Objective To analyze the prevalence and genetic characteristics of influenza A(H3N2) viruses in the city of Xiangyang in 2022-2023, and to provide a scientific basis for predicting the epidemic and mutation of influenza virus. Methods Throat swab specimens of the influenza like cases were collected from national influenza monitoring sentinel hospitals in Xiangyang every week. RNA was extracted from the specimens for influenza diagnosing using real-time RT-PCR．Viruses were isolated from H3N2 positive specimens, and HA and NA genes were amplified and sequenced．3D modeling analyses were conducted. Results The gene phylogenetic tree showed that the H3N2 isolates in 2022-2023 belonged to 3C.2a1b.2a1 and 3C.2a1b.2a2 branches, respectively. The A(H3N2) influenza virus strains all had amino acid point mutation sites on important antigenic determinants of HA protein. The epitope mutations of the 2022 A(H3N2) strain mainly occurred in regions B, C, and D. The epitope mutations of the A(H3N2) strain in 2023 mainly occurred in regions C and D. Different glycosylation sites of HA gene were found in 2022-2023 strains. No variation was found in key amino acid sites associated with neuraminidase inhibitor resistance. The difference of overall structure was not obvious in the three-dimensional simulation structure diagram. Conclusion The A(H3N2) influenza strains isolated in this study have shown antigenic drift, especially the mutation of HA, which may affect the protective effect of the vaccine on the local population and lead to influenza epidemic. The variations of HA and NA suggest that close attention should be paid to the epidemic and genetic variation of H3N2 subtype influenza virus, to provide a scientific basis for the selection of influenza virus vaccine strains and the prevention and control of influenza.

Objective To observe the clinical efficacy of modified Shehuang Ointment(mainly composed of Cnidii Fructus,Phellodendri Chinensis Cortex,and Zanthoxyli Pericarpium)for the treatment of facial seborrheic dermatitis(SD).Methods Seventy-two patients with facial SD were randomly divided into observation group and control group,with 36 patients in each group.Both groups of patients were given oral use of Acrivastine Capsules and Vitamin B6 Tablets,and additionally,the observation group was given topical application of modified Shehuang Ointment and the control group was given topical application of 2%Ketoconazole cream.The course of treatment covered 4 weeks.The changes of clinical symptom scores and dermatology life quality index(DLQI)scores in the two groups were observed before and after treatment,and the clinical efficacy and safety of the two groups were also evaluated.Results(1)After 4 weeks of treatment,the total effective rate of the observation group was 88.89%(32/36),and that of the control group was 72.22%(26/36).The intergroup comparison showed that the efficacy of the observation group was significantly superior to that of the control group,and the difference was statistically significant(P＜0.05).(2)After treatment,the clinical symptom scores of erythema,scales,grease,rash area,itchiness and other clinical symptoms of the patients in the two groups were significantly decreased compared with those before treatment(P＜0.05),and the clinical symptom scores of the observation group were significantly lower than those of the control group,the differences being statistically significant(P＜0.05).(3)After treatment,the DLQI scores of patients in the two groups were significantly lower than those before treatment(P＜0.05),and the DLQI scores in the observation group were significantly lower than those in the control group after treatment,the difference being statistically significant(P＜0.05).(4)During the treatment period,no significant adverse reactions occurred in the two groups of patients,with high safety.Conclusion The conventional western medicine treatment combined with topical application of modified Shehuang Ointment exerts certain effect in the treatment of facial SD,which can effectively relieve the clinical symptoms and improve the quality of life of patients.

The construction of urban medical groups is an important supply-side reform and exploration of Chinese urban health service system.It analyzes and discusses the interest generation mechanism,the dialectical relationship between public interests and economic interests and the balancing strategy of urban medical group construction,and proposes that the construction of urban medical groups mainly generates new value through comprehensive medical care,large-scale development,homogeneous services,digital construction and technology innovation,which can bring about optimizing the allocation of medical treatment resources,improving the homogeneity level and innovation ability of regional medical services,and strengthening regional primary medical services and other public interests.It can also bring about improvements in service efficiency,capacity and volume,which in turn generate economic benefits.The pursuit of public and economic interests in the construction of urban medical groups has potential value conflicts in terms of service positioning,cost and accessibility,effectiveness and rationality,and at the same time,there is a synergy mechanism in fulfilling social responsibilities,optimizing the utilization of medical resources,and promoting medical innovation and high-quality development.In the pilot construction of urban medical groups,public interests and economic interests should be viewed dialectically,the role of local governments in policy guidance,supervision and incentives should be explored,a focus on resource optimization,innovation-driven or high-quality development to promote the synergy of public interests and economic interests should be emphasized,and public participation should be strengthened and a performance evaluation mechanism should be established.

Radiation mainly comes from medical radiation,industrial radiation,nuclear waste and atmospheric ultraviolet radiation,etc.,radiation is divided into ionizing radiation and non-ionizing radiation.Studying the effects of ionizing and non-ionizing radiation on drug metabolism,understanding the absorption and distribution of drugs in the body after radiation and the speed of elimination under radiation conditions can provide reasonable guidance for clinical medication.This article reviews the effects of radiation on the pharmacokinetics of different drugs,elaborates the changes of different pharmacokinetics under radiation state,and discusses the reasons for the changes.

