing insurance content,strengthening multi-party collaboration,and establishing a long-term mechanism to promote the high-quality development of commercial health insurance.

Constructing a multi-tiered healthcare security system can meet the diverse and individualized healthcare service demand of the general public.Public hospitals,as the main providers of healthcare services in China,effectively integrate with commercial health insurance,which can accelerate the implementation of high-quality healthcare services,promote innovative development,and optimize product coverage and operational efficiency for commercial health insurance,achieving a win-win situation.Taking Shanghai as the research object,it analyzes the supply and demand status of multi-tiered healthcare security in Shanghai based on population characteristics,economic level,healthcare resources,and policy environment.It identifies the difficulties in the current collaboration between public hospitals and commercial insurance.Finally,it proposes exploring the expansion of independent development space for specialized services,improving the level of coordination between commercial insurance institutions and public hospitals in health management services,promoting the management and sharing of data,strengthening the protection of innovative medicines and devices by commercial insurance,in order to promote the coordinated development of commercial insurance and public hospitals.

Based on on-site research in Shanghai,it takes a supply-side perspective to examine the current status of cooperation between Private Health Insurance(PHI)and the pharmaceutical industry.It discusses the issues existing in the cooperation and proposes policy recommendations for their coordinated development.It identifies three main cooperation models and products,which are the public-private integrated product"Hui Min Bao",the special drug insurance led by insurance companies,and the disease insurance for patients led by pharmaceutical enterprises.However,these models commonly face challenges such as the limited policy support,a lack of standardized cooperation between the two sectors,insufficient information and data exchange,immature innovative payment models,and difficulties in the application of innovative drugs.It argues that the key to coordinated development lies in leveraging the strategic purchasing power of PHI,devising rational payment strategies and standards to achieve a win-win situation for insurers,enterprises,healthcare providers and patients.Therefore,policy recommendations are proposed from the perspectives of establishing mechanisms,breaking barriers,strategic procurement,and supporting measures.

The development of private health insurance is crucial for the construction of a multi-tiered healthcare security.Since entering the innovative development stage,the types and protection contents of private health insurance products have been continuously enriched,but there are still some problems.Taking Shanghai as the research object,it describes the development status of private health insurance in Shanghai by analyzing relevant policies,premium income,and product types.It locates many problems such as product supply and industrial synergy,such as uneven product distribution,insufficient product differentiation,insufficient information disclosure,and the need to improve the risk management and control capabilities of insurance institutions.It also puts forward suggestions such as enriching product types,optimizing insurance content,strengthening multi-party collaboration,and establishing a long-term mechanism to promote the high-quality development of commercial health insurance.