Temporomandibular joint (TMJ) diseases are common clinical conditions. The number of patients with TMJ diseases is large, and the etiology, epidemiology, disease spectrum, and treatment of the disease remain controversial and unknown. To understand and master the current situation of the occurrence, development and prevention of TMJ diseases, as well as to identify the patterns in etiology, incidence, drug sensitivity, and prognosis is crucial for alleviating patients′suffering.This will facilitate in-depth medical research, effective disease prevention measures, and the formulation of corresponding health policies. Cohort construction and research has an irreplaceable role in precise disease prevention and significant improvement in diagnosis and treatment levels. Large-scale cohort studies are needed to explore the relationship between potential risk factors and outcomes of TMJ diseases, and to observe disease prognoses through long-term follw-ups. The consensus aims to establish a standard conceptual frame work for a cohort study on patients with TMJ disease while providing ideas for cohort data standards to this condition. TMJ disease cohort data consists of both common data standards applicable to all specific disease cohorts as well as disease-specific data standards. Common data were available for each specific disease cohort. By integrating different cohort research resources, standard problems or study variables can be unified. Long-term follow-up can be performed using consistent definitions and criteria across different projects for better core data collection. It is hoped that this consensus will be facilitate the development cohort studies of TMJ diseases.

Objective To explore the neuroprotective effect of curcumin(Cur)on Parkinson's disease model and its mechanism.Methods Sprague-Dawley rats were randomly divided into the control(CON)group,the model(PD)group,and the low-,medium-,and highdose curcumin(Cur)groups,with ten rats in each group.Lipopolysaccharide was injected into the substantia nigra to establish a Parkinson's disease model.Rats in the Cur groups were administered Cur intraperitoneally at doses of 20 mg/kg,40 mg/kg,and 60 mg/kg daily for 21 days.α-synuclein(α-syn),nuclear transcription factor κB proteins(NF-κB,IKBα,p-NF-κB,p-IKBα)and the activation levels of astrocytes were detected in rat brain tissues by immunohistochemistry(IHC).mRNA levels of pro-inflammatory cytokines(TNF-α,IL-β,IFN-γ,IL-6),inducible nitric oxide synthase(iNOS),cyclooxygenase-2(COX-2),NADPH oxidase complex(gp47phox,gp91phox,gp67phox),and apoptosis-related factors(Bax,Bcl-2,Caspase-3,and Caspase-9)were measured by quantitative reverse transcription polymerase chain reaction(qRT-PCR).The rotarod and pole climbing tests were used to evaluate the motor coordination of the rats.Results Compared to the CON group,PD rats showed significantly increased levels of α-syn,p-NF-κB,p-IKBα proteins,activation of astrocytes,TNF-α,IL-β,IFN-γ,IL-6,iNOS,COX-2,Bax,Caspase-3,Caspase-9,gp47phox,gp91phox and gp67phox mRNA levels(P<0.05);while the Bcl-2 level was significantly decreased(P<0.05).Compared with the PD group,the medium-and high-dose Cur treatment groups inhibited the aggregation of α-syn protein,reduced the activation of the NF-κB pathway,and the expression of inflammatory and apoptosis-related factors(P<0.05).Moreover,medium and high doses of Cur significantly improved the motor coordination in rats,and compared with the PD group,the performance of rotarod and pole climbing tests was significantly improved(P<0.05).Conclusion cur may inhibit the aggregation of α-syn by suppressing neuroinflammation and oxidative stress responses,thereby improving motor coordination in Parkinson's disease rats and exerting neuroprotective effects.

Objective To investigate the neurodevelopmental characteristics of children with autism spectrum disorder(ASD),analyze the correlation between neurodevelopmental indicators and cerebral blood flow(CBF),and explore the potential mechanisms of neurodevelopment in ASD children.Methods A retrospective study was conducted on 145 children aged 2-6 years with newly-diagnosed ASD.Scores from the Gesell Developmental Diagnosis Scale and the Autism Behavior Checklist(ABC)and CBF results were collected to compare gender differences in the development of children with ASD and analyze the correlation between CBF and neurodevelopmental indicators.Results Fine motor and personal-social development quotient in boys with ASD were lower than those in girls with ASD(P<0.05).Gross motor development quotient in ASD children was negatively correlated with CBF in the left frontal lobe(r=-0.200,P=0.016),right frontal lobe(r=-0.279,P=0.001),left parietal lobe(r=-0.208,P=0.012),and right parietal lobe(r=-0.187,P=0.025).The total ABC score was positively correlated with CBF in the left amygdala(r=0.295,P<0.001).Conclusions Early intervention training should pay attention to gender and developmental structural characteristics for precise intervention in ASD children.CBF has the potential to become a biological marker for assessing the severity of ASD.

Objective To compare the changes of the Chinese Materia Medica resources(CMMR)in Sichuan based on the data of the 3rd Chinese Materia Medica Resource Inventory(CMMRI,1983-1986)and the 4th CMMRI(2011-2022).Methods Using new techniques,after field investigation,collection and identification of the specimens of the animals,plants and minerals.The data of the CMMR in Sichuan found in the 4th CMMRI were analysed and compared with the data of 3rd CMMRI.Results ①9055 species of CMMR were found in Sichuan during the 4th CMMRI,including 8272 species of medicinal plants,745 species of medicinal animals and 38 species of medicinal minerals.Compared with the 3rd CMMRI,the number of CMMR found in Sichuan have greatly increased.The number of medicinal plants increased 5018 species,the number of medicinal animals increased 637 species and the number of medicinal minerals increased 5 species,too.②The medicinal plants is the main part of the CMMR,and the higher plants(7774 species)has the absolute advantage of the CMMR.The top 20 families which have plenty of plant species include Compositae,Rosaceae,Leguminosae,Ranunculaceae,etc.③ Based on the data of the CMMR of the 183 counties in Sichuan,the reserves of 235 species of wild CMMR in Sichuan is about 36.72 million ton.There were 49 CMMR which have reserves beyond 100 thousand tons,such as Arisaematis rhizoma,Epimedii folium,Cimicifugae rhizoma,Acori tatarinowii rhizoma,Gentianae macrophyllae radix,Polygoni multiflori radix etc.④In 2021,there were 215 species of CMMR cultivated in Sichuan,the main species were Aurantii fructus,Chuanxiong rhizoma,Polygonati rhizome,Salviae miltiorrhizae radix et rhizome.The planting area was 8.17 million and the production was 1.26 million ton.⑤All 183 countries were found CMMR,the number of the species of CMMR in 30 countries exceeded 800,including 16 countries which had more than 1000 kinds of CMMR,such as Emeishan,Hongya,Muli etc.The total types of the CMMR(up 118.31%),the reserves of the wild CMMR(up 119 times)and the number of the counties(up 3 times)which had plenty of CMMR,showed a marked increase over the 3rd CMMRI.8 new species were found in the the 4th CMMRI,such as Codonopsis atriplicifolia,Tongoloa tagongensis,Allium xinlongense,etc.Conclusion The species,the reserves of the CMMR and the resource rich countries in Sichuan are the top 3 in China and Sichuan is worthy of the title of"Hometown of Traditional Chinese Medicine".The compositions and types of the family,genus and species of the CMMR in Sichuan have significantly increased.The basic information of the CMR in Sichuan was clearly found out during the 4th CMMRI,and beneficial for the sustainable development and utilization of the CMMR in Sichuan.

Aneurysmal subarachnoid hemorrhage(aSAH),primarily caused by the rupture of intracranial aneurysms with bleeding into the subarachnoid space,is an acute neurological disease associated with high disability and mortality.Brain injury after aSAH results from a combination of injury mechanisms,with early brain injury(EBI)occurring within 72 hours post-onset,laying the foundation for subsequent pathophysiological changes in the brain and poor prognosis of patients.Among them,the brain immunoinflammatory response,involving the interaction of various immune cells and active substances,plays a significant role in post-aSAH EBI,and is related to delayed brain injury and long-term prognosis.Systemic inflammatory response following aSAH can also affect the prognosis and outcome of patients.This review summarizes the role of local and systemic immune inflammatory responses in the occurrence and progression of aSAH,as well as the research progress on related inflammatory biomarkers and therapeutic prospects,aiming to provide a theoretical reference for new treatment for aSAH.

Aim To explore the effect of γ-ray on the mRNA,protein expression levels and metabolic activity level of the key drug metabolic enzyme CYP3A1 in rat liver. Methods Wistar rats were randomly divided into control group, 24 h post-radiation group and 72 h post-radiation group. The experimental group was exposed to total body irradiation of single 6 Gy γ-ray. Blood was collected from the orbital venous plexus for blood routine examination and biochemical analysis 24 h and 72 h after irradiation, and liver tissue was prepared for quantifying expression of CYP3A1 mRNA and liver-specific microRNA (miR-122-5p) through RT-PCR. The expression level of CYP3A1 protein was analyzed by Western blot, and the metabolic activity level of CYP3A1 detected by the specific substrate midazolam combined with LC-MS method. Results Com¬pared with the control group, the weights of the rats in the radiation group significantly decreased, and the number of white blood cells was markedly reduced. Simultaneously, the activities of alanine aminotrans-ferase and alkaline phosphatase continuously descended, as well as the levels of total bilirubin and bile acid significantly increased, which indicated that the liver may be damaged after radiation. The relative expression of CYP3A1 mRNA continued to increase significantly 24 h and 72 h after irradiation. CYP3A1 protein expression and metabolic activity levels showed an obvious increasing trend 24 h after irradiation, and rose significantly 72 h after irradiation compared with the control group. At the same time, the expression of miR-122-5p in liver of rats in the 24 h and 72 h post-radiation group continued to decrease rapidly compared with the control group. Conclusions γ-ray radiation may arouse damage effect on liver, which leads to the continuous up-regulation of the mRNA and protein expression levels of the capital metabolic enzyme CYP3A1 in liver tissue, as well as the elevation of the metabolic activity level. The regulatory mechanism might be related to miR-122-5p.